A method for continuously processing pipes

Abstract

The present invention relates to the technical field of pipe processing, and discloses a method for continuously processing pipes, comprising the following steps: determining whether the position of the fixed-length plate matches the length of the pipe to be processed, the fixed-length plate limiting the length of the pipe, and a cutting wheel cutting the pipe; a grinding clamping cylinder of a grinding mechanism clamping the cut pipe; an inner grinding head of an inner grinding device being inserted into both ends of the pipe; a roller motor and an inner grinding drive motor of the grinding mechanism driving the pipe to rotate, and the rotational speed of the roller motor being less than that of the inner grinding drive motor; a second feeding device of the grinding mechanism driving an outer grinding device to fit with the outer wall of the pipe and grinding the outer wall of the pipe; when the output torque of the second feeding device reaches a set torque value, the outer grinding device stops feeding and delays grinding the pipe: a cleaning mechanism cleaning the ground pipe. The multi-process continuous processing of pipe cutting, grinding and cleaning is realized, and the pipe processing efficiency and quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and particularly relates to a method for continuously processing pipes. Background Art

[0002] In the prior art, a cutting device is used to cut steel pipes, and certain deformation and a large number of burrs will be generated at the pipe ends. Therefore, the steel pipes need to be transported to a grinding device for grinding. During grinding, a cylinder is used to position the grinding position, and an abrasive cloth wheel is used to grind the pipe ends. As the abrasive cloth wheel wears, manual adjustment of the grinding position is required, which is prone to inaccurate positioning and deviation, affecting the grinding effect and quality of the pipe ends. Moreover, the existing grinding devices can only grind pipes of a single model and cannot continuously process pipes of multiple models, affecting the processing efficiency of pipes. When processing pipes in different processes, the pipes need to be transferred to different devices for separate processing, and continuous processing of pipes cannot be achieved, affecting the processing efficiency of pipes. Summary of the Invention

[0003] The present invention provides a method for continuously processing pipes in view of the existing technical problems.

[0004] The technical solution for the present invention to solve the above technical problems is as follows: A method for continuously processing pipes includes the following steps:

[0005] Step S1: Determine whether the position of the sizing plate of the sizing cutting mechanism matches the length of the pipe to be processed. If not, the sizing plate is moved to a position corresponding to the pipe to be processed; if it matches, the clamping block of the sizing cutting mechanism clamps the pipe to be processed, and then the cutting wheel of the sizing cutting mechanism cuts the pipe to be processed;

[0006] Step S2: The grinding clamping cylinder of the grinding mechanism clamps the cut pipe;

[0007] Step S3: The inner grinding heads of the inner grinding device are inserted into both ends of the pipe;

[0008] Step S4: The roller motor and the inner grinding drive motor of the grinding mechanism drive the pipe to rotate, and the rotation speed of the roller motor is less than the rotation speed of the inner grinding drive motor;

[0009] Step S5: The second feeding device of the grinding mechanism drives the outer grinding device to fit with the outer wall of the pipe and grinds the outer wall of the pipe;

[0010] Step S6: When the output torque of the second feeding device reaches the set torque value, the outer grinding device stops feeding and grinds the pipe with a time delay;

[0011] Step S7: The cleaning mechanism cleans the ground pipe.

[0012] Based on the above technical solutions, the present invention can also be improved as follows:

[0013] Preferably, step S1 includes: the difference D between the length of the pipe to be processed and the actual position of the sizing plate is D = L3 - {L2 - C ÷ [(A ÷ L1) × B]}, where A is the number of pulses emitted by the servo motor per revolution; B is the gear ratio; C is the actual value of the servo motor encoder; L1 is the moving distance of the sizing plate corresponding to one revolution of the servo motor, in mm; L2 is the distance between the cutting wheel and the zero point of the sizing plate, in mm; L3 is the length of the pipe to be processed, in mm.

[0014] If the difference D is within the set range, it indicates that the current position of the sizing plate matches the length of the pipe to be processed, and the sizing plate does not need to move;

[0015] If the difference D is not within the set range, it indicates that the current position of the sizing plate does not match the length of the pipe to be processed, and the sizing plate needs to move.

[0016] Preferably, the moving distance L of the sizing and cutting mechanism is L = [(A ÷ L1) × B] × (L2 - L3);

[0017] where A is the number of pulses emitted by the servo motor per revolution; B is the gear ratio; L1 is the moving distance of the sizing plate corresponding to one revolution of the servo motor, in mm; L2 is the distance between the cutting wheel and the zero point of the sizing plate, in mm; L3 is the length of the pipe to be processed, in mm.

[0018] Preferably, between step S1 and step S2, there is also step S10: the number of cuts for a single pipe is N = E × F ÷ L3; where E is the total length of the raw material pipe, in mm; F is the elongation rate after rolling teeth; L3 is the length of the pipe to be processed, in mm.

[0019] Preferably, between step S1 and step S2, there is also step S12: determine whether there is a pipe at the grinding station of the grinding mechanism. If not, the second conveying mechanism conveys the cut pipe to the grinding station; if there is a pipe at the grinding station of the grinding mechanism, the second conveying mechanism pauses.

[0020] Preferably, between step S6 and step S7, there is also step S61. After grinding is completed, the third conveying mechanism conveys the pipe to the storage station, and determine whether the number of pipes G at the storage station is equal to the set number of pipes for cleaning K. If G < K, the sizing and cutting mechanism continues to work;

[0021] If G = K and there is no pipe at the cleaning mechanism, the receiving mechanism conveys the pipe to the cleaning mechanism.

[0022] Preferably, it further includes step S71: The cleaning mechanism includes multiple cleaning tanks. After the cleaning is completed, it is judged whether there is any pipe at the buffer station. If there is, it is judged whether the pipe at the buffer station and the cleaned pipe belong to the same batch. If so, the cleaned pipe is conveyed to the buffer station; if not, after the pipe at the buffer station is emptied, the cleaned pipe is conveyed to the buffer station.

[0023] Preferably, after step S10, it further includes step S11: When the number M of the pipes cut by the fixed-length cutting mechanism is equal to the set number Y of the pipes, the conveying and cutting of the pipes are paused.

[0024] Preferably, between step 61 and step S7, it further includes step S62, pipe batch switching. When the number J of the pipes polished by the polishing mechanism is equal to the set number Y of the pipes, and the polishing station has conveyed the remaining pipes to the cleaning mechanism, the polishing completion signal is sent to the host computer, and the host computer executes the processing of the next batch of pipes.

[0025] The beneficial effects of the present invention are as follows: It satisfies the multi-process continuous processing of pipe conveying, cutting, polishing and cleaning, and can realize the automatic switching of different specifications of pipe batches, realize the continuous processing of multiple batches of pipes, improve the pipe processing efficiency, control the polishing feed amount through the feeding device, with precise control and no need for adjustment, realize the precise polishing of pipes, improve the polishing quality of pipes, and can realize the automatic cleaning process of the polished pipes, further improving the overall processing efficiency of pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a top view schematic diagram of the fixed-length cutting mechanism, polishing mechanism and cleaning mechanism of the present invention;

[0027] Figure 2 It is a schematic diagram of the fixed-length cutting mechanism and polishing mechanism of the present invention Figure 1 ;

[0028] Figure 3 It is a schematic diagram of the fixed-length cutting mechanism and polishing mechanism of the present invention Figure 2 ;

[0029] Figure 4 It is a schematic diagram of the fixed-length cutting mechanism of the present invention;

[0030] Figure 5 It is a schematic diagram of the fixed-end polishing device of the present invention;

[0031] Figure 6 It is a schematic diagram of the mobile-end polishing device of the present invention;

[0032] Figure 7 It is of the present invention Figure 3 The enlarged schematic diagram at A in;

[0033] Figure 8 This is a schematic diagram of the material receiving mechanism of the present invention.

[0034] Reference numerals: 100, the first conveying mechanism; 200, the fixed-length cutting mechanism; 201, the fixed-length plate; 202, the support frame; 203, the fixed-length motor; 204, the first feeding device; 205, the cutting motor; 206, the cutting wheel; 207, the clamping cylinder; 208, the clamping block; 300, the second conveying mechanism; 301, the ejecting frame; 302, the ejecting cylinder; 303, the guiding plate; 400, the grinding mechanism; 410, the fixed-end grinding device; 411, the inner grinding driving motor; 412, the inner grinding head; 413, the idler roller motor; 414, the idler roller; 415, the grinding clamping cylinder; 416, the second feeding device; 417, the outer grinding driving motor; 418, the outer grinding wheel; 420, the mobile-end grinding device; 421, the support plate; 422, the frame body; 423, the rack; 500, the pushing cylinder; 600, the storage station; 601, the stop cylinder; 602, the first connecting rod; 603, the storage plate; 604, the pin shaft; 700, the cleaning mechanism; 701, the first cleaning tank; 7011, the material receiving cylinder; 7012, the second connecting rod; 7013, the rotating shaft; 7014, the material receiving claw; 702, the second cleaning tank; 703, the third cleaning tank; 704, the fourth cleaning tank; 800, the buffer station; 900, the pipe. Detailed implementation manners

[0035] In order to enable those skilled in the art of the present technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The terms "vertical", "upper", "lower", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] As Figures 1 to 8 shown, the present invention discloses a method for continuously processing pipes, including the following steps:

[0037] Step S1: Set parameters of the pipe to be processed, such as the length of pipe 900 and the number of cutting times. The first conveying mechanism 100 conveys pipe 900 to the fixed-length cutting mechanism 200, and determines whether the position of the fixed-length cutting mechanism 200 matches the length of the pipe 900 to be processed. If not, the fixed-length cutting mechanism 200 moves to a position corresponding to the pipe 900 to be processed. Specifically, the fixed-length cutting mechanism 200 includes a fixed-length plate 201 and a fixed-length motor 203. The fixed-length plate 201 is installed on the support plate 421 through a support frame 202, and the support plate 421 is slidably installed on the frame body 422. The output end of the fixed-length motor 203 is provided with a gear passing through the support plate 421, and a corresponding rack 423 is installed on the frame body 422. The rack 423 is arranged along the length direction of the frame body 422, that is, along the conveying direction of the pipe 900. By controlling the operation of the fixed-length motor 203, the fixed-length plate 201 is driven to move to the corresponding position, and the fixed-length plate 201 limits the length of the pipe 900 to be processed, so that the length of the pipe 900 to be processed corresponds to the set length, ensuring the processing quality of the pipe 900. Refer to Figure 3 and Figure 6 as shown;

[0038] Furthermore, a positioning groove is provided at the lower end of the fixed-length plate 201, and the positioning groove limits the pipe 900, solving the problem of the pipe 900 sliding and ensuring the cutting accuracy of the pipe 900.

[0039] The difference D between the length of the pipe 900 to be processed and the actual position of the fixed-length plate 201 is: D = L3 - {L2 - C ÷ [(A ÷ L1) × B]}, where A is the number of pulses generated by the servo motor for one revolution; B is the gear ratio; C is the actual value of the servo motor encoder; L1 is the moving distance of the fixed-length plate 201 corresponding to one revolution of the servo motor, in mm; L2 is the distance between the cutting wheel 206 and the zero point of the fixed-length plate 201, in mm; L3 is the length of the pipe 900 to be processed, in mm. If the difference D is within the range of ±1 mm, it means that the current position of the fixed-length plate 201 matches the length of the pipe 900 to be processed, and the fixed-length plate 201 does not need to move;

[0040] If the difference D is not within the above range, it means that the current position of the fixed-length plate 201 does not match the length of the pipe 900 to be processed, and the fixed-length plate 201 needs to move.

[0041] The moving distance of the fixed-length plate 201 is L: L = [(A ÷ L1) × B] × (L2 - L3); where A is the number of pulses generated by the servo motor for one revolution; B is the gear ratio; L1 is the moving distance corresponding to one revolution of the servo motor, in mm; L2 is the distance between the cutting wheel 206 and the zero point of the fixed-length plate 201, in mm; L3 is the length of the pipe 900 to be processed, in mm.

[0042] If the position of the fixed-length plate 201 matches the length of the pipe 900 to be processed, the fixed-length cutting mechanism 200 clamps and cuts the pipe 900 to be processed, and records the cutting times of the pipe 900.

[0043] Step S10: The cutting times N of a single pipe 900 is: N = E × F ÷ L3; where, E - total length of the raw material, in mm; F - elongation rate after rolling teeth; L3 - length of the pipe 900 to be processed, in mm.

[0044] Refer to Figure 4 As shown, specifically, the output end of the cutting motor 205 is connected to a cutting wheel 206, and the output end of the clamping cylinder 207 is connected to a clamping block 208. The clamping block 208 and the fixed block cooperate to clamp the pipe 900 to be cut. The fixed block and the clamping block 208 are located directly below the cutting wheel 206. The clamping block 208 and the fixed block are provided with a rectangular groove for accommodating the cutting wheel 206, and the fixed block and the clamping block 208 are provided with an arc groove for accommodating the pipe 900 to be cut. The rectangular groove intersects and communicates with the arc groove, and the bottom wall of the rectangular groove is lower than the arc groove to ensure that the pipe 900 is cut off. During operation, when the clamping cylinder 207 drives the clamping block 208 to move towards the fixed block, the pipe 900 to be cut is clamped. The first feeding device 204 of the fixed-length cutting mechanism 200 drives the cutting motor 205 and the cutting wheel 206 to descend. The cutting wheel 206 passes through the rectangular groove to cut the pipe 900. The rectangular groove plays a role in positioning and guiding the cutting wheel 206, ensuring the cutting accuracy of the pipe 900 and improving the cutting quality of the pipe 900. The cutting motor 205 selects a corresponding operating speed according to the material of the pipe 900, such as plastic or metal. When the material of the pipe 900 is metal, the operating speed of the cutting motor 205 is relatively high. The first feeding device 204 can be a cylinder to drive the cutting motor 205 to lift and lower, thereby realizing the cutting of the pipe 900.

[0045] Step S11: When the number M of pipes 900 cut by the fixed-length cutting mechanism 200 is equal to the set number Y of pipes 900, the first conveying mechanism 100 stops conveying and pauses cutting the pipes 900.

[0046] Step S12: The upper computer judges whether there is a pipe 900 at the grinding station of the grinding mechanism 400. If not, the second conveying mechanism 300 conveys the cut pipe 900 to the grinding station; if there is a pipe 900 at the grinding station of the grinding mechanism 400, the second conveying mechanism 300 pauses its action.

[0047] Refer to Figure 3As shown in the figure, specifically, the second conveying mechanism 300 includes a blanking cylinder 302 and a blanking frame 301. The output end of the blanking cylinder 302 is connected to the blanking frame 301. A plurality of blanking frames 301 are arranged at intervals along the length direction of the frame body 422 to ensure that the pipe 900 is stably lifted. A guide plate 303 is provided between the second conveying mechanism 300 and the grinding mechanism 400. The guide plate 303 is inclined towards the grinding mechanism 400. The blanking frame 301 lifts the pipe 900 onto the guide plate 303, and the pipe 900 moves along the guide plate 303 to the grinding station. There is an intermediate support plate at the grinding station, and the intermediate support plate is provided with an intermediate support groove for accommodating the pipe 900.

[0048] Referring to Figure 3 , Figure 5 and Figure 6 As shown in the figure, step S2: The grinding mechanism 400 includes a fixed-end grinding device 410 arranged at one end of the frame body 422 and a mobile-end grinding device 420 arranged at the other end of the frame body 422. The mobile-end grinding device 420 is installed on the support plate 421. When the sizing motor 203 works, it drives the support plate 421 and the mobile-end grinding device 420 to move, adjusts the distance between the fixed-end grinding device 410 and the mobile-end grinding device 420 to meet the usage requirements of pipes 900 of different lengths. The other structure of the mobile-end grinding device 420 is the same as that of the fixed-end grinding device 410. Taking the fixed-end grinding device 410 as an example for description, the fixed-end grinding device 410 includes a grinding clamping cylinder 415. The grinding clamping cylinder 415 clamps the cut pipe 900 through the cooperating rollers and the pipe 900 can rotate.

[0049] Step S3: The fixed-end grinding device 410 further includes an inner grinding drive motor 411. The output end of the inner grinding drive motor 411 is installed with an inner grinding head 412, and the inner grinding head 412 is inserted into the pipe 900.

[0050] Step S4: The fixed-end grinding device 410 further includes a roller motor 413. The output end of the roller motor 413 is connected with a roller 414. The outer wall of the roller 414 is in frictional contact with the outer wall of the pipe 900. When the inner grinding drive motor 411 and the roller motor 413 work, they drive the pipe 900 to rotate, and the rotation speed of the roller motor 413 is less than the rotation speed of the inner grinding drive motor 411, so that there is a speed difference between the inner grinding head 412 and the pipe 900, realizing the grinding of the end of the pipe 900. Specifically, the speed difference between the inner grinding head 412 and the pipe 900 is greater than or equal to 500 rpm.

[0051] Step S5: The fixed-end grinding device 410 further includes a second feeding device 416 and an external grinding device. The second feeding device 416 can be a cylinder. The second feeding device 416 drives the external grinding device to fit against the outer wall of the pipe 900. Specifically, the external grinding device includes an external grinding drive motor 417 and an external grinding wheel 418. The external grinding drive motor 417 drives the external grinding wheel 418 to rotate to grind the outer wall of the pipe 900.

[0052] Step S6: When the output torque of the second feeding device 416 reaches the set torque value, it indicates that the external grinding device has reached the specified position. Then the external grinding device stops feeding and continues to perform delayed grinding on the pipe 900, and records the number J of the pipes 900 being ground. The feeding amount of the external grinding device is controlled by the torque value to ensure the grinding accuracy and quality of the pipe 900. Among them, the delay time can be set according to the requirements of the pipe 900.

[0053] If the number J of the pipes 900 being ground is less than the set number Y of the pipes 900, the first conveying mechanism 100 continues to convey the pipes 900. When the number J of the pipes 900 being ground is equal to the set number Y of the pipes 900, the first conveying mechanism 100 stops conveying the pipes 900 and switches to the next batch of pipes 900.

[0054] Step S61, after reaching the time of delayed grinding, the grinding ends, and the grinding mechanism 400 returns to the initial position. The third conveying mechanism conveys the pipe 900 to the storage station 600. That is, the third conveying mechanism includes a pushing cylinder 500. The pushing cylinder 500 pushes the pipe 900 upward so that the pipe 900 moves along the inclined plane of the middle support plate to the storage station 600. Refer to Figure 7 As shown, the storage station 600 includes a material blocking cylinder 601. The output end of the material blocking cylinder 601 is hinged with a connecting rod one 602. The other end of the connecting rod one 602 is fixedly connected with a pin shaft 604. A plurality of storage plates 603 are uniformly fixedly installed on the pin shaft 604 along the length direction of the pin shaft 604 to improve the blocking effect on the pipe 900. The storage plate 603 is integrally L-shaped. When the material blocking cylinder 601 works, it drives the pin shaft 604 to rotate through the connecting rod one 602 to realize the upper end of the storage plate 603 blocking the release of the pipe 900 to the cleaning mechanism 700. The structure is simple and the operation is convenient.

[0055] The host computer judges whether the cumulative number of pipes G at the storage station 600 is equal to the set number of pipes K for cleaning. If G < K, the fixed-length cutting mechanism 200 and the grinding mechanism 400 continue to work;

[0056] If G = K and there is no pipe 900 at the cleaning mechanism 700, the receiving mechanism conveys multiple pipes 900 of the same batch to the cleaning mechanism 700;

[0057] Step S62: Tube batch switching of 900 tubes. When the number J of tubes 900 polished by the polishing mechanism 400 is equal to the set number Y of tubes 900, and when the polishing station has conveyed the remaining tubes 900 to the cleaning mechanism 700, a polished completion signal is sent to the host computer. The host computer then executes the processing of the next batch of tubes 900, realizing the automatic switching of different batches of tubes 900, achieving continuous processing of tubes 900, and improving the processing efficiency of tubes 900.

[0058] Step S7: The cleaning mechanism 700 cleans the polished tubes 900.

[0059] Step S71: The cleaning mechanism 700 includes multiple cleaning tanks. In this embodiment, the cleaning mechanism 700 includes a first cleaning tank 701, a second cleaning tank 702, a third cleaning tank 703, and a fourth cleaning tank 704 arranged in sequence. Among them, the first cleaning tank 701 ultrasonically cleans the tubes 900, and the second cleaning tank 702 to the fourth cleaning tank 704 rinse the tubes 900. The same receiving mechanism is installed in all four cleaning tanks. Taking the first cleaning tank 701 as an example, the receiving mechanism includes a receiving cylinder 7011. The output end of the receiving cylinder 7011 is connected to a second connecting rod 7012, and the other end of the second connecting rod 7012 is fixedly connected to a rotating shaft 7013. The rotating shaft 7013 is arranged along the length direction of the first cleaning tank 701, and multiple receiving claws 7014 are installed on the rotating shaft 7013.

[0060] During use, the receiving claws 7014 of the receiving mechanism move to the receiving position. The material blocking cylinder 601 drives the storage plate 603 to flip, turning the tubes 900 onto the receiving claws 7014. The receiving cylinder 7011 operates, driving the rotating shaft 7013 to rotate through the second connecting rod 7012, making the receiving claws 7014 in the low position. At this time, the tubes 900 are placed into the first cleaning tank 701 along the receiving claws 7014, reducing the splash of water and ensuring the cleanliness of the environment. The host computer transmits the current batch number and cleaning information of the tubes 900 to the first cleaning tank 701. Among them, the cleaning information includes the batch number, the number, length, cleaning times, and ultrasonic cleaning time of the tubes 900 corresponding to this batch. After the tubes 900 are placed in the first cleaning tank 701, the ultrasonic cleaning mechanism is triggered. The ultrasonic cleaning mechanism uses existing technology. The ultrasonic cleaning mechanism cleans the tubes 900 in segments according to the tube length for Ta minutes. After the tubes 900 complete ultrasonic cleaning in the first cleaning tank 701, the ultrasonic mechanism is turned off.

[0061] The host computer determines whether there is a pipe 900 in the second cleaning tank 702. If there is no pipe 900, the material receiving mechanism in the second cleaning tank 702 rises to the material receiving position. The material receiving cylinder 7011 in the first cleaning tank 701 drives the material receiving claw 7014 to lift upward to a certain height and stop at the middle position. After water control for a delay of Tb seconds, the pipe 900 is further lifted to the high position. The material receiving mechanism in the second cleaning tank 702 conveys the pipe 900 into the second cleaning tank 702. At the same time, the host computer transmits the batch number information of the pipe 900 to the second cleaning tank 702. The pipe 900 is rinsed in the second cleaning tank 702 for Tc seconds. When the cleaning is completed, if there is no pipe 900 in the third cleaning tank 703, the material receiving mechanism in the second cleaning tank 702 lifts the pipe 900 to the middle position for water control for Td seconds, and repeats this twice. Then the pipe 900 is conveyed to the third cleaning tank 703, and so on until the pipe 900 is cleaned in the fourth cleaning tank 704. After the fourth cleaning tank 704 finishes cleaning the pipe 900, it is determined whether there is a pipe 900 at the buffer station 800. If not, the pipe 900 is conveyed to the buffer station 800. If there is a pipe 900 at the buffer station 800: it is determined whether the pipe 900 at the buffer station 800 and the cleaned pipe 900 belong to the same batch through the batch number. If so, the cleaned pipe 900 is conveyed to the buffer station 800. If not, after the pipe 900 at the buffer station 800 is emptied, the cleaned pipe 900 is conveyed to the buffer station 800. Repeating such actions realizes a continuous working mode of cutting, grinding, and cleaning multiple batches of pipes 900 respectively, improving the processing efficiency of the pipes 900. Among them, the number of pipes to be cleaned and the cleaning time can be variable according to the length of the pipes 900.

[0062] Further, when an abnormality occurs in the fixed-length cutting mechanism 200, the grinding mechanism 400 or the cleaning mechanism 700, the emergency stop button is pressed, the conveying mechanism and the cleaning mechanism 700 stop operating, and the fixed-length cutting mechanism 200 and the grinding mechanism 400 return to the initial state. After the abnormality is handled, the emergency stop button is released, and the processing of this batch of pipes 900 continues, ensuring safety during processing.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for continuously processing pipes, characterized in that, It includes the following steps: Step S1: Determine whether the position of the fixed-length plate (201) of the fixed-length cutting mechanism (200) matches the length of the pipe to be processed (900). If not, the fixed-length plate (201) moves to a position corresponding to the pipe to be processed (900); if it matches, the clamping block (208) of the fixed-length cutting mechanism (200) clamps the pipe to be processed (900), and then the cutting wheel (206) of the fixed-length cutting mechanism (200) cuts the pipe to be processed (900); Step S2: The grinding clamping cylinder (415) of the grinding mechanism (400) clamps the cut pipe (900) through the cooperating rollers and the pipe (900) can rotate; Step S3: The inner grinding heads (412) of the inner grinding device are inserted into both ends of the pipe (900); Step S4: The fixed-end grinding device (410) further includes a roller motor (413). The output end of the roller motor (413) is connected to a roller (414). The outer wall of the roller (414) is in frictional contact with the outer wall of the pipe (900). The roller motor (413) and the inner grinding drive motor (411) of the grinding mechanism (400) drive the pipe (900) to rotate, and the rotation speed of the roller motor (413) is less than the rotation speed of the inner grinding drive motor (411), so that there is a rotational speed difference between the inner grinding head (412) and the pipe (900), realizing the grinding of the end of the pipe (900); Step S5: The second feeding device (416) of the grinding mechanism (400) drives the outer grinding device to fit with the outer wall of the pipe (900). The outer grinding device includes an outer grinding drive motor (417) and an outer grinding wheel (418). The outer grinding drive motor (417) drives the outer grinding wheel (418) to rotate, realizing the grinding of the outer wall of the pipe (900); Step S6: When the output torque of the second feeding device (416) reaches the set torque value, it means that the outer grinding device reaches the specified position. The outer grinding device stops feeding and grinds the pipe (900) with a time delay; Step S7: The cleaning mechanism (700) cleans the ground pipe (900).

2. The method for continuously processing pipes according to claim 1, characterized in that, The said Step S1 includes: The difference D between the length of the pipe to be processed (900) and the actual position of the fixed-length plate (201) is: D = L3 - {L2 - C ÷ [(A ÷ L1) × B]}, where, A - the number of pulses emitted by the servo motor per revolution; B - the gear ratio; C - the actual value of the servo motor encoder; L1 - the moving distance of the fixed-length plate (201) corresponding to one revolution of the servo motor, mm; L2 - the distance between the cutting wheel (206) and the zero point of the fixed-length plate (201), mm; L3 - the length of the pipe to be processed (900), mm; If the difference D is within the set range, it means that the current position of the fixed-length plate (201) matches the length of the pipe to be processed (900), and the fixed-length plate (201) does not need to move; If the difference D is not within the set range, it means that the current position of the fixed-length plate (201) does not match the length of the pipe to be processed (900), and the fixed-length plate (201) needs to move.

3. The method for continuously processing pipes according to claim 1, characterized in that, Between step S1 and step S2, there is also step S10: The number of cuts for a single pipe (900) is N: N = E × F ÷ L3; where E is the total length of the raw material in mm, F is the elongation rate after tooth rolling, and L3 is the length of the pipe (900) to be processed in mm.

4. The method for continuously processing a pipe according to claim 1, characterized in that, Between step S1 and step S2, there is also step S12: Determine whether there is a pipe (900) at the grinding station of the grinding mechanism (400). If not, the second conveying mechanism (300) conveys the cut pipe (900) to the grinding station; if there is a pipe (900) at the grinding station of the grinding mechanism (400), the second conveying mechanism (300) pauses.

5. The method for continuously processing a pipe according to claim 4, characterized in that, Between step S6 and step S7, there is also step S61. After grinding is completed, the third conveying mechanism conveys the pipe (900) to the storage station (600). Determine whether the number of pipes G at the storage station (600) is equal to the set number of pipes to be cleaned K. If G < K, the sizing cutting mechanism (200) continues to work; If G = K and there is no pipe (900) at the cleaning mechanism (700), the receiving mechanism conveys the pipe (900) to the cleaning mechanism (700).

6. The method for continuously processing pipes according to claim 1, characterized in that, There is also step S71: The cleaning mechanism (700) includes multiple cleaning tanks. After cleaning is completed, determine whether there is a pipe (900) at the buffer station (800). If so: Determine whether the pipe (900) at the buffer station (800) and the cleaned pipe (900) belong to the same batch. If so, convey the cleaned pipe (900) to the buffer station (800); if not, after emptying the pipe (900) at the buffer station (800), then convey the cleaned pipe (900) to the buffer station (800).

7. The method for continuously processing a pipe according to claim 3, characterized in that, After step S10, there is also step S11: When the number M of pipes (900) cut by the sizing cutting mechanism (200) is equal to the set number Y of pipes (900), then suspend the conveying and cutting of the pipes (900).

8. The method for continuously processing pipes according to claim 5, characterized in that, Between step 61 and step S7, there is also step S62, batch switching of the pipe (900). When the number J of pipes (900) ground by the grinding mechanism (400) is equal to the set number Y of pipes (900), and when the grinding station has conveyed the remaining pipes (900) to the cleaning mechanism (700), then send the grinding completion signal to the host computer, and the host computer executes the processing of the next batch of pipes (900).

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