CN102069399A

CN102069399A - Clamping positioning method and device

Info

Publication number: CN102069399A
Application number: CN 201010611035
Authority: CN
Inventors: 冯守胜; 金莹; 师俊东; 张建国; 张春华
Original assignee: 沈阳黎明航空发动机(集团)有限责任公司
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-05-25

Abstract

The invention discloses a clamping positioning method, and particularly provides a clamping positioning device. The device comprises a standard component and a disc-shaped metal base, and is characterized in that a circular positioning hole is arranged at the center of a circle of the base, four bolt holes connected with a machine tool are uniformly distributed on the base, n T-shaped slots are arranged outwards along the center of the disc to a radius direction, one end of the T-shaped slot, which is close to the center of a circle, is provided with a circular groove, positioning blocks and platens which are matched are distributed on the T-shaped slots, and parts are clamped by bolt fixing.

Description

A kind of clamping localization method and device

Technical field

The invention belongs to mechanical manufacturing field, particularly a kind of clamping localization method and device of machining.

Background technology

Aviation casing processing at present generally all is to adopt rough turn, half finish turning, finish turning and bore technology such as boring and milling, complex procedures, and casing is of a great variety, diameter is different with wall thickness, cause used special tooling quantity more, majority adopted the corresponding frock clamps of procedures in the frock design in the past, and the corresponding part of frock clamp influences the reduction of enterprise's production cost and the raising of tool management efficient.

Application quick-clamping, accurate location technology are carried out the frock design, classify according to part to be processed resemble process, size proximity, make frock realize that standardization, seriation, generalization are the effective ways that improves working (machining) efficiency, can guarantee the part processing quality simultaneously.

Summary of the invention

The object of the invention is to provide a kind of clamping localization method.

For achieving the above object, the invention provides following technical scheme:

A kind of clamping and positioning device, comprise standard component and a discoidal metab, the base home position is provided with a circular central locating hole, four screws that are connected with lathe evenly distribute on the base, to radial direction n T-slot outwards is set along disc centre, T type groove is a circular groove near center of circle direction one end, arranges on the T type groove and passes through bolting during clamping parts by locating piece and the pressing plate that is complementary.

A kind of clamping localization method uses described clamping and positioning device, at first device pedestal is installed on the lathe centering; The choice criteria part guarantees that standard component size B is corresponding with part location dimension to be processed then, standard component is had alignment pin one end insert in the centre hole of base; Be that the locating piece position is determined in the center of circle again with the centre hole of base,, select locating piece quantity according to elements such as design of part to be processed, size and surpluses; Utilize fastening locating piece of connecting bolt and clamping platen at last, finish clamping, carry out part processing.

The invention has the beneficial effects as follows, can effectively reduce clamping frock quantity and centering time, shorten and produce the preparatory period, enhance productivity; Can make frock simplicity of design, convenient mounting and clamping, reduction labor strength; Low cost of manufacture, applied range.

Description of drawings

Fig. 1 is a clamping and positioning device front view of the present invention;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the part schematic diagram to be processed of the embodiment of the invention;

Fig. 4 is the standard component front view of the embodiment of the invention;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the B-B cutaway view of Fig. 1;

Fig. 7 is the A-A cutaway view of Fig. 1;

Fig. 8 is the pressing plate front view of the embodiment of the invention;

Fig. 9 is the vertical view of Fig. 8;

1. parts to be processed among the figure, 2. standard component, 3. base, 4. locating piece, 5. pressing plate, 6.T type slide block, 7. in six side's connecting bolts.

The specific embodiment

The present invention is further described below in conjunction with drawings and Examples.

Clamping and positioning device of the present invention part 1 to be processed is typical thin-walled, major diameter complex structural member, as shown in Figure 2, part easy deformation in the processing, such parts fixation must adopt multipoint positioning to guarantee accessory size.

Clamping and positioning device of the present invention, comprise standard component 2 and a discoidal metab 3, the base home position is provided with a circular central locating hole, four screws that are connected with lathe evenly distribute on it, to radial direction n T-slot outwards is set along disc centre, T type groove is a circular groove near center of circle direction one end, arranges locating piece 4 and the pressing plate 5 that is complementary on the T type groove, and is fixing by interior six side's connecting bolts 6 during clamping parts.

Use clamping and positioning device of the present invention, carry out according to the following steps:

A. clamp base 3 is installed on the lathe, (the centering scope is at 0.01mm～0.02mm) for centering;

B. according to the elements such as structure, diameter, wall thickness and surplus of part 1 to be processed, determine that locating piece 4 should select 8 or 16 points, to eliminate ovality;

C. according to part 1 sizing criteria spare 2 to be processed, guarantee standard component 2 size B corresponding with part 1 location dimension to be processed (as size φ among Fig. 2), standard component 2 is had alignment pin one end to be inserted in base 3 centre bores, with base 3 centre bores is the position that locating piece 2 is determined in the center of circle, forms the positioning spigot of part to be processed;

Part benchmark A is contacted with base 3 upper surfaces, and benchmark B forms circle with locating piece 4 and contacts, and compresses piece surface C with pressing plate 5, with interior six side's connecting bolts, 6 stationary positioned piece and pressing plates, finishes the parts fixation location, carries out part processing.

Claims

1. clamping and positioning device, comprise standard component and a discoidal metab, it is characterized in that home position is provided with a circular locating hole, four screws that are connected with lathe evenly distribute on the base, to radial direction n T-slot outwards is set along disc centre, T type groove is a circular groove near center of circle direction one end, arranges locating piece and the pressing plate that is complementary on the T type groove, and realizes parts fixation by bolting.

2. a clamping localization method uses clamping and positioning device as claimed in claim 1, at first device pedestal is installed on the lathe centering; The choice criteria part guarantees that standard component size B is corresponding with part location dimension to be processed then, standard component is had alignment pin one end insert in the centre hole of base; Be that the locating piece position is determined in the center of circle again with the centre hole of base,, select locating piece quantity according to design of part to be processed, size and surplus element; Utilize connecting bolt stationary positioned piece and clamping platen at last, finish parts fixation, carry out part processing.