CN218311680U - Welding positioning tool for preparing resistance spot welding cross tensile sample - Google Patents
Welding positioning tool for preparing resistance spot welding cross tensile sample Download PDFInfo
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- CN218311680U CN218311680U CN202221321023.9U CN202221321023U CN218311680U CN 218311680 U CN218311680 U CN 218311680U CN 202221321023 U CN202221321023 U CN 202221321023U CN 218311680 U CN218311680 U CN 218311680U
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Abstract
The utility model relates to a welding frock technical field especially relates to a preparation resistance spot welding cross tensile sample's welding position frock, including supporting seat, positioner and push down the device, wherein positioner is fixed to be set up on the supporting seat, push down the device be located positioner directly over and with supporting seat lateral wall fixed connection. The beneficial effects are as follows: the utility model discloses a device can realize treating the automatic positioning and the clamp of welding cross sample, simple structure, and convenient operation easily realizes that welding quality is good, and welding efficiency is high.
Description
Technical Field
The utility model relates to a welding frock technical field especially relates to a preparation resistance spot welding cross tensile sample's welding position frock.
Background
Resistance spot welding is a resistance welding method in which a weldment is assembled into a lap joint and is pressed between two electrodes, and a base metal is melted by resistance heat to form a welding spot. Resistance spot welding is a widely used connection process in the automobile industry, a stamped sheet metal part is assembled to form an automobile body through resistance spot welding, thousands of welding spots are counted on one automobile, and the quality and the performance of the welding spots are very important for determining the collision resistance of an automobile structure. The static strength characteristics of the solder joint after resistance spot welding are typically evaluated by tensile shear and cross tensile tests. When a cross tensile sample used in a welding spot cross tensile test is welded, a proper tool is needed to pre-clamp the sample after the sample is overlapped according to a standard and position the welding spot, so that the welding precision and the accuracy of subsequent cross tensile test evaluation are ensured.
Chinese patent with application number CN201621144879.8 discloses a welding position frock of resistance spot welding cross tensile sample, including locating plate and cross briquetting, be equipped with the cross constant head tank that shape and solder joint cross tensile sample phase-match and degree of depth are greater than sample gross thickness on the locating plate, the tank bottom center of cross constant head tank is equipped with the lower electrode locating hole that link up, the shape and the cross constant head tank phase-match of cross briquetting press in the cross constant head tank treat welding sample on, the center of cross briquetting is equipped with the last electrode locating hole that link up. This patent suffers from the following disadvantages: in the positioning process, the butterfly bolt needs to be continuously rotated, so that the sample is tightly pressed, the operation is more complicated, and the welding efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
For overcoming the prior art defect, the utility model provides a technical problem provides a welding position frock of preparation resistance spot welding cross tensile sample, can realize treating the automatic positioning and the clamp of welding cross sample tightly, simple structure, convenient operation easily realizes that welding quality is good, and welding efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a welding positioning tool for preparing a resistance spot welding cross tensile sample comprises a supporting seat, a positioning device and a pressing device, and is characterized in that the positioning device consists of a base, a pressing plate, a cover plate, a lower electrode arm, a spring, a rubber pad and a sliding rod, wherein the base is an inverted U-shaped integrated structural member and is fixedly arranged on the supporting seat, and a cross-shaped groove is formed in the upper part of the base; the two pressing plates are respectively suspended on the base by two groups of sliding rods which are connected to the base through threads, a cover plate is connected to the upper end of each sliding rod through threads, and a spring is sleeved on each sliding rod between each cover plate and each pressing plate; the number of the rubber pads is 2, and the rubber pads are respectively adhered to the lower surface of the pressing plate; the lower electrode arm is arranged on the supporting seat below the base, and a lower electrode tip arranged at the upper end of the lower electrode arm is positioned at the central position of an electrode hole arranged at the center of the upper part of the base;
the pressing device comprises a mounting plate, a hydraulic cylinder, a connecting block, a fastener, an upper electrode arm, a pressing rod and a pipe hoop, wherein the hydraulic cylinder is fixedly connected with the side wall of the supporting seat through the mounting plate, the output end of the hydraulic cylinder is fixedly provided with the connecting block through a bolt, the upper electrode arm is fixedly connected with the connecting block through a bolt, and a lower electrode tip arranged at the lower end part of the upper electrode arm is positioned at the central position of an electrode hole arranged at the center of the upper part of the base; the pipe hoop suit is connected fixedly on last electrode arm through the fastener, and the depression bar is that 2 symmetries set up and be connected fixedly with the pipe hoop in last electrode arm both sides and its upper portion through the screw thread.
Compared with the prior art, the beneficial effects of the utility model are that:
1) The arranged pressing rod can move downwards along with the upper electrode arm in the welding process, so that the pre-compaction of the rubber pad on the first sample and the second sample is finally realized, and the stability in resistance spot welding is ensured;
2) After the resistance spot welding is finished, the spring drives the pressing plate to return to the initial state upwards along the sliding rod, the operation space is appropriate, and the cross tensile sample after the resistance spot welding is allowed to be conveniently taken out;
3) The design of the special pipe hoop facilitates the quick installation of the pipe hoop on the outer wall of the upper electrode arm, the pipe hoop can be fixed by using a fastener, and meanwhile, the installation height of the pipe hoop can be freely adjusted according to the thickness of a cross tensile sample to be spot-welded;
4) The structure is simple, the operation is simple and convenient, the realization is easy, the welding quality is good, and the welding efficiency is high.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the positioning device of the present invention;
FIG. 3 is a schematic diagram of the three-dimensional (explosion) structure of the positioning device of the present invention;
fig. 4 is a schematic perspective view of a pressing device (part) according to the present invention.
In the figure: 1-supporting seat 2-mounting plate 3-hydraulic cylinder 4-connecting block 5-base 6-pressing plate 7-cover plate 8-lower electrode arm 9-spring 10-rubber pad 11-slide bar 12-first sample 13-lower electrode tip 14-cross groove 15-second sample 16-fastener 17-upper electrode arm 18-upper electrode head 19-pressing rod 20-pipe hoop
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-4, the welding positioning tool for preparing the resistance spot welding cross tensile sample comprises a supporting seat 1, a positioning device and a pressing device, wherein the positioning device comprises a base 5, a pressing plate 6, a cover plate 7, a lower electrode arm 8, a spring 9, a rubber pad 10 and a sliding rod 11, the base 5 is an inverted U-shaped integrated structural member and is fixedly arranged on the supporting seat 1, and a cross-shaped groove 14 is formed in the upper part of the base 1; the two pressing plates 6 are respectively suspended on the base 5 through two groups of sliding rods 11 which are connected to the base 5 through threads, a certain distance is reserved between each pressing plate 6 and the upper surface of the base 5, so that a cross-shaped welding sample can be conveniently installed and taken out, the upper end parts of the sliding rods 11 are provided with cover plates 7 through threads, and springs 9 are sleeved on the sliding rods between the cover plates 7 and the pressing plates 6; the number of the rubber pads 10 is 2, and the rubber pads are respectively adhered to the lower surface of the pressing plate 6 to prevent the pressing plate 6 from damaging the sample when moving downwards and pressing the sample; the lower electrode arm 8 is arranged on the supporting seat 1 below the base 5, and a lower electrode tip 13 arranged at the upper end of the lower electrode arm is positioned at the center of an electrode hole arranged at the center of the upper part of the base 5;
the pressing device comprises a mounting plate 2, a hydraulic cylinder 3, a connecting block 4, a fastener 16, an upper electrode arm 17, a pressing rod 19 and a pipe hoop 20, wherein the hydraulic cylinder 3 is fixedly connected with the side wall of the supporting seat 1 through the mounting plate 2, the output end of the hydraulic cylinder is fixedly provided with the connecting block 4 through a bolt, the upper electrode arm 17 is fixedly connected with the connecting block 4 through a bolt, and a lower electrode tip 18 arranged at the lower end part of the upper electrode arm is positioned at the central position of an electrode hole arranged at the center of the upper part of the base 1, namely the upper electrode tip 18 is aligned with the central line of the lower electrode tip 13; the pipe hoop 20 is sleeved on the upper electrode arm 17 and is fixedly connected through a fastener 16, and the pressure rods 19 are 2 symmetrically arranged on two sides of the upper electrode arm 17, and the upper parts of the pressure rods are fixedly connected with the pipe hoop 20 through threads.
The working principle is as follows: according to the thickness of the cross tensile sample to be spot-welded, firstly, the pipe hoop 20 is hooped on the outer wall of the upper electrode arm 17 and is locked in place by the fastener 16, and then the first sample 12 and the second sample 15 are crossly stacked in the cross-shaped groove 14, so that the first sample 12 and the second sample 15 are attached to each other to facilitate resistance spot welding operation;
when the device works, the hydraulic cylinder 3 drives the upper electrode head 18 to move downwards, the pressure rod 19 gradually presses the outer wall of the top of the pressure plate 6 downwards, the pressure plate 6 overcomes the tension of the spring 9 to press the rubber pad 10 downwards on the second sample 15 to be spot-welded, and after the pressing is completed, resistance spot welding is performed between the first sample 12 to be spot-welded and the second sample 15 to be spot-welded;
after the resistance spot welding is finished, the hydraulic cylinder 3 drives the pressure rod 19 to move upwards to separate from the pressure plate 6 and return to the initial state, at the moment, the spring 9 drives the pressure plate 6 to also move upwards to separate from the second test sample 15 and return to the initial state, and then the welded cross tensile test sample is lifted from the cross-shaped groove 14 and then is taken out by inclining for a certain angle.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (1)
1. A welding positioning tool for preparing a resistance spot welding cross tensile sample comprises a supporting seat, a positioning device and a pressing device, and is characterized in that the positioning device consists of a base, a pressing plate, a cover plate, a lower electrode arm, a spring, a rubber pad and a sliding rod, wherein the base is an inverted U-shaped integrated structural member and is fixedly arranged on the supporting seat, and a cross-shaped groove is formed in the upper part of the base; the two pressing plates are respectively suspended on the base by two groups of sliding rods which are connected to the base through threads, a cover plate is connected to the upper end of each sliding rod through threads, and a spring is sleeved on each sliding rod between each cover plate and each pressing plate; the number of the rubber pads is 2, and the rubber pads are respectively adhered to the lower surface of the pressing plate; the lower electrode arm is arranged on the supporting seat below the base, and a lower electrode tip arranged at the upper end of the lower electrode arm is positioned at the center of an electrode hole arranged at the center of the upper part of the base;
the pressing device comprises a mounting plate, a hydraulic cylinder, a connecting block, a fastener, an upper electrode arm, a pressing rod and a pipe hoop, wherein the hydraulic cylinder is fixedly connected with the side wall of the supporting seat through the mounting plate, the output end of the hydraulic cylinder is fixedly provided with the connecting block through a bolt, the upper electrode arm is fixedly connected with the connecting block through a bolt, and a lower electrode tip arranged at the lower end part of the upper electrode arm is positioned at the central position of an electrode hole arranged at the center of the upper part of the base; the pipe hoop suit is connected fixedly on last electrode arm through the fastener, and the depression bar is 2 symmetry settings in last electrode arm both sides and its upper portion is connected fixedly through the screw thread and pipe hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321023.9U CN218311680U (en) | 2022-05-30 | 2022-05-30 | Welding positioning tool for preparing resistance spot welding cross tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321023.9U CN218311680U (en) | 2022-05-30 | 2022-05-30 | Welding positioning tool for preparing resistance spot welding cross tensile sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218311680U true CN218311680U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221321023.9U Active CN218311680U (en) | 2022-05-30 | 2022-05-30 | Welding positioning tool for preparing resistance spot welding cross tensile sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218311680U (en) |
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2022
- 2022-05-30 CN CN202221321023.9U patent/CN218311680U/en active Active
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