CN209868032U

CN209868032U - Multi-station clamp based on air bag driving

Info

Publication number: CN209868032U
Application number: CN201920120527.6U
Authority: CN
Inventors: 李德财
Original assignee: Jinbo Technology Co ltd
Current assignee: Jinbo Technology Co ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2019-12-31
Anticipated expiration: 2029-01-24

Abstract

The utility model discloses a multistation anchor clamps based on gasbag drive, including frock main part (1), ejector pad (2) and gasbag (3). Be equipped with on frock main part (1) and hold chamber (11), ejector pad (2) are equipped with two movable part (22), are equipped with a plurality of first work piece grooves (21) on the lateral surface of movable part (22), hold the position department that corresponds with first work piece groove (21) on the medial surface of chamber (11) and be equipped with second work piece groove (12), gasbag (3) are located between two movable part (22). When external air is filled into the air bag (3), the air bag (3) deforms and extrudes the two movable parts (22), the workpiece (10) is limited and fixed in a hole formed by the combination of the first workpiece groove (21) and the second workpiece groove (12) by the two movable parts (22) under the action of pressure, the outer surface of the whole workpiece (10) is tightly combined with the first workpiece groove (21) and the second workpiece groove (12), and the workpiece (10) is uniform in stress and not easy to damage.

Description

Multi-station clamp based on air bag driving

Technical Field

The utility model relates to a machining technical field especially relates to a multistation anchor clamps based on airbag actuation.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving processing or inspection in a machine manufacturing process. In the prior art, a three-jaw chuck on a conventional lathe is often adopted to clamp a workpiece. Three-jaw chucks generally comprise a chuck body and three jaws arranged on the chuck body, and a workpiece is clamped and positioned by radial movement of three movable jaws uniformly distributed on the chuck body.

However, under certain special processing requirements, such as processing the inner surface of a sleeve member made of fragile or flexible metal or nonmetal material, when the sleeve member is fixed by using a three-jaw chuck, the outer surface of the sleeve member is subjected to a large pressure applied by the jaws, and not only the outer surface of the sleeve member is damaged, but also the inner surface of the sleeve member is affected, thereby affecting the processing accuracy of the inner surface of the sleeve member. In addition, in the prior art, one three-jaw chuck can only fix one sleeve piece, and the sleeve piece is low in machining efficiency and cannot meet the production requirement.

Disclosure of Invention

Based on the defects, the utility model provides an air bag drive-based multi-station clamp which can quickly clamp and position a workpiece and does not damage the outer surface and the inner surface of the workpiece, and comprises a tool main body, a push block and an air bag, wherein the tool main body is provided with a containing cavity, and the air bag and the push block are both positioned in the containing cavity; the push block is provided with two movable parts, a plurality of first workpiece grooves are formed in the outer side faces of the two movable parts, second workpiece grooves are formed in the positions, corresponding to the first workpiece grooves, of the inner side faces of the containing cavities, and when a workpiece is clamped, the workpiece is located in a hole formed by combining the first workpiece grooves and the second workpiece grooves; the air bag is located between the two movable parts, and when external air is filled into the air bag, the air bag deforms to extrude the two movable parts to move towards the inner side face of the accommodating cavity.

Furthermore, the upper ends of the two movable parts are connected, and the lower ends of the two movable parts are open.

Furthermore, the lower ends of the two movable parts are connected, and the upper ends of the two movable parts are open.

Further, the upper ends and the lower ends of the two movable parts are both opened.

Furthermore, one end of the air bag is provided with a sealing element, and the other end of the air bag is provided with a gas joint.

Further, the ejector pad is made of elastic materials, and the tool main body is made of non-elastic materials.

Further, still include the bottom plate, the bottom plate forms accommodation space with frock main part fixed connection, and when the centre gripping work piece, the work piece is located this accommodation space.

Further, still including the support piece that can reciprocate, support piece is located between frock main part and bottom plate, just ejector pad and work piece all are located support piece.

Furthermore, the supporting piece is provided with a cross beam and a vertical beam, and the push block and the workpiece are positioned on the cross beam; the both ends of frock main part are equipped with the jack, erect the roof beam and pass the jack and expose the surface of frock main part.

Further, the support piece includes a plurality of, and the vertical beam of a plurality of support pieces passes through connecting rod fixed connection.

Compared with the prior art, the utility model discloses based on gasbag driven multistation anchor clamps, when the outside gas fills in the gasbag, the gasbag takes place two movable parts of deformation extrusion, two movable parts move to the medial surface that holds the chamber under the pressure action, with the work piece spacing fix in the hole that is formed by first work piece groove and second work piece groove combination, the surface and the first work piece groove and the second work piece groove of work piece combine closely, whole work piece surface atress is even, its surface and internal surface all are difficult for receiving the damage. Simultaneously, be equipped with a plurality of first work piece grooves on every movable part, through the transport of control gas with stop, once only can fix and loosen a plurality of work pieces fast, simple structure, convenient operation can realize full automation, has improved machining efficiency.

Drawings

Fig. 1 is an overall assembly diagram of the multi-station fixture based on air bag driving of the utility model;

fig. 2 is an explosion diagram of the multi-station clamp based on air bag driving of the present invention;

fig. 3 is another schematic diagram of the airbag-driven multi-station fixture according to the present invention;

fig. 4 is a schematic structural view of the multi-station clamp push block based on air bag driving of the present invention;

fig. 5 is a schematic structural view of the multi-station fixture tool main body based on air bag driving of the present invention;

fig. 6 is the utility model discloses a multistation anchor clamps support piece's based on gasbag driven structure schematic diagram.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, and the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the present invention.

As shown in fig. 1 to 3, the utility model discloses a multistation anchor clamps based on gasbag drive includes: the tool comprises a tool main body 1, a bottom plate 6, a push block 2 and an air bag 3. The tool main body 1 and the bottom plate 6 are fixedly connected to form an accommodating space, and the push block 2 and the workpiece 10 are both located in the accommodating space. The tool body 1 may be provided with a plurality of accommodating cavities 11 (for example, three long accommodating cavities 11 are provided in fig. 1 to 3), and each accommodating cavity 11 may accommodate a plurality of pushing blocks 2 (for example, three pushing blocks 2 are provided in each accommodating cavity 11 in fig. 1 to 3). The push block 2 may have two symmetrical movable portions 22, a plurality of half-groove bodies-first workpiece grooves 21 (for example, two first workpiece grooves 21 are provided in each movable portion 22 in fig. 1 to 3) corresponding to the size and shape of the workpiece 10 are provided on the outer side of each movable portion 22, a half-groove body-second workpiece groove 12 corresponding to the size and shape of the workpiece 10 is correspondingly provided on the inner side of the accommodating cavity 11, the first workpiece groove 21 and the second workpiece groove 12 cooperate to form a hole capable of limiting the workpiece 10, and when the workpiece 10 is clamped, the outer surface of the workpiece 10 is tightly combined with the first workpiece groove 21 and the second workpiece groove 12.

The utility model discloses the preferred elastic material of well movable part 22, the preferred inelastic material of frock main part 1, gasbag 3 are located the centre of two movable parts 22. When the external air is filled into the air bag 3, the air bag 3 elastically deforms to extrude the two movable parts 22, the two movable parts 22 elastically deform under the action of pressure, and the workpiece 10 can be more firmly limited in a hole formed by the combination of the first workpiece groove 21 and the second workpiece groove 12 due to the fact that the tool main body 1 is made of the inelastic material. At this time, the outer surface of the workpiece 10 is tightly combined with the first workpiece groove 21 and the second workpiece groove 12, so that the whole workpiece 10 is uniformly stressed, and the outer surface and the inner surface are not easily damaged, thereby being particularly suitable for the precise processing of the inner surface of a sleeve piece made of fragile, flexible and other metal or nonmetal materials.

As shown in fig. 4, a plurality of first workpiece grooves 21 may be provided on the outer side of each movable portion 22, the shape of the first workpiece grooves 21 is not limited to the semi-cylindrical shape in the drawing, and may be adapted according to the specific shape of the workpiece 10, for example, the workpiece 10 is a rectangular parallelepiped sleeve, and the first workpiece grooves 21 may be provided as rectangular parallelepiped grooves accordingly. When the workpiece 10 is in a plate shape, the first workpiece groove 21 may be a square structure with a zero thickness, that is, the first workpiece groove 21 is not provided, and the workpiece 10 is directly clamped between the movable portion 22 and the inner side surface of the tool main body 1.

When the airbag 3 is shaped as a long tube, a semicircular groove 23 along the length direction of the movable portion 22 may be formed on the inner side of the movable portion 22, a radial cylindrical groove 23 is formed between the two movable portions 22, and the airbag 3 may be closely attached to the cylindrical groove 23, so that the elastic force of the airbag 3 is more uniformly transmitted to the movable portion 22. Of course, the shape of the semicircular groove 23 may also be changed according to the shape change of the airbag 3, and is not limited to the shape in the drawings.

Can set up sealing member 4 in the one end of circular recess 23, the other end sets up gas joint 5, and is corresponding, and the both ends that hold the chamber 11 of frock main part 1 are equipped with two through-holes 13, a through-hole 13 and sealing member 4 fixed connection, another through-hole 13 and gas joint 5 fixed connection, and during external gas filled gasbag 3 from gas joint 5, whole gasbag 3's gas tightness is better, can the energy saving reduction in production cost. When the external air is filled into the air bag 3, the two movable parts 22 can deform outwards, and under the limiting action of the accommodating cavity 11 of the tool main body 1, the workpieces 10 can be limited and fixed. The utility model discloses a based on air bag driven multistation anchor clamps, through the transport of control gas with stop, once can fix and loosen a plurality of work pieces 10 fast, simple structure, convenient operation can realize automatic operation, has improved machining efficiency.

On the basis of the above embodiment, the two movable portions 22 of the push block 2 may be two independent movable portions 22, and the upper ends and the lower ends of the two movable portions are not connected; or two independent movable parts 22 with upper ends connected and lower ends opened; or two independent movable parts 22 with openings at the upper ends and connected at the lower ends. The connection mode that can realize two movable parts 22 can outwards take place deformation under the effect of gas pressure all can satisfy the utility model discloses a requirement.

The utility model discloses working procedure based on air bag driven multistation anchor clamps includes:

the first step is as follows: placing each workpiece 10 into the second workpiece slot 12 by a robot or a human;

the second step is that: filling gas into the gas bag 3, wherein the gas bag 3 deforms to extrude each movable part 22 to move towards the inner side surface of the accommodating cavity 11, and the workpiece 10 is limited and fixed in a hole formed by matching the first workpiece groove 21 and the second workpiece groove 12;

the third step: processing or inspecting the workpiece 10;

the fourth step: after the workpiece 10 is machined, the gas delivery is cut off, and the movable part 22 is reset;

the fifth step: the workpiece 10 is taken out by a robot or manually and conveyed to the next process.

And a sixth step: and circulating the steps.

In order to better limit the workpiece 10, as shown in fig. 5, the depth of the second workpiece groove 12 on the accommodating cavity 11 of the tool main body 1 is generally greater than the depth of the first workpiece groove 21 on the push block 2, and at this time, the bottom plate 6, the tool main body 1 and the push block 2 can form a more stable accommodating space, and even after the push block 2 is deformed and reset, the bottom plate 6 and the tool main body 1 can still limit the workpiece 10 in the second workpiece groove 12.

When the inner surface of the sleeve-shaped workpiece 10 is machined, in order to avoid the influence of the outer surface on the inner surface of the workpiece 10 during machining, the workpiece 10 sinks almost entirely in the aperture formed by the combination of the first workpiece groove 21 and the second workpiece groove 12, and after the machining is completed, the workpiece 10 needs to be taken out. In this embodiment, a supporting member 7 capable of moving up and down is arranged between the bottom plate 6 and the tool body 1, the push block 2 and the workpiece 10 are located on the supporting member 7, and when the supporting member 7 moves up, the workpiece 10 moves up together, so that the workpiece 10 can be conveniently taken out by a manipulator or manually.

As shown in fig. 5 and 6, the support 7 can be a female support 7 provided with a cross beam 71 and, for example, two vertical beams 72, the workpiece 10 being located on the cross beam 71 of the support 7. The back of the tool body 1 can be provided with a limiting groove 14, and the cross beam 71 of the support member 7 can be clamped in the limiting groove 14. Jacks are arranged at two ends of the front surface of the tool main body 1, and the two vertical beams 72 of the support piece 7 penetrate through the jacks to expose the surface of the tool main body 1. When the two vertical beams 72 of the supporting piece 7 are lifted upwards, the workpiece 10 moves upwards along with the supporting piece 7, and the outer surface of the tool body 1 can be exposed, so that the workpiece 10 can be conveniently taken out by a manipulator or a manual worker. When there are a plurality of the supporting members 7, the vertical beams 72 of the supporting members 7 at the same end can be fixedly connected by a connecting rod 8. After the processing is finished, the supporting pieces 7 and the workpieces 10 on the supporting pieces 7 can be lifted upwards at one time only by lifting the two connecting rods 8 at the two ends upwards, and the operation is simple and the use is convenient. Of course, the technical solution of lifting the supporting member 7 upward is not limited to the above embodiment, and the purpose can be achieved by moving the supporting member 7 up and down by using a pneumatic device or the like.

The utility model has the advantages that:

1. under the action of the air bag 3, the outer surface of the workpiece 10 is tightly combined with the first workpiece groove 21 and the second workpiece groove 12, the stress is uniform, and the workpiece is not easy to be damaged;

2. the workpiece 10 can be quickly fixed and loosened by controlling the conveying and stopping of the gas, the structure is simple, the operation is convenient, the full automation can be realized, and the processing efficiency is improved;

3. the movable part 22 is preferably made of elastic material, the tool main body 1 is preferably made of inelastic material, and the workpiece 10 can be more firmly limited in a pore formed by the combination of the first workpiece groove 21 and the second workpiece groove 12;

4. by means of the up-and-down movement of the supporting piece 7, the workpiece 10 can be exposed out of the outer surface of the tool main body 1, and the workpiece 10 can be taken out conveniently.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. 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. The multi-station clamp based on air bag driving is characterized by comprising a tool main body (1), a push block (2) and an air bag (3), wherein an accommodating cavity (11) is formed in the tool main body (1), and the air bag (3) and the push block (2) are both positioned in the accommodating cavity (11); the push block (2) is provided with two movable parts (22), one or more first workpiece grooves (21) are formed in the outer side faces of the two movable parts (22), second workpiece grooves (12) are formed in positions, corresponding to the first workpiece grooves (21), on the inner side faces of the accommodating cavities (11), and when the workpiece (10) is clamped, the workpiece (10) is located in a hole formed by combining the first workpiece grooves (21) and the second workpiece grooves (12); the air bag (3) is located between the two movable portions (22), and when external air is filled into the air bag (3), the air bag (3) deforms to extrude the two movable portions (22) to move towards the inner side face of the accommodating cavity (11).

2. The multi-station clamp based on air bag driving according to claim 1, wherein the two movable portions (22) are connected at upper ends and open at lower ends; or the lower ends of the two movable parts (22) are connected and the upper ends are opened.

3. The airbag-driven multistation clamp according to claim 1, characterized in that the upper and lower ends of the two movable parts (22) are open.

4. The multi-station clamp based on air bag driving according to claim 1, wherein one end of the air bag (3) is provided with a sealing member (4), and the other end is provided with a gas joint (5).

5. The airbag-driven multi-station clamp as claimed in claim 1, wherein the push block (2) is made of an elastic material, and the tool body (1) is made of an inelastic material.

6. The airbag-driven multistation clamp according to claim 1, characterized in that the cross section of the first workpiece groove (21) and the second workpiece groove (12) is rectangular or has the shape of a cambered edge.

7. The airbag-driven multistation clamp according to claim 6, characterized in that the cross section of the first workpiece groove (21) and the second workpiece groove (12) is semicircular.

8. A multi-station clamp based on air bag driving according to any one of claims 1 to 5, characterized by further comprising a bottom plate (6), wherein the bottom plate (6) is fixedly connected with the tool main body (1) to form a containing space, and when the workpiece (10) is clamped, the workpiece (10) is positioned in the containing space.

9. The air bag drive-based multi-station clamp according to claim 8, further comprising a support member (7) capable of moving up and down, wherein the support member (7) is located between the tool body (1) and the bottom plate (6), and the push block (2) and the workpiece (10) are both located on the support member (7).

10. The airbag-driven multi-station clamp as claimed in claim 9, wherein the support (7) is provided with a cross beam (71) and a vertical beam (72), and the push block (2) and the workpiece (10) are positioned on the cross beam (71); the two ends of the tool main body (1) are provided with jacks, and the vertical beam (72) penetrates through the jacks to expose the outer surface of the tool main body (1).

11. The airbag-driven multi-station clamp according to claim 10, wherein the support member (7) comprises a plurality of support members, and the vertical beams (72) of the plurality of support members (7) are fixedly connected through the connecting rod (8).