A pre-embedded sleeve steel bar welding device

Abstract

This invention relates to the field of welding equipment technology, specifically to a welding equipment for pre-embedded sleeve steel bars, including a workbench and further comprising: a counter-welding section including two welding components horizontally movable along the X-axis of the workbench, and a positioning clamping component installed between the two welding components and horizontally movable along the Y-axis; the positioning clamping component includes a connecting base plate with a U-shaped side plate vertically mounted at one end, a clamping block corresponding to the position of the connecting base plate mounted on the U-shaped side plate, and a positioning support mounted vertically above the connecting base plate; rollers are rotatably mounted above the connecting base plate and on both sides of the bottom of the pre-embedded sleeve body; this invention creatively utilizes the descent of the positioning support to drive a gear and rack transmission, which can drive the rollers to rotate in the same direction to achieve automatic 90° rotation of the pre-embedded sleeve body, eliminating the need for manual rotation and hand welding, which helps to reduce labor intensity, improve work efficiency, and avoid defects such as incomplete welding and rework caused by manual operation.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and specifically to a welding equipment for pre-embedded sleeve steel bars. Background Technology

[0002] In prefabricated building projects, the embedded sleeve is a core embedded component. Four long steel bars need to be welded evenly to its outer wall and embedded in the concrete to enhance the anchoring force and ensure structural stability. This welding operation requires the four steel bars to be evenly distributed at equal angles, and one end to be horizontally aligned with one end of the sleeve. Otherwise, the anchoring effect and structural safety will be affected.

[0003] Currently, the industry generally uses manual assistance throughout the entire process: operators need to fix the sleeve and manually position the steel bars to be welded on both sides. During the welding process, the operator needs to hold the sleeve for a period of time to ensure the continuity of the welding. After welding two steel bars, the operator needs to manually rotate the sleeve 90 degrees and repeat the welding of another pair of steel bars. This mode has obvious defects: First, the accuracy of the steel bar placement is poor, relying on manual visual inspection and experience, which is prone to the hidden dangers of steel bar distribution deviation and uneven ends; Second, it is inefficient, as rotating and repeatedly positioning is time-consuming, and the manual method is prone to problems such as incomplete welding requiring rework and safety hazards.

[0004] In summary, existing traditional welding equipment cannot meet the specific requirements of welding four long steel bars around the perimeter of the pre-embedded sleeve. Considering the need to improve the automation level of the equipment, reduce manual labor, and avoid the problem of hand-held positioning during the welding process, we propose to design a special welding equipment with efficient positioning and assisted flipping. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings mentioned in the background art and provide a pre-embedded sleeve steel bar welding device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A welding device for pre-embedded sleeve steel bars, including a workbench, and further comprising: The opposing welding section includes two welding components that are horizontally movable along the X-axis of the worktable, and a positioning and clamping component that is installed between the two welding components and horizontally movable along the Y-axis. The positioning and clamping assembly includes a connecting base plate with a U-shaped side plate vertically installed at one end, a clamping block corresponding to the position of the connecting base plate installed on the U-shaped side plate, and a positioning support mounted on the connecting base plate. The positioning support and the clamping block are used to clamp and fix the pre-embedded sleeve cylinder and the reinforcing bar to be welded. A support roller is rotatably installed above the connecting base plate and on both sides of the bottom of the pre-embedded sleeve body. During the descent of the positioning support, the support roller rotates in the same direction and drives the pre-embedded sleeve body to rotate 90° to change the welding position.

[0007] Preferably, the positioning support includes a bottom support block with baffles and an open support plate fixedly connected to both ends, and the open support plate and the bottom support block are provided with a cylinder placement groove for horizontally supporting the pre-embedded sleeve body; An inclined support plate is installed between the baffle and the open support plate, and at the corresponding position at the center of both ends of the pre-embedded sleeve body; The open support plate is provided with a bar placement groove corresponding to the inclined support plate and used to support the reinforcing bars to be welded.

[0008] Preferably, the idler roller is rotatably mounted on the connecting base plate via a vertically mounted bracket, and a transmission gear is coaxially mounted on at least one end of the idler roller, and the idler roller is located between the inclined support plate and the bottom support block; The baffle is provided with a groove for vertically mounting the rack plate, and the rollers on both sides mesh with the corresponding rack plates through the transmission gear and rotate in the same direction.

[0009] Preferably, the connecting base plate is mounted on the movable frame, and a top support cylinder is fixedly mounted on the bottom of the movable frame by a fixed frame, and a vertical rod is fixedly mounted on the output shaft of the top support cylinder; The vertical rod is inserted through the connecting base plate and the movable frame, and is fixedly connected to the bottom of the positioning bracket.

[0010] Preferably, a positioning groove is provided at the bottom of the placement groove, and the positioning groove is used to centrally support the reinforcing bar after welding and rotation by 90°.

[0011] Preferably, the idler roller body located at the rear end of the conveying direction is provided with a groove, which is used to prevent the welded steel bar from rotating and getting stuck during the flipping process of the pre-embedded sleeve body.

[0012] Preferably, the welding assembly includes a vertical frame with at least two sliding rods installed vertically, a lifting cylinder is fixedly installed on the vertical frame, a lifting block is installed at the output shaft of the lifting cylinder, the lifting block is connected to a mounting plate through a connecting rod, and the mounting plate is slidably installed on the sliding rods; The welding torch is detachably mounted on the mounting plate via a clamp.

[0013] Preferably, the worktable is horizontally mounted with a guide rail along the X-axis, and a slider is slidably mounted on the guide rail. The slider is detachably mounted at the bottom of the vertical frame. The workbench is equipped with a telescopic cylinder for driving the vertical frame to move.

[0014] Preferably, a sliding assembly is horizontally mounted on the worktable, the sliding assembly including a lead screw and a guide rod mounted along the Y-axis; The lead screw and the guide rod are equipped with a first positioning block and a second positioning block at both ends, and a drive motor with an output shaft coaxially connected to the lead screw is installed on the second positioning block.

[0015] Preferably, a sliding block is threaded onto the lead screw, and the sliding block is slidably mounted on the guide rod; The sliding block is equipped with a mounting platform, and the movable frame is detachably mounted on the mounting platform.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This pre-embedded sleeve rebar welding equipment can accurately clamp and position the pre-embedded sleeve cylinder and rebar through the positioning support and clamping block, and achieve forced alignment of the rebar ends with the baffle, effectively solving the problem of uneven rebar distribution and uneven ends caused by manual visual positioning, and significantly improving the welding positioning accuracy. 2. This invention creatively utilizes the descent of the positioning support to drive the gear and rack transmission, which can drive the roller to rotate in the same direction to achieve automatic 90° rotation of the pre-embedded sleeve body. This eliminates the need for manual rotation and hand welding, which helps to reduce labor intensity, improve work efficiency, and avoid defects such as incomplete welding and rework caused by manual operation. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the welding assembly of the present invention; Figure 3 This is a schematic diagram of the sliding component of the present invention; Figure 4 This is a schematic diagram of the installation relationship of the positioning and clamping components of the present invention; Figure 5 This is a front view of the installation relationship of the positioning and clamping components of the present invention; Figure 6 This is a schematic diagram of the positioning and clamping component of the present invention; Figure 7 This is an exploded view of the positioning and clamping component of the present invention; Figure 8 This is a schematic diagram of the positioning support of the present invention; Figure 9 This is a cross-sectional view showing the installation relationship of the positioning and clamping components of the present invention.

[0018] The meanings of the various markings in the diagram are as follows: 1. Workbench; 2. Welding assembly; 21. Vertical frame; 22. Lifting cylinder; 23. Slide rod; 24. Lifting block; 25. Connecting rod; 26. Mounting plate; 27. Clamping seat; 28. Welding torch; 3. Sliding assembly; 31. First positioning block; 32. Second positioning block; 33. Drive motor; 34. Lead screw; 35. Guide rod; 36. Sliding block; 37. Mounting platform; 4. Positioning and clamping assembly; 41. Connecting base plate; 42. U-shaped side plate; 3. Clamping block; 44. Positioning bracket; 441. Baffle; 442. Bottom support block; 443. Open support plate; 444. Rack plate; 445. Inclined support plate; 401. Groove; 402. Positioning groove; 45. Idler roller; 451. Groove; 46. Transmission gear; 47. Bracket; 5. Moving frame; 6. Telescopic cylinder; 7. Embedded sleeve body; 8. Reinforcing bar; 9. Top support cylinder; 10. Fixed frame; 11. Vertical rod; 12. Slider; 13. Guide rail. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0020] Please see Figures 1-9 The present invention will describe the above technical solution in detail through the following embodiments: This embodiment provides a welding device for pre-embedded sleeve steel bars, the overall structure of which is as follows: Figure 1 As shown, the equipment is installed on the workbench 1. The opposing welding part is mainly composed of the sliding component 3 and the positioning clamping component 4. It is specifically designed for the process requirement of uniformly welding four steel bars 8 on the outer circumference of the pre-embedded sleeve body 7 for prefabricated buildings. It can complete the precise positioning, automatic butt welding, 90° automatic flipping and repositioning, and secondary welding of the steel bars 8 and the pre-embedded sleeve body 7 in one go, reducing manual intervention throughout the process and significantly improving welding accuracy, work efficiency and operation safety.

[0021] like Figure 1 , Figure 2As shown, the opposing welding section consists of two welding components 2 with identical structures and symmetrical arrangement. The two welding components 2 are installed horizontally along the X-axis of the worktable 1 to form an opposing welding structure. A guide rail 13 is fixedly laid on the worktable 1 along the X-axis, and a slider 12 is slidably fitted on the guide rail 13. The top of the slider 12 is fixedly connected to the bottom of the vertical frame 21 of the welding component 2 in a detachable manner, which provides stable guidance for the horizontal movement of the welding component 2, avoids deviation during the movement, and ensures that the welding torch 28 is accurately aligned with the welding position.

[0022] In this embodiment, a telescopic cylinder 6 is also fixedly installed on the workbench 1. The output end of the telescopic cylinder 6 is fixedly connected to the vertical frame 21. Through the extension and retraction of the telescopic cylinder 6, the vertical frame 21 is driven to move horizontally back and forth along the guide rail 13, thereby realizing that the two welding components 2 move towards the positioning clamping component 4 at the same time or move away from the positioning clamping component 4 at the same time, thus completing the welding feed and reset action.

[0023] The specific structure of welding component 2 is as follows: Figure 2 As shown, the vertical frame 21 serves as the main support, with two parallel sliding rods 23 vertically fixed on it. A lifting cylinder 22 is fixedly installed at the center of the top of the vertical frame 21. The output shaft of the lifting cylinder 22 is vertically connected to the lifting block 24. The two sides of the lifting block 24 are fixedly connected to the mounting plate 26 via connecting rods 25. The mounting plate 26 is slidably fitted onto the sliding rods 23. Driven by the lifting cylinder 22, the lifting block 24 drives the mounting plate 26 to rise and fall smoothly along the sliding rods 23 via the connecting rods 25, avoiding swaying and tilting during the lifting process. The welding torch 28 is detachably installed on the mounting plate 26 via a clamping seat 27. The clamping seat 27 can flexibly adjust the angle and extension length of the welding torch 28 to adapt to welding operations of pre-embedded sleeves 7 and reinforcing bars 8 of different diameters and lengths. The welding torch 28 is easy to install and remove, facilitating daily maintenance and replacement.

[0024] like Figure 1 , Figure 3As shown, the sliding assembly 3 is horizontally installed along the Y-axis of the worktable 1, used to drive the positioning and clamping assembly 4 to move precisely along the Y-axis, cooperating with the welding assembly 2 to complete welding operations at different positions; the sliding assembly 3 consists of a first positioning block 31, a second positioning block 32, a drive motor 33, a lead screw 34, a guide rod 35, a sliding block 36, and a mounting plate 37. The first positioning block 31 and the second positioning block 32 are respectively fixed at both ends of the worktable 1 along the Y-axis, and the lead screw 34 and the guide rod 35 are installed parallel between the two positioning blocks. The guide rod 35 provides movement guidance, and the lead screw 34 provides transmission power. The drive motor 33 is fixedly installed on the outside of the second positioning block 32, and its output shaft passes through the second positioning block 32 and is coaxially fixedly connected to the lead screw 34 to ensure stable power transmission. The lead screw 34 is threadedly fitted with a sliding block 36, which simultaneously slides on the guide rod 35 to prevent the sliding block 36 from rotating with the lead screw 34. The top of the sliding block 36 is fixedly mounted on a mounting plate 37, and the positioning clamping assembly 4 is securely mounted on the mounting plate 37 via a moving frame 5. When the drive motor 33 rotates in the forward or reverse direction, it drives the lead screw 34 to rotate, thereby driving the sliding block 36 to move smoothly along the guide rod 35, ultimately achieving precise positioning of the positioning clamping assembly 4 along the Y-axis to ensure accurate welding position.

[0025] like Figures 4 to 7 As shown, the positioning and clamping assembly 4 is the core structure for achieving precise positioning and automatic flipping of the pre-embedded sleeve body 7 and the reinforcing bar 8. It is installed on the moving frame 5 and mainly includes a connecting base plate 41, a U-shaped side plate 42, a clamping block 43, a positioning support 44, a roller 45, a transmission gear 46, a bracket 47, a top support cylinder 9, a fixing frame 10, and a vertical rod 11. The connecting base plate 41 is horizontally installed on the top of the moving frame 5 as the lower support foundation. The U-shaped side plate 42 is vertically fixed to one end of the connecting base plate 41 to form a lateral support structure. The clamping block 43 is installed inside the U-shaped side plate 42 and corresponds to the vertical position of the connecting base plate 41. It is used to cooperate with the positioning support 44 above to clamp and fix the pre-embedded sleeve body 7 and the reinforcing bar 8 to be welded from both the top and bottom directions to prevent the workpiece from shifting or shaking during the welding process.

[0026] The bottom of the movable frame 5 is securely mounted with a top support cylinder 9 via a fixed frame 10. The top support cylinder 9 is arranged vertically and is fixedly connected to a vertical rod 11 on the output axis. The vertical rod 11 moves upward and is inserted through the connecting base plate 41 and the movable frame 5 in sequence. The top end is fixedly connected to the center of the bottom of the positioning support 44. The top support cylinder 9 drives the vertical rod 11 to rise and fall through the telescopic movement, thereby driving the positioning support 44 to rise and fall vertically as a whole. This achieves the clamping, positioning, loosening, and flipping of the pre-embedded sleeve cylinder 7 and the reinforcing bar 8. The lifting and lowering movements are smooth, the clamping force is uniform, and the workpiece positioning is stable.

[0027] The structure of the positioning bracket 44 is as follows Figure 8As shown, the overall structure is an integrated positioning support structure, including a bottom support block 442, a baffle 441, an open support plate 443, an inclined support plate 445, and a rack plate 444. The bottom support block 442 is the main supporting body in the middle, and the baffle 441 and the open support plate 443 are fixedly connected to both ends, forming a stable frame structure. Corresponding slots are provided on the open support plate 443 and the bottom support block 442, and the size of the slots matches the outer diameter of the pre-embedded sleeve body 7, which is used to horizontally and stably support the pre-embedded sleeve body 7 and ensure that the body is placed... The baffle 441 is vertically arranged at the end of the pre-embedded sleeve body 7 to abut against the end faces of the pre-embedded sleeve body 7 and the reinforcing bar 8, forcibly constraining the end positions of the reinforcing bar 8 and the pre-embedded sleeve body 7, ensuring that one end of multiple reinforcing bars 8 is flush after welding, meeting the anchoring construction requirements of prefabricated buildings; in other embodiments, an electromagnetic attraction device can be added to the inside of the baffle 441, and the reinforcing bar 8 and the end face of the pre-embedded sleeve body 7 can be further attracted and aligned by magnetic attraction force to improve positioning accuracy.

[0028] An inclined support plate 445 is fixedly installed between a baffle plate 441 and an open support plate 443, corresponding to the central position at both ends of the pre-embedded sleeve body 7, providing central support for the reinforcing bar 8. A bar placement groove corresponding to the position of the inclined support plate 445 is opened on the open support plate 443. The size of the bar placement groove matches the outer diameter of the reinforcing bar 8. It works with the inclined support plate 445 to support the reinforcing bar 8 to be welded, so that the reinforcing bar 8 is stably attached to the preset welding position on the outer circumferential wall of the pre-embedded sleeve body 7, ensuring that the reinforcing bar 8 is evenly distributed and the angle is accurate. A positioning groove 402 is opened at the bottom of the placement groove. The positioning groove 402 corresponds to the position of the reinforcing bar 8. It is used to support the already welded reinforcing bar 8 after the pre-embedded sleeve body 7 is rotated 90°, to avoid the position of the reinforcing bar 8 shifting after rotation, and to ensure the accuracy of secondary welding. A vertical groove 401 is opened on the baffle plate 441. A rack plate 444 is vertically fixedly embedded in the groove 401 and rises and falls synchronously with the positioning support 44, providing power transmission for the rotation of the roller 45.

[0029] Specifically, two sets of rollers 45 are rotatably mounted on the connecting base plate 41 via two sets of vertically fixed brackets 47. The two sets of rollers 45 are symmetrically distributed on both sides of the bottom of the pre-embedded sleeve body 7, and the installation position of the rollers 45 is between the inclined support plate 445 and the bottom support block 442. A reasonable gap is reserved between the inclined support plate 445 and the bottom support block 442. This gap can effectively prevent structural collision between the positioning support 44 and the rollers 45 during the lifting and lowering process, ensuring stable operation of the equipment. The roller end of the roller 45 is coaxially fixedly mounted with a transmission gear 46. The transmission gear 46 meshes with the rack plate 444 on the baffle 441 to form a stable gear and rack transmission structure. When the positioning support 44 is lifted and lowered, the transmission gear 46 will mesh with the rack plate 444. Through the meshing action, the transmission gear 46 will rotate, thereby driving the two sets of rollers 45 to rotate in the same direction. The rotation angle and speed are completely consistent, ensuring that the pre-embedded sleeve body 7 is subjected to uniform force.

[0030] like Figure 9 As shown, in this embodiment, the idler roller 45 rotates clockwise, driving the pre-embedded sleeve cylinder 7 to complete a 90° flip. To avoid interference between the welded steel bar 8 and the idler roller 45 during the flipping process, a groove 451 is provided on the roller body of the idler roller 45 at the rear end of the conveying direction. The groove 451 provides rotational clearance space for the welded steel bar 8, allowing the steel bar 8 to smoothly enter the groove 451 without affecting the flipping action of the pre-embedded sleeve cylinder 7. Since the meshing transmission distance between the transmission gear 46 and the rack plate 444 is constant, the rotation angle and rotation position of the two sets of idler rollers 45 always maintain precise correspondence, and there will be no misalignment or jamming, ensuring that the pre-embedded sleeve cylinder 7 can smoothly and accurately complete the 90° flipping and repositioning.

[0031] The workflow of the pre-embedded sleeve rebar welding equipment in this embodiment is as follows: First, the pre-embedded sleeve cylinder 7 is placed stably in the cylinder placement groove of the positioning support 44. Two horizontal rebars 8 to be welded are placed on the rebar placement groove and the inclined support plate 445 respectively. The ends of the rebars 8 abut against the baffle plate 441 to achieve preliminary positioning. Then, the top support cylinder 9 is started. The top support cylinder 9 drives the vertical rod 11 to rise, which drives the positioning support 44 to move upward. With the cooperation of the clamping block 43 on the U-shaped side plate 42, the pre-embedded sleeve cylinder 7 and the rebars 8 are firmly clamped and fixed. After the top support clamping is completed, the roller 45 does not contact the outer wall of the pre-embedded sleeve cylinder 7 to avoid the roller 45 interfering with the positioning and welding operation.

[0032] Next, the welding proceeds in opposite directions. The telescopic cylinder 6 is activated, driving the two welding components 2 to move synchronously in opposite directions along the X-axis. The lifting cylinder 22 is activated, adjusting the height of the welding torch 28 to a suitable welding position, so that the welding torch 28 is precisely aligned with the welding contact surface between the reinforcing bar 8 and the pre-embedded sleeve body 7. Then, the welding torch 28 is activated, cooperating with the positioning and clamping component 4 to move along the Y-axis. The two welding torches 28 work synchronously to complete the welding operation of the first set of two reinforcing bars 8 and the pre-embedded sleeve body 7. During the welding process, the workpiece is fixed and stable, without deviation or shaking, and the welding quality is uniform.

[0033] After the first set of reinforcing bars 8 is welded, the top support cylinder 9 drives the positioning support 44 to descend. During the descent, the pre-embedded sleeve body 7 disengages from the support of the positioning support 44 and falls suspended on the two sets of rollers 45. The positioning support 44 continues to descend, and the rack plate 444 on the baffle 441 moves down synchronously. Through the meshing action with the transmission gear 46, it drives the two sets of rollers 45 to rotate clockwise in the same direction. The rollers 45 generate friction with the outer wall of the pre-embedded sleeve body 7, thereby driving the pre-embedded sleeve body 7 to rotate smoothly 90° clockwise. During the rotation process, the welded reinforcing bars 8 enter the groove 451 of the rollers 45 without interference or jamming, and the rotation position is accurate.

[0034] Secondary welding: After the flipping is completed, the top support cylinder 9 drives the positioning support 44 to rise again, re-clamping and fixing the flipped pre-embedded sleeve body 7 with the placed unwelded steel bars 8. The welded steel bars 8 fall into the positioning slot 402 and remain in a stable position. Then the welding assembly 2 moves in opposite directions again, and the welding gun 28 welds the second group of two steel bars 8 to the pre-embedded sleeve body 7, finally completing the uniform welding operation of the four steel bars 8 on the outer four sides of the pre-embedded sleeve body 7. After all welding is completed, the top support cylinder 9 drives the positioning support 44 to fall, the clamping block 43 releases the workpiece, the operator removes the welded pre-embedded sleeve assembly, and all parts of the equipment are reset, waiting for the next operation cycle.

[0035] This embodiment achieves high-precision workpiece positioning through the cooperation of positioning support 44 and clamping block 43, precise adjustment of welding position through sliding component 3, and automated synchronous welding through opposing welding component 2. The gear and rack drive drives the roller 45 to rotate in the same direction, realizing automatic and stable 90° flipping of the workpiece. The entire process does not require manual positioning, flipping, or hand welding, effectively solving the problems of poor positioning accuracy, uneven distribution of reinforcing bars, uneven ends, low efficiency, high rework rate of false welds, and great safety hazards in traditional manual operations. The equipment is stable in operation and easy to operate, and is suitable for the mass automated welding production of pre-embedded sleeves in prefabricated buildings. It has good practicality and promotion value.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] 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 the spirit or essential characteristics of the invention. 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, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A welding device for pre-embedded sleeve steel bars, comprising a workbench (1), characterized in that: Also includes: The opposing welding section includes two welding components (2) that are horizontally movable along the X-axis of the worktable (1), and a positioning clamping component (4) that is installed between the two welding components (2) and horizontally movable along the Y-axis. The positioning clamping assembly (4) includes a connecting base plate (41) with a U-shaped side plate (42) vertically installed at one end. A clamping block (43) corresponding to the position of the connecting base plate (41) is installed on the U-shaped side plate (42), and a positioning support (44) is lifted and installed above the connecting base plate (41). The positioning support (44) and the clamping block (43) are used to clamp and fix the pre-embedded sleeve cylinder (7) and the steel bar (8) to be welded. A roller (45) is rotatably installed above the connecting base plate (41) and on both sides of the bottom of the pre-embedded sleeve body (7). During the descent of the positioning support (44), the roller (45) rotates in the same direction and drives the pre-embedded sleeve body (7) to rotate 90° to change the welding position.

2. The pre-embedded sleeve steel bar welding equipment as described in claim 1, characterized in that: The positioning support (44) includes a bottom support block (442) with baffles (441) and open support plate (443) fixedly connected at both ends. The open support plate (443) and the bottom support block (442) are provided with a cylinder groove for horizontally supporting the pre-embedded sleeve cylinder (7). An inclined support plate (445) is installed between the baffle (441) and the open support plate (443) and at the corresponding position at the center of both ends of the pre-embedded sleeve body (7). The open support plate (443) is provided with a bar groove corresponding to the inclined support plate (445) and used to support the steel bar (8) to be welded.

3. The pre-embedded sleeve steel bar welding equipment as described in claim 2, characterized in that: The connecting base plate (41) is rotatably mounted on the support roller (45) via a vertically mounted bracket (47). At least one end of the support roller (45) is coaxially mounted with a transmission gear (46), and the support roller (45) is located between the inclined support plate (445) and the bottom support block (442). The baffle (441) is provided with a groove (401) for vertically mounting the rack plate (444), and the rollers (45) on both sides mesh with the corresponding rack plate (444) through the transmission gear (46) and keep rotating in the same direction.

4. The pre-embedded sleeve steel bar welding equipment as described in claim 3, characterized in that: The connecting base plate (41) is installed on the movable frame (5). The bottom of the movable frame (5) is fixedly installed with a top support cylinder (9) through a fixed frame (10). A vertical rod (11) is fixedly installed on the output shaft of the top support cylinder (9). The vertical rod (11) is inserted through the connecting base plate (41) and the movable frame (5) and is fixedly connected to the bottom of the positioning bracket (44).

5. The pre-embedded sleeve steel bar welding equipment as described in claim 4, characterized in that: The bottom end of the placement groove is provided with a positioning bracket (402), which is used to support the steel bar (8) after welding and flipping 90°.

6. The pre-embedded sleeve steel bar welding equipment as described in claim 3, characterized in that: The idler roller (45) located at the rear end of the conveying direction has a groove (451) on its roller body. The groove (451) is used to prevent the welded steel bar (8) from getting stuck during the rotation of the pre-embedded sleeve cylinder (7) during the flipping process.

7. The pre-embedded sleeve steel bar welding equipment as described in claim 3, characterized in that: The welding assembly (2) includes a vertical frame (21) with at least two slide rods (23) mounted vertically. A lifting cylinder (22) is fixedly mounted on the vertical frame (21). A lifting block (24) is mounted at the output shaft of the lifting cylinder (22). The lifting block (24) is connected to a mounting plate (26) via a connecting rod (25). The mounting plate (26) is slidably mounted on the slide rods (23). A welding torch (28) is detachably mounted on the mounting plate (26) via a clamping seat (27).

8. The pre-embedded sleeve steel bar welding equipment as described in claim 7, characterized in that: The workbench (1) is horizontally mounted with a guide rail (13) along the X-axis, and a slider (12) is slidably mounted on the guide rail (13). The slider (12) is detachably mounted at the bottom of the vertical frame (21). The workbench (1) is equipped with a telescopic cylinder (6) for driving the vertical frame (21) to move.

9. The pre-embedded sleeve steel bar welding equipment as described in claim 4, characterized in that: A sliding assembly (3) is horizontally mounted on the worktable (1). The sliding assembly (3) includes a lead screw (34) and a guide rod (35) mounted along the Y-axis. The lead screw (34) and the guide rod (35) are equipped with a first positioning block (31) and a second positioning block (32) at both ends, and a drive motor (33) with an output shaft coaxially connected to the lead screw (34) is installed on the second positioning block (32).

10. The pre-embedded sleeve steel bar welding equipment as described in claim 9, characterized in that: A sliding block (36) is threaded onto the lead screw (34), and the sliding block (36) is slidably mounted on the guide rod (35); The sliding block (36) is equipped with an mounting platform (37), and the movable frame (5) is detachably mounted on the mounting platform (37).

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