The Ministry of industry and information technolog

The Ministry of industry and information technology publicized the names and main contents of 34 machinery industry standards

electromechanical home learned that on October 29, the Ministry of industry and information technology has completed the preparation and revision of 34 machinery industry standards, such as ball linear guideway pair Part 2: accuracy inspection, according to the industry standard preparation and revision plan. In order to further listen to the opinions of all sectors of society, the deadline is November 28, 2020

34 names and main contents of machinery industry standards

this part specifies the inspection requirements, inspection methods and corresponding tolerances of geometric accuracy, positioning accuracy and repeated positioning accuracy, and working accuracy of CNC small tool arrangement lathe

this part is applicable to ordinary, precision and high-precision CNC small tool arrangement lathes with a maximum bar diameter of 46mm

this standard specifies the general requirements of lubrication expression, the contents and illustrations of machine tool lubrication instructions, the installation, shape and size of lubrication signs, lubrication maintenance cycle, etc

this standard is applicable to the preparation and use of lubrication instructions by machine tool manufacturers or users

this part is applicable to general-purpose vertical surface milling machines with worktable width of 250mm ~ 630mm, column surface milling machines with worktable width of 250mm ~ 1600mm, end face surface milling machines, and ram surface milling machines with worktable width of 400mm ~ 1000mm

this part is applicable to general-purpose vertical surface milling machines with worktable width of 250mm ~ 630mm, column surface milling machines with worktable width of 250mm ~ 1600mm, end face surface milling machines, and ram surface milling machines with worktable width of 400 mm ~ 1000mm

this part specifies the geometric accuracy, positioning accuracy, repeated positioning accuracy, working accuracy inspection requirements, inspection methods and corresponding tolerances of the horizontal fine boring machine

this part is applicable to ordinary and precision single-sided and double-sided horizontal fine boring machines with worktable width of 250 mm ~ 700 mm

this part specifies the requirements, inspection methods and corresponding tolerances of the geometric accuracy, positioning and repeated positioning accuracy of the NC axis, transmission accuracy and working accuracy of the NC gear shaper

this part is applicable to CNC gear shapers with a maximum workpiece diameter of 125 mm ~ 3150mm

this part specifies the requirements, inspection methods and corresponding tolerances of the geometric accuracy, CNC axis positioning accuracy, repeated positioning accuracy and working accuracy of the thread milling machine

this part is applicable to thread milling machines with maximum milling diameter up to 320 mm and CNC thread milling machines

this part specifies the axis naming of cycloidal gear grinding machine, geometric accuracy, positioning accuracy and repeated positioning accuracy of CNC axis, inspection methods of working accuracy and corresponding tolerances, etc

this part is applicable to cycloidal gear grinding machines with a maximum outer diameter of 250mm ~ 1000mm

this standard specifies the material, heat treatment, inspection methods of main accuracy items, selection principles of measuring tools, and calculation and acceptance of relevant dimensions of the finished products of groove series combined fixture elements

this standard is applicable to 8mm, 12mm and 16mm groove series combined fixture elements

this part specifies the requirements for material and heat treatment, processing and assembly quality, safety and health, appearance quality, marking, inspection rules, rust prevention, packaging and transportation of ball linear guide pairs

this part is applicable to ball linear guide pairs with ball as rolling body and specifications of 15 ~ 125

this standard specifies the marking, structural type, main performance indicators, technical requirements and inspection methods of the telescopic machine tool guide rail protective cover. Tensile test: the tensile strength of the three specimens shall not be lower than the specified tensile strength value of the grade of reinforcement; The tensile strength of the joint specimen of grade 3 reinforcement after waste heat treatment shall not be less than 570Mpa of the tensile strength of hot-rolled grade 3 reinforcement; At least two test pieces are broken outside the weld, inspection rules, marks, packaging, storage and transportation

this standard is applicable to the telescopic machine tool guide rail protective cover with the rated traveling speed of 12m/min ~ 50M/min

this standard specifies the commonly used steel varieties of metal cutting machine tool parts, the depth and hardness of hardened layer of different heat treatment, the expression method of heat treatment technical requirements and their marks on the drawing

this standard is applicable to steel parts of various machine tools

this standard specifies the basic requirements of microswitches, including terms and definitions, classification, characteristics, product related data, normal use, installation and transportation conditions, structural and performance requirements, tests, etc

this standard is applicable to AC 50? Hz (or 60? Hz), voltage to 380? 5. DC voltage to 220? In the control circuit or auxiliary circuit of V, the switch is used for control, limit, positioning, travel, signal or program conversion

this standard specifies the basic requirements of overload relay in advance when purchasing machine tool heat, such as oxide skin, metal debris, etc., including terms and definitions, classification, characteristics, product data, normal use, installation and transportation conditions, structure and performance requirements, tests, etc

this standard is applicable to thermal relays for overload protection of motors in main circuits with a rated voltage of AC not more than 1000 V or DC not more than 1500 v

this standard specifies the terms and definitions, symbols, classification, characteristics, product related data, normal use, installation and transportation conditions, structure and performance requirements, tests, etc. of electromagnets

this standard is applicable to the electromagnet for switch type hydraulic valve used for solenoid valve control in the control circuit with single-phase AC 50Hz, 60Hz, voltage up to 380V or single-phase bridge full wave rectification (without filter device) DC voltage up to 220V

this standard is not applicable to electromagnets for proportional valves

this standard is applicable to combination switches for machine tools with AC rated voltage of 690V or DC rated voltage of 660V and rated current of 100A at AC 50Hz and 60Hz

others can also be used by reference

this standard specifies the terms and definitions, classification, characteristics, product related data, normal use, installation and transportation conditions, structure and performance requirements, tests, etc. of electronic time relays

this standard is applicable to electronic time relays used for time control and indication in circuits with rated AC voltage of 380 V and below, frequency of 50 Hz (60 Hz) and DC voltage of 220V and below

this standard specifies the basic performance and requirements of plug-in devices for mechanical equipment, including: terminology, characteristics, normal working and installation conditions, structure and performance requirements, verification of characteristics and performance, etc

this standard is applicable to plug sockets with protection grade, protective grounding, contact sequence and anti misinsertion requirements for the connection between power circuits and power supplies or control circuits of various industrial machinery with rated voltage of AC 50Hz or 60Hz, 1000 V and below, or DC voltage of 1000 V and rated current of no more than 250A and the host

note: if the plug base is used as the power cut-off device, it can be negotiated with the manufacturer

this standard stipulates? DLY0？ Series, DLY3? Series, dly5? Terms and definitions, classification, characteristics, product related data, normal use, installation and transportation conditions, structure and performance requirements, tests, etc. of the series tooth type electromagnetic clutch

this standard is applicable to? DLY0？ Series, DLY3? Series, dly5? This clutch is used for the combination or separation of the driven part and the driving part in the mechanical transmission system

this standard is applicable to machine tool electrical appliances, including control and protection electrical appliances, as well as other electrical products with similar reliability requirements