JPH0721515B2 - Vehicle armature inspection device - Google Patents

Description

The present invention relates to a vehicle armature inspection device.

(Prior Art and Problems) In the case of an electric train or the like, the armature of the motor is inspected every predetermined traveling distance for safety. In this inspection, a pair of inspection terminals are sequentially contacted with each commutator of the armature commutator removed from the vehicle, and a copper loss test is performed on the commutator or coil by detecting the resistance value, or by applying a voltage to the coil. Have found a short circuit in.

However, in such an inspection, conventionally, both ends of an armature removed from a vehicle are rotatably supported by a bearing machine, and an inspector rotates the armature to bring the terminals into contact with the commutator commutator. Since the commutator of the commutator is arranged close to each other with a narrow width, there is a problem that the inspection is missed in the visual inspection.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an inspection device for an armature for a vehicle that can easily and accurately inspect the armature for a vehicle.

Another object of the present invention is to provide a vehicle armature inspection device capable of inspecting vehicle armatures having various lengths.

(Means for Solving Problems) In order to achieve such an object, the present invention provides an electric characteristic of a vehicle armature in which a columnar commutator is coaxially arranged in a central portion of an armature shaft. A vehicle armature inspection device for inspecting while rotating the armature shaft, comprising: a mounting mechanism that rotatably supports the vehicle armature; and a vehicle armature supported by the mounting mechanism. An inspection machine for measuring electrical characteristics is provided, and the mounting mechanism includes a cylindrical rotating jig that is rotationally integrally fitted to both ends of an armature shaft, and a pair of bearings that bear the rotating jig. A body, a gap varying mechanism that varies the gap between the bearings, and a rotary drive mechanism that rotationally drives the armature shaft bearing the bearing by the rotary jig. Contacts the outer peripheral surface of the commutator and It is characterized in that it is provided with an inspecting section for taking out the signal and a supporting section for supporting the inspecting section so as to be movable along three axial directions including the axial direction of the armature shaft.

(Operation) According to the above configuration, in the mounting mechanism, the rotation driving mechanism automatically rotates the armature during the inspection.

Further, the distance between the two bearings can be adjusted appropriately by the variable distance mechanism, and the armature having an appropriate length can be inspected.

Further, the diameter and the arrangement position of the commutator may differ depending on the armature, but since the inspection unit is supported by the support unit so as to be movable at arbitrary positions in the three axial directions, the diameter and the arrangement position of the commutator may be different. The inspection unit can follow the change in position.

By the way, when the diameter of the commutator changes, the peripheral speed of the commutator changes during rotation of the armature, so there is the inconvenience that the inspection of the electrical characteristics becomes uncertain. However, in this inspection device, the armature shaft is not directly supported by the mounting mechanism, but is supported by the rotary jig, and the rotary drive mechanism rotationally drives the armature shaft by the rotary jig. is doing. Therefore, if the diameter of the commutator is large, a rotating jig with a small diameter is fitted, while if the diameter of the commutator is small,
By fitting a rotating jig having a large diameter, the commutator peripheral speed of each armature can be kept constant.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a vehicle armature inspection device, FIG. 2 is a plan view, and FIG. 3 is a side view.

In these drawings, reference numeral 1 is a vehicle armature mounting mechanism, and 2 is an inspection machine, each of which constitutes an inspection apparatus.

The mounting mechanism 1 is composed of a pair of bearings 3a and 3b and a rail portion 4 as a continuously variable spacing mechanism at the lower part of the bearing body 3a, and the bearing body 3b is movably provided on the rail portion 4. ing. A roller not shown in the figure is provided below the bearing body 3b, and by rotating this roller, the bearing body 3b can be lightened manually without any runout on the rail portion 4 in the direction of arrow A. ing. Reference numeral 5 denotes a fixed handle, and by tightening the fixed handle 5, the bearing body 3b is fixed at a desired position on the rail portion 4. Reference numeral 60 is an auxiliary moving roller. The bearing body 3b has its center of gravity in the upper part and tends to lean outward (to the right),
At that time, the movement cannot be performed smoothly. The auxiliary moving roller 60 is provided so as to avoid this problem, and by providing the auxiliary moving roller 60, the bearing 3b
Is always stable and lightly movable. Reference numeral 61 is a drive motor speed variable switch.

Two rollers 7 are provided on the upper portions of both bearings 3a, 3b, and an armature 8 is received between the rollers 7.

A fixing member 6 having a pair of fixing holes 6a as shown in FIGS. 4 (A), (B) and (C) is provided on the outer side of the bearing body 3a. It is a handle for fixing the lock pin 33 inserted from the 2 side.
The fixing hole 6a is formed so as to become thinner from the inlet side toward the back, and the tapered lock pin 33 can be easily inserted.

A rotary drive mechanism 9 for rotationally driving the roller 7 on one side (the one on the left side in FIG. 3) is provided outside the bearing body 3b.

As shown in FIG. 5, the rotary drive mechanism 9 includes a drive motor 11, a rotary member 13 into which a drive shaft 12 of the drive motor 11 is fitted and fixed in a box 9a, and an electromagnetic mechanism attached to the rotary member 13. The clutch plate 14 operated by the clutch plate 14, the interlocking plate 15 that is attached to and detached from the clutch plate 14, the rotating member 16 to which the interlocking plate 15 is attached, and the rotating shaft 17 whose one end is fitted into the rotating member 16.
And the first gear 18 into which the other end of the rotary shaft 17 is fitted and fixed.
And the shaft 19 of the roller 7 is fitted and fixed in the first
A second gear 20 that meshes with the gear 18 is provided and configured. Each of 21 is a bearing block that supports the shaft 19 of the roller 7. The clutch plate 14 is used for the drive motor 11
When the switch is turned on, it operates to transmit power to the interlocking plate 15. In the case where the drive motor 11 fails due to the clutch mechanism thus provided, the armature 8 is manually operated as in the conventional case. It is designed to be rotatable.

The armature 8 is configured such that a coil 23 is wound around an armature shaft 22 and an annular commutator 25 is provided on one end side of the coil 23. The rotary jigs 27 are attached to both ends, and the rollers 7 are received by the rotary jigs 27.

As shown in FIG. 6, the rotating jig 27 has a small diameter 27a when the diameter of the commutator 25 of the armature 8 to be inspected is large, and a small diameter 27a when the diameter of the commutator 25 is small. Use 27b with a large diameter. This is because the diameter of the commutator 25 is large because it is necessary to make the contact time (inspection unit time) of the inspection terminal with each commutator of the commutator 25 in the inspection machine 2 constant in any armature 8. In the case of the armature 8, the rotation speed is increased, and in the case of the armature 8 having a small diameter of the commutator 25, the rotation speed is decreased.

The inspection machine 2 includes a main body portion 30, an operating portion 31 provided on the main body portion 30 so as to slide in the direction of arrow B, and an inspection portion 45 provided at the tip of the operating portion 31. In addition, in the present embodiment, the support portion is configured by the main body portion 30 and the operating portion 31. An upper part of the main body 30 is a control panel 32, and a pair of lock pins 33 fitted into the fixing holes 6a of the bearing body 3a are axially supported by the bearings 34 in the lower position thereof in the arrow C direction. It is provided to be movable. Lock pin 33
Is formed so that the tip side becomes thinner. Reference numeral 35 denotes a lever integrally provided with the lock pin 33 and protruding from a slide groove 36 provided on the outer surface of the main body portion 30. By operating the lever 35, the lock pin 33 is moved.
Reference numeral 37 is a handle for fixing the lock pin 33 at an appropriate position.

Further, when the armature 8 is mounted on the mounting mechanism 1, the inspection unit 2 is moved below the main body 30 and rotates on a rail 38 provided in a direction orthogonal to the arrangement direction of the armature 8. Wheels 39 are provided. 40 is a handle for moving the inspection machine 2.

Since the inspection machine 2 is provided on the rail 38 as described above,
At the time of inspection, it is positioned with respect to the corresponding mounting mechanism 1,
Moreover, it is necessary to be stably fixed, and the fixing is performed by inserting and fixing the lock pins 33 into the fixing holes 6a of the bearing portion 3a. Inspection machine 2 as above
By fixing, vibration during the inspection is suppressed,
This also avoids inspection errors. The overall arrangement of the inspection device and the rail 38 will be described later.

The operating unit 31 includes a slide unit 42 positioned so as to slide on the main body unit 30, and a box unit 43 connected to an end of the slide unit 42. A cylinder 44 is provided. Box part 43
An operating body (not shown) that moves up and down by the operation of the air cylinder 44 and an inspection drive unit 50 attached to the lower end thereof are provided in the inside, and downward from the inspection drive unit 50, along with the drive operation of the drive unit 50. An inspection unit 45 that extends to bring the pair of inspection terminals into contact with the commutator of the commutator 25 extends. As described above, the inspection unit 45 and the drive unit 50 are configured to be moved by the operation of the air cylinder 44 and positioned in the arrow D direction.

The position of the commutator 25 on the armature shaft 22 differs depending on the type of the armature 8 to be inspected, and the diameter of the commutator 25 also differs. It is possible to move in both directions of arrows B and D.

FIG. 7 is a simplified diagram showing the arrangement configuration of the above-mentioned inspection device in the inspection place.

In this experimental example, 10 mounting mechanisms 1 are arranged side by side, and rails are arranged along the respective side positions of the mounting mechanisms 1.
38 are provided. Train formation is 6,8,10,1
The number is 2,14 as appropriate, but in any formation, one armature for the main motor is added to the armature of the main motor, and one armature for the compressor is provided. It is configured to inspect 10 armatures, one for the main motor, one for the generator, and one for the compressor. When inspecting
All the armatures 8 are removed from the vehicle, mounted on the respective mounting mechanisms 1, and the inspection machine 2 is moved on the rails 38 to sequentially perform inspections. The inspection of each of the armatures 8 is performed by sequentially contacting the commutator of the commutator 25 with a pair of terminals of the inspection unit 45 when the armature 8 is rotated once by the rotation drive mechanism 9 and applying an inspection current. If there is an abnormality, it is displayed on the display unit of the control panel 32. As described above, the inspection is performed not only on the armature 8 of the main motor but also on the armatures 8 for the generator and the compressor, and the respective armatures 8 have different shapes. When the armature 8 is attached, the position of the bearing body 3b is appropriately adjusted and the rotary jig 27 having a corresponding diameter is attached, and the arrow directions B and D of the inspection unit 45 in the inspection machine 2 are attached prior to the inspection. The protrusion distance at is adjusted.

The mounting mechanism 1 is used as a work table except during inspection, and is used for burr removal of the undercut groove of the armature 8 and chamfering paint finishing work.

(Effect of the invention) Therefore, according to the present invention, by the rotation drive mechanism,
The armature is automatically rotated at the time of inspection in the mounting mechanism, and the distance between the two bearings of the mounting mechanism can be adjusted appropriately by the variable spacing mechanism. The inspection is now easier and more accurate.

Further, since the inspection unit is supported by the support unit so as to be movable in arbitrary positions in the three-axis directions, the inspection unit can be made to follow changes in the diameter and arrangement position of the commutator, and can be used for different types of armatures. I was able to respond reliably. Furthermore, if the diameter of the commutator changes, the peripheral speed of the commutator changes during rotation of the armature, which makes it inconvenient to inspect the electrical characteristics. Instead of supporting it, it is supported via a rotating jig,
A rotary drive mechanism rotationally drives the armature shaft via a rotary jig. Therefore, if the diameter of the commutator is large, a rotating jig with a small diameter is fitted, while if the diameter of the commutator is small, a rotating jig with a large diameter is fitted, so that the commutator of each armature is fitted. It became possible to keep the peripheral speed constant, and it became possible to perform accurate electrical characteristic inspection even with commutators having different diameters. For the above reasons, a highly versatile inspection device could be realized.

[Brief description of drawings]

1 to 7 relate to an embodiment of the present invention, FIG. 1 is a front view of a vehicle armature inspection device, and FIG. 2 is a plan view of the same.
3 is a side view of the same, FIG. 4 (A) is a plan view of a main part of the bearing on the inspection machine side, FIG. 4 (B) is a front view of the main part, and FIG. 4 (C) is a side view of the main part. 5 and 5 are cross-sectional views of the main part of the rotary drive mechanism, FIG. 6 is a view for explaining the bearing structure of the rotary jig, and FIG. 7 is a layout explanatory view of the inspection device. 1 ... Mounting mechanism, 2 ... Inspection machine, 3a, 3b ... Bearing, 4 ... Rail part (variable spacing mechanism), 9 ... Rotation drive mechanism.

Claims (1)

[Claims] 1. A vehicle armature inspection device for inspecting the electrical characteristics of a vehicle armature in which a cylindrical commutator is coaxially arranged at the center of an armature shaft while rotating the armature shaft. There is provided a mounting mechanism that rotatably supports the vehicle armature, and an inspection machine that measures the electrical characteristics of the vehicle armature supported by the mounting mechanism, wherein the mounting mechanism is an electric machine. Cylindrical rotary jigs fitted to both ends of the child shaft so as to rotate integrally with each other, a pair of bearings for bearing the rotary jigs, a spacing variable mechanism for varying the spacing between the bearings, and the bearings. A rotation drive mechanism that rotationally drives the armature shaft supported by the rotating jig via the rotating jig, and the inspection machine abuts on an outer peripheral surface of the commutator to extract an electric signal; The inspection unit includes three parts including the axial direction of the armature shaft. Inspection device for a vehicle armature, characterized in that it comprises a support portion for movably supported along the direction.