Metal pipe cutting equipment with multi-pipe-diameter self-adaption function

Abstract

The invention discloses metal pipe cutting equipment with a multi-pipe-diameter self-adaption function, and relates to the technical field of cutting equipment. The cutting equipment comprises a cutting assembly and a placing assembly; the cutting assembly comprises detection assemblies, the detection assemblies are located on the two sides of the cutting tool respectively, the cutting tool is located at the top end of the pipe fitting, and the driving assembly is connected with the detection assemblies; the placing assembly comprises a positioning assembly, the positioning assembly is located at the bottom end of the pipe fitting, fixing assemblies are arranged on the two sides of the positioning assembly respectively, and the positioning assembly is connected with the fixing assemblies; the detection assembly is connected with the fixing assembly, the driving assembly is connected with the fixing assembly, and the driving assembly adjusts the cutter feeding pressure according to the detection assembly and the fixing assembly.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, specifically a metal pipe cutting device with multi-diameter adaptive function. Background Technology

[0002] In the current field of metal pipe cutting, most mainstream equipment is designed for fixed pipe diameter specifications. Its core structure includes three parts: a transport unit, a fixing mechanism, and a cutting component. The transport unit usually adopts a roller drive or conveyor belt structure to realize the linear transport of metal pipes. The fixing mechanism is mostly a manually adjustable clamp or a pneumatic clamping device, which requires manual preset of the clamping distance according to the diameter of the metal pipe. The cutting component uses a drive motor to drive the cutting blade to reciprocate, and a cylinder controls the blade feed to complete the cutting operation of the metal pipe.

[0003] Existing metal tube cutting equipment has significant limitations in practical applications. It has poor adaptability to multiple tube diameters. Traditional fixing mechanisms cannot automatically identify the diameter and wall thickness of metal tubes, requiring frequent manual adjustments to the clamp spacing and cutting parameters. This is not only cumbersome and time-consuming, but also prone to unstable clamping or reduced cutting accuracy due to human judgment errors. Especially in small-batch, multi-specification metal tube cutting scenarios, production efficiency is greatly reduced. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the device has poor adaptability to multiple pipe diameters, and requires frequent manual adjustment of clamp spacing and cutting parameters, which leads to cumbersome operation, low efficiency and easy accuracy problems. The invention provides a metal pipe cutting device with multi-diameter adaptive function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the cutting device includes a cutting component and a placement component; The cutting assembly includes a detection assembly, which is located on both sides of the cutting blade. The cutting blade is located at the top of the pipe. The drive assembly is connected to the detection assembly. The placement component includes a positioning component, which is located at the bottom of the pipe fitting. Fixing components are provided on both sides of the positioning component, and the positioning component is connected to the fixing components. The detection component is connected to the fixed component, and the drive component is connected to the fixed component. The drive component adjusts the tool feed pressure according to the detection component and the fixed component.

[0006] The cutting component is located at the top of the pipe fitting for cutting the metal pipe. The placement component is located at the bottom of the pipe fitting for placing and fixing the metal pipe. The detection component in the cutting component is used to monitor the working status of the cutting tool and control the operation of adjacent components, and adjust the working status of the cutting tool. A transport unit is provided on one side of the placement component. The transport unit is an existing structure used to transport the pipe fitting. The fixing component in the placement component is used to position, clamp and fix the metal pipe on the transport unit. The positioning component and the fixing component cooperate to achieve multi-diameter pipe fixing.

[0007] Furthermore, the detection component includes a stabilizer and a connecting block. One end of the stabilizer is provided with a connecting block, and the other end of the stabilizer is connected to the housing. Multiple pulleys are symmetrically arranged on both sides of the cutting blade. The fixed ends of the multiple pulleys are connected to the connecting block. A telescopic component is provided between adjacent pulleys. An elastic ring is sleeved on the outer wall of the telescopic component. A carrier substrate is provided between the elastic ring and the telescopic component. Resistor blocks and piezoelectric blocks are arranged alternately inside the carrier substrate. Several spray heads are provided inside the connecting block. The output ends of the several spray heads face the cutting blade.

[0008] The detection component is used to detect the working status of the cutting blade and make corresponding adjustments. The temperature and pressure applied by the cutting blade vary depending on the type of pipe fitting. For thicker pipe fittings, both the temperature and pressure differ. The stabilizing component and connecting block are used to fix the cutting blade itself, preventing it from shifting. Meanwhile, the pulleys on both sides of the cutting blade are rotating components, clamping and fixing the cutting blade. The cutting blade can also move back and forth for the cutting process. Multiple pulleys are provided, with telescopic components between adjacent pulleys. An elastic ring is fitted over the telescopic component, leaving a cavity between the elastic ring and the telescopic component. A carrier substrate is placed inside the cavity. The outer wall of the elastic ring contacts the cutting blade, and under the pressure of the cutting blade, it moves closer to the telescopic component. The inner wall of the telescopic component contacts the carrier substrate, which is a mounting component used to arrange the resistor block and piezoelectric block. During operation, when the cutting blade vibrates or deviates, the blade body squeezes the elastic ring, which in turn squeezes the piezoelectric block in the carrier substrate. The piezoelectric block, under pressure, generates a potential difference across its ends. The magnitude of this potential difference, along with the amplitude of the applied pressure, causes the directional movement of charges, forming an instantaneous induced current. The greater the pressure, the greater the current, and vice versa. The magnitude of the cutting blade's deviation during cutting is determined based on the current and pressure. During the cutting process, the elastic ring remains in continuous contact with the cutting blade, and the temperature of the cutting blade affects the elastic ring. Because the heat transfer path is significantly restricted, the energy input in the space exceeds the output, ultimately leading to heat accumulation and a temperature rise. Heat accumulates inside the cavity, which ultimately affects the resistive block. The resistive block is a metallic conductor; when heated, the higher the temperature, the higher the resistance, and vice versa. The temperature of the cutting blade is determined based on the resistance value.

[0009] Furthermore, each spray head is arranged at equal intervals, and each spray head is electrically connected to the carrier substrate.

[0010] The spray head is provided with several spray heads and is connected to an external cutting storage cylinder. It is used to spray cutting fluid onto the cutting tool. Multiple stabilizers are provided and located on both sides of the cutting tool's cut. The output of the spray head is controlled by the resistance value of the resistor block, so as to spray cutting fluid to cool down the tool when the local area of ​​the tool is at a high temperature.

[0011] Furthermore, the positioning component includes a advancing block and a moving part. The advancing block is located at the bottom end of the pipe fitting. A placement platform is provided at the bottom end of the advancing block. Slide grooves are respectively opened on both sides of the advancing block. The moving part is located in the slide groove of the advancing block. An inclined groove is opened on the side of the moving part facing the pipe fitting. A moving electrode plate is provided at the bottom end of the moving part. A fixed electrode plate is provided in the slide groove of the advancing block.

[0012] The positioning component is used to fix the metal tube on the placement table, improving the stability of the metal tube during cutting. The advancing block is located in the center of the placement table surface and is used to separate the tubes to prevent the outer walls of the tubes from contacting each other, which would cause wear between the tube surfaces during the fixing process. The advancing block has a groove on the side facing the tube, and the moving part is slidably connected to the inner wall of the groove. Because the moving part has an inclined groove on the side facing the tube, when the tube enters the placement table, the outer wall of the tube will contact the inclined groove of the moving part, generating a squeezing force on the moving part, forcing the moving part to move upward along the groove. The movement of the moving part will drive the moving plate to move, increasing the distance between the moving plate and the fixed plate, which will cause a change in the potential difference between the two plates. When the distance between the two plates increases, the potential difference increases, the capacitance decreases, and the tube diameter is larger. Conversely, when the distance between the two plates is small, the potential difference decreases, the capacitance increases, and the tube diameter is smaller.

[0013] Furthermore, the fixing component includes clamping blocks, which are symmetrically arranged on both sides of the metal tube. A pad is provided on the side of the clamping block facing the metal tube, and a drive electric cylinder is provided on one side of the clamping block. The fixed end of the drive electric cylinder is connected to the placement platform, and the output end of the drive electric cylinder is connected to the clamping block.

[0014] The drive electric cylinder serves as the power source to control the movement of the clamping blocks. The bottom end of each clamping block is slidably connected to the surface of the placement platform. Two clamping blocks are provided, located on either side of the advancing block, for fixing the pipe fitting. When fixing the pipe fitting, the drive electric cylinder controls the clamping blocks to move towards the advancing block, causing the clamping blocks to contact and push the pipe fitting towards the advancing block as well. Ultimately, the clamping blocks and the advancing block fix the pipe fitting. At this point, the moving component is located at the highest point of the adjacent pipe fitting. Pads within the clamping blocks prevent the pipe fitting from rotating during movement, which could cause wear on the outer wall. Then, the moving and fixed electrodes work with the drive motors respectively. The system controls the pushing distance of the drive cylinder. When the pipe is moved to the placement platform, one end of it will press against the moving part. Under the action of the pressing force, the moving part moves upward. This is the first signal. When the pipe is transported, the transport unit stops working. This is the second signal, and the drive cylinder starts to push. When the drive cylinder pushes the pipe towards the advancing block, the moving part will make a final movement. When it reaches the top, this is the third signal, and the drive motor stops working. The movement of the moving part is determined by the change in capacitance value. The approximate diameter of the pipe is determined by the minimum capacitance value.

[0015] Furthermore, the surface of the placement platform has a groove, and a protrusion is provided in the groove. The protrusion is slidably connected to the groove, and a rubber block is provided at the top of the protrusion. The surface of the rubber block is provided with a detection line.

[0016] When the drive cylinder pushes the clamping block to move, the bottom end of the clamping block contacts the bottom end of the protruding block, causing the protruding block to move upward under pressure. The movement of the protruding block drives the rubber block to move, bringing the rubber block into contact with the bottom end of the pipe. With the continuous movement of the clamping block, the pipe eventually squeezes the rubber block, raising the pipe to a certain height. At the same time, under the squeezing force of the pipe, the surface of the rubber block will deform, and the detection line within it will also bend. The detection line is electrically connected to an external power source. The heavier the pipe, the greater the bending of the detection line, and the greater the resistance value of the detection line. Conversely, the lighter the pipe, the smaller the bending of the detection line, and the resistance value of the detection line will tend to be constant. The wall thickness of the pipe is roughly judged by the resistance value of the detection line and the capacitance value of the two plates. When the pipe is heavy and the diameter is small, the wall is thick; when the pipe is heavy and the diameter is large, the wall is thin; when the pipe is light and the diameter is large, the wall is thin; when the pipe is light and the diameter is small, the wall is thick. The cutting efficiency is then controlled based on the detection results.

[0017] Furthermore, the drive assembly includes a drive cylinder, a drive motor, and a housing. The drive cylinder is located on one side of the placement platform. The fixed end of the drive cylinder is connected to the placement platform, and the output end of the drive cylinder is hinged to the housing. The bottom end of the housing is provided with the placement platform, and one end of the housing is rotatably connected to the placement platform. The housing contains a drive motor, the fixed end of the drive motor is connected to the housing, and the output end of the drive motor is connected to the cutting tool.

[0018] The drive cylinder serves as the power source to control the movement of the housing component. Since one end of the housing component is rotatably connected to the placement platform, the housing component will move in an arc shape when the drive cylinder is working. The movement of the housing component will drive the internal cutting blade to move, so that the cutting blade contacts or separates from the pipe. The drive motor serves as the power source to control the operation of the cutting blade, so that the cutting blade moves back and forth, and the cutting process is performed on the pipe through the saw teeth on the blade.

[0019] Furthermore, a transport unit for transporting pipe fittings is provided on one side of the placement platform.

[0020] A transport unit is provided on one side of the placement table. The transport unit moves the metal tube by rotating rollers, so that the metal tube is moved to the placement table of the cutting component.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the coordinated work of a positioning component and a fixing component, can accurately adapt to metal tubes of different diameters. In the positioning component, the outer wall of the metal tube presses against the moving part, causing the moving electrode plate to move. The diameter of the metal tube can be determined by the potential difference and capacitance change between the moving electrode plate and the fixed electrode plate. In the fixing component, while the driving electric cylinder pushes the clamping block to move, the resistance change of the detection line on the surface of the rubber block on the protrusion block can be used to determine the wall thickness of the metal tube by combining the electrode plate capacitance value, thereby determining the pushing distance of the driving electric cylinder. Stable positioning and fixing of metal tubes of different diameters and wall thicknesses can be completed without manual adjustment.

[0022] 2. The detection component of the cutting assembly of this invention can monitor the working status of the cutting tool in real time. When the cutting tool vibrates or deviates, the tool squeezes the elastic ring and then squeezes the piezoelectric block in the carrier substrate. The induced current generated by the piezoelectric block can promptly determine the tool deviation, which is convenient for timely adjustment and avoids the decrease in cutting accuracy due to tool deviation. At the same time, the heat generated by the cutting tool is transferred to the resistor block through the elastic ring. The temperature of the tool can be determined based on the resistance value of the resistor block. The spray head, which is electrically connected to the carrier substrate, can accurately spray cutting fluid according to the temperature, effectively controlling the tool temperature and preventing the cutting performance and service life from being affected by tool overheating.

[0023] 3. The progressive block in the positioning component of the present invention can separate the metal tube, avoiding wear caused by mutual contact between the outer walls of the metal tubes during the fixing process; the clamping block of the fixing component has a pad on the side facing the metal tube, which can prevent the outer wall of the metal tube from being worn due to rotation during the movement; in addition, the rubber block at the top of the protrusion contacts the metal tube, and the rubber material has a certain elasticity, which can play a buffering role when fixing the metal tube, further reducing damage to the surface of the metal tube. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the cutting component of the present invention; Figure 3 This is a schematic diagram of the detection component of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of part A in the middle section; Figure 5 This is a schematic diagram of the structure of the component placement in this invention; Figure 6 This is a schematic diagram of the positioning component of the present invention; Figure 7 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of section B in the middle; Figure 9 For the present invention Figure 7 Enlarged schematic diagram of part C in the middle.

[0025] In the diagram: 1. Cutting assembly; 11. Detection assembly; 111. Stabilizer; 112. Connecting block; 113. Pulley; 114. Telescopic component; 115. Elastic ring; 116. Carrier substrate; 119. Spray head; 12. Drive assembly; 121. Drive cylinder; 122. Drive motor; 123. Housing component; 13. Cutting blade; 2. Placement assembly; 21. Positioning assembly; 211. Progression block; 212. Moving component; 213. Moving electrode plate; 214. Fixed electrode plate; 22. Fixing assembly; 221. Clamping block; 223. Drive cylinder; 23. Placement stage; 231. Groove; 24. Protrusion block; 25. Rubber block; 26. Detection line; 27. Transport unit. Detailed Implementation

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example: Figures 1-9 As shown, the present invention provides a technical solution for a metal pipe cutting device with multi-diameter adaptive function. The cutting device includes a cutting component 1 and a placement component 2. The cutting assembly 1 includes a detection assembly 11, which is located on both sides of the cutting blade 13. The cutting blade 13 is located at the top of the pipe. The drive assembly 12 is connected to the detection assembly 11. The placement component 2 includes a positioning component 21, which is located at the bottom end of the pipe fitting. Fixing components 22 are respectively provided on both sides of the positioning component 21, and the positioning component 21 is connected to the fixing components 22. The detection component 11 is connected to the fixed component 22, and the drive component 12 is connected to the fixed component 22. The drive component 12 adjusts the tool feed pressure according to the detection component 11 and the fixed component 22.

[0028] Specifically, the cutting component 1 is located at the top of the pipe fitting for cutting the metal pipe, and the placement component 2 is located at the bottom of the pipe fitting for placing and fixing the metal pipe. The detection component 11 in the cutting component 1 is used to monitor the working status of the cutting tool and control the operation of adjacent components, and adjust the working status of the cutting tool. A transport unit 27 is provided on one side of the placement component 2. The transport unit 27 is an existing structure used to transport the pipe fitting. The fixing component 22 in the placement component 2 is used to position, clamp and fix the metal pipe on the transport unit 27. The positioning component 21 cooperates with the fixing component 22 to achieve fixation of multiple pipe diameters.

[0029] like Figure 3 , Figure 4 As shown, the detection component 11 includes a stabilizer 111 and a connecting block 112. One end of the stabilizer 111 is provided with the connecting block 112, and the other end of the stabilizer 111 is connected to the housing component 123. Multiple pulleys 113 are symmetrically arranged on both sides of the cutting blade 13. The fixed ends of the multiple pulleys 113 are connected to the connecting block 112. A telescopic component 114 is provided between adjacent pulleys 113. An elastic ring 115 is sleeved on the outer wall of the telescopic component 114. A carrier substrate 116 is provided between the elastic ring 115 and the telescopic component 114. Resistor blocks and piezoelectric blocks are arranged alternately in the carrier substrate 116. A number of spray heads 119 are provided in the connecting block 112. The output ends of the multiple spray heads 119 face the cutting blade 13.

[0030] Specifically, the detection component 11 is used to detect the working status of the cutting blade 13 and make corresponding adjustments. When dealing with different pipe fittings, the temperature generated by the cutting blade 13 and the pressure to be applied are different. For thicker pipe fittings, the temperature generated by the cutting blade 13 and the pressure to be applied are different. The stabilizing component 111 and the connecting block 112 are used to fix the cutting blade 13 itself to prevent the cutting blade 13 from shifting. At the same time, the pulleys 113 on both sides of the cutting blade 13 are rotating components to achieve clamping and fixing. The cutting blade 13 can move back and forth to perform the cutting process. Multiple pulleys 113 are provided, and telescopic members 114 are provided between adjacent pulleys 113. An elastic ring 115 is fitted over the telescopic member 114, and a cavity is left between the elastic ring 115 and the telescopic member 114. A carrier substrate 116 is placed inside the cavity. The outer wall of the elastic ring 115 contacts the cutting blade 13, and under the pressure of the cutting blade 13, it moves closer to the telescopic member 114. The inner wall of the telescopic member 114 contacts the carrier substrate 116, and the carrier substrate... The substrate 116 serves as a mounting component for arranging the resistive and piezoelectric blocks. During operation, when the cutting blade 13 vibrates or deviates, the blade body of the cutting blade 13 presses against the elastic ring 115, which in turn presses against the piezoelectric blocks in the substrate 116. Under pressure, a potential difference is generated across the piezoelectric blocks. The magnitude of this potential difference, along with the amplitude of the applied pressure, causes the directional movement of charges, forming an instantaneous induced current. The greater the pressure, the greater the current, and vice versa. The deviation of the cutting blade 13 during cutting is determined based on the current and pressure. The size is changed, and during the cutting process, the elastic ring 115 is in continuous contact with the cutting tool 13. The temperature of the cutting tool 13 will affect the elastic ring 115. Because the heat transfer path is greatly restricted, the energy input in the space is greater than the output, which eventually leads to heat accumulation and temperature rise. Heat will accumulate in the cavity, and the heat will eventually affect the resistor block. The resistor block is a metal conductor. When heated, the higher the temperature, the higher the resistance value, and vice versa. The temperature of the cutting tool 13 is judged based on the resistance value.

[0031] like Figure 3 , Figure 4 As shown, each spray head 119 is arranged at equal intervals, and each spray head 119 is electrically connected to the carrier substrate 116.

[0032] Specifically, there are several spray heads 119, and the spray heads 119 are connected to an external cutting storage cylinder for spraying cutting fluid onto the cutting tool 13. There are multiple stabilizers 111 located on both sides of the cutting edge of the cutting tool 13. The output of the spray head 119 is controlled by the resistance value of the resistor block, so as to spray cutting fluid to cool down the tool when the local part of the tool is at high temperature.

[0033] like Figure 7As shown, the positioning component 21 includes a advancing block 211 and a moving part 212. The advancing block 211 is located at the bottom end of the pipe fitting. A placement platform 23 is provided at the bottom end of the advancing block 211. Sliding grooves are respectively opened on both sides of the advancing block 211. The moving part 212 is located in the sliding groove of the advancing block 211. An inclined groove is opened on the side of the moving part 212 facing the pipe fitting. A moving electrode plate 213 is provided at the bottom end of the moving part 212. A fixed electrode plate 214 is provided in the sliding groove of the advancing block 211.

[0034] Specifically, the positioning component 21 is used to fix the metal tube on the placement table 23, improving the stability of the metal tube during cutting. The advancing block 211 is located in the center of the surface of the placement table 23, used to separate the tubes and prevent the outer walls of the tubes from contacting each other, which would cause wear between the tube surfaces during the fixing process. The advancing block 211 has a groove on the side facing the tube, and the moving part 212 is slidably connected to the inner wall of the groove. Because the moving part 212 has an inclined groove on the side facing the tube, when the tube enters the placement table 23, the outer wall of the tube... The wall surface will contact the inclined groove of the moving part 212, exerting a squeezing force on the moving part 212, forcing the moving part 212 to move upward along the groove. The movement of the moving part 212 will drive the moving electrode 213 to move, increasing the distance between the moving electrode 213 and the fixed electrode 214, causing a change in the potential difference between the two electrodes. When the distance between the two electrodes increases, the potential difference becomes larger, the capacitance value becomes smaller, and the diameter of the tube is larger. Conversely, when the distance difference between the two electrodes is smaller, the potential difference becomes smaller, the capacitance value becomes larger, and the diameter of the tube is smaller.

[0035] like Figure 5 , Figure 6 As shown, the fixing component 22 includes a clamping block 221, which is symmetrically arranged on both sides of the metal tube. A pad is provided on the side of the clamping block 221 facing the metal tube, and a drive cylinder 223 is provided on one side of the clamping block 221. The fixed end of the drive cylinder 223 is connected to the placement platform 23, and the output end of the drive cylinder 223 is connected to the clamping block 221.

[0036] Specifically, the drive cylinder 223 serves as a power source to control the movement of the clamping block 221. The bottom end of the clamping block 221 is slidably connected to the surface of the placement platform 23. Two clamping blocks 221 are provided, located on either side of the advancing block 211, for fixing the pipe fitting. When fixing the pipe fitting, the drive cylinder 223 controls the clamping block 221 to move towards the advancing block 211, causing the clamping block 221 to contact and push the pipe fitting to also move towards the advancing block 211. Ultimately, the clamping block 221 and the advancing block 211 fix the pipe fitting. At this time, the moving part 212 is located at the highest point of the adjacent pipe fitting. The pad in the clamping block 221 is used to prevent the pipe fitting from rotating during movement, which could cause wear on the outer wall. Then, the moving electrode plate 213 and the fixed electrode plate 214... Each component works in conjunction with the drive motor 122 to control the pushing distance of the drive cylinder 223. When the pipe moves onto the placement platform 23, one end of it will press against the moving part 212. Under the action of the pressing force, the moving part 212 moves upward, which is the first signal. When the pipe transportation is completed, the transportation unit 27 stops working, which is the second signal. The drive cylinder 223 starts to push. When the drive cylinder 223 pushes the pipe towards the advancing block 211, the moving part 212 will make a final movement. When it reaches the top, this is the third signal. The drive motor 122 stops working. The movement of the moving part 212 is determined by the change in capacitance value. The approximate diameter of the pipe is determined by the minimum capacitance value.

[0037] like Figure 8 As shown, a groove 231 is provided on the surface of the placement platform 23, and a protrusion 24 is provided in the groove 231. The protrusion 24 is slidably connected to the groove 231. A rubber block 25 is provided at the top of the protrusion 24, and a detection line 26 is provided on the surface of the rubber block 25.

[0038] Specifically, when the drive cylinder 223 pushes the clamping block 221 to move, the bottom end of the clamping block 221 contacts the bottom end of the protrusion 24, causing the protrusion 24 to move upward under pressure. The movement of the protrusion 24 drives the rubber block 25 to move, causing the rubber block 25 to contact the bottom end of the pipe. Under the continuous movement of the clamping block 221, the pipe will eventually squeeze the rubber block 25, causing the rubber block 25 to raise the pipe to a certain height. At the same time, under the squeezing force of the pipe, the surface of the rubber block 25 will deform, and the detection line 26 will also bend. The detection line 26 is electrically connected to the external power supply. Next, the heavier the pipe, the greater the bending of the detection line 26, and the greater the resistance value of the detection line 26. Conversely, the lighter the pipe, the smaller the bending of the detection line 26, and the resistance value of the detection line 26 tends to be constant. The wall thickness of the pipe can be roughly judged by the resistance value of the detection line 26 and the capacitance value of the two plates. When the pipe is heavy and the diameter is small, the pipe wall is thick; when the pipe is heavy and the diameter is large, the pipe wall is thin; when the pipe is light and the diameter is large, the pipe wall is thin; when the pipe is light and the diameter is small, the pipe wall is thick. The cutting efficiency can then be controlled based on the detection results.

[0039] like Figure 1 , Figure 2 , Figure 4 As shown, the drive assembly 12 includes a drive cylinder 121, a drive motor 122, and a housing 123. The drive cylinder 121 is located on one side of the placement platform 23. The fixed end of the drive cylinder 121 is connected to the placement platform 23, and the output end of the drive cylinder 121 is hinged to the housing 123. The placement platform 23 is provided at the bottom of the housing 123. One end of the housing 123 is rotatably connected to the placement platform 23. The drive motor 122 is provided inside the housing 123. The fixed end of the drive motor 122 is connected to the housing 123, and the output end of the drive motor 122 is connected to the cutting tool 13.

[0040] Specifically, the drive cylinder 121 serves as a power source to control the movement of the housing 123. Since one end of the housing 123 is rotatably connected to the placement platform 23, the housing 123 will move in an arc shape when the drive cylinder 121 is working. The movement of the housing 123 will drive the internal cutting blade 13 to move, causing the cutting blade 13 to contact or separate from the pipe. The drive motor 122 serves as a power source to control the operation of the cutting blade 13, causing the cutting blade 13 to move reciprocally, and the cutting process of the pipe is carried out by the saw teeth on the blade.

[0041] like Figure 1 , Figure 4 As shown, a transport unit 27 for transporting pipe fittings is provided on one side of the placement platform 23.

[0042] Specifically, a transport unit 27 is provided on one side of the placement table 23. The transport unit 27 moves the metal tube by rotating the roller, so that the metal tube is moved to the placement table 23 of the cutting component 1.

[0043] Working principle: First, the transport unit 27 on one side of the placement platform 23 transports the metal tube to the placement platform 23 via the rotation of the roller. After the metal tube enters the placement platform 23, its outer wall contacts the inclined groove of the moving part 212 in the slide groove of the advancing block 211 in the positioning assembly 21, generating a squeezing force on the moving part 212 to move it upward, driving the moving electrode plate 213 to move. The diameter of the metal tube is determined by the potential difference and capacitance value change between the moving electrode plate 213 and the fixed electrode plate 214. At the same time, the electric cylinder 223 pushes the clamping block of the fixing assembly 22. 221 moves towards the advancing block 211, the bottom end of the clamping block 221 contacts and pushes the protruding block 24 in the groove 231 of the placement platform 23 to move upward, so that the rubber block 25 at the top of the protruding block 24 contacts the bottom end of the metal tube. The metal tube squeezes the rubber block 25, causing the detection line 26 on its surface to bend. The resistance value of the detection line 26 and the capacitance value of the electrode plate are used to determine the wall thickness of the metal tube, thereby determining the pushing distance of the drive cylinder 223, realizing the positioning and fixing of metal tubes of different diameters. During cutting, the drive assembly 12 first receives the detection... The signal from the measuring component 11 and the fixing component 22 is detected, and then the drive cylinder 121 pushes the housing 123 to move in an arc shape, causing the cutting blade 13 to contact the metal tube. At the same time, the drive motor 122 starts, controlling the cutting blade 13 to reciprocate for cutting. During the cutting process, the detection component 11 of the cutting component 1 fixes the cutting blade 13 through the stabilizing component 111 and the connecting block 112. The pulleys 113 on both sides assist the movement of the cutting blade 13. The elastic ring 115 outside the telescopic component 114 between adjacent pulleys 113 is in contact with the cutting blade. When the cutting tool 13 contacts the substrate, it vibrates or deviates, squeezing the elastic ring 115. This causes the elastic ring 115 to squeeze the piezoelectric block in the carrier substrate 116. The induced current generated by the piezoelectric block determines the tool deviation. The heat generated by the cutting tool 13 is transferred to the resistive block in the carrier substrate 116 through the elastic ring 115. The resistance value of the resistive block determines the tool temperature. Then, the spray head 119, which is electrically connected to the carrier substrate 116, sprays cutting fluid according to the temperature, thus realizing dynamic monitoring and adjustment of the cutting process.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal pipe cutting device with multi-diameter adaptive function, characterized in that: The cutting device includes a cutting component (1) and a placement component (2); The cutting assembly (1) includes a detection assembly (11) and a driving assembly (12). The detection assembly (11) is located on both sides of the cutting blade (13). The cutting blade (13) is located at the top of the pipe. The driving assembly (12) is connected to the detection assembly (11). The placement component (2) includes a positioning component (21), which is located at the bottom end of the pipe fitting. Fixing components (22) are provided on both sides of the positioning component (21), and the positioning component (21) is connected to the fixing components (22). The fixing component (22) is connected to the detection component (11), and the driving component (12) is connected to the fixing component (22). The driving component (12) adjusts the tool feed pressure according to the detection component (11) and the fixing component (22).

2. The metal pipe cutting device with multi-diameter adaptive function according to claim 1, characterized in that: The detection component (11) includes a stabilizer (111) and a connecting block (112). The stabilizer (111) has a connecting block (112) at one end. The cutting blade (13) has multiple pulleys (113) symmetrically arranged on both sides. The fixed ends of the multiple pulleys (113) are connected to the connecting block (112). A telescopic component (114) is provided between adjacent pulleys (113). An elastic ring (115) is sleeved on the outer wall of the telescopic component (114). A carrier substrate (116) is provided between the elastic ring (115) and the telescopic component (114). A resistive block and a piezoelectric block are arranged alternately in the carrier substrate (116). A number of spray heads (119) are provided in the connecting block (112). The output ends of the multiple spray heads (119) face the cutting blade (13).

3. The metal pipe cutting device with multi-diameter adaptive function according to claim 2, characterized in that: Each of the spray heads (119) is arranged at equal intervals and each of the spray heads (119) is electrically connected to the carrier substrate (116).

4. A metal pipe cutting device with multi-diameter adaptive function according to claim 1, characterized in that: The positioning component (21) includes a progressive block (211) and a moving part (212). The progressive block (211) is located at the bottom end of the pipe fitting. The bottom end of the progressive block (211) is provided with a placement platform (23). Sliding grooves are respectively opened on both sides of the progressive block (211). The moving part (212) is located in the sliding groove of the progressive block (211). The side of the moving part (212) facing the pipe fitting is provided with an inclined groove. The bottom end of the moving part (212) is provided with a moving electrode plate (213). The sliding groove of the progressive block (211) is provided with a fixed electrode plate (214).

5. A metal pipe cutting device with multi-diameter adaptive function according to claim 1, characterized in that: The fixing component (22) includes a clamping block (221), which is symmetrically arranged on both sides of the metal tube. A pad is provided on the side of the clamping block (221) facing the metal tube. A drive cylinder (223) is provided on one side of the clamping block (221). The fixed end of the drive cylinder (223) is connected to the placement platform (23), and the output end of the drive cylinder (223) is connected to the clamping block (221).

6. A metal pipe cutting device with multi-diameter adaptive function according to claim 5, characterized in that: The surface of the placement platform (23) is provided with a groove (231), and a protrusion (24) is provided in the groove (231). The protrusion (24) is slidably connected to the groove (231). A rubber block (25) is provided at the top of the protrusion (24), and a detection line (26) is provided on the surface of the rubber block (25).

7. A metal pipe cutting device with multi-diameter adaptive function according to any one of claims 1 to 5, characterized in that: The drive assembly (12) includes a drive cylinder (121), a drive motor (122), and a housing (123). The drive cylinder (121) is located on one side of the placement platform (23). The fixed end of the drive cylinder (121) is connected to the placement platform (23). The output end of the drive cylinder (121) is hinged to the housing (123). The bottom end of the housing (123) is provided with the placement platform (23). One end of the housing (123) is rotatably connected to the placement platform (23). The housing (123) is provided with a drive motor (122). The fixed end of the drive motor (122) is connected to the housing (123). The output end of the drive motor (122) is connected to the cutting tool (13).

8. A metal pipe cutting device with multi-diameter adaptive function according to claim 7, characterized in that: The placement platform (23) has a transport unit (27) on one side for transporting pipe fittings.

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