Welding device for fixing shear reinforcement with automatic positioning function

Abstract

The application discloses a welding device with automatic positioning function for fixing shear reinforcement and relates to the technical field of welding devices for fixing shear reinforcement. The welding device comprises a base frame, an electric sliding frame, an electric turntable, a fixing frame, an adjusting base, a high-precision welding assembly, a driven turntable, a rotating support and a rotating cylinder. Different extrusion forces of different particle sizes of welding slag on the scraper plate during scraping are converted into the displacement of the detection rod. The detection rod extrudes the hydraulic oil in the sliding cavity into the extrusion cavity, so that the piston is pressed to slide and extrude the force transmission spring. The force transmission spring transmits the pressure to the piezoelectric body through the backing plate, so that the piezoelectric body generates an electric signal under pressure. The control system analyzes the amount of welding slag according to the electric signal curve, and then judges the welding temperature of the electric welding device. When the welding temperature of the electric welding device is relatively high, the control system adjusts the welding temperature, prevents the metal from being excessively melted and splashed, and avoids the influence of the excessively high temperature on the subsequent welding quality.

Description

Technical Field

[0001] This invention relates to the technical field of welding devices for fixing shear reinforcement, specifically a welding device for fixing shear reinforcement with automatic positioning function. Background Technology

[0002] In reinforced concrete structures, shear reinforcement is often used to compensate for insufficient shear capacity of concrete. Spiral reinforcement, a type of shear reinforcement, needs to be wound around longitudinal reinforcement bars and the joints welded together to form a complete steel cage structure. Traditionally, welding of shear reinforcement bars in steel cages is done manually, which is time-consuming and labor-intensive. To improve welding efficiency, many steel cage welding machines have emerged on the market. These machines can automatically weld longitudinal reinforcement bars and spiral reinforcement bars together to form a cylindrical steel skeleton, helping construction companies reduce production costs.

[0003] However, existing rebar cage welding machines typically require two drive sources during welding. One drive source moves the rebar, while the other moves the welding device along a preset path, following the rebar cage for welding. While this method allows for rapid welding without reducing the rebar rotation speed, over extended periods, a movement difference develops between the systems driving the rebar and the welding device. This causes the welding position to shift, resulting in substandard weld quality and significant economic losses. Furthermore, existing welding machines lack effective means of monitoring welding temperature, making them prone to slag spatter. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for fixing shear bars with an automatic positioning function, so as to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for fixing shear reinforcement with automatic positioning function, comprising a support assembly, an adjusting base on one side of the support assembly, a welding control bearing base mounted on the adjusting base, a precision welding traction assembly slidably mounted on the welding control bearing base, an electric welding device slidably mounted on the welding control bearing base, and a slag collection assembly mounted on the welding control bearing base; the precision welding traction assembly is connected to the electric welding device; the precision welding traction assembly includes an L-shaped sliding plate and a damping element; a roller is rotatably mounted on the L-shaped sliding plate, the damping element is mounted at the bottom of the electric welding device, the L-shaped sliding plate is slidably mounted on one side of the welding control bearing base, and a traction rope is connected between the damping element and the L-shaped sliding plate; during the rotation of the longitudinal reinforcement, the roller drives the L-shaped sliding plate to slide downwards, and the L-shaped sliding plate drives the damping element to move horizontally via the traction rope; the damping element drives the electric welding device to move, so that the electric welding device and the slag collection assembly cooperate to shield, detect, and collect welding slag.

[0006] The welding device is connected to an external control box, which contains a control system for controlling the entire welding device. The electric welding device is equipped with a welding head. Before production, the operator adjusts the position of the welding head so that when the rib to be welded is in the welding position, the welding head is aligned with the intersection of the rib to be welded and the spiral rib.

[0007] The damping element is an elastic reducer, which is installed at the bottom of the electric welding device. One end of the elastic reducer is connected to a return spring, which is connected to the welding control bearing base. The other end of the elastic reducer is connected to a traction rope, which is connected to an L-shaped slide plate.

[0008] The L-shaped skateboard is symmetrically equipped with a tripod, on which a roller is rotatably mounted. A support block is mounted on the welding control bearing base, and a guide wheel is rotatably mounted on the support block. The traction rope is slidably connected to the guide wheel.

[0009] A belt consists of a belt and rollers.

[0010] The longitudinal steel bars that have been welded and have moved the triangular frame downwards are called transmission ribs. The longitudinal steel bars that are in contact with the electric welding device and are being welded are called ribs to be welded. The ribs to be welded are adjacent to the transmission ribs and are located above the transmission ribs. When the ribs to be welded are finished, the transmission ribs rotate away from the roller, and the ribs to be welded become the next transmission ribs, and so on.

[0011] When the drive rib rotates to the position of the roller, with further rotation, the drive rib drives the roller to move downwards via the roller. The roller drives the triangular frame and L-shaped slide plate to move downwards. The L-shaped slide plate pulls the elastic reducer via the traction rope. The elastic reducer drives the electric welding device to move on the horizontal slide and approach the rib to be welded, and the return spring is stretched. When the electric welding device approaches the rib to be welded to a preset distance, the control system controls the electric sliding frame and electric turntable to decelerate and start the electric welding device. The electric welding device welds the junction of the spiral rib and the rib to be welded. During welding, the collection plate shields and collects the welding slag generated during welding to prevent slag splashing, improve welding quality and production safety. After welding is completed, the control system restores the speed of the electric sliding frame and electric turntable, and the drive rib slides away from the roller.

[0012] After the transmission rib slips off the roller, the return spring contracts and drives the electric welding device to retract and reset through the elastic reducer. Due to the damping effect of the elastic reducer, the retraction speed of the electric welding device is slowed down, avoiding the electric welding device from colliding with the welding control bearing base due to excessive retraction speed.

[0013] Furthermore, the welding control bearing base is provided with a vertical slide rail and a horizontal slide rail. The electric welding device is slidably connected to the horizontal slide rail. The welding control bearing base is provided with a damping slide rail and a material discharge port. The welding control bearing base is provided with a material collection chamber. The material discharge port is connected to the material collection chamber. The L-shaped slide plate is slidably connected to the vertical slide rail. The elastic reducer is slidably connected to the damping slide rail.

[0014] Furthermore, the slag collection assembly includes a collection plate and a slag scraping pressure sensor. The two collection plates are symmetrically installed on both sides of the electric welding device, and the two slag scraping pressure sensors are symmetrically installed on the welding control support base.

[0015] Furthermore, the slag sensing and collecting assembly also includes side plates, which are symmetrically mounted on the welding control support base, with the slag scraping pressure sensor located between the side plates and the collecting plate.

[0016] Furthermore, the bracket assembly includes a base frame, an electric sliding frame slidably mounted on the base frame, an electric turntable rotatably mounted on the electric sliding frame, a fixed frame mounted on the base frame, a driven turntable rotatably mounted on the fixed frame, a rotating bracket rotatably mounted on the base frame, and a rotating cylinder provided on one side of the base frame.

[0017] The electric sliding frame can slide on the base frame; the electric turntable can rotate on the electric sliding frame; the rotating bracket is used to provide support for the longitudinal reinforcing bars; the rotating drum is used to wind the spiral reinforcement.

[0018] During operation, one end of the longitudinal steel bar is first passed through the driven turntable and fixed with the buckle on the electric turntable. The other end of the longitudinal steel bar is placed on the rotating support. Then, the end of the spiral bar is connected to the end of the longitudinal steel bar closest to the electric turntable. After that, the control system activates the electric sliding frame and the electric turntable. The electric turntable drives several longitudinal steel bars to rotate synchronously. The electric sliding frame moves slowly on the base frame, causing several longitudinal steel bars to move horizontally and rotate simultaneously. Under this motion mode, the spiral bar spirally winds several longitudinal steel bars. The spiral bar is wound at equal intervals without the need for additional positioning devices, thus realizing the function of automatic positioning and arrangement of the spiral bar.

[0019] Furthermore, the elastic reducer includes a reduction housing, which is installed at the bottom of the electric welding device. A slide rod is slidably installed inside the reduction housing, and a compression spring is installed between the slide rod and the reduction housing. A friction plate is installed at one end of the slide rod, and the friction plate is slidably connected to the damping slide rail.

[0020] When the compression spring is in a compressed state, it compresses the slide rod. The slide rod drives the friction plate to always keep it in close contact with the side wall of the damping slide. When the friction plate moves with the elastic reducer, the friction plate rubs against the side wall of the damping slide. Under the action of friction, the moving speed of the elastic reducer is reduced, thus achieving a damping effect.

[0021] Furthermore, the slag scraper pressure sensor includes a compression shell, which is mounted on a welding control support base. Several sliding shells are installed on one side of the compression shell. The compression shell has a squeezing chamber, and the sliding shells have sliding chambers. The squeezing chamber and the sliding chamber are connected. A detection rod is slidably installed in the sliding chamber. A scraper plate is installed at one end of the detection rod. A converter is provided at the top of the squeezing chamber. Both the sliding chamber and the squeezing chamber are filled with hydraulic oil.

[0022] Furthermore, the converter includes a piston and a pad. The piston is slidably installed in the extrusion chamber, the pad is slidably connected to the extrusion chamber, a piezoelectric element is installed between the pad and the extrusion chamber, and a force-transmitting spring is installed between the pad and the piston.

[0023] When the electric welding device retracts, it also retracts the collecting plate. The inner wall of the collecting plate is covered with solidified welding slag. When the collecting plate slides past the scraper plate, the scraper plate scrapes off the welding slag on the collecting plate. The falling welding slag enters the collecting chamber through the discharge port and is collected, achieving the purpose of automatic cleaning of the collecting plate and collection of welding slag. When the scraper plate scrapes off the welding slag, it is squeezed by the welding slag, which drives the detection rod to move until the welding slag is scraped off. The detection rod moves in the sliding chamber, squeezing the hydraulic oil in the sliding chamber into the extrusion chamber. The pressure in the extrusion chamber increases, which in turn squeezes the piston at the top. After being compressed, the piston slides upward along the sliding chamber and squeezes the force transmission spring. The force transmission spring is compressed and transmits the pressure to the piezoelectric element through the pad. The piezoelectric element generates an electrical signal when it is compressed.

[0024] The larger the particle size of the welding slag, the greater the extrusion pressure exerted on the scraper blade during removal, resulting in a longer scraper blade movement distance, more hydraulic oil extruded by the detection rod, a larger piston displacement, and a stronger electrical signal generated by the piezoelectric element under pressure. Throughout the scraping process, the varying particle sizes of the welding slag cause the piezoelectric element to generate fluctuating electrical signal curves. The control system analyzes these curves to calculate the average electrical signal value. When the average value is less than the standard value, it indicates a reasonable welding temperature and normal slag quantity. Conversely, when the average value is greater than the standard value, it indicates excessive slag and a high welding temperature in the electric welding device, leading to excessive metal melting and spatter. The control system adjusts the welding temperature based on the average electrical signal value to prevent excessive heat from affecting subsequent welding quality.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. The rotation of the longitudinal reinforcing bars drives the movement of the roller belt, which in turn drives the electric welding device forward via a traction rope, thereby achieving welding of the longitudinal reinforcing bars and the bars to be welded. This saves power and improves welding accuracy, ensuring that each weld is aligned with the welding position for precise welding. At the same time, the design of the rollers and roller belts avoids direct friction between the transmission bars and the roller belts, preventing wear on the roller belts.

[0027] 2. By using a compression spring, the friction plate and the side wall of the damping slide are kept in close contact. When the friction plate retracts with the elastic reducer, friction is generated between the friction plate and the side wall of the damping slide. Under the action of friction, the moving speed of the elastic reducer is reduced, which achieves a damping effect. Ultimately, this achieves the purpose of slowing down the retraction speed of the electric welding device, avoiding the electric welding device from colliding with the welding control bearing base due to excessive retraction speed, and improving the service life of the structure.

[0028] 3. During welding, the collecting plate shields and collects the welding slag generated during welding, preventing slag from splashing and improving welding quality and production safety. When the electric welding device retracts, it simultaneously drives the collecting plate and the scraping detector to alternate. The scraper plate scrapes the welding slag on the collecting plate, and the falling welding slag enters the collection chamber from the feeding port and is collected, achieving the purpose of automatic cleaning of the collecting plate and collection of welding slag.

[0029] 4. The different extrusion forces exerted on the scraper plate by welding slag of different particle sizes during scraping are converted into the displacement of the detection rod. The detection rod forces the hydraulic oil in the sliding chamber into the extrusion chamber, causing the piston to slide under pressure and compressing the force transmission spring. The force transmission spring transmits the pressure to the piezoelectric element through the pad, causing the piezoelectric element to generate an electrical signal. The control system analyzes the amount of welding slag based on the electrical signal curve, and then determines the welding temperature of the electric welding device. When the welding temperature of the electric welding device is too high, the control system adjusts the welding temperature to prevent excessive melting and splashing of metal, and to avoid the temperature from affecting the subsequent welding quality. Attached Figure Description

[0030] Figure 1 This is a perspective view of the welding apparatus of the present invention;

[0031] Figure 2 The three-dimensional representation of the high-precision welding assembly of the present invention Figure 1 ;

[0032] Figure 3 The three-dimensional representation of the high-precision welding assembly of the present invention Figure 2 ;

[0033] Figure 4 This is a perspective view of the main body of the present invention;

[0034] Figure 5 This is a perspective view of the roller of the present invention;

[0035] Figure 6 This is a perspective view of the precision welding and traction assembly of the present invention;

[0036] Figure 7 This is a perspective view of the elastic reducer of the present invention;

[0037] Figure 8 This is a perspective view of the scraping detector of the present invention;

[0038] Figure 9 For the present invention Figure 8 A magnified view of a portion of region A.

[0039] In the diagram: 1. Support assembly; 2. Adjustable base; 3. Welding control bearing base; 4. Precision welding swivel assembly; 5. Electric welding device; 6. Slag sensing and collecting assembly; 61. Collection plate; 62. Slag scraper pressure sensor; 63. Side plate; 11. Base frame; 12. Electric sliding frame; 13. Electric turntable; 14. Fixed frame; 15. Driven turntable; 16. Rotating support; 17. Rotary cylinder; 31. Vertical slide rail; 32. Discharge port; 33. Damping slide rail; 34. Horizontal slide rail; 41. L-shaped sliding plate; 42. 44. Tripod; 45. Roller belt; 46. Support block; 47. Guide wheel; 48. Traction rope; 49. Elastic reducer; 40. Return spring; 41. Reduction housing; 42. Compression spring; 483. Slide rod; 484. Friction plate; 621. Compression housing; 622. Sliding housing; 623. Detection rod; 624. Scraper plate; 625. Converter; 626. Sliding cavity; 627. Compression cavity; 6251. Piston; 6252. Force transmission spring; 6253. Pad; 6254. Piezoelectric element. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figures 1-9 As shown, the present invention provides a technical solution for a welding device for fixing shear reinforcement with automatic positioning function: it includes a support assembly 1, an adjusting base 2 on one side of the support assembly 1, a welding control bearing base 3 mounted on the adjusting base 2, a precision welding traction assembly 4 slidably mounted on the welding control bearing base 3, an electric welding device 5 slidably mounted on the welding control bearing base 3, a slag collection assembly 6 mounted on the welding control bearing base 3, and the precision welding traction assembly 4 connected to the electric welding device 5; the precision welding traction assembly 4 includes an L-shaped sliding plate 41 and a damping element, the L-shaped... A roller belt 44 is rotatably mounted on the slide plate 41. A damping element is installed at the bottom of the electric welding device 5. The L-shaped slide plate 41 is slidably mounted on one side of the welding control bearing base 3. A traction rope 47 is connected between the damping element and the L-shaped slide plate 41. During the rotation of the longitudinal steel bar, the roller belt 44 drives the L-shaped slide plate 41 to slide downward. The L-shaped slide plate 41 drives the damping element to move horizontally through the traction rope 47. The damping element drives the electric welding device 5 to move, so that the electric welding device 5 cooperates with the slag sensing and collecting component 6 to shield, detect and collect the welding slag.

[0042] The welding device is connected to an external control box, which contains a control system for controlling the entire welding device. The electric welding device 5 is equipped with a welding head. Before production, the operator adjusts the position of the welding head so that when the rib to be welded is in the welding position, the welding head is aligned with the intersection of the rib to be welded and the spiral rib.

[0043] The damping element is an elastic reducer 48, which is installed at the bottom of the electric welding device 5. One end of the elastic reducer 48 is connected to a return spring 49, which is connected to the welding control bearing base 3. The other end of the elastic reducer 48 is connected to a traction rope 47, which is connected to an L-shaped slide plate 41.

[0044] A tripod 42 is symmetrically provided on the L-shaped slide plate 41. A roller 44 is rotatably mounted on the tripod 42. A support block 45 is installed on the welding control bearing base 3. A guide wheel 46 is rotatably mounted on the support block 45. The traction rope 47 is slidably connected to the guide wheel 46.

[0045] The roller belt 44 consists of a belt and rollers.

[0046] The longitudinal steel bars that have been welded and have moved the triangular frame 42 downwards are the transmission bars. The longitudinal steel bars that come into contact with the electric welding device 5 and are welded are the bars to be welded. The bars to be welded are adjacent to the transmission bars and are located above the transmission bars. When the bars to be welded are finished, the transmission bars rotate away from the roller 44, and the bars to be welded become the next transmission bars, and so on.

[0047] The welding control support base 3 is provided with a vertical slide rail 31 and a horizontal slide rail 34. The electric welding device 5 is slidably connected to the horizontal slide rail 34. The welding control support base 3 is provided with a damping slide rail 33 and a material discharge port 32. The welding control support base 3 is provided with a material collection chamber. The material discharge port 32 is connected to the material collection chamber. The L-shaped slide plate 41 is slidably connected to the vertical slide rail 31. The elastic reducer 48 is slidably connected to the damping slide rail 33.

[0048] The slag collection assembly 6 includes a collection plate 61 and a slag scraping pressure sensor 62. The two collection plates 61 are symmetrically installed on both sides of the electric welding device 5, and the two slag scraping pressure sensors 62 are symmetrically installed on the welding control support base 3.

[0049] The slag collection assembly 6 also includes a side plate 63, which is symmetrically mounted on the welding control support base 3, and the slag scraping pressure sensor 62 is located between the side plate 63 and the collection plate 61.

[0050] The bracket assembly 1 includes a base frame 11, an electric sliding frame 12 slidably mounted on the base frame 11, an electric turntable 13 rotatably mounted on the electric sliding frame 12, a fixed frame 14 mounted on the base frame 11, a driven turntable 15 rotatably mounted on the fixed frame 14, a rotating bracket 16 rotatably mounted on the base frame 11, and a rotating cylinder 17 provided on one side of the base frame 11.

[0051] The electric sliding frame 12 can slide on the base frame 11; the electric turntable 13 can rotate on the electric sliding frame 12; the rotating bracket 16 is used to provide support for the longitudinal reinforcing bars; the rotating drum 17 is used to wind the spiral reinforcement.

[0052] The elastic reducer 48 includes a reduction housing 481, which is installed at the bottom of the electric welding device 5. A slide rod 483 is slidably installed inside the reduction housing 481. A compression spring 482 is installed between the slide rod 483 and the reduction housing 481. A friction plate 484 is installed at one end of the slide rod 483, and the friction plate 484 is slidably connected to the damping slide rail 33.

[0053] The compression spring 482 is in a compressed state, which compresses the slide rod 483. The slide rod 483 drives the friction plate 484 to always keep in close contact with the side wall of the damping slide 33. When the friction plate 484 moves with the elastic reducer 48, the friction plate 484 rubs against the side wall of the damping slide 33. Under the action of friction, the moving speed of the elastic reducer 48 is reduced, thus achieving a damping effect.

[0054] The slag scraper pressure sensor 62 includes a compression shell 621, which is mounted on the welding control support base 3. Several sliding shells 622 are installed on one side of the compression shell 621. The compression shell 621 has a squeezing chamber 627 inside, and the sliding shells 622 have sliding chambers 626 inside. The squeezing chamber 627 is connected to the sliding chamber 626. A detection rod 623 is slidably installed in the sliding chamber 626. A scraper plate 624 is installed at one end of the detection rod 623. A converter 625 is provided at the top of the squeezing chamber 627. Both the sliding chamber 626 and the squeezing chamber 627 are filled with hydraulic oil.

[0055] The converter 625 includes a piston 6251 and a pad 6253. The piston 6251 is slidably installed in the extrusion chamber 627. The pad 6253 is slidably connected to the extrusion chamber 627. A piezoelectric element 6254 is installed between the pad 6253 and the extrusion chamber 627. A force transmission spring 6252 is installed between the pad 6253 and the piston 6251.

[0056] The working principle of this invention is as follows: During operation, one end of the longitudinal steel bar is first passed through the driven turntable 15 and fixed with the buckle on the electric turntable 13. The other end of the longitudinal steel bar is placed on the rotating support 16. Then, the end of the spiral bar is connected to the end of the longitudinal steel bar near the electric turntable 13. After that, the control system activates the electric sliding frame 12 and the electric turntable 13. The electric turntable 13 drives several longitudinal steel bars to rotate synchronously. The electric sliding frame 12 moves slowly on the base frame 11, causing several longitudinal steel bars to generate a movement trajectory that moves horizontally and rotates at the same time. Under this movement mode, the spiral bar spirally winds several longitudinal steel bars. The spiral bar is wound at equal intervals without the need for additional positioning devices, thus realizing the function of automatic positioning and arrangement of the spiral bar.

[0057] When the transmission rib rotates to the position of the roller 44, it contacts the roller 44. With further rotation, the transmission rib drives the L-shaped slide plate 41 downward through the roller 44. The L-shaped slide plate 41 pulls the elastic reducer 48 through the traction rope 47. The elastic reducer 48 drives the electric welding device 5 to move on the horizontal slide rail 34 and approach the rib to be welded, and the return spring 49 is stretched. When the electric welding device 5 approaches the rib to be welded to a preset distance, the control system controls the electric sliding frame 12 and the electric turntable 13 to decelerate and starts the electric welding device 5. The electric welding device 5 welds the junction of the spiral rib and the rib to be welded. During welding, the collecting plate shields and collects the welding slag generated during welding to prevent slag from splashing and improve welding quality and production safety. After welding is completed, the control system restores the rotation speed of the electric sliding frame 12 and the electric turntable 13, and the transmission rib slides away from the roller 44.

[0058] During the contact between the transmission rib and the roller 44, the belt rotates on the drum due to friction. The arrangement of the drum and belt avoids direct friction between the transmission rib and the roller 44, preventing wear on the roller 44. After the transmission rib slips off the roller 44, the return spring 49 contracts and drives the electric welding device 5 to retract and reset through the elastic reducer 48. Due to the damping effect of the elastic reducer 48, the retraction speed of the electric welding device 5 is slowed down, preventing the electric welding device 5 from colliding with the welding control support base 3 due to excessive retraction speed.

[0059] When the electric welding device 5 retracts, it drives the collecting plate to retract as well. The inner wall of the collecting plate is covered with solidified welding slag. When the collecting plate slides past the scraper plate 624, the scraper plate 624 scrapes off the welding slag on the collecting plate. The falling welding slag enters the collecting chamber through the discharge port 32 and is collected, achieving the purpose of automatic cleaning of the collecting plate and collection of welding slag. When the scraper plate 624 scrapes off the welding slag, it is squeezed by the welding slag, which drives the detection rod 623 to move until the welding slag is scraped off. The detection rod 623 moves in the sliding chamber 626, squeezing the hydraulic oil in the sliding chamber 626 into the extrusion chamber 627. The pressure in the extrusion chamber 627 increases, which squeezes the piston 6251 at the top. After being compressed, the piston 6251 slides upward along the sliding chamber 626 and squeezes the force transmission spring 6252. The force transmission spring 6252 is compressed and transmits the pressure through the pad plate 6253 to the piezoelectric element 6254. The piezoelectric element 6254 generates an electrical signal when it is compressed.

[0060] The larger the particle size of the welding slag, the greater the extrusion pressure exerted by the scraper plate 624 during scraping, resulting in a greater distance the scraper plate 624 moves, more hydraulic oil is extruded by the detection rod 623, a greater displacement of the piston 6251, and a stronger electrical signal generated by the piezoelectric element 6254 under pressure. Throughout the scraping process, due to the varying particle sizes of the welding slag, the piezoelectric element 6254 generates a fluctuating electrical signal curve. The control system analyzes the electrical signal curve to calculate the average electrical signal value. When the average electrical signal value is less than the standard value, it indicates that the welding temperature is reasonable and the amount of welding slag is normal. When the average electrical signal value is greater than the standard value, it indicates that there is a lot of welding slag, and the welding temperature of the electric welding device 5 is too high, causing excessive molten metal and spatter. The control system adjusts the welding temperature based on the average electrical signal value to prevent excessive temperature from affecting the subsequent welding quality.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A welding device for fixing a shear bar with an automatic positioning function, characterized by: The welding device includes a support assembly (1), an adjusting base (2) on one side of the support assembly (1), a welding control bearing base (3) mounted on the adjusting base (2), a precision welding swivel assembly (4) slidably mounted on the welding control bearing base (3), an electric welding device (5) slidably mounted on the welding control bearing base (3), and a slag collection assembly (6) mounted on the welding control bearing base (3). The precision welding swivel assembly (4) is connected to the electric welding device (5). The precision welding swivel assembly (4) includes an L-shaped sliding plate (41) and a damping element. A rotating mounting plate is installed on the L-shaped sliding plate (41). Equipped with a roller belt (44), the damping element is installed at the bottom of the electric welding device (5), and the L-shaped slide plate (41) is slidably installed on one side of the welding control bearing base (3). A traction rope (47) is connected between the damping element and the L-shaped slide plate (41). During the rotation of the longitudinal steel bar, the roller belt (44) drives the L-shaped slide plate (41) to slide downward. The L-shaped slide plate (41) drives the damping element to move horizontally through the traction rope (47). The damping element drives the electric welding device (5) to move, so that the electric welding device (5) and the slag collection assembly (6) cooperate to shield, detect and collect the welding slag.

2. The welding apparatus for fixing a shear bar with an automatic positioning function according to claim 1, characterized in that: The damping element is an elastic reducer (48), which is installed at the bottom of the electric welding device (5). One end of the elastic reducer (48) is connected to a return spring (49), which is connected to the welding control bearing base (3). The other end of the elastic reducer (48) is connected to a traction rope (47), which is connected to an L-shaped slide plate (41).

3. The welding device for fixing shear reinforcement with automatic positioning function according to claim 1, characterized in that: The L-shaped slide (41) is symmetrically provided with a tripod (42), a roller (44) is rotatably installed on the tripod (42), a support block (45) is installed on the welding control bearing base (3), a guide wheel (46) is rotatably installed on the support block (45), and the traction rope (47) is slidably connected to the guide wheel (46).

4. The welding device for fixing shear reinforcement with automatic positioning function according to claim 2, characterized in that: The welding control support base (3) is provided with a vertical slide rail (31) and a horizontal slide rail (34). The electric welding device (5) is slidably connected to the horizontal slide rail (34). The welding control support base (3) is provided with a damping slide rail (33). The welding control support base (3) is provided with a discharge port (32). The welding control support base (3) is provided with a material collection chamber. The discharge port (32) is connected to the material collection chamber. The L-shaped slide plate (41) is slidably connected to the vertical slide rail (31). The elastic reducer (48) is slidably connected to the damping slide rail (33).

5. A welding device for fixing shear reinforcement with automatic positioning function according to claim 4, characterized in that: The slag collection assembly (6) includes a collection plate (61) and a slag scraper pressure sensor (62). The two collection plates (61) are symmetrically installed on both sides of the electric welding device (5), and the two slag scraper pressure sensors (62) are symmetrically installed on the welding control support base (3).

6. A welding device for fixing shear reinforcement with automatic positioning function according to claim 5, characterized in that: The slag sensing and collecting assembly (6) also includes a side plate (63), which is symmetrically installed on the welding control bearing base (3), and the slag scraping pressure sensor (62) is located between the side plate (63) and the collecting plate (61).

7. A welding device for fixing shear reinforcement with automatic positioning function according to claim 1, characterized in that: The bracket assembly (1) includes a base frame (11), an electric sliding frame (12) is slidably mounted on the base frame (11), an electric turntable (13) is rotatably mounted on the electric sliding frame (12), a fixed frame (14) is mounted on the base frame (11), a driven turntable (15) is rotatably mounted on the fixed frame (14), a rotating bracket (16) is rotatably mounted on the base frame (11), and a rotating cylinder (17) is provided on one side of the base frame (11).

8. A welding device for fixing shear reinforcement with automatic positioning function according to claim 2, characterized in that: The elastic reducer (48) includes a reduction housing (481), which is installed at the bottom of the electric welding device (5). A slide rod (483) is slidably installed inside the reduction housing (481). A compression spring (482) is installed between the slide rod (483) and the reduction housing (481). A friction plate (484) is installed at one end of the slide rod (483), and the friction plate (484) is slidably connected to the damping slide (33).

9. A welding device for fixing shear reinforcement with automatic positioning function according to claim 6, characterized in that: The slag scraper pressure sensor (62) includes a compression shell (621), which is mounted on a welding control support base (3). Several sliding shells (622) are installed on one side of the compression shell (621). A squeezing chamber (627) is provided inside the compression shell (621). A sliding chamber (626) is provided inside the sliding shell (622). The squeezing chamber (627) is connected to the sliding chamber (626). A detection rod (623) is slidably installed inside the sliding chamber (626). A scraper plate (624) is installed at one end of the detection rod (623). A converter (625) is provided at the top of the squeezing chamber (627). Both the sliding chamber (626) and the squeezing chamber (627) are filled with hydraulic oil.

10. A welding device for fixing shear reinforcement with automatic positioning function according to claim 9, characterized in that: The converter (625) includes a piston (6251) and a pad (6253). The piston (6251) is slidably mounted in the extrusion chamber (627). The pad (6253) is slidably connected to the extrusion chamber (627). A piezoelectric element (6254) is installed between the pad (6253) and the extrusion chamber (627). A force transmission spring (6252) is installed between the pad (6253) and the piston (6251).

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