JB/T 9011-1999 Technical requirements for single-spindle automatic lathes
Some standard content:
1C5 25. 088. 10
Machinery Industry Standard of the People's Republic of China
JB/T9011—1999
Single-spindle automatic lathe
1999-05-20 Release
Technical Conditions
2000-01-01 Implementation
State Machinery Industry Bureau
JE/TS011-1999
This standard is a revision of ZBJS301089 single-spindle automatic lathe, and the technical content is valid.
This standard replaces 2BJ5301089 from the date of implementation. Appendix A of this standard is a copy of the standard.
Technical parts of the meal, when revised according to the provisions of the national gold strong plan to the end of the machine standard digestion technical implementation of the public proposed, this standard in the national gold two cutting standard technical plan English automatic lathe described! The responsible drafting unit of this standard: South China Machine Tool. This standard was first issued in March 1989. 1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Single-axis Automatic Lathes
This standard specifies the requirements for the design, manufacture and acceptance of single-axis automatic lathes, JB/T 9011-1999
Replacement J108
This standard applies to 1! The maximum diameter of the ball material is less than 63mm and the maximum diameter of the disc is less than or equal to 100m.
2 Reference standards
The following standards contain provisions that are referenced in this standard or are provisions of this standard. When this standard is released, the versions shown are valid. All versions will be revised from time to time. Parties using this standard should consider the possibility of using the latest version of the above standards. GB2894—956
G8906188
GB/T145351993
GB16769E907
JB.9872—199
JB/198741999
JET 98771999
3—Most requirements
Safety mark
General technical requirements for metal cutting machine tools
Automatic lathe accuracy
Metal cutting machine tool acoustic level measurement method General technical conditions for plastic parts processed by metal cutting machine tools General technical case for metal cutting machine tool assembly Determination of the cleanliness of metal cutting machine tools
When accepting machine tools according to this standard, it is necessary to inspect other acceptance items of standards such as GB/T9061, JBFF9872, JB:［9874］ which can be integrated with this global standard at the same time.
1 Accessories and tools
To ensure the basic performance of the machine tool, the following accessories and tools should be supplied randomly: a) Spring chuck 1 piece; b) Material head parts: c) Dead material parts; f) Empty curve sample parts: f) Surface whole rod; f) Pull 1.
5 Safety 2 Health
5.1 The operation of the handwheel and handle shall comply with the following provisions: The force of the handwheel of the shaft clutch shall not be greater than 200N. b) The operating force of the rotary tool holder pin handle, the rotary tool holder positioning gear and the auxiliary wheel shall not be greater than 200N according to the setting date and the National Machinery Industry Bureau 1999-05-20 Standard 2000-01-01 Implementation
JB/T9011-1999
5.2 The hand-operated distribution shaft feed motion and the automatic feed motion should have a locking device. The hand wheel of the rotating shaft must be able to move automatically. 5.3 The gearbox door, the cover of the spindle box and the anti-expansion device of the feed exchange gear should be equipped with a device that interlocks the motor power supply, and should have the warning signs specified in GB2.
5. The machine should be able to stop automatically when the bar material is used up. The machine should not be allowed to run without clamping material in the spindle when it is adjusted. There should be a warning sign specified in GB2894 and a sign indicating "No clamping material, no start" in the visible position, and it must be explained in the machine manual. 5.5 The movable safety anti-expansion shield should be connected to the machine tool 1. Please note that 5.6 Check the machine's sound according to the provisions of GBT16769. There should be no abnormal noise or impact when the machine tool is running. When running at any speed level, the noise level of the machine shall not exceed 83dB (A) 6 Processing and assembly quality
6! The main parts such as the tool holder guide rail, rotary blade holder spindle sliding bearing, spindle, etc. must adopt wear-resistant measures that are compatible with the life. 6.2 The spindle box, rotary tool holder, tail magazine, longitudinal tool holder and guide are important castings and should be aged after rough machining: 3 The joint surface between the bed and the base shall be assessed according to the requirements of "important combination", 64 "The following joints shall be assessed according to the requirements of "particularly important combination":! The joint surface between the spindle box and the bed;
b1 The joint surface between the rail and the bed:
c! The joint surface between the vertical tool holder and the spindle box,
6.5 The high-speed rotating spindle assembly shall be subjected to dynamic balance test and calibration after assembly. The balance quality grade is G2.5.
Allowable unbalance: 2*2.5[60×10
175×10*
Allowable residual unbalance: -e-
-unbalance, m||tt ||Where: e
Residual unbalance, gmm:
HRotational rotation, rimin:www.bzxz.net
Part - mass of rotating body, k:
6,6The asymmetric structure on the main shaft, that is, the belt pulley of the load device and the pulley on the gearbox should be statically balanced at low speed, and the residual unbalance is allowed to be 5g on the working diameter, mm; when its speed is higher than the limit speed, it must be dynamically balanced. The limit speed must be determined by formula (3):
(r/min?
Formula: b, the rim thickness of the pulley (or the thickness of the disc-like parts), md - the working diameter of the pulley (or the outer diameter of the disc-like parts mm: (3)
6. There is a handwheel inside the scale device, the reverse balance of the handle, except The tool holder axial displacement of the wheel is 1/5 of the reverse empty weight, the rest is 1.20:
6. Clean and inspect according to JBT9B77, the internal cleaning chamber of the gearbox and other components shall be inspected by weight method, and the impurities and debris shall not exceed 2
JB/T(11-19
【Regulations. Other positions shall be inspected under the sensory decision, and there shall be no debris. 1
The most scientific gas has no diameter
Part or rhyme
Speed change
Snail protection
Gearbox oil ground
: Industry rat method inspection some products are subject to Shenzhen batch acceptance. The step installation ratio is tested by the "sensor method! Standard empty running test
7.1 Action test
a) The flexibility and reliability of the machine tool's starting and captive actions ; The distribution of wine receiving and opening is flexible and reliable; Note
does not include the adaptor
c! The reliability of the change of speed and space (when changing the inner wheel, take the low, medium and high speed chase test: d) The swivel head can move stably and flexibly (quickly without hysteresis!
) The reliability of the rotating head position action, the reliability of the material mechanism, the feed mechanism action of the automatic transmission structure: the flexibility and reliability of the return channel, the longitudinal tool holder, the tail account, the vertical tool holder position filter mechanism: the reliability of the manual and motorized sliding system operation, and the reliability of each dynamic path meets the design requirements; ,) The safety protection and insurance bag stomach are built. Action test details: 1.1 Temperature rise test: The spindle should run at high speed for at least 3 hours, and the base temperature should be measured at the front and rear bearings of the spindle box. 1.3 Idle run rate test (spot check): The idle run test of the main transmission system should be designed and tested. 7.4 Continuous idle run test: The machine should be tested in all operating states without cutting. No friction should occur during the entire operation process. The continuous running time should be at least 8 hours (it can be carried out together with the idle run test). 7.5 Spindle speed and dust production rate (oil change!) The spindle return tolerance is the rated value -2%--6%: 6) The production error shall not exceed 10% of the specified value. 8 Load test of machine tools
H1 Test of basic torque of machine tool main engine JR/79011—1999
Test according to the test specification prepared by the design, except for the cutting core, cutting attachment, the maximum allowable reduction of the material diameter is 10%
Note: This test is for the machine tool with a maximum material diameter of m. 2 The maximum cutting point of the machine tool is not allowed to be tested according to the test specification prepared by the design. The spindle speed reduction during cutting is not more than 10%, and the material shrinkage is not more than 0.5mm.3 The maximum point is tested by threading. The test distance is set according to the modified test plan. Cut and turn the test for more than 0 pieces. During the test, the thread should not be disordered and the length error should not be greater than +1 square meter. This tester is used for bar material processing machine tools with rotating racks and speed tool holders. 8.4 The maximum power of the machine is tested by reverse power according to the specified power. 9 The accuracy test of the machine tool is carried out according to GR/T[4.5.15. 9.1 Precision test of G6, 0, (19, G9, 612, G13 and other items should be tested when the machine reaches the medium speed stable speed. 9.1 Working precision test || tt || 9.2.11. The working precision test shall be carried out according to the design specifications specified in the design documents. 9.2.2 The surface roughness R of the test piece shall be 2.5 m. 9.3 The clearance test of the main shaft positioning device (except for the machine tool with gear positioning) Test method: left and right rotation Tightly insert the test sample into the tool hole of the rotary frame, fix the indicator on the rotary frame: make the probe and the test piece 100mm away from the rotary center, set the indicator lever on the rotary tool holder, and add 50N force in the reverse direction at 500mm from the rotary center (for machines with material diameter greater than or equal to 25mm, add 60N force) to measure the difference. The difference is calculated by the difference between the two reverse numbers. The error should be 0.05mm; each tool hole should be tested,
10, other
10. 1. Rigidity test (check)
The rigidity test of the machine tool shall be carried out in accordance with the relevant standards. 10.2 Life test (consumption test)
10.2.1 The machine tool components produced in batches shall be inspected at the user's factory. 10.2. The machine tool components included in the rated load are the machine tools that have been used for many years by the user's factory under the conditions of two-shift/operation system and avoiding the current use rules. 2.3 Before the inspection, the design-specified operating parts shall be replaced, and the adjustable parts of the machine shall be properly adjusted. 10.2.4 The machine tool working The method for maintaining the accuracy of the test piece is as follows: According to the provisions of B/T14535, make 25~ test pieces, and use the statistical method to calculate the standard deviation S: If s is equal to 651 times, then GR155-:991T is used as the difference value of the flammability (see Appendix A for the test method)
Test piece
JB/T9011-1999
Appendix A
(Standard Appendix:
Working accuracy dispersion test
After the main spindle of the machine is running at medium speed and the degree of stability is achieved, the test piece must be turned. The tool holder is installed in the position where the maximum precision can be determined. The outer diameter of 25 test pieces is turned continuously. Each test piece is turned. The tool rotates back and forth. 42 test pieces love the tool.
42.1 Test piece
The test piece material is aluminum, copper or Y12 steel.
Test piece type and size certificate A1, A2. 5
D=0.s×large diameter, 2
on, =0.8×maximum average forward stroke or 2.3×large material diameter, suction mouth short value 0,-0.8xlarge diameter;-D.8 large process
After using high-speed steel knife, the geometric angle is filled with excessive, so that it must be said in the inspection report period, Liu Yuxin small blade, can first eliminate the initial side scratches, that is, first turn a few pieces, and then cut the test piece. 43 cutting integer
F-30 mmi:
f-0 Imm/r:
When recovering, cooling source should be added.
Calculation of work precision dispersion
A4.1 "For example, see Table A1.2 for precision dispersion calculation and nominal size small increase value name
-Ex,tn
a figure is attached
JB/T9011—1999
factory special vertical dispersion calculation to find the field
to 24
teaching calculation
standard health S\-
add L. test number V-25 pieces
use a table to convert the individual virtual separation
.2.1pm
t ns)
Stationary difference
Standard deviation after drop.
JB/T9011-1999
Decay A? (Complete)
Specialized evaluation of the film
Makeup non-standard deviation% (when 45 yuan 34 is not normal S,c= 0.76 μm
$-ys2 - Sg = vt.62 - 0.762 =1.4 μm working point, = 65, = 6 × 1.4 = 8.4μm3
Range: d difference coefficient
A4.2 The reliability calculation series of the sensitive instrument is shown in Table 2 and Table A3. 8
..1.28
Number the 24 added test pieces, measure each test piece twice at the same measuring point, divide the 24 test pieces into 3 groups, and perform the table calculation as follows .
First avoidance
The total difference between the two measurements and the standard scale
The original
The current difference"
Test run
The second avoidance
Table A2 (complete)
Second avoidance
Table A3 Measurement of the small carryability of the measuring instrument
And detection 22
and the nominal size small increase value name
-Ex,tn
a drawing is installed
JB/T9011—1999
factory makes special vertical dispersed mass calculation to find the field
sub to 24
teaching to calculate
standard health S\-
add L. test number V-25 pieces
with a table
convert the individual false separation
.2.1pm
t ns)
stationary difference
drop standard adjustment difference.
JB/T9011-1999
A? (complete)
Special evaluation of the film
Standard deviation of the makeup quality (when 45 yuan 34 is not normal S,c= 0.76 μm
$-ys2 - Sg = vt.62 - 0.762 =1.4 μm working point,=65,=6×1.4=8.4μm3
Range: d error coefficient
A4.2 The reliability calculation series of the sensitive instrument is shown in Table 2 and Table A3. 8
..1.28
The 24 added pieces are numbered, and each test piece is tested twice at the same measuring point. The 24 small positions are divided into 3 groups, and the table calculation is as follows .
First avoidance
The total difference between the two measurements and the standard scale
The original
The current difference"
Test run
JB/T9011-1999
Table A2 (complete)
Second avoidance
Table A3 Measurement of the small carryability of the measuring instrument
And detection 22
and the nominal size small increase value name
-Ex,tn
a drawing is installed
JB/T9011—1999
factory makes special vertical dispersed mass calculation to find the field
sub to 24
teaching to calculate
standard health S\-
add L. test number V-25 pieces
with a table
convert the individual false separation
.2.1pm
t ns)
stationary difference
drop standard adjustment difference.
JB/T9011-1999
A? (complete)
Special evaluation of the film
Standard deviation of the makeup quality (when 45 yuan 34 is not normal S,c= 0.76 μm
$-ys2 - Sg = vt.62 - 0.762 =1.4 μm working point,=65,=6×1.4=8.4μm3
Range: d error coefficient
A4.2 The reliability calculation series of the sensitive instrument is shown in Table 2 and Table A3. 8
..1.28
The 24 added pieces are numbered, and each test piece is tested twice at the same measuring point. The 24 small positions are divided into 3 groups, and the table calculation is as follows .
First avoidance
The total difference between the two measurements and the standard scale
The original
The current difference"
Test run
JB/T9011-1999
Table A2 (complete)
Second avoidance
Table A3 Measurement of the small carryability of the measuring instrument
And detection 2
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