Rotating part grinding device and equipment

Abstract

The utility model discloses a rotating member grinding device and equipment, which comprises an index plate, a rotating seat, a clamp and a straightening component, the rotating seat is rotatably mounted on the index plate, the clamp is mounted on the rotating seat, and the index plate and the straightening component are mounted on a workbench; the clamp comprises a fixing base, an adjusting assembly and an elastic piece. The fixed seat is fixed on the rotating seat, and the fixed seat is matched with the middle hole of the rotating piece; the adjusting assembly is mounted on the fixed seat in a manner of moving up and down, and the elastic piece is arranged between the fixed seat and the adjusting assembly; when the adjusting assembly moves, the rotating piece can be pressed on the rotating seat; when the adjusting assembly moves, the elastic piece can trend to deform, so that the elastic piece abuts against the inner wall of the middle hole of the rotating piece; the straightening assembly can be inserted into the cutting groove of the rotating piece and can push the inner wall of the cutting groove of the rotating piece to adjust the position of the workpiece on the clamp. By means of the structure, the rotating part can be more accurately positioned on equipment, and the positioning device has the beneficial effects of being rapid in clamping, convenient and fast to align and the like.

Description

Technical Field

[0001] The utility model relates to the field of grinding equipment, in particular to a rotating part grinding device and equipment. Background Art

[0002] Currently, there are two most similar machine tools. One is various grinding wheel grinding machines with fixed worktables, such as hob grinders. Their disadvantage is that they cannot rotate and index. The other is machine tools with four-axis linkage operation, such as boring machines and machining centers. However, their manufacturability for machining deep grooves with a surface hardness of HRC60 or above on rotating parts is poor, and the machining process is prone to serious tool deflection, resulting in low precision and low efficiency.

[0003] The prior art with announcement number CN110625407A discloses an automatic centering clamping device for hollow rotating parts, which includes a base, a centering assembly, a clamping assembly, a fixing assembly and a stop rod. The centering assembly includes a centering base and a circumferential outer cone. The circumferential outer cone has an inner hole. The centering assembly cooperates with the outer circumferential surface of the hollow rotating part through the inner hole. The clamping assembly includes a clamping base and a circumferential inner cone. The circumferential inner cone cooperates with the circumferential outer cone to clamp and fix the outer circumferential surface of the hollow rotating part. The fixing assembly includes a fixing rod and a clamping head. The clamping head is used to clamp and fix the end face of the hollow rotating part to limit the movement of the hollow rotating part along the axial direction of the hollow rotating part. The stop rod cooperates with the hollow rotating part to limit the rotation of the hollow rotating part around the axial direction of the hollow rotating part.

[0004] The existing technology uses the circular side walls of the device and the end walls of the rotating part for positioning. However, due to the manufacturing errors of the rotating parts, especially the larger manufacturing error requirements for shell-type rotating parts, the subsequent processing accuracy of the rotating parts is lower. Utility Model Content

[0005] In order to solve the problem of low positioning accuracy of devices and rotating parts in the prior art, the purpose of the present utility model is to provide a rotating part grinding device and equipment, which has higher positioning accuracy of the device and rotating parts, can perform high-precision processing on rotating parts, and ensure the consistency of the processed rotating parts.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a rotating part grinding device, including a dividing plate, a rotating seat, a clamp and a straightening assembly, the rotating seat is rotatably installed on the dividing plate, the clamp is installed on the rotating seat, and the dividing plate and the straightening assembly are installed on the workbench; the clamp includes a fixed seat, an adjusting assembly and an elastic member; the fixed seat is fixed on the rotating seat, and the fixed seat matches the center hole of the rotating part; the adjusting assembly is installed on the fixed seat in a manner that can move up and down, and the elastic member is arranged between the fixed seat and the adjusting assembly; the adjusting assembly can press the rotating part on the rotating seat when it moves; the adjusting assembly can tend to deform the elastic member when it moves, so that the elastic member is against the inner wall of the center hole of the rotating part; the straightening assembly can be inserted into the cutting groove of the rotating part, and the straightening assembly can push the inner wall of the cutting groove of the rotating part to adjust the position of the workpiece on the clamp.

[0007] Preferably, the adjustment assembly includes an adjustment seat, which is threadedly connected to the central position of the fixed seat, the top of the adjustment seat protrudes from the fixed seat, and the elastic member is sleeved on the top of the adjustment seat.

[0008] Preferably, a notch is provided on the top of the adjustment seat, and the square tenon wrench can drive the adjustment seat to rotate through the notch, so that the adjustment seat moves up and down on the fixed seat.

[0009] Preferably, an adjusting portion is provided on the adjusting seat, and the elastic member is located between the adjusting portion and the fixed seat; when the adjusting seat rotates, it can move up and down on the fixed seat, thereby changing the state of the elastic member.

[0010] Preferably, the elastic member is a wave spring sheet, which is trumpet-shaped and tilts upward from outside to inside, and the middle position of the wave spring sheet abuts against the adjustment portion of the adjustment seat.

[0011] Preferably, the adjustment assembly includes a pressing piece and a bolt, the pressing piece is arranged above the adjustment seat, and the bolt passes through the adjustment seat and the pressing piece and is threadedly connected to the fixed seat; the pressing piece is located on the inner side of the rotating member.

[0012] Preferably, a pressing portion is raised on the bottom of the pressing piece, and the pressing piece is pressed against the rotating piece through the pressing portion.

[0013] Preferably, the straightening assembly includes a support and a straightening rod, the support is provided with a slot, the two supports are arranged on both sides of the clamp, the support is fixedly connected to the workbench, the straightening rod is provided with an eccentric part, and the two ends of the straightening rod are respectively connected to the two supports.

[0014] Preferably, a plurality of support seats are fixed on the rotating seat, and the plurality of support seats are evenly arranged around the fixed seat; a plurality of positioning seats are fixed on the rotating seat, and the plurality of positioning seats are evenly arranged around the fixed seat, and the support seats are located inside the positioning seats.

[0015] A rotating part grinding device comprises the rotating part grinding device mentioned above.

[0016] The beneficial effects of the technical solution of the present invention are as follows: the above-mentioned device is positioned with the center hole of the rotating part, thereby providing the positioning accuracy of the rotating part and the device; the above-mentioned device adapts to the center hole of the rotating part through the fixed seat and the elastic part, thereby further improving the positioning accuracy of the rotating part and the device; the above-mentioned device pushes the side wall of the groove of the rotating part through the straightening component, thereby being able to adjust the position of the rotating part on the device according to the specifications of the rotating part, while improving the positioning accuracy of the rotating part and the device, it can also match the device with rotating parts of different specifications; the above-mentioned device can improve the efficiency of high-speed and high-efficiency grinding deep groove forming, so that the position and angle accuracy of the groove can reach more than level 5, and the above-mentioned device has the characteristics of easy operation, fast clamping, and convenient alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the rotating parts grinding equipment Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the rotating parts grinding equipment Figure 2 ;

[0019] Figure 3 It is a structural diagram of the rotating parts grinding equipment;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating part grinding equipment after the correction component is removed;

[0021] Figure 5 is a structural diagram of the straightening component;

[0022] Figure 6 Schematic diagram of the structure of the straightening rod;

[0023] Figure 7 It is a structural diagram of the pressing piece;

[0024] Figure 8 Schematic diagram of the connection structure between the rotating part and the fixture.

[0025] Reference numerals: 11, frame; 12, workbench; 13, square wrench; 14, mounting base; 15, fifth motor; 16, grinding wheel;

[0026] 2. Indexing plate;

[0027] 3. Rotating seat; 31. Positioning seat; 32. Support seat;

[0028] 4. Fixed seat;

[0029] 5. Adjustment seat; 51. Adjustment part;

[0030] 6. Bolts;

[0031] 7. Elastic parts;

[0032] 8. Pressing piece; 81. Pressing portion; 82. Through hole;

[0033] 9. Straightening assembly; 91. Straightening rod; 92. Eccentric portion; 93. Support; 94. Slot;

[0034] 10. Rotating parts; 101. Grooving. DETAILED DESCRIPTION

[0035] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] The following embodiments are described in terms of Figure 1 The directions shown are subject to Figure 1 In the figure, the position of the grinding wheel 16 is the top, the position of the workbench 12 is the bottom, the up-down direction is the vertical direction, the position of the rotating seat is the right, and the left-right direction is the axial direction; then the front-back direction is the longitudinal direction. Example

[0041] like Figures 1 to 8 The rotating part grinding device shown includes a dividing plate 2, a rotating base 3, a fixture, and a straightening assembly 9. The rotating base 3 is rotatably mounted on the dividing plate 2, the fixture is mounted on the rotating base 3, the dividing plate 2 is fixed on a workbench, and the straightening assembly 9 is mounted on the workbench.

[0042] The fixture includes a fixed seat 4, an adjustment assembly, and an elastic member 7; the fixed seat 4 is fixed to the rotating seat 3 and matches the center hole of the rotating member; the adjustment assembly is mounted on the fixed seat 4 in a manner that allows it to move up and down, and the elastic member 7 is arranged between the fixed seat 4 and the adjustment assembly; when the adjustment assembly moves, it can press the rotating member onto the rotating seat 3; when the adjustment assembly moves, it can tend to deform the elastic member 7, so that the elastic member 7 abuts against the inner wall of the center hole of the rotating member;

[0043] The straightening assembly 9 can be inserted into the cut groove 101 of the rotating member 10 , and the straightening assembly 9 can push the inner wall of the cut groove 101 of the rotating member 10 to adjust the position angle of the workpiece on the fixture.

[0044] With such arrangement, the above-mentioned device is positioned with the center hole of the rotating part 10, thereby being able to provide the positioning accuracy of the rotating part 10 and the device; the above-mentioned device adapts to the center hole of the rotating part 10 through the fixing seat 4 and the elastic part 7, thereby further improving the positioning accuracy of the rotating part 10 and the device; the above-mentioned device pushes the side wall of the groove 101 of the rotating part 10 through the straightening component 9, thereby being able to adjust the position of the rotating part 10 on the device according to the specifications of the rotating part 10, while improving the positioning accuracy of the rotating part 10 and the device, it can also match the device with rotating parts 10 of different specifications; the above-mentioned device can improve the efficiency of high-speed and high-efficiency grinding deep groove forming, so that the position and angle accuracy of the groove 101 reach higher than level 5, and the above-mentioned device has the characteristics of easy operation, fast clamping, and convenient alignment.

[0045] In this embodiment, Figure 3 、 Figure 4 and Figure 8 As shown, the adjustment assembly includes an adjustment seat 5, which is threadedly connected to the center of the fixed seat 4. The top of the adjustment seat 5 protrudes from the fixed seat 4, and the elastic member 7 is sleeved on the top of the adjustment seat 5. Furthermore, the adjustment seat 5 is provided with an adjustment portion 51, and the elastic member 7 is located between the adjustment portion 51 and the fixed seat 4. When the adjustment seat 5 rotates, it can move up and down on the fixed seat 4, thereby changing the state of the elastic member 7. This arrangement can simplify the structure of the device, and the adjustment seat 5 does not need to match the center hole of the rotating member 10. By replacing the fixed seat 4, it can match with rotating members 10 of different specifications.

[0046] In this embodiment, a notch is provided on the top of the adjusting seat 5 , and the square wrench 13 can drive the adjusting seat 5 to rotate through the notch, so that the adjusting seat 5 moves up and down on the fixing seat 4 .

[0047] In this embodiment, the elastic member 7 is a corrugated spring sheet. The corrugated spring sheet is trumpet-shaped and tilts upward from the outside to the inside. The center of the corrugated spring sheet abuts against the adjustment portion 51 of the adjustment seat 5. This arrangement ensures more uniform deformation of the elastic member 7. In other embodiments, the elastic member 7 can also be a rubber block.

[0048] In this embodiment, Figure 3 and Figure 4 As shown, a positioning hole is provided on the rotating seat 3, and a positioning portion is raised at the bottom of the fixed seat 4. The positioning portion is plugged into the positioning hole, and the fixed seat 4 is fixedly connected to the rotating seat 3 by a fastener. This arrangement facilitates the connection and matching of the fixed seat 4 and the rotating seat 3.

[0049] In this embodiment, Figure 3 、 Figure 4 、 Figure 7 and Figure 8As shown, the adjustment assembly includes a pressure piece 8 and a bolt 6. The pressure piece 8 is positioned above the adjustment seat 5. The bolt 6 passes through a through hole 82 in the pressure piece 8 and the adjustment seat 5, and then is threadedly connected to the fixed seat 4. The pressure piece 8 is located inside the rotating member 10. This arrangement facilitates the installation of the rotating member 10. Furthermore, the pressure piece 8 has a raised pressing portion 81 at the bottom, through which the pressure piece 8 abuts against the rotating member 10. Furthermore, the bolt 6 is tightened using a square wrench 13.

[0050] In this embodiment, Figures 3 to 6 As shown, the straightening assembly 9 includes a support 93 and a straightening rod 91. The support 93 is provided with a slot 94. The two supports 93 are respectively arranged on both sides of the fixture. The support 93 is fixedly connected to the workbench 12. The straightening rod 91 is provided with an eccentric portion. The two ends of the straightening rod 91 are respectively plugged into the two supports 93. The two eccentric portions 92 are respectively inserted into the two slots of the rotating part 10. Rotating the straightening rod 91 can make the eccentric portion 92 push the inner wall of the groove 101 of the rotating part 10 to adjust the position of the rotating part 10 on the fixture. With such a configuration, the eccentric rod can adjust the position of the rotating part 10 on the device according to the rough processing accuracy of the rotating part 10, and the same straightening rod 91 can also match rotating parts 10 of different specifications. Furthermore, the support 93 is fixed to the workbench by screws and positioning keys to ensure that the parallelism of the slot 94 is consistent with the T-slot of the workbench, thereby ensuring the parallelism of the grinding wheel grinding. In this embodiment, the straightening rod and the eccentric portion are both cylindrical.

[0051] In this embodiment, Figure 4 As shown, a plurality of support seats 32 are fixed on the rotating seat 3, and the plurality of support seats 32 are evenly arranged around the fixed seat 4; a plurality of positioning seats 31 are fixed on the rotating seat 3, and the plurality of positioning seats 31 are evenly arranged around the fixed seat 4, and the support seats 32 are located inside the positioning seats 31. This arrangement facilitates the rough positioning of the rotating member 10.

[0052] In this embodiment, a frame 11 is included, a mounting seat 14 is mounted on the frame 11 in a liftable manner, a grinding wheel 16 is rotatably mounted on the mounting seat 14; and a workbench is mounted on the frame 11 in an axially movable and longitudinally movable manner.

[0053] Furthermore, the mounting seat 14 slides in cooperation with the frame 11, and a vertically arranged first screw rod is installed on the frame 11, and the first screw rod is threadedly connected to the mounting seat 14, the first motor is installed on the frame 11, and the lifting motor is connected to the first screw rod, and the first motor can drive the mounting seat 14 to move vertically; the bed is slidably mounted on the frame, and a horizontally arranged second screw rod is installed on the frame 11, and the second screw rod is threadedly connected to the bed body, the second motor is mounted on the frame 11, and the second motor is connected to the second screw rod, and the second motor can drive the bed body to move axially; the worktable is slidably mounted on the bed, and a longitudinally arranged third screw rod is installed on the bed, and the third screw rod is threadedly connected to the worktable 12, the third motor is mounted on the frame 11, and the third motor is connected to the third screw rod, and the third motor can drive the worktable 12 to move longitudinally; a fourth motor is installed on the indexing plate 2, and the motor shaft of the fourth motor is connected to the rotating seat 3, and the fourth motor can drive the rotating seat 3 to rotate

[0054] In this embodiment, a fifth motor 15 is mounted on the mounting seat 14 , and a grinding wheel 16 is mounted on the motor shaft of the fifth motor; the grinding wheel 16 is a CBN grinding wheel 16 .

[0055] A rotating part grinding device includes the above-mentioned rotating part grinding device and a PLC system for braking and controlling the above-mentioned rotating part 10 grinding device.

[0056] In this embodiment, the vertical direction is the Z direction, the axial direction is the X direction, the longitudinal direction is the Y direction, and the axial direction of the fourth motor is the B direction. Such an arrangement can realize four-axis linkage when processing the rotating part 10; the dividing plate 2 is a high-precision hirth dividing plate 2.

[0057] The following steps are included when using the above-mentioned equipment to process the rotating part 10:

[0058] Rough centering: Place the rotating member 10 between the multiple positioning seats 31, press the support seat 32 with the bottom of the rotating member 10, and insert the top of the fixed seat 4 into the middle hole of the rotating member 10 to complete the rough centering;

[0059] Quick alignment: Insert the straightening rod 91 into the slot 101 of the rotating part 10, so that the two eccentric parts 92 of the rotating part are respectively located in the two slots 101; then rotate the straightening rod 91, and the eccentric parts 92 of the straightening rod 91 force the rotating part 10 to rotate, so that the surface to be processed of the slot 101 is flush with the eccentric parts 92, achieving the purpose of straightening, ensuring uniform grinding allowance, and avoiding overload of the grinding wheel 16 and burns on the surface of the rotating part 10;

[0060] Fine centering: Use the square wrench 13 to insert it into the notch of the adjusting seat 5, rotate the square wrench 13 to rotate the adjusting seat 5, and the adjusting seat 5 moves downward under the action of the thread between the adjusting seat 5 and the fixed seat. The downward movement of the adjusting seat 5 forces the elastic member 7 to deform and expand. The elastic member 7 contacts the inner wall of the center hole of the rotating member 10, driving the rotating member 10 to move, so that the rotation center of the rotating member 10 is concentric with the rotating seat 3, completing the fine centering;

[0061] Fastening: Place the pressing piece 8 inside the rotating piece 10, pass the bolt 6 through the pressing piece and the adjusting seat and then thread it into the fixed seat 4, use the square wrench 13 to turn the bolt 6 to move the bolt 6 downward, so that the head of the bolt 6 presses the pressing piece 8, and the rotating piece 10 is firmly pressed on the support seat 32 through the pressing piece 8, completing the clamping;

[0062] Machining: The grinding wheel 16 moves in the Z direction, while the worktable 12 reciprocates in the X direction. The high-speed grinding wheel 16 grinds the sides and bottom of the groove 101 of the rotating component 10, achieving a smooth surface and ensuring groove position accuracy in a single pass. The first, second, and third motors control the movement of the indexing plate 2 and the grinding wheel 16, controlling the cutting depth of the grinding wheel 16. The fourth motor rotates the indexing plate 2 about its B-axis for indexing, completing the machining of all deep grooves of the rotating component 10 in a single clamping operation.

[0063] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A rotating part grinding device, characterized in that: The invention comprises a dividing plate (2), a rotating seat (3), a fixture and a straightening assembly (9), wherein the rotating seat (3) is rotatably mounted on the dividing plate (2), the fixture is mounted on the rotating seat (3), and the dividing plate (2) and the straightening assembly (9) are mounted on a workbench (12); The clamp comprises a fixed seat (4), an adjusting component and an elastic member (7); the fixed seat (4) is fixed on the rotating seat (3), and the fixed seat (4) matches the middle hole of the rotating member (10); the adjusting component is mounted on the fixed seat (4) in a manner capable of moving up and down, and the elastic member (7) is arranged between the fixed seat (4) and the adjusting component; when the adjusting component moves, the rotating member (10) can be pressed against the rotating seat (3); when the adjusting component moves, the elastic member (7) can be deformed so that the elastic member (7) and the inner wall of the middle hole of the rotating member (10) are pressed against each other; The straightening assembly (9) can be inserted into the cutting groove of the rotating part (10), and the straightening assembly (9) can push the inner wall of the cutting groove (101) of the rotating part (10) to adjust the position of the workpiece on the fixture.

2. The rotating part grinding device according to claim 1, characterized in that: The adjustment assembly includes an adjustment seat (5), the adjustment seat (5) is threadedly connected to the central position of the fixed seat (4), the top of the adjustment seat (5) protrudes from the fixed seat (4), and the elastic member (7) is sleeved on the top of the adjustment seat (5).

3. The rotating part grinding device according to claim 2, characterized in that: A notch is provided on the top of the adjusting seat (5), and the square tenon wrench (13) can drive the adjusting seat (5) to rotate through the notch, so that the adjusting seat (5) moves up and down on the fixing seat (4).

4. The rotating part grinding device according to claim 2, characterized in that: An adjusting portion (51) is provided on the adjusting seat (5), and the elastic member (7) is located between the adjusting portion (51) and the fixed seat (4); when the adjusting seat (5) rotates, it can move up and down on the fixed seat (4), thereby changing the state of the elastic member (7).

5. The rotating part grinding device according to claim 4, characterized in that: The elastic member (7) is a wave spring sheet, which is trumpet-shaped and tilts upward from the outside to the inside. The middle position of the wave spring sheet abuts against the adjustment portion (51) of the adjustment seat (5).

6. The rotating part grinding device according to claim 2, characterized in that: The adjustment assembly includes a pressing piece (8) and a bolt (6). The pressing piece (8) is arranged above the adjustment seat (5). The bolt (6) passes through the adjustment seat (5) and the pressing piece (8) and is threadedly connected to the fixed seat (4). The pressing piece (8) is located inside the rotating member (10).

7. The rotating part grinding device according to claim 6, characterized in that: The bottom of the pressing piece (8) is convex with a pressing portion (81), and the pressing piece (8) is pressed against the rotating piece (10) through the pressing portion (81).

8. The rotating part grinding device according to claim 1, characterized in that: The straightening assembly (9) includes a support (93) and a straightening rod (91). The support (93) is provided with a slot (94). The two supports (93) are respectively provided on both sides of the clamp. The support (93) is fixedly connected to the workbench (12). The straightening rod (91) is provided with an eccentric portion (92). The two ends of the straightening rod (91) are respectively plugged into the two supports (93).

9. The rotating part grinding device according to claim 1, characterized in that: A plurality of support seats (32) are fixed on the rotating seat (3), and the plurality of support seats (32) are evenly arranged around the fixed seat (4); a plurality of positioning seats (31) are fixed on the rotating seat (3), and the plurality of positioning seats (31) are evenly arranged around the fixed seat (4), and the support seats (32) are located inside the positioning seats (31).

10. A rotating part grinding device, characterized in that: A rotating part grinding device comprising any one of claims 1 to 9.

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