A hexagonal crimping die without die change

Abstract

The present application provides a hexagonal crimping die that does not require die change. Six linear slides are arranged on one side of the die base. A ram is installed in each linear slide. The six rams cooperate to form a hexagonal cavity. The ram is driven to move in the linear slide by an annular cam. The ram includes a ram body and a pin. The ram body and the pin are hinged. The ram can rotate around the pin during the movement to adapt to changes in position. When the ram is in different positions, the size of the cavity surrounded by the six rams is different, which can meet the use requirements of wires with different wire diameters without changing the mold. The present application can greatly reduce the dead weight of the box-type prefabricated wall monomer and reduce the difficulty of transportation and installation. The present application can adapt to the use requirements of wires with different wire diameters without changing the mold.

Description

Technical Field

[0001] The present application belongs to the technical field of wire material processing, and specifically relates to a hexagonal crimping die that does not require die change. Background Art

[0002] In the production of new energy high-voltage wire harnesses, crimping is a key process, and the quality of crimping is related to the safety of vehicle driving. In the crimping process, hexagonal crimping is a more common crimping form, and the process of hexagonal crimping is achieved through the corresponding hexagonal crimping die.

[0003] In the related art, the hexagonal crimping die includes an upper die and a lower die that are relatively arranged, and the upper die and the lower die cooperate to form a hexagonal cavity, and the upper die and the lower die move toward each other to achieve the crimping effect. This type of die has a simple structure and is easy to use, but the size of the die cavity is fixed and can only be used for wires of a specific wire diameter. When crimping wires of different wire diameters, the die needs to be replaced to change the size of the cavity, and the applicability is low.

[0004] Therefore, it is necessary to provide a hexagonal crimping die that does not require die change to solve the problems raised in the above background technology. Summary of the invention

[0005] The present application provides a hexagonal crimping die without die change, which has six pressing heads cooperating with a hexagonal cavity, and the pressing heads are driven by an annular cam to move. The size of the cavity can be changed by changing the position of the pressing heads, so as to meet the use requirements of wires with different wire diameters without the need to change the die.

[0006] In order to solve the above technical problems, the technical solution of this application is:

[0007] A die-changing free hexagonal crimping die comprises an annular die, a pressing head and a driving assembly, wherein the annular die comprises a die base, a cover plate, an annular cam and a connecting rod, wherein the die base cooperates with the cover plate to clamp the annular cam, six linear slide grooves are arranged on one side of the die base, the linear slide grooves are arranged obliquely relative to the vertical direction, and the six linear slide grooves are distributed in an annular array along the central axis of the die base, the pressing head is installed on the inner ring side of the annular cam, the number of the pressing heads is six, and the six pressing heads are distributed in an annular array around the central axis of the annular cam, each of the pressing heads comprises a pressing head body and a pin shaft, one end of the pin shaft is installed in the linear slide groove, and the other end is hinged to the middle position of the pressing head body, the pressing head body can rotate around the pin shaft, the connecting rod is fixed to the annular cam and is arranged along the axial direction of the annular cam, the driving assembly is used to drive the connecting rod to move, drive the annular cam to rotate, make the annular cam squeeze the pressing head, drive the pressing head to move, and the six pressing heads press the wire to form a hexagonal end.

[0008] Preferably, a circular boss is protruded from one side of the mold base, the cover plate is parallel to and spaced from the circular boss and the two are fixed, and are used to clamp the pressure head, the linear slide groove is arranged on the side of the circular boss close to the cover plate, and the annular cam is sleeved on the outer periphery of the circular boss and can rotate around the circular boss.

[0009] Preferably, the ram body includes a first end and a second end that are relatively arranged, and the first ends of the six ram bodies are all facing the inner ring side of the annular cam, and the second ends of the six ram bodies are sequentially abutted to form a hexagonal cavity, and the end of the wire to be formed is placed in the cavity, and a travel groove is provided on the inner ring side of the annular cam corresponding to the position of the second end of each ram body, and the second end of the ram body abuts the bottom of the travel groove, and the extension direction of the travel groove is consistent with the stroke of the second end of the ram body, and the rotation of the annular cam drives the bottom of the travel groove to squeeze the ram, thereby driving the ram to move.

[0010] Preferably, the second end of each of the pressure head bodies includes a first side edge and a second side edge, the angle between the first side edge and the second side edge is 60°, and among two adjacent pressure head bodies, the first side edge of one pressure head body abuts against the second side edge of the other pressure head body.

[0011] Preferably, the mounting bracket includes a horizontal plate and a vertical plate, the horizontal plate is arranged in the horizontal direction, the vertical plate is arranged in the vertical direction, the vertical plate is fixed to the horizontal plate, and the mold base is fixed to the vertical plate.

[0012] Preferably, the driving assembly includes a mold handle, a hitting rod and a guide bar. The mold handle is connected to a press, and the press provides pressure input. The hitting rod is connected to the mold handle and is driven by the mold handle to generate linear motion. Both ends of the connecting rod are exposed outside the annular cam, and the hitting rod cooperates with the connecting rod to drive the connecting rod to move.

[0013] Preferably, a first through hole is penetrated through the position of the cover plate corresponding to the cavity, a second through hole is penetrated through the position of the mold base corresponding to the cavity, and a third through hole is penetrated through the position of the vertical plate corresponding to the cavity. The first through hole, the cavity, the second through hole and the third through hole are connected in sequence.

[0014] Preferably, it also includes a positioning assembly, which includes a first plate body, a second plate body and a third plate body, the first plate body is fixed to the side of the vertical plate away from the annular die, the third plate body is parallel and spaced apart from the first plate body, the second plate body connects the first plate body and the third plate body, the third plate body is arranged opposite to the third through hole, the wire passes through the first through hole, the cavity, the second through hole and the third through hole in sequence, and abuts the third plate body.

[0015] The beneficial effects of this application are:

[0016] Six linear slides are arranged on one side of the die base, and a pressing head is installed in each linear slide. The six pressing heads cooperate to form a hexagonal cavity, and the pressing head is driven to move in the linear slide by an annular cam. The pressing head includes a pressing head body and a pin shaft, and the pressing head body and the pin shaft are hinged. The pressing head can rotate around the pin shaft during the movement to adapt to the change of position. When the pressing head is in different positions, the size of the cavity surrounded by the six pressing heads is different, which can meet the use requirements of wires with different wire diameters without changing the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing the structure of a hexagonal crimping die without die change provided by the present application;

[0018] Figure 2 express Figure 1 The schematic diagram of the exploded structure of the hexagonal crimping die without die change is shown;

[0019] Figure 3 express Figure 2 A schematic diagram of the structure of the pressure head assembly shown;

[0020] Figure 4 express Figure 1 The front view of the die-changing-free hexagonal crimping die after removing the cover plate;

[0021] Figure 5 express Figure 1 A cross-sectional view of a hexagonal crimping die without die change is shown. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Please refer to Figure 1-Figure 5 The present application provides a hexagonal crimping die 100 that does not require die change, including a mounting bracket 10, an annular die 20, a pressing head 30, a driving assembly 40 and a positioning assembly 50.

[0024] The mounting bracket 10 includes a transverse plate 11 and a vertical plate 12 . The transverse plate 11 is arranged in a horizontal direction, and the vertical plate 12 is arranged in a vertical direction. The vertical plate 12 is fixed to the transverse plate 11 .

[0025] The annular die 20 includes a die base 21 , a cover plate 22 , an annular cam 23 and a connecting rod 24 .

[0026] The mold base 21 is fixed to the vertical plate 12 , and a circular boss 211 is formed on one side of the mold base 21 . The circular boss 211 faces the cover plate 22 . The cover plate 22 is parallel to the circular boss 211 and is fixed to clamp the pressure head 30 .

[0027] One side of the annular boss 211 close to the cover plate 22 is recessed to form six linear slide grooves 2110 . The linear slide grooves 2110 are inclined relative to the vertical direction. The six linear slide grooves 2110 are distributed in a ring array along the central axis of the mold base 21 .

[0028] The annular cam 23 is sandwiched between the die base 21 and the cover plate 22 , and is sleeved around the outer periphery of the annular boss 211 . The annular boss 211 provides a guide and a limit function, so that the annular cam 23 can rotate around the annular boss 211 .

[0029] The connecting rod 24 is fixed to the annular cam 23 and is arranged along the axial direction of the annular cam 23. Both ends of the connecting rod 24 are exposed outside the annular cam 23.

[0030] The pressing head 30 is installed on the inner ring side of the annular cam 23 . There are six pressing heads 30 , and the six pressing heads 30 are distributed in an annular array around the central axis of the annular cam 23 .

[0031] Each of the pressing heads 30 includes a pressing head body 31 and a pin shaft 32 . One end of the pin shaft 32 is installed in the linear slide groove 2110 , and the other end is hinged to the middle position of the pressing head body 31 . The pressing head body 31 can rotate around the pin shaft 32 .

[0032] The ram body 31 includes a first end 311 and a second end 312 that are relatively arranged. The first ends 311 of the six ram bodies 31 are all facing the inner ring side of the annular cam 23. The second ends 312 of the six ram bodies 31 are sequentially abutted to form a hexagonal cavity 33. The end of the wire to be formed is placed in the cavity 33 and is pressed by the six rams 30 to form a hexagonal end.

[0033] Specifically, the second end 312 of each of the pressing head bodies 31 includes a first side edge 3121 and a second side edge 3122, and the angle between the first side edge 3121 and the second side edge 3122 is 60°. In two adjacent pressing head bodies 31, the first side edge of one pressing head body abuts against the second side edge of the other pressing head body.

[0034] A travel groove 230 is provided on the inner ring side of the annular cam 23 at the position corresponding to the second end 312 of each of the ram bodies 31. The second end of the ram body abuts against the bottom of the travel groove 230. The extension direction of the travel groove 230 is consistent with the travel of the second end 312 of the ram body 31. When the annular cam 23 rotates, a force is applied to the second end 312 of the ram body 31 through the bottom of the travel groove 230, so that the second end 312 of the ram body 31 moves along the travel groove 230, driving the pin 32 to move linearly in the linear slide 220. At the same time, the ram body 31 rotates around the pin 32 to adapt to the change in the position of the ram body 31.

[0035] When the plurality of pressing head bodies 31 move, the opening of the cavity 33 changes accordingly. When the opening becomes larger, it is used to put in the wire, and when the opening becomes smaller, it is used to press the wire to form a hexagonal end. The opening size of the cavity 33 is different, and can be used to press wires of different wire diameters without changing the mold. The opening size of the cavity 33 is determined by the stroke of the press.

[0036] The driving assembly 40 includes a mold handle 41 , a driving rod 42 , and a guide bar 43 .

[0037] The die handle 41 is connected to a press machine, and the press machine provides pressure input.

[0038] The hitting rod 42 is connected to the mold handle 41 and is driven by the mold handle 41 to produce linear motion. The hitting rod 41 cooperates with the connecting rod 24 to drive the connecting rod 24 to move, drive the annular cam 23 to rotate, and thus achieve the above-mentioned pressing effect.

[0039] It is understandable that in order to allow the end of the wire to smoothly penetrate into the cavity 33 , the position of the cover plate 22 corresponding to the cavity 33 needs to be penetrated by a first through hole 220 .

[0040] The mold base 21 is further provided with a second through hole 210 at a position corresponding to the mold cavity 33, and the vertical plate 12 is further provided with a third through hole 120 at a position corresponding to the mold cavity 33. The first through hole 220, the mold cavity 33, the second through hole 210 and the third through hole 120 are connected in sequence.

[0041] The positioning assembly 50 is an L-shaped angle plate, including a first plate 51, a second plate 55 and a third plate 53. The first plate 51 and the vertical plate 12 are fixed away from the annular die 20. The third plate 53 is parallel to and spaced from the first plate 51. The second plate 52 connects the first plate 51 and the third plate 53. The third plate 53 is arranged opposite to the third through hole 120. The wire passes through the first through hole 220, the cavity 33, the second through hole 210 and the third through hole 120 in sequence and abuts against the third plate 53. The third plate 53 is arranged to control the insertion length of the wire. By adjusting the length of the second plate 55, the requirements for crimping terminals of different lengths can be met.

[0042] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hexagonal crimping die without die change, characterized in that: The invention comprises an annular pressing die, a pressing head and a driving assembly, wherein the annular pressing die comprises a die base, a cover plate, an annular cam and a connecting rod, the die base cooperates with the cover plate to clamp the annular cam, six linear slide grooves are arranged on one side of the die base, the linear slide grooves are arranged obliquely relative to the vertical direction, the six linear slide grooves are distributed in an annular array along the central axis of the die base, the pressing head is installed on the inner ring side of the annular cam, the number of the pressing heads is six, and the six pressing heads are distributed in an annular array around the central axis of the annular cam, each of the pressing heads comprises a pressing head body and a pin shaft, one end of the pin shaft is installed in the linear slide groove, and the other end is hinged to the middle position of the pressing head body, the pressing head body can rotate around the pin shaft, the connecting rod is fixed to the annular cam and is arranged along the axial direction of the annular cam, the driving assembly is used to drive the connecting rod to move, drive the annular cam to rotate, make the annular cam squeeze the pressing head, drive the pressing head to move, and the six pressing heads press the wire to form a hexagonal end.

2. The hexagonal crimping die without die change according to claim 1, characterized in that: A circular boss is protruded from one side of the mold base, and the cover plate is parallel to and spaced from the circular boss and fixed to clamp the pressure head. The linear slide groove is arranged on a side of the circular boss close to the cover plate, and the annular cam is sleeved on the outer periphery of the circular boss and can rotate around the circular boss.

3. The hexagonal crimping die without die change according to claim 1, characterized in that: The ram body includes a first end and a second end that are relatively arranged, and the first ends of the six ram bodies are all facing the inner ring side of the annular cam. The second ends of the six ram bodies are sequentially abutted to form a hexagonal cavity, and the end of the wire to be formed is placed in the cavity. The inner ring side of the annular cam is provided with a travel groove corresponding to the position of the second end of each ram body, and the second end of the ram body abuts the bottom of the travel groove, and the extension direction of the travel groove is consistent with the stroke of the second end of the ram body. The rotation of the annular cam drives the bottom of the travel groove to squeeze the ram, thereby driving the ram to move.

4. The hexagonal crimping die without die change according to claim 3, characterized in that: The second end of each of the pressure head bodies includes a first side edge and a second side edge, the angle between the first side edge and the second side edge is 60°, and in two adjacent pressure head bodies, the first side edge of one pressure head body abuts against the second side edge of the other pressure head body.

5. The hexagonal crimping die without die change according to claim 4, characterized in that: The mold-changing-free hexagonal crimping mold also includes a mounting bracket, which includes a horizontal plate and a vertical plate. The horizontal plate is arranged in the horizontal direction, and the vertical plate is arranged in the vertical direction. The vertical plate is fixed to the horizontal plate, and the mold base is fixed to the vertical plate.

6. The hexagonal crimping die without die change according to claim 1, characterized in that: The driving assembly includes a mold handle, a hitting rod and a guide bar. The mold handle is connected to a press, and the press provides pressure input. The hitting rod is connected to the mold handle and is driven by the mold handle to generate linear motion. Both ends of the connecting rod are exposed outside the annular cam, and the hitting rod cooperates with the connecting rod to drive the connecting rod to move.

7. The hexagonal crimping die without die change according to claim 5, characterized in that: A first through hole is penetrated through the position of the cover plate corresponding to the cavity, a second through hole is penetrated through the position of the mold base corresponding to the cavity, and a third through hole is also penetrated through the position of the vertical plate corresponding to the cavity. The first through hole, the cavity, the second through hole and the third through hole are connected in sequence.

8. The hexagonal crimping die without die change according to claim 7, characterized in that: It also includes a positioning assembly, which includes a first plate body, a second plate body and a third plate body. The first plate body is fixed to the side of the vertical plate away from the annular die, the third plate body is parallel and spaced apart from the first plate body, the second plate body connects the first plate body and the third plate body, the third plate body is arranged opposite to the third through hole, and the wire passes through the first through hole, the cavity, the second through hole and the third through hole in sequence, and abuts the third plate body.

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