9results about How to "Accurate positioning accuracy" patented technology

The application discloses a method for manufacturing a mask, comprising the following steps: exposing a material belt to obtain a first belt segment with a plurality of first patterns, wherein the material belt comprises a belt-shaped foil and a photoresist layer formed on the surface of the belt-shaped foil, there is a spacing area between two adjacent first patterns, and the first pattern comprises a plurality of mother mark patterns and a plurality of pixel hole patterns; and exposing a plurality of spacing areas in sequence by a processor controlling a laser to set a path, to obtain a second belt segment with a plurality of second patterns, wherein the set path matches a set pattern in the processor, the second pattern comprises a plurality of sub-mark patterns corresponding to the plurality of mother mark patterns, and an auxiliary pattern corresponding to the spacing area. The application further discloses an exposure system.

This invention provides a modular scaffold for cast-in-place box girders used in bridge construction, relating to the field of bridge construction scaffolding technology. It includes support members arranged in a row, with the first and last members of the row sequentially connected. The support members in the row have identical structures. A box girder support is installed on the upper support member. A fixing chuck is installed on the support member. A reinforcing connecting rod is installed on the fixing chuck. The reinforcing connecting rod is used to connect adjacent support members. A safety stop is installed on the support member. The safety stop ensures that during disassembly, workers can sequentially disassemble the top support bolts first, then the lower connecting rods, and finally the uppermost support rod, thus standardizing the disassembly sequence. This addresses the problem that current modular scaffolds for cast-in-place box girders used in bridge construction do not facilitate standardized disassembly procedures and increase the risk of support rod deformation.

The present invention discloses a hydraulic control system for a travel cylinder of a precision forging machine operator and a control method thereof, comprising a servo proportional control valve group, the servo proportional control valve group comprising a valve body differential valve, a servo valve, a travel back pressure regulating proportional valve and a torque control valve, the travel back pressure regulating proportional valve being connected to a pressure sensor, the torque control valve being connected to a rod chamber of a travel cylinder, the differential valve, the A port of the servo valve and the A port of the travel back pressure regulating proportional valve being connected to a rodless chamber of the travel cylinder, and the P port of the servo valve being connected to the torque control valve. In the present invention, the torque control valve and the travel back pressure regulating proportional valve continuously control the oil inlet and outlet pressure through a control system according to the rodless chamber pressure of the travel cylinder and the outlet pressure of the torque control valve collected by the pressure sensor, so as to prevent the dynamic change of the friction force between the static friction and the dynamic friction between the operator and the operator track during the low-speed operation of the operator, causing pressure fluctuations in the travel cylinder.

The utility model discloses an adjustable mold positioning inserting rod clamp, and belongs to the technical field of clamp equipment. The adjustable mold positioning inserting rod clamp comprises an I-shaped groove supporting plate, a positioning inserting rod and a positioning inserting rod, the adjustable mold positioning inserting rod clamp comprises an I-shaped groove supporting plate and a plurality of sets of positioning inserting rod clamping mechanisms, each positioning inserting rod clamping mechanism comprises a square sliding frame, two fastening plates, two fastening threaded rods, a clamping control box, a transmission threaded rod, a transmission block and two inner arc half clamping blocks, and the square sliding frames are arranged on the I-shaped groove supporting plate in a sliding and sleeving mode. The positioning inserting rods are fixed by the two inner arc half clamping blocks in each positioning inserting rod clamping mechanism, subsequent mounting of the positioning inserting rods is facilitated, the positions of the positioning inserting rod clamping mechanisms can be adjusted at will according to actual requirements, the mounting requirements of the positioning inserting rods on different molds are met, and compared with a fixed support, the flexibility is higher, meanwhile, alignment is conducted firstly, then locking is conducted, and the mounting efficiency is improved. And the operation is convenient, and meanwhile, the positioning accuracy of the positioning insertion rod during installation is high.

A reaction cup conveying device (10). The reaction cup conveying device (10) comprises an inner circular conveying plate body (100), an outer circular conveying plate body (200), reaction cup loading assemblies (300) and a driving mechanism (400), wherein the outer circular conveying plate body (200) is sleeved over the inner circular conveying plate body (100) and can rotate relative to the inner circular conveying plate body (100); the plurality of reaction cup loading assemblies (300) are arranged on a plate surface of the outer circular conveying plate body (200) at intervals; each reaction cup loading assembly (300) is provided with an embedding recess (310) for a reaction cup to be placed therein an embedded manner; and the driving mechanism (400) is connected to the outer circular conveying disc body (200) and is used to drive the outer circular conveying disc body (200) to rotate. The reaction cup conveying device (10) can implement the accurate conveying of a certain number of reaction cups, and solves the problems of the poor positioning accuracy and complex structure of the conveying of reaction cups by means of an outer annular plate body in an existing mechanism.

The utility model discloses an automatic prism laminating device which comprises a device case, and a module working face is formed on the device case. An X-axis, Y-axis and Z-axis moving mechanism is mounted on the fixed bracket; the vacuum generator is mounted on the XYZ-axis moving mechanism; the multiple sets of component attaching jigs are mounted on the XYZ-axis moving mechanism and located at the bottom of the vacuum generator; the turnover mechanism is mounted on the module working surface of the equipment case and is positioned at the bottom of the component laminating jig; and the prism main body mounting mechanism is mounted on one side of the turnover mechanism and is used for mounting a prism, and the prism main body mounting mechanism is turned over through the turnover mechanism. The full-automatic laminating machine can completely replace traditional manual laminating, is stable in operation, uses a servo and a module, is accurate in positioning accuracy, greatly improves the yield, reduces the repair times, not only improves the production efficiency, but also effectively saves the labor cost, is simple in operation, and is convenient in parameter modification.

This invention discloses a frameless coil winding device, comprising: a body, a sleeve assembly, a coating assembly, a wire cutting assembly, a winding fixture, a paper pressing assembly, a paper feeding assembly, a tape conveying assembly, and a wire clamping and wrapping assembly. The wire can be conveyed to the winding fixture via the wire clamping and wrapping assembly. When the wire approaches the winding fixture, the wire clamping and wrapping assembly can wrap the end of the wire around the surface of the annular base paper to complete the coil starting action. After the coil is wound, it can be removed from the winding fixture. This invention not only achieves continuous wire conveying and continuous automatic coating with better coating continuity and automatic completion of the wrapping and starting action, but also ensures more accurate positioning of the paper tape during winding, avoids paper tape deviation, and ensures a more even paper roll, resulting in higher overall efficiency and automation, high coil winding efficiency, and improved quality.

The utility model relates to the technical field of part measurement, and provides a part end face profile measuring device which comprises a measuring device body. The measuring device body comprises a machine base, a C-axis unit, a workbench, a two-axis moving unit and a measuring head unit. The machine base comprises a mounting platform; a C-axis unit and a two-axis moving unit are respectively arranged on the mounting platform; the C-axis unit comprises an air floating rotary table and an adjusting platform arranged on the air floating rotary table; a workbench is arranged on the adjusting platform; and a measuring head unit is arranged on the two-axis moving unit and is positioned above the working table. The device is simple in operation, and improves the efficiency and detection precision of the end face contour of the annular part.

The utility model relates to the technical field of drawing tools, in particular to a mechanical drawing device. The drawing board comprises a cabinet, the vertical line direction of a drawing platform on the cabinet serves as the main shaft direction, the drawing board capable of rotating around the axis parallel to the main shaft direction is arranged on the drawing platform, a plurality of connecting rods hinged end to end are arranged on the surface of the drawing platform, and the hinged axis of the connecting rods is parallel to the main shaft direction. A paintbrush assembly is installed on the connecting rods, at least two rotating discs which rotate around the axis parallel to the direction of the main shaft are arranged beside the drawing board, each rotating disc is eccentrically connected with the different connecting rods and drives the connecting rods to swing, and the movement track of the paintbrush assembly over the board face of the drawing board can be changed by adjusting the rotating speeds of the different rotating discs. According to the utility model, flower-growing curves with different styles and petal numbers can be conveniently and diversely drawn.