CN212495958U - Laser welding equipment for welding coiled resistance alloy - Google Patents
Laser welding equipment for welding coiled resistance alloy Download PDFInfo
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- CN212495958U CN212495958U CN202020590732.1U CN202020590732U CN212495958U CN 212495958 U CN212495958 U CN 212495958U CN 202020590732 U CN202020590732 U CN 202020590732U CN 212495958 U CN212495958 U CN 212495958U
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Abstract
The utility model relates to a be used for web resistance alloy welded laser welding equipment, including the blowing machine, material positioner, first welding station, second welding station and receipts material machine, all be provided with the laser welding module on first welding station and the second welding station, material positioner will follow pin strip A of blowing machine, resistor body strip B leads to first welding station, pin strip C leads to second welding station, pin strip A and resistor body strip B form semi-manufactured goods strip through the welding of laser welding module at first welding station, semi-manufactured goods strip forms the finished product strip through the welding of laser welding module with pin strip C at second welding station, the finished product strip forms the finished product coil stock through receiving the material machine. The utility model discloses a laser welding process, on the basis that need not increase the solder, realize the welding of red copper pin strip and accurate alloy resistor body strip, can realize high-quality welding to narrow, thin strip, enlarge accurate alloy resistor application range.
Description
Technical Field
The utility model relates to a resistance production technical field, in particular to be used for web-like resistance alloy welded laser welding equipment.
Background
In the existing production process of the precise chip resistor, a silver brazing or vacuum electron beam welding process is generally adopted to weld a red copper pin and an alloy resistor (such as manganin/nickel-chromium/iron-chromium-aluminum) together, so that the current monitoring and shunting effects are achieved in feedback current, and the safety of a circuit is improved.
The method is characterized in that a silver brazing process is utilized to process the precision resistor, a silver welding rod or soldering tin needs to be melted under the high-temperature action of a high-frequency heating furnace and the like, and the red copper pin and the alloy resistor are welded together; meanwhile, the welding process causes serious energy waste and environmental pollution, has low welding efficiency and is in a stage of being gradually replaced.
The vacuum electron beam welding process belongs to a high-energy welding process, is environment-friendly, and can realize the welding of the alloy under the condition of a small heat affected zone, but the process needs to carry out welding under a vacuum environment, and the equipment cost is high (200-1000 ten thousand); welding in a vacuum environment is difficult to realize real-time monitoring and adjustment of the welding process, welding defects are often required to be detected after welding, and the production efficiency is reduced; in addition, the process is influenced by devices such as welding gun machining precision and voltage control, and at present, materials with the thickness of less than 0.3mm or the width of less than 1.5mm are difficult to weld, so that the application of the process in the field of precise alloy resistors is limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a be used for web-like resistance alloy welded laser welding equipment.
In order to achieve the above purpose, the utility model provides a technical scheme does: the laser welding equipment for welding the coiled resistance alloy comprises a feeding machine, a material positioning device, a first welding station, a second welding station and a material receiving machine, wherein laser welding modules are arranged on the first welding station and the second welding station, the material positioning device pulls a pin strip A and a resistor strip B from the feeding machine to the first welding station and pulls a pin strip C to the second welding station, the pin strip A and the resistor strip B are welded at the first welding station through the laser welding modules to form a semi-finished strip, the semi-finished strip and the pin strip C are welded at the second welding station through the laser welding modules to form a finished strip, and the finished strip forms a finished coil through the material receiving machine.
In the technical scheme, the pin strip A and the pin strip C are symmetrically welded and fixed on two sides of the resistor strip B in the width direction to form a finished product strip.
In the above technical scheme, the material positioning device includes a plurality of first material rollers and a plurality of material pressing assemblies, and the material pressing assemblies are composed of material pressing rollers and second material rollers.
In the technical scheme, the first welding station and the second welding station are provided with the third material roller, the protective cover is arranged between the main material roller and the laser module, the upper end and the lower end of the protective cover are provided with the openings, the protective cover is connected with the dust suction device, and the dust suction device adsorbs welding slag splashed in the welding process in the welding area of the first welding station and the second welding station by utilizing negative pressure.
In the technical scheme, the material positioning device is provided with three sensors for respectively detecting whether the pin strip A, the pin strip C and the resistor strip B pass through.
In the technical scheme, the laser welding module includes laser head, mobile unit, the laser head passes through the mobile unit and removes at welding area, the mobile unit is provided with the tool of centre gripping laser head.
In the technical scheme, a finished product strip traction mechanism and a resistance temperature drift testing mechanism are sequentially arranged between the second welding station and the material receiving machine.
In the above technical scheme, the welding device further comprises a visual detection device, and a detection area of the visual detection device is behind a welding area of the second welding station.
In the technical scheme, the welding device further comprises a gas supply device, and the gas supply device blows inert gas to the welding areas of the first welding station and the second welding station.
The utility model has the advantages of, the utility model discloses a laser welding process, on the basis that need not increase the solder, realize the welding of red copper pin strip and accurate alloy resistor body strip (manganin/nickel chromium/iron chromium aluminium etc.), laser welding is comparatively environmental protection, and the welded molten bath area is little, realizes the welding of red copper pin strip and accurate alloy resistor body strip under very little heat affected condition, need not use under the vacuum environment, and equipment cost is low, can be through visual detection device in welding process real-time supervision welding quality, adjust welding parameter, improve welding quality; the utility model discloses an equipment can further enlarge the application range of accurate alloy resistance to narrow, thin strip (thickness < 0.1mm, width < 0.5 mm) realization high-quality welding, through blowing machine, receipts material machine, material positioner, realizes continuous, the high quality welding of roll strip.
Drawings
Fig. 1 is a schematic view of the overall appearance structure of the utility model.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
In the figure: 101. a pin strip A; 102. a resistor strip B; 103. a pin strip C; 104. a finished strip; 21. a first material roller; 22. a nip roll; 23. a second material roller; 24. a sensor; 25. a third material roller; 31. a first welding station; 32. a second welding station; 41. a mobile unit; 42. a laser head; 43. a jig; 44. a laser transmitter; 5. a protective cover; 6. a finished product belt material traction mechanism; 7. the display is monitored.
Detailed Description
The embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-2, a laser welding apparatus for welding coil-shaped resistance alloy comprises a feeding machine, a material positioning device, a first welding station 31, the material positioning device pulls a pin strip A (101) and a resistor strip B (102) from the feeding machine to the first welding station 31, a pin strip C (103) is pulled to the second welding station 32, the pin strip A (101) and the resistor strip B (102) are welded at the first welding station 31 through the laser welding module to form a semi-finished strip (104), the semi-finished strip (104) and the pin strip C (103) are welded at the second welding station 32 through the laser welding module to form a finished strip (104), and the finished strip (104) forms a finished coil through the material receiving machine. The feeding machine is used for placing a rolled red copper pin strip A (101), a rolled red copper pin strip C (103) and a rolled alloy resistor strip B (102), and the materials respectively pass through the feeding machine, the material positioning device, the first welding station 31, the second welding station 32, the finished product strip traction mechanism 6, the resistance temperature drift testing mechanism and the material collecting machine to realize welding of the rolled alloy resistor material.
The pin strip A (101) and the pin strip C (103) are symmetrically welded and fixed on two sides of the resistor strip B (102) in the width direction to form a finished product strip (104).
The material positioning device comprises a plurality of first material rollers 21 and a plurality of material pressing assemblies, wherein the material pressing assemblies are composed of material pressing rollers 22 and second material rollers 23. The relative positions (horizontal height, material interval and the like) of the pin strip A (101), the rolled red copper pin strip C (103) and the rolled alloy resistor body strip B (102) to be welded are detected and adjusted through the first material roller 21 and the plurality of material pressing components of the material positioning device, and the strips to be welded are ensured to be level, equal in height and consistent in interval.
The material positioning device is provided with three sensors 24 for respectively detecting whether a pin strip A (101), a pin strip C (103) and a resistor strip B (102) pass through.
The laser welding module comprises a laser head 42, a moving unit 41 and a laser emitter 44, wherein the laser head 42 moves in a welding area through the moving unit 41, and the moving unit 41 is provided with a jig 43 for clamping the laser head 42. The laser emitter 44 is optically connected to the laser head 42.
A finished product strip traction mechanism 6 and a resistance temperature drift testing mechanism are sequentially arranged between the second welding station 32 and the material receiving machine. The resistance temperature drift testing mechanism carries out real-time resistance and temperature drift tests on the welded finished product strip (104) (the red copper-precision alloy resistance composite strip), so as to ensure the consistency and stability of the finished product strip (104); and finally, under the traction action of a material receiving machine, finishing the welded finished product strip (104) into a roll for later use. The resistance temperature drift testing mechanism adopts the technical scheme of the roll-shaped raw material temperature drift continuous testing equipment and the testing method thereof disclosed in the Chinese utility model patent with the application number of 2020102622122.
And a visual inspection device comprising an industrial camera and a monitor display 7 connected to the industrial camera. The detection area of the visual detection device is behind the welding area of the second welding station 32. Under the drive of finished product strip drive mechanism 6 and receipts material machine, the strip in the removal can make the welding region take place slight change, enlargies the detection through the region of vision detection device after the welding, avoids appearing quality problems such as leaking welding, fracture, hole and splashing, in time adjusts welding process.
And the gas supply device is used for blowing inert gas to the welding area of the first welding station 31 and the second welding station 32. When the welding material passes through the laser heads 42 of the first welding station 31 and the second welding station 32, the gas supply device can blow protective gas (inert gases such as nitrogen, argon and the like) to a welding area, so that the oxidation of the strip material in the high-temperature (about 3000 ℃) welding process is avoided, and the welded strip material is cooled.
The utility model discloses a laser welding process, on the basis that need not increase the solder, realize the welding of red copper pin strip and accurate alloy resistor body strip (manganin/nickel chromium/iron chromium aluminium etc.), laser welding is comparatively environmental protection, and welded molten bath area is little, realizes the welding of red copper pin strip and accurate alloy resistor body strip under very little heat affected condition, need not use under the vacuum environment, and equipment cost is low, can be through visual detection device in welding process real-time supervision welding quality, adjust welding parameter, improve welding quality; the utility model discloses an equipment can further enlarge the application range of accurate alloy resistance to narrow, thin strip (thickness < 0.1mm, width < 0.5 mm) realization high-quality welding, through blowing machine, receipts material machine, material positioner, realizes continuous, the high quality welding of roll strip.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the present invention.
Claims (9)
1. The laser welding equipment for welding the coiled resistance alloy is characterized by comprising a feeding machine, a material positioning device, a first welding station, a second welding station and a material receiving machine, wherein laser welding modules are arranged on the first welding station and the second welding station, the material positioning device pulls a pin strip A and a resistor strip B from the feeding machine to the first welding station, and pulls a pin strip C to the second welding station, the pin strip A and the resistor strip B are welded at the first welding station through the laser welding modules to form a semi-finished strip, the semi-finished strip and the pin strip C are welded at the second welding station through the laser welding modules to form a finished strip, and the finished strip forms a finished coil through the material receiving machine.
2. The laser welding apparatus for welding the alloy with the coil resistance according to claim 1, wherein the pin strip A and the pin strip C are symmetrically welded and fixed on two sides of the resistor strip B in the width direction to form a finished strip.
3. The laser welding apparatus for resistance alloy coil welding as set forth in claim 2, wherein said material positioning means comprises a plurality of first material rolls, a plurality of nip assemblies, said nip assemblies consisting of a nip roll and a second material roll.
4. The laser welding apparatus for resistance alloy coil welding according to claim 3, wherein the first welding station and the second welding station are each provided with a third material roll.
5. The laser welding apparatus for resistance alloy coil welding according to claim 4, wherein three sensors for detecting the presence or absence of the lead strip A, the lead strip C and the resistor strip B are provided at the material positioning device.
6. The laser welding equipment for welding the coiled resistance alloy according to the claim 5 is characterized in that the laser welding module comprises a laser head and a moving unit, the laser head moves in a welding area through the moving unit, and the moving unit is provided with a fixture for clamping the laser head.
7. The laser welding equipment for welding the coiled resistance alloy as claimed in claim 6, wherein a finished strip traction mechanism and a resistance temperature drift testing mechanism are sequentially arranged between the second welding station and the material receiving machine.
8. The laser welding apparatus for resistance alloy coil welding according to any one of claims 1 to 7, further comprising a visual inspection device, wherein the inspection area of the visual inspection device is behind the welding area of the second welding station.
9. The apparatus for laser welding of resistance alloys in roll form as claimed in any one of claims 1 to 7, further comprising a gas supply device for blowing an inert gas to the welding area of the first welding station and the second welding station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590732.1U CN212495958U (en) | 2020-04-20 | 2020-04-20 | Laser welding equipment for welding coiled resistance alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590732.1U CN212495958U (en) | 2020-04-20 | 2020-04-20 | Laser welding equipment for welding coiled resistance alloy |
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| Publication Number | Publication Date |
|---|---|
| CN212495958U true CN212495958U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020590732.1U Active CN212495958U (en) | 2020-04-20 | 2020-04-20 | Laser welding equipment for welding coiled resistance alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117047279A (en) * | 2023-10-12 | 2023-11-14 | 深圳市业展电子有限公司 | Resistance pin laser welding machine and laser welding process thereof |
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2020
- 2020-04-20 CN CN202020590732.1U patent/CN212495958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117047279A (en) * | 2023-10-12 | 2023-11-14 | 深圳市业展电子有限公司 | Resistance pin laser welding machine and laser welding process thereof |
| CN117047279B (en) * | 2023-10-12 | 2023-12-12 | 深圳市业展电子有限公司 | Resistance pin laser welding machine and laser welding process thereof |
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