This part specifies the technical conditions for the manufacture and acceptance of vertical band saws. This part is applicable to vertical band saws with a maximum sawing thickness of 125mm~160mm. Vertical band saws with a maximum sawing thickness greater than 1600mm can refer to this part. JB/T 9930.4-2002 Vertical band saws Part 4: Technical conditions JB/T9930.4-2002 Standard download decompression password: www.bzxz.net

ICS 25.0B0.60
Machinery Industry Standard of the People's Republic of China
J/T9930.4—2002
Replaced JBrT9930.4—1999JB9982.4—1999Vertical band sawing machine
Part 4: Technical conditionsbzxz.net
Vertical band sawing machine
Part 4: Speciflcatlons
Published on July 16, 2002
Implemented on December 1, 2002
Published by the State Economic and Trade Commission of the People's Republic of China
Current normative reference documents
Questionable fee request
4 Attached.
5 Standard work and quality products,
6 Air safety empty operation test
Bed load test.
&Test bed inspection.
9 Quality test guarantee
Table】Random accessories scientific tools
Table 2 Standard bed load test
JB/T993042002
JB/T 99S0.4--2G02
JBT930 "Technical Conditions for Vertical Band Saws" is composed of 2 parts: Part 1: Season number:
-Part 2, Series type:
-Part 3: Degree of inspection:
Part 4: Technical conditions:
This part is Part 4 of JB/T930: This part replaces B/9030.4-199y4 Technical conditions for vertical band saws and IB/T9932.4-1999 Technical conditions for vertical band saws. In addition to taking into account relevant standards and regulations, this revision also incorporates the relevant contents of TB/T0032.4-1999 into this part. The main changes of this part compared with JB/T930.4-I999 are as follows: Applicable scope expansion:
--Added "automatic assembly quality" inspection item: - "machine load test" in the "saw blade welding test": ---Added "adequate guarantee" chapter.
This part is jointly issued by China Machine Tool Federation and this part is under the jurisdiction of the National Technical Committee for Standardization of Cutting Machine Tools: Drafting unit of this part: Changsha Research Institute, drafters of this part: Xie Wenzhong, An Xiang, Zheng Ping. The previous versions of the standards replaced by this part are: ZB J57 (03-1987.JB/T 9930.4-1999:—7.FJ57008—1989, JB/19932.4—1999.1 Standard
Vertical band sawing machine
Part 4: Technical conditions
This part specifies the technical conditions for the manufacture and inspection of vertical band sawing machines. This part is applicable to vertical band sawing machines with a maximum cutting thickness of 125mm~1600mm. Vertical band sawing machines with a maximum cutting thickness of more than 16D Duu can refer to this part. 2 Normative reference documents
JB/T9930.42092
The clauses in the following documents become the clauses of this part through the application of this part of GB/T 9930. All subsequent amendments (excluding errors) or revisions of dated referenced documents are not applicable to this part. However, all parties involved in reaching an agreement on this part are encouraged to register the latest versions of these documents. For undated referenced documents, the latest version applies to this part, GB 4053.1 Safety technical conditions for fixed steel ladders, safety technical conditions for fixed industrial guardrails, GB 4053.3
National standard for fixed industrial steel platforms
2 405.3.4
GB/T522K.1T Electrical equipment for industrial machinery Part 1: General technical requirements GBT9061—198 General technical requirements for metal cutting machine tools GB16454
GB/T16769
JBT9872
JB/T9873
JB/9874
JB/T987G
JR/T1XSE
Technical requirements for safety protection of sawing machines
Method for measuring the noise level of metal cutting machine tools General technical requirements for metal cutting machine tool weldments General technical requirements for metal cutting machine tool assembly General technical requirements for metal cutting machine tool joint surface coating exemption inspection and determination General technical conditions for hydraulic system of metal cutting machine tools JB/T9030.3—2002 Part 3: Precision inspection 3 General requirements
When accepting machine tools according to this standard, the remaining relevant acceptance items of GB/T5226.1.GB/T9061—1988.J/T9872.T9R73.R/T9874B/T9876. m/T10051 must be inspected at the same time. 4 Accessories and tools
To ensure the basic performance of the machine, the accessories and tools listed in Table 1 should be supplied randomly. 1 Machine accessories and tools
Double metal belt aluminum strip
Special tools and accessories
Installation, use and maintenance
Design requirements
JE/I 9930.4—2002
6 Processing and assembly quality
5.1 The finished body, frame, second workpiece, etc. must be dried and aged before starting. The finished product must be treated with aging treatment and other aging treatments.
5.2 The existing bed joints must meet the requirements of 1BT9873. 5.3 The saw wheel and the mechanical stepless speed change wheel must be tested for balance after the work. Note: Applicable to large-scale beds and machine tools with extraordinary high technology. 4 The work table, feed guide and excitation, work guide rail, fishing channel, etc. should adopt wear-resistant spacing and meet the design requirements: 5.5 The following joints must be fixed: the joint between the work table and the first work table, the joint between the main transmission box and the bed or end frame), and the joint between the upper saw wheel seat and the bed (or saw channel). d) The rotary joint surface of the work table (or saw frame). The upper and lower joint surfaces of the card transmission box. The joint surface of the fixed tiger pin and the T work table. The joint surface of the feed guide rail pair. The design requirements of the mine are as follows: "Fixed lifting table" is required. Before the parts are combined, the brush work table should be at the same height, and the feed work table should be at the same height as the main T work table. Use a flat ruler to check the size. The design of the work table is allowed to be lower than the feed work table. The error is in line with the design requirements. 5.7 The lifting wheel of the machine is within the working stroke range and should comply with the requirements of GBT9061-1988413.8.5. 5. The surface of the machine should comply with the relevant provisions of GB4053.1~4. 5.9 The main and slave wheels are in the same plane, and the opening meets the design requirements. 5.10 The moving and rotating parts of the machine should be smooth, flexible and light, without blocking. 6 Machine tool idle running test
The machine and the transmission are all operated in sequence from the lowest speed, and the operation time of each level shall not be less than 2m. 5.1
The machine cannot be used for low, medium and high speed operation. The operation time of the band saw blade at a slightly high speed shall not be less than 11. When the three-axis bearing reaches the specified temperature, the temperature rise and temperature rise shall be measured. The total value shall meet the requirements of GB906119386.6.1. B.2 When the machine tool is running, the working mechanism is stable and reliable. 3 The active stepless speed regulation is used, and the hand wheel should be flexible and can be self-locking when running at high speed. 6.4 The manual positioning of the clutch of the transmission box should be reliable and accurate, and the opening and closing screen shall not be disengaged automatically. 2.5 The speed difference displayed by the device shall not exceed 25%. 6.6 After the belt is subjected to force, the bottom guide block or guide wheel shall be in good contact and the movement shall be free. B.7 When running at high speed, the belt shall not have obvious forward and backward movement. 68 The machine is operated by a workbench (or a support frame, when feeding, the workbench or saw frame should not have obvious material flow.
Center. 9 Measure the machine tool operation power when the whole machine is running at a constant speed (check), and the machine tool running at idle speed must meet the design requirements. 6.10 The safety level of the machine tool should comply with the relevant provisions of 0B16454. 6.1 There should be no abnormal screaming and impact sound when the machine is running. The whole machine produces sound pressure less than A). The determination method of the machine tool sound level is changed to GB16769: 6.12 Check the working condition of the electrical system of the machine speed: It should comply with the relevant provisions of T5226.1. 6.13 Check the working condition and reliability of the hydraulic, lubrication and cooling systems.14 For automatic type sawing machines, CNC type with error detection, 4h (mechanical control), 6h (electro-hydraulic control) and 8h (digital control) continuous automatic two-way idle operation should be carried out to test its working reliability. 2
7 Machine tool load test
This series of machine tools should be subjected to the following load tests (performed according to the designed test specifications): Maximum productivity test.
Power test of transmission system..
Test the thickness before sawing.
Maximum cutting test
JB/T9930.4—2002
The load test of the batch-produced machine tools shall be carried out according to the cutting conditions specified in Table 2. A), b), c), d) shall be regularly and comprehensively inspected, and no less than one machine shall be inspected in each batch. The main force and maximum power of the vertical band saw refer to the maximum value specified in the design. During the load test, all mechanisms of the band saw are working normally and safely. Table 2 Load test of vertical band saw
Large saw blade
Test piece material and cutting size
45 low: 70×50
45 steel: 100×50
45 steel; 160×103
45 steel: 200×100
45 mesh: 20/X200
45 period: 300×
45 steel: 400×600
Minimum band sawing speed
Note: The load test of the ordinary vertical band saw is carried out according to the design requirements, B Machine tool precision inspection
B.1 Machine tool precision inspection is carried out in accordance with JBT9930.3--2002, sawing time
um'frin
day.2 The geometric diameter of the machine tool is inspected before and after the load test. The working range of the machine tool is carried out after the load test. The actual measured value of the last precision inspection is recorded in the certificate.
9 Quality assurance
Under the conditions of continuous maintenance, storage, installation, commissioning, maintenance and convenient use of the machine, if the machine tool is damaged or cannot be properly inspected due to poor manufacturing and packaging quality, the manufacturer shall comply with the relevant provisions of the Quality Law of the People's Republic of China to fulfill the product quality assurance commitment,
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