CN109604827B - Welding equipment for rotating sleeve on sensor pin - Google Patents
Welding equipment for rotating sleeve on sensor pin Download PDFInfo
- Publication number
- CN109604827B CN109604827B CN201910129134.6A CN201910129134A CN109604827B CN 109604827 B CN109604827 B CN 109604827B CN 201910129134 A CN201910129134 A CN 201910129134A CN 109604827 B CN109604827 B CN 109604827B
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- head
- welding
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- limiting plate
- laser
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- 238000003466 welding Methods 0.000 title claims abstract description 68
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a device for rotationally welding a sleeve on a sensor pin, which comprises a positioning head, wherein the positioning head is arranged along the transverse axial direction of a rotating shaft, and clamping heads for clamping workpieces are arranged on two sides of the positioning head through clamping and matching; the laser rays emitted by the laser welding head at one side of the fixture are focused on the product rotating surface outside the chuck; the laser welding head is sleeved with an annular light source, and is arranged on the support component capable of being adjusted in a displacement mode; the side surface of the tool clamp is also provided with a limiting plate which can be inserted into the positioning head and realize the alignment and positioning of the end part of the clamped end of the workpiece; the limiting plate is driven by the displacement assembly to realize the linear motion of the limiting plate along the axial or radial feeding of the workpiece; the side surface of the tool clamp is also provided with a plurality of sensing heads for detecting the clamping state of the workpiece; the laser welding head comprises the following components on the same optical axis: the laser beam welding device comprises a vision camera, a laser generating unit and an annular light source, wherein the vision camera detects the focusing point and the welding point of a laser beam passing through the annular light source in position precision.
Description
Technical Field
The invention relates to the field of welding equipment for sensor pins, in particular to rotating welding equipment for sleeves on sensor pins.
Background
With rapid development of automobile technology and electronic technology, electronic technology and computer technology are widely applied to automobiles, and electronic control devices are commonly adopted in fuel injection systems, electronic ignition systems, speed-extinguishing control systems, air intake control systems, exhaust emission and transmission systems, running systems, steering systems, braking systems and automobile bodies of engines. Automobiles have become an electromechanical integrated product. In an electronic control system of an automobile, a sensor plays a role in collecting and transmitting information, is an important component in the electronic control system, converts the information into an electric signal which can be accepted by a computer and sends the electric signal to an ECU, and the ECU carries out operation processing according to the information and further sends out instructions.
The sensor is used as an important electronic component in an increasingly large amount. In particular, the market prospect of high-end performance sensors is becoming wider and wider, and the production of sensors requires the correct soldering of pins to the sensor base or corresponding ends. In the process, a series of treatments are carried out on the pins, the defective products with polar defects are screened and removed, and finally, the welding height, the spacing and other dimensions are ensured to meet the specification. The prior art is divided into multiple steps, so that automatic production cannot be realized, and the production efficiency is low.
When the pin is welded, a product is required to be placed or fixed on a workbench through a fixture, and then the fixture is placed on a welding platform. However, the fixture is difficult to ensure accurate product positioning in the clamping process or damage to a workpiece due to unstable clamping force, so that the fixture is difficult to match with various sensor leads. Moreover, such frock is changed inconveniently, and has frock clamp to damage or injure staff's risk, can occupy great working space.
Disclosure of Invention
The technical scheme of the invention is as follows: the utility model provides a sleeve rotation welding equipment on sensor pin, includes the setting in the protective housing: the welding fixture comprises a fixture clamp, a laser welding head and a protective gas nozzle, and a workpiece is subjected to rotary welding processing in a protective box. The protection box is provided with a negative pressure adsorption head which is connected to a pressure source through an air passage.
The workpiece needs to be clamped transversely, so that the workpiece can have a transverse rotation degree of freedom. Therefore, the fixture comprises a positioning head with a rotating shaft arranged along the transverse axial direction, clamping heads for clamping workpieces are arranged on two sides of the positioning head through clamping and matching, and the fixture is driven by a power source.
The work fixture rotates with the work piece, so that laser is required to act on the joint of the work piece, and welding is performed along with the rotation of the work piece. The laser rays emitted by the laser welding head at one side of the fixture are focused on the product rotating surface outside the chuck. The laser welding head comprises the following components on the same optical axis: the laser beam welding device comprises a vision camera, a laser generating unit and an annular light source, wherein the vision camera detects the focusing point and the welding point of a laser beam passing through the annular light source in position precision.
The laser welding head is arranged on the support component capable of being adjusted in a displacement mode, and the relative position between the famine welding head and the tool clamp can be adjusted through the support component. The side surface of the tool clamp is also provided with a limiting plate which can be inserted into the positioning head and realize the alignment and positioning of the end part of the clamped end of the workpiece; an elastic trigger switch is arranged on the limiting plate; the limiting plate is driven by the displacement assembly to realize the linear motion of the limiting plate along the axial or radial feeding of the workpiece. In order to ensure the accuracy of clamping in place and welding positions of the workpieces, a plurality of sensing heads for detecting the clamping state of the workpieces are further arranged on the side face of the tool clamp.
Preferably, the positioning head is provided with a matching hole penetrating through the positioning head along the radial direction of the positioning head, and the front end surface of the positioning head is provided with a mounting hole communicated with the matching hole; the upper end of the limiting plate is inserted into the matching hole, and the front end of the workpiece is inserted into the mounting hole and is propped against the upper end of the limiting plate.
Preferably, the tool clamp comprises a turntable; the chuck is arranged on the front surface of the turntable through a pneumatic base, and the clamping center of the chuck is overlapped with the axis of the turntable; the tail end of the positioning head is connected to the turntable; the back of the turntable is linked to the motor through a transmission shaft.
Preferably, the support assembly comprises: a bottom seat board, an X-direction seat board, a Y-direction seat board and a Z-direction seat board; the adjacent two seat boards are in threaded connection with each other to realize movement adjustment or relative fixation; the laser welding head is arranged on the Z-direction seat board.
Preferably, the displacement assembly comprises an X-direction unit and a Z-direction unit; the X-direction unit comprises a first linear module which moves along the axial direction of the clamped workpiece; the Z-direction unit comprises a second linear module which is based on the symmetry center of the vertical axis of the clamped workpiece and moves along the radial direction of the clamped workpiece; the limiting plate is pushed by the X-direction unit, and the X-direction unit is pushed by the Z-direction unit.
Preferably, the protection box comprises a lifting door; the lifting door is driven by a vertical lifting guide assembly.
The invention has the advantages that:
1. the rotary surface welding of the sensor pin can be realized through the state of rotating clamping and the laser welding, so that the welding efficiency can be improved and the welding quality can be ensured by using accurate sensing detection as the condition guarantee of positioning clamping.
2. And the welding unit based on the laser lens has higher visual positioning capability, combines with limit trigger conditions in the clamping process, and starts welding after meeting a plurality of detection conditions so as to ensure welding quality.
3. By utilizing the rotary table type movement mode, based on two clamping effects of end part insertion and clamping, more stable workpiece positioning and rotation can be achieved, and the workpiece clamping is convenient and the stability of the welding process can be ensured.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a perspective view of a sleeve rotation welding apparatus on a sensor pin;
FIG. 2 is a partial cross-sectional view of a sleeve rotation welding apparatus on a sensor pin;
FIG. 3 is an enlarged view of a portion of region B of FIG. 2;
FIG. 4 is a combined structure diagram of a fixture, a laser welding head, a support assembly and a displacement assembly;
FIG. 5 is an enlarged view of a portion of area A of FIG. 4;
FIG. 6 is a structural top view of the tooling fixture;
wherein: 1. a work table; 2. a protection box; 3. a case; 4. a negative pressure adsorption head; 5. a pressure source; 6. a lifting door; 7. a vertical guide rod; 8. a positioning head; 9. a chuck; 10. a turntable; 11. a pneumatic base; 12. a motor; 13. a limiting plate; 14. a vision camera; 15. a laser generating unit; 16. an annular light source; 17. a bottom seat plate; 18. an X-direction seat plate; 19. a Y-direction seat plate; 20. a Z-direction seat plate; 21. a first cylinder; 22. a right-angle seat plate; 23. a second cylinder; 24. a second track; 25. a sensor head.
Detailed Description
Examples:
as shown in figures 1-6, the rotary welding equipment for the sleeve on the sensor pin comprises a workbench 1, a protection box 2, a tool clamp, a laser welding head, a supporting component and a displacement component. The protection box 2, the frock clamp, the laser welding head, the supporting component, displacement subassembly are located the upper surface of workstation 1, and the lower part of workstation 1 is box 3, and box 3 bottom sets up the universal wheel, has set up the electric cabinet in the box 3 and has been used for the absorptive pressure source of negative pressure. The fixture, the laser welding head and the protection box 2 are matched, the positions of main welding components are always located in the protection box 2, meanwhile, a protection gas nozzle is further arranged in the protection box 2, and in the protection gas environment, workpieces are subjected to rotary welding processing in the protection box 2. Meanwhile, a negative pressure adsorption head 4 is provided on the protective case 2, and the negative pressure adsorption head 4 is connected to a pressure source 5 through an air passage.
Meanwhile, a lifting door 6 is arranged on the protection box 2, and the lifting door 6 is driven by a vertical lifting guide assembly. As shown in fig. 2, the guide assembly includes a vertical guide rod 7 and an air cylinder, and the lifting door 6 is lifted along the vertical guide rod 7. An opening is provided in the table 1, and the lift gate 6 is lifted from below the table 1 to above the table 1 along the opening.
In the welding process, the workpiece needs to be transversely clamped, so that the workpiece can have a transverse rotation degree of freedom. Therefore, the fixture comprises a positioning head 8 with a rotating shaft arranged along the transverse axial direction, clamping heads 9 for clamping workpieces are arranged on two sides of the positioning head 8 in a clamping fit manner, the fixture is driven by a power source, and a sensing head 25 is further arranged on the side face of the clamping position and used for clamping the workpieces, so that the workpieces are clamped on the fixture. As shown in fig. 5 and 6, the tool fixture comprises a turntable 10, a positioning head 8 and a chuck 9, wherein the chuck 9 is arranged on the front surface of the turntable 10 through a pneumatic base 11, the clamping center of the chuck 9 is coincident with the axis of the turntable 10, and the pneumatic base 11 provides the clamping force of the chuck 2. The end of the positioning head 8 is connected to a turntable 10, and the back of the turntable 10 is provided with a coupling assembly which is coupled to a motor 12 on the underside thereof by a belt. The positioning head 8 is radially provided with a matching hole penetrating the positioning head along the radial direction, the front end surface of the positioning head 8 is provided with a mounting hole communicated with the matching hole, and one end of a workpiece is inserted into the mounting hole to be mounted and positioned. Meanwhile, the positioning head 8 is matched with a limiting plate 13, the upper end of the limiting plate 13 is inserted into the matching hole, and the front end of the workpiece is inserted into the mounting hole and is propped against the upper end of the limiting plate 13. Meanwhile, an elastic trigger switch is arranged at the lower end of the limiting plate and is triggered according to the workpiece jacking force received by the limiting plate 13, so that the workpiece is ensured to be welded after being clamped to a correct position.
The work fixture rotates with the work piece, so that laser is required to act on the joint of the work piece, and welding is performed along with the rotation of the work piece. The laser rays emitted by the laser welding head at one side of the fixture are focused on the product rotation surface outside the chuck 9. The laser welding head comprises the following components on the same optical axis: the vision camera 14, the laser generating unit 15 and the annular light source 16, and the vision camera 14 performs position calibration detection on the focus point and the welding point of the laser beam passing through the annular light source 16. At the same time, a focusing table for adjusting the focal power of the regulator is also provided on the laser generating unit 15. The vision camera 14 calibrates the welding position, and only when the signal feedback of the vision camera 14, the feedback of the trigger switch on the limiting plate and the feedback of the sensing head 25 are synchronous, the welding process is formally started, so that the welding quality is further improved.
The laser welding head is arranged on the support component capable of being adjusted in a displacement mode, and the relative position between the famine welding head and the tool clamp can be adjusted through the support component. The supporting component comprises the following components which are sequentially overlapped and installed: a bottom seat 17, an X-direction seat 18, a Y-direction seat 19, and a Z-direction seat 20. The base plate 17 is supported on the table 1, the X-direction seat plate 18 is mounted on the base plate 17, the Y-direction seat plate 19 is mounted on the X-direction seat plate 18, the Z-direction seat plate 20 is mounted on the Y-direction seat plate 19, and the laser welding head is mounted on the Z-direction seat plate 20. The two adjacent seat boards are moved and adjusted in the corresponding directions through the two studs, fine adjustment or fixation can be realized through the threaded connection relation, and maintenance operation is convenient.
The limiting plate arranged on the side face of the tool clamp is driven by the displacement assembly to realize linear motion of the limiting plate along the axial or radial feeding of the workpiece. The displacement assembly comprises an X-direction unit and a Z-direction unit, wherein the X-direction unit comprises a first linear module which moves along the axial direction of the clamped workpiece. The first linear module comprises a first cylinder 21 pushed and pulled linearly along a first rail, the first cylinder is directly matched on the first rail, and the first rail is fixed on a right-angle seat board 22. The Z-direction unit comprises a second linear module which is based on the symmetry center of the vertical axis of the clamped workpiece and moves along the radial direction of the clamped workpiece, and the second linear module comprises a second cylinder 23 which is pushed and pulled linearly along a second track 24, and the right-angle seat plate 22 is matched on the second track 24. Thus, the stopper plate 13 is pushed by the X-direction unit, which is pushed by the Z-direction unit.
In order to ensure the clamping in place of the workpiece and the accuracy of the welding position, a plurality of sensor heads 25 for detecting the clamping state of the workpiece are also arranged on the side surface of the tool fixture. The sensing head 25 is used for positioning and detecting workpieces on the fixture, so that the workpieces to be welded are ensured to be clamped on the fixture.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (6)
1. The sleeve rotation welding equipment on the sensor pin comprises a protection box, wherein: the device comprises a fixture clamp, a laser welding head and a protective gas nozzle; the protection box is provided with a negative pressure adsorption head; the method is characterized in that: the fixture comprises a positioning head with a rotating shaft arranged along the transverse axial direction, and chucks which are matched with the positioning head through clamping are arranged on two sides of the positioning head to clamp a workpiece; the tool clamp is driven by a power source; the laser rays emitted by the laser welding head at one side of the fixture are focused on the product rotating surface outside the chuck; the annular light source is sleeved outside the laser welding head, and the laser welding head is arranged on the support component capable of being adjusted in a displacement mode; the side surface of the tool clamp is also provided with a limiting plate which can be inserted into the positioning head and realize the alignment and positioning of the end part of the clamped end of the workpiece; an elastic trigger switch is arranged on the limiting plate; the limiting plate is driven by the displacement assembly to realize linear motion of the limiting plate along the axial or radial feeding of the workpiece; the side surface of the tool clamp is also provided with a plurality of sensing heads for detecting the clamping state of the workpiece; the laser welding head comprises the following components on the same optical axis: the device comprises a visual camera, a laser generating unit and an annular light source, wherein the visual camera detects the focusing point and the welding point of a laser beam passing through the annular light source in position precision;
before welding, the signal feedback of the vision camera, the feedback of the trigger switch on the limiting plate and the feedback of the sensing head are synchronized.
2. The sensor pin-on-sleeve rotational welding apparatus of claim 1, wherein: the positioning head is provided with a matching hole penetrating through the positioning head along the radial direction of the positioning head, and the front end surface of the positioning head is provided with a mounting hole communicated with the matching hole; the upper end of the limiting plate is inserted into the matching hole.
3. The sensor pin-on-sleeve rotational welding apparatus of claim 2, wherein: the tool clamp comprises a turntable; the clamping head is arranged on the front surface of the turntable through a pneumatic base, and the clamping center of the clamping head is overlapped with the axis of the turntable; the tail end of the positioning head is connected to the turntable; the back of the turntable is linked to the motor through a transmission shaft.
4. The sensor pin-on-sleeve rotational welding apparatus of claim 2, wherein: the supporting component comprises a supporting component which is installed in a sequentially overlapped mode: a bottom seat board, an X-direction seat board, a Y-direction seat board and a Z-direction seat board; the adjacent two seat boards are in threaded connection with each other to realize movement adjustment or relative fixation; the laser welding head is arranged on the Z-direction seat board.
5. A sensor pin sleeve rotational welding apparatus according to claim 3, wherein: the displacement assembly comprises an X-direction unit and a Z-direction unit; the X-direction unit comprises a first linear module which moves along the axial direction of the clamped workpiece; the Z-direction unit comprises a second linear module which is based on the symmetry center of the vertical axis of the clamped workpiece and moves along the radial direction of the clamped workpiece; the limiting plate is pushed by the X-direction unit, and the X-direction unit is pushed by the Z-direction unit.
6. The sensor pin-on-sleeve rotational welding apparatus of claim 4, wherein: the protection box comprises a lifting door; the lifting door is driven by a vertical lifting guide assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129134.6A CN109604827B (en) | 2019-02-21 | 2019-02-21 | Welding equipment for rotating sleeve on sensor pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129134.6A CN109604827B (en) | 2019-02-21 | 2019-02-21 | Welding equipment for rotating sleeve on sensor pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109604827A CN109604827A (en) | 2019-04-12 |
| CN109604827B true CN109604827B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910129134.6A Active CN109604827B (en) | 2019-02-21 | 2019-02-21 | Welding equipment for rotating sleeve on sensor pin |
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| CN (1) | CN109604827B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091063B (en) * | 2019-05-14 | 2022-05-10 | 宁波均普智能制造股份有限公司 | Laser welding equipment |
| CN110181821B (en) * | 2019-06-21 | 2023-12-29 | 南京帝耐激光科技有限公司 | Laser welding car lamp system and method |
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