CN204657795U - A kind of thin-walled ring parts positioning welding fixture - Google Patents

Abstract

The utility model relates to a positioning welding fixture for thin-walled ring parts, which belongs to the field of processing. The utility model comprises: a bottom plate, a first positioning block is arranged symmetrically on the bottom plate, a second positioning block is symmetrically arranged above the first positioning block, an arc-shaped groove is arranged on the top of the second positioning block, and an arc groove is arranged on the top of the first positioning block. A third positioning block is set at 45° to the right of the center line. The bottom plate of the utility model is equipped with a second positioning block with an arc-shaped positioning groove on the top and a first positioning block for placing the mandrel. When working, the worker only needs to put the ring parts into the arc-shaped positioning groove to fix, and the shaft parts Set on the mandrel, the assembly position of the processed parts has been positioned. For faster assembly, a third positioning block is set to fix the side plate on the "convex" shape with the ring part. The 45° direction of the ring part can be determined. Save time for workers to measure dimensions during assembly. Fixing the parts with a pressure plate and a pin can control welding deformation.

Description

A positioning welding fixture for thin-walled ring parts

technical field

The utility model relates to precise positioning welding of thin-walled ring parts, which belongs to the field of processing.

Background technique

With the development of welding technology, the economy of welding has been recognized, the trend of single-piece products is becoming more and more obvious, and the application of welded structural parts in industrial production is becoming more and more extensive. For example, hydraulic supports for coal mining and fan bases for wind turbines are all large welded structural parts. However, the common problem that is most likely to occur in welded structural parts is welding deformation. Welding deformation is caused by uneven heat during the welding process of base metal thermal expansion and post-weld cooling contraction. Controlling the welding deformation of welded structural parts has become the key to determine product quality.

Utility model content

The purpose of the utility model is to provide a positioning welding fixture for thin-walled ring parts, which solves the deformation problem of thin-walled ring parts during welding, reduces the assembly and measurement time of workers, improves processing efficiency, and ensures product welding quality.

Technical solution:

The utility model comprises: a base plate, on which a first positioning block for installing a mandrel is symmetrically arranged, and a second positioning block whose inner end surface is arc-shaped is symmetrically arranged above the first positioning block, and the top of the second positioning block is provided with For the arc groove corresponding to the arc end face, the distance between the center of the arc groove and the horizontal center of the first positioning block is 430±0.1mm.

The radius of the outer arc groove of the arc groove is 417mm, the radius of the inner arc groove is 405mm, and the depth is 50mm.

The second positioning block is provided with a pressing plate, and the pressing plate is provided with an adjustment hole.

The utility model also includes a third positioning block in a "convex" shape, the third positioning block is arranged at 45° to the right of the vertical centerline of the first positioning block, and side plates are symmetrically arranged at the lower position of the third positioning block.

The bottom plate of the utility model is equipped with a second positioning block with an arc-shaped positioning groove on the top and a first positioning block for placing the mandrel. When working, the worker only needs to put the ring parts into the arc-shaped positioning groove to fix, and the shaft parts Set on the mandrel, the assembly position of the processed parts has been positioned. For faster assembly, a third positioning block is set to fix the side plate on the "convex" shape with the ring part. The 45° direction of the ring part can be determined. Save time for workers to measure dimensions during assembly. Fixing the parts with a pressure plate and a pin can control welding deformation.

Description of drawings

Fig. 1 is the front view of the utility model processing part structure;

Fig. 2 is A-A cross-sectional view of the utility model processing part structure;

Fig. 3 is a B-direction view of the utility model processing part structure;

Fig. 4 is the A-direction view of the processing part structure of the utility model;

Fig. 5 is a structural schematic diagram of the utility model.

Detailed ways

The utility model includes: a base plate 1, on which a first positioning block 2 for installing a mandrel 5 is symmetrically arranged, and a second positioning block 3 with an arc-shaped inner end face is welded symmetrically on the outer side above the first positioning block 2, The top of the second positioning block 3 is provided with an arc-shaped groove corresponding to the arc-shaped end face, and the center of the arc-shaped groove is 430 ± 0.1 mm away from the horizontal center of the first positioning block 2. The outer arc-shaped groove of the arc-shaped groove The radius is 417mm, the radius of the inner arc-shaped groove is 405mm, and the depth is 50mm. The vertical centerline of the arc-shaped groove coincides with the vertical centerline of the mandrel 5; a The shape is a "convex" shaped third positioning block 4, and the lower position of the third positioning block is symmetrically provided with side plates 8; the second positioning block is provided with a pressing plate, and the pressing plate is provided with bolt adjustment holes.

The method of using the welding positioning fixture is as follows: firstly put the ring part 6 into the arc groove and at the same time make the end face on the part align with the end face on the fixture and press it tightly with a pressure plate; secondly set the shaft part 7 on the mandrel 5; The side plate 8 on the third positioning block 4 is fixed with the ring part, and the reinforcement is prepared for welding.

Claims (4)

1. a thin-walled ring parts positioning welding fixture, it is characterized in that, comprise: base plate, base plate is symmetrically arranged with the first locating piece installing mandrel, the second locating piece that inner face is arc is symmetrically arranged with above the first locating piece, the top of the second locating piece is provided with the deep-slotted chip breaker corresponding with curved end, and the center of circle of deep-slotted chip breaker and the horizontal centre of the first locating piece are at a distance of 430 ± 0.1mm.

2. a kind of thin-walled ring parts positioning welding fixture according to claim 1, it is characterized in that, the outer arcuate groove radius of described deep-slotted chip breaker is 417mm, and arc groove radius is 405mm, and the degree of depth is 50mm.

3. a kind of thin-walled ring parts positioning welding fixture according to claim 1, it is characterized in that, the second locating piece is provided with pressing plate, and pressing plate is provided with adjustment hole.

4. a kind of thin-walled ring parts positioning welding fixture according to claim 1, it is characterized in that, also comprise the 3rd locating piece that shape is " convex " font, the 3rd locating piece is arranged on 45 ° of places on the right side of the first locating piece vertical center line, and the 3rd locating piece low level place is symmetrically arranged with side plate.