Electrical discharge cutting fixture and method of electrical discharge wire cutting

Abstract

The present application relates to electric spark cutting fixing device, including base platform and setting on base platform horizontal adjustment mechanism and fixed angle positioning frame, horizontal adjustment mechanism includes workpiece placing groove and setting in workpiece placing tail end horizontal adjustment reference column, both sides of workpiece placing groove are provided with a plurality of first adjusting bolt, first adjusting bolt inner end articulates with first adjusting block, first adjusting block and workpiece side abut, horizontal adjustment reference column is equipped with tool body horizontal reference block, the bottom surface of tool body horizontal reference block is in horizontal plane, fixed angle positioning frame is in the front end of workpiece placing groove, workpiece passes through fixed angle positioning frame and workpiece placing groove, and the top of fixed angle positioning frame is provided with second adjusting bolt, the bottom end of second bolt bolt articulates second adjusting block, the present application also discloses electric spark wire cutting processing tool's method, the present application makes workpiece with top surface as reference plane to adjust tool body, then uses adjusting screw to fix tool body, and it is convenient to debug.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire cutting, more particularly, it relates to an electric spark cutting fixing device and a method for electric spark wire cutting machining tool. BACKGROUND

[0002] When cutting a hole type lathe tool by wire, the angle of the lathe tool blade needs to be adjusted so that the blade is a horizontal plane during machining tool processing. In this way, the size of the tool can be guaranteed to be qualified when cutting at an angle by wire. In the prior art, a shaped hole type lathe tool is used for machining, and this lathe tool will have the problem that the blade and the tool body are not in the same plane during welding, which makes the hole type unqualified when the tool is machining a hole type. Therefore, some unqualified lathe tools need to be reprocessed by wire cutting so that the lathe tool can complete the machining once when machining a rolling mill.

[0003] The traditional machining method is to first fix the tool on a plane, measure whether the left and right heights of the lathe tool are consistent with a depth gauge, then pad a shim on the lower side to make the heights of both sides consistent. In this process, the height needs to be measured once for each added shim, and the height needs to be adjusted repeatedly, which consumes a lot of auxiliary time. Therefore, it is necessary to propose a new fixing device to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide an electric spark cutting fixing device and a method for electric spark wire cutting machining tool, which adjusts the tool body with the top surface as the reference plane, and then fixes the tool body with an adjusting screw, thereby facilitating debugging.

[0005] The above technical purpose of the present application is achieved by the following technical scheme:

[0006] An electric spark cutting fixing device, comprising a base platform, a horizontal adjustment mechanism and a fixed angle positioning frame arranged on the base platform, the horizontal adjustment mechanism comprises a workpiece placing groove with openings at the front and rear ends and a horizontal adjustment reference column arranged at the tail end of the workpiece placing groove, a plurality of first adjusting bolts are arranged on the two sides of the workpiece placing groove, a first adjusting block is hinged to the inner end of the first adjusting bolt, the first adjusting block abuts against the side surface of the workpiece, a tool body horizontal reference block is sleeved on the horizontal adjustment reference column, the bottom surface of the tool body horizontal reference block is in a horizontal plane, and the top surface of the workpiece is determined to be in a horizontal plane; the fixed angle positioning frame is arranged at the front end of the workpiece placing groove, the workpiece passes through the fixed angle positioning frame and the workpiece placing groove, and a second adjusting bolt is arranged at the top end of the fixed angle positioning frame, and a second adjusting block is hinged to the bottom end of the second bolt, and used for pressing the top surface of the front end of the workpiece.

[0007] In the present application, the workpiece top surface is kept horizontal by adjusting the first adjusting bolt and the first adjusting block. The horizontal reference block of the blade is in contact with the workpiece top surface. When the horizontal reference block of the blade is in full contact with the workpiece top surface without any gap, it indicates that the workpiece top surface is in a horizontal plane. In addition, the second adjusting bolt and the second adjusting block are used to press the workpiece tightly in the state that the workpiece top surface is in a horizontal plane. In cooperation with the first adjusting bolt, the workpiece is completely fixed, which is convenient for wire cutting processing.

[0008] In one of the embodiments, the workpiece placing groove is detachably connected with the base platform, which is convenient for selecting different workpiece placing grooves according to different workpieces.

[0009] In one of the embodiments, the horizontal reference block of the blade is in a strip-shaped structure. The tail end of the horizontal reference block of the blade is sleeved on the horizontal adjusting reference column, and the front end of the horizontal reference block of the blade faces the fixed angle positioning frame.

[0010] In one of the embodiments, the fixed angle positioning frame is provided with an adjusting hole for the workpiece to pass through. The vertical sectional area of the adjusting hole is greater than the vertical sectional area of the workpiece placing groove. The top surface of the fixed angle positioning frame is provided with a moving groove, which is convenient for the horizontal movement of the second adjusting bolt on the fixed angle positioning frame. It is easy to understand that the second adjusting bolt is used in cooperation with the first adjusting bolt. The workpiece can be pressed tightly only when the workpiece top surface is in a horizontal plane. Therefore, in order not to affect the adjustment of the workpiece by the first adjusting bolt, the moving groove is arranged on the top surface of the fixed angle positioning frame, which is convenient for changing the position of the second adjusting bolt at any time.

[0011] In one of the embodiments, the adjusting hole of the fixed angle positioning frame is higher than the bottom surface of the workpiece placing groove. The bottom surface of the workpiece placing groove is provided with an auxiliary groove, which is located in front of the horizontal adjusting reference column. A pad is arranged in the auxiliary groove, and the pad is in abutment with the horizontal adjusting reference column. The pad of the present application is used to adjust the height of the tail end of the workpiece, so that the workpiece top surface is kept in a horizontal plane.

[0012] In one of the embodiments, the pad is in a triangular prism shape, and the cross section of the pad is a right-angled triangle. The inclined side surface of the pad is in contact with the workpiece.

[0013] In one of the embodiments, the number of the first adjusting bolts is four. Two first adjusting bolts are arranged on the two side surfaces of the workpiece placing groove respectively.

[0014] In one of the embodiments, the first adjusting bolt comprises a first bolt body and two first fixed nuts sleeved on the first bolt body. The two first fixed nuts fix the first bolt body on the side surface of the workpiece placing groove. The inner end of the first bolt body is hingedly connected with the first adjusting block.

[0015] In one of the embodiments, the first adjusting block rotates in the vertical direction.

[0016] In one of the embodiments, the second adjusting bolt comprises a second bolt body and two second fixed nuts sleeved on the second bolt body, the two second fixed nuts fixing the second bolt body at the moving groove of the fixed angle positioning frame, and the inner end of the second bolt body is hinged with the second adjusting block.

[0017] A method for processing a wire-cut electrical discharge machining tool using the above-mentioned wire-cut electrical discharge machining fixing device, and the specific steps are as follows:

[0018] The workpiece is placed in the workpiece placing groove, the front end of the workpiece extends from the fixed angle positioning frame, and the spacer is placed in the auxiliary groove of the workpiece placing groove, so that the top surface of the workpiece is substantially at the same height.

[0019] The tail end of the tool body horizontal reference block is sleeved on the horizontal adjusting reference column, at this time, the tool body horizontal reference block is in contact with the top surface of the workpiece, the first adjusting bolt on both sides of the workpiece placing groove is adjusted, the spatial position of the workpiece is changed through the rotation of the first adjusting block, until the top surface of the workpiece is completely in abutment with the tool body horizontal reference block, and then the first fixed nut is tightened.

[0020] During the adjustment of the first adjusting bolt, the position of the front end of the workpiece changes, when it is determined that the top surface of the workpiece is in a horizontal plane, the second adjusting bolt is tightened, and the position of the workpiece is fixed through the first adjusting bolt, the second adjusting bolt and the spacer.

[0021] The base platform is moved to the wire-cut electrical discharge machining equipment, and the front end of the workpiece is processed.

[0022] In summary, the present application has the following beneficial effects:

[0023] The present application adjusts the tool body with the top surface of the workpiece as a reference plane, and then fixes the tool body by using the adjusting screw, which is convenient for debugging and is suitable for various sizes of turning tools and milling tools. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a structural schematic diagram of the present application;

[0025] Fig. 2 is a structural schematic diagram of the workpiece placing groove of the present application;

[0026] Fig. 3 is a structural schematic diagram of the first adjusting bolt of the present application.

[0027] In the diagram: 1-Workpiece, 2-Base platform, 3-Workpiece placement slot, 4-Fixed angle positioning frame, 5-First adjusting bolt, 6-Second adjusting bolt, 7-Horizontal adjustment reference column, 8-Tool body horizontal reference block, 9-Moving slot, 10-Padded block, 11-Second bolt body, 12-Second adjusting block, 13-Second fixing nut, 14-First bolt body, 15-First adjusting block, 16-First fixing nut. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.

[0030] like Figs. 1-3 As shown, the present invention provides an electrical discharge machining (EDM) fixing device, including a base platform 2 and a horizontal adjustment mechanism and a fixed angle positioning frame 4 disposed on the base platform 2. The horizontal adjustment mechanism includes a workpiece placement groove 3 with openings at both ends and a horizontal adjustment reference column 7 disposed at the tail end of the workpiece 1. Multiple first adjustment bolts 5 are disposed on both sides of the workpiece placement groove 3. A first adjustment block 15 is hinged to the inner end of the first adjustment bolt 5. The first adjustment block 15 abuts against the side of the workpiece 1. A blade horizontal reference block 8 is sleeved on the horizontal adjustment reference column 7. The bottom surface of the blade horizontal reference block 8 is on a horizontal plane to determine that the top surface of the workpiece 1 is on a horizontal plane. The fixed angle positioning frame 4 is located at the front end of the workpiece placement groove 3. The workpiece 1 passes through the fixed angle positioning frame 4 and the workpiece placement groove 3. A second adjustment bolt 6 is disposed at the top end of the fixed angle positioning frame 4. The bottom end of the second bolt is hinged to a second adjustment block 12 to press the front top surface of the workpiece 1.

[0031] In this invention, the top surface of the workpiece 1 is adjusted to remain horizontal by the first adjusting bolt 5 and the first adjusting block 15. The blade horizontal reference block 8 is in contact with the top surface of the workpiece 1. When the blade horizontal reference block 8 is completely in contact with the top surface of the workpiece 1 and there is no gap, it indicates that the top surface of the workpiece 1 is at a horizontal plane. In addition, the function of the second adjusting bolt 6 and the second adjusting block 12 is to press the workpiece 1 in the state that the top surface of the workpiece 1 is at a horizontal plane. Together with the first adjusting bolt 5, the workpiece 1 is completely fixed, which facilitates wire cutting.

[0032] In one embodiment, the workpiece placement slot 3 is detachably connected to the base platform 2, which facilitates the selection of different workpiece placement slots 3 according to different workpieces 1.

[0033] In one embodiment, the blade horizontal reference block 8 is a long strip structure, the tail end of the blade horizontal reference block 8 is sleeved on the horizontal adjustment reference column 7, and the front end of the blade horizontal reference block 8 faces the fixed angle positioning frame 4.

[0034] In one embodiment, the fixed angle positioning frame 4 is provided with an adjustment hole to facilitate the passage of the workpiece 1. The vertical cross-sectional area of ​​the adjustment hole is larger than the vertical cross-sectional area of ​​the workpiece placement groove 3. The top surface of the fixed angle positioning frame 4 is provided with a movable groove 9 to facilitate the horizontal movement of the second adjusting bolt 6 on the fixed angle positioning frame 4. It is easy to understand that since the second adjusting bolt 6 is used in conjunction with the first adjusting bolt 5, the workpiece 1 can only be pressed tightly when its top surface is on a horizontal plane. Therefore, in order not to affect the adjustment of the workpiece 1 by the first adjusting bolt 5, a movable groove 9 is provided on the top surface of the fixed angle positioning frame 4 to facilitate changing the position of the second adjusting bolt 6 at any time.

[0035] In one embodiment, the adjustment hole of the fixed angle positioning frame 4 is higher than the bottom surface of the workpiece placement groove 3. An auxiliary groove is provided on the bottom surface of the workpiece placement groove 3, located directly in front of the horizontal adjustment reference column 7. A pad 10 is provided within the auxiliary groove, and the pad 10 abuts against the horizontal adjustment reference column 7. The pad 10 of this invention functions to adjust the height of the tail end of the workpiece 1, keeping the top surface of the workpiece 1 horizontal.

[0036] In one embodiment, the pad 10 is shaped as a triangular prism, and the cross-section of the pad 10 is a right triangle, with the oblique side of the pad 10 in contact with the workpiece 1.

[0037] In one embodiment, the number of the first adjusting bolts 5 is four, and two first adjusting bolts 5 are respectively provided on both sides of the workpiece placement groove 3.

[0038] In one embodiment, the first adjusting bolt 5 includes a first bolt body 14 and two first fixing nuts 16 sleeved on the first bolt body 14. The two first fixing nuts 16 fix the first bolt body 14 to the side of the workpiece placement groove 3. The inner end of the first bolt body 14 is hinged to the first adjusting block 15.

[0039] In one embodiment, the first adjustment block 15 rotates in the vertical direction.

[0040] In one embodiment, the second adjusting bolt 6 includes a second bolt body 11 and two second fixing nuts 13 sleeved on the second bolt body 11. The two second fixing nuts 13 fix the second bolt body 11 at the moving groove 9 of the fixed angle positioning frame 4. The inner end of the second bolt body 11 is hinged to the second adjusting block 12.

[0041] A method for machining tools using wire electrical discharge machining (EDM) employs the aforementioned EDM fixing device, and the specific steps are as follows:

[0042] Place workpiece 1 in workpiece placement slot 3, wherein the front end of workpiece 1 extends out of fixed angle positioning frame 4, and place pad block 10 in auxiliary groove of workpiece placement slot 3 so that the top surface of workpiece 1 is basically at the same height.

[0043] The tail end of the horizontal reference block 8 of the blade is fitted onto the horizontal adjustment reference column 7. At this time, the horizontal reference block 8 of the blade is in contact with the top surface of the workpiece 1. The first adjusting bolts 5 on both sides of the workpiece placement groove 3 are adjusted. By rotating the first adjusting block 15, the spatial position of the workpiece 1 is changed until the top surface of the workpiece 1 is completely in contact with the horizontal reference block 8 of the blade. Then the first fixing nut 16 is tightened.

[0044] During the adjustment of the first adjusting bolt 5, the position of the front end of the workpiece 1 changes. After it is determined that the top surface of the workpiece 1 is on the horizontal plane, the second adjusting bolt 6 is tightened, and the workpiece 1 is fixed in position by the first adjusting bolt 5, the second adjusting bolt 6 and the pad 10.

[0045] Move the base platform 2 to the wire EDM equipment to process the front end of the workpiece 1.

[0046] It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An electrical discharge machining fixture, characterized by comprising: The utility model relates to a horizontal adjustment mechanism and fixed angle positioning frame (4) of base platform (2) and setting on base platform (2), the horizontal adjustment mechanism includes the workpiece placement groove (3) of two ends opening before and after and sets the horizontal adjustment reference column (7) of workpiece (1) placement tail end, the both sides of workpiece placement groove (3) are provided with a plurality of first adjusting bolt (5), the inner end hinged first adjusting block (15) of first adjusting bolt (5), first adjusting block (15) with the side of workpiece (1) abuts, the horizontal adjustment reference column (7) is sleeved with the blade horizontal reference block (8), the bottom surface of blade horizontal reference block (8) is in horizontal plane, for determining the top surface of workpiece (1) is in horizontal plane, the fixed angle positioning frame (4) is in the front end of workpiece placement groove (3), and workpiece (1) passes through fixed angle positioning frame (4) and workpiece placement groove (3), and the top end of fixed angle positioning frame (4) is provided with second adjusting bolt (6), and the bottom end of second adjusting bolt is hinged second adjusting block (12), for pressing the top surface of front end of workpiece (1); The blade horizontal reference block (8) is a long strip structure, the tail end of the blade horizontal reference block (8) is sleeved on the horizontal adjustment reference column (7), and the front end of the blade horizontal reference block (8) faces the fixed angle positioning frame (4); The fixed angle positioning frame (4) is provided with an adjusting hole for facilitating the workpiece (1) to pass through, the vertical sectional area of the adjusting hole is greater than the vertical sectional area of the workpiece placement groove (3), and the top surface of the fixed angle positioning frame (4) is provided with a moving groove (9) for facilitating the horizontal movement of the second adjusting bolt (6) on the fixed angle positioning frame (4); The adjusting hole of the fixed angle positioning frame (4) is higher than the bottom surface of the workpiece placement groove (3), the bottom surface of the workpiece placement groove (3) is provided with an auxiliary groove, the auxiliary groove is located in front of the horizontal adjustment reference column (7), the auxiliary groove is provided with a pad (10), and the pad (10) abuts against the horizontal adjustment reference column (7); The workpiece placement groove (3) is detachably connected with the base platform (2), so that different workpiece placement grooves (3) can be selected according to different workpieces (1); The number of the first adjusting bolts (5) is four, and two first adjusting bolts (5) are arranged on each side surface of the workpiece placement groove (3).

2. The electrospark machining fixture of claim 1, wherein The first adjusting bolt (5) comprises a first bolt body (14) and two first fixed nuts (16) sleeved on the first bolt body (14), the two first fixed nuts (16) fix the first bolt body (14) on the side surface of the workpiece placement groove (3), and the inner end of the first bolt body (14) is hinged with the first adjusting block (15).

3. The electrospark machining fixture of claim 2, wherein, The first adjusting block (15) rotates in the vertical direction.

4. The electrospark machining fixture of claim 3, wherein The second adjusting bolt (6) comprises a second bolt body (11) and two second fixed nuts (13) sleeved on the second bolt body (11), the two second fixed nuts (13) fix the second bolt body (11) at the moving groove (9) of the fixed angle positioning frame (4), and the inner end of the second bolt body (11) is hinged with the second adjusting block (12).

5. A method of wire electro-discharge machining using the electro-discharge cutting fixture according to claim 4, characterized by, The steps are as follows: The workpiece (1) is placed in the workpiece placing groove (3), the front end of the workpiece (1) extends from the fixed angle positioning frame (4), the spacer (10) is placed in the auxiliary groove of the workpiece placing groove (3), and the top surface of the workpiece (1) is substantially at the same height; The tail end of the cutter body horizontal reference block (8) is sleeved on the horizontal adjusting reference column (7), at this time, the cutter body horizontal reference block (8) is in contact with the top surface of the workpiece (1), the first adjusting bolt (5) on both sides of the workpiece placing groove (3) is adjusted, the spatial position of the workpiece (1) is changed through rotation of the first adjusting block (15), until the top surface of the workpiece (1) is completely in abutment with the cutter body horizontal reference block (8), and then the first fixed nut (16) is tightened; During adjustment of the first adjusting bolt (5), the position of the front end of the workpiece (1) changes, when it is determined that the top surface of the workpiece (1) is in a horizontal plane, the second adjusting bolt (6) is tightened, and the workpiece (1) is fixed in position through the first adjusting bolt (5), the second adjusting bolt (6) and the spacer (10); The base platform (2) is moved to the wire cutting machining equipment, and the front end of the workpiece (1) is machined.

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