Assembly tool for composite material frame

By designing the assembly tooling of composite frames, and using the reasonable layout and structure of fixtures and assembly components, the problems of deformation and inaccurate dimensionality during the assembly process of composite frames are solved, and the product dimensional accuracy is guaranteed and structural stability is achieved.

CN222270094UActive Publication Date: 2024-12-31JIANGSU XINYANG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202323579097.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2024-12-31
Estimated Expiration
2033-12-27

AI Technical Summary

Technical Problem

Composite frames are prone to deformation during assembly, low parts accuracy makes it difficult to guarantee product size, and lack support structures, limiting their use range.

Method used

A composite material frame assembly tool is designed, using two pairs of fixtures to be spaced in the height direction, combining the side assembly components and the intermediate assembly components, and ensuring the parts by plugging into the sinker, supporting positioning parts and straps. Accurately position and fix, use fixing fixtures and tamping pins, and riveting after the glue is hardened to ensure product dimensional accuracy.

Benefits of technology

It effectively solves the problem that the structure is prone to deformation and difficult to guarantee the appearance dimensions when assembling the composite frame. It provides a reliable assembly solution to ensure that the product dimensional accuracy meets the requirements and does not deform after the tooling is removed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembling tool of a composite material frame, which comprises a bottom plate and two groups of side assembling components, each side assembling component comprises a side assembling bracket fixedly connected to the upper side of the bottom plate, and the upper part and the lower part of the front and rear sides of each side assembling bracket are respectively connected with a side connecting unit; the side connecting unit comprises a side positioning connecting plate fixedly connected to the side assembling support, a side positioning plate is connected to the portion, below the side positioning connecting plate, of the side assembling support, and a supporting positioning part extending out of the side positioning connecting plate is fixed to the upper side of the side positioning plate. The middle assembling assembly is fixedly connected to the upper side of the bottom plate between the two side assembling assemblies, the middle assembling assembly comprises a middle assembling support fixedly connected to the upper side of the bottom plate, and middle supporting frames are fixedly connected to the front side and the rear side of the middle assembling support correspondingly; the device is reasonable in structural layout and convenient for operators to construct, and assists in completing the assembly of the composite material frame.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to an assembly tool for a composite material frame. Background Art

[0002] Common frame structures usually adopt metal frame splicing and assembly. The metal frame parts have high dimensional accuracy, small and uniform assembly gaps, are not easy to produce stress deformation, and there is support inside the frame. The product structure is stable and can basically meet the appearance requirements in the end.

[0003] The precision of composite frame parts is slightly lower than that of metal parts, and deformation is easy to occur during assembly. The slightly lower precision of parts will also make it difficult to ensure the overall size of the product. In addition, the lack of support on the left and right sides of the frame will cause the product to be out of tolerance. This structure has a small scope of use and cannot be implemented using common assembly solutions. It is necessary to develop an assembly tool to assist in the assembly of the composite frame to ensure that deformation does not occur during the assembly process. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or existing problems in assembling composite material frames, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an assembly tool for a composite material frame. The utility model has a reasonable structural layout, is convenient for operators to construct, and assists in completing the assembly of the composite material frame, effectively solving the problem that the structure is easily deformed and the external dimensions are difficult to guarantee during the assembly of the composite material frame.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an assembly tool for a composite material frame, wherein two pairs of fixing members are respectively arranged on the inner side of the composite material frame, the two pairs of fixing members are arranged at intervals in the height direction, and each pair of fixing members is composed of two fixing members arranged at intervals in the front-rear direction; comprising:

[0008] Bottom plate,

[0009] Two groups of side assembly components, the side assembly components include a side assembly bracket fixedly connected to the upper side of the bottom plate, the upper and lower parts of the front and rear sides of the side assembly bracket are respectively connected with side connection units, the side connection unit includes a side positioning connecting plate fixedly connected to the side assembly bracket, the side assembly bracket below the side positioning connecting plate is connected with a side positioning plate, the upper side of the side positioning plate is fixed with a horizontally arranged support positioning portion extending out of the side positioning connecting plate, two pairs of fixing members are respectively horizontally plugged into the corresponding side positioning connecting plates, and the lower sides of the left and right ends of the fixing members are respectively fitted on the upper sides of the corresponding two support positioning portions;

[0010] An intermediate assembly component is fixedly connected to the upper side of the bottom plate between the two groups of side assembly components. The intermediate assembly component includes an intermediate assembly bracket fixedly connected to the upper side of the bottom plate. The front and rear sides of the intermediate assembly bracket are respectively fixedly connected with intermediate support frames. The lower side of the upper fixing piece is affixed to the upper side of the corresponding intermediate support frame, and the lower side of the lower fixing piece is affixed to the lower side of the intermediate support frame.

[0011] The fixing part includes a vertical part, and horizontal parts are respectively fixed at the upper and lower ends of one side of the assembly component on the opposite side of the vertical part, and a plug-in groove is formed between the two horizontal parts and the vertical part; when assembling the composite material frame, first, the four fixing parts are respectively plugged into the corresponding two side positioning connecting plates through the plug-in grooves, the fixing parts are supported on the upper side of the corresponding support positioning part, and the upper and lower sides of the middle support frame are respectively in contact with two fixing parts arranged at intervals in the height direction, and the two ends of the fixing parts are connected to the side positioning connecting plates, and then the fixing parts are connected to the middle support frame to further improve the reliability of the positioning of the fixing parts, and two stays are respectively installed on the two pairs of fixing parts, and the stays are fixed to the workpiece by using positioning pins through the machined holes on the stays and the corresponding machined holes on the fixing parts; secondly, the four rectangular tubes are respectively clamped tightly to the outer sides of the fixing parts, and the frame is inserted from both sides after confirmation. Note that the frame must be installed without stress when inserted. If it cannot be inserted smoothly, a small amount of grinding of the frame is required. After the frame is inserted and fits with the positioning surface of the assembly jig, the assembly of the frame is completed, and it is fixed by a clamp. After the fixing is completed, the connection holes of each part can be made; after the hole making is completed, the parts are disassembled and removed from the shelf, the embedded parts are installed and the burrs are cleaned, and the joint surfaces are roughened with glue. After confirmation, the fitting surfaces of each part are coated with glue, and they are reassembled on the jig, and the parts are fixed with pull pins and clamps. The parts can be riveted only after the glue hardens; finally, after the glue is completely cured, the product is removed from the shelf as a whole. When removing from the shelf, the bolts and other fasteners on the four fixing parts are first removed, and the assembled composite material frame is taken out from the top of the assembly jig to obtain the final product; the utility model has a reliable structure and a reasonable layout, which assists in the assembly of each part in the composite material frame and is convenient for operators to construct. At present, the dimensional accuracy of the assembled product meets the requirements, and will not be deformed after the jig is removed; it effectively solves the problem that the structure is easy to deform and the external dimensions are difficult to guarantee during the assembly of the composite material frame.

[0012] As a preferred solution for the assembly tooling of the composite material frame in the utility model, wherein: a plurality of first side connecting countersunk holes are respectively arranged on the front and rear sides of the upper and lower parts of the side assembly bracket, and a plurality of first side connecting holes corresponding to the first side connecting countersunk holes are arranged on the side positioning connecting plate.

[0013] As a preferred solution for the assembly tooling of the composite material frame in the utility model, wherein: the position of the side positioning plate in the height direction is adjustable, two second side connecting countersunk holes are opened on the side assembly bracket below the first side connecting hole, and two connecting grooves corresponding to the second side connecting countersunk holes are opened on the side positioning plate.

[0014] As a preferred solution for the assembly tooling of the composite material frame in the utility model, wherein: a plurality of vertically arranged second side connection holes are opened at one end of the side positioning connection plate away from the side assembly bracket, and mounting holes corresponding to the second side connection holes are opened on the fixing member, and when the fixing member is inserted into the corresponding two side positioning connection plates, the left side of the fixing member is flush with the left side of the side positioning connection plate at the left end, and the right side of the fixing member is flush with the right side of the side positioning connection plate at the right end, and the second side connection holes and the corresponding mounting holes are coaxial.

[0015] As a preferred solution for the assembly tooling of the composite material frame in the utility model, wherein: the upper and lower ends of the intermediate support frame are respectively connected with at least one connecting piece, the connecting piece at the upper end of the intermediate support frame is connected to the lower end of the upper fixing piece, and the connecting piece at the lower end of the intermediate support frame is connected to the upper end of the lower fixing piece.

[0016] As a preferred solution for the assembly tooling of the composite material frame in the utility model, the front and rear ends of the intermediate assembly bracket are respectively provided with a plurality of intermediate connection countersunk holes, and the intermediate support frame is provided with a plurality of intermediate connection holes corresponding one to one with the intermediate connection countersunk holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0020] Figure 3for Figure 1 A partial enlarged view of point B in the middle.

[0021] Figure 4 The composite material frame is installed on the three-dimensional structure of the utility model Figure 1 .

[0022] Figure 5 for Figure 4 A partial enlarged view of point C in the middle.

[0023] Figure 6 for Figure 4 A partial enlarged view of point D in the middle.

[0024] Figure 7 The composite material frame is installed on the three-dimensional structure of the utility model Figure 2 .

[0025] Figure 8 for Figure 7 A partial enlarged view of point E in the middle.

[0026] Fig. 9 This is a three-dimensional structural diagram of the assembled composite material frame.

[0027] Fig.10 for Fig. 9 A partial enlarged view of point F in the middle.

[0028] Fig.11 for Fig. 9 A partial enlarged view of point G in the middle.

[0029] In the figure: 100 side assembly component, 101 side assembly bracket, 101a second side connection countersunk hole, 101b first side connection countersunk hole, 102 side connection unit, 102a side positioning connection plate, 102a-1 second side connection hole, 102a-2 first side connection hole, 102b connection pin, 102c side positioning plate, 102c-1 support positioning portion, 102c-2 connection groove, 102d fixing nut, 200 middle assembly component, 2 01 middle support frame, 201a through hole, 201b middle connecting hole, 202 middle assembly bracket, 202a middle connecting countersunk hole, 203 connecting piece, 204 fastening nut, 300 bottom plate, 400 composite material frame, 401 fixing piece, 401a vertical part, 401a-1 mounting hole, 401a-2 middle fixing hole, 401b plug-in countersunk groove, 401c horizontal part, 402 rectangular tube, 403 frame, 404 support bar. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Reference Figures 1 to 11 This embodiment provides an assembly tool for a composite material frame, which can assist in the reliable assembly of the composite material frame 400, and the assembled composite material frame 400 is not easily deformed.

[0034] Specifically, two pairs of fixing members 401 are respectively provided on the inner side of the composite material frame 400, the fixing members 401 are made of metal material, the two pairs of fixing members 401 are spaced apart in the height direction, and each pair of fixing members 401 is composed of two fixing members 401 spaced apart in the front-rear direction;

[0035] An assembly tool for a composite material frame includes a base plate 300, on the upper side of which are fixedly connected two groups of side assembly components 100 and a group of middle assembly components 200 for assembling various parts of a composite material frame 400.

[0036] Specifically, the side assembly component 100 includes a side assembly bracket 101 fixedly connected to the upper side of the bottom plate 300, and the upper and lower parts of the front and rear sides of the side assembly bracket 101 are respectively connected with side connection units 102, and the side connection unit 102 includes a side positioning connection plate 102a fixedly connected to the side assembly bracket 101, and a side positioning plate 102c is connected to the side assembly bracket 101 below the side positioning connection plate 102a, and a horizontally arranged support positioning portion 102c-1 extending out of the side positioning connection plate 102a is fixed to the upper side of the side positioning plate 102c. The two pairs of fixing parts 401 are horizontally inserted into the corresponding side positioning connecting plates 102a, and the lower sides of the left and right ends of the fixing parts 401 are respectively attached to the upper sides of the corresponding two supporting positioning parts 102c-1; the intermediate assembly component 200 includes an intermediate assembly bracket 202 fixedly connected to the upper side of the base plate 300, and the front and rear sides of the intermediate assembly bracket 202 are respectively fixedly connected with the intermediate support frame 201, the lower side of the upper fixing part 401 is attached to the upper side of the corresponding intermediate support frame 201, and the lower side of the lower fixing part 401 is attached to the lower side of the intermediate support frame 201.

[0037] Among them, the fixing member 401 includes a vertical portion 401a, and horizontal portions 401c are respectively fixed at the upper and lower ends of one side of the assembly component 100 on the opposite side of the vertical portion 401a, and a plug-in groove 401b is formed between the two horizontal portions 401c and the vertical portion 401a; when assembling the composite material frame 400, firstly, the four fixing members 401 are respectively plugged into the corresponding two side positioning connecting plates 102a through the plug-in grooves 401b, and the fixing members 401 are supported on the upper side of the corresponding support positioning portion 102c-1, and the upper and lower sides of the middle support frame 201 are respectively in contact with the two fixing members 401 spaced apart in the height direction, and the two ends of the fixing member 401 are connected to the side positioning connecting plates 102a, and then the fixing member 401 is connected to the middle support frame 201, so as to further improve the reliability of the positioning of the fixing member 401, and two stays 404 are respectively installed on the two pairs of fixing members 401, and positioning pins are used to pass through the machined holes on the stays 404 and the corresponding holes on the fixing members 401 The support bar 404 is fixed to the workpiece through the machined holes; secondly, the four rectangular tubes 402 are respectively clamped to the outer sides of the fixing parts 401, and the frame 403 is inserted from both sides after confirmation. Note that the frame 403 needs to be installed without stress when inserted. If it cannot be inserted smoothly, the frame 403 needs to be slightly polished. The frame 403 is inserted and fits with the positioning surface of the assembly bracket to complete the assembly of the frame, and is fixed by a clamp. After the fixing is completed, the connection holes of each part can be made; after the hole making is completed, the parts are disassembled and removed from the shelf, the embedded parts are installed and the burrs are cleaned, and the rough glue joints are applied. After confirmation, the fitting surfaces of each part are coated with glue, and they are reassembled on the tooling, and the parts are fixed with the code pins and the clamps. The parts can be riveted only after the glue hardens; finally, after the glue is completely cured, the product is removed from the shelf as a whole. When removing from the shelf, the nuts and other fasteners on the four fixing parts 401 are first removed and removed, and the assembled composite material frame 400 is taken out from the top of the assembly tooling to obtain the final product.

[0038] Specifically, a plurality of first side connecting countersunk holes 101b are arranged on the front and rear sides of the upper and lower parts of the side assembly bracket 101, a plurality of first side connecting holes 102a-2 corresponding to the first side connecting countersunk holes 101b are arranged on the side positioning connecting plate 102a, the position of the side positioning plate 102c in the height direction is adjustable, two second side connecting countersunk holes 101a are opened on the side assembly bracket 101 below the first side connecting holes 102a-2, and two connecting grooves 102c-2 corresponding to the second side connecting countersunk holes 101a are opened on the side positioning plate 102c.

[0039] When installing the side positioning connecting plate 102a, align the side connecting hole with the corresponding first side connecting hole 102a-2, use the fixing bolt to screw into the first side connecting hole 102a-2 and the first side connecting countersunk hole 101b in sequence, and fix the side positioning connecting plate 102a to the outside of the side assembly bracket 101. The side positioning connecting plate 102a is easy to install; before installing the side positioning plate 102c, first insert the adjusting bolt into the connecting groove 102c-2 of the side positioning plate 102c, and then screw the adjusting bolt into the second side connecting countersunk hole 101b. 1a, the outer end of the adjusting bolt does not press the side positioning plate 102c onto the side assembly bracket 101, and when the fixing member 401 is inserted into the side positioning connecting plate 102a, the side positioning plate 102c is pushed upward, and the side positioning plate 102c slides up along the adjusting bolt. When the upper side of the supporting positioning portion 102c-1 abuts against the lower side of the corresponding fixing member 401, the adjusting bolt continues to be screwed in to fix the side positioning plate 102c on the side assembly bracket 101, thereby further improving the reliability of the positioning of the fixing member 401 in the height direction.

[0040] Specifically, a plurality of vertically arranged second side connection holes 102a-1 are formed on one end of the side positioning connecting plate 102a away from the side assembly bracket 101, and a mounting hole 401a-1 corresponding to the second side connection hole 102a-1 is formed on the horizontal portion 401c. When the fixing member 401 is inserted into the corresponding two side positioning connecting plates 102a, the left side of the fixing member 401 is flush with the left side of the side positioning connecting plate 102a at the left end, and the right side of the fixing member 401 is flush with the right side of the side positioning connecting plate 102a at the right end, and the second side connection hole 102a-1 and the corresponding mounting hole 401a-1 are coaxial.

[0041] After the fixing part 401 is positioned, the connecting pin 102b is inserted into the second side connecting hole 102a-1 and the corresponding mounting hole 401a-1 in sequence, and then the fixing nut 102d is screwed on the connecting pin 102b extending downward from the fixing part 401, so that the fixing nut 102d is pressed against the lower side of the fixing part 401 to fix the fixing part 401 in the length direction. At the same time, the upper end of the connecting pin 102b is in contact with the upper side of the fixing part 401, and the fixing of the left and right ends of the fixing part 401 in the height direction is achieved.

[0042] Specifically, a plurality of intermediate connecting countersunk holes 202a are respectively provided at the front and rear ends of the intermediate assembly bracket 202, a plurality of intermediate connecting holes 201b corresponding to the intermediate connecting countersunk holes 202a are provided on the intermediate support frame 201, and two connecting members 203 are respectively connected to the upper and lower ends of the intermediate support frame 201. The connecting member 203 at the upper end of the intermediate support frame 201 is connected to the lower horizontal portion 401c of the upper fixing member 401, and the connecting member 203 at the lower end of the intermediate support frame 201 is connected to the upper horizontal portion 401c of the lower fixing member 401. Two through holes 201a are respectively provided at the upper and lower ends of the intermediate support frame 201, and two intermediate fixing holes 401a-2 corresponding to the through holes 201a are provided on the horizontal portion 401c.

[0043] When installing the middle support frame 201 on the middle assembly bracket 202, align the left and right sides of the middle support frame 201 with the middle assembly bracket 202, align the middle connection hole 201b with the corresponding middle connection countersunk hole 202a, and attach the middle support frame 201 to the middle assembly bracket 202. Use fixing bolts to screw into the middle connection holes 201b and the middle connection countersunk holes 202a to fix the middle support frame 201 on the middle assembly bracket 202. After the left and right ends of the fixing member 401 are fixed, the upper connecting member 203 is inserted into the upper through hole 201a and the middle fixing hole 401a-2 from bottom to top in turn, and the fastening nut 204 is threadedly connected to the plug-in countersunk groove 401b. On the connecting piece 203 inside, the fastening nut 204 is pressed against the upper side of the corresponding horizontal part 401c; the lower connecting piece 203 is inserted into the lower through hole 201a and the middle fixing hole 401a-2 in sequence from top to bottom, and the fastening nut 204 is threadedly connected to the connecting piece 203 extending into the plug-in groove 401b, and the fastening nut 204 is pressed against the lower side of the corresponding horizontal part 401c, so as to fix the middle position of the fixing piece 401 and further improve the reliability of the connection of the fixing piece 401; after the composite material frame 400 is assembled on this tooling, it is only necessary to remove each fastening nut 204 and each fixing nut 102d, and take the composite material frame 400 upward to obtain the final product.

[0044] The utility model has a reliable structure and a reasonable layout, and assists in completing the assembly of various parts in the composite material frame 400, which is convenient for operators to construct. At present, the dimensional accuracy of the assembled product meets the requirements, and no deformation will occur after the tooling is removed.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An assembly tool for a composite material frame, characterized in that: Two pairs of fixing members (401) are respectively arranged on the inner side of the composite material frame (400), the two pairs of fixing members (401) are arranged at intervals in the height direction, and each pair of fixing members (401) is composed of two fixing members (401) arranged at intervals in the front-rear direction; include, Bottom plate (300), Two groups of side assembly components (100), the side assembly components (100) comprising a side assembly bracket (101) fixedly connected to the upper side of the bottom plate (300), the upper and lower parts of the front and rear sides of the side assembly bracket (101) are respectively connected with side connection units (102), the side connection unit (102) comprises a side positioning connection plate (102a) fixedly connected to the side assembly bracket (101), a side positioning plate (102c) is connected to the side assembly bracket (101) below the side positioning connection plate (102a), a horizontally arranged support positioning portion (102c-1) extending out of the side positioning connection plate (102a) is fixed to the upper side of the side positioning plate (102c), two pairs of fixing members (401) are respectively horizontally plugged into the corresponding side positioning connection plates (102a), and the lower sides of the left and right ends of the fixing members (401) are respectively attached to the upper sides of the corresponding two support positioning portions (102c-1); The middle assembly component (200) is fixedly connected to the upper side of the bottom plate (300) between the two groups of side assembly components (100), the middle assembly component (200) comprises a middle assembly bracket (202) fixedly connected to the upper side of the bottom plate (300), the front and rear sides of the middle assembly bracket (202) are respectively fixedly connected to the middle support frame (201), the lower side of the upper fixing member (401) is attached to the upper side of the corresponding middle support frame (201), and the lower side of the lower fixing member (401) is attached to the lower side of the middle support frame (201).

2. The assembly tool for composite material frame according to claim 1, characterized in that: A plurality of first side connection countersunk holes (101b) are arranged on the front and rear sides of the upper and lower parts of the side assembly bracket (101), and a plurality of first side connection holes (102a-2) corresponding one to one with the first side connection countersunk holes (101b) are arranged on the side positioning connection plate (102a).

3. The assembly tool for composite material frame according to claim 2, characterized in that: The position of the side positioning plate (102c) in the height direction is adjustable, two second side connection countersunk holes (101a) are formed on the side assembly bracket (101) below the first side connection hole (102a-2), and two connection grooves (102c-2) corresponding one to one with the second side connection countersunk holes (101a) are formed on the side positioning plate (102c).

4. The assembly tool for composite material frame according to claim 2 or 3, characterized in that: A plurality of vertically arranged second side connection holes (102a-1) are formed at one end of the side positioning connection plate (102a) away from the side assembly bracket (101); and mounting holes (401a-1) corresponding to the second side connection holes (102a-1) are formed on the fixing member (401); when the fixing member (401) is plugged into the two corresponding side positioning connection plates (102a), the left side of the fixing member (401) is flush with the left side of the side positioning connection plate (102a) at the left end, and the right side of the fixing member (401) is flush with the right side of the side positioning connection plate (102a) at the right end; and the second side connection holes (102a-1) and the corresponding mounting holes (401a-1) are coaxial.

5. The assembly tool for composite material frame according to any one of claims 1 to 3, characterized in that: At least one connecting piece (203) is connected to the upper and lower ends of the middle support frame (201), respectively; the connecting piece (203) at the upper end of the middle support frame (201) is connected to the lower end of the upper fixing piece (401), and the connecting piece (203) at the lower end of the middle support frame (201) is connected to the upper end of the lower fixing piece (401).

6. The assembly tool for composite material frame according to any one of claims 1 to 3, characterized in that: The front and rear ends of the intermediate assembly bracket (202) are respectively provided with a plurality of intermediate connection countersunk holes (202a), and the intermediate support frame (201) is provided with a plurality of intermediate connection holes (201b) corresponding one to one with the intermediate connection countersunk holes (202a).