Hexagonal convex rib crimping die

Abstract

The utility model discloses a hexagonal convex rib crimping die which comprises an upper die base and a lower die base which are oppositely arranged, pressing block modules are arranged in the upper die base and the lower die base, each pressing block module comprises a plurality of pressing blocks which are sequentially arranged, every two pressing block modules can be matched to define a hexagonal crimping opening, at least two convex ribs are arranged on the forming face of each pressing block, and the convex ribs are matched with the pressing blocks to form the hexagonal crimping opening. The multiple convex ribs are arranged side by side, forming grooves are defined between the adjacent convex ribs, the forming grooves in the adjacent pressing blocks are aligned, and convex rib forming cavities are defined by the corresponding forming grooves in the multiple pressing blocks. And the forming grooves of the adjacent pressing blocks are spliced to form a convex rib forming cavity, so that a convex rib can be formed in the convex rib forming cavity after the terminal is crimped. Compared with the prior art, the wire harness terminal crimping device can realize the formation of convex ribs when the wire harness terminal is crimped, and the crimped terminal is higher in strength.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness processing, in particular to a hexagonal rib crimping die. Background Art

[0002] In recent years, the wiring harness industry in my country has reached a significant level of development. Wiring harness products are not only specialized products for the automotive and home appliance industries, but also require large-scale, specialized production in fields such as electronics, instrumentation, and electromechanical equipment. In the pantograph industry, the importance of wiring harness terminals is self-evident. A pantograph is an electrical device that draws power from the catenary for electric locomotives or EMUs. It conducts current from the contact wire into the locomotive's interior to supply the traction motor. In this process, wiring harness terminals play a crucial role as key components connecting the pantograph to the locomotive's internal circuitry.

[0003] At present, the Chinese patent with publication number CN107959208A discloses an open hexagonal replacement-free mold, including an upper mold base and a lower mold base arranged relatively to each other, and the two mold bases are sequentially provided with a first cutting die, a second cutting die, and a third cutting die, wherein the third cutting die is fixed, and the first cutting die and the second cutting die are both slidably set in the sliding groove of the corresponding mold base by springs, and the cutting dies on the two mold bases are sequentially abutted and enclosed to form a hexagonal processing opening.

[0004] However, the hexagonal crimping die in the above patent can only realize the crimping operation of terminals with smooth surfaces, but cannot crimp terminals with ribs and higher strength. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a hexagonal rib crimping die.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A hexagonal rib crimping die comprises an upper die base and a lower die base arranged relatively to each other, wherein a pressure block module is provided in each of the upper die base and the lower die base, wherein the pressure block module comprises a plurality of pressure blocks arranged in sequence, and two of the pressure block modules cooperate to enclose a hexagonal crimping interface, and at least two ribs are provided on the forming surface of the pressure block, and the plurality of ribs are arranged side by side, and forming grooves are defined between adjacent ribs, and the forming grooves on adjacent pressure blocks are aligned, and the corresponding forming grooves on the plurality of pressure blocks enclose a rib forming cavity.

[0008] Preferably, a guide column is provided on the lower die base, and a guide hole is provided through the upper die base, and the guide column is adapted to fit in the guide hole.

[0009] Preferably, a die handle is provided on the end surface of the upper die base.

[0010] Preferably, a positioning rod is elastically provided on the lower die base, and the positioning rod is aligned with the hexagonal crimping hole.

[0011] Preferably, a positioning bracket is provided on the lower mold base, the positioning rod is slidably adapted to the positioning bracket, a flange is provided at the end of the positioning rod, and a first spring is also sleeved on the positioning rod, one end of the first spring abuts against the flange, and the other end abuts against the positioning bracket.

[0012] Preferably, a mounting groove is provided on the pressure block, and several of the convex ribs are fitted in the mounting groove, and a second spring is connected to the convex ribs. When the second spring maintains a natural state, several of the convex ribs are flush with each other, and a locking piece for fixing the relative position of the convex ribs is also provided on the pressure block.

[0013] Preferably, at least two locking holes are sequentially formed on the convex rib along the depth direction of the mounting groove, and the locking member includes a locking rod passing through the mounting groove, and the locking rod can be inserted into the locking hole.

[0014] The beneficial effect of the present invention is that the forming grooves of adjacent pressing blocks are combined to form a rib forming cavity, so that a rib can be formed in the rib forming cavity after the terminal is crimped. Compared with the existing technology, the present invention can realize the formation of ribs during crimping of the wiring harness terminal, and the crimped terminal has higher strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment;

[0016] Figure 2 It is a structural diagram of the briquette;

[0017] Figure 3 Schematic diagram of the structure of the positioning rod;

[0018] Figure 4 A schematic diagram of the structure of the installation slot.

[0019] Figure numerals: 1. Upper die base; 2. Lower die base; 3. Pressing block module; 4. Pressing block; 5. Hexagonal pressing joint; 6. Raised rib; 7. Forming groove; 8. Guide column; 9. Guide hole; 10. Die handle; 11. Positioning rod; 12. Positioning bracket; 13. Flange; 14. Mounting groove; 15. Locking piece; 16. Locking hole; 17. Locking rod. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, a hexagonal rib crimping die comprises an upper die base 1 and a lower die base 2 positioned opposite each other. Each die base houses a compression block 4 module 3, each compression block 4 module 3 comprising a plurality of compression blocks 4 arranged in sequence. For example, Chinese Patent Publication No. CN107959208A discloses a specific arrangement of the plurality of compression blocks 4 within each compression block 4 module 3, which is incorporated herein by reference. As can be seen, when the die is closed, the two compression block 4 modules 3 cooperate to form a hexagonal crimping port 5 for crimping the terminal.

[0022] At least two convex ribs 6 are provided on the forming surface of the pressing block 4 , that is, on the side surface of the pressing block 4 used to form the hexagonal pressing joint 5 . Figure 2 The preferred example in the figure shows three ribs 6 arranged side by side. It can be seen that forming grooves 7 are defined between adjacent ribs 6, and the forming grooves 7 on adjacent pressing blocks 4 are aligned. Alternatively, the forming grooves 7 on adjacent pressing blocks 4 are interconnected. When the two pressing blocks 4 are molded together, the corresponding forming grooves 7 enclose a rib forming cavity. When the terminal is crimped through the mold, since the terminal is made of copper, for example, and has ductility, it will be squeezed into the rib forming cavity, forming a rib structure that increases the terminal strength.

[0023] In some embodiments, the ribs 6 are detachably connected to the pressing block 4. For example, the ribs 6 can be connected to the pressing block 4 via a key and secured with fasteners such as bolts (not shown). By replacing ribs 6 with different widths, the mold can be used to crimp ribs of varying widths onto the terminal, further enhancing the mold's applicability.

[0024] like Figure 4As shown, as another embodiment, the pressing block 4 is provided with a mounting groove 14, and the ribs 6 are plate-shaped. Several ribs 6 are sequentially positioned within the mounting groove 14, and a second spring is connected to the ribs 6. When the second spring is in its natural state, the ribs 6 are pushed out to the same position under the action of elastic force, that is, they are aligned. At this point, the ribs 6 form a flat forming surface suitable for terminal crimping without ribs. The pressing block 4 is also provided with a locking member 15 for fixing the relative positions of the ribs 6. The locking member 15 can, for example, maintain the ribs 6 in the aforementioned flat forming surface. More importantly, after different ribs 6 are pressed to different relative positions, the locking member 15 secures them, thereby forming the aforementioned forming groove 7 between adjacent, more prominent ribs 6. The width of the forming groove 7 can be varied by pressing different numbers of ribs 6 between adjacent, more prominent ribs 6.

[0025] For example, at least two locking holes 16 are formed on the rib 6 along the depth of the mounting groove 14, and the locking member 15 includes a locking rod 17 extending through the mounting groove 14. For ease of description, this example illustrates two cases of locking holes 16, which are respectively defined as locking hole 16 1 and locking hole 16 2.

[0026] When the pressing block 4 needs a forming groove 7 to press the rib, the corresponding rib 6 can be pressed so that the locking hole 16 1 on it is aligned with the locking hole 16 2 of the adjacent rib 6, and then the locking rod 17 is inserted into the locking hole 16 1 and the locking hole 16 2 at the same time to fix the ribs 6 in two different position states.

[0027] In some embodiments, guide posts 8 are provided on the lower die base 2, and corresponding guide holes 9 are provided on the upper die base 1. The guide posts 8 and guide holes 9 are adapted to guide the closing of the mold, making the closing process smoother and more reliable. The upper die base 1 is provided with a die handle 10 for connecting to the press.

[0028] like Figure 3 As shown, the lower die base 2 is also provided with a positioning bracket 12, and a positioning rod 11 is slidably provided on the positioning bracket 12 toward one side of the hexagonal crimping hole. The positioning rod 11 is in a relative position to the hexagonal crimping hole. Specifically, a flange 13 is provided at the end of the positioning rod 11, and a first spring is also sleeved on the positioning rod 11. One end of the first spring abuts against the flange 13, and the other end abuts against the positioning bracket 12, allowing the positioning rod 11 to be elastic relative to the positioning bracket 12. When crimping the terminal, the terminal can be placed into the hexagonal crimping port 5 and abutted against the positioning rod 11 for positioning, which increases the reliability of the mold crimping of the terminal.

[0029] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A hexagonal rib crimping die, comprising an upper die base (1) and a lower die base (2) arranged opposite to each other, wherein a pressing block module (3) is provided in each of the upper die base (1) and the lower die base (2), wherein the pressing block module (3) comprises a plurality of pressing blocks (4) arranged in sequence, and two of the pressing blocks (4) and the module (3) cooperate to enclose and form a hexagonal pressing interface (5), wherein the hexagonal rib crimping die is characterized in that: At least two convex ribs (6) are provided on the forming surface of the pressing block (4), and a plurality of the convex ribs (6) are arranged side by side. A forming groove (7) is defined between adjacent convex ribs (6). The forming grooves (7) on adjacent pressing blocks (4) are aligned, and the corresponding forming grooves (7) on a plurality of pressing blocks (4) enclose a convex rib forming cavity.

2. The hexagonal rib crimping die according to claim 1, characterized in that: A guide column (8) is provided on the lower die base (2), a guide hole (9) is provided through the upper die base (1), and the guide column (8) is adapted to fit in the guide hole (9).

3. The hexagonal rib crimping die according to claim 1, wherein: A die handle (10) is provided on the end surface of the upper die base (1).

4. The hexagonal rib crimping die according to claim 1, wherein: A positioning rod (11) is also elastically provided on the lower die base (2), and the positioning rod (11) is aligned with the hexagonal pressing interface (5).

5. The hexagonal rib crimping die according to claim 4, characterized in that: A positioning bracket (12) is provided on the lower die base (2), the positioning rod (11) is slidably adapted to the positioning bracket (12), a flange (13) is provided at the end of the positioning rod (11), and a first spring is also sleeved on the positioning rod (11), one end of the first spring abuts against the flange (13), and the other end abuts against the positioning bracket (12).

6. The hexagonal rib crimping die according to any one of claims 1 to 5, characterized in that: The pressing block (4) is provided with a mounting groove (14), and a plurality of the convex ribs (6) are fitted in the mounting groove (14). The convex ribs (6) are also connected to a second spring. When the second spring is kept in a natural state, the plurality of the convex ribs (6) are flush with each other. The pressing block (4) is also provided with a locking piece (15) for fixing the relative positions of the convex ribs (6).

7. The hexagonal rib crimping die according to claim 6, wherein: At least two locking holes (16) are sequentially formed on the convex rib (6) along the groove depth direction of the installation groove (14); the locking member (15) includes a locking rod (17) that passes through the installation groove (14), and the locking rod (17) can be inserted into the locking hole (16).

Images