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

Abstract

The invention discloses an R-angle polishing device and method for a hard and brittle material rotary body workpiece, and 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 rotation driving mechanism, a workpiece position adjusting mechanism and a swing driving mechanism. The workpiece clamping mechanism is used for clamping a rotary body workpiece; the rotary body workpiece is provided with an arc chamfer, and the arc chamfer is an R angle; during machining, in a vertical plane which is perpendicular to the swing central axis of the swing driving mechanism and coincides with the axis of the rotary body workpiece, the circle center of the R angle of the rotary body workpiece coincides with the swing central axis of the swing driving mechanism. The R angle polishing device can automatically polish the R angle of the rotary body workpiece, is high in machining efficiency, and can improve the uniformity and consistency of R angle polishing, so that the machining precision can be improved, and the machining quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and in particular to a device and method for polishing an R angle of a rotating workpiece made of a hard and brittle material. Background Art

[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 elements, the edges need to be chamfered around the arc angle, which is called the R angle. The surface quality of optical elements has a vital impact on their performance; in order to improve the surface quality of optical elements, the R angle needs to be polished and ground. Existing polishing mainly relies on manual polishing. Although there are semi-automatic R angle grinders on the market, manual participation is still required, and the degree of automation is low, resulting in low processing efficiency. In addition, the fixture with the workpiece clamped is manually operated to swing the fixture, which drives the workpiece to swing and realize the R angle grinding of the workpiece. The manual operation control accuracy is low, so that some R angle surfaces are over-ground, not ground or not fully ground, and the uniformity of the R angle surface grinding cannot be guaranteed, resulting in low processing accuracy and the inability to guarantee processing quality. Summary of the Invention

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

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

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A device for polishing the R angle of a rotating workpiece made of hard and brittle material comprises a frame, a workpiece adjustment module arranged 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 the rotating workpiece; the rotation drive mechanism is used to drive the workpiece clamping mechanism to rotate to drive 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 to drive the rotating workpiece to swing;

[0008] The rotating workpiece has a circular 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 R angle polishing device for the above-mentioned hard and brittle material rotating workpiece is:

[0010] The rotating workpiece 7 will have an R angle processed by CNC, and the horizontal position and vertical position of the workpiece clamping mechanism will be adjusted by the workpiece position adjustment mechanism. The horizontal position and vertical position 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 perpendicular to the swing center axis of the swing drive mechanism and coinciding 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, thereby driving the rotating workpiece to rotate; the swing drive mechanism drives the workpiece clamping mechanism and the rotating workpiece to swing back and forth; the workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the specified position, and the workpiece grinding mechanism contacts the R corner surface of the rotating workpiece to polish the R corner of the rotating workpiece; after the polishing of the rotating workpiece is completed, the rotating workpiece is removed from the workpiece clamping mechanism, replaced with the next rotating workpiece, and the above steps are repeated.

[0011] In a preferred embodiment of the present invention, the workpiece adjustment module further includes a fixed frame, the workpiece clamping mechanism includes a fixture rotatably mounted on the fixed frame for clamping the rotating workpiece; the fixture is connected to the 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 via the rotation drive mechanism; when the swing drive mechanism is in operation, it can drive the workpiece position adjustment mechanism, the fixed frame, the fixture, and the rotation drive mechanism to swing synchronously.

[0012] Furthermore, the clamp includes a rotating part, a first clamping member connected to the lower end of the rotating part, and a second clamping member, an open 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 integrated structure, the rotating part is rotatably connected to the fixed frame, and the first clamping member and the second clamping member clamp the rotating workpiece through a clamping bolt. In the above structure, the clamp adopts an integrated 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 bolt, the first clamping member and the second clamping member are brought closer to each other, and the distance between the open slots becomes smaller, thereby clamping the rotating workpiece. When disassembling the workpiece, the clamping bolt is loosened, and the first clamping member and the second clamping member are moved away from each other, thereby 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 drive rod rotatably mounted on the fixed frame, and a first belt drive mechanism that transmits power from the rotation drive motor to the drive rod, wherein the drive rod is fixedly connected to the fixture. With this structure, the rotation drive motor drives its shaft, which in turn drives the first belt drive mechanism, which in turn drives the drive rod, thereby causing the fixture and the rotating workpiece to rotate synchronously.

[0014] Preferably, the swing drive mechanism includes a mounting plate mounted on a 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 power from the swing drive motor to the swing frame; the swing frame's rotational axis serves as the swing axis; and the swing frame is connected to the workpiece position adjustment mechanism. By adopting the above structure, the swing drive motor drives its rotating shaft to move, thereby driving the second belt drive mechanism to move, which in turn drives the swing frame to rotate, thereby driving the workpiece position adjustment mechanism, the mounting plate, the self-rotation drive mechanism, the fixture, and the 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 arranged between the fixed frame and the swing frame; wherein,

[0016] The horizontal adjustment assembly includes a horizontal sliding groove provided on the swing frame, a horizontal sliding protrusion provided on the horizontal sliding block and slidingly matched with the horizontal sliding groove, a horizontal position adjustment bolt provided 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 return adjustment spring provided in the horizontal sliding groove, one end of the return adjustment spring acting on the horizontal sliding protrusion and the other end acting on the other end of the horizontal sliding groove;

[0017] The vertical adjustment assembly includes a vertical sliding groove arranged on the horizontal sliding block, a vertical sliding protrusion arranged on the fixing frame and slidingly cooperating with the vertical sliding groove, a vertical position adjustment bolt arranged 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 for locking the vertical sliding protrusion on the vertical sliding groove.

[0018] In the above structure, the horizontal position adjustment bolt and the reset adjustment spring are respectively arranged on both sides of the horizontal sliding protrusion. The horizontal position adjustment bolt is threadedly connected to the swing frame, and the end thereof extends into the horizontal sliding groove and presses against the side of the horizontal sliding protrusion. By turning the horizontal position adjustment bolt in the forward or reverse direction, the position of the horizontal sliding protrusion on the horizontal sliding groove is adjusted, thereby adjusting the position of the horizontal sliding block, and finally achieving synchronous adjustment of the mounting plate, the self-rotating drive mechanism, the clamp and the rotating workpiece. When the horizontal position adjustment bolt is turned in the forward direction, the elastic force of the reset adjustment spring is overcome, pushing the horizontal sliding protrusion to move, achieving forward adjustment. During this process, the reset adjustment spring is compressed. When the horizontal position adjustment bolt is turned in the reverse direction, the elastic force of the reset adjustment spring pushes the horizontal sliding protrusion to move, so that the horizontal sliding protrusion always presses against the horizontal position adjustment bolt, achieving reverse adjustment. After the position is adjusted, the horizontal sliding protrusion is locked by the horizontal locking bolt to prevent movement during the processing. When adjusting the vertical position of the rotating workpiece, the vertical position adjustment bolt is turned forward or reversely 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 adjustment bolt is turned forward, the gravity of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece is overcome, pushing the vertical sliding protrusion upward to achieve forward adjustment; when the vertical position adjustment bolt is turned reversely, the gravity of the mounting plate, the self-rotating drive mechanism, the fixture, and the rotating workpiece moves downward, and the vertical flat sliding protrusion always presses against the vertical position adjustment bolt, achieving reverse 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 slidingly arranged 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 vertically slidingly arranged on the frame, a grinding disk rotatably arranged on the vertical sliding frame, and a grinding drive motor for driving the grinding disk to rotate. In the above structure, during grinding, the grinding drive motor can drive the grinding disk to rotate, and the vertical grinding drive mechanism can drive the grinding disk to approach the rotating workpiece until it reaches a specified position, at which point the grinding disk contacts the R-angle surface of the rotating workpiece. Through the rotation of the grinding disk, the self-rotation of the rotating workpiece, and the swinging of the rotating workpiece, precise processing of the arc portion of the R angle is achieved.

[0020] Preferably, the vertical grinding drive mechanism includes a vertical drive motor and a screw transmission assembly mounted on a frame; the screw transmission assembly is connected to the vertical drive motor and a vertical slide frame. The vertical drive motor drives the screw transmission assembly to move, thereby driving the vertical slide frame to achieve the lifting and lowering movement of the workpiece grinding assembly.

[0021] Preferably, the R-angle polishing device also includes a horizontal rotation drive mechanism for driving the workpiece adjustment module to rotate in the horizontal direction; the mounting plate is rotatably arranged on the frame, and the horizontal rotation drive mechanism includes a horizontal rotation drive motor installed on the frame, and the output end of the horizontal rotation drive motor is connected to the mounting plate. The mounting plate can be driven to rotate horizontally on the frame by the horizontal rotation drive motor, thereby adjusting the position of the entire workpiece adjustment module in the horizontal direction. When the processing is completed and the rotating workpiece needs to be removed, the fixture can be moved away from the grinding disc by the horizontal rotation drive motor, so that there is enough space to disassemble the rotating workpiece, and the installation of the rotating workpiece also becomes very convenient; during processing, the workpiece adjustment module is reset; in addition, the position of the rotating workpiece is adjusted by the horizontal rotation drive mechanism, which can change the contact position of the grinding disc and the R angle, prevent excessive wear of the grinding disc at the same position, and improve the polishing accuracy.

[0022] Preferably, the grinding disc is coated with a polishing material to improve the grinding effect and make the R angle polishing more uniform and of better quality.

[0023] Preferably, the frame is a workbench, so that the workbench is more convenient for processing.

[0024] A method for polishing the R angle of a hard and brittle material rotation workpiece comprises the following steps:

[0025] (1) The horizontal and vertical positions of the workpiece clamping mechanism are adjusted by the workpiece position adjustment mechanism. When the rotary workpiece is clamped in the workpiece clamping mechanism, the center of the R angle of the rotary workpiece coincides with the swing center axis of the swing drive mechanism in a vertical plane perpendicular to the swing center axis of the swing drive mechanism and coincides with the axis of the rotary workpiece, thereby completing the position adjustment of the workpiece clamping mechanism.

[0026] (2) Clamping the rotating workpiece with the R angle machined into the workpiece clamping mechanism;

[0027] (3) The rotation drive mechanism drives the workpiece clamping mechanism to rotate, thereby driving 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;

[0029] (5) The workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the specified position, at which point the workpiece grinding mechanism contacts the R corner surface of the rotating workpiece and polishes the R corner of the rotating workpiece;

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

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

[0032] 1. The R-angle polishing device for a rotating workpiece of a hard and brittle material in the present invention drives the rotating workpiece to rotate by a rotation drive mechanism, drives the rotating workpiece to swing by a swing drive mechanism, and contacts the rotating workpiece through the rotation of the workpiece grinding mechanism. The three movements are superimposed on each other to realize automatic polishing processing of the rotating workpiece with high processing efficiency.

[0033] 2. The R-angle polishing device for a rotary workpiece of hard and brittle materials in the present invention, before processing, adjusts the horizontal and vertical positions of the rotary workpiece through a workpiece position adjustment mechanism, so that in a vertical plane perpendicular to the swing center axis of the swing drive mechanism and coinciding with the axis of the rotary workpiece, the center of the R-angle of the rotary workpiece coincides with the swing center axis of the swing drive mechanism. This ensures that the arc portion of the R-angle of the rotary workpiece is precisely controlled and uniformly polished, that is, the outer surface of the R-angle has consistent processing conditions everywhere, ensuring that the outer surface of the R-angle can be uniformly ground everywhere, improving the uniformity and consistency of the polishing process, thereby improving the processing accuracy of the rotary workpiece and meeting the high quality requirements of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the workpiece adjustment module and the horizontal rotation drive mechanism in the present invention.

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

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

[0039] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

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

[0041] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamp in the present invention.

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

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

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

[0045] Figure 12 It is a schematic diagram of the three-dimensional structure of the workpiece grinding mechanism in the present invention.

[0046] Figure 13 It is a schematic diagram of the three-dimensional structure of the second specific embodiment of the R angle polishing device in the present invention.

[0047] Figure 14 It is a schematic diagram of the three-dimensional structure of the automatic loading and unloading module in the present invention.

[0048] Figure 15 It is a schematic diagram of the three-dimensional structure of the workpiece placement mechanism in the present invention.

[0049] Figure 16 It is a schematic diagram of the three-dimensional structure of the second specific embodiment of the clamp in the present invention.

[0050] Figure 17 It is a schematic diagram of the three-dimensional structure of the clamp and part of the clamping drive mechanism in the present invention.

[0051] Figure 18 It is a schematic diagram of the three-dimensional structure of part of the clamping drive mechanism in the present invention.

[0052] Figure 19 It is a schematic diagram of the three-dimensional structure of the workpiece transfer and handling mechanism in the present invention. DETAILED DESCRIPTION

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

[0054] Example 1

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

[0056] See also 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 the rotating workpiece 7; the rotation drive mechanism 4 is used to drive the workpiece clamping mechanism 3 to rotate 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 to drive the rotating workpiece 7 to swing.

[0057] See also Figures 1-12 The rotating workpiece 7 has a circular 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 Figure 2 In the cross section along the AA direction, in this vertical plane 10, the outer contour of the rounded corner of the rotating workpiece 7 is an arc segment, and the center O of the rounded corner 7-1 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 also Figures 1-12 The working principle of the R angle polishing device for the above-mentioned hard and brittle material rotating workpiece is:

[0059] The CNC machined workpiece 7 is subjected to rough machining to produce an R-angle 7-1. This rough machining process is then followed by the R-angle polishing device of this embodiment, which fine-machines and polishes R-angle 7-1. First, the horizontal and vertical positions of the workpiece clamping mechanism 3 are adjusted according to the model and specifications of the workpiece 7 to determine the machining position of the workpiece 7. Specifically, after the workpiece 7 is clamped in the workpiece clamping mechanism 3, the horizontal and vertical positions of the workpiece are adjusted. Different R-angle 7-1 radii and sizes require different machining positions. Specifically, the horizontal position and the vertical position of the workpiece clamping mechanism 3 are adjusted by the workpiece position adjustment mechanism 5. The horizontal position and the vertical position of the workpiece clamping mechanism 3 need to meet the following conditions: when the rotary workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the R angle 7-1 of the rotary workpiece 7 is coincident with the swing center axis 8 of the swing drive mechanism 6 in the vertical plane 10 which is perpendicular to the swing center axis 8 of the swing drive mechanism 6 and coincides with the axis of the rotary workpiece 7. After the above conditions are met, the position adjustment of the workpiece clamping mechanism 3 is completed; the rotary workpiece 7 which has been processed with the R angle 7-1 is clamped in the workpiece clamping mechanism 3. The rotary workpiece 7 is clamped in the workpiece clamping mechanism 3; the rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby driving 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; the workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7 until it reaches the specified position, whereupon 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 polishing of the rotating workpiece 7 is completed, the rotating workpiece 7 is removed from the workpiece clamping mechanism 3, replaced with the next rotating workpiece 7, and the above steps are repeated.

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

[0061] See also 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 open 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 integrated 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 through a clamping bolt 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 close to each other, and the distance between the opening grooves 3-14 becomes smaller, 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, thereby 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 also Figure 1-Figure 5 The rotation drive mechanism 4 includes a 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 transmission mechanism 4-3 that transmits power from the 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 rotation drive motor 4-1 drives its shaft to move, which in turn drives the first belt transmission mechanism 4-3, which in turn drives the transmission rod 4-2, thereby causing the clamp 3-1 to rotate synchronously with the rotating workpiece 7.

[0063] See also Figures 1-11 The swing drive mechanism 6 includes a mounting plate 6-1 provided on the frame 1, a swing frame 6-2 rotatably provided on the mounting plate 6-1, a swing drive motor 6-3 installed on the mounting plate 6-1, and a second belt transmission mechanism 6-4 for transmitting 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 rotating shaft to move, thereby driving the second belt transmission mechanism 6-4 to move, and then driving the swing frame 6-2 to rotate, thereby driving the workpiece position adjustment mechanism 5, the mounting plate 6-1, the self-rotation drive mechanism 4, the clamp 3-1 and the rotating workpiece 7 to swing synchronously. By driving the rotating workpiece 7 to swing, the polishing process of the entire arc surface of the R angle of the rotating workpiece can be achieved.

[0064] See also Figures 1-11 The first belt transmission mechanism 4-3 and the second belt transmission mechanism 6-4 each include a driving pulley, a driven pulley, and a belt. The driving pulley of the first belt transmission 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 rotationally 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 transmission 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 also 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 arranged between the fixed frame 11 and the swing frame 6-2.

[0066] See also Figures 1-12 The horizontal adjustment component includes a horizontal sliding groove 5-2 arranged on the swing frame 6-2, a horizontal sliding protrusion 5-3 arranged on the horizontal sliding block 5-1 and slidingly matched with the horizontal sliding groove 5-2, a horizontal position adjustment bolt 5-4 arranged at one end of the horizontal sliding groove 5-2 and used to adjust 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 adjustment spring 5-6 arranged in the horizontal sliding groove 5-2, one end of the reset adjustment spring 5-6 acts on the horizontal sliding protrusion 5-3, and the other end acts on the other end of the horizontal sliding groove 5-2.

[0067] See also Figures 1-11 The vertical adjustment component includes a vertical sliding groove 5-7 arranged on the horizontal sliding block 5-1, a vertical sliding protrusion 5-8 arranged on the fixing frame 11 and slidingly matched with the vertical sliding groove 5-7, a vertical position adjustment bolt 5-9 arranged 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 for locking the vertical sliding protrusion 5-8 on the vertical sliding groove 5-7.

[0068] See also Figures 1-11In the above structure, the horizontal position adjusting bolt 5-4 and the return adjusting spring 5-6 are respectively arranged 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 the end portion extends into the horizontal sliding groove 5-2 and is pressed against the side of the horizontal sliding protrusion 5-3; by twisting the horizontal position adjusting bolt 5-4 forward or reversely, the position adjustment of the horizontal sliding protrusion 5-3 on the horizontal sliding groove 5-2 is achieved, thereby achieving the position adjustment of the horizontal sliding block 5-1, and finally achieving the synchronous adjustment of the mounting plate 6-1, the rotation drive mechanism 4, the clamp 3-1 and the rotating workpiece 7. When the horizontal position adjustment bolt 5-4 is turned in the forward direction, the elastic force of the reset adjustment spring 5-6 is overcome, pushing the horizontal sliding protrusion 5-3 to move, achieving forward adjustment. During this process, the reset adjustment spring 5-6 is compressed. When the horizontal position adjustment bolt 5-4 is turned in the reverse direction, the elastic force of the reset adjustment spring 5-6 pushes the horizontal sliding protrusion 5-3 to move, so that the horizontal sliding protrusion 5-3 always presses against the horizontal position adjustment bolt 5-4, 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 adjustment 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 rotation drive mechanism 4, the clamp 3-1 and the rotating workpiece 7. When the vertical position adjustment bolt 5-9 is turned in the forward direction, the gravity of the mounting plate 6-1, the self-rotation drive mechanism 4, the clamp 3-1 and the rotating workpiece 7 will be overcome, pushing the vertical sliding protrusion 5-8 to move upward, thereby realizing forward adjustment; when the vertical position adjustment bolt 5-9 is turned in the reverse direction, the gravity of the mounting plate 6-1, the self-rotation drive mechanism 4, the clamp 3-1 and the rotating workpiece 7 will move downward, and the vertical flat sliding protrusion will always be pressed against the vertical position adjustment bolt 5-9, thereby realizing 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 also Figure 1-Figure 2 and Figure 12The workpiece grinding mechanism 2 includes a workpiece grinding assembly vertically slidingly arranged on the frame 1 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 2-1 vertically slidingly arranged on the frame 1, a grinding disc 2-2 rotatably arranged 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, and the grinding disc 2-2 can be driven by the vertical grinding drive mechanism to approach the rotating workpiece 7 until it reaches the specified position, and the grinding disc 2-2 contacts the R angle surface of the rotating workpiece. Through the rotation of the grinding disc 2-2, the self-rotation of the rotating workpiece 7, and the swinging of the rotating workpiece 7, the arc portion of the R angle 7-1 is precisely processed.

[0070] See also Figure 1-Figure 2 and Figure 12 The vertical grinding drive mechanism includes a vertical drive motor 2-4 and a screw drive assembly 2-5 mounted on the frame 1. The screw drive assembly 2-5 is connected to the vertical drive motor 2-4 and the vertical slide 2-1. The screw drive assembly 2-5 is composed of a screw and a screw nut. The vertical drive motor 2-4 drives the screw drive assembly 2-5, which in turn drives the vertical slide 2-1, achieving the lifting and lowering motion of the workpiece grinding assembly.

[0071] See also Figure 1-Figure 2 and Figure 12 The vertical sliding frame 2-1 and the frame 1 are guided by guide rails and sliders.

[0072] See also Figures 1-4 The R-angle polishing device also 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 arranged on the frame 1, and the horizontal rotation drive mechanism 12 includes a horizontal rotation drive motor 12-1 installed on the frame 1, and the output end of the horizontal rotation drive motor 12-1 is connected to the mounting plate 6-1. Through the horizontal rotation drive motor 12-1, the mounting plate 6-1 can be driven to rotate horizontally on the frame 1, thereby adjusting the position of the entire workpiece adjustment module in the horizontal direction. When the processing is completed and the rotary workpiece 7 needs to be removed, the horizontal rotation drive motor 12-1 can be used to move the clamp 3-1 away from the grinding disc 2-2, so that there is enough space to disassemble the rotary workpiece 7, and the installation of the rotary workpiece 7 also becomes very convenient; during processing, the workpiece adjustment module is reset; in addition, by adjusting the position of the rotary workpiece 7 through the horizontal rotation drive mechanism 12, the contact position of the grinding disc 2-2 and the R angle 7-1 can be changed, thereby preventing excessive wear of the grinding disc 2-2 at the same position and improving the polishing accuracy.

[0073] See also 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 also Figure 1-Figure 2 and Figure 12 The grinding disc 2-2 is coated with a polishing material. The purpose is to improve the grinding effect and make the polishing of the R angle 7-1 more uniform and of better quality.

[0075] See also Figure 1-Figure 2 , the frame 1 is a workbench. Its purpose is to make the workbench more convenient for processing.

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

[0077] (1) The horizontal and vertical positions of the workpiece clamping mechanism 3 are adjusted by the workpiece position adjustment mechanism 5. When the rotary workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the R angle 7-1 of the rotary workpiece 7 coincides with the swing center axis 8 of the swing drive mechanism 6 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 of the rotary workpiece 7. After the coincidence, the position is locked, thereby completing the position adjustment of the workpiece clamping mechanism 3.

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

[0079] (3) The rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby driving 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;

[0081] (5) The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7 until it reaches the designated position, whereupon the workpiece grinding mechanism 2 contacts the R corner surface of the rotating workpiece to perform polishing on the R corner of the rotating workpiece;

[0082] (6) After the polishing process 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, and steps (2) to (5) are repeated.

[0083] In the above steps (4) and (5), 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 until it reaches the specified position. The swing drive mechanism 6 drives the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing back and forth. The workpiece grinding mechanism 2 contacts the R angle surface of the rotating workpiece to perform polishing on the R angle of the rotating workpiece.

[0086] Example 2

[0087] See also Figures 13-19 The other structures in this embodiment are the same as those in Example 1, except that the R-angle polishing device also includes an automatic loading and unloading module; the automatic loading and unloading module includes a workpiece placement mechanism 13 arranged on the frame 1 for placing and transferring the rotating workpiece 7, a workpiece transfer and transporting mechanism 15 for transporting 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 also Figure 13-15 The workpiece placement mechanism 13 includes a loading tray 13-1 provided 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 the rotating workpiece 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 set through to facilitate the transportation of the workpiece transfer and handling mechanism 15.

[0089] See also Figure 13-14 and Figure 16-17 The clamp 3-1 includes a rotating connection 3-16 and a tapered clamp located at the lower end of the rotating connection 3-16. The tapered clamp includes multiple arc-shaped clamping members 3-17 distributed along the circumference. A groove 3-15 is located between adjacent arc-shaped clamping members 3-17. A retaining ring 3-19 is located between the rotating connection 3-16 and the tapered clamp. A retaining protrusion 3-10 is located at the lower end of each arc-shaped clamping member 3-17. The retaining protrusion 3-10, arc-shaped clamping members 3-17, retaining ring 3-19, and rotating connection 3-16 form an integrated structure. The diameter of the tapered clamp gradually increases as it moves downward.

[0090] See also Figure 13-14 and Figure 16-Figure 18The clamping drive mechanism 14 includes a fixed mounting frame 14-1 mounted on the frame 1, a shift fork 14-2 mounted on the fixed mounting frame 14-1, a drive ring 14-3 mounted on the tapered clamp, a drive spring 14-4 mounted on the tapered 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 limit 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 frame 14-1 via a guide rod.

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

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

[0093] The horizontal rotation drive mechanism 12 drives the workpiece adjustment module to rotate in the horizontal direction, so that the clamp 3-1 is located in the loading station; in this station, the suction cup 15-1 is also located directly below the clamp 3-1, and the shift fork 14-2 is also located below the clamp 3-1; the clamping drive cylinder 14-5 drives the shift fork 14-2 to move upward, and 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 in the downward direction, the upward movement of the drive ring 14-3 will cause the arc-shaped clamping member 3-17 to open under its own elastic force; the rotating workpiece 7 that has been processed with the R angle 7-1 is transported to the placement slot 13-11, and the loading drive motor 13-2 drives the loading plate 13-1 to rotate, and then The rotating workpiece 7 is driven to rotate, and when the rotating workpiece 7 moves to the corresponding lower part of the fixture 3-1, the rotation stops; the transfer cylinder 15-2 drives the suction cup 15-1 to move upward, and after adsorbing the rotating workpiece 7, it continues to move upward, passes through the placement slot 13-11, and transports the rotating workpiece 7 to the fixture 3-1, and the clamping drive cylinder 14-5 drives the shift fork 14-2 to move downward; the driving spring 14-4 resets, pushing the driving ring 14-3 to move downward, and due to the increase in the diameter of the conical clamp, the driving ring will push the arc clamping member 3-17 to close at the same time (close inward); multiple arc clamping members 3-17 clamp the rotating workpiece 7 on the suction cup 15-1; after clamping, the arc clamping member 3-17 cannot continue to move (return). The limiting effect of the rotating workpiece 7) will prevent the driving ring 14-3 from moving downward, and under the elastic force of the driving spring 14-4, the rotating workpiece 7 is stably clamped in the fixture 3-1; the transfer handling cylinder 15-2 drives the suction cup 15-1 to move downward, away from the fixture 3-1; the horizontal rotation driving 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 is driven to move to the grinding station, where 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 driving 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 corresponds, that is, the fixture 3-1 is located in the loading station; the transfer transport cylinder 15-2 drives the suction cup 15-1 to move upward, and the rotating workpiece 7 on the fixture 3-1 is adsorbed; 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, the drive ring 14-3 moves upward, and the arc-shaped clamping member 3-17 opens under the action of its own elastic force, thereby releasing the rotating workpiece 7; the transfer transport cylinder 15-2 drives the suction cup 15-1 to move downward, and transports the rotating workpiece 7 back to the placement groove 13-11, and the transfer transport cylinder 15-2 drives the suction cup 15-1 to continue to move downward, away from the placement groove 13-11;The loading drive motor 13-2 rotates the loading tray 13-1, moving the polished workpiece 7 away from the fixture 3-1. The next workpiece 7 then moves directly under the fixture 3-1, and the above steps are repeated, achieving automatic loading and unloading and polishing. The polished workpiece 7 is then moved away from the loading tray 13-1 by a handling device, and the workpiece 7 to be processed is then moved to an empty placement slot 13-11, achieving fully automatic loading and unloading. Compared to existing technologies, this is more efficient.

[0094] See also Figures 13-19 This embodiment also discloses a method for polishing the R angle of a hard and brittle material rotation workpiece, comprising 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 rotary workpiece 7 is clamped in the workpiece clamping mechanism 3, the center O of the R angle 7-1 of the rotary workpiece 7 coincides with the swing center axis 8 of the swing drive mechanism 6 in a vertical plane 10 perpendicular to the swing center axis 8 of the swing drive mechanism 6 and coinciding with the axis of the rotary workpiece 7. After the coincidence, the positions are locked, thereby completing the position adjustment of the workpiece clamping mechanism 3.

[0096] (S2) The rotary workpiece 7 on which the 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 below the position corresponding to the fixture 3-1;

[0097] (S3) The workpiece transfer mechanism 15 transfers the rotating workpiece 7 located on the workpiece placement mechanism 13 and directly below the fixture 3-1 to the fixture 3-1;

[0098] (S4) The clamping drive mechanism 14 drives the clamp 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 rotary workpiece 7 to rotate until the rotary workpiece 7 corresponds to the workpiece grinding mechanism 2;

[0100] (S6) the rotation drive mechanism 4 drives the workpiece clamping mechanism 3 to rotate, thereby driving 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;

[0102] (S8) The workpiece grinding mechanism 2 rotates and gradually approaches the rotating workpiece 7 until it reaches a designated position, whereupon the workpiece grinding mechanism 2 contacts the R corner surface of the rotating workpiece to perform polishing on the R corner of the rotating workpiece;

[0103] (S9) After the machining is completed, the swing drive mechanism 6 and the 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 rotary workpiece 7 to rotate until the rotary workpiece 7 corresponds to the workpiece placement mechanism 13;

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

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

[0107] (S13) Workpiece placement mechanism 13 moves the next rotary workpiece 7 to the position corresponding to fixture 3-1; repeating steps (S3) through (S13). The polished rotary workpiece 7 is removed from workpiece placement mechanism 13; the unpolished rotary workpiece 7 is moved to workpiece placement mechanism 13, achieving automated loading.

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

[0109] Step (S7): The swing drive mechanism 6 may 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 until it reaches the specified position. The swing drive mechanism 6 drives the workpiece clamping mechanism 3 and the rotating workpiece 7 to swing back and forth. The workpiece grinding mechanism 2 contacts the R angle surface of the rotating workpiece to polish the R angle of the rotating workpiece.

[0111] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A device for polishing the R angle of a rotating workpiece made of hard and brittle material, characterized in that: It includes a frame, a workpiece adjustment module and a workpiece grinding mechanism arranged on the frame; 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 the rotating workpiece; the rotation drive mechanism is used to drive the workpiece clamping mechanism to rotate to drive 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 to drive the rotating workpiece to swing; The rotating workpiece has a circular 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.

2. The R angle polishing device according to claim 1, characterized in that: The workpiece adjustment module also includes a fixed frame, and the workpiece clamping mechanism includes a clamp rotatably set on the fixed frame for clamping the rotating workpiece; the clamp is connected to the 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.

3. The R angle polishing device according to claim 2, characterized in that: The rotation drive mechanism includes a rotation drive motor mounted on a fixed frame, a transmission rod rotatably arranged on the fixed frame, and a first belt transmission mechanism for transmitting power of the rotation drive motor to the transmission rod, wherein the transmission rod is fixedly connected to the clamp.

4. The R angle polishing device according to claim 2, characterized in that: The swing drive mechanism includes a mounting plate mounted on a frame, a swing frame rotatably mounted on the mounting plate, a swing drive motor mounted on the mounting plate, and a second belt transmission mechanism for transmitting power from 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.

5. The R angle polishing device according to claim 4, characterized in that: The workpiece position adjustment mechanism includes a horizontal sliding block, a horizontal adjustment component and a vertical adjustment component arranged between the fixed frame and the swing frame; wherein, The horizontal adjustment assembly includes a horizontal sliding groove provided on the swing frame, a horizontal sliding protrusion provided on the horizontal sliding block and slidingly matched with the horizontal sliding groove, a horizontal position adjustment bolt provided 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 return adjustment spring provided in the horizontal sliding groove, one end of the return adjustment spring acting on the horizontal sliding protrusion and the other end acting on the other end of the horizontal sliding groove; The vertical adjustment assembly includes a vertical sliding groove arranged on the horizontal sliding block, a vertical sliding protrusion arranged on the fixing frame and slidingly cooperating with the vertical sliding groove, a vertical position adjustment bolt arranged 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 for locking the vertical sliding protrusion on the vertical sliding groove.

6. The R angle polishing device according to claim 1, characterized in that: The workpiece grinding mechanism includes a workpiece grinding assembly vertically slidably arranged 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 vertically slidably arranged on the frame, a grinding disc rotatably arranged on the vertical sliding frame, and a grinding drive motor for driving the grinding disc to rotate.

7. The R angle polishing device according to claim 6, characterized in that: The vertical grinding drive mechanism includes a vertical drive motor and a screw transmission assembly arranged on a frame; the screw transmission assembly is connected to the vertical drive motor and the vertical sliding frame.

8. The R angle polishing device according to claim 6, characterized in that: The grinding disc is coated with polishing material.

9. The R angle polishing device according to claim 1, characterized in that: The frame is a workbench.

10. A method for polishing the R angle of a hard and brittle material rotating workpiece, characterized in that: The R angle polishing method is applied to the R angle polishing device according to any one of claims 1 to 9, comprising the following steps: (1) The horizontal and vertical positions of the workpiece clamping mechanism are adjusted by the workpiece position adjustment mechanism. When the rotary workpiece is clamped in the workpiece clamping mechanism, the center of the R angle of the rotary workpiece coincides with the swing center axis of the swing drive mechanism in a vertical plane perpendicular to the swing center axis of the swing drive mechanism and coincides with the axis of the rotary workpiece, thereby completing the position adjustment of the workpiece clamping mechanism. (2) Clamping the rotating workpiece with the R angle machined into the workpiece clamping mechanism; (3) The rotation drive mechanism drives the workpiece clamping mechanism to rotate, thereby driving the rotating workpiece to rotate; (4) The swing drive mechanism drives the workpiece clamping mechanism and the rotating workpiece to swing back and forth; (5) The workpiece grinding mechanism rotates and gradually approaches the rotating workpiece until it reaches the specified position, at which point the workpiece grinding mechanism contacts the R corner surface of the rotating workpiece and polishes the R corner of the rotating workpiece; (6) After the polishing process of the rotating workpiece is completed, the rotating workpiece is removed from the workpiece clamping mechanism, and the next rotating workpiece is replaced, and steps (2) to (5) are repeated.

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