Device for cutting glass tube by laser
By introducing components such as a support platform, positioning plate, and electric push rod into the laser cutting device, the problem of glass tube displacement during the cutting process has been solved, achieving high-precision cutting and automatic chip separation, thus improving cutting quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENFENG (SHENZHEN) LASER TECHNOLOGY CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing laser cutting equipment for glass tubes suffers from a lack of fixation during the cutting process, leading to glass tube displacement, cutting defects, and affecting product quality.
The system employs components such as a support platform, positioning plate, electric push rod, and springs to achieve stable fixation of the glass tube through a combination of gravity and elastic potential energy. It also utilizes a Bezier cutting head and a carbon dioxide cleaving head for precise cutting, while automatically separating debris through a filter plate and a collection frame.
It improves the stability and quality of glass tube cutting, prevents deviation, enhances cutting accuracy and work efficiency, and realizes automatic separation of glass tubes and cutting debris.
Smart Images

Figure CN224258519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser cutting equipment technology, and in particular to a device for laser cutting glass tubes. Background Technology
[0002] Glass tubes are tubular items made of glass, which can be made from various glass materials, such as borosilicate glass and soda-lime glass. In the semiconductor industry, glass tubes used for chip packaging need to be precisely cut at the micron or even nanometer level to ensure that the chip's sealing and performance are not affected. Traditional cutting methods struggle to achieve such high precision, while laser cutting equipment can achieve high-precision cutting by precisely controlling the focusing and movement of the laser beam, meeting these fine processing requirements.
[0003] Place the glass tube on the worktable and fix it in place. Set the laser power, frequency, pulse width, cutting speed, and spot size in the control system according to the material, thickness, and cutting dimensions. Then start the device; the laser generates a laser beam, which is focused onto the surface of the glass tube by the optical system, causing it to absorb heat and melt or vaporize. During cutting, the worktable or glass tube moves along the preset path and speed. After cutting, the laser beam is turned off, the glass tube is removed, cleaned, and inspected; any imperfections can be repaired or polished.
[0004] In existing technologies, some laser cutting devices for glass tubes experience deviations during the laser cutting process, resulting in cutting defects such as uneven and rough edges, burrs, and chipped edges. This affects the overall aesthetics of the product and reduces its quality. Therefore, to address these shortcomings, a laser cutting device for glass tubes is proposed to solve the aforementioned problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a device for laser cutting glass tubes, which aims to improve the problem that some existing laser cutting devices for glass tubes, due to the lack of fixation, cause displacement and affect the cutting quality.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A device for laser cutting glass tubes includes a support platform, a connecting frame fixedly connected to the top side of the support platform, an electric push rod fixedly connected inside the connecting frame, a connecting plate fixedly connected to the drive end of the electric push rod, sliding columns slidably connected to both ends of the connecting plate, springs sleeved on the outside of the sliding columns, an arc-shaped plate fixedly connected to the top side of the sliding columns, and positioning plates fixedly connected to the bottom sides of the two sliding columns. Multiple V-shaped openings are provided on the side of the support platform and the positioning plate adjacent to each other. An adjusting component for adjusting the position of the glass tube is fixedly connected to the top right end of the support platform, a cutting component for cutting fiberglass is fixedly connected to the top right end of the support platform, a driving component for providing power is fixedly connected to the inner wall of the front end of the support platform, and sliding blocks are slidably connected to both ends of the support platform. Push plates are fixedly connected to the top sides of the two sliding blocks.
[0008] As a further description of the above technical solution:
[0009] Support legs are fixedly connected to the four corners of the bottom side of the support platform. Two connecting plates are fixedly connected to the adjacent sides of the multiple support legs. A vertical plate is fixedly connected to the top side of the connecting plate. A drive wheel is fixedly connected to the left side of the drive assembly. A belt is sleeved on the outside of the drive wheel. A driven column is rotatably connected inside the two vertical plates. A driven wheel is fixedly connected to the left end of the driven column. An eccentric wheel is fixedly connected to both ends of the driven column. A guide block is slidably connected inside the support leg. A collection frame is fixedly connected to the adjacent sides of the multiple guide blocks. A filter plate is fixedly connected inside the collection frame. A receiving plate is fixedly connected to the outside of the two support legs.
[0010] As a further description of the above technical solution:
[0011] The adjustment assembly includes a fixed frame, the bottom side of which is fixedly connected to the top side of the support platform, a cylinder one fixedly connected to the top of the fixed frame, a convex plate fixedly connected to the driving end of the cylinder one, a fixed plate fixedly connected to the bottom side of the convex plate, and cylinder two fixedly connected to both the front and rear ends of the bottom side of the fixed plate, with rubber plates fixedly connected to the driving ends of the two cylinders two.
[0012] As a further description of the above technical solution:
[0013] The cutting assembly includes a support frame, the bottom of which is fixedly connected to the top right end of the support platform. An electric guide rail is fixedly connected to the right side of the support frame. The electric guide rail has an internal sliding component with a slider. A side plate is fixedly connected to the right side of the slider. A Bezier cutting head is fixedly connected to the front right side of the side plate via a square plate. A carbon dioxide dicing head is fixedly connected to the middle right side of the side plate via a square plate. A hydraulic cylinder is fixedly connected to the rear right side of the side plate via a square plate. A dicing rod is fixedly connected to the drive end of the hydraulic cylinder.
[0014] As a further description of the above technical solution:
[0015] The drive assembly includes a motor, the right side of which is fixedly connected to the inner wall of the front end of the support platform, and a threaded rod is fixedly connected to the drive end of the motor.
[0016] As a further description of the above technical solution:
[0017] The external thread of the threaded rod is connected to the inside of one of the sliding blocks, and the left side of the threaded rod is fixedly connected to the right side of the drive wheel;
[0018] As a further description of the above technical solution:
[0019] The driven wheel is sleeved inside the belt, and the outer sides of the two eccentric wheels are in contact with the bottom side of the collection frame.
[0020] As a further description of the above technical solution:
[0021] Each of the multiple support legs has a strip-shaped opening on a similar side, and the outside of the guide block is slidably connected to the inside of the strip-shaped opening.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, under the action of gravity, the positioning plate and the V-shaped opening at the bottom are driven to engage with the glass tube and abut against the positioning plate, so that the positioning plate can push the two sliding columns to slide and squeeze the two springs, so that the springs can store elastic potential energy, and then give the positioning plate a force in the opposite direction to fit with the glass tube, avoiding scratches and preventing displacement, thereby improving stability and thus improving cutting quality.
[0024] 2. In this utility model, by driving the driven wheel to rotate, the driven wheel drives the driven column to rotate, which in turn drives the eccentric wheel to push the collection frame to slide up and down repeatedly, and pushes the filter plate to slide up and down repeatedly. By utilizing the filtering and tilting effect of the filter plate, the debris falls into the inside of the collection frame through the filter plate, while the glass tube rolls to the left end of the collection frame for collection, thereby achieving automatic separation of the glass tube and cutting debris, thereby improving work efficiency. Attached Figure Description
[0025] Figure 1 This is a perspective view of a laser-cutting glass tube device according to the present invention.
[0026] Figure 2 This is a schematic diagram of the connecting plate of a laser-cutting glass tube device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the positioning plate of a laser-cutting glass tube device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the connecting plate of a laser-cutting glass tube device proposed in this utility model;
[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0030] Legend:
[0031] 1. Support platform; 2. V-shaped opening; 3. Connecting frame; 4. Electric push rod; 5. Connecting plate; 6. Sliding column; 7. Spring; 8. Arc plate; 9. Positioning plate; 10. Fixing frame; 11. Cylinder 1; 12. Convex plate; 13. Fixing plate; 14. Cylinder 2; 15. Rubber plate; 16. Support frame; 17. Electric guide rail; 18. Slider; 19. Side plate; 20. Bezier cutting head; 21. Carbon dioxide sharding head; 22. Hydraulic cylinder; 23. Pipe splitting rod; 24. Motor; 25. Threaded rod; 26. Sliding block; 27. Push plate; 28. Support leg; 29. Connecting plate; 30. Vertical plate; 31. Drive wheel; 32. Belt; 33. Driven column; 34. Driven wheel; 35. Eccentric wheel; 36. Strip opening; 37. Guide block; 38. Collection frame; 39. Filter plate; 40. Receiving plate. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a laser-cutting glass tube device, comprising a support platform 1. The support platform 1 has sufficient strength and stability to support the weight of the entire cutting device. A connecting frame 3 is fixedly connected to the top side of the support platform 1 by welding, thereby providing support for the connecting frame 3. An electric push rod 4 is fixedly connected inside the connecting frame 3, ensuring stable operation of the electric push rod 4. A connecting plate 5 is fixedly connected to the drive end of the electric push rod 4, driving the connecting plate 5 to slide. Sliding columns 6 are slidably connected to both ends of the connecting plate 5, ensuring stable sliding of the sliding columns 6 by the constraint of the connecting plate 5. A spring 7 is sleeved on the outside of the sliding column 6, ensuring uniform force distribution by constraining the spring 7. An arc-shaped plate 8 is fixedly connected to the top side of the sliding column 6, constraining the sliding column 6 and preventing it from slipping. Positioning plates 9 are fixedly connected to the bottom sides of the two sliding columns 6 by welding, providing stable support for the positioning plates 9. Multiple V-shaped openings 2 are provided on the adjacent side of the support platform 1 and the positioning plate 9. The V-shaped openings 2 are used to restrict the engagement of the glass tube and prevent it from shifting during the cutting process.
[0034] Reference Figure 1 and Figure 2An adjustment assembly for adjusting the position of the glass tube is fixedly connected to the top right end of the support platform 1. The adjustment assembly is used to rotate the glass tube by 90 degrees. The adjustment assembly includes a fixing frame 10, the bottom of which is fixed to the top side of the support platform 1 using welding technology, thus providing stable support for the fixing frame 10. A cylinder 11 is fixedly connected to the top of the fixing frame 10, providing a driving source. A convex plate 12 is fixedly connected to the driving end of the cylinder 11, driving the convex plate 12 to slide back and forth by activating the cylinder 11. A fixing plate 13 is fixedly connected to the bottom side of the convex plate 12 using welding technology, enabling the convex plate 12 to drive the fixing plate 13 to slide synchronously. Cylinders 14 are fixedly connected to both the front and rear ends of the bottom side of the fixing plate 13, providing a driving source. Rubber plates 15 are fixedly connected to the drive ends of the two cylinders 14. Activating cylinders 14 drives the rubber plates 15 to slide downwards and fit against the glass tube. Cylinders 14 also drive the rubber plates 15 to slide back and forth, allowing for fine-tuning of the glass tube's position. A cutting assembly for cutting fiberglass is fixedly connected to the top right end of the support platform 1. This cutting assembly integrates various cutting tools.
[0035] The cutting assembly includes a support frame 16, the bottom of which is fixed to the top right end of the support platform 1 via welding, providing stable support for the support frame 16. An electric guide rail 17 is fixedly connected to the right side of the support frame 16 via welding, providing stable support for the electric guide rail 17. The electric guide rail 17 has an internal sliding component with a slider 18, which slides within the electric guide rail 17 via a rail. A side plate 19 is fixedly connected to the right side of the slider 18, causing the side plate 19 to slide synchronously. A Bezier cutting head 20 is fixedly connected to the front right side of the side plate 19 via a square plate, utilizing the Bezier curve principle for cutting glass tubes. A carbon dioxide cleaver head 21 is fixedly connected to the middle right side of the side plate 19 via a square plate, using the energy of a carbon dioxide laser to create cracks in the glass tube, facilitating subsequent cutting operations. A hydraulic cylinder 22 is fixedly connected to the rear right side of the side plate 19 via a square plate, providing the driving source. A tube-cracking rod 23 is fixedly connected to the drive end of the hydraulic cylinder 22. Under the drive of the hydraulic cylinder 22, the glass tube is cracked, so that the glass tube that did not fall off after cutting can fall off.
[0036] Reference Figure 1 , Figure 4 and Figure 5A drive assembly providing power is fixedly connected to the inner wall of the front end of the support platform 1. The drive assembly includes a motor 24, which provides the drive source. The right side of the motor 24 is fixedly connected to the inner wall of the front end of the support platform 1, ensuring a stable drive source. A threaded rod 25 is fixedly connected to the drive end of the motor 24, driving the threaded rod 25 to rotate when the motor 24 is started. Sliding blocks 26 are slidably connected to both the front and rear ends of the support platform 1, allowing the two sliding blocks 26 to slide stably due to the constraint of the support platform 1. The external thread of the threaded rod 25 is connected to the inside of one of the sliding blocks 26, converting the rotational motion of the threaded rod 25 into the linear motion of the sliding block 26 through the threaded engagement. Push plates 27, made of metal, are fixedly connected to the top sides of the two sliding blocks 26, allowing them to move on the support platform 1 and push the glass tube to the cutting position. Support legs 28 are fixedly connected to the four corners of the bottom side of the support platform 1, providing stable support for the entire cutting device. Two connecting plates 29 are fixedly connected to the adjacent sides of multiple support legs 28 by welding, thereby providing stable support for the connecting plates 29;
[0037] A square upright plate 30 is fixedly connected to the top side of the connecting plate 29. A drive wheel 31 is fixedly connected to the left side of the drive assembly, and a threaded rod 25 is fixedly connected to the right side of the drive wheel 31 on the left side, allowing the threaded rod 25 to drive the drive wheel 31 to slide synchronously. A belt 32 is fitted around the drive wheel 31 to transmit power. Driven columns 33 are rotatably connected inside the two upright plates 30, allowing them to rotate stably. A driven wheel 34 is fixedly connected to the left end of the driven column 33, driving the driven column 33 to rotate synchronously. The driven wheel 34 is fitted inside the belt 32, transmitting rotational force to the driven wheel 34. Eccentric wheels 35 are fixedly connected to both ends of the driven column 33, driving the two eccentric wheels 35 to rotate synchronously.
[0038] Multiple support legs 28 each have a rectangular, rectangular, strip-shaped opening 36 on one adjacent side. A guide block 37 is slidably connected inside each support leg 28, sliding within the support leg 28 through the strip-shaped opening 36. The guide block 37 is also slidably connected to the inside of the strip-shaped opening 36, with a tight fit to ensure stable sliding within the opening 36. A collection frame 38 is fixedly connected to one adjacent side of each guide block 37. The collection frame 38 collects glass debris and glass tubes generated during cutting. Two eccentric wheels 35 are in close contact with the bottom of the collection frame 38, providing vertical vibration power to the collection frame 38 during rotation, allowing the debris and glass tubes to be utilized. A filter plate 39 is fixedly connected inside the collection frame 38, filtering cutting debris and separating welding particles and the cut glass tubes. Two of the support legs 28 are externally fixedly connected to receiving plates 40, which are used to receive the cut glass tubes for easy collection and sorting by operators.
[0039] Working principle: First, the glass tube is placed in the V-shaped opening 2 on the surface of the support platform 1. At this time, the electric push rod 4 is activated to drive the connecting plate 5 to slide downward. Then, under the action of gravity, the positioning plate 9 and the bottom V-shaped opening 2 are engaged with the glass tube and will press against the positioning plate 9, so that the positioning plate 9 can push the two sliding columns 6 to slide and squeeze the two springs 7. The springs 7 can store elastic potential energy, and then give the positioning plate 9 a force in the opposite direction to fit against the glass tube, avoiding scratches and preventing displacement, thereby improving stability and cutting quality.
[0040] Simultaneously, motor 24 is started to drive threaded rod 25 to rotate, which in turn drives one of the sliding blocks 26 to slide, thereby driving push plate 27 to slide to the right and pushing glass tube to slide to the right for feeding. At this time, Bezier cutting head 20 starts working using the Bezier curve principle to perform preliminary cutting on glass tube. Then, carbon dioxide cleaving head 21 also starts working, using the energy of carbon dioxide laser to act on glass tube, causing cracks to appear on the surface of glass tube. Under the action of electric guide rail 17, it drives slider 18 to slide, thereby driving side plate 19 to slide, and then driving Bezier cutting head 20 and carbon dioxide cleaving head 21 to move. The glass tube splitter 21 and the glass tube splitter 23 slide together. After both the Bezier cutting head 20 and the carbon dioxide splitter 21 have finished working, the hydraulic cylinder 22 drives the glass tube splitter 23 to press against the glass tube and drop it onto the electric push rod 4. The glass then falls onto the filter plate 39 along with the receiving plate 40, accompanied by cutting debris. The second cylinder 14 drives the rubber plate 15 to slide downward and press against the glass tube. Then, the first cylinder 11 drives the convex plate 12 to slide. The sliding force is transmitted to the rubber plate 15 through the fixed plate 13, so that the rubber plate 15 can push the glass tube to rotate 90 degrees. This process is repeated four times.
[0041] Meanwhile, the threaded rod 25 drives the drive wheel 31 to rotate, which in turn drives the belt 32 to rotate, which in turn drives the driven wheel 34 to rotate. The driven wheel 34 drives the driven column 33 to rotate, which in turn drives the eccentric wheel 35 to push the collection frame 38 to slide up and down, and pushes the filter plate 39 to slide up and down. Utilizing the filtering and tilting effect of the filter plate 39, the debris falls into the inside of the collection frame 38 through the filter plate 39, while the glass tube rolls to the left end of the collection frame 38 for collection, thereby achieving automatic separation of the glass tube and cutting debris, and thus improving work efficiency.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for laser cutting a glass tube comprising a support table (1), characterized in that: A connecting frame (3) is fixedly connected to the top side of the support platform (1). An electric push rod (4) is fixedly connected inside the connecting frame (3). A connecting plate (5) is fixedly connected to the driving end of the electric push rod (4). Sliding columns (6) are slidably connected to both the front and rear ends of the connecting plate (5). A spring (7) is sleeved on the outside of the sliding column (6). An arc plate (8) is fixedly connected to the top side of the sliding column (6). A positioning plate (9) is fixedly connected to the bottom side of the two sliding columns (6). Multiple V-shaped openings (2) are provided on the side of the positioning plate (9). An adjustment component for adjusting the position of the glass tube is fixedly connected to the top right end of the support platform (1). A cutting component for cutting fiberglass is fixedly connected to the top right end of the support platform (1). A driving component for providing power is fixedly connected to the inner wall of the front end of the support platform (1). Sliding blocks (26) are slidably connected to both the front and rear ends of the support platform (1). Push plates (27) are fixedly connected to the top sides of the two sliding blocks (26).
2. An apparatus for laser cutting a glass tube as claimed in claim 1, wherein: Support legs (28) are fixedly connected to the four corners of the bottom side of the support platform (1). Two connecting plates (29) are fixedly connected to the adjacent side of the multiple support legs (28). A vertical plate (30) is fixedly connected to the top side of the connecting plate (29). A drive wheel (31) is fixedly connected to the left side of the drive assembly. A belt (32) is sleeved on the outside of the drive wheel (31). A driven column (33) is rotatably connected inside the two vertical plates (30). A driven wheel (34) is fixedly connected to the left end of the driven column (33). An eccentric wheel (35) is fixedly connected to both the left and right ends of the driven column (33). A guide block (37) is slidably connected inside the support leg (28). A collection frame (38) is fixedly connected to the adjacent side of the multiple guide blocks (37). A filter plate (39) is fixedly connected inside the collection frame (38). A receiving plate (40) is fixedly connected to the outside of the two support legs (28).
3. An apparatus for laser cutting a glass tube as claimed in claim 1, wherein: The adjustment assembly includes a fixed frame (10), the bottom side of which is fixedly connected to the top side of the support platform (1), a cylinder (11) is fixedly connected to the top of the fixed frame (10), a convex plate (12) is fixedly connected to the driving end of the cylinder (11), a fixed plate (13) is fixedly connected to the bottom side of the convex plate (12), and cylinders (14) are fixedly connected to both the front and rear ends of the bottom side of the fixed plate (13), and rubber plates (15) are fixedly connected to the driving ends of the two cylinders (14).
4. An apparatus for laser cutting a glass tube as defined in claim 1, wherein: The cutting assembly includes a support frame (16), the bottom side of which is fixedly connected to the top right end of the support platform (1). An electric guide rail (17) is fixedly connected to the right side of the support frame (16). The electric guide rail (17) has an internal sliding component with a slider (18). A side plate (19) is fixedly connected to the right side of the slider (18). A Bezier cutting head (20) is fixedly connected to the front right side of the side plate (19) via a square plate. A carbon dioxide dicing head (21) is fixedly connected to the middle right side of the side plate (19) via a square plate. A hydraulic cylinder (22) is fixedly connected to the rear right side of the side plate (19) via a square plate. A dicing rod (23) is fixedly connected to the driving end of the hydraulic cylinder (22).
5. An apparatus for laser cutting a glass tube as defined in claim 2, wherein: The drive assembly includes a motor (24), the right side of which is fixedly connected to the inner wall of the front end of the support platform (1), and the drive end of the motor (24) is fixedly connected to a threaded rod (25).
6. An apparatus for laser cutting a glass tube as defined in claim 5, wherein: The external thread of the threaded rod (25) is connected to the interior of one of the sliding blocks (26), and the left side of the threaded rod (25) is fixedly connected to the right side of the drive wheel (31).
7. An apparatus for laser cutting a glass tube as defined in claim 2, wherein: The driven wheel (34) is sleeved inside the belt (32), and the two eccentric wheels (35) are in contact with the bottom side of the collection frame (38).
8. An apparatus for laser cutting a glass tube as defined in claim 2, wherein: Each of the multiple support legs (28) has a strip-shaped opening (36) on a similar side, and the outside of the guide block (37) is slidably connected to the inside of the strip-shaped opening (36).