Method for continuously processing pipe

Abstract

The invention relates to the technical field of pipe processing, and discloses a method for continuously processing pipes, which comprises the following steps: judging whether the position of a sizing plate is matched with the length of a pipe to be processed, limiting the length of the pipe by the sizing plate, and cutting the pipe by a cutting wheel; a polishing clamping air cylinder of the polishing mechanism clamps the cut pipe; inner polishing heads of the inner polishing device are inserted into two ends of the pipe; a carrier roller motor and an inner polishing driving motor of the polishing mechanism drive the pipe to rotate, and the rotating speed of the carrier roller motor is smaller than that of the inner polishing driving motor; a second feeding device of the polishing mechanism drives an outer polishing device to be attached to the outer wall of the pipe, and the outer wall of the pipe is polished; and when the output torque of the second feeding device reaches a set torque value, the outer polishing device stops feeding, and pipe polishing is delayed: the cleaning mechanism cleans the polished pipe. Multi-procedure continuous machining of pipe cutting, polishing and cleaning is achieved, and the pipe machining efficiency and quality are improved.

Description

Technical Field

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

[0002] In the prior art, cutting equipment is used to cut steel pipes, and the pipe ends will produce certain deformations and have a large number of burrs. Therefore, the steel pipes need to be transported to grinding equipment for grinding. During grinding, the grinding position is positioned by a cylinder, and an emery wheel is used to grind the pipe end. As the emery wheel wears, the grinding position needs to be adjusted manually, which is prone to inaccurate positioning and deviations, affecting the grinding effect and quality of the pipe ends. In addition, the existing grinding equipment can only grind a single type of pipe, and cannot achieve continuous processing of multiple types of pipes, which affects the processing efficiency of the pipes. When the pipes are processed in different steps, the pipes need to be transferred to different equipment for processing separately, and continuous processing of the pipes cannot be achieved, which affects the processing efficiency of the pipes. Summary of the invention

[0003] The invention aims at solving the existing technical problems and provides a method for continuously processing pipes.

[0004] The technical solution of the present invention to solve the above technical problem is as follows: A method for continuously processing a pipe comprises the following steps: Step S1: determining whether the position of the cut-to-length plate of the cut-to-length cutting mechanism matches the length of the pipe to be processed; if not, the cut-to-length plate is moved to a position corresponding to the pipe to be processed; if matched, the clamping block of the cut-to-length cutting mechanism clamps the pipe to be processed, and then the cutting wheel of the cut-to-length cutting mechanism cuts the pipe to be processed; Step S2: The grinding clamping cylinder of the grinding mechanism clamps the cut pipe; Step S3: inserting the inner grinding head of the inner grinding device into both ends of the pipe; 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 lower than the rotation speed of the inner grinding drive motor; Step S5: the second feeding device of the grinding mechanism drives the outer grinding device to fit the outer wall of the pipe to grind the outer wall of the pipe; Step S6: When the output torque of the second feeding device reaches the set torque value, the external grinding device stops feeding and delays grinding the pipe; Step S7: The cleaning mechanism cleans the polished pipe.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows: Preferably, step S1 includes: the difference between the length of the pipe to be processed and the actual position of the cut-to-size plate is D: D=L3-{L2-C÷[(A÷L1)×B]}, wherein A is the number of pulses emitted by the servo motor when it rotates one circle; B is the gear ratio; C is the actual value of the servo motor encoder; L1 is the moving distance of the cut-to-size plate corresponding to one circle of the servo motor, mm; L2 is the distance between the cutting wheel and the zero point of the cut-to-size plate, mm; L3 is the length of the pipe to be processed, mm.

[0006] If the difference D is within the set range, it means that the current position of the cut-to-length plate matches the length of the pipe to be processed, and the cut-to-length plate does not need to be moved; If the difference D is not within the set range, it means that the current position of the cut-to-length plate does not match the length of the pipe to be processed, and the cut-to-length plate needs to be moved.

[0007] Preferably, the moving distance of the fixed-length cutting mechanism is L: L=[(A÷L1)×B]×(L2-L3); Among them, A is the number of pulses emitted by the servo motor when it rotates one circle; B is the gear ratio; L1 is the moving distance of the cut-to-length plate corresponding to one circle of the servo motor, mm; L2 is the distance between the cutting wheel and the zero point of the cut-to-length plate, mm; L3 is the length of the pipe to be processed, mm.

[0008] Preferably, step S10 is further included between step S1 and step S2: the number of cutting times of a single pipe is N: N=E×F÷L3; wherein, E is the total pipe length of the raw material, mm; F ​​is the elongation after tooth rolling; and L3 is the length of the pipe to be processed, mm.

[0009] Preferably, step S12 is also included between step S1 and step S2: determining whether there are pipes at the grinding station of the grinding mechanism, and if not, the second conveying mechanism conveys the cut pipes to the grinding station; if there are pipes at the grinding station of the grinding mechanism, the second conveying mechanism suspends its action.

[0010] Preferably, step S61 is further included between step S6 and step S7, after polishing is completed, the third conveying mechanism conveys the pipe to the material storage station, and determines whether the number of pipes G at the material storage station is equal to the set number of cleaning pipes K. If G<K, the cut-to-length cutting mechanism continues to work; If G=K and there is no pipe at the cleaning mechanism, the receiving mechanism will transport the pipe to the cleaning mechanism.

[0011] Preferably, step S71 is also included: the cleaning mechanism includes multiple cleaning tanks. After cleaning is completed, it is determined whether there are pipes at the cache station. If so, it is determined whether the pipes at the cache station and the pipes after cleaning belong to the same batch. If so, the cleaned pipes are transported to the cache station; if not, the cleaned pipes are transported to the cache station after the pipes at the cache station are emptied.

[0012] Preferably, step S10 further includes step S11: when the number M of pipes cut by the cut-to-length cutting mechanism equals the set number Y of pipes, the conveying and cutting of the pipes are suspended.

[0013] Preferably, step S62 is also included between step S61 and step S7, pipe batch switching. When the number of pipes polished by the polishing mechanism J = the set number of pipes Y, and the polishing station has transported the remaining pipes to the cleaning mechanism, the polishing completion signal is transmitted to the host computer, and the host computer executes the processing of the next batch of pipes.

[0014] The beneficial effects of the present invention are: it meets the requirements of continuous processing of multiple steps of pipe transportation, cutting, grinding and cleaning and can realize automatic switching of pipe batches of different specifications, realize continuous processing of multiple batches of pipes, improve pipe processing efficiency, control the grinding feed amount through the feeding device, the control is accurate and no adjustment is required, accurate grinding of the pipe is achieved, the grinding quality of the pipe is improved, and an automatic cleaning process can be realized for the polished pipe, further improving the overall processing efficiency of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view schematic diagram of the cut-to-length mechanism, the grinding mechanism and the cleaning mechanism of the present invention; Figure 2 Schematic diagram of the cut-to-length mechanism and grinding mechanism of the present invention Figure 1 ; Figure 3 Schematic diagram of the cut-to-length mechanism and grinding mechanism of the present invention Figure 2 ; Figure 4 It is a schematic diagram of the cut-to-length mechanism of the present invention; Figure 5 is a schematic diagram of a fixed end grinding device of the present invention; Figure 6 It is a schematic diagram of the mobile end polishing device of the present invention; Figure 7 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle; Figure 8 It is a schematic diagram of the material receiving mechanism of the present invention.

[0016] Figure numerals: 100, first conveying mechanism; 200, fixed-length cutting mechanism; 201, fixed-length plate; 202, support frame; 203, fixed-length motor; 204, first feeding device; 205, cutting motor; 206, cutting wheel; 207, clamping cylinder; 208, clamping block; 300, second conveying mechanism; 301, ejecting frame; 302, ejecting cylinder; 303, guide plate; 400, grinding mechanism; 410, fixed-end grinding device; 411, inner grinding drive motor; 412, inner grinding head; 413, roller motor; 414, roller; 415, grinding clamping cylinder; 416, second feeding Feeding device; 417, external grinding drive motor; 418, external grinding wheel; 420, mobile end grinding device; 421, support plate; 422, frame; 423, rack; 500, pushing cylinder; 600, storage station; 601, blocking cylinder; 602, connecting rod one; 603, storage plate; 604, pin shaft; 700, cleaning mechanism; 701, first cleaning tank; 7011, receiving cylinder; 7012, connecting rod two; 7013, rotating shaft; 7014, receiving claw; 702, second cleaning tank; 703, third cleaning tank; 704, fourth cleaning tank; 800, cache station; 900, pipe. DETAILED DESCRIPTION

[0017] In order to enable the technical personnel in the technical field to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work should belong to the scope of protection 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-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The orientation or position relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, which is 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 of the present invention.

[0018] like Figures 1 to 8 As shown, the present invention discloses a method for continuously processing a pipe, comprising the following steps: Step S1: Setting parameters of the pipe to be processed such as the length of the pipe 900 and the number of cuts, the first conveying mechanism 100 conveys the pipe 900 to the cut-to-length mechanism 200, and judging whether the position of the cut-to-length mechanism 200 matches the length of the pipe to be processed 900. If not, the cut-to-length mechanism 200 moves to a position corresponding to the pipe to be processed 900. Specifically, the cut-to-length mechanism 200 includes a cut-to-length plate 201 and a cut-to-length motor 203. The cut-to-length plate 201 is mounted on a support plate 421 through a support frame 202. The support plate 421 is 21 is slidably mounted on the frame 422, the output end of the fixed-length motor 203 is provided with a gear through the support plate 421, and the frame 422 is provided with a corresponding rack 423, and the rack 423 is arranged along the length direction of the frame 422, that is, along the conveying direction of the pipe 900. By controlling the fixed-length motor 203 to work, 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, thereby ensuring the processing quality of the pipe 900. Figure 3 and Figure 6 As shown; Furthermore, a positioning groove is provided at the lower end of the cut-to-length plate 201 , and the positioning groove limits the pipe 900 , thereby preventing the pipe 900 from sliding and ensuring the cutting accuracy of the pipe 900 .

[0019] The difference between the length of the pipe 900 to be processed and the actual position of the cut-to-length plate 201 is D: D=L3-{L2-C÷[(A÷L1)×B]}, A-the number of pulses emitted by the servo motor when it rotates one circle; B-gear ratio; C-actual value of the servo motor encoder; L1-the moving distance of the cut-to-length plate 201 corresponding to one rotation of the servo motor, mm; L2-the distance between the cutting wheel 206 and the zero point of the cut-to-length plate 201, mm; L3-the length of the pipe 900 to be processed, mm. If the difference D is within the range of ±1mm, it means that the current position of the cut-to-length plate 201 matches the length of the pipe 900 to be processed, and the cut-to-length plate 201 does not need to move; If the difference D is not within the above range, it means that the current position of the cut-to-length plate 201 does not match the length of the pipe 900 to be processed, and the cut-to-length plate 201 needs to be moved.

[0020] The moving distance of the cut-to-size plate 201 is L: L=[(A÷L1)×B]×(L2-L3); wherein A is the number of pulses emitted by the servo motor when it rotates one circle; B is the gear ratio; L1 is the moving distance corresponding to one circle of the servo motor, mm; L2 is the distance between the cutting wheel 206 and the zero point of the cut-to-size plate 201, mm; and L3 is the length of the pipe 900 to be processed, mm.

[0021] If the position of the cut-to-length plate 201 matches the length of the pipe 900 to be processed, the cut-to-length cutting mechanism 200 clamps and cuts the pipe 900 to be processed, and records the number of times the pipe 900 is cut; Step S10: The number of cutting times of a single pipe 900 is N: N=E×F÷L3; wherein, E is the total length of the raw material, mm; F ​​is the elongation after tooth rolling; and L3 is the length of the pipe 900 to be processed, mm.

[0022] Reference Figure 4 As shown, specifically, the output end of the cutting motor 205 is connected to the cutting wheel 206, and the output end of the clamping cylinder 207 is connected to the clamping block 208. The clamping block 208 cooperates with the fixed block 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 grooves intersect and are connected to the arc grooves, and the height of the bottom wall of the rectangular groove is lower than the arc groove to ensure that the pipe 900 is cut. During operation, when the clamping cylinder 207 drives the clamping block 208 to move toward the fixed block, the pipe 900 to be cut is clamped, and the first feeding device 204 of the fixed-length cutting mechanism 200 drives the cutting motor 205 and the cutting wheel 206 to descend, and 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 higher. The first feeding device 204 can be a cylinder to drive the cutting motor 205 to rise and fall, thereby cutting the pipe 900.

[0023] Step S11: When the number M of the pipes 900 cut by the cut-to-length mechanism 200 equals the set number Y of the pipes 900, the first conveying mechanism 100 stops conveying and suspends cutting the pipes 900.

[0024] Step S12: The host computer determines 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 suspends its operation.

[0025] Reference Figure 3As shown, specifically, the second conveying mechanism 300 includes a material ejecting cylinder 302 and a material ejecting rack 301, the output end of the material ejecting cylinder 302 is connected to the material ejecting rack 301, and a plurality of material ejecting racks 301 are arranged at intervals along the length direction of the frame body 422 to ensure that the pipe 900 is stably lifted up, and a guide plate 303 is arranged between the second conveying mechanism 300 and the grinding mechanism 400, and the guide plate 303 is inclined toward the grinding mechanism 400, and the material ejecting rack 301 lifts the pipe 900 onto the guide plate 303, and the pipe 900 moves along the guide plate 303 to the grinding station, and the grinding station is provided with an intermediate support plate, and the intermediate support plate is provided with an intermediate support groove for accommodating the pipe 900; Reference Figure 3 , Figure 5 and Figure 6 As shown, step S2: the grinding mechanism 400 includes a fixed-end grinding device 410 arranged at one end of the frame 422 and a mobile-end grinding device 420 arranged at the other end of the frame 422, the mobile-end grinding device 420 is installed on the support plate 421, and when the fixed-length motor 203 is working, it drives the support plate 421 and the mobile-end grinding device 420 to move, and adjusts the distance between the fixed-end grinding device 410 and the mobile-end grinding device 420 to meet the use requirements of pipes 900 of different lengths. The other structures of the mobile-end grinding device 420 are the same as those of the fixed-end grinding device 410. The fixed-end grinding device 410 is taken as an example for description. The fixed-end grinding device 410 includes a grinding clamping cylinder 415, and the grinding clamping cylinder 415 clamps the cut pipe 900 through a matching roller, and the pipe 900 can rotate; Step S3: the fixed end grinding device 410 further includes an inner grinding drive motor 411, an inner grinding head 412 is installed at the output end of the inner grinding drive motor 411, and the inner grinding head 412 is inserted into the pipe 900; Step S4: the fixed end grinding device 410 also 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 tube 900, and the inner grinding drive motor 411 and the roller motor 413 drive the tube 900 to rotate when working, 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 rotation speed difference between the inner grinding head 412 and the tube 900, so as to achieve grinding of the end of the tube 900, specifically, the rotation speed difference between the inner grinding head 412 and the tube 900 is greater than or equal to 500rpm; 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 may be a cylinder. The second feeding device 416 drives the external grinding device to fit 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, thereby grinding 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 external grinding device has reached the specified position, and the external grinding device stops feeding, continues to perform delayed grinding on the pipe 900, and records the number J of the polished pipes 900; 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.

[0026] If the number J of polished tubes 900 is less than the set number Y of tubes 900, the first conveying mechanism 100 continues to convey the tubes 900. When the number J of polished tubes 900 = the set number Y of tubes 900, the first conveying mechanism 100 stops conveying the tubes 900 and switches to the next batch of tubes 900.

[0027] Step S61, after the delayed grinding time is reached, the grinding is completed, the grinding mechanism 400 returns to the initial position, and the third conveying mechanism conveys the pipe 900 to the storage station 600, that is, the third conveying mechanism includes a push cylinder 500, and the push cylinder 500 pushes the pipe 900 to move upward, so that the pipe 900 moves along the inclined surface of the middle support plate to the storage station 600; refer to Figure 7 As shown, the material storage station 600 includes a material blocking cylinder 601, and the output end of the material blocking cylinder 601 is hinged with a connecting rod 602, and the other end of the connecting rod 602 is fixedly connected to a pin shaft 604. A plurality of material storage plates 603 are evenly and 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 material storage plate 603 is L-shaped as a whole. When the material blocking cylinder 601 is working, the connecting rod 602 drives the pin shaft 604 to rotate, so that the upper end of the material storage plate 603 blocks the pipe 900 and releases it to the cleaning mechanism 700. The structure is simple and the operation is convenient.

[0028] The upper computer determines whether the cumulative number of tubes G at the material storage station 600 is equal to the set number of cleaning tubes K. If G < K, the cut-to-length cutting mechanism 200 and the grinding mechanism 400 continue to work; If G=K and there is no pipe 900 at the cleaning mechanism 700, the receiving mechanism will transport multiple pipes 900 of the same batch to the cleaning mechanism 700; Step S62, batch switching of pipes 900. When the number J of pipes 900 polished by the polishing mechanism 400 equals the set number Y of pipes 900, and the polishing station has transported the remaining pipes 900 to the cleaning mechanism 700, a polishing completion signal is transmitted to the host computer, and the host computer executes the processing of the next batch of pipes 900, thereby realizing automatic switching of different batches of pipes 900, realizing continuous processing of pipes 900, and improving the processing efficiency of pipes 900.

[0029] Step S7: The cleaning mechanism 700 cleans the polished pipe 900 .

[0030] Step S71: The cleaning mechanism 700 includes multiple cleaning tanks. In the present 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 which are sequentially arranged, wherein the first cleaning tank 701 performs ultrasonic cleaning on the pipe 900, and the second cleaning tank 702 to the fourth cleaning tank 704 perform rinses on the pipe 900. The four cleaning tanks are all equipped with material receiving mechanisms with the same structure. Taking the first cleaning tank 701 as an example, the material receiving mechanism includes a material receiving cylinder 7011, and the output end of the material receiving cylinder 7011 is connected to the second connecting rod 7012, and the other end of the second connecting rod 7012 is fixedly connected to the rotating shaft 7013. The rotating shaft 7013 is arranged along the length direction of the first cleaning tank 701, and a plurality of material receiving claws 7014 are installed on the rotating shaft 7013.

[0031] When in use, the material receiving claw 7014 of the material receiving mechanism moves to the material receiving position, the material blocking cylinder 601 drives the material storage plate 603 to flip, and flips the pipe 900 onto the material receiving claw 7014. The material receiving cylinder 7011 works, and drives the rotating shaft 7013 to rotate through the connecting rod 2 7012, so that the material receiving claw 7014 is located at a low position. At this time, the pipe 900 is located in the first cleaning tank 701 along the material receiving claw 7014 to reduce water splashing and ensure the cleanliness of the environment. The upper computer transmits the current batch number and cleaning information of the pipe 900 to the first cleaning tank 701, wherein the cleaning information includes the batch number, the number of pipes 900 corresponding to the batch, the length, the number of cleaning times and the ultrasonic cleaning time. After the pipe 900 is located in the first cleaning tank 701, the ultrasonic cleaning mechanism is triggered. The ultrasonic cleaning mechanism adopts the existing technology. The ultrasonic cleaning mechanism divides the cleaning time into Ta minutes according to the pipe length. After the pipe 900 completes ultrasonic cleaning in the first cleaning tank 701, the ultrasonic mechanism is turned off.

[0032] The upper computer determines whether there is a pipe 900 in the second cleaning tank 702. If there is no pipe 900, the receiving mechanism in the second cleaning tank 702 rises to the receiving position, and the receiving cylinder 7011 in the first cleaning tank 701 drives the receiving claw 7014 to rise to a certain height to the middle position and stop. After the water control delay Tb seconds, the pipe 900 continues to be lifted to the high position, and the receiving mechanism in the second cleaning tank 702 transports the pipe 900 to the second cleaning tank 702. At this time, the host computer transmits the batch number information of the pipe 900 to the second cleaning tank 702, and 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 will lift the pipe 900 to the middle position and control the water for Td seconds, repeating twice, and then transport the pipe 900 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 completes the cleaning of the pipe 900, it is determined whether there is a pipe 900 at the buffer station 800. If not, the pipe 900 is transported to the buffer station 800; if there is a pipe 900 at the buffer station 800, the batch number is used to determine whether the pipe 900 at the buffer station 800 and the cleaned pipe 900 belong to the same batch. If so, the cleaned pipe 900 is transported to the buffer station 800; if not, the cleaned pipe 900 is transported to the buffer station 800 after the pipe 900 at the buffer station 800 is emptied. Such repeated actions realize a continuous working mode of cutting, grinding, and cleaning multiple batches of pipes 900, thereby improving the processing efficiency of the pipe 900. Among them, the number of cleaning pipes and the cleaning time can be changed according to the length of the pipe 900.

[0033] Furthermore, when an abnormality occurs in the cut-to-length 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 are suspended, and the cut-to-length mechanism 200 and the grinding mechanism 400 are restored to their initial states. After the abnormality is handled, the emergency stop button is released and the processing of the batch of pipes 900 is continued to ensure safety during processing.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for continuously processing a pipe, characterized in that: The following steps are involved: Step S1: determining whether the position of the cut-to-length plate (201) of the cut-to-length cutting mechanism (200) matches the length of the pipe (900) to be processed; if not, the cut-to-length plate (201) is moved to a position corresponding to the pipe (900) to be processed; if matching, the clamping block (208) of the cut-to-length cutting mechanism (200) clamps the pipe (900) to be processed, and then the cutting wheel (206) of the cut-to-length cutting mechanism (200) cuts the pipe (900) to be processed; Step S2: The grinding clamping cylinder (415) of the grinding mechanism (400) clamps the cut pipe (900); Step S3: inserting the internal grinding head (412) of the internal grinding device into both ends of the pipe (900); Step S4: the roller motor (413) and the internal 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 lower than the rotation speed of the internal grinding drive motor (411); Step S5: the second feeding device (416) of the grinding mechanism (400) drives the external grinding device to fit the outer wall of the tube (900) to grind the outer wall of the tube (900); Step S6: when the output torque of the second feeding device (416) reaches a set torque value, the external grinding device stops feeding and grinds the pipe with a delayed time (900); Step S7: The cleaning mechanism (700) cleans the polished pipe (900).

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

3. The method for continuously processing a pipe according to claim 1 or 2, characterized in that: The moving distance of the cut-to-length plate (201) is L: L=[(A÷L1)×B]×(L2-L3); Wherein, A is the number of pulses emitted by the servo motor when it rotates one circle; B is the gear ratio; L1 is the moving distance of the cut-to-length plate (201) corresponding to one circle of the servo motor, mm; L2 is the distance between the cutting wheel (206) and the zero point of the cut-to-length plate (201), mm; L3 is the length of the pipe (900) to be processed, mm.

4. The method for continuously processing a pipe according to claim 1, characterized in that: The method further includes step S10 between step S1 and step S2: the number of cutting times of a single pipe (900) is N: N=E×F÷L3; wherein, E is the total pipe length of the raw material, mm; F ​​is the elongation after tooth rolling; and L3 is the length of the pipe (900) to be processed, mm.

5. The method for continuously processing a pipe according to claim 1, characterized in that: Also included between step S1 and step S2 is step S12: determining 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.

6. The method for continuously processing a pipe according to claim 5, characterized in that: Also included between step S6 and step S7 is step S61, after polishing is completed, the third conveying mechanism conveys the pipe (900) to the material storage station (600), and determines whether the number of pipes G at the material storage station (600) is equal to the set number of cleaning pipes K, and if G is less than K, the cut-to-length mechanism (200) continues to work; If G=K and there is no pipe (900) at the cleaning mechanism (700), the material receiving mechanism transports the pipe (900) to the cleaning mechanism (700).

7. The method for continuously processing a pipe according to claim 1, characterized in that: It also includes step S71: the cleaning mechanism (700) includes a plurality of cleaning tanks. After cleaning is completed, it is determined whether there are pipes (900) at the cache station (800). If so, it is determined whether the pipes (900) at the cache station (800) and the pipes (900) after cleaning are from the same batch. If so, the pipes (900) after cleaning are transported to the cache station (800). If not, the pipes (900) at the cache station (800) are emptied before the pipes (900) after cleaning are transported to the cache station (800).

8. The method for continuously processing a pipe according to claim 4, characterized in that: The step S10 also includes a step S11: when the number M of pipes (900) cut by the cut-to-length cutting mechanism (200) equals the set number Y of pipes (900), the conveying and cutting of the pipes (900) are suspended.

9. The method for continuously processing a pipe according to claim 6, characterized in that: Also included between step S61 and step S7 is step S62, batch switching of the pipes (900). When the number J of pipes (900) polished by the polishing mechanism (400) equals the set number Y of pipes (900), and the polishing station has transported the remaining pipes (900) to the cleaning mechanism (700), a polishing completion signal is transmitted to the host computer, and the host computer executes the processing of the next batch of pipes (900).

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