Automobile glass guide rail positioning tool

Abstract

The utility model provides an automobile glass guide rail positioning tool which comprises a first base, a second base, a first positioning part and a second positioning part. The first base is provided with a main supporting face, and the head portion and the tail portion of a guide rail body are respectively provided with a first positioning part. The two first clamping pieces are in one-to-one correspondence with the two first positioning parts respectively, and the first driving device is used for driving the two first clamping pieces to move transversely; the two second clamping pieces correspond to the head part and the tail part of the guide rail main body respectively, and the second driving device is used for driving the two second clamping pieces to move up and down; the downward pressing driving device is used for driving the downward pressing seat to move so that the downward pressing seat can be matched with the main supporting face to vertically clamp the guide rail body together. The positioning tool can effectively prevent the guide rail from flying, upwarping, positioning failure caused by dislocation and the like, can effectively guarantee smooth operation of mounting operation and reduce the failure rate, and can effectively improve the production efficiency and the yield.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a positioning fixture for automobile glass guide rails. Background Technology

[0002] Guide rails are an important accessory on vehicle door windows. During the process of installing guide rails onto the glass, positioning fixtures are needed to fix and position the guide rails so that they can be aligned with the installation position on the glass.

[0003] Existing positioning fixtures typically include a base and a clamping seat. The base has a support surface that matches the guide rail. After the guide rail is placed on the support surface, the clamping seat works with the base to clamp the guide rail, thereby fixing and positioning it. However, guide rails are usually thin and curved, and have a certain degree of elasticity. When placed on the support surface, it is difficult to maintain a consistent shape and state. In addition, errors are inevitable in the shape of the guide rail during molding. Therefore, during the positioning and clamping process, problems such as knocking, lifting, and positioning failure often occur, resulting in a high failure rate and seriously affecting assembly efficiency and yield. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an automotive glass guide rail positioning fixture that helps to ensure the smooth progress of installation operations and reduce the failure rate.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A positioning fixture for automotive glass guide rails, comprising:

[0007] A first base is provided with a main support surface adapted to the guide rail body. A first positioning part is provided on the first base corresponding to the head and tail of the guide rail body, and both first positioning parts are located on the side of the main support surface.

[0008] The first driving device and two first clamping members, the two first clamping members respectively correspond to the two first positioning parts, and the first driving device is used to drive the two first clamping members to move laterally so that each first clamping member can laterally clamp the guide rail body together with its corresponding first positioning part.

[0009] The second driving device and two second clamping members are both disposed on the first base and correspond to the head and tail of the guide rail body respectively. The second driving device is used to drive the two second clamping members to move up and down so that the two second clamping members can press the head and tail of the guide rail body respectively onto the main support surface.

[0010] The lower pressure seat and the lower pressure drive device are used to drive the lower pressure seat to move so that the lower pressure seat can cooperate with the main support surface to vertically clamp the guide rail body.

[0011] Preferably, the first base is provided with a first positioning member, the first positioning part is disposed on the first positioning member, and the lateral position of the first positioning member on the first base is adjustable.

[0012] Preferably, a second positioning part is provided on the first base corresponding to the head and tail of the guide rail body, and each second positioning part is located on the side of the main support surface and on the opposite side of the first positioning part at its location.

[0013] Preferably, the bottom of the second clamping member is provided with a rotatable ball, and the second clamping member can press the guide rail body onto the main support surface through the ball.

[0014] Preferably, the first base is provided with a third positioning member corresponding to the first end of the guide rail body and a fourth positioning member corresponding to the tail end of the guide rail body; the third positioning member has an upper positioning part for abutting against the top surface of the first end of the guide rail body and a first end face positioning part for abutting against the end face of the first end of the guide rail body, and the fourth positioning member has a second end face positioning part for abutting against the end face of the tail end of the guide rail body.

[0015] Preferably, the positions of the third and fourth positioning elements on the first base along the length of the guide rail body are adjustable.

[0016] Preferably, the main support surface is provided with two notches corresponding to the two second clamping members respectively, and the first base is provided with two first support members located in the two notches respectively. Each first support member is used to cooperate with its corresponding second clamping member to vertically clamp the guide rail body; the vertical position of the first support member on the first base is adjustable.

[0017] Preferably, the first base is provided with two second support members corresponding to the ends of the two guide rails respectively. The second support members have a secondary support surface adapted to the ends of the guide rails, and the vertical position of the second support members on the first base is adjustable.

[0018] Preferably, it further includes a second base and a lifting drive device. The first base is vertically movable and is mounted on the second base. The lifting drive device is used to drive the first base to move vertically. The first base is provided with a first abutting part, and the second base is provided with a second abutting part. The first abutting part can abut against the second abutting part as the first base moves downward relative to the second base to limit the downward movement distance of the first base. The vertical position of the first abutting part on the first base is adjustable, or the vertical position of the second abutting part on the second base is adjustable.

[0019] Preferably, it further includes a third base, on which a swing seat is oscillatingly disposed. The swing axis of the swing seat is transverse and perpendicular or inclined to the length direction of the main support surface. The second base is disposed on the swing seat through a transverse adjustment mechanism, which is used to adjust the transverse position of the second base.

[0020] The beneficial effects of this utility model are as follows: After the guide rail is placed on the main support surface, the two second clamping members, driven by the second driving device, can press the head and tail of the guide rail body, which are prone to warping, onto the main support surface. The two first clamping members, driven by the first driving device, cooperate with the two first positioning parts to laterally clamp the head and tail of the guide rail body, which are prone to lateral displacement, for lateral clamping and positioning. This can achieve the correction of the guide rail shape and the accurate positioning and fixing of the head and tail of the guide rail. Then, the lower pressure seat is driven by the lower pressure driving device to move to vertically clamp the guide rail body with the main support surface, thereby achieving the overall fixing and accurate positioning of the guide rail. This can effectively avoid situations such as the guide rail flying away, warping, and positioning failure due to misalignment. It can effectively ensure the smooth progress of the installation operation and reduce the failure rate, thereby effectively improving production efficiency and the yield rate of the installation process. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is an overall structural diagram of a preferred embodiment of the present utility model;

[0023] Figure 2 This is a structural diagram of the preferred embodiment of the present invention after removing the lower pressure seat;

[0024] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0025] Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0026] The following are the labeling elements in the figure:

[0027] 10. First base; 11. Main support surface; 12. First positioning component; 13. Second positioning component; 14. Third positioning component; 141. Upper positioning part; 142. First end face positioning part; 15. Fourth positioning component; 151. Second end face positioning part; 161. Notch; 162. First support component; 17. Second support component; 171. Secondary support surface; 18. Abutment block; 19. Adjusting bolt; 21. First driving device; 22. First clamping component; 31. Second driving device; 32. Second clamping component; 41. Lower pressure seat; 42. First clamping cylinder; 43. Second clamping cylinder; 50. Second base; 61. Third base; 62. Swing seat; 63. Swing pivot shaft; 64. Lateral adjustment mechanism; 70. Shim. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 4In a preferred embodiment of this utility model, an automotive glass guide rail positioning fixture is provided. The guide rail includes a guide rail body and two guide rail ends extending outward from both ends of the guide rail body along its length. The positioning fixture includes: a first base 10, on which a main support surface 11 adapted to the guide rail body is provided; a first positioning part is provided on the first base 10 corresponding to the head and tail of the guide rail body, and both first positioning parts are located on the side of the main support surface 11; a first driving device 21 and two first clamping members 22, the two first clamping members 22 corresponding one-to-one with the two first positioning parts; the first driving device 21 is used to drive the two first clamping members 22. The clamping member 22 moves laterally so that each first clamping member 22 can clamp the guide rail body laterally together with its corresponding first positioning part; the second driving device 31 and two second clamping members 32 are both disposed on the first base 10 and respectively correspond to the head and tail of the guide rail body. The second driving device 31 is used to drive the two second clamping members 32 to move up and down so that the two second clamping members 32 can respectively press the head and tail of the guide rail body onto the main support surface 11; the lower pressure seat 41 and the lower pressure driving device are used to drive the lower pressure seat 41 to move so that the lower pressure seat 41 can cooperate with the main support surface 11 to clamp the guide rail body vertically. In this positioning fixture, after the guide rail is placed on the main support surface 11, the two second clamping members 32, driven by the second driving device 31, can press the head and tail of the guide rail body, which are prone to tilting, onto the main support surface 11. The two first clamping members 22, driven by the first driving device 21, cooperate with the two first positioning parts to laterally clamp the head and tail of the guide rail body, which are prone to lateral displacement, for lateral clamping and positioning. This can correct the shape of the guide rail and accurately position and fix the head and tail of the guide rail. Then, the lower pressure seat 41 is driven by the lower pressure driving device to move to vertically clamp the guide rail body with the main support surface 11, thereby achieving overall fixation and accurate positioning of the guide rail. This can effectively prevent the guide rail from flying off, tilting, or positioning failure due to misalignment, and can effectively ensure the smooth progress of the installation operation and reduce the failure rate. Correspondingly, it can effectively improve production efficiency and the yield rate of the installation process.

[0033] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0034] In this embodiment, both the first driving device 21 and the second driving device 31 use cylinders, and each first clamping member 22 corresponds to a first driving device 21, and each second clamping member 32 also corresponds to a second driving device 31. The structure is simple, the action is fast, and it is easy to control. In other embodiments, the first driving device 21 and the second driving device 31 can also use common driving structures such as gear and rack mechanism, lead screw mechanism, and linkage mechanism driven by motor. Alternatively, the two first clamping members 22 can be connected or linked and driven by a first driving device 21 at the same time, and the two second clamping members 32 can also be connected or linked and driven by a second driving device 31 at the same time.

[0035] Reference Figure 1 and Figure 2 In this embodiment, the clamping drive device includes a first clamping cylinder 42 and a second clamping cylinder 43. The first clamping cylinder 42 is used to drive the clamping seat to move laterally, and the second clamping cylinder 43 is used to drive the clamping seat to move up and down. This allows the clamping seat to move away to avoid obstacles after the guide rail enters and the operation is completed. During the operation, it can work with the main support surface 11 to clamp the guide rail body. The structure is simple and convenient for processing, manufacturing, and operation. In other embodiments, the clamping drive device can also use other commonly used drive structures such as a screw mechanism or a gear and rack mechanism driven by a motor to drive the clamping member to move. The movement mode of the clamping member can also be set to other suitable modes such as tilting movement, only up and down movement, only lateral movement, or forward and backward movement. Alternatively, the clamping member can also adopt a swinging movement mode, which can be realized by a pivoting structure. The clamping drive device can correspondingly adopt commonly used drive structures such as a swing cylinder or a gear mechanism driven by a motor. Those skilled in the art can flexibly select and adjust as needed, and are not limited to these.

[0036] Reference Figures 1 to 4In this embodiment, a first positioning member 12 is provided on the first base 10, and a first positioning part is provided on the first positioning member 12. The lateral position of the first positioning member 12 on the first base 10 is adjustable. Therefore, the reference position of the guide rail body can be adjusted by adjusting the position of the first positioning member 12, which can adapt to the positioning requirements of guide rails of different specifications and facilitates adjustment of the reference position for dimensional errors of guide rails from different batches, making it more flexible and convenient to use. In this embodiment, the first positioning member 12 is fixed to the first base 10 by bolts. The lateral position of the first positioning member 12 is adjusted by providing shims 70 between the first positioning member 12 and the first base 10. The adjustment of the first positioning member 12 can be achieved simply by changing the thickness and number of shims 70, resulting in a simple structure and convenient operation. In other embodiments, other adjustment structures can also be used to adjust the lateral position of the first positioning member 12. For example, a lead screw mechanism can be used to set the first positioning member 12 on the first base 10, and the lead screw mechanism can be used to drive the first positioning member 12 to move laterally and to position the first positioning member 12. Alternatively, the first positioning member 12 can be slidably set on the first base 10, and the positioning and position adjustment of the first positioning member 12 can be achieved by abutting with a pin or other adjustable abutting member against one side of the guide rail body. Those skilled in the art can also choose other commonly used adjustment structures, and are not limited to these.

[0037] In this embodiment, a second positioning part is provided on the first base 10 corresponding to the head and tail of the guide rail body, respectively. Each second positioning part is located on the side of the main support surface 11 and opposite to the first positioning part at its location. Through the cooperation of the second positioning part and the first positioning part, the guide rail body can be coarsely positioned when the guide rail is placed on the main support surface 11. Then, the first clamping member 22 is used in conjunction with the first positioning part for precise positioning, which is beneficial for accurate feeding of the guide rail and smooth subsequent operations. In this embodiment, the second positioning part is a second positioning member 13 that is detachably installed on the first base 10 by screws, making it easy to replace as needed and providing greater adaptability. In other embodiments, the second positioning part can also be a protrusion on the first base 10, or a screw, pin, or insert plate can be installed on the first base 10 as a second positioning part. In addition, in this embodiment, the two first positioning parts are located on the same side of the main support surface 11, while the two second positioning parts and the two first clamping members 22 are located on the other side of the main support surface 11, which facilitates the setting of the reference. In other embodiments, the arrangement of the first positioning parts, the second positioning parts and the first clamping members 22 can also be adjusted as needed.

[0038] In this embodiment, the bottom of the second clamping member 32 is provided with a rotatable ball. The second clamping member 32 can press the guide rail body onto the main support surface 11 through the ball. Thus, after the guide rail body is pressed, the guide rail can still move laterally under the action of the ball, and can continue to be positioned by the first clamping member 22, which helps to ensure the accuracy of positioning.

[0039] In this embodiment, the first base 10 is provided with a third positioning member 14 corresponding to the first end of the guide rail body and a fourth positioning member 15 corresponding to the tail end of the guide rail body. The third positioning member 14 has an upper positioning part 141 for abutting against the top surface of the first end of the guide rail body and a first end face positioning part 142 for abutting against the end face of the first end of the guide rail body. The fourth positioning member 15 has a second end face positioning part 151 for abutting against the end face of the tail end of the guide rail body. It can position the guide rail body in the length direction, and the upper positioning part 141 can prevent the first end of the guide rail body from tilting up.

[0040] In this embodiment, the positions of the third positioning member 14 and the fourth positioning member 15 on the first base 10 along the length of the guide rail body are adjustable, which can adapt to guide rails of different specifications and can also flexibly adjust the positioning position according to the processing error of different batches of guide rails, i.e., the shape of the workpiece, making it more flexible and convenient to use. Like the first positioning member 12, in this embodiment, the third positioning member 14 and the fourth positioning member 15 also use shims 70 for adjustment. Also like the first positioning member 12, in other embodiments, the third positioning member 14 and the fourth positioning member 15 can also adopt other commonly used position adjustment structures.

[0041] In this embodiment, the main support surface 11 is provided with two notches 161 corresponding to the two second clamping members 32, and the first base 10 is provided with two first support members 162 located in the two notches 161. Each first support member 162 is used to vertically clamp the guide rail body together with its corresponding second clamping member 32. The vertical position of the first support member 162 on the first base 10 is adjustable, thereby allowing adjustment of the height of the head and tail of the guide rail body after the second clamping member 32 has pressed the guide rail body, or adapting to the positioning needs of guide rail bodies of different thicknesses and specifications, making it more flexible and convenient to use. In this embodiment, the top surface of the first support member 162 adopts a contoured surface that matches the bottom surface of the corresponding position of the guide rail body, which can ensure the accuracy of positioning the guide rail body. In this embodiment, the first support member 162 is detachable, and different shapes and specifications of guide rails can be adapted by replacing different first support members 162, making it more adaptable. The main support surface 11 can also adopt a contoured surface structure.

[0042] In this embodiment, the first base 10 is provided with two second support members 17 corresponding to the two guide rail ends respectively. The second support member 17 has a secondary support surface 171 adapted to the guide rail end. The vertical position of the second support member 17 on the first base 10 is adjustable, which can correct the shape and height of the guide rail end that is prone to deformation, which is beneficial to subsequent assembly work. Furthermore, the height of the second support member 17 can be adjusted as needed, making it more flexible, convenient and adaptable.

[0043] In this embodiment, the first support member 162 and the second support member 17, like the first positioning member 12, also adopt a structure in which bolts can be detached and fixed and shims 70 are used for adjustment. Also like the first positioning member 12, the first support member 162 and the second support member 17 can also adopt other commonly used adjustment structures to achieve position adjustment.

[0044] In this embodiment, a second base 50 and a lifting drive device are also included. The first base 10 is vertically movable and is mounted on the second base 50. The lifting drive device is used to drive the first base 10 to move vertically. The first base 10 is provided with a first abutting part, and the second base 50 is provided with a second abutting part. The first abutting part can abut against the second abutting part as the first base 10 moves downward relative to the second base 50 to limit the downward movement distance of the first base 10. The vertical position of the first abutting part on the first base 10 is adjustable. The lifting function of the first base 10 makes it easy to feed and discharge materials. The cooperation between the first abutting part and the second abutting part can accurately position the working position of the first base 10 and can flexibly adjust the working position of the first base 10 as needed to adjust the height of the guide rail assembly, making it more flexible and convenient to use. In this embodiment, the top surface of the second base 50 is used as the second abutment. An abutment block 18 is mounted on the first base 10 via an adjusting bolt 19, which serves as the first abutment. The abutment block 18 is threadedly connected to the adjusting bolt 19, and its position can be adjusted by rotating the adjusting screw. The structure is simple and convenient for manufacturing and operation. In other embodiments, the first abutment can also use other conventional adjustment structures to achieve vertical adjustment, or the vertical position of the second abutment on the second base 50 can be adjusted to achieve vertical adjustment of the first base 10 in its working state. In addition, in this embodiment, the first base 10 is mounted on the second base 50 via a dovetail guide rail mechanism, which can play a good guiding and limiting role; a buffer pad is provided at the bottom of the first abutment to reduce the collision between the first abutment and the second abutment, providing good protection. In this embodiment, the lifting drive device uses a cylinder, which has a simple structure, fast action, and is easy to install and control. In other embodiments, the lifting drive device can also use a motor or other common driver in conjunction with a gear rack mechanism, crank connecting rod mechanism or other common transmission structure to drive the second base 50 to move up and down.

[0045] This embodiment also includes a third base 61, on which a swing seat 62 is oscillatingly mounted. The swing axis of the swing seat 62 is transverse and perpendicular or inclined to the length direction of the main support surface 11. A second base 50 is mounted on the swing seat 62 via a transverse adjustment mechanism 64. The transverse adjustment mechanism 64 is used to adjust the transverse position of the second base 50, thereby adjusting the transverse position and tilt angle of the guide rail, allowing the guide rail to be more accurately aligned with the glass workpiece, making it more flexible and convenient to use, more adaptable, and helping to ensure processing quality. In this embodiment, the transverse adjustment mechanism 64 adopts a two-layer dovetail guide rail mechanism. The position of the second base 50 on the swing seat 62 is adjusted by manually pushing it. One end of the swing seat 62 is pivotally mounted on the third base 61 via a swing pivot shaft 63. The swing angle of the swing seat 62 is adjusted by placing a shim 70 at the other end of the swing seat 62. The structure is simple and easy to manufacture and assemble. In other embodiments, the swing seat 62 can also adopt other commonly used swing connection structures such as hinges. The tilt angle of the swing seat 62 can also be adjusted by commonly used adjustment structures such as ratchet structures and lead screw mechanisms. The lateral adjustment mechanism 64 can also adopt other suitable position adjustment structures such as lead screw mechanisms and gear and rack mechanisms. Those skilled in the art can flexibly select and adjust as needed, and are not limited to these. In some embodiments, a motor, cylinder or other driver can be added to drive the lateral adjustment mechanism 64 to move and drive the swing seat 62 to swing. Common locking structures such as pins, buckles, and locking screws can also be added to lock the second base 50 after the position and the angle of the swing seat 62 are adjusted.

[0046] This utility model can be applied to guide rails that are convex elongated, with the protruding parts at both ends being the guide rail ends and the remaining part being the guide rail body. Of course, this utility model can also be used to position and fix guide rails of other suitable shapes, and is not limited to this.

[0047] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0048] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A positioning fixture for automotive glass guide rails, characterized in that, include: A first base is provided with a main support surface adapted to the guide rail body. A first positioning part is provided on the first base corresponding to the head and tail of the guide rail body, and both first positioning parts are located on the side of the main support surface. The first driving device and two first clamping members, the two first clamping members respectively correspond to the two first positioning parts, and the first driving device is used to drive the two first clamping members to move laterally so that each first clamping member can laterally clamp the guide rail body together with its corresponding first positioning part. The second driving device and two second clamping members are both disposed on the first base and correspond to the head and tail of the guide rail body respectively. The second driving device is used to drive the two second clamping members to move up and down so that the two second clamping members can press the head and tail of the guide rail body respectively onto the main support surface. The lower pressure seat and the lower pressure drive device are used to drive the lower pressure seat to move so that the lower pressure seat can cooperate with the main support surface to vertically clamp the guide rail body.

2. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, The first base is provided with a first positioning member, and the first positioning part is disposed on the first positioning member. The lateral position of the first positioning member on the first base is adjustable.

3. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, A second positioning part is provided on the first base corresponding to the head and tail of the guide rail body, and each second positioning part is located on the side of the main support surface and on the opposite side of the first positioning part at its location.

4. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, The bottom of the second clamping member is provided with a rotatable ball, which can press the guide rail body onto the main support surface.

5. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, The first base is provided with a third positioning member corresponding to the first end of the guide rail body and a fourth positioning member corresponding to the last end of the guide rail body; the third positioning member has an upper positioning part for abutting against the top surface of the first end of the guide rail body and a first end face positioning part for abutting against the end face of the first end of the guide rail body, and the fourth positioning member has a second end face positioning part for abutting against the end face of the last end of the guide rail body.

6. The automotive glass guide rail positioning fixture according to claim 5, characterized in that, The positions of the third and fourth positioning components on the first base along the length of the guide rail body are adjustable.

7. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, The main support surface is provided with two notches corresponding to the two second clamping members respectively. The first base is provided with two first support members located in the two notches respectively. Each first support member is used to cooperate with its corresponding second clamping member to vertically clamp the guide rail body. The vertical position of the first support member on the first base is adjustable.

8. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, The first base is provided with two second support members corresponding to the ends of the two guide rails respectively. The second support members have a secondary support surface adapted to the ends of the guide rails, and the vertical position of the second support members on the first base is adjustable.

9. The automotive glass guide rail positioning fixture according to claim 1, characterized in that, It also includes a second base and a lifting drive device. The first base is vertically movable and is mounted on the second base. The lifting drive device is used to drive the first base to move vertically. The first base is provided with a first abutting part, and the second base is provided with a second abutting part. The first abutting part can abut against the second abutting part as the first base moves downward relative to the second base to limit the downward movement distance of the first base. The vertical position of the first abutting part on the first base is adjustable, or the vertical position of the second abutting part on the second base is adjustable.

10. The automotive glass guide rail positioning fixture according to claim 9, characterized in that, It also includes a third base, on which a swing seat is oscillatingly mounted. The swing axis of the swing seat is transverse and perpendicular or inclined to the length direction of the main support surface. The second base is mounted on the swing seat through a transverse adjustment mechanism, which is used to adjust the transverse position of the second base.

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