CN116652334A - Wire feeding sensor structure for submerged arc welding and use method - Google Patents
Wire feeding sensor structure for submerged arc welding and use method Download PDFInfo
- Publication number
- CN116652334A CN116652334A CN202310943264.XA CN202310943264A CN116652334A CN 116652334 A CN116652334 A CN 116652334A CN 202310943264 A CN202310943264 A CN 202310943264A CN 116652334 A CN116652334 A CN 116652334A
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- Prior art keywords
- wire
- driving gear
- submerged arc
- welding
- sensor structure
- Prior art date
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- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 11
- 230000003068 static effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating 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
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a wire feeding sensor structure for submerged arc welding and a use method thereof, aiming at the problems that the existing wire feeding sensor structure is hard enough to cause inconvenient wire feeding and wire discharging and excessive friction between a welding wire and an inlet and an outlet to cause accumulation of welding wire scraps in the sensor, the invention designs a special wire feeding sensor structure for the submerged arc welding wire; in addition, the invention can effectively solve the problem of insufficient range of the rotary encoder by changing the gear ratio, the higher spacing between the notch and the gears at two sides can effectively prevent the dislocation of welding wires, and the complex wire threading mechanism in the existing sensor structure is abandoned, so that the invention is more convenient.
Description
Technical Field
The invention belongs to the technical field of sensor design, and particularly relates to a wire feeding sensor structure for submerged arc welding and a use method thereof.
Background
In the welding production process, the wire feeding speed directly influences the welding quality and the welding efficiency, but a factory often cannot acquire the wire feeding quantity and the wire feeding speed in the welding production in real time and trace the wire feeding speed afterwards, so that the quality of the field welding quality is difficult to master.
The prior art has related wire feeding sensor structure design, which is composed of five parts: the welding wire feeding device comprises a shell, a measuring wheel, a pressing wheel, a rotary encoder and a conical inlet and outlet, wherein the measuring wheel is coaxial with the rotary encoder, welding wires are pressed on the measuring wheel by the pressing wheel after passing through the conical inlet and outlet, the measuring wheel is driven to rotate when the welding wires move, the rotating speed is converted into a signal output by the rotary encoder, and the linear speed of the welding wires is calculated through a chip.
However, there are new problems in measuring the amount of submerged arc welding wire and wire feeding speed: the submerged arc welding wire has higher bending degree and higher self hardness, and can generate larger abrasion with the inlet and the outlet in the welding wire moving process, thereby causing welding wire scraps to accumulate in the shell and affecting the appearance and the function of the rotary encoder. In addition, compared with the welding wire of argon arc welding or two-protection welding, the welding wire is thicker and not easy to bend, and the existing wire feeding sensor is easy to damage in the wire feeding process. In addition, the existing rotary encoder may have insufficient measuring range when measuring the welding wire consumption, which results in the problem of error in measurement.
Disclosure of Invention
The invention aims to: aiming at the problems in the background art, the invention provides a wire feeding sensor structure for submerged arc welding and a wire feeding method, and aims at the problems of harder welding wires and higher bending degree of the submerged arc welding wires, the wire feeding sensor structure for submerged arc welding is designed, the problems of difficult wire threading and difficult compaction are solved, meanwhile, the range is increased by adopting a gear meshing mode, and fragments generated by welding wire friction are discharged in real time through the design of a hollowed-out grid.
The technical scheme is as follows: a wire feeding sensor structure for submerged arc welding comprises a cover plate, a driven gear, a driving gear, a spring, a connecting rod, a shell, a rotary encoder and a guide shaft;
the cover plate is fixedly connected with the shell, grid-shaped baffles are arranged around the shell and perpendicular to the bottom plate, and a wire inlet and a wire outlet are formed in the left baffle and the right baffle; the cover plate is provided with a guide rail groove; the rotary encoder is arranged on the outer side of the bottom plate of the shell, and the main shaft penetrates into the shell;
the main shaft of the rotary encoder passes through the bending part of the connecting rod and is rotationally connected with the driven gear, the upper part of the connecting rod is connected with the driving gear through the guide shaft, and the relative position of the main shaft and the driven gear is unchanged; the two ends of the driving gear are gears with the same tooth number, and a cylindrical notch is formed in the middle of the driving gear; the lower part of the connecting rod is connected to the bottom of the shell through a spring; the spring is in a compressed state when working.
Further, the guide shaft comprises a front section guide rail head, a middle section fixing part and a rear section screwing part; the driving gear is sleeved on the outer side of the fixing part, the rear-section screwing part is fixedly connected with the upper side of the connecting rod through threads, and the front-section guide rail head is positioned in a guide rail groove preset on the cover plate and used for limiting the driving gear.
Further, the middle notch of the driving gear is coated with an anti-skid sleeve, and welding wires sequentially extend out of the wire feeding sensor through the wire feeding port, the middle notch of the driving gear and the wire outlet.
Further, after the welding wire passes through the notch in the middle of the driving gear, the bending force of the welding wire and the tension of the spring balance, so that the notch and the welding wire are tightly attached to each other, and the friction force is increased; the guide shaft moves vertically with the guide rail groove through the front section guide rail head and keeps vertical with the connecting rod.
The use method of the wire feeding sensor structure for submerged arc welding comprises the steps of drawing out a submerged arc welding wire, feeding the submerged arc welding wire through a wire feeding port on the left side of a shell, and penetrating out the wire feeding port after passing through a notch in the middle of a driving gear; the connecting rod is propped up under the action of a spring and is static under the action of the pressure of the welding wire; the guide rod moves to a corresponding position along the guide rail groove under the drive of the connecting rod; after the welding is started, the driving gear is driven to rotate by the welding wire in the running process through friction force, and then the driven gear and a connected rotary encoder main shaft are driven to rotate; the rotary encoder detects the angular velocity of the drive gear in real time and calculates the wire-out speed, i.e., wire feed speed, based on the outer diameter of the drive gear.
Compared with the prior art, the technical scheme adopted by the invention has the following beneficial effects:
(1) The invention adopts a gear meshing mode to replace the common measuring wheel design in the prior art, can effectively solve the problem of insufficient range of a rotary encoder by changing the gear ratio, combines the characteristics of harder welding wires of submerged arc welding, larger diameter and higher bending degree, can effectively prevent dislocation of welding wires due to higher spacing between a notch and gears on two sides, and eliminates a complex wire threading mechanism in the structure of the conventional sensor, thereby having simple design.
(2) The shell part of the invention adopts a hollowed-out grid design, so that fragments generated by welding wire friction can be discharged in real time, the fragments are prevented from accumulating in the sensor shell, and normal measurement of the sensor is prevented.
(3) According to the invention, the relative positions of the driving gear and the driven gear are fixed by adopting the connecting rod mechanism, under the condition that the meshing relationship of the gears is unchanged, the connecting rod drives the driving gear to move in a certain track and reach balance according to the dynamic balance of the pressure of the welding wire and the tension of the spring, the driving gear can be well limited by the guide shaft, the welding wire with different bending degrees is adapted, meanwhile, the driving gear is ensured to be pressed, and the friction force required by the rotation of the driving gear is provided.
Drawings
FIG. 1 is a front view of a wire feed sensor structure for submerged arc welding provided by the invention;
FIG. 2 is an exploded view of the wire feed sensor structure for submerged arc welding provided by the invention.
Reference numerals illustrate:
1-a cover plate; 2-driven gears; 3-a drive gear; 4-a spring; 5-connecting rods; 6-a housing; 7-a rotary encoder; 8-a guide shaft.
Description of the embodiments
The invention provides a wire feeding sensor structure for submerged arc welding, which aims at the problems that welding wires used in submerged arc welding are hard, wire feeding and wire discharging are inconvenient due to the adoption of the existing wire feeding sensor structure, meanwhile, welding wire scraps are accumulated in a sensor due to overlarge friction between welding wires and an inlet and an outlet, and the special wire feeding sensor structure for the submerged arc welding wires is designed, and meanwhile, the problems that the welding wires of the existing sensor structure are inconvenient to thread and the range of a photoelectric encoder is limited are solved, and the structure is particularly shown in fig. 1-2.
The sensor comprises a cover plate 1, a driven gear 2, a driving gear 3, a spring 4, a connecting rod 5, a shell 6, a rotary encoder 7 and a guide shaft 8. The integral structure is divided into a front end measuring part and a rear end rotary encoder part. The measuring part comprises a sensor shell consisting of a cover plate 1 and a shell 6; grid-shaped baffles are arranged around the shell 6 perpendicular to the bottom plate, and a wire inlet and a wire outlet are respectively formed in the baffles on the left side and the right side. The rotary encoder 7 is mounted outside the base plate through which the spindle passes into the sensor housing.
The measuring mechanism is arranged inside the sensor shell and comprises a driven gear 2, a driving gear 3, a spring 4, a connecting rod 5 and a guide shaft 8. The upper side of the connecting rod 5 is connected with the driving gear 3, and the lower side is connected with the side plate of the shell 6 through the spring 4. The bending part of the connecting rod 5 is fixedly connected with the driven gear 2.
As shown in fig. 2, the invention realizes the measurement of the welding wire consumption by transmitting rotation in a gear transmission mode. Wherein the two ends of the driving gear 3 are gears with the same tooth number, the surface of the middle cylindrical notch is coated with an anti-skid sleeve, and the welding wire is directly contacted with the anti-skid sleeve to drive the driving gear 3 to rotate. The driving gear is meshed with the lower driven gear 2 to drive the driven gear 2 to rotate. The guide shaft 8 comprises a front section guide rail head, a middle section fixing part and a rear section screwing part, the driving gear 3 is sleeved on the fixing part, the rear section screwing part is fixedly connected with the upper side of the connecting rod 5 through threads, and the front section guide rail head is positioned in a preset guide rail groove on the cover plate 1 and used for limiting the driving gear.
The driven gear 2 is a hollow cylindrical gear, and a main shaft of the rotary encoder 7 passes through the bending part of the connecting rod 5 and is fixedly connected with the driven gear 2 in the axial direction.
When the submerged arc welding wire feeding sensor is used, the submerged arc welding wire penetrates into the wire feeding sensor from the left side, and can be pressed on the notch through self stress due to the high bending degree of the submerged arc welding wire. The lower spring 4 is in a compressed state, and when the driving gear 3 receives the downward pressure of the welding wire, the guide shaft, the driving gear and the connecting rod are stabilized at a certain position in the guide rail through the tension of the spring. When the welding wire moves, the driving gear 3 and the driven gear 2 are driven to rotate by self pressure, the rotary encoder 7 and the driven gear 2 coaxially rotate, the rotation speed is converted into signal output, and the linear speed of the welding wire and the welding wire consumption are calculated through a chip.
In the embodiment, the rotation speed is transmitted in a gear meshing mode, and when the measuring range of the rotary encoder is short, the rotation quantity of the main shaft of the rotary encoder can be changed by changing the gear tooth ratio, so that the measuring range of the sensor is increased.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. The wire feeding sensor structure for submerged arc welding is characterized by comprising a cover plate, a driven gear, a driving gear, a spring, a connecting rod, a shell, a rotary encoder and a guide shaft;
the cover plate is fixedly connected with the shell, grid-shaped baffles are arranged around the shell and perpendicular to the bottom plate, and a wire inlet and a wire outlet are formed in the left baffle and the right baffle; the cover plate is provided with a guide rail groove; the rotary encoder is arranged on the outer side of the bottom plate of the shell, and the main shaft penetrates into the shell;
the main shaft of the rotary encoder passes through the bending part of the connecting rod and is rotationally connected with the driven gear, the upper part of the connecting rod is connected with the driving gear through the guide shaft, and the relative position of the main shaft and the driven gear is unchanged; the two ends of the driving gear are gears with the same tooth number, and a cylindrical notch is formed in the middle of the driving gear; the lower part of the connecting rod is connected to the bottom of the shell through a spring; the spring is in a compressed state when working.
2. The wire feed sensor structure for submerged arc welding according to claim 1, wherein the guide shaft comprises a front guide head, a middle fixing part and a rear screwing part; the driving gear is sleeved on the outer side of the fixing part, the rear-section screwing part is fixedly connected with the upper side of the connecting rod through threads, and the front-section guide rail head is positioned in a guide rail groove preset on the cover plate and used for limiting the driving gear.
3. The wire feeding sensor structure for submerged arc welding according to claim 1, wherein the middle notch of the driving gear is coated with an anti-skid sleeve, and welding wires sequentially extend out of the wire feeding sensor through the wire inlet, the middle notch of the driving gear and the wire outlet.
4. The wire feeding sensor structure for submerged arc welding according to claim 3, wherein after the welding wire passes through the notch in the middle of the driving gear, the bending force and the spring tension of the welding wire are balanced, so that the notch is tightly attached to the welding wire, and the friction force is increased; the guide shaft moves vertically with the guide rail groove through the front section guide rail head and keeps vertical with the connecting rod.
5. The wire feed sensor structure for submerged arc welding of claim 1, wherein the driven gear is a cylindrical gear.
6. A method for using the wire feed sensor structure for submerged arc welding according to any one of claims 1 to 5, wherein the submerged arc welding wire is drawn out and fed through a wire feed port on the left side of the shell, and passes through a notch in the middle of the driving gear and then passes through the wire feed port; the connecting rod is propped up under the action of a spring and is static under the action of the pressure of the welding wire; the guide rod moves to a corresponding position along the guide rail groove under the drive of the connecting rod; after the welding is started, the driving gear is driven to rotate by the welding wire in the running process through friction force, and then the driven gear and a connected rotary encoder main shaft are driven to rotate; the rotary encoder detects the angular velocity of the drive gear in real time and calculates the wire-out speed, i.e., wire feed speed, based on the outer diameter of the drive gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943264.XA CN116652334B (en) | 2023-07-31 | 2023-07-31 | Wire feeding sensor structure for submerged arc welding and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943264.XA CN116652334B (en) | 2023-07-31 | 2023-07-31 | Wire feeding sensor structure for submerged arc welding and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116652334A true CN116652334A (en) | 2023-08-29 |
| CN116652334B CN116652334B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310943264.XA Active CN116652334B (en) | 2023-07-31 | 2023-07-31 | Wire feeding sensor structure for submerged arc welding and use method |
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| CN (1) | CN116652334B (en) |
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| CN116652334B (en) | 2023-09-22 |
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