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Self locking drill chuck accuracy test standard

Flyeagle Machinery Manufacture Co., Ltd. Time:2012/8/10 16:39:50

1 range

This standard stipulated self-tightening drill chuck precision and test methods.

This standard applies to a taper hole and a screw hole connected self-tightening drill chuck.

2 reference standard

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions are

For the effective. All standards are subject to revision, concerned parties using this standard should be explored using the latest edition of the following standards of possibility.

GB/T 197 - 1981 common thread tolerances and fits ( diameter 1~355 mm )

6090 - 1993 GB/T drill chuck

GB/T 17421.1 - 1998 test code for machine tools -- part first: in no load or finishing conditions the geometrical precision of the machine tool

3 examine with mandrel

3.1 test typesⅠdrill chuck spindle requirements is shown in figure 1.

3.2 test typesⅡdrill chuck spindle requirements is shown in figure 2.

4 geometric accuracy testing

Geometric accuracy inspection according to table 1.

Serial number	Simple graph	Inspection item	Allowable error mm						Inspection tool	Inspection method With reference to the relevant provisions of GB/T 17421.1 - 1998
G1		Test bar Radial runout	Maximum Clamp Diameter	TypeⅠ				Type II	Inspection jig Test mandrel Indicator Test rod	5.6.1.2.3 In the drill chuck hole or a screw hole and end location, installed in the inspection on the core shaft, a core shaft is placed in the test fixture, drill chuck clamping bar examination, indicator measuring head touches the test rod bar, rotating mandrel test. Indicator maximum readings with size difference test rod inspection, shall be in compliance with the tolerances specified
				M	P	D
			4	0.05	0.08			0.16
			6~3	0.06	0.12	0.16		0.20
			16	0.07	0.14	0.20		0.24
G2G2		Jacket Size To beat ( type Type II does not. )	The largest typeⅠ Clamp Diameter	TypeⅠ					Inspection jig Test mandrel Indicator		5.6.1.2.2 Drill chuck tapers to positioning, installed in the inspection on the core shaft, a core shaft is placed in the test fixture, indicator measuring head touches the front end of the outer sleeve on the outer circle, rotary core shaft survey. Indicator reading maximum difference, is the outer radial runout
				M			F
			4	0.10			0.12
			6~13	0.12			0.15
			16	0.15			0.20
Note 1 class M,Pgrade P machine,D grade and type II for electric tools. 2 Table 1 accuracy test order, does not represent the actual test order, in order to test is convenient, can be performed in any order inspection.

The 5 bar examination

The 5.1 bar examination by two top hole supporting rotating cylindrical surface inspection, radial

Total run-out error not greater than 0.01 mm.

5.2 of diameter D and length L inspection inspection shall be as specified in table 2.

Table 2

Drill chuck clamping diameter

10 13

Test rod

d×l

Stick

4×45

6×65 8×80

8×80

10×95 13×105 16×110

16×110

Small stick

—

4× 45

4×45

5×60 6× 65 8×80

8×80

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