Clamping tool for machining thin-wall diffuser

Abstract

The utility model discloses a clamping tool for machining a thin-wall diffuser, which belongs to the technical field of diffuser machining and comprises fixtures oppositely arranged on two sides of a workpiece, each fixture comprises a mounting block arranged on a machine tool body, a clamping block is arranged on the mounting block facing the side of the workpiece, and the clamping blocks are arranged on the mounting block facing the side of the workpiece. The end faces, making contact with each other, of the clamping block and the installation block are each of an inclined plane structure, clamping force on a workpiece is provided for the clamping block, the clamping block is connected with the installation block and the lathe bed through a fastener, the section of a clamping part of the clamping block is a wedge-shaped section, and the small-diameter end of the clamping part abuts against the side wall of the workpiece. The clamping device has the capability of being tightly attached to a workpiece, so that stable and effective clamping force is provided, the clamping requirement of the cutting removal amount can be met to the maximum extent, continuity and high efficiency of the machining process are guaranteed, and the interference phenomenon possibly occurring in the machining process is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of diffuser processing, and in particular relates to a clamping tool for processing a thin-wall diffuser. Background Art

[0002] The diffuser is the main component of the centrifugal air compressor and is installed around the impeller of the compressor. The diffuser includes a diffuser disc, which is the base of the diffuser and is installed in the gear cavity of the air compressor. The end face opposite to the air inlet is the air guide end face. The diffuser disc has a central circular hole. The air guide end face of the diffuser disc is evenly distributed with a number of diffuser blades, and a diffuser air duct is formed between adjacent diffuser blades.

[0003] The area-to-thickness ratio of a thin-walled diffuser is very large. The difficulty in processing is that the blank must be firm and not loose when clamped, and the fixture must not interfere with the tool path. Therefore, it is easy to deform during the fixing process. At the same time, due to the large amount of cutting removal during the processing, processing stress is easy to occur, which leads to deformation of the workpiece. In severe cases, the workpiece may even be directly scrapped. If the amount of cutting each time is reduced and the processing speed is slowed down, the processing efficiency will be seriously affected. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a clamping tool for processing thin-wall diffusers, which not only has the ability to fit the workpiece tightly, thereby providing a stable and effective clamping force, but also can meet the clamping requirements of the cutting removal amount to the greatest extent, ensure the continuity and efficiency of the processing process, and effectively prevent interference that may occur during the processing.

[0005] The utility model is implemented as follows: a clamping tool for processing a thin-wall diffuser comprises clamps relatively arranged on two sides of a workpiece, the clamps comprising a mounting block arranged on a bed of a processing machine tool, a clamping block is arranged on the mounting block facing the workpiece side, the end surfaces of the clamping block and the mounting block in contact are both inclined structures, which provide a clamping force for the workpiece for the clamping block, the clamping block is connected to the mounting block and the bed by fasteners, the cross-section of the clamping portion of the clamping block is a wedge-shaped cross-section, and the small-diameter end of the clamping portion abuts against the side wall of the workpiece.

[0006] Furthermore, the clamping portion is provided with an arc groove, which can effectively prevent interference between the tool and the fixture during processing, ensure smooth operation of the tool during processing, avoid unnecessary collision and friction, make the processing process safer and more controllable, and thus extend the service life of the tool and the fixture.

[0007] Furthermore, the thickness of the workpiece is H, and the thickness of the small diameter end of the clamping block is d, 1 / 3H≤d≤1 / 2H. This not only ensures that the clamping block can closely fit the workpiece to provide sufficient clamping force, effectively prevents the workpiece from shifting or shaking during processing, and ensures processing accuracy and stability, but also can meet the clamping requirements of the cutting removal amount to the maximum extent, ensuring processing efficiency.

[0008] Furthermore, a mounting portion is provided on the mounting block away from the wedge-shaped end surface, and the mounting portion is connected to the bed of the processing machine tool through bolts.

[0009] Furthermore, a connecting screw hole for a fastener to penetrate is vertically provided at the contact position between the clamping block and the mounting block.

[0010] The utility model has the advantages and technical effects: due to the adoption of the above technical solution, it not only has the ability to fit the workpiece tightly, thereby providing a stable and effective clamping force, but also can meet the clamping requirements of the cutting removal amount to the greatest extent, ensure the continuity and efficiency of the processing process, effectively prevent the interference phenomenon that may occur during the processing process, thereby ensuring the processing quality and operation safety. While improving the processing efficiency, it also enhances the stability and safety of the processing process.

[0011] The balance point between processing efficiency and deformation is weighed. Even if the processing stress produces some elastic deformation, it can be released after standing still to meet the parameters of the finished part such as flatness, parallelism, and verticality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the clamp provided in the embodiment of the utility model.

[0014] In the figure: 1, workpiece; 2, fixture; 3, mounting block; 3-1, mounting portion; 4, clamping block; 4-1, clamping portion; 4-2, arc groove; 5, inclined surface structure; 6, fastener. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0016] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0017] like Figure 1 and Figure 2 As shown, the present application provides a fixture for processing a thin-wall diffuser, including a fixture 2 relatively arranged on both sides of a workpiece 1, the fixture 2 including a mounting block 3 arranged on a machine bed, specifically, a mounting portion 3-1 is arranged on the mounting block 3 away from the wedge-shaped end surface, and the mounting portion 3-1 is connected to the machine bed through bolts. A clamping block 4 is arranged on the mounting block 3 facing the workpiece 1, and the end surfaces of the clamping block 4 and the mounting block 3 in contact are both inclined structures 5, and the clamping block 4 provides a clamping force for the workpiece 1, and the clamping block 4 is connected to the mounting block 3 and the bed through a fastener 6, specifically, the fastener 6 is a bolt, and a connecting screw hole for the fastener 6 to penetrate is arranged vertically at the contact position between the clamping block 4 and the mounting block 3.

[0018] The clamping block 4 is arranged on the inclined surface of the mounting block 3, and is subjected to the weight of the clamping block 4 itself, so that the clamping block 4 exerts a pressing force on the workpiece 1 to achieve effective clamping. In addition, during the tightening process of the fastener 6, a downward pressure is provided to the clamping block 4, so that the clamping block 4 further presses the workpiece 1.

[0019] The cross section of the clamping portion 4-1 of the clamping block 4 is a wedge-shaped cross section, and the small diameter end of the clamping portion 4-1 abuts against the side wall of the workpiece 1. Preferably, the thickness of the workpiece 1 is H, and the thickness of the small diameter end of the clamping block 4 is d, 1 / 3H≤d≤1 / 2H. This not only ensures that the clamping block 4 can fit the workpiece 1 tightly and provide sufficient clamping force, effectively preventing the workpiece 1 from shifting or shaking during the processing, ensuring the processing accuracy and stability, but also can meet the clamping requirements of the cutting removal amount to the maximum extent, ensuring the processing efficiency.

[0020] Furthermore, the clamping portion 4-1 is provided with an arc groove 4-2. The arc groove 4-2 can effectively prevent the tool from interfering with the fixture 2 during the processing, ensure the tool operates smoothly during the processing, avoid unnecessary collision and friction, make the processing safer and more controllable, and thus extend the service life of the tool and the fixture 2.

[0021] Due to the adoption of the above technical solution, it not only has the ability to closely fit the workpiece 1, thereby providing a stable and effective clamping force, but also can meet the clamping requirements of the cutting removal amount to the greatest extent, ensure the continuity and efficiency of the processing process, effectively prevent the interference phenomenon that may occur during the processing process, thereby ensuring the processing quality and operation safety. While improving the processing efficiency, it also enhances the stability and safety of the processing process.

[0022] The balance point between processing efficiency and deformation is weighed. Even if the processing stress produces some elastic deformation, it can be released after standing still to meet the parameters of the finished part such as flatness, parallelism, and verticality.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping tool for processing a thin-wall diffuser, characterized in that: It includes fixtures relatively arranged on both sides of the workpiece, the fixture includes a mounting block arranged on the bed of a processing machine tool, a clamping block is arranged on the mounting block facing the workpiece, the end surfaces of the clamping block and the mounting block in contact are both inclined structures, which provide the clamping block with a clamping force on the workpiece, the clamping block is connected to the mounting block and the bed through fasteners, the cross-section of the clamping part of the clamping block is a wedge-shaped cross-section, and the small diameter end of the clamping part abuts against the side wall of the workpiece.

2. The clamping tool for processing a thin-wall diffuser according to claim 1, characterized in that: The clamping portion is provided with an arc-shaped groove.

3. The clamping tool for processing a thin-wall diffuser according to claim 1 or 2, characterized in that: The thickness of the workpiece is H, the thickness of the small diameter end of the clamping block is d, and 1 / 3H≤d≤1 / 2H.

4. The clamping tool for processing a thin-wall diffuser according to claim 1, characterized in that: A mounting portion is arranged on the mounting block away from the wedge-shaped end surface, and the mounting portion is connected to the bed of the processing machine tool through bolts.

5. The clamping tool for processing a thin-wall diffuser according to claim 1, characterized in that: A connecting screw hole for a fastener to penetrate is vertically provided at the contact position between the clamping block and the mounting block.

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