This part specifies the requirements for the manufacture and acceptance of horizontal band sawing machines. This section applies to horizontal band saws with a maximum sawing diameter of 250mm~2000mm. Horizontal band saws with a maximum sawing diameter less than 250mm or greater than 2000mm may refer to this section. JB/T 4318.4-2002 Horizontal band sawing machine Part 4: Technical conditions JB/T4318.4-2002 Standard download and decompression password: www.bzxz.net

ICS25.080.60
J57
JB
Machinery Industry Standard of the People's Republic of China
JB/T4318.4—2002bZxz.net
replaces JB/T4318.4— 1996
Horizontal band sawing machine
Part 4: Technical conditions
Horizontal band sawing machinePart4:Specifications
Released on 2002-07-16
2002- 12-01 Implementation
Foreword released by the National Economic and Trade Commission of the People's Republic of China
1
2
3
5
6|| tt||7
8
9
Scope
Normative reference documents
.General requirements
Accessories and tools,|| tt||Processing and assembly quality.
Machine tool dry running test.
Machine tool load test
t+t
Machine tool accuracy inspection
Quality assurance,
Table 1
Table 2
Random accessories and tools
Horizontal band saw load test
Table of contents
JB/T4318.42002
II
JB/T4318.4—2002
Foreword
JB/T4318 "Horizontal Band Sawing Machine" is divided into four parts: Part 1: Series type Spectrum:
Part 2: Parameters:
- Part 3: Accuracy inspection
- Part 4: Technical conditions.
This part is Part 4 of JB/T4318.
This part replaces JB/T4318.41996 "Technical Conditions for Horizontal Band Sawing Machines". Compared with JB/T4318.4--1996, the main changes in this part are as follows: The scope of application is expanded:
The "Safety and Health" chapter is canceled;
The productivity requirements in the load test of a machine tool are increased: " Quality Assurance" chapter.
This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Metal Cutting Machine Tool Standardization Technical Committee. The unit responsible for drafting this section: Changsha Sawing Machine Research Institute. The main drafters of this section: Xu Sun, Chen Tiejian, Jiang Ping. The previous versions of the standard replaced by this part are: JB4320-1986, JB/T4318.4-1996. I
1 Scope
Horizontal band sawing machine
Part 4: Technical conditions
This part specifies the requirements for the manufacture and acceptance of horizontal band sawing machines. This section applies to horizontal band saws with a maximum sawing diameter of 250mm to 2000mm. Horizontal band saws with a maximum sawing diameter less than 250mm or greater than 2000mm may refer to this section. 2 Normative reference documents
JB/T4318.4-2002
The provisions in the following documents become the provisions of this part through the reference of this part of JB/T4318. For dated reference documents, all subsequent amendments (excluding corrigenda) or revisions do not apply to this section. However, parties to an agreement based on this section are encouraged to study whether the latest versions of these documents can be used. . For undated referenced documents, the latest version applies to this section. GB4053.1 Safety technical conditions for fixed steel straight ladders GB4053.2 Safety technical conditions for fixed steel inclined ladders GB4053.3 Safety technical conditions for fixed industrial protective railings GB4053.4 Fixed industrial steel platforms
GB/T5226. 1 Industrial Machinery and Electrical Equipment Part One: General Technical Conditions GB/T9061-1988 General Technical Conditions for Metal Cutting Machine Tools GB16454 Technical Requirements for Safety Protection of Sawing Machines | General technical conditions for machine tool machined parts JB/T9873
General technical conditions for welding parts of metal cutting machine tools JB/T9874
General technical conditions for assembly of metal cutting machine tools
General technical conditions for assembly
JB /T9876 Metal cutting machine tools·Joint surface coating method inspection and evaluation JB/T10051 Metal cutting machine tool hydraulic system general technical conditions JB/T4318.3-2002 Horizontal band sawing machine accuracy inspection 3 general requirements
Acceptance according to this part When installing machine tools, other relevant acceptance items in GB/T9061-1988, GB/T5226.1 and other standards that are not specified in this standard must be inspected at the same time.
4 Accessories and tools
In order to ensure the basic performance of the machine tool, the accessories and tools listed in Table 1 should be supplied randomly. Table 1 Random accessories and tools
Name
Bimetal band saw blade
Special tools and accessories
Use
Sawing
Installation, Use and maintenance
Number
Quantity
1 piece
According to design requirements
JB/T4318.4—2002
5 Processing and Assembly quality
5.1 Saw frame, bed, column, main transmission box and other important parts. Generally, aging treatment such as thermal aging or vibration aging should be carried out after rough machining. 5.2 Wear-resistant measures should be adopted for worktables, columns, feeding guide rail pairs, working guide rail pairs, raceway working surfaces, etc., and comply with design requirements. 5.3 The following joint surfaces shall be assessed according to the requirements of "important fixed joint surfaces": the joint surface between the workbench and the workbench plate.
a)
b)
c)
The joint surface between the fixed work vise and the workbench, the feeding vise and the sliding saddle. The connecting surface between the main transmission box and the saw frame.
The joint surface between the guide arm and the saw frame guide rail. d).
e)
f)
g)
The joint surface between the bracket and the bed (applicable to horizontal band sawing machines with hinge structures). The joint surface between the column base and the machine bed (applicable to horizontal band sawing machines with column structure). The machine tool design requires the component joint surfaces to be assessed as "important fixed joint surfaces". Machine tool welding parts should comply with the requirements of JB/T9873. 5.4
The feeding work surface and the work surface should be at the same height and parallel. Use a flat ruler and a feeler gauge to check. The tolerance is 0.20mm. 5.5
5.6
The machine tool working vise should clamp the workpiece reliably and stably and meet the design requirements. 5.7
The handwheels and handles used in machine tool operations should comply with the requirements specified in 3.8.5 of GB/T9061-1988 within the working range. 5.8 The operating platform and working platform of the machine tool off the ground should comply with the relevant regulations of GB4053.1~4. 5.9 After the moving and rotating parts of the machine tool are assembled, the movement should be smooth, flexible and light, without any blockage. Machine tool dry running test
6
6.1 The main transmission mechanism of the machine tool should run in sequence starting from the lowest speed, and the running time of each speed should not be less than 2 minutes. Machine tools using stepless speed control devices can operate at low, medium and high speeds. The operating time at the highest speed shall not be less than 1 hour, and when the spindle bearing reaches a stable temperature, measure the bearing temperature and temperature rise. Its value should comply with the requirements specified in 6.6.1 of GB/T90611988. 6.2 Start the hydraulic system, and under the rated working pressure, the saw frame performs the idling operation with the main movement. The idling operation test at low, medium and high feed speeds is carried out. When the oil reaches a stable temperature, measure the oil temperature and temperature rise. The values ??should be Comply with the requirements of JB/T10051. 6.3 When the saw frame rises to the highest position and the feed motion is in the "neutral" (or inactive) position, the descent amount of the saw frame does not exceed 3mm/min (the measurement position is the center line of the maximum sawing width) 6.4 Transform each Manipulate the knob or handle to perform action tests such as raising and feeding the saw frame, feeding and returning the feeding mechanism, clamping and loosening the work vise, etc. no less than 5 times each to evaluate the flexibility and reliability of its functions. 6.5 For automatic horizontal band sawing machines and CNC horizontal band sawing machines, 4h (mechanical control), 8h (electro-hydraulic control) and 16h (digital control) continuous automatic cycle dry running tests of the whole machine should be carried out to assess their working reliability. 6.6 Measure the machine tool’s idling power when the entire machine is running at medium speed (spot check). The machine tool’s idling power should meet the design requirements. 6.7 Machine tool safety protection should comply with the relevant regulations of GB16454. 6.8 There should be no abnormal screams and impact sounds when the machine tool is running, and the sound pressure level of the entire machine should not exceed 85dB (A). The measurement method of machine tool noise sound pressure level shall be carried out in accordance with the provisions of GB/T16769. 6.9 Inspecting the working condition of the machine tool electrical system should comply with the relevant regulations of GB/T5226.1. 6.10. Check the working condition and reliability of hydraulic, lubrication and cooling systems. 7 Machine Tool Load Test
7.1 This series of machine tools shall undergo the following load tests (conducted according to the designed test specifications): Maximum sawing main component force test.
a)
b) Test that exceeds 25% of the maximum main sawing force for a short period of time. c)
Maximum power test of main drive system.
d) Maximum productivity test
2
JB/T4318.4—2002
Load test of batch-produced horizontal band sawing machines, as specified in Table 2 cutting conditions. Comprehensive random inspections of a), b), c) and d) should be carried out regularly, and the number of random inspections in each batch should be no less than one unit. Note: The maximum sawing main component force and maximum power refer to the maximum values ??stipulated in the design. During the load test, all mechanisms of the machine tool should work normally, be safe and reliable. Table 2 Horizontal band saw machine load test
Maximum sawing diameter
mm
250
>250~400
>400~630||tt ||>630~1000
>10001300
>1300~1600
>1600~2000
Minimum band saw blade width
mm||tt| |25.0
31.5
37.5
50.0
65.0
80.0
100.0
Specimen material||tt| |45 steel
45 steel
45 steel
45 steel
Specimen diameter
mm
100
150
200
>200
7.2 Recommended productivity values ??for machine tool sawing of different materials should meet the design requirements, 8 Machine tool accuracy inspection
8.1, Machine tool accuracy inspection is in accordance with JB/ T4318.3-2002. Sawing speed
m/min
≤70
≤70
≤.70
≤70
Assessed according to design requirements| |tt||Time before sawing
min
1.2
2.2
3.3
Productivity
cm2/min
65
80
95
90
8.2 The geometric accuracy of the machine tool should be inspected before and after the load test. The working accuracy of the machine tool is determined after the load test. The actual measured value of the last accuracy inspection shall be recorded on the certificate of conformity.
9
Quality Assurance
Under the premise of complying with the transportation, storage, installation, debugging, maintenance and use regulations of machine tools, the machine tool is damaged or cannot be used due to poor manufacturing and packaging quality. During normal operation, the manufacturer shall fulfill its product quality assurance commitments in accordance with the relevant provisions of the Quality Law of the People's Republic of China. People's Republic of China
Machinery Industry Standards,
Horizontal Band Sawing Machine Part 4: Technical Conditions
JB/T4318.4—-2002
Published by Machinery Industry Press Issuance
No. 22 Baanwanzhuang Street, Beijing
Postal code: 100037
*
Format 890mm×1240mm1/16?0.5 Print sheet?11 thousand words 2002 12 1st edition of the month, 1st printing
Price: 12.00 yuan
ISBN: 15111:7051
Website: http://cmpbook.com Editorial phone number: (010) 88379779| |tt||Direct sales center phone number:
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