CN202256044U

CN202256044U - Pressure tester positioning jig

Info

Publication number: CN202256044U
Application number: CN2011203953947U
Authority: CN
Inventors: 孙盛丽; 魏成双; 魏崇巍
Original assignee: Harbin Turbine Co Ltd
Current assignee: Harbin Turbine Co Ltd
Priority date: 2011-10-17
Filing date: 2011-10-17
Publication date: 2012-05-30
Anticipated expiration: 2021-10-17

Abstract

The utility model relates to a pressure tester positioning jig, which relates to a positioning jig, and solves a problem that the positioning jig in the prior art is easy to cause flyout and unsafe operation problems during repeated impact tests. The pressure tester positioning jig comprises a pedestal, a first limiting shaft, a second limiting shaft, a pressing plate and a positioning shaft, wherein the pedestal is a block with upper and lower surfaces being identical quadrilateral shapes; the positioning shaft is fixed at the centre of the pedestal; the lower parts of the first limiting shaft and the second limiting shaft are respectively fixed on two opposite lateral sides of the pedestal; the pressing plate is a quadrilateral batten; each of the two ends of the quadrilateral-batten pressing plate is individually provided with a through circular hole; the upper ends of the first limiting shaft and the second limiting shaft respectively penetrate through one circular hole of the pressing plate; and the lower surface in the middle of the pressing plate is placed on the upper end of the positioning shaft. The utility model is applicable to the field of the positioning jig.

Description

A kind of pressure testing machine positioning fixture

Technical field

The utility model relates to positioning fixture.

Background technology

Butterfly spring is parts of steam turbine unit; The section of profile is seen Fig. 4; Need on pressure testing machine, to carry out pressure test after this component processing, the stand the test rear can be used in the steam turbine portion cover, and pressure testing machine locating clip locking structure is that bolt is connected in the base, clamps with pressing plate at present; Existing positioning fixture is in reciprocal impulse test, and anchor clamps fly out, operate dangerous easily.

The utility model content

The purpose of the utility model is in order to solve existing positioning fixture in reciprocal impulse test, and anchor clamps fly out, operate unsafe problem easily, and a kind of pressure testing machine positioning fixture is provided.

A kind of pressure testing machine positioning fixture; It comprises base, a limit shaft, No. two limit shafts, pressing plate and locating shafts; Base is that upper and lower surface is identical tetragonal block, and locating shaft is fixed on the center of base, and the bottom of a limit shaft and No. two limit shafts is separately fixed on two relative sides of base; Pressing plate is the quadrilateral batten; The two ends of the pressing plate of quadrilateral batten respectively have a penetrating circular hole, and the upper end of a limit shaft, No. two limit shafts is passed a circular hole of pressing plate respectively, and the lower surface at pressing plate middle part places the upper end of locating shaft.

The utility model fixes the butterfly spring of impulse test with locating shaft, in impulse test, the situation that positioning fixture flies out can not take place.

Description of drawings

Fig. 1 is the structural representation of the utility model, and Fig. 2 is the view of embodiment one described the utility model when carrying out pressure test, Fig. 3 be the A of Fig. 2 to view, Fig. 4 is the diagrammatic cross-section of butterfly spring.

Embodiment

Embodiment one: combine Fig. 1 that this embodiment is described; This embodiment comprises base 1, a limit shaft 4-1, No. two limit shaft 4-2, pressing plate 5 and locating shafts 6; Base 1 is that upper and lower surface is identical tetragonal block, and locating shaft 6 is fixed on the center of base 1, and the bottom of a limit shaft 4-1 and No. two limit shaft 4-2 is separately fixed on two relative sides of base 1; Pressing plate 5 is the quadrilateral batten; The two ends of the pressing plate 5 of quadrilateral batten respectively have a penetrating circular hole, and the upper end of a limit shaft 4-1, No. two limit shaft 4-2 is passed a circular hole of pressing plate 5 respectively, and the lower surface at pressing plate 5 middle parts places the upper end of locating shaft 6.

When the utility model carries out pressure test,, earlier a plurality of butterfly springs 8 are installed on the locating shaft 6 like Fig. 2, Fig. 3; The structure of said butterfly spring 8 is referring to shown in Figure 4; Pressing plate 5 is installed, screw is installed in the spacing axis hole with nut again, locating shaft 6 is used for the axial location butterfly spring; The pressure testing machine tup impacts pressing plate 5, presses butterfly spring then, carries out impulse test.Base 1 connects as one with the pressure testing machine chassis.

Embodiment two: combine Fig. 1 that this embodiment is described; What this embodiment and embodiment one were different is that it also comprises a fixed block 2-1, No. two fixed block 2-2, a baffle plate 3-1 and No. two baffle plate 3-2; Fixed block 2-1 is fixed between limit shaft 4-1 and the base 1; And said limit shaft 4-1 embeds in fixed block 2-1, and No. two fixed block 2-2 are fixed between No. two limit shaft 4-2 and the base 1, and said No. two limit shaft 4-2 embed in No. two fixed block 2-2; Baffle plate 3-1 is fixed on fixed block 2-1; And cover on limit shaft 4-1, No. two baffle plate 3-2 are fixed on No. two fixed block 2-2, and cover on No. two limit shaft 4-2.Other composition is identical with embodiment one with annexation.

A limit shaft 4-1 and No. two limit shaft 4-2 are used for axial limiting.

Embodiment three: combine Fig. 1 that this embodiment is described; What this embodiment and embodiment one were different is that it also comprises a screw 7-1 and No. two screw 7-2; A screw 7-1 is fixed on the top of a limit shaft 4-1; No. two screw 7-2 are fixed on the top of No. two limit shaft 4-2, and a said screw 7-1 and No. two screw 7-2 all are positioned at the top of pressing plate 5.Other composition is identical with embodiment one with annexation.

Through a screw 7-1 and No. two screw 7-2, the stroke of spacing pressing plate 5.

Claims

1. pressure testing machine positioning fixture; It is characterized in that it comprises base (1), a limit shaft (4-1), No. two limit shafts (4-2), pressing plate (5) and locating shaft (6); Base (1) is that upper and lower surface is identical tetragonal block; Locating shaft (6) is fixed on the center of base (1); A limit shaft (4-1) is separately fixed on two relative sides of base (1) with the bottom of No. two limit shafts (4-2), and pressing plate (5) is the quadrilateral batten, and the two ends of the pressing plate of quadrilateral batten (5) respectively have a penetrating circular hole; The upper end of a limit shaft (4-1), No. two limit shafts (4-2) is passed a circular hole of pressing plate (5) respectively, and the lower surface at pressing plate (5) middle part places the upper end of locating shaft (6).

2. according to the said a kind of pressure testing machine positioning fixture of claim 1; It is characterized in that it also comprises a fixed block (2-1), No. two fixed blocks (2-2), a baffle plate (3-1) and No. two baffle plates (3-2); A fixed block (2-1) is fixed between a limit shaft (4-1) and the base (1); And a said limit shaft (4-1) embeds in the fixed block (2-1), and No. two fixed blocks (2-2) are fixed between No. two limit shafts (4-2) and the base (1), and said No. two limit shafts (4-2) embed in No. two fixed blocks (2-2); A baffle plate (3-1) is fixed on the fixed block (2-1); And cover on the limit shaft (4-1), No. two baffle plates (3-2) are fixed on No. two fixed blocks (2-2), and cover on No. two limit shafts (4-2).

3. according to the said a kind of pressure testing machine positioning fixture of claim 1; It is characterized in that it also comprises a screw (7-1) and No. two screws (7-2); A screw (7-1) is fixed on the top of a limit shaft (4-1); No. two screws (7-2) are fixed on the top of No. two limit shafts (4-2), and a said screw (7-1) and No. two screws (7-2) all are positioned at the top of pressing plate (5).