Tempered glass integrated laser forming cutting machine and process thereof

Abstract

The application discloses a tempered glass integrated laser forming and cutting machine, which comprises a rack, a first linear driving mechanism arranged along an X-axis direction, and a second linear driving mechanism arranged along a Y-axis direction, wherein a workbench for bearing tempered glass is installed on the second linear driving mechanism; the application further discloses a tempered glass integrated laser forming and cutting process, which comprises the following steps: S1, workpiece feeding; S2, pre-pressing and fixing; S3, laser forming and cutting; and S4, resetting and discharging. The application has the advantages that the overall structure of the equipment is compact, the transmission is stable and free of impact and vibration, the pre-pressing force can be accurately adjusted, the tempered glass of different thickness specifications can be processed, the equipment has high universality and practicability, and is suitable for industrialized batch production.

Description

Technical Field

[0001] This invention relates to the field of glass laser cutting technology, and in particular to an integrated laser forming and cutting machine for tempered glass and its process. Background Technology

[0002] Tempered glass, with its high strength, impact resistance, and excellent safety performance, is widely used in architectural decoration, home appliance panels, automotive glass, and smart wearables. Currently, tempered glass forming and processing mostly utilizes traditional mechanical cutting wheels or conventional laser cutting equipment to complete the shaping and cutting.

[0003] Currently, conventional laser cutting equipment still has significant drawbacks in actual processing: First, tempered glass is brittle and has slight tolerances in surface flatness. During the cutting process, the glass is easily affected by airflow, thermal stress, and platform movement, resulting in slight warping and displacement, which leads to deviation of the cutting trajectory and low forming accuracy. Second, existing equipment mostly adopts a rigid clamping and positioning structure. Rigid extrusion can easily cause edge chipping, surface damage, and micro-crack propagation in tempered glass, significantly reducing product yield. Third, the positioning and cutting processes of traditional processing equipment are independent and cannot be synchronized. The processing process is cumbersome and the production efficiency is low, making it difficult to meet the integrated forming and processing needs of high-precision, large-volume irregularly shaped tempered glass.

[0004] To address these issues, we propose an integrated laser forming and cutting machine for tempered glass and its associated process. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing an integrated laser forming and cutting machine for tempered glass and its process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tempered glass integrated laser forming and cutting machine includes a frame, a first linear drive mechanism arranged along the X-axis, a second linear drive mechanism arranged along the Y-axis, with the second linear drive mechanism mounted on the first linear drive mechanism, and a worktable for carrying the tempered glass mounted on the second linear drive mechanism.

[0008] The pre-pressure positioning mechanism is integrally assembled on the frame. The pre-pressure positioning mechanism includes two sets of symmetrically arranged push-pull drive components, an upper pre-pressure component and a lower pre-pressure component. The upper pre-pressure component and the lower pre-pressure component are corresponding to the push-pull drive components in opposite positions. The two push-pull drive components are symmetrically arranged on the upper and lower sides of the worktable.

[0009] In the above-mentioned integrated laser forming and cutting machine for tempered glass, the push-pull drive assembly includes a mounting plate, which is fixedly mounted on the frame. A connecting seat is fixedly connected to the mounting plate, and a limit cylinder is installed on the connecting seat. A limit slide rail is also fixedly connected to the side wall of the mounting plate, and a center seat is slidably connected to the limit slide rail. A laser cutting head is installed on the center seat through a fixed seat.

[0010] The center seat is provided with a guide post, and the end of the guide post away from the center seat passes through the limiting cylinder and extends. The guide post is fitted with a return spring, and the return spring is disposed between the center seat and the connecting seat.

[0011] The guide post is rotatably connected to a push wheel at one end away from the center seat. The push-pull drive assembly also includes a push cylinder. A wedge-shaped push block is fixedly connected to the push rod of the push cylinder, and the inclined surface of the wedge-shaped push block rolls against the push wheel.

[0012] In the aforementioned integrated laser forming and cutting machine for tempered glass, both the upper pre-pressing component and the lower pre-pressing component include a hinge seat. The hinge seat is fixedly connected to the side wall of the center seat via an extension frame. Multiple sets of connecting rods are rotatably connected to the hinge seat. Each set of connecting rods is rotatably connected to a pre-pressing roller, and the pre-pressing rollers are arranged radially around the laser cutting head. A connecting spring is installed between each connecting rod and the hinge seat.

[0013] In the aforementioned integrated laser forming and cutting machine for tempered glass, the first linear drive mechanism and the second linear drive mechanism are configured as ball screws driven by servo motors to drive the worktable to move the tempered glass in two dimensions within a plane.

[0014] In the aforementioned integrated laser forming and cutting machine for tempered glass, the pre-pressure roller is a rubber-coated roller, and the surface of the pre-pressure roller is provided with anti-slip texture.

[0015] A laser forming and cutting process for tempered glass includes the following steps:

[0016] S1. Workpiece loading: Place the tempered glass to be processed on worktable 4 to complete the initial positioning;

[0017] S2, Pre-compression fixing: Start the two-sided push cylinders 6, the cylinder push rod drives the wedge push block 7 to move, the wedge push block 7 squeezes the push wheel 5, and drives the guide column 13 and the center seat 16 to slide along the limit slide rail 15; the center seat 16 drives the upper pre-compression component and the lower pre-compression component to approach the tempered glass at the same time, the pre-compression roller 12 presses the glass surface, and the connecting spring 20 achieves flexible clamping.

[0018] S3, Laser forming and cutting: Start the laser cutting head 21, and drive the worktable 4 and glass to move along the preset trajectory through the first linear drive mechanism 2 and the second linear drive mechanism 3 to complete the integrated laser forming and cutting operation;

[0019] S4. Reset and Unloading: After cutting, the cylinder 6 is reset, the wedge-shaped pusher 7 releases pressure on the pusher wheel 5, the reset spring 11 drives the center seat 16 back to its original position, the pre-pressure roller 12 releases the tempered glass, the finished product is removed and the waste is cleaned up.

[0020] In the above-mentioned integrated laser forming and cutting process for tempered glass, in step S3, the laser cutting adopts a pulsed laser with a power of 80-150W and a cutting speed of 100-300mm / s. During the cutting process, protective gas is blown in simultaneously to avoid micro-cracks on the glass edge.

[0021] In the above-mentioned integrated laser forming and cutting process for tempered glass, in step S2, the pre-pressure of the pre-pressure roller 12 is adjusted by the wire diameter and number of turns of the return spring 20, and the pre-pressure is controlled to be 5-20N / roller to adapt to tempered glass of different thicknesses.

[0022] Compared with existing technologies, the beneficial effects of the present invention are as follows:

[0023] 1. This invention features a symmetrical pre-compression positioning mechanism that utilizes a cylinder wedge-shaped inclined surface transmission combined with a double-spring elastic structure to achieve flexible pre-compression positioning on both sides during the tempered glass cutting process. This completely solves the problem of traditional rigid clamping easily damaging the glass and causing chipping and micro-cracks, significantly improving the yield of finished products.

[0024] 2. This invention integrates the laser cutting head and the pre-pressing component into the same central seat, realizing synchronous linkage between pre-pressing positioning and laser cutting. The integrated operation eliminates the separate positioning process, simplifies the processing flow, and significantly improves processing efficiency.

[0025] 3. The present invention adopts a radially surrounding pre-pressure roller structure, combined with an adaptive swinging connecting rod and connecting spring, which can adaptively fit and press according to the slight undulations of the glass surface, effectively suppressing glass warping and displacement during the cutting process, and greatly improving the precision of laser forming and cutting.

[0026] 4. This invention defines specific laser cutting parameters and pre-pressure parameters, and uses protective gas to assist cutting. It is specifically adapted to the characteristics of tempered glass material, effectively suppressing micro-cracks caused by thermal stress, and improving the flatness of the cut surface and the processing quality.

[0027] 5. The equipment has a compact overall structure, smooth transmission, no impact or vibration, and the pre-pressure can be precisely adjusted. It can be adapted to the processing of tempered glass of different thicknesses and specifications, and has strong versatility and practicality, making it suitable for industrial mass production. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an integrated laser forming and cutting machine for tempered glass proposed in this invention;

[0029] Figure 2 The present invention proposes an integrated laser forming and cutting machine for tempered glass. Figure 1 A schematic diagram of the structure after removing the housing portion of the frame;

[0030] Figure 3 This is a schematic diagram of the first linear drive mechanism, the second linear drive mechanism, and the worktable in an integrated laser forming and cutting machine for tempered glass proposed in this invention.

[0031] Figure 4 This is a schematic diagram of the structure of the 3 pre-pressing positioning mechanism in an integrated laser forming and cutting machine for tempered glass proposed in this invention;

[0032] Figure 5 This is an enlarged view of the pre-pressure positioning mechanism in an integrated laser forming and cutting machine for tempered glass proposed in this invention;

[0033] Figure 6 This is an enlarged view of the upper pre-pressing component in an integrated laser forming and cutting machine for tempered glass proposed in this invention;

[0034] Figure 7 This is an enlarged view of the upper pre-pressing component from another angle in the integrated laser forming and cutting machine for tempered glass proposed in this invention;

[0035] Figure 8 This is an enlarged view of the limiting slide rail structure in an integrated laser forming and cutting machine for tempered glass proposed in this invention.

[0036] In the diagram: 1. Frame; 2. First linear drive mechanism; 3. Second linear drive mechanism; 4. Worktable; 5. Push wheel; 6. Push cylinder; 7. Wedge push block; 9. Connecting seat; 10. Limiting cylinder; 11. Return spring; 12. Preload roller; 13. Guide column; 14. Connecting rod; 15. Limiting slide rail; 16. Center seat; 17. Hinge seat; 19. Extension frame; 20. Connecting spring; 21. Laser cutting head; 22. Fixed seat; 23. Mounting plate. Detailed Implementation

[0037] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0038] Example

[0039] Reference Figure 1-8This invention discloses an integrated laser forming and cutting machine for tempered glass, comprising a frame 1, a first linear drive mechanism 2 arranged along the X-axis, and a second linear drive mechanism 3 arranged along the Y-axis, with the second linear drive mechanism 3 mounted on the first linear drive mechanism 2. A worktable 4 for supporting the tempered glass is mounted on the second linear drive mechanism 3. The equipment also includes a pre-pressure positioning mechanism integrally mounted on the frame 1. This pre-pressure positioning mechanism includes two symmetrically arranged push-pull drive components, an upper pre-pressure component, and a lower pre-pressure component. The upper and lower pre-pressure components are correspondingly mounted on the push-pull drive components in opposite positions. The two sets of push-pull drive components are symmetrically arranged on the upper and lower sides of the worktable 4. The frame 1 serves as the supporting base for the entire machine, providing a stable installation reference for each drive mechanism and the pre-pressure positioning mechanism. The symmetrically arranged pre-pressure positioning mechanism can simultaneously apply clamping and limiting forces from the upper and lower surfaces of the tempered glass. Compared with a single-sided positioning method, it can comprehensively suppress warping and offset problems during the glass cutting process, ensuring the stability of the cutting operation.

[0040] The first linear drive mechanism 2 and the second linear drive mechanism 3 of this equipment are set as ball screw structures driven by servo motors. The transmission combination of servo motors and ball screws has the characteristics of high transmission accuracy, smooth operation and small positioning error. It can accurately drive the worktable 4 to move the tempered glass it carries in two-dimensional precision along the X and Y axes in the plane. It can strictly match the preset irregular cutting trajectory, meet the high-precision tempered glass forming and cutting requirements, and effectively avoid the problem of poor cutting accuracy caused by jamming and misalignment in traditional transmission structures.

[0041] Each push-pull drive assembly includes a mounting plate 23, which is fixedly mounted on the frame 1, serving as the overall base for the assembly. A connecting seat 9 is fixedly connected to the mounting plate 23, and a limiting cylinder 10 is fixedly mounted on the connecting seat 9, providing vertical limiting and guiding for the guide column 13. A limiting slide rail 15 is fixedly connected to the side wall of the mounting plate 23, and a center seat 16 is slidably connected to the limiting slide rail 15, restricting the center seat 16 to only horizontal linear sliding, ensuring accurate and non-deviation-free movement trajectory. A laser cutting head 21 is fixedly mounted on the center seat 16 via a fixing seat 22, forming a rigid linkage structure between the laser cutting head 21 and the center seat 16, allowing it to move synchronously with the center seat 16, ensuring that the cutting point and the pre-compression point always correspond precisely.

[0042] A guide post 13 is fixedly installed on the center seat 16. The end of the guide post 13 away from the center seat 16 passes through the limiting cylinder 10 and extends outward, forming a sliding fit structure with the limiting cylinder 10, which further improves the stability of the center seat 16 during the sliding process. A return spring 11 is sleeved on the outside of the guide post 13. The return spring 11 is limited and assembled between the center seat 16 and the connecting seat 9. Under normal conditions, it can maintain the initial reset state of the center seat 16 by its own elasticity. After being pressed and sliding, it can automatically rebound and reset without the need for an additional reset drive structure. At the same time, a push wheel 5 is rotatably connected to the end of the guide post 13 away from the center seat 16. A push cylinder 6 is provided in the push cylinder 6. A wedge-shaped push block 7 is fixedly connected to the push rod of the push cylinder 6. The inclined surface of the wedge-shaped push block 7 rolls and abuts against the push wheel 5. The wedge-shaped push block 7 moves horizontally by the extension and retraction of the cylinder. Using the inclined surface extrusion transmission principle, the push wheel 5, the guide post 13, and the center seat 16 are smoothly pushed and slid as a whole. The rolling abutment method can effectively reduce transmission friction and impact, and ensure smooth and stable pre-pressing action.

[0043] Both the upper and lower pre-compression components include a hinge seat 17, which is fixedly connected to the side wall of the center seat 16 via an extension frame 19 and moves synchronously with the center seat 16 to ensure that the pre-compression structure and the cutting structure move in sync. Multiple sets of freely swingable connecting rods 14 are rotatably connected to the hinge seat 17. Each set of connecting rods 14 has a pre-compression roller 12 rotatably connected to its end. All pre-compression rollers 12 are radially and evenly arranged around the laser cutting head 21, providing all-around wrapping and compression of the glass area around the laser cutting point, precisely suppressing local warping and vibration in the cutting area. Simultaneously, a connecting spring 20 is installed between each connecting rod 14 and the hinge seat 17, providing elastic support for the connecting rod 14. In the current state, the connecting spring 20 pulls the connecting rod 14 inward, so that the pre-pressure roller 12 is in a standby retracted state; when the roller contacts the glass and is pressed, the connecting rod 14 can swing outward adaptively, relying on the elastic force of the connecting spring 20 to achieve flexible fitting and pressing, avoiding rigid compression that could damage the glass. The pre-pressure roller 12 is made of rubber-coated material and has anti-slip texture on its surface, which can further buffer the pressing force, prevent glass damage and chipping, and increase the friction with the glass surface, greatly improving the positioning and fastening performance.

[0044] In standby mode, the push cylinder 6 is in the retracted state, the return spring 11 remains in the freely extended state, the center seat 16 and the overall pre-pressure cutting assembly are in the initial reset position, and the connecting spring 20 pulls the connecting rod 14 inward to keep the pre-pressure roller 12 in the retracted standby state. During the cutting operation, the push cylinder 6 push rod extends, driving the wedge-shaped push block 7 to feed horizontally. Utilizing the inclined working surface of the wedge-shaped push block 7 and the rolling contact with the push wheel 5, the horizontal linear thrust of the cylinder is converted into horizontal sliding force, driving the push wheel 5, guide column 13 and center seat 16 to slide precisely horizontally along the limit slide rail 15, simultaneously compressing the return spring 11 to store energy. The laser cutting head 21 moves closer to the glass workpiece, and the center seat 16 also drives the pre-pressure assembly to move closer to the tempered glass. At this time, the symmetrically distributed pre-pressure rollers 12 simultaneously adhere to the upper and lower surfaces of the glass, relying on the reverse support force of the glass to make the connecting rod 14 adaptively move outward slightly. The swinging motion, with the connecting spring 20 under tension generating a constant elastic preload, achieves flexible clamping on both sides. After cutting, the cylinder 6 is pushed back to its original position, the wedge-shaped push block 7 releases the squeezing limit on the push wheel 5, and the reset spring 11 releases its elastic potential energy, driving the center seat 16, guide column 13, and preload assembly to automatically return to their original positions, achieving automatic reset without power. The transmission process involves rolling coordination without rigid impact, and the operation is smooth and reliable. The connecting seat 9 is fixed on the mounting plate 23, the limiting cylinder 10 is assembled on the connecting seat 9, and the guide column 13 passes through the limiting cylinder 10 to achieve vertical limiting guidance, ensuring structural stability and no deviation during the overall sliding process.

[0045] The center seat 16 is equipped with multiple sets of connecting rods 14 and preload rollers 12 via the extension frame 19 and the hinge seat 17. All the preload rollers 12 are arranged radially around the laser cutting head 21 to form a surrounding full-area preload structure. Each set of connecting rods 14 is equipped with a connecting spring 20 between it and the hinge seat 17 to form an independent elastic swing pair.

[0046] The laser cutting head 21 is rigidly mounted on the center seat 16 via the fixed base 22, maintaining a relatively fixed position with the pre-pressure assembly, thus achieving integrated linkage between the cutting unit and the pre-pressure unit. During the movement of the glass trajectory driven by the worktable 4, multiple sets of pre-pressure rollers 12 around the cutting point adaptively conform to the glass surface throughout the entire process, providing real-time pressure stabilization and constraint around the cutting area, suppressing trajectory deviations caused by thermal stress deformation and mechanical motion jitter.

[0047] This embodiment employs the cutting process achieved by the aforementioned integrated laser forming and cutting machine for tempered glass. The specific processing steps are as follows:

[0048] S1. Workpiece loading: The tempered glass to be processed is placed stably on the worktable 4 to complete the initial positioning. At this time, the push cylinder 6 is in the retracted state, the wedge-shaped push block 7 and the push wheel 5 are not in a squeezing fit, the reset spring 11 and the connecting spring 20 are both in the initial free state, the center seat 16 and the preload roller 12 are in the standby reset state, and the preload roller 12 is retracted away from the workpiece to provide sufficient space for the workpiece to be placed.

[0049] S2. Pre-compression fixing: The push cylinders 6 on both sides of the worktable 4 are activated simultaneously. The cylinder push rods extend and drive the wedge-shaped push blocks 7 to move horizontally. The inclined surfaces of the wedge-shaped push blocks 7 continuously press the push wheels 5, thereby driving the guide column 13 and the center seat 16 to slide smoothly along the limiting slide rail 15. During this process, the return spring 11 is compressed and stores energy. The center seat 16 simultaneously drives the extension frame 19 on the side wall, the hinge seat 17, and the overall pre-compression assembly to move closer to the tempered glass. The pre-compression rollers 12 on both sides simultaneously press against the glass surface. Under the reverse limiting action of the glass, each set of connecting rods 14 rotates outward slightly and opens. The connecting springs 20 are stretched to generate elastic pre-compression, realizing flexible clamping of the tempered glass on both sides. This step can adjust the pre-compression by replacing the connecting springs 20 with different wire diameters and coils, accurately controlling the pre-compression of a single wheel between 5-20N. This can adapt to tempered glass of different thicknesses from 3mm to 12mm, taking into account both clamping stability and non-destructive processing requirements.

[0050] S3. Laser Forming and Cutting: After pre-pressure positioning, the laser cutting head 21 is activated. Simultaneously, the first linear drive mechanism 2 and the second linear drive mechanism 3, in conjunction with the drive worktable 4 and tempered glass, perform precise two-dimensional movement along a preset irregular trajectory, completing the integrated laser forming and cutting operation with the laser cutting head 21. This step uses pulsed laser cutting, with laser power controlled between 80-150W and cutting speed controlled between 100-300mm / s. This parameter range is suitable for the physical properties of tempered glass, effectively avoiding the problems of glass thermal cracking due to excessive laser power and incomplete cutting due to insufficient power. Simultaneously, protective gas is blown into the cutting area during the cutting process to isolate air, reduce thermal stress generated by laser cutting, effectively suppress micro-cracks and edge chipping defects at the glass edges, and improve the flatness of the cut surface. Throughout the cutting process, the pre-pressure roller 12 always adaptively conforms to the glass surface, real-time offsetting workpiece displacement and warping caused by equipment movement and thermal deformation, achieving integrated positioning and cutting operations.

[0051] S4. Reset and Unloading: After the glass forming and cutting operation is completed, the control push cylinder 6 retracts and resets, driving the wedge-shaped push block 7 to retract synchronously, releasing the compression limit on the push wheel 5. At this time, the compressed reset spring 11 releases its elastic potential energy, driving the guide column 13 and the center seat 16 to slide back to their original positions, moving the upper and lower pre-pressure components away from the tempered glass. Simultaneously, the connecting spring 20 retracts and resets, the traction link 14 retracts inward, and the pre-pressure roller 12 completely releases the workpiece. The operator removes the finished tempered glass product and cleans the dust and waste from the worktable 4 and the cutting area, completing a single processing cycle. The equipment returns to its initial standby state and can proceed with the processing of the next batch of workpieces.

[0052] This invention utilizes a cylinder and a wedge-shaped pusher to drive the inclined plane, converting horizontal linear motion into lateral feed motion of the center seat, thus achieving automatic approach and clamping of the pre-compression structure. A return spring enables automatic reset of the entire mechanism, resulting in a simple structure and reliable operation. An adaptive pre-compression structure, composed of connecting rods and springs, allows multiple pre-compression rollers surrounding the laser cutting head to adaptively conform to the minute undulations of the glass surface, achieving full-area flexible clamping and completely avoiding the damage problems associated with rigid clamping. Simultaneously, the laser cutting head and pre-compression structure are integrated and linked, providing real-time positioning to prevent displacement and warping during cutting. Combined with optimized laser process parameters and protective gas assistance, this significantly improves the cutting accuracy and finished product quality of tempered glass, achieving high-precision, damage-free processing.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tempered glass integrated laser forming and cutting machine, comprising a frame (1), a first linear drive mechanism (2) arranged along the X-axis, and a second linear drive mechanism (3) arranged along the Y-axis, wherein the second linear drive mechanism (3) is mounted on the first linear drive mechanism (2), and a worktable (4) for carrying tempered glass is mounted on the second linear drive mechanism (3), characterized in that, Also includes The pre-pressure positioning mechanism is assembled on the frame (1). The pre-pressure positioning mechanism includes two sets of symmetrically arranged push-pull drive components, an upper pre-pressure component and a lower pre-pressure component. The upper pre-pressure component and the lower pre-pressure component are located on the push-pull drive components with corresponding positions. The two push-pull drive components are symmetrically arranged on the upper and lower sides of the worktable (4).

2. The integrated laser forming and cutting machine for tempered glass according to claim 1, characterized in that: Each push-pull drive assembly includes a mounting plate (23), which is fixedly mounted on the frame (1). A connecting seat (9) is fixedly connected to the mounting plate (23), and a limiting cylinder (10) is installed on the connecting seat (9). A limiting slide rail (15) is also fixedly connected to the side wall of the mounting plate (23). A center seat (16) is slidably connected to the limiting slide rail (15), and a laser cutting head (21) is installed on the center seat (16) through a fixing seat (22). The center seat (16) is provided with a guide post (13), and the end of the guide post (13) away from the center seat (16) passes through the limiting cylinder (10) and extends. The guide post (13) is covered with a reset spring (11), and the reset spring (11) is located between the center seat (16) and the connecting seat (9). The guide post (13) is rotatably connected to a push wheel (5) at one end away from the center seat (16). The push-pull drive assembly also includes a push cylinder (6). A wedge-shaped push block (7) is fixedly connected to the push rod of the push cylinder (6), and the inclined surface of the wedge-shaped push block (7) rolls against the push wheel (5).

3. The integrated laser forming and cutting machine for tempered glass according to claim 2, characterized in that: Both the upper pre-compression assembly and the lower pre-compression assembly include a hinge seat (17). The hinge seat (17) is fixedly connected to the side wall of the center seat (16) via an extension frame (19). Multiple sets of connecting rods (14) are rotatably connected to the hinge seat (17). Each set of connecting rods (14) is rotatably connected to a pre-compression roller (12), and the pre-compression rollers (12) are arranged radially around the laser cutting head (21). A connecting spring (20) is installed between each connecting rod (14) and the hinge seat (17).

4. The integrated laser forming and cutting machine for tempered glass according to claim 1, characterized in that: The first linear drive mechanism (2) and the second linear drive mechanism (3) are set as ball screws driven by servo motors to drive the worktable (4) to move the tempered glass in two dimensions within the plane.

5. The tempered glass integrated laser forming and cutting machine and its process according to claim 3, characterized in that: The preload roller (12) is a rubber-coated roller, and the surface of the preload roller (12) is provided with anti-slip texture.

6. A laser forming and cutting process for tempered glass, characterized in that: The tempered glass integrated laser forming and cutting machine according to any one of claims 1-5 includes the following steps: S1. Loading the workpiece: Place the tempered glass to be processed on the worktable (4) to complete the initial positioning; S2, Pre-compression fixing: Start the two-sided push cylinders (6), the cylinder push rod drives the wedge push block (7) to move, the wedge push block (7) squeezes the push wheel (5), and drives the guide column (13) and the center seat (16) to slide along the limit slide rail (15); the center seat (16) drives the upper pre-compression component and the lower pre-compression component to approach the tempered glass at the same time, the pre-compression roller (12) presses the glass surface, and the flexible clamping is achieved by relying on the connecting spring (20); S3, Laser forming and cutting: Start the laser cutting head (21), and drive the worktable (4) and glass to move along the preset trajectory through the first linear drive mechanism (2) and the second linear drive mechanism (3) to complete the integrated laser forming and cutting operation; S4. Reset and unload: After cutting, push the cylinder (6) to reset, the wedge push block (7) releases the pressure on the push wheel (5), the reset spring (11) drives the center seat (16) to return to its original position, the pre-pressing roller (12) releases the tempered glass, remove the finished product and clean up the waste.

7. The integrated laser forming and cutting process for tempered glass according to claim 6, characterized in that: In step S3, the laser cutting uses a pulsed laser with a power of 80-150W and a cutting speed of 100-300mm / s. During the cutting process, protective gas is blown in simultaneously to prevent micro-cracks from forming on the glass edge.

8. The integrated laser forming and cutting process for tempered glass according to claim 6, characterized in that: In step S2, the pre-pressure of the pre-pressure roller (12) is adjusted by the wire diameter and number of turns of the return spring (20) to control the pre-pressure to 5-20N / roller, so as to adapt to tempered glass of different thicknesses.

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