Positioning top cover pre-installation centering table

Abstract

The utility model relates to the technical field of automobile body-in-white production and manufacturing, in particular to a positioning top cover pre-installation centering table which comprises a working table, a sliding plate is arranged on the working table, and the sliding plate is in sliding connection with the working table in the X direction. The first edge fixing assemblies are arranged in the X direction, the second edge fixing assemblies are arranged in the Y direction perpendicular to the X direction, the supporting assemblies are arranged in the Z direction, the number of the first edge fixing assemblies is two, the number of the second edge fixing assemblies is two, the number of the supporting assemblies is two, and one first edge fixing assembly, one second edge fixing assembly and one supporting assembly are arranged on the sliding plate; and the other group of the first edge fixing assembly, the second edge fixing assembly and the supporting assembly are respectively arranged on the workbench. The sliding plate is arranged on the working table, the first edge fixing assembly, the second edge fixing assembly and the supporting assembly are arranged on the working table and the sliding plate in the X direction, the Y direction and the Z direction respectively, and therefore the positions of the first edge fixing assembly, the second edge fixing assembly and the supporting assembly can be adjusted so as to adapt to automobile top covers of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile body-in-white production and manufacturing, and more specifically, to a positioning center table for pre-installing a roof cover. Background Technique

[0002] With the continuous penetration of new energy vehicles and the increase in the number of automobiles, major automobile manufacturers have put forward personalized and customized solutions in the vehicle manufacturing process, such as panoramic sunroofs and double sunroof structures for MPV models. The main approach is to introduce a switchable roof pre-installation platform, so that roofs of different sizes can be placed on the positioning center table for pre-installing the roof cover, facilitating the robot to pick up parts and enter the main body production line to splice into a body-in-white. During the production process of splicing the roof cover and the vehicle body, it is necessary to use the pre-installation platform to pre-install roofs of different sizes. It is convenient for the positioning gripper of the workstation robot to pick up parts and splice the body-in-white. The pre-installation platform itself can automatically identify the models and derivatives adapted to the vehicle model switch. It cooperates with the robot efficiently to complete the pre-installation of the roof cover and flows to the next process. Currently, the industry uses roofs of different vehicle models and different sizes, and separate workstations are established for hemming operations. In this way, the cost of a single workstation is extremely expensive, it occupies a large area, and there is a great waste in cutting models. It is not conducive to the healthy development of the automotive industry.

[0003] There is a Chinese invention, with the publication number CN114932366B, which discloses a precise positioning platform for automobile roof cover parts. It includes a base and a support frame fixed on the base; the support frame is a frame structure with one corner inclined downward along the X and Y directions; there is a Z-direction positioning structure on the support frame for Z-direction support of the roof cover parts to be positioned; the X-direction positioning structure includes an X-direction fixed limit structure located on one side of the lower end of the support frame in the X direction and an X-direction driving structure located on one side of the upper end of the support frame in the X direction; the X-direction driving structure is used to drive the roof cover parts to move along the X direction to one side of the lower end of the support frame in the X direction; the Y-direction positioning structure includes Y-direction driving structures located on both sides of the support frame in the Y direction; the Y-direction driving structures are used to drive the roof cover parts to move along the Y direction. The positioning platform of the present invention has a simple structure, precise positioning, and good adaptability, and can be widely applied to roof cover parts of various specifications and sizes.

[0004] In the above technical solution, only the position of the X-direction positioning structure can be driven to change, while the positions of the Y-direction positioning structure and the Z-direction support structure are fixed and cannot change the positioning position, making it difficult to meet different positioning requirements and match different vehicle models. And there is only a single Z-direction positioning structure, making it difficult to firmly fix the automobile roof cover in the Z direction. Content of the Utility Model

[0005] To solve the above technical problems, the present utility model provides a positioning top cover pre-installation alignment table. By providing a sliding plate on the workbench, an X-direction edge positioning component, a Y-direction edge positioning component, and a Z-direction support component are respectively arranged on the sliding plate on the workbench, thereby realizing the adjustment of the positions of the X-direction edge positioning component, the Y-direction edge positioning component, and the Z-direction support component to adapt to different specifications of automotive top covers.

[0006] To solve the above technical problems, the present utility model provides a positioning top cover pre-installation alignment table, including a workbench. A sliding plate is arranged on the workbench. The sliding plate is slidably connected to the workbench along the X direction. The alignment table further includes a first edge positioning component arranged along the X direction, a second edge positioning component arranged along the Y direction perpendicular to the X direction, and a support component arranged along the Z direction. Two sets of the first edge positioning component, the second edge positioning component, and the support component are provided respectively. One set of the first edge positioning component, the second edge positioning component, and the support component are respectively arranged on the sliding plate, and the other set of the first edge positioning component, the second edge positioning component, and the support component are respectively arranged on the workbench.

[0007] In this technical solution, the upper surface of the workbench is rectangular. The length direction of the workbench is the X direction, the width direction is the Y direction, and the direction perpendicular to the upper surface of the workbench is the Z direction. There are two sets of the first fixed-side assembly, the second fixed-side assembly and the support assembly, which are respectively installed on the workbench and the sliding plate. The positions of the first fixed-side assembly, the second fixed-side assembly and the support assembly installed on the workbench are fixed, while the positions of the first fixed-side assembly, the second fixed-side assembly and the support assembly installed on the sliding plate can be moved. The shape of the middle part of the car roof is relatively fixed, all being flat plate-like structures. The differences in the shape of the car roof generally appear at the head or the tail. The skylight on the car roof is generally also opened near the head. Therefore, for the car roof, the fixation requirements for the head and the tail are more necessary. The first fixed-side assembly, the second fixed-side assembly and the support assembly installed on the workbench are used to fix the head of the car roof. In car design, limited by the road width, the width of the car is relatively fixed. Therefore, the need for adjustment in the Y direction is not high. The main differences between cars of different sizes are reflected in the length of the car. Therefore, in order to match more different types of vehicles, each fixing component needs to have a large adjustment space in the X direction. There is a sliding plate arranged on the workbench. The sliding plate can slide on the workbench within a certain range in the X direction, thereby driving the first fixed-side assembly, the second fixed-side assembly and the support assembly installed on the sliding plate to move, so as to match the different X-direction length requirements of different car roofs. The first fixed-side assembly, the second fixed-side assembly and the support assembly can all move to play the role of relaxing and clamping the car roof, so as to achieve centering of the car roof. When fixing the car roof, first move the moving plate to a suitable position, then place the car roof on the workbench, and then start the first fixed-side assembly, the second fixed-side assembly and the support assembly to clamp the car roof and push the car roof to achieve centering, and then the robot grabs the car roof for processing.

[0008] Preferably, a first telescopic member is installed at one end of the workbench. The first telescopic member is arranged along the X direction of the workbench. The sliding plate is connected to the telescopic end of the first telescopic member. There are also multiple slide rails parallel to the first telescopic member arranged on the workbench. The slide rails are slidably connected to the sliding plate.

[0009] Preferably, the first fixed-side assembly includes a first support frame and a first abutting member for abutting against the edge of the car roof. The first abutting member is installed on the first support frame; the first support frame of one of the first fixed-side assemblies is installed on the sliding plate, and the first support frame of the other first fixed-side assembly is installed on the workbench.

[0010] Preferably, the first abutting member is a roller, and the first abutting member is rotatably installed on the first support frame.

[0011] Preferably, the second fixed-edge assembly includes a second telescopic member, a second support member, and a second abutting member for abutting against the edge of the car roof. The second telescopic member in one of the second fixed-edge assemblies is installed on the sliding plate, and the second telescopic member in the other second fixed-edge assembly is installed on the workbench. The second telescopic member includes two telescopic ends, and the two telescopic ends are arranged oppositely in the Y direction. The second support member is installed at the telescopic end of the second telescopic member, and the second abutting member is installed on the side of the upper end of the second support member facing the inner side of the workbench.

[0012] Preferably, the Z-direction support assembly includes a third telescopic member and a support frame. The third telescopic member of one group of the support assemblies is installed at one end of the upper surface of the workbench far from the sliding plate, and the third telescopic member of the other group of the support assemblies is installed on the sliding plate. The third telescopic member is perpendicular to the ground, and the support frame is installed at the telescopic end of the third telescopic member. The support frame is arranged in the Y direction.

[0013] Preferably, abutting strips are further provided at both ends of the support frame, and the length direction of the abutting strips is the same as the length direction of the support frame.

[0014] Preferably, a guiding member is further included. The guiding member is installed at one end of the upper surface of the workbench far from the sliding plate or on the upper surface of the sliding plate, and the top end of the guiding member inclines towards the outer side of the workbench.

[0015] Preferably, a support strip that can abut against the edge of the car roof is further installed on the guiding member, and the support strip is horizontally arranged.

[0016] Preferably, a clamping groove member is provided at the top corner of the end of the workbench far from the sliding plate. The upper surface of the clamping groove member has an inclined surface that inclines downward in the direction away from the sliding plate, and a plurality of parallel transverse clamping grooves are provided on the upper surface of the clamping groove member.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a sliding plate on the workbench, the position of the sliding plate on the workbench can be adjusted. By installing a set of first fixed-edge assemblies, second fixed-edge assemblies, and support assemblies on the sliding plate, and installing another set of first fixed-edge assemblies, second fixed-edge assemblies, and support assemblies on the workbench, the distance between different sets of first fixed-edge assemblies, second fixed-edge assemblies, and support assemblies can be adjusted by adjusting the position of the sliding plate on the workbench, so as to match car roofs of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the positioning top cover pre-installation alignment table of the present utility model;

[0019] Figure 2It is a three-dimensional view of the X-direction edge-fixing component of the pre-installation alignment table for the positioning top cover of the present utility model;

[0020] Figure 3 It is a three-dimensional view of the Y-direction edge-fixing component of the pre-installation alignment table for the positioning top cover of the present utility model;

[0021] Figure 4 It is a three-dimensional view of the Z-direction support component of the pre-installation alignment table for the positioning top cover of the present utility model;

[0022] Figure 5 It is a three-dimensional view of the guide member of the pre-installation alignment table for the positioning top cover of the present utility model;

[0023] Figure 6 It is a three-dimensional view of the card slot member of the pre-installation alignment table for the positioning top cover of the present utility model.

[0024] In the attached drawings: 1. Workbench; 2. Sliding plate; 3. First edge-fixing component; 4. Second edge-fixing component; 5. Support component; 6. First electric cylinder; 7. Guide member; 8. Card slot member; 11. Slide rail; 31. First support frame; 32. First abutting member; 41. Second electric cylinder; 42. Second support member; 43. Second abutting member; 51. Third electric cylinder; 52. Support frame; 71. Support bar; 81. Card slot; 521. Abutting bar. Detailed implementation manners

[0025] The attached drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; for better illustrating this embodiment, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The description of the positional relationship in the attached drawings is only for illustrative purposes and cannot be construed as a limitation of this patent.

[0026] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings, and are 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, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The following will further specifically describe the technical solutions of the present utility model through specific embodiments in conjunction with the attached drawings:

[0028] Embodiment 1

[0029] As shown Figure 1 in the figure, a positioning top cover pre-installation centering table includes a workbench 1. A sliding plate 2 is arranged on the workbench 1. The sliding plate 2 is slidably connected to the workbench 1 in the X direction. It further includes a first fixed-edge component 3 arranged in the X direction, a second fixed-edge component 4 arranged in the Y direction perpendicular to the X direction, and a support component 5 arranged in the Z direction. There are two sets of the first fixed-edge component 3, the second fixed-edge component 4, and the support component respectively. One set of the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 are respectively arranged on the sliding plate 2, and the other set of the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 are respectively arranged on the workbench 1. The upper surface of the workbench 1 is rectangular. The length direction of the workbench 1 is the X direction, the width direction is the Y direction, and the direction perpendicular to the upper surface of the workbench 1 is the Z direction. The first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 are all provided with two sets, which are respectively installed on the workbench 1 and the sliding plate 2. The positions of the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 installed on the workbench 1 are fixed, while the positions of the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 installed on the sliding plate 2 can be moved. The shape of the middle part of the car top cover is relatively fixed, all being flat plate-like structures. The differences in the shape of the car top cover generally appear at the head or the tail. The skylight on the car top cover is generally also opened at a position close to the head. Therefore, for the car top cover, the fixing requirements for the head and the tail are more necessary. The first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 installed on the workbench 1 are used to fix the head of the car top cover. In car design, limited by the road width, the width of the car is relatively fixed. Therefore, the adjustment requirement for the Y-direction position is not high. The main differences between cars of different sizes are reflected in the length of the car. Therefore, in order to match more different types of vehicles, each fixing component needs to have a large adjustment space in the X direction. A sliding plate 2 is arranged on the workbench 1. The sliding plate 2 can slide on the workbench 1 within a certain range in the X direction, thereby driving the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 installed on the sliding plate 2 to move, so as to match the different X-direction length requirements of different car top covers. The first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 can all move to play the role of relaxing and clamping the car top cover, realizing the centering of the car top cover. When fixing the car top cover, first move the moving plate to a suitable position, then place the car top cover on the workbench 1, and then start the first fixed-edge component 3, the second fixed-edge component 4, and the support component 5 to clamp the car top cover and push the car top cover to achieve centering, and then the robot grabs the car top cover for processing.

[0030] As shown Figure 1As shown in the figure, a first telescopic member 6 is installed at one end of the workbench 1. The first telescopic member 6 is arranged along the X direction of the workbench 1. The sliding plate 2 is connected to the telescopic end of the first telescopic member 6. A plurality of slide rails 11 parallel to the first telescopic member 6 are also provided on the workbench 1. The slide rails 11 are slidably connected to the sliding plate 2. The first telescopic member 6 is used to drive the sliding block 2 to move on the workbench 1 to adjust the position of the sliding block 2. A plurality of slide rails 11 are provided on the workbench 1, and the slide rails 11 are slidably connected to the sliding block 2, which can improve the stability of the sliding block 2 during movement and ensure that the sliding block 2 will not deviate in direction during movement, affecting the subsequent centering accuracy.

[0031] Embodiment 2

[0032] This embodiment is similar to the above Embodiment 1, except that, as Figure 2 shown, the first fixed-side assembly 3 includes a first support frame 31 and a first abutting member 32 for abutting against the edge of the car roof. The first abutting member 32 is installed on the first support frame 31; the first support frame 31 of one of the first fixed-side assemblies 3 is installed on the sliding plate 2, and the first support frame 31 of the other first fixed-side assembly 3 is installed on the workbench 1. During the process of clamping and centering the vehicle roof, in the X direction, only by relying on the movement of the sliding plate 2 can the distance between the two groups of first fixed-side assemblies 3 be changed, and the X-direction clamping and centering function of the car roof can be realized. Therefore, the first fixed-side assembly 3 does not need to be additionally provided with a driving assembly, and only the first support frames 31 in different groups of the first fixed-side assemblies 3 need to be respectively fixed on the upper workbench 1 and the sliding plate 2. A first abutting member 32 is provided on the first support frame 31 for abutting against the edge of the car roof.

[0033] As Figure 2 shown, the first abutting member 32 is a roller, and the first abutting member 32 is rotatably installed on the first support frame 31. The first centering assembly 3 realizes the centering in the X direction by making the first abutting member 32 abut against the edge of the car roof and then pushing the car roof to move. During the abutting process, the first abutting member 32 will inevitably collide with the car roof. By setting the first abutting member 32 as a roller and rotatably installing the first abutting member 32 on the first support frame 31, the energy generated during the collision can be converted into the kinetic energy of the first abutting member 32 itself rotating, reducing the harm caused by the collision to the car roof.

[0034] As Figure 3As shown in the figure, the second fixed-edge assembly 4 includes a second telescopic member 41, a second support member 42, and a second abutting member 43 for abutting against the edge of the car roof. The second telescopic member 41 in one of the second fixed-edge assemblies 4 is installed on the sliding plate 2, and the second telescopic member 41 in the other second fixed-edge assembly 4 is installed on the workbench 1. The second telescopic member 41 includes two telescopic ends, and the two telescopic ends are arranged opposite to each other in the Y direction. The second support member 42 is installed at the telescopic ends of the second telescopic member 41, and the second abutting member 43 is installed on the side of the upper end of the second support member 42 facing the inside of the workbench 1. The second telescopic member 41 has two telescopic ends, and the two telescopic ends can move in directions approaching or separating from each other. When centering is required, the car roof is placed between the two telescopic ends of the second telescopic member 41. The second telescopic member 41 is started, and the two telescopic ends of the second telescopic member 41 drive the second support member 42 and the second abutting member 43 towards the direction where the car roof is located, clamping the car roof and pushing the car roof towards the centering position in the Y direction.

[0035] As Figure 4 shown in the figure, the support assembly 5 includes a third telescopic member 51 and a support frame 52. The third telescopic member 51 of one group of support assemblies 5 is installed at one end of the upper surface of the workbench 1 away from the sliding plate 2, and the third telescopic member 51 of the other group of support assemblies 5 is installed on the sliding plate 2. The third telescopic member 51 is perpendicular to the ground, and the support frame 52 is installed at the telescopic end of the third telescopic member 51. The support frame 52 is arranged in the Y direction. When the car roof is placed on the workbench 1, since the overall structure of the car roof is not a flat surface, the upper surface of the workbench 1 cannot match the shape of the car roof 1. Therefore, it is necessary to lift the car roof off the ground. Two groups of support assemblies 5 are provided, which are respectively fixed on the workbench 1 and the sliding plate 2, and can respectively support the head and tail ends of the car roof. The Z-direction support assembly 5 is provided with a third electric cylinder 51, and the third electric cylinder 51 can drive the support frame 52 to move in the vertical direction to match the different heights at different positions of the car roof and lift the car roof off the ground.

[0036] As Figure 4 shown in the figure, abutting strips 521 are further provided at both ends of the support frame 52, and the length direction of the abutting strips 521 is the same as the length direction of the support frame 52. In order to avoid damaging the edge of the car roof, abutting strips 521 dedicated to abutting against the car roof are provided at both ends of the support frame 52, and the length direction of the abutting strips 521 is the same as the length direction of the support frame 52, so that the abutting strips can abut against the edges of car roofs with different widths, improving the versatility of the support assembly 5.

[0037] Embodiment 3

[0038] This embodiment is similar to the above Embodiment 1, except that, as Figure 1 , Figure 5As shown in the figure, it further includes a guide member 7. The guide member 7 is installed at one end of the workbench 1 away from the sliding plate 2 or on the sliding plate 2. The top end of the guide member 7 inclines towards the outside of the workbench 1. The guide member 7 has the function of guiding the car roof to be placed on the workbench 1. When the edge of the car roof is placed downward, if the position is offset, it will contact the top end of the guide member 7. And the top end of the guide member 7 inclines towards the outside of the workbench 1. As the car roof descends, under the resistance of the guide member 7, the car roof slides towards the inside of the workbench 1, realizing the guiding function.

[0039] As Figure 5 shown in the figure, a support bar 71 that can abut against the edge of the car roof is further installed on the guide member 7. The support bar 71 is horizontally arranged. The support bar 71 can be used to support the car roof and assist the X support assembly 5 to support the car roof.

[0040] As Figure 1 、 Figure 6 shown in the figure, a slot member 8 is provided at the top corner of the end of the workbench 1 away from the sliding plate 2. The upper surface of the slot member 8 is an inclined surface that inclines downward away from the sliding plate 2. Multiple parallel transverse slots 81 are provided on the upper surface of the slot member 8. After the car roof is placed, the front end of the car roof is caught in the transverse slots 81 on the slot member 8, so that the car roof is not likely to move after centering. The inclined surface of the upper surface of the slot member 8 that inclines downward just matches the structure of the front end of the car roof that bends downward.

[0041] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting 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 list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A positioning pre-installation alignment table for the top cover, characterized in that It includes a workbench (1), on which a sliding plate (2) is arranged. The sliding plate (2) is slidably connected to the workbench (1) in the X direction. It also includes a first fixed-edge component (3) arranged in the X direction, a second fixed-edge component (4) arranged in the Y direction perpendicular to the X direction, and a support component (5) arranged in the Z direction. There are two sets of the first fixed-edge component (3), the second fixed-edge component (4), and the support component respectively. One set of the first fixed-edge component (3), the second fixed-edge component (4), and the support component (5) are respectively arranged on the sliding plate (2), and the other set of the first fixed-edge component (3), the second fixed-edge component (4), and the support component (5) are respectively arranged on the workbench (1).

2. The pre-installation centering table for positioning the top cover according to claim 1, wherein One end of the workbench (1) is equipped with a first telescopic member (6). The first telescopic member (6) is arranged along the X direction of the workbench (1). The sliding plate (2) is connected to the telescopic end of the first telescopic member (6). There are also multiple slide rails (11) parallel to the first telescopic member (6) arranged on the workbench (1). The slide rails (11) are slidably connected to the sliding plate (2).

3. The pre-installation centering table for positioning the top cover according to claim 1, wherein, The first fixed-edge component (3) includes a first support frame (31) and a first abutting member (32) for abutting against the edge of the car roof. The first abutting member (32) is installed on the first support frame (31). The first support frame (31) of one of the first fixed-edge components (3) is installed on the sliding plate (2), and the first support frame (31) of the other first fixed-edge component (3) is installed on the workbench (1).

4. A pre-installation centering table for positioning the top cover according to claim 3, characterized in that The first abutting member (32) is a roller, and the first abutting member (32) is rotatably installed on the first support frame (31).

5. The pre-installation alignment table for positioning the top cover according to claim 1, characterized in that, The second fixed-edge component (4) includes a second telescopic member (41), a second support member (42), and a second abutting member (43) for abutting against the edge of the car roof. The second telescopic member (41) in one of the second fixed-edge components (4) is installed on the sliding plate (2), and the second telescopic member (41) in the other second fixed-edge component (4) is installed on the workbench (1). The second telescopic member (41) includes two telescopic ends, and the two telescopic ends are arranged opposite to each other in the Y direction. The second support member (42) is installed at the telescopic ends of the second telescopic member (41), and the second abutting member (43) is installed on the side of the upper end of the second support member (42) facing the inside of the workbench (1).

6. A positioning top cover pre-installation alignment table according to claim 1, characterized in that The support component (5) includes a third telescopic member (51) and a support frame (52). The third telescopic member (51) of one set of the support components (5) is installed at one end of the upper surface of the workbench (1) away from the sliding plate (2), and the third telescopic member (51) of the other set of the support components (5) is installed on the sliding plate (2). The third telescopic member (51) is perpendicular to the ground, and the support frame (52) is installed at the telescopic end of the third telescopic member (51). The support frame (52) is arranged in the Y direction.

7. The pre-installation centering table for positioning the top cover according to claim 6, characterized in that Both ends of the support frame (52) are further provided with abutting strips (521), and the length direction of the abutting strips (521) is the same as the length direction of the support frame (52).

8. A pre-installation centering table for positioning a top cover according to claim 1, characterized in that, It further includes a guide member (7), and the guide member (7) is installed at one end of the upper surface of the workbench (1) away from the sliding plate (2) or on the upper surface of the sliding plate (2), and the top end of the guide member (7) is inclined outward from the workbench (1).

9. The pre-installed centering table for positioning the top cover according to claim 8, characterized in that A support strip (71) that can abut against the edge of the car roof is further installed on the guide member (7), and the support strip (71) is horizontally arranged.

10. A pre-installation alignment table for positioning the top cover according to claim 1, characterized in that A clamping groove member (8) is provided at the vertex of the end of the workbench (1) away from the sliding plate (2). The upper surface of the clamping groove member (8) has an inclined surface that slopes downward away from the sliding plate (2), and a plurality of parallel transverse clamping grooves (81) are provided on the upper surface of the clamping groove member (8).

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