CN113858543A - Double-acting clamping jig with shearing function - Google Patents

Abstract

The invention discloses a double-acting clamping jig with a shearing function, which comprises a fixed frame, a first driving mechanism, a second driving mechanism, scissors, a clamping jaw block and a first inclined pushing block, wherein the first driving mechanism, the second driving mechanism and the scissors are respectively arranged on the fixed frame, the clamping jaw block is arranged below the scissors, the first inclined pushing block is in sliding connection with the fixed frame, the first driving mechanism drives the first inclined pushing block to slide, a first guide groove is formed in the first inclined pushing block, the first guide groove is of a V-shaped structure, the large opening of the first guide groove faces towards the scissors, a handle of the scissors is in contact with the side wall of the first guide groove, and the second driving mechanism drives the clamping jaw block to move. The invention provides a double-acting clamping jig with a shearing function, which can avoid the interference possibly generated with a punch of a punching machine caused by the deformation of a material rod by shearing the material rod of an injection molding product, thereby realizing the further shortening of the injection molding period.

Description

Double-acting clamping jig with shearing function

Technical Field

The invention relates to the technical field of material taking jigs, in particular to a double-acting clamping jig with a shearing function.

Background

As a competitive industry, the injection molding industry has one of the most important parameters of cost control and capacity control. If the injection molding cycle can be effectively reduced, competitive advantages can be gained. At present, the traditional method for reducing the period does not relate to a clamp for taking materials, generally, the injection molding piece is clamped by opening a mold after being cooled, the method can be used for clamping the injection molding piece only by waiting for complete cooling and shaping of the product, and the injection molding period cannot be reduced to the maximum extent. If the product is cooled and shaped completely and then is clamped, the upper section of the material rod of the product can deform when the product is clamped, and the material rod deforms to cause interference possibly generated by a punch of the punching machine. Therefore, a double-acting clamping jig with a shearing function needs to be designed, and the material rod of the injection molding product is sheared short, so that the interference possibly generated by the deformation of the material rod and the punch of the punching machine is avoided, and the further shortening of the injection molding period is realized.

Chinese patent application publication No. CN208263347U, published as 2018, 12 and 21, entitled "a mechanical arm end shearing device", discloses a mechanical arm end shearing device, which includes: tool mounting panel and setting are in goods on the tool mounting panel are taken out the locking tool, goods take out the mouth of a river and are pressed from both sides and the pneumatic scissors device in mouth of a river, the goods is taken out the locking tool and is used for the centre gripping and fixes a position the work piece body, the goods is taken out the mouth of a river and is pressed from both sides and be used for the centre gripping work piece mouth of a river, the pneumatic scissors device in mouth of a river be used for with the separation that realizes work piece body and work piece mouth of a river is cut to work piece body and work piece mouth of a river junction. But this device is not suitable for gripping and shearing by injection moulding.

Disclosure of Invention

The invention provides a double-acting clamping jig with a shearing function, aiming at overcoming the defects that the injection molding product is clamped when not completely cooled and shaped and the material rod is deformed to possibly generate interference with a punch of a punching machine in the prior art, and the material rod of the injection molding product is sheared to avoid the possible interference with the punch of the punching machine caused by the deformation of the material rod, so that the injection molding period is further shortened.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a double acting centre gripping tool with shearing function, including the mount, first actuating mechanism, second actuating mechanism, the scissors, clamping jaw piece and first oblique pushing shoe, first actuating mechanism, second actuating mechanism and scissors set up respectively on the mount, the clamping jaw piece sets up in the scissors below, first oblique pushing shoe and mount sliding connection, first oblique pushing shoe of first actuating mechanism drive slides, be equipped with first guide way on the first oblique pushing shoe, first guide way is V font structure, the macrostoma of first guide way is towards the scissors, the handle of scissors and the lateral wall contact of first guide way, second actuating mechanism drive clamping jaw piece motion.

Among the above-mentioned technical scheme, the scissors is used for cutting off the upper segment that the product annotated the plastics pole, and the clamping jaw piece is used for pressing from both sides tight product to drive whole centre gripping tool and product by robotic arm and remove, be equipped with the reset spring that makes the scissors open in the scissors. When the clamp stretches into the injection mold and reaches the designated position, the material rod of a product enters the middle of the cutting edge of the scissors and the clamping jaw block, the clamping jaw block starts to close and clamp the material rod of the product, the first driving mechanism drives the first inclined pushing block to move forwards, and the scissors close and cut the upper section of the material rod of the product under the action of the first guide groove. When the action is finished, the first driving mechanism and the second driving mechanism return, the cutting edges and the clamping jaw blocks of the scissors are opened again and return to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality.

Preferably, the side wall of the first guide groove is of a V-shaped structure, and the handle of the scissors is provided with an outer side wall matched with the side wall of the first guide groove. The structure ensures that the scissors are not easy to skew when being cut off, and the cutting effect is better.

Preferably, the side wall of the handle of the scissors is provided with a guide wheel, the guide wheel is rotatably connected with the handle of the scissors, and the handle of the scissors is contacted with the first guide groove through the guide wheel. The structure can reduce the friction between the handles of the scissors and the first guide groove.

Preferably, the first inclined pushing block is connected with the fixed frame in a sliding mode through a guide rail. The structure can make the sliding of the first inclined pushing block more stable.

Preferably, the first driving mechanism is a linear cylinder. The structure can realize the driving of the first inclined pushing block. The first driving mechanism can also be a linear driving mechanism such as a linear motor, a screw rod and nut mechanism driven by the motor, a gear and rack mechanism driven by the motor and the like.

Preferably, the second driving mechanism is a clamping jaw air cylinder. The structure can realize the independent drive to the clamping jaw piece, makes the clamping jaw piece can press from both sides the material pole of tight product under the effect of clamping jaw cylinder.

Preferably, the second driving mechanism comprises a second inclined pushing block, the second inclined pushing block is fixed with the first inclined pushing block, two second guide grooves are formed in the second inclined pushing block, the number of the clamping jaw blocks is two, one end of each clamping jaw block is hinged to the fixing frame, and the other end of each clamping jaw block is connected with the corresponding second guide groove in a sliding mode.

Among the above-mentioned technical scheme, when anchor clamps stretched into injection mold and reached the assigned position, the material pole of product got into in the middle of scissors cutting edge and the clamping jaw piece, and first actuating mechanism drives first oblique ejector pad and the oblique ejector pad of second and moves forward simultaneously, and the clamping jaw piece begins to close and presss from both sides the material pole of tight product earlier under the effect of second guide way, and the scissors is closed under the effect of first guide way and cuts off the upper segment of the material pole of product. When the action is finished, the first driving mechanism returns, the cutting edges and the clamping jaw blocks of the scissors are opened again and return to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality. And the clamping and shearing actions of the product can be finished through one clamping jaw cylinder, so that the structure is more compact, the cost is lower, and the clamping and shearing are more reliable.

Preferably, the second driving mechanism comprises a second inclined pushing block, the second inclined pushing block is fixed with the first inclined pushing block, two second guide grooves are formed in the second inclined pushing block, the number of the clamping jaw blocks is two, one end of each clamping jaw block is hinged to the fixing frame, the sliding direction of each clamping jaw block is perpendicular to the moving direction of the second inclined pushing block, and the other end of each clamping jaw block is connected with the corresponding second guide groove in a sliding mode.

Among the above-mentioned technical scheme, when anchor clamps stretched into injection mold and reached the assigned position, the material pole of product got into in the middle of scissors cutting edge and the clamping jaw piece, and first actuating mechanism drives first oblique ejector pad and the oblique ejector pad of second and moves forward simultaneously, and the clamping jaw piece begins to close and presss from both sides the material pole of tight product earlier under the effect of second guide way, and the scissors is closed under the effect of first guide way and cuts off the upper segment of the material pole of product. When the action is finished, the first driving mechanism returns, the cutting edges and the clamping jaw blocks of the scissors are opened again and return to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality. And the clamping and shearing actions of the product can be finished through one clamping jaw cylinder, so that the structure is more compact, the cost is lower, and the clamping and shearing are more reliable.

Preferably, the clamping jaw block is provided with a sliding column, the sliding column is in sliding connection with the second guide groove, and the clamping jaw block is in sliding connection with the second guide groove through the sliding column. The structure can realize the guiding and clamping effect of the second guide groove on the clamping jaw block.

Preferably, the two second guide grooves are completely communicated, the two communicated second guide grooves form a V-shaped structure, the large opening faces the clamping jaw block, and the outer side wall of the clamping jaw block is in contact with the inner side wall of the second guide groove. The structure can realize the guiding and clamping effect of the second guide groove on the clamping jaw block.

Preferably, the clamping jaw block is provided with a compression spring and a contact block, the contact block is in sliding connection with the clamping jaw block, one end of the compression spring is connected with the clamping jaw block, the other end of the compression spring is connected with the contact block, and the clamping jaw block is in contact with the product material rod through the contact block. The structure can have certain flexible volume when the clamping jaw piece presss from both sides tight product material pole, avoids it to press from both sides tightly excessively, presss from both sides bad product.

Preferably, the side wall of the contact block is provided with a plurality of vertically arranged limit raised lines which are arranged at intervals. The structure can avoid the material rod to slide relative to the clamping plate when the clamping plate and the contact block clamp the material rod of the product, so that the clamping position is more accurate, and the clamping is more reliable.

Preferably, a rectangular groove is formed in the small-opening end of the second guide groove, and the rectangular groove is communicated with the small-opening end of the second guide groove. The structure can avoid the clamping jaw block from excessively clamping, and a product is damaged by clamping.

The invention has the beneficial effects that: (1) by cutting short the material rod of the injection molding product, the interference possibly generated with the punch of the punching machine caused by the deformation of the material rod is avoided, so that the further shortening of the injection molding period is realized; (2) the clamping and shearing actions of the product can be completed through one clamping jaw cylinder, the structure is more compact, the cost is lower, and the clamping and shearing are more reliable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial structural view ofembodiment 3;

FIG. 3 is a partial structural view of embodiment 4.

In the figure: the device comprises afixing frame 1, afirst driving mechanism 2, asecond driving mechanism 3, scissors 4, aclamping jaw block 5, a firstinclined pushing block 6, a first guide groove 6.1, aguide rail 7, a secondinclined pushing block 8, a second guide groove 8.1, a rectangular groove 8.2, acompression spring 9, acontact block 10, a limiting convex strip 10.1, asliding column 11 and areturn spring 12.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1, a double-acting clamping fixture with a shearing function includes afixing frame 1, afirst driving mechanism 2, asecond driving mechanism 3, scissors 4, aclamping jaw block 5 and a firstinclined pushing block 6, wherein thefirst driving mechanism 2, thesecond driving mechanism 3 and the scissors 4 are respectively arranged on thefixing frame 1, thefirst driving mechanism 2 is a linear cylinder, theclamping jaw block 5 is arranged below the scissors 4, the firstinclined pushing block 6 is slidably connected with thefixing frame 1 through aguide rail 7, thefirst driving mechanism 2 drives the firstinclined pushing block 6 to slide, a first guide groove 6.1 is arranged on the firstinclined pushing block 6, the first guide groove 6.1 is of a V-shaped structure, a large opening of the first guide groove 6.1 faces the scissors 4, a handle of the scissors 4 is in contact with a side wall of the first guide groove 6.1, and thesecond driving mechanism 3 drives theclamping jaw block 5 to move. The lateral wall of first guide way 6.1 is V font structure, and the handle of scissors 4 has the lateral wall and the lateral wall adaptation of first guide way 6.1.

Among the above-mentioned technical scheme, scissors 4 are used for cutting off the upper segment that the product annotated the plastics pole, and clampingjaw piece 5 is used for pressing from both sides tight product to drive whole centre gripping tool and product by robotic arm and remove, be equipped with the reset spring that makes scissors 4 open in scissors 4. When the clamp stretches into an injection mold and reaches a designated position, a material rod of a product enters the middle of a cutting edge of the scissors 4 and theclamping jaw block 5, thesecond driving mechanism 3 enables theclamping jaw block 5 to start to close and clamp the material rod of the product, thefirst driving mechanism 2 drives the firstinclined pushing block 6 to move forwards, and the scissors 4 close and cut the upper section of the material rod of the product under the action of the first guide groove 6.1. When the action is finished, thefirst driving mechanism 2 and thesecond driving mechanism 3 return to the original positions, the blades of the scissors 4 and theclamping jaw blocks 5 are opened again and return to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality.

Example 2:

on the basis ofembodiment 1, thesecond driving mechanism 3 is a gripper cylinder. The structure can realize the independent drive to the clampingjaw block 5, and the clampingjaw block 5 can clamp the material rod of a product under the action of the clamping jaw cylinder.

Example 3:

as shown in fig. 2, on the basis ofembodiment 1, thesecond driving mechanism 3 includes a second inclined pushingblock 8, the second inclined pushingblock 8 is fixed to the first inclined pushingblock 6, two second guide grooves 8.1 are provided on the second inclined pushingblock 8, the number of the clampingjaw blocks 5 is two, one end of each clampingjaw block 5 is hinged to the fixedframe 1, and the other end of each clampingjaw block 5 is slidably connected to the corresponding second guide groove 8.1. Be equipped withtraveller 11 on the clampingjaw piece 5,traveller 11 and second guide way 8.1 sliding connection, clampingjaw piece 5 passes throughtraveller 11 and second guide way 8.1 sliding connection. Be equipped withcompression spring 9 andcontact piece 10 on thejaw piece 5,contact piece 10 andjaw piece 5 sliding connection,compression spring 9 and one end andjaw piece 5 be connected,compression spring 9's the other end andcontact piece 10 are connected, andjaw piece 5 is throughcontact piece 10 and product material pole contact. The lateral wall of thecontact block 10 is provided with a plurality of vertically arranged limiting convex strips 10.1, and the plurality of limiting convex strips 10.1 are arranged at intervals.

Among the above-mentioned technical scheme, when anchor clamps stretched into injection mold and reached the assigned position, the material pole of product got into 4 cutting edges of scissors and 5 middles of clamping jaw piece, andfirst actuating mechanism 2 drives firstoblique ejector pad 6 and the forward movement of secondoblique ejector pad 8 simultaneously, and clampingjaw piece 5 begins to close and presss from both sides the material pole of product earlier under the effect of second guide way 8.1, and scissors 4 closes the upper segment of the material pole of cutting the product under the effect of first guide way 6.1. When the action is finished, thefirst driving mechanism 2 returns, the cutting edges of the scissors 4 and the clampingjaw blocks 5 are opened again, and the scissors are reset to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality. And the clamping and shearing actions of the product can be finished through one clamping jaw cylinder, so that the structure is more compact, the cost is lower, and the clamping and shearing are more reliable.

Example 4:

as shown in fig. 3, on the basis ofembodiment 1, thesecond driving mechanism 3 includes a second inclined pushingblock 8, the second inclined pushingblock 8 is fixed to the first inclined pushingblock 6, two second guide grooves 8.1 are provided on the second inclined pushingblock 8, the number of the clampingjaw blocks 5 is two, one end of each clampingjaw block 5 is hinged to the fixedframe 1, the sliding direction of each clampingjaw block 5 is perpendicular to the moving direction of the second inclined pushingblock 8, and the other end of each clampingjaw block 5 is slidably connected to the corresponding second guide groove 8.1. The two second guide grooves 8.1 are completely communicated, the two communicated second guide grooves 8.1 form a V-shaped structure, the large opening faces the clampingjaw block 5, and the outer side wall of the clampingjaw block 5 is in contact with the inner side wall of the second guide groove 8.1. Areturn spring 12 is arranged between the clamping jaw blocks 5. The small-mouth end of second guide way 8.1 is equipped with rectangular channel 8.2, and rectangular channel 8.2 communicates with the small-mouth end of second guide way 8.1. Be equipped withcompression spring 9 andcontact piece 10 on thejaw piece 5,contact piece 10 andjaw piece 5 sliding connection,compression spring 9 and one end andjaw piece 5 be connected,compression spring 9's the other end andcontact piece 10 are connected, andjaw piece 5 is throughcontact piece 10 and product material pole contact. The lateral wall of thecontact block 10 is provided with a plurality of vertically arranged limiting convex strips 10.1, and the plurality of limiting convex strips 10.1 are arranged at intervals.

In the technical scheme. When the clamp stretches into an injection mold and reaches a designated position, a material rod of a product enters the middle of a cutting edge of the scissors 4 and the clampingjaw block 5, thefirst driving mechanism 2 drives the first inclined pushingblock 6 and the second inclined pushingblock 8 to move forwards simultaneously, the clampingjaw block 5 starts to close under the action of the second guide groove 8.1 and clamps the material rod of the product firstly, and the scissors 4 closes under the action of the first guide groove 6.1 to cut off the upper section of the material rod of the product. When the action is finished, thefirst driving mechanism 2 returns, the cutting edges of the scissors 4 and the clampingjaw blocks 5 are opened again, and the scissors are reset to the original positions to prepare for the next cycle. Among the above-mentioned technical scheme, through the material pole of cutting short injection moulding product, avoided the material pole to warp the interference that probably produces with the punching machine drift that causes to make further shorten the cycle of moulding plastics and become the reality. The product can be clamped and sheared by one clamping jaw cylinder, the structure is more compact, the cost is lower, and the clamping and shearing are more reliable, so that the invention has the beneficial effects that: (1) by cutting short the material rod of the injection molding product, the interference possibly generated with the punch of the punching machine caused by the deformation of the material rod is avoided, so that the further shortening of the injection molding period is realized; (2) the clamping and shearing actions of the product can be completed through one clamping jaw cylinder, the structure is more compact, the cost is lower, and the clamping and shearing are more reliable.

Claims (10)

1. The utility model provides a double acting centre gripping tool with shearing function, characterized by, including the mount, first actuating mechanism, second actuating mechanism, the scissors, clamping jaw piece and first oblique pushing block, first actuating mechanism, second actuating mechanism and scissors set up respectively on the mount, the clamping jaw piece sets up in the scissors below, first oblique pushing block and mount sliding connection, first oblique pushing block of first actuating mechanism drive slides, be equipped with first guide way on the first oblique pushing block, first guide way is V font structure, the macrostoma of first guide way is towards the scissors, the handle of scissors and the lateral wall contact of first guide way, second actuating mechanism drive clamping jaw piece motion.

2. The double-acting clamping jig with the shearing function as claimed in claim 1, wherein the side wall of the first guide groove is of a V-shaped structure, and the handle of the scissors is provided with an outer side wall matched with the side wall of the first guide groove.

3. The double-acting clamping jig with the shearing function as claimed in claim 1, wherein the guide wheels are arranged on the side walls of the handles of the scissors, the guide wheels are rotatably connected with the handles of the scissors, and the handles of the scissors are in contact with the first guide grooves through the guide wheels.

4. The double-acting clamping jig with the shearing function as claimed in claim 1, 2 or 3, wherein the first inclined pushing block is connected with the fixed frame in a sliding manner through a guide rail.

5. The double-acting clamping jig with the shearing function as claimed in claim 1, wherein the second driving mechanism comprises a second inclined pushing block, the second inclined pushing block is fixed with the first inclined pushing block, two second guide grooves are formed in the second inclined pushing block, the number of the clamping jaw blocks is two, one end of each clamping jaw block is hinged with the fixing frame, and the other end of each clamping jaw block is slidably connected with the corresponding second guide groove.

6. The double-acting clamping jig with the shearing function as claimed in claim 1, wherein the second driving mechanism comprises a second inclined pushing block, the second inclined pushing block is fixed with the first inclined pushing block, two second guide grooves are formed in the second inclined pushing block, the number of the clamping jaw blocks is two, one end of each clamping jaw block is hinged with the fixing frame, the sliding direction of each clamping jaw block is perpendicular to the moving direction of the second inclined pushing block, and the other end of each clamping jaw block is slidably connected with the corresponding second guide groove.

7. The double-acting clamping jig with the shearing function as claimed in claim 5 or 6, wherein the clamping jaw block is provided with a sliding column, the sliding column is slidably connected with the second guide groove, and the clamping jaw block is slidably connected with the second guide groove through the sliding column.

8. The double-acting clamping jig with the shearing function as claimed in claim 5 or 6, wherein the two second guide grooves are completely communicated, the two communicated second guide grooves form a V-shaped structure, the large opening faces the clamping jaw block, and the outer side wall of the clamping jaw block is in contact with the inner side wall of the second guide groove.

9. The double-acting clamping jig with the shearing function as claimed in claim 5 or 6, wherein the clamping jaw block is provided with a compression spring and a contact block, the contact block is connected with the clamping jaw block in a sliding manner, one end of the compression spring is connected with the clamping jaw block, the other end of the compression spring is connected with the contact block, and the clamping jaw block is in contact with the product material rod through the contact block.

10. The double-acting clamping jig with the shearing function as claimed in claim 9, wherein a plurality of vertically arranged limiting convex strips are arranged on the side wall of the contact block, and a plurality of limiting convex strips are arranged at intervals.

Images