Large cone surface machining adjustment method and spindle

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The processing of the small cone surface workpiece, the process basically the use of the diameter of the spindle using a dial gauge (dilometer) calibration grinding machine rotary table or lathe tool holder angle, to achieve processing. However, if the above method is adopted for a workpiece with a large-angled conical surface, the depth of the table is limited, resulting in that the moving distance of the tool rest or the rotary table is too small, and the angle accuracy of the calibration is difficult to guarantee. The stepped mandrel and face mandrel introduced in this article can overcome the above defects. Both mandrels use their own difference, use the accuracy of the dial gauge to calibrate the table or tool holder angle, high precision, and mandrel manufacturing is simple. low cost. 1 Stepped mandrel The mandrel is generally used for workpieces with a unilateral angle of less than 45°. The mandrel uses its own height difference to replace the lack of a depth indicator for dial gauges. And using the accuracy of the dial gauge, the correct angle of the large-angle tool holder or rotary table can be corrected to ensure the correctness of the workpiece.

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figure 1

Mandrel accuracy requirements Stepped mandrel structure shown in Figure 1. Accuracy requirements: cylindricity ≤ 0.005mm/500mm, roundness <0.003mm, parallelism ≤ 0.005mm/500mm. Mandrel basic size requirements d ≥ 30mm, L'> 3L (L is the length of the workpiece cone surface). The calibration step pre-adjusts the lathe angle of the lathe or grinder table by the angle of the workpiece. Lathe horizontal handle (middle carriage) feed, with large diameter D touch table 0.1mm, table zero, read horizontal handle scale value M, return. The feed length L' of the small carriage longitudinal handle is L' = Dd 2sina where a is the unilateral angle of the workpiece. The lathe's transverse handle (middle carriage) feeds, and d touches the table 0.1mm to zero: reads the lateral handle scale value N. Constantly adjust the angle of the small carriage or table so that M = N, get sina = sina' = Dd 2L' 2 face end mandrel face mandrel suitable for workpieces with unilateral angle greater than 50 °, used to calibrate the table or knife holder angle.

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figure 2

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image 3

Mandrel size and accuracy requirements Mandrel structure shown in Figure 2. The dimensions and accuracy requirements are as described above. School table steps. With the edge of the footpath at the table touch 0.1mm, table adjustment zero (later large drag the table can not return after touching the table, so as to avoid errors). Under the state of 0.1mm, touch the small carriage directly (Figure 3) to distance L' to the large diameter end face. Adjust the angle of the knife holder or table a' so that the length of the touching table on the both ends of the walking L' distance is 0.1 mm, and sina = sina' = SL'. Of course, the walking distance L' can also be arbitrarily set. The depth of the touching table S + ∆ S', ​​find other unilateral angle values. 3 Cautions After finishing the spindle, roughening and tempering require hardness ≥315HB. After the heat treatment, grinding at both ends of the center hole is required. The dial gauge (the dial indicator) must be perpendicular to the mandrel touch surface to avoid detection errors. The clearance of the nut of the device should be eliminated in all measurement processes to ensure the correctness of the measurement. When calibrating, both tops should not be too tight or loose for the top spindle. The first workpiece must be painted and matched with the fitting or taper ring plug gauge to verify the accuracy. Using the above mandrel calibration angle not only has high accuracy, but also can effectively improve the accuracy of the taper surface.

UCP Pillow Block Units(ucp pillow block bearings): Pillow block bearings,insert bearing with housing, flange bearing units, and plummer block all consist of a housing with a bearing mounted in it. They are available in a variety of materials, mounting configurations and various bearing features.It is simple to mounted bearing,each mounted unit acts as a system to position the bearing securely for reliable operation. Pillow block bearing is widely used in various of machinery, especially in food machine,and they also can be used into pharmaceutical machinery, conveyering systems, photo & film processing machinery, spin machine,dying & printing machinery,etc.

Bearing Unit 
No. 		Shaft Dia Dimensions(mm) Weight 
(kg)
d
mm h a e b S1 S2 g w n Bi
UCP202 15 30.2 127 95 38 13 19 14 62 11.5 27.4 0.63
UCP203 17 30.2 127 95 38 13 19 14 62 11.5 27.4 0.60
UCP204 20 33.3 127 95 38 13 19 14 65 12.3 31.0 0.66
UCP205 25 36.5 140 105 38 13 19 15 71 14.3 34.1 0.80
UCP206 30 42.9 165 121 48 17 21 17 83 15.9 38.1 1.30
UCP207 35 47.6 167 127 48 17 21 18 93 17.5 42.9 1.60
UCP208 40 49.2 184 137 54 17 21 18 98 19.0 49.2 1.83
UCP209 45 54.0 190 146 54 17 21 20 106 19.0 49.2 2.18
UCP210 50 57.2 206 159 60 20 25 21 114 19.0 51.6 2.68
UCP211 55 63.5 219 171 60 20 25 23 126 22.2 55.6 3.27
UCP212 60 69.8 241 184 70 20 25 25 138 25.4 65.1 4.52
UCP213 65 76.2 265 203 70 25 29 27 151 25.4 65.1 5.70
UCP214 70 79.4 266 210 72 25 31 27 157 30.2 74.6 6.66
UCP215 75 82.6 275 217 74 25 31 28 163 33.3 77.8 7.40
UCP216 80 88.9 292 232 78 25 31 30 175 33.3 82.6 9.00
UCP217 85 95.2 310 247 83 25 31 32 1870 34.1 85.7 11.00
UCP218 90 101.6 327 262 88 27 33 33 200 39.7 96.0 13.00

Maintenance:

Clean the bearing will be removed check, use methods such as taking pictures first record appearance. In addition, to confess the residual amount of lubricant and lubricant sampling, and then clean the bearing. Examination and distinguish can remove the bearings from scratch using, check on the accuracy for the standard, rotating accuracy, internal clearance and collaboration, raceway surface, insist on frame and seal rings etc. About the inspection effect that can be used by bearing or known bearing. Sentenced to standard according to the mechanical function and importance as well as other inspection cycle, etc. If you have the following injury, bearing shall not be applied from scratch, it is necessary to exchange.

Bearings type Pillow Block/ Mounted 
Brand     NMN / OEM
Precision Rating   P0(ABEC-1), P6(ABEC-3), P5(ABEC-5), P4(ABEC-7)
Vibration and noise level Z1V1, Z2V2, Z3V3, Z4V4
Clearance C0, C3
Housing Shape   T, P, FC, F, PA, PL
Housing Material  Cast Iron
Bearing Material   GCR15, Carbon Steel
Main markets Europe, South America, USA, Southeast Asia and Middle East
Quality  Standard quality ISO9001
Place of origin China
UCP Series Pillow Block Bearing


UCP Series Pillow Block Bearing -3

Ucp Pillow Block Units

Ucp Pillow Block Units,Ucp Series Pillow Block Bearing,Ucp Series Mounted Bearing,Pillow Block Spherical Bearing

Hebei Naimei Bearing Co., Ltd. , https://www.nmn-bearing.com