CN219444005U - Auxiliary support tool for welding - Google Patents

Abstract

The utility model provides a supporting tool for welding assistance, which comprises a driving cylinder and a contact piece, wherein the contact piece is fixed at the tail end of a piston rod of the driving cylinder, and the section of the contact piece is larger than that of a piston rod. The auxiliary welding support tool adopts a mode that the driving cylinder is matched with the contact piece, the driving cylinder drives the piston rod to mainly provide supporting force, and the contact piece is mainly used for expanding the contact surface between the piston rod of the driving cylinder and a workpiece to be welded and also plays a certain role in contact buffering. The support tool is convenient to use, can quickly adjust the support length according to the distance between parallel workpieces, and can be reused.

Description

Auxiliary support tool for welding

Technical Field

The utility model belongs to the technical field of machining equipment, and particularly relates to a supporting tool for welding assistance.

Background

The disclosure of this background section is only intended to increase the understanding of the general background of the utility model and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.

In welding operations, it is often the case that a joint is to be welded between two parallel work pieces, such as the boom parts shown in fig. 1, and a shaft 2 is to be welded between two parallel arms 1, which is usually the case when two arms 1 are placed between two sets of stop members 3, the stop members 3 on both sides being able to prevent the arms 1 from moving outwards during the welding process. After high-temperature welding is finished, materials near a welded junction are cooled, and due to the characteristics of thermal expansion and cold contraction of the materials, arm rods 1 on two sides can be tightened to the middle in the cooling process, so that the welding effect and the welding precision are affected. To avoid this, it is common practice to weld several groups of support bars in an up-down cross manner between two parallel arm bars 1 before welding, and knock the support bars off after the work piece is thoroughly cooled after welding is completed and no cold shrinkage occurs. This method is cumbersome.

Disclosure of Invention

In order to solve the problems, the utility model provides a support tool for welding assistance, which is suitable for welding connecting pieces between parallel workpieces, is convenient to use, and can quickly adjust the support length according to the distance between the parallel workpieces.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a frock is used in welding auxiliary stay, includes actuating cylinder and contact piece, the contact piece is fixed in the terminal of actuating cylinder's piston rod to the cross-section of contact piece is greater than the cross-section of piston rod. The auxiliary welding support tool adopts a mode that the driving cylinder is matched with the contact piece, the driving cylinder drives the piston rod to mainly provide supporting force, and the contact piece is mainly used for expanding the contact surface between the piston rod of the driving cylinder and a workpiece to be welded and also plays a certain role in contact buffering. The support tool is convenient to use, can quickly adjust the support length according to the distance between parallel workpieces, and can be reused.

Further describing the technical scheme, the end face of the contact piece, which faces away from the piston rod, is provided with an anti-slip structure. Friction force between the contact piece and the workpiece to be welded is increased, and position running in the welding process is prevented.

Further describing the above technical solution, the anti-slip structure may be anti-slip patterns, such as raised lines, diamond patterns, etc., or may be roughened surfaces formed by roughening the contact marks.

Further describing the technical scheme, the driving cylinder comprises two piston rods which are independent and are respectively arranged at the left side and the right side of the driving cylinder. The piston rods on the left side and the right side are independently controlled to stretch and retract, the two ends of the piston rods can be contacted with workpieces to be welded through adjusting the stretching and retracting of the two piston rods respectively, the distance between the two workpieces to be welded on the two sides is not required to be accurately positioned when the supporting tool is placed, and the operation efficiency is improved.

Further describing the technical scheme, the supporting tool further comprises a base for supporting the driving cylinder body in the vertical direction. And the driving cylinder body is also convenient to fix.

Further describing the above technical solution, the height of the base is adjustable. The contact piece can be maximally contacted with the piece to be welded by adjusting the height of the base according to actual operation conditions.

The driving cylinder comprises a hydraulic oil cylinder or a pneumatic cylinder or an electric cylinder.

A handle is arranged on the cylinder body of the driving cylinder. When the position of the supporting tool needs to be adjusted, the lifting handle is convenient to lift and move, and portability of the supporting tool is improved.

The utility model has the beneficial effects that:

the auxiliary welding support tool adopts a mode that the driving cylinder is matched with the contact piece, the driving cylinder drives the piston rod to mainly provide supporting force, and the contact piece is mainly used for expanding the contact surface between the piston rod of the driving cylinder and a workpiece to be welded and also plays a certain role in contact buffering. The support tool is convenient to use, the support length of the support tool can be quickly adjusted according to the distance between parallel workpieces, and the support tool is very convenient to install and detach.

Drawings

FIG. 1 is a schematic illustration of a boom member welding condition as exemplified in the background;

FIG. 2 is a schematic diagram of an embodiment;

FIG. 3 is a block diagram of the hydraulic oil circuit system of the present embodiment;

wherein: the device comprises a 1-arm rod, a 2-rotating shaft, a 3-limiting part, a 4-hydraulic cylinder, a 5-first piston rod, a 6-second piston rod, a 7-contact part, 8-anti-skid threads, a 9-base, a 91-base, a 92-upper base, a 93-lower base, a 10-handle and a 11-oil storage tank.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The utility model is further illustrated below with reference to specific examples. It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The welding auxiliary support tool of the present embodiment includes a hydraulic cylinder 4, the hydraulic cylinder 4 includes two mutually independent piston rods, namely a first piston rod 5 and a second piston rod 6, the ends of the two piston rods are respectively fixed with a plate-shaped contact piece 7, and the cross section of the contact piece 7 is larger than the cross section of the first piston rod 5 and the cross section of the second piston rod 6. The end face of the contact piece 7, which is contacted with the workpiece to be welded, is provided with anti-skid patterns so as to increase the contact friction force with the workpiece to be welded.

The lower part of the cylinder body of the hydraulic cylinder 4 is provided with a base 9, the uppermost end of the base 9 is a circular arc-shaped base 91 attached to the cylinder body of the hydraulic cylinder, the hydraulic cylinder is fixed on the circular arc-shaped base 91, an upper base 92 and a lower base 93 are arranged below the base 91, the upper base 92 and the lower base 93 are sleeved and embedded, and the side walls of the upper base 92 and the lower base 93 are in sliding connection in a sliding rail and sliding chute mode and are fixed in a positioning mode through bolts 94. The sliding connection is in the prior art, and the specific structure thereof is not described herein, and the adjustment of the base height is realized through the sliding connection of the upper base 92 and the lower base 93. In other embodiments, the upper base 92 and the lower base 93 may be adjusted in height by other connection methods, such as providing a plurality of pin holes on the upper base 92 and the lower base 93 along a vertical direction, and fixing the pin holes through pin connection, or any other existing realizable method.

The lifting handle 10 is further arranged above the hydraulic cylinder body, and when the position of the supporting tool needs to be adjusted, the lifting handle is used for lifting and moving conveniently, so that the portability of the supporting tool is improved.

Fig. 3 is a hydraulic oil circuit system structure capable of realizing independent expansion and contraction of the first piston rod and the second piston rod according to the present embodiment. When the oil storage tank 11 injects hydraulic oil into the middle of the cylinder body through the oil pipe b, the oil path d is closed, if the oil path a and the oil path c are both in an open state, the oil paths a and c return oil into the oil storage tank, and the first piston rod and the second piston rod both move outwards; if one of the a or c is opened, the other is closed, the piston rod corresponding to the opened oil way moves outwards, and the other piston rod is not moved, so that the outwards movement of one piston rod is realized. When the piston rods are required to be contracted, if a, c and d are all opened, hydraulic oil enters the hydraulic cylinders from a and c and returns to the oil storage tank from b and d, the two piston rods are both contracted inwards, and if one of the piston rods is required to be contracted inwards, the a or c is closed. The opening positions of the oil passages b and d on the hydraulic cylinder body are not in the same straight line in the vertical direction, so that the contraction amplitude of the two piston rods is limited, and the collision when the two piston rods are contracted inwards is avoided.

Of course, in other embodiments, other configurations of the oil path system may be used, as long as control of the two piston rods is enabled.

The method for using the welding auxiliary support tool of this embodiment is (described with reference to fig. 1): before the welding operation starts, the tool is placed between the two arm rods 1, the height of the plate-shaped contact piece 7 is equal to the height of the side surface of the arm rods 1 by adjusting the relative positions of the upper base 92 and the lower base 93, then a control system of the hydraulic cylinder is started, the first piston rod 5 and the second piston rod 6 are close to the inner side surface of the arm rods 1, then the stretching of the two piston rods is finely adjusted by the control system, the first piston rod and the second piston rod can be respectively adjusted if necessary, finally the contact piece 7 of the two piston rods is completely abutted against the inner side surface of the arm rods 1, a supporting effect is formed on the two arm rods, and then the welding operation of the arm rods and the rotating shaft is performed. After the welding is finished, and after the temperature at the welding port is reduced to room temperature and the expansion and contraction are stable, the two piston rods are retracted through a control system of the hydraulic cylinder, and the tool is moved away.

In this embodiment, a hydraulic cylinder is described as an example, and in other embodiments, an air cylinder or an electric cylinder may be used.

It will be apparent that the foregoing is only a partial embodiment of the present utility model, and it is not intended to limit the present utility model, and it is to be understood that the present utility model may be combined and modified in various other features, and that modifications, equivalents, and equivalent arrangements or methods of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended to cover all such modifications and equivalents as fall within the scope of the present utility model.

Claims (8)

1. Welding auxiliary is with supporting frock, its characterized in that: comprising a drive cylinder and a contact piece, said contact piece being fixed at the end of the piston rod of said drive cylinder and the cross section of the contact piece being larger than the cross section of the piston rod.

2. The welding auxiliary support tool according to claim 1, wherein: the end face of the contact piece, which is away from the piston rod, is provided with an anti-slip structure.

3. The welding auxiliary support tool according to claim 2, wherein: the anti-slip structure includes anti-slip patterns.

4. The welding auxiliary support tool according to claim 1, wherein: the driving cylinder comprises two piston rods which are mutually independent and are respectively arranged at the left side and the right side of the driving cylinder.

5. The welding auxiliary support tool according to claim 1, wherein: the device also comprises a base which plays a role in supporting the driving cylinder body in the vertical direction.

6. The welding auxiliary support tool according to claim 5, wherein: the height of the base is adjustable.

7. The welding auxiliary support tool according to claim 1, wherein: the driving cylinder comprises a hydraulic oil cylinder or a pneumatic cylinder or an electric cylinder.

8. The welding auxiliary support tool according to claim 1, wherein: a handle is arranged on the cylinder body of the driving cylinder.