CN217123209U

CN217123209U - Pneumatic composite clamping jaw

Info

Publication number: CN217123209U
Application number: CN202221021001.0U
Authority: CN
Inventors: 付金木; 蔡欢; 徐鸿庆
Original assignee: Hangzhou Youjia Automation Technology Co ltd
Current assignee: Hangzhou Youjia Automation Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-05
Anticipated expiration: 2032-04-29

Abstract

The utility model relates to the technical field of pneumatic clamps, in particular to a pneumatic composite clamping jaw, which comprises a main body block, two clamping jaws, a cylinder, a bottom plate and a buffer block; the bottom surface of the main body block is provided with a vacuum generating cavity which is connected with a vacuum source through an air source hole; the bottom plate is fixed on the bottom surface of the main body block and is provided with a group of throttling holes communicated with the vacuum generating cavity, the buffer block is fixed on the bottom surface of the bottom plate, and the buffer block is provided with adsorption holes corresponding to the throttling holes one by one; the two clamping jaws are respectively arranged at two ends of the main body block, one clamping jaw is fixedly connected with the main body block, and the other clamping jaw is driven by an air cylinder fixed on the main body block. The utility model discloses can be applicable to the centre gripping of the thin slice type work piece of tiling, and have simple structure, convenient to use's technical characterstic.

Description

Pneumatic composite clamping jaw

Technical Field

The utility model belongs to the technical field of pneumatic fixture technique and specifically relates to a pneumatic compound clamping jaw.

Background

The thin sheet type workpiece is widely applied in industries such as industry, food, medical treatment, commerce, packaging and the like. The direction in which technicians have difficulty in stabilizing and moving end effectors, such as the jaws of a robot, between stations during the manufacture of thin sheet-type workpieces or assembly as part of other products. In the assembly line, for the stacked sheet-type workpieces, the clamping jaws of the manipulator can clamp the sheet-type workpieces from two sides conveniently, but for the sheet-type workpieces which are laid in a row, when the clamping jaws clamp the sheet-type workpieces from two ends, the sheet-type workpieces in the middle part are extruded by the clamping jaws and are easy to arch upwards or downwards, so that all the sheet-type workpieces fall off, and the clamping failure of the manipulator is still solved.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, providing a pneumatic compound clamping jaw, can be applicable to the centre gripping of the thin slice type work piece that tiles, and have simple structure, convenient to use's technical characterstic.

The technical purpose of the utility model is realized like this:

a pneumatic composite clamping jaw comprises a main body block, two clamping jaws, a cylinder, a bottom plate and a buffer block; the bottom surface of the main body block is provided with a vacuum generating cavity which is connected with a vacuum source through an air source hole; the bottom plate is fixed on the bottom surface of the main body block and is provided with a group of throttling holes communicated with the vacuum generating cavity, the buffer block is fixed on the bottom surface of the bottom plate, and the buffer block is provided with adsorption holes corresponding to the throttling holes one by one; the two clamping jaws are respectively arranged at two ends of the main body block, one clamping jaw is fixedly connected with the main body block, and the other clamping jaw is driven by an air cylinder fixed on the main body block.

Preferably, the main body block is provided with a vacuum detection hole, and the vacuum detection hole is communicated with the vacuum generation cavity.

Preferably, the diameter of the adsorption hole is 2 to 5 times that of the orifice.

Preferably, the bottom plate is sealed with the bottom surface of the main body block.

The utility model has the advantages that: the utility model discloses in the clamping jaw centre gripping, carry out vacuum adsorption to all thin slice type work pieces, cushion by the buffer block, can effectively avoid going the thin slice type work piece at middle part to drop because of encircleing, can make all thin slice type work pieces closely arrange simultaneously, in addition, the orifice aperture on the bottom plate is less than the adsorption hole, can realize the throttle effect, reduces the consumption of vacuum source, still has simple structure, convenient to use's technical characterstic.

Drawings

Fig. 1 is one of the schematic perspective views of the present invention.

Fig. 2 is a second schematic perspective view of the present invention.

Fig. 3 is a schematic side view of the present invention.

FIG. 4 is a sectional view A-A of FIG. 3

The figure shows that: the vacuum clamping device comprises a main body block 1, a bottom plate 2, a buffer block 3, a clamping jaw 4, an air source hole 5, a vacuum detection hole 6, an air cylinder 7, a throttling hole 8, a counter bore 9, an adsorption hole 10, a guide groove 11 and a vacuum generation cavity 12.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.

In the description of the present invention, it is to be noted that unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be understood as specific conditions by those of ordinary skill in the art.

As shown in fig. 1 to 4, the utility model provides a pneumatic composite clamping jaw, which comprises a main body block 1, two clamping jaws 4, a cylinder 7, a bottom plate 2 and a buffer block 3. The vacuum detection device is characterized in that the main body block 1 is in a cuboid shape, the bottom surface of the main body block is provided with an inwards concave vacuum generation cavity 12, the top of the main body block 1 is provided with an air source hole 5 and a vacuum detection hole 6 which penetrate through the vacuum generation cavity 12 downwards, the air source hole 5 is connected with a vacuum source (such as a directly-mounted vacuum generator), and the vacuum detection hole 6 is used for being connected with a vacuum detection device.

The bottom plate 2 is fixed on the bottom surface of the main body block 1 through a counter bore 9 and a counter head screw, and is sealed with the bottom surface of the main body block 1 through a sealing ring. The edges of the bottom plate 2 are flush with the peripheral edges of the body pieces 1, completely covering the vacuum generating chamber 12. The bottom plate 2 is provided with a group of orifices 8 which are arranged in an array, and all the orifices 8 are communicated with the vacuum generation cavity 12.

The buffer block 3 is preferably a sponge block and is fixed on the bottom surface of the bottom plate 2 in an adhesive manner, and the edge of the buffer block is flush with the peripheral edges of the bottom plate 2 and the main body block 1. The buffer block 3 is provided with adsorption holes 10 corresponding to the orifices 8 one by one, and the aperture of the adsorption holes 10 is 2-5 times of that of the orifices 8. For example, in one embodiment, the orifice 8 has a hole diameter of 0.5mm and the suction hole 10 has a hole diameter of 2mm, so that the atmospheric air can be reduced when the sheet-type workpiece is not sucked, and the degree of vacuum of the vacuum generation chamber 12 can be maintained within a certain range.

The two clamping jaws 4 are respectively arranged at two ends of the main body block 1, one clamping jaw 4 is fixedly connected with the end face of the main body block 1, the other clamping jaw 4 is driven by a cylinder 7 fixed on the main body block 1, and the cylinder body of the cylinder 7 avoids the air source hole 5 and the vacuum detection hole 6. Obviously, the lower ends of the jaws 4 extend a certain length beyond the bottom surface of the buffer block 3. The cylinder 7 preferably adopts a double-rod cylinder, and a cylinder body of the cylinder 7 is provided with a guide groove 11 for matching with an external guide rail or an optical axis.

The utility model discloses a theory of operation is: before clamping, the air cylinder 7 is ejected out, the distance between the two clamping jaws 4 is enlarged, the vacuum source is started to enable the vacuum generation cavity 12 to generate negative pressure, the external driving structure drives the whole composite clamping jaw to move to the position above the sheet type workpieces arranged in a line, then the whole composite clamping jaw is driven to descend, the bottom surface of the buffer block 3 is made to contact with the sheet type workpieces, the adsorption holes 10 are blocked by the sheet type workpieces to generate negative pressure, the sheet type workpieces are upwards adsorbed, the sheet type workpieces are prevented from falling downwards, then the air cylinder 7 retracts, the two clamping jaws 4 clamp the two ends of the line of sheet type workpieces, all the sheet type workpieces are tightly arranged, the external driving structure drives the whole composite clamping jaw to upwards lift, and the sheet type workpieces are transferred between stations.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic composite clamping jaw is characterized in that: comprises a main body block (1), two clamping jaws (4), a cylinder (7), a bottom plate (2) and a buffer block (3); the bottom surface of the main body block (1) is provided with a vacuum generating cavity (12), and the vacuum generating cavity (12) is connected with a vacuum source through an air source hole (5); the bottom plate (2) is fixed on the bottom surface of the main body block (1), a group of throttling holes (8) communicated with the vacuum generating cavity (12) are formed in the bottom surface of the main body block, the buffer block (3) is fixed on the bottom surface of the bottom plate (2), and the buffer block (3) is provided with adsorption holes (10) which are in one-to-one correspondence with the throttling holes (8); the two clamping jaws (4) are respectively arranged at two ends of the main body block (1), one clamping jaw (4) is fixedly connected with the main body block (1), and the other clamping jaw (4) is driven by a cylinder (7) fixed on the main body block (1).

2. A pneumatic composite jaw as claimed in claim 1, wherein: the main body block (1) is provided with a vacuum detection hole (6), and the vacuum detection hole (6) is communicated with the vacuum generation cavity (12).

3. A pneumatic composite jaw as claimed in claim 1 or 2, wherein: the aperture of the adsorption hole (10) is 2-5 times of that of the throttling hole (8).

4. A pneumatic composite jaw as claimed in claim 1 or 2, wherein: the bottom plate (2) and the bottom surface of the main body block (1) are sealed.