Rotating shaft grinding device with rust scraping function and rust removal method thereof

Abstract

The present invention discloses a rotary shaft grinding device with a rust scraping function and a rust removal method thereof, comprising a main frame (1), on which a feeding mechanism (2), an inner hole grinding assembly (3) and an outer hole grinding assembly (4) are sequentially arranged; a temporary storage table (5) is arranged at the discharge end of the feeding mechanism (2) for temporarily storing workpieces so that the workpieces are in a waiting position for processing; a rust removal station (60) is arranged at one end of the temporary storage table (5); the rust removal station (60) comprises a translational working piece (62), a radial adjustment assembly (63), a rust removal assembly (12) and a top pressure piece (64); the movable end of the translational working piece (62) is connected to the radial adjustment assembly (63), the adjustment end of the radial adjustment assembly (63) is connected to the rust removal assembly (12), and the top pressure piece (64) is arranged above the rust removal station (60). The present invention changes the size of the grinding end through a variable diameter structure, adapts to different workpieces, effectively scrapes rust, and improves the flexibility of use.

Description

Technical Field

[0001] The invention relates to the field of machining production lines, and in particular to a rotary shaft grinding device with a rust scraping function and a rust removal method thereof. Background Art

[0002] Rotating shafts are a common type of workpiece in mechanical processing production. After the size processing is completed, the roughness of the rotating shafts is usually polished. Rotating shafts are processed in large quantities during production in the workshop. Due to the large number of workpieces, these workpieces will be stacked. Due to long-term stacking, a certain amount of rust will occur on the inner wall of the shaft, so this type of rust needs to be removed. There is a grinding device, such as the Chinese utility model patent with announcement number CN218312721U, which discloses a bracket, a grinding mechanism, a supporting mechanism and a clamping mechanism arranged on the bracket in sequence along the horizontal direction; the grinding mechanism includes a moving seat slidably connected to the bracket and a power member for driving the moving seat to move along the length direction of the bracket, the moving seat is provided with a rust removal rod for cleaning the inner wall of the steel pipe, a rust removal cylinder for cleaning the outer wall of the steel pipe, and a driving member for driving the rust removal rod and the rust removal cylinder to rotate; the supporting mechanism includes a bracket slidably connected to the bracket along the length direction of the bracket, and the bracket is provided with a concave cavity with an opening facing upward for the steel pipe to be embedded; the clamping mechanism includes a fixed pipe fixedly connected to the bracket and two connecting rods, when the end of the steel pipe is inserted into the fixed pipe, the end of the two connecting rods is located inside the steel pipe, and the parts of the two connecting rods located in the steel pipe are commonly connected to a telescopic rod with the same adjustable length, and both ends of the telescopic rod are provided with a tightening plate that abuts against the inner wall of the steel pipe. This type of grinding device is similar to conventional grinding equipment. First, the workpiece is fixed, and then the grinding piece is inserted into the workpiece to remove the rust on the inner wall of the workpiece. However, this type of grinding equipment also has some shortcomings: 1. The rust on the inner wall of the workpiece will have different thicknesses, and the grinding method follows the same thickness grinding method, so the rust removal effect will be less than ideal; 2. The different sizes of rotating shafts require the selection of grinding components of different specifications. This type of grinding component can only grind shafts of one specification, and its scope of use is relatively small. Summary of the invention

[0003] The purpose of the present invention is to provide a rotary shaft grinding device with rust scraping function and a rust removal method thereof. The present invention changes the size of the grinding end through a variable diameter structure, adapts to different workpieces, effectively scrapes rust, and improves the flexibility of use.

[0004] The technical solution of the present invention is as follows: a rotary shaft grinding device with a rust scraping function comprises a main frame, on which a feeding mechanism, an inner hole grinding assembly and an outer hole grinding assembly are sequentially arranged; the rotary shaft grinding device also comprises a temporary storage table, which is located at the discharge end of the feeding mechanism and is used for temporary storage of workpieces, and the workpieces are in a position to be processed;

[0005] The rust removal station is arranged at one end of the temporary storage table, and the rust removal station comprises a translation workpiece, a radial adjustment component, a rust removal component and a top pressure component. The movable end of the translation workpiece is connected to the radial adjustment component, the adjustment end of the radial adjustment component is connected to the rust removal component, and the top pressure component is arranged above the rust removal station; the translation workpiece is used to control the advance and retreat of the radial adjustment component and the rust removal component inside the workpiece, the radial adjustment component is used to control the diameter size of the rust removal component, and the top pressure component is used to press down to fix the position of the workpiece;

[0006] A turnover clamping assembly is arranged on one side of the rust removal station, the inner hole grinding assembly and the outer hole grinding assembly. The turnover clamping assembly is used to circulate the workpiece between multiple processing assemblies.

[0007] In the above-mentioned rotating shaft grinding equipment with rust scraping function, the translational working part includes rust removal support plates arranged on the main frame and located at both ends of the temporary storage table, and an axis body for placing the workpiece is arranged between the rust removal support plates on both sides, and an air cylinder is provided on the rust removal support plate, and a motor plate is provided at the protruding end of the cylinder, a rust removal motor is provided on the motor plate, and a transmission shaft is provided at the protruding end of the rust removal motor; the radial adjustment component is arranged at the end of the transmission shaft.

[0008] In the aforementioned rotating shaft grinding equipment with rust scraping function, the radial adjustment component includes a plurality of intermediate support rods arranged at the outer end of the transmission shaft with the transmission shaft as the center, the rust removal component is slidably arranged at the end of the intermediate support rod, and a guide column is provided on the rod body of the rust removal component; a gear fixing plate is provided on the transmission shaft, and a driving gear is connected to the gear fixing plate via a motor, and an adjusting toothed disk meshing with the driving gear is provided at the end of the transmission shaft via a bearing, and a plurality of arc grooves matching the guide column are provided on the disk surface of the adjusting toothed disk.

[0009] In the aforementioned rotating shaft grinding equipment with rust scraping function, the rust removal component includes a sliding rod slidably arranged on the middle support rod, the guide column is arranged on the sliding rod, an arc-shaped main body is arranged at the end of the sliding rod, and multiple rust removal groups are evenly arranged on the outer arc surface of the arc-shaped main body.

[0010] In the aforementioned rotating shaft grinding equipment with rust scraping function, the rust removal group is composed of two rust removal blades, which are obliquely arranged on the outer arc surface of the arc-shaped body. The two rust removal blades are arranged opposite to each other and have a cavity on the lower side; a detachable side panel is provided on the side of the arc-shaped body.

[0011] In the aforementioned rotating shaft grinding equipment with rust scraping function, the inner hole grinding assembly includes a workpiece placement seat arranged on a main frame, a sliding assembly is provided on one side of the main frame, an inner grinding piece is provided on the moving end of the sliding assembly, and the grinding end of the inner grinding piece has an inner hole grinding head.

[0012] In the aforementioned rotating shaft grinding equipment with rust scraping function, the outer hole grinding assembly includes a grinding station frame arranged on a main frame, and a rotating shaft is symmetrically arranged inside the grinding station frame; a shaft motor is arranged at one end of the main frame, and the protruding end of the shaft motor is connected to the rotating shaft via a belt drive; outer hole grinding cylinders are arranged at both ends of the grinding station frame, and an outer hole grinding head is arranged at the protruding end of the outer hole grinding cylinder; a workpiece rotation thrust assembly is arranged on the main frame and above the grinding station frame.

[0013] In the aforementioned rotating shaft grinding equipment with rust scraping function, the workpiece rotation thrust assembly includes a lifting cylinder arranged at the upper end of a main frame, the protruding end of the lifting cylinder is connected to a lifting frame, an active motor is arranged in the lifting frame, and the protruding end of the active motor is connected to a power roller in contact with the workpiece via a belt drive.

[0014] In the aforementioned rotating shaft grinding equipment with rust scraping function, the turnover clamping assembly includes a slide rail set on the main frame table, a linear motor is provided on the slide rail, a turnover seat is provided on the linear motor, lifting cylinders are provided at both ends of the turnover seat, and a clamping cylinder for clamping the workpiece is provided at the protruding end of the lifting cylinder through the longitudinal slide rail.

[0015] In the rust removal method of the rotary shaft grinding device with the rust scraping function, the specific steps are as follows:

[0016] Step 1, the workpiece is fed through the feeding mechanism, the workpiece is sent to the temporary storage table, the turnover clamping assembly sends the workpiece to the rust removal station, the top pressure piece fixes the workpiece, and the translation workpiece brings the radial adjustment assembly and the rust removal assembly into the workpiece. The diameter size of the rust removal assembly adjusted by the radial adjustment assembly can meet the size of the inner side of the workpiece. Then the translation workpiece drives the rust removal assembly to rotate to remove the rust on the inner side of the workpiece. In the process of scraping off the rust layer, as the rust layer is removed, the inner diameter of the workpiece becomes larger, and the radius position of the rust removal assembly is adjusted in time;

[0017] Step 2: The turnover clamping assembly sends the rust-removed workpiece to the inner hole grinding assembly for inner hole grinding, and then sends it to the outer hole grinding assembly for outer hole grinding.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. In the present invention, the workpiece enters the temporary storage table through the feeding mechanism, the turnover clamping clamping assembly will place the workpiece on the shaft body, the translation working piece will send the radial adjustment assembly and the rust removal assembly to the inside of the workpiece, and the radial adjustment assembly will be started at the same time. According to the actual inner diameter size of the workpiece, the diameter size of the rust removal assembly will be changed, so that the scraping end of the rust removal assembly can be close to the inner wall of the workpiece, and the translation working piece drives the rust removal assembly to rotate to scrape off the rust on the inner wall of the workpiece; the position of the rust removal assembly is changed by the radial adjustment assembly, thereby realizing the diameter change of the entire rust removal end, improving the flexibility of rust removal, and expanding the scope of use.

[0020] 2. The rust removal end of the rust removal component is a blade structure. The rust on the inner wall of the workpiece is scraped off by the blade. The scraped rust powder can be temporarily stored in the cavity, which is convenient for collecting the rust powder and preventing the scraped powder from falling randomly.

[0021] 3. The turnover clamping assembly is set at both ends of the turnover seat to achieve simultaneous material replacement of workpieces in different processes, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 Schematic diagram for adjusting the position of the toothed disc;

[0024] Figure 3 is a schematic diagram of a guide column;

[0025] Figure 4 is a schematic diagram of a rust removal component;

[0026] Figure 5 A schematic diagram of an inner hole grinding assembly;

[0027] Figure 6 is a schematic diagram of a turnover clamping assembly;

[0028] Figure 7 is a schematic diagram of a linear motor;

[0029] Figure 8 Schematic diagram of the external hole grinding assembly.

[0030] Explanation of the marks in the accompanying drawings: 1-main frame, 2-feeding mechanism, 3-inner hole grinding assembly, 4-outer hole grinding assembly, 5-temporary storage table, 6-rust removal support plate, 7-extending cylinder, 8-motor plate, 9-rust removal motor, 10-transmission shaft, 11-middle support rod, 12-rust removal assembly, 13-guide column, 14-gear fixing plate, 15-driving gear, 16-adjusting toothed disc, 17-arc groove, 18-top cylinder, 19-pressing block, 20-turnaround clamping assembly, 21-axis body, 121-sliding rod, 122-arc body, 123-rust removal group, 124-rust removal blade, 125-empty Cavity, 126-side plate, 31-workpiece placement seat, 32-sliding assembly, 33-inner grinding piece, 34-inner hole grinding head, 41-grinding station frame, 42-rotating shaft, 43-axis motor, 44-outer hole grinding cylinder, 45-outer hole grinding head, 46-workpiece rotation thrust assembly, 47-lifting cylinder, 48-lifting frame, 49-active motor, 50-power roller, 201-slide rail, 202-linear motor, 203-revolving seat, 204-lifting cylinder, 205-gripping claw cylinder, 60-rust removal station, 62-translational workpiece, 63-radial adjustment assembly, 64-top pressure piece. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0032] Embodiment: A rotary shaft grinding device with rust scraping function comprises a main frame 1, as shown in the attached Figure 1 As shown, a feeding mechanism 2, an inner hole grinding assembly 3 and an outer hole grinding assembly 4 are sequentially mounted on a main frame 1; the feeding mechanism is mainly composed of a conveyor belt, and a plurality of partition bars are evenly arranged on the belt surface of the conveyor belt. The workpiece is between the partition bars, and as the conveyor belt rotates, the workpiece can be transported inward; the rotary shaft grinding device also includes:

[0033] A temporary storage table 5, which is located at the discharge end of the feeding mechanism 2 and is used for temporarily storing workpieces, and the workpieces are in a position to be processed;

[0034] The rust removal station 60 is arranged at one end of the temporary storage table 5. The rust removal station 60 includes a translation workpiece 62, a radial adjustment component 63, a rust removal component 12 and a top pressure component 64. The movable end of the translation workpiece 62 is connected to the radial adjustment component 63, the adjustment end of the radial adjustment component 63 is connected to the rust removal component 12, and the top pressure component 64 is arranged above the rust removal station 60; the translation workpiece 62 is used to control the advance and retreat of the radial adjustment component 63 and the rust removal component 12 inside the workpiece, the radial adjustment component 63 is used to control the diameter size of the rust removal component 12, and the top pressure component 64 is used to press down to fix the workpiece position;

[0035] The turnover clamping assembly 20 is arranged on one side of the rust removal station 60, the inner hole grinding assembly 3 and the outer hole grinding assembly 4. The turnover clamping assembly 20 is used to circulate the workpiece between multiple processing assemblies.

[0036] The translation workpiece 62 includes a rust removal support plate 6 arranged on the main frame 1 and located at both ends of the temporary storage table 5, and an axle body 21 for placing the workpiece is installed between the rust removal support plates 6 on both sides. The axles are symmetrically placed, and the workpiece is placed between the axles. An extended cylinder 7 is installed on the rust removal support plate 6, and its main function is to move the parts connected to the end of the extended cylinder into it. A motor plate 8 is installed at the extended end of the extended cylinder 7, and a rust removal motor 9 is installed on the motor plate 8. The extended end of the rust removal motor 9 is connected to the transmission shaft 10; the radial adjustment component 63 includes a shaft arranged on the transmission shaft The outer end of 10 is a plurality of intermediate support rods 11 centered on the transmission shaft 10, and a rust removal assembly 12 is slidably installed at the end of the intermediate support rod 11. The rust removal motor rotates to drive the rust removal drill to rotate, and the outer end of the rust removal assembly scrapes off the rust powder; the rust removal assembly 12 includes a slide rod 121 slidably arranged on the intermediate support rod 11, the guide column 13 is arranged on the slide rod 121, the end of the slide rod 121 has an arc-shaped main body 122, and a plurality of rust removal groups 123 are evenly installed on the outer arc surface of the arc-shaped main body 122; the rust removal group 123 is composed of two rust removal blades 124, as shown in the attached Figure 4 As shown, the rust removal blade 124 is tiltedly arranged on the outer arc surface of the arc-shaped main body 122, and the two rust removal blades 124 are arranged opposite to each other and have a cavity 125 on the lower side; a detachable side plate 126 is installed on the side of the arc-shaped main body 122, and the side can be removed to facilitate the pouring of powder. The rust removal blade rotates to scrape off the rust on the inner wall of the workpiece, and part of the rust powder will fall into the cavity to be collected to avoid powder flying; a guide column 13 is installed on the rod body of the rust removal component 12; a gear fixing plate 14 is provided on the transmission shaft 10, and a driving gear 15 is connected to the gear fixing plate 14 via a motor, and an adjusting toothed disc 16 meshing with the driving gear 15 is provided at the end of the transmission shaft 10 via a bearing, as shown in the attached Figure 2 and 3 As shown, the disk surface of the adjusting toothed disk 16 is provided with a plurality of arc grooves 17 which match with the guide column 13. By rotating the adjusting toothed disk, the arc grooves on the disk surface will limit the movement of the guide column, thereby driving the rust removal assembly to move on the middle support rod; the top pressure member 64 includes a top cylinder 18 installed on the upper end of the rust removal support plate 6 on one side, and a pressure block 19 is installed on the protruding end of the top cylinder 18. The top cylinder extends downward, and the pressure block presses the workpiece to achieve pressing and fixing of the workpiece, so as to facilitate stable grinding of the inner wall of the workpiece; a turnover clamping assembly 20 for workpiece displacement is installed on the main frame 1 and on one side of the rust removal support plate 6, as shown in the attached figure. Figure 6 and 7As shown, the turnover clamping assembly 20 includes a slide rail 201 set on the table top of the main frame 1, a linear motor 202 is installed on the slide rail 201, a turnover seat 203 is installed on the linear motor 202, lifting cylinders 204 are installed at both ends of the turnover seat 203, and a clamping cylinder 205 for clamping the workpiece is installed at the protruding end of the lifting cylinder 204 through the longitudinal slide rail. When clamping the workpiece, the clamping cylinder will clamp the workpiece, and when moving the workpiece, the lifting cylinder will lift the workpiece to prevent the workpiece from touching other components during the movement.

[0037] The inner hole grinding assembly 3 includes a workpiece placement seat 31 arranged on the main frame 1, as shown in the attached Figure 5 As shown, a sliding assembly 32 is installed on one side of the main frame 1, and an inner grinding piece 33 is installed on the moving end of the sliding assembly 32. The grinding end of the inner grinding piece 33 has an inner hole grinding head 34. A pressure block is also installed on the upper end of the workpiece placement seat. The pressure block is driven by a cylinder to press the workpiece, and the sliding assembly extends the inner hole grinding head into it. The motor in the inner grinding piece rotates, causing the inner hole grinding head to rotate.

[0038] The outer hole grinding assembly 4 includes a grinding station frame 41 arranged on the main frame 1, as shown in the attached Figure 8 As shown, a rotating shaft 42 is symmetrically installed in the grinding station frame 41; a shaft motor 43 is installed at one end of the main frame 1, and the extended end of the shaft motor 43 is connected to the rotating shaft 42 through a belt drive; external hole grinding cylinders 44 are installed at both ends of the grinding station frame 41, and the extended end of the external hole grinding cylinder 44 is connected to an external hole grinding head 45; a workpiece rotation thrust assembly 46 is installed on the main frame 1 and above the grinding station frame 41, and the workpiece rotation thrust assembly 46 includes a main frame 1 and a main frame 2; The lifting cylinder 47 at the upper end of the frame 1 has a lifting frame 48 connected to its protruding end, an active motor 49 installed in the lifting frame 48, and a power roller 50 in contact with the workpiece is connected to its protruding end via a belt drive. The lifting cylinder moves the power roller to be in close contact with the workpiece, and the workpiece rotates under the drive of the power roller. The outer hole grinding cylinder extends the outer hole grinding head into the workpiece, and the outer hole grinding head does not rotate, and the workpiece rotates, thereby achieving grinding of the inner wall of the outer hole.

[0039] The rust removal method for the rotary shaft grinding device with rust scraping function is implemented, and the specific steps are as follows:

[0040] Step 1: The workpiece is fed through the feeding mechanism. The workpiece is sent to the temporary storage table. The jaw cylinder of the turnover clamping assembly moves to clamp the workpiece. Then the lifting cylinder lifts the workpiece and sends it to the shaft body. The top cylinder above the shaft body presses down, and the pressure block presses the workpiece tightly.

[0041] Step 2, insert the cylinder to run, insert the cylinder to put the rust removal component into the workpiece, the active gear rotates to drive the adjusting toothed disc to rotate, the rust removal components around the middle support rod will move, according to the actual inner diameter size of the workpiece, adjust the toothed disc to rotate, and drive the rust removal component to move outward or inward through the guide column, so that the scraping end of the rust removal component can be close to the inner wall of the workpiece, the rust removal motor rotates, drives the rust removal component to rotate, and scrapes off the rust on the inner wall of the workpiece. Secondly, in the process of scraping off the rust layer, as the rust layer is removed, the inner diameter of the workpiece becomes larger, and the radius position of the rust removal component is adjusted in time;

[0042] Step 3: The rust removal component is a blade structure. The rust on the inner wall of the workpiece is scraped off by the blade. The scraped rust powder can be temporarily stored in the cavity, which is convenient for collecting the rust powder and preventing the scraped powder from falling randomly.

[0043] The working principle of the present invention is as follows: the workpiece enters the temporary storage table through the feeding mechanism, the turnover clamping clamping assembly will place the workpiece on the shaft body, and the cylinder will be extended to drive the rust removal assembly into the workpiece. The active gear rotates to drive the adjusting toothed disc to rotate, and the rust removal assembly around the middle support rod will move. According to the actual inner diameter size of the workpiece, the toothed disc is adjusted to rotate, and the rust removal assembly is driven to move outward or inward through the guide column, so that the scraping end of the rust removal assembly can be close to the inner wall of the workpiece, and the rust removal motor rotates to drive the rust removal assembly to rotate and scrape off the rust on the inner wall of the workpiece; the position of the rust removal assembly is changed by the transmission of the gear, thereby realizing the diameter change of the entire rust removal end, improving the flexibility of rust removal, and expanding the scope of use.

Claims

1. A rotary shaft grinding device with a rust scraping function, comprising a main frame (1), on which a feeding mechanism (2), an inner hole grinding component (3) and an outer hole grinding component (4) are sequentially arranged; the device is characterized in that: The rotary shaft grinding device also includes: A temporary storage table (5) is located at the discharge end of the feeding mechanism (2) and is used to temporarily store the workpiece so that the workpiece is in a position to be processed; A rust removal station (60) is arranged at one end of the temporary storage table (5); the rust removal station (60) comprises a translational working piece (62), a radial adjustment component (63), a rust removal component (12) and a pressing piece (64); the movable end of the translational working piece (62) is connected to the radial adjustment component (63), the adjustment end of the radial adjustment component (63) is connected to the rust removal component (12), and the pressing piece (64) is arranged above the rust removal station (60); the translational working piece (62) is used to control the advance and retreat of the radial adjustment component (63) and the rust removal component (12) inside the workpiece, the radial adjustment component (63) is used to control the diameter size of the rust removal component (12), and the pressing piece (64) is used to press downward to fix the position of the workpiece; A turnover clamping assembly (20) is provided on one side of the rust removal station (60), the inner hole grinding assembly (3) and the outer hole grinding assembly (4), and the turnover clamping assembly (20) is used to rotate a workpiece between a plurality of processing assemblies.

2. The rotary shaft grinding device with rust scraping function according to claim 1 is characterized in that: The translation workpiece (62) comprises a rust removal support plate (6) arranged on the main frame (1) and located at both ends of the temporary storage table (5); a shaft body (21) for placing a workpiece is arranged between the rust removal support plates (6) on both sides; a cylinder (7) is arranged on the rust removal support plate (6); a motor plate (8) is arranged at the protruding end of the cylinder (7); a rust removal motor (9) is arranged on the motor plate (8); and a transmission shaft (10) is arranged at the protruding end of the rust removal motor (9); and the radial adjustment component (63) is arranged at the end of the transmission shaft (10).

3. The rotary shaft grinding device with rust scraping function according to claim 2 is characterized in that: The radial adjustment component (63) comprises a plurality of intermediate support rods (11) arranged at the outer end of the transmission shaft (10) with the transmission shaft (10) as the center; the rust removal component (12) is slidably arranged at the end of the intermediate support rod (11); a guide column (13) is provided on the rod body of the rust removal component (12); a gear fixing plate (14) is provided on the transmission shaft (10); a driving gear (15) is connected to the gear fixing plate (14) via a motor; an adjustment toothed disc (16) meshing with the driving gear (15) is provided at the end of the transmission shaft (10) via a bearing; a plurality of arc grooves (17) matching with the guide column (13) are provided on the disc surface of the adjustment toothed disc (16).

4. The rotary shaft grinding device with rust scraping function according to claim 3 is characterized in that: The rust removal assembly (12) comprises a slide rod (121) slidably arranged on the middle support rod (11); the guide column (13) is arranged on the slide rod (121); an arc-shaped main body (122) is arranged at the end of the slide rod (121); and a plurality of rust removal groups (123) are evenly arranged on the outer arc surface of the arc-shaped main body (122).

5. The rotary shaft grinding device with rust scraping function according to claim 4, characterized in that: The rust removal group (123) is composed of two rust removal blades (124), which are arranged obliquely on the outer arc surface of the arc-shaped main body (122). The two rust removal blades (124) are arranged opposite to each other and have a cavity (125) on the lower side. A detachable side plate (126) is provided on the side of the arc-shaped main body (122).

6. The rotary shaft grinding device with rust scraping function according to claim 1, characterized in that: The inner hole grinding assembly (3) comprises a workpiece placement seat (31) arranged on a main frame (1), a sliding assembly (32) is arranged on one side of the main frame (1), an inner grinding piece (33) is arranged on the movable end of the sliding assembly (32), and the grinding end of the inner grinding piece (33) has an inner hole grinding head (34).

7. The rotary shaft grinding device with rust scraping function according to claim 1, characterized in that: The outer hole grinding assembly (4) comprises a grinding station frame (41) arranged on a main frame (1), and a rotating shaft (42) is symmetrically arranged in the grinding station frame (41); a shaft motor (43) is arranged at one end of the main frame (1), and the protruding end of the shaft motor (43) is connected to the rotating shaft (42) via a belt drive; an outer hole grinding cylinder (44) is arranged at both ends of the grinding station frame (41), and an outer hole grinding head (45) is arranged at the protruding end of the outer hole grinding cylinder (44); and a workpiece rotation thrust assembly (46) is arranged on the main frame (1) and above the grinding station frame (41).

8. The rotary shaft grinding device with rust scraping function according to claim 7, characterized in that: The workpiece rotation thrust assembly (46) comprises a lifting cylinder (47) arranged at the upper end of the main frame (1), the protruding end of the lifting cylinder (47) is connected to a lifting frame (48), an active motor (49) is arranged in the lifting frame (48), and the protruding end of the active motor (49) is connected to a power roller (50) in contact with the workpiece via a belt drive.

9. The rotary shaft grinding device with rust scraping function according to claim 1, characterized in that: The revolving clamping assembly (20) comprises a slide rail (201) arranged on the tabletop of the main frame (1), a linear motor (202) being arranged on the slide rail (201), a revolving seat (203) being arranged on the linear motor (202), lifting cylinders (204) being arranged at both ends of the revolving seat (203), and a clamping claw cylinder (205) for clamping a workpiece being arranged at the protruding end of the lifting cylinder (204) via the longitudinal slide rail.

10. The rust removal method for a rotary shaft grinding device with rust scraping function according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1, the workpiece is fed through the feeding mechanism, the workpiece is sent to the temporary storage table, the turnover clamping assembly sends the workpiece to the rust removal station, the top pressure piece fixes the workpiece, and the translation workpiece brings the radial adjustment assembly and the rust removal assembly into the workpiece. The diameter size of the rust removal assembly adjusted by the radial adjustment assembly can meet the size of the inner side of the workpiece. Then the translation workpiece drives the rust removal assembly to rotate to remove the rust on the inner side of the workpiece. In the process of scraping off the rust layer, as the rust layer is removed, the inner diameter of the workpiece becomes larger, and the radius position of the rust removal assembly is adjusted in time; Step 2: The turnover clamping assembly sends the rust-removed workpiece to the inner hole grinding assembly for inner hole grinding, and then sends it to the outer hole grinding assembly for outer hole grinding.

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