45results about How to "Small shape error" patented technology

The invention relates to household paper packaging equipment, and particularly relates to an automatic continuous household paper packing machine. The machine comprises a rack, a negative pressure system, a packaging film opening and conveying device and a burn-seal device. The machine is characterized in that a support shaft is fixedly arranged on the rack; a disc-shaped mould is hollowly sleeved on the support shaft; a household paper feed device, the packing film opening and conveying device and a packing film cutting device are arranged on one feed side of the disc-shaped mould; the burn-seal device is arranged on the upper part of the disc-shaped mould; a household paper packing and clamping device is arranged on the disc-shaped mould; and the disc-shaped mould is driven by a drive system to rotate. According to the technical scheme, the machine is reasonable in structure, external dimension errors and shape errors of the packaged household paper subjected to burn-seal are small, and the quality of a burn-seal surface is good, so that packing machine is very suitable for automatic packaging production line.

The invention relates to the technical field of manufacturing processes of window type irregular saddle-shaped coils for compound function electromagnets, in particular to a winding device and method of a window type irregular saddle-shaped coil. The window type irregular saddle-shaped coil comprises step components which are unfolded with two 90-degree flanges on two edges and used for controlling gaps among copper wires of each layer at the 90-degree flanges, the upper edges of wire cakes on each layer are guaranteed to be flush on the same plane after flanging, the step component at one end is horizontally divided into three parts, and gaps are reserved in the middles and used for accommodating copper wire heads, the three parts are fixed on a base plate through locating pins and bolts respectively. A 90-degree back plate is located above the step component with coils unfolded at two ends and used for unfolding two ends of each wire cake to vertical positions layer by layer through a special tool after layer winding, and a saddle shape is formed. The internal quality is good, the performance is reliable, the winding efficiency is high, the cost is low, the boundary dimension and the shape error are small, the stability is excellent, the product consistency is good, the performance of a whole compound electromagnet is modified and improved, the magnetic field index is stable, and the error is small.

The invention discloses a method for preparing indentations of a surface of a micro-lens or micro-lens array structure. The method comprises the steps of: manufacturing an indenter with an end having the micro-lens shape; performing smooth machining of the to-be-shaped surface of the micro-lens or micro-lens array structure; on a forming press, machining by the indenter with the speed as s and the pressure as m according to the indentation method to form lens-shaped indentations on the surface to be shaped; measuring and calculating the error between the indentation shape and the lens shape of the end of the indenter and compensating or modifying the shape of the indenter; carrying out indentation formation again by using the indenter which is already subjected to shape compensation or modification; if it is required to form the micro-lens array structure, setting the vertical and horizontal distances based on the working performance of the lens array, machining with the vertical and horizontal distances as the distance close to the lens center to generate other indentations on the mould plane and forming the micro-lens array structure; and cutting off the material bump parts generated during the indentation extrusion process and performing coating. The method simplifies the procedures of the batch treatment process for the surface of the micro-lens or micro-lens array structure.

A method is provided for forming a functional film having at least first and second functional materials arranged in accordance with a prescribed coating pattern on a substrate. The method includes discharging the first functional material having a smaller coating surface area than the second functional material according to the prescribed coating pattern onto the substrate using a droplet discharge apparatus, and discharging the second functional material according to the prescribed coating pattern onto the substrate using the droplet discharge apparatus after the first functional material is discharged onto the substrate.

The invention relates to a processing device with band shape blade and a bender and two sets of punch device. The first set of punch die is set in front of the bender, the second set behind. The first set can have different punch die structure, and the second has a structure with band blade bottom end. When the distance between the bender and the second punch die is long, it can be rectified by the rectifier between the bender and the punch die. The manufacturing for the band shape blade comprises the bending and cutting the blade into two parts. When the material band blade is fed in throughthe first punch die, the top of the punch cut out the required precision and shape notch, then the strip shape blade is fed into the bender for bumping to form the band blade connected with the stripblade. Then, send to the second punch die to cut off the bottom end of the strip blade to the final product. Return the strip blade to the bender after the band blade is separated from the strip blade and recycle it again and again.

The invention discloses a precise curved-surface grinding method for a grinding wheel with any curved surface. The precise curved-surface grinding method comprises the steps of 1 trimming the grinding wheel, namely trimming the grinding wheel with a corresponding contour curved surface on a grinding stone according to a pre-designed contour curved surface of the grinding wheel, 2 compensating a grinding wheel contour, namely obtaining an actual curved-surface contour of the grinding wheel by detecting an actual contour detection point of the grinding wheel, 3 planning a cutter track, namely gradually looking for a point of contact to obtain cutter track points according to the principle that a normal vector of the actual contour curved surface of the grinding wheel and a normal vector of the free curved surface of a machined workpiece are collinear at the position of the point of contact and then planning the cutter track for curved-surface grinding through a cutter track point cloud, and 4 adopting an axial grinding mode to grind the workpiece according to the cutter track. Compared with the prior art, single-point contact machining of the cutter can be avoided, the abrasion rate of the grinding wheel can be reduced, the shape accuracy of curved-surface machining is greatly improved through contour compensation, and a curved-surface shape error can be reduced by about 50%.

The invention relates to a method and a device for detecting a turntable radius and installation eccentricity four-rotation-position coordinate increments. A rotating shaft of a tested turntable component is fixed on a standard turntable, a circumferential eccentric rotation position fixed point coordinate increment equation set of each point of four rotation positions is established, the equationset is solved to obtain a central deviation coordinate of the turntable at an initial rotation position, and the turntable radius, the installation eccentricity and the central deviation of the turntable at any rotation position are calculated. The device is simple and practical and is easy to operate; the proposed method is simple, convenient, high in precision and is easy to implement, efficient and high-precision measuring device and method are provided for the size and error detection of turntable components, and reference is provided for the fine tuning of the concentricity of the turntable components. The method and device provided by the invention are suitable for the size and eccentricity error detection of the turntable components such as a circular grating, a mechanical modulation disk, a coded disk of a photoelectric encoder, and the like, and are especially suitable for the detection in which the eccentricity error of the turntable is relatively small, and the size and shape errors are much smaller than the eccentricity error.

The invention relates to the technical field of the technologies for manufacturing ion beam deflection electromagnets-four-channel special-shaped deflection magnets, in particular to a method for manufacturing a vacuum special-shaped deflection magnet with four internal channels. The method for manufacturing the vacuum special-shaped deflection magnet with the four internal channels comprises the steps that the periphery, the upper surface and the lower surface of a left magnet body, the periphery, the upper surface and the lower surface of a right magnet body and the periphery, the upper surface and the lower surface of a middle magnet body are respectively machined, and oblique planes of the three magnet bodies are machined on a large CNC machining center; with the bottom surfaces of the magnet bodies as the criterion, coil grooves are machined in the three magnet bodies respectively on the large CNC machining center; the machined magnet bodies are preassembled; a coil is wound around a machined coil winding die; epoxy vacuum pouring is conducted on the coil; the coil is packaged in a vacuum box after epoxy vacuum pouring is completed; helium mass spectrometer leak detection is conducted on the vacuum box containing the coil, wherein the vacuum degree reaches 1*10<-8> Pa, and the vacuum leak rate is not higher than 1*10<-9>Pa.L / S; the vacuum box, containing the coil, judged to be qualified through leak detection and an iron core are assembled together, and magnetic field testing is conducted. According to the method for manufacturing the vacuum special-shaped deflection magnet with the four internal channels, the magnet manufactured according to the method is simple in structure, assembly is easy and fast, adjustment is convenient, the machining precision is high, and the boundary dimension error and the shape error are small.

The invention discloses a production method for a stainless steel round-link chain. The production method mainly comprises the following steps: selecting raw materials; blanking; performing hot chain weaving; performing shot blasting; performing flash butt welding; stretching and correcting; pickling; inspecting. The production method adopts a high-efficiency, automatic and assembling-line mode; the welding performance and the size precision of a product are ensured by a flash butt welding sequence, so that the appearance error of the product is small, and the product quality is ensured; after pickling treatment is adopted, so that stainless steel large-diameter round-link chain products of Phi 20X100, Phi 26X100 and Phi 30X120 are excellent in corrosion performance; the production method is more suitable for conveying work of high-corrosion chemical solution, such as hydrochloric acid.