CN212470329U - Hand holds in palm support multiple spot welding frock - Google Patents
Hand holds in palm support multiple spot welding frock Download PDFInfo
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- CN212470329U CN212470329U CN202020567909.6U CN202020567909U CN212470329U CN 212470329 U CN212470329 U CN 212470329U CN 202020567909 U CN202020567909 U CN 202020567909U CN 212470329 U CN212470329 U CN 212470329U
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Abstract
The utility model provides a hand rest support multiple spot welding frock, including locating plate, upper locating piece, base and set screw, one side of locating plate is offered and is used for fixing a position the notch of big support, the outline of notch and the spot welding face phase-match of big support, the outside of notch is equipped with six location mounting holes, the locating plate passes through the location mounting hole and fixes a position and fix with upper locating piece and base respectively, install the little support on the locating plate; the upper positioning block is provided with a notch for positioning the small support, the outline of the notch is matched with the spot welding surface of the small support, the outer side of the notch is matched with the spot welding surface of the large support, the bottom surface of the upper positioning block is in contact with the upper surface of the positioning plate, six threaded holes are further formed in the outer side of the notch, and the upper positioning block is respectively positioned and fixed with the positioning plate and the base through the threaded holes; an upper electrode is arranged above the upper positioning block, a lower electrode is arranged below the positioning plate, a limiting hole is formed in the base, and three corners of the limiting hole are in tangential contact with the excircle of the lower electrode respectively.
Description
Technical Field
The utility model relates to an auto parts field, concretely relates to hand rest support multiple spot welding frock.
Background
Spot welding is a welding method in which a welding spot is formed between the contact surfaces of two overlapped workpieces by using a columnar electrode during welding. During spot welding, the workpiece is pressed to be in close contact with the workpiece, then current is switched on, the contact position of the workpiece is melted under the action of resistance heat, and a welding spot is formed after cooling.
The conventional spot welding tooling basically has three types: a, a welding tool is held by hands; b, a fixed single-point welding tool; c manipulator welding frock. The disadvantages of A and B are low efficiency, easy deviation and high labor intensity. C is large in investment and high in initial cost. Meanwhile, spot welding can be divided into single spot welding and multi-spot welding. In the production process of automobile parts, a multi-spot welding process is often used. Generally, the welding method adopted by multipoint welding is robot welding, but the investment cost is high, and the influence of welding on welding deformation is difficult to control. Most of spot welding tools in the prior art can only realize single spot welding, two spots cannot be automatically welded, and workers are manually controlled by visual estimation during welding, so that the distance between welding spots is unstable, the drawing requirements cannot be met, the rejection rate of parts is high, the production rhythm is slow, the requirement on the capacity of the workers is high, and the parts which are subjected to spot welding by three spots in a local small range are required for a large bracket and a small bracket of an automobile oil tank which are similar to small in size and light in weight.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a hand holds in palm support multiple spot welding frock to solve above-mentioned at least one kind technical problem.
The technical scheme of the utility model is that: a hand support bracket multipoint spot welding tool comprises a positioning plate, an upper positioning block, a base and a fixing screw, and is characterized in that one side of the positioning plate is provided with a notch for positioning a large bracket, the outline of the notch is matched with a spot welding surface of the large bracket, six positioning and mounting holes are formed in the outer side of the notch, the positioning plate is respectively positioned and fixed with the upper positioning block and the base through the positioning and mounting holes, and the positioning plate is provided with a small bracket;
a notch for positioning the small support is formed in the upper positioning block, the outline of the notch is matched with the spot welding surface of the small support, the outer side of the notch is matched with the spot welding surface of the large support, the bottom surface of the upper positioning block is in contact with the upper surface of the positioning plate, six threaded holes are further formed in the outer side of the notch, and the upper positioning block is respectively positioned and fixed with the positioning plate and the base through the threaded holes;
the upper positioning block is provided with an upper electrode, the lower positioning block is provided with a lower electrode, the base is provided with a triangular limiting hole, and three corners of the limiting hole are respectively in tangential contact with the excircle of the lower electrode.
The utility model discloses the frock during operation can be earlier with big, little support quick accurate positioning and push down gently with the finger and fix reliably, then realize the location and the welding of solder joint position in proper order through the spacing hole of triangle-shaped on the base and lower electrode terminal surface and excircle on the spot welder, adopt this frock can ensure that big, little support location is accurate, the position of solder joint is accurate unanimous, this frock convenient operation is laborsaving, production efficiency is high. Meanwhile, the tool is simple in structure, light and handy and low in cost, and the tool can be popularized and used in the existing manual multi-point spot welding occasions.
The base is made of a bakelite plate. The bakelite board is made by using bleached wood paper and cotton linter paper with excellent quality as reinforcements and using phenolic resin prepared by reaction of high-purity and fully-synthetic petrochemical raw materials as a resin adhesive, so that the bakelite board has the characteristics of good mechanical strength, insulation, no static electricity generation, wear resistance, high temperature resistance and the like, and the service life of the base is very long.
The number of the fixing screws is six, and the fixing screws penetrate through the positioning mounting holes and the threaded holes. Used for positioning and fixedly connecting the base, the positioning plate and the upper positioning block.
The upper electrode is a central sharp electrode with the diameter of 16mm by 60mm, one part of one side of the upper electrode is cut off to form a cutting surface, and the upper electrode is connected with an upper electrode holding rod of the spot welding machine through a taper shank.
The utility model discloses a bevel can avoid going up the electrode and taking place to interfere with the limit of bending of little support when spot welding is that point the most inboard, can ensure again that the upper electrode has sufficient intensity.
The lower electrode is a straight flat electrode with the diameter of 16mm by 60mm, and the lower electrode is connected with a holding rod of the spot welding machine through a taper shank.
The upper electrode and the lower electrode are both made of chromium zirconium copper. The electrode achieves good balance of four performance indexes of the welding electrode: the high-temperature welding electrode has the advantages of excellent conductivity, high-temperature mechanical property and wear resistance of welding quality, and higher hardness and strength, thereby ensuring that the electrode is not easy to wear, prolonging the service life, reducing the cost, ensuring that the electrode tip is not easy to deform and crush when working under certain pressure, and ensuring the welding quality.
The locating plate is a metal plate, and the upper locating block is processed by the metal plate.
Drawings
Fig. 1 is a schematic diagram illustrating a large bracket and three spot welding positions according to an embodiment of the present invention.
Fig. 2 is a schematic view of the three-dimensional assembly of the tool in the use state of the embodiment of the present invention.
Fig. 3 is a three-dimensional assembly and disassembly diagram of the tool in the use state of the embodiment of the present invention.
Fig. 4 is a schematic perspective view of the tool when no part is placed in the embodiment of the present invention.
Fig. 5 is a schematic view of the positioning of the tool when only the small bracket is placed.
Fig. 6 is a schematic view of the positioning of the tool when only the large bracket is placed in the embodiment of the present invention.
Fig. 7 is a schematic view of the positioning of the tool when the large and small supports are placed simultaneously.
Fig. 8 is a schematic view of three solder joints for positioning the base and the lower electrode according to the embodiment of the present invention.
In the figure: the welding device comprises a large support 1, a small support 2, a welding point A31, a welding point B32, a welding point C33, a positioning plate 4, an upper positioning block 5, a base 6, a fixing screw 7, a lower electrode 8, an upper electrode 9, a bent edge 21 and a chamfered surface 91.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model provides a hand rest support multiple spot welding frock mainly comprises locating plate 4, last locating piece 5, base 6, set screw 7, has matched with last electrode 9 and bottom electrode 8 in addition.
The positioning plate 4 is made of a metal plate, and the thickness of the positioning plate is the minimum size of the thickness of the two-spot welding surface drawing of the large support, so that the two spot welding surfaces are always in gapless contact when the large support 1 and the small support 2 are placed and positioned subsequently. One side of the positioning plate 4 is provided with a notch matched with the spot welding surface of the large bracket 1 in shape, and the notch is used for positioning the large bracket 1, and six holes for positioning and fixing the positioning plate with the upper positioning block 5 and the base 6 are formed in the periphery of the positioning plate.
The upper positioning block 5 is formed by processing a metal plate, the upper positioning block 5 is provided with a notch, the shape of the middle position of the notch is consistent with the shape of a spot welding surface of the small support 2, the middle position of the notch is used for positioning the small support 2, the shape of the side position of the notch is consistent with the shape of a part of a spot welding surface of the large support 1, the notch is used for facilitating the placement and positioning of the large support 1, the notch is arranged at the upper end of the positioning plate 4, the bottom surface of the upper positioning block 5 is in close contact with the upper surface of the positioning plate 4, and six threaded holes are formed in the periphery of the.
The base 6 is made of a bakelite plate, which is made of bleached wood paper and cotton linter paper with excellent quality as reinforcements and phenolic resin prepared by reaction of high-purity and fully-synthesized petrochemical raw materials as resin adhesives, so that the bakelite plate has the characteristics of good mechanical strength, insulation, no generation of static electricity, wear resistance, high temperature resistance and the like, and the service life of the base is long. A triangular hole is formed in the base 6, three corners of the triangle can be respectively in tangential contact with the excircle of the lower electrode 8, and accordingly three corresponding welding points A31, B32 and C33 are positioned, the triangular hole is mounted at the lower end of the positioning plate 4, the upper plane of the base 6 is in close contact with the lower bottom surface of the positioning plate 4, and six holes for positioning and fixing the upper positioning block 5 and the positioning plate 4 are formed in the periphery of the base.
The number of the screws 7 is 6, and the screws are used for positioning and fixedly connecting the base 6, the positioning plate 4 and the upper positioning block 5.
The upper electrode 9 is a universal central sharp electrode with the diameter of 16mm or 60mm, and one side of the upper electrode is cut off to form a cut surface 91, so that the interference between the upper electrode 9 and the bent edge 21 of the small bracket 2 when the innermost point is spot-welded can be avoided, and the sufficient strength of the upper electrode 9 can be ensured. The upper electrode 9 is connected with an electrode holding rod on the spot welding machine by a 1:10 universal taper shank.
The lower electrode 8 is a straight flat electrode with the diameter of 16mm by 60mm and is connected with a holding rod of the lower electrode of the spot welding machine by a 1:10 universal taper shank. The outer circle of diameter phi 16 may make tangential contact with each of the three corners of the triangular aperture in the base 6, thereby defining the location of each of the three weld points a31, B32, and C33.
The materials of the upper electrode and the lower electrode are chromium zirconium copper, so that the electrode achieves the good balance of four performance indexes of the welding electrode: the high-temperature welding electrode has the advantages of excellent conductivity, high-temperature mechanical property and wear resistance of welding quality, and higher hardness and strength, thereby ensuring that the electrode is not easy to wear, prolonging the service life, reducing the cost, ensuring that the electrode tip is not easy to deform and crush when working under certain pressure, and ensuring the welding quality.
When the tool works, the tool is held by the right hand, the small support 2 is held by the left hand, then the spot welding surface of the small support 2 is placed in the positioning groove hole where the upper positioning block 5 is located according to the correct direction (as shown in fig. 5), the lower bottom surface of the small support 2 is positioned by the upper plane of the positioning plate 4, and the small support 2 is fixed by lightly pressing the small support 2 by the right finger; at this time, the left hand holds the large support 1 again, the spot welding surface of the large support 1 is inserted into the positioning groove of the large support of the positioning plate 2 according to the correct direction (as shown in fig. 6), the fingers which originally press the small support 2 are released until the spot welding surface of the large support 1 is completely attached to the positioning groove of the positioning plate 4, the lower bottom surface of the large support 1 is positioned by the upper plane of the base 6, then the small support 2 is pressed by the right fingers, and the bottom surface of the spot welding surface of the small support 2 is in close contact with the spot welding surface of the large support because the thickness of the positioning plate is the minimum size of the thickness of the spot welding surface drawing of the large support 1, so that the relative welding positions of the large support 1 and the small support 2 are completely positioned and fixed through the tool (as shown in fig. Then, two hands support the tool with the large support 1 and the small support 2 and place the tool on a lower electrode 8 of a spot welding machine, the triangular hole in the tool base 6 is sleeved on a cylinder of the lower electrode 8 (as shown in fig. 8), the bottom surface of a spot welding surface of the large support 1 is propped against the upper end surface of the cylinder of the lower electrode 8, at this time, the tool with the large support 1 and the small support 2 is moved forwards, so that the two side surfaces of the inner side of the triangular groove hole in the base 6 are in tangential contact with the excircle of the lower electrode 8, the position is the position of an inner side spot welding point A31, and a spot welding switch is pedaled to complete spot welding of a first welding point A31. And then moving the tool with the large support 1 and the small support 2 in the left-back direction to enable the two side surfaces of the right corner in the triangular groove hole on the base 6 to be in tangential contact with the excircle of the lower electrode 8, wherein the position at the moment is the position of a spot welding point B32 on the right side, and stepping a spot welding switch to complete spot welding of a second welding point B32. Then, the tool with the large bracket and the small bracket is moved to the right direction, so that the two side surfaces of the left side angle in the triangular slotted hole on the base 6 are in tangential contact with the excircle of the lower electrode 8, the position at the moment is the position of a left side spot welding point C33, the spot welding switch is pedaled to complete the spot welding of a third welding point C33, and then the large bracket part and the small bracket part which complete the three spot welding are taken down from the tool.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A hand support bracket multipoint spot welding tool comprises a positioning plate, an upper positioning block, a base and a fixing screw, and is characterized in that one side of the positioning plate is provided with a notch for positioning a large bracket, the outline of the notch is matched with a spot welding surface of the large bracket, six positioning and mounting holes are formed in the outer side of the notch, the positioning plate is respectively positioned and fixed with the upper positioning block and the base through the positioning and mounting holes, and the positioning plate is provided with a small bracket;
a notch for positioning the small support is formed in the upper positioning block, the outline of the notch is matched with the spot welding surface of the small support, the outer side of the notch is matched with the spot welding surface of the large support, the bottom surface of the upper positioning block is in contact with the upper surface of the positioning plate, six threaded holes are further formed in the outer side of the notch, and the upper positioning block is respectively positioned and fixed with the positioning plate and the base through the threaded holes;
the upper positioning block is provided with an upper electrode, the lower positioning block is provided with a lower electrode, the base is provided with a triangular limiting hole, and three corners of the limiting hole are respectively in tangential contact with the excircle of the lower electrode.
2. The hand support bracket multipoint spot welding tool according to claim 1, characterized in that: the base is made of a bakelite plate.
3. The hand support bracket multipoint spot welding tool according to claim 2, characterized in that: the number of the fixing screws is six, and the fixing screws penetrate through the positioning mounting holes and the threaded holes.
4. The hand support bracket multipoint spot welding tool according to claim 1, characterized in that: the upper electrode is a central sharp electrode with the diameter of 16mm by 60mm, one part of one side of the upper electrode is cut off to form a cutting surface, and the upper electrode is connected with an upper electrode holding rod of the spot welding machine through a taper shank.
5. The hand support bracket multipoint spot welding tool according to claim 1, characterized in that: the lower electrode is a straight flat electrode with the diameter of 16mm by 60mm, and the lower electrode is connected with a holding rod of the spot welding machine through a taper shank.
6. The hand support bracket multipoint spot welding tool according to claim 1, characterized in that: the upper electrode and the lower electrode are both made of chromium zirconium copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567909.6U CN212470329U (en) | 2020-04-16 | 2020-04-16 | Hand holds in palm support multiple spot welding frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567909.6U CN212470329U (en) | 2020-04-16 | 2020-04-16 | Hand holds in palm support multiple spot welding frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212470329U true CN212470329U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020567909.6U Active CN212470329U (en) | 2020-04-16 | 2020-04-16 | Hand holds in palm support multiple spot welding frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212470329U (en) |
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2020
- 2020-04-16 CN CN202020567909.6U patent/CN212470329U/en active Active
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Address after: 201906 518 a, Fulian 2nd Road, Baoshan District, Shanghai Patentee after: SHANGHAI BAOSHAN DALU AUTO PARTS CO.,LTD. Address before: 201906 518 a, Fulian 2nd Road, Baoshan District, Shanghai Patentee before: Shanghai Baoshan continental Auto Parts Co.,Ltd. |