Adjustable welding positioning device for steel plate bolt embedded part

Abstract

The invention discloses an adjustable welding and positioning device for a steel plate bolt embedded part, and particularly relates to the technical field of welding of the steel plate bolt embedded part. A clamping and conveying assembly and an alignment unit are arranged, a transfer cylinder and a conveying cylinder are vertically and collinearly arranged, the bolt embedded part is subjected to alignment type discharging under gravity, and a positioning cylinder moves in a segmented mode; the bolt embedded part falls to the upper surface of the steel plate through first downward movement, four second electric push rods synchronously drive a positioning plate to be attached to the outer surface of the positioning plate, and preliminary clamping and fixing are completed; the bolt embedded part moves to the position over the through hole of the steel plate, the positioning barrel moves downwards again, the bottom of the bolt embedded part is inserted into the through hole, an initial insertion state is formed, the second electric push rod located on one side of the deviation direction works independently, the positioning plate on the corresponding side is pushed to push the bolt embedded part to reversely slide in the axial direction, and the bolt embedded part is inserted into the through hole. The bolt embedded part is dynamically and finely adjusted, centered and positioned in the through hole, the insertion precision is improved, the through hole interference risk is reduced, manual intervention and positioning errors are reduced, and the overall assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology for steel plate bolt embedded parts, specifically to an adjustable welding positioning device for steel plate bolt embedded parts. Background Technology

[0002] In modern building structure and equipment installation engineering, embedded parts, as important intermediate components connecting steel structures, equipment and concrete foundations, are widely used in industrial plants, bridges, power equipment foundations and curtain wall systems. Embedded parts are usually composed of steel plates, anchor bars and bolts. The positioning accuracy between the bolts and the steel plates has a significant impact on the accuracy of subsequent equipment installation and the structural load-bearing capacity. In actual construction, embedded parts often need to be fixed and welded to steel formwork or foundation steel structure in advance to ensure the accuracy of their position and installation strength.

[0003] A search revealed that utility model patent CN218745898U discloses an adjustable welding positioning device for steel plate bolt embedded parts. The steel plate positioning table positions the steel plate and fixes the bolts through a bolt fixing component set below the table surface. The bolt fixing component can adjust the length of the bolt extension to meet the welding requirements of different bolt extension lengths.

[0004] In the assembly of steel plates and bolt embedded parts, the bolts must be accurately inserted into the through holes on the steel plates, and their axes must be highly aligned with the through holes. This mainly relies on manual visual inspection or mechanical clamps for positioning. During the insertion process, the bolt embedded parts often do not match the through holes, requiring repeated manual adjustments to the direction or multiple trial insertions. This not only reduces installation efficiency but also increases the labor intensity of operators and the risk of accidental injury. Furthermore, the insertion depth and direction are uncontrollable, affecting the subsequent welding quality and assembly accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable welding positioning device for steel plate bolt embedded parts to solve the problems mentioned in the background art.

[0006] The main technical problem solved by this invention is: The positioning mainly relies on manual visual inspection or mechanical clamps. During the insertion process, the bolt pre-embedded parts often do not match the through holes, requiring repeated manual adjustment of the direction or multiple trial insertions. The insertion depth and direction are uncontrollable, affecting the subsequent welding quality.

[0007] This invention can be achieved through the following technical solutions: An adjustable welding positioning device for steel plate bolt embedded parts includes a processing chamber located in the middle of a base. The conveyor cylinder is located on the top surface of the processing chamber and extends into the interior; The feeding and infeeding components are located on both sides of the processing chamber and do not operate simultaneously; The bottom of the inner cavity of the processing chamber is equipped with a positioning platform, and the edge surface of the positioning platform is equipped with a limiting unit for positioning the steel plate; The clamping assembly is slidably mounted on the top of the inner cavity of the processing chamber and moves the bolt pre-embedded parts to the through hole of the steel plate. It includes two sets of adjusting seats. The adjusting seat includes two transfer cylinders that are close to or far from each other and are vertically collinear with the conveying cylinder. Each transfer cylinder has a positioning cylinder at its bottom that is raised and lowered. The positioning cylinder has an alignment unit inside that aligns the bolt pre-embedded parts with the center of the through hole in the steel plate. The bottom of the positioning cylinder is equipped with a laser displacement sensor for identifying the alignment status. The alignment unit includes four movable cavities recessed inward on the inner wall of the positioning cylinder. Each movable cavity is equipped with a damping guide rail on its inner wall. Each damping guide rail is slidably mounted with an electric push rod II. The pushing end of each electric push rod II is connected to a positioning plate that contacts the surface of the bolt embedded part. The processing chamber is equipped with conveyor belts on both the front and rear sides, and the conveyor belts are located adjacent to the positioning table. Between the two sets of adjusting seats is a sliding material pushing unit that pushes material in different directions. The sliding direction of the material pushing unit is towards the conveyor belts on both sides.

[0008] A further technical improvement of the present invention is that the initial position of the transfer cylinder is vertically aligned with that of the conveying cylinder; An electric push rod is installed on the extension plate on the bottom outer surface of the transfer cylinder. The pushing end of the electric push rod is fixed to the top of the positioning cylinder. A corrugated pipe is provided between the positioning cylinder and the electric push rod.

[0009] A further technical improvement of the present invention is that: the bottom end of the positioning cylinder is connected to an annular through seat, the laser displacement sensor is installed on the bottom surface of the annular through seat, and the bottom surface of the laser displacement sensor is provided with a laser welding unit for annular welding.

[0010] A further technical improvement of the present invention is that: the inner wall of the processing chamber is provided with a blocking plate that is flush with the width of the feeding assembly, and the inner wall of the blocking plate is provided with a vertical groove; The surface of the processing chamber is provided with a discharge channel that is blocked by a blocking plate, and a linear guide rail is embedded in the inner wall of the processing chamber above the discharge channel. The slider on the linear guide rail is fixed to the blocking plate.

[0011] A further technical improvement of the present invention is that: the feeding unit includes a screw two driven by a positive and negative motor, a fixed slide rod is provided below the screw two, an adjusting sleeve that slides with the fixed slide rod is threaded on the outside of the screw two, a pusher that moves in the vertical direction is slidably provided inside the adjusting sleeve, and a synchronous cylinder for pushing the pusher is installed on the upper surface of the adjusting sleeve. The bottom of the pusher extends into the interior of the vertical groove, and a notch is provided in the middle of the top surface of the pusher.

[0012] A further technical improvement of the present invention is that: the limiting unit includes a top plate fixedly installed at the entrances on both sides of the processing chamber, and the surface of the positioning table is provided with a limiting groove directly below the top plate. A bonding plate is movably installed in the limiting groove. One side of the top of the bonding plate is inclined, and the bottom surface of the bonding plate is connected to an elastic element connected to the limiting groove.

[0013] A further technical improvement of the present invention is that the feeding assembly includes two strips that are flush with the same height as the positioning table. The two strips are respectively located on both sides of the base cavity. A feeding unit is provided in the middle of the base cavity and on the side away from the top plate.

[0014] A further technical improvement of the present invention is that: the feeding unit includes a limiting slide rail provided on the bottom surface of the base cavity, a screw rod driven by two positive and negative motors is installed in the limiting slide rail, a sliding sleeve that slides along the limiting slide rail is threaded on the outside of the screw rod, a lifting plate is movably installed inside the sliding sleeve, and the bottom of the lifting plate is provided with a slope that is consistent with the inclination angle of the bonding plate. The limiting slide is equipped with a pusher platform that works in conjunction with the lifting plate; The top inner side of the lifting plate is equipped with a push plate that is pushed by a horizontal cylinder.

[0015] A further technical improvement of the present invention is that: a protrusion that is limited to move within the movable groove of the sliding sleeve is installed on the outer surface of the lifting plate, and a rectangular spring is sleeved on the outside of the lifting plate and at the upper end of the protrusion, and the other end of the rectangular spring is fixed to the movable groove of the sliding sleeve. The bottom of the lifting plate is provided with a notch for the screw to pass through horizontally.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up clamping components and alignment units, the transfer cylinder and conveying cylinder are arranged vertically and collinearly to ensure that the bolt pre-embedded parts are aligned and unloaded under gravity. The positioning cylinder has segmented displacement. The initial downward movement causes the bolt pre-embedded parts to fall onto the upper surface of the steel plate, and four electric push rods synchronously drive the positioning plate to fit against its outer surface, completing the initial clamping and fixing. Subsequently, by controlling the two transfer cylinders to move closer to each other in the adjusting seat, the bolt pre-embedded parts are moved to directly above the through hole in the steel plate. The positioning cylinder moves downward again, inserting the bottom of the bolt pre-embedded parts into the through hole, forming... In the initial insertion state, the system uses a laser displacement sensor to detect the positional deviation between the bottom of the bolt pre-embedded part and the center of the through hole in the steel plate. The electric push rod two on one side of the offset direction works independently, pushing the positioning plate on the corresponding side to push the bolt pre-embedded part to slide in the opposite direction along the axial direction. At this time, the other two electric push rods two in symmetrical positions slide on the damping guide rail to make way and avoid obstacles, realizing the dynamic fine-tuning centering and positioning of the bolt pre-embedded part in the through hole, improving the insertion accuracy and reducing the risk of through hole interference, reducing manual intervention and positioning errors, and improving the overall assembly efficiency. 2. When pushing steel plates with different hole spacings, the bottom of the pusher always extends into the vertical groove inside the block plate. As the screw rotates, the adjusting sleeve slides in the horizontal direction along the fixed slide rod, thereby driving the pusher on the adjusting sleeve to move in two discharge directions, so as to realize the discharge of steel plates with different hole spacings in two directions. 3. As the lifting plate slides within the limiting slide along the sliding sleeve, its bottom pushes against the pushing table, causing the lifting plate to rise vertically. The height of the lifting plate is higher than that of the strip. Maintaining this height, the plate slides horizontally, and the pusher plate contacts the pushing surface of the steel plate, continuing to push the steel plate forward so that it accurately enters the limiting unit area and forms a precise contact and positioning with the bonding plate. This achieves synchronous action of feeding and position fine-tuning. By utilizing the combined action of the lifting plate rising and then sliding horizontally, the steel plate is already in a high-precision control state before entering the limiting unit, avoiding the problems of pushing direction deviation or lateral impact on the bonding plate in traditional feeding methods. This ensures that the steel plate has a controllable contact angle and pushing force when it is in contact with the bonding plate, effectively improving the accuracy and stability of the initial positioning of the steel plate. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the bonding plate and the top plate of the present invention; Figure 3 For the present invention Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the lifting plate and the pushing platform of the present invention; Figure 5 This is a schematic diagram of the internal structure of the processing chamber of the present invention; Figure 6 This is a three-dimensional structural diagram of the pusher and the blocking plate of the present invention; Figure 7 This is a top view schematic diagram of the installation structure of the positioning plate and positioning cylinder of the present invention.

[0019] In the diagram: 1. Processing chamber; 2. Belt; 3. Top plate; 4. Conveyor belt; 5. Blocking plate; 6. Conveyor cylinder; 7. Positioning table; 8. Lifting plate; 9. Adhesive plate; 10. Elastic element; 11. Push plate; 12. Sliding sleeve; 13. Boss; 15. Pushing table; 16. Screw one; 17. Notch one; 18. Adjusting seat; 19. Transfer cylinder; 20. Screw two; 22. Electric push rod one; 23. Positioning cylinder; 24. Bellows; 25. Adjusting sleeve; 26. Linear guide rail; 27. Vertical groove; 28. Push frame; 29. ​​Notch two; 30. Annular through seat; 31. Laser displacement sensor; 32. Positioning plate; 33. Movable cavity; 34. Damping guide rail; 35. Electric push rod two. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0021] Please see Figures 1-7 As shown, the present invention provides an adjustable welding positioning device for steel plate bolt embedded parts, including a processing chamber 1 located in the middle of the base, and feeding components on both sides of the processing chamber 1, wherein the two feeding components do not work at the same time. The bottom of the inner cavity of the processing chamber 1 is provided with a positioning platform 7, and the edge surface of the positioning platform 7 is provided with a limiting unit for positioning the steel plate; A conveying cylinder 6 is provided through the top surface of the processing chamber 1, and a clamping assembly for moving the bolt pre-embedded parts to the through hole of the steel plate is slidably provided on the top of the inner cavity of the processing chamber 1. The clamping assembly includes two sets of adjusting seats 18. The adjusting seat 18 includes two transfer cylinders 19 that are close to or far from each other and are vertically collinear with the conveying cylinder 6. Each transfer cylinder 19 has a positioning cylinder 23 that is raised and lowered at its bottom. The positioning cylinder 23 has an alignment unit inside that aligns the bolt pre-embedded part with the center of the through hole in the steel plate. The bottom of the positioning cylinder 23 is equipped with a laser displacement sensor 31 for identifying the alignment status. The alignment unit includes four movable cavities 33 recessed inward on the inner wall of the positioning cylinder 23. Each movable cavity 33 has a damping guide rail 34 installed on its inner wall. Each damping guide rail 34 has an electric push rod 35 slidably installed on it. The pushing end on each side is connected to a positioning plate 32 that contacts the surface of the bolt embedded part. Conveyor belts 4 are provided on both the front and rear sides of the processing chamber 1, and the conveyor belts 4 are arranged adjacent to the positioning table 7; Between the two sets of adjusting seats 18, there is a sliding material pushing unit that can push material in different directions. The sliding direction of the material pushing unit is towards the conveyor belts 4 on both sides. When installing bolt embedded parts on steel plates, steel plates with different hole spacings are fed into the plates from both sides. The two sets of feeding components do not work at the same time, which effectively avoids bidirectional interference and improves feeding versatility and feeding efficiency. The steel plate is fed into the processing chamber 1 by a set of feeding components, and the two sides of the conveyed steel plate are positioned by the limiting unit. Initially, the transfer cylinder 19 and the conveying cylinder 6 are vertically collinear, which facilitates the alignment and feeding of the bolt pre-embedded parts. The positioning cylinder 23 moves in segments, and the positioning cylinder 23 is in the first downward movement. The bolt pre-embedded part enters the transfer cylinder 19 through the conveying cylinder 6 and falls onto the upper surface of the steel plate through the positioning cylinder 23. Then, the four electric push rods 35 simultaneously push the positioning plate 32 to contact the outer surface of the bolt pre-embedded part, thereby fixing the bolt pre-embedded part. As the two intermediate cylinders 19 in the adjusting seat 18 approach each other, the bolt embedded parts reach the pre-set through hole in the steel plate; The positioning cylinder 23 moves downwards for the second time, causing the bottom of the bolt pre-embedded part to enter the through hole, forming the initial insertion state; The laser displacement sensor 31 identifies the positional deviation between the bolt embedded part and the center of the through hole in the steel plate, and sets a feedback closed-loop control logic. When the laser identifies that the deviation value exceeds the limit, welding is automatically paused or an alarm is triggered. As the positioning cylinder 23 slides with the transfer cylinder 19, its displacement only occurs on both sides of the center of the through hole. When it shifts to one side, the corresponding electric push rod 35 works, while the bolt pre-embedded part is held by the positioning plate 32 pushed by the other two symmetrical electric push rods 35. The electric push rod 35 shifted to one side inside the positioning cylinder 23 pushes the corresponding positioning plate 32, pushing the bolt pre-embedded part to slide in the reverse direction in the through hole of the steel plate to achieve axial centering. At this time, the other two symmetrical electric push rods 35 slide on the corresponding damping guide rail 34, adaptively making way and reducing the initial insertion deviation. When shifting to the other side, it moves in the opposite direction to the previous position; After alignment, the bolt embedded parts remain vertical and stationary, ready for subsequent annular laser welding operations; After welding is completed, the positioning cylinder 23 rises, so that the positioning cylinder 23 moves away from the top of the bolt embedded part, making it easier for the material to be discharged.

[0022] See Figure 5 As shown, the initial position of the transfer cylinder 19 is vertically aligned with the conveying cylinder 6; An electric push rod 22 is installed on the extension plate on the bottom outer surface of the transfer cylinder 19. The pushing end of the electric push rod 22 is fixed to the top of the positioning cylinder 23. A bellows 24 is provided between the positioning cylinder 23 and the electric push rod 22. The positioning cylinder 23 is driven by the electric push rod 22 to move multiple times. Due to the design of the bellows 24, it extends and retracts synchronously with the lifting action, ensuring the connection between the positioning cylinder 23 and the transfer cylinder 19.

[0023] See Figure 5 As shown, the bottom end of the positioning cylinder 23 is connected to an annular through seat 30, the laser displacement sensor 31 is installed on the bottom surface of the annular through seat 30, and the bottom surface of the laser displacement sensor 31 is provided with a laser welding unit for annular welding. The laser welding unit scans along a circumferential trajectory and can directly perform ring welding operations after completing alignment recognition, thus achieving closed-loop welding of the connection area between the bolt and the steel plate.

[0024] The inner wall of the processing chamber 1 is provided with a blocking plate 5 that is flush with the width of the feeding assembly, and the inner wall of the blocking plate 5 is provided with a vertical groove 27. The surface of the processing chamber 1 is provided with a discharge channel blocked by a blocking plate 5, and the inner wall of the processing chamber 1 is embedded above the discharge channel with a linear guide rail 26. The slider on the linear guide rail 26 is fixed to the blocking plate 5. Initially, the blocking plate 5 closes the discharge channel, and the steel plate enters the processing chamber 1 along the feeding assembly. The front and rear surfaces of the steel plate contact the blocking plate 5, effectively preventing the steel plate or bolts from accidentally slipping into the discharge channel during processing. After processing is completed, the corresponding blocking plate 5 on the corresponding side rises and opens, allowing steel plates with different through hole spacings to leave through the discharge channel.

[0025] See Figure 5 and Figure 6 As shown, the feeding unit includes a screw 20 driven by a forward and reverse motor. A fixed slide rod is provided below the screw 20. An adjusting sleeve 25 that slides with the fixed slide rod is threaded onto the outside of the screw 20. A pusher 28 that moves in the vertical direction is slidably provided inside the adjusting sleeve 25. A synchronous cylinder for pushing the pusher 28 is installed on the upper surface of the adjusting sleeve 25. The bottom of the pusher 28 extends into the interior of the vertical groove 27, and a notch 29 is provided in the middle of the top surface of the pusher 28; Initially, the bottom of the pusher 28 is pushed by the synchronous cylinder into the vertical groove 27 inside the block plate 5, so that it is hidden in the block plate 5. The block plate 5 on the side away from the pusher 28 is opened. When the steel plates with the same hole spacing are processed, the positive and negative motor drives the screw 20 to rotate, which drives the adjusting sleeve 25 with its external thread to slide in the horizontal direction along the fixed slide rod, thereby driving the pusher 28 on the adjusting sleeve 25 to move in the discharge direction for the subsequent discharge action. When pushing a steel plate with a different hole spacing, the pusher 28 slides along a straight line and embeds itself into the vertical groove 27 of the blocking plate 5 on the far side, so as to realize the hidden positioning of the pusher 28 in the discharge channel in another direction, and switch between the two discharge directions to realize the discharge of steel plates with different hole spacing in two directions.

[0026] See Figure 2 As shown, the limiting unit includes a top plate 3 fixedly installed at the entrances on both sides of the processing chamber 1. The surface of the positioning table 7 is provided with a limiting groove directly below the top plate 3. A bonding plate 9 is movably installed in the limiting groove. One side of the top of the bonding plate 9 is inclined, and the bottom surface of the bonding plate 9 is connected to an elastic element 10 connected to the limiting groove. When the steel plate enters through the bonding plate 9 at the entrance, the bonding plate 9 on the other side is exposed on the upper surface of the positioning table 7. When passing through the inclined surface of the bonding plate 9, due to the restriction of the top plate 3, the bonding plate 9 compresses the elastic element 10 downward in the limiting groove to achieve elastic avoidance, so that the steel plate can pass smoothly through the contact guide area of ​​the bonding plate 9, avoiding scratching or jamming, until the forward end of the steel plate reaches another top plate 3 and contacts another bonding plate 9. After the steel plate has completely passed through the bonding plate 9, the elastic element 10 releases the restoring force, causing the bonding plate 9 to float up to the initial position and position the other side of the steel plate, forming a stable lateral limiting reference without manual intervention.

[0027] See Figure 2 , Figure 3 and Figure 4 As shown, the feeding assembly includes two strips 2 that are flush with the same height as the positioning table 7. The two strips 2 are respectively located on both sides of the base cavity and have the same width as the steel plate. A feeding unit is provided in the middle of the base cavity and on the side away from the top plate 3. The feeding unit includes a limiting slide rail located on the bottom surface of the base cavity. A screw 16 driven by a positive and negative motor is installed inside the limiting slide rail. A sliding sleeve 12 that slides along the limiting slide rail is threaded onto the outside of the screw 16. A lifting plate 8 is movably installed inside the sliding sleeve 12. The bottom of the lifting plate 8 is provided with a slope that is at the same angle as the bonding plate 9. The limiting slide is equipped with a pusher 15 that works in conjunction with the lifting plate 8. The pusher 15 is located below the screw 16. The top inner side of the lifting plate 8 is provided with a push plate 11 that is pushed by a horizontal cylinder; The outer surface of the lifting plate 8 is fitted with a protrusion 13 that is limited to move within the movable groove of the sliding sleeve 12, and a rectangular spring is fitted on the outside of the lifting plate 8 and at the upper end of the protrusion 13, with the other end of the rectangular spring fixed to the movable groove of the sliding sleeve 12. The bottom of the lifting plate 8 is provided with a notch 17 for the screw 16 to pass through horizontally; Steel plates with the same hole spacing are conveyed to the corresponding bonding plate 9 by two strips 2 on the same side; The screw 16 is driven by the two positive and negative motors to rotate, causing the sliding sleeve 12 to slide horizontally along the limiting slide. During this process, the bottom of the lifting plate 8 pushes against the pushing table 15, causing the lifting plate 8 to have an upward tendency in the vertical direction. The boss 13 compresses the rectangular spring in the movable groove of the sliding sleeve 12, and the rising height of the lifting plate 8 is higher than the height of the strip 2. Maintaining the raised height and sliding horizontally, the pusher plate 11 contacts the pushing surface of the steel plate and continues to push the steel plate forward. The horizontally sliding pusher plate 11 then accurately guides the steel plate into the limiting unit area, forming a precise abutment and positioning with the bonding plate 9. This achieves synchronous action of feeding and position fine adjustment. By using the combined action of the lifting plate 8 being raised and then sliding horizontally, the steel plate is already in a high-precision control state before entering the limiting unit. This avoids the problems of pushing direction deviation or lateral impact on the bonding plate 9 that exist in traditional feeding methods. It ensures that the steel plate has a controllable abutment angle and pushing force when abutting the bonding plate 9, effectively improving the accuracy and stability of the initial positioning of the steel plate.

[0028] In use, this invention, by setting up a clamping assembly and an alignment unit, with the transfer cylinder 19 and the conveying cylinder 6 arranged vertically and collinearly, ensures that the bolt pre-embedded parts are aligned and unloaded under gravity. The positioning cylinder 23 has segmented displacement. The first downward movement causes the bolt pre-embedded parts to fall onto the upper surface of the steel plate, and the positioning plate 32 is synchronously driven by four electric push rods 35 to fit against its outer surface, completing the initial clamping and fixing. Subsequently, by controlling the two transfer cylinders 19 to move closer to each other in the adjusting seat 18, the bolt pre-embedded parts are moved to the top of the through hole in the steel plate. The positioning cylinder 23 moves downward again, inserting the bottom of the bolt pre-embedded parts into the through hole, forming the initial insertion state. The system detects the positional deviation between the bottom of the bolt pre-embedded parts and the center of the through hole in the steel plate through the laser displacement sensor 31. If the identification result exceeds the set error threshold, the welding is automatically paused or an alarm signal is issued, and the feedback closed-loop control logic is activated. If a centering deviation occurs, the electric push rod 35 on the side of the offset direction will work alone to push the positioning plate 32 on the corresponding side to push the bolt pre-embedded part to slide in the opposite direction along the axial direction. At this time, the other two electric push rods 35 in symmetrical positions will slide on the damping guide rail 34 to make way for obstacles, realize the dynamic fine adjustment centering and positioning of the bolt pre-embedded part in the through hole, improve the insertion accuracy and reduce the risk of through hole interference, reduce manual intervention and positioning error, and improve the overall assembly efficiency. When pushing steel plates with different hole spacings, the bottom of the pusher 28 always extends into the vertical groove 27 inside the blocking plate 5. As the screw 20 rotates, the adjusting sleeve 25 slides in the horizontal direction along the fixed slide rod, thereby driving the pusher 28 on the adjusting sleeve 25 to move in both discharge directions, so as to realize the discharge of steel plates with different hole spacings in both directions. As the lifting plate 8 slides within the limiting slide along the sliding sleeve 12, its bottom pushes against the pushing table 15, causing the lifting plate 8 to rise vertically. The height of the lifting plate 8 is higher than that of the strip 2. Maintaining the raised height, the lifting plate slides horizontally. The push plate 11 contacts the pushing surface of the steel plate and continues to push the steel plate forward, allowing it to accurately enter the limiting unit area and form a precise abutment with the bonding plate 9. This achieves synchronous action of feeding and position fine adjustment. By utilizing the combined action of the lifting plate 8 rising and then sliding horizontally, the steel plate is already in a high-precision control state before entering the limiting unit. This avoids the problems of pushing direction deviation or lateral impact on the bonding plate 9 that exist in traditional feeding methods. It ensures that the steel plate has a controllable abutment angle and pushing force when it abuts the bonding plate 9, effectively improving the accuracy and stability of the initial positioning of the steel plate.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An adjustable welding positioning device for steel plate bolt embedded parts, comprising a processing chamber (1) located in the middle of a base, characterized in that: The conveyor cylinder (6) is located on the top surface of the processing chamber (1) and extends into the interior; The feeding assembly is located on both sides of the processing chamber (1) and does not work at the same time; The bottom of the inner cavity of the processing chamber (1) is provided with a positioning table (7), and the edge surface of the positioning table (7) is provided with a limiting unit for positioning the steel plate; The clamping assembly is slidably disposed on the top of the inner cavity of the processing chamber (1) and moves the bolt pre-embedded parts to the through hole of the steel plate, which includes two sets of adjusting seats (18). The adjusting seat (18) includes two transfer cylinders (19) that are close to or far from each other and are vertically collinear with the conveying cylinder (6). Each transfer cylinder (19) has a positioning cylinder (23) at its bottom. The positioning cylinder (23) has an alignment unit inside that aligns the bolt pre-embedded parts with the center of the through hole in the steel plate. The bottom of the positioning cylinder (23) is equipped with a laser displacement sensor (31) for identifying the alignment status. The alignment unit includes four movable cavities (33) recessed inward on the inner wall of the positioning cylinder (23). Each movable cavity (33) has a damping guide rail (34) installed on its inner wall. Each damping guide rail (34) has an electric push rod (35) slidably installed on it. The pushing end of each electric push rod (35) is connected to a positioning plate (32) that contacts the surface of the bolt pre-embedded part. The processing chamber (1) is equipped with conveyor belts (4) on both the front and rear sides, and the conveyor belts (4) are arranged adjacent to the positioning table (7); Between the two sets of adjusting seats (18) is a sliding material pushing unit that pushes material in different directions. The sliding direction of the material pushing unit is towards the conveyor belts (4) on both sides.

2. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The initial position of the transfer cylinder (19) is vertically aligned with the conveying cylinder (6); An electric push rod (22) is installed on the extension plate on the bottom outer surface of the transfer cylinder (19). The pushing end of the electric push rod (22) is fixed to the top of the positioning cylinder (23). A bellows (24) is provided between the positioning cylinder (23) and the electric push rod (22).

3. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The bottom end of the positioning cylinder (23) is connected to an annular through seat (30), the laser displacement sensor (31) is installed on the bottom surface of the annular through seat (30), and the bottom surface of the laser displacement sensor (31) is provided with a laser welding unit for annular welding.

4. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The inner wall of the processing chamber (1) is provided with a blocking plate (5) that is flush with the width of the feeding assembly, and the inner wall of the blocking plate (5) is provided with a vertical groove (27). The surface of the processing chamber (1) is provided with a discharge channel blocked by a blocking plate (5), and a linear guide rail (26) is embedded on the inner wall of the processing chamber (1) above the discharge channel. The slider on the linear guide rail (26) is fixed to the blocking plate (5).

5. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The feeding unit includes a screw two (20) driven by a forward and reverse motor. A fixed slide rod is provided below the screw two (20). An adjusting sleeve (25) that slides with the fixed slide rod is threaded on the outside of the screw two (20). A pusher (28) that moves in the vertical direction is slidably provided inside the adjusting sleeve (25). A synchronous cylinder for pushing the pusher (28) is installed on the upper surface of the adjusting sleeve (25). The bottom of the pusher (28) extends into the interior of the vertical groove (27), and the top surface of the pusher (28) is provided with a notch two (29).

6. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The limiting unit includes a top plate (3) fixedly installed at the entrances on both sides of the processing chamber (1). The surface of the positioning table (7) is provided with a limiting groove directly below the top plate (3). A bonding plate (9) is movably installed in the limiting groove. One side of the top of the bonding plate (9) is inclined, and the bottom surface of the bonding plate (9) is connected to an elastic element (10) connected to the limiting groove.

7. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 1, characterized in that, The feeding assembly includes two strips (2) that are flush with the positioning table (7). The two strips (2) are respectively located on both sides of the base cavity. A feeding unit is provided in the middle of the base cavity and on the side away from the top plate (3).

8. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 7, characterized in that, The feeding unit includes a limiting slide rail located on the bottom surface of the base cavity. A screw rod (16) driven by a positive and negative motor is installed in the limiting slide rail. The screw rod (16) is threaded with a sliding sleeve (12) that slides along the limiting slide rail. A lifting plate (8) is movably installed inside the sliding sleeve (12). The bottom of the lifting plate (8) is provided with a slope that is at the same angle as the bonding plate (9). The limiting slide is equipped with a pusher (15) that works in conjunction with the lifting plate (8); The top inner side of the lifting plate (8) is provided with a push plate (11) pushed by a horizontal cylinder.

9. The adjustable welding positioning device for steel plate bolt embedded parts according to claim 8, characterized in that, The outer surface of the lifting plate (8) is fitted with a boss (13) that is limited to move in the movable groove of the sliding sleeve (12), and a rectangular spring is fitted on the outside of the lifting plate (8) and at the upper end of the boss (13), and the other end of the rectangular spring is fixed to the movable groove of the sliding sleeve (12). The bottom of the lifting plate (8) is provided with a notch (17) for the screw (16) to pass through horizontally.

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