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What is the taper of bt40 and bt50 tool holders?

What is the taper of bt40 and bt50 tool holders?

Generally, BT toolholders are commonly used for cutting. What is the taper of bt40 and bt50 toolholders? Many people may not know this problem very well. Shenganbei is a professional manufacturer of toolholders. Today, let’s take a look at this problem!

BT type CNC tool holder is mainly a Japanese standard, and it is also a commonly used standard. BT means the taper shank for machining center machine tools manufactured by the Japanese standard MAS403, with a gripping groove for the manipulator; 50 means the size of the shank, 50 means the 7:24 taper with a diameter of φ69.85 at the large end, and it does not refer to a certain specific size;

BT50 tool holder taper: diameter 100mm tolerance is -0.05 to 0; trapezoidal groove bottom diameter 85mm; trapezoidal groove top width is 15mm, tolerance is 0 to +0.1; trapezoidal groove angle is 30 degrees up and down, tolerance is -15′ to 0 ; The distance between the center of the trapezoidal groove and the end surface of the spindle (the end of the big end of the tool holder cone) is 23.2mm, and the tolerance is plus or minus 0.1.

The tool holder of the machining center has several national standards. BT is the Japanese standard (MAS403), the taper is 7:24, and the size specifications are 60, 50, 40, and 30.

bt40、bt50刀柄锥度是多少?

 

Generally, BT toolholders are commonly used for cutting. What is the taper of bt40 and bt50 toolholders? Many people may not know this problem very well. Shenganbei is a professional manufacturer of toolholders. Today, let’s take a look at this problem!

BT type CNC tool holder is mainly a Japanese standard, and it is also a commonly used standard. BT means the taper shank for machining center machine tools manufactured by the Japanese standard MAS403, with a gripping groove for the manipulator; 50 means the size of the shank, 50 means the 7:24 taper with a diameter of φ69.85 at the large end, and it does not refer to a certain specific size;

BT50 tool holder taper: diameter 100mm tolerance is -0.05 to 0; trapezoidal groove bottom diameter 85mm; trapezoidal groove top width is 15mm, tolerance is 0 to +0.1; trapezoidal groove angle is 30 degrees up and down, tolerance is -15′ to 0 ; The distance from the center of the trapezoidal groove to the end surface of the spindle (the end of the big end of the tool holder cone) is 23.2mm, and the tolerance is plus or minus 0.1.

The tool holder of the machining center has several national standards. BT is the Japanese standard (MAS403), the taper is 7:24, and the size specifications are 60, 50, 40, and 30. What is the taper of bt40 and bt50 tool holders? “40, 50” represents the diameter of the taper section of the tool holder.

BT40: 63mm diameter tolerance is -0.05 to 0; trapezoidal groove bottom diameter 53mm; trapezoidal groove top width 10mm, tolerance is 0 to +0.1; the angle of the trapezoidal groove is 30 degrees up and down, the tolerance is -15′ to 0; trapezoidal groove The distance from the center to the end surface of the spindle (the end point of the tool holder cone surface) is 16.6mm, and the tolerance is plus or minus 0.1.

BT50: 100mm diameter tolerance is -0.05 to 0; trapezoidal groove bottom diameter 85mm; trapezoidal groove top width is 15mm, tolerance is 0 to +0.1; the angle of the trapezoidal groove is 30 degrees up and down, the tolerance is -15′ to 0; trapezoidal groove The distance from the center to the end surface of the spindle (the end point of the tool holder cone surface) is 23.2mm, and the tolerance is plus or minus 0.1.

BT is a Japanese standard (MAS403), the taper is 7:24, and the size specifications are 30, 40, 50, and 60. bt50 tool holder “50” is the size representing the diameter of the tapered section of the tool holder. In order to realize automatic tool change, 7;24 is like the golden section point of a shaft fit, and the tool holder has good versatility. It is the crystallization of academic research practice and theory that the center is not self-locking, and the benefits are negotiated. The global common standard, of course, must be the same in China. Machine tools can be sold elsewhere, all with the same tool holder specifications.

 
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