CN112247500B - Welding method of processing die for electronic equipment - Google Patents
Welding method of processing die for electronic equipment Download PDFInfo
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- CN112247500B CN112247500B CN202011077244.1A CN202011077244A CN112247500B CN 112247500 B CN112247500 B CN 112247500B CN 202011077244 A CN202011077244 A CN 202011077244A CN 112247500 B CN112247500 B CN 112247500B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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Abstract
The invention discloses a method for welding a processing die for electronic equipment, which belongs to the technical field of processing die welding and comprises the following steps: s100: trimming a notch, namely cutting irregular side walls at two ends of the notch of the die by using a cutting machine to form a regular V-shaped groove; s200: finishing corners, namely polishing the inner walls of the two sides of the V-shaped groove by a polisher to make the V-shaped groove smooth and flat, and performing round polishing on the bottom corner of the V-shaped groove by a chamfering machine; s300: polishing to remove rust, namely polishing the outer wall of the die on the outer side of the port of the V-shaped groove, and removing rust on the surface of the die until the metallic luster is exposed; s400: and (4) feeding accessories, namely clamping the V-shaped welding piece matched with the V-shaped groove in the V-shaped groove. Set up the spacing groove on the mould outer wall of V type groove port department, set up the spacing strip of assorted with it on the outer wall of V type weldment both sides respectively, spacing strip card welds again behind the spacing groove, consolidates the limit to the welding in V type weldment and V type groove, prevents that it from droing in the use.
Description
Technical Field
The invention relates to the technical field of processing die welding, in particular to a processing die welding method for electronic equipment.
Background
The die processing refers to the processing of forming and blank making tools, and further comprises a shearing die and a die cutting die. In general, the mold is composed of an upper mold and a lower mold. The steel plate is placed between the upper and lower dies, and the material is formed under the action of a press, and when the press is opened, a workpiece determined by the shape of the die is obtained or corresponding waste materials are removed. Workpieces as small as the electronic connector and as large as the automobile instrument panel can be molded by using the mold. The progressive die is a set of dies capable of automatically moving a processing workpiece from one station to another station and obtaining a formed part at the last station. The die processing technology comprises the following steps: cutting die, blank punching die, compound die, extrusion die, four-slide rail die, progressive die, stamping die, die cutting die and the like.
In the forging industry, the precision and the service life of the die are directly related to the quality, the performance, the production efficiency and the production cost of a forged piece product, so the quality and the service life of the forging die are important points concerned by forging enterprises. The die surfacing repair technology is used for repairing a forging die body to prolong the service life of the die, so that an important means for reducing production cost is generally accepted by the forging industry, however, a welding part is not firm after the existing die is welded, the welding part is easy to loosen and fall off after the die is collided for many times in the moving process, and the die cannot be normally used.
Therefore, we have proposed a method of soldering a working mold for electronic equipment.
Disclosure of Invention
The invention aims to provide a processing die welding method for electronic equipment, which solves the problems in the background by cutting a die notch into a V-shaped groove, arranging a limit groove on the outer wall of the die at the port of the V-shaped groove, respectively arranging limit strips matched with the outer walls on the two sides of a V-shaped welding piece, clamping and embedding the limit strips into the limit groove, then welding, reinforcing and limiting the welding of the V-shaped welding piece and the V-shaped groove, and preventing the V-shaped welding piece from falling off in the using process.
In order to achieve the purpose, the invention provides the following technical scheme: a welding method of a processing die for electronic equipment comprises the following steps:
s100: trimming a notch, namely cutting irregular side walls at two ends of the notch of the die by using a cutting machine to form a regular V-shaped groove;
s200: finishing corners, namely polishing the inner walls of the two sides of the V-shaped groove by a polisher to make the V-shaped groove smooth and flat, and performing round polishing on the bottom corner of the V-shaped groove by a chamfering machine;
s300: polishing to remove rust, namely polishing the outer wall of the die on the outer side of the port of the V-shaped groove, and removing rust on the surface of the die until the metallic luster is exposed;
s400: feeding accessories, namely clamping and placing a V-shaped welding piece matched with the V-shaped groove in the V-shaped groove, and adjusting the angle of the V-shaped welding piece to ensure the installation precision of the V-shaped welding piece;
s500: welding operation, namely welding the inner wall of the V-shaped weldment, which is contacted with the V-shaped groove, by a handheld electric welding machine through a manual tungsten electrode argon arc welding method, and welding a circle along a gap between the V-shaped weldment and the V-shaped groove;
s600: trimming the welding line, polishing and trimming the welding line after the V-shaped welding piece is naturally cooled, and polishing redundant welding beading and welding slag outside the welding line by using a polishing strip to enable the welding line to be flush with the outer surface of the die;
s700: performing rust prevention treatment, namely spraying rust prevention paint on the V-shaped weldment, the weld joint and the polished part of the outer wall of the die, and performing rust prevention treatment to prevent the die from rusting and being damaged again;
s800: pile up the pile up neatly, utilize drying device to carry out fast drying with the anti-rust paint on the mould outer wall, pile up neatly in order to wait to use is piled up to the mould that dries.
Furthermore, the bottom angle of the V-shaped groove is of an arc-shaped structure, and the expansion angle of the V-shaped groove is 45-135 degrees.
Further, the notch trimming of step S100 further includes the following steps:
s110: the die is provided with a V-shaped groove, wherein the outer walls of the die on two sides of the port of the V-shaped groove are respectively and uniformly provided with a limiting groove, and the limiting grooves are of strip-shaped structures;
s120: smooth, the processing of polishing is carried out to the spacing groove 14 inner wall of bar column structure, makes its surface smooth and smooth.
Furthermore, two sets of limiting grooves are formed in each group, the number of each group is four, and the two sets of four limiting grooves are arranged in bilateral symmetry with respect to the V-shaped grooves of the die respectively.
Further, the accessory feeding of step S400 further includes the following steps:
s410: respectively smearing paste-shaped adhesives on the inner walls of the two sides of the V-shaped groove, and uniformly adhering the adhesives to the inner walls of the V-shaped groove after the adhesives are spread;
s420: the limiting strips arranged on the two sides of the V-shaped welding piece are turned outwards, the V-shaped welding piece is aligned to the V-shaped groove after being turned, clamped and installed, and is adhered and fixed through an adhesive;
s430: respectively flattening the outward-turned limiting strips by using a pickaxe hammer to restore the original shapes, and respectively embedding the outward-turned limiting strips in the limiting grooves on the two sides of the V-shaped groove in a clamping manner;
s440: heating the die and the V-shaped weldment to 120-140 ℃, so that the pasty adhesive is completely fluidized and uniformly distributed between the V-shaped weldment and the inner wall of the V-shaped groove, and simultaneously preheating the V-shaped weldment.
Furthermore, the limiting strips are respectively and uniformly arranged on the outer walls of the two sides of the V-shaped welding part and correspond to the limiting grooves, the limiting strips are of strip-shaped structures, and the quantity of the limiting strips is the same as that of the limiting grooves.
Further, the bottom of V type weldment is provided with the chamfer, and the chamfer is the arc structure, and the angle of chamfer is the same with the angle that opens at V type groove base angle.
Further, the shielding gas of the manual argon tungsten-arc welding method is mixed gas, the inert gas occupies 45% of the mixed gas, the carbon dioxide gas occupies 30% of the mixed gas, and the nitrogen gas occupies 25% of the mixed gas.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a processing mold welding method for electronic equipment, which is characterized in that a notch of a mold is modified into a regular V-shaped groove, a limit groove is formed in the outer wall of the mold at the port of the V-shaped groove, limit strips matched with the V-shaped groove are respectively arranged on the outer walls of two sides of a V-shaped welding piece, the limit strips are clamped and embedded in the limit groove and then welded, and the limit strips reinforce and limit the welding of the V-shaped welding piece and the V-shaped groove, so that the V-shaped welding piece is effectively prevented from falling off in the using process.
2. According to the welding method for the processing die for the electronic equipment, the V-shaped groove and the V-shaped welding piece can be designed into different shapes and structures aiming at different damaged parts of the die, so that the welding piece can quickly repair a gap of the die, the damaged die is repaired and used, and the production efficiency is improved.
3. According to the welding method of the processing die for the electronic equipment, the paste-shaped adhesive is coated on the inner wall of the V-shaped groove to adhere the V-shaped welding piece, the V-shaped welding piece is heated together with the die after being installed, so that the paste-shaped adhesive is completely fluidized and is uniformly filled in a gap between the V-shaped welding piece and the die, and meanwhile, the V-shaped welding piece is preheated, so that the temperature increase difficulty during welding is reduced, and the quick welding is convenient to realize.
Drawings
FIG. 1 is an overall flowchart of a process die welding method for an electronic device according to the present invention;
FIG. 2 is a view showing an original butt-joint installation state of V-shaped welding parts of the V-shaped welding part of the present invention;
FIG. 3 is a diagram of the installation state of limiting strips at two sides of a V-shaped welding part after being folded and butted with a V-shaped groove;
FIG. 4 is a view showing a state in which the V-shaped welding member of the present invention is mounted in abutment with the V-shaped groove;
FIG. 5 is a schematic view of a V-shaped weldment according to the present invention;
FIG. 6 is a flowchart illustrating a notch trimming process of the method for welding a processing mold for an electronic device according to the present invention;
fig. 7 is a top flow chart of the parts of the process die welding method for electronic equipment of the present invention.
In the figure: 11. a mold; 12. a V-shaped groove; 13. a V-shaped weldment; 14. a limiting groove; 15. a limiting strip; 16. and (6) chamfering.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-5, a method for welding a processing mold for an electronic device includes the following steps:
s100: trimming a notch, namely cutting irregular side walls at two ends of the notch of the die 11 by using a cutting machine to form a regular V-shaped groove 12;
s200: finishing corners, namely polishing the inner walls of the two sides of the V-shaped groove 12 by a polisher to make the V-shaped groove smooth and flat, and polishing the bottom angle of the V-shaped groove 12 in a rounding way by a chamfering machine, wherein the bottom angle of the V-shaped groove 12 is of an arc structure, and the expansion angle of the bottom angle is 85 degrees;
s300: polishing to remove rust, polishing the outer wall of the die 11 on the outer side of the port of the V-shaped groove 12, and removing rust on the surface of the die until the metallic luster is exposed;
s400: feeding accessories, namely clamping and placing a V-shaped weldment 13 matched with the V-shaped groove 12 in the V-shaped groove 12, and adjusting the angle of the V-shaped weldment 13 to ensure the installation precision of the V-shaped weldment 13;
s500: in the welding operation, a hand-held electric welding machine is used for welding the inner wall of the V-shaped welding part 13, which is in contact with the V-shaped groove 12, by a manual argon tungsten-arc welding method, a circle of welding is carried out along a gap between the two parts, the shielding gas of the manual argon tungsten-arc welding method is mixed gas, the inert gas occupies 45% of the mixed gas, the carbon dioxide occupies 30% of the mixed gas, and the nitrogen occupies 25% of the mixed gas;
s600: trimming the welding line, namely polishing and trimming the welding line after the V-shaped welding piece 13 is naturally cooled, and polishing redundant welding beading and welding slag outside the welding line by using a polishing strip to enable the welding line to be flush with the outer surface of the die 11;
s700: performing rust prevention treatment, namely spraying rust prevention paint on the V-shaped welding piece 13, the welding line and the polished part of the outer wall of the die 11, and performing rust prevention treatment to prevent the die 11 from being rusted and damaged again;
s800: pile up the pile up neatly, utilize drying device to carry out fast drying with the anti-rust paint on the mould 11 outer wall, pile up the pile up neatly in order to wait to use mould 11 that dries.
Referring to fig. 6-7, a method for welding a processing mold for an electronic device, the step S100 of trimming a notch further includes the following steps:
s110: the die comprises a V-shaped groove 12, a die 11 and two groups of limiting grooves 14, wherein the outer walls of the die 11 on two sides of the port of the V-shaped groove 12 are respectively and uniformly provided with the limiting grooves 14, the limiting grooves 14 are of strip-shaped structures, the limiting grooves 14 are respectively provided with two groups, the number of each group is four, and the four limiting grooves 14 of each two groups are respectively arranged in bilateral symmetry with the V-shaped groove 12 of the die 11;
s120: smooth, the processing of polishing is carried out to the spacing groove 14 inner wall of bar column structure, makes its surface smooth and smooth.
A method for welding a processing die for electronic equipment is disclosed, wherein the step S400 of feeding accessories further comprises the following steps:
s410: respectively smearing paste-shaped adhesives on the inner walls of the two sides of the V-shaped groove 12, and uniformly adhering the adhesives to the inner wall of the V-shaped groove 12 after the adhesives are spread;
s420: the limiting strips 15 arranged on two sides of the V-shaped welding piece 13 are turned outwards, the limiting strips 15 are respectively and uniformly arranged on the outer walls of two sides of the V-shaped welding piece 13 and correspond to the limiting grooves 14, the limiting strips are of strip-shaped structures, the number of the limiting strips is the same as that of the limiting grooves 14, after the turning, the V-shaped welding piece 13 is aligned to the V-shaped groove 12, clamped and installed, and is adhered and fixed through an adhesive;
s430: respectively flattening and restoring the outward-turned limiting strips 15 by using a pickaxe hammer, and respectively embedding the outward-turned limiting strips into the limiting grooves 14 on the two sides of the V-shaped groove 12 in a clamping manner, wherein the bottom of the V-shaped welding part 13 is provided with a chamfer 16, the chamfer 16 is of an arc structure, the angle of the chamfer 16 is the same as the opening angle of the bottom angle of the V-shaped groove 12, and the chamfer 16 is matched with the bottom angle of the V-shaped groove 12;
s440: heating the mould 11 and the V-shaped weldment 13 to 125 ℃, so that the pasty adhesive is completely fluidized and uniformly distributed between the V-shaped weldment 13 and the inner wall of the V-shaped groove 12, and simultaneously preheating the V-shaped weldment 13.
Example two
Referring to fig. 1-5, a method for welding a processing mold for an electronic device includes the following steps:
s100: trimming a notch, namely cutting irregular side walls at two ends of the notch of the die 11 by using a cutting machine to form a regular V-shaped groove 12;
s200: finishing corners, namely polishing the inner walls of the two sides of the V-shaped groove 12 by a polisher to make the V-shaped groove smooth and flat, and polishing the bottom angle of the V-shaped groove 12 in a rounding way by a chamfering machine, wherein the bottom angle of the V-shaped groove 12 is of an arc structure, and the expansion angle of the bottom angle is 115 degrees;
s300: polishing to remove rust, polishing the outer wall of the die 11 on the outer side of the port of the V-shaped groove 12, and removing rust on the surface of the die until the metallic luster is exposed;
s400: feeding accessories, namely clamping and placing a V-shaped weldment 13 matched with the V-shaped groove 12 in the V-shaped groove 12, and adjusting the angle of the V-shaped weldment 13 to ensure the installation precision of the V-shaped weldment 13;
s500: in the welding operation, a hand-held electric welding machine is used for welding the inner wall of the V-shaped welding part 13, which is in contact with the V-shaped groove 12, by a manual argon tungsten-arc welding method, a circle of welding is carried out along a gap between the two parts, the shielding gas of the manual argon tungsten-arc welding method is mixed gas, the inert gas occupies 45% of the mixed gas, the carbon dioxide occupies 30% of the mixed gas, and the nitrogen occupies 25% of the mixed gas;
s600: trimming the welding line, namely polishing and trimming the welding line after the V-shaped welding piece 13 is naturally cooled, and polishing redundant welding beading and welding slag outside the welding line by using a polishing strip to enable the welding line to be flush with the outer surface of the die 11;
s700: performing rust prevention treatment, namely spraying rust prevention paint on the V-shaped welding piece 13, the welding line and the polished part of the outer wall of the die 11, and performing rust prevention treatment to prevent the die 11 from being rusted and damaged again;
s800: pile up the pile up neatly, utilize drying device to carry out fast drying with the anti-rust paint on the mould 11 outer wall, pile up the pile up neatly in order to wait to use mould 11 that dries.
Referring to fig. 6-7, a method for welding a processing mold for an electronic device, the step S100 of trimming a notch further includes the following steps:
s110: the die comprises a V-shaped groove 12, a die 11 and two groups of limiting grooves 14, wherein the outer walls of the die 11 on two sides of the port of the V-shaped groove 12 are respectively and uniformly provided with the limiting grooves 14, the limiting grooves 14 are of strip-shaped structures, the limiting grooves 14 are respectively provided with two groups, the number of each group is four, and the four limiting grooves 14 of each two groups are respectively arranged in bilateral symmetry with the V-shaped groove 12 of the die 11;
s120: smooth, the processing of polishing is carried out to the spacing groove 14 inner wall of bar column structure, makes its surface smooth and smooth.
A method for welding a processing die for electronic equipment is disclosed, wherein the step S400 of feeding accessories further comprises the following steps:
s410: respectively smearing paste-shaped adhesives on the inner walls of the two sides of the V-shaped groove 12, and uniformly adhering the adhesives to the inner wall of the V-shaped groove 12 after the adhesives are spread;
s420: the limiting strips 15 arranged on two sides of the V-shaped welding piece 13 are turned outwards, the limiting strips 15 are respectively and uniformly arranged on the outer walls of two sides of the V-shaped welding piece 13 and correspond to the limiting grooves 14, the limiting strips are of strip-shaped structures, the number of the limiting strips is the same as that of the limiting grooves 14, after the turning, the V-shaped welding piece 13 is aligned to the V-shaped groove 12, clamped and installed, and is adhered and fixed through an adhesive;
s430: respectively flattening and restoring the outward-turned limiting strips 15 by using a pickaxe hammer, and respectively embedding the outward-turned limiting strips into the limiting grooves 14 on the two sides of the V-shaped groove 12 in a clamping manner, wherein the bottom of the V-shaped welding part 13 is provided with a chamfer 16, the chamfer 16 is of an arc structure, the angle of the chamfer 16 is the same as the opening angle of the bottom angle of the V-shaped groove 12, and the chamfer 16 is matched with the bottom angle of the V-shaped groove 12;
s440: heating the mould 11 and the V-shaped weldment 13 to 135 ℃, so that the pasty adhesive is completely fluidized and uniformly distributed between the V-shaped weldment 13 and the inner wall of the V-shaped groove 12, and simultaneously preheating the V-shaped weldment 13.
In summary, the following steps: the invention provides a processing die welding method for electronic equipment, which is characterized in that a notch of a die 11 is modified into a regular V-shaped groove 12, a limit groove 14 is formed in the outer wall of the die 11 at the port of the V-shaped groove 12, limit strips 15 matched with the notch are respectively arranged on the outer walls of two sides of a V-shaped welding piece 13, the limit strips 15 are clamped and embedded in the limit groove 14 and then welded, and the limit strips 15 reinforce and limit the welding of the V-shaped welding piece 13 and the V-shaped groove 12, so that the V-shaped welding piece is effectively prevented from falling off in the using process; aiming at different damaged parts of the die 11, the V-shaped groove 12 and the V-shaped welding part 13 can be designed into different shapes and structures, so that the gap of the die 11 can be quickly repaired by the welding part, the damaged die 11 can be repaired, and the production efficiency is improved; paste adhesive is smeared on the inner wall of the V-shaped groove 12 to adhere the V-shaped welding piece 13, the V-shaped welding piece 13 is heated together with the die 11 after being installed, so that the paste adhesive is completely fluidized and is uniformly filled in a gap between the V-shaped welding piece and the die, and meanwhile, the V-shaped welding piece 13 is preheated, the temperature lifting difficulty during welding is reduced, and quick welding is convenient to realize.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A welding method of a processing die for electronic equipment is characterized by comprising the following steps:
s100: trimming a notch, namely cutting irregular side walls at two ends of the notch of the die (11) by using a cutting machine to form a regular V-shaped groove (12);
s200: corner finishing, namely polishing the inner walls of two sides of the V-shaped groove (12) by a polisher to make the V-shaped groove smooth and flat, and performing round polishing on the bottom corner of the V-shaped groove (12) by a chamfering machine;
5300: polishing and derusting, namely polishing the outer wall of the die (11) on the outer side of the port of the V-shaped groove (12) and removing rust on the surface of the die until the metallic luster is exposed;
s400: feeding accessories, namely clamping and placing a V-shaped weldment (13) matched with the V-shaped groove (12) in the V-shaped groove (12), and adjusting the angle of the V-shaped weldment (13) to ensure the installation precision of the V-shaped weldment;
5500: welding operation, handheld electric welding weld the inner wall that V type weldment (13) and V type groove (12) contacted through manual tungsten electrode argon arc welding method, along the gap welding round between the two:
s600: trimming the welding seam, namely polishing and trimming the welding seam after the V-shaped welding part (13) is naturally cooled, and polishing redundant welding beading and welding slag outside the welding seam by using a polishing strip to enable the welding seam to be flush with the outer surface of the die (11);
5700: performing rust prevention treatment, namely spraying rust prevention paint on the V-shaped welding piece (13), the welding line and the polished part of the outer wall of the die (11), and performing rust prevention treatment to prevent the die (11) from rusting and being damaged again;
5800: stacking, namely rapidly drying the anti-rust paint on the outer wall of the die (11) by using a drying device, and stacking the dried die (11) for use;
the notch trimming of step S100 further includes the steps of:
s110: fluting, respectively evenly seted up spacing groove (14) on mould (11) outer wall of V type groove (12) port both sides respectively, and spacing groove (14) all are the bar column structure:
s120: the inner wall of the limiting groove (14) with the strip-shaped structure is polished to ensure that the surface is smooth;
the accessory feeding of the step S400 further includes the steps of:
s410: respectively smearing paste-shaped adhesives on the inner walls of the two sides of the V-shaped groove (12), and uniformly adhering the adhesives on the inner wall of the V-shaped groove (12) after the adhesives are flattened;
s420: the limiting strips (15) arranged on two sides of the V-shaped weldment (13) are turned outwards, the V-shaped weldment (13) is aligned to the V-shaped groove (12) after being turned, clamped and installed, and adhered and fixed through an adhesive;
s430: the outward turning limiting strips (15) are respectively hammered flat and restored to the original shape by using a hammer, and are respectively embedded in the limiting grooves (14) at the two sides of the V-shaped groove (12) in a clamping manner;
s440: heating the mold (11) and the V-shaped weldment (13) to 120-140 ℃, so that the pasty adhesive is completely fluidized and uniformly distributed between the V-shaped weldment (13) and the inner wall of the V-shaped groove (12), and simultaneously preheating the V-shaped weldment (13).
2. The method for welding a working mold for electronic equipment according to claim 1, wherein: the bottom angle of the V-shaped groove (12) is of an arc structure, and the expansion angle of the V-shaped groove is 45-135 degrees.
3. The method for welding a working mold for electronic equipment according to claim 1, wherein: the limiting grooves (14) are respectively provided with two groups, the number of each group is four, and the two groups of four limiting grooves (14) are respectively arranged in bilateral symmetry relative to the V-shaped grooves (12) of the die (11).
4. The method for welding a working mold for electronic equipment according to claim 1, wherein: spacing (15) evenly set up respectively and correspond spacing groove (14) department on V type weldment (13) both sides outer wall, and be the bar column structure, quantity is the same with the quantity of spacing groove (14).
5. The method for welding a working mold for electronic equipment according to claim 1, wherein: the bottom of V type weldment (13) is provided with chamfer (16), and chamfer (16) are the arc structure, and the angle of chamfer (16) is the same with the angle that opens at V type groove (12) base angle.
6. The method for welding a working mold for electronic equipment according to claim 1, wherein: the protective gas of the manual argon tungsten-arc welding method is mixed gas, inert gas occupies 45% of the mixed gas, carbon dioxide gas occupies 30% of the mixed gas, and nitrogen gas occupies 25% of the mixed gas.
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