Sawing machine device for processing metal parts of sanitation vehicles

Abstract

The present application relates to the technical field of sanitation vehicle metal parts processing, and specifically discloses a sawing machine device for sanitation vehicle metal parts processing, which comprises a mounting chassis, a sawing mechanism, a workpiece transfer mechanism, a controller and a chip collecting hopper; the sawing mechanism is arranged on the top front side of the mounting chassis; the workpiece transfer mechanism is arranged on the top rear side of the mounting chassis; and the controller is installed on the top left front side of the mounting chassis through a support. The present application has highly integrated automatic control processing capability, realizes full-process automatic linkage operation, adopts a circumferential multi-point synchronous centering clamping mode, can effectively inhibit the bending deformation and radial shaking generated in the long pipe processing process, ensures that the pipe cutting section is flat and smooth without obvious burrs, and can complete flat cutting and two-end bevel processing at one time, thereby meeting the high-precision, large-batch and standardized industrial processing and production requirements of sanitation vehicle metal parts.

Description

Technical Field

[0001] This invention relates to the field of metal parts processing technology for sanitation vehicles, specifically a sawing device for processing metal parts for sanitation vehicles. Background Technology

[0002] Sanitation vehicles, as specialized equipment for urban environmental sanitation, garbage transfer, and road maintenance, are assembled from various precision metal components. The subframe diagonal brace, a key load-bearing and connecting metal component of the sanitation vehicle chassis, is made of high-strength alloy steel through cutting, bending, welding, and anti-corrosion coating processes. Primarily installed between the main frame and subframe, it provides rigid support, load distribution, shock absorption, and structural reinforcement. It effectively distributes the weight of the working device and the vehicle body, as well as the alternating loads generated by driving bumps, enhancing the overall chassis structural stability and torsional rigidity. This reduces frame deformation, vibration, and abnormal noise during vehicle operation and driving, while also improving the load-bearing capacity of sanitation vehicles under complex road conditions. Load capacity, ride comfort, and overall service life are essential core metal components that ensure the reliability and structural strength of sanitation vehicles. The subframe diagonal brace in the metal parts of sanitation vehicles is made of high-strength square tubing. Both ends of the tubing are precisely cut at a 45-degree angle using specialized sawing equipment. The regular 45-degree end face allows for a perfect fit between the diagonal brace and the frame connection, increasing the welding contact area, improving the weld fusion quality and connection firmness, effectively reducing welding stress concentration, enhancing the overall structural rigidity and torsional load-bearing capacity of the subframe diagonal brace, and ensuring assembly alignment accuracy. This adapts to the complex load-bearing conditions of sanitation vehicles and avoids problems such as deformation, cracking, and abnormal noise due to poor end face fit. Currently, in the field of sawing and processing square tubes for metal bracing of sanitation vehicles, traditional processing equipment generally suffers from low automation. Tube feeding, positioning, clamping, distance measurement, feeding, and angle cutting largely rely on manual intervention. At the same time, traditional clamping methods mostly adopt single-point, single-sided rigid clamping structures, resulting in poor tube clamping and centering, uneven force distribution, and easy occurrence of central deflection and radial sway during the processing of long square tubes. The large vibration amplitude during sawing further causes processing defects such as many burrs, poor flatness, and non-standard bevel angles on the cut surface. In addition, the angle adjustment method of general-purpose cutting equipment is rudimentary, with low angle adjustment accuracy and limited adjustment range, making it difficult to stably complete the precise 45° beveling process at both ends of square tubes in batches. This cannot meet the high-standard, batch, and high-precision production and processing requirements of high-strength metal parts for sanitation vehicles. Summary of the Invention

[0003] The purpose of this invention is to provide a sawing device for processing metal parts of sanitation vehicles, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a sawing device for processing metal parts of sanitation vehicles, comprising: a mounting base, a sawing mechanism, a workpiece conveying mechanism, a controller, and a chip collection hopper; the sawing mechanism is disposed on the top front side of the mounting base; the workpiece conveying mechanism is disposed on the top rear side of the mounting base; the controller is mounted on the top left front of the mounting base via a bracket; the chip collection hopper is embedded inside the mounting base and located below and behind the sawing mechanism.

[0005] Preferably, the sawing mechanism includes: a horizontal moving module, a vertical moving module, and a cutting component; the horizontal moving module is fixedly installed on the front side of the top of the mounting base in the left-right direction, and the horizontal moving module is electrically connected to the controller; the vertical moving module is fixedly installed on the top of the moving end of the horizontal moving module in the front-back direction, and the vertical moving module is electrically connected to the controller; the cutting component is disposed on the top of the moving end of the vertical moving module.

[0006] Preferably, the cutting component includes: a housing shell and a sealing curtain; the housing shell is fixedly installed on the upper surface of the moving end of the longitudinal moving module; the sealing curtain is embedded in the through groove opened on the rear side of the inner cavity of the housing shell along the vertical direction; wherein, the upper and lower ends of the inner front side of the housing shell are provided with angle adjustment units, and the rear side of the angle adjustment unit is provided with an execution unit.

[0007] Preferably, the angle adjustment unit includes: a guide rail frame, a first lead screw assembly, a slider seat, a first motor, a first support rod, a connecting frame, a first limiting groove, a limiting shaft, and a limiting cap; the number of guide rail frames is two, and the two guide rail frames are respectively installed in the inner cavity of the housing shell; the number of first lead screw assemblies is two, and the lead screws of the two first lead screw assemblies are respectively installed on the inner sides of the left and right guide rail frames; the number of slider seats is two, and the two slider seats are respectively sleeved on the outside of the left and right guide rail frames, and the inner sides of the two slider seats are respectively connected to the lead screw nuts of the left and right first lead screw assemblies; the number of first motors is two, and the two first motors are respectively installed on the outside of the left and right guide rail frames, and the rotating ends of the two first motors respectively extend into the left and right guide rail frames. On the inner side of the two right guide rail frames, the first motor and controller are electrically connected; there are two sets of first support rods, with two first support rods in each set. The two sets of first support rods are rotatably installed on the upper and lower ends of the outer sides of the two left and right slider seats via a rotating shaft. The two sets of first support rods are arranged in an X-shape. The connecting frame is rotatably installed on the inner side of the other end of the upper and lower sets of first support rods via a rotating shaft in the left and right direction; there are two sets of first limiting grooves, with two first limiting grooves in each set. The two sets of first limiting grooves are opened vertically through the middle of the two sets of first support rods; the limiting shaft is engaged with the inner cavity of the two sets of first limiting grooves in the up and down direction. There are two limiting caps, with the two limiting caps installed on the upper and lower ends of the limiting shaft.

[0008] Preferably, the execution unit includes: a mounting plate, a fixed seat, a rotating plate, a slide rail, a second lead screw assembly, a second motor, a second limit slider, a second support rod, a saw blade, a third motor, and a first transmission belt assembly; the mounting plate is fixedly installed along the vertical direction on the rear end of the connecting frame in the upper and lower angle adjustment units; there are two fixed seats, which are respectively fixedly installed on the left and right sides of the middle of the bottom end of the rear end of the outer surface of the mounting plate; the rotating plate is rotatably installed along the vertical direction on the inner side of the left and right fixed seats via a rotating shaft; the slide rail is fixedly installed along the vertical direction on the middle of the top end of the rear side of the outer surface of the mounting plate; the lead screw of the second lead screw assembly is disposed inside the slide rail in the vertical direction; the second motor is fixedly installed on the middle of the top end of the outer surface of the mounting plate via a bracket, and the bottom of the rotating end of the second motor is connected to the lead screw of the second lead screw assembly. The top of the screw shaft is fixedly connected, and the second motor and controller are electrically connected; the second limiting slider is inserted into the inside of the slide frame, and the inside of the second limiting slider is connected to the screw nut of the second lead screw assembly; one end of the second support rod is rotatably mounted on the upper rear side of the outer surface of the second limiting slider through a rotating shaft seat, and the other end of the second support rod is rotatably connected to the upper front side of the outer surface of the rotating plate through a rotating shaft seat; the saw blade is rotatably mounted on the upper rear side of the outer surface of the rotating plate through a rotating shaft seat, and the outer side of the saw blade extends from the inner side of the sealing curtain to the outer side of the housing shell; the third motor is mounted on the lower rear side of the outer surface of the rotating plate through a bracket, and the third motor and controller are electrically connected; one end of the first transmission belt assembly pulley is fixedly mounted on the right side of the rotating end of the third motor, and the other end of the first transmission belt assembly pulley is connected to the outside of the saw blade shaft key.

[0009] Preferably, the workpiece transfer mechanism includes: a first limiting component, a mounting base plate, a dual-end drive motor, a first rack, and a first gear; the number of the first limiting components is two, and the two first limiting components are respectively fixedly installed on the left and right sides of the upper surface of the mounting base in the front-back direction; the mounting base plate is installed on the top of the limiting ends of the left and right first limiting components; the dual-end drive motor is fixedly installed on the middle of the rear side of the upper surface of the mounting base plate through a bracket, and the dual-end drive motor is electrically connected to a controller; the number of the first racks is two, and the two first racks are respectively fixedly installed on the upper surface of the mounting base in the front-back direction and located at the left and right ends inside the left and right first limiting components; the number of the first gears is two, and the two first gears are respectively installed on the outside of the left and right rotating ends of the dual-end drive motor, and the left and right first gears mesh with the left and right first racks respectively.

[0010] Preferably, a double-ended moving component is provided on the front side of the top end of the upper surface of the first limiting component, and an auxiliary fixing component is provided on the upper surface of the first limiting component and on the rear side of the double-ended moving component. A measuring and positioning component and a workpiece fixing component are respectively provided on the left and right moving ends of the double-ended moving component.

[0011] Preferably, the measuring and positioning component includes: a square frame, an annular frame, a micro telescopic module, a roller frame, a linear motion module, and a measuring sensor; the square frame is fixedly installed on the top of one moving end of the double-ended moving component, and a circular groove running through the middle of the square frame is formed; the annular frame is embedded in the cavity of the groove in the middle of the square frame, and a square groove is formed in the middle of the annular frame; the number of micro telescopic modules is four, and the four micro telescopic modules are respectively installed at a circumferential interval of 90 degrees on the left side of the outer surface of the annular frame, and located outside the square groove, and the micro telescopic modules are electrically connected to the controller; the number of roller frames is four, and the four roller frames are respectively fixedly installed on the upper surface of the mounting base in the front-back direction, and located at the left and right ends inside the two first limiting components; the linear motion module is installed on the upper left side of the outer surface of the annular frame, and the linear motion module is electrically connected to the controller; the measuring sensor is fixedly installed on the left side of the moving end of the linear motion module, and the measuring sensor is electrically connected to the controller.

[0012] Preferably, the workpiece fixing component includes: a fixed outer shell, a rotating seat, a fifth motor, a second transmission belt assembly, a support seat, an arc-shaped bracket, and an annular cover; the fixed outer shell is fixedly installed on the top of the other moving end of the double-ended moving component; the rotating seat is rotatably installed on the top of the outer surface of the fixed outer shell through a bearing seat; the fifth motor is fixedly installed in the inner cavity of the fixed outer shell, the rotating end of the fifth motor extends out of the outside of the fixed outer shell, and the fifth motor is electrically connected to the controller; one end of the second transmission belt assembly is fixedly installed on the rotating end of the fifth motor, and the other end of the second transmission belt assembly is fixedly connected to the right end of the shaft of the rotating seat; the support seat is fixedly installed on the left end of the rotating seat in the vertical direction; there are two arc-shaped brackets, which are respectively fixedly installed on the lower left side of the outer surface of the support seat at the upper and lower ends; the annular cover is fixedly installed on the left side of the outer surface of the upper and lower arc-shaped brackets in the vertical direction, and a circular slot with a through-hole is opened in the middle of the annular cover.

[0013] Preferably, the workpiece fixing component further includes: a rotating disk, a second limiting groove, an annular disk, a slot, a pressure block, a limiting pin, a limiting slide, a third slider, a third lead screw assembly, a sixth motor, a drive rod, and a connecting rod; the rotating disk has two parts, which are respectively movably engaged with the inner left and right ends of the upper and lower arc-shaped brackets, and the rotating disk has a circular slot that runs through the center; the second limiting groove has two sets, with two second limiting grooves in each set, and the two sets of second limiting grooves are opened in the front-back direction in the left-right through direction. The upper and lower sides of the two rotating disks; the annular disk is fixedly installed on the inner side of the two upper and lower arc-shaped brackets, and located inside the two rotating disks; the number of slots is four, with two slots of four slots, and the four slots are opened at a 90-degree interval around the side wall of the annular disk. The outer side of the inner cavity of the upper and lower slots on the left and right sides communicates with the inner cavity of the two sets of second limiting grooves on the left and right sides respectively; the number of pressure blocks is four, and the four pressure blocks are respectively inserted into the inner cavity of the four slots; the number of limiting pins is two sets, and each set of limiting pins... There are two sets of limiting pins, which are respectively installed on the left and right sides of the outer surface of the upper and lower pressure blocks. The limiting pins extend out of the inner cavity of the slot and are inserted into the inner cavity of the second limiting groove. The limiting slide groove is opened on the upper left side of the outer surface of the support base in the vertical direction. The third slider is adapted to be inserted into the inner cavity of the limiting slide groove, and the left side of the third slider extends out of the outer side of the limiting slide groove. The screw of the third lead screw assembly is set in the inner cavity of the limiting slide groove in the vertical direction, and the screw nut of the third lead screw assembly is connected to the inside of the third slider. The sixth motor is fixedly installed on the top of the outer surface of the support base. The rotating end of the sixth motor extends into the inner cavity of the limiting slide groove and is fixedly connected to the top of the screw shaft of the third lead screw assembly. The sixth motor and the controller are electrically connected. The drive rod is rotatably installed on the left side of the outer surface of the third slider through a rotating shaft in the front-back direction. There are two connecting rods. One end of the two connecting rods is rotatably installed on the front and rear ends of the right side of the drive rod through a rotating shaft. The other end of the two connecting rods is rotatably connected to the front and rear ends of the outer sides of the left and right rotating disks through a rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The sixth motor drives the lead screw in the third lead screw assembly to rotate, causing the lead screw nut in the third lead screw assembly to drive the third slider. The third slider moves upward along the inner cavity of the limiting groove. With the cooperation of the drive rod, the third slider pulls one end of the connecting rods on both sides to move upward. The other ends of the connecting rods on both sides drive the left and right rotating disks to rotate inside the upper and lower arc-shaped brackets. While rotating, the rotating disks continuously press against the limiting pins by relying on the inner wall of the second limiting groove opened inside them. Through the transmission linkage of the pressure blocks, the rotational power is transmitted to the four pressure blocks arranged around the perimeter. The pressure blocks cooperate to radially converge along the inner cavity of the slot at the corresponding position to clamp, automatically center, and stably clamp the square tube inside the annular disk. The fifth motor drives one side of the pulley of the second transmission belt assembly to rotate, and then the rotation of the second transmission belt assembly drives the rotating seat. The system drives the support base to rotate, and with the cooperation of the support base, drives the workpiece inside the annular disk to rotate axially to a specified angle position. The four micro telescopic modules extend synchronously, driving the roller frame at the corresponding position to move inward, so that the rollers in the roller frame fit against the outer wall of the square tube, achieving auxiliary fixing support. The linear movement module drives the micro telescopic module to approach the tube below. The measuring sensor measures the required cutting length of the tube in real time. The preset algorithm inside the controller controls the workpiece fixing component and the measuring positioning component in the double-end moving part in real time according to the required cutting length. The measuring positioning component moves horizontally along the left and right directions of the tube outside with the cooperation of the internal roller frame to determine the coordinates of the cutting position in sequence. The workpiece fixing component feeds the internally fixed tube horizontally along the inside of the measuring positioning component to achieve orderly cutting of the tube workpiece.

[0015] 2. The horizontal movement module drives the vertical movement module to move horizontally left and right, and the vertical movement module drives the cutting component to move forward and backward. This causes the cutting component to move horizontally along both axes to the position in front of the pipe workpiece cutting location. The second motor drives the lead screw in the second lead screw assembly to rotate, causing the lead screw nut in the second lead screw assembly to drive the second limit slider. The second limit slider moves downward along the inside of the slide frame, and simultaneously drives one end of the second support rod to move downward. Under the support and push of the second support rod, the rotating plate is driven to flip backward inside the fixed seat, driving the saw blade to extend backward from inside the sealing curtain. The third motor drives one pulley of the first transmission belt assembly to rotate. Under the transmission of the first transmission belt assembly, the saw blade rotates at high speed, thereby positioning the left end of the measuring and positioning component. The pipe workpiece is sawn and cut into blanks of a specified length. The first motors on the left and right sides drive the lead screws in the first lead screw assemblies at the corresponding positions to rotate, causing the lead screw nuts in the first lead screw assemblies to drive the slider seats. The slider seats on both sides translate left and right along the outside of the guide rail frame at the corresponding positions, thereby causing the first lead screw assemblies on both sides to drive one end of the two first support rods at the corresponding positions to move left and right. At the same time, the first limiting groove opened inside the first support rod moves along the outside of the limiting shaft, thereby changing the axis at the intersection of the two sets of first support rods, so that the two sets of first support rods drive the connecting frame to tilt to the left or right, thereby changing the tilt direction of the saw blade behind the connecting frame, so that the saw blade performs a 45-degree angle sawing operation on the left and right ends of the blank.

[0016] In summary, this invention possesses highly integrated automated control processing capabilities, enabling fully automated and coordinated operations across the entire process of pipe ranging, positioning, clamping, transfer, and cutting. Employing a circumferential multi-point synchronous centering and clamping method, it achieves automatic pipe centering and positioning, effectively suppressing bending deformation and radial vibration during the processing of long pipes. Combined with an auxiliary support structure, it further enhances the straightness of the pipe processing, reduces the impact of sawing vibration on processing accuracy, and ensures a smooth, flat cut surface without obvious burrs. Furthermore, the equipment features high-precision angle adjustment capabilities, enabling stable fixed-angle beveling of pipe ends. The angle adjustment is precise and highly repeatable, allowing for one-time completion of straight cuts and beveling at both ends. It is suitable for mass production of various specifications of metal pipes, meeting the high-precision, high-volume, and standardized industrial processing needs of sanitation vehicle metal parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Exploded view of the sawing mechanism; Figure 3 for Figure 2 Exploded view of the cut components; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 for Figure 3 Enlarged view of point B; Figure 6 for Figure 1 Exploded view of the workpiece transfer mechanism; Figure 7 for Figure 6 Exploded view of auxiliary fixing components; Figure 8 for Figure 6 Exploded view of the measuring and positioning components; Figure 9 for Figure 6 Exploded view of the workpiece fixing components.

[0018] In the diagram: 1. Mounting base frame; 2. Sawing mechanism; 21. Horizontal moving module; 22. Vertical moving module; 3. Cutting component; 31. Housing shell; 32. Sealing curtain; 33. Guide rail frame; 34. First lead screw assembly; 35. Slider seat; 36. First motor; 37. First support rod; 38. Connecting frame; 39. First limiting groove; 310. Limiting shaft; 311. Limiting cap; 312. Mounting plate; 313. Fixed seat; 314. Rotating plate; 315. Sliding... 316. Slot frame; 317. Second lead screw assembly; 318. Second motor; 319. Second limit slider; 320. Second support rod; 321. Saw blade; 322. Third motor; 323. First transmission belt assembly; 4. Workpiece transfer mechanism; 41. First limit assembly; 42. Mounting base plate; 43. Double-end drive motor; 44. First rack; 45. First gear; 46. Second limit assembly; 47. Moving base plate; 48. Fourth motor; 49. Second rack; 41. 0. Second gear; 5. Auxiliary fixing component; 51. Base; 52. Third limiting component; 53. Electromagnetic linear slide; 54. Vertical plate; 55. Bracket; 56. Telescopic frame; 57. Linear motor; 58. Rotation module; 59. Clamping module; 6. Measuring and positioning component; 61. Square frame; 62. Ring frame; 63. Miniature telescopic module; 64. Roller frame; 65. Linear movement module; 66. Measuring sensor; 7. Workpiece fixing component; 71. Fixing shell. 72. Rotating seat, 73. Fifth motor, 74. Second transmission belt assembly, 75. Support seat, 76. Arc bracket, 77. Annular cover, 78. Rotating disk, 79. Second limiting groove, 710. Annular disk, 711. Slot, 712. Pressure block, 713. Limiting pin, 714. Limiting slide, 715. Third slider, 716. Third lead screw assembly, 717. Sixth motor, 718. Drive rod, 719. Connecting rod, 8. Controller, 9. Chip hopper. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0020] Please see Figure 1-9 This invention provides a technical solution: a sawing machine device for processing metal parts of sanitation vehicles, comprising: a mounting base 1, a sawing mechanism 2, a workpiece conveying mechanism 4, a controller 8, and a chip collection hopper 9; the sawing mechanism 2 is located on the top front side of the mounting base 1, which serves as the basic load-bearing component for the entire machine, adopting an integrated frame-type load-bearing structure to provide a rigid support foundation for the stability of the entire machine's processing; the workpiece conveying mechanism 4 is located on the top rear side of the mounting base 1; the controller 8 is mounted on the top left front of the mounting base 1 via a bracket, and is securely mounted on the top left front position of the mounting base 1 via a metal fixing bracket, employing an industrial-grade programmable PLC controller, equipped with a touch operation display screen and a built-in computing processing chip, and possessing signal acquisition capabilities. The controller 8 integrates logic operations, motor speed control, stroke control, parameter storage, and fault self-diagnosis functions. Its electrical connection circuit adopts a waterproof and dustproof wiring structure, and is electrically connected to all electric actuators inside the equipment. It can pre-enter processing parameters, automatically issue action commands, and coordinate the synchronous linkage of various components to achieve automated processing control. The chip hopper 9 is embedded in the mounting base 1 and located below the rear side of the sawing mechanism 2. The chip hopper 9 is made of thin steel plate bent and welded, and its structure is a funnel-shaped chip collection cavity that is wider at the top and narrower at the bottom. The opening faces the bottom of the sawing processing area and is used to collect metal chips, cutting dust, and cutting fluid generated during metal pipe sawing operations, which is convenient for unified cleaning and recycling later.

[0021] As a preferred option, further, such as Figure 2As shown, the sawing mechanism 2 includes: a horizontal moving module 21, a vertical moving module 22, and a cutting component 3; the horizontal moving module 21 is fixedly installed on the front top of the mounting base 1 in the left-right direction. The horizontal moving module 21 is electrically connected to the controller 8. The horizontal moving module 21 adopts a precision ball screw linear module, and the outer shell is made of aluminum alloy hard anodized shell. The internal components are equipped with high-precision linear guides, silent ball screws, and servo drive structures. The controller 8 precisely controls the start / stop, moving stroke, and moving speed of the horizontal moving module 21, driving the upper vertical moving module 22 and the cutting component 3 to complete the lateral left-right displacement adjustment, realizing the lateral precise alignment of the saw blade processing point; the vertical moving module 21 is fixedly installed on the front top top of the mounting base 1 in the left-right direction. The moving module 22 is fixedly installed on the top of the moving end of the horizontal moving module 21 in the front-back direction. The vertical moving module 22 is electrically connected to the controller 8. The vertical moving module 22 adopts a heavy-duty linear sliding module. The module uses a precision linear slide rail with a lead screw transmission structure to adapt to the weight of the cutting component 3 and the reverse cutting force generated by the sawing operation. The vertical moving module 22 can receive electrical control signals from the controller 8 to complete precise feed and position fine adjustment in the front-back direction. It is used to realize the longitudinal displacement adjustment of the sawing mechanism as it approaches or moves away from the workpiece. It works with the horizontal moving module 21 to achieve precise dual-axis planar positioning of the cutting component. The cutting component 3 is set on the top of the moving end of the vertical moving module 22.

[0022] As a preferred option, further, such as Figure 3 , Figure 4 and Figure 5As shown, the cutting component 3 includes: a housing 31 and a sealing curtain 32; the housing 31 is fixedly installed on the upper surface of the moving end of the longitudinal moving module 22; the sealing curtain 32 is embedded in the through groove opened on the rear side of the inner cavity of the housing 31 along the vertical direction. The sealing curtain 32 is made of highly elastic, wear-resistant, soft rubber material. The curtain is evenly opened with clearance gaps to accommodate the swing of the saw blade. It can flexibly deform with the angle adjustment and extension movement of the saw blade. Without interfering with the normal 45° oblique cutting and straight cutting movement of the saw blade, it dynamically seals and shields the through groove on the rear side of the housing 31, which can block cutting dust and metal chips and protect the internal structure of the housing 31 from dust contamination; wherein, the upper and lower sides of the inner front side of the housing 31 Each end is equipped with an angle adjustment unit, which includes: a guide rail frame 33, a first lead screw assembly 34, a slider seat 35, a first motor 36, a first support rod 37, a connecting frame 38, a first limiting groove 39, a limiting shaft 310, and a limiting cap 311. There are two guide rail frames 33, each installed inside the outer shell 31 of the housing. The guide rail frames 33 serve as the longitudinal guide bearing base for the first lead screw assembly 34 and the slider seat 35. The guide rail frames 33 use precision linear guides to ensure the straightness and stability of the slider seat 35 during lateral sliding. There are also two first lead screw assemblies 34, with the lead screws of the two first lead screw assemblies 34 installed inside the left and right guide rail frames 33 respectively. The first lead screw assemblies 34 use... A high-precision ball screw transmission structure is used, which converts rotational motion into linear displacement by means of the screw nut, providing lateral driving force for the slider seat 35. There are two slider seats 35, each sleeved on the outside of the left and right guide rail frames 33. The inner sides of the two slider seats 35 are connected to the screw nuts of the left and right first screw assemblies 34. There are also two first motors 36, each mounted on the outside of the left and right guide rail frames 33. The rotating ends of the two first motors 36 extend into the inner sides of the left and right guide rail frames 33. The first motors 36 are electrically connected to the controller 8. The first motors 36 are small servo stepper motors, and their speed, direction, and rotation are precisely controlled by the controller 8. The first lead screw assembly 34 provides stable and controllable rotational power, enabling precise displacement adjustment of the slider seat 35. There are two sets of first support rods 37, with two rods in each set. These two sets of first support rods 37 are rotatably mounted on the upper and lower outer sides of the left and right slider seats 35 via a rotating shaft. The two sets of first support rods 37 are arranged in an X-shape, with the first support rods 37 symmetrically arranged in upper and lower groups. The first support rods 37 can convert the lateral displacement of the slider seat 35 into an angular deflection torque, providing a basis for angle adjustment for the rear-end execution unit, adapting to the 45° fixed oblique cutting requirements of the pipe. The connecting frame 38 is rotatably mounted on the inner side of the other end of the upper and lower sets of first support rods 37 via a rotating shaft in the left-right direction.There are two sets of first limiting grooves 39, with two first limiting grooves 39 in each set. The two sets of first limiting grooves 39 are vertically connected and opened in the middle of the two sets of first support rods 37. The limiting shaft 310 is engaged with the inner cavity of the two sets of first limiting grooves 39 in the vertical direction. The limiting shaft 310 serves as the movable hinge fulcrum of the cross-shaped first support rods 37 and can slide freely inside the first limiting grooves 39 to constrain the cross motion trajectory of the first support rods 37 and stabilize the center distance of the mechanical transmission. There are two limiting caps 311, which are installed at the upper and lower ends of the limiting shaft 310 respectively. The limiting caps 311 adopt a stepped limiting structure to axially limit and fix the limiting shaft 310, preventing the limiting shaft 310 from moving during high-frequency mechanical motion. The axial movement of the saw blade causes it to fall off. An execution unit is located at the rear of the angle adjustment unit. The execution unit includes: a mounting plate 312, a fixed base 313, a rotating plate 314, a slide rail 315, a second lead screw assembly 316, a second motor 317, a second limit slider 318, a second support rod 319, a saw blade 320, a third motor 321, and a first transmission belt assembly 322. The mounting plate 312 is fixedly installed along the vertical direction on the rear end of the connecting frame 38 in the upper and lower angle adjustment units. The mounting plate 312 serves as the integrated mounting base for all components of the execution unit and can synchronously complete tilting and deflection with the angle adjustment unit. Two fixed bases 313 are respectively fixedly installed on the rear end of the outer surface of the mounting plate 312. The left and right sides of the middle section; the rotating plate 314 is rotatably mounted on the inner side of the two fixed seats 313 along the vertical direction via a rotating shaft. The rotating plate 314 can achieve a small-amplitude back-and-forth oscillation by relying on the rotating shaft. As a support mounting plate for the saw blade 320 and the third motor 321, it can cooperate with the rear structure to complete the extension and retraction of the saw blade 320, realizing the dynamic switching of the cutting position; the slide frame 315 is fixedly mounted on the middle of the rear top of the outer surface of the mounting plate 312 along the vertical direction. The slide frame 315 can provide vertical guidance constraint for the second limit slider 318, limiting the movement trajectory of the second limit slider 318; the screw of the second lead screw assembly 316 is set inside the slide frame 315 along the vertical direction. The second lead screw assembly 316 adopts a precision micro roller. The ball screw structure converts the rotational power of the second motor 317 into the vertical linear power of the second limit slider 318, providing precise and controllable mechanical thrust for the oscillation of the saw blade 320. The second motor 317 is fixedly mounted on the top center of the outer surface of the mounting plate 312 via a bracket. The bottom of the rotating end of the second motor 317 is fixedly connected to the top of the screw shaft of the second screw assembly 316. The second motor 317 is electrically connected to the controller 8. The second motor 317 adopts a small servo geared motor. The second motor 317 can be precisely controlled by the controller 8 to rotate forward and backward and rotate in circles. It has the characteristics of low speed and high torque, smooth start and stop, and strong self-locking. It can precisely control the vertical stroke of the second limit slider 318 and realize precise adjustment of the extension amplitude of the saw blade 320.The second limiting slider 318 is inserted into the inside of the slide frame 315, and the inside of the second limiting slider 318 is connected to the screw nut of the second screw assembly 316; one end of the second support rod 319 is rotatably mounted on the upper rear side of the outer surface of the second limiting slider 318 via a rotating shaft seat, and the other end of the second support rod 319 is rotatably connected to the upper front side of the outer surface of the rotating plate 314 via a rotating shaft seat; the saw blade 320 is rotatably mounted on the upper rear side of the outer surface of the rotating plate 314 via a rotating shaft seat, and the outside of the saw blade 320 extends from the inside of the sealing curtain 32 to the outside of the housing shell 31. The saw blade 320 is made of carbide high-speed steel and is specially adapted for cutting carbon steel square pipes. The saw blade 320 can be rotated with the rotating plate 314 and extends through the sealing curtain 32 to the outside of the housing, and can complete straight cutting and 45° bevel cutting. The cutting end face is flat and burr-free, which meets the requirements of metal bevel cutting for sanitation vehicles. The system supports the precision machining requirements of the components. The third motor 321 is mounted on the lower rear side of the outer surface of the rotating plate 314 via a bracket. The third motor 321 is electrically connected to the controller 8. The third motor 321 is a high-speed variable frequency drive motor, fixedly mounted on the lower rear side of the rotating plate 314 via a fastening bracket. The speed of the third motor 321 can be adjusted by the controller 8 to provide continuous and stable rotational power for the sawing operation. One end of the first transmission belt assembly 322 is fixedly mounted on the right side of the rotating end of the third motor 321. The other end of the first transmission belt assembly 322 is externally connected to the shaft key of the saw blade 320. The first transmission belt assembly 322 consists of a high-strength rubber synchronous belt and an alloy pulley, ensuring that the power from the third motor 321 is smoothly transmitted to the saw blade 320, maintaining the speed stability of the saw blade 320's high-speed rotation, and improving the flatness of the pipe cutting surface.

[0023] As a preferred option, further, such as Figure 6As shown, the workpiece transfer mechanism 4 includes: a first limiting component 41, a mounting base plate 42, a double-ended drive motor 43, a first rack 44, and a first gear 45. There are two first limiting components 41, which are fixedly installed on the left and right sides of the upper surface of the mounting base 1 along the front-rear direction. The first limiting components 41 adopt a high-precision heavy-duty linear guide structure. The guide rail base is made of alloy steel through heat treatment and forming. High-wear-resistant ball bearing sliders are installed on the outside of the guide rail, which can withstand the self-weight load and cutting vibration load during the transfer of the square tube. It provides high-precision linear guidance constraint for the upper mounting base plate 42, restricts the offset degree of freedom of the mounting base plate 42, and ensures the smooth forward and backward feeding and transfer of the workpiece. The straightness and stability are ensured; the mounting base 42 is installed on the top of the limiting ends of the left and right first limiting components 41; the double-end drive motor 43 is fixedly installed on the middle rear side of the upper surface of the mounting base 42 by a bracket, and the double-end drive motor 43 is electrically connected to the controller 8. The double-end drive motor 43 is a dual-output shaft servo drive motor with an integrated encoder and reduction structure. It can maintain position locking in the power-off state. The double-end drive motor 43 can provide stable and controllable driving power for the meshing transmission of the first gear 45 to meet the power requirements of pipe transfer; there are two first racks 44, which are fixedly installed on the upper surface of the mounting base 1 along the front-back direction and located on the left and right sides. The inner left and right ends of the two first limiting components 41; there are two first gears 45, which are respectively installed on the outside of the rotating ends on the left and right sides of the double-end drive motor 43. The two first gears 45 mesh with the left and right first racks 44 respectively. The first gears 45 can convert the rotational torque of the motor into the linear feed power of the mounting base plate 42, so as to realize the overall stable feeding of the workpiece; wherein, a double-end moving part is provided on the front side of the top of the upper surface of the first limiting component 41, and an auxiliary fixing part 5 is provided on the upper surface of the first limiting component 41 and located on the rear side of the double-end moving part. The left and right moving ends of the double-end moving part are respectively provided with a measuring and positioning part 6 and a workpiece fixing part 7. The dual-end moving component includes: a second limiting component 46, a moving base plate 47, a fourth motor 48, a second rack 49, and a second gear 410; there are two second limiting components 46, which are fixedly installed on the front and rear sides of the upper surface of the mounting base plate 42 in the left and right directions, respectively. The second limiting components 46 adopt precision linear guide rail modules, and the guide rail profiles are made of hard aluminum alloy and are equipped with silent and wear-resistant sliding balls on the outside, which can provide lateral sliding guidance for the upper moving base plate 47 and limit the shaking and displacement of the moving base plate 47; there are two moving base plates 47, which are installed on the top of the left and right limiting ends of the front and rear second limiting components 46, respectively.There are two fourth motors 48, which are fixedly installed on the right side of the upper surface of the left and right movable base plates 47 respectively. The rotating end of the fourth motor 48 extends out of the lower surface of the movable base plate 47. The fourth motor 48 is electrically connected to the controller 8. The fourth motor 48 is a small high-precision stepper motor. The controller 8 independently controls the start / stop, speed, angle, and travel of the fourth motor 48, providing the power source for lateral displacement adjustment. The second rack 49 is installed on the top of the mounting base plate 42 in the left-right direction and is located inside the front and rear second limit components 46. There are two second gears 410, which are fixedly installed at the bottom of the rotating end of the left and right fourth motors 48 respectively. The second gears 410 mesh with the second rack 49, forming a vertical meshing transmission structure, which can convert the rotational power of the fourth motor 48 into the lateral linear displacement of the movable base plate 47, realizing precise left and right micro-adjustment. This adapts to the positioning and processing of square pipes of different lengths and diameters, improving the equipment's versatility.

[0024] As a preferred option, further, such as Figure 7As shown, the auxiliary fixing component 5 includes: a base 51, a third limiting component 52, an electromagnetic linear slide 53, a vertical plate 54, a bracket 55, a telescopic frame 56, a linear motor 57, a rotation module 58, and a clamping module 59; the base 51 is fixedly installed at the top of the mounting base plate 42 in the vertical direction and is located behind the second limiting component 46; the third limiting component 52 is fixedly installed below the top front side of the outer surface of the base 51 in the horizontal direction. The third limiting component 52 adopts a high-precision linear sliding guide rail module, the guide rail base is made of alloy steel with heat treatment, and is externally configured with a silent and wear-resistant ball slider to provide lateral displacement limiting constraint for the vertical plate 54, restricting the vertical swing and forward and backward displacement of the vertical plate 54 during operation; the electromagnetic linear slide 53... The electromagnetic linear slide 53 is fixedly installed on the top front side of the outer surface of the base 51 in the left-right direction. The electromagnetic linear slide 53 is electrically connected to the controller 8. The electromagnetic linear slide 53 is a high-precision electromagnetically driven linear sliding module with a built-in high-precision magnetic grating displacement sensor. It achieves frictionless and smooth sliding based on the electromagnetic drive principle, and can precisely control the lateral movement stroke and position of the vertical plate 54. The vertical plate 54 is fixedly installed on the front side of the limiting end of the third limiting component 52, and the front side of the moving end of the electromagnetic linear slide 53 is connected to the rear side of the vertical plate 54. The bracket 55 is fixedly installed on the top front side of the outer surface of the vertical plate 54 in the front-back direction. The telescopic frame 56 is fixedly installed on the top front side of the outer surface of the bracket 55 in the front-back direction. The telescopic frame 56 adopts a sleeve telescopic frame structure, relying on... The mechanical structure maintains parallelism during the telescopic process, ensuring that the pipe gripping position does not shift at an angle. A linear motor 57 is fixedly mounted on the outer surface of the bracket 55 along the front-to-back direction and located inside the telescopic frame 56. The telescopic end of the linear motor 57 is connected to the rear side of the telescopic end of the telescopic frame 56. The linear motor 57 is electrically connected to the controller 8. The linear motor 57 is a precision servo linear telescopic motor, providing stable power for the front-to-back telescopic movement of the telescopic frame 56, enabling precise and controllable adjustment of the feed distance of the clamping module 59. A rotating module 58 is fixedly mounted on the front side of the telescopic end of the telescopic frame 56. The rotating module 58 is electrically connected to the controller 8. The rotating module 58 uses a hollow servo rotary motor module, internally integrating... The high-precision reduction gear and angle encoder can receive electrical commands from the controller 8 to achieve precise positioning and rotation at any angle. It can provide multi-angle attitude adjustment for the end clamping module 59, adapting to the gripping conditions of square pipes with different placement angles and improving the versatility of the equipment. The clamping module 59 is fixedly installed on the front side of the rotating end of the rotating module 58. The clamping module 59 and the controller 8 are electrically connected. The clamping module 59 adopts a pneumatic clamping device structure. The clamping contact surface is equipped with a high-hardness wear-resistant and anti-slip soft pad, which can increase the clamping friction of the pipe while avoiding scratching the outer wall of the metal pipe. The clamping module 59 has the characteristics of controllable clamping force, rapid opening and closing response, and strong clamping stability. It can flexibly and stably grip the square pipes of the subframe of sanitation vehicles.

[0025] As a preferred option, further, such as Figure 8 As shown, the measuring and positioning component 6 includes: a square frame 61, an annular frame 62, a miniature telescopic module 63, a roller frame 64, a linear motion module 65, and a measuring sensor 66. The square frame 61 is fixedly installed on the top of one moving end of the double-ended moving component, and a circular groove running through the middle of the square frame 61 is formed. The annular frame 62 is embedded in the inner cavity of the groove in the middle of the square frame 61, and a square groove is formed in the middle of the annular frame 62. The annular frame 62 is made of alloy tempered steel through precision forging and is fixed to the inner cavity of the circular groove in the middle of the square frame 61 by an embedded assembly method. The outer ring contour fits the groove of the square frame 61. A square through groove is formed at the center of the annular frame 62, and the size of the square groove is adapted to the ring. The outer diameter specification of the square tube of the vehicle subframe diagonal brace is specified. The corners of the groove are rounded to reduce wear on the outer wall of the tube during material insertion. This provides primary circumferential limiting of the square tube, restricting radial sway and ensuring straightness during insertion. Four micro-telescopic modules 63 are installed at 90-degree intervals along the circumference on the left side of the outer surface of the annular frame 62, located outside the square groove. The micro-telescopic modules 63 are electrically connected to the controller 8. Each micro-telescopic module 63 employs a micro-servo electric telescopic push rod structure with an integrated high-precision displacement sensor, enabling minute linear telescopic adjustment. This, combined with the roller structure, provides auxiliary support and positioning for the outer side of the tube, adapting to different wall thicknesses. The square tube is fitted and limited to improve the stability of the tube clamping and fitting; there are four roller frames 64, which are fixedly installed on the upper surface of the mounting base 1 along the front-back direction and located at the left and right ends of the inner side of the two first limiting components 41. The roller frames 64 are equipped with silent and wear-resistant nylon rollers. The roller surface is smooth and has pressure-resistant and wear-resistant properties. The roller shaft is rotated by a precision bearing. It is mainly used to slide and support the square tube, reduce the sliding friction resistance during the tube transfer process, and bear the weight of the tube, reduce the deflection deformation in the middle section of the long tube, and improve the straightness of the tube during sawing; the linear movement module 65 is installed on the upper left side of the outer surface of the ring frame 62, and the linear movement module 65 and The controller 8 is electrically connected to the linear motion module 65, which adopts a miniature precision linear sliding module with built-in miniature ball slide rails and servo drive components. It can achieve small-amplitude, high-precision vertical displacement adjustment, providing an adjustable mounting carrier for the end measurement sensor 66. It can flexibly adapt to the distance measurement and detection height of pipes with different diameters, expanding the equipment's detection and adaptation range. The measurement sensor 66 is fixedly installed on the left side of the moving end of the linear motion module 65. The measurement sensor 66 is electrically connected to the controller 8. The measurement sensor 66 adopts a high-precision laser distance sensor, which can non-contactly collect dimensional data such as the remaining length of square pipes and the distance between cutting points in real time. It is suitable for high-precision dimensional detection of rigid metal pipes, providing accurate data support for the automated sawing process of the equipment.

[0026] As a preferred option, further, such as Figure 9As shown, the workpiece fixing component 7 includes: a fixed housing 71, a rotating seat 72, a fifth motor 73, a second transmission belt assembly 74, a support seat 75, an arc-shaped bracket 76, an annular cover 77, a rotating disk 78, a second limiting groove 79, an annular disk 710, a slot 711, a pressure block 712, a limiting pin 713, a limiting slide groove 714, a third slider 715, a third lead screw assembly 716, a sixth motor 717, a drive rod 718, and a connecting rod 719; the fixed housing 71 is fixedly installed on the top of the other moving end of the double-ended moving component; the rotating seat 72 is rotatably installed on the top of the outer surface of the fixed housing 71 via a bearing seat; the fifth motor 73 is fixedly installed in the inner cavity of the fixed housing 71, and the fifth motor 73... The rotating end extends beyond the fixed housing 71. The fifth motor 73 is electrically connected to the controller 8. The fifth motor 73 is a high-torque servo frequency converter motor with overload protection, adjustable speed, and self-locking braking characteristics. It can maintain a constant torque output for a long time, providing stable rotational power for the overall angle flipping of the workpiece, and is suitable for the rotation and angle adjustment of heavy square tubes. One end of the second transmission belt assembly 74 is fixedly installed on the rotating end of the fifth motor 73, and the other end of the second transmission belt assembly 74 is fixedly connected to the right end of the shaft of the rotating seat 72, which can transmit motor torque. The support seat 75 is fixedly installed on the left end of the rotating seat 72 in the vertical direction. There are two arc-shaped brackets 76. The upper and lower ends of the left side of the outer surface of the support base 75 are fixedly installed respectively. The arc-shaped bracket 76 has a rounded and fitted structure with a reserved arc-shaped movable groove inside, which is used to axially limit and move the rotating disk 78, constrain the degree of freedom of the rotating disk 78, and ensure that the rotating disk 78 rotates smoothly along the predetermined trajectory. The annular cover 77 is fixedly installed on the left side of the outer surface of the upper and lower arc-shaped brackets 76 in the vertical direction. The annular cover 77 has a circular slot that runs through the left and right sides in the middle. There are two rotating disks 78. The two rotating disks 78 are respectively movably engaged with the left and right ends of the inner side of the upper and lower arc-shaped brackets 76. The rotating disks 78 have a circular slot that runs through the left and right sides in the middle, and the rotating disks 78 can move inside the arc-shaped brackets 76. The limited-angle rotational motion is used to cooperate with the limiting pin 713 to complete the power transmission and provide a mechanical transmission basis for the circumferential clamping structure; there are two sets of second limiting grooves 79, with two second limiting grooves 79 in each set. The two sets of second limiting grooves 79 are opened on the upper and lower sides of the left and right rotating disks 78 in the front and back directions, and the groove walls of the second limiting grooves 79 are smooth and wear-resistant. The groove body follows the rotation trajectory of the rotating disk 78, which can slide and limit the limiting pin 713, converting the rotational displacement of the rotating disk 78 into radial thrust on the limiting pin 713, realizing the directional transmission of mechanical power; the annular disk 710 is fixedly installed on the inner side of the upper and lower arc-shaped brackets 76 and is located on the inner side of the left and right rotating disks 78;There are four slots 711, with two slots of four slots 711 arranged at 90-degree intervals around the sidewall of the annular disk 710. The outer sides of the inner cavities of the upper and lower slots 711 on the left and right sides communicate with the inner cavities of the two sets of second limiting grooves 79 on the left and right sides, respectively. The slots 711 are straight limiting grooves with smooth interiors and no burrs. They are used to radially slide and constrain the pressure block 712, limiting the pressure block 712 to only perform the gathering and opening actions radially, preventing the pressure block 712 from shifting or jamming, and ensuring the synchronization of the clamping action. There are four pressure blocks 712, which are respectively inserted into the inner cavities of the four slots 711. The inner clamping surfaces of the pressure blocks 712 are treated with anti-slip hardening, allowing direct contact with the surface. The outer wall of the tube is pressurized and clamped, and the tube is automatically centered and positioned by circumferential synchronous gathering action; there are two sets of limit pins 713, with two limit pins 713 in each set. The two sets of limit pins 713 are installed on the left and right sides of the outer surface of the upper and lower pressure blocks 712 respectively. The limit pins 713 extend out of the inner cavity of the slot 711 and are inserted into the inner cavity of the second limit groove 79; the limit slide groove 714 is opened in the upper left side of the outer surface of the support base 75 in the vertical direction. The groove body of the limit slide groove 714 is precision milled, and the inside is flat and smooth. The limit slide groove 714 provides vertical precision guidance for the third slider 715, ensuring that the third slider 715 can only perform reciprocating linear motion in the vertical direction; the third slider 715 is adapted to be inserted into the limit The third slider 715 extends outward from the inner cavity of the limiting slide groove 714 on its left side. The screw of the third lead screw assembly 716 is positioned vertically within the inner cavity of the limiting slide groove 714, and the screw nut of the third lead screw assembly 716 is connected to the interior of the third slider 715. The sixth motor 717 is fixedly mounted on the top of the outer surface of the support base 75. The rotating end of the sixth motor 717 extends into the inner cavity of the limiting slide groove 714 and is fixedly connected to the top of the screw shaft of the third lead screw assembly 716. The sixth motor 717 is electrically connected to the controller 8. The sixth motor 717 is a small servo geared motor, which features low speed and high torque, precise rotation angle, and smooth start and stop, and can accurately control the third lead screw assembly. The number of rotations of the lead screw 716; the drive rod 718 is rotatably mounted on the left side of the outer surface of the third slider 715 via a rotating shaft in the front-to-back direction; there are two connecting rods 719, one end of which is rotatably mounted on the front and rear ends of the right side of the drive rod 718 via a rotating shaft, and the other ends of which are rotatably connected to the front and rear ends of the outer sides of the left and right rotating disks 78 via rotating shafts. The connecting rods 719 and the rotating disks 78 form a symmetrical linkage transmission structure, which can evenly transmit the swing thrust of the drive rod 718 to the left and right rotating disks 78, causing the two sets of rotating disks 78 to rotate synchronously and at the same angle, ensuring the consistency of clamping motion, and further improving the centering and clamping accuracy and structural stability of the square tube.

[0027] The working principle is as follows: Step 1: The staff first horizontally inserts the square tubes used to process the diagonal braces of the subframe of the sanitation vehicle into the square groove of the annular frame 62 in the left and right direction, so that the right end of the square tube passes through the circular slot in the middle of the annular cover 77 and extends into the inner cavity of the annular disc 710, thus completing the initial placement and positioning of the tubes. Step 2: The operator starts the controller 8, which is then activated by the pre-set control program. The sixth motor 717, limit pin 713, and miniature telescopic module 63 are then activated. The sixth motor 717 drives the internal screw of the third lead screw assembly 716 to rotate. Based on the screw-nut transmission principle, this drives the third slider 715 to slide stably vertically along the inner cavity of the limit groove 714. During its upward movement, the third slider 715 drives the drive rod 718 to move synchronously. The drive rod 718 then pulls the two sets of connecting rods 719 to produce... The angle swing causes the other end of the connecting rod 719 to drive the left and right rotating disks 78 to rotate synchronously inside the upper and lower arc brackets 76. During the rotation of the rotating disk 78, the second limiting groove 79 of the disk itself squeezes the limiting pin 713, converting the rotational mechanical energy into radial extrusion force, and transmitting it to the four sets of pressure blocks 712 arranged in the circumferential direction. This causes the pressure blocks 712 to synchronously and radially converge along the inner cavity of the slot 711, thereby automatically centering, aligning and rigidly clamping the square tube inside the annular disk 710. Step 3: The fifth motor 73 operates and drives the second transmission belt assembly 74 to complete power transmission, causing the rotating seat 72 and the support seat 75 to rotate axially, so that the square tube that is clamped and fixed follows the annular disc 710 to complete the angle flip and adjust to the processing tilt angle required by the process. Then, the four micro telescopic modules 63 extend outward synchronously, pushing the roller frame 64 to move closer to the outer wall of the tube, so that the rollers inside the roller frame 64 fit against the outer surface of the tube to form an auxiliary support structure, effectively offsetting the deflection deformation caused by the weight of the tube and improving the overall stability of the tube in the subsequent processing process. Step 4: After the pipe is securely clamped, the controller 8 activates the linear motion module 65, the measuring sensor 66, and the fourth motor 48 in sequence through the built-in program. The linear motion module 65 drives the micro telescopic module 63 to make vertical fine-tuning displacement, so that the measuring sensor 66 is close to the area of ​​the pipe to be measured, so that the measuring sensor 66 can collect the processing length data of the square pipe in real time and transmit the detection signal to the controller 8 in real time. The controller 8 uses the built-in calculation algorithm to compare the preset processing parameters and automatically generate the coordinates of the cutting point. Step 5: The fourth motor 48 drives the second gear 410 to rotate. Utilizing the meshing transmission structure of the second gear 410 and the second rack 49, the moving base plate 47 is driven to complete the left and right horizontal sliding under the limiting constraint of the second limiting component 46. Simultaneously, the moving base plates 47 on both sides drive the measuring and positioning component 6 and the workpiece fixing component 7 to perform overall displacement. The measuring and positioning component 6 relies on the internal roller frame 64 to achieve the sliding of the outer side of the tube. With the help of sensor data, the cutting point is calibrated. At the same time, the workpiece fixing component 7 drives the square tube that is clamped and fixed to achieve horizontal feeding and sliding along the inside of the measuring and positioning component 6, so as to realize the automated and orderly feeding of the tube. Step 6: After the pipe length measurement and cutting point calibration process is completed, the controller 8 retrieves the preset transfer program and sequentially starts the electromagnetic linear slide 53, linear motor 57, clamping module 59 and double-end drive motor 43. The electromagnetic linear slide 53 drives the vertical plate 54 to move horizontally left and right under the guidance and limiting action of the third limit component 52, which drives the end clamping module 59 to move horizontally to the pipe processing reserved position on the left side of the measurement and positioning component 6. The linear motor 57 extends and pushes the telescopic frame 56 to complete the axial extension. With the angle fine adjustment function of the rotation module 58, the clamping module 59 is pushed to the pipe gripping point. The clamping module 59 starts and clamps and fixes the end of the pipe, completing the workpiece gripping operation. Step 7: After the gripping is completed, the double-end drive motor 43 drives the first gears 45 on the left and right sides to mesh and rotate synchronously. With the power support of the first rack 44, the mounting base plate 42 is pushed forward smoothly under the limiting guidance of the two sets of first limiting components 41 on the left and right sides, so that the measuring positioning component 6, the workpiece fixing component 7 and the clamped and fixed pipe are transferred as a whole to the cutting processing station behind the cutting component 3. Step 8: After the pipe is transferred to the designated cutting station, the controller 8 controls the horizontal moving module 21, the vertical moving module 22, the second motor 317, the third motor 321 and the first motor 36 to start in sequence according to the previously calibrated cutting coordinates. The horizontal moving module 21 drives the vertical moving module 22 to complete the left and right lateral displacement. The vertical moving module 22 drives the cutting component 3 to achieve the front and back longitudinal sliding. The planar precise alignment of the sawing mechanism is completed through the dual-axis linkage, so that the cutting component 3 moves to the front of the preset cutting position of the pipe. Step 9: The second motor 317 drives the internal screw screw of the second lead screw assembly 316 to rotate. The internal screw nut of the second lead screw assembly 316 drives the second limit slider 318 to slide vertically down along the inner cavity of the slide frame 315. During the descent, the second support rod 319 is pulled to generate an angle deflection. Relying on the mechanical thrust of the second support rod 319, the rotating plate 314 is pushed to flip backward with the fixed seat 313 as the rotation fulcrum, so that the saw blade 320 penetrates the sealing curtain 32 and extends out of the housing, completing the feeding of the saw blade 320. The third motor 321 outputs power and drives the first transmission belt assembly 322 to rotate. Through the belt transmission, the saw blade 320 is driven to rotate at high speed, and the pipe end on the left side of the measuring and positioning component 6 is vertically cut off to form a pipe blank that meets the specifications and dimensions. Step 10: After the straight cutting process is completed, the first motors 36 on the left and right sides operate synchronously and drive the first lead screw assembly 34 at the corresponding positions. The lead screw nut of the first lead screw assembly 34 drives the slider seat 35 to move laterally along the guide rail frame 33. The slider seat 35 drives the upper and lower sets of first support rods 37 to move relative to each other. During the displacement process, the first support rod 37 changes the position of the cross hinge center point of the two sets of first support rods 37 by relying on the sliding cooperation between its own first limiting groove 39 and the limiting shaft 310. This pushes the connecting frame 38 to deflect left and right, thereby adjusting the tilt angle of the rear saw blade 320. Through angle adjustment, the saw blade 320 cuts the left and right ends of the pipe blank at a 45° angle, and finally completes the integrated processing operation of the 45° bevel at both ends of the square pipe of the sanitation vehicle subframe.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sawing device for processing metal parts of sanitation vehicles, characterized in that, include: Install the base frame (1); The sawing mechanism (2) is located on the top front side of the mounting base (1); The workpiece transfer mechanism (4) is located on the top rear side of the mounting base (1); The controller (8) is mounted on the top left front of the mounting base (1) via a bracket; The chip collection hopper (9) is embedded inside the mounting base (1) and located below the rear side of the sawing mechanism (2); The sawing mechanism (2) includes: A horizontal moving module (21) is fixedly installed on the front top of the mounting base (1) in the left-right direction, and the horizontal moving module (21) is electrically connected to the controller (8); The longitudinal moving module (22) is fixedly installed on the top of the moving end of the horizontal moving module (21) in the front-back direction, and the longitudinal moving module (22) is electrically connected to the controller (8); The cutting component (3) is located at the top of the moving end of the longitudinal moving module (22).

2. The sawing device for processing metal parts of sanitation vehicles according to claim 1, characterized in that, The cutting component (3) includes: The outer casing (31) is fixedly installed on the upper surface of the moving end of the longitudinal moving module (22); The sealing curtain (32) is embedded in the through groove opened on the rear side of the inner cavity of the outer shell (31) of the box along the vertical direction; An angle adjustment unit is provided at both the upper and lower ends of the front side of the inner shell (31), and an execution unit is provided at the rear side of the angle adjustment unit.

3. A sawing device for processing metal parts of sanitation vehicles according to claim 2, characterized in that, The angle adjustment unit includes: The guide rail bracket (33) is two in number, and the two guide rail brackets (33) are respectively installed in the inner cavity of the outer shell (31) of the box; The first lead screw assembly (34) has two components, and the lead screws of the two first lead screw assemblies (34) are respectively installed on the inner side of the left and right guide rail frames (33); Slider seat (35), there are two slider seats (35), the two slider seats (35) are respectively sleeved on the outside of the left and right guide rail frames (33), and the inner side of the two slider seats (35) is respectively connected to the screw nuts of the left and right first screw assemblies (34); The first motor (36) has two motors (36). The two motors (36) are respectively installed on the outside of the left and right guide rails (33). The rotating ends of the two motors (36) extend into the inside of the left and right guide rails (33). The first motor (36) is electrically connected to the controller (8). The first support rod (37) has two sets, with two first support rods (37) in each set. The two sets of first support rods (37) are respectively installed on the upper and lower ends of the outer side of the left and right slider seats (35) by rotating shafts. The two sets of first support rods (37) are arranged in an X-shape in the inner and outer directions. The connecting frame (38) is rotatably mounted on the inner side of the other end of the upper and lower sets of first support rods (37) via a pivot in the left and right direction; The first limiting groove (39) has two sets, with two sets of first limiting grooves (39) in each set. The two sets of first limiting grooves (39) are respectively opened vertically through the middle of the two sets of first support rods (37). The limiting shaft (310) is engaged in the inner cavity of the two sets of the first limiting grooves (39) in the up and down direction; Limiting cap (311), there are two limiting caps (311), and the two limiting caps (311) are respectively installed at the upper and lower ends of the limiting shaft (310).

4. A sawing device for processing metal parts of sanitation vehicles according to claim 3, characterized in that, The execution unit includes: Mounting plate (312) is fixedly installed on the rear end of the outer surface of the connecting bracket (38) in the upper and lower angle adjustment units along the vertical direction; The number of fixed seats (313) is two, and the two fixed seats (313) are respectively fixedly installed on the left and right sides of the middle of the bottom end of the outer surface of the mounting plate (312); The rotating plate (314) is rotatably mounted on the inner side of the two fixed seats (313) on the left and right sides via a rotating shaft in the up and down direction; The slide rail (315) is fixedly installed in the middle of the rear top of the outer surface of the mounting plate (312) in the vertical direction; The second lead screw assembly (316) has its lead screw arranged inside the slide frame (315) in the vertical direction; The second motor (317) is fixedly installed on the top center of the outer surface of the mounting plate (312) by a bracket. The bottom of the rotating end of the second motor (317) is fixedly connected to the top of the screw shaft of the second lead screw assembly (316). The second motor (317) and the controller (8) are electrically connected. The second limiting slider (318) is inserted into the inside of the slide frame (315), and the inside of the second limiting slider (318) is connected to the screw nut of the second screw assembly (316); The second support rod (319) is rotatably mounted on the upper rear side of the outer surface of the second limiting slider (318) via a rotating shaft seat, and the other end of the second support rod (319) is rotatably connected to the upper front side of the outer surface of the rotating plate (314) via a rotating shaft seat. The saw blade (320) is rotatably mounted above the rear side of the outer surface of the rotating plate (314) via a pivot seat. The exterior of the saw blade (320) extends from the inside of the sealing curtain (32) to the exterior of the housing shell (31). The third motor (321) is mounted on the lower rear side of the outer surface of the rotating plate (314) via a bracket, and the third motor (321) is electrically connected to the controller (8); The first transmission belt assembly (322) has a pulley at one end fixedly installed on the right side of the rotating end of the third motor (321), and the pulley at the other end of the first transmission belt assembly (322) is externally connected to the shaft key of the saw blade (320).

5. A sawing device for processing metal parts of sanitation vehicles according to claim 4, characterized in that, The workpiece transfer mechanism (4) includes: The first limiting component (41) has two components, and the two first limiting components (41) are fixedly installed on the left and right sides of the upper surface of the mounting base (1) in the front-back direction respectively. The mounting base plate (42) is installed on the top of the limiting ends of the two first limiting components (41) on the left and right sides; A dual-end drive motor (43) is fixedly installed on the middle rear side of the upper surface of the mounting base plate (42) by a bracket, and the dual-end drive motor (43) is electrically connected to the controller (8); The first rack (44) has two racks, and the two racks (44) are fixedly installed on the upper surface of the mounting base (1) in the front-back direction, and are located at the left and right ends inside the two first limiting components (41). The first gear (45) has two components. The two first gears (45) are respectively installed on the outside of the rotating ends on the left and right sides of the double-ended drive motor (43). The two first gears (45) on the left and right sides respectively mesh with the two first racks (44) on the left and right sides.

6. A sawing device for processing metal parts of sanitation vehicles according to claim 5, characterized in that, A double-ended moving component is provided on the front side of the top end of the upper surface of the first limiting component (41), and an auxiliary fixing component (5) is provided on the upper surface of the first limiting component (41) and on the rear side of the double-ended moving component. A measuring positioning component (6) and a workpiece fixing component (7) are respectively provided on the left and right moving ends of the double-ended moving component.

7. A sawing device for processing metal parts of sanitation vehicles according to claim 6, characterized in that, The measuring and positioning component (6) includes: A square frame (61) is fixedly installed on the top of one side of the moving end of the double-ended moving component, and a circular groove that runs through the middle of the square frame (61) is provided. An annular frame (62) is embedded in the cavity of the central groove of the square frame (61), and the annular frame (62) has a square groove in the middle. The number of miniature telescopic modules (63) is four. The four miniature telescopic modules (63) are installed on the left side of the outer surface of the ring frame (62) at a circumferential interval of ninety degrees and are located on the outside of the square groove. The miniature telescopic modules (63) and the controller (8) are electrically connected. Roller frame (64), the number of roller frames (64) is four, the four roller frames (64) are fixedly installed on the upper surface of the mounting base (1) in the front-back direction, and are located at the left and right ends inside the two first limiting components (41); A linear motion module (65) is installed on the upper left side of the outer surface of the ring frame (62), and the linear motion module (65) is electrically connected to the controller (8); A measuring sensor (66) is fixedly installed on the left side of the moving end of the linear motion module (65), and the measuring sensor (66) is electrically connected to the controller (8).

8. A sawing device for processing metal parts of sanitation vehicles according to claim 7, characterized in that, The workpiece fixing component (7) includes: A fixed housing (71) is fixedly installed on the top of the other moving end of the double-ended moving component; The rotating seat (72) is rotatably mounted on the top of the outer surface of the fixed housing (71) via a bearing seat; The fifth motor (73) is fixedly installed in the inner cavity of the fixed housing (71), and the rotating end of the fifth motor (73) extends out of the outside of the fixed housing (71). The fifth motor (73) is electrically connected to the controller (8). The second transmission belt assembly (74) has a pulley at one end fixedly installed on the rotating end of the fifth motor (73), and the pulley at the other end of the second transmission belt assembly (74) is fixedly connected to the right end of the shaft of the rotating seat (72). The support base (75) is fixedly installed at the left end of the rotating base (72) in the vertical direction; Arc-shaped bracket (76), the number of arc-shaped brackets (76) is two, and the two arc-shaped brackets (76) are respectively fixedly installed on the lower left side of the outer surface of the support base (75) at the upper and lower ends; An annular cover (77) is fixedly installed on the left side of the outer surface of the two upper and lower arc-shaped brackets (76) along the vertical direction. A circular slot with a through-hole is opened in the middle of the annular cover (77).

9. A sawing device for processing metal parts of sanitation vehicles according to claim 8, characterized in that, The workpiece fixing component (7) also includes: Rotating disk (78), there are two rotating disks (78), the two rotating disks (78) are respectively movably engaged on the left and right ends of the inner side of the upper and lower arc brackets (76), and a circular slot hole that runs through the left and right is opened in the middle of the rotating disk (78). The second limiting groove (79) has two sets, with two sets of the second limiting groove (79) in each set. The two sets of the second limiting groove (79) are opened on the upper and lower sides of the two rotating disks (78) in the left and right directions. The annular disk (710) is fixedly installed on the inner side of the upper and lower arc-shaped brackets (76) and located on the inner side of the left and right rotating disks (78); The number of slots (711) is four, and the number of four slots (711) is two. The four slots (711) are opened at a circumferential interval of ninety degrees on the side wall of the annular disk (710). The outer side of the inner cavity of the upper and lower slots (711) on the left and right sides is connected to the inner cavity of the two sets of second limiting grooves (79) on the left and right sides respectively. Four pressure blocks (712) are provided, and the four pressure blocks (712) are respectively inserted into the inner cavities of the four slots (711); The limiting pins (713) are in two sets, with two limiting pins (713) in each set. The two sets of limiting pins (713) are respectively installed on the left and right sides of the outer surface of the upper and lower pressure blocks (712). The limiting pins (713) extend out of the inner cavity of the slot (711) and are inserted into the inner cavity of the second limiting groove (79). A limiting groove (714) is formed on the upper left side of the outer surface of the support base (75) in the vertical direction; The third slider (715) is adapted to be inserted into the inner cavity of the limiting slide groove (714), and the left side of the third slider (715) extends out of the limiting slide groove (714). The third lead screw assembly (716) has a lead screw rod arranged in the upper and lower direction in the inner cavity of the limiting slide groove (714), and the lead screw nut of the third lead screw assembly (716) is connected to the interior of the third slider (715). The sixth motor (717) is fixedly installed on the top of the outer surface of the support base (75). The rotating end of the sixth motor (717) extends into the inner cavity of the limiting slide groove (714) and is fixedly connected to the top of the screw shaft of the third screw assembly (716). The sixth motor (717) is electrically connected to the controller (8). The drive rod (718) is rotatably mounted on the left side of the outer surface of the third slider (715) via a pivot in the front-back direction; Connecting rod (719), there are two connecting rods (719). One end of the two connecting rods (719) is rotatably installed at the front and rear ends of the right side of the drive rod (718) through a rotating shaft. The other end of the two connecting rods (719) is rotatably connected to the front and rear ends of the outer sides of the left and right rotating disks (78) through a rotating shaft.

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