Windshield cutting device

Abstract

The present invention discloses a windshield cutting device, which belongs to the technical field of cutting equipment, and includes a cutting table and a material shifting mechanism. The cutting table includes a track and a cutting nozzle that can move along the track; the material shifting mechanism includes a lifting part, a rotating part and a positioning seat, and a plurality of adsorption holes that penetrate the positioning seat are opened on the positioning seat; a positioning rod is passed through the adsorption hole, and a suction cup is arranged at the end of the positioning rod. The lifting part provided in the present invention cooperates with the rotating part, so that the positioning seat can be moved to the top of the stacked windshield semi-finished products, and when the positioning rod moves on the adsorption hole, the suction cup can contact the windshield semi-finished products and adsorb the windshield semi-finished products. When the positioning rod rises, the windshield semi-finished products can be lifted and made to fit the bearing surface of the positioning seat, so as to complete the positioning of the windshield semi-finished products; the lifting part cooperates with the rotating part to move the positioning seat to the corresponding position of the cutting table, and the cutting nozzle moves and sprays flames to complete the flame cutting of the windshield semi-finished products.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, and in particular to a windshield cutting device. Background Art

[0002] The windshield of the electric tricycle is made of a rectangular metal plate that is pressed into shape by a stamping machine and then cut and trimmed. During the stamping process, the rectangular metal plate is subjected to uneven force at various locations, so there is a circle of irregular wrinkles on the edge of the windshield after stamping, so it is necessary to cut and trim the edge of the material.

[0003] In order to reduce the space occupied by the workpiece, the semi-finished windshields after stamping are generally stacked. When cutting, they need to be manually removed from the stacked material pile one by one, and then placed on the cutting fixture. After the cutting is completed, the cut material edges need to be manually separated from the windshields and placed separately. This process significantly increases the intensity of manual labor. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a windshield cutting device that can automatically load and unload materials and complete the positioning and cutting of workpieces.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a windshield cutting device, comprising:

[0006] A cutting table, the cutting table comprising a track and a cutting nozzle capable of moving along the track, the cutting nozzle being used for spraying flame;

[0007] A material transfer mechanism, the material transfer mechanism comprising a lifting part, a rotating part and a positioning seat, the lifting part is arranged on the base, the rotating part is rotatably mounted on the lifting part, and the positioning seat is arranged on the rotating part;

[0008] Among them, the bearing surface of the positioning seat is adapted to the shape of the wind shield, and a plurality of adsorption holes that penetrate the positioning seat are opened on the bearing surface; a positioning rod is passed through the adsorption hole, and the positioning rod and the adsorption hole are slidably and sealedly matched, and a suction cup is provided at the end of the positioning rod, and the suction cup is connected to the first air pump, and the adsorption hole is connected to the second air pump, and a floating connection structure is provided between the suction cup and the positioning rod.

[0009] Preferably, a first sealing ring sleeved on a positioning rod is provided in the adsorption hole, a piston is fixed on the positioning rod, the piston is slidably sealed in the adsorption hole, and the inner cavity of the adsorption hole between the first sealing ring and the piston is connected to the third air pump.

[0010] Preferably, a spacer is fixed in the adsorption hole on the side of the piston away from the first sealing ring, a second sealing ring mounted on the positioning rod is arranged in the spacer, an air hole connected to the inner cavity of the adsorption hole between the piston and the second sealing ring is opened on the positioning seat, and the second air pump is connected to the inner cavity of the adsorption hole on the side of the spacer away from the air hole.

[0011] Preferably, the floating connection structure comprises a bellows fixed on the positioning rod and a ball joint seat fixed on the bellows, and a spherical portion mounted on the ball joint seat is fixed on the suction cup.

[0012] Preferably, the positioning rod is cylindrical, the suction cup is connected to an air pipe, and the air pipe passes through the ball joint seat, the bellows and the positioning rod in sequence and then is connected to the first air pump.

[0013] Preferably, a slide is slidably mounted on the track, a horizontal moving unit is fixed on the slide, a vertical moving unit is fixed to the movable end of the horizontal moving unit, and the cutting nozzle is fixed to the movable end of the vertical moving unit.

[0014] Preferably, the horizontal moving unit comprises:

[0015] A fixed seat, wherein the fixed seat is fixed on the sliding seat;

[0016] A guide rod, the guide rod is slidably mounted on a fixed seat, and a connecting plate is fixed to the end of the guide rod;

[0017] A motor, wherein the motor is fixed on a fixing seat;

[0018] A screw rod is connected to the output shaft of the motor, the screw rod is parallel to the guide rod, and the screw rod is matched with the connecting plate thread.

[0019] Preferably, a motor is fixed on the slide seat, a gear ring is provided on the track, and a gear meshing with the gear ring is fixed on the output shaft of the motor.

[0020] Preferably, a sealing ring is fixed to the edge of the adsorption hole on the bearing surface.

[0021] The beneficial effects of the present invention are as follows: the material moving mechanism provided in the present invention can remove the semi-finished windshields from the stacked semi-finished windshields one by one, that is, the lifting part cooperates with the rotating part to move the positioning seat to the top of the stacked semi-finished windshields, and when the positioning rod moves on the adsorption hole, the suction cup can contact the semi-finished windshield and adsorb the semi-finished windshield; when the positioning rod rises, the semi-finished windshield can be lifted and made to fit the bearing surface of the positioning seat, thereby completing the positioning of the semi-finished windshield, and the second air pump can evacuate the adsorption hole, thereby identifying whether the semi-finished windshield is fixed in place by judging whether the adsorption hole and the semi-finished windshield are in a sealed state; the lifting part cooperates with the rotating part to move the positioning seat to the corresponding position of the cutting table, the cutting nozzle moves and sprays flame, thereby completing the flame cutting of the semi-finished windshield, reducing the labor intensity of workers and making the cutting position more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional diagram of the overall structure of a windshield cutting device provided in an embodiment of the present invention.

[0024] Figure 2 It is a top view of the overall structure of the present invention.

[0025] Figure 3 This is a three-dimensional diagram of the positioning seat of the present invention from a top-down perspective.

[0026] Figure 4 This is a three-dimensional diagram of the positioning seat of the present invention when viewed from above.

[0027] Figure 5 It is a top view of the positioning seat of the present invention.

[0028] Figure 6 for Figure 5 Cross-sectional view at AA in the middle.

[0029] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0030] Figure 8 Schematic diagram of a semi-finished windshield.

[0031] Description of reference numerals:

[0032] 1. Base, 2. Track, 3. Cutting nozzle, 4. Lifting part, 5. Rotating part, 6. Positioning seat, 7. Bearing surface, 8. Adsorption hole, 9. Positioning rod, 10. Suction cup, 11. First sealing ring, 12. Piston, 13. Spacer, 14. Second sealing ring, 15. Air vent, 16. Bellows, 17. Crossbeam, 18. Ball joint seat, 19. Spherical part, 20. Air pipe, 21. Sliding seat, 22. Fixed seat, 23. Guide rod, 24. Second motor, 25. Screw, 26. Connecting plate, 27. Third motor, 28. Gear ring, 29. Sealing ring, 30. First motor, 31. First connecting pipe, 32. Second connecting pipe, 33. Wind shield semi-finished product. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figures 1 to 7 As shown, the present invention provides a windshield cutting device for cutting Figure 8 The material edge of the semi-finished windshield 33 is shown. The specific structure of the present invention includes a cutting table and a material moving mechanism, wherein the material moving mechanism is used to pick up the semi-finished windshields 33 from the stacked semi-finished windshields 33 one by one, and then transfer the semi-finished windshields 33 to the position of the cutting table, wait for the cutting nozzle 3 on the cutting table to spray flame, flame cut the semi-finished windshield 33, and then move the processed windshields to the finished product area for stacking.

[0036] like Figure 1 As shown, the cutting table of the present invention includes a track 2, a support frame is fixed below the track 2, a slide 21 is slidably mounted on the track 2, and the slide 21 can move on the track 2. The movement of the slide 21 on the track 2 can be achieved in the following manner, such as installing a roller at the bottom of the slide 21, the roller is pressed against the track 2, and a motor for driving the roller to rotate is installed on the slide 21, so that when the motor is working, the slide 21 can be driven to move on the track 2 by the rotation of the roller.

[0037] The cutting nozzle 3 is arranged on the slide 21 and can move with the slide 21. If the path of the slide rail matches the path of the edge of the semi-finished windshield 33 to be cut, then when the semi-finished windshield 33 is fixed on the cutting station, the slide 21 moves on the track 2, and the cutting nozzle 3 can be brought to cut the semi-finished windshield 33.

[0038] The material transfer mechanism of the present invention includes a lifting part 4, a rotating part 5 and a positioning seat 6, wherein the lifting part 4 can be a hydraulic cylinder vertically fixed on the base 1, but it should be noted that the hydraulic cylinder needs to have a guide mechanism so that the piston 12 of the hydraulic cylinder will not rotate under the action of external force. The rotating part 5 includes a crossbeam 17, which is rotatably mounted on the lifting part 4, and a first motor 30 for driving the crossbeam 17 to rotate on the lifting part 4 is installed on the lifting part 4, and the positioning seat 6 is fixed to one end of the crossbeam 17.

[0039] like Figure 4 As shown, the bearing surface 7 of the positioning seat 6, that is, the surface that cooperates with the semi-finished windshield 33, has a shape that is adapted to the shape of the windshield. At the same time, six adsorption holes 8 that penetrate the positioning seat 6 are opened on the bearing surface 7. The adsorption holes 8 are stepped, and a positioning rod 9 is movably inserted in the adsorption hole 8. The positioning rod 9 and the adsorption hole 8 are slidingly sealed by a first sealing ring 11 arranged in the adsorption hole 8. At the same time, a suction cup 10 is arranged at the lower end of the positioning rod 9. The inner cavity of the suction cup 10 is connected to the first air pump through the air pipe 20. The first air pump is not drawn in the attached figure. The first air pump can be connected to the air pipes 20 of six suction cups 10 at the same time. In this way, the working state of the suction cup 10 can be controlled by controlling the air intake and air outlet of the first air pump. As shown Figure 6 As shown, the positioning seat 6 is provided with an air passage connected to the inner cavity of the adsorption hole 8 between the first sealing ring 11 and the bearing surface 7. The six air passages are all sealed and connected to the second air pump through the second connecting pipe 32. The second air pump is also not drawn. In this way, when the second air pump is pumping air, the air pressure in the adsorption hole 8 will also decrease, so that it also has adsorption capacity. A floating connection structure is provided between the suction cup 10 and the positioning rod 9. The cylinder can be fixedly installed on the positioning seat 6, and the end of the positioning rod 9 away from the suction cup 10 is connected to the cylinder. In this way, by controlling the operation of the cylinder, the lifting and lowering of the positioning rod 9 can be driven.

[0040] When in use, the positioning rod 9 descends, so that the suction cup 10 contacts the surface of the windshield semi-finished product 33, and then the first air pump works, so that the suction cup 10 is adsorbed on the windshield semi-finished product 33, and then the cylinder works, the positioning rod 9 rises, and the windshield semi-finished product 33 is lifted. Since the bearing surface 7 is adapted to the shape of the windshield, it can play a positioning role.

[0041] If the semi-finished windshield 33 has been properly fitted with the bearing surface 7, the adsorption hole 8 will be in close contact with the semi-finished windshield 33, and there will be greater resistance when the second air pump is pumping air, which can be used to determine whether the semi-finished windshield 33 is correctly positioned; if the semi-finished windshield 33 is not properly fitted with the bearing surface 7, there will be a certain gap between the adsorption hole 8 and the semi-finished windshield 33, and the resistance encountered by the second air pump when pumping air will be small, which can be used to determine whether the semi-finished windshield 33 is correctly positioned. At the same time, since both the suction cup 10 and the adsorption hole 8 adsorb the semi-finished windshield 33, a double adsorption force is formed at the same position, which can enhance the overall adsorption stability and reduce the risk of the suction cup 10 falling off.

[0042] Embodiment 2:

[0043] Based on the first embodiment, the present invention proposes a second embodiment. In this embodiment, considering that the stacked windshield semi-finished products 33 have a certain deviation in the position of each windshield semi-finished product 33, when the positioning rod 9 of the present invention is lowered, the suction cup 10 cannot be adsorbed to the same position on the windshield semi-finished product 33 every time, and the windshield surface has a concave and convex shape, so the lifting distance of each positioning rod 9 is different. In order to allow the positioning rod 9 to have a certain floating space for lifting, such as Figure 6 As shown, in this embodiment, the cylinder is not installed on the positioning seat 6, but the piston 12 is fixed on the positioning rod 9, and the piston 12 is slidably sealed in the inner cavity of the adsorption hole 8 on the side of the first sealing ring 11 close to the bearing surface 7, and the positioning seat 6 is provided with an air channel connected to the inner cavity of the adsorption hole 8 between the first sealing ring 11 and the piston 12, and the six air channels are connected to the third air pump through the first connecting pipe 31. The third air pump is also not drawn. In this way, when the third air pump takes in and out air, it can change the air pressure in the six adsorption holes 8, thereby controlling the movement of the piston 12 in the adsorption hole 8. Since the piston 12 is fixed to the positioning rod 9, the positioning rod 9 can be raised and lowered under the action of the third air pump, so that the suction cup 10 at the end of the positioning rod 9 can be against the windshield semi-finished product 33 below.

[0044] Since the inner cavities between the piston 12 and the first sealing ring 11 in the six adsorption holes 8 are connected to the third air pump, and the gas is compressible, when the suction cup 10 on the positioning rod 9 abuts against the windshield semi-finished product 33, when the third air pump continues to supply air, the remaining positioning rods 9 can continue to descend until the suction cups 10 on all the positioning rods 9 abut against the windshield semi-finished product 33.

[0045] The first air pump, the second air pump and the third air pump of the present invention are all air pumps with air extraction and air delivery capabilities.

[0046] like Figure 6 and Figure 7As shown, the floating connection structure between the suction cup 10 and the positioning rod 9 includes a bellows 16, a spherical portion 19 and a ball joint seat 18. Among them, the spherical portion 19 is fixed on the suction cup 10, and the ball joint seat 18 is sleeved on the spherical portion 19. At the same time, the two ends of the bellows 16 are respectively fixedly connected to the ball joint seat 18 and the positioning rod 9. In this way, when the positioning rod 9 descends, since the suction cup 10 is installed on the ball joint seat 18, the suction cup 10 can rotate freely within a certain range, which makes it easier for the suction cup 10 to fit on the surface of the semi-finished windshield 33. The positioning rod 9 is cylindrical, and the air pipe 20 passes through the ball joint seat 18, the bellows 16 and the positioning rod 9 in turn, and is connected to the first air pump. The bellows 16 also has a certain torsion and bending ability, which further enhances the adaptability of the suction cup 10, making it easier to resist the surface of the semi-finished windshield 33. When the first air pump is pumping air, the suction cup 10 will be adsorbed on the surface of the semi-finished windshield 33.

[0047] When the third air pump is pumping air, the piston 12 moves upward, which causes the positioning rod 9 to move upward accordingly, and the suction cup 10 lifts the windshield semi-finished product 33 until the windshield contacts the bearing surface 7 .

[0048] like Figure 6 As shown, a spacer sleeve 13 is fixed in the adsorption hole 8 on the side of the piston 12 away from the first sealing ring 11, and a second sealing ring 14 is provided in the spacer sleeve 13 and sleeved on the positioning rod 9. The positioning seat 6 is also provided with an air vent 15 connected to the inner cavity of the adsorption hole 8 between the piston 12 and the second sealing ring 14, and the second air pump is connected to the inner cavity of the adsorption hole 8 on the side of the spacer sleeve 13 away from the air vent 15. In this way, when the third air pump is pumping or discharging air, the piston 12 moves in the adsorption hole 8, but it does not affect the pressure in the inner cavity of the adsorption hole 8 between the spacer sleeve 13 and the bearing surface 7; similarly, when the second air pump changes the pressure in the inner cavity of the adsorption hole 8 on the side of the spacer sleeve 13 away from the air vent 15, it will not affect the piston 12.

[0049] In order to increase the sealing performance of the adsorption hole 8 when it is attached to the windshield semi-finished product 33, as shown in FIG. Figure 4 As shown, a rubber sealing ring 29 is fixed to the edge of the adsorption hole 8 located on the bearing surface 7 .

[0050] Since the suction cup 10 can be twisted in a small range relative to the positioning rod 9, even if the stacked windshield semi-finished product 33 has a small deviation in position, the windshield will gradually press against the bearing surface 7 and automatically adjust to the correct position under the drag of the suction cup 10. The second air pump can determine whether the windshield semi-finished product 33 is fixed in place by detecting the pressure change in the inner cavity of the adsorption hole 8 between the spacer 13 and the windshield semi-finished product 33.

[0051] Embodiment three:

[0052] On the basis of the first and second embodiments, considering that the edge shape of the semi-finished windshield 33 is relatively complex, and in order to allow the cutting nozzle 3 to accurately cut along the shape of the semi-finished windshield 33, the present invention designs the track 2 to be annular, and fixes a horizontal moving unit on the slide 21. The horizontal moving unit includes a fixed seat 22 fixed on the slide 21 and a guide rod 23 slidably mounted on the fixed seat 22. A second motor 24 is fixed to the fixed seat 22, and a screw rod 25 parallel to the guide rod 23 is fixed to the output shaft of the second motor 24, and a connecting plate 26 is fixed to the end of the guide rod 23, and the connecting plate 26 is threadedly engaged with the screw rod 25. In this way, when the second motor 24 is working, it will drive the screw rod 25 to rotate, and then the connecting plate 26 will move along the screw rod 25, thereby driving the guide rod 23 to move horizontally on the fixed seat 22. As shown in FIG. Figure 1 and Figure 2 As shown, the guide rod 23 can move along the diameter direction of the rail 2.

[0053] In addition, a vertical moving unit is fixed at the end of the guide rod 23, and its structure is the same as that of the horizontal moving unit, except that the guide rod 23 in the vertical moving unit is parallel to the axis of the track 2. The cutting nozzle 3 is fixed on the guide rod 23 in the vertical moving unit.

[0054] In order to enable the slide 21 to move along the track 2, the present invention fixes a third motor 27 on the slide 21, a gear is fixed on the output shaft of the third motor 27, and a gear ring 28 meshing with the gear is provided on the track 2. When the third motor 27 is working, the gear rolls on the gear ring 28, thereby driving the slide 21 to move along the track 2.

[0055] The first motor 30, the second motor 24 and the third motor 27 of the present invention are all servo motors, which can accurately control the rotation of the output shaft. Therefore, by controlling the speed and direction of the second motor 24 and the third motor 27, the cutting nozzle 3 can be accurately moved along the shape of the edge of the windshield, and the windshield can be efficiently cut.

[0056] When in use, firstly, the first motor 30 is used to control the crossbeam 17 to rotate, so that the positioning seat 6 moves to the top of the stacked windshield semi-finished product 33. Then, the lifting part 4 drives the crossbeam 17 to rise and fall, so that the positioning seat 6 is close to the windshield semi-finished product 33. Next, the third air pump is started to lower the positioning rod 9, so that the suction cup 10 is in contact with the surface of the windshield semi-finished product 33. Then, the first air pump is started to firmly adsorb the suction cup 10 on the windshield semi-finished product 33. After that, the third air pump works again to drive the positioning rod 9 to rise, so that the windshield semi-finished product 33 fits the bearing surface 7. In this process, the second air pump can first intermittently blow air to the adsorption hole 8, and the airflow blows from the adsorption hole 8 to the windshield semi-finished product 33, so that it shakes slightly, so that it is easier to match and fit the bearing surface 7 during the rising process. After that, the second air pump is evacuated, so that the adsorption hole 8 is adsorbed on the windshield semi-finished product 33, and the precise positioning of the windshield semi-finished product 33 on the positioning seat 6 is completed.

[0057] Next, the lifting part 4 and the crossbeam 17 work together to move the positioning seat 6 to the cutting station in the center of the circular track 2. At this time, the cutting nozzle 3 starts to move and accurately cuts the semi-finished windshield 33. The cut edge will fall directly, while the finished windshield is still firmly adsorbed on the positioning seat 6. After that, the crossbeam 17 and the lifting part 4 move again to transport the finished windshield to the finished product stacking area. Finally, the first air pump and the second air pump blow air at the same time, so that the finished windshield is smoothly separated from the suction cup 10 and the adsorption hole 8, and is stacked in the finished product area.

[0058] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A windshield cutting device, characterized in that: include: A cutting table, the cutting table comprising a track (2) and a cutting nozzle (3) capable of moving along the track (2), the cutting nozzle (3) being used for spraying flames; A material transfer mechanism, the material transfer mechanism comprising a lifting part (4), a rotating part (5) and a positioning seat (6), the lifting part (4) being arranged on the base (1), the rotating part (5) being rotatably mounted on the lifting part (4), and the positioning seat (6) being rotatably mounted on the rotating part (5); The bearing surface (7) of the positioning seat (6) is adapted to the shape of the windshield plate, and a plurality of adsorption holes (8) penetrating the positioning seat (6) are provided on the bearing surface (7); a positioning rod (9) is passed through the adsorption hole (8), and the positioning rod (9) and the adsorption hole (8) are slidably sealed, and a suction cup (10) is provided at the end of the positioning rod (9), and the suction cup (10) is connected to the first air pump, and the adsorption hole (8) is connected to the second air pump, and a floating connection structure is provided between the suction cup (10) and the positioning rod (9); A first sealing ring (11) sleeved on a positioning rod (9) is arranged in the adsorption hole (8); a piston (12) is fixed on the positioning rod (9); the piston (12) is slidably sealed in the adsorption hole (8); and an inner cavity of the adsorption hole (8) between the first sealing ring (11) and the piston (12) is connected to a third air pump; A spacer (13) is fixed in the adsorption hole (8), and the spacer (13) is located on the side of the piston (12) away from the first sealing ring (11). A second sealing ring (14) sleeved on the positioning rod (9) is arranged in the spacer (13). The positioning seat (6) is provided with an air vent (15) which is connected to the inner cavity of the adsorption hole (8) between the piston (12) and the second sealing ring (14). The second air pump is connected to the inner cavity of the adsorption hole (8) on the side of the spacer (13) away from the air vent (15). The floating connection structure comprises a bellows (16) fixed on the positioning rod (9) and a ball joint seat (18) fixed on the bellows (16); a spherical portion (19) mounted on the ball joint seat (18) is fixed on the suction cup (10); The positioning rod (9) is cylindrical, the suction cup (10) is connected to an air pipe (20), and the air pipe (20) passes through the ball joint seat (18), the bellows (16) and the positioning rod (9) in sequence and is then connected to the first air pump; A sealing ring (29) is fixed to the edge of the adsorption hole (8) located on the bearing surface (7).

2. A windshield cutting device as claimed in claim 1, characterized in that: A slide seat (21) is slidably mounted on the track (2), a horizontal moving unit is fixed on the slide seat (21), a vertical moving unit is fixed to the movable end of the horizontal moving unit, and the cutting nozzle (3) is fixed to the movable end of the vertical moving unit.

3. A windshield cutting device as claimed in claim 2, characterized in that: The horizontal moving unit comprises: A fixed seat (22), wherein the fixed seat (22) is fixed on the sliding seat (21); A guide rod (23), the guide rod (23) being slidably mounted on the fixed seat (22), and a connecting plate (26) being fixed to an end of the guide rod (23); A motor, the motor being fixed on a fixing seat (22); A screw rod (25), the screw rod (25) is connected to the output shaft of the motor, the screw rod (25) is parallel to the guide rod (23), and the screw rod (25) is threadedly matched with the connecting plate (26).

4. A windshield cutting device as claimed in claim 2, characterized in that: A motor is fixed on the slide seat (21), a gear ring (28) is provided on the track (2), and a gear meshing with the gear ring (28) is fixed on the output shaft of the motor.

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