SU1402796A2 - Device for checking intermittent kinematic error of gear-wheels - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to mechanical engineering, in particular to means for controlling the kinematic error of gear wheels. The purpose of the invention is to enhance the functionality by providing control of gear wheels of different diameters. This is achieved by the fact that the longitudinal carriage 7 is located on the transverse carriage 16. When the diameter of the controlled wheel 3 is changed by the mechanism 17, the carriage 16 is moved to the calculated distance in accordance with the radius of the initial circumference of the controlled wheel. 2 Il.

Description

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The invention relates to machine building, namely to the means of controlling gears, and is complementary to the main one in accordance with the author. St. No. 1232927.

The purpose of the invention is to enhance the functional capabilities by providing control of gear wheels of different diameters.

FIG. 1 shows a structural diagram of an instrument for controlling a discontinuous kinematic error of gear wheels; in fig. 2 is a view A of FIG. one. ; The device for controlling the discontinuous kinematic error includes a frame 1, a revolving spindle 2 located in the stall Ian 1 and intended to be mounted on the b of its ends of the controlled gear 3, an involute fist 4 mounted on the second end of the first spindle 2, the slave link of the first spindle 2, the feed link 5 of the first spindle 2, the JKO gesture attached to it, the leading link 6 of the first spindle 2, mounted on the base 1 and kinematically connected with the driven link 5, the upper carriage 7 and the lower carriage 8, located on n The base plate of the bed 1 and kinematically connected with the profile side of the involute cam 4, the second spindle 9, located parallel to the first spindle 2 and connected to the upper and lower carriages 7 and 8, is an inductive displacement sensor 10 mounted on the upper carriage 7, electromagnetic coupling 11, one half of which is connected with the first spindle 2, and the other with an involute cam 4, an electromagnetic stop 12 located on the rear side of the involute cam 4, the latter being mounted on the first spindle 2 with the possibility turned In the form of a full worm wheel, roller 13; and a bar 14 fixed on the lower carriage, indicator 15 connected to the upper one: carriage 7, transverse carriage 16 located on the upper plate of the bed 1 above the upper carriage 7 with the possibility of mixing in the direction perpendicular to the direction of movement of the upper carriage 7, and the mechanism 17 for moving and measuring its mixing, and the upper carriage 7 mounted on the transverse carriage 16.

The device works as follows.

The device is tuned to the nominal value of the main circumference of the test wheel 3. To do this, the device 18 moves the transverse carriage 16 so that the tip of the measuring tip is spaced from the axis of the first spindle 2 by a value equal to the radius of the main circumference of the wheel being monitored. Moreover, the contact surface of the measuring tip

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under normal tension between the measuring arm and the inductive sensor 10, during adjustment, is in a plane parallel to the direction of movement of the transverse carriage and the passage of necks through the axis of the first spindle 2. The wheel 3 is installed in the center of the device and connected to the first spindle 2. When the device is powered on, the measuring system of the device is reset. An electrically connected clutch 11 is previously turned on, and the electromagnetic stop is turned off. The measuring tip is engaged with the first tooth at the starting point of the involute so that the pen is positioned in the middle of the paper tape (not shown). After that, the profile of the first tooth of the wheel is checked over the entire length of the involute section.

In the process of controlling, the controlled wheel 3 is reported to have rotational motion, the upper carriage 7 is exemplary movement through the electromagnetic clutch 11, involute fist 4, bar 14, roller 13 and second spindle 9. The amount of movement of the upper carriage 7 is controlled by the indicator 15. At the time of reaching the upper carriage 7, a predetermined position (after the probe has left the tooth), the rotation of the first spindle 2 stops. The control of the first tooth is completed. Next, prepare the measuring system to control the next tooth. Turn off the electromagnetic clutch 11 while simultaneously turning on the electromagnetic stop 12. In this case, the involute fist is disconnected from the first spindle 2, and the electromagnetic stop 12 becomes in the operating position.

Due to the fact that the worm gear is a self-braking system, the first spindle 2 with a controlled wheel 3 remains stationary. The upper carriage 7 begins to move back and through the second spindle 9, the roller 13 and the bar 14 rotates the involute cam 4 relative to the first spindle 2 in the opposite direction until the rear side of the involute cam 4 touches the electromagnetic stop 12. The latter is installed so that in its working position it stops the involute cam 4 in a position that corresponds to the passage of the upper carriage 7 backward by the pitch of the engagement. After the upper carriage 7 is retracted by the engagement pitch, the electromagnetic clutch 11 is turned off and the electromagnetic stop 12 is turned off. In this case, the measuring system of the device is connected to the first spindle 2, and the electromagnetic stop 12 moves away from the involute fist 4. Inserting the worm gear backward return the first spindle 2 s

upper carriage 7 to its original position. The instrument is prepared to monitor and record the next tooth.

Since the rotation angle of the first spindle 2 in the opposite direction is much smaller than the angle of its rotation in the forward direction, control of the second and subsequent teeth is possible due to the fact that the driven link 5 is made in the form of a full worm gear.

The use of the instrument for controlling the continuous kinematic error together with the recorder allows you to record the involute patterns without turning off the tape drive mechanism and do not stop the recorder's pen during the entire monitoring cycle.

In the transition to the control of a gear with a different diameter, the described order of adjustment of the device and control on it is repeated.

The use of new structural elements in the form of a transverse carriage 16 and a mechanism 17 for carrying out and measuring the magnitude of its movement allows the upper carriage with a measuring tip to be quickly and with high precision, so that the latter can be installed at any distance from the axis of the test piece installed in center of the first spindle 2.

All this provides the ability to control gear wheels of different diameters.

The device was tested under production conditions when testing gears with a number of teeth Z 39 and 56 with a module m 3 MM based on a universal evolvent type KEU. At the same time bracket for

installation of the indicator 15 exact movements of the upper carriage 7 was installed and fixed on the transverse carriage.

Claims (1)

Invention Formula Instrument for controlling the discontinuous kinematic error of gear wheels according to the author. St. No. 1232927, characterized in that, in order to expand its functionality by providing control of gear wheels of different diameters, it is provided with a transverse carriage located on the upper plate of the frame above the upper carriage that can be moved in the direction perpendicular to the direction of movement of the upper carriage, and a mechanism for moving and measuring its movement, and the top carriage is mounted on the transverse carriage.