47results about How to "Improve processing quality stability" patented technology

The invention discloses a cut lamina drying control method and a cut lamina drying system based on feedforward and feedback of HT moisture compensation. By the cut lamina drying control method, steam flow of an HT damping machine is adjusted to compensate HT incoming material moisture fluctuations, cut lamina moisture stability at an inlet of a rolling cylinder is maintained to the utmost extend, influence to a rolling cylinder drying process by the material moisture fluctuations is obviously reduced, dry process parameter stability is maintained, and process processing quality stability is improved; and cut lamina moisture and cut lamina flow at the inlet port of the rolling cylinder are added into a feedback control system through the feedforward, and accuracy of moisture adjustment in the rolling cylinder drying process is improved. The cut lamina drying control system based on the feedforward and feedback of the HT moisture compensation comprises a controller unit, two pneumatic actuators, two moisture meters, an electronic flow scale, a calculator and a cylinder wall steam pressure sensor. The control system is simple in structure, low in cost and easy to promote.

The invention provides a laser compound strengthening technology, which comprises the following steps of (1) carrying out femtosecond laser micro machining on a blade area of a hard alloy cutter, so as to obtain pits arranged in certain sequence; (2) carrying out laser shock peening in the blade area of the hard alloy cutter; (3) coating on the surface of the cutter after laser shock peening; and (4) carrying out laser shock wave microtexture forming process on the blade area of the coated hard alloy cutter, so as to obtain a laser compound strengthening model. The laser compound strengthening technology comprises four steps, namely, laser micro machining, laser chock peening, surface coating, and the laser shock wave microtexture. According to the laser compound strengthening technology, residual compressive stress, infiltration characteristic, heat transmission, cooling and lubricating conditions of the blade area can be obviously improved, built-up edges and burrs are reduced, and nickel base material is prevented from being attached to the surface of the cutter, so that the service life of the cutter is prolonged, and the stability of the manufacture quality is improved.

The invention discloses an industrial-robot-based abrasive belt grinding device for profiles of a controllable pitch propeller and a manufacturing method of the abrasive belt grinding device and mainly solves the problems caused in numerically-controlled machine tool type manufacturing, such as high cost, instability in machining precision and low efficiency due to manual grinding, occupational hazards of polishing and the like. The device mainly comprises a six-freedom-degree industrial robot, an abrasive belt grinding mechanism and a numerical control rotary table, wherein the abrasive belt grinding mechanism which is arranged in a triangular structure is connected with an end joint of the robot through a flange; a motor achieves high-speed rotation of an abrasive belt driving wheel through a synchronous belt; a pneumatic mode drives a tension wheel to achieve abrasive belt tension; a workblank of the controllable pitch propeller is installed and clamped in the center of the rotary table; and a servo motor drives an output gear of a reduction box to be meshed with a gear ring of a slewing bearing so as to achieve continuous 360-degree rotating and indexing. The abrasive belt grinding device is ingenious in structural design and high in grinding rigidity and universality, reduces the production cost greatly and has excellent practical and promotional values.

The invention relates to a bar material distribution device, in particular to a flexible automatic distribution device for deformed bar materials. The device comprises a flexible material storage mechanism, a servo distribution mechanism and a pneumatic material pushing mechanism which are used for storing, distributing and pushing the deformed bar materials respectively. Starting from a mechanical-electrical integration design idea, the distribution automation of the deformed bar materials is achieved by a flexible design method according to the characteristics of the deformed bar materials; after the device works with a special mechanical hand and a numerical control special machine, the automatic distributing, feeding and processing of the deformed bar materials can be achieved; the device is simple and reliable to use; the processing automation level of the deformed bar materials is effectively increased; the labor intensity is reduced; the influences caused by human factors are reduced; good cost performance is achieved.

The invention discloses a drilling actuator with a drilling and dimpling precision on-machine detection function. The drilling actuator comprises a machine base unit, a pressing unit, a drilling unit,a rotating air cylinder, a precision detection unit sleeve, an aperture measurement unit, a hole angle measurement unit and a dimpling depth measurement unit, wherein the aperture measurement unit, the hole angle measurement unit and the dimpling depth measurement unit are installed in the precision detection unit sleeve. The pressing unit is used for pressing a workpiece to be drilled and is movably arranged on the machine base unit, the drilling unit, the precision detection unit sleeve and the rotating air cylinder are arranged on the pressing unit in the direction perpendicular to the axis of a drilling main shaft in a sliding mode, and the rotating air cylinder is used for driving the precision detection unit sleeve to rotate around the self axis. The aperture measurement unit, the hole angle measurement unit and the dimpling depth measurement unit are conveyed to the measurement axis in sequence. The drilling actuator with the drilling and dimple precision on-machine detection function aims to solve the problem that the drilling actuator cannot find the quality deterioration trend in time.

The invention discloses an automatic overturning, welding and dispensing machine and an automatic overturning, welding and dispensing process. In the processing process, a workpiece needing to be subjected to double-sided welding is firstly fixed on a wire clamping fixture, and the wire clamping fixture is placed in a clamp conveying runner and is sent to all stations through the clamp conveying runner; the front face of the workpiece is welded at the front face welding stations in sequence, the wire clamping fixture is overturned by 180 degrees at a first fixture overturning station to enablethe back face of the workpiece to be upward, the back face of the workpiece is welded from the front face at the back face welding stations, dispensing is carried out on the front face of the workpiece at the dispensing station, then the wire clamping fixture is overturned by 180 degrees to enable the back face of the workpiece to be upward, then dispensing is carried out on the back face of theworkpiece from the front face, in this way, dispensing of the front and back faces is completed at the same dispensing station, and curing is carried out on the front and back faces of the workpiece at a double-face curing station; and fully-automated operation is achieved, labor cost is reduced, and the processing efficiency and yield are improved.

The invention discloses a swirler air flow controllable abrasive flow machining method and machining plugging device. The method comprises the steps that: an air flow initial value of a to-be-machinedchannel on a to-be-machined swirler is measured, a variable quantity is determined through a circulating abrasive flow machining method, the maximum machining cycle index is determined according to the air flow maximum value of the channel to be machined and the variable quantity of one-cycle machining, the product of the maximum machining cycle index and the variable quantity of one cycle machining is smaller than the air flow maximum value of the to-be-machined channel, and abrasive flow machining is conducted on the to-be-machined channel according to the maximum machining cycle index, andthe to-be-machined channel is subjected to finish machining till air flow of the to-be-machined channel meets the design requirement. The controllable abrasive flow machining is used, the requirementthat an air flow value of a swirler meets the requirement of a high-precision design drawing can be met, a design flow requirement can be met through one-time machining, repeated rework is not needed, and uniform thinning of the surface of a part flow channel is not needed. The problem of uneven manual polishing and repairing of workers is avoided, and the machining quality stability is improved.

The invention discloses a machining method for a crankshaft hole. According to the method, a boring cutter expansion bar of an unfolding type boring cutter is driven by the movement of a main shaft cutter expansion bar in a machining center so as to realize expansion and retraction of a boring cutter blade. The method has the advantages that the boring cutter expansion bar of the unfolding type boring cutter is driven by the movement of the main shaft cutter expansion bar, so that automatic retraction and expansion of the boring cutter blade, automatic cutter changing and automatic diameter compensation can be realized, and therefore the machining efficiency, the machining quality and the machining stability are improved, the flexibility of the machining line production is realized, and the machining efficiency is improved.