A glass positioning device and a PU shaping machine with the positioning device.

Abstract

This invention relates to the field of vehicle glass processing, specifically to a glass positioning device and a PU shaping machine with the positioning device. The glass positioning device includes a frame with at least three first arms, each with a first support and a suction cup for adsorbing the glass. The frame also has at least two second arms extending horizontally, with the extension directions of the two second arms perpendicular to each other. Each second arm has a second support, with an adjusting wheel and a rotary actuator for driving the adjusting wheel. This invention enables flexible adjustment of the glass position. The glass is first placed on the frame, and the glass is moved by rotating the adjusting wheel on the second arm. After the glass is adjusted to the designated position, the suction cup fixes the glass, improving the positional accuracy and allowing for accurate glass processing. This solves the problem of the inability to create positioning holes in sunroof glass, which affects the positioning accuracy during processing.

Description

Technical Field

[0001] This invention relates to the field of vehicle glass processing, specifically to a glass positioning device and a PU shaping machine having the positioning device. Background Technology

[0002] The PU lips on both sides of the sunroof's front glass, due to the high material temperature after the glass edging is molded, cause the dimensions between the two PU lips to widen outwards during the cooling process. This can lead to interference between the PU lips and the outer sealing strip after the sunroof comes into contact with the vehicle's external sealing strip, causing damage to either the outer sealing strip or the PU lips themselves. Therefore, tooling equipment is needed during production to prevent the PU lips from turning outwards. This process requires precise adjustment of the glass position to ensure accurate alignment between the glass sides and the tooling equipment. However, existing glass conveying equipment can only stably transport the glass but cannot precisely position it to the designated location. If the glass position deviates, not only can the outward turning of the PU lips be uncontrolled, but it can also lead to severe glass deformation, affecting production quality.

[0003] To this end, Chinese Patent No. CN119190853B discloses a precision positioning and conveying device and its positioning method for an automotive glass production line. It sets up a positioning moving mechanism, a preliminary positioning mechanism and a supporting mechanism. The positioning moving mechanism realizes the automatic lateral movement and automatic longitudinal movement of the preliminary positioning mechanism, and the lateral movement does not interfere with the supporting mechanism. A floating positioning mechanism is added to the preliminary positioning mechanism. The floating positioning mechanism cooperates with the conical positioning component, so that the floating positioning mechanism and the glass can make adaptive position fine adjustments during the process of the conical positioning component cooperating with the inner hole of the glass, making the positioning of the inner hole of the glass more accurate.

[0004] However, car sunroofs are usually installed and positioned using adhesive brackets. To ensure the sunroof's waterproof performance, positioning holes are not made in the glass. Therefore, positioning by using a tapered positioning component to fit the inner hole is not suitable for sunroofs. Summary of the Invention

[0005] To address the aforementioned issues, a glass positioning device and a PU shaping machine with the positioning device are provided. The machine frame, first arm, and second arm solve the problem that the inability to drill positioning holes in the sunroof glass affects the positioning accuracy during processing.

[0006] To address the problems of the prior art, the present invention provides a glass positioning device, comprising a frame, at least three first arms on the frame, a first support on each first arm, and a suction cup for adsorbing glass on each first support; at least two second arms extending horizontally on the frame, with the extension directions of the two second arms perpendicular to each other; a second support on each second arm, and an adjusting wheel and a rotary driver for driving the adjusting wheel to rotate on the second support.

[0007] Preferably, the second arm is provided with a third support, and the third support is provided with a support seat for supporting the glass; the second arm is provided with a control mechanism for controlling the lifting and lowering of the support seat and the adjusting wheel.

[0008] Preferably, the control mechanism includes a linear driver and a transmission assembly; the linear driver is used to drive the second support to move up and down in the vertical direction; the third support is connected to the second support via the transmission assembly; when the linear driver drives the second support to move up and down, the transmission assembly controls the third support to move up and down in the opposite direction.

[0009] Preferably, the transmission assembly includes a fixed hinge seat, a connecting rod, a second mounting seat, and a third mounting seat; the fixed hinge seat is disposed on the second support arm, and the connecting rod is hinged to the fixed hinge seat; both the second and third mounting seats are disposed on the second support arm, and the second and third supports are slidably mounted on the second and third mounting seats respectively; the second support seat is provided with a movable hinge seat, and both ends of the connecting rod are provided with a linear slide groove; both the movable hinge seat and the support seat are provided with a fixed shaft, and the two fixed shafts are slidably engaged with the linear slide grooves at both ends of the connecting rod respectively.

[0010] Preferably, the support base is provided with a base, and a support ball for supporting the glass is hinged inside the base.

[0011] Preferably, the movable hinge seat is connected to a first guide rod that slides with the second support; the bottom of the movable hinge seat is provided with a first elastic element, and the two ends of the first elastic element are respectively connected to the movable hinge seat and the second support.

[0012] Preferably, a sleeve is fitted onto the drive end of the rotary actuator; a horizontal plate is provided on the movable hinge seat, and a telescopic shaft that is fitted onto the horizontal plate and engages with the sleeve is rotatably mounted on the horizontal plate; a first rotating shaft is rotatably mounted on the movable hinge seat, and an adjusting wheel is fitted onto the first rotating shaft; a bevel gear is fitted onto both the first rotating shaft and the telescopic shaft, and the two bevel gears are meshed together.

[0013] Preferably, the first arm is provided with a first mounting seat; the first mounting seat is provided with a mounting rod that is rotatably connected to the first arm.

[0014] Preferably, the first mounting base is provided with a mounting cylinder, and the mounting rod is slidably mounted on the mounting cylinder; the mounting cylinder is provided with a second elastic element connected to the mounting rod.

[0015] A PU shaping machine with a positioning device includes a worktable with tooling for shaping glass; a frame is mounted on the worktable.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention achieves flexible glass position adjustment through a frame, a first arm, and a second arm. The glass is first placed on the frame, and the glass is moved by the rotation of adjusting wheels on the second arm. After the glass is adjusted to the designated position, a suction cup fixes it, improving the glass's positional accuracy and enabling precise processing. This solves the problem of the inability to create positioning holes in skylight glass, which affects the processing accuracy. Operators use a robotic arm or other automated equipment to place the glass on the frame, which is supported by multiple sets of adjusting wheels. Then, a controller sends a signal to a rotary drive, which drives the adjusting wheels to rotate. During rotation, the adjusting wheels push the glass in a designated direction, adjusting its position. Once the glass is adjusted to the preset position, the rotary drive stops. The glass is then held in place by a suction cup, ensuring its positional accuracy during subsequent transport and processing. Compared to traditional technologies, this invention precisely adjusts the glass's position by using adjusting wheels to move it, achieving accurate glass positioning.

[0018] 2. This invention achieves the effect of supporting the glass through a third support, a support rod, and a control mechanism. When controlling the glass to move in one direction, it avoids the glass being affected by the adjusting wheels in other directions, thereby improving stability during the adjustment process. When adjusting the glass position, first control the adjusting wheels in the same direction to rise, control the adjusting wheels in other directions to move downwards, and support the glass through the support rod. Then, control the adjusting wheels in contact with the glass to rotate, adjusting the glass position. During this process, the support rod prevents friction between the adjusting wheels in other directions and the glass, thus preventing the glass's movement direction from being affected and avoiding scratches on the glass surface caused by friction between the glass and the adjusting wheels.

[0019] 3. This invention achieves the function of controlling the second and third supports to alternately rise and fall in a mutually exclusive manner through a linear drive and transmission assembly. This allows the support rod to be moved up in a timely manner after the operator controls the adjusting wheel to move down, thus avoiding the glass from slipping and being damaged during the adjustment process. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a PU shaping machine with a positioning device according to the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram of a glass positioning device of the present invention in its working state.

[0022] Figure 3 This is a three-dimensional schematic diagram of a glass positioning device according to the present invention.

[0023] Figure 4This is a three-dimensional schematic diagram of the second arm and control mechanism of a glass positioning device according to the present invention after the adjusting wheel has risen.

[0024] Figure 5 This is a three-dimensional schematic diagram of the second arm and control mechanism of a glass positioning device according to the present invention after the adjusting wheel has descended.

[0025] Figure 6 This is a three-dimensional schematic diagram of the adjusting wheel, support ball, and control mechanism of a glass positioning device according to the present invention.

[0026] Figure 7 This is the invention Figure 6 A magnified view of a portion of point A in the middle.

[0027] Figure 8 This is a three-dimensional schematic diagram of the adjustment wheel and rotary drive of a glass positioning device according to the present invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of the cooperation between the third support, the support base, and the connecting rod of a glass positioning device according to the present invention.

[0029] Figure 10 This is an exploded perspective view of the first mounting base, mounting rod, mounting cylinder, and suction cup of a glass positioning device according to the present invention.

[0030] The diagram is labeled as follows: 1. Frame; 2. First arm; 21. First support; 211. Suction cup; 212. Second shaft; 22. First mounting base; 221. Mounting rod; 222. Mounting cylinder; 223. Second elastic element; 3. Second arm; 31. Second support; 311. Adjusting wheel; 32. Rotary actuator; 321. Sleeve; 322. Horizontal plate; 3221. Telescopic shaft; 323. First shaft; 324. Bevel gear. 33. Wheel; 34. Third support; 35. Support seat; 36. Base; 37. Support ball; 38. Movable hinge seat; 39. First guide rod; 30. First elastic element; 40. Control mechanism; 41. Linear actuator; 42. Transmission assembly; 421. Fixed hinge seat; 422. Connecting rod; 423. Second mounting seat; 424. Third mounting seat; 425. Fixed shaft; 5. Glass; 6. Worktable; 71. Tooling. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1-3A glass positioning device includes a frame 1, at least three first arms 2 on the frame 1, each first arm 2 having a first support 21 on it, and each first support 21 having a suction cup 211 for adsorbing glass 5; at least two second arms 3 extending horizontally on the frame 1, with the extension directions of the two second arms 3 being perpendicular to each other; each second arm 3 having a second support 31 on it, and each second support 31 having an adjusting wheel 311 and a rotary driver 32 for driving the adjusting wheel 311 to rotate.

[0033] This invention achieves flexible adjustment of the glass 5's position through a frame 1, a first support arm 2, and a second support arm 3. First, the glass 5 is placed on the frame 1, and then moved by the rotation of the adjusting wheels 311 on the second support arm 3. After the glass 5 is adjusted to the designated position, it is fixed by a suction cup 211, improving the positional accuracy of the glass 5 and enabling precise processing. The frame 1 is equipped with a controller for human-machine interaction, and the rotary driver 32 is preferably a servo motor, electrically connected to the controller. There are eight first support arms 2 and four second support arms 3. Each second support 31 has four adjusting wheels 311. In operation, the operator places the glass 5 onto the frame 1 using a robotic arm or other tools, and the glass 5 is supported by the cooperation of multiple sets of adjusting wheels 311. Next, the controller sends a signal to the rotary driver 32, which drives the adjusting wheel 311 to rotate. During rotation, the adjusting wheel 311 pushes the glass 5 along a specified direction, adjusting its position. Once the glass 5 is adjusted to the preset position, the rotary driver 32 stops. Then, the suction cup 211 picks up the glass 5, fixing it in place. This ensures the workpiece maintains positioning accuracy during subsequent transport, transfer, and processing. Compared to traditional technologies, this invention precisely adjusts the position of the glass 5 by using the adjusting wheel 311 to move it, achieving accurate positioning of the glass 5.

[0034] Reference Figure 4 and Figure 5 The second support arm 3 is provided with a third support 33, and the third support 33 is provided with a support seat 331 for supporting the glass 5; the second support arm 3 is provided with a control mechanism 4 for controlling the lifting and lowering of the support seat 331 and the adjusting wheel 311.

[0035] This invention achieves the effect of supporting the glass 5 through the third support 33, the support base 331, and the control mechanism 4. When controlling the glass 5 to move in one direction, it avoids the glass 5 being affected by the adjusting wheels 311 in other directions, thereby improving the stability during the adjustment process. When adjusting the position of the glass 5, the adjusting wheels 311 in the same direction are first controlled to rise, while the adjusting wheels 311 in other directions are controlled to move downwards. The support base 331 supports the glass 5, and then the adjusting wheels 311 in contact with the glass 5 are controlled to rotate, adjusting the position of the glass 5. During this process, the support base 331 prevents friction between the adjusting wheels 311 in other directions and the glass 5, thus preventing the movement direction of the glass 5 from being affected and avoiding scratches on the surface of the glass 5 caused by friction between the glass 5 and the adjusting wheels 311. The second support arm 3 has four arms, and the extension directions of the four arms are collinear in pairs, forming a cross distribution. When adjusting the position of the glass 5, the control mechanism 4 controls the adjustment wheels 311 on the two second arms 3 located on the same straight line to rise, while the two adjustment wheels 311 on the other straight line move down, and controls the support base 331 to rise, providing support force only through the support base 331. Then, the rotary driver 32 drives the two adjustment wheels 311 to rotate in the same direction, thereby pushing the glass 5 to move in that direction.

[0036] Reference Figure 4 and Figure 5 The control mechanism 4 includes a linear driver 41 and a transmission assembly 42. The linear driver 41 is used to drive the second support 31 to move up and down in the vertical direction. The third support 33 is connected to the second support 31 through the transmission assembly 42. When the linear driver 41 drives the second support 31 to move up and down, the transmission assembly 42 controls the third support 33 to move up and down in the opposite direction.

[0037] This invention utilizes a linear actuator 41 and a transmission assembly 42 to control the alternating raising and lowering of the second support 31 and the third support 33 in a mutually exclusive manner. This allows for timely control of the support 331 to move upwards after the operator lowers the adjusting wheel 311, preventing the glass 5 from slipping and being damaged during adjustment. The linear actuator 41 is preferably a linear cylinder and is electrically connected to the controller. In operation, the operator sends a signal to the linear actuator 41 via the controller. Upon receiving the signal, the linear actuator 41 drives the second support 31 downwards. While the second support 31 is moving downwards, the transmission assembly 42 controls the third support 33, located on the same second arm 3, to move upwards. After the adjusting wheel 311 separates from the glass 5, the support 331 can rise quickly, providing timely support. This prevents the glass 5 from slipping off the frame 1 due to unstable support, further improving the stability of the positioning device during operation.

[0038] Reference Figures 4-7 and Figure 9The transmission assembly 42 includes a fixed hinge seat 421, a connecting rod 422, a second mounting seat 423, and a third mounting seat 424. The fixed hinge seat 421 is mounted on the second support arm 3, and the connecting rod 422 is hinged to the fixed hinge seat 421. The second mounting seat 423 and the third mounting seat 424 are both mounted on the second support arm 3, and the second support 31 and the third support 33 are slidably mounted on the second mounting seat 423 and the third mounting seat 424, respectively. The second support 31 is provided with a movable hinge seat 34, and a straight groove is provided at both ends of the connecting rod 422. A fixed shaft 425 is provided on both the movable hinge seat 34 and the support seat 331, and the fixed shaft 425 on the movable hinge seat 34 and the support seat 331 slides in cooperation with the straight grooves at both ends of the connecting rod 422.

[0039] This invention achieves the function of controlling the second support 31 and the third support 33 to alternately rise and fall in a mutually exclusive manner through a fixed hinge seat 421, a connecting rod 422, a second mounting seat 423, a third mounting seat 424, and a fixed shaft 425. The two ends of the fixed shaft 425, located on the movable hinge seat 34, are respectively connected to two adjacent movable hinge seats 34 via a frame. A linear actuator 41 is mounted on the second mounting seat 423, and the driving end of the linear actuator 41 is connected to the second support 31. When the control adjusting wheel 311 moves downward, a signal is sent to the linear actuator 41 through the controller, causing the linear actuator 41 to drive the second support 31 to move downward, which in turn drives the adjusting wheel 311 to move downward. Meanwhile, the fixed shaft 425 on the movable hinge seat 34 pushes the groove wall of the linear groove at the end of the connecting rod 422, thereby pushing the connecting rod 422 to rotate. The connecting rod 422 then pushes the fixed shaft 425 on the other side of the support seat 331, thereby pushing the third support 33 to move upward. The third support 33 drives the support base 331 to move upward, supporting the glass 5 through the support base 331. During the raising and lowering of the adjusting wheel 311, the glass 5 is kept sufficiently supported.

[0040] Reference Figure 4 and Figure 5 The support base 331 is provided with a base 332, and a support ball 333 for supporting the glass 5 is hinged inside the base 332.

[0041] This invention achieves the function of supporting glass 5 through base 332 and support ball 333. Furthermore, the rolling friction between support ball 333 and glass 5 replaces the original sliding friction, further reducing wear on glass 5 during position adjustment and ensuring processing quality. After controlling the upward movement of the third support 33, the third support 33 drives the base 332 and support ball 333 upward, supporting glass 5 through point contact between support ball 333 and glass 5. Moreover, during subsequent translation of glass 5 driven by adjusting wheel 311, support ball 333 can roll on its surface in accordance with the movement trend of glass 5. This rolling characteristic provides reliable support while avoiding excessive resistance, greatly improving the stability and ease of operation of glass 5 movement. Supporting glass 5 without significantly hindering its movement improves the smoothness of glass 5 movement.

[0042] Reference Figure 5 , Figure 6 , Figure 8 and Figure 9 The movable hinge seat 34 is connected to a first guide rod 341 that slides with the second support 31; the bottom of the movable hinge seat 34 is provided with a first elastic element 342, and the two ends of the first elastic element 342 are respectively connected to the movable hinge seat 34 and the second support 31.

[0043] This invention utilizes a movable hinge seat 34, a first guide rod 341, and a first elastic element 342 to buffer the impact when the adjusting wheel 311 is subjected to pressure. Furthermore, the adjustable design of the movable hinge seat 34 prevents the adjusting wheel 311 from applying excessive pressure to the glass 5 while simultaneously moving it. By automatically controlling the raising and lowering of the adjusting wheel 311, multiple sets of adjusting wheels 311 can adapt to glass 5 with different curvatures, ensuring stable contact with the glass 5 surface during movement, thereby improving the movement accuracy and positioning accuracy of the glass 5. The bottom of the support seat 331 is equipped with a second guide rod that slides with the third support seat 33, and the support seat 331 is equipped with a third elastic element connected to the third support seat 33. The second guide rod and the third elastic element allow the support ball 333 to provide elastic support to the glass 5. Both the second support seat 31 and the third support seat 33 have built-in small air dampers. When the glass 5 is moved, the adjusting wheel 311 remains in contact with the surface of the glass 5 under the elastic force of the first elastic element 342, which improves the driving stability and also provides stable support for the glass 5. Furthermore, when the glass 5 is placed on the frame 1, the extension and retraction of the first elastic element 342 can also buffer the impact and prevent the glass 5 from being damaged due to excessive local pressure when the placement angle is deviated.

[0044] Reference Figure 5 , Figure 6 and Figure 8A sleeve 321 is fitted onto the drive end of the rotary driver 32; a horizontal plate 322 is provided on the movable hinge seat 34, and a telescopic shaft 3221 that is fitted onto the horizontal plate 322 and engages with the sleeve 321 is rotatably mounted on the horizontal plate 322; a first rotating shaft 323 is rotatably mounted on the movable hinge seat 34, and an adjusting wheel 311 is fitted onto the first rotating shaft 323; a bevel gear 324 is fitted onto both the first rotating shaft 323 and the telescopic shaft 3221, and the two bevel gears 324 are meshed together.

[0045] This invention achieves the function of driving the adjusting wheel 311 to rotate through a sleeve 321, a horizontal plate 322, a telescopic shaft 3221, a first rotating shaft 323, and a bevel gear 324. Furthermore, through the cooperation of the telescopic shaft 3221 and the sleeve 321, the adjusting wheel 311 can still be stably driven to rotate while rising and falling with the extension and retraction of the first elastic element 342. The telescopic shaft 3221 has an elongated groove extending along its axial direction, and the sleeve 321 has a sliding key that mates with the elongated groove. In operation, the controller sends a signal to the rotary driver 32, which drives the sleeve 321 to rotate. The sleeve 321 drives the telescopic shaft 3221 to rotate, which in turn drives the first rotating shaft 323 to rotate via the bevel gear 324, which in turn drives the adjusting wheel 311 to rotate.

[0046] Reference Figure 2 , Figure 3 and Figure 10 The first support arm 2 is provided with a first mounting seat 22; the first mounting seat 22 is provided with a mounting rod 221 that is rotatably connected to the first support 21.

[0047] This invention achieves flexible adjustment of the suction cup 211's angle through a first mounting base 22 and a mounting rod 221. A second rotating shaft 212 is provided on the first base 21, and the suction cup 211 is hinged to the second rotating shaft 212 via a frame. The mounting rod 221 is rotatably connected to the first base 21, allowing the first base 21 to rotate along the axis of the mounting rod 221. This significantly improves the flexibility of the suction cup 211's angle adjustment, enabling the suction cup 211 to stably adhere to the glass 5 surface and provide sufficient suction force.

[0048] Reference Figure 3 and Figure 10 The first mounting base 22 is provided with a mounting cylinder 222, and the mounting rod 221 is slidably mounted on the mounting cylinder 222; the mounting cylinder 222 is provided with a second elastic element 223 connected to the mounting rod 221.

[0049] This invention achieves automatic control of the lifting and lowering of the suction cup 211 through the mounting cylinder 222 and the second elastic element 223. The mounting cylinder 222 contains a miniature hydraulic damper. When adsorbing glass 5, if the curvature of glass 5 is large, a traditional suction cup 211 may not be able to fit well against the surface of glass 5, thus failing to provide sufficient adsorption force. Therefore, through the mounting cylinder 222 and the second elastic element 223, when glass 5 is placed on the frame 1, the first support 21 and the mounting rod 221 can, under the elastic force of the second elastic element 223, move the suction cup 211 closer to the glass 5 and apply a pre-tightening force to the surface of glass 5. This provides a stable adsorption force when adsorbing glass 5, thereby stably clamping the glass 5 for subsequent transfer and processing.

[0050] Reference Figures 1-3 A PU shaping machine with a positioning device includes a worktable 6, on which a tooling 61 for shaping glass 5 is provided; a frame 1 is disposed on the worktable 6.

[0051] This invention sets the frame 1 on the workbench 6, and after accurately positioning the glass 5, simultaneously performs the convergence and shaping of the PU lip using the tooling 61 during the transfer, installation of guide strips, and trimming of the glass 5. This avoids affecting the production cycle and increasing additional labor hours.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A glass positioning device, characterized in that, Includes a frame (1), on which at least three first arms (2) are provided, on which a first support (21) is provided, and on which a suction cup (211) for adsorbing glass (5) is provided. The frame (1) is provided with at least two second arms (3) extending in the horizontal direction, and the extension directions of the two second arms (3) are perpendicular to each other; The second arm (3) is provided with a second support (31), and the second support (31) is provided with an adjusting wheel (311) and a rotary driver (32) for driving the adjusting wheel (311) to rotate. The second arm (3) is provided with a third support (33), and the third support (33) is provided with a support seat (331) for supporting the glass (5). The second arm (3) is equipped with a control mechanism (4) for controlling the lifting and lowering of the support base (331) and the adjusting wheel (311); The control mechanism (4) includes a linear drive (41) and a transmission assembly (42). The linear actuator (41) is used to drive the second support (31) to move up and down in the vertical direction; The third support (33) is connected to the second support (31) via a transmission assembly (42); When the linear actuator (41) drives the second support (31) to rise and fall, the transmission assembly (42) controls the third support (33) to rise and fall in the opposite direction; The transmission assembly (42) includes a fixed hinge seat (421), a connecting rod (422), a second mounting seat (423), and a third mounting seat (424). The fixed hinge seat (421) is mounted on the second arm (3), and the connecting rod (422) is hinged to the fixed hinge seat (421); The second mounting base (423) and the third mounting base (424) are both mounted on the second support arm (3), and the second support (31) and the third support (33) are slidably mounted on the second mounting base (423) and the third mounting base (424) respectively; The second support (31) is provided with a movable hinge seat (34); A straight groove is provided at both ends of the connecting rod (422), and a fixed shaft (425) is provided on both the movable hinge seat (34) and the support seat (331). The two fixed shafts (425) are respectively slidably engaged with the straight grooves at both ends of the connecting rod (422).

2. The glass positioning device according to claim 1, characterized in that, A base (332) is provided on the support seat (331), and a support ball (333) for supporting the glass (5) is hinged inside the base (332).

3. The glass positioning device according to claim 1, characterized in that, The movable hinge seat (34) is connected to a first guide rod (341) that slides with the second support (31); The bottom of the movable hinge seat (34) is provided with a first elastic element (342), and the two ends of the first elastic element (342) are respectively connected to the movable hinge seat (34) and the second support (31).

4. A glass positioning device according to claim 3, characterized in that, A sleeve (321) is fitted onto the drive end of the rotary actuator (32). The movable hinge seat (34) is provided with a horizontal plate (322), and a telescopic shaft (3221) that is sleeved and engaged with the sleeve (321) is rotatably provided on the horizontal plate (322). A first rotating shaft (323) is rotatably mounted on the movable hinge seat (34), and an adjusting wheel (311) is sleeved on the first rotating shaft (323); A bevel gear (324) is fitted on both the first rotating shaft (323) and the telescopic shaft (3221), and the two bevel gears (324) are meshed together.

5. A glass positioning device according to claim 1, characterized in that, The first arm (2) is provided with a first mounting base (22); The first mounting base (22) is provided with a mounting rod (221) that is rotatably connected to the first support (21).

6. A glass positioning device according to claim 5, characterized in that, The first mounting base (22) is provided with a mounting cylinder (222), and the mounting rod (221) is slidably mounted on the mounting cylinder (222); The mounting cylinder (222) is provided with a second elastic element (223) that is connected to the mounting rod (221).

7. A PU shaping machine with a positioning device, employing a glass positioning device as described in any one of claims 1-6, characterized in that, Includes a workbench (6), on which a fixture (61) is provided for shaping the glass (5). The frame (1) is set on the workbench (6).

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