CN215919397U

CN215919397U - Resistance welding tool

Info

Publication number: CN215919397U
Application number: CN202122078631.3U
Authority: CN
Inventors: 鲍勇; 张亚明; 付建林; 施炜; 张增才; 于东; 黄勇
Original assignee: Shanghai Haiye Machinery Electric Equipment Co ltd
Current assignee: Shanghai Haiye Machinery Electric Equipment Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-01
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a resistance welding tool in the technical field of welding tools, which comprises a lower electrode pressure head; the insulating positioning block is arranged on the lower electrode pressure head, a welding through groove for positioning the welding part along the width direction of the welding part is arranged on the insulating positioning block, and a limiting block for positioning the welding part along the length direction of the welding part is arranged in the welding through groove; the upper electrode pressure head is arranged above the lower electrode pressure head in a lifting manner, and a welding boss matched with the welding through groove is arranged on the upper electrode pressure head. The lower electrode pressure head is provided with the insulating positioning block, the welding part is positioned in the width direction through the welding through groove in the insulating positioning block, the end part of the welding part is positioned through the limiting block arranged on the insulating positioning block, and then the liftable upper electrode pressure head drives the welding lug boss to lift in the welding through groove, so that the welding operation of the welding part is realized.

Description

Resistance welding tool

Technical Field

The utility model relates to the technical field of welding tools, in particular to a resistance welding tool.

Background

In the resistance welding mechanical property test of each industry, the shearing force test data is an important index parameter in the mechanical property, the parameter is an important reference index in the resistance welding structure, the parameter is a more important reference value in various welding standards, and the welding speed, the welding precision and the welding reliability have great influence on the production cost and the production duration of enterprises.

In the existing welding test, corresponding identification and independent measurement are generally carried out during welding according to the drawing size, one welded piece is measured, the yield and the welding stability during welding are not high, and the stability during welding determines the average value of test data and whether mass production can be carried out.

Therefore, a stable and reliable resistance welding tool is urgently needed in the market so as to meet the requirements of laboratories and enterprises on mechanical property tests.

Disclosure of Invention

In view of this, the present invention provides a resistance welding tool to solve the technical problem of poor welding stability of the existing welding tool.

The technical scheme adopted by the utility model is as follows: the utility model provides a resistance welds welding frock, includes:

a lower electrode pressure head;

the insulating positioning block is arranged on the lower electrode pressure head, a welding through groove for positioning the welding piece along the width direction of the welding piece is formed in the insulating positioning block, and a limiting block for positioning the welding piece along the length direction of the welding piece is arranged in the welding through groove;

the upper electrode pressure head is arranged above the lower electrode pressure head in a lifting manner, and a welding boss matched with the welding through groove is arranged on the upper electrode pressure head.

Preferably, the welding parts comprise an upper welding part and a lower welding part, and the limiting block comprises an upper limiting block and a lower limiting block; the lower limiting block is arranged at the bottom of one end of the welding through groove and used for forming first stopping fit with the end part of the lower welding part; the upper limiting block is arranged at the top of the other end of the welding through groove and used for forming second stopping matching with the end part of the upper welding part.

Preferably, the welding boss is provided with an avoiding groove matched with the upper limiting block.

Preferably, the upper limiting block is detachably connected with the insulating locating block.

Preferably, the insulating positioning block is provided with an inserting groove which is vertically intersected with the welding through groove, and the upper limiting block is inserted in the inserting groove.

Preferably, the one end that lower electrode pressure head deviates from the upper electrode pressure head is equipped with the lower connecting portion that is used for being connected with the lathe, the one end that the upper electrode pressure head deviates from the lower electrode pressure head is equipped with the upper junction portion that is used for being connected with the lathe.

Preferably, the lower connecting part and the upper connecting part are both hollow structures.

Preferably, the lower connecting part is a morse cone with a large upper part and a small lower part, and the upper connecting part is a morse cone with a small upper part and a large lower part.

Preferably, the insulating positioning block is made of bakelite; the lower electrode pressure head and the upper electrode pressure head are made of beryllium, cobalt, nickel and copper.

Preferably, the insulation positioning block is detachably connected to the lower electrode pressure head.

The utility model has the beneficial effects that:

1. the lower electrode pressure head is provided with the insulating positioning block, the welding part is positioned in the width direction through the welding through groove in the insulating positioning block, the end part of the welding part is positioned through the limiting block arranged on the insulating positioning block, and then the liftable upper electrode pressure head drives the welding lug boss to lift in the welding through groove, so that the welding operation of the welding part is realized.

2. The tool can improve the welding efficiency by 60-70% and the precision reaches 0.1mm.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a diagram showing a positional relationship between an insulating positioning block and a weld assembly;

FIG. 3 is a schematic perspective view of the upper electrode ram;

FIG. 4 is a schematic view illustrating the connection between an insulation positioning block and a position limiting member;

FIG. 5 is a perspective view of an insulation positioning block;

fig. 6 is an exploded view of the present invention.

The reference numbers in the figures illustrate:

10-lower electrode indenter; 11-lower connection;

20-upper electrode indenter; 21-welding a boss; 211-avoidance slot; 22-an upper connecting part;

30-an insulating positioning block; 31-welding through grooves; 32-a plug groove;

40-a limiting block; 41-upper limit block; 42-a lower limit block;

50-welding parts; 51-upper weld; 52-lower weld.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the embodiment, as shown in fig. 1 to 5, a resistance welding tool is used for detecting welding of a shearing sample piece in welding mechanical properties, and can ensure perpendicularity of a welded workpiece when the welded workpiece is tested in a mechanical property test, so that the stress uniformity of a welding point is facilitated, and an accurate value of the tested sample piece is obtained. This frock includes:

a lower electrode ram 10;

the insulation positioning block 30 is arranged on the lower electrode pressure head 10, a welding through groove 31 is formed in the insulation positioning block 30, the welding through groove 31 is used for positioning the welding piece 50 along the width direction of the welding piece 50, a limiting block 40 is arranged in the welding through groove 31, and the limiting block 40 is used for positioning the welding piece 50 along the length direction of the welding piece 50;

the upper electrode pressure head 20 is arranged above the lower electrode pressure head 10 in a lifting manner, and the upper electrode pressure head 10 is provided with a welding boss 21 matched with the welding through groove 31.

This application is equipped with insulating locating piece 30 on lower electrode pressure head 10, leads to groove 31 through the welding on insulating locating piece 30 earlier and realizes the location of welding 50 on the width direction, and the stopper 40 of rethread setting on insulating locating piece 30 realizes the location of welding 50 tip, then drives the lift of welding boss 21 in the logical groove 31 of welding through the last electrode pressure head 20 of liftable, and then realizes the welding operation of welding 50.

In a particular embodiment, as shown in fig. 1, 2 and 4, the weldment 50 includes an upper weldment 51 and a lower weldment 52, and the stop block 40 includes an upper stop block 41 and a lower stop block 42; the lower limiting block 42 is arranged at the bottom of one end of the welding through groove 31, and the lower limiting block 42 is used for forming first stopping fit with the end part of the lower welding part 52; the upper limiting block 41 is arranged at the top of the other end of the welding through groove 31, and the upper limiting block 41 is used for forming a second stopping fit with the end of the upper welding piece 51. With the arrangement, the upper welding piece 51 and the lower welding piece 52 which are stacked are positioned in the width direction through the welding through groove 31, and the end part of the lower welding piece 52 is positioned in the length direction through the cooperation of the lower limiting block 42 and the second stop of the lower welding piece 52; the upper welding piece 51 is positioned in the length direction by the upper limit block 41 and the second stop of the upper welding piece 51.

Preferably, as shown in fig. 3, the welding boss 21 is provided with an escape groove 211 which is engaged with the upper stopper 41. By such arrangement, the interference between the welding boss 21 and the upper limiting block 41 can be reduced, and the welding boss 21 can be conveniently lifted in the welding through groove 31.

In one embodiment, as shown in fig. 4 and 5, the upper limit block 41 is detachably connected to the insulation positioning block 30.

Preferably, the insulation positioning block 30 is provided with an insertion groove 32 vertically intersecting with the welding through groove 31, and the upper limiting block 41 is inserted into the insertion groove 32. Through the inserting and connecting cooperation of the upper limiting block 41 and the inserting and connecting groove 32, the upper limiting block 41 is detachably connected with the insulating positioning block 30, so that the upper limiting block 41 can be conveniently detached and replaced, and the welding parts 50 with different thicknesses can be positioned and welded.

In a specific embodiment, as shown in fig. 1, one end of the lower electrode ram 10 facing away from the upper electrode ram 20 is provided with a lower connecting portion 11 for connecting with a machine tool, and one end of the upper electrode ram 20 facing away from the lower electrode ram 10 is provided with an upper connecting portion 22 for connecting with the machine tool; the lower connecting part 11 is a morse cone with a large upper part and a small lower part, and the upper connecting part 22 is a morse cone with a small upper part and a large lower part. So set up, both can realize going up electrode pressure head 20, lower electrode pressure head 10 and being connected with the quick dismantlement of lathe, can guarantee the fastness of connecting again, still guaranteed simultaneously connecting portion 11 and last connecting portion 22 and the leakproofness of being connected with the lathe under the effect of internal water pressure down.

Preferably, the lower connection part 11 and the upper connection part 22 have a hollow structure to secure a cooling area of the upper electrode head 20 and the lower electrode head 10.

In one embodiment, as shown in fig. 1, the insulating positioning block 30 is made of bakelite, so that the instantaneous temperature resistance of the insulating positioning block 30 reaches 300 ℃; the lower electrode pressure head 10 and the upper electrode pressure head 20 are made of beryllium, cobalt, nickel and copper, so that the conductivity of the lower electrode pressure head 10 and the upper electrode pressure head 20 is as high as 60%.

In one embodiment, as shown in FIG. 1, the insulation positioning block 30 is removably attached to the lower electrode header 10. So set up, realize insulating locating piece 30 and lower electrode pressure head 10's quick connection and dismantlement to the change of insulating locating piece 30 is convenient for, thereby realizes the location and the welding of different specification weldments 50.

Preferably, the insulation positioning block 30 is detachably coupled to the lower electrode tap 10 by means of screws.

The use process of the tool is as follows:

before welding, the lower welding part 52 is placed in the welding through groove 31 along the horizontal direction, two sides of the lower welding part 52 in the width direction are attached to two side walls of the welding through groove 31 for positioning, and then the end part of the lower welding part 52 is abutted to the lower limiting part 42; then, the upper limiting piece 41 is inserted into the insertion groove 32 of the insulating positioning block 30, and the upper limiting piece 41 is pressed on the lower welding piece 52; then, the upper welding part 51 is placed on the lower welding part 52 in the welding through groove 31 along the horizontal direction, two sides of the upper welding part 51 in the width direction are attached to two side walls of the welding through groove 31 for positioning, and then the end part of the upper welding part 51 is abutted to the upper limiting part 42; finally, the power-on welding switch is pressed down, so that the upper electrode pressure head 20 moves downwards along the vertical direction, the welding boss 21 enters the welding through groove 31 under the action of the upper electrode pressure head 20, and the upper welding piece 51 is pressed downwards, so that the upper welding piece 51 and the lower welding piece 52 are in contact power-on and are welded.

Compared with the prior art, the application has at least the following beneficial technical effects:

1. the utility model provides a frock is surveyed in the in-service use, not only has higher stability, high temperature resistance and insulating nature, has still improved its leakproofness under efficiency and the start-up water cycle high pressure to the stability of welding effect has been ensured.

2. The tool can be applied to welding of a shearing test sample piece for detecting welding mechanical property, and can ensure the verticality of the welding piece 50 when being tested in mechanical property testing, so that the stress of a welding spot is uniform, and the accurate value of the tested sample piece is obtained.

3. The tool can improve the welding efficiency by 60-70% and the precision reaches 0.1mm.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a resistance welds welding frock which characterized in that includes:

a lower electrode head (10);

the insulation positioning block (30) is arranged on the lower electrode pressure head (10), a welding through groove (31) for positioning the welding piece (50) along the width direction of the welding piece (50) is formed in the insulation positioning block (30), and a limiting block (40) for positioning the welding piece (50) along the length direction of the welding piece (50) is arranged in the welding through groove (31);

the electrode pressing head (20) is arranged above the lower electrode pressing head (10) in a liftable mode, and the welding boss (21) matched with the welding through groove (31) is arranged on the upper electrode pressing head (10).

2. An electric resistance welding tool according to claim 1, wherein the welding part (50) comprises an upper welding part (51) and a lower welding part (52), and the limiting block (40) comprises an upper limiting block (41) and a lower limiting block (42); the lower limiting block (42) is arranged at the bottom of one end of the welding through groove (31), and the lower limiting block (42) is used for forming first stopping fit with the end part of the lower welding part (52); the upper limiting block (41) is arranged at the top of the other end of the welding through groove (31), and the upper limiting block (41) is used for forming second stopping matching with the end of the upper welding piece (52).

3. A resistance welding frock according to claim 2, characterized in that, be equipped with on the welding boss (21) and go up spacing piece (41) matched with dodge groove (211).

4. A resistance welding tool according to claim 3, characterized in that the upper limiting block (41) is detachably connected with the insulating locating block (30).

5. A resistance welding tool according to claim 4, wherein an inserting groove (32) which is vertically intersected with the welding through groove (31) is formed in the insulation positioning block (30), and the upper positioning block (41) is inserted into the inserting groove (32).

6. An electric resistance welding tool according to claim 1, characterized in that the end of the lower electrode pressure head (10) facing away from the upper electrode pressure head (20) is provided with a lower connecting portion (11) for connection with a machine tool, and the end of the upper electrode pressure head (20) facing away from the lower electrode pressure head (10) is provided with an upper connecting portion (22) for connection with the machine tool.

7. A resistance welding tool according to claim 6, characterized in that the lower connecting portion (11) and the upper connecting portion (22) are both hollow structures.

8. A resistance welding tool according to claim 6, characterized in that the lower connecting part (11) is a Morse cone with a big top and a small bottom, and the upper connecting part (22) is a Morse cone with a big top and a small bottom.

9. An electric resistance welding tool according to claim 1, characterized in that the insulating positioning block (30) is made of bakelite; the lower electrode pressure head (10) and the upper electrode pressure head (20) are made of beryllium, cobalt, nickel and copper.

10. A resistance welding tooling according to claim 1, wherein the insulation positioning block (30) is detachably connected to the lower electrode head (10).