Full-automatic adhesive tape winding machine head module and method

Abstract

The invention discloses a full-automatic adhesive tape winding machine head module and method, and belongs to the field of wiring harness production automation equipment. The device comprises a rotary driving wheel assembly, a clamping jaw swing arm assembly and an automatic adhesive tape cutting mechanism which are installed on a module base. The front portion of the module base is rotationally connected with a rotating movable wheel assembly, and the adhesive tape head clamping mechanism can clamp the adhesive tape near the position to be cut. The clamping jaw swing arm assembly is located below the rotary driving wheel assembly and can move up and down and rotate around a shaft, and the adhesive tape clamping jaw assembly can clamp an adhesive tape head; the automatic adhesive tape cutting mechanism is located on the rear portion of the rotating movable wheel assembly. The adhesive tape cutter can move between the adhesive tape cutting position and the avoiding position, and the adhesive tape at the fracture can be cut off at the adhesive tape cutting position. According to the invention, preparation, reliable pre-adhesion, continuous winding and automatic cutting ending of the adhesive tape can be automatically completed, and manual intervention is not needed in the whole process; the structure design is compact, and the wire harness can be wound to the position close to the root. Meanwhile, due to the modular design, multi-link transplantation application can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of automated equipment for wire harness production, and particularly relates to a compact head module and method that can automatically complete tasks such as tape preparation, pre-sticking, winding, and cutting. Background Art

[0002] With the rapid development of new energy vehicles, the requirements for automation in related wire harness production are getting higher and higher. Different from the wire harness design of traditional fuel vehicles (small wire diameters, multiple branches, complex structures, etc., which are not conducive to the implementation of automated production), the wire harness design of new energy vehicles is more inclined to and more conducive to the implementation of fully automated production lines. However, traditional semi-automatic tape winding equipment has difficulty meeting the usage requirements in fully automated scenarios (such as robotic encapsulation, tape winding in an integrated automated production line, etc.). Based on the common knowledge of those skilled in the art, the tape winding process includes actions such as pre-sticking the tape head, continuous winding stage, tape cutting, and tape finishing. Existing semi-automatic tape winding equipment only performs well in the continuous winding stage, while the pre-sticking of the tape and the finishing cutting of the tape still rely on manual intervention by the operator to complete. This makes tape winding a bottleneck in the fully automated production of wire harnesses. For a considerable part of new energy wire harnesses, the upstream and downstream technological processes of tape winding have achieved good automated production rhythms, but only the tape winding link (continuous winding) has not been well connected to the upstream and downstream.

[0003] Some equipment manufacturers in the industry have also tried to develop equipment modules that can automatically complete tape preparation, tape pre-sticking, continuous winding, and cutting. From the perspective of each independent function, the fully automated action process has indeed been achieved. However, the existing technology is only a simple patchwork design of various functional structures, which is a non-standard and non-modular design and has no problem in application in some simple links. But the main problems are as follows: 1. The structural design is bloated, occupying too much equipment usage space. Especially the horizontal design dimensions (static and dynamic) are too large, encroaching on too much tape winding space, resulting in too large a distance between the starting and ending positions of tape winding from the wire harness connector or intermediate branch node, not meeting the requirements of the drawing design; 2. This non-standard and non-modular design structure is difficult to transplant and apply, lacking universality, and requires re-designing and arranging the structure when changing an application link; 3. Due to the bloated structural design, the weight will also become correspondingly large. In the application link of robotic encapsulation, a larger specification robotic arm needs to be selected to support, increasing the corresponding application cost.

[0004] Therefore, in the industry, there is an urgent need for a tape winding equipment with a compact structure, stable performance, and capable of automatically completing tape preparation, winding, and cutting. Summary of the Invention

[0005] The object of the present invention is to overcome the defects in the prior art and provide a fully automatic tape winding head module and method.

[0006] The specific technical solutions adopted by the present invention are as follows:

[0007] In a first aspect, the present invention provides a fully automatic tape winding head module, including a rotating moving wheel assembly, a jaw swing arm assembly, and a tape automatic cutting mechanism mounted on a module base;

[0008] The front part of the module base is rotatably connected with the rotating moving wheel assembly, and an opening for the wire harness to enter the inside of the rotating moving wheel assembly is provided at the front end; the rotating moving wheel assembly can wind the tape around the outer periphery of the wire harness by rotation, and can clamp the tape near the position to be cut through a tape head clamping mechanism;

[0009] The jaw swing arm assembly is located below the rotating moving wheel assembly and can move up and down and rotate around an axis, and the tape jaw assembly can clamp the tape head;

[0010] The tape automatic cutting mechanism is located at the rear of the rotating moving wheel assembly; the tape cutter can move between a tape cutting position and a retracted position, and can cut the tape at the break at the tape cutting position.

[0011] Preferably, the rotating moving wheel assembly includes a moving wheel, a film reel fixing shaft, a tape guide roller, a tape deflection guide roller, a counterweight, and a tape head clamping mechanism;

[0012] The moving wheel is of an arc structure, and a transmission tooth is provided on the outer periphery; the film reel fixing shaft is fixed on the upper part of the moving wheel through a film reel fixing bracket for coaxially fixing the tape reel and enabling the tape reel to rotate together along the central axis; the tape guide roller and the tape deflection guide roller are both fixed on the upper part of the moving wheel, and the tape unwound from the tape reel can pass through the guiding actions of the tape guide roller and the tape deflection guide roller in sequence to be in a vertically downward state and the adhesive surface of the tape faces the opening of the module base; the counterweight is located at the lower part of the moving wheel for balancing the gravity of the upper part of the moving wheel;

[0013] The tape head clamping mechanism comprises a driven side tape clamping arm, a clamping arm synchronous gear, a clamping arm guide rail and a driving side tape clamping arm; the clamping arm guide rail is fixed to the upper part of the driving wheel, and the driven side tape clamping arm and the driving side tape clamping arm are respectively slidably connected to the clamping arm guide rail through a slider; the inner sides of the driven side tape clamping arm and the driving side tape clamping arm are provided with a toothed structure, and the two are respectively meshed with the clamping arm synchronous gear to couple into a linkage structure; the driving side tape clamping arm is driven to slide along the clamping arm guide rail by the output end of the tape clamping driving cylinder fixed on the module base, so that the clamping arm synchronous gear meshes and rotates, driving the driven side tape clamping arm to slide along the clamping arm guide rail, so that the driven side tape clamping arm and the driving side tape clamping arm are close to each other and perform opposite clamping movements; the driven side tape clamping arm and the driving side tape clamping arm are located below the tape deflection guide roller, and can clamp the vertically untied tape from both sides.

[0014] Preferably, the arc-shaped opening of the moving wheel is the same size as the front end opening of the module base, and the two openings overlap in the initial state; the moving wheel is connected to the moving wheel driving motor through a moving wheel driving synchronous belt, and the moving wheel driving motor can make the moving wheel rotate at the front of the module base, driving the tape roll to move in a circular arc.

[0015] Preferably, the tape swing guide roller is fixed to the tape swing bracket seat through a tape swing bracket with a flexible deflection, so that the tape swing guide roller can swing and rotate to adapt to the conveying direction of the untied tape; the tape swing bracket seat is fixed to the upper part of the driving wheel.

[0016] Preferably, the driving side tape clamping arm is fixed to one end of the tape clamping return spring, and the other end of the tape clamping return spring is fixed to a moving wheel located outside the driving side tape clamping arm, so that the tape clamping return spring is stretched when the driving side tape clamping arm performs a clamping movement, and the driven side tape clamping arm and the driving side tape clamping arm can be separated and restored to their original positions under the action of elastic force.

[0017] Preferably, the clamping jaw swing arm assembly comprises a tape clamping jaw assembly, a tape clamping jaw cylinder, a clamping jaw swing arm, a clamping jaw swing arm base, a clamping jaw swing arm cylinder and a clamping jaw swing arm guide rail;

[0018] The clamping jaw swing arm guide rail is vertically fixed on the module base, the clamping jaw swing arm base is slidably connected to the clamping jaw swing arm guide rail through a slider, the clamping jaw swing arm base is hinged to the clamping jaw swing arm and one end of the clamping jaw swing arm cylinder respectively, and the other end of the clamping jaw swing arm is installed with a tape clamping jaw assembly; the tape clamping jaw assembly is located below the tape deflection guide roller, and can clamp or release the tape head under the drive of the tape clamping jaw cylinder; the tape clamping jaw cylinder is installed on the clamping jaw swing arm; the output end of the clamping jaw swing arm cylinder is located in the middle of the clamping jaw swing arm, and is used to drive the clamping jaw swing arm to swing up and down with the hinge point as the fulcrum.

[0019] Preferably, a jaw swing arm driving motor is fixed on the module base, a jaw swing arm driving gear is installed on the output end of the jaw swing arm driving motor, a jaw swing arm driving rack is vertically provided on the jaw swing arm base, the jaw swing arm driving gear is meshingly connected with the jaw swing arm driving rack, and the jaw swing arm driving motor can drive the jaw swing arm base to slide up and down along the jaw swing arm guide rail.

[0020] Preferably, the tape clamp assembly includes a driven side tape clamp and a driving side tape clamp; both the driven side tape clamp and the driving side tape clamp have a toothed structure, which are meshed with each other; the lower end of the driving side tape clamp is connected to the output shaft of the tape clamp cylinder, and the tape clamp cylinder can enable the driven side tape clamp and the driving side tape clamp to be clamped or released under meshing transmission.

[0021] Preferably, the automatic tape cutting mechanism comprises a tape cutter seat, a tape cutter guide rail and a tape cutter;

[0022] The tape cutter guide rail is axially arranged parallel to the module base, the tape cutter seat is slidably connected to the tape cutter guide rail via a slider, and a tape cutter is fixed on the tape cutter seat; when the tape cutter seat drives the tape cutter to move to the tape cutting position, the tape cutter can cut the tape between the tape head clamping assembly and the tape clamping claw assembly.

[0023] In a second aspect, the present invention provides an operation method of the fully automatic tape winding head module according to the first aspect, which is as follows:

[0024] S1: Initial preparation stage,

[0025] The opening of the driving wheel is aligned with the opening of the module base, which is convenient for the wire harness to enter and exit; the tape roll is coaxially sleeved on the tape roll fixing shaft, and the unwound tape on the tape roll passes through the tape guide roller and the tape deflection guide roller in sequence, so that the adhesive surface of the tape faces the opening side of the module base; the swing angle of the clamping arm is adjusted by the clamping arm cylinder, so that the unwound tape head is clamped and fixed in a suitable position by the tape clamping jaw; the tape cutter is in the avoidance position at the rear of the module base; the driven side tape clamping arm and the driving side tape clamping arm are in the initial open state;

[0026] S2: Tape pre-bonding stage,

[0027] The wire harness passes through the opening at the front end of the module base and moves to the rotation center of the moving wheel, where the outer surface of the wire harness contacts the sticky surface of the tape to form a preliminary pre-bonding. Subsequently, the moving wheel rotates in the winding direction at a maximum angle, and the rotation range of the angle is sufficient to not block the downward swing of the clamping claw swing arm. At this time, the pre-bonding covering angle between the outer surface of the wire harness and the sticky surface of the tape becomes larger, increasing the reliability of the tape pre-bonding.

[0028] S3: Tape wrapping and lagging stage,

[0029] The tape gripper assembly is loosened from the tape head by the tape gripper cylinder, and the gripper swing arm swings downward through the gripper swing arm cylinder, driving the tape gripper assembly to withdraw from the tape winding rotation range; the driving wheel is rotated towards the direction of the coated tape by the driving wheel drive motor; at the same time, the head module moves axially relative to the wire harness to form a spiral coating effect of the tape; during this process, the tape deflection guide roller can deflect and rotate, adapt to the tape conveying direction, and always guide the unwound tape;

[0030] S4: Tape end cutting stage,

[0031] After the posture of the tape roll returns to the initial state, the driving side tape clamping arm is driven by the tape clamping drive cylinder to slide along the clamping arm guide rail, so that the driven side tape clamping arm and the driving side tape clamping arm approach each other and clamp the tape above the position to be cut; subsequently, the tape cutter seat drives the tape cutter to move along the tape cutter guide rail to the tape cutting position, cuts the tape and then retracts;

[0032] S5: Tape preparation stage,

[0033] When the wire harness wrapped with tape exits the head module from the front opening of the module base, the tape gripper assembly remains open, and the gripper swing arm swings upward to the horizontal position through the action of the gripper swing arm cylinder; at the same time, the gripper swing arm drive motor drives the gripper swing arm drive gear to rotate, driving the gripper swing arm base to move upward until the tape clamping position, so that the tape break enters the opening position of the tape gripper assembly; the tape gripper assembly is closed through the action of the tape gripper cylinder to clamp the tape head; subsequently, the tape clamping drive cylinder is reset, and the driven side tape clamping arm and the driving side tape clamping arm are separated by the tape clamping return spring; then, the gripper swing arm drive motor acts again, driving the gripper swing arm base to move downward, so that the tape gripper assembly clamps the tape head and runs downward to the initial preparation stage position of S1;

[0034] Repeat S1 - S5 to achieve full-automatic tape winding of each wire harness.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. It can automatically complete tape preparation, reliable pre-sticking, continuous winding, and automatic cutting and ending, without manual intervention throughout the process.

[0037] 2. The structure design is compact, and it can be wound to a position closer to the root of the wire harness. At the same time, with modular design, it can be transplanted and applied in multiple links. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of the device of the present invention;

[0039] Figure 2 is Figure 1 a schematic structural view from another angle;

[0040] Figure 3 is a schematic structural view of the rotating driving wheel assembly;

[0041] Figure 4 is Figure 3 a schematic structural view from another angle;

[0042] Figure 5 is the initial state of each link such as the tape roll and the tape when the head module is in the initial preparation state;

[0043] Figure 6 is a state description when the wire harness enters the winding position and the surface of the wire harness is initially pre - adhered to the tape, and it is also a relatively unreliable pre - adhesion method adopted in the conventional technology;

[0044] Figure 7 is the state when the present invention further increases the pre - adhesion wrapping angle of the tape to further ensure reliable pre - adhesion;

[0045] Figure 8 is a state description when the pre - adhesion of the tape ends and the continuous winding of the tape is started;

[0046] Figure 9 is a state description of each part when the head module is continuously winding the tape;

[0047] Figure 10 is a state description when the tape enters the cutting and finishing stage after the continuous winding of the tape ends;

[0048] Figure 11 is a state description when the tape swing arm assembly moves upward to prepare to grab the tape;

[0049] Figure 12 is a state description when the tape gripper assembly is ready to move downward to return the tape state to the initial state after grabbing the tape;

[0050] The reference numerals in the figure are: module base 1, rotating driving wheel assembly 2, driving wheel 201, film fixing shaft 202, film fixing bracket 203, tape guide roller 204, tape yaw guide roller 205, tape yaw bracket 206, tape yaw bracket seat 207, counterweight 208, tape clamping return spring 209, tape head clamping mechanism 210, driven side tape clamping arm 211, clamping arm synchronous gear 212, clamping arm guide rail 213, driving side tape clamping arm 214, tape roll 3, unwound tape 4, adhesive surface of the tape 4a, wound tape 5, wire harness 6, tape jaw assembly 7, driven side tape jaw 7a, driving side tape jaw 7b, tape jaw cylinder 8, jaw swing arm 9, jaw swing arm base 10, jaw swing arm driving rack 11, jaw swing arm driving gear 12, jaw swing arm cylinder 13, jaw swing arm guide rail 14, tape cutter seat 15, tape cutter guide rail 16, tape cutter 17, driving wheel driving motor 18, driving wheel driving synchronous belt 19, jaw swing arm driving motor 20, tape clamping driving cylinder 21. Detailed implementation manners

[0051] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following describes the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The technical features in various embodiments of the present invention can be combined correspondingly without conflict.

[0052] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, that is, there is an intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element.

[0053] In the present invention, for the convenience of description, the positional relationship of each component is described in terms of the Figure 1 orientation of the device shown, where "front" and "rear" respectively refer to the Figure 1 right side and left side in Figure 1 , and "upper" and "lower" respectively refer to the Figure 1 upper side and lower side in Figure 2 . Unless otherwise specified, the positional relationship of the present invention is described according to this.

[0054] As shown in Figure 1 and 2As shown in the figure, a full-automatic tape winding head module provided by the present invention mainly includes a rotating wheel assembly 2, a jaw swing arm assembly, and an automatic tape cutting mechanism, which are installed on a module base 1. Each mechanism cooperates with each other to achieve the function of automatically winding tape around a wire harness. The cooperation process will be described below.

[0055] In the device of the present invention, as Figure 1 shown, a rotating wheel assembly 2 is rotatably connected to the front part (i.e., the right side) of the module base 1, and an opening is provided at the front end (i.e., the rightmost side). This opening serves as a passage through which the wire harness 6 can enter the inside of the rotating wheel assembly 2. In actual use, the rotating wheel assembly 2 can wind the tape around the outer periphery of the wire harness 6 by rotation, and the tape head clamping mechanism 210 can clamp the tape near the position to be cut.

[0056] In the device of the present invention, as Figure 1 shown, the jaw swing arm assembly is located below the rotating wheel assembly 2 and can move up and down and rotate around an axis. The tape jaw assembly 7 can clamp the tape head.

[0057] In the device of the present invention, as Figure 1 shown, the automatic tape cutting mechanism is located at the rear of the rotating wheel assembly 2. The tape cutter 17 can move between a tape cutting position and a retracted position, and at the tape cutting position, the tape cutter 17 can cut the tape at the break.

[0058] In theory, the structural forms of the above-mentioned module base 1, rotating wheel assembly 2, jaw swing arm assembly, and automatic tape cutting mechanism are not limited, as long as they can achieve the functions described above.

[0059] Next, in conjunction with the accompanying drawings, the preferred implementation forms of each mechanism will be described in detail through embodiments.

[0060] The specific form of the above-mentioned module base 1 of the present invention can be adjusted according to actual needs. The module base 1 serves as the base of the entire mechanism, and its main function is to provide installation positions for each functional mechanism. Considering aesthetics and convenience, the module base 1 can be integrally set as a plate-like structure similar to a square, with the front part gradually shrinking inward and an opening provided along the vertical direction at the frontmost end. The opening structure serves as the access channel for the wire harness. The front part of the module base 1 communicating with the opening also has a circular hollow, and the rotating wheel assembly 2 is installed at this circular hollow, enabling the rotating wheel assembly 2 to rotate in the space of this circular hollow. The main structures of the jaw swing arm assembly and the automatic tape cutting mechanism are both installed on one side of the front surface of the module base 1.

[0061] In a preferred embodiment of the present invention, as Figure 3As shown, the rotating wheel assembly 2 is arranged at the front position of the module base 1, and is also an open structure, which can rotate. The rotating wheel assembly 2 mainly includes a wheel 201, a film fixing shaft 202, a tape guide roller 204, a tape deflection guide roller 205, a counterweight block 208 and a tape head clamping mechanism 210.

[0062] Specifically, the moving wheel 201 is an arc-shaped structure, and transmission teeth are arranged on the outer periphery. Figure 1 As shown, the arc-shaped opening of the moving wheel 201 is the same size as the front opening of the module base 1, and the two openings overlap in the initial state. Figure 2 As shown, the driving wheel 201 is connected to the driving wheel driving motor 18 through the driving wheel driving synchronous belt 19 to form a belt drive; the driving wheel driving motor 18 can make the driving wheel 201 rotate in front of the module base 1, thereby driving the tape roll 3 to move in a circular arc on the front side of the module base 1.

[0063] like Figure 3 As shown, the film fixing shaft 202 is fixed to the upper part of the moving wheel 201 through the film fixing bracket 203. The film fixing shaft 202 can fix the tape roll 3 coaxially, and can make the tape roll 3 rotate along the central axis together with the film fixing shaft 202. The tape guide roller 204 and the tape deflection guide roller 205 are both fixed to the upper part of the moving wheel 201, and the tape guide roller 204 and the tape deflection guide roller 205 are both located below the film fixing shaft 202. Figure 1 and 5 As shown, the unwound tape 4 on the tape roll 3 can be guided by the tape guide roller 204 and the tape deflection guide roller 205 in sequence to be in a vertical downward state, and the adhesive surface 4a of the tape faces the opening of the module base 1. The counterweight block 208 is located at the lower part of the moving wheel 201, which can balance the gravity of the various mechanisms on the upper part of the moving wheel 201, so as to facilitate the rotation of the moving wheel 201 and return to the initial state.

[0064] like Figure 3 As shown, the tape sway guide roller 205 is fixed to the tape sway bracket seat 207 through the tape sway bracket 206, and the tape sway bracket seat 207 is fixed to the upper part of the moving wheel 201. The tape sway bracket 206 has a flexible deflection, and in actual use, the tape sway guide roller 205 can sway and rotate to adapt to the conveying direction of the unwound tape 4, so that the tape sway guide roller 205 always has a guiding effect on the tape.

[0065] In addition to the conventional film fixing shaft 202, film fixing bracket 203, tape guide roller 204, tape yaw guide roller 205, tape yaw bracket 206, tape yaw bracket seat 207, counterweight 208 and other conventional functional components arranged on the rotating driving wheel assembly 2 of the present invention, a tape head clamping mechanism 210 is further included. The function of the tape head clamping mechanism 210 is that when a tape winding process ends and before the tape is disconnected, the tape near the break needs to temporarily maintain its posture to prevent the tape head from retracting and drifting after the tape is disconnected, so that the subsequent tape clamping mechanism can further reliably clamp the tape head and prepare the tape for the next process. The tape head clamping mechanism of the existing conventional technology is externally disposed on the rotating driving wheel assembly. When preparing to cut the tape, the external mechanism first moves to the tape holding position to temporarily clamp the tape. Due to the interference problem between the external clamping mechanism and the rotating range of the rotating driving wheel assembly, during the winding process, the external clamping mechanism needs to withdraw from the rotating range in advance, and the space occupied by the advancing and retreating paths of the mechanism greatly affects the minimum distance between the starting and ending positions of the tape winding and the connector or branch fulcrum. The present invention innovatively integrates the tape head clamping mechanism 210 onto the rotating driving wheel assembly 2, and this structure solves the above problems.

[0066] Specifically, as Figure 4 shown, the tape head clamping mechanism 210 mainly includes a driven-side tape clamping arm 211, a clamping arm synchronous gear 212, a clamping arm guide rail 213 and a driving-side tape clamping arm 214. Specifically, the clamping arm guide rail 213 is fixed to the upper part of the driving wheel 201, and the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 are respectively slidably connected to the clamping arm guide rail 213 through sliders. Tooth-shaped structures are provided on the inner sides of the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214, and the two are respectively engaged with the clamping arm synchronous gear 212 to form a linkage structure. That is to say, as long as an external mechanism (such as Figure 2 the tape clamping mechanism driving cylinder 21 shown) drives one side of the clamping arm, the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 can be simultaneously driven to perform an opposite clamping movement. Since the tape head clamping mechanism 210 moves together with the rotating driving wheel assembly 2, the external driving mechanism can only provide power in the clamping direction.

[0067] During actual use, the output end of the tape clamping driving cylinder 21 fixed to the module base 1 drives the driving-side tape clamping arm 214 to slide along the clamping arm guide rail 213, causing the clamping arm synchronous gear 212 to mesh and rotate, driving the driven-side tape clamping arm 211 to slide along the clamping arm guide rail 213, and making the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 approach each other to perform an opposite clamping movement. As Figure 2As shown, the tape clamping drive cylinder 21 can be fixed to the back of the module base 1. The driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 are located below the tape yaw guide roller 205 and can clamp the vertical unwound tape 4 from both sides. In actual use, the clamping arm synchronizing gear 212 can be rotatably fixed to the driving wheel 201.

[0068] To meet the return function of the tape clamping mechanism 210 in the normal state, a tape clamping return spring 209 is also provided. Specifically, one end of the driving-side tape clamping arm 214 is fixed to the tape clamping return spring 209, and the other end of the tape clamping return spring 209 is fixed to the driving wheel 201 located outside the driving-side tape clamping arm 214 (here, the outside refers to the side away from the driven-side tape clamping arm 211), so that the driving-side tape clamping arm 214 stretches the tape clamping return spring 209 when performing the clamping movement. When it is necessary to reset the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 to the loosened state, under the action of the elastic force, the driving-side tape clamping arm 214 is driven to move outwards. During the movement of the driving-side tape clamping arm 214, the clamping arm synchronizing gear 212 is driven to rotate, so that the driven-side tape clamping arm 211 moves outwards synchronously, and further, the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 are separated and restored to the original position (i.e., the loosened state).

[0069] In a preferred embodiment of the present invention, as Figure 1 shown, the jaw swing arm assembly is arranged directly below the rotation range of the tape roll and mainly includes a tape jaw assembly 7, a tape jaw cylinder 8, a jaw swing arm 9, a jaw swing arm base 10, a jaw swing arm cylinder 13, and a jaw swing arm guide rail 14. The functions of arranging the jaw swing arm assembly are twofold: 1. It can be used as a mechanism for maintaining the posture of the tape head in the initial state and during the tape pre-sticking stage; 2. It is used as a tape clamping mechanism during the tape preparation stage.

[0070] Specifically, the jaw swing arm guide rail 14 is vertically fixed to the rear of the module base 1 and is located on the front of the module base 1. The jaw swing arm base 10 is slidably connected to the jaw swing arm guide rail 14 through a slider. As Figure 2 shown, a jaw swing arm drive motor 20 is fixed to the back of the module base 1. As Figure 1 shown, a jaw swing arm drive gear 12 is installed at the output end of the jaw swing arm drive motor 20. A jaw swing arm drive rack 11 is vertically provided on the jaw swing arm base 10. The jaw swing arm drive gear 12 is meshed with the jaw swing arm drive rack 11. In actual use, the jaw swing arm base 10 can be driven to slide up and down along the jaw swing arm guide rail 14 by the jaw swing arm drive motor 20.

[0071] The gripper swing arm base 10 is equipped with a gripper swing arm 9 and a gripper swing arm cylinder 13. One end of the gripper swing arm 9 is rotatably connected to the gripper swing arm base 10, and the other end is equipped with a tape gripper assembly 7. The tape gripper assembly 7 is located below the tape yaw guide roller 205 and can clamp or release the tape head under the drive of the tape gripper cylinder 8.

[0072] In this embodiment, the tape gripper assembly 7 mainly includes a driven-side tape gripper 7a and a driving-side tape gripper 7b. Both the driven-side tape gripper 7a and the driving-side tape gripper 7b have a toothed structure and are meshed and connected to each other. The lower end of the driving-side tape gripper 7b is rotatably connected to the output shaft of the tape gripper cylinder 8, and the lower end of the driven-side tape gripper 7a is rotatably connected to the end of the gripper swing arm 9. Through the tape gripper cylinder 8, the driven-side tape gripper 7a and the driving-side tape gripper 7b can be clamped or released under meshing transmission. In addition, the tape gripper cylinder 8 can be installed on the gripper swing arm 9 and can rotate synchronously with the gripper swing arm 9 around the axis.

[0073] One end of the gripper swing arm cylinder 13 is rotatably connected to the gripper swing arm base 10, and the other end (i.e., the output end) is connected to the middle of the gripper swing arm 9. During actual use, it can drive the gripper swing arm 9 to swing up and down with the hinge point (i.e., the connection end of the gripper swing arm 9 and the gripper swing arm base 10) as the fulcrum, so that the tape gripper assembly 7 can avoid the rotation range of the rotating wheel assembly 2 during the tape winding stage, and can swing up to the required position during the tape holding stage, tape clamping stage, etc. During the operation process, combined with the up and down swing of the gripper swing arm 9, the tape gripper assembly 7 can finally realize the switching among three positions: the tape head clamping position, the tape initial state holding position, and avoiding during the tape winding stage.

[0074] In a preferred embodiment of the present invention, as Figure 1 shown, the tape automatic cutting mechanism mainly includes a tape cutter seat 15, a tape cutter guide rail 16, and a tape cutter 17.

[0075] Specifically, the tape cutter guide rail 16 is axially (i.e., Figure 1It is arranged in parallel with the left - right horizontal direction (in the figure), and is located at the rear of the rotating driving wheel assembly 2. The upper end of the tape cutter seat 15 is slidably connected to the tape cutter guide rail 16 through a slider, and the tape cutter seat 15 can slide horizontally left - and - right along the tape cutter guide rail 16 under the drive of the driving device. A tape cutter 17 is fixed to the bottom of the tape cutter seat 15, and the cutting edge of the tape cutter 17 faces forward. Driven by the driving mechanism, the tape cutter 17 can move between the cutting position and the avoidance position. When the tape cutter seat 15 drives the tape cutter 17 to move rightward to the tape cutting position (generally referring to when the tape cutter seat 15 moves to the right extreme position of the tape cutter guide rail 16), the tape cutter 17 can cut the tape located between the tape head clamping assembly 210 and the tape clamping jaw assembly 7. In this embodiment, the tape cutter 17 has a sharp - edge structure, and in cooperation with the clamping action of the tape head clamping mechanism 210, the tape can be cut quickly, flatly and reliably.

[0076] Using the above - mentioned fully automatic tape winding head module, the present invention also provides an operation method, which is specifically as follows:

[0077] S1: Initial preparation stage, as Figure 5 shown, specifically as follows:

[0078] The opening of the driving wheel 201 is aligned with the opening of the module base 1 to facilitate the entry and exit of the wire harness 6. The tape roll 3 is coaxially sleeved on the film fixing shaft 202. The tape 4 unwound from the tape roll 3 sequentially passes through the tape guide roller 204 and the tape yaw guide roller 205, so that the adhesive surface 4a of the tape faces the opening side of the module base 1. The swing angle of the jaw swing arm 9 is adjusted by the jaw swing arm cylinder 13, so that the unwound tape head is clamped and fixed in place by the tape clamping jaw 7. The tape cutter 17 is in the avoidance position at the rear of the module base 1. The driven - side tape clamping arm 211 and the driving - side tape clamping arm 214 are in the initial open state.

[0079] S2: Tape pre - adhesion stage, as Figure 6 and Figure 7 shown, specifically as follows:

[0080] As Figure 6 shown, first, the wire harness 6 passes through the opening at the front end of the module base 1 and moves to the circumference of the rotation center of the driving wheel 201. At this time, the outer surface of the wire harness 6 contacts the adhesive surface 4a of the tape to form a preliminary pre - adhesion, but it is not a reliable pre - adhesion. Subsequently, as Figure 7 shown, the driving wheel 201 rotates in the winding direction by an angle as large as possible, and the rotation range of the angle satisfies that it will not block the downward swing of the jaw swing arm 9. At this time, the pre - adhesion wrapping angle between the outer surface of the wire harness 6 and the adhesive surface 4a of the tape becomes larger, increasing the reliability of the tape pre - adhesion.

[0081] S3: Tape winding and encapsulation stage, as Figure 8 andFigure 9 As shown below:

[0082] First, the tape gripper cylinder 8 is used to release the tape head by the tape gripper assembly 7. The gripper swing arm cylinder 13 is used to swing the gripper swing arm 9 downward, driving the tape gripper assembly 7 to withdraw from the tape winding rotation range. The driving wheel driving motor 18 drives the driving wheel 201 to rotate towards the direction of the covering tape. At the same time, the head module moves axially relative to the wire harness 6 to form a tape spiral covering effect, and finally the wound tape 5 is obtained.

[0083] During this process, the tape deflection guide roller 205 can deflect and rotate to adapt to the tape conveying direction and always guide the unwound tape 4.

[0084] S4: Tape finishing and cutting stage, as Figure 10 shown below:

[0085] After the continuous winding stage ends and the posture of the tape roll 3 returns to the initial state, the tape clamping drive cylinder 21 drives the driving side tape clamping arm 214 to slide along the clamping arm guide rail 213 from the outside, so that the driven side tape clamping arm 211 and the driving side tape clamping arm 214 approach each other and clamp the tape above the position to be cut. Subsequently, the tape cutter seat 15 drives the tape cutter 17 to move along the tape cutter guide rail 16 to the tape cutting position, cuts the tape and then retracts.

[0086] S5: Tape preparation stage, as Figure 11 and 12 shown below:

[0087] When the wire harness 6 with the tape wound is withdrawn from the front opening of the head module of the module base 1, it enters the tape preparation stage. At this time, the tape gripper assembly 7 remains open, and the gripper swing arm cylinder 13 is actuated to swing the gripper swing arm 9 upward to the horizontal position. At the same time, the gripper swing arm driving motor 20 drives the gripper swing arm driving gear 12 to rotate, driving the gripper swing arm base 10 to move upward until the tape clamping position (as Figure 11 state), so that the tape break enters the opening position of the tape gripper assembly 7. As shown in Figure 12 the state shown, the tape gripper cylinder 8 is actuated to close the tape gripper assembly 7 and clamp the tape head. Subsequently, the tape clamping drive cylinder 21 is reset, and the driven side tape clamping arm 211 and the driving side tape clamping arm 214 are separated by the tape clamping return spring 209. Then, the gripper swing arm driving motor 20 acts again, driving the gripper swing arm base 10 to move downward, so that the tape gripper assembly 7 clamps the tape head and runs downward to the initial preparation stage position of S1, and the tape preparation stage is completed.

[0088] In actual use, S1 to S5 can be repeated multiple times as needed, so as to realize the full-automatic tape winding of each target wire harness 6.

[0089] The design principle of the device of the present invention will be briefly described below:

[0090] In the prior art, the tape roll is installed on a rotating moving wheel provided with an opening through a tape bracket. The opening of the moving wheel allows the wire harness to enter the center position of the rotation of the moving wheel. At the same time, the unwound part of the tape passes through a set of guide rollers to reach the center winding position of the rotating moving wheel. When the tape head has been reliably pre-stuck to the surface of the wire harness, the motor drives the rotating moving wheel to rotate around the wire harness for winding movement, and at the same time, the head module moves relatively along the axial direction of the wire harness to wind the tape evenly and controllably onto the surface of the wire harness. When the tape is wound to the tail, an institution or manual operation is required to cut the tape.

[0091] However, in the above basic tape winding process and structure, it is impossible to arrange corresponding institutions in the space within the rotation range of the tape roll and the moving wheel to achieve the corresponding functions. The existing full-automatic winding technical solutions only simply arrange corresponding institutions outside the above rotation space to achieve actions such as pre-sticking and cutting. Then how to design and arrange the institutions with corresponding functions more reasonably, more compactly and ingeniously has become the key factor in the design.

[0092] The core of the design solution of the present invention lies in:

[0093] 1. Since the moving wheel is an open dynamic rotating body, conventional power mechanisms cannot be arranged on it. The present invention ingeniously arranges a set of tape head clamping mechanisms on the rotating moving wheel assembly. When the moving wheel is in a specific position, the action of the tape head clamping mechanism is promoted by borrowing an external mechanism, and this specific position exactly coincides with the position where the tape head clamping mechanism needs to act. This avoids the extra space brought by the need to avoid the tape roll and the rotation space of the moving wheel when arranging the external tape head clamping mechanism, and reduces the structural size of the head module.

[0094] 2. Before the tape is pre-stuck and wound, an institution is arranged to maintain the posture of the tape to avoid the unstable posture of the tape head, thereby improving the reliability of each tape pre-sticking, and the maintaining institution can automatically avoid during the tape winding stage.

[0095] 3. A tape automatic cutting mechanism is arranged. After the tape winding is completed, in cooperation with the above tape head clamping mechanism, it can complete the automatic cutting function of the tape and maintain the posture of the tape head after cutting, so that the tape clamping mechanism can further reliably clamp the tape and switch the tape state to the initial preparation state of the next winding process.

[0096] 4. The above tape maintaining mechanism in the initial stage also serves as the tape clamping mechanism in the tape preparation stage. Such a set of mechanisms can complete different working contents in two stages, saving half of the corresponding mechanism arrangements.

[0097] 5. The above-mentioned tape automatic cutting mechanism, tape holding mechanism / tape clamping mechanism are all arranged outside the rotation space range of the driving wheel assembly. However, they are not arranged in the axial direction of rotation, but outside the radial direction of the rotation range. The advantage of this is that it can reduce the thickness dimension of the head module, which is beneficial for the winding tape to be closer to the wire harness connector or branch node position.

[0098] The embodiments described above are only a preferred solution of the present invention, but they are not intended to limit the present invention. Those of ordinary skill in the relevant technical field can still make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all technical solutions obtained by adopting the means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A fully automatic tape winding head module, characterized in that: It comprises a rotating wheel assembly (2) installed on a module base (1), a clamping claw swing arm assembly and an automatic tape cutting mechanism; The front part of the module base (1) is rotatably connected to a rotating wheel assembly (2), and the front end is provided with an opening for the wire harness (6) to enter the interior of the rotating wheel assembly (2); the rotating wheel assembly (2) can wrap the adhesive tape around the outer periphery of the wire harness (6) by rotating, and the adhesive tape head clamping mechanism (210) can clamp the adhesive tape near the position to be cut; The clamping jaw swing arm assembly is located below the rotating wheel assembly (2) and can move up and down and rotate around the axis. The tape clamping jaw assembly (7) can clamp the tape head. The automatic tape cutting mechanism is located at the rear of the rotating wheel assembly (2); the tape cutter (17) can move between a tape cutting position and an avoidance position, and can cut the tape at the break at the tape cutting position.

2. The fully automatic tape winding head module according to claim 1, characterized in that: The rotating wheel assembly (2) comprises a moving wheel (201), a film fixing shaft (202), a tape guide roller (204), a tape deflection guide roller (205), a counterweight (208) and a tape head clamping mechanism (210); The moving wheel (201) is an arc-shaped structure, and a transmission tooth is arranged on the outer periphery; the film fixing shaft (202) is fixed to the upper part of the moving wheel (201) through a film fixing bracket (203), and is used to coaxially fix the tape roll (3) and enable the tape roll (3) to rotate along the central axis together; the tape guide roller (204) and the tape deflection guide roller (205) are both fixed to the upper part of the moving wheel (201), and the tape (4) unwound from the tape roll (3) can be guided by the tape guide roller (204) and the tape deflection guide roller (205) in sequence to be in a vertical downward state, with the adhesive surface (4a) of the tape facing the opening of the module base (1); the counterweight (208) is located at the lower part of the moving wheel (201), and is used to balance the gravity of the upper part of the moving wheel (201); The tape head clamping mechanism (210) comprises a driven side tape clamping arm (211), a clamping arm synchronous gear (212), a clamping arm guide rail (213) and a driving side tape clamping arm (214); the clamping arm guide rail (213) is fixed to the upper part of the driving wheel (201); the driven side tape clamping arm (211) and the driving side tape clamping arm (214) are respectively slidably connected to the clamping arm guide rail (213) via a slider; the inner sides of the driven side tape clamping arm (211) and the driving side tape clamping arm (214) are both provided with a toothed structure, and the two are respectively meshed with the clamping arm synchronous gear (212) to couple into a linkage structure. ; The output end of the tape clamping driving cylinder (21) fixed on the module base (1) drives the driving side tape clamping arm (214) to slide along the clamping arm guide rail (213), so that the clamping arm synchronous gear (212) engages and rotates, driving the driven side tape clamping arm (211) to slide along the clamping arm guide rail (213), so that the driven side tape clamping arm (211) and the driving side tape clamping arm (214) approach each other and perform clamping movement towards each other; the driven side tape clamping arm (211) and the driving side tape clamping arm (214) are located below the tape deflection guide roller (205), and can clamp the vertically untied tape (4) from both sides.

3. The fully automatic tape winding head module according to claim 2, characterized in that: The arc-shaped opening of the moving wheel (201) is the same size as the front opening of the module base (1), and the two openings overlap in an initial state; the moving wheel (201) is connected to the moving wheel driving motor (18) through a moving wheel driving synchronous belt (19), and the moving wheel driving motor (18) can make the moving wheel (201) rotate at the front of the module base (1), thereby driving the tape roll (3) to move in a circular arc.

4. The fully automatic tape winding head module according to claim 2, characterized in that: The tape deflection guide roller (205) is fixed to the tape deflection bracket seat (207) via a tape deflection bracket (206) having a flexible deflection, so that the tape deflection guide roller (205) can deflect and rotate to adapt to the conveying direction of the unwound tape (4); the tape deflection bracket seat (207) is fixed to the upper part of the moving wheel (201).

5. The fully automatic tape winding head module according to claim 2, characterized in that: The driving side tape clamping arm (214) is fixed to one end of the tape clamping return spring (209), and the other end of the tape clamping return spring (209) is fixed to the driving wheel (201) located outside the driving side tape clamping arm (214), so that when the driving side tape clamping arm (214) performs a clamping movement, the tape clamping return spring (209) is stretched, and the driven side tape clamping arm (211) and the driving side tape clamping arm (214) can be separated and restored to their original positions under the action of elastic force.

6. The fully automatic tape winding head module according to claim 2, characterized in that: The clamping jaw swing arm assembly comprises a tape clamping jaw assembly (7), a tape clamping jaw cylinder (8), a clamping jaw swing arm (9), a clamping jaw swing arm base (10), a clamping jaw swing arm cylinder (13) and a clamping jaw swing arm guide rail (14); The clamping jaw swing arm guide rail (14) is vertically fixed on the module base (1), the clamping jaw swing arm base (10) is slidably connected to the clamping jaw swing arm guide rail (14) through a slider, the clamping jaw swing arm base (10) is hinged to one end of the clamping jaw swing arm (9) and the clamping jaw swing arm cylinder (13) respectively, and the other end of the clamping jaw swing arm (9) is installed with a tape clamping jaw assembly (7); the tape clamping jaw assembly (7) is located below the tape deflection guide roller (205), and can clamp or release the tape head under the drive of the tape clamping jaw cylinder (8); the tape clamping jaw cylinder (8) is installed on the clamping jaw swing arm (9); the output end of the clamping jaw swing arm cylinder (13) is located in the middle of the clamping jaw swing arm (9), and is used to drive the clamping jaw swing arm (9) to swing up and down with the hinge point as the fulcrum.

7. The fully automatic tape winding head module according to claim 6, characterized in that: A clamping arm driving motor (20) is fixed on the module base (1), a clamping arm driving gear (12) is installed on the output end of the clamping arm driving motor (20), a clamping arm driving rack (11) is vertically arranged on the clamping arm base (10), the clamping arm driving gear (12) is meshedly connected with the clamping arm driving rack (11), and the clamping arm driving motor (20) can drive the clamping arm base (10) to slide up and down along the clamping arm guide rail (14).

8. The fully automatic tape winding head module according to claim 6, characterized in that: The tape clamp assembly (7) comprises a driven side tape clamp (7a) and a driving side tape clamp (7b); both the driven side tape clamp (7a) and the driving side tape clamp (7b) have tooth structures, and the two are meshed; the lower end of the driving side tape clamp (7b) is connected to the output shaft of the tape clamp cylinder (8), and the driven side tape clamp (7a) and the driving side tape clamp (7b) can be clamped or released under meshing transmission through the tape clamp cylinder (8).

9. The fully automatic tape winding head module according to claim 6, characterized in that: The automatic tape cutting mechanism comprises a tape cutter seat (15), a tape cutter guide rail (16) and a tape cutter (17); The tape cutter guide rail (16) is axially arranged parallel to the module base (1); the tape cutter seat (15) is slidably connected to the tape cutter guide rail (16) via a slider; a tape cutter (17) is fixed on the tape cutter seat (15); when the tape cutter seat (15) drives the tape cutter (17) to move to the tape cutting position, the tape cutter (17) can cut the tape between the tape head clamping assembly (210) and the tape clamping jaw assembly (7).

10. A method for operating the fully automatic tape winding head module according to claim 9, characterized in that: The details are as follows: S1: Initial preparation stage, The opening of the driving wheel (201) is aligned with the opening of the module base (1) to facilitate the entry and exit of the wire harness (6); the tape roll (3) is coaxially sleeved on the tape fixing shaft (202), and the unwound tape (4) on the tape roll (3) passes through the tape guide roller (204) and the tape deflection guide roller (205) in sequence, so that the adhesive surface (4a) of the tape faces the opening side of the module base (1); the swing angle of the clamping claw swing arm (9) is adjusted by the clamping claw swing arm cylinder (13), so that the unwound tape head is clamped and fixed in a suitable position by the tape clamping claw (7); the tape cutter (17) is in a evasive position at the rear of the module base (1); the driven side tape clamping arm (211) and the driving side tape clamping arm (214) are in an initial open state; S2: Tape pre-bonding stage, The wire harness (6) passes through the opening at the front end of the module base (1) and moves to the rotation center of the moving wheel (201), and the outer surface of the wire harness (6) contacts the adhesive surface (4a) of the tape to form a preliminary pre-bonding; then, the moving wheel (201) rotates in the winding direction by as large an angle as possible, and the rotation range of the angle is sufficient to not block the downward swing of the clamping claw swing arm (9); at this time, the pre-bonding coating angle between the outer surface of the wire harness (6) and the adhesive surface (4a) of the tape becomes larger, thereby increasing the reliability of the tape pre-bonding; S3: Tape wrapping and lagging stage, The tape clamping claw cylinder (8) is used to loosen the tape head of the tape clamping claw assembly (7), and the clamping claw swing arm cylinder (13) is used to swing the clamping claw swing arm (9) downward, thereby driving the tape clamping claw assembly (7) to exit the tape winding rotation range; the moving wheel driving motor (18) is used to drive the moving wheel (201) to rotate in the direction of wrapping the tape; at the same time, the head module moves relatively along the axial direction of the wire harness (6) to form a spiral wrapping effect of the tape; in this process, the tape deflection guide roller (205) can deflect and rotate, adapt to the tape conveying direction, and always guide the unwound tape (4); S4: Tape cutting stage. After the posture of the tape roll (3) returns to the initial state, the tape clamping drive cylinder (21) drives the driving side tape clamping arm (214) to slide along the clamping arm guide rail (213), so that the driven side tape clamping arm (211) and the driving side tape clamping arm (214) approach each other and clamp the tape at the upper part of the position to be cut; then, the tape cutter seat (15) drives the tape cutter (17) to move along the tape cutter guide rail (16) to the tape cutting position, cuts the tape and then retreats; S5: Tape preparation stage, When the wire harness (6) wrapped with the tape exits the head module from the front opening of the module base (1), the tape clamping jaw assembly (7) remains in an open state, and the clamping jaw swing arm cylinder (13) is actuated to cause the clamping jaw swing arm (9) to swing upward to a horizontal position; at the same time, the clamping jaw swing arm drive motor (20) drives the clamping jaw swing arm drive gear (12) to rotate, driving the clamping jaw swing arm base (10) to move upward to the tape clamping position, so that the tape break enters the opening position of the tape clamping jaw assembly (7); The tape clamping claw cylinder (8) is actuated to close the tape clamping claw assembly (7) and clamp the tape head; subsequently, the tape clamping driving cylinder (21) is reset, and the driven side tape clamping arm (211) and the driving side tape clamping arm (214) are separated by the tape clamping return spring (209); then, the clamping claw swing arm driving motor (20) is actuated again to drive the clamping claw swing arm base (10) to move downward, so that the tape clamping claw assembly (7) clamps the tape head and moves downward to the initial preparation stage position S1; Repeat S1 to S5 to achieve fully automatic tape winding of each wire harness (6).

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