CN112975074B - Welding process - Google Patents
Welding process Download PDFInfo
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- CN112975074B CN112975074B CN202110261378.7A CN202110261378A CN112975074B CN 112975074 B CN112975074 B CN 112975074B CN 202110261378 A CN202110261378 A CN 202110261378A CN 112975074 B CN112975074 B CN 112975074B
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- welding
- fixing plate
- workpiece
- positioning clamp
- code positioning
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- 238000003466 welding Methods 0.000 title claims abstract description 446
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000005498 polishing Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000004381 surface treatment Methods 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000005238 degreasing Methods 0.000 claims abstract description 4
- 238000010304 firing Methods 0.000 claims abstract description 4
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- 230000007704 transition Effects 0.000 claims description 9
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- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 claims description 4
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- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 125000006850 spacer group Chemical group 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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Images
Classifications
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Abstract
The invention discloses a novel welding process which comprises the following steps: the method comprises the following steps: (1) carrying out surface treatment on the workpiece; the surface treatment comprises polishing, grinding, cleaning, sweeping, deburring, degreasing and descaling the surface of a workpiece; (2) manufacturing an enamel layer on the inner surface of the workpiece, coating the prepared glaze on the surface of the workpiece, and firing to form the enamel layer; (3) processing the outer surface of the workpiece in the area to be welded; polishing, cleaning and cleaning the surface of the area; (4) fixing a workpiece on a welding tool, and placing a welding code into a welding code positioning clamp of the welding tool; (5) welding the welding code on the workpiece through the stud welding machine, the welding gun and the welding electrode head which is integrally designed; the process flow can be used for processing the workpiece more conveniently and rapidly, and the processed workpiece has higher aesthetic degree.
Description
Technical Field
The invention relates to the field of manufacturing and processing of materials, in particular to a welding process.
Background
Welding, also known as fusion welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, in a heated, high temperature or high pressure manner; in the current existing welding process flow, taking an alternating current spot welder to weld an enamel cup as an example: firstly, welding a workpiece through a welding electrode tip of an alternating current spot welding machine; welding marks are left on the surface of a workpiece due to welding high temperature generated by the compaction and discharge of an upper electrode and a lower electrode of a spot welding machine after welding, even the workpiece is blackened and yellowed, surface treatment such as polishing, cleaning and deburring is needed to be carried out on the workpiece, and the marks cannot be perfectly removed; secondly, manufacturing an enamel layer on the inner surface of the workpiece; after the enamel layer is finished, the originally polished outer surface of the workpiece is discolored due to high temperature, and the outer surface of the workpiece needs to be polished again for the product to be attractive; obviously, the current process flow is to weld a workpiece and then to treat the workpiece in other forms, but obviously, after the workpiece is welded, the welding mark is left on the surface of the workpiece due to the welding high temperature generated by the compression and the placement of an upper electrode and a lower electrode of a spot welding machine, so that a large amount of time is needed to treat the workpiece, the treatment effect is not perfect, and the mark can be seen after the polishing and the grinding are finished; moreover, a welding part welded on a workpiece can affect the polishing of the outer surface of the enameled porcelain, corners can not be polished after a horseback support or a decoration part is welded on the outer surface, the polishing is dangerous, and the horseback support decoration part on the surface can damage a polishing wheel and easily hurt people; the working rotation can also generate non-concentricity, jumping and the like, so that the enamel layer is damaged; therefore, the efficiency and the yield of product production are greatly influenced, and the whole production process is time-consuming and labor-consuming while the attractiveness of the product is influenced.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a welding process and aims to solve the technical problem that the production of a welded product is time-consuming and labor-consuming in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a welding process comprises the following steps: the method comprises the following steps:
(1) carrying out surface treatment on the workpiece; the surface treatment comprises polishing, grinding, cleaning, deburring, degreasing and descaling the surface of a workpiece;
(2) manufacturing an enamel layer on the inner surface of the workpiece, coating the prepared glaze on the surface of the workpiece, and firing to form the enamel layer;
(3) processing the outer surface of the workpiece in the area to be welded; polishing, cleaning and cleaning the surface of the area;
(4) fixing a workpiece on a welding tool, and placing a welding code into a welding code positioning clamp of the welding tool;
(5) and welding the welding code on the workpiece through the stud welding machine, the welding gun and the welding electrode tip which is integrally designed.
Further, the welding tool in the step (4) comprises a fixing part, a horizontal cylinder, a vertical cylinder and a welding code positioning clamp; horizontal cylinder, perpendicular cylinder and the young positioning fixture of welding sign indicating number all set up on the fixed part to exert the effort to the work piece at level and vertical direction through its three, fix the work piece on the frock, still be provided with on the young positioning fixture of welding sign indicating number and carry out the welding mouth injectd with the position of the young position of welding sign indicating number corresponding the solder joint.
Furthermore, the fixing part comprises a first fixing plate, a second fixing plate and a third fixing plate, one end of the first fixing plate and one end of the second fixing plate are connected with the third fixing plate, the first fixing plate and the second fixing plate are perpendicular to the third fixing plate, and the first fixing plate and the second fixing plate are both arranged on the same surface of the third fixing plate and are parallel to each other;
reinforcing blocks are also arranged between the first fixing plate and the third fixing plate and between the second fixing plate and the third fixing plate;
the horizontal cylinder is arranged on the second fixing plate; a first through hole for a cylinder arm of the horizontal cylinder to pass through is formed in the second fixing plate;
a limiting part is further arranged on the second fixing plate and comprises a cup body limiting part, a limiting shaft and a limiting shaft fixing ring; the cup body limiting part is columnar and hollow, so that a cup body limiting space is formed, an opening is formed in one end of the cup body limiting part, and the opening is oriented to the first fixing plate; a second through hole is also formed in the second fixing plate, and the limiting shaft fixing ring is arranged in the second through hole; the limiting shaft fixing ring is columnar, the interior of the limiting shaft fixing ring is hollow, so that a limiting shaft passing space is formed, and openings are formed in two ends of the limiting shaft fixing ring; one end of the limiting shaft is connected with the cup body limiting part and penetrates through the cup body limiting part to be assembled with the enamel cup, one end of the limiting shaft, which is far away from the cup body limiting part, penetrates through the limiting shaft to pass through the space, and the cup body limiting part is arranged between the second fixing plate and the first fixing plate; a cylinder arm of the horizontal cylinder passes through the first through hole and is connected with the cup body limiting part;
the vertical cylinder is arranged on the first fixing plate and is positioned on the surface of the first fixing plate, which is far away from the second fixing plate; a positioning fixture fixing block is also arranged at one end of the cylinder arm of the vertical cylinder, which is far away from the vertical cylinder;
the welding code positioning clamp comprises a welding code positioning clamp body and a welding code positioning clamp connection guide rod, and one end of the welding code positioning clamp body is connected with a positioning clamp fixing block; the other end of the welding code positioning clamp body is connected with one end of a connecting guide rod of the welding code positioning clamp; the other end of the welding code positioning clamp, which is connected with the guide rod, is contacted with the second fixing plate; a welding code positioning clamp connecting guide seat used for limiting a welding code positioning clamp connecting guide rod is further arranged at one end, far away from the third fixing plate, of the second fixing plate; the upper surface of the welding code positioning clamp connecting guide seat is also provided with a connecting opening corresponding to the welding code positioning clamp connecting guide rod;
the welding code positioning clamp body and the welding code positioning clamp are connected with the guide rod in a columnar shape, and two mounting openings, namely a first mounting opening and a second mounting opening, are formed in two ends of the lower surface of the welding code positioning clamp body; the first mounting notch corresponds to the upper surface of the positioning clamp fixing block and is in threaded connection with the upper surface of the positioning clamp fixing block, and the second mounting notch corresponds to the outer surface of the cup body limiting part; a third mounting opening is further formed in one end, corresponding to the second mounting opening, of the upper surface of the welding code positioning clamp body and used for mounting a connecting guide rod of the welding code positioning clamp; the welding jig comprises a welding jig body and is characterized in that at least one welding port is formed in the welding jig body, and the welding port comprises a first welding port and a second welding port which penetrate through the upper surface and the lower surface of the welding jig body; the first welding port is a through hole, and the upper surface and the lower surface of the welding code positioning clamp body are directly penetrated through; the second welding port comprises a first interface and a second interface, the second interface is arranged in the first interface, and the first interface is a blind hole; the second interface is a through hole arranged in the middle of the first interface;
the welding tool further comprises a base, and the fixing part is arranged on the upper surface of the base; the lower surface of the base is also provided with a pulley.
Further, the welding electrode tip of the welding gun in the step (5) comprises a welding part, a joint part and a mounting part; the welding part and the assembling part are arranged at two ends of the connecting part, the welding part is contacted with the workpiece, and the assembling part is assembled with the welding gun.
Further, the welding electrode tip is columnar as a whole;
the joint part is columnar; one end of the connecting part connected with the welding part is a first connecting end; the connecting end of the connecting part and the assembling part is a second connecting end;
the welding part is in a table shape, and one end with smaller diameter of the welding part is a welding end; the end with larger diameter of the welding part is a third joint end which is connected with the first joint end of the joint part; the diameter of the third joint end is consistent with that of the joint part; the included angle between the side surface of the welding part and the first joint end is less than 90 degrees; the included angle between the side surface of the welding part and the welding end is less than 90 degrees;
a transition surface is arranged between the side surface of the welding part and the welding end;
the assembling part is in a table shape, and one end of the assembling part is connected with the second connection end;
the end with the smaller diameter of the assembling part is a first assembling end; the end with the larger diameter of the assembling part is a second assembling end, and the included angle between the inclined plane of the assembling part and the second assembling end is less than 60 degrees; the included angle between the inclined plane of the assembling part and the first assembling end is more than 120 degrees;
the welding electrode tip is made of chromium zirconium copper;
the welding electrode tip is assembled with the welding gun through the first assembling end.
Further, the welding gun in the step (5) is a special welding gun of the stud welding machine, and the welding gun is connected with the stud welding machine.
Furthermore, the welding electrode tip is a positive electrode and is connected with a welding machine through a welding gun; when in welding, the welding electrode tip is contacted with a workpiece and discharges after a certain pressure is applied through a built-in spring of the welding gun, and the negative electrode of the process can conduct electricity to the welding workpiece from any direction, so that the welding code is welded on the workpiece.
The invention has the beneficial effects that:
1. compared with the prior art, the welding process provided by the invention adopts the welding gun with the welding tool and the welding electrode tip integrated for production; a transition surface is arranged between the side surface of the welding part and the welding end of the welding electrode tip, so that the welding electrode tip is smoother in the welding process, and the welding surface is more exquisite, so that the practical welding effect is more excellent; applying force in the horizontal direction through a horizontal cylinder to fix the enamel cup on the tool; the welding frock passes through perpendicular cylinder, exerts the force in the vertical direction for the young positioning fixture of welding sign indicating number reachs the assigned position, still is provided with the welding mouth that corresponds the solder joint and inject the position of welding piece on the young positioning fixture of welding sign indicating number, makes the work piece welding position after the frock processing unified and convenient welding process.
2. Compared with the prior art, various surface treatments are carried out after welding, but the welding parts are poor in subsequent surface treatment of the welded workpiece due to the welding parts; for example, a metal cup-shaped workpiece whose outer surface is welded needs to have an enamel layer formed on the inner surface of the workpiece, but the outer surface of the workpiece changes its color at high temperature due to the formation of enamel, and thus, for the aesthetic appearance of the product formed by the workpiece, it is necessary to polish the outer surface of the workpiece, but it is difficult to perform overall processing on the welded part during polishing due to the welded part on the outer surface of the workpiece;
the process of the invention comprises the steps of firstly, carrying out surface treatment on a formed workpiece to enable the workpiece to be smooth and flat, and then selecting whether an enamel layer is manufactured on the inner surface of the workpiece; if the manufacturing of the enamel layer is selected, the outer surface of the workpiece is polished after the manufacturing of the enamel layer, and then welding can be carried out; if the enamel layer is not selected to be manufactured, the outer surface of the enamel layer is directly welded;
therefore, compared with the prior art, the process of the invention can process the workpiece more conveniently and rapidly, and the processed workpiece has higher aesthetic degree.
3. Compared with the prior art, the equipment used for welding generally adopts an alternating current welding machine, an energy storage welding machine and a medium frequency welding machine, which all comprise an upper electrode and a lower electrode, wherein the upper electrode is arranged on the outer surface of the workpiece, and the lower electrode is arranged on the inner surface of the workpiece; during welding, a workpiece is fixed at one electrode, and the other electrode is pressed downwards and discharges electricity so as to realize welding; in order to realize the compaction action of the upper electrode and the lower electrode, the alternating current welding machine, the energy storage welding machine and the medium frequency point welding machine also comprise a device for compacting, but the surface of a workpiece can be damaged when the electrodes are compacted, so that indentation is generated on the surface of the workpiece, and the attractiveness of a product can be influenced;
the process of the invention adopts a welding gun with an integrated welding electrode tip for welding, wherein the welding electrode tip is a positive electrode and is connected with a welding machine through the welding gun; during welding, the welding electrode tip is in contact with a welding workpiece and discharges after a certain pressure is applied through a built-in spring of the welding gun, so that the welding code is welded on the workpiece, and no electrode tip applies acting force to the inner surface of the workpiece and damages the workpiece in the welding process; the cathode of the process can conduct electricity to the welding workpiece from any direction, and the welding process of the welding code is completed by applying certain pressure to the welding code by the welding gun, so that the welding damage to the outer surface of the workpiece is reduced, and the product manufactured by the process is high in aesthetic degree.
4. The process of the invention utilizes the stud welding machine, is matched with the welding electrode head and the welding tool which are integrally designed, realizes the function of a common AC spot welding machine, and has quicker welding and more beautiful appearance than the AC spot welding machine; the porcelain enamel post-welding clamp bracket or the decorating part which cannot be realized by the alternating-current spot welding machine is realized.
Drawings
FIG. 1 is a flow chart of a welding process of the present invention.
Fig. 2 is an overall structure diagram of the welding tool.
Fig. 3 is a structural diagram after the enamel cup is assembled by the welding tool.
FIG. 4 is a structural diagram of an unassembled enamel cup of the welding tool.
Fig. 5 is a structure view of the fixing portion.
Fig. 6 is a structural view of a welding code positioning jig body.
Fig. 7 is a side view of the welding code positioning jig body.
FIG. 8 is a top view of the welding clip positioning fixture body.
FIG. 9 is a view showing a structure of a welding spacer positioning jig engaging guide bar.
Fig. 10 is a structural view of a welding code positioning clamp connection guide seat.
Fig. 11 is a view of a structure defining a shaft fixing ring.
Fig. 12 is a structural view of a welding electrode tip.
Fig. 13 is a cross-sectional view of a welded electrode tip.
Fig. 14 is a structural view of the welded electrode tip at the joint portion.
Fig. 15 is a structure view of the welded portion of the welding electrode tip.
Fig. 16 is a structural view of a welded electrode tip transition surface.
Fig. 17 is a structural view at the fitting portion of the welding electrode tip.
Fig. 18 is an overall configuration diagram of the torch.
Reference numbers in the figures:
1. a horizontal cylinder; 2. a vertical cylinder; 3. welding a code positioning clamp; 4. a fixed part; 5. a base; 6. an enamel cup; 7. a welding gun; 8. welding electrode tips; 11. welding a cable; 12. a welding gun handle; 13. mounting a nut; 21. positioning a fixture fixing block; 22. a joining section; 23. an assembling portion; 24. welding the part; 31. welding the clamp body; 32. the welding code positioning clamp is connected with the guide rod; 33. the welding code positioning clamp is connected with the guide seat; 41. a first fixing plate; 42. a second fixing plate; 43. a third fixing plate; 44. a reinforcing block; 45. a limiting part; 51. a pulley; 211. welding the end; 212. a third engagement end; 213. transition surface; 221. a first engagement end; 222. a second engagement end; 231. a first mounting end; 232. a second mounting end; 311. a first mounting opening; 312. a second mounting opening; 313. a third mounting opening; 314. welding the opening; 315. a first weld opening; 316. a second weld joint; 317. a first interface; 318. a second interface; 331. connecting the gaps; 421. a first through hole; 422. a second through hole; 451. a cup body defining part; 452. defining an axis; 453. a limiting shaft fixing ring; 454. the cup body defines a space; 455. defining an axial through space.
Detailed Description
The invention is further described with reference to the following figures and specific examples. It should be noted that the examples are only for specifically illustrating the present invention, and the purpose thereof is to make the technical solution of the present invention better understood by those skilled in the art, and should not be construed as limiting the present invention.
The embodiment is as follows:
as shown in fig. 1, a welding process: the method comprises the following steps:
(1) carrying out surface treatment on the workpiece; the surface treatment comprises polishing, grinding, cleaning, sweeping, deburring, degreasing and descaling the surface of a workpiece;
(2) manufacturing an enamel layer on the inner surface of the workpiece, coating the prepared glaze on the surface of the workpiece, and firing to form the enamel layer;
(3) processing the outer surface of the workpiece in the area to be welded; polishing, cleaning and cleaning the surface of the area;
(4) fixing a workpiece on a welding tool, and placing a welding code into a welding code positioning clamp of the welding tool;
(5) welding the welding code on the workpiece through the stud welding machine, the welding gun and the welding electrode head which is integrally designed;
compared with the prior art, the welding process provided by the invention adopts the welding gun with the welding tool and the welding electrode tip integrated for production; a transition surface is arranged between the side surface of the welding part and the welding end of the welding electrode tip, so that the welding electrode tip is smoother in the welding process, and the welding surface is more exquisite, so that the practical welding effect is more excellent; applying force in the horizontal direction through a horizontal cylinder to fix the enamel cup on the tool; the welding frock passes through perpendicular cylinder, exerts the force in the vertical direction for the young positioning fixture of welding sign indicating number reachs the assigned position, still is provided with the welding mouth that corresponds the solder joint and inject the position of welding piece on the young positioning fixture of welding sign indicating number, makes the work piece welding position after the frock processing unified and convenient welding process.
As shown in fig. 2, 3 and 4, in the present invention, the welding fixture in step (4) includes a fixing portion, a horizontal cylinder, a vertical cylinder and a welding knob positioning fixture; horizontal cylinder, perpendicular cylinder and the young positioning fixture of welding sign indicating number all set up on the fixed part to exert the effort to the work piece at level and vertical direction through its three, fix the work piece on the frock, still be provided with on the young positioning fixture of welding sign indicating number and carry out the welding mouth injectd with the position of the young position of welding sign indicating number corresponding the solder joint.
As shown in fig. 5, in the present invention, the fixing portion 4 includes a first fixing plate 41, a second fixing plate 42 and a third fixing plate 43, and the first fixing plate 41, the second fixing plate 42 and the third fixing plate 43 are rectangular, and can be changed accordingly if the product is needed; one end of the first fixing plate 41 and one end of the second fixing plate 42 are connected to the third fixing plate 43, the first fixing plate 41, the second fixing plate 42 and the third fixing plate 43 are perpendicular to each other, and both the first fixing plate 41 and the second fixing plate 42 are disposed on the same surface of the third fixing plate 43 and are parallel to each other; so that the enamel cup 6 can be firmly assembled between the first fixing plate 41 and the second fixing plate 42 and the occurrence of damage to the product or deviation in the welding position due to deviation of the mounting surface is prevented.
In some preferred manners, reinforcing blocks 44 are further disposed between the first fixing plate 41 and the third fixing plate 43 and between the second fixing plate 42 and the third fixing plate 43, and the reinforcing blocks 44 can reinforce the connection stability between the third fixing plate 43 and the first fixing plate 41 and the second fixing plate 42, and play a role of supporting the first fixing plate 41 and the second fixing plate 42 while the horizontal cylinder 1 is active.
In some preferred modes, the horizontal cylinder 1 is arranged on the second fixing plate 42 and is positioned on the surface of the second fixing plate 42 far away from the first fixing plate 41; a first through hole 421 for the cylinder arm of the horizontal cylinder 1 to pass through is arranged on the second fixing plate 42; the enamel cup 6 can be assembled and the subsequent welding work can be carried out under the pushing of the cylinder arm of the horizontal cylinder 1.
As shown in fig. 11, in some preferred modes, a limiting part 45 is further provided on the second fixing plate 42 for pushing the enamel cup 6 to a designated position to complete the assembly work; the defining portion 45 includes a cup defining portion 451, a defining shaft 452, and a defining shaft fixing ring 453; the cup body limiting part 451 is cylindrical and hollowed out to form a cup body limiting space 454, and an opening is formed at one end of the cup body limiting part 451 and faces the first fixing plate 41; the bottom of the enamel cup 6 is arranged in the cup body defining space 454, and the cup mouth of the enamel cup 6 is in contact with the surface of the first fixing plate 41 facing the second fixing plate 42; a second through hole 422 is further provided in the second fixing plate 42, and a shaft-defining fixing ring 453 is disposed in the second through hole 422; the limiting shaft fixing ring 453 is cylindrical, the inside of the limiting shaft fixing ring 453 is hollowed out, so that a limiting shaft passing space 455 is formed, and openings are formed at both ends of the limiting shaft fixing ring 453; one end of the limiting shaft 452 is connected with the cup body limiting part 451 and passes through the cup body limiting part 451 to be assembled with the enamel cup 6, so that the enamel cup 6 is assembled more firmly; an end of the defining shaft 452 remote from the cup defining part 451 passes through the defining shaft passing space 455, and the cup defining part 451 is disposed between the second fixing plate 42 and the first fixing plate 41; the cylinder arm of the horizontal cylinder 1 passes through the first through hole 421 to be connected with the cup body limiting part 451, and the limiting part 45 more firmly fixes the enamel cup 6 on the tool; the enamel cup 6 is more firmly installed through the cup body limiting part 451; the enamel cup 6 has extra supporting force except the horizontal cylinder 1 through the limiting shaft 452 and the limiting shaft fixing ring 453, so that the overall stability of the welding tool is improved; the corresponding cup limiting part 451 or the end face of the enamel cup 6 in contact with the cup limiting part 451 can be replaced according to the product structure and the different positions of the product to be welded, so that the welding tool can be suitable for more products, and the production cost is reduced.
In some preferred modes, the vertical cylinder 2 is arranged on the first fixing plate 41 and is positioned on the surface of the first fixing plate 41 far away from the second fixing plate 42; and a positioning clamp fixing block 21 is further arranged at one end, far away from the vertical cylinder 2, of the cylinder arm of the vertical cylinder 2 and is used for being connected with the welding clamp positioning clamp 3.
As shown in fig. 6, 7, 9 and 10, in some preferred modes, the welding collar positioning fixture 3 includes a welding collar positioning fixture body 31 and a welding collar positioning fixture engaging guide rod 32, both of which are quadrangular-prism-shaped; one end of the welding code positioning clamp body 31 is in threaded connection with the positioning clamp fixing block 21, so that the welding code positioning clamp 3 can be detached and replaced, and the welding tool can be suitable for production of more products; the connection mode can be modified into other connection modes such as hinge connection and the like according to the production requirements of the product; the other end of the welding code positioning clamp body 31 is in threaded connection with one end of the welding code positioning clamp connection guide rod 32, so that the welding code positioning clamp 3 and the welding code positioning clamp connection guide rod 32 can be detached and replaced, and the welding tool can be suitable for production of more products; the other end of the welding clip positioning fixture connected with the guide rod 32 is contacted with the second fixing plate 42; a welding code positioning clamp connecting guide seat 33 used for limiting the welding code positioning clamp connecting guide rod 32 is further arranged at one end, far away from the third fixing plate 43, of the second fixing plate 42; the welding jig splicing guide seat 33 is in a convex shape, the welding jig splicing guide seat 33 is provided with a convex surface which is an upper surface, the other surface is a lower surface, the lower surface of the welding jig splicing guide seat is in contact with the second fixing plate 42 and is in threaded connection, so that the welding jig splicing guide seat 33 can be detached and replaced corresponding to the welding jig splicing guide rod 32, and the welding jig is suitable for production of more products; the upper surface of the welding code positioning clamp connection guide seat 33 is also provided with a connection opening 331 corresponding to the welding code positioning clamp connection guide rod 32, and the welding code positioning clamp connection guide rod 32 slides in the connection opening 331 along with the movement of the cylinder arm of the horizontal cylinder 1.
In some preferred modes, the welding code positioning clamp is made of a temperature-resistant and wear-resistant insulating material; the welding electrode tip can not be ignited and burned to weld the welding part and the welding electrode tip when welding products are not damaged.
As shown in fig. 8, in some preferred embodiments, two mounting notches, namely a first mounting notch 311 and a second mounting notch 312, are disposed at two ends of the lower surface of the welding tab positioning fixture body 31; the first mounting notch 311 corresponds to the upper surface of the positioning fixture fixing block 21, and the contact between the welding clamp body 31 and the edge of the opening of the enamel cup 6 is avoided, so that the enamel cup 6 is prevented from being damaged by the welding tool in the working process; the second mounting notch 312 corresponds to the outer surface of the cup body limiting part 451, so that the welding clip positioning fixture body 31 can further limit the position of the cup body limiting part 451 when the size of the enamel cup 6 is small, and the enamel cup 6 is prevented from being damaged by the welding tool in the working process; a third mounting opening 313 is further formed in one end of the upper surface of the welding clip positioning fixture body 31, corresponding to the second mounting opening 312, and used for mounting the welding clip positioning fixture engagement guide rod 32; the welding clamp body 31 is further provided with three welding ports 314, and the welding ports 314 comprise a first welding port 315 and two second welding ports 316 which penetrate through the upper surface and the lower surface of the welding clamp body 31; the first welding port 315 is a through hole, and directly penetrates through the upper surface and the lower surface of the welding code positioning clamp body 31; the second welding interface 316 comprises a first interface 317 and a second interface 318, the second interface 318 is disposed in the first interface 317, and the first interface 317 is a blind hole; the second interface 318 is a through hole disposed in the middle of the first interface 317; the provision of the first interface 317 makes it easier to place weldments within the second interface 318 for removal and welding of a greater variety of weldments possible.
In some preferred modes, the device further comprises a base 5, wherein the fixing part 4 is arranged on the upper surface of the base 5; still be provided with pulley 51 at the lower surface of base 5 for this welding frock can move about under pulley 51's drive, makes things convenient for its placing and activity in the workshop.
In the present invention, the welding tip 8 of the welding torch of step (5) includes a welding portion 24, a joint portion 22, and a fitting portion 23; the welding portion 24 and the mounting portion 23 are provided at both ends of the joining portion, the welding portion 24 is in contact with the workpiece, and the mounting portion 23 is mounted to the welding gun.
As shown in fig. 12, in the present invention, the welding electrode tip 8 has an overall cylindrical shape, which facilitates the installation thereof and also provides a better welding effect; the structure of the welding electrode head 8 can be changed in accordance with the requirements of the product.
As shown in fig. 13, in some preferred forms, the welding electrode head 8 comprises a welding portion 24, an adapter portion 22 and a fitting portion 23; the welding portion 24 and the fitting portion 23 are provided at both ends of the joining portion 22, the welding tip 8 is brought into contact with the welding material through the welding portion 24 to perform a welding operation, and the welding tip 8 is brought into contact with the welding torch through the fitting portion 23.
In some preferred forms, as shown in fig. 14, the engagement portion 22 has a cylindrical shape; the connection end of the connection part 22 and the welding part 24 is a first connection end 221; the connecting end of the connecting part 22 and the assembling part 23 is a second connecting end 222; the welding electrode tip 8 joins and assembles the welding part 24 and the assembling part 23 through the joining part 22, so that the overall working stability is better; the structure of the engagement portion 22 may be changed in case of product needs.
As shown in fig. 15, in some preferred modes, the welding portion 24 is in a circular truncated cone shape, and one end of the welding portion 24 with a smaller diameter is a welding end 211; the end of the welding portion 24 having a larger diameter is a third joint end 212 connected to the first joint end 221 of the joint portion 22; the diameter of the third joint end 212 coincides with the diameter of the joint 22; the angle between the side of the welding portion 24 and the first engagement end 221 is 60 °; the included angle between the side surface of the welding part 24 and the welding end 211 is 120 degrees; the overall shape of the welding portion 24 is changed according to the overall shape of the joint portion 22.
As shown in fig. 16, in some preferred embodiments, a transition surface 213 is disposed between the side surface of the welding portion 24 and the welding end 211, and the transition surface 213 is a curved surface, so that the welding line of the welding gun is finer and smoother during the welding process, and the production quality of the product is improved; the transition surface 213 may also be varied in case of corresponding product needs.
As shown in fig. 17, in some preferred modes, the assembling portion 23 is in a circular truncated cone shape, and one end of the assembling portion 23 is connected with the second joint end 222; the end of the fitting portion 23 having a smaller diameter is the first fitting end 231; the end of the fitting portion 23 having the larger diameter is a second fitting end 232, and the diameter of the second fitting end 232 is the same as that of the joint portion 22 and is connected to the second joint end 222 of the joint portion 22; the included angle between the inclined plane of the assembling part 23 and the second assembling end 232 is 45 degrees; the angle between the inclined surface of the fitting portion 23 and the first fitting end 231 is 135 °; the overall shape of the fitting portion 23 is changed according to the overall shape of the joint portion 22.
In some preferred forms, the welding electrode head 8 is made of chromium zirconium copper; the chromium zirconium copper has good electrical conductivity, thermal conductivity, high hardness, wear resistance, explosion resistance, crack resistance and softening temperature, less electrode loss during welding, high welding speed and low total welding cost, and is suitable for being used as an electrode related pipe fitting of a welding machine.
As shown in fig. 18, in some preferred modes, the welding electrode tip 8 is assembled with the welding gun 7 through the first assembling end 231; the welding gun 7 comprises a welding cable 11, a welding gun handle 12 and a mounting nut 13, wherein the welding cable 11 and the mounting nut 13 are both arranged on the welding gun handle 12; the welding gun handle 12 is connected with a power supply through a welding cable 11; the welding gun handle 12 is assembled with the welding electrode tip 8 through the mounting nut 13; the welding gun is conventional and will not be described in detail.
The welding gun in the step (5) is a special welding gun of the stud welding machine, and the welding gun is connected with the stud welding machine;
compared with the prior art, the equipment used for welding generally adopts an alternating current welding machine, an energy storage welding machine and a medium frequency welding machine, which all comprise an upper electrode and a lower electrode, wherein the upper electrode is arranged on the outer surface of the workpiece, and the lower electrode is arranged on the inner surface of the workpiece; during welding, a workpiece is fixed at one electrode, and the other electrode is pressed downwards and discharges electricity so as to realize welding; in order to realize the compaction action of the upper electrode and the lower electrode, the alternating current welding machine, the energy storage welding machine and the medium frequency point welding machine also comprise a device for compacting, but the surface of a workpiece can be damaged when the electrodes are compacted, so that indentation is generated on the surface of the workpiece, and the attractiveness of a product can be influenced;
the process of the invention utilizes the stud welding machine, is matched with the welding electrode head and the welding tool which are integrally designed, realizes the function of a common AC spot welding machine, and has quicker welding and more beautiful appearance than the AC spot welding machine; the method realizes the welding of the code sub bracket or the decorating part after the enamel, which cannot be realized by the AC spot welder;
the process of the invention adopts a welding gun with an integrated welding electrode tip for welding, wherein the welding electrode tip is a positive electrode and is connected with a welding machine through the welding gun; during welding, the welding electrode tip is in contact with a welding workpiece and discharges after a certain pressure is applied through a built-in spring of the welding gun, and the welding workpiece can be electrically conducted from any direction by adopting a cathode of a special welding gun of the stud welding machine, so that a welding code is welded on the workpiece, and no electrode tip applies acting force to the inner surface of the workpiece and damages the workpiece in the welding process; the cathode of the process can conduct electricity to the welding workpiece from any direction, and the welding process of the welding code is completed by applying certain pressure to the welding code by the welding gun, so that the welding damage to the outer surface of the workpiece is reduced, and the product manufactured by the process is high in aesthetic degree.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (5)
1. A welding process, characterized in that: the method comprises the following steps:
(1) carrying out surface treatment on the workpiece; the surface treatment comprises polishing, grinding, cleaning, sweeping, deburring, degreasing and descaling the surface of a workpiece;
(2) manufacturing an enamel layer on the inner surface of the workpiece, coating the prepared glaze on the surface of the workpiece, and firing to form the enamel layer;
(3) processing the outer surface of the workpiece in the area to be welded; polishing, cleaning and cleaning the surface of the area;
(4) fixing a workpiece on a welding tool, and placing a welding code into a welding code positioning clamp of the welding tool;
(5) welding the welding code on the workpiece through the stud welding machine, the welding gun and the welding electrode head which is integrally designed;
the welding tool in the step (4) comprises a fixing part, a horizontal cylinder, a vertical cylinder and a welding code positioning clamp; the horizontal cylinder, the vertical cylinder and the welding code positioning clamp are all arranged on the fixing part, acting force is applied to the workpiece in the horizontal direction and the vertical direction through the horizontal cylinder, the vertical cylinder and the welding code positioning clamp, the workpiece is fixed on the tool, and a welding opening which corresponds to a welding spot and limits the position of the welding code is further arranged on the welding code positioning clamp;
the fixing part comprises a first fixing plate, a second fixing plate and a third fixing plate, one end of the first fixing plate and one end of the second fixing plate are connected with the third fixing plate, the first fixing plate, the second fixing plate and the third fixing plate are perpendicular to each other, and the first fixing plate and the second fixing plate are arranged on the same surface of the third fixing plate and are parallel to each other;
reinforcing blocks are also arranged between the first fixing plate and the third fixing plate and between the second fixing plate and the third fixing plate;
the horizontal cylinder is arranged on the second fixing plate; a first through hole for a cylinder arm of the horizontal cylinder to pass through is formed in the second fixing plate;
a limiting part is further arranged on the second fixing plate and comprises a cup body limiting part, a limiting shaft and a limiting shaft fixing ring; the cup body limiting part is columnar and hollow, so that a cup body limiting space is formed, an opening is formed in one end of the cup body limiting part, and the opening is oriented to the first fixing plate; a second through hole is also formed in the second fixing plate, and the limiting shaft fixing ring is arranged in the second through hole; the limiting shaft fixing ring is columnar, the interior of the limiting shaft fixing ring is hollow, so that a limiting shaft passing space is formed, and openings are formed in two ends of the limiting shaft fixing ring; one end of the limiting shaft is connected with the cup body limiting part and penetrates through the cup body limiting part to be assembled with the enamel cup, one end, far away from the cup body limiting part, of the limiting shaft penetrates through the limiting shaft passing space, and the cup body limiting part is arranged between the second fixing plate and the first fixing plate; a cylinder arm of the horizontal cylinder passes through the first through hole and is connected with the cup body limiting part;
the vertical cylinder is arranged on the first fixing plate and is positioned on the surface of the first fixing plate, which is far away from the second fixing plate; a positioning fixture fixing block is also arranged at one end of the cylinder arm of the vertical cylinder, which is far away from the vertical cylinder;
the welding code positioning clamp comprises a welding code positioning clamp body and a welding code positioning clamp connection guide rod, and one end of the welding code positioning clamp body is connected with the positioning clamp fixing block; the other end of the welding code positioning clamp body is connected with one end of a connecting guide rod of the welding code positioning clamp; the other end of the welding code positioning clamp, which is connected with the guide rod, is contacted with the second fixing plate; a welding code positioning fixture connecting guide seat used for limiting a welding code positioning fixture connecting guide rod is further arranged at one end, far away from the third fixing plate, of the second fixing plate; the upper surface of the welding code positioning clamp connecting guide seat is also provided with a connecting opening corresponding to the welding code positioning clamp connecting guide rod;
the welding code positioning clamp body and the welding code positioning clamp are connected with the guide rod in a columnar shape, and two mounting openings, namely a first mounting opening and a second mounting opening, are formed in two ends of the lower surface of the welding code positioning clamp body; the first mounting notch corresponds to the upper surface of the positioning clamp fixing block, the first mounting notch and the positioning clamp fixing block are connected through threads, and the second mounting notch corresponds to the outer surface of the cup body limiting part; a third mounting opening is further formed in one end, corresponding to the second mounting opening, of the upper surface of the welding code positioning clamp body and used for mounting a connecting guide rod of the welding code positioning clamp; the welding jig comprises a welding jig body and is characterized in that at least one welding port is formed in the welding jig body, and the welding port comprises a first welding port and a second welding port which penetrate through the upper surface and the lower surface of the welding jig body; the first welding port is a through hole and directly penetrates through the upper surface and the lower surface of the welding code positioning clamp body; the second welding port comprises a first interface and a second interface, the second interface is arranged in the first interface, and the first interface is a blind hole; the second interface is a through hole arranged in the middle of the first interface;
the welding tool further comprises a base, and the fixing part is arranged on the upper surface of the base; the lower surface of the base is also provided with a pulley.
2. A welding process according to claim 1, wherein: the welding electrode tip of the welding gun in the step (5) comprises a welding part, a joint part and an assembling part; the welding part and the assembling part are arranged at two ends of the connecting part, the welding part is contacted with the workpiece, and the assembling part is assembled with the welding gun.
3. A welding process according to claim 2, wherein: the welding electrode tip is columnar as a whole;
the joint part is columnar; one end of the connecting part connected with the welding part is a first connecting end; the connection end of the connection part and the assembly part is a second connection end;
the welding part is in a table shape, and one end with smaller diameter of the welding part is a welding end; the end with larger diameter of the welding part is a third joint end which is connected with the first joint end of the joint part; the diameter of the third joint end is consistent with that of the joint part; the included angle between the side surface of the welding part and the first joint end is less than 90 degrees; the included angle between the side surface of the welding part and the welding end is less than 90 degrees;
a transition surface is arranged between the side surface of the welding part and the welding end;
the assembling part is in a table shape, and one end of the assembling part is connected with the second connection end;
the end with the smaller diameter of the assembling part is a first assembling end; the end with the larger diameter of the assembling part is a second assembling end, and the included angle between the inclined plane of the assembling part and the second assembling end is less than 60 degrees; the included angle between the inclined plane of the assembling part and the first assembling end is more than 120 degrees;
the welding electrode tip adopts chromium zirconium copper;
the welding electrode head is assembled with the welding gun through the first assembling end.
4. A welding process according to claim 1 or 3, characterized in that: and (5) the welding gun is a special welding gun of the stud welding machine, and the welding gun is connected with the stud welding machine.
5. A welding process according to claim 4, wherein: the welding electrode tip is a positive electrode and is connected with a welding machine through a welding gun; during welding, the welding electrode tip is contacted with a workpiece and discharges after a certain pressure is applied through a built-in spring of the welding gun, and the negative electrode of the process can conduct electricity to the welding workpiece from any direction, so that the welding code is welded on the workpiece.
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| CN202110261378.7A CN112975074B (en) | 2021-03-10 | 2021-03-10 | Welding process |
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| CN202110261378.7A CN112975074B (en) | 2021-03-10 | 2021-03-10 | Welding process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103363665B (en) * | 2012-03-30 | 2016-05-11 | 宁波帅康热水器有限公司 | A kind of interlayer water tank and processing method thereof for water heater |
| CN103017338B (en) * | 2012-05-25 | 2015-03-11 | 黄永伟 | Manufacturing method of dedicated enamel water tank for water heater with sandwich layer |
| JP2015000418A (en) * | 2013-06-17 | 2015-01-05 | 本田技研工業株式会社 | Spot welding device |
| CN103836797B (en) * | 2014-03-06 | 2016-08-24 | 江苏迈能高科技有限公司 | A kind of double sandwich water heater liner and assembling technique thereof |
| CN209407711U (en) * | 2018-12-03 | 2019-09-20 | 浙江希乐工贸有限公司 | Stainless steel cup body craft fast welder |
| CN109551105A (en) * | 2019-01-30 | 2019-04-02 | 嘉兴任享保温科技有限公司 | A kind of vacuum cup liner welder |
| CN211939689U (en) * | 2019-12-26 | 2020-11-17 | 浙江雄泰家居用品股份有限公司 | Welding fixture of double-layer vacuum cup |
| CN212095069U (en) * | 2019-12-26 | 2020-12-08 | 浙江雄泰家居用品股份有限公司 | All-round welding equipment for handle |
| CN112222654A (en) * | 2020-08-31 | 2021-01-15 | 佛山市三高保温水箱有限公司 | Welding process for enamel inner container of water heater |
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Granted publication date: 20220916 |