CN210254325U

CN210254325U - Internal expanding lathe fixture

Info

Publication number: CN210254325U
Application number: CN201921260577.0U
Authority: CN
Inventors: 姜好根; 蔡娟
Original assignee: Jiangxi Hualin Jinjian Technology Co Ltd
Current assignee: Jiangxi Hualin Jinjian Technology Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-04-07
Anticipated expiration: 2029-08-06

Abstract

The utility model relates to an internal expanding lathe fixture, wherein: one end of the mandrel is fixedly connected with a lathe, the other end of the mandrel is in fit connection with the expansion sleeve, the expansion sleeve is sleeved on the mandrel and is positioned on the inner side of the expansion sleeve, the bushing is fixed at the tail end of the mandrel through a screw, the expansion sleeve is provided with 4 semi-closed long openings at two ends, and the coaxiality of an inner hole and an outer circle of the expansion sleeve is 0.005. The utility model discloses carry out institutional advancement to anchor clamps, make it press from both sides tightly to the protecgulum, can solve the not in-place problem of operative employee's clamping simultaneously, guarantee product machining size's precision simultaneously.

Description

Internal expanding lathe fixture

Technical Field

The utility model belongs to the technical field of the automobile clutch housing manufacturing technology and specifically relates to an internal expanding lathe fixture.

Background

At present, a common three-jaw chuck is used for clamping a front cover small end sleeve hole, the clamping is extremely inconvenient and the product size is easily out of tolerance due to the small diameter of the front cover small end sleeve hole, the front cover small end sleeve pipe is used for clamping, the product is often scrapped due to the clamping problem, and the machining precision is unstable.

Disclosure of Invention

The utility model aims at designing an internal expanding turning attachment compares current technique, the utility model discloses carry out institutional advancement to anchor clamps, make it press from both sides tightly to the protecgulum, can solve the problem that the operative employee clamping is not in place simultaneously, guarantee product machining size's precision simultaneously.

In order to achieve the above object, the utility model adopts the following technical scheme:

an internal expanding lathe fixture comprises a mandrel, an expanding sleeve and a lining; wherein: one end of the mandrel is fixedly connected with the lathe, the other end of the mandrel is connected with the expansion sleeve in a matching mode, the expansion sleeve is sleeved on the mandrel and located on the inner side of the expansion sleeve, and the bushing is fixed at the tail end of the mandrel through a screw.

An internal expanding lathe fixture, wherein: the expansion sleeve is provided with 4 semi-closed long openings at two ends, and the coaxiality of the inner hole and the outer circle of the expansion sleeve is 0.005.

Compared with the prior art, the utility model discloses carry out institutional advancement to anchor clamps, make it press from both sides tightly to the protecgulum, can solve the not-in-place problem of operative employee's clamping simultaneously, guarantee product machining size's precision simultaneously.

Drawings

Fig. 1 is an assembly view of the present invention.

Fig. 2 is a structural diagram of the mandrel of the present invention.

Fig. 3 is a structural diagram of the expanding sleeve of the present invention.

Fig. 4 is a structural diagram of the expansion sleeve of the present invention.

Fig. 5 is a structural view of the bush of the present invention.

Reference numerals: the device comprises a mandrel 1, an expansion sleeve 2, an expansion sleeve 3 and a bushing 4.

Detailed Description

The following embodiments are further described with reference to the accompanying drawings.

Embodiment 1, please refer to fig. 1 to 5, an internal expanding lathe fixture includes a mandrel 1, an expanding sleeve 2, an expanding sleeve 3, and a bushing 4; wherein: one end of the mandrel 1 is fixedly connected with a lathe, the other end of the mandrel is connected with the expansion sleeve 2 in a matching mode, the expansion sleeve 3 is sleeved on the mandrel 1 and located on the inner side of the expansion sleeve 2, and the bush 4 is fixed to the tail end of the mandrel 1 through a screw.

Embodiment 2, please refer to fig. 3, an internal expanding lathe fixture, wherein: the two ends of the expansion sleeve 2 are provided with 4 semi-closed long openings, and the coaxiality of the inner hole of the expansion sleeve and the excircle is 0.005, so that the expansion sleeve plays a role in tensioning. The rest is the same as example 1.

The working principle is as follows: when the front cover is clamped, the small end of the front cover is sleeved on the expansion sleeve 2, then the bolt is screwed, so that the expansion sleeve 3 applies force to the expansion sleeve 2, the expansion sleeve plays a role in expansion, the clamping of the front cover is finally completed, the processing is convenient, and meanwhile, the processing precision of the front cover is ensured.

Claims

1. An internal expanding lathe fixture comprises a mandrel (1), an expanding sleeve (2), an expanding sleeve (3) and a lining (4); the method is characterized in that: one end of the mandrel (1) is fixedly connected with a lathe, the other end of the mandrel is connected with the expansion sleeve (2) in a matched mode, the expansion sleeve (3) is sleeved on the mandrel (1) and located on the inner side of the expansion sleeve (2), and the lining (4) is fixed at the tail end of the mandrel (1) through a screw.

2. The internal expanding lathe fixture of claim 1, wherein: the two ends of the expansion sleeve (2) are provided with 4 semi-closed long openings, and the coaxiality of the inner hole of the expansion sleeve and the excircle is 0.005.