CN214418225U - Anchor clamps for machining - Google Patents

Abstract

The utility model discloses an anchor clamps for machining, it belongs to mechanical clamping device technical field, including a supporting bench, the supporting bench has the face of placing, the below of supporting bench is equipped with the rotation seat, the rotation seat can be the axle rotation by first axis, first axis is perpendicular with the face of placing, be equipped with the semi-ring-shaped support arm with the movable connection of rotation seat on the rotation seat, the support arm can rotate around its centre of a circle, the support arm has first end, the height of first end is higher than the face of placing, first end is connected with the clamp block, the clamp block can move in the direction of being close to or keeping away from the centre of a circle of support arm; the utility model discloses utilize rotatable rotation seat and locate the support arm that rotates on the seat, can drive and press from both sides tight piece and move in the space that encircles the work piece, make and press from both sides tight piece and can be in the top of placing the face, according to the external shape of work piece, exert the extrusion force to the work piece from the optimal angle to with the effectual clamping of work piece and location, simple structure, convenient to use has higher universality.

Description

Anchor clamps for machining

Technical Field

The utility model relates to a machinery clamping technical field, concretely relates to anchor clamps for machining.

Background

In the machining production process, in order to facilitate machining and production, a workpiece is often required to be clamped, and the existing clamp usually clamps the workpiece in a horizontal and/or vertical clamping manner. With the continuous progress of production technology and the continuous improvement of the requirement of machining precision, the number of the special-shaped workpieces of which the side surfaces and the top surfaces are not conventional planes is increased, and for the special-shaped workpieces, the traditional clamp is difficult to effectively clamp and position in the horizontal and/or vertical directions, so that the requirements of machining and production cannot be met. Therefore, machining enterprises need to design and manufacture a clamp with a specific structure for clamping and positioning according to the specific shape of the special-shaped workpiece, so that the machining production cost is greatly increased, the production efficiency is reduced, and the clamp is a special clamp and does not have universality any more.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a pair of anchor clamps for machining utilizes rotatable rotation seat and locates the support arm that rotates on the seat, can make and press from both sides tight piece in the top of placing the face, according to the external shape of work piece, applys the extrusion force to the work piece from the optimal angle to with the effectual clamping of work piece and location, simple structure, convenient to use has reduced manufacturing cost, has improved production efficiency, and has higher universality.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the fixture for machining comprises a supporting table, wherein a placing surface is arranged on the supporting table, a rotating seat is arranged below the supporting table, the rotating seat can rotate by taking a first axis as a shaft, the first axis is perpendicular to the placing surface, a semi-annular supporting arm movably connected with the rotating seat is arranged on the rotating seat, the supporting arm can rotate around the circle center of the supporting arm, a first end is arranged on the supporting arm, the height of the first end is higher than that of the placing surface, the first end is connected with a clamping block, and the clamping block can move in the direction close to or far away from the circle center of the supporting arm.

As a preferred technical scheme, the supporting table is provided with supporting legs at the bottom, the supporting legs are fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the rotating seat, and a first positioning assembly for positioning the rotating angle of the rotating seat is arranged between the rotating shaft and the rotating seat.

As a preferable technical solution, the rotating shaft and the rotating seat are rotatably connected by a bearing, the first positioning component is a first positioning screw, and one end of the first positioning screw passes through the rotating seat and abuts against the rotating shaft.

As a preferred technical scheme, a semicircular slideway is arranged on the rotating seat, the supporting arm is connected with the slideway in a sliding manner, and a second positioning assembly for positioning the position of the supporting arm is arranged between the supporting arm and the slideway.

As a preferable technical solution, the slide is provided with a hole penetrating through the rotating seat, the second positioning assembly is provided with at least two second positioning screws, and one ends of the second positioning screws penetrate through the rotating seat and are abutted to the support arms.

As a preferred technical solution, the center of the supporting arm is located at the intersection point of the placing surface and the first axis; and/or a semi-annular hole groove for the first end to pass through is formed in the supporting platform.

As a preferred solution, the support arm is movable between a first position and a second position; in the first position, the clamping block moves in a horizontal direction; in the second position, the clamping block moves in a vertical direction.

As a preferred technical scheme, a first limit block and a second limit block are arranged on the supporting arm; when the first position is reached, the first limiting block is abutted against the rotating seat; and when the second position is reached, the second limiting block is abutted to the rotating seat.

As a preferred technical scheme, a telescopic assembly is arranged between the first end and the clamping block to connect, and the telescopic assembly drives the clamping block to move.

As a preferable technical solution, the placing surface is provided with a positioning block.

The utility model has the advantages of that:

the utility model discloses utilize rotatable rotation seat and locate the support arm that rotates on the seat, can drive and press from both sides tight piece and move in the space that encircles the work piece, make and press from both sides tight piece and can be in the top of placing the face, according to the external shape of work piece, exert the extrusion force to the work piece from the optimal angle to with the effectual clamping of work piece and fix a position, simple structure, convenient to use has reduced manufacturing cost, has improved production efficiency, and has higher universality.

Drawings

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

FIG. 2 is a schematic view of the support arm of FIG. 1 in a second position;

figure 3 is a top view of the support table of figure 1.

In the figure: 1-supporting table, 11-placing surface, 12-supporting leg, 13-semi-annular hole groove, 2-rotating seat, 21-rotating shaft, 22-first positioning component, 23-second positioning component, 3-supporting arm, 31-first end, 32-first limiting block, 33-second limiting block, 4-clamping block, 41-telescopic component and 5-positioning block.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-3, an embodiment of a machining fixture of the present invention includes a supporting table 1, the supporting table 1 has a placing surface 11, and a workpiece can be placed on the placing surface 11; a rotating seat 2 is arranged below the supporting table 1, the rotating seat 2 can rotate by taking a first axis as a shaft, the first axis is vertical to the placing surface 11, a semi-annular supporting arm 3 movably connected with the rotating seat 2 is arranged on the rotating seat 2, the supporting arm 3 can rotate around the circle center of the supporting arm, a first end 31 is arranged on the supporting arm 3, the height of the first end 31 is higher than that of the placing surface 11, the first end 31 is connected with a clamping block 4, the clamping block 4 can move in the direction close to or far away from the circle center of the supporting arm 3, and the position of the clamping block 4 in the circumferential direction of a workpiece can be adjusted by rotating the rotating seat 2; through removing the support arm 3, can adjust and press from both sides tight piece 4 position on the vertical direction of work piece to can adjust to the face department that can receive force of the work piece optimality with pressing from both sides tight piece 4, be convenient for press from both sides tightly the work piece.

Referring to fig. 1 and 2, in order to fix the support platform 1, the support platform 1 may be provided with legs 12 at the bottom; the supporting legs 12 are fixedly connected with a rotating shaft 21, the rotating shaft 21 is rotatably connected with the rotating seat 2, free rotation of the rotating seat 2 can be achieved, specifically, the supporting legs 12 and the rotating shaft 21 can be fixedly connected through a cross beam, and the rotating shaft 21 and the rotating seat 2 can be rotatably connected through a bearing; rotation axis 21 and rotation seat 2 between be equipped with the first locating component 22 that the seat 2 turned angle is rotated in the location, through first locating component 22 can be convenient will rotate seat 2 location in arbitrary turned angle department, it is concrete, first locating component 22 can establish to first set screw, the one end of first set screw pass rotate seat 2 and with the 21 butt of axis of rotation, can adjust axis of rotation 21 and the frictional force that rotates between the seat 2 through rotating first set screw, realize rotating the rotation and the location of seat 2.

In this embodiment, referring to fig. 1 and 2, a semicircular slide way is disposed on the rotating base 2, and the supporting arm 3 is slidably connected to the slide way to enable the supporting arm 3 to rotate around the center of the circle, specifically, the slide way may be a hole penetrating through the rotating base 2, the hole has a radian consistent with that of the supporting arm 3, and the cross section of the hole is consistent with that of the supporting arm 3; be equipped with the second locating component 23 of 3 positions of location support arm between support arm 3 and the slide, can fix a position support arm 3 in its optional position department that removes through second locating component 23, and is concrete, second locating component 23 can be established to two at least second set screw, the one end of second set screw all passes and rotates seat 2 and with support arm 3 butt, can adjust support arm 3 and rotate the frictional force between the seat 2 through rotating second set screw, realize the removal and the location of support arm 3.

It should be noted that the center of the supporting arm 3 should be located at the intersection of the placing surface 11 and the first axis, and the first end 31 can be adjusted to any position on the hemispherical surface, so that the position of the clamping block 4 can be adjusted conveniently; referring to fig. 3, when the supporting platform 1 is large, the supporting platform 1 may be provided with a semi-annular slot 13 for the first end 31 to pass through, which will not interfere with the movement of the supporting arm 3.

On the basis of the previous embodiment, the support arm 3 is movable between a first position and a second position; referring to fig. 1, at this time, the supporting arm 3 is at the first position, the clamping block 4 can move along the horizontal direction, at this time, the first limiting block 32 abuts against the rotating seat 2, and the limiting supporting arm 3 continues to rotate counterclockwise; referring to fig. 2, at this time, the supporting arm 3 is at the second position, the clamping block 4 can move in the vertical direction, at this time, the second limiting block 33 abuts against the rotating seat 2, and the limiting supporting arm 3 continues to rotate clockwise; the clamping block 4 can be adjusted to any spatial position of the placing surface 11, and the workpiece can be clamped conveniently.

In this embodiment, referring to fig. 1 and fig. 2, a telescopic assembly 41 should be disposed between the first end 31 and the clamping block 4 for connection, and the telescopic assembly 41 drives the clamping block 4 to move; specifically, the telescopic assembly 41 may be configured as a cylinder, an electric push rod, or a knob plunger.

Furthermore, a positioning block 5 is arranged on the placing surface 11, the positioning block 5 is arranged on one side opposite to the clamping block 4, when a workpiece is clamped, one side surface of the workpiece is abutted against the positioning block 5, and then the position of the clamping block 4 on the other side surface of the workpiece is adjusted, so that the workpiece can be clamped; specifically, the positioning block 5 is detachably connected with the placing surface 11, so that the replacement is convenient; the positioning block 5 is correspondingly matched with the butt joint surface of the workpiece, so that the clamping effect can be improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)

1. The fixture for machining is characterized by comprising a supporting table, wherein a placing surface is arranged on the supporting table, a rotating seat is arranged below the supporting table, the rotating seat can rotate by taking a first axis as a shaft, the first axis is perpendicular to the placing surface, a semi-annular supporting arm movably connected with the rotating seat is arranged on the rotating seat, the supporting arm can rotate around the circle center of the supporting arm, a first end is arranged on the supporting arm, the height of the first end is higher than that of the placing surface, the first end is connected with a clamping block, and the clamping block can move in the direction close to or far away from the circle center of the supporting arm.

2. The machining jig as claimed in claim 1, wherein a leg is provided at a bottom of the support table, a rotation shaft is fixedly connected to the leg, the rotation shaft is rotatably connected to the rotation base, and a first positioning member for positioning a rotation angle of the rotation base is provided between the rotation shaft and the rotation base.

3. The jig for machining according to claim 2, wherein the rotating shaft and the rotating base are rotatably connected by a bearing, the first positioning member is a first positioning screw, and one end of the first positioning screw passes through the rotating base and abuts against the rotating shaft.

4. The machining jig of claim 1, wherein the rotary base is provided with a semi-annular slide, the support arm is slidably connected to the slide, and a second positioning member for positioning the support arm is provided between the support arm and the slide.

5. The machining jig according to claim 4, wherein the slide is provided as a hole penetrating the rotating base, the second positioning member is provided as at least two second positioning screws, and one end of each of the second positioning screws passes through the rotating base and abuts against the support arm.

6. The jig for machining according to claim 1, wherein a center of the supporting arm is located at an intersection of the placement surface and the first axis; and/or a semi-annular hole groove for the first end to pass through is formed in the supporting platform.

7. A machining fixture according to claim 1, wherein said support arm is movable between a first position and a second position; in the first position, the clamping block moves in a horizontal direction; in the second position, the clamping block moves in a vertical direction.

8. The machining jig of claim 7, wherein the support arm has a first stopper and a second stopper; when the first position is reached, the first limiting block is abutted against the rotating seat; and when the second position is reached, the second limiting block is abutted to the rotating seat.

9. A machining fixture according to claim 1, wherein a telescopic assembly is provided between the first end and the clamping block for connection, the telescopic assembly moving the clamping block.

10. The jig for machining according to claim 1, wherein a positioning block is provided on the mounting surface.

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