24results about How to "Small pressing force" patented technology

The invention relates to the field of testing equipment, in particular to an LORA meter testing device and a testing method thereof.The LORA meter testing device comprises a workbench and a machine body fixedly installed on the top side of the workbench, an air cylinder is fixedly installed on the machine body, a lifting plate is fixedly installed on a piston rod of the air cylinder, pipe heads are installed at the two ends of the lifting plate, and an air inlet pipe is connected between one pipe head and the machine body; a guide rod is installed on the workbench, the guide rod penetrates through the wall of the lifting sleeve in a sliding mode in the height direction, a first limiting ring sleeves the guide rod in a threaded mode, a supporting ring and a sealing air bag are installed in the lifting sleeve, and a first pressing ring is installed on the pipe head; the supporting ring is provided with a control mechanism, the control mechanism is used for controlling expansion or contraction of the sealing air bag, and the sealing air bag is used for expanding on the peripheral side of the LORA meter connector for sealing. The LORA table sealing test method has the effect of improving the accuracy of the LORA table sealing test.

A packing seal pressure reduction structure for conveying high-pressure media comprises a shaft sleeve, a packing box is installed on the outer side of the shaft sleeve, packing, a packing ring and a packing gland are installed between the low-pressure side of the packing box and the shaft sleeve, the packing gland compresses the packing and the packing ring, and a labyrinth seal groove and a liquid accumulation groove are sequentially machined in the high-pressure side of the packing box. A pressure relief channel is machined in the stuffing box and communicated with the liquid accumulation groove, and a pressure relief water pipe is installed above the pressure relief channel. According to the utility model, the medium pressure at the packing sealing medium end is effectively reduced, and the sealing medium is converted from a high-pressure medium to a low-pressure medium; the packing pressing force is reduced, the abrasion of the packing and the shaft sleeve is slowed down, the service life of the packing and the shaft sleeve is prolonged, and the maintenance period is prolonged; the unit friction efficiency is improved; the utility model provides a solution for changing mechanical sealing of high-pressure medium sealing into packing sealing.

The invention discloses an aluminum alloy gearbox shell fixing device based on 3D printing, and relates to the technical field of 3D printing equipment, the aluminum alloy gearbox shell fixing device comprises a base, a sliding seat, a printing nozzle, a discharging table, a cushion frame, a support, a sliding rod, a clamping unit, a pressing plate and a heat conduction unit, a pressure relief unit is arranged in the support, and the pressure relief unit is used for driving the sliding rod to move in the direction away from the printing nozzle. The clamping unit is arranged to clamp the gearbox shell lower side structure after 3D printing, in the clamping process, heat of the gearbox shell lower side structure is transferred to the heat conduction unit, the heat conduction unit triggers the pressure relief unit to act, and then the pressure relief unit drives the sliding rod to move in a small range in the direction away from the printing spray head (the gearbox shell); and the pressing force of the pressing plate on the gearbox shell can be reduced, and the situation that the appearance quality of the gearbox shell after 3D printing is affected due to the fact that the pressing force is too large and the lower side structure of the gearbox shell which is not completely cured is indented or sunken is avoided.

The invention discloses a thin-wall weak-rigidity flat casing machining method which comprises the following steps that S1, a part is pressed and fixed to a clamp, then a preliminary outline of a precise hole set on a part mounting edge is machined step by step through drilling, hole burying and rough boring, and the rough boring machining amount is controlled within a set range; s2, the part is taken out of the clamp, the part is pressed and fixed again, in the pressing and fixing process, a layered uniform distribution pressing method is adopted to be matched with a torque wrench to press and fix the part layer by layer step by step, the torque wrench is controlled within the set torque, meanwhile, the maximum deformation amount of the part is checked in real time when a pressing plate presses each time, and the maximum deformation amount of the part is determined; it is ensured that the part deformation is controlled within the set run-out value; s3, a complete outline of a precise hole group on the mounting edge of the part is machined step by step through semi-fine boring, fine boring and reaming, and the reaming machining amount is controlled to be a set value; compared with the prior art, the position of the precise hole in the part mounting edge is accurate and reliable, and the machining qualification rate of the part is high.

The lathe end face clamp of the annular part comprises a main body, one end of the main body is connected with a flange plate, the other end of the main body is provided with a pressing rod, a sliding plate is arranged in the main body, the sliding plate is connected with the pressing rod in a sliding mode, and an elastic piece is arranged between the pressing rod and the sliding plate. The pressing rod is slidably connected to the main body, and the pull rod penetrates through the flange plate and is fixedly connected with the sliding plate. According to the lathe end face clamp for the annular part, clamping deformation of the annular part is reduced by clamping the end face of the annular part, meanwhile, clamping and positioning are facilitated, and use is more convenient.

This utility model relates to the field of corrugated pipe fittings, and in particular to a spherical sleeve for corrugated pipes, comprising a first hemispherical cylinder, a second hemispherical cylinder, and a positioning component. The positioning component includes a side limiting block, a first limiting block, and a second limiting block. Mounting platforms are provided on the outer surfaces of both the first and second hemispherical cylinders. The first limiting block is located in the middle of the mounting platform, and the second limiting block is located between the first limiting block and the side limiting block. A locking block is provided on the mounting platform. The first and second limiting blocks have adjusting grooves that match the locking blocks. A threaded hole is provided on the side of the locking block away from the mounting platform. By loosening the connecting bolts, the clamping force applied to the first and second limiting blocks can be reduced, and then the first and second limiting blocks can be adjusted to move towards the corrugations on the corrugated pipe, thus fixing the corrugated pipe and adapting it to corrugated pipes with small orifice diameters.

The utility model discloses a wheel hub cover which is provided with an annular plane and a plurality of through holes, and the through holes penetrate through the annular plane. The at least one first protrusion is connected to the annular plane, protrudes out of the annular plane and is used for making contact with the sealing gasket and pressing the sealing gasket tightly; the first protrusion is provided with a starting end and an ending end and extends from the starting end along the annular plane, and when extending, the first protrusion avoids the through hole till the ending end intersects with the starting end and is in seamless connection with the starting end, and a closed surrounding structure is formed. The area size of the first bulge is smaller than that of the annular plane; therefore, the technical problems that the fastening force borne by the hub cover is relatively large, the hub cover is broken, and the service life is shortened are solved.

The present invention discloses a 3D printing-based aluminum alloy gearbox housing fixing device, which relates to the technical field of 3D printing equipment, including a base, a sliding seat, a printing nozzle, a material discharging table, a pad, a support, a sliding rod, a clamping unit, a pressure plate, and a heat conduction unit. A pressure relief unit is provided in the support, and the pressure relief unit is used to drive the sliding rod to move in a direction away from the printing nozzle. The present invention clamps the lower structure of the gearbox housing after 3D printing by setting a clamping unit. During the clamping process, the heat of the lower structure of the gearbox housing is transferred to the heat conduction unit, and the heat conduction unit triggers the action of the pressure relief unit, thereby causing the pressure relief unit to drive the sliding rod to move slightly in a direction away from the printing nozzle (gearbox housing), so that the pressing force of the pressure plate on the gearbox housing can be reduced, and the excessive pressing force is avoided to cause indentations or depressions on the lower structure of the gearbox housing that is not fully solidified, thereby affecting the appearance quality of the gearbox housing after 3D printing.

This application relates to a container rotation mechanism, a barcode scanning device, and a medical testing instrument. The container rotation mechanism includes a fixed base, a motor, a linkage shaft, an elastic component, and a clamping component. The motor is slidably mounted on the fixed base. The linkage shaft is coaxially connected to the motor's rotating shaft and passes through a screw hole; the sliding direction of the motor is parallel to the axis of the linkage shaft. The elastic component is connected to the linkage shaft. The clamping component is connected to the elastic component and has a recess adapted to the top of the container. On one hand, the clamping component presses against the top of the container to drive the container to rotate, preventing slippage and improving the accuracy of rotational barcode scanning. On the other hand, a single motor and linkage shaft can complete the movement close to the top of the container and drive the container to rotate. Furthermore, the elastic component allows the clamping component to adapt when contacting the top of the container. The structure is compact and simple, reducing costs and making it suitable for rotating containers of various heights.

The invention belongs to the field of cutter machining, and particularly relates to a carton grooving cutter production process. The specification layout of the cutter blank is planned in advance on the steel plate raw material, the appearance blanking allowance of the cutter blank is 1 mm, the thickness of the cutter blank is 2 mm, the production cost can be reduced, and the thickness machining operation time can be shortened. Secondly, laser cutting stress is solved through annealing, surface rough grinding is conducted, the thickness allowance is controlled to be 1 mm, a milling machine electromagnetic chuck is used for adsorbing and fixing the cutter blanks to complete appearance machining operation, the multiple cutter blanks are clamped through a clamp, the center of the initial cutter blank is adjusted to coincide with the center of a main shaft, and cutting edge machining consistency is achieved; the method comprises the following steps: carrying out quenching treatment to enhance the hardness, then carrying out flattening and tempering treatment, and finally carrying out semi-accurate grinding and circular truncated cone accurate grinding to finish the production operation of the grooving cutter, so that the edge tooth top consistency of the grooving cutter is high and is controlled within 0.02 mm, the surface roughness is Ra 0.6-Ra 0.4 mu m, and the thickness tolerance is + / -0.002 mm.

The present invention discloses a sliding door and window and a method for using the same, comprising an external frame, wherein the external frame comprises two upper and lower first transverse plates, two first vertical plates are symmetrically installed between the two first transverse plates, two guide grooves are symmetrically provided on the sides of the two first transverse plates close to each other, four window members are provided between the two first transverse plates, two of the window members are slidably connected to one of the guide grooves, and the other two window members are slidably connected to the other guide groove, and a pulling and releasing component is installed inside the window member; during operation, the present invention provides a sliding groove at the end of the second transverse plate, and the window member is arranged between the upper and lower guide grooves, and when the limit sliding bar is inserted into the sliding groove, the U-shaped frame and the roller enter the guide groove, so that the window member and the guide groove are conveniently limited and connected, and the window member is conveniently installed on the inner side of the external frame, so as to avoid the window member jumping off the track.

The invention relates to a locking and releasing device based on a cam type structure, the locking and releasing device comprises a locking base, two fasteners, a cam, two sliding shafts, a pin puller, a pressing rod and a load connecting mechanism, the upper end of the pressing rod is connected with the load connecting mechanism, and the lower end of the pressing rod is located in the locking base; the lower ends of the two fastening pieces can be installed on the inner side of the bottom wall of the locking base in a left-right sliding mode, and the upper ends of the two fastening pieces are provided with clamping sections clamped to the lower ends of the pressing rods in a matched mode. A cam shaft is arranged on the inner side of the bottom wall of the locking base, and the cam is rotationally connected to the cam shaft. The two sliding shafts penetrate through the two fastening pieces in a left-right sliding mode, each sliding shaft is sleeved with an unlocking spring, the two ends of each unlocking spring abut against the two fastening pieces respectively, the left ends of the two sliding shafts abut against the fastening piece on the left side in a limited mode, and the right ends of the two sliding shafts are connected and positioned through a connecting check block. The two sides of the cam abut against the connecting check block and the right side fastening piece respectively. The pin puller is installed on the locking base and can clamp and release the cam.

The compressor shell assembly comprises a compressor shell and a sensor fixing frame, the sensor fixing frame comprises a fixing frame body and a connecting base, the fixing frame body is provided with a containing channel and comprises a top plate and side plates located on the two sides of the top plate, and the side plates are connected between the connecting base and the top plate; the distance between the positions where the side plates on the two sides are connected with the connecting base is L, the diameter of the temperature sensor is D, any point on the inner wall face of the top plate corresponding to the maximum deformation cross section is a point A, the distance between the point A and the center point O of the temperature sensor is OB after insertion, and the distance between the point A and the point O is OA before insertion. For the difference (OB-OA) between the OB and the OA of the same point, the maximum value of the difference corresponding to each point is MAX (OB-OA), and D-L < = MAX (OB-OA) / 3. According to the invention, the influence of uncontrollable force application factors caused by uncontrollable deformation caused by connection of the side plates and the connecting seats is reduced.

The present invention relates to the field of agricultural film covering technology, and in particular to a film covering equipment for agricultural planting, comprising a frame, wherein two symmetrically arranged slide plates are slidably connected to the inner side of the frame, and the bottom ends of the two slide plates are fixedly connected to a roller mounting frame for placing a film roller, the bottom end of the frame is fixedly connected to a moving wheel, and the front end of the frame is fixedly connected to a pull ring, and the forward movement of the film covering equipment is achieved by traction of the pull ring, the bottom end of the slide plate is fixedly connected to a soil-breaking guide plate and a conveying cylinder, the top end of the slide plate is fixedly connected to a water tank, the inner side of the soil-breaking guide plate is provided with a guide groove, the cross-section of the guide groove is arranged in a "U" shape, one end of the conveying cylinder is connected to the inner side of the guide groove, the inner side of the conveying cylinder is rotatably connected to a spiral conveying rod, the upper rear end of the spiral conveying rod is connected to the water tank, and a water outlet valve is arranged at the connection between the spiral conveying rod and the water tank, and the lower rear end of the spiral conveying rod is connected to a discharge pipe.

The invention relates to a non-initiating explosive device locking and releasing device which comprises a load connecting mechanism, a locking base, a pin puller, a pressing rod, a fastening piece, an unlocking sliding block and an unlocking spring, the upper end of the pressing rod is connected with the load connecting mechanism, the lower end of the pressing rod is located in the locking base, a guide supporting piece is arranged in the locking base, and the pin puller is arranged on the locking base. The upper end of the unlocking spring is connected with the guide supporting piece, the lower end of the unlocking spring is connected with the unlocking sliding block, and the unlocking sliding block can be assembled on the lower portion of the guide supporting piece in an up-down sliding mode. The locking base is further internally provided with two sets of fastening pieces symmetrically arranged on the two sides of the guide supporting piece, the middles of the fastening pieces are hinged to the locking base, the lower ends of the two fastening pieces are both provided with idler wheels in rolling contact with the guide slopes on the two sides of the unlocking sliding block, and the upper ends of the fastening pieces are provided with clamping sections clamped with the pressing rods in a matched mode. The pin puller is installed on the side wall of the locking base and can clamp and release the unlocking sliding block.

The present invention discloses a postpartum body correction and rehabilitation mechanism with a shaping function, comprising a carrier, a clamping device, an adjusting device and a heat-insulating device, two groups of clamping devices are symmetrically arranged on the upper side of the carrier, the clamping device is connected to the adjusting device, the heat-insulating device is movably connected to the carrier, a sedimentation tank is arranged on the carrier, the heat-insulating device comprises a waist plate and a heat-insulating airbag, the waist plate and the sedimentation tank are movably connected, the heat-insulating airbag is arranged on the upper side of the waist plate, a hot air inlet is arranged on the heat-insulating airbag, the clamping device is located on the upper side of the carrier, the upper side of the carrier is arranged in an arc shape, a knee slope surface and a waist slope surface are arranged on the upper side of the carrier, a concave surface is formed between the knee slope surface and the waist slope surface, the clamping device comprises a first supporting assembly and a second supporting assembly, the first supporting assembly is located on both sides of the waist slope surface, the second supporting assembly is located on both sides of the knee slope surface, and the vertical height of the knee slope surface is higher than the vertical height of the waist slope surface.

The present invention belongs to the technical field of winding equipment, and specifically relates to a film winding equipment and a winding method for polyimide film production, including a bottom shell, a winding mechanism; a pretreatment mechanism, the pretreatment mechanism is arranged on one side of the bottom shell; a linkage mechanism, the linkage mechanism is arranged inside the bottom shell; a tensioning mechanism, the tensioning mechanism is arranged between the winding mechanism and the pretreatment mechanism; a pressing mechanism, the pressing mechanism is arranged above the winding mechanism; wherein the pretreatment mechanism includes a support part, the support part is connected to one side of the bottom shell, the support part is connected to a hollow roller that is distributed in an array on the support part, and the support part is also provided with an electrostatic elimination component that is distributed in an array, and an air intake part is connected between the plurality of hollow rollers, and an air delivery part is arranged in the bottom shell, and a reciprocating part is arranged at one end of the air delivery part. The present invention effectively eliminates static electricity, removes floating dust, and automatically adjusts the pressing force to achieve high-quality and stable winding of the film.

The invention relates to the technical field of robot control, and discloses a robot control method and device for an industrial pipeline, and the method comprises the steps: calculating a motion and posture coefficient based on a pitch angle, a roll angle, a motion speed and a motion acceleration of a robot; calculating an external force coefficient based on the cable dragging force and the operation counter-acting force; calculating a working condition attachment matching degree based on the instantaneous slip rate and the temperature under the motion and attitude coefficient and the external force coefficient; calculating a geometric coefficient of the pipeline based on the inner diameter, the bending radius and the inner local obstacle height of the pipeline; and based on the working condition attachment matching degree and the pipeline geometric coefficient, the target supporting arm pressing force is calculated, and the current supporting arm pressing force is adjusted to a target value. Through multi-source information fusion, the attachment state of the robot and the pipe wall and the geometric condition of the pipeline are dynamically evaluated, self-adaptive adjustment of the pressing force of the supporting arm is achieved, and the movement stability, passing ability and operation reliability of the robot in the complex pipeline environment are effectively improved.

The utility model discloses a kind of adsorption type dehumidification runner sealing structure, including structural frame and dehumidification runner;Sealing unit is arranged between the both ends of dehumidification runner and the structural frame;The sealing unit includes the outer ring flange of the outer periphery of dehumidification runner and the sealing ring of the structural frame;The cross-sectional shape of the sealing ring is Y type formed by three lips;One of the Y type the lip is set on the structural frame, and the other two lips are abutted with adjacent outer ring flange.The elastic force direction of sealing ring is along the axial direction of dehumidification runner, can bear greater air pressure.Under the premise of not increasing the friction resistance of sealing strip, reduce the leakage of air, improve the sealing performance of dehumidification runner;Compression intensity is smaller, and the rotation resistance of dehumidification runner is smaller, due to the self-lubricating characteristics of fluorine like glue, the friction resistance of this sealing structure has obvious reduction, hollow layer can isolate heat conduction, dry and wet air has no leakage.

This utility model discloses a rubber ring fixing mechanism, comprising: a wire clamping block with a clamping portion; a rubber ring disposed in the clamping portion; and a positioning member passing through the wire clamping block and the rubber ring. The rubber ring is an elastic body. A tail wire is threaded between the rubber ring and the clamping portion. The rubber ring and the clamping portion are in an interference fit to press and straighten the tail wire, ensuring that the clamping force of the rubber ring on the tail wire is less than a preset pressure value. This rubber ring fixing mechanism, through the wire clamping block, the rubber ring, and the positioning member forming an interference fit system, uses an elastic body. The elastic body's compression deformation generates a constant contact pressure, achieving automatic clamping and straightening of the tail wire, avoiding manual adjustment, and significantly reducing the dispersion of clamping force. Furthermore, by ensuring that the clamping force of the rubber ring on the tail wire is less than the preset pressure value, plastic deformation of the wire is prevented.

The invention relates to an orthopedic traction mechanism, belonging to the technical field of medical devices. The invention solves the problem that the traction process in existing orthopedic surgery is long, resulting in prolonged operation time. The invention comprises a rotation adjustment mechanism, a length adjustment mechanism, a pitch adjustment mechanism and a supporting square tube. The rotation adjustment mechanism is connected to the length adjustment mechanism, the length adjustment mechanism is connected to the pitch adjustment mechanism, and the pitch adjustment mechanism is connected to the supporting square tube. The invention realizes preliminary rapid adjustment, saves traction time, improves operation efficiency, reduces patient pain, and is simple and convenient to operate.

The invention belongs to the technical field of winding equipment, and particularly relates to film winding equipment and a winding method for polyimide film production. The pretreatment mechanism is arranged on one side of the bottom shell; the linkage mechanism is arranged in the bottom shell; the tensioning mechanism is arranged between the winding mechanism and the pretreatment mechanism; the material pressing mechanism is arranged above the winding mechanism; wherein the pretreatment mechanism comprises a supporting part, the supporting part is connected to one side of the bottom shell, hollow rotating rollers are rotationally connected to the supporting part in an array distribution mode, electrostatic elimination assemblies are further installed on the supporting part in an array distribution mode, an air inlet part is connected between the multiple hollow rotating rollers, and an air conveying part is arranged in the bottom shell; and a reciprocating part is arranged at one end of the gas transmission part. Static electricity is effectively eliminated, floating dust is removed, the pressing force is automatically adjusted, and high-quality stable winding of the thin film is achieved.

The auxiliary laying device comprises a box body, a laying roller, a flattening roller assembly and a cam assembly, the center of the bottom of the box body is sunken upwards to form a containing space, the laying roller is arranged in the containing space in a rolling mode, and the laying roller is used for being sleeved with the coiled material; the flattening roller assembly is arranged on the rear side of the rolling path of the laying roller in the containing space, the cam assembly comprises a cam shaft and a first cam arranged on the cam shaft in a sleeving mode, the cam shaft is arranged in the box body, the outer end of the cam shaft extends out of the box body, and the upper end of the flattening roller assembly extends upwards and is arranged in the box body in a telescopic mode. The first cam is in contact fit with the upper end of the flattening roller assembly. When a coiled material is laid, the pressing force of the pressing roller can be conveniently adjusted so as to meet the use requirements under the environments of different sizes and thicknesses and different laying surfaces.