CN111618498A - Welding device and welding method thereof - Google Patents
Welding device and welding method thereof Download PDFInfo
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- CN111618498A CN111618498A CN202010421165.1A CN202010421165A CN111618498A CN 111618498 A CN111618498 A CN 111618498A CN 202010421165 A CN202010421165 A CN 202010421165A CN 111618498 A CN111618498 A CN 111618498A
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- 238000003466 welding Methods 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the field of machining and discloses a welding device which comprises an outer frame and an inner frame which are sleeved; a welding groove for accommodating a workpiece is formed between the outer frame and the inner frame, and the inner frame comprises a plurality of mounting plates which are integrally connected with each other; a connecting column is arranged between the outer frame and the inner frame; the connecting column penetrates through the workpiece and is in threaded connection with the workpiece; the mounting plate is provided with a connecting hole which is used for being in contact with the connecting column; the connecting hole is provided with an internal thread, and the connecting column is provided with an external thread with the direction opposite to the direction of the internal thread of the connecting hole; the outer frame is provided with a plurality of welding holes for welding workpieces. The invention also discloses a welding method, which effectively solves the problem that the existing multi-workpiece welding operation is troublesome and easy to misplace.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a welding device and a welding method thereof.
Background
Welding is a common connecting means in machining, and the quality of welding is one of the key factors directly determining the quality of products. In welding, a welding gun is generally used to directly perform one-to-one welding on a product. Before welding, the workpiece must be positioned and the weld must be welded to the workpiece. As this is only for welds and workpieces where the position can be fixed. And for a plurality of workpieces which need to be spliced and then welded into a whole, the operation is very complicated at present. A plurality of workpieces need to be welded in pairs in sequence and then spliced, and the operation is very troublesome.
Disclosure of Invention
The invention provides a welding device which is used for solving the problem that the operation of welding a plurality of workpieces needing to be spliced is very troublesome at present.
The technical scheme adopted by the invention for solving the technical problems is as follows: a welding device comprises an outer frame and an inner frame which are sleeved; a welding groove for accommodating a workpiece is formed between the outer frame and the inner frame, and the inner frame comprises a plurality of mounting plates which are integrally connected with each other; a connecting column is arranged between the outer frame and the inner frame; the connecting column penetrates through the workpiece and is in threaded connection with the workpiece; the mounting plate is provided with a connecting hole which is used for being in contact with the connecting column; the connecting hole is provided with an internal thread, and the connecting column is provided with an external thread with the direction opposite to the direction of the internal thread of the connecting hole; the outer frame is provided with a plurality of welding holes for welding workpieces.
The invention has the advantages that:
the outer frame and the inner frame form a welding groove, a plurality of workpieces are spliced and positioned in the welding groove, then adjacent workpieces are welded directly through welding holes, and finally the whole multi-workpiece product is welded. Because the welding groove formed by the inner frame and the outer frame always fixes the positions of a plurality of spliced workpieces in the welding process, the welding process can not be influenced by dislocation in the welding process like the conventional multi-workpiece welding, and the multi-workpiece welding operation can be quickly finished by the welding method.
In addition, the reverse threads of the connecting column and the connecting hole are arranged, so that after welding of multiple workpiece products is completed, the welding groove between the outer frame and the inner frame can be opened by means of the connecting column due to the fact that the length of the connecting column is continuously increased in the rotating process between the forward threads and the reverse threads, multiple workpiece products clamped in the welding process can be easily taken out from the opened welding groove, operation is simple and convenient, and welding time of multiple workpieces can be effectively saved.
Furthermore, one side of the outer frame is provided with an installation opening for placing a plurality of workpieces and the inner frame.
Through the installing port, a plurality of workpieces and the inner frame are convenient to take and place.
Furthermore, the outer frame is provided with guide holes which are in one-to-one correspondence with the connecting holes, the connecting column penetrates through the outer frame through the guide holes, and the guide holes are provided with forward threads matched with the connecting column.
Through the guiding hole, the connecting column can continuously extend into the outer frame in the rotating process, and the length of the connecting column extending into the outer frame is continuously increased.
Further, the cover plate is used for covering the mounting opening.
The cover plate covers the mounting opening, so that the cover plate and the inner frame of the outer frame clamp multiple workpieces in the welding groove together, and the subsequent welding operation is facilitated.
Furthermore, a first screw rod is arranged on the cover plate, and a first mounting hole corresponding to the first screw rod is arranged on the side face of the outer frame.
The cover plate is connected with the outer frame through the first screw rod and the first mounting hole.
Furthermore, a second screw rod is arranged on the cover plate, and a second mounting hole corresponding to the second screw rod is arranged on the side face of the inner frame.
And the cover plate is connected with the inner frame through the second screw rod and the second mounting hole.
Further, the first mounting holes are respectively arranged at four corners of the outer frame.
First mounting hole sets up on four angles of frame, makes things convenient for the stable connection of apron and frame, according to the principle of three points determination one side, distributes not only the processing operation of being convenient for on four angles, also makes the connection atress more balanced.
Further, the second mounting holes are respectively formed in four corners of the inner frame.
The installation stress is more balanced, and the positioning is more accurate.
The invention also provides a welding method, which comprises the following steps:
firstly, wrapping a plurality of workpieces in an inner frame to enable the spliced workpieces and the inner frame to form a whole;
step two, placing the inner frame and the workpiece which form the whole into the outer frame together, and forming a welding groove for placing the workpiece between the outer frame and the inner frame;
step three, connecting the cover plate with the inner frame and the outer frame, and fixedly welding a plurality of workpieces in the groove together with the cover plate, the inner frame and the outer frame;
fourthly, welding the workpiece through the welding hole;
step five, after welding is finished, taking away the cover plate to expose the mounting opening;
step six, sequentially penetrating the connecting column through the outer frame and the workpiece to enable the connecting column to be in contact with the connecting hole; rotating the connecting column, pushing the connecting column towards the connecting hole, and expanding the welding groove between the inner frame and the outer frame and the mounting hole by the connecting column;
and step seven, taking out the welded multi-workpiece product from the expanded welding groove and the expanded mounting opening.
The method has the advantages that:
the method can quickly complete the splicing and welding of multiple workpieces, and the multiple workpieces and the inner frame form a whole, so that the workpieces are spliced firstly, and then the inner frame and the workpieces are placed into the outer frame together. By the method, the problems of dislocation and the like in the welding process are avoided, and the inner frame, the outer frame and the cover plate clamp a plurality of spliced workpieces together, so that the welding holes can be directly used for quickly welding the positions to be welded. More importantly, the connecting holes and the connecting columns can quickly take out welded multi-workpiece products from the welding groove, and the multi-workpiece welding operation efficiency is effectively improved.
The invention also provides a welding method, which comprises the following steps:
step one, an inner frame is placed in an outer frame, and the inner frame and the outer frame form a welding groove together;
secondly, sequentially splicing a plurality of workpieces and placing the workpieces into a welding groove;
step three, connecting the cover plate with the inner frame and the outer frame, and fixedly welding a plurality of workpieces in the groove together with the cover plate, the inner frame and the outer frame;
fourthly, welding the workpiece through the welding hole;
step five, after welding is finished, taking away the cover plate to expose the mounting opening;
step six, sequentially penetrating the connecting column through the outer frame and the workpiece to enable the connecting column to be in contact with the connecting hole; rotating the connecting column, pushing the connecting column towards the connecting hole, and expanding the welding groove between the inner frame and the outer frame and the mounting hole by the connecting column;
and step seven, taking out the welded multi-workpiece product from the expanded welding groove and the expanded mounting opening.
The method has the advantages that:
according to the method, the splicing and welding of multiple workpieces can be completed quickly, the welding grooves are constructed through the inner frame and the outer frame, then the multiple workpieces are placed in the welding grooves in sequence, and the splicing is completed in the welding grooves. By the method, the problems of dislocation and the like in the welding process are avoided, and the inner frame, the outer frame and the cover plate clamp a plurality of spliced workpieces together, so that the welding holes can be directly used for quickly welding the positions to be welded. More importantly, the connecting holes and the connecting columns can quickly take out welded multi-workpiece products from the welding groove, and the multi-workpiece welding operation efficiency is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the welding fixture comprises an outer frame 1, welding holes 2, a workpiece 3, an inner frame 4, a connecting column 5, a first mounting hole 6 and a second mounting hole 7.
Example one
The embodiment is basically as shown in the attached figure 1: the welding device comprises an outer frame 1 used for wrapping at least three workpieces 3 which are contacted with each other, wherein the outer frame 1 is a rectangular frame structure with a mounting opening at one end, and the outer frame 1 comprises an upper plate, a lower plate, a left plate, a right plate and a rear plate which are integrally connected with each other. An inner frame 4 which is used for being wrapped by at least three workpieces 3 which are contacted with each other is arranged in the outer frame 1; the inner frame 4 comprises an upper mounting plate, a lower mounting plate, a left mounting plate, a right mounting plate and a rear mounting plate which are integrally formed; the right opposite position of the back plate of the outer frame 1 and the back mounting plate of the inner frame 4 is a mounting opening.
Each plate of the outer frame 1 is provided with a plurality of welding holes 2 for welding workpieces 3 and connecting columns 5 after the welding is finished. The welding holes 2 in this embodiment are not only passages through which a welding gun passes for welding, but also connecting passages through which the connecting posts 5 pass through the outer frame 1.
Each mounting panel is a flat plate of a rectangular structure, each mounting panel corresponds each welding hole 2 and all opens there is the connecting hole, and the connecting hole has the internal thread. The workpiece 3 placed in the welding groove after assembly is provided with through holes corresponding to the welding holes 2 and the connecting holes. The welding holes 2 are larger than the connecting holes and the through holes, one welding hole 2 can simultaneously correspond to a plurality of connecting holes and through holes, and the connecting holes and the through holes are arranged in a one-to-one correspondence mode.
The end part of the connecting column 5 is provided with an external thread, and the through hole and the connecting hole are internally provided with internal threads, wherein the internal thread of the through hole is matched with the external thread of the connecting column 5 to form a positive thread, and the connecting column 5 can penetrate through the workpiece 3 to be pushed towards the direction of the inner frame 4 in the positive rotation process; the inner thread of the connecting hole is not matched with the outer thread of the connecting column 5 to form a reverse thread. The screw thread direction on the spliced pole 5 is opposite with the screw thread direction of connecting hole, make spliced pole 5 can not stretch into in the connecting hole with it threaded connection, on the contrary because the screw thread direction is opposite, when rotating spliced pole 5, can make the spliced pole 5 part that stretches into between work piece 3 and the inside casing 4 constantly lengthen, make spliced pole 5 strut the welding groove, strut the installing port greatly, make work piece 3 and inside casing 4 part each other, be convenient for take out inside casing 4, then take away spliced pole 5, take out the 3 products of multiplex spare that will weld the completion.
Four first mounting holes 6 are formed at four corner positions on one side of the mounting opening of the outer frame 1. Two second mounting holes 7 are formed in the positions, on the same side of the inner frame 4, of the middle positions of the left mounting plate and the right mounting plate.
The mounting opening is connected with a cover plate used for covering the mounting opening. The mounting plate is connected with four first screw rods corresponding to the first mounting holes 6 respectively, and the mounting plate is connected with two second screw rods corresponding to the second mounting holes 7 respectively. The cover plate is connected with the outer frame 1 through a first screw rod and a first mounting hole 6, and the cover plate is connected with the inner frame 4 through a second screw rod and a second mounting hole 7.
When the multi-workpiece 3 is welded by the structure, the following steps are adopted:
step S1, wrapping a plurality of workpieces 3 to be welded on an inner frame 4, splicing the workpieces 3 to be welded into a whole, putting the spliced workpieces 3 and a mounting plate into an outer frame 1 from a mounting port, and positioning the workpieces 3 in a welding groove formed by the mounting plate and the outer frame 1;
step S2, first, the second screw rod on the cover plate is connected with the second mounting hole 7 on the inner frame 4, so that the cover plate is connected with the inner frame 4; then, connecting a first screw rod on the cover plate with a first mounting hole 6 on the outer frame 1 to connect the cover plate with the outer frame 1, so that the cover plate, the outer frame 1 and the inner frame 4 can fix a plurality of workpieces 3 which are not welded and are spliced;
step S3, welding the joint of a plurality of workpieces 3 through the welding holes 2 by a welding gun through the welding holes 2 by the welding holes 2 opened in each direction of the outer frame 1;
step S4, after welding, taking down the first screw and the second screw, and taking the cover plate away to expose the mounting opening;
step S5, enabling the connecting column 5 to penetrate through the welding hole 2 and the through hole in the workpiece 3 to be abutted against the connecting hole of the mounting plate, rotating the connecting column 5, enabling the connecting column 5 to be abutted against the reverse threads of the connecting hole, enabling the threads of the through hole to be the same as the threads of the connecting column 5 in direction, enabling the threads to be matched with the threads of the connecting column 5, and enabling the length of the connecting column 5 extending into the workpiece 3 to be more and more, so that the workpiece 3 and the inner frame 4 are not;
step S6, taking out the wrapped inner frame 4 from the mounting opening;
and step S7, the connecting column 5 is taken down, and the welded multi-workpiece 3 product is taken out from the mounting opening.
Example two
As shown in fig. 2, in this embodiment, the corresponding connection holes on each side surface of the outer frame 1 are provided with guide holes corresponding to the connection holes one to one, and only two corresponding guide holes on the upper plate and the upper mounting plate are shown in fig. 2. In the present embodiment, the welding holes 2 are only used for welding and are no longer used for the connecting posts 5 to pass through. The guide hole has the same internal thread as the through hole in the workpiece 3, which can be matched to the connecting stud 5. After the welding is accomplished, spliced pole 5 passes guiding hole and through-hole in proper order, stretches into between work piece 3 and the inside casing 4, struts the welding groove, and the convenient contact position that can expose each work piece 3 each other and splice through welding hole 2 is convenient for make the welding rifle weld through welding hole 2, simultaneously, is convenient for let spliced pole 5 help many work pieces 3 products take out from the welding groove fast through the guiding hole.
EXAMPLE III
In this embodiment, the welding hole 2 is an elliptical hole, and the edge of the welding hole 2 is a smooth surface, so as to avoid hurting hands during welding.
Example four
In this embodiment, when the welding device is used to weld the multiple workpieces 3, the following method is used:
step L1, placing the inner frame 4 into the outer frame 1, so that the length of the left mounting plate of the inner frame 4 from the left plate of the outer frame 1 is equal to the length of the right mounting plate of the inner frame 4 from the right plate of the outer frame 1, and the inner frame 4 and the outer frame 1 form a welding groove together;
step L2, sequentially splicing a plurality of workpieces 3 and placing the workpieces in a welding groove;
step L3, connecting the cover plate with the inner frame 4 through the second screw and the second mounting hole 7, and connecting the cover plate with the outer frame 1 through the first screw and the first mounting hole 6, so that the cover plate, the inner frame 4 and the outer frame 1 are fixedly welded with a plurality of workpieces 3 in the groove;
step L4, welding the workpiece 3 through the welding hole 2 using a welding tool such as a welding gun;
l5, after the welding is finished, taking away the cover plate to expose the mounting opening by reversely rotating the first screw rod and the second screw rod;
step L6, passing the connecting column 5 through the outer frame 1 and the workpiece 3 in sequence to make the connecting column 5 contact with the connecting hole; the connecting column 5 is rotated to push towards the direction of the connecting hole, and the connecting column 5 props up a welding groove between the inner frame 4 and the outer frame 1 and enlarges an installation opening;
and L7, taking the inner frame 4 out of the expanded welding groove and the expanded mounting opening, taking the connecting column 5 down, and taking the welded multi-workpiece 3 product out of the welding groove.
EXAMPLE five
In this embodiment, inside casing 4 is for possessing certain elasticity and rigid rubber simultaneously and making, before spliced pole 5 did not stretch into, inside casing 4 presss from both sides tightly a plurality of work pieces 3 with frame 1 together, after spliced pole 5 stretched into, spliced pole 5 was when strutting the welding groove, dwindle inside casing 4 extrusion, only spliced pole 5 and inside casing 4 counterbalance contact, because the space between work piece 3 and the inside casing 4, compare in the face contact, the welding groove is only similar to the point contact after being strutted, can make things convenient for inside casing 4 to take out fast. After the inner frame 4 is taken out, the connecting column 5 is taken down, and the welded multi-workpiece 3 products can be easily and rapidly taken out in the space in the outer frame 1 at the moment without damage.
EXAMPLE five
In this embodiment, four first mounting holes 6 are formed at four corner positions on one side of the mounting opening of the outer frame 1. Four second mounting holes 7 are also formed at four corner positions on the same side of the inner frame 4. Due to the structural arrangement, the cover plate can be uniformly connected to the mounting port under stress, and unnecessary deformation of the welding groove caused by connection of the cover plate is avoided.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A welding device is characterized by comprising an outer frame and an inner frame which are sleeved; a welding groove for accommodating a workpiece is formed between the outer frame and the inner frame, and the inner frame comprises a plurality of mounting plates which are integrally connected with each other; a connecting column is arranged between the outer frame and the inner frame; the connecting column penetrates through the workpiece and is in threaded connection with the workpiece; the mounting plate is provided with a connecting hole which is used for being in contact with the connecting column; the connecting hole is provided with an internal thread, and the connecting column is provided with an external thread with the direction opposite to the direction of the internal thread of the connecting hole; the outer frame is provided with a plurality of welding holes for welding workpieces.
2. The welding apparatus of claim 1, wherein one side of the outer frame has a mounting opening for receiving a plurality of work pieces and the inner frame.
3. The welding device according to claim 1, wherein the outer frame is provided with guide holes corresponding to the connecting holes one to one, the connecting column penetrates through the outer frame through the guide holes, and the guide holes are provided with positive threads matched with the connecting column.
4. The welding device of claim 2, further comprising a cover plate for covering the mounting opening.
5. The welding device according to claim 4, wherein a first screw is provided on the cover plate, and a first mounting hole corresponding to the first screw is provided on a side surface of the outer frame.
6. The welding device according to claim 4, wherein a second screw rod is arranged on the cover plate, and a second mounting hole corresponding to the second screw rod is arranged on the side surface of the inner frame.
7. The welding device according to claim 5, wherein the first mounting holes are respectively provided at four corners of the outer frame.
8. The welding device according to claim 6, wherein the second mounting holes are provided at four corners of the inner frame, respectively.
9. A method of welding, comprising the steps of:
firstly, wrapping a plurality of workpieces in an inner frame to enable the spliced workpieces and the inner frame to form a whole;
step two, placing the inner frame and the workpiece which form the whole into the outer frame together, and forming a welding groove for placing the workpiece between the outer frame and the inner frame;
step three, connecting the cover plate with the inner frame and the outer frame, and fixedly welding a plurality of workpieces in the groove together with the cover plate, the inner frame and the outer frame;
fourthly, welding the workpiece through the welding hole;
step five, after welding is finished, taking away the cover plate to expose the mounting opening;
step six, sequentially penetrating the connecting column through the outer frame and the workpiece to enable the connecting column to be in contact with the connecting hole; rotating the connecting column, pushing the connecting column towards the connecting hole, and expanding the welding groove between the inner frame and the outer frame and the mounting hole by the connecting column;
and step seven, taking out the welded multi-workpiece product from the expanded welding groove and the expanded mounting opening.
10. A method of welding, comprising the steps of:
step one, an inner frame is placed in an outer frame, and the inner frame and the outer frame form a welding groove together;
secondly, sequentially splicing a plurality of workpieces and placing the workpieces into a welding groove;
step three, connecting the cover plate with the inner frame and the outer frame, and fixedly welding a plurality of workpieces in the groove together with the cover plate, the inner frame and the outer frame;
fourthly, welding the workpiece through the welding hole;
step five, after welding is finished, taking away the cover plate to expose the mounting opening;
step six, sequentially penetrating the connecting column through the outer frame and the workpiece to enable the connecting column to be in contact with the connecting hole; rotating the connecting column, pushing the connecting column towards the connecting hole, and expanding the welding groove between the inner frame and the outer frame and the mounting hole by the connecting column;
and step seven, taking out the welded multi-workpiece product from the expanded welding groove and the expanded mounting opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010421165.1A CN111618498B (en) | 2020-05-18 | 2020-05-18 | Welding device and welding method thereof |
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|---|---|---|---|
| CN202010421165.1A CN111618498B (en) | 2020-05-18 | 2020-05-18 | Welding device and welding method thereof |
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| CN111618498A true CN111618498A (en) | 2020-09-04 |
| CN111618498B CN111618498B (en) | 2022-03-11 |
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