Center bolt inclined hole drilling clamp

Abstract

The utility model provides a center bolt inclined hole drilling clamp, which belongs to the field of machining and comprises a base, a clamp seat is arranged on the base, a plurality of positioning units used for positioning center bolts are arranged in the clamp seat, each positioning unit comprises a placing hole used for placing the center bolt, an opening of each placing hole is arranged on the top surface of the clamp seat, and an inclined hole is formed in the top surface of the clamp seat. A collet is placed in the placing hole, and a chuck used for clamping the center bolt is arranged in the collet. The base is provided with a plurality of bottom holes corresponding to the placing holes and used for the air cylinder to push the collet to ascend so that the chuck can clamp the center bolt. Compared with the prior art, according to the clamp for drilling the inclined hole in the center bolt, the center bolt is placed in the placing hole, the collet chuck ascends to enable the clamping head to clamp the center bolt, the center bolt is prevented from rotating at will, scrap iron generated in the machining process can be discharged from the scrap discharging hole, the clamp is simple and convenient to use, and the production and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to a clamp for drilling an inclined hole for a center bolt. Background Art

[0002] When drilling an inclined hole, the existing center bolt needs to be clamped and positioned. However, when the existing center bolt is clamped, the center bolt is prone to shaking, and when drilling the inclined hole, the iron filings are easily accumulated in the clamping hole, which is inconvenient to discharge, thereby reducing the production and processing efficiency. Utility Model Content

[0003] In view of the above problems, the utility model provides a center bolt inclined hole drilling fixture, which places the center bolt in the placement hole, and uses the collet to rise so that the chuck clamps the center bolt to prevent the center bolt from rotating arbitrarily. The utility model is simple and convenient, and improves production and processing efficiency.

[0004] The technical solution adopted by the utility model is:

[0005] A center bolt inclined hole drilling fixture comprises a base, a fixture seat is placed on the base, a plurality of positioning units for positioning the center bolt are arranged in the fixture seat, each positioning unit comprises a placement hole for placing the center bolt, the opening of the placement hole is arranged on the top surface of the fixture seat, a collet is placed in the placement hole, and a chuck for clamping the center bolt is arranged in the collet; a plurality of bottom holes corresponding to the placement holes are arranged on the base, and the cylinder pushes the collet to rise so that the chuck clamps the center bolt.

[0006] Preferably, the chuck is provided with at least three elastic clamping arms for clamping the central bolt, and an upper conical block is provided on the outer wall of each clamping arm, and the upper conical blocks on each clamping arm surround and form an upper conical seat; the inner wall of the collet forms a lower conical hole that cooperates with the upper conical seat.

[0007] Preferably, the side wall of the clamp seat is further provided with a plurality of latch holes corresponding to the placement holes, each latch hole is matched with a latch for limiting the descending height of the collet, and the side wall of the collet is provided with a strip groove matched with the latch.

[0008] Preferably, a placement plate is installed above each placement hole, and a socket for inserting a central bolt into the placement hole is provided on the placement plate; and positioning holes for positioning the placement plate are provided around each placement hole.

[0009] Preferably, the bottom of the clamp seat is further provided with a plurality of chip removal holes for discharging iron chips, and each chip removal hole corresponds to a placement hole in the positioning unit.

[0010] More preferably, the base is provided with a plurality of discharge grooves, each of which corresponds to each chip discharge hole.

[0011] Preferably, the top of the clamp seat is also provided with a plurality of taking grooves for conveniently taking the center bolt, each taking groove is a concave groove, each taking groove is arranged on the top of the clamp seat, and each taking groove corresponds to the placement hole of each positioning unit.

[0012] More preferably, each taking groove comprises a first groove and a second groove, and the first groove and the second groove are symmetrically distributed on both sides of the placement hole.

[0013] Preferably, the clamp seat is mounted on the base by bolts; mounting seats are formed at both ends of the clamp seat, and upper mounting holes are provided on the mounting seats; and lower mounting holes corresponding to the upper mounting holes are provided on the base.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the utility model provides a center bolt inclined hole drilling fixture, the center bolt is placed in the placement hole, the collet is raised to clamp the center bolt to prevent the center bolt from rotating arbitrarily, and the iron chips generated during the processing can be discharged from the chip removal hole, which is simple and convenient and improves the production and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , which is a schematic diagram of a center bolt oblique hole drilling fixture provided by the utility model Figure 1 ;

[0016] Figure 2 , which is a schematic diagram of a center bolt oblique hole drilling fixture provided by the utility model Figure 2 ;

[0017] Figure 3 , which is an exploded view of a center bolt oblique hole drilling fixture provided by the utility model;

[0018] Figure 4 , which is a cross-sectional view of a center bolt oblique hole drilling fixture provided by the utility model;

[0019] Figure 5 , which is a schematic diagram of a chuck and a collet in a center bolt oblique hole drilling fixture provided by the utility model. DETAILED DESCRIPTION

[0020] The preferred implementation modes provided by the utility model are described in detail according to the accompanying drawings.

[0021] Figures 1 to 5 , which is a preferred embodiment of a center bolt oblique hole drilling fixture provided by the utility model. Figures 1 to 5As shown, the center bolt inclined hole drilling fixture includes a base 10, on which a fixture seat 20 is placed, and the fixture seat 20 is provided with a plurality of positioning units 21 for positioning the center bolt, each positioning unit includes a placement hole 211 for placing the center bolt 100, the opening of the placement hole 211 is arranged on the top surface of the fixture seat, a collet 212 is placed in the placement hole 211, and a chuck 213 for clamping the center bolt is arranged in the collet 212; the base 10 is provided with a plurality of bottom holes 11 corresponding to the placement holes 211 and used for the cylinder to push the collet up so that the chuck clamps the center bolt, so that when the center bolt 100 is clamped and positioned, the center bolt 100 is placed in the chuck 23 in the placement hole 211, and the cylinder under the base 10 is used to drive the collet 212 to rise through the bottom hole 11 so that the chuck 213 clamps the center bolt 100 to prevent the center bolt 100 from rotating arbitrarily, which is simple and convenient, and improves the production and processing efficiency.

[0022] like Figure 5 As shown, the chuck 213 is provided with at least three elastic clamping arms 2131 for clamping the center bolt, and the outer wall of each clamping arm is provided with an upper conical block 2132, and the upper conical blocks on each clamping arm are surrounded to form an upper conical seat; the inner wall of the collet 212 forms a lower conical hole 2121 that cooperates with the upper conical seat; due to the gap between adjacent elastic clamping arms 2131, the elastic clamping arms 2131 on the chuck 213 are opened in a trumpet shape, which is convenient for inserting the center bolt 100; when the center bolt 100 is inserted, the cylinder drives the collet 212 to rise through the bottom hole 11, and the lower conical hole 2121 in the collet 212 cooperates with the upper conical seat to drive the elastic clamping arms 2131 to close to clamp the center bolt 100; and when the cylinder drives the collet 212 to descend, the elastic clamping arms 2131 open, which is convenient for taking the center bolt 100.

[0023] The side wall of the clamp seat 20 is also provided with a plurality of latch holes 214 corresponding to the placement holes, each latch hole is matched with a latch for limiting the descending height of the collet, and the side wall of the collet 212 is provided with a strip groove 2122 matched with the latch. When the cylinder drives the collet 212 to rise through the bottom hole 11, the latch does not affect the rising of the collet 212; and when the cylinder drives the collet 212 to descend, the latch cooperates with the strip groove 212 to limit the descending height of the collet 212.

[0024] A placement plate 215 is also installed above each placement hole 211, and the placement plate 215 is provided with a socket 2151 for the center bolt to be inserted into the placement hole; each placement hole 211 is provided with positioning holes 2111 around it for positioning the placement plate 215, and the diameter of the socket 2151 is smaller than the diameter of the ridge on the center bolt, thereby preventing the center bolt 100 from being fully inserted into the placement hole 211.

[0025] The bottom of the fixture seat 20 is also provided with a plurality of chip discharge holes 216 for discharging iron chips, each of which corresponds to a placement hole 211 in the positioning unit. The base 10 is provided with a plurality of discharge slots 12, each of which corresponds to each of the chip discharge holes 216, so as to increase the area of ​​the discharge port and facilitate the discharge of iron chips after processing.

[0026] like Figures 1 to 3 As shown, the top of the clamp seat is also provided with a plurality of taking grooves 217 for conveniently taking the collet 212 and the chuck 213, each taking groove is a concave groove, each taking groove is arranged on the top of the clamp seat, and each taking groove corresponds to the placement hole 211 of each positioning unit. Each taking groove includes a first groove 2171 and a second groove 2172, and the first groove 2171 and the second groove 2172 are symmetrically distributed on both sides of the placement hole 211.

[0027] The clamp seat 20 is mounted on the base 10 by bolts; mounting seats 22 are formed at both ends of the clamp seat 20, and upper mounting holes 221 are provided on the mounting seats 22; a lower mounting hole 13 corresponding to the upper mounting hole is provided on the base 10, and bolts pass through the upper mounting hole 221 and the lower mounting hole 13 to fix the clamp seat 20 on the base 10.

[0028] When using the center bolt inclined hole drilling fixture, the center bolt 100 is placed between the opened elastic clamp arms 2131 of the chuck 23 in the corresponding placement hole 211, and the cylinder under the base 10 is used to drive the collet 212 to rise through the bottom hole 11, and the lower conical hole 2121 in the collet 212 cooperates with the upper conical seat to drive the elastic clamp arms 2131 to close to clamp the center bolt 100; when the cylinder drives the collet 212 to descend, the lower conical hole 2121 in the collet 212 is separated from the upper conical seat, and the elastic clamp arms 2131 are opened, so that the center bolt 100 is convenient to take; the iron chips generated in the process of drilling the inclined hole are discharged from the discharge trough 11 and the chip discharge hole 214, which is simple and convenient.

[0029] In summary, the technical solution of the utility model can fully and effectively achieve the above-mentioned utility model purpose, and the structure and functional principle of the utility model have been fully verified in the embodiments, and can achieve the expected effect and purpose. Without departing from the principle and essence of the utility model, various changes or modifications can be made to the embodiments of the utility model. Therefore, the utility model includes all replacement contents within the scope mentioned in the scope of the patent application, and any equivalent changes made within the scope of the patent application of the utility model are within the scope of the patent application of this case.

Claims

1. A center bolt oblique hole drilling fixture, comprising a base, a fixture seat is placed on the base, and the characteristics are: The clamp seat is provided with a plurality of positioning units for positioning the center bolt, each positioning unit includes a placement hole for placing the center bolt, the opening of the placement hole is arranged on the top surface of the clamp seat, a collet is placed in the placement hole, and a chuck for clamping the center bolt is arranged in the collet; the base is provided with a plurality of bottom holes corresponding to the placement holes and used for the cylinder to push the collet up so that the chuck clamps the center bolt.

2. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: The chuck is provided with at least three elastic clamping arms for clamping the central bolt, and an upper conical block is provided on the outer wall of each clamping arm. The upper conical blocks on each clamping arm surround and form an upper conical seat; the inner wall of the collet forms a lower conical hole that cooperates with the upper conical seat.

3. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: The side wall of the clamp seat is also provided with a plurality of pin holes corresponding to the placement holes, each pin hole is matched with a pin for limiting the descending height of the collet, and the side wall of the collet is provided with a strip groove matched with the pin.

4. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: A placing plate is also installed above each placing hole, and a plug hole for inserting a central bolt into the placing hole is arranged on the placing plate; and positioning holes for positioning the placing plate are arranged around each placing hole.

5. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: The bottom of the clamp seat is also provided with a plurality of chip discharge holes for discharging iron chips, and each chip discharge hole corresponds to a placement hole in the positioning unit.

6. The center bolt oblique hole drilling fixture according to claim 5, characterized in that: The base is provided with a plurality of discharge grooves, each of which corresponds to each chip discharge hole.

7. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: The top of the clamp seat is also provided with a plurality of taking grooves for conveniently taking the center bolt, each taking groove is a concave groove, each taking groove is arranged on the top of the clamp seat, and each taking groove corresponds to the placement hole of each positioning unit.

8. The center bolt oblique hole drilling fixture according to claim 7, characterized in that: Each taking groove comprises a first groove and a second groove, and the first groove and the second groove are symmetrically distributed on both sides of the placement hole.

9. The center bolt oblique hole drilling fixture according to claim 1, characterized in that: The clamp seat is mounted on the base by bolts; mounting seats are formed at both ends of the clamp seat, and upper mounting holes are arranged on the mounting seats; and lower mounting holes corresponding to the upper mounting holes are arranged on the base.

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