CN215035388U - Single-head pneumatic zero point tool clamp - Google Patents

Abstract

The utility model provides a single-end pneumatic zero point frock clamp, which comprises an outer shell, the shaft cover, the axle center spare, the axle sleeve, elastic component and ball, the inside of shell has the holding chamber, be equipped with the gas pocket on the lateral wall of shell, the upper portion of shell is equipped with the through-hole, the shaft cover is installed in the bottom of shell, the axle center spare sets up in the holding chamber and installs on the shaft cover, the axle center spare is equipped with the jack, the through-hole forms location space with the jack, form spacing mouth between the upper end of axle center spare and the shell, the axle sleeve can be slided from top to bottom and is located on the axle center spare, the axle sleeve includes axle sleeve upper portion and axle sleeve lower part, the inside of shell is equipped with the recess that sets up around axle sleeve upper portion, the recess communicates with the gas outlet end of gas pocket, the opening of recess is down and is located the top of axle sleeve lower part, the elastic component sets up between axle sleeve and axle center spare, the ball sets up in spacing mouth; the ball is pushed by the shaft sleeve to protrude to the positioning space, or the external air enters the air hole to push the shaft sleeve to slide downwards and release the ball.

Description

Single-head pneumatic zero point tool clamp

Technical Field

The utility model relates to an anchor clamps field especially relates to a pneumatic zero point frock clamp of single-end.

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, each single workpiece needs to be adjusted, the adjusting time is long, and the production efficiency is influenced; 4. when the vice is used for tooling, external clamping cannot be realized. Because the vice exists not enough, appear some pneumatic frock clamps on the market gradually, and these frock clamps then have the gas tightness poor, take place gas leakage phenomenon easily, influence frock clamp's clamping efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic zero point frock clamp of single-end that the gas tightness is good, clamping is efficient.

In order to achieve the above object, the utility model provides a single-end pneumatic zero point tooling fixture, which comprises a shell, a shaft cover, a shaft core piece, a shaft sleeve, an elastic piece and balls, wherein the shell is internally provided with a holding cavity, the side wall of the shell is provided with an air hole communicated with the holding cavity, the upper part of the shell is provided with a through hole communicated with the upper end of the holding cavity, the shaft cover is arranged at the bottom of the shell and seals the lower end of the holding cavity, the shaft core piece is arranged in the holding cavity and is arranged on the shaft cover, the shaft core piece is provided with a jack, the jack is communicated with the lower part of the through hole, the through hole and the jack form a positioning space for positioning a workpiece, a limiting port communicated with the positioning space is formed between the upper end of the shaft core piece and the shell, and the shaft sleeve can be sleeved on the shaft core piece in a vertically sliding manner, the shaft sleeve comprises a shaft sleeve upper part and a shaft sleeve lower part connected below the shaft sleeve upper part, the outer diameter of the shaft sleeve lower part is larger than the outer diameter of the shaft sleeve upper part, the shaft sleeve upper part and the shaft sleeve lower part are respectively clung to the inner side wall of the accommodating cavity, a groove arranged around the shaft sleeve upper part is arranged in the shell, the groove is communicated with the air outlet end of the air hole, the opening of the groove faces downwards and is positioned above the shaft sleeve lower part, the elastic piece is arranged between the shaft sleeve and the shaft core piece along the up-down direction, and the ball is movably arranged at the limit port; the shaft sleeve is abutted against the ball, so that the ball protrudes 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 release the ball.

Preferably, axle sleeve upper portion with the axle sleeve lower part is coaxial to be set up, the protruding inside wall that is equipped with of shell is used for right the upglide of axle sleeve carries out spacing portion, spacing position in the top of axle sleeve lower part, the recess is seted up in the bottom of spacing portion, the outside on axle sleeve upper portion hug closely in on the lateral wall of spacing portion.

Preferably, a first sealing ring is arranged between the upper part of the shaft sleeve and the side wall of the limiting part.

Preferably, a second sealing ring is arranged between the lower part of the shaft sleeve and the inner side wall of the shell.

Preferably, a third sealing ring is arranged between the shaft core piece and the shaft sleeve.

Preferably, a fourth sealing ring is arranged between the shaft core piece and the inner side wall of the shell.

Preferably, the plurality of balls are respectively arranged in the limiting openings along the axis direction of the axis member.

Preferably, a plurality of elastic members are provided between the boss and the hub member in a circumferential direction of the hub member.

Preferably, the single-head pneumatic zero point tooling fixture further comprises a bearing piece for bearing a workpiece, the bearing piece can be 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.

Compared with the prior art, the utility model discloses a single-end pneumatic zero frock clamp centers on through the inside setting at the shell axle sleeve upper portion sets up and is located the recess of the top of axle sleeve lower part, will the recess with the end intercommunication of giving vent to anger of gas pocket for gas pocket and recess form an organic whole structure, guarantee the gas tightness effect, and will axle sleeve upper portion with the axle sleeve lower part hug closely respectively in on the inside wall in holding chamber, make the axle sleeve all can seal the gas passage of gas pocket and recess appearance from top to bottom gliding in-process, thereby make outside gaseous through gas pocket and recess get into the back, can fully push up the top and push away the axle sleeve gliding, avoid taking place the gas and scurry the phenomenon outward, thereby quick release the ball, and then loosen the work piece fast, improve clamping efficiency.

Drawings

Fig. 1 is the utility model discloses a single-end pneumatic zero point frock clamp's spatial structure sketch map.

Fig. 2 is a top view of the single-head pneumatic zero point tool clamp of the present invention.

Fig. 3 is a sectional view taken along a-a in fig. 2.

Fig. 4 is a schematic structural view of the shaft member of the present invention.

Fig. 5 is a schematic structural view of the shaft sleeve 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 5, a single-head pneumatic zero point tooling fixture 100 of the present invention includes a housing 1, a shaft cover 2, a shaft core 3, a shaft sleeve 4, an elastic member 5 and balls 6, wherein the housing 1 has a receiving chamber 11 therein, the side wall of the housing 1 is provided with an air hole 12 communicating with the receiving chamber 11, the upper portion of the housing 1 is provided with a through hole 13 communicating with the upper end of the receiving chamber 11, the shaft cover 2 is mounted at the bottom of the housing 1 and seals the lower end of the receiving chamber 11, the shaft core 3 is disposed in the receiving chamber 11 and mounted on the shaft cover 2, the shaft core 3 is provided with a plug hole 31, the plug hole 31 communicates with the lower portion of the through hole 13, the through hole 13 and the plug hole 31 form a positioning space for positioning a workpiece 200, a limiting opening 7 communicating with the positioning space is formed between the upper end of the shaft core 3 and the housing 1, the shaft sleeve 4 is slidably sleeved on the shaft core 3 up and down, the shaft sleeve 4 includes a shaft sleeve upper portion 41 and a shaft sleeve 42 connected to the lower portion 41, the outer diameter of the lower part 42 of the shaft sleeve is larger than the outer diameter of the upper part 41 of the shaft sleeve, the upper part 41 of the shaft sleeve and the lower part 42 of the shaft sleeve are respectively clung to the inner side wall of the accommodating cavity 11, a groove 14 arranged around the upper part 41 of the shaft sleeve is arranged in the shell 1, the groove 14 is communicated with the air outlet end of the air hole 12, the opening of the groove 14 faces downwards and is positioned above the lower part 42 of the shaft sleeve, the elastic piece 5 is arranged between the shaft sleeve 4 and the shaft center piece 3 along the up-down direction, and the ball 6 is movably arranged at the limiting opening 7; the shaft sleeve 4 is used for abutting against the ball 6, so that the ball 6 protrudes to the positioning space and clamps the workpiece 200 positioned in the positioning space, or external air enters the air hole 12 to push the shaft sleeve 4 to slide downwards and release the ball 6, so that the ball 6 loosens the workpiece 200 positioned in the positioning space, and the workpiece 200 is taken out. Specifically, the groove 14 is a ring structure, but not limited thereto.

Referring to fig. 3 and 5, the upper portion 41 and the lower portion 42 of the shaft sleeve are coaxially disposed, the inner sidewall of the housing 1 is convexly provided with a limiting portion 15 for limiting the upward sliding of the shaft sleeve 4, the limiting portion 15 is located above the lower portion 42 of the shaft sleeve, the groove 14 is opened at the bottom of the limiting portion 15, and the outer side of the upper portion 41 of the shaft sleeve is tightly attached to the sidewall of the limiting portion 15. Further, a first seal ring 81 is provided between the boss upper portion 41 and the side wall of the stopper portion 15, thereby improving airtightness between the boss upper portion 41 and the side wall of the stopper portion 15.

Referring to fig. 3, a second sealing ring 82 is disposed between the lower portion 42 of the shaft sleeve and the inner sidewall of the housing 1, so as to improve the air tightness between the inner sidewalls of the housing 1 and the lower portion 42 of the shaft sleeve. A third seal 83 is provided between the hub 3 and the sleeve 4 to improve the air tightness between the hub 3 and the sleeve 4. A fourth seal 84 is provided between the hub 3 and the inner side wall of the housing 1 to improve the airtightness between the hub 3 and the inner side wall of the housing 1.

Referring to fig. 3, the balls 6 are respectively disposed in the limiting openings 7 along the axial direction of the axial member 3. Through setting up a plurality of balls 6 for axle sleeve 4 supports a plurality of balls 6 and bulges to the location space, thereby presss from both sides tightly the work piece 200 in the location space in each direction, improves the stability of pressing from both sides tightly. Further, a plurality of elastic members 5 are provided between the boss 4 and the shaft center member 3 in the circumferential direction of the shaft center member 3. The elastic member 5 may be an existing spring, but is not limited thereto. Specifically, the shaft center member 3 is provided with a plurality of positioning holes for positioning and installing the elastic members 5. The external air enters the air hole 12, passes through the groove 14 and pushes the shaft sleeve 4 to slide downwards, the shaft sleeve 4 releases the balls 6 and compresses the elastic piece 5, and the balls 6 loosen the workpiece 200 positioned in the positioning space, so that the workpiece 200 is taken out. After the external air is stopped being input into the air hole 12, the sleeve 4 can slide upwards and reset under the elastic restoring force of the elastic piece 5, so that the sleeve 4 is pressed against the ball 6 again, the ball 6 protrudes to the positioning space and clamps the workpiece 200 in the positioning space,

referring to fig. 1 and 3, the single-head pneumatic zero point tooling fixture 100 of the present invention further includes a bearing member 9 for bearing the workpiece 200, the bearing member 9 can be inserted into the positioning space, and a positioning groove 91 for the ball 6 to extend into and clamp is formed on a side wall of the bearing member 9. The carrier 9 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 groove 91 of the carrier 9.

With reference to fig. 1 to 5, the specific working principle of the single-head pneumatic zero point tool clamp 100 of the present invention is as follows:

clamping the workpiece 200: the elastic piece 5 pushes the shaft sleeve 4 upwards to slide upwards under the action of elastic restoring force, and the shaft sleeve 4 pushes the ball 6, so that the ball 6 is pushed to protrude to the positioning space and the workpiece 200 positioned in the positioning space is clamped.

Loosening the workpiece 200: external air is introduced through the air holes 12, the external air passes through the grooves 14 and pushes the shaft sleeve 4 to slide downwards, the shaft sleeve 4 releases the balls 6 and compresses the elastic pieces 5, and the balls 6 loosen the workpiece 200 positioned in the positioning space, so that the workpiece 200 is taken out.

To sum up, the utility model discloses a single-end pneumatic zero frock clamp 100 sets up through the inside at shell 1 around axle sleeve upper portion 41 and is located the recess 14 of the top of axle sleeve lower part 42, end intercommunication of giving vent to anger with recess 14 and gas pocket 12, make gas pocket 12 and recess 14 form a body structure, guarantee the gas tightness effect, and hug closely axle sleeve upper portion 41 and axle sleeve lower part 42 respectively on the inside wall of holding chamber 11, make axle sleeve 4 all can seal the gas pocket 12 and the vivid gas passage of recess 14 at gliding in-process from top to bottom, thereby make outside gaseous through gas pocket 12 and recess 14 get into the back, can fully push up the gliding of axle sleeve 4, avoid taking place the gas phenomenon of scurrying outward, thereby quick release ball 6, and then quick release work piece 200, improve clamping efficiency. The utility model discloses a pneumatic zero frock clamp 100 of single-end 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 (9)

1. A single-head pneumatic zero point tool clamp is characterized by comprising a shell, a shaft cover, a shaft core piece, a shaft sleeve, an elastic piece and balls, wherein an accommodating cavity is formed in the shell, an air hole communicated with the accommodating cavity is formed in the side wall of the shell, a through hole communicated with the upper end of the accommodating cavity is formed in the upper portion of the shell, the shaft cover is installed at the bottom of the shell and seals the lower end of the accommodating cavity, the shaft core piece is arranged in the accommodating cavity and installed on the shaft cover, the shaft core piece is provided with a jack, the jack is communicated with the lower portion of the through hole, a positioning space used for positioning a workpiece is formed by the through hole and the jack, a limiting opening communicated with the positioning space is formed between the upper end of the shaft core piece and the shell, the shaft sleeve is sleeved on the shaft core piece in a vertically sliding manner, and comprises an upper portion of the shaft sleeve and a lower portion of the shaft sleeve connected below the upper portion of the shaft sleeve, the outer diameter of the lower part of the shaft sleeve is larger than that of the upper part of the shaft sleeve, the upper part of the shaft sleeve and the lower part of the shaft sleeve are respectively clung to the inner side wall of the accommodating cavity, a groove arranged around the upper part of the shaft sleeve is arranged in the shell, the groove is communicated with the air outlet end of the air hole, the opening of the groove faces downwards and is positioned above the lower part of the shaft sleeve, the elastic piece is arranged between the shaft sleeve and the shaft core piece along the up-down direction, and the ball is movably arranged at the limiting opening; the shaft sleeve is abutted against the ball, so that the ball protrudes 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 release the ball.

2. The single-end pneumatic zero point tool clamp according to claim 1, wherein the upper portion of the shaft sleeve and the lower portion of the shaft sleeve are coaxially arranged, a limiting portion used for limiting the upward sliding of the shaft sleeve is convexly arranged on the inner side wall of the shell, the limiting portion is located above the lower portion of the shaft sleeve, the groove is formed in the bottom of the limiting portion, and the outer side of the upper portion of the shaft sleeve is tightly attached to the side wall of the limiting portion.

3. The single-end pneumatic zero point tooling clamp according to claim 2, wherein a first sealing ring is arranged between the upper part of the shaft sleeve and the side wall of the limiting part.

4. The single-end pneumatic zero point tooling clamp according to claim 1, wherein a second sealing ring is arranged between the lower part of the shaft sleeve and the inner side wall of the shell.

5. The single-ended pneumatic zero-point tooling fixture of claim 1, wherein a third seal ring is disposed between the mandrel member and the shaft sleeve.

6. The single-ended pneumatic zero-point tooling fixture of claim 1, wherein a fourth seal ring is disposed between the spindle member and the inner side wall of the housing.

7. The single-head pneumatic zero-point tooling fixture of claim 1, wherein a plurality of balls are respectively arranged in the limiting opening along the axis direction of the shaft core piece.

8. The single-ended pneumatic zero-point tooling fixture of claim 1, wherein a plurality of elastic members are disposed between the shaft sleeve and the shaft core member in a circumferential direction of the shaft core member.

9. The single-head pneumatic zero-point tooling fixture of claim 1, further comprising a bearing member for bearing a workpiece, wherein the bearing member can be 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.

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