Servo feed cutting device

Abstract

The utility model discloses a servo feed cutting device which comprises a cutting machine frame assembly and a cutting shell, a revolution speed reducer is installed on the top of the cutting shell, the output end of the revolution speed reducer is fixedly connected with a rotating shaft through a coupler, the rotating shaft is coaxially arranged, a V-shaped belt wheel is fixedly arranged on the peripheral face of the rotating shaft in a sleeved mode, and a cavity is formed in the cutting shell. A feed wheel is rotationally mounted in the cavity, and the V belt wheel and the feed wheel are jointly sleeved with a V belt body; one side of the feed wheel is fixedly connected with a motor bottom plate, a servo speed reducer is installed at the bottom of the motor bottom plate, the output end of the servo speed reducer is fixedly connected with a feed screw rod through a coupler, the feed screw rod is coaxially arranged, the feed screw rod is sleeved with a feed tool rest in a threaded mode, and one side of the motor bottom plate is fixedly connected with two symmetrically-arranged linear guide rails. The feeding tool rest is in sliding connection with the two linear guide rails at the same time, and a cutting blade is fixedly arranged on the feeding tool rest. The effects of improving the pipe cutting precision and avoiding the oil leakage risk of equipment can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting technology, specifically a servo feed cutting device. Background Technology

[0002] Currently, in the modern pipe processing industry, especially for large pipes with a diameter of 250 mm or more, achieving efficient and high-precision cutting operations is crucial. Servo-controlled precision cutting devices use a sophisticated servo control system to achieve fine adjustments and precise control of the cutting feed, ensuring that every cut meets the expected precision standards.

[0003] For example, the patent with announcement number CN110977011B discloses a pipe cutting device. In this patent, the pipe cutting device can provide support and positioning for the end of the pipe during cutting, and can achieve automatic and stable feeding during the cutting process of the cutting tool, saving manpower and improving production efficiency.

[0004] In the aforementioned patent, an air pump is used to inflate the feed channel, and the air pressure is used to push the pipe into the groove of the support for cutting. However, fluctuations in air pressure and friction of the pipe in the channel may affect the accurate position of the pipe being pushed, resulting in insufficient precision in fixed-length cutting. In addition, during operation, the internal mechanical structure of the device may have gaps due to friction. If lubrication is not proper, oil leakage may occur, affecting the stable operation of the equipment.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a servo feed cutting device to improve the cutting accuracy of pipes and avoid the risk of equipment oil leakage.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a servo feed cutting device, including a cutting frame assembly and a cutting housing, a revolution reducer is installed on the top of the cutting housing, the output end of the revolution reducer is fixedly connected to a coaxial rotating shaft through a coupling, a V-belt pulley is fixedly sleeved on the outer circumferential surface of the rotating shaft, a cavity is opened inside the cutting housing, a feed wheel is rotatably installed inside the cavity, and the V-belt pulley and the feed wheel are jointly sleeved on a V-belt body;

[0008] A motor base plate is fixedly connected to one side of the feed wheel. A servo reducer is installed at the bottom of the motor base plate. The output end of the servo reducer is fixedly connected to a coaxial feed screw through a coupling. A feed tool holder is threaded onto the feed screw. Two symmetrically arranged linear guides are fixedly connected to one side of the motor base plate. The feed tool holder is slidably connected to both linear guides. A cutting blade is fixedly mounted on the feed tool holder.

[0009] Furthermore, the cutting frame assembly includes a fixed frame and a pipe rack. Two symmetrically arranged sliding guide rails are fixedly installed on the fixed frame. The cutting housing is slidably installed with both sliding guide rails. An electrical cabinet is installed on the fixed frame. Two symmetrically arranged clamping cylinders are installed on both sides of the cutting housing. A clamping plate is fixedly connected to the output end of the clamping cylinder.

[0010] Furthermore, two symmetrically arranged guide rods are fixedly connected to both sides of the cutting shell, and a lifting support plate is slidably sleeved on the two guide rods. Two symmetrically arranged lifting cylinders are installed on the fixed frame, and the output end of the lifting cylinder is fixedly connected to the bottom of the corresponding lifting support plate. The tube frame is fixedly connected to one side of one of the lifting support plates.

[0011] Furthermore, hydraulic cylinders are fixedly connected to both sides of the fixed frame, and a crossbar is fixedly connected to the output end of one of the hydraulic cylinders. Guide wheels are rotatably installed at both ends of the crossbar. The pipe frame is simultaneously in movable cooperation with two guide wheels. A feeding roller is fixedly connected to the output end of the other hydraulic cylinder.

[0012] Furthermore, the inside of the cutting housing is provided with a straight groove, the V-belt body passes through the straight groove, and both the V-belt pulley and the feed wheel are provided with V-belt grooves, with the V-belt body sleeved inside the V-belt groove.

[0013] Furthermore, a follower cylinder is installed on the fixing frame, and the output end of the follower cylinder is fixedly connected to one side of the cutting housing.

[0014] The beneficial effects of this application are: the pipe enters the cutting housing through the lifting pallet and feeding roller, and the feeding length of the pipe is controlled. After the pipe reaches the cutting length, the servo reducer starts to drive the cutting blade to cut into the outer diameter of the pipe. At the same time, the revolution reducer drives the feed wheel and the blade to start rotating around the pipe through the V-belt pulley and V-belt body, thereby realizing the fixed length cutting of the pipe. At the same time, without the use of components such as oil cylinders and oil pipes, the risk of oil leakage failure is also avoided. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cutting shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the motor base plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the V-belt body of this utility model.

[0021] In the diagram: 1. Cutting machine frame assembly; 101. Fixing frame; 102. Clamping cylinder; 103. Clamping plate; 104. Guide rod; 105. Lifting support plate; 106. Pipe rack; 107. Guide wheel; 108. Lifting cylinder; 109. Feeding roller; 110. Electrical cabinet; 111. Sliding guide rail;

[0022] 2. Revolutionary reducer; 3. V-belt pulley; 4. V-belt body; 5. Motor base plate; 6. Servo reducer; 7. Feed wheel; 8. Feed screw; 9. Linear guide rail; 10. Feed tool holder; 11. Cutting blade; 12. Cutting housing. Detailed Implementation

[0023] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] like Figure 1-5 As shown, this application provides a servo feed cutting device, including a cutting frame assembly 1 and a cutting housing 12. A revolution reducer 2 is installed on the top of the cutting housing 12. The output end of the revolution reducer 2 is fixedly connected to a coaxial rotating shaft through a coupling. A V-belt pulley 3 is fixedly sleeved on the outer circumferential surface of the rotating shaft. A cavity is opened inside the cutting housing 12. A feed wheel 7 is rotatably installed inside the cavity. The V-belt pulley 3 and the feed wheel 7 are together sleeved on a V-belt body 4.

[0025] A motor base plate 5 is fixedly connected to one side of the feed wheel 7. A servo reducer 6 is installed at the bottom of the motor base plate 5. The output end of the servo reducer 6 is fixedly connected to a coaxial feed screw 8 through a coupling. A feed tool holder 10 is threaded onto the feed screw 8. Two symmetrically arranged linear guides 9 are fixedly connected to one side of the motor base plate 5. The feed tool holder 10 is slidably connected to both linear guides 9. A cutting blade 11 is fixedly installed on the feed tool holder 10.

[0026] like Figure 1-5 As shown, the cutting frame assembly 1 includes a fixed frame 101 and a pipe rack 106. Two symmetrically arranged sliding guide rails 111 are fixedly installed on the fixed frame 101. The cutting housing 12 is slidably installed with both sliding guide rails 111. An electrical cabinet 110 is installed on the fixed frame 101. Two symmetrically arranged clamping cylinders 102 are installed on both sides of the cutting housing 12. A clamping plate 103 is fixedly connected to the output end of the clamping cylinder 102.

[0027] like Figure 1-5 As shown, two symmetrically arranged guide rods 104 are fixedly connected to both sides of the cutting housing 12. The two guide rods 104 are slidably sleeved with a lifting plate 105. Two symmetrically arranged lifting cylinders 108 are installed on the fixed frame 101. The output end of the lifting cylinder 108 is fixedly connected to the bottom of the corresponding lifting plate 105. The pipe frame 106 is fixedly connected to one side of one of the lifting plates 105. Hydraulic cylinders are fixedly connected to both sides of the fixed frame 101. A crossbar is fixedly connected to the output end of one of the hydraulic cylinders. Guide wheels 107 are rotatably installed at both ends of the crossbar. The pipe frame 106 is simultaneously in movable cooperation with the two guide wheels 107. A feeding roller 109 is fixedly connected to the output end of the other hydraulic cylinder.

[0028] like Figure 1-5 As shown, a straight groove is provided inside the cutting housing 12, the V-belt body 4 passes through the straight groove, and V-belt grooves are provided on both the V-belt pulley 3 and the feed wheel 7. The V-belt body 4 is fitted inside the V-belt groove, and a follower cylinder is installed on the fixing frame 101. The output end of the follower cylinder is fixedly connected to one side of the cutting housing 12.

[0029] The working principle of this utility model is as follows: First, the pipe to be cut is placed on the feeding roller 109 and the lifting plate 105. After placement, the lifting cylinder 108 and the hydraulic cylinder are started at the same time, and the pipe is lifted upward until it rises to the circular through hole opened on the cutting housing 12. The pipe enters the interior of the cutting housing 12 through the circular through hole, and the length of the pipe is controlled.

[0030] When the pipe is fed to the preset cutting length, the servo reducer 6 and the clamping cylinder 102 are activated. The clamping cylinder 102 pushes the clamping plate 103 to clamp the pipe. The servo reducer 6 starts and drives the feed screw 8 to rotate. The feed screw 8 converts the rotational motion into the linear motion of the feed tool holder 10. The feed tool holder 10 slides along the axial direction of the linear guide rail 9. At the same time, the cutting blade 11 fixed on the feed tool holder 10 also moves and cuts into the outer diameter part of the pipe.

[0031] In this embodiment, the control of the pipe feeding length can be achieved by a distance measuring sensor or a length measuring roller device. The distance measuring sensor illuminates the pipe to determine the moving length of the pipe. The length measuring roller device includes a roller and a length measuring encoder coaxially connected to the roller. The roller contacts the pipe, and the pipe moves to drive the roller to rotate. The length measuring encoder collects the number of rotations of the roller to determine the moving length of the pipe. Both of these are existing technologies and will not be described in detail in this embodiment.

[0032] In addition, during the cutting process, the rotary reducer 2 starts simultaneously, and the V-belt pulley 3 drives the feed wheel 7 to rotate around the pipe through the V-belt, thereby realizing the circumferential cutting of the pipe. During the cutting process, because the feeding roller 109 rotates continuously and the pipe is fixedly clamped by the clamping cylinder 102 and the lifting plate 105, the rotation of the feeding roller 109 will simultaneously push the pipe and the cutting housing 12 to move together. A limit device is set on the fixed frame 101. The cutting housing 12 continues to move until it contacts the limit device. The limit device is triggered, the cutting housing 12 stops moving, and the pipe is cut. Then the servo reducer 6 reverses, the feed screw 8 also reverses, the feed tool holder 10 and the cutting blade 11 exit the pipe, and the rotary reducer 2 also stops rotating.

[0033] Furthermore, after the cutting is completed, the follow-up cylinder is activated, pushing the cutting housing 12 in the reverse direction to the initial cutting position, ready to wait for the cutting of the next pipe. If it is necessary to change to pipes of different diameters for cutting, the frequency conversion speed of the electrical system in the electrical cabinet can be adjusted to ensure the flatness of the pipe cutting cut. The entire pipe cutting process is directly controlled by the encoder sending signals to drive the servo reducer 6 and the revolution reducer 2 to rotate, thereby realizing the infeed tool holder 10 and the cutting blade 11 to infeed and cut. This control method has no extra transmission links, which improves the cutting efficiency. At the same time, since no components such as oil cylinders and oil pipes are used, the risk of failure such as oil leakage is avoided, and the labor cost is reduced.

[0034] It should be noted that the control part of this cutting device adopts Siemens PLC, which realizes the coordinated operation of the cutting action. Among them, the clamping cylinder 102, the lifting cylinder 108, the revolution reducer 2 and the servo reducer 6 are all electrically connected to the Siemens PLC, thereby realizing the control and monitoring of the cutting process.

[0035] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A servo feed cutting device, characterized by, Including cutting frame assembly (1) and cutting shell (12), the top of cutting shell (12) is installed revolution reducer (2), the output end of revolution reducer (2) is fixedly connected with coaxially arranged rotating shaft, the outer circumferential surface of rotating shaft is fixedly sleeved with V pulley (3), the inside of cutting shell (12) is provided with cavity, the inside of cavity is rotatably installed feed wheel (7), V pulley (3) and feed wheel (7) are jointly sleeved with V belt body (4). The side of feed wheel (7) is fixedly connected with motor bottom plate (5), the bottom of motor bottom plate (5) is installed servo reducer (6), the output end of servo reducer (6) is fixedly connected with coaxially arranged feed screw rod (8) through coupling, feed screw rod (8) is threadedly sleeved with feed rest (10), the side of motor bottom plate (5) is fixedly connected with two symmetrical linear guides (9), feed rest (10) is simultaneously connected with two linear guides (9) slidingly, cutting blade (11) is fixedly arranged on feed rest (10).

2. A servo- feed cutting device according to claim 1, characterised in that: The cutting frame assembly (1) includes a fixed frame (101) and a pipe frame (106), the fixed frame (101) is fixedly provided with two symmetrical sliding rails (111), the cutting shell (12) is slidably arranged with the two sliding rails (111), the fixed frame (101) is provided with an electrical cabinet (110), the cutting shell (12) is provided with two symmetrical clamping cylinders (102) on both sides, the output end of the clamping cylinder (102) is fixedly connected with a clamping plate (103).

3. A servo- feed cutting device according to claim 2, wherein: The cutting shell (12) is fixedly connected with two symmetrical guide rods (104) on both sides, the two guide rods (104) are slidably sleeved with a lifting support plate (105), the fixed frame (101) is provided with two symmetrical lifting cylinders (108), the output end of the lifting cylinder (108) is fixedly connected with the bottom of the corresponding lifting support plate (105), the pipe frame (106) is fixedly connected with one side of one of the lifting support plates (105).

4. A servo- feed cutting device according to claim 2, wherein: The fixed frame (101) is fixedly connected with a hydraulic cylinder on both sides, the output end of one of the hydraulic cylinders is fixedly connected with a cross bar, the cross bar is rotatably installed with guide wheels (107) at both ends, the pipe frame (106) is movably connected with the two guide wheels (107), the output end of the other hydraulic cylinder is fixedly connected with a feeding roller (109).

5. A servo- feed cutting device according to claim 1, characterized in that: The cutting shell (12) is provided with a straight groove in the inside, the V belt body (4) passes through the straight groove, the V pulley (3) and the feed wheel (7) are provided with V belt grooves, and the V belt body (4) is sleeved in the V belt grooves.

6. A servo- feed cutting device according to claim 2, wherein: The fixed frame (101) is provided with a follow-up cylinder, and the output end of the follow-up cylinder is fixedly connected with one side of the cutting shell (12).

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