Straight-buried steam heat-preservation pipe end bevel cutting device with automatic centering and clamping

Abstract

The present application relates to the technical field of laser cutting, in particular to a straight-buried steam heat preservation pipe end bevel cutting equipment with automatic centering and clamping, comprising a frame, the top of the frame is provided with displacement driving assemblies on both sides, the side of the two displacement driving assemblies facing each other is provided with a laser cutting gun, one end of the bearing plate close to the shaft No.1 is provided with a feeding flap, and the two struts away from the mounting frame No.1 of the frame are rotationally connected with a discharging plate through a shaft No.2. The double effort lever structure composed of the shaft No.1 and the bearing plate No.1, the shaft No.2 and the discharging plate is used, the whole process does not need external hoisting mechanism, the differential rotation axis point design of the two plate pieces is used, the end of the bearing plate No.1 and the discharging plate always adhere to the pipe wall and keep the same angle, the high-precision self-adaptive centering is realized, and the eccentricity problem of bevel processing is avoided; meanwhile, the fixed-point disconnection assembly driven by the plug-in plate and the arc spring is used, the parallel operation of cutting and material preparation is realized, the production rhythm is greatly compressed, and the laser cutting effect is improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a beveling cutting device for the end of a direct-buried steam insulation pipe with automatic centering clamp. Background Technology

[0002] In centralized heating projects, prefabricated direct-buried steam insulated pipes are widely used due to their excellent thermal insulation performance and structural strength. These pipes are typically composed of a working steel pipe, an insulation layer, and an outer protective pipe. During the production process, the pipe ends must be beveled.

[0003] During the loading stage, manual assistance is often required to lift the heavy steel pipes onto the rotating rollers using a complex pushing mechanism. After cutting, the clamps must be fully released before unloading. This process arrangement results in a significant amount of waiting time and lacks a pre-loading buffer mechanism, hindering continuous production and severely limiting processing efficiency. Furthermore, the insulated steel pipes are heavy, and conventional tilting or lifting mechanisms typically require high-power motors and high-ratio reducers to overcome the gravitational torque. Therefore, a beveling cutting device for the end of directly buried steam insulated pipes with automatic centering clamping is proposed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing a beveling cutting device for the end of a direct-buried steam insulation pipe with automatic centering clamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A beveling cutting device for the end of a direct-buried steam insulation pipe with automatic centering clamping includes a frame. Displacement drive components are installed on both sides of the top of the frame. A laser cutting gun is installed on one side of the two displacement drive components facing each other. Mounting frame 1 and mounting frame 2 are fixedly connected to both sides of the bottom of the frame. The two mounting frames 1 are rotatably connected to the same shaft 1. A bearing plate 1 is fixedly connected to the outer wall of shaft 1. A feeding baffle is provided at the end of bearing plate 1 near shaft 1. A feeding plate is rotatably connected between two pillars of the frame away from mounting frame 1 through shaft 2. A fixed-point disconnection assembly is provided between the feeding folding plate and the bearing plate 1. Traction cables are fixedly connected to both sides of the bearing plate 1. A fixing rod is sleeved on the outer wall of the traction cable. The fixing rod is fixedly connected to the frame. A winding disc is fixedly connected to the end of the fixing rod. The winding disc is set inside the mounting frame 1 and is rotatably connected to the mounting frame 1 through a short shaft 1. A disc is fixed to the side of the mounting frame near the bearing plate, and a transmission structure is provided on the outer wall of both shaft one and shaft two. On the opposite side of the bearing plate and the feeding plate, there are several evenly distributed rotating rollers 1 and 2. One end of the rotating roller 1 is fixed to a drive shaft. The outer wall of the drive shaft is fitted with the same drive belt. One of the drive shafts is fixed to a gear 3 on its outer wall.

[0006] Preferably, a motor three is fixedly connected to the side of the fixed rod closest to the bearing plate one, and a gear four is fixedly connected to the output shaft of the motor three.

[0007] Preferably, the transmission structure includes a ratchet, a pawl assembly engaged on one side of the ratchet, and the two ratchets are respectively fixed to shaft one and shaft two.

[0008] Preferably, a transmission chain assembly is provided on one side of the ratchet, which includes gear two and gear one, and a chain is sleeved on the outer wall of both gear two and gear one.

[0009] Preferably, the two gears are fixedly connected to the two pawl assemblies respectively, and the two gears are rotatably connected to the ratchet via a set shaft.

[0010] Preferably, one of the gears is fixedly connected to the short shaft via a set shaft, and a motor is provided on one side of each of the two gears. The motors are fixedly connected to the motor and the mounting frame, respectively, and the output shafts of the motors are fixedly connected to the two gears.

[0011] Preferably, on the other side of the gear one near the mounting frame two, a connecting rod one is fixedly connected, and the connecting rod one is fixedly connected to the end of the material feed plate through the connecting rod two.

[0012] Preferably, the fixed-point disconnection assembly includes an insert plate, which is slidably connected to a support plate. Slots are provided on both sides of the insert plate, and insert rods are slidably connected inside the slots. The insert rods are slidably connected to both sides of the support plate, and several springs are fixedly connected between the insert plate and the support plate.

[0013] Preferably, a slide rod is slidably connected to the inner side of the circular groove of the disc, the slide rod is fixedly connected to the feeding folding plate, an arc spring is fixedly connected to the outer wall of the slide rod, a fixing plate is fixedly connected to the end of the arc spring, the fixing plate is fixedly connected to the disc, and an arc inclined block is fixedly connected to the inner circumference of the disc.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention utilizes a double-efficiency lever structure consisting of shaft one and bearing plate one, and shaft two and cutting plate two. No external lifting mechanism is required throughout the process. By employing the differentiated rotation axis design of the two plates, gravity automatically adapts to the pipe tolerances during lifting, ensuring that the ends of bearing plate one and cutting plate one always adhere to the pipe wall and maintain a consistent angle. This achieves high-precision adaptive centering, avoiding the eccentricity risks associated with beveling. The blocking effect created by the pre-reversal of bearing plate one effectively holds the insulated steel pipe in place, forcibly regulating its rolling direction and preventing risks such as reverse pipe movement, beveling collisions, and equipment jamming. Simultaneously, the fixed-point disengagement assembly driven by the insert plate and arc spring enables parallel cutting and material preparation operations, significantly reducing production cycle time and solving the problems of inaccurate centering, high energy consumption, and low efficiency associated with traditional equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an overall side view of the invention; Figure 3 This is a top view of the present invention after removing mounting frame one and mounting frame two; Figure 4 This is a schematic diagram of the structure of the traction cable in this invention; Figure 5 This is the present invention. Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the internal structure of the feeding folding plate of the present invention; Figure 7 This is the present invention. Figure 6 Schematic diagram of the structure at point B; Figure 8 This is the present invention. Figure 6 Schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the working state of the support plate and the feeding plate of the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the working state of the support plate and the feeding plate of the present invention. Figure 2 .

[0016] In the diagram: 1. Frame; 2. Laser cutting gun; 3. Displacement drive assembly; 4. Feeding plate; 5. Bearing plate one; 6. Unloading plate; 7. Motor one; 8. Motor two; 9. Mounting frame one; 10. Fixing rod; 11. Traction cable; 12. Rotating roller one; 13. Rotating roller two; 14. Mounting frame two; 15. Connecting rod one; 16. Arc spring; 17. Fixing plate; 18. Disc; 19. Shaft one; 20. Short shaft one; 21. Winding disc; 22. Shaft two; 23. Chain; 24. Gear one; 25. Connecting rod two; 26. Gear two; 27. Drive belt; 28. Drive shaft; 29. ​​Gear three; 30. Gear four; 31. Motor three; 32. Ratchet; 33. Pawl assembly; 34. Insert rod; 35. Slot; 36. Insert plate; 37. Spring one; 38. Arc inclined block; 39. Slide rod. Detailed Implementation

[0017] 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.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Reference Figures 1-10 A beveling cutting device for direct-buried steam insulation pipes with automatic centering clamping includes a frame 1. Displacement drive components 3 are installed on both sides of the top of the frame 1. A laser cutting gun 2 is installed on one side of each of the two displacement drive components 3 facing each other. Mounting frame 1 (9) and mounting frame 2 (14) are fixedly connected to both sides of the bottom of the frame 1. The two mounting frames 1 (9) are rotatably connected to the same shaft 19. A bearing plate 5 is fixedly connected to the outer wall of the shaft 19. A feeding baffle 4 is provided at the end of the bearing plate 1 (19) near the shaft 19. A feeding plate 6 is rotatably connected between two pillars of the frame 1 away from the mounting frame 1 (9) via shaft 2 (22). Traction cables 11 are fixedly connected to both sides of the bearing plate 1 (15). A fixing rod 10 is sleeved on the outer wall of the traction cable 11. The fixing rod 10 is fixedly connected to the frame 1. A winding disc 21 is fixedly connected to the end of the fixing rod 10. The winding disc 21 is located inside the mounting frame 1 (9) and rotatably connected to the mounting frame 1 (9) via a short shaft 20. A disc 18 is fixed to the side of the mounting frame 9 near the bearing plate 5, and a transmission structure is provided on the outer wall of both shaft 19 and shaft 22.

[0020] In this implementation scheme, the insulated steel pipe is pushed to rotate onto the feeding baffle 4. Then, the motor 7 rotates towards the frame 1, so that the motor 7 drives the winding disc 21 to wind up the traction cable 11 through the gear 24 and the short shaft 20. Through the limiting of the fixed rod 10, the force of the traction cable 11 on the bearing plate 5 is downward. Since the position of the shaft 19 is close to the feeding baffle 4, the action of lifting the insulated steel pipe is a labor-saving structure.

[0021] Among them, a fixed-point disconnection assembly is provided between the feeding baffle plate 4 and the bearing plate 5. The fixed-point disconnection assembly includes an insert plate 36, which is slidably connected to the bearing plate 5. Slots 35 are opened on both sides of the insert plate 36, and insert rods 34 are slidably connected inside the slots 35. The insert rods 34 are slidably connected to both sides of the bearing plate 5. Several springs 37 are fixedly connected between the insert plate 36 and the bearing plate 5.

[0022] A slide rod 39 is slidably connected to the inner side of the circular groove of the disc 18. The slide rod 39 is fixedly connected to the feeding folding plate 4. An arc spring 16 is fixedly connected to the outer wall of the slide rod 39. A fixing plate 17 is fixedly connected to the end of the arc spring 16. The fixing plate 17 is fixedly connected to the disc 18. An arc inclined block 38 is fixedly connected to the inner circumference of the disc 18.

[0023] In this implementation scheme, when the height of the upward lifting of the feeding baffle 4 exceeds that of the shaft 19, the insulated steel pipe has already rolled downward toward the laser cutting gun 2. The insertion rod 34 abuts against the protrusion of the arc-shaped inclined block 38, and the insertion rod 34 is inserted into the slot 35, causing the insertion plate 36 to retract, so that the insertion plate 36 is disengaged from the feeding baffle 4. The feeding baffle 4 is reset by the elastic force of the arc-shaped spring 16, which makes it convenient to place the new insulated steel pipe to be processed on the feeding baffle 4 while waiting for cutting, so as to shorten the production cycle.

[0024] Among them, several evenly distributed rotating rollers 12 and 23 are rotatably connected inside the opposite side of the bearing plate 15 and the feeding plate 6. One end of the rotating roller 12 is fixedly connected to a drive shaft 28. The outer wall of the drive shaft 28 is fitted with the same drive belt 27. One of the drive shafts 28 is fixedly connected to a gear 3 29 on its outer wall.

[0025] A motor 31 is fixedly connected to the side of the fixed rod 10 near the bearing plate 5, and a gear 4 30 is fixedly connected to the output shaft of the motor 31.

[0026] The transmission structure includes a ratchet 32, a pawl assembly 33 engaging on one side of the ratchet 32, and the two ratchet 32 ​​are respectively fixed to shaft 19 and shaft 22.

[0027] A transmission chain assembly is provided on one side of the ratchet 32, which includes gear 26 and gear 24. The outer walls of gear 26 and gear 24 are fitted with chains 23.

[0028] Two gears 26 are fixedly connected to two pawl assemblies 33 respectively, and the two gears 26 are rotatably connected to the ratchet 32 ​​through a set shaft.

[0029] One of the gears 24 is fixedly connected to the short shaft 20 via a shaft. Motor 7 and motor 8 are respectively provided on one side of the two gears 24. Motor 7 and motor 8 are fixedly connected to motor 7 and mounting frame 14 respectively. The output shafts of motor 7 and motor 8 are fixedly connected to the two gears 24 respectively.

[0030] In this implementation scheme, when motor 7 starts, motor 8 also starts and rotates towards the laser cutting gun 2. Through gear 24, chain 23, and gear 26, shaft 22 rotates, causing the blanking plate 6 to tilt in an unloaded state. The blanking plate 6 and shaft 22 form a second force-saving lever structure. Since the rotation axis points of the bearing plate 5 and the blanking plate 6 are not the same, the height of shaft 22 is reduced, so that the angles of the bearing plate 5 and the blanking plate 6 when bearing the insulation steel pipe are consistent, ensuring the accuracy of the center. At this time, gear 329 on the side wall of bearing plate 5 has meshed with gear 430. Motor 331 drives gear 329 to rotate through gear 430. Gear 329 drives the rotating roller 12 to rotate through transmission belt 27 and transmission shaft 28. Relying on the friction generated by the self-weight of the insulation steel pipe pressing the rotating roller 12 and rotating roller 23, the workpiece can rotate smoothly. The system controls the displacement drive component 3 to feed the laser cutting gun 2 according to the preset program, which can efficiently complete the beveling of the pipe end.

[0031] On the other side, gear 124 is close to the mounting frame 214 and is fixedly connected to connecting rod 15. Connecting rod 15 is fixedly connected to the end of the feed plate 6 through connecting rod 25.

[0032] In this implementation scheme, after processing is completed, motor 7 first reverses, followed by motor 8 rotating, so that... Figure 10 As shown, the end of the bearing plate 5 can block the insulated steel pipe. In the subsequent feeding process, when the feeding plate 6 is flipped and tilted, the shoulder can effectively hold the steel pipe, forcibly restrict its rotation direction, prevent the steel pipe from unnecessary reverse rolling with the movement of the feeding plate 6, and ensure that the finished steel pipe slides out strictly along the predetermined trajectory. Then, the connecting rod 25 and connecting rod 15 at the end of the feeding plate 6 smoothly guide the cut finished steel pipe out as the motor 8 rotates.

[0033] Working principle: Push the insulated steel pipe to rotate it onto the feeding baffle 4. Then, the motor 7 rotates towards the frame 1, so that the motor 7 drives the winding disc 21 to wind the traction cable 11 through the gear 24 and the short shaft 20. Through the limiting of the fixed rod 10, the force of the traction cable 11 on the bearing plate 5 is downward. Since the position of the shaft 19 is close to the feeding baffle 4, the action of lifting the insulated steel pipe is a labor-saving structure.

[0034] At the same time, when the height of the upward lifting of the feeding baffle 4 exceeds that of the shaft 19, the insulated steel pipe has already rolled downward toward the laser cutting gun 2. The insertion rod 34 abuts against the protrusion of the arc-shaped inclined block 38, and the insertion rod 34 is inserted into the slot 35, which drives the insertion plate 36 to retract, so that the insertion plate 36 is separated from the feeding baffle 4. The feeding baffle 4 is reset by the elastic force of the arc-shaped spring 16, which makes it easy to place the new insulated steel pipe to be processed on the feeding baffle 4 while waiting for cutting, so as to shorten the production cycle.

[0035] Simultaneously with the start of motor 7, motor 8 also starts rotating towards the laser cutting gun 2. Through gear 24, chain 23, and gear 26, it drives shaft 22 to rotate, causing the blanking plate 6 to tilt in an unloaded state. The blanking plate 6 and shaft 22 form a second force-saving lever structure. Because the rotation axes of the bearing plate 5 and blanking plate 6 are not aligned, the height of shaft 22 is reduced, ensuring that the ends of the bearing plate 5 and blanking plate 6 bear the insulation steel pipe at the same angle, guaranteeing the accuracy of the center. At this time, gear 329 on the side wall of bearing plate 5 is engaged with gear 430. Motor 31 drives gear 329 to rotate through gear 430. Gear 329, through transmission belt 27 and transmission shaft 28, drives rotating roller 12 to rotate. Relying on the friction generated by the weight of the insulation steel pipe pressing against rotating roller 12 and rotating roller 23, the workpiece rotates smoothly. According to the preset program, the system controls the displacement drive component 3 to feed the laser cutting gun 2, thus efficiently completing the pipe end beveling process.

[0036] After processing, motor 7 first reverses, then motor 8 rotates, causing... Figure 10 As shown, the end of the bearing plate 5 can block the insulated steel pipe. In the subsequent feeding process, when the feeding plate 6 is flipped and tilted, the shoulder can effectively hold the steel pipe, forcibly restrict its rotation direction, prevent the steel pipe from unnecessary reverse rolling with the movement of the feeding plate 6, and ensure that the finished steel pipe slides out strictly along the predetermined trajectory. Then, the connecting rod 25 and connecting rod 15 at the end of the feeding plate 6 smoothly guide the cut finished steel pipe out as the motor 8 rotates.

[0037] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0038] 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 beveling device for direct-buried steam insulation pipes with automatic centering clamping, comprising a frame (1), characterized in that, Displacement drive components (3) are installed on both sides of the top of the frame (1). A laser cutting gun (2) is installed on one side of the two displacement drive components (3) facing each other. Mounting frame one (9) and mounting frame two (14) are fixedly connected to both sides of the bottom of the frame (1). The two mounting frames one (9) are rotatably connected to the same shaft one (19). The outer wall of shaft one (19) is fixedly connected to a bearing plate one (5). A feeding baffle (4) is provided at the end of the bearing plate one (5) near shaft one (19). A feeding plate (6) is rotatably connected between the two pillars of the frame (1) away from mounting frame one (9) through shaft two (22). A fixed-point disconnection assembly is provided between the feeding folding plate (4) and the bearing plate (5). Traction cables (11) are fixedly connected to both sides of the bearing plate (5). A fixing rod (10) is sleeved on the outer wall of the traction cable (11). The fixing rod (10) is fixedly connected to the frame (1). A winding disc (21) is fixedly connected to the end of the fixing rod (10). The winding disc (21) is set inside the mounting frame (9) and is rotatably connected to the mounting frame (9) through a short shaft (20). A disc (18) is fixed to the side of the mounting frame (9) near the bearing plate (5), and a transmission structure is provided on the outer wall of the shaft (19) and the shaft (22). On the opposite side of the bearing plate (5) and the feeding plate (6), there are several evenly distributed rotating rollers (12) and rotating rollers (13). One end of the rotating roller (12) is fixedly connected to a drive shaft (28). The outer wall of the drive shaft (28) is fitted with the same drive belt (27). One of the drive shafts (28) is fixedly connected to a gear (29).

2. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 1, characterized in that: A motor three (31) is fixedly connected to the side of the fixed rod (10) near the bearing plate one (5), and a gear four (30) is fixedly connected to the output shaft of the motor three (31).

3. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 1, characterized in that: The transmission structure includes a ratchet (32), a pawl assembly (33) meshing on one side of the ratchet (32), and the two ratchets (32) are fixedly connected to shaft one (19) and shaft two (22) respectively.

4. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 3, characterized in that: A transmission chain assembly is provided on one side of the ratchet (32), which includes gear two (26) and gear one (24). The outer walls of gear two (26) and gear one (24) are fitted with chains (23).

5. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 4, characterized in that: Two gears (26) are fixedly connected to two pawl assemblies (33) respectively, and the two gears (26) are rotatably connected to the ratchet (32) through the set shaft.

6. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 5, characterized in that: One of the gears (24) is fixedly connected to the short shaft (20) via a shaft. One motor (7) and another motor (8) are respectively provided on one side of the two gears (24). The first motor (7) and the second motor (8) are fixedly connected to the first motor (7) and the second mounting frame (14) respectively. The output shafts of the first motor (7) and the second motor (8) are fixedly connected to the two gears (24) respectively.

7. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 6, characterized in that: On the other side, gear one (24) is close to the side of mounting frame two (14) and is fixedly connected to connecting rod one (15). Connecting rod one (15) is fixedly connected to the end of the feed plate (6) through connecting rod two (25).

8. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 1, characterized in that: The fixed-point disconnection assembly includes a plug plate (36), which is slidably connected to the support plate (5). Slots (35) are provided on both sides of the plug plate (36), and plug rods (34) are slidably connected inside the slots (35). The plug rods (34) are slidably connected to both sides of the support plate (5). Several springs (37) are fixed between the plug plate (36) and the support plate (5).

9. The device for beveling the end of a direct-buried steam insulation pipe with automatic centering clamp as described in claim 1, characterized in that: A sliding rod (39) is slidably connected to the inner side of the circular groove of the disc (18). The sliding rod (39) is fixedly connected to the feeding folding plate (4). An arc spring (16) is fixedly connected to the outer wall of the sliding rod (39). A fixing plate (17) is fixedly connected to the end of the arc spring (16). The fixing plate (17) is fixedly connected to the disc (18). An arc inclined block (38) is fixedly connected to the inner circumference of the disc (18).

Images