Automatic wire collecting device of a wire cutting machine tool

Abstract

This utility model relates to the technical field of wire take-up devices for machine tools, and discloses an automatic wire take-up device for wire cutting machine tools, including a take-up spool. Two drive shafts are symmetrically arranged at both ends of the take-up spool, and each drive shaft has a mounting keyway on its side. A first rotating support frame is provided on one side of the take-up spool, and a second rotating support frame is provided on the other side of the take-up spool. This utility model provides a spring holder and a wire clamping spring on the take-up spool. The spring holder can be separated from the take-up spool by the abutment of the cylinder body, so that the molybdenum wire passing through the wire guide can be fixed by the spring holder. The servo motor drives the take-up spool to rotate through the transmission rod, thereby better winding and taking up the molybdenum wire for machine tools. The entire take-up process is more uniform in force, and the molybdenum wire is wound more tightly on the take-up spool, without the phenomenon of loose wire, which is more suitable for molybdenum wire take-up operations.

Description

Technical Field

[0001] This utility model relates to the technical field of wire take-up devices for machine tools, specifically an automatic wire take-up device for wire cutting machine tools. Background Technology

[0002] Wire EDM (Electrical Discharge Machining) machines, belonging to the field of electrical discharge machining, were invented by the Lazarinko couple in the Soviet Union. While researching the phenomenon and causes of corrosion damage to switch contacts due to spark discharge, they discovered that the instantaneous high temperature of an electric spark could melt, oxidize, and corrode localized metal, thus pioneering and inventing the EDM method. Wire EDM is a branch of EDM, a process that directly utilizes electric sparks for machining. It uses a moving wire (electrode wire) as the tool electrode to cut the workpiece, hence the name wire EDM. In wire EDM, the relative movement between the workpiece and the electrode wire is achieved by digital control, hence it is also called CNC wire EDM, or simply wire EDM.

[0003] After processing with molybdenum wire, the molybdenum wire needs to be wound up. However, the existing molybdenum wire winding device for wire EDM machines requires manual lifting of the molybdenum wire, threading it through the drive wheel, and winding it onto the winding drum. This winding method makes it difficult to wind the molybdenum wire evenly. During the winding process, uneven tension of the molybdenum wire can easily lead to loose winding on the winding drum, causing problems for subsequent use of the molybdenum wire. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic wire take-up device for wire EDM machines. This solves the problem that existing wire take-up devices for molybdenum wire in wire EDM machines still require manual lifting of the molybdenum wire, threading it through a transmission wheel, and winding it onto a take-up spool for take-up. This take-up method makes it difficult to evenly wind the molybdenum wire, and uneven tension during the winding process can easily lead to loose wire winding on the take-up spool, causing problems for subsequent use of the molybdenum wire.

[0005] This utility model provides the following technical solution: an automatic wire take-up device for a wire cutting machine tool, including a take-up spool, two drive shafts symmetrically arranged at both ends of the take-up spool, each drive shaft having a mounting keyway on its side, and a first rotating support frame arranged on one side of the take-up spool.

[0006] A second rotating support frame is provided on the other side of the take-up spool. Both the first and second rotating support frames have a central through hole in the middle. The end of the drive shaft is rotatably inserted into the central through hole. A servo motor is provided on the side of the second rotating support frame. The drive end of the servo motor is connected to a transmission rod. A key pin is provided on the transmission rod. The end of the transmission shaft passes through the central through hole on the second rotating support frame and is connected to the transmission rod. The key pin is inserted into the mounting keyway. An upper air pipe seat is provided at the top of the take-up spool. A lower air pipe seat is connected to the bottom of the upper air pipe seat.

[0007] Preferred technical solution 1: The take-up drum is provided with an air pipe connector body, which is connected to the bottom end of the lower air pipe seat. A cylinder body is installed on the inner wall of the bottom of the take-up drum. The cylinder body and the air pipe connector body are connected by a connecting air pipe. An air inlet connector is connected to the top of the upper air pipe seat. A pipe mounting seat is fitted on the upper air pipe seat. The side of the pipe mounting seat is connected to the second rotating support frame by two fixing screws.

[0008] Preferred technical solution 2: The bottom of the take-up spool is provided with a spring plate seat, the side of the spring plate seat is provided with a wire clamping spring plate, the bottom of the take-up spool is provided with a wire inlet guide, and the molybdenum wire body passes through the wire inlet guide.

[0009] Preferred technical solution three: Limiting rings are provided on the sides of the second rotating support frame and the first rotating support frame.

[0010] This solution enables the take-up drum to rotate more stably under the drive of the servo motor.

[0011] Preferred technical solution four: The bottom end of the cylinder body passes through the take-up drum and is connected to the spring plate seat through a spring.

[0012] This design enables the cylinder body to better push and reset the spring holder.

[0013] Preferred technical solution five: The end of the insertion catheter is flat.

[0014] This design allows the end of the insertion catheter to be better inserted into the inner wall of the wire clamping spring.

[0015] Compared with the prior art, this utility model provides an automatic wire take-up device for wire EDM machines, which has the following advantages:

[0016] (1) This utility model is provided with a spring plate seat and a wire clamping spring plate on the take-up drum. The spring plate seat can be separated from the take-up drum under the contact of the cylinder body, so that the molybdenum wire body passing through the wire guide can be fixed by the spring plate seat. The servo motor drives the take-up drum to rotate through the transmission rod, so as to better wind and take up the molybdenum wire for machine tools. The force is more uniform throughout the take-up process, and the molybdenum wire is wound more tightly on the take-up drum. There will be no loose wire phenomenon, which is more suitable for the take-up operation of molybdenum wire. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 For the present utility model Figure 1 Longitudinal sectional view of the upper and middle tracheal fossa;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of the middle and upper tracheal fossa.

[0022] In the diagram: 1. Take-up spool; 2. Drive shaft; 3. Mounting keyway; 4. First rotating support frame; 5. Second rotating support frame; 6. Central perforation; 7. Servo motor; 8. Drive rod; 9. Key pin; 10. Upper air pipe seat; 11. Lower air pipe seat; 12. Air pipe connector body; 13. Cylinder body; 14. Connecting air pipe; 15. Air inlet pipe connector; 16. Pipe mounting seat; 17. Fixing screw; 18. Spring seat; 19. Wire clamping spring; 20. Wire inlet guide tube; 21. Molybdenum wire body. Detailed Implementation

[0023] Please see Figure 1-4 ,

[0024] Example 1: An automatic wire take-up device for a wire cutting machine tool includes a take-up spool 1, two drive shafts 2 are symmetrically arranged at both ends of the take-up spool 1, and a mounting keyway 3 is provided on the side of each drive shaft 2. A first rotating support frame 4 is provided on one side of the take-up spool 1.

[0025] A second rotating support frame 5 is provided on the other side of the take-up drum 1. A central through hole 6 is provided in the middle of both the first rotating support frame 4 and the second rotating support frame 5. The end of the drive shaft 2 is rotatably inserted into the central through hole 6. A servo motor 7 is provided on the side of the second rotating support frame 5. A drive rod 8 is connected to the drive end of the servo motor 7. A key pin 9 is provided on the drive rod 8. The end of the drive shaft 2 passes through the central through hole 6 on the second rotating support frame 5 and is connected to the drive rod 8. The key pin 9 is inserted into the mounting keyway 3. An upper air pipe seat 10 is provided at the top of the take-up drum 1. A lower air pipe seat 11 is connected to the bottom end of the upper air pipe seat 10.

[0026] The take-up spool 1 is provided with an air pipe connector body 12, which is connected to the bottom end of the lower air pipe seat 11. The inner wall of the bottom of the take-up spool 1 is equipped with a cylinder body 13, which is connected to the air pipe connector body 12 through a connecting air pipe 14. The top of the upper air pipe seat 10 is connected with an air inlet connector 15. A pipe mounting seat 16 is fitted on the upper air pipe seat 10. The side of the pipe mounting seat 16 is connected to the second rotating support frame 5 through two fixing screws 17. The bottom of the take-up spool 1 is provided with a spring plate seat 18, and the side of the spring plate seat 18 is provided with a wire clamping spring plate 19. The bottom of the take-up spool 1 is provided with a wire inlet guide tube 20, through which a molybdenum wire body 21 passes.

[0027] Example 2: The difference between this example and Example 1 is that the second rotating support frame 5 and the first rotating support frame 4 are provided with limit rings on their sides.

[0028] This makes the take-up drum 1 rotate more stably under the drive of the servo motor 7.

[0029] Example 3: The difference between this example and Example 1 is that the bottom end of the cylinder body 13 passes through the take-up cylinder 1 and is connected to the spring plate seat 18 by a spring.

[0030] This allows the cylinder body 13 to better push and reset the spring holder 18.

[0031] Example 4: The difference between this example and Example 1 is that the end of the insertion catheter 20 is flat.

[0032] This allows the end of the wire insertion guide 20 to better insert into the inner wall of the wire clamping spring 19.

[0033] In this embodiment, the existing molybdenum wire take-up device for wire EDM machines still requires manual lifting of the molybdenum wire, threading it through the transmission wheel, and winding it onto the take-up spool for take-up. This take-up method makes it difficult to evenly wind the molybdenum wire. During the winding process, uneven tension of the molybdenum wire can easily cause the wire to be loosely wound on the take-up spool, resulting in loose wire and causing trouble for the subsequent use of the molybdenum wire.

[0034] In summary, in specific implementation, when the user needs to recycle and wind up the molybdenum wire used in the wire EDM machine, the user first needs to pass the end of the molybdenum wire body 21 through the middle of the wire guide tube 20, and then insert the end of the wire guide tube 20 into the wire clamping spring 19. At this time, by connecting high-pressure gas to the air inlet connector 15, the gas is injected into the cylinder body 13 through the connecting air pipe 14 connected to the air pipe connector body 12 and the cylinder body 13. The cylinder body 13 then abuts against the spring seat 18 outward, so that a gap appears between the spring seat 18 and the take-up spool 1, and the end of the molybdenum wire body 21 passing through the wire guide tube 20 is inserted into the gap. By disconnecting the air pressure, the cylinder body 13 tightens the spring seat 18 again through the spring, so that the end of the molybdenum wire body 21 inserted into the gap is firmly abutted by the spring seat 18.

[0035] The user then starts the servo motor 7, which is connected to the transmission shaft 2 via the transmission rod 8, driving the take-up drum 1 to rotate. This allows the molybdenum wire to be automatically wound and coiled under the rotation of the take-up drum 1, completing the take-up and storage of the molybdenum wire. The take-up process, driven by the servo motor 7, makes the entire force application process more uniform, and the molybdenum wire is wound more tightly on the take-up drum 1, without any loose wire, making it more suitable for molybdenum wire take-up operations.

Claims

1. An automatic wire take-up device for a wire EDM machine, characterized in that: Includes a take-up spool (1), with two drive shafts (2) symmetrically arranged at both ends of the take-up spool (1), and a mounting keyway (3) provided on the side of each drive shaft (2), and a first rotating support frame (4) provided on one side of the take-up spool (1); A second rotating support frame (5) is provided on the other side of the take-up spool (1). A central through hole (6) is provided in the middle of both the first rotating support frame (4) and the second rotating support frame (5). The end of the drive shaft (2) is rotatably inserted into the central through hole (6). A servo motor (7) is provided on the side of the second rotating support frame (5). A drive rod (8) is connected to the drive end of the servo motor (7). A key pin (9) is provided on the drive rod (8). The end of the drive shaft (2) passes through the central through hole (6) on the second rotating support frame (5) and is connected to the drive rod (8). The key pin (9) is inserted into the mounting keyway (3). An upper air pipe seat (10) is provided at the top of the take-up spool (1). A lower air pipe seat (11) is connected to the bottom end of the upper air pipe seat (10).

2. The automatic wire take-up device for a wire EDM machine according to claim 1, characterized in that: The take-up cylinder (1) is provided with an air pipe connector body (12), which is connected to the bottom end of the lower air pipe seat (11). A cylinder body (13) is installed on the inner wall of the bottom of the take-up cylinder (1). The cylinder body (13) and the air pipe connector body (12) are connected by a connecting air pipe (14). An air inlet connector (15) is connected to the top of the upper air pipe seat (10). A pipeline mounting seat (16) is sleeved on the upper air pipe seat (10). The side of the pipeline mounting seat (16) is connected to the second rotating support frame (5) by two fixing screws (17).

3. The automatic wire take-up device for a wire EDM machine tool according to claim 2, characterized in that: The bottom of the take-up spool (1) is provided with a spring plate seat (18), and the side of the spring plate seat (18) is provided with a wire clamping spring plate (19). The bottom of the take-up spool (1) is provided with a wire inlet guide (20), and a molybdenum wire body (21) passes through the wire inlet guide (20).

4. The automatic wire take-up device for a wire EDM machine tool according to claim 3, characterized in that: Limiting rings are provided on the sides of the second rotating support frame (5) and the first rotating support frame (4).

5. An automatic wire take-up device for a wire EDM machine according to claim 4, characterized in that: The bottom end of the cylinder body (13) passes through the take-up cylinder (1) and is connected to the spring plate seat (18) by a spring.

6. An automatic wire take-up device for a wire EDM machine according to claim 5, characterized in that: The end of the insertion catheter (20) is flat.

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