Flat suction jig of laser cutting machine

Abstract

The utility model discloses a flat suction jig of a laser cutting machine, which relates to the technical field of laser cutting and comprises a jig base, a negative pressure box is fixedly arranged at the top of the jig base, an adsorption plate is fixedly arranged at the top of the negative pressure box, and a plurality of adsorption holes are uniformly formed in the top of the adsorption plate. According to the utility model, when a control knob is rotated, a plurality of sealing plates are driven to move up and down in sequence through a horizontal screw rod, a horizontal moving block, a horizontal guide rail, a horizontal guide block, a moving rack, a connecting gear, a vertical stud, a lifting screw cylinder and a vertical guide rod, so that a plurality of adsorption holes in an adsorption plate can be sealed or opened in sequence; therefore, the purpose that the effective adsorption area of the adsorption plate can be adjusted is achieved, the flat suction jig can be matched with workpieces of different sizes for adsorption and fixation, the application range of the flat suction jig is effectively widened, and the flat suction jig is easy to operate, convenient to use and good in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a leveling fixture for a laser cutting machine. Background Art

[0002] A suction leveling jig is a device used to keep the workpiece flat during the laser cutting process. It creates negative pressure under the workpiece, sucking and flattening the workpiece, thereby ensuring that the workpiece remains flat during laser cutting and improving cutting quality.

[0003] The patent with publication number CN220462646U in the prior art discloses a suction leveling jig for a laser cutting machine. By setting a nozzle, a sealing block, a water pipe and a water connecting pipe, a certain amount of clean water is evenly sprayed on the lower surface of the material in advance during the process of adsorption and fixation of the material. The clean water can well seal the gap between the material and the mounting plate during the adsorption of the material by the adsorption holes, thereby improving the stability of the adsorption of the suction leveling jig, preventing slippage during material cutting, and improving the cutting quality of the laser cutting machine. However, during use, when the workpiece to be fixed is small, it is easy for the workpiece to fail to cover all the adsorption holes, which will make it difficult for the workpiece to be stably adsorbed and fixed on the jig. The scope of application is small and the practicality needs to be improved. Therefore, in order to solve the above problems, the utility model proposes a suction leveling jig for a laser cutting machine. Utility Model Content

[0004] The purpose of the present utility model is to provide a suction leveling fixture for a laser cutting machine to solve the problem raised in the above background technology that when the workpiece to be fixed is small and cannot cover all the suction holes, it will cause the workpiece to be difficult to be stably adsorbed and fixed on the fixture, and the scope of application is small.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a suction leveling jig for a laser cutting machine, comprising a jig base, a negative pressure box fixedly provided on the top of the jig base, an adsorption plate fixedly provided on the top of the negative pressure box, a plurality of adsorption holes evenly provided on the top of the adsorption plate, a plurality of vertical studs evenly rotatably installed on the bottom inner wall of the negative pressure box, a plurality of lifting screw barrels are threadedly sleeved on the vertical studs, a sealing plate adapted to the adsorption holes is fixedly installed on the top of the plurality of lifting screw barrels, a vertical guide unit is installed on the sealing plates, a connecting gear is fixedly sleeved on the vertical studs, a moving rack adapted to the connecting gear is provided in the negative pressure box, a control component for controlling the horizontal movement of the moving rack is installed on the negative pressure box, and an anti-rotation unit is installed on the vertical studs.

[0006] Preferably, the control component includes a horizontal screw rod rotatably mounted on the inner wall of the side of the negative pressure box, a horizontal moving block is threadedly sleeved on the horizontal screw rod, the movable rack is fixedly mounted on the side of the horizontal moving block, a horizontal guide rail is fixedly mounted on the bottom inner wall of the negative pressure box, a horizontal guide block is slidably mounted in the horizontal guide rail, the horizontal guide block is fixedly mounted on the bottom of the horizontal moving block, and one end of the horizontal screw rod extends to the outside of the negative pressure box and is fixedly mounted with a control knob.

[0007] Preferably, a fixing block is fixedly installed on the side of the negative pressure box, a latch slide hole is provided on the top of the fixing block, a locking latch is slidably installed in the latch slide hole, and a plurality of locking holes are evenly provided on the circumferential side of the control knob, and the bottom end of the locking pin extends into one of the locking holes.

[0008] Preferably, the anti-rotation unit includes a mounting block fixedly mounted on the inner wall of the bottom of the negative pressure box, a hexagonal sliding hole being opened on the side of the mounting block, a hexagonal sliding rod being slidably mounted in the hexagonal sliding hole, a friction block being fixedly mounted on one end of the hexagonal sliding rod and fitting with the vertical stud, and an elastic extrusion element being mounted on the hexagonal sliding rod.

[0009] Preferably, the elastic extrusion element includes a protrusion fixedly sleeved on the hexagonal slide rod, the protrusion is located between the mounting block and the friction block, and the sides of the protrusion and the mounting block close to each other are jointly fixedly mounted with an extrusion spring.

[0010] Preferably, the vertical guide unit includes two vertical guide rods fixedly mounted on the bottom of the adsorption plate, and the sealing plate is slidably sleeved on the two vertical guide rods.

[0011] Preferably, a rubber pad is fixed on the top of each of the plurality of sealing plates.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. The utility model has a reasonable structure. When the control knob is turned, the horizontal screw rod and the horizontal shift block will drive the movable rack to move horizontally. The horizontal movement of the movable rack will drive multiple vertical studs to rotate in sequence through the connecting gear. The multiple vertical studs will rotate in sequence and drive multiple sealing plates to move up and down in sequence through the lifting screw barrel, so that the multiple adsorption holes on the adsorption plate can be sealed or opened in sequence, thereby achieving the purpose of adjusting the effective adsorption area of ​​the adsorption plate, so that the suction leveling jig can be adapted to adsorb and fix workpieces of different sizes, effectively improving the applicability of the suction leveling jig, and the operation is simple, easy to use, and practical.

[0014] 2. In the present invention, the mounting block, hexagonal slide bar, friction block and extrusion spring are arranged in coordination. Under the elastic force of the extrusion spring, the friction block is squeezed and pushed to always be close to the vertical stud, thereby effectively increasing the rotational friction of the vertical stud, preventing the vertical stud from rotating during use and causing the sealing plate to automatically rise and fall. The utility model is stable and reliable during use.

[0015] 3. In the present invention, when the locking pin is moved up and down to move out of or into the locking hole, the control knob can be unlocked or locked so that it cannot be rotated. This can effectively reduce the possibility of changes in the effective adsorption area of ​​the adsorption plate due to accidental touching of the control knob during use, and provides good stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a leveling fixture for a laser cutting machine according to the present invention;

[0018] Figure 2 This is a partial cross-sectional structural diagram of a leveling fixture for a laser cutting machine according to the present invention;

[0019] Figure 3 It is a partially enlarged three-dimensional structural diagram of the connection between the vertical stud, the sealing plate and the horizontal screw rod in the present invention;

[0020] Figure 4 This is a partially enlarged three-dimensional structural diagram of the connection between the control knob and the locking pin in the present invention.

[0021] In the figure: 1. Fixture base; 2. Negative pressure box; 3. Adsorption plate; 4. Vertical stud; 5. Lifting screw; 6. Sealing plate; 7. Connecting gear; 8. Moving rack; 9. Horizontal lead screw; 10. Horizontal shift block; 11. Control knob; 12. Horizontal guide rail; 13. Vertical guide rod; 14. Mounting block; 15. Hexagonal slide bar; 16. Friction block; 17. Extrusion spring; 18. Fixing block; 19. Locking pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Reference Figure 1-Figure 4 The shown laser cutting machine suction leveling jig includes a jig base 1, a negative pressure box 2 is fixedly provided on the top of the jig base 1, an adsorption plate 3 is fixedly provided on the top of the negative pressure box 2, and a plurality of adsorption holes are evenly opened on the top of the adsorption plate 3, and a plurality of vertical studs 4 are evenly rotatably installed on the bottom inner wall of the negative pressure box 2, and a lifting screw barrel 5 is threadedly sleeved on the plurality of vertical studs 4, and a sealing plate 6 adapted to the adsorption hole is fixedly installed on the top of the plurality of lifting screw barrels 5, and a rubber pad is fixed on the top of the plurality of sealing plates 6, and a connecting gear 7 is fixedly sleeved on the plurality of vertical studs 4, and a moving rack 8 adapted to the connecting gear 7 is provided in the negative pressure box 2, and a control component for controlling the horizontal movement of the moving rack 8 is installed on the negative pressure box 2, and an anti-rotation unit is installed on the plurality of vertical studs 4, and a vertical guide unit is installed on the plurality of sealing plates 6. The vertical guide unit includes two vertical guide rods 13 fixedly installed on the bottom of the adsorption plate 3, and the sealing plate 6 is slidably sleeved on the two vertical guide rods 13.

[0024] By means of the above structure and the setting of the control component, the movable rack 8 can be controlled to move horizontally. The horizontal movement of the movable rack 8 will drive the multiple connecting gears 7 to rotate in sequence, and then drive the multiple vertical studs 4 to rotate together in sequence. At this time, with the cooperation of the vertical guide rod 13, the multiple vertical studs 4 rotate in sequence, which will drive the multiple sealing plates 6 to move up and down in sequence through the lifting screw barrel 5, and then the multiple adsorption holes on the adsorption plate 3 can be sealed or opened in sequence, thereby achieving the purpose of adjusting the effective adsorption area of ​​the adsorption plate 3, so that the leveling jig can be adapted to adsorb and fix workpieces of different sizes, effectively improving the scope of application of the leveling jig, and it is simple to operate, easy to use and practical.

[0025] like Figure 2 and Figure 3As shown, the control assembly includes a horizontal screw rod 9 rotatably mounted on the inner wall of the side of the negative pressure box 2, a horizontal moving block 10 is threadedly sleeved on the horizontal screw rod 9, a movable rack 8 is fixedly mounted on the side of the horizontal moving block 10, a horizontal guide rail 12 is fixedly mounted on the bottom inner wall of the negative pressure box 2, a horizontal guide block is slidably mounted in the horizontal guide rail 12, and the horizontal guide block is fixedly mounted on the bottom of the horizontal moving block 10, and one end of the horizontal screw rod 9 extends to the outside of the negative pressure box 2 and is fixedly mounted with a control knob 11. The advantage of this arrangement is that when the control knob 11 is rotated, the horizontal screw rod 9 will be driven to rotate. At this time, with the cooperation of the horizontal guide rail 12 and the horizontal guide block, the rotation of the horizontal screw rod 9 will drive the horizontal moving block 10 to move horizontally, and then drive the movable rack 8 to move horizontally together, playing a control role.

[0026] like Figure 4 As shown, a fixing block 18 is fixedly installed on the side of the negative pressure box 2, and a latch slide hole is provided on the top of the fixing block 18. A locking latch 19 is slidably installed in the latch slide hole. A plurality of locking holes are evenly provided on the circumferential side of the control knob 11, and the bottom end of the locking latch 19 extends into one of the locking holes. The advantage of this arrangement is that when the locking latch 19 is pulled upward to move out of the locking hole, the control knob 11 can be unlocked. At this time, the control knob 11 can be rotated to perform adjustment operations. When the locking latch 19 is moved downward to insert into the locking hole, the control knob 11 can be locked and cannot be rotated. Therefore, during use, the occurrence of changes in the effective adsorption area of ​​the adsorption plate 3 due to accidental touching of the control knob 11 can be effectively reduced, and the stability during use is good.

[0027] like Figure 3 As shown, the anti-rotation unit includes a mounting block 14 fixedly mounted on the bottom inner wall of the negative pressure box 2. A hexagonal sliding hole is formed on the side of the mounting block 14, and a hexagonal sliding rod 15 is slidably mounted in the hexagonal sliding hole. A friction block 16 is fixedly mounted on one end of the hexagonal sliding rod 15, which is in contact with the vertical stud 4. A protruding piece is fixedly sleeved on the hexagonal sliding rod 15, and the protruding piece is located between the mounting block 14 and the friction block 16. A compression spring 17 is fixedly mounted on the sides of the protruding piece and the mounting block 14 where they are close to each other. The advantage of this arrangement is that the elastic force of the compression spring 17 squeezes and pushes the protruding piece and drives the friction block 16 to always be in close contact with the vertical stud 4 through the hexagonal sliding rod 15, thereby effectively increasing the rotational friction of the vertical stud 4, preventing the vertical stud 4 from rotating during use and causing the sealing plate 6 to automatically rise and fall, and providing stable and reliable use.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A suction leveling jig for a laser cutting machine, comprising a jig base (1), a negative pressure box (2) fixedly provided on the top of the jig base (1), an adsorption plate (3) fixedly provided on the top of the negative pressure box (2), a plurality of adsorption holes evenly provided on the top of the adsorption plate (3), and characterized in that: A plurality of vertical studs (4) are evenly rotated and installed on the inner wall of the bottom of the negative pressure box (2), and a lifting screw barrel (5) is threadedly sleeved on the plurality of vertical studs (4). A sealing plate (6) adapted to the adsorption hole is fixedly installed on the top of the plurality of lifting screw barrels (5), and a vertical guide unit is installed on the plurality of sealing plates (6). A connecting gear (7) is fixedly sleeved on the plurality of vertical studs (4). A moving rack (8) adapted to the connecting gear (7) is provided in the negative pressure box (2), and a control component for controlling the horizontal movement of the moving rack (8) is installed on the negative pressure box (2). An anti-rotation unit is installed on the plurality of vertical studs (4).

2. The leveling fixture for a laser cutting machine according to claim 1, characterized in that: The control assembly includes a horizontal screw rod (9) rotatably mounted on the inner wall of the side of the negative pressure box (2), a horizontal moving block (10) is threadedly sleeved on the horizontal screw rod (9), the movable rack (8) is fixedly mounted on the side of the horizontal moving block (10), a horizontal guide rail (12) is fixedly mounted on the bottom inner wall of the negative pressure box (2), a horizontal guide block is slidably mounted in the horizontal guide rail (12), and the horizontal guide block is fixedly mounted on the bottom of the horizontal moving block (10), one end of the horizontal screw rod (9) extends to the outside of the negative pressure box (2) and is fixedly mounted with a control knob (11).

3. The leveling fixture for a laser cutting machine according to claim 2, characterized in that: A fixing block (18) is fixedly installed on the side of the negative pressure box (2), a latch slide hole is provided on the top of the fixing block (18), a locking latch (19) is slidably installed in the latch slide hole, and a plurality of locking sockets are evenly provided on the circumferential side of the control knob (11), and the bottom end of the locking latch (19) extends into one of the locking sockets.

4. The leveling fixture for a laser cutting machine according to claim 1, characterized in that: The anti-rotation unit comprises a mounting block (14) fixedly mounted on the inner wall of the bottom of the negative pressure box (2); a hexagonal sliding hole is provided on the side of the mounting block (14); a hexagonal sliding rod (15) is slidably mounted in the hexagonal sliding hole; a friction block (16) that fits the vertical stud (4) is fixedly mounted on one end of the hexagonal sliding rod (15); and an elastic extrusion element is mounted on the hexagonal sliding rod (15).

5. The leveling fixture for a laser cutting machine according to claim 4, characterized in that: The elastic extrusion element comprises a convex piece fixedly sleeved on the hexagonal slide rod (15), the convex piece is located between the mounting block (14) and the friction block (16), and an extrusion spring (17) is fixedly mounted on the sides of the convex piece and the mounting block (14) close to each other.

6. The leveling fixture for a laser cutting machine according to claim 1, characterized in that: The vertical guide unit comprises two vertical guide rods (13) fixedly mounted on the bottom of the adsorption plate (3), and the sealing plate (6) is slidably sleeved on the two vertical guide rods (13).

7. The leveling fixture for a laser cutting machine according to claim 1, characterized in that: The tops of the plurality of sealing plates (6) are all fixed with rubber pads.

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