Self-system three-jaw clamping device

Abstract

The utility model discloses a self-system three-jaw clamping device which comprises a fixing plate, a lifting disc and a mounting groove. A mounting plate is arranged at the top of the fixed plate; a cylinder is arranged at the top of the mounting plate; the lifting disc is arranged at the output end of the air cylinder, and concave blocks are connected to the bottom of the fixing plate at equal intervals. The mounting grooves are formed in the bottom of the fixing plate at equal intervals. According to the utility model, a three-jaw clamping mode is adopted, the clamping mechanism is ingeniously designed, and a workpiece is clamped by utilizing the cooperative movement of a plurality of components, so that the clamping force is uniformly distributed, the workpiece can be stably fixed, the workpiece is effectively prevented from displacing or shaking in the machining or operation process, and the machining precision and the operation safety are ensured; the device is composed of the fixing plate, the mounting plate, the air cylinder, the lifting disc, the concave block, the clamping mechanism and the like, manufacturing and assembling are easy, and the universality and adaptability of the device are improved; the air cylinder drives the lifting disc to ascend and descend so as to control the action of the clamping mechanism, and the clamping requirements of workpieces of different sizes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to three claw clamping technical field, concretely is self -made three claw clamping device. BACKGROUND

[0002] In prior art, similar three claw clamping mode or clamping mechanism design is not reasonable enough, leading to uneven clamping force distribution, and workpiece cannot be stably fixed during machining or operation process, workpiece is prone to displacement or shaking, seriously affecting machining precision, and even safety accident can be caused by workpiece movement, lacking effective positioning and connecting reinforcement measures, and most of similar parts such as rubber pad are fixedly arranged, and installation process is tedious and complex, a plurality of tools need to be assisted and time is consumed for a long time, so that the installation and replacement efficiency of rubber pad is low, and the maintenance convenience and normal operation time of equipment are affected. UTILITY MODEL CONTENTS

[0003] The utility model discloses a self -made three claw clamping device, to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: self -made three claw clamping device, comprising: fixed plate, lifting disc and installation slot;

[0005] The top of the fixed plate is provided with a mounting plate, the top of the mounting plate is provided with a pneumatic cylinder, and the pneumatic cylinder is connected to the top of the mounting plate through bolts;

[0006] The lifting disc is arranged at the output end of the pneumatic cylinder, the bottom of the fixed plate is connected with concave blocks at equal intervals, and the bottom of the lifting disc is provided with grooves for installing the concave blocks at equal intervals;

[0007] The installation slot is arranged at the bottom of the fixed plate at equal intervals, the number of installation slots is three groups, and the three groups of installation slots are integrally formed with the fixed plate, the inside of the concave block is hinged with an inverted L-shaped block A, one end of the inverted L-shaped block A extends to the inside of the installation slot, the bottom of the concave block is provided with a clamping mechanism, and the connecting block, clamping block and inverted L-shaped block B of the clamping mechanism are moved to clamp the workpiece required by the clamping block, the inside of the clamping block is provided with a rubber pad, and the rubber pad is provided with a dismounting mechanism between the clamping block.

[0008] Preferably, the clamping mechanism comprises an elliptical groove opened on one side of the inverted L-shaped block A, and the elliptical groove and the inverted L-shaped block A are integrally formed; a hinged groove is opened on the surface of the lifting disc, and the hinged groove and the lifting disc are integrally formed; the hinged groove is aligned with the elliptical groove; the other end of the inverted L-shaped block A is hinged to the bottom of the concave block; the inverted L-shaped block B is hinged to the bottom of the inverted L-shaped block A; the connecting block is hinged to the other side of the bottom of the concave block; the bottom of the connecting block is connected to the surface of the inverted L-shaped block B; and the clamping block is connected to the inner side of the inverted L-shaped block B.

[0009] Preferably, the concave block, the connecting block and the inverted L-shaped block A are rotationally connected through the positioning pin A, and the positioning pin A ensures the reliability of the rotational connection between the concave block, the connecting block and the inverted L-shaped block A.

[0010] Preferably, the inverted L-shaped block B, the inverted L-shaped block A and the connecting block are rotationally connected through the positioning pin B, and the positioning pin B ensures the reliability of the rotational connection between the inverted L-shaped block B, the inverted L-shaped block A and the connecting block.

[0011] Preferably, the surfaces of the positioning pin A and the positioning pin B are respectively connected with limiting pins, and the limiting pins can prevent the positioning pin A and the positioning pin B from accidentally falling out during rotation, thereby ensuring the stability and accuracy of the movement of the entire clamping mechanism.

[0012] Preferably, the fixing plate and the mounting plate are connected through bolts, and the bolts are used for mounting and dismounting the fixing plate and the mounting plate.

[0013] Preferably, the dismounting mechanism comprises a sliding block connected to one side of a rubber pad, a cavity is opened at a position in the middle of the interior of the sliding block, a spring is connected in the interior of the cavity, a moving plate is connected to one side of the interior of the cavity, a plug-in block is connected to one side of the surface of the moving plate, and a sliding groove for slidingly connecting the sliding block is opened in the interior of the clamping block.

[0014] Preferably, an arc-shaped groove is opened on the surface of the clamping block, and a plug-in groove for plug-in connecting the plug-in block is opened at a position in the middle of the interior of the clamping block.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) By adopting the three-jaw clamping mode, through the ingenious design of the clamping mechanism, the cooperative movement of multiple components is utilized to clamp the workpiece, so that the clamping force is uniformly distributed, the workpiece can be stably fixed, displacement or shaking of the workpiece during machining or operation is effectively prevented, machining precision and operation safety are ensured, and the reliability and stability of the clamping mechanism connection are further enhanced by the arrangement of the positioning pin A, the positioning pin B and the limiting pin, thereby reducing the risk of clamping failure caused by loose connection.

[0017] (2), through the fixed plate, mounting plate, cylinder, lifting disc, concave block, clamping mechanism and other components, the connection and cooperation between each component is clear, easy to manufacture and assemble, each component layout is reasonable, while realizing the clamping function, the volume and occupied space of the device are reduced as much as possible, which is convenient for installation and use in different working environment and equipment, and improves the universality and adaptability of the device;

[0018] (3), the action of the clamping mechanism is controlled by driving the lifting disc of the cylinder to rise and fall, which is convenient to operate, only needs to control the air inlet and air outlet of the cylinder to realize clamping and loosening operation, is easy to realize automatic control, the hinge connection mode between each component in the clamping mechanism enables the clamping block to be flexibly adjusted in a certain range, adapts to the clamping requirements of workpieces of different sizes, and improves the application range of the device;

[0019] (4), when the rubber pad is installed, the sliding block on one side of the rubber pad slides into the sliding groove in the clamping block, and the insertion block moves to the surface of the insertion slot, at this time, the spring itself can push the moving plate and the insertion block to the initial position to push the insertion block into the insertion slot, so as to form the installation and fixation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a structural schematic view of the utility model in front view;

[0022] Figure 3 It is a structural schematic view of the utility model in three-dimensional view;

[0023] Figure 4 It is a structural schematic view of the utility model when it is disassembled;

[0024] Figure 5 It is a structural schematic view of the rubber pad and the sliding block of the utility model;

[0025] Figure 6 It is a structural schematic view of the clamping block of the utility model.

[0026] In the drawing: 1, cylinder; 2, mounting plate; 3, fixed plate; 4, positioning pin B; 5, inverted L-shaped block B; 6, clamping block; 7, rubber pad; 8, concave block; 9, positioning pin A; 10, connecting block; 11, lifting disc; 12, mounting groove; 13, hinge groove; 14, inverted L-shaped block A; 15, elliptical groove; 16, limiting pin; 17, sliding block; 18, insertion block; 19, moving plate; 20, cavity; 21, spring; 22, sliding groove; 23, insertion slot; 24, arc-shaped groove. PREFERRED EMBODIMENT

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-6 The utility model provides a technical scheme: Self -made three -jaw chucking device, include: fixed plate 3, the top of fixed plate 3 is provided with mounting plate 2, the top of mounting plate 2 is provided with pneumatic cylinder 1;

[0029] Lifting disc 11, the lifting disc 11 is arranged in the output end of pneumatic cylinder 1, the bottom of fixed plate 3 is connected with concave block 8 at equal intervals;

[0030] Mounting groove 12, the mounting groove 12 is opened at equal intervals in the bottom of fixed plate 3, the inside of concave block 8 is hinged with inverted L shaped block A 14, and inverted L shaped block A 14 extends to the inside of mounting groove 12 at one end, the bottom of concave block 8 is provided with clamping mechanism, moves through the connecting block 10, clamping block 6 and inverted L shaped block B 5 of clamping mechanism, so that clamping block 6 clamps the workpiece required, the inside of clamping block 6 is provided with rubber pad 7, and the rubber pad 7 is provided with dismounting mechanism between clamping block 6.

[0031] The clamping mechanism includes the ellipsoidal groove 15 opened in one side of inverted L shaped block A 14, and the ellipsoidal groove 15 and inverted L shaped block A 14 are integrally formed, the surface of lifting disc 11 is provided with hinged groove 13, and the hinged groove 13 and lifting disc 11 are integrally formed, and the hinged groove 13 is aligned with the ellipsoidal groove 15, the other end of inverted L shaped block A 14 is hinged at the bottom of concave block 8, inverted L shaped block B 5 is hinged at the bottom of inverted L shaped block A 14, connecting block 10 is hinged at the other side of the bottom of concave block 8, the bottom of connecting block 10 is connected to the surface of inverted L shaped block B 5, and clamping block 6 is connected to the inside of inverted L shaped block B 5.

[0032] The concave block 8, the connecting block 10 and the inverted L shaped block A 14 are rotationally connected through the positioning pin A 9, and the positioning pin A 9 ensures the reliability of the rotational connection between the concave block 8, the connecting block 10 and the inverted L shaped block A 14.

[0033] The inverted L shaped block B 5, the inverted L shaped block A 14 and the connecting block 10 are rotationally connected through the positioning pin B 4, and the positioning pin B 4 ensures the reliability of the rotational connection between the inverted L shaped block B 5, the inverted L shaped block A 14 and the connecting block 10.

[0034] The surface of the positioning pin A9 and the positioning pin B4 is respectively connected with a limiting pin 16, and the limiting pin 16 can prevent the positioning pin A9 and the positioning pin B4 from being accidentally removed during rotation, thereby ensuring the stability and accuracy of the movement of the whole clamping mechanism.

[0035] The fixing plate 3 is connected with the mounting plate 2 through bolts, and the bolts are used for mounting and dismounting the fixing plate 3 and the mounting plate 2.

[0036] The dismounting mechanism comprises a sliding block 17 connected with one side of the rubber pad 7, a cavity 20 is arranged in the middle of the sliding block 17, a spring 21 is connected in the cavity 20, a moving plate 19 is connected on one side of the spring 21 in the cavity 20, an inserting block 18 is connected on one side of the surface of the moving plate 19, and a sliding groove 22 for slidingly connecting the sliding block 17 is arranged in the clamping block 6.

[0037] An arc-shaped groove 24 is arranged on the surface of the clamping block 6, and an inserting groove 23 for inserting the inserting block 18 is arranged in the middle of the clamping block 6.

[0038] Specifically, when the workpiece needs to be clamped, the air cylinder 1 is started, the output end of the air cylinder 1 pushes the lifting disc 11 to move downward, because the hinged groove 13 on the surface of the lifting disc 11 is aligned with the elliptical groove 15 on one side of the inverted L-shaped block A 14, and the inverted L-shaped block A 14 is hinged at one end of the bottom of the concave block 8 and extends into the mounting groove 12, so when the lifting disc 11 descends, the inverted L-shaped block A 14 is pushed to rotate around the hinged point of the inverted L-shaped block A 14 and the concave block 8 through the cooperation of the hinged groove 13 and the elliptical groove 15, when the inverted L-shaped block A 14 rotates, the inverted L-shaped block B 5 hinged at the bottom of the inverted L-shaped block A 14 moves, at the same time, the connecting block 10 is hinged at the other side of the bottom of the concave block 8 and connected at the surface of the inverted L-shaped block B 5, the inverted L-shaped block B 5 also rotates around the hinged points of the inverted L-shaped block B 5, the inverted L-shaped block A 14 and the connecting block 10 (rotationally connected through the positioning pin B 4), the connecting block 10 rotates around the hinged point of the connecting block 10 and the concave block 8 (rotationally connected through the positioning pin A 9), the inner side of the inverted L-shaped block B 5 is connected with the clamping block 6, with the movement of the inverted L-shaped block B 5, the clamping block 6 moves to the center, thereby clamping the workpiece placed in the middle, adopting the three-jaw clamping mode, through the ingenious design of the clamping mechanism, the clamping of the workpiece is realized through the cooperative movement of multiple components, the clamping force is uniformly distributed, the workpiece can be stably fixed, displacement or shaking of the workpiece during machining or operation is effectively prevented, and machining precision and operation safety are ensured.

[0039] The positioning pin A9 guarantees the rotating connection reliability between the concave block 8 and the connecting block 10 and the inverted L-shaped block A14, and the positioning pin B4 guarantees the rotating connection reliability between the inverted L-shaped block B5 and the inverted L-shaped block A14 and the connecting block 10, and the limiting pin 16 can prevent the positioning pin A9 and the positioning pin B4 from being accidentally pulled out during the rotating process, thereby ensuring the stability and accuracy of the movement of the whole clamping mechanism;

[0040] When the rubber pad 7 needs to be installed, the sliding block 17 on one side of the rubber pad 7 is slid into the sliding groove 22 in the inside of the clamping block 6, at this time, the spring 21 in the cavity 20 in the sliding block 17 is in a natural state, the moving plate 19 is located in the cavity 20 on the side close to the rubber pad 7 under the action of the spring 21, so that the insertion block 18 is partially retracted in the cavity 20 and does not affect the sliding of the sliding block 17 into the sliding groove 22, when the sliding block 17 is completely slid into the sliding groove 22, the arc-shaped groove 24 on the surface of the clamping block 6 is aligned with one side of the insertion block 18 to form contact, and the rubber pad 7 and the sliding block 17 are continuously pushed upward, since the arc-shaped groove 24 is wider than the sliding groove 22, the insertion block 18 is facilitated to enter, and the sliding groove 22 is smaller in size, when the rubber pad 7 and the sliding block 17 are continuously moved upward, the sliding groove 22 can press the insertion block 18, and the insertion block 18 will drive the moving plate 19 to move to the inside of the cavity 20, so that the moving plate 19 presses the spring 21, and the insertion block 18 is partially inserted into the inside of the cavity 20, when the insertion block 18 moves to the surface of the insertion groove 23, the moving plate 19 and the insertion block 18 are pushed to the initial position by the elastic force of the spring 21, so that the insertion block 18 is inserted into the inside of the insertion groove 23 to form installation and fixation.

[0041] When the rubber pad 7 needs to be disassembled, a certain pressure is applied to the rubber pad 7, the rubber pad 7 drives the sliding block 17 to move, the moving plate 19 in the sliding block 17 compresses the spring 21 after being pressed, so that the spring 21 is deformed and shrinks, with the movement of the moving plate 19, the insertion block 18 connected to the moving plate 19 is withdrawn from the insertion groove 23 of the clamping block 6, at this time, the sliding block 17 is no longer locked with the clamping block 6, then the clamping block 6 is reversely slid along the sliding groove 22, so that the clamping block 6 can be disassembled from the sliding block 17 for use.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-made three-jaw chucking device, characterized in that, Include: The top of the fixed plate (3) is provided with the mounting plate (2), the top of the mounting plate (2) is provided with the air cylinder (1); Lifting disc (11) is arranged in the output end of the air cylinder (1), the bottom of the fixed plate (3) is connected with the concave block (8) at equal intervals; Mounting groove (12) is opened in the bottom of the fixed plate (3) at equal intervals, the inside of the concave block (8) is hinged with the inverted L-shaped block A (14), and the inverted L-shaped block A (14) extends to the inside of the mounting groove (12) at one end, the bottom of the concave block (8) is provided with clamping mechanism, the connecting block (10), clamping block (6) and inverted L-shaped block B (5) are moved through the clamping mechanism, so that the clamping block (6) clamps the workpiece required.

2. The self-made three-jaw chucking device according to claim 1, characterized in that, The clamping mechanism includes the elliptical groove (15) opened in one side of the inverted L-shaped block A (14), the surface of the lifting disc (11) is provided with the hinge groove (13), and the hinge groove (13) is aligned with the elliptical groove (15), the other end of the inverted L-shaped block A (14) is hinged at the bottom of the concave block (8), the inverted L-shaped block B (5) is hinged at the bottom of the inverted L-shaped block A (14), the connecting block (10) is hinged at the other side of the bottom of the concave block (8), the bottom of the connecting block (10) is connected to the surface of the inverted L-shaped block B (5), the clamping block (6) is connected to the inside of the inverted L-shaped block B (5), the inside of the clamping block (6) is provided with rubber pad (7), and the rubber pad (7) is provided between the clamping block (6).

3. The self-made three-jaw chuck according to claim 2, wherein, The concave block (8) is rotatably connected with the connecting block (10) and the inverted L-shaped block A (14) through the positioning pin A (9).

4. The self-made three jaw chuck as claimed in claim 2 wherein, The inverted L-shaped block B (5) is rotatably connected with the inverted L-shaped block A (14) and the connecting block (10) through the positioning pin B (4).

5. The self-made three jaw chuck as claimed in claim 3 wherein, The surface of the positioning pin A (9) and the positioning pin B (4) is respectively connected with the limiting pin (16).

6. The self-made three jaw chuck as claimed in claim 1 wherein, The fixed plate (3) and the mounting plate (2) are connected by bolts.

7. The self-made three jaw chuck as claimed in claim 2 wherein, The dismounting mechanism includes the sliding block (17) connected to one side of the rubber pad (7), the inside of the sliding block (17) is provided with the cavity (20) at the central position, the inside of the cavity (20) is connected with the spring (21), the inside of the cavity (20) is connected with the moving plate (19) at one side of the spring (21), one side of the surface of the moving plate (19) is connected with the plug-in block (18), and the inside of the clamping block (6) is provided with the sliding groove (22) for slidingly connecting the sliding block (17).

8. The self-made three jaw chuck as claimed in claim 7 wherein, The surface of the clamping block (6) is provided with the arc-shaped groove (24), and the inside of the clamping block (6) is provided with the plug-in groove (23) for plug-in connecting the plug-in block (18).

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