CN111673345A - Welding equipment and method for disc type motor iron core - Google Patents
Welding equipment and method for disc type motor iron core Download PDFInfo
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- CN111673345A CN111673345A CN202010441843.0A CN202010441843A CN111673345A CN 111673345 A CN111673345 A CN 111673345A CN 202010441843 A CN202010441843 A CN 202010441843A CN 111673345 A CN111673345 A CN 111673345A
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- welding
- positioning plate
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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
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a welding device of a disk type motor iron core, which comprises a welding platform and a welding gun, and also comprises: the upper positioning plate is fixed above the welding platform in parallel; the jacking mechanism is fixed below the welding platform and is provided with a jacking piece which can stretch up and down, the jacking piece is connected with a lower positioning plate, and the upper surface of the lower positioning plate is parallel to the lower surface of the upper positioning plate. On the basis, a welding method of the disc type motor iron core is further provided. The invention has the beneficial effects that: the clamping force is large, the clamping effect is good, the spring back is avoided, and the product quality is guaranteed.
Description
Technical Field
The invention belongs to the field of motor manufacturing, and particularly relates to equipment and a method for welding a permanent magnet disc type motor iron core.
Background
The disc type motor is also called as a disc type motor, and has the characteristics of small volume, light weight and high efficiency, the rotor and the stator of the common motor are sleeved inside and outside, the disc type motor is thin, the stator is arranged on a flat substrate, the rotor is covered on the stator, the common stator is a coil, and the rotor is a permanent magnet or a disc adhered with the permanent magnet. The manufacturing process of the disc type motor stator core comprises a welding step, and aims to weld the silicon steel sheets which are overlapped together into a whole. Chinese patent document CN110653545A discloses "a motor stator welding apparatus" in 1 month and 7 days of 2020, which includes a base, an outer ring clamping assembly, an inner ring outer support assembly, a top pressing assembly, a welding robot, and a control system; the outer ring clamping assembly is arranged on the outer ring of the base and used for clamping the outer ring of the stator core; the inner ring outer support assembly is arranged in the middle of the base and is positioned in the middle of the outer ring clamping assembly; the inner ring outer support assembly is used for externally supporting an inner ring of the stator core; the top pressing component is positioned above the outer ring clamping component and is used for pressing the top of the stator core; the welding robot is used for automatically welding the clamped stator core; and the control system respectively controls the actions of the outer ring clamping assembly, the inner ring outer support assembly, the top pressing assembly and the welding robot. The be convenient for of this patent is folded towards the piece and is pressed, promotes towards stability and fastness after folding towards the piece to promote welding quality and welding efficiency, and then promote product quality.
In this solution, the top hold-down assembly is used to clamp the silicon steel sheet in the thickness direction, which is described as: the top pressing assembly comprises an upper cover supporting frame, a connecting bolt, an adjusting screw rod, a top cover, a plurality of first spring pressing rod groups and a plurality of second spring pressing rod groups; the upper cover supporting frame is arranged on the outer ring supporting frame and is positioned on the inner sides of the plurality of outer supporting modules; a plurality of guide rod sleeves are arranged on the upper cover supporting frame in the circumferential direction; the connecting bolt is arranged in the center of the upper cover supporting frame, the adjusting screw rod is positioned inside the connecting bolt, the lower end of the adjusting screw rod penetrates through the upper cover supporting frame and is limited through the screw rod sleeve, the top cover is sleeved on the upper part of the connecting bolt, and a plurality of fixing guide rods are arranged on the circumference of the top cover; each fixed guide rod is matched with each guide rod sleeve, and a limit sleeve is arranged between the top cover and the connecting bolt; the top of the connecting bolt penetrates through the top cover and is sleeved with a locking plate and a locking nut, and the top cover is tightly pressed through the matching of the locking nut and the locking plate; the plurality of first spring pressure bar groups and the plurality of second spring pressure bar groups are arranged on the outer ring circumference of the top cover in a regular inserting and vacant mode. Due to the adoption of elastic clamping, the clamping force is not high, the height difference of the wound iron core caused by winding cannot be thoroughly eliminated, and negative effects are caused on the welding strength, so that the stability and firmness of the finished stator product are not ideal.
Disclosure of Invention
The existing welding equipment for the disc type motor iron core adopts an elastic clamping structure to solve the problem of axial clamping of silicon steel sheets, and the clamping force is insufficient. The invention provides welding equipment for a disc type motor iron core, which adopts a more effective clamping structure to solve the problem of insufficient clamping force; on the basis, a welding method of the disc type motor iron core is provided.
The invention discloses a welding device of a disc type motor iron core, which comprises a welding platform and a welding gun, and also comprises:
the upper positioning plate is fixed above the welding platform in parallel;
the jacking mechanism is fixed below the welding platform and is provided with a jacking piece which can stretch up and down, the jacking piece is connected with a lower positioning plate, and the upper surface of the lower positioning plate is parallel to the lower surface of the upper positioning plate.
The welding equipment comprises a welding platform serving as a reference operation platform, and the welding platform is set to extend horizontally for convenience of description and understanding. An upper positioning plate is fixed on the welding platform, and generally necessary holes are formed in the upper positioning plate so that a welding gun can extend downwards to perform welding operation. The lower surface of the upper positioning plate is parallel to the welding platform and also extends horizontally, and the lower surface of the upper positioning plate is used for being abutted to the top surface of the wound iron core to be welded. The fixing mode can be one of any prior art, and the structure which is convenient to disassemble and assemble can be usually selected so as to replace the upper positioning plate with different specifications when different production models are replaced. The welding platform is provided with a jacking mechanism below, the jacking mechanism can be a device with a jacking piece capable of stretching up and down, such as an air cylinder, an oil cylinder, an electric cylinder, a linear motor and the like, and an electrically-controlled device is recommended to be used so as to meet the requirement of automatic operation. The pushing piece drives the lower positioning plate to vertically lift. The upper surface of the lower positioning plate is also horizontally extended and is used for abutting against the bottom surface of the wound iron core to be welded. When the wound iron core to be welded is positioned on the lower positioning plate, the jacking mechanism acts, the jacking piece pushes the lower positioning plate to ascend, the wound iron core to be welded is tightly clamped between the upper positioning plate and the lower positioning plate, the upper surface and the lower surface of the wound iron core are ensured to be completely flush, and the process precision requirement is met.
Preferably, the jacking mechanism comprises an oil cylinder, and the end part of a piston connecting rod of the oil cylinder is connected with the lower positioning plate. In various jacking mechanisms, the oil cylinder is small in size, but high in response speed, capable of generating large output force and suitable for being applied to automatic equipment. Meanwhile, the oil cylinder can conveniently change the output force, so that the proper force can be conveniently adjusted when stators of different models are replaced and manufactured.
Preferably, a feeding slide rail is further arranged and arranged on the welding platform; the feeding disc slides along the feeding slide rail, a through hole which is longitudinally communicated is arranged on the feeding disc, and the through hole is matched with the lower positioning plate in size and position. The feeding slide rail and the feeding disc are arranged to adapt to automatic production. It should be noted here that if the feeding tray meets the technical requirements of the lower positioning plate, the feeding tray and the lower positioning plate may be combined into a whole, or the feeding tray and the lower positioning plate may be fixedly connected, so that the feeding tray can carry the wound iron core to be welded to enter and exit the welding equipment, or the feeding tray can be driven by the jacking mechanism to ascend and descend. The concrete connection structure of the two-in-one can adopt the prior art scheme, and the technical personnel in the field can decide according to the actual need.
Preferably, the welding platform is provided with a front slide rail, a rear slide rail, an upper slide rail, a lower slide rail, a left slide rail and a right slide rail, and the welding gun can slide in the sliding range of the front slide rail, the rear slide rail, the upper slide rail, the lower slide rail and the left slide rail. For flexible welding, the welding platform is provided with a front sliding rail, a rear sliding rail, an upper sliding rail, a lower sliding rail, a left sliding rail and a right sliding rail, the welding gun can be usually arranged on a movable frame, and the movable frame is organically combined with the front sliding rail, the rear sliding rail, the upper sliding rail, the lower sliding rail, the left sliding rail and the right sliding rail to form the movable range of the welding gun, so that no welding.
Preferably, the upper positioning plate is rectangular, and an upper positioning plate reinforcing bar is fixed to the upper side surface of the upper positioning plate in close contact along two long sides of the rectangle. In the welding operation, the upper positioning plate and the lower positioning plate are matched to clamp the wound core to be welded, so that a large force needs to be borne. The upper positioning plate is rectangular, and the positioning plate reinforcing strips are designed on two long edges of the rectangle to serve as reinforcing structures, so that the stress capacity of the upper positioning plate is improved.
Preferably, four corners of the upper positioning plate are fastened above the welding platform through screw pairs. The design is simple and convenient, and different upper positioning plates are convenient to replace, so that the requirements for producing different models of products are met.
A welding method of a disk type motor iron core applies the welding equipment and comprises the following steps:
a, feeding; placing a wound iron core to be welded on a feeding disc, and sliding the feeding disc along a feeding slide rail to be positioned;
b, jacking; the jacking mechanism acts, the lower positioning plate moves from bottom to top, penetrates through the through hole in the feeding disc, and jacks the wound iron core to be welded up until the top surface of the wound iron core to be welded is tightly attached to the bottom surface of the upper positioning plate;
c, pressurizing; pressurizing the wound iron core to be welded through a jacking mechanism;
d, welding; the welding gun automatically moves and welds the set welding spot;
e, maintaining the pressure; after welding, the jacking mechanism continuously keeps pressure on the welded wound iron core;
f, discharging in a pressure relief manner; after the pressure maintaining is finished, the pressure is reduced, the lower positioning plate is reset downwards, the welded wound iron core is returned to the feeding disc, and the wound iron core slides along the feeding slide rail to discharge.
In the scheme, the whole welding process is completed under the pressurized condition, so that the alignment effect of the upper top surface and the lower top surface of the wound iron core to be welded is good, and the welding quality is high. And the pressure is continuously maintained after the welding is finished so as to achieve the purposes of thoroughly yielding the silicon steel sheet and keeping the upper top surface and the lower top surface to be shaped in a flush state. The parameters of the pressure applied by the jacking mechanism to the wound iron core to be welded are empirical parameters, and the parameters can be adjusted by a person skilled in the art according to different specifications and models of products and are preset in the control center of the welding equipment. The whole process can be automated to meet the requirement of mass production. Step B should also be adapted if the lower positioning plate and the feed tray are combined into one.
Preferably, the dwell time in the step D is 3-5 minutes. The short pressure maintaining time is not favorable for maintaining the bending state of the silicon steel sheet, and the long pressure maintaining time wastes the production time and reduces the efficiency.
The clamping device has the advantages of large clamping force, good clamping effect, no rebound and guaranteed product quality.
Drawings
Fig. 1 is a schematic view of a welding apparatus of a disc motor core according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a perspective view of fig. 1.
Fig. 4 is a partial cross-sectional view of X-X in fig. 1.
In the figure: 1 welding platform, 2 welding guns, 3 upper positioning plates, 31 upper positioning plate reinforcing strips, 4 lower positioning plates, 5 oil cylinders, 51 piston connecting rods, 6 feeding slide rails, 7 feeding discs, 81 front and rear slide rails, 82 upper and lower slide rails, 83 left and right slide rails, 9 movable frames and 99 winding iron cores.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1, 2 and 3, the apparatus includes a welding table 1 having an approximately square shape, and a plane extending in a horizontal direction. The welding platform 1 is provided with a pair of front and rear sliding rails 81 extending in the front and rear direction, the front and rear sliding rails 81 are connected with a movable frame 9 in a sliding manner, the movable frame 9 is provided with left and right sliding rails 83 in the left and right direction, the left and right sliding rails 83 are connected with a welding gun frame in a sliding manner, the welding gun frame is fixed with upper and lower sliding rails 82 extending in the up and down direction, and the welding gun 2 is connected with the upper and lower sliding rails 82 in a sliding manner. The welding gun 2 can be moved flexibly within the sliding ranges of the front and rear slide rails 81, the upper and lower slide rails 82, and the left and right slide rails 83 by the motor drive to perform a welding task.
Between two front and back slide rails 81, a pair of feeding slide rails 6 are installed on the welding platform 1, and extend along the front and back direction for feeding and discharging to the welding station. Suitably, the feeding tray 7 is slidable on the feeding slide rail 6 for carrying the feeding and discharging of the wound cores 99.
An upper positioning plate 3 is suspended and fixed in the space above the pair of feeding slide rails 6. The upper positioning plate 3 of this example is rectangular, and four corners are fastened above the welding platform 1 through screw pairs. The front and rear sides of the upper surface of the upper positioning plate 3 are all fixed with upper positioning plate reinforcing strips 31 through a plurality of bolt pairs as left and right reinforcing measures. The bottom surface of the upper positioning plate 3 extends along the horizontal direction.
A jacking mechanism is fixed below the welding platform 1. As shown in fig. 4, the jacking mechanism of this embodiment includes an oil cylinder 5, the oil cylinder 5 is fixed on the lower surface of the welding platform 1, and the piston connecting rod 51 extends upwards and can extend and retract vertically. The upper end of the piston connecting rod 51 is connected with a lower positioning plate 4. The upper surface of the lower positioning plate 4 is parallel to the horizontal plane. The feeding disc 7 is provided with a through hole which is longitudinally communicated, and the through hole is matched with the size and the position of the lower positioning plate 4. When the lower positioning plate 4 is lifted by the piston connecting rod, the lower positioning plate can penetrate through the feeding disc 7 from bottom to top to lift the wound iron core 99 to be welded up until the end surface of the wound iron core 99 to be welded is tightly attached to the bottom surface of the upper positioning plate 3. The lower positioning plate is also provided with a necessary positioning and limiting structure to help the wound core 99 to be welded to realize accurate positioning for welding.
The method comprises the following steps:
a, feeding; placing the wound iron core 99 to be welded on the feeding disc 7, and sliding the feeding disc 7 to be positioned along the feeding slide rail 6;
b, jacking; the oil cylinder 5 acts, the piston connecting rod 51 drives the lower positioning plate 4 to move from bottom to top, the lower positioning plate passes through the through hole in the feeding disc 7, and the wound iron core 99 to be welded is lifted up until the top surface of the wound iron core 99 to be welded is tightly attached to the bottom surface of the upper positioning plate 3;
c, pressurizing; the wound iron core 99 to be welded is pressurized by the oil cylinder 5;
d, welding; the welding gun 2 automatically moves and welds the set welding spot;
e, maintaining the pressure; after the welding is finished, the oil cylinder 5 continuously keeps pressure on the wound iron core 99 which is finished to be welded;
f, discharging in a pressure relief manner; after pressure maintaining is finished, the pressure is reduced, the lower positioning plate 4 is reset downwards, the welded wound iron core 99 returns to the feeding disc 7, and the material is discharged in a sliding mode along the feeding sliding rail 6;
the pressure maintaining time in the step D is required to be 3-5 minutes, and 4 minutes is selected in the embodiment.
The welding equipment and the welding method for the disc type motor iron core have the advantages that the clamping force is large, the clamping effect is good, the wound iron core to be welded has a strong shaping effect, the wound iron core to be welded is not deformed and rebounded after welding is finished, and the product quality is guaranteed.
Claims (8)
1. The utility model provides a welding equipment of disk motor core, includes welded platform (1) and welder (2), characterized by still includes:
the upper positioning plate (3) is fixed above the welding platform in parallel;
the jacking mechanism is fixed below the welding platform and is provided with a jacking piece which can stretch up and down, the jacking piece is connected with a lower positioning plate (4), and the upper surface of the lower positioning plate is parallel to the lower surface of the upper positioning plate.
2. The apparatus for welding the iron core of the disc type motor according to claim 1, wherein the jacking mechanism comprises an oil cylinder (5), and the end of a piston connecting rod of the oil cylinder is connected with the lower positioning plate.
3. The welding equipment for the iron core of the disc type motor according to the claim 1 or 2, characterized in that a feeding slide rail (6) is further arranged, and the feeding slide rail is arranged on the welding platform; the feeding disc (7) slides along the feeding slide rail, a through hole which is longitudinally communicated is arranged on the feeding disc, and the through hole is matched with the lower positioning plate in size and position.
4. The apparatus for welding a disc-type motor core according to claim 1 or 2, wherein the welding table is provided with front and rear slide rails (81), upper and lower slide rails (82), and left and right slide rails (83), and the welding gun is slidable within a sliding range of the front and rear slide rails, the upper and lower slide rails, and the left and right slide rails.
5. The apparatus for welding the iron core of the disc motor according to claim 1 or 2, wherein the upper positioning plate has a rectangular shape, and an upper positioning plate reinforcing bar (31) is fixed to the upper surface of the upper positioning plate along both long sides of the rectangular shape.
6. The apparatus for welding an iron core of a disc motor according to claim 1 or 2, wherein four corners of the upper positioning plate are fastened above the welding platform by screw pairs.
7. A welding method of a disk type motor iron core is characterized by comprising the following steps:
a, feeding; placing a wound iron core to be welded on a feeding disc, and sliding the feeding disc along a feeding slide rail to be positioned;
b, jacking; the jacking mechanism acts, the lower positioning plate moves from bottom to top, penetrates through the through hole in the feeding disc, and jacks the wound iron core to be welded up until the top surface of the wound iron core to be welded is tightly attached to the bottom surface of the upper positioning plate;
c, pressurizing; pressurizing the wound iron core to be welded through a jacking mechanism;
d, welding; the welding gun automatically moves and welds the set welding spot;
e, maintaining the pressure; after welding, the jacking mechanism continuously keeps pressure on the welded wound iron core;
f, discharging in a pressure relief manner; after the pressure maintaining is finished, the pressure is reduced, the lower positioning plate is reset downwards, the welded wound iron core is returned to the feeding disc, and the wound iron core slides along the feeding slide rail to discharge.
8. The method of welding a disc motor core according to claim 7, wherein the dwell time in step D is 3 to 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441843.0A CN111673345A (en) | 2020-05-22 | 2020-05-22 | Welding equipment and method for disc type motor iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441843.0A CN111673345A (en) | 2020-05-22 | 2020-05-22 | Welding equipment and method for disc type motor iron core |
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| Publication Number | Publication Date |
|---|---|
| CN111673345A true CN111673345A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010441843.0A Pending CN111673345A (en) | 2020-05-22 | 2020-05-22 | Welding equipment and method for disc type motor iron core |
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| CN (1) | CN111673345A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112222720A (en) * | 2020-09-24 | 2021-01-15 | 博众精工科技股份有限公司 | Automatic welding equipment |
| CN116748626A (en) * | 2023-07-12 | 2023-09-15 | 石家庄职业技术学院(石家庄开放大学) | Automatic welding device for electronic components |
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| CN116748626A (en) * | 2023-07-12 | 2023-09-15 | 石家庄职业技术学院(石家庄开放大学) | Automatic welding device for electronic components |
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Application publication date: 20200918 |
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| RJ01 | Rejection of invention patent application after publication |