JB/T 2523.3-1999 This standard is a revision of JB/Z 130-79 "Series of Floor-type Lathes". During the revision, only editorial changes were made, and the main technical content remained unchanged. This standard is part of the JB/T 2523 "Floor-type Lathe" series of standards, which includes the following four parts: JB/T 2523.1-1997 Technical conditions for floor-type lathes JB/T 2523.2-1999 Parameters of floor-type lathes JB/T 2523.3-1999 Series of floor-type lathes JB/T 2523.4-1999 Accuracy inspection of floor-type lathes This standard specifies the series composition, use, performance characteristics, varieties and parameters of floor-type lathes. This standard applies to newly designed floor-type lathes for general use with a maximum workpiece rotation diameter of 1600~8000mm in the pit and a maximum workpiece length of 2000~4000mm between the centers. It also applies to floor-type lathes for general use without pits. This standard was first issued in March 1979. JB/T 2523.3-1999 Floor-type lathe series JB/T2523.3-1999 standard download decompression password: www.bzxz.net

ICS25.080.10
Machinery Industry Standard of the People's Republic of China
JB/T2523.3—1999
Floor-type lathe
Published on 1999-05-20
Series of models
Implemented on 2000-01-01
State Bureau of Machinery Industry
JB/T2523.3—1999
This standard is a revision of JB/Z13079 "Series of Floor-type Lathes". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged
"Floor-type Lathe This standard replaces JB/Z130-79 from the date of implementation. This standard is proposed by the National Technical Committee for Metal Cutting Machine Tools Standardization. This standard is under the jurisdiction of the Heavy Machine Tool Branch of the National Technical Committee for Metal Cutting Machine Tools Standardization. The drafting units of this standard are: Qiqihar No. 1 Machine Tool Factory and Qinghai Heavy Machine Tool Factory. This standard was first issued in March 1979.
1 Scope
Standard of the Machinery Industry of the People's Republic of China
Series of Floor-type Lathes
This standard specifies the series composition, purpose, performance characteristics, varieties and parameters of floor-type lathes. JB/T2523.3—1999
Replaces JB/Z13079
This standard applies to new-design floor-type lathes for general use with a maximum workpiece rotation diameter of 1600-8000mm in the pit and a maximum workpiece length of 2000-4000mm between the centers. It also applies to floor-type lathes for general use without pits. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. JB/T2523.2—1999 Floor lathe parameters JB/T2523.41999
JB/T9871—1999
3 Series composition
Floor lathe precision inspection
Metal cutting lathe precision classification
The series composition of the machine tool is shown in Figure 1.
Follow-up lathe series composition
4 Application and performance
4.1 Floor lathe
Floor lathe
Figure 1 Series composition of floor lathe
CNC floor lathe
The type of the machine tool is shown in Figure 2, and its layout is: the spindle box is on the ground, there is a pit between the spindle box and the base plate, and the bed (tool holder) can be placed in multiple positions on the base plate in the vertical and horizontal directions. Figure 2 Floor lathe
The floor lathe is a basic series, which is suitable for light industry, chemical industry, papermaking, cement, metallurgy, shipbuilding, port, mining machinery, various types of machinery repair and other small and medium-sized machinery industries. Approved by the State Bureau of Machinery Industry on May 20, 1999 and implemented on January 1, 2000
JB/T2523.31999
The machine tool should have the performance characteristics of rough turning, semi-finishing turning, and finishing turning of disc-shaped, annular parts and thin-walled cylindrical parts with large diameter, short length and light weight, as well as turning inner and outer cylindrical surfaces, turning inner and outer conical surfaces, turning end faces, grooving, and cutting. The machine tool accuracy should comply with the provisions of JB/T2523.4. The machine tool is a V-level precision machine tool specified in JB/T9871-1999. According to the special order of the user, in order to meet the needs of machining large-diameter simple parts, the maximum rotation diameter on the base plate can be increased on the basis of the base model. Except for the increase in the center height of the machine tool, other parameters remain unchanged. In order to expand the performance of the machine tool, the following special accessories can also be provided: a) Center frame;
b) Threading device:
c) Profiling device:
d) Grinding device.
4.2 CNC floor lathe
In addition to the use and performance characteristics of the base model, the machine tool should also have the performance characteristics of automatic machining of complex parts such as rotating surfaces and threads and constant speed cutting of end faces. The machine tool accuracy adds position accuracy requirements on the basis of JB/T2523.4. 5 Varieties
The varieties of machine tools are shown in Table 1.
Table 1 Floor lathe series variety table
Maximum workpiece rotation diameter in the pit
Floor lathe
CNC floor lathe
6 Parameters
The parameters of the machine tool are shown in Table 2.
Maximum workpiece rotation diameter in the pit
Maximum workpiece length
Maximum workpiece weight
Between centers
In the pit
Maximum rotation diameter on the base plate
Distance from the center of gravity to the faceplate end face when the maximum workpiece weight is suspended
Faceplate diameter
Maximum cutting force of the tool rest
Maximum torque transmitted by the faceplate
Faceplate speed range
Tool rest feed range
mm/min
AC traction
DC traction
AC traction
DC traction
Longitudinal travel of tool rest
Power of main motor
Top cone angle
Estimated weight of machine tool
JB/T25 23.3—1999
Floor-type lathe series parameter table
0.25-2000
0.16~2000
Mechanical industry standard
Series spectrum
Floor-type lathe
JB/T2523.3—1999
Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
1/16 Printing sheet 1/2 Number of words 8000bzxz.net
Format 880×1230
First printing in July 1999
First edition in July 1999
Print count 1-500
Price 500 yuan
99-193
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