CN110681970A - Projection welding screw and electrode for welding same - Google Patents
Projection welding screw and electrode for welding same Download PDFInfo
- Publication number
- CN110681970A CN110681970A CN201910975519.4A CN201910975519A CN110681970A CN 110681970 A CN110681970 A CN 110681970A CN 201910975519 A CN201910975519 A CN 201910975519A CN 110681970 A CN110681970 A CN 110681970A
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- Prior art keywords
- screw
- welding
- projection
- projection welding
- positioning groove
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- 238000003466 welding Methods 0.000 title claims abstract description 141
- 239000010977 jade Substances 0.000 claims abstract description 3
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 229920000767 polyaniline Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920000128 polypyrrole Polymers 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to the technical field of welding, in particular to a projection welding screw and an electrode for welding the projection welding screw. The screw cap is protruded towards the periphery of one surface of the screw to form a projection welding ring, and a magnetic layer is arranged on one surface of the screw cap, which is back to the screw; the screw rod includes the pole body, with pole body sliding connection's protruding weld block, and can dismantle and even in the end cover of pole body back to nut one end, the spout is seted up to pole body periphery jade, in the protruding weld block card goes into the spout, the end cover carries out the shutoff to the one end of spout back to the nut. According to the invention, the convex welding points can be increased by arranging the convex welding blocks, so that the welding is firmer; the convex welding blocks can be conveniently taken out of the sliding grooves, so that the convex welding blocks with different sizes can be replaced to fill gaps, and the convex welding screws can be firmly welded with the workpieces to be welded; and a magnetic layer is arranged on the projection welding screw to facilitate picking.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a projection welding screw and an electrode for welding the projection welding screw.
Background
Under the situation that the competition of the domestic and foreign passenger car industry is increasingly severe, the projection welding screw is used as an important part on the whole car, the quality and the performance of the projection welding screw are very critical, and therefore the requirements of a host factory on the welding quality, the appearance and the position of the screw are increasingly strict. In order to ensure the comprehensive performance of projection welding, ensure the accessibility of the welding process, reduce the debugging time and the debugging cost, the structure of the projection welding screw needs more feasible and practical schemes.
The traditional projection welding screw only considers the mechanical performance and does not consider the welding performance and the assembly size function of the screw at the same time. In the actual use process, the positioning hole of the workpiece is often not matched with the screw rod part of the projection welding screw, so that a gap is formed between the positioning hole and the screw rod part, and the gap is not filled after welding, so that the welding is not firm. The problem can generally be solved by replacing projection welding screws of different screw sizes. However, the method is not convenient enough in the actual use process and has low universality. The applicant can conveniently fill the gap and weld by improving the structure of the projection welding screw and correspondingly providing a welding electrode matched with the projection welding screw, thereby achieving the purpose of improving the welding performance of the projection welding screw.
Disclosure of Invention
In order to solve the problems, the invention provides a projection welding screw and an electrode for welding the same, and the technical scheme is as follows:
a projection welding screw comprises a screw cap and a screw rod extending out of one surface of the screw cap, wherein the periphery of one surface of the screw cap, facing the screw rod, is protruded to form a projection welding ring, and a magnetic layer is arranged on one surface, back to the screw rod, of the screw cap; the screw rod includes the pole body, with pole body sliding connection's protruding weld block, and can dismantle even in the pole body dorsad the end cover of nut one end, the spout is seted up to pole body periphery jade, protruding weld block card is gone into in the spout, the end cover is right the spout dorsad the one end of nut is carried out the shutoff.
An electrode for welding a projection welding screw comprises an upper electrode and a lower electrode, wherein the upper electrode is provided with a clamping molded surface attached to one surface of a nut, which is provided with a magnetic layer; the lower electrode forms a first positioning groove, a second positioning groove is formed in the bottom surface of the first positioning groove in a protruding mode, the first positioning groove is used for being aligned with a positioning hole of a workpiece to be positioned, and the second positioning groove is used for enabling the rod body to be inserted to position the projection welding screw.
The technical scheme provided by the invention at least comprises the following beneficial effects:
the projection welding screw is provided with the projection welding block, so that the problem that a certain gap is left between the screw rod part size of the projection welding screw and the positioning hole of the workpiece due to insufficient matching of the screw rod part size and the positioning hole of the workpiece in the actual welding process is solved, and meanwhile, the projection welding points can be increased, so that the welding is firmer; in addition, as the convex welding block is connected with the rod body in a sliding manner and is provided with a detachable end cover for plugging the sliding chute formed in the rod body, the convex welding block can be conveniently taken out of the sliding chute, so that the gaps between the positioning holes with different sizes and the convex welding screws are different in the actual welding process, and the convex welding blocks with different sizes are required to fill the gaps, and the convex welding screws and the workpieces to be welded are firmly welded; the projection welding screw is further convenient to pick up by arranging the magnetic layer on the projection welding screw.
The electrode for welding the projection welding screw has the advantages that the upper electrode is provided with the clamping molded surface, so that the projection welding screw can be picked up conveniently; the lower electrode is respectively used for aligning the positioning holes of the workpiece and positioning the screw rod of the projection welding screw through the arrangement of the first positioning groove and the second positioning groove, so that the welding is convenient; in addition, the second positioning groove is also set as an insulator, so that the welding part of the positioning hole is not connected with the first positioning groove or the second positioning groove into a whole.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
In the present invention, unless otherwise expressly specified or limited, the term "disposed" is to be construed broadly, as meaning either a static or dynamic connection, a non-removable or removable connection, or a rest thereon or in a particular orientation; "fixed" is a static connection; the sleeve joint can be a sleeve joint which is sleeved outside a certain part without contacting, a sleeve joint which is sleeved outside the certain part and is in threaded connection with the certain part, or a sleeve joint which is sleeved outside the certain part and is in detachable connection; "threaded connection" means a connection by thread engagement, rotation; "rotationally connected" means connected by balls, rollers, etc., and one or both of the two connectors can rotate; the term "transmission connection" refers to a connection mode that is indirectly connected by means of a chain, a conveyor belt or a connecting rod and acts synchronously; "communicate" means "fixed" or "connected" together and the internal spaces are in communication; "electrically connected" means that the electronic components are connected by a conductive medium; unless otherwise specifically defined, the specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Drawings
FIG. 1 is a schematic view of a projection weld screw according to an embodiment of the present invention;
FIG. 2 is a schematic view of a projection welding screw according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
in the figure:
1 nut, 10 projection welding ring, 11 magnetic layer,
2 screw, 20 rod bodies, 200 sliding grooves, 21 convex welding blocks, 210 profiles, 22 end covers,
3 upper electrode, 30 clamping profile, 4 lower electrode, 40 first positioning groove, 42 second positioning groove, 5 workpiece and 50 positioning hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. In the description of the present invention, it is to be understood that the terms "first", "second", "third", "fourth", "fifth", and the like are used merely for distinguishing between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be understood that, if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used for indicating the orientation or positional relationship indicated based on the drawings, they are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a projection welding screw includes a nut 1 and a screw 2 extending from one surface of the nut 1, the nut 1 protrudes towards the periphery of one surface of the screw 2 to form a projection welding ring 10, and a magnetic layer 11 is disposed on the surface of the nut 1 opposite to the screw 2; the screw rod 2 comprises a rod body 20, a projection welding block 21 in sliding connection with the rod body 20 and an end cover 22 detachably connected to one end, back to the nut 1, of the rod body 20, a sliding groove 200 is formed in the peripheral wall of the rod body 20, the projection welding block 21 is clamped into the sliding groove 200, and the end cover 22 seals one end, back to the nut 1, of the sliding groove 200.
The projection welding screw provided by the embodiment of the invention is provided with the projection welding block, so that the problem that a certain gap is left between the screw rod part of the projection welding screw and the positioning hole of the workpiece due to insufficient matching of the screw rod part size of the projection welding screw and the positioning hole of the workpiece in the actual welding process is solved, and meanwhile, the projection welding points can be increased, so that the welding is firmer; in addition, as the convex welding block is connected with the rod body in a sliding manner and is provided with a detachable end cover for plugging the sliding chute formed in the rod body, the convex welding block can be conveniently taken out of the sliding chute, so that the gaps between the positioning holes with different sizes and the convex welding screws are different in the actual welding process, and the convex welding blocks with different sizes are required to fill the gaps, and the convex welding screws and the workpieces to be welded are firmly welded; the projection welding screw is further convenient to pick up by arranging the magnetic layer on the projection welding screw.
In addition, since the projection welding screw is provided with the magnetic layer 11, before the projection welding screw is used, the projection welding block 21 is attracted to the gap part of the positioning hole 50 abutting against the rod body 20 and the workpiece 5 due to the attraction of the magnetic layer 11 to the projection welding block 21, so that the gap is filled and welded in the projection welding block 21.
Specifically, the magnetic layer 11 is made of a magnetic conductive nano material, and the magnetic layer 11 has both magnetism and conductivity, so that the projection welding screw can attract the projection welding block 21 while being attracted to the upper electrode for welding, and has certain conductivity without reducing the conductivity of the projection welding screw during welding; specific magnetic conductive nano material is gamma-Fe2O3、Fe3O4The magnetic conductive polymer nanoparticles are prepared from conductive polymers such as poly-p-phenylene (PPP), polypyrrole (PPY), Polythiophene (PTH), Polyaniline (PANI), cross-linked polyaniline (CLPANI) or polyphenylacetylene (PPV) as main raw materials by blending, in-situ generation, in-situ polymerization, chemical plating or sol-gel method, and can be used for preparing Fe nanoparticles3O4–PPP、Fe3O4–CLPANI，Fe3O4–PANI,Fe3O4–PTH,γ-Fe2O3–PTH,Fe3O4-PPY, or Fe3O4–PANI-DBSA。
In order to weld and fill the gap between the rod body 20 and the positioning hole 50 of the workpiece 5 after the projection welding block 21 abuts against the nut 1 and the projection welding ring 10 is arranged, the invention provides a specific embodiment of the projection welding block 21, the projection welding block 21 is provided with a molded surface 210 abutting against the edge of the positioning hole 50 of the workpiece 5, and when the projection welding ring 10 abuts against the surface of the workpiece 5, because the tangential dimension of the screw rod 2 is too small, a gap is formed between the screw rod 2 and the positioning hole 50 of the workpiece 5, and the projection welding block 21 is clamped into the gap to fill the gap. Specifically, when the molded surface 210 of the projection welding ring 10 contacts the positioning hole 50 of the workpiece 5, the projection welding ring 10 can also contact the surface of the workpiece 5, so that the projection welding ring 10 and the projection welding block 10 can be welded at the same time, and the welding requirements of different points are met.
Specifically, the projection welding block 21 is made of a metallic welding material so as to be welded while being in contact with the workpiece 5. Specifically, the copper-based composite material can be made of copper welding wires, copper alloys or copper composite materials.
Specifically, the slide groove 200 is a straight slide groove or a spiral slide groove along the longitudinal direction of the lever body 20, and the projection welding piece 21 can linearly or spirally move along the longitudinal direction of the slide groove 200. When the chute 200 is straight, a plurality of the chutes 200 are uniformly arranged along the circumferential direction of the section of the rod body 20, a plurality of the projection welding blocks 21 are correspondingly arranged, and the plurality of the projection welding blocks 21 form a circle in the tangential direction, so that the whole positioning hole 50 of the workpiece 5 is circumferentially filled; when the sliding groove 200 is spiral, only one sliding groove 200 and only one projection welding block 21 are provided, and the projection welding block 21 is clamped into the sliding groove 200 to rotate along the sliding groove 200 and move along the length direction of the rod body 20. It should be noted that the arrangement of the sliding groove 200 does not affect the thread arrangement of the screw rod 2, i.e. the depth and width of the sliding groove 200 are greater than those of its own threads.
The embodiment of the invention also provides an electrode for projection welding screws, which comprises an upper electrode 3 and a lower electrode 4, wherein the upper electrode 3 is provided with a clamping molded surface 30 attached to one surface of the nut 1 provided with the magnetic layer 11; the lower electrode 4 includes a first positioning groove 40 formed therein, a second positioning groove 41 formed in a raised manner on the bottom surface of the first positioning groove 40, the first positioning groove 40 being for positioning in alignment with the positioning hole 50 of the workpiece 5, the second positioning groove 41 being for insertion of the rod body 20 for positioning a projection welding screw.
Thus, the workpiece 5 is placed on the lower electrode 4, so that the positioning hole 50 is aligned with the first positioning groove 40, the upper electrode 3 picks up the projection welding screw and inserts into the positioning hole 50 to enter the second positioning groove 41, the projection welding ring 10 abuts against the surface of the workpiece 5, and simultaneously, the projection welding block 21 also abuts against the surface of the workpiece 5, and welding is conducted.
Specifically, the maximum width of the opening of the second positioning groove 41 is not smaller than the maximum width of the lever body 20 in the tangential direction, and the maximum width between the surfaces of the projection welding pieces 21 on the lever body 20 is larger than the maximum width of the opening of the second positioning groove 41.
Thus, the rod body 20 can be inserted into the second positioning groove 41; when the gap formed between the rod body 20 and the positioning hole 50 of the workpiece 5 is too large, the lower bottom surface of the projection welding block 21 may cause melted welding liquid to flow down from the gap during welding, for this reason, the second positioning groove 41 can be abutted below the positioning hole 50 so as to form a welding seam, at this time, the edge of one end of the second positioning groove 41 close to the positioning opening is flush with the first positioning groove 40, and the second positioning groove 41 is an insulator so as to prevent the welding part of the positioning hole 50 from being connected with the first positioning groove 40 or the second positioning groove 41 into a whole.
Further, the trompil of second constant head tank 41 is provided with the internal thread, and the outer wall of pole body 20 is provided with the external screw thread of being connected with the interior screw-thread fit, so, the pole body can be fixed in second constant head tank 41 through the rotation.
Furthermore, the holding profile 30 has a shape adapted to the nut 1, the nut 1 is a column, the side wall of the nut forms a thread or a helical tooth, and the inner side wall of the holding profile 30 correspondingly forms a thread or a helical tooth. In use, since the surface of the nut 1 has the magnetic layer 11, and since the upper electrode 3 forming the clamping profile 30 is made of metal, it is attracted by the magnetic layer 11; when the second positioning groove 41 is provided with threads, the nut 1 can be conveniently sucked into the clamping molded surface 30, and the projection welding screw can be adsorbed on the upper electrode 3 by matching the threads or the spiral teeth of the nut 1 and the upper electrode 3, and the projection welding screw is driven by the upper electrode 3 to pass through the positioning hole of the workpiece 5 to be fixed in the second positioning groove 41.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A projection welding screw is characterized by comprising a screw cap and a screw rod extending out of one surface of the screw cap, wherein the periphery of one surface of the screw cap, facing the screw rod, is protruded to form a projection welding ring, and a magnetic layer is arranged on one surface, back to the screw rod, of the screw cap; the screw rod includes the pole body, with pole body sliding connection's protruding weld block, and can dismantle even in the pole body dorsad the end cover of nut one end, the spout is seted up to pole body periphery jade, protruding weld block card is gone into in the spout, the end cover is right the spout dorsad the one end of nut is carried out the shutoff.
2. The projection weld screw of claim 1, wherein the magnetic layer is made of a magnetic conductive nanomaterial.
3. The projection weld screw of claim 1, wherein the projection weld is a metallic weld material.
4. A projection welding screw according to claim 1, wherein said slide groove is a straight slide groove or a spiral slide groove along a length direction of said rod body.
5. The electrode for welding the projection welding screw comprises an upper electrode and a lower electrode, and is characterized in that the upper electrode is provided with a clamping molded surface which is attached to one surface, provided with the magnetic layer, of the nut; the lower electrode forms a first positioning groove, a second positioning groove is formed in the bottom surface of the first positioning groove in a protruding mode, the first positioning groove is used for being aligned with a positioning hole of a workpiece to be positioned, and the second positioning groove is used for enabling the rod body to be inserted to position the projection welding screw.
6. A projection welding screw welding electrode according to claim 5, wherein the maximum width of the opening of the second positioning groove is not smaller than the maximum width of the rod body in the tangential direction, and the maximum width between the projection pad surfaces on the rod body is larger than the maximum width of the opening of the second positioning groove.
7. The welding electrode for a projection welding screw according to claim 6, wherein the opening of the second positioning groove is provided with an internal thread, and the outer wall of the rod body is provided with an external thread which is engaged with the internal thread.
8. A projection welding screw welding electrode according to claim 5, characterized in that said second detent opening is flush with said first detent opening and said second detent is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975519.4A CN110681970B (en) | 2019-10-14 | 2019-10-14 | Projection welding screw and electrode for welding same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975519.4A CN110681970B (en) | 2019-10-14 | 2019-10-14 | Projection welding screw and electrode for welding same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110681970A true CN110681970A (en) | 2020-01-14 |
| CN110681970B CN110681970B (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910975519.4A Active CN110681970B (en) | 2019-10-14 | 2019-10-14 | Projection welding screw and electrode for welding same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110681970B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3481634A (en) * | 1967-11-20 | 1969-12-02 | Usm Corp | Stud attaching |
| JPH09206955A (en) * | 1996-01-31 | 1997-08-12 | Isuzu Motors Ltd | Method for welding different kind of metal |
| JPH09295229A (en) * | 1996-04-27 | 1997-11-18 | Yoshitaka Aoyama | Magnet type rod for supplying axial parts |
| CN203239719U (en) * | 2013-03-27 | 2013-10-16 | 北汽福田汽车股份有限公司 | Anti-rotation welding bolt |
| CN203316904U (en) * | 2013-07-03 | 2013-12-04 | 重庆星乔实业有限公司 | Floating projection welding bolt combination electrode |
| KR20180105515A (en) * | 2017-03-15 | 2018-09-28 | 주식회사 성우하이텍 | Weldbolt |
-
2019
- 2019-10-14 CN CN201910975519.4A patent/CN110681970B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3481634A (en) * | 1967-11-20 | 1969-12-02 | Usm Corp | Stud attaching |
| JPH09206955A (en) * | 1996-01-31 | 1997-08-12 | Isuzu Motors Ltd | Method for welding different kind of metal |
| JPH09295229A (en) * | 1996-04-27 | 1997-11-18 | Yoshitaka Aoyama | Magnet type rod for supplying axial parts |
| CN203239719U (en) * | 2013-03-27 | 2013-10-16 | 北汽福田汽车股份有限公司 | Anti-rotation welding bolt |
| CN203316904U (en) * | 2013-07-03 | 2013-12-04 | 重庆星乔实业有限公司 | Floating projection welding bolt combination electrode |
| KR20180105515A (en) * | 2017-03-15 | 2018-09-28 | 주식회사 성우하이텍 | Weldbolt |
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| Publication number | Publication date |
|---|---|
| CN110681970B (en) | 2021-07-23 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 430056 No.99, Minli 4th Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Dongshi (Wuhan) Automotive Parts Co.,Ltd. Address before: 430056 No.99, Minli 4th Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: DONGFENG (WUHAN) MOTOR PARTS AND COMPONENTS CO.,LTD. |