A clamping device for processing special-shaped parts

Abstract

The application provides a clamping device for special-shaped part machining, and belongs to the technical field of clamping devices.The clamping device comprises a base, a driving assembly, a limiting assembly, a supporting assembly and a jacking assembly.Two groups of the supporting assembly are arranged on the upper part of the base in a spaced manner.The opposite sides of the two groups of the supporting assembly are each provided with a plurality of the jacking assembly.The jacking assembly on the opposite side of the two groups of the supporting assembly can move towards the corresponding supporting assembly when the jacking assembly touches the side wall of the special-shaped part.The driving assembly is arranged in the base and is used to drive the two groups of the supporting assembly to move towards each other.Compared with the prior art, the embodiment of the application can adaptively rigidly clamp the special-shaped part according to the shape of the side wall of the special-shaped part, thereby increasing the contact area between the clamping device and the special-shaped part and improving the stability of the clamped special-shaped part.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of clamping devices, and specifically relates to a clamping device for special-shaped part machining. BACKGROUND

[0002] At present, when machining parts, clamping devices are usually used to clamp the parts to improve machining effects.

[0003] Common clamping devices are mostly bench vice clamping devices or pin clamping devices, and both of them have good clamping effects on parts with regular shapes. However, when the two clamping devices clamp special-shaped parts with irregular shapes, such as curved side walls or locally concave side walls, both of them have the problem of small contact area with the side walls of the special-shaped parts. When the contact area between the clamping device and the special-shaped part is small, the stability of the clamped special-shaped part will be insufficient, which will affect the machining of the special-shaped part. SUMMARY

[0004] In view of the above problems of the prior art, the technical problem to be solved by the embodiments of the present application is to provide a clamping device for special-shaped part machining.

[0005] To solve the above technical problems, the present application provides the following technical scheme:

[0006] A clamping device for special-shaped part machining, comprising a base, a driving assembly, a limiting assembly, a supporting assembly and a supporting assembly,

[0007] The supporting assembly is provided with two groups, and the two groups of supporting assemblies are distributed at intervals on the upper part of the base,

[0008] The opposite side of the two groups of supporting assemblies is provided with a plurality of supporting assemblies, and when the plurality of supporting assemblies on the opposite side of the two groups of supporting assemblies touch the side walls of the special-shaped part, the plurality of supporting assemblies can move towards the corresponding supporting assemblies,

[0009] The driving assembly is arranged in the base and is used to drive the two groups of supporting assemblies to move towards each other, so as to drive the plurality of supporting assemblies on the opposite side of the two groups of supporting assemblies to touch the opposite two side walls of the special-shaped part,

[0010] The limiting assembly is arranged on one side of the supporting assembly, and when the plurality of supporting assemblies all touch the side walls of the special-shaped part, the limiting assembly is used to limit the supporting assembly and the plurality of supporting assemblies on one side of the supporting assembly as a whole.

[0011] As a further improved scheme of the present application, the driving assembly comprises a transmission bevel gear, a driving bevel gear, a motor, a rotating shaft and a threaded sleeve,

[0012] The rotating shaft is arranged inside the base, the transmission bevel gear is fixedly arranged outside the rotating shaft, the motor is fixedly installed on the inner wall of the base, the driving bevel gear is arranged on the output end of the motor and is engaged with the transmission bevel gear,

[0013] Two groups of thread segments with opposite rotation directions are arranged on the rotating shaft, two groups of thread sleeves are arranged, the two groups of thread sleeves are sleeved outside the rotating shaft and are threadedly connected with the two groups of thread segments respectively, and a sliding groove is formed in the upper wall of the base,

[0014] The two groups of support assemblies are the same in structure and each include a support plate, a connecting rod is fixedly arranged at the bottom of the support plate, one end of the connecting rod away from the support plate extends from the sliding groove to the inside of the base and is connected with the thread sleeve.

[0015] As a further improved scheme of the present application, a plurality of support rods are fixedly arranged on the opposite sides of the two groups of support plates and are linearly and spacedly arranged on the side of the corresponding support plate,

[0016] The plurality of top support assemblies are the same in structure and each include a top support sleeve,

[0017] The plurality of top support sleeves are movably sleeved outside the plurality of support rods, when all the top support sleeves contact the side wall of the special-shaped part, the limiting assembly is used for synchronously limiting the plurality of top support sleeves and the plurality of support rods.

[0018] As a further improved scheme of the present application, one end of the support rod located inside the top support sleeve is fixedly provided with a second piston block, the side wall of the support rod is provided with an opening, and a tooth groove is formed in the inner wall of the top support sleeve along the length direction,

[0019] The limiting assembly includes a limiting rod, a first piston block, a gas storage tank, a second elastic member and a piston plate,

[0020] One end of the limiting rod extends to the space between the support rod and the top support sleeve, and the other end extends to the inside of the support rod from the opening, the side wall of the limiting rod and the inner wall of the opening are rotationally connected through a pin rod, and the first piston block is movably arranged in the inside of the support rod,

[0021] The gas storage tank is fixedly arranged on the side of the support plate, the inner cavity of the support rod and the inner cavity of the gas storage tank are communicated through a first gas pipe, and the inner cavity of the top support sleeve and the inner cavity of the gas storage tank are communicated through a second gas pipe,

[0022] The piston plate is movably arranged in the inside of the gas storage tank, one end of the second elastic member is connected with the inner wall of the gas storage tank, and the other end is connected with the piston plate, so as to provide elastic support for the piston plate.

[0023] As a further improvement of the present invention: the end of the second piston block away from the support rod is further connected to the inner wall of the supporting sleeve through a third elastic member, and the third elastic member is used to provide elastic support for the supporting sleeve.

[0024] One side of the limiting rod is connected to the inner wall of the support rod via a first elastic member, and the first elastic member is used to provide elastic pulling force to the limiting rod.

[0025] As a further improvement of the present invention: the first air pipe and the second air pipe are further connected via a third air pipe, and a one-way valve is provided inside the third air pipe.

[0026] As a further improvement of the present invention: the second air pipe is made of a flexible material or a part of the pipe body is made of a flexible material.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In an embodiment of the present invention, when processing a special-shaped part, the special-shaped part can be placed on the upper part of the base and located between the two groups of support assemblies. The two groups of support assemblies are then driven by the driving assembly to move toward each other, thereby driving the several supporting assemblies on the opposite sides of the two groups of support assemblies to move toward each other. Since the processed part is a special-shaped part and the shape of the side wall of the special-shaped part is irregular, the several supporting assemblies on one side of the support assembly act on the side wall of the special-shaped part in sequence, and then move toward the corresponding supporting assembly in sequence. After all the supporting assemblies act on the side wall of the special-shaped part, the support assembly and the several supporting assemblies are defined as one body by the limiting assembly, so that the subsequent thrust from the support assembly can directly act on the several supporting assemblies, and the several supporting assemblies are used to achieve rigid clamping of the special-shaped part. Compared with the existing technology, the special-shaped part can be adaptively clamped at multiple points according to the shape of the side wall of the special-shaped part, thereby increasing the contact area between the clamping device and the special-shaped part and improving the stability of the special-shaped part after clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a clamping device for processing special-shaped parts;

[0030] Figure 2 This is a schematic diagram of the distribution of support components in a clamping device for processing special-shaped parts;

[0031] Figure 3 for Figure 1 A magnified schematic diagram of area A in the middle;

[0032] Figure 4 for Figure 1 A magnified schematic diagram of area B in the middle;

[0033] Figure 5 for Figure 1 Enlarged schematic diagram of area C in the middle;

[0034] In the figure: 10-base, 101-slide, 20-drive assembly, 201-transmission bevel gear, 202-drive bevel gear, 203-motor, 204-rotating shaft, 205-threaded segment, 206-threaded sleeve, 30-limiting assembly, 301-limiting rod, 302-first elastic member, 303-first piston block, 304-air storage box, 305-second elastic member, 306-first air pipe, 307-piston plate, 308-second air pipe, 309-third air pipe, 40-support assembly, 401-support plate, 402-support rod, 403-second piston block, 404-opening, 50-top support assembly, 501-top support sleeve, 502-third elastic member, 503-tooth groove. Implementation Method

[0035] The technical solution of the present application will be further described in detail below in conjunction with specific implementation methods.

[0036] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0037] See also Figure 1 The present embodiment provides a clamping device for processing special-shaped parts, including a base 10, a driving assembly 20, a limiting assembly 30, a supporting assembly 40 and a supporting assembly 50. The supporting assembly 40 is provided with two groups, and the two groups of supporting assemblies 40 are spaced apart on the upper part of the base 10. A plurality of supporting assemblies 50 are provided on opposite sides of the two groups of supporting assemblies 40. When the plurality of supporting assemblies 50 on the opposite sides of the two groups of supporting assemblies 40 touch the side walls of the special-shaped parts, they can move toward the directions of the corresponding supporting assemblies 40. The driving assembly 20 is arranged inside the base 10, and is used to drive the two groups of supporting assemblies 40 to move toward each other, so as to drive the plurality of supporting assemblies 50 located on the opposite sides of the two groups of supporting assemblies 40 to touch the two opposite side walls of the special-shaped parts. The limiting assembly 30 is arranged on one side of the supporting assembly 40. When the plurality of supporting assemblies 50 all touch the side walls of the special-shaped parts, the limiting assembly 30 is used to limit the supporting assembly 40 and the plurality of supporting assemblies 50 on one side thereof into one body.

[0038] When processing special-shaped parts, the special-shaped parts can be placed on the upper part of the base 10 and located between the two groups of support assemblies 40. Then, the two groups of support assemblies 40 are driven to move toward each other through the driving assembly 20, and then the several top support assemblies 50 on the opposite side of the two groups of support assemblies 40 are driven to move toward each other. Since the processed parts are special-shaped parts and the shapes of the side walls of the special-shaped parts are irregular, the several top support assemblies 50 on one side of the support assembly 40 act on the side walls of the special-shaped parts in turn, and then move toward the corresponding top support assemblies 40 in turn. When all the top support assemblies 50 act on the side walls of the special-shaped parts, the limiting assembly 30 is used to define the support assembly 40 and the several top support assemblies 50 as a whole, so that the subsequent thrust from the support assembly 40 can directly act on the several top support assemblies 50, and the several top support assemblies 50 are used to achieve rigid clamping of the special-shaped parts.

[0039] See also Figure 1 In one embodiment, the driving assembly 20 includes a transmission bevel gear 201, a driving bevel gear 202, a motor 203, a rotating shaft 204 and a threaded sleeve 206. The rotating shaft 204 is rotatably arranged inside the base 10, the transmission bevel gear 201 is fixedly arranged outside the rotating shaft 204, the motor 203 is fixedly mounted on the inner wall of the base 10, the driving bevel gear 202 is arranged at the output end of the motor 203 and meshes with the transmission bevel gear 201, and the rotating shaft 204 is provided with two sets of rotating There are two groups of threaded sleeves 206 facing opposite threaded segments 205. The two groups of threaded sleeves 206 are sleeved on the outside of the rotating shaft 204 and are respectively threadedly engaged with the two groups of threaded segments 205. A sliding groove 101 is provided on the upper wall of the base 10. The two groups of support assemblies 40 have the same structure and both include a support plate 401. A connecting rod is fixedly provided at the bottom of the support plate 401. The end of the connecting rod away from the support plate 401 extends from the sliding groove 101 to the inside of the base 10 and is connected to the threaded sleeve 206.

[0040] The motor 203 drives the driving bevel gear 202 to rotate, and the meshing action of the driving bevel gear 202 and the transmission bevel gear 201 drives the rotating shaft 204 to rotate. When the rotating shaft 204 rotates, the two sets of threaded segments 205 respectively mesh with the two sets of threaded sleeves 206 to drive the two sets of threaded sleeves 206 to approach each other. When the two sets of threaded sleeves 206 approach each other, they can drive the two sets of support plates 401 to move toward each other, and then drive the several supporting assemblies 50 located on the opposite side of the two sets of support plates 401 to move toward each other, so as to clamp the special-shaped parts in opposite directions.

[0041] See also Figure 1 and Figure 2In one embodiment, a plurality of support rods 402 are fixedly provided on opposite sides of the two groups of support plates 401, and the plurality of support rods 402 are linearly spaced and distributed on one side of the corresponding support plates 401. The plurality of support assemblies 50 have the same structure and include support sleeves 501. The plurality of support sleeves 501 are movably sleeved on the outside of the plurality of support rods 402. When all the support sleeves 501 touch the side wall of the special-shaped part, the limit assembly 30 is used to synchronously limit the plurality of support sleeves 501 and the plurality of support rods 402, so as to directly transmit the thrust when the support plate 401 moves to the plurality of support sleeves 501 through the plurality of support rods 402, thereby realizing rigid clamping of the special-shaped part.

[0042] See also Figure 3 、 Figure 4 and Figure 5 In one embodiment, a second piston block 403 is fixedly provided at one end of the support rod 402 located inside the supporting sleeve 501, an opening 404 is provided on the side wall of the support rod 401, and a tooth groove 503 is provided on the inner wall of the supporting sleeve 501 along the length direction. The limiting assembly 30 includes a limiting rod 301, a first piston block 303, an air storage box 304, a second elastic member 305 and a piston plate 307. One end of the limiting rod 301 extends between the support rod 402 and the supporting sleeve 501, and the other end extends from the opening 404 to the inside of the support rod 402. The side wall of the limiting rod 301 is aligned with the opening 404. 04 inner wall is rotatably connected by a pin rod, the first piston block 303 is movably arranged inside the support rod 402, and the air storage box 304 is fixedly arranged on one side of the support plate 401. The inner cavity of the support rod 402 and the inner cavity of the air storage box 304 are connected through the first air pipe 306, and the inner cavity of the supporting sleeve 501 and the inner cavity of the air storage box 304 are connected through the second air pipe 308. The piston plate 307 is movably arranged inside the air storage box 304, and one end of the second elastic member 305 is connected to the inner wall of the air storage box 304, and the other end is connected to the piston plate 307, which is used to provide elastic support for the piston plate 307.

[0043] When the two sets of support plates 401 move towards each other and the plurality of top support sleeves 501 successively touch the side wall of the irregular-shaped part, the second piston block 403 moves towards the inside of the top support rod 501 to successively press the air inside the plurality of top support sleeves 501 to the inside of the air storage tank 304 from the second air pipe 308. When the air enters the inside of the air storage tank 304, it can push the piston plate 307 to gradually move upwards inside the air storage tank 304 against the support force of the second elastic member 305. When all the top support sleeves 501 touch the side wall of the irregular-shaped part, the air inside all the top support sleeves 501 enters the inside of the air storage tank 304 and can push the piston plate 307 to a certain height, so that the piston plate 307 is located above the communication position of the first air pipe 306 and the air storage tank 304. At this time, the second air pipe 308 is connected with the first air pipe 306. With the continuous movement of the second piston block 404 inside the top support sleeve 501, the air inside the top support sleeve 501 can enter the inside of the support rod 402 through the second air pipe 308, the air storage tank 304 and the first air pipe 306, and then push the first piston block 303 to move inside the support rod 402. When the first piston block 303 moves, it can push one end of the limiting rod 301 inside the support rod 402 to drive the limiting rod 301 to rotate. When the limiting rod 301 rotates, one end of the limiting rod 301 between the support rod 402 and the top support sleeve 501 stretches into the inside of the tooth groove 503 and abuts against the inner wall of the tooth groove 503. Thereafter, when the two sets of support plates 401 move towards each other, the moving force of the support plate 401 can be directly transmitted to the top support sleeve 501 through the support rod 402 and the limiting rod 301. The top support sleeve 501 is pushed by the force and rigidly clamps the irregular-shaped part.

[0044] Please refer to Figure 3 and Figure 4 In one embodiment, one end of the second piston block 403 away from the support rod 402 is also connected with the inner wall of the top support sleeve 501 through a third elastic member 502. The third elastic member 502 is used to provide elastic support for the top support sleeve 501. One side of the limiting rod 301 and the inner wall of the support rod 402 are also connected through a first elastic member 302. The first elastic member 302 is used to provide elastic tension for the limiting rod 301.

[0045] When the second piston block 403 moves to the inside of the supporting sleeve 501 and pushes the air inside the supporting sleeve 501 to the inside of the air storage tank 304 from the second air pipe 308, the third elastic member 502 is compressed; when the air enters the inside of the supporting rod 402 and pushes the first piston block 303 to move to drive the limiting rod 301 to rotate, the first elastic member 302 is stretched; after the special-shaped part is processed, the motor 203 drives the driving bevel gear 202 to rotate reversely, the driving bevel gear 202 drives the transmission bevel gear 201 to rotate reversely through the meshing, the rotating shaft 204 is driven to rotate reversely through the meshing of the threaded section 205 and the threaded sleeve 206, and then the two groups of supporting plates 401 are driven to move away from each other, and then the several supporting rods 402 and the several supporting sleeves 501 are driven to move away from each other, so as to release the supporting and clamping of the special-shaped part; in the above process, when the two groups of supporting plates 401 move away from each other, the third elastic member 502 pushes the supporting sleeve 501 to make the second piston block 403 move to the outside of the supporting sleeve 501, at this time, the second piston block 403 re-pumps the air inside the supporting rod 402 to the inside of the supporting sleeve 501 from the first air pipe 306, the air storage tank 304 and the second air pipe 308, so as to drive the first piston block 303 to move reversely inside the supporting rod 402, so as to release the pushing action on the limiting rod 301, then the first elastic member 302 drives the limiting rod 301 to rotate reversely, so that the end of the limiting rod 301 between the supporting rod 402 and the supporting sleeve 501 is separated from the inside of the tooth groove 503, the limiting rod 301, the second piston block 403 and the first piston block 303 are reset, and the subsequent special-shaped part is continuously supported and clamped.

[0046] Please refer to Figure 5 In one embodiment, the first air pipe 306 and the second air pipe 308 are also connected through a third air pipe 309, and the third air pipe 309 is provided with a one-way valve.

[0047] When the second piston block 403 moves to the inside of the support sleeve 501 to perform the air compression action, due to the presence of the one-way valve in the third air pipe 309, when the air enters the inside of the second air pipe 308, it first pushes the piston plate 307 to move upwards in the inside of the air storage tank 304, and then enters the inside of the support rod 402 from the first air pipe 306, instead of directly entering the inside of the first air pipe 306 from the third air pipe 309 through the air storage tank 304. The purpose of such arrangement is that when the second piston block 403 moves to the outside of the support sleeve 501 to perform the air extraction action, the air in the inside of the air storage tank 304 below the piston plate 307 can be extracted to the inside of the support sleeve 501 from the second air pipe 308, and then the support action of the second elastic member 305 makes the piston plate 307 move downwards, so as to realize the smooth reset of the piston plate 307. When the piston plate 307 is reset and seals the first air pipe 306, the air in the inside of the support rod 402 can be smoothly extracted to the inside of the support sleeve 501 through the first air pipe 306, the third air pipe 309 and the second air pipe 308, and then smoothly drive the second piston block 403 to move reversely along the inside of the support rod 402, so that the limiting rod 301 is smoothly separated from the inside of the tooth groove 503.

[0048] Since relative movement will occur between the support sleeve 501 and the support plate 401 when the special-shaped part is clamped, in order to avoid the rigid action of the second air pipe 308 limiting the relative movement between the support sleeve 501 and the support plate 401, in an embodiment, the second air pipe 308 is made of flexible material or part of the pipe body is made of flexible material.

[0049] In an embodiment, the first elastic member 302, the second elastic member 305 and the third elastic member 502 can be springs or metal elastic sheets, which are not limited here.

[0050] In the embodiment of the present application, when the special-shaped part is processed, the special-shaped part can be placed on the upper part of the base 10 and between the two groups of supporting assemblies 40, then the two groups of supporting assemblies 40 are driven to move towards each other by the driving assembly 20, and then drive the several supporting assemblies 50 on one side of the two groups of supporting assemblies 40 to move towards each other. Since the processed part is a special-shaped part, the shape of the side wall of the special-shaped part is irregular, so the several supporting assemblies 50 on one side of the supporting assembly 40 act on the side wall of the special-shaped part in turn, and then move to the direction of the corresponding supporting assembly 40 in turn. When all the supporting assemblies 50 act on the side wall of the special-shaped part, the supporting assembly 40 and the several supporting assemblies 50 are limited as a whole by the limiting assembly 30, so that the subsequent thrust from the supporting assembly 40 can directly act on the several supporting assemblies 50, and the several supporting assemblies 50 realize the rigid clamping of the special-shaped part. Compared with the prior art, the rigid clamping of the several supporting assemblies 50 can be self-adapted according to the shape of the side wall of the special-shaped part, so as to increase the contact area between the clamping device and the special-shaped part, and improve the stability of the special-shaped part after clamping.

[0051] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A clamping device for processing special-shaped parts, characterized in that: It includes a base, a driving assembly, a limiting assembly, a supporting assembly and a top supporting assembly. There are two groups of support components, and the two groups of support components are spaced apart on the upper part of the base. A plurality of supporting assemblies are provided on opposite sides of the two groups of supporting assemblies. When the plurality of supporting assemblies on the opposite side of the two groups of supporting assemblies touch the side wall of the special-shaped part, they can move toward the direction of the corresponding supporting assembly. The driving assembly is arranged inside the base and is used to drive the two groups of support assemblies to move toward each other, so as to drive the plurality of support assemblies located on opposite sides of the two groups of support assemblies to touch the two opposite side walls of the special-shaped part. The limiting assembly is arranged on one side of the supporting assembly. When all of the supporting assemblies touch the side wall of the special-shaped part, the limiting assembly is used to limit the supporting assembly and the supporting assemblies on one side thereof into one body. The two groups of support components have the same structure and both include support plates. A plurality of support rods are fixedly provided on opposite sides of the two groups of support plates. The plurality of top support components have the same structure and both include top support sleeves. The plurality of top support sleeves are movably sleeved on the outside of the plurality of support rods. A second piston block is fixedly provided at one end of the support rod located inside the supporting sleeve, an opening is provided on the side wall of the support rod, and a tooth groove is provided on the inner wall of the supporting sleeve along the length direction. The limiting assembly includes a limiting rod, a first piston block, an air storage box, a second elastic member and a piston plate. One end of the limiting rod extends between the support rod and the supporting sleeve, and the other end extends from the opening to the inside of the support rod. The side wall of the limiting rod is rotatably connected to the inner wall of the opening through a pin rod, and the first piston block is movably arranged inside the support rod. The air storage box is fixedly arranged on one side of the support plate, the inner cavity of the support rod is connected to the inner cavity of the air storage box through a first air pipe, and the inner cavity of the supporting sleeve is connected to the inner cavity of the air storage box through a second air pipe. The piston plate is movably arranged inside the air storage box. One end of the second elastic member is connected to the inner wall of the air storage box, and the other end is connected to the piston plate, so as to provide elastic support for the piston plate.

2. A clamping device for processing special-shaped parts according to claim 1, characterized in that: The driving assembly includes a transmission bevel gear, a driving bevel gear, a motor, a rotating shaft and a threaded sleeve. The rotating shaft is rotatably arranged inside the base, the transmission bevel gear is fixedly arranged outside the rotating shaft, the motor is fixedly mounted on the inner wall of the base, and the driving bevel gear is arranged at the output end of the motor and meshes with the transmission bevel gear. The rotating shaft is provided with two groups of threaded segments with opposite rotation directions, and the threaded sleeves are provided with two groups. The two groups of threaded sleeves are sleeved on the outside of the rotating shaft and respectively engage with the two groups of threaded segments. A sliding groove is provided on the upper wall of the base. A connecting rod is fixedly provided at the bottom of the support plate, and one end of the connecting rod away from the support plate extends from the sliding groove to the inside of the base and is connected to the threaded sleeve.

3. A clamping device for processing special-shaped parts according to claim 2, characterized in that: The plurality of support rods are linearly spaced apart on one side of the corresponding support plate. When all of the supporting sleeves touch the side wall of the special-shaped part, the limiting assembly is used to synchronously limit the plurality of supporting sleeves and the plurality of support rods.

4. The clamping device for processing special-shaped parts according to claim 1, characterized in that: The end of the second piston block away from the support rod is also connected to the inner wall of the supporting sleeve through a third elastic member, and the third elastic member is used to provide elastic support for the supporting sleeve. One side of the limiting rod is connected to the inner wall of the support rod via a first elastic member, and the first elastic member is used to provide elastic pulling force to the limiting rod.

5. The clamping device for processing special-shaped parts according to claim 1, characterized in that: The first air pipe and the second air pipe are also connected through a third air pipe, and a one-way valve is provided inside the third air pipe.

6. The clamping device for processing special-shaped parts according to claim 1, characterized in that: The second air pipe is made of a flexible material or a portion of the pipe body is made of a flexible material.

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