Motor shaft surface polishing equipment

Abstract

The application discloses a motor shaft surface grinding and polishing equipment and relates to the technical field of motor production. The equipment comprises a base, a mounting groove is arranged on the base, a bottom plate table and a rotating motor one are sequentially and fixedly arranged in the mounting groove from top to bottom, a circular workbench is fixedly arranged on the top surface of the bottom plate table, a suction fixing table assembly is embedded in the circular workbench, the suction fixing table assembly comprises a polygonal fixing table embedded at the middle position of the circular workbench, a telescopic air cylinder is embedded in the polygonal fixing table, a pressing plate assembly is arranged on the piston rod of the telescopic air cylinder, a plurality of placing grooves are uniformly distributed on the polygonal fixing table in the circumferential direction, a polygonal fixing column is embedded in the polygonal fixing table, a magnet piece corresponding to each placing groove in position is fixedly arranged on each side of the polygonal fixing column, and a plurality of grinding and polishing devices corresponding to the placing grooves in position are further arranged outside the base. The application has the advantages of improving work efficiency and being beneficial to keeping product quality consistency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor production, in particular to a motor shaft surface grinding and polishing equipment. BACKGROUND

[0002] Grinding and polishing refers to the use of mechanical action to reduce the surface roughness of the workpiece to obtain a bright and smooth surface processing method, which is a modification processing of the workpiece surface by using polishing tools and abrasive particles. At present, the motor shaft needs to be ground and polished during production in order to improve the wear resistance, fatigue strength and corrosion resistance of the motor shaft. Most of them are ground and polished by manual or mechanical one by one, which not only wastes time and effort, but also greatly increases the labor cost, and also easily causes low motor shaft qualification rate and poor product quality consistency. SUMMARY

[0003] In view of the above technical deficiencies, the technical problem to be solved by the present application is to provide a motor shaft surface grinding and polishing equipment which improves the work efficiency and is beneficial to maintaining the product quality consistency.

[0004] To solve the above technical problems, the present application provides a motor shaft surface grinding and polishing equipment, which comprises a base, the base is provided with a mounting groove, a bottom plate table and a rotating motor one are fixedly arranged in the mounting groove from top to bottom, a circular workbench is fixedly arranged on the top surface of the bottom plate table, a suction fixing table assembly is embedded in the circular workbench, the suction fixing table assembly comprises a polygonal fixing table embedded in the middle position of the circular workbench, a telescopic cylinder is embedded in the polygonal fixing table, a pressing plate assembly is arranged on the piston rod of the telescopic cylinder, a plurality of placing grooves are uniformly distributed on the polygonal fixing table in the circumferential direction, the placing grooves are semicylindrical recesses with open top, the pressing plate assembly is in contact with the top opening of the placing groove, the number of placing grooves is the same as the number of edges of the polygonal fixing table, a polygonal fixing column is embedded in the polygonal fixing table, a magnet piece corresponding to the position of the placing groove is fixedly arranged on each edge of the polygonal fixing column, and the magnet pieces are respectively located in the corresponding placing grooves, the output shaft of the rotating motor one penetrates the bottom plate table, the circular workbench, the polygonal fixing table and the polygonal fixing column in sequence, and the output shaft of the rotating motor one is rotatably connected with the bottom plate table, the output shaft of the rotating motor one is fixedly connected with the circular workbench and the polygonal fixing table, and a plurality of grinding and polishing devices corresponding to the placing grooves are arranged on the outside of the base.

[0005] Preferably, the pressing plate assembly comprises an upper pressing plate and a lower pressing plate fixed in sequence from top to bottom on the piston rod of the telescopic air cylinder, and both the upper pressing plate and the lower pressing plate are movably sleeved outside the polygonal fixed table, the side of the lower pressing plate facing the telescopic air cylinder is provided with a plurality of clamping grooves corresponding to the placing grooves, the cross sections of the placing grooves and the clamping grooves are both semicircular structures, and the diameter of the placing grooves is the same as that of the clamping grooves, so that after the motor shaft is placed in the placing grooves, the telescopic air cylinder is started to drive the upper pressing plate and the lower pressing plate to move towards the direction of the placing grooves, and the motor shaft can be positioned and limited through the clamping grooves on the lower pressing plate and the placing grooves, which is beneficial to improve the position fixing during polishing of the motor shaft.

[0006] Preferably, the bottom is provided with a circular ring-shaped mounting seat outside, the polishing device comprises a plurality of adjusting frame assemblies provided on the circular ring-shaped mounting seat and corresponding to the placing grooves, the adjusting frame assembly is provided with a rotating motor two, the output shaft of the rotating motor two is provided with a polishing cylinder assembly, the polishing cylinder assembly comprises a baffle fixedly arranged on the output shaft of the rotating motor two, the side of the baffle away from the rotating motor two is fixedly provided with a semicircular cylinder, the two ends of the opening of the semicircular cylinder are provided with T-shaped sliding grooves along the length direction, the opening of the semicircular cylinder is slidably provided with a circular cylinder, the outer peripheral wall of the circular cylinder is provided with two T-shaped sliding rods matched with the T-shaped sliding grooves, and the two T-shaped sliding rods are slidably arranged in the corresponding T-shaped sliding grooves, the placing grooves, the output shaft of the rotating motor two, the semicircular cylinder and the circular cylinder are coaxial, the inner peripheral wall of the semicircular cylinder and the inner peripheral wall of the circular cylinder are both provided with polishing plates, the semicircular cylinder or the circular cylinder in the polishing device can be sleeved outside the outer circular cylinder of the motor shaft to slide in the T-shaped sliding grooves through the T-shaped sliding rods, the position of the semicircular cylinder or the circular cylinder during use can be adjusted, and different polishing effects of the motor shaft can be realized.

[0007] Preferably, the inside of the circular ring-shaped mounting seat is provided with a main motor, the output shaft of the main motor is provided with a face gear, the face gear is movably sleeved outside the bottom plate table, the adjusting frame assembly comprises a driven gear engaged with the face gear, a lead screw is fixedly and penetratively arranged on the driven gear, a lead screw nut forming a screw pair with the lead screw is sleeved outside the lead screw, the rotating motor two is arranged on the lead screw nut, a plurality of nut seats corresponding to the lead screw nuts are uniformly distributed on the circular ring-shaped mounting seat in the circumferential direction, and the lead screw nuts are slidably arranged in the corresponding nut seats, respectively, the main motor drives the face gear to rotate, so that the lead screw can be driven to rotate through the driven gear, the position of the nut seat is moved, so that the semicircular cylinder or the circular cylinder can be sleeved outside the motor shaft for polishing operation, or after the polishing operation is completed, the semicircular cylinder or the circular cylinder is removed from the outside of the motor shaft.

[0008] Preferably, the rotating motor two is connected with the screw nut through a connecting frame, the connecting frame comprises left and right support columns arranged in parallel and spaced apart on the screw nut, a motor base is movably arranged between the left and right support columns, the rotating motor two is fixedly embedded in the motor base, outer threaded rods are arranged on opposite sides of the motor base, one end of each outer threaded rod away from the motor base movably penetrates the left or right support column, and a locking nut is threadedly connected with the end of each outer threaded rod away from the motor base, so that the position of the motor base can be adjusted between the left and right support columns, thereby achieving the effect of adjusting the position of the rotating motor two, and facilitating replacement of the polishing and polishing cylinder assembly on the output shaft of the rotating motor two after the polishing and polishing operation is completed.

[0009] Preferably, the length of the circular cylinder is equal to or less than half the length of the semicircular cylinder, so that when the semicircular cylinder is needed for polishing and polishing, the circular cylinder can be moved to one end of the semicircular cylinder close to the rotating motor two, avoiding interference between the circular cylinder and the semicircular cylinder.

[0010] Preferably, two lead screws are movably arranged through the baffle, the two lead screws movably penetrate the two T-shaped sliding grooves, and the ends of the lead screws away from the baffle are threadedly connected with the circular cylinder, so that after the circular cylinder is slid to a corresponding position in the semicircular cylinder, the circular cylinder can be positioned through the lead screws.

[0011] The beneficial effects of the present application are as follows: 1. The adsorption fixing table assembly is arranged, so that the motor shaft can realize water flow feeding, and the motor shaft can be easily unloaded after polishing and polishing; meanwhile, a plurality of polishing and polishing devices corresponding to the placing grooves are arranged, so that a plurality of motor shafts can be processed at the same time, improving the work efficiency and being beneficial to maintaining the consistency of product quality.

[0012] 2. The motor shaft is positioned by the clamping groove on the pressing plate and the placing groove, and is fixed by the magnet pieces on the polygonal fixing column, which is beneficial to improving the convenience of placing and taking the motor shaft before and after polishing and polishing, thereby improving the work efficiency.

[0013] 3. The circular cylinder and the semicircular cylinder can be switched for use, which is convenient for achieving different polishing and polishing effects of the motor shaft and realizing diversified production of products. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 A structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0016] Figure 2 An exploded structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0017] Figure 3 A grinding and polishing device structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0018] Figure 4 A polygonal fixing table structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0019] Figure 5 A pressing plate assembly structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0020] Figure 6 A face gear and adjusting frame assembly position relationship schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0021] Figure 7 A connecting frame structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0022] Figure 8 A grinding and polishing cylinder assembly structural schematic diagram of a motor shaft surface grinding and polishing equipment provided by the embodiment of the present application.

[0023] BRIEF DESCRIPTION OF THE DRAWINGS: 1, base; 11, mounting groove; 12, bottom plate table; 13, rotating motor one; 14, circular ring mounting seat; 2, circular workbench; 21, telescopic air cylinder; 22, pressing plate assembly; 221, upper pressing plate; 222, lower pressing plate; 223, clamping groove; 23, placing groove; 3, adsorbing fixing table assembly; 31, polygonal fixing table; 311, polygonal fixing column; 32, magnet piece; 4, grinding and polishing device; 41, adjusting frame assembly; 411, main motor; 412, face gear; 413, driven gear; 414, lead screw; 415, lead screw nut; 416, nut seat; 42, rotating motor two; 43, grinding and polishing cylinder assembly; 431, baffle; 432, semicircular cylinder body; 433, T-shaped sliding groove; 434, circular cylinder body; 435, T-shaped sliding rod; 5, connecting frame; 51, left support column; 52, right support column; 53, motor seat; 54, external thread rod; 55, locking nut; 6, motor shaft. DETAILED DESCRIPTION

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: As Figures 1 to 5 As shown, this invention provides a motor shaft surface grinding and polishing device, including a base 1, on which an installation groove 11 is provided. A base plate 12 and a rotating motor 13 are fixedly arranged sequentially from top to bottom within the installation groove 11. A circular worktable 2 is fixedly arranged on the top surface of the base plate 12. An adsorption fixing platform assembly 3 is embedded within the circular worktable 2. The adsorption fixing platform assembly 3 includes a polygonal fixing platform 31 embedded in the middle of the circular worktable 2. A telescopic cylinder 21 is embedded within the polygonal fixing platform 31. A pressure plate assembly 22 is provided on the piston rod of the telescopic cylinder 21. Multiple placement grooves 23 are evenly distributed circumferentially on the polygonal fixing platform 31. Each placement groove 23 is a semi-cylindrical groove with an open top. The pressure plate assembly 22 contacts the top opening of the placement groove 23. The number of placement grooves 23 is the same as the number of sides of the polygonal fixing platform 31. A polygonal fixing post 311 is embedded within the polygonal fixing platform 31. Each side of the polygonal fixing post 311 is fixedly provided with a position corresponding to the placement groove 23. Corresponding magnet pieces 32 are located in corresponding placement slots 23. The output shaft of the rotating motor 13 passes through the base plate 12, the circular worktable 2, the polygonal fixed platform 31, and the polygonal fixed column 311 in sequence. The output shaft of the rotating motor 13 is rotatably connected to the base plate 12, and is fixedly connected to the circular worktable 2 and the polygonal fixed platform 31. The outside of the base 1 is also provided with multiple polishing and grinding tools that correspond one-to-one with the placement slots 23. The light device 4; the pressure plate assembly 22 includes an upper pressure plate 221 and a lower pressure plate 222 that are fixedly mounted on the piston rod of the telescopic cylinder 21 from top to bottom. Both the upper pressure plate 221 and the lower pressure plate 222 are movably sleeved on the outside of the polygonal fixed platform 31. The side of the lower pressure plate 222 facing the telescopic cylinder 21 is provided with a plurality of slots 223 that correspond one-to-one with the placement slots 23. The cross-sections of the placement slots 23 and the slots 223 are both semi-circular structures, and the diameter of the placement slots 23 is the same as the diameter of the slots 223.

[0026] When the polishing work of the motor shaft 6 is needed, first, the telescopic cylinder 21 is started to push the pressing plate assembly 22 (i.e. the upper pressing plate 221 and the lower pressing plate 222) to move away from the polygonal fixed table 31, and then the one end of the plurality of motor shafts 6 is inserted into each placing groove 23 along the circumferential direction of the polygonal fixed table 31 (at this time, the one end of the motor shaft 6 is located in the placing groove 23 and abuts against the magnet piece 32, and the motor shaft 6 can be adsorbed and fixed in the placing groove 23 under the action of the magnet piece 32 on the polygonal fixed column 311, and the other end of the motor shaft 6 is located outside the placing groove 23); since the output shaft of the rotating motor 13 sequentially penetrates the bottom plate table 12, the circular workbench 2, the polygonal fixed table 31 and the polygonal fixed column 311, and the output shaft of the rotating motor 13 is rotatably connected with the bottom plate table 12, and the output shaft of the rotating motor 13 is fixedly connected with the circular workbench 2 and the polygonal fixed table 31, therefore the operator can not need to move, only needs to start the rotating motor 13 to drive the circular workbench 2 and the polygonal fixed table 31 to rotate, and then the plurality of motor shafts 6 can be inserted into each placing groove 23 one by one, and the motor shaft 6 can be realized by water line feeding; then the telescopic cylinder 21 is started to push the pressing plate assembly 22 (i.e. the upper pressing plate 221 and the lower pressing plate 222) to move towards the polygonal fixed table 31, and the clamping groove 223 on the lower pressing plate 222 can be clamped on the outside of the motor shaft 6 (the outside of the one end of the motor shaft 6 in the placing groove 23) in the corresponding position, at this time, the one end of the motor shaft 6 is located between the clamping groove 223 and the placing groove 23, and then the other end of the motor shaft 6 can be polished by the polishing device 4 arranged outside the base 1 and corresponding to the placing groove 23, after the operation is completed, the motor shaft 6 is taken out, and the motor shaft 6 is turned 180 degrees and placed in the placing groove 23 according to the above operation steps, and then the polishing work can be continued.

[0027] In the embodiment one, the polishing device 4 is arranged outside the base 1 and corresponding to the placing groove 23. Figures 1 to 3 , Figures 5 to 8As shown, the outer part of the base 1 is provided with a circular mounting seat 14, the polishing device 4 comprises a plurality of adjusting frame assemblies 41 provided on the circular mounting seat 14 and corresponding to the placing grooves 23 one by one, the adjusting frame assembly 41 is provided with a rotating motor two 42, the output shaft of the rotating motor two 42 is provided with a polishing cylinder assembly 43, the polishing cylinder assembly 43 comprises a baffle 431 fixedly arranged on the output shaft of the rotating motor two 42, the side of the baffle 431 away from the rotating motor two 42 is fixedly provided with a semicircular cylinder 432, the opening ends of the semicircular cylinder 432 are provided with T-shaped sliding grooves 433 along the length direction, the opening of the semicircular cylinder 432 is slidably provided with a circular cylinder 434, the outer circumferential wall of the circular cylinder 434 is provided with two T-shaped sliding rods 435 matched with the T-shaped sliding grooves 433, and the two T-shaped sliding rods 435 are slidably arranged in the corresponding T-shaped sliding grooves 433 respectively, the placing grooves 23, the output shaft of the rotating motor two 42, the semicircular cylinder 432 and the circular cylinder 434 are coaxial, the inner circumferential wall of the semicircular cylinder 432 and the inner circumferential wall of the circular cylinder 434 are both provided with polishing plates; the inside of the circular mounting seat 14 is provided with a main motor 411, the output shaft of the main motor 411 is provided with a face gear 412, the face gear 412 is movably sleeved on the outside of the base plate table 12, the adjusting frame assembly 41 comprises a driven gear 413 engaged with the face gear 412, the driven gear 413 is fixedly and penetratively provided with a lead screw 414, the outside of the lead screw 414 is sleeved with a lead screw nut 415 forming a screw pair with the lead screw 414, the rotating motor two 42 is arranged on the lead screw nut 415, a plurality of nut seats 416 corresponding to the lead screw nut 415 are uniformly distributed on the circular mounting seat 14 in the circumferential direction, and the lead screw nut 415 is slidably arranged on the corresponding nut seat 416 respectively; the rotating motor two 42 is connected with the lead screw nut 415 through a connecting frame 5, the connecting frame 5 comprises left and right support columns 51 and 52 arranged in parallel and spaced apart on the lead screw nut 415, a motor seat 53 is movably arranged between the left and right support columns 51 and 52, the rotating motor two 42 is fixedly embedded in the motor seat 53, outer threaded rods 54 are arranged on the opposite two sides of the motor seat 53, one ends of the outer threaded rods 54 away from the motor seat 53 are movably penetrated through the left or right support column 51 or 52 respectively, and the one ends of the outer threaded rods 54 away from the motor seat 53 are all threadedly connected with locking nuts 55.

[0028] When the motor shaft 6 is installed in the placement groove 23 according to the steps in Embodiment One, the main motor 411 inside the annular mounting seat 14 drives the face gear 412 to rotate, so that the lead screw 414 is driven to rotate through the driven gear 413, and the position of the nut seat 416 is moved. When polishing work is needed for the motor shaft 6, the nut seat 416 is moved towards the motor shaft 6, that is, the opening of the semicircular cylinder 432 is inserted into the outside of the motor shaft 6 (or the circular cylinder 434 is inserted into the outside of the motor shaft 6), the rotating motor two 42 drives the semicircular cylinder 432 (or the circular cylinder 434) to rotate, and the polishing plate on the inner wall of the semicircular cylinder 432 (or the polishing plate on the inner wall of the circular cylinder 434) can be used to polish the motor shaft 6. A total switch can be provided for the plurality of rotating motor two 42 to facilitate simultaneous starting or stopping. Alternatively, an independent switch can be provided for each rotating motor two 42, so that when one or more motor shafts 6 corresponding to the rotating motor two 42 position abnormally, the processing can be stopped without affecting other normal processing motor shafts 6.

[0029] When the polishing work for the motor shaft 6 is completed, the main motor 411 inside the annular mounting seat 14 drives the face gear 412 to rotate, so that the nut seat 416 is moved away from the motor shaft 6, that is, the semicircular cylinder 432 is moved away from the motor shaft 6 (or the circular cylinder 434 is moved away from the motor shaft 6), and then the motor shaft 6 can be taken out from the placement groove 23 and turned 180 degrees for further polishing work.

[0030] The cooperation between the T-shaped slide rod 435 and the T-shaped slide groove 433 can drive the circular cylinder 434 to rotate when the semicircular cylinder 432 is located at the outside of the end of the semicircular cylinder 432 away from the rotating motor two 42 (as shown in the position of the semicircular cylinder 432 and the circular cylinder 434), that is, the rotating motor two 42 drives the semicircular cylinder 432 to rotate, and then drives the circular cylinder 434 to rotate, avoiding the slippage of the circular cylinder 434. Figure 7 Or Figure 8 The semicircular cylinder 432 and the circular cylinder 434 are located.

[0031] The setting of the baffle 431 facilitates the installation of the lead screw, that is, when the circular cylinder 434 slides in the semicircular cylinder 432, the rotation of the lead screw is coordinated, and the circular cylinder 434 after sliding is positioned in the semicircular cylinder 432.

[0032] The inner circumferential walls of the semi-circular cylinder 432 and the inner circumferential walls of the circular cylinder 434 can be equipped with polishing plates with different surface roughness, which makes it easy to switch between the semi-circular cylinder 432 and the circular cylinder 434 as needed, thus improving product versatility.

[0033] The position of the motor base 53 can also be adjusted between the left support 51 and the right support 52, thereby achieving the effect of adjusting the position of the second rotating motor 42 (that is, the grinding and polishing cylinder assembly 43 on the output shaft of the second rotating motor 42 can be rotated to a suitable position), and then after the grinding and polishing operation is completed, it is convenient to replace the grinding and polishing cylinder assembly 43 on the output shaft of the second rotating motor 42.

[0034] Example 3: Based on Example 1, as follows Figure 3 , Figures 7 to 8 As shown, the length of the circular cylinder 434 is equal to or less than half the length of the semi-circular cylinder 432; two lead screws are movably connected through the baffle 431, and the two lead screws respectively movably pass through the two T-shaped sliding grooves 433, and the end of the lead screw away from the baffle 431 is threadedly connected to the circular cylinder 434; this facilitates the movement of the circular cylinder 434 to the end of the semi-circular cylinder 432 near the rotating motor 42 when grinding and polishing is required, so that the end of the semi-circular cylinder 432 away from the rotating motor 42 can be used to grind and polish the motor shaft 6 (that is, the opening of the semi-circular cylinder 432 can be inserted into the outside of the motor shaft 6 or the circular cylinder 434 can be inserted into the outside of the motor shaft 6), while also avoiding interference between the circular cylinder 434 and the semi-circular cylinder 432; when the circular cylinder 434 slides in the semi-circular cylinder 432, it can be coordinated with the rotation of the lead screws, which facilitates the positioning of the circular cylinder 434 in the semi-circular cylinder 432 after sliding.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A motor shaft surface grinding and polishing apparatus, characterized by, The utility model provides a kind of multi-functional polishing device, including base (1), installation groove (11) is provided on base (1), bottom plate table (12) and rotating motor one (13) are sequentially fixed in installation groove (11) from top to bottom, circular workbench (2) is fixedly arranged on the top surface of bottom plate table (12), adsorption fixed platform subassembly (3) is embedded in circular workbench (2), adsorption fixed platform subassembly (3) includes polygon fixed platform (31) embedded in the middle position of circular workbench (2), telescopic cylinder (21) is embedded in polygon fixed platform (31), pressure plate subassembly (22) is provided on the piston rod of telescopic cylinder (21), polygon fixed platform (31) is uniformly distributed with multiple placing grooves (23) along the circumference, placing groove (23) is the semicylindrical recess with top opening, pressure plate subassembly (22) and the top opening of placing groove (23) are in contact, the number of placing groove (23) is same with the number of the side of polygon fixed platform (31), polygon fixed column (311) is embedded in polygon fixed platform (31), each side of polygon fixed column (311) is fixedly provided with magnet piece (32) corresponding to the position of placing groove (23), and magnet piece (32) is located in corresponding position placing groove (23) respectively, the output shaft of rotating motor one (13) sequentially penetrates bottom plate table (12), circular workbench (2), polygon fixed platform (31) and polygon fixed column (311), and the output shaft of rotating motor one (13) is rotatably connected between bottom plate table (12), the output shaft of rotating motor one (13) and circular workbench (2) and polygon fixed platform (31) are fixedly connected, the outside of base (1) is also provided with multiple polishing and polishing devices (4) corresponding to placing groove (23) one by one; The outside of base (1) is provided with circular ring mounting seat (14), polishing and polishing device (4) includes multiple adjusting frame subassembly (41) set on circular ring mounting seat (14) and corresponding to placing groove (23) one by one, rotating motor two (42) is provided on adjusting frame subassembly (41), polishing and polishing cylinder subassembly (43) is provided on the output shaft of rotating motor two (42), polishing and polishing cylinder subassembly (43) includes baffle (431) fixedly arranged on the output shaft of rotating motor two (42), half-cylinder (432) is fixedly arranged on the side of baffle (431) away from rotating motor two (42), T-shaped sliding slot (433) is arranged on the length direction of both ends of the opening of half-cylinder (432), circular cylinder (434) is slidably arranged in the opening of half-cylinder (432), two T-shaped sliding rods (435) are arranged on the outer circumferential wall of circular cylinder (434) and are matched with T-shaped sliding slot (433), and two T-shaped sliding rods (435) are slidably arranged in corresponding position T-shaped sliding slot (433) respectively, placing groove (23), the output shaft of rotating motor two (42), half-cylinder (432) and circular cylinder (434) are coaxial, polishing and polishing plate is arranged on the inner circumferential wall of half-cylinder (432) and the inner circumferential wall of circular cylinder (434).

2. A motor shaft surface grinding and polishing apparatus as claimed in claim 1, wherein The pressing plate assembly (22) comprises an upper pressing plate (221) and a lower pressing plate (222) which are sequentially fixed on the piston rod of the telescopic air cylinder (21) from top to bottom, and the upper pressing plate (221) and the lower pressing plate (222) are movably sleeved outside the polygonal fixed table (31), and the lower pressing plate (222) is provided with a plurality of clamping grooves (223) corresponding to the placing grooves (23) on the side facing the telescopic air cylinder (21), the cross sections of the placing grooves (23) and the clamping grooves (223) are semicircular structures, and the diameter of the placing grooves (23) is the same as that of the clamping grooves (223).

3. A motor shaft surface grinding and polishing apparatus as claimed in claim 1, wherein The inside of the circular mounting seat (14) is provided with a main motor (411), the output shaft of the main motor (411) is provided with a face gear (412), the face gear (412) is movably sleeved outside the bottom plate table (12), the adjusting frame assembly (41) comprises a driven gear (413) engaged with the face gear (412), a lead screw (414) is fixedly and penetratively arranged on the driven gear (413), a lead screw nut (415) forming a screw pair with the lead screw (414) is sleeved outside the lead screw (414), a second rotating motor (42) is arranged on the lead screw nut (415), a plurality of nut seats (416) corresponding to the lead screw nut (415) are uniformly distributed on the circular mounting seat (14) in the circumferential direction, and the lead screw nut (415) is slidably arranged in the corresponding nut seat (416).

4. A motor shaft surface grinding and polishing apparatus as set forth in claim 1, wherein The second rotating motor (42) is connected with the lead screw nut (415) through the connecting frame (5), the connecting frame (5) comprises left and right support columns (51 and 52) which are arranged in parallel and at intervals on the lead screw nut (415), a motor seat (53) is movably arranged between the left and right support columns (51 and 52), the second rotating motor (42) is fixedly embedded in the motor seat (53), external threaded rods (54) are arranged on opposite sides of the motor seat (53), one ends of the external threaded rods (54) away from the motor seat (53) are movably penetrated through the left or right support column (51 or 52), and the one ends of the external threaded rods (54) away from the motor seat (53) are threadedly connected with locking nuts (55).

5. A motor shaft surface grinding and polishing apparatus as claimed in claim 1, wherein, The length of the circular cylinder (434) is equal to or less than half the length of the semicircular cylinder (432).

6. A motor shaft surface grinding and polishing apparatus as claimed in claim 1, wherein, Two lead screws are movably penetrated through the two T-shaped sliding grooves (433), and one ends of the lead screws away from the baffle (431) are threadedly connected with the circular cylinder (434).

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