124results about How to "Less machining process" patented technology

The invention discloses a calibrating device of an automobile pedal force and travel detector in the field of automobile industry, and aims to solve the problem that the automobile pedal force and travel detector cannot be calibrated. A system comprises a pedestal (1), a stayguy sensor (2), a supporting platform (3), a fixed sleeve (4), a force sensor (5), a guide post (7), a sliding sleeve (8) and a lead screw (9). The calibrating system can calibrate numerical values of pedal force and pedal travel of an automobile measured by the automobile pedal force and travel detector.

An ultrasonic motor has a cylindrical rotor for performing a mechanical output, a plurality of ultrasonic vibrators each having two points in internal contact with the rotor, and a preload mechanism for pressing the ultrasonic vibrators from an inside toward an outside of the rotor, and the ultrasonic vibrators are provided to be rotatable relative to the preload mechanism. With this configuration, an internal contact type ultrasonic motor capable of performing efficient drive by using a plurality of ultrasonic vibrators each in contact with a cylindrical rotor at two points and allowing contact at all contact points without requiring a high machining accuracy can be provided.

The invention discloses a method for preparing a reinforced tungsten carbide abrasion-resistant composite plate. The method comprises the following steps of: selecting a low-carbon steel plate or a low-alloy steel plate adapted with the size of a hearth of a heating furnace as a substrate, uniformly spreading film removing agent, alloy powder, tungsten carbide powder and slag forming agent powder on a cleared surface, horizontally putting the substrate into the heating furnace, and heating the substrate to obtain the reinforced tungsten carbide abrasion-resistant composite plate. The abrasion-resistant alloy surface of the working layer of the reinforced tungsten carbide abrasion-resistant composite plate produced by using the method is flat and attractive; the composite plate can be directly used for the working conditions (such as a baffle plate and the like) requiring flat surfaces, so a machining process and corresponding production cost are saved; and the composite plate can be widely applied to the working condition of high abrasive abrasion, and has longer service life.

The invention discloses a space general position and orientation measurement standard of a machine vision measurement system, and aims to solve the problem that verification on measuring results of objects in general positions and orientations in space of the machine vision measurement system cannot be realized. A three-way linear guide rail and a two-way curved guide rail are utilized to enable a standard target to reach optional position angles in the space. The system has the advantages of simple structure, high accuracy in measurement, small accumulative errors, completeness in functions, convenience in operating and the like. The system comprises a position adjusting part (A) and an orientation adjusting part (B). By the aid of the space general position and orientation measurement standard, the verification on space general position and orientation measuring results of the machine vision measurement system is realized.

Provided are a fuel injection nozzle for an internal combustion engine, a nozzle blank, and a manufacturing method for the nozzle blank, wherein the production processes are simple, the productivity is high, and the production can be performed at a low cost and with a high precision. A fuel injection nozzle for an internal combustion engine has a two layer structure of different materials, comprised of a nozzle body and a nozzle tip outer surface member which is arranged to cover a tip outer surface side of the nozzle body. The nozzle body is formed of a mold which has been molded into a predetermined shape by a metal powder injection molding method and which has been subjected to degreasing to obtain a degreased body forming the nozzle body. Likewise, separately, the nozzle tip outer surface member is formed of a mold which has been molded into a predetermined shape by a metal powder injection molding method and which has been subjected to degreasing to obtain a degreased body forming the nozzle tip outer surface member. The degreased body forming the nozzle tip outer surface member is superimposed on the degreased body forming the nozzle body to cover the tip outer surface side of the degreased body forming the nozzle body and is subjected to diffusion sintering to thereby integrally unite them. It is preferable that a hot isostatic pressing operation be performed after the diffusion sintering.

The invention discloses a camera three-dimensional truss calibrating target for an automotive visual detection system. The camera three-dimensional truss calibrating target for the automotive visual detection system aims at solving the problems that the existing three-dimensional calibrating object is large in size and complex in machining, cannot obtain three-dimensional data points of spatial general positions in a space coordinate system and is difficult to achieve site calibrating which is high in requirement for practicability. The camera three-dimensional truss calibrating target for the automotive visual detection system is mainly formed by target balls (1) and connecting rods (2). The camera three-dimensional truss calibrating target for the automotive visual detection system has the advantages of being simple in structure, high in detection accuracy, small in accumulative error, complete in function, simple in operation, easy to install, strong in universality, low in cost and reliable in performance and satisfying an automotive detection industry requirement for visual detection of an automobile body.

The invention discloses a vehicle-mounted movable machine vision inspection system for highway pavement cracks and aims to overcome the problem that pavement crack image acquisition and pavement condition evaluation cannot be realized. The system comprises a crossbeam (1), a longitudinal beam (2), a camera (3), an adjusting rack (4) and an automobile (5). The system provided by the invention is a vehicle-mounted movable non-contact automatic detection system capable of automatic acquisition of pavement images through machine vision and evaluation of pavement damage conditions.

The engine valve guide tube has its top made of material B and other parts made of material A. The material A consists of Cu 0.5-2 wt%, Ni 1-3 wt%, Mo 0.5-1 wt%, C 0.5-1 wt%, NbC 5-12 wt% and P 0.3-0.6 wt% other than Fe and inevitable impurity; and the material B consists of Cu 2-4 wt%, Ni 2-4 wt%, Mo 1-2 wt%, C 0.5-1.5 wt%, NbC 10-20 wt% and P 0.3-0.6 wt% other than Fe and inevitable impurity. It is manufactured through the processes of compounding material, mixing, hot pressing to form and sintering to obtain product. The valve guide tube manufactured through once pressing and sintering hashigh strength and high hardness and wear resistance.

The invention relates to a composition of a powder metallurgical perforating charge shell material, a professional die and a manufacturing method of the powder metallurgical perforating charge shell material. The invention mainly solves the problems that the traditional perforating charge shell machining process is complicated and has low machining efficiency and high cost. The powder metallurgical perforating charge shell material comprises the following raw materials in percentage by weight: 0.8 percent of carbon powder, 1 to 3 percent of copper powder, 1 to 3 percent of nickel powder, 0.1 to 1 percent of molybdenum powder, 91.2 to 97 percent of iron powder, and 0.1 to 1 percent of bonding agent; and the powder metallurgical perforating charge shell material is prepared by mixing the raw materials,pressing and molding, sintering, finishing and preservative treatment. The powder metallurgical perforating charge shell adopted the powder pressing molding method to prepared, realizes iron scrap-free processing, has high processing efficiency and reduces the processing cost; and the penetrating performance of a perforating charge manufactured by using the powder shell exceeds the penetrating index of the traditional steel shell, and meanwhile, the perforating charge has the characteristic of low scrap and is suitable for the special operation requirements of full-bore perforations and the like in the petroleum industry.

The invention discloses an automobile appearance motion-unrestricted detection instrument based on three-dimensional rectangular coordinates, and aims at solving the problems to realize the automobile appearance motion-unrestricted detection by using three-dimensional rectangular coordinates. The automobile appearance motion-unrestricted detection instrument based on three-dimensional rectangular coordinates is characterized by consisting of a long rod (2), a light emitting diode (3), a calibration cube (4), a cross line laser (5), a spring (6), a steel ball (7) and a camera (8). The automobile appearance motion-unrestricted detection instrument based on three-dimensional rectangular coordinates is systematically provided and has the advantages that the structure is simple; the operation is simple and convenient; the installation is easy; the cost is low; the performance is reliable.

The invention discloses a laser ground projection type commercial car body length initiative visual detection system which aims at solving the problems that length direction image collection and initiative visual measurement of a whole large size commercial car can not be achieved. The system comprises a line projector assembly body base (1), a line projector seat (2), a line projector clamp (3), a camera seat (4), a camera (5), a line projector (6) and a drum-type braking test table (7). According to the laser ground projection type commercial car body length initiative visual detection system, a non-contact automatic measuring system capable of automatically collecting car body laser projecting rays and measuring the length of a car body through initiative machine visual sense.

The invention discloses an automobile appearance detection structured light calibration system based on point to coordinate axis distance constraint and aims at solving the problem that a laser plane equation under a world coordinate system cannot be directly acquired through currently-existing calibration methods. The automobile appearance detection structured light calibration system is mainly composed of a three-dimensional calibration plate (1) and a T-shaped calibration plate (2). The automobile appearance detection structured light calibration system is simple in structure, high in detection accuracy, small in accumulative error, complete in function, simple and convenient to operate, easy to mount, high in universality, low in cost and reliable in performance, and can meet visual detection requirements on automobile bodies in automobile detection industry.

The invention discloses a light filtering type finished automobile image acquiring system for automobiles, and aims to overcome the problem that the once rapid acquiring and processing on a large-size service finished automobile image in the length direction can not be realized. The system comprises a base (1), a light filter base (2), a camera base (3), a line laser base (4), a convex lens base (5), a convex lens (6), a light filter (7), a camera (8) and a line laser (9). The light filtering type finished automobile image acquiring system for the automobiles can automatically cast mark lines, acquires effective light bar images, and is small in size, simple and convenient to operate, reliable in performance, high in generality, easy to install, simple in system calibration, low in manufacturing cost and high in precision, and the requirements of national measurement and quality surveillance departments and production factories on acquiring the finished automobile images are met.

The invention discloses an automobile morphology grating field projection initiative vision measurement system and aims at solving the problem that road surface crack image collection and road surface condition evaluation can not be achieved. The automobile morphology grating field projection initiative vision measurement system comprises a front grating projection system (A1), a right grating projection system (A2), a left grating projection system (A3), a back grating projection system (A4), a front-right image collection system (B1), a front-left image collection system (B2), a back-right image collection system (B3) and a back-left image collection system (B4). According to the automobile morphology grating field projection initiative vision measurement system, automobile morphology can be automatically reconstructed by machine vision through grating field projection construction feature points.

A forming method of a tooth trace of a gear according to the present invention includes: a first step of preparing a preformed gear made of metal including a cylindrical main body and a tooth part having a flat tooth flank having a uniform thickness in a tooth trace direction inside of the main body; and a second step of conducting a surface treatment locally to an outside surface of the main body in order to deform the outside surface of the main body in such a manner that the same becomes concave, so that a crowning bulging in the tooth trace direction is formed on the tooth flank of the tooth part.

The invention discloses an automobile morphology measurement system mechanical distortion coefficient measuring instrument, and aims at solving the problem that an automobile morphology visual detection system camera lens distortion coefficient cannot be easily and conveniently measured. The automobile morphology measurement system mechanical distortion coefficient measuring instrument is mainly composed of a square frame (1), steel wires (2), sleeves (3) and adjusting screws (4). Stretching of the steel wires is controlled by the adjusting screws (4) so that steel wire images in distortion images are enabled to be changed into original straight lines, and the distortion coefficient is obtained according to the number of rotation turns of the adjusting screws (4). The automobile morphology measurement system mechanical distortion coefficient measuring instrument is simple in structure, high in detection precision, easy and convenient to operate, easy to install, relatively low in cost and reliable in performance.