18results about How to "Reduce assembly accuracy" patented technology

The invention discloses a proportional electromagnet and an electromagnetic valve. The technical problems that an existing proportional electromagnet is large in size, high in assembly precision requirement and poor in armature position detection precision are mainly solved. The magnetic shell is provided with a cylindrical cavity along the central axis; the iron core is relatively fixed in the cylindrical cavity and is provided with an armature moving cavity along the central axis; the winding is wound between the magnetic shell and the iron core; the armature is movably embedded in the armature moving cavity; the core cap is arranged at one end of the iron core and is used for sealing the armature moving cavity; the magnetic sensor is embedded in the core cap and is used for detecting the position of the armature; and the thickness direction of the magnetic sensor is the same as the movement direction of the armature. The proportion electromagnet has the advantages of being small in size, wide in application range, high in armature action position control precision, easy to assemble, high in yield and the like.

The mobile air conditioner comprises a shell, a horizontal partition plate is arranged in the shell and divides the shell into an upper cavity and a lower cavity, a first volute assembly made of heat preservation materials is arranged in the upper cavity, a first volute cavity is formed in the first volute assembly, an evaporator is arranged at the air inlet end of the first volute cavity, and a second volute assembly made of heat preservation materials is arranged at the air outlet end of the first volute cavity. The air outlet of the first volute cavity faces upwards; a second volute assembly is arranged in the lower cavity, a second volute cavity is formed in the second volute assembly, a condenser is arranged at the air inlet end of the second volute cavity, and the air inlet end of the second volute cavity and the air inlet end of the first volute cavity are located on different faces of the shell. The mobile air conditioner with the heat preservation air cavity is compact in structure, convenient and rapid to assemble, high in precision, low in working noise and power consumption, large in air outlet amount, long in air supply distance and good in heat dissipation performance, continuous and stable refrigeration of the mobile air conditioner is guaranteed, and the using effect is good.

This invention relates to prism assembly and calibration technology. To address the problems of low assembly efficiency and inability to guarantee assembly accuracy in existing curved prisms, a method for aligning curved prisms is proposed. First, based on the relationship between the curved prism and the optical system, the position coordinates of the two theoretical sphere centers of the curved prism are calculated. Then, the position coordinates of the two sphere centers are located using a coordinate measuring system, and target balls are placed at the corresponding position coordinates of the two theoretical sphere centers. A first centering instrument and a second centering instrument are used to align the target balls at the position coordinates of the two theoretical sphere centers, and then the first and second centering instruments are fixed. The target balls at the position coordinates of the two theoretical sphere centers are removed, and the curved prism is installed into the optical system. The curved prism is adjusted, and the two actual sphere centers on the curved prism are observed through the first and second centering instruments until the two actual sphere centers coincide with the two theoretical sphere centers, thus completing the assembly and calibration of the curved prism.

The technical scheme discloses a cover clamping device of a glue binding machine, which comprises a driving assembly, a first translation assembly, a second translation assembly, a cutter plate assembly and a clamping table plate. The driving assembly drives the first translation assembly and the second translation assembly to move in a step-by-step intermittent mode. The step-by-step intermittent mode refers to a single-morph relative motion mode of the two translation assemblies. The first translation assembly is provided with a cam and a clamping sliding block. The cam intermittently drives the clamping sliding block to reciprocate. The second translation assembly is provided with a driving gear and a rack. The driving gear intermittently drives the rack to reciprocate. The cutter plate assembly is provided with two cutter plate sliding blocks which are respectively fixed to the first translation assembly and the second translation assembly. The clamping table plate is provided with a sliding groove. The cutter plate sliding blocks reciprocate in the sliding groove. The technical scheme solves the technical problem of designing a cover clamping device which is driven by a single-morph step-by-step independent operation.

An adjustable furniture stable pressing and rebounding structure comprises a movable slide and a fixed slide which slide and open and close with each other, a movable part and a pressing action component are arranged on the movable slide, and a pressing and rebounding device is arranged on the fixed slide; the pressing action component comprises a pressing bracket and an adjusting part, the pressing bracket is fixedly arranged on the movable slide, the adjusting part is adjustably and movably arranged on the pressing bracket, and has a pressing and rebounding action with the pressing and rebounding device; the movable slide is acted on by a tool or manually, and the movable slide is driven to slide on the fixed slide, and the movable slide automatically slides and opens on the fixed slide through the interaction between the adjusting part and the pressing and rebounding device when sliding; the mutual pressing and rebounding action position between the movable slide and the fixed slide is adjusted by the adjusting part; when the movable slide slides to open or close to a certain position relative to the fixed slide, the movable part acts and drives the pressing and rebounding device to reset to the terminal initial position. The present invention has strong practicality through the improvement of the above structure.

The low-noise cooking utensil comprises a pot body, a pot cover and a first heat dissipation assembly installed on the pot cover, the pot cover comprises a surface cover and an inner cover, and the surface cover and the inner cover are matched to define a cooling cavity communicated with the outside. The first heat dissipation assembly comprises a first sealing ring, a mounting cavity and a first fan assembly arranged in the mounting cavity, a first ventilation hole is formed in the bottom wall of the mounting cavity, and air blown out of the first fan assembly flows to the cooling cavity through the first ventilation hole and then is discharged to the outside; a damping gap is formed between the first fan assembly and the side wall of the mounting cavity, and the first sealing ring is arranged between the first fan assembly and the bottom wall of the mounting cavity so as to prevent cold air at the air outlet end of the first fan assembly from flowing to the damping gap. According to the cooking utensil, noise can be effectively reduced, and the air cooling effect can be improved.

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body and a connecting sleeve. The tool body has a second end and a first end arranged opposite to each other in a front-rear direction. The first end is adapted to be connected and fitted with a spindle, and the second end has a mounting cavity for accommodating a transducer. A wireless receiving unit is provided on the outer periphery of the tool body. The connecting sleeve is connected to the second end and arranged coaxially with the tool body. An outer shell is fitted onto the outer periphery of the connecting sleeve through a bearing, wherein the inner diameter of the bearing is less than or equal to the outer diameter of the second end. Therefore, by placing the bearing between the connecting sleeve and the outer shell, the bearing does not occupy the outer periphery space of the tool body, which reduces the axial dimension of the tool body, thereby improving the rigidity of the tool body and reducing the overall axial dimension of the ultrasonic tool holder. It also increases the structural dimensions of the transducer and reduces the radial dimension of the bearing, thereby improving ultrasonic machining performance.

The invention provides a wall-mounted clothes treatment device which comprises a barrel, a front shell assembly, a cover plate and an automatic putting assembly, the automatic putting assembly is fixedly connected with the barrel and provided with a putting opening, the front shell assembly is arranged outside the barrel and the automatic putting assembly, the front shell assembly is provided with an opening part, the opening part is right opposite to the putting opening, and the cover plate is fixedly connected with the barrel. The cover plate is arranged in the opening part, the cover plate is hinged to the front shell assembly or detachably connected with the front shell assembly and used for opening or closing the opening part, and a sealing structure is arranged between the cover plate and the automatic throwing assembly; the cover plate is used as a part of the front shell assembly and is separated from the automatic putting assembly, so that a gap between the cover plate and the front shell assembly can be effectively reduced, the integral aesthetic degree of the clothes treatment device on the front side vision can be improved, the front shell assembly and the cover plate cannot generate space interference with the assembly of the automatic putting assembly, and the assembly efficiency is improved. And the manufacturing size precision and the assembly precision of related parts are reduced.

The present application relates to the field of battery technology, and discloses a cylindrical battery structure including a cover plate and a housing. The cover plate includes a cover plate main portion and a cover plate connecting portion fixedly connected to each other. One of an edge of the cover plate connecting portion and an edge of the housing is bent to form a bent portion, and another of the edge of the housing and the edge of the cover plate connecting portion is bent to form a hook portion. The hook portion is configured to hang on the bent portion to connect the cover plate and the housing. The cylindrical battery structure disclosed in the application has simpler connection mode, lower connection cost, and faster connection. In addition, the connection mode has lower requirements on assembly accuracy of workpieces in the housing.

The invention relates to the technical field of hydraulic support manufacturing, in particular to a positioning tool for a hydraulic support structural part, the structural part and a positioning method. The positioning device comprises a positioning piece and a positioning plate, the sleeve is provided with a through insertion hole perpendicular to the axis of the sleeve, the positioning piece comprises a first pin shaft and a second pin shaft which are parallel and have flush ends, and the first pin shaft or the second pin shaft can be inserted into the insertion hole and can be attached to the insertion hole; the positioning plate comprises a plate body, the plate body can be clamped on the side protection plate in the mode of being attached to the inner side wall of the side protection plate, an arc-shaped groove is formed in the plate body, and the arc-shaped groove and the sleeve are coaxial. By arranging the positioning piece and the positioning plate, not only can the perpendicularity of the sleeve be detected and the assembly error of the sleeve be reduced, but also the mounting position of the hinge seat can be positioned so as to improve the subsequent hinge precision of the guide rod and the hinge seat.

The utility model relates to the field of mould guide pillar automatic assembly, especially a kind of precision mould guide pillar automatic assembly unit.It includes press fitting machine, pressing plate and auxiliary structure, the side of press fitting machine is equipped with control button, the inner wall of press fitting machine is equipped with electric push rod, the output of electric push rod is equipped with push plate, the lower surface of push plate is fixed with pressing plate by means of auxiliary structure, the inner wall of press fitting machine is equipped with adjusting structure, the adjusting structure includes fixed plate, the fixed plate is fixedly connected with press fitting machine, the upper surface of fixed plate is equipped with two connecting grooves, the inner wall of two connecting grooves is slidably connected with two locating blocks.The precision mould guide pillar automatic assembly unit provided by the utility model can position the mould, making the assembly process of guide pillar and mould more stable and safe, avoiding the need for personnel hand to hold during the assembly process of guide pillar and mould, which not only improves safety but also improves assembly efficiency.

A high-voltage disconnector is connected between the isolation intervals of at least one phase busbar, and includes a contact assembly, a moving assembly and a traction assembly. The contact assembly is connected to the traction assembly, and the contact assembly is slidably matched with the busbar through the moving assembly. The traction assembly includes a drone, and the drone can drive the contact assembly to reciprocate between the isolation intervals along the axis direction of the busbar to connect or disconnect the isolation intervals. A high-voltage disconnector of the present invention does not have a complex operating mechanism and transmission mechanism. The contact assembly performs linear reciprocating motion under the cooperation of the moving assembly and the traction assembly. The drone is used to drive the opening and closing of the contact assembly, and the insulator can be further omitted, making its structure and the coordination between the various mechanisms simple, reducing the requirements for assembly accuracy and degree of coordination, and the overall space occupied is small.

The title of the present application is "Multi-axis hinge device and electronic equipment using the same". The present invention provides a multi-axis hinge device, which includes: a space portion, which is formed between a substrate, a front side plate and a rear side plate, and accommodates the folded portion generated by the folding of a flexible display panel when the first shell and the second shell are closed; a synchronous rotation mechanism, which causes the front side plate and the rear side plate to rotate synchronously with the opening and closing of the first shell and the second shell; a force-applying mechanism, which applies force to the front side plate and the rear side plate in the closing direction, and maintains the closed state and the open state of the front side plate and the rear side plate. The force-applying mechanism includes: a compression coil spring, which is compressed in the front-to-back direction along the substrate; a pair of sliding cams, which are arranged at both ends of the compression coil spring; a pair of cam followers, which cause the sliding cam to slide through the rotation of the first hinge pin and the second hinge pin, and compress the compression coil spring in the front-to-back direction.

The present invention provides a piezoelectric inchworm rotating motor, comprising an end cover for fixed support and a drive clamping integrated structure, wherein the end cover is connected to one side of the drive clamping integrated structure, and the other side of the drive clamping integrated structure is connected to a sleeve; the piezoelectric inchworm rotating motor described in the present invention, the arrangement of the drive clamping integrated structure makes the entire motor not only small in size and compact in structure, and can achieve self-locking, but also reduces the processing and assembly accuracy of the components constituting the motor.

This invention discloses a sieving system and its working method for titanium powder particle size classification. The system includes a sieving module, an air supply module, and a vacuum module. The sieving module includes a vacuum vibrating screen with a feed inlet, an exhaust port, an air inlet, a pressure detection port, and a discharge port. The feed inlet is connected to a material source via a feed pipe. The exhaust port is connected to the vacuum module via an exhaust pipe. The air inlet is connected to the air supply module via an air inlet pipe. The pressure detection port is connected to a pressure testing instrument via a pipe. The discharge port is connected to a receiving device via a discharge pipe. Valves are installed on the feed pipe, exhaust pipe, air inlet pipe, and discharge pipe. The working method includes target vacuum extraction to create an inert atmosphere, particle size classification sieving, and continuous sieving operation. This invention features minimal civil engineering work, rapid vacuum extraction, a simple process, quick start-up, continuous operation, safety and reliability, and low construction costs.

The invention discloses a separating type intelligent discharging mechanism for food processing. The separating type intelligent discharging mechanism comprises a processing base, a side positioning beam, an upper floating plate, a top positioning plate, an upper pressurizing block, a lower pressurizing feeding assembly and an upper driving module. The positioning motor drives the movable positioning columns to move and clamp and position the movable positioning columns on the two sides of the separation block, so that the separation block and the rotary feeding die frame are integrally positioned, the rotary feeding die frame is driven to rotate through the rotating assembly, the rotary feeding die frame drives the separation block to turn over and discharge materials together, and then the movable positioning columns are reset for next operation. Therefore, a traditional operation structure and mode that a lower pressurizing block ejects food upwards for discharging are abandoned, the discharging stability is achieved, the assembling difficulty and precision are reduced, and the forming quality of the food and the subsequent processing quality are improved.

The invention provides an assembling method of a nitrogen spring. The nitrogen spring is assembled between two joints of the industrial robot, and the assembling method comprises the steps that pretreatment is conducted, specifically, the nitrogen spring is subjected to pressure relief in advance to be in an airless state; an assembling step: firstly connecting the first end of the nitrogen spring with the first joint located at the upper part of the two joints, and then lengthening the second end of the nitrogen spring and connecting the second end of the nitrogen spring with the second joint located at the lower part; and an inflation step, wherein an inflation device is used for inflating the nitrogen spring, and assembling of the nitrogen spring is completed. The nitrogen spring assembling device solves the problem that in the prior art, the nitrogen spring assembling efficiency and precision are low.

The utility model discloses a floating type electric connector, which comprises a first connecting end and a second connecting end, the first connecting end comprises a positioning ring and a conductive terminal, and the conductive terminal is fixed in the positioning ring; the second connecting end comprises a platform and a jack matched with the conductive terminal, and the jack is located on the platform; a first groove is formed in the positioning ring, and a water leakage hole communicated with the first groove is formed in the lower end of the first connecting end; a first sealing ring is arranged at the lower end of the first connecting end, and a second sealing ring is arranged between the second connecting end and the first connecting end; a first hollow part is arranged between the conductive terminal and the first sealing ring; and a second hollow part is arranged between the platform and the second sealing ring. According to the floating type electric connector, the first connecting end and the second connecting end are arranged, the first hollow part and the second hollow part play a role in buffering floating in the installation process of the connector, the assembly precision between the first connecting end and the power utilization end and the assembly precision between the second connecting end and the battery are reduced, and the installation efficiency of the floating type electric connector is improved.