63results about How to "Keep the position fixed" patented technology

The invention discloses a small-space site foundation pit supporting system which comprises supporting walls located on the edge of a foundation pit, latticed columns vertically arranged in the foundation pit and horizontal supporting steel pipes transversely supported between the supporting walls on the opposite sides. A supporting platform used for being connected with the horizontal supporting steel pipes and vertically supporting the horizontal supporting steel pipes is arranged at the tops of the latticed columns. The invention further discloses a construction method for the small-space site foundation pit supporting system. According to the method, excavation and construction of the supporting system are carried out at the same time in a horizontal steel pipe supporting mode, so that supporting and excavation of the foundation pit are completed under the condition that existing surrounding buildings are not affected; the supporting platform is arranged on the latticed column, limiting and fixing of the horizontal steel pipe support or the inclined steel pipe support in the horizontal direction and the height direction are guaranteed, and then the supporting strength of the horizontal steel pipe support or the inclined steel pipe support is guaranteed.

The utility model discloses a photoelectric platform stabilizing device, the utility model relates to photoelectric platform technical field, including base, the middle part fixedly connected with fixed block in the base inner wall, the fixed block inner wall fixedly connected with first motor, the output end transmission of first motor has the rotary disc, the upper surface fixedly connected with stabilizing device of rotary disc. This photoelectric platform stabilizing device, through setting stabilizing device, positive and negative toothed rod cooperation limiting rod drive clamping stable frame synchronous relative motion can realize even clamping to different size photoelectric equipment, avoid equipment to shake, the cover plate further prevents equipment from falling off, ensure that the equipment is fixed in the position in the working process, when the first motor drives the rotary disc to rotate, the limiting ring on fixed plate and the limiting block under rotary disc accurate adaptation, limit the radial displacement of rotary disc, reduce the shake, guarantee the stability when azimuth adjustment.

The utility model provides a novel gastric lavage tube and gastric lavage barrel device, which relates to the technical field of medical equipment and comprises a gastric lavage barrel body, a fixing plate mounted in the gastric lavage barrel body, a water suction pump and a negative pressure pump mounted at the top of the fixing plate, a gastric lavage tube connected to the top of the water suction pump, and a fixing block of an annular structure arranged at the top of the gastric lavage barrel body. An annular fixing frame is arranged at the top of the fixing block, and the gastric lavage tube penetrates through the fixing block and the fixing frame; the extrusion assembly is arranged in the fixing block; the clamping assembly is arranged on the fixing frame; the adjusting assembly is arranged between the gastric lavage barrel body and the fixing frame. According to the device, the temperature of gastric lavage liquid can be known in real time through the temperature sensor and the display screen, the gastric lavage tube can be fixed at different heights through cooperation of the fixing assembly and the adjusting assembly, it is guaranteed that the position of the gastric lavage tube is fixed, the perfusion flow of the gastric lavage liquid in the gastric lavage tube can be changed through the extrusion assembly, and it is guaranteed that the perfusion speed is appropriate.

The application relates to the technical field of mechanical transmission, and discloses a bearing interference mounting device based on a turbine screw rod speed reducer, which comprises a bearing mounting device, the bearing mounting device comprises a portal frame, a turbine screw rod speed reducer is fixedly installed on the portal frame, a bearing mounting sleeve is connected to the output end of the turbine screw rod speed reducer, a workpiece clamping module for bearing and fixing a workpiece to be mounted is arranged below the portal frame, a thrust bearing for isolating rotary motion is installed in the bearing mounting sleeve, the turbine screw rod speed reducer is used for converting input rotary torque into axial linear thrust, and the thrust bearing and the bearing mounting sleeve act on the mounted workpiece. According to the application, the counterforce of the press fitting is enclosed in the structure, the dependence on a heavy base is eliminated, pure axial nondestructive press fitting is realized through isolation of rotary friction, and the equipment volume and assembly energy consumption are reduced.

The utility model discloses an automatic flexible freight bag girdle sewing machine which comprises a machine frame, a sewing machine head installed on the top of the machine frame, a workbench arranged on the top of the machine frame, a sewing channel formed in the top of the workbench, a feeding mechanism arranged on the outer side of the machine frame, a limiting mechanism arranged on the outer ring of a needle rod of the sewing machine head, and a girdle disc installed on the top of the sewing machine head. By means of the feeding mechanism, the flexible freight bag can be conveyed to a sewing station of the workbench, meanwhile, the shroud ring is released from the shroud ring disc and directionally guided to the sewing position through the second guide roller, and a needle rod of the sewing machine head is matched with the sewing channel to complete automatic sewing of the shroud ring and the flexible freight bag. By means of the structure, it can be guaranteed that the position of the shroud ring is fixed in the sewing process, wrinkles, position deviation and the like are avoided, accurate positioning and efficient sewing of the container bag and the shroud ring are achieved through the structure, production efficiency is improved, and consistency of sewing quality is guaranteed.

The utility model relates to a remote controller type electric tractor, and aims to solve the technical problems that a battery mounting structure of a current small-sized electric tractor is compact and needs to be matched with a limiting structure for mounting, so that the dismounting operation is tedious, and time is wasted, the remote controller type electric tractor comprises an electric tractor main body and a control box, a battery is installed in the battery box, two folding lifting assemblies are fixedly installed on the upper surface of a side plate at the bottom of an inner cavity of the battery box, a bottom plate connected with the folding lifting assemblies is fixedly arranged at the bottom of the battery, and supporting blocks connected with the bottom plate are fixedly arranged on the upper surfaces of the folding lifting assemblies. The battery mounting structure has the advantages that the battery mounting structure is simple, a limiting structure is omitted, the structural cost is reduced, the limiting and fixing effects are stable, the loosening problem is not easy to occur, the effect of quick disassembly and assembly is achieved, and the disassembly and assembly time is saved.

The invention relates to the technical field of tool conveying, and discloses a tool trolley and a tool trolley positioning assembly. The tool vehicle comprises a carrying platform used for carrying parts; the mounting positions are distributed on the carrying platform at intervals; the multiple first limiting structures are arranged on the mounting positions correspondingly, and at least one placement area is formed among the multiple first limiting structures; the part can be placed in the placing area, and the peripheral side of the part abuts against the first limiting structures so that the multiple first limiting structures can limit the part. When a part is placed in the placing area, multiple positions on the peripheral side of the part can abut against the multiple first limiting structures, so that the part is limited, displacement of the part on the carrying platform during transportation is avoided, and it is ensured that the position of the part on the tool vehicle is fixed; therefore, the in-place precision of the part transported by the tool vehicle when the part reaches the next station is ensured.

The utility model discloses a high-balance aluminum alloy hub, which relates to the technical field of hubs and comprises a hub and a mounting groove arranged on the side wall of the hub, a mounting box is slidably arranged in the mounting groove, a balance block is arranged in the mounting box, guide blocks are fixedly arranged on two sides of the outer wall of the mounting box, guide grooves are arranged on two sides of the inner wall of the mounting groove, and the balance block is arranged in the guide grooves. A box cover covers the outer side of the mounting box, a limiting plate is arranged on the outer wall of the mounting box through an elastic mechanism, a limiting groove is formed in the top of the inner wall of the mounting groove, and the limiting plate is inserted into the limiting groove. According to the installation groove, the installation box, the guide groove, the guide block, the limiting groove, the limiting plate and the elastic mechanism, after the balance block is arranged in the installation box, the installation box and the interior of the installation groove can be connected in a limiting and inserting mode, it is guaranteed that the position of the installation box is fixed, the balance block cannot fall off even if the hub is vibrated frequently, and the service life of the hub is prolonged. And the use balance of the hub is improved.

The invention relates to the technical field of train headlamp light beam adjustment, and discloses a train headlamp light beam adjustment auxiliary receiving device and method.A first sliding groove is formed in the edge of the bottom of the front side face of a receiving plate, and a laser range finder is arranged in the middle of the first sliding groove; a positioning piece is slidably arranged on the first sliding groove and used for vertically fixing the laser pen so that the receiving plate can be adjusted to be perpendicular to the train head through laser beams emitted by the laser pen. The sliding piece comprises a transverse sliding piece arranged on the top edge of the front side face of the receiving plate in a sliding mode and a vertical sliding piece arranged on the vertical side edge of the front side face of the receiving plate in a sliding mode, the sliding piece is used for installing a laser pen, and a shot transverse laser beam and a shot longitudinal laser beam intersect at one point as a technical requirement fixed point position. The train headlamp is adjusted by comparing the technical requirement fixed point position with the headlamp beam projection point; according to the train headlamp adjusting device, different train headlamps can be rapidly adjusted before leaving a factory, adjustment is accurate, and errors are small.

The utility model discloses an injection molding product surface functionalization modification treatment device which comprises a bottom plate, the middle end of the top of the bottom plate is fixedly connected with a frame, the upper end of the outer side of the frame is fixedly connected with a bag-type dust collector, and the bottom of the outer side of the bag-type dust collector is fixedly provided with a dust collector through bolts. The air inlet end of the dust collector communicates with one side of a bag-type dust collector through a pipeline, and the top of the bag-type dust collector is fixedly connected with a second dust collection plate through a pipeline. According to the utility model, the bag-type dust collector is matched with the dust collector, and the second dust collection plate, the second dust collection cover, the first dust collection plate and the first dust collection cover are arranged, so that dust and chippings generated in the surface modification treatment process of injection molding products, such as polishing, can be effectively sucked away in time. The cleaning of the working environment can be kept, the risk that operators inhale dust is reduced, the body health of the operators is protected, the pollution of dust to the treatment device and injection molding products can be avoided, and the treatment quality is improved.

The utility model relates to the technical field of hygienic products, and discloses a sleeve pad for gynecological examination, which comprises a sleeve pad main body and a pad towel, connecting holes are arranged at two corners of one end of the sleeve pad main body, first magic tape sub-surfaces are arranged at four corners of the surface of the lower end of the pad towel, and a limiting head sleeve is arranged at one end of the sleeve pad main body far away from the connecting holes. Fixing belts are fixedly arranged at the middle ends of the two sides of the lower end surface of the sleeve gasket body, and clamping assemblies are arranged at the ends, away from the sleeve gasket body, of the two fixing belts. According to the sleeve gasket for gynecological examination, by arranging the clamping assembly, when a plug is clamped into a clamping sleeve, a handle is loosened, a reset spring releases energy, the front end of a positioning column is pushed to be clamped into a positioning hole, effective connection of the clamping sleeve and the plug is achieved, and then a fixing belt pulls the sleeve gasket body to be tightly attached to an examination bed; and the limiting head sleeve is matched to ensure that the position of the sleeve gasket main body is fixed.

The utility model relates to a kind of special-shaped part end face processing jigs, including sleeve, sleeve is the structure that top end is completely open, the bottom end of sleeve is provided with integrally formed circular table, the bottom end of circular table is fixedly connected with fixed column, the top end of sleeve is provided with downward first recess, first recess extends to the bottom side of circular table, the side of sleeve about the right end of first recess is provided with front and back symmetry opening, the top end of fixed column is provided with downward second recess, fixed column and circular table are screwed with same limit sleeve, by using above-mentioned technical scheme, sleeve top end is open and is provided with first recess, and the side of sleeve has about the opening of first recess symmetry, special-shaped part is conveniently put into sleeve, under the cooperation of first recess and second recess, the slot width of first recess and second recess is shortened by rotating limit sleeve to realize the locking of this tooling, ensure that special-shaped part position is fixed when processing, improve processing precision and quality, reduce the defective rate of special-shaped part.

The utility model relates to medical technology field in general, and more particularly to a novel centrifugal enrichment device of cell wax block making, include: centrifugal tube, embedding paper, draw a line and support piece, embedding paper is set in centrifugal tube in near bottom position, draw a line one end is connected with embedding paper, and the other end extends to the pipe orifice position of centrifugal tube, the support piece sets up in centrifugal tube bottom, and supports embedding paper, the application is through embedding paper setting in centrifugal tube bottom, and when centrifugal enrichment, cell will be attached on embedding paper, when transferring cell wax block making, embedding paper is taken out directly through draw a line, the cell adhesion in centrifugal tube bottom or lateral wall is reduced, and when transferring cell block, can better keep the integrity of cell block, reduce the cell injury because of operation, effectively solve the problem that cell block structure is vulnerable to damage and cell loss rate is high in traditional craft.

The utility model discloses a kind of axial flow centrifugal compressor for compressed air energy storage, it is related to energy storage technical field, comprising: axial flow section, centrifugal section and main shaft;The axial flow section has casing and the axial flow rotor in the casing, the centrifugal section has volute and the centrifugal rotor in the volute, the casing is connected with the volute;The axial flow rotor is connected with the one end of the main shaft by fastener, the centrifugal rotor is sleeved on the main shaft, the upstream end of the centrifugal rotor is supported on the boss of the main shaft the downstream end of the centrifugal rotor is detachably connected with the main shaft by connecting structure.The utility model technical scheme, axial flow rotor and centrifugal rotor are respectively set as detachably connected with main shaft, so that axial flow rotor, centrifugal rotor and main shaft can be separately produced, for large flow, high pressure ratio compressor, independent production facilitates each part manufacturing.

This utility model discloses a universal fixture for mobile phone case processing, relating to the field of mobile phone case processing technology. It includes a base plate with multiple slots on its surface. Each slot contains a matching insert block. A bracket is fixedly connected to the top of each insert block. A main fixture is mounted on the top of the bracket, and a positioning mechanism is located on the top of the main fixture. The positioning mechanism includes a positioning frame, which is positioned on the top of the main fixture. A positioning threaded hole is formed on the top of the positioning frame, and a foolproof pin is fixedly connected to one side of the threaded hole. By rotating the positioning pin, its height and position can be precisely adjusted, enabling accurate positioning of the mobile phone case. This ensures the mobile phone case remains in a fixed position during processing, improving processing accuracy and product quality. Simultaneously, the foolproof pin effectively prevents the mobile phone case from being placed in the wrong orientation, further improving the accuracy and convenience of operation.

The present application relates to the field of supporting the expanding shaft, in particular to a kind of air pressure mechanical inner expanding mechanism, including fixed shaft, inclined plane axle and rotating shaft, the surface of rotating shaft is all set with through hole around, each through hole is equipped with a steel ball, the surface of inclined plane axle is set with the inclined plane ring groove that is engaged with steel ball around a week at the position corresponding steel ball, the position of rotating shaft around corresponding each steel ball is also equipped with an arc surface heat conduction sheet, rotating shaft is coaxially equipped with rubber expansion sleeve, rotating shaft is equipped with elastic recovery component around, the end of rubber expansion sleeve towards fixed shaft is equipped with coaxial limiting component, the present application is supported fixed tube core by rubber expansion sleeve, and by keeping the coaxial state between tube core and rotating shaft by coaxial limiting component, so that rubber expansion sleeve is kept stable when being processed, in order to restore the elasticity of rubber expansion sleeve, by elastic recovery component to improve the heat of rubber expansion sleeve, so that rubber expansion sleeve restores elasticity, improves the processing effect of tube core.

The utility model provides a kind of compatibility vacuum adsorption device, it is related to part adsorption clamping technical field, the utility model includes horizontal moving part, vertical moving part and clamping component, vertical moving part carries clamping component and slides on horizontal moving part along horizontal direction, clamping component can slide on vertical moving part along vertical direction, clamping component includes lifting portion, wherein lifting portion can drive connecting rod assembly to drive suction cup to slide on adjusting portion to adjust the interval of suction cup in horizontal direction.The utility model, connecting rod assembly moves up and down, so that suction cup can stay in different positions, the above structure can realize that suction cup stays in any position, to realize the switching of different product sizes, can make adsorption cylinder slide back and forth between multiple points, S-shaped slide rail groove can ensure that cylinder is fixed after reaching point.

The utility model discloses a testing arrangement for semiconductor processing, including conveying frame, the inside of conveying frame is provided with conveyer belt, the front end and rear end of conveyer belt upper middle are respectively arranged with the positioning board of symmetry, the outside of two positioning boards all rotatory mounting has power box, the side of power box away from positioning board is fixedly installed with transmission plate, and the inside of power box at left side is provided with motor cavity, the motor cavity inside of power box is fixedly installed with motor, and the output of motor is fixedly connected with positioning board, the both sides in conveying frame inside are respectively arranged with the slot of symmetry, the both sides of conveying frame are respectively arranged with fixed folding plate of symmetry. It has realized the turnover ability, has increased the practicality, thereby solved the problem that does not have the turnover structure when the appearance defect of semiconductor device is tested, is not favorable to the defect detection of semiconductor device positive and negative sides.

The utility model discloses a kind of adjustable lifting appliance structures for silicon package hoisting, including lifting appliance crossbeam, symmetric strip hole is equipped in crossbeam bottom surface, the lifting hook fixing base with lifting hook is installed in hole, middle part is equipped with winding rope cylinder, traction rope is wound in winding rope cylinder two ends by fixed seat top surface vertical board connection.The traction rope is retracted by motor drive winding rope cylinder, drive lifting hook fixing base to move in strip hole, adjust lifting hook distance, adapt to different specifications silicon package hoisting.Lifting hook fixing base top surface is equipped with spacer to prevent falling, strip hole middle guide rod cooperates with spring to ensure smooth movement;Counterweight is equipped at the opposite place of motor in the side of crossbeam, weight is balanced, crossbeam bottom surface rack and lifting hook fixing base electromagnetic lock occlusion realize position locking.The lifting appliance structure disclosed in the application is convenient and efficient, and the structure is stable and reliable.

The utility model discloses a filter detection mechanism, the utility model relates to filter detection technical field. Including installation platform, be provided with the installation mechanism for filter detection on the installation platform, and installation mechanism includes: protection subassembly, including the support frame fixed in installation platform both ends, the utility model is in the non - detection state or needs protection high -definition discernment camera, and starts second electric push rod, and second electric push rod elongation, and promotes protection shell to revolve around the rotation axis, and two sets of protection shell close, and will high -definition discernment camera airtight protection, when needs to carry out detection, second electric push rod contracts, and draws protection shell and opens, makes high -definition discernment camera expose and carries out detection work, can provide airtight protection space for high -definition discernment camera under the non - detection state, effectively prevent dust, sundries, collision etc. to cause damage to the camera, prolong the service life of camera, reduce maintenance cost.

The drawing hose comprises a corrugated pipe, the corrugated pipe is arranged in a supporting pipe in a penetrating mode, a water outlet assembly is connected to the corrugated pipe, the outer side of the corrugated pipe is sleeved with a locking sleeve and a releasing sleeve, the locking sleeve is connected with the supporting pipe, one end of the locking sleeve extends into the supporting pipe, and a fixing part is arranged at the end of the locking sleeve; the fixing part can be connected with the outer side of the corrugated pipe in a clamped mode, the release sleeve is located between the corrugated pipe and the locking sleeve, and the release sleeve can be inserted into the locking sleeve and can open the fixing part. The locking sleeve and the releasing sleeve are arranged on the corrugated pipe, the fixing part is arranged at the end, inserted into the supporting pipe, of the locking sleeve, and the fixing part can be connected with the outer side of the corrugated pipe in a clamped mode, so that the drawing length of the corrugated pipe is fixed, and flushing operation is facilitated; and meanwhile, the release sleeve can be inserted into the locking sleeve to open the fixing part so as to unlock the corrugated pipe, so that the corrugated pipe is convenient to retract, and the use is convenient.

The utility model discloses a modularization high-temperature hot box of an elasticizer, which belongs to the technical field of elasticizers and is characterized by comprising a box body, a heating assembly is arranged in the box body, a limiting assembly is arranged on the front side of the heating assembly, the heating assembly comprises a U-shaped supporting plate, a heating wire is arranged at the bottom of the inner wall of the U-shaped supporting plate, and the limiting assembly is arranged on the front side of the U-shaped supporting plate. The heating assembly comprises a U-shaped supporting plate, a heating wire is arranged in the U-shaped supporting plate, a hot rail is arranged in the U-shaped supporting plate, the bottom of the hot rail is tightly attached to the heating wire, sliding grooves are formed in the two sides of the inner wall of the U-shaped supporting plate, sliding blocks are fixedly connected to the bottoms of the two sides of the hot rail, and the sliding blocks are used in cooperation with the sliding grooves. Operators can easily draw out the hot rail along the sliding groove only by releasing limitation of the limiting assembly, compared with traditional fixed installation, numerous parts do not need to be disassembled, operation is easy, convenient and rapid, maintenance time is greatly saved, and production continuity is guaranteed.

The present invention relates to the field of radiation refrigeration technology, and in particular to a radiation refrigeration film refrigeration performance test device, comprising a metal tank body, a cover body arranged on one side of the metal tank body, and a temperature measuring device arranged outside the cover body, the cover body is provided with an opening whose diameter matches the diameter of the thermocouple temperature sensing port of the temperature measuring device, a conduit is extended into the metal tank body at the opening, the thermocouple temperature sensing end of the temperature measuring device penetrates from the opening and extends into the metal tank body along the conduit, the top of the metal tank body is polished to form a superior arc surface, and the bottom of the metal tank body is a plane. The present invention has a simple structure, ingenious construction, low manufacturing cost, good sealing, and can quickly evaluate and test the radiation refrigeration performance of the film before coating, thereby reducing the test cost and improving the test accuracy.

The multifunctional clothes hanger comprises a clothes hanger body, a hook is arranged on the clothes hanger body, supporting arms are arranged on the two sides of the hook respectively, receding openings are formed between the supporting arms and the clothes hanger body, the receding openings are located at the positions close to the hook, and a plurality of positioning bosses are arranged on the side faces of the supporting arms. Positioning elastic pieces are arranged on the positioning buckles, clamping grooves are formed in the positioning buckles, the supporting arms are inserted into the clamping grooves, positioning grooves are formed in the side walls of the clamping grooves, and the positioning grooves are connected with the positioning bosses in a clamped mode. When the clothes hanger is used, a user can adjust the relative position of the positioning buckle according to the size of a collar of clothes, the collar is clamped through the positioning elastic piece, it is guaranteed that the position of the clothes is fixed, the situation that the clothes fall off is effectively avoided, in addition, the supporting arms can be used for airing shoes, and the functionality of the clothes hanger is enriched.

The utility model discloses a protection mechanism of a film laminating machine, which relates to the technical field of film laminating machine protection, and comprises a rack and a film laminating machine body arranged on the rack, two vertical plates are fixed at the upper end of the rack, the two vertical plates are respectively arranged on two sides of the film laminating machine body, a transverse plate is fixedly connected between the two vertical plates, and the transverse plate is fixedly connected with the rack. A protective cover is arranged below the transverse plate, a lifting air cylinder is installed at the upper end of the transverse plate, the telescopic end of the lifting air cylinder downwards penetrates through the transverse plate and is fixedly connected to the top of the protective cover, two safety grating mechanisms are arranged between the two vertical plates, and the two safety grating mechanisms are arranged on the two sides of the film laminating machine body respectively. The protective cover solves the problems of equipment damage and potential safety hazards caused by accidental touching of limbs of an operator or entering of foreign matters in film covering operation, can ensure that the position of the closed protective cover is fixed, and keeps the stability of a protective state.

The utility model discloses a brand new high-resolution and high-bandwidth DP80 transmission line, which comprises a line body, two ends of the line body are respectively provided with a connecting device, each connecting device comprises a reinforcing block, the reinforcing blocks wrap the side ends of the line body, a plurality of color lines are arranged in the line body, the color lines are provided with line clamps for fixing, the color lines are connected to a connector, and the connector is connected to the line body. The color line adopts a coaxial line structure, the connector is provided with a resistor, and the color line adopts the coaxial line and the wire clamp, so that the signal quality and the high transmission speed are ensured.

The utility model provides an automatic trepanning machine with a scrap collecting function, which relates to the technical field of automatic trepanning machines, and comprises a shell, and a drill bit is rotatably connected to the side surface of the shell. The drill bit is connected to the side surface of the shell, a sliding rod is slidably connected to the surface of the shell, and a spring A and a collecting box are mounted on the sliding rod; and automatic collection of the scraps is achieved. And the storage box is slidably connected into the collecting box, so that scraps are effectively prevented from scattering, and the working environment is kept clean and tidy. And through the design of a limiting block and a limiting rod, it is guaranteed that the position of the collecting box is fixed, and through combination of a push plate and a spring B, waste scraps are cleared away more easily and conveniently. And through the design of a movable rod, a hook and a rotating plate which are connected in a sliding mode in the interior, a torsional spring and a spring C are combined, so that the equipment is more stable during operation, and the accuracy and continuity of the drilling process are ensured. And due to the design of the whole structure, the working efficiency is improved, and the labor intensity of operators is reduced.

The utility model relates to the field of single-chip microcomputer production, in particular to an automatic edge grinding device for single-chip microcomputer production, which comprises a grinding device body, the grinding device body comprises a base, a placing plate is rotatably mounted in the middle of the top of the base, sliding grooves are formed in the middle of the periphery of the placing plate, and limiting sliding blocks are slidably mounted in the sliding grooves. Fixing seats are symmetrically mounted on the top of the base and located on the two sides of the placing plate, a fixed connecting plate is mounted above the position between the two fixing seats, and an abutting mechanism is arranged in the middle of the bottom of the fixed connecting plate; according to the single-chip microcomputer polishing device, the single-chip microcomputer is limited and flexibly pressed through the pressing mechanism, so that the single-chip microcomputer is limited and fixed, the single-chip microcomputer can be subjected to rotary edge changing and polishing by rotating the placing plate, and meanwhile, the rotating placing plate is limited and fixed through the limiting mechanism; and it is guaranteed that the rotated single-chip microcomputer is limited and fixed, a user can conveniently and rapidly grind all the edges of the single-chip microcomputer, and the grinding efficiency of the single-chip microcomputer is improved.

The utility model relates to the technical field of automobile radar testing, in particular to an internet intelligent automobile radar testing device which comprises two T-shaped supporting columns, two guide rails fixed between the bottoms of the two T-shaped supporting columns, a shaft rod fixed between the two T-shaped supporting columns, and a moving vehicle connected to the two guide rails in a rolling mode. And a [-shaped frame is fixed to the top face of the moving trolley, two telescopic pieces are fixed to the top face of the [-shaped frame, and a carrying plate is fixed between the tops of the two telescopic pieces. According to the utility model, the mobile vehicle drives the radar on the carrier plate to move towards the test plate, the radar on the simulated vehicle moves to detect an obstacle, the second connecting shaft drives the transmission rod to push the carrier plate upwards in a reciprocating manner in the moving process of the mobile vehicle, and the carrier plate drives the radar to detect the test plate in a bumpy scene under the cooperation of the bumpy spring. The working condition of vehicle bumping is simulated, various parameters of the test board are detected by the test radar under the bumping condition, and the accuracy of a test result is improved.

The invention relates to the technical field of micro lens preparation, and discloses a hot reflux device for micro lens preparation, which comprises a box body, the upper end of the box body is detachably provided with a wafer carrying table, the wafer carrying table is provided with a mounting groove matched with a wafer, the wafer carrying table is internally provided with a vacuum tube communicated with the mounting groove, and the vacuum tube is communicated with the mounting groove. The other end of the vacuum tube is used for being connected with a negative pressure system, and a heating plate is arranged right above the wafer carrying table in a liftable mode. According to the invention, the relative position between the wafer and the heating plate can be ensured to be fixed, the wafer is ensured to be horizontal, the wafer and the heating plate are prevented from being taken up to cause vibration in the separation process, the hot reflux time of the wafer is effectively controlled, and the quality of the wafer is ensured.