Tooling for press mounting of drive cover and bearing, and press mounting process thereof
A technology for cover bearings and driving devices, which is applied in metal processing, manufacturing tools, metal processing equipment, etc., can solve the problems of large motor friction, poor coordination between the output shaft of the reducer and the bearing, and high manufacturing costs, achieving high assembly accuracy and improving The effect of equipment utilization and equipment cost saving
Active Publication Date: 2012-07-04
成都华川电装有限责任公司
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Problems solved by technology
The direct pressure method will make the inner diameter of the bearing smaller, resulting in a poor fit between the output shaft of the reducer and the bearing, resulting in large motor friction, high current, and rapid motor heating, resulting in poor performance of the motor, but this type of tooling has a simple structure
The expansion-compression method can meet higher assembly accuracy, and it is the most used assembly method at present, but the tooling structure of the expansion-compression method is more complicated than that of the direct-pressure method, and every time a new product is developed, a set of expansion-compression method tooling will be manufactured , high manufacturing cost and long time
Method used
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Embodiment
[0040] Embodiment: The lower end of the support column 2 is a disc-shaped cylinder with a small thickness and a large bottom area. There are three bolt holes on the edge of the cylinder, which are connected to the base 1 by bolts, so that the connection between the support column 2 and the base 1 is relatively stable. The disk-shaped cylinder of the support column 2 is a slender cylinder, and a sliding sleeve 3 is set on it. The inner hole of the sliding sleeve 3 is slidably matched with the support column 2. push structure. The elastic pushing structure includes a spring 5, a guide rod 6 connected to the sliding sleeve, the upper end of the spring 5 is limited by the support arm 11 of the guide rod 6, the bottom end is supported by the upper surface of the support column 2, and the support column 2 There are guide rod telescopic holes 7 on the cylinder at the lower end and the base 1, and there are 3 groups of springs 5 and guide rods 6. A positioning seat 4 is arranged on...
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The invention discloses a tooling for press mounting of a drive cover and a bearing, and a press mounting process thereof. The tooling for the press mounting of the drive cover and the bearing comprises a support column installed on a base, a sliding sleeve sleeved on the support column and a detachable positioning seat, wherein the lower end face of the positioning seat is in fit with the upper end face of the sliding sleeve, and the upper end face of the positioning seat is in fit with the positioning face of the drive cover. A central spindle coincided with the the axis of the support column is arranged in the support column. The outer diameter of the central spindle top is larger than the inner diameter of the bearing by 0.005mm-0.02mm. The bottom of the central spindle is provided with a lower broaching. The press mounting process comprises the following steps: a, selecting the positioning seat matching with the drive cover and installing the positioning seat; b, pressing the top end of a core shaft into the inner hole of the bearing; c, putting the drive cover on the positioning seat to enable the drive cover to match with the positioning face of the positioning seat; d, pressing the drive cover down to press the bearing into the bearing hole on the drive cover; and e, separating the top end of the core shaft from the inner hole of the bearing. The invention is suitable for the press mounting of drive covers and bearings.
Description
technical field [0001] The invention relates to the field of manufacturing starter motors for vehicles, in particular to a tooling for press-fitting starter drive cover bearings Background technique [0002] The vehicle starter motor is mainly composed of a stator, a rotor, a brush holder, a drive cover assembly, and a brush cover assembly. For the motor to work normally, the driving cover assembly of the motor must ensure that the stator, rotor, one-way device, and electromagnetic switch assembled on it cooperate well. The quality of the motor drive cover is very important, and it is the core part that undertakes the assembly of the motor and the engine, as well as the positional relationship of the motor electromagnetic switch, stator, and rotor assembly. The press-fitting of drive cover bearings plays a vital role, and its assembly quality is related to the performance and life of the motor. [0003] There are two main methods of press-fitting the drive cover bearing: 1...
Claims
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IPC IPC(8): B23P19/02
Inventor 林倩如刘洋孙杰峰唐兴伟
Owner 成都华川电装有限责任公司