A stainless steel sheet laser cutting positioning fixture

Abstract

The utility model relates to laser cutting processing technical field, and disclose a kind of stainless steel sheet laser cutting positioning fixture, including shell, the surface of shell is equipped with several rod grooves, the telescopic rod is slidably connected in rod groove, the inside of shell is equipped with the driving assembly of the synchronous drive to several telescopic rods, one end of telescopic rod is fixedly equipped with support ring, the top of support ring is fixedly equipped with suction cup, the top of suction cup is fixedly equipped with rubber ring, the bottom of shell is fixedly equipped with base;Stainless steel sheet can be supported by suction cup, the setting of rubber ring can protect stainless steel sheet, can prevent stainless steel sheet surface abrasion, and can guarantee the degree of fit of contact surface, air can be discharged in hollow air cylinder and hose inside by air pump, so that its inside is in negative pressure state, suction cup can adsorb stainless steel sheet by negative pressure, i.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting processing technology, specifically a positioning fixture for laser cutting of stainless steel thin plates. Background Technology

[0002] Laser cutting is a thermal processing method that uses a high-energy-density laser beam to irradiate a workpiece, causing the irradiated area to melt, vaporize, or reach its ignition point rapidly. At the same time, a high-speed airflow blows away the molten material, thereby achieving precision cutting. For thin stainless steel sheets, laser cutting has significant advantages such as high cutting accuracy, narrow kerf, small deformation, and fast cutting speed. It can efficiently process complex contours and does not require molds, making it a flexible, non-contact, high-quality cutting process.

[0003] In laser cutting of stainless steel sheets, traditional fixtures often use a fixed frame with adjustable pressure edge, which has problems such as cumbersome adjustment, interference with the cutting path, and difficulty in adapting to continuous changes in size. Although there are some movable positioning and clamping devices in the existing technology, they usually require independent adjustment of each clamping point, which is inefficient and makes it difficult to ensure the accuracy of synchronous movement of multiple clamping points. This can easily lead to deformation of the sheet due to uneven force, and the operation is also cumbersome.

[0004] Therefore, there is an urgent need for a process that can be easily adjusted to adapt to different sizes of sheet metal and provide an unobstructed, complete processing area for laser cutting. Utility Model Content To address the shortcomings of existing technologies, this utility model provides a positioning fixture for laser cutting of stainless steel thin plates, which has the advantages of convenient adjustment and adaptability to plates of different sizes, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a stainless steel thin plate laser cutting positioning fixture, including a housing, the surface of which is provided with several rod grooves, and telescopic rods are slidably connected to the rod grooves. The interior of the housing is provided with a drive assembly for synchronously driving the several telescopic rods. One end of each telescopic rod is fixedly provided with a support ring, the top end of which is fixedly provided with a suction cup, and the top end of which is fixedly provided with a rubber ring. The bottom end of the housing is fixedly provided with a base, the middle of which is fixedly provided with a hollow air cylinder. The bottom end of the support ring is provided with a flexible hose connected to the hollow air cylinder. The bottom of the base is provided with an air pump for evacuating the hollow air cylinder, and the bottom of the hollow air cylinder is provided with a pressure relief assembly.

[0006] As a preferred embodiment of this utility model, the drive assembly includes a motor, the bottom end of which is fixedly connected to the inner wall of the middle part of the bottom end of the housing, the output shaft of the motor is fixedly connected to a support disk, the top end of the support disk is fixedly connected to a spiral disk by bolts, the spiral disk and the support disk are both coaxial with the output shaft of the motor, the spiral disk is slidably connected to a plurality of sliders, the bottom end of the sliders is provided with a groove corresponding to the spiral disk, and the sliders are fixedly connected to the other end of the telescopic rod by screws.

[0007] As a preferred embodiment of this utility model, the inner wall of the housing is fixedly provided with a support ring, and the surface of the support ring is provided with a plurality of balls that provide support for the spiral disk, and the bottom end of the spiral disk is slidably connected to the balls.

[0008] As a preferred technical solution of this utility model, a cover plate is fixedly installed on the top of the housing by screws, a pad is fixedly provided in the middle of the top of the cover plate, the pad is coaxial with the cover plate, a rubber pad is fixedly provided on the top of the pad, and the rubber pad and the rubber ring are located on the same horizontal plane.

[0009] As a preferred technical solution of this utility model, the pressure relief assembly includes an electric pressure relief valve, a mounting base is fixedly provided on the top of the electric pressure relief valve, a rubber sheet is fixedly provided on the top of the mounting base, the mounting base is fixedly connected to the base by screws, a first conduit is fixedly provided at the air outlet of the electric pressure relief valve, the air outlet of the first conduit is fixedly connected to the bottom of the hollow air cylinder, and a second conduit is fixedly provided at the air inlet of the electric pressure relief valve.

[0010] As a preferred technical solution of this utility model, the air inlet end of the second conduit is fixedly provided with a first connecting ring, and a second connecting ring is fixedly provided on one side of the first connecting ring by bolts. A sealing ring is provided between the second connecting ring and the first connecting ring. A filter cover is fixedly provided on one side of the second connecting ring. An air inlet groove is opened on the surface of the filter cover, and a filter screen is fixedly provided on the surface of the air inlet groove.

[0011] As a preferred technical solution of this utility model, the bottom end of the base is fixedly provided with a base plate, and the surface of the base plate is provided with a plurality of positioning holes for fixing it. The air pump is fixedly connected to the top end of the base plate, and the air inlet end of the air pump is fixedly provided with an air extraction pipe. The air inlet end of the air extraction pipe is fixedly provided with the middle part of the bottom end of the hollow air cylinder.

[0012] As a preferred embodiment of this utility model, the top of the hollow air cylinder is provided with several air holes, one end of the hose is fixedly connected to the air holes, and the other end of the hose is fixedly connected to the bottom end of the support ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This stainless steel sheet laser cutting positioning fixture uses suction cups to support the stainless steel sheet, and rubber rings to protect the sheet, preventing surface scratches and ensuring a good fit. An air pump expels air from the hollow air cylinder and hose, creating a negative pressure environment. The suction cups then adhere to this negative pressure, allowing for rapid positioning of the stainless steel sheet. A drive assembly enables the synchronous extension and retraction of several telescopic rods, and the distance between the suction cups can be adjusted to accommodate sheets of different sizes. This ensures precise synchronous movement of multiple clamping points, preventing deformation due to uneven stress. Operation is simple and convenient.

[0014] 2. This stainless steel sheet laser cutting positioning fixture, through the installation of a flexible hose, ensures the extension and retraction of the telescopic rod without interfering with its movement. After adjustment by the telescopic rod, the suction cup provides an interference-free processing space for the laser cutting head. The pressure relief component can instantly break the vacuum environment, making it easy to remove the sheet from the suction cup, and can also filter dust in the gas to prevent dust from entering. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the internal structure of the housing of this utility model; Figure 4 This is a cross-sectional structural diagram of the shell of this utility model; Figure 5 This is a schematic diagram of the pressure relief assembly of this utility model; Figure 6 This is a schematic diagram of the structure of the filter cover of this utility model.

[0016] In the diagram: 1. Housing; 2. Rod groove; 3. Telescopic rod; 4. Drive assembly; 401. Motor; 402. Support plate; 403. Spiral disc; 404. Slider; 5. Support ring; 6. Ball bearing; 7. Suction cup; 8. Rubber ring; 9. Support ring; 10. Cover plate; 11. Pad; 12. Rubber pad; 13. Base; 14. Hollow air cylinder; 15. Air pump; 16. Pressure relief assembly; 1601. Electric pressure relief valve; 1602. Mounting base; 1603. Rubber sheet; 1604. Conduit 1; 1605. Conduit 2; 1606. Connecting ring 1; 1607. Connecting ring 2; 1608. Sealing ring; 1609. Filter cover; 17. Air hole; 18. Hose. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-6 A stainless steel sheet laser cutting positioning fixture includes a housing 1. The surface of the housing 1 has several rod grooves 2, with telescopic rods 3 slidably connected to the grooves 2. Inside the housing 1 is a drive assembly 4 that synchronously drives the telescopic rods 3. A support ring 9 is fixed to one end of each telescopic rod 3, and a suction cup 7 is fixed to the top of the support ring 9. A rubber ring 8 is fixed to the top of the suction cup 7. A base 13 is fixed to the bottom of the housing 1, and a hollow air cylinder 14 is fixed to the middle of the base 13. A flexible hose 18 connected to the hollow air cylinder 14 is located at the bottom of the support ring 9. An air pump 15 for evacuating the hollow air cylinder 14 is located at the bottom of the base 13, and a pressure relief assembly 16 is located at the bottom of the hollow air cylinder 14. The suction cup 7 allows for the lifting of the stainless steel sheet. The rubber ring 8 provides support and protection for the stainless steel sheet, preventing scratches on the surface and ensuring a good fit between the contact surfaces. The air pump 15 can expel the air from the hollow air cylinder 14 and the hose 18, creating a negative pressure inside. The suction cup 7 can then use this negative pressure to adhere to the stainless steel sheet, allowing for quick positioning. The drive assembly 4 can drive several telescopic rods 3 to extend and retract synchronously, and the distance between the suction cups 7 can be adjusted to accommodate different sizes of plates. This ensures the accuracy of synchronous movement of multiple clamping points, preventing deformation of the plate due to uneven force. The operation is simple and convenient. The hose 18 ensures the extension and retraction of the telescopic rods 3 without interfering with their movement. In this embodiment, preferably, the drive assembly 4 includes a motor 401. The bottom end of the motor 401 is fixedly connected to the inner wall of the middle part of the bottom end of the housing 1. The output shaft of the motor 401 is fixedly connected to a support disk 402. The top end of the support disk 402 is fixedly connected to a spiral disk 403 by bolts. Both the spiral disk 403 and the support disk 402 are coaxial with the output shaft of the motor 401. Several sliders 404 are slidably connected to the spiral disk 403. The bottom end of the slider 404 is provided with a groove corresponding to the spiral disk 403. The slider 404 is fixedly connected to the other end of the telescopic rod 3 by screws. A support ring 5 is fixedly provided on the inner wall of the housing 1. Several lifting points for the spiral disk 403 are rotatably provided on the surface of the support ring 5. The bottom end of the spiral disk 403 is slidably connected to the ball bearing 6 for support. The spiral disk 403 is fixed to the support disk 402 by bolts, which facilitates the installation and removal of the spiral disk 403. The telescopic rod 3 is fixed to the slider 404 by screws, which allows the telescopic rod 3 to be installed and removed. The support disk 402 is driven by the motor 401, which can drive the spiral disk 403 to rotate. The support ring 5 provides stable support for the spiral disk 403 through the ball bearing 6 without interfering with the rotation of the spiral disk 403. The spiral disk 403 can drive several telescopic rods 3 to move synchronously through the slider 404. The telescopic rods 3 can drive the suction cups 7 to move, which can quickly adjust the spacing of the suction cups 7. In this embodiment, preferably, the pressure relief assembly 16 includes an electric pressure relief valve 1601. A mounting base 1602 is fixedly mounted on the top of the electric pressure relief valve 1601. A rubber sheet 1603 is fixedly mounted on the top of the mounting base 1602. The mounting base 1602 is fixedly connected to the base 13 by screws. A first conduit 1604 is fixedly mounted on the outlet end of the electric pressure relief valve 1601. The outlet end of the first conduit 1604 is fixedly connected to the bottom of the hollow air cylinder 14. A second conduit 1605 is fixedly mounted on the inlet end of the electric pressure relief valve 1601. A first connecting ring 1606 is fixedly mounted on the inlet end of the second conduit 1605. A second connecting ring 1607 is fixedly mounted on one side of the first connecting ring 1606 by bolts. A sealing ring 1608 is provided between the second ring 1607 and the first connecting ring 1606. A filter cover 1609 is fixedly provided on one side of the second connecting ring 1607. An air inlet groove is opened on the surface of the filter cover 1609, and a filter screen is fixedly provided on the surface of the air inlet groove. The electric pressure relief valve 1601 can be fixedly installed through the mounting base 1602. The rubber sheet 1603 can ensure the stability of the electric pressure relief valve 1601. By opening the electric pressure relief valve 1601, external air can enter the hollow air cylinder 14, which can instantly break the vacuum environment and make it easy to remove the plate from the suction cup 7. The filter cover 1609 can filter dust in the gas and prevent dust from entering the electric pressure relief valve 1601. In this embodiment, preferably, a cover plate 10 is fixedly installed on the top of the housing 1 by screws, and a pad 11 is fixedly provided in the middle of the top of the cover plate 10. The pad 11 is coaxial with the cover plate 10, and a rubber pad 12 is fixedly provided on the top of the pad 11. The rubber pad 12 and the rubber ring 8 are located on the same horizontal plane. The pad 11 can support the middle of the plate, making the plate less prone to collapse and maintaining the flatness of the plate. The setting of the rubber pad 12 can ensure the fit and friction between the pad 11 and the plate. In this embodiment, preferably, a base plate is fixedly provided at the bottom end of the base 13, and a plurality of positioning holes are provided on the surface of the base plate for fixing it. The air pump 15 is fixedly connected to the top end of the base plate, and an air suction pipe is fixedly provided at the air inlet end of the air pump 15. The air inlet end of the air suction pipe is fixedly provided to the middle of the bottom end of the hollow air cylinder 14. A plurality of air holes 17 are provided at the top of the hollow air cylinder 14. One end of the hose 18 is fixedly connected to the air hole 17, and the other end of the hose 18 is fixedly connected to the bottom end of the support ring 9. The hollow air cylinder 14 and the suction cup 7 can be connected through the hose 18.

[0019] In use, the stainless steel sheet is first placed on the suction cup 7, which provides support for the stainless steel sheet. The rubber ring 8 protects the stainless steel sheet, preventing scratches on its surface and ensuring the fit of the contact surfaces. The pad 11 supports the middle of the sheet, preventing it from collapsing and maintaining its flatness. The rubber pad 12 ensures the fit and friction between the pad 11 and the sheet. Then, the air inside the hollow air cylinder 14 and hose 18 is discharged by the air pump 15, creating a negative pressure inside. The suction cup 7 uses this negative pressure to adsorb the stainless steel sheet, allowing for quick positioning. After positioning, the stainless steel sheet can be laser-cut. After the plate is cut, the electric pressure relief valve 1601 of the pressure relief assembly 16 is opened, and the outside air can enter the hollow air cylinder 14, which can instantly destroy the vacuum environment. The filter cover 1609 can filter the dust in the gas and prevent the dust from entering the electric pressure relief valve 1601, so that the plate can be removed from the suction cup 7. When processing plates of different sizes, the motor 401 of the drive assembly 4 drives the support plate 402, which in turn drives the spiral plate 403 to rotate. The support ring 5 provides stable support for the spiral plate 403 through the ball bearings 6, without interfering with the rotation of the spiral plate 403. The spiral plate 403 drives several telescopic rods 3 to move synchronously through the slider 404. The telescopic rods 3 can drive the suction cups 7 to move, which can quickly adjust the spacing of the suction cups 7. This can be used for cutting plates of different sizes, while avoiding the suction cups 7 being located on the cutting line, and can provide a non-interference processing space for the laser cutting head.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel sheet laser cutting positioning fixture, comprising a housing (1), characterized in that: The surface of the housing (1) is provided with several rod grooves (2), and the rod grooves (2) are slidably connected to telescopic rods (3). The interior of the housing (1) is provided with a drive assembly (4) for synchronously driving several telescopic rods (3). One end of the telescopic rod (3) is fixedly provided with a support ring (9). The top end of the support ring (9) is fixedly provided with a suction cup (7). The top end of the suction cup (7) is fixedly provided with a rubber ring (8). The bottom end of the housing (1) is fixedly provided with a base (13). The middle part of the base (13) is fixedly provided with a hollow air cylinder (14). The bottom end of the support ring (9) is provided with a hose (18) connected to the hollow air cylinder (14). The bottom of the base (13) is provided with a suction pump (15) for evacuating the hollow air cylinder (14). The bottom of the hollow air cylinder (14) is provided with a pressure relief assembly (16).

2. The stainless steel sheet laser cutting positioning fixture according to claim 1, characterized in that: The drive assembly (4) includes a motor (401), the bottom end of which is fixedly connected to the inner wall of the middle part of the bottom end of the housing (1). The output shaft of the motor (401) is fixedly connected to a support disk (402). The top end of the support disk (402) is fixedly connected to a spiral disk (403) by bolts. The spiral disk (403) and the support disk (402) are both coaxial with the output shaft of the motor (401). The spiral disk (403) is slidably connected to several sliders (404). The bottom end of the slider (404) is provided with a groove corresponding to the spiral disk (403). The slider (404) is fixedly connected to the other end of the telescopic rod (3) by screws.

3. The stainless steel sheet laser cutting positioning fixture according to claim 2, characterized in that: The inner wall of the housing (1) is fixedly provided with a support ring (5), and the surface of the support ring (5) is provided with a plurality of balls (6) that provide support for the spiral disk (403). The bottom end of the spiral disk (403) is slidably connected to the balls (6).

4. The stainless steel sheet laser cutting positioning fixture according to claim 1, characterized in that: The top of the housing (1) is fixedly installed with a cover plate (10) by screws. A pad (11) is fixedly provided in the middle of the top of the cover plate (10). The pad (11) is coaxial with the cover plate (10). A rubber pad (12) is fixedly provided at the top of the pad (11). The rubber pad (12) and the rubber ring (8) are located on the same horizontal plane.

5. The stainless steel sheet laser cutting positioning fixture according to claim 1, characterized in that: The pressure relief assembly (16) includes an electric pressure relief valve (1601), a mounting base (1602) is fixedly provided on the top of the electric pressure relief valve (1601), a rubber sheet (1603) is fixedly provided on the top of the mounting base (1602), the mounting base (1602) is fixedly connected to the base (13) by screws, a first conduit (1604) is fixedly provided at the air outlet end of the electric pressure relief valve (1601), the air outlet end of the first conduit (1604) is fixedly connected to the bottom of the hollow air cylinder (14), and a second conduit (1605) is fixedly provided at the air inlet end of the electric pressure relief valve (1601).

6. The stainless steel sheet laser cutting positioning fixture according to claim 5, characterized in that: The air inlet end of the second conduit (1605) is fixedly provided with a first connecting ring (1606). A second connecting ring (1607) is fixedly provided on one side of the first connecting ring (1606) by bolts. A sealing ring (1608) is provided between the second connecting ring (1607) and the first connecting ring (1606). A filter cover (1609) is fixedly provided on one side of the second connecting ring (1607). An air inlet groove is opened on the surface of the filter cover (1609), and a filter screen is fixedly provided on the surface of the air inlet groove.

7. The stainless steel sheet laser cutting positioning fixture according to claim 1, characterized in that: The bottom end of the base (13) is fixedly provided with a base plate, and the surface of the base plate is provided with a number of positioning holes for fixing it. The air pump (15) is fixedly connected to the top end of the base plate. The air pump (15) is fixedly provided with an air suction pipe at the air inlet end. The air inlet end of the air suction pipe is fixedly provided with the middle part of the bottom end of the hollow air cylinder (14).

8. The stainless steel sheet laser cutting positioning fixture according to claim 1, characterized in that: The top of the hollow air cylinder (14) has several air holes (17), one end of the hose (18) is fixedly connected to the air holes (17), and the other end of the hose (18) is fixedly connected to the bottom end of the support ring (9).

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