A processing tool and a processing method for chamfering a closed groove

Abstract

The present invention relates to the technical field of processing tooling, and discloses a processing tooling and a processing method for chamfered closed grooves, wherein the tooling comprises: a base and a positioning seat; the base is provided with at least two first positioning parts; the positioning seat is defined with a clamping position for clamping a part to be processed, and the positioning seat is provided with at least two second positioning parts corresponding to each of the first positioning parts, the positioning seat can rotate around the base between at least two processing positions, and lock at each of the processing positions, and when the positioning seat rotates to each of the processing positions, at least one of the second positioning parts on the positioning seat is matched with at least one of the first positioning parts on the base for positioning. The present invention ensures the quality of the processing of the chamfered closed groove of the part and effectively improves the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of processing tooling, and in particular to a processing tooling and a processing method for a chamfered closed groove. Background Art

[0002] like Figure 12-16 The part 10 shown needs to be cut with a closed groove 1001 running through the upper and lower ends, and chamfers 1002 of a certain angle are processed at both ends of the closed groove 1001. To ensure that the surface roughness of the part and the width of the groove are within 1.36+0.05 / -0.02, the processing methods currently used are:

[0003] 1) Use a five-axis cutting machine with a large rotation angle to form in one go, which can ensure the accuracy of the processed part. However, this method has very high equipment costs and tests the technical level of the technicians.

[0004] 2) Use separate processing steps: a. First process a straight groove; b. Then process a 62° chamfer; c. Process the last 62° chamfer; However, this method has the following disadvantages:

[0005] a. It is difficult to ensure the part size accuracy of 1.36+0.05 / -0.02 and the angle of 45°±0.5°;

[0006] b. It is difficult to ensure surface defects and dimensional deviations caused by clamping errors, mechanical errors, and human errors generated by multiple processes;

[0007] c. The clamping time and machine adjustment and line change time caused by multiple processes can easily lead to low efficiency and occupy more equipment. Summary of the invention

[0008] The purpose of the present invention is to provide a method for processing tooling and chamfering closed grooves. By clamping parts with the tooling for processing, compared with step-by-step processing, poor quality caused by secondary clamping and mechanical coordinate errors can be avoided, the quality stability of the processed parts is significantly improved, and the processing efficiency is effectively improved, saving equipment resources; compared with processing using a five-axis cutting machine with a large rotation angle, the equipment use cost is significantly reduced.

[0009] In order to achieve the above-mentioned objectives, the present invention provides a processing tool, comprising: a base and a positioning seat; the base is provided with at least two first positioning parts; the positioning seat is defined with a clamping position for clamping the parts to be processed, and the positioning seat is provided with at least two second positioning parts which correspond one-to-one with each of the first positioning parts for positioning; the positioning seat can rotate around the base between at least two processing positions and lock at each of the processing positions; when the positioning seat rotates to each of the processing positions, at least one of the second positioning parts on the positioning seat cooperates with at least one of the first positioning parts on the base for positioning.

[0010] In some embodiments, the base includes: a mounting seat and a support block; the support block is installed on a side of the mounting seat; the positioning seat is installed on the same side of the mounting seat and is located on the top of the support block; the top of the support block is provided with a first positioning surface, and the bottom of the positioning seat is provided with a second positioning surface that cooperates with the first positioning surface, the first positioning surface is defined to form one of the first positioning portions, and the second positioning surface is defined to form a second positioning portion.

[0011] In some embodiments, a rotating portion is provided at the bottom of the positioning seat, and a rotating position for cooperating with the rotating portion is provided on the support block; a first positioning hole is provided on the mounting seat, and a second positioning hole for cooperating with the first positioning hole is provided on the positioning seat, the first positioning hole is defined to form one of the first positioning portions, the second positioning hole is defined to form one of the second positioning portions, and a positioning member is connected between the first positioning hole and the second positioning hole.

[0012] In some embodiments, two first positioning surfaces and two second positioning surfaces corresponding to the first positioning surfaces are included, and the two first positioning surfaces are respectively arranged on both sides of the rotation position.

[0013] In some embodiments, the two first positioning surfaces are symmetrically distributed on both sides of the rotation position.

[0014] In some embodiments, the rotation position is a slot extending through the top surface of the support block.

[0015] In some embodiments, the positioning seat is provided with a first through groove which runs through the upper and lower ends thereof and is connected with the clamping position.

[0016] In some embodiments, the positioning seat includes a supporting surface for supporting the part to be processed, a support plate is provided at the lower end of the supporting surface, pressure plates are provided on both sides of the supporting surface, and the clamping position is defined between the supporting surface, the two pressure plates and the support plate.

[0017] In some embodiments, the base is provided with a second through slot that passes through the base, the positioning seat is provided with a first connecting hole that is compatible with the second through slot, a rotating shaft is installed between the second through slot and the first connecting hole, and the positioning seat is rotatably connected to the base around the rotating shaft.

[0018] In some embodiments, a third through slot is provided on the base and passes through the base, and a second connecting hole corresponding to the third through slot is provided on the positioning seat. The cross-section of the third through slot is an arc shape with the rotation axis of the positioning seat as the center, and a fastener is installed between the third through slot and the second connecting hole.

[0019] In some embodiments, a mounting hole is provided on the clamping position, and a magnet for adsorbing the part to be processed is provided in the mounting hole.

[0020] A method for processing a chamfered closed groove, using any of the processing tools described above, wherein the clamping position is provided with a first through groove that runs through the upper and lower ends of the positioning seat, and the processing method comprises the following steps:

[0021] Clamping the part to be processed to the clamping position of the positioning seat;

[0022] A through hole is opened in the middle of the area to be processed on the part, a molybdenum wire is passed through the through hole and the first through groove in sequence, and the positioning seat is locked to a processing position, and a straight groove is processed on the part through the molybdenum wire;

[0023] The positioning seat is rotated and locked to another processing position, and a chamfer is processed on one side of the straight groove by molybdenum wire.

[0024] Compared with the prior art, the processing tooling and the processing method of the chamfered closed groove proposed by the present invention have the following beneficial effects: the part to be processed is placed on the clamping position of the positioning seat, the clamping position cooperates with the support plate to fix the part, and after the straight groove is processed on the part, the positioning seat rotates relative to the base, and when the second positioning surface at the bottom of the positioning seat abuts against any first positioning surface of the support block, the positioning seat is fixed at the position to perform chamfering processing on the part, and the chamfering processing on one side is completed before the chamfering processing on the other side. In this processing process, it is not necessary to disassemble and assemble the parts, and the tooling does not need to be moved. It is only necessary to control the rotation of the positioning seat to complete the processing of the straight groove and chamfer of the part, and the quality stability of the processed product is significantly improved, and the processing efficiency is also significantly improved, while the equipment cost is also reduced; further, by the rotating shaft arranged between the positioning seat and the mounting seat, the positioning seat can be rotated relative to the mounting seat, and the position of the positioning seat is locked by the fastener, so that the part installed on the positioning seat is stable during processing, and the processing quality is ensured; by designing the inclination angle of the support surface and the inclination angle of the two first positioning surfaces of the support block, the processing of parts with different processing requirements can be matched, and the application is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;

[0026] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the assembly of the tooling and parts of the present invention;

[0028] Figure 4 It is a schematic diagram of the base structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection plate structure of the present invention;

[0030] Figure 6 It is a front view of the positioning seat structure of the present invention;

[0031] Figure 7 is a side view of the positioning seat structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the support block structure of the present invention;

[0033] Fig. 9 The processing process of the present invention is schematically shown in FIG. Figure 1 ;

[0034] Fig.10 The processing process of the present invention is schematically shown in FIG. Figure 2 ;

[0035] Fig.11 The processing process of the present invention is schematically shown in FIG. Figure 3 ;

[0036] Fig.12 It is a schematic diagram of the parts processed by the present invention Figure 1 ;

[0037] Fig.13 It is a schematic diagram of the parts processed by the present invention Figure 2 ;

[0038] Fig.14 It is a front view of the parts processed by the present invention;

[0039] Fig.15 yes Fig.14 Section view at AA;

[0040] Fig.16 yes Fig.15 Cross-sectional view at BB.

[0041] In the figure, 110, base; 120, mounting seat; 1, first connecting plate; 101, top plate; 102, middle plate; 103, bottom plate; 104, first step surface; 105, second step surface; 2, second connecting plate; 3, positioning seat; 301, first through groove; 302, support plate; 303, pressure plate; 304, mounting hole; 305, rotating part; 306, supporting surface; 307, second positioning surface; 4, supporting block; 401, rotating position; 402, first positioning surface; 5, magnet; 6, screw Nail; 7. Positioning column; 8. Rotating shaft; 9. Fastener; 10. Parts; 1001. Closed groove; 1002. Chamfer; 11. Third positioning hole; 12. First fixing hole; 13. Second fixing hole; 14. Fourth positioning hole; 15. First positioning hole; 16. Third through groove; 17. Second through groove; 18. Sixth connecting hole; 19. Second positioning hole; 20. Second connecting hole; 21. First connecting hole; 22. Fourth connecting hole; 23. Fifth connecting hole; 24. Molybdenum wire; 25. Positioning piece. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] like Figure 1-Figure 3 As shown, according to some embodiments of the present application, a processing tool includes: a base 110 and a positioning seat 3; the base 110 is provided with at least two first positioning parts; the positioning seat 3 is defined with a clamping position for clamping the part 10 to be processed, and the positioning seat 3 is provided with at least two second positioning parts that correspond to each of the first positioning parts in a one-to-one manner. The positioning seat 3 can rotate around the base 110 between at least two processing positions and be locked in each of the processing positions. When the positioning seat 3 rotates to each of the processing positions, at least one of the second positioning parts on the positioning seat 3 is positioned in cooperation with at least one of the first positioning parts on the base.

[0047] Based on the above scheme, the part 10 to be processed is placed on the clamping position of the positioning seat 3. When the part 10 to be processed is processed, the positioning seat 3 can be rotated relative to the base 110 through the coordinated positioning of the first positioning part and the second positioning part. After the positioning seat 3 is rotated, its position is locked, thereby realizing the processing of different position angles of the part 10; in this processing process, there is no need to disassemble the part 10, and the tooling does not need to be moved. It is only necessary to control the rotation of the positioning seat 3 to complete the processing of the closed groove 1001 and the chamfer 1002 of the part 10, and the quality stability of the processed products is significantly improved, and the processing efficiency is also significantly improved, while the equipment cost is reduced.

[0048] In some embodiments, the base 110 includes: a mounting seat 120 and a support block 4; the support block 4 is mounted on a side of the mounting seat 120; the positioning seat 3 is mounted on the same side of the mounting seat 120 and is located on the top of the support block 4; the top of the support block 4 is provided with a first positioning surface 402, and the bottom of the positioning seat 3 is provided with a second positioning surface 307 that cooperates with the first positioning surface 402 and abuts against it, the first positioning surface 402 defines one of the first positioning portions, and the second positioning surface 307 defines one of the second positioning portions;

[0049] A downwardly protruding rotating portion 305 is provided in the middle position of the bottom of the positioning seat 3, and the central axis of the rotating portion 305 is perpendicular to a side surface of the mounting seat 120, and a rotating position 401 for rotating with the rotating portion 305 is provided on the support block 4; a first positioning hole 15 is provided on the mounting seat 120, and a second positioning hole 19 for positioning with the first positioning hole 15 is provided on the positioning seat 3, the first positioning hole 15 is defined to form one of the first positioning portions, the second positioning hole 19 is defined to form one of the second positioning portions, and a positioning member 25 is connected between the first positioning hole 15 and the second positioning hole 19; the first positioning hole 15 and the second positioning hole 19 are connected by the positioning member 25 to define the relative position of the mounting seat 120 and the positioning seat 3, so as to ensure that the positioning seat 3 is in a horizontal state before the part 10 is processed, thereby ensuring that the part 10 placed on the clamping position is straight, so that a straight groove that meets the requirements can be processed.

[0050] Based on the above scheme, the part 10 to be processed is placed on the clamping position of the positioning seat 3. After the straight groove is processed on the part 10, the positioning seat 3 rotates relative to the mounting seat 120, and the protruding rotating portion 305 is arranged in the recessed rotating position 401 of the support block 4, ensuring that the center position of the positioning seat 3 remains unchanged during rotation. When the bottom of the positioning seat 3 is against any first positioning surface 402 of the support block 4, the positioning seat 3 is fixed in position to perform chamfering on the part 10. After the chamfering on one side is completed, the positioning seat 3 is rotated again so that the bottom of the positioning seat 3 is against the other first positioning surface 402 of the support block 4, and then the chamfering on the other side is performed. During this processing, there is no need to disassemble and assemble the part 10, and the tooling does not need to be moved. It is only necessary to control the rotation of the positioning seat 3 to complete the processing of the straight groove and chamfer of the part 10. The quality stability of the processed products is significantly improved, and the processing efficiency is also significantly improved, while the equipment cost is reduced.

[0051] In some embodiments, the processing tooling includes two first positioning surfaces 402 and two second positioning surfaces 307 corresponding to each of the first positioning surfaces 402 , and the two first positioning surfaces 402 are respectively arranged on both sides of the rotation position 401 ; the two first positioning surfaces 402 are symmetrically distributed on both sides of the rotation position 401 .

[0052] In some embodiments, the rotation position 401 is a slot that runs through the top surface of the support block 4 .

[0053] In some embodiments, the specific structures of the rotating portion 305 and the rotating position 401 can be interchanged, that is, the rotating portion 305 can be a recessed groove structure, and the rotating position 401 can be a corresponding protruding column structure.

[0054] In some embodiments, the positioning seat 3 is provided with a first through slot 301 penetrating through the upper and lower ends thereof and communicating with the clamping position.

[0055] In some embodiments, the positioning seat 3 includes a supporting surface 306 for supporting the part 10 to be processed, a support plate 302 is provided at the lower end of the supporting surface 306, and a pressure plate 303 is provided on both sides of the supporting surface 306. The supporting surface 306, the two pressure plates 303 and the support plate 302 define the clamping position. The two pressure plates 303 are installed at the two ends of the positioning seat 3 by screws 6 and other standard parts. The pressure plates 303 at both ends cooperate with the support plate 302 at the lower end and the supporting surface 306 to form a semi-closed clamping position. The part 10 is placed on the supporting surface 306. Since the supporting surface 306 is inclined, the part 10 naturally tilts and slides, and the support plate 302 drags the part 10. When the positioning seat 3 rotates, the pressure plates 303 at both ends can fix the part 10 well, ensuring that the part 10 is in a stable state during the entire processing process, so that the processing accuracy can be guaranteed. The pressure plate 303 is provided with a third connecting hole that cooperates with the pin or screw 6, and the positioning seat is provided with a fourth connecting hole 22 corresponding to the third connecting hole. The pressure plate 303 is fixed on both sides of the support surface 306 by inserting the pin or screw 6 through the third connecting hole into the fourth connecting hole 22.

[0056] In some embodiments, the base 110 is provided with a second through groove 17 that passes through the base 110, the positioning seat 3 is provided with a first connecting hole 21 that is compatible with the second through groove 17, a rotating shaft 8 is installed between the second through groove 17 and the first connecting hole 21, and the positioning seat 3 is rotatably connected to the base 110 around the rotating shaft 8; the base 110 is provided with a third through groove 16 that passes through the base 110, the positioning seat 3 is provided with a second connecting hole 20 that corresponds to the third through groove 16, the cross-section of the third through groove 16 is an arc shape with the rotation axis of the positioning seat 3 as the center, and a fastener 9 is installed between the third through groove 16 and the second connecting hole 20.

[0057] Based on the above scheme, the rotating shaft 8 arranged between the second through slot 17 and the first connecting hole 21 serves as the center of rotation of the positioning seat 3. The rotating shaft 8 passes through the second through slot 17 and is inserted into the first connecting hole 21; the arc-shaped third through slot 16 is used to limit the rotation range of the positioning seat 3. When the positioning seat 3 is rotated to a certain angle relative to the mounting seat 120, the position of the second connecting hole 20 changes, which is equivalent to the relative position of the second connecting hole 20 and the third through slot 16 changing. The third through slot 16 and the second connecting hole 20 are locked by the fastener 9, thereby locking the position of the positioning seat 3.

[0058] In some embodiments, a mounting hole 304 is provided on the clamping position, and a magnet 5 for adsorbing the part to be processed is provided in the mounting hole 304. When the part 10 to be processed is a metal part, the magnet 5 is placed in the mounting hole 304, and the magnet 5 needs to have strong magnetism, so that the part 10 can be adsorbed on the clamping position, and during the processing, the part 10 can be always adsorbed on the clamping position without deflection, etc., to ensure the processing accuracy.

[0059] The sum of the inclination angle a of the two first positioning surfaces 402 of the support block 4 and the rotation angle of the positioning seat 3 is 90°.

[0060] In some embodiments, the inclination angle b of the support surface 306 is 30°-60°, and the inclination angle a of the first positioning surface 402 is 20°-40°. According to the processing requirements of the parts, the two inclination angles a and b are adaptively adjusted. Figure 1 When the part is shown, the inclination angle b of the support surface 306 is set to 45°, which angle may have an error of plus or minus 1°, and the inclination angle a of the first positioning surface 402 is set to 62°.

[0061] In some embodiments, Figure 8 As shown, the support block 4 is provided with a fifth connecting hole 23 which cooperates with the pin or screw 6, and the mounting seat 120 is provided with a sixth connecting hole 18 which corresponds to the fifth connecting hole 23. The support block 4 is fixed to the mounting seat 120 by inserting the pin or screw 6 through the fifth connecting hole 23 into the sixth connecting hole 18.

[0062] In some embodiments, the support block 4 and the mounting seat 120 are integrally formed.

[0063] In some embodiments, the cross section of the rotating portion 305 is arc-shaped. The rotating portion 305 is placed in the rotating position 401. When the positioning seat 3 rotates, the friction between the rotating portion 305 and the rotating position 401 is small, and the rotation is smoother.

[0064] In some embodiments, Figure 7 As shown, the support surface 306 is corrugated. Since the part 10 is placed on the inclined support surface 306, the part 10 will slide down under the action of gravity. By designing the surface of the support surface 306 to be corrugated, the friction between the part 10 and the support surface 306 is increased. Combined with the magnet 5, the pressure plate 303 and the support plate 302, it can be ensured that the part 10 can be stably installed in the clamping position.

[0065] In some embodiments, Figure 4As shown, the mounting base 120 includes a first connecting plate 1 and a second connecting plate 2, the first connecting plate 1 includes a top plate 101, a middle plate 102 and a bottom plate 103, one end of the top plate 101 is connected to one end of the middle plate 102, the other end of the middle plate 102 is connected to one end of the bottom plate 103, the top plate 101 and the middle plate 102 are perpendicular to each other, the middle plate 102 and the bottom plate 103 are perpendicular to each other, and the second connecting plate 2 is installed on the bottom plate 103;

[0066] The surface of the bottom plate 103 is stepped, including a first step surface 104 and a second step surface 105 . The horizontal height of the first step surface 104 is higher than the horizontal height of the second step surface 105 . The second connecting plate 2 is installed on the second step surface 105 by means of a latch or a screw 6 .

[0067] In some embodiments, at least two third positioning holes 11 and at least two first fixing holes 12 are provided on the second step surface 105, and the second connecting plate 2 includes a first plate body extending along its bottom toward the base and adapted to the second step surface 105, and a second plate body matched with the positioning seat 3, the first plate body is vertically connected to the second plate body, a fourth positioning hole 14 corresponding to the third positioning hole 11 and a second fixing hole 13 corresponding to the first fixing hole 12 are provided on the first plate body, a positioning column 7 is provided between the third positioning hole 11 and the fourth positioning hole 14 for connection and positioning, and a screw 6 or a pin is provided between the first fixing hole 12 and the second fixing hole 13 for fixing.

[0068] A method for processing a chamfered closed groove, using any of the processing tools described above, wherein the clamping position is provided with a first through groove that runs through the upper and lower ends of the positioning seat, and the processing method comprises the following steps:

[0069] Clamping the part 10 to be processed to the clamping position of the positioning seat 3;

[0070] A through hole is opened in the middle of the area to be processed on the part 10, and the molybdenum wire 24 is passed through and passed out from the first through groove 301. The molybdenum wire 24 first passes a 1.36 mm wide rectangular route on the part 10 to form a straight groove, i.e., a closed groove 1001. Fig. 9 The area shown in box A is the processing area;

[0071] The positioning seat 3 is rotated so that the second positioning surface 307 at the bottom of the positioning seat 3 abuts against the first positioning surface 402 of the support block 4, and a chamfer 1002 on one side of the straight groove is processed along a 1.36 mm wide rectangular route. Fig.10 The area shown in the box B is the processing area;

[0072] The positioning seat 3 is rotated so that the second positioning surface 307 at the bottom of the positioning seat 3 abuts against the other first positioning surface 402 of the support block 4, and the chamfer 1002 on the other side of the straight groove is processed in the same manner along a 1.36 mm wide rectangular route. Fig.11 The area shown in box C is the processing area.

[0073] The difference from the processing method of the chamfered closed groove described in the above embodiment is that the processing method comprises the following steps:

[0074] The position of the positioning seat 3 is locked by tightening the fastener 9, and a straight groove is processed on the part 10;

[0075] Loosen the fastener 9, rotate the positioning seat 3 so that the second positioning surface 307 at the bottom of the positioning seat 3 abuts against the first positioning surface 402 of the support block 4, tighten the fastener 9 to lock the position of the positioning seat 3, and process the chamfer 1002 on one side of the straight groove of the part 10;

[0076] Loosen the fastener 9, rotate the positioning seat 3 so that the second positioning surface 307 at the bottom of the positioning seat 3 abuts against the other first positioning surface 402 of the support block 4, tighten the fastener 9 to lock the position of the positioning seat 3, and process the chamfer 1002 on the other side of the straight groove of the part 10.

[0077] In some embodiments, the processing method comprises:

[0078] Before machining a straight groove on the part 10 , the mounting seat and the positioning seat 3 are positioned together by the positioning member 25 so that the positioning seat 3 remains horizontal, the fastener 9 is tightened to lock the position of the positioning seat 3 , and then a straight groove is machined on the part 10 .

[0079] In summary, the processing tooling and method proposed in the present invention have the following technical effects: (1) Quality stability is significantly improved: By processing in steps, this processing method can completely avoid the poor quality caused by secondary clamping and mechanical coordinate errors; (2) Processing efficiency is improved and equipment resources are saved: By processing in steps, this method can save the time of two machine adjustments and two workpiece clamping times, as well as two devices; (3) Equipment costs are greatly reduced: If such processing is to be completed under the requirements of stable quality and high efficiency, a five-axis EDM machine is required. Such equipment is extremely rare on the market and is extremely expensive.

[0080] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for processing a chamfered closed groove, characterized in that: Using a processing tool to perform processing, wherein the processing tool comprises a base, on which at least two first positioning parts are provided; A positioning seat, on which a clamping position for clamping a part to be processed is defined, and the positioning seat is provided with at least two second positioning parts corresponding to each of the first positioning parts for positioning, the positioning seat can rotate around the base between at least two processing positions and be locked at each of the processing positions, when the positioning seat rotates to each of the processing positions, at least one of the second positioning parts on the positioning seat cooperates with at least one of the first positioning parts on the base for positioning; the base comprises: a mounting seat and a support block; the support block is mounted on one side of the mounting seat; the positioning seat is mounted on the same side of the mounting seat and is located on the top of the support block; The top of the support block is provided with a first positioning surface, the bottom of the positioning seat is provided with a second positioning surface that cooperates with the first positioning surface, the first positioning surface defines one of the first positioning portions, and the second positioning surface defines one of the second positioning portions; The first positioning surface is inclined, a rotating part is provided at the bottom of the positioning seat, and a rotating position for rotating in cooperation with the rotating part is provided on the support block; The mounting seat is provided with a first positioning hole, the positioning seat is provided with a second positioning hole that cooperates with the first positioning hole for positioning, the first positioning hole defines one of the first positioning portions, the second positioning hole defines one of the second positioning portions, and a positioning member is connected between the first positioning hole and the second positioning hole; The base is provided with a second through slot penetrating the base, the positioning seat is provided with a first connecting hole adapted to the second through slot, a rotating shaft is installed between the second through slot and the first connecting hole, and the positioning seat is rotatably connected to the base around the rotating shaft; The base is provided with a third through slot penetrating the base, the positioning seat is provided with a second connecting hole corresponding to the third through slot, the cross section of the third through slot is in the shape of an arc with the rotation axis of the positioning seat as the center, and a fastener is installed between the third through slot and the second connecting hole; The clamping position is provided with a first through slot that passes through the upper and lower ends of the positioning seat, and the processing method comprises the following steps: Clamping the part to be processed to the clamping position of the positioning seat; A through hole is opened in the middle of the area to be processed on the part, a molybdenum wire is passed through the through hole and the first through slot in sequence, the first positioning hole and the second positioning hole are connected by a positioning piece to define the relative position of the mounting seat and the positioning seat, the position of the positioning seat is locked by tightening the fastener, and the positioning seat is locked to a processing position, and a straight groove is processed on the part by the molybdenum wire; Rotate the positioning seat and lock it to another processing position, loosen the fastener, rotate the positioning seat so that the second positioning surface at the bottom of the positioning seat abuts against the first positioning surface of the support block, tighten the fastener to lock the position of the positioning seat, and use molybdenum wire to process a chamfer on one side of the straight groove.

2. The method for processing a chamfered closed groove according to claim 1, characterized in that: It comprises two first positioning surfaces and two second positioning surfaces corresponding to the first positioning surfaces one by one, and the two first positioning surfaces are respectively arranged on both sides of the rotation position.

3. The method for processing a chamfered closed groove according to claim 2, characterized in that: The two first positioning surfaces are symmetrically distributed on both sides of the rotation position.

4. The method for processing a chamfered closed groove according to claim 2, characterized in that: The rotating position is a slot that runs through the top surface of the supporting block.

5. The method for processing a chamfered closed groove according to claim 1, characterized in that: The positioning seat is provided with a first through slot which runs through the upper and lower ends thereof and is in communication with the clamping position.

6. The method for processing a chamfered closed groove according to claim 1, characterized in that: The positioning seat includes a supporting surface for supporting the part to be processed, a support plate is arranged at the lower end of the supporting surface, pressure plates are arranged on both sides of the supporting surface, and the clamping position is defined by the supporting surface, the two pressure plates and the support plate.

7. The method for processing a chamfered closed groove according to claim 1, characterized in that: The clamping position is provided with a mounting hole, and a magnet for adsorbing the part to be processed is arranged in the mounting hole.

Images