Terminal wire jointing tool

Abstract

The utility model relates to the technical field of terminal lead processing, in particular to a terminal lead jointing tool, which comprises a terminal machine body, an upper pressing block is slidably connected to the surface of the terminal machine body, a lower pressing block is fixedly connected to the surface of the terminal machine body, a die is rotatably connected to the surfaces of the upper pressing block and the lower pressing block, four crimping grooves are arranged on the surface of the die, and the four crimping grooves are connected with the terminal machine body. A turntable is arranged at one end of the mold, a positioning pin is inserted into the surface of the turntable, a connecting shaft is inserted into the surface of the mold, and two stop blocks are inserted into the surface of the connecting shaft; the die has the beneficial effects that a plurality of crimping grooves are formed in the surface of the die, different crimping grooves can be rapidly switched through cooperation of a rotary disc, a fixing plate, a positioning hole and a positioning pin, frequent replacement of the whole die is avoided, and the universality and production flexibility of equipment are improved; and the die which is lost after long-term use can be replaced, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of terminal wire processing technology, specifically a terminal wire joining tool. Background Technology

[0002] Terminal wire bonding fixtures are tools and equipment used to achieve quick and reliable connection between terminals and wires. They are widely used in wire harness processing and production in many fields such as electronics, electrical appliances, automobiles, and aerospace.

[0003] In the prior art, terminal wire bonding equipment typically consists of a motor, an upper pressure head, a lower pressure head, and a mold. In use, the wire terminal is placed on the mold surface of the lower pressure head, and the hydraulic mechanism driven by the motor causes the mold on the upper pressure head to gradually approach and press the lower pressure head, applying appropriate clamping force to the terminal and the wire, thereby achieving the bonding of the terminal and the wire.

[0004] However, during the terminal wire bonding process, when it is necessary to crimp terminals and wires of different specifications or types, the old mold needs to be removed, a mold of the corresponding specification needs to be found and reinstalled, which requires frequent disassembly of the entire mold, resulting in low work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a terminal wire joining tool to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a terminal wire joining fixture, including a terminal machine body, an upper pressing block slidably connected to the surface of the terminal machine body, a lower pressing block fixedly connected to the surface of the terminal machine body, a mold rotatably connected to the surfaces of the upper and lower pressing blocks, four pressing grooves provided on the surface of the mold, a turntable provided at one end of the mold, a positioning pin inserted into the surface of the turntable, a connecting shaft inserted into the surface of the mold, and two stops inserted into the surface of the connecting shaft, the stops pressing against the surface of the mold.

[0007] Preferably, two fixing plates are fixedly connected to one end surface of the upper and lower pressure blocks. The surface of the fixing plates is provided with threaded holes. An arc groove is opened at the opposite end of the upper and lower pressure blocks. A rotating groove is opened on the surface of the arc groove. The rotating groove is a circular groove with a cross-section of "+".

[0008] Preferably, a rotating shaft is rotatably connected to the surface of the rotating groove. The rotating shaft is a circular plate structure with a cross-section of "+". The turntable is fixedly connected to one end surface of the rotating shaft, and two positioning holes are opened on the surface of the turntable.

[0009] Preferably, the two positioning holes are vertically distributed, the positioning pin passes through one of the positioning holes, the surface of the positioning pin is provided with a threaded part, and the positioning pin is connected to the threaded hole on the surface of the fixing plate.

[0010] Preferably, the connecting shaft has a square plate-like structure and is fixedly connected to the end surface of the rotating shaft away from the turntable. The surface of the connecting shaft has a socket, and elastic blocks are fixedly connected to the center positions on both sides of the socket.

[0011] Preferably, the stop blocks are square block structures, and the surfaces of the two stop blocks that are far apart from each other are provided with inclined surfaces. The two stop blocks are fixedly connected to the two sides of the elastic block respectively.

[0012] Preferably, the mold surface has a connecting hole, which is a square groove. Two grooves are formed on one end of the connecting hole. The connecting shaft passes through the surface of the connecting hole, and one end of the stop block is in contact with the surface of the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The terminal wire bonding fixture proposed in this utility model has multiple crimping grooves on the surface of the mold. Through the cooperation of a turntable, a fixing plate, positioning holes and positioning pins, different crimping grooves can be quickly switched, avoiding frequent replacement of the entire mold and improving the versatility of the equipment and production flexibility.

[0015] The mold surface is provided with connection holes. Through the cooperation of connecting shaft, stop block and elastic block, the mold that has been used for a long time and has become worn can be replaced, thus improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a half-sectional schematic diagram of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0020] Figure 5 This is an exploded view of the structure of this utility model.

[0021] In the diagram: 1. Terminal crimping machine body; 2. Upper pressure block; 3. Lower pressure block; 4. Mold; 5. Crimping groove; 6. Turntable; 7. Fixing plate; 8. Rotating shaft; 9. Positioning hole; 10. Insertion hole; 11. Connecting hole; 12. Stop block; 13. Elastic block; 14. Rotating groove; 15. Positioning pin; 16. Connecting shaft; 17. Arc groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0023] Please see Figures 1 to 2 This utility model provides a technical solution: a terminal wire joining tool, including a terminal machine body 1, an upper pressing block 2 slidably connected to the surface of the terminal machine body 1, a lower pressing block 3 fixedly connected to the surface of the terminal machine body 1, a mold 4 rotatably connected to the surfaces of the upper pressing block 2 and the lower pressing block 3, four pressing grooves 5 are provided on the surface of the mold 4, the four pressing grooves 5 are of different sizes and specifications, and the four pressing grooves 5 are respectively set in four positions of the mold 4. Every time the turntable 6 rotates 90 degrees, the pressing groove 5 in one position is switched. A turntable 6 is provided at one end of the mold 4, a positioning pin 15 is inserted into the surface of the turntable 6, a connecting shaft 16 is inserted into the surface of the mold 4, and two stops 12 are inserted into the surface of the connecting shaft 16, the stops 12 pressing against the surface of the mold 4;

[0024] Multiple pressing grooves 5 are set on the surface of the mold 4. Through the cooperation of the turntable 6, the fixing plate 7, the positioning hole 9 and the positioning pin 15, different pressing grooves 5 can be quickly switched, avoiding frequent replacement of the entire mold 4, and improving the versatility of the equipment and production flexibility.

[0025] The surface of the mold 4 is provided with a connecting hole 11, and a wear-resistant coating is added inside the connecting hole 11. Through the cooperation of the connecting shaft 16, the stop block 12 and the elastic block 13, the mold 4 that has been worn out after long-term use can be replaced, thereby improving maintenance efficiency. Example 2

[0026] Please see Figures 1 to 3 Based on Embodiment 1, in order to switch the position of the pressing groove 5 of different specifications, two fixing plates 7 are fixedly connected to one end surface of the upper pressing block 2 and the lower pressing block 3. The surface of the fixing plate 7 is provided with threaded holes. The fixing plate 7 can provide a fixed connection point for the positioning pin 15, so that the positioning pin 15 can firmly position the turntable 6 and the mold 4, ensuring that the mold 4 will not loosen or shift due to external force during the pressing process.

[0027] Both the upper pressure block 2 and the lower pressure block 3 have an arc groove 17 at their opposite ends. The arc groove 17 provides space for the rotation of the mold 4. The surface of the arc groove 17 has a rotating groove 14. The rotating groove 14 is a circular groove with a cross-section of "+". The rotating groove 14 and the rotating shaft 8 cooperate with each other, so that the mold 4 can rotate flexibly. This allows the operator to switch different pressing grooves 5 on the mold 4 according to production needs, while ensuring that the mold 4 will not loosen or fall off during rotation and pressing.

[0028] A rotating shaft 8 is rotatably connected to the surface of the rotating groove 14. The rotating shaft 8 is a circular plate structure with a cross-section of "+". The turntable 6 is fixedly connected to one end surface of the rotating shaft 8. Two positioning holes 9 are opened on the surface of the turntable 6. The two positioning holes 9 are vertically distributed. The positioning pin 15 passes through one of the positioning holes 9. The surface of the positioning pin 15 is provided with a threaded part. The positioning pin 15 and the threaded hole on the surface of the fixing plate 7 are connected to each other. After the mold 4 is adjusted to the correct position, the positioning pin 15 is tightened to achieve precise positioning and stable fixation of the mold 4. Example 3

[0029] Please see Figures 1 to 5 Based on Embodiment 2, in order to replace the worn mold 4, the connecting shaft 16 is a square plate structure. The connecting shaft 16 is fixedly connected to the end surface of the rotating shaft 8 away from the turntable 6. The surface of the connecting shaft 16 is provided with a socket 10. Elastic blocks 13 are fixedly connected to the center positions of both sides of the socket 10. The elastic blocks 13 are made of polyurethane elastomer. Only part of the surface of the elastic blocks 13 is fixedly connected to the socket 10, while the other parts are in a close fit state, so that the elastic blocks 13 will deform when squeezed.

[0030] The stop block 12 has a square block structure. The surfaces of the two stop blocks 12 that are far apart from each other are provided with bevels. The two stop blocks 12 are fixedly connected to the two sides of the elastic block 13. The cooperation between the stop block 12 and the groove provides a reliable way to fix the mold 4, ensuring that the mold 4 will not loosen or fall off due to vibration, pressure or other factors during the pressing process. At the same time, the bevels facilitate the disassembly and installation of the worn mold 4.

[0031] The surface of the mold 4 is provided with a connecting hole 11. The connecting hole 11 is a square groove. It is designed to be a square groove so that it can cooperate with the connecting shaft 16. At the same time, it is convenient for the mold 4 and the turntable 6 to rotate synchronously. Two grooves are provided on one end of the surface of the connecting hole 11. The connecting shaft 16 passes through the surface of the connecting hole 11. One end of the stop block 12 is in contact with the surface of the groove.

[0032] In actual use, when it is necessary to install the mold 4, first align the connecting hole 11 of the mold 4 with the connecting shaft 16. Since the elastic blocks 13 on both sides of the insertion hole 10 on the surface of the connecting shaft 16 are fixedly connected to the stop blocks 12, when the connecting shaft 16 is inserted into the connecting hole 11, the edge of the connecting hole 11 of the mold 4 will press against the inclined surface of the stop block 12, causing the elastic block 13 to deform and drive the stop block 12 to contract towards the center of the insertion hole 10, so that the connecting shaft 16 can be smoothly inserted into the connecting hole 11. When the connecting shaft 16 is fully inserted, the elastic block 13 returns to its deformed state, and the stop block 12... 2. The mold 4 pops out and fits into the groove at one end of the connecting hole 11 to achieve a stable connection between the mold 4 and the connecting shaft 16. After installation, the terminal and wire are placed on the surface of the crimping groove 5. The upper pressure block 2 moves downward along its sliding direction under the drive of the terminal machine body 1, and cooperates with the lower pressure block 3 to apply pressure to the mold 4. Under the pressure, the terminal and wire are tightly pressed together to complete the connection work of the terminal and wire. When disassembling the mold 4, use a tool to press the inclined surface of the stop block 12 inward to deform the elastic block 13 and then pull out the connecting shaft 16.

[0033] When it is necessary to crimp terminals and wires of different specifications, the positioning pin 15 is disengaged from the positioning hole 9 and the connecting hole on the fixing plate 7. Then, the turntable 6 is rotated to adjust the position of the mold 4 to select the appropriate crimping groove 5. After the mold 4 is rotated to the required position, the positioning pin 15 is inserted through one of the positioning holes 9 and connected with the threaded hole on the surface of the fixing plate 7. By tightening the positioning pin 15, it is tightly fixed to the fixing plate 7, thereby locking the position of the turntable 6 and the mold 4 and achieving precise positioning of the mold 4.

[0034] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal wire bonding fixture, characterized in that: The device includes a terminal crimping machine body (1), an upper pressure block (2) is slidably connected to the surface of the terminal crimping machine body (1), a lower pressure block (3) is fixedly connected to the surface of the terminal crimping machine body (1), a mold (4) is rotatably connected to the surfaces of the upper pressure block (2) and the lower pressure block (3), four crimping grooves (5) are provided on the surface of the mold (4), a turntable (6) is provided at one end of the mold (4), a positioning pin (15) is inserted into the surface of the turntable (6), a connecting shaft (16) is inserted into the surface of the mold (4), and two stops (12) are inserted into the surface of the connecting shaft (16), the stops (12) abut against the surface of the mold (4).

2. The terminal wire joining fixture according to claim 1, characterized in that: Two fixing plates (7) are fixedly connected to one end surface of the upper pressure block (2) and the lower pressure block (3). The surface of the fixing plate (7) is provided with threaded holes. An arc groove (17) is opened at the opposite end of the upper pressure block (2) and the lower pressure block (3). A rotating groove (14) is opened on the surface of the arc groove (17). The rotating groove (14) is a circular groove with a cross-section of "+".

3. The terminal wire joining fixture according to claim 2, characterized in that: The rotating groove (14) is rotatably connected to a rotating shaft (8). The rotating shaft (8) is a circular plate structure with a cross-section of "+". The turntable (6) is fixedly connected to one end surface of the rotating shaft (8). Two positioning holes (9) are opened on the surface of the turntable (6).

4. The terminal wire joining fixture according to claim 3, characterized in that: The two positioning holes (9) are vertically distributed, and the positioning pin (15) passes through one of the positioning holes (9). The surface of the positioning pin (15) is provided with a threaded part, and the positioning pin (15) and the threaded hole on the surface of the fixing plate (7) are connected to each other.

5. The terminal wire joining fixture according to claim 1, characterized in that: The connecting shaft (16) has a square plate structure. The connecting shaft (16) is fixedly connected to the end surface of the rotating shaft (8) away from the turntable (6). The surface of the connecting shaft (16) is provided with a socket (10). Elastic blocks (13) are fixedly connected to the center positions on both sides of the socket (10).

6. The terminal wire joining fixture according to claim 5, characterized in that: The stop block (12) has a square block structure. The two stop blocks (12) have inclined surfaces on their opposite ends. The two stop blocks (12) are fixedly connected to the two sides of the elastic block (13).

7. The terminal wire joining fixture according to claim 1, characterized in that: The mold (4) has a connecting hole (11) on its surface. The connecting hole (11) is a square groove. Two grooves are opened on one end of the connecting hole (11). The connecting shaft (16) passes through the surface of the connecting hole (11). One end of the stop block (12) is in contact with the surface of the groove.

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