JB/T 9930.4-1999 Technical requirements for vertical band sawing machines JB/T9930.4-1999 Standard download decompression password: www.bzxz.net

IC575.080.30
Machinery Industry Standard of the People's Republic of China
JB/T9930.1-9930.4—1999
Vertical Band Saw
Published on 1999-05-20
National Machinery Industry
2000-01-01 Implementation
JB/T9930.4—1999
This standard is revised on the basis of ZBJ57003—87 (Technical requirements for manufacturing and acceptance of vertical band sawing machines 3). This standard is a concretization and supplement to GB/T9061—1988 General technical conditions for metal cutting machine tools. This standard is consistent with the technical content of 2B157003—87 and has been re-edited in accordance with relevant regulations. This standard is part of the JBT9930 vertical band saw multi-system standardization potential: This series of standards includes the following four parts: JB/T9930.J-.1999 Vertical band sawing machine integer|| tt||1B/T9930.2—1999 Band Saw Machine Specifications JB/T9930.3-1999 Band Saw Machine Accuracy Inspection B9930.41999 Vertical Band Saw Machine Technical Conditions This standard is implemented in accordance with the implementation of the standard. 7.R15703—B7 This standard is proposed by the National Metal Cutting Machine Tool Standardization Technical Committee. This standard is initiated by the National Metal Cutting Machine Tool Standardization Technical Committee, and the responsible unit for this standard is Hunan Machine Tool Factory. The standard was first issued in July 1987.
Machinery Industry Standard of the People's Republic of China
Vertical Band Saw Machine Technical Conditions
Narrow standard specifies the requirements for the manufacture and acceptance of vertical band saws. This standard is applicable to vertical band saws with a maximum cutting thickness of 125~500mm. 2 Reference standards
JD/T9930.4—1999
Announcement date 157,0D3—8
The texts included in the following standards are generally cited in this standard and constitute the text of this standard. When this standard is issued, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GD/T9061—1988
GB1 6454-[996
GB/T16769—1997
B/T9872—1999
JB/T9874—1999
J/T9930.31999
Metal shoulder cutting machine tools, general installation conditions
Technical requirements for safety protection of sawing machines
Metal two-way measuring machine tool sound pressure measurement method
Metal mesh making machine tool mechanical processing parts general technical conditions metal primary cutting machine tool assembly general installation conditions Beijing-style end description inspection
When accepting the machine tool according to the small standard, it is necessary to simultaneously check GB/T 9061, JB/T9872, .[R/T 984 and other standards that are not specified in this standard must be inspected on the same day.
4 Accessories and tools
To ensure the basic performance of the machine tool: the accessories and tools listed in the table should be supplied randomly. 1
Screw feeding nesting
Four-disk belt front pipe
Belt adjustment strip
5 Safety and health
Maximum saw thickness mrn
Numbers and specifications shall be determined by the manufacturer according to the actual situation. The safety protection of the machine tool shall comply with the provisions of (B154: 5.
Applicable to manual feed machine tools
5.3 There should be no abnormal screaming and impact sounds during the operation of the machine tool. The noise level of the machine tool shall be determined according to the provisions of G-month T16769. Approved by the National Machinery Industry Bureau on May 20, 1999, and January 1, 2000 Implementation
JB/F9930.4—1999
, under low, medium and high speed idling conditions, the internal pressure level of the machine shall not exceed 3dB(A), 6 batch work and assembly quality
6, 1 bed and workbench are important parts, and should be aged after roughing. 6.2 wear wheel, mechanical stepless speed change wheel should be statically balanced after roughing, G.3 upper saw wheel seat and bed joint surface, gearbox and bed joint, reverse gear upper and lower joint surface, workbench rotary joint, according to the requirements of important joint surface assessment,
6.4 gearbox, hydraulic The system shall not have oil loss phenomenon: 6.5 For the wheel, the kneading force of the handle shall be tested within the travel range according to Book 2. Table 2
Maximum new learning
No age change construction strict wheel
Separator performance when dry olefin
On the sensitive wheel moving hand wheel
The outer surface of the saw wheel rim is in the same plane, and its exchange rate shall comply with the provisions of Table 3. Table 3
Maximum adjustment of cutting thickness
Machine tool operation test
After the machine tool operation test, 1 The main motion tree of the machine tool should start from the lowest speed and operate in low, medium and high speeds. Operation time: Lowest speed, 15min;
Medium speed: 15 min;
Maximum speed, not less than 30m.
! The working table's first flat wheel
Measure the temperature and temperature rise of the bearing at the outer shell of the main shaft bearing of the saw wheel. The temperature shall not exceed 70°C, and the temperature rise shall not exceed 4°C. .2 When the machine tool is running idle, the working mechanism shall be stable and smooth. .3 When the main motion is level-to-reverse, its operation shall be light and flexible: it shall be able to lock directly during high-speed operation, and the transmission clutch handrail shall be positioned correctly, and the clutch shall not be automatically disengaged. ? .! The speed control indicator or indicator plate shall be accurate during operation, and the error shall not exceed ±5%. .6 After the band saw blade is subjected to force, the guide filter shall be in good contact with the movable saw blade, and the upper and lower rollers shall rotate flexibly. 7.! When running at high speed, the band saw blade shall not have obvious 7. If the machine tool adopts the motorized mode to realize the worktable feeding, the worktable is not allowed to move obviously during feeding. 7? Check whether the electrical system of the machine tool, the working conditions and reliability of the lubrication system, cooling system and safety protection equipment of the machine tool meet the relevant standards. JB/T9930.4-1999 7.10 After the idle running test, check the geometric accuracy of each item according to JB/T9930.3. 1 Machine tool load test This series of machine tools should be subject to the following tests: a) Maximum productivity test; e) Test of the maximum power of the main drive system of the machine tool; d) Coal saw system connection test.
For vertical sawing machines produced in batches, one-tenth of them are tested under two-thirds of the maximum torque and two-thirds of the maximum impact force using bimetallic band saw blades. It is allowed to use the power of the motor (one-third of the rated power) to assess the cutting specifications. See Table 4. For. b) The inspection should be carried out regularly. The inspection quantity of each batch shall not be less than 100 sets. Table 4
The thickness of the armored material and section (A
45 steel:
45 steel:
0 × 50
100×50
160×100
250 ×100
Bimetallic strip adjustment strip【calculated x thickness】
12.5×0.9bzxZ.net
25.0×0.9
303×1.06
During the load test, all the mechanical parts of the machine tool should work normally, safely and reliably. 9 Machine tool accuracy inspection
9.1 The machine tool accuracy inspection shall be carried out in accordance with JB/T9930.3, sawing time
Productivity
can/min
9, 2 The geometric accuracy of the machine tool shall be inspected before and after the load test. The working accuracy test of the machine tool shall be carried out after the load test. The actual measured value of the final accuracy test shall be recorded in the product certificate. 17
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