A needle terminal stripping and pressing integrated device

Abstract

This invention belongs to the field of terminal crimping technology, and specifically relates to an integrated device for stripping and crimping pin-type terminals. It includes a wire stripping mechanism comprising a movable wire stripper and a fixed wire stripper forming a space for the cable to be stripped; a conductor mechanism comprising rollers and a conductor tube, the conductor tube being aligned with the space, and the cable to be stripped being driven through the conductor tube into or out of the space by the rollers; a crimping mechanism; a terminal limiting mechanism for placing the pin-type terminal to be crimped and allowing its crimping portion to enter the crimping mechanism, the placed pin-type terminal being coaxial with the conductor tube; and a shifting mechanism equipped with a first drive that sequentially drives the wire stripping mechanism and the crimping mechanism by changing the drive direction. This invention features a shifting mechanism, which allows the sequential operation of the wire stripping mechanism and the crimping mechanism to be achieved simply by changing the drive direction, eliminating the need for separate drives for the wire stripping mechanism and the crimping mechanism, thus improving drive utilization.

Description

Technical Field

[0001] This invention belongs to the field of terminal crimping technology, and specifically relates to an integrated device for stripping and crimping pin-type terminals. Background Technology

[0002] Pin-type terminals are commonly used insulated wiring terminals. They consist of two sections: a thinner crimping section and a thicker section covered with insulating plastic. The process of crimping the cable into the pin-type terminal involves stripping the cable sheath with wire strippers, inserting the cable into the terminal, crimping the pin-type terminal with crimping pliers, and finally cutting off any excess cable core with diagonal pliers. This process is tedious and inefficient.

[0003] To improve crimping efficiency, those skilled in the art employ automatic wire stripping and crimping mechanisms. Since the cable needs to be stripped before entering the crimping mechanism, the stripping and crimping mechanisms operate sequentially. To ensure smooth operation, each mechanism requires a separate motor for individual drive. Because of this sequential operation, when one motor is working, the other is paused, resulting in low utilization of individual motors and increased costs and device size. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated pin-type terminal stripping and crimping device to solve the problem of low motor utilization in existing technologies where the wire stripping mechanism and crimping mechanism are configured separately. To achieve the above objective, this invention provides the following technical solution:

[0005] This invention provides an integrated device for stripping and crimping pin-type terminals, comprising:

[0006] The wire stripping mechanism includes a movable wire stripper and a fixed wire stripper, which together form a receiving space for the cable to be stripped;

[0007] A wire guiding mechanism includes a pair of rollers and a wire guide tube, the wire guide tube being aligned with the receiving space, and the wire to be stripped being driven through the wire guide tube into or out of the receiving space by the pair of rollers;

[0008] Crimping mechanism;

[0009] A terminal limiting mechanism is used to place the pin-type terminal to be crimped and allow its crimping part to enter the crimping mechanism. After placement, the pin-type terminal to be crimped is coaxial with the conduit.

[0010] The shifting mechanism is equipped with a first drive and sequentially drives the wire stripping mechanism and the crimping mechanism by changing the drive direction.

[0011] As a further technical solution, the pressing mechanism adopts a mechanical iris structure.

[0012] As a further technical solution, the roller pair includes a driving roller and a driven roller connected to each other by a first transmission mechanism. The driving roller is equipped with a second drive, which drives the driven roller to move through the first transmission mechanism. The driven roller is equipped with a third drive to move away from or closer to the driving roller.

[0013] As a further technical solution, the wire stripping mechanism also includes a first mounting base and a second mounting base. The movable wire stripper is mounted on the first mounting base, and the fixed wire stripper is mounted on the second mounting base. The first mounting base can move up and down.

[0014] As a further technical solution, two sets of guide components are provided between the first mounting base and the second mounting base, and are located on both sides of the moving direction of the movable wire stripper.

[0015] As a further technical solution, each of the guide components includes a movable rack disposed on the first mounting base and a fixed rack disposed on the second mounting base, wherein the movable rack and the fixed rack are engaged by gears.

[0016] As a further technical solution, the terminal limiting mechanism includes a slot and a limiting ring. The slot is used to place the pin-type terminal to be pressed, and the limiting ring allows the pressing portion of the pin-type terminal to be pressed to extend out of the slot.

[0017] As a further technical solution, the shifting mechanism also includes a second transmission mechanism and a third transmission mechanism. The second transmission mechanism is connected to the first drive and the crimping mechanism, and the third transmission mechanism is connected to the first drive and the wire stripping mechanism.

[0018] As a further technical solution, the first drive output end is equipped with a half-tooth bevel gear, and the input ends of the second transmission mechanism and the third transmission mechanism are both equipped with bevel gears that mesh with the half-tooth bevel gear.

[0019] As a further technical solution, the first drive is a servo motor.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) By setting a shifting mechanism, the present invention can realize the sequential operation of the wire stripping mechanism and the crimping mechanism by changing the driving direction, thereby realizing the integration of wire stripping and crimping with pin terminals. It does not require separate driving for the wire stripping mechanism and the crimping mechanism, thus improving the utilization rate of the drive.

[0022] (2) In the shifting mechanism of the present invention, the first bevel gear and the second bevel gear are both full-tooth gears. By meshing the half-tooth bevel gear with the first bevel gear and the second bevel gear respectively, the reversal of the first driving power transmission can be realized.

[0023] (3) The wire conductor mechanism of the present invention includes a pair of rollers and a wire tube. The wire tube is aligned with the receiving space. The wire tube drives the cable to be stripped to pass through the wire tube and enter or exit the receiving space. The wire tube can restrict the movement path of the cable and prevent it from deviating during the movement, which would cause it to fail to accurately enter the receiving space for cutting the cable sheath. Attached Figure Description

[0024] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute a limitation thereof. It should also be understood that these drawings are for simplicity and clarity and are not necessarily drawn to scale. The invention will now be described and explained with additional features and details using the drawings, wherein:

[0025] Figure 1 A schematic diagram of the integrated peeling and pressing device in an embodiment of the present invention is shown;

[0026] Figure 2 A schematic diagram of the integrated crimping and stripping device in an embodiment of the present invention is shown, but the crimping mechanism and the wire stripping mechanism are not shown.

[0027] Figure 3 A schematic diagram of the wire stripping mechanism in an embodiment of the present invention is shown;

[0028] Figure 4 A schematic diagram of the crimping mechanism in an embodiment of the present invention is shown;

[0029] Figure 5 A schematic diagram of the terminal limiting mechanism in an embodiment of the present invention is shown.

[0030] In the diagram: 1. Wire guiding mechanism; 11. Driven roller; 12. Driven roller; 13. Second motor; 14. Drive gear; 15. Driven gear; 16. Wire tube; 2. Wire stripping mechanism; 21. First mounting base; 22. Second mounting base; 23. Movable wire stripper; 24. Fixed rack; 25. Gear; 26. Movable rack; 27. Fixed wire stripper; 3. Terminal limiting mechanism; 31. Slot; 32. Limiting ring; 4. Crimping mechanism; 5. Gear shifting mechanism; 51. First motor; 52. Half-tooth bevel gear; 53. First bevel gear; 54. First transmission gear; 55. Second transmission gear; 56. Second bevel gear; 57. Third transmission gear; 58. Turbine; 59. Worm gear. Detailed Implementation

[0031] The technical solutions in typical embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figure 1 and Figure 2 As shown, this embodiment provides an integrated device for stripping and crimping pin-type terminals, including:

[0033] The wire stripping mechanism 2 includes a movable wire stripper 23 and a fixed wire stripper 27, and the two form a receiving space for the cable to be stripped;

[0034] The wire guide mechanism 1 includes a pair of rollers and a wire guide tube 16. The wire guide tube 16 is aligned with the receiving space, and the wire to be stripped is driven by the pair of rollers to pass through the wire guide tube 16 and enter or exit the receiving space.

[0035] Crimping mechanism 4;

[0036] Terminal limiting mechanism 3 places the pin-type terminal to be crimped and allows its crimping part to enter the crimping mechanism 4. After placement, the pin-type terminal to be crimped is coaxial with the wire tube 16.

[0037] The shifting mechanism 5 is equipped with a first drive and drives the wire stripping mechanism 2 and the crimping mechanism 4 to work respectively by changing the drive direction.

[0038] By setting up the shifting mechanism 5, the sequential operation of the wire stripping mechanism 2 and the crimping mechanism 4 can be achieved by changing the drive direction, thereby realizing the integration of wire stripping and crimping with pin terminals without the need for separate drives for the wire stripping mechanism 2 and the crimping mechanism 4. The design of the shifting mechanism completes the two actions with a single drive, making full use of the drive, reducing costs, and decreasing the size of the device.

[0039] In this embodiment, the shifting mechanism 5 further includes a second transmission mechanism and a third transmission mechanism. The second transmission mechanism connects the first drive and the crimping mechanism 4, and the third transmission mechanism connects the first drive and the wire stripping mechanism 2. The transmission chain of the shifting mechanism is divided into two paths: one path drives the crimping mechanism 4, and the other path drives the wire stripping mechanism 2. Under the drive of the first drive, the crimping mechanism 4 and the wire stripping mechanism 2 operate sequentially.

[0040] In this embodiment, the first drive is a first motor 51, which is a servo motor. The power transmission can be changed by rotating the first motor 51 in both directions. If the first motor 51 rotates in the forward direction, it can drive the wire stripping mechanism 2 to move. Then, if the first motor 51 rotates in the reverse direction, it can drive the crimping mechanism 4 to move.

[0041] The first drive output end is equipped with a half-tooth bevel gear 52, and the input ends of the second and third transmission mechanisms are both equipped with bevel gears that mesh with the half-tooth bevel gear 52. Specifically, the second transmission mechanism includes a first bevel gear 53, a first transmission gear 54 coaxial with the first bevel gear 53, and a second transmission gear 55 meshing with the first transmission gear 54. The second transmission gear 55 drives the pressing mechanism 4 to operate. The third transmission mechanism includes a second bevel gear 56 and a third transmission gear 57 coaxial with the second bevel gear 56. The third transmission gear 57 drives the turbine 58 to move. It can be understood that a gear cannot directly drive the turbine, so a gear coaxial with the turbine is provided. This gear meshes with the third transmission gear 57 to achieve the purpose of driving the turbine to rotate. The turbine 58 drives the worm gear 59 to move up and down. In traditional worm gear systems, the worm is the driving member and the turbine is the driven member. However, the worm gear mechanism in this embodiment is not self-locking, so the turbine can drive the worm to move. This structure belongs to the prior art, and its detailed structural construction will not be described in detail here.

[0042] Both the first bevel gear 53 and the second bevel gear 56 are full-tooth gears. By meshing the half-tooth bevel gear 52 with the first bevel gear 53 and the second bevel gear 56 respectively, the switching of the drive for the wire stripping mechanism 2 and the pressing structure 4 can be realized.

[0043] like Figure 3 As shown, the wire stripping mechanism 2 includes a movable wire stripper 23 and a fixed wire stripper 27, which together form a receiving space for the cable to be stripped, i.e. a cutting space. Both the movable wire stripper 23 and the fixed wire stripper 27 have V-shaped grooves. When the two wire strippers are working, the cable is clamped in the V-shaped grooves, which can cut open the outer wrapping layer of the cable to expose the conductor.

[0044] The wire stripping mechanism 2 also includes a first mounting base 21 and a second mounting base 22. A movable wire stripper 23 is mounted on the first mounting base 21, and a fixed wire stripper 23 is mounted on the second mounting base 22. The first mounting base 21 can move up and down, while the second mounting base 22 is fixedly set. The worm gear 59 is connected to the first mounting base 21 and, driven by the first motor 51, drives the first mounting base 21 and the movable wire stripper 23 to move up or down. Moving up disengages the stripper, while moving down performs the stripping.

[0045] To ensure the alignment of the movable wire stripper 23 and the fixed wire stripper 27 during cutting, two sets of guide components are provided between the first mounting base 21 and the second mounting base 22, and are located on both sides of the movable wire stripper 23 in the direction of movement. This ensures that the movable wire stripper 23 remains aligned with the fixed wire stripper 27 during its up-and-down movement, effectively preventing damage to the cable.

[0046] In this embodiment, each set of guide components includes a movable rack 26 disposed on the first mounting base 21 and a fixed rack 24 disposed on the second mounting base 22. The movable rack 26 and the fixed rack 24 are meshed by a gear 25. The cooperation of the two sets of guide components enables good guidance.

[0047] The wire stripping mechanism 1 includes rollers and a wire stripping tube 16. The wire stripping tube 16 is aligned with the receiving space. The rollers drive the cable to be stripped through the wire stripping tube 16 and into or out of the receiving space. The cable to be stripped moves into the receiving space of the wire stripping mechanism 2 under the conveying of the rollers. The wire stripping tube 16 is fixedly set and aligned with the receiving space, which can guide the cable and prevent the cable from being deviated during the conveying process, thus preventing the cable from entering the receiving space for cutting the cable sheath.

[0048] The roller assembly includes a driving roller 12 and a driven roller 11 connected by a first transmission mechanism. The driving roller 12 is equipped with a second drive, which drives the driven roller 11 to move via the first transmission mechanism. The driven roller 11 is equipped with a third drive to move it away from or towards the driving roller 12. The second drive is a second motor 13, on the output shaft of which is mounted a driving gear 14 and the driving roller 12. The driven roller 11 is coaxially mounted with a driven gear 15. The first transmission mechanism includes the driving gear 14 and the driven gear 15. The second motor 13 drives the driven roller 11 to move via the first transmission mechanism, thus completing the cable conveying action with the cooperation of the driving roller 12.

[0049] The shaft where the driven roller 11 is located is equipped with a third drive, which is a push rod motor. A vertical slide rail is provided on the mounting shaft of the driven roller 11. Under the drive of the push rod motor, the driven roller 11 can move away from or closer to the driving roller 12.

[0050] like Figure 5 As shown, the terminal limiting mechanism 3 includes a slot 31 and a limiting ring 32. The slot 31 is used to place the pin-type terminal to be crimped, and the limiting ring 32 allows the crimping portion of the pin-type terminal to extend out of the slot 31. The inner diameter of the slot 31 is adapted to the thicker section of the pin-type terminal, and the inner diameter of the limiting ring 32 is smaller than the thicker section of the pin-type terminal, but allows the crimping portion to extend out, thereby locking the pin-type terminal.

[0051] A fixed conduit can also be provided between the terminal limiting mechanism 3 and the wire stripping mechanism 2 to guide the stripped cable into the pin terminal.

[0052] The terminal limiting mechanism 3 can be replaced according to different cable sizes. The slot 31 is used to store pin-type terminals, and the limiting ring 32 restricts the passage of the thicker section of the pin-type terminal while allowing the thinner section to pass through, thus achieving precise crimping of the effective crimping portion of the terminal. The crimping portion of the pin-type terminal is its thinner section, while the thicker section is covered with insulating plastic.

[0053] like Figure 4 As shown, the crimping mechanism 4 adopts a mechanical iris structure, which is simple in structure and presses the wire lugs at multiple angles, making the terminal crimping more secure. The rotation of the second transmission gear 55 drives the iris structure to rotate and press it towards the center. The mechanical iris structure is existing technology, and its specific working principle and structure will not be described in detail here.

[0054] It should be noted that the structures that need to be fixed in this embodiment are fixed by a shell, bracket, or plate. In order to clearly show the important structures, the shell, bracket, plate, and other structures have been omitted in the accompanying drawings.

[0055] The working principle of this embodiment is as follows: First, the terminal limiting mechanism 3 of the corresponding size is replaced according to the different cable models, and the cable is inserted into the conductor tube 16. The system is started, the push rod motor pushes the driven roller 11 to press the cable tightly, and the second motor 13 rotates forward to drive the driving roller 12 and the driven roller 11 to rotate, so that the cable moves forward and moves through the conductor tube 16 to the wire stripping mechanism 2. The second motor 13 stops rotating, and the first motor 51 in the shifting mechanism 5 reverses to drive the wire stripping mechanism 2 to operate. When the wire stripper cuts the wire insulation, the first motor 51 stops rotating, and the second motor 13 reverses to pull out the cable. The wire stripper strips the wire insulation, and the second motor 13 stops rotating. The first motor 51 returns to its original position. The second motor 13 continues to rotate forward to send the stripped cable to the terminal limiting mechanism 3 and insert it into the pin-type terminal stored in the slot 31. The second motor 13 continues to rotate to drive the pin-type terminal until the thicker part of the terminal is stuck on the limiting ring 32. The first motor 51 rotates forward to drive the wire pressing mechanism 4 to press the crimping part tightly. The first motor 51 reverses again to its original position. Simultaneously, the push rod motor returns to its original position and pulls open the driven roller 11. Thus, one system movement ends, and the stripping and crimping process of the cable is completed.

[0056] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A pin-type terminal stripping and crimping integrated device, characterized in that, include: The wire stripping mechanism includes a movable wire stripper and a fixed wire stripper, which together form a receiving space for the cable to be stripped; A wire guiding mechanism includes a pair of rollers and a wire guide tube, the wire guide tube being aligned with the receiving space, and the wire to be stripped being driven through the wire guide tube into or out of the receiving space by the pair of rollers; Crimping mechanism; A terminal limiting mechanism is used to place the pin-type terminal to be crimped and allow its crimping part to enter the crimping mechanism. After placement, the pin-type terminal to be crimped is coaxial with the conduit. The shifting mechanism is equipped with a first drive and sequentially drives the wire stripping mechanism and the crimping mechanism by changing the drive direction; the shifting mechanism also includes a second transmission mechanism and a third transmission mechanism; the output end of the first drive is equipped with a half-tooth bevel gear, and the input ends of the second transmission mechanism and the third transmission mechanism are both equipped with bevel gears and mesh with the half-tooth bevel gear; the second transmission mechanism connects the first drive and the crimping mechanism, and the third transmission mechanism connects the first drive and the wire stripping mechanism.

2. The integrated pin-type terminal stripping and crimping device as described in claim 1, characterized in that, The pressing mechanism adopts a mechanical iris structure.

3. The integrated pin-type terminal stripping and crimping device as described in claim 1, characterized in that, The roller pair includes a driving roller and a driven roller connected to each other by a first transmission mechanism. The driving roller is equipped with a second drive, which drives the driven roller to move through the first transmission mechanism. The driven roller is equipped with a third drive to move away from or closer to the driving roller.

4. The integrated pin-type terminal stripping and crimping device as described in claim 1, characterized in that, The wire stripping mechanism further includes a first mounting base and a second mounting base. The movable wire stripper is mounted on the first mounting base, and the fixed wire stripper is mounted on the second mounting base. The first mounting base can move up and down.

5. The integrated pin-type terminal stripping and crimping device as described in claim 4, characterized in that, Two sets of guide components are provided between the first mounting base and the second mounting base, and are located on both sides of the moving direction of the movable wire stripper.

6. The integrated pin-type terminal stripping and crimping device as described in claim 5, characterized in that, Each guide assembly includes a movable rack disposed on the first mounting base and a fixed rack disposed on the second mounting base, wherein the movable rack and the fixed rack are engaged by gears.

7. The integrated pin-type terminal stripping and crimping device as described in claim 1, characterized in that, The terminal limiting mechanism includes a slot and a limiting ring. The slot is used to place the pin-type terminal to be pressed, and the limiting ring allows the pressing portion of the pin-type terminal to extend out of the slot.

8. The integrated pin-type terminal stripping and crimping device as described in claim 1, characterized in that, The first drive is a servo motor.

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