Vacuum adsorption clamping mechanism

Abstract

The utility model provides a vacuum adsorption clamping mechanism which comprises an installation cylinder, a connecting shaft is arranged at one end of the installation cylinder, an installation disc connected through an air suction cylinder is arranged at the other end of the installation cylinder, an air suction assembly is arranged in the installation cylinder, and the air suction cylinder is subjected to air suction through the air suction assembly to form negative pressure. A plurality of groups of movable seats are annularly arranged on an edge bulge of the mounting disc, the movable seats can slide along the center line of the mounting disc, detachable clamping blocks are arranged at the end parts of the movable seats, a driving mechanism connected with the plurality of groups of movable seats is arranged on the mounting disc, and the driving mechanism drives the plurality of groups of movable seats to slide and fold simultaneously when a workpiece is mounted. When the vacuum adsorption clamping mechanism is used for clamping workpieces and workpieces of different sizes and shapes need to be clamped and positioned, only the clamping blocks of different sizes and shapes need to be replaced, the whole positioning area does not need to be replaced, the labor intensity of workers is reduced, and meanwhile the machining cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically to a vacuum adsorption clamping mechanism. Background Technology

[0002] The clutch center sleeve is a key component of the clutch system. Through its cooperation with components such as the pressure plate and friction plates, it enables the engagement and disengagement of the clutch, thereby controlling the transmission and cutoff of power. By incorporating sliding clutch components or steel washers, the clutch center sleeve can effectively reduce manufacturing difficulty and improve the clutch's durability and stability. The inserts within the clutch center sleeve are mostly clamped onto the output shaft of a machine tool using a vacuum suction clamping mechanism during machining.

[0003] For example, Chinese utility model patent CN204711905U provides a vacuum adsorption clamp, which includes a solid body, a disassembly device, a positioning device, and a vacuum generating device. The vacuum generating device is used to generate pressure to clamp and release parts, and consists of a vacuum generator, an air pipe, and an air connection connector. It enables rapid installation and disassembly, and can clamp parts with high repeatability.

[0004] However, most existing vacuum adsorption clamping devices position the workpiece during processing by installing a positioning disc at the adsorption end. This method requires replacing the entire positioning disc when processing workpieces of different sizes, which increases the labor intensity of workers and raises processing costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a vacuum adsorption clamping mechanism to solve the technical problem mentioned in the background art. Most existing vacuum adsorption clamping devices position the workpiece during processing by installing a positioning disc at the adsorption end. However, this method requires replacing the entire positioning disc when processing workpieces of different sizes, which increases the labor intensity of workers and raises processing costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum adsorption clamping mechanism, comprising:

[0007] The mounting cylinder has a connecting shaft at one end and a mounting plate that is connected to the air pump at the other end.

[0008] An air extraction assembly is disposed inside the mounting cylinder to create a negative pressure by extracting air from the air extraction cylinder;

[0009] Multiple sets of movable seats are arranged circumferentially on the edge protrusions of the mounting plate. Each movable seat can slide along the centerline of the mounting plate, and each movable seat has a detachable clamping block at its end.

[0010] A driving mechanism is arranged on the mounting disc and connected with the plurality of movable seats to drive the plurality of movable seats to slide and fold simultaneously when the workpiece is mounted.

[0011] In a preferred embodiment, the air extraction assembly comprises:

[0012] A hydraulic cylinder is fixedly arranged in the mounting cylinder; and

[0013] A piston block is arranged at the telescopic end of the hydraulic cylinder and is slidably arranged in the air extraction cylinder and sealingly connected with the air extraction cylinder.

[0014] In a preferred embodiment, the side of the mounting disc facing the workpiece is provided with a sealing ring.

[0015] In a preferred embodiment, the driving mechanism comprises:

[0016] A driving disc is slidably sleeved on the air extraction cylinder, a plurality of driving columns are arranged on the driving disc in a ring shape, an inclined rail is arranged on the movable seat, and the driving column is slidably clamped in the inclined rail; and

[0017] A linkage assembly is arranged on the driving disc to drive the driving disc to slide in opposite directions when the workpiece is placed and removed, respectively.

[0018] In a preferred embodiment, the linkage assembly comprises:

[0019] An abutting column is arranged on the driving disc and can penetrate the mounting disc and extend outward; and

[0020] An elastic member is arranged on one side of the driving disc, an abutting frame is arranged on the air extraction cylinder, and one end of the elastic member is in abutment with the abutting frame.

[0021] In a preferred embodiment, the movable seat is provided with a mounting block at one end close to the center of the mounting disc, a connecting frame is arranged on the clamping block, the connecting frame is clamped on the mounting block and connected with the mounting block through bolts.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The clamping mechanism is connected with the output shaft of the machining machine tool through the connecting shaft, in use, the suction cylinder is suctioned to form negative pressure through the suction assembly, so as to clamp the workpiece, after the workpiece is adsorbed on the mounting disc, a plurality of groups of movable seats can be driven to slide and fold at the same time through the driving mechanism, so that a plurality of groups of clamping blocks are folded to clamp and position the workpiece, so as to avoid deviation in the machining process, and a plurality of groups of clamping blocks are in an open state in the process of mounting the workpiece, so that the workpiece is placed conveniently, when different sizes and shapes of workpieces need to be clamped and positioned, only different sizes and shapes of clamping blocks need to be replaced, the whole positioning area need not be replaced, the labor intensity of workers is reduced, and the machining cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiment of the present application, the drawings needed in the specific embodiment will be briefly introduced below. In all the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0025] Figure 1 A sectional view of the vacuum adsorption clamping mechanism provided by the present application is provided.

[0026] Figure 2 A front view of the vacuum adsorption clamping mechanism of the present application is provided.

[0027] Figure 3 A three-dimensional structural schematic view of the vacuum adsorption clamping mechanism of the present application is provided.

[0028] Figure 4 An installation structural schematic view of the clamping block in the vacuum adsorption clamping mechanism of the present application is provided.

[0029] Reference signs:

[0030] 101, mounting cylinder; 102, suction cylinder; 103, mounting disc; 104, sealing ring; 105, connecting shaft; 106, hydraulic cylinder; 107, piston block; 108, abutting frame;

[0031] 201, movable seat; 202, inclined rail; 203, mounting block; 204, clamping block; 205, connecting frame;

[0032] 301, driving disc; 302, abutting column; 303, elastic member; 304, driving column. DETAILED DESCRIPTION

[0033] The present application will be further described in detail below with reference to the drawings, it is necessary to point out that the following specific embodiment is only used to further illustrate the present application, and cannot be understood as the limitation of the protection scope of the present application, the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0034] Embodiment:

[0035] As shown in Figure 1 , 3 The utility model provides a kind of vacuum adsorption clamping mechanism, including installation cylinder 101, one end is provided with connecting shaft 105, the other end is provided with the installation disc 103 connected by suction cylinder 102, suction assembly is provided in installation cylinder 101, suction cylinder 102 is formed by suction assembly to suction and form negative pressure, suction assembly includes the hydraulic cylinder 106 fixedly arranged in installation cylinder 101, the telescopic end of hydraulic cylinder 106 is fixedly provided with piston block 107, piston block 107 is slidably arranged in suction cylinder 102 and is sealingly connected, installation disc 103 is provided with sealing ring 104 towards the side of workpiece.

[0036] When using, the connecting shaft 105 of the clamping mechanism can be connected with the output rotating shaft of the machine tool, and the clamping mechanism is controlled to rotate by the machine tool to perform turning or other forms of processing. During processing, the workpiece is moved to one side of the installation disc 103 by hand or mechanical arm, and the piston block 107 is driven to slide in the suction cylinder 102 by controlling the hydraulic cylinder 106 to retract, so that negative pressure is formed in the suction cylinder 102. An air suction device can also be installed in the installation cylinder 101 to form negative pressure in the suction cylinder 102. The workpiece can be quickly fixed. The setting of the sealing ring 104 can improve the adsorption effect and prevent the workpiece from falling during high-speed rotation.

[0037] As shown in Figure 1 , 4 In the embodiment, a plurality of movable seats 201 are further included, which are arranged in a ring shape on the edge protrusion of the installation disc 103. The movable seat 201 can slide along the center line of the installation disc 103. The end portion of the movable seat 201 is provided with a detachable clamping block 204. The installation disc 103 is provided with a driving mechanism connected with the plurality of movable seats 201. The driving mechanism drives the plurality of movable seats 201 to slide and fold simultaneously when the workpiece is installed. The driving mechanism includes a driving disc 301 slidably sleeved on the suction cylinder 102. A plurality of driving columns 304 are arranged in a ring shape on the driving disc 301. The movable seat 201 is provided with an inclined rail 202. The driving column 304 is slidably clamped in the inclined rail 202. The driving disc 301 is provided with a linkage assembly. The linkage assembly controls the driving disc 301 to slide in opposite directions when the workpiece is placed and removed, respectively.

[0038] The linkage assembly includes an abutting column 302 arranged on the driving disc 301. The abutting column 302 can penetrate through the installation disc 103 and protrude outward. One side of the driving disc 301 is provided with an elastic member 303. The suction cylinder 102 is provided with an abutting frame 108. One end of the elastic member 303 abuts against the abutting frame 108.

[0039] In the process of putting the workpiece, the abutting column 302 is pushed to slide along its axis, so that the driving disc 301 slides and compresses the elastic member 303, and the position of the workpiece is fixed by the negative pressure formed in the suction cylinder 102. The driving disc 301 controls the multiple sets of movable seats 201 to slide along the center line of the mounting disc 103 at the same time in the process of sliding through the cooperation of the driving column 304 and the inclined rail 202, so as to clamp and position the workpiece, avoid the position deviation of the workpiece in the process of high-speed rotation, and improve the precision of workpiece machining. After the negative pressure state of the suction cylinder 102 is released, the driving disc 301 is reset under the action of the elastic member 303, and the workpiece is pushed out, so that the mounting and dismounting of the workpiece are very convenient, and the problem of increasing the mounting and dismounting difficulty due to the high cooperation between the traditional positioning structure and the workpiece is solved.

[0040] As shown in Figures 2 to 4 In the embodiment, the movable seat 201 is provided with a mounting block 203 at one end close to the center of the mounting disc 103, and the clamping block 204 is provided with a connecting frame 205, which is clamped on the mounting block 203 and connected by bolts. When clamping workpieces of different sizes and shapes is needed, only the clamping block 204 needs to be replaced, without replacing the entire clamping mechanism or positioning area.

[0041] The specific use mode and beneficial effects of the utility model are as follows:

[0042] The clamping mechanism is connected with the output shaft of the machining machine tool through the connecting shaft 105. In use, the suction cylinder 102 forms negative pressure by suction through the suction assembly to clamp the workpiece. After the workpiece is adsorbed on the mounting disc 103, the multiple sets of movable seats 201 can be driven to slide and close at the same time through the driving mechanism, so that the multiple sets of clamping blocks 204 close to clamp and position the workpiece, avoiding deviation in the process of machining. In the process of mounting the workpiece, the multiple sets of clamping blocks 204 are in an open state, which facilitates the placement of the workpiece. When clamping and positioning workpieces of different sizes and shapes is needed, only the clamping blocks 204 of different sizes and shapes need to be replaced, without replacing the entire positioning area, thereby reducing the labor intensity of workers and saving processing cost.

[0043] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made without deviating from the spirit of the utility model are within the scope of protection required by the utility model.

Claims

1. A vacuum suction chucking mechanism characterized by comprising: The utility model relates to a kind of workpiece installation and removal device, including: Mounting cylinder (101), one end is provided with connecting shaft (105), the other end is provided with mounting disc (103) connected by suction cylinder (102); Suction assembly, it is arranged in the mounting cylinder (101), to the suction cylinder (102) suction forms negative pressure; Movable seat (201) is provided with multiple groups, and annularly arranged on the edge protrusion of the mounting disc (103), the movable seat (201) can slide along the midline of the mounting disc (103), and the end of the movable seat (201) is provided with detachable clamping block (204);And Driving mechanism, it is arranged on the mounting disc (103) and is connected with multiple groups of movable seat (201), to drive multiple groups of movable seat (201) to slide simultaneously when workpiece is installed.

2. The vacuum chucking mechanism according to claim 1, wherein The suction assembly includes: Hydraulic cylinder (106), fixedly arranged in the mounting cylinder (101);And Piston block (107), it is arranged in the telescopic end of the hydraulic cylinder (106), and slidingly arranged in the suction cylinder (102) and is sealingly connected.

3. The vacuum chucking mechanism according to claim 1, wherein: The side of the mounting disc (103) towards workpiece is provided with sealing ring (104).

4. The vacuum chucking mechanism according to claim 1, wherein The driving mechanism includes: Driving disc (301), slidingly sleeved on the suction cylinder (102), and multiple groups of driving columns (304) are annularly arranged on the driving disc (301); Inclined rail (202), it is arranged on the movable seat (201), and the driving column (304) is slidingly clamped in the inclined rail (202); And Linkage assembly, it is arranged on the driving disc (301), to drive the driving disc (301) to slide in opposite directions respectively when placing and unloading workpiece.

5. A vacuum chucking mechanism according to claim 4, wherein The linkage assembly includes: Butt joint column (302), it is arranged on the driving disc (301), and can penetrate the mounting disc (103) and extend outside;And Elastic member (303), it is arranged on one side of the driving disc (301), and the suction cylinder (102) is provided with abutment frame (108), and one end of the elastic member (303) is in abutment with the abutment frame (108).

6. The vacuum chucking mechanism according to claim 1, wherein: The end of the movable seat (201) close to the center of the mounting disc (103) is provided with mounting block (203), the clamping block (204) is provided with connecting frame (205), the connecting frame (205) is clamped on the mounting block (203) and is connected by bolt.

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