An automatic clamping device for short wire harnesses

Abstract

This utility model discloses an automatic clamping device for short wire harnesses, comprising a wire harness feeding device, a pulling and feeding device, a U-forming device, a clamping and straightening device, and a locking module. The pulling and feeding device includes a first clamping module, a second clamping module, a first driving component, and a second driving component. The U-forming device includes a first rotary driving component and a first clamping assembly that rotates around a horizontal axis, the first rotary driving component being connected to the movable end of the first driving module. The clamping and straightening device includes a first clamping and straightening mechanism, a second clamping and straightening mechanism, and a third driving component that drives the first clamping and straightening mechanism and the second clamping and straightening mechanism to move simultaneously. Through highly integrated and intelligent design, this utility model achieves efficient, high-precision, and highly flexible automated production of short wire harnesses for U-forming, straightening, and clamping, improving production efficiency, ensuring product quality, enhancing production line adaptability, and reducing production costs.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness assembly technology, and in particular relates to an automatic clamping device for short wire harnesses. Background Technology

[0002] Against the backdrop of exponential growth in demand for AI computing power, high-speed data transmission lines, acting as the "nerve vessels" connecting chips, servers, and data centers, directly impact signal integrity and system reliability due to the assembly precision and efficiency of high-speed transmission harnesses. Traditional manual clamping methods suffer from low efficiency and poor consistency; therefore, automated harness clamping equipment has become a key technological requirement in the industry.

[0003] The wire harness material is usually in whole rolls. It needs to be cut to a set length first, then bent into a U-shaped structure, and then terminals are welded to the end. In the prior art, such as the automated wire harness clamp assembly machine disclosed in Chinese Utility Model Patent Publication No. CN222404289U, the first rotary U-shaped component and the second rotary U-shaped component clamp the two ends of the wire harness, which can realize the U-shaped action of the wire harness. However, there are still the following problems: (1) Only one wire harness can be U-shaped at a time, which is not only inefficient, but also cannot be completed if multiple parallel U-shaped wire harnesses need to be assembled in a product at the same time; (2) Moreover, the U-shaped action can only be performed on wire harnesses that have been cut to a set length. The whole roll of material cannot be cut to a set length. (3) The first rotary U-shaped component and the second rotary U-shaped component clamp the two ends of the wire harness in the scheme, which can only perform U-shaped action on longer wire harnesses. If the wire harness is short, the first rotary U-shaped component and the second rotary U-shaped component cannot clamp the two ends of the wire harness at the same time, and the U-shaped action cannot be completed.

[0004] Therefore, it is necessary to provide an automatic clamping device for short wire harnesses to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide an automatic clamping device for short wire harnesses. Through highly integrated and intelligent design, it realizes efficient, high-precision, and highly flexible automated production of short wire harnesses for U-forming, straightening, and clamping, thereby improving production efficiency, ensuring product quality, enhancing production line adaptability, and reducing production costs.

[0006] This utility model achieves the above objective through the following technical solution: an automatic clamping device for short wire harnesses, comprising: A wire harness feeding device, comprising a feeding assembly and a cutting module; A material feeding device includes a first clamping module, a second clamping module, a first driving member, and a second driving member. The first driving member drives the first clamping module and the second clamping module to move simultaneously in a first direction, and the second driving member drives the second clamping module to move along a second direction. The first direction is perpendicular to the second direction. A U-shaped device includes a first rotary drive and a first gripping assembly that is driven by the first rotary drive to rotate about a horizontal axis, wherein the first rotary drive is connected to the movable end of a first drive module. A clamp conveying device includes a loading conveyor line, a unloading conveyor line, and a transfer positioning mechanism located at one end of the loading conveyor line and the unloading conveyor line; A clamping and straightening device includes a first clamping and straightening mechanism, a second clamping and straightening mechanism, and a third driving member that drives the first clamping and straightening mechanism and the second clamping and straightening mechanism to move simultaneously toward the transfer and positioning mechanism; Locking module.

[0007] Furthermore, the feeding assembly includes several roll frames and a first motor that drives the roll frames to rotate; the cutting module includes a cutter and a cutting support plate that cooperate with each other, and each of the cutter and the cutting support plate is driven by a first cylinder to move up and down; a guide mechanism and a clamping assembly are provided between the feeding assembly and the cutting module.

[0008] Furthermore, the movable end of the first driving member is connected to a first support plate, the first clamping module is connected to one end of the first support plate and close to the cutting module, the second driving member is disposed on the first support plate, the movable end of the second driving member is connected to a second support plate, and the second clamping module is disposed on the second support plate; the first clamping module includes a second cylinder, a third support plate driven by the second cylinder to move along the first direction, and a first clamping unit disposed on the third support plate.

[0009] Furthermore, the first clamping unit includes a base, a sliding plate slidably disposed on the base, a third cylinder for driving the sliding plate to slide in a third direction, a pair of sliding blocks slidable in a fourth direction and disposed on the base, and a pair of first grippers disposed on the pair of sliding blocks. Each sliding block is fixedly provided with a cam. The base is provided with a set of first sliding grooves extending in the fourth direction, and the sliding plate is provided with a set of second sliding grooves.

[0010] Furthermore, two U-shaped devices are arranged side by side. The first drive module is an XY axis drive module, and the first rotary drive component is connected to the movable end of the first drive module through a fourth support plate. The first clamping assembly includes a clamping cylinder and a pair of second grippers driven by the clamping cylinder to perform unfolding or clamping actions.

[0011] Furthermore, the transfer positioning mechanism includes a first Z-axis drive, a lifting frame driven by the first Z-axis drive to perform lifting actions, a second rotary drive mounted on the lifting frame, and a positioning seat driven by the second rotary drive to rotate around the Z-axis. The positioning seat has a limit piece at one end away from the feeding conveyor line, and a holding block that holds the side of the clamp and a fourth cylinder that drives the holding block to move horizontally are provided on one side of the positioning seat.

[0012] Furthermore, the feeding conveyor line is equipped with a blocking component at its conveying end, and the unloading conveyor line is equipped with a material-pushing component at its conveying beginning.

[0013] Furthermore, the movable end of the third driving member is provided with a fifth support plate, and the first clamping and straightening mechanism and the second clamping and straightening mechanism are arranged side by side on the fifth support plate. Both the first clamping and straightening mechanism and the second clamping and straightening mechanism include a clamping module and a straightening module.

[0014] Furthermore, the clamping module includes a fifth cylinder, a sixth support plate that is driven by the fifth cylinder to move horizontally, and a first clamping assembly and a second clamping assembly disposed on the sixth support plate. The first clamping assembly and the second clamping assembly each include a clamping cylinder and a pair of third grippers that are driven by the clamping cylinder to clamp or open.

[0015] Furthermore, the straightening module is disposed on the sixth support plate. The straightening module includes a sixth cylinder, a seventh support plate that is driven by the sixth cylinder to move in a horizontal direction, a seventh cylinder disposed on the seventh support plate, and a pair of straightening claws that are driven by the seventh cylinder to perform opening or clamping actions. The straightening claws are located directly in front of the first clamping assembly and the second clamping assembly.

[0016] Compared with the prior art, the advantages of this utility model of an automatic clamping device for short wire harnesses are as follows: (1) High degree of automation and high efficiency: The equipment integrates automatic feeding, pulling, cutting, U-forming, straightening, clamping, locking and conveying functions, realizing full automation from wire harness raw materials to clamping; through the coordinated work of multiple clamping modules and drive components, especially the ability to process multiple short wire harnesses at the same time and use two U-forming devices to work in parallel, the production efficiency is greatly improved and it is suitable for mass production; (2) Excellent versatility and flexibility: Key clamping components (such as clamping rods, various types of grippers, straightening grippers) are all designed to be detachable. When different specifications of wire harnesses need to be processed, only the corresponding clamping components need to be replaced to quickly adapt to the equipment, thereby improving the applicability of the equipment and the flexibility of the production line. (3) High-precision positioning and stability: Each clamping, pressing and guiding mechanism is designed with contoured grooves and ribs to ensure the accurate positioning of the wire harness during transmission, cutting, U-forming, straightening and clamping, and to prevent misalignment or damage; the transfer positioning mechanism ensures the stability and repeatability of the clamp during positioning and locking through the cooperation of the top holding block and the clamp positioning groove, the cooperation of the positioning ridge and the clamp groove, and the design of the limiting piece, etc. (4) Reliable U-forming and straightening functions: The U-forming device, through its unique spatial movement (XY movement combined with rotation around the horizontal axis) and clamping method, can effectively complete the U-forming of short wire harnesses in conjunction with the clamping module. Subsequently, the dedicated straightening module straightens the bent wire harness, ensuring the shape quality of the wire harness before it is installed in the fixture, laying a good foundation for subsequent assembly. (5) Compact and smooth process flow design: The equipment layout is reasonable, and the various devices (wire harness feeding, material pulling and feeding, U-shaped, clamping and straightening, fixture conveying, locking module) are closely connected. The fixture conveying device, together with the transfer positioning mechanism, realizes automatic feeding, precise positioning, rotation and avoidance, and locking before unloading of the fixture. The entire material flow (wire harness and fixture) is smooth, reducing intermediate links and waiting time. (6) Improve product quality and consistency: Automated operation avoids quality fluctuations caused by human factors. From cutting length and U-shaped forming to locking torque, everything is precisely controlled by the equipment, ensuring product consistency and reliability. (7) Reduce labor costs and labor intensity: Fully automated operation significantly reduces reliance on operators and lowers labor costs; Therefore, this solution's automatic clamping equipment for short wire harnesses, through its highly integrated and intelligent design, achieves efficient, high-precision, and highly flexible automated production of short wire harnesses, including U-shaped clamping, straightening, and clamping. This improves production efficiency, ensures product quality, enhances production line adaptability, and reduces production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the automatic clamping device for short wire harnesses according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the wire harness feeding device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cutting module and clamping assembly according to an embodiment of the present invention; Figure 4This is a schematic diagram of the material feeding device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first clamping module according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first clamping unit or the second clamping module in an embodiment of the present invention; Figure 7 This is an embodiment of the present utility model. Figure 6 A schematic diagram of the structure after removing the third cylinder and the sliding plate; Figure 8 This is a schematic diagram of the structure of the U-shaped device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the clamp conveying device and locking module according to an embodiment of the present utility model; Figure 10 This is a schematic diagram of the transfer positioning mechanism, the feeding conveyor line, and the feeding assembly according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the structure of the blocking component, the feeding conveyor line, and the clamp in an embodiment of this utility model; Figure 12 This is a schematic diagram of the clamping and straightening device according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the first clamping and straightening mechanism and the second clamping and straightening mechanism according to an embodiment of the present utility model; The numbers in the diagram represent: 100-Short wire harness automatic clamping equipment; 1-Wire harness feeding device, 11-Feeding assembly, 111-Feeding rack, 112-Roll rack, 113-First motor, 12-Guiding mechanism, 121-Support column, 122-Wire block, 123-Guide wheel assembly, 124-Avoidance through hole, 125-First sensor, 13-Cutting module, 131-Cutter, 132-Cutting support plate, 133-First cylinder, 14-Pressure assembly, 141-Pressure cylinder, 142-Pressure rod, 15-First support frame; 2- Material feeding device, 21- First driving component, 22- First support plate, 23- First clamping module, 231- Second cylinder, 232- Third support plate, 233- First clamping unit, 2331- Base, 2332- Sliding plate, 2333- Third cylinder, 2334- Sliding block, 2335- First gripper, 2336- Cam, 2337- First slide groove, 2338- Second slide groove, 2339- First guide groove, 23310- Second guide groove, 24- Second driving component, 25- Second support plate, 26- Second clamping module; 3-U-shaped device, 31-first drive module, 32-fourth support plate, 33-first rotary drive component, 34-first gripping assembly, 341-gripping cylinder, 342-second gripper; 4-Clamping conveyor, 41-Feeding conveyor line, 42-Unloading conveyor line, 43-Transfer positioning mechanism, 431-First Z-axis drive, 432-Lifting frame, 433-Second rotary drive, 434-Positioning seat, 435-Positioning sliding groove, 436-Limiting piece, 437-Top holding block, 438-Fourth cylinder, 44-Blocking assembly, 441-Second sensor, 442-Blocking plate, 443-Blocking cylinder, 45-Material feeding assembly, 451-Material feeding plate, 452-Material feeding cylinder, 46-Mounting frame; 5-Locking module, 51-Locking component, 52-Locking drive component; 6-Clamping and straightening device, 61-First clamping and straightening mechanism, 611-Clamping module, 6111-Fifth cylinder, 6112-Sixth support plate, 6113-First clamping assembly, 61131-Clamping cylinder, 61132-Third gripper, 6114-Second clamping assembly, 612-Straightening module, 6121-Sixth cylinder, 6122-Seventh support plate, 6123-Seventh cylinder, 6124-Straightening gripper, 62-Second clamping and straightening mechanism, 63-Third driving component, 64-Fifth support plate, 65-Support base; 200-Clamp, 201-Clamp base, 202-Clamp top cover, 203-Elastic element, 204-Allowing space, 205-Screw, 206-Positioning groove. Detailed Implementation

[0018] Please refer to Figures 1-13 This embodiment is an automatic clamping device 100 for short wire harnesses, which includes: The wire harness feeding device 1 includes a feeding assembly 11 and a cutting module 13; The feeding device 2 includes a first clamping module 23, a second clamping module 26, a first driving member 21 and a second driving member 24. The first driving member 21 drives the first clamping module 23 and the second clamping module 26 to move simultaneously in a first direction, and the second driving member 24 drives the second clamping module 26 to move along a second direction. The first direction is perpendicular to the second direction. The U-shaped device 3 includes a first rotary drive 33 and a first clamping assembly 34 driven by the first rotary drive 33 to rotate about a horizontal axis. The first rotary drive 33 is connected to the movable end of the first drive module 31. The clamp conveying device 4 includes a feeding conveyor line 41, a discharging conveyor line 42, and a transfer positioning mechanism 43 located at one end of the feeding conveyor line 41 and the discharging conveyor line 42. The clamping and straightening device 6 includes a first clamping and straightening mechanism 61, a second clamping and straightening mechanism 62, and a third driving member 63 that drives the first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62 to move simultaneously to the transfer positioning mechanism 43. The locking module 5 includes a locking member 51 and a locking drive member 52.

[0019] The feeding assembly 11 includes a feeding rack 111, several roll frames 112 arranged on the side of the feeding rack 111, and a first motor 113 that drives the roll frames 112 to rotate. The first motor 113 is mounted on the feeding rack 111, and the wire harness rolls are sleeved on the roll frames 112 and rotate together with the roll frames 112. The cutting module 13 includes a cutter 131 and a cutting support plate 132 that cooperate with each other. Both the cutter 131 and the cutting support plate 132 are driven by a first cylinder 133 to move up and down. When the cutter 131 moves downward to cut, the cutting support plate 132 moves upward and supports the bottom of the wire harness. A guide mechanism 12 and a clamping assembly 14 are also provided between the feeding assembly 11 and the cutting module 13. The cutting module 13 and the clamping assembly 14 are mounted together on a first support frame 15. The clamping assembly 14 includes a clamping cylinder 141 and a pair of clamping rods 142 driven by the clamping cylinder 141 to open or clamp. One clamping rod 142 has several grooves that conform to the shape of the wire harness, and the other clamping rod 142 has several corresponding ribs. The wire harness is positioned in the grooves, and the ribs clamp the wire harness to achieve precise positioning. In this embodiment, three clamping assemblies 14 are provided along the length of the wire harness to ensure clamping stability. In other embodiments, the number of clamping assemblies 14 can be set according to actual conditions. The guiding mechanism 12 includes several support columns 121, a wire block 122 that is movably mounted on the support columns 121, a first sensor 125 located below the wire block 122, and several guide wheel sets 123. The wire block 122 is provided with a clearance through hole 124 for the wire harness to pass through. The first sensor 125 is used to sense the position of the wire block 122. When the first sensor 125 can detect the wire block 122, the wire block 122 is in a low position, and it is determined that the length of the wire bundle released from the wire bundle roll is sufficient, and the feeding stops. If the first sensor 125 cannot detect the wire block 122, the wire block 122 is in a high position, and it is determined that the length of the wire bundle released from the wire bundle roll is insufficient, and the feeding should start.

[0020] The movable end of the first driving member 21 is connected to the first support plate 22. The first clamping module 23 is connected to one end of the first support plate 22 and is close to the cutting module 13. The second driving member 24 is disposed on the first support plate 22, and the movable end of the second driving member 24 is connected to the second support plate 25. The second clamping module 26 is disposed on the second support plate 25. The first clamping module 23 includes a second cylinder 231, a third support plate 232 driven by the second cylinder 231 to move along a first direction, and a first clamping unit 233 disposed on the third support plate 232. The first direction is perpendicular to the second direction. In this embodiment, the first direction is the Y direction and the second direction is the X direction. The first clamping unit 233 includes a base 2331, a sliding plate 2332 slidably disposed on the base 2331, a third cylinder 2333 driving the sliding plate 2332 to slide in a third direction, a pair of sliding blocks 2334 slidable in a fourth direction and disposed on the base 2331, and a pair of first grippers 2335 disposed on the pair of sliding blocks 2334. Each sliding block 2334 is fixedly provided with a cam 2336, and the base 2331 is provided with a set of first grooves extending in the fourth direction. 2337. A set of second sliding grooves 2338 are provided on the sliding plate 2332, and the set of second sliding grooves 2338 are roughly "V" shaped. One end of the cam 2336 extends into both the first sliding groove 2337 and the second sliding groove 2338. When the third cylinder 2333 drives the sliding plate 2332 to move in a third direction, it can drive the cam 2336 to move closer or further away from each other in a fourth direction within the first sliding groove 2337, thereby realizing the opening or clamping action of a pair of first grippers 2335. The base 2331 is provided with a first guide groove 2339 for the sliding plate 2332 to slide and a second guide groove 23310 for the sliding block 2334 to slide. One of the first grippers 2335 is provided with several grooves that conform to the shape of the wire harness, and the other first gripper 2335 is provided with several corresponding ribs. The wire harness is positioned in the groove, and the ribs press the wire harness to achieve precise positioning of the wire harness.

[0021] The third direction is perpendicular to the fourth direction, and the fourth direction is the Z direction, so that the pair of first grippers 2335 can open or close vertically. The second clamping module 26 has the same or similar structure as the first clamping unit 233, the difference being that the first clamping unit 233 and the second clamping module 26 are arranged in different directions. The first clamping unit 233 is arranged along the Y direction, so the third direction at the first clamping unit 233 is the Y direction, and the second clamping module 26 is arranged along the X direction, so the third direction at the second clamping module 26 is the X direction.

[0022] In this embodiment, two U-shaped devices 3 are arranged side by side. The two U-shaped devices 3 simultaneously complete the U-shaped action of clamping several wire harnesses on the straightening device 6. That is, the several wire harnesses on the straightening device 6 are divided into two groups. One U-shaped device 3 completes the U-shaped action of one group of wire harnesses, and the other U-shaped device 3 completes the U-shaped action of the other group of wire harnesses. In this embodiment, the first drive module 31 is an XY axis drive module. The first rotary drive member 33 is connected to the movable end of the first drive module 31 through the fourth support plate 32. The first clamping assembly 34 includes a clamping cylinder 341 and a pair of second jaws 342 driven by the clamping cylinder 341 to perform unfolding or clamping actions. One of the second jaws 342 is provided with several grooves that conform to the shape of the wire harness, and the other second jaw 342 is provided with several corresponding ribs. The wire harness is positioned in the groove, and at the same time, the ribs press the wire harness to achieve accurate positioning of the wire harness. In other embodiments, a Z-axis drive unit may be added, that is, the first drive module 31 is an XYZ axis drive module.

[0023] The locking module 5 is located directly above the transfer positioning mechanism 43. The locking module 5 includes a locking member 51 and a locking drive member 52 that drives the locking member 51 to move up and down and rotate simultaneously. Both the locking member 51 and the locking drive member 52 are existing technologies and can be designed using existing technologies, so they will not be described in detail here.

[0024] A fifth support plate 64 is provided at the movable end of the third driving member 63. The first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62 are arranged side by side on the fifth support plate 64. The third driving member 63 is vertically adjustable on the support base 65 to facilitate adjustment of the height of the first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62. The first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62 have the same or similar structures, and both include a clamping module 611 and a straightening module 612. The clamping module 611 includes a fifth cylinder 6111, a sixth support plate 6112 driven by the fifth cylinder 6111 to move horizontally, and a first clamping component 6113 and a second clamping component 6114 disposed on the sixth support plate 6112. The first clamping component 6113 is used to clamp one end of the wire harness, and the second clamping component 6114 is used to clamp the other end of the wire harness. The first clamping component 6113 and the second clamping component 6114 have the same structure and both include a clamping cylinder 61131 and a pair of third jaws 61132 driven by the clamping cylinder 61131 to clamp or open. One of the third jaws 61132 is provided with several grooves that conform to the shape of the wire harness, and the other third jaw 61132 is provided with several corresponding ribs. The wire harness is positioned in the grooves, and the ribs press the wire harness to achieve accurate positioning of the wire harness. The straightening module 612 is mounted on the sixth support plate 6112. The straightening module 612 includes a sixth cylinder 6121, a seventh support plate 6122 driven by the sixth cylinder 6121 to move horizontally, a seventh cylinder 6123 mounted on the seventh support plate 6122, and a pair of straightening claws 6124 driven by the seventh cylinder 6123 to perform opening or clamping actions. One straightening claw 6124 is provided with several grooves that conform to the shape of the wire harness, and the other straightening claw 6124 is provided with several corresponding ribs. The wire harness is positioned in the grooves, and at the same time, the ribs press the wire harness. The sixth cylinder 6121 drives the seventh support plate 6122 to move the straightening claws 6124, thereby straightening the bent wire harness. The straightening claw 6124 is located directly in front of the first clamping component 6113 and the second clamping component 6114. The number of grooves on the straightening claw 6124 is twice the number of grooves on the third clamping claw 61132, that is, the straightening claw 6124 can straighten the wire harness on the first clamping component 6113 and the second clamping component 6114 at the same time.

[0025] Each of the clamping rods 142, the second grippers 342, the first grippers 2335, the third grippers 61132, and the straightening grippers 6124 is equipped with several grooves and several ribs, enabling the simultaneous clamping of multiple wire harnesses and achieving a U-shaped action for multiple wire harnesses at the same time, thus improving work efficiency. Moreover, each of the clamping rods 142, the second grippers 342, the first grippers 2335, the third grippers 61132, and the straightening grippers 6124 is equipped with detachable fasteners, such as screws, bolts, and pins. When changing to wire harnesses of different sizes, the fasteners can be loosened and replaced with clamping rods 142, second grippers 342, first grippers 2335, third grippers 61132, and straightening grippers 6124 that are compatible with the wire harness. This provides good flexibility and adaptability to wire harnesses of different sizes, improving the versatility of the wire feeding machine.

[0026] The transfer positioning mechanism 43 includes a first Z-axis drive member 431, a lifting frame 432 driven by the first Z-axis drive member 431 for lifting action, a second rotary drive member 433 mounted on the lifting frame 432, and a positioning seat 434 driven by the second rotary drive member 433 to rotate around the Z-axis. The positioning seat 434 is provided with a positioning sliding groove 435 for supporting the clamp 200 and for the clamp 200 to slide. A limit piece 436 is provided at the end of the positioning seat 434 away from the feeding conveyor line 41. The clamp 200 on the feeding conveyor line 41... The clamp 200 moves onto the positioning seat 434. A limiting piece 436 prevents the clamp 200 from falling off the other end of the positioning seat 434. One side of the positioning seat 434 is equipped with a supporting block 437 that holds the clamp 200, and a fourth cylinder 438 that drives the supporting block 437 to move horizontally. The side of the clamp 200 is equipped with a positioning groove 206 that mates with the supporting block 437. The supporting block 437 engages with the positioning groove 206, restricting the horizontal movement of the clamp 200 when the positioning seat 434 rises. The positioning seat 434 is located directly below the locking module 5. After the positioning seat 434 rises to its position, it facilitates screw tightening. A blocking component 44 is provided at the end of the feeding conveyor line 41 to prevent subsequent clamps from continuing forward. The blocking component 44 includes a second sensor 441, a blocking plate 442 located above the feeding conveyor line 41, and a blocking cylinder 443 that drives the blocking plate 442 to move up and down. A material-pushing assembly 45 is provided at the conveying head of the unloading conveyor line 42. The material-pushing assembly 45 moves the fixture assembled on the positioning seat 434 onto the unloading conveyor line 42. The material-pushing assembly 45 and the locking module 5 are mounted together on the mounting frame 46. The material-pushing assembly 45 includes a material-pushing plate 451 located above the unloading conveyor line 42 and a material-pushing cylinder 452 that drives the material-pushing plate 451 to move along the conveying direction of the unloading conveyor line 42.

[0027] The fixture 200 includes a fixture base 201 and a fixture cover 202. The fixture base 201 is provided with several grooves that conform to the shape of the wire harness and support the wire harness. The fixture cover 202 is provided with several ribs that press against the upper surface of the wire harness. An elastic element 203 is provided in the middle between the fixture base 201 and the fixture cover 202. A clearance space 204 is formed between the fixture base 201 and the fixture cover 202 to allow the wire harness to enter. A screw 205 is screwed into the middle of the fixture cover 202. Both the fixture base 201 and the fixture cover 202 are provided with threaded holes. The wire harness enters into the clearance space 204 from both sides. The locking module 5 tightens the screw 205 onto the fixture base 201 and assembles the fixture base 201 and the fixture cover 202, thereby pressing and positioning the wire harness on the fixture 200, which facilitates the subsequent processing of the wire harness. The fixture base 201 has a positioning groove on its side. Correspondingly, the positioning seat 434, the third positioning seat 4332, and the second positioning seat 4325 have positioning protrusions at the positioning sliding groove 435. The cooperation between the positioning groove and the positioning protrusion can restrict the movement of the fixture 200 in the Z direction.

[0028] When using the automatic short wire harness clamping device 100 provided in this solution, the wire harness roll is placed on the reel frame 112. Several wire harnesses pass sequentially through the clearance through hole 124, the guide wheel group 123, the clamping assembly 14, and the cutting module 13. The second driving member 24 drives the second clamping module 26 to move along the X direction to the cutting module 13. The first gripper 2335 of the second clamping module 26 clamps the wire harness. The second driving member 24 drives the second clamping module 26 to move in the opposite direction along the X direction, pulling the wire harness out to a set length. Then, the clamping assembly 14 clamps the wire harness. At the same time, the first gripper 2335 of the first clamping unit 233 extends to clamp the wire harness. The cutting module 13 cuts the wire harness. At this time, the first clamping unit 233 and the second clamping module 26 clamp the wire harness. At both ends of the wire harness, the first driving member 21 drives the first support plate 22 to move the first clamping unit 233 and the second clamping module 26 along the Y direction to the clamping module 611, with one end of the wire harness extending into the clamping module 611. The first jaw 2335 of the first clamping module 23 opens, and at the same time, the second cylinder 231 drives the third support plate 232 to retract the first jaw 2335. At this time, the straightening jaw 6124 opens up and down, and the second driving member 24 drives the second support plate 25 to move the second clamping module 26 along the X direction. One end of the wire harness passes through the straightening jaw 6124 and is clamped on the third jaw 61132 of the two first clamping components 6113. The two U-shaped devices 3 start working simultaneously, and the two first driving modules 31 drive the two fourth clamping units 6113 and the second clamping module 26 respectively. The support plate 32 moves along the XY direction so that the two first clamping components 34 clamp the middle of several wire harnesses. Then, the first drive module 31 located at the front drives the fourth support plate 32 to move forward a set distance along the Y direction. At the same time, the first drive module 31 located at the rear drives the fourth support plate 32 to move backward a set distance along the Y direction. The first rotary drive members 33 on the two U-shaped devices 3 drive the first clamping components 34 to rotate the wire harnesses 180° around the Y axis. Then, the two first drive modules 31 respectively drive the two fourth support plates 32 to move the two first clamping components 34 along the X direction, so that the other end of the wire harness passes through the straightening claw 6124 and is clamped in the third claw 61132 of the two second clamping components 6114. The first clamping component 6113 holds one end of the wire harness, which is then gripped by the first clamping component 34 at the middle of the wire harness. This, combined with the first drive module 31, enables the U-shaped action for short wire harnesses. After the U-shaped action is complete, the seventh cylinder 6123 of the straightening module 612 drives the straightening claw 6124 to clamp the wire harness. The sixth cylinder 6121 drives the seventh support plate 6122 to extend, causing the straightening claw 6124 to move a set distance along the length of the wire harness, thus completing the straightening action. Simultaneously with the U-shaped action, the transfer positioning mechanism 43 receives the clamp 200 from the feeding conveyor line 41, and the second rotary drive component 433 drives the positioning seat 434 to rotate 90°.The third driving component 63 drives the fifth support plate 64, which in turn moves the first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62 along the Y direction to directly above the positioning seat 434. Two fifth cylinders 6111 drive the sixth support plate 6112 to move along the Y direction and move away from each other. The first Z-axis driving component 431 drives the lifting frame 432, which in turn raises the positioning seat 434 to between the first clamping and straightening mechanism 61 and the second clamping and straightening mechanism 62. The two clamping modules 611, holding the wire harness, enter the clearance space 204 from both sides of the clamp 200. At this time, the straightening claw 6124 is extended. When the wire harness is inserted into the groove of the clamp, both ends of the clamp 200 enter between the two sets of third claws 61132 and the straightening claws 6124. At this time, the third claws 61... The distance between clamp 132 and straightening claw 6124 is greater than the width of clamp 200, so that the wire harness can be clamped into the groove of the clamp. Then, locking module 5 tightens screw 205 onto clamp base 201, and clamp base 201 and clamp cover 202 are assembled, thereby pressing and positioning the wire harness on clamp 200, realizing the U-shaped action of wire harness and screw locking. Then, the second rotary drive 433 drives positioning seat 434 to rotate 90° in the opposite direction, and the first Z-axis drive 431 drives lifting frame 432 to lower clamp 200 to be flush with unloading conveyor line 42. Material feeding cylinder 452 extends to make material feeding plate 451 move clamp 200 onto unloading conveyor line 42. Clamp 200 with several wire harnesses clamped directly flows to the subsequent workstation for subsequent operations.

[0029] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An automatic clamping device for short wire harnesses, characterized in that, It includes: A wire harness feeding device, comprising a feeding assembly and a cutting module; A material feeding device includes a first clamping module, a second clamping module, a first driving member, and a second driving member. The first driving member drives the first clamping module and the second clamping module to move simultaneously in a first direction, and the second driving member drives the second clamping module to move along a second direction. The first direction is perpendicular to the second direction. A U-shaped device includes a first rotary drive and a first gripping assembly that is driven by the first rotary drive to rotate about a horizontal axis, wherein the first rotary drive is connected to the movable end of a first drive module. A clamp conveying device includes a loading conveyor line, a unloading conveyor line, and a transfer positioning mechanism located at one end of the loading conveyor line and the unloading conveyor line; A clamping and straightening device includes a first clamping and straightening mechanism, a second clamping and straightening mechanism, and a third driving member that drives the first clamping and straightening mechanism and the second clamping and straightening mechanism to move simultaneously toward the transfer and positioning mechanism; Locking module.

2. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: The feeding assembly includes several roll frames and a first motor that drives the roll frames to rotate; the cutting module includes a cutter and a cutting support plate that cooperate with each other, and each of the cutter and the cutting support plate is driven by a first cylinder to move up and down; a guide mechanism and a clamping assembly are provided between the feeding assembly and the cutting module.

3. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: The first driving member has a first support plate connected to its movable end, and the first clamping module is connected to one end of the first support plate and close to the cutting module. The second driving member is disposed on the first support plate, and the second driving member has a second support plate connected to its movable end. The second clamping module is disposed on the second support plate. The first clamping module includes a second cylinder, a third support plate that is driven by the second cylinder to move along the first direction, and a first clamping unit disposed on the third support plate.

4. The automatic clamping device for short wire harnesses as described in claim 3, characterized in that: The first clamping unit includes a base, a sliding plate slidably disposed on the base, a third cylinder for driving the sliding plate to slide in a third direction, a pair of sliding blocks slidable in a fourth direction and disposed on the base, and a pair of first grippers disposed on the pair of sliding blocks. Each sliding block is fixedly provided with a cam. The base is provided with a set of first sliding grooves extending in the fourth direction, and the sliding plate is provided with a set of second sliding grooves.

5. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: Two U-shaped devices are arranged side by side. The first drive module is an XY axis drive module. The first rotary drive component is connected to the movable end of the first drive module through a fourth support plate. The first clamping assembly includes a clamping cylinder and a pair of second grippers that are driven by the clamping cylinder to perform unfolding or clamping actions.

6. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: The transfer positioning mechanism includes a first Z-axis drive, a lifting frame driven by the first Z-axis drive to perform lifting and lowering actions, a second rotary drive mounted on the lifting frame, and a positioning seat driven by the second rotary drive to rotate around the Z-axis. The positioning seat has a limit piece at one end away from the feeding conveyor line, and a holding block that holds against the side of the clamp and a fourth cylinder that drives the holding block to move horizontally on one side of the positioning seat.

7. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: The feeding conveyor line is equipped with a blocking component at the end of the conveying process, and the unloading conveyor line is equipped with a material-pushing component at the beginning of the conveying process.

8. The automatic clamping device for short wire harnesses as described in claim 1, characterized in that: The third driving component has a fifth support plate at its movable end. The first clamping and straightening mechanism and the second clamping and straightening mechanism are arranged side by side on the fifth support plate. Both the first clamping and straightening mechanism and the second clamping and straightening mechanism include a clamping module and a straightening module.

9. The automatic clamping device for short wire harnesses as described in claim 8, characterized in that: The clamping module includes a fifth cylinder, a sixth support plate driven by the fifth cylinder to move horizontally, and a first clamping assembly and a second clamping assembly disposed on the sixth support plate. The first clamping assembly and the second clamping assembly each include a clamping cylinder and a pair of third grippers driven by the clamping cylinder to clamp or open.

10. The automatic clamping device for short wire harnesses as described in claim 9, characterized in that: The straightening module is disposed on the sixth support plate. The straightening module includes a sixth cylinder, a seventh support plate that is driven by the sixth cylinder to move in the horizontal direction, a seventh cylinder disposed on the seventh support plate, and a pair of straightening claws that are driven by the seventh cylinder to perform opening or clamping actions. The straightening claws are located directly in front of the first clamping assembly and the second clamping assembly.

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