Wire threading device based on medium-speed wire cutting machine tool

Abstract

The utility model relates to the field of cutting machine tools, in particular to a wire threading device based on a medium-speed wire cutting machine tool, which comprises a base and a supporting seat, a disc seat is rotatably mounted at the center of the front end of the base, a motor I is mounted at the rear end of the base, and the output end of the motor I penetrates through the rear end of the base and is connected with a rotating shaft of the disc seat; the front end of the disc seat is fixedly connected with four supporting springs which surround the disc seat by a circle at equal intervals, the front ends of the supporting springs are fixedly connected with movable rings, the outer wall of the disc seat is provided with four limiting grooves which are distributed around the disc seat by a circle at equal intervals, the outer wall of the disc seat is slidably provided with a wire disc, the inner wall of the wire disc is fixedly connected with limiting blocks, and the limiting blocks are matched with the limiting grooves. By means of the additionally-arranged spring pin and sliding plate mechanism, the scroll can be pushed backwards in the installation process, the spring pin pops up to rapidly install the scroll on the scroll base, the movable ring can be pressed in the disassembly process, the sliding plate pushes the spring pin to retract, the scroll can be rapidly disassembled, and the replacement efficiency of the scroll can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of cutting machine tools, specifically relating to a wire threading device based on a medium-speed wire EDM machine. Background Technology

[0002] The electrode wire used in wire EDM machines is a core consumable in the machining process. Its material and performance directly affect the machining accuracy, speed and surface quality. Threading is the key to ensuring that the electrode wire passes through the workpiece and guide wheel efficiently and accurately, which directly affects the machining accuracy and stability.

[0003] When threading wire, existing cutting machine tools typically pass one end of the wire through the lower support, then sequentially through the lower fixing hole, the cutting hole, and the upper fixing hole. Finally, the wire tension is adjusted. Common wire feeding mechanisms usually fix the wire spool to the spool holder with bolts. When changing the wire type, the entire spool needs to be disassembled. Disassembling bolt-fixed spools is cumbersome, and the wire needs to be replaced after prolonged use. Common wire feeding mechanisms lack a cutting device, requiring workers to manually cut the wire, which is also cumbersome. Utility Model Content

[0004] To overcome the inconvenience of changing wires and wire spools during wire threading on cutting machines, which affects cutting efficiency, a wire threading device based on a medium-speed wire EDM machine is proposed.

[0005] The technical solution of this utility model is as follows: a wire threading device based on a medium-speed wire EDM machine includes a base and a support base. A disc base is rotatably mounted at the front center of the base. A motor is mounted at the rear end of the base. The output end of the motor passes through the rear end of the base and is connected to the rotating shaft of the disc base. Four support springs are fixedly connected to the front end of the disc base at equal intervals around the disc base. A movable ring is fixedly connected to the front end of the support springs. Four limiting grooves are equidistantly distributed around the disc base on the outer wall. A wire spool is slidably mounted on the outer wall of the disc base. A limiting block is fixedly mounted on the inner wall of the wire spool. The limiting block is adapted to the limiting groove. Four slots are opened at the front edge of the disc base. The slots are connected to the limiting grooves. A groove body is opened at the end of the slot near the center of the disc base. A spring pin is fixedly mounted in the groove. The rear end of the spring pin is in contact with the front end of the limiting block. A sliding groove is opened at the front end of the slot. A sliding plate is slidably mounted in the sliding groove. The rear end of the sliding plate is fixedly connected to the front end of the movable ring. The rear end of the sliding plate and the front end of the spring pin are arc surfaces and in contact.

[0006] Furthermore, a support base is fixed to the right end of the base, and wire grooves are opened through the left and right ends of the support base. The inner wall of the rear end of the support base is provided with dovetail grooves and rotating grooves distributed vertically. Lead screws are rotatably installed on the inner walls of the left and right ends of the rotating grooves.

[0007] Furthermore, a second motor is installed on the right end of the support base. The output end of the second motor passes through the right end of the support base and is connected to the rotating shaft of the lead screw. A movable block is provided at the front end of the support base. A screw hole is provided through the left and right ends of the movable block, and the screw hole is adapted to the lead screw.

[0008] Furthermore, a screw hole two is provided through the front end of the support base. The screw hole two is connected to the right side groove. A bolt is installed in the internal thread of the screw hole two, and a soft pad is fixed to the rear end of the bolt.

[0009] Furthermore, a slider is fixedly connected to the rear end of the movable block, the slider is adapted to the dovetail groove, and an electric claw is installed at the front end of the movable block, the electric claw being flush with the groove.

[0010] Furthermore, a cutting frame is fixedly connected to the front end of the support base, and electric cylinders are installed on the inner walls of the upper and lower ends of the cutting frame. A cutting blade is fixedly connected to the output end of the upper electric cylinder, and a pad is fixedly connected to the output end of the lower electric cylinder.

[0011] Furthermore, the pads correspond one-to-one with the cutters, and a controller is fixedly connected to the upper end of the support base. The controller is electrically connected to motor one, motor two, electric cylinder and electric claw.

[0012] The beneficial effects of this utility model are as follows: The limiting groove can limit the limiting block. When the limiting block is pushed backward, it can fit against the arc surface of the spring pin, causing the spring pin to retract. When the limiting block is fully inserted into the limiting groove, the spring pin can pop out and fit against the front end of the limiting block, thereby fixing the wire spool to the outer wall of the spool base. Pushing the movable ring backward can make the sliding plate fit against and push the spring pin to retract, thus releasing the limiting fixation of the wire spool. Compared with the existing wire threading mechanism of the cutting machine tool, the added spring pin and sliding plate mechanism allows the wire spool to be pushed backward during installation. After being pushed to the bottom of the spool base, the spring pin pops out, quickly installing the wire spool on the spool base. During disassembly, the movable ring can be pressed to make the sliding plate push the spring pin to retract, thus quickly disassembling the wire spool and effectively improving the efficiency of wire spool replacement. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0014] Figure 2 The diagram shown is a three-dimensional structural disassembly diagram of this utility model;

[0015] Figure 3 The diagram shown is a three-dimensional disassembled view of the base, wire disc, disc holder, and movable ring of this utility model.

[0016] Figure 4 This utility model is shown. Figure 3 A magnified diagram showing the splitting at point A;

[0017] Figure 5The diagram shown is a three-dimensional disassembled view of the support base, lead screw, movable block, electric claw, and motor II of this utility model.

[0018] Figure 6 The diagram shown is a three-dimensional disassembled view of the cutting frame, electric cylinder, cutting blade, and pad block of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Base; 2. Support base; 3. Motor 1; 4. Disc base; 5. Controller; 6. Thread spool; 7. Limit block; 8. Movable ring; 9. Support spring; 10. Limit groove; 11. Groove opening; 12. Groove body; 13. Slide groove; 14. Slide plate; 15. Spring pin; 16. Movable block; 17. Electric claw; 18. Wire groove; 19. Rotating groove; 20. Lead screw; 21. Motor 2; 22. Screw hole 1; 23. Dovetail groove; 24. Slider; 25. Screw hole 2; 26. Bolt; 27. Cutting frame; 28. Electric cylinder; 29. ​​Cutting blade; 30. Pad block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-6 This utility model provides an embodiment of a wire threading device based on a medium-speed wire EDM machine, comprising a base 1 and a support base 2. A disc base 4 is rotatably mounted at the front center of the base 1. A motor 3 is mounted at the rear end of the base 1. The output end of the motor 3 passes through the rear end of the base 1 and is connected to the rotating shaft of the disc base 4. Four support springs 9 are fixedly connected to the front end of the disc base 4 at equal intervals around the disc base 4. A movable ring 8 is fixedly connected to the front end of the support springs 9. Four limiting grooves 10 are equally distributed around the disc base 4 on the outer wall. A wire spool 6 is slidably mounted on the outer wall of the disc base 4. A limiting block 7 is fixedly connected to the inner wall of the silk spool 6. The limiting block 7 is adapted to the limiting groove 10. Four slots 11 are opened at the front edge of the spool base 4. The slots 11 are connected to the limiting groove 10. A groove body 12 is opened at one end of the slot 11 near the center of the spool base 4. A spring pin 15 is fixedly connected in the groove body 12. The rear end of the spring pin 15 is in contact with the front end of the limiting block 7. A sliding groove 13 is opened at the front end of the slot 11. A sliding plate 14 is slidably installed in the sliding groove 13. The rear end of the sliding plate 14 is fixedly connected to the front end of the movable ring 8. The rear end of the sliding plate 14 and the front end of the spring pin 15 are arc surfaces and in contact.

[0022] The limiting groove 10 can limit the limiting block 7 and limit the rotation of the wire spool 6. When the limiting block 7 is pushed backward, it can fit against the arc surface of the spring pin 15, causing the spring pin 15 to retract. When the limiting block 7 is fully inserted into the limiting groove 10, the spring pin 15 can pop out and fit against the front end of the limiting block 7, thereby fixing the wire spool 6 to the outer wall of the spool base 4. Pushing the movable ring 8 backward can make the sliding plate 14 fit against and push the spring pin 15 to retract, thereby releasing the limiting fixation of the wire spool 6, which facilitates the disassembly and installation of the wire spool 6. During operation, the wire spool 6 can be quickly replaced, improving the threading efficiency.

[0023] Please see Figures 2-5 In this embodiment, a support base 2 is fixedly connected to the right end of the base 1. Wire grooves 18 are provided through the left and right ends of the support base 2. The inner wall of the rear end of the support base 2 is provided with dovetail grooves 23 and a rotating groove 19 distributed vertically. Lead screws 20 are rotatably installed on the inner walls of the left and right ends of the rotating groove 19. In use, the wire can be fed to the position where it needs to be threaded through the support base 2, making it convenient for workers to perform the threading operation. A second motor 21 is installed at the right end of the support base 2. The output end of the second motor 21 passes through the right end of the support base 2 and is connected to the rotating shaft of the lead screw 20. A movable block 16 is provided at the front end of the support base 2. Screw holes 22 are provided through the left and right ends of the movable block 16. The screw holes 22 are adapted to the lead screw 20. In use, the output end of the second motor 21 can drive the lead screw 20 to rotate, thereby driving the movable block 16 to move left and right along the rotating groove 19.

[0024] Please see Figure 5 In this embodiment, a screw hole 25 is provided through the front end of the support base 2. The screw hole 25 is connected to the right side wire groove 18. A bolt 26 is installed in the screw hole 25. A soft pad is fixed to the rear end of the bolt 26. In use, the bolt 26 can fix the wire in the right wire groove 18 to prevent the wire from shifting. The soft pad can prevent damage to the wire. A slider 24 is fixed to the rear end of the movable block 16. The slider 24 is adapted to the dovetail groove 23. An electric claw 17 is installed at the front end of the movable block 16. The electric claw 17 is flush with the wire groove 18. In use, the slider 24 and the dovetail groove 23 can improve the stability of the movable block 16 when moving back and forth. The electric claw 17 can grab the wire and send it out of the support base 2.

[0025] Please see Figures 5-6In this embodiment, a cutting frame 27 is fixedly connected to the front end of the support base 2. Electric cylinders 28 are installed on the inner walls of the upper and lower ends of the cutting frame 27. A cutter 29 is fixedly connected to the output end of the upper electric cylinder 28, and a pad 30 is fixedly connected to the output end of the lower electric cylinder 28. In use, the cutter 29 and the pad 30 can be driven to move closer to each other through the output end of the electric cylinder 28, so as to cut the wire. The pad 30 and the cutter 29 correspond one-to-one. A controller 5 is fixedly connected to the upper end of the support base 2. The controller 5 is electrically connected to the motor 3, the motor 21, the electric cylinder 28 and the electric claw 17. In use, the equipment can be controlled through the controller 5, which is convenient for workers to perform the wire threading operation.

[0026] When working, first, align the inner wall of the wire spool 6 with the outer wall of the base 4, align the limiting block 7 with the limiting groove 10, and press the wire spool 6 backward so that the spring pin 15 pops out and fits against the limiting block 7, thus completing the installation and fixing of the wire spool 6. Next, pull out one end of the wire and let the wire pass through the left wire groove 18, and place the wire on the upper end of the electric claw 17. Then, use the controller 5 to make the electric claw 17 grab the wire. Then, use the controller 5 to start the motor 3 and the motor 21. The output end of the motor 3 drives the wire spool 6 to rotate, releasing the wire, and the motor 21 drives the lead screw 20 to rotate, causing the movable block 16 to pull out the wire. Finally, wait for the wire to be fed into the right wire groove 18, and then you can manually thread the wire.

[0027] After threading, rotate bolt 26 to make bolt 26 fit and press the wire, thus fixing the wire. Then, use controller 5 to release electric claw 17 and reverse motor 21 to drive movable block 16 to fit against the inner wall of the left end of support base 2. Then, control electric claw 17 to clamp the wire. Then, use controller 5 to extend the output end of electric cylinder 28 and wait for cutter 29 and pad 30 to come close to each other to cut the wire. Finally, control electric cylinder 28 to retract.

[0028] Through the above steps, the limiting groove 10 can limit the limiting block 7 and limit and fix the rotation of the wire spool 6. When the limiting block 7 is pushed backward, it can fit against the arc surface of the spring pin 15, causing the spring pin 15 to retract. When the limiting block 7 is fully inserted into the limiting groove 10, the spring pin 15 can pop out and fit against the front end of the limiting block 7, thereby fixing the wire spool 6 to the outer wall of the spool base 4. Pushing the movable ring 8 backward can make the sliding plate 14 fit against and push the spring pin 15 to retract, thereby releasing the limitation and fixing of the wire spool 6, which is convenient for the disassembly and installation of the wire spool 6. During operation, the wire spool 6 can be quickly replaced, which solves the problem that it is inconvenient to replace the wire and wire spool when threading the wire on the cutting machine tool, which affects the cutting efficiency.

Claims

1. A wire threading device based on a medium-speed wire EDM machine, comprising a base (1) and a support (2), characterized in that: A disc base (4) is rotatably mounted on the front end of the base (1), and a motor (3) is mounted on the rear end of the base (1). The output end of the motor (3) is connected to the rotating shaft of the disc base (4). Four support springs (9) are fixedly connected to the front end of the disc base (4) at equal intervals around the disc base (4). A movable ring (8) is fixedly connected to the front end of the support springs (9). Four limiting grooves (10) are equidistantly distributed around the disc base (4) on the outer wall. A wire disc (6) is provided on the outer wall of the disc base (4). A limiting block (7) is fixedly connected to the inner wall of the wire disc (6). The limiting block (7) is compatible with the limiting groove (10). The front edge of the disc base (4) is provided with a slot (11), which is connected to the limiting slot (10). The end of the slot (11) near the center of the disc base (4) is provided with a groove (12), and a spring pin (15) is fixedly connected in the groove (12). The rear end of the spring pin (15) is in contact with the front end of the limiting block (7). The front end of the slot (11) is provided with a sliding groove (13), and a sliding plate (14) is slidably provided in the sliding groove (13). The rear end of the sliding plate (14) is fixedly connected to the front end of the movable ring (8). The rear end of the sliding plate (14) and the front end of the spring pin (15) are arc surfaces and in contact.

2. The wire threading device based on a medium-speed wire EDM machine according to claim 1, characterized in that: The right end of the base (1) is fixed with a support seat (2). The left and right ends of the support seat (2) are provided with wire grooves (18). The inner wall of the rear end of the support seat (2) is provided with dovetail grooves (23) and rotating grooves (19) distributed vertically. The inner walls of the left and right ends of the rotating groove (19) are rotatably installed with screws (20).

3. The wire threading device based on a medium-speed wire EDM machine according to claim 2, characterized in that: The right end of the support base (2) is equipped with a second motor (21). The output end of the second motor (21) passes through the right end of the support base (2) and is connected to the shaft of the lead screw (20). The front end of the support base (2) is provided with a movable block (16). The left and right ends of the movable block (16) are provided with screw holes (22). The screw holes (22) are adapted to the lead screw (20).

4. The wire threading device based on a medium-speed wire EDM machine tool according to claim 3, characterized in that: The front end of the support base (2) is provided with a screw hole (25), which is connected to the right side groove (18). A bolt (26) is installed in the internal thread of the screw hole (25), and a soft pad is fixed to the rear end of the bolt (26).

5. The wire threading device based on a medium-speed wire EDM machine according to claim 4, characterized in that: The rear end of the movable block (16) is fixed with a slider (24), which is adapted to the dovetail groove (23). The front end of the movable block (16) is equipped with an electric claw (17), which is flush with the wire groove (18).

6. The wire threading device based on a medium-speed wire EDM machine according to claim 5, characterized in that: A cutting frame (27) is fixedly connected to the front end of the support base (2). Electric cylinders (28) are installed on the inner walls of the upper and lower ends of the cutting frame (27). A cutter (29) is fixedly connected to the output end of the upper electric cylinder (28), and a pad (30) is fixedly connected to the output end of the lower electric cylinder (28).

7. The wire threading device based on a medium-speed wire EDM machine according to claim 6, characterized in that: The pad (30) corresponds to the cutter (29) one by one. The upper end of the support base (2) is fixed with the controller (5). The controller (5) is electrically connected to the motor one (3), the motor two (21), the electric cylinder (28) and the electric claw (17).

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