JPH0594746U - Gear tester to measure the center shift of the measuring gear - Google Patents

Abstract

(57) [Abstract] [Purpose] Measuring gear 11 with the shaft center deviated from the center of the boss 1.
OBD is measured with one detector. [Structure] A contactor 4B arranged in a boss 1 and held at a fulcrum 4A at a lower end and attached to an upper end rotates to come into contact with an inner diameter of a measuring gear 11, and a contactor 3A of a detector 3 has a contact point 4C. The touch lever 4 for contacting the contact lever 4 is provided, the distance from the fulcrum 4A to the contact point 4C is made equal to the distance from the contact point 4C to the contact 4B, and the contact 3A of the detector 3 is extended to contact the contact point 4C of the touch lever 4. Contact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a gear tester that fixes the position of a measurement gear and measures the OBD of the measurement gear by measuring the longitudinal movement distance of the axis of a parent gear that meshes with the measurement gear and rotates.

[0002]

[Prior Art]

 Next, the configuration of the gear testing machine according to the prior art will be described with reference to FIG. In FIG. 4, 1 is a boss, 2A is a moving base, 3 is a detector, 5 is a rotating mechanism, 6 is a sliding mechanism, 7 is a cylinder, 8 is a touch lever, 9 is a detector, 10 is a reference block, and 11 is a reference block. Measuring gears 12 are parent gears. In FIG. 4, the measurement gear 11 is placed on the boss 1, and the master gear 12 is moved by driving the cylinder 7 to mesh with the measurement gear 11. FIG. 4 shows a state before the measurement in which the master gear 12 and the measuring gear 11 are separated from each other.

The rotation mechanism 5 is composed of a spindle 5A and a motor 5B, and rotates the shaft of the master gear 12 while fixing it. When the cylinder 7 is driven, the moving base 2A is moved forward and backward by the slide mechanism 6. The touch lever 8 is arranged in the boss 1, and a contactor 8B is attached to the upper end of the touch lever 8. The contactor 8B contacts the inner diameter of the measuring gear 11. The lower end of the touch lever 8 contacts the contactor 9A of the detector 9, and the fulcrum 8A is provided in the middle of the touch lever 8. The touch lever 8 rotates about a fulcrum 8A in the boss 1 and transmits the deviation of the center position of the measurement gear 11 to the detector 9.

Next, a state in which the master gear 12 of FIG. 4 is moved and the measurement gear 11 and the master gear 12 are engaged with each other will be described with reference to FIG. In the state shown in FIG. 5, the reference block 10 and the detector 3 attached to the front end of the movable table 2A are in contact with each other, and the master gear 12 is rotated to detect the center-to-center distance L between the measurement gear 11 and the master gear 12. Detect with 3. The detector 9 measures the deviation of the center position of the measurement gear 11 and calculates the measured value to obtain the virtual center of the measurement gear 11. From the measurement data of the detector 3 and the measurement data of the detector 9, the center-to-center distance between the measurement gear 11 and the master gear 12 can be obtained to obtain the OBD.

Next, a measurement state of the measuring gear 11 having an inner diameter larger than that of the measuring gear 11 of FIG. 5 will be described with reference to FIG. 6C is the center of the boss 1, and C1 is the center of the measurement gear 11 having a large inner diameter. In FIG. 5, the measuring gear 11 is fitted to the boss 1, but in FIG. 6, the center of the measuring gear 11 is deviated by the distance h. Therefore, the data of the biased distance h is detected by the detector 9, the distance h is calculated by a calculator (not shown), and the center-to-center distance L is calculated while correcting the virtual center of the measurement gear 11, Measure OBD at 3.

[0006]

[Problems to be solved by the device]

 In the configuration shown in FIG. 4, the detector 9 for obtaining the virtual center of the measurement gear and the detector 3 for obtaining the distance between the centers of the measurement gear 11 and the parent gear 12 are separately required. This invention is arranged in the boss 1 and is held at a fulcrum at the lower end, and the first contactor attached to the upper end rotates to come into contact with the inner diameter of the measurement gear 11 and the second contactor of the detector 3. Provides a touch lever that contacts the contact point, equalizes the distance from the fulcrum to the contact point and the distance from the contact point to the first contactor, and extends the second contactor of the detector 3 to extend the touch lever An object of the present invention is to provide a gear tester that measures the OBD of the measurement gear 11 whose shaft center deviates from the center of the boss 1 by bringing it into contact with a contact point with one detector.

[0007]

[Means for Solving the Problems]

 In order to achieve this object, according to the present invention, a contactor 4B arranged in the boss 1 and held at a fulcrum 4A at the lower end and attached to the upper end rotates to come into contact with the inner diameter of the measuring gear 11, The touch lever 4 is provided so that the contact 3A of 3 contacts the contact point 4C, and the distance from the fulcrum 4A to the contact point 4C is made equal to the distance from the contact point 4C to the contact 4B. Unfold and touch the contact point 4C of the touch lever 4.

[0008]

[Action]

 Next, the configuration of the gear testing machine according to the present invention will be described with reference to FIG. FIG. 1 is a state diagram before measurement, in which the master gear 12 and the measurement gear 11 are separated from each other. 1 is a movable table, 4 is a touch lever, and others are the same as those in FIG. That is, FIG. 1 is obtained by removing the detector 9 and the detection block 10 from FIG. 4 and replacing the moving base 2A and the touch lever 8 of FIG. 4 with the moving base 2 and the touch lever 4.

The touch lever 4 of FIG. 1 is arranged in the boss 1, is held by a fulcrum 4A at the lower end, and a contactor 4B attached to the upper end rotates to come into contact with the inner diameter of the measurement gear 11. The contactor 3A of the detector 3 contacts the contact point 4C of the touch lever 4. Then, the distance from the fulcrum 4A to the contact point 4C and the distance from the contact point 4C to the contact 4B are made equal.

Next, a state in which the master gear 12 is moved from the state of FIG. 1 and the measurement gear 11 and the master gear 12 are engaged with each other will be described with reference to FIG. When the measurement gear 11 and the master gear 12 are engaged with each other, the detector 3 contacts the touch lever 4. Therefore, the detector 3 simultaneously detects the center-to-center distance between the measuring gear 11 and the master gear 12 and the deviation of the center of the measuring gear 11. In FIG. 2, since the detector 3 can detect the center-to-center distance L between the measurement gear 11 and the parent gear 12 from the movement distance of the contactor 4B of the touch lever 4, the detector 9 provided separately as shown in FIG. It is possible to measure the OBD of the measurement gear 11 without obtaining it.

Next, the measurement state of the measuring gear 11 having an inner diameter larger than that of the measuring gear 11 of FIG. 2 will be described with reference to FIG. C in FIG. 3 is the center of the boss 1, and C1 is the center of the measurement gear 11 having a large inner diameter. The measurement gear 11 is fitted to the boss 1 in FIG. 2, but the center of the measurement gear 11 is deviated by the distance h in FIG. The touch lever 4 in FIG. 3 rotates about the fulcrum 4A, and the contactor 4B moves with respect to the outer diameter of the boss 1 by the increment of the inner diameter of the measuring gear 11. The contactor 3A of the detector 3 extends and contacts the contact point 4C. Since the distance from the fulcrum 4A to the contact point 4C and the distance from the contact point 4C to the contact 4B are equal, the center-to-center distance L between the measurement gear 11 and the master gear 12 is calculated from the detection value of the detector 3, and the measurement gear 11 OBDs can be measured. That is, the touch lever 4 mechanically transmits the deviation of the center of the measurement gear 11 to the detector 3 as the deviation of the radius.

[0012]

[Effect of the device]

 According to this invention, it is arranged in the boss and held at the fulcrum at the lower end, the first contact at the upper end rotates to contact the inner diameter of the measuring gear, and the second contact at the detector contacts at the contact point. Provide a touch lever to make contact, equalize the distance from the fulcrum to the contact point and the distance from the contact point to the first contact, and extend the second contact of the detector to make contact with the contact point of the touch lever. Therefore, it is possible to measure the OBD of the measurement gear whose shaft center deviates from the center of the boss with one detector.

[Brief description of drawings]

FIG. 1 is a block diagram of a gear testing machine according to the present invention.

FIG. 2 is a state diagram in which a measurement gear 11 and a master gear 12 of FIG. 1 are engaged with each other.

3 is a measurement state diagram of a measuring gear 11 having an inner diameter larger than that of the measuring gear 11 of FIG.

FIG. 4 is a configuration diagram of a gear testing machine according to a conventional technique.

5 is a state diagram in which the measurement gear 11 and the master gear 12 of FIG. 4 are engaged with each other.

6 is a measurement state diagram of a measuring gear 11 having an inner diameter larger than that of the measuring gear 11 of FIG.

[Explanation of symbols]

 1 Boss 2 Moving table 3 Detector 3A Contactor 4 Touch lever 4A Support point 4B Contactor 4C Contact point 11 Measuring gear 12 Parent gear

Claims (1)

[Scope of utility model registration request] 1. The master gear is mounted on the boss (1) by mounting the measurement gear (11) on the boss (1).
Move the movable table (2) that holds the shaft of (12) to move the measurement gear (1
Push the master gear (12) against (1), measure the longitudinal movement distance of the shaft of the master gear (12) that meshes with the measurement gear (11) and rotate with the detector (3), and measure the measurement gear (11). In the gear tester, the first contactor (4B) placed inside the boss (1), held at the fulcrum (4A) at the lower end, and attached to the upper end rotates to contact the inner diameter of the measuring gear (11). And the second contact (3A) of the detector (3)
Is equipped with a touch lever (4) that contacts the contact point (4C), and the distance from the fulcrum (4A) to the contact point (4C) is equal to the distance from the contact point (4C) to the first contactor (4B). Then, extend the second contact (3A) of the detector (3) and touch the contact point (4) of the touch lever (4).
A gear testing machine for measuring the center position deviation of the measuring gear, which is characterized by being brought into contact with C).