619 results about "Frustum" patented technology

The invention belongs to the technical field of surgical robots, and particularly relates to an articulated lens connecting structure applied to a continuum surgical robotic.When the connecting structure is used, firstly, the mounting end of a tool bit penetrates into a first cavity, and the mounting end of the tool bit makes friction contact with the inner wall of the first cavity; the installation end of the tool bit is located between the multiple clamping pieces, the tool bit is higher than the clamping pieces, the installation end of the tool bit is rotated, then the rotary connector and the fixed connector are driven to rotate relatively, the multiple clamping pieces are driven to get close to and clamp the tool bit, installation of the tool bit is achieved, and the tool bit can be disassembled by rotating the tool bit reversely. Connection is convenient, fast and firm, and the possibility of surgical risks is reduced; and meanwhile, the first cavity is arranged to be in an inverted frustum shape, so that the first cavity can be matched with tool bits of different shapes and sizes, and the applicability is higher.

The invention provides a sealing plug, an underground gas storage and a construction method of the underground gas storage. The sealing plug comprises a body, a force bearing structure arranged outside the body in a sleeving mode and a retaining wall arranged on one axial end side of the body and the force bearing structure, the body is a cone frustum, the force bearing structure is provided with a first layer and a second layer from inside to outside, the first layer is attached to the outer surface of the body, and the second layer is attached to the outer surface of the body. A first contact surface and a second contact surface are arranged on the outer surface of the second layer, and an included angle is formed between the first contact surface and the second contact surface in the axial direction of the body. The sealing plug is designed to be of a variable cross-section structure, so that the sealing plug meets the requirements of high pressure, cyclic load and cyclic impact under the operation condition of the gas storage, the risk of structural instability is reduced, and the sealing plug is simple in structure, convenient to construct and higher in reliability.

The invention discloses a high-precision point iridium welding device and process, and relates to the technical field of pen point welding. The device comprises a conveying assembly capable of moving along an annular path, a welding assembly arranged below the conveying path and positioning tools arranged corresponding to conveying blocks. The conveying assembly comprises a plurality of conveying blocks, and the positioning tool is used for inserting a to-be-welded pen point base material; the welding assembly comprises a hopper, a feeding pipe coaxially connected with the hopper in a sliding mode, an electrode ring fixed to the top end of the feeding pipe and an inverted-cone-frustum-shaped iridium particle groove formed in the top end. The hopper can be filled with iridium particles to be welded, the feeding pipe can ascend and descend in the vertical direction, and the iridium particle groove can bear one iridium particle. Through cooperation of the conveying block and the positioning tool, quick assembly and feeding of the pen point base material are facilitated, the feeding difficulty is reduced, and manual feeding is more labor-saving.

The invention discloses a support installation angle measuring device for photovoltaic power generation, which relates to the technical field of measurement and comprises an installation position structure, a magnetic field control assembly and a measuring assembly. The installation position structure is arranged at the connection position of a stand column and a cross beam of the photovoltaic support, the connection point of an inclined supporting rod and a main frame and the connection area of a base and a foundation, under the cooperation of the magnetorheological fluid cavity assembly and the magnetic field control assembly and the design of a spiral flow guide groove and a cone frustum cavity, the fluid distribution uniformity is improved, and under the action of a magnetic field, the fluid distribution uniformity is improved. The spiral flow guide grooves guide the magnetorheological fluid to form spiral flow and cooperate with a rotating magnetic field, the support fixing effect is remarkably enhanced, and when the support deviates due to external force, the micro stress sensor of the magnetorheological fluid cavity reversely deduces the angle through shear stress changes and feeds the angle back to the magnetic field control assembly for real-time correction. Therefore, stress is released and deformation is corrected under extreme working conditions such as strong wind and earthquakes, and the accuracy and response speed of angle control and measurement of the support are greatly improved.

The invention belongs to the technical field of machine tool metal machining, and particularly relates to an air conditioner copper pipe flaring and chamfering treatment device which comprises a fixing ring, a matching sleeve is fixedly connected to the fixing ring, a moving column is slidably connected to the matching sleeve, a longitudinal piece is fixedly connected to the moving column, a fixing sleeve is fixedly connected to the longitudinal piece, and a flaring and chamfering device is arranged on the fixing sleeve. The fixing sleeve is rotatably connected with a frustum part, the front side of the frustum part is fixedly connected with a cylindrical part, the cylindrical part is connected with a chamfering head, the device further comprises a plurality of auxiliary grooves formed in the cylindrical part, the inclination angles of openings of the auxiliary grooves are gradually increased in the clockwise direction, the device further comprises a connecting plate fixedly connected to the longitudinal piece, and the connecting plate is fixedly connected with a collecting part. Chamfering and chambering operation can be continuously achieved in the device in sequence, machining errors are reduced, and convenience is brought to actual production.

The utility model provides an assembly type building embedded part which comprises an assembly part and an embedded part, the assembly part comprises an expansion pipe, a plurality of openings are formed in the side wall of one end of the expansion pipe at equal angles, a frustum body is arranged at one end of the expansion pipe and is close to the openings, a screw is arranged at one end of the frustum body, and a nut is arranged at the other end of the frustum body. The threaded rod extends into the expansion pipe, a transverse rod is fixedly connected into the expansion pipe, the threaded rod penetrates through and is in threaded connection with the transverse rod, a threaded section is arranged on the inner wall of the other end of the expansion pipe, the embedded part comprises a fixing plate, a connecting and inserting pipe is fixedly connected to the middle of the fixing plate, one end of the connecting and inserting pipe is arranged to be an arc section, and the other end of the connecting and inserting pipe is provided with a threaded section. The expansion pipe is arranged in the insertion pipe in a matched mode, and a blocking cover is arranged at the end of the arc section in a buckled mode. And by arranging the assembly part and the embedded part, construction of the embedded part and connection of external connection are facilitated.

The present invention discloses a precision casting automatic casting device, which relates to the technical field of casting devices. The precision casting automatic casting device includes a base, a cylindrical mold is fixed in the middle of the top end of the base, three support rods are fixed on the outer side of the top end of the base, a frustum is fixed at the top ends of the three support rods, a multi-track linear motor is fixed at the top end of the frustum, a telescopic feeding pipe is embedded in the frustum, and the telescopic feeding pipe is arranged to facilitate casting into the overall combined mold. Three track grooves are formed in the frustum, and three outer mold components are arranged inside the frustum. By arranging three movable outer mold components in the present invention, after the casting and forging are completed in this application, the three movable outer mold components can be controlled by the multi-track linear motor to perform independent unfolding and movement, and there will be no problem of material jamming.

The utility model provides an underground chamber with a breathing gas storage membrane, which comprises an embedded part and a gas storage membrane, the embedded part comprises a main body and a cover body, a cavity with an opening at the upper end is formed in the main body, a working cavity is formed in the main body, and the cover body is arranged at the opening end at the upper end of the main body; the main body is of a circular-truncated-cone-shaped structure with a small upper end and a large lower end, and the cover body is of an inverted circular-truncated-cone-shaped structure with a large upper end and a small lower end; the gas storage film is arranged in the working cavity, a cavity is formed in the gas storage film, a gas storage cavity is formed in the gas storage film, and a compression cavity is formed between the inner wall of the working cavity and the outer wall of the gas storage film; the first pipe body assembly is communicated with the gas storage cavity; and the second pipe body assembly is communicated with the compression cavity. The underground chamber with the breathing gas storage film is compact in structure, low in construction difficulty, good in sealing performance, capable of achieving stable output of medium gas, small in occupied area, low in manufacturing cost, good in using effect and wide in application range.

The invention discloses an ocean mooring pile anchor and a construction structure and a construction method thereof, the ocean mooring pile anchor comprises a pile anchor main body, the pile anchor main body is tubular, and fins are arranged on the outer side wall of the pile anchor main body; the umbrella cap is a thin-wall shell, the appearance of the umbrella cap is in an inverted circular truncated cone shape, the cross section of the umbrella cap shrinks linearly in the axial direction, the whole umbrella cap is of a big-end-up conical curved surface structure, the umbrella cap is fixedly arranged at one end of the pile anchor body, the circular-truncated-cone-shaped large-area end face of the umbrella cap faces the pile anchor body, and the outer diameter of the fins is smaller than the diameter of the circular-truncated-cone-shaped large-area end of the umbrella cap. The ocean mooring pile anchor construction method is used for installing the ocean mooring pile anchor through the ocean mooring pile anchor construction structure and comprises the steps that S1, preparation work is conducted, S2, hoisting work is conducted, S3, piling work is conducted, and S4, the accompanying pile, the guide pipe and the jetting device are taken back in sequence, and the anchor chain is tightened through the winch.

The utility model relates to an intestine separator for a common poultry slaughtering production line, which comprises a frame, a motor, a power transmission device and an extrusion separating device, the motor is mounted in the middle of the frame, a driving rotating shaft of the power transmission device is mounted in a gearbox, a driving gear is mounted in the middle of the gearbox, and the right end of the gearbox is connected with a coupling sleeve of a tooth roller A; the driven rotating shaft is mounted in the gearbox, a driven gear is mounted in the middle of the driven rotating shaft, and the right end of the driven rotating shaft is connected with the B tooth roller coupling sleeve; an A tooth roller and an A tooth roller shaft of the extrusion separation device are installed in a tooth roller box and connected with an A tooth roller coupling sleeve, and a B tooth roller and a B tooth roller shaft are installed in the tooth roller box and connected with a B tooth roller coupling sleeve. And the outer diameter contours of the A tooth roller and the B tooth roller are divided into three parts, namely a cylinder, a small cone frustum and a large cone frustum. The automatic intestine picking machine has the characteristics of capability of replacing manual intestine picking, small occupied labor force, low labor intensity, low production cost, good working environment, high production efficiency, high automation degree and the like.

The invention provides a tower main material deformation quantity and curvature detection method and system based on a three-dimensional laser point cloud, and the method comprises the steps: firstly carrying out the multi-angle scanning of a power transmission tower through a three-dimensional laser scanner, extracting a tower point cloud, and then carrying out the noise reduction filtering; performing orientation and rotation on the tower point cloud by adopting a PCA algorithm; performing horizontal slice projection on the tower, and extracting the point cloud of the quadrangular frustum pyramid part of the tower body through the length-width ratio, the area ratio and the point number of point cloud slices; respectively calculating four vertexes of each layer of slice of the quadrangular frustum pyramid, and then calculating the distance from the vertex of each layer of slice to the connecting line of the end points of the main material; whether a slope change point exists or not is judged through the slope change of the vertex of the principal material, and the quadrangular frustum pyramid slices above the slope change point are removed; and finally, the deformation quantity, the bending degree and the position of the main material are obtained through calculation. The method has the advantages of being high in measurement precision, small in labor amount and the like, and effectively solves the technical problem that the deformation quantity, the bending degree and the position of the tower main material are difficult to measure.

The utility model discloses an automatic hard plastic check ring assembling mechanism which comprises a bottom plate connected with a top plate through a stand column, the top plate is connected with an air cylinder, an extending rod of the air cylinder is downwards connected with a press-fitting mechanism, the press-fitting mechanism is downwards connected with a press-fitting barrel, and the end, to be sleeved with a plastic check ring, of a workpiece faces upwards and bears a frustum-shaped guide block upwards. The diameter of the lower end of the guide block is equal to the diameter of the end, to be sleeved with the plastic check ring, of the workpiece, the circumferential surface of the guide block is used for bearing the plastic check ring to be press-fitted, and the guide block faces the press-fitting cylinder upwards. When the air cylinder is pressed downwards, the press-fitting barrel is driven to move downwards, the plastic check ring moves downwards along the guide block, and the plastic check ring is naturally and evenly expanded by the guide block and is smoothly sleeved into a workpiece rubber ring groove. The press fitting process does not depend on manual operation of the plastic check ring, the check ring is evenly stressed in the circumferential direction, the check ring is prevented from being scratched and turned over and twisted, the assembly efficiency is greatly improved, and the problem of oil leakage of an engine is solved.

Various showerheads and methods are provided. A showerhead may include a faceplate partially defined by a front surface and a back surface, a back plate having a gas inlet, a first conical frustum surface, and a second conical frustum surface, a plenum volume fluidically connected to the gas inlet and at least partially defined by the gas inlet, the back surface of the faceplate, the first conical frustum surface, and the second conical frustum surface, and a baffle plate positioned within the plenum volume, and having a plurality of baffle plate through-holes extending through the baffle plate. The second conical frustum surface may be positioned radially outwards from the first conical frustum surface with respect to a center axis of the showerhead, and the second conical frustum surface may be positioned along the center axis farther from the gas inlet than the first conical frustum surface.

The invention discloses a multidirectional anti-collision protection device, and relates to the technical field of laser cutting and welding. Comprising a swing arm rocker, the front end of the swing arm rocker is a round rod, the tail end of the swing arm rocker is a circular truncated cone, a back pressure spring is arranged on the side face of the circular truncated cone, and a spring mounting groove is formed in the back face of the swing arm rocker. The multidirectional anti-collision protection device has the advantages that 360-degree multidirectional no-dead-corner anti-collision is realized, hard collision of the working laser head is changed into soft contact, the influence on other parts in collision accidents is eliminated, the defect that the working laser head is easy to damage due to collision is overcome, a large amount of maintenance and replacement cost is saved for enterprises, more time is saved, and the working efficiency is improved. Production is not delayed any more due to collision accidents; the problems that a laser head is easy to collide with a plate, a cutting torch is easy to abrade, leapfrog and the like of laser equipment are solved; internal parts are high in precision, sensitive in induction and rapid in response, and safety is ensured through contact, pressure induction and multiple signal alarm; the installation is simple and convenient, the installation plate is self-adaptive, and all models can be adapted.

The right center impeller is stable in flow field, good in cavitation performance and small in shearing force, the right center impeller comprises a hub and blades, the hub comprises a hub body and a hub tail, the blades are suitable for being driven by the hub to rotate, and blood is conveyed to the far end of the impeller from the near end of the impeller; the hub body is of a frustum structure with the radius gradually increasing from the near end to the far end, and the hub tail is of a frustum structure with the radius gradually decreasing from the near end to the far end. The frustum-shaped hub tail part has certain flow guide and rectification effects, so that the flow velocity is reduced when blood passes through, and the pressure in a flow field is reduced; the cone is gentle and reasonable in transition, so that the blood is powerfully supported when flowing through the surface of the model, flow separation and flow separation are not easy to occur, and a flow field is smoother; the shear force in a reasonable flow field is smaller, and the hemolytic property is further improved. The impeller has the hydraulic performance and the hemolytic performance of the blood pump at the same time, and in addition, due to improvement of the cavitation performance, the impeller rotates more stably, noise is low, and the impeller is more friendly to patients.

The utility model relates to the technical field of devices for adjusting pre-deformation when steel wires are twisted into steel cords, in particular to a quantifiable adjusting needle type deformer which comprises an adjustable base, a support is arranged on the adjustable base, a wire distributing disc is arranged on the support, a plurality of wire passing holes are distributed in the wire distributing disc at equal angles, a deformation device is arranged on one side of the wire distributing disc, and the deformation device is arranged on the other side of the wire distributing disc. The deformation device comprises a plurality of cone-frustum-shaped mounting seats, the diameters of the cone-frustum-shaped mounting seats are sequentially decreased, each cone-frustum-shaped mounting seat is provided with scales, and a damping pad is arranged between every two adjacent cone-frustum-shaped mounting seats; a plurality of needle type deformation rods are arranged on the side face of each cone-frustum-shaped installation base at equal angles, and the needle type deformation rods on the adjacent cone-frustum-shaped installation bases are arranged in a staggered mode. One end of each needle type deformation rod is located in the corresponding cone-frustum-shaped installation base, and the other end of each needle type deformation rod is connected with a limiting device. The steel wire rope forming device is simple in structure, convenient to adjust, adjustable in deformation, good and uniform in steel wire rope forming and not prone to head scattering, and the quality of rope forming products is greatly improved.

The utility model discloses fabric shaping and stretching equipment which is provided with a fixing frame and a lifting frame, a plurality of moving plates are connected to the fixing frame and the lifting frame in a sliding mode, an unfolding mechanism for driving the moving plates to be unfolded at equal intervals is arranged, and fabric is fixed through the moving plates on the upper side and the lower side. Then the multiple moving plates are driven by the unfolding mechanism to be unfolded at equal intervals, then multiple pulling forces towards the two sides are applied to the fabric, the overall stress of the fabric is more uniform, the frustum-shaped pressing pipes are arranged on the moving plates to reduce the contact face with the fabric, and the situation that the stretching effect is affected due to the fact that the area of the pressed part is too large is prevented; and a rubber mat is fixed on the pressing pipe to prevent the fabric from being scratched.

The invention provides a pile pressing device and an operation method thereof. The pile pressing device comprises driving equipment, a clamp and a pile pressing assembly. The pile pressing assembly is connected with the tail end of the arm frame through a clamp. The clamp adaptive end is in clamping connection with the clamp; a profile steel framework is arranged in the fixture adaptive end; the tip end of the pressing pile is in an inverted cone frustum shape. Pile pressing force is directly applied from the interior of a pile core, clamping damage of a traditional clamp to the outer side of a pile body is thoroughly avoided, and the technical effects that the problem that the surface of the exposed pile body is damaged is solved, the integrity and attractiveness of the exposed face of the wall protection pile are guaranteed, and the cost caused by later appearance repairing is eliminated are achieved.

This invention discloses a frustum-shaped chill for the firing surface of cylinder heads in sand casting, belonging to the technical field of casting process auxiliary parts. The chill includes a chill body with multiple circular bosses evenly distributed along the radial direction on its top surface for precise positioning within the sand mold. The top surface of the body has crisscrossing venting grooves to expel gases generated during the solidification of the sand core and molten metal. The body is divided into upper and lower frustum sections, with the upper frustum being higher than the lower frustum, forming a gradient cooling structure. Through structural optimization, this invention achieves precise and controllable cooling of the cylinder head firing surface, reducing defects such as shrinkage porosity, looseness, and gas porosity to near zero, improving casting density and yield, and is suitable for sand casting production of various aluminum engine cylinder heads.

The utility model discloses a seedling puncher, and belongs to the technical field of punchers. Comprising a supporting frame, a conical head is fixed to the lower end of the supporting frame, the lower end of the conical head is a tip end part, the lower end of the supporting frame is elastically connected with an annular plate, the annular plate and the conical head are coaxially arranged, and the annular plate is in threaded connection with a plurality of long screw rods; the conical head comprises an inverted frustum, a vertical pipe coaxially fixed to the frustum and a conical head coaxially fixed to the vertical pipe, and the technical effect that the hole diameter of punched holes is adjusted so as to be suitable for different seedling raising and sowing is achieved.

The utility model relates to the technical field of metal smelting, in particular to a metal sampling mold. A first module is arranged on the base, a first groove body and a second groove body are formed in the first module, the longitudinal section of the second groove body and the longitudinal section of the first groove body are in an inverted-T shape, a second module is placed in the first groove body, the upper end of the second module extends out of the first groove body, and an inverted-circular-truncated-cone-shaped through groove is formed in the middle of the second module in an up-down penetrating mode and communicated with the second groove body. The second module is of a split type structure with the two sides opposite, first limiting rods are symmetrically fixed to the outer side of the second module, second limiting rods matched with the corresponding first limiting rods are arranged above the base, telescopic mechanisms are arranged between the two ends of each second limiting rod and the base, and the telescopic mechanisms are used for achieving vertical movement of the second limiting rods. The telescopic mechanism is arranged on the base in a sliding mode, and the second limiting rods which are symmetrically arranged get close to each other or get away from each other. And the alloy ingot can be completely taken out without knocking the mold, so that the efficiency is higher.

The utility model discloses a waterproof high performance european cable joint, and its stress cone subassembly includes upper body and lower body, and the upper body bottom array has a plurality of arc clamping pieces, and each arc clamping piece constitutes a frustum, and the lower body top has the taper hole corresponding frustum, and the shell bottom still has a bottom cover with a hole and is screwed, and the lower body is inserted in the upper body bottom, and the frustum of each arc clamping piece constitutes and is inserted in the taper hole, and the bottom cover presses the lower body and goes up and makes each arc clamping piece clamp the cable, and the junction of upper body and lower body still is equipped with first seal, and the bottom cover still is equipped with second seal, and the second seal lower extreme still has a ring of sealing ring, and the sealing ring is hooped between the cable and the hole inner wall of bottom cover, and the utility model discloses convenient assembly, and the cable is not easy and is produced with the joint loose, and the waterproof property is good.

The utility model discloses a multi-size sealing ring installation tool. The multi-size sealing ring installation tool comprises a main device body, a claw part assembly and an adjusting assembly. First and second air inlets are formed in the outer side wall of the main body; the claw part assembly comprises expanding claws and lifting claws which are distributed along the circumference at intervals, the expanding claws move in the radial direction, the ends of the expanding claws are provided with protrusions with supporting parts and supporting parts, the expanding claws are folded at the beginning to enable the protrusions to be gathered into a cylinder to be sleeved with the sealing ring, the expanding claws expand to open the sealing ring after air inflow, and the lifting claws eject the sealing ring out of the sealing ring to be clamped into a workpiece mounting groove; the adjusting assembly comprises an adjusting screw rod and a circular truncated cone, two ends of the screw rod are connected with a first knob and the circular truncated cone, a cylindrical ring body with an adjusting screw rod is arranged on the circular truncated cone to position a workpiece, and the air inlet is provided with an air inlet valve with an air adjusting valve. The tool solves the problems that a traditional tool is low in adjustment efficiency, installation deviation exists and a sealing ring is prone to being damaged through cooperation of the air-driven claw part, the adjustable expanding claw structure and the precise positioning assembly, and the multi-size adaptability, the installation efficiency and the sealing quality are improved.

The anti-deflagration pipeline flame arrester comprises a first valve body and a second valve body, the first valve body and the second valve body are both in a circular truncated cone shape, connecting flanges are arranged on the short-diameter sides of the first valve body and the second valve body, and a first fixing flange and a second fixing flange are arranged on the long-diameter sides of the first valve body and the second valve body respectively. A first sealing ring is arranged on the inner surface of one side of the first fixing flange, a second sealing ring is arranged on the outer surface of the first sealing ring, and one side of the second sealing ring is connected with one side face of the second fixing flange. By arranging the first fixing ring and the second fixing ring, the first fixing ring and the second fixing ring have extremely high hardness and abrasion resistance, the situation that the sealing performance is reduced due to abrasion caused by long-time use is avoided, and the situation that the sealing performance is reduced due to the fact that the first fixing flange and the second fixing flange are frequently taken down is prevented; and the explosion phenomenon in the pipeline is further caused.

An outer barrel comprises an outer cylindrical barrel body and an outer inverted frustum barrel body which are connected up and down, a circle of reinforcing ribs are coaxially arranged in the outer barrel around the circumference to be connected with an inner barrel with a flow guide cavity formed in a spaced mode, and the inner barrel comprises an inner cylindrical barrel body and an inner inverted frustum barrel body which are connected up and down. A motor is installed on the lower bottom of the inner inverted frustum barrel in a supporting and locking mode, an output shaft of the motor is directly connected with an impeller located in the outer inverted frustum barrel, an inner opening and an outer opening are correspondingly formed in the same sides of the inner barrel and the outer barrel, the inner opening extends to the lower bottom of the inner inverted frustum barrel from the upper end of the inner cylindrical barrel, and the outer opening corresponds to the inner opening. And a flow guide cavity between the inner opening and the outer opening is sealed by sealing plates on the two sides of the outer opening. The device is simple in structure, effectively considers cost and maintenance, and can be applied to different flow pressures.

The present invention relates to a detecting device and method for the clearance of a tapered roller bearing cage, which comprises the following components with a split design: the bearing balls for detection, which are used to carry the cage to be detected; the cage replacement and ball integral storage support, which is an annular support composed of a hollow cylinder and a frustum of a cone coaxially arranged as a whole; the clearance detection base and the inner ring of the bearing for detection, wherein a step for accommodating the inner ring of the bearing for detection is arranged on the clearance detection base, and the two jointly form a clearance detection component; the integral positioning and replacement cage support, which is an annular support; the ball sorting and limiting retaining ring, which is an annular disc retaining ring and is used for guiding and sorting the bearing balls for detection; and a dial indicator, which contacts with the window beam of the cage to be detected to measure its clearance. This device eliminates all the processes between storing the bearing balls for detection and detecting and replacing the cage, and can quickly replace the cage to be detected.

The utility model discloses a quick-release threaded pipe, belongs to the technical field of pipeline structures, and provides a threaded pipe which can be directly and quickly disassembled and assembled without using tools, and comprises a splicing pipe and a push-pull handle, the main body part of the splicing pipe is a main pipe body, the middle part of the main pipe body is provided with an outer convex conical ring, and the end part of the main pipe body is provided with a connecting end; external threads are arranged on the outer side face of the connecting end, the two push-pull handles are fixedly connected through the connecting piece, the outer convex conical ring is located between the two push-pull handles and provided with a pair of symmetrical circular truncated cones, the axes of the two circular truncated cones are collinear with the axis of the main pipe body, each push-pull handle comprises a force application disc, and the inner wall of each force application disc is provided with an inner concave conical surface. The push-pull handle structure for rotation constraint is designed in the middle of the splicing pipe with the threaded structures at the two ends, and when the threaded pipe is disassembled and assembled, component force in the tangential direction of the spiral line is provided, so that operation can be achieved without using a wrench tool, the disassembly and assembly operation is simplified, and the disassembly and assembly efficiency is improved.

The invention discloses a positioning tool and a tapping method for a heliostat assembly, and particularly relates to the field of heliostat product maintenance devices. Comprising a first circular truncated cone, a first through hole and a plurality of second through holes are formed in the axial direction of the first circular truncated cone, and the second through holes are distributed along the outer circumference of the first through hole; a first boss is fixed to the surface of the first circular truncated cone, a third through hole is formed in the first boss, and the third through hole is located above the first through hole and communicates with the first through hole; a first positioning groove is formed in the second through hole in the surface of the first circular truncated cone and communicated with the second through hole, the inner diameter of the first positioning groove is larger than that of the through hole, and the first positioning groove and the first boss are located on the same side of the first circular truncated cone. On the basis of the device, the supporting base and the first circular truncated cone are in positioning connection through the positioning rod, accurate positioning is ensured, and shaking and screw tap deviation are avoided; and meanwhile, the tapping stability and accuracy of the heliostat support can be improved, and therefore the manual tapping speed can be increased.

The utility model provides a bending machine for metal material manufacturing, and belongs to the technical field of metal material machining. The bending machine for metal material manufacturing comprises a supporting structure and a bending structure. The supporting structure comprises a fixing frame, a supporting piece and two supporting rollers, and the two supporting rollers are rotationally connected to the two sides of the fixing frame. The bending structure comprises a first threaded rod, an adjusting part and a bending roller, the first threaded rod and the second threaded rod rotationally penetrate through the fixing frame, a second movable frame is in threaded connection with the second threaded rod, the driving part is installed on the first movable frame, the adjusting part is installed on the second movable frame, and the bending roller is connected with the adjusting part. And the bending roller is mounted between the driving part and the adjusting part. The bending radian can be conveniently adjusted in the bending process, so that the bending requirements of different bending radians can be met, and meanwhile, the bending device can be bent into an uncommon circular truncated cone shape to be used more conveniently.

This utility model provides a measuring tool for detecting the runout of the outer circle of a UF outer star wheel relative to the inner arc track. It includes a base plate and a rotating structure, a clamping and fixing structure, and a measuring structure mounted on the base plate. The rotating structure includes a bearing seat and a rotating shaft. The bearing seat is fixed to the base plate and contains a bearing. The rotating shaft is located in the bearing and rotates relative to the bearing seat. The clamping and fixing structure includes an outer cylinder and a pull bolt. An inner cylinder is located at the top of the outer cylinder, and a reference ring is fitted around the top of the inner cylinder. Multiple rectangular grooves are spaced circumferentially on the top of the reference ring, and steel balls are movably placed in these grooves. The pull bolt includes a top clamping part and a bottom connecting part. The clamping part is in the shape of an inverted frustum, and its outer wall abuts against the steel ball. The connecting part connects to a drive assembly, which drives the pull bolt to move up and down. The measuring structure includes a dial indicator, which is fixed to the upper end of a vertical rod via a cantilever. The vertical rod is located on one side of the bearing seat.