A carbon brush copper wire pressure terminal mechanism

Abstract

The application discloses a carbon brush copper wire pressure terminal mechanism, which comprises a lower die mounting seat, the top of which is provided with a pressure terminal lower die, the top of the pressure terminal lower die is provided with a forming groove for accommodating the copper wire end and the terminal, guide rods are slidably arranged in the sliding grooves on the opposite sides of the groove, and the top ends of the two guide rods are connected with a pressure terminal upper die. The pressure terminal upper die is provided with a terminal stamping head at the position corresponding to the forming groove, and the top end of the terminal stamping head is connected with a stamping driving assembly to drive the terminal stamping head to ascend and descend. The copper wire and the terminal are positioned by the forming groove, the terminal stamping head is driven by the stamping driving assembly to uniformly and firmly press the terminal on the copper wire end, the copper wire loose end is effectively prevented, and a regular and compact connection structure is formed. The mechanism replaces traditional manual operation, can quickly and in batches complete the carbon brush copper wire end processing, significantly improves the assembly efficiency and guarantees the consistency of the press connection quality.

Description

Technical Field

[0001] This application relates to the technical field of carbon brush copper wire manufacturing equipment, and more specifically, it relates to a carbon brush copper wire crimping terminal mechanism. Background Technology

[0002] In the manufacturing process of current collectors, the copper wire of the carbon brush is usually fixed by directly inserting the copper wire into the current collector's mounting hole and then tightening it with screws. This method has the following problems: the copper wire length needs to be manually cut, making it difficult to ensure consistency; the copper wire ends are prone to fraying, leading to installation difficulties; and the copper wire is prone to displacement when tightened with screws, affecting the reliability of the connection and assembly efficiency. These problems not only increase the complexity of the operation but also make it difficult to guarantee the quality of the electrical connection between the carbon brush and the current collector, potentially leading to poor contact, overheating, and other potential problems during long-term use.

[0003] Therefore, it is necessary to provide a dedicated mechanism that can quickly and accurately press the copper wire ends of carbon brushes into shape, facilitating subsequent installation, in order to improve assembly quality and efficiency. Utility Model Content

[0004] To address the issue that directly inserting copper wire into the current collector fixing hole and then tightening it with screws affects the reliability of the connection and assembly efficiency when connecting the current collector to the carbon brush copper wire, this application provides a carbon brush copper wire crimping terminal mechanism.

[0005] A carbon brush copper wire crimping terminal mechanism includes a lower mold mounting base. A crimping lower mold is provided on the top of the lower mold mounting base. A forming groove is provided on the top of the crimping lower mold. The forming groove is used to accommodate the end of the copper wire and the terminal sleeved on the end of the copper wire. The crimping lower mold has sliding grooves on both sides of the forming groove. Guide rods are slidably provided in both sliding grooves of the crimping lower mold. The tops of the two guide rods are connected to the crimping upper mold. A terminal punching head is provided on the crimping upper mold at the position corresponding to the forming groove. A punching drive assembly is connected to the top of the crimping upper mold. The punching drive assembly is used to drive the crimping upper mold to rise and fall.

[0006] Preferably, the top of the lower die of the crimping terminal is further provided with a copper wire receiving groove, one end of which is connected to the forming groove, and the other end of which extends through the side of the lower die of the crimping terminal.

[0007] Preferably, the lower mold mounting base is connected to a carbon brush positioning block. The carbon brush positioning block is located on one side where the copper wire receiving groove passes through the lower mold of the crimp terminal, and the top of the carbon brush positioning block is recessed with a positioning groove, which matches the shape and size of the carbon brush for positioning the carbon brush.

[0008] Preferably, the top surface height of the carbon brush positioning block is lower than the top surface height of the lower mold of the pressure terminal.

[0009] Preferably, the stamping drive assembly includes a hydraulic cylinder, a connecting rod, and an upper die clamping seat. The upper die clamping seat is connected to the top of the upper die of the pressing terminal. One end of the connecting rod is connected to the top of the upper die clamping seat, and the other end of the connecting rod is connected and fixed to the drive shaft of the hydraulic cylinder.

[0010] This application includes at least one of the following beneficial technical effects:

[0011] 1. A forming groove is used to precisely position and constrain the copper wire ends and terminals. Under the action of the stamping drive assembly, the terminal stamping head evenly and firmly presses the terminals onto the copper wire. This process effectively prevents the copper wire ends from spreading, forming a neat and tight connection structure. After the terminals are formed, holes are drilled, and then the terminals are directly inserted into the current collector fixing holes. Finally, screws are passed through the holes on the terminals to press them tightly, thus achieving the connection between the carbon brush copper wire and the current collector. This method replaces the tedious steps of traditional manual cutting, sorting, and screw fixing, enabling rapid and batch processing of the carbon brush copper wire ends. This prevents the copper wires from spreading during installation, greatly improving assembly efficiency and ensuring the consistency of the crimping quality for each product.

[0012] 2. By setting up carbon brush positioning blocks and their positioning grooves, the carbon brush body can be reliably fixed in the working position. At the same time, the copper wire receiving groove that cooperates with the carbon brush positioning blocks not only guides the copper wire, but also indirectly limits the effective length of the copper wire, avoiding the impact on the crimping quality due to the displacement of the carbon brush or copper wire during the crimping process, and ensuring the one-time forming qualification rate of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a carbon brush copper wire crimping terminal mechanism according to this embodiment.

[0014] Reference numerals: 1. Lower mold mounting base; 2. Lower mold for crimping terminals; 21. Forming groove; 22. Slide groove; 23. Copper wire receiving groove; 3. Guide rod; 4. Upper mold for crimping terminals; 41. Terminal punching head; 5. Punching drive assembly; 51. Hydraulic cylinder; 52. Connecting rod; 53. Upper mold clamping seat; 6. Carbon brush positioning block; 61. Positioning groove. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Reference Figure 1 A carbon brush copper wire crimping terminal mechanism includes a lower mold mounting base 1, on the top of which a crimping terminal lower mold 2 is detachably mounted by bolts. This connection method facilitates quick replacement of the corresponding lower mold according to the carbon brush model or terminal size. A rectangular forming groove 21 is machined on the top of the crimping terminal lower mold 2. This forming groove 21 is used to precisely accommodate the end of the copper wire to be crimped and the terminal sleeved on the copper wire. On opposite sides of the forming groove 21, a sliding groove 22 is formed on the crimping terminal lower mold 2. A guide rod 3 is slidably installed in each sliding groove 22, and the tops of the two guide rods 3 are connected to the crimping terminal upper mold 4. A terminal punching head 41 is fixed at the bottom of the crimping terminal upper mold 4, directly opposite the forming groove 21. The size and contour of its punching part precisely match the rectangular forming groove 21 below, ensuring that the stamped terminal and copper wire can form a regular rectangular flat plate structure.

[0017] Reference Figure 1 The top of the die 4 for the pressing terminal is connected to a stamping drive assembly 5, which includes a hydraulic cylinder 51, a connecting rod 52, and an upper die clamping seat 53. The upper die clamping seat 53 is detachably connected to the top of the die 4 for the pressing terminal by bolts. This design allows for quick replacement of the upper die to adapt to different processing requirements. One end of the connecting rod 52 is fixed to the top of the upper die clamping seat 53, and the other end is connected to the drive shaft of the hydraulic cylinder 51. The hydraulic cylinder 51 is connected to an external support frame for support. When the hydraulic cylinder 51 is activated, it can drive the die 4 for the pressing terminal to make precise lifting and lowering movements along the guide rod 3.

[0018] Reference Figure 1To further optimize the process, a copper wire receiving groove 23 is also provided on the top of the crimping terminal lower mold 2. One end of this copper wire receiving groove 23 is connected to the forming groove 21, and the other end extends through to the side of the crimping terminal lower mold 2, used to accommodate and guide the copper wire drawn out by the carbon brush during the crimping process. On the lower mold mounting base 1 located on the outlet side of the copper wire receiving groove 23, a carbon brush positioning block 6 is detachably installed by bolts. The top surface of the positioning block is slightly lower than the top surface of the crimping terminal lower mold 2 to ensure that the copper wire drawn out by the carbon brush can be smoothly placed into the copper wire receiving groove 23 and extend into the forming groove 21 after the carbon brush is installed. The top of the carbon brush positioning block 6 is recessed with a positioning groove 61 that matches the outer dimensions of the carbon brush, which can reliably fix the carbon brush body. Its cooperation with the copper wire receiving groove 23 also indirectly limits the effective length of the copper wire participating in the crimping, preventing the quality from being affected by the displacement of the carbon brush or copper wire during the crimping process.

[0019] The implementation principle of the carbon brush copper wire crimping terminal mechanism in this embodiment is as follows: First, the carbon brush is stably placed in the positioning groove 61 of the carbon brush positioning block 6, so that its copper wire is laid along the copper wire receiving groove 23, and the end and the sleeved terminal are placed together into the forming groove 21 of the crimping terminal lower mold 2. The stamping drive assembly 5 is started, and the hydraulic cylinder 51 pushes the crimping terminal upper mold 4 downward through the connecting rod 52. Under the precise guidance of the guide rod 3, the terminal stamping head 41 evenly and firmly crimps the terminal onto the end of the copper wire, forming a regular rectangular flat plate connector. This process effectively prevents the copper wire end from spreading, ensuring the tightness and consistency of the connection. After crimping, the terminal can be drilled, and then directly inserted into the current collector fixing hole. The connection is completed by pressing with a screw through the terminal hole.

[0020] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon brush copper wire crimping terminal mechanism, characterized in that: The device includes a lower mold mounting base (1), on the top of which is a terminal pressing lower mold (2). The top of the terminal pressing lower mold (2) is provided with a forming groove (21). The forming groove (21) is used to accommodate the end of the copper wire and the terminal sleeved on the end of the copper wire. The terminal pressing lower mold (2) is provided with sliding grooves (22) on both sides of the forming groove (21). Guide rods (3) are slidably provided in both sliding grooves (22) of the terminal pressing lower mold (2). The tops of the two guide rods (3) are connected to the terminal pressing upper mold (4). The terminal pressing upper mold (4) is provided with a terminal punching head (41) corresponding to the position of the forming groove (21). The top of the terminal pressing upper mold (4) is connected to a stamping drive assembly (5). The stamping drive assembly (5) is used to drive the terminal pressing upper mold (4) to rise and fall.

2. The carbon brush copper wire crimping terminal mechanism according to claim 1, characterized in that: The top of the crimping terminal mold (2) is also provided with a copper wire receiving groove (23). One end of the copper wire receiving groove (23) is connected to the forming groove (21), and the other end of the copper wire receiving groove (23) passes through the side of the crimping terminal mold (2).

3. The carbon brush copper wire crimping terminal mechanism according to claim 2, characterized in that: The lower mold mounting base (1) is connected to a carbon brush positioning block (6). The carbon brush positioning block (6) is located on one side of the copper wire receiving groove (23) that passes through the lower mold (2) of the crimp terminal. The top of the carbon brush positioning block (6) is recessed with a positioning groove (61). The positioning groove (61) matches the shape and size of the carbon brush for positioning the carbon brush.

4. The carbon brush copper wire crimping terminal mechanism according to claim 3, characterized in that: The top surface height of the carbon brush positioning block (6) is lower than the top surface height of the pressure terminal lower mold (2).

5. The carbon brush copper wire crimping terminal mechanism according to claim 1, characterized in that: The stamping drive assembly (5) includes a hydraulic cylinder (51), a connecting rod (52), and an upper die clamping seat (53). The upper die clamping seat (53) is connected to the top of the upper die (4) of the pressing terminal. One end of the connecting rod (52) is connected to the top of the upper die clamping seat (53), and the other end of the connecting rod (52) is connected and fixed to the drive shaft of the hydraulic cylinder (51).

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