CN213262701U

CN213262701U - Front and rear windshield automatic centering and positioning device compatible with various vehicle types

Info

Publication number: CN213262701U
Application number: CN202020485454.3U
Authority: CN
Inventors: 刘宇; 刘恒; 储大飞; 郭时茂; 任健
Original assignee: Espert Automation Technology Co ltd
Current assignee: Espert Automation Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-05-25
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a windscreen automatic centering positioner around compatible multiple motorcycle type relates to car assembly technical field. The utility model discloses a frame, bottom surface supporting unit, side positioning unit, X are to centering clamping unit and Y to centering clamping unit, X is to centering clamping unit comprises two sets of synchronous X to the centering clamping unit, and side positioning unit is equipped with in the dead ahead of frame, and what close the installation of side positioning unit is bottom surface supporting unit, and two sets of X are in to centering clamping unit symmetric distribution bottom surface supporting unit both sides, Y are in to centering clamping unit side positioning unit's dead back. The utility model provides a compatible problem of windscreen automatic centering location around the multiple motorcycle type, saved equipment cost and place.

Description

Front and rear windshield automatic centering and positioning device compatible with various vehicle types

Technical Field

The utility model belongs to the technical field of the car assembly, particularly, automatic centering positioner of windshield around in particular to compatible multiple motorcycle type.

Background

Automobile windshield glass can prevent bad weather, insects and fragments on roads are beaten on the face of a driver, the comfort of the driver is improved, so the automobile windshield glass has wide application in various automobiles, the front windshield glass and the rear windshield glass are more in the form of AGV automatic feeding at present, after feeding is completed, the glass is transferred to a centering platform from a feeding port by a mechanical conveying system for centering and positioning, and after automatic centering and positioning, the robot grabs the glass to complete subsequent work.

The prior art is limited in compatible motorcycle type, especially is compatible with front and rear windshield glass simultaneously, and the prior art is relatively limited, and is poor to multiple motorcycle type compatibility, and is with high costs, takes up an area of extensively.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a windscreen automatic centering positioner around compatible multiple motorcycle type to overcome the above-mentioned technical problem that current correlation technique exists.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a windscreen automatic centering positioner around compatible multiple motorcycle type, including frame, bottom surface support element, side positioning unit, X to centering clamping unit and Y to centering clamping unit, X comprises two sets of synchronous X to the centering clamping unit, side positioning unit is equipped with in the frame dead ahead, hugs closely the installation of side positioning unit is bottom surface support element, two sets X is in to the butt clamp unit symmetric distribution bottom surface support element both sides, Y is in to centering clamping unit side positioning unit's dead back.

Furthermore, each group of X-direction butt clamp units consists of a bearing I, a bearing II, a gasket I, a support shaft, a linear guide rail I, a displacement sensor connecting plate, a sliding block pressing plate I, a synchronous belt connecting arm, a transition plate, a synchronous belt clamping block, a clamping shaft, an air cylinder, a floating joint clamping block, a sliding block pressing plate II, a bearing seat, a bearing III, a gasket II, a synchronous belt wheel, a synchronous belt, a key, a bearing IV, a cover plate and a spacer bush; the cylinder pushes a support shaft, a bearing I, a bearing II and a gasket I which are arranged on a sliding block pressing plate II through a floating joint and a floating joint clamping block, and clamping units on the opposite sides are connected together through a synchronous belt connecting arm, a transition plate, a synchronous belt clamping block, a synchronous belt wheel, a bearing III, a key, a bearing IV, a spacer bush, a cover plate and a clamping unit on the cylinder side.

Furthermore, the Y-direction centering and clamping unit consists of an aluminum profile base, an aluminum profile mounting bracket, a profile pressing plate, a linear guide rail II, a drag chain guide groove, a drag chain bracket, a displacement sensor connecting plate, a cylinder, a floating joint clamping block, a sliding block pressing plate III, a Y-direction bearing support, a bearing I, a bearing II, a support shaft, a gasket I, a turnover cylinder fixing seat, a hinge pin, a turnover cylinder joint, a hinge block, a hinge support, a centering clamping block, a turnover shaft, a nut, a rotating base, a copper spacer, a turnover support column, a bearing I, a bearing II, a support shaft and a gasket I; the aluminum profile base and the drag chain guide groove are arranged on the deck plate of the bottom surface supporting unit, the aluminum profile mounting bracket is arranged on the side surface of the aluminum profile base and the upper surface of the deck plate, the connected aluminum profile bases are connected through the corner seat, the drag chain guide groove is arranged on the left side of the aluminum profile base, and an aluminum profile pressing plate is arranged right above the aluminum profile base; a displacement sensor is arranged right above the right side of the aluminum profile pressing plate, and a displacement sensor connecting plate is arranged in front of the displacement sensor; a linear guide rail II is arranged right above the middle of the profile pressing plate, a sliding block pressing plate III is arranged right above the linear guide rail II, the rear side face of the sliding block pressing plate III is connected with a displacement sensor connecting plate and a floating joint clamping block, a Y-direction bearing support is arranged right above the rear side of the sliding block pressing plate III, a bearing I and a bearing II are arranged on the Y-direction bearing support, support shafts are arranged on the outer sides of the bearing I and the bearing II, a gasket I is arranged right above the bearing II, a drag chain support is arranged in the middle of the sliding block pressing plate III, two ends of a drag chain are respectively fixed on a drag chain guide groove and the drag chain support, a rotating base is arranged right above; an air cylinder is arranged right above the left side, a floating joint is arranged on the head of the air cylinder, and the floating joint is connected with a floating joint clamping block through a clamping groove; the middle of the left side face is provided with a turnover cylinder fixing seat, the front side is provided with a hinge support, the other side of the turnover cylinder fixing seat is provided with a turnover cylinder, the front side of the turnover cylinder is provided with a turnover cylinder joint, the turnover cylinder joint is connected with a hinge block through a hinge pin, the other side of the hinge pin is connected with the hinge support, the middle of the hinge block is connected with a clamping block through the hinge pin, the other end of the clamping block is provided with a turnover shaft, the turnover shaft is inserted into a hole of a turnover strut, the side face of the turnover strut is screwed on the turnover shaft through a nut, the lower end of the turnover strut is connected with a rotating base through the hinge pin, a first bearing and a second bearing are arranged above the.

Furthermore, the side positioning unit is composed of two groups of positioning units, each group of positioning units is composed of an extension plate, a support upright post, a first bearing, a second bearing, a rotating shaft and a first gasket, one end of the extension plate is fixed on the table board of the bottom surface support unit, the support upright post is fixed at one end of the extension plate, the first bearing is installed at the lower end of the support upright post, the rotating shaft is installed outside the first bearing, the second bearing is installed at the upper end of the rotating shaft, the first gasket is installed at the top of the second bearing at the upper end of the rotating shaft, and all parts are.

Furthermore, the bottom surface supporting unit is composed of a table top plate, lifting eye bolts, a first base, a second base, a third base, a fourth base, an adjusting seat, adjusting nuts, resin rollers, a proximity switch and a proximity switch bracket; the table board is fixed on the rack, the first base, the second base, the third base, the fourth base and the lifting bolt are arranged on the table board, the first base, the second base, the third base and the fourth base are connected with a clamping adjusting seat through threads, an adjusting nut is arranged on the adjusting seat, the proximity switch support is arranged among the first base, the second base, the third base, the fourth base and the adjusting nut, the proximity switch is arranged on the proximity switch support, and all parts are connected through threads.

Furthermore, the frame comprises welding frame, adjustment lower margin, lower margin fixed block and rag bolt.

The utility model discloses following beneficial effect has:

the utility model provides a compatible problem of windscreen automatic centering location around the multiple motorcycle type, saved equipment cost and place.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

Fig. 1 is a schematic view of an axial measurement structure of the present invention;

fig. 2 is a schematic structural view of the rack of the present invention;

fig. 3 is a schematic structural view of the bottom surface supporting unit of the present invention;

fig. 4 is a schematic structural view of the side positioning unit of the present invention;

fig. 5 is a schematic structural view of the X-direction centering and clamping unit of the present invention;

fig. 6 is a schematic structural view of the X-direction opposite clamping unit of the present invention;

fig. 7 is a schematic structural view of the Y-direction centering and clamping unit of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a frame; 2. a bottom surface supporting unit; 3. a side positioning unit; 4. an X-direction centering and clamping unit; 5. y-direction centering and clamping units; 6. welding the frame; 7. adjusting the ground feet; 8. a ground pin fixing block; 9. anchor bolts; 10. A table top plate; 11. an eye bolt; 12. a first base; 13. a second base; 14. a third base; 15. a fourth base; 16. an adjusting seat; 17. adjusting the nut; 18. a proximity switch bracket; 19. a proximity switch; 20. a resin roller; 21. an extension plate; 22. supporting the upright post; 23. a rotating shaft; 24. a first bearing; 25. a second bearing; 26. a first gasket; 27. an X-direction opposite clamping unit; 28. a support shaft; 29. a first linear guide rail; 30. a displacement sensor; 31. a displacement sensor connecting plate; 32. a first slide block is pressed; 33. a synchronous belt connecting arm; 34. a transition plate; 35. a synchronous belt clamping block; 36. a clamping shaft; 37. a cylinder; 38. a floating joint; 39. a floating joint fixture block; 40. a second sliding block pressing plate; 41. a bearing seat; 42. a third bearing; 43. a second gasket; 44. a synchronous pulley; 45. a synchronous belt; 46. a key; 47. a bearing IV; 48. a cover plate; 49. a spacer sleeve; 50. an aluminum profile base; 51. an aluminum profile mounting bracket; 52. pressing plates of the section; 53. a second linear guide rail; 54. a drag chain guide groove; 55. A drag chain; 56. a tow chain support; 57. pressing a third slide block; 58. a bearing support in the Y direction; 59. a turnover cylinder fixing seat; 60. turning over the air cylinder; 61. turning over the cylinder joint; 62. a hinge block; 63. a hinge pin; 64. a hinge support; 65. aligning the clamping blocks; 66. a turning shaft; 67. a nut; 68. turning over the support; 69. a copper spacer; 70. Rotating the base; 71. and clamping the shaft in the Y direction.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "top", "middle", "inner", and the like indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Please refer to fig. 1-7, the utility model relates to a compatible multiple motorcycle type's automatic centering positioner of front and back windshield, including frame 1, bottom surface support unit 2, side positioning unit 3, X to centering clamping unit 4 and Y to centering clamping unit 5, X is to centering clamping unit 4 comprises two sets of synchronous X to centering clamping unit 27, side positioning unit 3 is equipped with in frame 1 dead ahead, it is bottom surface support unit 2 to face the installation of side positioning unit 3, two sets of X is to centering clamping unit 4 symmetric distribution in bottom surface support unit 2 both sides, Y is to centering clamping unit 5 in the dead back of side positioning unit 3.

In one embodiment, for the above-mentioned X-direction clamping units 27, each group of the X-direction clamping units 27 is composed of a first bearing 24, a second bearing 25, a first spacer 26, a support shaft 28, a first linear guide 29, a displacement sensor 30, a displacement sensor connecting plate 31, a first slider pressing plate 32, a timing belt connecting arm 33, a transition plate 34, a timing belt clamping block 35, a clamping shaft 36, a cylinder 37, a floating joint 38, a floating joint clamping block 39, a second slider pressing plate 40, a bearing seat 41, a third bearing 42, a second spacer 43, a timing pulley 44, a timing belt 45, a key 46, a fourth bearing 47, a cover plate 48 and a spacer 49; wherein the cylinder 37 is pushed to be arranged on the support shaft 28, the bearing I24, the bearing II 25 and the gasket I26 on the sliding block pressing plate II 40 through the floating joint 38 and the floating joint clamping block 39, the opposite clamping units are connected with the clamping units on the sides of the cylinder 37 through the middle synchronous belt connecting arm 33, the transition plate 34, the synchronous belt clamping block 35, the synchronous belt 45, the synchronous belt pulley 44, the bearing III 42, the key 46, the bearing IV 47, the spacer 49 and the cover plate 48, so that the cylinder 37 extends out and retracts to drive the floating joint clamping block 39 to move left and right through the floating joint 38, the sliding block pressing plate II 40 slides left and right on the linear guide rail I29, the sliding block pressing plate II 40 drives the synchronous belt 45 to rotate through the synchronous belt connecting arm 33, the sliding block pressing plate I32 on the other side is driven to synchronously move relatively through the synchronous belt, the first slide block pressing plate 32 moves to drive the displacement sensor connecting plate 31 on one side of the first slide block pressing plate and the displacement sensor 30 on the first slide block pressing plate to synchronously move, so that the clamping units on the left side and the right side are opened and clamped, and centering and positioning in the X direction are realized.

In one embodiment, for the Y-direction centering and clamping unit 5, the Y-direction centering and clamping unit 5 is composed of an aluminum profile base 50, an aluminum profile mounting bracket 51, a profile pressing plate 52, a linear guide rail two 53, a drag chain guide groove 54, a drag chain 55, a drag chain bracket 56, a displacement sensor 30, a displacement sensor connecting plate 31, an air cylinder 37, a floating joint 38, a floating joint clamping block 39, a slider pressing plate three 57, a Y-direction bearing support 58, a bearing one 24, a bearing two 25, a supporting shaft 28, a gasket one 26, a turnover air cylinder 60, a turnover air cylinder fixing seat 59, a hinge pin 63, a turnover air cylinder joint 61, a hinge block 62, a hinge support 64, a centering clamping block 65, a turnover shaft 66, a nut 67, a rotating base 70, a copper spacer 69, a turnover support 68, a bearing one 24, a bearing two 25, a supporting shaft 28 and a gasket one; the aluminum profile base 50 and the drag chain guide groove 54 are arranged on the table panel 10 of the bottom surface supporting unit 2, the aluminum profile mounting bracket 51 is arranged on the side surface of the aluminum profile base 50 and the upper surface of the table panel 10, the connected aluminum profile bases 50 are connected through an angle seat, the drag chain guide groove 54 is arranged on the left side of the aluminum profile base 50, and the aluminum profile pressing plate 52 is arranged right above the aluminum profile base 50; a displacement sensor 30 is arranged right above the right side of the aluminum profile pressing plate 52, and a displacement sensor connecting plate 31 is arranged in front of the displacement sensor 30; a linear guide rail II 53 is arranged right above the middle of the section pressing plate 52, a sliding block pressing plate III 57 is arranged right above the linear guide rail II 53, the rear side face of the sliding block pressing plate III 57 is connected with the displacement sensor connecting plate 31 and the floating joint clamping block 39, a Y-direction bearing support 58 is arranged right above the rear side of the sliding block pressing plate III 57, a bearing I24 and a bearing II 25 are arranged on the Y-direction bearing support 58, a support shaft 28 is arranged outside the bearing I24 and the bearing II 25, a gasket I26 is arranged right above the bearing II 25, a drag chain support 56 is arranged in the middle of the sliding block pressing plate III 57, two ends of a drag chain 55 are respectively fixed on a drag chain guide groove 54 and the drag chain support 56, a rotating base 70 is arranged right above the front face; an air cylinder 37 is arranged right above the left side, a floating joint 38 is arranged on the head of the air cylinder 37, and the floating joint 38 is connected with a floating joint clamping block 39 through a clamping groove; the middle of the left side surface is provided with a turnover cylinder fixing seat 59, the front part is provided with a hinge support 64, the other side of the turnover cylinder fixing seat 59 is provided with a turnover cylinder 60, the front surface of the turnover cylinder 60 is provided with a turnover cylinder joint 61, the turnover cylinder joint 61 is connected with a hinge block 62 through a hinge pin 63, the other side of the hinge pin 63 is connected with the hinge support 64, the middle of the hinge block 62 is connected with a pair of clamping blocks 65 through a hinge pin 63, the other end of the clamping block 65 is provided with a turnover shaft 66, the turnover shaft 66 is inserted into a hole of a turnover support column 68, the side surface of the turnover support column 68 is screwed on the turnover shaft 66 through a nut 67, the lower end of the turnover support column 68 is connected with a rotating base 70 through the hinge pin 63, a bearing I24 and a bearing II 25 are arranged above the turnover support column 68, the outer sides of, the overturning cylinder 60 extends out to push the rotating base 70, the bearing I24, the bearing II 25, the supporting shaft 28 and the gasket I26 to overturn and fall forwards, and at the moment, the Y-direction clamping shaft 71, the bearing I24, the bearing II 25, the supporting shaft 28 and the gasket I26 which are arranged behind the Y-direction clamping positioning and pushed by the cylinder 37 move forwards and backwards on the linear guide rail II 53 to clamp and position the front windshield glass; when the rear glass is produced, the overturning air cylinder 60 retracts, the rotating base 70, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 are pushed to overturn backwards to the vertical direction, and the air cylinder 37 pushes the forward rotating base 70, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 to move forwards and backwards on the linear guide rail two 53 so as to clamp and position the rear glass.

In one embodiment, for the above side positioning unit 3, the side positioning unit 3 is composed of two sets of positioning units, each set of positioning unit is composed of an extension plate 21, a support column 22, a first bearing 24, a second bearing 25, a rotating shaft 23 and a first gasket 26, one end of the extension plate 21 is fixed on the deck plate 10 of the bottom support unit 2, one end of the extension plate is fixed on the support column 22, the lower end of the support column 22 is provided with the first bearing 24, the outer side of the first bearing 24 is provided with the rotating shaft 23, the upper end of the rotating shaft 23 is provided with the second bearing 25, the top of the second upper bearing 25 is provided with the first gasket 26, all the parts are connected through threads, so as to block and limit the windshield glass through the side positioning unit 3; in addition, in practical use, the rotating shaft 23 can rotate relative to the supporting upright 22.

In one embodiment, for the above bottom surface supporting unit 2, the bottom surface supporting unit 2 is composed of a table top plate 10, an eyebolt 11, a first base 12, a second base 13, a third base 14, a fourth base 15, an adjusting base 16, an adjusting nut 17, a resin roller 20, a proximity switch 19 and a proximity switch bracket 18; the table top plate 10 is fixed on the rack 1, the first base 12, the second base 13, the third base 14, the fourth base 15 and the eyebolt 11 are installed on the table top plate, the first base 12, the second base 13, the third base 14 and the fourth base 15 are connected through threads to clamp the adjusting seat 16, the adjusting nut 17 is installed on the adjusting seat 16, the proximity switch support 18 is installed between the first base 12, the second base 13, the third base 14, the fourth base 15 and the adjusting nut 17, the proximity switch 19 is installed on the proximity switch support 18, all parts are connected through threads, and in addition, when the table top plate is specifically applied, the table top plate 10 is connected with the rack 1 through a positioning pin and a bolt.

In one embodiment, for the frame 1, the frame 1 is composed of a welding frame 6, an adjusting anchor 7, an anchor fixing block 8 and an anchor bolt 9, so that the height of the frame can be adjusted by adjusting the anchor 7, and the frame is convenient to adjust and use; four corners of the welding frame are respectively provided with four adjusting anchor feet and anchor foot fixing blocks, anchor bolts are used for fixing the anchor foot fixing blocks and the ground, and all parts are connected through threads.

In summary, with the above technical solution of the present invention, after the material feeding is completed, the glass is transferred from the material feeding port to the centering table for centering and positioning by the mechanical conveying system or the mechanical arm, when the glass is placed on the resin roller 20 on the table panel 10, and one side of the windshield leans against the side positioning unit 3, the proximity switch 19 on each base detects the size of the windshield above, the detection manner is that, when only the proximity switch 19 on the base i 12 and the base ii 13 detects the glass, the front glass is larger than the rear glass, and therefore, the front glass is the rear glass, when the proximity switch 19 on the base i 12, the base ii 13, the base iii 14 and the base iv 15 all detect the glass, i.e., the front glass, at this time, the proximity switch 19 transmits a signal to the PLC control system to control the start cylinder 37 to retract, so as to drive the slider pressing plate i 32 and the slider pressing plate ii 40 to slide inwards on the linear guide rail i, the first slide block pressing plate 32 moves to drive the displacement sensor connecting plate 31 on one side of the first slide block pressing plate and the displacement sensor 30 on the first slide block pressing plate to synchronously move, when the displacement sensor 30 moves to detect the glass (namely the glass is clamped by the rotating shafts 23 on the first sliding block pressing plate 32 and the second sliding block pressing plate 40 at the moment), signals are transmitted to an external PLC control system, the control system further confirms the type of the glass according to the position of the displacement sensor, when the proximity switch 19 detects that the glass is front glass, the proximity switch 19 transmits a signal to the PLC control system, the PLC control system controls the overturning cylinder 60 to extend out to push the rotating base 70, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 to overturn forwards and fall down, and at the moment, the Y-direction clamping shaft 71, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 behind the Y-direction clamping position are pushed by the cylinder 37 to move forwards and backwards on the linear guide rail II 53 to clamp and position the front windshield glass; when the rear glass is produced, the overturning air cylinder 60 retracts, the rotating base 70, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 are pushed to overturn backwards to be in the vertical direction, and the air cylinder 37 pushes the forward pushing rotating base 70, the first bearing 24, the second bearing 25, the supporting shaft 28 and the first gasket 26 to move forwards and backwards on the linear guide rail two 53 to clamp and position the rear windshield glass. And after automatic centering and positioning, the robot grabs the glass to complete subsequent work.

Through the technical scheme, the utility model provides a compatible problem of windscreen automatic centering location around the multiple motorcycle type, saved equipment cost and place.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to help illustrate the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a windscreen automatic centering positioner around compatible multiple motorcycle type, includes frame (1), bottom surface support element (2), side positioning unit (3), X to centering clamping unit (4) and Y to centering clamping unit (5), its characterized in that: x is to centering clamping unit (4) to pressing from both sides unit (27) by two sets of synchronous X and constitutes, side positioning unit (3) are equipped with in the dead ahead of frame (1), are close to what side positioning unit (3) were installed is bottom surface support unit (2), and is two sets of X is to pressing from both sides unit (27) symmetric distribution and is in bottom surface support unit (2) both sides, Y is in to centering clamping unit (5) the dead back of side positioning unit (3).

2. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 1, wherein each group of X-direction centering and positioning units (27) is composed of a first bearing (24), a second bearing (25), a first gasket (26), a support shaft (28), a first linear guide rail (29), a displacement sensor (30), a displacement sensor connecting plate (31), a first slider pressing plate (32), a synchronous belt connecting arm (33), a transition plate (34), a synchronous belt clamping block (35), a clamping shaft (36), a cylinder (37), a floating joint (38), a floating joint clamping block (39), a second slider pressing plate (40), a bearing seat (41), a third bearing (42), a second gasket (43), a synchronous belt wheel (44), a synchronous belt (45), a key (46), a fourth bearing (47), a cover plate (48) and a spacer bush (49).

3. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 2, wherein the air cylinder (37) pushes the supporting shaft (28), the first bearing (24), the second bearing (25) and the first gasket (26) which are arranged on the second slider pressing plate (40) through the floating joint (38) and the floating joint clamping block (39), and the opposite clamping units are connected together through the middle synchronous belt connecting arm (33), the transition plate (34), the synchronous belt clamping block (35), the synchronous belt (45), the synchronous belt wheel (44), the third bearing (42), the key (46), the fourth bearing (47), the spacer bush (49) and the cover plate (48) and the clamping unit on the air cylinder (37) side.

4. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 3, wherein the Y-direction centering and clamping unit (5) is composed of an aluminum profile base (50), an aluminum profile mounting bracket (51), a profile pressing plate (52), a linear guide rail II (53), a drag chain guide groove (54), a drag chain (55), a drag chain bracket (56), a displacement sensor (30), a displacement sensor connecting plate (31), a cylinder (37), a floating joint (38), a floating joint clamping block (39), a slider pressing plate III (57), a Y-direction bearing support (58), a bearing I (24), a bearing II (25), a support shaft (28), a gasket I (26), a turnover cylinder (60), a turnover cylinder fixing seat (59), a hinge pin (63), a turnover cylinder joint (61), a hinge block (62), a hinge support (64), The device comprises a pair of clamping blocks (65), a turnover shaft (66), a nut (67), a rotating base (70), a copper spacer (69), a turnover support column (68), a first bearing (24), a second bearing (25), a support shaft (28) and a first gasket (26).

5. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 4, wherein the aluminum profile base (50) and the drag chain guide groove (54) are installed on the deck plate (10) of the bottom surface supporting unit (2), the aluminum profile mounting bracket (51) is installed on the side surface of the aluminum profile base (50) and the upper surface of the deck plate (10), the connected aluminum profile bases (50) are connected through corner seats, the drag chain guide groove (54) is arranged on the left side of the aluminum profile base (50), and an aluminum profile pressing plate (52) is installed right above the aluminum profile base (50); a displacement sensor (30) is arranged right above the right side of the aluminum profile pressing plate (52), and a displacement sensor connecting plate (31) is arranged in front of the displacement sensor (30); the section bar pressing plate is characterized in that a second linear guide rail (53) is arranged right above the middle of the section bar pressing plate (52), a third sliding block pressing plate (57) is arranged right above the second linear guide rail (53), the rear side face of the third sliding block pressing plate (57) is connected with the displacement sensor connecting plate (31) and the floating joint clamping block (39), a Y-direction bearing support (58) is arranged right above the rear side of the third sliding block pressing plate (57), a first bearing (24) and a second bearing (25) are arranged on the Y-direction bearing support (58), a supporting shaft (28) is arranged on the outer sides of the first bearing (24) and the second bearing (25), a first gasket (26) is arranged right above the second bearing (25), a drag chain support (56) is arranged in the middle of the third sliding block pressing plate (57), two ends of the drag chain (55) are respectively fixed on the drag chain guide groove (54) and the drag chain support (56), a rotating base (70).

6. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 5, wherein a floating joint (38) is arranged on the head of the cylinder (37), the floating joint (38) and a floating joint clamping block (39) are connected through a clamping groove, a turning cylinder (60) is arranged on the other side of a turning cylinder fixing seat (59), a turning cylinder joint (61) is arranged in front of the turning cylinder (60), the turning cylinder joint (61) and a hinge block (62) are connected through a hinge pin (63), the other side of the hinge pin (63) is connected with a hinge support (64), the middle of the hinge block (62) is connected with a pair of clamping blocks (65) through a hinge pin (63), a turning shaft (66) is arranged at the other end of the pair of clamping blocks (65), the turning shaft (66) is inserted into a hole of a turning pillar (68), and the side surface of the turning pillar (68) is screwed on the turning shaft (66) through, the lower end of the turning pillar (68) is connected with the rotating base (70) through a hinge pin (63), a first bearing (24) and a second bearing (25) are arranged above the turning pillar (68), a support shaft (28) is arranged on the outer sides of the first bearing (24) and the second bearing (25), and a first gasket (26) is arranged above the second bearing (25).

7. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 6, wherein the side positioning unit (3) is composed of two sets of positioning units, each set of positioning unit is composed of an extension plate (21), a support upright post (22), a first bearing (24), a second bearing (25), a rotating shaft (23) and a first gasket (26), one end of the extension plate (21) is fixed on the deck plate (10) of the bottom support unit (2), the other end of the extension plate is fixed on the support upright post (22), the lower end of the support upright post (22) is provided with the first bearing (24), the rotating shaft (23) is arranged on the outer side of the first bearing (24), the second bearing (25) is arranged at the upper end of the rotating shaft (23), the first gasket (26) is arranged at the top of the second bearing (25), and all the parts are connected through threads.

8. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 7, wherein the bottom surface supporting unit (2) is composed of a table top plate (10), an eyebolt (11), a first base (12), a second base (13), a third base (14), a fourth base (15), an adjusting seat (16), an adjusting nut (17), a resin roller (20), a proximity switch (19) and a proximity switch bracket (18); the table top plate (10) is fixed on the rack (1), the first base (12), the second base (13), the third base (14), the fourth base (15) and the eyebolt (11) are installed on the table top plate, the first base (12), the second base (13), the third base (14) and the fourth base (15) are connected through threads to clamp an adjusting seat (16), an adjusting nut (17) is installed on the adjusting seat (16), a proximity switch support (18) is installed between the first base (12), the second base (13), the third base (14), the fourth base (15) and the adjusting nut (17), a proximity switch (19) is installed on the proximity switch support (18), and all parts are connected through threads.

9. The automatic centering and positioning device for the front and rear windscreens compatible with various vehicle types as claimed in claim 8, wherein the machine frame (1) is composed of a welding frame (6), an adjusting anchor (7), an anchor fixing block (8) and an anchor bolt (9).