Truss base welding tool

Through the cooperation of the clamping mechanism and the magnetic press plate, the positioning problem of steel bar trusses of different specifications is solved, the stability and accuracy of welding are improved, and the efficiency of automated welding is improved.

CN223210773UActive Publication Date: 2025-08-12CHINA RAILWAY FIRST GROUP CO LTD +1
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Patent Information

Application Number
CN202521458346.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2025-08-12
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

The existing welding tooling cannot meet the positioning needs of steel bar trusses of different specifications, resulting in trusses shaking during welding, affecting the offset of welding points and reducing the assembly accuracy of the bearing plate.

Method used

The clamping mechanism and the magnetic press plate are used to double fix the clamping mechanism, combined with the longitudinal and lateral movement mechanism, precise positioning and stable clamping are achieved through the PLC controller, and the elastic telescopic rod is used to compensate for the surface error of the workpiece to ensure welding stability.

Benefits of technology

It improves the stability and accuracy of welding, prevents workpieces from shaking, and improves the automation efficiency and accuracy of welding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223210773U_ABST
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Abstract

The utility model relates to the field of welding devices, and discloses a truss base welding tool which comprises a bottom plate, a support is fixedly arranged at the top of the bottom plate, a longitudinal moving mechanism is arranged at the top of the support, a first air cylinder is fixedly arranged at the bottom of the longitudinal moving mechanism, and a mounting plate is fixedly arranged at the moving end of the first air cylinder. A motor is fixedly arranged on the lower surface of the mounting plate, a transverse moving mechanism is arranged on an output shaft of the motor, a fixing plate is fixedly arranged at the bottom of the transverse moving mechanism, and a welding gun is obliquely and fixedly arranged on the side face of the fixing plate; an elastic telescopic rod is fixedly arranged at the bottom of the transverse moving mechanism, and a magnetic pressing plate is fixedly arranged at the lower end of the elastic telescopic rod. Through double fixation of the clamping mechanism and the magnetic pressing plate, the steel bar truss and the base can be stably clamped, the longitudinal moving mechanism, the transverse moving mechanism and the PLC are matched, the position of the welding gun can be accurately adjusted to adapt to workpieces of different specifications, automatic welding is achieved, and welding stability, precision and efficiency are improved.
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Description

Technical Field

[0001] The utility model relates to the field of welding devices, in particular to a truss base welding tool. Background Art

[0002] In the field of construction engineering, steel truss floor decking, as a combined load-bearing structure, is widely used in the floor construction of high-rise buildings and industrial plants due to its advantages such as high rigidity and convenient construction. Steel truss floor decking is welded by steel trusses (with steel bars as upper chords, lower chords and webs, connected into a truss structure by resistance spot welding) and a base (usually steel plates or galvanized corrugated steel plates). The welding quality directly affects the load-bearing capacity and structural safety of the floor.

[0003] Existing welding tooling mostly uses fixed slots or simple clamping, which cannot adapt to the positioning requirements of steel trusses of different specifications. When the truss size changes, the gap between the slot and the truss increases, causing the truss to shake during welding and the weld point offset to be large, seriously affecting the assembly accuracy of the floor deck.

[0004] Therefore, a truss base welding tool is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the background technology and to propose a truss base welding tool.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A truss base welding tool comprises a base plate, a bracket is fixedly provided on the top of the base plate, a longitudinal movement mechanism is provided on the top of the bracket, and a first cylinder is fixedly provided on the bottom of the longitudinal movement mechanism, a mounting plate is fixedly provided on the moving end of the first cylinder, a motor is fixedly provided on the lower surface of the mounting plate, a transverse movement mechanism is provided on the output shaft of the motor, and a fixing plate is fixedly provided on the bottom of the transverse movement mechanism, and a welding gun is fixedly provided on an inclined side of the fixing plate;

[0008] An elastic telescopic rod is fixedly provided at the bottom of the lateral moving mechanism, and a magnetic pressing plate is fixedly provided at the lower end of the elastic telescopic rod;

[0009] Clamping mechanisms are provided on both sides of the top of the bottom plate, and the magnetic pressure plate is located above the two clamping mechanisms;

[0010] A PLC controller is fixedly provided on the side wall of the bracket, and the longitudinal moving mechanism, the first cylinder, the motor, the transverse moving mechanism, the welding gun, the magnetic pressure plate and the clamping mechanism are all electrically connected to the PLC controller.

[0011] Preferably, the longitudinal movement mechanism includes a longitudinal slide rail fixedly arranged on the top of the bracket, a longitudinal slide seat is slidably fitted on the longitudinal slide rail, and the first cylinder is fixedly arranged on the bottom of the longitudinal slide seat.

[0012] Preferably, the transverse movement mechanism includes a transverse slide rail fixedly arranged on the output shaft of the motor, a transverse slide seat is slidably fitted on the transverse slide rail, and the fixed plate is fixedly arranged on the bottom of the transverse slide seat.

[0013] Preferably, the elastic telescopic rod includes a sleeve fixedly arranged at the bottom of the transverse slide rail, a moving rod is provided inside the sleeve, a spring is fixed between the upper end of the moving rod and the inner wall of the sleeve, and the lower end of the moving rod is fixedly connected to the magnetic pressure plate.

[0014] Preferably, limiting blocks are fixedly provided on both sides of the rod wall of the movable rod, and the inner side wall of the sleeve is provided with limiting grooves matched with the limiting blocks.

[0015] Preferably, the clamping mechanism includes a fixing seat fixedly arranged on the top of the base plate, a second cylinder is fixedly provided on the side wall of the fixing seat, and a clamping plate is fixedly provided on the movable end of the second cylinder.

[0016] Preferably, the magnetic pressure plate is a hollow structure, and an electromagnetic block is fixedly provided inside the magnetic pressure plate, and a magnetic conductive plate is fixedly embedded on the lower surface of the magnetic pressure plate.

[0017] Compared with the prior art, the present invention provides a truss base welding tool with the following beneficial effects:

[0018] 1. The truss base welding fixture achieves dual fixation through a clamping mechanism and a magnetic pressure plate to improve welding stability. The clamping mechanism on both sides of the top of the base plate pushes the clamping plate to clamp the base through the second cylinder. At the same time, the magnetic pressure plate is pressed down by the elastic telescopic rod. After the internal electromagnetic block is energized, the truss is adsorbed through the magnetic plate to form a two-way fixation up and down. The spring of the elastic telescopic rod can adaptively compensate for the surface error of the workpiece to prevent the workpiece from shaking during welding, solving the accuracy problem caused by the unstable fixation of traditional fixtures.

[0019] 2. The truss base welding fixture achieves multi-specification adaptation and precise positioning through longitudinal and transverse moving mechanisms. The longitudinal slide of the longitudinal moving mechanism slides on the longitudinal slide rail, cooperating with the first cylinder to adjust the height and longitudinal position of the welding gun; the motor drives the transverse slide of the transverse moving mechanism to slide on the transverse slide rail to achieve transverse displacement and angle adjustment of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the first perspective of a truss base welding tool proposed in the utility model;

[0021] Figure 2 This is a perspective view of the second perspective of a truss base welding tool proposed in the present invention;

[0022] Figure 3 A three-dimensional diagram of a portion of the bracket proposed in the present invention;

[0023] Figure 4 This is a three-dimensional diagram of the elastic telescopic rod and magnetic pressure plate proposed in the utility model.

[0024] In the figure: 1. Base plate; 2. Bracket; 3. Longitudinal moving mechanism; 31. Longitudinal slide rail; 32. Longitudinal slide seat; 4. First cylinder; 5. Mounting plate; 6. Motor; 7. Transverse moving mechanism; 71. Transverse slide rail; 72. Transverse slide seat; 8. Fixed plate; 9. Welding gun; 10. Elastic telescopic rod; 101. Sleeve; 102. Moving rod; 103. Spring; 104. Limit block; 105. Limit groove; 11. Magnetic pressure plate; 12. Clamping mechanism; 121. Fixed seat; 122. Second cylinder; 123. Clamping plate; 13. PLC controller; 14. Electromagnetic block; 15. Magnetic plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] Reference Figure 1-4A truss base welding tool comprises a base plate 1, a bracket 2 is fixedly provided on the top of the base plate 1, a longitudinal moving mechanism 3 is provided on the top of the bracket 2, and a first cylinder 4 is fixedly provided at the bottom of the longitudinal moving mechanism 3, the longitudinal moving mechanism 3 comprises a longitudinal slide rail 31 fixedly provided on the top of the bracket 2, a longitudinal slide seat 32 is slidably provided on the longitudinal slide rail 31, and the first cylinder 4 is fixedly provided at the bottom of the longitudinal slide seat 32; a mounting plate 5 is fixedly provided at the moving end of the first cylinder 4, a motor 6 is fixedly provided on the lower surface of the mounting plate 5, a transverse moving mechanism 7 is provided on the output shaft of the motor 6, and a fixed plate 8 is fixedly provided at the bottom of the transverse moving mechanism 7, the transverse moving mechanism 7 comprises a transverse slide rail 71 fixedly provided on the output shaft of the motor 6, a transverse slide seat 72 is slidably provided on the transverse slide rail 71, and the fixed plate 8 is fixedly provided at the bottom of the transverse slide seat 72; a welding gun 9 is fixedly provided on the side of the fixed plate 8 at an angle;

[0028] An elastic telescopic rod 10 is fixed to the bottom of the transverse moving mechanism 7, and a magnetic pressure plate 11 is fixed to the lower end of the elastic telescopic rod 10. The elastic telescopic rod 10 includes a sleeve 101 fixed to the bottom of the transverse slide rail 71, a moving rod 102 is provided inside the sleeve 101, a spring 103 is fixed between the upper end of the moving rod 102 and the inner wall of the sleeve 101, and the lower end of the moving rod 102 is fixedly connected to the magnetic pressure plate 11. Limit blocks 104 are fixed on both sides of the rod wall of the moving rod 102, and the inner wall of the sleeve 101 is provided with a limit block. 104 cooperates with the limit groove 105, the limit block 104 and the limit groove 105 can play the role of sliding limit, preventing the moving rod 102 from rotating inside the sleeve 101; the magnetic pressure plate 11 is a hollow structure, and an electromagnetic block 14 is fixedly provided inside the magnetic pressure plate 11, and a magnetic conductive plate 15 is fixedly embedded on the lower surface of the magnetic pressure plate 11. When the electromagnetic block 14 is energized, it can generate a magnetic adsorption force on the truss. At the same time, after welding is completed, the welding slag on the surface of the bottom plate 1 can be magnetically adsorbed and cleaned through the magnetic pressure plate 11 without manual cleaning.

[0029] Clamping mechanisms 12 are installed on both sides of the top of the base plate 1. The magnetic pressure plate 11 is located above the two clamping mechanisms 12. The clamping mechanism 12 includes a fixed base 121 fixed to the top of the base plate 1. A second cylinder 122 is fixed to the side wall of the fixed base 121. A clamping plate 123 is fixed to the movable end of the second cylinder 122. The movable end of the second cylinder 122 extends to drive the clamping plate 123 to move, so that the two clamping plates 123 clamp the base.

[0030] A PLC controller 13 is fixed to the side wall of the bracket 2 , and the longitudinal moving mechanism 3 , the first cylinder 4 , the motor 6 , the transverse moving mechanism 7 , the welding gun 9 , the magnetic pressure plate 11 and the clamping mechanism 12 are all electrically connected to the PLC controller 13 .

[0031] The PLC controller 13 can control the longitudinal moving mechanism 3, the first cylinder 4, the motor 6, the transverse moving mechanism 7, the welding gun 9, the magnetic pressure plate 11 and the clamping mechanism 12 by referring to conventional methods in the art.

[0032] When performing welding operations, the worker first places the steel truss and the base on the base plate 1 and between the two clamping mechanisms 12. Then, the worker operates the PLC controller 13 to start the clamping mechanism 12. The second cylinder 122 in the clamping mechanism 12 pushes the clamping plate 123 to move, thereby clamping and fixing the base. Subsequently, the PLC controller 13 controls the longitudinal movement mechanism 3 to work. The longitudinal slide 32 in the longitudinal movement mechanism 3 slides on the longitudinal slide rail 31, driving the first cylinder 4, the mounting plate 5, the motor 6, the transverse movement mechanism 7, the fixing plate 8, the welding gun 9, the elastic telescopic rod 10 and the magnetic pressure plate 11 and other components to move longitudinally, so that the welding gun 9 and the magnetic pressure plate 11 reach the appropriate longitudinal position.

[0033] After reaching the longitudinal position, the first cylinder 4 is actuated to push the mounting plate 5 downward, thereby causing the motor 6, the transverse moving mechanism 7, and the magnetic pressure plate 11 to move downward, adjusting the height of the welding gun 9 and the magnetic pressure plate 11. Afterwards, the motor 6 is started, driving the transverse slide rail 71 in the transverse moving mechanism 7 to rotate, and the transverse slide 72 slides on the transverse slide rail 71 to achieve transverse movement, thereby adjusting the transverse position of the welding gun 9 so that the welding gun 9 is aligned with the welding point;

[0034] When the welding gun 9 is adjusting its height, the magnetic pressure plate 11 will also move downward and contact the truss placed on top of the base plate. The magnetic pressure plate 11 is pressed down by the elastic telescopic rod 10. The moving rod 102 in the elastic telescopic rod 10 slides in the sleeve 101. The spring 103 provides a buffering force to ensure that the magnetic pressure plate 11 is tightly pressed on the steel truss and the base. At the same time, the staff operates the PLC controller 13 to control the electromagnetic block 14 inside the magnetic pressure plate 11 to energize, so that the magnetic pressure plate 11 absorbs the steel truss through the magnetic plate 15, further fixing the truss and the base to prevent shaking during welding.

[0035] At this time, the welding gun 9 performs welding operations under the control of the PLC controller 13. During the welding process, the longitudinal moving mechanism 3 and the transverse moving mechanism 7 can work together according to the needs of the welding path to drive the welding gun 9 to move and complete welding at different positions. When adjusting the longitudinal position, it is necessary to disconnect the power supply of the electromagnetic block 14 to ensure that the magnetic pressure plate 11 can move longitudinally.

[0036] After welding is completed, the electromagnetic block 14 is powered off, the magnetic pressure plate 11 loses its magnetism, the first cylinder 4 drives the components to move upward, the longitudinal moving mechanism 3 and the transverse moving mechanism 7 are reset, the second cylinder 122 of the clamping mechanism 12 retracts, and the clamping plate 123 is released and can be taken out.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A truss base welding tool, comprising a base plate (1), characterized in that: A bracket (2) is fixedly provided on the top of the base plate (1), a longitudinal moving mechanism (3) is provided on the top of the bracket (2), and a first cylinder (4) is fixedly provided on the bottom of the longitudinal moving mechanism (3), a mounting plate (5) is fixedly provided on the moving end of the first cylinder (4), a motor (6) is fixedly provided on the lower surface of the mounting plate (5), an output shaft of the motor (6) is provided with a transverse moving mechanism (7), and a fixing plate (8) is fixedly provided on the bottom of the transverse moving mechanism (7), and a welding gun (9) is fixedly provided on the side surface of the fixing plate (8); An elastic telescopic rod (10) is fixedly provided at the bottom of the transverse moving mechanism (7), and a magnetic pressing plate (11) is fixedly provided at the lower end of the elastic telescopic rod (10); Clamping mechanisms (12) are provided on both sides of the top of the bottom plate (1), and the magnetic pressure plate (11) is located above between the two clamping mechanisms (12); A PLC controller (13) is fixedly provided on the side wall of the bracket (2), and the longitudinal moving mechanism (3), the first cylinder (4), the motor (6), the transverse moving mechanism (7), the welding gun (9), the magnetic pressure plate (11) and the clamping mechanism (12) are all electrically connected to the PLC controller (13).

2. The truss base welding tool according to claim 1, characterized in that: The longitudinal movement mechanism (3) comprises a longitudinal slide rail (31) fixedly arranged on the top of the bracket (2), a longitudinal slide seat (32) is slidably fitted on the longitudinal slide rail (31), and the first cylinder (4) is fixedly arranged on the bottom of the longitudinal slide seat (32).

3. The truss base welding tool according to claim 1, characterized in that: The transverse movement mechanism (7) comprises a transverse slide rail (71) fixedly arranged on the output shaft of the motor (6), a transverse slide seat (72) is slidably fitted on the transverse slide rail (71), and the fixed plate (8) is fixedly arranged at the bottom of the transverse slide seat (72).

4. The truss base welding tool according to claim 3, characterized in that: The elastic telescopic rod (10) comprises a sleeve (101) fixedly arranged at the bottom of the transverse slide rail (71); a moving rod (102) is provided inside the sleeve (101); a spring (103) is fixedly provided between the upper end of the moving rod (102) and the inner wall of the sleeve (101); and the lower end of the moving rod (102) is fixedly connected to the magnetic pressure plate (11).

5. The truss base welding tool according to claim 4, characterized in that: Limit blocks (104) are fixedly provided on both sides of the rod wall of the movable rod (102), and the inner side wall of the sleeve (101) is provided with a limit groove (105) that matches the limit block (104).

6. The truss base welding tool according to claim 1, characterized in that: The clamping mechanism (12) comprises a fixing seat (121) fixedly arranged on the top of the base plate (1), a second cylinder (122) being fixedly arranged on the side wall of the fixing seat (121), and a clamping plate (123) being fixedly arranged on the movable end of the second cylinder (122).

7. The truss base welding tool according to claim 1, characterized in that: The magnetic pressing plate (11) is a hollow structure, and an electromagnetic block (14) is fixedly provided inside the magnetic pressing plate (11), and a magnetic conductive plate (15) is fixedly embedded on the lower surface of the magnetic pressing plate (11).