168results about How to "Eliminate burrs" patented technology

The invention provides a step counting method which comprises the following steps: 1), obtaining resultant acceleration data within a period of time according to a data window, wherein the data window continuously translates in the forward direction on a timer shaft; 2), using a self-adapting filter for filtering the resultant acceleration data in a current data window, wherein self-adaptation training is performed on the filter coefficient of the self-adapting filter according to the resultant acceleration data in the current data window; 3), performing step counting according to the filtered resultant acceleration data in the current data window. The step counting method can provides relatively accurate step counting results timely.

The invention discloses a bridge crack detection device and detection method. The automatic bridge crack detection device comprises a control device, an installation car, a telescopic rod mechanism and a detection device, wherein the control device comprises a data processing device, a display, a walking controller, a camera shutter frequency detection unit, a telescopic rod adjusting device, a telescopic rod adjusting controller, a first distance detection unit, a second distance detection unit, an illuminating brightness detection unit, a brightness adjusting module and an illuminating brightness controller. The detection method comprises the steps of (1) preparatory work before detection; (2) shooting and uploading of an image; (3) image capturing; (4) bridge crack image processing; (5) calibration object image calibration; and (6) calculating and synchronous outputting of bridge crack parameters. The bridge crack detection device is simple in structure, reasonable in design, and convenient to use and operate, accurate and quick detection of the size of bridge cracks can be achieved, and the work efficiency of bridge crack detection and the reliability of detection data are improved.

The present invention provides a deburring device for a punch press which can remove burrs produced along a slot or a cut portion formed in a plate material by punching or cutting using a punch press so that the removal is carried out as a process with the same punch press. A deburring device 6 for a punch press has an upper tool 7 and a lower tool 8 arranged opposite each other. The upper and lower tools 7, 8 each have a ball holding member 22, 32, respectively, and a ball 23, 33, respectively, rotatably supported by the ball holding member and projecting from a surface of the ball holding member 22, 32 toward an opposite surface of the opposite ball holding member 32, 22. Each of the upper and lower balls 23, 33 has a diameter larger than the width of the slot A, in its portion projecting from the ball holding member 22, 32, respectively, the slot A being formed in the plate material W so as to extend across the plane. The plate material W moves with the vertical pair of balls 23, 33 partly fitted into the slot A and with the plate material W sandwiched between the upper and lower balls 23, 33 to continuously remove burrs (a) produced along a longitudinal direction of the slot A. The deburring device 6 continuously removes not only the burrs produced along the slot A but also those produced along a cut portion in the plate material W as described above.

The invention discloses a circuit breaker breaking-closing control loop fault diagnosis method. The method comprises steps as follows: 1) a sample database for storing actual fault waveforms is established, and fault types are numbered; 2) a characteristic value of a current signal of a breaking-closing coil is acquired under the fault-free condition; 3) a to-be-measured breaking-closing current signal is acquired and filtered; 4) the breaking-closing starting moment and the breaking-closing ending moment of the to-be-measured current signal are acquired, and part of data are randomly deleted or copied, so that the intercepted data length is equal to the length of sample data; 5) the characteristic value and the number of extreme values of the processed to-be-measured current signal are acquired; 6) whether the number of the extreme values is larger than 3 is judged, and whether a jam fault happens is determined; 7) the distance between the characteristic value of the to-be-measured signal and the characteristic value of a normal signal is compared, and whether the signal is a normal signal is determined; 8) the to-be-measured signal is compared with data in the actual fault sample database, and the fault type is determined by comparing the distance of the waveform of the to-be-measured signal and the waveform of the actual fault sample database. By means of the circuit breaker breaking-closing control loop fault diagnosis method, calculation is simple and convenient, and the reliability is high.

The invention discloses a clock commutation circuit without burr, which is characterized by the following: comprising data selector, multistage three grades synchronous circuit, time delay circuit and gate controlling circuit; switching the imputing clock signal with the data selector; generating the clock signal with burr; synchronizing the three grades synchronous circuit and the outputting signal of the data selector; excluding the outputting signal of the first grade synchronous circuit and the third synchronous circuit in the gate controlling circuit; masking the burr of clock signal switching; delaying time for the clock signal with the time delay circuit; avoiding simultaneous roll-over of the clock signal edge and the electrical level of the synchronous circuit outputting; generating new burr. This invention can be used to the system with multipath clock signal.

The present invention discloses a burr eliminating circuit which comprises a delay module which is used for detecting the width of the burr and a delay output module for eliminating the burr problem generated in specific condition. The delay module is connected with a feedback control circuit module. The delay module controls the feedback control circuit module to reset with an accelerated speed when the burr is detected and sets with an accelerated speed when the valid data is detected. The circuit of the invention totally satisfies the functions of determining and eliminating the burr and can expands the width of the valid narrow pulsewidth signal to a safe width for securing the safe operation.

The present invention relates to a method and system for glitch correction in an all digital phase lock loop. An all digital phase lock loop can include a phase error signal generation unit, a multi-phase oscillator, a glitch correction unit, and a phase to digital converter. The phase to digital converter receives a multi-phase signal from the multi-phase oscillator and generates a phase signal. The error signal generation unit receives the phase signal and a reference phase signal and generates a phase error signal, which is fed to the glitch correction unit. The glitch correction unit removes the glitches in the phase error signal by a portion of the phase error signal. The phase lock loop can also include a phase rotator and a calibration block. The calibration block instructs the phase rotator to rotate the multi-phase signal by the phase rotation which generates the minimum number of glitches.

The invention relates to a die of an overrunning clutch gland of a motorcycle. The die comprises an upper die carrier and a lower die carrier, wherein the upper die carrier and the lower die carrier are connected through a die carrier guide post. The lower portion of the upper die carrier is fixedly connected with a first base plate, a second base plate, a male die fixing plate and a female die. A large male die is arranged in the middle of the male die fixing plate and perpendicularly connected with an upper stripper plate, a cavity is formed in the middle of the upper die carrier, a knockout plate is arranged in the cavity and connected with one end of a knockout rod, the other end of the knockout rod is connected with the upper stripper plate, three small male dies are further arranged on the male die fixing plate and provided with die ends and die heads, protruding parts are arranged on the outer walls of the die heads, the bottoms of the protruding parts on the two sides and the heads of the die heads form a stamping part which is of a countersunk screw shape, a female-and-male die and a lower stripper plate are fixed to the lower die carrier, the female die and the female-and-male die are connected through a stripper plate guide post, a stripper plate guide sleeve is arranged on the outer wall of the stripper plate guide post, and the top of the middle of the upper die carrier is connected with a die handle. According to the die, procedures are simplified, production efficiency is improved, burrs are removed, and roughness is improved.

The invention discloses a denoising and sharpening method by aiming at a multimode image, which comprises the following steps: 1, carrying out Dual bilateral filtering to an input noise multimode image group dijk to obtain a first level of denoised image group g'ijk; 2, taking the first level of denoised image group g'ijk as a reference image, and carrying out referenced Dual bilateral filtering to the original noise image group dijk to obtain a second level of denoised image group g''ijk; 3, carrying out edge-preservation cross unsharpened masking filtering to the second level of denoised image group g''ijk to obtain a sharpened and enhanced image group f'ijk; and 4, taking the g''ijk as a reference image, and carrying out referenced Dual bilateral filtering to the sharpened and enhanced image group f'ijk to obtain a final result fijk. According to the characteristic that information among component images in the multimode image group has certain relativity, the multimode image can be subjected to noise suppression and edge selectivity sharpening, and the subjective visual quality is improved.

A clock selection circuit includes an output multiplexer, control logic, and edge detection logic. The multiplexer includes inputs to receive multiple input clock signals, an output to generate the output clock signal, and a control terminal to receive a synchronized clock select signal. The control logic includes a first input to receive a clock select signal, a second input to receive a first control clock signal, a third input to receive a synchronization signal, and an output to selectively update the synchronized clock select signal with transitions in the clock select signal. The edge detection logic includes first inputs to receive the multiple input clock signals, a second input to receive a second control clock signal, and an output to generate the synchronization signal.

the ends of strip steels are butt-jointed with each other in the longitudinal direction in order and are connected by welding, when such long strip steel raw material is used for continuously making a thin flux-cored wire, the burr generated due to the shearing of the steel plate and continuously existing at the end of the width direction of the strip steel along the whole longitudinal direction of the strip steel faces the upper part of the connecting strip steels, then the ends of strip steels are butt-jointed with each other in the longitudinal direction, and are connected by welding, no burr toward the outside of the thin flux-cored wire exists. By adopting the method, the circularity of the flux-cored wire can be ensured, in case of thin flux-cored wire, no bad influence on the supply of the extending-out welding wire in the welding construction for a welding machine is caused, and the supply is good.

The present invention provides a circuit, which is used for preventing clock-gating glitches in the processing circuit of no-working clock in the design of low power consumption. The circuit adopts different clock edges to realize the clock switching control, effectively eliminates the potential competition in the clock switching process, and thus achieves the purpose of preventing the clock from generating the glitches in the gating process. No-working clock is generally applied in the design of low power consumption; the glitches appear in the switching process between the no-working clock and the novel provision of the clock; the circuit can be used for preventing the glitches in the switching process of clocks, and improving the stability and reliability of the circuit.

A nozzle plate includes a nozzle surface and a nozzle hole. The nozzle surface defines an ink ejection port. The nozzle hole includes a taper hole portion and a curved-surface hole portion. The taper hole portion has an inner surface of a truncated conical shape and has the smallest diameter at one end thereof. The curved-surface hole portion has an inner surface of a curved-surface shape. The inner diameter of the curved-surface hole portion gradually decreases as approaching from the one end of the taper hole portion to the ink ejection port.

The invention discloses a processing device for directly grinding an inclined groove and a straight groove of a plunger piston, which comprises a machine tool body and a cooling filter, wherein a work table, a transmission device, a grinding device and a control cabinet are arranged on the machine tool body, the cooling filter is arranged on the machine tool body and consists of a cooling spray head, a cooling pipe, a water collection pipe, a water pump and a cooling box, the grinding device comprises an electronic grinding head, a grinding rod is arranged on a main shaft of the electronic grinding head, a cubic boron nitride (CBN) grinding wheel is arranged on the grinding rod. The device can be more conveniently and accurately used for processing the inclined groove and the straight groove of the plunger piston, in the cutting process, the damage occurring in the grinding process is avoided through the cooling filter, the burrs are eliminated, the normal use of products in a diesel engine is ensured, and simultaneously, the production efficiency is improved.