Auxiliary installation device and method for automobile tailgate

Abstract

This invention discloses an auxiliary installation device for a car tailgate, comprising a template, a first positioning mechanism disposed on the template and used for positioning on the side panel of the vehicle body, a second positioning mechanism disposed on the template and used for contacting the side panel of the vehicle body, a detection mechanism disposed on the template and used for detecting the gap surface difference between the side panel of the vehicle body, the tailgate, and the taillights, and a third positioning mechanism disposed on the template and used for positioning the Z-axis position of the tailgate. The auxiliary installation device for a car tailgate of this invention has a relatively simple structure, is easy to manufacture and use, has low manufacturing cost, and is convenient to operate. This invention also discloses a method for installing a car tailgate.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to an auxiliary installation device and method for a car tailgate. Background Technology

[0002] With the rapid development of the automotive industry and the continuous improvement of automobile manufacturing standards, people have increasingly higher requirements for the appearance quality of automobiles. However, there are many factors that affect the appearance quality of automobiles. In addition to the stamping quality of the outer surface parts of the car body, the flatness of the matching gaps between various components is becoming an increasingly important factor affecting the appearance quality of the car body, and the matching assembly of the four doors and two hoods is of paramount importance.

[0003] In the existing technology, the taillight periphery gap surface difference detection and tailgate assembly positioning device requires two sets of headlight simulation block fixtures and one set of tailgate fixtures, which are costly and time-consuming to manufacture and are not suitable for the trial production stage where low cost, short cycle and high precision are required.

[0004] Chinese Patent Application No. 201811056534.0 discloses a tailgate mounting limit device, including a base plate, a mounting surface on the base plate that fits and supports the inner side of the tailgate, a taillight contour block on the side near the mounting surface, and a positioning pin on the base plate that is positioned on the vehicle body.

[0005] The aim is to provide an improved auxiliary mounting device for a car tailgate, particularly regarding its ease of manufacture and use. Summary of the Invention

[0006] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides an auxiliary mounting device for a car tailgate, designed to facilitate manufacturing and use.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an auxiliary installation device for a car tailgate, including a template, a first positioning mechanism disposed on the template and used for positioning on the side of the vehicle body, a second positioning mechanism disposed on the template and used for contacting the side of the vehicle body, a detection mechanism disposed on the template and used for detecting the gap surface difference between the side of the vehicle body, the tailgate and the taillight, and a third positioning mechanism disposed on the template and used for positioning the Z-direction position of the tailgate.

[0008] The first positioning mechanism is configured to position the Y and Z directions of the template. The first positioning mechanism includes positioning pins, and at least two positioning pins are provided. Positioning holes for inserting the positioning pins are provided on the side panel of the vehicle body.

[0009] The first positioning mechanism further includes a pin positioning block for contacting the side panel of the vehicle body. The positioning pin is disposed on the pin positioning block, and the pin positioning block is connected to the mold plate through an end connecting mechanism. The distance between the pin positioning block and the mold plate is adjustable.

[0010] The second positioning mechanism is configured to position the X-axis position of the template. The second positioning mechanism includes side positioning blocks, and multiple side positioning blocks are provided.

[0011] Magnets are installed on the side positioning block.

[0012] The third positioning mechanism includes a tailgate positioning block for contacting the tailgate and for providing support to the tailgate.

[0013] The detection mechanism includes multiple detection positioning blocks.

[0014] The detection positioning block is connected to the template through a side connecting mechanism, and the distance between the detection positioning block and the template is adjustable.

[0015] The pin seat positioning block is provided with a limiting boss, and the positioning pin is provided with a limiting groove that cooperates with the limiting boss at the position corresponding to the limiting boss.

[0016] The present invention also provides a method for installing a car tailgate, using the aforementioned car tailgate auxiliary installation device, and including the following steps:

[0017] S1. Install the auxiliary mounting device for the rear tailgate of the car onto the side panel of the vehicle body;

[0018] S2. Place the rear door to be assembled on the third positioning mechanism;

[0019] S3. Adjust the gap between the tailgate and the auxiliary installation device of the tailgate;

[0020] S4. After the gap and surface difference are adjusted to meet the requirements, assemble the rear door.

[0021] The auxiliary installation device for the rear door of a car of the present invention has a relatively simple structure, is easy to manufacture and use, has low manufacturing cost, and is convenient to operate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an auxiliary installation device for a car tailgate provided in an embodiment of this disclosure;

[0023] Figure 2 This is an overall front view of an auxiliary installation device for a car tailgate provided in an embodiment of this disclosure;

[0024] Figure 3This is an overall top view of an auxiliary installation device for a car tailgate provided in an embodiment of this disclosure;

[0025] Figure 4 This is an overall left view of an auxiliary mounting device for a car tailgate provided in an embodiment of this disclosure;

[0026] Figure 5 This is an assembly drawing of an auxiliary mounting device for a car tailgate and a car body, provided in an embodiment of this disclosure;

[0027] The markings in the above figures are all:

[0028] 1. Profile plate; 2. First connecting block; 3. Second connecting block; 4. First detection and positioning block; 5. Fourth connecting block; 6. Fifth connecting block; 7. First pin seat positioning block; 8. Rear door positioning block; 9. Sixth connecting block; 10. Seventh connecting block; 11. Eighth connecting block; 12. Second pin seat positioning block; 13. Ninth connecting block; 14. Second detection and positioning block; 15. Third detection and positioning block; 16. Fourth detection and positioning block; 17. Tenth connecting block; 18. Eleventh connecting block; 19. First side panel positioning block; 20. Second side panel positioning block; 21. Third side panel positioning block; 22. Fourth side panel positioning block; 23. Fifth detection and positioning block; 24. Twelfth connecting block; 25. Sixth detection and positioning block; 26. Thirteenth connecting block; 41. First positioning pin; 42. Second positioning pin; 71. Vehicle body side panel; 72. Rear door. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figures 1 to 5 As shown, the present invention provides an auxiliary installation device for a car tailgate, including a template 1, a first positioning mechanism disposed on the template 1 and used for positioning on the side panel of the vehicle body, a second positioning mechanism disposed on the template 1 and used for contacting the side panel of the vehicle body, a detection mechanism disposed on the template 1 and used for detecting the gap surface difference between the side panel of the vehicle body, the tailgate and the taillight, and a third positioning mechanism disposed on the template 1 and used for positioning the Z-direction (vertical direction of the car) position of the tailgate.

[0033] Specifically, such as Figures 1 to 5 As shown, the first positioning mechanism is configured to position the Y-axis (width direction of the vehicle) and Z-axis positions of the template 1. The first positioning mechanism includes positioning pins, and at least two positioning pins are provided. Positioning holes for inserting the positioning pins are provided on the side of the vehicle body. The number of positioning holes is the same as the number of positioning pins. The positioning pins are distributed at both ends of the template 1.

[0034] In this embodiment, two positioning pins are provided, namely a first positioning pin 41 and a second positioning pin 42. The axes of the first positioning pin 41 and the second positioning pin 42 are parallel. The first positioning pin 41 and the second positioning pin 42 are distributed at both ends of the length direction of the mold plate 1. The first positioning pin 41 and the second positioning pin 42 are used to position the device in the Y and Z directions on the side of the vehicle body. The first positioning pin 41 and the second positioning pin 42 are used to insert and cooperate with the positioning holes on the upper and lower sides of the side of the vehicle body to ensure accurate positioning.

[0035] like Figures 1 to 5 As shown, to facilitate the installation and fixing of the positioning pins, the first positioning mechanism also includes a pin seat positioning block for contacting the side panel of the vehicle body. Each positioning pin is respectively set on a pin seat positioning block, and the pin seat positioning block is connected to the template 1 through an end connecting mechanism. The distance between the pin seat positioning block and the template 1 is adjustable. Two pin seat positioning blocks are provided, namely the first pin seat positioning block 7 and the second pin seat positioning block 12. The first positioning pin 41 is set on the first pin seat positioning block 7, and the second positioning pin 42 is set on the second pin seat positioning block 12. The first pin seat positioning block 7 and the second pin seat positioning block 12 are used to contact the end face of the side panel of the vehicle body to position the device in the X direction (the length direction of the vehicle) on the side panel of the vehicle body, ensuring accurate positioning.

[0036] Preferably, the pin seat positioning block and the positioning pin are connected by a screw connection.

[0037] like Figures 1 to 5As shown, the first pin seat positioning block 7 is connected to one end of the profile plate 1 along its length via a first end connecting mechanism, and the second pin seat positioning block 12 is connected to the other end of the profile plate 1 along its length via a second end connecting mechanism. The first end connecting mechanism includes a sixth connecting block 9 and an eighth connecting block 11. The first pin seat positioning block 7 is mounted on the sixth connecting block 9, and the eighth connecting block 11 is connected to the profile plate 1 by bolts. A first adjusting shim is provided between the eighth connecting block 11 and the profile plate 1. The first adjusting shim is parallel to the Y direction, and the number of the first adjusting shims is adjustable. The first adjusting shim has through holes through which bolts can pass. By adjusting the number of the first adjusting shims, the distance between the first pin seat positioning block 7 and the profile plate 1 can be adjusted in the Z direction to suit the positioning requirements of different parts on the side panel of the vehicle body, improving adaptability and providing convenient and efficient adjustment. The eighth connecting block 11 is connected to the sixth connecting block 9 by bolts. A second adjusting shim is provided between the eighth connecting block 11 and the sixth connecting block 9. The second adjusting shim is parallel to the X direction. The number of the second adjusting shims is adjustable. The second adjusting shim has through holes through which bolts can pass. By adjusting the number of the second adjusting shims, the distance between the first pin seat positioning block 7 and the profile plate 1 can be adjusted in the X direction to suit the positioning requirements of different parts on the side of the vehicle body. This improves adaptability and makes adjustment convenient and efficient.

[0038] like Figures 1 to 5 As shown, the second end connection mechanism includes a first connecting block 2 and a ninth connecting block 13. The second pin seat positioning block 12 is mounted on the ninth connecting block 13. The first connecting block 2 is connected to the template 1 by bolts. A third adjusting shim is provided between the first connecting block 2 and the template 1. The third adjusting shim is parallel to the Y direction. The number of the third adjusting shims is adjustable. The third adjusting shim has through holes through which bolts can pass. By adjusting the number of the third adjusting shims, the distance between the second pin seat positioning block 12 and the template 1 can be adjusted in the Z direction to suit the positioning requirements of different parts on the side of the vehicle body, improving adaptability and making adjustment convenient and efficient. The first connecting block 2 is connected to the ninth connecting block 13 by bolts. A fourth adjusting shim is provided between the first connecting block 2 and the ninth connecting block 13. The fourth adjusting shim is parallel to the X direction. The number of the fourth adjusting shims can be adjusted. The fourth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of the fourth adjusting shims, the distance between the second pin seat positioning block 12 and the profile plate 1 can be adjusted in the X direction to suit the positioning requirements of different parts on the side of the vehicle body. This improves adaptability and makes adjustment convenient and efficient.

[0039] like Figures 1 to 5As shown, the second positioning mechanism is configured to position the plate 1 in the X direction. The second positioning mechanism includes multiple side positioning blocks, all of which are arranged between the first positioning pin 41 and the second positioning pin 42. All side positioning blocks are used to contact the end face of the vehicle side panel to position the device in the X direction on the vehicle side panel, ensuring accurate positioning.

[0040] like Figures 1 to 5 As shown, preferably, the side positioning block is an L-shaped structure. In order for the L-shaped side positioning block to fit firmly against the side of the vehicle body, a magnet is provided on the side positioning block to attract the side of the vehicle body.

[0041] Preferably, the side panel positioning block is connected to the molded plate 1 by bolts. A fifth adjusting shim is provided between the side panel positioning block and the molded plate 1. The fifth adjusting shim is parallel to the X-direction, and the number of fifth adjusting shims is adjustable. The fifth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of fifth adjusting shims, the distance between the side panel positioning block and the molded plate 1 can be adjusted in the X-direction, which facilitates the positioning of the adjustment device, improves adaptability, and is convenient and efficient.

[0042] like Figures 1 to 5 As shown, in this embodiment, four side panel positioning blocks are provided: a first side panel positioning block 19, a second side panel positioning block 20, a third side panel positioning block 21, and a fourth side panel positioning block 22. The first side panel positioning block 19 and the second side panel positioning block 20 are arranged sequentially along the length of the molded plate 1, and the third side panel positioning block 21 and the fourth side panel positioning block 22 are also arranged sequentially along the length of the molded plate 1. That is, all side panel positioning blocks are provided corresponding to the upper, lower, left, and right sides of the vehicle body side panel, supporting the X-axis positioning of this device.

[0043] like Figures 1 to 5 As shown, the third positioning mechanism includes a fourth connecting block 5 and a tailgate positioning block 8 for contacting the tailgate and providing support for it. The tailgate positioning block 8 is mounted on the fourth connecting block 5, which is located at the same end of the mold plate 1 as the first positioning pin 41. In use, the tailgate positioning block 8 is located below the tailgate, with its upper end in contact with the tailgate, for positioning the tailgate in the Z-axis position of the vehicle body, ensuring accurate tailgate positioning, and facilitating tailgate assembly.

[0044] like Figures 1 to 5As shown, the tailgate positioning block 8 and the fourth connecting block 5 are connected by bolts. A sixth adjusting shim is provided between the tailgate positioning block 8 and the fourth connecting block 5. The sixth adjusting shim is parallel to the Y direction, and the number of the sixth adjusting shims is adjustable. The sixth adjusting shim has through holes for the bolts to pass through. By adjusting the number of the sixth adjusting shims, the distance between the tailgate positioning block 8 and the mold plate 1 can be adjusted in the Z direction, which facilitates the adjustment of the height position of the tailgate positioning block 8, improves adaptability, and is convenient and efficient.

[0045] like Figures 1 to 5 As shown, the detection mechanism includes multiple detection positioning blocks. The detection positioning blocks are connected to the mold plate 1 via a side connecting mechanism, and the distance between the detection positioning blocks and the mold plate 1 is adjustable.

[0046] like Figures 1 to 5 As shown, in this embodiment, the detection positioning block includes a first detection positioning block 4, a fifth detection positioning block 23, and a sixth detection positioning block 25. The fifth detection positioning block 23, the first detection positioning block 4, and the sixth detection positioning block 25 are arranged sequentially along the length direction of the profile plate 1. The fifth detection positioning block 23, the first detection positioning block 4, and the sixth detection positioning block 25 are set on the upper, middle, and lower sides of the vehicle body side panel respectively in order to measure the gap surface difference between the vehicle body side panel and the taillights installed on the vehicle body.

[0047] like Figures 1 to 5 As shown, the first detection positioning block 4 is connected to the mold plate 1 through the first side connection mechanism, the fifth detection positioning block 23 is connected to the mold plate 1 through the second side connection mechanism, and the sixth detection positioning block 25 is connected to the mold plate 1 through the third side connection mechanism.

[0048] like Figures 1 to 5 As shown, the first side connection mechanism includes a seventh connecting block 10 and a second connecting block 3. A first detection and positioning block 4 is bolted to the second connecting block 3. The seventh connecting block 10 is bolted to the mold plate 1. A seventh adjusting shim is provided between the seventh connecting block 10 and the mold plate 1. The number of seventh adjusting shims is adjustable. Each seventh adjusting shim has a through hole for the bolt to pass through. By adjusting the number of seventh adjusting shims, the position of the first detection and positioning block 4 can be adjusted in the Y direction, improving adaptability, ensuring accurate detection, and providing convenient and efficient adjustment. The second connecting block 3 is bolted to the seventh connecting block 10. An eighth adjusting shim is provided between the second connecting block 3 and the seventh connecting block 10. The number of eighth adjusting shims is adjustable. Each eighth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of eighth adjusting shims, the position of the first detection and positioning block 4 can be adjusted in the X direction, improving adaptability, ensuring accurate detection, and providing convenient and efficient adjustment.

[0049] like Figures 1 to 5 As shown, the second side connection mechanism includes a seventh connecting block 10 and a twelfth connecting block 24. The second detection positioning block 14 is bolted to the twelfth connecting block 24. The seventh connecting block 10 is bolted to the mold plate 1. A ninth adjusting shim is provided between the seventh connecting block 10 and the mold plate 1. The number of the ninth adjusting shims is adjustable. The ninth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of the ninth adjusting shims, the position of the second detection positioning block 14 can be adjusted in the Y direction, improving adaptability, ensuring detection accuracy, and providing convenient and efficient adjustment. The twelfth connecting block 24 is bolted to the seventh connecting block 10. A tenth adjusting shim is provided between the twelfth connecting block 24 and the seventh connecting block 10. The number of the tenth adjusting shims is adjustable. The tenth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of the tenth adjusting shims, the position of the second detection positioning block 14 can be adjusted in the X direction, improving adaptability, ensuring detection accuracy, and providing convenient and efficient adjustment.

[0050] like Figures 1 to 5 As shown, the third side connection mechanism includes a tenth connecting block 17 and a thirteenth connecting block 26. The third detection positioning block 15 is bolted to the thirteenth connecting block. The tenth connecting block 17 is bolted to the mold plate 1. An eleventh adjusting shim is provided between the tenth connecting block 17 and the mold plate 1. The number of eleventh adjusting shims is adjustable. The eleventh adjusting shim has a through hole for the bolt to pass through. By adjusting the number of eleventh adjusting shims, the position of the third detection positioning block 15 can be adjusted in the Y direction, improving adaptability, ensuring detection accuracy, and providing convenient and efficient adjustment. The thirteenth connecting block 26 is bolted to the tenth connecting block 17. A twelfth adjusting shim is provided between the thirteenth connecting block 26 and the tenth connecting block 17. The number of twelfth adjusting shims is adjustable. The twelfth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of twelfth adjusting shims, the position of the third detection positioning block 15 can be adjusted in the X direction, improving adaptability, ensuring detection accuracy, and providing convenient and efficient adjustment.

[0051] like Figures 1 to 5 As shown, in this embodiment, the detection positioning block further includes a second detection positioning block 14, a third detection positioning block 15, and a fourth detection positioning block 16. The second detection positioning block 14, the third detection positioning block 15, and the fourth detection positioning block 16 are arranged sequentially along the length direction of the profile plate 1. The second detection positioning block 14, the third detection positioning block 15, and the fourth detection positioning block 16 are set on the upper, middle, and lower sides of the vehicle body side panel respectively in order to measure the gap surface difference between the tailgate and the taillight installed on the vehicle body.

[0052] like Figures 1 to 5As shown, the second detection positioning block 14 is connected to the mold plate 1 through the fourth side connection mechanism, the third detection positioning block 15 is connected to the mold plate 1 through the fifth side connection mechanism, and the fourth detection positioning block 16 is connected to the mold plate 1 through the sixth side connection mechanism.

[0053] like Figures 1 to 5 As shown, the fourth side connection mechanism includes an eleventh connecting block 18. The second detection positioning block 14 is mounted on the eleventh connecting block 18 by bolts. The eleventh connecting block 18 is connected to the mold plate 1. A thirteenth adjusting shim is provided between the second detection positioning block 14 and the eleventh connecting block 18. The number of thirteenth adjusting shims is adjustable. The thirteenth adjusting shim has through holes through which bolts can pass. By adjusting the number of thirteenth adjusting shims, the position of the second detection positioning block 14 can be adjusted in the Y direction, which improves adaptability, ensures accurate detection, and is convenient and efficient.

[0054] like Figures 1 to 5 As shown, the fifth side connection mechanism includes a fourteenth connecting block. The third detection positioning block 15 is mounted on the fourteenth connecting block by bolts. The fourteenth connecting block is connected to the mold plate 1. A fourteenth adjusting shim is provided between the third detection positioning block 15 and the fourteenth connecting block. The number of fourteenth adjusting shims is adjustable. The fourteenth adjusting shim has through holes through which bolts can pass. By adjusting the number of fourteenth adjusting shims, the position of the third detection positioning block 15 can be adjusted in the Y direction, which improves adaptability, ensures accurate detection, and is convenient and efficient to adjust.

[0055] like Figures 1 to 5 As shown, the sixth side connection mechanism includes a fifth connecting block 6, and a fourth detection positioning block 16 is bolted to the fifth connecting block 6. The fifth connecting block 6 is connected to the mold plate 1. A fifteenth adjusting shim is provided between the fourth detection positioning block 16 and the fifth connecting block 6. The number of fifteen adjusting shims is adjustable. The fifteenth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of fifteen adjusting shims, the position of the fourth detection positioning block 16 can be adjusted in the Y direction, which improves adaptability, ensures accurate detection, and is convenient and efficient.

[0056] Preferably, the first connecting block 2 is bolted to the mold plate 1. A sixteenth adjusting shim is provided between the first connecting block 2 and the mold plate 1. The number of the sixteenth adjusting shims is adjustable. The sixteenth adjusting shims have through holes for the bolts to pass through. By adjusting the number of the sixteenth adjusting shims, the position of the second positioning pin 42 can be adjusted in the Z-direction, improving adaptability, ensuring accurate detection, and providing convenient and efficient adjustment. The eighth connecting block 11 is bolted to the mold plate 1. A seventeenth adjusting shim is provided between the eighth connecting block 11 and the mold plate 1. The number of the seventeenth adjusting shims is adjustable. The seventeenth adjusting shims have through holes for the bolts to pass through. By adjusting the number of the seventeenth adjusting shims, the position of the first positioning pin 41 can be adjusted in the Z-direction, improving adaptability, ensuring accurate detection, and providing convenient and efficient adjustment.

[0057] Preferably, the fourth connecting block 5 is bolted to the mold plate 1. An eighteenth adjusting shim is provided between the fourth connecting block 5 and the mold plate 1. The number of the eighteenth adjusting shims is adjustable. The eighteenth adjusting shims have through holes through which bolts can pass. By adjusting the number of the eighteenth adjusting shims, the position of the rear door positioning block 8 can be adjusted in the Z direction, which improves adaptability, ensures accurate detection, and is convenient and efficient for adjustment.

[0058] Preferably, the fifth connecting block 6 is bolted to the mold plate 1. A nineteenth adjusting shim is provided between the fifth connecting block 6 and the mold plate 1. The number of the eighteenth adjusting shims is adjustable. The nineteenth adjusting shim has a through hole for the bolt to pass through. By adjusting the number of the nineteenth adjusting shims, the position of the fourth detection positioning block 16 can be adjusted in the X direction, which improves adaptability, ensures accurate detection, and is convenient and efficient for adjustment.

[0059] Preferably, the eleventh connecting block 18 is bolted to the mold plate 1. A twentieth adjusting shim is provided between the eleventh connecting block 18 and the mold plate 1. The number of the nineteenth adjusting shims is adjustable. The twentieth adjusting shim has a through hole through which the bolt passes. By adjusting the number of the twentieth adjusting shims, the position of the second detection positioning block 14 can be adjusted in the X direction, which improves adaptability, ensures accurate detection, and is convenient and efficient.

[0060] Preferably, the fourteenth connecting block is bolted to the mold plate 1. A twentieth adjusting shim is provided between the fourteenth connecting block and the mold plate 1. The number of the twentieth adjusting shims is adjustable. The twentieth adjusting shim has through holes through which bolts can pass. By adjusting the number of the twentieth adjusting shims, the position of the third detection positioning block 15 can be adjusted in the X direction, which improves adaptability, ensures accurate detection, and is convenient and efficient for adjustment.

[0061] Preferably, the seventh connecting block 10 is bolted to the mold plate 1. A twenty-first adjusting shim is provided between the seventh connecting block 10 and the mold plate 1. The number of the twenty-first adjusting shims is adjustable. The twenty-first adjusting shim has through holes through which bolts can pass. By adjusting the number of the twenty-first adjusting shims, the positions of the first detection positioning block 4 and the fifth detection positioning block 23 can be adjusted in the X direction, which improves adaptability, ensures accurate detection, and is convenient and efficient for adjustment.

[0062] Preferably, the tenth connecting block 17 is bolted to the mold plate 1. A twenty-second adjusting shim is provided between the tenth connecting block 17 and the mold plate 1. The number of the twenty-second adjusting shims is adjustable. The twenty-second adjusting shims have through holes through which bolts can pass. By adjusting the number of the twenty-second adjusting shims, the position of the sixth detection positioning block 25 can be adjusted in the X direction, which improves adaptability, ensures accurate detection, and is convenient and efficient for adjustment.

[0063] As a preferred option, such as Figures 1 to 5 As shown, in order to reduce the weight of the device, the template 1 adopts a hollow structure, and at the same time, it is easy to grip the tooling by hand. The template 1 has an I-shaped structure. The fourth side positioning block 22 is located between the fifth detection positioning block 23 and the first detection positioning block 4, and the third side positioning block 21 is located between the sixth detection positioning block 25 and the first detection positioning block 4.

[0064] Preferably, the pin seat positioning block is provided with a limiting boss, and the positioning pin is provided with a limiting groove that cooperates with the limiting boss at the position corresponding to the limiting boss.

[0065] Preferably, the upper end of the locating pin is provided with a pin rod, which passes through the locating pin seat from bottom to top and is connected to the nut through a threaded structure.

[0066] The present invention also provides a method for installing a car tailgate, using the above-described auxiliary installation device for a car tailgate, and including the following steps:

[0067] S1. Install the auxiliary mounting device for the rear tailgate of the car onto the side panel of the vehicle body;

[0068] S2. Place the rear door to be assembled on the third positioning mechanism;

[0069] S3. Adjust the gap between the tailgate and the auxiliary installation device of the tailgate;

[0070] S4. After the gap and surface difference are adjusted to meet the requirements, assemble the rear door.

[0071] In step S1 above, two auxiliary installation devices for the rear tailgate are installed on the side panel of the vehicle body. The positioning pins of the two auxiliary installation devices for the rear tailgate are inserted into the positioning holes on the side panel of the vehicle body. The side panel positioning blocks and pin seat positioning blocks of the two auxiliary installation devices for the rear tailgate are in contact with the end face of the side panel of the vehicle body. The two auxiliary installation devices for the rear tailgate are distributed on both sides of the installation position of the rear tailgate. Finally, check whether the auxiliary installation devices for the rear tailgate are firmly positioned.

[0072] In step S2 above, the tailgate positioning blocks 8 of the two car tailgate auxiliary installation devices provide support for the tailgate from below.

[0073] In step S3 above, the position of the tailgate is adjusted to ensure that the gap between the left and right sides of the tailgate and the two auxiliary mounting devices for the tailgate, as well as the gap between the tailgate and the taillight, meet the requirements.

[0074] In step S4 above, after the gap surface difference is adjusted to be qualified, the tailgate is assembled and connected to the vehicle body.

[0075] In the description of this invention, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "one end", "one side", "both ends", "both sides", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. An auxiliary mounting device for a car tailgate, characterized in that, It includes a template, a first positioning mechanism disposed on the template and used for positioning on the side of the vehicle body, a second positioning mechanism disposed on the template and used for contacting the side of the vehicle body, a detection mechanism disposed on the template and used for detecting the gap surface difference between the side of the vehicle body, the tailgate and the taillight, and a third positioning mechanism disposed on the template and used for positioning the Z-direction position of the tailgate. The first positioning mechanism is configured to position the Y and Z directions of the template. The first positioning mechanism includes positioning pins, and at least two positioning pins are provided. Positioning holes for inserting the positioning pins are provided on the side panel of the vehicle body. The second positioning mechanism is configured to position the template in the X direction. The second positioning mechanism includes a side positioning block, and multiple side positioning blocks are provided. The third positioning mechanism includes a tailgate positioning block for contacting the tailgate and for providing support to the tailgate; The detection mechanism includes multiple detection positioning blocks.

2. The auxiliary installation device for a car tailgate according to claim 1, characterized in that, The first positioning mechanism further includes a pin positioning block for contacting the side panel of the vehicle body. The positioning pin is disposed on the pin positioning block, and the pin positioning block is connected to the mold plate through an end connecting mechanism. The distance between the pin positioning block and the mold plate is adjustable.

3. The auxiliary installation device for a car tailgate according to claim 1, characterized in that, Magnets are installed on the side positioning block.

4. The auxiliary mounting device for a car tailgate according to any one of claims 1 to 3, characterized in that, The detection positioning block is connected to the template through a side connecting mechanism, and the distance between the detection positioning block and the template is adjustable.

5. The auxiliary installation device for a car tailgate according to claim 2, characterized in that, The pin seat positioning block is provided with a limiting boss, and the positioning pin is provided with a limiting groove that cooperates with the limiting boss at the position corresponding to the limiting boss.

6. A method for installing a car tailgate, characterized in that, The vehicle tailgate auxiliary installation device according to any one of claims 1 to 5 is adopted, and includes the following steps: S1. Install the auxiliary mounting device for the rear tailgate of the car onto the side panel of the vehicle body; S2. Place the rear door to be assembled on the third positioning mechanism; S3. Adjust the gap between the tailgate and the auxiliary installation device of the tailgate; S4. After the gap and surface difference are adjusted to meet the requirements, assemble the rear door.

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