A multi-functional auxiliary welding platform

Abstract

This utility model relates to the field of welding technology, and more particularly to a multifunctional auxiliary welding platform. It addresses the drawback of springback caused by accumulated internal stress in the welding of bent tubular boxes, which affects welding accuracy. The platform includes a movable platform with a detachable support frame. A motor is detachably mounted on the support frame, which is rotatably connected to a lead screw fixed to the motor's output shaft. A connecting block, threadedly connected to the lead screw, is slidably connected to the support frame. A welding device is detachably mounted on the connecting block. A clamping mechanism for holding the chassis is provided on the movable platform. This utility model, through the clamping mechanism, mimics the process of bending steel plates to form a chassis, limiting the front, top, and rear sides of the bent chassis. This prevents the chassis from deforming and returning to its original shape due to the inherent metal stress of the bent chassis, thus avoiding impacts on welding accuracy and quality.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a multifunctional auxiliary welding platform. Background Technology

[0002] Welding is a process and technology that joins two metal materials (or other thermoplastic materials) together by heating, high temperature or high pressure. In order to ensure that the dimensional accuracy of the welded components is not deviated due to misalignment, it is necessary to align the two components in advance using fixtures and positioning devices.

[0003] However, when welding some tubular boxes formed by bending, it is necessary to perform straight welding on the last side (i.e. the edge where the two mating surfaces that need to form a closed box meet). Although the existing fixtures can fix it, stress will accumulate inside the box because it is formed by bending. After the external force of bending is unloaded, springback will occur. This will cause the edges where the two mating surfaces that need to form a closed box meet to not make contact, thus affecting the welding accuracy and welding quality of the product. Utility Model Content

[0004] This utility model provides a multifunctional auxiliary welding platform that addresses the drawback of welding tubular boxes formed by bending, where the accumulated stress inside the box causes it to spring back, thus affecting the welding process.

[0005] The technical solution of this utility model is as follows: a multifunctional auxiliary welding platform, including a mobile platform, a support frame detachably mounted on the mobile platform, a motor detachably mounted on the support frame, a lead screw rotatably connected to the support frame, one end of the lead screw being fixedly connected to the output shaft of the motor, a connecting block slidably connected to the support frame, the connecting block being threadedly connected to the lead screw, a welding device detachably mounted on the connecting block, and a fixing mechanism for clamping the machine box provided on the mobile platform.

[0006] Furthermore, the fixing mechanism includes a clamp 1, which is detachably mounted on the mobile platform. An electric slide rail 1 is detachably mounted on the upper side of the mobile platform. An electric slider 1 is slidably connected inside the electric slide rail 1. A fixing frame is detachably mounted on the electric slider 1. A clamp 2 is slidably connected to the fixing frame. A tension spring 1 is provided between the clamp 2 and the fixing frame. A fixing component for further clamping the chassis is provided on the fixing frame.

[0007] Furthermore, the fixing component includes a sliding frame 1, which is slidably connected to the fixing frame, and a clamp 3 is slidably connected to the sliding frame 1. A tension spring 2 is provided between the sliding frame 1 and the clamp 3.

[0008] Furthermore, a rectangular hole is provided on fixture two, and the rectangular hole slides into fixture three.

[0009] Furthermore, it also includes symmetrically distributed internal support mechanisms, all of which are located on the upper side of the mobile platform. The internal support mechanisms are used to prevent the chassis from deforming inward. The internal support mechanisms include an electric slide rail II, which is detachably installed on the upper side of the mobile platform. An electric slider II is slidably connected inside the electric slide rail II. A sliding frame II is detachably installed on the electric slider II. Four positioning rods I arranged in a cross shape are slidably connected inside the sliding frame II. Positioning rods II are slidably connected inside the positioning rods I. A spring I is provided between the positioning rods I and the adjacent sliding frame II. A spring II is provided between the positioning rods I and the adjacent positioning rods II. An internal support positioning assembly is provided inside the sliding frame II.

[0010] Furthermore, the spring constant of spring one is greater than that of the adjacent spring two.

[0011] Furthermore, the internal support positioning assembly includes four compression rods, which are slidably connected to adjacent positioning rods one and two. The compression rods are in compression engagement with adjacent positioning rods two. A pawl is rotatably connected inside the positioning rod one, and a torsion spring is provided between the pawl and the adjacent positioning rod one. Four limiting frames arranged in a cross shape are fixed inside the sliding frame two. The pawl is in unidirectional limiting engagement with the adjacent limiting frame. A limiting plate is fixed to the pawl, and the limiting plate is in compression engagement with the adjacent compression rod. A reset assembly is provided on the sliding frame two.

[0012] Furthermore, the reset assembly includes a fixed shaft, which is fixedly connected to an adjacent sliding frame two. A turntable is rotatably connected to the fixed shaft. A connecting rope is connected between the positioning rod one and the adjacent turntable. The connecting rope passes through the adjacent sliding frame two. A limit block is slidably connected to the fixed shaft. The limit block is in a limiting engagement with the adjacent turntable.

[0013] Beneficial effects: This utility model first uses clamp two to press firmly against the rear side of the bending and forming machine box, then clamp three to press firmly against the upper side of the bending and forming machine box, and finally clamp one to press firmly against the front side of the bending and forming machine box. This simulates the process of bending steel plates to make a machine box, and limits the front, upper and rear sides of the bending and forming machine box. It also limits the bending and forming machine box, thereby preventing the deformation of the bending and forming machine box from returning to its original position due to the metal stress of the bending and forming machine box itself during the welding process. This would prevent the welding device from welding the two sides that make up the last side of the bending and forming machine box together, thus affecting the welding accuracy and welding quality of the bending and forming machine box.

[0014] This invention provides pre-support for the inner side of the bending and forming machine box by positioning rod two, thereby preventing the bending and forming machine box from deforming inward due to the lack of internal support when clamped by clamps two, three, and one. This would affect the welding device's ability to weld the two sides that make up the last side of the bending and forming machine box. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the lead screw, connecting block, and welding device of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the fixing mechanism of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the sliding frame 1, clamp 3, and tension spring 2 of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the electric slider 1, the fixing frame, and the clamp 2 of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the internal support mechanism of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the sliding frame 2, positioning rod 1, and positioning rod 2 of this utility model.

[0022] Figure 8 This is a three-dimensional structural cross-sectional view of the sliding frame 2 and the positioning rod 1 of this utility model.

[0023] Figure 9 This is a three-dimensional structural diagram of the extrusion rod, pawl, and limiting frame of this utility model.

[0024] Figure 10 This is a three-dimensional structural diagram of the turntable, connecting rope, and limiting block of this utility model.

[0025] The components in the diagram are labeled as follows: 1-Moving platform, 11-Support frame, 12-Motor, 13-Screw, 14-Connecting block, 15-Welding device, 2-Clamp one, 21-Electric slide rail one, 22-Electric slider one, 23-Fixed frame, 24-Clamp two, 25-Tension spring one, 3-Sliding frame one, 31-Clamp three, 32-Tension spring two, 4-Electric slide rail two, 41-Electric slider two, 42-Sliding frame two, 43-Positioning rod one, 44-Positioning rod two, 45-Spring one, 46-Spring two, 5-Extrusion rod, 51-Pawl, 52-Limiting frame, 53-Limiting plate, 6-Fixed shaft, 61-Turntable, 62-Connecting rope, 63-Limiting block. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0027] Example 1: A multifunctional auxiliary welding platform, referring to... Figure 1 and Figure 2 As shown, the system includes a mobile platform 1, on which a support frame 11 is mounted by bolts and nuts. A motor 12 is mounted on the support frame 11 by bolts and nuts. A lead screw 13 is rotatably connected to the support frame 11, with one end of the lead screw 13 fixedly connected to the output shaft of the motor 12. A connecting block 14 is slidably connected to the support frame 11, and the connecting block 14 is threadedly connected to the lead screw 13. A welding device 15 is mounted on the connecting block 14 by bolts and nuts. The welding device 15 is an existing welding mechanism, which will not be described in detail here. A fixing mechanism for clamping the machine housing is provided on the mobile platform 1.

[0028] Reference Figures 3-5 As shown, the fixing mechanism includes a clamp 2, which is mounted on the moving platform 1 by bolts and nuts. An electric slide rail 21 is mounted on the upper side of the moving platform 1 by bolts and nuts. An electric slider 22 is slidably connected inside the electric slide rail 21. A fixing frame 23 is mounted on the electric slider 22 by bolts and nuts. A clamp 24 is slidably connected to the fixing frame 23. A rectangular hole is opened on the clamp 24. Two tension springs 25 are provided between the clamp 24 and the fixing frame 23. A fixing component for further clamping the chassis is provided on the fixing frame 23.

[0029] Reference Figure 3 and Figure 4 As shown, the fixing component includes a sliding frame 3, which is slidably connected to the fixing frame 23. The sliding frame 3 is slidably connected to a clamp 31. The rectangular hole on the clamp 24 is slidably engaged with the clamp 31. Two tension springs 32 are provided between the sliding frame 3 and the clamp 31.

[0030] When welding is required on the chassis, the worker places the bent chassis on the moving platform 1, positioning it between clamp 2 and clamp 24, and places the edge to be welded on the lower side of the chassis's front side. Then, the worker activates the electric slide rail 21, and the electric slider 22 inside the electric slide rail 21 drives the fixed frame 23 forward until the front side of clamp 24 contacts the rear side of the bent chassis. Under the pressure of the rear side of the chassis, clamp 24 stops moving forward and moves backward relative to the fixed frame 23, while stretching the two tension springs 25. When the rear side of clamp 24 contacts the front side of the fixed frame 23, clamp 24 moves until its rectangular hole overlaps with the rear of sliding frame 3. Under the action of gravity, sliding frame 3 drives the parts on it to move downward, that is, sliding frame 3 enters the rectangular hole on clamp 24. When the lower side of clamp 31 contacts the upper side of the bent chassis, sliding frame 3 stops moving downward.

[0031] In the above process, when the sliding frame 3 enters the rectangular hole on the clamp 24, the clamp 24 begins to move forward with the fixed frame 23 and pushes the bent chassis forward until the front side of the bent chassis contacts the rear side of the clamp 2. At this point, the operator stops the electric slide rail 21. By first using the clamp 24 to press against the rear side of the bent chassis, then using the clamp 31 to press against the upper side of the bent chassis, and finally using the clamp 2 to press against the front side of the bent chassis, the process of bending steel plates to make a chassis is simulated. This limits the front, upper and rear sides of the bent chassis and prevents the bent chassis from deforming and returning to its original position due to the metal stress of the bent chassis itself during the welding process, thus preventing the welding device 15 from welding the two sides that make up the last side of the bent chassis together.

[0032] When the operator shuts off the electric slide rail 21, the operator starts the motor 12 and the welding device 15. The output shaft of the motor 12 drives the lead screw 13 to rotate, thereby driving the welding device 15 to move to the right via the transmission connecting block 14. The welding device 15 then welds the last side of the bending and forming machine box until the welding is completed. The operator then shuts off the welding device 15 and controls the output shaft of the motor 12 to reverse, thereby driving the welding device 15 to move to the left and reset via the transmission connecting block 14.

[0033] During the process of the welding device 15 moving to the left to reset, the operator lifts the sliding frame 3 upwards. The sliding frame 3 moves the clamp 31 upwards together through the two tension springs 32 until the sliding frame 3 moves out of the rectangular hole on the clamp 24. Then the operator starts the electric slide rail 21. The electric slider 22 in the electric slide rail 21 drives the fixed frame 23 to move backwards to reset. At this time, under the action of the two tension springs 25, the clamp 24 moves forward relative to the fixed frame 23 to reset until the rectangular hole on the clamp 24 no longer overlaps with the rear of the sliding frame 3. The operator releases the hand that lifted the sliding frame 3 upwards until the fixed frame 23 is reset to the initial state. Then the operator stops the electric slide rail 21.

[0034] As the sliding frame 3 moves downwards along with the parts on it, when the lower side of the clamp 31 contacts the upper side of the bending and forming machine housing, the sliding frame 3 continues to move downwards under the action of gravity, and stretches the two tension springs 32. The two tension springs 32 buffer the clamp 31 and the sliding frame 3 respectively, thereby reducing the impact force generated by the clamp 31 when it contacts the upper side of the bending and forming machine housing.

[0035] Example 2: Based on Example 1, referring to... Figures 6-10As shown, it also includes symmetrically distributed internal support mechanisms, both located on the upper side of the moving platform 1. These internal support mechanisms prevent the chassis from deforming inwards. Each internal support mechanism includes an electric slide rail 4, which is mounted to the upper side of the moving platform 1 using bolts and nuts. An electric slider 41 is slidably connected within the electric slide rail 4. A sliding frame 42 is mounted on the electric slider 41 using bolts and nuts. The sliding frame 42 has evenly distributed axial holes for fixing it with bolts and nuts. These evenly distributed axial holes allow the sliding frame 42 to be positioned relative to the electric slider 41. At the upper position, four positioning rods 43 arranged in a cross shape are slidably connected inside the sliding frame 2 42. Positioning rods 44 are slidably connected inside the positioning rods 43. Rolling wheels are provided at the ends of the four positioning rods 44 that are far apart from each other. A spring 45 is provided between the positioning rod 43 and the adjacent sliding frame 2 42. A spring 46 is provided between the positioning rod 43 and the adjacent positioning rod 44. The elastic coefficient of spring 45 is greater than that of the adjacent spring 46. In the initial state, spring 45 is in a compressed state, while spring 46 is in a normally extended state. An internal support positioning assembly is provided inside the sliding frame 2 42.

[0036] Reference Figure 8 and Figure 9 As shown, the internal support positioning assembly includes four compression rods 5, which are slidably connected to adjacent positioning rods 43. The compression rods 5 are in compression engagement with adjacent positioning rods 44. A pawl 51 is rotatably connected inside the positioning rod 43. A torsion spring is provided between the pawl 51 and the adjacent positioning rod 43. Four limiting frames 52 arranged in a cross pattern are fixed inside the sliding frame 42. When the pawl 51 engages with the adjacent limiting frame 52, it restricts the positioning rod 43 from moving outward, but does not restrict the positioning rod 43 from moving inward. A limiting plate 53 is fixed to the pawl 51. The limiting plate 53 is in compression engagement with the adjacent compression rods 5. A reset assembly is provided on the sliding frame 42.

[0037] Reference Figure 10 As shown, the reset assembly includes a fixed shaft 6, which is fixedly connected to an adjacent sliding frame 42. The fixed shaft 6 is rotatably connected to a turntable 61. A connecting rope 62 is connected between the positioning rod 43 and the adjacent turntable 61. The connecting rope 62 passes through the adjacent sliding frame 42. The fixed shaft 6 is slidably connected to a limit block 63. A spline is provided on the limit block 63. A through hole is provided on the turntable 61 for the spline on the limit block 63 to slide.

[0038] Before the operator starts the electric slide rail 1 21, the operator starts the two electric slide rails 2 4. The electric sliders 2 41 inside the two electric slide rails 2 4 drive the adjacent sliding frames 2 42 to move until the front end of the sliding frame 2 42 enters the interior of the bending and forming machine box. Then the operator stops the two electric slide rails 2 4. Then the operator moves the limit block 63, so that the limit block 63 disengages from the spline engagement with the adjacent turntable 61. Then, under the action of the spring 1 45, the positioning rod 1 43 drives the parts on it to move outward until the rolling wheel on the positioning rod 2 44 contacts the inner side of the bending and forming machine box. Under the blocking action of the inner side of the bending and forming machine box, the positioning rod 2 44 moves into the adjacent positioning rod 1 43 and compresses the spring 2 46 between them. During this process, the movement of the positioning rod 1 43 drives the adjacent turntable 61 to rotate through the adjacent connecting rope 62.

[0039] When the baffle on the second positioning rod 44 comes into contact with the adjacent pressing rod 5, the pressing rod 5 is pressed and moved by the adjacent second positioning rod 44, and presses the adjacent limiting plate 53, causing the pawl 51 to rotate and engage with the adjacent limiting frame 52, thereby stopping the first positioning rod 43 from moving.

[0040] When the operator shuts down the two electric slide rails 24, the operator starts the electric slide rail 121 and then repeats the steps of embodiment one. In this way, before the clamps 24, 31 and 12 are pressed against the outer side of the bending and forming machine box, the positioning rod 244 supports the inner side of the bending and forming machine box in advance. This prevents the bending and forming machine box from deforming inward due to the lack of internal support when the clamps 24, 31 and 12 are clamping it, which would affect the welding device 15's welding of the two sides that make up the last side of the bending and forming machine box.

[0041] After welding is completed, when the worker releases the hand that lifted the sliding frame 3, the worker rotates the turntable 61. The turntable 61 rotates and retracts the connecting rope 62. Through the four connecting ropes 62, the four adjacent positioning rods 43 move closer to each other. The four positioning rods 43 move closer to each other and compress the adjacent springs 45 respectively. When the springs 46 are fully extended, the worker moves the limiting block 63 so that the limiting block 63 re-engages with the spline of the adjacent turntable 61 and stops rotating the turntable 61. Then the worker starts the two electric slide rails 4. The electric sliders 41 in the two electric slide rails 4 drive the adjacent sliding frames 42 to move and reset. After resetting, the two electric slide rails 4 are turned off.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-functional auxiliary welding platform characterized by, It includes a mobile platform (1), a support frame (11) is detachably mounted on the mobile platform (1), a motor (12) is detachably mounted on the support frame (11), a lead screw (13) is rotatably connected to the support frame (11), one end of the lead screw (13) is fixedly connected to the output shaft of the motor (12), a connecting block (14) is slidably connected to the support frame (11), the connecting block (14) is threadedly connected to the lead screw (13), a welding device (15) is detachably mounted on the connecting block (14), and a fixing mechanism for clamping the machine box is provided on the mobile platform (1).

2. The multifunctional auxiliary welding platform as described in claim 1, characterized in that, The fixing mechanism includes a clamp (2), which is detachably mounted on the mobile platform (1). An electric slide rail (21) is detachably mounted on the upper side of the mobile platform (1). An electric slider (22) is slidably connected inside the electric slide rail (21). A fixing frame (23) is detachably mounted on the electric slider (22). A clamp (24) is slidably connected to the fixing frame (23). A tension spring (25) is provided between the clamp (24) and the fixing frame (23). A fixing component for further clamping the chassis is provided on the fixing frame (23).

3. A multifunctional auxiliary welding platform as claimed in claim 2, characterized in that, The fixing component includes a sliding frame (3), which is slidably connected to the fixing frame (23). The sliding frame (3) is slidably connected to a clamp (31), and a tension spring (32) is provided between the sliding frame (3) and the clamp (31).

4. A multifunctional auxiliary welding platform as claimed in claim 3, characterized in that, The second fixture (24) has a rectangular hole, and the rectangular hole slides into the third fixture (31).

5. The multi-functional auxiliary welding platform as claimed in claim 2, wherein, It also includes a symmetrically distributed internal support mechanism, which is set on the upper side of the mobile platform (1). The internal support mechanism is used to prevent the chassis from deforming inward. The internal support mechanism includes an electric slide rail (4), which is detachably installed on the upper side of the mobile platform (1). An electric slider (41) is slidably connected inside the electric slide rail (4). A sliding frame (42) is detachably installed on the electric slider (41). Four positioning rods (43) are slidably connected inside the sliding frame (42). Positioning rods (44) are slidably connected inside the positioning rods (43). A spring (45) is provided between the positioning rods (43) and the adjacent sliding frame (42). A spring (46) is provided between the positioning rods (43) and the adjacent positioning rods (44). An internal support positioning component is provided inside the sliding frame (42).

6. A multifunctional auxiliary welding platform as claimed in claim 5, characterized in that, The elastic coefficient of spring one (45) is greater than that of the adjacent spring two (46).

7. The multi-functional auxiliary welding platform of claim 5, wherein, The internal support positioning assembly includes four compression rods (5), which are slidably connected to adjacent positioning rods (43). The compression rods (5) are in compression engagement with adjacent positioning rods (44). A pawl (51) is rotatably connected inside the positioning rod (43). A torsion spring is provided between the pawl (51) and the adjacent positioning rod (43). Four limit frames (52) arranged in a cross pattern are fixed inside the sliding frame (42). The pawl (51) is in unidirectional limiting engagement with the adjacent limit frame (52). A limit plate (53) is fixed to the pawl (51). The limit plate (53) is in compression engagement with the adjacent compression rods (5). A reset assembly is provided on the sliding frame (42).

8. A multifunctional auxiliary welding platform as claimed in claim 7, characterized in that, The reset assembly includes a fixed shaft (6), which is fixed to an adjacent sliding frame two (42). The fixed shaft (6) is rotatably connected to a turntable (61). A connecting rope (62) is connected between the positioning rod one (43) and the adjacent turntable (61). The connecting rope (62) passes through the adjacent sliding frame two (42). The fixed shaft (6) is slidably connected to a limit block (63), which is in a limiting fit with the adjacent turntable (61).

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