CN208215103U

CN208215103U - A kind of adaptive collet of thin-wall part inner hole accurate grinding

Info

Publication number: CN208215103U
Application number: CN201820555601.2U
Authority: CN
Inventors: 刘春青; 魏文武; 宋永伟; 姜燕; 杨强强
Original assignee: Xian Flight Automatic Control Research Institute of AVIC
Current assignee: Xian Flight Automatic Control Research Institute of AVIC
Priority date: 2018-04-18
Filing date: 2018-04-18
Publication date: 2018-12-11
Anticipated expiration: 2028-04-18

Abstract

The utility model belongs to technical field of mechanical processing, disclose a kind of adaptive collet of thin-wall part inner hole accurate grinding, including connector sleeve (1), clamp the conical surface (2), clamping head (3), the utility model devises a kind of thin-wall part inner hole accurate grinding and replaces conventional clip with adaptive collet, both it can guarantee that clamping was reliable, part will not be pressed from both sides and be deformed again, especially suitable for thin-wall part；Irregular for External Shape can be adjusted adaptively, and External Shape error is avoided to duplicate to inner hole；For the small burr of External Shape, this collet interior can carry out micro-deformation, to reach Clamp blocks, avoid the purpose of part play in grinding process, realize that semi-finished product thin-wall part is accurate, reliable clamping.

Description

A kind of adaptive collet of thin-wall part inner hole accurate grinding

Technical field

The utility model belongs to product processing technique field, in particular to a kind of thin-wall part inner hole accurate grinding is with adaptively Collet.

Background technique

In the accurate inner hole grinding processing of semi-finished product thin-wall part, usually there is higher want to inner hole bounce and cylindricity It asks.Conventional clip is primarily present following problems when clamping this kind of thin-wall part:

1 since part belongs to thin-wall part, should guarantee that parts fixation is reliable, and cannot press from both sides part and deform, conventional clip Clamping force is difficult to control；

2 conventional clip materials are stainless steel, and irregular for External Shape cannot be adjusted adaptively, to cause part Configuration error is duplicated to inner hole；

3 use conventional clip, and the small burr of External Shape easily has an impact clamping force, cause part in grinding process Middle play, there are quality and safety hidden danger.

Summary of the invention

The purpose of this utility model: semi-finished product thin-wall part accurate inner hole grinding processing there are aiming at the problem that, devise A kind of thin-wall part inner hole accurate grinding replaces conventional clip with adaptive collet, realize semi-finished product thin-wall part precisely, it is reliable Clamping.

The technical solution of the utility model is: a kind of thin-wall part inner hole accurate grinding adaptive collet, including connector sleeve 1, the conical surface 2, clamping head 3 are clamped；1 end of connector sleeve is equipped with screw thread, clamps 2 left end of the conical surface and is connected with connector sleeve 1, right end and clamping First 3 are connected, and clamp the conical surface 2 and clamping head 3 is opened there are three 120 ° each other of retraction slot, clamping head 3 is equipped with inner hole, and bottom hole is equipped with Escape.

The clamping conical surface 2 is 15 ° of conical surfaces.

The adaptive collet material is aluminium alloy.

The advantages of the utility model and the utility model has the advantages that the utility model devise a kind of thin-wall part inner hole accurate grinding use from It adapts to collet and replaces conventional clip, not only can guarantee that clamping was reliable, but also part will not be pressed from both sides and be deformed, especially suitable for thin-wall part；It is right Irregular in External Shape can be adjusted adaptively, and External Shape error is avoided to duplicate to inner hole；For the small of External Shape Burr, this collet interior can carry out micro-deformation, to reach Clamp blocks, avoid the mesh of part play in grinding process , realize that semi-finished product thin-wall part is accurate, reliable clamping.

Detailed description of the invention

Fig. 1: the utility model collet schematic diagram；

Fig. 2: the utility model collet cross-sectional view；

Fig. 3: the utility model collet can generally apply thin-walled parts cross-sectional view；

Fig. 4: the utility model collet application drawing；

Fig. 5: the hydraulic valve liner cross-sectional view of certain type.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings of the specification, please refers to Figure of description 1-5.

As shown in Figs 1-4, the adaptive collet of a kind of thin-wall part inner hole accurate grinding, including connector sleeve 1, clamp the conical surface 2, Clamping head 3.1 end of connector sleeve is equipped with screw thread, and to connecting machine tool thread, clamping the conical surface 2 is 15 ° of conical surfaces, left end and company Female connector 1 is connected, and right end is connected with clamping head 3, clamps the conical surface 2 and clamping head 3 is opened there are three 120 ° each other of retraction slot, clamp First 3 are equipped with inner hole, and to holding parts, bottom hole is equipped with escape.

Part is put into the hole of clamping head 3 when use, and lathe thread passes through the screw thread strain clamp of 1 end of connector sleeve Head, clamps the conical surface 2 and lathe taper hole is sturdy, thus Clamp blocks.

Embodiment

As shown in figure 5, the present embodiment, by taking the inner hole grinding of the hydraulic valve liner of certain type as an example, which is typical thin wall Part, and it is more demanding to inner hole precision,It is 0.002 that inner hole, which requires cylindricity, and beating is 0.0025,It is 0.002 that inner hole, which requires cylindricity, and beating is 0.01, therefore proposes high requirement to inner hole grinding and clamping.

Designing 3 aperture of clamping head according to hydraulic valve excircle of bushing diameter of phi 26.7 is Φ 27, by hydraulic valve liner when use It is put into the hole of clamping head 3, lathe thread tenses collet by the screw thread of 1 end of connector sleeve, clamps the conical surface 2 and lathe is bored Hole is sturdy, thus Clamp blocks.

The utility model cooperates suitable equipment to can be realized the processing of thin wall component high precision inner-pore, simple and efficient.

The above description is only the embodiments of the present invention, but the protection scope of the utility model is not limited to This, the improvement of any pair of the utility model unsubstantiality should be all within the protection scope of the utility model.

Claims

1. a kind of adaptive collet of thin-wall part inner hole accurate grinding, which is characterized in that including connector sleeve (1), clamp the conical surface (2), clamping head (3)；Connector sleeve (1) end is equipped with screw thread, clamps the conical surface (2) left end and is connected with connector sleeve (1), right end and clamping Head (3) is connected, and clamps the conical surface (2) and clamping head (3) is opened there are three 120 ° each other of retraction slot, and clamping head (3) is equipped with inner hole, Bottom hole is equipped with escape.

2. adaptive collet according to claim 1, it is characterised in that: the clamping conical surface (2) is 15 ° of conical surfaces.

3. adaptive collet according to claim 1, it is characterised in that: the adaptive collet material is aluminium alloy.