An operating gripper for harness production

Abstract

The utility model provides a kind of operating clamping jaw for harness production, including two clamping jaw plates, driving assembly and two connecting rod assemblies, clamping jaw plate includes multiple clamping jaw rods, and recess portion is equipped on the opposite surface of clamping jaw rod;Driving assembly includes lead screw and nut, nut is screwed with the lead screw, and nut can move along the axial direction of the lead screw;Each clamping jaw plate is connected with the nut by one connecting rod assembly respectively;The movement of nut drives two clamping jaw plates to be close to each other or away from each other by connecting rod assembly;When two clamping jaw plates are close, the clamping jaw rod of two clamping jaw plates is staggered arrangement, and the recess portion of staggered arrangement clamping jaw rod forms the clamping space for clamping harness, and the contact area of the clamping jaw rod of two clamping jaw plates is reduced, and sliding friction resistance is reduced.The smooth wire of line bundle is realized.

Description

Technical Field

[0001] This utility model relates to the field of gripper technology, and in particular to an operating gripper for wire harness production. Background Technology

[0002] Wire harnesses are essential components in fields such as electronic equipment, automobiles, and aerospace. They are typically made up of multiple wires or cables bundled together. During the production and assembly of wire harnesses, it is often necessary to clamp, straighten, and move them to designated workstations.

[0003] Currently, automated equipment on production lines often uses grippers to hold wire harnesses. For example, the wire harness wiring device disclosed in patent document CN111262184A uses two opposing grippers with continuous through-grooves machined on their opposing surfaces. During gripping operations, by reducing the opening angle of the two grippers, the wire harness is accommodated within the gripping space formed by the mating of the two V-grooves, thus achieving reliable gripping. During the wire straightening process, the opening angle of the grippers needs to be appropriately increased to provide sufficient clearance tolerance, allowing the grippers to move smoothly along the length of the wire harness for straightening.

[0004] During wire straightening, even with increased gripper opening, the structure dictates that the continuous wall of the V-groove still maintains a large contact area with the wire harness sheath. This surface contact generates significant sliding friction resistance, easily leading to uneven movement. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an operating gripper for wire harness production that effectively reduces wire straightening resistance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A gripper for wire harness production, comprising: Two gripper plates, each gripper plate including a plurality of gripper bars, wherein the opposing surfaces of the gripper bars are provided with recesses; A drive assembly, the drive assembly including a lead screw and a nut, the nut being screwed to the lead screw and the nut being movable along the axial direction of the lead screw; Two linkage assemblies, each of the gripper plates being connected to the nut via one of the linkage assemblies; The movement of the nut drives the two gripper plates to move closer or further apart from each other via the linkage assembly; When the two gripper plates approach each other, the gripper bars of the two gripper plates are staggered, and the recesses of the staggered gripper bars together form a clamping space for clamping the wire harness.

[0007] In a preferred embodiment, the opposing surfaces of the gripper bar include a front opposing surface and a rear opposing surface, and the recessed portion is connected between the front opposing surface and the rear opposing surface. The recessed portion includes: A curved surface that extends to connect the front opposing surface and the inclined surface; An inclined plane that connects the curved surface and the rear opposing surface.

[0008] In a preferred embodiment, the gripper plate includes: A gripper middle plate, which connects the gripper rod and the gripper rear plate; The gripper rear plate has its front end rotatably connected to the housing and its rear end rotatably connected to the connecting rod assembly.

[0009] In a preferred embodiment, the linkage assembly includes: The front lower connecting rod has two ends that are rotatably connected to the front end of the rear plate of the gripper and the housing, respectively, and the front lower connecting rod is located below the gripper plate.

[0010] In a preferred embodiment, the included angle between the middle plate of the gripper and the rear plate of the gripper is 120°-150°.

[0011] In a preferred embodiment, the linkage assembly includes: A front upper connecting rod is rotatably mounted on the housing, and its two ends are rotatably connected to the gripper plate and the rear upper connecting rod, respectively. The upper rear connecting rod has its two ends rotatably connected to the upper front connecting rod and the nut, respectively.

[0012] In a preferred embodiment, the drive assembly further includes a handle, the handle comprising: A front handlebar, which is connected to the nut; The rear handlebar is connected to the housing.

[0013] In a preferred embodiment, a housing is also included, the housing comprising: Front side panel; Middle side panel; The two ends of the lead screw are rotatably connected to the front side plate and the middle side plate, respectively, and a spring is provided between the nut and the middle side plate.

[0014] In a preferred embodiment, the driving component further includes: An electric motor, which is connected to the lead screw drive.

[0015] Compared with existing technologies, this technical solution has the following advantages: The gripper bars of the two gripper plates are staggered, reducing the contact area with the outer sheath of the wire harness and lowering the sliding friction resistance. The operator can move the grippers along the length of the wire harness to achieve smooth combing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the operating gripper for wire harness production described in this utility model; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 This is a cross-sectional view of the operating gripper for wire harness production described in this utility model; Figure 4 for Figure 3 Sectional view along the BB direction; Figure 5 This is a perspective view of the operating gripper for wire harness production described in this utility model.

[0017] In the diagram: 100 gripper plate, 110 gripper rod, 111 recess, 111a curved surface, 111b inclined surface, 112 front opposing surface, 113 rear opposing surface, 120 gripper middle plate, 130 gripper rear plate, 200 drive assembly, 210 lead screw, 220 nut, 230 handle, 231 front handle rod, 232 rear handle rod, 240 motor, 250 spring, 300 linkage assembly, 310 front upper linkage, 320 rear upper linkage, 330 front lower linkage, 400 housing, 410 front side plate, 420 middle side plate, 430 rear side plate, 440 bottom plate, 441 hole, 450 side plate, 510 first axis, 520 second axis, 530 third axis, 540 fourth axis, 550 fifth axis, 560 sixth axis. Detailed Implementation

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0019] Please refer to Figures 1 to 4 An embodiment of this utility model provides an operating gripper for wire harness production, comprising: Two gripper plates 100, each gripper plate 100 including a plurality of gripper bars 110, wherein the opposing surfaces of the gripper bars 110 are provided with recesses 111; A drive assembly 200 includes a lead screw 210 and a nut 220, the nut 220 being screwed to the lead screw 210 and capable of moving along the axial direction of the lead screw 210. Two linkage assemblies 300, each of the gripper plates 100 is connected to the nut 220 via one of the linkage assemblies 300; The movement of the nut 220 drives the two gripper plates 100 to move closer or further apart from each other via the connecting rod assembly 300; When the two gripper plates 100 approach each other, the gripper bars 110 of the two gripper plates 100 are staggered, and the recesses 111 of the staggered gripper bars 110 together form a clamping space for clamping the wire harness.

[0020] When it is necessary to clamp the wire harness, the nut moves away from the gripper plate 100 along the lead screw 210, and the connecting rod assembly 300 drives the two gripper plates 100 to move closer to each other. During the approach process, the gripper rods 110 of the two gripper plates 100 are staggered. The recesses 111 of the staggered gripper rods 110 together form a clamping space for clamping the wire harness, thus reliably clamping the wire harness.

[0021] When a wire straightening operation is required, the nut moves along the lead screw 210 towards the gripper plate 100, causing the two gripper plates 100 to move apart by a certain distance. At this time, because the gripper bars 110 of the two gripper plates 100 are staggered, their contact area with the wire harness sheath is reduced, lowering the sliding friction resistance. The operator can move the grippers along the length of the wire harness to achieve smooth wire straightening.

[0022] like Figure 1 and Figure 2 As shown, the gripper plate 100 includes: Multiple parallel-arranged gripper bars 110; The gripper middle plate 120 connects the gripper rod 110 and the gripper rear plate 130. The gripper rear plate 130 is rotatably connected to the housing 400 at its front end and rotatably connected to the connecting rod assembly 300 at its rear end.

[0023] The gripper middle plate 120 connects the gripper rod 110 and the gripper rear plate 130, serving as a transition and support. (Reference) Figure 1 The length of the rear plate 130 of the gripper is slightly smaller than the length of the middle plate 120 of the gripper.

[0024] The front end of the gripper rear plate 130 is rotatably connected to the housing 400. This connection method allows the gripper plate 100 to rotate around the connection point with the housing 400 under the drive of the connecting rod assembly 300, thereby enabling the two gripper plates 100 to move closer or further apart.

[0025] like Figure 1 and Figure 5 As shown, the linkage assembly 300 further includes: The front lower connecting rod 330 has two ends that are rotatably connected to the gripper plate 100 and the housing 400, respectively, and the front lower connecting rod 330 is located below the gripper plate 100.

[0026] The gripper plate 100 has a first shaft 510 at its front end of the gripper rear plate 130, and a second shaft 520 is provided on the bottom plate 440 of the housing 400. Both the first shaft 510 and the second shaft 520 are arranged vertically. The two ends of the front lower connecting rod 330 are respectively sleeved on the first shaft 510 and the second shaft 520. Through this sleeved arrangement, the front lower connecting rod 330 is rotatably configured with the first shaft 510 and the second shaft 520, allowing the gripper plate 100 to rotate around the first shaft 510 and the second shaft 520. Furthermore, with the axis defined by the second shaft 520 as a reference, the two gripper plates 100 are driven to rotate relative to each other. Under the action of the connecting rod assembly 300, the two gripper plates 100 can move closer or further apart in parallel.

[0027] refer to Figure 1 When the two gripper plates 100 approach each other, the gripper middle plates 120 of the two gripper plates 100 are in contact, and the gripper rods 110 of the two gripper plates 100 are staggered in the vertical direction. Furthermore, the angle between the outer surface of the gripper middle plate 120 and the outer surface of the gripper rear plate 130 is 120°-150°. The angle between the inner surface of the gripper middle plate 120 and the inner surface of the gripper rear plate 130 is 30°-45°. This angle design helps the two gripper plates 100 achieve a more reasonable movement trajectory of the gripper rods 110 during the opening and closing of the grippers, ensuring smooth gripping operations.

[0028] The gripper bar 110 has a relatively small thickness, which is one-seventh the thickness of the gripper middle plate 120. This thinner design allows the gripper bar 110 to more flexibly adapt to the shape of the wire harness when in contact with it, reducing excessive compression of the wire harness. It also helps to reduce the contact area between the gripper and the wire harness, thereby reducing friction and facilitating subsequent wire straightening operations.

[0029] like Figure 1 and Figure 2 As shown, the opposing surfaces of the gripper bar 110 include a front opposing surface 112 and a rear opposing surface 113, and the recessed portion 111 connects the front opposing surface 112 and the rear opposing surface 113. The recessed portion 111 includes: Curved surface 111a, which extends to connect the front opposing surface 112 and the inclined surface 111b; Inclined surface 111b connects the curved surface 111a and the rear opposing surface 113.

[0030] The wire harness is clamped between the curved surfaces 111a of the clamping rods 110 of the two clamping plates 100, and the curved surfaces 111a can better fit the wire harness with a circular cross-section. The inclined surface 111b serves as a transition and guide, helping the wire harness to smoothly enter the recess 111 during the clamping process.

[0031] The length of the front opposing surface 112 is much smaller than the length of the rear opposing surface 113, and the front opposing surface 112 and the rear opposing surface 113 are approximately parallel. During the wire straightening operation, the distance between the two gripper plates 100 is controlled so that the front opposing surfaces 112 of the gripper bars 110 of the two gripper plates 100 are staggered in the lateral direction, and there is no gap between them, to prevent the wire bundle from detaching from the gripper during the wire straightening process.

[0032] like Figure 4 As shown, the linkage assembly 300 includes: The front upper connecting rod 310 is rotatably mounted on the housing 400, and its two ends are rotatably connected to the gripper plate 100 and the rear upper connecting rod 320, respectively. The upper rear connecting rod 320 has two ends that are rotatably connected to the upper front connecting rod 310 and the nut 220, respectively.

[0033] The front upper connecting rod 310 is L-shaped. The front end of the front upper connecting rod 310 and the rear end of the gripper rear plate 130 are respectively sleeved on the third shaft 530. The corner of the upper front upper connecting rod 310 is sleeved on the fourth shaft 540. The fourth shaft 540 is fixed on the side plate 450 of the housing 400. The rear end of the front upper connecting rod 310 and the front end of the rear upper connecting rod 320 are respectively sleeved on the fifth shaft 550. The rear end of the rear upper connecting rod 320 is sleeved on the sixth shaft 560. The sixth shaft 560 is fixed on the nut 220.

[0034] The third axis 530, fourth axis 540, fifth axis 550, and sixth axis 560 are all vertically arranged. The length of the rear upper connecting rod 320 is relatively small. When the nut 220 moves axially on the lead screw 210, the rear upper connecting rod 320 drives the front upper connecting rod 310 to rotate around the fourth axis 540, thereby causing the front upper connecting rod 310 to move the gripper plates 100 closer to or further apart from each other.

[0035] When the nut moves along the lead screw 210 away from the gripper plate 100, the upper front connecting rod 310 rotates inward about the fourth axis 540 to bring the gripper plates 100 closer together. When the nut moves along the lead screw 210 towards the gripper plate 100, the upper front connecting rod 310 rotates outward about the fourth axis 540 to move the gripper plates 100 further apart.

[0036] like Figure 1 , Figures 3 to 5 As shown, the operating gripper for wire harness production also includes a housing 400, the housing 400 comprising: Front side panel 410; Middle side panel 420; The two ends of the lead screw 210 are rotatably connected to the front side plate 410 and the middle side plate 420, respectively.

[0037] The front side plate 410 is smaller in size and is located between the rear jaw plates 130 of the two jaw plates 100.

[0038] like Figure 1 , Figure 3 and Figure 5 As shown, the drive assembly 200 further includes a handle 230, the handle 230 comprising: A front handlebar 231 is connected to the nut 220; The rear handlebar 232 is connected to the housing 400.

[0039] The front handlebar 231 and the rear handlebar 232 are located below the housing 400. The front handlebar 231 passes through the base plate 440 and is connected to the nut 220. The base plate 440 has a hole 441 through which the front handlebar 231 passes. The front handlebar 231 and the nut 220 are connected by screws or fasteners. The rear handlebar 232 is threaded to the base plate 440 of the housing 400. By holding the front handlebar 231 and the rear handlebar 232 and adjusting the distance between them, the nut can be moved axially along the lead screw 210.

[0040] refer to Figure 4 A spring 250 is provided between the nut 220 and the middle side plate 420. Under the elastic force of the spring 250, the nut 220 and the middle side plate 420 maintain a certain distance, that is, the front handlebar 231 and the rear handlebar 232 also maintain a certain distance, and the two gripper plates 100 are far apart from each other. By gripping the front handlebar 231 and the rear handlebar 232, the front handlebar 231 is brought closer to the rear handlebar 232. At this time, the nut 220 moves towards the middle side plate 420, the lead screw 210 rotates adaptively, and compresses the spring 250, that is, it drives the two gripper plates 100 to move closer to each other. After the hand releases the front handlebar 231 and the rear handlebar 232, the nut 220 moves towards the front side plate 410 under the restoring force of the spring 250, returning to the state where the two gripper plates 100 are far apart from each other.

[0041] like Figure 4 As shown, the drive component 200 further includes: Motor 240, which is connected to lead screw 210 for transmission.

[0042] The housing 400 also includes a rear side plate 430. The motor 240 is disposed between the middle side plate 420 and the rear side plate 430. The motor 240 drives the lead screw 210 to rotate in the forward or reverse direction, so that the nut 220 moves along the axial direction of the lead screw 210.

[0043] In practical applications, advanced technologies such as camera capture and sensor detection can be used to achieve more precise and efficient wire harness processing. During the process of clamping the wire harness with handle 230 and straightening the wires, the camera captures the position and status of the wire harness, and sensors detect key parameters such as the distance the nut 220 moves. This detection data provides important information for subsequent automated control. After data detection is completed, handle 230 is removed and motor 240 is installed. Based on the detected data, the rotation of motor 240 is precisely controlled, driving the nut 220 to move at a predetermined distance and speed, thereby automating the wire harness clamping and straightening operations.

[0044] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A gripper for wire harness production, characterized in that, include: Two gripper plates (100) are provided, each gripper plate (100) including a plurality of gripper bars (110), and the opposing surfaces of the gripper bars (110) are provided with recesses (111). A drive assembly (200) includes a lead screw (210) and a nut (220), the nut (220) being screwed to the lead screw (210) and the nut (220) being movable along the axial direction of the lead screw (210); Two linkage assemblies (300), each of the gripper plates (100) is connected to the nut (220) via one of the linkage assemblies (300); The movement of the nut (220) drives the two gripper plates (100) to move closer to or further away from each other via the linkage assembly (300); When the two gripper plates (100) are close together, the gripper bars (110) of the two gripper plates (100) are staggered, and the recesses (111) of the staggered gripper bars (110) together form a clamping space for clamping the wire harness.

2. The operating gripper for wire harness production as described in claim 1, characterized in that, The opposing surfaces of the gripper bar (110) include a front opposing surface (112) and a rear opposing surface (113), and the recess (111) is connected between the front opposing surface (112) and the rear opposing surface (113). The recess (111) includes: A curved surface (111a) extends to connect the front opposing surface (112) and the inclined surface (111b). Inclined surface (111b) connects the curved surface (111a) and the rear opposing surface (113).

3. The operating gripper for wire harness production as described in claim 1, characterized in that, The gripper plate (100) includes: The gripper middle plate (120) is connected to the gripper rod (110) and the gripper rear plate (130). The gripper rear plate (130) is rotatably connected to the housing (400) at its front end and rotatably connected to the connecting rod assembly (300) at its rear end.

4. The operating gripper for wire harness production as described in claim 3, characterized in that, The link assembly (300) includes: The front lower connecting rod (330) has two ends that are rotatably connected to the front end of the gripper rear plate (130) and the housing (400), respectively, and the front lower connecting rod (330) is located below the gripper plate (100).

5. The operating gripper for wire harness production as described in claim 3, characterized in that, The included angle between the middle plate (120) of the gripper and the rear plate (130) of the gripper is 120°-150°.

6. The operating gripper for wire harness production as described in claim 1, characterized in that, The link assembly (300) includes: The front upper connecting rod (310) is rotatably mounted on the housing (400), and the two ends of the front upper connecting rod (310) are rotatably connected to the gripper plate (100) and the rear upper connecting rod (320) respectively. The upper rear link (320) is rotatably connected at both ends to the upper front link (310) and the nut (220), respectively.

7. The operating gripper for wire harness production as described in claim 1, characterized in that, The drive assembly (200) further includes a handle (230), the handle (230) comprising: A front handlebar (231) is connected to the nut (220); The rear handlebar (232) is connected to the housing (400).

8. The operating gripper for wire harness production as described in claim 1, characterized in that, It also includes a housing (400), the housing (400) comprising: Front side panel (410); Middle side panel (420); The two ends of the lead screw (210) are rotatably connected to the front side plate (410) and the middle side plate (420) respectively, and a spring (250) is provided between the nut (220) and the middle side plate (420).

9. The operating gripper for wire harness production as described in claim 1, characterized in that, The drive component (200) further includes: The motor (240) is connected to the lead screw (210) for transmission.

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