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    • 6. 发明专利
      GB359383A Improvements in or relating to grinding or abrading machines 未知
    • Improvements in or relating to grinding or abrading machines
    • GB359383A
    • 1931-10-29
    • GB2887130
    • 1930-09-26
    • CINCINNATI GRINDERS INC
    • B24B53/04
    • 359,383. Grinding. CINCINNATI GRINDERS, Inc., 3058, South Street, Cincinnati, Ohio, U.S.A. - (Assignees of Haas, F. S.; 5809, Wayside Avenue, Mount Washington, and Booth, C. ; 2980, Linwood Avenue, Cincinnati, both in Ohio, U.S.A.) Sept. 26, 1930, No. 28871. Convention date, Sept. 27, 1929. [Class 60.] Trueing rotating tools.-Apparatus for trueing the grinding-wheel of a centreless grinding - machine comprises a trueing diamond & c. tool mounted to be reciprocated across the wheel, and also to be fed thereto, by hydraulic means, the direction and speed of movement being controlled by a single handlever. On the machine bed supporting the grinding-wheel 17 is mounted, on a bracket 20, an angularly adjustable bracket 22 carrying a housing 26 slidable on ways 25 by means of a piston 29 movable in a cylinder 28 under the control of a valve 36 movable by a lever 45 pivoted on a shaft 43; fluid is supplied by an inlet 37 and passes by conduits 31, 32 to the cylinder, and by an outlet 40 to exhaust. The exhaust from the cylinder passes through a valve 49 carried by a spring-pressed stem 50 and adjustable to vary the minimum opening, the stem being engaged by a lever 61 adapted to be moved, to open the valve, by a pin 62 movable by inward movement of the lever 45 on its pivot. By movement of the lever, the direction and speed of the movement of the piston 29 may be controlled. The trueing diamond &c. 65 is carried by a plunger 64 movable in the housing 26 by a screw 68 adjustable either by a hand-wheel 71 or by a ratchet 79 moved by a pawl 77 pivoted on a gear wheel 75. The wheel is moved by rack teeth 87 on a piston 86 in a cylinder 85, which receives fluid from the conduits 31, 32 when the valve 36 is operated to move the piston 29, so that the tool 65 is fed at the beginning of one of the strokes of the tool across the wheel. The stroke of the piston 86 is determined by screws at the ends of the cylinder 85 and the pawl is held raised on the return stroke by an adjustable screw, which engages the rear end of the pawl.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 7. 发明专利
      GB357621A Improvements in internal centerless grinding machines 未知
    • Improvements in internal centerless grinding machines
    • GB357621A
    • 1931-09-18
    • GB1866430
    • 1930-06-18
    • CINCINNATI GRINDERS INC
    • B24B5/18
    • 357,621. Centreless grinding. CINCINNATI GRINDERS, Inc., 3058, South Street, Cincinnati, Ohio, U.S.A. June 18, 1930, No. 18664. Convention date, June 28, 1929. Addition to 290,999, [Class 60, Grinding or abrading &c.]. [Class 60.] Round holes, enlarging and trueing ; gauges ; guides and rests; spindle mountings.-A centreless grinding-machine for internal grinding comprises a base 30 having ways 31, 32 thereon, the ways 31 carrying a carriage 33 having mounted thereon a grinding-wheel 37 driven by an electric motor 34, the carriage being reciprocated by a piston 38 hydraulically actuated within a cylinder 39. On the ways 32 is mounted a table 43 movable by a piston 135 in a cylinder 136, and movable on transverse ways on the table is a slids 46 having thereon an angularly adjustable swivel table 49. This table carries in a bracket 53 a regulating-wheel 56, driven through worm and bevel gearing, from a shaft 66. The slide 46 is moved to feed the work to the grinding-wheel by a cam 47 engaging a follower 48 on the slide, the movement taking place against a constant pressure in a cylinder 70 urging a piston rod 72 against a sleeve 60 of the table 49. On the table 49 also is a work-rest bracket 73 carrving a rest 74 for the work 44, which is held against the regulating-wheel by a pressure roll 75 mounted on an inclined axis in a yoke 78 carried by a sleeve 77 in bearings in a bracket 76 ; the roll is urged against the work by a spring pressed plunger acting on an arm secured to the sleeve. Within the sleeve is a shaft 90 carrying a gear sector 89, which actuates an ejector arm 92 carrying a finger 94 adapted to engage and lift the finished work-piece, this, during its upwards motion, engaging a detent 98 to release another work-piece from a hopper 99. The ejector mechanism is brought into action by the operation of a gauge consisting of a diamond or other point 113 carried by an arm 112 on a shaft 111, which is rotatably urged by a spring, a plunger, and rack gearing 118, the point 113 being able to move upwards to allow rotation of the shaft 111 only when the work is to size, and when such rotation takes place a switch is closed by a cam on the shaft. The shaft is carried by a housing 109 and is moved axially during removal and replacement of a work - piece by mechanism acting in timed relation to the operation of the ejector ; motion of the shaft 90 is produced by a piston 102 in a cylinder 103. Adjustment of the work and movement thereof to compensate for wear of the grinding-wheel may be effected manually by means of a screw 168 engaging a nut 169 carrying the follower 48, and may also be effected automatically, through gearing 178, 177, 182, 183, 185 and adjustable ratchet gearing, by movement of a piston 131 which moves the cam 47. The movements of the work &c. are controlled by valves actuated by solenoids the circuits of which are closed by switches actuated by the movements of the parts, and the cycle of operations of the machine is as follows. The grinding-wheel table 33 is put into reciprocation by movement of a handle 40 and continues the reciprocation by the action of dogs 42 which move the handle at the ends of the strokes of the table. A work-piece 44 is placed on the rest 74 and pressed by the roller 75 against the regulating-wheel 56, and also, by the inclination of the roller axis, against a stop 80a. A handle 195 is then moved to cause the carriage 43 to move towards the grinding-wheel, and when the work is in grinding position, a dog 126 contacts with a rock arm 124 to stop that movement by the opening, through a link 125, of a switch in the circuit of the solenoid of the appropriate valve. Another switch is simultaneously closed, and through its solenoid causes movement of the workcarriage until the work is ground to size. The gauge then moves and initiates the retraction of the work, removal of the gauge from operative position, ejection of the work, and replacement thereof, when the cycle commences again. The work is cooled by fluid supplied from a pipe containing a valve operated by a stem only to supply fluid during actual grinding operations. Specification 357,622 is referred to.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 8. 发明专利
      FR699800A  未知
    • FR699800A
    • 1931-02-19
    • FR699800D
    • 1930-07-04
    • CINCINNATI GRINDERS INC
    • B24B5/22 , B24B5/35
    • 358,108. Centreless grinding. CINCINNATI GRINDERS, Inc., 3058, South Street, Cincinnati, Ohio, U.S.A.- (Assignees of Binns, G. W. ; 3555, Edwards Road, Oakley, Cincinnati, Ohio, U.S.A.) July 4, 1930, No. 20362. Convention date, July 5, 1929. [Class 60.] Bevelling. -A centreless grinding-machine for grinding bevelled ends and a central groove on rollers, consists of a bed 10 having mounted thereon in a head 11 three grinding- wheels 12a, 12b, 12c, and in an adjustable head 14, a regulating- wheel 15. The work-pieces 38 are fed from a trough 52 to a guide formed by members 32 .. 37 carried by a bracket 19 on the slide 13 of the regulating-wheel. The work-pieces are fed downwards through the grinding-throat by two similar cams 21, 22 driven by chain gearing from a motor 28, and, after grinding, enter slots 43 in the cams, from which they fall into a discharge shoot 47. Before the work-pieces enter the throat, they are guided by a bar 48 and a weight-pressed pivoted bar 49 ; during the grinding, they are centralized by the end grinding-wheels 12a, 12b.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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