JB/T 8077.3-1999 JB/T 8077.3-1999 Technical requirements for broach grinding machines JB/T8077.3-1999 Standard download decompression password: www.bzxz.net

ICS 25.080.50
Machinery Industry Standard of the People's Republic of China
JB/T8077.1-8077.3—1999
Broach Grinding Machine
1999-05-20 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JRT80,3-309
This standard is formulated on the basis of the technical requirements for manufacturing and acceptance of broaching machines in 2nd N15S0-87. This standard is a specific and supplementary to GB/T6I-18 "General Technical Specifications for Metal Cutting Machine Tools". This standard is consistent with the technical content of ZBJ55009-87, and has only been re-edited according to relevant regulations. This standard is part of the 977 series of standards for blade grinding machines, which includes the following parts: JE 8077.1-1999 Blade grinders
JB/T8077.2-1999 Broach grinders
JB/T8077.3-1999 Blade ... The responsible unit for the technical standard is Wuhan Grinding Machine Research Institute. The standard was issued in May 1987.
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Broach Grinding Machines
This standard specifies the requirements for the manufacture and acceptance of reverse blade grinding machines. This standard is applicable to the marketing-grade broach grinding machines with a maximum grinding broach K of R00-2500mm. 2 Reference Standards
JB/T 8077.3—1999
BJ550J4×7
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid: All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB1031—1995
B/T 90611988
QBT17421.11998
JB/T 077.2--1999
JB/T9872—1999
IB/T 9874—1999
一 期 要求
Surface roughness integer value
General technical requirements for metal cutting and grinding machines
General inspection plan for machine tools Part 1: Geometrical accuracy of machine tools under no-load or pin-loading conditions. General technical requirements for machining of metal cutting machine tools. Metal grinding machine tools
Technical requirements for assembly
When accepting machine tools according to this standard, the end of GR9061, 1B 9872, BT9874 and other standards must be checked at the same time. The remaining acceptance items that are integrated in this standard shall be inspected.
Accessories and tools
Accessories and tools listed in Table 1 shall be supplied randomly. Table 1
Fork grip
Grinding wheel wrench
Center stand
Double-pointed handle
Inner hexagon folding handle
Long shaft
Split disc
Stem full protection
For clamping grinding wheel
For moving workpiece
For dismantling grinding wheel
For supporting workpiece
For machine tool lubrication| |tt||For sharpening broaches
For adjusting the workbench to draw the pattern
For maintaining the work
For sinking speed to expand the hair
Note: Special parts to expand the performance of the machine, cabinet steel users require the joint supply, Guohao Machinery Industry Bureau approved 14 people on 1999-05-20, it, nickname "
3 specifications, 1 each
4 external specifications!
3 kinds of heat stealing each!
Each machine tool 1
2000-01-01 implementation
5 Processing and assembly quality
JB/80773—1999
5.1 The longitudinal moving guide rail of the worktable and the horizontal moving guide rail of the head are the main guide rails, and wear-resistant or other wear-resistant measures should be adopted. 5.2 The following important castings must be treated after rough machining: including) bed:
6) worktable:
e) column:
d) slide:
e) bone seat:
f) grinding head variant;
g) headstock box:
h) tailstock body.
5.3 The longitudinal moving guide rail of the worktable and the horizontal moving guide rail pair of the grinding head should meet the requirements of "sliding (squeezing) guide rail". 5.4 The following guide rails shall be assessed according to the requirements of "Release Guide": a) Vertical lifting guide rail of the hatching head:
b) The joint surface between the tail guide surface and the workbench: c) The joint surface between the head ram and the vertical member. 5.5 The following joint surfaces shall be assessed according to the requirements of "Particularly Important Fixed Joint Surfaces" 4) The joint surface between the headstock and the T-operating surface: b) The joint surface between the grinding head housing and the end face of the ram. 5.6 The handwheel operating force shall be uniform within the travel range and shall not exceed the requirements of Table 2. Table 2
Operating force of the tearing handle of the head
Longitudinal force of the handwheel of the workbench
Handwheel shifting force of the main head
5.7 The backlash of the handwheel of the main feed belt engraving device shall not exceed [710r. The wheel flange and the grinding wheel shall be statically balanced before installation. 5. 9 The main parts of the machine tool are:
a) Grinding wheel spindle:
b) Workpiece spindle:
center) Indexing plate (select one:
d) Grinding wheel spindle sleeve.
5.10 The cleanliness of the machine tool should meet the requirements of relevant thermal standards. Idle remote running test of the machine tool
6.1 The idle running time of the machine tool shall not be less than 4h. After reaching a stable temperature, measure the temperature and temperature rise of the bearing near the outer shell of the main bearing of the grinding head: The value should not exceed the specified value.
JB/TB77.3—1999
6.2 At all levels of transmission, the idling power of the main transmission system (excluding the idling power of the main motor) should not exceed 15% of the main motor power. The idling power of the grinding head should not exceed 25% of the target: Note: To determine the idling power of the grinding head, select a 10-speed motor with better quality, and display its idling power (measure the original power or motor no-load rate) The average value is used as the bid.
7 Machine tool load test
No machine tool load test
1 Machine tool accuracy test
More.1 Direct test is carried out according to the report 80. .2JB is the two tests of G10 and P1 in 77.2-19, which should be carried out when the machine reaches the medium speed and stable temperature. 8.3 When checking the straightness of the bed body and the guide in the straight space in G01 in 8077.2-1999, it should be fully The local tolerance of the inspection is 0.01mm/250mm. 8.4 During the precision inspection, additional inspections are required: 1. The flatness of the workbench surface shall not exceed the requirements of Table 3. Table 3 Confirm the flatness of the workbench surface during the inspection. 1 Doum Control force method G/T17421.1—1998 5.3.2.2: 5.3.2.3bZxz.net
As shown in the figure, place a new reference point at a, h, and center of the workbench. 1. Place a ruler at the same height as the highest point 1. At point d, place an adjustable ruler so that it touches the bottom surface of the ruler. Then place the ruler at point b-2. Use the adjustable ruler to measure the distance between the workbench and the workbench. The total length is 1Kmm. The algebraic difference between the distance between the span of the ruler and the workbench surface is calculated (it is about 350mm near the two ends of the workbench. The difference can be ignored.
8.5 During the working accuracy inspection, the surface roughness of the test piece shall be in accordance with the provisions of GB/T1031, and the value shall not exceed 0.63m. The working accuracy inspection is based on the paste specifications shown in Table 4. Table 4
During feeding and
WA60KVP30×10×32: WA60KVBW25×35×32, there should be no more than 3 double rows before there is no sense of treatment.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.