Efficient high-precision flow and polishing equipment for complex surface of parts

Abstract

The utility model provides a kind of high-efficiency high-precision flow of part complex surface is changed and polished equipment, including rack, the upper portion of the rack is equipped with X-axis moving mechanism, X-axis moving mechanism is connected with Y-axis moving mechanism;The Y-axis moving mechanism is connected with R-axis rotating mechanism, and R-axis rotating mechanism is connected with Z-axis moving mechanism;X-axis moving mechanism, Y-axis moving mechanism, R-axis rotating mechanism and Z-axis moving mechanism form four-axis linkage mechanism;Z-axis moving mechanism is connected with first rotating mechanism, and rotatable polishing tank is equipped below first rotating mechanism;First rotating mechanism includes rotation drive motor and the polishing shaft connected with rotation drive motor.Ultrasonic transducer drives the ultrasonic vibration of complex curved surface annular part of polishing shaft and polishing shaft clamping end clamping, so that complex curved surface annular part narrow angle inner surface is exposed again, and then the high-efficiency flow of complex curved surface part is changed and polished.

Description

Technical Field

[0001] This invention relates to the field of precision and ultra-precision machining technology, and in particular to a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts. Background Technology

[0002] With the widespread application of complex curved surface parts in aerospace, automotive parts, mold making, and other fields, the requirements for equipment performance and shape are constantly increasing, placing increasingly stringent demands on the machining quality, efficiency, and cost of complex curved surface parts. The variable curvature of complex curved surfaces makes it difficult for conventional polishing tools to fit snugly against the surface to be polished, resulting in poor machining accuracy and low efficiency. Therefore, it is imperative to develop new, efficient, high-quality, and low-cost high-precision polishing technologies and equipment for complex curved surface parts. Summary of the Invention

[0003] To overcome the above problems, the present invention provides a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts.

[0004] The technical solution adopted in this invention is: a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts, comprising a frame, an X-axis moving mechanism on the upper part of the frame, a Y-axis moving mechanism connected to the X-axis moving mechanism; an R-axis rotating mechanism connected to the Y-axis moving mechanism, and a Z-axis moving mechanism connected to the R-axis rotating mechanism; the X-axis moving mechanism, Y-axis moving mechanism, R-axis rotating mechanism and Z-axis moving mechanism form a four-axis linkage mechanism;

[0005] The Z-axis moving mechanism is connected to a first rotating mechanism, which includes a self-rotating drive motor, a first bushing, and a polishing shaft connected to the self-rotating drive motor via the first bushing. The lower end of the polishing shaft is a clamping end. An ultrasonic vibration system is mounted on the polishing shaft, which includes an ultrasonic transducer and a conductive slip ring. The lower end of the ultrasonic transducer is connected to the polishing shaft, and the conductive slip ring is connected to the ultrasonic transducer. The ultrasonic transducer is connected to an ultrasonic generator through the conductive slip ring. The ultrasonic generator sends an electrical signal to the ultrasonic transducer via the conductive slip ring. The ultrasonic transducer converts the electrical signal into mechanical energy, which drives the polishing shaft and the complex curved annular part clamped at the polishing shaft clamping end to vibrate ultrasonically. This causes the narrow inner surface of the complex curved annular part to be exposed again, thereby achieving high-efficiency rheological polishing of the complex curved part.

[0006] A contact polishing fluid cooling module is provided on the Z-axis moving mechanism and located on one side of the first rotating mechanism. The contact polishing fluid cooling module includes a retainer, a cooling plate, and a cooling block. The retainer has a mounting surface parallel to the polishing shaft, and a cooling plate is mounted on the lower end of the mounting surface facing the polishing shaft. A cooling block is mounted on the outer wall of the cooling plate. The cooling plate cools the cooling block, so that during the polishing process, the cooling block comes into contact with the high-speed rotating polishing fluid and undergoes heat exchange, thereby maintaining the temperature of the polishing fluid.

[0007] A worktable is provided on the frame and below the first rotating mechanism. The worktable is connected to a polishing tank via a second rotating mechanism. The polishing tank is located below the polishing shaft and contains a rheological polishing liquid. The second rotating mechanism includes a turntable, a second bushing, a reducer, and a drive motor. The turntable is located at the bottom center of the polishing tank and is bolted to it. The output end of the drive motor is connected to the input end of the reducer, and the output shaft of the reducer passes through a support plate and is connected to the turntable. The second bushing is located on the outer periphery of the output shaft of the reducer. The second rotating mechanism is fixed as a whole on the support plate, which is horizontally mounted on the frame. Both the self-rotating drive motor and the drive motor can rotate clockwise or counterclockwise.

[0008] Furthermore, the X-axis moving mechanism includes an X-axis linear moving module a and an X-axis linear moving module b respectively disposed on the left and right sides of the frame;

[0009] The X-axis linear motion module a includes an X-axis base plate a, an X-axis drive motor a, an X-axis motor base a, an X-axis screw a, an X-axis threaded tube a, an X-axis slider a, an X-axis slide rail a, and an X-axis bearing base a;

[0010] The X-axis linear motion module b includes an X-axis base plate b, an X-axis drive motor b, an X-axis motor base b, an X-axis screw b, an X-axis threaded tube b, an X-axis slider b, an X-axis slide rail b, and an X-axis bearing seat b;

[0011] The X-axis base plate a and X-axis base plate b are fixed to the left and right sides of the frame, respectively. X-axis slide rail a and X-axis slide rail b are respectively provided on the X-axis base plate a and X-axis slide rail b. X-axis slider a and X-axis slider b are slidably connected to the X-axis slide rail a and X-axis slide rail b, respectively. The top of X-axis slider a and X-axis slider b are connected to a crossbeam slide plate.

[0012] The X-axis screws a and b are symmetrically arranged above the crossbeam slide plate. X-axis threaded tubes a and b are respectively threaded onto X-axis screws a and b. The bottoms of X-axis threaded tubes a and b are fixedly connected to the crossbeam slide plate. One end of X-axis screw a is supported on X-axis bearing seat a, and the other end of X-axis screw a is connected to the output end of X-axis drive motor a, which is supported on X-axis motor seat a. One end of X-axis screw b is supported on X-axis bearing seat b, and the other end of X-axis screw b is connected to the output end of X-axis drive motor b, which is supported on X-axis motor seat b.

[0013] The X-axis drive motors a and b operate simultaneously at the same speed, and the X-axis threaded tubes a and b together drive the crossbeam slide plate to move along the X-axis.

[0014] Furthermore, the Y-axis moving mechanism is installed entirely below the crossbeam slide plate, and the Y-axis moving mechanism includes a driving part, a moving part, and a fixing part;

[0015] The driving part includes a Y-axis drive motor, a Y-axis screw, and a Y-axis threaded tube; the fixed part includes a Y-axis bearing seat, a Y-axis motor seat, and a Y-axis base plate; the moving part includes a Y-axis sliding base plate, a Y-axis slider, and a Y-axis slide rail; the top surface of the Y-axis base plate is fixedly connected to the bottom surface of the crossbeam slide plate; a pair of Y-axis slide rails are symmetrically arranged on the Y-axis base plate; a Y-axis slider is slidably connected to each of the pair of Y-axis slide rails; and the outer sides of the two Y-axis sliders are connected to the Y-axis sliding base plate.

[0016] The Y-axis screw is positioned between a pair of Y-axis slide rails. One end of the Y-axis screw is supported on a Y-axis bearing seat, and the other end of the Y-axis screw is connected to the output end of a Y-axis drive motor, which is mounted on a Y-axis motor seat. A Y-axis threaded tube is threaded onto the Y-axis screw, and the Y-axis threaded tube is fixedly connected to a Y-axis sliding base plate. The Y-axis drive motor drives the Y-axis sliding base plate to move along the Y-axis.

[0017] Furthermore, the R-axis rotation mechanism is mounted on the Y-axis sliding base plate, and the R-axis rotation mechanism is a turntable; one side of the R-axis rotation mechanism is fixedly connected to the Z-axis base plate, and the other side is fixedly connected to the Y-axis sliding base plate, so that the Z-axis moving mechanism can rotate around the R-axis relative to the Y-axis sliding base plate.

[0018] Furthermore, the Z-axis moving mechanism is integrally mounted on the R-axis rotating mechanism; the Z-axis moving mechanism includes a Z-axis drive unit, a Z-axis moving unit, and a Z-axis fixing unit; the Z-axis drive unit includes a Z-axis drive motor, a Z-axis screw, and a Z-axis threaded tube; the Z-axis fixing unit includes a Z-axis bearing seat, a Z-axis motor seat, and a Z-axis base plate; the Z-axis moving unit includes a Z-axis sliding base plate, a Z-axis slider, and a Z-axis slide rail.

[0019] The Z-axis base plate is fixedly connected to the output end of the R-axis rotation mechanism. A pair of left and right Z-axis slide rails are provided on the front side of the Z-axis base plate. A Z-axis slider is slidably connected to each of the pair of Z-axis slide rails, and the Z-axis sliding base plate is connected to both Z-axis sliders.

[0020] The Z-axis screw is positioned between a pair of Z-axis slide rails, and the Z-axis screw is parallel to the Z-axis slide rails. One end of the Z-axis screw is supported on a Z-axis bearing seat, and the other end of the Z-axis screw is connected to a Z-axis drive motor, which is supported on a Z-axis motor seat. A Z-axis threaded tube is threaded onto the Z-axis screw, and the Z-axis threaded tube is fixedly connected to a Z-axis sliding base plate. The Z-axis sliding base plate moves along the Z-axis under the drive of the Z-axis drive motor.

[0021] The beneficial effects of this invention are: it has the advantages of wide versatility in processing products, high processing efficiency, good processing effect, and low manufacturing cost; the four-axis linkage of X, Y, Z, and R axes allows the relative position to be freely adjusted within a certain range, which can greatly meet the needs of polishing complex curved surfaces of parts; under the drive of the first and second rotating mechanisms, the polishing slurry moves relative to the parts, causing the force rheological polishing slurry with shear thickening properties to instantly form a flexible "quasi-fixed abrasive" in the local processing area, thereby achieving efficient and precise polishing of complex curved surfaces of parts; the contact polishing slurry cooling module can cool the polishing slurry during operation, effectively control the polishing slurry temperature, and ensure the stability of the polishing process; the ultrasonic vibration on the polishing shaft can effectively avoid the phenomenon of polishing slurry agglomeration on the surface of parts during the polishing of complex curved surfaces, thereby achieving high-efficiency rheological polishing of complex curved surfaces of parts. Attached Figure Description

[0022] Figure 1 This is an axial view of a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts according to the present invention;

[0023] Figure 2 This is an axial view of a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts, as described in this invention, after removing the door panel;

[0024] Figure 3 Axial view of the polishing tank and the second rotating mechanism;

[0025] Figure 4 Axial views of the first rotating mechanism, the Z-axis moving mechanism, and the R-axis rotating mechanism;

[0026] Figure 5 Axial view of the first rotating mechanism and ultrasonic vibration system

[0027] Figure 6 This is an axis view of the Y-axis moving mechanism;

[0028] Figure 7 This is an axis view of the X-axis moving mechanism;

[0029] Figure 8 Axial view of the contact polishing fluid cooling module;

[0030] Figure 9 Axial view of the machined part for the example embodiment;

[0031] Figure 10a A schematic diagram showing the effect of the part before processing; Figure 10b A schematic diagram illustrating the effect of ultrasonic vibration during the machining process of a part.

[0032] Figure 11 Axial view of the machining parts clamping for an example embodiment;

[0033] Figure 12The surface roughness test results are obtained from the processing experiment. Detailed Implementation

[0034] The technical solution of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They 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, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0037] Referring to the accompanying drawings, a high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts includes a frame 1. An X-axis moving mechanism 90 is mounted on the upper part of the frame 1, and a Y-axis moving mechanism 50 is connected to the X-axis moving mechanism 90. An R-axis rotating mechanism 40 is connected to the Y-axis moving mechanism 50, and a Z-axis moving mechanism 30 is connected to the R-axis rotating mechanism 40. The X-axis moving mechanism 90, Y-axis moving mechanism 50, R-axis rotating mechanism 40, and Z-axis moving mechanism 30 form a four-axis linkage mechanism.

[0038] The Z-axis moving mechanism is connected to a first rotating mechanism 20. The first rotating mechanism 20 includes a self-rotating drive motor 23, a first bushing 22, and a polishing shaft 210 connected to the self-rotating drive motor 23 via the first bushing 22. The lower end of the polishing shaft 210 is a clamping end, which is mainly used for clamping parts and can also be used for mounting polishing heads, polishing brushes, etc. The polishing shaft 210 is easy to disassemble and can be replaced to meet the polishing needs of different parts.

[0039] An ultrasonic vibration system 21 is mounted on the polishing shaft 210. The ultrasonic vibration system 21 includes an ultrasonic transducer 211 and a conductive slip ring 212. The ultrasonic transducer 211 provides ultrasonic vibration to the polishing shaft. The lower end of the ultrasonic transducer 211 is connected to the polishing shaft 210, and the conductive slip ring 212 is connected to the ultrasonic transducer 211. The ultrasonic transducer 211 is connected to an ultrasonic generator through the conductive slip ring 212. The ultrasonic generator sends an electrical signal to the ultrasonic transducer 211 via the conductive slip ring 212. The ultrasonic transducer 211 converts the electrical signal into mechanical energy, which drives the polishing shaft 210 and the complex curved annular part 100 clamped at the clamping end of the polishing shaft 210 to vibrate ultrasonically. This causes the narrow-angle inner surface of the complex curved annular part 100 to be exposed again, thereby achieving high-efficiency rheological polishing of the complex curved part.

[0040] The Z-axis moving mechanism is provided with a contact polishing fluid cooling module 111 located on one side of the first rotating mechanism 20. The contact polishing fluid cooling module 111 can cool the mechanical rheological polishing fluid during operation, thus ensuring polishing efficiency continuously.

[0041] The contact polishing slurry cooling module 111 includes a retainer 112, a cooling plate 113, and a cooling block 114. The retainer 112 has a mounting surface parallel to the polishing shaft 210. The cooling plate 113 is mounted on the lower end of the mounting surface facing the polishing shaft 210, and the cooling block 114 is mounted on the outer wall of the cooling plate 113. The cooling plate 113 cools the cooling block 114. During the polishing process, the cooling plate 113 can cool the slurry when energized, keeping the cooling block 114 at a low temperature. The higher-temperature polishing slurry will come into contact with the lower-temperature cooling block 114 and exchange heat during the polishing process, thereby avoiding the weakening of the shear thickening effect due to the increase in polishing slurry temperature during the polishing process, and continuously ensuring polishing efficiency.

[0042] A worktable 2 is provided on the frame 1 and below the first rotating mechanism 20. The worktable 2 is connected to a polishing tank 3 through the second rotating mechanism 10. The polishing tank 3 is located below the polishing shaft 210 and contains a rheological polishing liquid. The second rotating mechanism 10 includes a turntable 5, a second bushing 6, a reducer 7, and a drive motor 8. The turntable 5 is located at the bottom center of the polishing tank 3 and is connected to it by bolts, which facilitates the installation, disassembly, and cleaning of the polishing tank and meets the requirements of the polishing process.

[0043] The output end of the drive motor 8 is connected to the input end of the reducer 7, and the output shaft of the reducer 7 passes through the support plate 9 and is connected to the turntable 5; the second bushing 6 is set on the outer periphery of the output shaft of the reducer 7; the second rotating mechanism 10 is fixed on the support plate 9 as a whole, and the support plate 9 is horizontally mounted on the frame 1.

[0044] It should be noted that both the self-rotating drive motor 23 and the drive motor 8 can rotate clockwise or counterclockwise.

[0045] In an embodiment of the present invention, the X-axis moving mechanism 90 includes an X-axis linear moving module a60 and an X-axis linear moving module b80 respectively disposed on the left and right sides of the frame 1;

[0046] The X-axis linear motion module a60 includes an X-axis base plate a61, an X-axis drive motor a62, an X-axis motor base a63, an X-axis screw a64, an X-axis threaded tube a65, an X-axis slider a66, an X-axis slide rail a67, and an X-axis bearing seat a68.

[0047] The X-axis linear motion module b80 includes an X-axis base plate b81, an X-axis drive motor b82, an X-axis motor base b83, an X-axis screw b84, an X-axis threaded tube b85, an X-axis slider b86, an X-axis slide rail b87, and an X-axis bearing seat b88.

[0048] The X-axis base plate a61 and X-axis base plate b81 are fixed on the left and right sides of the frame 1, respectively. X-axis slide rails a67 and b87 are respectively provided on the X-axis base plate a61 and X-axis slide rail b87. X-axis slider a66 and X-axis slider b (86) are slidably connected on the X-axis slide rails a67 and X-axis slide rail b87, respectively. The top of the X-axis slider a66 and X-axis slider b (86) are connected to the crossbeam slide plate 70.

[0049] The X-axis screws a64 and b84 are symmetrically arranged above the crossbeam slide plate 70. X-axis threaded tubes a65 and b85 are threadedly connected to the X-axis screws a64 and b84 respectively. The bottoms of the X-axis threaded tubes a65 and b85 are fixedly connected to the crossbeam slide plate 70. One end of the X-axis screw a64 is supported on the X-axis bearing seat a68, and the other end is connected to the output end of the X-axis drive motor a62, which is supported on the X-axis motor seat a63. One end of the X-axis screw b84 is supported on the X-axis bearing seat b88, and the other end is connected to the output end of the X-axis drive motor b82, which is supported on the X-axis motor seat b83.

[0050] The X-axis drive motors a62 and b82 operate simultaneously at the same speed, and the X-axis threaded tubes a65 and b85 together drive the crossbeam slide plate 70 to move along the X-axis.

[0051] In an embodiment of the present invention, the Y-axis moving mechanism 50 is installed entirely below the crossbeam slide plate 70, and the Y-axis moving mechanism 50 includes a driving part, a moving part, and a fixing part;

[0052] The driving part includes a Y-axis drive motor 51, a Y-axis screw 53, and a Y-axis threaded tube 54. The fixed part includes a Y-axis bearing seat 59, a Y-axis motor seat 52, and a Y-axis base plate 58. The moving part includes a Y-axis sliding base plate 56, a Y-axis slider 55, and a Y-axis slide rail 57. The top surface of the Y-axis base plate 58 is fixedly connected to the bottom surface of the crossbeam slide plate 70. A pair of Y-axis slide rails 57 are symmetrically arranged on the Y-axis base plate 58. A Y-axis slider 55 is slidably connected to each pair of Y-axis slide rails 57. The outer sides of the two Y-axis sliders 55 are connected to the Y-axis sliding base plate 56.

[0053] The Y-axis screw 53 is disposed between a pair of Y-axis slide rails 57. One end of the Y-axis screw 53 is supported on the Y-axis bearing seat 59, and the other end of the Y-axis screw 53 is connected to the output end of the Y-axis drive motor 51. The Y-axis drive motor 51 is mounted on the Y-axis motor seat 52. A Y-axis threaded tube 54 is threadedly connected to the Y-axis screw 53, and the Y-axis threaded tube 54 is fixedly connected to the Y-axis sliding base plate 56. The Y-axis drive motor 51 drives the Y-axis sliding base plate 56 to move along the Y-axis.

[0054] In an embodiment of the present invention, the R-axis rotation mechanism 40 is a turntable structure. One side of the R-axis rotation mechanism 40 is fixedly connected to the Z-axis base plate 37, and the other side is fixedly connected to the Y-axis sliding base plate 56, so that the Z-axis moving mechanism 30 can rotate around the R-axis relative to the Y-axis sliding base plate 56.

[0055] In an embodiment of the present invention, the Z-axis moving mechanism 30 is integrally mounted on the R-axis rotating mechanism 40; the Z-axis moving mechanism 30 includes a Z-axis driving part, a Z-axis moving part, and a Z-axis fixing part; the Z-axis driving part includes a Z-axis drive motor 31, a Z-axis screw 38, and a Z-axis threaded tube 34; the Z-axis fixing part includes a Z-axis bearing seat 39, a Z-axis motor seat 32, and a Z-axis base plate 37; the Z-axis moving part includes a Z-axis sliding base plate 36, a Z-axis slider 35, and a Z-axis slide rail 33;

[0056] The Z-axis base plate 37 is fixedly connected to the output end of the R-axis rotation mechanism 40. A pair of left and right Z-axis slide rails 33 are provided on the front side of the Z-axis base plate 37. A Z-axis slider 35 is slidably connected to each of the pair of Z-axis slide rails 33. A Z-axis sliding base plate 36 is connected to both Z-axis sliders 35.

[0057] The Z-axis screw 38 is disposed between a pair of Z-axis slide rails 33, and the Z-axis screw 38 is parallel to the Z-axis slide rails 33; one end of the Z-axis screw 38 is supported on the Z-axis bearing seat 39, and the other end of the Z-axis screw 38 is connected to the Z-axis drive motor 31, which is supported on the Z-axis motor seat 32; a Z-axis threaded tube 34 is threadedly connected to the Z-axis screw 38, and the Z-axis threaded tube 34 is fixedly connected to the Z-axis sliding base plate 36; the Z-axis sliding base plate 36 moves along the Z-axis under the drive of the Z-axis drive motor 31.

[0058] In the implementation of this invention, the cooling chip 113 is powered by a 24V DC power supply; in order to enhance the cooling effect, the contact area between the cooling block 114 and the polishing liquid is designed with spaced needle-like arrangement to increase the contact area with the polishing liquid and enhance the cooling effect.

[0059] The technical solution of the present invention will be further explained below in conjunction with processing experiments:

[0060] Implementation Case 1:

[0061] The machined part is a complex curved ring-shaped part 100 (see Figure 9 The material is 316L stainless steel, and the initial surface roughness Ra of the complex curved annular part 100 is 210 nm. During processing, the complex curved annular part 100 is clamped on the polishing shaft 210. A centering positioning plate 101 is placed between two complex curved annular parts 100 to ensure that the distance between the two complex curved annular parts 100 is equal and that the axis is located at the axis of the polishing shaft 210. The bottom end is fixed to the polishing shaft 210 by screws 102 (see...). Figure 11 Simultaneously, to ensure processing results, the R-axis rotation mechanism 40 was adjusted so that the polishing shaft 210 had a 5-degree inclination angle with the vertical centerline. During processing, the polishing fluid was placed in the polishing tank 3, and the polishing shaft 210 and the polishing tank 3 rotated in opposite directions. The rotation speed of the polishing shaft 210 was 5 rpm, and the rotation speed of the polishing tank 3 was 120 rpm. The rotation of the polishing tank 3 caused the polishing fluid to rotate. To ensure consistent polishing, the polishing tank 3 rotated forward and backward at the same speed for the same amount of time during the processing, and the corresponding polishing shaft 210 was also adjusted in direction. In addition, during the processing, the ultrasonic transducer 211 applied ultrasonic vibration at a frequency of 28 kHz and a power of 800 W for 5 seconds at 2-minute intervals. A roughness test was performed every 10 minutes during the processing. After a total of 60 minutes of polishing, the surface roughness of the complex curved annular part 100 decreased to below 10 nm. The experimental results show (see...) Figure 12 The polishing device of the present invention can achieve efficient and high-quality polishing of the outer surface of complex curved annular parts 100 (within 60 minutes, the roughness can be reduced from 210nm to below 10nm).

[0062] It should be noted that the polishing slurries used in this invention refer to force-rheological polishing slurries. The complex curved surface parts mentioned in this invention are not limited to... Figure 9 The shape of the parts can be any complex curved surface.

[0063] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this invention should not be considered as limited to the specific forms stated in the embodiments. The scope of protection of this invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A high-efficiency, high-energy rheological polishing device for complex curved surfaces of parts, characterized in that: The system includes a frame (1), on which an X-axis moving mechanism (90) is provided, and a Y-axis moving mechanism (50) is connected to the X-axis moving mechanism (90); an R-axis rotating mechanism (40) is connected to the Y-axis moving mechanism (50), and a Z-axis moving mechanism (30) is connected to the R-axis rotating mechanism (40); the X-axis moving mechanism (90), the Y-axis moving mechanism (50), the R-axis rotating mechanism (40), and the Z-axis moving mechanism (30) form a four-axis linkage mechanism. The Z-axis moving mechanism is connected to a first rotating mechanism (20), which includes a self-rotating drive motor (23), a first bushing (22), and a polishing shaft (210) connected to the self-rotating drive motor (23) via the first bushing (22). The lower end of the polishing shaft (210) is a clamping end. An ultrasonic vibration system (21) is mounted on the polishing shaft (210), which includes an ultrasonic transducer (211) and a conductive slip ring (212). The lower end of the ultrasonic transducer (211) is connected to the polishing shaft (210), and the conductive slip ring (212) is connected to the polishing shaft (210). The ultrasonic transducer (211) is connected to the ultrasonic generator through the conductive slip ring (212); the ultrasonic generator sends an electrical signal to the ultrasonic transducer (211) through the conductive slip ring (212), and the ultrasonic transducer (211) converts the electrical signal into mechanical energy, which drives the polishing shaft (210) and the complex curved surface annular part (100) clamped at the clamping end of the polishing shaft (210) to vibrate ultrasonically, so that the narrow inner surface of the complex curved surface annular part (100) is exposed again, thereby realizing the high-efficiency rheological polishing of the complex curved surface part; A worktable (2) is provided on the frame (1) and below the first rotating mechanism (20). The worktable (2) is connected to a polishing tank (3) through the second rotating mechanism (10). The polishing tank (3) is located below the polishing shaft (210) and contains a rheological polishing liquid. The second rotating mechanism (10) includes a turntable (5), a second bushing (6), a reducer (7), and a drive motor (8). The turntable (5) is located at the bottom center of the polishing tank (3) and is connected to it by bolts. The output end of the drive motor (8) is connected to the input end of the reducer (7). The output shaft of the reducer (7) passes through the support plate (9) and is connected to the turntable (5). The second bushing (6) is located on the outer periphery of the output shaft of the reducer (7). The second rotating mechanism (10) is fixed as a whole on the support plate (9), which is horizontally mounted on the frame (1). Both the self-rotating drive motor (23) and the drive motor (8) can rotate clockwise or counterclockwise. A contact polishing slurry cooling module (111) is provided on the Z-axis moving mechanism and located on one side of the first rotating mechanism (20). The contact polishing slurry cooling module (111) includes a retainer (112), a cooling plate (113), and a cooling block (114). The retainer (112) has a mounting surface parallel to the polishing shaft (210). The cooling plate (113) is mounted on the lower end of the mounting surface facing the polishing shaft (210). The cooling block (114) is mounted on the outer wall of the cooling plate (113). The cooling plate (113) cools the cooling block (114), so that during the polishing process, the cooling block (114) comes into contact with the high-speed rotating polishing slurry and exchanges heat, thereby maintaining the temperature of the polishing slurry.

2. The high-efficiency, high-energy rheological polishing equipment for complex curved surfaces of parts as described in claim 1, characterized in that: The X-axis moving mechanism (90) includes an X-axis linear moving module a (60) and an X-axis linear moving module b (80) respectively disposed on the left and right sides of the frame (1); The X-axis linear motion module a (60) includes an X-axis base plate a (61), an X-axis drive motor a (62), an X-axis motor base a (63), an X-axis screw a (64), an X-axis threaded tube a (65), an X-axis slider a (66), an X-axis slide rail a (67), and an X-axis bearing seat a (68). The X-axis linear motion module b (80) includes an X-axis base plate b (81), an X-axis drive motor b (82), an X-axis motor base b (83), an X-axis screw b (84), an X-axis threaded tube b (85), an X-axis slider b (86), an X-axis slide rail b (87), and an X-axis bearing seat b (88). The X-axis base plate a (61) and X-axis base plate b (81) are fixed on the left and right sides of the frame (1) respectively. X-axis slide rail a (67) and X-axis slide rail b (87) are respectively provided on the X-axis base plate a (61) and X-axis slide rail b (87). X-axis slider a (66) and X-axis slider b (86) are slidably connected on the X-axis slide rail a (67) and X-axis slide rail b (87) respectively. The top of X-axis slider a (66) and X-axis slider b (86) are connected to a crossbeam slide plate (70). The X-axis screws a (64) and b (84) are symmetrically arranged above the crossbeam slide plate (70). X-axis threaded tubes a (65) and b (85) are threaded onto the X-axis screws a (64) and b (84) respectively. The bottoms of the X-axis threaded tubes a (65) and b (85) are fixedly connected to the crossbeam slide plate (70). One end of the X-axis screw a (64) is supported on the X-axis bearing seat a (…). On 68), the other end of the X-axis screw a (64) is connected to the output end of the X-axis drive motor a (62), and the X-axis drive motor a (62) is supported on the X-axis motor seat a (63); one end of the X-axis screw b (84) is supported on the X-axis bearing seat b (88), and the other end of the X-axis screw b (84) is connected to the output end of the X-axis drive motor b (82), and the X-axis drive motor b (82) is supported on the X-axis motor seat b (83); The X-axis drive motors a (62) and b (82) operate simultaneously and at the same speed, and the X-axis threaded tubes a (65) and b (85) together drive the crossbeam slide plate (70) to move along the X-axis.

3. The high-efficiency, high-energy rheological polishing equipment for complex curved surfaces of parts as described in claim 2, characterized in that: The Y-axis moving mechanism (50) is installed entirely below the crossbeam slide plate (70), and the Y-axis moving mechanism (50) includes a driving part, a moving part and a fixing part; The driving part includes a Y-axis drive motor (51), a Y-axis screw (53), and a Y-axis threaded tube (54). The fixed part includes a Y-axis bearing seat (59), a Y-axis motor seat (52), and a Y-axis base plate (58). The moving part includes a Y-axis sliding base plate (56), a Y-axis slider (55), and a Y-axis slide rail (57). The top surface of the Y-axis base plate (58) is fixedly connected to the bottom surface of the crossbeam slide plate (70). A pair of Y-axis slide rails (57) are symmetrically arranged on the Y-axis base plate (58). A Y-axis slider (55) is slidably connected to each pair of Y-axis slide rails (57). The outer sides of the two Y-axis sliders (55) are connected to the Y-axis sliding base plate (56). The Y-axis screw (53) is disposed between a pair of Y-axis slide rails (57). One end of the Y-axis screw (53) is supported on the Y-axis bearing seat (59), and the other end of the Y-axis screw (53) is connected to the output end of the Y-axis drive motor (51). The Y-axis drive motor (51) is mounted on the Y-axis motor seat (52). A Y-axis threaded tube (54) is threadedly connected to the Y-axis screw (53), and the Y-axis threaded tube (54) is fixedly connected to the Y-axis sliding base plate (56). The Y-axis drive motor (51) drives the Y-axis sliding base plate (56) to move along the Y-axis.

4. The high-efficiency, high-energy rheological polishing equipment for complex curved surfaces of parts as described in claim 3, characterized in that: The R-axis rotation mechanism (40) is mounted on the Y-axis sliding base plate (56), and the R-axis rotation mechanism (40) is a turntable; one side of the R-axis rotation mechanism (40) is fixedly connected to the Z-axis moving mechanism (30), and the other side is fixedly connected to the Y-axis sliding base plate (56), so that the Z-axis moving mechanism (30) can rotate around the R-axis relative to the Y-axis sliding base plate (56).

5. The high-efficiency, high-energy rheological polishing equipment for complex curved surfaces of parts as described in claim 4, characterized in that: The Z-axis moving mechanism (30) is integrally mounted on the R-axis rotating mechanism (40); the Z-axis moving mechanism (30) includes a Z-axis drive unit, a Z-axis moving unit, and a Z-axis fixing unit; the Z-axis drive unit includes a Z-axis drive motor (31), a Z-axis screw (38), and a Z-axis threaded tube (34); the Z-axis fixing unit includes a Z-axis bearing seat (39), a Z-axis motor seat (32), and a Z-axis base plate (37); the Z-axis moving unit includes a Z-axis sliding base plate (36), a Z-axis slider (35), and a Z-axis slide rail (33); The Z-axis base plate (37) is fixedly connected to the output end of the R-axis rotation mechanism (40). A pair of left and right Z-axis slide rails (33) are provided on the front side of the Z-axis base plate (37). A Z-axis slider (35) is slidably connected to each pair of Z-axis slide rails (33), and a Z-axis sliding base plate (36) is connected to both Z-axis sliders (35). The Z-axis screw (38) is positioned between a pair of Z-axis slide rails (33) and is parallel to the Z-axis slide rails (33). One end of the Z-axis screw (38) is supported on the Z-axis bearing seat (39), and the other end of the Z-axis screw (38) is connected to the Z-axis drive motor (31), which is supported on the Z-axis motor seat (32). A Z-axis threaded tube (34) is threaded onto the Z-axis screw (38), and the Z-axis threaded tube (34) is fixedly connected to the Z-axis sliding base plate (36). The Z-axis sliding base plate (36) moves along the Z-axis under the drive of the Z-axis drive motor (31).

Images