Clamping device
A clamping device and clamping arm technology, which is applied in the field of clamping workpiece devices, can solve the problems that the rack cannot be stopped in time and the screw transmission efficiency is low, and achieve the effect of compact combined structure and high clamping precision
Active Publication Date: 2012-07-11
POSITEC MACHINERY ZHANGJIAGANG +1
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Problems solved by technology
The common clamping device uses a screw transmission mechanism to move the two jaws relative to each other, but the screw transmission efficiency is low; some clamping devices use a rack and pinion to move the two jaws relative to each other. The distance between the two jaws must be adjusted in both directions, that is, the gear must make the rack move in both directions, then the rack can also drive the gear in the opposite direction. When the distance is adjusted to an appropriate position, the gear stops rotating. Keep moving for a certain distance, and the movement of the rack will drive the gear to rotate, and the rotation of the gear will affect the position of the rack. Therefore, it cannot be guaranteed that the rack will stop in time when it moves to an appropriate position. For this reason, an additional The brake device stops the rack from moving
Method used
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[0030] see figure 1 and figure 2 A clamping device 100 provided in this embodiment includes a housing 22, and a power unit is arranged in the housing 22. The power unit in this embodiment includes a motor, a power source (not shown) for driving the motor and a positive motor for controlling the motor. The reverse switch 24, the forward and reverse switch 24 is arranged on the housing 22, the two ends 241, 242 of the forward and reverse switch 24 can respectively control the forward rotation and reverse rotation of the motor, and the forward rotation and reverse rotation of the motor are made by the transmission assembly. The first clamping arm 2 and the second clamping arm 4 are relatively close to or apart from each other, so that the workpiece can be clamped or released.
[0031] image 3 and Figure 4 The transmission assembly of this embodiment is shown, and the transmission assembly includes a worm 14 , a worm wheel 12 , a gear 10 and a rack 6 . The worm 14 is connec...
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The invention relates to a clamping device, which can apply pressure to a workpiece so as to clamp the workpiece and comprises a first clamping arm, a second clamping arm, a transmission component and a power unit. The second clamping arm is opposite to the first clamping arm, the transmission component drives the first clamping arm to move relative to the second clamping arm and consists of a rack and a gear, the rack is connected with the first clamping arm, the gear drives the rack, the power unit is used for driving the transmission component, and the transmission component further comprises a worm gear and worm assembly which is driven by the power unit and can drive the gear. The transmission component consists of the worm gear and worm assembly which is in transmission with the gear so as to be in transmission with the rack further, the worm gear and worm assembly realizes one-way transmission, accordingly, the first clamping arm and the second clamping arm can be driven to stop moving relatively without an extra brake device, and clamping precision is high. In addition, a combined structure consisting of the gear and the worm gear and worm assembly is compact, transmission efficiency is high, and simultaneously, the volume of the clamping device can be effectively reduced.
Description
technical field [0001] The invention relates to a device capable of exerting pressure on a work piece so as to clamp the work piece. Background technique [0002] Clamping devices are currently used in many fields, including mechanics, woodworking, etc. The clamping device generally includes a fixed jaw, a movable jaw, and a transmission mechanism that moves the two jaws relative to each other. The common clamping device uses a screw transmission mechanism to move the two jaws relative to each other, but the screw transmission efficiency is low; some clamping devices use a rack and pinion to move the two jaws relative to each other. The distance between the two jaws must be adjusted in both directions, that is, the gear must make the rack move in both directions, then the rack can also drive the gear in the opposite direction. When the distance is adjusted to an appropriate position, the gear stops rotating. Keep moving for a certain distance, and the movement of the rack ...
Claims
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Login to View More IPC IPC(8): B25B5/02B25B5/06
Inventor 沃伦・布朗哈利・索默格雷厄姆・格哈德
Owner POSITEC MACHINERY ZHANGJIAGANG