A clamping and fixing device for laser cutting numerical control machine tool

Abstract

The application relates to the technical field of numerical control machine tools, in particular to a clamping and fixing device for a laser cutting numerical control machine tool, which comprises a main body, a laser cutting head for machining a steel piece is arranged on the main body, a connecting frame is fixedly installed on the main body, a hydraulic cylinder is fixedly installed on the connecting frame, and a sealing cover is fixedly connected to the output end of the hydraulic cylinder. The specification of the clamping plate is selected, the U-shaped clamping plate can clamp the steel piece with a plate-shaped or a mouth-shaped structure, and the arc-shaped clamping plate can clamp the steel piece with a cylindrical structure; the output end of the telescopic rod is driven to extend and retract, the sealing cover is driven to move downwards, the sealing cover is moved to the moving plate to seal the steel piece during machining, the cleanliness inside the main body is guaranteed; the positioning block can clamp the displacement rod from the two sides, the clamping plate is convenient to install, the screw rod one and the screw rod two are driven to rotate by the motor one, and the steel frame is convenient to load and unload.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and in particular to a clamping and fixing device for a laser cutting CNC machine tool. Background Technology

[0002] Laser cutting machine tools are automated machine tools equipped with a program control system. They can operate according to a pre-programmed program to process parts and can be used for drilling, cutting and other processes on both metals and non-metals.

[0003] According to CN221695672U, a CNC laser cutting machine with rapid workpiece positioning is disclosed, including a vertical plate, a control panel, a base box, and a machine body. The machine body uses a push plate to press down on the metal workpiece to be processed, and then transports the processed workpiece via a conveyor belt. The push plate in the document is a plate-shaped structure, fixedly mounted on a push rod. This means the push plate can only clamp plate-shaped workpieces. However, the application range of the workpieces is wide, resulting in various specifications, which means the push plate cannot clamp all different workpieces, thus increasing operating costs. Furthermore, the machine body generates dust and fumes during processing, and the machine body does not intercept these dust and fumes, leaving the surrounding environment unprotected and the safety of the operator next to the machine unprotected. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the machine tool body cannot limit the movement of metal parts of different specifications in the prior art, and to propose a clamping and fixing device for laser cutting CNC machine tools.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A clamping and fixing device for a laser cutting CNC machine tool includes a main body, on which a laser cutting head for processing steel parts is provided. A connecting frame is fixedly installed on the main body, and a hydraulic cylinder is fixedly installed on the connecting frame. A sealing cover is fixedly connected to the output end of the hydraulic cylinder, and the laser cutting head is disposed on the sealing cover. The main body is equipped with two movable plates for loading and unloading steel parts via movable components. A support column is fixedly installed on the movable plate, and a movable rod is slidably sleeved on the support column. A traction structure for pulling the movable rod is provided on the movable plate. A sleeve is fixedly installed on the movable rod, and an installation rod is slidably sleeved inside the sleeve. A clamping plate for clamping the steel parts is fixedly installed on the installation rod, and a clamping structure for clamping the installation rod is installed on the sleeve.

[0006] Preferably, the sealing cover is a U-shaped structure with an open bottom, and the sealing cover is provided with a collection tube for winding up the flue gas. The main body is slidably fitted with symmetrically arranged sliders, and a traction plate is integrally connected between the two sliders. The traction plate is provided with a brush and a nozzle for cleaning dust.

[0007] Preferably, a telescopic rod connected to the slider is fixedly installed on the main body, a discharge port is opened on the main body, and the traction plate is horizontally arranged below the moving plate.

[0008] Preferably, the moving component includes a motor fixedly mounted on the main body, and a lead screw is fixedly connected to the output end of the motor. A lead screw is rotatably mounted on the main body and is connected to the lead screw. Matching nuts are slidably sleeved on the lead screw and the lead screw. The moving plate is disposed on the nut.

[0009] Preferably, lead screw one and lead screw two are horizontally arranged correspondingly, and lead screw one and lead screw two are connected by a transmission belt through a coupling. The moving plate is horizontally arranged below the sealing cover. A connecting rod is connected between the two nuts one. A guide rod that cooperates with the connecting rod is fixedly installed on the main body.

[0010] Preferably, the traction structure includes a second motor fixedly mounted on a movable plate, and a bidirectional lead screw is fixedly connected to the output end of the second motor. Two matching nuts are slidably sleeved on the bidirectional lead screw, and a connecting rod connects the movable rod to the two nuts.

[0011] Preferably, the bidirectional lead screw is horizontally positioned on one side of the moving rod, and both ends of the connecting rod are connected to the second nut and the pin of the moving rod, respectively.

[0012] Preferably, the clamping plate and the mounting rod extend to one side outside the sleeve, and the clamping plate is horizontally positioned on both sides of the steel part. The clamping plate has a U-shaped or arc-shaped structure that matches the steel part, and the inner wall of the clamping plate is provided with a soft pad that moves against the steel part.

[0013] Preferably, the clamp structure includes a mounting plate fixedly installed on the mounting rod, and a locking bolt connected to the sleeve is threaded on the mounting plate. A symmetrically arranged positioning cylinder is fixedly installed on the sleeve, and a displacement rod is slidably sleeved on the positioning cylinder. A positioning block extending into the mounting rod is fixedly installed on the displacement rod. A spring is welded between the positioning cylinder and the displacement rod. A sliding rod connected to the displacement rod is slidably sleeved inside the positioning cylinder, and a connecting plate is fixedly installed on the sliding rod.

[0014] Preferably, the positioning cylinder is horizontally positioned on both sides of the sleeve, the mounting rod has a positioning groove that cooperates with the positioning block, the spring is sleeved on the sliding rod, the connecting plate and the sliding rod extend to one side outside the positioning cylinder, and the connecting plate is threaded with a fixing bolt that connects to the positioning cylinder.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By selecting the specifications of the clamping plates, the present invention allows the U-shaped clamping plates to clamp plate-shaped and orifice-shaped steel parts, and the arc-shaped clamping plates to clamp cylindrical steel parts, so that the main body can clamp steel parts of different specifications, thereby improving the overall adaptability of the main body.

[0016] 2. This invention uses the extension and retraction of the output end of the telescopic rod to move the sealing cover downwards, so that the sealing cover moves to the moving plate to seal the steel parts during processing. This allows the steel frame to intercept debris during processing, and the interaction between the brush and the nozzle can collect the debris inside the main body, thus ensuring the cleanliness of the main body.

[0017] 3. The present invention can clamp the displacement rod from both sides through the positioning block and limit the installation rod through the sleeve, making the clamp plate easier to install. The motor drives the lead screw one and lead screw two to rotate, so that the two moving plates drive the steel frame to move when they move. The moving plates drive the steel frame to load and unload materials when they move, making the loading and unloading of the steel frame easier. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention; Figure 2 This is a cross-sectional view of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention; Figure 3 This is a top view of the main body of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention; Figure 4 This is a top sectional view of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention; Figure 5 This is a cross-sectional view of the main body of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention; Figure 6 This is an enlarged schematic diagram of structure A of a clamping and fixing device for a laser cutting CNC machine tool proposed in this invention.

[0019] In the diagram: 1. Main body; 2. Connecting frame; 3. Hydraulic cylinder; 4. Laser cutting head; 5. Sealing cover; 6. Collection pipe; 7. Motor 1; 8. Lead screw 1; 9. Lead screw 2; 10. Transmission belt; 11. Nut 1; 12. Moving plate; 13. Motor 2; 14. Support column; 15. Double-acting lead screw; 16. Nut 2; 17. Connecting rod; 18. Moving rod; 19. Sleeve; 20. Mounting rod; 21. Clamping plate; 22. Mounting plate; 23. Positioning cylinder; 24. Displacement rod; 25. Positioning block; 26. Spring; 27. Sliding rod; 28. Connecting plate; 29. ​​Slider; 30. Telescopic rod; 31. Traction plate; 32. Brush; 33. Nozzle; 34. Discharge port. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figures 1-6 A clamping and fixing device for a laser cutting CNC machine tool includes a main body 1, and a laser cutting head 4 for processing steel parts is provided on the main body 1. The laser cutting head 4 can process the steel parts to be processed after being powered on. This technical solution is the prior art and will not be described in detail here.

[0022] A connecting frame 2 is fixedly installed on the main body 1, and a hydraulic cylinder 3 is fixedly installed on the connecting frame 2. A sealing cover 5 is fixedly connected to the output end of the hydraulic cylinder 3. The laser cutting head 4 is located on the sealing cover 5. The sealing cover 5 is a U-shaped structure with an open bottom. A collection pipe 6 for winding up the fumes is provided on the sealing cover 5. The extension and retraction of the output end of the hydraulic cylinder 3 drives the sealing cover 5 to move down. When the sealing cover 5 moves, it extends to the moving plate 12, so as to intercept the dust generated during the processing of the steel workpiece and protect the surrounding environment. One end of the collection pipe 6 is connected to the suction fan. The collection pipe 6 can collect the fumes generated during processing in a concentrated manner, thereby protecting the operator next to the main body 1.

[0023] The main body 1 is slidably fitted with symmetrically arranged sliders 29, and a traction plate 31 is integrally connected between the two sliders 29. The traction plate 31 is equipped with a brush 32 and a nozzle 33 for cleaning dust. A telescopic rod 30 connected to the sliders 29 is fixedly installed on the main body 1. The main body 1 has a discharge port 34. The traction plate 31 is horizontally positioned below the moving plate 12. The sliders 29 drive the traction plate 31, brush 32, and nozzle 33 to move. The brush 32 can clean the dust inside the main body 1, and the nozzle 33 can clean the dust on the main body 1 again, so that the dust can be discharged from the main body 1 through the discharge port 34.

[0024] The main body 1 is equipped with two moving plates 12 for loading and unloading steel parts via a moving component. The moving component includes a motor 7 fixedly installed on the main body 1, and a lead screw 8 is fixedly connected to the output end of the motor 7. When the motor 7 is energized, it drives the lead screw 8 to rotate on the main body 1. This technical solution is existing technology and will not be elaborated on here. A lead screw 9 is rotatably installed on the main body 1 and is connected to the lead screw 8. Matching nuts 11 are slidably sleeved on the lead screw 8 and the lead screw 9. The moving plate 12 is located on the nut 11.

[0025] Lead screw 8 and lead screw 9 are horizontally arranged correspondingly, and a transmission belt 10 is connected between lead screw 8 and lead screw 9 through a coupling. The moving plate 12 is horizontally arranged below the sealing cover 5. A connecting rod is connected between the two nuts 11. A guide rod that cooperates with the connecting rod is fixedly installed on the main body 1. Through the cooperation between the guide rod and the connecting rod, the movement direction of the nuts 11 can be limited. The moving plate 12 drives the steel parts to be processed to move, so that the moving plate 12 can load and unload the steel parts to be processed when it moves, which makes it more convenient for the operator to load and unload the processed steel parts.

[0026] A support column 14 is fixedly installed on the movable plate 12, and a movable rod 18 is slidably sleeved on the support column 14. The support column 14 guides the movable rod 18, so that the movable rod 18 can smoothly pull the sleeve 19 when it moves, and also limits the movement direction of the connecting rod 17 and the nut 16. The movable plate 12 is provided with a traction structure for pulling the movable rod 18.

[0027] The traction structure includes a second motor 13 fixedly mounted on the movable plate 12, and a bidirectional lead screw 15 fixedly connected to the output end of the second motor 13. After the second motor 13 is powered on, it drives the bidirectional lead screw 15 to rotate. This technical solution is existing technology and will not be elaborated on here. Two matching nuts 16 are slidably sleeved on the bidirectional lead screw 15. A connecting rod 17 is connected between the movable rod 18 and the two nuts 16. The bidirectional lead screw 15 is horizontally set on one side of the movable rod 18. The two ends of the connecting rod 17 are respectively connected to the nuts 16 and the pins of the movable rod 18.

[0028] A sleeve 19 is fixedly installed on the movable rod 18, and an installation rod 20 is slidably fitted inside the sleeve 19. A clamping plate 21 for clamping the steel part is fixedly installed on the installation rod 20. The clamping plate 21 and the installation rod 20 extend to one side outside the sleeve 19, and the clamping plate 21 is horizontally set on both sides of the steel part. The clamping plate 21 has a U-shaped or arc-shaped structure that matches the steel part, and a soft pad is provided on the inner wall of the clamping plate 21 to move against the steel part. By setting the clamping plate 21 to a U-shaped or arc-shaped structure that matches the steel part, the contact area between the clamping plate 21 and the steel part to be processed can be increased. This not only allows the clamping plate 21 to limit the steel parts to be processed of different specifications, but also ensures the stability of the steel parts to be processed after processing. Furthermore, by providing a soft pad inside the clamping plate 21, the soft pad can protect the steel parts to be processed after being limited.

[0029] A clamping structure for clamping the mounting rod 20 is installed on the sleeve 19.

[0030] The clamp structure includes a mounting plate 22 fixedly installed on the mounting rod 20, and a locking bolt connected to the sleeve 19 is threaded onto the mounting plate 22. A symmetrically arranged positioning cylinder 23 is fixedly installed on the sleeve 19, and a displacement rod 24 is slidably sleeved on the positioning cylinder 23. A positioning block 25 extending into the mounting rod 20 is fixedly installed on the displacement rod 24. A spring 26 is welded between the positioning cylinder 23 and the displacement rod 24. A sliding rod 27 connected to the displacement rod 24 is slidably sleeved inside the positioning cylinder 23, and a connecting plate 28 is fixedly installed on the sliding rod 27. The positioning cylinder 23 guides the displacement rod 24, so that the displacement rod 24 can drive the positioning block 25 and the sliding rod 27 to move smoothly when it moves. The spring 26 resets the displacement rod 24. When the positioning block 25 is unloaded, the spring 26 can drive the sliding rod 27 and the displacement rod 24 back to their initial positions.

[0031] The positioning cylinder 23 is horizontally positioned on both sides of the sleeve 19. The mounting rod 20 has a positioning groove that cooperates with the positioning block 25. The spring 26 is sleeved on the sliding rod 27. The connecting plate 28 and the sliding rod 27 extend to one side outside the positioning cylinder 23. The connecting plate 28 is threaded with a fixing bolt that connects to the positioning cylinder 23. When the clamping plate 21 needs to be installed, the movement of the displacement rod 24 drives the positioning block 25 to extend into the mounting rod 20, thereby initially connecting the sleeve 19 and the mounting rod 20. The locking bolt connects the mounting plate 22 and the sleeve 19, thereby quickly limiting the clamping plate 21 so that the clamping plate 21 can clamp steel parts of different specifications.

[0032] The functional principle of this invention can be explained through the following operational methods: When the steel component is plate-shaped or U-shaped, a U-shaped clamping plate 21 is selected; When the steel component is a cylindrical structure, an arc-shaped clamping plate 21 is selected. Press the mounting rod 20 with clamp 21. When the mounting rod 20 extends into the sleeve 19, it will move against the positioning block 25. The spring 26 is stressed, causing the displacement rod 24 to drive the positioning block 25 to extend into the positioning groove. Use the fixing bolt to connect the connecting plate 28 and the positioning cylinder 23, and use the locking bolt to connect the mounting plate 22 and the sleeve 19. The steel parts are placed on two movable plates 12. The output end of motor 13 drives the bidirectional lead screw 15 to rotate. When the bidirectional lead screw 15 rotates, it drives the two nuts 16 to move in opposite directions. When the two nuts 16 move toward each other, the traction link 17 deflects. The position difference generated by the deflection of the link 17 applies pressure to the moving rod 18, causing the moving rod 18 to slide on the support column 14 and drive the clamping plate 21 to move, so that the two clamping plates 21 clamp the steel parts from both sides. After the steel part is limited, the output end of motor 7 drives lead screw 8 to rotate. When lead screw 8 rotates, it drives lead screw 9 to rotate through transmission belt 10. When lead screw 8 and lead screw 9 rotate, they drive nut 11 to move horizontally, so that nut 11 drives moving plate 12 to a position below laser cutting head 4. The hydraulic cylinder 3 extends and retracts, causing the sealing cover 5 to move downwards, so that the sealing cover 5 extends to the position above the moving plate 12. After the laser cutting head 4 is powered on, it processes the steel part. The collection pipe 6 collects the waste smoke generated during processing. When the steel part is processed, the sealing cover 5 moves upwards to the initial position. Under the drive of the motor 7, the moving plate 12 and the steel part are moved to one side of the main body 1, and the processed steel part is removed. The telescopic rod 30 extends and retracts, causing the slider 29 to rotate on the main body 1. The slider 29 drives the traction plate 31 to slide. When the traction plate 31 moves, the brush 32 scrapes the debris accumulated in the main body 1, and the nozzle 33 blows the debris up, causing the debris to be discharged through the discharge port 34.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A clamping and fixing device for a laser cutting CNC machine tool, comprising a main body (1), wherein the main body (1) is provided with a laser cutting head (4) for processing steel parts, characterized in that, A connecting frame (2) is fixedly installed on the main body (1), and a hydraulic cylinder (3) is fixedly installed on the connecting frame (2). A sealing cover (5) is fixedly connected to the output end of the hydraulic cylinder (3), and the laser cutting head (4) is located on the sealing cover (5). The main body (1) is provided with two movable plates (12) for loading and unloading steel parts via movable parts. A support column (14) is fixedly installed on the movable plate (12), and a movable rod (18) is slidably sleeved on the support column (14). A traction structure for pulling the movable rod (18) is provided on the movable plate (12). A sleeve (19) is fixedly installed on the movable rod (18), and an installation rod (20) is slidably sleeved inside the sleeve (19). A clamping plate (21) for clamping the steel parts is fixedly installed on the installation rod (20), and a clamping structure for clamping the installation rod (20) is installed on the sleeve (19).

2. The clamping and fixing device for a laser cutting CNC machine tool according to claim 1, characterized in that, The sealing cover (5) is a U-shaped structure with an open bottom. The sealing cover (5) is provided with a collection tube (6) for winding up the flue gas. The main body (1) is slidably fitted with symmetrically arranged sliders (29), and a traction plate (31) is integrally connected between the two sliders (29). The traction plate (31) is provided with a brush (32) and a nozzle (33) for cleaning dust.

3. The clamping and fixing device for a laser cutting CNC machine tool according to claim 2, characterized in that, The main body (1) is fixedly installed with a telescopic rod (30) connected to the slider (29), and the main body (1) is provided with a discharge port (34). The traction plate (31) is horizontally positioned below the moving plate (12).

4. The clamping and fixing device for a laser cutting CNC machine tool according to claim 1, characterized in that, The moving part includes a motor (7) fixedly installed on the main body (1), and a lead screw (8) is fixedly connected to the output end of the motor (7). A lead screw (9) is rotatably installed on the main body (1) and is connected to the lead screw (8) in a transmission. A matching nut (11) is slidably sleeved on the lead screw (8) and the lead screw (9). The moving plate (12) is located on the nut (11).

5. A clamping and fixing device for a laser cutting CNC machine tool according to claim 4, characterized in that, The lead screw 1 (8) and lead screw 2 (9) are horizontally arranged correspondingly, and a transmission belt (10) is connected between lead screw 1 (8) and lead screw 2 (9) through a coupling. The moving plate (12) is horizontally arranged below the sealing cover (5). A connecting rod is connected between the two nuts 1 (11). A guide rod that cooperates with the connecting rod is fixedly installed on the main body (1).

6. The clamping and fixing device for a laser cutting CNC machine tool according to claim 1, characterized in that, The traction structure includes a second motor (13) fixedly installed on a movable plate (12), and a bidirectional lead screw (15) is fixedly connected to the output end of the second motor (13). Two matching nuts (16) are slidably sleeved on the bidirectional lead screw (15), and a connecting rod (17) is connected between the movable rod (18) and the two nuts (16).

7. A clamping and fixing device for a laser cutting CNC machine tool according to claim 6, characterized in that, The bidirectional lead screw (15) is horizontally positioned on one side of the moving rod (18), and the two ends of the connecting rod (17) are respectively connected to the nut (16) and the pin of the moving rod (18).

8. The clamping and fixing device for a laser cutting CNC machine tool according to claim 1, characterized in that, The clamp (21) and the mounting rod (20) extend to one side outside the sleeve (19), and the clamp (21) is horizontally set on both sides of the steel part. The clamp (21) is a C-shaped or arc-shaped structure that cooperates with the steel part, and the inner wall of the clamp (21) is provided with a soft pad that moves against the steel part.

9. A clamping and fixing device for a laser cutting CNC machine tool according to claim 1, characterized in that, The clamp structure includes a mounting plate (22) fixedly installed on the mounting rod (20), and a locking bolt connected to the sleeve (19) is threaded on the mounting plate (22). A symmetrically arranged positioning cylinder (23) is fixedly installed on the sleeve (19), and a displacement rod (24) is slidably sleeved on the positioning cylinder (23). A positioning block (25) extending into the mounting rod (20) is fixedly installed on the displacement rod (24). A spring (26) is welded between the positioning cylinder (23) and the displacement rod (24). A sliding rod (27) connected to the displacement rod (24) is slidably sleeved inside the positioning cylinder (23), and a connecting plate (28) is fixedly installed on the sliding rod (27).

10. A clamping and fixing device for a laser cutting CNC machine tool according to claim 9, characterized in that, The positioning cylinder (23) is horizontally positioned on both sides of the sleeve (19). The mounting rod (20) has a positioning groove that cooperates with the positioning block (25). The spring (26) is sleeved on the sliding rod (27). The connecting plate (28) and the sliding rod (27) extend to one side outside the positioning cylinder (23). The connecting plate (28) is threaded with a fixing bolt that connects to the positioning cylinder (23).

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