CN212822914U

CN212822914U - Shaft sleeve type drilling clamp

Info

Publication number: CN212822914U
Application number: CN202021503238.3U
Authority: CN
Inventors: 刘霞; 闫化锦; 孟泰; 袁朝兵
Original assignee: Guizhou University of Engineering Science
Current assignee: Guizhou University of Engineering Science
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-30
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a shaft sleeve class boring grab, include: a base; the upright post is arranged on the base; one end of the positioning mandrel is fixedly arranged on the upright post, the free end of the positioning mandrel is a threaded post, and the outer circle of the positioning mandrel is matched with the surface of an inner hole of the shaft sleeve; a locking assembly, comprising: the first gasket is sleeved on the free end of the positioning mandrel and used for abutting against the shaft sleeve; the first nut is sleeved on the free end of the positioning mandrel and positioned outside the gasket, and the first nut is in threaded connection with the threaded column of the positioning mandrel so as to fix the shaft sleeve on the positioning mandrel; a drill plate assembly comprising: the drilling plate is arranged on the side surface of the positioning mandrel; the drill bushing is arranged on the drill plate, and the direction of the drill bushing is set to be towards the preset position of the positioning mandrel. This axle sleeve class boring grab is used on ordinary lathe, can effectual improvement axle sleeve class drilling processing's efficiency and quality.

Description

Shaft sleeve type drilling clamp

Technical Field

The utility model relates to a shaft sleeve type boring grab belongs to shaft sleeve type drilling technical field.

Background

Machine tool fixtures are important process equipment in the machine manufacturing industry. For the drilling processing of shaft sleeve type parts, the requirement on the processing precision of workpieces is higher and higher along with the production. In an automatic production line, due to the continuous working of a machine tool and the frequent clamping, the action of the clamp is more prominent, the precision and the stability of the clamp directly influence the production benefit of a workpiece, and due to the fact that a high-precision machine tool is difficult to popularize in a short period of time, the effort of improving the positioning precision of the clamp is made to be the key for solving the problem so that a workpiece with higher quality can be machined on a common machine tool.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a shaft sleeve class boring grab installs it on ordinary lathe, can improve the efficiency and the quality of shaft sleeve class drilling processing to overcome the not enough of prior art existence.

The technical scheme of the utility model is that: a bushing-type boring grab, the grab includes:

a base;

the upright post is arranged on the base;

one end of the positioning mandrel is fixedly arranged on the upright post, the free end of the positioning mandrel is a threaded post, and the outer circle of the positioning mandrel is matched with the surface of an inner hole of the shaft sleeve;

a locking assembly, comprising:

the first gasket is sleeved on the free end of the positioning mandrel and used for abutting against the shaft sleeve;

the first nut is sleeved on the free end of the positioning mandrel and positioned outside the gasket, and the first nut is in threaded connection with the threaded column of the positioning mandrel so as to fix the shaft sleeve on the positioning mandrel;

a drill plate assembly comprising:

the drilling plate is arranged on the side surface of the positioning mandrel;

the drill bushing is arranged on the drill plate, and the direction of the drill bushing is set to be towards the preset position of the positioning mandrel.

In one example, the middle part of the positioning mandrel is formed with a convex ring protruding in the radial direction thereof, and the convex ring is suitable for blocking the movement of the shaft sleeve.

In one example, the convex ring is provided with a chamfer on the surface contacting with the shaft sleeve, and the chamfer is matched with an inner chamfer on the shaft sleeve.

In one example, the upright post is provided with a mounting through hole, the positioning spindle is arranged in the mounting through hole in a penetrating manner, one side of the positioning spindle abuts against the outside of one end of the mounting through hole by virtue of the convex ring, and the other side of the positioning spindle is fixedly arranged at the other end of the mounting through hole by virtue of a fixing device.

In one example, the connecting portion of the positioning mandrel and the fixing device is a threaded column, the fixing device includes a second gasket and a second nut, the second gasket is sleeved on the positioning mandrel, and the second nut is in threaded connection with the threaded column of the positioning mandrel.

In one example, a key is mounted between the positioning spindle and the mounting through hole to prevent rotation of the positioning spindle relative to the mounting through hole.

In one example, the drill plate is fixed at the top end of the upright column and is positioned right above the positioning mandrel.

In one example, the spacer is of a diameter configured to abut against an end surface of the sleeve.

In one example, the positioning mandrel is provided with a space corresponding to the drilling position of the shaft sleeve.

The utility model has the advantages that: this axle sleeve class boring grab is used on ordinary lathe, fixes a position through location mandrel and axle sleeve, fixes the axle sleeve on the location mandrel fast through locking Assembly again, drills the axle sleeve through directional drill bushing at last, can effectual improvement axle sleeve class drilling processing's efficiency and quality.

Drawings

Fig. 1 is a front view of a shaft sleeve type drilling jig according to an embodiment of the present invention;

fig. 2 is a top view of the shaft sleeve type drilling jig according to the embodiment of the present invention;

description of reference numerals:

the drilling tool comprises a base 1, a stand column 2, a positioning mandrel 3, a first gasket 4, a first nut 5, a convex ring 6, a drilling plate 7, a drilling sleeve 8, a second gasket 9, a second nut 10, a key 11 and a shaft sleeve 12.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a shaft sleeve type drilling jig according to an embodiment of the present invention includes a base 1, a column 2, a positioning mandrel 3, a locking assembly, and a drill plate 7.

The base 1 is mainly used for installing the upright post 2, the positioning mandrel 3, the locking assembly and the drilling plate 7 assembly. When in work, the base 1 can be fixedly arranged on a common machine tool. For example, it can be mounted on the table of a machine tool by means of fastening bolts.

And the upright post 2 is mainly used for installing the positioning mandrel 3 and the drilling plate 7 assembly. The upright post 2 is fixed on the base 1. The upright 2 may be integrally formed with the base 1.

And one end of the positioning mandrel 3 is fixedly arranged on the upright post 2, the other end of the positioning mandrel 3 is used for installing a shaft sleeve 12, and the free end of the positioning mandrel 3 is a threaded column. A collar 6 is formed at the center of the positioning spindle 3 to protrude in the radial direction thereof, and the collar 6 serves to block the movement of the sleeve 12. Preferably, the outer circle of the positioning mandrel 3 is matched with the inner hole surface of the shaft sleeve 12 to improve the machining precision.

And the locking assembly is mainly used for fixing the shaft sleeve 12 on the positioning mandrel 3. The positioning device comprises a first gasket 4 and a first nut 5, wherein the first gasket 4 is sleeved on the free end of the positioning mandrel 3 and used for abutting against a shaft sleeve 12, the first nut 5 is sleeved on the free end of the positioning mandrel 3 and located outside the gasket, and the first nut 10 is in threaded connection with a threaded column of the positioning mandrel 3 so as to fix the shaft sleeve 12 on the positioning mandrel 3. The locking mode can realize quick detachment and fixation of the shaft sleeve 12, and can effectively improve the processing efficiency.

The drill plate 7 assembly comprises a drill plate 7 and a drill bushing 8, wherein the drill plate 7 is arranged at the side of the positioning mandrel 3, the drill bushing 8 is arranged on the drill plate 7, and the drill bushing 8 is arranged towards a predetermined position of the positioning mandrel 3, for example towards the axial center of the positioning mandrel 3.

Preferably, the drill plate 7 is fixed to the top end of the column 2 and is located directly above the positioning mandrel 3. When the drilling machine works, a cutter passes through the drill bushing 8 from the upper part and then contacts with the shaft bushing 12 for feeding, and drilling processing is gradually completed. In one example, the drill plate 7 is secured to the top end of the upright 2 by 3 socket head cap screws. When fixed, can adopt two cylindric locks to fix a position.

Preferably, the diameter of the first spacer 4 is set to abut on the end face of the sleeve 12, and the diameter of the first nut 5 is smaller than the diameter of the sleeve 12, so that the sleeve 12 is fixed on the positioning mandrel 3 by pushing the first spacer 4 through the first nut 5. This size does not affect the quick installation and removal of sleeve 12.

Preferably, a space is reserved on the positioning mandrel 3 corresponding to the drilling position of the shaft sleeve 12, the space can contain part of cutting waste materials, and the waste materials can be prevented from influencing the drilling processing. In one example, the positioning mandrel 3 may be provided with the above-described space from the portion corresponding to the drilling position of the sleeve 12 to the free end.

Preferably, the surface of collar 6 that contacts sleeve 12 is chamfered to match the internal chamfer of sleeve 12. During clamping, the matching degree of the shaft sleeve 12 and the positioning mandrel 3 can be further improved through the abutting fit of the inner chamfer on the convex ring 6 and the inner chamfer on the shaft sleeve 12, and further the machining precision is improved.

Preferably, the upright column 2 is provided with an installation through hole, the positioning mandrel 3 is arranged in the installation through hole in a penetrating mode, one side of the positioning mandrel 3 abuts against the outside of one end of the installation through hole through the convex ring 6, and the other side of the positioning mandrel is fixedly arranged at the other end of the installation through hole through the fixing device. In one example, the part of the positioning mandrel 3 connected with the fixing device is a threaded column, the fixing device comprises a second gasket 9 and a second nut 10, the second gasket 9 is sleeved on the positioning mandrel 3, and the positioning mandrel 3 can be fixed on the upright column 2 through the threaded connection of the second nut 10 and the threaded column of the positioning mandrel 3. In one example, a key 11 is installed between the positioning spindle 3 and the mounting through hole to prevent rotation of the positioning spindle 3 relative to the mounting through hole, and to improve machining accuracy, the key 11 may be a flat key.

The working mode of the shaft sleeve type drilling clamp is as follows: fixing the positioning mandrel 3 on the upright post 2, then entering the shaft sleeve 12 from the free end of the positioning mandrel 3 to enable the inner chamfer of the shaft sleeve 12 to be in contact matching with the chamfer on the convex ring 6, then fixing the shaft sleeve 12 on the positioning mandrel 3 through the locking assembly, finally enabling the cutter to enter from the drill bushing 8 and to be in contact with the shaft sleeve 12 for cutting, and gradually completing drilling processing. After the completion, the locking assembly is taken down, the shaft sleeve 12 is taken down, and the next shaft sleeve 12 is installed according to the method for repeated processing.

This axle sleeve class boring grab is used on ordinary lathe, fixes a position through location mandrel 3 and axle sleeve 12, fixes axle sleeve 12 on location mandrel 3 fast through locking Assembly again, drills to axle sleeve 12 through directional drill bushing 8 at last, can the effectual efficiency and the quality that improves axle sleeve 12 class drilling.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a shaft sleeve class boring grab, its characterized in that, anchor clamps include:

a base (1);

a column (2) arranged on the base (1);

one end of the positioning mandrel (3) is fixedly arranged on the upright post (2), the free end of the positioning mandrel (3) is a threaded post, and the outer circle of the positioning mandrel (3) is matched with the surface of an inner hole of the shaft sleeve (12);

a locking assembly, comprising:

the first gasket (4) is sleeved on the free end of the positioning mandrel (3) and is used for abutting against the shaft sleeve (12);

the first nut (5) is sleeved on the free end of the positioning mandrel (3) and is positioned outside the gasket, and the first nut (5) is in threaded connection with the threaded column of the positioning mandrel (3) so as to fix the shaft sleeve (12) on the positioning mandrel (3);

drill plate (7) assembly comprising:

a drill plate (7) arranged on the side of the positioning mandrel (3);

a drill bushing (8) which is provided on the drill plate (7), and the drill bushing (8) is oriented towards a predetermined position of the positioning mandrel (3).

2. Bushing-like drilling clamp according to claim 1, characterized in that the positioning mandrel (3) has its middle portion formed with a collar (6) projecting in its radial direction, said collar (6) being adapted to block the movement of the bushing (12).

3. Shaft sleeve type drilling clamp according to claim 2, characterized in that the surface of the protruding ring (6) contacting the shaft sleeve (12) is provided with a chamfer matching the inner chamfer on the shaft sleeve (12).

4. The shaft sleeve type drilling clamp according to claim 2, wherein a mounting through hole is formed in the upright post (2), the positioning mandrel (3) is arranged in the mounting through hole in a penetrating manner, one side of the positioning mandrel (3) abuts against the outside of one end of the mounting through hole through the convex ring (6), and the other side of the positioning mandrel is fixedly arranged at the other end of the mounting through hole through a fixing device.

5. The shaft sleeve type drilling clamp as claimed in claim 4, wherein the connecting part of the positioning mandrel (3) and the fixing device is a threaded column, the fixing device comprises a second gasket (9) and a second nut (10), the second gasket (9) is sleeved on the positioning mandrel (3), and the second nut (10) is in threaded connection with the threaded column of the positioning mandrel (3).

6. Bushing-like boring clamp according to claim 4, characterized in that a key (11) is mounted between the positioning mandrel (3) and the mounting through hole to prevent rotation of the positioning mandrel (3) relative to the mounting through hole.

7. Shaft sleeve type drilling clamp according to claim 1, characterized in that the drilling plate (7) is fixed at the top end of the upright (2) and is located right above the positioning mandrel (3).

8. Bushing-like drilling clamp according to claim 1, characterized in that the diameter of the washer is arranged to be able to abut against the end face of the bushing (12).

9. A bushing-like boring grab according to claim 1, characterized in that a space is reserved on the positioning mandrel (3) in correspondence with the boring position of the bushing (12).