CN2190277Y

CN2190277Y - Micrometer for measuring M value of cylindrical gear wheel

Info

Publication number: CN2190277Y
Application number: CN 93235602
Authority: CN
Inventors: 何保国; 朱治华
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-20
Filing date: 1993-12-20
Publication date: 1995-02-22
Anticipated expiration: 2003-12-20

Abstract

The utility model relates to a micrometer for measuring M value of a cylindrical gear wheel. The utility model has the technical proposal that the utility model is composed of a ruler frame (1), a fixed measuring anvil (2), a movable measuring anvil (3) and measuring heads (4, 5). The measuring head is composed of a positioning sleeve fixedly connected with a measuring bar. The utility model is adopted to measure the M velue of the cylindrical gear wheel conveniently, and has the characteristics of reasonable structure, exact measure, convenient use, etc.

Description

Micrometer for measuring M value of cylindrical gear wheel

The utility model relates to a kind of measurement milscale, particularly measures the milscale of cylindrical gear M value.

In machining, the transverse tooth thickness of the cylindrical gear that accuracy requirement is higher generally is to calculate with the method for measuring the M value.The M value can be amplified the tolerance of transverse tooth thickness, and the precision height so just need be measured the M value of cylindrical gear exactly.Existing method is two length bars or ball to be adhered to that same diameter (even number tooth) is gone up or recently in two teeth groove of (odd number tooth), measure the M value with common outside micrometer apart from same diameter then.But it is very difficult in same end section that this method guarantees two ball center, and unstable, and measuring accuracy is low, and error is bigger; Do not have specific purpose tool in addition, complicated operation, efficient are low.

The utility model purpose provides a kind of measurement cylindrical gear M value milscale, improves measurement accuracy, and is convenient and practical, solves the above-mentioned problems in the prior art.

Technical solutions of the utility model are: commonly have the chi frame, fixedly increasing by two gauge heads on the milscale of gage button, movable gage button, gauge head is formed by fixedly connecting by locating sleeve and length bar, the locating sleeve of a gauge head is placed in fixedly on the gage button, and another gauge head is placed on the movable gage button.

Adopt the utility model, when measuring cylindrical gear M value, two gauge heads are put into two teeth groove of same diameter (even number tooth) or the same diameter of distance nearest (odd number tooth), measured circle stud wheel M value is regarded as distance between two parallel lines (concerning straight spur gear for length bar outer bus) or two different surface beelines (being the outer bus of length bar for helical gears), under the influence of ergometry, length bar is adjacent to tested gear tooth slot two lateral tooth flanks, and the location goes out the M value by miking automatically.

The utlity model has in conjunction with reason, measure characteristics such as accurate, easy to use.

Fig. 1 is the utility model example structure synoptic diagram.

Fig. 2 is a gauge head structural representation among the embodiment 1.

Fig. 3 is a gauge head structural representation among the embodiment 2.

Fig. 4 is gauge head and a gage button connection diagram among the embodiment.

Fig. 5 is gauge head and a gage button A-A sectional view among the embodiment.

Below in conjunction with accompanying drawing, further specify the utility model by embodiment.

Embodiment 1

By chi frame (1), fixing gage button (2), movable gage button (3), gauge head (4,5) constitute cylindrical gear M value milscale, and gauge head is by locating sleeve (6) and length bar (7) formation, and locating sleeve is provided with the V-type groove, and length bar is welded in the V-type groove.Be respectively equipped with groove on gage button (2) (3), have corresponding hole on the locating sleeve, traveller (8) is stuck in wherein, and the outside compresses traveller (8) by annular opening spring (9), prevents landing.Gauge head and gage button can relatively rotate, and according to the different parameters of gear, make gauge head series, that match, finish the measurement to different gear M values.

Embodiment 2

With reference to accompanying drawing 3, in this embodiment, its composition is identical with embodiment 1, is fixedlyed connected by screw (10) between locating sleeve (6) and the length bar (7).

Claims

1, a kind of milscale of measuring cylindrical gear M value, have chi frame (1), fixedly gage button (2), movable gage button (3), two gauge heads (4,5) are arranged in it is characterized in that forming, gauge head is fixedlyed connected formation by locating sleeve (6) with length bar (7), the locating sleeve of a gauge head (4) is placed in fixedly on the gage button (2), and the locating sleeve of another gauge head (5) is placed on the movable gage button (3).

2, according to the milscale of the described measurement cylindrical gear M value of claim 1, it is characterized in that connected mode is between gage button and the locating sleeve: gage button is provided with annular ditch groove, the locating sleeve relevant position has the hole, and traveller (8) is stuck between groove and the hole, and the outside is provided with circular opening spring (9).

3,, it is characterized in that between said locating sleeve (6) and the length bar (7) for fixedlying connected according to the milscale of claim 1 or 2 described measurement cylindrical gear M values.