CN212239298U

CN212239298U - Drilling clamp jaw

Info

Publication number: CN212239298U
Application number: CN202020763763.2U
Authority: CN
Inventors: 马会民
Original assignee: Henan Hongyuan Wheel Co Ltd
Current assignee: Henan Hongyuan Wheel Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-29
Anticipated expiration: 2030-05-11

Abstract

The utility model provides a drilling clamp claw, belonging to the technical field of machining; the clamping jaw comprises a clamping block, the clamping block is fan-shaped, the front surface of the clamping block is in a step shape, and a first step, a second step and a third step are sequentially arranged from the large end to the small end; the back of pressing from both sides tight piece is equipped with the connector, the connector follows the axis setting of pressing from both sides tight piece. According to the scheme, the support contact surface is added to the clamping jaw of the drilling clamp, so that tool vibration can be effectively avoided, and the drilling precision and the surface quality of the hole are improved; the stepped structure of the clamping block can clamp and fix the central hole of the spoke plate, a plurality of cutters can be processed in one-time tool setting, repeated tool setting and alignment are not needed, and the processing efficiency is improved.

Description

Drilling clamp jaw

Technical Field

The utility model relates to the technical field of machining, especially indicate a boring grab jack catch.

Background

At present, two main drilling modes are adopted for the small-size spoke plate ring, one mode is to adopt a drill jig to drill on a common radial drilling machine, the machining efficiency is low, and the input cost of the drill jig is high; the other type is that a numerical control drilling machine is adopted for processing, the outer diameter of a workpiece can only be clamped due to small size of the workpiece, but the precision of the outer diameter size of the workpiece is not high, the cutter needs to be aligned again after one piece of workpiece is processed, the efficiency is not improved, and the phenomenon of cutter vibration exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a boring grab jack catch to solve small dimension radials circle because the size undersize, add man-hour in drilling, can only carry out the clamping to it through the external diameter, and its external diameter size precision is not high, need repeat tool setting alignment when processing many, efficiency is not high, and has the problem of the sword phenomenon that shakes.

In order to solve the technical problem, the utility model provides a following technical scheme:

a jack catch of a drilling clamp comprises a clamping block, wherein the clamping block is fan-shaped, the front surface of the clamping block is in a step shape, and a first step, a second step and a third step are sequentially arranged from the large end to the small end; the back of pressing from both sides tight piece is equipped with the connector, the connector follows the axis setting of pressing from both sides tight piece.

The clamping jaw is fixedly connected with the sliding block of the chuck, the sliding block is arranged in the clamping groove, and the end face of the connecting body is provided with a sawtooth part matched with the sliding block.

The clamping jaw is provided with a countersunk hole penetrating through the clamping block and the connecting body, and a cylindrical head socket head cap screw is installed in the countersunk hole so as to fixedly connect the clamping jaw and the sliding block.

Wherein the sides of the first step, the second step and the third step are coaxial arcs.

And the end part of the connecting body is provided with a notch matched with the arc end surface of the first-stage ladder.

Wherein, the jack catch is the axisymmetrical structure.

Wherein the angle of the clamping block is 120 degrees.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

in the scheme, the support contact surface is added to the clamping jaw of the drilling clamp, so that tool vibration can be effectively avoided, and the drilling precision and the surface quality of the hole are improved; the stepped structure of the clamping block can clamp and fix the central hole of the spoke plate, a plurality of cutters can be processed in one-time tool setting, repeated tool setting and alignment are not needed, and the processing efficiency is improved.

Drawings

FIG. 1 is a schematic view of the installation of the jaws of the drilling jig of the present invention;

FIG. 2 is a front view of the jaw of the drilling jig of the present invention;

FIG. 3 is a view taken along line A of FIG. 2;

FIG. 4 is a side view of the jaws of the boring jig of the present invention;

figure 5 is the working schematic diagram of the jaw of the drilling jig of the utility model.

[ reference numerals ]

1. A linker;

2. a clamping block;

3. a countersunk hole;

4. a serration;

5. a first step;

6. a second step;

7. a third step;

8. a web;

9. and (4) a cylinder body.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, an embodiment of the present invention provides a clamping jaw of a drilling clamp, the clamping jaw includes a clamping block 2, the clamping block 2 is fan-shaped, the front surface is stepped, a first step 5, a second step 6 and a third step 7 are sequentially arranged from the large end to the small end, the clamping block 2 is provided with a supporting contact surface, and a tool vibration can be avoided; the back of the clamping block 2 is provided with a connecting body 1 for connection, and the connecting body 1 is arranged along the central axis of the clamping block 2.

The chuck body has radially seted up the draw-in groove, and sliding connection has the sliding block in the draw-in groove, jack catch and sliding block fixed connection, be equipped with on the terminal surface of the connector 1 of jack catch with two sawtooth parts 4 of sliding block looks adaptation.

As shown in fig. 2 and 4, the clamping jaw is provided with two counter bores 3 penetrating through the clamping block 2 and the connecting body 1, and a socket head cap screw is installed in the counter bore 3 to fixedly connect the clamping jaw and the sliding block.

As shown in fig. 1 and 2, the first step 5, the second step 6 and the third step 7 are formed by concentric circular arcs on the side.

As shown in fig. 5, the plane of the second-stage step 6 is used for supporting the spoke plate 8 of the spoke plate ring, so that the perpendicularity of the drilled hole and the spoke plate 8 can be ensured; the vertical surface of the third-stage step 7 is used for clamping a central hole of a spoke plate, after the cutter is set for one time, the cutter is not required to be set and aligned again every piece, and the processing efficiency is improved.

As shown in fig. 4, the end of the connector 1 is provided with a notch matched with the arc end face of the first step 5, the size of the notch is smaller than the inner diameter of the cylinder 9, and the welding seam is avoided to avoid interference.

As shown in fig. 3, the jaws are of an axisymmetrical structure.

In this embodiment, the angle of the clamping block 2 is 120 degrees, and the three jaws are used in combination, and are suitable for a three-jaw chuck.

In the scheme, the support contact surface is added to the clamping jaw of the drilling clamp, so that tool vibration can be effectively avoided, and the drilling precision and the surface quality of the hole are improved; the stepped structure of the clamping block can clamp and fix the central hole of the spoke plate, a plurality of parts can be processed by once tool setting, repeated tool setting and alignment are not needed, and the processing efficiency is improved; the size of the gap at the end part of the connector is smaller than the inner diameter of the cylinder, and the welding line is left to avoid interference.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A jack catch of a drilling clamp is characterized by comprising a clamping block, wherein the clamping block is fan-shaped, the front surface of the clamping block is in a step shape, and a first step, a second step and a third step are sequentially arranged from a large end to a small end; the back of pressing from both sides tight piece is equipped with the connector, the connector follows the axis setting of pressing from both sides tight piece.

2. The drilling clamp jaw according to claim 1, characterized in that the jaw is fixedly connected with a sliding block of a chuck, the sliding block is arranged in a clamping groove, and a sawtooth part matched with the sliding block is arranged on the end surface of the connecting body.

3. The jig for drilling a hole as claimed in claim 2 wherein the jaw defines a counter bore through the clamping block and the connector, the counter bore having a socket head cap screw mounted therein to fixedly connect the jaw to the slider.

4. The drill jig jaw of claim 1, wherein the sides of the first step, the second step and the third step are coaxial arcs of a circle.

5. The drill jig jaw of claim 1, wherein the end of the connector body is provided with a notch adapted to the arcuate end surface of the first step.

6. The drill jig jaw of claim 1, wherein the jaw is of an axisymmetric configuration.

7. The drill jig jaw of claim 1, wherein the angle of the gripping block is 120 degrees.