Manual crimping machine for automobile wire harness terminal

Abstract

The utility model relates to the technical field of manual crimping machines, in particular to a manual crimping machine for an automobile wire harness terminal. The device comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a mounting rod, a lower die and a terminal guide plate, the arc surface of the mounting rod is fixedly connected with a mounting table, a pressing rod is inserted in the upper end of the mounting table in a sliding mode, and the right end of the mounting table is provided with a handle used for controlling the pressing rod to press downwards. A pressing knife is arranged at the lower end of the pressing rod, a replacement assembly is arranged between the pressing rod and the pressing knife, the replacement assembly comprises insertion blocks which are inserted into the two sides of the inner wall of the pressing rod in a sliding mode, and the insertion blocks are inserted into the pressing knife. When the replacement assembly is arranged, when the pressing knife is replaced, the insertion blocks are retracted into the pressing rod through a driving mechanism, and then the pressing knife is dragged to be separated from the pressing rod; and then a new pressing cutter is inserted into the pressing rod, and then the inserting block is inserted into the pressing cutter to be fixed through the driving mechanism again, so that the pressing cutter is conveniently replaced as much as possible.

Description

A manual crimping machine for automotive wiring harness terminals Technical Field

[0001] This utility model relates to the field of manual crimping machine technology, and in particular to a manual crimping machine for automotive wiring harness terminals. Background Technology

[0002] Manual crimping machines are used to crimp automotive wiring harnesses and terminals. A manual crimping machine consists of a base plate, mounting rod, mounting platform, handle, pressure rod, pressure knife, terminal guide plate, and lower die. When using a manual crimping machine, the worker places a row of terminals into the terminal guide plate, then drags the terminals into the lower die on the base plate. Next, the automotive wiring harness is placed into the lower die. The worker then operates the handle on the mounting platform side of the mounting rod. The first connecting rod, under tension, transmits the rotational force of the handle to the swing arm. The swing arm bears the bending moment, changing the direction of the force and amplifying its effect. The second connecting rod, under pressure, converts the swing arm's oscillation into a downward pushing force on the pressure rod, causing the pressure rod to press downwards, thus pressing the pressure knife into the lower die, thereby crimping the automotive wiring harness and terminals.

[0003] The inventors discovered in their daily work that when using a manual crimping machine, the crimping blade wears down due to prolonged crimping of terminals, necessitating its replacement. When replacing the crimping blade, it must first be disassembled. However, when installing a new crimping blade, the worker needs to lift the blade while aligning the mounting holes on the crimping blade and the crimping rod, and then use screws to secure it, which can make the replacement process quite cumbersome. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in actual use, the crimping knife wears down due to prolonged crimping of terminals, requiring replacement. When replacing the crimping knife, the original crimping knife must be disassembled first, but when installing the new crimping knife, the worker needs to lift the crimping knife while keeping the mounting holes on the crimping knife and the crimping rod aligned, and then use screws to fix it, which may make the replacement process cumbersome. Therefore, this invention proposes a manual crimping machine for automotive wiring harness terminals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a manual crimping machine for automotive wiring harness terminals, comprising a base plate, an mounting rod, a lower mold, and a terminal guide plate fixedly connected to the upper end of the base plate, an mounting platform fixedly connected to the arc surface of the mounting rod, a pressure rod slidably inserted into the upper end of the mounting platform, a handle for controlling the downward pressing of the pressure rod provided at the right end of the mounting platform, a pressure knife provided at the lower end of the pressure rod, and a replacement assembly provided between the pressure rod and the pressure knife, the replacement assembly comprising insert blocks slidably inserted into both sides of the inner wall of the pressure rod, the insert blocks being inserted into the pressure knife.

[0006] The effect achieved by the above components is as follows: by setting the replacement component, when replacing the pressure knife, the drive mechanism retracts the insert block into the pressure rod, then drags the pressure knife to separate from the pressure rod, then inserts the new pressure knife into the pressure rod, and then the drive mechanism again inserts the insert block into the pressure knife for fixation, thereby facilitating the replacement of the pressure knife as much as possible.

[0007] Preferably, a first spring is fixedly connected to the right end of the insert block, and the other end of the first spring is fixed to the pressure rod.

[0008] The effect achieved by the above components is as follows: by setting the first spring, when the insert block is inserted into the pressure knife, the first spring is in a compressed state, so that the reverse force pushes the insert block, thereby assisting in limiting the position of the insert block.

[0009] Preferably, the pressure rod has a sliding cavity inside, and magnetic blocks are slidably connected to both sides of the inner wall of the sliding cavity. An iron rod is fixedly connected to the right end of the insertion block, and the iron rod passes through the pressure rod and is attracted by the magnetic blocks.

[0010] The effect achieved by the above components is that when the magnetic block in the sliding cavity moves, it causes the attracting iron rod to move, thereby retracting the insert block into the pressure rod.

[0011] Preferably, movable blocks are slidably connected to both sides of the inner wall of the sliding cavity, and the movable blocks and magnetic blocks are fixedly connected.

[0012] The effect achieved by the above components is that when the moving block moves, the magnetic block inside the sliding cavity moves.

[0013] Preferably, the inner wall of the sliding cavity is provided with a bidirectional screw that is rotatably connected by a bearing. The two ends of the bidirectional screw have opposite threads, and the bidirectional screw is threadedly connected to the moving block.

[0014] The effect achieved by the above components is that the moving blocks on both sides of the sliding cavity can be moved by manually turning the bidirectional screw.

[0015] Preferably, the front side of the lower mold is provided with a fixing component, the fixing component includes a circular ring fixedly connected to the front side of the lower mold, a pressure block is provided on the inner wall of the circular ring, a square rod is fixedly connected to the arc surface of the pressure block, and the circular ring is slidably inserted into the square rod.

[0016] The effect achieved by the above components is as follows: the car wiring harness is inserted into the circular ring, the pressure block presses down on the car wiring harness, the elastic mechanism is in a stretched state, the reverse force pulls the square rod, and the pressure block presses down on the car wiring harness for fixation.

[0017] Preferably, one end of the square rod is fixedly connected to a second spring, and the other end of the second spring is fixed to a circular ring.

[0018] The effect achieved by the above components is as follows: the automotive wiring harness is inserted into the circular ring, causing the pressure block to press the automotive wiring harness, causing the second spring to be in a stretched state, and causing the reverse force to pull the square rod.

[0019] Preferably, an L-shaped rod is fixedly connected to the upper end of the mounting platform, and a third spring is fixedly connected between the L-shaped rod and the pressure rod, with the pressure rod sliding on the L-shaped rod.

[0020] The effect achieved by the above components is that when the lever moves downward, the third spring is in a compressed state, and when the handle is released, the third spring returns to its original position, causing the lever to return to its original position.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by setting up a replacement component, when replacing the pressure knife, the drive mechanism retracts the insert into the pressure rod, then pulls the pressure knife away from the pressure rod, and then inserts the new pressure knife into the pressure rod. Then, the drive mechanism again inserts the insert into the pressure knife for fixation, thereby facilitating the replacement of the pressure knife as much as possible. Because the pressure knife is used to press the terminal for a long time, it becomes worn and needs to be replaced. When replacing the pressure knife, the pressure knife is first disassembled, but when installing the new pressure knife, the worker needs to lift the pressure knife to keep the mounting hole of the pressure knife aligned with the mounting hole on the pressure rod while fixing it with screws, which may make the replacement process cumbersome. Attached Figure Description

[0023] Figure 1 is a three-dimensional structural diagram of this utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the cross-section of the replacement component of this utility model;

[0025] Figure 3 is a three-dimensional structural diagram of the fixing component of this utility model.

[0026] Legend: 1. Base plate; 2. Replacement component; 3. Fixing component; 4. Mounting rod; 5. Lower mold; 6. Terminal guide plate; 7. Mounting platform; 8. Handle; 9. Pressure knife; 10. Pressure rod; 11. L-shaped rod; 12. Third spring; 21. Insert block; 22. Bidirectional screw; 23. Iron rod; 24. First spring; 25. Sliding cavity; 26. Magnetic block; 27. Moving block; 31. Circular ring; 32. Pressure block; 33. Square rod; 34. Second spring. Detailed Implementation

[0027] Referring to Figure 1, this utility model provides a technical solution: a manual crimping machine for automotive wiring harness terminals includes a base plate 1. The upper end of the base plate 1 is fixedly connected to an mounting rod 4, a lower mold 5, and a terminal guide plate 6. The arc surface of the mounting rod 4 is fixedly connected to a mounting platform 7. A pressure rod 10 is slidably inserted into the upper end of the mounting platform 7. A handle 8 for controlling the downward pressing of the pressure rod 10 is provided at the right end of the mounting platform 7. A pressure knife 9 is provided at the lower end of the pressure rod 10. A replacement component 2 is provided between the pressure rod 10 and the pressure knife 9. An L-shaped rod 11 is fixedly connected to the upper end of the mounting platform 7. A third spring 12 is fixedly connected between the L-shaped rod 11 and the pressure rod 10. The pressure rod 10 slides on the L-shaped rod 11. When the pressure rod 10 moves downward, the third spring 12 is in a compressed state. After the handle 8 is released, the third spring 12 returns to its original position, causing the pressure rod 10 to return to its original position.

[0028] Referring to Figure 2, in this embodiment: the replacement component 2 includes insert blocks 21 slidably inserted into both sides of the inner wall of the pressure rod 10. The insert blocks 21 are inserted into the pressure knife 9. By setting the replacement component 2, when replacing the pressure knife 9, the drive mechanism retracts the insert blocks 21 into the pressure rod 10, then pulls the pressure knife 9 away from the pressure rod 10, and then inserts the new pressure knife 9 into the pressure rod 10. Then, the drive mechanism again inserts the insert blocks 21 into the pressure knife 9 for fixation, thereby facilitating the replacement of the pressure knife 9 as much as possible. A first spring 24 is fixedly connected to the right end of the insert block 21, and the other end of the first spring 24 is fixed to the pressure rod 10. By setting the first spring 24, when the insert block 21 is inserted into the pressure knife 9, the first spring 24 is in a compressed state, so that the reverse force pushes the insert block 21, thereby assisting in the replacement of the insert block 21. To limit the movement, the mounting platform 7 has a sliding cavity 25 inside. Magnetic blocks 26 are slidably connected to both sides of the inner wall of the sliding cavity 25. An iron rod 23 is fixedly connected to the right end of the insertion block 21. The iron rod 23 passes through the pressure rod 10 and is attracted by the magnetic blocks 26. When the magnetic blocks 26 in the sliding cavity 25 move, it causes the attracted iron rod 23 to move, thus retracting the insertion block 21 into the pressure rod 10. Moving blocks 27 are slidably connected to both sides of the inner wall of the sliding cavity 25. Moving blocks 27 and magnetic blocks 26 are fixedly connected. When moving blocks 27 move, it causes the magnetic blocks 26 in the sliding cavity 25 to move. A bidirectional screw 22 is provided on the inner wall of the sliding cavity 25 and is rotatably connected by a bearing. The threads at both ends of the bidirectional screw 22 are opposite. The bidirectional screw 22 and the moving blocks 27 are threadedly connected. By manually turning the bidirectional screw 22, the moving blocks 27 on both sides of the sliding cavity 25 can be moved.

[0029] Referring to Figures 1 and 3, in this embodiment: a fixing component 3 is provided on the front side of the lower mold 5. The fixing component 3 includes a circular ring 31 fixedly connected to the front side of the lower mold 5. A pressure block 32 is provided on the inner wall of the circular ring 31. A square rod 33 is fixedly connected to the arc surface of the pressure block 32. The square rod 33 is slidably inserted into the circular ring 31. When the automotive wiring harness is inserted into the circular ring 31, the pressure block 32 presses down on the automotive wiring harness, causing the elastic mechanism to be in a stretched state. This causes a reverse force to pull the square rod 33, so that the pressure block 32 presses down on the automotive wiring harness for fixation. A second spring 34 is fixedly connected to one end of the square rod 33. The other end of the second spring 34 is fixed to the circular ring 31. When the automotive wiring harness is inserted into the circular ring 31, the pressure block 32 presses down on the automotive wiring harness, causing the second spring 34 to be in a stretched state. This causes a reverse force to pull the square rod 33.

[0030] Working principle:

[0031] When using a manual crimping machine (model Tengda optional), the worker places a row of terminals into the terminal guide plate 6, then drags the terminals into the lower mold 5 on the bottom plate 1. Next, the automotive wiring harness is placed into the lower mold 5. The worker then operates the handle 8 on the mounting platform 7 of the mounting rod 4. The first connecting rod is under tension, transmitting the rotational force of the handle 8 to the swing rod. The swing rod bears the bending moment, changing the direction of the force and amplifying its effect. The second connecting rod is under pressure, converting the swing of the swing rod into a downward pushing force of the pressure rod 10, causing the pressure rod 10 to press downwards, thus pressing the crimping knife 9 into the lower mold 5, thereby crimping the automotive wiring harness and terminals. When changing the crimping knife 9, the worker manually turns the double-acting screw 22, causing the moving blocks 27 on both sides of the sliding cavity 25 to move. When the magnetic block 26 in the sliding cavity 25 moves, it causes the attracting iron rod 23 to move, retracting the insert block 21 into the pressure rod 10. Then, the crimping knife 9 is dragged away from the pressure rod 10, and a new crimping knife 9 is inserted into the pressure rod 10. Within 0, the double-ended screw 22 is manually turned again (for loose double-ended screw 22, this application can also use glue to glue the threads; when it needs to be removed, the glue is melted at high temperature and then the screw is turned off forcefully), causing the moving blocks 27 on both sides of the sliding cavity 25 to move, causing the magnetic block 26 to push the iron rod 23, causing the insert block 21 to be inserted into the pressure knife 9 for fixation, thereby facilitating the replacement of the pressure knife 9 as much as possible. By setting the first spring 24, when the insert block 21 is inserted into the pressure knife 9, the first spring 24 is in a compressed state, causing the reverse force to push the insert block 21, thereby assisting in limiting the insertion block 21, inserting the automotive wiring harness into the circular ring 31, causing the pressure block 32 to press the automotive wiring harness of the pressure knife 9, causing the second spring 34 to be in a stretched state, causing the reverse force to pull the square rod 33, causing the pressure block 32 to press the automotive wiring harness for fixation. When the pressure rod 10 moves down, the third spring 12 is in a compressed state. After the handle 8 is released, the third spring 12 returns to its original state, causing the pressure rod 10 to return to its original state.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A manual crimping machine for automotive wiring harness terminals, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to the mounting rod (4), the lower mold (5), and the terminal guide plate (6). The arc surface of the mounting rod (4) is fixedly connected to the mounting platform (7). The upper end of the mounting platform (7) is slidably inserted with a pressure rod (10). The right end of the mounting platform (7) is provided with a handle (8) for controlling the pressure rod (10) to press down. The lower end of the pressure rod (10) is provided with a pressure knife (9). A replacement component (2) is provided between the pressure rod (10) and the pressure knife (9). The replacement component (2) includes a plug (21) slidably inserted on both sides of the inner wall of the pressure rod (10). The plug (21) is inserted into the pressure knife (9).

2. The manual crimping machine for automotive wiring harness terminals according to claim 1, characterized in that: The right end of the insert (21) is fixedly connected to a first spring (24), and the other end of the first spring (24) is fixed to the pressure rod (10).

3. The manual crimping machine for automotive wiring harness terminals according to claim 2, characterized in that: The pressure rod (10) has a sliding cavity (25) inside. Magnetic blocks (26) are slidably connected to both sides of the inner wall of the sliding cavity (25). An iron rod (23) is fixedly connected to the right end of the insert (21). The iron rod (23) passes through the pressure rod (10) and is attracted by the magnetic blocks (26).

4. The manual crimping machine for automotive wiring harness terminals according to claim 3, characterized in that: The inner walls of the sliding cavity (25) are slidably connected to the movable blocks (27), and the movable blocks (27) and the magnetic blocks (26) are fixedly connected.

5. A manual crimping machine for automotive wiring harness terminals according to claim 4, characterized in that: The inner wall of the sliding cavity (25) is provided with a bidirectional screw (22) rotatably connected by a bearing. The two ends of the bidirectional screw (22) have opposite threads, and the bidirectional screw (22) and the moving block (27) are threadedly connected.

6. A manual crimping machine for automotive wiring harness terminals according to claim 5, characterized in that: The front of the lower mold (5) is provided with a fixing component (3), the fixing component (3) includes a circular ring (31) fixedly connected to the front of the lower mold (5), the inner wall of the circular ring (31) is provided with a pressure block (32), the arc surface of the pressure block (32) is fixedly connected with a square rod (33), and the circular ring (31) is slidably inserted into the square rod (33).

7. A manual crimping machine for automotive wiring harness terminals according to claim 6, characterized in that: One end of the square rod (33) is fixedly connected to a second spring (34), and the other end of the second spring (34) is fixed to a circular ring (31).

8. A manual crimping machine for automotive wiring harness terminals according to claim 7, characterized in that: An L-shaped rod (11) is fixedly connected to the upper end of the mounting platform (7), and a third spring (12) is fixedly connected between the L-shaped rod (11) and the pressure rod (10). The pressure rod (10) slides on the L-shaped rod (11).

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