CN203409261U

CN203409261U - Device for positioning eccentric distance of eccentric shaft by using three-jaw chuck

Info

Publication number: CN203409261U
Application number: CN201320457356.9U
Authority: CN
Inventors: 黄新尧; 黄金波; 丁宏
Original assignee: ZHEJIANG HENGTAI TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG HENGTAI TECHNOLOGY Co Ltd
Priority date: 2013-07-29
Filing date: 2013-07-29
Publication date: 2014-01-29
Anticipated expiration: 2023-07-29

Abstract

The utility model relates to the technical field of machining techniques, and in particular relates to a device for positioning eccentric distance of an eccentric shaft by using a three-jaw chuck. The device comprises a three-jaw chuck (1) and a concentric sleeve (2), wherein an opening is formed in one side of the concentric sleeve (2); two jaws of the three-jaw chuck are used for clamping an excircle of the concentric sleeve (2); the other jaw of the three-jaw chuck (1) is opposite to one opening side of the concentric sleeve (2); the concentric sleeve (2) is concentric to a machining component (3); the radian of the inner hole of the concentric sleeve is consistent with that of the excircle of the machining component (3); the inner hole wall in the concentric sleeve (2) is inserted into the excircle of the machining component (3); the other jaw is used for clamping the excircle of the machining component (3); the distance of the center of the three-jaw chuck (1) relative to the center of the machining component is the eccentric distance. The device has the beneficial effects that the device is easy to clamp and not needed to be aligned, and the technical problems of unreliable eccentric distance of the eccentric shaft, inaccurate positioning, unfixed clamping and the like are solved.

Description

A kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw

Technical field

The utility model relates to mechanical processing technique technical field, relates in particular to a kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw.

Background technology

On the horizontal mobile mechanism of mine explosion-proof switch door, the general eccentric shaft mode that adopts moves flame-proof switch Qianmen, and wherein, the eccentric shaft on switch gate is the vital part of the normal operation of assurance mechanism.

The processes mode of eccentric shaft is varied.The method of general car eccentric work piece has five kinds: scroll chuck get on the bus eccentric work piece, chuck get on the bus eccentric work piece, two top car eccentric work pieces, eccentric chuck get on the bus eccentric work piece, at the special fixture eccentric work piece of getting on the bus.Wherein, scroll chuck get on the bus eccentric work piece with at the chuck eccentric work piece of getting on the bus, be all the processing method of relatively commonly using, but existent defect as cumbersome in: clamping, be not easy centering, easily produce error, be not suitable for batch production etc.And for the way of other car eccentric work pieces, require to use special equipment, high precision machine tool to manufacture the device of car eccentric work piece, and with precision instrument, instrument, carry out checkout gear simultaneously, be unfavorable for producing in batches.

Utility model content

The utility model overcomes above-mentioned weak point, object is to provide a kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw, adopt the scroll chuck processing eccentric shaft on engine lathe, convenient mounting and clamping, without centering, effectively solve eccentric shaft distance of shaft centers unreliable, locate inaccurate, clamp many technical problems such as insecure.

The utility model is to achieve the above object by the following technical programs: a kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw, comprising: scroll chuck, concentric locking collar; Described concentric locking collar one side is provided with opening, two pawls of scroll chuck clamp concentric locking collar cylindrical, another pawl of scroll chuck is relative with opening one side of concentric locking collar, described concentric locking collar and processing parts concentric, the endoporus radian of concentric locking collar is consistent with processing parts cylindrical radian, concentric locking collar inner hole wall and the embedding of processing parts cylindrical phase, another pawl clamps processing parts cylindrical, described scroll chuck center is eccentric throw with respect to the distance at processing parts center, and eccentric throw is identical with respect to the distance at scroll chuck center with concentric locking collar center.

As preferably, the three-jaw of described scroll chuck is parallel with the diapire of concentric locking collar, processing parts.

The beneficial effects of the utility model are: the utility model adopts the eccentric throw of scroll chuck self-centering principle location processing parts, clamping is simple, without centering, efficiently solve eccentric shaft eccentric throw unreliable, locate inaccurate, clamp many technical problems such as insecure.The utility model is simple in structure, easily manufactured, and without using special equipment, high precision machine tool to manufacture, detect this device does not need precision instrument, instrument simultaneously yet, adopts the detection means of processing on machine tool just can detect.The utility model is practical, can produce in batches, is convenient to extend in other field of machining.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that schematic diagram is used in cross-sectional view and the operation of A-A in Fig. 1;

In figure: 1, scroll chuck; 2, concentric locking collar; 3, processing parts; 4, knife rest; 5, lathe tool; 11, chuck; 12, soft pawl I; 13, soft pawl II; 14, soft pawl III.

The specific embodiment

Below in conjunction with specific embodiment, the utility model is described further, but protection domain of the present utility model is not limited in this:

Embodiment 1: as shown in Figure 1 and Figure 2, a kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw, comprising: scroll chuck 1, concentric locking collar 2; Described concentric locking collar 2 one sides are provided with opening, scroll chuck 1 comprises chuck 11, soft pawl I 12, soft pawl II 13, soft pawl III 14, soft pawl I 12, soft pawl II 13, soft pawl III 14 are arranged on chuck 11 equally spacedly, and the diapire of soft pawl I 12, soft pawl II 13, soft pawl III 14 is parallel; Soft pawl I 12 clamps concentric locking collar cylindrical with soft pawl II 13, soft pawl III 14 is relative with opening one side of concentric locking collar 2, concentric locking collar 2 and processing parts 3 concentrics, the endoporus radian of concentric locking collar 2 is consistent with the cylindrical radian of processing parts 1, the cylindrical phase embedding of the inner hole wall of concentric locking collar 1 and processing parts 3, soft pawl III 14 clamps the cylindrical of processing parts 3.

Processing parts 3 is clamped according to foregoing description, due to processing parts 3 and concentric locking collar 2 concentrics and processing parts 3 cylindricals and concentric locking collar 2 endoporus radians consistent, do not need centering, line can determine the center of processing parts 3, the center of processing parts 3 is identical with the center of concentric locking collar 2, described scroll chuck 1 center is eccentric throw with respect to the distance at processing parts 3 centers, and eccentric throw is identical with respect to the distance at scroll chuck 1 center with concentric locking collar 2 centers.After having determined eccentric throw, the 5 pairs of processing parts 3 of lathe tool that are located on knife rest 4 are processed processing, the utility model device can complete quick, convenient, accurately to the clamping of processing parts 3 and processing, clamping is simple, without centering, efficiently solve eccentric shaft eccentric throw unreliable, locate inaccurate, clamp many technical problems such as insecure.

Described in above, be specific embodiment of the utility model and the know-why used; if the change of doing according to conception of the present utility model; when its function producing does not exceed spiritual that description and accompanying drawing contain yet, must belong to protection domain of the present utility model.

Claims

1. adopt a device for scroll chuck positioning eccentric shaft eccentric throw, it is characterized in that comprising: scroll chuck (1), concentric locking collar (2), described concentric locking collar (2) one sides are provided with opening, two pawls of scroll chuck (1) clamp concentric locking collar (2) cylindrical, another pawl of scroll chuck (1) is relative with opening one side of concentric locking collar (2), described concentric locking collar (2) and processing parts (3) concentric, the endoporus radian of concentric locking collar (2) is consistent with processing parts (3) cylindrical radian, concentric locking collar (2) inner hole wall and the embedding of processing parts (3) cylindrical phase, another pawl clamps processing parts (3) cylindrical, described scroll chuck (1) center is eccentric throw with respect to the distance at processing parts (3) center, eccentric throw is identical with respect to the distance at scroll chuck (1) center with concentric locking collar (2) center.

2. a kind of device that adopts scroll chuck positioning eccentric shaft eccentric throw according to claim 1, is characterized in that, the three-jaw of described scroll chuck (1) is parallel with the diapire of concentric locking collar (2), processing parts (3).