Automatic fixing tool for wire harness with closed end

Abstract

An automatic wire harness fixing fixture with end closing is disclosed. This invention relates to the field of auxiliary tooling technology for automobile production. A stepping frame is mounted on a machine frame, and a stepping mechanism is mounted on the machine frame and is configured to cooperate with the stepping frame. Two clamping mechanisms are symmetrically arranged at both ends of the stepping frame. A winding mechanism is mounted on the machine frame and is positioned between the clamping mechanisms on both sides. By setting clamping structures at both ends of the wire harness, the fixture clamps and tensions the wire harness. Then, in conjunction with a drive structure that rotates around the wire harness, it releases adhesive tape and winds and fixes the wire harness. The structure is based on rotating and winding around the clamped wire harness, which facilitates the closing of the winding end.

Description

Technical Field

[0001] This invention relates to the field of auxiliary tooling technology for automobile production, and specifically to an automatic tooling fixture for securing the end of a wire harness. Background Technology

[0002] The connecting wires between internal automotive parts are usually made into wire harness structures to facilitate the management of multiple wire harnesses. Typically, when making wire harnesses from multiple connecting wires, a method of securing them by wrapping them with adhesive tape is used. This method involves wrapping the fabric-based adhesive tape around the outside of the wire harness to achieve secure binding, making it suitable for harsh working environments and less prone to loosening during use. However, current technology still relies on manual handling and wrapping in the tape-wrapping process, resulting in low production efficiency and uncontrollable quality control. Furthermore, some workers, in pursuit of efficiency, do not perform meticulous finishing at the ends of the wrapping, making the tape prone to loosening. Therefore, there is a need to develop an automated wire harness tape-wrapping and securing device. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies and shortcomings of the prior art by providing an automatic wire harness fixing fixture for end closing. It achieves the clamping and tensioning of the wire harness by setting up clamping structures at both ends of the wire harness, and then, in conjunction with a drive structure that rotates around the wire harness, it achieves the feeding of adhesive tape and the winding and fixing of the wire harness. Moreover, the structure is based on rotating and winding around the clamped wire harness, which facilitates the closing of the winding end.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions: It includes a frame and a stepper frame, wherein the stepper frame is mounted on the frame. It also includes: A stepping mechanism is mounted on a frame and is configured to cooperate with a stepping frame. The clamping mechanism consists of two clamping mechanisms symmetrically arranged at both ends of the stepper frame; The winding mechanism is mounted on the frame and positioned between the clamping mechanisms on both sides.

[0005] Preferably, the stepping mechanism comprises: Stepper slide rails, wherein two stepper slide rails are symmetrically fixed on the frame; The load-bearing bracket consists of two symmetrically fixed brackets on the upper side wall of the stepping frame, and the load-bearing brackets are slidably mounted on the stepping slide rail. An electric stepper unit is fixedly mounted on the inner wall of the frame and mounted above the stepper frame. The stepper seat is fixedly mounted on the upper side wall of the stepper frame and is configured in conjunction with the electric stepper unit.

[0006] Preferably, the clamping mechanism comprises: Mounting bracket, wherein the mounting bracket is fixedly mounted on the stepper frame, and there are two mounting brackets symmetrically arranged at both ends of the stepper frame; Mounting base, wherein the mounting base is fixedly mounted on the mounting frame; Guide rods, several of which are fixedly mounted on the mounting base, and the guide rods are distributed at equal angles with the axis of the mounting base as the center; Guide seat, wherein the guide seat is movably sleeved on the guide rod; A gripper assembly is disposed on a guide seat.

[0007] Preferably, the gripper assembly comprises: A gripper seat, wherein the gripper seat is fixedly mounted on a guide seat; A gripper holder, wherein the gripper holder is fixedly mounted on one side wall of the gripper seat; The gripper teeth are fixedly mounted on the other side wall of the gripper seat, and extend into the gripper frame on the adjacent gripper seat.

[0008] Preferably, a drive seat is spun onto the mounting base via a bearing. The drive seat has several guide grooves distributed at equal angles around its axis, and the guide grooves correspond one-to-one with the guide seats on the mounting base. A guide pin is fixedly mounted on the guide seat and slides within the guide groove. The guide groove is an arc-shaped structure with one end pointing away from the axis of the guide seat.

[0009] Preferably, the mounting bracket is spun onto a clamping shaft via a bearing, and the clamping shaft is coaxially aligned with the guide seat. A mounting sleeve is fixedly mounted on the drive seat. The clamping shaft is screwed into the mounting sleeve via a bearing. A buffer torsion spring is sleeved and fixedly mounted on the clamping shaft, and the movable column foot of the buffer torsion spring is fixedly mounted on the mounting sleeve. A clamping motor is fixedly mounted on the mounting bracket, and the output shaft of the clamping motor is connected to the clamping shaft via a spur gear set.

[0010] Preferably, the winding mechanism comprises: A support frame is fixedly mounted on the machine frame and positioned between the mounting brackets on both sides. A winding frame, wherein the winding frame is spun onto a support frame via bearings; A platform assembly, wherein the platform assembly is mounted on a winding frame; A wound motor, wherein the wound motor is fixedly mounted on a support frame; The main gear is fixedly mounted on the output shaft of the wound motor. The ring gear is fixedly mounted on the winding frame, and the main gear and the ring gear are meshed with each other.

[0011] Preferably, the stage assembly comprises: A threaded rod, wherein the threaded rod is fixedly mounted on the winding frame; A clamping disc, wherein the clamping disc is threadedly fitted onto a threaded rod; The tensioning shafts are several in number and are distributed at equal angles around the axis of the threaded rod and are screwed onto the winding frame via bearings. The tensioning claw is fixedly mounted on the tensioning shaft; The tensioning torsion spring is sleeved and fixed on the tensioning shaft, and the movable column foot of the tensioning torsion spring is fixed on the winding frame. The central gear is screwed onto the threaded rod via a bearing. The planetary gear is fixedly mounted on the tensioning shaft and meshes with the central gear.

[0012] Preferably, a positioning frame is fixedly installed on the winding frame, and a guide roller is spun on the positioning frame via a rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This solution addresses the issue of securing wire harnesses with adhesive tape. It includes a clamping structure for the wire harness and a winding structure that can rotate around the clamped wire harness. This allows the wire harness to be secured by wrapping it with adhesive tape, and the feeding structure does not need to cross the wire harness during the winding process. This enables the tape to be quickly cut off and sealed after the wrapping and securing are completed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 The right front side view; Figure 3 yes Figure 1 Left rear side view; Figure 4 This is a structural schematic diagram of the frame, load-bearing bracket, and electric stepper unit in this invention; Figure 5 This is a schematic diagram of the structure of the support frame, winding frame, and platform assembly in this invention; Figure 6 yes Figure 5 Rear side view; Figure 7 This is a schematic diagram of the clamping mechanism in this invention; Figure 8 yes Figure 7The rear side view in the middle.

[0015] Explanation of reference numerals in the attached drawings: Frame 1, Stepper frame 2, Stepper mechanism 3, Stepper slide rail 3-1, Load-bearing bracket 3-2, Electric stepper unit 3-3, Stepper seat 3-4, Clamping mechanism 4, Mounting frame 4-1, Mounting seat 4-2, Guide rod 4-3, Guide seat 4-4, Claw assembly 5, Claw seat 5-1, Claw frame 5-2, Claw teeth 5-3, Winding mechanism 6, Support frame 6-1, Winding frame 6-2, Winding motor 6-3, Main gear 6-4, Ring gear 6-5, Platform assembly 7, Threaded rod 7-1, Clamping disc 7-2, Tensioning shaft 7-3, Tensioning claw 7-4, Tensioning torsion spring 7-5, Center gear 7-6, Planetary gear 7-7, Drive seat 8, Guide groove 9, Guide pin 10, Clamping shaft 11, Mounting sleeve 12, Buffer torsion spring 13, Clamping motor 14, Positioning frame 15, Guide roller 16. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1-8 As shown, the specific implementation adopts the following technical solution: This specific embodiment includes a frame 1 and a stepping frame 2. The stepping frame 2 is mounted on the frame 1 via a stepping mechanism 3. Two sets of clamping mechanisms 4 are symmetrically arranged on the stepping frame 2. A winding mechanism 6 is mounted on the frame 1 and is located between the two sets of clamping mechanisms 4. The stepping mechanism 3 includes a stepping slide rail 3-1 and a load-bearing bracket 3-2. There are two stepping slide rails 3-1, which are symmetrically fixed on the lower side wall of the frame 1. There are two load-bearing brackets 3-2, which are symmetrically fixed on the upper side wall of the stepping frame 2. The load-bearing brackets 3-2 are slidably disposed in the stepping slide rail 3-1. An electric stepping unit 3-3 is fixedly disposed on the frame 1. The electric stepping unit 3-3 has a wheel drive structure. A stepping seat 3-4 is fixedly disposed on the upper side wall of the stepping frame 2. The stepping seat 3-4 abuts against the drive wheel on the electric stepping unit 3-3. The stepping seat 3-4 is integrally formed and has anti-slip texture that cooperates with the drive wheel. The clamping mechanism 4 includes a mounting frame 4-1, a mounting base 4-2, a guide seat 4-4, and a gripper assembly 5. Two mounting frames 4-1 are symmetrically fixed to the front and rear ends of the stepper frame 2. Two mounting bases 4-2 are fixed to the mounting frames 4-1 on both sides. Three sets of guide rods 4-3 are fixedly arranged at equal angles on the mounting bases 4-2. The guide seats 4-4 are movably sleeved on the guide rods 4-3. The gripper assembly 5 is mounted on the guide seats 4-4, thus the three gripper assemblies 5 on one mounting base 4-2 are arranged at equal angles. The gripper assembly 5 includes a gripper seat 5-1, a gripper frame 5-2, and gripper teeth 5-3. The gripper seat 5-1 is fixed to the guide seat 4-4, and the gripper frame 5-2 and gripper teeth 5-3 are integrally formed on the gripper seat 5-1. Gear 5-3 is inserted into gripper frame 5-2 on adjacent gripper seat 5-1; drive seat 8 is screwed onto mounting seat 4-2 via bearing, drive seat 8 has three guide slots 9, guide pin 10 is fixedly installed on guide seat 4-4, and guide pin 10 is movably inserted into guide slot 9, guide slot 9 is an arc-shaped structure that gradually deviates from the axis of drive seat 8 at one end; clamping shaft 11 is screwed onto mounting frame 4-1 via bearing, mounting sleeve 12 is fixedly installed on drive seat 8, end of clamping shaft 11 is screwed into mounting sleeve 12 via bearing, buffer torsion spring 13 is sleeved and fixed on clamping shaft 11, and the movable column foot of buffer torsion spring 13 is fixedly installed on mounting sleeve 12; clamping motor 14 is fixedly installed on mounting frame 4-1, and the output shaft of clamping motor 14 is connected to clamping shaft 11 via spur gear transmission; The winding mechanism 6 includes a support frame 6-1, a winding frame 6-2, and a winding motor 6-3. The support frame 6-1 is fixedly mounted on the machine frame 1 and positioned between the mounting brackets 4-1 on the front and rear sides. The winding frame 6-2 is screwed onto the support frame 6-1 via bearings. A ring gear 6-5 is sleeved and fixedly mounted on the winding frame 6-2. The winding motor 6-3 is fixedly mounted on the support frame 6-1. A main gear 6-4 is fixedly mounted on the output shaft of the winding motor 6-3, and the main gear 6-4 meshes with the ring gear 6-5. A platform assembly 7 is mounted on the winding frame 6-2. The platform assembly 7 includes a threaded rod 7-1, a tensioning shaft 7-3, and a tensioning claw 7-4. The threaded rod 7-1 is fixedly mounted on the winding frame 6-2, and... A clamping disc 7-2 is screwed onto the threaded rod 7-1. Three tensioning shafts 7-3 are evenly distributed around the threaded rod 7-1 on the winding frame 6-2, and the tensioning shafts 7-3 are screwed onto the winding frame 6-2 via bearings. Tensioning claws 7-4 are fixedly installed on the tensioning shafts 7-3. Planetary gears 7-7 are fixedly installed on the tensioning shafts 7-3. A central gear 7-6 is screwed onto the threaded rod 7-1 via bearings. The three planetary gears 7-7 are respectively meshed with the central gear 7-6. A tensioning torsion spring 7-5 is fixedly installed on the tensioning shafts 7-3, and the movable end of the tensioning torsion spring 7-5 is fixedly installed on the winding frame 6-2. A positioning frame 15 is fixedly installed on the winding frame 6-2, and a guide roller 16 is screwed onto the positioning frame 15 via a rotating shaft.

[0018] When using this device, remove the clamping disc 7-2 from the threaded rod 7-1. Then, turn one of the tensioning jaws 7-4, causing the tensioning shaft 7-3 connected to it to rotate. This, through the transmission between the planetary gear 7-7 and the central gear 7-6, causes all the tensioning jaws 7-4 to rotate and close, tightening the tensioning torsion spring 7-5 connected to the tensioning shaft 7-3. Next, roll the tape around the threaded rod 7-1 and release the tensioning jaws 7-4, causing them to open synchronously and press against the tensioning shaft 7-5. On the inner wall of the tape roll, the clamping disc 7-2 is screwed onto the threaded rod 7-1 to hold the tape roll in place. The end of the tape is then unfolded and wound around the guide roller 16. The stepping frame 2 is moved by the cooperation of the electric stepping unit 3-3 and the stepping seat 3-4, causing the frame 1 to move to one side of the stepping frame 2. The wire harness that needs to be secured with tape is then clamped by the clamping mechanisms 4 on both sides, extending the end of the wire harness between the three gripper assemblies 5. The clamping motor 14 then drives... The clamping shaft 11 rotates, and the clamping shaft 11 achieves transmission through the connection between the buffer torsion spring 13 and the mounting sleeve 12. This, in turn, drives the drive seat 8 to rotate via the mounting sleeve 12. The drive seat 8 then guides the guide pin 10 through the guide groove 9, and the guide seat 4-4 through the guide rod 4-3. This allows the drive seat 8 to push the guide pin 10 through the guide groove 9, which in turn pushes the guide seat 4-4 to move on the guide rod 4-3. This, in turn, causes the gripper assembly 5 to clamp, and then, through the cooperating gripper frame 5-2 and grippers… The teeth 5-3 close and clamp the ends of the wire harness. After both ends of the wire harness are clamped, the electric stepper unit 3-3 drives the stepper frame 2 to move, thereby moving the wire harness. The winding motor 6-3 drives the winding frame 6-2 to rotate, thereby rotating the tape around the wire harness. At the same time, in conjunction with the movement of the wire harness, the tape is wrapped around and fixed to the wire harness. After the stepper frame 2 moves to the other end, the tape attached to the wire harness is manually cut and manually glued. The wire harness clamped by the gripper assembly 5 can then be removed.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. This device drives three sets of gripper assemblies 5 guided by guide rods 4-3 to open and close through a drive seat 8 with guide groove 9, forming a three-jaw centering gripper structure. This allows the wire harness to be clamped and straightened during the tape wrapping and fixing process, which facilitates the subsequent wrapping process. In addition, the stepping frame 2 drives the clamping mechanism 4 to move, thereby moving the wire harness and enabling the tape wrapping and fixing of the wire harness from one end to the other. 2. This device, through the cooperation of the support frame 6-1 and the winding frame 6-2, drives the entire roll of tape to rotate, thereby achieving the winding and fixing of the fixed wire harness. It is also equipped with a tension claw 7-4 structure to achieve the installation and fixing of tapes of different specifications, making it convenient to adapt to different tape feeding and installation.

[0020] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. An automatic wire harness fixing fixture for end capping, comprising a frame (1) and a stepper frame (2), wherein the stepper frame (2) is mounted on the frame (1); characterized in that, It also includes: Stepping mechanism (3), the stepping mechanism (3) is mounted on the frame (1), and the stepping mechanism (3) is configured in conjunction with the stepping frame (2); Clamping mechanism (4), wherein there are two clamping mechanisms (4) and they are symmetrically arranged at both ends of the stepper frame (2); The winding mechanism (6) is mounted on the frame (1) and is positioned between the clamping mechanisms (4) on both sides.

2. The automatic wire harness fixing fixture for end-closing according to claim 1, characterized in that: The stepping mechanism (3) includes: Stepping slide rail (3-1), wherein there are two stepping slide rails (3-1) which are symmetrically fixed on the frame (1); The load-bearing bracket (3-2) consists of two symmetrically fixed brackets on the upper side wall of the stepping frame (2), and the load-bearing bracket (3-2) is slidably mounted on the stepping slide rail (3-1); Electric stepper unit (3-3), the electric stepper unit (3-3) is fixedly installed on the inner wall of the frame (1), and the electric stepper unit (3-3) is mounted above the stepper frame (2); Stepper seat (3-4) is fixedly mounted on the upper side wall of the stepper frame (2), and the stepper seat (3-4) is configured in conjunction with the electric stepper unit (3-3).

3. The automatic wire harness fixing fixture for end-closing according to claim 2, characterized in that: The clamping mechanism (4) includes: Mounting bracket (4-1), wherein the mounting bracket (4-1) is fixedly mounted on the stepper frame (2), and there are two mounting brackets (4-1) symmetrically arranged at both ends of the stepper frame (2); Mounting base (4-2), wherein the mounting base (4-2) is fixedly mounted on the mounting frame (4-1); Guide rods (4-3), several of which are fixedly mounted on the mounting base (4-2), and the guide rods (4-3) are distributed at equal angles with the axis of the mounting base (4-2) as the center; Guide seat (4-4), wherein the guide seat (4-4) is movably sleeved on the guide rod (4-3); The gripper assembly (5) is disposed on the guide seat (4-4).

4. The automatic wire harness fixing fixture for end-closing according to claim 3, characterized in that: The gripper assembly (5) includes: The gripper seat (5-1) is fixedly mounted on the guide seat (4-4); The gripper frame (5-2) is fixedly mounted on one side wall of the gripper base (5-1); The gripper teeth (5-3) are fixedly installed on the other side wall of the gripper seat (5-1), and the gripper teeth (5-3) extend into the gripper frame (5-2) on the adjacent gripper seat (5-1).

5. The automatic wire harness fixing fixture for end-closing according to claim 4, characterized in that: The mounting base (4-2) is spun on with a drive seat (8) via a bearing. The drive seat (8) has several guide grooves (9) distributed at equal angles with its axis as the center. The guide grooves (9) correspond one-to-one with the guide seats (4-4) on the mounting base (4-2). The guide seat (4-4) is fixedly provided with a guide pin (10), and the guide pin (10) is slidably disposed in the guide groove (9). The guide groove (9) is an arc-shaped structure with one end pointing away from the axis of the guide seat (4-4).

6. The automatic wire harness fixing fixture for end-closing according to claim 5, characterized in that: The mounting bracket (4-1) is provided with a clamping shaft (11) spun on by a bearing, and the clamping shaft (11) is coaxially arranged with the guide seat (4-4). The drive seat (8) is fixedly provided with a mounting sleeve (12). The clamping shaft (11) is inserted into the mounting sleeve (12) by a bearing. A buffer torsion spring (13) is sleeved and fixed on the clamping shaft (11), and the movable column foot of the buffer torsion spring (13) is fixedly arranged on the mounting sleeve (12). The mounting bracket (4-1) is fixedly provided with a clamping motor (14). The output shaft of the clamping motor (14) is connected to the clamping shaft (11) by a spur gear set.

7. The automatic wire harness fixing fixture for end-closing according to claim 6, characterized in that: The winding mechanism (6) comprises: The support frame (6-1) is fixedly mounted on the frame (1) and is positioned between the mounting frames (4-1) on both sides; The winding frame (6-2) is spun onto the support frame (6-1) via bearings; Platform assembly (7), said platform assembly (7) is mounted on winding frame (6-2); A wound motor (6-3) is fixedly mounted on a support frame (6-1); The main gear (6-4) is fixedly mounted on the output shaft of the wound motor (6-3); The ring gear (6-5) is fixedly mounted on the winding frame (6-2), and the main gear (6-4) and the ring gear (6-5) are meshed with each other.

8. The automatic wire harness fixing fixture for end-closing according to claim 7, characterized in that: The stage assembly (7) includes: Threaded rod (7-1), the threaded rod (7-1) is fixedly mounted on the winding frame (6-2); The clamping disc (7-2) is threadedly fitted onto the threaded rod (7-1); Tensioning shafts (7-3), there are several tensioning shafts (7-3) and they are distributed at equal angles with the axis of the threaded rod (7-1) as the center and are screwed onto the winding frame (6-2) by bearings; Tensioning claw (7-4), wherein the tensioning claw (7-4) is fixedly mounted on the tensioning shaft (7-3); The tensioning torsion spring (7-5) is sleeved and fixed on the tensioning shaft (7-3), and the movable column foot of the tensioning torsion spring (7-5) is fixed on the winding frame (6-2); The central gear (7-6) is screwed onto the threaded rod (7-1) via a bearing; Planetary gear (7-7) is fixedly mounted on tension shaft (7-3) and meshes with central gear (7-6).

9. The automatic wire harness fixing fixture for end-closing according to claim 8, characterized in that: A positioning frame (15) is fixedly installed on the winding frame (6-2), and a guide roller (16) is spun on the positioning frame (15) via a rotating shaft.

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