A clamp for a wire cutting machine tool

Abstract

The utility model discloses a kind of clamps for wire cutting machine tool, including first positioning assembly, swing plate, limit strip, first support strip and second support strip, the swing plate can be positioned angle and be located on first positioning assembly, first support strip is located on swing plate, first support strip, limit strip and second support strip are spliced into U type structure, the top surface of limit strip is higher than the top surface of first support strip, the top surface of first support strip and second support strip is on the same plane, first support strip and second support strip are slidably connected with limiting block, the position of workpiece is limited by limit strip and two limiting blocks cooperation, second positioning assembly is slidably connected on second support strip, and second positioning assembly is used for locking the position of workpiece, the clamp for wire cutting machine tool provided by the utility model realizes the installation of multiple angles to workpiece with bevel processing, can satisfy the cutting demand of multiple angles.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for wire cutting machine tools. Background Technology

[0002] A wire EDM machine is a type of mechanical equipment commonly used for metal cutting. It uses a moving metal wire (molybdenum wire) as a tool electrode and applies a pulsed current between the wire and the workpiece. The workpiece is cut by utilizing the corrosive effect of the pulsed discharge.

[0003] The existing common method for machining inclined surfaces on workpieces is to first machine the inclined block with the required angle from the drawing, then fix the workpiece on the inclined block and perform wire EDM machining. This method has low machining accuracy, and one inclined block can only be used to machine one type of inclined surface. Alternatively, wire EDM programming can be used to machine inclined surfaces, but the tilt angle of the metal wire can only be less than 45 degrees, and when the metal wire is tilted during machining, the aqueous solution cannot be fully absorbed, making the metal wire prone to breakage.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fixture for wire EDM machine tools, which aims to solve the technical problem that the prior art cannot meet the processing requirements of workpieces with different inclined surfaces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fixture for a wire EDM machine includes a first positioning component, a swing plate, a limiting strip, a first support strip, and a second support strip. The swing plate is angled and mounted on the first positioning component. The first support strip is mounted on the swing plate. The first support strip, the limiting strip, and the second support strip are joined together to form a U-shaped structure. The top surface of the limiting strip is higher than the top surface of the first support strip. The top surfaces of the first and second support strips are on the same plane. Limiting blocks are slidably connected to both the first and second support strips. The limiting strip and the two limiting blocks cooperate to limit the position of the workpiece. A second positioning component is slidably connected to the second support strip. The second positioning component is used to lock the position of the workpiece.

[0007] Furthermore, the first positioning component includes a first magnetic base, on which a first short column and a second short column are arranged vertically. The swing plate has a positioning hole that is rotatably connected to the first short column and an arc-shaped groove that is slidably connected to the second short column. The center of the arc-shaped groove is located on the axis of the positioning hole.

[0008] Furthermore, a first adjustment groove is provided at the bottom of the first support bar, and a first adjustment block is slidably connected to the first adjustment groove. The first adjustment block is connected to the limit block by a first screw.

[0009] Furthermore, the limiting strip has a second adjustment groove along its length, and the end of the second support strip is provided with a sliding part that is slidably connected to the second adjustment groove. The sliding part is locked in position by a second screw.

[0010] Furthermore, a third adjustment groove is provided on the side wall of the second support bar away from the first support bar. A second adjustment block is slidably connected to the third adjustment groove. The second adjustment block is connected to a mounting base by a third screw. The second positioning component is disposed on the mounting base.

[0011] Furthermore, the second positioning component includes a base disposed on the mounting base and located below the second support bar, and the base is provided with a second magnetic seat for magnetically fixing the workpiece.

[0012] Furthermore, the base is slidably connected with several guide rods, and the top of all the guide rods is provided with a mounting plate. The base is provided with height adjustment screws for adjusting the height of the mounting plate, and the second magnetic seat is located on the mounting plate.

[0013] Furthermore, the second positioning component includes a column mounted on the mounting base and a height adjustment rod that is vertically slidable on the column, with a pressure bar at the top of the height adjustment rod for pressing the workpiece.

[0014] Furthermore, the column has a T-slot along its length, the height adjustment rod is slidably connected to the T-slot, and the column locks the position of the height adjustment rod by a fourth screw.

[0015] Furthermore, the mounting base has a rod inserted into a socket at the bottom of the column, and the column locks the rod into the socket with a fifth screw.

[0016] Beneficial effects: (1) The workpiece position is fixed by the cooperation of the first support bar, the limiting bar, the second support bar, the two limiting blocks and the second positioning component. The swing plate is fixed on the first positioning component at a certain angle to meet the installation requirements of workpieces with different inclined surfaces. During the cutting process, the metal wire cuts the workpiece in a vertical state, which can ensure the cutting quality. (2) The distance between the first support bar and the second support bar is adjustable, the distance between the limiting bar and the limiting block is adjustable, and the second positioning component is slidably set on the second support bar, which can realize the fixing of workpieces of different sizes. Attached Figure Description

[0017] Figure 1 The structure of the fixture for a wire EDM machine tool provided by this utility model Figure 1 ; Figure 2 The explosion of the fixture for wire EDM machine provided by this utility model Figure 1 ; Figure 3 The structure of the fixture for a wire EDM machine tool provided by this utility model Figure 2 ; Figure 4 The explosion of the fixture for wire EDM machine provided by this utility model Figure 2 ; Figure 5 A partial side sectional view of the fixture for a wire EDM machine provided by this utility model. Figure 1 ; Figure 6 Side sectional view of the second positioning component in the fixture for a wire EDM machine provided by this utility model. Figure 1 ; Figure 7 Side sectional view of the second positioning component in the fixture for a wire EDM machine provided by this utility model. Figure 2 ; Figure 8 A partial side sectional view of the fixture for a wire EDM machine provided by this utility model. Figure 2 ; Figure 9 This is a schematic diagram of the installation of the fixture for a wire EDM machine provided by this utility model.

[0018] Reference numerals: First positioning component 1, first magnetic seat 11, first short column 12, second short column 13, n-shaped seat 14, seventh screw 15, swing plate 2, positioning hole 21, arc groove 22, sixth screw 23, limiting strip 3, second adjusting groove 31, first support strip 4, first adjusting groove 41, first adjusting block 42, first screw 43, second support strip 5, sliding part 51, second screw 52, ​​third adjusting groove 53, second adjusting block 54, third screw 55, second positioning component 6, base 61, second magnetic seat 62, guide rod 63, mounting plate 64, height adjusting screw 65, column 66, T-slot 661, insertion hole 662, height adjusting rod 67, pressure strip 68, fourth screw 69, limiting block 7, mounting seat 8, insertion rod 81, fifth screw 82; worktable a, support beam a1; workpiece b; metal wire c. Detailed Implementation

[0019] This utility model provides a fixture for a wire EDM machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] Please see Figures 1 to 9 As shown, the present invention provides a fixture for a wire EDM machine, wherein the wire EDM machine model can be DK7716, DK7720, DK7725, or DK7735. Figure 9 As shown, the fixture is installed on the worktable a of the wire cutting machine tool, specifically on a support beam a1 of the worktable a. The fixture is used to fix the workpiece b to be cut and to adjust the workpiece b to various angles for position fixation, so that the metal wire c of the wire cutting machine tool can cut the workpiece in a vertical state to meet the processing technical requirements of the workpiece.

[0021] The fixture includes a first positioning component 1, a swing plate 2, a limiting strip 3, a first support strip 4, and a second support strip 5. The swing plate 2 is mounted on the first positioning component 1 at a fixed angle, and the first support strip 4 is mounted on the swing plate 2. The first support strip 4, the limiting strip 3, and the second support strip 5 are joined together to form a U-shaped structure. The top surface of the limiting strip 3 is higher than the top surface of the first support strip 4. The top surfaces of the first support strip 4 and the second support strip 5 are on the same plane. Limiting blocks 7 are slidably connected to both the first support strip 4 and the second support strip 5. The limiting strip 3 and the two limiting blocks 7 cooperate to limit the position of the workpiece. A second positioning component 6 is slidably connected to the second support strip 5. The second positioning component 6 is used to lock the position of the workpiece.

[0022] When installing the workpiece, the installation angle of the swing plate 2 is adjusted according to the processing requirements of the workpiece, and the installation position of the swing plate 2 is fixed by the first positioning component 1. Then, the workpiece is placed on the first support bar 4 and the second support bar 5, so that the cutting position of the workpiece is within the area enclosed by the U-shaped structure. The positions of the two limiting blocks 7 are adjusted so that the two limiting blocks 7 and the limiting bar 3 cooperate to limit the position of the workpiece. Finally, the position of the workpiece is fixed by the second positioning component 6 to avoid the workpiece shifting during the cutting process and affecting the processing quality. Compared with the prior art, for workpieces with inclined surface processing, the installation angle of the workpiece can be adjusted according to its processing requirements, enabling installation at multiple angles and wide applicability; and during the cutting process, the wire of the wire EDM machine can be set vertically, and the aqueous solution can flow downward along the wire, effectively avoiding wire breakage.

[0023] In actual adjustment, a universal angle gauge can be used to adjust the tilt angle of the swing plate 2 to ensure the accuracy of the installation angle adjustment of the swing plate 2.

[0024] In a preferred embodiment, see [reference] Figure 2 , 45. The first positioning component 1 includes a first magnetic base 11, on which are arranged vertically a first short post 12 and a second short post 13. The swing plate 2 has a positioning hole 21 rotatably connected to the first short post 12 and an arc-shaped groove 22 slidably connected to the second short post 13. The center of the arc-shaped groove 22 is located on the axis of the positioning hole 21. Specifically, the arc-shaped groove 22 is locked in position by a sixth screw 23. During adjustment, the sixth screw 23 is loosened, the swing plate 2 rotates around the axis of the first short post 12, and the second short post 13 slides along the arc-shaped groove 22. After adjustment, the sixth screw 23 is tightened to lock the installation position of the swing plate 2.

[0025] Preferably, the second short post 13 is located above the first short post 12, which facilitates the worker's adjustment of the sixth screw 23; on the other hand, the sixth screw 23 is far away from the workpiece to avoid positional interference caused by the workpiece being too high.

[0026] In the above, the first magnetic base 11 has a switch. When the switch is turned on, the first magnetic base 11 generates magnetism to lock the clamp onto a support beam a1 of the worktable a, and the installation stability is good. Conversely, when the switch is turned off, the clamp can be moved, which can realize the quick assembly and disassembly of the clamp.

[0027] It should be noted that the magnetic base is existing technology, and the controllable switching of magnetic generation and demagnetization via a switch is also existing technology. Therefore, the specific structure and working principle of the magnetic base will not be described in detail here. The fixture is fixed at any position on the worktable a of the wire EDM machine tool using the magnetic base. In actual operation, an existing magnetic base of matching specifications can be selected based on parameters such as the size of the worktable a of the wire EDM machine tool and the weight of the fixture.

[0028] In the replacement plan, see Figure 8 The first positioning component 1 also includes an n-shaped seat 14, with the first short column 12 and the second short column 13 arranged vertically on one side of the n-shaped seat 14, and a seventh screw 15 screwed onto the other side of the n-shaped seat 14; the n-shaped seat 14 is on a support beam a1 of the worktable a, and the end of the seventh screw 15 abuts against the support beam a1 to lock the position of the n-shaped seat 14 on the support beam a1, thereby fixing the fixture on the worktable a.

[0029] In a preferred embodiment, see [reference] Figure 2 , 45. A first adjustment groove 41 is formed at the bottom of the first support bar 4. A first adjustment block 42 is slidably connected to the first adjustment groove 41. The first adjustment block 42 is connected to the limiting block 7 by a first screw 43. Preferably, the limiting block 7 has an L-shaped structure. The vertical surface of the limiting block 7 abuts against the workpiece, and the horizontal surface of the limiting block 7 is slidably connected to the first support bar 4. The first adjustment groove 41 is a rectangular groove, and the first adjustment block 42 can only slide along the first adjustment groove 41 and cannot rotate. During adjustment, the first adjustment block 42 moves horizontally along the first adjustment groove 41, thereby driving the limiting block 7 to move. Finally, the first screw 43 is tightened to lock the position of the limiting block 7.

[0030] Similarly, the installation structure of the limiting block 7 and the second support bar 5 is similar to the installation structure of the limiting block 7 and the first support bar 4 described above, and can be referred to the above structure for details.

[0031] In a preferred embodiment, see [reference] Figure 2 , 4 The limiting strip 3 has a second adjusting groove 31 along its length, and the end of the second support strip 5 is provided with a sliding part 51 that is slidably connected to the second adjusting groove 31. The sliding part 51 is locked in position by a second screw 52. By adjusting the position of the sliding part 51 in the second adjusting groove 31, the distance between the first support strip 4 and the second support strip 5 can be adjusted to ensure stable support for the workpiece.

[0032] In the above, by adjusting the distance between the first support bar 4 and the second support bar 5, and by adjusting the distance between the two limiting blocks 7 and the limiting bar 3, workpieces of various sizes can be fixed, making it widely applicable.

[0033] In a preferred embodiment, see [reference] Figure 2 , 4 The second support bar 5 has a third adjustment groove 53 on its side wall away from the first support bar 4. A second adjustment block 54 is slidably connected to the third adjustment groove 53. The second adjustment block 54 is connected to a mounting base 8 by a third screw 55. The second positioning component 6 is mounted on the mounting base 8. By adjusting the position of the mounting base 8 in the third adjustment groove 53, the installation position of the second positioning component 6 can be adjusted to ensure that the second positioning component 6 can act on the workpiece.

[0034] See Figure 1 , 26. For workpieces that can be attracted by magnetism, quick assembly and disassembly of the workpiece can be achieved through the second positioning component 6 described below. The second positioning component 6 includes a base 61 disposed on the mounting base 8 and located below the second support bar 5. The base 61 contains a second magnetic seat 62 for magnetically fixing the workpiece. It should be noted that the second support bar 5 is made of iron or a material that can be attracted by magnetism. The second magnetic seat 62 has a switch. When the switch is turned on, the second magnetic seat 62 generates magnetism to fix it to the bottom of the second support bar 5. The magnetism passes through the second support bar 5 to fix the workpiece; conversely, when the switch is turned off, the magnetism of the second magnetic seat 62 disappears, thereby releasing the fixation of the workpiece. Quick assembly and disassembly of the workpiece is achieved by setting the second magnetic seat 62.

[0035] Further, see Figure 6 The base 61 is slidably connected to several guide rods 63, and a mounting plate 64 is provided on the top of all the guide rods 63. The base 61 is provided with height adjustment screws 65 for adjusting the height of the mounting plate 64, and the second magnetic seat 62 is located on the mounting plate 64. By rotating the height adjustment screws 65, the installation height of the second magnetic seat 62 is adjusted so that the magnetic side of the second magnetic seat 62 is in close contact with the bottom of the second support bar 5.

[0036] See Figure 3 , 4 7. For workpieces made of aluminum, or other workpieces that cannot be attracted by magnetism, the second positioning component 6 described below enables quick assembly and disassembly of the workpiece. The second positioning component 6 includes a column 66 mounted on the mounting base 8, and a height adjustment rod 67 vertically slidable on the column 66. The top of the height adjustment rod 67 is provided with a pressure strip 68 for pressing the workpiece. By telescopically mounting the height adjustment rod 67 on the column 66, the installation height of the pressure strip 68 can be adjusted, allowing the pressure strip 68 to press the workpiece.

[0037] For further details, please refer to [link / reference]. Figure 7 The column 66 has a T-slot 661 along its length. The height adjustment rod 67 is slidably connected to the T-slot 661. The column 66 locks the position of the height adjustment rod 67 with a fourth screw 69. This configuration ensures that the height adjustment rod 67 can move vertically. Specifically, the column 66 has a screw hole communicating with the T-slot 661. The fourth screw 69 is threaded into the screw hole, and the end of the fourth screw 69 abuts against the height adjustment rod 67 to lock its position.

[0038] Furthermore, see Figure 7The mounting base 8 has a rod 81 inserted into it, and the bottom of the column 66 has a hole 662 into which the rod 81 can be inserted. The column 66 locks the rod 81 into the hole 662 with a fifth screw 82. Through the above arrangement, a detachable connection between the column 66 and the mounting base 8 is achieved, so that columns 66 of different heights can be replaced according to the height of the workpiece, so that the pressure strip 68 can be pressed tightly against the upper surface of the workpiece.

[0039] It should also be noted that since the mounting base 8 is installed on the second support bar 5 by the third screw 55, in practical applications, the corresponding second positioning component 6 can be installed according to the characteristics of the workpiece to meet the cutting requirements of all workpieces.

[0040] In summary, this utility model achieves positional limitation for workpieces of different sizes by adjusting the distance between the first support bar 4 and the second support bar 5, and the distance between the limiting block 7 and the limiting bar 3, and achieves rapid assembly and disassembly of workpieces by fixing the position of the workpieces through the second positioning component 6; the swing plate 2 can be installed at a fixed angle on the first positioning component 1 to achieve installation at multiple angles for workpieces with inclined surface processing, which can meet the cutting requirements of multiple angles.

[0041] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A fixture for a wire EDM machine, characterized in that, The device includes a first positioning component (1), a swing plate (2), a limiting strip (3), a first support strip (4), and a second support strip (5). The swing plate (2) is set at a fixed angle on the first positioning component (1), and the first support strip (4) is set on the swing plate (2). The first support strip (4), the limiting strip (3), and the second support strip (5) are spliced ​​into a U-shaped structure. The top surface of the limiting strip (3) is higher than the top surface of the first support strip (4). The top surfaces of the first support strip (4) and the second support strip (5) are on the same plane. Limiting blocks (7) are slidably connected to both the first support strip (4) and the second support strip (5). The limiting strip (3) and the two limiting blocks (7) cooperate to limit the position of the workpiece. A second positioning component (6) is slidably connected to the second support strip (5). The second positioning component (6) is used to lock the position of the workpiece.

2. The fixture for a wire EDM machine tool according to claim 1, characterized in that, The first positioning component (1) includes a first magnetic base (11), on which a first short column (12) and a second short column (13) are arranged vertically. The swing plate (2) has a positioning hole (21) that is rotatably connected to the first short column (12) and an arc groove (22) that is slidably connected to the second short column (13). The center of the arc groove (22) is located on the axis of the positioning hole (21).

3. The fixture for a wire EDM machine tool according to claim 1, characterized in that, The bottom of the first support bar (4) has a first adjustment groove (41), and the first adjustment groove (41) is slidably connected to a first adjustment block (42). The first adjustment block (42) is connected to the limit block (7) by a first screw (43).

4. The fixture for a wire EDM machine tool according to claim 1, characterized in that, The limiting strip (3) has a second adjustment groove (31) along its length direction, and the end of the second support strip (5) is provided with a sliding part (51) that is slidably connected to the second adjustment groove (31). The sliding part (51) is locked in position by a second screw (52).

5. The fixture for a wire EDM machine tool according to claim 1, characterized in that, The second support bar (5) has a third adjustment groove (53) on its side wall away from the first support bar (4). The third adjustment groove (53) is slidably connected to a second adjustment block (54). The second adjustment block (54) is connected to a mounting base (8) by a third screw (55). The second positioning component (6) is located on the mounting base (8).

6. The fixture for a wire EDM machine tool according to claim 5, characterized in that, The second positioning component (6) includes a base (61) disposed on the mounting base (8) and located below the second support bar (5), and a second magnetic seat (62) for magnetically fixing the workpiece is provided in the base (61).

7. The fixture for a wire EDM machine tool according to claim 6, characterized in that, The base (61) is slidably connected with several guide rods (63), and the top of all the guide rods (63) is provided with a mounting plate (64). The base (61) is provided with a height adjustment screw (65) for adjusting the height of the mounting plate (64), and the second magnetic seat (62) is located on the mounting plate (64).

8. The fixture for a wire EDM machine tool according to claim 5, characterized in that, The second positioning component (6) includes a column (66) mounted on a mounting base (8) and a height adjustment rod (67) that can be vertically slidably mounted on the column (66). The top of the height adjustment rod (67) is provided with a pressure strip (68) for pressing the workpiece.

9. The fixture for a wire EDM machine tool according to claim 8, characterized in that, The column (66) has a T-slot (661) along its length. The height adjustment rod (67) is slidably connected to the T-slot (661). The column (66) locks the position of the height adjustment rod (67) by the fourth screw (69).

10. The fixture for a wire EDM machine tool according to claim 8, characterized in that, The mounting base (8) has a rod (81) inserted on it. The bottom of the column (66) is provided with a socket (662) into which the rod (81) can be inserted. The column (66) locks the rod (81) in the socket (662) by the fifth screw (82).

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