34results about How to "Reduce motion load" patented technology

A positioning mechanism including a rotary stage and a linear motion stage is contained in a vacuum chamber and a pipe is connected to the positioning mechanism from the outside of the vacuum chamber.A space extending below the positioning mechanism is formed in the vacuum chamber. The pipes connecting the positioning mechanism and a vacuum partition wall to each other are so disposed in a generally U-shape that the pipes can be deformed in correspondence with the movement of the linear motion stage without contacting with the inner wall of the vacuum chamber in the space.

The invention discloses a KC test stand driving loading device comprising a vertical motion platform which is connected with a vertical driving mechanism and can be driven and loaded by the vertical driving mechanism to realize vertical motion, and a longitudinal, lateral and rotary motion driving platform which is arranged on the vertical motion platform. The longitudinal, lateral and rotary motion driving platform is respectively hinged with the power output members of three linear motion driving mechanisms via three driving connection points which are triangularly arranged on the longitudinal, lateral and rotary motion driving platform. The longitudinal, lateral and rotary motion driving platform is driven to perform translational motion along an x-axis and y-axis or rotary motion around a z-axis on the plane via linkage driving control of the three linear motion driving mechanisms. The invention also discloses a corresponding driving loading method and an application thereof. Accurate loading of a KC test stand can be realized so that error is low, motor power in a driving single-axis direction is relatively low, and more importantly, high-efficiency and accurate transmission can be realized in rotary loading and acting force and moment measurement is simple and accurate.

The invention discloses an automatic base plate for a vacuum forming machine worktable. The automatic base plate comprises a base plate, a plurality of supporting units arranged on the base plate, and at least one manipulation robot, wherein each supporting unit comprises a supporting seat and a supporting rod which is arranged in the supporting seat and can move up and down; the supporting rod can be stopped and supported at a lifting position when the supporting rod moves upwards so as to form a lifting state, and when the supporting rod moves downwards, the supporting rod can be stopped and supported at a descending position so as to form a descending state; the manipulation robot is a movable trolley and comprises a frame, a traveling device, and a lifting device, a positioning device and a controller which are arranged on the frame; the lifting device comprises a lifting frame and a lifting motor; an operation head is arranged on the lifting frame; and the operation head acts on the supporting rod and lift up or put down the supporting rod to an ascending position or a descending position along with the lifting frame. According to the automatic base plate, the state of the supporting units can be actively changed, and the automatic base plate has the advantages of simple structure, light weight and the like.

The invention relates to a high definition continuous zooming pick-up lens capable of rapidly switching field of view at low temperature. The pick-up lens is provided with along the light incoming direction: a front fixed lens group having a positive focal power, a zoom lens group having a negative focal power, a compensation lens group having a positive focal power, and a rear fixed lens group having a iris diaphragm and a negative focal power; the front fixed lens group is provided with a double-convex lens, a positive meniscus lens and a first gluing group which is composed by sealing a negative meniscus lens and a second positive meniscus lens; the zoom lens group is provided with a second gluing group which is composed by sealing a second negative meniscus lens and a second double-convex lens and also a double-concave lens; the compensation lens group is provided with a third double-convex lens, a third gluing group which is composed by sealing a third negative meniscus lens and a fourth meniscus lens, and also a third positive meniscus lens; the rear fixed lens group is provided with a double-concave lens, a fourth positive meniscus lens, a planoconvex lens, and a fourth gluing group which is composed by sealing a third double-concave lens and a fifth double-convex lens. The pick-up lens enables rapid switching at low temperature.

The positioning mechanism includes following parts ad connections: bent plate is fixed on a side of machine foundation, base of No.1 motor and base of No.2 motor are fixed on the foundation; one end of No.1 connecting rod is hinge-jointed to bent plate, and another end of No.1 connecting rod is connected to one end of No.3 and No.4 connecting rods respectively; one end of No.2 connecting rod is hinge-jointed to output end of No.1 motor, another ends of No.3 and No.2 connecting rods are hinge-jointed to output module from upper to lower respectively. The invention also contains No.5 connecting rod, and other connections etc. Rectilinear motion module is fixed to output module. Advantages are: compact structure, high positioning accuracy, and good dynamic performance.

A water cooled roller for preparing the quickly solidified thin metal band is composed of a hollow main shaft with cooling water inlet and outlet, a roller body with internal cavity divided by a water isolating plate into water outlet cavity and water returning cavity, and roller body's bearings between said roller body and mainshaft.

The invention relates to a virtual-axis millimeter-wave human body security check system. The system comprises a virtual-axis guide rail unit, a scanning unit, a scanning driving unit, a data processing unit and a display unit, wherein the virtual-axis guide rail unit comprises a first circular-arc-shaped guide rail; the scanning unit comprises a first group of millimeter-wave antenna arrays and a first millimeter-wave transceiver; the scanning driving unit is used for driving the first group of millimeter-wave antenna arrays to scan in a reciprocating virtual-axis circular-arc-shaped locus on the first circular-arc-shaped guide rail; the data processing unit is used for processing a detection signal from the scanning unit to form a human body image to be detected; the display unit is used for displaying the at least one human body image to be detected. In the human body security check system disclosed by the invention, a virtual-axis scanning way is used, the motion load does not need to be reduced, and the rotational inertia is reduced, so that the scanning speed is increased. The system is small in occupied space, and a single / double-module security check system can be assembled more flexibly according to the size of a practical space and the checked amount.

The invention belongs to the field of bearing tools on light rails, and in particular discloses a device for fixing a trunk. The device comprises an annular track, walk trolleys and a power device which are fixed on the carriage wall of a light rail vehicle, wherein each walk trolley comprises a bearing basal body, a drive gear, and a sucker used for fixing the trunk; the annular track comprises a left vertical track section, an upper horizontal track section, a right vertical track section, a lower horizontal track section and an arc-shaped track section; an oblique support plate is mounted on the carriage wall of the light rail vehicle just below the upper horizontal track section; a plurality of touch rods arranged at equal distances are mounted on the carriage wall of the light rail vehicle between the upper horizontal track section and the oblique support plate, an electromagnet block with the magnetic pole being opposite to that of a permanent magnet block is further mounted on the carriage wall of the light rail vehicle, and a gravity sensor is mounted on the oblique support plate; the power device comprises a drive motor, a drive power supply and a controller which are connected through leads. After the scheme is adopted, the problems that trunks can not be conveniently placed on the existing light rails, and the trunks can be easily damaged are solved.

A label rolling and sticking apparatus is composed of label sticking unit, transmission unit for driving said label sticking unit, label rolling unit under said label sticking unit, label conveying unit at the side of label rolling unit, label-sucking sleeve pipe in the label feeding die under said label sticking unit, label-sucking mandrel in said label-sucking sleeve pipe, and shaping die sleeve above label feed die and surrounding said sleeve pipe.

The invention discloses an immersion liquid flow field maintenance anti-collision system for an immersion photolithography machine, which is characterized in that it includes: a liquid supply device for providing liquid between a projection objective lens and a base table; a base located on the base table and immersed in the liquid; a buffer telescopic device, the buffer telescopic device is located between the liquid supply device and the base, is used to realize the sealing of the liquid, and can move in the direction of the optical axis.

The invention discloses a distributed rapid precise plane six-degree of freedom pose measuring device and a measuring method and belongs to the technical field of semiconductor fabrication equipment, and particularly relates to the distributed rapid precise plane six-degree of freedom pose measuring device. According to the distributed rapid precise plane six-degree of freedom pose measuring device, laser diodes are introduced to serve as light sources and two-dimension Phase-Sensitive Detectors (PSDs) are introduced to serve as photoelectric elements. The light source portion and the two-dimension PSDs are integrated, and therefore the size is reduced, the weight is lightened, and installation is convenient. In addition, three cube-corner prisms are arranged on a motion platform, and therefore motion load of the motion platform is reduced. To sum up, the distributed rapid precise plane six-degree of freedom pose measuring device is simple in structure and very appropriate for six-degree of freedom pose measurement on the high-speed motion platform. According to the distributed rapid precise plane six-degree of freedom pose measuring device, the cube-corner prisms arranged on the platform to be measured serve as position sensing elements, a three-dimensional coordinate system formed by the cube-corner prisms and the PSDs is converted into a motion coordinate system of the platform to be measured through transformation of coordinate systems, and therefore six-degree of freedom information can be obtained. And therefore the measuring method is easy and convenient to operate and adjustment of light paths is easy.