CN110900063B - Automatic clamping and welding fixture suitable for multi-specification smoke collecting hood and with correction function - Google Patents
Automatic clamping and welding fixture suitable for multi-specification smoke collecting hood and with correction function Download PDFInfo
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- CN110900063B CN110900063B CN201811080415.9A CN201811080415A CN110900063B CN 110900063 B CN110900063 B CN 110900063B CN 201811080415 A CN201811080415 A CN 201811080415A CN 110900063 B CN110900063 B CN 110900063B
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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 to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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Abstract
The invention relates to an automatic clamping welding fixture which is suitable for a multi-specification smoke collecting hood and has a correction function, and the automatic clamping welding fixture comprises a platform for placing a smoke collecting hood with a front folded edge, a left folded edge and a right folded edge; the method is characterized in that: the platform consists of a main bedplate and a side bedplate, and the bottom of the main bedplate is provided with a driving structure for driving the side bedplate to slide left and right; the main bedplate is provided with a left rear pressing block, a left pressing block and a front middle baffle plate, the left rear pressing block is driven by a left rear cylinder, the left pressing block is used for contacting with the side face of the left folded edge, and the front middle baffle plate is fixed at the front part of the main bedplate and used for contacting with the middle part of the front folded edge; a right rear pressing block and a right pressing block are arranged on the side platen, the rear pressing block is driven by a right rear cylinder, and the right pressing block is driven by a right cylinder; an upper cylinder is arranged above the main bedplate, and a correcting press block is fixed on a piston rod of the upper cylinder. This anchor clamps can weld the collection petticoat pipe of different specifications, can also guarantee the roughness of the preceding hem of welding back collection petticoat pipe in addition, do benefit to the later stage assembly.
Description
Technical Field
The invention relates to welding auxiliary equipment, in particular to an automatic clamping and welding clamp which is suitable for a multi-specification exhaust fume collecting hood and has a correction function.
Background
The fume collecting hood is a main part of a range hood and is generally formed by stamping, bending and welding a thin steel plate, the front edge, the left edge and the right edge of the fume collecting hood are respectively provided with a front folded edge, a left folded edge and a right folded edge which are turned upwards, and the parts of the front folded edge, the left folded edge and the right folded edge which are contacted with each other are fixed together by laser welding. For example, a smoke collecting hood is disclosed in the patent of Chinese utility model with the patent number ZL201320636234.6 (publication number CN203628752U) 'A seamless welding range hood'. The quality of the welding directly influences the quality of the smoke collecting hood, and the smoke collecting hood is made of thin steel plates, and the front folding edge, the left folding edge and the right folding edge are long and narrow, so that welding deformation is easy to generate if the positioning is not good during welding, and the straightness and the flatness of the front folding edge, the left folding edge and the right folding edge are not ideal, so that the quality of the smoke collecting hood is influenced.
For example, a welding fixture disclosed in the chinese utility model patent No. zl201620503984.x (publication No. CN205927606U) applied by the present applicant, which comprises a platform for placing a fume collecting hood with a folded edge, and a positioning structure for positioning the fume collecting hood on the platform; the positioning structure comprises two left check blocks positioned on the left side of the platform, two right check blocks positioned on the right side of the platform, and two rear check blocks positioned on the rear side of the platform, wherein the two left check blocks are in contact with the left side of the smoke collecting hood placed on the platform, the two right check blocks are in contact with the right side of the smoke collecting hood placed on the platform, the two rear check blocks are in contact with the rear side of the smoke collecting hood placed on the platform, a left pressure rod for pressing above the smoke collecting hood is arranged on the left check block positioned in the front in a rotating mode, and a right pressure rod for pressing above the smoke collecting hood is arranged on the right check block positioned in the front in a rotating mode.
Because each dog of location structure is fixed relative to the platform position, so can only be fit for fixing a size specification's collection petticoat pipe and fix a position, if meet the collection petticoat pipe of different size specifications, can only carry out the adaptability adjustment to each dog position, consequently it is very inconvenient to use. Because of preceding hem length is the longest, and the middle part has the hole of a fretwork, preceding hem middle part intensity is lower, so the collection petticoat pipe is after stamping forming accomplishes, and preceding hem exists certain inside or outside crookedness, consequently can be in two enhancement strips of welding between preceding hem and collection petticoat pipe top surface to the connecting piece that is L shape is in collection petticoat pipe both sides welding, in order to guarantee collection petticoat pipe intensity, must guarantee before strengthening the strip welding that preceding hem middle part is in accurate position. If the front edgefold is welded on the premise of bending, the manufactured smoke collecting hood has a gap with an over-tolerance between the smoke collecting hood and a top plate of the range hood during assembly, the gap is uneven, and the gap is difficult to adjust after the assembly is finished.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic clamping and welding clamp which is suitable for a plurality of specifications of smoke collecting hoods and has a correction function aiming at the current situation of the prior art, the clamp can be used for welding smoke collecting hoods with different specifications, and in addition, the flatness of the front folded edge of the welded smoke collecting hood can be ensured, so that the later assembly is facilitated.
The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic clamping welding fixture suitable for a multi-specification smoke collecting hood and having a correction function comprises a platform for placing the smoke collecting hood with a front folded edge, a left folded edge and a right folded edge; the method is characterized in that: the platform consists of a main bedplate and a side bedplate, wherein the upper tabletops of the main bedplate and the side bedplate are positioned on the same horizontal plane, the side bedplate is arranged outside the right side of the main bedplate through a slide rail structure, and the bottom of the main bedplate is provided with a driving structure for driving the side bedplate to slide left and right relative to the main bedplate; the main table plate is provided with a left rear pressing block, a left pressing block and a front middle baffle plate, the left rear pressing block can be driven by a left rear cylinder to press or be away from the rear surface of the left folded edge, the left pressing block is used for being in contact with the side surface of the left folded edge, and the front middle baffle plate is fixed at the front part of the main table plate and is used for being in contact with the middle part of the front folded edge; the side platen is provided with a right rear pressing block and a right pressing block, the right rear pressing block can be pressed by a right rear cylinder or is far away from the back of the right folded edge, and the right pressing block can be pressed by a right cylinder or is far away from the side surface of the right folded edge; an upper cylinder which is gradually and downwards inclined from back to front is arranged above the main bedplate, a correcting pressing block is fixed on a piston rod of the upper cylinder, and when the correcting pressing block is driven by the upper cylinder to press the front folded edge forwards on the front middle baffle plate, the flatness of the front folded edge is corrected.
Preferably, the drive mechanism is a master cylinder, a cylinder body of the master cylinder is fixed to a bottom surface of the master platen, a driving block is fixed to a bottom surface of the side platen, and a piston rod of the master cylinder is fixed to the driving block. The air cylinder is adopted as a driving structure, the structure is simple, the layout and automatic control are facilitated, the air cylinder is arranged at the bottom of the platform, the area of the platform cannot be increased, and the driving point of the driving structure is the middle part of the side platen, so that the driving is more stable. If the driving structure is arranged on the top surface of the platform, the position of the platform for placing the smoke collecting hood can be avoided, and the platform needs to be large and unreasonable.
Preferably, a left connecting seat is fixed on the bottom surface of the side platen, the middle part of the right pressing block is hinged to the left connecting seat, the cylinder body of the right cylinder is hinged to the bottom of the side platen, the piston rod of the right cylinder is hinged to the lower part of the right pressing block, and the upper part of the right pressing block can press the side surface of the right folded edge after being turned inwards. The right side compact heap adopts the mode of upset to compress tightly, and sets up the cylinder in the platform below, can let structural configuration more compact, can reduce the platform area.
Alternatively, the left pressing block is driven by a left air cylinder to press or be far away from the side surface of the left folded edge. Of course, the left compression block can also be fixed on the main bedplate.
Preferably, a right connecting seat is fixed on the bottom surface of the main bedplate, the middle part of the left pressing block is hinged to the right connecting seat, a cylinder body of the left air cylinder is hinged to the bottom of the main bedplate, a piston rod of the left air cylinder is hinged to the lower part of the left pressing block, and the upper part of the left pressing block can press the side surface of the left folded edge after being turned inwards.
For the better preceding spacing to the collection petticoat pipe, the front portion of above-mentioned main platen still is fixed with preceding left side baffle, the front portion of side platen is fixed with preceding right side baffle, preceding left side baffle and preceding right side baffle are used for contacting with the left part and the right part of preceding hem respectively.
The improved structure is characterized in that two mounting plates which are arranged at intervals are fixed on the bottom surface of the main bedplate, the right side of the main bedplate is exposed out of the side portion of each mounting plate, a sliding rail in the sliding rail structure is fixed on the mounting plates, and a sliding block in the sliding rail structure is fixed at the bottom of the side bedplate. The installation plate and the side platen are arranged at intervals from top to bottom, so that a sliding rail structure is convenient to arrange, and the top surfaces of the main platen and the side platen can be ensured to be in a flush position.
The main bedplate is fixed with a mounting rack, the top wall of the mounting rack extends to the upper part of the main bedplate, the front part of the top wall of the mounting rack is provided with a fixing plate which is arranged forwards and upwards in an inclined way, and the cylinder body of the upper cylinder is fixed on the fixing plate.
Compared with the prior art, the invention has the advantages that: the platform consists of a main bedplate and a side bedplate, the bottom of the main bedplate is provided with a driving structure for driving the side bedplate to slide left and right relative to the main bedplate, the side bedplate is provided with a right rear pressing block and a right pressing block, the right rear pressing block is driven by a right rear cylinder to be pressed or to be away from the back of a right flanging, the right pressing block is driven by a right side cylinder to be pressed or to be away from the side surface of the right flanging, so that the corresponding flanging of the smoke collecting hood placed on the side bedplate can be pressed by the corresponding pressing block, the smoke collecting hoods with different length sizes can be adapted by adjusting the relative distance between the side bedplate and the main bedplate, and the back cylinder drives the rear pressing block to move back and forth to float so as to adapt to smoke collecting hoods with different widths; therefore, the clamp can be suitable for the smoke collecting hoods with various specifications. In addition, the cylinder drives the correcting block to move so as to realize correction, during correction, the upper cylinder drives the correcting block to compress the front folded edge forwards on the front middle baffle plate, so that the correction of the flatness of the front folded edge is realized, the flatness of the front folded edge of the smoke collecting hood after welding is guaranteed, and later-stage assembly is facilitated.
Drawings
FIG. 1 is a schematic perspective view (initial state) of an embodiment of the present invention;
fig. 2 is a schematic perspective view of a first embodiment of the invention (with the hood placed on);
fig. 3 is a schematic perspective view of a second embodiment of the invention (with the hood attached);
FIG. 4 is a schematic perspective view of an embodiment of the present invention (with the exhaust fume collecting hood on and the cylinders operating);
FIG. 5 is a schematic perspective view of the second embodiment of the present invention (with the exhaust hood on and the cylinders operating);
fig. 6 is a schematic perspective view of a smoke collection cover according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, a preferred embodiment of the present invention is shown.
An automatic clamping and welding fixture suitable for a multi-specification smoke collecting hood and having a correction function comprises a platform 2 for placing a smoke collecting hood 1 with a front folded edge 11, a left folded edge 12 and a right folded edge 13; the fixture is used for welding two reinforcing strips 10 between the front folded edge 11 and the top surface of the exhaust fume collecting hood, and welding L-shaped connecting pieces 14 on two sides of the exhaust fume collecting hood to ensure the strength of the exhaust fume collecting hood 1.
The platform 2 is composed of a main bedplate 21 and a side bedplate 22, the upper tabletops of the main bedplate 21 and the side bedplate 22 are located on the same horizontal plane, the side bedplate 22 is installed outside the right side of the main bedplate 21 through a slide rail structure, two installation plates 7 which are arranged at intervals front and back are fixed on the bottom surface of the main bedplate 21, the right side of the main bedplate 21 is exposed out of the side parts of the installation plates 7, a slide rail 8a in the slide rail structure is fixed on the installation plates 7, and a slide block 8b in the slide rail structure is fixed at the bottom of the side bedplate 22. The bottom of the main bedplate 21 is provided with a driving structure for driving the side bedplate 22 to slide left and right relative to the main bedplate 21; the driving structure is a main cylinder 5f, the cylinder body of the main cylinder 5f is fixed on the bottom surface of the main bedplate 21, the bottom surface of the side bedplate 22 is fixed with a driving block 221, and the piston rod of the main cylinder 5f is fixed on the driving block 221.
A left rear pressing block 3a, a left pressing block 3b and a front middle baffle 4a are arranged on the main bedplate 21, the left rear pressing block 3a can be pressed or far away from the rear surface of the left folded edge 12 by a left rear cylinder driving 5a, the left pressing block 3b is used for contacting with the side surface of the left folded edge 12, and the front middle baffle 4a is fixed at the front part of the main bedplate 21 and is used for contacting with the middle part of the front folded edge 11; the left pressing block 3b is driven by a left air cylinder 5b to press or move away from the side of the left folded edge 12. The bottom surface of the main bedplate 21 is fixed with a right connecting seat 211, the middle part of the left pressing block 3b is hinged on the right connecting seat 211, the cylinder body of the left cylinder 5b is hinged at the bottom of the main bedplate, the piston rod of the left cylinder 5b is hinged at the lower part of the left pressing block 3b, and the upper part of the left pressing block 3b can press the side surface of the left folded edge 12 after being turned inwards. A front left baffle 4b is fixed at the front part of the main bedplate 21, a front right baffle 4c is fixed at the front part of the side bedplate 22, and the front left baffle 4b and the front right baffle 4c are respectively used for contacting with the left part and the right part of the front folded edge 11.
The side platen 22 is provided with a right rear pressing block 3c and a right pressing block 3d, the right rear pressing block 3c can be driven by a right rear cylinder 5c to press or be away from the back of the right folded edge 13, and the right pressing block 3d can be driven by a right cylinder 5d to press or be away from the side face of the right folded edge 13; the bottom surface of the side bedplate 22 is fixed with a left connecting seat 222, the middle part of the right pressing block 3d is hinged on the left connecting seat 222, the cylinder body of the right cylinder 5d is hinged at the bottom of the side bedplate 22, the piston rod of the right cylinder 5d is hinged at the lower part of the right pressing block 3d, and the upper part of the right pressing block 3d can press the side surface of the right folded edge 13 after being turned inwards.
An upper air cylinder 5e which is gradually inclined downwards from back to front is arranged above the main bedplate 21, a correcting press block 6 is fixed on a piston rod of the upper air cylinder 5e, and when correcting, the upper air cylinder 5e drives the correcting press block 6 to press the front folded edge 11 forwards on the front middle baffle 4a, so that the correction of the flatness of the front folded edge 11 is realized. The main bedplate 21 is fixed with a mounting rack 9, the top wall of the mounting rack 9 extends to the upper part of the main bedplate 21, the front part of the top wall of the mounting rack 9 is provided with a fixing plate 91 which is arranged forwards and upwards in an inclined way, and the cylinder body of the upper cylinder 5e is fixed on the fixing plate 91.
Each cylinder in this embodiment is a spacing cylinder.
The platform 2 consists of a main platen 21 and a side platen 22, a main cylinder 5f for driving the side platen 22 to slide left and right relative to the main platen 21 is arranged at the bottom of the main platen 21, a right rear pressing block 3c and a right pressing block 3d are arranged on the side platen 22, the right rear pressing block 3c is driven by a right rear cylinder 5c to be pressed or far away from the back of the right folded edge 13, the right pressing block 3d is driven by a right cylinder 5d to be pressed or far away from the side surface of the right folded edge 13, no matter how the position of the side platen 22 changes, the corresponding folded edge of the smoke collecting hood 1 placed on the side platen 22 can be always pressed by the corresponding pressing block, the smoke collecting hoods with different length and size can be adapted by adjusting the relative distance between the side platen 22 and the main platen 21, and the back cylinder drives the rear pressing block to move back and forth to adapt to smoke collecting hoods with different widths; therefore, the clamp can be suitable for the smoke collecting hoods with various specifications. In addition, the cylinder drives the correcting block 6 to move so as to realize correction, during correction, the upper cylinder 5e drives the correcting block 6 to press the front folded edge 11 forwards on the front middle baffle 4a, so that the correction of the flatness of the front folded edge 11 is realized, the flatness of the front folded edge 11 of the smoke collecting hood after welding is ensured, and later-stage assembly is facilitated.
It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (2)
1. An automatic clamping and welding fixture suitable for a multi-specification smoke collecting hood and having a correction function comprises a platform (2) for placing a smoke collecting hood (1) with a front folded edge (11), a left folded edge (12) and a right folded edge (13); the method is characterized in that:
the platform (2) consists of a main bedplate (21) and side bedplates (22), the upper tabletops of the main bedplate (21) and the side bedplates (22) are positioned on the same horizontal plane, the side bedplates (22) are installed outside the right side of the main bedplate (21) through a slide rail structure, and the bottom of the main bedplate (21) is provided with a driving structure for driving the side bedplates (22) to slide left and right relative to the main bedplate (21);
the main bedplate (21) is provided with a left rear pressing block (3a), a left pressing block (3b) and a front middle baffle (4a), the left rear pressing block (3a) is driven by a left rear cylinder (5a) to press or be far away from the rear surface of the left folded edge (12), the left pressing block (3b) is used for contacting with the side surface of the left folded edge (12), and the front middle baffle (4a) is fixed at the front part of the main bedplate (21) and used for contacting with the middle part of the front folded edge (11);
a right rear pressing block (3c) and a right pressing block (3d) are arranged on the side platen (22), the right rear pressing block (3c) can be driven by a right rear cylinder (5c) to press or be away from the back of the right folding edge (13), and the right pressing block (3d) can be driven by a right cylinder (5d) to press or be away from the side face of the right folding edge (13);
an upper cylinder (5e) which is gradually inclined downwards from back to front is arranged above the main bedplate (21), a correcting pressing block (6) is fixed on a piston rod of the upper cylinder (5e), and when correcting is performed, the upper cylinder (5e) drives the correcting pressing block (6) to press the front folded edge (11) forwards on the front middle baffle (4a), so that the correction of the flatness of the front folded edge (11) is realized;
two mounting plates (7) which are arranged at intervals in the front-back direction are fixed on the bottom surface of the main bedplate (21), the right side of the main bedplate (21) is exposed out of the side parts of the mounting plates (7), a slide rail (8a) in the slide rail structure is fixed on the mounting plates (7), and a slide block (8b) in the slide rail structure is fixed at the bottom of the side bedplate (22);
a left connecting seat (222) is fixed on the bottom surface of the side platen (22), the middle part of the right pressing block (3d) is hinged to the left connecting seat (222), the cylinder body of the right cylinder (5d) is hinged to the bottom of the side platen (22), the piston rod of the right cylinder (5d) is hinged to the lower part of the right pressing block (3d), and the upper part of the right pressing block (3d) can press the side surface of the right folded edge (13) after being turned inwards;
the driving structure is a main cylinder (5f), the cylinder body of the main cylinder (5f) is fixed on the bottom surface of the main bedplate (21), a driving block (221) is fixed on the bottom surface of the side bedplate (22), and a piston rod of the main cylinder (5f) is fixed on the driving block (221);
a right connecting seat (211) is fixed on the bottom surface of the main bedplate (21), the middle part of the left pressing block (3b) is hinged to the right connecting seat (211), the cylinder body of the left cylinder (5b) is hinged to the bottom of the main bedplate (21), the piston rod of the left cylinder (5b) is hinged to the lower part of the left pressing block (3b), and the upper part of the left pressing block (3b) can press the side surface of the left folded edge (12) after being turned inwards;
a front left baffle (4b) is further fixed to the front portion of the main bedplate (21), a front right baffle (4c) is fixed to the front portion of the side bedplate (22), and the front left baffle (4b) and the front right baffle (4c) are respectively used for being in contact with the left portion and the right portion of the front folded edge (11);
the main bedplate (21) is fixed with a mounting rack (9), the top wall of the mounting rack (9) extends to the upper part of the main bedplate (21), the front part of the top wall of the mounting rack (9) is provided with a fixing plate (91) which is arranged forwards and upwards in an inclined mode, and the cylinder body of the upper cylinder (5e) is fixed on the fixing plate (91).
2. The automatic clamping and welding fixture suitable for the multi-specification smoke collecting hood and having the correcting function according to claim 1 is characterized in that: the left pressing block (3b) is driven by a left air cylinder (5b) to press or be far away from the side surface of the left folding edge (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811080415.9A CN110900063B (en) | 2018-09-17 | 2018-09-17 | Automatic clamping and welding fixture suitable for multi-specification smoke collecting hood and with correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811080415.9A CN110900063B (en) | 2018-09-17 | 2018-09-17 | Automatic clamping and welding fixture suitable for multi-specification smoke collecting hood and with correction function |
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| Publication Number | Publication Date |
|---|---|
| CN110900063A CN110900063A (en) | 2020-03-24 |
| CN110900063B true CN110900063B (en) | 2022-05-17 |
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| CN201811080415.9A Active CN110900063B (en) | 2018-09-17 | 2018-09-17 | Automatic clamping and welding fixture suitable for multi-specification smoke collecting hood and with correction function |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110900063A (en) | 2020-03-24 |
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Denomination of invention: Suitable for multi specification smoke hoods and automatic clamping welding fixtures with correction function Effective date of registration: 20230721 Granted publication date: 20220517 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2023980049309 |
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