CN215046774U

CN215046774U - Clamping mechanism

Info

Publication number: CN215046774U
Application number: CN202120684596.7U
Authority: CN
Inventors: 刘利平; 徐义东
Original assignee: Guanghzou Hongli Automation Technology Co ltd
Current assignee: Guanghzou Hongli Automation Technology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-07
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to a clamping mechanism, which comprises a telescopic head and a telescopic driving piece, wherein the telescopic driving piece is used for driving the telescopic head to do telescopic motion; the clamping device is characterized by also comprising at least one clamping seat, wherein each clamping seat is hinged with a clamping arm, and a clamping position is formed between each clamping arm and the corresponding clamping seat; the clamping arm is provided with a waist hole, the telescopic head is provided with a first hinge, and the first hinge penetrates through the waist hole to hinge the telescopic head and the clamping arm; when the telescopic head is in telescopic motion, the clamping arm is driven to rotate on the clamping seat, so that the width of the clamping position is changed, and a workpiece is clamped or loosened. The technical problem that a hinge connected between a clamping arm and a cylinder head is easy to fall off in the prior art is solved.

Description

Clamping mechanism

Technical Field

The utility model belongs to the technical field of anchor clamps and specifically relates to a fixture is related to.

Background

Referring to fig. 1, in the three-jaw clamping mechanism in the prior art, a waist hole is formed in a three-jaw cylinder head, a hinge is arranged on a clamping arm, two ends of the hinge extend out of two sides of the clamping arm and are inserted into the waist hole, so that the clamping arm is hinged to the three-jaw cylinder head, and the telescopic motion of a cylinder can drive the clamping arm to swing. In this way, in order to fix the hinge to the clamping arm, through holes need to be formed in the clamping arm and the hinge, and then the jackscrew is inserted to realize fixation. Therefore, a new structure is needed to overcome this drawback.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a fixture, solve among the prior art technical problem that the hinge of being connected between centre gripping arm and the cylinder head drops easily.

The purpose of the utility model is realized through the following technical scheme:

a clamping mechanism comprises a telescopic head and a telescopic driving piece, wherein the telescopic driving piece is used for driving the telescopic head to do telescopic motion;

the clamping device is characterized by also comprising at least one clamping seat, wherein each clamping seat is hinged with a clamping arm, and a clamping position is formed between each clamping arm and the corresponding clamping seat;

the clamping arm is provided with a waist hole, the telescopic head is provided with a first hinge, and the first hinge penetrates through the waist hole to hinge the telescopic head and the clamping arm; when the telescopic head is in telescopic motion, the clamping arm is driven to rotate on the clamping seat, so that the width of the clamping position is changed, and a workpiece is clamped or loosened.

Furthermore, in the scheme, the first step of the method,

the holder has threely, three the holder equidistance encircles the setting and is in the flexible head periphery.

Furthermore, in the scheme, the first step of the method,

the telescopic driving piece is an air cylinder, a supporting plate is arranged on the telescopic driving piece, a telescopic rod of the telescopic driving piece penetrates through the supporting plate and is connected with the telescopic head, and the clamping seat is fixedly installed on the supporting plate.

Furthermore, in the scheme, the first step of the method,

each first hinge corresponds to two hinge mounting plates which are arranged in parallel, and a space allowing the clamping arm to be inserted is reserved between the two hinge mounting plates; the both ends of first hinge pass both sides the hinge mount board and then realize fixing flexible overhead, the centre gripping arm has the part in waist hole inserts two realize between the hinge mount board with the connection of first hinge.

Furthermore, in the scheme, the first step of the method,

and two ends of the first hinge are respectively clamped on the hinge mounting plates through clamp springs.

Furthermore, in the scheme, the first step of the method,

the clamping arm comprises a clamping arm body and a pressing block, the pressing block is detachably mounted on the clamping arm body, and the pressing block and the clamping seat form the clamping position.

Furthermore, in the scheme, the first step of the method,

and a detachable adjusting gasket is arranged between the clamping arm body and the pressing block.

Furthermore, in the scheme, the first step of the method,

the clamping seat comprises a clamping seat body and a cushion block, the cushion block is detachably mounted on the clamping seat body, and the clamping position is formed between the cushion block and the pressing block.

Furthermore, in the scheme, the first step of the method,

one side of the clamping seat body, which is close to the telescopic head, is provided with a second hinge, and the clamping arm body is hinged with the clamping seat body through the second hinge.

The utility model discloses following beneficial effect has: the utility model discloses a clamping mechanism, wherein a waist hole is arranged on a clamping arm, a first hinge is arranged on a telescopic head, and the first hinge passes through the waist hole to realize the hinging of the clamping arm and the telescopic head; in this structure, because first hinge sets up on flexible overhead, so when being fixed first hinge to flexible overhead, can adopt and carry out the reinforced mode of chucking respectively at the both ends of first hinge and fix first hinge, compare in prior art and adopt the jackscrew to carry out the mode fixed with the hinge in the middle part of the centre gripping arm, the fixed effect of this scheme structure is more firm, and first hinge is difficult for droing. The original structure is slightly changed, the required precision requirement can be met by the conventional processing technology, the material cost is low, no waste is caused, the structure positioning precision and rigidity are met, the mechanical action is coherent and smooth, the mechanical faults are reduced, the cost is reduced, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a three-jaw clamping mechanism in the prior art;

fig. 2 is a schematic structural view of the clamping mechanism of the present invention;

FIG. 3 is a schematic view of the clamping mechanism of the present invention with a partially disassembled structure;

fig. 4 is an enlarged schematic view of the area a in fig. 3.

The specific structure in the figure illustrates that: the device comprises a telescopic driving piece 1, a telescopic head 2, a supporting plate 3, a clamping seat 4, a clamping seat body 41, a cushion block 42, a clamping arm 5, a clamping arm body 51, a pressing block 52, a waist hole 53, an adjusting gasket 54, a first hinge 55, a hinge mounting plate 56, a second hinge 57 and a clamping position 6.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

Referring to fig. 2, the clamping mechanism includes a telescopic head 2 and a telescopic driving member 1, wherein the telescopic driving member 1 is used for driving the telescopic head 2 to perform telescopic motion;

the clamping device further comprises at least one clamping seat 4, each clamping seat 4 is hinged with a clamping arm 5, and a clamping position 6 is formed between each clamping arm 5 and each clamping seat 4;

a waist hole 53 is formed in the clamping arm 5, a first hinge 55 is arranged on the telescopic head 2, and the first hinge 55 penetrates through the waist hole 53 so as to hinge the telescopic head 2 and the clamping arm 5; when the telescopic head 2 is in telescopic motion, the clamping arm 5 is driven to rotate on the clamping seat 4, so that the width of the clamping position 6 is changed, and a workpiece is clamped or loosened.

Referring to fig. 2, when a workpiece needs to be clamped and locked, the telescopic head 2 moves downwards to drive the clamping arm 5 to rotate and open, and at the moment, the width of the clamping position 6 between the clamping seat 4 and the clamping arm 5 is increased, so that the part of the workpiece needing to be clamped can be easily inserted into the clamping position 6; after a workpiece is placed in the clamping device, the telescopic head 2 is lifted to drive the clamping arm 5 to rotate and close, at the moment, the width of the clamping position 6 between the clamping seat 4 and the clamping arm 5 is reduced, and the clamping of the workpiece can be realized by the clamping seat 4 and the clamping arm 5.

Furthermore, in the scheme, the first step of the method,

the holder 4 has threely, three the setting is encircleed to holder 4 equidistance is in the periphery of flexible head 2. The three clamping seats 4 are arranged, so that the three clamping arms 5 can be driven to move by using one telescopic driving piece 1, namely, one action can be realized, three workpieces can be clamped simultaneously, the equipment cost is saved, and the production efficiency is improved.

Furthermore, in the scheme, the first step of the method,

the telescopic driving piece 1 is an air cylinder, a supporting plate 3 is arranged on the telescopic driving piece 1, a telescopic rod of the telescopic driving piece 1 penetrates through the supporting plate 3 and is connected with the telescopic head 2, and the clamping seat 4 is installed and fixed on the supporting plate 3.

Furthermore, in the scheme, the first step of the method,

referring to fig. 3, each of the first hinges 55 has two hinge mounting plates 56 disposed in parallel, and a space allowing the clamp arm 5 to be inserted is left between the two hinge mounting plates 56; two ends of the first hinge 55 penetrate through the hinge mounting plates 56 at two sides to be fixed on the telescopic head 2, and the part of the clamping arm 5 with the waist hole 53 is inserted between the two hinge mounting plates 56 to be connected with the first hinge 55.

Furthermore, in the scheme, the first step of the method,

two ends of the first hinge 55 are respectively clamped on the hinge mounting plates 56 through clamp springs. The clamping spring clamping mode is adopted, and the device has the advantages of convenience in installation, good fixation and difficulty in loosening and falling.

Furthermore, in the scheme, the first step of the method,

the clamping arm 5 comprises a clamping arm body 51 and a pressing block 52, the pressing block 52 is detachably mounted on the clamping arm body 51, and the clamping position 6 is formed between the pressing block 52 and the clamping seat 4. The detachable pressing block 52 is arranged, the pressing block 52 is used as a part of the clamping part, which is contacted with a workpiece, and can be made of materials which meet the clamping requirements of the workpiece, and the clamping arm body 51 can be made of materials which have lower requirements and lower cost, so that the use requirements can be met, and the material cost of equipment can be saved.

Furthermore, in the scheme, the first step of the method,

a detachable adjusting gasket 54 is arranged between the clamping arm body 51 and the pressing block 52. The adjusting gasket 54 is arranged, the installation height of the pressing block 52 can be adjusted by installing the adjusting gasket 54 with different thicknesses, and the width and the clamping force of the clamping position 6 can be adjusted.

Furthermore, in the scheme, the first step of the method,

the holder 4 comprises a holder body 41 and a cushion block 42, the cushion block 42 is detachably mounted on the holder body 41, and the holding position 6 is formed between the cushion block 42 and the pressing block 52. Similarly, the cushion block 42 can be made of a material meeting the workpiece clamping requirements, and the clamping seat body 41 can be made of a common material, so that the use requirements can be met, and the material cost of the equipment can be saved.

Furthermore, in the scheme, the first step of the method,

one side of the clamping seat body 41 close to the telescopic head 2 is provided with a second hinge 57, and the clamping arm body 51 is hinged to the clamping seat body 41 through the second hinge 57.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, that is, all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. A fixture, its characterized in that:

the telescopic head comprises a telescopic head (2) and a telescopic driving piece (1), wherein the telescopic driving piece (1) is used for driving the telescopic head (2) to do telescopic motion;

the clamping device is characterized by further comprising at least one clamping seat (4), wherein each clamping seat (4) is hinged with a clamping arm (5), and a clamping position (6) is formed between each clamping arm (5) and each clamping seat (4);

a waist hole (53) is formed in the clamping arm (5), a first hinge (55) is arranged on the telescopic head (2), and the first hinge (55) penetrates through the waist hole (53) so as to enable the telescopic head (2) to be hinged to the clamping arm (5); when the telescopic head (2) is in telescopic motion, the clamping arm (5) is driven to rotate on the clamping seat (4), so that the width of the clamping position (6) is changed, and a workpiece is clamped or loosened.

2. A clamping mechanism as claimed in claim 1, wherein:

the clamping seat (4) is three, and the clamping seat (4) is arranged around the periphery of the telescopic head (2) in an equidistant mode.

3. A clamping mechanism as claimed in claim 2, wherein:

the telescopic driving piece (1) is an air cylinder, a supporting plate (3) is arranged on the telescopic driving piece (1), a telescopic rod of the telescopic driving piece (1) penetrates through the supporting plate (3) and is connected with the telescopic head (2), and the clamping seat (4) is installed and fixed on the supporting plate (3).

4. A clamping mechanism as claimed in claim 1, wherein:

each first hinge (55) corresponds to two hinge mounting plates (56) which are arranged in parallel, and a space for allowing the clamping arm (5) to be inserted is reserved between the two hinge mounting plates (56); the two ends of the first hinge (55) penetrate through the hinge mounting plates (56) on the two sides to be fixed on the telescopic head (2), and the part, provided with the waist hole (53), of the clamping arm (5) is inserted into the two hinge mounting plates (56) to be connected with the first hinge (55).

5. A clamping mechanism as claimed in claim 4, wherein:

and two ends of the first hinge (55) are clamped on the hinge mounting plates (56) through clamp springs respectively.

6. A clamping mechanism as claimed in claim 1, wherein:

the clamping arm (5) comprises a clamping arm body (51) and a pressing block (52), the pressing block (52) is detachably mounted on the clamping arm body (51), and the clamping position (6) is formed between the pressing block (52) and the clamping seat (4).

7. A clamping mechanism as claimed in claim 6, wherein: a detachable adjusting gasket (54) is arranged between the clamping arm body (51) and the pressing block (52).

8. A clamping mechanism as claimed in claim 6, wherein:

the clamping seat (4) comprises a clamping seat body (41) and a cushion block (42), the cushion block (42) is detachably mounted on the clamping seat body (41), and the clamping position (6) is formed between the cushion block (42) and the pressing block (52).

9. A clamping mechanism as claimed in claim 8, wherein: one side of the clamping seat body (41) close to the telescopic head (2) is provided with a second hinge (57), and the clamping arm body (51) is hinged to the clamping seat body (41) through the second hinge (57).