CN214292129U

CN214292129U - Hydraulic expansion gear grinding mandrel

Info

Publication number: CN214292129U
Application number: CN202120179472.3U
Authority: CN
Inventors: 赵卫强; 王春林
Original assignee: Xi'an Donglong Precision Tools Co ltd
Current assignee: Xi'an Donglong Precision Tools Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-09-28
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a hydraulic expansion gear grinding dabber, including the dabber, support cover, path briquetting, pressure regulating screw, hexagon socket head cap end holding screw, the inside oil groove for being used for storing hydraulic oil of dabber, the nested cover that supports that has of one end of dabber, the oil groove of dabber is kept away from and is supported the cover and be equipped with the pressure regulating screw that is used for adjusting the oil pressure, is provided with the path briquetting on the pressure regulating screw, the spindle still is equipped with the hexagon socket head cap end holding screw that is used for detecting the oil and fills the condition. The mandrel of the utility model can clamp small inner hole workpieces; the precision is high; in the whole clamping range, the clamping force is large, the rigidity is good, and higher clamping torque transmission can be transmitted; expensive and complicated peripheral equipment is not needed; the cost of equipment is reduced; high processing efficiency, better change flexibility and the like.

Description

Hydraulic expansion gear grinding mandrel

Technical Field

The utility model relates to a hydraulic expansion gear grinding mandrel belongs to the machining field.

Background

CNC numerical control machine tools have been widely used, but in the field of machining, the problem that part of small round hole type thin-wall parts are difficult to position and clamp in the machining process generally exists, and especially in some occasions with high requirements on the overall dimension and the form and position errors, the machining precision is difficult to guarantee. How to more efficiently utilize the CNC numerical control machine tool to process parts, the mode of processing special-shaped parts by the special-shaped tool is a better, faster and more cost-saving processing mode! The special-shaped tool is used for processing the part, and the efficiency is improved by more than 50% compared with that of the sub-process processing or manual tool processing through experimental verification.

The development of a clamp for precisely processing small-hole thin-wall type is a problem to be solved urgently. The liquid-expandable mandrel realizes the general processing of parts with different apertures in a certain size range.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic expansion gear grinding dabber to solve above-mentioned technical problem.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a hydraulic expansion gear grinding dabber, includes the dabber, supports cover, path briquetting, pressure regulating screw, hexagon socket head cap end holding screw, the inside oil groove for being used for storing hydraulic oil of dabber, the one end nestification of dabber has the support cover, the oil groove of dabber is kept away from and is supported cover one end and be equipped with the pressure regulating screw that is used for adjusting the oil pressure, is provided with the path briquetting on the pressure regulating screw, the spindle still is equipped with the hexagon socket head cap end holding screw that is used for detecting the oil and fills the condition.

Preferably, the support sleeve is used for positioning an inner hole of the part and can be quickly replaced when being positioned with the lower end face of the part.

Preferably, the thickness of the thin wall of the support sleeve is 0.6mm, and the support sleeve is used for tensioning and loosening the inner hole.

Compared with the prior art, the utility model has the advantages of it is following: the mandrel of the utility model can clamp small inner hole workpieces; the precision is high; in the whole clamping range, the clamping force is large, the rigidity is good, and higher clamping torque transmission can be transmitted; superior wear resistance strength properties; good working condition adaptability and simple and convenient operation performance; expensive and complicated peripheral equipment is not needed; the cost of equipment is reduced; high processing efficiency, better change flexibility and the like.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

In the figure: 1 mandrel, 2 supporting sleeves, 3 small-diameter pressing blocks, 4 pressure regulating screws and 5 hexagon socket flat end fastening screws.

Detailed Description

The invention is explained in further detail below with reference to the figures and the embodiments. The utility model provides a hydraulic expansion gear grinding dabber, includes dabber 1, supports cover 2, path briquetting 3, pressure regulating screw 4, hexagon socket head cap end holding screw 5, the inside oil groove for being used for storing hydraulic oil of dabber 1, the nested one end of dabber 1 has the support cover 2 that has, the oil groove of dabber 1 is kept away from and is supported 2 one end and be equipped with the pressure regulating screw 4 that is used for adjusting the oil pressure, is provided with path briquetting 3 on the pressure regulating screw 4, still be equipped with the hexagon socket head cap end holding screw 5 that is used for detecting the oil full condition on the dabber 1.

The support sleeve 2 is used for positioning an inner hole of a part and can be quickly replaced with the lower end face of the part. The thin wall thickness of the support sleeve 2 is 0.6mm, and the support sleeve is used for tensioning and loosening the inner hole. The mandrel of the utility model can clamp small inner hole workpieces; the precision is high; in the whole clamping range, the clamping force is large, the rigidity is good, and higher clamping torque transmission can be transmitted; superior wear resistance strength properties; good working condition adaptability and simple and convenient operation performance; expensive and complicated peripheral equipment is not needed; the cost of equipment is reduced; high processing efficiency, better change flexibility and the like.

The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.

Claims

1. The utility model provides a hydraulic expansion gerar grinding dabber, its characterized in that includes the dabber, supports cover, path briquetting, pressure regulating screw, hexagon socket head cap end holding screw, the inside oil groove for being used for storing hydraulic oil of dabber, the nested support cover that has of one end of dabber, the oil groove of dabber is kept away from and is supported cover one end and be equipped with the pressure regulating screw that is used for adjusting the oil pressure, is provided with the path briquetting on the pressure regulating screw, the spindle still is equipped with the hexagon socket head cap end holding screw that is used for detecting the oil and fills the condition.

2. A hydraulically expanding molar mandrel as claimed in claim 1 in which the support sleeve is adapted to locate the bore of the part and to locate the lower end surface of the part for quick change.

3. A hydraulic expansion gear grinding mandrel as claimed in claim 1, wherein the thin wall thickness of the support sleeve is 0.6mm, and is used for realizing the expansion and the release of the inner hole.