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584results about How to "Prevent excessive deformation" patented technology

Bending machine controlling torque adjustment and roll bending through PLC and method

The invention relates to a bending machine controlling torque adjustment and roll bending through a PLC and a method. The bending machine comprises a driving motor, a clamping-fixing seat and a PLC mainframe, wherein the driving motor, the clamping-fixing seat and the PLC mainframe are arranged on a machine frame, a bending shaft is installed on the driving motor, and a machined part is arranged on the clamping-fixing seat. The bending machine further comprises a capacitive sensing thickness detector installed on the machine frame through a support, a proximity switch installed on the clamping-fixing seat, a pressure sensor and a rolling shaft, wherein the rolling shaft is connected to the upper end face of an adjusting plate, and the lower end face of the adjusting plate is installed in an installing groove formed in the clamping-fixing seat by means of a rotary shaft and a spring. The bending machine adopts the pressure sensor to control clamping force, and excessive deformation and looseness of boards are avoided. Bending is performed by utilizing most suitable torque, and machining quality is improved. The bending machine automatically controls a bending angle through the arranged proximity switch and prevents excessive bending. The inner concave face of the machined part is rolled through the rolling shaft, and cracks and burrs at the position of the concave face are decreased.
Owner:DONGGUAN ZHENGQIANG HARDWARE ELECTRONICS

X-ray thickness detection and bending speed adjusting bending machine based on PLC

The invention relates to an X-ray thickness detection and bending speed adjusting bending machine based on a PLC. The X-ray thickness detection and bending speed adjusting bending machine comprises a driving motor, a clamping fixing base, a main machine as well as an X-ray thickness detector, a first pressure sensor, a second pressure sensor and a detection feedback device, wherein the driving motor is arranged on a rack; the main machine is used for controlling the driving motor; a bending shaft is mounted on a motor shaft of the driving motor; a processed workpiece is arranged on the clamping fixing base; the X-ray thickness detector is mounted on the rack through a first bracket; the first pressure sensor and the second pressure sensor are arranged on the clamping fixing base; the detection feedback device comprises an ultrasonic crack detector which is arranged on the clamping fixing base through a second bracket. The invention further provides a bending processing method adopting the bending machine. Due to PLC controlled sectional processing and positioning detection, the phenomenon of bending deviation or bending omission can be avoided, and the processing reliability can be improved; the processed workpiece can be bent according to most appropriate torque, so that the processed workpiece is prevented from being affected by too large or too small torque, bending cracks can be reduced, and the processing quality can be improved.
Owner:南京比泰数控机械设备有限公司

Capacitor thickness detection and crack feedback plate bending machine based on PLC

The invention relates to a capacitor thickness detection and crack feedback plate bending machine based on a PLC. The capacitor thickness detection and crack feedback plate bending machine comprises a driving motor, a clamping fixing base and a PLC host machine for controlling the driving motor. A bending shaft is installed on a motor shaft of the driving motor, and a machined piece is arranged on the clamping fixing base. The capacitor thickness detection and crack feedback plate bending machine further comprises a capacitor induction thickness detector installed on a machine frame, a pressure sensor arranged on the lateral side of a clamping groove of the clamping fixing base, a detection feedback device and a controller connected with the PLC host machine. The detection feedback device comprises an ultrasonic crack detector arranged on the clamping fixing base. The capacitor induction thickness detector, the ultrasonic crack detector and the pressure sensor are connected with the PLC host machine through a DSP module. The invention further provides a bending method. According to the capacitor thickness detection and crack feedback plate bending machine and method, sectioned machining is controlled through the PLC, the machined piece is bent at the most proper rotating speed, influences of the excessively-high or excessively-low rotating speed on the machined piece are avoided, bending cracks are reduced, and the machining quality is improved.
Owner:宿州市徽腾知识产权咨询有限公司

Female terminal

InactiveUS20020076999A1Prevent excessive deformationPrevent the leaf spring from being deformed excessivelyCoupling contact membersElectric connection basesContact forceLeaf spring
A flexible-piece-receiving hole is opened in the bottom wall while ensuring an adequate contact force is obtained between the leaf spring and a male terminal and preventing the leaf spring from excessive deformation, and in turn, the workability of operation of disengaging the flexible piece from the female terminal is enhanced. A female terminal comprising a tubular body, a leaf spring being provided inside the body and having a first bent part being bent upward and rearward from the front end of the bottom wall of the body, an intermediate part extending rearward from the first bent part, a second bent part being bent downward and forward from the rear end of the intermediate part, and a top end part extending forward from the second bent part and keeping itself away from the intermediate part, a first fitting means for fitting the front end of the top end part of the leaf spring onto the side walls, a second fitting means, which allows, when the intermediate part of the leaf spring is displaced downward to contact the top end part of the leaf spring, a part ahead of said contacting part of the intermediate part of the leaf spring to be displaced downward by a certain length, and fits the part onto the side walls at the bottom dead point, and a flexible-piece-receiving hole being opened in the bottom wall ahead of a part at which the second bent part or the rear end of the top end part of the leaf spring being displaced downward contacts the bottom wall.
Owner:JST MFG CO LTD

Connecting terminal and method of mounting the same onto a circuit board

A connecting terminal for allowing a circuit board to come into compression contact with a flat conductor with certainty, particularly to a connecting terminal having a contact part which is not irregularly deformed even if the contact part comes into compression contact with the flat conductor oblique or in the lateral direction and which maintains an optimum contact pressure. The connecting terminal is made of a substantially strip conductive plate and comprises a fixed part provided at one end of the conductive plate to be mounted onto a circuit board, and a contact part extended from the fixed part and formed by bending the conductive plate toward the fixed part to form a curved part, wherein the contact part is elastically deformed about the curved part to come into compression contact with the substantially flat conductor, and the connecting terminal further comprises a pair of side wall parts formed by bending the conductive plate 11 at the fixed part in a width direction thereof, wherein the side wall parts have a height to an extent to restrict excessive deformation of the contact part when the contact part comes into compression contact with the flat conductor. Further, an interval between the pair of side wall parts is made larger than a width of the contact part, and both end sides of the contact part contact or approach inner surfaces of the side wall parts.
Owner:JST MFG CO LTD

Construction method for supporting deep foundation pit through grouting after pile arrangement and anchor cable mounting

The invention discloses a construction method for supporting a deep foundation pit through grouting after pile arrangement and anchor cable mounting. The construction method comprises the steps that firstly, pile arrangement supporting structure construction is performed, wherein a pile arrangement supporting structure comprises multiple slope protection piles which are arranged along the peripheral edge line of the constructed foundation pit from front to rear and a crown beam connected to the upper portions of the slope protection piles; secondly, foundation pit excavation is performed, wherein the constructed foundation pit is excavated from top to bottom; and thirdly, anchor cable supporting structure and waist beam construction is performed, wherein during excavation of the constructed foundation pit, the constructed foundation pit is excavated to the anchoring position of an anchor cable supporting structure, and the anchor cable supporting structure is constructed; and the anchor cable supporting structure comprises multiple prestress anchor cables, each prestress anchor cable comprises an anchor cable body, a primary grouting pipe and a secondary grouting pipe, and each anchor cable body comprises multiple steel strands. The method has the beneficial effects that the steps are simple, the design is reasonable, construction is easy and convenient, the use effect is good, the deep foundation pit supporting construction process can be completely easily, conveniently and quickly, the cost of the adopted prestress anchor cables is low, the anchoring force is high, and the deep foundation pit can be supported effectively.
Owner:SCEGC NO 6 CONSTR ENG GRP CO LTD

Color film substrate, manufacturing method thereof, display panel and display device

The invention provides a color film substrate, a manufacturing method of the color film substrate, a display panel and a display device. The color film substrate comprises a substrate body, single-layer color film layers and a color folding film layer, wherein the single-layer color film layers are formed on one side of the substrate body and located in color sub-pixel areas, and the color folding film layer is located between one part of the color sub-pixel areas and formed by multiple single-layer color film layers in a laminated mode. The color film substrate further comprises a shock insulator located between the other part of the color sub-pixel areas and an auxiliary electrode layer with which the surface of the color folding film layer is covered. The top surface of the shock insulator is higher than that of the color folding film layer, and the shock insulator can be elastically compressed in the height direction. The situation that the color film substrate cannot be used normally due to uneven internal pressure when a screen is oversize is avoided, the color film substrate is applied to display of OLEDs, damage to ITO materials and cathode materials of the auxiliary electrode layer can be effectively reduced, and a good electric conduction effect can be guaranteed.
Owner:BOE TECH GRP CO LTD

Punching device based on capacitance detection and photoelectric induction positioning

The invention relates to a punching device based on capacitance detection and photoelectric induction positioning. The punching device based on capacitance detection and photoelectric induction positioning comprises a punching driving device, an upper die plate, a punching head and a clamping device located below the punching head, and a machined workpiece is mounted in the clamping device. The punching device comprises a mainframe, a controller, a hydraulic speed control loop, a capacitance thickness detector and a photoelectric switch. A color code for detecting the photoelectric switch is mounted on the clamping device, the output end of the mainframe is connected with the controller and the capacitance thickness detector, and a laser head is arranged in the punching head. According to the punching device, laser hole cutting and punching are combined, and machining efficiency is improved; the machined workpiece is accurately positioned through the photoelectric switch, and the punching device is accurate in positioning and convenient to operate. The thickness of the machined workpiece is detected, the punching speed and the laser energy are controlled through thickness, the defects of excessive deformation of plates due to the too high punching speed and burrs of the plates due to the too low punching speed are overcome, and machining quality is improved.
Owner:SUZHOU JINGYU AUTOMATION TECH

Excavation and preliminary bracing method for soft rock tunnel

The invention discloses an excavation and preliminary bracing method for a soft rock tunnel. The excavation and preliminary bracing construction for the soft rock tunnel are performed in sections from back to front. When any section is subjected to excavation and preliminary bracing construction, the method comprises the following steps: 1) confirming basic mechanical parameters of the surrounding rock; 2) confirming the reserved excavated volume of the tunnel: confirming the reserved excavated volume of the currently constructed section according to a theoretical value of inward displacement of the surrounding rock of the soft rock tunnel after being braced; 3) excavating the tunnel; 4) confirming a preliminary bracing structure of the tunnel; 5) constructing the preliminary bracing of the tunnel; 6) performing the excavation and preliminary bracing construction of the next section; and 7) repeating the step 6) till all the processes of the excavation and preliminary bracing construction of the soft rock tunnel are completed. The method disclosed by the invention has the advantages of simple steps, reasonable design, convenience in realization and good use effect; the reserved excavated volume is confirmed according to the surrounding rock deformation condition of the soft rock tunnel; and the steel bracket and the anchoring net sprayed preliminary bracing structure are coordinated for performing all-section preliminary bracing on the tunnel.
Owner:XIAN UNIV OF SCI & TECH
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