Laser cutting machine clamp with anti-scratching mechanism

Abstract

The invention provides a laser cutting machine clamp with an anti-scratching mechanism, and relates to the technical field of laser cutting machining. The laser cutting machine clamp with the anti-scratching mechanism comprises a shell, a cleaning assembly, an electric guide rail, a guide groove and a rack are arranged in the shell, the cleaning assembly comprises a connecting frame, a mounting frame, rolling wheels, a straight gear, a chain wheel, a transmission chain, a mounting column, an inclined scraping plate and a collecting box, and the connecting frame is driven to move through the electric guide rail, so that the mounting frame is driven to move; meanwhile, a roller rolls in a guide groove, so that a mounting frame moves upwards relative to a connecting frame, a straight gear is meshed with a rack, and a mounting column starts to rotate after transmission of a chain wheel and a transmission chain, so that metal slag on the fence plate is scraped by an inclined scraper on the peripheral side surface of the mounting column; and meanwhile, the rotating inclined scraping plate can effectively push the scraped metal slag, so that the metal slag falls into the collecting box, the efficient cleaning of the metal slag on the fence plate is realized, and the surface quality of a processed product is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting processing, in particular to a laser cutting machine fixture with an anti-scratch mechanism. Background Art

[0002] Laser cutting is a processing method that uses a high-energy-density laser beam as a heat source to cut materials. In laser cutting, the laser cutting machine fixture plays a vital role. It can stably fix the workpiece on the workbench to ensure cutting accuracy. When cutting precision parts such as metal casings or circuit boards of electronic equipment, these parts have extremely high requirements on surface quality and cannot have scratches. The fixture with an anti-scratch mechanism can, on the one hand, ensure that the parts are firmly fixed during the cutting process, and on the other hand, protect the surface of the parts from damage, thereby ensuring the appearance and performance of the product.

[0003] During the process of laser cutting of metal plates, part of the molten metal will be separated from the cutting area under the blowing force of auxiliary gases (such as oxygen, nitrogen, etc.). However, this part of the molten metal will splash onto the support fence under the metal plate, where it will cool and solidify, and then adhere to the fence. Since the surface of these solidified metal slags is rough, it is very easy to scratch the surface of the metal plate, which has an adverse effect on the processing quality of the product. As far as the prior art is concerned, manual cleaning is usually adopted. However, this cleaning method has many disadvantages, and its cleaning efficiency is very slow, which will cause the laser cutting machine to be in a shutdown state for a long time and unable to work normally. In addition, if the cleaning frequency is fixed, it will be difficult to clean the metal chips attached to the support fence in time, which will affect the smooth progress of the entire processing process and the stability of product quality.

[0004] For this reason, we have developed a new laser cutting machine fixture with an anti-scratch mechanism. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a laser cutting machine clamp with an anti-scratch mechanism, which solves the problems in the prior art of low efficiency of manual cleaning of support fences, resulting in the laser cutting machine being shut down for a long time and unable to work normally, and the problem of product quality being affected by untimely cleaning.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A laser cutting machine fixture with an anti-scratch mechanism, comprising a housing, a clamping assembly fixedly installed in the housing, the clamping assembly comprising two beams fixedly installed in the housing, and a plurality of fence plates fixedly installed in a linear array between the two beams;

[0009] A cleaning assembly is fixedly installed in the shell below the clamping assembly, and the cleaning assembly includes a mounting frame, a plurality of mounting columns are rotatably mounted in a linear array on the top of the mounting frame, a plurality of inclined scrapers are fixedly installed in a circular array on the circumferential side of the mounting columns, and the inclined scrapers on the circumferential side of two adjacent mounting columns are inclined in opposite directions, and a collection box is fixedly embedded on the top of the mounting frame.

[0010] Preferably, the cleaning assembly also includes an electric guide rail fixedly installed on two opposite inner sides of the shell, a connecting frame is fixedly installed between the two electric guide rails, and two symmetrical connecting columns are fixedly connected to the outer bottom of the installation frame, and both of the connecting columns are slidably matched with the connecting frame.

[0011] Preferably, the installation frame is fixedly connected to connecting rods on both outer sides, one end of the connecting rod is rotatably engaged with a roller, and the shell is fixedly installed with guide grooves on both inner sides above the electric guide rails, and the guide grooves are slidably engaged with the rollers.

[0012] Preferably, the top of the installation frame is rotatably matched with a plurality of sprockets, the installation column is fixedly connected to the sprockets, and a transmission chain is commonly sleeved on the peripheral side surfaces of the plurality of sprockets.

[0013] Preferably, one end of the two sprockets is fixedly connected with a spur gear, and two opposite inner side surfaces of the shell are fixedly installed with racks, and the racks are meshed with the spur gears.

[0014] Preferably, a screw is rotatably engaged in the cross beam, and a first external thread and a second external thread are respectively provided on the peripheral side surface of the screw, and the spiral directions of the first external thread and the second external thread are opposite.

[0015] Preferably, a slide groove is provided on the outer top of the cross beam, and two symmetrical connecting plates are threadedly connected to the peripheral side of the screw rod, and the connecting plates are slidably matched with the slide groove.

[0016] Preferably, one side of the connecting plate is fixedly connected to a side plate, one side of the side plate is penetrated by a trapezoidal slot, a trapezoidal plate is slidably fitted in the trapezoidal slot, a clamping plate is fixedly connected between the two trapezoidal plates, a buffer plate is fixedly installed on one side of the clamping plate, and a spring is fixedly connected between the clamping plate and the connecting plate.

[0017] Preferably, one end of the screw is fixedly connected to a first bevel gear, the peripheral side of the first bevel gear is rotatably matched with a second bevel gear, one end of the second bevel gear is fixedly connected to a rotating shaft, a dual-axis motor is fixedly connected between the two rotating shafts, and the dual-axis motor is fixedly connected to the housing.

[0018] (III) Beneficial effects

[0019] The present invention provides a laser cutting machine fixture with an anti-scratch mechanism, which has the following beneficial effects:

[0020] 1. The laser cutting machine clamp with an anti-scratch mechanism has a polyurethane buffer plate on the clamping surface of the clamping plate to prevent the clamping plate from directly clamping both sides of the metal plate, which plays a certain buffering role. At the same time, it also increases friction and improves clamping stability. In addition, a spring is provided between the clamping plate and the connecting plate to prevent the metal plate from being deformed due to excessive clamping force of the clamping plate on the metal plate.

[0021] 2. The laser cutting machine fixture with an anti-scratch mechanism is designed with a cleaning component so that the electric guide rail drives the connecting frame to move, thereby driving the installation frame to move, and at the same time the roller rolls in the guide groove, so that the installation frame moves up relative to the connecting frame, and the spur gear engages with the rack. After being transmitted by the sprocket and the transmission chain, the installation column starts to rotate, and the directions of adjacent installation columns are opposite, so that the inclined scrapers on the sides of the installation columns are used to scrape off the metal slag attached to the fence plate. At the same time, the inclined scrapers on the sides of the two adjacent installation columns are inclined in opposite directions, so that the scraped metal slag is pushed by the inclined scraper and falls smoothly into the collection box along the inclined direction of the inclined scraper. Through such a series of coordinated movement processes, efficient cleaning of the metal slag on the fence plate is achieved, and the scratching of the metal plate surface by the metal slag is effectively avoided, ensuring the surface quality of the product during the laser cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 A top view of the present invention;

[0024] Figure 3 is a cut-away side view of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the cleaning component;

[0026] Figure 5 It is a schematic diagram of the structure of the sprocket chain and the mounting column;

[0027] Figure 6 is a schematic diagram of the structure of the clamping assembly;

[0028] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0029] Figure 8 Schematic diagram of the screw structure.

[0030] Among them, 1. shell; 2. clamping assembly; 3. crossbeam; 4. fence plate; 5. cleaning assembly; 6. installation frame; 7. installation column; 8. inclined scraper; 9. collection box; 10. electric guide rail; 11. connecting frame; 12. connecting column; 13. connecting rod; 14. roller; 15. guide groove; 16. sprocket; 17. transmission chain; 18. spur gear; 19. rack; 20. screw; 21. first external thread; 22. second external thread; 23. slide groove; 24. connecting plate; 25. side plate; 26. trapezoidal slot; 27. trapezoidal plate; 28. clamping plate; 29. ​​spring; 30. first bevel gear; 31. second bevel gear; 32. rotating shaft; 33. dual-axis motor; 34. buffer plate. DETAILED DESCRIPTION

[0031] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] Examples, such as Figure 1 - Figure 8 As shown, an embodiment of the present invention provides a laser cutting machine fixture with an anti-scratch mechanism, including a shell 1, a clamping assembly 2 is fixedly installed in the shell 1, and a cleaning assembly 5 is fixedly installed below the clamping assembly 2 in the shell 1.

[0033] Specifically, the clamping assembly 2 includes two cross beams 3 fixedly installed in the housing 1, and a plurality of fence plates 4 are fixedly installed in a linear array between the two cross beams 3, and the fence plates 4 provide support for the bottom of the metal plate.

[0034] A screw rod 20 is rotatably engaged inside the cross beam 3, and a first external thread 21 and a second external thread 22 are respectively provided on the side surfaces of the screw rod 20. The spiral directions of the first external thread 21 and the second external thread 22 are opposite. A slide groove 23 is provided on the top of the cross beam 3, and the slide groove 23 provides guidance and constraint for the movement of subsequent components. Two symmetrical connecting plates 24 are threadedly connected on the side surfaces of the screw rod 20. The first external thread 21 and the second external thread 22 are respectively matched with the threaded holes on the two connecting plates 24. The connecting plates 24 are slidably engaged with the slide groove 23. The two connecting plates 24 can be driven to slide in the slide groove 23 by rotating the screw rod 20, so that the two connecting plates 24 move away from or close to each other, thereby adjusting the spacing between the two connecting plates 24.

[0035] One side of the connecting plate 24 is fixedly connected to a side plate 25, and one side of the side plate 25 is penetrated by a trapezoidal slot 26, in which a trapezoidal plate 27 is slidably fitted, a clamping plate 28 is fixedly connected between the two trapezoidal plates 27, and a buffer plate 34 is fixedly installed on one side of the clamping plate 28. The buffer plate 34 can be made of polyurethane material. In actual working process, when the clamping plate 28 clamps the metal plate, the buffer plate 34 effectively buffers the clamping force applied by the clamping plate 28 to the metal plate by virtue of its own elastic characteristics, so as to avoid damage to the metal plate due to excessive clamping force, and ensure the integrity of the metal plate during the clamping process. At the same time, the surface of the polyurethane material has a certain roughness, which is a feature The properties enable the buffer plate 34 to increase the friction between the two when in contact with the metal plate, thereby significantly improving the stability of clamping and effectively preventing the metal plate from shifting or shaking during the laser cutting process. A spring 29 is fixedly connected between the clamping plate 28 and the connecting plate 24. When the connecting plate 24 slides in the slide groove 23 at the top of the outer beam 3 and approaches each other, the two clamping plates 28 gradually approach the metal plate. As the clamping action proceeds, when the two buffer plates 34 are in close contact with both sides of the metal plate and begin to apply clamping force, if the two clamping plates 28 move excessively, the spring 29 will be compressed, thereby preventing the clamping plates 28 from excessively squeezing both sides of the metal plate, causing the metal plate to bend and deform.

[0036] A first bevel gear 30 is fixedly connected to one end of the screw 20, and a second bevel gear 31 is rotatably matched with the lateral surface of the first bevel gear 30. A rotating shaft 32 is fixedly connected to one end of the second bevel gear 31, and a dual-axis motor 33 is fixedly connected between the two rotating shafts 32. The dual-axis motor 33 is fixedly connected to the housing 1. By starting the dual-axis motor 33, the two rotating shafts 32 are driven to rotate, and the two rotating shafts 32 drive the second bevel gear 31 to rotate, and the second bevel gear 31 drives the first bevel gear 30 to rotate, thereby controlling the rotation of the two screws 20.

[0037] Specifically, the cleaning assembly 5 includes a mounting frame 6, a plurality of mounting columns 7 are rotatably mounted in a linear array on the top of the mounting frame 6, a plurality of inclined scrapers 8 are fixedly mounted in a circular array on the sides of the mounting columns 7, the inclined scrapers 8 on the sides of two adjacent mounting columns 7 are inclined in opposite directions, and a collecting box 9 is fixedly embedded in the top of the mounting frame 6. By controlling the two mounting columns 7 to rotate on both sides of the fence plate 4, the metal slag attached to the fence plate 4 can be scraped off by the inclined scrapers 8 on the sides of the mounting columns 7. At the same time, the inclined scrapers 8 can make the scraped metal slag fall smoothly into the collecting box 9 along the inclined direction of the inclined scraper 8 under the push of the inclined scraper 8.

[0038] The cleaning assembly 5 also includes an electric guide rail 10 fixedly installed on two opposite inner sides of the shell 1, a connecting frame 11 is fixedly installed between the two electric guide rails 10, and two symmetrical connecting columns 12 are fixedly connected to the outer bottom of the installation frame 6. The two connecting columns 12 are slidably matched with the connecting frame 11. The connecting frame 11 is driven to move to one side by the electric guide rail 10, and the connecting frame 11 drives the installation frame 6 to move to one side through the two connecting columns 12, so that each fence plate 4 is distributed with installation columns 7 on both sides. In this way, when the installation columns 7 rotate, the inclined scrapers 8 on the sides of the installation columns 7 can scrape off the metal chips attached to both sides of the fence plate 4.

[0039] The mounting frame 6 is fixedly connected with connecting rods 13 on both sides relative to the outer side, and one end of the connecting rod 13 is rotatably matched with a roller 14. The housing 1 is fixedly installed with guide grooves 15 on both sides relative to the inner side located above the electric guide rail 10. The guide grooves 15 are slidably matched with the rollers 14. When the mounting frame 6 moves to one side, the rollers 14 on both sides of the mounting frame 6 will roll in the guide grooves 15 at the same time. When the rollers 14 roll from the horizontal grooves in the guide grooves 15 to the inclined grooves, the rollers 14 will start to roll obliquely upward. At the same time, the rollers 14 drive the mounting frame 6 to move obliquely upward through the connecting rods 13, and the two connecting columns 12 below the mounting frame 6 will slide in the connecting frame 11, so that the mounting column 7 can avoid the crossbeam 3 to prevent the crossbeam 3 from interfering with the cleaning action.

[0040] The top of the mounting frame 6 rotates with a plurality of sprockets 16, the mounting column 7 is fixedly connected to the sprockets 16, and the sides of the plurality of sprockets 16 are sleeved with a transmission chain 17 to Figure 5 As shown, when the entire sprocket chain system starts to move, for the linearly arranged sprocket set, the rotation directions of the two adjacent sprockets 16 are opposite, and one end of the two sprockets 16 is fixedly connected to a spur gear 18, and the spur gear 18 is used as an active member to drive the sprocket chain system to move. The housing 1 of the spur gear 18 is fixedly installed with a rack 19 on the two inner sides relative to each other, and the rack 19 is meshed with the spur gear 18. When the roller 14 rolls from the inclined groove in the guide groove 15 to another horizontal groove, the installation frame 6 starts to continue to move to one side, and at the same time, the two sides of each fence plate 4 are distributed with installation columns 7, and the installation frame 6 continues to move. When moving to one side, the spur gear 18 will begin to mesh with the rack 19. Since the rack 19 is fixed, the spur gear 18 will begin to rotate, and the spur gear 18 will drive the sprocket 16 fixedly connected to it to rotate. The sprocket 16 will drive the transmission chain 17 to start moving, thereby driving the remaining sprockets 16 to rotate, and causing the mounting column 7 fixedly connected to the sprocket 16 to start rotating. Since the rotation directions of the two adjacent mounting columns 7 are opposite, the inclined scrapers 8 on the sides of the two adjacent mounting columns 7 can more effectively scrape off the metal chips attached to the fence plate 4 and guide these metal chips to fall into the collection box 9.

[0041] Working principle: when the metal plate to be processed needs to be fixed, the metal plate is first placed on the fence plate 4, and then the double-axis motor 33 is started, so that the two rotating shafts 32 start to rotate, and the two rotating shafts 32 drive the second bevel gear 31 to rotate, and the second bevel gear 31 drives the first bevel gear 30 to rotate, and the first bevel gear 30 drives the screw 20 to rotate, and the screw 20 drives the two connecting plates 24 to slide in the slide groove 23, so that the two connecting plates 24 are close to each other, so that the clamping plate 28 is close to both sides of the metal plate, and the two sides of the metal plate are clamped and fixed;

[0042] When it is necessary to clean the metal chips attached to the fence plate 4, start the dual-axis motor 33 and reverse it, so that the two clamping plates 28 move away from each other until they return to the initial position, and the connecting frame 11 is driven to move to one side by the electric guide rail 10, and the connecting frame 11 drives the installation frame 6 to move to one side through the two connecting columns 12, and at the same time, the rollers 14 on both sides of the installation frame 6 begin to roll in the guide groove 15, and when the rollers 14 roll from the horizontal groove in the guide groove 15 to the inclined groove, the rollers 14 begin to roll obliquely upward, and at the same time, the rollers 14 drive the installation frame 6 to move obliquely upward through the connecting rod 13, and at the same time, the two connecting columns 12 below the installation frame 6 will slide in the connecting frame 11, and when the rollers 14 roll from the inclined groove in the guide groove 15 to another horizontal groove, the installation frame 6 starts to continue to move to one side. At this time, mounting posts 7 are distributed on both sides of the fence plate 4, and the spur gear 18 starts to mesh with the rack 19, and the spur gear 18 starts to rotate. The spur gear 18 will drive the sprocket 16 fixed to it to rotate, and the sprocket 16 drives the transmission chain 17 to start moving, thereby driving the remaining sprockets 16 to rotate, and the mounting post 7 starts to rotate. Since the rotation directions of the two adjacent mounting posts 7 are opposite, and the inclined scrapers 8 on the sides of the two adjacent mounting posts 7 are inclined in opposite directions, the inclined scrapers 8 on the sides of the mounting posts 7 can more effectively scrape off the metal slag attached to the fence plate 4, and the scraped metal slag is pushed by the inclined scraper 8 and falls smoothly into the collection box 9 along the inclined direction of the inclined scraper 8.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting machine fixture with an anti-scratch mechanism, comprising a housing (1), characterized in that: A clamping assembly (2) is fixedly installed in the shell (1), and the clamping assembly (2) comprises two cross beams (3) fixedly installed in the shell (1), and a plurality of fence plates (4) are fixedly installed in a linear array between the two cross beams (3); A cleaning assembly (5) is fixedly installed in the shell (1) below the clamping assembly (2), and the cleaning assembly (5) comprises a mounting frame (6). A plurality of mounting posts (7) are rotatably mounted in a linear array on the top of the mounting frame (6), and a plurality of inclined scrapers (8) are fixedly installed in a circular array on the circumferential side of the mounting posts (7). The inclined scrapers (8) on the circumferential side of two adjacent mounting posts (7) are inclined in opposite directions. A collecting box (9) is fixedly embedded in the top of the mounting frame (6).

2. A laser cutting machine fixture with an anti-scratch mechanism according to claim 1, characterized in that: The cleaning assembly (5) further comprises electric guide rails (10) fixedly mounted on two opposite inner side surfaces of the housing (1), a connecting frame (11) fixedly mounted between the two electric guide rails (10), and two symmetrical connecting columns (12) fixedly connected to the outer bottom of the mounting frame (6), the two connecting columns (12) both slidably fitting with the connecting frame (11).

3. The laser cutting machine fixture with an anti-scratch mechanism according to claim 2, characterized in that: The mounting frame (6) is fixedly connected to connecting rods (13) on both outer side surfaces, one end of the connecting rod (13) is rotatably matched with a roller (14), and the housing (1) is fixedly installed with guide grooves (15) above the electric guide rails (10) on both inner side surfaces, and the guide grooves (15) are slidably matched with the rollers (14).

4. The laser cutting machine fixture with an anti-scratch mechanism according to claim 3, characterized in that: The top of the installation frame (6) is rotatably matched with a plurality of sprocket wheels (16), the installation column (7) is fixedly connected to the sprocket wheels (16), and a transmission chain (17) is sleeved on the peripheral side surfaces of the plurality of sprocket wheels (16).

5. The laser cutting machine fixture with an anti-scratch mechanism according to claim 4, characterized in that: One end of the two sprocket wheels (16) is fixedly connected to a spur gear (18), and two opposite inner side surfaces of the housing (1) are fixedly mounted with racks (19), and the racks (19) are meshed with the spur gears (18).

6. The laser cutting machine fixture with an anti-scratch mechanism according to claim 5, characterized in that: A screw rod (20) is rotatably engaged in the cross beam (3), and a first external thread (21) and a second external thread (22) are respectively provided on the peripheral side surface of the screw rod (20), and the spiral directions of the first external thread (21) and the second external thread (22) are opposite.

7. The laser cutting machine fixture with an anti-scratch mechanism according to claim 6, characterized in that: The top of the cross beam (3) is provided with a slide groove (23), and the side surface of the screw rod (20) is threadedly connected with two symmetrical connecting plates (24), and the connecting plates (24) are slidably matched with the slide groove (23).

8. The laser cutting machine fixture with an anti-scratch mechanism according to claim 7, characterized in that: One side of the connecting plate (24) is fixedly connected to a side plate (25), one side of the side plate (25) is penetrated by a trapezoidal slot (26), a trapezoidal plate (27) is slidably fitted in the trapezoidal slot (26), a clamping plate (28) is fixedly connected between the two trapezoidal plates (27), a buffer plate (34) is fixedly installed on one side of the clamping plate (28), and a spring (29) is fixedly connected between the clamping plate (28) and the connecting plate (24).

9. The laser cutting machine fixture with an anti-scratch mechanism according to claim 8, characterized in that: One end of the screw rod (20) is fixedly connected to a first bevel gear (30), a circumferential side surface of the first bevel gear (30) is rotatably matched with a second bevel gear (31), one end of the second bevel gear (31) is fixedly connected to a rotating shaft (32), a dual-axis motor (33) is fixedly connected between the two rotating shafts (32), and the dual-axis motor (33) is fixedly connected to the housing (1).

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