Flywheel cover shell surface polishing device
By designing a flywheel cover surface grinding device that adapts to the adjustment and movement components of different flywheel cover models, the problem of poor model adaptability in the existing technology is solved, achieving efficient all-round grinding and dust reduction, and improving processing efficiency and quality.
Patent Information
- Application Number
- CN202423159027.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing flywheel cover processing equipment cannot adapt to different models of flywheel covers, resulting in low processing efficiency and only partial end face grinding.
A flywheel cover surface polishing device was designed, comprising a worktable, support, upright, adjustment component, moving component, polishing component, and dust suppression component. The polishing position can be adjusted by the left and right adjustment component and the moving component. Combined with the detachable polishing head, it can achieve all-round polishing of different models of flywheel covers. The device is also equipped with a dust suppression component to handle dust.
It improves the processing efficiency and quality of flywheel covers, can adapt to different models of flywheel covers, ensures stability and efficient grinding effect, and reduces dust pollution.
Smart Images
Figure CN223802257U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of flywheel cover processing, in particular to a flywheel cover shell surface polishing device. BACKGROUND
[0002] Flywheel cover is a component installed between automobile engine and transmission, and its main function is to connect the engine body, protect and bear. Flywheel cover is usually made of cast iron, and its shape is similar to a basin. Since it is cast processing, the end face of the flywheel shell needs to be ground and leveled during flywheel shell processing, so that the flywheel shell can be connected with the engine cylinder. The grinding device with dust prevention structure for engine flywheel shell processing disclosed in the prior art announcement No. CN215659503U comprises a device bottom plate, a support vertical rod is fixedly installed on the upper surface of the device bottom plate, a grinding roller is rotatably installed on the inner surface of the support vertical rod, a grinding motor is fixedly installed on the outer surface of the support vertical rod, the rotating shaft of the grinding motor is fixedly connected with the grinding roller, the flywheel shell jig is fixedly installed on the upper surface of the jig mounting table through the jig fixing hole, the flywheel shell is fixed through the jig, then the rotating handle is rotated and shaken, so that the drive screw drives the jig mounting table to move towards the grinding roller, and the grinding roller grinds the grinding end face of the flywheel shell. However, the flywheel cover has different sizes, the flywheel shell and the jig mounting table are fixedly installed, and the grinding roller and the support vertical rod are fixedly installed at a certain height, which may cause some flywheel shells to be unable to contact the grinding roller during grinding, and the end face can only be ground partially when the end face is ground, and other end faces can only be ground after the flywheel shell is reinstalled on the jig mounting table, thereby reducing the processing efficiency. SUMMARY
[0003] To solve the above technical problems, the utility model provides a flywheel cover shell surface polishing device which improves the polishing range, can polish different types of flywheel covers, and improves the processing quality.
[0004] The utility model discloses a flywheel cover surface polishing device, including work table, support, two vertical rods, roof, mobile cross seat, left and right adjusting assembly, moving assembly, polishing assembly, fixed component and dust fall component, the bottom fixed connection of work table has the support, and the top rear side both ends fixed mounting of work table has the vertical rod, and the top connection of vertical rod has the roof, and the roof is installed left and right adjusting assembly, and the bottom installation of left and right adjusting assembly has mobile cross seat, and the lower part installation of mobile cross seat has moving assembly, and the bottom output of moving assembly installs polishing assembly, and the both ends installation of work table top has fixed component, and the bottom installation of work table has dust fall component, the stability of guaranteeing polishing is installed in the top of work table through fixed component to the flywheel cover, and the left and right movement of mobile cross seat is driven through left and right adjusting assembly, and simultaneously, moving assembly can drive polishing assembly to move back and forth, make the polishing head worktable top moves, adjust the polishing position, be convenient for to the flywheel cover different position polishing, can process the flywheel cover of different model, be favorable to improving the processing efficiency.
[0005] Preferably, the left and right adjusting assembly comprises two fixed blocks, a guide support rod, a threaded rod, a transmission, a moving seat, a guide slider, a threaded block and a lifting component, a limiting sliding groove is formed in the front end of the inner top plate, the two fixed blocks are installed on the top of the top plate on the left and right sides of the limiting sliding groove, the guide support rod is fixedly installed between the front ends of the two fixed blocks, the threaded rod is rotatably installed between the rear ends of the two fixed blocks, the right side input end of the threaded rod is connected with the output end of the transmission, the input end of the transmission is provided with a servo motor, the moving seat is limitingly and slidably installed in the limiting sliding groove, the guide slider is fixedly connected to the front end of the upper part of the moving seat, the threaded block is fixedly installed on the rear end of the upper part of the moving seat, the guide slider is slidably installed on the guide support rod, the threaded block is screwed on the threaded rod, and the mobile cross seat is located below the moving seat.
[0006] Preferably, the lifting component comprises an electric telescopic rod and two T-shaped limiting sliding rods, the electric telescopic rod is fixedly installed in the middle of the moving seat, the bottom telescopic end of the electric telescopic rod is fixedly connected with the top of the mobile cross seat, the T-shaped limiting sliding rods are limitingly and slidably installed at the left and right ends of the moving seat, and the bottom of the T-shaped limiting sliding rod is connected with the top end of the mobile cross seat.
[0007] Preferably, the moving assembly comprises a second threaded rod, a driving motor, a second moving base, a motor box and two hanging slides, the moving cross base is provided with a moving sliding groove in the lower part, the second threaded rod is rotatably installed in the moving sliding groove, the rear input end of the second threaded rod is connected with the output end of the driving motor, the moving cross base is provided with a hanging sliding groove in the bottom about the moving sliding groove, the second moving base is slidably installed in the moving sliding groove, and the middle part of the second moving base is screwed on the outer wall of the second threaded rod, the bottom of the second moving base is connected with the motor box, the top of the motor box is fixedly connected with the hanging slides at the left and right ends, and the hanging slides are slidably installed in the hanging sliding groove; the driving motor is started to drive the second threaded rod to rotate, so that the second moving base moves forward and backward in the moving sliding groove, the front and back positions of the motor box above the workbench are adjusted, so that the polishing position is adjusted, and the hanging slides slide in the hanging sliding groove when the motor box moves, so that the stability is ensured.
[0008] Preferably, the polishing assembly comprises a polishing motor, a rotating disc, a connecting column and a polishing head, the polishing motor is installed in the motor box, the output end of the polishing motor is provided with the rotating disc which is installed through the bottom of the motor box, the rotating disc is provided with a guide rotating ring above, the motor box is provided with a hanging rotating groove which is matched with the guide rotating ring in the bottom, the guide rotating ring is rotatably installed in the hanging rotating groove, the connecting column is concentrically installed at the bottom of the rotating disc, the connecting column and the bottom of the rotating disc are provided with reinforcing ribs, the connecting column is provided with a plug-in groove in the bottom, and the polishing head is plugged in the plug-in groove in the top and connected through bolts; the polishing motor is started to drive the rotating disc to rotate, the rotating disc drives the polishing head to rotate through the connecting column, the flywheel cover is polished, the guide rotating ring is driven to rotate in the hanging rotating groove when the rotating disc rotates, the stability is ensured, and the detachable polishing head can be replaced with different models according to the processing needs.
[0009] Preferably, the fixing assembly comprises a rotating rod, a clamping motor, two fixing sliding blocks, two clamping seats, two clamping studs, two clamping plates, two sets of guide sliding rods and two second rotating discs, a clamping sliding groove is formed in the top of the workbench, the rotating rod is rotatably installed in the clamping sliding groove, threaded grooves are symmetrically formed in the left and right sides of the rotating rod, the left input end of the rotating rod is connected with the output end of the clamping motor, the rotating rod is installed on the left side wall of the workbench, the two fixing sliding blocks are symmetrically and slidably installed in the clamping sliding groove and are screwed into the threaded grooves of the rotating rod, the clamping seats are installed at the top of the fixing sliding blocks, the clamping studs are screwed on the clamping seats, the clamping plate is rotatably installed between the two clamping studs, the guide sliding rods are limitingly and slidably installed on the front and rear sides of the clamping seat and are fixedly connected with the outer wall of the clamping plate, and the second rotating discs are installed at the ends, away from the clamping plate, of the clamping studs; the flywheel cover is placed between the two clamping plates, the clamping motor is started to drive the rotating rod to rotate and make the fixing sliding blocks move in the clamping sliding groove, thereby driving the clamping seat to move on the top of the workbench, the approximate range of the clamping plate is adjusted, then according to the shape of the flywheel cover, the second rotating discs are rotated respectively to make the clamping studs move on the clamping seat, the distance between the clamping plate and the clamping seat is adjusted, and the two clamping plates clamp the flywheel cover, the guide sliding rods slide on the clamping seat when the clamping plate moves, the stability is ensured, and the clamping effect is improved.
[0010] Preferably, the dust falling assembly comprises two dust suction boxes, an air duct, a dust suction pipe and an air extractor, a plurality of dust suction grooves are formed in the top of the workbench, the dust suction boxes are installed on the bottom of the workbench and are communicated with the dust suction grooves, a collection drawer is arranged in the dust suction box, the bottom of the collection drawer is a filter screen, the input end of the dust suction pipe is communicated with the inside of the clamping sliding groove, the output end of the dust suction pipe is communicated with the inside of the dust suction box, the air duct is communicated with the bottoms of the two dust suction boxes, and the air extractor is installed in the middle of the air duct; the air extractor is started to extract air in the two dust suction boxes through the air duct, negative pressure is generated in the inside of the dust suction box, the dust generated during polishing falls onto the surface of the workbench and then enters the dust suction box through the dust suction groove, the dust suction pipe can also suck the dust in the clamping sliding groove, the dust falls into the collection drawer and is blocked by the filter screen, and the collection drawer can be cleaned regularly.
[0011] Compared with the prior art, the flywheel cover is installed on the top of the workbench through the fixing assembly, the stability during polishing is ensured, the moving cross seat is driven to move left and right through the left-right adjusting assembly, the polishing assembly can be driven to move forward and backward through the moving assembly, the polishing head moves above the workbench, the polishing position is adjusted, different positions of the flywheel cover can be polished, different models of flywheel covers can be processed, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model;
[0013] Figure 2Is the axial measurement structure schematic diagram of the utility model;
[0014] Figure 3 Is the front view structure schematic diagram of the utility model;
[0015] Figure 4 Is the local section structure schematic diagram of the utility model;
[0016] Figure 5 Is the left section structure schematic diagram of the utility model;
[0017] Figure 6 Is the right view section structure schematic diagram of the utility model;
[0018] In the drawing, mark: 1, workbench;2, support;3, vertical rod;4, top plate;5, fixed block;6, guide support rod;7, threaded rod;8, transmission;9, moving seat;10, guide sliding block;11, threaded block;12, moving cross seat;13, electric telescopic rod;14, T-shaped limit sliding rod;16, second threaded rod;17, drive motor;18, second moving seat;19, motor box;20, hang loading slide;21, polishing motor;22, rotary table;23, connecting column;24, polishing head;25, rotary rod;26, clamping motor;27, fixed sliding block;28, clamping seat;29, clamping stud;30, clamping plate;31, guide sliding rod;32, second rotary table;33, dust collection box;34, air duct;35, dust collection pipe;36, air extractor. DETAILED DESCRIPTION
[0019] In order to facilitate understanding the utility model, below will be with reference to relevant drawings more comprehensive description of the utility model. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0020] Embodiment 1
[0021] As Figure 1 , Figure 2 , Figure 5 And Figure 6As shown, the bottom of the workbench 1 is fixedly connected with a support 2, the top of the workbench 1 is fixedly installed with vertical rods 3 at the left and right ends of the rear side, the top of the vertical rod 3 is connected with a top plate 4, the inside of the front end of the top plate 4 is provided with a limiting sliding groove, two fixed blocks 5 are installed on the top of the top plate 4 at the left and right sides of the limiting sliding groove, a guide support rod 6 is fixedly installed between the front ends of the two fixed blocks 5, a threaded rod 7 is rotatably installed between the rear ends of the two fixed blocks 5, the right side input end of the threaded rod 7 is connected with the output end of a speed changer 8, the input end of the speed changer 8 is provided with a servo motor, a moving seat 9 is limitingly and slidingly installed in the limiting sliding groove, a guide sliding block 10 is fixedly connected to the upper front end of the moving seat 9, a threaded block 11 is fixedly installed on the upper rear end of the moving seat 9, the guide sliding block 10 is slidingly installed on the guide support rod 6, the threaded block 11 is screwed on the threaded rod 7, a moving cross seat 12 is below the moving seat 9, a moving sliding groove is formed in the lower part of the moving cross seat 12, a second threaded rod 16 is rotatably installed in the moving sliding groove, the rear side input end of the second threaded rod 16 is connected with the output end of a driving motor 17, a hanging sliding groove is symmetrically formed in the bottom of the moving cross seat 12 about the moving sliding groove, a second moving seat 18 is slidingly installed in the moving sliding groove, and the second moving seat 18 is screwed on the outer wall of the second threaded rod 16 at the middle part, a motor box 19 is connected to the bottom of the second moving seat 18, hanging sliding seats 20 are fixedly connected to the top plate 4 at the left and right ends of the top of the motor box 19, the hanging sliding seats 20 are slidingly installed in the hanging sliding groove, a polishing motor 21 is installed in the inside of the motor box 19, a rotating disc 22 is installed on the output end of the polishing motor 21 through the bottom of the motor box 19, a guide rotating ring is installed above the rotating disc 22, a hanging rotating groove matched with the guide rotating ring is formed in the bottom of the motor box 19, the guide rotating ring is rotatably installed in the hanging rotating groove, a connecting column 23 is concentrically installed at the bottom of the rotating disc 22, a reinforcing rib is arranged between the connecting column 23 and the bottom of the rotating disc 22, a plug-in groove is formed in the bottom of the connecting column 23, a polishing head 24 is plug-in installed in the plug-in groove and connected through bolts;
[0022] The servo motor drives the threaded rod 7 to rotate through the speed changer 8, the moving seat 9 is moved in the limiting sliding groove through the threaded block 11, thereby driving the moving cross seat 12 to move left and right, adjusting the position of the moving cross seat 12 above the workbench 1, the moving seat 9 drives the guide sliding block 10 to slide on the guide support rod 6 when moving, supporting and guiding the moving seat 9, ensuring the stability when moving, the second threaded rod 16 is driven to rotate by starting the driving motor 17, thereby driving the second moving seat 18 to move forward and backward in the moving sliding groove, adjusting the forward and backward position of the motor box 19 above the workbench 1, thereby adjusting the polishing position, the hanging sliding seat 20 is slidingly installed in the hanging sliding groove when the motor box 19 moves, ensuring the stability, the rotating disc 22 is driven to rotate by starting the polishing motor 21, the rotating disc 22 drives the polishing head 24 to rotate through the connecting column 23, thereby polishing the flywheel cover, the guide rotating ring is driven to rotate in the hanging rotating groove when the rotating disc 22 rotates, ensuring the stability, the detachable polishing head 24 can be replaced with different models according to the processing needs.
[0023] Embodiment 2
[0024] As Figure 3 , Figure 4 and Figure 6 shown, on the basis of embodiment 1, further comprising a motor telescopic rod 13 fixedly installed in the middle of the moving seat 9, the bottom telescopic end of the motor telescopic rod 13 is fixedly connected with the top of the moving cross seat 12, T-shaped limiting sliding rods 14 are slidingly installed at the left and right ends of the moving seat 9, the bottom of the T-shaped limiting sliding rod 14 is connected with the top end of the moving cross seat 12, a clamping sliding groove is formed in the top of the workbench 1, a rotating rod 25 is rotatably installed in the clamping sliding groove, screw grooves are symmetrically formed in the left and right sides of the rotating rod 25, the left input end of the rotating rod 25 is connected with the output end of the clamping motor 26, the rotating rod 25 is installed on the left side wall of the workbench 1, two fixed sliding blocks 27 are symmetrically slidingly installed in the clamping sliding groove, and the fixed sliding blocks 27 are screwed into the screw grooves of the rotating rod 25, a clamping seat 28 is installed on the top of the fixed sliding block 27, clamping studs 29 are screwed on the clamping seat 28, a clamping plate 30 is rotatably installed between the two clamping studs 29, guide sliding rods 31 are slidingly installed on the front and rear sides of the clamping seat 28, the guide sliding rods 31 are fixedly connected with the outer wall of the clamping plate 30, a second rotating disc 32 is installed on the end of the clamping stud 29 away from the clamping plate 30, a plurality of dust suction grooves are formed in the top of the workbench 1, dust suction boxes 33 are installed on the bottom of the workbench 1, and are in communication with the dust suction grooves, a collection drawer is arranged in the dust suction box 33, and the bottom of the collection drawer is a filter screen, the input end of a dust suction pipe 35 is in communication with the inside of the clamping sliding groove, the output end of the dust suction pipe 35 is in communication with the inside of the dust suction box 33, the bottom of the two dust suction boxes 33 is communicated with an air duct 34, and an air extractor 36 is installed in the middle of the air duct 34;
[0025] The flywheel cover is placed between the two clamping plates 30, the clamping motor 26 is started to drive the rotating rod 25 to rotate to make the fixed sliding block 27 move in the clamping sliding groove, thereby driving the clamping seat 28 to move on the top of the workbench 1, the approximate range clamped by the clamping plates 30 is adjusted, then according to the shape of the flywheel cover, the second rotating disc 32 is rotated to make the clamping studs 29 move on the clamping seat 28, the distance between the clamping plates 30 and the clamping seat 28 is adjusted, the two clamping plates 30 clamp the flywheel cover, when the clamping plates 30 move, the guide sliding rod 31 is driven to slide on the clamping seat 28, stability is ensured and clamping effect is improved, the electric telescopic rod 13 is started to drive the moving cross seat 12 to move up and down, thereby adjusting the polishing height, the applicable range is improved, when the moving cross seat 12 moves, the T-shaped limiting sliding rod 14 is driven to slide on the moving seat 9, thereby limiting and guiding the moving cross seat 12, the structural strength is improved, stability is ensured, the air extractor 36 is started to perform air extraction on the two dust collection boxes 33 through the air duct 34, negative pressure is generated in the dust collection boxes 33, the dust generated during polishing falls on the surface of the workbench 1 and then enters the dust collection boxes 33 through the dust collection groove, meanwhile, the dust suction pipe 35 can suck the dust in the clamping sliding groove and fall into the collection drawer, and the dust is blocked by the filter screen, and the collection drawer can be cleaned regularly.
[0026] As Figures 1 to 6 shown, the flywheel cover is placed between the two clamping plates 30, the clamping motor 26 is started to drive the rotating rod 25 to rotate to make the fixed sliding block 27 move in the clamping sliding groove, thereby driving the clamping seat 28 to move on the top of the workbench 1, the approximate range clamped by the clamping plates 30 is adjusted, then according to the shape of the flywheel cover, the second rotating disc 32 is rotated to make the clamping studs 29 move on the clamping seat 28, the distance between the clamping plates 30 and the clamping seat 28 is adjusted, the two clamping plates 30 clamp the flywheel cover, the polishing motor 21 is started to drive the rotating disc 22 to rotate, the rotating disc 22 drives the polishing head 24 to rotate through the connecting column 23, the flywheel cover is polished, the servo motor drives the threaded rod 7 to rotate through the transmission 8, the moving seat 9 is driven to move in the limiting sliding groove through the threaded block 11, thereby driving the moving cross seat 12 to move left and right, the position of the moving cross seat 12 above the workbench 1 is adjusted, the electric telescopic rod 13 is started to drive the moving cross seat 12 to move up and down, thereby adjusting the polishing height, the driving motor 17 is started to drive the second threaded rod 16 to rotate, the second moving seat 18 moves forward and backward in the moving sliding groove, the front and back positions of the motor box 19 above the workbench 1 are adjusted, the air extractor 36 is started to perform air extraction on the two dust collection boxes 33 through the air duct 34, negative pressure is generated in the dust collection boxes 33, the dust generated during polishing falls on the surface of the workbench 1 and then enters the dust collection boxes 33 through the dust collection groove, meanwhile, the dust suction pipe 35 can suck the dust in the clamping sliding groove and fall into the collection drawer, and the dust is blocked by the filter screen, and the collection drawer can be cleaned regularly.
[0027] The transmission 8, the driving motor 17, the polishing motor 21, the clamping motor 26 and the air extractor 36 of the flywheel cover surface polishing device are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.
[0028] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.
Claims
1. A flywheel housing surface polishing apparatus, characterized by, The utility model provides a kind of sanding machine, including workbench (1), support (2), two vertical rods (3), top plate (4), mobile cross seat (12), left and right adjusting assembly, moving assembly, polishing assembly, fixed assembly and dust fall assembly, workbench (1) bottom fixedly connected with support (2), workbench (1) top rear side left and right ends are fixedly installed with vertical rod (3), vertical rod (3) top is connected with top plate (4), and top plate (4) is installed with left and right adjusting assembly, and left and right adjusting assembly bottom is installed with mobile cross seat (12), and mobile cross seat (12) lower part is installed with moving assembly, and moving assembly bottom output end is installed with polishing assembly, and workbench (1) top left and right ends are installed with fixed assembly, and workbench (1) bottom is installed with dust fall assembly.
2. A flywheel cover surface polishing apparatus as claimed in claim 1, wherein, Left and right adjusting assembly includes two fixed blocks (5), guide support (6), threaded rod (7), transmission (8), mobile seat (9), guide sliding block (10), threaded block (11) and lifting parts, the inside front end of top plate (4) is provided with limiting slide groove, two fixed blocks (5) are installed on the top of the top plate (4) of limiting slide groove left and right sides, guide support (6) is fixedly installed between the front end of two fixed blocks (5), threaded rod (7) is rotatably installed between the rear end of two fixed blocks (5), the right side input end of threaded rod (7) is connected with the output end of transmission (8), the input end of transmission (8) is provided with servo motor, mobile seat (9) is limitingly and slidably installed in limiting slide groove, guide sliding block (10) is fixedly connected on the upper front end of mobile seat (9), threaded block (11) is fixedly installed on the upper rear end of mobile seat (9), guide sliding block (10) is slidably installed on guide support (6), threaded block (11) is screwed on threaded rod (7), and mobile cross seat (12) is located below mobile seat (9).
3. A flywheel housing surface finishing device as claimed in claim 2, wherein, Lifting parts includes electric telescopic rod (13) and two T-shaped limiting slide rods (14), electric telescopic rod (13) is fixedly installed in the middle of mobile seat (9), the bottom telescopic end of electric telescopic rod (13) is fixedly connected with the top of mobile cross seat (12), T-shaped limiting slide rod (14) is limitingly and slidably installed on the left and right ends of mobile seat (9), and the bottom of T-shaped limiting slide rod (14) is connected with the top end of mobile cross seat (12).
4. A flywheel housing surface finishing device as claimed in claim 1 wherein, Moving assembly includes second threaded rod (16), drive motor (17), second mobile seat (18), motor box (19) and two hanging slide seats (20), and the lower part of mobile cross seat (12) is provided with moving slide groove, second threaded rod (16) is rotatably installed in moving slide groove, the rear side input end of second threaded rod (16) is connected with the output end of drive motor (17), and the bottom of mobile cross seat (12) is provided with hanging slide groove about moving slide groove left and right symmetry, second mobile seat (18) is slidably installed in moving slide groove, and the middle of second mobile seat (18) is screwed on the outer wall of second threaded rod (16), motor box (19) is connected on the bottom of second mobile seat (18), and motor box (19) top left and right ends are fixedly connected with hanging slide seat (20), and hanging slide seat (20) is slidably installed in hanging slide groove.
5. A flywheel housing surface finishing device as claimed in claim 4, wherein, The polishing assembly comprises a polishing motor (21), a rotating disc (22), a connecting column (23) and a polishing head (24), the polishing motor (21) is installed inside the motor box (19), the output end of the polishing motor (21) is provided with the rotating disc (22) through the bottom of the motor box (19), a guide rotating ring is installed above the rotating disc (22), a hanging rotating groove matched with the guide rotating ring is formed in the bottom of the motor box (19), the guide rotating ring is rotatably installed in the hanging rotating groove, the connecting column (23) is concentrically installed at the bottom of the rotating disc (22), a reinforcing rib is arranged between the connecting column (23) and the bottom of the rotating disc (22), a plug-in groove is formed in the bottom of the connecting column (23), and the polishing head (24) is plugged into the plug-in groove and connected through bolts.
6. A flywheel housing surface finishing device as claimed in claim 1, wherein, The fixing assembly comprises a rotating rod (25), a clamping motor (26), two fixing sliding blocks (27), two clamping seats (28), two clamping studs (29), two clamping plates (30), two groups of guide sliding rods (31) and two second rotating discs (32), the top of the workbench (1) is provided with a clamping sliding groove, the rotating rod (25) is rotatably installed in the clamping sliding groove, the left and right sides of the rotating rod (25) are symmetrically provided with threaded grooves, the left input end of the rotating rod (25) is connected with the output end of the clamping motor (26), the rotating rod (25) is installed on the left side wall of the workbench (1), the two fixing sliding blocks (27) are symmetrically and slidably installed in the clamping sliding groove, and the fixing sliding blocks (27) are screwed in the threaded grooves of the rotating rod (25), the clamping seats (28) are installed at the top of the fixing sliding blocks (27), the clamping studs (29) are screwed on the clamping seats (28), the clamping plates (30) are rotatably installed between the two clamping studs (29), the guide sliding rods (31) are limitingly and slidably installed on the front and rear sides of the clamping seats (28), the guide sliding rods (31) are fixedly connected with the outer walls of the clamping plates (30), and the second rotating discs (32) are installed at the ends, away from the clamping plates (30), of the clamping studs (29).
7. A flywheel housing surface finishing device as claimed in claim 6 wherein, The dust falling assembly comprises two dust suction boxes (33), an air duct (34), a dust suction pipe (35) and an air extractor (36), a plurality of dust suction grooves are formed in the top of the workbench (1), the dust suction boxes (33) are installed on the bottom of the workbench (1) and communicate with the dust suction grooves, a collection drawer is arranged in the dust suction box (33) and the bottom of the collection drawer is provided with a filter screen, the input end of the dust suction pipe (35) communicates with the inside of the clamping sliding groove, the output end of the dust suction pipe (35) communicates with the inside of the dust suction box (33), the air duct (34) is communicated with the bottoms of the two dust suction boxes (33), and the air extractor (36) is installed in the middle of the air duct (34).