CN110947840A - A kind of exhaust end cone blanking forming die of automobile exhaust system - Google Patents

Abstract

The invention discloses a blanking forming die for an air outlet end cone of an automobile exhaust system, which comprises an upper die plate, a lower die plate, a front end feeding guide mechanism, a positioning structure forming mechanism, a plate positioning mechanism, a male die punch and a female die cavity, wherein the male die punch is arranged at the bottom of the upper die plate, and the lower die plate is provided with the female die cavity corresponding to the male die punch; the feeding end of the lower template is also provided with a front end feeding guide mechanism, the front end feeding guide mechanism guides the straight line of the plate material to be pushed in the conveying direction, the positioning structure forming mechanism is arranged on the upper template, the positioning structure forming mechanism forms a positioning structure, the adjacent male die punch of the plate material positioning mechanism is arranged on the lower template, the plate material positioning mechanism is located on a displacement path of the positioning structure, the plate material positioning mechanism is used for positioning the length of the plate material pushed in the die by the positioning structure, the manufacturing cost is low, and the plate material can be quickly positioned in the blanking die.

Description

Automobile exhaust system's end awl blanking forming die of giving vent to anger

Technical Field

The invention belongs to the field of dies, and particularly relates to a blanking forming die for an air outlet end cone of an automobile exhaust system.

Background

The automobile exhaust system comprises an air outlet end cone shell used for connecting a pipeline, and the air outlet end cone shell is formed by adopting a die stamping process. Therefore, before processing, a blanking sheet is prepared, which is approximately circular, and in the current processing mode, the positioning mode in blanking is generally as follows: the intermittent equidistant transmission is realized through a programming program through a screw rod or belt transmission mechanism, a clamping mechanism and the like, but the process needs a control system, the clamping mechanism and the like and also needs frequent starting and stopping, so that the loss of a motor is large, and the manufacturing cost is high.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the blanking forming die for the air outlet end cone of the automobile exhaust system, which is low in manufacturing cost and can realize the rapid positioning of the plate in the blanking die.

The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:

a blanking forming die for an air outlet end cone of an automobile exhaust system comprises an upper die plate, a lower die plate, a pressure plate, a front end feeding guide mechanism, a positioning structure forming mechanism, a plate positioning mechanism, a male die punch and a female die cavity, wherein the male die punch is arranged at the bottom of the upper die plate, the pressure plate is sleeved on the outer side of the male die punch, and the lower die plate is provided with the female die cavity corresponding to the male die punch; the feeding end of the lower template is also provided with a front end feeding guide mechanism, the front end feeding guide mechanism guides the straight line of the plate material to be pushed in the conveying direction, the positioning structure forming mechanism is arranged on the upper template, the positioning structure forming mechanism forms a positioning structure, the adjacent male die punch of the plate material positioning mechanism is arranged on the lower template, the plate material positioning mechanism is located on the displacement path of the positioning structure, and the plate material positioning mechanism is used for positioning the length of the plate material pushed in the die by the positioning structure.

Furthermore, the positioning structure forming mechanism comprises a positioning structure forming punch arranged at the bottom of the upper die plate and a positioning structure forming female die arranged on the upper surface of the lower die plate, the positioning structure forming punch and the positioning structure forming female die are correspondingly arranged, the plate is punched by the positioning structure forming mechanism to form a downward sunken positioning structure in a die closing state, and the positioning structure protrudes below the bottom surface of the plate.

Furthermore, the plate positioning mechanism and the positioning structure forming mechanism are positioned in front of the male die punch in the conveying direction of the plate, and the minimum distance between the positioning structure forming mechanism and the male die punch is larger than the pushing distance of the plate each time; when the positioning structure abuts against the plate positioning mechanism, the positioning structure is located in a plate area to be blanked.

Further, location structure shaping drift is the big toper structure in little top in bottom, just location structure shaping drift is the locating surface shaping wall towards a lateral wall of sheet material location structure, just the locating surface shaping wall is vertical wall.

Furthermore, the plate positioning mechanism comprises a first elastic body and a plate positioning column, the lower template is provided with a positioning guide hole in a vertical through manner, the plate positioning column is slidably arranged in the positioning guide hole in a penetrating manner, and the bottom end of the plate positioning column is elastically and telescopically connected to the lower die fixing plate through the first elastic body; the top ends of the plate positioning columns extend into or extend out of the upper surface of the lower template through the first elastic bodies.

The device is characterized by further comprising a floating mechanism, wherein the floating mechanism is arranged between the front-end feeding guide mechanism and the positioning structure forming mechanism, the floating mechanism is arranged below the sheet material, and the floating mechanism elastically floats the sheet material subjected to die opening upwards; the floating mechanism comprises a second elastic body and an ejector pin, a floating guide hole is formed in the lower template in a vertically penetrating mode, the ejector pin is slidably arranged in the floating guide hole in a penetrating mode, and the bottom end of the ejector pin is elastically and telescopically connected to the lower die fixing plate through the second elastic body; and when the die is opened, the plate rises upwards through the liftout pin, and the positioning structure is separated from the positioning structure to form the female die.

The waste material cutting mechanism is arranged at the discharge end of the plate material, and cuts off the blanked plate material;

the waste cutting mechanism comprises an upper waste cutter and a lower waste cutter, the upper waste cutter is arranged on the side wall of the upper template corresponding to the discharge end, the lower waste cutter is arranged on the side wall of the lower template corresponding to the discharge end, the lower waste cutter is positioned in front of the upper waste cutter in the conveying direction of the plate, and the cutting edges of the upper waste cutter and the lower waste cutter are arranged in a gap manner; and under the die assembly state, the upper waste material cutter and the lower waste material cutter alternately shear the plate.

The blanking device comprises at least two groups of waste material cutting mechanisms, wherein the waste material cutting mechanisms are arranged at intervals in the plate material conveying direction, and the waste material cutting mechanisms are arranged corresponding to connecting plate materials between two adjacent blanking holes on the plate material respectively.

Furthermore, the punch comprises a first punch and a second punch, and the second punch is arranged at a distance from the second punch in the width direction of the plate.

Further, front end feeding guiding mechanism includes backup pad, backing plate and clamp plate, the backup pad sets up on the feed end lateral wall of bed die, the last top surface and the die joint coplane of backup pad set up, the backup pad respectively is provided with the backing plate, two on the width direction of sheet material the backing plate is all set up in two length arris walls of sheet material in the clearance, respectively be provided with the clamp plate on the backing plate, two the clamp plate extends to between two backing plates, just the interval of clamp plate and backup pad is greater than the thickness of sheet material.

Has the advantages that: according to the invention, the positioning structure forming mechanism and the plate positioning mechanism are used for forming the positioning structure for the plate, and the formed positioning structure is positioned through the plate positioning mechanism, so that the pushing distance of the plate is positioned through the plate, and the plate positioning mechanism has the advantages of simple structure, low manufacturing cost, convenience in operation and high efficiency.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a top view of the upper template structure of the present invention;

FIG. 4 is a schematic diagram of a sheet stock layout of the present invention;

FIG. 5 is an enlarged schematic view of portion A of FIG. 1 in accordance with the present invention;

fig. 6 is a schematic view of the positioning post and the positioning structure of the present invention in a positioning state.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, an air outlet end cone blanking forming die of an automobile exhaust system comprises an upper die plate 1, alower die plate 2, apressure plate 3, a front endfeeding guide mechanism 4, a positioningstructure forming mechanism 6, a platematerial positioning mechanism 7, amale die punch 11 and afemale die cavity 12, wherein themale die punch 11 is arranged at the bottom of the upper die plate 1, thepressure plate 3 is sleeved outside themale die punch 11, thepressure plate 3 elastically displaces up and down relative to themale die punch 11, thelower die plate 2 is provided with thefemale die cavity 12 corresponding to themale die punch 11, the feeding end of thelower die plate 2 is further provided with the front endfeeding guide mechanism 4, the front endfeeding guide mechanism 4 guides the linear pushing of aplate material 10 in the conveying direction, the front endfeeding guide mechanism 4 prevents theplate material 10 from deviating in the width direction, the positioningstructure forming mechanism 6 is arranged on the upper die plate, and the positioningstructure forming mechanism 6 is used for forming thepositioning structure 20, when the die is closed, the positioning structure forming mechanism punches the sheet material to obtain thepositioning structure 20, the sheetmaterial positioning mechanism 7 is arranged on thelower die plate 2 adjacent to themale die punch 11, the sheetmaterial positioning mechanism 7 is positioned on a displacement path of thepositioning structure 20, the sheetmaterial positioning mechanism 7 positions the length of thesheet material 10 pushed into the die through thepositioning structure 20, when the blanking is completed, thepositioning structure 20 is simultaneously processed, after the blanking is completed, the sheet material is pushed along the length direction of the sheet material until thepositioning structure 20 is abutted against the sheetmaterial positioning mechanism 7, the length of the next sheet material to be blanked is obtained, then the die is closed to blank the next sheet material, and the like. The sheet material is subjected to the forming of the positioning structure through the positioning structure forming mechanism and the sheet material positioning mechanism, and the formed positioning structure is positioned through the sheet material positioning mechanism, so that the pushing distance of the sheet material is positioned through the sheet material, and the sheet material forming machine is simple in structure, low in manufacturing cost, convenient to operate and high in efficiency.

The positioningstructure forming mechanism 6 comprises a positioningstructure forming punch 14 arranged at the bottom of the upper die plate 1 and a positioning structure formingfemale die 15 arranged on the upper surface of thelower die plate 2, the positioningstructure forming punch 14 and the positioning structure formingfemale die 15 are correspondingly arranged, in a die assembly state, theplate 10 is punched by the positioningstructure forming mechanism 6 to form a downwardsunken positioning structure 20, and thepositioning structure 20 protrudes below the bottom surface of theplate 10. When the plate is pushed forwards, thepositioning structure 20 and theplate positioning mechanism 7 are abutted to each other to position the plate. The sheetmaterial positioning mechanism 7 and the positioningstructure forming mechanism 6 are positioned in front of themale die punch 11 in the conveying direction of thesheet material 10, and the minimum distance between the positioningstructure forming mechanism 6 and themale die punch 11 is larger than the pushing distance of thesheet material 10 every time; that is, when thepositioning structure 20 abuts on theplate positioning mechanism 7, thepositioning structure 20 is located in the area of the plate to be blanked. When blanking is finished, thepositioning structure 20 is processed at the same time, after blanking is finished, the sheet is pushed along the length direction of the sheet until thepositioning structure 20 abuts against thesheet positioning structure 7, the length of the next blanking piece to be blanked is obtained, then the die is closed to blank the next blanking piece, and the like.

As shown in fig. 5 and fig. 6, the positioningstructure forming punch 14 is a conical structure with a small bottom end and a large top end, so as to facilitate the positioningstructure forming punch 14 to punch a die from a sheet material, a side wall of the positioningstructure forming punch 14 facing the sheetmaterial positioning structure 7 is a positioningsurface forming wall 14a, the positioningsurface forming wall 14a is a vertical wall surface, so as to ensure that one surface of thepositioning structure 20 abutting against the sheet material positioning structure can be stably contacted, and the positioning position is accurate each time,

as shown in fig. 1, theplate positioning mechanism 7 includes a firstelastic body 18 and aplate positioning column 19, a positioning guide hole is formed in thelower die plate 2 in a vertically through manner, theplate positioning column 19 is slidably inserted into the positioning guide hole, and the bottom end of theplate positioning column 19 is elastically and telescopically connected to the lower die fixing plate through the firstelastic body 18; the top ends of theplate positioning columns 19 extend into or out of the upper surface of thelower template 2 through the firstelastic bodies 18. In the die sinking state after blanking, the sheetmaterial positioning column 19 rebounds upwards and limits thepositioning structure 20, and because the sheet material is blanked, the sheet material close to theblanking hole 10a is light and easy to upwarp, when thesheet material 10 is pushed forwards by force, the sheet material presses the sheetmaterial positioning column 19 downwards, and because the sheet material at the front section upwarps, the positioning structure close to theblanking hole 10a passes through the sheetmaterial positioning mechanism 7 to be pushed forwards until thenext positioning structure 20 abuts against the sheet material positioning column, and the positioning of the sheet material is completed.

The device is characterized by further comprising afloating mechanism 5, wherein thefloating mechanism 5 is arranged between the front endfeeding guide mechanism 4 and the positioningstructure forming mechanism 6, thefloating mechanism 5 is arranged below thesheet material 10, and thefloating mechanism 5 elastically floats thesheet material 10 after the die is opened upwards; thefloating mechanism 5 comprises a second elastic body 22 and an ejector pin 23, a floating guide hole is formed in thelower template 2 in a vertically penetrating manner, the ejector pin 23 is slidably arranged in the floating guide hole in a penetrating manner, and the bottom end of the ejector pin 23 is elastically and telescopically connected to the lowerdie fixing plate 21 through the second elastic body 22; when the die is opened, theplate 10 floats upwards through the ejector pin 23, and thepositioning structure 20 is separated from the positioning structure formingfemale die 15. The sheet material is supported to a certain degree by the buoyancy lifting mechanism, and the formedpositioning structure 20 is separated from the positioning structure formingfemale die 15.

As shown in fig. 1, the blanking device further comprises a wastematerial cutting mechanism 8, wherein the wastematerial cutting mechanism 8 is arranged at the discharge end of theplate material 10, and the wastematerial cutting mechanism 8 cuts off the blanked plate material;

thewaste cutting mechanism 8 comprises anupper waste cutter 24 and a lower waste cutter 25, theupper waste cutter 24 is arranged on the side wall of the upper template 1 corresponding to the discharge end, the lower waste cutter 25 is arranged on the side wall of thelower template 2 corresponding to the discharge end, the lower waste cutter 25 is positioned in front of theupper waste cutter 24 in the conveying direction of the plate material, and the cutting edges of theupper waste cutter 24 and the lower waste cutter 25 are arranged in a clearance mode; and in a matched die state, the upperwaste material cutter 24 and the lower waste material cutter 25 alternately shear theplate 10. Contain at least two sets of wastematerial excision mechanism 8, and a plurality of wastematerial excision mechanism 8 is handling in the setting of sheet material direction of transfer interval, and a plurality ofwaste material excision 8 is corresponding to the connection sheet material setting between twoadjacent blanking holes 30 on the sheet material respectively. Redundant waste on the blanked plate is cut off through thewaste cutting mechanisms 8, so that the occupied space of the plate is reduced, and the safety during processing is guaranteed. Thelower die plate 2 is also provided with aflow guide block 9 adjacent to the lower waste material cutter 25, and the top end of theflow guide block 9 is aflow guide surface 9a which inclines downwards and towards the outer side of the die so as to be beneficial to flow guide of waste materials.

Thepunch head 11 comprises afirst punch head 11a and a second punch head 11b, and at least one second punch head 11b is arranged at a distance from the second punch head 11b in the width direction of the sheet material. So that the multi-row discharging can be realized, and the utilization rate of the plate can be increased.

Front end feeding guidingmechanism 4 includesbackup pad 27,backing plate 29 andclamp plate 28,backup pad 27 sets up on the feed end lateral wall oflower bolster 2,backup pad 27's last top surface and die joint coplane set up,backup pad 27 respectively is provided withbacking plate 29, two on the width direction of sheetmaterial backing plate 29 is equal to be gapped in the setting of two length edges and walls ofsheet material 10, respectively be provided withclamp plate 28 on thebacking plate 29, twoclamp plate 28 extends to between twobacking plates 29, justclamp plate 28 is greater than the thickness ofsheet material 10 withbackup pad 27's interval, carries out spacing and direction about, to the sheet material through front end feeding guidingmechanism 4, guarantees the mobility stability and the good guidance quality of sheet material on the mould.

The plate bending machine is characterized by further comprising a plurality offloating guide mechanisms 13, wherein the plurality offloating guide mechanisms 13 are distributed on the lower template at intervals along the length direction of a plate, the plurality offloating guide mechanisms 13 are respectively positioned on two sides of the plate in the width direction and guide two long edges of the plate, and thefloating guide mechanisms 13 guide theplate 10; the buoyancylifting guide mechanism 13 comprises a thirdelastic body 17 and a buoyancy lifting guide post 16, a buoyancy lifting guide hole is formed in thelower template 2 in a vertically penetrating manner, the buoyancy lifting guide post 16 is slidably arranged in the buoyancy lifting guide hole in a penetrating manner, and the bottom end of the buoyancy lifting guide post 16 is elastically and telescopically connected to a lowerdie fixing plate 21 through the thirdelastic body 17; the top end of the buoyancy lifting guide post 16 is annularly provided with an annular guide groove, two long edges of theplate 10 are correspondingly arranged in the annular guide groove, and the plate is limited and guided up and down, left and right through a buoyancy lifting guide mechanism.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (10)

1. The utility model provides an end awl blanking forming die gives vent to anger of car exhaust system which characterized in that: the stamping die comprises an upper die plate (1), a lower die plate (2), a pressure plate (3), a front end feeding guide mechanism (4), a positioning structure forming mechanism (6), a plate positioning mechanism (7), a male die punch (11) and a female die cavity (12), wherein the male die punch (11) is arranged at the bottom of the upper die plate (1), the pressure plate (3) is sleeved on the outer side of the male die punch (11), and the female die cavity (12) is arranged on the lower die plate (2) corresponding to the male die punch (11); the feeding end of the lower die plate (2) is further provided with a front end feeding guide mechanism (4), the front end feeding guide mechanism (4) guides the straight line of the plate material (10) to be pushed in the conveying direction, the positioning structure forming mechanism (6) is arranged on the upper die plate, the positioning structure forming mechanism (6) forms a positioning structure (20), the adjacent punch heads (11) of the plate material positioning mechanism (7) are arranged on the lower die plate (2), the plate material positioning mechanism (7) is located on the displacement path of the positioning structure (20), and the plate material positioning mechanism (7) is used for positioning the length of the plate material (10) pushed in the die by the positioning structure (20).

2. The blanking and forming die for the air outlet end cone of the automobile exhaust system according to claim 1, characterized in that: location structure forming mechanism (6) are in including setting up location structure shaping drift (14) and the setting in cope match-plate pattern (1) bottom location structure shaping die (15) of lower bolster (2) upper surface, location structure shaping drift (14) with location structure shaping die (15) correspond the setting, under the compound die state, location structure (20) of decurrent sunken form are formed through location structure forming mechanism (6) punching press in sheet material (10), location structure (20) protrusion to the bottom surface below of sheet material (10).

3. The blanking forming die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the plate positioning mechanism (7) and the positioning structure forming mechanism (6) are positioned in front of the male die punch head (11) in the conveying direction of the plate (10), and the minimum distance between the positioning structure forming mechanism (6) and the male die punch head (11) is larger than the pushing distance of the plate (10) every time; when the positioning structure (20) abuts against the plate positioning mechanism (7), the positioning structure (20) is located in a plate area to be blanked.

4. The blanking forming die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the positioning structure forming punch (14) is a conical structure with a small bottom end and a large top end, a positioning surface forming wall (14a) is arranged on one side wall, facing the plate positioning structure (7), of the positioning structure forming punch (14), and the positioning surface forming wall (14a) is a vertical wall surface.

5. The blanking forming die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the plate positioning mechanism (7) comprises a first elastic body (18) and a plate positioning column (19), a positioning guide hole is formed in the lower die plate (2) in a vertically through mode, the plate positioning column (19) penetrates through the positioning guide hole in a sliding mode, and the bottom end of the plate positioning column (19) is elastically and telescopically connected to the lower die fixing plate through the first elastic body (18); the top end of the plate positioning column (19) extends into or out of the upper surface of the lower template (2) through a first elastic body (18).

6. The blanking forming die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the device is characterized by further comprising a floating mechanism (5), wherein the floating mechanism (5) is arranged between the front end feeding guide mechanism (4) and the positioning structure forming mechanism (6), the floating mechanism (5) is arranged below the sheet material (10), and the floating mechanism (5) elastically floats upwards to lift the sheet material (10) after the die is opened; the floating mechanism (5) comprises a second elastic body (22) and an ejection pin (23), a floating guide hole is formed in the lower template (2) in a vertically penetrating mode, the ejection pin (23) penetrates through the floating guide hole in a sliding mode, and the bottom end of the ejection pin (23) is elastically and telescopically connected to the lower die fixing plate through the second elastic body (22); when the die is opened, the plate (10) floats upwards through the jacking pin (23), and the positioning structure (20) is separated from the positioning structure forming female die (15).

7. The blanking and forming die for the air outlet end cone of the automobile exhaust system according to any one of claims 1 to 6, characterized in that: the blanking device is characterized by further comprising a waste material cutting mechanism (8), wherein the waste material cutting mechanism (8) is arranged at the discharging end of the plate material (10), and the waste material cutting mechanism (8) cuts off the blanked plate material;

the waste cutting mechanism (8) comprises an upper waste cutter (24) and a lower waste cutter (25), the upper waste cutter (24) is arranged on the side wall of the upper template (1) corresponding to the discharge end, the lower waste cutter (25) is arranged on the side wall of the lower template (2) corresponding to the discharge end, the lower waste cutter (25) is positioned in front of the upper waste cutter (24) in the conveying direction of the plate, and the cutting edges of the upper waste cutter (24) and the lower waste cutter (25) are arranged in a clearance mode; and under the condition of die assembly, the upper waste material cutter (24) and the lower waste material cutter (25) shear the plate material (10) in a staggered manner.

8. The blanking and forming die for the air outlet end cone of the automobile exhaust system according to claim 7, characterized in that: contain at least two sets ofly waste material excision mechanism (8), and a plurality of waste material excision mechanism (8) are being dealt with and are setting up in sheet material direction of transfer interval, and a plurality of waste material excision (8) are corresponding to the connection sheet material setting between two adjacent blanking holes (30) on the sheet material respectively.

9. The blanking and forming die for the air outlet end cone of the automobile exhaust system according to claim 1, characterized in that: the punch head (11) comprises a first punch head (11a) and a second punch head (11b), and at least one second punch head (11b) is arranged at a distance from the second punch head (11b) in the width direction of the plate.

10. The blanking and forming die for the air outlet end cone of the automobile exhaust system according to claim 1, characterized in that: front end feeding guiding mechanism (4) are including backup pad (27), backing plate (29) and clamp plate (28), backup pad (27) set up on the feed end lateral wall of lower bolster (2), the last top surface and the die joint coplane setting of backup pad (27), backup pad (27) respectively are provided with backing plate (29), two on the width direction of sheet material backing plate (29) all are gapped in the setting of two length edges and walls of sheet material (10), respectively be provided with clamp plate (28) on backing plate (29), two clamp plate (28) extend to between two backing plate (29), just the interval of clamp plate (28) and backup pad (27) is greater than the thickness of sheet material (10).

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