31results about How to "No scrapping" patented technology

The invention discloses an alcohol-group coating for V-method casting, wherein the coating is powdery or granulous and is formed by blending 100 parts of fire-resistant powder and 10-14 parts of composite sizing agent by weight. Meanwhile, the invention further discloses a method for preparing the alcohol-group coating for V-method casting. Compared with the prior art, the costing disclosed by the invention is powdery or granulous, so that the advantages of convenience and safety in transportation are achieved; the packaging cost is low because barrels are not required for package; the transportation cost is low because the phenomenon of sediment hardening does not occur during the transportation so as not to result in material scrap; meanwhile, the coating further has the advantages that the adhesion and bond strength of a coating layer is high, the capability of resisting metal fluid machinery and thermal shock is strong, the drying time is short, the production efficiency is high, and the sand cohesiveness resistance is excellent.

The invention discloses an error-proofing monitoring system for an automobile engine valve assembling process. The error-proofing monitoring system comprises a detection platform, a control system and a man-machine information communication panel, wherein the detection platform comprises two roller way conveying tables, three stoppers, a jacking device, a barcode scanning gun, a laser ranging sensor and a single-shaft robot; the control system comprises a single-shaft robot programming controller, a programmable controller, a data acquisition card, an industrial personal computer and a proximity switch; and the man-machine information communication panel comprises a display, a touch screen and a combined aural and visual alarm. According to the error-proofing monitoring system disclosed by the invention, after the assembly of an air valve is finished, a correct-error result is immediately obtained according to an assembling situation, and an error assembling result is classified according to error types so as to provide a maintenance prompt for a maintainer. The error-proofing monitoring system disclosed by the invention is arranged at one section of an engine assembly line and only allows correctly assembled cylinders to pass the detection and enter a subsequent continuous engine assembling process in a working mode so as to reach an error-proofing purpose.

The present invention relates to the technical field of a PCB, and particularly relates to a manufacturing method of a locally thick copper PCB. The manufacturing method comprises the following steps: A, a step of preparation; B, a step of pasting primary dry films: pasting at least two layers of primary dry films in areas on a circuit board, where thick copper does not need to be plated, and carrying out exposure and development to expose areas where the thick copper needs to be plated; C, a step of locally plating the thick copper; D, a step of taking off the primary dry films; E, a step of pasting secondary dry films; F, a step of carrying out lead etching; and G, a step of taking of the secondary dry films. According to the manufacturing method disclosed by the present invention, a phenomenon of film clipping can be effectively avoided, and a local copper thickness can be made to be 2-3 oz and even greater according to the number of film pasting times, so that the difficult problem that the local copper thickness is greatly different from other areas to result in difficult production can be effectively solved; and moreover, the method is simple in manufacturing process, can well achieve local planting of the thick copper without special control, can be used for manufacturing products in batches, and cannot generate rejections basically, thereby enabling product yield to be very high and improving product quality.

The invention discloses a disassembling clamp for an MMCX connector. The disassembling clamp comprises a left clamp unit, a right clamp unit, a rotary connecting shaft and a reset spring, wherein the left clamp unit and the right clamp unit are oppositely arranged and rotatably connected through the rotary connecting shaft. By means of the mode, the disassembling clamp for the MMCX connector can disassemble the MMCX connector easily and smoothly under the condition that a board and elements are not damaged, so that scrapping is avoided, the operation difficulty of an operator is lowered, and the working efficiency is improved.

The invention relates to a production method of an optical fiber preset core insert, which has the characteristics that the insertion loss of the optical fiber core insert in the production process can be detected by an instrument. The technical scheme is as follows: the production method of the optical fiber preset core insert is characterized by comprising the following steps: (a) horizontally fixing a ceramic core insert on a workbench of a core insert grinder; (b) sheathing a protective sleeve on a bare optical fiber which is not cut; (c) inserting the bare optical fiber into an optical fiber hole from the tail part of the ceramic core insert; (d) starting the core insert grinder to grind the end surface of the head part of the ceramic core insert and the end surface of the bare optical fiber; (e) conducting return loss test on a light guiding surface; (f) if the test result is disqualified, repeating the steps (d-e) until the test is qualified; and (g) if the test result is qualified, stripping the protective sleeve of the bare optical fiber, and taking the core insert out of the core insert grinder, and preserving a tail fiber with a certain length, and cutting with a cutter.

The invention provides a method for manufacturing a motor rotor and a self-aligning positioning mechanism used thereby. The method for manufacturing the motor rotor is characterized in that the motor rotor is formed by splicing a mandrel and magnetic steel by the self-aligning positioning mechanism through binding agent. The self-aligning positioning mechanism consists of a locating column, an aligning rod, an outer sleeve, a spring and a regulating rod, wherein the locating column contains a locating hole, communicating grooves are arranged around the upper part of the aligning rod, the sideof the aligning rod at the communicating grooves is a reversed-V-shaped conical surface which is matched with a corresponding reversed-V-shaped conical surface at the upper part of an inner cavity ofthe outer sleeve, and the lower part of the aligning rod is provided with a transverse through hole that is in clearance fit with a pressure bar; the outer sleeve is provided with an inner hole whichis in clearance fit with the aligning rod, the two sides of the outer sleeve are symmetrically provided with two long grooves, the pressure bar is inserted into the inner hole of the aligning rod andcan move up and down inside the two long grooves, the lower part of the outer sleeve is matched with the regulating rod by screw thread, and the spring is arranged between the aligning rod and the regulating rod. The invention has the advantages of greatly improving the accuracy of product and manufacturing efficiency as well as reducing the manufacturing cost of the product.

The invention provides a double-blade boring cutter head without radial motion for a cutter bar, aiming to provide a stable and reliable boring cutter head capable of reducing the self-excited vibration of a boring bar. The double-blade boring cutter head comprises a cutter base which is fixedly connected to the end head of a boring bar (4) and can be used for replacing a blade; and the cutter base comprises two symmetrical crescent base bodies in a shear fork shape, wherein end part same-hole shafts of the two symmetrical crescent base bodies can be rotatably connected to a sunken platform of a push rod (2) and the boring bar (4). Since the two symmetrical crescent base bodies in a shear fork shape are used, the cutter bar does not do radial motion but can realize self-radial feeding in the boring and cutting process. By the invention, radial cutting forces of two blades on the boring cutter head can be mutually offset, so that asymmetrical unidirectional forced condition of the cutter bar can be changed; and the boring bar is not a cantilever beam single side of which is forced any longer and cannot generate the phenomena of deviation of blade center, cutter relieving or cutter scraping like a single-blade boring cutter.

The invention discloses an exposure method for controlling the difference in line width of flexible circuit board batches. length value, the meter number counter feeds this signal back to the main controller; 3 the main controller generates a new signal after processing and transmits it to the exposure energy controller; 4 after the exposure energy controller receives the signal from the main controller, Control the amount of exposure light for the length of the next stage of the flexible circuit board; 5 repeat steps 1 to 4 until the exposure of all flexible circuit boards is completed. The invention weakens the diffusion of the photoresist by controlling the exposure energy, so as to control the deviation of the circuit due to the different time from exposure to development.

The invention discloses a tooling device for pressure testing of high-pressure oil pipes, which includes a left oil pipe fixing assembly, a right oil pipe fixing assembly, a bottom plate, a water inlet pipe, an air inlet pipe, and a connecting water pipe, wherein the left oil pipe fixing assembly includes a first hand valve, The first plug, the baffle plate, the swivel seat, the first air pipe, the second air pipe, and the oil pipe fixing assembly on the right side include the second plug, the third plug, the third air pipe, the fourth air pipe, and the second hand valve. The invention makes the first plug and the third plug pinch the joints at both ends of the high-pressure oil pipe under the push of the piston rod by turning the first hand valve and the second hand valve. The operation is simple and convenient, and the length of the high-pressure oil pipe is different. It is easy to install by adjusting the screw rod to reach a suitable distance. Use the rotation of the rotating seat to adjust the angle of the groove on the baffle to make it easy to install the oil pipe. Adjust the distance and angle by sliding the splint on the connecting rod to achieve The orientation adjustment of the left oil pipe fixing assembly and the right oil pipe fixing assembly.

The invention aims to provide a simple U-shaped bending piece stamping mould and belongs to the technical field of stamping moulds. By means of arranging rubber below a lower mould base, the problem that parts cannot be demoulded smoothly in a bending process, an upper mould and a lower mould cannot be clamped, and the upper mould and the lower mould of the stamping mould cannot be displaced. The simple U-shaped bending piece stamping mould comprises an upper mould base (1), screws (2), a mould shank (3), a stop pin (4), a pin (5), a guide sleeve (6), a cushion plate (7), a guide column (8), a male mould fixing plate (9), a positioning plate (10), screws (11), a female mould (12), the lower mould base (13), a pin (14), a screw (15), an upper cushion plate (17), the rubber (17), screws (18), a lower cushion plate (19), an ejection rod (20), screws (21), a male mould (22) and an ejection plate (23). The simple U-shaped bending piece stamping mould is basically free from maintenance, simple to operate, practical and reliable, and acts with cooperation of a special punch press.