CN114559674B - Sectional type composite material vehicle body assembling tool and assembling process - Google Patents

Abstract

The invention relates to the technical field of rail transit technology vehicle bodies, in particular to a sectional type composite material vehicle body assembling tool and an assembling process, wherein the tool comprises the following components: the assembly platform is provided with two sliding rails at two ends of the width of the vehicle body along the length direction of the vehicle body, a plurality of pairs of bottom positioning blocks are arranged between the two sliding rails, and each pair of bottom positioning blocks respectively limits one of the segmented vehicle bodies to limit the offset of the segmented vehicle bodies to the width direction of the vehicle body; the two portal frames slide along the slide rails, and outer contour positioning blocks are arranged on the portal frames and used for positioning the outer contour of the segmented vehicle body; and the internal supporting device slides along the slide rail, is at least partially positioned in the segmented vehicle body, supports the interior of the segmented vehicle body and supports the outer contour of the segmented vehicle body to the outer contour positioning block. According to the invention, the complicated steps of tensioning, supporting and fixing the flexible prefabricated body on the bonding tool are omitted, the operation is simple, the production efficiency can be greatly improved, and the cost is saved.

Description

Sectional type composite material vehicle body assembling tool and assembling process

Technical Field

The invention relates to the technical field of rail transit technology vehicle bodies, in particular to a sectional type composite material vehicle body assembling tool and assembling technology.

Background

With the development of raw materials and the progress of processes, the cost of composite materials in rail transit applications is gradually decreasing; meanwhile, due to the characteristics of fatigue resistance, corrosion resistance and the like of the composite material, the maintenance and repair cost is reduced; because of weight reduction, the operation capacity is improved, the energy consumption is reduced, and the life cycle cost is also reduced.

The application in rail transit gives full play to the superior characteristics of the carbon fiber composite material, and the structural design which is the same as that of a metal material is completed by using a lighter material, so that the weight of the whole vehicle is greatly reduced compared with that of a similar stainless steel or aluminum alloy vehicle body, and the carbon fiber composite material has great significance in improving the carrying capacity of the vehicle body, reducing energy consumption, reducing the life cycle cost, reducing route damage and the like.

Because the size of the rail transit vehicle body is large, the rail transit vehicle body is integrally molded or the vehicle body is divided into an end wall, a side wall, a bottom wall and the like for molding, and for the composite material, a large mold or autoclave is needed during curing molding, so that the molding is difficult and the cost is high on one hand, and the molding quality of the composite material is difficult to ensure on the other hand. In patent CN111559091A, a method for forming a car body by sections is disclosed, and in patent CN112975800B, a tool for bonding a car body made of composite material and a bonding process thereof are disclosed, wherein based on the method for forming sections, the sections of prepreg are bonded together by the bonding tool and are integrally cured.

However, in the actual production process, the prepreg is a flexible material, and when the prepreg is tensioned and fixed on the bonding tool, the operation is complicated, and a support mechanism and an extrusion mechanism need to be arranged on each section of the vehicle body to maintain the outer contour of the prepreg, so that the operation is difficult in the subsequent curing molding process.

In view of the above problems, the present designer is actively involved in research and innovation based on the practical experience and professional knowledge of many years of engineering application of such products and with the application of theory, so as to create a sectional composite material vehicle body assembly tool and assembly process, which is more practical.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention provides a sectional composite material vehicle body assembling tool and an assembling process, which effectively solve the problems in the background art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a sectional type combined material automobile body equipment frock assembles the segmentation automobile body after curing moulding, includes:

the assembly platform is provided with two sliding rails at two ends of the width of the vehicle body along the length direction of the vehicle body, a plurality of pairs of bottom positioning blocks are arranged between the two sliding rails, and each pair of bottom positioning blocks respectively limits one segmented vehicle body and limits the segmented vehicle body to deviate towards the width direction of the vehicle body;

the two portal frames slide along the slide rails, and an outer contour positioning block is arranged on each portal frame and used for positioning the outer contour of the segmented vehicle body;

the inner supporting device slides along the sliding rail, is at least partially positioned in the segmented vehicle body, supports the interior of the segmented vehicle body, and supports the outer contour of the segmented vehicle body to the outer contour positioning block.

Furthermore, the outer contour positioning blocks comprise a plurality of top positioning blocks and a plurality of side positioning blocks, the top positioning blocks are located at the top end of the segmented vehicle body, and the side positioning blocks are located at two ends of the segmented vehicle body in the width direction respectively.

Further, the internal support device comprises:

the walking assembly is arranged on the two sliding rails and walks along the two sliding rails;

the supporting component is arranged on the walking component and is located close to one end of the portal frame, the supporting component extends into the segmented vehicle body, and a plurality of top supporting structures and side supporting structures are arranged on the supporting component and respectively support the top and two side edges inside the segmented vehicle body.

Furthermore, the number of the top supporting structures is the same as that of the top positioning blocks, and the positions of the top supporting structures and the positions of the top positioning blocks correspond to each other;

the number of the side supporting structures is the same as that of the side positioning blocks, and the positions of the side supporting structures and the positions of the side positioning blocks correspond to each other.

Furthermore, the supporting component is a foldable structure, the supporting component is located in a first state after the top supporting structure and the side supporting structure are folded, the supporting component is located in a second state after the top supporting structure and the side supporting structure are unfolded, when the supporting component is located in the first state, the outline area of the supporting component is smaller than the channel area of the vehicle body end wall, and when the supporting component is located in the second state, the supporting component supports the interior of the segmented vehicle body.

Furthermore, be provided with first folding rod on the supporting component, first folding rod sets up along vertical direction, and the top includes a collapsible folding section to the horizontally at least, first folding rod top is provided with the second folding rod, the setting of second folding rod level, top bearing structure set up in the second folding rod top, second folding rod middle part with first folding rod is connected, the collapsible extremely laminating each other in second folding rod both ends.

Furthermore, the support assembly is provided with two rotating frames, one end of each of the two rotating frames is rotatably arranged on the walking assembly and takes the vertical direction as a rotating axis, the other end of each of the two rotating frames is provided with a third folding rod, the third folding rods are vertically arranged, and the top ends of the two rotating frames can be at least partially folded to positions close to the bottom ends; and when the two third folding rods are close to each other, the third folding rods are positioned in the middle position in the segmented vehicle body.

Further, top bearing structure and side bearing structure include section bar and screw rod, be provided with the screw hole on the section bar, the screw rod with the screw hole is mutually supported, the screw rod can be close to or keep away from segmentation automobile body inner wall when rotatory, the screw rod is provided with flexible piece near the one end of segmentation automobile body inner wall, flexible piece and the laminating of segmentation automobile body inner wall, the screw rod other end is provided with the handle.

Further, the length of the portal frame in the direction parallel to the length extension direction of the car body is smaller than that of the sectional car body.

The invention also comprises a sectional type composite material vehicle body assembling process, further comprising the following steps:

s1: hoisting the first subsection vehicle body above the assembling platform and placing the first subsection vehicle body between the corresponding pair of bottom positioning blocks;

s2: moving a first portal frame to the first subsection vehicle body, and limiting the outer contour of the first portal frame;

s3: hoisting a second sectional vehicle body above the assembling platform, and placing the second sectional vehicle body between a pair of adjacent bottom positioning blocks, wherein the two sectional vehicle bodies are mutually attached;

s4: moving a second portal frame to the second sectional vehicle body, and limiting the outer contour of the second portal frame;

s5: moving the internal support device to be close to the second subsection and moving the folded support component to extend into the second subsection vehicle body;

s6: unfolding the supporting component to support the interior of the second section;

s7: fixedly connecting the first sectional vehicle body and the second sectional vehicle body;

s8: folding the supporting component, moving the supporting component to the outside of the second subsection vehicle body, moving the second portal frame to the outside of the second subsection vehicle body, moving the first portal frame to the position of the second subsection vehicle body, wherein the distance between the first portal frame and the second portal frame is greater than the length of the subsection vehicle body;

s9: and hoisting the third sectional vehicle body above the assembling platform, placing the third sectional vehicle body close to the second sectional vehicle body, taking the original second sectional vehicle body as the first sectional vehicle body and the third sectional vehicle body as the second sectional vehicle body, and repeating the steps S4 to S8 until all the sectional vehicle bodies are fixedly connected.

The beneficial effects of the invention are as follows: the invention assembles the solidified and formed sectional vehicle body, arranges an assembling platform, two portal frames and an internal supporting device, hoists the two sectional vehicle bodies to the assembling platform, positions the outer contour of the sectional vehicle body by a bottom positioning block and an outer contour positioning block of the portal frames, supports the inside of the sectional vehicle body by the internal supporting device, fits the outer contour of the sectional vehicle body with the outer contour positioning block to ensure the outer contour of the vehicle body, then fixedly connects the two sectional vehicle bodies, and can regard the sectional vehicle body as a plate for bolt connection or riveting because the sectional vehicle body is solidified and formed, on one hand, the sectional vehicle body does not need a large-sized die or a hot pressing tank during forming to ensure the forming quality, on the other hand, the complicated steps of tensioning, supporting and fixing the flexible prefabricated body on a bonding tool are omitted, and when the solidified sectional vehicle body is supported, the operation is simple, the production efficiency can be greatly improved, and the cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an assembly fixture;

FIG. 2 is a schematic view of the internal support device in an expanded configuration;

FIG. 3 is a front view of the top support structure;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view of the second folding bar of FIG. 4 after folding;

FIG. 6 is a schematic view of the first folding bar of FIG. 5 after folding;

FIG. 7 is a front view of the side support structure;

FIG. 8 is a schematic view of the rotary frame of FIG. 7 after rotation;

fig. 9 is a schematic view of the third folding bar of fig. 8 after folding;

FIG. 10 is a schematic view of the support assembly as folded through the headwall;

FIG. 11 is a schematic view of the top support structure and the side support structure;

FIG. 12 is a schematic view of an assembly process step S1 according to the present invention;

FIG. 13 is a schematic view of the assembly process steps S2 and S3 of the present invention;

FIG. 14 is a schematic view of steps S4-S7 of the assembly process of the present invention;

FIG. 15 is a schematic view of the assembly process steps S8 and S9 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1 to 11: the utility model provides a sectional type combined material automobile body equipment frock assembles the segmentation automobile body 4 after the solidification moulding, includes:

the assembly platform 1 is provided with two slide rails 11 at two ends of the width of the vehicle body of the assembly platform 1 along the length direction of the vehicle body, a plurality of pairs of bottom positioning blocks 12 are arranged between the two slide rails 11, and each pair of bottom positioning blocks 12 respectively limit one segmented vehicle body 4 and limit the segmented vehicle body 4 to deviate towards the width direction of the vehicle body;

the two portal frames 2 slide along the slide rails 11, and an outer contour positioning block is arranged on each portal frame 2 and used for positioning the outer contour of the segmented car body 4;

the internal supporting device 3 slides along the slide rail 11, and at least part of the internal supporting device 3 is positioned in the segmented vehicle body 4 to support the inside of the segmented vehicle body 4 and support the outer contour of the segmented vehicle body 4 to the outer contour positioning block.

The assembly platform 1, the two portal frames 2 and the internal supporting device 3 are arranged by assembling the subsection vehicle body 4 after curing and forming, the two subsection vehicle bodies 4 are hoisted to the assembly platform 1, the bottom positioning block 12 and the external contour positioning block of the portal frames 2 position the external contour of the subsection vehicle body 4 together, the internal supporting device 3 supports the interior of the subsection vehicle body 4, the external contour of the subsection vehicle body 4 is jointed with the external contour positioning block to ensure the external contour of the vehicle body, then the two subsection vehicle bodies 4 are fixedly connected, and the subsection vehicle body 4 is cured and formed, so the subsection vehicle body 4 can be regarded as a plate to be bolted or riveted, on one hand, a large-size die or a hot pressing tank is not needed when the subsection vehicle body 4 is formed, the forming quality is ensured, on the other hand, the complicated steps of tensioning, supporting and fixing the flexible prefabricated body on a bonding tool are omitted, when the solidified segmented vehicle body 4 is supported, the operation is simple, the production efficiency can be greatly improved, and the cost is saved.

In this embodiment, the outer contour positioning blocks include a plurality of top positioning blocks 21 and a plurality of side positioning blocks 22, the plurality of top positioning blocks 21 are located at the top end of the segment car body 4, and the plurality of side positioning blocks 22 are respectively located at two ends of the segment car body 4 in the width direction.

As shown in fig. 2, the internal support device 3 includes:

the walking assembly 31 is arranged on the two slide rails 11, and the walking assembly 31 walks along the two slide rails 11;

the supporting component 32, the supporting component 32 sets up on walking component 31, and is located the one end that is close to portal frame 2, and in the supporting component 32 extended to segmentation automobile body 4, be provided with a plurality of top bearing structure 321 and side bearing structure 322 on the supporting component 32, support the inside top and the both sides limit of segmentation automobile body 4 respectively.

In order to assemble the segment body 4, when the segment body 4 is hoisted to the assembly platform 1, the portal frame 2 and the internal supporting device 3 are required to be capable of traveling along the slide rail 11, and when the segment body 4 is supported, the outer contour of the segment body 4 is ensured through the top positioning block 21, the top supporting structure 321, the side positioning block 22 and the side supporting structure 322, so that the segment body is prevented from deforming, the assembly and the like are affected, and the assembly efficiency is improved.

Because the sectional car bodies 4 at the two ends of the car body comprise end walls, and the end walls have a certain supporting effect on the outer contours of the sectional car bodies 4, the two sectional car bodies 4 at the two ends of the car body are not easy to deform, so that only one internal supporting device 3 needs to be arranged during assembly, and when the car body is assembled, every two sectional car bodies 4 are fixedly connected from one end to the other end respectively according to the car body length sequence.

As a preference of the above embodiment, the number of the top supporting structures 321 is the same as that of the top positioning blocks 21, and the positions thereof correspond to each other;

the number of the side supporting structures 322 is the same as that of the side positioning blocks 22, and the positions thereof correspond to each other.

The top supporting structures 321 and the top positioning blocks 21 are the same in number and correspond in position, and the side supporting structures 322 and the side positioning blocks 22 are the same in number and correspond in position, so that when supporting is carried out, the positioning of the segmented vehicle body 4 is more accurate, the stress is balanced, and the outer contour of the segmented vehicle body 4 is ensured.

As shown in fig. 3 to 10, the support members 32 are foldable structures, the support members 32 are in a first state after the top support structures 321 and the side support structures 322 are folded, the support members 32 are in a second state after the top support structures 321 and the side support structures 322 are unfolded, the support members 32 have an outer contour area smaller than a vehicle body wall passage area when in the first state, and the support members 32 support the interior of the segmented vehicle body 4 when in the second state.

Because the end walls at the two ends of the car body have the effect of coating the segmented car body 4, when the segmented car body 4 at the last section is supported, the supporting component 32 can only stretch into the segmented car body 4 through the channel on the end walls, and when the segmented car body 4 is assembled, the mounting structures extending into the car body are arranged at the two ends of the segmented car body 4, and the supporting component 32 can also stretch into the segmented car body 4 to limit to a certain extent, so that the supporting component 32 is set to be a foldable structure, the outline area of the supporting component is smaller than that of the channel on the end walls after being folded, thereby when the last segment is fixed, the supporting component 32 can completely stretch into the segmented component after being folded, then is unfolded, and the segmented car body 4 is supported.

As shown in fig. 3 to 6, a first folding rod 323 is arranged on the supporting component 32, the first folding rod 323 is arranged along the vertical direction, and the top end of the first folding rod 323 at least comprises a foldable folding section to the horizontal, a second folding rod 323 is arranged at the top end of the first folding rod 323, the second folding rod 323 is arranged horizontally, the top supporting structure 321 is arranged at the top end of the second folding rod 323, the middle part of the second folding rod 323 is connected with the first folding rod 323, and the two ends of the second folding rod 323 can be folded to be attached to each other.

As shown in fig. 7 to 9, the supporting assembly 32 is provided with two rotating frames 325, one end of each of the two rotating frames 325 is rotatably disposed on the traveling assembly 31 and takes the vertical direction as the rotation axis, the other end of each of the two rotating frames 325 is provided with a third folding rod 326, the third folding rod 326 is vertically disposed, and the top end of each of the two rotating frames 326 is at least partially foldable to a position close to the bottom end, when the two rotating frames 325 rotate, the two third folding rods 326 are driven to approach or separate from each other, when the two third folding rods 326 separate from each other, the two third folding rods are respectively located in the segment car body 4 and close to the two side edges, and the side edge supporting structure 322 is disposed on the third folding rod 326; the third folding bars 326 are located at the middle position in the segment body 4 when they are close to each other.

When assembling the last segment, it is necessary to fold the support assembly 32 completely, and at this time, the second folding bar 323 is folded to be attached to each other, and then the top end of the first folding bar 323 is folded, the two rotating frames 325 are rotated to be close to each other, and the third folding bar 326 is folded, so as to be able to extend into the passage.

When the car body 4 except the last segment is installed, the car body is not required to be completely folded, the first folding rod 323 is only required to be folded, and the two rotating frames 325 rotate to be close to each other, so that the installation structure between the two segments can be avoided, the supporting component 32 can extend into the segment car body 4, and the assembling time is saved.

As shown in fig. 11, in the present embodiment, the top supporting structure 321 and the side supporting structure 322 include a section bar 33 and a screw rod 34, a threaded hole is provided on the section bar 33, the screw rod 34 is matched with the threaded hole, the screw rod 34 can be close to or far away from the inner wall of the segment car body 4 when rotating, a flexible block 341 is provided at one end of the screw rod 34 close to the inner wall of the segment car body 4, the flexible block 341 is attached to the inner wall of the segment car body 4, and a handle 342 is provided at the other end of the screw rod 34.

Through setting up top bearing structure 321 and side bearing structure 322 into adjustable screw rod 34, if the mounting structure between two segmentation automobile bodies 4 is not to the distance of extending in the automobile body very big, then accessible adjusting screw 34, make screw rod 34 dodge the mounting structure, stretch into segmentation automobile body 4 back, rethread adjusting screw 34 supports segmentation automobile body 4 inner wall, make when removing last segmentation automobile body 4 in the installation, can need not to fold supporting component 32, only need adjusting screw 34 can, set up flexible block 341 at screw rod 34 tip, can protect segmentation automobile body 4 inner wall.

In the present embodiment, the length of the gantry 2 in the direction parallel to the longitudinal extension of the car body is smaller than the length of the segment car body 4.

By making the length of the portal frame 2 smaller than that of the segment wagon bodies 4, when one segment wagon body 4 is hoisted on the assembly platform 1, one portal frame 2 can be moved onto the segment wagon body 4 first without affecting hoisting of the other segment wagon body 4.

As shown in fig. 12 to 15, the present embodiment further includes a sectional composite material vehicle body assembling process, and as a preference of the foregoing embodiment, the present embodiment includes the following steps:

s1: hoisting the first segment car body 4 above the assembling platform 1 and placing the first segment car body between a pair of corresponding bottom positioning blocks 12;

s2: moving the first portal frame 2 to the first subsection vehicle body 4, and limiting the outer contour of the first portal frame;

s3: hoisting a second sectional vehicle body 4 above the assembling platform 1, and placing the second sectional vehicle body between a pair of adjacent bottom positioning blocks 12, wherein the two sectional vehicle bodies 4 are mutually attached;

s4: moving the second portal frame 2 to a second sectional vehicle body 4, and limiting the outer contour of the second portal frame;

s5: moving the internal bracing means 3 to close the second subsection and to the folded bracing assembly 32 into the second subsection bodywork 4;

s6: unfolding the support component 32 to support the inner part of the second section;

s7: fixedly connecting the first sectional vehicle body 4 with the second sectional vehicle body 4;

s8: folding the support assembly 32, moving the support assembly to the outside of the second sectional car body 4, moving the second portal frame 2 to the outside of the second sectional car body 4, moving the first portal frame 2 to the second sectional car body 4, wherein the distance between the first portal frame 2 and the second portal frame 2 is greater than the length of the sectional car body 4;

s9: and hoisting the third sectional vehicle body 4 above the assembling platform 1, placing the third sectional vehicle body 4 close to the second sectional vehicle body 4, taking the original second sectional vehicle body 4 as the first sectional vehicle body 4, taking the third sectional vehicle body 4 as the second sectional vehicle body 4, and repeating the steps S4-S8 until all the sectional vehicle bodies 4 are fixedly connected.

The assembly platform 1, the two portal frames 2 and the internal supporting device 3 are arranged by assembling the solidified and molded sectional car body 4, the two sectional car bodies 4 are hoisted to the assembly platform 1, the bottom positioning block 12 and the external contour positioning block of the portal frames 2 position the external contour of the sectional car body 4 together, the internal supporting device 3 supports the inside of the sectional car body 4, the external contour of the sectional car body 4 is jointed with the external contour positioning block to ensure the external contour of the car body, then the two sectional car bodies 4 are fixedly connected, the sectional car body 4 can be regarded as a plate for bolt connection or riveting because the sectional car body 4 is solidified and molded, on one hand, a large-size die or a hot pressing tank is not needed when the sectional car body 4 is molded, the molding quality is ensured, on the other hand, the complicated steps of tensioning, supporting and fixing the flexible prefabricated body on a bonding tool are omitted, when the solidified segmented vehicle body 4 is supported, the operation is simple, the production efficiency can be greatly improved, and the cost is saved.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a sectional type combined material automobile body equipment frock assembles the segmentation automobile body after the solidification moulding, a serial communication port, includes:

the assembly platform is provided with two sliding rails at two ends of the width of the vehicle body along the length direction of the vehicle body, a plurality of pairs of bottom positioning blocks are arranged between the two sliding rails, and each pair of bottom positioning blocks respectively limits one segmented vehicle body and limits the segmented vehicle body to deviate towards the width direction of the vehicle body;

the two portal frames slide along the slide rails, and an outer contour positioning block is arranged on each portal frame and used for positioning the outer contour of the segmented vehicle body;

the internal supporting device slides along the slide rail, is at least partially positioned in the segmented vehicle body, supports the interior of the segmented vehicle body and supports the outer contour of the segmented vehicle body to the outer contour positioning block;

the outer contour positioning blocks comprise a plurality of top positioning blocks and a plurality of side positioning blocks, the top positioning blocks are positioned at the top end of the segmented car body, and the side positioning blocks are respectively positioned at two ends of the segmented car body in the width direction;

the internal support device includes:

the walking assembly is arranged on the two sliding rails and walks along the two sliding rails;

the supporting assembly is arranged on the walking assembly and is positioned at one end close to the portal frame, the supporting assembly extends into the segmented car body, and a plurality of top supporting structures and side supporting structures are arranged on the supporting assembly and respectively support the top and two side edges in the segmented car body;

the support assembly is a foldable structure, the support assembly is in a first state after the top support structure and the side support structure are folded, the support assembly is in a second state after the top support structure and the side support structure are unfolded, when the support assembly is in the first state, the outline area of the support assembly is smaller than the channel area on the vehicle end wall, and when the support assembly is in the second state, the support assembly supports the interior of the segmented vehicle body;

the last first folding rod that is provided with of supporting component, first folding rod sets up along vertical direction, and the top includes a collapsible folding section to the horizontally at least, first folding rod top is provided with the second folding rod, the setting of second folding rod level, top bearing structure set up in the second folding rod top, the second folding rod middle part with first folding rod is connected, the collapsible extremely laminating each other in second folding rod both ends.

2. The segmented composite vehicle body assembly tooling of claim 1, wherein the number of the top support structures and the number of the top positioning blocks are the same, and the positions of the top support structures and the positions of the top positioning blocks correspond to each other;

the number of the side supporting structures is the same as that of the side positioning blocks, and the positions of the side supporting structures and the positions of the side positioning blocks correspond to each other.

3. The sectional type composite material vehicle body assembly tool according to claim 1, wherein the support assembly is provided with two rotating frames, one end of each rotating frame is rotatably arranged on the traveling assembly and takes a vertical direction as a rotating axis, the other end of each rotating frame is provided with a third folding rod, the third folding rod is vertically arranged, the top end of each third folding rod can be at least partially folded to be close to the bottom end, the two rotating frames drive the two third folding rods to be close to or away from each other when rotating, the two third folding rods are respectively positioned in the sectional type vehicle body to be close to two side edges when being away from each other, and the side edge support structure is arranged on the third folding rod; and when the two third folding rods are close to each other, the third folding rods are positioned in the middle position in the segmented vehicle body.

4. The sectional type composite material vehicle body assembly tool according to any one of claims 1 to 3, wherein the top support structure and the side support structure comprise a section bar and a screw rod, the section bar is provided with a threaded hole, the screw rod is matched with the threaded hole, the screw rod can be close to or far away from the inner wall of the sectional vehicle body when rotating, one end of the screw rod close to the inner wall of the sectional vehicle body is provided with a flexible block, the flexible block is attached to the inner wall of the sectional vehicle body, and the other end of the screw rod is provided with a handle.

5. The segmented composite vehicle body assembly tooling of claim 1, wherein the length of the gantry in a direction parallel to the length extension of the vehicle body is less than the length of the segmented vehicle body.

6. A sectional type composite material vehicle body assembling process is characterized in that the vehicle body assembling tool according to any one of claims 1 to 5 is used for assembling, and comprises the following steps:

s1: hoisting the first subsection vehicle body above the assembling platform and placing the first subsection vehicle body between the corresponding pair of bottom positioning blocks;

s2: moving a first portal frame to the first subsection vehicle body, and limiting the outer contour of the first portal frame;

s3: hoisting a second sectional vehicle body above the assembling platform, and placing the second sectional vehicle body between a pair of adjacent bottom positioning blocks, wherein the two sectional vehicle bodies are mutually attached;

s4: moving a second portal frame to the second sectional vehicle body, and limiting the outer contour of the second portal frame;

s5: moving the internal support device to be close to the second subsection and moving the folded support component to extend into the second subsection vehicle body;

s6: unfolding the supporting component to support the interior of the second section;

s7: fixedly connecting the first sectional vehicle body with the second sectional vehicle body;

s8: folding the support assembly, moving the support assembly to the outside of the second sectional trolley body, moving the second portal frame to the outside of the second sectional trolley body, and moving the first portal frame to the position of the second sectional trolley body, wherein the distance between the first portal frame and the second portal frame is greater than the length of the sectional trolley body;

s9: and hoisting the third sectional vehicle body above the assembling platform, placing the third sectional vehicle body close to the second sectional vehicle body, taking the original second sectional vehicle body as the first sectional vehicle body and the third sectional vehicle body as the second sectional vehicle body, and repeating the steps S4 to S8 until all the sectional vehicle bodies are fixedly connected.

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