CN217071054U - Wire feeding device of laser welding tool - Google Patents
Wire feeding device of laser welding tool Download PDFInfo
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- CN217071054U CN217071054U CN202123338804.7U CN202123338804U CN217071054U CN 217071054 U CN217071054 U CN 217071054U CN 202123338804 U CN202123338804 U CN 202123338804U CN 217071054 U CN217071054 U CN 217071054U
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Abstract
The utility model discloses a laser welding tool's wire drive feed unit, the device drive through electric gear and send a action wheel rotatory, send a action wheel drive to send a work from the driving wheel, send a action wheel and transmit the welding wire under the extrusion from the driving wheel. In the device, the welding wire drives the rear-end speed measuring wheel to rotate, the real-time speed is output and can be displayed on an internal and external PLC (programmable logic controller), and the front end has the function of straightening the welding wire; when the input welding wire has a certain curvature, the module can straighten the welding wire to ensure smooth operation, the arranged proximity sensor is used for detecting whether the welding wire exists or not and feeding back to a PLC control signal, and the PLC controller can control the functions of positive and negative rotation and positive and negative inching of the welding wire, displaying real-time speed, wire feeding length and the like.
Description
Technical Field
The utility model belongs to the laser welding technique, concretely relates to wire drive feed unit of laser welding instrument especially relates to the laser brazing that needs the welding wire, and the laser send a melting welding and laser composite welding device.
Background
In the laser welding field, to laser brazing, in the welding process of laser send a fuse welding and laser hybrid welding, the laser welding robot that realizes automatic welding all can involve the conveyor of welding wire, promptly, send a module. The wire feeder is adapted to continuously supply welding wire to a metal surface to be welded and effect a welding operation of the workpiece along a weld.
The existing wire feeding module generally comprises a wire feeding driving wheel and a wire feeding driven wheel, the continuous transmission of welding wires is realized through the combination of the wire feeding driving wheel and the wire feeding driven wheel, in control, the control of the transmission speed of the welding wires is realized by setting the rotating speed of the wire feeding driving wheel, the flexibility of the welding speed is not high, the laser welding speed also needs to depend on the speed of the wire feeding driving wheel to carry out PLC control programming, in the welding process, if the welding wires are required to be supplied in an off-line mode, the welding wires cannot be effectively reminded, the accuracy of bending and adjustment cannot be timely is poor, and the problems that the length control degree of the welding wires is insufficient or cannot be controlled exist.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is that: the utility model provides a wire drive feed unit of laser welding instrument, the device realize the alignment and the length control of having or not detection, welding wire of welding wire and adjust.
The technical scheme is as follows: the utility model provides a wire drive feed unit of laser welding instrument, the device pass through motor gear drive send a action wheel rotatory, send a action wheel drive to send and send a work of following driving wheel, send a action wheel and send a transmission welding wire under the extrusion of following driving wheel, the welding wire drives the tachometer wheel work that the rear end detected a speed in the device, and the real-time speed that the tachometer wheel acquireed transmits to the PLC controller, and the front end is equipped with the alignment knob and the alignment bearing is used for the alignment of welding wire, the device still is equipped with proximity sensor and is used for detecting having or not of welding wire to feed back to the PLC controller, positive and negative rotation, the positive and negative inching of PLC controller control welding wire show real-time speed and send a length.
In the wire feeding device, a graphite copper sleeve is knocked in an inner hole of a wire feeding driving wheel, is fixed on an outer frame of the wire feeding device and is matched with a motor gear.
The wire feeding device is provided with a driven wheel knob, the driven wheel knob is connected with the tensioning block through a pin, the wire feeding device is connected with the driven wheel mounting block through a hinge pin after an inner hole of the driven wheel is knocked by a graphite copper sleeve, the driven wheel mounting block is connected with the tensioning block through the hinge pin, the tensioning block and the knob stop block are fixed on the outer frame through a positioning pin, and the driven wheel knob, the tensioning block, the wire feeding device and the driven wheel mounting block form a rotating body to realize the compression of welding wires.
The device is characterized in that a middle wire guide block is arranged at the rear end of a welding wire passing through a wire feeding driving wheel, and a wire guide nozzle for discharging wires is arranged on the middle wire guide block. Furthermore, the middle guide wire block is fixed on the outer frame.
Furthermore, the tachometer wheel is provided with a tachometer pinch roller in a matching manner, the tachometer wheel is connected with an encoder, the tachometer wheel can rotate freely, and the distance between the tachometer pinch roller and the tachometer pinch roller is adjustable.
Furthermore, the wire feeding device is provided with a rear end fixing plate and a rear end wire guide block arranged on the rear end fixing plate.
The wire feeding device is provided with a front end fixing plate, and a cover plate is arranged on the front end fixing plate in an overturning manner.
The device is used in a welding wire straightening mechanism, and the distance between straightening bearings on the left side and the right side of a welding wire can be adjusted through a straightening knob.
Furthermore, a brushless motor, a PLC (programmable logic controller) and an encoder are further arranged in the outer frame of the wire feeding device, and an internal PLC display screen and an internal PLC control key are arranged on the outer frame.
Has the advantages that: compared with the prior art, laser welding tool's wire drive feed unit be equipped with the PLC controller, including internal control and external outside control programming etc. the complete machine be applicable to stronger, and more nimble, be applicable to among the various high accuracy welding tool. The device has the detection function of measuring the speed, the alignment of welding wire, welding wire interrupt, including to the control of welding wire length, the flexible control of welding wire etc. operation and practicality are all stronger.
Drawings
Fig. 1 is a schematic structural view of a wire feeding device of a laser welding tool according to the present invention.
In the figure: 1. from the driving wheel knob, 2, the knob dog, 3, the tensioning piece, 4, send a action wheel, 5, motor gear, 6, middle wire guide block, 7, the wire guide mouth, 8, the tachometry wheel, 9, the pinch roller tests the speed, 10, the rear end fixed plate, 11, the rear end wire guide block, 12, the welding wire, 13, inside PLC display screen, 14, inside PLC control button, 15, the frame, 16, send a driving wheel, 17, from driving wheel installation piece, 18, the alignment knob, 19, the alignment bearing, 20, the front end fixed plate, 21, proximity sensor, 22, the apron.
Detailed Description
For the purpose of explaining the technical solution disclosed in the present invention in detail, the following description is further made with reference to the accompanying drawings.
The utility model provides a wire drive feed unit of laser welding instrument for the transport of welding wire. The structure is shown in fig. 1.
Wire drive feed unit be equipped with under the encapsulation of frame 15, the bottom of device presents a box body structure, in the inside of frame 15, is equipped with brushless motor, PLC controller and encoder. With the prior art of the welding wire feeding device, firstly, the wire feeding process of the welding wire is completed by a pair of guide wheels, namely the wire feeding driving wheel 4 and the wire feeding driven wheel 16, the welding wire passes through the grooves formed on the wire feeding driving wheel 4 and the wire feeding driven wheel 16, and the welding wire is output from the front end to the rear end under the extrusion action. In this embodiment, the inner holes of the wire feeding driving wheel 4 and the wire feeding driven wheel 16 are knocked by graphite copper sleeves to transmit welding wires, the wire feeding driving wheel 4 is matched with the motor gear 5 fixed on the upper surface of the outer frame 15 to rotate, and the wire feeding driven wheel 16 is matched with the wire feeding driving wheel 4 to compress and rotate.
For the wire feeding driven wheel 16, an adjusting mechanism is arranged, namely a driven wheel knob 1 and a knob stop block 2 are arranged, and the driven wheel knob 1 and the tensioning block 3 are connected through a pin; the tensioning block 3 and the driven wheel mounting block 17 are connected through a hinge pin; the wire feeding driven wheel 16 is connected with the driven wheel mounting block 17 through a hinge pin after an inner hole is knocked with a graphite copper sleeve. The tensioning block 3 is fixed on the outer frame 15 through a positioning pin, and the knob stop block 2 is directly fixed on the outer frame 15. The driven wheel knob 1, the tensioning block 3, the driven wheel mounting block 17 and the wire feeding driven wheel 16 form a rotatable whole, so that the function of compressing the welding wire is realized.
The wire guide nozzle 7 is used for leading the welding wire to pass in and out and guiding the welding wire 12 to pass in and out, the wire guide nozzle 7 is screwed into the middle wire guide block 6 through threads, and the middle wire guide block 6 is directly fixed on the outer frame 15; the middle wire guide block 7 is used for eliminating the exposed length of the welding wire and ensuring that the welding wire cannot be bent.
The encoder is equipped with to the below of tachometer wheel 8, the encoder can be fixed on frame 15, tachometer wheel 8 can freely rotate, in order to realize accurate measuring the speed, prevent that welding wire 12 from appearing phenomenons such as slip displacement on tachometer wheel 8, the cooperation of tachometer wheel 8 is equipped with the pinch roller 9 that tests the speed, the welding wire is through the guide slot between pinch roller 9 and the tachometer wheel 8 that tests the speed, pinch roller 9 that tests the speed is fixed on frame 15, and it is adjustable apart from the distance of tachometer wheel 8, realize more accurate control with this.
The rear end fixing plate 10 of the wire feeder is fixed to the outer frame 15 by pins and screws. The rear-end wire guide block 11 is fixed on the rear-end fixing plate 10 and is used for discharging the welding wire 12 after being clamped by a jackscrew.
Further, as shown in fig. 1, the device is provided with 5 straightening bearings 19, the number of the straightening bearings 19 can be set according to actual needs, and is generally preferably singular, and the straightening effect of the staggered and asymmetric arrangement is the best, the left side shown in fig. 1 is provided with 3, the right side is provided with 2, the left 3 straightening bearings 19 are directly fixed on the outer frame, and the right two straightening bearings 19 are adjustable; the distance between the left and right straightening bearings 19 can be adjusted by the straightening knob 18, and the distance adjustment can be realized by the installation position of the right straightening bearing 19. The front end fixing plate 20 is fixed to the outer frame 15. In this embodiment, the front end is the wire feeding end of the welding wire 12, and the rear end is the wire discharging end. The wire feeding end of the welding wire 12 is provided with a proximity sensor 21 which is directly fixed on the outer frame 15 and used for detecting whether the welding wire exists or not and whether the transmission supply is interrupted or not and feeding back signals to the controller in time.
Finally, for the beauty of the whole machine and the working of the equipment, the components on the outer frame 15 are provided with a cover plate 22, the cover plate 22 is fixed on the front end fixing plate 20 through a positioning pin and can rotate, and the flip design or the sliding design is also included.
Laser welding instrument's thread feeding unit have the alignment, send the function of silk, detection to can be connected with outside PLC controller, also including setting up its self controller, motor gear 5 drives and send a action wheel 4 rotatory, send a action wheel 4 to drive and send a follow driving wheel 16. Both of which deliver the welding wire 12 by compression. The welding wire drives the rear-end tachometer wheel 8 to rotate, outputs real-time speed, and can display on an internal PLC (programmable logic controller) and an external PLC display screen. The front end of the device has the function of straightening the welding wire; when the input welding wire 12 has a certain curvature, the mechanism can straighten the welding wire and ensure smooth operation. The proximity sensor 21 is used for detecting the presence or absence of the welding wire, interruption and the like, and feeding back a signal to the PLC. The PLC controller can control the positive and negative rotation and positive and negative inching of the welding wire 12, and display the real-time speed, the wire feeding length and the like.
Claims (10)
1. The utility model provides a laser welding tool's wire drive feed unit, is equipped with a pair of guide pulley and motor gear (5) on the device, the guide pulley includes send a action wheel (4) and send a follow driving wheel (16), and send a action wheel (4) and send a recess of offering on follow driving wheel (16) and being used for transmitting the welding wire, motor gear (5) are used for driving and send a action wheel (4) rotation, its characterized in that: the device is characterized in that the welding wire drives a speed measuring wheel (8) with the rear end detecting the wire feeding speed to work, the speed measuring wheel (8) is electrically connected with a PLC (programmable logic controller), the front end of the speed measuring wheel is provided with a straightening knob (18) and a straightening bearing (19) for straightening the welding wire, the device is further provided with a proximity sensor (21) for detecting the existence of the welding wire and feeding back the welding wire to the PLC, and the PLC controls the positive and negative rotation and the positive and negative inching of the welding wire.
2. The wire feeder of the laser welding tool according to claim 1, characterized in that: and a graphite copper sleeve is knocked in an inner hole of the wire feeding driving wheel (4), is fixed on an outer frame (15) of the wire feeding device and is matched with the motor gear (5).
3. The wire feeder of the laser welding tool according to claim 1, characterized in that: be equipped with on the wire drive feed unit and be connected with tensioning block (3) from driving wheel knob (1) through the pin, send a wire to strike graphite copper sheathing through hinge pin and connect from driving wheel installation piece (17) after from driving wheel (16) hole, connect tensioning block (3) through hinge pin from driving wheel installation piece (17), and tensioning block (3) and knob dog (2) are fixed on frame (15) through the locating pin, from driving wheel knob (1), tensioning block (3), send a wire to constitute the rotator from driving wheel (16) and from driving wheel installation piece (17), realize that the welding wire compresses tightly.
4. The wire feeder of the laser welding tool according to claim 1, characterized in that: the device is characterized in that a middle wire guide block (6) is arranged at the rear end of a welding wire passing through a wire feeding driving wheel (4), and a wire guide nozzle (7) for discharging wires is arranged on the middle wire guide block (6).
5. The wire feeder of the laser welding tool according to claim 4, characterized in that: the middle guide wire block (6) is fixed on the outer frame (15).
6. The wire feeder of the laser welding tool according to claim 1, characterized in that: the speed measuring wheel (8) is provided with a speed measuring pinch roller (9) in a matching mode, the speed measuring wheel (8) is connected with an encoder, the speed measuring wheel (8) can rotate freely, and the distance between the speed measuring pinch roller (9) and the speed measuring pinch roller is adjustable.
7. The wire feeder of the laser welding tool according to claim 1, characterized in that: the wire feeding device is provided with a rear end fixing plate (10) and a rear end wire guide block (11) arranged on the rear end fixing plate (10).
8. The wire feeder of the laser welding tool according to claim 1, characterized in that: the wire feeding device is provided with a front end fixing plate (20), and a cover plate (22) is arranged on the front end fixing plate (20) in an overturning manner.
9. The wire feeder of the laser welding tool according to claim 1, characterized in that: the device is used in a welding wire straightening mechanism, and the distance between straightening bearings (19) on the left side and the right side of the welding wire can be adjusted through a straightening knob (18).
10. The wire feeder of the laser welding tool according to claim 1, characterized in that: still be equipped with brushless motor, PLC controller and encoder in wire feeding unit's frame (15), be equipped with inside PLC display screen (13) and inside PLC control button (14) on frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123338804.7U CN217071054U (en) | 2021-12-28 | 2021-12-28 | Wire feeding device of laser welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123338804.7U CN217071054U (en) | 2021-12-28 | 2021-12-28 | Wire feeding device of laser welding tool |
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| CN217071054U true CN217071054U (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123338804.7U Active CN217071054U (en) | 2021-12-28 | 2021-12-28 | Wire feeding device of laser welding tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383340A (en) * | 2022-09-19 | 2022-11-25 | 郑州亚丰立得表面技术有限公司 | Continuous welding method suitable for large-coil welding wire |
| CN117381090A (en) * | 2023-11-13 | 2024-01-12 | 北京工业大学 | Material feeding unit suitable for laser material increase manufacturing technique |
| CN117921189A (en) * | 2024-03-18 | 2024-04-26 | 南京英尼格玛工业自动化技术有限公司 | Multi-wavelength light source arc composite laser processing head and method for coaxial wire and powder simultaneous feeding |
-
2021
- 2021-12-28 CN CN202123338804.7U patent/CN217071054U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383340A (en) * | 2022-09-19 | 2022-11-25 | 郑州亚丰立得表面技术有限公司 | Continuous welding method suitable for large-coil welding wire |
| CN115383340B (en) * | 2022-09-19 | 2024-03-19 | 郑州亚丰立得表面技术有限公司 | Continuous welding method suitable for large-disc welding wire |
| CN117381090A (en) * | 2023-11-13 | 2024-01-12 | 北京工业大学 | Material feeding unit suitable for laser material increase manufacturing technique |
| CN117381090B (en) * | 2023-11-13 | 2024-05-07 | 北京工业大学 | Material feeding unit suitable for laser material increase manufacturing technique |
| CN117921189A (en) * | 2024-03-18 | 2024-04-26 | 南京英尼格玛工业自动化技术有限公司 | Multi-wavelength light source arc composite laser processing head and method for coaxial wire and powder simultaneous feeding |
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