Linear cutting radial machining clamp

Abstract

A linear cutting radial machining clamp relates to a linear cutting radial machining clamp technology, is mainly applied to the field of annular workpiece machining, is simple to operate, is convenient to operate and accurate in positioning in batch production of multi-angle machining of workpieces, realizes one-time clamping to complete multi-angle machining, and avoids errors caused by multiple times of clamping. The machining precision and the surface smoothness of workpieces are guaranteed, the stability of the size and tolerance of the workpieces is guaranteed, the percent of pass of the workpieces is improved, the workpieces can be preassembled outside a machine due to the portability of the fine positioning mounting seat, the time for an operator to clamp and debug on equipment is saved, the machining time is saved, and the utilization rate and the efficiency of the equipment are improved; a plurality of reference tables are arranged on the multi-angle 3R reference base, multi-angle same-program machining of batch workpieces is met, full-load machining of multi-angle stations is achieved, and machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wire EDM technology and relates to wire EDM radial machining fixture technology. It is mainly applied to the field of ring workpiece machining, and is especially suitable for precision workpieces that require multi-angle machining and mass production. Background Technology

[0002] Wire EDM can process various shapes and is widely used in the machining industry. Currently, when machining the radial shape of a ring-shaped workpiece using wire EDM, the machining fixture is a technical challenge. Improper clamping can damage the workpiece and make it difficult for the operator to install and correct it, thus prolonging the processing time. When the workpiece needs to be machined at multiple angles, multiple clamping can cause errors and leave wire marks on the workpiece surface, affecting the workpiece's accuracy and surface finish. When the workpiece needs to be mass-produced, multi-angle machining is unstable and the accuracy is difficult to guarantee. Especially for thin-walled ring-shaped workpieces, conventional multiple clamping can cause workpiece deformation during the clamping process, resulting in workpiece dimensional deviations and increasing the workpiece defect rate.

[0003] Existing technology CN210115540U relates to a wire EDM fixture for thin-walled tubes with changing angles. The application date was March 20, 2019. It discloses existing machining technology for thin-walled round tubes. This technology can solve the problem of fixing thin-walled workpieces and allows for convenient and rapid rotation and positioning of the workpiece according to actual needs. However, this technology can only process a single thin-walled round tube, and the clamping process is complex, making it impossible to process multiple products simultaneously in batches. Summary of the Invention

[0004] The purpose of this invention is to provide a wire EDM radial machining fixture that overcomes the technical difficulties of cumbersome clamping procedures and large errors caused by multiple clamping operations during mass production of ring-shaped workpieces using conventional techniques. This fixture ensures the machining accuracy and surface finish of the ring-shaped workpieces, as well as the stability of the workpiece dimensions and performance.

[0005] In view of the problems existing in the above-described background technology, this utility model proposes a wire EDM radial machining fixture to overcome the above deficiencies, enabling batch workpieces to complete the machining of multi-angle radial shapes in a single clamping, improving equipment processing efficiency, simplifying operation, achieving high machining accuracy, and reducing scrap rate. By setting the height of the positioning pins, multi-angle machining of workpieces of various heights can be achieved. By applying a controllable and constant clamping force to the pressure plate, the machining error caused by pressure changes during workpiece processing is solved.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a wire EDM radial machining fixture, the structure of which includes: a multi-angle 3R reference base 1, a precision positioning 3R base plate 2, a workpiece 3, a pin 4, a precision positioning mounting base 5, a control pressure plate 6, and an angle correction reference block 7; the connection relationship of the wire EDM radial machining fixture is as follows: the multi-angle 3R reference base 1 and the precision positioning 3R base plate 2 are in surface contact and positioned by jaws to prevent rotation; the precision positioning mounting base 5 and the precision positioning 3R base plate 2 are in surface contact and positioned by pins 4 and locked and fixed by bolts; the workpiece 3 and the precision positioning mounting base 5 are in surface contact and sliding fit; the control pressure plate 6 and the workpiece 3 are in surface contact and tightly fit; the control pressure plate 6 and the precision positioning mounting base 5 are in surface contact and tightly fit and locked and fixed by bolts; the angle correction reference block 7 and the multi-angle 3R reference base 1 are in surface contact and tightly fit; the angle correction reference block 7 and the precision positioning 3R base plate 2 ... 1. The contact surface is positioned and prevented from rotating by the chuck. The angle correction reference block 7 is installed during the correction before the workpiece 3 is processed. The multi-angle 3R reference base 1 is provided with a reference platform. The number of reference platforms is equal to the number of workstations of the parts to be processed. The precision positioning mounting base 5 is provided with a precision positioning mounting table. The number of precision positioning mounting tables is consistent with the number of workpieces 3 to be processed in batches. The precision positioning mounting table is cylindrical. The outer diameter of the precision positioning mounting table is consistent with the inner diameter of the workpiece 3 and the height is consistent with the height of the workpiece 3. The precision positioning mounting table is radially provided with clearance for the shape of the workpiece 3 that needs to be radially processed. The clearance ensures strength and prevents overcutting. The angle correction reference block 7 is provided with a correction angle surface. The correction angle surface is consistent with the angle of the workpiece 3 that needs to be rotated for processing.

[0007] The number of workstations for processing parts is set to the number of times the same workpiece 3 is processed at different angles, or the number of times different workpieces 3 are processed at different angles.

[0008] The workpiece 3 can be set to be the same workpiece or to be a different workpiece.

[0009] The control plate 6 is cylindrical, and its outer diameter is smaller than that of the workpiece 3, while its outer diameter is larger than that of the precision positioning mounting table set on the precision positioning mounting base 5.

[0010] The precision positioning mounting base 5 is provided with a reference point indicator, and the multi-angle 3R reference base 1 is provided with an angle indicator. When the precision positioning mounting base 5 and the precision positioning 3R base plate 2 are assembled, the reference point indicator on the precision positioning mounting base 5 corresponds to the angle indicator on the multi-angle 3R reference base 1 to prevent errors.

[0011] The processing order of the reference platforms set on the multi-angle 3R reference base 1 is not important. The precision positioning mounting base 5 is easy to disassemble and can be pre-installed outside the machine. The number of precision positioning mounting bases 5 is greater than or equal to the number of reference platforms set on the multi-angle 3R reference base 1, so as to realize the full-load processing of each reference platform of the multi-angle 3R reference base 1.

[0012] The utility model discloses the beneficial effect is: through using the wire cutting radial machining clamp on the on -line cutting equipment, simple operation is convenient and accurate positioning in the batch production of workpiece multi -angle machining, realizes once clamping completes multi -angle machining, avoids the error caused by multiple clamping, guarantees the machining accuracy and surface finish of workpiece, guarantees the stability of workpiece size and tolerance, improves workpiece qualification rate, the portability of accurate positioning mounting seat can realize the machine pre -loading of workpiece, has saved the time of operator on the equipment clamping and debugging, has saved the processing time, has improved the equipment's utilization rate and efficiency, multiple angle 3R datum seat is provided with multiple datum platform, satisfies batch workpiece multi -angle same program processing, realizes the full -load processing of multi -angle station, improves processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] The following will be combined with the drawings, and the embodiment will be specifically explained.

[0014] Figure 1 It is a kind of wire cutting radial machining clamp's parts explosion schematic diagram.

[0015] Figure 2 It is a kind of wire cutting radial machining clamp's perspective view.

[0016] Figure 3 It is a kind of wire cutting radial machining clamp's assembly drawing.

[0017] Figure 4 It is a kind of wire cutting radial machining clamp's angle correction datum block 7 use schematic diagram.

[0018] Figure 5 It is a kind of wire cutting radial machining clamp's multiple angle 3R datum seat 1 schematic diagram.

[0019] Figure 6 It is a kind of wire cutting radial machining clamp in accurate positioning 3R bottom piece 2, accurate positioning mounting seat 5 and control pressing plate 6 subassembly drawing.

[0020] Figure 7 It is a kind of wire cutting radial machining clamp's accurate positioning mounting seat 5 schematic diagram.

[0021] Figure 8 is a kind of wire cutting radial machining clamp's control pressing plate 6 schematic diagram.

[0022] In the figure, 1 multiple angle 3R datum seat;2 accurate positioning 3R bottom piece;3 workpiece;4 pin;5 accurate positioning mounting seat;6 control pressing plate;7 angle correction datum block. DETAILED DESCRIPTION

[0023] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced without other different ways from the description, the person skilled in the art can make similar generalization without departing from the connotation of the present application, therefore, the present application is not limited by the specific embodiments disclosed below. The present application is described in detail in conjunction with the schematic diagram, the schematic diagram is only an example when the embodiments of the present application are described in detail, which should not limit the scope of protection of the present application. It should be noted that in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] The specific embodiments of the present application are described in detail below in conjunction with the technical text and the drawings.

[0025] The assembly of a linear cutting radial machining clamp: the pin 4 is matched in the machined pin hole of the fine positioning mounting seat 5, the fine positioning mounting seat 5 and the pin 4 are matched with the fine positioning 3R base plate 2 as a whole by the pin limiting, the bolt passes through the fine positioning 3R base plate 2 to lock and fix it with the fine positioning mounting seat 5, the workpiece 3 is a ring-shaped workpiece and needs to be machined in multiple sizes in the radial direction, three angles are needed to be set to machine the radial through slot of the workpiece 3, according to the batch yield of the workpiece 3, seven fine positioning mounting tables are arranged on the fine positioning mounting seat 5, arranged in three rows, each fine positioning mounting table is provided with a let go (see Figure 7 ), the inner diameter of the workpiece 3 is matched with the fine positioning mounting table arranged on the fine positioning mounting seat 5, the number of control pressure plates 6 is equal to the number of fine positioning mounting tables on the fine positioning mounting seat 5, the control pressure plate 6 is matched on the fine positioning mounting table arranged on the fine positioning mounting seat 5, and is in contact with and limited by the workpiece 3, the bolt is locked on the control pressure plate 6 by the digital display torque wrench (see Figure 6 ), the multi-angle 3R reference seat 1 is matched and fixed with the linear cutting machine tool, the angle correction reference block 7 is used to correct different workstations before the fine positioning mounting seat 5 and the fine positioning 3R base plate 2 are combined and installed (see Figure 4 ), the fine positioning mounting seat 5 and the fine positioning 3R base plate 2 are combined and arranged with more than four, realizing the off-machine pre-assembly of the workpiece 3.

[0026] The implementation of a linear cutting radial machining clamp: three groups of fine positioning mounting seats 5 matched with the workpiece 3 and the disassembled group of the fine positioning 3R base plate 2 (see Figure 6 ) are respectively installed on the multi-angle 3R reference seat 1, and the batch workpieces 3 in three directions can be clamped once to cut in the same program (see Figure 1 、 2, 3), when the first cutting is finished, the positions of the three sets of fine positioning mounting seats 5 and the fine positioning 3R bottom plate 2 are exchanged, without the need for re-correction, the next processing can be carried out, the repeated setting program does not need to be re-exchanged, a large number of operations and equipment standby time of the traditional mode are saved, and the workpiece is in a controllable and constant pressing state during the cutting processing. Since the outer diameter of the fine positioning mounting table provided on the fine positioning mounting seat 5 is consistent with the inner diameter of the workpiece 3 and the height of the fine positioning mounting table is consistent with the height of the workpiece 3, the positioning pressure of the workpiece 3 is effectively controlled by the force of the digital display torque wrench on the bolt, so that the pressing force during the processing of each workpiece 3 in batch production can be kept constant, so that the workpiece 3 is not deformed during the processing, and the workpiece 3 is not deformed after being taken off from the jig after cutting. After the three angles of each set of workpieces 3 are processed, the workpieces 3 can be unloaded from the fine positioning mounting seat 5 and the fine positioning 3R bottom plate 2 and the processing is completed.

[0027] During the implementation process, a wire cutting radial machining clamp can realize batch production of the same workpiece, and the same workpiece 3 can be processed at different angles by adjusting the reference table provided on the multi-angle 3R reference seat 1 and the fine positioning mounting table provided on the fine positioning mounting seat 5.

[0028] During the implementation process, a wire cutting radial machining clamp can realize batch production of different workpieces, and different workpieces 3 can be processed at different angles by adjusting the multiple reference tables provided on the multi-angle 3R reference seat 1 and the fine positioning mounting table provided on the fine positioning mounting seat 5.

[0029] During the implementation process, according to different conditions of the workpiece 3, the reference table provided on the multi-angle 3R reference seat 1 can be provided on the multi-angle 3R reference seat 1 body, or the reference table can be made into an insert form and used as a whole after being matched with the multi-angle 3R reference seat 1 body. The fine positioning mounting table provided on the fine positioning mounting seat 5 can be provided on the fine positioning mounting seat 5 body, or the fine positioning mounting table can be made into an insert form and used as a whole after being matched with the fine positioning mounting seat 5 body.

[0030] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present disclosure.

[0031] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should also be considered as the protection scope of the present application.

Claims

1. A wire saw radial machining fixture, characterized in that The structure comprises: multi-angle 3R reference seat (1), fine positioning 3R film (2), workpiece (3), pin (4), fine positioning mounting seat (5), control pressing plate (6), angle correction reference block (7); the connection relationship is that: multi-angle 3R reference seat (1) and fine positioning 3R film (2) are in surface contact and are positioned and prevented from rotating by clamping jaw, fine positioning mounting seat (5) and fine positioning 3R film (2) are in surface contact and are positioned by pin (4) and locked and fixed by bolt, workpiece (3) and fine positioning mounting seat (5) are in surface contact and are slidingly matched, control pressing plate (6) and workpiece (3) are in surface contact and are tightly matched, control pressing plate (6) and fine positioning mounting seat (5) are in surface contact and are tightly matched and locked and fixed by bolt, angle correction reference block (7) and multi-angle 3R reference seat (1) are in surface contact and are positioned and prevented from rotating by clamping jaw, and the angle correction reference block (7) is installed when correction before workpiece (3) processing; the reference table is arranged on the multi-angle 3R reference seat (1), the number of the reference table is equal to the number of parts workstations needing to be processed; the fine positioning mounting seat (5) is provided with a fine positioning mounting table, the number of the fine positioning mounting table is consistent with the number of workpieces (3) in batch processing, the fine positioning mounting table is cylindrical, the outer diameter of the fine positioning mounting table is consistent with the inner diameter of the workpiece (3) and the height is consistent with the height of the workpiece (3), the fine positioning mounting table is provided with a recess for the shape of the workpiece (3) needing to be processed in the radial direction, and the recess ensures the strength and prevents overcutting; the angle correction reference block (7) is provided with a correction angle surface, and the correction angle surface is consistent with the angle of the workpiece (3) needing to be processed.

2. A wire electro-erosion radial machining fixture according to claim 1, characterized in that: The number of the parts workstations is set as the number of times of processing different angles of the same workpiece (3) or the number of times of processing different angles of different workpieces (3).

3. A wire electro-discharge radial machining fixture according to claim 1, wherein: The workpiece (3) is set as the same workpiece or different workpieces.

4. A wire electro-discharge radial machining fixture according to claim 1, wherein: The control pressing plate (6) is cylindrical, the outer diameter of the control pressing plate (6) is smaller than the outer diameter of the workpiece (3), and the outer diameter of the control pressing plate (6) is greater than the outer diameter of the fine positioning mounting table arranged on the fine positioning mounting seat (5).

5. A wire electro-discharge radial machining fixture according to claim 1, wherein: The fine positioning mounting seat (5) is provided with a reference point indicating mark, the multi-angle 3R reference seat (1) is provided with an angle indicating mark, and when the fine positioning mounting seat (5) and the fine positioning 3R film (2) are combined, the reference point indicating mark arranged on the fine positioning mounting seat (5) corresponds to the angle indicating mark arranged on the multi-angle 3R reference seat (1) and prevents error.

6. A wire electro-discharge radial machining fixture according to claim 1, wherein: The processing sequence of each reference table arranged on the multi-angle 3R reference seat (1) is not in sequence, the fine positioning mounting seat (5) is detachable and can be preassembled outside the machine, the number of the fine positioning mounting seat (5) is greater than or equal to the number of the reference tables arranged on the multi-angle 3R reference seat (1), and full-load processing of each reference table of the multi-angle 3R reference seat (1) is realized.

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