Automatic control device for precise cutting of end face of complex steel pipe

Abstract

The invention discloses an automatic control device for precise cutting of the end face of a complex steel pipe, and relates to the technical field of steel pipe cutting equipment, the automatic control device comprises a steel pipe clamping piece, a supplied steel pipe arranged on one side of the steel pipe clamping piece, a first laser light curtain and a second laser light curtain, and the first laser light curtain and the second laser light curtain are both arranged on the feeding side of the steel pipe clamping piece; the second laser light curtain is located above the first laser light curtain, and a covering area formed by the second laser light curtain and the first laser light curtain coincides with the highest point of the end face of the incoming steel pipe. The cutter head is arranged on one side of the discharging end of the steel pipe clamping piece, and a cutting blade is arranged on the side, close to the steel pipe clamping piece, of the cutter head and used for cutting incoming steel pipes. By means of cooperation of the laser light curtain, the controller and the like, actions of all links can be controlled, manual operation errors are reduced, process data can be calculated according to detection signals, precise cutting of the cutter head is guaranteed, and the production efficiency is improved. By means of the device, length measurement and weighing of the steel pipe can be automatically achieved, and follow-up statistics and quality control are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe cutting equipment, and in particular to an automatic control device for precise cutting of complex steel pipe end faces. Background Art

[0002] At present, the flat head chamfering machines used by domestic pipe manufacturing companies still adopt a processing mode in which two operators operate the equipment at the same time. When the steel pipe is placed on the equipment rollers, the operators at both ends of the equipment will perform a series of operations such as steel pipe clamping, cutter head alignment, quantitative cutting, rapid tool retraction, weighing and length measurement in sequence according to the end face conditions of the steel pipe. The operation is cumbersome and leads to low work efficiency.

[0003] Especially for the situation of manual cutting of the arc-extinguishing plate, the end face of the steel pipe becomes uneven after manual cutting, which requires the operator to concentrate highly when performing the tool setting operation and manually determine the position of the most convex point of the steel pipe end face from the cutting point of the cutting blade, which is equivalent to recording the movement position of the cutter disc. In this process, if the operator makes an error in observation, the cutter disc will not be able to accurately determine the position of the most convex point of the steel pipe when cutting the end face of the steel pipe, resulting in the cutter disc feeding too deep, excessive cutting, and damage to the blade or even the cutter seat, which is the main cause of equipment damage. Summary of the invention

[0004] The object of the present invention is to provide an automatic control device for precise cutting of complex steel pipe end faces, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides an automatic control device for precise cutting of complex steel pipe end faces, comprising a steel pipe clamp and an incoming steel pipe arranged on one side of the steel pipe clamp, comprising: The first laser light curtain and the second laser light curtain are both arranged on the feeding side of the steel pipe clamping part, and the second laser light curtain is located above the first laser light curtain, and the coverage area formed by the combination thereof coincides with the highest point of the end face of the incoming steel pipe; The cutter disc body is arranged on one side of the discharge end of the steel pipe clamping piece. A cutting blade is arranged on the side of the cutter disc body close to the steel pipe clamping piece for cutting the incoming steel pipe. A cutter disc rotation servo motor is arranged on one side of the cutter disc body for driving the cutter disc body.

[0006] Furthermore, a large slide seat is connected to the bottom of the steel pipe clamp, and a large slide seat servo motor for driving the large slide seat to slide is provided on the large slide seat.

[0007] Furthermore, a small slide seat is connected to the top of the large slide seat, and a small slide servo motor for driving the small slide seat to slide is also arranged on the top of the large slide seat.

[0008] Furthermore, a trustee is provided on one side of the large slide seat, and a weighing sensor is provided on the top of the trustee for measuring the weight of the steel pipe after cutting.

[0009] Furthermore, a conveying trolley is provided on one side of the large slide seat for placing and conveying incoming steel pipes.

[0010] Furthermore, a controller is provided on one side of the steel pipe clamping piece for electrically connecting the cutter disc rotation servo motor, the small slide servo motor and the large slide servo motor.

[0011] Compared with the prior art, the present invention has the following beneficial effects: Relying on the cooperation of laser light curtain and controller, it can control the actions of each link and reduce manual operation errors. The process data can be calculated based on the detection signal to ensure the accurate cutting of the cutter body and guarantee the processing quality. This setting can automatically measure the length and weigh the steel pipe, which is convenient for subsequent statistics and quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 For the present invention Figure 1 A magnified view of the structure at center A; Figure 4 For the present invention Figure 1 A magnified view of the structure at point B.

[0013] In the figure: 1. Incoming steel pipe; 2. Steel pipe clamping part; 3. First laser light curtain; 4. Second laser light curtain; 5. Cutter rotation servo motor; 6. Cutter body; 7. Cutting blade; 8. Small slide servo motor; 9. Small slide seat; 10. Large slide servo motor; 11. Large slide seat; 12. Tube holder; 13. Weighing sensor. DETAILED DESCRIPTION

[0014] 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.

[0015] See also Figure 1-4 The present invention provides a technical solution: an automatic control device for precise cutting of complex steel pipe end faces, comprising a steel pipe clamp 2 and an incoming steel pipe 1 arranged on one side of the steel pipe clamp 2, including: The first laser light curtain 3 and the second laser light curtain 4 are both arranged on the feeding side of the steel pipe clamp 2, and the second laser light curtain 4 is located above the first laser light curtain 3, and the coverage area formed by the combination thereof coincides with the highest point of the end face of the incoming steel pipe 1; The cutter body 6 is arranged on one side of the discharge end of the steel pipe clamping part 2. A cutting blade 7 is arranged on one side of the cutter body 6 close to the steel pipe clamping part 2 for cutting the incoming steel pipe 1. A cutter body 6 cutter rotation servo motor 5 for driving the cutter body 6 is arranged on one side of the cutter body 6. A large slide seat 11 is connected to the bottom of the steel pipe clamp 2 , and a large slide seat servo motor 10 is provided on the large slide seat 11 for driving the large slide seat 11 to slide.

[0016] It should be noted that L2 is the distance from the convex point position of the steel pipe end face to the reference plane during the forward positioning of the large slide seat 11, and this data is a preset value. L1 is the distance from the cutting blade 7 to the reference plane, which is obtained by measurement. The distance from the cutting blade 7 to the convex point of the steel pipe end face can be obtained by calculating L3= L1- L2. L4 is the cutting amount of the pipe end, and this data is a preset value. L5 is the distance between the reference planes detected by the laser light curtain when the left and right machine cutting is completed. Therefore, the length of the steel pipe after cutting L = L5 + 2 × (L2-L4).

[0017] In specific implementation, when the incoming steel pipe 1 is transported to the feeding side close to the steel pipe clamp 2, as the incoming steel pipe 1 advances, the highest point of its end face first enters the coverage area formed by the first laser light curtain 3 and the second laser light curtain 4. Due to the special layout of the two laser light curtains, when the highest point of the end face of the steel pipe passes through this area, the laser light curtain will be blocked, thereby generating corresponding signal changes. The first laser light curtain 3 and the second laser light curtain 4 will quickly convert this blocking signal into an electrical pulse signal and transmit it to the control system of the device. After receiving the pulse signal from the laser light curtain, the control system will immediately control the large slide servo motor 10 to stop pushing the steel pipe clamp 2 or adjust its movement speed and position so as to accurately position the steel pipe at the predetermined processing starting position.

[0018] At the same time, the control system triggers the cutter body 6 to start the cutter disc rotation servo motor 5 according to the laser light curtain signal. After receiving the command, the cutter body 6 cutter disc rotation servo motor 5 starts to rotate at high speed, driving the cutter body 6 connected thereto and the cutting blade 7 on the cutter body 6 to rotate synchronously.

[0019] See also Figure 1 The top of the large slide seat 11 is connected to the small slide seat 9, and the top of the large slide seat 11 is also provided with a small slide servo motor 8 for driving the small slide seat 9 to slide. During specific implementation, when the device starts working, the incoming steel pipe 1 is transported to the corresponding position, and the large slide seat 11 completes the initial positioning action under the drive of the large slide servo motor 10. Then, the small slide servo motor 8 starts to intervene in the work, and the small slide servo motor 8 drives the small slide seat 9 connected to it to slide on the top of the large slide seat 11.

[0020] See also Figure 3 A trustee piece 12 is provided on one side of the large slide seat 11, and a weighing sensor 13 is provided on the top of the trustee piece 12 for measuring the weight of the steel pipe after cutting.

[0021] In specific implementation, since the weighing sensor 13 is installed on the top of the tube member 12, when the steel pipe is lifted by the tube member 12 and placed on the weighing sensor 13, the weighing sensor 13 is used to measure the weight of the steel pipe after cutting to realize the length measurement and weighing function of the steel pipe.

[0022] refer to Figure 1 A conveying trolley is provided on one side of the large slide seat 11 for placing and conveying the incoming steel pipe 1.

[0023] During specific implementation, the provided conveying trolley is used to place and convey the incoming steel pipe 1.

[0024] See also Figure 1 A controller is provided on one side of the steel pipe clamp 2 for electrically connecting the cutter body 6, the cutter rotation servo motor 5, the small slide servo motor 8 and the large slide servo motor 10.

[0025] During specific implementation, it is used to receive the pulse signals of the first laser light curtain 3 and the second laser light curtain 4, and control the operation mode of the large slide servo motor 10 and a series of actions of the cutter disc body 6 according to the signals, including controlling the large slide servo motor 10 to change from the speed mode to the positioning mode after receiving the laser light curtain pulse signal, controlling the large slide seat 11 to move to the set position and then stop, automatically calculating the process data of the cutter disc body 6 to complete the quantitative cutting according to the laser tube light curtain detection signal, controlling the cutter disc body 6 to achieve the actions of quickly approaching the convex point position of the pipe end, rotating and starting, uniform and precise cutting, and quickly retracting the cutter, and after the steel pipe clamping part 2 releases the incoming steel pipe 1 and the trustee part 12 rises to separate the incoming steel pipe 1 from the steel pipe clamping part 2, the length of the steel pipe after cutting is automatically calculated according to the processing data of the left and right machines.

[0026] Working principle: the incoming steel pipe 1 is placed on the tube holder 12 by the conveyor trolley, and the large slide servo motor 10 drives the large slide seat 11 to move forward. During the movement, when the highest point of the end face of the incoming steel pipe 1 passes through the laser light curtain coverage area on the steel pipe clamp 2, the first laser light curtain 3 or the second laser light curtain 4 will send a pulse signal to the controller. At this time, the controller controls the large slide servo motor 10 to change from speed mode to positioning mode, and the large slide seat 11 moves forward to the set position and then stops. When the above actions are completed on both sides, the tube holder 12 falls, and the incoming steel pipe 1 falls on the steel pipe clamp 2, and the steel pipe clamp 2 clamps the steel pipe. The controller automatically calculates all the process data for the cutter body 6 to complete quantitative cutting according to the laser tube light curtain detection signal, and controls the cutter body 6 to quickly approach the convex point position of the pipe end, and the cutter body 6 starts to rotate, performs a series of actions such as uniform and precise cutting, and quickly retracts the cutter. When the above actions are completed on both sides, the steel pipe clamping part 2 releases the incoming steel pipe 1, the trustee part 12 rises to separate the incoming steel pipe 1 from the steel pipe clamping part 2, and the large slide seat 11 retreats back to the original position. At this time, the controller automatically calculates the length of the steel pipe after cutting according to the processing data of the left and right machines, and measures the weight of the steel pipe after cutting through the weighing sensor 13 installed on the trustee part 12, thereby realizing the length measurement and weighing function of the steel pipe.

Claims

1. An automatic control device for precise cutting of complex steel pipe end faces, comprising a steel pipe clamp (2) and an incoming steel pipe (1) arranged on one side of the steel pipe clamp (2), characterized in that: include, The first laser light curtain (3) and the second laser light curtain (4) are both arranged on the feeding side of the steel pipe clamping member (2), the second laser light curtain (4) being located above the first laser light curtain (3), and the coverage area formed by the combination thereof coincides with the highest point of the end face of the incoming steel pipe (1); A cutter disc body (6) is arranged on one side of the discharge end of the steel pipe clamping piece (2); a cutting blade (7) is arranged on the side of the cutter disc body (6) close to the steel pipe clamping piece (2) for cutting the incoming steel pipe (1); and a cutter disc rotation servo motor (5) for driving the cutter disc body (6) is arranged on one side of the cutter disc body (6).

2. An automatic control device for precise cutting of complex steel pipe end faces as claimed in claim 1, characterized in that: The bottom of the steel pipe clamp (2) is connected to a large slide seat (11), and the large slide seat (11) is provided with a large slide servo motor (10) for driving the large slide seat (11) to slide.

3. An automatic control device for precise cutting of complex steel pipe end faces as claimed in claim 2, characterized in that: The top of the large slide seat (11) is connected to a small slide seat (9), and the top of the large slide seat (11) is also provided with a small slide servo motor (8) for driving the small slide seat (9) to slide.

4. An automatic control device for precise cutting of complex steel pipe end faces as claimed in claim 2, characterized in that: A tube holder (12) is provided on one side of the large slide seat (11), and a weighing sensor (13) is provided on the top of the tube holder (12) for measuring the weight of the steel pipe after cutting.

5. An automatic control device for precise cutting of complex steel pipe end faces as claimed in claim 2, characterized in that: A conveying trolley is provided on one side of the large slide seat (11) for placing and conveying the incoming steel pipe (1).

6. The automatic control device for precise cutting of complex steel pipe end faces according to claim 1, characterized in that: A controller is provided on one side of the steel pipe clamp (2) for electrically connecting the cutter disc rotation servo motor (5), the small slide servo motor (8) and the large slide servo motor (10).

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