CN216939498U

CN216939498U - Circumferential hole drilling, clamping and positioning tool

Info

Publication number: CN216939498U
Application number: CN202123245495.9U
Authority: CN
Inventors: 王芳; 刘心藜; 张晶晶; 王会龙; 刘珍妮; 冯卫; 雷文芳; 王雪莲; 周佳琦; 郑绍华
Original assignee: Beijing North Vehicle Group Corp
Current assignee: Beijing North Vehicle Group Corp
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-12
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a circumferential hole drilling, clamping and positioning tool which comprises a V-shaped base, a bottom plate, a pin, a positioning block, a pin shaft, a nut, a cover plate, an upright post, a stud, a locking nut and a spring washer. The utility model has simple structure and convenient combination, and can realize the quick clamping and dismounting of parts. The positioning block at the end part of the tool can realize quick axial positioning, and a jackscrew hole is processed when the positioning pin is removed; after the positioning pin is installed, the positioning pin and the jackscrew hole are matched to realize circumferential positioning of the part, and the cover plate can be quickly compressed and loosened to realize quick clamping and dismounting of the part. The clamping and positioning tool can solve the problem of rapid processing of circumferential holes of shaft parts, can meet the processing requirements of hole systems in batch production, and improves the processing efficiency.

Description

Circumferential hole drilling, clamping and positioning tool

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a clamping and positioning tool suitable for machining a circumferential hole of a wheel shaft part.

Background

When the numerical control vertical drilling machine drills the circumferential hole of the wheel shaft part, the size tolerance of the distance between the jackscrew hole for positioning the wheel shaft part and the end face is +/-0.05 mm, the central line of the jackscrew hole and the central line of the oil channel hole are on the same plane and pass through the rotation center of the wheel shaft, and the structure of the part is shown in figure 1. In order to process the circumferential hole of the wheel shaft part, the part needs to be scribed in advance, and then processing is carried out according to the scribing position, so that the processing efficiency is low, and the quality consistency is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a circumferential hole drilling, clamping and positioning tool, which aims to solve the technical problems of low machining efficiency and poor quality consistency of circumferential holes of wheel shaft parts.

(II) technical scheme

In order to solve the technical problem, the utility model provides a circumferential hole drilling, clamping and positioning tool, which comprises a V-shaped base, a bottom plate, a pin, a positioning block, a pin shaft, a nut, a cover plate, an upright post, a stud, a locking nut and a spring washer; wherein the content of the first and second substances,

v type base processing has the V type groove that runs through along base length direction, and V type bottom of the groove portion has the square groove structure, and V type groove both sides processing has relative first pinhole and the second pinhole that sets up.

The V-shaped base is fixed on a machine tool workbench through a pressing plate after being aligned, the bottom plate is arranged in a square groove of the V-shaped base, and the first fastening screw penetrates through a counter bore on the bottom plate and a threaded hole in the V-shaped groove to fixedly connect the bottom plate with the V-shaped base; the pin is inserted into a positioning pin hole of the bottom plate and is used for being inserted into a processed jackscrew hole on the wheel shaft part;

the second fastening screw penetrates through the side through hole of the positioning block and the side threaded hole of the bottom plate to fixedly connect the positioning block with the bottom plate;

the pin shaft penetrates through a first pin hole in the V-shaped base, and the two nuts are screwed into threads at two ends of the first pin hole to axially limit the pin shaft; the fixed end of the cover plate is hinged with the V-shaped base through a pin shaft, and the cover plate can be turned over through the pin shaft;

the upright post is of an inverted T-shaped structure, a through threaded hole is processed in the horizontal part of the bottom end, and an external thread is processed in the vertical part; one end of the stud is provided with a thread, and the other end of the stud is provided with a light column; the bottom end threaded hole of the upright column is communicated with a second pin hole in the V-shaped base, two studs are respectively installed from two ends of the second pin hole, the threaded ends of the studs are screwed into the bottom end threaded holes of the upright column, the upright column is hinged with the V-shaped base through the studs, and the upright column can rotate along the common axis of the light columns of the two studs; the vertical part of the stand column can be inserted into the through hole positioned at the rotating end of the cover plate, the locking nut is connected with the vertical part of the stand column through threads, and a spring washer is arranged between the locking nut and the rotating end of the cover plate.

(III) advantageous effects

Drawings

FIG. 1 is a schematic view of the construction of the axle components;

fig. 2a is a front view, fig. 2b is a side view, and fig. 2c is a top view of the circumferential hole drilling, clamping and positioning tool in the embodiment of the present invention.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The embodiment provides a circumferential hole drilling, clamping and positioning tool, the structure of which is shown in fig. 2, and the tool mainly comprises a V-shaped base 1, a bottom plate 10, a pin 7, a positioning block 8, a pin shaft 11, a nut 12, a cover plate 2, an upright post 3, a stud 13, a lock nut 4 and a spring washer 5.

V type base 1 processing has the V type groove that runs through along base length direction, and V type inslot portion has the square groove structure, and V type groove both sides processing has relative first pinhole and the second pinhole that sets up.

The V-shaped base 1 is fixed on a machine tool workbench through a pressing plate after being aligned, the bottom plate 10 is arranged in a square groove of the V-shaped base 1, and the first fastening screw 6 penetrates through a counter bore in the bottom plate 10 and a threaded hole in the V-shaped groove to fixedly connect the bottom plate 10 with the V-shaped base 1. The pin 7 is inserted into a positioning pin hole of the bottom plate 10 and is used for inserting a machined jackscrew hole on the wheel shaft part.

The second fastening screw 9 penetrates through the side through hole of the positioning block 8 and the side threaded hole of the bottom plate 10 to fixedly connect the positioning block 8 and the bottom plate 10.

The pin shaft 11 penetrates through a first pin hole in the V-shaped base 1, and the two nuts 12 are screwed into threads at two ends of the first pin hole to axially limit the pin shaft 11. The fixed end of the cover plate 2 is hinged with the V-shaped base 1 through a pin shaft 11, and the cover plate 2 can be turned over through the pin shaft 11.

The stand 3 adopts the type of falling T structure, and bottom horizontal part processing has the through thread hole, and vertical portion processing has the external screw thread. One end of the stud 13 is provided with a thread, and the other end is provided with a light column. The bottom end threaded hole of the upright column 3 is communicated with a second pin hole in the V-shaped base 1, the two studs 13 are respectively arranged at two ends of the second pin hole, the threaded ends of the studs 13 are screwed into the bottom end threaded hole of the upright column 3, the upright column 3 is hinged with the V-shaped base 1 through the studs 13, and the upright column 3 can rotate along the common axis of the light columns of the two studs 13. The vertical portion of the post 3 can be inserted into the through hole at the rotational end of the cover plate 2, the lock nut 4 is in threaded connection with the vertical portion of the post 3, and a spring washer 5 is provided between the lock nut 4 and the rotational end of the cover plate 2.

When the circumferential hole drilling of the wheel shaft part is carried out, the wheel shaft is placed into a V-shaped groove of a V-shaped base 1, the end face of a machining reference is close to the end face of a positioning block 8, a cover plate 2 and an upright post 3 are turned over, the upright post 3 is inserted into a through hole at the rotating end of the cover plate 2, a spring washer 5 and a locking nut 4 are arranged on the upright post 3, the locking nut 4 is screwed tightly to press the wheel shaft, and a jackscrew hole is drilled in the wheel shaft; loosening the locking nut 4, lifting the cover plate 2, inserting the pin 7 into the positioning pin hole of the bottom plate 10, loading the wheel shaft to enable the reference end surface to be close to the end surface of the positioning block 8, ensuring that the pin 7 is inserted into the jackscrew hole processed in the previous procedure, realizing the positioning of the wheel shaft, turning the cover plate 2 and the upright post 3, loading the spring washer 5 and the locking nut 4 on the upright post 3, screwing the locking nut 4 to compress the wheel shaft, and processing other circumferential holes.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.

Claims

1. A circumferential hole drilling, clamping and positioning tool is characterized by comprising a V-shaped base, a bottom plate, a pin, a positioning block, a pin shaft, a nut, a cover plate, an upright post, a stud, a locking nut and a spring washer; wherein the content of the first and second substances,

the V-shaped base is provided with a V-shaped groove which penetrates along the length direction of the base, the bottom of the V-shaped groove is provided with a square groove structure, a first pin hole and a second pin hole which are oppositely arranged are arranged on two sides of the V-shaped groove,

the V-shaped base is fixed on a machine tool workbench through a pressing plate after being aligned, the bottom plate is arranged in a square groove of the V-shaped base, and a first fastening screw penetrates through a counter bore in the bottom plate and a threaded hole in the V-shaped groove to fixedly connect the bottom plate with the V-shaped base; the pin is inserted into a positioning pin hole of the bottom plate and is used for being inserted into a processed jackscrew hole on the wheel shaft part;

the second fastening screw penetrates through the side through hole of the positioning block and the side threaded hole of the bottom plate to fixedly connect the positioning block and the bottom plate;

the upright post is of an inverted T-shaped structure, a through threaded hole is processed in the horizontal part of the bottom end, and an external thread is processed in the vertical part; one end of the stud is provided with a thread, and the other end of the stud is provided with a light column; the bottom end threaded hole of the upright column is communicated with a second pin hole in the V-shaped base, two studs are respectively installed from two ends of the second pin hole, the threaded ends of the studs are screwed into the bottom end threaded holes of the upright column, the upright column is hinged with the V-shaped base through the studs, and the upright column can rotate along the common axis of the light columns of the two studs; the vertical portion of stand can insert the through-hole that is located apron rotation end, and lock nut passes through threaded connection with the vertical portion of stand, is provided with spring washer between lock nut and apron rotation end.