Glass cutting and breaking device and breaking method thereof

Abstract

The invention belongs to the technical field of glass fragmentation, and particularly discloses a glass cutting and breaking-off device and a breaking-off method thereof.The device comprises a transverse moving base, a lifting support, a cutting device, a gas conveying head, a transmission mechanism and the like. Through the meshing design of a transmission gear, a first toothed plate and a second toothed plate, precise and synchronous movement of the first support and the second support in the cutting process is achieved, and the cutting stability and accuracy are improved; a weight balancing assembly is arranged to reduce the load of the lifting driving device, reduce energy consumption and prolong the service life of equipment; the transverse movement driving assembly and the longitudinal movement driving device enable the cutting device to move flexibly, and the cutting requirements of glass of different sizes and shapes are met; the method comprises the steps of cutting pre-positioning, positioning pre-cutting, cutting, breaking and resetting, and by accurately establishing a machining coordinate system and a feeding coordinate system, the cutting precision is ensured, the cutting depth and track can be ensured, the glass breaking difficulty is reduced, and the glass cutting precision, efficiency and automation level are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass slicing, and particularly relates to a glass cutting and breaking device and a breaking method thereof. Background Art

[0002] As a core component of intelligent terminal devices, the cutting accuracy and edge quality of display glass directly affect the product yield and display effect. The traditional cutting and breaking process relies on manual operation or independently operating cutting and breaking devices, which have problems such as poor equipment coordination and low motion control accuracy. In the prior art, the movements of the cutting device, dust suction device, and breaking device mostly adopt independent drive systems, resulting in difficulties in synchronizing the fixation of the glass and the cutting action during cutting, and defects such as glass offset and skewed cutting lines are likely to occur; at the same time, during the breaking stage, due to the lack of precise linkage with the cutting trajectory, quality problems such as chipping and uneven crack propagation often occur, affecting the yield and processing efficiency of display glass. Summary of the Invention

[0003] In view of the above-mentioned various problems of the prior art, a glass cutting and breaking device and a breaking method thereof are now proposed. The present invention provides the following technical solutions:

[0004] A glass cutting and breaking device includes a transverse movement base, on which a lifting bracket is horizontally movably connected. A lifting drive device is installed on the lifting bracket, and the lower side of the lifting drive device is drivingly connected to a mounting seat. A drive shaft that rotates around a longitudinal horizontal axis is installed on the mounting seat, and a transmission gear is fixedly installed on the drive shaft; a first bracket and a second bracket are vertically slidably connected to the lifting bracket. An air supply head for providing positive pressure or negative pressure rotates around a longitudinal horizontal axis on the first bracket. A cutting device for cutting glass and a longitudinal movement drive device for driving the cutting device to move longitudinally are longitudinally movably connected to the second bracket; a first toothed plate is fixedly connected to the first bracket, and a second toothed plate is fixedly connected to the second bracket. The first toothed plate and the second toothed plate are vertically arranged on both sides of the transmission gear and mesh with the transmission gear.

[0005] Preferably, a locking device for locking the drive shaft to prevent its rotation is installed on the mounting seat.

[0006] Preferably, a first weight balance component for balancing the weight of the first bracket and a second weight balance component for balancing the weight of the second bracket are installed on the lifting bracket.

[0007] Preferably, the first weight balance assembly includes a first mounting base and a first elastic damper. The upper end of the first bracket is provided with a first fixing plate for mounting and fixing the first elastic damper. The first mounting base is fixedly connected to the lifting bracket. The upper and lower ends of the first elastic damper are respectively connected to the first fixing plate and the first mounting base. The second weight balance assembly includes a second mounting base and a second elastic damper. The upper end of the second bracket is provided with a second fixing plate for mounting and fixing the second elastic damper. The second mounting base is fixedly connected to the lifting bracket. The upper and lower ends of the second elastic damper are respectively connected to the second fixing plate and the second mounting base.

[0008] Preferably, the first weight balance assembly includes a first fixed pulley, a first pulley bracket, a first traction belt, and a first counterweight for balancing the weight of the first bracket. The first pulley bracket is fixedly connected to the lifting bracket. The first fixed pulley is rotatably connected to the first pulley bracket. One end of the first traction belt is connected to the first bracket, and the other end is connected to the first counterweight. The second weight balance assembly includes a second fixed pulley, a second pulley bracket, a second traction belt, and a second counterweight for balancing the weight of the second bracket. The second pulley bracket is fixedly connected to the lifting bracket. The second fixed pulley is rotatably connected to the second pulley bracket. One end of the second traction belt is connected to the second bracket, and the other end is connected to the second counterweight.

[0009] Preferably, a transverse movement driving assembly is installed on the transverse movement base. The transverse movement driving assembly includes a transverse movement motor and a transverse movement shaft seat. A transverse movement lead screw is rotatably connected to the transverse movement shaft seat. The transverse movement motor is drivingly connected to the transverse movement lead screw. A transverse movement seat is threadedly connected to the transverse movement lead screw. The lifting bracket is fixedly installed on the transverse movement seat.

[0010] Preferably, a backing plate for abutting against the glass is connected to the gas delivery head on the side away from the second bracket.

[0011] A method for cutting and breaking glass, the steps of which include:

[0012] S1. Cutting pre-positioning;

[0013] Adjust the horizontal position of the lifting base on the transverse movement base;

[0014] S2. Positioning pre-cutting;

[0015] Drive the drive shaft downward through the lifting drive device until the cutting device abuts against the glass:

[0016] S21: The first bracket and the second bracket move downward simultaneously;

[0017] S22: The first bracket abuts against the glass, the first bracket stops moving, and the transmission gear rotates to drive the second bracket to move downward;

[0018] S23: The cutting device is started and its cutting end abuts against the glass;

[0019] S3. Cutting;

[0020] The air supply head provides negative pressure to the cutting part. The driving gear rotates to drive the second bracket to move downward to provide cutting pressure. While the cutting device cuts the glass, it moves on the upper surface of the glass through the longitudinal movement driving device and the transverse movement driving assembly;

[0021] S4. Breaking and resetting;

[0022] The lifting driving device drives the first bracket and the second bracket to move upward simultaneously. After separating from the glass, the air supply head intermittently provides negative pressure to the glass to segment the glass. After segmentation, the first bracket and the second bracket continue to move upward and finally abut against the lifting bracket to achieve resetting.

[0023] Preferably, before cutting pre-positioning, the complete contour line and the tool path contour line of the glass to be processed are preset in the database, and at the same time, the longitudinal movement driving device and the transverse movement driving assembly are driven to make the cutting device cut along the tool path contour line.

[0024] Preferably, an auxiliary air supply part is installed on the lower side of the second bracket. The auxiliary air supply part is arranged on the side of the cutting end of the cutting device far from the first bracket. In step S4, the auxiliary air supply part provides positive pressure to the glass.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Through the meshing design of the driving gear with the first toothed plate and the second toothed plate, the relative rest and unilateral rest of the first bracket and the second bracket are accurately and synchronously controlled, simplifying the equipment structure and cutting action, making the cutting process smoother, ensuring stability and accuracy, and improving the cutting quality;

[0027] 2. The first weight balance assembly and the second weight balance assembly installed on the lifting bracket effectively reduce the load of the lifting driving device, reduce energy consumption, extend the service life of the equipment, and at the same time make the movement of the first bracket and the second bracket smoother and more stable, reducing shaking and deviation, and further improving the cutting accuracy;

[0028] 3. The flexible cushion plate connected to the air supply head plays a buffering role when the air supply head is about to and has not yet abutted against the glass, avoiding damage to the glass surface, adapting to different thicknesses of glass at the same time, ensuring good contact between the air supply head and the glass, improving the air supply effect, and ensuring the smooth progress of the cutting and breaking processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the front view structural schematic diagram of Embodiment 1 of the present invention;

[0030] Figure 2 It is a schematic diagram of the overall three-dimensional structure of Embodiment 1 of the present invention;

[0031] Figure 3 It is another schematic diagram of the overall three-dimensional structure of Embodiment 1 of the present invention;

[0032] Figure 4 It is a schematic diagram of the method flow of the present invention;

[0033] In the drawings, 1 is a transverse movement base; 2 is a lifting bracket; 3 is a first bracket; 31 is a first guide rod; 32 is a first toothed plate; 4 is a second bracket; 41 is a second guide rod; 42 is a second toothed plate; 5 is a lifting drive device; 6 is a mounting seat; 7 is a drive shaft; 8 is a transmission gear; 9 is a cutting device; 10 is an air supply head; 11 is a first weight balance assembly; 111 is a first fixing plate; 112 is a first elastic damping member; 113 is a first mounting base; 12 is a second weight balance assembly; 121 is a second fixing plate; 122 is a second elastic damping member; 123 is a second mounting base; 13 is a backing plate; 14 is a longitudinal movement lead screw; 15 is a longitudinal movement seat; 16 is a transverse movement lead screw; 17 is a transverse movement seat. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. The directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only references to the directions in the drawings. Therefore, the directional terms used are for illustration rather than limitation of the present invention.

[0035] Embodiment 1

[0036] A glass cutting and breaking device includes a transverse moving base 1 which can be erected and installed on the frame of a conveying device. A lifting bracket 2 is horizontally movably connected to the transverse moving base 1. A lifting driving device 5 is installed on the lifting bracket 2. A mounting seat 6 is driven and connected to the lower side of the lifting driving device 5. A driving shaft 7 which rotates around a longitudinal horizontal axis is installed on the mounting seat 6. Transmission gears 8 are fixedly installed at the longitudinal two ends of the driving shaft 7. A first bracket 3 and a second bracket 4 are vertically slidably connected to the lifting bracket 2. The longitudinal two ends of the first bracket 3 are vertically slidably connected to the lifting bracket 2 through first guide rods 31. The longitudinal two ends of the second bracket 4 are vertically slidably connected to the lifting bracket 2 through second guide rods 41. An air supply head 10 which rotates around a longitudinal horizontal axis and is used for providing positive pressure or negative pressure is installed on the first bracket 3. A cutting device 9 which is used for cutting glass and a longitudinal moving driving device which is used for driving the cutting device 9 to move longitudinally are longitudinally movably connected to the second bracket 4. A first toothed plate 32 is fixedly connected to the first bracket 3. A second toothed plate 42 is fixedly connected to the second bracket 4. The first toothed plate 32 and the second toothed plate 42 are vertically arranged on both sides of the transmission gear 8 and mesh with the transmission gear 8. Through the meshing design of the transmission gear 8 with the first toothed plate 32 and the second toothed plate 42, the relative static state and the unilateral static state of the first bracket 3 and the second bracket 4 can be accurately and synchronously controlled during the cutting process, and the other side moves. The structure of the device and the cutting action are simplified, the cutting process is made more smooth, and the stability and accuracy are ensured, and the cutting quality is improved.

[0037] Among them, the cutting device 9 only needs to be able to cut glass, and existing mature cutting devices 9 or cutting units can be adopted. When arranging, the cutting end is arranged downward. Among them, the lifting driving device 5 can adopt a cylinder or a linear motor, and two of them are longitudinally symmetrically arranged. The lifting bracket 2 is of a square table type structure and is subjected to a hollowing and weight reduction treatment.

[0038] Furthermore, a first weight balance component 11 which is used for balancing the weight of the first bracket 3 and a second weight balance component 12 which is used for balancing the weight of the second bracket 4 are installed on the lifting bracket 2. The load of the lifting driving device 5 can be effectively reduced, the energy consumption can be reduced, the service life of the device can be prolonged, and at the same time, the movement of the first bracket 3 and the second bracket 4 is made more stable and smooth, and the shaking and deviation caused by uneven weight are reduced, and the cutting accuracy is further improved.

[0039] Specifically, the first weight balance assembly 11 includes a first mounting base 113 and a first elastic damper 112. The first bracket 3 is provided with a first fixing plate 111 for mounting and fixing the first elastic damper 112 at the upper end of the first guide rod 31. The first mounting base 113 is fixedly connected to the lifting bracket 2. The upper and lower ends of the first elastic damper 112 are respectively connected to the first fixing plate 111 and the first mounting base 113. The second weight balance assembly 12 includes a second mounting base 123 and a second elastic damper 122. The second bracket 4 is provided with a second fixing plate 121 for mounting and fixing the second elastic damper 122 at the upper end of the second guide rod 41. The second mounting base 123 is fixedly connected to the lifting bracket 2. The upper and lower ends of the second elastic damper 122 are respectively connected to the second fixing plate 121 and the second mounting base 123.

[0040] Specifically, both the first elastic damper 112 and the second elastic damper 122 are springs, which can automatically adjust according to the weight changes of the first bracket 3 and the second bracket 4, provide stable balance force, and have low cost, easy to maintain and replace.

[0041] Furthermore, a transverse movement drive assembly is installed on the transverse movement base 1. The transverse movement drive assembly includes a transverse movement motor and a transverse movement shaft seat. A transverse movement lead screw 16 is rotatably connected to the transverse movement shaft seat. The transverse movement motor is drivingly connected to the transverse movement lead screw 16. A transverse movement seat 17 is threadedly connected to the transverse movement lead screw 16. The lifting bracket 2 is fixedly installed on the transverse movement seat 17, enabling the lifting bracket 2 to accurately perform transverse movement on the transverse movement base 1, realizing the cutting operation of the cutting device 9 at different positions, improving the flexibility and applicability of the equipment, and meeting the cutting requirements of glass with different sizes and shapes.

[0042] Specifically, the longitudinal movement drive device includes a longitudinal movement motor, a longitudinal movement lead screw 14, a longitudinal movement shaft seat and a longitudinal movement seat 15. The longitudinal movement motor and the longitudinal movement shaft seat are fixedly installed on the second bracket 4. The longitudinal movement motor is drivingly connected to the longitudinal movement lead screw 14. The longitudinal movement lead screw 14 is rotatably connected to the longitudinal movement shaft seat. The longitudinal movement seat 15 is threadedly connected to the longitudinal movement lead screw 14 and is slidably connected to the second bracket 4 through a cross section. The cutting device 9 is fixed on the longitudinal movement seat 15, and can drive the cutting device 9 to perform longitudinal movement on the second bracket 4. Cooperating with the transverse movement drive assembly, the cutting device 9 can perform precise feed cutting on the glass surface, realizing cutting of various complex shapes, greatly improving the cutting accuracy and efficiency.

[0043] Further, a backing plate 13 for abutting against the glass is connected to the gas supply head 10 on the side away from the second support 4. Specifically, the backing plate 13 is made of a flexible material, such as a foam pad, which has a certain deformation stroke. It plays a buffering role when the gas supply head 10 is about to but has not yet abutted against the glass, avoiding damage to the glass surface. At the same time, its deformation stroke can adapt to glasses of different thicknesses, ensuring good contact between the gas supply head 10 and the glass, improving the gas supply effect, and ensuring the smooth progress of the cutting and breaking processes.

[0044] Further, an auxiliary gas supply member is installed on the lower side of the second support 4. The auxiliary gas supply member is arranged on the side of the cutting end of the cutting device 9 away from the first support 3. During the cutting process, it can provide additional air flow assistance, helping to remove the glass debris generated by cutting and reducing the influence of the debris on the cutting process. At the same time, when breaking the glass, the positive pressure provided by the auxiliary gas supply member can better cooperate with the negative pressure of the gas supply head 10, making the glass segmentation more smooth, and improving the success rate and quality of breaking.

[0045] Further, an x-axis position sensing device is arranged on the lifting support 2, and a y-axis position sensing device is arranged on the cutting device 9. Its position sensing technology is a conventional technology and will not be elaborated here. In addition, an image sensor is arranged on the cutting device 9 for identifying the edge contour of the glass below, enabling the device to monitor the position information of the cutting device 9 and the lifting support 2 in real time, as well as accurately identify the edge contour of the glass, providing strong support for the precise positioning and automatic control of cutting, and improving the intelligent level and cutting accuracy of the device.

[0046] Embodiment 2

[0047] The difference from Embodiment 1 is that the first weight balance assembly 11 includes a first fixed pulley, a first pulley support, a first traction belt, and a first counterweight for balancing the weight of the first support 3. The first pulley support is fixedly connected to the lifting support 2, the first fixed pulley is rotatably connected to the first pulley support, one end of the first traction belt is connected to the first support 3, and the other end is connected to the first counterweight; the second weight balance assembly 12 includes a second fixed pulley, a second pulley support, a second traction belt, and a second counterweight for balancing the weight of the second support 4. The second pulley support is fixedly connected to the lifting support 2, the second fixed pulley is rotatably connected to the second pulley support, one end of the second traction belt is connected to the second support 4, and the other end is connected to the second counterweight. Compared with the elastic damping member method in Embodiment 1, it has a more stable balancing effect, can accurately balance the weights of the first support 3 and the second support 4, reduce the minute deviation caused by weight changes, further improve the cutting accuracy and stability. At the same time, the design of the counterweight makes the operation of the device more stable and reduces the noise.

[0048] Embodiment 3

[0049] A glass cutting and breaking method, the steps of which include:

[0050] S0: Before the cutting pre-positioning, the complete contour line and the tool path contour line of the glass to be processed are preset in the database. The edge contour line of the glass below is identified by the image sensor, and the benchmark of the complete contour line is determined based on the edge contour line of the glass below. The specific method is as follows: Take the part of the complete contour line excluding the tool path contour line and the side that conforms to the edge contour line as the reference line, take one end point of the reference line in the incoming material direction as the processing coordinate origin, take the outermost tangent line of the reference line that passes through the processing coordinate origin as the y-axis direction, and obtain the x-axis perpendicular to the y-axis. The positive direction of the x-axis can be selected to face the direction of the tool path contour line, and a two-dimensional processing coordinate system is established. The coordinates of the tool path contour line on the processing coordinate system can be obtained; take the position of the lifting bracket 2 on the transverse base 1 as the X-axis coordinate, take the position of the cutting device 9 on the second bracket 4 as the Y-axis coordinate, and take the mechanical limit position as the origin to obtain the tool path coordinate system.

[0051] S1. Cutting pre-positioning;

[0052] Adjust the lateral position of the lifting base on the transverse base 1 to determine the processing coordinate system and position it to one end point of the tool path contour line; ensure that the cutting device 9 starts cutting from the correct starting position to avoid cutting failure or quality problems caused by deviation of the cutting starting position and improve the reliability of cutting.

[0053] S2. Pre-cutting positioning;

[0054] Drive the drive shaft 7 to move downward through the lifting drive device 5 until the cutting device 9 abuts against the glass:

[0055] S21: The first bracket 3 and the second bracket 4 move downward simultaneously;

[0056] The first bracket 3 abuts against the glass, the first bracket 3 stops moving, and the transmission gear 8 rotates to drive the second bracket 4 to move downward;

[0057] The cutting device 9 is started and its cutting end abuts against the glass;

[0058] S3. Cutting;

[0059] The air supply head 10 provides negative pressure to the cutting part, and the transmission gear 8 rotates to drive the second bracket 4 to move downward to provide the cutting pressure (the pressure acting on the glass when the cutting device 9 cuts the glass). While the cutting device 9 cuts the glass, it moves on the upper surface of the glass through the longitudinal movement drive device and the transverse movement drive assembly: As is known by common sense, there is a mapping relationship between the tool path coordinate system and the processing coordinate system, and the coordinates of the tool path contour line on the tool path coordinate system can be obtained through this mapping relationship. According to these coordinates, the longitudinal movement drive device and the transverse movement drive assembly are driven simultaneously to make the cutting device 9 cut along the tool path contour line.

[0060] S4. Breaking and resetting;

[0061] The auxiliary air supply component provides positive pressure to the glass. The lifting drive device 5 drives the first bracket 3 and the second bracket 4 to move upward simultaneously. After separating from the glass, the air supply head 10 provides intermittent negative pressure to the glass to segment the glass (i.e., break the glass). After segmentation, the first bracket 3 and the second bracket 4 continue to move upward and finally abut against the lifting bracket 2 to achieve reset. The provision of positive pressure helps to assist in the breaking of the glass and improve the success rate of breaking. The design of intermittent negative pressure can more accurately control the segmentation position of the glass and reduce the risk of glass fragmentation during the breaking process. The reset process ensures that the equipment returns to the initial state, prepares for the next cutting operation, and improves the automation degree and working efficiency of the equipment.

[0062] Embodiment 4

[0063] On the basis of the above embodiment, a locking device for locking the drive shaft 7 to prevent its rotation is installed on the mounting seat 6. Specifically, the locking device uses a drive motor. By the drive motor, self-locking and driving the drive shaft 7 to rotate are realized, and it can be realized that the first bracket 3 moves upward while the second bracket 4 moves downward, or the first bracket 3 moves downward while the second bracket 4 moves upward; when cutting the glass, the drive motor makes the first bracket 3 move upward while the second bracket 4 moves downward, so as to provide greater cutting pressure, facilitate increasing the cutting depth, and reduce the difficulty of breaking the glass.

Claims

1. A glass cutting and breaking device, characterized in that, It includes a transverse base (1), on which a lifting bracket (2) is movably connected horizontally. A lifting drive device (5) is installed on the lifting bracket (2). The lower side of the lifting drive device (5) is drivingly connected to a mounting seat (6). A drive shaft (7) that rotates about a longitudinal horizontal axis is installed on the mounting seat (6). A transmission gear (8) is fixedly installed on the drive shaft (7). A first bracket (3) and a second bracket (4) are vertically slidably connected to the lifting bracket (2). An air supply head (10) for providing positive pressure or negative pressure rotates about a longitudinal horizontal axis on the first bracket (3). A cutting device (9) for cutting glass and a longitudinal movement drive device for driving the cutting device (9) to move longitudinally are movably connected longitudinally to the second bracket (4). A first toothed plate (32) is fixedly connected to the first bracket (3), and a second toothed plate (42) is fixedly connected to the second bracket (4). The first toothed plate (32) and the second toothed plate (42) are vertically arranged on both sides of the transmission gear (8) and mesh with the transmission gear (8).

2. The glass cutting and breaking device according to claim 1, wherein A locking device for locking the drive shaft (7) to prevent it from rotating is installed on the mounting seat (6).

3. The glass cutting and breaking device according to claim 1, characterized in that, A first weight balance assembly (11) for balancing the weight of the first bracket (3) and a second weight balance assembly (12) for balancing the weight of the second bracket (4) are installed on the lifting bracket (2).

4. The glass cutting and breaking device according to claim 3, characterized in that, The first weight balance assembly (11) includes a first mounting base (113) and a first elastic damping member (112). A first fixing plate (111) for installing and fixing the first elastic damping member (112) is installed at the upper end of the first bracket (3). The first mounting base (113) is fixedly connected to the lifting bracket (2). The upper and lower ends of the first elastic damping member (112) are respectively connected to the first fixing plate (111) and the first mounting base (113). The second weight balance assembly (12) includes a second mounting base (123) and a second elastic damping member (122). A second fixing plate (121) for installing and fixing the second elastic damping member (122) is installed at the upper end of the second bracket (4). The second mounting base (123) is fixedly connected to the lifting bracket (2). The upper and lower ends of the second elastic damping member (122) are respectively connected to the second fixing plate (121) and the second mounting base (123).

5. The glass cutting and breaking device according to claim 3, characterized in that, The first weight balancing component (11) includes a first fixed pulley, a first pulley bracket, a first traction belt, and a first counterweight for balancing the weight of the first bracket (3). The first pulley bracket is fixedly connected to the lifting bracket (2), the first fixed pulley is rotatably connected to the first pulley bracket, one end of the first traction belt is connected to the first bracket (3), and the other end is connected to the first counterweight. The second weight balancing component (12) includes a second fixed pulley, a second pulley bracket, a second traction belt, and a second counterweight for balancing the weight of the second bracket (4). The second pulley bracket is fixedly connected to the lifting bracket (2), the second fixed pulley is rotatably connected to the second pulley bracket, one end of the second traction belt is connected to the second bracket (4), and the other end is connected to the second counterweight.

6. The glass cutting and breaking device according to claim 1, wherein, A transverse movement drive assembly is installed on the transverse movement base (1). The transverse movement drive assembly includes a transverse movement motor and a transverse movement shaft seat. A transverse movement lead screw (16) is rotatably connected to the transverse movement shaft seat. The transverse movement motor is drivingly connected to the transverse movement lead screw (16). A transverse movement seat (17) is threadedly connected to the transverse movement lead screw (16). The lifting bracket (2) is fixedly installed on the transverse movement seat (17).

7. The glass cutting and breaking device according to claim 1, characterized in that, On one side of the gas supply head (10) away from the second bracket (4), a backing plate (13) for abutting against the glass is connected.

8. A glass cutting and breaking method, characterized in that, Using the glass cutting and breaking device as described in claim 1, the steps include: S1. Cutting pre-positioning; Adjust the lateral position of the lifting base on the transverse movement base (1); S2. Pre-cutting positioning; Drive the drive shaft (7) to move downward through the lifting drive device (5) until the cutting device (9) abuts against the glass: S21: The first bracket (3) and the second bracket (4) move downward simultaneously; S22: The first bracket (3) abuts against the glass, the first bracket (3) stops, and the transmission gear (8) rotates to drive the second bracket (4) to move downward; S23: The cutting device (9) is started and its cutting end abuts against the glass; S3. Cutting; The gas supply head (10) provides negative pressure to the cutting part. The transmission gear (8) rotates to drive the second bracket (4) to move downward to provide cutting pressure. While the cutting device (9) cuts the glass, it moves on the upper surface of the glass through the longitudinal movement drive device and the transverse movement drive assembly; S4. Breaking and resetting; The lifting drive device (5) drives the first bracket (3) and the second bracket (4) to move upward simultaneously. After separating from the glass, the gas supply head (10) intermittently provides negative pressure to the glass to segment the glass. After segmentation, the first bracket (3) and the second bracket (4) continue to move upward and finally abut against the lifting bracket (2) to achieve reset.

9. The glass cutting and breaking method according to claim 8, wherein, Before cutting pre-positioning, the complete contour line and the tool path contour line of the glass to be processed are preset in the database. At the same time, the longitudinal movement drive device and the transverse movement drive assembly are driven to make the cutting device (9) cut along the tool path contour line.

10. The glass cutting and breaking method according to claim 8, wherein An auxiliary gas supply member is installed on the lower side of the second bracket (4). The auxiliary gas supply member is arranged on the side of the cutting end of the cutting device (9) away from the first bracket (3). In step S4, the auxiliary gas supply member provides positive pressure to the glass.

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