4results about How to "High displacement accuracy" patented technology

The utility model relates to a knife sharpening technical field, and disclose an automatic knife sharpening device, including the knife rest of installation for the knife edge part of cutting knife is used to the knife sharpening assembly of grinding, the knife sharpening assembly includes the electromagnet and the knife sharpening stone of knife rest installation through the knife sharpening support, the knife sharpening stone is opposite with the knife edge part of cutting knife and is adjusted the interval of both through the electromagnet, the utility model discloses the interval of the knife sharpening stone and cutting knife is adjusted through the electromagnet, when electrifying, electromagnet core drives push rod and makes the knife sharpening stone close to the knife edge, after power off, reset under the spring action, need not stop the machine to complete grinding, can greatly shorten the knife sharpening time to improve equipment utilization and processing efficiency, and then improve actual capacity, also avoid the body injury and the dust inhalation etc. safety hidden danger brought by manual stop operation simultaneously.

The utility model discloses a kind of spraying devices of silicon-carbon rod, it is related to silicon-carbon rod processing technical field, including bottom plate, the upper end left part fixed mounting of bottom plate has spraying structure, the upper end right part fixed mounting of bottom plate has feeding adjustment assembly, the inside movable joint of feeding adjustment assembly has multiple point fixed assembly, feeding adjustment assembly includes two guide rails, the lower end of two The front position fixed mounting of right part of bottom plate lower end. The spraying device of silicon-carbon rod in the utility model, by feeding adjustment assembly, can be driven by electric cylinder driving support plate with fixed cylinder linear movement, so that fixed cylinder will its inner wall fixed silicon-carbon rod send into spraying frame and spray aluminum. Electric cylinder replaces manual adjustment, improves displacement accuracy, and also reduces the risk of manual operation. By multiple point fixed assembly, the silicon-carbon rod hot end can be fixed using the embracing type fixing method of four arc clamps, realize multiple point fixing, and have strong stability.

The embodiment of the application provides a rigid workpiece bevel exposure device, which is used for improving the precision of a laser direct writing imaging device. The rigid workpiece is driven by a harmonic reducer to perform linear stepping motion, and a light source module performs linear scanning operation in the vertical direction of the linear stepping motion, without the light source module moving in the horizontal and vertical directions at the same time, thereby avoiding vertical position errors caused by multiple scanning motions and improving the precision of exposure imaging. Secondly, the scanning motion carrier and the roller driving system are both installed on the first bevel of the base, so that the feeding and discharging are both in the form of bevel feeding and discharging, thereby avoiding the rigid workpiece occupying too large horizontal space in the horizontal direction when feeding and discharging in the horizontal direction, and saving production space. Finally, the device adopts a harmonic reducer as a transmission structure, which is small in size, light in weight and simple in structure, and the backlash of the harmonic reducer is generally within 1 arc minute, so that the high-precision stepping of the rigid workpiece can be ensured, and the imaging precision is further improved.

A micro-stage and a lithography machine are disclosed, relating to the field of semiconductor manufacturing equipment technology. The micro-stage is used on the coarse stage of a lithography machine. The micro-stage includes a moving part, a fixed part, and a driving part. The fixed part is connected to the coarse stage, and the moving part is movably disposed on top of the fixed part. The top surface of the moving part has a substrate for supporting a wafer. The driving part has a first driving member and a second driving member for relative motion. The first driving member is disposed on the side of the moving part facing the fixed part, and the second driving member is disposed on the side of the fixed part facing the moving part, so as to drive the moving part to move relative to the fixed part through the first driving member. A measurement mating part is integrally formed on the surface of the moving part, which is used to cooperate with an external measuring device to obtain the relative distance between the moving part and the fixed part. This micro-stage has a compact structure and high integration, improving space utilization and facilitating lightweighting and miniaturization.