CN203534568U - A high precision involute spline distance-over-bar flexible measurement apparatus - Google Patents

Abstract

The utility model relates to a high precision involute spline distance-over-bar flexible measurement apparatus, and belongs to measurement apparatuses for machined parts examination clamps. A stop pin is fixedly connected with a machine base. A linear bearing is connected with the machine base in a sliding mode. The linear bearing is in differential slip with a sleeve. A transmission bar and the sleeve are in sliding connection. The sleeve is in pin junction with a pin. A measurement head is in threaded connection with the sleeve. A dial gauge is in threaded connection with the sleeve. A handle is in threaded connection with a cam. A spring is positioned between the transmission bar and the measurement head. The high precision involute spline distance-over-bar flexible measurement apparatus of the utility model is advantageous in that: the high precision involute spline distance-over-bar flexible measurement apparatus is novel in structure, and can carry out measurement on external splines accurately and rapidly and determine the distances-over-bar of the external splines; the efficiency and the accuracy of on-site measurement are guaranteed; and in measurement, the cam and the linear bearing are employed to make the measurement to be very accurate and the usage to be very labor saving.

Description

High-precision involute spline cross-rod distance flexible measuring device

technical field

The utility model belongs to a measuring device for a machine-added part inspection jig.

Background technique

The measuring device is a very important part of the inspection fixture, and the reading of the final measurement result is completed by it. The accuracy of the measurement device itself and the selection of the measurement point position directly affect the measurement results. The standard measurement tools in the design of the inspection fixture are dial indicators and dial indicators. The accuracy of measurement transmission is the most critical link to reduce measurement errors and improve measurement accuracy. Ease of use and easy reading of indication values are also issues to be considered in the design.

At present, in the design of inspection fixtures for machined parts, when it comes to the measurement of high-precision involute splines, chute-type and square-groove measurement mechanisms are usually used. This type of measurement mechanism is easy to wear and the sliding is not flexible. The cam handle needs to be overcome. The spring force is large, not particularly labor-saving.

Contents of the invention

The utility model provides a high-precision involute spline cross-rod distance flexible measuring mechanism to solve the problems of easy wear, inflexible sliding, and large spring force that the cam handle needs to overcome in the existing measuring mechanism, which is not particularly labor-saving.

The technical scheme of the utility model is: the stop pin is fixedly connected with the machine base, the linear bearing is slidingly connected with the machine base, the linear bearing is differentially sliding with the sleeve, the transmission rod is slidingly connected with the sleeve, the sleeve is connected with the dial pin, and the measurement The head is threaded with the sleeve, the indicator is threaded with the sleeve, the handle is threaded with the cam, and the spring is located between the transmission rod and the measuring head.

The utility model has the advantages of novel structure, accurate and rapid measurement of the external spline, determination of the spanning distance of the external spline, ensuring the efficiency and accuracy of on-site measurement, and the use of cams and linear bearings during measurement makes the measurement very accurate , very labor-saving to use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the cam and the handle part on the body of the utility model.

Among the figure, machine base 1, measuring head 2, spring 3, linear bearing 4, sleeve 5, transmission rod 6, stop pin 7, indicator table 8, dial pin 9, cam 10, handle 11.

Detailed ways

The stop pin 7 is fixedly connected to the base 1, the linear bearing 4 is slidingly connected to the base 1, the linear bearing 4 is differentially sliding to the sleeve 5, the transmission rod 6 is slidingly connected to the sleeve 5, and the sleeve 5 is connected to the dial pin 9 , The measuring head 2 is threaded with the sleeve 5, the indicating table 8 is threaded with the sleeve 5, the handle 11 is threaded with the cam 10, and the spring 3 is located between the transmission rod and the measuring head.

Pull the handle 11 backwards to move the dial pin 9, the dial pin 9 moves with the sleeve 5, the measuring head 2 and the indicator 8, the spring 3 is in a compressed state, reverse the handle 11, through the stop pin 7, the transmission rod 6. The spring 3 resets the measuring mechanism and is in the measuring state.

Claims (1)

1. A high-precision involute spline flexible measuring device for cross-rod distance, characterized in that: the stop pin is fixedly connected with the machine base, the linear bearing is slidingly connected with the machine base, the linear bearing and the sleeve differentially slide, the transmission rod and the The sleeve is slidingly connected, the sleeve is connected with the dial pin, the probe is threaded with the sleeve, the indicator is threaded with the sleeve, the handle is threaded with the cam, and the spring is located between the transmission rod and the probe.

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