High-speed precise gear transmission type honing machining device for brake pump valve body

Abstract

The invention is suitable for the technical field of valve body gear honing, and provides a brake pump valve body high-speed precise gear transmission type honing machining device which comprises a numerical control honing machine tool body, an inner hole honing mechanism is arranged on the side edge of the numerical control honing machine tool body, and a machining cavity lower than the horizontal height of the numerical control honing machine tool body is formed in the middle of the numerical control honing machine tool body; the double-shaft precision displacement table is arranged in the processing cavity; the transmission block and the honing workbench are arranged at the moving end of the double-shaft precision displacement table; a group of self-adaptive clamping devices are symmetrically arranged on the honing workbench; through high-precision control, efficient cooling and monitoring and an environment-friendly cleaning technology, the honing machining precision, stability and efficiency of the brake pump valve body are remarkably improved, and stable machining of a workpiece is ensured through the honing workbench and the rotary power transmission system which are accurately controlled; a high-pressure atomizing nozzle enhances the cooling and flushing effects, and the machining quality is improved; the laser contourgraph and the acoustic emission sensor monitor and adjust machining parameters in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of valve body gear honing, and in particular relates to a high-speed precision gear transmission type honing processing device for a brake pump valve body. Background Art

[0002] With the rapid development of modern machinery manufacturing industry, the manufacturing precision and quality requirements of key parts such as brake pump valve bodies are increasing day by day. The traditional honing processing method has deficiencies in processing precision, efficiency and stability, and it is difficult to meet the manufacturing requirements of high-performance brake pump valve bodies. The specific problems are as follows:

[0003] 1. Insufficient positioning and motion control accuracy: Conventional honing equipment mostly uses manual or semi-automatic clamping, which is difficult to adapt to the geometric feature matching of complex valve bodies and complex inner cavities (such as spiral oil channels). Vibration during processing causes positioning reference deviation, resulting in poor consistency of inner cavity dimensions;

[0004] 2. Low cooling and chip removal efficiency: The traditional coolant spraying method has a limited coverage, local overheating can easily cause thermal deformation of the workpiece, and debris can easily remain in the processing area, scratching the processed surface;

[0005] 3. Lack of dynamic monitoring and adaptive adjustment: The processing parameters rely on preset experience values ​​and cannot respond to changes in the surface state of the workpiece in real time, resulting in frequent overcutting or undercutting;

[0006] 4. Environmental protection and equipment maintenance issues: Processing waste liquid and metal particles tend to accumulate inside the equipment, which not only corrodes components but also poses an environmental pollution risk. At the same time, harmful particles in the exhaust gas threaten the health of operators. Summary of the invention

[0007] The present invention provides a high-speed precision gear-driven honing processing device for a brake pump valve body, aiming to solve the problems of existing honing devices that rely on manual clamping, resulting in large positioning reference deviation, processing vibration and clamping deformation causing inner cavity size fluctuation exceeding tolerance; uneven coverage of coolant forms local temperature differences, resulting in thermal deformation; lack of dynamic monitoring feedback mechanism, preset parameters cannot adapt to real-time working conditions, and accumulation of waste liquid particles causes increased equipment failure rate.

[0008] The present invention is implemented as follows: a high-speed precision gear transmission honing processing device for a brake pump valve body comprises a CNC honing machine tool body, an inner hole honing mechanism is arranged on the side of the CNC honing machine tool body, and a processing cavity is opened in the middle thereof below its horizontal height;

[0009] A dual-axis precision translation stage disposed in the processing chamber;

[0010] A transmission block provided on the moving end of the dual-axis precision translation stage;

[0011] A honing table for valve body machining is provided on the transmission block;

[0012] A fixed ring is sleeved on the outer side of the transmission block, and an involute gear groove is arranged on the outer side thereof;

[0013] A servo motor is arranged outside the moving end of the dual-axis precision translation stage, and the output end of the servo motor is connected to a hardened gear pair through a key, and the hardened gear pair meshes with the gear groove to form a hardened tooth surface;

[0014] A set of adaptive clamping devices is symmetrically arranged on the honing workbench;

[0015] Wherein, the adaptive clamping device comprises:

[0016] A support vertical plate fixed to the honing table;

[0017] A hydraulic cylinder is arranged on the side of the supporting vertical plate opposite to the honing workbench table, and the end of the piston rod thereof is connected to a receiving frame;

[0018] A fastening plate is arranged outside the receiving frame, a shock absorbing spring is arranged between the fastening plate and the receiving frame, and a piezoelectric damper is embedded in the shock absorbing spring;

[0019] The fastening pad is arranged on the outside of the fastening plate, and the outer surface of the fastening pad is a bionic arc structure adapted to the side wall of the valve body, and a temperature compensation sheet is embedded in the fastening pad.

[0020] Preferably, the inner hole honing mechanism comprises:

[0021] A processing machine base arranged on the main table of the CNC honing machine tool;

[0022] A rotating shaft is rotatably matched on one side of the processing machine base opposite to the honing worktable, the end of which is connected to the honing head through an angular contact bearing, and the other end is connected to a hard-toothed gear.

[0023] Preferably, the inner hole honing mechanism further comprises:

[0024] The drive motor is arranged on the top side of the processing machine base, and the output end of the drive motor is connected to the bevel gear through a key, and the bevel gear is meshed with the hard tooth surface gear for transmission.

[0025] Preferably, a coolant delivery pipe is provided in the processing chamber, one end of the coolant delivery pipe is connected to an external high-pressure water source through a quick-release flange, and the other end is connected to a universal joint hose, which extends to the upper position of the honing workbench and is connected to a high-pressure atomizing nozzle.

[0026] Preferably, an annular liquid collecting trough is provided at the four corners of the processing chamber, and a V-shaped guide groove is provided inside the annular liquid collecting trough.

[0027] Preferably, an exhaust gas collecting hood is provided on the side of the CNC honing machine body opposite to the processing chamber, wherein a primary filter is built in, and one end of the exhaust gas collecting hood is connected to a vacuum pump through a conduit.

[0028] Preferably, an intelligent vibration monitoring module is integrated on the side wall of the processing machine base adjacent to the honing head, and the intelligent vibration monitoring module includes a laser profiler and an acoustic emission sensor.

[0029] Preferably, the outer surface of the fastening pad is provided with anti-skid grooves, and silicon carbide particles are embedded in the bottom of the grooves to form a wear-resistant composite coating.

[0030] Preferably, a drain pipe is provided on the main body of the CNC honing machine tool at a lower position of the liquid collecting tank.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] First, through the precise control of the dual-axis precision translation stage and the servo motor, the honing table can achieve precise movement in the horizontal direction of the XY axis and can perform precise rotational motion. Combined with the clamping plate with adjustable spacing and shock absorption, this high-precision positioning and rotation capability ensures that the brake pump valve body to be processed can be accurately placed and fixed, thereby maintaining a high degree of stability and precision during the processing. The honing head receives power from the drive motor through a stable rotational power transmission system, ensuring that the honing head can perform uniform and detailed processing of the workpiece at a constant pressure and speed, further improving the processing accuracy and stability.

[0033] Second: The high-pressure atomizing nozzle of the present invention sprays high-pressure water flow onto the workpiece surface in the form of atomization, which increases the coverage area and uniformity of the water flow and enhances the flushing and cooling effects of the water flow. This not only helps to remove debris and heat generated during the processing, but also improves the processing efficiency, while ensuring uniform cooling of the workpiece surface and reducing thermal deformation and processing errors.

[0034] Third: The laser profiler and acoustic emission sensor of the present invention monitor the shape and roughness changes of the workpiece surface and the acoustic emission signals generated during the processing in real time, providing key data for the control system. The external control system adjusts the processing parameters according to these data, such as the feed speed and rotation speed of the honing head and the pressure and flow rate of the coolant, thereby ensuring that the workpiece surface quality that meets the requirements is processed and further optimizing the processing efficiency and workpiece quality.

[0035] Fourthly, the moisture and debris generated during the processing of the present invention are quickly guided to the inner V-shaped guide groove of the annular liquid collecting trough, and finally discharged from the processing area through the drain pipe, thereby avoiding the problem of waste liquid accumulation and retention in the chamber, ensuring the cleanliness of the processing area, and reducing equipment damage or processing quality problems caused by waste liquid accumulation.

[0036] Fifth: The gas collecting hood of the present invention sucks in the tiny particles and harmful gases generated in the processing process and filters them through the primary filter screen, which not only maintains the cleanliness of the processing area, but also effectively removes harmful gases and enhances the safety of the processing process. At the same time, this waste liquid and waste gas treatment method also meets environmental protection requirements and helps to reduce the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0038] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0039] Figure 3 It is a partial structural schematic diagram of the present invention;

[0040] Figure 4 is a top view of the present invention;

[0041] Figure 5 is a front view of the present invention;

[0042] Figure 6 It is a left side view of the present invention;

[0043] Figure 7 It is a right side view of the present invention;

[0044] Figure 8 The present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0045] In the figure: 1. CNC honing machine body; 2. Processing cavity; 3. Dual-axis precision translation stage; 4. Transmission block; 5. Fixed ring; 6. Gear groove; 7. Servo motor; 8. Honing workbench; 9. Support vertical plate; 10. Hydraulic cylinder; 11. Undertaking frame; 12. Fastening plate; 13. Shock-absorbing spring; 14. Fastening pad; 15. Processing machine base; 15. Rotating shaft; 16. Honing head; 17. Hardened gear; 18. Driving motor; 19. Bevel gear; 20. Coolant delivery pipe; 21. Universal joint hose; 22. High-pressure atomizing nozzle; 23. Liquid collecting tank; 24. Gas collecting hood; 25. Primary filter; 26. Vacuum pump; 27. Laser profiler; 28. Acoustic emission sensor; 29. ​​Groove; 30. Drain pipe; 31. Hardened gear pair; 32. Conduit. DETAILED DESCRIPTION

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] The embodiment of the present invention provides a high-speed precision gear transmission honing processing device for a brake pump valve body, such as Figure 1-8 As shown, it comprises a CNC honing machine tool body 1, an inner hole honing mechanism is arranged on the side of the CNC honing machine tool body 1, and a processing cavity 2 is opened in the middle thereof which is lower than its horizontal height;

[0049] A dual-axis precision translation stage 3 disposed in the processing chamber 2;

[0050] A transmission block 4 provided on the moving end of the dual-axis precision translation stage 3;

[0051] A honing workbench 8 for valve body processing is provided on the transmission block 4;

[0052] A fixed ring 5 is sleeved on the outer side of the transmission block 4, and an involute gear groove 6 is arranged on the outer side thereof;

[0053] A servo motor 7 is arranged outside the moving end of the dual-axis precision translation stage 3, and the output end of the servo motor 7 is connected to a hardened gear pair 31 through a key, and the hardened gear pair 31 meshes with the gear groove 6 to form a hardened tooth surface;

[0054] A set of adaptive clamping devices is symmetrically arranged on the honing workbench 8;

[0055] Wherein, the adaptive clamping device comprises:

[0056] A support vertical plate 9 fixed on the honing table 8;

[0057] A hydraulic cylinder 10 is provided on the side of the support vertical plate 9 opposite to the surface of the honing workbench 8, and a receiving frame 11 is connected to the end of the piston rod thereof;

[0058] A fastening plate 12 is arranged outside the receiving frame 11, and a damping spring 13 is arranged between the fastening plate 12 and the receiving frame 11, and a piezoelectric damper is embedded in the damping spring 13;

[0059] The fastening pad 14 is arranged outside the fastening plate 12. The outer surface of the fastening pad 14 is a bionic arc structure adapted to the side wall of the valve body, and a temperature compensation sheet is embedded inside the fastening pad 14.

[0060] It should be noted that, since the existing honing device relies on manual clamping, the positioning reference deviation is large, and the processing vibration and clamping deformation cause the inner cavity size fluctuation to exceed the tolerance; the uneven coverage of the coolant forms a local temperature difference, resulting in thermal deformation; there is a lack of dynamic monitoring feedback mechanism, the preset parameters cannot adapt to the real-time working conditions, and the accumulation of waste liquid particles causes the equipment failure rate to increase. This solution ensures the high stability and accuracy of the workpiece during the processing process through the precise control of the dual-axis precision translation stage 3 and the servo motor 7, as well as the clamping plate design with adjustable spacing and shock absorption, and improves the consistency and reliability of the processing; at the same time, the honing head 16 receives power through a stable rotary power transmission system, and processes the workpiece at a constant pressure and speed, further improving the processing accuracy and stability;

[0061] The application of the high-pressure atomizing nozzle 22 significantly enhances the flushing and cooling effect of the water flow, which not only improves the processing efficiency, but also ensures uniform cooling of the workpiece surface, reduces thermal deformation and processing errors, and thus optimizes the processing quality and surface roughness;

[0062] Real-time monitoring by the laser profiler 27 (XL-80) and acoustic emission sensor 28 (VSX-5000) provides key data for the control system, enabling the external control system to adjust the processing parameters based on real-time feedback to ensure that workpieces that meet the requirements are processed, further improving processing efficiency and workpiece quality;

[0063] In addition, the present invention also focuses on the cleanliness and safety of the processing environment; waste liquid is quickly discharged through the inner V-shaped guide groove of the annular liquid collecting trough 23, thereby avoiding equipment damage or processing quality problems caused by waste liquid accumulation; at the same time, the use of the gas collection hood 24 and the primary filter 25 effectively removes the tiny particles and harmful gases generated during the processing, thereby maintaining the cleanliness of the processing area.

[0064] Specifically, in this embodiment, the scheme mainly includes a CNC honing machine tool body 1, the side of which is equipped with a honing processing device, and a processing cavity 2 below the table top is opened in the center thereof; a dual-axis precision translation stage 3 is installed in the processing cavity 2, which can accurately move in the horizontal direction of the XY axis of the processing cavity 2;

[0065] A transmission block 4 is fixed on the moving end of the dual-axis precision displacement table 3, and the transmission block 4 can move with the movement of the slide; a rotatable honing table 8 is installed on the transmission block 4, which is used to place and fix the brake pump valve body to be processed;

[0066] A fixing ring 5 is sleeved on the outer side of the transmission block 4. An involute gear groove 6 is designed on the outer side of the fixing ring 5 for hard-tooth meshing with a hardened gear pair 31. A servo motor 7 is installed on the outer side of the moving end of the dual-axis precision translation stage 3. The output end of the servo motor 7 is connected to a hardened gear pair 31 through a key. The hardened gear pair 31 is tightly meshed with the gear groove 6 on the fixing ring 5, thereby driving the transmission block 4 and the honing table 8 to perform precise rotational motion.

[0067] On the honing table 8, a group of adaptive clamping devices are symmetrically arranged to fix the brake pump valve body to be processed; each adaptive clamping device includes a supporting vertical plate 9 fixed on the honing table 8, a hydraulic cylinder 10 is installed on the side of the supporting vertical plate 9 opposite to the table surface of the honing table 8, and the end of the piston rod of the hydraulic cylinder 10 is connected to a receiving frame 11; a fastening plate 12 is arranged on the outside of the receiving frame 11, and a shock absorbing spring 13 is installed between the fastening plate 12 and the receiving frame 11, and a piezoelectric damper is also embedded in the shock absorbing spring 13 to provide better shock absorption and buffering effects;

[0068] A fastening pad 14 is provided on the outside of the fastening plate 12. The outer surface of the fastening pad 14 is designed to be a bionic arc structure adapted to the side wall of the valve body to ensure that the valve body can be firmly fixed to avoid displacement during the honing process. At the same time, a temperature compensation sheet is embedded in the fastening pad 14 to compensate for the influence of temperature changes that may occur during the processing on the fastening effect.

[0069] During operation, the brake pump valve body to be processed is first placed on the honing workbench 8 so that its inner hole is opposite to the honing head 16 and is fixed by an adaptive clamping device; then, the honing workbench 8 and the valve body are precisely rotated and moved through the precise control of the dual-axis precision translation table 3 and the servo motor 7, and the honing processing device is started at the same time to perform high-speed and precise honing processing on the valve body; during the entire processing process, the shock-absorbing spring 13 and the piezoelectric damper can provide effective shock absorption and buffering effects to ensure processing accuracy and stability; and the temperature compensation sheet can compensate for the influence of temperature changes that may occur during the processing on the tightening effect, thereby further improving the processing quality and efficiency.

[0070] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the inner hole honing mechanism includes:

[0071] A processing machine base 15 is arranged on the table of the CNC honing machine body 1;

[0072] A rotating shaft 15 is rotatably matched with the side of the processing machine base 15 opposite to the honing worktable 8, the end of which is connected to the honing head 16 through an angular contact bearing, and the other end is connected to a hard-toothed gear 17.

[0073] In this embodiment, one end of the rotating shaft 15 is connected to the honing head 16 through an angular contact bearing; the angular contact bearing ensures high precision, high speed and stable rotation relationship between the rotating shaft 15 and the honing head 16, so that the honing head 16 can perform fine honing processing on the workpiece at a constant pressure and speed during the processing;

[0074] The other end of the rotating shaft 15 is connected to a hard-toothed gear 17; the design of the hard-toothed gear 17 not only improves the transmission efficiency and load-bearing capacity of the rotating shaft 15, but also ensures the stability and durability of the entire transmission system.

[0075] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the inner hole honing mechanism also includes:

[0076] A driving motor 18 is arranged on the top side of the processing machine base 15 , and an output end of the driving motor 18 is connected to a bevel gear 19 via a key, and the bevel gear 19 is meshed with the hard-toothed gear 17 for transmission.

[0077] In this embodiment, when the driving motor 18 is started, the power outputted by the driving motor 18 is transmitted to the bevel gear 19 through the key connection, and the bevel gear 19 starts to rotate immediately; due to the meshing relationship between the bevel gear 19 and the hard-toothed gear 17, the hard-toothed gear 17 will also rotate with the rotation of the bevel gear 19; the rotation of the hard-toothed gear 17 further drives the rotating shaft 15 connected thereto to rotate, and the rotating shaft 15 transmits the stable rotational power to the honing head 16 through the angular contact bearing;

[0078] After receiving the rotational power, the honing head 16 starts to perform fine honing processing on the workpiece placed on the CNC honing machine tool body 1; during the entire processing process, due to the precise meshing transmission of the bevel gear 19 and the hard-toothed gear 17, as well as the high-precision support of the angular contact bearing, it is ensured that the honing head 16 can perform uniform and fine processing on the workpiece at a constant pressure and speed.

[0079] In a further preferred embodiment of the present invention, Figure 1 As shown, a coolant delivery pipe 20 is provided in the processing chamber 2. One end of the coolant delivery pipe 20 is connected to an external high-pressure water source through a quick-release flange, and the other end is connected to a universal joint hose 21. The universal joint hose 21 extends to the upper position of the honing workbench 8 and is connected to a high-pressure atomizing nozzle 22.

[0080] In this embodiment, one end of the coolant delivery pipe 20 is closely connected to the external high-pressure water source through a quick-release flange. This quick-release design is not only easy to install and maintain, but also ensures a stable connection between the high-pressure water source and the device, avoiding water leakage or pressure loss caused by loose connection. The universal joint hose 21 has extremely high flexibility and durability, and can be freely bent and adjusted according to different processing requirements and workpiece shapes. The universal joint hose 21 guides the high-pressure water source to the upper position of the honing table 8, and is connected to a high-pressure atomizing nozzle 22 here. The high-pressure atomizing nozzle 22 can spray the high-pressure water flow onto the workpiece surface in the form of atomization. This atomizing spraying method not only improves the coverage area and uniformity of the water flow, but also enhances the flushing and cooling effect of the water flow, which helps to remove the debris and heat generated during the processing, thereby improving the processing efficiency and workpiece quality.

[0081] In a further preferred embodiment of the present invention, Figure 3 As shown, an annular liquid collecting trough 23 is provided at the four corners of the processing chamber 2, and a V-shaped guide groove is provided inside the annular liquid collecting trough 23.

[0082] In this embodiment, when the high-pressure atomizing nozzle 22 sprays high-pressure atomized water flow onto the surface of the workpiece, the water flow will take away the heat and debris generated during the processing. The water and debris taken away will quickly flow to the bottom of the water trough along the inner V-shaped guide groove of the annular liquid collecting trough 23, and finally pass through the processing cavity 2, avoiding the problem of accumulation and retention in the cavity.

[0083] In a further preferred embodiment of the present invention, Figure 1-7 As shown, an exhaust gas collecting hood 24 is provided on the side of the CNC honing machine tool body 1 opposite to the processing chamber 2, wherein a primary filter 25 is built in the exhaust gas collecting hood 24, and one end of the exhaust gas collecting hood 24 is connected to a vacuum pump 26 through a conduit 32.

[0084] In this embodiment, debris particles are generated during the honing process. After the vacuum pump 26 is started, it can generate a strong negative pressure suction force to suck the air and tiny particles in the exhaust gas collecting hood 24 through the conduit 32 and filter them through the primary filter 25, thereby maintaining the cleanliness and safety of the processing area.

[0085] In a further preferred embodiment of the present invention, Figure 1-2 As shown, an intelligent vibration monitoring module is integrated into the side wall of the processing base 15 adjacent to the honing head 16 , and the intelligent vibration monitoring module includes a laser profiler 27 and an acoustic emission sensor 28 .

[0086] In this embodiment, the laser profiler 27 uses a laser beam to illuminate the workpiece surface and accurately measures the three-dimensional profile of the workpiece surface by receiving reflected light; during the processing, the laser profiler 27 can monitor the shape and roughness changes of the workpiece surface in real time, and provide key data for the evaluation and control of the processing quality; these data can be used to adjust the processing parameters, such as the feed speed and rotation speed of the honing head 16 and the pressure and flow rate of the coolant, so as to ensure that the surface quality of the workpiece that meets the requirements is processed;

[0087] The acoustic emission sensor 28 is used to monitor the acoustic emission signals generated during the processing; the acoustic emission signals are transient elastic waves generated by events such as stress release, crack expansion or particle shedding in the workpiece material; these weak signals can be captured in real time by the acoustic emission sensor 28, and analyzed and processed to identify potential processing defects or damage; this monitoring method has high sensitivity and real-time performance, and can timely detect and warn potential quality problems during the processing;

[0088] During the processing, the data collected in real time by the intelligent vibration monitoring module will be transmitted to the external control system for analysis and processing; the control system adjusts the processing parameters based on these data to optimize the processing quality and efficiency; at the same time, these data can also be used for subsequent process improvement and quality traceability, providing strong support for the continuous improvement of the production process.

[0089] In a further preferred embodiment of the present invention, Figure 8 As shown, the outer surface of the fastening pad 14 is provided with an anti-skid groove 29, and silicon carbide particles are embedded in the bottom of the groove 29 to form a wear-resistant composite coating.

[0090] In this embodiment, during the processing, when the honing head 16 performs fine processing on the workpiece, the fastening pad 14 can stably fix the workpiece to prevent it from loosening or displacement due to vibration or impact force during the processing. At the same time, the anti-slip groove 29 and the wear-resistant composite coating embedded with silicon carbide particles can ensure that the fastening pad 14 maintains excellent friction performance and wear resistance during long-term use, thereby ensuring the stability and consistency of the processing quality.

[0091] In a further preferred embodiment of the present invention, Figure 1-2 As shown, a drain pipe 30 is provided at the lower part of the liquid collecting tank 23 of the CNC honing machine body 1 .

[0092] In this embodiment, the drain pipe 30 can effectively collect and guide the waste liquid to avoid its accumulation and retention in the processing area.

[0093] Working principle: The central part of the main body 1 of the CNC honing machine tool of the present invention is provided with a processing cavity 2 which is lower than the table surface; a double-axis precision displacement stage 3 is installed in the processing cavity 2, and the double-axis precision displacement stage 3 can accurately move in the horizontal direction of the XY axis of the processing cavity 2; a transmission block 4 is fixed on the moving end of the double-axis precision displacement stage 3, and a rotatable honing worktable 8 is installed on the transmission block 4, which is used to place and fix the brake pump valve body to be processed;

[0094] In order to ensure that the honing table 8 can rotate accurately, a fixing ring 5 is sleeved on the outer side of the transmission block 4. The outer side of the fixing ring 5 is designed with an involute gear groove 6, which is hardened and meshed with the hardened gear pair 31 of the servo motor 7 installed on the outer side of the moving end of the dual-axis precision translation stage 3; in this way, the output power of the servo motor 7 can drive the transmission block 4 and the honing table 8 to perform precise rotation through the hardened gear pair 31;

[0095] On the honing workbench 8, a group of adaptive clamping devices are symmetrically arranged to fix the brake pump valve body to be processed; each adaptive clamping device includes a supporting vertical plate 9, a hydraulic cylinder 10, a receiving frame 11 and a fastening plate 12; a shock absorbing spring 13 and a piezoelectric damper are installed between the fastening plate 12 and the receiving frame 11 to provide better shock absorption and buffering effects; a fastening pad 14 is arranged on the outside of the fastening plate 12, and the outer surface of the fastening pad 14 is designed to be a bionic arc structure adapted to the side wall of the valve body, and a temperature compensation sheet is embedded inside to ensure that the valve body can be firmly fixed during the processing to avoid displacement;

[0096] During honing, the driving motor 18 is started, and the power outputted by the driving motor 18 is transmitted to the bevel gear 19 through the key connection, and the bevel gear 19 rotates immediately; due to the precise meshing relationship between the bevel gear 19 and the hard-toothed gear 17, the hard-toothed gear 17 will also rotate with the rotation of the bevel gear 19; the rotation of the hard-toothed gear 17 further drives the rotating shaft 15 connected thereto to rotate, and the rotating shaft 15 transmits the stable rotational power to the honing head 16 through the angular contact bearing to process the valve body;

[0097] At the same time, the coolant delivery pipe 20 is closely connected to the external high-pressure water source through a quick-release flange, and the high-pressure water source is guided to the upper position of the honing table 8 through a universal joint hose 21, and is connected to a high-pressure atomizing nozzle 22; the high-pressure atomizing nozzle 22 sprays the high-pressure water flow onto the workpiece surface in the form of atomization, thereby increasing the coverage area and uniformity of the water flow and enhancing the flushing and cooling effect of the water flow;

[0098] During the processing, the laser profiler 27 and the acoustic emission sensor 28, as part of the intelligent vibration monitoring module, monitor the shape and roughness changes of the workpiece surface and the acoustic emission signals generated during the processing in real time; these data are transmitted to the external control system for analysis and processing, and the control system adjusts the processing parameters according to these data to optimize the processing quality and efficiency;

[0099] When the high-pressure atomizing nozzle 22 sprays high-pressure atomized water flow onto the surface of the workpiece, the water flow will take away the heat and debris generated during the processing; the water and debris taken away will quickly flow to the bottom of the water tank along the inner V-shaped guide groove of the annular liquid collecting tank 23, and finally be discharged from the processing area through the drain pipe 30; at the same time, the exhaust gas collecting hood 24 is connected to the vacuum pump 26 through the conduit 32, and the vacuum pump 26 generates a strong negative pressure suction force to suck in the tiny particles and harmful gases generated during the processing, and filter them through the primary filter 25, thereby maintaining the cleanliness and safety of the processing area.

[0100] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0101] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0102] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A high-speed precision gear-driven honing device for a brake pump valve body, characterized in that: include: The main body of the CNC honing machine tool has an inner hole honing mechanism arranged on the side thereof, and a processing cavity which is lower than its horizontal height is opened in the middle thereof; A dual-axis precision translation stage disposed in the processing chamber; A transmission block provided on the moving end of the dual-axis precision translation stage; A honing table for valve body machining is provided on the transmission block; A fixed ring is sleeved on the outer side of the transmission block, and an involute gear groove is arranged on the outer side thereof; A servo motor is arranged outside the moving end of the dual-axis precision translation stage, and the output end of the servo motor is connected to a hardened gear pair through a key, and the hardened gear pair meshes with the gear groove to form a hardened tooth surface; A set of adaptive clamping devices is symmetrically arranged on the honing workbench; Wherein, the adaptive clamping device comprises: A support vertical plate fixed to the honing table; A hydraulic cylinder is arranged on the side of the supporting vertical plate opposite to the honing workbench table, and the end of the piston rod thereof is connected to a receiving frame; A fastening plate is arranged outside the receiving frame, a shock absorbing spring is arranged between the fastening plate and the receiving frame, and a piezoelectric damper is embedded in the shock absorbing spring; The fastening pad is arranged on the outside of the fastening plate, and the outer surface of the fastening pad is a bionic arc structure adapted to the side wall of the valve body, and a temperature compensation sheet is embedded in the fastening pad.

2. A brake pump valve body high-speed precision gear transmission honing processing device as claimed in claim 1, characterized in that: Internal hole honing mechanism includes: A processing machine base arranged on the main table of the CNC honing machine tool; A rotating shaft is rotatably matched on one side of the processing machine base opposite to the honing worktable, the end of which is connected to the honing head through an angular contact bearing, and the other end is connected to a hard-toothed gear.

3. A brake pump valve body high-speed precision gear transmission honing processing device as claimed in claim 2, characterized in that: The internal hole honing mechanism also includes: The drive motor is arranged on the top side of the processing machine base, and the output end of the drive motor is connected to the bevel gear through a key, and the bevel gear is meshed with the hard tooth surface gear for transmission.

4. A brake pump valve body high-speed precision gear transmission honing processing device as claimed in claim 2, characterized in that: A coolant delivery pipe is arranged in the processing chamber, one end of which is connected to an external high-pressure water source through a quick-release flange, and the other end is connected to a universal joint hose, which extends to the upper position of the honing workbench and is connected to a high-pressure atomizing nozzle.

5. A high-speed precision gear transmission honing device for a brake pump valve body as claimed in claim 4, characterized in that: Annular liquid collecting grooves are arranged at the four corners of the processing cavity, and V-shaped guide grooves are arranged inside the annular liquid collecting grooves.

6. A high-speed precision gear-driven honing device for a brake pump valve body as claimed in claim 5, characterized in that: An exhaust gas collecting hood is arranged on the side of the CNC honing machine tool body opposite to the processing cavity, wherein a primary filter is built in, and one end of the exhaust gas collecting hood is connected to a vacuum pump through a conduit.

7. A brake pump valve body high-speed precision gear transmission honing device as claimed in claim 3, characterized in that: An intelligent vibration monitoring module is integrated on the side wall of the processing machine base adjacent to the honing head. The intelligent vibration monitoring module includes a laser profiler and an acoustic emission sensor.

8. A high-speed precision gear transmission honing device for a brake pump valve body as claimed in claim 1, characterized in that: The outer surface of the fastening pad is provided with anti-skid grooves, and silicon carbide particles are embedded in the bottom of the grooves to form a wear-resistant composite coating.

9. A brake pump valve body high-speed precision gear transmission honing device as claimed in claim 6, characterized in that: The main body of the CNC honing machine tool is provided with a drain pipe at the lower part of the liquid collecting tank.

Images