Wire cutting device of a wire winding machine
By designing a combination of cylinders, guide sleeves, and straightening pressure arms on the winding machine, the problem of inconvenient sleeve application at the ends of enameled wires was solved, enabling automatic straightening and efficient production of enameled wires.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHU SANHE INTELLIGENT EQUIP CO LTD
- Filing Date
- 2022-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
The existing winding machine's wire cutting device leaves the enameled wire end in an L-shape after cutting, with the tubing length exceeding the wire end, making it inconvenient to install the tubing and resulting in low production efficiency.
Design a wire cutting device including a cylinder, a guide sleeve, a sliding shaft, a wire clamping block, and a wire cutting knife. After cutting, the wire end of the enameled wire is clamped and straightened by the first and second straightening pressure arms. The straightening of the wire end of the enameled wire is achieved by the cooperation of the cylinder rod and the elastic element, which makes it easier to put the rubber tube on.
It enables automatic straightening of enameled wire ends, avoiding manual cutting, improving production efficiency, facilitating hose assembly, and enhancing ease of use.
Smart Images
Figure CN115378199B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of wire cutting devices for winding machines, and particularly to a wire cutting device for a winding machine. Background Technology
[0002] Currently, after the stator core of the motor is wound, the ends of the copper wire need to be covered with rubber tubes to prevent the enamel coating on the surface of the copper wire from being scratched. However, after the wire cutting device of the existing winding machine cuts the wire, the end of the enameled wire is L-shaped, and the length of the rubber tube is longer than the length of the end of the enameled wire, which is very inconvenient to cover with rubber tubes. Therefore, the end of the enameled wire can only be cut off manually by workers, which is very inconvenient and results in low production efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a wire cutting device for a winding machine that facilitates straightening of the wire ends of motor enameled wires, makes it easy to apply rubber tubing, is convenient to use, and has high production efficiency.
[0004] The objective of this invention is achieved as follows:
[0005] A wire cutting device for a winding machine, characterized in that it includes a cylinder, a guide sleeve, and a sliding shaft. The rear end of the guide sleeve is fixedly connected to the cylinder. The cylinder rod of the cylinder is fixedly connected to the inner end of the sliding shaft via a coupling. The sliding shaft is slidably disposed within the guide sleeve. The outer end of the sliding shaft is provided with a wire clamping block and a wire cutting knife. The front end of the guide sleeve is provided with an opening and a wire clamping hook. The wire clamping hook is provided with a wire clamping groove that cooperates with the wire clamping block. The two ends of the wire clamping groove extend to a first side and a second side of the wire clamping hook, respectively. A first straightening pressure arm and a second straightening pressure arm are rotatably disposed on the sliding shaft. The first straightening pressure arm and the second straightening pressure arm are respectively located on the first side and the second side of the wire clamping hook. A first elastic element is provided between the rear end of the first straightening pressure arm and the first side of the wire clamping hook. A second elastic element is provided between the rear end of the second straightening pressure arm and the second side of the wire clamping hook. A spring is provided between the guide sleeve and the coupling. The first and second straightening clamping arms of this invention can clamp the end of the enameled wire to the clamping hook after wire cutting. When the enameled wire is pulled out of the clamping groove, the straightening clamping arms straighten the end of the enameled wire, which makes it convenient to put a rubber tube on the end of the motor enameled wire later. There is no need to cut the end of the wire later, and the tube is very easy to put on. Therefore, this invention is convenient to use and has high production efficiency.
[0006] Specifically, in this invention, after the high-pressure gas is released by the unloading valve, the cylinder rod, under the elastic force of the spring, causes the sliding shaft, wire clamping block, and wire cutter to slide backward a short distance. The wire clamping block no longer clamps the first and second segments of the enameled wire, while the first straightening pressure arm still clamps the first segment of the enameled wire. As the motor moves, the first segment of the enameled wire is pulled out from the upper end of the wire clamping groove, and the first segment of the enameled wire is straightened by the first straightening pressure arm. Therefore, the end of the enameled wire in the motor winding is straight, without bending, and does not need to be cut, thus facilitating the subsequent application of rubber tubing to the end of the enameled wire by the worker.
[0007] The present invention can be further improved in the following ways.
[0008] The inner wall of the guide sleeve and the coupling are respectively provided with a first limiting boss and a second limiting boss. The coupling is provided with a front retaining ring and a rear retaining ring. The spring is provided on the coupling and is located between the front retaining ring and the rear retaining ring. The two ends of the spring abut against the front retaining ring and the rear retaining ring respectively. The front retaining ring, the spring and the rear retaining ring are located between the first limiting boss and the second limiting boss. The front retaining ring and the rear retaining ring abut against the first limiting boss and the second limiting boss respectively.
[0009] The two ends of the clamping groove are rounded, allowing the enameled wire to slide smoothly at the ends of the clamping groove, thereby effectively preventing the enameled wire from being cut or severed by the ends of the clamping groove and achieving the purpose of protecting the enameled wire.
[0010] The guide sleeve has a first clearance opening and a second clearance opening on its side wall corresponding to the first straightening and pressing arm and the second straightening and pressing arm, respectively. The present invention has a reasonable structural design, thereby avoiding interference between the side wall of the guide sleeve and the first straightening and pressing arm and the second straightening and pressing arm when the first straightening and pressing arm moves backward.
[0011] The inner end of the wire hook is fixedly connected to the inner side wall of the guide sleeve.
[0012] The inner sidewall of the wire clamping hook is provided with a guide groove along the extension and retraction direction of the cylinder rod. One end of the guide groove is connected to the wire cutting clearance groove. The wire cutting blade is slidably disposed in the guide groove, thereby making the sliding of the wire cutting blade and the wire clamping block more stable.
[0013] The hook head of the wire clamp is provided with a wire cutting clearance groove at the position corresponding to the wire cutting blade. The structure of the present invention is reasonably designed so that the wire cutting blade will not collide with the hook head when cutting the wire, and the wire cutting blade slides into and out of the wire cutting clearance groove.
[0014] The clamping block is detachably located at the outer end of the sliding shaft, making it easy to replace the clamping block.
[0015] The wire cutter is detachably mounted on the wire clamping block, making it easy to replace the wire cutter.
[0016] The clamping block is equipped with anti-slip clamping teeth, which makes the clamping block clamp the wire more firmly.
[0017] The blade of the wire cutter is located in front of the anti-slip wire clamping teeth.
[0018] The first elastic element and the second elastic element are spring plungers. Because the spring plungers are elastic, the front ends of the first straightening pressure arm and the front ends of the second straightening pressure arm tend to move toward the wire hook. The front ends of the first straightening pressure arm and the front ends of the second straightening pressure arm always have clamping force and maintain a clamped state.
[0019] The wire clamping hook, the first straightening clamping arm, and the second straightening clamping arm are all L-shaped. The wire clamping hook, the shape of the first straightening clamping arm, and the structure of the second straightening clamping arm of the present invention are reasonably designed, making it convenient for the first straightening clamping arm and the second straightening clamping arm to clamp the enameled wire.
[0020] The beneficial effects of this invention are as follows:
[0021] The first and second straightening clamping arms of this invention can clamp the end of the enameled wire to the clamping hook after wire cutting. When the enameled wire is pulled out of the clamping groove, the straightening clamping arms straighten the end of the enameled wire, which makes it convenient to put a rubber tube on the end of the motor enameled wire later. There is no need to cut the end of the wire later, and the tube is very easy to put on. Therefore, this invention is convenient to use and has high production efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the wire cutting device (the wire clamping block is in a forward clamping state and the two straightening and pressing arms are in a clamping state) of the winding machine of the present invention.
[0023] Figure 2 This is a schematic diagram of the wire cutting device of the winding machine of the present invention from another angle.
[0024] Figure 3 yes Figure 1 Top view.
[0025] Figure 4 yes Figure 3 Sectional view at point AA.
[0026] Figure 5 yes Figure 3 Sectional view at point BB.
[0027] Figure 6 This is a schematic diagram of the structure of the clamping block of the present invention when it is in a fully retracted state.
[0028] Figure 7This is a cross-sectional view of the clamping block of the present invention in a fully retracted state.
[0029] Figure 8 This is a schematic diagram of the structure of the clamping block of the present invention when it is in a slightly retracted state.
[0030] Figure 9 yes Figure 8 Side view.
[0031] Figure 10 This is a cross-sectional view of the clamping block of the present invention in a slightly retracted state.
[0032] Figure 11 This is an exploded view of the wire cutting device of the winding machine of the present invention. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0034] Example 1, as Figures 1 to 11 As shown, a wire cutting device for a winding machine includes a cylinder 1, a guide sleeve 2, and a sliding shaft 3. The rear end of the guide sleeve 2 is fixedly connected to the cylinder 1. The cylinder rod of the cylinder 1 is fixedly connected to the inner end of the sliding shaft 3 via a coupling 14. The sliding shaft 3, the cylinder rod, and the coupling 14 are slidably disposed within the guide sleeve 2. The outer end of the sliding shaft 3 is provided with a wire clamping block 5 and a wire cutting blade 4. The front end of the guide sleeve 2 is provided with an opening 20 and a wire clamping hook 8. The outer end of the sliding shaft 3 extends out of or retracts into the guide sleeve 2 through the opening 20. The wire clamping hook 8 is provided with a fitting that mates with the wire clamping block 5. The clamping groove 16 is connected, and the clamping block 5 is located on one side of the clamping groove 16. The two ends of the clamping groove 16 extend to the first side 81 and the second side 82 of the clamping hook head 8, respectively. A first straightening pressing arm 6 and a second straightening pressing arm 7 are rotatably provided on the sliding shaft 3. The front ends of the first straightening pressing arm 6 and the second straightening pressing arm 7 are located on the first side 81 and the second side 82 of the clamping hook head, respectively. A first elastic element 9 is provided between the rear end of the first straightening pressing arm 6 and the sliding shaft 3, and a second elastic element 10 is provided between the rear end of the second straightening pressing arm 7 and the sliding shaft 3. A spring 13 is provided between the side wall of the guide sleeve and the coupling.
[0035] This is a more specific technical solution of the present invention.
[0036] The inner wall of the guide sleeve 2 and the coupling 14 are respectively provided with a first limiting boss 23 and a second limiting boss 19. The coupling 14 is provided with a front retaining ring 12 and a rear retaining ring 11 in sequence. The spring 13 is provided on the coupling and is located between the front retaining ring 12 and the rear retaining ring 11. The two ends of the spring 13 abut against the front retaining ring 12 and the rear retaining ring 11 respectively. The front retaining ring 12, the spring 13 and the rear retaining ring 11 are located between the first limiting boss and the second limiting boss. The front retaining ring 12 and the rear retaining ring 11 abut against the first limiting boss 23 and the second limiting boss 19 respectively.
[0037] The two ends of the clamping groove 16 are rounded.
[0038] The guide sleeve 2 has a first clearance opening 21 and a second clearance opening 22 on its side wall corresponding to the first straightening pressing arm 6 and the second straightening pressing arm 7, respectively.
[0039] The inner end of the wire hook 8 is fixedly connected to the inner side wall of the guide sleeve 2.
[0040] The wire clipping hook 8 is provided with a wire cutting clearance groove 15 at the position corresponding to the wire cutting blade 4.
[0041] The inner side wall of the wire clamping hook 8 is provided with a guide groove 18 along the extension and retraction direction of the cylinder rod. One end of the guide groove 18 is connected to the wire cutting clearance groove 15, and the wire cutting blade 4 is slidably disposed in the guide groove 18.
[0042] The clamping block 5 is detachably mounted on the outer end of the sliding shaft 3.
[0043] The wire cutter 4 is detachably mounted on the wire clamping block 5.
[0044] The clamping block 5 is provided with anti-slip clamping teeth 17.
[0045] The blade of the wire cutter 4 is located in front of the anti-slip wire clamping teeth 17.
[0046] The first elastic element 9 and the second elastic element 10 are spring plungers. Because the spring plungers are elastic, the front ends of the first straightening wire pressing arm 6 and the second straightening wire pressing arm 7 tend to move toward the wire clamping hook 8. The front ends of the first straightening wire pressing arm 6 and the second straightening wire pressing arm 7 always have clamping force and maintain a clamped state.
[0047] The shapes of the wire clamping hook, the first straightening wire pressing arm, and the second straightening wire pressing arm are all L-shaped.
[0048] The cylinder 1 of this invention is mounted on a horizontal moving device, which drives the cylinder to move forward and backward. The cylinder 1 is connected to an external air supply device (air pump) through a discharge valve, which is used to discharge the high-pressure gas inside the cylinder 1. The horizontal moving device can be a slide cylinder, or a combination of a motor and a lead screw drive mechanism.
[0049] The working principle of this invention is:
[0050] When the present invention begins to hook the line, the cylinder 1 drives the sliding shaft 3 to slide backward through the cylinder rod and coupling 14, thereby driving the wire clamping block 5, the wire cutter 4, the first straightening pressure arm 6, and the second straightening pressure arm 7 to slide backward. The sliding shaft 3 also pushes the front retaining ring 12, the spring 13, and the rear retaining ring 11 to slide backward. The front retaining ring 12 disengages from the second limiting boss 19, the cylinder rod no longer presses the rear retaining ring 11, the compressed spring 13 recovers its elastic deformation and extends, and the front retaining ring 12 and the rear retaining ring 11 abut against the inner end of the sliding shaft 3 and the second limiting boss 19, respectively, until the cylinder rod retracts to the rear stop position of the cylinder 1 (at this time the wire clamping block is in a fully retracted state), and the sliding shaft 3 stops sliding backward. Therefore, the wire clamping block 5, the wire cutter 4, the first straightening pressure arm 6, and the second straightening pressure arm 7 move away from the wire clamping groove 16 of the wire clamping hook head 8.
[0051] Following the horizontal movement device, cylinder 1 is first driven forward towards the winding machine, and then backward. During this process, the wire-clamping hook 8 hooks the enameled wire between the winding machine and the motor stator core. Then, cylinder 1 drives the sliding shaft 3 to slide towards the wire-clamping groove 16. The sliding shaft 3 extends forward from the opening 20. The coupling 14 drives the rear retaining ring 11, spring 13, and front retaining ring 12 to slide forward until the cylinder rod advances to the front stop position of cylinder 1. At this time, the front retaining ring 12 abuts against the first limiting boss 23, and the rear retaining ring 11 abuts against the second limiting boss 19. The front retaining ring 12 and the rear retaining ring 11 compress the spring 13. The sliding shaft 3 drives the wire-clamping block 5 and... The wire cutter 4 clamps and cuts the wire simultaneously. The wire clamping block 5 presses the enameled wire tightly into the wire clamping groove 16 (at this time, the wire clamping block is in a forward clamping state). The wire cutter 4 is inserted into the wire cutting clearance groove 15, and the enameled wire is cut into two sections. At the same time, the two sections of the enameled wire are clamped between the first straightening pressure arm 6 and the wire clamping hook 8, and between the second straightening pressure arm 7 and the wire clamping hook 8, respectively. The first section of the enameled wire belongs to the coil winding of the motor, and the second section of the enameled wire comes from the winding mechanism. The first section of the enameled wire is clamped in the upper end of the wire clamping groove 16 by the first straightening pressure arm 6, and the second section of the enameled wire is clamped in the wire clamping groove 16 by the wire clamping block 5.
[0052] Then, the control center opens the unloading valve, the high-pressure air in cylinder 1 is released, the compressed spring 13 recovers its elastic deformation and stretches, the spring 13 pushes the rear retaining ring 11 and coupling 14 to slide back a short distance (at this time the cylinder rod is in the middle position), which in turn drives the sliding shaft, wire clamping block 5, and wire cutter 4 to slide back a short distance (at this time the wire clamping block is in a slightly retracted state). The wire clamping block 5 and wire cutter 4 disengage from the wire clamping groove 16, and the wire clamping block 5 no longer clamps the first and second sections of the enameled wire, but the two sections of the enameled wire are always clamped between the first straightening pressure arm 6 and the wire clamping hook 8, and between the second straightening pressure arm 7 and the wire clamping hook 8, respectively. As the motor moves, the first section of the enameled wire is pulled out from the upper end of the wire clamping groove 16, and the first section of the enameled wire is shaped and straightened by the first straightening pressure arm 6. Therefore, the ends of the enameled wires in the motor windings are straight, without bends, and do not need to be cut, which makes it convenient for workers to subsequently apply rubber sleeves to the ends of the enameled wires.
Claims
1. A wire cutting device for a winding machine, characterized in that, The device includes a cylinder, a guide sleeve, and a sliding shaft. The rear end of the guide sleeve is fixedly connected to the cylinder. The cylinder rod of the cylinder is fixedly connected to the inner end of the sliding shaft via a coupling. The sliding shaft is slidably disposed within the guide sleeve. The outer end of the sliding shaft is provided with a wire clamping block and a wire cutter. The front end of the guide sleeve is provided with an opening and a wire clamping hook. The wire clamping hook is provided with a wire clamping groove that cooperates with the wire clamping block. The two ends of the wire clamping groove extend to a first side and a second side of the wire clamping hook, respectively. A first straightening and pressing arm and a second straightening and pressing arm are rotatably disposed on the sliding shaft. The first straightening and pressing arm and the second straightening and pressing arm are respectively located on the first side and the second side of the wire clamping hook. A first elastic element is provided between the rear end of the first straightening and pressing arm and the first side of the wire clamping hook. A second elastic element is provided between the rear end of the second straightening and pressing arm and the second side of the wire clamping hook. A spring is provided between the guide sleeve and the coupling.
2. The wire cutting device of the winding machine according to claim 1, characterized in that, The inner wall of the guide sleeve and the coupling are respectively provided with a first limiting boss and a second limiting boss. The coupling is provided with a front retaining ring and a rear retaining ring. The spring is provided on the coupling and is located between the front retaining ring and the rear retaining ring. The front retaining ring, the spring and the rear retaining ring are located between the first limiting boss and the second limiting boss. The front retaining ring and the rear retaining ring abut against the first limiting boss and the second limiting boss respectively.
3. The wire cutting device of the winding machine according to claim 1, characterized in that, The two ends of the clamping groove are rounded.
4. The wire cutting device of the winding machine according to claim 1, characterized in that, The guide sleeve has a first clearance opening and a second clearance opening on its side wall corresponding to the first straightening pressure arm and the second straightening pressure arm, respectively.
5. The wire cutting device of the winding machine according to claim 1, characterized in that, The wire clip head is provided with a wire cutting clearance groove at the position corresponding to the wire cutting blade.
6. The wire cutting device of the winding machine according to claim 5, characterized in that, The inner wall of the wire clamp hook is provided with a guide groove along the extension and retraction direction of the cylinder rod. One end of the guide groove is connected to the wire cutting clearance groove, and the wire cutting blade is slidably disposed in the guide groove.
7. The wire cutting device of the winding machine according to claim 1, characterized in that, The wire cutter is detachably mounted on the wire clamping block, and the wire clamping block is detachably mounted on the outer end of the sliding shaft.
8. The wire cutting device of the winding machine according to claim 1, characterized in that, The clamping block is equipped with anti-slip clamping teeth.
9. The wire cutting device of the winding machine according to claim 1, characterized in that, The first elastic element and the second elastic element are spring plungers.
10. The wire cutting device of the winding machine according to claim 1, characterized in that, The shapes of the wire clamping hook, the first straightening wire pressing arm, and the second straightening wire pressing arm are all L-shaped.