Automatic lathe cutting device for hydraulic element production and processing

Abstract

The application discloses an automatic lathe cutting device for hydraulic element production and processing, and belongs to the technical field of hydraulic element cutting processing. The automatic lathe cutting device comprises a lathe main body, a lathe bed, a chuck rotatably assembled at one end of the lathe bed, a moving plate slidingly arranged on the lathe bed in a direction perpendicular to an axis of the chuck, a movable seat arranged on the top of the moving plate, a tool seat fixed on the movable seat and used for installing a turning tool, a supporting seat fixedly installed on the moving plate and located on one side of the movable seat close to the chuck, and a fixing ring fixedly installed on the top of the supporting seat and coaxially arranged with the chuck. The automatic lathe cutting device replaces the existing positioning mode of fixing and clamping a hydraulic piston rod by the chuck, shortens the distance between the turning tool and the position of the hydraulic piston rod, effectively suppresses the vibration generated in the cutting process of the hydraulic piston rod, and significantly suppresses the vibration generated in the cutting process under the working condition that the hydraulic piston rod extends to the outside of the chuck and has a large length.

Description

Technical Field

[0001] This invention relates to the field of hydraulic component cutting technology, and more specifically, to an automated lathe cutting device for the production and processing of hydraulic components. Background Technology

[0002] Hydraulic piston rods are core precision components of hydraulic systems. Their surface finish, roughness, and overall forming quality directly determine the sealing performance, operational stability, and service life of hydraulic equipment. Therefore, the precision requirements for cutting processes and equipment are extremely high. Automated lathe cutting devices used in the production and processing of hydraulic components are specialized automated equipment for the external cylindrical cutting and shaping of hydraulic piston rods. Relying on the chuck clamping and positioning and the tool holder feed cutting structure of the lathe body, it can achieve large-scale, automated precision machining of hydraulic piston rods. It is widely used in the mass production of various hydraulic rods and is a core processing equipment for the precision manufacturing of hydraulic components.

[0003] Currently, existing automated lathe cutting devices employ a chuck-based clamping and positioning method when machining hydraulic piston rods. Specifically, the end of the hydraulic piston rod is clamped and fixed by a chuck at the end of the lathe bed. The clamping force of the chuck positions and fixes the workpiece. Then, a sliding moving plate moves the cutting tool, and in conjunction with the rotation of the chuck, the outer diameter of the hydraulic piston rod is machined. This machining method is simple in structure and convenient to operate, meeting the basic machining requirements of conventional short-sized hydraulic piston rods, and is currently the mainstream technology for machining hydraulic piston rods on lathes.

[0004] However, during the machining of the hydraulic piston rod in the long-overhang condition of the aforementioned automated lathe cutting device, the hydraulic piston rod end is fixed in a single position by the chuck. The distance between the cutting tool and the chuck positioning support point is relatively large, causing the workpiece cutting end to be suspended in the air, resulting in a significant decrease in overall rigidity. During high-speed cutting, the suspended hydraulic piston rod is prone to high-frequency vibration, which can easily lead to relative displacement between the cutting tool and the hydraulic piston rod workpiece. This results in vibration marks and grooves on the workpiece surface, directly causing a deterioration in the workpiece surface roughness and severely reducing the machining accuracy and overall machining quality of the hydraulic piston rod.

[0005] In view of this, we propose an automated lathe cutting device for the production and processing of hydraulic components. Summary of the Invention

[0006] Technical problems to be solved The purpose of this invention is to provide an automated lathe cutting device for the production and processing of hydraulic components, thereby solving the technical problems mentioned in the background art.

[0007] Technical solution The present invention provides an automated lathe cutting device for the production and processing of hydraulic components, comprising: The lathe body has a bed, one end of which is rotatably fitted with a chuck. A movable plate is slidably arranged on the bed along a direction perpendicular to the axis of the chuck. A movable seat is provided on the top of the movable plate, and a tool holder is fixed on the movable seat. The tool holder is used to install a lathe tool. The support base is fixedly mounted on the movable plate and located on the side of the movable seat near the chuck; A fixed ring is fixedly installed on the top of the support base, and the fixed ring is coaxially arranged with the chuck. The chuck is equipped with a hydraulic piston rod that moves through the inside of the fixed ring. The fixing component has four mounting holes 1 arranged in a ring array on the outer side wall of the fixing ring. The fixing component includes four fixing seats that are movably inserted through the mounting holes 1. Each of the four fixing seats has a mounting hole 2 on the side that is close to each other. A fixing post is slidably connected in the mounting hole 2. A universal ball is installed at the end of the fixing post that extends to the outside of the fixing seat. The drive assembly is mounted on the fixed ring and connected to all four fixed seats. The drive assembly is used to drive the four fixed seats to slide on the fixed ring so that the four fixed seats move closer or further apart from each other. The pressure detection component is installed in the second mounting hole and connected to the fixed column. When the universal ball abuts against the side wall of the hydraulic piston rod, the pressure detection component outputs a detection signal to control the drive component to stop working.

[0008] Preferably, the drive assembly includes a drive ring rotatably mounted on the outer wall of the fixed ring. The drive ring is located on the side of the mounting hole one near the chuck. The drive ring has four guide holes arranged in a ring array, each corresponding to one of the four mounting holes. The guide holes are inclined, and cylinders are slidably connected inside the guide holes. The four cylinders are fixedly connected to the four fixed seats respectively. An internal gear ring is coaxially fixedly connected to the side of the drive ring away from the mounting hole one. A motor is fixedly mounted on the fixed ring, and a gear that meshes with the internal gear ring is fixedly mounted on the output shaft of the motor.

[0009] Preferably, the pressure detection assembly includes a mounting block installed in the second mounting hole, a connecting spring fixedly connected to one side of the mounting block, a connecting block slidably connected to the other end of the connecting spring and the inner sidewall of the second mounting hole, a pressure sensor that fits against the connecting block fixedly installed on the mounting block and located inside the connecting spring, and a fixing post fixedly connected to the connecting block.

[0010] Preferably, the mounting block is slidably connected to the inner wall of the second mounting hole, and the fixing seat is equipped with an adjustment mechanism connected to the mounting block, which is used to drive the mounting block to slide in the direction of the second mounting hole towards the connecting block; The adjustment mechanism includes a pushing component installed in the second mounting hole and connected to the mounting block. An adjustment component extending into the second mounting hole is installed on the fixed base, which is used to drive the pushing component to move within the second mounting hole so that the mounting block slides toward the connecting block.

[0011] Preferably, the pushing assembly includes a piston plate slidably connected within the second mounting hole. The piston plate is located on the side of the mounting block away from the connecting block, and the outer sidewall of the piston plate is in contact with the inner sidewall of the second mounting hole. A pushing rod is fixedly installed on the side of the piston plate near the mounting block, and the pushing rod is fixedly connected to the mounting block.

[0012] Preferably, the adjustment assembly includes an air intake pipe that passes through and is fixed to the mounting base. The connection between the air intake pipe and the mounting base is located on the side of the piston plate away from the mounting block. A solenoid valve is fixedly installed on the air intake pipe.

[0013] Preferably, the pushing assembly further includes a fixing plate movably sleeved outside the pushing rod, and the fixing plate is fixedly connected to the fixing seat. A resisting spring sleeved outside the pushing rod is installed on the opposite side of the fixing plate and the piston plate. When the resisting spring is in its natural state, the mounting block is in contact with the fixing plate.

[0014] Preferably, four sets of spray cleaning components are arranged in a ring array on the inner side wall of the fixed ring and on the side of the mounting hole two near the chuck. The four sets of spray cleaning components correspond one-to-one with the four fixed seats, and the spray cleaning components are connected to the air inlet pipe installed on the fixed seats. The spray cleaning components are used to clean the surface of the hydraulic piston rod.

[0015] Preferably, the spray-pressure cleaning assembly includes an air-blowing plate installed on the inner wall of the fixed ring. The air-blowing plate has an air-guiding chamber. One end of the air-blowing plate near the hydraulic piston rod has a high-pressure exhaust port that communicates with the interior of the air-guiding chamber. A clearance through hole is provided on the fixed seat and on one side of the mounting hole two. An air-guiding pipe one is fixedly installed in the clearance through hole. One end of the air-guiding pipe one is connected to the air inlet pipe. The connection point between the air-guiding pipe one and the air inlet pipe is located on the side of the solenoid valve one away from the fixed seat. A solenoid valve two is fixedly installed on the air-guiding pipe one. The other end of the air-guiding pipe one is connected to the air-guiding pipe two. The other end of the air-guiding pipe two passes through the air-blowing plate and communicates with the air-guiding chamber.

[0016] Preferably, the hydraulic piston rod includes a first section and a second section, wherein the diameter of the first section is smaller than the diameter of the second section; The air blowing plate includes an outer plate fixedly installed on the inner wall of the fixed ring. A receiving cavity is opened on the side of the outer plate away from the fixed ring. An inner plate is slidably connected in the receiving cavity. The air guiding cavity and the high-pressure exhaust port are both opened on the inner plate. The second air guiding pipe is connected to the inner plate. The second air guiding pipe is a corrugated hose. An infrared ranging sensor is fixedly installed on the inner wall of the receiving cavity on the side away from the inner plate.

[0017] Beneficial effects One or more technical solutions provided in this invention have at least the following technical effects or advantages: 1. Through the design of the fixed ring and fixed assembly, when the hydraulic piston rod is being cut, the displacement of the moving plate drives the synchronous displacement of the fixed assembly through the support seat. The universal ball rolls along the surface of the hydraulic piston rod, so that the fixed assembly keeps the outer side of the cutting end of the hydraulic piston rod clamped and fixed. This replaces the existing positioning method of clamping and fixing the hydraulic piston rod with a chuck, shortens the distance between the cutting tool and the positioning point of the hydraulic piston rod, and thus effectively suppresses the vibration generated during the cutting of the hydraulic piston rod. In the case where the hydraulic piston rod extends a large length outside the chuck, the vibration generated during the cutting process can be significantly suppressed, thereby avoiding relative displacement between the cutting tool and the hydraulic piston rod, which would cause vibration marks on the machined surface, resulting in vibration lines and deterioration of the surface roughness of the hydraulic piston rod. This helps to improve the machining accuracy of the hydraulic piston rod, and thus helps to improve the machining quality of the hydraulic piston rod.

[0018] 2. Through the design of the push assembly, during the machining of the hydraulic piston rod, when the universal ball bearings in the fixed assembly wear down, the fit between the universal ball bearings and the hydraulic piston rod decreases. At this time, under the elastic force of the connecting spring, the contact force between the connecting block and the pressure sensor decreases, the pressure sensor detection signal changes, the measured pressure value decreases, and the detection signal is fed back to the main controller. At this time, the main controller controls the air pump to work and controls the solenoid valve to open. The air pump works and delivers gas through the air inlet pipe to the second mounting hole. The gas volume in the second mounting hole increases, thereby pushing the piston plate to move towards the fixed column. The push rod pushes the mounting block to move, thereby pushing the fixed column through the pressure sensor and the connecting block, causing the universal ball bearings to contact the hydraulic piston rod. Thus, after the universal ball bearings wear down, the positioning effect on the outer side of the cutting part of the hydraulic piston rod can be effectively improved. This further improves the vibration suppression effect of the hydraulic piston rod during the machining process and further improves the machining accuracy of the hydraulic piston rod.

[0019] 3. Utilizing a special design where the fixing assembly includes four fixed seats arranged in a circular array, with the fixing column movably penetrating through the mounting hole two, during the cutting of the hydraulic piston rod, the four universal balls roll along the surface of the hydraulic piston rod during the displacement of the moving plate. When the hydraulic piston rod exhibits slight bending deformation, the universal balls, upon reaching the bent position of the hydraulic piston rod, are affected by the bending point, causing friction with the universal balls. This results in a change in the detection signal of the corresponding pressure sensor, leading to an increase in the measured pressure value. The detection signal is then fed back to the main controller, which stops the lathe and activates the alarm to issue a warning, reminding personnel to investigate. This prevents substandard products from being mixed into the batch of processed products due to the cutting of hydraulic piston rods with bending deformation, thus reducing the quality of the batch and helping to improve the overall quality of the batch.

[0020] 4. By utilizing the special design of the fixing components, which include four fixing seats arranged in a circular array and whose fixing columns can move through the mounting holes, the surface roughness of the hydraulic piston rod can be detected after machining. This prevents unqualified products from being mixed into the batch of processed products and helps to ensure the overall quality of the processed hydraulic piston rod.

[0021] 5. Through the design of the fixed plate and the contact spring, when the universal ball bearings are replaced periodically, it is effectively avoided that the four universal ball bearings replaced due to the adjustment of the position of the worn universal ball bearings will result in different spacing between them and the fixed ring. This would prevent the hydraulic piston rod from tilting during subsequent clamping and positioning, thus causing machining errors in the hydraulic piston rod and further ensuring the machining accuracy of the hydraulic piston rod.

[0022] 6. By setting up a spray cleaning component, during the cutting process of the hydraulic piston rod, air jet cleaning can be achieved at the leading edge of the universal ball bearings in the rolling direction. This effectively prevents metal debris from adhering to the surface of the hydraulic piston rod, which could interfere with the pressure sensor's detection signal when the universal ball bearings come into contact with the metal debris, thus preventing penalties and improving the stability of the cutting operation. Similarly, after the hydraulic piston rod is cut, air jet cleaning of the debris adhering to the leading edge of the universal ball bearings in the rolling direction can improve the accuracy of surface roughness detection of the hydraulic piston rod after cutting.

[0023] 7. Utilizing the special design of the air-blowing plate, including the outer and inner plates, during the machining of a stepped hydraulic piston rod, the four universal balls of the fixed assembly transition from the outside of the first section to the outside of the second section of the hydraulic piston rod during the displacement of the moving plate. This prevents the four universal balls from being interfered with by the steps of the hydraulic piston rod as they roll along its surface, thus avoiding the cutting tool failing to reach the steps and causing incomplete cutting. This improves the machining accuracy of the hydraulic piston rod. Furthermore, by controlling the sliding distance of the fixed seat outward from the fixed ring to be equal to the displacement distance inward from the outer plate, the four universal balls of the fixed assembly transition to the outside of the second section of the hydraulic piston rod, ensuring that the fixed assembly continuously clamps and fixes the end of the hydraulic piston rod. This improves the machining accuracy of the hydraulic piston rod while suppressing vibrations generated during cutting, further enhancing the machining quality of the hydraulic piston rod. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the installation structure of the fixing component of the present invention.

[0026] Figure 3 This is a three-dimensional structural cross-sectional view of the fixing component of the present invention.

[0027] Figure 4 This is a schematic diagram of the installation structure of the drive component of the present invention.

[0028] Figure 5 For the present invention Figure 4 A magnified schematic diagram of a portion of the structure in section A.

[0029] Figure 6 This is an exploded view of the structure of the driving component of the present invention.

[0030] Figure 7 This is a schematic diagram of the pressure detection component of the present invention.

[0031] Figure 8 This is a schematic diagram of the installation structure of the infrared ranging sensor of the present invention.

[0032] Explanation of the labels in the diagram: 1. Lathe body; 11. Bed; 12. Chuck; 13. Moving plate; 14. Movable seat; 15. Tool holder; 16. Lathe tool; 2. Support seat; 3. Fixed ring; 31. Mounting hole one; 4. Hydraulic piston rod; 5. Fixing assembly; 51. Fixed seat; 511. Mounting hole two; 512. Clearance hole; 52. Fixed column; 53. Universal ball bearing; 6. Drive assembly; 61. Drive ring; 62. Guide hole; 63. Cylindrical ring; 64. Internal gear ring; 65. Electric motor; 66. Gear; 7. Adjustment mechanism; 71. Push assembly; 71 1. Piston plate; 712. Push rod; 713. Fixing plate; 714. Contact spring; 72. Adjustment assembly; 721. Air inlet pipe; 722. Solenoid valve one; 8. Spray pressure cleaning assembly; 81. Air blowing plate; 811. Outer plate; 812. Receiving cavity; 813. Inner plate; 82. High-pressure exhaust port; 83. Air guide pipe one; 84. Solenoid valve two; 85. Air guide pipe two; 9. Infrared ranging sensor; 10. Pressure detection assembly; 101. Mounting block; 102. Connecting spring; 103. Connecting block; 104. Pressure sensor. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0034] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Example 1, refer to Figures 1-8 As a first embodiment of the present invention, an automated lathe cutting device for manufacturing hydraulic components is provided, comprising: The lathe body 1 has a bed 11. A chuck 12 is rotatably mounted on one end of the bed 11. A movable plate 13 is slidably arranged on the bed 11 along a direction perpendicular to the axis of the chuck 12. A movable seat 14 is provided on the top of the movable plate 13. A tool holder 15 is fixed on the movable seat 14. The tool holder 15 is used to install a cutting tool 16. The mounting structures of the chuck 12, movable plate 13, movable seat 14, tool holder 15, and cutting tool 16 are all existing technologies and will not be described in detail here. Support 2 is fixedly installed on the movable plate 13 and located on the side of the movable seat 14 near the chuck 12; The fixed ring 3 is fixedly installed on the top of the support base 2, and the fixed ring 3 is coaxially arranged with the chuck 12. The chuck 12 is provided with a hydraulic piston rod 4 that moves through the inside of the fixed ring 3. The outer wall of the fixing component 5 and the fixing ring 3 is provided with four mounting holes 31 in a ring array. The fixing component 5 includes four fixing seats 51 that are movably inserted through the mounting holes 31. Each of the four fixing seats 51 has a mounting hole 511 on the side that is close to each other. A fixing post 52 is slidably connected in the mounting hole 511. A universal ball bearing 53 is installed at the end of the fixing post 52 that extends to the outside of the fixing seat 51. The drive assembly 6 is mounted on the fixed ring 3 and is connected to all four fixed seats 51. The drive assembly 6 is used to drive the four fixed seats 51 to slide on the fixed ring 3 so that the four fixed seats 51 move closer or further away from each other. The pressure detection component 10 is installed in the second mounting hole 511 and connected to the fixed column 52. When the universal ball 53 abuts against the side wall of the hydraulic piston rod 4, the pressure detection component 10 outputs a detection signal to control the drive component 6 to stop working. The drive assembly 6 includes a drive ring 61 rotatably mounted on the outer wall of the fixed ring 3. The drive ring 61 is located on the side of the mounting hole 31 near the chuck 12. The drive ring 61 has four guide holes 62 arranged in a ring array. The four guide holes 62 correspond one-to-one with the four mounting holes 31. The guide holes 62 are inclined. A cylinder 63 is slidably connected in the guide holes 62. The four cylinders 63 are fixedly connected to the four fixed seats 51 respectively. An internal gear ring 64 is coaxially fixedly connected to the side of the drive ring 61 away from the mounting hole 31. A motor 65 is fixedly mounted on the fixed ring 3. A gear 66 that meshes with the internal gear ring 64 is fixedly mounted on the output shaft of the motor 65. The pressure detection assembly 10 includes a mounting block 101 installed in the mounting hole 511. A connecting spring 102 is fixedly connected to one side of the mounting block 101, and a connecting block 103 that is slidably connected to the inner wall of the mounting hole 511 is fixedly connected to the other end of the connecting spring 102. A pressure sensor 104 that is in contact with the connecting block 103 is fixedly installed on the mounting block 101 and located inside the connecting spring 102. The pressure sensor 104 is communicatively connected to an external main controller, and the main controller is communicatively connected to an external alarm. The main controller has a preset pressure detection threshold for the pressure sensor 104, and the motor 65 is communicatively connected to the main controller. The fixing column 52 is fixedly connected to the connecting block 103. The mounting block 101 is slidably connected to the inner wall of the mounting hole 2 511. An adjustment mechanism 7 connected to the mounting block 101 is installed on the fixing seat 51, which is used to drive the mounting block 101 to slide in the mounting hole 2 511 towards the connecting block 103. The adjustment mechanism 7 includes a pushing component 71 installed in the second mounting hole 511 and connected to the mounting block 101. An adjustment component 72 extending into the second mounting hole 511 is installed on the fixed base 51. It is used to drive the pushing component 71 to move within the second mounting hole 511 so that the mounting block 101 slides toward the connecting block 103. The pushing assembly 71 includes a piston plate 711 slidably connected in the mounting hole 511. The piston plate 711 is located on the side of the mounting block 101 away from the connecting block 103, and the outer side wall of the piston plate 711 is in contact with the inner side wall of the mounting hole 511. A pushing rod 712 is fixedly installed on the side of the piston plate 711 near the mounting block 101, and the pushing rod 712 is fixedly connected to the mounting block 101.

[0037] The adjustment assembly 72 includes an air inlet pipe 721 that is fixed to the mounting base 51. The air inlet pipe 721 is connected to an external air pump, which is in communication with the main controller. The connection between the air inlet pipe 721 and the mounting base 51 is located on the side of the piston plate 711 away from the mounting block 101. A solenoid valve 722 is fixedly installed on the air inlet pipe 721 and is in communication with the main controller.

[0038] When machining the hydraulic piston rod 4, the hydraulic piston rod 4 to be machined passes through the inner side of the fixed ring 3, and the hydraulic piston rod 4 is clamped and pre-fixed using the chuck 12. All four solenoid valves 722 are closed, and then the motor 65 is controlled to operate. The output shaft of the motor 65 rotates, driving the gear 66 to rotate, which in turn drives the drive ring 61 to rotate outside the fixed ring 3 via the internal gear ring 64. This causes the cylinder 63 to slide along the guide hole 62 towards the side closer to the fixed ring 3. Thus, the four cylinders 63 respectively drive the four fixed seats 51 to slide synchronously towards the inner side of the fixed ring 3. The four fixed columns 52 drive the four universal balls 53 to contact the outer wall of the hydraulic piston rod 4. After the universal balls 53 contact the hydraulic piston rod 4, the force... Under the action of force, the connecting block 103 is pushed to move towards the mounting block 101 by the fixed column 52. The force detection signal of the pressure sensor 104 changes and is fed back to the main controller. When the detection signals of all four pressure sensors 104 change and are fed back to the main controller, the main controller controls the motor 65 to stop working, thereby achieving the effect of clamping and fixing the end of the hydraulic piston rod 4 by the fixing component 5. Then, the other end of the hydraulic piston rod 4 is clamped and fixed by the chuck 12. At this time, the tool holder 15 is moved by adjusting the movable seat 14, and the cutting tool 16 is adjusted to contact the hydraulic piston rod 4. At this time, the lathe body 1 is controlled to rotate the chuck 12 and the moving plate 13 is controlled to move, so that the hydraulic piston rod 4 can be cut. During this process, through the design of the fixing ring 3 and the fixing component 5, when the hydraulic piston rod 4 is being cut, the displacement of the moving plate 13 drives the fixing component 5 to move synchronously through the support seat 2. The universal ball 53 rolls along the surface of the hydraulic piston rod 4, so that the fixing component 5 keeps clamping and fixing the outer side of the cutting end of the hydraulic piston rod 4. This replaces the existing positioning method of clamping and fixing the hydraulic piston rod 4 through the chuck 12, shortens the distance between the cutting tool 16 and the positioning point of the hydraulic piston rod 4, and thus effectively suppresses the vibration generated during the cutting process of the hydraulic piston rod 4. In the case where the hydraulic piston rod 4 extends a large length to the outside of the chuck 12, the vibration generated during the cutting process can be significantly suppressed, thereby avoiding relative displacement between the cutting tool 16 and the hydraulic piston rod 4, which would cause vibration marks on the machined surface, resulting in vibration marks and poor surface roughness on the surface of the hydraulic piston rod 4. This helps to improve the machining accuracy of the hydraulic piston rod 4, and thus helps to improve the machining quality of the hydraulic piston rod 4. By designing the push assembly 71, during the machining of the hydraulic piston rod 4, when the universal ball bearing 53 in the fixed assembly 5 wears, the fit between the universal ball bearing 53 and the hydraulic piston rod 4 decreases. At this time, under the elastic force of the connecting spring 102, the contact force between the connecting block 103 and the pressure sensor 104 decreases, the detection signal of the pressure sensor 104 changes, the measured pressure value decreases, and the detection signal is fed back to the main controller. At this time, the main controller controls the air pump to work and controls the solenoid valve 722 to open. The air pump works to deliver gas through the air inlet pipe 721 to the mounting hole 511. The amount of gas in the mounting hole 511 increases, thereby pushing the piston. Plate 711 moves towards fixed post 52, pushing mounting block 101 to move via push rod 712. This, in turn, pushes fixed post 52 via pressure sensor 104 and connecting block 103, causing universal ball bearing 53 to contact hydraulic piston rod 4. This effectively improves the positioning effect on the outer side of the cutting area of ​​hydraulic piston rod 4 after universal ball bearing 53 wears down. This further enhances the vibration suppression effect of hydraulic piston rod 4 during the cutting process and improves the machining accuracy of hydraulic piston rod 4. When the pressure value detected by pressure sensor 104 reaches the corresponding pressure threshold preset in the main controller, the main controller controls the air pump and solenoid valve 722 to close.

[0039] Furthermore, utilizing the special design of the fixing component 5, which includes four fixing seats 51 arranged in a circular array and fixing columns 52 that movably penetrate through the mounting holes 511, during the cutting of the hydraulic piston rod 4, the four universal balls 53 roll along the surface of the hydraulic piston rod 4 during the displacement of the moving plate 13. When the hydraulic piston rod 4 has a slight bending deformation, when the universal balls 53 roll to the bending position of the hydraulic piston rod 4, they are affected by the bending point of the hydraulic piston rod 4 and come into contact with the universal balls 53, thereby causing the corresponding pressure sensor 104 to change the detection signal, the measured pressure value increases, and the detection signal is fed back to the main controller. The main controller then stops the lathe body 1 and controls the alarm to issue a warning, reminding the staff to check and prevent unqualified products produced by cutting the hydraulic piston rod 4 with bending deformation from being mixed into the batch of processed products, thus reducing the quality of the batch of products and helping to improve the overall quality of the batch of products. Furthermore, utilizing the special design of the fixing component 5, which includes four fixing seats 51 arranged in a circular array and fixing posts 52 that movably penetrate through the mounting holes 511, after the hydraulic piston rod 4 is machined, when the control moving plate 13 is moved away from the chuck 12, the fixing ring 3 is moved to the outer side of the end of the hydraulic piston rod 4. When the control motor 65 rotates the drive ring 61, the four fixing posts 52 drive the four universal balls 53 to abut against the outer wall of the hydraulic piston rod 4. Then, the control motor 65 stops working, and the control moving plate 13 is moved towards the chuck 12. The four universal balls 53 roll along the surface of the hydraulic piston rod 4. When the surface of the hydraulic piston rod 4 is smooth after machining, the four pressure sensors 10... 4. The detection signal does not change. When the surface of the hydraulic piston rod 4 after cutting shows vibration marks or deterioration in surface roughness, the four universal balls 53 roll along the surface of the hydraulic piston rod 4, which will cause the fixed column 52 to move within the mounting hole 2 511, thereby causing a change in the resistance force on the pressure sensor 104. The pressure sensor 104 will then show a change in signal, which will be fed back to the main controller. The main controller will stop the lathe body 1 and control the alarm to issue a warning, reminding the staff of the machining progress error of the hydraulic piston rod 4. This can achieve the purpose of detecting the surface roughness of the hydraulic piston rod 4 after cutting, avoiding the mixing of unqualified products into the batch of processed products, and helping to ensure the overall quality of the processed hydraulic piston rod 4.

[0040] Example 2, refer to Figures 1-8 This is the second embodiment of the present invention, which differs from the first embodiment in that: The pushing assembly 71 also includes a fixing plate 713 movably sleeved on the outside of the pushing rod 712, and the fixing plate 713 is fixedly connected to the fixing seat 51. A resisting spring 714 sleeved on the outside of the pushing rod 712 is installed on the opposite side of the fixing plate 713 and the piston plate 711. When the resisting spring 714 is in its natural state, the mounting block 101 is in contact with the fixing plate 713. The inner wall of the fixed ring 3 and the side of the mounting hole 2 511 near the chuck 12 are provided with four sets of spray cleaning components 8 in a ring array. The four sets of spray cleaning components 8 correspond one-to-one with the four fixed seats 51, and the spray cleaning components 8 are connected to the air inlet pipe 721 installed on the fixed seat 51. The spray cleaning components 8 are used to clean the surface of the hydraulic piston rod 4. The spray-pressure cleaning assembly 8 includes an air-blowing plate 81 installed on the inner wall of the fixed ring 3. The central axis of the air-blowing plate 81 is perpendicular to the central axis of the fixed ring 3. An air guide cavity is formed inside the air-blowing plate 81. A high-pressure exhaust port 82, which communicates with the interior of the air guide cavity, is formed at one end of the air-blowing plate 81 near the hydraulic piston rod 4. The cross-sectional width of the high-pressure exhaust port 82 is smaller than the cross-sectional width of the air guide cavity. A clearance through hole 512 is formed on the fixed seat 51 on one side of the mounting hole 511. An air guide tube 83 is fixedly installed inside the perforation 512. One end of the air guide tube 83 is connected to the air inlet pipe 721. The connection between the air guide tube 83 and the air inlet pipe 721 is located on the side of the solenoid valve 722 away from the fixed seat 51. A solenoid valve 84 is fixedly installed on the air guide tube 83. The solenoid valve 84 is connected to the main controller. The other end of the air guide tube 83 is connected to the air guide tube 85. The other end of the air guide tube 85 passes through the air blowing plate 81 and is connected to the air guide cavity.

[0041] Through the design of the fixed plate 713 and the contact spring 714, when the universal ball bearings 53 are replaced periodically, the control solenoid valve 722 is opened. At this time, the contact spring 714 pushes the piston plate 711 to move away from the fixed plate 713, thereby driving the mounting block 101 to reset and fit against the fixed plate 713 through the push rod 712. This allows the four universal ball bearings 53 to restore the initial distance between them and the fixed ring 3, thus effectively avoiding the situation where the distance between the four universal ball bearings 53 and the fixed ring 3 is different due to the adjustment of the position of the universal ball bearings 53 after wear. This would cause the hydraulic piston rod 4 to tilt when clamping and positioning it, resulting in machining errors in the hydraulic piston rod 4. This further ensures the machining accuracy of the hydraulic piston rod 4. By setting up the spray cleaning component 8, during the cutting process of the hydraulic piston rod 4, the solenoid valve 2 84 is opened, and the air pump continuously delivers gas into the air inlet pipe 721. The gas flows through the air inlet pipe 721, the air guide pipe 1 83, and the air guide pipe 2 85 into the air guide chamber, and is then discharged downwards through the high-pressure exhaust port 82 to the surface of the hydraulic piston rod 4. This achieves the effect of air jet cleaning at the front end of the universal ball bearing 53 in the rolling direction, effectively preventing metal debris from adhering to the surface of the hydraulic piston rod 4. This would prevent interference with the detection signal of the pressure sensor 104 when the universal ball bearing 53 comes into contact with the metal debris, thus avoiding a penalty situation and improving the processing stability of this cutting device. Similarly, after the hydraulic piston rod 4 is cut, air jet cleaning of the debris adhering to the front end of the universal ball bearing 53 in the rolling direction can improve the accuracy of surface roughness detection of the hydraulic piston rod 4 after cutting.

[0042] The remaining structure is the same as that in Example 1.

[0043] Example 3, referring to Figures 1-8This is the third embodiment of the present invention, which differs from the second embodiment in that: The hydraulic piston rod 4 includes a first section and a second section, wherein the diameter of the first section is smaller than the diameter of the second section; The air blowing plate 81 includes an outer plate 811 fixedly installed on the inner wall of the fixing ring 3. A receiving cavity 812 is opened on the side of the outer plate 811 away from the fixing ring 3. An inner plate 813 is slidably connected in the receiving cavity 812. The air guiding cavity and the high-pressure exhaust port 82 are both opened on the inner plate 813. The second air guiding pipe 85 is connected to the inner plate 813. The second air guiding pipe 85 is a corrugated hose. An infrared ranging sensor 9 is fixedly installed on the inner wall of the receiving cavity 812 away from the inner plate 813. The infrared ranging sensor 9 is communicatively connected to the main controller.

[0044] Utilizing the special design of the air-blowing plate 81, which includes an outer plate 811 and an inner plate 813, gas is discharged downwards through the high-pressure exhaust port 82 and blown onto the surface of the hydraulic piston rod 4. The high-pressure gas establishes a pressure field between the hydraulic piston rod 4 and the inner plate 813, thereby pushing the inner plate 813 to move inwards towards the inner side of the outer plate 811. The air guide pipe 85 deforms. During the machining process of the stepped hydraulic piston rod 4, when the inner plate 813 moves along the first section of the hydraulic piston rod 4 to above its second section, because the diameter of the first section is smaller than the diameter of the second section, under the pressure field established by the high-pressure gas, it pushes the inner plate... The inner plate 813 moves inward toward the outer plate 811, adjusting the distance between the inner plate 813 and the top of the second section. This ensures that when the inner plate 813 is above the second and first sections, the distance between the inner plate 813 and the top of the hydraulic piston rod 4 is the same. During this process, as the inner plate 813 moves inward toward the outer plate 811, the infrared distance sensor 9 detects the displacement distance of the inner plate 813 toward the outer plate 811 and sends it back to the main controller. The measured distance value is the height difference between the second and first sections of the hydraulic piston rod 4. When the infrared distance sensor 9 changes, the moving plate 13 moves a distance equal to the displacement of the universal ball bearing 5 toward the chuck 12. When the distance between the moving plate 13 and the inner plate 813 is reached, the main controller controls the motor 65 to work, causing the drive ring 61 to rotate outside the fixed ring 3, driving all four fixed seats 51 to slide outward from the fixed ring 3, so that the sliding distance of the fixed seats 51 outward from the fixed ring 3 is equal to the displacement distance inward from the outer plate 811. At this time, during the displacement process of the moving plate 13, the four universal balls 53 of the fixed assembly 5 can transition from the outer side of the first section of the hydraulic piston rod 4 to the outer side of the second section of the hydraulic piston rod 4, avoiding the rolling of the universal balls 53 at the step of the hydraulic piston rod 4 during the rolling of the four universal balls 53 along the surface of the hydraulic piston rod 4. Interference is caused, preventing the cutting tool 16 from moving to the step of the hydraulic piston rod 4, resulting in incomplete cutting. This improves the machining accuracy of the hydraulic piston rod 4. Furthermore, by controlling the sliding distance of the fixed seat 51 to the outside of the fixed ring 3 to be equal to the displacement distance to the inside of the outer sleeve plate 811, the four universal balls 53 of the fixed assembly 5 transition to the outside of the second section of the hydraulic piston rod 4. This allows the fixed assembly 5 to continuously clamp and fix the end of the hydraulic piston rod 4, thereby improving the machining accuracy of the hydraulic piston rod 4 while suppressing the vibration generated during the cutting process, and further improving the machining quality of the hydraulic piston rod 4.

[0045] The remaining structure is the same as that in Example 2.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated lathe cutting device for the production and processing of hydraulic components, characterized in that, include: The lathe body has a bed, one end of which is rotatably fitted with a chuck. A movable plate is slidably arranged on the bed along a direction perpendicular to the axis of the chuck. A movable seat is provided on the top of the movable plate, and a tool holder is fixed on the movable seat. The tool holder is used to install a lathe tool. The support base is fixedly mounted on the movable plate and located on the side of the movable seat near the chuck; A fixed ring is fixedly installed on the top of the support base, and the fixed ring is coaxially arranged with the chuck. The chuck is equipped with a hydraulic piston rod that moves through the inside of the fixed ring. The fixing component has four mounting holes 1 arranged in a ring array on the outer side wall of the fixing ring. The fixing component includes four fixing seats that are movably inserted through the mounting holes 1. Each of the four fixing seats has a mounting hole 2 on the side that is close to each other. A fixing post is slidably connected in the mounting hole 2. A universal ball is installed at the end of the fixing post that extends to the outside of the fixing seat. The drive assembly is mounted on the fixed ring and connected to all four fixed seats. The drive assembly is used to drive the four fixed seats to slide on the fixed ring so that the four fixed seats move closer or further apart from each other. The pressure detection component is installed in the second mounting hole and connected to the fixed column. When the universal ball abuts against the side wall of the hydraulic piston rod, the pressure detection component outputs a detection signal to control the drive component to stop working.

2. The automated lathe cutting device for manufacturing hydraulic components according to claim 1, characterized in that: The drive assembly includes a drive ring rotatably mounted on the outer wall of the fixed ring. The drive ring is located on the side of the mounting hole one near the chuck. The drive ring has four guide holes arranged in a ring array, each corresponding to one of the four mounting holes. The guide holes are inclined, and cylinders are slidably connected inside the guide holes. The four cylinders are fixedly connected to the four fixed seats respectively. An internal gear ring is coaxially fixed on the side of the drive ring away from the mounting hole one. A motor is fixedly mounted on the fixed ring, and a gear that meshes with the internal gear ring is fixedly mounted on the output shaft of the motor.

3. The automated lathe cutting device for manufacturing hydraulic components according to claim 2, characterized in that: The pressure detection assembly includes a mounting block installed in the second mounting hole. A connecting spring is fixedly connected to one side of the mounting block, and a connecting block that is slidably connected to the inner wall of the second mounting hole is fixedly connected to the other end of the connecting spring. A pressure sensor that fits against the connecting block is fixedly installed on the mounting block and located inside the connecting spring. A fixing post is fixedly connected to the connecting block.

4. The automated lathe cutting device for manufacturing hydraulic components according to claim 3, characterized in that: The mounting block is slidably connected to the inner wall of the second mounting hole. An adjustment mechanism connected to the mounting block is installed on the fixed seat, which is used to drive the mounting block to slide in the direction of the connecting block in the second mounting hole. The adjustment mechanism includes a pushing component installed in the second mounting hole and connected to the mounting block. An adjustment component extending into the second mounting hole is installed on the fixed base, which is used to drive the pushing component to move within the second mounting hole so that the mounting block slides toward the connecting block.

5. The automated lathe cutting device for manufacturing hydraulic components according to claim 4, characterized in that: The pushing assembly includes a piston plate slidably connected to the second mounting hole. The piston plate is located on the side of the mounting block away from the connecting block, and the outer side wall of the piston plate is in contact with the inner side wall of the second mounting hole. A pushing rod is fixedly installed on the side of the piston plate close to the mounting block, and the pushing rod is fixedly connected to the mounting block.

6. The automated lathe cutting device for manufacturing hydraulic components according to claim 4, characterized in that: The adjustment assembly includes an air intake pipe that passes through and is fixed to the mounting base. The connection between the air intake pipe and the mounting base is located on the side of the piston plate away from the mounting block. A solenoid valve is fixedly installed on the air intake pipe.

7. The automated lathe cutting device for manufacturing hydraulic components according to claim 5, characterized in that: The pushing assembly also includes a fixed plate that is movably sleeved on the outside of the pushing rod, and the fixed plate is fixedly connected to the fixed seat. A resisting spring that is sleeved on the outside of the pushing rod is installed on the opposite side of the fixed plate and the piston plate. When the resisting spring is in its natural state, the mounting block is in contact with the fixed plate.

8. The automated lathe cutting device for manufacturing hydraulic components according to claim 6, characterized in that: The inner wall of the fixed ring and the side of the mounting hole near the chuck are provided with four sets of spray cleaning components in a circular array. The four sets of spray cleaning components correspond one-to-one with the four fixed seats, and the spray cleaning components are connected to the air inlet pipe installed on the fixed seats. The spray cleaning components are used to clean the surface of the hydraulic piston rod.

9. The automated lathe cutting device for manufacturing hydraulic components according to claim 8, characterized in that: The spray-pressure cleaning assembly includes an air-blowing plate installed on the inner wall of the fixed ring. An air-guiding chamber is provided inside the air-blowing plate. A high-pressure exhaust port connected to the air-guiding chamber is provided at one end of the air-blowing plate near the hydraulic piston rod. A clearance through hole is provided on the fixed seat and on one side of the mounting hole two. An air-guiding pipe one is fixedly installed in the clearance through hole. One end of the air-guiding pipe one is connected to the air inlet pipe. The connection point between the air-guiding pipe one and the air inlet pipe is located on the side of the solenoid valve one away from the fixed seat. A solenoid valve two is fixedly installed on the air-guiding pipe one. The other end of the air-guiding pipe one is connected to the air-guiding pipe two. The other end of the air-guiding pipe two passes through the air-blowing plate and is connected to the air-guiding chamber.

10. The automated lathe cutting device for manufacturing hydraulic components according to claim 9, characterized in that: The hydraulic piston rod includes a first section and a second section, wherein the diameter of the first section is smaller than the diameter of the second section; The air blowing plate includes an outer plate fixedly installed on the inner wall of the fixed ring. A receiving cavity is opened on the side of the outer plate away from the fixed ring. An inner plate is slidably connected in the receiving cavity. The air guiding cavity and the high-pressure exhaust port are both opened on the inner plate. The second air guiding pipe is connected to the inner plate. The second air guiding pipe is a corrugated hose. An infrared ranging sensor is fixedly installed on the inner wall of the receiving cavity on the side away from the inner plate.

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