Vehicle frame supporting tool

Abstract

The utility model provides a vehicle frame supporting tool. The continuity and the efficiency of a production line are improved by improving the structure of the supporting tool. The vehicle frame supporting tool comprises a base and a supporting assembly, and the supporting assembly is used for supporting a longitudinal beam of a vehicle frame. The supporting assembly is provided with a first arm set, a second arm set and a turnover device, the first arm set and the second arm set are both connected to the base through the turnover device, and under the action of the turnover device, one of the first arm set and the second arm set can be turned over to be perpendicular to the base; and the size of one of the first arm group and the second arm group in the height direction is larger than that of the other one of the first arm group and the second arm group. In this way, the appropriate arm sets can be rapidly switched according to different stations of the vehicle frame so as to support the vehicle frame, and therefore the continuity and efficiency of a production line are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-load-bearing vehicle body frame assembly, in particular to a vehicle frame supporting tool. Background Art

[0002] In modern automotive manufacturing and heavy equipment assembly, the introduction of automated production lines has significantly improved production efficiency and assembly precision. Automated guided vehicles (AGVs), a key tool for automated material handling, are widely used in various production scenarios, particularly in the assembly and transfer of large components such as vehicle frames.

[0003] Existing technical solutions require manual confirmation and replacement of support fixtures when an unloaded AGV receives a frame, and when the frame is flipped from the flipper to the AGV fixture. This not only increases labor costs but also easily leads to assembly errors or safety incidents due to human error. Manual replacement of support fixtures is time-consuming and requires waiting for the flipper to complete the flipping action, which seriously affects the continuity and efficiency of the production line.

[0004] Therefore, there is an urgent need for a technical solution for a frame support tooling to overcome the above-mentioned disadvantages. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle frame supporting tooling, which improves the continuity and efficiency of the production line by improving the structure of the supporting tooling.

[0006] To achieve the above-mentioned purpose, the present invention provides a vehicle frame support tool, comprising a base and a support assembly, wherein the support assembly is used to support the longitudinal beam of the vehicle frame;

[0007] The support assembly has a first arm group, a second arm group and a flipping device. The first arm group and the second arm group are both connected to the base through the flipping device. Under the action of the flipping device, one of the first arm group and the second arm group can be flipped to be perpendicular to the base; the height dimension of one of the first arm group and the second arm group is larger than the other.

[0008] In this way, when the frame is in the second workstation, the flipping device drives the first arm group to flip along the first direction to be perpendicular to the base to support the frame; when the frame is in the first workstation, the flipping device drives the second arm group to flip along the second direction to be perpendicular to the base to support the frame; thereby, the appropriate arm group can be quickly switched for different workstations of the frame to support the frame, thereby improving the continuity and efficiency of the production line.

[0009] Optionally, a driving unit is further included to drive the arm groups to flip; when one of the first arm group and the second arm group flips to be perpendicular to the base, the other arm group becomes parallel to the base and presses against the upper surface of the base in the height direction. In this way, the base forms a stop for one arm group, ensuring the precise perpendicularity between the other arm group and the base.

[0010] Optionally, the first arm group and the second arm group each include two arms, and the two arms in the same arm group are arranged in the width direction of the base;

[0011] Each arm has a vertical plate at its top end, perpendicular to the top end of the arm and located on the side of the two arms that are farther from each other in the arrangement direction of the arms. Thus, the vertical plate contacts the outer side wall of the corresponding side of the longitudinal beam in the width direction of the base, thereby forming a stop for the frame in the width direction.

[0012] Optionally, the vertical plate includes a guide section and a vertical section in the height direction, the vertical section is connected to the top end of the arm, the guide section is connected to the upper side of the vertical section, and the distance between the guide sections of the two arms decreases from top to bottom in the height direction. In this way, when the frame is lowered, the two longitudinal beams, after contacting the guide sections, will be tightly attached to the vertical sections under the action of the guide sections, thereby positioning the base in the width direction.

[0013] Optionally, it further comprises a positioning arm, wherein the positioning arm is arranged perpendicular to the base;

[0014] A U-shaped frame is provided at the top of the positioning arm. The U-shaped frame comprises two vertically arranged baffles and a connecting plate connected between the two baffles. The connecting plate is connected to the top of the positioning arm. The two baffles are arranged opposite each other along the length of the base. In this way, the U-shaped frame can form a support with the crossbeam of the frame, thereby positioning the frame along its length.

[0015] Optionally, the U-shaped frame has a constant diameter section and a flared section, wherein the flared section is located at the opening of the top of the U-shaped frame. The flared section serves as a guide, and as the frame is lowered, the front-to-back position of the frame can be gradually adjusted to match the frame with the U-shaped frame, thereby completing the longitudinal positioning of the frame.

[0016] Optionally, a speed reducer support seat capable of sliding in the width direction is further included. The speed reducer support seat comprises a support plate and a guide plate. The support plate extends in a vertical direction, with its bottom end directly or indirectly slidably connected to the base; the top end is fixedly connected to the guide plate, which is V-shaped, with the V-shaped fold line extending along the length of the vehicle. In this manner, when the vehicle frame is assembled and flipped to the second workstation for lowering, the rear axle housing gradually contacts the guide plate. During this contact process, the speed reducer support seat, under the action of the rear axle housing, can move in the width direction to form a support with the housing.

[0017] Optionally, a rear axle support seat is further included, and the rear axle support seat and the reducer support seat are distributed in the width direction of the vehicle. The rear axle housing is usually located on one side in the width direction of the frame. In order to prevent the frame from tilting, a rear axle support seat is also provided to support the rear axle bridge body.

[0018] Optionally, the flipping device includes a flipping member, a driving unit, and a connecting beam extending in the width direction; the connecting beam is rotatably connected to the base via the flipping member; the two arms of the same arm group are located on the same surface of the connecting beam, and the two arm groups are located on two adjacent and perpendicular surfaces of the connecting beam. Thus, the driving unit can flip the two arm groups by driving the connecting beam.

[0019] Optionally, the flip member includes a bottom bracket and a flip plate, wherein the bottom bracket is provided with a connecting member; the flip plate is connected to the bottom bracket via the connecting member so as to be flippable to be perpendicular to the base or parallel to the base. When the flip plate is parallel to the base, the flip plate covers the upper surface of the bottom bracket. This flip member has a relatively simple structure and high structural strength, thereby improving the durability of the supporting tooling.

[0020] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0022] Figure 1 This is a structural diagram of a vehicle frame support tooling in an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of the front structure of FIG. 1 , showing a flipped position of the support assembly;

[0024] Figure 3 yes Figure 1An enlarged schematic diagram of the front structure of FIG. 1 is shown, showing another flipped position of the support assembly;

[0025] Figure 4 yes Figure 1 An enlarged schematic diagram of the rear structure;

[0026] Figure 5 It is a structural diagram of the frame support and the frame in the supporting state, and the frame is in the first working position;

[0027] Figure 6 It is a structural diagram of the frame support and the frame in the supporting state, and the frame is in the second working position;

[0028] Figure 7 yes Figure 6 rear view.

[0029] Reference numerals:

[0030] 1-Support assembly; 11-First arm group; 12-Second arm group; 13-Arm; 14-Vertical plate; 15-Guide section; 16-Vertical section; 171-First in-position sensor; 172-Second in-position sensor; 2-Positioning arm; 21-U-shaped frame; 22-Baffle; 23-Connecting plate; 24-Equal diameter section; 25-Flaring section; 3-Reducer support seat; 31-Support plate; 32-Guide plate; 33-Limiting member; 34-Socket; 4-Rear axle support seat; 41-In-position detection member; 5-Connecting beam; 51-First surface; 52-Second surface; 61-Bottom bracket; 62-Flip plate; 63-Connecting member; 7-Base; 8-Drive unit; 9-Frame; 91-Longitudinal beam; 92-Rear axle assembly; 921-Rear axle housing; 922-Rear axle body; 93-Bottom; 10-Support arm. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Relational terms such as “first” and “second” are used merely to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0033] Please refer to Figures 1-4 and 5- Figure 7 , Figure 1 This is a structural diagram of a vehicle frame support tooling in an embodiment of the present utility model; Figure 2 yes Figure 1 An enlarged schematic diagram of the front structure of FIG. 1 , showing a flipped position of the support assembly; Figure 3 yes Figure 1An enlarged schematic diagram of the front structure of FIG. 1 is shown, showing another flipped position of the support assembly; Figure 4 yes Figure 1 An enlarged schematic diagram of the rear structure; Figure 5 It is a structural diagram of the frame 9 supporting and the frame 9 in the supporting state, and the frame 9 is in the first working position; Figure 6 It is a structural diagram of the frame 9 supporting and the frame 9 in the supporting state, and the frame 9 is in the second working position; Figure 7 yes Figure 6 rear view.

[0034] During the assembly of the vehicle, the rear axle assembly 92 needs to be installed on the bottom 93 of the frame 9 (the side of the frame 9 facing the ground when the vehicle is in use). At this time, a turning machine is usually required to turn the bottom 93 of the frame 9 to the direction facing away from the ground, and then the frame 9 is placed on the frame 9 support tooling. After the bottom 93 of the frame 9 and the rear axle assembly 92 are assembled, the turning machine is used to lift the frame 9 and turn it back to its original position, and then the frame 9 is placed on the frame 9 support tooling to transport the assembled frame 9 to the next production line.

[0035] The aforementioned operation process often results in inconvenient operation and low assembly efficiency when supporting the Z-shaped frame 9. Specifically, a Z-shaped frame 9 refers to a frame 9 structure in which the front and rear portions of the frame 9 form a height difference. The front portion of this type of frame 9 supports the vehicle's cockpit, while the rear portion supports the cargo hold. At the second working position of the frame 9 (the bottom 93 of the frame 9 refers to the portion of the frame 9 facing the ground during normal vehicle use), the height of the front portion of the frame 9 from the ground is lower than the height of the rear portion from the ground. This results in the front portion of the Z-shaped frame 9 changing height from the ground when it is pressed against the supporting fixture before and after it is flipped over.

[0036] like Figure 5-Figure 7 As shown, when the frame 9 is in the first working position (the bottom 93 of the frame 9 is flipped to the upper side), the height of the front portion of the frame 9 from the ground is higher; however, when the frame 9 is flipped and restored to the second working position (the bottom 93 of the frame 9 is again facing the ground), the height of the front portion of the frame 9 from the ground also decreases.

[0037] The support fixture includes a front support assembly 1 and a rear support assembly 1. The front support assembly 1 corresponds to the front portion of the longitudinal beam 91 of the support frame 9, and the rear support assembly 1 corresponds to the rear portion of the support frame 9. Traditional support fixtures require switching the height of the front support assembly 1 to accommodate the different heights of the frame 9 at the first and second workstations. Specifically, the support assembly 1 includes a high support rod and a short support rod. At the first workstation, the support fixture uses the high support rod to support the frame 9. At the second workstation, the high support rod needs to be manually removed and replaced with the short support rod to support the frame 9.

[0038] like Figures 1-4 As shown, the frame 9 support tooling includes a base 7 and a support assembly 1, and the support assembly 1 is used to support the longitudinal beam 91 of the frame 9; specifically, the support tooling can be provided with a support assembly 1, and the support assembly 1 is used to support the longitudinal beam 91 located at the front of the frame 9; or, the support tooling can be provided with two support assemblies 1, one for supporting the longitudinal beam 91 located at the front of the frame 9, and the other for supporting the longitudinal beam 91 located at the rear of the frame 9. After the frame 9 and the rear axle component 92 are assembled, when they are in the first workstation and pressed against the support tooling, the support assembly 1 for supporting the longitudinal beam 91 at the rear of the vehicle can avoid interfering with the rear axle component 92.

[0039] Specifically, the support assembly 1 has a first arm group 11, a second arm group 12 and a flipping device. The first arm group 11 and the second arm group 12 are both connected to the base 7 through the flipping device. Under the action of the flipping device, one of the first arm group 11 and the second arm group 12 can be flipped to be perpendicular to the base 7; one of the first arm group 11 and the second arm group 12 is larger in height than the other.

[0040] The pile turning device includes a driving part 8, which is used to drive the arm group to turn over; the driving part 8 can be a hydraulic cylinder, a pneumatic cylinder, etc., the cylinder body is rotatably connected to the base 7, and the piston end is transmission-connected to the first arm group 11 and the second arm group 12; here, the first arm group 11 and the second arm group 12 can be respectively provided with corresponding driving parts 8.

[0041] In some examples, the flipping device further includes a flipping member, and the connecting beam 5 is rotatably connected to the base 7 via the flipping member; the flipping member can be a rotating shaft fixedly connected to the base 7 or other common hinged structures.

[0042] Specifically, as shown in the figure, the flip member includes a bottom bracket 61 and a flip plate 62. The bottom bracket 61 can be composed of two vertically extending plates, and the plates correspond to the two ends of the connecting shaft; of course, the bottom bracket 61 can also be a frame structure that is approximately box-shaped, and technical personnel in this field can set it according to their needs.

[0043] The bottom bracket 61 is provided with a connector 63; the flip plate 62 is connected to the bottom bracket 61 via the connector 63, allowing it to flip to either perpendicular to or parallel to the base 7. When the flip plate 62 is parallel to the base 7, the flip plate 62 covers the upper surface of the bottom bracket 61. The connector 63 can be a plurality of hinges or a V-shaped elastic member, and those skilled in the art can choose the appropriate one. The flip member has a relatively simple structure and high structural strength, which improves the durability of the support tooling.

[0044] In this way, when the frame 9 is in the second workstation, the flipping device drives the first arm group 11 to flip along the first direction to be perpendicular to the base 7 to support the frame 9; when the frame 9 is in the first workstation, the flipping device drives the second arm group 12 to flip along the second direction to be perpendicular to the base 7 to support the frame 9; thereby, the appropriate arm group can be quickly switched for different workstations of the frame 9 to support the frame 9, thereby improving the continuity and efficiency of the production line.

[0045] Optionally, in this embodiment, a first in-position sensor 171 and a second in-position sensor 172 are further provided. When the first arm assembly 11 is perpendicular to the base 7, the first in-position sensor 171 is triggered, and when the second arm assembly 12 is perpendicular to the base 7, the second in-position sensor 172 is triggered. Both sensors are signal-connected to the controller, which is also signal-connected to the drive unit 8. When a corresponding in-position sensor is triggered, the controller determines that the support fixture is capable of supporting the frame 9 in the corresponding working condition, thereby sending a signal or controlling the tilting machine to lower the frame 9.

[0046] In one optional embodiment, when one of the first arm group 11 and the second arm group 12 is flipped to be perpendicular to the base 7, the other arm group is parallel to the base 7, that is, extends in the horizontal direction, and presses against the upper surface of the base 7 in the height direction. In this way, the base 7 forms a stop for one arm group in the flipping direction, ensuring the precise perpendicularity between the other arm group and the base 7.

[0047] Specifically, the first arm group 11 and the second arm group 12 are integrated into one body. In one embodiment, the flipping device further includes a connecting beam 5, to which the first arm group 11 and the second arm group 12 are integrated. The connecting beam 5 extends along the width direction. The two arms 13 in the same arm group are located on the same surface of the connecting beam 5, and the two arm groups are located on two adjacent and perpendicular surfaces of the connecting beam 5. Thus, the driving unit 8 can flip the two arm groups by driving the connecting beam 5.

[0048] In the example shown in the figure, the first arm group 11 and the second arm group 12 each include two arms 13, and the two arms 13 located in the same arm group are arranged in the width direction of the base 7; the arms 13 located on the same side in the width direction of the base 7 are perpendicular to each other; thereby, they are fixedly connected to the two ends of the connecting beam 5, and the connecting beam 5 is a box-type structure. The connecting beam 5 has a first surface 51 and a second surface 52 that are perpendicular to each other, and the first surface 51 and the second surface 52 both extend along the width direction of the base 7; the two arms 13 of the first arm group 11 are fixedly connected to the first surface 51, and the two arms 13 of the second arm group 12 are fixedly connected to the second surface 52.

[0049] In this embodiment, the connecting beam 5 is fixed to the upper surface of the flip plate 62, and the flip plate 62 enables the connecting beam 5 to be flipped between a vertical position and a horizontal position relative to the base 7. Of course, the connecting beam 5 can also be made of round steel, and this is not specifically limited here. Furthermore, the first and second arm groups 11 and 12 can also be constructed without the connecting beam 5, and instead have two arms 13 located on the same side forming a connection, with the drive unit 8 forming a transmission connection with one of the arms 13.

[0050] During actual use, when the frame 9 is first supported and matched with the supporting tooling at the first workstation, inaccurate positioning often occurs. In order to ensure the positioning accuracy, manual repeated measurements are often required, which seriously slows down the assembly rhythm and reduces the assembly efficiency.

[0051] In some embodiments, a vertical plate 14 is provided at the top of each arm 13 in the same arm group. The vertical plate 14 is perpendicular to the top of the arm 13 and is located on the side of the two arms 13 that is away from each other in the arrangement direction of the arms 13. As a result, the vertical plate 14 contacts the outer side wall of the longitudinal beam 91 on the corresponding side in the width direction of the base 7, thereby forming a stop for the frame 9 in the width direction.

[0052] During the lowering process of the vehicle frame 9, to ensure that the longitudinal beams 91 on the corresponding sides of the vehicle frame 9 can abut against the vertical plates 14 on the corresponding sides in the width direction, the vertical plates 14 include guide sections 15 and vertical sections 16 in the height direction. After the support fixture and the vehicle frame 9 form a support, the vertical sections 16 can abut against the outer side walls of the longitudinal beams 91. The vertical sections 16 are connected to the top ends of the arms 13, and the guide sections 15 are connected to the upper sides of the vertical sections 16. Each guide section 15 is inclined from the outside to the inside of the base 7, and the distance between the guide sections 15 of the two arms 13 decreases in height from top to bottom. In this way, during the lowering process of the vehicle frame 9, after the two longitudinal beams 91 contact the guide sections 15, they will be tightly attached to the vertical sections 16 under the action of the guide sections 15, thereby positioning the base 7 in the width direction.

[0053] At the same time, in order to position the frame 9 in the longitudinal direction, the support fixture also includes a positioning arm 2, which is arranged perpendicular to the base 7. A U-shaped frame 21 is provided at the top of the positioning arm 2. The U-shaped frame 21 includes two vertically arranged baffles 22 and a connecting plate 23 connected between the two baffles 22. The connecting plate 23 is connected to the top of the positioning arm 2. The connection can be formed by threading, riveting, or welding. The two baffles 22 are arranged opposite each other along the longitudinal direction of the base 7. In this way, the U-shaped frame 21 can form a support with the crossbeam of the frame 9, thereby positioning the frame 9 in its longitudinal direction.

[0054] When the vehicle frame 9 is in the first working position, the tilting machine first lowers the vehicle frame 9. The crossbeam of the vehicle frame 9 first contacts the positioning arm 2, which then positions the vehicle frame 9 in the longitudinal direction of the vehicle. The vehicle frame 9 then continues downward and contacts the guide section 15 of the vertical plate 14. The guide section 15 then positions the vehicle frame 9 in the width direction, thus completing the positioning of the vehicle frame 9 in both the longitudinal and width directions.

[0055] In this embodiment, the support assembly 1 is only used to support the front part of the frame 9. The rear part of the frame 9 is provided with a rear support arm 10 with a fixed height. The top of the support arm 10 is also provided with a vertical plate 14 with the same structure as the vertical plate 14 at the top of the arm 13, thereby forming a width-wise stop and height-wise support for the rear part of the longitudinal beam 91 of the frame 9.

[0056] Optionally, the U-shaped frame 21 has a constant diameter section 24 and a flared section 25, with the flared section 25 located at the opening of the top of the U-shaped frame 21. The flared section 25 can lower the position where the crossbeam and the U-shaped frame 21 meet, reducing the docking accuracy. At the same time, the flared section 25 serves as a guide, gradually adjusting the front-to-back position of the frame 9 during the lowering process so that the frame 9 matches the U-shaped frame 21, thereby completing the longitudinal positioning of the frame 9.

[0057] In another embodiment, the cooperation manner of the frame 9 in the initial state with the support tooling is explained. In this embodiment, the frame 9 has been assembled with the rear axle component 92 and flipped to the second workstation. At this workstation, the support assembly 1 has automatically flipped to the corresponding arm group to support the front of the frame 9. Since the rear part of the frame 9 is provided with the rear axle component 92, if the original support arm 10 is still used to support the longitudinal beam 91, interference is likely to occur. In order to support the rear part of the frame 9, the support tooling in this application also includes a reducer support seat 3 that can slide along the width direction. The reducer support seat 3 includes a support plate 31 and a guide plate 32. The support plate 31 extends in the vertical direction, and its bottom end is directly or indirectly slidably connected to the base 7; the top end is fixedly connected to the guide plate 32, and the guide plate 32 is V-shaped. The V-shaped fold line of the guide plate 32 extends along the length direction of the vehicle.

[0058] Specifically, a tubular limiter 33 is fixedly connected to the base 7. The axial direction of the tubular limiter 33 is parallel to the extension direction of the support plate 31, that is, its axial direction is located in the width direction of the base 7. A socket 34 is provided at the top of the limiter 33. The support plate 31 is inserted into the interior of the limiter 33 along the radial direction of the limiter 33 through the socket 34 and abuts against the inner tube wall of the limiter 33. In this embodiment, a plurality of ball bearings are provided at the bottom of the support plate 31. The ball bearings are embedded in the support plate 31, partially protruding from the support plate 31 and contacting the inner tube wall of the limiter 33, so that the support plate 31 can be rollingly connected to the inner tube wall of the limiter 33 through these ball bearings. A flexible pad is also provided on the V-shaped guide plate 32 to reduce the impact force.

[0059] When the vehicle frame 9 is assembled and flipped over to the second station for lowering, the rear axle housing 921 gradually contacts the guide plate 32. During this contact process, the reducer support base 3 is able to move in the width direction under the action of the rear axle housing 921 to form a support with the outer shell. During this process, since the width and length positioning of the vehicle frame 9 is performed when the vehicle frame 9 is in the first station, the width and length positioning of the vehicle frame 9 is not repeated in this process.

[0060] In this embodiment, a rear axle support seat 4 is also included, and the rear axle support seat 4 and the reducer support seat 3 are distributed in the width direction of the vehicle. The rear axle housing 921 is usually located on one side of the frame 9 in the width direction. In order to prevent the frame 9 from tilting, a rear axle support seat 4 is also provided to support the rear axle bridge body 922. The rear axle support seat 4 can also be provided with an in-place detection member 41. When the rear axle is supported on the rear axle support seat 4, the in-place detection member 41 sends a signal to the controller, and the controller controls the supporting tooling to carry the frame 9 to the next workstation. In this embodiment, the rear axle housing 921 is usually surrounded by a cavity for installing the reducer, and the rear axle bridge body 922 is usually surrounded by a tubular structure. As shown in the figure, the rear axle housing 921 has a radial dimension larger than the rear axle bridge body 922, and is radially protruded by the rear axle bridge body 922.

[0061] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A frame support tool, characterized in that: It comprises a base (7) and a support assembly (1), wherein the support assembly (1) is used to support a longitudinal beam (91) of a vehicle frame (9); The support assembly (1) comprises a first arm group (11), a second arm group (12) and a flipping device, wherein the first arm group (11) and the second arm group (12) are both connected to the base (7) via the flipping device; under the action of the flipping device, one of the first arm group (11) and the second arm group (12) flips to be perpendicular to the base (7); when the first arm group (11) is perpendicular to the base (7), its height dimension is greater than the dimension of the second arm group (12) when it is perpendicular to the base (7).

2. The frame support tooling according to claim 1, characterized in that: The first arm group (11) and the second arm group (12) each include two arm portions (13), and the two arm portions (13) in the same arm group are arranged along the width direction of the base (7); The two arm portions (13) located on the same side in the width direction and belonging to different arm groups are perpendicular to each other.

3. The frame support tooling according to claim 2, characterized in that: A vertical plate (14) is vertically provided at the top end of each arm portion (13), and the vertical plate (14) is located on a side of the two arm portions (13) away from each other in the width direction.

4. The frame support tooling according to claim 3, characterized in that: The vertical plate (14) includes a connected guide section (15) and a vertical section (16), wherein the vertical section (16) is connected to the top end of the arm portion (13), and the guide section (15) is vertically connected to the upper side of the vertical section (16). In the width direction, each guide section (15) is inclined from the outer side to the inner side of the base (7).

5. The frame support tool according to claim 3, characterized in that: It also includes a positioning arm (2), wherein the positioning arm (2) is arranged perpendicular to the base (7); A U-shaped frame (21) is provided at the top end of the positioning arm (2), and the U-shaped frame (21) includes two vertically arranged baffles (22) and a connecting plate (23) connected between the two baffles (22), and the two baffles (22) are arranged opposite to each other along the length direction of the base (7).

6. The vehicle frame supporting tool according to claim 5, characterized in that: The U-shaped frame (21) has a constant diameter section (24) and a flared section (25), the flared section (25) enclosing the opening of the U-shaped frame, and the constant diameter section (24) connected between the flared section (25) and the connecting plate (23).

7. The vehicle frame support tool according to claim 3, characterized in that: The invention also includes a reducer support seat (3) capable of sliding in the width direction, wherein the reducer support seat (3) includes a support plate (31) and a guide plate (32), wherein the support plate (31) extends in the vertical direction, and the bottom end thereof is directly or indirectly slidably connected to the base (7); and the top end is fixedly connected to the guide plate (32), wherein the guide plate (32) is V-shaped, and the V-shaped fold line of the guide plate (32) extends in the length direction of the vehicle.

8. The vehicle frame supporting tool according to claim 7, characterized in that: It also includes a rear axle support seat (4), wherein the rear axle support seat (4) and the reducer support seat (3) are distributed in the width direction of the base (7).

9. The vehicle frame support tool according to any one of claims 3 to 8, characterized in that: The flipping device comprises a flipping member and a connecting beam (5) extending in the width direction; the connecting beam (5) is rotatably connected to the base (7) via the flipping member; the two arm portions (13) located in the same arm group are located on the same surface of the connecting beam (5), and the arm portions (13) belonging to different arm groups are located on two adjacent and perpendicular surfaces of the connecting beam (5).

10. The vehicle frame supporting tool according to claim 9, characterized in that: The flip member comprises a bottom bracket (61) and a flip plate (62), wherein the bottom bracket (61) is provided with a connecting member (63); the flip plate (62) is connected to the bottom bracket (61) via the connecting member (63) and can flip between a vertical position and a horizontal position relative to the bottom bracket (61).

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