R-angle polishing device and method for hard and brittle material rotary body workpiece

Abstract

The application discloses an R-angle polishing device and method for a hard and brittle material rotary body workpiece. The R-angle polishing device comprises a rack, a workpiece adjusting module arranged on the rack, and a workpiece grinding mechanism. The workpiece adjusting module comprises a workpiece clamping mechanism, a self-rotation driving mechanism, a workpiece position adjusting mechanism, and a swing driving mechanism. The workpiece clamping mechanism is used for clamping the rotary body workpiece. The rotary body workpiece has a circular arc chamfer, and the circular arc chamfer is an R-angle. During processing, the R-angle center of the rotary body workpiece coincides with the swing center axis of the swing driving mechanism in a vertical plane perpendicular to the swing center axis of the swing driving mechanism and coinciding with the axis of the rotary body workpiece. The R-angle polishing device can automatically polish the R-angle of the rotary body workpiece, has high processing efficiency, can improve the uniformity and consistency of R-angle polishing, and thus can improve the processing precision and ensure the processing quality.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, and specifically to a polishing device and method for the radius (R) of a rotating workpiece made of hard and brittle materials. Background Technology

[0002] In the processing of hard and brittle materials, such as ceramics and glass, polishing is required. For rotating workpieces made of hard and brittle materials, such as optical components, the edges need to be rounded, and this rounded angle is called the radius (R-angle). The surface quality of optical components has a crucial impact on their performance; to improve the surface quality of optical components, the R-angle needs to be polished and ground. Current polishing methods mainly rely on manual labor. Although semi-automatic R-angle grinding machines are available on the market, manual intervention is still required, resulting in low automation and low processing efficiency. Furthermore, the manual operation of the workpiece-holding fixture, which swings to move the fixture and the workpiece, to grind the R-angle, results in low precision control. This leads to over-grinding, under-grinding, or insufficient grinding of some R-angle surfaces, making it impossible to guarantee the uniformity of the R-angle surface grinding, resulting in low processing accuracy and compromised processing quality. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned problems and provide a polishing device for the R-angle of a rotating workpiece made of hard and brittle materials. This R-angle polishing device can automatically polish the R-angle of the rotating workpiece, with high processing efficiency, and can improve the uniformity and consistency of R-angle polishing, thereby improving processing accuracy and ensuring processing quality.

[0004] Another object of the present invention is to provide a method for polishing the R-angle of a rotating workpiece made of hard and brittle material.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A polishing device for the radius (R) angle of a rotating workpiece made of hard and brittle material includes a frame, a workpiece adjustment module mounted on the frame, and a workpiece grinding mechanism; wherein...

[0007] The workpiece adjustment module includes a workpiece clamping mechanism, a rotation drive mechanism, a workpiece position adjustment mechanism, and a swing drive mechanism. The workpiece clamping mechanism is used to clamp a rotating workpiece. The rotation drive mechanism is used to drive the workpiece clamping mechanism to rotate, thereby causing the rotating workpiece to rotate. The workpiece position adjustment mechanism is used to adjust the horizontal and vertical positions of the workpiece clamping mechanism. The swing drive mechanism is used to drive the workpiece clamping mechanism to swing, thereby causing the rotating workpiece to swing.

[0008] The rotating workpiece has a rounded chamfer, which is an R-angle; the workpiece grinding mechanism is used to grind the R-angle on the rotating workpiece; during processing, in a vertical plane perpendicular to the swing center axis of the swing drive mechanism and coinciding with the axis of the rotating workpiece, the center of the R-angle of the rotating workpiece coincides with the swing center axis of the swing drive mechanism.

[0009] The working principle of the above-mentioned polishing device for the R-angle of rotating workpieces made of hard and brittle materials is as follows:

[0010] The rotating workpiece 7 will have its R-angle machined by CNC. The horizontal and vertical positions of the workpiece clamping mechanism will be adjusted by the workpiece position adjustment mechanism. The horizontal and vertical positions of the workpiece clamping mechanism need to meet the following conditions: When the rotating workpiece is clamped in the workpiece clamping mechanism, the center of the R-angle of the rotating workpiece will coincide with the swing center axis of the swing drive mechanism in a vertical plane that is perpendicular to the swing center axis of the swing drive mechanism and coincides with the axis of the rotating workpiece. After the above conditions are met, the position adjustment of the workpiece clamping mechanism is completed. The rotating workpiece is clamped in the workpiece clamping mechanism; the rotation drive mechanism drives the workpiece clamping mechanism to rotate, which in turn causes the rotating workpiece to rotate; the swing drive mechanism drives the workpiece clamping mechanism and the rotating workpiece to swing back and forth together; the workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the designated position, where it contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece; after the rotating workpiece is polished, it is removed from the workpiece clamping mechanism, and the next rotating workpiece is replaced, and the above steps are repeated.

[0011] In a preferred embodiment of the present invention, the workpiece adjustment module further includes a fixed frame, and the workpiece clamping mechanism includes a fixture rotatably mounted on the fixed frame for clamping a rotating workpiece; the fixture is connected to a rotation drive mechanism; the swing drive mechanism is connected to the workpiece position adjustment mechanism, and the workpiece position adjustment mechanism is connected to the fixed frame. In the above structure, the rotation of the rotating workpiece can be achieved by driving the fixture to rotate through the rotation drive mechanism; when the swing drive mechanism is working, it can drive the workpiece position adjustment mechanism, the fixed frame, the fixture, and the rotation drive mechanism to swing synchronously.

[0012] Furthermore, the fixture includes a rotating part, a first clamping member connected to the lower end of the rotating part, and a second clamping member. An opening slot is provided between the first clamping member and the second clamping member. The rotating part, the first clamping member, and the second clamping member are an integral structure. The rotating part is rotatably connected to the fixed frame. The first clamping member and the second clamping member clamp the rotating workpiece by clamping bolts. In the above structure, the fixture adopts an integral structure, which is very simple and compact. When installing the rotating workpiece, the rotating workpiece is placed between the first clamping member and the second clamping member. By adjusting the clamping bolts, the first clamping member and the second clamping member are brought closer to each other, and the distance between the opening slots is reduced, thereby clamping the rotating workpiece. When disassembling the workpiece, the clamping bolts are loosened, and the first clamping member and the second clamping member move away from each other, realizing the disassembly of the rotating workpiece. In order to adapt to the rotating workpiece, the first clamping member and the second clamping member are arc-shaped.

[0013] Preferably, the rotation drive mechanism includes a rotation drive motor mounted on a fixed frame, a transmission rod rotatably mounted on the fixed frame, and a first belt drive mechanism that transmits the power of the rotation drive motor to the transmission rod. The transmission rod is fixedly connected to the clamp. With this structure, the rotation drive motor drives its shaft to move, which in turn drives the first belt drive mechanism, which in turn drives the transmission rod to rotate, thereby causing the clamp and the rotating workpiece to rotate synchronously.

[0014] Preferably, the swing drive mechanism includes a mounting plate mounted on the frame, a swing frame rotatably mounted on the mounting plate, a swing drive motor mounted on the mounting plate, and a second belt drive mechanism that transmits the power of the swing drive motor to the swing frame; the rotation center axis of the swing frame is the swing center axis; the swing frame is connected to the workpiece position adjustment mechanism. By adopting the above structure, the swing drive motor drives its shaft to move, which in turn drives the second belt drive mechanism to move, thereby driving the swing frame to rotate. This causes the workpiece position adjustment mechanism, mounting plate, rotation drive mechanism, fixture, and rotating workpiece to swing synchronously. By driving the rotating workpiece to swing, polishing of the entire arc surface of the R-angle of the rotating workpiece can be achieved.

[0015] Preferably, the workpiece position adjustment mechanism includes a horizontal sliding block, a horizontal adjustment component, and a vertical adjustment component disposed between the fixed frame and the swing frame; wherein,

[0016] The horizontal adjustment assembly includes a horizontal sliding groove disposed on the swing frame, a horizontal sliding protrusion disposed on the horizontal sliding block and slidingly engaged with the horizontal sliding groove, a horizontal position adjusting bolt disposed at one end of the horizontal sliding groove and used to adjust the position of the horizontal sliding protrusion on the horizontal sliding groove, a horizontal locking bolt used to lock the horizontal sliding protrusion on the horizontal sliding groove, and a reset adjusting spring disposed in the horizontal sliding groove, wherein one end of the reset adjusting spring acts on the horizontal sliding protrusion and the other end acts on the other end of the horizontal sliding groove;

[0017] The vertical adjustment assembly includes a vertical sliding groove disposed on the horizontal sliding block, a vertical sliding protrusion disposed on the fixed frame and slidingly engaged with the vertical sliding groove, a vertical position adjusting bolt disposed at the lower end of the vertical sliding groove and used to adjust the position of the vertical sliding protrusion on the vertical sliding groove, and a vertical locking bolt used to lock the vertical sliding protrusion on the vertical sliding groove.

[0018] In the above structure, the horizontal position adjusting bolt and the reset adjusting spring are respectively located on both sides of the horizontal sliding protrusion. The horizontal position adjusting bolt is threaded onto the swing frame, and its end extends into the horizontal sliding groove and abuts against the side of the horizontal sliding protrusion. By turning the horizontal position adjusting bolt forward or backward, the position of the horizontal sliding protrusion on the horizontal sliding groove is adjusted, thereby adjusting the position of the horizontal sliding block, and ultimately achieving synchronous adjustment of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece. When the horizontal position adjusting bolt is turned forward, it overcomes the elastic force of the reset adjusting spring and pushes the horizontal sliding protrusion to move, achieving forward adjustment. During this process, the reset adjusting spring is compressed. When the horizontal position adjusting bolt is turned backward, the elastic force of the reset adjusting spring pushes the horizontal sliding protrusion to move, so that the horizontal sliding protrusion is always pressed against the horizontal position adjusting bolt, achieving reverse adjustment. After the position is adjusted, the horizontal sliding protrusion is locked with a horizontal locking bolt to prevent movement during processing. When adjusting the vertical position of the rotating workpiece, the vertical position adjusting bolt is turned clockwise or counterclockwise to adjust the position of the vertical sliding protrusion on the vertical sliding groove, ultimately achieving synchronous adjustment of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece. When the vertical position adjusting bolt is turned clockwise, it overcomes the gravity of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece, pushing the vertical sliding protrusion upward, achieving clockwise adjustment. When the vertical position adjusting bolt is turned counterclockwise, the gravity of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece moves downward, and the vertical sliding protrusion remains pressed against the vertical position adjusting bolt, achieving counterclockwise adjustment. After the position is adjusted, the vertical sliding protrusion is locked with the vertical locking bolt to prevent movement during processing.

[0019] Preferably, the workpiece grinding mechanism includes a workpiece grinding assembly vertically slidably mounted on the frame and a vertical grinding drive mechanism for driving the workpiece grinding assembly to move vertically. The workpiece grinding assembly includes a vertical sliding frame vertically slidably mounted on the frame, a grinding disc rotatably mounted on the vertical sliding frame, and a grinding drive motor for driving the grinding disc to rotate. In the above structure, during grinding, the grinding drive motor can drive the grinding disc to rotate, and the vertical grinding drive mechanism can drive the grinding disc to approach the rotating workpiece until it reaches a designated position. At this point, the grinding disc contacts the R-angle surface of the rotating workpiece. Through the rotation of the grinding disc, the rotation of the rotating workpiece, and the oscillation of the rotating workpiece, the precise machining of the arc portion of the R-angle is achieved.

[0020] Preferably, the vertical grinding drive mechanism includes a vertical drive motor and a lead screw transmission assembly mounted on the frame; the lead screw transmission assembly is connected to the vertical drive motor and the vertical sliding frame. The vertical drive motor drives the lead screw transmission assembly to move, which in turn drives the vertical sliding frame to move, thus realizing the lifting and lowering movement of the workpiece grinding assembly.

[0021] Preferably, the R-angle polishing device further includes a horizontal rotation drive mechanism for driving the workpiece adjustment module to rotate horizontally; the mounting plate is rotatably mounted on the frame, and the horizontal rotation drive mechanism includes a horizontal rotation drive motor mounted on the frame, the output end of which is connected to the mounting plate. The horizontal rotation drive motor can drive the mounting plate to rotate horizontally on the frame, thereby adjusting the horizontal position of the entire workpiece adjustment module. When processing is complete and the rotating workpiece needs to be removed, the horizontal rotation drive motor allows the fixture to move away from the grinding disc, providing sufficient space for disassembling the rotating workpiece and making installation very convenient. During processing, the workpiece adjustment module is reset. Furthermore, adjusting the position of the rotating workpiece through the horizontal rotation drive mechanism can change the contact position between the grinding disc and the R-angle, preventing excessive wear on the grinding disc at the same location and improving polishing accuracy.

[0022] Preferably, the grinding disc is coated with a polishing material. This is to improve the grinding effect, resulting in more uniform and higher-quality polishing of the radius (R-angle).

[0023] Preferably, the frame is a worktable. The purpose of this is that the worktable makes processing more convenient.

[0024] A method for polishing the radius (R) of a workpiece made of hard and brittle material, comprising the following steps:

[0025] (1) Adjust the horizontal and vertical positions of the workpiece clamping mechanism by adjusting the workpiece position mechanism. When the rotating workpiece is clamped in the workpiece clamping mechanism, the center of the R-angle of the rotating workpiece is aligned with the axis of the swing drive mechanism in a vertical plane that is perpendicular to the swing center axis of the swing drive mechanism and coincides with the axis of the rotating workpiece, thus completing the position adjustment of the workpiece clamping mechanism.

[0026] (2) The rotary workpiece with the R angle already machined is clamped in the workpiece clamping mechanism;

[0027] (3) The self-rotation drive mechanism drives the workpiece clamping mechanism to rotate, thereby causing the rotating workpiece to rotate;

[0028] (4) The swing drive mechanism drives the workpiece clamping mechanism and the rotating workpiece to swing back and forth together;

[0029] (5) The workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the designated position. Then, the workpiece grinding mechanism contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece.

[0030] (6) After the polishing of the rotating workpiece is completed, the rotating workpiece is removed from the workpiece clamping mechanism, and the next rotating workpiece is replaced. Steps (2)-(5) are repeated.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. The R-angle polishing device for hard and brittle material rotating workpieces in this invention drives the rotating workpiece to rotate through a self-rotation drive mechanism, drives the rotating workpiece to swing through a swing drive mechanism, and contacts the rotating workpiece through the rotation of the workpiece grinding mechanism. The three movements are superimposed to achieve automatic polishing of the rotating workpiece, resulting in high processing efficiency.

[0033] 2. The R-angle polishing device for hard and brittle material rotating workpieces in this invention adjusts the horizontal and vertical positions of the rotating workpieces before processing via a workpiece position adjustment mechanism. This ensures that the center of the R-angle of the rotating workpiece coincides with the axis of the swing drive mechanism in a vertical plane perpendicular to the swing center axis and coinciding with the axis of the rotating workpiece. This ensures precise control and uniform polishing of the arc portion of the R-angle of the rotating workpiece, meaning that the outer surface of the R-angle has consistent processing conditions, guaranteeing uniform grinding across the outer surface of the R-angle. This improves the uniformity and consistency of the polishing process, thereby enhancing the processing accuracy of the rotating workpiece and meeting the high-quality requirements of the workpiece. Attached Figure Description

[0034] Figure 1This is a three-dimensional structural schematic diagram of a first specific embodiment of a polishing device for the R-angle of a hard and brittle rotating workpiece according to the present invention.

[0035] Figure 2 This is a side view of the R-angle polishing device of the present invention.

[0036] Figure 3 This is a three-dimensional structural diagram of the workpiece adjustment module and the horizontal rotation drive mechanism in this invention.

[0037] Figure 4 This is a side view of the workpiece adjustment module in this invention.

[0038] Figure 5 for Figure 4 A cross-sectional view along the AA direction.

[0039] Figure 6 for Figure 5 A magnified view of a section at point B.

[0040] Figure 7 This is a cross-sectional view of the rotating workpiece in this invention.

[0041] Figure 8 This is a three-dimensional structural diagram of the clamp in this invention.

[0042] Figure 9 This is a front view of the workpiece position adjustment mechanism in this invention.

[0043] Figure 10 This is an exploded view of the workpiece position adjustment mechanism in this invention.

[0044] Figure 11 This is an exploded view of the workpiece position adjustment mechanism in this invention from another perspective.

[0045] Figure 12 This is a three-dimensional structural diagram of the workpiece grinding mechanism in this invention.

[0046] Figure 13 This is a three-dimensional structural diagram of a second specific embodiment of the R-angle polishing device of the present invention.

[0047] Figure 14 This is a three-dimensional structural diagram of the automatic loading and unloading module in this invention.

[0048] Figure 15 This is a three-dimensional structural diagram of the workpiece placement mechanism in this invention.

[0049] Figure 16 This is a three-dimensional structural diagram of a second specific embodiment of the clamp in this invention.

[0050] Figure 17 This is a three-dimensional structural diagram of the clamp and part of the clamping drive mechanism in this invention.

[0051] Figure 18 This is a three-dimensional structural diagram of part of the clamping drive mechanism in this invention.

[0052] Figure 19 This is a three-dimensional structural diagram of the workpiece transfer and handling mechanism in this invention. Detailed Implementation

[0053] To enable those skilled in the art to fully understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0054] Example 1

[0055] See Figures 1-3 This embodiment discloses a polishing device for the R-angle of a rotating workpiece made of hard and brittle material, including a frame 1, a workpiece adjustment module disposed on the frame 1, and a workpiece grinding mechanism 2.

[0056] See Figures 1-12 The workpiece adjustment module includes a workpiece clamping mechanism 3, a rotation drive mechanism 4, a workpiece position adjustment mechanism 5, and a swing drive mechanism 6. The workpiece clamping mechanism 3 is used to clamp a rotating workpiece 7. The rotation drive mechanism 4 is used to drive the workpiece clamping mechanism 3 to rotate so as to drive the rotating workpiece 7 to rotate. The workpiece position adjustment mechanism 5 is used to adjust the horizontal and vertical positions of the workpiece clamping mechanism 3. The swing drive mechanism 6 is used to drive the workpiece clamping mechanism 3 to swing so as to drive the rotating workpiece 7 to swing.

[0057] See Figures 1-12 The rotating workpiece 7 has a rounded chamfer, which is an R-angle 7-1. The workpiece grinding mechanism 2 is used to grind the R-angle 7-1 on the rotating workpiece 7. During processing, in a vertical plane 10 that is perpendicular to the swing center axis 8 of the swing drive mechanism 6 and coincides with the axis 9 of the rotating workpiece 7, the center O of the R-angle 7-1 of the rotating workpiece 7 coincides with the swing center axis 8 of the swing drive mechanism 6. The vertical plane 10 is also known as... Figure 2 In the cross section along the AA direction, in this vertical plane 10, the outer contour of the rotating workpiece 7 at the R-angle is an arc segment, and the center O of the R-angle 7-1 circle is the center of the arc segment. When the workpiece clamping mechanism 3 clamps the rotating workpiece 7, the axis 9 of the rotating workpiece 7 coincides with the axis of the workpiece clamping mechanism 3.

[0058] See Figures 1-12 The working principle of the above-mentioned polishing device for the R-angle of rotating workpieces made of hard and brittle materials is as follows:

[0059] The rotating workpiece 7 will have a radius (R) of 7-1 machined by CNC machining. This machining is rough machining. In this embodiment, the R-angle polishing device will perform a finishing machining of the R-angle 7-1 by polishing it. First, according to the model and specifications of the rotating workpiece 7, the horizontal and vertical positions of the workpiece clamping mechanism 3 are adjusted to determine the machining position of the rotating workpiece 7. That is, after the rotating workpiece 7 is clamped in the workpiece clamping mechanism 3, the horizontal and vertical positions of the rotating workpiece are adjusted. The machining position will also be different for different radii and dimensions of the R-angle 7-1. Specifically, the horizontal and vertical positions of the workpiece clamping mechanism 3 are adjusted by the workpiece position adjustment mechanism 5. The horizontal and vertical positions of the workpiece clamping mechanism 3 must meet the following conditions: when the rotating workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the radius 7-1 of the rotating workpiece 7 coincides with the radius 8 of the swing drive mechanism 6 in the vertical plane 10, which is perpendicular to the swing center axis 8 and coincides with the axis of the rotating workpiece 7. After meeting the above conditions, the position adjustment of the workpiece clamping mechanism 3 is completed; the rotating workpiece 7-1, which has already been machined... The workpiece 7 is clamped in the workpiece clamping mechanism 3; the rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby causing the rotating workpiece 7 to rotate; the swing drive mechanism 6 drives the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing back and forth together; the workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7 until it reaches the designated position, at which point the workpiece grinding mechanism 2 contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece; after the rotating workpiece 7 is polished, the rotating workpiece 7 is removed from the workpiece clamping mechanism 3, and the next rotating workpiece 7 is replaced, and the above steps are repeated.

[0060] See Figures 1-12 The workpiece adjustment module further includes a fixed frame 11, and the workpiece clamping mechanism 3 includes a clamp 3-1 rotatably mounted on the fixed frame 11 for clamping the rotating workpiece 7; the clamp 3-1 is connected to the rotation drive mechanism 4; the swing drive mechanism 6 is connected to the workpiece position adjustment mechanism 5, and the workpiece position adjustment mechanism 5 is connected to the fixed frame 11. In the above structure, the rotation of the rotating workpiece 7 can be achieved by driving the clamp 3-1 to rotate through the rotation drive mechanism 4; when the swing drive mechanism 6 is working, it can drive the workpiece position adjustment mechanism 5, the fixed frame 11, the clamp 3-1, and the rotation drive mechanism 4 to swing synchronously.

[0061] See Figures 1-8The clamp 3-1 includes a rotating part 3-11, a first clamping member 3-12 connected to the lower end of the rotating part 3-11, and a second clamping member 3-13. An opening groove 3-14 is provided between the first clamping member 3-12 and the second clamping member 3-13. The rotating part 3-11, the first clamping member 3-12, and the second clamping member 3-13 are an integral structure. The rotating part 3-11 is rotatably connected to the fixed frame 11. The first clamping member 3-12 and the second clamping member 3-13 clamp the rotating workpiece 7 by clamping bolts 3-15. In the above structure, the clamp 3-1 adopts an integrated structure, which is very simple and compact. When installing the rotating workpiece 7, the rotating workpiece 7 is placed between the first clamping member 3-12 and the second clamping member 3-13. By adjusting the clamping bolt 3-15, the first clamping member 3-12 and the second clamping member 3-13 are brought closer to each other, and the distance between the opening slots 3-14 is reduced, thereby clamping the rotating workpiece 7. When disassembling the workpiece, the clamping bolt 3-15 is loosened, and the first clamping member 3-12 and the second clamping member 3-13 are moved away from each other, thus realizing the disassembly of the rotating workpiece 7. In order to adapt to the rotating workpiece 7, the first clamping member 3-12 and the second clamping member 3-13 are arc-shaped.

[0062] See Figures 1-5 The self-rotation drive mechanism 4 includes a self-rotation drive motor 4-1 mounted on a fixed frame 11, a transmission rod 4-2 rotatably mounted on the fixed frame 11, and a first belt drive mechanism 4-3 that transmits the power of the self-rotation drive motor 4-1 to the transmission rod 4-2. The transmission rod 4-2 is fixedly connected to the clamp 3-1. With this structure, the self-rotation drive motor 4-1 drives its shaft to move, which in turn drives the first belt drive mechanism 4-3 to move, thereby causing the transmission rod 4-2 to rotate, thus causing the clamp 3-1 and the rotating workpiece 7 to rotate synchronously.

[0063] See Figures 1-11 The swing drive mechanism 6 includes a mounting plate 6-1 mounted on the frame 1, a swing frame 6-2 rotatably mounted on the mounting plate 6-1, a swing drive motor 6-3 mounted on the mounting plate 6-1, and a second belt drive mechanism 6-4 that transmits power from the swing drive motor 6-3 to the swing frame 6-2. The rotation center axis of the swing frame 6-2 is the swing center axis 8. The swing frame 6-2 is connected to the workpiece position adjustment mechanism 5. By adopting the above structure, the swing drive motor 6-3 drives its shaft to move, which in turn drives the second belt drive mechanism 6-4 to move, thereby driving the swing frame 6-2 to rotate. This causes the workpiece position adjustment mechanism 5, the mounting plate 6-1, the rotation drive mechanism 4, the fixture 3-1, and the rotating workpiece 7 to swing synchronously. By driving the rotating workpiece 7 to swing, the polishing of the entire arc surface of the R-angle of the rotating workpiece can be achieved.

[0064] See Figures 1-11 Both the first belt drive mechanism 4-3 and the second belt drive mechanism 6-4 include a driving pulley, a driven pulley, and a belt. The driving pulley of the first belt drive mechanism 4-3 is connected to the self-rotating drive motor 4-1, and the driven pulley is connected to the transmission rod 4-2. The swing frame 6-2 is provided with a connecting shaft 6-5, which is rotatably connected to the mounting plate 6-1; the axis of the connecting shaft 6-5 is the swing center axis 8. The driving pulley of the second belt drive mechanism 6-4 is connected to the swing drive motor 6-3, and the driven pulley is connected to the connecting shaft 6-5.

[0065] See Figures 1-11 The workpiece position adjustment mechanism 5 includes a horizontal sliding block 5-1, a horizontal adjustment component, and a vertical adjustment component disposed between the fixed frame 11 and the swing frame 6-2.

[0066] See Figures 1-12 The horizontal adjustment assembly includes a horizontal sliding groove 5-2 disposed on the swing frame 6-2, a horizontal sliding protrusion 5-3 disposed on the horizontal sliding block 5-1 and slidingly engaged with the horizontal sliding groove 5-2, a horizontal position adjusting bolt 5-4 disposed at one end of the horizontal sliding groove 5-2 for adjusting the position of the horizontal sliding protrusion 5-3 on the horizontal sliding groove 5-2, a horizontal locking bolt 5-5 for locking the horizontal sliding protrusion 5-3 on the horizontal sliding groove 5-2, and a reset adjusting spring 5-6 disposed in the horizontal sliding groove 5-2, one end of the reset adjusting spring 5-6 acting on the horizontal sliding protrusion 5-3, and the other end acting on the other end of the horizontal sliding groove 5-2.

[0067] See Figures 1-11 The vertical adjustment assembly includes a vertical sliding groove 5-7 disposed on the horizontal sliding block 5-1, a vertical sliding protrusion 5-8 disposed on the fixed frame 11 and slidably engaged with the vertical sliding groove 5-7, a vertical position adjusting bolt 5-9 disposed at the lower end of the vertical sliding groove 5-7 and used to adjust the position of the vertical sliding protrusion 5-8 on the vertical sliding groove 5-7, and a vertical locking bolt 5-10 used to lock the vertical sliding protrusion 5-8 on the vertical sliding groove 5-7.

[0068] See Figures 1-11In the above structure, the horizontal position adjusting bolt 5-4 and the reset adjusting spring 5-6 are respectively set on both sides of the horizontal sliding protrusion 5-3. The horizontal position adjusting bolt 5-4 is threadedly connected to the swing frame 6-2, and its end extends into the horizontal sliding groove 5-2 and abuts against the side of the horizontal sliding protrusion 5-3. By turning the horizontal position adjusting bolt 5-4 in the forward or reverse direction, the position of the horizontal sliding protrusion 5-3 on the horizontal sliding groove 5-2 can be adjusted, thereby realizing the position adjustment of the horizontal sliding block 5-1, and finally realizing the synchronous adjustment of the mounting plate 6-1, the self-rotation drive mechanism 4, the fixture 3-1 and the rotating workpiece 7. When the horizontal position adjusting bolt 5-4 is turned in the forward direction, it overcomes the elastic force of the reset adjusting spring 5-6, pushing the horizontal sliding protrusion 5-3 to move, thus achieving forward adjustment. During this process, the reset adjusting spring 5-6 is compressed. When the horizontal position adjusting bolt 5-4 is turned in the reverse direction, the elastic force of the reset adjusting spring 5-6 pushes the horizontal sliding protrusion 5-3 to move, ensuring that the horizontal sliding protrusion 5-3 is always pressed against the horizontal position adjusting bolt 5-4, thus achieving reverse adjustment. After the position is adjusted, the horizontal sliding protrusion 5-3 is locked by the horizontal locking bolt 5-5 to prevent movement during processing. When adjusting the vertical position of the rotating workpiece 7, the vertical position adjusting bolt 5-9 is turned in the forward or reverse direction to adjust the position of the vertical sliding protrusion 5-8 on the vertical sliding groove 5-7, ultimately achieving synchronous adjustment of the mounting plate 6-1, the self-rotation drive mechanism 4, the fixture 3-1, and the rotating workpiece 7. When the vertical position adjusting bolt 5-9 is turned in the forward direction, it overcomes the gravity of the mounting plate 6-1, the self-rotation drive mechanism 4, the fixture 3-1, and the rotating workpiece 7, pushing the vertical sliding protrusion 5-8 upward to achieve forward adjustment. When the vertical position adjusting bolt 5-9 is turned in the reverse direction, the gravity of the mounting plate 6-1, the self-rotation drive mechanism 4, the fixture 3-1, and the rotating workpiece 7 will move downward, and the vertical sliding protrusion will always be pressed against the vertical position adjusting bolt 5-9 to achieve reverse adjustment. After the position is adjusted, the vertical sliding protrusion 5-8 is locked by the vertical locking bolt 5-10 to prevent movement during processing.

[0069] See Figures 1-2 and Figure 12The workpiece grinding mechanism 2 includes a workpiece grinding assembly vertically slidably mounted on the frame 1 and a vertical grinding drive mechanism for driving the workpiece grinding assembly to move vertically. The workpiece grinding assembly includes a vertical sliding frame 2-1 vertically slidably mounted on the frame 1, a grinding disc 2-2 rotatably mounted on the vertical sliding frame 2-1, and a grinding drive motor 2-3 for driving the grinding disc 2-2 to rotate. In the above structure, during grinding, the grinding drive motor 2-3 can drive the grinding disc 2-2 to rotate. The vertical grinding drive mechanism can drive the grinding disc 2-2 to approach the rotating workpiece 7. After reaching the designated position, the grinding disc 2-2 contacts the R-angle surface of the rotating workpiece. Through the rotation of the grinding disc 2-2, the rotation of the rotating workpiece 7, and the oscillation of the rotating workpiece 7, the arc portion of the R-angle 7-1 is precisely machined.

[0070] See Figures 1-2 and Figure 12 The vertical grinding drive mechanism includes a vertical drive motor 2-4 and a lead screw transmission assembly 2-5 mounted on the frame 1. The lead screw transmission assembly 2-5 is connected to the vertical drive motor 2-4 and the vertical sliding frame 2-1. The lead screw transmission assembly 2-5 consists of a lead screw and a lead screw nut. The vertical drive motor 2-4 drives the lead screw transmission assembly 2-5 to move, which in turn drives the vertical sliding frame 2-1 to move, thereby realizing the lifting and lowering movement of the workpiece grinding assembly.

[0071] See Figures 1-2 and Figure 12 The vertical sliding frame 2-1 is guided to the frame 1 by a guide rail and a slider.

[0072] See Figures 1-4 The R-angle polishing device further includes a horizontal rotation drive mechanism 12 for driving the workpiece adjustment module to rotate in the horizontal direction. The mounting plate 6-1 is rotatably mounted on the frame 1. The horizontal rotation drive mechanism 12 includes a horizontal rotation drive motor 12-1 mounted on the frame 1, and the output end of the horizontal rotation drive motor 12-1 is connected to the mounting plate 6-1. The horizontal rotation drive motor 12-1 can drive the mounting plate 6-1 to rotate horizontally on the frame 1, thereby adjusting the horizontal position of the entire workpiece adjustment module. When processing is complete and the rotating workpiece 7 needs to be removed, the horizontal rotation drive motor 12-1 can move the clamp 3-1 away from the grinding disc 2-2, thus providing sufficient space for disassembling the rotating workpiece 7 and making installation of the rotating workpiece 7 very convenient. During processing, the workpiece adjustment module is reset. Furthermore, by adjusting the position of the rotating workpiece 7 through the horizontal rotation drive mechanism 12, the contact position between the grinding disc 2-2 and the R-angle 7-1 can be changed, preventing excessive wear at the same position on the grinding disc 2-2 and improving polishing accuracy.

[0073] See Figures 1-4 The horizontal rotation drive motor 12-1 is connected to the mounting plate 6-1 via a gear reduction mechanism.

[0074] See Figures 1-2 and Figure 12 The grinding disc 2-2 is coated with polishing material. The purpose is to improve the grinding effect, resulting in more uniform and higher-quality polishing of the R-angle 7-1.

[0075] See Figures 1-2 The frame 1 is a worktable. Its purpose is to make processing more convenient.

[0076] See Figures 1-12 This embodiment also discloses a method for polishing the R-angle of a hard and brittle material rotating workpiece, including the following steps:

[0077] (1) Adjust the horizontal and vertical positions of the workpiece clamping mechanism 3 by adjusting the workpiece position adjustment mechanism 5. When the rotating workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the R-angle 7-1 of the rotating workpiece 7 coincides with the swing center axis 8 of the swing drive mechanism 6 in the vertical plane 10 that is perpendicular to the swing center axis 8 of the swing drive mechanism 6 and coincides with the axis of the rotating workpiece 7. After the coincidence, the position is locked, and the position adjustment of the workpiece clamping mechanism 3 is completed.

[0078] (2) The rotary workpiece 7, which has been machined with R angle 7-1, is clamped in the workpiece clamping mechanism 3;

[0079] (3) The self-rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby causing the rotating workpiece 7 to rotate.

[0080] (4) The swing drive mechanism 6 drives the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing back and forth together;

[0081] (5) The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7 until it reaches the designated position. Then, the workpiece grinding mechanism 2 contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece.

[0082] (6) After the polishing of the rotating workpiece 7 is completed, the rotating workpiece 7 is removed from the workpiece clamping mechanism 3, and the next rotating workpiece 7 is replaced. Steps (2)-(5) are repeated.

[0083] In steps (4) and (5) above, it can also be:

[0084] Step (4): The swing drive mechanism 6 can first drive the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing to a higher position and stop;

[0085] Step (5): The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7. After reaching the designated position, the swing drive mechanism 6 drives the workpiece clamping mechanism 3 to swing back and forth with the rotating workpiece 7. The workpiece grinding mechanism 2 contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece.

[0086] Example 2

[0087] See Figures 13-19 The other structures in this embodiment are the same as in embodiment 1. The difference is that the R-angle polishing device further includes an automatic loading and unloading module. The automatic loading and unloading module includes a workpiece placement mechanism 13 set on the frame 1 for placing and transferring the rotating workpiece 7, a workpiece transfer mechanism 15 for moving the rotating workpiece 7 back and forth between the workpiece placement mechanism 13 and the fixture 3-1, and a clamping drive mechanism 14 for driving the fixture 3-1 to clamp or release the rotating workpiece 7.

[0088] See Figures 13-15 The workpiece placement mechanism 13 includes a loading tray 13-1 mounted on the frame 1 and a loading rotation drive mechanism for driving the loading tray 13-1 to rotate; the loading rotation drive mechanism includes a loading drive motor 13-2; the loading tray 13-1 is provided with a plurality of placement slots 13-11 for placing rotating workpieces 7. The plurality of placement slots 13-11 are evenly distributed along the circumferential direction. In this embodiment, there are two placement slots 13-11, and the loading tray 13-1 is rod-shaped. In other embodiments, the loading tray 13-1 can be disc-shaped, and the number of placement slots 13-11 is greater than two. The placement slots 13-11 are through-hole arranged to facilitate the handling by the workpiece transfer and transportation mechanism 15.

[0089] See Figures 13-14 and Figures 16-17 The clamp 3-1 includes a rotary connecting part 3-16 and a conical clamping device disposed at the lower end of the rotary connecting part 3-16. The conical clamping device includes multiple arc-shaped clamping elements 3-17 distributed along the circumference; a groove 3-15 is provided between two adjacent arc-shaped clamping elements 3-17; a limiting ring 3-19 is provided between the rotary connecting part 3-16 and the conical clamping device; a limiting protrusion 3-10 is provided at the lower end of the arc-shaped clamping elements 3-17. The limiting protrusion 3-10, the arc-shaped clamping elements 3-17, the limiting ring 3-19, and the rotary connecting part 3-16 are integral structures. The diameter of the conical clamping device gradually increases in the downward direction.

[0090] See Figures 13-14 and Figures 16-18The clamping drive mechanism 14 includes a fixed mounting bracket 14-1 mounted on the frame 1, a shift fork 14-2 mounted on the fixed mounting bracket 14-1, a drive ring 14-3 sleeved on the conical clamp, a drive spring 14-4 sleeved on the conical clamp, and a clamping drive cylinder 14-5 for driving the shift fork 14-2 to move vertically. The upper end of the drive spring 14-4 acts on the limiting ring 3-19, and the lower end of the drive spring 14-4 acts on the drive ring 14-3. The shift fork 14-2 is slidably connected to the fixed mounting bracket 14-1 via a guide rod.

[0091] See Figures 13-14 and Figure 19 The workpiece transfer and handling mechanism 15 includes a suction cup 15-1 for adsorbing rotating workpieces 7 and a transfer and handling cylinder 15-2 for driving the suction cup 15-1 to move in the vertical direction.

[0092] See Figures 13-19 The working principle of the automatic loading and unloading module is as follows:

[0093] The horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate horizontally, so that the fixture 3-1 is located in the loading station. In this station, the suction cup 15-1 is also located directly below the fixture 3-1, and the shift fork 14-2 is also located below the fixture 3-1. The clamping drive cylinder 14-5 drives the shift fork 14-2 to move upward. The shift fork 14-2 drives the drive ring 14-3 to move upward, and the drive spring 14-4 is compressed. Since the diameter of the conical clamp increases along the downward direction, the upward movement of the drive ring 14-3 will cause the arc-shaped clamping part 3-17 to open under its own elastic force. The rotating workpiece 7, which has been machined with R-angle 7-1, is transported to the placement slot 13-11. The loading drive motor 13-2 drives the loading plate 13-1 to rotate, and then... The rotating workpiece 7 rotates along with the chuck. When the rotating workpiece 7 moves directly below the fixture 3-1, it stops rotating. The transfer cylinder 15-2 drives the suction cup 15-1 to move upward, adsorbing the rotating workpiece 7. It continues to move upward, passing through the placement slot 13-11, and transporting the rotating workpiece 7 into the fixture 3-1. The clamping drive cylinder 14-5 drives the shift fork 14-2 to move downward. The drive spring 14-4 resets, pushing the drive ring 14-3 downward. Due to the increased diameter of the conical clamp, the drive ring pushes the arc-shaped clamping member 3-17 to close simultaneously (moving inward). Multiple arc-shaped clamping members 3-17 clamp the rotating workpiece 7 on the suction cup 15-1. After clamping, the arc-shaped clamping members 3-17 cannot move further (returning). The limiting effect of the rotating workpiece 7 prevents the drive ring 14-3 from moving downwards. Under the elastic force of the drive spring 14-4, the rotating workpiece 7 is stably clamped in the fixture 3-1. The transfer cylinder 15-2 drives the suction cup 15-1 to move downwards, away from the fixture 3-1. The horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate in the horizontal direction, and drives the rotating workpiece 7 to rotate until the rotating workpiece 7 moves to the grinding station. At this station, the rotating workpiece 7 on the fixture 3-1 corresponds to the workpiece grinding mechanism 2. After the polishing process is completed, the horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate in the opposite direction in the horizontal direction, and drives the rotating workpiece 7 to rotate until the rotating workpiece 7 is aligned with the placement groove 13-1. 1. The fixture 3-1 is located in the loading station. The transfer cylinder 15-2 drives the suction cup 15-1 to move upward, adsorbing the rotating workpiece 7 on the fixture 3-1. The clamping drive cylinder 14-5 drives the shift fork 14-2 to move upward. The shift fork 14-2 drives the drive ring 14-3 to move upward. The drive spring 14-4 is compressed, and the drive ring 14-3 moves upward. The arc-shaped clamping member 3-17 will open under its own elastic force, thereby releasing the rotating workpiece 7. The transfer cylinder 15-2 drives the suction cup 15-1 to move downward, transporting the rotating workpiece 7 back to the placement slot 13-11. The transfer cylinder 15-2 drives the suction cup 15-1 to continue to move downward, away from the placement slot 13-11.The loading drive motor 13-2 drives the loading tray 13-1 to rotate, moving the polished rotary workpiece 7 away from the fixture 3-1. The next rotary workpiece 7 will move to the underside of the fixture 3-1, repeating the above steps to achieve automatic loading and unloading as well as automatic polishing. The polished rotary workpiece 7 can be moved off the loading tray 13-1 by a conveying device, and the rotary workpiece 7 to be processed can be moved to an empty placement slot 13-11, achieving fully automatic loading and unloading. Compared with existing technologies, this method is more efficient.

[0094] See Figures 13-19 This embodiment also discloses a method for polishing the R-angle of a hard and brittle material rotating workpiece, including the following steps:

[0095] (S1) The horizontal and vertical positions of the workpiece clamping mechanism 3 are adjusted by the workpiece position adjustment mechanism 5. When the rotating workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the R-angle 7-1 of the rotating workpiece 7 coincides with the swing center axis 8 of the swing drive mechanism 6 in the vertical plane 10 that is perpendicular to the swing center axis 8 of the swing drive mechanism 6 and coincides with the axis of the rotating workpiece 7. After the coincidence, the position is locked, and the position adjustment of the workpiece clamping mechanism 3 is completed.

[0096] (S2) The rotary workpiece 7 with R angle 7-1 has been machined is transported to the workpiece placement mechanism 13, and the workpiece placement mechanism 13 moves the rotary workpiece 7 to the position below the corresponding position of the fixture 3-1.

[0097] (S3) The workpiece transfer mechanism 15 transports the rotating workpiece 7, which is located on the workpiece placement mechanism 13 and directly below the fixture 3-1, into the fixture 3-1;

[0098] (S4) The clamping drive mechanism 14 drives the fixture 3-1 to move, thereby clamping the rotating workpiece 7.

[0099] (S5) The horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate in the horizontal direction and drives the rotating workpiece 7 to rotate until the rotating workpiece 7 corresponds to the workpiece grinding mechanism 2.

[0100] (S6) The self-rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby causing the rotating workpiece 7 to rotate.

[0101] (S7) The swing drive mechanism 6 drives the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing back and forth together;

[0102] (S8) The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7. After reaching the designated position, the workpiece grinding mechanism 2 contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece.

[0103] (S9) After the processing is completed, the swing drive mechanism 6 and the self-rotation drive mechanism 4 stop moving, and the workpiece grinding mechanism 2 is reset.

[0104] (S10) The horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate in the horizontal direction and drives the rotating workpiece 7 to rotate until the rotating workpiece 7 corresponds to the workpiece placement mechanism 13.

[0105] (S11) The clamping drive mechanism 14 drives the fixture 3-1 to move and release the rotating workpiece 7.

[0106] (S12) The workpiece transfer and handling mechanism 15 transports the rotating workpiece 7 to the workpiece placement mechanism 13;

[0107] (S13) The workpiece placement mechanism 13 moves the next rotating workpiece 7 to the position below the corresponding fixture 3-1; repeat the above steps (S3)-(S13). The polished rotating workpiece 7 is moved away from the workpiece placement mechanism 13; the unpolished rotating workpiece 7 is moved to the workpiece placement mechanism 13; thus realizing automated feeding.

[0108] In the above steps (S7) and (S8), it can also be:

[0109] Step (S7): The swing drive mechanism 6 can first drive the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing to a higher position and stop (at this position, the rotating workpiece 7 will not come into contact with the workpiece grinding mechanism 2);

[0110] Step (S8): The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7. After reaching the designated position, the swing drive mechanism 6 drives the workpiece clamping mechanism 3 to swing back and forth with the rotating workpiece 7. The workpiece grinding mechanism 2 contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece.

[0111] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A polishing device for the radius (R) angle of a rotating workpiece made of hard and brittle material, characterized in that, It includes a frame, a workpiece adjustment module mounted on the frame, and a workpiece grinding mechanism; wherein, The workpiece adjustment module includes a workpiece clamping mechanism, a rotation drive mechanism, a workpiece position adjustment mechanism, and a swing drive mechanism. The workpiece clamping mechanism is used to clamp a rotating workpiece. The rotation drive mechanism is used to drive the workpiece clamping mechanism to rotate, thereby causing the rotating workpiece to rotate. The workpiece position adjustment mechanism is used to adjust the horizontal and vertical positions of the workpiece clamping mechanism. The swing drive mechanism is used to drive the workpiece clamping mechanism to swing, thereby causing the rotating workpiece to swing. The rotating workpiece has a rounded chamfer, which is an R-angle; the workpiece grinding mechanism is used to grind the R-angle on the rotating workpiece; during processing, in a vertical plane perpendicular to the swing center axis of the swing drive mechanism and coinciding with the axis of the rotating workpiece, the center of the R-angle of the rotating workpiece coincides with the swing center axis of the swing drive mechanism. The workpiece adjustment module further includes a fixed frame, and the workpiece clamping mechanism includes a clamp rotatably mounted on the fixed frame for clamping a rotating workpiece; the clamp is connected to a rotation drive mechanism; the swing drive mechanism is connected to the workpiece position adjustment mechanism, and the workpiece position adjustment mechanism is connected to the fixed frame. The swing drive mechanism includes a mounting plate mounted on the frame, a swing frame rotatably mounted on the mounting plate, a swing drive motor mounted on the mounting plate, and a second belt drive mechanism that transmits the power of the swing drive motor to the swing frame; the rotation center axis of the swing frame is the swing center axis; the swing frame is connected to the workpiece position adjustment mechanism. The workpiece position adjustment mechanism includes a horizontal sliding block, a horizontal adjustment component, and a vertical adjustment component disposed between the fixed frame and the swing frame; wherein, The horizontal adjustment assembly includes a horizontal sliding groove disposed on the swing frame, a horizontal sliding protrusion disposed on the horizontal sliding block and slidingly engaged with the horizontal sliding groove, a horizontal position adjusting bolt disposed at one end of the horizontal sliding groove and used to adjust the position of the horizontal sliding protrusion on the horizontal sliding groove, a horizontal locking bolt used to lock the horizontal sliding protrusion on the horizontal sliding groove, and a reset adjusting spring disposed in the horizontal sliding groove, wherein one end of the reset adjusting spring acts on the horizontal sliding protrusion and the other end acts on the other end of the horizontal sliding groove; The vertical adjustment assembly includes a vertical sliding groove disposed on the horizontal sliding block, a vertical sliding protrusion disposed on the fixed frame and slidingly engaged with the vertical sliding groove, a vertical position adjusting bolt disposed at the lower end of the vertical sliding groove and used to adjust the position of the vertical sliding protrusion on the vertical sliding groove, and a vertical locking bolt used to lock the vertical sliding protrusion on the vertical sliding groove.

2. The R-angle polishing device according to claim 1, characterized in that, The self-rotation drive mechanism includes a self-rotation drive motor mounted on a fixed frame, a transmission rod rotatably mounted on the fixed frame, and a first belt drive mechanism that transmits the power of the self-rotation drive motor to the transmission rod. The transmission rod is fixedly connected to the clamp.

3. The R-angle polishing apparatus according to claim 1, characterized in that, The workpiece grinding mechanism includes a workpiece grinding assembly that is vertically slidably mounted on the frame and a vertical grinding drive mechanism for driving the workpiece grinding assembly to perform vertical movement. The workpiece grinding assembly includes a vertical sliding frame that is slidably mounted on the frame, a grinding disc that is rotatably mounted on the vertical sliding frame, and a grinding drive motor for driving the grinding disc to rotate.

4. The R-angle polishing apparatus according to claim 3, characterized in that, The vertical grinding drive mechanism includes a vertical drive motor and a lead screw transmission assembly mounted on the frame; the lead screw transmission assembly is connected to the vertical drive motor and the vertical sliding frame.

5. The R-angle polishing apparatus according to claim 3, characterized in that, The grinding disc is coated with polishing material.

6. The R-angle polishing apparatus according to claim 1, characterized in that, The frame is a workbench.

7. A method for polishing the radius (R) of a workpiece made of hard and brittle material, characterized in that, The R-angle polishing method, applied in the R-angle polishing apparatus according to any one of claims 1-6, includes the following steps: (1) Adjust the horizontal and vertical positions of the workpiece clamping mechanism by adjusting the workpiece position mechanism. When the rotating workpiece is clamped in the workpiece clamping mechanism, the center of the R-angle of the rotating workpiece is aligned with the axis of the swing drive mechanism in a vertical plane that is perpendicular to the swing center axis of the swing drive mechanism and coincides with the axis of the rotating workpiece, thus completing the position adjustment of the workpiece clamping mechanism. (2) The rotary workpiece with the R angle already machined is clamped in the workpiece clamping mechanism; (3) The self-rotation drive mechanism drives the workpiece clamping mechanism to rotate, thereby causing the rotating workpiece to rotate; (4) The swing drive mechanism drives the workpiece clamping mechanism and the rotating workpiece to swing back and forth together; (5) The workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the designated position. Then, the workpiece grinding mechanism contacts the R-angle surface of the rotating workpiece and polishes the R-angle of the rotating workpiece. (6) After the polishing of the rotating workpiece is completed, the rotating workpiece is removed from the workpiece clamping mechanism, and the next rotating workpiece is replaced. Steps (2)-(5) are repeated.

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