Terminal automatic crimping device

Abstract

The application discloses a kind of terminal automatic crimping devices, it is related to terminal crimping equipment technical field;The device includes pedestal, positioning frame, crimping table, press knife storage rack, material belt conveying mechanism, quick-return adjusting mechanism and driving mechanism;Crimping table is equipped with crimping wheel, press knife storage rack is slidably connected with terminal press knife, and terminal press knife tail end is equipped with the guide block that is rolled with crimping wheel adaptation;Driving mechanism simultaneously drives crimping table rotation and quick-return adjusting mechanism movement, realizes the mechanical synchronization of crimping action and material belt feeding;Quick-return adjusting mechanism is configured to continuously change the single feeding stroke of material belt conveying mechanism during equipment operation;With modular quick-change press knife and crimping wheel, the quick change of different specifications terminals is realized;The application solves the problems of large synchronization error, complex changeover debugging and large impact load of traditional terminal crimping machine.

Description

Technical Field

[0001] This invention relates to the field of terminal crimping equipment technology, specifically to an automatic terminal crimping device. Background Technology

[0002] Terminal crimping is a core process in wire harness manufacturing, widely used in automotive electronics, home appliance manufacturing, aerospace, and communication equipment. This process uses mechanical pressure to firmly connect metal terminals to the stripped wire ends, forming a reliable electrical and mechanical connection. As wire harness production develops towards higher cycle times, more diverse varieties, and smaller batches, higher requirements are placed on the crimping accuracy, changeover efficiency, and operational stability of terminal crimping equipment. Currently, mainstream terminal crimping equipment mainly adopts pneumatic, hydraulic, or servo motor drive methods, and some high-end equipment has begun to introduce cam mechanisms to achieve coordinated crimping and feeding actions. However, existing terminal crimping devices still have the following technical shortcomings: 1. The crimping action and the material feeding are mostly controlled independently by dual servo motors. The timing between the two depends on electrical synchronization, which is easily affected by factors such as signal delay, motor step loss, and interference, resulting in crimping position deviation or terminal damage, i.e., there is a problem of large synchronization error. 2. When changing to different specifications of terminals, it is necessary to manually change the pressure knife, adjust the feeding stroke and crimping depth. The changeover and debugging is time-consuming and complicated. In addition, the equipment cannot store the process parameters of different terminals, making it difficult to achieve rapid changeover. 3. Traditional servo crimping is a rigid impact, and sudden changes in crimping force can easily damage terminals or wires, making it difficult to guarantee consistent crimping depth. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automatic terminal crimping device, which solves the technical problems of existing devices.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An automatic terminal crimping device includes a base with a positioning frame fixedly connected above it, and further includes: a crimping table rotatably connected above the positioning frame, wherein a plurality of crimping wheels are connected to the crimping table, the axial direction of the crimping wheels being perpendicular to the surface of the crimping table, and a transmission clearance groove being formed at the center of both the positioning frame and the crimping table; and a crimping knife storage frame slidably connected above the base along the axial direction of the transmission clearance groove, wherein a plurality of terminal crimping knives are slidably connected radially along the transmission clearance groove within the crimping knife storage frame, and a guide block is fixedly connected to the tail end of each terminal crimping knife, the guide block being away from the terminal crimping knife. One end of the device has an arc surface adapted to the rolling of the crimping wheel; a pressure seat is fixedly installed on the upper wall of the positioning frame and is positioned opposite to the terminal crimping knife; a material belt conveying mechanism is slidably connected between the pressure seat and the terminal crimping knife; a quick-return adjustment mechanism has its output end slidably adapted to the material belt conveying mechanism and pivotally connected to the upper wall of the base; the quick-return adjustment mechanism is configured to continuously change the single feeding stroke of the material belt conveying mechanism during equipment operation; a drive mechanism is located between the input end of the quick-return adjustment mechanism and the crimping table, and is used to simultaneously drive the crimping table to rotate and the quick-return adjustment mechanism to move.

[0005] Preferably, a plurality of the pressing wheels are evenly distributed around the circumference of the pressing table; a wheel rod is rotatably connected to the pressing wheel, and a pressing slider is fixedly installed on the lower wall of the wheel rod; a plurality of pressing positioning grooves adapted to the sliding of the pressing slider are provided on the upper wall of the pressing table; the pressing positioning grooves and the pressing slider are fixedly connected by a detachable locking structure.

[0006] Preferably, the locking structure includes: a limiting pin hole formed in the pressing and positioning groove, a stepped pin hole formed on the wheel rod and corresponding to the limiting pin hole, and a stepped limiting pin slidably connected in the stepped pin hole, wherein the bottom wall of the stepped pin hole is magnetic, and the stepped limiting pin is magnetically connected to the bottom wall of the stepped pin hole.

[0007] Preferably, the lower wall of the pressing table is fixedly installed with concentrically distributed bevel gear seat rings, helical gear seat rings, and T-shaped ring rails from the inside to the outside, and the inner ring of the bevel gear seat rings coincides with the transmission clearance groove; the driving mechanism includes: a drive motor, which is fixedly installed on the upper wall of the positioning frame through a frame, and a drive bevel gear is fixedly installed on its driving end, and the drive bevel gear meshes with the bevel gear seat rings; a guide seat, which is fixedly installed on the upper wall of the positioning frame and slides with the T-shaped ring rails.

[0008] Preferably, the quick-return adjustment mechanism includes: a gearbox, fixedly connected to a positioning frame, with a driven gear meshing with a helical gear seat fixedly installed at the input end of the gearbox, a drive disk fixedly installed at the output end of the gearbox, and a lead screw adapter fixedly installed on the lower wall of the drive disk; an electric slip ring, with its positioning end fixedly connected to the output end of the gearbox and its connecting end fixedly connected to the drive disk; an adjustment motor, fixedly installed on the lower wall of the drive disk and electrically connected to the electric slip ring, with an adjustment lead screw fixedly installed at the output end of the adjustment motor, the adjustment lead screw rotatably adapted to the lead screw adapter, two guide rods fixedly installed inside the lead screw adapter, the two guide rods being symmetrically distributed along the adjustment lead screw; and an adjustment sleeve, with a threaded sleeve meshing with the adjustment lead screw fixedly installed at its center, and an adjustment slider hinged to the lower wall of the adjustment sleeve.

[0009] Preferably, a T-shaped support frame is fixedly installed on the base, and a top rod is slidably connected to the lower wall of the T-shaped support frame. A drive wheel is rotatably connected to the driving end of the top rod. A driven connecting rod is hinged on the base, and a quick-return connecting rod that is adapted to slide on the adjusting slider is sleeved on the adjusting slider. One end of the quick-return connecting rod is hinged to the top rod, and the other end is hinged to the driven connecting rod.

[0010] Preferably, a wire conveying frame is fixedly installed on the upper wall of the T-shaped support frame; the material conveying mechanism includes: a material conveying frame, which has a feeding clearance groove opened along the height direction inside, and feeding limiting grooves opened on both sides of the feeding clearance groove; feeding limiting blocks that are slidably adapted to the feeding limiting grooves are fixedly installed on both sides of the wire conveying frame; an inclined guide groove adapted to the rolling of the drive wheel is opened at the connecting end of the lower wall of the material conveying frame; a material guide frame, which is fixedly installed at the end of the material conveying frame away from the wire conveying frame; an adjustment groove is opened on the material guide frame; a hinge seat fixedly connected to the material guide frame is provided in the adjustment groove; a material gripper, whose clamping end is located in the adjustment groove; the middle end of the material gripper is rotatably connected to the hinge seat; a return spring is fixedly connected between the tail end of the material gripper and the material guide frame; the return spring is used to push the material gripper to the upper end of the adjustment groove.

[0011] Preferably, the transmission clearance groove is provided with two guide rods fixedly connected to the base, the two sides of the pressure knife storage frame are fixedly installed with sliding sleeves that are adapted to slide with the guide rods, the base is fixedly installed with a servo electric actuator, and the drive end of the servo electric actuator is fixedly connected to the lower wall of the pressure knife storage frame.

[0012] Preferably, the pressing knife storage frame has a plurality of pressing grooves along the axial direction of the transmission clearance groove, and the top and bottom walls of the pressing grooves are provided with pressing limiting grooves. The upper and lower walls of the guide block are fixedly installed with pressing limiting blocks that are slidably adapted to the pressing limiting grooves. The guide block and the pressing groove are fixedly connected by pressing springs.

[0013] This invention provides an automatic terminal crimping device, which has the following advantages: In this invention, the pressing action and the material feeding are driven by the same drive motor through a double gear ring, and the timing relationship is guaranteed by the rigidity of the mechanical structure, which greatly reduces the synchronization problems such as electrical delay and step loss in traditional dual servo systems.

[0014] This invention uses a gearbox to adjust the overall cycle speed and an adjustable lead screw to dynamically adjust the quick return stroke and quick return ratio during operation. Combined with a modular quick-change crimping knife and a magnetic quick-change crimping wheel, it enables quick replacement of terminals of different specifications. The adjustment system can store a parameter library of different terminal models, enabling one-click type change.

[0015] In this invention, the pressing wheel and the guide block make rolling contact, and the pressing force presents a smooth curve of gradual increase, constant pressure, and gradual decrease. There is no impact load of traditional servo pressing, and the consistency of pressing depth is far superior to that of servo position control. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the driving mechanism of the present invention; Figure 4 This is a schematic diagram of the connection structure of the crimping platform and the guide seat of the present invention; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the quick-return adjustment mechanism of the present invention; Figure 7 This is a schematic diagram showing the connection between the quick-return adjustment mechanism and the belt conveyor mechanism of the present invention; Figure 8 This is a schematic diagram of the connection structure of the gearbox, driven gear, and regulating motor of the present invention. Figure 9 This is an exploded structural diagram of the material conveying mechanism of the present invention; Figure 10 for Figure 9 A magnified view of a section at point B.

[0017] In the diagram: 1. Base; 2. Positioning frame; 3. Crimping table; 4. Crimping wheel; 5. Transmission clearance groove; 6. Crimping knife storage rack; 7. Terminal crimping knife; 8. Guide block; 9. Crimping seat; 10. Bevel gear seat; 11. Helical gear seat; 12. T-shaped ring rail; 13. Drive motor; 14. Drive bevel gear; 15. Guide seat; 16. Gearbox; 17. Driven gear; 18. Drive disc; 19. Lead screw adapter seat; 20. Electric slip ring; 21. Adjusting motor; 22. Adjusting lead screw; 23. Guide light rod; 24. Adjusting sleeve; 25. Screw sleeve; 26. Adjusting slider; 27. T-shaped support frame; 28. Top rod; 29. ​​Drive wheel; 30. Driven link; 31. Quick-return link; 32. Wire conveyor frame; 33. Belt conveyor frame; 34. Feed clearance groove; 35. Feed limit groove; 36. Feed limit block; 37. Inclined guide groove; 38. Belt guide frame; 39. Adjustment groove; 40. Hinge seat; 41. Belt gripper; 42. Return spring; 43. Guide rod; 44. Sliding sleeve; 45. Servo electric actuator; 46. Pressing slide groove; 47. Pressing limit groove; 48. Pressing limit block; 49. Pressing spring; 50. Wheel rod; 51. Pressing slider; 52. Pressing positioning groove; 53. Limit pin hole; 54. Stepped pin hole; 55. Stepped limit pin. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1-10 As shown, the present invention discloses an automatic terminal crimping device, including a base 1, a positioning frame 2 fixedly connected above the base 1 by multiple columns; a crimping table 3 rotatably connected above the positioning frame 2, and a number of evenly distributed crimping rollers 4 detachably connected to the upper wall of the crimping table 3, the axial direction of the crimping rollers 4 being perpendicular to the surface of the crimping table 3, the specific number of crimping rollers 4 being determined by the system according to the production cycle and crimping accuracy requirements; both the positioning frame 2 and the crimping table 3 have coaxial transmission clearance grooves 5 at their centers to avoid the conveying path of wires and material strips.

[0020] The pressure knife storage frame 6 is slidably connected to the base 1 above the transmission clearance groove 5 via guide rods 43. Two guide rods 43 are fixedly connected to the base 1 inside the transmission clearance groove 5. Straight sliding sleeves 44 that are slidably adapted to the guide rods 43 are fixedly installed on both sides of the pressure knife storage frame 6. A servo electric actuator 45 is fixedly installed on the base 1. The drive end of the servo electric actuator 45 is fixedly connected to the lower wall of the pressure knife storage frame 6 and is used to adjust the height of the pressure knife storage frame 6. Multiple terminal pressure knives 7 are arranged vertically inside the pressure knife storage frame 6. The system automatically controls the servo electric actuator 45 to adjust the corresponding terminal pressure knives 7 to the working height opposite to the pressure base 9 according to the terminal model currently being produced. Several terminal pressing knives 7 are radially slidably connected within the pressing knife storage frame 6 along the transmission clearance groove 5. The tail end of each terminal pressing knife 7 is fixedly connected to a guide block 8 by bolts. The end of the guide block 8 away from the pressing knife has an arc surface adapted to the rolling of the pressing wheel 4. Several pressing grooves 46 are axially formed along the transmission clearance groove 5 in the pressing knife storage frame 6. The number of pressing grooves 46 matches the number of terminal pressing knives 7 and can be set according to actual production needs. The top and bottom walls of the pressing grooves 46 are provided with pressing limiting grooves 47. The upper and lower walls of the guide block 8 are fixedly installed with pressing limiting blocks 48 that are slidably adapted to the pressing limiting grooves 47. The guide block 8 and the pressing grooves 46 are fixedly connected by pressing springs 49. A pressing seat 9 is fixedly installed on the upper wall of the positioning frame 2. The pressing seat 9 is positioned opposite to the terminal pressing knife 7.

[0021] The lower wall of the pressing table 3 is bolted with concentrically distributed bevel gear seat ring 10, helical gear seat ring 11 and T-shaped ring rail 12. The inner ring of the bevel gear seat ring 10 coincides with the transmission clearance groove 5. The drive mechanism includes a drive motor 13 and a guide seat 15. The drive motor 13 is fixedly mounted on the upper wall of the positioning frame 2 through the frame. A drive bevel gear 14 is fixedly mounted on its drive end. The drive bevel gear 14 meshes with the bevel gear seat ring 10. The guide seat 15 is fixedly mounted on the upper wall of the positioning frame 2 and slides with the T-shaped ring rail 12.

[0022] The quick-return adjustment mechanism includes a gearbox 16, an electric slip ring 20, an adjustment motor 21, and an adjustment sleeve 24. The gearbox 16 is fixedly connected to the positioning frame 2, and its input end is fixedly installed with a driven gear 17 that meshes with the helical gear seat ring 11, and its output end is fixedly installed with a drive disc 18. The electric slip ring 20 adopts a hollow shaft structure, and its stator end is fixedly connected to the housing of the gearbox 16, and its rotor end is coaxially fixedly connected to the drive disc 18. The electric slip ring 20 is provided with at least 6 channels, including 2 power channels, 2 control signal channels, and 2 spare channels.

[0023] A lead screw adapter 19 is fixedly installed on the lower wall of the drive disk 18. An adjusting motor 21 is fixedly installed on the lower wall of the drive disk 18 and is electrically connected to an electric slip ring 20. An adjusting lead screw 22 is fixedly installed at the output end of the adjusting motor 21. The adjusting lead screw 22 is rotatably adapted to the lead screw adapter 19. Two guide rods 23 are fixedly installed inside the lead screw adapter 19. The two guide rods 23 are symmetrically distributed along the adjusting lead screw 22. A threaded sleeve 25 that meshes with the adjusting lead screw 22 is fixedly installed at the center of the adjusting sleeve 24. An adjusting slider 26 is hinged to the lower wall of the adjusting sleeve 24 through a needle roller bearing. After the drive disk 18 is assembled, it is subjected to G2.5 level dynamic balancing correction. Several balance block mounting holes are provided on the non-mounting surface of the drive disk 18 to add balance blocks to offset unbalanced mass.

[0024] A T-shaped support frame 27 is fixedly installed on the base 1. A top rod 28 is slidably connected to the lower wall of the T-shaped support frame 27 via a linear bearing. A drive wheel 29 is rotatably connected to the drive end of the top rod 28. A driven connecting rod 30 is hinged to the base 1 via a needle roller bearing. A quick-return connecting rod 31 is sleeved on the adjusting slider 26 and is adapted to slide the adjusting slider 26. One end of the quick-return connecting rod 31 is hinged to the top rod 28 via a needle roller bearing, and the other end is hinged to the driven connecting rod 30 via a needle roller bearing.

[0025] A wire conveyor frame 32 is fixedly installed on the upper wall of the T-shaped support frame 27; the material belt conveying mechanism includes a material belt conveyor frame 33, a material belt guide frame 38, and a material belt gripper 41; a feeding clearance groove 34 is provided along the height of the inner edge of the material belt conveyor frame 33, and feeding limiting grooves 35 are provided on both sides of the feeding clearance groove 34; feeding limiting blocks 36 that are slidably adapted to the feeding limiting grooves 35 are fixedly installed on both sides of the wire conveyor frame 32; an auxiliary spring is provided between the feeding limiting block 36 and the bottom wall of the feeding limiting groove 35, and the auxiliary spring always applies a downward thrust to the material belt conveyor frame 33, thereby ensuring that the drive wheel 29 and the upper wall of the inclined guide groove 37 always maintain close contact, eliminating transmission gaps and improving feeding accuracy; an inclined guide groove 37 that is adapted to the rolling of the drive wheel 29 is provided at the connecting end of the lower wall of the material belt conveyor frame 33.

[0026] The tape guide frame 38 is fixedly installed at the end of the tape conveyor frame 33 away from the wire conveyor frame 32. The tape guide frame 38 has an adjustment groove 39, and the adjustment groove 39 is provided with a hinge seat 40 fixedly connected to the tape guide frame 38. The clamping end of the tape gripper 41 is located in the adjustment groove 39, the middle end is rotatably connected to the hinge seat 40, and the tail end is fixedly connected to the tape guide frame 38 with a return spring 42. The return spring 42 is used to push the tape gripper 41 to the upper end of the adjustment groove 39. At least two sets of guide rollers are symmetrically installed on both sides of the tape guide frame 38 to limit the lateral sway of the terminal tape and improve the feeding accuracy.

[0027] A wheel rod 50 is rotatably connected to the pressing wheel 4; a pressing slider 51 is fixedly installed on the lower wall of the wheel rod 50; several pressing positioning grooves 52 are opened on the upper wall of the pressing platform 3 to slide and adapt to the pressing slider 51; a limit pin hole 53 is opened in the pressing positioning groove 52; a stepped pin hole 54 corresponding to the limit pin hole 53 is opened on the wheel rod 50; a stepped limit pin 55 is slidably connected in the stepped pin hole 54; a permanent magnet is embedded in the bottom wall of the stepped pin hole 54; the stepped limit pin 55 is magnetically connected to the permanent magnet to achieve quick assembly and disassembly.

[0028] This device also includes a safety protection and status monitoring system, which includes: a transparent plexiglass protective cover, which covers the pressing table 3 and the rotating parts, and is equipped with a safety interlock switch. The equipment will automatically stop when the protective cover is opened; a pressing force monitoring sensor, which is installed inside the pressing base 9 to monitor the pressing force in real time; a visual inspection sensor, which is installed above the material conveying path to detect the feeding position accuracy; and an electric slip ring wear monitoring sensor, which is installed inside the electric slip ring 20 to monitor the degree of brush wear. Any one of the above can be adopted from the existing technology.

[0029] The working process of this embodiment is as follows: The operator first selects the appropriate terminal crimping knife 7 according to the wire type. Then, the system automatically adjusts the gearbox 16 and the adjusting sleeve 24 to the appropriate gear according to the terminal crimping knife 7. Finally, the operator puts the appropriate number of crimping rollers 4 into the crimping positioning groove 52 according to the system prompts, and then starts the machine.

[0030] In the process of selecting the appropriate terminal crimping knife 7, the operator selects the corresponding terminal crimping knife 7 on the control panel. The servo electric actuator 45 automatically adjusts the height of the crimping knife storage frame 6 until the corresponding terminal crimping knife 7 corresponds to the crimping base 9. The gearbox 16 is adjusted so that the crimping rhythm of the terminal crimping knife 7 is consistent with the feeding rhythm of the material conveyor 33. The adjustment sleeve 24 is adjusted to match the position of the lead screw to a suitable rapid return feeding rhythm. That is, during the operation of the equipment, the electric slip ring 20 supplies power to the adjusting motor 21, drives the adjusting lead screw 22 to rotate, changes the eccentricity of the adjusting slider 26, and thus continuously changes the single feeding stroke of the material conveyor 33.

[0031] Specifically, after the wire is stripped by the wire stripping system, it is fed along the wire conveyor 32 and the feeding clearance groove 34 to the corresponding terminal insertion hole of the terminal feeding strip. Then the wire stripping system stops feeding the wire. The drive motor 13 drives the crimping table 3 to rotate at a constant speed through bevel gear meshing. The crimping table 3 drives the gearbox 16 through the helical gear seat 11 and the driven gear 17. The output end of the gearbox 16 drives the drive disc 18 to rotate. The power supply of the motor 21 is adjusted through the slip ring 20. The drive disc 18, through the quick return adjustment mechanism, makes the drive wheel 29 move along the inclined guide groove 3. 7. Linear reciprocating drive, the inclined guide groove 37 converts the drive of the material conveyor frame 33 into a movement trend along the height direction, and avoids interference of wire feeding through the feeding clearance groove 34; when the material conveyor frame 33 rises, the material conveyor claw 41 rotates outward around the hinge seat 40 in the adjusting groove 39 when passing through the tape hole of the terminal material tape, and the return spring 42 contracts to store energy; when the material conveyor frame 33 falls, after the material conveyor claw 41 enters the tape hole, the return spring 42 expands, pushes the material conveyor claw 41 to the upper end of the adjusting groove 39, and drives the terminal material tape to move downward by one crimping unit.

[0032] During crimping: The crimping table 3 drives the evenly distributed crimping rollers 4 to rotate. When the crimping rollers 4 contact the guide block 8, the arc surface ensures a uniform crimping speed. When the crimping rollers 4 pass the guide block 8, the crimping spring 49 contracts and stores energy, and the terminal crimping knife 7 performs crimping, pressing the wire and terminal onto the crimping base 9, separating the terminal from the material strip. After the crimping rollers 4 pass the guide block 8, the crimping spring 49 drives the terminal crimping knife 7 to reset. As the crimping table 3 rotates, the terminal material strip moves downwards again by one crimping unit, while the wire stripping system cuts, feeds, and strips the wire again, starting the next cycle.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic terminal crimping device, comprising a base (1) with a positioning frame (2) fixedly connected above it, characterized in that, Also includes: A pressing table (3) is rotatably connected above the positioning frame (2). Several pressing wheels (4) are connected on the pressing table (3). The axial direction of the pressing wheels (4) is perpendicular to the surface of the pressing table (3). A transmission clearance groove (5) is opened in the center of both the positioning frame (2) and the pressing table (3). A pressure knife storage frame (6) is slidably connected above the base (1) along the axial direction of the transmission clearance groove (5). Several terminal pressure knives (7) are slidably connected in the pressure knife storage frame (6) along the radial direction of the transmission clearance groove (5). A guide block (8) is fixedly connected to the tail end of the terminal pressure knife (7). The end of the guide block (8) away from the terminal pressure knife (7) is provided with an arc surface that is adapted to the rolling of the pressing wheel (4). The pressure seat (9) is fixedly installed on the upper wall of the positioning frame (2) and is positioned opposite to the terminal pressure knife (7); The material conveyor mechanism is slidably connected between the pressure base (9) and the terminal pressure knife (7); A quick-return adjustment mechanism, the output end of which is slidably adapted to the belt conveyor mechanism and pivotally connected to the upper wall of the base (1); the quick-return adjustment mechanism is configured to continuously change the single feeding stroke of the belt conveyor mechanism during equipment operation. The drive mechanism is located between the input end of the quick-return adjustment mechanism and the pressing table (3), and is used to simultaneously drive the pressing table (3) to rotate and the quick-return adjustment mechanism to move.

2. The automatic terminal crimping device according to claim 1, characterized in that, Several pressing wheels (4) are evenly distributed around the pressing platform (3); a wheel rod (50) is rotatably connected to the pressing wheel (4), and a pressing slider (51) is fixedly installed on the lower wall of the wheel rod (50). Several pressing positioning grooves (52) that are slidably adapted to the pressing slider (51) are provided on the upper wall of the pressing platform (3). The pressing positioning grooves (52) and the pressing slider (51) are fixedly connected by a detachable locking structure.

3. The automatic terminal crimping device according to claim 2, characterized in that, The locking structure includes: a limiting pin hole (53) opened in the pressing positioning groove (52), a stepped pin hole (54) opened on the wheel rod (50) and corresponding to the limiting pin hole (53), and a stepped limiting pin (55) slidably connected in the stepped pin hole (54). The bottom wall of the stepped pin hole (54) is magnetic, and the stepped limiting pin (55) is magnetically connected to the bottom wall of the stepped pin hole (54).

4. The automatic terminal crimping device according to claim 1, characterized in that, The lower wall of the pressing table (3) is fixedly installed with concentrically distributed bevel gear seat ring (10), helical gear seat ring (11) and T-shaped ring rail (12) from the inside to the outside. The inner ring of the bevel gear seat ring (10) coincides with the transmission clearance groove (5). The drive mechanism includes: The drive motor (13) is fixedly mounted on the upper wall of the positioning frame (2) via the frame, and a drive bevel gear (14) is fixedly mounted on its drive end. The drive bevel gear (14) meshes with the bevel gear seat (10). The guide seat (15) is fixedly installed on the upper wall of the positioning frame (2) and is slidably adapted to the T-shaped ring rail (12).

5. The automatic terminal crimping device according to claim 4, characterized in that, The quick-return adjustment mechanism includes: The gearbox (16) is fixedly connected to the positioning frame (2). The input end of the gearbox (16) is fixedly installed with a driven gear (17) that meshes with the helical gear seat (11). The output end of the gearbox (16) is fixedly installed with a drive disc (18). The lower wall of the drive disc (18) is fixedly installed with a lead screw adapter (19). An electric slip ring (20) has its positioning end fixedly connected to the output end of the gearbox (16) and its connecting end fixedly connected to the drive disc (18); An adjusting motor (21) is fixedly installed on the lower wall of the drive disk (18) and electrically connected to the slip ring (20). An adjusting screw (22) is fixedly installed at the output end of the adjusting motor (21). The adjusting screw (22) is rotatably adapted to the screw adapter (19). Two guide light rods (23) are fixedly installed inside the screw adapter (19). The two guide light rods (23) are symmetrically distributed along the adjusting screw (22). An adjusting sleeve (24) has a screw sleeve (25) fixedly installed at its center that meshes with the adjusting screw (22), and an adjusting slider (26) is hinged to the lower wall of the adjusting sleeve (24).

6. The automatic terminal crimping device according to claim 5, characterized in that, A T-shaped support frame (27) is fixedly installed on the base (1). A top rod (28) is slidably connected to the lower wall of the T-shaped support frame (27). A drive wheel (29) is rotatably connected to the drive end of the top rod (28). A driven connecting rod (30) is hinged on the base (1). A quick-return connecting rod (31) that is slidably adapted to the adjusting slider (26) is sleeved on the adjusting slider (26). One end of the quick-return connecting rod (31) is hinged to the top rod (28), and the other end is hinged to the driven connecting rod (30).

7. The automatic terminal crimping device according to claim 6, characterized in that, A wire conveying frame (32) is fixedly installed on the upper wall of the T-shaped support frame (27); the material belt conveying mechanism includes: The material conveyor frame (33) has a feeding clearance groove (34) opened in the height direction inside. The two side walls of the feeding clearance groove (34) are provided with feeding limit grooves (35). The two sides of the wire conveyor frame (32) are fixedly installed with feeding limit blocks (36) that are slidably adapted to the feeding limit grooves (35). The lower wall connection end of the material conveyor frame (33) is provided with an inclined guide groove (37) adapted to the rolling of the drive wheel (29). A material belt guide frame (38) is fixedly installed at one end of the material belt conveyor frame (33) away from the wire conveyor frame (32). The material belt guide frame (38) is provided with an adjustment groove (39). A hinge seat (40) is fixedly connected to the material belt guide frame (38) in the adjustment groove (39). The material strip clamp (41) has its clamping end located in the adjustment groove (39). The middle end of the material strip clamp (41) is rotatably connected to the hinge seat (40). A return spring (42) is fixedly connected between the tail end of the material strip clamp (41) and the material strip guide frame (38). The return spring (42) is used to push the material strip clamp (41) to the upper end of the adjustment groove (39).

8. The automatic terminal crimping device according to claim 1, characterized in that, The transmission clearance groove (5) is provided with two guide rods (43) that are fixedly connected to the base (1). The two sides of the pressure knife storage frame (6) are fixedly installed with sliding sleeves (44) that are slidably adapted to the guide rods (43). The base (1) is fixedly installed with a servo electric push rod (45). The driving end of the servo electric push rod (45) is fixedly connected to the lower wall of the pressure knife storage frame (6).

9. The automatic terminal crimping device according to claim 1, characterized in that, The pressure knife storage rack (6) has several pressing grooves (46) along the axial direction of the transmission clearance groove (5). The top and bottom walls of the pressing grooves (46) are provided with pressing limiting grooves (47). The upper and lower walls of the guide block (8) are fixedly installed with pressing limiting blocks (48) that are slidably adapted to the pressing limiting grooves (47). The guide block (8) and the pressing grooves (46) are fixedly connected by pressing springs (49).

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