Background
Connecting rods are important parts in engines and connect pistons to a crankshaft, which functions to transform the reciprocating motion of the pistons into rotational motion of the crankshaft and to transmit forces acting on the pistons to the crankshaft to output power. The connecting rod is mostly a steel piece, holes are formed at two ends of the connecting rod, bronze bushings or needle bearings are arranged in the holes and are used for being installed in the shaft pins to form hinge joints. The existing engine connecting rod main body can be cut to separate a connecting rod cover, and the connecting rod cover is connected with a rod body through bolts and nuts, so that the engine connecting rod main body can be processed with bolt holes in advance before cutting so as to facilitate assembly between the subsequent connecting rod cover and the rod body, and the connecting rod main body can be fixed by using a clamp when the bolt holes are processed so as to facilitate stable drilling of a lathe drill bit.
According to an authorization document 'engine connecting rod bolt hole drilling clamp' with the publication number of CN217701429U, an upper die and a lower die are clamped, a protruding part on the upper die is clamped into a limiting ring, an elastic protruding part is clamped into the limiting ring on the lower die, the whole limiting ring can be elastically supported from the inner side of the limiting ring, and the small end of the connecting rod and the limiting ring are firmly installed; the positioning pieces protruding from the fixing seat are inserted into the clamping grooves on the upper die and the lower die, two side walls of the fixing seat are limited with the upper die and the lower die, and the hinge can be clamped into the concave part on the fixing seat, so that the assembly of the fixing seat and the upper die and the lower die is not affected; finally, a through groove is formed in the bottom of the lower die, and when the lower die is transferred and transported, the lower die can be clamped into the through groove by using the clamping piece for limiting, and at the moment, the whole die cannot shake.
However, the engine connecting rods have different specifications, the sizes of the engine connecting rods with different specifications are different, the upper die and the lower die of the clamp cannot be correspondingly adjusted, and the engine connecting rods with different specifications cannot be stably clamped, so that inconvenience is brought.
Disclosure of Invention
The utility model aims to provide a bolt hole drilling fixture for an engine connecting rod, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an engine connecting rod is with boring bolt hole anchor clamps, includes the supporting seat, the lateral wall laminating of supporting seat has a plurality of connecting rod main part, and corresponds a plurality of connecting rod main part departments on the supporting seat respectively and all be equipped with positioning mechanism and fixed establishment down in proper order from last, fixed establishment includes the hole groove, the hole groove is seted up on the lateral wall of supporting seat, and the inside side rotation in hole groove is connected with the silk post, the lantern ring has been cup jointed to the outer wall screw thread of silk post, and is equipped with the locating part between silk post and the hole groove, and the one end fixedly connected with rotary block of silk post, rotate on the outer wall of lantern ring and be connected with the polylith connecting plate, the polylith the one end that the lantern ring was kept away from to the connecting plate all rotates and is connected with the guide block, the polylith the guide block all slides and sets up in the inner wall of supporting seat, and the equal fixedly connected with arc board of lateral wall of polylith the guide block the outer wall of arc board all laminates on the circle-shaped wall of connecting rod main part.
Preferably, the positioning mechanism comprises a chute, the chute is arranged on the side wall of the supporting seat, the chute is positioned above the hole groove, two clamping plates are attached to the inside of the chute in a sliding manner, the two clamping plates are attached to the front wall surface and the rear wall surface of the rod body of the connecting rod main body respectively, a transmission part is arranged between the two clamping plates and the supporting seat, and a stabilizing piece is arranged between one clamping plate and the connecting rod main body.
Preferably, the driving medium includes two U type pieces, two the equal fixed connection of U type piece is kept away from on the one end lateral wall of connecting rod main part at the supporting seat, and the corresponding one side of two U type pieces is aligned with the inside front and back terminal surface of spout respectively, wherein one the outer wall rotation of U type piece is connected with the screw rod, the one end of screw rod runs through in another U type piece, another the outer wall fixedly connected with rubber circle of U type piece, the inner wall of rubber circle closely laminates with the outer wall of screw rod, the tip fixedly connected with second rotating block of screw rod, and the outer wall both sides screw thread of screw rod is the symmetry setting, and the outer wall both sides of screw rod run through respectively and screw in the inner wall of two splint.
Preferably, the fixing piece comprises a U-shaped plate, the U-shaped plate is fixedly connected to one end, away from the screw rod, of one clamping plate, the inner wall of the U-shaped plate is penetrated and screwed with a stud, one end of the stud is tightly attached to the side face of the rod body of the connecting rod main body, and the other end of the stud is fixedly connected with a first rotating block.
Preferably, the limiting part comprises two symmetrical long rods, one ends of the two long rods are fixedly connected to the edge of the inner wall of the hole groove, the corresponding ends of the two long rods are fixedly connected with a fixing ring, the inner wall of the fixing ring is fixedly connected with a rubber ring, and the inner wall of the rubber ring is tightly attached to the outer wall of the wire column.
Preferably, the guide groove is arranged on the inner side surface of the hole groove, the guide block is in sliding fit with the guide groove, the guide clamping groove is arranged on the inner wall of the guide groove, the guide clamping block is fixedly connected with the outer wall of the guide block, and the guide clamping block is in sliding fit with the guide clamping groove.
Compared with the prior art, the utility model has the beneficial effects that: through the cooperation between supporting seat, positioning mechanism, fixed establishment and the steady piece, this anchor clamps can carry out firm centre gripping to the engine connecting rod of different specifications when the screw hole processing of engine connecting rod to bring the convenience.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-5, an engine connecting rod is with boring bolt hole anchor clamps in the illustration, including supportingseat 1, the lateral wall laminating of supportingseat 1 has a plurality of connecting rodmain part 3, and the department that corresponds a plurality of connecting rodmain part 3 on the supportingseat 1 respectively all is equipped with positioning mechanism and fixed establishment from top to bottom in proper order, fixed establishment includeshole groove 14, thehole groove 14 is offered on the lateral wall of supportingseat 1, and the inside side rotation ofhole groove 14 is connected withwire column 24, the outer wall screw thread ofwire column 24 has cup jointed thelantern ring 20, and be equipped with the locating part betweenwire column 24 and thehole groove 14, and the one end fixedly connected withrotatory piece 23 ofwire column 24, rotate on the outer wall oflantern ring 20 and be connected withpolylith connecting plate 19, the one end thatpolylith connecting plate 19 kept away fromlantern ring 20 all rotates and is connected withguide block 17,polylith guide block 17 all slides and set up in the inner wall of supportingseat 1, and the lateral wall ofpolylith guide block 17 all fixedly connected witharc board 6, the outer wall ofpolylith arc board 6 all laminates on the round wall of connecting rodmain part 3.
Referring to fig. 1-3, in the drawings, the positioning mechanism includes asliding groove 5, thesliding groove 5 is formed on a side wall of the supportingseat 1, thesliding groove 5 is located above thehole groove 14, twoclamping plates 4 are slidably attached to an inner portion of the slidinggroove 5, the twoclamping plates 4 are respectively attached to front and rear wall surfaces of a shaft body of the connecting rodmain body 3, a transmission member is arranged between the twoclamping plates 4 and the supportingseat 1, and a stabilizing member is arranged between oneclamping plate 4 and the connecting rodmain body 3.
Referring to fig. 3, the transmission member in the illustration includes twoU-shaped blocks 10, the twoU-shaped blocks 10 are fixedly connected to a side wall of one end of the supportingseat 1 far away from the connecting rodmain body 3, and corresponding surfaces of the twoU-shaped blocks 10 are aligned with front and rear end surfaces of the inside of the slidinggroove 5 respectively, wherein the outer wall of oneU-shaped block 10 is rotationally connected with ascrew 11, one end of thescrew 11 penetrates through the other U-shapedblock 10, the outer wall of the other U-shapedblock 10 is fixedly connected with arubber ring 13, the inner wall of therubber ring 13 is tightly attached to the outer wall of thescrew 11, the end part of thescrew 11 is fixedly connected with a second rotatingblock 12, threads on two sides of the outer wall of thescrew 11 are symmetrically arranged, and two sides of the outer wall of thescrew 11 penetrate through and are screwed in the inner walls of the twoclamping plates 4 respectively.
Referring to fig. 4, in the illustration, the limiting member includes two symmetricallong rods 15, one ends of the twolong rods 15 are fixedly connected to the edge of the inner wall of thehole 14, and the corresponding ends of the twolong rods 15 are fixedly connected with afixing ring 21, the inner wall of thefixing ring 21 is fixedly connected with arubber ring 22, and the inner wall of therubber ring 22 is tightly attached to the outer wall of thewire column 24.
Referring to fig. 4 and 5, aguide groove 16 is formed on an inner side surface of themiddle hole groove 14, aguide block 17 is slidably matched with theguide groove 16, aguide clamping groove 18 is formed on an inner wall of theguide groove 16, aguide clamping block 2 is fixedly connected to an outer wall of theguide block 17, and theguide clamping block 2 is slidably matched with theguide clamping groove 18.
In this embodiment, when the threaded hole of the connecting rodmain body 3 is processed, firstly, the rod body of the connecting rodmain body 3 passes through the twoclamping plates 4, and the large hole on the connecting rodmain body 3 passes through the plurality ofarc plates 6, finally, the connecting rodmain body 3 is attached to the side wall of the supportingseat 1, then, the staff rotates the second rotatingblock 12 to drive thescrew 11 to rotate, because the threads on two sides of the outer wall of thescrew 11 are symmetrically arranged, the twoclamping plates 4 can slide in the inside of thechute 5, when the twoclamping plates 4 are attached to the front wall and the rear wall of the rod body of the connecting rodmain body 3, at this moment, the connecting rodmain body 3 is in a vertical state, so that the subsequent lathe drill bit can normally drill the connecting rodmain body 3 from top to bottom, then, the rotatingblock 23 drives thewire column 24 to rotate, thelantern ring 20 sleeved on the outer wall of thewire column 24 can move towards the connecting rodmain body 3, thelantern ring 20 can drive the plurality of connectingplates 19 to rotate synchronously, and the plurality of connectingplates 19 can respectively drive the plurality ofguide blocks 17 to slide in the plurality ofguide grooves 16 respectively, and theguide blocks 17 can drive theguide blocks 2 to slide in theguide clamping grooves 18, and the guide blocks 6 to move away from the centers of thewire column 24, and then, the connecting rodmain body 3 can be firmly clamped by the connecting rodmain body 3 is attached to the connecting rodmain body 3, and thearc plates 3 can be firmly clamped by the two connecting rodmain bodies 3, and the connecting rodmain body 3 can be firmly shown by the twoarc plates 3; because the big hole sizes and the rod body widths of the connecting rodmain bodies 3 with different specifications are different, the moving distance can be adjusted by the plurality ofarc plates 6 according to the hole diameters of the big holes on the connecting rodmain bodies 3 and the arc plates are clung to the inner walls of the big holes, and the moving distance can be adjusted by the twoclamping plates 4 according to the rod body widths of the connecting rodmain bodies 3 and the rod bodies can be clamped, so that the connecting rodmain bodies 3 with different specifications can be firmly clamped, and convenience is brought.
It should be noted that, thefixing ring 21 is fixed inside thehole groove 14 through the twolong rods 15, and therubber ring 22 connected in thefixing ring 21 is tightly attached to the outer wall of thescrew column 24, so that thescrew column 24 can keep a certain fixed state by virtue of the friction force between thescrew column 24 and therubber ring 22 after thescrew column 24 rotates, and thescrew rod 11 can keep a certain fixed state after the screw column rotates by virtue of the friction force between therubber ring 13 and thescrew rod 11.
Example 2
Referring to fig. 2, this embodiment further illustrates example 1, in which the fixing member includes a U-shapedplate 7, the U-shapedplate 7 is fixedly connected to one end of one of theclamping plates 4, which is far away from thescrew 11, and the inner wall of the U-shapedplate 7 is threaded through and screwed with astud 9, one end of thestud 9 is tightly attached to a side surface of the shaft of the connectingrod body 3, and the other end of thestud 9 is fixedly connected with a first rotatingblock 8.
In this embodiment, after the connecting rodmain body 3 is clamped by the twoclamping plates 4, the first rotatingblock 8 is rotated at this time to drive thestud 9 to move in the shaft direction of the connecting rodmain body 3 in the inner wall of theU-shaped plate 7, and the end of thestud 9 can move to abut against the side surface of the shaft of the connecting rodmain body 3, so that the connecting rodmain body 3 is further clamped more stably.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.