A new energy vehicle frame assembly limit tooling

Abstract

The present invention discloses a limit tool for assembling a new energy vehicle frame, which relates to the technical field of automobile frame production, including a clamping mechanism, a positioning mechanism and a support plate, wherein the clamping mechanism includes a double-headed cylinder, and the double-headed cylinder is fixedly connected to the center of the ground of the support plate, and the two output ends of the double-headed cylinder are fixedly connected to a mounting seat. The present invention rotates a rotating disk, so that the rotating disk drives the positive thread screw and the reverse thread screw inside the positioning shell to rotate, and the positive thread screw and the reverse thread screw respectively drive two threaded seats to move toward each other, so that the threaded seat drives the two rotating rods above to clamp inward, so that the limit assembly is lifted upward, achieving the effect of lifting the beam, and the rotating disk is rotated in the opposite direction, and the threaded seat drives the two rotating rods above to open outward, achieving the effect of lowering the beam, thereby achieving a rapid adjustment of the height position of the welding beam and improving the efficiency of welding positioning.

Description

Technical Field

[0001] The invention relates to the technical field of automobile frame production, and in particular to a new energy automobile frame assembly limiting tool. Background Art

[0002] The frame is a framework structure that spans the front and rear axles of the car. It is the base of the car. The frame is generally assembled with two longitudinal beams and multiple cross beams. The frame plays a preliminary protective role for the interior space of the car. New energy vehicles refer to vehicles that use unconventional automotive fuels as a power source. In order to meet the power drive needs of new energy vehicles, the frame of new energy vehicles has stricter stability requirements than traditional frames. Therefore, the frame assembly process of new energy vehicles is particularly important.

[0003] In the prior art, such as the Chinese patent application CN115156896A "Follow-up assembly AGV and assembly method for new energy vehicle battery packs", includes a frame, a lifting mechanism is installed on the top of the frame, a supporting tool is installed on the top of the lifting mechanism, and a photoelectric tracking device is installed on the frame to enable the AGV to automatically follow the body-in-white hoist to maintain synchronization; a floating support mechanism is installed between the supporting tool and the lifting mechanism, and the floating support mechanism enables the supporting tool and the AGV to have a certain floating ability; the lifting mechanism is provided with a locking guide wheel matching the floating support mechanism, and when the lifting mechanism descends to a certain height, the locking guide wheel locks the floating support mechanism; the supporting tool is equipped with a support frame matching the shape of the battery pack, and the outer side of the support frame is equipped with a battery pack locating pin matching the battery pack and a plurality of sets of screw tightening mechanisms, and the supporting tool is equipped with a telescopic locating pin matching the body-in-white.

[0004] However, in the prior art, during the assembly of the crossbeams and longitudinal beams of the vehicle frame, the two longitudinal beams need to be fixed first, and then the position of the crossbeams needs to be adjusted so that the crossbeams are welded between the two longitudinal beams. However, since the surface of the automobile is a streamlined structure, the multiple crossbeams are also distributed in a popular manner, resulting in the need to frequently adjust the positions of the crossbeams when clamping and welding multiple crossbeams. In general, the clamping limit device and the limit tooling often move together with the crossbeams, resulting in the need to reposition the clamped crossbeams to be perpendicular to the longitudinal beams after the movement, which increases the number of operating steps required for positioning multiple crossbeams and affects the efficiency of assembling the vehicle frame. Summary of the invention

[0005] The purpose of the present invention is to provide a limit fixture for assembling a frame of a new energy vehicle, so as to solve the problem proposed in the above-mentioned background technology that during the assembly process of the crossbeams and longitudinal beams of the frame, the two longitudinal beams need to be fixed first, and then the position of the crossbeams needs to be adjusted so that the crossbeams are welded between the two longitudinal beams. However, since the surface of the automobile is a streamlined structure, multiple crossbeams are also distributed in a popular manner, resulting in the need to frequently adjust the positions of the crossbeams when clamping and welding multiple crossbeams. In general, the limit fixture of a clamping limit device often moves with the crossbeam, resulting in the need to reposition the clamped crossbeam to be perpendicular to the longitudinal beam after the movement, which increases the operating steps required for positioning multiple crossbeams and affects the efficiency of assembling the frame.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy vehicle frame assembly limiting tool, comprising a clamping mechanism, a positioning mechanism and a support plate, the clamping mechanism comprising a double-headed cylinder, the double-headed cylinder is fixedly connected to the center of the ground of the support plate, the two output ends of the double-headed cylinder are fixedly connected to a mounting seat, the side wall of the mounting seat is fixedly connected to a sliding plate, the two ends of the support plate are located at the position of the mounting seat and are provided with notches, and the top surface of the support plate is fixedly connected to two positioning rails;

[0007] The positioning mechanism comprises a positioning shell, and second sliders are fixedly connected at four corner positions of the outer bottom wall of the positioning shell, and the second sliders are slidably connected to the outer side wall of the positioning rail. The outer side wall of the positioning shell is provided with a driving assembly, and the inner side wall of the positioning shell is provided with a lifting assembly. The driving assembly comprises a fixed flange, and a rotating disk is rotatably connected at the center position of the inner side wall of the fixed flange;

[0008] The lifting assembly includes a positive screw and a negative screw, the positive screw and the negative screw are fixedly connected, the outer end of the positive screw is rotatably connected to the inner wall of the positioning shell, the outer end of the negative screw passes through the outer wall of the positioning shell and is fixedly connected to the rotating disk, the outer walls of the positive screw and the negative screw are both threadedly connected with threaded seats, the top ends of the threaded seats are rotatably connected with rotating rods, the two rotating rods are rotatably connected with rotating shafts at the center positions of adjacent side walls, and the top ends of the two rotating shafts are fixedly provided with limiting components.

[0009] Preferably, the two outer side walls of the threaded seat are fixedly connected with a sliding seat, and the inner bottom wall of the positioning shell is fixedly connected with two sliding rails.

[0010] Preferably, the bottom end of the sliding seat is slidably connected to the outer side wall of the slide rail, and the side wall of the rotating disk is fixedly connected with a rotating rod.

[0011] Preferably, a tensioning seat is arranged between the rotating disk and the fixed flange, and a fixing rod is threadedly connected to the outer side wall of the tensioning seat.

[0012] Preferably, a moving mechanism is arranged at the bottom end of the support plate, and the moving mechanism includes a bottom plate.

[0013] Preferably, support columns are fixedly connected between the four corner positions of the bottom surface of the support plate and the bottom plate, and universal wheels are fixedly connected to the four corner positions of the bottom surface of the bottom plate.

[0014] Preferably, a U-shaped seat is fixedly connected to one side of the sliding plate, and first sliders are fixedly connected to the two corner positions at the bottom end of the U-shaped seat.

[0015] Preferably, the bottom end of the first slider is slidably connected to the outer side wall of the positioning rail, clamping plates are fixedly connected to the top ends of the U-shaped seat, and the outer side wall of the U-shaped seat is slidably connected to the inner side wall of the notch of the support plate.

[0016] Preferably, the limiting component includes a U-shaped plate, a rotating shaft is rotatably connected between the two inner side walls of the U-shaped plate, and the U-shaped plate is rotatably connected to the outer side wall of the rotating rod through the rotating shaft.

[0017] Preferably, a first pressing roller is fixedly connected to the outer side wall of the rotating shaft, a second pressing roller is arranged above the top end of the first pressing roller, and the second pressing roller is rotatably connected between the two inner side walls of the U-shaped plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, by rotating the rotating disk, the rotating disk drives the right-handed screw rod and the left-handed screw rod inside the positioning shell to rotate. The right-handed screw rod and the left-handed screw rod respectively drive the two threaded seats to move towards each other, so that the threaded seats drive the two rotating rods above to clamp inward, thereby lifting the limiting component upward, achieving the effect of lifting the cross beam. By rotating the rotating disk in the reverse direction, the right-handed screw rod and the left-handed screw rod respectively drive the two threaded seats to move away, and the threaded seats drive the two rotating rods above to open outward, so that the limiting component sinks downward, achieving the effect of lowering the cross beam, thereby realizing the rapid adjustment of the height position of the welded cross beam, realizing the rapid positioning of the streamline welding position of the cross beam, and thus improving the efficiency of welding positioning.

[0020] 2. In the present invention, by starting the double-headed cylinder, the double-headed cylinder drives the mounting seats on both sides to stretch inwards, so that the mounting seats drive the sliding plates to slide towards the middle, and the sliding plates drive the U-shaped seats at the top to move inwards. The U-shaped seats slide on the positioning rails through the first sliders, so that the two clamping plates always move relatively parallel, and the clamping plates driven by the U-shaped seats clamp towards the middle, achieving the effect of fixing both ends of the two longitudinal beams, facilitating the perpendicularity of the cross beam to the longitudinal beam at all times, and increasing the stability during the assembly of the vehicle frame.

[0021] 3. In the present invention, by sleeving foam plates on the outer surfaces of the first extrusion roller and the second extrusion roller, the gap between the first extrusion roller and the second extrusion roller fixes the cross beam. When it is necessary to adjust the position of the cross beam on the limiting components at both ends, rotate the first extrusion roller on one side, so that the first extrusion roller drives the cross beam to roll in the horizontal direction, achieving the effect of adjusting the position of both ends of the cross beam on the limiting components, and increasing the stability during the connection of the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0023] Figure 2 is the side sectional view of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0024] Figure 3 is the bottom structural schematic diagram of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0025] Figure 4 is the structural schematic diagram of the clamping mechanism of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0026] Figure 5 is the partial structural sectional view of the clamping mechanism of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0027] Figure 6 is the structural schematic diagram of the positioning mechanism of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0028] Figure 7 is the internal structural schematic diagram of the positioning shell of a frame assembly limiting tooling for a new energy vehicle according to the present invention;

[0029] Figure 8 is Figure 6 the enlarged effect diagram of the partial structure at A in

[0030] In the figure:

[0031] 1. Moving mechanism; 11. Bottom plate; 12. Support column; 13. Universal wheel; 2. Positioning rail;

[0032] 3. Clamping mechanism; 31. Double-headed cylinder; 32. Mounting seat; 33. Sliding plate; 34. C-shaped seat; 35. Clamping plate; 36. First slider;

[0033] 4. Positioning mechanism; 41. Positioning shell; 42. Driving assembly; 421. Fixed flange; 422. Rotary disk; 423. Rotary rod; 424. Fixed rod; 425. Tightening seat;

[0034] 43. Lifting assembly; 431. Rotating rod; 432. Rotating shaft; 433. Threaded seat; 434. Sliding seat; 435. Right-handed screw rod; 436. Left-handed screw rod; 437. Slide rail;

[0035] 44. Limiting assembly; 441. C-shaped plate; 442. Rotating shaft; 443. First pressing roller; 444. Second pressing roller; 45. Second slider; 5. Support plate. Embodiment

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Refer to Figure 1-8 As shown in the figure: A positioning tool for assembling a new energy vehicle frame includes a clamping mechanism 3, a positioning mechanism 4, and a support plate 5. The clamping mechanism 3 includes a double-headed cylinder 31. The double-headed cylinder 31 is fixedly connected to the ground center position of the support plate 5. Both output ends of the double-headed cylinder 31 are fixedly connected with mounting seats 32. The side wall of the mounting seat 32 is fixedly connected with a sliding plate 33. Notches are provided at both ends of the support plate 5 at the positions of the mounting seats 32. Two positioning rails 2 are fixedly connected to the top surface of the support plate 5. During use, the outer side walls of the frame are respectively clamped between the two sliding plates 33, realizing the preliminary positioning of the frame, keeping the longitudinal beam of the frame horizontal with the clamping plate 35, and keeping the cross beam of the frame horizontal with the tops of the two rotating rods 431, realizing the preliminary positioning of the frame;

[0038] The positioning mechanism 4 includes a positioning shell 41, and second sliders 45 are fixedly connected at four corner positions of the outer bottom wall of the positioning shell 41. The second slider 45 is slidably connected to the outer wall of the positioning rail 2. The outer wall of the positioning shell 41 is provided with a driving assembly 42, and the inner wall of the positioning shell 41 is provided with a lifting assembly 43. The driving assembly 42 includes a fixed flange 421, and a rotating disk 422 is rotatably connected at the center position of the inner wall of the fixed flange 421. By arranging the positioning mechanism 4 between the two clamping plates 35, the positioning mechanism 4 is used to limit the crossbeam that needs to be positioned and welded, so that the crossbeam can be positioned at the position on the frame that needs to be welded. By arranging the second slider 45 at the bottom end of the positioning shell 41, the effect of moving the positioning mechanism 4 on the positioning rail 2 is achieved, so that the positioning mechanism 4 can move the crossbeam to different positions of the longitudinal beam.

[0039] The lifting assembly 43 includes a positive thread screw 435 and a negative thread screw 436, the positive thread screw 435 and the negative thread screw 436 are fixedly connected, the outer end of the positive thread screw 435 is rotatably connected to the inner wall of the positioning shell 41, the outer end of the negative thread screw 436 penetrates the outer wall of the positioning shell 41 and is fixedly connected to the rotating disk 422, the outer walls of the positive thread screw 435 and the negative thread screw 436 are both threadedly connected with a threaded seat 433, the top of the threaded seat 433 is rotatably connected with a rotating rod 431, the two rotating rods 431 are rotatably connected with a rotating shaft 432 at the center position of the adjacent side walls, and the tops of the two rotating shafts 432 are fixedly provided with a limiting assembly 44. When it is necessary to adjust the height of the crossbeam welded on the longitudinal beam, the rotating disk 422 is rotated to allow the rotating disk 422 to drive the inside of the positioning shell 41 The positive thread screw 435 and the reverse thread screw 436 rotate. The positive thread screw 435 and the reverse thread screw 436 are screws with reverse threads at both ends. When the positive thread screw 435 and the reverse thread screw 436 rotate in one direction, the positive thread screw 435 and the reverse thread screw 436 respectively drive the two threaded seats 433 to move toward or away from each other, so that the threaded seat 433 drives the two upper rotating rods 431 to clamp inward or open outward, so that the two rotating rods 431 rotate in a scissor-like manner through the middle rotating shaft 432. When the two rotating rods 431 open to each other, the limit assembly 44 sinks downward to achieve the effect of lowering the beam. When the two rotating rods 431 approach each other, the limit assembly 44 lifts upward to achieve the effect of lifting the beam, thereby achieving a rapid adjustment of the position of the welding beam.

[0040] according to Figure 6 and Figure 8As shown, sliding seats 434 are fixedly connected to both outer side walls of the threaded seat 433, and two slide rails 437 are fixedly connected to the inner bottom wall of the positioning shell 41. The bottom end of the sliding seat 434 is slidably connected to the outer side wall of the slide rail 437, and a rotating rod 423 is fixedly connected to the side wall of the rotating disk 422. A tightening seat 425 is arranged between the rotating disk 422 and the fixed flange 421, and a fixing rod 424 is threadedly connected to the outer side wall of the tightening seat 425. When it is necessary to rotate the right-handed screw rod 435 and the left-handed screw rod 436 inside the positioning shell 41, it can be achieved by adjusting the rotating disk 422 on the outer side of the positioning shell 41. And when it is necessary to fix the right-handed screw rod 435 and the left-handed screw rod 436 so that they no longer rotate, in order to make the position of the cross beam fixed on the limiting component 44 stable and facilitate welding, the fixing rod 424 is folded by ninety degrees, so that the bottom end of the fixing rod 424 moves downward. The tightening seat 425 is a circular ring structure with an opening on one side, so that the fixing rod 424 and the opening of the tightening seat 425 are reduced, thereby reducing the opening at the bottom end of the tightening seat 425 and reducing the inner diameter of the tightening seat 425, so as to increase the friction force of the tightening seat 425 on the left-handed screw rod 436 and make the rotating disk 422 no longer drive the left-handed screw rod 436 to rotate.

[0041] According to Figure 2 and Figure 4 As shown, a moving mechanism 1 is arranged at the bottom end of the support plate 5. The moving mechanism 1 includes a bottom plate 11. Support columns 12 are fixedly connected between the bottom surface of the support plate 5 at the four corner positions and the bottom plate 11, and universal wheels 13 are fixedly connected at the four corner positions of the bottom surface of the bottom plate 11. A U-shaped seat 34 is fixedly connected to one side of the sliding plate 33, and first sliders 36 are fixedly connected to the two corner positions at the bottom end of the U-shaped seat 34. When it is necessary to fix the two ends of the vehicle frame, the two ends of the two longitudinal beams are respectively clamped at the two ends of the clamping plate 35, and the double-headed cylinder 31 at the bottom end of the support plate 5 is started, so that the double-headed cylinder 31 drives the mounting seats 32 on both sides to stretch inwards, thereby making the mounting seats 32 drive the sliding plate 33 to slide towards the middle, so that the sliding plate 33 drives the U-shaped seat 34 at the top to move inwards. The U-shaped seat 34 slides on the positioning rail 2 through the first slider 36, so that the two clamping plates 35 always move relatively parallel, and the U-shaped seat 34 drives the clamping plate 35 to clamp towards the middle, realizing the fixation of the two ends of the two longitudinal beams.

[0042] According to Figure 4 and Figure 6As shown, the bottom end of the first slider 36 is slidably connected to the outer side wall of the positioning rail 2. Clamping plates 35 are fixedly connected to the top ends of the U-shaped seats 34. The outer side walls of the U-shaped seats 34 are slidably connected to the inner side walls of the notches of the support plates 5. The limiting component 44 includes a U-shaped plate 441. A rotating shaft 442 is rotatably connected between the two inner side walls of the U-shaped plate 441. The U-shaped plate 441 is rotatably connected to the outer side wall of the rotating rod 431 through the rotating shaft 442. A first pressing roller 443 is fixedly connected to the outer side wall of the rotating shaft 442. A second pressing roller 444 is arranged above the top end of the first pressing roller 443. The second pressing roller 444 is rotatably connected between the two inner side walls of the U-shaped plate 441. When the cross beam is placed between the first pressing roller 443 and the second pressing roller 444 on both sides, foam plates are sleeved on the outer surfaces of the first pressing roller 443 and the second pressing roller 444, so that the gap between the first pressing roller 443 and the second pressing roller 444 fixes the cross beam. When it is necessary to adjust the position of the cross beam on the limiting components 44 at both ends, rotate the first pressing roller 443 on one side, so that the first pressing roller 443 drives the cross beam to roll in the horizontal direction, and the distance between the two ends of the cross beam on the limiting components 44 is adjusted, increasing the stability when connecting the cross beam.

[0043] Usage method and working principle of this device: When in use, move the limiting tooling to the frame assembly position through the moving universal wheels 13, start the double-headed cylinder 31, so that the double-headed cylinder 31 drives the U-shaped seats 34 on both sides to move outward on the positioning rail 2, thereby opening the two clamping plates 35. Place the two ends of the longitudinal beam of the frame between the clamping plates 35, and start the double-headed cylinder 31 to drive the clamping plates 35 to clamp inward, thereby realizing the preliminary fixation of the frame.

[0044] Pass the cross beam to be welded through one first pressing roller 443, and by rotating the first pressing roller 443, lap one end of the cross beam on the first pressing roller 443 on the other side, thereby realizing the fixing effect on the cross beam.

[0045] Rotate the rotating disk 422, so that the rotating disk 422 drives the right-handed screw rod 435 and the left-handed screw rod 436 inside the positioning shell 41 to rotate. The right-handed screw rod 435 and the left-handed screw rod 436 respectively drive the two threaded seats 433 to move towards each other, so that the threaded seats 433 drive the two rotating rods 431 above to clamp inward, and the limiting component 44 is lifted upward, realizing the effect of lifting the cross beam.

[0046] When it is necessary to lower the welding position of the cross beam, rotate the rotating disk 422 in the reverse direction, so that the right-handed screw rod 435 and the left-handed screw rod 436 respectively drive the two threaded seats 433 to move away from each other, so that the threaded seats 433 drive the two rotating rods 431 above to clamp inward or open outward, and the limiting component 44 sinks downward, realizing the effect of lowering the welding position of the cross beam.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A limit fixture for assembling a frame of a new energy vehicle, comprising a clamping mechanism (3), a positioning mechanism (4) and a support plate (5), characterized in that: The clamping mechanism (3) includes a double-headed cylinder (31), the double-headed cylinder (31) is fixedly connected to the center position of the bottom surface of the support plate (5), both output ends of the double-headed cylinder (31) are fixedly connected with mounting seats (32), the side wall of the mounting seat (32) is fixedly connected with a sliding plate (33), one side of the sliding plate (33) is fixedly connected with a U-shaped seat (34), both corner positions at the bottom end of the U-shaped seat (34) are fixedly connected with first sliders (36), the top ends of the U-shaped seat (34) are fixedly connected with clamping plates (35), the outer side wall of the U-shaped seat (34) is slidably connected with the inner side wall of the notch of the support plate (5), notches are opened at both ends of the support plate (5) at the positions of the mounting seats (32), two positioning rails (2) are fixedly connected to the top surface of the support plate (5), and the bottom end of the first slider (36) is slidably connected with the outer side wall of the positioning rail (2); The positioning mechanism (4) includes a positioning shell (41), second sliders (45) are fixedly connected to all four corner positions of the outer bottom wall of the positioning shell (41), the second sliders (45) are slidably connected with the outer side wall of the positioning rail (2), a driving assembly (42) is arranged on the outer side wall of the positioning shell (41), a lifting assembly (43) is arranged on the inner side wall of the positioning shell (41), the driving assembly (42) includes a fixed flange (421), and a rotating disk (422) is rotatably connected to the center position of the inner side wall of the fixed flange (421); The lifting assembly (43) includes a right-handed screw rod (435) and a left-handed screw rod (436), the right-handed screw rod (435) is fixedly connected with the left-handed screw rod (436), the outer end of the right-handed screw rod (435) is rotatably connected with the inner side wall of the positioning shell (41), the outer end of the left-handed screw rod (436) penetrates through the outer side wall of the positioning shell (41) and is fixedly connected with the rotating disk (422), screw seats (433) are threadedly connected to the outer side walls of both the right-handed screw rod (435) and the left-handed screw rod (436), the top ends of the screw seats (433) are rotatably connected with rotating rods (431), a rotating shaft (432) is rotatably connected to the center position of the adjacent side walls of the two rotating rods (431), and limiting assemblies (44) are fixedly arranged at the top ends of the two rotating shafts (432).

2. A new energy vehicle frame assembly limiting tool according to claim 1, characterized in that: Sliding seats (434) are fixedly connected to both outer side walls of the screw seat (433), and two slide rails (437) are fixedly connected to the inner bottom wall of the positioning shell (41).

3. A new energy vehicle frame assembly limiting tool according to claim 2, characterized in that: The bottom end of the sliding seat (434) is slidably connected with the outer side wall of the slide rail (437), and a rotating rod (423) is fixedly connected to the side wall of the rotating disk (422).

4. The new energy vehicle frame assembly limiting tool according to claim 1 is characterized in that: A tightening seat (425) is arranged between the rotating disk (422) and the fixed flange (421), and a fixing rod (424) is threadedly connected to the outer side wall of the tightening seat (425).

5. The new energy vehicle frame assembly limiting tool according to claim 1 is characterized in that: A moving mechanism (1) is provided at the bottom end of the support plate (5), and the moving mechanism (1) includes a bottom plate (11).

6. A new energy vehicle frame assembly limiting tool according to claim 5, characterized in that: Support columns (12) are fixedly connected between the four corner positions of the bottom surface of the support plate (5) and the bottom plate (11), and universal wheels (13) are fixedly connected to the four corner positions of the bottom surface of the bottom plate (11).

7. The new energy vehicle frame assembly limiting tooling according to claim 1 is characterized in that: The limiting component (44) includes a U-shaped plate (441), a rotating shaft (442) is rotatably connected between the two inner side walls of the U-shaped plate (441), and the U-shaped plate (441) is rotatably connected to the outer side wall of the rotating rod (431) through the rotating shaft (442).

8. The new energy vehicle frame assembly limiting tool according to claim 7 is characterized in that: A first pressing roller (443) is fixedly connected to the outer side wall of the rotating shaft (442), a second pressing roller (444) is arranged above the top end of the first pressing roller (443), and the second pressing roller (444) is rotatably connected between the two inner side walls of the U-shaped plate (441).

Images