Automobile edge covering and material pressing structure

Abstract

The utility model relates to the technical field of automobile welding, in particular to an automobile edge covering and material pressing structure which comprises a base, a press-fit die and a material pressing assembly, the press-fit die comprises first positioning pieces arranged on the base in a diagonal mode, and the material pressing assembly comprises a material pressing base plate and second positioning pieces arranged on the material pressing base plate in a diagonal mode. According to the automobile edge covering material pressing structure, the first positioning piece and the second positioning piece are both arranged to be in a position-adjustable mode, so that when the material pressing assembly and the pressing die are assembled, the positions of the first positioning piece and the second positioning piece can be correspondingly adjusted according to actual conditions, the assembling accuracy of the material pressing assembly and the pressing die is guaranteed, and the production efficiency is improved. And meanwhile, the assembly difficulty caused by machining errors and measurement errors is reduced, the problem that interference is likely to be generated in the die assembly process of the material pressing assembly and the pressing die is solved, and therefore the accuracy of the relative positions of the material pressing assembly and the pressing die is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding, in particular to an automobile hemming pressure structure. Background Art

[0002] In an automobile hemming pressure structure, the main function of the pressure plate is to press the part during the hemming process to prevent the part from moving and deforming during the forming process. At the same time, the pressure plate can also play a role in positioning and shaping during the processing, improving the dimensional qualification rate of the formed part.

[0003] A door inner and outer panel hemming and pressing device and a hemming and pressing control method are disclosed in the patent document CN116393600A. The pressure plate fixture includes a pressure base plate, and the lower switching disk is installed at the outer center position of the pressure base plate; a plurality of pressure inserts are fixedly installed on the pressure base plate for closely fitting the door inner panel; two sets of adjustable positioning pin mechanism components are arranged inside the pressure base plate for realizing the reference positioning of the door inner panel; positioning and clamping connection blocks are respectively arranged at the four corner positions of the pressure base plate, and connecting plates are arranged on a pair of diagonal positioning and clamping connection blocks, and positioning pins and a first detection switch are arranged on the connecting plates; a second detection switch is also arranged inside the pressure base plate for detecting the fitting condition of the door inner panel. However, the above patent document does not disclose the adjustment structure between the positioning pin and the positioning pin seat. When the positioning pin and the positioning pin seat are assembled, interference is likely to occur, resulting in difficult assembly. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automobile hemming pressure structure to solve the problem that interference is likely to occur when the positioning pin in the existing automobile hemming pressure structure is assembled with the positioning pin seat, resulting in difficult assembly.

[0005] On the one hand, the utility model provides an automobile hemming pressure structure, which includes: a base; a pressing die for fixing the door inner panel, the pressing die includes two first positioning members diagonally arranged on the base, and the installation position of the first positioning member is adjustable; a pressure component for fixing the door outer panel, the pressure component includes a pressure base plate and two second positioning members diagonally arranged on the pressure base plate, the installation position of the second positioning member is adjustable, and the two first positioning members are inserted and matched with the two second positioning members one by one.

[0006] As an alternative technical solution of the hemming and blank holding structure for automobiles, the second positioning member includes a first adjusting plate, a second adjusting plate, and a first positioning structure. One end of the first adjusting plate is connected to the blank holding substrate. The first positioning structure is disposed on the first adjusting plate in a position-adjustable manner along a first direction. The second adjusting plate is disposed on the first adjusting plate, and two adjacent sides of the second adjusting plate are connected to the first positioning structure and are used for adjusting the position of the first positioning structure in a second direction and a third direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. The first positioning structure is in plug-in fit with the corresponding first positioning member.

[0007] As an alternative technical solution of the hemming and blank holding structure for automobiles, the first adjusting plate includes a connecting plate and a first adjusting member. One end of the connecting plate is connected to the blank holding substrate, and the other end of the connecting plate is connected to the first positioning structure. The first adjusting member is disposed between the connecting plate and the first positioning structure and is used for adjusting the position of the first positioning structure in the first direction.

[0008] As an alternative technical solution of the hemming and blank holding structure for automobiles, the first adjusting member includes a plurality of gaskets with different thicknesses, and the plurality of gaskets with different thicknesses can be alternatively disposed between the connecting plate and the first positioning structure; or, the first adjusting member includes a plurality of gaskets, and a part of the plurality of gaskets is disposed between the connecting plate and the first positioning structure.

[0009] As an alternative technical solution of the hemming and blank holding structure for automobiles, the second adjusting plate includes a first adjusting block, a second adjusting block, a second adjusting member, and a third adjusting member. The first adjusting block and the second adjusting block are both disposed on the first adjusting plate, and the first adjusting block and the second adjusting block are perpendicularly connected. One side of the first adjusting block is connected to the first positioning structure. The second adjusting member is disposed between one side of the first adjusting block and the first positioning structure and is used for adjusting the position of the first positioning structure in the second direction. The other side of the second adjusting block adjacent to the first positioning structure is connected, and the third adjusting member is disposed between the other side of the second adjusting block adjacent to the first positioning structure and is used for adjusting the position of the first positioning structure in the third direction.

[0010] As an alternative technical solution of the hemming and blank holding structure for automobiles, the first positioning member includes a positioning seat, a third adjusting plate, a fourth adjusting plate, and a second positioning structure. The third adjusting plate is connected to the positioning seat. The second positioning structure is disposed on the third adjusting plate in a position-adjustable manner along the first direction. The fourth adjusting plate is disposed on the positioning seat, and two adjacent sides of the fourth adjusting plate are connected to the second positioning structure and are used for adjusting the position of the second positioning structure in the second direction and the third direction. The first positioning structure is in plug-in fit with the second positioning structure.

[0011] As an alternative technical solution for the edge hemming and blank holding structure of an automobile, the first positioning structure includes a first positioning block and a positioning pin arranged on the first positioning block. The other end of the first adjustment plate is connected to the first positioning block. The second adjustment plate is arranged on the first adjustment plate and is connected to two adjacent sides of the first positioning block. The second positioning structure includes a second positioning block and a positioning hole arranged on the second positioning block. The third adjustment plate is connected to the second positioning block. The fourth adjustment plate is arranged on the positioning seat and is connected to two adjacent sides of the second positioning block. The positioning pin can be inserted into the positioning hole.

[0012] As an alternative technical solution for the edge hemming and blank holding structure of an automobile, the depth H of the positioning pin inserted into the positioning hole satisfies H≥5mm.

[0013] As an alternative technical solution for the edge hemming and blank holding structure of an automobile, the blank holding assembly further includes blank holding inserts arranged on both sides of the blank holding base plate and extension blocks arranged on the blank holding inserts. The blank holding inserts can be attached to the outer panel of the vehicle door, and the extension blocks can be connected to an external structure to position the outer panel of the vehicle door.

[0014] As an alternative technical solution for the edge hemming and blank holding structure of an automobile, the edge hemming and blank holding structure of the automobile includes a setscrew and a positioning plate and a connecting shaft connected to each other. The extension block has a first mounting hole and a second mounting hole that are perpendicular to each other and communicate with each other. The connecting shaft passes through the first mounting hole, and the setscrew is in threaded cooperation with the second mounting hole and can press against the connecting shaft.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides an edge hemming and blank holding structure for an automobile. The edge hemming and blank holding structure includes a base, a pressing die, and a blank holding assembly. The pressing die includes two first positioning members diagonally arranged on the base, and the first positioning members are arranged to be position-adjustable; the blank holding assembly includes a blank holding base plate and two second positioning members diagonally arranged on the blank holding base plate, and the second positioning members are arranged to be position-adjustable. The positions between the pressing die and the blank holding assembly can be positioned by the insertion and cooperation of the first positioning members and the second positioning members. By using the edge hemming and blank holding structure of the present utility model, both the first positioning members and the second positioning members are arranged in a position-adjustable form. In this way, when the blank holding assembly and the pressing die are assembled, the positions of the first positioning members and the second positioning members can be adjusted accordingly according to the actual situation, ensuring the accuracy of the assembly of the blank holding assembly and the pressing die. At the same time, the assembly difficulty caused by machining errors and measurement errors is reduced, and the problem of easy interference during the die closing process of the blank holding assembly and the pressing die is eliminated, thereby further ensuring the accuracy of the relative positions of the blank holding assembly and the pressing die. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the edge hemming and blank holding structure for an automobile in an embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the blank holding component in the embodiment of the present utility model;

[0019] Figure 3 It is a schematic diagram of a partial structure of the blank holding component in the embodiment of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the first positioning member in the embodiment of the present utility model;

[0021] Figure 5 It is a schematic structural diagram of the blank holding insert in the embodiment of the present utility model.

[0022] In the figure:

[0023] 1. Base; 2. Pressing die; 21. First positioning member; 211. Positioning seat; 212. Third adjusting plate; 213. Fourth adjusting plate; 214. Second positioning structure; 2141. Second positioning block; 2142. Positioning hole; 3. Blank holding component; 31. Blank holding substrate; 32. Second positioning member; 321. First adjusting plate; 3211. Connecting plate; 322. Second adjusting plate; 3221. First adjusting block; 3222. Second adjusting block; 323. First positioning structure; 3231. First positioning block; 3232. Positioning pin; 33. Blank holding insert; 34. Extension block; 341. First mounting hole; 342. Second mounting hole. Specific embodiments

[0024] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; 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. 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.

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0028] Such as Figures 1 to 5As shown in the figure, this embodiment provides an edge pressing structure for an automobile. The edge pressing structure for an automobile includes a base 1, a pressing die 2, and a blank holding component 3. The pressing die 2 includes two first positioning members 21 diagonally arranged on the base 1, and the first positioning members 21 are arranged with adjustable positions; the blank holding component 3 includes a blank holding substrate 31 and two second positioning members 32 diagonally arranged on the blank holding substrate 31, and the second positioning members 32 are arranged with adjustable positions. Through the insertion fit of the first positioning members 21 and the second positioning members 32, the positions between the pressing die 2 and the blank holding component 3 can be positioned. At the same time, when the blank holding component 3 and the pressing die 2 are used in combination, the inner and outer panels of the car door can be fixed. With the edge pressing structure for an automobile of the present utility model, both the first positioning members 21 and the second positioning members 32 are arranged in an adjustable form. In this way, when the blank holding component 3 and the pressing die 2 are assembled, the positions of the first positioning members 21 and the second positioning members 32 can be adjusted accordingly according to the actual situation, ensuring the accuracy of the assembly of the blank holding component 3 and the pressing die 2. At the same time, the assembly difficulty caused by processing errors and measurement errors is reduced, and the problem of easy interference between the blank holding component 3 and the pressing die 2 during the mold closing process is eliminated, thereby further ensuring the accuracy of the relative positions of the blank holding component 3 and the pressing die 2.

[0029] In order to realize the position adjustment of the second positioning member 32, one of the second positioning members 32 in this embodiment includes a first adjustment plate 321, a second adjustment plate 322, and a first positioning structure 323. One end of the first adjustment plate 321 is connected to the blank holding substrate 31, and the first positioning structure 323 can be arranged on the first adjustment plate 321 with adjustable position along the first direction. In this way, the position adjustment of the first positioning structure 323 in one direction is realized; since the second adjustment plate 322 is arranged on the first adjustment plate 321 and the two adjacent sides of the second adjustment plate 322 and the first positioning structure 323 are connected, the position of the first positioning structure 323 in the second direction and the third direction can be adjusted. The first direction, the second direction, and the third direction are perpendicular to each other in pairs, and the first positioning structure 323 is inserted and matched with the corresponding first positioning member 21. With such a setting, the first positioning structure 323 is satisfied to be able to be adjusted in 3 directions, and the dimensional deviation caused by processing and assembly errors is eliminated.

[0030] Specifically, the first adjustment plate 321 includes a connecting plate 3211 and a first adjusting member. One end of the connecting plate 3211 is connected to the blank holding substrate 31, and the other end of the connecting plate 3211 is connected to the first positioning structure 323. The first adjusting member can be arranged between the connecting plate 3211 and the first positioning structure 323. In this way, the position of the first adjusting member in the first direction can be adjusted, and further the purpose of adjusting the position of the first positioning structure 323 in the first direction is realized.

[0031] Further, the first adjusting member includes a plurality of spacers with different thicknesses, and the plurality of spacers with different thicknesses can be alternatively disposed between the connecting plate 3211 and the first positioning structure 323; or, the first adjusting member includes a plurality of spacers, and a part of the plurality of spacers is disposed between the connecting plate 3211 and the first positioning structure 323. By adopting these two methods, the purpose of adjusting the position of the second limiting block 52 in the first direction is achieved by using a plurality of spacers with different thicknesses or a plurality of spacers with the same thickness.

[0032] In this embodiment, the second adjusting plate 322 includes a first adjusting block 3221, a second adjusting block 3222, a second adjusting member and a third adjusting member. The first adjusting block 3221 and the second adjusting block 3222 are both disposed on the first adjusting plate 321, and the first adjusting block 3221 and the second adjusting block 3222 are perpendicularly connected. The first adjusting block 3221 is connected to a side edge of the first positioning structure 323, and the second adjusting member is disposed between the first adjusting block 3221 and a side edge of the first positioning structure 323, so that the second adjusting member can adjust the position of the first positioning structure 323 in the second direction; similarly, the second adjusting block 3222 is connected to another adjacent side edge of the first positioning structure 323, and the third adjusting member is disposed between the second adjusting block 3222 and another adjacent side edge of the first positioning structure 323, so that the third adjusting member can adjust the position of the first positioning structure 323 in the third direction. With this setting form, the adjustment of the position of the first positioning structure 323 in the second direction and the third direction can be achieved.

[0033] Specifically, the structures of the second adjusting member and the third adjusting member are the same as that of the first adjusting member, which are also: the second adjusting member includes a plurality of spacers with different thicknesses, and the plurality of spacers with different thicknesses can be alternatively disposed between the first adjusting block 3221 and a side edge of the first positioning structure 323; or, the second adjusting member includes a plurality of spacers, and a part of the plurality of spacers is disposed between the first adjusting block 3221 and a side edge of the first positioning structure 323; the third adjusting member includes a plurality of spacers with different thicknesses, and the plurality of spacers with different thicknesses can be alternatively disposed between the second adjusting block 3222 and another adjacent side edge of the first positioning structure 323; or, the third adjusting member includes a plurality of spacers, and a part of the plurality of spacers is disposed between the second adjusting block 3222 and another adjacent side edge of the first positioning structure 323, so as to achieve the purpose of adjusting the position of the first positioning structure 323 in the second direction and the third direction.

[0034] Such as Figure 4As shown in the figure, in order to adjust the position of the first positioning member 21, the first positioning member 21 in this embodiment includes a positioning seat 211, a third adjustment plate 212, a fourth adjustment plate 213, and a second positioning structure 214. The third adjustment plate 212 is connected to the positioning seat 211. The second positioning structure 214 is disposed on the third adjustment plate 212 with adjustable position along the first direction. The fourth adjustment plate 213 is disposed on the positioning seat 211. Two adjacent sides of the fourth adjustment plate 213 are connected to the second positioning structure 214, and the position of the second positioning structure 214 in the second direction and the third direction can be adjusted. With such a setting, the position adjustment of the first positioning member 21 in the first direction, the second direction, and the third direction can be achieved. Among them, the first positioning structure 323 can be inserted and matched with the second positioning structure 214, so as to achieve the purpose of limiting the position between the pressing die 2 and the blank holding assembly 3.

[0035] It should be noted that the structure of the third adjustment plate 212 is the same as that of the first adjustment plate 321, and the structure of the fourth adjustment plate 213 is the same as that of the second adjustment plate 322, which will not be elaborated here.

[0036] Specifically, the first positioning structure 323 includes a first positioning block 3231 and a positioning pin 3232 disposed on the first positioning block 3231. The other end of the first adjustment plate 321 is connected to the first positioning block 3231. The second adjustment plate 322 is disposed on the first adjustment plate 321. Two adjacent sides of the second adjustment plate 322 are connected to the first positioning block 3231. The second positioning structure 214 includes a second positioning block 2141 and a positioning hole 2142 disposed on the second positioning block 2141. The third adjustment plate 212 is connected to the second positioning block 2141. The fourth adjustment plate 213 is disposed on the positioning seat 211. Two adjacent sides of the fourth adjustment plate 213 are connected to the second positioning block 2141. The positioning pin 3232 can be inserted into the positioning hole 2142, so as to realize the connection between the first positioning structure 323 and the second positioning structure 214.

[0037] Alternatively, the first positioning structure 323 includes a first positioning block 3231 and a positioning hole 2142 disposed on the first positioning block 3231. The second positioning structure 214 includes a second positioning block 2141 and a positioning pin 3232 disposed on the second positioning block 2141. With the above structural setting, the purpose of connecting the first positioning structure 323 and the second positioning structure 214 can also be achieved.

[0038] Furthermore, the depth H of inserting the positioning pin 3232 into the positioning hole 2142 is limited within the numerical range of H≥5mm, which can ensure the stability of the connection between the first positioning structure 323 and the second positioning structure 214.

[0039] Specifically, the blank holding component 3 further includes blank holding inserts 33 disposed on both sides of the blank holding substrate 31 and extension blocks 34 disposed on the blank holding inserts 33. The provision of the blank holding inserts 33 can ensure the fit with the outer panel of the vehicle door; the provision of the extension blocks 34 can connect to the external structure, thereby achieving the purpose of positioning the outer panel of the vehicle door.

[0040] Optionally, the blank holding inserts 33 and the extension blocks 34 are of an integrally formed structure, which is convenient for processing.

[0041] In this embodiment, the hemming blank holding structure of the vehicle includes setscrews and a positioning plate and a connecting shaft connected to each other. The extension block 34 has a first mounting hole 341 and a second mounting hole 342 that are perpendicular to each other and communicate with each other. With such a setting, the connecting shaft can be inserted into the first mounting hole 341, and through the screw-thread fit of the setscrew and the second mounting hole 342, the connecting shaft can be tightened, thereby fixing the positioning plate. The provision of the positioning plate can play a role in positioning the outer panel of the vehicle door.

[0042] Specifically, the extension block 34 can be used as a detection reference for the pressing tool. Compared with the original method of only detecting the profile of the pressing tool, the measurement accuracy of the pressing tool is improved, and the fit between the pressing tool and the inner and outer panels of the vehicle door is ensured; the extension unit of the pressing tool of the blank holding component can connect a profiling block made of nylon as a reference surface to adjust the relative positions of the inner and outer panels of the vehicle door.

[0043] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A car edge pressing structure, characterized in that: include: Base (1); A pressing mold (2), the pressing mold (2) being used to fix the inner panel of a vehicle door, the pressing mold (2) comprising two first positioning members (21) arranged diagonally on the base (1), and the setting positions of the first positioning members (21) are adjustable; A pressing assembly (3) is used to fix a vehicle door outer panel, the pressing assembly (3) comprises a pressing substrate (31) and two second positioning members (32) diagonally arranged on the pressing substrate (31), the setting position of the second positioning members (32) is adjustable, and the two first positioning members (21) and the two second positioning members (32) are plugged in and matched one by one.

2. The automobile edge pressing structure according to claim 1, characterized in that: The second positioning member (32) comprises a first adjustment plate (321), a second adjustment plate (322) and a first positioning structure (323); one end of the first adjustment plate (321) is connected to the pressing substrate (31); the first positioning structure (323) is adjustably arranged on the first adjustment plate (321) along a first direction; the second adjustment plate (322) is arranged on the first adjustment plate (321); the second adjustment plate (322) and two adjacent sides of the first positioning structure (323) are connected and are used to adjust the position of the first positioning structure (323) in the second direction and the third direction; the first direction, the second direction and the third direction are perpendicular to each other; the first positioning structure (323) and the corresponding first positioning member (21) are plug-fitted.

3. The automobile hemming pressing structure according to claim 2, characterized in that: The first adjustment plate (321) includes a connecting plate (3211) and a first adjusting member, one end of the connecting plate (3211) is connected to the pressing substrate (31), and the other end of the connecting plate (3211) is connected to the first positioning structure (323), and the first adjusting member is arranged between the connecting plate (3211) and the first positioning structure (323), and is used to adjust the position of the first positioning structure (323) in the first direction.

4. The automobile hemming pressing structure according to claim 3 is characterized in that: The first adjusting member includes a plurality of gaskets of different thicknesses, and the plurality of gaskets of different thicknesses can be selectively arranged between the connecting plate (3211) and the first positioning structure (323); or, the first adjusting member includes a plurality of gaskets, and a portion of the plurality of gaskets is arranged between the connecting plate (3211) and the first positioning structure (323).

5. The automobile hemming pressing structure according to claim 2, characterized in that: The second adjustment plate (322) comprises a first adjustment block (3221), a second adjustment block (3222), a second adjustment member and a third adjustment member. The first adjustment block (3221) and the second adjustment block (3222) are both arranged on the first adjustment plate (321). The first adjustment block (3221) and the second adjustment block (3222) are vertically connected. The first adjustment block (3221) is connected to a side edge of the first positioning structure (323). The second adjustment member is arranged between the first adjustment block (3221) and a side edge of the first positioning structure (323) and is used to adjust the position of the first positioning structure (323) in the second direction. The second adjustment block (3222) is connected to another side edge adjacent to the first positioning structure (323). The third adjustment member is arranged between the second adjustment block (3222) and another side edge adjacent to the first positioning structure (323) and is used to adjust the position of the first positioning structure (323) in the third direction.

6. The automobile hemming pressing structure according to claim 2, characterized in that: The first positioning member (21) comprises a positioning seat (211), a third adjustment plate (212), a fourth adjustment plate (213) and a second positioning structure (214); the third adjustment plate (212) is connected to the positioning seat (211); the second positioning structure (214) is adjustably arranged on the third adjustment plate (212) along the first direction; the fourth adjustment plate (213) is arranged on the positioning seat (211); two adjacent sides of the fourth adjustment plate (213) and the second positioning structure (214) are connected and used for adjusting the position of the second positioning structure (214) in the second direction and the third direction; the first positioning structure (323) and the second positioning structure (214) are plug-fitted.

7. The automobile hemming pressing structure according to claim 6, characterized in that: The first positioning structure (323) includes a first positioning block (3231) and a positioning pin (3232) arranged on the first positioning block (3231); the other end of the first adjustment plate (321) is connected to the first positioning block (3231); the second adjustment plate (322) is connected to two adjacent sides of the first positioning block (3231); the second positioning structure (214) includes a second positioning block (2141) and a positioning hole (2142) arranged on the second positioning block (2141); the third adjustment plate (212) is connected to the second positioning block (2141); the fourth adjustment plate (213) is connected to two adjacent sides of the second positioning block (2141); and the positioning pin (3232) can be inserted into the positioning hole (2142).

8. The automobile hemming pressing structure according to claim 7, characterized in that: The depth of the positioning pin (3232) inserted into the positioning hole (2142) is H, and H is ≥ 5 mm.

9. The automobile hemming pressing structure according to claim 1, characterized in that: The pressing assembly (3) further comprises pressing inserts (33) arranged on both sides of the pressing base plate (31) and expansion blocks (34) arranged on the pressing inserts (33); the pressing inserts (33) can be fitted with the vehicle door outer panel, and the expansion blocks (34) can be connected to an external structure to position the vehicle door outer panel.

10. The automobile hemming pressing structure according to claim 9, characterized in that: The automobile hemming pressing structure comprises a top screw and a mutually connected positioning plate and a connecting shaft, the expansion block (34) has a first mounting hole (341) and a second mounting hole (342) which are perpendicular to each other and connected, the connecting shaft penetrates the first mounting hole (341), and the top screw and the second mounting hole (342) are threadedly matched and can press against the connecting shaft.

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