CN102152055A

CN102152055A - Fixture device for centering welding manufacture of square/flat sample

Info

Publication number: CN102152055A
Application number: CN2011101164325A
Authority: CN
Inventors: 秦飞; 安彤; 王旭明
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2011-05-06
Filing date: 2011-05-06
Publication date: 2011-08-17
Anticipated expiration: 2031-05-06
Also published as: CN102152055B

Abstract

The invention discloses a fixture device for the centering welding manufacture of a square/flat sample, belonging to the technical field of welding tools. The device comprises a wedge-shaped support platform, a welding base, positioning fixtures, fastening bolts, small bolts and a helical mircrometer gauge, wherein the upper surface of the welding base is provided with through longitudinal and transverse grooves, one side of the welding base is provided with a slipway groove, the helical mircrometer gauge is fixed on the slipway groove; two rows of positioning fixtures which are symmetrical along the transverse grooves are fixed on the welding base, the positioning fixtures are small blocks provided with through square grooves, the square grooves are vertical to the transverse grooves and parallel to the longitudinal grooves, the positioning fixture is fixed on the welding base through the small bolts at two ends, the centers of the positioning fixtures are provided with the fastening bolts for fastening a welding sample, the longitudinal grooves are arranged between the adjacent positioning fixtures on the welding base, and a movable end of the helical mircrometer gauge is provided with a baffle plate coming into tight contact with the sample at one side. The fixture device is simple in structure, low in weight, easy to operate, high in working efficiency and good in jointing after the welding.

Description

A kind ofly be used for jig device square or flat specimen centering welding production

Technical field

The present invention relates to a kind of square or flat specimen centering and weld novel jig, it is specially adapted to the butt welding of square metal interface, belongs to the soldering appliance technical field.

Background technology

Overlap welding is generally adopted in the welding of existing test button, and this method of attachment is stressed unreasonable, thereby the suffered tension of sample is on same axis, thus there is shear stress on the weld seam, in use may be because the too big joint fails that make of shear stress.Another kind method be adopt butt welding promptly the cross section of two samples to the welding of good back, existing method is put into a groove to two samples and is fixed, weld then, again sample is taken out after having welded, this welding method makes the commissure stressed evenly, but can not guarantee the entirely on the center of two samples, operating process is standard not too, and is bigger to the experimental result influence.These two kinds of methods all can not be accurate control sample joint between distance.

Summary of the invention

The purpose of patent of the present invention is to provide a kind of square or flat specimen centering Clamp for welding, has improved operating efficiency under the condition of guaranteeing sample centering, has improved precision, and easy and simple to handle.

Patent of the present invention is a kind of square or flat specimen centering Clamp for welding, mainly form by wedge shape saddle 1, welding base 2, positioning fixture 3, fastening bolt 4, stove bolt 5, micrometer caliper 6, the welding base upper surface is provided with the cannelure and the transverse groove of perforation, the release of excess solder when being mainly used in welding, one side of welding base is provided with slide unit groove 8, micrometer caliper is fixed on the slide unit groove 8, and micrometer caliper is fixed together with the welding base after sliding into correct position on the slide unit groove 8; On the welding base, be fixed with the positioning fixture 3 of two rows along the transverse groove symmetry, positioning fixture 3 is for having the fritter that connects square groove, the preferred cuboid of this fritter, square groove vertical transverse groove and be parallel to cannelure, positioning fixture 3 is fixed on the welding base 1 by the stove bolt 5 at two ends, positioning fixture 3 centre bits are equipped with a fastening bolt 4, be used for the fixing of welded specimen, having cannelure between the adjacent positioned jig on the welding base, the movable end of micrometer caliper is provided with a baffle plate 7, and baffle plate 7 closely contacts with a side sample, when baffle plate 7 moves, sample also and then moves together, thus the accurate distance of accurate control both sides sample joint.

During use above-mentioned welding base is placed on the wedge shape saddle 1, wedge shape saddle 1 makes welding base inclination certain angle, sample relies on the self gravitation can be adjacent with the lower face of positioning fixture 3, thereby makes the sample on both sides reach centering, and positioning fixture 3 is mainly used in the preliminary fixing of sample position; 4 pairs of samples of fastening bolt are exerted pressure, and the both sides sample is fixed on the welding base 2, and makes it keep centering, and the position of two samples can not be moved yet in the time of welding.

The present invention has the following advantages: simple in structure, in light weight, and easy operating, high efficiency, the butt joint of welding back is intact.

Description of drawings

Fig. 1 is the installation diagram of this Clamp for welding;

Fig. 2 is the side view of micrometer caliper;

Fig. 3 is the main body schematic diagram of welding base;

Fig. 4 is the main body schematic diagram of positioning fixture;

Fig. 5 is the schematic diagram of wedge shape saddle;

(1) wedge shape saddle wherein, (2) welding base, (3) weld jig, (4) stove bolt, (5) fastening bolt, (6) micrometer caliper, (7) baffle plate, (8) slide unit groove.

The specific embodiment

Mainly form by wedge shape saddle 1, welding base 2, positioning fixture 3, fastening bolt 4, stove bolt 5, micrometer caliper 6, the welding base upper surface is provided with the cannelure and the transverse groove of perforation, the release of excess solder when being mainly used in welding, one side of welding base is provided with slide unit groove 8, and slide unit groove 8 is fixed with micrometer caliper; On the welding base, be fixed with the positioning fixture 3 of two rows and transverse groove symmetry, positioning fixture 3 is for having the square fritter that connects square opening, square opening vertical transverse groove and be parallel to cannelure, positioning fixture 3 is fixed on the welding base 1 by the stove bolt 5 at two ends, positioning fixture 3 centre bits are equipped with a fastening bolt 4, be used for the fixing of welded specimen, having cannelure between the adjacent positioned jig on the welding base, the movable end of micrometer caliper 6 is connected with a baffle plate 7, baffle plate 7 and micrometer caliper movable end are fixed together, in the micrometer caliper bottom is wedge base, and this base can move freely along the chute direction in the slide unit groove 8 of welding base.

Experimental procedure: with stove bolt positioning fixture is fixed on the welding base earlier, to weld base then is placed on the wedge shape saddle, sample is inserted in the positioning fixture, sample relies on the self gravitation can be adjacent with the lower face of positioning fixture 3, this moment twist micrometer caliper after bring in accurate moving stop 7, baffle plate 7 promotes side sample mobile phase displacement together simultaneously, when sample joint distance in both sides reaches setting value, tighten fastening bolt and can fix sample, after removing wedge shape saddle and micrometer caliper, coat scaling powder at the sample interface, put lastblock scolding tin, put into reflow soldering then, backflow is soldered to certain hour, take out Clamp for welding, turn on stove bolt and fastening bolt, take out the sample that has welded, the sample that welding is good is good to moderate, the accurate 0.02mm of the thickness of scolding tin, precision is much larger than the precision of general Clamp for welding, and scolding tin is stressed evenly during tension test.

Claims

1. one kind is used for jig the device square or welding of flat specimen centering, comprise wedge shape saddle, welding base, positioning fixture, fastening bolt, stove bolt, micrometer caliper, the welding base upper surface is provided with the cannelure and the transverse groove of perforation, one side of welding base is provided with the slide unit groove, and micrometer caliper is fixed on the slide unit groove; On the welding base, be fixed with the positioning fixture of two rows along the transverse groove symmetry, positioning fixture is to have the fritter that connects square groove, square groove vertical transverse groove and be parallel to cannelure, positioning fixture is fixed on the welding base by the stove bolt at two ends, the positioning fixture centre bit is equipped with a fastening screw, is used for the fixing of welded specimen, is having cannelure between the adjacent positioned jig on the welding base, the movable end of micrometer caliper is provided with a baffle plate, and baffle plate closely contacts with a side sample.

2. according to the jig of claim 1, it is characterized in that the positioning fixture fritter is a cuboid.