Self-adhesive coil winding machine clamping mechanism

Abstract

This application relates to a clamping mechanism for a self-adhesive coil winding machine, belonging to the field of coil winding technology. The clamping mechanism includes a connecting frame for mounting on the winding machine, a clamping assembly disposed on the connecting frame, and an unlocking assembly for driving the clamping assembly to open. The clamping assembly includes a connecting shaft disposed on the connecting frame and two sets of clamping claws rotatably mounted on the connecting shaft. It also includes a connecting elastic member connecting the two sets of clamping claws. Each clamping claw has a clamping end, one set of which has a clamping protrusion at its clamping end, and the other set of clamping claws has a clamping groove corresponding to the clamping protrusion at its clamping end. The connecting elastic member drives the two sets of clamping ends to tend towards each other. This application improves the clamping stability of the clamping mechanism for the wire.

Description

Technical Field

[0001] This application relates to the field of coil winding technology, and in particular to a clamping mechanism for a self-adhesive coil winding machine. Background Technology

[0002] Coil winding machines are highly automated precision equipment whose core function is to precisely wind wires into stators or coil molds according to a specific number of turns, shape, and direction.

[0003] In existing technologies, winding machines require a clamping mechanism to fix the end of the wire during use, thereby driving the wire to wind back and forth on the coil mold. Current clamping mechanisms are typically pneumatic wire clamps, which include a gripper assembly and a drive module, through which the drive module controls the opening and closing of the gripper assembly.

[0004] In order to improve the clamping effect, the gripper assembly is usually provided with a friction surface to increase friction. However, the friction surface is worn after long-term use, which increases the probability of wire slippage. Utility Model Content

[0005] To improve the clamping stability of the clamping mechanism for the wire, this application provides a clamping mechanism for a self-adhesive coil winding machine.

[0006] The self-adhesive coil winding machine clamping mechanism provided in this application adopts the following technical solution:

[0007] A self-adhesive coil winding machine clamping mechanism includes a connecting frame for mounting on the winding machine, a clamping assembly disposed on the connecting frame, and an unlocking assembly for driving the clamping assembly to open. The clamping assembly includes a connecting shaft disposed on the connecting frame and two sets of clamping claws rotatably mounted on the connecting shaft. The mechanism is characterized by further including a connecting elastic member connecting the two sets of clamping claws. Each clamping claw has a clamping end, one set of clamping claws having a clamping protrusion at its clamping end, and the other set of clamping assemblies having a clamping groove corresponding to the clamping protrusion at its clamping end. The connecting elastic member drives the two sets of clamping ends to tend towards each other.

[0008] By adopting the above technical solution, the two sets of clamping claws are connected by a connecting elastic element. The connecting elastic element allows the two sets of clamping claws to approach each other under normal conditions. With the cooperation of the clamping groove and the clamping protrusion, the wire is three-dimensionally wrapped rather than relying solely on planar friction, thereby improving clamping stability.

[0009] Optionally, the clamping claw has an anti-detachment part at the end of the clamping protrusion, and the anti-detachment part and the clamping groove form a clamping gap to restrict the wire from falling out.

[0010] By adopting the above technical solution, the anti-detachment part can further reduce the probability of the wire coming out laterally from the clamping gap, and enhance the clamping stability of the wire.

[0011] Optionally, the connecting elastic element is a tension spring, and the clamping claw is provided with a connecting post for mounting the end of the connecting elastic element.

[0012] By adopting the above technical solution, the tension spring can keep the two sets of clamping claws stably close to each other to achieve stable clamping of the wire. The connecting column facilitates the installation and fixation of the end of the tension spring, ensuring that the tension spring can play a stable role, thereby improving the stability and reliability of the entire clamping mechanism.

[0013] Optionally, a limiting post is also installed on the connecting frame. The limiting post is located between the two sets of clamping claws and on the side of the connecting shaft away from the clamping end.

[0014] By adopting the above technical solution, a limiting post is installed between the two sets of clamping claws and on the side of the connecting shaft away from the clamping end. This can effectively limit the maximum closing angle of the two sets of clamping claws and prevent the clamping claw reset wire from being sheared.

[0015] Optionally, the corresponding sidewalls of the clamping posts are provided with arc-shaped abutment grooves that abut against the limiting posts.

[0016] By adopting the above technical solution, the contact area between the clamping claw and the limiting post is increased, making the contact between the clamping claw and the limiting post more stable, and further ensuring the clamping stability of the wire.

[0017] Optionally, the unlocking component includes an unlocking frame and a push post disposed on the unlocking frame, wherein the end of the clamping claw away from the clamping end is the unlocking end, and the unlocking end has a push slope for the push post to push.

[0018] By adopting the above technical solution, the clamping component can be easily driven to open by the cooperation of the pushing column on the unlocking frame and the pushing inclined surface of the clamping claw unlocking end, making the operation of the winding machine clamping mechanism simpler.

[0019] Optionally, a push sleeve is rotatably mounted on the push column.

[0020] By adopting the above technical solution, the friction loss when the push column contacts the clamping claw can be reduced, the service life of the mechanism can be improved, and the pushing process can be made smoother.

[0021] Optionally, the connecting shaft includes a rotating part that cooperates with the clamping part and a connecting part that is fixed to the connecting frame, wherein the connecting part and the connecting frame are threadedly engaged.

[0022] By adopting the above technical solution, the rotating part of the connecting shaft can enable the clamping part to rotate smoothly and engage, and the threaded engagement between the connecting part and the connecting frame body can facilitate the installation and disassembly of the connecting shaft, making it convenient for the assembly and maintenance of the clamping mechanism.

[0023] Optionally, the connecting frame has an installation through hole for inserting the limiting post, and the connecting frame has a locking socket that communicates with the installation through hole, and a locking pin is provided in the locking socket.

[0024] By adopting the above technical solution, the winding machine clamping mechanism can use the mounting through hole and locking pin to firmly install the limit post on the connecting frame, ensuring that the limit post functions normally and improving the stability and reliability of the winding machine clamping mechanism.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By connecting the elastic element, the two sets of clamping claws tend to move closer to each other. Combined with the corresponding clamping protrusions and clamping grooves, the wire can be effectively fixed, avoiding the problem of wire slippage caused by friction surface wear, similar to the prior art.

[0027] 2. The anti-detachment part and the clamping groove form a clamping gap to restrict the wire from coming out, further preventing the wire from coming out and ensuring the smooth progress of the winding process;

[0028] 3. The limiting post is located between the two sets of clamping claws, which can limit the reset and closing movement of the clamping claws, reducing the probability of wire breakage. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 2 This is an exploded view of the connecting frame and clamping assembly according to an embodiment of this application.

[0031] Figure 3 This is an exploded view of the clamping end and clamping claw in an embodiment of this application.

[0032] Figure 4 This is a schematic diagram of the structure of the limiting post according to an embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the structure of the unlocking component in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Connecting frame; 11. Connecting socket; 12. Mounting through hole; 13. Locking socket; 14. Locking pin; 2. Clamping assembly; 21. Connecting shaft; 211. Positioning part; 212. Rotating part; 213. Connecting part; 22. Clamping claw; 221. Rotating through hole; 222. Connecting post; 223. Arc-shaped abutment groove; 23. Connecting elastic element; 24. Clamping end; 241. Mounting shaft; 242. Clamping protrusion; 2421. Anti-detachment part; 243. Clamping groove; 244. Clamping gap; 25. Limiting post; 26. Unlocking end; 261. Pushing slope; 3. Unlocking assembly; 31. Unlocking frame; 32. Pushing post; 33. Pushing sleeve. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a clamping mechanism for a self-adhesive coil winding machine.

[0037] Reference Figure 1 A self-adhesive coil winding machine clamping mechanism includes a connecting frame 1, a clamping component 2, and an unlocking component 3. The connecting frame 1 is fixedly connected to the rotating mechanism of the winding machine, so that after the clamping component 2 clamps the wire, the rotating mechanism drives the clamping mechanism to rotate, thereby winding the wire onto the coil mold.

[0038] Reference Figure 1 and Figure 2 The clamping assembly 2 includes a connecting shaft 21, two sets of clamping jaws 22, and a connecting elastic element 23. The connecting shaft 21 is fixedly mounted on the connecting frame 1, and the clamping jaws 22 and the connecting shaft 21 are rotatably engaged. The connecting shaft 21 is bolt-shaped in general, and along its axial direction, it consists of a positioning part 211, a rotating part 212, and a connecting part 213. The outer diameter of the positioning part 211 is larger than that of the rotating part 212 and the connecting part 213, and it is used to abut against the outer side wall of the clamping jaws 22.

[0039] The two sets of clamping claws 22 are strip-shaped and each has a rotating through hole 221 that rotatably engages with the rotating part 212. The engagement of the two sets of clamping claws 22 and the connecting shaft 21 makes the clamping assembly 2 have a scissor-like structure. The connecting frame 1 has a connecting socket 11 for the connecting part 213 to be inserted. In this embodiment, the connecting socket 11 and the connecting part 213 are threaded together. In other embodiments, the connecting socket 11 can be press-fitted with the connecting part 213 or fixed by welding or other methods.

[0040] Reference Figure 2 and Figure 3Each of the two sets of clamping claws 22 has a clamping end 24 for clamping the wire at one end. A mounting shaft 241 for mounting the clamping claw 22 passes through the clamping end 24, and the clamping claw 22 has a screw plug for locking the mounting shaft 241. One set of clamping ends 24 has an integrally formed clamping protrusion 242, and the other set of clamping ends 24 has a clamping groove 243 corresponding to the clamping protrusion 242. The wire is clamped between the clamping protrusion 242 and the clamping groove 243. When the two sets of clamping ends 24 approach each other, the wire is compressed and deformed, improving the clamping strength of the clamping assembly 2 compared to using a friction pad. The clamping protrusion 242 also has an anti-detachment part 2421 at the end away from the connecting shaft 21. The anti-detachment part 2421 and the clamping groove 243 form a clamping gap 244. The clamping gap 244 reduces the probability of the wire coming off the clamping end 24 and further improves the clamping stability.

[0041] The connecting elastic element 23 is a tension spring, and the two sets of clamping claws 22 are fixed with connecting posts 222 for mounting the ends of the connecting elastic element 23. The connecting posts 222 are located on the side of the connecting shaft 21 away from the clamping end 24. The connecting elastic element 23 drives the two sets of clamping ends 24 to tend to move closer to each other, so that during the winding process, no additional drive source is needed to control the clamping of the clamping ends 24.

[0042] Reference Figure 4 To ensure the stability of the two sets of clamping claws 22 under normal conditions, a limiting post 25 is also installed on the connecting frame 1. The limiting post 25 is arranged between the two sets of clamping claws 22 and is located on the side of the connecting shaft 21 away from the clamping end 24. The connecting frame 1 has a mounting through hole 12 for inserting the limiting post 25, and the side wall of the connecting frame 1 has a locking socket 13 communicating with the mounting through hole 12. A locking pin 14 for pressing the limiting post 25 is interference-fitted into the locking socket 13 of the connecting frame 1.

[0043] Two sets of clamping claws 22 are provided with arc-shaped abutment grooves 223 on their corresponding side walls that fit with the limiting post 25. By setting the limiting post 25, when the clamping claws 22 switch from the open state to the closed state, the clamping claws 22 stop rotating after abutting against the limiting post 25, so that the two sets of clamping ends 24 will not be over-clamped by the connecting elastic member 23, thus preventing the wire from breaking.

[0044] Reference Figure 5The unlocking assembly 3 includes an unlocking frame 31 and a push column 32 disposed on the unlocking frame 31. The end of the clamping claw 22 away from the clamping end 24 is defined as the unlocking end 26. The unlocking frame 31 is fixedly connected to the drive source of the winding machine. The drive source is a cylinder, used to drive the entire unlocking assembly 3 to move towards the clamping claw 22. The push column 32 and the connecting shaft 21 are arranged in parallel, and the axis of the push column 32 is located between the two sets of clamping claws 22. The clamping claw 22 has a push inclined surface 261 on the unlocking end 26 for the push column 32 to abut against, so that the push column 32 can push both unlocking ends 26 simultaneously. A push sleeve 33 is also rotatably mounted on the push column 32. By the push sleeve 33 abutting against the push inclined surface 261, the sliding friction between the push column 32 and the unlocking end 26 is changed to rolling friction, reducing wear and increasing service life.

[0045] The implementation principle of the self-adhesive coil winding machine clamping mechanism in this application embodiment is as follows: During winding, the unlocking component 3 is moved toward the clamping component 2 by the driving source, and the pushing sleeve 33 abuts against the pushing inclined surface 261, so that the two sets of clamping ends 24 open in the direction away from each other. After the wire is arranged on the two sets of clamping ends 24, the unlocking component 3 is reset, and the two sets of clamping ends 24 automatically reset and close under the action of connection elasticity. The wire is squeezed and deformed by the clamping protrusion 242 and the clamping groove 243 to achieve clamping and fixing.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-adhesive coil winding machine clamping mechanism, comprising a connecting frame body (1) for installation on a winding machine, a clamping assembly (2) provided on the connecting frame body (1), and an unlocking assembly (3) for driving the clamping assembly (2) to open, the clamping assembly (2) comprising a connecting shaft (21) provided on the connecting frame body (1) and two sets of clamping claws (22) rotatably installed on the connecting shaft (21), characterized in that, It also includes a connecting elastic element (23) connecting the two sets of clamping claws (22). The ends of the clamping claws (22) are provided with clamping ends (24). One set of clamping claws (22) is provided with clamping protrusions (242) at the clamping ends (24), and the other set of clamping components (2) is provided with clamping grooves (243) corresponding to the clamping protrusions (242) at the clamping ends (24). The connecting elastic element (23) drives the two sets of clamping ends (24) to tend to move closer to each other.

2. The clamping mechanism for a self-adhesive coil winding machine according to claim 1, characterized in that, The clamping claw (22) is provided with an anti-detachment part (2421) at the end of the clamping protrusion (242), and the anti-detachment part (2421) and the clamping groove (243) form a clamping gap (244) to restrict the wire from falling out.

3. The clamping mechanism for a self-adhesive coil winding machine according to claim 1, characterized in that, The connecting elastic element (23) is a tension spring, and the clamping claw (22) is provided with a connecting post (222) for mounting the end of the connecting elastic element (23).

4. The clamping mechanism for a self-adhesive coil winding machine according to claim 1, characterized in that, The connecting frame (1) is also equipped with a limiting post (25), which is located between two sets of clamping claws (22) and on the side of the connecting shaft (21) away from the clamping end (24).

5. The self-adhesive coil winding machine clamping mechanism according to claim 4, characterized in that, The side wall of the clamping claw (22) is provided with an arc-shaped abutment groove (223) that abuts against the limiting post (25).

6. The clamping mechanism for a self-adhesive coil winding machine according to claim 1, characterized in that, The unlocking component (3) includes an unlocking frame (31) and a push post (32) disposed on the unlocking frame (31). The clamping claw (22) has an unlocking end (26) at the end away from the clamping end (24). The unlocking end (26) has a push slope (261) for the push post (32) to push.

7. The self-adhesive coil winding machine clamping mechanism according to claim 6, characterized in that, A push sleeve (33) is rotatably mounted on the push column (32).

8. The self-adhesive coil winding machine clamping mechanism according to claim 4, characterized in that, The connecting shaft (21) includes a rotating part (212) that cooperates with the clamping claw (22) and a connecting part (213) that is fixed to the connecting frame (1). The connecting part (213) and the connecting frame (1) are threaded together.

9. A clamping mechanism for a self-adhesive coil winding machine according to claim 8, characterized in that, The connecting frame (1) has an installation through hole (12) for the insertion of the limiting post (25), and the connecting frame (1) has a locking hole (13) that connects to the installation through hole (12), and a locking pin (14) is provided in the locking hole (13).

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