A cable terminal crimping device that prevents punch misalignment

Abstract

The present application relates to a kind of cable terminal crimping devices for preventing stamping deviation, including seat frame, the seat frame is provided with guide mechanism and pressure head;Wherein, guide mechanism includes upper pressing piece and lower supporting piece, upper pressing piece is movably arranged along the height direction of lower supporting piece, after the rise of upper pressing piece, lower supporting piece opens for cable feeding, upper pressing piece and lower supporting piece cooperate to form wire channel and the guide channel adapted to the open end of metal terminal;Cable is placed in guide channel, and the stripping section of cable is placed in wire channel or outside wire channel, control cable moves along guide channel in the direction away from wire channel.This cable terminal crimping device for preventing stamping deviation, by setting upper pressing piece and lower supporting piece and other structures, realizes stripping section compression arrangement, accurate positioning of metal terminal and centring calibration of cable and terminal, reduces the difficulty of manual operation, improves the operation efficiency of cable terminal crimping.

Description

Technical Field

[0001] This invention relates to the field of cable terminal crimping devices, and particularly to a cable terminal crimping device for preventing crimping misalignment. Background Technology

[0002] A terminal is a component for connecting conductors. Terminals often refer to wiring terminals, also called wiring terminals. In the manufacturing process of cables, metal terminals are usually installed at the ends of the cables to facilitate the connection between the cables and electrical equipment.

[0003] Cables typically contain multiple conductors. After stripping the cables, these conductors naturally loosen and spread out due to the loss of their outer insulation, making it difficult to maintain a neat bundle shape. When using existing crimping equipment for terminal crimping, operators need to manually align and precisely assemble the scattered conductors with the connector terminals. This process is not only cumbersome and time-consuming, but also prone to issues such as conductor misalignment and unevenness, affecting the crimping quality and connection stability of the cable terminals.

[0004] In view of the above-mentioned shortcomings, the present invention aims to create a cable terminal crimping device to prevent stamping misalignment, thereby making it more industrially valuable. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the purpose of this invention is to provide a cable terminal crimping device to prevent stamping misalignment, including a base frame, on which a guide mechanism and a crimping head are provided, the crimping head being located above the guide mechanism, and the crimping position of the crimping head and the metal terminal being vertically corresponding.

[0006] The guiding mechanism includes an upper pressing component and a lower supporting component, which are distributed relative to each other. The upper pressing component is located above the lower supporting component and is movable along the height direction of the lower supporting component. After the upper pressing component rises, the lower supporting component opens to allow the cable to be loaded and unloaded. The upper pressing component and the lower supporting component cooperate to form a cable bundle channel and a guiding channel that is compatible with the opening end of the metal terminal. The cable is placed in the guide channel, and the stripped section of the cable is placed in or outside the cable bundle channel. The cable is controlled to move along the guide channel away from the cable bundle channel. The stripped section of the cable enters the guide channel after being compressed and organized by the cable bundle channel. The guide mechanism is radially movable along the metal terminal. When the guide mechanism moves toward the metal terminal and presses the metal terminal, the stripped section of the compressed cable is inserted into the metal terminal through the guide channel. The pressure head moves downward to flatten the crimping position of the metal terminal, and the stripped section of the cable is pressed and fixed in the metal terminal.

[0007] Preferably, the upper pressure member includes an upper arc plate and an upper guide sleeve, with the upper guide sleeve fixed to the upper arc plate; The lower support includes a lower arc plate and a lower guide sleeve, with the lower guide sleeve fixed to the lower arc plate; The wire harness channel is located between the upper guide sleeve and the lower guide sleeve, and the guide channel is located between the upper arc plate and the lower arc plate.

[0008] Preferably, the guide mechanism is provided with an anti-detachment mechanism, which includes a pressure block and a support rod. The pressure block is slidably inserted through the top of the upper pressure member, close to the wire harness channel, while the support rod is away from the wire harness channel and distributed correspondingly to the lower support member. The pressure block and the support rod move in opposite directions up and down.

[0009] Preferably, a movable plate is fixedly installed at the bottom of the lower support, and a pressure table is fixedly installed on the frame. The pressure table includes a feeding part and a positioning part, which are distributed in an L-shape. The movable plate is slidably disposed at the positioning part. The feeding section has a feeding groove for feeding metal terminals; A fixed block for abutting and engaging with the support rod is fixedly installed on the top of the positioning part, and the fixed block is located in the middle section of the top of the positioning part; The side of the pressing block is fixedly equipped with a support frame, the top of the positioning part has a lifting block, the side of the lifting block away from the feeding part is provided with an inclined surface, the lifting block is close to the feeding part, and the bottom end of the support frame is configured to cooperate with the inclined surface of the lifting block.

[0010] Preferably, a side shaft is fixedly installed on the upper pressing member, and a vertical plate is fixedly installed on the end of the side shaft away from the upper pressing member. An arm plate is rotatably provided at the bottom end of the vertical plate, and a guide rod is fixedly installed on the top of the pressing block. A sliding channel is opened on the arm plate, and the guide rod is slidably disposed in the sliding channel. A torsion spring is provided between the arm plate and the upright plate; The arm plate is rotatably provided with an ear plate at the end away from the guide rod. The support rod is fixedly installed on the ear plate, and the upper and lower ends of the ear plate are respectively fixedly connected with an upper limit block and a lower limit block, which abut against the upper and lower surfaces of the arm plate respectively.

[0011] Preferably, the side shaft is located near the support rod.

[0012] Preferably, the ear plate is inclined, with its top tip tilted toward the wire channel.

[0013] Preferably, a first electric push rod is provided between the lower support and the upper pressure member. The fixed end of the first electric push rod is fixedly installed on the side wall of the lower support, and the telescopic end of the first electric push rod is fixedly installed on the side wall of the upper pressure member.

[0014] Preferably, the inner diameter of the small end of the wire harness channel is the same as the outer diameter of the metal terminal, the inner diameter of the small end of the wire harness channel is larger than the diameter of the guide channel, and the inner diameter of the open end of the metal terminal is the same as the diameter of the guide channel.

[0015] Preferably, the frame is provided with a driving component that moves the pressure head up and down, and the driving component includes an electric cylinder.

[0016] By means of the above-described solution, the present invention has at least the following advantages: 1. By setting up structures such as upper pressing parts and lower supporting parts, this invention realizes the compression and sorting of stripped sections, the precise alignment of metal terminals, and the centering and calibration of cables and terminals, reducing the difficulty of manual operation and improving the efficiency of cable terminal crimping. 2. By setting up structures such as pressure blocks and support rods, automatic anti-slip limit is achieved during the cable pulling process. This does not affect the smooth operation of the stripping section compression and sorting, and can trigger resistance reminders in time when the cable is excessively pulled, effectively avoiding the risk of cable slippage. No additional manual control is required, which improves the practicality and operational stability of the device. 3. By setting up anti-detachment mechanisms, guiding mechanisms and other structures, multiple functions are realized, including cable compression and sorting, metal terminal alignment, cable anti-detachment limit, smooth connection and limit switching before crimping, thereby improving the accuracy, stability and reliability of cable terminal crimping. 4. The inner diameter of the guide channel is consistent with the inner diameter of the opening end of the metal terminal to ensure that the copper wires of the cable after compression and sorting can be accurately and smoothly inserted into the opening end of the metal terminal without the copper wires becoming scattered again, thus further ensuring the accuracy and stability of subsequent crimping operations. 5. When the stripped section of the cable enters the open end of the metal terminal, the support rod will not squeeze the cable, and the pressure block will retract into the through groove to ensure smooth cable movement and achieve stable connection between the cable and the metal terminal. 6. By setting up structures such as lifting blocks and stationary blocks, and coordinating with the movement of related components of the moving plate, a smooth switching between cable docking and pre-crimping limit is achieved, ensuring that the crimping operation is completed in an orderly and efficient manner.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cable terminal crimping device for preventing stamping misalignment according to the present invention.

[0020] Figure 2 This is a schematic diagram of another perspective of the cable terminal crimping device for preventing stamping misalignment according to the present invention.

[0021] Figure 3 This is a schematic diagram of the feeding section and positioning section of the present invention.

[0022] Figure 4 This is a schematic diagram of the upper and lower arc plate structures of the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Figure 6 This is a schematic diagram of the through groove and pressure block structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the lifting block and stationary block structure of the present invention.

[0026] Figure 8 This is a schematic diagram of the lower arc plate and lower guide sleeve structure of the present invention.

[0027] Figure 9 This is a schematic diagram of the lower arc plate and metal terminal structure of the present invention.

[0028] Figure 10 This is a schematic diagram of the extended state of the pressure block of the present invention.

[0029] Figure 11 This is a schematic diagram of the briquette recycling state of the present invention.

[0030] Figure 12 This is a schematic diagram of the contact state between the support rod and the fixed block of the present invention.

[0031] In the diagram: 1. Base frame; 2. Press head; 3. Pressing table; 301. Feeding section; 302. Positioning section; 3021. Feeding trough; 4. Upper pressing component; 401. Upper arc plate; 402. Upper guide sleeve; 5. Lower support component; 501. Lower arc plate; 502. Lower guide sleeve; 6. Moving plate; 7. Fixed base; 8. First electric push rod; 9. Side shaft; 10. Vertical plate; 11. Torsion spring; 12. Bottom shaft; 13. Arm plate; 14. Through groove; 15. Pressing block; 16. Guide rod; 17. Sliding channel; 18. Ear plate; 19. Support rod; 20. Upper limit block; 21. Lower limit block; 22. Support frame; 23. Lifting block; 24. Fixed block; 25. Second electric push rod; 26. Metal terminal; 27. Drive component. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0033] This invention provides, for example Figures 1-12 The cable terminal crimping device shown includes a base 1, a pressing platform 3, and a pressing head 2. The pressing platform 3 is installed at the bottom of the base 1, and the pressing head 2 is located above the pressing platform 3. A driving component 27 is installed on the base 1 to drive the pressing head 2 to reciprocate up and down. The pressing platform 3 is used to place the metal terminal 26. When the stripped section of the cable end engages with the metal terminal 26, the driving component 27 drives the pressing head 2 to descend, flattening the crimping position of the metal terminal 26, thereby connecting the cable to the metal terminal 26.

[0034] The metal terminal 26 is a conventional model, including a flat end and an open end. The flat end serves as the assembly and fixing part of the metal terminal 26 and is provided with mounting holes of appropriate specifications. During assembly, bolts are used to pass through the mounting holes and align with the pre-set threaded holes of the power equipment to ensure that the metal terminal 26 is installed firmly and without deviation. The open end serves as the crimping part of the metal terminal 26, allowing the stripped section of the cable to be inserted. With the crimping action of the crimping head 2, a reliable connection and fixing of the cable and the metal terminal 26 is achieved, ensuring stable power and signal transmission.

[0035] In traditional techniques, the stripped section of the cable end is usually inserted into the metal terminal 26 manually. However, the stripped section of the cable is usually formed by multiple copper wires, which are prone to dispersion and breakage. Without manually reorganizing and rebinding the multiple copper wires, it is difficult to insert the stripped section into the metal terminal 26 smoothly in one go. Therefore, the present invention provides a wire bundling mechanism on the cable terminal crimping device. The wire bundling mechanism can bind multiple copper wires into a cylindrical wire with a radial radius smaller than the inner radius of the metal terminal 26, completing the gathering operation. This facilitates the rapid and one-time insertion of the stripped section into the metal terminal 26 by manual or automated means.

[0036] refer to Figure 3 As shown, the wire harnessing mechanism includes an upper pressing member 4 and a lower supporting member 5. The upper pressing member 4 and the lower supporting member 5 are respectively disposed at the open end of the metal terminal 26. The upper pressing member 4 and the lower supporting member 5 are telescopically disposed along the axis of the metal terminal 26 and are equipped with a drive mechanism. The upper pressing member 4 includes an integrally disposed upper arc plate 401 and an upper guide sleeve 402. The lower supporting member 5 includes an integrally disposed lower arc plate 501 and a lower guide sleeve 502. The lower guide sleeve 502 and the upper guide sleeve 402 are both semi-conical shell structures. The lower arc plate 501 and the upper arc plate 401 are both semi-cylindrical structures. The upper pressing member 4 is vertically movable relative to the lower supporting member 5 in the height direction. A guide channel is formed between the upper arc plate 401 and the lower arc plate 501, and a wire harnessing channel is formed between the upper guide sleeve 402 and the lower guide sleeve 502.

[0037] When it is necessary to crimp cable terminals, the specific operating procedure is as follows: The first step is to move the upper pressure component 4 upward relative to the lower support component 5 in the height direction to open the guide channel and the wire harness channel; The second step is to prepare the cable and strip the insulation from the cable end using manual or automated machinery, leaving a stripped section of 1-10mm. The third step is to place the cable in the guide channel opened in the first step, with the stripped section of the cable placed outside the cable bundle channel, and then move the upper pressure member 4 downward relative to the lower support member 5 in the height direction to close the guide channel and the cable bundle channel. The fourth step involves using a manual or automated traction mechanism to pull the cable from one end of the guide channel, causing the cable to move away from the cable bundle channel along the guide channel. At this time, after passing through the wire bundle channel, the stripped section enters the guide channel and is compressed and shaped into a columnar wire body. The radial cross-sectional radius of the columnar wire body is smaller than the cross-sectional radius of the open end of the metal terminal 26. Fifth step, use the drive mechanism to drive the cable harness mechanism to move towards the metal terminal 26. When the end of the cable harness mechanism is in contact with the end of the metal terminal 26, the cable is simultaneously driven to move towards the position of the metal terminal 26. Then, use a manual or automatic traction mechanism to move the stripped section of the cable end in the opposite direction and insert it into the metal terminal 26. The sixth step involves using the drive unit 27 to drive the pressure head 2 to press down. The pressure head 2 flattens the crimping position of the metal terminal 26, and the stripped section of the cable is pressed and fixed in the metal terminal 26, thus completing the crimping and fixing of the cable terminal.

[0038] In actual use, the automated traction mechanism includes core structures such as cable clamping claws and guide positioning seats (not shown in the figure). Its structural design is precisely matched with the guide channel, cable bundle channel and metal terminal 26 of the cable bundling mechanism. It can accurately guide the cable to move smoothly along the preset trajectory, ensuring that the stripped section of the cable passes smoothly through the cable bundle channel and guide channel and is accurately inserted into the metal terminal 26, thus ensuring the smoothness and stability of the crimping process. This traction mechanism is a common existing technology, and its specific structure and power transmission method are mature, so it will not be described in detail here.

[0039] The drive unit 27 uses an electric cylinder of model SC63×100. The specific connection method is as follows: the cylinder body of the electric cylinder is fixed on the preset mounting seat of the frame 1, and the pressure head 2 is fixed to the end of the piston rod of the electric cylinder. At the same time, the control circuit of the drive unit 27 is connected to the main control system of the equipment. The extension and retraction of the electric cylinder is precisely controlled by the electrical signal issued by the PLC to realize the automated operation of the pressing operation. During operation: when the control system issues a pressing command, the piston rod drives the pressure head 2 to descend at a constant speed. During the descent, the pressure sensor inside the electric cylinder provides real-time feedback of pressure data to ensure that the pressure head 2 applies stable pressure to the metal terminal 26 until the pressure head 2 presses and fixes the stripped section of the cable into the metal terminal 26. After the pressing is completed, the pressure sensor provides a pressing completion signal, and the control system immediately issues a reset command. The piston rod drives the pressure head 2 to rise at a constant speed and return to the initial standby position to wait for the next pressing command.

[0040] It should be noted that the drive component 27 can also be an electric cylinder or a hydraulic cylinder, both of which are electrically controlled to achieve their actions. For example, an electric cylinder of model EDC-60-100-P and a hydraulic cylinder of model MOB40×50. When using the EDC-60-100-P electric cylinder, the crimping accuracy between the cable and the metal terminal 26 can be controlled within ±0.02mm. It has stronger operational stability and higher positioning accuracy, making it suitable for precision work conditions with extremely high crimping quality requirements. However, the operating cost is higher, and the later maintenance is slightly more difficult, requiring regular lubrication and maintenance of the ball screw and servo motor of the electric cylinder. When using the MOB40×50 hydraulic cylinder, the crimping accuracy is about ±0.05mm, which can meet the crimping requirements of conventional cables and metal terminals 26. It has a simple structure, strong load-bearing capacity, lower equipment cost, and convenient later maintenance. Only the hydraulic oil level and sealing need to be checked regularly. The choice is usually based on actual operational accuracy requirements, cost budget, and other actual needs, which will not be elaborated here.

[0041] Reference Figure 3 , Figure 4As shown, a second driving mechanism is provided between the upper pressing member 4 and the lower supporting member 5. The second driving mechanism includes a first electric push rod 8 and two brackets. The two brackets are respectively fixedly installed on the fixed end and the telescopic end of the first electric push rod 8. One bracket is fixedly installed on the side wall of the upper arc plate 401, and the other bracket is fixedly installed on the side wall of the lower arc plate 501. During operation, by controlling the telescopic movement of the first electric push rod 8, the upper pressing member 4 can be driven to move up and down in the vertical direction. When the first electric push rod 8 extends, it drives the upper pressing member 4 to move upward, so that the upper pressing member 4 separates from the lower supporting member 5, making it convenient for the operator to put in the cable or take out the crimped cable connector. When the first electric push rod 8 retracts, it causes the upper arc plate 401 and the lower arc plate 501 to close, and the upper guide sleeve 402 and the lower guide sleeve 502 to close, forming a complete guide channel and cable bundle channel.

[0042] refer to Figure 3 As shown, the pressure table 3 is provided with a feeding part 301 and a positioning part 302. The feeding part 301 and the positioning part 302 are arranged in an L-shape, and the positioning part 302 is U-shaped. A feeding groove 3021 is provided on the side of the feeding part 301 near the positioning part 302. The flat end of the metal terminal 26 can be inserted into the feeding groove 3021 and slide stably. At the same time, a limiting frame is fixedly installed on the side of the feeding part 301 near the positioning part 302. The limiting frame is located below the feeding groove 3021 and is L-shaped. It can cooperate with the outer wall of the feeding part 301 and the feeding groove 3021 to limit the opening end of the metal terminal 26, ensuring stable feeding of the metal terminal 26.

[0043] In use, operators or automated machinery (such as automated robotic arms) pre-arrange multiple metal terminals 26 neatly inside the feeding trough 3021, with the open ends of the metal terminals 26 resting on the limiting frame. In conjunction with the automated machinery (such as automated robotic arms), the metal terminals 26 are pushed sequentially along the feeding trough 3021 to the corresponding positioning part 302, so as to realize the continuous and orderly feeding of the metal terminals 26. The feeding operation is a common existing technology and will not be described in detail here.

[0044] Furthermore, the drive mechanism includes a second electric push rod 25, a movable plate 6 is slidably disposed on the positioning part 302, a fixed seat 7 is bolted to the top of the movable plate 6, the bottom end of the lower arc plate 501 is fixedly connected to the top of the fixed seat 7, and the lower support 5 can move horizontally synchronously with the movable plate 6; the fixed end of the second electric push rod 25 is fixedly installed on the outer wall of the positioning part 302, and the telescopic end of the second electric push rod 25 extends horizontally and is fixedly connected to the end of the movable plate 6 away from the loading part 301. Through the telescopic action of the second electric push rod 25, the movable plate 6 is driven to move horizontally on the positioning part 302 in a direction close to or away from the loading part 301.

[0045] Reference Figure 9As shown, the inner diameter of the small end of the wire harness channel is the same as the outer diameter of the metal terminal 26. The inner diameter of the small end of the wire harness channel is larger than the diameter of the guide channel, while the inner diameter of the open end of the metal terminal 26 is the same as the diameter of the guide channel, ensuring that the open end of the metal terminal 26 can enter the interior of the wire harness channel, and the upper arc plate 401 and the lower arc plate 501 can abut against the open end of the metal terminal 26.

[0046] After the stripped section enters the guide channel through the cable bundle channel, the telescopic end of the second electric push rod 25 is retracted, driving the moving plate 6 and the guide mechanism to move smoothly towards the loading section 301 until the upper arc plate 401, the lower arc plate 501 and the opening end of the metal terminal 26 are tightly pressed together. Due to the inclined guiding effect of the inner wall of the cable bundle channel, if the metal terminal 26 has a slight positional deviation, it will be pushed by the squeezing force of the inner wall of the cable bundle channel to quickly adjust to the correct position coaxial with the guide channel, and accurately complete the alignment operation between the metal terminal 26 and the cable.

[0047] Furthermore, since the inner diameter of the opening end of the metal terminal 26 is the same as the diameter of the guide channel, the opening end of the metal terminal 26 is directly connected to the guide channel, which ensures that the copper wires of the cable after compression and sorting can be accurately and smoothly inserted into the opening end of the metal terminal 26, and the copper wires will not be scattered again, further ensuring the accuracy and stability of subsequent crimping operations.

[0048] In summary, by setting up structures such as the upper pressing component 4 and the lower supporting component 5, this invention achieves automatic gathering of loose cables, precise alignment of the metal terminals 26, and centering calibration of the cables and terminals, reducing the difficulty of manual operation and improving the efficiency of cable terminal crimping.

[0049] Considering that manual operation could easily cause the cable to slip out of the guide channel if the operator pulls it along the guide channel away from the cable bundle channel, or if there is an accidental tugging, an anti-slip mechanism is provided to prevent accidental slippage. This anti-slip mechanism works in conjunction with the guide mechanism. The anti-slip mechanism includes a pressure block 15 and a support rod 19. A through slot 14 is provided through the top of the upper arc plate 401, and the through slot 14 is close to the cable bundle channel. The pressure block 15 is slidably disposed inside the through slot 14. A side shaft 9 is fixedly installed on the side wall of the upper arc plate 401, and the side shaft 9 is located away from the upper... An upright plate 10 is fixedly installed at one end of the arc plate 401. A bottom shaft 12 is fixedly connected to the bottom end of the upright plate 10. An arm plate 13 is rotatably mounted on the bottom shaft 12. A guide rod 16 is fixedly installed on the top of the pressure block 15. A sliding channel 17 is opened on the arm plate 13. The guide rod 16 is slidably mounted in the sliding channel 17. An ear plate 18 is rotatably mounted at the end of the arm plate 13 away from the guide rod 16. The ear plate 18 is inclined. When not subjected to other external forces, its top end is inclined towards the direction of the wire harness channel. A support rod 19 is fixedly mounted on the ear plate 18. The support rod 19 is distributed correspondingly with the lower support 5.

[0050] Furthermore, the bottom end of the pressure block 15 is arc-shaped, and the pressure block 15 is adapted to the arc-shaped inner wall of the upper arc plate 401.

[0051] Furthermore, the outside of the support rod 19 is provided with anti-slip texture to increase friction with the cable.

[0052] Reference Figure 5 As shown, a torsion spring 11 is provided between the arm plate 13 and the upright plate 10. The torsion spring 11 is mounted on the bottom shaft 12. One end of the torsion spring 11 is fixedly connected to the bottom shaft 12, and the other end of the torsion spring 11 is fixedly connected to the arm plate 13.

[0053] Reference Figure 4 As shown, upper limit block 20 and lower limit block 21 are fixedly connected to the upper and lower ends of ear plate 18, respectively. Upper limit block 20 and lower limit block 21 abut against the upper and lower surfaces of arm plate 13, respectively. Upper limit block 20 and lower limit block 21 are provided to limit the swing of ear plate 18.

[0054] refer to Figure 10 As shown, when no other external force is applied, the bottom end of the pressure block 15 extends into the guide channel under the elastic support force of the torsion spring 11.

[0055] In actual use, after the upper arc plate 401 and the lower arc plate 501, and the upper guide sleeve 402 and the lower guide sleeve 502 are closed, the outer wall of the cable will exert a squeezing effect on the pressure block 15 in the guide channel, causing the pressure block 15 to slide upward and retract inside the through groove 14 until the bottom end of the pressure block 15 is aligned with the arc-shaped inner wall of the upper arc plate 401. During this process, the pressure block 15 drives the guide rod 16 to move upward synchronously. The guide rod 16 slides in the sliding channel 17 of the arm plate 13, driving the arm plate 13 to rotate around the bottom shaft 12. The end of the arm plate 13 near the guide rod 16 moves upward, and the end near the support rod 19 moves downward. The support rod 19 moves downward accordingly and will not contact the outer wall of the cable, thus avoiding affecting the normal pulling of the cable.

[0056] Subsequently, the operator slowly pulls the cable away from the cable bundle channel. At the moment when the stripped section of the cable is misaligned with the pressure block 15, the pressure block 15 loses the squeezing effect of the cable. Under the restoring force of the torsion spring 11, the pressure block 15 slides downward and extends out inside the through groove 14. At this time, the torsion spring 11 drives the arm plate 13 to rotate in the opposite direction, and its end near the support rod 19 moves upward. The support rod 19 moves upward synchronously and tightly abuts against the outer wall of the cable. If the operator continues to pull the cable or an accidental tug occurs, the top of the ear plate 18 will flip to a vertical position away from the cable bundle channel, and the lower limit block 21 will abut against the arm plate 13. At this time, the operator can clearly feel the increase in pulling resistance, so he can stop pulling immediately and effectively prevent the cable from slipping directly out of the guide channel.

[0057] By setting up structures such as pressure block 15 and support rod 19, automatic anti-slip limit is achieved during the cable pulling process. This does not affect the smooth operation of the stripping section compression and sorting, and can trigger resistance reminder in time when the cable is excessively pulled, effectively avoiding the risk of cable slippage. No additional manual control is required, which improves the practicality and operational stability of the device.

[0058] Furthermore, the side shaft 9 is arranged close to the support rod 19. This design makes the force arm distribution of the arm plate 13 form a reasonable ratio: the force arm from the bottom shaft 12 (fulcrum) to the support rod 19 on the arm plate 13 is shorter, while the force arm from the bottom shaft 12 (fulcrum) to the pressure block 15 is longer. The shorter force arm can amplify the elastic force of the torsion spring 11, so that the support rod 19 has a sufficiently large clamping force when it abuts the cable, while the longer force arm can make the pressure block 15 more sensitive to the cable squeezing force, realizing the rapid extension and retraction response of the pressure block 15.

[0059] Reference Figure 3 , Figure 7 As shown, to ensure the stable operation of subsequent crimping, a fixed block 24 for abutting and cooperating with the support rod 19 is fixed on the top of the positioning part 302. The fixed block 24 is located in the middle section of the top of the positioning part 302. At the same time, a support frame 22 is fixedly installed on the side of the pressing block 15, and a lifting block 23 is fixed on the top of the positioning part 302. The lifting block 23 is close to the feeding part 301. The bottom end of the support frame 22 abuts and cooperates with the lifting block 23. The lifting block 23 includes an inclined surface and a horizontal surface, wherein the horizontal surface is close to the feeding part 301.

[0060] The bottom of the support frame 22 is equipped with a ball bearing structure (not shown in the figure) at the contact point with the lifting block 23 to reduce wear; the support frame 22, the support rod 19 and other structures are all made of high-strength materials, such as stainless steel.

[0061] In actual use, after stopping the cable pulling, the telescopic end of the second electric push rod 25 is retracted, driving the moving plate 6 and the guide mechanism to move towards the metal terminal 26 to be processed.

[0062] First stage: The bottom end of the support frame 22 first contacts the inclined surface of the lifting block 23, and then abuts against the horizontal surface of the lifting block 23. Under the lifting action of the horizontal surface, the support frame 22 drives the pressure block 15 to slide upward and retract inside the through groove 14. At the same time, the pressure block 15 drives the guide rod 16 to move upward synchronously, and drives the arm plate 13 to rotate around the bottom shaft 12. The end of the arm plate 13 near the guide rod 16 moves upward and the end near the support rod 19 moves downward. The support rod 19 moves downward accordingly and will not squeeze the cable. The moving plate 6 stops moving. At this time, the support rod 19 does not contact the fixed block 24.

[0063] Second stage: The operator controls the cable to move towards the metal terminal 26. The stripped section of the cable enters the open end of the metal terminal 26. Since the support rod 19 will not squeeze the cable, and the pressure block 15 is retracted into the through groove 14, the cable moves smoothly and the cable is stably connected to the metal terminal 26. Furthermore, when the cable moves toward the metal terminal 26, the cable moves in the same direction as the top of the ear plate 18 tilts toward the cable channel, further ensuring smooth cable movement.

[0064] The third stage: The control moving plate 6 and the guide mechanism continue to move towards the metal terminal 26 to be processed until the upper arc plate 401 and the lower arc plate 501 are tightly pressed against the open end of the metal terminal 26. During this process, the support rod 19 contacts the fixed block 24, causing the ear plate 18 to flip to a vertical position. The bottom end of the ear plate 18 abuts against the bottom of the moving plate 6, and the lower limit block 21 abuts against the arm plate 13. At this time, the support rod 19, driven by the ear plate 18, moderately squeezes the cable to achieve cable limit and prevent the cable from loosening or shifting during subsequent crimping, thus ensuring crimping accuracy.

[0065] Fourth stage: The metal terminal 26, which has been positioned, is pressed and crimped with the cable by the drive unit 27 and the pressure head 2.

[0066] By setting up structures such as lifting block 23 and fixed block 24, and coordinating with the movement of related components of moving plate 6, a smooth switching between cable docking and pre-crimping limit can be achieved, ensuring that the crimping operation is completed in an orderly and efficient manner.

[0067] In summary, by setting up anti-detachment mechanisms, guiding mechanisms, and other structures, this invention achieves multiple functions such as cable compression and arrangement, alignment of metal terminals 26, cable anti-detachment limit, smooth connection, and limit switching before crimping, thereby improving the accuracy, stability, and reliability of cable terminal crimping.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A cable terminal crimping device for preventing stamping misalignment, comprising a base (1), characterized in that: The frame (1) is provided with a guide mechanism and a pressure head (2). The pressure head (2) is located above the guide mechanism, and the pressure head (2) and the metal terminal (26) are vertically aligned. The guiding mechanism includes an upper pressing member (4) and a lower supporting member (5). The upper pressing member (4) and the lower supporting member (5) are distributed relative to each other. The upper pressing member (4) is located above the lower supporting member (5). The upper pressing member (4) is moved along the height direction of the lower supporting member (5). After the upper pressing member (4) rises, the lower supporting member (5) opens to allow the cable to be loaded and unloaded. The upper pressing member (4) and the lower supporting member (5) cooperate to form a cable bundle channel and a guiding channel that is compatible with the open end of the metal terminal (26). The cable is placed in the guide channel, and the stripped section of the cable is placed in or outside the cable bundle channel. The cable is controlled to move along the guide channel away from the cable bundle channel. The stripped section of the cable enters the guide channel after being compressed and organized by the cable bundle channel. The guide mechanism is radially movable along the metal terminal (26). When the guide mechanism moves toward the metal terminal (26) and presses the metal terminal (26), the stripped section of the compressed cable is inserted into the metal terminal (26) through the guide channel. The pressure head (2) moves downward to flatten the crimping position of the metal terminal (26), and the stripped section of the cable is pressed and fixed in the metal terminal (26).

2. The cable terminal crimping device for preventing stamping misalignment according to claim 1, characterized in that: The upper pressure component (4) includes an upper arc plate (401) and an upper guide sleeve (402), with the upper guide sleeve (402) fixed on the upper arc plate (401); The lower support (5) includes a lower arc plate (501) and a lower guide sleeve (502), with the lower guide sleeve (502) fixed on the lower arc plate (501); The wire harness channel is located between the upper guide sleeve (402) and the lower guide sleeve (502), and the guide channel is located between the upper arc plate (401) and the lower arc plate (501).

3. The cable terminal crimping device for preventing stamping misalignment according to claim 1, characterized in that: The guide mechanism is provided with an anti-detachment mechanism, which includes a pressure block (15) and a support rod (19). The pressure block (15) slides through the top of the upper pressure member (4). The pressure block (15) is close to the wire harness channel, and the support rod (19) is away from the wire harness channel and is distributed correspondingly to the lower support member (5). The pressure block (15) and the support rod (19) move in opposite directions up and down.

4. The cable terminal crimping device for preventing stamping misalignment according to claim 3, characterized in that: The bottom of the lower support (5) is fixedly installed with a movable plate (6), and the seat (1) is fixedly installed with a pressure table (3). The pressure table (3) includes a feeding part (301) and a positioning part (302). The feeding part (301) and the positioning part (302) are arranged in an L-shape. The movable plate (6) is slidably disposed at the positioning part (302). The feeding section (301) has a feeding groove (3021) for feeding metal terminals (26). The top of the positioning part (302) is fixedly installed with a fixing block (24) for abutting and cooperating with the support rod (19), and the fixing block (24) is located in the middle section of the top of the positioning part (302); The side of the pressure block (15) is fixedly equipped with a support frame (22), and the top of the positioning part (302) has a lifting block (23). The side of the lifting block (23) away from the feeding part (301) is provided with an inclined surface. The lifting block (23) is close to the feeding part (301), and the bottom end of the support frame (22) is configured to cooperate with the inclined surface of the lifting block (23).

5. The cable terminal crimping device for preventing stamping misalignment according to claim 3, characterized in that: A side shaft (9) is fixedly installed on the upper pressure member (4). A vertical plate (10) is fixedly installed on the end of the side shaft (9) away from the upper pressure member (4). An arm plate (13) is rotatably installed at the bottom end of the vertical plate (10). A guide rod (16) is fixedly installed on the top of the pressure block (15). A sliding channel (17) is opened on the arm plate (13). The guide rod (16) is slidably installed in the sliding channel (17). A torsion spring (11) is provided between the arm plate (13) and the upright plate (10). The arm plate (13) is rotatably provided with an ear plate (18) at the end away from the guide rod (16). The support rod (19) is fixedly installed on the ear plate (18), and the upper and lower ends of the ear plate (18) are respectively fixedly connected with an upper limit block (20) and a lower limit block (21). The upper limit block (20) and the lower limit block (21) respectively abut against the upper and lower surfaces of the arm plate (13).

6. The cable terminal crimping device for preventing stamping misalignment according to claim 5, characterized in that: The side shaft (9) is close to the support rod (19).

7. The cable terminal crimping device for preventing stamping misalignment according to claim 5, characterized in that: The ear plate (18) is inclined, with its top tip tilted toward the wire channel.

8. The cable terminal crimping device for preventing stamping misalignment according to claim 1, characterized in that: A first electric push rod (8) is provided between the lower support (5) and the upper pressure member (4). The fixed end of the first electric push rod (8) is fixedly installed on the side wall of the lower support (5), and the telescopic end of the first electric push rod (8) is fixedly installed on the side wall of the upper pressure member (4).

9. The cable terminal crimping device for preventing stamping misalignment according to claim 1, characterized in that: The inner diameter of the small end of the wire harness channel is the same as the outer diameter of the metal terminal (26). The inner diameter of the small end of the wire harness channel is larger than the diameter of the guide channel. The inner diameter of the open end of the metal terminal (26) is the same as the diameter of the guide channel.

10. The cable terminal crimping device for preventing stamping misalignment according to claim 1, characterized in that: The mounting frame (1) is provided with a drive component (27) that drives the pressure head (2) to move up and down. The drive component (27) includes an electric cylinder.

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