CN2481436Y

CN2481436Y - Expansion location clamp for working three-pin supporter

Info

Publication number: CN2481436Y
Application number: CN 01225845
Authority: CN
Inventors: 陈信爱; 袁国庆
Original assignee: Wanxiang Qianchao Co Ltd
Current assignee: Wanxiang Qianchao Co Ltd
Priority date: 2001-05-29
Filing date: 2001-05-29
Publication date: 2002-03-13
Anticipated expiration: 2011-05-29

Abstract

A clamp for machining asymmetric parts, particularly for turning three-pin supporter end face is characterized in that: the clamp comprises a clamp body capable of being fastened on a machine tool through the side wall of certain taper, a pin stop and a bolt provided with a conical segment, wherein the pin stop and the bolt are arranged at the big diameter end of the clamp body, wherein the bolt is positioned at the center of the clamp body; meanwhile, the clamp body is provided with a convex column at the position of the conical segment of the bolt, the center of the column is provided with a conical hole; moreover, a set of radial through grooves are arranged between the wall of the conical hole and the external wall of the convex column. The utility model is characterized in convenient use, time and labor saving, guarantee of processing quality, a simple structure, fewer parts and convenient manufacture ,etc.

Description

The tensioner positioning fixture that the processing spider is used

The utility model relates to a kind of anchor clamps that are used for the asymmetric part of machined, especially a kind of required tensioner positioning fixture of spider end face that is used for turning car universal joint.

At present because of lacking a kind of anchor clamps that spider can be fastened on the lathe, so turning spider end face is just relatively more difficult, not only time-consuming but also require great effort.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of tensioner positioning fixture that spider is used of processing is provided, so that it has quality to the spider facing is good, easy to use and save time and laborsaving, with and characteristics such as simple and reasonable, easily manufactured.

The tensioner positioning fixture that the utility model processing spider is used, be characterized in: it contains the sidewall of an energy by its band tapering and is fastened to the bolt that clamp body on the lathe, alignment pin, have conical section on it, alignment pin and bolt are installed in the larger diameter end of clamp body, wherein bolt is positioned at the center of clamp body, and clamp body is convex cylindrical outside place, bolt conical section place has, the center of being somebody's turn to do outer convex cylindrical has round taper hole, and conical hole wall is to being provided with one group of radially groove between the evagination cylindrical outer wall.

When using the utility model anchor clamps, earlier the outer conical surface of clamp body is fastened to machine tool chief axis circular cone endoporus or conical transition puts, the endoporus with spider is inserted in the evagination cylinder again, and a sidewall that makes spider is near alignment pin; Rotating bolt then, at this moment because of outer convex cylindrical is provided with radially groove, so the conical section on the bolt can make the sidewall of outer convex cylindrical outwards expand, being solidified as a whole until the endoporus of tensioner spider, with spider gets final product.

The utility model has the advantages that: 1) the utility model anchor clamps can make asymmetric spider be fastened on the lathe spindle, realize the turning to its end face, and easy to use, save time, laborsaving; 2) it can with lathe near being integral, so the reliable in quality of turning spider end face; 3) the tensioner positioning fixture used of the utility model processing spider is simple and reasonable, and because of its part is few, so easily manufactured, with low cost.

To and contrast accompanying drawing by embodiment below, the utility model will be further described below.Accompanying drawing thes contents are as follows:

Fig. 1 is the front view of the tensioner positioning fixture band broken section used of the utility model processing spider;

Fig. 2 is the A-A cutaway view among Fig. 1.

Label declaration among the figure is as follows: the 1-clamp body; The 2-alignment pin; The 3-bolt; The 3a-conical section; The 3b-inner hexagonal hole; The outer convex cylindrical of 4-; The 4a-round taper hole; 4b-is groove radially; β-clamp body sidewall with tapering; The tapering of the conical section 3a of γ-bolt.

See the structure of the tensioner positioning fixture that the utility model processing spider is used from Fig. 1 and Fig. 2, it contains its sidewall can be the bolt 3 of the conical section 3a of γ with the clamp body 1 of the fastening one of tapering β, alignment pin 2, a band tapering with lathe head of a bed main shaft; Alignment pin and bolt are installed in the larger diameter end of clamp body, wherein alignment pin is by being threaded on the anchor clamps that it has, and bolt is positioned at the center of clamp body, and clamp body is convex cylindrical 4 outside the place, conical section 3a place of bolt has, the center of being somebody's turn to do outer convex cylindrical has round taper hole 4a, and this hole inwall is to being provided with radially groove 4b between the evagination cylindrical outer wall.Radially the quantity of groove can be three to four, is taken as four in the present embodiment.

When using the utility model anchor clamps, earlier clamp body 1 is fastened on machine tool chief axis endoporus or the taper sheath, simultaneously the endoporus of spider is inserted in the outer wall of evagination cylinder, and a sidewall that makes spider is near alignment pin; Then by the inner hexagonal hole 3b rotating bolt 3 that bolt head had, make that conical section 3a on the bolt moves right, the sidewall of outer convex cylindrical is outwards expanded, until the endoporus of tensioner spider, be tightened to one with clamp body.At this moment can carry out the turning of end face.In Fig. 1 and Fig. 2, represent spider with double dot dash line.

Claims

1, a kind ofly process the tensioner positioning fixture that spider is used, it is characterized in that: it contains the sidewall of an energy by its band tapering and is fastened to clamp body (1) on the lathe, an alignment pin (2), a bolt (3) that has conical section (3a) on it, alignment pin and bolt are installed in the larger diameter end of clamp body, wherein bolt is positioned at the center of clamp body, and clamp body is convex cylindrical (4) outside the place, conical section place of bolt has, the center of being somebody's turn to do outer convex cylindrical has round taper hole (4a), and conical hole wall is to being provided with one group of radially groove (4b) between the evagination cylindrical outer wall.