An intelligent pipe fixed-length cutting device and method for automobile parts processing

Abstract

The present invention relates to an intelligent pipe fixed-length cutting device for automobile parts processing, which includes a bearing table, heavy-duty driving guide rails, a sliding table, a cutting mechanism, a positioning fixture, a pipe winding and unwinding mechanism and a driving circuit. There are two heavy-duty driving guide rails on the bearing table, and the heavy-duty driving guide rails are respectively slidably connected with at least one sliding table. One of the sliding tables is connected with the cutting mechanism, and the other sliding table is connected with the positioning fixture. There are two pipe winding and unwinding mechanisms, which are symmetrically distributed outside the front end face and the rear end face of the bearing table and are connected with the outer side face of the bearing table. The driving circuit is located inside the bearing table. Its cutting method includes four steps such as equipment pretreatment, cutting adjustment and cutting operation. On the one hand, the present invention can effectively meet the needs of pipe cutting operations of various materials, pipe diameters and structural types; on the other hand, the cutting operation has high control precision, and can effectively improve the stability of pipe cutting and shaping quality, processing precision and work efficiency.

Description

Technical Field

[0001] The present invention relates to a pipe fixed-length intelligent cutting device and a cutting method for automobile parts processing, belonging to the technical field of machining. Background Art

[0002] At present, in automobile production, pipe cutting operations of various materials, pipe diameters and structures such as cemented carbide, rubber, and plastic are often involved. When performing such pipe cutting operations currently, traditional cutting equipment such as sawing machines and pipe cutting machines is often used. Although it can meet the needs of production and processing, in production, in order to meet the needs of pipe processing operations of different structural types, a variety of cutting equipment of different structural types often needs to be equipped to meet the production needs. And because pipes often have a certain elastic deformation ability, during cutting, the pipes are easily affected by the driving force of the conveying equipment, the pressure when the cutting tool cuts, the cutting angle and direction, and the auxiliary positioning operation of the staff, resulting in a large error in the cutting length.

[0003] In response to this problem, although a variety of high-precision cutting equipment has been developed currently, these equipment generally have defects such as complex structures, high purchase, operation and maintenance costs, and still cannot effectively meet the needs of pipe cutting operations of various structures and materials at the same time.

[0004] Therefore, in response to this problem, there is an urgent need to develop a pipe fixed-length intelligent cutting device and method for automobile parts processing to meet the actual work needs. Summary of the Invention

[0005] In order to solve the deficiencies in the prior art, the present invention has high integration, modularization and automation. On the one hand, it can effectively meet the needs of pipe cutting operations of various materials, pipe diameters and structural types, thereby effectively improving the flexibility and reliability of cutting operations; on the other hand, the cutting operation control accuracy is high, which can effectively improve the stability of pipe cutting and shaping quality, processing accuracy and work efficiency.

[0006] In order to achieve the above object, the present invention is realized through the following technical solutions:

[0007] An intelligent pipe fixed-length cutting device for automobile parts processing, comprising a bearing platform, heavy-duty driving guide rails, a sliding table, a cutting mechanism, a positioning fixture, a pipe winding and unwinding mechanism and a driving circuit. The bearing platform is a frame structure with a rectangular cross-section, and its axis is parallel to the horizontal plane. Two mutually parallel heavy-duty driving guide rails are arranged on the bearing platform, and the two heavy-duty driving guide rails are symmetrically distributed on both sides of the axis of the bearing platform and are parallel to the axis of the bearing platform. The heavy-duty driving guide rails are respectively slidably connected with at least one sliding table. Among them, the sliding table located at the rear side of the bearing platform is connected with the cutting mechanism, and the sliding table located at the front side of the bearing platform is connected with the positioning fixture. Moreover, the cutting mechanism and the positioning fixture are slidably connected with the upper end surface of the bearing platform through the heavy-duty driving guide rails and the sliding table. There are two pipe winding and unwinding mechanisms, which are symmetrically distributed outside the front end surface and the rear end surface of the bearing platform and are connected with the outer side surface of the bearing platform. The driving circuit is located inside the bearing platform and is electrically connected with the heavy-duty driving guide rails, the cutting mechanism, the positioning fixture and the pipe winding and unwinding mechanism respectively.

[0008] Further, the cutting mechanism includes a turntable mechanism, a robotic arm, a cutting motor, a circular knife, an electromagnetic induction coil and a tool holder. The lower end surface of the robotic arm is hinged to the upper end surface of an adjustment table through the turntable mechanism. The front end surface of the robotic arm is hinged to a tool holder through the turntable mechanism. The tool holder is a circular cavity structure. The circular knife is embedded in the tool holder, and the circular knife and the tool holder are coaxially distributed. Moreover, the diameter of the tool holder is 30% - 60% of the diameter of the circular knife. The circular knife is connected to the cutting motor through a transmission shaft and is coaxially distributed. And the magnetic induction coil is embedded in the tool holder, with at least two and symmetrically distributed on both sides of the circular knife. At the same time, the two electromagnetic induction coils are annular structures coaxial with the circular knife and are respectively connected to the inner side surfaces of the tool holder on both sides of the circular knife. At the same time, the distance between the circular knife and the electromagnetic induction coil is 1 - 10 millimeters. The turntable mechanism, the robotic arm, the cutting motor, the electromagnetic induction coil and the tool holder are all electrically connected to the driving circuit.

[0009] Further, the cutter head frame includes a cutter head, a positioning frame, a lifting drive mechanism, a pressure sensor, a temperature sensor, a laser rangefinder, and an inclination sensor. The positioning frame is a frame structure with an "H"-shaped cross-section. The groove on its rear end face is hinged to the front end face of the robotic arm through a turntable mechanism and can rotate within a range of 0° to 360°. The cutter head is embedded in the groove on the front end face of the positioning frame and is slidably connected to the inner side face of the positioning frame through the lifting drive mechanism. The axis of the lifting drive mechanism is parallel to the axis of the positioning frame. The cutter head includes a left disk and a right disk. Both the left disk and the right disk are disk structures with a "U"-shaped cross-section. The left disk and the right disk are connected by a transmission shaft and are coaxially distributed. The circular cutter is located between the left disk and the right disk and is connected to the transmission shaft. At the same time, the electromagnetic induction coils are respectively connected to the inner side faces of the left disk and the right disk through hard heat-resistant insulating blocks. The temperature sensor and the laser rangefinder are both embedded at the lower end face of the cutter head. The detection axis of the laser rangefinder is parallel to the axis of the positioning frame, perpendicular to and intersecting with the axis of the circular cutter. There are two pressure sensors, which are respectively located at the connection positions between the left disk and the right disk of the cutter head and the lifting drive mechanism. The inclination sensor is connected to the outer side face of the positioning frame. The lifting drive mechanism, the pressure sensor, the temperature sensor, the laser rangefinder, and the inclination sensor are all electrically connected to the drive circuit.

[0010] Furthermore, the positioning fixture includes an adjusting platform, a telescopic drive rod, an electric positioning fixture, a turntable mechanism, an air-drawing fan, an air guide pipe, an inclination sensor, a tension sensor, and a horizontal telescopic column, wherein the adjusting platform is a cavity structure with a rectangular cross-section, a backflow port is arranged on its front end face, and the axis of the backflow port is perpendicular to the axis of the bearing platform, the air-drawing fan is embedded in the adjusting platform and is coaxially arranged with the backflow port, an exhaust port is arranged on the rear end face of the adjusting platform, and is connected to the air guide pipe through the exhaust port, there are two horizontal telescopic columns, which are connected to the upper end face of the adjusting platform and are coaxially arranged, and the axes of the two horizontal telescopic columns are parallel to the axis of the bearing platform, the front end face of the horizontal telescopic column is located outside the side surface of the adjusting platform and is connected to a turntable mechanism, the turntable mechanism is coaxially arranged with the horizontal telescopic column, and is connected to the rear end face of a telescopic drive rod, and the axis of the telescopic drive rod is parallel to the axis of the telescopic drive rod The electric positioning fixture is coaxially distributed, and the electric positioning fixture is rotated 0° to 360° around the axis of the telescopic driving rod through the turntable mechanism. At the same time, an inclination sensor is arranged on the outer side of the electric positioning fixture, and the tension sensor is connected to the upper end surface of the adjustment table and is located at the center of the adjustment table. At the same time, the tension sensor connecting section is respectively connected to the telescopic driving rod through a spring, and the spring is coaxially distributed with the tension sensor and is perpendicular to the axis of the telescopic driving rod. The telescopic driving rod, the electric positioning fixture, the turntable mechanism, the drainage fan, the inclination sensor, the tension sensor, and the horizontal telescopic column are all electrically connected to the driving circuit.

[0011] Furthermore, the telescopic driving rod and the horizontal telescopic column are both at least two-stage electric telescopic rod structures.

[0012] Furthermore, a guide groove is provided on the front end face and the rear end face of the supporting platform corresponding to the pipe retracting and releasing mechanism, and the guide groove has a "凵"-shaped cross section and is distributed perpendicular to the axis of the supporting platform. The pipe retracting and releasing mechanism is embedded in the guide groove and connected to the supporting platform through the guide groove.

[0013] Furthermore, the pipe retracting and releasing mechanism includes a guide slide rail, a lifting drive mechanism, a carrying tray, a winder, a constant torque motor, a swing arm and a torque sensor, wherein there are two guide slide rails, which are symmetrically distributed on the inner side of the guide groove and parallel to the axis of the guide groove. The carrying tray is a plate-like structure with a rectangular cross-section, and its side surface is slidably connected to the guide slide rail through a lifting drive mechanism, and the lifting drive mechanism is embedded in the guide slide rail. The upper end surface of the carrying tray is parallel to the upper end surface of the carrying platform, and a winder is provided. The axis of the winder is perpendicularly distributed and intersects with the axis of the carrying platform, and is hinged to the upper end surface of the carrying tray through 1 to 2 swing arms. The axis of the swing arm forms an angle of 0° to 90° with the upper end surface of the carrying tray, and its lower end surface is hinged to the upper end surface of the carrying tray through a constant torque motor. At the same time, a torque sensor is provided at the constant torque motor, and the lifting drive mechanism, winder, constant torque motor and torque sensor are all electrically connected to the drive circuit.

[0014] Furthermore, the driving circuit is a circuit system based on a programmable controller, and is also provided with any one or several common control interfaces including but not limited to a display, a button, and a potentiometer.

[0015] A cutting method of a pipe fixed-length intelligent cutting device for automobile parts processing, comprising the following steps:

[0016] S1, equipment pretreatment, firstly, the pipe equipment to be cut is assisted in carrying and positioning by the pipe retracting and releasing mechanism on one side of the carrying platform, and at the same time, the cutting mechanism is driven to pre-operate and standby according to the pipe material to be cut;

[0017] S2, cutting adjustment, first the driving pipe retracting and releasing mechanism at the front end of the carrier platform is operated, driving the pipe to be cut to run at a uniform speed along the axis of the carrier platform toward the rear end of the carrier platform, and the pipe retracting and releasing mechanism at the rear end of the carrier platform receives the pipe; then the heavy-duty driving guide rail is driven to operate, and the heavy-duty driving guide rail adjusts the working position of the cutting mechanism and the positioning fixture through the slider, and then the positioning fixture clamps the pipe and positions it, and adjusts the local pipe distribution direction and structure at the pipe cutting part, thereby adjusting the cutting angle;

[0018] S3. Cutting operation: After locally clamping and positioning the pipeline, drive the cutting mechanism to operate. On the one hand, adjust the working height and angle of the cutter head frame in the cutting mechanism; on the other hand, adjust the rotation speed and temperature of the circular cutter. After the cutting mechanism reaches the set parameters, the cutting mechanism cuts the pipeline. After the cutting operation is completed, the circular cutter of the cutting mechanism resets with the cutter head frame. At the same time, the positioning fixture releases a section of the pipeline after the cutting operation, and it is collected by the pipeline handling mechanism at the rear end of the carrier table. Then, the positioning fixture releases the pipeline to be cut, and the pipeline handling mechanism at the front end of the carrier table drives the pipeline to continue to be conveyed, and the pipeline handling mechanism at the rear end of the carrier table is used for auxiliary clamping and positioning again, and then it can return to step S2 for subsequent cutting operations.

[0019] Compared with the prior art, the present invention has high integration, modularization and automation. On the one hand, it can effectively meet the needs of cutting operations for various types of pipelines with different materials, pipe diameters and structural types, thus effectively improving the flexibility and reliability of cutting operations. On the other hand, the cutting operation has high control precision, which can effectively improve the stability of pipeline cutting and shaping quality, processing precision and working efficiency. Brief Description of the Drawings

[0020] The present invention will be described in detail below with reference to the drawings and specific embodiments;

[0021] Figure 1 It is a partial top view structural schematic diagram of the present invention;

[0022] Figure 2 It is a partial side view structural schematic diagram of the cutting mechanism;

[0023] Figure 3 It is a partial top view structural schematic diagram of the cutter head frame;

[0024] Figure 4 It is a partial sectional view structural schematic diagram of the adjustment table.

[0025] Description of reference numerals: 1, bearing platform; 2, heavy-duty drive guide rail; 3, sliding table; 4, cutting mechanism; 5, positioning fixture; 6, pipe winding and unwinding mechanism; 7, drive circuit; 41, turntable mechanism; 42, robotic arm; 43, cutting motor; 44, circular knife; 45, electromagnetic induction coil; 46, cutter head holder; 461, cutter head; 462, positioning frame; 463, lifting drive mechanism; 464, pressure sensor; 465, temperature sensor; 466, laser rangefinder; 467, inclination sensor; 51, adjustment table; 52, telescopic drive rod; 53, electric positioning fixture; 54, spring; 55, drainage fan; 56, diversion pipe; 467, inclination sensor; 57, tension sensor; 58, horizontal telescopic column; 59, return port; 50, exhaust port; 61, guiding slide rail; 463, lifting drive mechanism; 62, carrying tray; 63, winder; 64, constant torque motor; 65, swing arm; 66, torque sensor. Detailed implementation manners

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to implement, the present invention will be further described below in conjunction with specific implementation manners.

[0027] As Figures 1-4 shown, a pipe fixed-length intelligent cutting device for automobile parts processing includes a bearing platform 1, a heavy-duty drive guide rail 2, a sliding table 3, a cutting mechanism 4, a positioning fixture 5, a pipe winding and unwinding mechanism 6 and a drive circuit 7. The bearing platform 1 is a frame structure with a rectangular cross-section, and its axis is parallel to the horizontal plane. Two mutually parallel heavy-duty drive guide rails are provided on the bearing platform 1, and the two heavy-duty drive guide rails 2 are symmetrically distributed on both sides of the axis of the bearing platform 1 and are parallel to the axis of the bearing platform 1. At least one sliding table 3 is slidably connected to each of the heavy-duty drive guide rails 2. Among them, the sliding table 3 located at the rear side of the bearing platform 1 is connected to the cutting mechanism 4, and the sliding table 3 located at the front side of the bearing platform 1 is connected to the positioning fixture 5. Moreover, the cutting mechanism 4 and the positioning fixture 5 are slidably connected to the upper end surface of the bearing platform 1 through the heavy-duty drive guide rails 2 and the sliding table 3. There are two pipe winding and unwinding mechanisms 6, which are symmetrically distributed outside the front end surface and the rear end surface of the bearing platform 1 and are connected to the outer side surface of the bearing platform 1. The drive circuit 7 is located inside the bearing platform 1 and is electrically connected to the heavy-duty drive guide rails 2, the cutting mechanism 4, the positioning fixture 5 and the pipe winding and unwinding mechanism 6 respectively.

[0028] It should be emphasized that the cutting mechanism 4 includes a turntable mechanism 41, a robotic arm 42, a cutting motor 43, a circular knife 44, an electromagnetic induction coil 45, and a cutter head holder 46. The lower end surface of the robotic arm 42 is hinged to the upper end surface of the sliding table 3 through the turntable mechanism 41. The front end surface of the robotic arm 42 is hinged to a cutter head holder 46 through the turntable mechanism 41. The cutter head holder 46 is a circular cavity structure. The circular knife 44 is embedded in the cutter head holder 46 and is coaxially distributed with the cutter head holder 46. The diameter of the cutter head holder 46 is 30% - 60% of the diameter of the circular knife 44. The circular knife 44 is connected to the cutting motor 43 through a transmission shaft and is coaxially distributed. The magnetic induction coil 45 is embedded in the cutter head holder 46, with at least two and symmetrically distributed on both sides of the circular knife 44. At the same time, the two electromagnetic induction coils 45 are annular structures coaxially distributed with the circular knife 44 and are respectively connected to the inner side surfaces of the cutter head holder 46 on both sides of the circular knife 44. At the same time, the distance between the circular knife 44 and the electromagnetic induction coil 45 is 1 - 10 millimeters. The turntable mechanism 41, the robotic arm 42, the cutting motor 43, the electromagnetic induction coil 45, and the cutter head holder 46 are all electrically connected to the drive circuit 7. At the same time, the cutting motor 43 is connected to the cutter head holder 46.

[0029] The provided circular knife can directly perform cutting operations on the pipeline under the drive of the cutting motor, thus meeting the need for cutting operations on hard pipelines;

[0030] The provided electromagnetic induction coil can perform magnetic induction heating on the circular knife. By increasing the temperature of the circular knife, the need for cutting operations on pipelines made of heat-meltable materials such as plastics can be achieved;

[0031] The provided robotic arm can flexibly meet the need for production operations at different cutting angles, thus flexibly meeting the need for cutting operations under various complex processing conditions.

[0032] Specifically, the cutter head frame 46 includes a cutter head 461, a positioning frame 462, a lifting drive mechanism 463, a pressure sensor 464, a temperature sensor 465, a laser rangefinder 466, and an inclination sensor 467. The positioning frame 462 has a cross-section in the shape of an "H" - shaped frame structure. The groove on its rear end face is hinged to the front end face of the robotic arm 42 through a turntable mechanism 41 and can rotate within the range of 0° to 360°. The cutter head 461 is embedded in the groove on the front end face of the positioning frame 462 and is slidably connected to the inner side face of the positioning frame 462 through the lifting drive mechanism 463. And the axis of the lifting drive mechanism 463 is parallel to the axis of the positioning frame 462. The cutter head 461 includes a left disk 4611 and a right disk 4612. Both the left disk 4611 and the right disk 4612 are disk structures with a cross-section in the shape of a "U". The left disk 4611 and the right disk 4612 are connected by a transmission shaft and are coaxially distributed. The circular cutter 44 is located between the left disk 4611 and the right disk 4612 and is connected to the transmission shaft. At the same time, the electromagnetic induction coil 45 is connected to the inner side faces of the left disk 4611 and the right disk 4612 respectively through hard heat-resistant insulating blocks. The temperature sensor 465 and the laser rangefinder 466 are both embedded in the lower end face of the cutter head 461. And the detection axis of the laser rangefinder 466 is parallel to the axis of the positioning frame 462, and is perpendicular to and intersects the axis of the circular cutter 44. There are two pressure sensors 464, which are respectively located at the connection positions between the left disk 4611 and the right disk 4612 of the cutter head 461 and the lifting drive mechanism 463. The inclination sensor 467 is connected to the outer side face of the positioning frame 462. And the lifting drive mechanism 463, the pressure sensor 464, the temperature sensor 465, the laser rangefinder 466, and the inclination sensor 467 are all electrically connected to the drive circuit 7.

[0033] Meanwhile, the cutting motor 43 is connected to the outer side face of the cutter head 461.

[0034] Meanwhile, the positioning fixture includes an adjustment table 51, a telescopic drive rod 52, an electric positioning fixture 53, a turntable mechanism 41, a drainage fan 55, a diversion pipe 56, an inclination sensor 467, a tension sensor 57, and a horizontal telescopic column 58. The adjustment table 51 has a cavity structure with a rectangular cross-section. Its front end face is provided with a return port 59, and the axis of the return port 59 is perpendicular to the axis of the bearing table 1. The drainage fan 55 is embedded in the adjustment table 51 and is coaxially distributed with the return port 59. The rear end face of the adjustment table 51 is provided with an exhaust port 50, which is communicated with the diversion pipe 56 through the exhaust port 50. There are two horizontal telescopic columns 58 in total, which are connected to the upper end face of the adjustment table 51 and are coaxially distributed. The axes of the two horizontal telescopic columns 58 are parallel to the axis of the bearing table 1. The front end face of the horizontal telescopic column 58 is located outside the side surface of the adjustment table 51 and is connected to a turntable mechanism 41. The turntable mechanism 41 is coaxially distributed with the horizontal telescopic column 58 and is connected to the rear end face of a telescopic drive rod 52. The axis of the telescopic drive rod 52 is perpendicular to and intersects the axis of the telescopic drive rod 58. At the same time, the telescopic drive rod 52 rotates around the axis of the horizontal telescopic column 58 within the range of 0° - 180° through the turntable mechanism 41. The front end face of the telescopic drive rod 52 is connected to the electric positioning fixture 53 through the turntable mechanism 41. The telescopic drive rod 52 and the electric positioning fixture 53 are coaxially distributed. At the same time, the electric positioning fixture 53 rotates around the axis of the telescopic drive rod 52 within the range of 0° - 360° through the turntable mechanism 41. At the same time, an inclination sensor 467 is provided on the outer side surface of the electric positioning fixture 53. The tension sensor 57 is connected to the upper end face of the adjustment table 51 and is located at the center position of the adjustment table 51. At the same time, the connecting sections of the tension sensor 57 are respectively connected to the telescopic drive rod 52 through springs 54. The springs 54 are coaxially distributed with the tension sensor 57 and are perpendicular to the axis of the telescopic drive rod 52. The telescopic drive rod 52, the electric positioning fixture 53, the turntable mechanism 41, the drainage fan 55, the inclination sensor 467, the tension sensor 57, and the horizontal telescopic column 58 are all electrically connected to the drive circuit 7.

[0035] The provided telescopic drive rod can flexibly adjust the working position of the electric positioning fixture in the direction perpendicular to the axis of the bearing table. The provided horizontal telescopic column can flexibly adjust the distance between the two electric positioning fixtures. That is, after positioning the pipeline through the two positioning fixtures, by increasing the distance between the two electric positioning fixtures, the tension of the pipeline at the local position to be cut is adjusted to prevent the pipeline from deforming due to the cutting force. The tension is detected by the provided tension sensor.

[0036] Meanwhile, the provided turntable structure can flexibly adjust the relative angle between the two electric positioning fixtures, thus meeting the needs of processing operations at different inclination angles.

[0037] In addition, the telescopic drive rod is driven by a turntable structure to rotate within the range of 0° to 180°. Additionally, some short pipe fittings can be directly clamped and positioned by a positioning fixture for cutting operations, reducing the operation of the pipe winding and unwinding mechanism, further improving the cutting efficiency and reducing the equipment operation cost.

[0038] Further optimized, both the telescopic drive rod 52 and the horizontal telescopic column 58 are at least two-stage electric telescopic rod structures.

[0039] In this embodiment, a guiding groove 8 is provided on both the front end face and the rear end face of the bearing platform 1 corresponding to the pipe winding and unwinding mechanism 6. The guiding groove 8 has a "U"-shaped cross-section and is vertically distributed perpendicular to the axis of the bearing platform 1. The pipe winding and unwinding mechanism 6 is embedded in the guiding groove 8 and is connected to the bearing platform 1 through the guiding groove 8.

[0040] Specifically, the pipe winding and unwinding mechanism 6 includes guiding slide rails 61, a lifting drive mechanism 463, a bearing tray 62, a reel 63, a constant torque motor 64, a swing arm 65, and a torque sensor 66. Among them, there are two guiding slide rails 61 in total, symmetrically distributed on the inner side surface of the guiding groove 8 and parallel to the axis of the guiding groove 8. The bearing tray 62 is a plate-like structure with a rectangular cross-section, and its side surface is slidably connected to the guiding slide rail 61 through the lifting drive mechanism 463. The lifting drive mechanism 463 is embedded in the guiding slide rail 61. The upper end face of the bearing tray 62 is parallel to the upper end face of the bearing platform 1, and a reel 63 is provided. The axis of the reel 63 is vertically distributed and intersects with the axis of the bearing platform 1, and is hinged to the upper end face of the bearing tray 62 through 1 to 2 swing arms 65. The axis of the swing arm 65 forms an angle of 0° to 90° with the upper end face of the bearing tray 62, and its lower end face is hinged to the upper end face of the bearing tray 62 through the constant torque motor 64. At the same time, a torque sensor 66 is provided at the constant torque motor 64. The lifting drive mechanism 463, the reel 63, the constant torque motor 64, and the torque sensor 66 are all electrically connected to the drive circuit 7.

[0041] In this embodiment, the drive circuit 7 is a circuit system based on a programmable controller, and at the same time, a control interface including but not limited to any one or several of a display, a button, and a potentiometer is additionally provided.

[0042] A cutting method for a pipe fixed-length intelligent cutting device for automobile parts processing includes the following steps:

[0043] S1, Equipment pre-treatment. First, the pipe equipment to be cut is assisted in bearing and positioning through the pipe winding and unwinding mechanism on one side of the bearing platform. At the same time, the cutting mechanism is driven to pre-run and standby according to the material of the pipe to be cut.

[0044] S2, cutting adjustment, first the driving pipe retracting and releasing mechanism at the front end of the carrier platform is operated, driving the pipe to be cut to run at a uniform speed along the axis of the carrier platform toward the rear end of the carrier platform, and the pipe retracting and releasing mechanism at the rear end of the carrier platform receives the pipe; then the heavy-duty driving guide rail is driven to operate, and the heavy-duty driving guide rail adjusts the working position of the cutting mechanism and the positioning fixture through the slider, and then the positioning fixture clamps the pipe and positions it, and adjusts the local pipe distribution direction and structure at the pipe cutting part, thereby adjusting the cutting angle;

[0045] S3, cutting operation, after completing the partial clamping and positioning of the pipeline, the cutting mechanism is driven to operate, on the one hand, the working height and angle of the cutter head in the cutting mechanism are adjusted, and on the other hand, the rotation speed and temperature of the circular knife are adjusted. After the cutting mechanism reaches the set parameters, the cutting mechanism performs a cutting operation on the pipeline, and after the cutting operation is completed, the circular knife of the cutting mechanism is reset with the cutter head. At the same time, the positioning fixture releases a section of the pipeline after the cutting operation is completed, and the pipeline retracting mechanism at the rear end of the carrier platform collects it; then the positioning fixture releases the pipeline to be cut, and the pipeline retracting mechanism at the front end of the carrier platform drives the pipeline to continue to be transported, and the pipeline retracting mechanism at the rear end of the carrier platform performs auxiliary clamping and positioning again, and then the pipeline retracting mechanism at the rear end of the carrier platform performs auxiliary clamping and positioning again, and then the pipeline can be returned to step S2 for subsequent cutting operations.

[0046] Compared with the prior art, the present invention has a high degree of integration, modularization and automation. On the one hand, it can effectively meet the needs of pipeline cutting operations of various materials, pipe diameters and structural types, thereby effectively improving the flexibility and reliability of the cutting operation; on the other hand, the cutting operation has high control accuracy, which can effectively improve the stability of pipeline cutting and shaping quality, processing accuracy and work efficiency.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent pipe fixed-length cutting device for automobile parts processing, characterized in that, The pipe fixed-length intelligent cutting device for automobile parts processing includes a bearing platform, heavy-duty driving guide rails, a sliding table, a cutting mechanism, a positioning fixture, a pipe winding and unwinding mechanism, and a driving circuit. The bearing platform is a frame structure with a rectangular cross-section, and its axis is parallel to the horizontal plane. Two mutually parallel heavy-duty driving guide rails are arranged on the bearing platform, and the two heavy-duty driving guide rails are symmetrically distributed on both sides of the axis of the bearing platform and are parallel to the axis of the bearing platform. The heavy-duty driving guide rails are respectively slidably connected to at least one sliding table. Among them, the sliding table located at the rear side of the bearing platform is connected to the cutting mechanism, and the sliding table located at the front side of the bearing platform is connected to the positioning fixture. Moreover, the cutting mechanism and the positioning fixture are slidably connected to the upper end surface of the bearing platform through the heavy-duty driving guide rails and the sliding table. There are two pipe winding and unwinding mechanisms, which are symmetrically distributed outside the front end surface and the rear end surface of the bearing platform and are connected to the outer side surface of the bearing platform. The driving circuit is located inside the bearing platform and is electrically connected to the heavy-duty driving guide rails, the cutting mechanism, the positioning fixture, and the pipe winding and unwinding mechanism respectively; The cutting mechanism includes a turntable mechanism, a robotic arm, a cutting motor, a circular knife, an electromagnetic induction coil, and a tool holder. The lower end surface of the robotic arm is hinged to the upper end surface of the adjustment table through the turntable mechanism, and the front end surface of the robotic arm is hinged to a tool holder through the turntable mechanism. The tool holder is a circular cavity structure, the circular knife is embedded in the tool holder, and the circular knife and the tool holder are coaxially distributed. Moreover, the diameter of the tool holder is 30% - 60% of the diameter of the circular knife. The circular knife is connected to the cutting motor through a transmission shaft and is coaxially distributed. And the magnetic induction coil is embedded in the tool holder, with at least two symmetrically distributed on both sides of the circular knife. At the same time, the two electromagnetic induction coils are annular structures coaxial with the circular knife and are respectively connected to the inner side surfaces of the tool holder on both sides of the circular knife. The turntable mechanism, the robotic arm, the cutting motor, the electromagnetic induction coil, and the tool holder are all electrically connected to the driving circuit; The tool holder includes a tool disc, a positioning frame, a lifting driving mechanism, a pressure sensor, a temperature sensor, a laser rangefinder, and an inclination sensor. Among them, the positioning frame is a frame structure with an "H" - shaped cross-section, and the groove body on its rear end surface is hinged to the front end surface of the robotic arm through the turntable mechanism. The tool disc is embedded in the groove on the front end surface of the positioning frame and is slidably connected to the inner side surface of the positioning frame through the lifting driving mechanism. And the axis of the lifting driving mechanism is parallel to the axis of the positioning frame. The tool disc includes a left disc and a right disc. The left disc and the right disc are connected by a transmission shaft and are coaxially distributed. The circular knife is located between the left disc and the right disc and is connected to the transmission shaft. At the same time, the electromagnetic induction coil is respectively connected to the inner side surfaces of the left disc and the right disc through hard heat-resistant insulating blocks. The temperature sensor and the laser rangefinder are both embedded at the lower end surface of the tool disc. And the detection axis of the laser rangefinder is parallel to the axis of the positioning frame, perpendicular to the axis of the circular knife and intersects it. There are two pressure sensors, which are respectively located at the connection positions of the left disc and the right disc of the tool disc and the lifting driving mechanism. The inclination sensor is connected to the outer side surface of the positioning frame. And the lifting driving mechanism, the pressure sensor, the temperature sensor, the laser rangefinder, and the inclination sensor are all electrically connected to the driving circuit;The positioning fixture includes an adjustment table, a telescopic drive rod, an electric positioning fixture, a turntable mechanism, a drainage fan, a diversion pipe, an inclination sensor, a tension sensor, and a horizontal telescopic column. The adjustment table has a cavity structure with a rectangular cross-section. Its front end face is provided with a return port, and the axis of the return port is vertically distributed with the axis of the bearing table. The drainage fan is embedded in the adjustment table and coaxially distributed with the return port. The rear end face of the adjustment table is provided with an exhaust port, which is communicated with the diversion pipe through the exhaust port. There are two horizontal telescopic columns in total, which are connected to the upper end face of the adjustment table and coaxially distributed. The axes of the two horizontal telescopic columns are parallel to the axis of the bearing table. The front end face of the horizontal telescopic column is located outside the side surface of the adjustment table and is connected to a turntable mechanism. The turntable mechanism is coaxially distributed with the horizontal telescopic column and is connected to the rear end face of a telescopic drive rod. The telescopic drive rod rotates around the axis of the horizontal telescopic column within a range of 0° to 180° through the turntable mechanism. The front end face of the telescopic drive rod is connected to the electric positioning fixture through the turntable mechanism. The telescopic drive rod and the electric positioning fixture are coaxially distributed. At the same time, the electric positioning fixture rotates around the axis of the telescopic drive rod within a range of 0° to 360° through the turntable mechanism. At the same time, an inclination sensor is provided on the outer side surface of the electric positioning fixture. The tension sensor is connected to the upper end face of the adjustment table and is located at the center position of the adjustment table. At the same time, the connecting sections of the tension sensor are respectively connected to the telescopic drive rod through springs. The springs are coaxially distributed with the tension sensor and are vertically distributed with the axis of the telescopic drive rod. The telescopic drive rod, the electric positioning fixture, the turntable mechanism, the drainage fan, the inclination sensor, the tension sensor, and the horizontal telescopic column are all electrically connected to the drive circuit; both the telescopic drive rod and the horizontal telescopic column are at least two-stage electric telescopic rod structures.

2. The intelligent pipe fixed-length cutting device for automobile parts processing according to claim 1, wherein, A guiding groove is provided on both the front end face and the rear end face of the bearing table corresponding to the pipe winding and unwinding mechanism, and is vertically distributed with respect to the axis of the bearing table. The pipe winding and unwinding mechanism is embedded in the guiding groove and is connected to the bearing table through the guiding groove.

3. An intelligent pipe fixed-length cutting device for automobile parts processing according to claim 1 or 2, characterized in that, The pipe winding and unwinding mechanism includes guiding slide rails, a lifting drive mechanism, a bearing tray, a winder, a constant torque motor, a swing arm and a torque sensor. Among them, there are two guiding slide rails in total, symmetrically distributed on the inner side surface of the guiding groove and parallel to the axis of the guiding groove. The bearing tray is a plate-like structure with a rectangular cross-section, and its side surface is slidably connected to the guiding slide rail through the lifting drive mechanism, and the lifting drive mechanism is embedded in the guiding slide rail. The upper end face of the bearing tray is parallel to the upper end face of the bearing table, and a winder is provided. The axis of the winder is vertically distributed and intersects with the axis of the bearing table, and is hinged to the upper end face of the bearing tray through 1-2 swing arms. The axis of the swing arm forms an angle of 0°-90° with the upper end face of the bearing tray, and its lower end face is hinged to the upper end face of the bearing tray through a constant torque motor. At the same time, a torque sensor is provided at the constant torque motor. The lifting drive mechanism, the winder, the constant torque motor and the torque sensor are all electrically connected to the drive circuit.

4. An intelligent pipe fixed-length cutting device for automobile parts processing according to claim 1, characterized in that, The drive circuit is a circuit system based on a programmable controller, and at the same time, a control interface including but not limited to any one or several of a display, a button, and a potentiometer is provided.

5. The cutting method of an intelligent pipe fixed-length cutting device for automobile parts processing according to claim 1, characterized in that The cutting method includes the following steps: S1. Equipment pre-treatment: First, the pipe equipment to be cut is assisted in bearing and positioning through the pipe winding and unwinding mechanism on one side of the bearing table. At the same time, the cutting mechanism is driven to pre-run and standby according to the material of the pipe to be cut. S2. Cutting adjustment: First, the pipe winding and unwinding mechanism at the front end face of the bearing table is operated to drive the pipe to be cut to run uniformly along the axis of the bearing table towards the rear end of the bearing table, and the pipe is received by the pipe winding and unwinding mechanism at the rear end of the bearing table. Then, the heavy-duty drive guide rail is driven to run. The heavy-duty drive guide rail adjusts the working positions of the cutting mechanism and the positioning fixture through the slider. Then, the pipe is clamped and positioned by the positioning fixture, and the local pipe distribution direction and structure at the cutting part of the pipe are adjusted, so as to adjust the cutting angle. S3. Cutting operation: After the pipe is locally clamped and positioned, the cutting mechanism is driven to run. On the one hand, the working height and angle of the cutter head frame in the cutting mechanism are adjusted, and on the other hand, the rotation speed and temperature of the circular knife are adjusted. After the cutting mechanism reaches the set parameters, the pipe is cut by the cutting mechanism. After the cutting operation is completed, the circular knife of the cutting mechanism returns with the cutter head frame. At the same time, the positioning fixture releases a section of the pipe after the cutting operation is completed, and it is collected by the pipe winding and unwinding mechanism at the rear end of the bearing table. Then, the positioning fixture releases the pipe to be cut, and the pipe is driven to continue to be conveyed by the pipe winding and unwinding mechanism at the front end of the bearing table, and is again assisted in clamping and positioning by the pipe winding and unwinding mechanism at the rear end of the bearing table, and then the subsequent cutting operation can be returned to step S2.

Images