Workpiece machining jig

Abstract

The utility model belongs to the technical field of workpiece machining, and particularly relates to a workpiece machining jig which comprises a jig body, a vacuumizing part, a supporting part and a positioning part, the vacuumizing part is provided with a plurality of adsorption areas, and any adsorption area is used for adsorbing a fixing face corresponding to the adsorption area; the supporting part comprises a profiling supporting structure, and the profiling supporting structure and the fixed surface are subjected to profiling, so that the fixed surface is attached to the corresponding adsorption area; according to the shape of the fixed face of the to-be-machined workpiece, the to-be-machined workpiece is placed on the corresponding supporting part, the fixed face is adsorbed and fixed through the vacuumizing part, after one to-be-machined face of the workpiece is machined, the other to-be-machined workpiece is placed on the corresponding supporting part, and positioning of the other to-be-machined face can be completed. Compared with traditional mechanical clamping, the machining jig has the advantages that the operation complexity is reduced, so that the machining efficiency of different to-be-machined surfaces of the workpiece can be improved, and the machining precision of the to-be-machined workpiece can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and in particular to a workpiece processing fixture. Background Technology

[0002] In CNC machining, especially for workpieces with complex shapes or thin walls, the uneven surface of the workpiece often necessitates mechanical clamping to hold and fix it for machining. However, traditional mechanical clamping methods can easily lead to workpiece deformation, surface damage, or machining errors. Furthermore, when machining both sides of the workpiece, frequent clamping and flipping not only increases operational complexity but can also affect machining accuracy and production efficiency.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a workpiece processing fixture to improve the processing efficiency of different surfaces of a workpiece.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A workpiece processing fixture for fixing a workpiece to be processed, wherein the side surface of the workpiece to be processed is divided into a surface to be processed and a fixing surface, comprising:

[0007] Fixture body;

[0008] The vacuum unit has multiple adsorption areas disposed on the fixture body, and each of the adsorption areas is used to adsorb the corresponding fixing surface;

[0009] The support portion includes a contoured support structure correspondingly disposed in the adsorption area, and the contoured support structure is contoured to the fixing surface so that the fixing surface fits into the corresponding adsorption area;

[0010] A positioning part is disposed between the contour support structure and the fixed surface to position the fixed surface and the contour support structure.

[0011] Preferably, the vacuum pumping unit includes:

[0012] The vacuum groove is disposed in the adsorption area and faces the fixed surface, and the fixed surface can cover the vacuum groove so that the vacuum groove and the fixed surface form a vacuum cavity.

[0013] An air extraction pipe is installed inside the fixture body, with one end of the air extraction pipe connected to the vacuum chamber and the other end connected to an external air extraction component.

[0014] Preferably, the contour support structure includes a plurality of support platforms, which are disposed in the vacuum groove and can abut against the flat part of the fixing surface so that the fixing surface fits against the top of the vacuum groove.

[0015] Preferably, the vacuum groove is disposed on the fixture body.

[0016] Preferably, a gas channel is formed between two adjacent support platforms, and / or between the support platform and the wall of the vacuum tank.

[0017] Preferably, the support portion further includes a plurality of support blocks, the support blocks being detachably disposed on the fixture body, and the vacuum groove being disposed on the top of the support blocks.

[0018] Preferably, the vacuuming unit further includes a sealing groove and a sealing element, the sealing groove being arranged around the vacuum groove, and the sealing element being pressed between the sealing groove and the fixing surface.

[0019] Preferably, the extraction pipeline includes a main gas path, a valve, and multiple branch gas paths. One end of each branch gas path is connected to a different vacuum chamber, and the other end is connected to the main gas path. The valve is located between the multiple branch gas paths of the main gas path and is used to control the opening and closing of any one of the branch gas paths.

[0020] Preferably, the vacuum tank and / or support platform are provided with a plurality of clearance holes, which are directly opposite the protruding part of the fixed surface.

[0021] Preferably, the positioning part includes a positioning pin disposed on the support part and a positioning hole disposed on the workpiece, wherein the positioning pin is adapted to the positioning hole.

[0022] The beneficial effects of this utility model are:

[0023] This utility model discloses a workpiece processing fixture. Based on the shape of the fixed surface of the workpiece to be processed, the workpiece is placed on the corresponding support part, and the fixed surface is adsorbed and fixed by the vacuum part. During the placement process, the fixed surface and the support part are positioned by the positioning part to improve the positioning accuracy of the workpiece during CNC machining. After one surface of the workpiece is processed, the other surface is placed on the corresponding support part to complete the positioning of the other surface. Compared with traditional mechanical clamping, the operation complexity of this processing fixture is reduced, thereby improving the processing efficiency of different surfaces of the workpiece and ensuring the processing accuracy of the workpiece. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the workpiece processing fixture (with the workpiece fixed) in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the workpiece processing fixture (without a workpiece fixed) in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the vacuuming part and the support part in an embodiment of this utility model.

[0027] In the picture:

[0028] 100. Workpiece to be processed; 110. First side surface; 120. Second side surface;

[0029] 1. Fixture body;

[0030] 2. Vacuuming section; 21. Vacuum tank; 22. Gas extraction pipe; 23. Sealing tank; 24. Gas passage;

[0031] 3. Support section; 31. Contouring support structure; 311. Support platform; 32. Support block;

[0032] 4. Positioning part; 5. Clearance hole. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Please see Figure 1 This embodiment proposes a workpiece processing fixture for fixing a workpiece 100 to be processed. The workpiece 100 has multiple sides, all of which are divided into surfaces to be processed and fixed surfaces connected to the workpiece processing fixture. The aim is to eliminate the influence of traditional mechanical clamping on the workpiece 100 by adsorption and fixation. In this embodiment, a thin-walled workpiece 100 is used as an example. The thin-walled workpiece 100 includes a first side 110 and a second side 120, and the first side 110 and the second side 120 need to be processed sequentially. When processing the first side 110, the first side 110 is the surface to be processed, and the second side 120 is the fixed surface. Conversely, when processing the second side 120, the second side 120 is the surface to be processed, and the first side 110 is the fixed surface.

[0038] Please see Figure 2 and Figure 3 Specifically, the workpiece processing fixture includes a fixture body 1, a vacuuming section 2, a support section 3, and a positioning section 4. The vacuuming section 2 has multiple adsorption areas disposed on the fixture body 1, and each adsorption area is used to adsorb the corresponding fixed surface. The support section 3 includes a contoured support structure 31 disposed corresponding to the adsorption area, and the contoured support structure 31 is contoured to the fixed surface so that the fixed surface fits into the corresponding adsorption area. The positioning section 4 is disposed between the contoured support structure 31 and the fixed surface to position the fixed surface and the contoured support structure 31.

[0039] Understandably, based on the shape of the fixed surface of the workpiece 100 to be processed, the workpiece 100 is placed on the corresponding support part 3, and the fixed surface is adsorbed and fixed by the vacuum part 2. During the placement process, the fixed surface of the workpiece 100 is positioned between the fixed surface and the support part 3 by the positioning part 4, so as to improve the positioning accuracy of the workpiece 100 during the CNC machining process. After one of the surfaces to be processed of the workpiece 100 is processed, the other workpiece 100 is placed on the corresponding support part 3, and the positioning of the other surface to be processed can be completed. Compared with traditional mechanical clamping, the operation complexity of this machining fixture is reduced, thereby improving the processing efficiency of different surfaces to be processed of the workpiece 100, and also ensuring the processing accuracy of the workpiece 100.

[0040] It should be noted that, based on the number of surfaces to be processed in the workpiece 100, a corresponding number of adsorption areas and contour support structures 31 are selected, thereby enabling the processing fixture to meet the processing of different surfaces of the workpiece 100, and further improving the adaptability of the processing fixture.

[0041] In this embodiment, the vacuum unit 2 includes a vacuum groove 21 disposed in the adsorption area and an air extraction pipe 22. The vacuum groove 21 faces the fixed surface, and the fixed surface can cover the vacuum groove 21, so that the vacuum groove 21 and the fixed surface form a vacuum cavity. The air extraction pipe 22 is disposed inside the fixture body 1, and one end of the air extraction pipe 22 is connected to the vacuum cavity, and the other end is connected to an external air extraction component. It can be understood that when the workpiece 100 to be processed is placed in the adsorption area, the fixed surface can cover the vacuum groove 21, so that the fixed surface and the vacuum groove 21 can form a vacuum cavity. The air extraction component can adsorb the fixed surface through the air extraction pipe 22, thereby completing the fixation of the workpiece 100 to be processed.

[0042] In this embodiment, the contour support structure 31 includes a plurality of support platforms 311, which are disposed within the vacuum groove 21 and can abut against the flat parts of the fixing surface, so that the fixing surface fits against the top of the vacuum groove 21. It is understood that the fixing surface has an uneven structure. When the fixing surface seals the vacuum groove 21, the vacuum groove 21 can make way for the protruding parts of the fixing surface, and the support platforms 311 can abut against the relatively flat parts of the fixing surface, thereby providing support for the fixing surface and preventing damage to the workpiece 100 during processing.

[0043] It should be noted that different heights of support platforms 311 can be selected according to the concave and convex contours of the fixed surface. No specific restrictions are imposed here. The support surfaces of support platforms 311 of different heights can be assembled to form a contoured surface similar to the fixed surface.

[0044] For fixed surfaces with minimal unevenness, the vacuum groove 21 is provided on the fixture body 1 so that the workpiece 100 to be processed can be supported by the contour support structure 31.

[0045] For fixed surfaces with significant unevenness or protrusions, placing the vacuum groove 21 on the fixture body 1 could increase the overall thickness of the fixture body 1, thereby increasing its spatial footprint. Therefore, in this embodiment, the support portion 3 further includes several support blocks 32, which are detachably mounted on the fixture body 1, with the vacuum groove 21 positioned on top of each support block 32. It is understood that the support blocks 32 relatively increase the height of the support platform 311, thereby compensating for the gap between the fixed surface and the support platform 311, and ensuring the sealing of the vacuum chamber.

[0046] In addition, it should be noted that the support block 32 is detachably mounted on the fixture body 1 so that different heights and models of support blocks 32 can be adjusted according to different production needs, thereby further improving the applicability of the processing fixture.

[0047] In this embodiment, the extraction pipe 22 includes a main air path, valves, and multiple branch air paths. One end of each branch air path is connected to a different vacuum chamber 21, and the other end is connected to the main air path. The valve is located between the main air path and the multiple branch air paths and is used to control the on / off state of any branch air path. It is understood that the vacuum chamber 21 is provided with vacuum suction holes, which are connected to corresponding branch air paths. Under the action of the extraction component, air can be extracted from the corresponding vacuum chamber through the vacuum suction holes, thereby enabling the corresponding fixed surface to be adsorbed and fixed. The extraction component is preferably a vacuum pump.

[0048] It should be noted that when processing a single workpiece 100, one of the adsorption areas can adsorb the fixed surface of the workpiece 100, and the valve can block the branch air path corresponding to the other adsorption areas to ensure the adsorption force of the vacuum pump on the fixed surface. When processing a batch of workpieces 100, multiple workpieces 100 are placed in the corresponding adsorption areas according to different fixed surfaces, thereby improving the processing efficiency of the workpieces 100.

[0049] Furthermore, a gas channel 24 is formed between two adjacent support platforms 311, and / or between the support platform 311 and the wall of the vacuum chamber 21. This arrangement facilitates gas flow within the vacuum chamber, thereby further improving the processing efficiency of the workpiece 100.

[0050] Furthermore, the vacuum unit 2 also includes a sealing groove 23 and a sealing element. The sealing groove 23 is arranged around the vacuum groove 21, and the sealing element is pressed between the sealing groove 23 and the fixed surface. It can be understood that when the fixed surface is adsorbed by the vacuum unit 2, it can compress the sealing element, thereby further increasing the sealing performance of the vacuum chamber to ensure the safety performance of the workpiece 100 during the processing.

[0051] Depending on the 100 different types of workpieces to be processed, several protrusions are provided on the fixed surface. These protrusions may interfere with the bottom of the support platform 311 or the vacuum tank 21. Therefore, in this embodiment, several clearance holes 5 are provided on the vacuum tank 21 and / or the support platform 311, with the clearance holes 5 directly opposite the protrusions on the fixed surface. This arrangement can prevent the processing fixture from interfering with the protrusions, thereby further improving the applicability of the processing fixture.

[0052] In this embodiment, the positioning part 4 includes a positioning pin disposed on the support part 3 and a positioning hole disposed on the workpiece 100, the positioning pin and the positioning hole being adapted to each other. It can be understood that when installing the workpiece 100 to be processed, the positioning pin is first aligned with the positioning hole, and then the workpiece 100 to be processed is installed on the support part 3 through the positioning hole. Under the action of the vacuum part 2, the positioning of the workpiece 100 to be processed can be completed. This arrangement facilitates the installation of the workpiece 100 to be processed by the operator and also ensures the positioning accuracy of the workpiece 100 to be processed during the switching process between different adsorption areas.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A workpiece processing fixture for fixing a workpiece (100) to be processed, the workpiece (100) having multiple sides, all said sides being divided into a surface to be processed and a fixing surface connected to the workpiece processing fixture, characterized in that, The workpiece machining fixture includes: Fixture body (1); The vacuum unit (2) has multiple adsorption areas disposed on the fixture body (1), and each of the adsorption areas is used to adsorb the corresponding fixing surface; The support part (3) includes a contoured support structure (31) correspondingly disposed in the adsorption area, and the contoured support structure (31) is contoured to the fixing surface so that the fixing surface fits into the corresponding adsorption area; The positioning part (4) is disposed between the contour support structure (31) and the fixed surface to position the fixed surface and the contour support structure (31).

2. The workpiece machining fixture according to claim 1, characterized in that, The vacuum pumping unit (2) includes: The vacuum groove (21) disposed in the adsorption region is directly opposite the fixed surface, and the fixed surface can cover the vacuum groove (21) so that the vacuum groove (21) and the fixed surface form a vacuum cavity; An air extraction pipe (22) is disposed inside the fixture body (1), and one end of the air extraction pipe (22) is connected to the vacuum chamber, and the other end is connected to an external air extraction component.

3. The workpiece machining fixture according to claim 2, characterized in that, The contour support structure (31) includes a plurality of support platforms (311), which are disposed in the vacuum groove (21) and can abut against the flat part of the fixing surface so that the fixing surface fits against the top of the vacuum groove (21).

4. The workpiece machining fixture according to claim 3, characterized in that, The vacuum groove (21) is disposed on the fixture body (1).

5. The workpiece machining fixture according to claim 3, characterized in that, A gas channel (24) is formed between two adjacent support platforms (311) and / or between the support platform (311) and the wall of the vacuum tank (21).

6. The workpiece machining fixture according to claim 2, characterized in that, The support part (3) further includes a plurality of support blocks (32), the support blocks (32) are detachably disposed on the fixture body (1), and the vacuum groove (21) is disposed on the top of the support block (32).

7. The workpiece machining fixture according to claim 2, characterized in that, The vacuum unit (2) also includes a sealing groove (23) and a sealing element. The sealing groove (23) is arranged around the vacuum groove (21), and the sealing element is pressed between the sealing groove (23) and the fixed surface.

8. The workpiece machining fixture according to claim 2, characterized in that, The extraction pipe (22) includes a main air path, a valve and multiple branch air paths. One end of each branch air path is connected to a different vacuum tank (21), and the other end is connected to the main air path. The valve is located between the main air path and the multiple branch air paths and is used to control the opening and closing of any one of the branch air paths.

9. The workpiece machining fixture according to claim 2, characterized in that, The vacuum tank (21) and / or the support platform (311) are provided with a plurality of clearance holes (5), which are directly opposite to the protruding part of the fixed surface.

10. The workpiece machining fixture according to claim 1, characterized in that, The positioning part (4) includes a positioning pin disposed on the support part (3) and a positioning hole disposed on the workpiece (100), wherein the positioning pin is adapted to the positioning hole.

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