Motor rotor polishing device

Abstract

The utility model relates to a motor rotor polishing device. The technical problem to be solved by the utility model is to provide the motor rotor polishing device. According to the technical scheme, the rotor polishing machine comprises a bottom plate, a station rotating disc, a rotor positioning tool, a rotor polishing device, a tool driving device and a rotor upper positioning assembly, and the rotor polishing device comprises a polishing bearing plate, a polishing ejection air cylinder, a polishing driving plate assembly, a first polishing belt wheel and a second polishing belt wheel. The rotor upper positioning assembly comprises an upper fixing base, an upper positioning end plate, a bearing and an upper positioning column, the upper positioning column comprises an upper positioning column body, and an upper positioning column boss is arranged in the middle of the upper positioning column body. Compared with the prior art, the motor rotor polishing device has the advantages that the rotor upper positioning assembly is additionally arranged to be matched with the rotor positioning tool, the motor rotor can be longitudinally limited and horizontally shaken and locked during polishing, the problem that the motor rotor moves up and down due to the influence of a polishing belt wheel in the polishing process is effectively solved, and the polishing accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotors, and particularly relates to a polishing device for a motor rotor. Background Art

[0002] As shown in Figure 12 and 13 a motor rotor includes a rotating main shaft 71 and a commutator 72 sleeved outside the rotating main shaft 71. The rotating main shaft 71 includes a shaft body 74, an inner shaft sleeve 75 and a shaft boss 76. The upper end of the shaft body 74 is higher than the inner shaft sleeve 75. Axial positioning holes 77 are arranged at intervals around an arc on the shaft boss 76. Due to the high precision requirements for the motor rotor, generally, the outer wall of the commutator 72 of the motor rotor needs to be polished. In order to improve the polishing efficiency and make the polishing suitable for large-scale production, a semi-automatic polishing device is now introduced for polishing. It is found in the use process that the polishing accuracy of the outer wall of the commutator 72 is general. After analysis, it is found that the reason is that the motor rotor is not firmly fixed during polishing and there is no longitudinal limit for the motor rotor, resulting in the problem that the motor rotor is prone to move up and down under the influence of the polishing pulley during the polishing process, thereby affecting the accuracy after polishing. Therefore, the existing polishing device for the motor rotor is improved and optimized. Content of the Utility Model

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a polishing device for a motor rotor.

[0004] Technical solution adopted by the polishing device for the motor rotor of the utility model: It includes a bottom plate, a station rotating disk arranged on the bottom plate, a rotor positioning tooling and a rotor polishing device arranged on the station rotating disk. It is characterized in that it further includes a tooling driving device and a rotor upper positioning component arranged on the rotor polishing device. The rotor polishing device includes a polishing receiving plate, a polishing ejecting cylinder fixed below the polishing receiving plate, a polishing driving plate assembly movably connected to the polishing ejecting cylinder, a first polishing pulley and a second polishing pulley arranged at the front end of the polishing driving plate assembly and used for polishing the outer wall of the commutator. The rotor upper positioning component includes an upper fixing seat fixed on the polishing driving plate assembly and placed between the first polishing pulley and the second polishing pulley, an upper positioning end plate, a bearing and an upper positioning column. The upper positioning column includes an upper positioning column main body. An upper positioning column boss is arranged in the middle of the upper positioning column main body. An upper positioning column sleeve body for docking with the inner sleeve of the shaft is arranged at the bottom of the upper positioning column main body. An upper positioning column limiting groove for shaft limiting is arranged in the upper positioning column sleeve body. An upper fixing seat docking groove is arranged in the upper fixing seat. An upper fixing seat through hole for the upper positioning column main body to pass through is arranged in the fixing seat docking groove. The bearing is sleeved on the upper positioning column main body and placed in the upper fixing seat docking groove. The rotor positioning tooling is used for receiving the motor rotor. The tooling driving device is used to lift the motor rotor placed on the rotor positioning tooling to dock with the rotor upper positioning component, and drive the motor rotor to rotate so that the first polishing pulley and the second polishing pulley polish the outer wall of the commutator.

[0005] The rotor positioning tooling includes a tooling seat body, a seat body lower cover plate, a main bearing, a rotating lifting member and a rotor lower positioning column. The rotor lower positioning column includes a lower positioning column main body. Lower limiting columns corresponding to the shaft positioning holes are arranged at intervals around the arc at the upper end of the lower positioning column main body. The rotating lifting member includes a lifting member column body and a lifting member boss. A lifting member limiting hole for fixing the lower positioning column main body is arranged in the lifting member column body. The tooling seat body includes a seat body receiving portion placed above the station rotating disk and a seat body positioning portion penetrating through the station rotating disk. A tooling seat body limiting groove is arranged in the tooling seat body. A tooling seat body through hole for the rotating lifting member to pass through is arranged in the tooling seat body limiting groove. The main bearing is sleeved on the lifting member column body and placed in the tooling seat body limiting groove.

[0006] A lifting docking column and a rotation limiting block arranged around the arc are arranged at the lower end of the lifting member column body. The height of the lifting docking column is greater than the height of the rotation limiting block. The tooling driving device includes a lifting cylinder, a rotating motor connected to the lifting cylinder, and a rotating lifting seat connected to the output end of the rotating motor. A lifting seat limiting hole for docking with the lifting docking column and rotation locking notches arranged at intervals around the arc and corresponding to the rotation limiting block are arranged in the rotating lifting seat.

[0007] The rotor polishing device also includes a seat limit assembly arranged on the polishing drive plate assembly, the seat limit assembly includes an arc limit head, a screw rod connected to the arc limit head at one end and connected to the polishing drive plate assembly at the other end, and a first spring sleeved on the screw rod, and an arc recess for limiting and locking the arc limit head is provided on the seat supporting part.

[0008] The rotor polishing device also includes a polishing belt pulley device, a polishing wheel guide rail arranged on the polishing receiving plate, a polishing wheel slider arranged on the polishing wheel guide rail, and a polishing belt receiving wheel arranged on the polishing wheel slider. The polishing belt pulley device is used to drive the polishing belt to rotate and transmit on the polishing belt receiving wheel, the first polishing belt pulley and the second polishing belt pulley.

[0009] The advantages of the motor rotor polishing device of the utility model are: adding a rotor positioning component to cooperate with the rotor positioning tooling can play a role in longitudinal limitation and horizontal shaking locking of the motor rotor during polishing. The motor rotor is firmly fixed, and the motor rotor is effectively prevented from being affected by the polishing pulley during the polishing process and moving up and down, thereby improving the accuracy of polishing; the seat limiting component effectively prevents the displacement of the rotor positioning tooling, thereby further enhancing the protection and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0011] Figure 1 It is a structural schematic diagram of the motor rotor polishing device of the utility model;

[0012] Figure 2 It is an exploded view of the positioning assembly on the rotor of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the upper positioning column of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the upper fixing seat of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the rotor polishing device of the utility model;

[0016] Figure 6 This is an exploded view of the rotor positioning tooling of the utility model;

[0017] Figure 7 This is a schematic diagram of the structure of the rotor lower positioning column of the utility model;

[0018] Figure 8 It is a structural schematic diagram of the rotary lifting member of the utility model;

[0019] Figure 9 is a schematic structural view of the tooling seat body of the present utility model;

[0020] Figure 10 is a schematic structural view of the seat body limiting component of the present utility model;

[0021] Figure 11 is a schematic structural view of the tooling driving device of the present utility model;

[0022] Figure 12 is a schematic structural view of the motor rotor of the present utility model;

[0023] Figure 13 is a schematic structural view of the rotating main shaft of the present utility model. Detailed implementation manners

[0024] Such as Figures 1-11As shown in the figure, the motor rotor polishing device involved in the present utility model includes a bottom plate 1, a station rotating disk 2 provided on the bottom plate 1, a rotor positioning tooling 3, a rotor polishing device 4, a tooling driving device 5, and a rotor upper positioning component 7 provided on the rotor polishing device 4. The rotor polishing device 4 includes a polishing receiving plate 10, a polishing ejecting cylinder 11 fixed below the polishing receiving plate 10, a polishing driving plate assembly 12 movably connected to the polishing ejecting cylinder 11, a first polishing pulley 13 and a second polishing pulley 14 provided at the front end of the polishing driving plate assembly 12 and used for polishing the outer wall of the commutator 72. The rotor upper positioning component 7 includes an upper fixing seat 16 fixed on the polishing driving plate assembly 12 and placed between the first polishing pulley 13 and the second polishing pulley 14, an upper positioning end plate 17, a bearing 18, and an upper positioning column 19. The upper positioning column 19 includes an upper positioning column main body 21. An upper positioning column boss 22 is provided in the middle of the upper positioning column main body 21. An upper positioning column sleeve body 23 for docking with the shaft inner sleeve 75 is provided at the bottom of the upper positioning column main body 21. An upper positioning column limiting groove 24 for limiting the shaft body 74 is provided in the upper positioning column sleeve body 23. An upper fixing seat docking groove 26 is provided in the upper fixing seat 16. An upper fixing seat through hole 27 for the upper positioning column main body 21 to pass through is provided in the fixing seat docking groove 26. The bearing 18 is sleeved on the upper positioning column main body 21 and placed in the upper fixing seat docking groove 26. The rotor positioning tooling 3 is used for receiving the motor rotor. The tooling driving device 5 is used to lift the motor rotor placed on the rotor positioning tooling 3 and dock it with the rotor upper positioning component 7, and drive the motor rotor to rotate so that the first polishing pulley 13 and the second polishing pulley 14 polish the outer wall of the commutator 72. The upper positioning column 19 of the rotor upper positioning component 7 can longitudinally limit the motor rotor without affecting the rotation of the motor rotor with the tooling driving device 5 during polishing. The motor rotor is firmly fixed, effectively preventing the problem that the motor rotor moves up and down under the influence of the polishing pulley during the polishing process, and improving the accuracy during polishing.

[0025] The rotor positioning tool 3 includes a tool seat 30, a seat lower cover plate 31, a main bearing 34, a rotating lifting member 32 and a rotor lower positioning column 33. The rotor lower positioning column 33 includes a lower positioning column body 35. The upper end of the lower positioning column body 35 is provided with lower limit columns 36 corresponding to the shaft positioning hole 77 around the arc interval. The rotating lifting member 32 includes a lifting member column 37 and a lifting member boss 38. The lifting member column 37 is provided with a lifting member for fixing the lower positioning column body 35. The tooling seat body 30 includes a seat receiving portion 40 placed above the workstation rotating disk 2 and a seat positioning portion 41 passed through the workstation rotating disk 2. A tooling seat body limiting groove 42 is provided in the tooling seat body 30. A tooling seat body through hole 43 for the rotating lifting member 32 to pass through is provided in the tooling seat body limiting groove 42. The main bearing 34 is sleeved on the lifting member column 37 and placed in the tooling seat body limiting groove 42. The motor rotor is accurately and reliably positioned.

[0026] The lower end of the lifting member column 37 is provided with a lifting docking column 44 and a rotating limit block 45 arranged around an arc. The height of the lifting docking column 44 is greater than the height of the rotating limit block 45. The tooling driving device 5 includes a lifting cylinder 46, a rotating motor 47 connected to the lifting cylinder 46, and a rotating lifting seat 48 connected to the output end of the rotating motor 47. The rotating lifting seat 48 is provided with a lifting seat limit hole 49 docking with the lifting docking column 44 and a rotating locking recess 50 arranged at intervals around an arc and corresponding to the rotating limit block 45. The tooling driving device 5 realizes the lifting and rotation functions of the upper positioning column 19, so that during the polishing process, the entire surface of the commutator is effectively polished.

[0027] The rotor polishing device 4 also includes a seat limit assembly 15 arranged on the polishing driving plate assembly 12, the seat limit assembly 15 includes an arc limit head 52, a screw 53 with one end connected to the arc limit head 52 and the other end connected to the polishing driving plate assembly 12, and a first spring 54 sleeved on the screw 53. The seat receiving portion 40 is provided with an arc recess 55 for limiting and locking the arc limit head 52. The seat limit assembly 15 effectively prevents the displacement of the rotor positioning tooling, further enhancing the protection and safety.

[0028] The rotor polishing device 4 also includes a polishing pulley device 60, a polishing wheel guide rail 61 arranged on the polishing receiving plate 10, a polishing wheel slider 62 arranged on the polishing wheel guide rail 61, and a polishing belt receiving wheel 63 arranged on the polishing wheel slider 62. The polishing pulley device 60 is used to drive the polishing belt to rotate and transmit on the polishing belt receiving wheel 63, the first polishing pulley 13 and the second polishing pulley 14.

[0029] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included within the protection scope of the present utility model.

Claims

1. A motor rotor polishing device, comprising a base plate (1), a station rotating disk (2) arranged on the base plate (1), a rotor positioning tool (3) arranged on the station rotating disk (2), and a rotor polishing device (4), characterized in that: It also includes a tooling driving device (5) and a rotor upper positioning assembly (7) arranged on the rotor polishing device (4), wherein the rotor polishing device (4) includes a polishing receiving plate (10), a polishing ejection cylinder (11) fixed below the polishing receiving plate (10), a polishing driving plate assembly (12) movably connected to the polishing ejection cylinder (11), a first polishing belt wheel (13) and a second polishing belt wheel (14) arranged at the front end of the polishing driving plate assembly (12) and used for polishing the outer wall of the commutator (72), and the rotor upper positioning assembly (7) includes an upper fixed seat (16) fixed on the polishing driving plate assembly (12) and placed between the first polishing belt wheel (13) and the second polishing belt wheel (14), an upper positioning end plate (17), a bearing (18) and an upper positioning column (19), wherein the upper positioning column (19) includes an upper positioning column body (21), and an upper positioning column boss is provided in the middle of the upper positioning column body (21). (22), an upper positioning column sleeve (23) docking with the shaft inner sleeve (75) is provided at the bottom of the upper positioning column body (21), an upper positioning column limiting groove (24) for limiting the shaft body (74) is provided in the upper positioning column sleeve (23), an upper fixing seat docking groove (26) is provided in the upper fixing seat docking groove (26), an upper fixing seat through hole (27) for the upper positioning column body (21) to pass through is provided in the upper fixing seat docking groove (26), the bearing (18) is sleeved on the upper positioning column body (21) and placed in the upper fixing seat docking groove (26), the rotor positioning tool (3) is used to receive the motor rotor, the tool driving device (5) is used to lift the motor rotor placed on the rotor positioning tool (3) and dock it with the rotor upper positioning assembly (7), and drive the motor rotor to rotate so that the first polishing pulley (13) and the second polishing pulley (14) polish the outer wall of the commutator (72).

2. The motor rotor polishing device according to claim 1, characterized in that: The rotor positioning tool (3) comprises a tool seat (30), a seat lower cover plate (31), a main bearing (34), a rotating lifting member (32) and a rotor lower positioning column (33); the rotor lower positioning column (33) comprises a lower positioning column body (35); lower limit columns (36) corresponding to the shaft positioning holes (77) are arranged at intervals around a circular arc at the upper end of the lower positioning column body (35); the rotating lifting member (32) comprises a lifting member column body (37) and a lifting member boss (38); a lifting member column body (37) is provided with a lower limit column (36) for the lower positioning column body (3 5) a fixed lifting member limiting hole (39), the tool seat body (30) comprises a seat body receiving portion (40) placed above the work station rotating disk (2) and a seat body positioning portion (41) penetrated on the work station rotating disk (2), a tool seat body limiting groove (42) is provided in the tool seat body (30), a tool seat body through hole (43) for the rotating lifting member (32) to penetrate is provided in the tool seat body limiting groove (42), and the main bearing (34) is sleeved on the lifting member column (37) and placed in the tool seat body limiting groove (42).

3. The motor rotor polishing device according to claim 2, characterized in that: A lifting docking column (44) and a rotation limit block (45) arranged around a circular arc are provided at the lower end of the lifting member column (37); the height of the lifting docking column (44) is greater than the height of the rotation limit block (45); the tooling driving device (5) comprises a lifting cylinder (46), a rotation motor (47) connected to the lifting cylinder (46), and a rotation lifting seat (48) connected to the output end of the rotation motor (47); a lifting seat limit hole (49) docking with the lifting docking column (44) and rotation locking recesses (50) arranged at intervals around a circular arc and corresponding to the rotation limit block (45) are provided in the rotation lifting seat (48).

4. The motor rotor polishing device according to claim 2, characterized in that: The rotor polishing device (4) further comprises a seat body limiting assembly (15) arranged on the polishing driving plate assembly (12), the seat body limiting assembly (15) comprising an arc limiting head (52), a screw rod (53) connected to the arc limiting head (52) at one end and connected to the polishing driving plate assembly (12) at the other end, and a first spring (54) sleeved on the screw rod (53), and the seat body receiving portion (40) is provided with an arc recess (55) for limiting and locking the arc limiting head (52).

5. The motor rotor polishing device according to claim 1, characterized in that: The rotor polishing device (4) further comprises a polishing belt wheel device (60), a polishing wheel guide rail (61) arranged on the polishing receiving plate (10), a polishing wheel slider (62) arranged on the polishing wheel guide rail (61), and a polishing belt receiving wheel (63) arranged on the polishing wheel slider (62); the polishing belt wheel device (60) is used to drive the polishing belt to rotate and transmit on the polishing belt receiving wheel (63), the first polishing belt wheel (13) and the second polishing belt wheel (14).

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