CN214187247U

CN214187247U - Pneumatic three-jaw of cylinder drive hinge transmission formula

Info

Publication number: CN214187247U
Application number: CN202023267322.2U
Authority: CN
Inventors: 唐福成; 嘉藤栄次; 周文豪
Original assignee: Star Seiki Xiangyang Co ltd
Current assignee: Star Seiki Xiangyang Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-14
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a pneumatic three-jaw of cylinder driven hinge transmission type, which comprises a cylinder body, wherein the cylinder body is fixedly connected with a hinge; the upper part of the hinge is connected with a bush which can rotate around the hinge; the bushing is fixedly connected with a supporting plate; three sliding chutes distributed in an annular array are arranged on the supporting plate; the support plate, hinge and bushing are coaxial; the bottom of the supporting plate is fixedly connected with a transmission shaft; a piston of the cylinder body is provided with a U-shaped groove for accommodating the transmission shaft; the axis of the piston is vertical to the axis of the hinge; the top of the cylinder body is connected with three finger mounting blocks which are distributed in an annular array and used for mounting fingers in a sliding manner; the bottom of the finger mounting block is fixedly connected with a finger transmission pin; the finger driving pin is inserted into the sliding groove on the supporting plate. The utility model has the advantages of simple structure and reasonable design, need not the die sinking customization, the processing degree of difficulty is lower with manufacturing cost, and snatchs or press from both sides and get effectual, and the repeatability is high.

Description

Pneumatic three-jaw of cylinder drive hinge transmission formula

Technical Field

The utility model belongs to the technical field of industrial automation equipment, concretely relates to pneumatic three-jaw of cylinder drive hinge transmission formula.

Background

At present, most three-jaw cylinders used in the market adopt wedge-shaped structure transmission, the grabbing torque of the transmission mode is stable, the repetition precision is high, and the double-acting cylinder can realize bidirectional grabbing and is popular in the market. However, the transmission mode has many defects, if mass production is to be realized, the wedge-shaped structure needs to be opened and customized, and after opening the mold, processes such as secondary processing and deburring are needed, so that the processing difficulty and the production cost are high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide the pneumatic three-jaw of cylinder drive hinge transmission formula, effectively solve current pneumatic three-jaw and need the die sinking customization, the higher problem of the processing degree of difficulty and manufacturing cost.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the pneumatic three-jaw transmission type air cylinder driving hinge comprises an air cylinder body, wherein a hinge is fixedly connected with the air cylinder body; the upper part of the hinge is connected with a bushing which can rotate around the hinge; the bushing is fixedly connected with a supporting plate; the supporting plate is provided with three sliding chutes distributed in an annular array; the support plate, hinge and bushing are coaxial; the bottom of the supporting plate is fixedly connected with a transmission shaft; a piston of the cylinder body is provided with a U-shaped groove for accommodating the transmission shaft; the axis of the piston is vertical to the axis of the hinge; the top of the cylinder body is connected with three finger mounting blocks which are distributed in an annular array and used for mounting fingers in a sliding mode; the bottom of the finger mounting block is fixedly connected with a finger transmission pin; the finger driving pin is inserted into the sliding groove on the supporting plate.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, a forced air groove is formed in the piston; the hinge passes through the evacuation slot.

Furthermore, the pneumatic three-jaw also comprises a shaft snap ring for preventing the support plate from falling off.

Further, the cylinder body is fixedly connected with two end covers.

Further, an O-shaped ring for improving the sealing performance is arranged between the end cover and the cylinder body.

Further, install the spacing snap ring that is used for preventing that the end cap from being pushed out by atmospheric pressure on the cylinder body.

Further, a PSD seal ring for improving sealability is mounted on the piston.

Further, the finger mounting block is in interference fit with the finger transmission pin; the support plate is in interference fit with the transmission shaft.

Further, the top of the cylinder body is fixedly connected with an upper cover; the upper cover is annular, and the inner side of the upper cover is fixedly connected with a cover plate.

Further, the finger mounting block is in a convex shape; the cylinder body and the upper cover are provided with accommodating grooves in sliding fit with the finger mounting blocks.

The utility model has the advantages that: the utility model has the advantages of simple structure and reasonable design, need not the die sinking customization, the processing degree of difficulty is lower with manufacturing cost. Utilize piston drive transmission shaft and backup pad to use the hinge to do circular motion as the center, the spout in the backup pad drives finger drive pin and finger installation piece and moves together to drive three fingers and do the switching action, realize snatching or press from both sides the purpose of getting the product, and snatch or press from both sides and get effectually, repeatability is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial schematic structural view (side view) of the present invention;

fig. 3 is a partial structural schematic view (front view) of the present invention;

fig. 4 is a partial structural schematic view (three-dimensional) of the present invention;

fig. 5 is a top view of the present invention;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 5;

fig. 8 is a schematic structural view (top view) of the support plate.

In the drawings, the components represented by the respective reference numerals are listed below:

1. cylinder body, 2, upper cover, 3, apron, 4, finger installation piece, 5, backup pad, 6, finger drive pin, 7, transmission shaft, 8, hinge, 9, bush, 10, for the axle snap ring, 11, piston, 12, end cover, 13, spacing snap ring, 14, O type circle, 15, PSD sealing washer.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are intended to be construed broadly, as if they were connected either fixedly or removably, or as integrally formed structures. To those of ordinary skill in the art, the specific meaning of such terms in this patent may be understood as appropriate.

As shown in fig. 1-8, the pneumatic three-jaw transmission type air cylinder driving hinge of the present invention comprises a cylinder body 1, wherein the cylinder body 1 is fixedly connected with a hinge 8; a bush 9 which can rotate around the hinge 8 is connected to the upper part of the hinge 8; the bush 9 is fixedly connected with a support plate 5; the supporting plate 5 is provided with three sliding chutes distributed in an annular array; the support plate 5, hinge 8 and bushing 9 are coaxial. The bottom of the supporting plate 5 is fixedly connected with a transmission shaft 7; and a piston 11 of the cylinder body 1 is provided with a U-shaped groove for accommodating the transmission shaft 7. Namely, the piston 11 and the transmission shaft 7 are in driving relation, and the transmission shaft 7 can rotate by the hinge 8 through the U-shaped groove. The axis of the piston 11 is perpendicular to the axis of the hinge 8. The top of the cylinder body 1 is connected with three finger mounting blocks 4 which are distributed in an annular array and used for mounting fingers in a sliding manner; the bottom of the finger mounting block 4 is fixedly connected with a finger transmission pin 6; the finger drive pin 6 is inserted into a slide groove on the support plate 5.

The pneumatic three-jaw utilizes the characteristic that the piston 11 moves left and right to drive the transmission shaft 7 and the supporting plate 5 to do circular motion by taking the hinge 8 as the center, and the sliding groove on the supporting plate 5 drives the finger transmission pin 6 fixedly connected with the finger installation block 4 to move together when the supporting plate 5 rotates, so that three fingers are driven to do opening and closing actions, and the purpose of grabbing or clamping a product is realized. Compared with the prior art, the structure is more simplified, die sinking customization is not needed, the processing difficulty and cost are obviously reduced, the grabbing or clamping effect is good, and the repetition precision is high. The maximum rotation angle of the transmission shaft 7 and the support plate 5 in the circular motion around the hinge 8 can be controlled by controlling the size (groove width) of the U-shaped groove.

As shown in fig. 1, the cylinder body 1 is provided with an air hole, and the piston 11 performs two operations (left and right movement) by ventilating the air hole.

As shown in fig. 4, 7 and 8, the sliding groove of the support plate 5 is an arc-shaped through hole, and the finger driving pin 6 passes through the through hole. Thereby further reducing the processing difficulty and the production cost.

As shown in fig. 3 and 6, a relief groove is formed on the piston 11, and the hinge 8 passes through the relief groove. Namely, the piston 11 and the hinge 8 are in a near-empty relationship, so that the working reliability and the grabbing effect of the pneumatic three-jaw are improved, and the piston 11 is effectively prevented from touching the hinge 8 when moving left and right.

As shown in fig. 6 and 7, the pneumatic three-jaw further includes a shaft snap ring 10 for preventing the support plate 5 from falling off, that is, the shaft snap ring 10 blocks the support plate 5, thereby effectively preventing the support plate 5 from falling off the bushing 9, and further improving the structural stability and the operational reliability of the pneumatic three-jaw.

As shown in fig. 3 and 6, two end covers 12 are fixedly connected to the cylinder body 1. An O-shaped ring 14 for improving the sealing performance is arranged between the end cover 12 and the cylinder body 1, so that the structural stability and the working reliability of the pneumatic three-jaw are further improved.

As shown in fig. 6, the cylinder body 1 is provided with a limiting snap ring 13 for preventing the end cover 12 from being pressed out by air pressure, that is, the limiting snap ring 13 blocks the end cover 12, so as to effectively prevent the end cover 12 from being separated from the cylinder body 1, and further improve the structural stability and the operational reliability of the pneumatic three-jaw.

As shown in fig. 6, a PSD sealing ring 15 for improving sealing performance is installed on the piston 11 to improve the sealing effect between the piston 11 and the cylinder body 1, and further improve the structural stability and the operational reliability of the pneumatic three-jaw.

Preferably,

finger installation piece

4 and 6 interference fit of finger drive round pin, in order to realize when

finger installation piece

4 and 6 fixed connection of finger drive round pin, reduce the processing degree of difficulty and manufacturing cost, in addition, improve pneumatic three-jaw's structure steadiness and operational reliability.

Backup pad

5 and 7 interference fit of transmission shaft, in order to realize when

backup pad

5 and 7 fixed connection of transmission shaft, reduce the processing degree of difficulty and manufacturing cost, in addition, improve pneumatic three-jaw's structure steadiness and operational reliability.

As shown in fig. 1, 5 and 7, an upper cover 2 is fixedly connected to the top of the cylinder body 1; the upper cover 2 is annular, and the inner side of the upper cover is fixedly connected with the cover plate 3, so that the structural stability of the pneumatic three-jaw is further improved.

As shown in fig. 1-4 and 7, the finger mounting block 4 is in a convex shape; be provided with on cylinder body 1 and the upper cover 2 with the holding tank of finger installation piece 4 sliding fit to inject the moving direction of finger installation piece 4 is showing and is improving the structure steadiness and the operational reliability of pneumatic three-jaw.

The working principle of the pneumatic three-jaw is as follows: when the switching is pointed to needs, ventilate through the gas pocket to on the cylinder body 1, piston 11 can realize the action and two movements of resetting (move left and right promptly), drive transmission shaft 7 and use hinge 8 to do circular motion as the center in the time of piston 11 motion, because transmission shaft 7, backup pad 5 and bush 9 are fixed connection in proper order, consequently 5 and then rotate together in the backup pad when transmission shaft 7 pivoted, spout on the backup pad 5 drives finger drive pin 6 and moves together, because finger drive pin 6 and finger installation piece 4 fixed connection, consequently finger drive pin 6 drives finger installation piece 4 and realizes the switching action of finger.

The mechanisms, assemblies and components of the present invention that are not described with respect to specific structures are conventional structures that exist in the prior art. Can be purchased directly from the market.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The pneumatic three-jaw transmission type air cylinder driving hinge comprises an air cylinder body (1) and is characterized in that the air cylinder body (1) is fixedly connected with a hinge (8); the upper part of the hinge (8) is connected with a bushing (9) which can rotate around the hinge (8); the bushing (9) is fixedly connected with a support plate (5); the supporting plate (5) is provided with three sliding chutes distributed in an annular array; the support plate (5), the hinge (8) and the bushing (9) are coaxial; the bottom of the supporting plate (5) is fixedly connected with a transmission shaft (7); a piston (11) of the cylinder body (1) is provided with a U-shaped groove for accommodating the transmission shaft (7); the axis of the piston (11) is perpendicular to the axis of the hinge (8); the top of the cylinder body (1) is connected with three finger mounting blocks (4) which are distributed in an annular array and used for mounting fingers in a sliding manner; the bottom of the finger mounting block (4) is fixedly connected with a finger transmission pin (6); the finger driving pin (6) is inserted into the sliding groove on the supporting plate (5).

2. The pneumatic three-jaw according to claim 1, characterized in that the piston (11) is provided with a relief groove; the hinge (8) passes through the evacuation slot.

3. Pneumatic three-jaw according to claim 1, characterized in that it further comprises a shaft snap ring (10) for preventing the support plate (5) from falling off.

4. Pneumatic three-jaw according to claim 1, characterized in that two end covers (12) are fixedly connected to the cylinder body (1).

5. Pneumatic three-jaw according to claim 4, characterized in that an O-ring (14) for improving the sealing is arranged between the end cover (12) and the cylinder body (1).

6. The pneumatic three-jaw according to claim 4 or 5, characterized in that a limit snap ring (13) for preventing the end cover (12) from being pressed out by air pressure is mounted on the cylinder body (1).

7. Pneumatic three-jaw according to claim 1, characterised in that a PSD sealing ring (15) for improved sealing is mounted on the piston (11).

8. The pneumatic three-jaw according to claim 1, characterized in that the finger mounting block (4) is an interference fit with a finger drive pin (6); the supporting plate (5) is in interference fit with the transmission shaft (7).

9. The pneumatic three-jaw according to claim 1, characterized in that an upper cover (2) is fixedly connected to the top of the cylinder body (1); the upper cover (2) is annular, and the inner side of the upper cover is fixedly connected with a cover plate (3).

10. The pneumatic three-jaw according to claim 9, characterized in that said finger mounting block (4) is of raised type; the cylinder body (1) and the upper cover (2) are provided with accommodating grooves which are in sliding fit with the finger mounting blocks (4).