CN209815259U - Mechanical chuck - Google Patents

Abstract

The utility model discloses a mechanical chuck, which comprises a cylinder body, a piston plate, a sliding positioning piece, tiles and a return spring, wherein the tiles and the return spring are in one-to-one correspondence with the sliding blocks; the piston plate is sealed and is connected in the piston cavity in a sliding mode; the sliding positioning piece is connected with the piston plate, so that after the piston cavity is inflated through the air blowing port, the piston plate drives the sliding positioning piece to move, the sliding block is obliquely and slidably matched on the sliding positioning piece, and further the movement of the sliding positioning piece along the axial direction of the cylinder body is converted into the movement of the sliding block along the radial direction of the cylinder body; the tiles are connected to the outer surface of the slider. The utility model discloses can rolling aluminium foil well, also can be fast clamping tube-shape product, improved work efficiency.

Description

Mechanical chuck

Technical Field

The utility model relates to a mechanical chuck.

Background

The existing mechanical chuck is complex in structure mostly, inconvenient to use, difficult to guarantee the regularity and the concentricity of an aluminum foil roll when the aluminum foil roll is rolled, long in clamping cost time and low in clamping efficiency when clamping a cylindrical product, and difficult to guarantee the concentricity of a cylindrical object to influence the processing of the cylindrical product.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect, provide a mechanical chuck, it can rolling aluminium foil well, also can clamping tube-shape product fast, improved work efficiency.

In order to solve the technical problem, the technical scheme of the utility model is that: a mechanical chuck, comprising:

the cylinder body is provided with a piston cavity and an air blowing port communicated with the piston cavity, the wall of the cylinder body is inserted with at least two sliding blocks capable of sliding along the radial direction of the cylinder body, and all the sliding blocks are uniformly distributed along the circumferential direction of the cylinder body;

a piston plate sealed and slidably connected within the piston cavity;

the sliding positioning piece is connected with the piston plate, so that after the piston cavity is inflated through the air blowing port, the piston plate drives the sliding positioning piece to move, the sliding block is obliquely matched on the sliding positioning piece in a sliding manner, and the movement of the sliding positioning piece along the axial direction of the cylinder body is converted into the movement of the sliding block along the radial direction of the cylinder body;

the tiles are in one-to-one correspondence with the sliding blocks and are connected with the outer surfaces of the sliding blocks, so that when the sliding blocks move, the tiles are driven to move through sliding;

and the reset spring is arranged between the sliding positioning piece and the blind end of the cylinder body so as to drive the sliding positioning piece to reset through the reset spring after the piston cavity is deflated.

Further in order to prevent air leakage at the sliding fit position of the piston plate and the piston cavity, at least one sealing ring and at least one wear-resistant pad are arranged between the piston plate and the piston cavity.

Further in order to guide the compression direction of the reset spring, the mechanical chuck further comprises a guide post, the guide post is fixed on the piston plate, a through hole is formed in the sliding positioning piece, the guide post penetrates through the through hole, the reset spring is sleeved on the guide post, one end of the reset spring is abutted to the sliding positioning piece, and the other end of the reset spring is abutted to the blind end of the cylinder body.

Further, the sliding positioning part comprises a bottom wall and a peripheral wall connected with the bottom wall, the bottom wall is connected with the piston plate, and the sliding block is obliquely and slidably matched on the peripheral wall.

Further, the peripheral wall is provided with slider grooves corresponding to the sliders one to one, the bottom ends of the slider grooves are arranged from the end where the piston cavity of the cylinder body is located to the blind end of the cylinder body in a downward inclined mode, the lower surfaces of the sliders are inclined planes matched with the slider grooves, and the sliders are slidably matched in the corresponding slider grooves.

Further in order to prevent the deformation of the sliding positioning piece, the mechanical chuck further comprises a pressure resisting disc, the pressure resisting disc is connected to the peripheral wall, and the pressure resisting disc is parallel to the bottom wall.

Further, in order to facilitate connection between the tiles and the sliding blocks, key bars are further arranged between the sliding blocks and the corresponding tiles.

Further, the end of the cylinder body far away from the piston cavity is connected with a supporting plate to form a blind end.

Further, the tiles are connected with the corresponding sliding blocks through bolts.

After the technical scheme is adopted, the air is blown into the piston cavity through the air blowing port, the piston plate moves rightwards under the action of the atmosphere, the sliding positioning piece moves rightwards along with the piston plate, the slider moves outwards along the radial direction of the cylinder body under the pushing of the inclined plane of the sliding positioning piece, the slider pushes the tile to move outwards along the radial direction of the cylinder body, the utility model discloses can well tighten products, in the process of moving rightwards of the piston plate, the reset spring is compressed, after the air is discharged from the piston cavity, the sliding positioning piece and the piston plate move leftwards under the action of the elastic force of the reset spring, the sliding positioning piece pulls the slider and the tile to move inwards in the radial direction of the cylinder body, then the utility model discloses can loosen products, the utility model has reasonable structure and convenient operation, can be well used for rolling aluminum foils, improves the uniformity and concentricity of rolling, and can also be applied to a machine tool, and can clamp, the clamping efficiency is improved, the concentricity is high, and the cylindrical product is precisely machined on the outer circle.

Drawings

Fig. 1 is a schematic structural view of a mechanical chuck according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a left side view of a portion a of fig. 2.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1 ~ 3, a mechanical chuck comprising:

the cylinder comprises a cylinder body 1, wherein the cylinder body 1 is provided with a piston cavity 11 and an air blowing port 12 communicated with the piston cavity 11, at least two sliding blocks 5 capable of sliding along the radial direction of the cylinder body 1 are inserted into the wall of the cylinder body 1, and all the sliding blocks 5 are uniformly distributed along the circumferential direction of the cylinder body 1;

a piston plate 4, wherein the piston plate 4 is hermetically and slidably connected in the piston cavity 11;

the sliding positioning part is connected with the piston plate 4, so that after the piston cavity 11 is inflated through the air blowing port 12, the piston plate 4 drives the sliding positioning part to move, the sliding block 5 is obliquely matched on the sliding positioning part in a sliding manner, and further the movement of the sliding positioning part along the axial direction of the cylinder body 1 is converted into the movement of the sliding block 5 along the radial direction of the cylinder body 1;

the tiles 6 correspond to the sliding blocks 5 one by one, and the tiles 6 are connected with the outer surfaces of the sliding blocks 5 so as to drive the tiles 6 to move through sliding when the sliding blocks 5 move;

and the return spring 7 is arranged between the sliding positioning piece and the blind end of the cylinder body 1, so that the sliding positioning piece is driven to reset through the return spring 7 after the piston cavity 11 is deflated. In this embodiment, the end of the cylinder 1 remote from the piston chamber 11 is connected to a support plate 13 to form a blind end. The tiles 6 are connected to the respective slides 5 by means of bolts. Six tiles 6 and six sliders 5 are provided.

As shown in fig. 1, in order to prevent air leakage at the sliding fit between the piston plate 4 and the piston cavity 11, at least one sealing ring 81 and at least one wear pad 82 are disposed between the piston plate 4 and the piston cavity 11.

As shown in fig. 1 and 2, the mechanical chuck further comprises a guide post 10, the guide post 10 is fixed on the piston plate 4, a through hole is formed in the sliding positioning part, the guide post 10 penetrates through the through hole, the reset spring 7 is sleeved on the guide post 10, one end of the reset spring 7 is abutted to the sliding positioning part, and the other end of the reset spring 7 is abutted to the blind end of the cylinder body 1. For guiding the compression direction of the return spring 7

As shown in fig. 1 and 2, the sliding positioning member includes a bottom wall 21 and a peripheral wall 22 connected to the bottom wall 21, the bottom wall 21 is connected to the piston plate 4, and the slider 5 is obliquely slidably fitted on the peripheral wall 22.

As shown in fig. 1, 2 and 3, the peripheral wall 22 is provided with slider grooves 3 corresponding to the sliders 5 one by one, the bottom ends of the slider grooves 3 are arranged to be inclined downward from the end of the cylinder 1 where the piston cavity 11 is located to the blind end of the cylinder 1, the lower surface of the slider 5 is an inclined surface matched with the slider grooves 3, and the sliders 5 are slidably matched in the corresponding slider grooves 3.

As shown in fig. 1 and 2, in order to prevent the deformation of the slide positioning element, the mechanical chuck further comprises a pressure resisting plate 23, wherein the pressure resisting plate 23 is connected to the peripheral wall 22, and the pressure resisting plate 23 is parallel to the bottom wall 21.

As shown in fig. 1 and 2, in order to facilitate the connection between the tiles 6 and the sliding block 5, a key strip 9 is further provided between the sliding block 5 and the corresponding tile 6.

The working principle of the utility model is as follows:

the utility model blows air into the piston cavity 11 through the blowing port 12, the piston plate 4 moves to the right under the action of the atmosphere, the sliding positioning piece moves to the right along with the piston plate 4, the slide block 5 moves outwards along the radial direction of the cylinder body 1 under the pushing of the inclined plane of the sliding positioning piece, the slide block 5 pushes the tile 6 outwards along the radial direction of the cylinder body 1, then the utility model discloses can well tension the product, in the process of moving to the right of the piston plate 4, the reset spring 7 is compressed, after the air is discharged from the piston cavity 11, the sliding positioning piece and the piston plate 4 move to the left under the action of the elastic force of the reset spring 7, the sliding positioning piece pulls the slide block 5 and the tile 6 to move inwards in the radial direction of the cylinder body 1, then the utility model discloses can loosen the product, the utility model discloses rational in structure, convenient operation, can be well used for the aluminum foil, improves the rolling degree and concentricity of rolling, the clamping time is short, the clamping efficiency is improved, the concentricity is high, and the cylindrical product is precisely machined on the outer circle.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. A mechanical chuck, comprising:

the cylinder body (1) is provided with a piston cavity (11) and an air blowing port (12) communicated with the piston cavity (11), at least two sliding blocks (5) capable of sliding along the radial direction of the cylinder body (1) are inserted into the wall of the cylinder body (1), and all the sliding blocks (5) are uniformly distributed along the circumferential direction of the cylinder body (1);

a piston plate (4), wherein the piston plate (4) is hermetically and slidably connected in the piston cavity (11);

the sliding positioning piece is connected with the piston plate (4), so that after the piston cavity (11) is inflated through the air blowing port (12), the piston plate (4) drives the sliding positioning piece to move, the sliding block (5) is obliquely matched on the sliding positioning piece in a sliding manner, and further the axial movement of the sliding positioning piece along the cylinder body (1) is converted into the radial movement of the sliding block (5) along the cylinder body (1);

the tiles (6) correspond to the sliding blocks (5) one by one, and the tiles (6) are connected with the outer surfaces of the sliding blocks (5) so that the tiles (6) are driven to move by sliding when the sliding blocks (5) move;

the reset spring (7), the reset spring (7) sets up between the blind end of sliding location spare and cylinder body (1) to after piston chamber (11) gassing, drive the sliding location spare through reset spring (7) and reset.

2. A mechanical chuck according to claim 1, wherein: at least one sealing ring (81) and at least one wear pad (82) are arranged between the piston plate (4) and the piston cavity (11).

3. A mechanical chuck according to claim 1, wherein: still include guide post (10), guide post (10) are fixed on piston plate (4), be provided with the through-hole on the slip setting element, guide post (10) pass the through-hole, reset spring (7) suit is in on guide post (10), reset spring (7) one end with slip setting element looks butt, reset spring (7) the other end with the blind end looks butt of cylinder body (1).

4. A mechanical chuck according to claim 1, wherein: the sliding positioning piece comprises a bottom wall (21) and a peripheral wall (22) connected with the bottom wall (21), the bottom wall (21) is connected with the piston plate (4), and the sliding block (5) is obliquely and slidably matched on the peripheral wall (22).

5. The mechanical chuck according to claim 4, wherein: the peripheral wall (22) is provided with slider grooves (3) which are in one-to-one correspondence with the sliders (5), the bottom ends of the slider grooves (3) are arranged from the end where the piston cavity (11) of the cylinder body (1) is located to the blind end of the cylinder body (1) in a downward inclined mode, the lower surface of each slider (5) is an inclined surface matched with the corresponding slider groove (3), and the sliders (5) are arranged in the corresponding slider grooves (3) in a sliding mode.

6. The mechanical chuck according to claim 4, wherein: the anti-pressing plate (23) is connected to the peripheral wall (22), and the anti-pressing plate (23) is parallel to the bottom wall (21).

7. A mechanical chuck according to claim 1, wherein: and a key strip (9) is also arranged between the sliding block (5) and the corresponding tile (6).

8. A mechanical chuck according to claim 1, wherein: the end of the cylinder body (1) far away from the piston cavity (11) is connected with a supporting plate (13) to form a blind end.

9. A mechanical chuck according to claim 1, wherein: the tiles (6) are connected with the corresponding sliding blocks (5) through bolts.