190results about How to "Achieve coincidence" patented technology

The invention provides an exoskeleton hand rehabilitation training device for hand rehabilitation training of a stroke patient. The exoskeleton hand rehabilitation training device mainly comprises a finger driving device, a hand supporting assembly, a wrist supporting assembly and a motor driving device. The finger driving device is installed on the hand supporting assembly. The hand supporting assembly and the motor driving device are installed on the wrist supporting assembly. Power of a motor is transmitted to the finger driving device through a steel wire flexible shaft assembly, finger joints can move through gear transmission, the four fingers can be driven independently, the structure is simple and easy to obtain, and due to the rear motor driving device and the steel wire flexible shaft driving mode, the weight of the finger exoskeleton structure is lowered. Due to the fact that an arc track structure is arranged on the finger driving device, the rotation center of the exoskeleton device and the rotation center of the finger joints are kept consistent, and the finger driving device can adjust the length of the exoskeleton finger and replace a finger fixing ring according to the lengths and radiuses of fingers of the patient.

The invention discloses a robot tool central point calibration method using a two-dimensional measurement functional tablet. A robot is controlled to enable a TCP to make contact with a measurement area of a calibration tool more than three times in different postures in the calibration process, joint coordinate information of the robot is recorded in the contact process, and the two-dimensional coordinates of the contact points in a measurement plane are output through the two-dimensional position measurement function of the calibration tool; the coordinates of the TCP in a robot tail end tool coordinate system are calculated according to measured joint rotation angle information of the robot and the coordinate data of the contact points on the tablet and in combination with the structural parameters of the robot, and the calibration accuracy is evaluated. According to the calibration method, the TCP of the robot does not need to coincide with the same fixed point multiple times, the point-point coincidence requirement is weakened to point-surface coincidence, and operation is easy. When the TCP of the robot has small deviation, autonomous calibration can be realized.

The invention discloses a mechanical sealing property testing device. An electric main shaft is connected with a single cantilever working main shaft; floating support of the single cantilever working main shaft is achieved by virtue of the geometric pressure compressing function of a moving ring end surface and a static ring end surface; the edge end of a force measurement sleeve is of a flange structure; an axial force strain piece is arranged on the force measurement sleeve; a shaft sleeve sleeves the single cantilever working main shaft and penetrates through end covers at the left end and right end of a sealing cavity; the shaft sleeve is slidably connected with the single cantilever working main shaft in a sliding manner in the axial direction and in a positioning manner by using an embedding block in the circumferential direction; two sections of threads of which the screw pitches are equal and the spiral lines are in opposite directions are formed in the shaft sleeve; the threads are respectively screwed with a left screw nut and a right screw nut; the back sides of two push rings respectively contact two moving ring bases; the moving ring bases are connected with the shaft sleeve in an sliding manner in the axial direction and in a positioning manner in the circumferential direction; a through hole which is communicated with a sealed end surface is formed inside a static ring; an infrared probe is arranged inside the through hole. Due to the structural design, measurement on property parameters such as large diameter and high rotation speed of mechanical sealing, particularly the measurement on the axial force and the temperature between sealed end surfaces can be achieved.

The invention provides a light guide plate, a backlight module and a display device including the same, and relates to the technical field of displaying. By means of the light guide plate, the backlight module and the display device including the same, the problem that the light-emitting center line of an LED light and the light-receiving center line of the guide plate are not coincident accurately in an existing backlight module is solved. According to the light guide plate, the backlight module and the display device including the same, the light guide plate is used for guiding the light emitted by the LED light on an LED light bar, a groove is formed in a light-entering face on the side portion of the light guide plate, and when the LED light is arranged in the groove in a clamping mode, the light-emitting center line of the LED light and the light-receiving center line of the guide plate are coincident. The light guide plate, the backlight module and the display device including the same are mainly applied to the field of liquid crystal display.

The invention discloses a double-sided synchronous knurling embossed wood veneer production line which is capable of automatically finishing knurling embossing of veneers. The production line comprises an industrial personal computer, a longitudinal hot press, a material preparation table, a material discharging table, an automatic plate edge trimmer, an automatic plate airing line, a base material lifting platform arranged at an outlet of the material preparation table, a push plate device arranged above the base material lifting platform, a feeding conveying mechanism arranged at an inlet ofthe longitudinal hot press, a first automatic centering and conveying device arranged at an outlet of the base material lifting platform and arranged one side of the feeding conveying mechanism, a second automatic centering and conveying device arranged at an outlet of the automatic plate airing line and arranged on one side of the discharging table, a paper lifting platform arranged on the otherside of the feeding conveying mechanism, a paper laying manipulator device arranged above the paper lifting platform, a visual system arranged above the paper lifting platform, and a discharging conveying mechanism arranged at an outlet of the longitudinal hot press, wherein an outlet of the discharging conveying mechanism is connected with an inlet of an automatic plate edge trimmer, the automatic plate airing line comprises a plate airing machine and a roller conveyer arranged at an inlet of the plate airing machine, and an outlet of the automatic plate edge trimmer is connected with an inlet of the automatic plate airing line.

The embodiment of the invention relates to the technical field of multi-optical-machine projection, and particularly discloses a correction method and device for a multi-optical-machine projection image, a multi-optical-machine projector and a readable storage medium. The method comprises the steps: acquiring a projection picture area of each optical machine; calculating coordinates of four angular points of an overlapping region of projection picture regions of all optical machines and a projection picture conversion relational expression of each optical machine; reversely converting the coordinates of the four angular points of the overlapping area to the projection coordinates of each optical machine to adjust the projection coordinates of each optical machine, so the projection imagesof the multiple optical machines can completely coincide with the projection images of the multiple optical machines, the projection brightness is improved, the assembly precision requirement of the projector with the multiple optical machines is not high, and the projector is suitable for wide popularization.

The invention relates to a cutting device, in particular to an equal dividing and cutting device for a cake. The technical problem of the invention is to provide the equal dividing and cutting devicefor the cake that is convenient to operate and accurate to cut. According to the technical scheme, the equal dividing and cutting device for the cake comprises a bottom plate, a holding device, a lifting device, guide plates, a knife rest and a cutting knife, wherein the top part of the bottom plate is provided with a worktable; the holding device used for holding the cake is arranged on the worktable; the lifting device is arranged on the worktable; the guide plates are symmetrically arranged on the worktable with respect to the holding device, and the two guide plates are each glidingly provided with a second sliding block; the knife rest is arranged at upper parts of the two second sliding blocks, and the knife rest is connected with the lifting device; and the cutting knife is detachably provided on the two second sliding blocks. The equal dividing and cutting device achieves the effects of convenient operation and precise cutting.

The invention relates to a tire grinding device. The tire grinding device comprises a positioning mechanism with a positioning head, and a grinding mechanism close to the positioning head. The positioning head is provided with a rotating shaft. A runner is arranged at the end of the rotating shaft. Protruding parts are arranged on the runner in the outer circumferential direction. The outer circumference of the runner is sleeved with an annular air bag. Grooves coinciding with the structures of the protruding parts are formed in the inner circumference of the annular air bag. The air bag is provided with an air nozzle. Protruding patterns are arranged on the outer surface of the air bag, incline by a certain angle in the radial direction of the annular new air bag and extend. The grinding mechanism is arranged on a vertical guide rod, a grinding wheel is further arranged on the grinding mechanism, and the positioning head can be close to the grinding wheel under driving of the drive mechanism. By means of the air bag, a positioning mechanism made of metal or other hard materials is replaced in the prior art, the positioning mechanism conducts full-area fixing on a tire in an inner cavity of the tire, and after the air bag is fully inflated with air, the inner cavity of the tire can be inflated fully through the air bag, and the inner portion of the tire is supported; and during grinding wheel grinding, the grinding position is not prone to being sunk.

The invention provides a high-precision combined calibration and butt-joint method and a high-precision combined calibration and butt-joint mechanism for an infrared imaging system, which are mainly used for solving the problem that the verticality precision of the optical axis of an optical imaging system and an imaging focus plane, the verticality accuracy of the optical axis of the optical imaging system and the central normal of the target surface of an imaging focal plane and the verticality accuracy of the image plane of the optical imaging system and an imaging focal plane cannot be ensured in the conventional image plane but-joint process. According to the method and the mechanism, a high-precision dual-shaft lathe is used for clamping at one time, and meanwhile turning machining of the butt-joint reference surface of a focusing plane assembly and the flange mounting end face of an optical lens is realized after a given adjusting target is achieved and the adjusting precision is reached, so that the parallelism of two planes is ensured, and assembling errors caused by earlier assembling loops of the focal plane assembly and optical lens are fully eliminated.

The invention discloses a spherical surface automatic centering method applied to spherical surface optical element surface defect detection. The method comprises the following steps that a spherical surface centering unit is initialized, and then a spherical surface optical element is moved to an initial position; Z-direction scanning is performed, and the clearest crosshair image is found by utilizing an image entropy definition evaluation function in the scanning process; then whether the crosshair is a surface image or a spherical center image is judged; if the crosshair is the surface image, the spherical center image is found through scanning along Z-direction, and radius of curvature of the spherical surface optical element is measured; if the crosshair is the spherical center image, the optical axis of the spherical surface optical element is enabled to be overlapped with the optical axis of the spherical surface centering unit through movement; and finally fitting is performed on the center of the crosshair image by a least square method optimal circle fitting method to obtain movement tracks, calculation of the maximum deviation of the crosshair image is completed, and the maximum deviation is judged so that shafting consistency adjustment is completed. Automatic centering of the spherical surface optical element is realized so that centering efficiency and centering precision are greatly enhanced.

The invention provides a control method and a control system for the width centering of a steel coil carried by a steel coil car. The control system comprises a saddle seat position, a ground roll position, a drum, the steel coil car and a track for the traveling of the steel coil car, wherein a V-shaped saddle seat capable of lifting up and down is arranged on the steel coil car; an absolute value rope encoder is arranged below the track; a steel coil car retreat limit position travel switch, a steel coil car advance limit position travel switch and a steel coil car speed-reducing position travel switch are respectively mounted below the track; a coil-contacting approach switch, steel coil width detection correlation switches and a control module are further arranged above the track. The control system is simple, and accurate in width centering effect; and through the application of the control system, the degree of automation can be greatly improved, and the operating efficiency of a machine set can be improved.

The invention provides a camera module and an assembling process thereof. The camera module comprises a lens, a lens seat, an image sensor assembly and an anti-loosening screw, the bottom of the lensis provided with external threads; a limiting ring is arranged in the middle of the lens, and a positioning guide step is arranged between an external thread at the bottom of the lens and the limitingring; the lens seat comprises a lens assembling hole, the lens assembling hole is arranged in the lens seat in a penetrating manner, and the upper end part of the lens assembling hole sinks to form abearing table; an annular boss is formed at the bottom of the lens assembling hole and is provided with an internal thread; a positioning guide cylinder is arranged between the bearing table and theannular boss; the anti-loosening screws are used for fixing the lens and the lens seat and fixing the lens seat and the image sensor assembly, so that the stability of connection between the lens andthe lens seat and between the lens seat and the image sensor assembly is ensured, and the optical axis of the lens coincides with the normal of the image sensor; the camera module provided by the invention is assembled by taking the lens seat as a reference, so that the yield of the camera module is effectively improved.

The invention relates to a flange structure applicable to an infrared thermal imaging module, comprising a movement frame, a flange ring and clamping jaws. The movement frame is disposed at one side of the flange ring. The movement frame and the flange ring are connected by limiting guide pins, and the limiting guide pins can limit the angle of rotation of the flange ring relative to the movement frame. The flange ring is provided with strip-shaped hollow first slots, and the clamping jaws are arranged in the first slots. The middle of each clamping jaw is rotationally connected with the movement frame through a rotating shaft. One end of each clamping jaw can abut on a lens inside the flange ring, and the other end of each clamping jaw can abut on the edge of the corresponding first slot. Compared with the prior art, the flange structure of the invention is applicable to multiple different movement and lens combinations, has a wide range of application, is low in cost and high in speed of combination, and enhances the imaging effect of the movement and the lens.

The invention discloses a double-sided synchronous patterned and embossed wood veneer production system and management method. Through the production system and management method, double-sided synchronous patterning and embossing of a wood veneer can be automatically completed, and maintenance and early warning can be carried out. The production system comprises a management system, a material preparation table, a discharging table, an automatic plate drying line, a base material lifting platform arranged at an outlet of the material preparation table, a pushing plate device arranged above thebase material lifting platform, a feeding and conveying mechanism, a longitudinal hot press, a discharging and conveying mechanism, an automatic plate trimming machine which are connected in sequence, a first automatic centering and plate conveying device arranged at the outlet of the base material lifting platform and on one side of the feeding and conveying mechanism, a second automatic centering and plate conveying device arranged at the outlet of the automatic plate drying line and on one side of the discharging table, a paper lifting platform arranged on the other side of the feeding andconveying mechanism, a paper paving manipulator device arranged above the paper lifting platform and a visual system; the automatic plate drying line comprises a plate drying machine and a roller conveyer arranged at an inlet and outlet end of the plate drying machine; and an outlet of the automatic plate trimming machine is connected with an inlet of the automatic plate drying line.

The invention provides a lenticular grating based LED stereoscopic display screen device with a great many of viewpoints. The display screen device comprises an LED planar display screen and human-eye watching viewpoints, an arc lenticular grating is arranged between the LED planar display screen and human-eye watching viewpoints, the LED planar display screen is arranged along the axis x and symmetric by taking the axis x as the center, the vertex of a cylindrical lens of the intermediate arc lenticular grating is positioned in the coordinate origin, an image side of the LED planar display screen is positioned in the focal plane of the cylindrical lens of the arc lenticular grating, the width of sub-pixel is t, the lenticular thickens of the arc lenticular grating is d, distance between the cylindrical lens of the arc lenticular grating and the LED planar display screen is s, the human-eye watching viewpoints are positioned in positions whose distance to the cylindrical lens of the arc lenticular grating is L, and the distance between the eyes is set as e. A 3D structure with a static effect as well as a 3D image with a dynamic effect can be realized.

The invention provides a preprocessing technology for acquiring difference images, in particular a method for recovery processing of a horizontal and longitudinal pulling and pressing deformation, a rotational deformation and a translation deformation of two input digital images which have specific deformation step by step, realizing image regitration, finally acquiring two difference images. The specific deformation images have one or more deformations of horizontal and longitudinal pulling and pressing deformation, rotational deformation and translation deformation, and the horizontal and longitudinal pulling and pressing deformation is generated at last. The invention is characterized in that for two input images, regardless whether or not having relative deformation, the second image is carried out recovery processing for deformations of horizontal and longitudinal pulling and pressing deformation, rotational deformation and translation deformation in order, common parts of two images are overlapped completely, then image difference is executed, a image which shows different portions of common parts of two images is input. The method can compare, recover and difference input images automatically to acquire clear difference images.

The invention relates to a bent pipe device, and belongs to the field of bent pipe machining devices. The bend pipe device solves the problem that a bent pipe is less in bending specifications. The bent pipe device comprises a bottom plate, a punch and a bent head core rod. The bottom plate is provided with a core rod traction assembly and a detachable bent pipe forming die. The bent pipe forming die is provided with a bent pipe forming cavity. The bent pipe forming cavity comprises a feed opening and a discharge opening. The core rod traction assembly comprises a rotating shaft, a transmission rod and a drive unit. One end of the transmission rod is fixed to the rotating shaft. The other end of the transmission rod is provided with a transverse track. The bent head core rod is fixed to the transverse track and moves along the transverse track relative to the bottom plate. The bottom plate is provided with a vertical track. The rotating shaft is arranged at the vertical track. The drive unit drives the rotating shaft to move along the vertical track relative to the bottom plate. The bent head core rod conducts circumference motion along with the core rod traction assembly.