JPS58192455A - Gap adjusting method for axial gap motor - Google Patents

Abstract

PURPOSE:To improve the productivity of a motor by adjusting the axial size from the pole surface of a stator to the surface of a bearing while feedback controlling to obtain a reference gas size value. CONSTITUTION:A measuring unit 10 which measures the axial size of a rotor 1 is composed of a surface plate 11 which is contacted with the pole surface, a measuring pin 12 which is contacted at the upper end with the contacting surface of a bearing, and a digital dial gauge 13 which is contacted with the lower end of the pin 12. The measured value of the axial size is fed from the gauge 13 to an arithmetic controller 9. The rotation of a servo motor 23 and hence the elevational movements of a press-fitted head 25 are controlled with the output of the controller 9.

Description

[Detailed Description of the Invention] Is the present invention axial science? This relates to a method for adjusting the output of an I-lip motor.

When assembling the rotor (1) and stator (4) as shown in Fig. 1 and manufacturing a Tanabata with a gap whose axial dimension is G as shown in Fig. 2, this 4'p・
The lip dimension G is the axial dimension R from the magnetic pole face (2) of the rotor (1) to the bearing contact i ta+ 1, and the magnetic pole ifi of the stator (4) (81 to the rotor at the bearing (6) (1) 5-axis □ bearing contact surface (3) Bearing surface that makes contact (7) t
It is determined by the axial direction dimension M, but in order to ensure that the f-yap dimension G is within the tolerance, in the past, after measuring each dimension R and M of the rotor and stator with a linear gauge, The rotors were classified into ranks based on the measured values, and Sakutosha combined a rotor with an Rj rank and a stator with a town rank so that the gap dimension G was within the tolerance. For this reason, not only is the work efficiency poor, but all the stators for a certain rank of rotor may be out of the corresponding rank. In this case, the tolerance of 4'p/tube dimension G is ±0.01mm
However, the above-mentioned dimension M of the stator requires an even smaller tolerance.

The present invention has been made in view of these points, and its purpose is to provide a method for easily and accurately adjusting the yappe before assembly. Here's how to adjust it.

To explain the present invention below, the present invention measures the axial dimension between the magnetic pole surface and the bearing abutment surface in the rotor, and based on this measured value and the reference 4'P knob dimension value, the magnetic pole in the stator is measured. The axial dimension between the surface and the bearing surface that the rotor bearing contact surface contacts is calculated, and then, based on this calculated value, the measured value of the axial dimension between the magnetic pole surface and the bearing surface in the stator is calculated. This relates to a method for adjusting gears and knobs in the axial direction, which is characterized by adjusting the axial position of the bearing with respect to the stator while giving feedback, and will be described in detail hereinafter. do. FIG. 8 shows an example of an apparatus for carrying out the present invention. In the figure, +101 is a measuring part for measuring the axial dimension R of the rotor +11, and the surface plate (11) is in contact with the magnetic pole face (2). ), a measuring pin (12) whose upper end is in contact with the bearing contact surface (3), and a digital tire gauge tea which is in contact with the lower end of the measuring pin 04.

The measured value of the axial dimension R from the magnetic pole surface (2) to the bearing contact surface (3) when the rotor 11) is pressed against the surface plate (1K) with a predetermined pressure using the pressing jig Q4) (rotor theta ) is sent from the Getatar tire gauge 0 barrel to the arithmetic control section (9) consisting of a microphone O':I computer. "on the other hand,
The stator (4) to be combined with this rotor (1) is set on the turnchip ILI (I@), and the magnetic pole surface (81) on the upper surface of the stator (4) and the bearing (
6) The upper bearing surface of the metal Ffi+ (7
) while measuring the axial dimension M between the metal (6
) is press-fitted into the stator (4), and the surface plate (a) placed above the receiving jig A09) and the bearing surface (7)
The measuring pin (+ instant), the lower end of which comes into contact with Forward and reverse rotation to press fit.
Ball screw shirt cow (
The press-fitting mechanism part is made up of an assembly, which is supported by an action ball bearing (not shown) and is subjected to a downward tensile spring load. Added J
3. Press-fitting that smoothly moves up and down with the crush removed (26 is the turntable cover and holding jig (
l @ through hole - metal flsl of stator (4) from shi 0
Push up the bottom surface as shown in Figure 6. 6 is a polyurethane tube that comes into contact with the lower surface of the stator (4). 9! From the magnetic pole surface (6) of the stator (4) output from the digital dial gauge C17'l to the bearing surface (1
The measured value of the axial dimension M up to ) (stator theta) is input to the arithmetic and control unit (9), and the output of the arithmetic and control unit (9) is used to rotate the servo to Tanabata, that is, press fit. The vertical movement of Shito is controlled.

Next, to explain the operation based on the flowchart shown in figure fJ4, first, standard 4? Tsubu dimension value (set of Bl,
After initial settings such as RAM and clearing of conditions are made, the measured value (rotor data) of the axial dimension R of the rotor (1) is taken in, and the reference fp knob dimension value Gl and the rotor theta, which are generated during press-fitting, are taken in. The ideal axial dimension M of the stator (4) is calculated from the predicted value of overrun (ideal axial dimension M of the stator = rotor 7 - rotor reference f1), the knob dimension value G
s ten overrun predicted value). On the other hand, if the press-in head (company) rotates the motor 1 in the forward direction (→ to raise it) and in the reverse rotation (→ to lower it), as shown in Figure 5, the rotation of the turntable θ~ and the receiving jig (I First, a high-speed rise (
1260 rpm, 2 (1, (5117 sec)), and when the rise of the press-fitting head (c) to a predetermined position is detected by a phototube (not shown), it is decelerated (I) and slowly raised (120 rpm).
±6Orpm, 2.6±1.8 mi/@1IC
). If the bearing surface (7) comes into contact with the measurement pin (1φ) due to this slow rise, the output of the digital dial gauge (17) will change from that point on, so it will slow down and rise at a slow speed (80±8Orpm, 0.6 ±0.6m/
See), and while comparing the calculated value with the measured value (stator data) of the axial dimension M from the digital dial game "i" (Iη), raise the press-fit head and check that the magnetic pole surface (6) Press the metal (5) upward into the stator (4) that is in contact with the surface plate α.Then, when the metal (6) is pressed in until the calculated value matches the stator data, , Since the measurement (I) at this time is when the pressure from the press-fit head □□□ is being applied to the metal (5), the press-fit head @ uniform is lowered at a slow speed (-80 ± 8 Orp).
m1-0.6±0.6 fl/sec, ) lμt
Lower the press-fitting head (b), remove the pressing force on the metal (6), and take in the stator data in this state. If this measurement (It) shows that the rotor (1) with the axial dimension M of the stator (4) falls within the tolerance of the reference f'p tube dimension value G-, press-fitting is performed. However, if the press-fit is insufficient, calculate the re-lift amount corrected by the insufficient press-fit of the press-fit head □□□, and then re-raise the press-fit head at a slow speed while feeding back the stator data ((2) ).As a result, if the metal (5) is press-fitted by the corrected amount, lower the press-fitting head (to) by 1μ and measure again with the pressure removed (Iv).If this is good, finish the press-fitting operation. and then press-fit the soil (c) at high speed F (-120 Or pm, -26.8 gm/sec
) to complete the series of operations.

Note that one piece of stator data and rotor data is obtained from calculation of lO measurement data to ensure accuracy. That is, first, 10 measurement data are taken in, a noise check is performed as a noise countermeasure, and regarding the IO measurement data shown in FIG. 7, the measurement data ■■ is removed. Then, as a vibration countermeasure, remove the inappropriate data ■■ measurement data, and further remove the maximum and minimum measurement data ■■ measurement data, and take the average of the remaining measurement data to obtain l data. .

As described above, in the present invention, the axial dimension from the magnetic pole surface to the bearing surface in the stator is set as the reference f' in accordance with the axial dimension from the magnetic pole surface to the bearing contact surface in a certain rotor.
? It is adjusted while controlling the feed variance so that the knob dimension value is obtained, and it is ensured that the appropriate 4? In addition to being able to obtain a sharp piece, it is not necessary for one worker to combine rotors and stators for each rank, and productivity is greatly improved.

[Brief explanation of the drawing]

1(a) and 1(b) are cross-sectional views of the rotor and stator of the C-tor according to the present invention, FIG. Figure I64 is the same as above, Figure 5 is the sir fg death.
6(a) and 6(b) are partially enlarged sectional views, and FIG. 7 is an explanatory diagram of data creation.
(1) is the rotor, (2) is the magnetic pole surface, (3) is the bearing contact surface, (4) is the stator, (6) is the bearing (metal), (6) is the magnetic pole surface, (7) is the The bearing surface is shown. Agent: Patent Attorney Ishi 1) Long 7th Procedural Amendment (Voluntary), August 23, 1982, To the Commissioner of the Japan Patent Office, Patent Application No. 74393 of 1982, Name of the Invention: Axial direction 4 Y'j Tanabata's 417tsu'''j adjustment method 3,
Relationship with the case of the person making the amendment Patent applicant Location 1048 Oaza Kadoma, Kadoma City, Osaka Name (583) Denji Matsushita [Representative of Co., Ltd. Iku Kobayashi 4, agent postal code 530 5, attached sheet with date of amendment order Corrected the application number: Japanese Patent Application No. 57-74393JPj1, "Linear gauge" in the 7th line of page 2 of the Kito specifications is corrected to "tial gauge." 2. Correct "Jjial" on page 3, line 18 of the same as "linear" to "linear". 3. Correct "Tial" in the second line of page 4 of the same page to "linear". 4. Correct "Tial, j't-r linear" on the 12th line of the box on the same page. 5. Correct ``Tial'' in the 4th line of page 5 of the same page to ``Linear''. 6. In the same page, page 6, line 9, ``Tial'' is replaced by ``Linear''. 7. Correct "Tial" in lines 11-12 of the same page to "Linear". j. Agent Patent Attorney Ishi 1) Chief 7:1)

Claims (1)

[Claims] (1) Measure the axial dimension between the magnetic pole surface of the rotor and the bearing abutment surface, and based on this measurement value and the reference - f SE1ν zu dimension value, the magnetic pole surface of the stator and the bearing of the rotor. Calculate the axial dimension between the abutting surface and the bearing surface that it abuts - Then, based on this calculated value, feed the measured value of the axial dimension between the magnetic pole surface and the bearing surface in the stator. 1. A method for adjusting the axial direction ratio P-tsubo of Tanabata, which comprises adjusting the axial position of the bearing with respect to the stator.