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brass tube od spline inner thread

author:MF manufacturerstime:2022-03-15 19:43:28

1.External thread

National standard regulations,Threaded teeth(Large diameter)The termination line of the thread is expressed,Tooth(Trail)Use a fine line,In the view of the projection surface parallel to the screw axis,The chamfer or rounding portion of the screw should also draw;In the view of the projection surface perpendicular to the thread axis,Indicates that the fine line circle of the tooth is only painted3/4round,At this time, the chamfering of the thread is omitted.,Figure1。 

brass tube od spline inner thread

picture1 

2.internal thread
picture2Is the painting of the internal thread。Cutaway[picture2(a)],Tooth(Large diameter)Atrium,Teeth(Trail)And thread termination line is a rough line。Not cut[picture2(b)],Tooth、Tooth and thread termination lines are dashed。In the view perpendicular to the thread axis,The tooth is still painted3/4Circle's fine line,And specify the chamfer of threads, also omitted。

brass tube od spline inner thread

picture2

Drawing a non-infined screw hole,Generally, the depth of the drilling and the depth of the threaded portion should generally draw,Figure3(a)。When needed to indicate the thread,The tooth of the threaded tail is used in the axis30oThe fine line representation,Figure3(b)。picture12-7(c)Distance to the shaped hole。

brass tube od spline inner thread(brass tube od spline inner thread)

picture3

3.Inside、External thread connection Figure4Indicates that they are fitted together、External thread connection。National standard regulations,When the thread connection is shown in the cross-sectional view,Its spinning part should be expressed,Non-spiral parts are still in accordance with their own paintings。

brass tube od spline inner thread

picture4 Threaded connection

4.Non-standard thread painting
Drawing non-standard teeth,Shooting teeth should be drawn,And labeled the required size and related requirements,Figure5。

brass tube od spline inner thread(brass tube od spline inner thread)

picture5

Screws for threads

Various threaded paintings,For convenience difference,You must also label on the graphic。
(1) Normal thread label Annotate:
Characteristic code Nominal diameter×Pitch Rotation — Medium diameter、Top diameter tolerance code — Circular length code
in:Characteristic code M
Single line rough teeth thread only standard diameter,Single line fine teeth thread tag×Pitch。
Rotation:Right rotation、Left,No right,Left-handedLHExpress。
Thread diameter、Top diameter tolerance:Composed of a number representing a tolerance level and a letter indicating the position of the tolerance,Such as:6H、6g(Internal thread with uppercase letters,External thread with lowercase letters)。If the median diameter is the same as the top diameter tolerance,Oh, only one code,Such as:7h;If the thread is diameter tolerance band and the top diameter tolerance belt,Then mark separately,Such as:5g6g。
Spinning length:Thread spin length is specified in short(S)、middle(N)、long(L)Three kinds,Negative circulation length is not marked,Circular length value can be indicated when special needs,Such asM10-6g-40。
The annotation method of normal threads on the figure is to indicate the specified markup on the extension line of the dimension line or size line.,Dimensional boundaries lead from threaded large diameters。Note。

brass tube od spline inner thread

Ordinary thread label example

(2) Tube thread label Annotate:
Characteristic code Nominal diameter Tolerance level code
in:Characteristic code G Rc
The labeling method on the figure is to use a fine line,One end pointing the threaded large diameter,The other end is a horizontal fine line,Written the thread tag on the upper side of the horizontal line,Note。

brass tube od spline inner thread

Tube thread annotation example

(3) Lady thread label Annotate:
Characteristic code Nominal diameter×Lead(PPitch) Rotation
in:Characteristic code Tr
Single-line thread only standards the diameter,Multi-line thread tag×Lead(PPitch),Such as Tr 40X14(P7)。
Rotary thread。
The ladder screw is also a common thread.。Note, such as shown。

brass tube od spline inner thread

brass tube od spline inner thread

Trapezoidal thread annotation example

Sawdrawal thread label
(4) Sawdrawn thread label Annotate:
The sawdrawal thread labeling content and the ladder thread on the figure,as the picture shows。
Characteristic code Nominal diameter×Lead(PPitch) Rotation
in:Characteristic code B
Single-line thread only standards the diameter,Multi-line thread tag×Lead(PPitch),Such as Tr 40X14(P7)。
Rotary thread。
(5) Non-standard thread label
Non-standard threads except for labeling standard threads,Need to mark the medium diameter、Limit size of the top diameter。对于For special threads, you must fill before the thread code殊螺纹还要在螺纹代号前加注“特”字。

brass tube od spline inner thread

External thread【制造交流圈】Internal thread painting5000个机械视频;

Non-standard thread painting1000个机械动图,Do you still draw?5000个机械图纸;

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