CN212824879U

CN212824879U - Pneumatic tool clamp

Info

Publication number: CN212824879U
Application number: CN202021063585.9U
Authority: CN
Inventors: 陈宗元; 帅金良; 罗文库; 范小成
Original assignee: World Precision Manufacturing Dongguan Co Ltd
Current assignee: World Precision Manufacturing Dongguan Co Ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-03-30
Anticipated expiration: 2030-06-09

Abstract

The utility model provides a pneumatic tool clamp, including base and clamping portion, clamping portion includes the shaft lid, axle center spare, the axle sleeve, elastic component and ball, the shaft lid is installed on the base, the shaft lid encloses with the base and is equipped with installation space, the base is equipped with the gas pocket, the shaft lid is equipped with the through-hole that communicates with installation space, axle center spare sets up in installation space and is connected on the base, axle center spare is equipped with the jack, the jack communicates in the below of through-hole, jack and through-hole form the location space that is used for fixing a position the work piece, the axle sleeve can set up between axle center spare and base with sliding from top to bottom, the axle sleeve is located the below of the gas outlet end of gas pocket, elastic component sets up between axle sleeve and one of base and axle center spare, elastic component is used for making the axle sleeve reset, the ball movably sets up between axle; the ball is propped against the shaft sleeve so that the ball moves to the positioning space and clamps the workpiece, or the external gas enters the air hole so as to push the shaft sleeve to slide downwards, so that the ball is released.

Description

Pneumatic tool clamp

Technical Field

The utility model relates to an anchor clamps field especially relates to a pneumatic frock clamp.

Background

Vises are common fixtures used to hold workpieces. The vice is arranged on the workbench and used for clamping and stably processing the workpiece, and is a necessary tool for a bench worker workshop. The existing vice has the following defects: 1. the traditional processing adopts vice processing, the vice is large and heavy, and is inconvenient to use and operate; 2. the vice cannot be used universally, and only a single workpiece with a right and a square type surface can be processed; 3. when the vice is used for clamping a workpiece, the vice needs to be adjusted, and the adjustment time is long, so that the production efficiency is influenced; 4. when the vice is used for tooling, external clamping cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can save adjustment time, improve production efficiency and realize the pneumatic frock clamp of outer clamping.

In order to achieve the above object, the present invention provides a pneumatic tool clamp, comprising a base and a clamping portion, wherein the clamping portion comprises a shaft cover, a shaft core member, a shaft sleeve, an elastic member and balls, the shaft cover is mounted on the base, the shaft cover and the base enclose an installation space, the base is provided with air holes for air to enter the installation space, the shaft cover is provided with through holes communicated with the installation space, the shaft core member is arranged in the installation space and connected to the base, the shaft core member is provided with insertion holes communicated with the lower part of the through holes, the insertion holes and the through holes form a positioning space for positioning a workpiece, the shaft sleeve is slidably arranged between the shaft core member and the base up and down, the shaft sleeve is arranged below the air outlet end of the air holes, the elastic member is arranged between the base and one of the shaft core member and the shaft sleeve, the elastic piece is used for resetting the shaft sleeve, and the ball is movably arranged between the shaft core piece and the shaft cover; the shaft sleeve is abutted against the ball, so that the ball moves to the positioning space and clamps the workpiece in the positioning space, or external air enters the air hole to push the shaft sleeve to slide downwards, and the ball is released.

Preferably, the base is provided with a groove, and the shaft cover covers the groove to form the mounting space.

Preferably, the shaft cover includes a cover portion and an insertion portion protruding from the cover portion, the cover portion is supported on the base, and the insertion portion is inserted between the shaft sleeve and the base.

Preferably, the shaft sleeve is provided with an inclined surface for pushing or releasing the ball.

Preferably, the shaft sleeve is sleeved outside the shaft core piece.

Preferably, a plurality of the balls are disposed between the hub member and the shaft cover in a circumferential direction of the hub member.

Preferably, the axle center part is provided with a connecting hole for the elastic part to be inserted, one end of the elastic part is inserted into the connecting hole, and the other end of the elastic part is inserted into the axle sleeve.

Preferably, the pneumatic tool clamp further comprises a bearing piece for bearing a workpiece, the bearing piece is inserted into the positioning space, and a positioning groove for the ball to extend into and clamp is formed in the side wall of the bearing piece.

Preferably, the pneumatic tool clamp further comprises a gas pipe connector, and the gas pipe connector is connected to the gas inlet end of the gas hole.

Preferably, the number of the clamping parts is at least two, and the two clamping parts are arranged on the base at intervals.

Compared with the prior art, the pneumatic tool clamp of the utility model supports against the balls through the shaft sleeve, so that the balls move to the positioning space and clamp the workpiece in the positioning space; the external air enters the air hole, pushes the shaft sleeve to slide downwards, so that the balls are released, the balls are loosened and are not clamped any more, and the workpiece in the jack can be taken out; the utility model discloses a pneumatic frock clamp can regard as frame quick change main part, realizes the outer clamping of machine, replaces current manual vice clamping, saves adjustment time, shortens the regulation and prepares the cycle, reduces the operation degree of difficulty to can improve production efficiency, and the preparation is convenient, low in production cost.

Drawings

Fig. 1 is a schematic perspective view of the pneumatic tool clamp of the present invention.

Fig. 2 is a top view of the pneumatic tool holder of the present invention.

Fig. 3 is a sectional view taken along a section line a-a of fig. 2.

Fig. 4 is a sectional view taken along a section line B-B of fig. 2.

Fig. 5 is an exploded view of the pneumatic tool holder of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, a pneumatic tooling fixture 100 of the present invention includes a base 1 and a clamping portion, wherein the clamping portion includes a shaft cover 2, a shaft core 3, a shaft sleeve 4, an elastic member 5 and a ball 6. The shaft cover 2 is arranged on the base 1, an installation space is defined by the shaft cover 2 and the base 1, specifically, the base 1 is provided with a groove 12, and the shaft cover 2 covers the groove 12 to form the installation space; the base 1 is provided with an air hole 11 for air to enter the installation space, and the air inlet end of the air hole 11 is formed at the outer side of the base 1; the shaft cover 2 is provided with a through hole 21 communicated with the installation space, the shaft center piece 3 is arranged in the installation space and connected onto the base 1, the shaft center piece 3 is provided with an insertion hole 31, the insertion hole 31 is communicated below the through hole 21, the insertion hole 31 and the through hole 21 form a positioning space for positioning the workpiece 200, the shaft sleeve 4 is arranged between the shaft center piece 3 and the base 1 in a manner of sliding up and down, the shaft sleeve 4 is positioned below the air outlet end of the air hole 11, the elastic piece 5 is arranged between the shaft sleeve 4 and one of the base 1 and the shaft center piece 3, the elastic piece 5 is used for resetting the shaft sleeve 4, and the ball 6 is movably arranged between the shaft center piece 3 and the shaft cover 2; the ball 6 is pushed by the sleeve 4 to move to the positioning space and clamp the workpiece 200 in the positioning space, or the external air enters the air hole 11 to push the sleeve 4 to slide downwards, so as to release the ball 6.

Referring to fig. 3 and 4, in the present embodiment, the shaft cover 2 includes a cover portion 22 and an insertion portion 23 protruding from the cover portion 22, the cover portion 22 is supported on the base 1, and the insertion portion 23 is inserted between the shaft sleeve 4 and the base 1. Specifically, the lower part of the shaft sleeve 4 is connected to the inner wall of the groove 12 of the base 1 in a contact manner, an interval is formed between the upper part of the shaft sleeve 4 and the inner wall of the groove 12 of the base 1, the insertion part 23 of the shaft cover 2 is inserted into the interval, a gap is formed between the lower end of the insertion part 23 and the lower part of the shaft sleeve 4, and the air outlet end of the air hole 11 of the base 1 is located between the lower end of the insertion part 23 and the lower part of the shaft sleeve 4, so that external air entering the air hole 11 can enter the gap and drive the shaft sleeve 4 to. More specifically, the boss 4 is fitted to the outside of the hub 3. Further, the sleeve 4 is provided with a ramp 41 for pushing or releasing the balls 6. The shaft sleeve 4 is driven to slide downwards, so that the shaft sleeve 4 releases the balls 6 through the inclined surface 41, and the balls 6 are loosened; by driving the sleeve 4 to slide upwards, the sleeve 4 pushes the balls 6 through the inclined surface 41, so that the balls 6 move to the positioning space and clamp the workpiece 200 in the positioning space.

Referring to fig. 4 and 5, a plurality of balls 6 are disposed between the shaft member 3 and the shaft cover 2 along the circumferential direction of the shaft member 3. Through setting up a plurality of balls 6 for axle sleeve 4 accessible drive a plurality of balls 6 presss from both sides tight work piece 200, improves the steadiness of pressing from both sides tight work piece 200. Furthermore, the shaft center member 3 is provided with a limiting portion 33 for limiting the ball 6, so that the phenomenon that the whole ball 6 moves to a positioning space and falls off is avoided. In this embodiment, the shaft member 3 is provided with a connection hole 32 for the elastic member 5 to be inserted, one end of the elastic member 5 is inserted into the connection hole 32, and the other end of the elastic member 5 is inserted into the shaft sleeve 4. For example, one end of the elastic element 5 may be inserted into the base 1, and the other end of the elastic element 5 may be inserted into the shaft sleeve 4. Specifically, several elastic members 5 are arranged in the circumferential direction of the axial member.

Referring to fig. 1 and fig. 3, the pneumatic tooling fixture 100 further includes a carrier 7 for carrying the workpiece 200, the carrier 7 is inserted into the positioning space, that is, the carrier 7 is inserted into the through hole 21 of the shaft cover 2 and the insertion hole 31 of the shaft core 3, and the side wall of the carrier 7 is provided with a positioning groove 71 for the ball 6 to extend into and clamp. The carrier 7 is provided with a mounting hole for mounting the workpiece 200, in which the workpiece 200 is positioned by insertion. The positioning work 200 is clamped by driving the ball 6 to move to the position of the positioning space and clamping the positioning slot 71 of the carrier 7.

Referring to fig. 5, the pneumatic tooling fixture 100 further includes a gas pipe connector 8, and the gas pipe connector 8 is connected to the gas inlet end of the gas hole 11. The air pipe joint 8 is used for being connected with an external air pump, so that the external air pump supplies air to the air holes 11 of the base 1.

Referring to fig. 5, the number of the clamping portions is at least two, and the two clamping portions are disposed on the base 1 at an interval. In the present embodiment, the number of the clamping portions is two, but not limited thereto. Through setting up a plurality of clamping parts to can the clamping simultaneously and fix a position a plurality of work pieces 200, so that follow-up pushing away two work pieces 200 simultaneously and processing, improve machining efficiency.

With reference to fig. 1 to 5, the pneumatic tool clamp 100 of the present invention has the following specific working principle:

initially, the sleeve 4 abuts the balls 6, so that the balls 6 move into the positioning space and grip the carrier 7 loaded with the work piece 200. When the workpiece 200 needs to be taken out, the external air pump can supply air to the air hole 11, so that the external air enters the air hole 11 to push the shaft sleeve 4 to slide downwards and compress the elastic piece 5, the shaft sleeve 4 does not abut against the ball 6, the ball 6 is loosened and does not clamp the workpiece 200, and the workpiece 200 can be taken out. After the external air pump is disconnected to supply air to the air hole 11, the shaft sleeve 4 slides upwards under the elastic restoring force of the elastic piece 5 and re-abuts against the ball 6, so that the ball 6 moves to the positioning space and clamps the bearing piece 7 loaded with the workpiece 200.

To sum up, the pneumatic tool clamp 100 of the present invention supports the ball 6 through the shaft sleeve 4, so that the ball 6 moves to the positioning space and clamps the workpiece 200 located in the positioning space; the external air enters the air hole 11, pushes the shaft sleeve 4 to slide downwards, so that the ball 6 is released, the ball 6 is loosened and is not clamped any more, and the workpiece 200 positioned in the jack 31 can be taken out; the utility model discloses a pneumatic frock clamp 100 can regard as frame quick change main part, realizes the outer clamping of machine, replaces current manual vice clamping, saves adjustment time, shortens the regulation and prepares the cycle, reduces the operation degree of difficulty to can improve production efficiency, and the preparation is convenient, low in production cost.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A pneumatic tool clamp is characterized by comprising a base and a clamping part, wherein the clamping part comprises a shaft cover, a shaft core piece, a shaft sleeve, an elastic piece and balls, the shaft cover is arranged on the base, an installation space is defined by the shaft cover and the base, the base is provided with air holes for air to enter the installation space, the shaft cover is provided with through holes communicated with the installation space, the shaft core piece is arranged in the installation space and connected onto the base, the shaft core piece is provided with insertion holes communicated with the lower part of the through holes, the insertion holes and the through holes form a positioning space for positioning a workpiece, the shaft sleeve is arranged between the shaft core piece and the base in an up-and-down sliding manner, the shaft sleeve is positioned below the air outlet end of the air holes, the elastic piece is arranged between the shaft sleeve and one of the base and the shaft core piece, the elastic piece is used for resetting the shaft sleeve, and the ball is movably arranged between the shaft core piece and the shaft cover; the shaft sleeve is abutted against the ball, so that the ball moves to the positioning space and clamps the workpiece in the positioning space, or external air enters the air hole to push the shaft sleeve to slide downwards, and the ball is released.

2. The pneumatic tool clamp of claim 1, wherein the base is provided with a groove, and the shaft cover covers the groove to form the mounting space.

3. The pneumatic tool clamp of claim 2, wherein the shaft cover comprises a cover body portion and an insertion portion protruding from the cover body portion, the cover body portion is supported on the base, and the insertion portion is inserted between the shaft sleeve and the base.

4. The pneumatic tooling clamp of claim 1, wherein the bushing is provided with a ramp for pushing or releasing the balls.

5. The pneumatic tooling clamp of claim 1, wherein the bushing is sleeved outside the hub member.

6. The pneumatic tooling fixture of claim 1 wherein a plurality of balls are disposed between the mandrel member and the shaft cover in a circumferential direction of the mandrel member.

7. The pneumatic tool clamp of claim 1, wherein the hub has a connection hole for inserting an elastic member, one end of the elastic member is inserted into the connection hole, and the other end of the elastic member is inserted into the shaft sleeve.

8. The pneumatic tool clamp of claim 1, further comprising a bearing member for bearing a workpiece, wherein the bearing member is inserted into the positioning space, and a positioning groove for the ball to extend into and clamp is formed in a side wall of the bearing member.

9. The pneumatic tooling fixture of claim 1 further comprising an air pipe fitting connected to an air inlet end of the air hole.

10. The pneumatic tooling clamp of claim 1, wherein the number of the clamping portions is at least two, and the two clamping portions are arranged on the base at intervals.