Off-road scissor aerial work platform chassis riveting and welding tooling

Abstract

A riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform includes a base and riveting and welding positioning components. The riveting and welding positioning components include two outrigger connecting plate positioning assemblies positioned opposite each other at both ends of the base along the length of the main square tube, and a front plate positioning assembly, a front panel positioning assembly, a floating cylinder support positioning assembly, a front axle positioning assembly, a square tube positioning assembly, a protective cover mounting beam positioning assembly, and a rear axle positioning assembly arranged sequentially between the two outrigger connecting plate positioning assemblies. The outrigger connecting plate positioning assembly includes a linear guide rail extending along the length of the main square tube connected to the surface of the base and an outrigger connecting plate positioning seat slidably connected to the linear guide rail. The middle part of the base is provided with corresponding switching magnetic seats relative to the outrigger connecting plate positioning seats at both ends, so as to control the movement and positioning of the outrigger connecting plate positioning seats through the switching magnetic seats. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform of the present invention has the advantages of ensuring processing quality and high riveting efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of scissor lift aerial work platforms, specifically relating to a riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform. Background Technology

[0002] Aerial work platforms, from bottom to top, mainly consist of a base frame, scissor lift, and working platform. The hydraulic power source for the aerial work platform, the hydraulic power source for scissor lift operation, and the entire system's electrical control system are all installed within the base frame. Therefore, the processing quality of the base frame directly affects the stability and safety of the aerial work platform. Riveting and welding fixtures are an important means to ensure the processing quality of the base frame components and improve processing efficiency. Currently, there are no special fixtures for riveting and welding the base frame of aerial work platforms. Therefore, various clamping devices are often used for fixing during riveting and welding, resulting in unstable fixing methods. This leads to an unstable installation position of the base frame of tracked scissor lift aerial work platforms, making automated riveting and welding methods impossible. Riveting and welding can only be done manually, resulting in low efficiency and inconsistent welding quality, and the processing quality of the base frame components cannot be guaranteed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform that ensures processing quality and has high riveting and welding efficiency.

[0004] The present invention provides a riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform. The riveted underframe includes four outrigger connecting plates, a front plate, a front panel, two hinge plates, two floating cylinder supports, a front axle, two main square tubes, two protective cover mounting beams, and a rear axle. The riveting and welding fixture includes a base and riveting and welding positioning components disposed on the surface of the base. The riveting and welding positioning components include two outrigger connecting plate positioning assemblies disposed opposite to each other at both ends of the base along the length of the main square tubes, and components sequentially arranged on the two outriggers. The connecting plate positioning assembly includes a front plate positioning assembly, a front panel positioning assembly, a floating cylinder support positioning assembly, a front axle positioning assembly, a square tube positioning assembly, a protective cover mounting beam positioning assembly, and a rear axle positioning assembly. The outrigger connecting plate positioning assembly includes a linear guide rail extending along the length of the main square tube and a outrigger connecting plate positioning seat slidably connected to the linear guide rail. The middle part of the base is provided with corresponding switching magnetic seats relative to the outrigger connecting plate positioning seats at both ends, so as to control the movement and positioning of the outrigger connecting plate positioning seats through the switching magnetic seats.

[0005] In one embodiment, the support leg connecting plate positioning seat includes a positioning base plate with two sliders at the bottom, two positioning side plates respectively vertically connected to both ends of the positioning base plate, and a fixed square tube connected between the two positioning side plates. The upper end of the positioning side plate is provided with a locking pin hole for positioning the support leg connecting plate. The two ends of the base are respectively provided with two linear guide rails corresponding to the two sliders at the bottom of the positioning base plate.

[0006] In one embodiment, four switching magnetic seats are provided on the base corresponding to the four linear guide rails, and the switching magnetic seats are mounted on the base via a switching magnetic seat support frame.

[0007] In one embodiment, the front panel positioning assembly includes a front panel backrest for the front panel to abut against and a front panel support block for supporting the bottom of the front panel, wherein the front panel backrest is closer to the leg connecting plate positioning seat at its end than the front panel support block.

[0008] In one embodiment, the front panel positioning assembly includes a front panel support plate for supporting the front panel and a hinge plate positioning seat for positioning the hinge plate. The upper edge of the front panel support plate is parallel to the surface of the base. The hinge plate positioning seat includes a body fixedly connected to the base and two positioning portions extending perpendicularly from both ends of the body to the surface of the base. The two positioning portions are provided with coaxial core holes for positioning the two hinge plates at the same height.

[0009] In one embodiment, the floating cylinder support positioning assembly includes two floating cylinder support positioning seats corresponding to the two floating cylinder supports, and the floating cylinder support positioning seats are provided with positioning holes for positioning the height of the floating cylinder supports.

[0010] In one embodiment, the front axle positioning assembly includes a front axle positioning support perpendicular to the base and a front axle positioning bushing disposed on the top of the front axle positioning support. The front axle positioning bushing is used to coaxially engage with the front axle mounting hole on the front axle to position the front axle.

[0011] In one embodiment, the square tube positioning assembly includes four square tube positioning plates arranged in pairs on both sides of the base, corresponding to the two main square tubes. The top of the square tube positioning plate is recessed downward to form a groove that matches the outer contour of the main square tube, so as to limit the main square tube within the groove for positioning.

[0012] In one embodiment, the protective cover mounting beam positioning assembly includes four protective cover mounting beam positioning seats, which are arranged in pairs on both sides of the base, corresponding to the two protective cover mounting beams. Each protective cover mounting beam positioning seat includes a column perpendicular to the surface of the base and a horizontal panel connected to the top of the column for supporting the protective cover mounting beam. The horizontal panels of the four protective cover mounting beam positioning seats are located on the same horizontal plane.

[0013] In one embodiment, the rear axle positioning assembly includes two rear axle positioning mandrel supports disposed opposite to each other on both sides of the base along the length of the rear axle, and a rear axle equal-height positioning mandrel connected to the upper end of the rear axle positioning mandrel supports. The rear axle equal-height positioning mandrel is used to cooperate with the mounting holes at both ends of the rear axle to position the mounting holes at both ends of the rear axle at the same height.

[0014] The beneficial effects of this invention are that the riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform is designed with positioning components for each part on the underframe. During riveting and welding, it is only necessary to assemble the corresponding parts with the corresponding positioning components to accurately position each part of the underframe in the required position. This allows for automated riveting and welding, avoiding the problems of unstable fixing methods, low riveting efficiency, inconsistent riveting results, and unreliable processing quality of underframe structural components caused by manual riveting and welding. The riveting and welding results are uniform, the processing quality is guaranteed, and the riveting and welding efficiency is high.

[0015] Other advantages of the present invention will be described in detail in the following detailed description section with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, 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 improper limitation of the invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform according to the present invention;

[0019] Figure 2 for Figure 1 The diagram shows a top view of the riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform.

[0020] Figure 3 for Figure 1 The diagram shows a partial structural design of the riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform.

[0021] Figure 4 for Figure 1The diagram shows the outrigger connecting plate positioning seat structure of the riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform.

[0022] Figure 5 For the underframe of the off-road scissor lift aerial work platform Figure 1 A schematic diagram of the riveting and welding fixture shown.

[0023] Figure 6 For the underframe of the off-road scissor lift aerial work platform Figure 1 The diagram shows another angle of the riveting and welding fixture being used for riveting and welding.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 101. Linear guide rail; 103. Slider; 2. Leg connecting plate positioning seat; 21. Locking pin hole; 23. Leg connecting plate; 25. Positioning base plate; 26. Positioning side plate; 27. Fixed square tube; 28. Slider mounting hole; 3. Front plate backrest; 37. Front plate backrest mounting pad; 4. Front plate support block; 43. Front plate; 5. Front panel support upright plate; 53. Front panel; 6. Hinge plate positioning seat; 63. Hinge plate; 67. Hinge plate positioning seat mounting pad; 7. Floating cylinder support. Positioning base, 73 floating cylinder support, 77 floating cylinder support positioning base mounting pad, 8 front axle positioning support, 81 front axle positioning bushing, 83 front axle, 85 front axle mounting hole, 9 square tube positioning upright plate, 93 main square tube, 11 protective cover mounting beam positioning base, 113 protective cover mounting beam, 13 switch magnetic base support frame, 131 switch magnetic base, 15 rear axle positioning mandrel support base, 151 rear axle equal height positioning mandrel, 153 rear axle, 17 off-road scissor lift aerial work platform underframe. Detailed Implementation

[0025] To further explain the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0026] like Figure 1-6 As shown, this embodiment provides a riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform. The riveted underframe of the off-road scissor lift aerial work platform includes four outrigger connecting plates 23, a front plate 43, a front panel 53, two hinge plates 63, two floating cylinder supports 73, a front axle 83, two main square tubes 93, two protective cover mounting beams 113, and a rear axle 153. It includes a base 1 and riveting and welding positioning components disposed on the surface of the base 1. The riveting and welding positioning components include two outrigger connecting plate positioning assemblies disposed opposite to each other at both ends of the base 1 along the length direction of the main square tubes 93, and a front plate positioning assembly, a front panel positioning assembly, a floating cylinder support positioning assembly, a front axle positioning assembly, a square tube positioning assembly, a protective cover mounting beam positioning assembly, and a rear axle positioning assembly arranged sequentially between the two outrigger connecting plate positioning assemblies.

[0027] In this embodiment, the outrigger connecting plate positioning assembly includes a linear guide rail 101 extending along the length of the main square tube 93 and connected to the surface of the base 1, and an outrigger connecting plate positioning seat 2 slidably connected to the linear guide rail 101. The two outrigger connecting plate positioning seats 2 are symmetrically arranged, as shown below. Figure 1 and Figure 4 As shown, the support leg connecting plate positioning seat 2 includes a positioning base plate 25 with two sliders 103 connected to its bottom, two positioning side plates 26 vertically connected to both ends of the positioning base plate 25, and a fixed square tube 27 connected between the two positioning side plates 26. The upper end of the positioning side plate 26 has a locking pin hole 21 for positioning the support leg connecting plate 23. The sliders 103 are fixedly connected to the positioning base plate 25 through slider mounting holes 28. At both ends of the base 1, corresponding to the two sliders 103 at the bottom of the positioning base plate 25, two linear guide rails 101 are respectively provided, allowing the sliders 103 to slide freely within the linear guide rails 101. The base 1 has corresponding switching magnetic seats 131 at each end of the support leg connecting plate positioning seat 2. Specifically, four switching magnetic seats 131 are provided corresponding to the four linear guide rails 101. The switching magnetic seats 131 are mounted on the base 1 via a switching magnetic seat support frame 13. Four magnetic switch seats 131 are positioned on both sides of the middle position of the tooling, in pairs. Turning on the switch will position and clamp the outrigger connecting plate positioning seat 2. In use, place the outrigger connecting plate positioning seat 2 in the linear guide rail 101. First, fix the outrigger connecting plate 23 to the locking pin hole 21 of the outrigger connecting plate positioning seat 2 with a locking pin. Then, turn on the magnetic switch seats 131 to clamp the outrigger connecting plate positioning seat 2, so that the outrigger connecting plate 23 reaches the positioning position. When the riveting is completed, simply turn off the magnetic switch seats to slide the outrigger connecting plate positioning seats 2 towards both ends of the workpiece, so that they no longer contact the two ends of the off-road scissor lift aerial work platform base frame 17, ensuring the demolding of the workpiece after the riveting operation is completed.

[0028] In this embodiment, the front panel positioning assembly includes a door-shaped front panel backrest 3 for the front panel 43 to abut against and a front panel support block 4 for supporting the bottom of the front panel 43. The front panel backrest 3 is closer to the support leg connecting plate positioning seat 2 at its end than the front panel support block 4. The front panel backrest 3 is mounted on a front panel backrest mounting pad 37, which is fixedly connected to the base 1.

[0029] In this embodiment, the front panel positioning assembly includes a front panel support plate 5 for supporting the front panel 53 and a hinge plate positioning seat 6 for positioning the hinge plate 63. The upper edge of the front panel support plate 5 is parallel to the surface of the base 1. The hinge plate positioning seat mounting pad 67 is fixedly connected to the base 1. The hinge plate positioning seat 6 includes a body fixedly connected to the hinge plate positioning seat mounting pad 67 and two positioning parts extending perpendicularly from both ends of the body to the surface of the base 1. The two positioning parts are provided with coaxial core holes for positioning the two hinge plates 63 at the same height. The hinge plates 63 on both sides are respectively inserted into the coaxial core holes on the corresponding positioning parts by inserting a mandrel to ensure that the holes of the hinge plates 63 on both sides are concentric.

[0030] In this embodiment, the floating cylinder support positioning assembly includes two floating cylinder support positioning seats 7 corresponding to two floating cylinder supports 73 located on both sides. The floating cylinder support positioning seats 7 have positioning holes for positioning the height of the floating cylinder supports 73. Positioning of the floating cylinder is achieved by passing a mandrel through the positioning holes on the floating cylinder support positioning seats 7 and the holes on the floating cylinder supports 73. The floating cylinder support positioning seats 7 are mounted on a floating cylinder support positioning seat mounting plate 77, which is fixedly connected to the base 1.

[0031] In this embodiment, the front axle positioning assembly includes a front axle positioning support 8 perpendicular to the base 1 and a front axle positioning bushing 81 located on top of the front axle positioning support 8. The front axle positioning bushing 81 is used to coaxially engage with the front axle mounting hole 85 on the front axle 83 to position the front axle 83. By passing a mandrel through the front axle mounting hole 85 on the front axle 83 and the front axle positioning bushing 81 on top of the front axle positioning support 8, the positioning of the front axle mounting hole 85 is completed, ensuring the height difference between it and the mounting holes at both ends of the rear axle 153.

[0032] In this embodiment, the square tube positioning assembly includes four square tube positioning plates 9, which are arranged in pairs on both sides of the base 1, corresponding to the two main square tubes 93. The top of the square tube positioning plate 9 is recessed downward to form a groove that matches the outer contour of the main square tube 93. The main square tube 93 can be positioned by placing it into the groove.

[0033] In this embodiment, the protective cover mounting beam positioning assembly includes four protective cover mounting beam positioning seats 11, which are respectively arranged in pairs on both sides of the base 1, corresponding to the two protective cover mounting beams 113. Each protective cover mounting beam positioning seat 11 includes a column perpendicular to the surface of the base 1 and a horizontal panel connected to the top of the column for supporting the protective cover mounting beams 113. The horizontal panels of the four protective cover mounting beam positioning seats 11 are located on the same horizontal plane.

[0034] In this embodiment, the rear axle positioning assembly includes two rear axle positioning mandrel support seats 15 disposed opposite to each other on both sides of the base 1 along the length direction of the rear axle 153, and a rear axle equal-height positioning mandrel 151 connected to the upper end of the rear axle positioning mandrel support seats 15. The rear axle equal-height positioning mandrel 151 is used to cooperate with the mounting holes at both ends of the rear axle 153 to position the mounting holes at both ends of the rear axle 153 at the same height. One side of the rear axle equal-height positioning mandrel 151 is inserted into the equal-height bushing on the rear axle positioning mandrel support seat 15, and the other side is inserted into the mounting holes at both ends of the rear axle 153 to ensure that the mounting holes on both sides of the rear axle 153 are at the same height.

[0035] The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform of the present invention is designed with positioning components for each part on the underframe of the off-road scissor lift aerial work platform. It can accurately position each part of the underframe in the required position, thereby enabling the use of automated riveting and welding methods. This avoids the problems of unstable fixing methods, low riveting efficiency, inconsistent riveting results, and unreliable processing quality of underframe structural parts caused by manual riveting and welding. The riveting and welding effect is uniform, the processing quality is guaranteed, and the riveting and welding efficiency is high.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0037] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A riveting and welding fixture for the underframe of an off-road scissor lift aerial work platform, wherein the riveted underframe includes four outrigger connecting plates (23), a front plate (43), a front panel (53), two hinge plates (63), two floating cylinder supports (73), a front axle (83), two main square tubes (93), two protective cover mounting beams (113), and a rear axle (153), characterized in that, The system includes a base (1) and a welding positioning component disposed on the surface of the base (1). The welding positioning component includes two support leg connecting plate positioning assemblies disposed opposite to each other at both ends of the base (1) along the length direction of the main square tube (93), and a front plate positioning assembly, a front panel positioning assembly, a floating cylinder support positioning assembly, a front axle positioning assembly, a square tube positioning assembly, a protective cover mounting beam positioning assembly, and a rear axle positioning assembly arranged sequentially between the two support leg connecting plate positioning assemblies. The support leg connecting plate positioning assembly includes a linear guide rail (101) extending along the length direction of the main square tube (93) connected to the surface of the base (1) and a support leg connecting plate positioning seat (2) slidably connected to the linear guide rail (101). The middle part of the base (1) is provided with corresponding switching magnetic seats (131) relative to the support leg connecting plate positioning seats (2) at both ends, so as to control the movement and positioning of the support leg connecting plate positioning seats (2) through the switching magnetic seats (131).

2. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in claim 1, characterized in that, The support leg connecting plate positioning seat (2) includes a positioning base plate (25) with two sliders (103) at the bottom, two positioning side plates (26) vertically connected to both ends of the positioning base plate (25) respectively, and a fixed square tube (27) connected between the two positioning side plates (26). The upper end of the positioning side plate (26) is provided with a locking pin hole (21) for positioning the support leg connecting plate (23). The two ends of the base (1) are respectively provided with two linear guide rails (101) corresponding to the two sliders (103) at the bottom of the positioning base plate (25).

3. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in claim 2, characterized in that, The base (1) is provided with four switching magnetic seats (131) corresponding to the four linear guide rails (101), and the switching magnetic seats (131) are installed above the base (1) through the switching magnetic seat support frame (13).

4. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The front panel positioning assembly includes a front panel backrest (3) for the front panel (43) to abut against and a front panel support block (4) for supporting the bottom of the front panel (43). The front panel backrest (3) is closer to the leg connecting plate positioning seat (2) at its end than the front panel support block (4).

5. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The front panel positioning assembly includes a front panel support plate (5) for supporting the front panel (53) and a hinge plate positioning seat (6) for positioning the hinge plate (63). The upper edge of the front panel support plate (5) is parallel to the surface of the base (1). The hinge plate positioning seat (6) includes a body fixedly connected to the base (1) and two positioning portions extending perpendicularly from both ends of the body to the surface of the base (1). The two positioning portions are provided with coaxial core holes for positioning the two hinge plates (63) at the same height.

6. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The floating cylinder support positioning assembly includes two floating cylinder support positioning seats (7) corresponding to the two floating cylinder supports (73), and the floating cylinder support positioning seats (7) are provided with positioning holes for positioning the height of the floating cylinder supports (73).

7. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The front axle positioning assembly includes a front axle positioning support (8) perpendicular to the base (1) and a front axle positioning bushing (81) on the top of the front axle positioning support (8). The front axle positioning bushing (81) is used to coaxially cooperate with the front axle mounting hole (85) on the front axle (83) to position the front axle (83).

8. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The square tube positioning assembly includes four square tube positioning plates (9) respectively arranged in pairs on both sides of the base (1) corresponding to the two main square tubes (93). The top of the square tube positioning plate (9) is recessed downward to form a groove that matches the outer contour of the main square tube (93) so as to limit the main square tube (93) in the groove for positioning.

9. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The protective cover mounting beam positioning assembly includes four protective cover mounting beam positioning seats (11) arranged in pairs on both sides of the base (1) corresponding to the two protective cover mounting beams (113). Each protective cover mounting beam positioning seat (11) includes a column perpendicular to the surface of the base (1) and a horizontal panel connected to the top of the column for supporting the protective cover mounting beams (113). The horizontal panels of the four protective cover mounting beam positioning seats (11) are located on the same horizontal plane.

10. The riveting and welding fixture for the underframe of the off-road scissor lift aerial work platform as described in any one of claims 1-3, characterized in that, The rear axle positioning assembly includes two rear axle positioning mandrel support seats (15) disposed opposite to each other on both sides of the base (1) along the length direction of the rear axle (153) and a rear axle equal height positioning mandrel (151) connected to the upper end of the rear axle positioning mandrel support seats (15). The rear axle equal height positioning mandrel (151) is used to cooperate with the mounting holes at both ends of the rear axle (153) to position the mounting holes at both ends of the rear axle (153) at the same height.

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