Mould machining electric spark machine

Abstract

The utility model discloses a mould machining electric discharge machine which comprises a base, a back plate is fixedly connected to the rear end of the top of the base, a top plate is fixedly connected to the front end of the back plate, roller frames penetrate through the centers of the outer walls of the two sides of the top plate, sliding grooves are formed in the two sides of the inner wall of a blocking shell, and one ends of the outer walls of the roller frames are slidably connected with the inner walls of the sliding grooves. A containing frame is fixedly connected to the center of the top of the base, an electric spark machining head capable of sliding up and down is installed over the containing frame, splash can be blocked by arranging a blocking shell, a worker can lift the blocking shell only manually, in the process, the time of the worker is saved, meanwhile, the mold machining cost is reduced, and the machining efficiency is improved. By arranging a connecting structure between the roller frame and the sliding groove, the blocking shell can move up and down more smoothly, so that the situation of blocking is avoided, and by arranging the tempered glass plate, a worker can conveniently observe the machining situation of a mold in the electric discharge machine.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to an electric discharge machine for mold processing. Background Art

[0002] An electric discharge machine is an important mechanical processing equipment, which is widely used in the manufacturing of various metal molds and mechanical equipment. It uses the electro-erosion effect generated by pulsed discharge between two electrodes immersed in the working fluid to erode conductive materials, thereby realizing special processing. The working principle of the electric discharge machine is based on the discharge of high-voltage electronic pulses. When a high-voltage arc is pulled up between the tool electrode and the workpiece electrode, and the tool electrode is fed towards the workpiece through the gap automatic control system. When the gap between the two electrodes reaches a certain distance, the pulsed voltage breaks down the working fluid, generating a spark discharge. In the fine channels of the discharge, a large amount of heat energy is instantaneously concentrated, causing the local micro amount of metal material on the workpiece surface to melt, vaporize, and be carried away by the working fluid, thereby leaving tiny pit marks on the workpiece surface. Through continuous pulsed discharges and the feeding of the tool electrode, the machining of the workpiece shape is ultimately realized.

[0003] In most existing electric discharge machines for mold processing, the position of the machine head is fixed. When it is necessary to perform positioning processing on different parts of the mold, it is required for the staff to manually adjust the position of the mold, resulting in low work efficiency and certain danger. Based on these problems, Chinese Patent CN215545567U discloses an electric discharge machine for mold processing. By setting an electric push rod, a second motor, and a first motor, the mold is placed on the workbench, the electric push rod is started to drive the fixture to fix the mold, the second motor is started to rotate, the second motor rotation further drives the first threaded rod to rotate, the first threaded rod rotation further drives the first nut block to slide in the first chute, further drives the support plate, the slide rail, and the electric discharge machining head to move on the machine tool, further adjusts the machining position of the electric discharge machining head, then the first motor is started to rotate, the first motor rotation further drives the third threaded rod to rotate, the third threaded rod rotation further drives the second nut block to slide in the second chute, further drives the electric discharge machining head to move vertically on the mold, and further positions the machining position, which can effectively adjust the position of the machining head without manual adjustment by the staff, improving the work efficiency.

[0004] During the use of this electric discharge machine, it is necessary to utilize the rotation of the third motor and the second threaded rod to lift and lower the anti-spatter baffle. This process not only wastes the time of the staff, but also increases the mold processing cost, seriously affecting the use efficiency of this electric discharge machine. Summary of the Utility Model

[0005] The purpose of this section is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract of the specification and the name of the utility model of this application, to avoid obscuring the purpose of this section, the abstract of the specification, and the name of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the present utility model.

[0006] To solve the above problems, the present utility model adopts the following technical solutions.

[0007] A die - processing electric - discharge machine includes a base. At the rear end of the top of the base, a back plate is fixedly connected. At the front end of the back plate, a top plate is fixedly connected. A shielding shell is slidably connected to the outer wall of the top plate. On one side of the front end of the shielding shell, a tempered glass plate penetrates through, and on the other side of the front end of the shielding shell, a dust - proof ventilation net penetrates through. At the center of both outer walls of the two sides of the top plate, roller frames penetrate through. On both inner walls of the shielding shell, sliding grooves are provided, and one ends of the outer walls of the roller frames are slidably connected to the inner walls of the sliding grooves. At the center of the top of the base, a placement frame is fixedly connected, and directly above the placement frame, an electric - discharge machining head capable of sliding up and down is installed.

[0008] As a further description of the above - mentioned technical solution:

[0009] At the center of the front end of the base, a cavity is provided. At the front end of the inner wall of the cavity, a baffle is fixedly connected. At the center of the front end of the baffle, a forward - and - reverse motor penetrates through. The movable end of the forward - and - reverse motor is rotatably connected to an inclined - surface gear body. The inclined - surface convex block of the inclined - surface gear body meshes with an inclined - surface gear ring. The inner wall of the inclined - surface gear ring is fixedly connected with a shaft rod. Both end faces of the shaft rod are rotatably connected to rotating shafts, and the opposite faces of the rotating shafts are fixedly connected to both sides of the inner wall of the cavity.

[0010] As a further description of the above - mentioned technical solution:

[0011] At both ends of the outer wall of the shaft rod, gear rings are fixedly connected. At the center of both sides of the inner wall of the placement frame, shaft rings penetrate through. The inner walls of the shaft rings are rotatably connected to shaft cores. On the opposite faces of the shaft cores, gear bodies are fixedly connected. The outer walls of the gear bodies and the outer walls of the gear rings are both engaged with a gear belt. On the opposite faces of the shaft cores, threaded rods are fixedly connected. Threaded sleeves are in threaded transmission connection with the outer walls of the threaded rods. On the outer walls of the threaded sleeves, movable plates are fixedly connected. At the bottom of the movable plates, U - shaped plates are fixedly connected. At both bottom ends of both sides of the inner wall of the placement frame, sliding strips are fixedly connected. The inner walls of the U - shaped plates are slidably connected to the outer walls of the sliding strips. On the opposite faces of the movable plates, clamping blocks are fixedly connected.

[0012] As a further description of the above - mentioned technical solution:

[0013] At the center of the top of the top plate, there is a backing plate vertically penetrating through it. At both ends of the backing plate, there are columns vertically penetrating through it. In the columns, there are sliding cavities penetrating up and down. At the bottom ends of the inner walls of the sliding cavities, there are sliding rods slidably connected. At the top ends of the outer walls of the sliding rods, there are reset springs sleeved. At the tops of the sliding rods, there are top blocks fixedly connected. On the opposite faces of the top blocks, there are pull rods fixedly connected.

[0014] As a further description of the above technical solution:

[0015] At the bottom of the sliding rod, there is a connector fixedly connected. At the top of the connector, there is an electric discharge machining head fixedly connected. At the center of the top of the connector, there is a wire fixedly connected. One end of the outer wall of the wire penetrates through the center of the bottom of the backing plate.

[0016] As a further description of the above technical solution:

[0017] On one side of the rear end of the back plate, there is a placement plate fixedly connected. At the center of the top of the placement plate, there is a working fluid tank installed. At the top of the working fluid tank, there is a tank cover installed. The other end of the outer wall of the wire vertically penetrates through the center of the top of the tank cover.

[0018] As a further description of the above technical solution:

[0019] On the other side of the rear end of the back plate, there is a support plate penetrating through it. In the support plate, there are multiple air inlet fans penetrating through it.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] (1) By setting the baffle shell, the splashes can be blocked. The staff can manually lift and lower the baffle shell. This process not only saves the time of the staff, but also reduces the mold processing cost. By setting the connection structure between the roller frame and the chute, the up and down movement of the baffle shell can be made smoother, thus avoiding the occurrence of jams. By setting the toughened glass plate, it is convenient for the staff to observe the processing situation of the mold inside the electric discharge machine.

[0022] (2) When the forward and reverse motor drives the bevel gear body to rotate, the shaft rod on the inner wall of the bevel gear ring will also rotate together. At the same time, the two gear rings will rotate in the same direction at the same speed. By using the gear belt, the gear ring and the gear body can be connected. When the gear ring rotates, the gear body will rotate together. At the same time, the two shaft cores and the threaded rods will also rotate together. At this time, the two clamping blocks will approach or move away from each other. When the two clamping blocks approach each other, the workpiece placed in the placement frame can be fixed. By setting the simple connection method between the working fluid tank and the placement plate, the disassembly and assembly steps of the working fluid tank are more convenient and fast. At the same time, it is also convenient to replace the working fluid inside the working fluid tank. By setting the air inlet fan, the outside air can be introduced into the electric discharge machine, so as to cool the workpiece. Description of the Drawings

[0023] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0024] Figure 2 is the second structural schematic diagram of the present utility model;

[0025] Figure 3 is the front view of the present utility model;

[0026] Figure 4 is the front sectional view of the present utility model;

[0027] Figure 5 is the rear view of the present utility model;

[0028] Figure 6 of the present utility model Figure 4 is the partial enlarged view of area A in;

[0029] Figure 7 of the present utility model Figure 4 is the partial enlarged view of area B in.

[0030] The corresponding relationship between the reference numerals and the component names in the drawings is as follows:

[0031] 1. Base; 2. Back panel; 3. Top panel; 4. Baffle shell; 5. Tempered glass plate; 6. Dust-proof ventilation net; 7. Roller frame; 8. Slide groove; 9. Placement frame; 10. Cavity; 11. Baffle; 12. Forward and reverse motor; 13. Bevel gear body; 14. Bevel gear ring; 15. Shaft rod; 16. Rotating shaft; 17. Gear ring; 18. Shaft collar; 19. Shaft core; 20. Gear body; 21. Gear belt; 22. Threaded rod; 23. Threaded sleeve; 24. Movable plate; 25. U-shaped plate; 26. Slide bar; 27. Clamping block; 28. Pad; 29. Cylinder; 30. Slide cavity; 31. Slide rod; 32. Return spring; 33. Top block; 34. Pull rod; 35. Connector; 36. Electro-discharge machining head; 37. Wire; 38. Placement plate; 39. Working fluid tank; 40. Tank cover; 41. Support plate; 42. Air inlet fan. Detailed Description of the Preferred Embodiments

[0032] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings in the specification.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Persons skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0035] Referring to Figures 1-7 , an embodiment provided by the present utility model: A die - processing electric discharge machine, comprising a base 1. A back plate 2 is fixedly connected to the rear end of the top of the base 1. A top plate 3 is fixedly connected to the front end of the back plate 2. A shielding case 4 is slidably connected to the outer wall of the top plate 3. By providing the shielding case 4, spatter can be blocked. A tempered glass plate 5 penetrates through one side of the front end of the shielding case 4. By providing the tempered glass plate 5, it is convenient for the staff to observe the processing condition of the die inside the electric discharge machine. A dust - proof ventilation net 6 penetrates through the other side of the front end of the shielding case 4. By providing the dust - proof ventilation net 6, a heat - dissipation effect can be achieved. Roller frames 7 penetrate through the centers of the outer walls on both sides of the top plate 3. Sliding grooves 8 are formed on both sides of the inner wall of the shielding case 4. One ends of the outer walls of the roller frames 7 are slidably connected to the inner walls of the sliding grooves 8. The roller frames 7 are composed of rollers and frames. Roller grooves are formed on the opposite surfaces of the frames. The rollers are all installed in the roller grooves. The rollers can rotate in the roller grooves. The extending ends of the rollers are all arranged in the sliding grooves 8. By providing the connection structure between the roller frames 7 and the sliding grooves 8, the up - and - down movement of the shielding case 4 can be made smoother, thus avoiding the occurrence of jamming.

[0036] A placement frame 9 is fixedly connected to the center of the top of the base 1. A cavity 10 is provided at the center of the front end of the base 1. Through holes are provided at both ends of the top of the base 1, and the through holes are arranged on both sides of the placement frame 9. The internal space of the through holes communicates with the internal space of the cavity 10. A baffle 11 is fixedly connected to the front end inner wall of the cavity 10. A forward and reverse motor 12 penetrates through the center of the front end of the baffle 11. The moving end of the forward and reverse motor 12 is rotatably connected to an inclined gear body 13. By setting the forward and reverse motor 12, the inclined gear body 13 can be rotated bidirectionally. The inclined convex block of the inclined gear body 13 meshes with an inclined gear ring 14. A shaft rod 15 is fixedly connected to the inner wall of the inclined gear ring 14. Both end faces of the shaft rod 15 are rotatably connected to a rotating shaft 16. The opposite faces of the rotating shaft 16 are fixedly connected to both sides of the inner wall of the cavity 10. Gear rings 17 are fixedly connected to both ends of the outer wall of the shaft rod 15. When the forward and reverse motor 12 drives the inclined gear body 13 to rotate, the shaft rod 15 on the inner wall of the inclined gear ring 14 will also rotate accordingly. At the same time, the two gear rings 17 will rotate in the same direction at the same speed.

[0037] Shaft rings 18 penetrate through the centers of both sides of the inner wall of the placement frame 9. Shaft cores 19 are rotatably connected to the inner walls of the shaft rings 18. Gear bodies 20 are fixedly connected to the opposite faces of the shaft cores 19. A gear belt 21 meshes with the outer walls of the gear body 20 and the gear ring 17. By using the gear belt 21, the gear ring 17 and the gear body 20 can be connected. The outer wall of the gear belt 21 vertically penetrates through the through holes at both ends of the top of the base 1. When the gear ring 17 rotates, the gear body 20 will rotate accordingly. At the same time, the two shaft cores 19 will also rotate accordingly. Threaded rods 22 are fixedly connected to the opposite faces of the shaft cores 19. Threaded sleeves 23 are in threaded transmission connection with the outer walls of the threaded rods 22. Movable plates 24 are fixedly connected to the outer walls of the threaded sleeves 23. U-shaped plates 25 are fixedly connected to the bottoms of the movable plates 24. Slide bars 26 are fixedly connected to both sides of the bottom end of the inner wall of the placement frame 9. The inner walls of the U-shaped plates 25 are slidably connected to the outer walls of the slide bars 26. Clamping blocks 27 are fixedly connected to the opposite faces of the movable plates 24. When the two threaded rods 22 rotate, the threaded sleeves 23 can move back and forth on the outer walls of the rotating threaded rods 22. At the same time, the movable plates 24 will also move back and forth accordingly. By setting the connection structure between the U-shaped plates 25 and the slide bars 26, the stability of the movable plates 24 during the back-and-forth movement can be improved. It should be noted that the opposite faces of the two movable plates 24 can only move closer to or away from each other. When the movable plates 24 move closer to each other, the two clamping blocks 27 will also move closer to each other, and the workpiece placed in the placement frame 9 can be fixed.

[0038] At the center of the top of the top plate 3, a backing plate 28 vertically penetrates through. At both ends of the backing plate 28, columns 29 vertically penetrate through. A cavity that penetrates up and down is provided at the center of the top of the top plate 3. The outer wall of the backing plate 28 is installed in the inner cavity of the top plate 3. Square cavities that penetrate up and down are provided at both ends of the backing plate 28. The bottom ends of the outer walls of the columns 29 are installed in the square cavities at both ends of the backing plate 28. A sliding cavity 30 that penetrates up and down is provided in the columns 29. At the bottom ends of the inner walls of the sliding cavity 30, sliding rods 31 are slidably connected. At the top ends of the outer walls of the sliding rods 31, return springs 32 are sleeved. At the top of the sliding rods 31, top blocks 33 are fixedly connected. Opposite faces of the top blocks 33 are fixedly connected with a pull rod 34. At the bottom of the sliding rods 31, a connector 35 is fixedly connected. At the bottom of the connector 35, an electric discharge machining head 36 is fixedly connected. The return spring 32 can push the top block 33 upward and simultaneously drive the electric discharge machining head 36 to move upward. The staff can firmly hold the pull rod 34 with one hand and pull the entire electric discharge machining head 36 downward to process the workpiece in the placement frame 9. At the center of the top of the connector 35, a wire 37 is fixedly connected. One end of the outer wall of the wire 37 penetrates through the center of the bottom of the backing plate 28. A perforation that penetrates up and down is provided at the center of the bottom of the backing plate 28. The outer wall of the wire 37 vertically penetrates through the inner perforation of the backing plate 28.

[0039] On one side of the rear end of the back plate 2, a placement plate 38 is fixedly connected. At the center of the top of the placement plate 38, a working fluid tank 39 is installed. A placement groove is provided at the center of the top of the placement plate 38. The bottom end of the outer wall of the working fluid tank 39 is installed in the placement groove at the top of the placement plate 38. A tank cover 40 is installed on the top of the working fluid tank 39. By setting a simple connection method between the working fluid tank 39 and the placement plate 38, the disassembly and assembly steps of the working fluid tank 39 are made more convenient and fast, and at the same time, it is also convenient to replace the working fluid inside the working fluid tank 39. The other end of the outer wall of the wire 37 vertically penetrates through the center of the top of the tank cover 40. On the other side of the rear end of the back plate 2, a support plate 41 penetrates through. Multiple air inlet fans 42 penetrate through the support plate 41. By setting the air inlet fans 42, outside air can be introduced into the electric discharge machine to cool the workpiece.

[0040] The above content further elaborates on the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as falling within the protection scope determined by the claims submitted for the present invention.

Claims

1. A die-sinking EDM machine, comprising a base (1), characterized in that: At the rear end of the top of the base (1), a back plate (2) is fixedly connected. At the front end of the back plate (2), a top plate (3) is fixedly connected. A shielding case (4) is slidably connected to the outer wall of the top plate (3). A toughened glass plate (5) penetrates through one side of the front end of the shielding case (4), and a dust-proof ventilation net (6) penetrates through the other side of the front end of the shielding case (4). Roller frames (7) penetrate through the centers of both outer walls of the top plate (3). Sliding grooves (8) are opened on both inner walls of the shielding case (4). One ends of the outer walls of the roller frames (7) are slidably connected to the inner walls of the sliding grooves (8). At the center of the top of the base (1), a placement frame (9) is fixedly connected. An electric discharge machining head (36) that can slide up and down is installed directly above the placement frame (9).

2. The electric discharge machine for mold processing according to claim 1, characterized in that: A cavity (10) is opened at the center of the front end of the base (1). A baffle (11) is fixedly connected to the front end inner wall of the cavity (10). A forward and reverse motor (12) penetrates through the center of the front end of the baffle (11). A bevel gear body (13) is rotatably connected to the movable end of the forward and reverse motor (12). A bevel gear ring (14) is engaged with the bevel convex block of the bevel gear body (13). A shaft rod (15) is fixedly connected to the inner wall of the bevel gear ring (14). Both end faces of the shaft rod (15) are rotatably connected to the two sides of the inner wall of the cavity (10) by rotating shafts (16).

3. A die sinking EDM according to claim 2, wherein: Gear rings (17) are fixedly connected to both ends of the outer wall of the shaft rod (15). Shaft rings (18) penetrate through the centers of both sides of the inner wall of the placement frame (9). Shaft cores (19) are rotatably connected to the inner walls of the shaft rings (18). Gear bodies (20) are fixedly connected to the opposite faces of the shaft cores (19). A gear belt (21) is engaged with the outer walls of both the gear bodies (20) and the gear rings (17). Threaded rods (22) are fixedly connected to the opposite faces of the shaft cores (19). Threaded sleeves (23) are threadedly driven on the outer walls of the threaded rods (22). Movable plates (24) are fixedly connected to the outer walls of the threaded sleeves (23). U-shaped plates (25) are fixedly connected to the bottoms of the movable plates (24). Slide bars (26) are fixedly connected to both bottom ends of the inner walls of the placement frame (9). The inner walls of the U-shaped plates (25) are slidably connected to the outer walls of the slide bars (26). Clamping blocks (27) are fixedly connected to the opposite faces of the movable plates (24).

4. A die-sinking EDM machine according to claim 1, characterized in that: A cushion plate (28) vertically penetrates through the center of the top of the top plate (3). Columns (29) vertically penetrate through both ends of the cushion plate (28). A sliding cavity (30) that penetrates up and down is opened in the columns (29). Slide rods (31) are slidably connected to the bottom ends of the inner walls of the sliding cavity (30). Return springs (32) are sleeved on the outer walls of the slide rods (31) at the top. Top blocks (33) are fixedly connected to the tops of the slide rods (31). A pull rod (34) is fixedly connected to the opposite faces of the top blocks (33).

5. A die-sinking EDM according to claim 4, characterized in that: The bottom of the sliding rod (31) is fixedly connected to a wiring connector (35). The bottom of the wiring connector (35) is fixedly connected to the top of the electric discharge machining head (36). The center of the top of the wiring connector (35) is fixedly connected to a wire (37). One end of the outer wall of the wire (37) penetrates through the center of the bottom of the backing plate (28).

6. A die-sinking EDM according to claim 5, characterized in that: One side of the rear end of the back plate (2) is fixedly connected to a placement plate (38). A working fluid tank (39) is installed at the center of the top of the placement plate (38). A tank cover (40) is installed on the top of the working fluid tank (39). The other end of the outer wall of the wire (37) vertically penetrates through the center of the top of the tank cover (40).

7. A die-sinking EDM according to claim 1, wherein: The other side of the rear end of the back plate (2) is penetrated by a support plate (41). Multiple air inlet fans (42) are penetrated in the support plate (41).

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