CN209930101U

CN209930101U - Starting motor rotating shaft and rotor core assembling tool

Info

Publication number: CN209930101U
Application number: CN201921034075.6U
Authority: CN
Inventors: 缪扬; 丁长春; 王�华; 王立建; 张文光; 王文传
Original assignee: Yancheng Jiejing Machinery Manufacturing Co Ltd
Current assignee: Yancheng Jiejing Machinery Manufacturing Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-01-10
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a starting motor rotating shaft and rotor core assembling tool, which comprises a workbench, a support, a pressure head, a lower die, an upper die and a cylinder, wherein the support is arranged on the workbench, the pressure head is arranged on the upper part of the support, the cylinder is arranged in a cylinder seat, the cylinder seat is arranged on the workbench, the lower die is composed of an upper round platform body and a lower round platform body, the upper part in the lower die is provided with a cylindrical space matched with the outer surface of the rotor core, the inner lower part in the lower die is provided with a step hole, the step hole comprises an upper hole and a lower hole, the upper hole is matched with the rotating shaft, the aperture of the lower hole is smaller than that of the upper hole, the lower hole is matched with a piston rod of the cylinder, the lower die is provided with a guide plate, the lower part of the guide plate is uniformly distributed on the inner peripheral wall of the upper cylindrical space in the lower die, the bottom surface of the, the upper die is of a cylindrical structure and is provided with a long blind hole, and guide grooves are uniformly distributed on the outer surface of the upper die.

Description

Starting motor rotating shaft and rotor core assembling tool

Technical Field

The utility model relates to a starter motor part assembly fixture especially relates to a starter motor pivot and rotor core assembly fixture.

Background

The existing starting motor comprises a rotor, wherein the rotor mainly comprises a rotating shaft, a rotor iron core, a rotor winding and a commutator. The rotor core is installed on the rotating shaft. Since the rotating shaft transmits torque, the connection between the rotor core and the rotating shaft must be reliable. At present, the rotor core is assembled on the rotating shaft in an interference manner through manual work. Due to manual operation, the workload is large, the efficiency is low, and the connection quality is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a starter motor pivot and rotor core assembly fixture is provided, this assembly fixture not only can assemble rotor core in the pivot reliably, and labour saving and time saving is efficient moreover.

In order to solve the technical problem, the utility model relates to a starting motor rotating shaft and rotor core assembly fixture, which comprises a workbench, a support, a pressure head, a lower die, an upper die and a cylinder, wherein the support is arranged on the workbench, the pressure head is arranged on the upper part of the support, the cylinder is arranged in a cylinder seat, the cylinder seat is arranged on the workbench, the lower die is composed of an upper circular platform body and a lower circular platform body, the upper part in the lower die is provided with a cylindrical space matched with the outer surface of the rotor core, the inner lower part of the lower die is provided with a step hole, the step hole comprises an upper hole and a lower hole, the upper hole is matched with the rotating shaft, the aperture of the lower hole is smaller than that of the upper hole, the lower hole is matched with a piston rod of the cylinder, the lower die is provided with a guide plate, the lower part of the guide plate is uniformly distributed on the inner peripheral wall of the upper cylindrical space in the lower die, the upper die is of a cylindrical structure and is provided with a long blind hole, and guide grooves are uniformly distributed on the outer surface of the upper die.

The pressure head comprises an upper cylinder and a pressure seat, the upper cylinder is arranged on the upper portion of the support, and the pressure seat is arranged on a piston rod of the upper cylinder.

The guide plates arranged on the lower die are four, and the guide grooves arranged on the outer surface of the upper die are four.

And a reinforcing plate is arranged on the guide plate.

When using above-mentioned starter motor pivot and rotor core assembly fixture, at first with rotor core suit on a tip of pivot, then the cover is equipped with the sheath on the both ends of pivot, wear the dress in the upper portion hole of lower mould with the one end of pivot after that, the lower mould deflector is located the groove on rotor core surface, the long blind hole suit of going up the mould is on the other end of pivot, the guide way of going up the mould is located the lower mould deflector, at this moment, the pressure head moves down and pushes down the mould, it pushes down rotor core to the middle part of pivot to go up the mould like this, make rotor core interference fit assemble in the pivot, the cylinder piston rod stretches out, make the pivot shift up, take off the mould, take out pivot and rotor core connector. Therefore, the assembling tool can reliably assemble the rotor core on the rotating shaft, is labor-saving, time-saving and high in efficiency, and can ensure the connection quality of the rotating shaft and the rotor core.

Drawings

Fig. 1 is a schematic perspective view of a tool for assembling a rotating shaft and a rotor core of a starter motor.

Detailed Description

In fig. 1, the utility model discloses a starter motor pivot and rotor core assembly fixture contains workstation 12, support 13, pressure head 3, lower mould 14, goes up mould 2 and cylinder 15. A holder 13 is provided on the table 12, and the ram 3 is provided on the upper portion of the holder 13. A cylinder 15 is provided in the cylinder block 11. The cylinder block 11 is located on a table 12. The lower die 14 is composed of an upper circular truncated cone body and a lower circular truncated cone body, a cylindrical space 7 is arranged at the upper part in the lower die, and the cylindrical space 7 is matched with the outer surface of the rotor core. The lower part of the lower die 14 is provided with a step hole, the step hole comprises an upper hole 8 and a lower hole 9, the upper hole 8 is matched with the rotating shaft, the aperture of the lower hole 9 is smaller than that of the upper hole, and the lower hole 9 is matched with a piston rod 10 of a cylinder 15. The lower die 14 is provided with a guide plate 6, and the lower part of the guide plate 6 is uniformly distributed on the inner peripheral wall of the upper cylindrical space 7 in the lower die 14. The bottom surface of the lower round body of the lower mold 14 is provided on the cylinder block 11. The piston post 10 of the air cylinder 15 is located in the lower bore 9 of the lower die 14. Go up mould 2 and be the cylindricality structure, go up mould 2 and be equipped with long blind hole 1, go up the equipartition on the surface of mould 2 and be equipped with the guide way.

In order to simplify the structure, the pressure head 3 comprises an upper cylinder and a pressure seat, the upper cylinder is arranged on the upper part of the bracket 13, and the pressure seat is arranged on a piston rod of the upper cylinder.

In order to facilitate manufacturing and improve stability, four guide plates 6 are arranged on the lower die 14, and four guide grooves are arranged on the outer surface of the upper die 2.

In order to improve the strength of the guide plate 6, a reinforcing plate is arranged on the guide plate 6.

When the assembly tool for the rotating shaft and the rotor core of the starting motor is used, firstly, the rotor core 5 is sleeved on one end part of the rotating shaft 4, then, the two end parts of the rotating shaft 4 are sleeved with the protective sleeves, then, one end of the rotating shaft 4 is penetrated in the upper hole 8 of the lower die 14, the guide plate 6 of the lower die 14 is positioned in the groove on the surface of the rotor core 5, the long blind hole 1 of the upper die 2 is sleeved on the other end of the rotating shaft 4, and the guide groove of the upper die 2 is positioned on the guide plate 6 of the lower die. At this time, the pressing head 3 moves downwards to press the upper die 2, so that the upper die 2 presses the rotor core 5 downwards to the middle of the rotating shaft 4, and the rotor core 5 is assembled on the rotating shaft 4 in an interference fit mode, that is, the rotor core 5 is assembled on the rotating shaft 4 in an interference fit mode in an extrusion mode. The piston rod 10 of the cylinder 15 extends out to push against the lower end of the rotating shaft 4, so that the rotating shaft 4 moves upwards, the upper die 1 is taken off, and the connecting body of the rotating shaft 4 and the rotor core 5 is taken out. It can be seen from the above that, the assembly tool not only can reliably assemble the rotor core 5 on the rotating shaft 4, but also is labor-saving, time-saving and high in efficiency, and can ensure the connection quality of the rotating shaft 4 and the rotor core 5.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a starter motor pivot and rotor core assembly fixture which characterized in that: comprises a workbench, a bracket, a pressure head, a lower die, an upper die and a cylinder, wherein the bracket is arranged on the workbench, the pressure head is arranged at the upper part of the bracket, the cylinder is arranged in a cylinder seat, the cylinder seat is positioned on the workbench, the lower die consists of an upper circular truncated cone body and a lower circular truncated cone body, a cylindrical space is arranged at the upper part in the lower die, the cylinder space is matched with the outer surface of the rotor core, a step hole is arranged at the inner lower part of the lower die, the step hole comprises an upper hole and a lower hole, the upper hole is matched with the rotating shaft, the aperture of the lower hole is smaller than that of the upper hole, the lower hole is matched with a piston rod of the cylinder, a guide plate is arranged on the lower die, the lower part of the guide plate is uniformly distributed on the inner peripheral wall of the upper cylinder space in the lower die, the bottom surface of a lower round body of the lower die is arranged on a cylinder seat, a piston column of the cylinder is positioned in the lower hole of, the upper die is of a cylindrical structure and is provided with a long blind hole, and guide grooves are uniformly distributed on the outer surface of the upper die.

2. The assembly tool for the rotating shaft and the rotor core of the starting motor according to claim 1, characterized in that: the pressure head comprises an upper cylinder and a pressure seat, the upper cylinder is arranged on the upper portion of the support, and the pressure seat is arranged on a piston rod of the upper cylinder.

3. The assembly tool for the rotating shaft and the rotor core of the starting motor according to claim 1, characterized in that: the guide plates arranged on the lower die are four, and the guide grooves arranged on the outer surface of the upper die are four.

4. The assembly tool for the rotating shaft and the rotor core of the starting motor according to claim 1, characterized in that: and a reinforcing plate is arranged on the guide plate.