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    Speed change control mechanism of a vertical milling machine
    1.
    发明授权
    Speed change control mechanism of a vertical milling machine 失效
    立式铣床变速控制机构

    公开(公告)号：US5567094A

    公开(公告)日：1996-10-22

    申请号：US563975

    申请日：1995-11-29

    申请人： Liao Y. Chung

    发明人： Liao Y. Chung

    IPC分类号： B23Q5/16 ,  F16H55/56 ,  F16H61/662 ,  B23B39/00 ,  F16H7/00

    CPC分类号： B23Q5/162 ,  F16H55/56 ,  F16H61/662 ,  Y10T408/67 ,  Y10T409/306664

    摘要： A speed change control mechanism including a motor for power output, a main shaft, a belt transmission mechanism driven by the motor to turn the main shaft, a gear box disposed at one side of the main shaft, the gear box comprising a gear shaft, a small gear slidably mounted around the gear shaft and stopped from rotary motion relative to the gear shaft, the small gear being moved into engagement with a big gear which is fixedly mounted around the main shaft, wherein a bearing means is fixedly secured to the small gear, a rack is fixedly mounted on the bearing means and meshed with a toothed shaft, the toothed shaft being rotated to move the small gear between the operative position, in which the small gear is engaged with the big gear of the main shaft for permitting the output power of the motor to be transmitted through the gear box to the main shaft for a low-speed milling operation, and the non-operative position, in which the small gear is disengaged from the big gear of the main shaft for permitting the output power of the motor to be transmitted through the belt transmission mechanism for a high-speed milling operation.

    摘要翻译： 一种变速控制机构，包括用于动力输出的电动机，主轴，由电动机驱动以转动主轴的带传动机构，设置在主轴一侧的齿轮箱，齿轮箱包括齿轮轴， 小齿轮可滑动地安装在齿轮轴周围并相对于齿轮轴停止旋转运动，小齿轮被移动成与固定安装在主轴周围的大齿轮接合，其中轴承装置固定地固定到小齿轮 齿轮，齿条固定地安装在轴承装置上并与齿形齿轮啮合，齿轮转动以将小齿轮移动到小齿轮与主轴的大齿轮啮合的操作位置之间，以允许 电机的输出功率通过齿轮箱传递到主轴进行低速铣削操作，以及非操作位置，其中小齿轮与主齿轮的大齿轮脱离 轴，用于允许电动机的输出功率通过带传动机构传递用于高速铣削操作。

    Machine tool speed control system
    2.
    发明授权
    Machine tool speed control system 失效
    机床调速系统

    公开(公告)号：US4209273A

    公开(公告)日：1980-06-24

    申请号：US869468

    申请日：1978-01-16

    申请人： Peter E. Lehnen

    发明人： Peter E. Lehnen

    IPC分类号： B23B47/02 ,  B23Q5/16 ,  B25J9/18 ,  G05B19/416 ,  B23B39/00

    CPC分类号： B23Q5/167 ,  G05B19/416 ,  G05B2219/43134 ,  G05B2219/50168 ,  G05B2219/50249 ,  Y10T408/165 ,  Y10T408/67

    摘要： This invention relates to a retrofit system for automatically selecting and continuously controlling the rotational speed of a typical machine tool. A plurality of sensors are provided adjacent to the storage receptacles for each of the tools or tool holders. When a tool is removed from the storage location, a pre-set speed reference signal is generated responsive thereto for controlling the rotational speed of the machine tool. A rotational speed sensor may also be included for continuously correcting the rotational speed of the machine tool for speed variations due to loading, voltage variations, etc.

    摘要翻译： 本发明涉及一种用于自动选择并连续控制典型机床的转速的改造系统。 多个传感器被设置成与用于每个工具或刀架的存储容器相邻。 当从存储位置移除工具时，响应于此产生预设速度参考信号以控制机床的转速。 还可以包括转速传感器，用于连续校正机床由于负载，电压变化等引起的速度变化的转速。

    Drill press or like variable speed drive
    3.
    发明授权
    Drill press or like variable speed drive 失效
    钻机或类似变速驱动器

    公开(公告)号：US3718405A

    公开(公告)日：1973-02-27

    申请号：US3718405D

    申请日：1971-06-29

    申请人： ROCKWELL MFG CO

    发明人： KEITER E ,  PFLEIDERER G ,  PETTIGREW D

    IPC分类号： B23B47/16 ,  B23Q5/16 ,  B23B47/14

    CPC分类号： B23Q5/16 ,  B23Q5/162 ,  Y10T408/67 ,  Y10T408/6779

    摘要： A vari-speed pulley drive transmission for overarm machine tools, such as drill presses and similar tools having depending tool spindles, and speed selector control means and spindle return spring tension adjustment means therefore. The speed selector control means is characterized by the inclusion therein of a selector knob and adjustable friction drag means accessible to an operator standing in operating position in front of the machine tool and eccentric pin connector means journalled in a shifter ring carried by the shiftable sheave of the driven varispeed pulley and providing a pin and slot connection with the shifter lever for calibrating the speed of the vari-speed pulley drive with the selector knob and its associated speed scale graduations.

    摘要翻译： 因此，用于超速机床的变速轮驱动变速器，例如钻床和具有悬挂工具主轴的类似工具，以及速度选择器控制装置和主轴复位弹簧张力调节装置。 速度选择器控制装置的特征在于其中包括选择器旋钮和可调节的摩擦阻力装置，其可操作者站在机床前面的操作位置，并且偏心销连接器装置被安装在由可移动的滑轮 驱动变速皮带轮，并提供与换档杆的销和槽连接，用于通过选择旋钮及其相关的速度刻度来校准变速滑轮驱动器的速度。

    Rotary tool spindle reversing means
    7.
    发明授权
    Rotary tool spindle reversing means 失效
    旋转刀具主轴反转装置

    公开(公告)号：US2887695A

    公开(公告)日：1959-05-26

    申请号：US76895358

    申请日：1958-10-22

    申请人： BROWN & SHARPE TURRET DRILLING

    发明人： ARNOLD CHARLAT

    IPC分类号： B23B39/20 ,  B23B47/02 ,  B23Q5/04 ,  B23Q5/16 ,  B23Q15/00 ,  B23Q16/00 ,  B23Q39/02 ,  F16D19/00

    CPC分类号： F16D19/00 ,  B23B39/205 ,  B23Q5/041 ,  B23Q5/16 ,  B23Q15/00 ,  B23Q16/006 ,  B23Q39/02 ,  B23Q2220/002 ,  Y10S408/71 ,  Y10T29/5179 ,  Y10T74/14 ,  Y10T408/165 ,  Y10T408/37 ,  Y10T408/60 ,  Y10T408/67 ,  Y10T408/6757 ,  Y10T408/70 ,  Y10T408/91

    摘要： 764,671. Drilling-and-tapping machines. HOWE & FANT, Inc. Feb. 21, 1955 [March 18, 1954], No. 5108/55. Class 83 (3). [Also in Groups XXIV and XXXVII] A machine tool, particularly a drilling machine, comprises a spindle 26 rotatable in a quill 23, a turret 58 carrying tool-spindles 69, means 33-36, for driving the spindle 26 at different speeds, stops 96 for limiting the feed of spindle 26, and means, operated by indexing the turret, to make effective the stop 96 for the appropriate tool-spindle and to adjust the driving means to a pre-selected speed for the latter tool-spindle. The spindle 26 is rotated by a variable-speed belt gearing 33, 34, 36 driven by a three-phase, reversable electric motor 35 having low- and high-speed windings energized selectively by the setting of a dog 52, Fig. 4, for each tool spindle. The dogs are carried by a gear 49 and trip a lever 56 (Fig. 3, not shown) when the high-speed winding of the motor is used. The ratio of the belt-gearing is varied by changing the distance between the driving-discs 34 on the motor shaft by stop screws 47 carried by a disc 46 on the piston-rod of a pneumatic-jack 40 which supports the lower disc 34 in a bearing housing 37 carried by a yoke 38. The stop-screw 47 for the tool spindle in operative position abuts a plug 50 in the gear 49 to set the spacing of the discs 34, the other stop-screws entering passages in the gear which may be rotated to align the plug 50 with another of the stop-screws following withdrawal of the screws by jack 40. A valve 43 supplying the jack 40 is operated to withdraw the stop screws through contact between its plunger 43a and the turret as the latter is raised for indexing and bears against the spindle-head 22a. In this position, a tang 81, Fig. 11, on a shaft 79 carrying a gear 80 meshing with a ring-gear attached to the indexable part 68 of the turret, engages a socket 82 in a shaft 83, Fig. 2, carrying a gear 85 meshing with a gear 86 rotatable on the sleeve 23 and forming the lower member of a cage, the bars of which are threaded for the feed stops 96 and the top 98 supports switch-operating dogs 99. Rotation of the part 68 during indexing of the turret rotates the cage 86, 95, 98 and the gear 49, through an intermediate gear 105, to adjust the drive speed and position the stop for the operative tool-spindle, a spring-pressed ball 93 entering a slot 86d and a pin 92 on the sleeve 23 entering one of the passages in the bore of the gear 86 when the turret is correctly indexed. The tool-spindles 69 are mounted for self-alignment in the turret on spherical seatings 74, and the turret, which is supported on a spring 60 resting on a collar 59 fixed to the bottom of the sleeve 23, is raised by a rack-andpinion 24 assisted by a balance-weight on a cable 118. The feed-stops 96 co-operate with a projection 29a, Fig. 1, carried by the sleeve 23, and rotation of the turret is prevented by a bar 84 in the spindle head 22a. A motorswitch 111 is housed within the hub of the feedlever 110, Figs. 2 and 9, and is operated by a key 116 on the feed-shaft upon slight relative movement between the hub and the shaft, and a further switch is operated by a lever 104 disposed beneath the dog 99 in operative position and acts to reverse the motor for high-speed running. The switch operated by the lever 104, switch 111, and the contacts of a relay are connected in parallel to the coil of a further relay for reversing the motor, the control-circuit, Fig. 13 (not shown), also including the switch operated by the dogs 99 through a plunger 101, a start-and-stop switch, a switch for changing the speed of rotation of the motor and two further relays controlling high and low speed running of the motor. The motor can be reversed by turning the feed-lever to close the switch 111 and raise the machine spindle. Tapping. During tapping, the motor can continue to run after the projection 29a on the sleeve has engaged a feed-stop 96, and causes the cage 86, 95, 98 to be displaced against the influence of springs 89, Fig. 7, until a stop 91 is reached and the dog 99 in operative position actuates the switch-lever 104 and the reversing- relay to reverse the motor automatically. Energization of the reversing-relay and reversal of the motor produce a surge of current which momentarily closes the contacts of the relay in parallel with the switch operated by the lever 104 and that in the hub of the feed-lever, so that although the switch operated by lever 104 is opened as the springs 89 return the cage, the machine is protected for this short period against the motor again being reversed by de-energizing the reversing relay through opening switch 111 by turning the feed-lever in the feed direction, switch 111 having closed upon relative movement between the feed-lever and its shaft 25 caused by reversing the motor. Sockets. A socket 63, Fig. 12, for driving the tool-spindles 69 is fixed to the machine-spindle 26 by a collar 62 and a pin 64 and has a tapered bore 65 to engage the spindles 69 and spring- pressed plungers 66 which effect a positive drive in recesses 77a in the tool spindles if the drive tends to slip. Alternatively, the tool spindles may be formed with socket ends for engaging a spigot-driver on the machine-spindle.

    METHOD AND APPARATUS FOR MACHINING A WORKPIECE
    10.
    发明申请
    METHOD AND APPARATUS FOR MACHINING A WORKPIECE 审中-公开

    公开(公告)号：US20190224799A1

    公开(公告)日：2019-07-25

    申请号：US16253294

    申请日：2019-01-22

    申请人： Quantum Impact, LLC

    发明人： Randy Keller ,  J. Scott Myles ,  Colin Kelly Myles

    IPC分类号： B23Q15/12 ,  B23Q1/30 ,  B23Q5/16 ,  B23B41/16 ,  B23B39/10

    摘要： An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.