36results about How to "Improve forming accuracy" patented technology

The invention discloses a rubber forming method and a rubber forming mould of a high-curvature high-flanging sheet metal part. The rubber forming mould comprises an accommodating box, a forming die, a pressing plate, a supporting plate and rubber pads, wherein the non-working surface on the inner side of the forming die is connected to the inner wall of one side of the accommodating box; a moulding cavity is formed between the working surface on the outer side of the forming die and the inner wall of the accommodating box; the outlines of the pressing plate and the supporting plate are smaller than the outline of the moulding cavity; the inner sides of the pressing plate and the supporting plate are matched with the working surface on the outer side of the forming die. The rubber forming method comprises the following steps: placing the accommodating box on a workbench of a hydraulic machine, placing a plurality of rubber pads with equal height inside the moulding cavity, and placing the supporting plate on the upper surfaces of the rubber pads so as to make the surface height of the supporting plate consistent with the height of the forming die; overlapping the pressing plate and the supporting plate, and clamping a flanging area of an unfolded blank; downwardly pressing the pressing plate by using hydraulic forming equipment, fitting the flanging area of the unfolded blank with the working mould surface of the forming die, and forming.

The invention discloses a digital beam forming device and method of a programmable time delay circuit on the basis of an FPGA. The device comprises a programmable time delay module, a delay time control module and an accumulator. The delay time control module and the programmable time delay module are connected through a control bus, beams are output after an array antenna signal undergoes time delay through the programmable time delay module and is accumulated through the accumulator, the programmable time delay module is formed through parallel connection of programmable time delay units, each programmable time delay unit is formed through sequential serial connection of an either-or selector and a longitudinal time delay unit, each longitudinal time delay unit is formed through cascade connection of a plurality of basic time delay units, and the programmable time delay module is obtained by programmable constraint in a lookup table in the FPGA. According to the device and method, precise time delay can be carried out on the array antenna signal, waveform phase shift is achieved, signals of paths are compensated to wavefront alignment, and then the accumulator is used for accumulating signals after phase shift so as to achieve the aim that digital beams are formed without the need of a multiplier, and time delay can be accurate to a nanosecond level.

Provided are a substrate for an electronic device package, an electronic device packet, an electronic device and a method of manufacturing the electronic device, which can achieve both excellent relaxation properties and excellent dimensional accuracy. A base substrate includes a first layer which is a ceramic layer; a second layer which is disposed on one surface side of the first layer, and contains at least one of a glass layer, a silicon layer, and a quartz layer; and a concave portion that is opened on a side of the second layer opposite to the first layer. In addition, the concave portion is formed through etching.

PROBLEM TO BE SOLVED: To reduce the number of drawing and developing processes by using film reduction of a resist pattern, as well as to improve uniformity within a film plane in a film reduction rate of a resist pattern between sparse and dense pattern regions.SOLUTION: A method for manufacturing a photomask is provided, including steps of: forming a first resist pattern covering a region for forming a light-shielding portion and a region for forming a translucent portion, in which the thickness of the resist film in the region for forming a translucent portion is smaller than the thickness of the resist film in the region for forming a light-shielding portion; and reducing the film in the first resist pattern by excessively supplying ozone to the first resist pattern. Ozone is supplied in such a manner that the supply amount of active oxygen per unit area supplied to the first resist pattern is greater than the consumed amount of active oxygen per unit area consumed by the film reduction in the first resist pattern.

The invention discloses a rubber forming method and a rubber forming mould of a high-curvature high-flanging sheet metal part. The rubber forming mould comprises an accommodating box, a forming die, a pressing plate, a supporting plate and rubber pads, wherein the non-working surface on the inner side of the forming die is connected to the inner wall of one side of the accommodating box; a moulding cavity is formed between the working surface on the outer side of the forming die and the inner wall of the accommodating box; the outlines of the pressing plate and the supporting plate are smaller than the outline of the moulding cavity; the inner sides of the pressing plate and the supporting plate are matched with the working surface on the outer side of the forming die. The rubber forming method comprises the following steps: placing the accommodating box on a workbench of a hydraulic machine, placing a plurality of rubber pads with equal height inside the moulding cavity, and placing the supporting plate on the upper surfaces of the rubber pads so as to make the surface height of the supporting plate consistent with the height of the forming die; overlapping the pressing plate and the supporting plate, and clamping a flanging area of an unfolded blank; downwardly pressing the pressing plate by using hydraulic forming equipment, fitting the flanging area of the unfolded blank with the working mould surface of the forming die, and forming.

The present invention increases tire formation precision and is a tire manufacturing method, which comprises a step (S1) for forming a green tire (Tn) on the outer surface (S) of a rigid inner ring (1) and a vulcanization step (S2) for vulcanizing the green tire (Tn). The rigid inner ring (1) comprises: an inner ring body (3), which is obtained from multiple segments (4); a core (5), which substantially binds the various segments (4); and an outer diameter-adjustment means (33) for changing the outer diameter (D1) of the core (5) by changing the temperature of the core (5). Moreover, the rigid inner ring (1) performs changes such that by expansion of the outer diameter (D1) of the core (5), the various segments (4) move outward in the radial direction of the tire and gaps (G) between the segments (4) are enlarged, while by reducing the outer diameter (D1) of the core (5), the various segments (4) move inward in the radial direction of the tire and the level differences (R) on the outer surface (S) between adjacent segments (4) increase. The vulcanization step (S2) comprises an adjustment step (S21) for adjusting the outer diameter (D1) of the core (5) using the outer diameter adjustment means (33) so that the gaps (G) and the level differences (R) are within a previously established range.

The invention discloses a rubber forming method for a thin-wall reinforced panel part with a multi-encircling deep rib structure, which comprises the following steps: making a rubber forming mold for the reinforced panel part; making an unfolded blank; the first rubber hydroforming; the second rubber hydroforming; Hydraulic correction; trimming and cutting the shape. The molding die in the present invention adopts a supporting platen structure, which promotes beneficial replenishment of surrounding materials inwards, so that the original unidirectional stretching deformation of the peripheral ring material is optimized into a bidirectional compression deformation method, which solves the problem of forming and cracking of the deep rib reinforced panel. The installation and operation methods of the forming mold are simple and convenient, and the material of the support plate is not limited, and light materials such as machinable plastics are preferred, which are easy to process, low in manufacturing cost, and easy to promote and realize.

The invention provides a cutter feeding and retracting mechanism used for a pipe facing machine. The cutter feeding and retracting mechanism comprises a gear disc, a servo drive motor, a cam disc and a bevel cutter mechanism, wherein the servo drive motor drives the gear disc to rotate, the cam disc is arranged to be matched with the gear disc, and the bevel cutter mechanism is arranged on one side, deviating from the gear disc, of the cam disc. The gear disc is provided with a plurality of first cam faces arranged facing toward the direction of the cam disc, and the first cam faces are evenly arranged in the peripheral direction of the gear disc. The cam disc is provided with a plurality of second cam faces which are matched with the first cam faces and evenly arranged in the periphery direction, when the servo drive motor rotates, the first cam faces move on the second cam faces and push the cam disc to perform axial movement along a pipe to be beveled.

The invention discloses a rubber pad forming method of a concave surface semi-arc reinforced flange sheet metal part. A mold is included, the mold comprises a bottom plate, a mold body, a cover plateand an auxiliary cushioning block, the shape of the working face of the mold body is in accord with the concave surface shape of a to-be-molded metal sheet part, the shapes of the auxiliary cushioningblock and the working face of the mold body are matched, the height of the shape of the auxiliary cushioning block is lower than the mold body, the mold body and the auxiliary cushioning block are connected with the bottom plate, wools are fixed to the bottom plate, the cover plate is pressed downwards by using hydraulic molding equipment, suspended sheet materials are pressed by rubber pads to adhere to the working surface of the mold and the upper surface of the auxiliary cushioning block to form a transition work piece with an L-shaped inner flange, the transition work piece is placed on another flanging mold, and therefore the outer side flange of the transition work piece is molded.

An optical assembly, comprising: a heat sink for heat dissipation of a light source; a reflector mounting portion, a lens mounting portion, and a joint portion between the reflector mounting portion and the lens mounting portion, and the light of the light source A base part configured such that the reflector attached to the reflector attachment part reflects and enters the projection lens attached to the lens attachment part. The heat sink is exposed in a space surrounded by the lens mounting part, the coupling part, and the reflector mounting part.

The invention provides a manufacturing method of a multicolor dimming masking and a patter transfer printing method. By the invention, not only the patterning times and developing times can be reduced by utilizing the film depression of slushing compound pattern, but also the uniformity of the film depression of the slushing compound pattern between dense areas. The manufacturing method includes the steps of forming a first slushing compound pattern covering a forming area of a shading part and a forming area of a semi-transmission part, wherein the thickness of the slushing compound film in the forming area of the semi-transmission part is smaller than the thickness of slushing compound film in the forming area of the shading part; and supplying active oxygen to the first slushing compound pattern to conduct film depression to the first slushing compound pattern. And part of the active oxygen supplied to the first slushing compound pattern is consumed by an exposed semi-transmission film.

The invention discloses a digital beam forming device and method of a programmable time delay circuit on the basis of an FPGA. The device comprises a programmable time delay module, a delay time control module and an accumulator. The delay time control module and the programmable time delay module are connected through a control bus, beams are output after an array antenna signal undergoes time delay through the programmable time delay module and is accumulated through the accumulator, the programmable time delay module is formed through parallel connection of programmable time delay units, each programmable time delay unit is formed through sequential serial connection of an either-or selector and a longitudinal time delay unit, each longitudinal time delay unit is formed through cascade connection of a plurality of basic time delay units, and the programmable time delay module is obtained by programmable constraint in a lookup table in the FPGA. According to the device and method, precise time delay can be carried out on the array antenna signal, waveform phase shift is achieved, signals of paths are compensated to wavefront alignment, and then the accumulator is used for accumulating signals after phase shift so as to achieve the aim that digital beams are formed without the need of a multiplier, and time delay can be accurate to a nanosecond level.

The present invention provides a seat frame of a two-wheeled motor vehicle, which is composed of a plurality of aluminum parts manufactured by different manufacturing methods. The seat frame (SF) is composed of aluminum parts with different manufacturing methods. The front part (S1) located on the front side of the vehicle body, the middle part (S2) joined to the rear part of the front part (S1), and the middle part (S2) connected to the middle part. The rear part of the part (S2) engages the rear part (S3). The rear part (S3) is a one-piece molded fitting formed by gravity casting. The structure of the rear member (S3) includes: a pair of left and right guide rails (71), a front cross member (72) extending in the vehicle width direction on the front side of the vehicle body and connecting the left and right guide rails (71), A rear side beam portion (73) extending in the vehicle width direction and connecting the left and right rail portions (71), and a plurality of mounting bosses (80-87) for mounting other accessories. Mounting portions (90, 91) for engaging the rear end portion of the middle member (S2) are provided at the vehicle body front side end portions of the left and right guide rail portions (71).