Cabin cementing positioning tool

Abstract

The utility model provides a cabin cementing positioning tool which comprises a base, a boss is arranged on the upper surface of the base, a first positioning structure is arranged on the boss, a positioning shaft is arranged on the boss, a plurality of positioning flanges are arranged on the positioning shaft, second positioning structures are arranged on the positioning flanges, and a cover plate is arranged on the top of the positioning shaft. An annular flange is arranged at the bottom of the cover plate, a third positioning structure is arranged on the annular flange, and a fourth positioning structure is further arranged on the upper surface of the base. The base of the tool supports the cabin body and the rear frame, the outer wall of the boss limits horizontal movement of the cabin body and the rear frame, the first positioning structure limits circumferential rotation of the cabin body and the rear frame so that the cabin body and the rear frame can be accurately positioned, the second positioning structure accurately positions the metal supporting lug, it is ensured that the installation position of the metal supporting lug is accurate, and the installation efficiency is improved. And the front frame is accurately positioned through the lower surface of the cover plate, the annular flange and the third positioning structure. The tool solves the problem that the metal insert is difficult to position in the cementing process.

Description

Technical Field

[0001] The utility model relates to the technical field of cabin assembly, in particular to a cabin bonding positioning tooling. Background Art

[0002] Composite cabins have been widely used in the aerospace field, such as the structural shells of rockets, missiles, launch tubes, etc. These cabins have the advantages of light weight, corrosion resistance, and high strength compared with metal cabins.

[0003] This kind of composite material cabin is generally conical or cylindrical in structure. A front frame, a rear frame, and several metal lugs are installed on the inner wall of the cabin. These metal parts are installed in the installation holes on the inner wall of the cabin by bonding. There are problems with difficult positioning during the bonding process of these metal parts. If the positioning is inaccurate, it will cause problems such as other instruments and equipment being unable to be installed or having interference during installation, resulting in the entire cabin being unusable. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a cabin bonding positioning tooling, which solves the problem of difficult positioning of the front frame, rear frame, and several metal lugs during the bonding process in the existing technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cabin bonding positioning tooling, including a base. A convex platform for horizontally positioning the cabin and the rear frame is arranged on the upper surface of the base. A first positioning structure for circumferentially positioning the cabin and the rear frame is arranged on the convex platform. A positioning shaft is installed on the convex platform. Several positioning flanges are installed on the positioning shaft. A second positioning structure for positioning the metal lugs is arranged on the positioning flanges. A cover plate is installed at the top of the positioning shaft. An annular flange for horizontally positioning the front frame is arranged at the bottom of the cover plate. A third positioning structure for circumferentially positioning the front frame is arranged on the annular flange. A fourth positioning structure for positioning the cabin bump is also arranged on the upper surface of the base.

[0006] As a further improvement of the above technical solution:

[0007] The positioning shaft includes a first positioning shaft, a second positioning shaft, and a third positioning shaft. The lower end of the first positioning shaft is detachably connected to the boss. The top end of the first positioning shaft is detachably connected to the second positioning shaft. The top end of the second positioning shaft is detachably connected to the third positioning shaft. The positioning flange includes a first positioning flange, a second positioning flange, and a third positioning flange. The first positioning flange is detachably sleeved on the upper end of the first positioning shaft. The second positioning flange and the third positioning flange are detachably sleeved on the second positioning shaft. The positioning flange is detachably sleeved on the first positioning shaft and the second positioning shaft. The cover plate is detachably installed on the top of the third positioning shaft.

[0008] A first installation groove is formed in the middle of the upper surface of the boss. The lower end of the first positioning shaft is inserted into the first installation groove. A first limiting groove is formed at a position deviated from the center of the first installation groove. A first limiting block is installed in the first limiting groove. A second limiting groove matching the first limiting block is axially formed on the outer wall of the first positioning shaft. One end of the first limiting block is located in the first limiting groove, and the other end is located in the second limiting groove.

[0009] A second installation groove is formed on the upper surface of the first positioning shaft. A first convex block matching the second installation groove is provided at the bottom of the second positioning shaft. The first positioning shaft and the second positioning shaft are detachably connected. A third limiting groove is formed at the top of the second limiting groove. A second limiting block is provided in the third limiting groove. A fourth limiting groove matching the second limiting block is formed on the first positioning flange. A fifth limiting groove matching the second limiting block is formed at the lower end of the second positioning shaft. One end of the second limiting block is located in the third limiting groove, and the other end passes through the fourth limiting groove and extends into the fifth limiting groove.

[0010] A third installation groove is formed at the top of the second positioning shaft. A second convex block matching the third installation groove is installed at the bottom of the third positioning shaft. The second positioning shaft and the third positioning shaft are detachably connected. A sixth limiting groove is formed on the outer wall of the upper end of the second positioning shaft. A seventh limiting groove is formed on the second positioning flange. A third limiting block is installed in the sixth limiting groove, and the other end of the third limiting block is located in the seventh limiting groove. The second positioning flange is detachably sleeved on the upper end of the second positioning shaft. An eighth limiting groove is formed on the third positioning flange. A fourth limiting block is also installed in the sixth limiting groove, and the other end of the fourth limiting block is located in the eighth limiting groove. The third positioning flange is detachably sleeved on the upper end of the second positioning shaft.

[0011] A fourth installation groove is formed at the top of the third positioning shaft. A third convex block matching the fourth installation groove is installed at the bottom of the cover plate. The third positioning shaft and the cover plate are detachably installed. An installation hole is formed in the middle of the cover plate. An installation bolt is installed in the installation hole. One end of the installation bolt passes through the positioning shaft and is threadedly connected to the middle of the base.

[0012] The first positioning structure includes a first pin hole formed in the boss and a first positioning pin. The first positioning pin passes through the cabin body and the rear frame and is inserted into the first pin hole.

[0013] The second positioning structure includes positioning bolts and bolt holes. Extension parts are arranged outward at the eccentric parts of the first positioning flange, the second positioning flange, and the third positioning flange. The bolt holes are respectively formed in each extension part. The positioning bolts pass through the metal lugs and are in threaded connection with the bolt holes. The second positioning structure further includes a bolt handle for tightening / loosening the positioning bolts.

[0014] The third positioning structure includes a positioning groove formed in the annular flange and a second positioning pin. The second positioning pin passes through the front frame and is inserted into the positioning groove.

[0015] The fourth positioning structure includes a column. The column is detachably installed on the upper surface of the base. A support rod is arranged on one side of the column close to the positioning shaft. One end of the support rod far from the column passes through the bump of the cabin body and is inserted into the outer wall of the cabin body.

[0016] Compared with the prior art, the above technical solution brings the following technical effects:

[0017] In the present utility model, a boss is designed on the base. The cabin body and the rear frame are placed outside the boss. The upper surface of the base supports the cabin body and the rear frame. The outer wall of the boss restricts the horizontal movement of the cabin body and the rear frame. The first positioning structure restricts the circumferential rotation of the cabin body and the rear frame, so as to accurately position the cabin body and the rear frame. Then, the second positioning structure on the positioning flange accurately positions the metal lugs to ensure the accurate installation position of the metal lugs on the cabin body. The front frame is accurately positioned through the lower surface of the cover plate, the annular flange, and the third positioning structure to ensure the accurate installation position of the front frame on the cabin body. Finally, the fourth positioning structure accurately positions the bump of the cabin body to ensure the accurate installation position of the bump of the cabin body on the cabin body. This tooling solves the problem of difficult positioning during the gluing process of the front frame, the rear frame, and several metal lugs.

[0018] The positioning shaft of the present utility model includes a first positioning shaft, a second positioning shaft, and a third positioning shaft, adopting a split multi-layer structure. During the positioning process of the workpiece, it can be assembled from bottom to top, which can effectively solve the problem that the internal operation space of the cabin body is small, and the upper positioning flange hinders the positioning and assembly operation of the lower metal lugs. This tooling greatly reduces the difficulty of positioning and installation and significantly improves the efficiency of positioning and installation. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant accompanying drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural view of the present utility model with a cabin installed;

[0021] Figure 2 is a schematic structural view of the present utility model without a cabin installed;

[0022] Figure 3 is a schematic view of the overall structure of the positioning tooling;

[0023] Figure 4 is Figure 3 a cross-sectional view of;

[0024] Main element symbol description:

[0025] 1. Base; 2. Cabin; 3. Rear frame; 4. Boss; 41. First installation groove; 5. First positioning structure; 51. First pin hole; 52. First positioning pin; 6. Positioning shaft; 61. First positioning shaft; 611. Second installation groove; 62. Second positioning shaft; 621. First convex block; 622. Third installation groove; 63. Third positioning shaft; 631. Second convex block; 632. Fourth installation groove; 7. Positioning flange; 71. First positioning flange; 72. Second positioning flange; 73. Third positioning flange; 8. Metal ear; 9. Second positioning structure; 91. Positioning bolt; 92. Bolt hole; 93. Bolt handle; 10. Cover plate; 101. Third convex block; 102. Installation hole; 11. Front frame; 12. Annular flange; 13. Third positioning structure; 131. Positioning groove; 132. Second positioning pin; 14. Cabin convex block; 15. Fourth positioning structure; 151. Column; 152. Support rod; 16. Installation bolt. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] Such as Figures 1 to 4As shown in the figure, the cabin bonding positioning tooling of this embodiment includes a base 1. On the upper surface of the base 1, a boss 4 is installed for positioning the cabin 2 and the rear frame 3 in the horizontal direction. On the boss 4, a first positioning structure 5 is installed for circumferential positioning of the cabin 2 and the rear frame 3. A positioning shaft 6 is installed on the boss 4, and several positioning flanges 7 are installed on the positioning shaft 6. On the positioning flange 7, a second positioning structure 9 is installed for positioning the metal lug 8. A cover plate 10 is installed at the top of the positioning shaft 6. At the bottom of the cover plate 10, an annular flange 12 is provided for positioning the front frame 11 in the horizontal direction. On the annular flange 12, a third positioning structure 13 is installed for circumferential positioning of the front frame 11. On the upper surface of the base 1, a fourth positioning structure 15 is also installed for positioning the cabin bump 14.

[0032] The boss 4 is designed on the base 1, and the outer diameter of the boss 4 matches the outer diameter of the rear frame 3. The rear frame 3 is sleeved outside the boss 4, and the cabin 2 is sleeved outside the rear frame 3. The upper surface of the base 1 supports the cabin 2 and the rear frame 3. Due to the self-gravity of the cabin 2 and the rear frame 3, without external force, the up and down positions of the cabin 2 and the rear frame 3 are determined. The outer wall of the boss 4 restricts the horizontal movement of the cabin 2 and the rear frame 3, and the first positioning structure 5 restricts the circumferential rotation of the cabin 2 and the rear frame 3, thereby accurately positioning the cabin 2 and the rear frame 3. The positioning flange 7 is installed on the positioning shaft 6, and the metal lug 8 is accurately positioned through the second positioning structure 9 on the positioning flange 7 to ensure the accurate installation position of the metal lug 8 on the cabin 2. The cover plate 10 is covered and installed at the top of the positioning shaft 6. The up and down position of the front frame 11 is positioned through the lower surface of the cover plate 10. The front frame 11 is sleeved outside the annular flange 12, and the outer diameter of the annular flange 12 matches the inner diameter of the front frame 11. The annular flange 12 positions the front frame 11 in the horizontal direction, and the front frame 11 is accurately circumferentially positioned through the third positioning structure 13 to ensure the accurate installation position of the front frame 11 on the cabin 2. Finally, the cabin bump 14 is accurately positioned through the fourth positioning structure 15 to ensure the accurate installation position of the cabin bump 14 on the cabin 2. By designing this tooling, the problem of difficult positioning during the bonding process of the front frame 11, the rear frame 3, and several metal lugs 8 is solved.

[0033] In one specific embodiment, the positioning shaft 6 includes a first positioning shaft 61, a second positioning shaft 62, and a third positioning shaft 63. The lower end of the first positioning shaft 61 is detachably connected to the boss 4, the top end of the first positioning shaft 61 is detachably connected to the second positioning shaft 62, and the top end of the second positioning shaft 62 is detachably connected to the third positioning shaft 63. The positioning flange 7 includes a first positioning flange 71, a second positioning flange 72, and a third positioning flange 73. The first positioning flange 71 is detachably sleeved on the upper end of the first positioning shaft 61, and the second positioning flange 72 and the third positioning flange 73 are detachably sleeved on the second positioning shaft 62. The positioning flange 7 is detachably sleeved on the first positioning shaft 61 and the second positioning shaft 62, and the cover plate 10 is detachably installed on the top of the third positioning shaft 63.

[0034] The positioning shaft 6 includes a first positioning shaft 61, a second positioning shaft 62, and a third positioning shaft 63. The positioning flange 7 includes a first positioning flange 71, a second positioning flange 72, and a third positioning flange 73. The positioning shaft 6 adopts a split multi-layer structure. During the process of positioning the workpiece, the metal ear 8 at the lower end can be first positioned and installed from bottom to top, and then the second positioning shaft 62 and the second positioning flange 72 on the upper layer are installed. After the corresponding metal ear 8 is positioned and installed, the third positioning flange 73 and the third positioning shaft 63 are installed. Operating layer by layer in this way can effectively solve the problem that the internal operating space of the cabin 2 is small, and the upper third positioning flange 73 and / or the second positioning flange 72 hinder the positioning and assembly operation of the lower metal ear, greatly reducing the difficulty of positioning and installation and significantly improving the efficiency of positioning and installation.

[0035] Steps are provided on the first positioning shaft 61, the second positioning shaft 62, and the third positioning shaft 63. The first positioning flange 71, the second positioning flange 72, and the third positioning flange 73 are respectively placed on the corresponding steps. The first positioning flange 71 has a clearance fit with the first positioning shaft 61, and the first positioning flange 71 will not move horizontally on the first positioning shaft 61. The second positioning flange 72 and the third positioning flange 73 respectively have a clearance fit with the second positioning shaft 62, and the second positioning flange 72 and the third positioning flange 73 will not move horizontally on the second positioning shaft 62.

[0036] In one specific embodiment, a first installation groove 41 is formed in the middle of the upper surface of the boss 4. The inner diameter of the first installation groove 41 matches the outer diameter of the lower end of the first positioning shaft 61. The lower end of the first positioning shaft 61 is inserted into the first installation groove 41. A first limiting groove is formed at a position deviating from the center of the first installation groove 41. A first limiting block is installed in the first limiting groove. A second limiting groove matching the first limiting block is axially formed on the outer wall of the first positioning shaft 61. One end of the first limiting block is located in the first limiting groove, and the other end is located in the second limiting groove.

[0037] In one specific embodiment, a second mounting groove 611 is formed on the upper surface of the first positioning shaft 61. The second mounting groove 611 is a square groove, and the inner diameter of the opening of the second mounting groove 611 is larger than that of the bottom. A first convex block 621 matching the second mounting groove 611 is provided at the bottom of the second positioning shaft 62. The first positioning shaft 61 and the second positioning shaft 62 are detachably connected. A third limiting groove is formed at the top of the second limiting groove, and a second limiting block is provided in the third limiting groove. A fourth limiting groove matching the second limiting block is formed on the first positioning flange 71. A fifth limiting groove matching the second limiting block is formed at the lower end of the second positioning shaft 62. One end of the second limiting block is located in the third limiting groove, and the other end passes through the fourth limiting groove and extends into the fifth limiting groove.

[0038] In one specific embodiment, a third mounting groove 622 is formed at the top of the second positioning shaft 62. The third mounting groove 622 is a square groove, and the inner diameter of the opening of the third mounting groove 622 is larger than that of the bottom. A second convex block 631 matching the third mounting groove 622 is installed at the bottom of the third positioning shaft 63. The second positioning shaft 62 and the third positioning shaft 63 are detachably connected. A sixth limiting groove is formed on the outer wall of the upper end of the second positioning shaft 62. A seventh limiting groove is formed on the second positioning flange 72. A third limiting block is installed in the sixth limiting groove, and the other end of the third limiting block is located in the seventh limiting groove. The second positioning flange 72 is detachably sleeved on the upper end of the second positioning shaft 62. An eighth limiting groove is formed on the third positioning flange 73. A fourth limiting block is also installed in the sixth limiting groove, and the other end of the fourth limiting block is located in the eighth limiting groove. The third positioning flange 73 is detachably sleeved on the upper end of the second positioning shaft 62.

[0039] In one specific embodiment, a fourth mounting groove 632 is formed at the top of the third positioning shaft 63. The fourth mounting groove 632 is a square groove, and the inner diameter of the opening of the fourth mounting groove 632 is larger than that of the bottom. A third convex block 101 matching the fourth mounting groove 632 is installed at the bottom of the cover plate 10. The third positioning shaft 63 and the cover plate 10 are detachably installed. An installation hole 102 is formed in the middle of the cover plate 10, and an installation bolt 16 is installed in the installation hole 102. One end of the installation bolt 16 passes through the positioning shaft 6 and is threadedly connected to the middle of the base 1.

[0040] In one specific embodiment, the first positioning structure 5 includes a first pin hole 51 formed on the boss 4 and a first positioning pin 52. The first positioning pin 52 passes through the cabin body 2 and the rear frame 3 and is inserted into the first pin hole 51.

[0041] In one specific embodiment, the second positioning structure 9 includes a positioning bolt 91 and bolt holes 92. Extension portions are disposed outwardly at the eccentric positions of the first positioning flange 71, the second positioning flange 72, and the third positioning flange 73. The bolt holes 92 are respectively formed in each of the extension portions. The positioning bolt 91 passes through the metal lug 8 and is threadedly connected to the bolt holes 92. The second positioning structure 9 further includes a bolt handle 93 for tightening / loosening the positioning bolt 91.

[0042] The bolt handle 93 has a T-shaped structure, with a hand-held portion provided at the upper end and a screwing portion matching the positioning bolt 91 provided at the lower end. Since the cabin body 2 has a long cylindrical structure and the internal operation space is small, the operation is facilitated by the relatively long bolt handle 93.

[0043] In one specific embodiment, the third positioning structure 13 includes a positioning groove 131 formed in the annular flange 12 and a second positioning pin 132. The second positioning pin 132 passes through the front frame 11 and is inserted into the positioning groove 131.

[0044] In one specific embodiment, the fourth positioning structure 15 includes a column 151. The column 151 is detachably mounted on the upper surface of the base 1. A support rod 152 is disposed on one side of the column 151 close to the positioning shaft 6. One end of the support rod 152 away from the column 151 passes through the cabin bump 14 and is inserted into the outer wall of the cabin body 2.

[0045] The specific working principle is as follows: First, apply glue to the rear frame 3, front frame 11, metal lugs 8, and cabin bumps 14. Fit the rear frame 3 outside the boss 4, and fit the cabin 2 outside the rear frame 3 so that the cabin 2, rear frame 3, and the first pin hole 51 are aligned. The first positioning pin 52 sequentially passes through the cabin 2 and rear frame 3 and inserts into the first pin hole 51. Insert the lower end of the first positioning shaft 61 into the first installation groove 41, and perform circumferential positioning on the first positioning shaft 61 through the first limiting block, so that the relative position between the first positioning shaft 61 and the boss 4 is fixed. Fit the first positioning flange 71 on the first positioning shaft 61, and perform circumferential positioning on the first positioning flange 71 through the second limiting block. At this time, the bolt holes 92 on the first positioning flange 71 are aligned with the holes on the metal lug 8. The positioning bolt 91 passes through the metal lug 8 and is threaded with the bolt hole 92. Insert the second positioning shaft 62 into the top of the first positioning shaft 61, and perform circumferential positioning on the second positioning shaft 62 through the second limiting block. Fit the second positioning flange 72 on the second positioning shaft 62, and perform circumferential positioning on it through the third limiting block. Then position and install the metal lug 8 at the corresponding position of the second positioning flange 72. Next, install the third positioning flange 73, and perform circumferential positioning on it through the fourth limiting block. Install the metal lug 8 at the corresponding position of the third positioning flange 73. Insert the third positioning shaft 63 into the top of the second positioning shaft 62. Place the front frame 11 at the corresponding position of the cabin 2, connect the cover plate 10 and the base 1 through the installation bolt 16, and then perform circumferential positioning and installation on the front frame 11 through the second positioning pin 132. Finally, insert the support rod 152 into the cabin bump 14 and the outer wall of the cabin 2, so that the cabin bump 14 closely adheres to the outer wall of the cabin 2. After all the metal inserts are positioned and installed, move the workpiece and the tooling to the oven to dry, and finally remove the tooling sequentially from top to bottom.

[0046] For all components passing through the positioning shaft 6 of this tooling, the concentricity requirement is 0.05 - 0.1 mm; the components need to be flexible in disassembly and assembly, without jamming, and meet the assembly accuracy.

[0047] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0048] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments. As long as they meet the purpose of the present utility model, they should all be within the scope of protection required by the present utility model. For example: different combinations of each specific embodiment, different combinations of each distinguishing technical feature.

Claims

1. A positioning tool for bonding the cabin body, characterized in that It includes a base (1), on the upper surface of which there is a boss (4) for positioning the cabin body (2) and the rear frame (3) in the horizontal direction. On the boss (4), there is a first positioning structure (5) for circumferentially positioning the cabin body (2) and the rear frame (3). A positioning shaft (6) is installed on the boss (4), and several positioning flanges (7) are installed on the positioning shaft (6). On the positioning flange (7), there is a second positioning structure (9) for positioning the metal lug (8). A cover plate (10) is installed at the top of the positioning shaft (6). At the bottom of the cover plate (10), there is an annular flange (12) for positioning the front frame (11) in the horizontal direction. On the annular flange (12), there is a third positioning structure (13) for circumferentially positioning the front frame (11). On the upper surface of the base (1), there is also a fourth positioning structure (15) for positioning the cabin body bump (14).

2. The positioning tool for bonding the cabin body according to claim 1, wherein The positioning shaft (6) includes a first positioning shaft (61), a second positioning shaft (62) and a third positioning shaft (63). The lower end of the first positioning shaft (61) is detachably connected to the boss (4), the top end of the first positioning shaft (61) is detachably connected to the second positioning shaft (62), and the top end of the second positioning shaft (62) is detachably connected to the third positioning shaft (63). The positioning flange (7) includes a first positioning flange (71), a second positioning flange (72) and a third positioning flange (73). The first positioning flange (71) is detachably sleeved on the upper end of the first positioning shaft (61), and the second positioning flange (72) and the third positioning flange (73) are detachably sleeved on the second positioning shaft (62). The positioning flange (7) is detachably sleeved on the first positioning shaft (61) and the second positioning shaft (62), and the cover plate (10) is detachably installed at the top of the third positioning shaft (63).

3. The positioning tooling for cabin bonding according to claim 2, wherein, In the middle of the upper surface of the boss (4), there is a first installation groove (41). The lower end of the first positioning shaft (61) is inserted into the first installation groove (41). At a position deviating from the center of the first installation groove (41), there is a first limiting groove, and a first limiting block is installed in the first limiting groove. Along the axial direction on the outer wall of the first positioning shaft (61), there is a second limiting groove matching the first limiting block. One end of the first limiting block is located in the first limiting groove, and the other end is located in the second limiting groove.

4. The positioning tool for cabin bonding according to claim 3, characterized in that The upper surface of the first positioning shaft (61) is provided with a second installation groove (611). The bottom of the second positioning shaft (62) is provided with a first bump (621) that matches the second installation groove (611). The first positioning shaft (61) and the second positioning shaft (62) are detachably connected. A third limiting groove is opened at the top of the second limiting groove. A second limiting block is arranged in the third limiting groove. A fourth limiting groove that matches the second limiting block is opened on the first positioning flange (71). A fifth limiting groove that matches the second limiting block is opened at the lower end of the second positioning shaft (62). One end of the second limiting block is located in the third limiting groove, and the other end passes through the fourth limiting groove and extends into the fifth limiting groove.

5. The positioning tool for cabin bonding according to claim 4, characterized in that, The top of the second positioning shaft (62) is provided with a third installation groove (622). The bottom of the third positioning shaft (63) is provided with a second bump (631) that matches the third installation groove (622). The second positioning shaft (62) and the third positioning shaft (63) are detachably connected. A sixth limiting groove is opened on the outer wall of the upper end of the second positioning shaft (62). A seventh limiting groove is opened on the second positioning flange (72). A third limiting block is arranged in the sixth limiting groove, and the other end of the third limiting block is located in the seventh limiting groove. The second positioning flange (72) is detachably sleeved on the upper end of the second positioning shaft (62). An eighth limiting groove is opened on the third positioning flange (73). A fourth limiting block is also arranged in the sixth limiting groove, and the other end of the fourth limiting block is located in the eighth limiting groove. The third positioning flange (73) is detachably sleeved on the upper end of the second positioning shaft (62).

6. The positioning tool for cabin bonding according to claim 5, characterized in that, The top of the third positioning shaft (63) is provided with a fourth installation groove (632). The bottom of the cover plate (10) is provided with a third bump (101) that matches the fourth installation groove (632). The third positioning shaft (63) and the cover plate (10) are detachably installed. An installation hole (102) is opened in the middle of the cover plate (10). An installation bolt (16) is arranged in the installation hole (102). One end of the installation bolt (16) passes through the positioning shaft (6) and is threadedly connected to the middle of the base (1).

7. The positioning tool for cabin bonding according to claim 1, characterized in that The first positioning structure (5) includes a first pin hole (51) opened on the boss (4) and a first positioning pin (52). The first positioning pin (52) passes through the cabin body (2) and the rear frame (3) and is inserted into the first pin hole (51).

8. The positioning tool for bonding the cabin body according to claim 2, characterized in that, The second positioning structure (9) includes a positioning bolt (91) and a bolt hole (92). Extension parts are outwardly arranged at the eccentric positions of the first positioning flange (71), the second positioning flange (72), and the third positioning flange (73). The bolt holes (92) are respectively opened on each extension part. The positioning bolt (91) passes through the metal lug (8) and is threadedly connected to the bolt hole (92). The second positioning structure (9) further includes a bolt handle (93) for tightening / loosening the positioning bolt (91).

9. The positioning tool for bonding the cabin body according to claim 1, characterized in that, The third positioning structure (13) includes a positioning groove (131) formed in the annular flange (12) and a second positioning pin (132). The second positioning pin (132) passes through the front frame (11) and is inserted into the positioning groove (131).

10. The positioning tool for cabin bonding according to claim 1, characterized in that, The fourth positioning structure (15) includes a column (151). The column (151) is detachably mounted on the upper surface of the base (1). A support rod (152) is arranged on one side of the column (151) close to the positioning shaft (6). One end of the support rod (152) far from the column (151) passes through the cabin bump (14) and is inserted into the outer wall of the cabin (2).

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