阅读说明：本技术 一种用于电机定转子铁芯级进模具上的传动机构 (Transmission mechanism for motor stator and rotor iron core progressive die ) 是由 谢梅 于 2021-09-26 设计创作，主要内容包括：本发明涉及一种用于电机定转子铁芯级进模具上的传动机构,包括支撑套、第一伞齿轮、第二伞齿轮、伺服电机和用于电机定转子铁芯叠片的回转套,支撑套固定在机架上,回转套放置在支撑套内,且支撑套的上端面与回转套的上端面之间安装有第一平面推力轴承,支撑套的下底面与第一伞齿轮的上端面之间安装有第二平面推力轴承,支撑套的内侧面与回转套的外侧面之间安装有向心滚针轴承；回转套的底部安装在第一伞齿轮上并通过螺栓固定,第一伞齿轮与第二伞齿轮相啮合,且第二伞齿轮通过联轴器与伺服电机的驱动轴相连接；本发明具有空间紧凑、稳定性好、使用寿命长且传动精度高的优点。(The invention relates to a transmission mechanism for a motor stator and rotor core progressive die, which comprises a support sleeve, a first bevel gear, a second bevel gear, a servo motor and a rotary sleeve for motor stator and rotor core lamination, wherein the support sleeve is fixed on a rack; the bottom of the rotary sleeve is arranged on a first bevel gear and fixed through a bolt, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is connected with a driving shaft of a servo motor through a coupler; the invention has the advantages of compact space, good stability, long service life and high transmission precision.)

1. The utility model provides a drive mechanism that is used for motor stator and rotor core to upgrade mould, includes support cover (4), first bevel gear (2), second bevel gear (3), servo motor (1) and rotation cover (5) that are used for motor stator and rotor core lamination, its characterized in that: the supporting sleeve (4) is fixed on a rack (6), the rotary sleeve (5) is placed in the supporting sleeve (4), a first plane thrust bearing (7) is installed between the upper end face of the supporting sleeve (4) and the upper end face of the rotary sleeve (5), a second plane thrust bearing (8) is installed between the lower bottom face of the supporting sleeve (4) and the upper end face of the first bevel gear (2), and a centripetal needle roller bearing (9) is installed between the inner side face of the supporting sleeve (4) and the outer side face of the rotary sleeve (5); the bottom of the rotary sleeve (5) is arranged on the first bevel gear (2) and fixed through a bolt, the first bevel gear (2) is meshed with the second bevel gear (3), and the second bevel gear (3) is connected with a driving shaft of the servo motor (1) through a coupler (10).

2. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 1, wherein: the upper end face of the first bevel gear (2) is provided with a groove (21), the bottom of the rotary sleeve (5) is embedded in the groove (21), the outer ring of the lower end face of the first bevel gear (2) is provided with a tooth face, the inner ring is provided with a penetrating slot (22) for a bolt to penetrate through, and the tooth face arranged on the lower end face of the first bevel gear (2) is meshed with the tooth face arranged on the left end face of the second bevel gear (3).

3. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 2, wherein: the right end face of the second bevel gear (3) is provided with a stepped shaft (31), the stepped shaft (31) is divided into two sections, one section of shaft body is connected with a driving shaft of the servo motor (1) through a coupler (10), the other section of shaft body is sleeved with a bearing (11), and the bearing (11) is fixed on the rack (6).

4. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 1, wherein: the outer wall of the support sleeve (4) is provided with a circle of support edge (41), the support sleeve (4) is fixed on the rack (6) through the support edge (41), and the height of the support edge (41) is half of the height of the support sleeve (4).

5. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 1, wherein: an annular supporting plate (12) is fixed on the lower bottom surface of the supporting sleeve (4) through bolts, the annular supporting plate (12) is fixed on the rack (6), and the second plane thrust bearing (8) is located between the annular supporting plate (12) and the upper end surface of the first bevel gear (2).

6. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 5, wherein: the outer wall of the rotary sleeve (5) is provided with a circle of sleeve edge (51), and the first plane thrust bearing (7) is positioned between the sleeve edge (51) and the upper end face of the support sleeve (4).

7. The transmission mechanism for motor stator-rotor core progressive dies according to claim 5 or 6, wherein: the lateral surface of gyration cover (5) is the ladder face, and its ladder angle (51) are located on the end angle of ring support board (12), the medial surface of supporting cover (4) is equipped with round spacing groove (42), install entad bearing (9) in spacing groove (42), and respectively with the lateral surface and ring support board (12) inconsistent of gyration cover (5).

8. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 1, wherein: the servo motor (1) is positioned on the radial side of the support sleeve (4) and is used for controlling the rotary sleeve (5) to rotate 180 degrees for a period of movement.

9. The transmission mechanism for use on a progressive die of a stator core and a rotor core of an electric motor according to claim 1, wherein: a blanking female die (13) is arranged above the rotary sleeve (5), a locking ring (14) is coaxially distributed on the blanking female die (13), and the locking ring (14) is arranged on the inner wall of the rotary sleeve (5).

Technical Field

The invention belongs to the technical field of mechanical transmission mechanisms, and particularly relates to a transmission mechanism for a motor stator and rotor iron core progressive die.

Background

The motor stator and rotor iron core is composed of punching sheets, and how to ensure the lamination quality and the production efficiency of the punching sheets is particularly important; at present, punching sheets are required to be laminated after being blanked to a blanking female die after being blanked from a die, and the punching sheets between adjacent punching sheets are required to be distributed in a 180-degree staggered manner in the stacking process, in the prior art, workers generally use tools to take out the punching sheets from the blanking female die and manually laminate the punching sheets, but the laminating efficiency is not high and the safety is poor, so that a mode that the blanking female die rotates 180 degrees in the laminating process is developed to replace manual laminating, the rotation of the blanking female die is transmitted by adopting the transmission between a conventional synchronizing wheel and a synchronizing belt, the problems of low rotation precision and short service life and easy breakage of the synchronizing belt are solved, the low rotation precision means that the synchronizing belt is a rubber product, and the large rotation precision and the small rotation easily cause the tooth pitch precision error of the synchronizing belt to be large and large deviation can be generated when the female die rotates 180 degrees in the intermittent transmission process, therefore, the rejection rate of the formed motor stator and rotor lamination after lamination is irregular in thickness and inner shape is high; meanwhile, the defect of low stamping stability of the progressive die due to large longitudinal occupied space exists.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a transmission mechanism for a motor stator and rotor iron core progressive die, which has the advantages of compact space, good stability and high transmission precision.

The transmission mechanism for the motor stator and rotor core progressive die comprises a support sleeve, a first bevel gear, a second bevel gear, a servo motor and a rotary sleeve for motor stator and rotor core laminations, wherein the support sleeve is fixed on a rack, the rotary sleeve is placed in the support sleeve, a first plane thrust bearing is arranged between the upper end surface of the support sleeve and the upper end surface of the rotary sleeve, a second plane thrust bearing is arranged between the lower bottom surface of the support sleeve and the upper end surface of the first bevel gear, and a radial needle bearing is arranged between the inner side surface of the support sleeve and the outer side surface of the rotary sleeve; the bottom of the rotary sleeve is arranged on the first bevel gear and fixed through a bolt, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is connected with a driving shaft of the servo motor through a coupler.

The invention has the beneficial effects that: the transmission is controlled by the engagement between the two bevel gears and the servo motor, so that the 180-degree periodic movement of the rotary sleeve is realized, and the reliable operation between the rotary sleeve and the support sleeve is ensured by the plane thrust bearing and the radial needle bearing; the transmission mechanism has the advantages of compact space, good stability, long service life and high transmission precision.

Preferably, the upper end face of the first bevel gear is provided with a groove, the bottom of the rotary sleeve is embedded in the groove, the outer ring of the lower end face of the first bevel gear is provided with a tooth surface, the inner ring is provided with an inserting groove for inserting a bolt, and the tooth surface arranged on the lower end face of the first bevel gear is meshed with the tooth surface arranged on the left end face of the second bevel gear; through the design of the structure, the stability of the rotary sleeve and the first bevel gear after installation is better, and radial displacement and axial movement cannot be generated.

Preferably, a stepped shaft is arranged on the right end face of the second bevel gear, the stepped shaft is divided into two sections, one section of shaft body is connected with a driving shaft of the servo motor through a coupling, the other section of shaft body is sleeved with a bearing, and the bearing is fixed on the rack; the stepped shaft is arranged, so that the connection between the second bevel gear and the servo motor is facilitated, the coaxial rotation of the second bevel gear with the bearing is facilitated, and the stability and the accuracy in the axial process are improved.

Preferably, a circle of supporting edge is arranged on the outer wall of the supporting sleeve, the supporting sleeve is fixed on the rack through the supporting edge, and the height of the supporting edge is half of the height of the supporting sleeve; because the supporting sleeve is the main stress point of the whole transmission mechanism in the die blanking process, the supporting edge is arranged, so that the connection between the supporting edge and the rotary sleeve and the rack is facilitated, and the axial deformation of the supporting sleeve main body after the blanking force is applied is also favorably prevented.

Preferably, an annular support plate is fixed to the lower bottom surface of the support sleeve through a bolt, the annular support plate is fixed to the rack, and the second planar thrust bearing is located between the annular support plate and the upper end surface of the first bevel gear; through setting up the annular support plate for the axial area of contact between second plane thrust bearing and the support cover is bigger, and the annular support plate is fixed in the frame simultaneously, can be with this axial impact force whole transmission to the frame on, thereby the protection second plane thrust bearing does not receive the axial impact force that comes from the support cover.

Preferably, the outer wall of the rotary sleeve is provided with a circle of sleeve edge, and the first plane thrust bearing is positioned between the sleeve edge and the upper end face of the support sleeve; therefore, impact force of blanking borne by the rotary sleeve can be transmitted to the support sleeve through the first plane thrust bearing, and the impact force is prevented from being transmitted to the first bevel gear.

Preferably, the outer side surface of the rotary sleeve is a stepped surface, the stepped angle of the rotary sleeve is positioned on the end corner of the annular support plate, the inner side surface of the support sleeve is provided with a circle of limit groove, and the centripetal needle roller bearing is installed in the limit groove and is respectively abutted against the outer side surface of the rotary sleeve and the annular support plate; therefore, the axial displacement of the radial needle bearing is limited, and the stability of the radial needle bearing in the operation process is better.

Preferably, the servo motor is positioned on the radial side of the supporting sleeve and is used for controlling the rotary sleeve to rotate 180 degrees for a periodic movement; such an arrangement makes the longitudinal space more compact and at the same time facilitates the transmission of the transmission force of the transmission.

Preferably, a blanking female die is arranged above the rotary sleeve, a locking ring is coaxially distributed with the blanking female die, and the locking ring is arranged on the inner wall of the rotary sleeve; through 180-degree rotation of the transmission mechanism, the blanking female die falls into the punching sheet in the rotary sleeve through the movement of a cycle and the matching of the locking ring, and the punching sheet is limited by the locking ring.

Drawings

Fig. 1 is a front view structure diagram of the transmission mechanism of the invention.

Fig. 2 is a schematic structural view between the first bevel gear and the second bevel gear of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

The reference numbers in the drawings are respectively: 1. a servo motor; 2. a first bevel gear; 3. a second bevel gear; 4. a support sleeve; 5. a rotary sleeve; 6. a frame; 7. a first planar thrust bearing; 8. a second planar thrust bearing; 9. a radial needle bearing; 10. a coupling; 11. a bearing; 12. an annular support plate; 13. blanking female dies; 14. a locking ring; 21. a groove; 22. inserting the slot; 31. a stepped shaft; 41. a support edge; 42. a limiting groove; 51. and (5) edge sleeving.

Detailed Description

The invention will be described in detail below with reference to the following drawings: the invention comprises a support sleeve 4, a first bevel gear 2, a second bevel gear 3, a servo motor 1 and a rotary sleeve 5 for laminating a stator core and a rotor core of the motor, wherein the support sleeve 4 is fixed on a frame 6, the rotary sleeve 5 is placed in the support sleeve 4, a first plane thrust bearing 7 is arranged between the upper end surface of the support sleeve 4 and the upper end surface of the rotary sleeve 5, a second plane thrust bearing 8 is arranged between the lower bottom surface of the support sleeve 4 and the upper end surface of the first bevel gear 2, and a centripetal needle roller bearing 9 is arranged between the inner side surface of the support sleeve 4 and the outer side surface of the rotary sleeve 5; the bottom of the rotary sleeve 5 is mounted on the center of the upper end face of the first bevel gear 2 and fixed by a bolt, the first bevel gear 2 is engaged with the second bevel gear 3, and the bevel gears are applied for the purpose of: the transmission operation is stable, bearing capacity is higher, long service life, and second bevel gear 3 is connected with the drive shaft of servo motor 1 through shaft coupling 10, can make second bevel gear 3 and servo motor 1's lateral distance adjustable like this for the space is compacter, can prevent through the shaft coupling simultaneously that the second bevel gear from bearing too big load, plays overload protection's effect.

A groove 21 is formed in the center of the upper end face of the first bevel gear 2, the bottom of the rotary sleeve 5 is embedded into the groove 21, a tooth surface is arranged on the outer ring of the lower end face of the first bevel gear 2, an inserting groove 22 for inserting a bolt is formed in the inner ring of the lower end face of the first bevel gear 2, the groove 21 of the first bevel gear 2 is fixed to the bottom of the rotary sleeve 5 through the bolt, the bolt penetrates through the inserting groove 22 and is sunk into the inserting groove, and therefore installation is more convenient and the space is more compact; the tooth surface arranged on the lower end surface of the first bevel gear 2 is meshed with the tooth surface arranged on the left end surface of the second bevel gear 3.

The right end face of the second bevel gear 3 is provided with a stepped shaft 31, the stepped shaft 31 is divided into two sections, one section of shaft body is connected with the driving shaft of the servo motor 1 through a coupling 10, the other section of shaft body is sleeved with a bearing 11, the bearing 11 is fixed on the rack 6, the diameter of the section of shaft body, connected with the driving shaft of the servo motor, of the stepped shaft 31 is smaller than that of the section of shaft body, provided with the bearing 11, because the section of shaft body provided with the bearing 11 mainly plays a role in supporting the second bevel gear 3, the section of shaft body connected with the driving shaft of the servo motor mainly plays a role in connection, and the forces borne by the two sections of shaft body are different greatly.

The outer wall of the support sleeve 4 is integrally formed with a ring of support rim 41, the support rim 41 is located at the uppermost part of the support sleeve 4, the support sleeve 4 is fixed on the frame 6 by the support rim 41, and the height of the support rim 41 is half of the height of the support sleeve 4, and the width of the support rim 41 is generally 1/2 to 2/3 of the wall thickness of the support sleeve 4 according to actual needs, so as to ensure that the first bevel gear 2 is impacted by the axial deformation of the support sleeve body after being subjected to the blanking force.

An annular support plate 12 is fixed on the lower bottom surface of the support sleeve 4 through bolts, the annular support plate 12 is fixed on the frame 6, and the second plane thrust bearing 8 is positioned between the annular support plate 12 and the upper end surface of the first bevel gear 2; the outer wall of the rotary sleeve 5 is provided with a ring of sleeve edges 51, and the height of the sleeve edges 51 is slightly larger than that of the supporting edges 41, so that the blanking force from the die blanking process can be sufficiently borne; the first plane thrust bearing 7 is positioned between the sleeve edge 51 and the upper end surface of the support sleeve 4; the outer side surface of the rotary sleeve 5 is a stepped surface, the stepped angle 51 of the rotary sleeve is positioned on the end angle of the annular support plate 12, the inner side surface of the support sleeve 4 is provided with a circle of limiting groove 42, and the centripetal needle roller bearing 9 is arranged in the limiting groove 42 and is respectively abutted against the outer side surface of the rotary sleeve 5 and the annular support plate 12; the annular support plate 12 and the limit groove 42 and the outer side surface of the rotary sleeve 5 form a space for installing the radial needle bearing 9.

The servo motor 1 is positioned at the radial side of the support sleeve 4 and is used for controlling the rotary sleeve 5 to rotate 180 degrees for a period of movement; the arrangement makes the longitudinal space more compact, and is more beneficial to the transmission of the transmission force of the transmission mechanism; for example: the servo motor 1 drives the second bevel gear 3 and the first bevel gear 2, and drives the rotary sleeve 5 to rotate for 180 degrees through the 180-degree rotation of the bevel gears, so that the transmission precision is high, and the problem of rotation angle deviation is not easy to occur.

A blanking female die 13 is arranged above the rotary sleeve 5, locking rings 14 are coaxially distributed with the blanking female die 13, and the locking rings 14 are arranged on the inner wall of the rotary sleeve 5; through 180-degree rotation of the transmission mechanism, the blanking female die falls into the punching sheet in the rotary sleeve through the movement of a cycle and the matching of the locking ring, and the punching sheet is limited by the locking ring.

The present invention is not limited to the above embodiments, and any changes in the shape or material composition, or any changes in the structural design provided by the present invention, are all modifications of the present invention, and should be considered to be within the scope of the present invention.