Hardware surface cleaning and polishing device

Abstract

The utility model discloses a hardware parts surface cleaning and polishing equipment, including polishing cabin, be equipped with an ultrasonic cleaning pool in this polishing cabin, this ultrasonic cleaning pool is used to carry out surface cleaning to the workpiece of processing, and the one end of ultrasonic cleaning pool is equipped with frock elevating system, and this frock elevating system is used to adjust the vertical displacement of workpiece of processing, in the ultrasonic cleaning pool one side is equipped with polishing mechanism, and this polishing mechanism is used to carry out polishing operation to workpiece surface of processing, and this frock elevating system includes elevating linear module, the elevating arm of elevating linear module sliding side and the frock clamping plate of elevating arm end portion, and the elevating linear module is used to adjust the vertical displacement of elevating arm, and the frock clamping plate is used to install the workpiece of processing limit, the utility model discloses through frock elevating system eliminates manual transfer link glove, the contact pollution risk of handling tool and workpiece, ultrasonic cleaning pool, cooperation polishing component constructs closed type processing of cleaning - polishing double position.

Description

Technical Field

[0001] This utility model relates to the technical field of hardware processing, and specifically to a surface cleaning and polishing equipment for hardware parts. Background Technology

[0002] Traditional impeller processing technology relies on operators to hold an angled grinding wheel to shape the blade edges during the manual grinding stage. Multi-grade sandpaper (24# to 120#) is used for progressive polishing, and an axial grinding wheel is used to complete the R5-R10 rounded corner transition processing. The cleaning and grinding processes are completely independent and need to be connected by manual transfer. The alkaline residual liquid after cleaning drips and forms a cross-contamination cycle with the titanium alloy micro powder generated by grinding, which leads to the risk of equipment insulation failure and frequent metal stains on the workpiece surface.

[0003] Traditional techniques suffer from issues such as manual grinding leading to blade thickness uniformity fluctuations of up to 0.3 mm, and the complete reliance on experience for flow channel radius machining, resulting in geometric abrupt changes and aerodynamic efficiency losses. Furthermore, cross-transmission of contaminants generated during process separation increases the amount of chemical agents used in the cleaning process by 20%. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a surface cleaning and polishing equipment for hardware parts. It uses a lifting linear module to drive the workpiece directly between the ultrasonic cleaning tank and the polishing station, completely eliminating the risk of contact contamination between gloves, handling tools, and the workpiece during manual transfer. The cavitation effect generated by the 20-40kHz ultrasonic generator below the ultrasonic cleaning tank, combined with the -0.04~-0.06MPa negative pressure adsorption channel and 0.3-0.5MPa coolant nozzle interface built into the polishing component, constructs a closed-loop processing system for cleaning and polishing, reducing chemical reagent usage by 85% and lowering the risk of equipment insulation failure by 90%. Through the threaded screw drive of the vertical adjustment component, the linear drive module of the horizontal adjustment component, and the ball screw-type linear module of the longitudinal adjustment component, combined with the 50-200mm / s variable speed control of a 400W AC servo motor, the processing accuracy of the impeller flow channel R5-R10 rounded corner transition is improved by 300%, and the first-pass yield of complex curved surfaces reaches 98%, significantly improving efficiency compared to traditional processes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A surface cleaning and polishing device for hardware parts includes a polishing chamber with an ultrasonic cleaning tank inside. The ultrasonic cleaning tank is used to clean the surface of the workpiece to be processed. A tooling lifting mechanism is provided at one end of the ultrasonic cleaning tank to adjust the vertical displacement of the workpiece to be processed. A polishing mechanism is provided on one side of the ultrasonic cleaning tank to polish the surface of the workpiece to be processed. The tooling lifting mechanism includes a lifting linear module, a lifting arm provided on the sliding side of the lifting linear module, and a tooling clamping plate provided at the end of the lifting arm. The lifting linear module is used to adjust the vertical displacement of the lifting arm, and the tooling clamping plate is used to install and limit the workpiece to be processed.

[0007] An electronic control terminal is provided on one side of the grinding chamber. The electronic control terminal is used to control the operation of each mechanism. The electronic control terminal includes a display controller and an information input terminal electrically connected to the display controller.

[0008] The ultrasonic cleaning tank includes a cleaning tank and an ultrasonic generator located below the cleaning tank. The ultrasonic generator is electrically connected to an electronic control terminal. The cleaning tank is used to provide a container for cleaning the workpiece to be processed. The ultrasonic generator generates ultrasonic oscillation waves.

[0009] The grinding mechanism includes a vertical adjustment component mounted on one side of the ultrasonic cleaning tank via a support frame, a horizontal adjustment component mounted on one side of the vertical adjustment component, a longitudinal adjustment component mounted on the sliding side of the horizontal adjustment component, and a grinding component mounted on the sliding end of the longitudinal adjustment component. The vertical adjustment component is used to adjust the vertical displacement of the grinding component, the horizontal adjustment component is used to adjust the horizontal displacement of the grinding component, and the longitudinal adjustment component is used to adjust the longitudinal displacement of the grinding component. The grinding component is used to grind the workpiece to be processed.

[0010] The support frame includes two support columns installed in the grinding chamber and a support beam connected to the top of the two support columns. One side of the support column is provided with a sliding groove, and at least one sliding block is slidably connected in the sliding groove.

[0011] The vertical adjustment assembly includes a drive motor mounted on the support beam via a motor plate, a threaded screw mounted on the output end of the drive motor via a flange, a screw shaft seat at one end of the threaded screw, and a screw nut seat passing through the threaded screw. The screw shaft seat is fixedly connected to the grinding chamber, and the screw nut seat is connected to the horizontal adjustment assembly. The drive motor drives the threaded screw to rotate, the threaded screw transmits the torque of the drive motor to the screw nut seat, the screw shaft seat cooperates with the rotation of the threaded screw, and the screw nut seat cooperates with the threaded screw to convert the rotational motion into linear motion along the axial direction. The screw nut seat drives the horizontal adjustment assembly to generate vertical displacement.

[0012] The lateral adjustment assembly includes a linear drive module disposed on one side of the lead screw nut seat, a sliding connecting plate disposed on one side of the linear drive module, and a sliding seat slidably connected to the sliding connecting plate. One side of the sliding seat is connected to the longitudinal adjustment module. The linear drive module is used to drive the sliding seat to generate lateral displacement. The sliding connecting plate is used to transmit vertical adjustment displacement. The sliding seat is used to transmit the lateral displacement of the linear drive module to the longitudinal adjustment module.

[0013] The sliding connecting plate is provided with two connecting holes that penetrate the two supporting columns. One side of the connecting hole is connected to the sliding block, and a connecting groove is provided between the two connecting holes. The connecting groove is slidably connected to the sliding seat.

[0014] The longitudinal adjustment component includes a linear module disposed on one side of the sliding seat, a guide rail disposed on each side of the linear module, and a slider slidably connected to the guide rail. The linear module is used to drive the grinding component to perform longitudinal displacement adjustment.

[0015] The grinding assembly includes a grinding motor mounted on the linear module via a motor bracket and a grinding part located at the output end of the grinding motor. One side of the motor bracket is fixedly connected to the slider. The grinding motor is used to drive the grinding part to rotate, and the grinding part is used to directly contact the workpiece to be processed for surface treatment.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The lifting linear module of the tooling lifting mechanism directly drives the lifting arm to lift the workpiece from the ultrasonic cleaning tank to the grinding station, eliminating the risk of contact contamination between gloves, handling tools and workpieces in the manual transfer process. The ultrasonic generator below the cleaning tank generates 20-40kHz ultrasonic waves, which thoroughly remove oil stains through cavitation during the cleaning stage. After cleaning, the alkaline cleaning liquid remaining on the workpiece surface is directly lifted into the grinding chamber by the tooling lifting mechanism, avoiding the problem of cleaning liquid dripping and contaminating the equipment in the grinding area in traditional processes. The negative pressure adsorption channel (-0.04~-0.06MPa) built into the grinding component and the coolant nozzle interface (0.3-0.5MPa) form a two-phase chip removal system, which adsorbs the coolant discharged from the φ1.5mm nozzle hole in real time during the grinding process, so that the source of contamination is completely sealed in the grinding chamber, reducing the probability of cross-contamination by more than 85%, and significantly reducing the amount of chemical agents used and the frequency of equipment maintenance.

[0018] 2. The threaded screw of the vertical adjustment component (such as the HIWIN EGH series linear module) converts the drive motor torque into axial displacement at the 0.01mm level through the screw nut seat, establishing a Z-axis reference for the grinding component. The linear drive module of the horizontal adjustment component, in conjunction with the rigid connection between the connecting holes on both sides of the sliding connecting plate and the sliding block of the support column, ensures that the X-axis displacement perpendicularity is ≤0.02mm. The ball screw type linear module of the longitudinal adjustment component drives the slider to feed along the guide rail along the Y-axis. Combined with the ≤0.03mm radial runout accuracy of the grinding section spindle (45 steel heat-treated, surface hard chrome plated), the machining accuracy of the impeller flow channel R5-R10 rounded corner transition is improved by 300%. The electronic control terminal adjusts the feed amount in real time through feedback from the grating ruler. Combined with the 50-200mm / s variable speed control of the 400W AC servo motor (Panasonic MINAS A6 series), the grinding section can adapt to changes in machining allowance, avoiding blade thickness fluctuations caused by traditional manual grinding (traditional 0.3mm vs. 0.05mm in this solution). The combination of this three-dimensional precision adjustment system and adaptive control algorithm increases the first-pass yield of complex curved surface processing to 98%, which is significantly more efficient than traditional grinding processes. Attached Figure Description

[0019] Figure 1 This is one of the perspective views of this utility model.

[0020] Figure 2 This is the second perspective view of this utility model.

[0021] Figure 3 This is the third perspective view of this utility model.

[0022] Figure 4 This is a perspective view of the support frame of this utility model.

[0023] Figure 5 This is a perspective view of the vertical adjustment component and the horizontal adjustment component of this utility model.

[0024] Figure 6 This is a perspective view of the longitudinal adjustment component and the grinding component of this utility model.

[0025] Explanation of icon numbers:

[0026] 1-Grinding chamber, 2-Ultrasonic cleaning tank, 20-Cleaning tank, 21-Ultrasonic generator, 3-Tooling lifting mechanism, 30-Lifting linear module, 31-Lifting arm, 32-Tooling clamp, 4-Grinding mechanism, 40-Support frame, 400-Support column, 4000-Slide groove, 4001-Sliding block, 401-Support beam, 41-Vertical adjustment assembly, 410-Motor plate, 411-Drive motor, 412-Flange, 413-Threaded screw, 414-Thread 415-Screw nut seat, 42-Transverse adjustment assembly, 420-Linear drive module, 421-Sliding connecting plate, 4210-Connecting hole, 4211-Connecting groove, 422-Sliding seat, 43-Longitudinal adjustment assembly, 430-Linear module, 431-Guide rail, 432-Slider, 44-Grinding assembly, 440-Motor bracket, 441-Grinding motor, 442-Grinding section, 5-Electrical control terminal, 50-Display controller, 51-Information input terminal. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figure 1-6 As shown, this utility model relates to a surface cleaning and polishing equipment for hardware parts, including a polishing chamber 1, which contains an ultrasonic cleaning tank 2 for cleaning the surface of the workpiece. A tooling lifting mechanism 3 is provided at one end of the ultrasonic cleaning tank 2 to adjust the vertical displacement of the workpiece. A polishing mechanism 4 is provided on one side of the ultrasonic cleaning tank 2 for polishing the surface of the workpiece. The tooling lifting mechanism 3 includes a linear lifting module 30, a lifting arm 31 located on the sliding side of the linear lifting module 30, and a tooling clamp 32 located at the end of the lifting arm 31. The linear lifting module 30 adjusts the vertical displacement of the lifting arm 31, and the tooling clamp 32 is used to mount and limit the workpiece. The workpiece is mounted onto the tooling clamp 32. First, the tooling... The lifting mechanism 3 moves the workpiece to be processed into the ultrasonic cleaning tank 2. The ultrasonic cleaning tank 2 starts working and pre-cleans the workpiece. After cleaning, the lifting linear module 30 of the tooling lifting mechanism 3 drives the lifting arm 31 to rise. The lifting arm 31 drives the tooling clamp 32 to lift the workpiece to be processed to the grinding station height of the grinding mechanism 4. Under the command of the electronic control terminal 5, the grinding mechanism 4 completes the grinding operation of the workpiece. Then, the tooling lifting mechanism 3 moves the workpiece to be processed into the ultrasonic cleaning tank 2 again. The ultrasonic cleaning tank 2 starts working again to clean the workpiece. After cleaning, the tooling lifting mechanism 3 lifts the workpiece to be processed to the working surface to check the grinding and cleaning effect. If it is not qualified, the above grinding and cleaning process is repeated until it is qualified. Then the workpiece is removed and the next workpiece is processed. This cycle continues.

[0029] like Figure 1-2 As shown, an electronic control terminal 5 is provided on one side of the grinding chamber 1. The electronic control terminal 5 is used to control the operation of each mechanism. The electronic control terminal 5 includes a display controller 50 and an information input terminal 51 electrically connected to the display controller 50.

[0030] like Figure 2-3 As shown, the ultrasonic cleaning tank 2 includes a cleaning tank 20 and an ultrasonic generator 21 located below the cleaning tank 20. The ultrasonic generator 21 is electrically connected to an electronic control terminal 5. The cleaning tank 20 serves as a container for cleaning the workpiece to be processed, and the ultrasonic generator 21 generates ultrasonic vibration waves. The cleaning tank 20 of the ultrasonic cleaning tank 2 provides a cleaning environment for the workpiece to be processed by containing the cleaning medium. The ultrasonic generator 21 located below the tank body achieves intelligent control through its electrical connection with the electronic control terminal 5. When the ultrasonic generator 21 is started, the electronic control terminal 5 first sends a working command to the ultrasonic generator 21. The ultrasonic generator 21 converts electrical energy into high-frequency mechanical vibration energy, which is transmitted through the bottom of the cleaning tank 20. The ultrasonic waves radiate 20-40kHz into the liquid medium. When these ultrasonic waves propagate in the liquid, they generate a cavitation effect, that is, tiny bubbles are formed in the negative pressure area and rapidly burst in the positive pressure area. The resulting local high temperature and high pressure and micro-jet shock waves can effectively remove contaminants such as oil, cutting fluid residue, and metal shavings adhering to the surface of the workpiece. It is especially suitable for hardware parts with complex cavities or tiny pores, such as impellers. During the cleaning process, the tooling lifting mechanism 3 uses the lifting linear module 30 to immerse the tooling clamping plate 32 holding the workpiece to a specific depth below the cleaning liquid surface, ensuring that the workpiece is completely within the ultrasonic wave action area. The ultrasonic cleaning tank 2 lays a cleanliness foundation for the subsequent high-precision processing of the grinding mechanism 4.

[0031] like Figure 2-6As shown, the polishing mechanism 4 includes a vertical adjustment component 41 mounted on one side of the ultrasonic cleaning tank 2 via a support frame 40, a horizontal adjustment component 42 mounted on one side of the vertical adjustment component 41, a longitudinal adjustment component 43 mounted on the sliding side of the horizontal adjustment component 42, and a polishing component 44 mounted on the sliding end of the longitudinal adjustment component 43. The vertical adjustment component 41 is used to adjust the vertical displacement of the polishing component 44, the horizontal adjustment component 42 is used to adjust the horizontal displacement of the polishing component 44, and the longitudinal adjustment component 43 is used to adjust the polishing... The longitudinal displacement of component 44 is used to grind the workpiece. The grinding mechanism 4 undertakes the core processing function. It forms a spatial positioning reference through the support frame 40. The vertical adjustment component 41, the horizontal adjustment component 42, and the longitudinal adjustment component 43 perform three-dimensional spatial displacement adjustment to accurately position the end grinding component 44. After the workpiece is lifted to the grinding station by the tooling lifting mechanism 3, the electrical control terminal 5 first sends a command to the drive motor 411 of the vertical adjustment component 41, which is then controlled by the threaded screw 41. The rotational motion of component 3 is converted into axial displacement of the lead screw nut seat 415, driving the lateral adjustment component 42 to perform initial height positioning along the slide groove 4000 of the support column 400; subsequently, the linear drive module 420 of the lateral adjustment component 42 is activated, pushing the sliding seat 422 to move laterally along the connecting groove 4211 of the sliding connecting plate 421, simultaneously driving the longitudinal adjustment component 43 to perform precise lateral positioning in the horizontal plane; at this time, the linear module 430 of the longitudinal adjustment component 43 drives the slider 432 to perform longitudinal feed motion along the guide rail 431, ultimately... The grinding part 442 of the grinding assembly 44 forms a precise positional correspondence with the surface of the workpiece to be processed. During the three-dimensional adjustment process, the sliding block 4001, which is slidably connected to the connecting hole 4210 of the sliding connecting plate 421 and the sliding groove 4000 of the support column 400, forms a guiding constraint to ensure the perpendicularity and positioning accuracy of displacement in each direction. When the grinding assembly 44 reaches the preset processing position, the electrical control terminal 5 starts the grinding motor 441, and the surface roughness is controlled by the high-speed rotational friction between the grinding part 442 and the surface of the workpiece to be processed.

[0032] like Figure 2 , 4 As shown, the support frame 40 includes two support columns 400 installed in the grinding chamber 1 and a support beam 401 connected to the top of the two support columns 400. One side of the support column 400 is provided with a groove 4000. At least one sliding block 4001 is slidably connected in the groove 4000. When the sliding block 4001 is assembled into the groove 4000, the side of the sliding block 4001 connected to the sliding connecting plate 421 is kept horizontal with the surface of the support column 400 to ensure that the sliding connecting block slides smoothly along the support column 400. The support beam 401 is provided with a slot at the connection with the support column 400, and the support column 400 is pressed into the slot for rigid connection.

[0033] like Figure 5 As shown, the vertical adjustment assembly 41 includes a drive motor 411 mounted on the support beam 401 via a motor encoder 410, a threaded screw 413 mounted on the output end of the drive motor 411 via a flange 412, a screw shaft seat 414 located at one end of the threaded screw 413, and a screw nut seat 415 passing through the threaded screw 413. The screw shaft seat 414 is fixedly connected to the grinding chamber 1, and the screw nut seat 415 is connected to the horizontal adjustment assembly 42. The drive motor 411 drives the threaded screw 413 to rotate, and the threaded screw 413 transmits the torque of the drive motor 411 to the screw nut seat 415. The inner ring of the screw nut seat 415 has an internal thread that matches the external thread of the threaded screw 413. The screw shaft seat 414 cooperates with the threaded screw 413 to rotate, and the screw nut seat 415 cooperates with the threaded screw 413 to rotate the rotational motion. The rotational motion is converted into linear motion along the axial direction, thereby driving the lateral adjustment component 42 to generate vertical displacement through the lead screw nut seat 415. When the electronic control terminal 5 issues a displacement command, the output shaft of the drive motor 411 drives the threaded lead screw 413 to rotate under the bearing constraint of the lead screw shaft seat 414. At this time, the lead screw nut seat 415, which passes through the threaded lead screw 413, converts the rotational motion into linear displacement along the axial direction of the lead screw through the helical engagement of the internal thread and the external thread of the lead screw. This displacement motion is transmitted through the lead screw nut seat 415 and the linear drive module 420 of the lateral adjustment component 42, driving the entire lateral adjustment module to move vertically up and down along the slide groove 4000 of the support column 400 through the sliding connection plate 421. This establishes the Z-axis reference of the three-dimensional coordinate system for the subsequent planar positioning of the lateral adjustment component 42 and the feed machining of the longitudinal adjustment component 43, ensuring the absolute positioning accuracy of the vertical displacement.

[0034] like Figure 5As shown, the lateral adjustment assembly 42 includes a linear drive module 420 disposed on one side of the lead screw nut seat 415, a sliding connecting plate 421 disposed on one side of the linear drive module 420, and a sliding seat 422 slidably connected to the sliding connecting plate 421. One side of the sliding seat 422 is connected to the longitudinal adjustment module. The linear drive module 420 drives the sliding seat 422 to generate lateral displacement. The sliding connecting plate 421 transmits vertical adjustment displacement. The sliding seat 422 transmits the lateral displacement of the linear drive module 420 to the longitudinal adjustment module. The sliding connecting plate 421 has two connecting holes 4210 penetrating the two support columns 400. One side of the connecting hole 4210 is connected to the sliding block 4001. A connecting groove 4211 is provided between the two connecting holes 4210. The connecting groove 4211 is connected to the sliding seat 4210. 2. Sliding connection; After the vertical adjustment component 41 completes the Z-axis positioning, the electronic control terminal 5 sends a lateral displacement command to the linear drive module 420. The internal motor or hydraulic drive pushes the sliding seat 422 to move laterally along the connecting groove 4211 of the sliding connecting plate 421. During the lateral movement, the side of the sliding seat 422 maintains a rigid connection with the vertical adjustment module, accurately transmitting the lateral displacement to the subsequent processing unit. At the same time, the sliding connecting plate 421 serves as the intermediate transmission medium between the lead screw nut seat 415 of the vertical adjustment component 41 and the lateral sliding seat 422, ensuring the stability of motion transmission and reducing the overall weight through the hollow design. This allows the lateral adjustment component 42 to quickly approach the processing position from the safety position with a high response speed, establishing the X-axis reference of the planar coordinate system for the feed processing of the vertical adjustment component 43.

[0035] like Figure 6 As shown, the longitudinal adjustment component 43 includes a linear module 430 disposed on one side of the sliding seat 422, a guide rail 431 disposed on each side of the linear module 430, and a slider 432 slidably connected to the guide rail 431. The linear module 430 is used to drive the grinding component 44 to perform longitudinal displacement adjustment. After the transverse adjustment component 42 completes the X-axis plane positioning, the electronic control terminal 5 sends a longitudinal feed command to the linear module 430. Its internal drive converts the rotational motion into the axial displacement of the slider 432 through the ball screw. At this time, the slider 432 moves along the two guide rails 431. The linear motion drives the end grinding component 44 to approach the surface of the workpiece to be processed. The mechanical connection interface between the outer shell of the linear module 430 and the sliding seat 422 is positioned by a rigid pin, so that the XZ plane displacement transmitted by the transverse adjustment component 42 and the Y-axis motion of the longitudinal adjustment form a three-dimensional spatial vector control. Combined with the force-position hybrid control algorithm of the electronic control terminal 5, the grinding component 44 can adjust the feed amount in real time according to the surface morphology of the workpiece to be processed. This avoids the overload risk caused by rigid contact and realizes adaptive processing of complex curved surfaces. At the same time, the surface of the slider 432 is set.

[0036] like Figure 6 As shown, the grinding assembly 44 includes a grinding motor 441 mounted on the linear module 430 via a motor bracket 440 and a grinding section 442 located at the output end of the grinding motor 441. One side of the motor bracket 440 is fixedly connected to the slider 432. The grinding motor 441 drives the grinding section 442 to rotate. The grinding section 442 directly contacts the workpiece to be processed for surface treatment. The negative pressure adsorption channel or coolant nozzle interface mounted on the grinding section 442 can simultaneously remove chips and cool the tool during processing. When the linear module 430 receives the feed command from the electronic control terminal 5, the linear module 430—a ball screw type module (such as the HIWIN EGH series or THK SRG series)—drives the grinding motor 441 to longitudinally approach along the guide rail 431 through the precise displacement of the EGH20 slider. At this time, the grinding motor 441—a 400W AC servo motor (such as the Panasonic MINAS)—is used. The A6 series motor is mounted on a 440 aluminum alloy bracket via a 60mm flange. Its output shaft transmits torque to the 442 grinding spindle via a φ10mm keyway. The spindle is made of 45 steel, heat-treated and hard chrome plated. The front M16×1.5 threaded interface allows for quick replacement of grinding or polishing wheels of different grits. A central φ8mm through-hole connects to a negative pressure hose. During rotary machining, a negative pressure of -0.04 to 0.06 MPa draws chips through the front φ1.5mm dual nozzle orifice. The dust collection system, along with the φ6mm coolant quick-connect interface, sprays emulsion at a pressure of 0.3-0.5MPa to form a gas-liquid two-phase chip removal and cooling channel. The T-slot at the bottom of the motor bracket 440 and the positioning holes of the M5 bolts (2 bolts spaced 40mm apart) ensure the flatness of the connection surface with the slider 432. The reserved φ47mm bearing hole, through the back-to-back installation of deep groove ball bearings, controls the radial runout of the spindle within the range of ≤0.03mm. The high-precision rotation of the servo motor, combined with the variable speed control of the linear module 430 within the 200-500mm stroke range of 50-200mm / s, enables the grinding component 44 to achieve mirror finishing of flat workpieces and adaptive grinding of irregular curved surfaces through trajectory programming. Its modular interface also supports the expansion of the quick-change structure. By changing different specifications of grinding tools and adjusting the negative pressure / cooling parameters, it can adapt to the processing needs of diverse materials from aluminum alloy to stainless steel.

[0037] Working principle: After the operator sets the process parameters through the display controller 50 of the electronic control terminal 5, the lifting linear module 30 of the tooling lifting mechanism 3 drives the lifting arm 31 to move the tooling clamp 32 to hold the workpiece to be processed and immerse it in the ultrasonic cleaning tank 2. At this time, the cleaning medium in the cleaning tank 20 forms a cavitation effect under the action of the 20-40kHz ultrasonic frequency vibration generated by the ultrasonic generator 21 below the tank. The micro-jet generated by the explosion of microbubbles in the liquid completely removes oil and particulate impurities from the surface of the workpiece to be processed. After cleaning, the lifting linear module 30 lifts the workpiece to be processed to the grinding mechanism 4 station; The drive motor 411 of the vertical adjustment component 41 is connected to the drive threaded screw 413 via the flange 412, which rotates under the support of the screw shaft seat 414. The screw nut seat 415 converts the rotational motion into the axial displacement of the sliding connecting plate 421 along the slide groove 4000 of the support column 400, driving the linear drive module 420 of the horizontal adjustment component 42 to perform initial Z-axis positioning. Subsequently, the linear drive module 420 pushes the sliding seat 422 to move laterally along the connecting groove 4211 of the sliding connecting plate 421. The sliding connecting plate 421 is connected to the sliding block 40 inside the support column 400 through the connecting holes 4210 on both sides. The rigid connection of 01 ensures the perpendicularity of the X-axis displacement. When the sliding seat 422 reaches the preset XZ coordinate, the linear module 430 of the longitudinal adjustment component 43 drives the slider 432 to perform Y-axis precision feed along the two side guide rails 431. At this time, the 400W AC servo motor drives the grinding part 442 to rotate via the spindle. The grinding tool contacts the surface of the workpiece at a linear velocity of 50-200mm / s. The central φ8mm negative pressure channel adsorbs chips under the vacuum of -0.04~-0.06MPa. At the same time, the φ6mm coolant quick-connect interface sprays emulsion at a pressure of 0.3-0.5MPa. A gas-liquid two-phase chip removal and cooling system is formed. The electronic control terminal 5 adjusts the feed of the linear module 430 in real time through feedback from the grating ruler, so that the grinding part 442 maintains a spindle runout accuracy of ≤0.03mm within a total stroke of 200-500mm. When encountering irregular curved surfaces, the three-dimensional coordinate adjustment control system automatically compensates for the machining allowance through a force-position hybrid control algorithm until the precision machining of surface roughness Ra0.8-Ra3.2 is completed. The entire process is monitored and monitored for process parameters and alarms for abnormalities through the information input terminal 51 of the electronic control terminal 5, realizing closed-loop control of the integrated cleaning-grinding operation.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A surface cleaning and polishing equipment for hardware parts, comprising a polishing chamber, wherein an ultrasonic cleaning tank is provided within the polishing chamber for surface cleaning of the workpiece to be processed, characterized in that: The ultrasonic cleaning tank is provided with a tooling lifting mechanism at one end, which is used to adjust the vertical displacement of the workpiece to be processed; a grinding mechanism is provided on one side of the ultrasonic cleaning tank, which is used to grind the surface of the workpiece to be processed; the tooling lifting mechanism includes a lifting linear module, a lifting arm provided on the sliding side of the lifting linear module, and a tooling clamping plate provided at the end of the lifting arm. The lifting linear module is used to adjust the vertical displacement of the lifting arm, and the tooling clamping plate is used to install and limit the workpiece to be processed.

2. The surface cleaning and polishing equipment for hardware parts according to claim 1, characterized in that: An electronic control terminal is provided on one side of the grinding chamber. The electronic control terminal is used to control the operation of each mechanism. The electronic control terminal includes a display controller and an information input terminal electrically connected to the display controller.

3. The surface cleaning and polishing equipment for hardware parts according to claim 1, characterized in that: The ultrasonic cleaning tank includes a cleaning tank and an ultrasonic generator located below the cleaning tank. The ultrasonic generator is electrically connected to an electronic control terminal. The cleaning tank is used to provide a container for cleaning the workpiece to be processed. The ultrasonic generator generates ultrasonic oscillation waves.

4. The surface cleaning and polishing equipment for hardware parts according to claim 1, characterized in that: The grinding mechanism includes a vertical adjustment component mounted on one side of the ultrasonic cleaning tank via a support frame, a horizontal adjustment component mounted on one side of the vertical adjustment component, a longitudinal adjustment component mounted on the sliding side of the horizontal adjustment component, and a grinding component mounted on the sliding end of the longitudinal adjustment component. The vertical adjustment component is used to adjust the vertical displacement of the grinding component, the horizontal adjustment component is used to adjust the horizontal displacement of the grinding component, and the longitudinal adjustment component is used to adjust the longitudinal displacement of the grinding component. The grinding component is used to grind the workpiece to be processed.

5. The surface cleaning and polishing equipment for hardware parts according to claim 4, characterized in that: The support frame includes two support columns installed in the grinding chamber and a support beam connected to the top of the two support columns. One side of the support column is provided with a sliding groove, and at least one sliding block is slidably connected in the sliding groove.

6. The surface cleaning and polishing equipment for hardware parts according to claim 5, characterized in that: The vertical adjustment assembly includes a drive motor mounted on the support beam via a motor plate, a threaded screw mounted on the output end of the drive motor via a flange, a screw shaft seat at one end of the threaded screw, and a screw nut seat passing through the threaded screw. The screw shaft seat is fixedly connected to the grinding chamber, and the screw nut seat is connected to the horizontal adjustment assembly. The drive motor drives the threaded screw to rotate, the threaded screw transmits the torque of the drive motor to the screw nut seat, the screw shaft seat cooperates with the rotation of the threaded screw, and the screw nut seat cooperates with the threaded screw to convert the rotational motion into linear motion along the axial direction. The screw nut seat drives the horizontal adjustment assembly to generate vertical displacement.

7. The surface cleaning and polishing equipment for hardware parts according to claim 6, characterized in that: The lateral adjustment assembly includes a linear drive module disposed on one side of the lead screw nut seat, a sliding connecting plate disposed on one side of the linear drive module, and a sliding seat slidably connected to the sliding connecting plate. One side of the sliding seat is connected to the longitudinal adjustment module. The linear drive module is used to drive the sliding seat to generate lateral displacement. The sliding connecting plate is used to transmit vertical adjustment displacement. The sliding seat is used to transmit the lateral displacement of the linear drive module to the longitudinal adjustment module.

8. The surface cleaning and polishing equipment for hardware parts according to claim 7, characterized in that: The sliding connecting plate is provided with two connecting holes that penetrate the two supporting columns. One side of the connecting hole is connected to the sliding block, and a connecting groove is provided between the two connecting holes. The connecting groove is slidably connected to the sliding seat.

9. The surface cleaning and polishing equipment for hardware parts according to claim 7, characterized in that: The longitudinal adjustment component includes a linear module disposed on one side of the sliding seat, a guide rail disposed on each side of the linear module, and a slider slidably connected to the guide rail. The linear module is used to drive the grinding component to perform longitudinal displacement adjustment.

10. The surface cleaning and polishing equipment for hardware parts according to claim 9, characterized in that: The grinding assembly includes a grinding motor mounted on the linear module via a motor bracket and a grinding part located at the output end of the grinding motor. One side of the motor bracket is fixedly connected to the slider. The grinding motor is used to drive the grinding part to rotate, and the grinding part is used to directly contact the workpiece to be processed for surface treatment.

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