Reciprocating wire supply electric spark wire cutting machine

Abstract

The utility model relates to the technical field of wire cut electrical discharge machines, and discloses a reciprocating wire supply wire cut electrical discharge machine which comprises a machine table, a movable frame and an electrode wire, supporting legs are fixedly connected to the four corners of the top end of the machine table, and a water pool is formed in one end of the top of the machine table. According to the scheme, a first nut and a second nut are rotated to be close to each other so as to abut against the two sides of a fixing rod, so that a threaded column can be fixed, a movable block and a second driving assembly are indirectly fixed, and the movable block is prevented from driving the second driving assembly to horizontally move; then, electric sparks are generated in the process that the electrified wire electrode rotates to approach the electrified workpiece, so that the workpiece is cut by utilizing the electric sparks; compared with the prior art, the electric spark cutting device has the effect of rotating the electrode wire in a reciprocating manner, so that the situation that only one part of the electrode wire is close to the workpiece for electric spark cutting is avoided, and the utilization time of the electrode wire is longer.

Description

Technical Field

[0001] The present application relates to the technical field of electric spark wire cutting machines, and in particular to a reciprocating wire feeding electric spark wire cutting machine. Background Art

[0002] Wire EDM is one of the important tools for precision machining and is widely used in mold manufacturing, aerospace, electronics and other fields. However, when a traditional wire EDM supplies power to the electrode wire and the workpiece, and the electrode wire is close to the workpiece to generate sparks to cut the workpiece, if only one part of the electrode wire is close to the workpiece for spark cutting, it will inevitably break off from this place after a period of use, while other parts of the electrode wire are intact. This will cause the electrode wire to be unable to be used, resulting in a waste of the electrode wire and affecting the working efficiency of the wire EDM. Utility Model Content

[0003] In order to solve the above-mentioned problem that if only one part of the electrode wire is close to the workpiece for electric spark cutting, it will inevitably break after a period of use, while other parts of the electrode wire are intact, which will result in the electrode wire being unable to be used further, thereby causing waste of the electrode wire and affecting the working efficiency of the electric spark wire cutting machine, the present application provides a reciprocating wire feeding electric spark wire cutting machine.

[0004] The present application provides a reciprocating wire feeding electric spark wire cutting machine adopts the following technical solution:

[0005] A reciprocating wire-feeding electric spark wire cutting machine comprises a machine table, a movable frame and an electrode wire, the four corners of the top of the machine table are fixedly connected with legs, one end of the top of the machine table is provided with a water pool, the middle part of the bottom wall of the water pool is fixedly connected with a fixed column, the top of the fixed column is fixedly connected with a support table, the movable frame is located above the machine table, one end of the machine table is provided with a first driving component for driving the movable frame to move, the movable frame is staggered with the fixed column, the height of the support table is higher than the height of one end of the bottom of the movable frame, the top and bottom of one side of the movable frame are Guide wheels are installed on both sides, the electrode wire is wound inside the two guide wheels, a movable block is movably arranged on one side of the movable frame, a second driving component for driving the electrode wire to reciprocate is arranged on one side of the movable block, a movable rod is movably penetrated through the middle of the inner side wall of the movable frame, one end of the movable rod is fixedly connected to the other side of the movable block, the other end of the movable rod is fixedly connected to a threaded column, the bottom end of the inner side wall of the movable frame is fixedly connected to a fixed rod, the threaded column movably penetrates the fixed rod, and the outer surface of the fixed rod is threadedly sleeved with a first nut and a second nut;

[0006] The second driving assembly consists of a second motor and a driving wheel. The second motor is fixedly mounted on one side of the movable block. The power shaft of the second motor rotates through the movable block. The driving wheel is fixedly mounted on the end of the power shaft of the second motor. The electrode wire is wound inside the driving wheel.

[0007] Preferably, the first driving assembly consists of a fixed plate and a first motor, a cross limiting groove is opened on one side of the machine, one side of the fixed plate is fixedly connected to one side of the machine, the first motor is fixedly installed on the other side of the fixed plate, the power shaft of the first motor rotates and passes through the fixed plate, the inside of the cross limiting groove is slidably connected with a sliding block, the sliding block is fixedly connected to the bottom end of the movable frame, the end of the power shaft of the first motor is fixedly connected with a threaded rod, and the threaded rod threadably passes through the sliding block.

[0008] Preferably, a support plate is fixedly connected to one side of the support platform, and a bolt is threadedly penetrated at one end of the top of the support plate.

[0009] Preferably, a drain pipe with a manual valve is fixedly passed through one side of the machine, and the drain pipe is in communication with the water pool.

[0010] In summary, the present application includes the following beneficial technical effects: by pushing the movable rod to resist the movable block away from the movable frame, the movable block drives the second drive assembly away from the movable frame, at which time the second drive assembly can resist and tighten the electrode wire, thereby preventing the electrode wire from loosening and being unable to be driven by the second drive assembly to rotate, and then rotating the first nut and the second nut to approach each other and then resist the two sides of the fixed rod, thereby fixing the threaded column, and indirectly fixing the movable block and the second drive assembly, preventing the movable block from driving the second drive assembly to move horizontally, and allowing the second drive assembly to cooperate with the two guide wheels to tighten the electrode wire, and then the energized electrode wire will generate sparks in the process of rotating close to the energized workpiece, thereby using the sparks to cut the workpiece; compared with the prior art, it has the effect of reciprocating the electrode wire, so that the situation of only using one part of the electrode wire close to the workpiece for spark cutting will not occur, so that the electrode wire can be used for a longer time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application.

[0012] Figure 2 It is a side view structural schematic diagram of an application embodiment.

[0013] Figure 3 It is a schematic diagram of the partial structure disassembly of an embodiment of the application.

[0014] Explanation of the reference numerals in the accompanying drawings: 11. machine platform; 12. support leg; 13. water tank; 14. fixed column; 15. support platform; 21. movable frame; 22. guide wheel; 23. electrode wire; 24. movable block; 25. movable rod; 26. fixed rod; 27. threaded column; 28. first nut; 29. ​​second nut; 3. first drive assembly; 31. fixed plate; 32. first motor; 33. threaded rod; 34. sliding block; 4. second drive assembly; 41. second motor; 42. drive wheel; 51. support plate; 52. bolt; 6. drain pipe. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-3 This application is described in further detail.

[0016] The present application embodiment discloses a reciprocating wire feeding electric spark wire cutting machine, referring to Figure 1-3, including a machine table 11, a movable frame 21 and an electrode wire 23. The four corners of the top of the machine table 11 are fixedly connected with legs 12, and the four legs 12 can cooperate to support the machine table 11. A water pool 13 is provided at one end of the top of the machine table 11. A fixed column 14 is fixedly connected to the middle of the bottom wall of the water pool 13. A support table 15 is fixedly connected to the top of the fixed column 14. The support table 15 can be used to place the processed workpiece, and the water pool 13 can be used to store plasma water after cooling the workpiece. The movable frame 21 is located above the machine table 11. One end of the machine table 11 is provided with a first driving component 3 for driving the movable frame 21 to move. The first driving component 3 is composed of a fixed plate 31 and a first motor 32. A cross limit groove is provided on one side of the machine table 11. One side of the plate 31 is fixedly connected to one side of the machine table 11, and the first motor 32 is fixedly installed on the other side of the fixed plate 31. The fixed plate 31 can support the first motor 32. The power shaft of the first motor 32 rotates and penetrates the fixed plate 31. The sliding block 34 is slidably connected inside the cross limit groove. The sliding block 34 is fixedly connected to the bottom end of the movable frame 21. The sliding block 34 can drive the movable frame 21 to slide along a straight line during the sliding process. The end of the power shaft of the first motor 32 is fixedly connected to a threaded rod 33. The threaded rod 33 threads through the sliding block 34. The movable frame 21 is misaligned with the fixed column 14, so that the movable frame 21 will not touch the fixed column 14. The power shaft of the first motor 32 drives the threaded rod 33 to rotate, and the threaded rod 33 is During the rotation process, a spiral thrust is applied to the sliding block 34, so that the sliding block 34 can drive the movable frame 21 to approach the fixed column 14, and the height of the support platform 15 is higher than the height of the bottom end of the movable frame 21, so that the bottom end of the movable frame 21 can be prevented from touching the support platform 15. Guide wheels 22 are installed at the top and bottom ends of one side of the movable frame 21. The electrode wire 23 is wound inside the two guide wheels 22. The two guide wheels 22 can guide the electrode wire 23. A movable block 24 is movably provided on one side of the movable frame 21. A second driving component 4 for driving the electrode wire 23 to reciprocate is provided on one side of the movable block 24. The second driving component 4 is composed of a second motor 41 and a driving wheel 42. The second motor 41 is fixedly installed on the movable block 24. On one side, the movable block 24 can support the second motor 41, the power shaft of the second motor 41 rotates and passes through the movable block 24, the driving wheel 42 is fixedly installed at the end of the power shaft of the second motor 41, the electrode wire 23 is wound inside the driving wheel 42, and the power shaft of the second motor 41 drives the driving wheel 42 to rotate, and the driving wheel 42 can drive the electrode wire 23 to rotate reciprocatingly during the rotation process. A movable rod 25 movably passes through the middle of the inner wall of the movable frame 21, one end of the movable rod 25 is fixedly connected to the other side of the movable block 24, the movable rod 25 can support the movable block 24, and the other end of the movable rod 25 is fixedly connected to a threaded column 27, and the bottom end of the inner wall of the movable frame 21 is fixedly connected to a fixed rod 26, and the threaded column 27 movably passes through the fixed rod 26.When the movable rod 25 is pushed to contact the movable block 24 away from the movable frame 21, the movable block 24 drives the second motor 41 and the driving wheel 42 to move away from the movable frame 21. At this time, the driving wheel 42 can contact and tighten the electrode wire 23, thereby preventing the electrode wire 23 from loosening and being unable to be driven by the driving wheel 42 to rotate. The outer surface of the threaded column 27 is threadedly sleeved with a first nut 28 and a second nut 29. The first nut 28 and the second nut 29 are rotated to approach each other and contact the two sides of the fixing rod 26, so that the threaded column 27 can be fixed, and the movable block 24 can be fixed indirectly. Then, in the movable frame 2 1 drives the movable block 24 to approach the workpiece placed on the support table 15, and the driving wheel 42 drives the electrode wire 23 to rotate, and then one end of the wire connected to the positive electrode of the external power supply contacts the electrode wire 23, and the other end of the wire connected to the negative electrode of the external power supply contacts the workpiece. When the electrode wire 23 approaches the workpiece, electric sparks are generated, and the workpiece is cut by the electric sparks. During the cutting process, the plasma water in the external water tank can be pumped out by the external water pump and dripped to the area after the workpiece is cut through the water pipe, so that it can be cooled, and the used plasma water will eventually flow into the water pool 13.

[0017] Reference Figure 1 A support plate 51 is fixedly connected to one side of the support platform 15, and a bolt 52 is threaded through one end of the top of the support plate 51. The bolt 52 is rotated to descend and contact the workpiece placed on the support platform 15, so that the workpiece can be fixed to prevent it from moving during cutting.

[0018] Reference Figure 1 and Figure 2 A drain pipe 6 with a manual valve is fixedly passed through one side of the machine 11, and the drain pipe 6 is in communication with the pool 13. The used plasma water in the pool 13 can be discharged by opening the valve of the drain pipe 6.

[0019] The implementation principle of a reciprocating wire-feeding electric spark wire cutting machine according to an embodiment of the present application is as follows: when in use, the electrode wire 23 is sleeved between two guide wheels 22 and a driving wheel 42, and then the movable rod 25 is pushed to contact the movable block 24 away from the movable frame 21, and the movable block 24 drives the second motor 41 and the driving wheel 42 away from the movable frame 21. At this time, the driving wheel 42 can contact and tighten the electrode wire 23, thereby preventing the electrode wire 23 from loosening and being unable to be driven by the driving wheel 42 to rotate, and then the first nut 28 and the second nut 29 are rotated to approach each other and contact the two sides of the fixing rod 26, so that the threaded column 27 can be fixed, and the movable block 24 can be fixed indirectly, and then one end of the wire connected to the positive pole of the external power supply is brought into contact with the electrode wire 23, and the other end of the wire connected to the negative pole of the external power supply is brought into contact with the electrode wire 23. The end contacts the workpiece, and the second motor 41 and the first motor 32 are started. The power shaft of the first motor 32 drives the threaded rod 33 to rotate. The threaded rod 33 applies a spiral thrust to the sliding block 34 during the rotation, so that the sliding block 34 can drive the movable frame 21 to approach the fixed column 14, and the power shaft of the second motor 41 drives the driving wheel 42 to rotate. The driving wheel 42 can drive the electrode wire 23 to rotate reciprocatingly during the rotation. In the process of the electrode wire 23 approaching the workpiece, electric sparks are generated, so that the workpiece is cut by the electric sparks. During the cutting process, the plasma water in the external water tank can be pumped out by an external water pump and dripped to the area after the workpiece is cut through the water pipe, so that it can be cooled. The used plasma water will eventually flow into the water pool 13.

[0020] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0021] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0022] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0023] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A reciprocating wire feed electric spark wire cutting machine, comprising a machine table (11), a movable frame (21) and an electrode wire (23), characterized in that: The four corners of the top of the machine platform (11) are fixedly connected to supporting legs (12); a water pool (13) is provided at one end of the top of the machine platform (11); a fixed column (14) is fixedly connected to the middle of the bottom wall of the water pool (13); a support platform (15) is fixedly connected to the top of the fixed column (14); the movable frame (21) is located above the machine platform (11); a first driving component (3) for driving the movable frame (21) to move is provided at one end of the machine platform (11); the movable frame (21) is offset from the fixed column (14); the height of the support platform (15) is higher than the height of one end of the bottom of the movable frame (21); guide wheels (22) are installed at the top and bottom of one side of the movable frame (21); the electrode wire (2 3) wound inside the two guide wheels (22), a movable block (24) is movably provided on one side of the movable frame (21), a second driving component (4) for driving the electrode wire (23) to reciprocate is provided on one side of the movable block (24), a movable rod (25) is movably penetrated through the middle of the inner wall of the movable frame (21), one end of the movable rod (25) is fixedly connected to the other side of the movable block (24), the other end of the movable rod (25) is fixedly connected to a threaded column (27), a fixed rod (26) is fixedly connected to the bottom end of the inner wall of the movable frame (21), the threaded column (27) movably penetrates the fixed rod (26), and the outer surface of the fixed rod (26) is threadedly sleeved with a first nut (28) and a second nut (29); The second driving assembly (4) is composed of a second motor (41) and a driving wheel (42); the second motor (41) is fixedly mounted on one side of the movable block (24); a power shaft of the second motor (41) rotates through the movable block (24); the driving wheel (42) is fixedly mounted on the end of the power shaft of the second motor (41); and the electrode wire (23) is wound around the inside of the driving wheel (42).

2. A reciprocating wire feed electric spark wire cutting machine according to claim 1, characterized in that: The first driving assembly (3) is composed of a fixed plate (31) and a first motor (32); a cross limiting groove is provided on one side of the machine platform (11); one side of the fixed plate (31) is fixedly connected to one side of the machine platform (11); the first motor (32) is fixedly mounted on the other side of the fixed plate (31); a power shaft of the first motor (32) rotates through the fixed plate (31); a sliding block (34) is slidably connected inside the cross limiting groove; the sliding block (34) is fixedly connected to the bottom end of the movable frame (21); a threaded rod (33) is fixedly connected to the end of the power shaft of the first motor (32); the threaded rod (33) threadably passes through the sliding block (34).

3. A reciprocating wire feed electric spark wire cutting machine according to claim 1, characterized in that: A support plate (51) is fixedly connected to one side of the support platform (15), and a bolt (52) is threadedly penetrated at one end of the top of the support plate (51).

4. A reciprocating wire feed electric spark wire cutting machine according to claim 1, characterized in that: A drainage pipe (6) with a manual valve is fixedly passed through one side of the machine (11), and the drainage pipe (6) is in a communicating state with the water pool (13).

Images