GB238249A - Improvements in or relating to grinding or abrading machines - Google Patents
Improvements in or relating to grinding or abrading machinesInfo
- Publication number
- GB238249A GB238249A GB19944/25A GB1994425A GB238249A GB 238249 A GB238249 A GB 238249A GB 19944/25 A GB19944/25 A GB 19944/25A GB 1994425 A GB1994425 A GB 1994425A GB 238249 A GB238249 A GB 238249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driven
- spindle
- shaft
- pulley
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
238,249. Micro Machine Co., (Assignees of Yerk, H. H., and Baumberger, W. J.). Aug. 7, 1924, [Convention date]. Round holes, enlarging and trueing.-An internal grinding machine comprises a base A having a bed B thereon upon which is a grinding-spindle carrying head C the work being supported by a holder F mounted on a reciprocating table G carrying reversing stops 1. The head has bearings 5 in which a rotating spindle carrier 6 is journaled the carrier having an eccentric bore with conical ends receiving a sleeve 7 supporting eccentrically a spindle 11. The sleeve 7 is adjusted, to vary the eccentricity of the spindle, by worm gearing 14, 15 and is locked in position by a conical sleeve 9 and a nut 10. The spindle carries at one end a grinding-wheel 11<a> and at the other end a pulley 12. The spindle and the table G are driven by an electric motor 18, which drives through a clutch 20, a shaft 21. The spindle 11 is driven from the shaft 21, through a telescopic shaft 49, 50, universal joints 51, 52 a shaft. 45 carrying a pulley 46, and a belt 47. In order to allow the driving shaft 45 to follow the eccentric movement of the spindle 11, the shaft 45 is carried by an arm 37 guided to move vertically by rollers 40, 41, 43<a> upon a frame 26 which moves horizontally on a fixed frame D and is guided and supported by rollers 27. 29, 31, 32, 34, 35, the arm 37 being mounted on the spindle 11 by a ball bearing 38 and carrying a tightener 48 for the belt 47. In order to adapt the machine to the use of different grinding-wheels and to the grinding of various sizes of cylinders, change speed gearing is employed to obtain the correct speed of orbital movement of the grinding-wheel and the correct movement of the work table per revolution of the wheel, means also being provided whereby with any setting of the change gear, an alteration in speed of the revolution of the spindle is accompanied by a proportional change in the speed of the table. The gearing is driven from the shaft 21 through two reversely arranged cone pulleys 53, 54 on parallel axes, the pulley 54 being driven from the pulley 53 by a belt which is movable along the pulleys; the sleeve 6 and work traverse are both driven from the pulley 54. The belt is shifted by a yoke 62 connected to cable 64, which runs over guide pulleys and comes out at the front of the machine, where it is moved by a handle 71 set by a scale 73. The sleeve 6 is driven by gearing 16, 78 from a countershaft 77, which is driven by a belt 75 from a pulley 74 on the shaft of the pulley 54. The table is driven from the shaft by belts 80, 84 and through gears 93, 94 in a box 4, the speed changes being obtained by a sliding key 97 moved by a circular rack 106 and a pinion 107 actuated by a handle 110; the table is driven from the gear box through a pinion 105a driven through worm gearing 104 from a shaft 95 carrying the gears 94; reversal of the table is brought about by the stops 1 thereon which move a lever 3, operating the usual bevel gearing 86 carried by a shaft which is driven by the belt 84. The table may be moved manually through bevel gears 111, 112 by a handwheel 4<a>. Liquid may be supplied through a pipe 120 to a pipe 121 passing through the spindle 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US238249XA | 1924-08-07 | 1924-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB238249A true GB238249A (en) | 1926-11-04 |
Family
ID=21817417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19944/25A Expired GB238249A (en) | 1924-08-07 | 1925-08-07 | Improvements in or relating to grinding or abrading machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB238249A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107639420A (en) * | 2017-10-25 | 2018-01-30 | 嘉兴创诺精密五金有限公司 | The integral processing apparatus and processing method of a kind of accessory |
CN109986433A (en) * | 2019-05-08 | 2019-07-09 | 曾祥乐 | A kind of all springy CNC machining center power spindle of 360 degree of circumferencial directions |
-
1925
- 1925-08-07 GB GB19944/25A patent/GB238249A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107639420A (en) * | 2017-10-25 | 2018-01-30 | 嘉兴创诺精密五金有限公司 | The integral processing apparatus and processing method of a kind of accessory |
CN109986433A (en) * | 2019-05-08 | 2019-07-09 | 曾祥乐 | A kind of all springy CNC machining center power spindle of 360 degree of circumferencial directions |
CN109986433B (en) * | 2019-05-08 | 2024-02-23 | 惠州市玻霸智能科技有限公司 | CNC machining center power main shaft with elasticity in 360-degree circumferential direction |
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