Bending forming device and method for connector terminal

Abstract

The invention provides a connector terminal bending forming device and method, and relates to the technical field of connector terminal bending, the connector terminal bending forming device comprises a fixing block and a plurality of oil outlet pipes installed at the lower end of the fixing block in a communicating mode, an oil inlet pipe is installed on the fixing block, and one end of the oil inlet pipe is communicated with external oil inlet equipment; one end of an oil inlet pipe is communicated with a fixing block, the other end of the oil inlet pipe is communicated with a fixing block and a plurality of oil outlet pipes, inner rods are coaxially installed in the oil outlet pipes, and guide rods are coaxially installed at the lower ends of the inner rods. According to the multi-layer positioning design, the conveying plate, the limiting plate, the guide rod and the positioning hole are precisely matched, it is guaranteed that the terminal body is always located at the accurate and stable position in the bending process, the unique lubricating mechanism achieves real-time lubrication of key components through cooperative work of the oil outlet pipe, the oil outlet groove and the opening and closing disc, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of bending connector terminals, and more particularly to a device and method for bending connector terminals. Background Art

[0002] In modern industrial production, the bending and forming of connector terminals is a precise process, and the positioning method in the existing technology affects the quality and efficiency of the processing. The traditional positioning device generally adopts a fixed block to directly press multiple terminals. This positioning method leads to low positioning accuracy and causes mutual interference and deformation between terminals. Due to the lack of precise positioning mechanism, the stress state of different terminals is difficult to maintain consistency, which means that each terminal may have a small but fatal deviation in the subsequent bending process, which ultimately affects the overall quality and consistency of the product.

[0003] Moreover, this traditional positioning method has lubrication defects. The failure to effectively lubricate during the positioning process will result in an incoherent and uneven positioning process, reducing production efficiency and processing accuracy. The additional friction to the terminals during the positioning process will cause surface wear and deformation, and may even damage the structural integrity of the terminals, thereby affecting the service life and reliability of the connector terminals. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a device and method for bending and forming connector terminals to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a bending and forming device for a connector terminal, comprising a base;

[0008] The positioning mechanism comprises a fixed block and a plurality of oil outlet pipes connected and installed at the lower end of the fixed block, an oil inlet pipe is installed on the fixed block, one end of the oil inlet pipe is connected to an external oil inlet device, and the other end of the oil inlet pipe is connected to the fixed block and the plurality of the oil outlet pipes, an internal rod is coaxially installed in the oil outlet pipe, a guide rod is coaxially installed at the lower end of the internal rod, a terminal body is slidably connected to the side wall of the guide rod, a positioning hole is opened at a position where the guide rod contacts the terminal body, the positioning hole and the guide rod are coaxially arranged, and the distance between the two guide rods is an integer multiple of the distance between the two positioning holes; and

[0009] The lubrication mechanism includes multiple pressure rods and multiple transverse holes opened along the inner wall of the guide rod. The pressure rods are slidably connected in the transverse holes, and a vertical rod is coaxially slidably arranged in the inner rod. A return spring is installed at the lower end of the vertical rod, and the other end of the return spring is connected to the guide rod. A hexagonal groove is opened at the lower end of the guide rod, and an annular groove is opened on the side wall of the vertical rod. When the guide rod is not in the guiding state, the annular groove is at the upper end of the pressure rod, and multiple pressure rods are respectively pressed against the side wall of the vertical rod. No less than eight limiting holes are opened on the side wall of the inner rod along the axis, and a control rod is slidably connected in each of the limiting holes. A round head is provided at the end of the vertical rod away from the return spring, and multiple control rods respectively abut against the outer wall of the round head.

[0010] Preferably, the lubrication mechanism also includes a two-way rod, which is coaxially installed in the control rod, and a limiting ring is coaxially slidably connected to the two-way rod. Two-way springs are respectively installed on both sides of the limiting ring, and the two-way springs on both sides are respectively connected to the control rod, and the limiting ring is fixedly installed in the limiting hole.

[0011] Preferably, the lubrication mechanism also includes an oil outlet groove opened on the lower end surface of the oil outlet pipe, an opening and closing disk is slidably mounted on the oil outlet groove, the opening and closing disk is coaxially mounted on the outer wall of the guide rod, a guide sleeve is fixedly mounted in the oil outlet pipe, and the internal rod is coaxially slidably connected in the guide sleeve.

[0012] Preferably, an intermediate disk is provided on the inner thread of the oil outlet pipe, and a plurality of through grooves are equidistantly provided on the outer wall of the intermediate disk, and the plurality of through grooves connect the spaces on the upper and lower sides of the oil outlet pipe. A plurality of follower rods and sealing springs are installed at one end of the opening and closing disk away from the guide rod, and the sealing spring is pressed against the intermediate disk, and the plurality of follower rods are slidably connected in the intermediate disk.

[0013] Preferably, the inner rod is slidably connected in the middle disk, and a rounded corner is provided at the position where the inner rod slides. When the guide rod moves upward, the control rod will press against the rounded corner so that the multiple control rods will shrink synchronously.

[0014] Preferably, a fixing frame is fixedly mounted on the base, a bending cylinder is mounted on the fixing frame, the protruding end of the bending cylinder is connected to a synchronization plate, a bending plate is mounted on a side of the synchronization plate away from the bending cylinder, and when the bending plate moves downward, it presses on the terminal body, a receiving seat is mounted on the fixing frame, a plurality of the terminal bodies are slidably connected to the receiving seat, and the plurality of the terminal bodies are sequentially fitted with each other.

[0015] Preferably, a top block is installed on the side of the synchronization plate close to the bending plate, and a plurality of telescopic rods are installed on the top block. The plurality of telescopic rods are slidably connected in the fixed block, and each of the telescopic rods is respectively sleeved with a compression spring, and the two ends of the plurality of compression springs are respectively connected to the top block and the fixed block.

[0016] Preferably, the positioning mechanism also includes a conveying plate installed on the base, and limit plates are respectively installed on the conveying plate and the receiving seat. When the terminal body is on the conveying plate, two ends of the plurality of terminal bodies are respectively slidably connected between the conveying plate and the limit plate. When the terminal body is on the receiving seat, two ends of the plurality of terminal bodies are respectively slidably connected between the receiving seat and the limit plate. A transverse seat is slidably connected to the conveying plate, and a transverse cylinder is fixedly provided on the conveying plate, and the protruding end of the transverse cylinder is connected to the transverse seat. A lifting block is slidably installed on the transverse seat, and two toggle rods are installed on the lifting block. Each of the terminal bodies is provided with a plurality of toggle holes, and the distance between the two toggle rods is an integer multiple of the distance between the two toggle holes. A vertical cylinder is fixedly provided on the transverse seat, and the protruding end of the vertical cylinder is connected to the lifting block.

[0017] Preferably, a closed cylinder is provided on the base, and a rocking arm is rotatably provided on the receiving seat, the protruding end of the closed cylinder is connected to one end of the rocking arm, a connecting spring is installed at the other end of the rocking arm, a closed block is installed at the other end of the connecting spring, an inner nest is installed on the side wall of the receiving seat, one side of the closed block is slidably connected to the inner nest, and the other side of the closed block is slidably connected to the side walls of the receiving seat and the limiting plate.

[0018] The present invention provides a method for bending and forming a connector terminal, comprising the following steps:

[0019] Step 1: The first is the feeding and positioning stage of the terminal body. The operator places multiple terminal bodies between the conveying plate and the limit plate, and accurately limits the terminal body through the limit plate to ensure that the terminal body can only move horizontally along the conveying plate. The vertical cylinder drives the lifting block to move downward, and the two toggle rods move downward synchronously and are inserted into the toggle hole of the terminal.

[0020] Step 2 is the terminal body fixing and bending stage. The transverse cylinder drives the transverse seat to move to the left, and multiple terminal bodies are close and fitted together. The bending cylinder drives the synchronous plate to move downward. The fixed block is first pressed on the terminal body, and the guide rod is synchronously inserted into the positioning hole to achieve precise positioning of the terminal body. Then the bending plate is pressed on the terminal body and the terminal body is bent along the receiving seat. The compression spring provides a stable clamping force.

[0021] The last part of step three is the terminal body ejection and reset stage. After loosening the bending plate and the fixing block, the horizontal cylinder moves back and forth to eject the bent terminal body. The lubrication mechanism works at the same time to achieve real-time lubrication of key components through the oil outlet pipe and the opening and closing disk. The pressure rod and the vertical rod are automatically reset to prepare for the next processing, completing the entire terminal body bending and forming cycle.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a device and method for bending and forming connector terminals, which have the following beneficial effects:

[0024] This connector terminal bending and forming device achieves high precision and stability in terminal processing through precise positioning and lubrication mechanisms. The multi-level positioning design, including the precise coordination of the conveying plate, limit plate, guide rod and positioning hole, ensures that the terminal body is always in an accurate and stable position during the bending process. The unique lubrication mechanism achieves real-time lubrication of key components through the coordinated work of the oil outlet pipe, oil outlet groove and opening and closing disk, effectively reducing friction, reducing wear and extending the service life of the equipment.

[0025] At the same time, the device adopts a combination of bending cylinders, synchronous plates and bending plates to achieve precise bending of terminals. Through the precise coordination of the horizontal cylinder, vertical cylinder and closed cylinder, and the matching design of multiple toggle rods and toggle holes, multiple terminals can be bent synchronously and evenly, greatly improving production efficiency and product consistency. This innovative design not only overcomes the technical limitations of uneven bending and low precision in traditional bending technology, but also significantly improves the intelligence level of connector terminal processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a bending and forming device and method for connector terminals in the present invention;

[0027] Figure 2 For the present invention Figure 1 A partial enlarged view of middle A;

[0028] Figure 3 It is a structural schematic diagram of the transverse seat in the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the transverse seat and the terminal body in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the fixing frame in the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the bending plate, the fixing block and the terminal body in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the fixing block in the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the terminal body in the present invention;

[0034] Fig. 9 It is a schematic cross-sectional structure diagram of the oil outlet pipe in the present invention;

[0035] Fig.10 It is a schematic cross-sectional structure diagram of the internal rod and the opening and closing plate in the present invention;

[0036] Fig.11 It is a structural schematic diagram of the control rod in the present invention;

[0037] Fig.12 It is a schematic diagram of the structure of the middle disk in the present invention.

[0038] In the figure: 1, base; 2, fixing block; 3, oil outlet pipe; 4, oil inlet pipe; 5, internal rod; 6, guide rod; 7, terminal body; 8, positioning hole; 9, pressure rod; 10, transverse hole; 11, vertical rod; 12, return spring; 13, hexagonal groove; 14, annular groove; 15, limit hole; 16, control rod; 17, round head; 18, two-way rod; 19, limit ring; 20, two-way spring; 21, oil outlet groove; 23, opening and closing disk; 24, guide sleeve; 25, middle disk; 26, through groove; 27 , follow-up rod; 28, sealing spring; 29, fillet; 30, fixed frame; 31, bending cylinder; 32, synchronous plate; 33, bending plate; 34, receiving seat; 35, top block; 36, telescopic rod; 37, compression spring; 38, conveying plate; 39, limit plate; 40, transverse seat; 41, transverse cylinder; 42, lifting block; 43, toggle rod; 44, toggle hole; 45, vertical cylinder; 46, closed cylinder; 47, rocking rod; 48, connecting spring; 49, closing block; 50, inner nesting. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0041] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0042] See also Figures 1 to 8 A bending and forming device for connector terminals comprises a base 1 positioning mechanism, comprising a fixed block 2 and a plurality of oil outlet pipes 3 connected and installed at the lower end of the fixed block 2, an oil inlet pipe 4 is installed on the fixed block 2, one end of the oil inlet pipe 4 is connected to an external oil inlet device, and the other end of the oil inlet pipe 4 is connected to the fixed block 2 and the plurality of oil outlet pipes 3, an internal rod 5 is coaxially installed in the oil outlet pipe 3, a guide rod 6 is coaxially installed at the lower end of the internal rod 5, a terminal body 7 is slidably connected to the side wall of the guide rod 6, and the contact position between the guide rod 6 and the terminal body 7 is opened. A positioning hole 8 is provided, the positioning hole 8 and the guide rod 6 are coaxially arranged, the distance between the two guide rods 6 is an integer multiple of the distance between the two positioning holes 8, the positioning mechanism also includes a conveying plate 38 installed on the base 1, and a limit plate 39 is installed on the conveying plate 38 and the receiving seat 34 respectively. When the terminal body 7 is on the conveying plate 38, the two ends of the plurality of terminal bodies 7 are respectively slidably connected between the conveying plate 38 and the limit plate 39, and when the terminal body 7 is on the receiving seat 34, the two ends of the plurality of terminal bodies 7 are respectively slidably connected to Between the receiving seat 34 and the limiting plate 39, a transverse seat 40 is slidably connected to the conveying plate 38, and a transverse cylinder 41 is fixedly provided on the conveying plate 38, and the extended end of the transverse cylinder 41 is connected to the transverse seat 40, and a lifting block 42 is slidably installed on the transverse seat 40, and two toggle rods 43 are installed on the lifting block 42. A plurality of toggle holes 44 are opened on each terminal body 7, and the distance between the two toggle rods 43 is an integer multiple of the distance between the two toggle holes 44. A vertical cylinder 45 is fixedly provided on the transverse seat 40, and the vertical cylinder The extended end of 45 is connected to the lifting block 42, a closed cylinder 46 is provided on the base 1, and a rocking arm 47 is rotatably provided on the receiving seat 34, the extended end of the closed cylinder 46 is connected to one end of the rocking arm 47, a connecting spring 48 is installed at the other end of the rocking arm 47, a closed block 49 is installed at the other end of the connecting spring 48, an inner nest 50 is installed on the side wall of the receiving seat 34, one side of the closed block 49 is slidably connected in the inner nest 50, and the other side of the closed block 49 is slidably connected to the receiving seat 34 and the side wall of the limiting plate 39.

[0043] When bending the terminal body 7, firstly, multiple terminal bodies 7 are placed between the conveying plate 38 and the limiting plate 39 through external equipment, and then the terminal bodies 7 are limited by the limiting plate 39 and the conveying plate 38 so that they can only move laterally along the conveying plate 38. When multiple terminal bodies 7 are placed on the conveying plate 38 in turn, the transverse seat 40 is moved to the rightmost end, and then the vertical cylinder 45 is started to drive the lifting block 42 to move downward, and the two toggle rods 43 also move downward synchronously. Since the distance between the two toggle rods 43 is an integer multiple of the distance between the two toggle holes 44, the toggle rod 43 is inserted into the toggle hole 44. The toggle rod 43 at the other end will also be inserted into the toggle hole 44. Starting the transverse cylinder 41 will drive the transverse seat 40 to move to the left along the conveying plate 38, and then between the multiple receiving seats 34 and the limiting plate 39, since the closing block 49 is attached to the receiving seat 34 at this time, the multiple terminal bodies 7 are close to each other and attached to each other. At this time, the bending cylinder is started The cam 33 is pressed against the locking cam 31 and the locking cam 32 is pressed against the locking cam 33 and the locking cam 3 ...

[0044] See also Figures 9 to 12The lubrication mechanism includes a plurality of pressure rods 9 and a plurality of transverse holes 10 opened along the inner wall of the guide rod 6. The pressure rod 9 is slidably connected in the transverse hole 10, and a vertical rod 11 is coaxially slidably provided in the inner rod 5. A return spring 12 is installed at the lower end of the vertical rod 11, and the other end of the return spring 12 is connected to the guide rod 6. A hexagonal groove 13 is opened at the lower end of the guide rod 6, and an annular groove 14 is opened on the side wall of the vertical rod 11. When the guide rod 6 is not in the guiding state, the annular groove 14 is at the upper end of the pressure rod 9, and the plurality of pressure rods 9 are respectively pressed against the side wall of the vertical rod 11. No less than eight limiting holes 15 are opened on the side wall of the inner rod 5 along the axis, and a control rod 16 is slidably connected in each limiting hole 15. A round head 17 is provided at one end of the straight rod 11 away from the return spring 12, and a plurality of control rods 16 respectively abut against the outer wall of the round head 17. The lubrication mechanism also includes a two-way rod 18, which is coaxially mounted in the control rod 16. A limit ring 19 is coaxially slidably connected to the two-way rod 18. Two-way springs 20 are respectively installed on both sides of the limit ring 19. The two-way springs 20 on both sides are respectively connected to the control rod 16. The limit ring 19 is fixedly installed in the limit hole 15. The lubrication mechanism also includes an oil outlet groove 21 provided on the lower end surface of the oil outlet pipe 3, an opening and closing disk 23 is slidably mounted on the oil outlet groove 21, and the opening and closing disk 23 is coaxially mounted on the outer wall of the guide rod 6. A guide sleeve 24 is fixedly installed in the oil outlet pipe 3. The rod 5 is coaxially slidably connected to the guide sleeve 24, the inner thread of the oil outlet pipe 3 is provided with an intermediate disk 25, and a plurality of through grooves 26 are equidistantly provided on the outer wall of the intermediate disk 25, and the plurality of through grooves 26 communicate with the space on the upper and lower sides of the oil outlet pipe 3. A plurality of follower rods 27 and a sealing spring 28 are installed at the end of the opening and closing disk 23 away from the guide rod 6, and the sealing spring 28 is pressed on the intermediate disk 25, and a plurality of follower rods 27 are slidably connected in the intermediate disk 25, and the internal rod 5 is slidably connected in the intermediate disk 25, and a fillet 29 is provided at the position where the internal rod 5 slides. When the guide rod 6 moves upward, the control rod 16 will press on the fillet 29 to make the plurality of control rods 16 shrink synchronously, and a fixing frame 30 is fixedly installed on the base 1, and a fixing frame 30 is installed on the fixing frame 30 A bending cylinder 31 is installed, and the protruding end of the bending cylinder 31 is connected to the synchronous plate 32. A bending plate 33 is installed on the side of the synchronous plate 32 away from the bending cylinder 31. When the bending plate 33 moves downward, it will press on the terminal body 7. A receiving seat 34 is installed on the fixed frame 30. Multiple terminal bodies 7 are slidably connected to the receiving seat 34, and the multiple terminal bodies 7 are sequentially fitted with each other. A top block 35 is installed on the side of the synchronous plate 32 close to the bending plate 33. Multiple telescopic rods 36 are installed on the top block 35. The multiple telescopic rods 36 are slidably connected in the fixed block 2. Each telescopic rod 36 is respectively sleeved with a compression spring 37, and the two ends of the multiple compression springs 37 are respectively connected to the top block 35 and the fixed block 2.

[0045] During positioning, as the fixing block 2 moves downward, the oil outlet pipe 3 and the guide rod 6 move downward synchronously, and then the lower end of the guide rod 6 is first inserted into the positioning hole 8, and then the circular side wall of the guide rod 6 fits in the positioning hole 8. As the sliding continues, multiple pressure rods 9 will press against the terminal body 7. At this time, the guide rod 6 and the terminal body 7 are in a stopped state, and the pressure rod 9 is now pressed against the side wall of the vertical rod 11, so the pressure rod 9 is in a horizontally fixed state, but the oil outlet pipe 3 will continue to move downward, so the opening and closing disk 23 will release the fit between the oil outlet groove 21, and the lubricating oil in the oil outlet pipe 3 will flow into between the guide rod 6 and the positioning hole 8 through the oil outlet groove 21, thereby lubricating both of them and avoiding damage caused by excessive friction. As it continues to move downward, the control rod 16 will press against the fillet 29, so multiple control rods 16 will shrink toward the axis along with the fillet 29, and the other side of the control rod 16 The end of the lever 10 is pressed against the round head 17, and then the vertical rod 11 is pushed downward, and then the pressure rod 9 is pressed into the annular groove 14. The pressure rod 9 and the transverse hole 10 have a small friction force. The friction force makes the pressure rod 9 move only when it is subjected to a large force. Then the pressure rod 9 releases the connection with the positioning hole 8, so that the guide rod 6 continues to slide downward along the positioning hole 8. When the pressure rod 9 is not under force, the vertical rod 11 will be pushed to continue to move upward under the action of the return spring 12, and then the pressure rod 9 continues to press against the side wall of the vertical rod 11, thereby completing the return of the pressure rod 9, and then the fixing block 2 is pressed on the terminal body 7, thereby completing the fixing process, during the bending process, after the bending is completed, it moves upward, at this time the pressure rod 9 continues to press against the positioning hole 8, and then the guide rod 6 stops moving, the oil outlet pipe 3 continues to move upward, and the lubrication process is repeated again, and then the re-lubrication and resetting process is completed.

[0046] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bending and forming device for a connector terminal, comprising a base (1); The positioning mechanism is characterized by: The invention comprises a fixed block (2) and a plurality of oil outlet pipes (3) connected and mounted at the lower end of the fixed block (2); an oil inlet pipe (4) is mounted on the fixed block (2); one end of the oil inlet pipe (4) is connected to an external oil inlet device; the other end of the oil inlet pipe (4) is connected to the fixed block (2) and the plurality of oil outlet pipes (3); an internal rod (5) is coaxially mounted inside the oil outlet pipe (3); a guide rod (6) is coaxially mounted at the lower end of the internal rod (5); a terminal body (7) is slidably connected to the side wall of the guide rod (6); a positioning hole (8) is provided at a position where the guide rod (6) and the terminal body (7) contact each other; the positioning hole (8) and the guide rod (6) are coaxially arranged; and the distance between two guide rods (6) is an integer multiple of the distance between the two positioning holes (8); and The lubrication mechanism comprises a plurality of pressure rods (9) and a plurality of transverse holes (10) opened along the inner wall of a guide rod (6), wherein the pressure rods (9) are slidably connected in the transverse holes (10), and a vertical rod (11) is coaxially slidably arranged in the inner rod (5), a return spring (12) is installed at the lower end of the vertical rod (11), and the other end of the return spring (12) is connected to the guide rod (6), a hexagonal groove (13) is opened at the lower end of the guide rod (6), and an annular groove (14) is opened on the side wall of the vertical rod (11). When the guide rod (6) ) is not in the guiding state, the annular groove (14) is at the upper end of the pressure rod (9), and multiple pressure rods (9) are respectively pressed against the side wall of the vertical rod (11), and no less than eight limiting holes (15) are opened on the side wall of the inner rod (5) along the axis, and a control rod (16) is slidably connected in each of the limiting holes (15). A round head (17) is provided at one end of the vertical rod (11) away from the return spring (12), and multiple control rods (16) are respectively in contact with the outer wall of the round head (17).

2. A bending and forming device for connector terminals according to claim 1, characterized in that: The lubrication mechanism also includes a bidirectional rod (18), the bidirectional rod (18) is coaxially installed in the control rod (16), a limiting ring (19) is coaxially slidably connected to the bidirectional rod (18), bidirectional springs (20) are respectively installed on both sides of the limiting ring (19), the bidirectional springs (20) on both sides are respectively connected to the control rod (16), and the limiting ring (19) is fixedly installed in the limiting hole (15).

3. The bending and forming device for connector terminals according to claim 1, characterized in that: The lubrication mechanism also includes an oil outlet groove (21) provided on the lower end surface of the oil outlet pipe (3), an opening and closing disc (23) being slidably mounted on the oil outlet groove (21), the opening and closing disc (23) being coaxially mounted on the outer wall of the guide rod (6), a guide sleeve (24) being fixedly mounted in the oil outlet pipe (3), and the internal rod (5) being coaxially slidably connected in the guide sleeve (24).

4. A bending and forming device for connector terminals according to claim 3, characterized in that: The oil outlet pipe (3) is internally threaded with an intermediate disk (25), and a plurality of through grooves (26) are equidistantly formed on the outer wall of the intermediate disk (25). The plurality of through grooves (26) are connected to the spaces on the upper and lower sides of the oil outlet pipe (3). A plurality of follower rods (27) and a sealing spring (28) are installed at one end of the opening and closing disk (23) away from the guide rod (6). The sealing spring (28) is pressed against the intermediate disk (25), and the plurality of follower rods (27) are slidably connected in the intermediate disk (25).

5. A bending and forming device for connector terminals according to claim 4, characterized in that: The inner rod (5) is slidably connected in the middle disk (25), and a rounded corner (29) is provided at the position where the inner rod (5) slides. When the guide rod (6) moves upward, the control rod (16) will press against the rounded corner (29) so that the multiple control rods (16) will shrink synchronously.

6. The bending and forming device for connector terminals according to claim 1, characterized in that: A fixing frame (30) is fixedly mounted on the base (1), a bending cylinder (31) is mounted on the fixing frame (30), the protruding end of the bending cylinder (31) is connected to a synchronous plate (32), a bending plate (33) is mounted on a side of the synchronous plate (32) away from the bending cylinder (31), when the bending plate (33) moves downward, it presses on the terminal body (7), a receiving seat (34) is mounted on the fixing frame (30), a plurality of the terminal bodies (7) are slidably connected to the receiving seat (34), and the plurality of the terminal bodies (7) are sequentially fitted to each other.

7. A bending and forming device for connector terminals according to claim 6, characterized in that: A top block (35) is installed on the side of the synchronous plate (32) close to the bending plate (33), and a plurality of telescopic rods (36) are installed on the top block (35). The plurality of telescopic rods (36) are slidably connected in the fixed block (2), and each of the telescopic rods (36) is respectively sleeved with a compression spring (37), and the two ends of the plurality of compression springs (37) are respectively connected to the top block (35) and the fixed block (2).

8. A bending and forming device for connector terminals according to claim 7, characterized in that: The positioning mechanism also includes a conveying plate (38) mounted on the base (1), and a limiting plate (39) is respectively mounted on the conveying plate (38) and the receiving seat (34). When the terminal body (7) is on the conveying plate (38), two ends of the plurality of terminal bodies (7) are respectively slidably connected between the conveying plate (38) and the limiting plate (39); when the terminal body (7) is on the receiving seat (34), two ends of the plurality of terminal bodies (7) are respectively slidably connected between the receiving seat (34) and the limiting plate (39). The conveying plate (38) is slidably connected with a transverse seat (40), and the conveying plate (38) is provided with a plurality of movable members. A transverse cylinder (41) is fixedly provided on the delivery plate (38), and the protruding end of the transverse cylinder (41) is connected to the transverse seat (40). A lifting block (42) is slidably installed on the transverse seat (40), and two toggle rods (43) are installed on the lifting block (42). A plurality of toggle holes (44) are opened on each of the terminal bodies (7), and the distance between the two toggle rods (43) is an integer multiple of the distance between the two toggle holes (44). A vertical cylinder (45) is fixedly provided on the transverse seat (40), and the protruding end of the vertical cylinder (45) is connected to the lifting block (42).

9. A bending and forming device for connector terminals according to claim 8, characterized in that: The base (1) is provided with a closed cylinder (46), and a rocking arm (47) is rotatably provided on the receiving seat (34), the extended end of the closed cylinder (46) is connected to one end of the rocking arm (47), the other end of the rocking arm (47) is provided with a connecting spring (48), the other end of the connecting spring (48) is provided with a closed block (49), an inner nest (50) is provided on the side wall of the receiving seat (34), one side of the closed block (49) is slidably connected to the inner nest (50), and the other side of the closed block (49) is slidably connected to the side walls of the receiving seat (34) and the limiting plate (39).

10. A method for bending and forming a connector terminal, using a device for bending and forming a connector terminal according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1 is the first stage of feeding and positioning the terminal body (7). The operator places multiple terminal bodies (7) between the conveying plate (38) and the limiting plate (39), and accurately limits the terminal body (7) through the limiting plate (39) to ensure that the terminal body (7) can only move laterally along the conveying plate (38). The vertical cylinder (45) drives the lifting block (42) to move downward, and the two toggle rods (43) move downward synchronously and are inserted into the toggle hole (44) of the terminal. Step 2 is the terminal body (7) fixing and bending stage, the transverse cylinder (41) drives the transverse seat (40) to move to the left, multiple terminal bodies (7) are close and fit together, the bending cylinder (31) drives the synchronous plate (32) to move downward, the fixed block (2) is first pressed on the terminal body (7), and the guide rod (6) is synchronously inserted into the positioning hole (8) to achieve precise positioning of the terminal body (7), and then the bending plate (33) is pressed on the terminal body (7), and the terminal body (7) is bent along the receiving seat (34), and the compression spring (37) provides a stable clamping force. The last part of step three is the terminal body (7) discharge and reset stage. After loosening the bending plate (33) and the fixing block (2), the transverse cylinder (41) moves back and forth to discharge the bent terminal body (7). The lubrication mechanism works at the same time to achieve real-time lubrication of key components through the oil outlet pipe (3) and the opening and closing disk (23). The pressure rod (9) and the vertical rod (11) are automatically reset to prepare for the next processing, completing the entire terminal body (7) bending and forming cycle.

Images