A lateral clamping device for thin-walled disc-shaped parts

Abstract

This utility model discloses a lateral clamping device for thin-walled disc-shaped parts, including a support base. The support base has mounting holes at its bottom for detachably fixing it to the base plate of a non-standard fixture using a first fixing bolt. A fixing block is located at the rear of the upper end of the support base. The front of the fixing block has an upwardly inclined first slope with a vertical fixing screw hole. A clamping block is located in front of the fixing block, and the rear of the clamping block has a downwardly inclined second slope with a vertical waist-shaped through hole. The front end of the clamping block is an abutment end. The second slope slides on the first slope. A clamping bolt is screwed into the fixing screw hole above the waist-shaped through hole. The clamping block slides along the first slope to clamp the side of the workpiece through the abutment end. This utility model adopts an inclined sliding fit structure, converting the inclined force into a lateral clamping force to achieve flexible clamping and avoid deformation caused by excessive local stress on the workpiece due to direct clamping.

Description

Technical Field

[0001] This utility model belongs to the technical field of clamps for thin-walled disc-shaped parts, and specifically relates to a lateral clamping device for thin-walled disc-shaped parts. Background Technology

[0002] In machining processes, thin-walled disc-shaped parts (such as turbine discs and flanges) are prone to deformation during clamping due to their small wall thickness and poor rigidity, which seriously affects machining accuracy and product qualification rate. Traditional clamping methods often use radial or axial clamping, which, especially under strong clamping forces, can easily cause uneven stress on the workpiece, resulting in deformation, vibration, and problems such as dimensional deviations and decreased surface quality.

[0003] Currently, the machining of most thin-walled disc-shaped parts relies on specialized fixtures with repeated clamping and adjustments, a process that is complex, inefficient, labor-intensive, and fails to effectively guarantee product consistency and precision stability. Especially when high-precision side machining is required, traditional fixtures lack effective control over lateral workpiece clamping, affecting machining quality and hindering the development of automated and efficient production. Therefore, designing a simple, easy-to-operate lateral clamping device that effectively prevents workpiece deformation has become a key technical requirement for improving the machining quality and efficiency of thin-walled disc-shaped parts. Utility Model Content

[0004] This invention addresses the technical problem of parameter non-compliance caused by clamping deformation in the machining of thin-walled disc-shaped parts by providing a lateral clamping device for such parts.

[0005] The technical solution adopted by this utility model is a lateral clamping device for thin-walled disc-shaped parts, including a material support base. The bottom of the material support base is provided with a mounting hole for detachably fixing the material support base to the base plate of a non-standard fixture by means of a first fixing bolt. A fixing block is provided at the rear of the upper end of the material support base. The front of the fixing block is provided with a first inclined surface that slopes upward. The first inclined surface is provided with a vertical fixing screw hole. A clamping block is provided in front of the fixing block. The rear of the clamping block is provided with a second inclined surface that slopes downward. The second inclined surface is provided with a waist-shaped through hole. The front end of the clamping block is an abutment end. The second inclined surface is slidably disposed on the first inclined surface. A clamping bolt is provided above the waist-shaped through hole for screwing and fixing screw hole. The clamping block slides along the first inclined surface to clamp the side of the workpiece through the abutment end.

[0006] Furthermore, the front of the clamping block is provided with a notch to avoid the tool path.

[0007] Furthermore, the upper part of the waist-shaped through hole is a waist-shaped recessed groove.

[0008] Furthermore, the upper rear part of the fixing block is recessed and has a step, on which a second fixing bolt is screwed to the material support seat.

[0009] Furthermore, the material support is a rectangular block.

[0010] This utility model provides a compact and reliable lateral clamping device for thin-walled disc-shaped parts, which has the following advantages:

[0011] 1. The inclined sliding fit structure is adopted, which converts the inclined force into the lateral clamping force to achieve flexible clamping and avoid the deformation caused by excessive local stress on the workpiece due to direct clamping.

[0012] 2. Precise positioning improves machining accuracy: With the pre-set positioning pins and support structure of non-standard fixtures, the workpiece can be precisely positioned, ensuring repeatability of positioning during clamping and improving machining consistency.

[0013] 3. The clamping block is connected to the bolt through the waist-shaped through hole, which has a certain adjustment range and can adapt to the clamping needs of disc-shaped workpieces of different sizes, making it highly versatile.

[0014] 4. The height of the material support can be changed to adapt to workpieces with different structures or wall thicknesses, thus expanding the applicability of the device.

[0015] 5. The device adopts a modular design, which can be quickly disassembled and assembled, facilitating maintenance, replacement and adjustment, and reducing operation and maintenance costs.

[0016] 6. The structure is reasonably designed, which simplifies the clamping process, reduces manual intervention, improves processing efficiency, and is suitable for mass production. Attached Figure Description

[0017] Figure 1 This is an exploded view of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is an installation diagram of this utility model;

[0020] Figure 4 This is a top view of the installation of this utility model;

[0021] Figure 5 This is a schematic diagram illustrating the use of this utility model.

[0022] In the figure: 1. Material support; 2. First fixing bolt; 3. Fixing block; 31. First inclined surface; 32. Fixing screw hole; 33. Step; 4. Second fixing bolt; 5. Clamping block; 51. Second inclined surface; 52. Waist-shaped through hole; 53. Abutment end; 6. Clamping bolt; 7. Non-standard fixture tooling; 71. Base plate; 8. Workpiece. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed description of a lateral clamping device for thin-walled disc-shaped parts.

[0024] like Figures 1-3 As shown, a lateral clamping device for thin-walled disc-shaped parts includes a support base 1. The bottom of the support base 1 has a mounting hole for detachably fixing the support base to the base plate 71 of a non-standard fixture 7 by means of a first fixing bolt 2. A fixing block 3 is provided at the rear of the upper end of the support base 1. The front of the fixing block 3 has a first inclined surface 31 that slopes upward, and a vertical fixing screw hole 32 is provided on the first inclined surface. A clamping block 5 is provided in front of the fixing block 3. The rear of the clamping block 5 has a second inclined surface 51 that slopes downward, and a waist-shaped through hole 52 is provided on the second inclined surface 51. The front end of the clamping block 5 is an abutment end 53. The second inclined surface 51 is slidably disposed on the first inclined surface 31. A clamping bolt 6 is provided above the waist-shaped through hole 52 to screw onto the fixing screw hole 32. The clamping block slides along the first inclined surface to clamp the side of the workpiece 8 through the abutment end 53.

[0025] In this embodiment, the material support 1 is a rectangular block with two mounting holes at the bottom. The base plate 71 of the non-standard fixture 7 has through holes, and the first fixing bolt 2 is an M16*40 bolt.

[0026] The upper rear part of the fixing block 3 is provided with a step 33, and a second fixing bolt 4 is provided on the step 33 to screw the material support 1. The second fixing bolt 4 is also an M16*40 bolt.

[0027] The clamping block 5 has a notch at the front to avoid the tool path, and the notch is arc-shaped. The upper part of the waist-shaped through hole 52 is a waist-shaped groove.

[0028] The clamping block 5 is slidably connected to the fixed block 3 to form a clamping mechanism. The clamping bolt 6 between the two uses an M10*40 bolt to provide clamping force for the workpiece 8.

[0029] like Figure 4 and Figure 5 As shown, during use, select a suitable height for the support base 1 according to the specific size and shape of the workpiece 8 to match the clamping requirements. Install the support base 1 on the base plate 71 of the non-standard fixture 7 using the first fixing bolt 2 to ensure stability and reliability.

[0030] Place the thin-walled disc-shaped workpiece 8 on the fixture, and use the positioning pins or locating posts in the non-standard fixture 7 to accurately position the workpiece 8. Adjust the position of the clamping block 5 so that its second inclined surface 51 slides into contact with the first inclined surface 31 of the fixing block 3; tighten the clamping bolt 6 so that the clamping block 5 slides forward along the first inclined surface 31, and the abutting end 53 gradually presses against the side of the workpiece 8 to complete the lateral clamping; after clamping, check the clamping status to ensure that the workpiece 8 has no displacement, is firmly clamped, and does not deform.

[0031] Afterwards, start the machining equipment and perform cutting and other processing operations. The notch of clamping block 5 can prevent interference with the tool. After machining is completed, loosen the clamping bolt 6 and the clamping block 5; after disassembling the workpiece, the height of the support seat 1 or the position of the clamping block 5 can be adjusted according to the size of the next workpiece 8.

[0032] This utility model's lateral clamping device is symmetrically installed on both sides of the center of the lower part of the non-standard fixture 7. It allows for the replacement of workpiece supports 1 of different heights to accommodate workpieces of different shapes and sizes, thus having a wide range of applications. Using this auxiliary clamping device, the pre-positioning pins on the non-standard fixture 7 guide the workpiece to the designated position quickly, simplifying the positioning process and improving positioning accuracy, making the machining process more stable and reliable. Simultaneously, it features a simple structure, stable performance, low cost, effectively reducing labor intensity, easy operation, and improved work efficiency. The clamping and positioning structure of this device solves the problem of deformation caused by clamping force, ensuring that machining parameters are within the standard range.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A lateral clamping device for thin-walled disc-shaped parts, characterized in that, The support includes a material support (1), which has mounting holes at the bottom for detachably fixing the material support (1) to the base plate (71) of the non-standard fixture (7) by means of a first fixing bolt (2). A fixing block (3) is provided at the rear of the upper end of the material support (1). The front of the fixing block (3) has a first inclined surface (31) that slopes upward. The first inclined surface (31) has vertical fixing screw holes (32). A clamping block (5) is provided in front of the fixing block (3) for clamping. The rear part of the block (5) is provided with a second inclined surface (51) that slopes downward. A waist-shaped through hole (52) is provided vertically on the second inclined surface (51). The front end of the clamping block (5) is the abutment end (53). The second inclined surface (51) is slidably set on the first inclined surface (31). A clamping bolt (6) is provided above the waist-shaped through hole (52) to be screwed into the screw hole (32). The clamping block (5) slides along the first inclined surface (31) to clamp the side of the workpiece (8) through the abutment end (53).

2. A lateral clamping device for thin-walled disc-like parts according to claim 1, characterized in that The clamping block (5) has a notch at the front to avoid the tool path.

3. The lateral clamping device for thin-walled disc-shaped parts according to claim 1, characterized in that, The upper part of the waist-shaped through hole (52) is a waist-shaped recessed groove.

4. The lateral clamping device for thin-walled disc-shaped parts according to claim 1, characterized in that, The upper rear part of the fixed block (3) is provided with a step (33), and a second fixing bolt (4) is provided on the step (33) to connect the material support (1).

5. A lateral clamping device for thin-walled disc-shaped parts according to any one of claims 1 to 4, characterized in that The material support (1) is a rectangular block.

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