23results about How to "Achieve initial positioning" patented technology

The invention belongs to the technical field of visual light equipment, and relates to a night visual function tester which comprises a shell and a controller, a dioptric lens and a display screen are arranged in the shell, two groups of holes are formed in the rear side of the shell, the display screen is arranged between the holes and the dioptric lens, and a compression motor is arranged on the inner side wall of the shell. The output end of the compression motor is connected with the refraction lens, eye movement tracking modules are arranged at the two ends of the front side of the shell correspondingly, and the compression motor, the display screen and the eye movement tracking modules are all electrically connected with the controller. Through forward and backward movement of the dioptric lens, the imaging distance can be adjusted from 0.1 m to infinity, and the night vision function testing device is suitable for night vision function testing of different myopic people; a Micro-oled display screen is adopted, so that the adjustment of the brightness of eyes from 0 to 3000nit is realized; the distance between the two dioptric lenses is adjusted through the interpupillary distance adjusting module, so that the centers of the dioptric lenses are accurately aligned with the pupil center of a testee, and the accuracy of a test result is improved.

The utility model discloses an automotive interior flowing water effect atmosphere lamp, which comprises a lamp base. An assembling mechanism is arranged on one side of the lamp base. The assembling mechanism includes a fixing plate, the outer side of the fixing plate is fixedly connected with the lamp base. Magnets are embedded on both sides of the front surface of the fixing plate. A fixing pin is fixedly connected to the front surface of the magnet. An iron block is inserted on the surface of the fixing pin. A lamp board is fixedly connected to one side of the iron block. Connecting blocks are fixedly connected to both the top and the bottom of the lamp board. For this automotive interior flowing water effect atmosphere lamp, by setting the assembling mechanism, during assembly, rotate the turning handle on one side of the rectangular plate to drive the rotating shaft to rotate, so that the cloth belt is wound around the rotating shaft and pulls the adjusting rod to move. The lamp board is adsorbed by the magnet on the fixing plate of the lamp base through the iron block on one side to achieve preliminary positioning. At the same time, the iron block is inserted into the fixing pin on the surface of the magnet to limit the horizontal displacement of the lamp board, and the pre-fixing of the lamp board and the lamp base is completed.

The application belongs to the technical field of steam turbine rotor processing, in particular to a drill jig for steam turbine rotor steam balance hole processing, which comprises a drill jig body, a bushing, a quick-change drill sleeve, a cylindrical pin and a set screw; the drill jig body is provided with a rectangular groove in the thickness direction; both sides of the bottom of the drill jig body are provided with through holes; the bushing is fixedly connected to the inside of one side of the through hole; the inside of the bushing is provided with the quick-change drill sleeve. The drill jig body with a "door" type structure is matched with the rectangular groove, which can quickly realize the preliminary positioning of the drill jig at the edge of the impeller, the radially limiting of the outer circle of the impeller is matched with the symmetrical distribution of the cylindrical pin, the center of the quick-change drill sleeve is accurately aligned with the positioning line, and the hole position deviation problem caused by the positioning deviation in the traditional processing is avoided; at the same time, the set screw at the bottom is stably pressed against the surface of the impeller spoke through the threaded connection, so that the drill jig can remain stable during the drilling process and prevent displacement caused by vibration.

The utility model discloses a woodworking carving machine with workpiece clamping device, including work table, the inside installation of work table has adjusting assembly, the top of work table is installed with clamping assembly, the top of work table is equipped with mobile arm, and mobile arm installs in the side of work table. It can be through the cooperation between adjusting assembly, clamping assembly and through slot, through the cooperation of motor, bevel gear no. 2, bevel gear no. 1, two -way screw rod and connecting block in adjusting assembly, can according to the length of wood flexible regulation the interval of two L shape placement board, realizes the preliminary positioning to wood, utilizes spacing slide and limit slide block and can adjust two fixed plate interval according to wood width, then through hydraulic rod drives the lower pressing plate and soft pad and clamps wood, can according to the length, width and thickness of wood all -round stable clamping, solved the problem that the existing carving machine is difficult to flexible and accurate clamping different length, width and thickness wood.

The application relates to the technical field of thrust ball bearing, and comprises a fixed plate and a PLC controller. Two positioning plates are fixedly connected to the upper surface of the fixed plate. A placing seat is fixedly connected to the upper surface of the fixed plate. The side surfaces, away from each other, of the two positioning plates are fixedly connected with electric push rods. The telescopic ends of the electric push rods are fixedly connected with adjusting push plates. The application specifically discloses a thrust ball bearing equipment. The electric push rods push the adjusting push plates, connecting blocks, connecting rods and arc-shaped clamping plates, so that the preliminary positioning of the bearing shell can be realized, the assembling efficiency is improved, the bearing shell position is monitored in real time by means of the PLC controller and a real-time monitoring module, the bearing shell is ensured to be in the specified position, the positioning precision is improved, when the bearing shell deviates, the PLC controller and the displacement adjusting module can control the electric push rods to adjust the position, the bearing shell is ensured to be located at the center position of the placing seat, the precise positioning function is realized, and the waste rate is reduced.

This invention discloses a three-dimensional electrical resistivity tomography (EDT) method for detecting cavities based on T-shaped electrode survey lines. A two-dimensional T-shaped electrode survey line advance detection observation system is constructed by deploying two mutually perpendicular survey lines (line 1 and line 2) behind the tunnel face. Electrode electrical resistivity data are collected for both vertical and parallel tunnels, and resistivity depth imaging maps are then established for each. The vertical imaging map determines whether the cavity is located to the left or right of the tunnel face, while the parallel imaging map determines whether it is located in front of or behind the tunnel face. This achieves preliminary two-dimensional planar positioning of the cavity. The detection space around the tunnel face is divided into target units, and through resistivity forward modeling and correlation calculation, correlation imaging results of each target unit are obtained. Ranges exceeding a threshold are delineated in the map, and combined with the preliminary positioning, the three-dimensional spatial location of the cavity is accurately determined, ensuring safe tunnel excavation.

The utility model discloses a tin soldering device for an electronic cigarette microphone, and relates to the technical field of tin soldering devices. The device comprises an operation table, a positioning mechanism is arranged on the upper side of the operation table, and the positioning mechanism comprises a positioning table located on the upper side of the operation table, a plurality of guide grooves formed in one side of the positioning table, a U-shaped frame arranged on one side of the positioning table and a transmission plate arranged in the U-shaped frame in a sliding fit mode. After the microphone is placed, the length of the telescopic mechanism is increased, at the moment, the transmission plate can drive the clamping blocks to slide again, so that preliminary positioning of the microphone is achieved, after the clamping blocks finish preliminary positioning of the microphone, the length of the telescopic mechanism is further increased, and at the moment, elastic pressure exerted on the microphone by the clamping blocks can be adjusted, so that the microphone is positioned more accurately. By means of the design, the device can flexibly meet the positioning requirements of microphones of different sizes, and it is ensured that all kinds of microphones can be accurately and stably positioned.

The invention relates to the technical field of rehabilitation training, and discloses a rehabilitation training robot with joint torque feedback, which comprises a shell, a cover plate is fixedly mounted on the left side of the top of the shell, a seat assembly extending to the top of the cover plate is arranged on the inner side of the shell, and two outer boxes are fixedly mounted on the right side of the inner wall of the shell. A supporting seat is fixedly installed at the bottom of the shell, a training mechanism extending to the outer sides of the outer boxes is arranged between the inner sides of the two outer boxes, an adjusting mechanism connected with the training mechanism and extending to the right side of the shell is arranged between the two outer boxes, and a fixing mechanism is arranged at the top of the training mechanism; according to the rehabilitation training robot with the joint torque feedback function, the training mechanism and the adjusting mechanism are arranged, the supporting plate slides along the guide rail, the purpose of adjusting the training intensity is achieved, and the purpose of replacing different models is achieved by arranging the fixing mechanism.

The utility model discloses a kind of laser cladding head parts, including workbench, the rotating table is arranged in the left side of workbench top, the adjusting assembly is arranged in the bottom of rotating table, and the telescopic arm is installed in the top of rotating table, the laser head is fixedly installed in the bottom of telescopic arm, the placing plate is fixedly installed in the right side of workbench top, the locating assembly is co-jointly arranged in the top of placing plate near front and back two sides, by being provided with spring, limit stop and limit block, before placing base material on the top of placing plate, two limit stops can be relatively moved, so that two limit stops respectively push the limit block on corresponding connecting strip to move, limit block stretches spring inside corresponding side groove, then base material is placed between two limit stops, and two limit stops are loosened, so that two limit stops are reset to middle under the elastic force of corresponding spring, clamped in the left and right sides of base material, the preliminary positioning of base material is realized.

This utility model relates to the field of lithium battery technology for electric bicycles and discloses a quick-release lithium battery module structure for electric bicycles. It includes a connecting frame and multiple lithium batteries. The connecting frame has multiple openings inside. Connecting frames are fixedly fitted onto the top sidewalls of each of the lithium batteries. The connecting frames are inserted into the openings, and fixing frames are fixedly connected to the top sidewalls of each lithium battery. The connecting frame fixedly fitted onto the top sidewall of each lithium battery inserts into the opening of the connecting frame, achieving initial positioning of the lithium battery. The fixing frames at the top of the lithium battery cooperate with the connecting frames to further restrict the axial displacement of the lithium battery, preventing it from falling out of the opening. The metal elastic strip in the rectangular groove inside the connecting frame is the core limiting component. Its end-positioning block is pushed outwards in its natural state and simultaneously inserts into the limiting slots of the connecting frame and the fixing frames, forming a double lock.

The utility model relates to photovoltaic support technical field, concretely is: a photovoltaic power generation support convenient to dismount, including the carrier plate, the one side of carrier plate is provided with solar panel, the back four sides of solar panel all are fixed with the locating block, the outer wall of locating block is equipped with the locating hole, the surface middle part of carrier plate is equipped with the sliding slot, and the driving assembly is installed in the sliding slot, the surface both sides of carrier plate all are equipped with the strip slot, and the inner chamber both sides of strip slot all are installed with the sliding block, and the lateral wall fixed connection of sliding block has the locating shaft, the inner chamber both sides wall of sliding slot all are equipped with the strip hole, and driving assembly penetrates strip hole and is connected with corresponding sliding block. The utility model discloses through rotating two -way threaded rod can drive the threaded slider of both sides to remove, and further can drive the locating shaft of both sides to remove to can realize quick and solar panel back's locating block and carry out the insertion or separate, to make can quick dismount solar panel.

The utility model provides a kind of economizer tube bank welding auxiliary alignment device, it is related to welding auxiliary equipment technical field, including bottom plate, further include: alignment subassembly, alignment subassembly includes the support seat being connected on bottom plate, in the utility model, the pipe body to be welded is placed in predetermined position, the output end of pneumatic cylinder promotes clamping block movement, and one end of pipe body is clamped and fixed, ensure the stability of welding process, subsequently, sliding block on guide rod is slid to predetermined position, limit rod and expansion spring drive pressure block down, by the elastic action of expansion spring, the other end of pipe body is limited by pressure block, prevent its displacement in welding process, ensure that pipe mouth accurate level alignment, second transmission motor drives rotating wheel rotation, drive rotating plate to rotate on support block, so that pipe body is rotated, convenient for pipe body to be welded, realize pipe body accurate positioning, stable clamping and rotating adjustment, guarantee welding alignment precision and welding efficiency.

This application discloses a quick-clamping planar structure for an elliptical camshaft end, relating to the field of camshaft technology. It includes a base plate with a pair of placement plates on its top surface. Each placement plate has an arc-shaped groove for engaging both ends of the camshaft. A movable block is positioned between the placement plates on the base plate, and the movable block has a pair of fixed clamping plates. One of the fixed clamping plates has a movable plate, and a guide rod extends through the fixed clamping plate. An adjusting rod is threaded onto the fixed clamping plate. The movable plate, in conjunction with the fixed clamping plate, clamps and fixes one cam of the camshaft. The combination of the fixed clamping plate, movable plate, guide rod, and adjusting rod can clamp and fix the cam in the middle of the camshaft. The increased clamping point in the middle effectively constrains the camshaft's circumferential and radial degrees of freedom, reducing minor shaking or twisting during machining or vibration, thereby improving machining accuracy and reducing dimensional deviations.

This utility model discloses a protective housing for a multi-cell integrated spot-welded battery pack, including upper and lower housing assemblies covering the battery pack, with locking components mounted on one side of each. The upper housing has a connecting block with a connecting hole on one side and a moving groove on the other side, with a mating plate at the bottom of the groove. The lower housing has a mating block matching the connecting block on one side and a mating plate on the other side, with locking components mounted on the upper and lower sides of the mating plates. The locking components include a push plate connected to the moving groove, a locking pin connected to the bottom of the plate, and a compression spring installed between the pin and the top of the mating plate. A fixed shaft is located at the bottom of the mating plate on one side of the lower housing, with a rotating locking plate connected to the shaft, and a locking rod matching the locking pin at the end of the plate. This housing is quickly positioned by the connecting block and the mating block, and locking and unlocking are achieved through the push plate, compression spring, and locking pin. The rotating locking plate enhances the locking effect, making operation simple and maintenance easy. Furthermore, the T-shaped moving block prevents the push plate from detaching, and the arc-shaped rotating locking plate is equipped with a bushing and a limiting ring, improving structural reliability.

The utility model discloses a kind of waste recovery devices for wet tissue production, relate to waste recovery device technical field.The utility model includes: placing cylinder, placing cylinder includes U-shaped fixed frame, U-shaped fixed frame is slidably fitted with U-shaped sliding frame, the opening side of U-shaped fixed frame is rotatably connected with fixed cover plate, the side of fixed cover plate is slidably fitted with sliding cover plate.The utility model can directly put waste by the one-way baffle of recovery box upper side, and realize quick storage by cooperation placing cylinder;When needing to expand storage space, pull U-shaped sliding frame along U-shaped fixed frame sliding, U-shaped sliding frame is driven sliding cylinder synchronous rising by connecting piece, while the shielding cylinder of sliding cylinder inside slides along fixed cylinder, telescopic rod between fixed cylinder and sliding cylinder synchronous extension, realize that recovery box overall structure is extended, flexibly adjust storage capacity, adapt to different production waste recovery needs in wet tissue production.

A fast and accurate butt joint device for PHC pipe pile mechanical connection comprises an upper outer hoop and a lower outer hoop, the upper outer hoop is fixed to an upper pipe pile through an upper flange, and the upper flange is adjusted to correspond to the position of an upper pipe pile end plate bolt through an upper positioner; the lower outer hoop is fixed to the lower pipe pile through a lower flange, and the lower flange is adjusted to correspond to the position of a bolt hole of an end plate of the lower pipe pile through a lower positioner. According to the fast and accurate butt joint device for mechanical connection of the PHC pipe piles, fast and accurate butt joint of the PHC pipe piles can be achieved, and work efficiency is improved.

The utility model discloses a flange type ventilation plug for civil air defense in the field of ventilation plugs, which comprises a ventilation main pipe, a ventilation branch pipe is bypassed by the ventilation main pipe, main pipe flanges are arranged at two ends of the ventilation main pipe, branch pipe flanges are arranged at the end parts of the ventilation branch pipe, and sealing covers are arranged at ports corresponding to the branch pipe flanges. The sealing cover comprises a cover plate, a blocking column is arranged on the side, facing the branch pipe flange, of the cover plate, external threads are arranged on the periphery of the blocking column, a short guide sleeve is arranged at the end of a column body, a sealing gasket is arranged at the bottom of the short guide sleeve and corresponds to a ventilation branch pipe channel, and internal threads matched with the external threads are formed in the inner wall of the ventilation branch pipe. The outer threads and the inner threads are trapezoidal threads, wear-resistant coatings are sprayed on the surfaces of the outer threads and the inner threads, a sealing groove is formed in the end face, corresponding to the cover plate, of the branch pipe flange, and an elastic sealing ring is arranged in the sealing groove. The core requirements of civil air defense engineering for quick opening and closing, high sealing performance and wartime impact resistance of the ventilation plug are met.

The utility model relates to clamping and fixing equipment field discloses a clamping and fixing device for aluminium alloy door and window processing, including fixed frame, the bottom of fixed frame is installed with a plurality of support frame, the front side and the back of fixed frame are all seted up with two adjusting grooves on the inner wall, and the sliding installation with same adjusting plate in the two adjusting grooves corresponding, the top fixed mounting of adjusting plate has the placing seat for aluminium alloy door and window support, the top fixed mounting of adjusting plate has the vertical board, and the one side fixed mounting of vertical board has push rod motor, and the output shaft of push rod motor penetrates vertical board and is fixedly installed with the push plate, and the one side fixed mounting of push plate has pressure sensor, the utility model has the advantages and effects that: through drive mechanism realizes the quick adjustment of different size door and window, utilizes the positioning mechanism to complete the preliminary positioning, and the clamping force is accurately controlled with the help of pressure sensor and controller, thereby effectively improving the versatility, precision and quality of aluminium alloy door and window processing.

The utility model discloses a quick mounting mechanism for an aero seat ground rail, which relates to the related field of aero seat ground rails, and comprises a bottom plate, and a nut is welded at the lower end of the bottom plate; the fixing sleeve is welded to the upper end of the bottom plate; the clamping blocks are movably arranged at the side opening of the fixing sleeve; the pressing shaft is in sliding fit with the guide hole of the fixing sleeve, and the outer conical surface of the pressing shaft is in contact with the side conical surface of the clamping block; the ground rail is arranged on the periphery of the main body of the fixing sleeve in a sleeving manner; the bolt penetrates through the pressing shaft, the fixing sleeve and the bottom plate and is in threaded connection with the nut; the bolt is screwed down, the bolt drives the pressing shaft to move downwards in the axial direction, the outer conical face pushes the side conical face to enable the clamping block to move outwards in the radial direction, the ground rail is clamped, and therefore the ground rail and the fixing sleeve are connected. The installation process is simple and fast, the installation time is greatly shortened, and the installation efficiency of the aero seat ground rail is effectively improved.

This invention relates to the field of photovoltaic inverter testing technology and discloses a performance testing device for photovoltaic inverters in a grid-connected photovoltaic system. The device includes a base, a testing mechanism at the top of the base, a lifting mechanism fixedly connected to the bottom of the base, and a clamping mechanism fixedly connected to the top of the lifting mechanism. The operating components include a bracket fixedly connected to the top of the base, a first motor fixedly connected to the surface of the bracket, and a pole fixedly connected to the right end of the first motor. This performance testing device for photovoltaic inverters in a grid-connected photovoltaic system, through the testing mechanism, causes the support frame and connecting double rings to move up and down, ultimately driving the support base to perform continuous and regular tapping operations on the surface of the workpiece. This tapping simulates the vibration environment that a photovoltaic inverter may encounter during actual use, thereby achieving vibration detection of the workpiece to evaluate its performance under vibration conditions.

The utility model relates to the technical field of automobile testing, and discloses an automobile back-row seat trunk impact test device which comprises a support, a sliding rail, a movable plate and a fixed plate, the movable plate and the fixed plate are located above the sliding rail, and positioning blocks are fixedly installed at the end, away from the support, of the fixed plate at equal intervals. Positioning columns are symmetrically installed at the positions, located at the two ends of the positioning block, of the top of the fixing plate, a first inserting groove is formed in the center of the positioning block, second sliding grooves are formed in the two ends, away from the positioning columns, of the top of the fixing plate, and a testing seat is arranged on the side, away from the support, of the fixing plate. According to the automobile back row seat trunk impact test device, primary positioning of a test seat is realized through plugging cooperation of a positioning block and a positioning groove and combination of vertical positioning of a positioning column and a positioning hole, a reinforcing plate is plugged and installed in three groups of slots I and slots II, and then connecting seats are plugged and installed at two ends of the reinforcing plate so that the reinforcing plate is connected with a fixing plate. Therefore, the stability of the test seat is enhanced, and the accuracy of test data is ensured.

The utility model relates to the technical field of angle steel flanges, and discloses an angle steel flange multi-angle synchronous bending device which comprises a bottom plate, sliding blocks penetrate through and are slidably connected to the two sides of the front end of the top of the bottom plate, a rack is fixedly connected to the middle of the top of each sliding block, and bolts are connected to the two sides of the top of each sliding block in a threaded mode. A support is fixedly connected to the two sides of the top of the bottom plate, a first motor is fixedly connected to one side of the support, a first two-way threaded rod is fixedly connected to the output end of the first motor, and connecting frames are in threaded connection to the two sides of the outer ring of the first two-way threaded rod. According to the angle steel flange positioning device, through cooperation of the first motor, the first bidirectional threaded rod, the connecting frame, the rotating plate, the top plate, the spring, the extrusion plate, the angle steel flange, the rotating shaft, the first gear, the rack, the sliding block and the bolt, preliminary positioning of the angle steel flange in the horizontal direction is achieved, the positioning accuracy is improved, and a stable foundation is provided for follow-up bending operation.