This standard specifies the requirements and inspection methods for the working accuracy inspection of cylindrical vertical drilling machines. This standard applies to general-purpose cylindrical vertical drilling machines. GB/T 4018.2-1997 Inspection of the accuracy of cylindrical vertical drilling machines Part 2: Inspection of working accuracy GB/T4018.2-1997 Standard download decompression password: www.bzxz.net

1CS.25.100.20
National Standard of the People's Republic of China
GI/T 4018. 1-~4018. 2 1997
eqISo 2773-1--2773-2:1973
Pillar type vertical drilling machinesTesting of the accuracy
1997- 11 - 13 Issued
State Administration of Technical Supervision
1998-07-01Implementation
GB/T 401B.2—1997
This standard is formulated by using 1$O2773-2:1973 (confirmed in 1990) as equivalent as possible Vertical drilling machines-Testing of the accuracy-General part 2: Inspection of working object accuracy.
GB/T4018 is divided into two parts under the general title of GB/4018.15 Geometric accuracy inspection 3 Part 2 GB/T4018.2 Working accuracy inspection This standard will replace the working accuracy inspection part of GB4018-83 from the date of entry into force: Appendix A of this standard is the appendix of this standard.
This standard is issued by the Ministry of Machinery Industry of the People's Republic of China. This standard is issued by the Beijing Machine Tool Research Institute of the Ministry of Machinery Industry. The drafting unit of this standard is Beijing Tianlan Machine Tool Factory. This standard was first issued in 193.
(x/r 4018.2—1997
S0 ago
15:1 (International Organization for Standardization of Chemical Materials) is a joint organization of member countries of ISO (International Organization for Standardization of Chemical Materials). The work of formulating international standards is carried out through technical committees and completed or submitted to the ISO. The members of the ISO have the right to publish the number of changes to the topic or the number of changes to the topic. The ISO has two related international organizations, official and unofficial organizations should participate in the regular work of the ISO standard. Before the international standard proposal is accepted by the technical committee, it must be voted by all member countries. ||International Standard 18773 [(Original Standard SS202 30/C3 Machine Tool Technical Committee Super Draft, Card 973 for the proposed changes to various countries.
This standard is approved by the People's Republic of China; Aoke
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National Standard of the People's Republic of China
Precision Inspection
Cylindrical Vertical Drilling Machine
Part 2: Working Accuracy Inspection
rlllar Type vertical drilling mmchines - Testing the accuracy Part 2, testing the working accuracy 1 Scope || tt || This standard specifies the requirements and methods for testing the working accuracy of type vertical drilling machines. Standard type vertical drilling machines for effective purposes 2 Reference standards || tt || FAT 49:8.2—1997 || tt || eqv ​​1SO 2773-2:1973
The following standards contain the following articles, which are cited in this standard and are not all valid when this standard is published. All standards are subject to revision. All parties should discuss the use of the following standards. The latest version is not necessarily the latest version. 2670-R2 Goldwind cutting machine precision inspection will be listed in the National Technical Supervision and approved on November 13, 1997. 799-07-01 implementation
3 Working room inspection
(Another sheet:
GR/T 4018.21997
Inspection Items
The shaft is under the gravitational force of the pad,
The card-drawing shaft system has a vertical change in the process:
) in the inertia
sheep surface small
b: in the fixed
below
Xu Yan tools
2/1000
Special change||t t||Strength meter
Hot purchase 026702 inspection I pass purchase
No need to press 126 pieces
Should not make gas before inspection, at the same time
Should add a thing
F before the main shaft of the car
F effect push surface
Assume that the direct replacement installation comes to the main
Relevant parts of the clear only, direct
! Connect to the seven-axis clear that is, the hair shaft
Learn tons·A force F, and measure
In this force rod, the spindle shaft load is used to directly change the working surface: the dynamometer seat B should have sufficient area and brushness to eliminate any deformation of the workpiece. The value of the added force is selected as specified. If there is no existing positioning, the symptom force-drilling diameter relationship given in Appendix A can be used. The new position of the curved map is determined by the axis returning to the starting position. The work is in the middle of the stroke. For other positions, such as the work platform, lifting platform, and the bed with a regular axis adjustment point, the main cargo box should provide a calibration sheet for the inspection tool. GB/T 4018.2—7997
Appendix A
(Appendix to the standard)Www.bzxZ.net
The relationship between the axial force F and the diameter of the hole is shown in the curve
1+>5m. The curve is close to the actual practice.
292530
Diameter of hole
2This curve only gives the average force value when the new cumulative head can be formed on medium copper materials (protection egg practice = 550~650MP).
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