数控车螺纹G76怎么编程

2025-02-26 07:41:30
推荐回答(4个)
回答1:

G76 P(m)(r)(a) Q(△dmin) R(d);
G76 X(U)_ Z(W)_ R(i)_ P(k)_ Q(△d)_ F(I)_
P(m):螺纹精车次数00~99;
P(r):螺纹退尾长度00~99;
P(a);相邻两牙的夹角00~99;
Q(△dmin):螺纹粗车最小切削量,范围00·999毫米;
R(d):螺纹精车的切削量00~99·999毫米;
R(i):螺纹锥度,螺纹起点到螺纹终点的绝对坐标值,不输R(i)时,系统按直螺纹处理;
P(k):螺纹的牙高,也就是总切削深度1~9999999,半径值,单位:毫米,
Q(△d):第一次螺纹切削深度,1~9999999,半径值,单位:毫米,,
F:螺纹导程,
I:螺纹每英寸牙数,
X Z相对坐标;
U W绝对坐标
例如:G76 P030160( 03是精车次数 01是退刀量 60是螺纹是60度) Q80(最小吃刀量 半径值 0.08mm) Q0.05 (精加工余量 半径值 0.05mm ) , G76 X34.75( 螺纹底径) Z-30 (螺纹长度) P1623(牙高 半径值 1.623mm ) Q350(最大吃刀量 半径值 0.35mm) F3.0 (螺距)

回答2:

指令格式
:
G76
P(m)(r)(a)
Q(△dmin)
R(d)
G76
X(u)
Z(w)
R(i)
P(k)
Q(△d)
F(f)
指令功能:该螺纹切削循环的工艺性比较合理,编程效率较高。
指令说明:
m:表示精加工重复次数用01至99两位数表示;
r:表示斜向退刀量单位数,或螺纹尾端倒角值,在0.0f—9.9f之间,以0.1f为单位(即为0.1的整数倍),用00—99两位数字指定,(其中f为螺纹导程);
a:表示刀尖角度;从80°、60°、55°、40°、30°、29°、0°七个角度选择;
Δdmin:表示最小切削深度,当计算深度小于Δdmin,则取Δdmin作为切削深度;
d:表示精加工余量,用半径编程指定;
Δd
:表示第一次粗切深(半径值);
X
、Z:表示螺纹终点的坐标值;
u:表示增量坐标值;
w:表示增量坐标值;
i:表示锥螺纹的半径差,若i=0,则为直螺纹;
k:表示螺纹高度(X方向半径值);
f:螺纹导程。
例如;
M46X3
螺纹,计算出牙高和小径之后带入
G76
P030860
Q0.1
R0.2
(精车3次,退尾0.8倍导程,60°螺纹刀,最小切削量0.1mm,精车余量0.2mm)
G76
X42.753
Z40
R0
P1.624
Q0.7
F3
(直螺纹,牙高1.624mm,第一刀切深0.7mm,导程3mm)
单头螺纹的导程等于螺距,多头螺纹的导程等于螺距乘以螺纹的头数。

回答3:

通过视频讲解,螺纹复合循环指令G76的各个指令含义、使用场合,以及如何快速掌握该指令如何编程,最后通过仿真验证。

回答4:

什么系统

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