A high-speed wire-cut electrical discharge machine provided with a wire storage mechanism

Abstract

The utility model discloses a high -speed spark -discharge wire cutting device with wire storage mechanism is provided in the electric spark wire cutting technical field, including the first wire storage cylinder and second wire storage cylinder of vertical setting in the wire storage box. The high -speed spark -discharge wire cutting device with wire storage mechanism, through the first wire storage cylinder and second wire storage cylinder of vertical arrangement, cooperate the sliding block of sliding setting, realize the conductive wire on the first wire storage cylinder after cutting section and set up to second wire storage cylinder, thereby realize single -layer wire storage, and the sum of the conductive wire length between first fixed pulley and first movable pulley and the conductive wire length between second fixed pulley and second movable pulley remain unchanged in the moving process of moving block, thereby realized the conductive wire moving stability, compared with existing device, avoided the problem that the wire speed changed when the electrode wire was arranged in the laminated arrangement on the wire cylinder, improved wire cutting stability.

Description

Technical Field

[0001] This utility model belongs to the field of wire electrical discharge machining technology, and in particular relates to a high-speed wire electrical discharge machining device equipped with a wire storage mechanism. Background Technology

[0002] Wire EDM machines can be classified into three categories according to their wire feed speed: high-speed reciprocating wire EDM machines, low-speed unidirectional wire EDM machines, and vertical self-rotating wire EDM machines. The high-speed reciprocating wire EDM machine, with a wire feed speed of 6–12 mm / s, is a unique machine type developed in my country. It was first developed in September 1970 by the state-owned Changfeng Machinery Plant under the Third Ministry of Machine Building, as a "digital program automatic control wire EDM machine tool," marking the first of its kind in China.

[0003] Wire EDM machines use molybdenum wire or hard brass wire as electrode wire. Existing high-speed wire EDM devices are not stable enough. When the electrode wires are stacked on the wire drum, their linear velocity changes. In order to ensure the wire wires are tightened, the speed of the motor driving the wire drum needs to be adjusted. This process is complex, unstable, and prone to wire breakage.

[0004] To address this issue, we propose a high-speed wire EDM device equipped with a wire storage mechanism. Utility Model Content

[0005] The purpose of this invention is to solve the problem of layered arrangement in the prior art, and to propose a high-speed electrical discharge wire cutting device with a wire storage mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-speed wire EDM device with a wire storage mechanism includes a first wire storage drum and a second wire storage drum vertically arranged in a wire storage box. The wire storage box is provided with a first driving component that drives the first wire storage drum and the second wire storage drum to rotate synchronously. A sliding block located on one side between the first wire storage drum and the second wire storage drum is provided inside the wire storage box. A second driving component is provided inside the wire storage box that drives the sliding block to move up and down. A first movable pulley that cooperates with the first wire storage drum is rotatably arranged on one side of the sliding block, and a second movable pulley that cooperates with the second wire storage drum is rotatably arranged on the other side of the sliding block. A first fixed pulley is fixedly installed on the inner wall of the wire storage box above the first movable pulley, and a second fixed pulley is fixedly installed on the inner wall of the wire storage box below the second movable pulley.

[0008] It also includes a conductive wire, one end of which is wound around the first fixed pulley and the first movable pulley in sequence and is fixedly wound around the lower part of the first wire storage cylinder, and the other end of which is wound around the second fixed pulley and the second movable pulley in sequence and is fixedly wound around the upper part of the second wire storage cylinder.

[0009] Preferably, a first synchronous pulley is fixedly sleeved at one end of the rotation shaft of the first and second wire storage drums, and a first synchronous belt is sleeved between the two first synchronous pulleys. The first drive assembly includes a motor fixedly installed in the wire storage box to drive the first wire storage drum to rotate.

[0010] Preferably, the second drive assembly includes a mounting bracket fixedly installed inside the wire storage box, a lead screw rotatably disposed inside the mounting bracket, and a sliding block threaded onto the lead screw, and a transmission assembly cooperating with the first wire storage cylinder is provided at the top of the lead screw.

[0011] Preferably, one end of the lead screw extends through to the outside of the mounting frame, and the transmission assembly includes a second synchronous pulley fixedly sleeved on the end of the lead screw and the rotating shaft of the first wire storage drum, and a second synchronous belt is fixedly sleeved between the two second synchronous pulleys.

[0012] Preferably, the mounting bracket has grooves on its two inner sidewalls, and the sliding block extends into the grooves on both sides.

[0013] Preferably, the number of the first movable pulleys is 2, and the two first movable pulleys are arranged horizontally on the side of the sliding block.

[0014] Preferably, photoelectric switch assemblies with matching sliding blocks are fixedly installed on both the upper and lower parts of the inner side of the wire storage box.

[0015] In summary, the technical effects and advantages of this utility model are as follows: This high-speed EDM wire cutting device with a wire storage mechanism, through the vertically arranged first and second wire storage drums and the sliding block, enables the conductive wire on the first wire storage drum to be wound onto the second wire storage drum after passing through the cutting section, thereby achieving single-layer wire storage. At the same time, during the movement of the moving block, the sum of the conductive wire lengths between the first fixed pulley and the first movable pulley and between the second fixed pulley and the second movable pulley remains unchanged, thereby achieving the stability of the conductive wire movement. Compared with existing devices, it avoids the problem of the linear velocity changing when the electrode wire is stacked on the wire drum, thus improving the stability of wire cutting. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the wire storage box in this utility model;

[0018] Figure 3 for Figure 2 Another structural diagram from a different angle;

[0019] Figure 4 This is a cross-sectional front view of the present invention.

[0020] In the diagram: 1. Wire storage box; 2. First wire storage drum; 3. Second wire storage drum; 4. Sliding block; 5. First movable pulley; 6. Second movable pulley; 7. First fixed pulley; 8. Second fixed pulley; 9. Conductive wire; 10. First synchronous pulley; 11. First synchronous belt; 12. Motor; 13. Mounting bracket; 14. Lead screw; 15. Second synchronous pulley; 16. Second synchronous belt; 17. Slide groove; 18. Photoelectric switch assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3 A high-speed electrical discharge wire cutting device with a wire storage mechanism includes a first wire storage cylinder 2 and a second wire storage cylinder 3 vertically arranged in a wire storage box 1. The wire storage box 1 is provided with a first driving component that drives the first wire storage cylinder 2 and the second wire storage cylinder 3 to rotate synchronously. A sliding block 4 located on one side between the first wire storage cylinder 2 and the second wire storage cylinder 3 is provided inside the wire storage box 1 for vertical movement. A second driving component is provided inside the wire storage box 1 for vertical movement of the sliding block 4. A first movable pulley 5 that cooperates with the first wire storage cylinder 2 is rotatably arranged on one side of the sliding block 4, and a second movable pulley 6 that cooperates with the second wire storage cylinder 3 is rotatably arranged on the other side of the sliding block 4. A first fixed pulley 7 is fixedly installed on the inner wall of the wire storage box 1 above the first movable pulley 5, and a second fixed pulley 8 is fixedly installed on the inner wall of the wire storage box 1 below the second movable pulley 6.

[0023] It also includes a conductive wire 9, one end of which is wound around the first fixed pulley 7 and the first movable pulley 5 and fixedly wound around the lower part of the first wire storage drum 2, and the other end of which is wound around the second fixed pulley 8 and the second movable pulley 6 and fixedly wound around the upper part of the second wire storage drum 3.

[0024] It should also include a tensioning component and a conductive component. Both the tensioning component and the conductive component are existing technologies, including adjustable and movable adjustment pulleys. Before cutting, the conductive wire 9 is tensioned by adjusting the pulleys to improve the stability of subsequent cutting. The above-mentioned tensioning component and conductive component are common in the field of wire EDM, and will not be described in detail.

[0025] Reference Figure 1-3This high-speed EDM wire cutting device, equipped with a wire storage mechanism, tensions the conductive wire 9 via a tensioning component before use. The conductive component then applies a pulse current to the conductive wire 9 in the cutting section, initiating the cutting process. During cutting, the first and second drive components are activated. The first drive component drives the first wire storage drum 2 and the second wire storage drum 3 to rotate synchronously, while the second drive component drives the sliding block 4 to move downwards. The conductive wire 9, wound on the first wire storage drum 2, first passes through the first movable pulley 5 and the first pulley, then through the conductive component for cutting, and finally passes through the second fixed pulley 8 and the second movable pulley 6 before winding onto the second wire storage drum 3.

[0026] When the sliding block 4 moves to the bottom of its stroke, the first drive component drives the first wire storage drum 2 and the second wire storage drum 3 to rotate synchronously in the opposite direction. At the same time, the second drive component drives the sliding block 4 to move upward. The conductive wire 9, which is wound on the second wire storage drum 3, passes through the first fixed pulley 7 and the first movable pulley 5 and is rewound on the first wire storage drum 2, thus completing the high-speed electrical discharge wire cutting cycle.

[0027] Reference Figure 1-3 A first synchronous pulley 10 is fixedly sleeved at one end of the rotating shaft of the first wire storage drum 2 and the second wire storage drum 3. A first synchronous belt 11 is sleeved between the two first synchronous pulleys 10. The first drive assembly includes a motor 12 fixedly installed inside the wire storage box 1 to drive the first wire storage drum 2 to rotate. The first drive assembly drives the first wire storage drum 2 to rotate through the motor 12, which in turn drives the second wire storage drum 3 to rotate synchronously with the first synchronous pulleys 10 and the first synchronous belt 11. It should be noted that the first wire storage drum 2 and the second wire storage drum 3 have the same diameter, and the two first synchronous belts 11 have the same diameter, so as to ensure that the first wire storage drum 2 and the second wire storage drum 3 rotate at the same speed, thereby ensuring that the tension of the conductive wire 9 is always equal.

[0028] The second drive assembly includes a mounting bracket 13 fixedly installed inside the wire storage box 1. A lead screw 14 is rotatably mounted inside the mounting bracket 13, and a sliding block 4 is threaded onto the lead screw 14. The top end of the lead screw 14 is provided with a transmission assembly that cooperates with the first wire storage cylinder 2. The second drive assembly drives the lead screw 14 to rotate through the transmission assembly, thereby enabling the sliding block 4 to slide up and down within the mounting bracket 13.

[0029] Reference Figure 1-3 One end of the lead screw 14 extends through to the outside of the mounting bracket 13. The transmission assembly includes a second synchronous pulley 15 fixedly sleeved on the end of the lead screw 14 and the rotating shaft of the first wire storage drum 2. A second synchronous belt 16 is fixedly sleeved between the two second synchronous pulleys 15. This transmission assembly achieves synchronous rotation of the lead screw 14 and the first wire storage drum 2 through the cooperation of the second synchronous pulleys 15 and the second synchronous belt 16.

[0030] It is important to note that the moving speed of the sliding block 4 should be coordinated with the winding of the conductive wire 9 on the first wire storage drum 2 to ensure that the conductive wire 9 between the first wire storage drum 2 and the first movable pulley 5 remains horizontal, thereby ensuring the stability of the conductive wire 9. In actual production, one end of the conductive wire 9 is first fixed to the bottom side of the first wire storage drum 2. Then, the motor 12 is turned on to rotate the first wire storage drum 2, while the lead screw 14 moves the sliding block 4 upwards until it reaches its highest point. At this point, the other end of the conductive wire 9 is fixed and wound around the top side of the second wire storage drum 3, thus completing the winding of the conductive wire 9. This winding method ensures that the conductive wire 9 between the first wire storage drum 2 and the first movable pulley 5 remains horizontal, improving the stability of the conductive wire 9.

[0031] Reference Figure 3 The mounting bracket 13 has two inner sidewalls with grooves 17, and the sliding block 4 extends into the grooves 17 on both sides, thereby providing a limit for the movement of the sliding block 4 and improving the stability of the sliding block 4 moving up and down.

[0032] There are two first movable pulleys 5, and the two first movable pulleys 5 are arranged horizontally on the side of the sliding block 4. Compared with a single first movable pulley 5, the two horizontally arranged first movable pulleys 5 can improve the stability of the conductive wire 9 when moving and turning, thereby improving the cutting effect.

[0033] Reference Figure 4 The upper and lower parts of the inner side of the wire storage box 1 are fixedly installed with photoelectric switch assemblies 18 that cooperate with the sliding block 4. The photoelectric switch assembly 18 is existing technology and includes an output end and a receiving end. The output end outputs a light signal, and the receiving end receives the light signal to realize the limit switch function. When the sliding block 4 is at the top of the stroke, the sliding block 4 blocks the light signal emitted by the upper photoelectric switch assembly 18, thereby driving the motor 12 to rotate forward and move the sliding block 4 downward. When the sliding block 4 is at the bottom of the stroke, the sliding block 4 blocks the light signal emitted by the lower photoelectric switch assembly 18, thereby driving the motor 12 to rotate in reverse and move the sliding block 4 upward, thereby realizing the forward and reverse signal control of the motor 12.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-speed electrical discharge wire cutting device equipped with a wire storage mechanism, comprising a first wire storage drum (2) and a second wire storage drum (3) vertically disposed within a wire storage box (1), characterized in that, The wire storage box (1) is provided with a first driving component that drives the first wire storage cylinder (2) and the second wire storage cylinder (3) to rotate synchronously. The wire storage box (1) is provided with a sliding block (4) located on one side between the first wire storage cylinder (2) and the second wire storage cylinder (3) and can move up and down. The wire storage box (1) is provided with a second driving component that drives the sliding block (4) to move up and down. A first movable pulley (5) that cooperates with the first wire storage cylinder (2) is rotatably provided on one side of the sliding block (4). A second movable pulley (6) that cooperates with the second wire storage cylinder (3) is rotatably provided on the other side of the sliding block (4). A first fixed pulley (7) is fixedly installed on the inner wall of the wire storage box (1) above the first movable pulley (5). A second fixed pulley (8) is fixedly installed on the inner wall of the wire storage box (1) below the second movable pulley (6). It also includes a conductive wire (9), one end of which is wound around the first fixed pulley (7) and the first movable pulley (5) in sequence and is fixedly wound around the lower part of the first wire storage cylinder (2), and the other end of which is wound around the second fixed pulley (8) and the second movable pulley (6) in sequence and is fixedly wound around the upper part of the second wire storage cylinder (3).

2. A high-speed wire EDM device with a wire storage mechanism according to claim 1, characterized in that, The first wire storage drum (2) and the second wire storage drum (3) are fixedly fitted with a first synchronous pulley (10) at one end of their rotating shafts. A first synchronous belt (11) is fitted between the two first synchronous pulleys (10). The first drive assembly includes a motor (12) fixedly installed in the wire storage box (1) to drive the first wire storage drum (2) to rotate.

3. A high-speed wire EDM device with a wire storage mechanism according to claim 2, characterized in that, The second drive assembly includes a mounting bracket (13) fixedly installed in the wire storage box (1), a lead screw (14) is rotatably arranged in the mounting bracket (13), and the sliding block (4) is threaded on the lead screw (14). The top end of the lead screw (14) is provided with a transmission assembly that cooperates with the first wire storage cylinder (2).

4. A high-speed wire EDM device with a wire storage mechanism according to claim 3, characterized in that, One end of the lead screw (14) extends through to the outside of the mounting bracket (13). The transmission assembly includes a second synchronous pulley (15) fixedly sleeved on the end of the lead screw (14) and the rotating shaft of the first wire storage drum (2). A second synchronous belt (16) is fixedly sleeved between the two second synchronous pulleys (15).

5. A high-speed wire EDM device with a wire storage mechanism according to claim 3, characterized in that, The mounting bracket (13) has grooves (17) on its two inner side walls, and the sliding block (4) extends into the grooves (17) on both sides.

6. A high-speed wire EDM device with a wire storage mechanism according to claim 1, characterized in that, The number of the first movable pulleys (5) is 2, and the two first movable pulleys (5) are arranged horizontally on the side of the sliding block (4).

7. A high-speed wire EDM device with a wire storage mechanism according to claim 1, characterized in that, The upper and lower parts of the inner side of the wire storage box (1) are fixedly installed with photoelectric switch components (18) that cooperate with the sliding block (4).

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