43results about How to "Guaranteed Position Requirements" patented technology

The invention provides a periphery supporting mechanism of a reflecting mirror in a space remote sensing camera, and belongs to the periphery supporting mechanism of the reflecting mirror related in the technical field of space optics. The technical problem to be solved is to provide the periphery supporting mechanism of the reflecting mirror in the space remote sensing camera. The supporting mechanism comprises a mirror cell, flexible supporting slices and a bottom supporting plate, wherein the three flexible supporting slices are positioned between the mirror cell and the bottom supporting plate; the bottom of each flexible supporting slice is fixedly connected with the bottom supporting plate; the upper part of each flexible supporting slice is fixedly connected with the mirror cell; the three flexible supporting slices form a triangle structure opposite to the middle part of the mirror cell and the bottom supporting plate; the three flexible supporting slices are of class spring sheet structure in the form of a structure having thick upper side and thin lower side with the same width. The structure can pass large-magnitude vibration tests and can effectively reduce influence of temperature change and the like on surface figure precision on the premise of ensuring the surface figure precision of optical elements.

The invention provides a method for machining a deep hole. The method includes the steps that firstly, a drill bushing hole is machined, wherein the drill bushing hole 3 is machined in the center of the deep hole 5 needing to be machined in a part 4 to be machined; secondly, a drill bushing is inserted, wherein the drill bushing 1 is additionally arranged and installed in the drill bushing hole 3, and the center hole 2 of the drill bushing 1 and the deep hole 5 are the same in diameter; thirdly, the deep hole is drilled, wherein a lengthened drill bit passes the center hole 2 of the drill bushing 1 to drill the deep hole 5 into required depth. By the adoption of the technical scheme, compared with the prior art, the drill bushing generates certain guiding and fixing effects on the drill bit, the phenomenon that the drill bit vibrates is effectively controlled, the requirement for the machining depth is met, the requirements for the location degree and the roundness of the machined hole are met, and the drill bit is prevented from being broken off.

The invention discloses a battery tray bottom plate CNC finish machining fixing tool. The battery tray bottom plate CNC finish machining fixing tool comprises a tool body, and the tool body comprisesan air pressure structure plate, a horizontal positioning mechanism and a negative pressure acupoint adsorption mechanism; and a to-be-machined product is arranged on the air pressure structure plate,clamped in the horizontal positioning mechanism, positioned in the X and Y directions through the horizontal positioning mechanism, attached to all contact points in the vertical direction of the negative pressure acupoint adsorption mechanism 400 in a floating mode, and adsorbed in the Z direction through the negative pressure acupoint adsorption mechanism. In this way, according to the batterytray bottom plate CNC finish machining fixing tool, positioning requirements of the product in the horizontal direction can be effectively met, it can be guaranteed that all the contact points in thevertical direction are attached to the product in the floating mode through negative pressure acupoints, the periphery and hole positions can be machined at a time, thus multiple times of clamping isavoided, and the machining time is shortened.

The invention provides a positioning device for X-ray detection of GIS equipment. The system is fixed on the GIS equipment through a base, and an imaging plate fixing frame is used for clamping and fixing an imaging plate; a ray machine fixing claw is used for clamping and fixing a ray machine; a first movable sliding block is used for bearing the imaging plate to move in the circumferential direction and the radial direction of the base, and a second movable sliding block is used for bearing the ray machine to move in the circumferential direction and the radial direction of the base; the imaging plate and the ray machine move in the circumferential direction along the base so that multi-angle shooting of the X-ray machine can be guaranteed; the imaging plate and the ray machine move in the radial direction along the base so that the focal length can be well adjusted, and it is guaranteed that obtained imaging of the GIS equipment is clearer; and the imaging plate fixing frame can guarantee that the imaging plate is vertically placed and can also guarantee that the imaging plate is horizontally placed after rotating by 90 degrees, and the ray machine fixing claw guarantees that the position of the X-ray machine can meet the transillumination requirements of a vertical GIS and a horizontal GIS.

The invention discloses a male and female inlaid mould, mould and system for a sol-gel (SG) abrasive material microreplication forming hole. According to the male and female inlaid mould, mould and system for the SG abrasive material microreplication forming hole, distribution conditions of male mould units are adjusted according to the sizes of workpieces, the size of a related cutting-building side value and a manufacturing mode of a related mould, and the number of the male mould units is determined according to the size of blanking force and the size of the cutting-building side value; and a automatically-feeding system designed according to characteristics of a stepper motor is matched with a layout mode mentioned in the invention, and a machining system capable of continuously machining and blanking can be achieved through mutual matching.

The invention discloses a method and fixture for controlling welding deformation of an igniter. A technological threaded hole used for clamping is added in a large joint inner cavity of a boss of theigniter, a hole is designed in the middle part of a traditional positioning bolt, then, the boss is tensioned by employing a screw, so that the boss is fixed onto the bolt, and then, the boss not onlyis positioned but also is clamped; a square hole is formed in a suitable position of a fixture body corresponding to a welding seam, so that a welding gun is prevented from interfering with the fixture body, and an assembly is welded under a rigid constraint state; and a part welding way is changed, i.e., a part is changed into a vertical state from a horizontal state, so that the phenomenon thata welding pool of the welding seam sags due to self gravity to form excrescences making connection unreliable in the inner cavity is avoided.

The invention belongs to a processing technology for a precision component made of special material, and relates to a processing method for high-precision benchmark conversion of parts made of soft magnetic alloy. An auxiliary positioning tool is arranged, and the problem of mutual verticality of a plurality of surfaces can be solved; a high-precision benchmark block is matched for conversion of measurement benchmarks, and the problem that actual processing dimensions cannot be determined easily can be solved; the tool is adopted for conversion of the processing benchmarks, a processing supply terminal is arranged, and the defects that each part needs to be centered and measured each time when being processed can be overcome; and moreover, magnetic weakening can be avoided through optimizing processing parameters and selecting reasonable sand wheels and cooling methods. Compared with the conventional processing method, the problems of the traditional method that the parts cannot be clamped and positioned easily and need to be clamped and centered multiple times during processing can be solved; high position accuracy and dimensional accuracy of side faces can be guaranteed at the same time; and the processing efficiency can be increased greatly, good dimensional consistency can be maintained, and the processing quality can be stabilized.

The invention discloses a manufacturing method of a clamp for turning end faces. The manufacturing method comprises the steps that 1, clamping claws on a three-claw self-centering chuck are taken down, and three screw holes are formed in the end face of the three-claw self-centering chuck and symmetrically distributed on the end face of the three-claw self-centering chuck in the circumferential direction; and 2, positioning columns are screwed in the screw holes respectively, the lathe positioning columns are started to rotate along with the three-claw self-centering chuck for turning a face formed by the end points of the positioning columns, the end points of the positioning columns are made to be on the same plane, and the positioning columns extend out of the three-claw self-centering chuck and can make contact with the first end face of a workpiece. The manufacturing method is convenient to implement, and the manufactured clamp can ensure the depth of parallelism between the two end faces of the turned workpiece.

The invention relates to a cam conveying guide rail of a ring spinning frame for collectively doffing. The cam conveying guide rail (2) is fixed on a supporting foot (12) through a second bolt (11) and a positioning sleeve (13), a yarn tube (10) is sleeved on a cam (1) which is arranged in an open groove of the cam conveying guide rail (2), a supporting claw (3) is connected with a transmission rod (4) and the cam (1), the transmission rod (4) is connected with a pulley (5), the lower part of the cam conveying guide rail (2) is provided with a first bolt (8), the first bolt (8) is provided with the pulley (5), two sides of the pulley (5) are provided with a first shaft sleeve (6) and a second shaft sleeve (7), and the end head of the first bolt (8) is provided with a nut (9). The cam conveying guide rail (2) is made of aluminum alloy. The shape of the upper part of the cam conveying guide rail (2) is an oblong open groove, and the shape of the lower part of the cam conveying guide rail is two hollow oblong support plates, so the cam conveying guide rail has the advantages of difficult deformation and convenient installation.

The invention discloses a clamp body positioning mechanism suitable for a turning and milling combined machining center. The clamp body positioning mechanism comprises a transition disc fixed to a machine tool working table, a clamp body used for clamping a workpiece and a plurality of positioning assemblies between the transition disc and the clamp body, wherein the positioning assembly comprises a lower positioning sleeve located at the top of the transition disc and an upper positioning piece located at the bottom of the clamp body, the lower positioning sleeve comprises an annular positioning piece with a positioning hole and an elastic piece, and the elastic piece is located below the annular positioning piece; the hole wall of the positioning hole is an annular inner conical surface which is gradually inclined to the center from top to bottom; an arc-shaped inclined surface matched with the annular inner conical surface is arranged on the outer wall of the upper positioning piece; the upper positioning piece extends into the positioning hole of the lower positioning sleeve in a pluggable manner, and the annular inner conical surface and the arc-shaped inclined surface abut against each other to play a positioning role; an elastic force of the elastic piece drives the annular positioning piece to float up and down to change the matching position of the annular inner conical surface and the arc-shaped inclined surface, thereby adjusting the positioning precision.

The invention relates to the technical field of machining and clamps, in particular to a machining method and device for ultra-long and ultra-thin sleeve parts. According to the technical scheme, a turning machining mode is adopted, inner hole final machining is completed on a vertical numerical control lathe, outer circle final machining is completed on a horizontal numerical control lathe, the machining sequence is that the hole is machined first and then the outer circle is machined, a slotted sleeve is adopted for clamping in inner hole machining, and a thin-wall sleeve special device capable of changing the clamping force direction is adopted for outer circle machining. The machining of the ultra-long and ultra-thin sleeve type part is specifically completed through the three procedures of rough turning of an outer circle, turning of an inner hole and finish turning of the outer circle. The special device for the thin-wall sleeve is composed of an installation mandrel, a positioning sleeve, a pressing plate, a gasket and a pressing nut, and the clamping force direction is changed from the radial direction to the axial direction. The special device for the slotted sleeve and the thin-wall sleeve is adopted, so that the requirements for the size, the shape, the position precision and the surface roughness of the inner hole and the outer circle of the ultra-long and ultra-thin sleeve part are met. The method has the beneficial effects that the process method is simple and can be completed in one processing mode, and the production efficiency and the processing quality are high.

The invention relates to a heat insulation plate, a heat insulation plate mounting structure and a vehicle. The heat insulation plate comprises a heat insulation plate body, mounting parts are arranged on the left side and the right side of the heat insulation plate body, the mounting parts are of a double-layer structure formed by flanging the edge of the heat insulation plate body, and a flow guide part is formed on the front side of the heat insulation plate body and used for conducting flow guide on flowing-through gas and reducing the acting force of the gas on the exterior of the heat insulation plate. The invention further provides a heat insulation plate mounting structure which comprises the heat insulation plate. The invention further provides a vehicle which comprises the heat insulation plate mounting structure. The heat insulation board solves the problems that an existing heat insulation board is poor in reliability of installation points, the installation points are cracked, the strength is not enough, and then the heat insulation board falls off.

The invention relates to a combined machining tool and a combined machining method for a force bearing support plate. The combined machining tool comprises at least two sets of clamping tools, wherein each set of clamping tool comprises a base, a first stand column, a second stand column, a cross beam, a first shape follow-up clamping block and a second shape follow-up clamping block; the first stand columns and the second stand columns are vertically and oppositely arranged on the bases; the two ends of the cross beams are fixedly arranged at the tops of the first stand columns and the tops of the second stand columns correspondingly; and the first shape follow-up clamping blocks and the second shape follow-up clamping blocks are oppositely arranged on the inner sides of the first stand columns and the inner sides of the second stand columns and used for clamping the two sides of the force bearing supporting plate. According to the combined machining tool and the combined machining method for the force bearing supporting plate provided by the invention, the positioning requirement and the rigidity requirement of the force bearing supporting plate in the machining process can be met, the number of tools is reduced, and the machining efficiency is improved.

The invention discloses a precise hole machining method for a glue-containing laminated material, and belongs to the technical field of aerospace part preparation. The precise hole machining method is characterized by comprising the following steps that a, primary holes of an upper material and a middle rubber layer material in the laminated material are drilled by using a large-diameter drill bit, and then a bottom hole of a bottom material is drilled by using a small-diameter drill bit; b, a boring cutter sequentially passes through the upper material, the middle rubber layer material and the bottom material, the hole diameters of the primary holes and the bottom hole are enlarged correspondingly, and then grinding is conducted through a reamer; and c, finally, hole diameter expansion is conducted on the primary holes of the upper material and the middle rubber layer material and the bottom hole of the bottom material through the boring cutter, and fine hole machining of the rubber-containing laminated material is completed. According to the precise hole machining method, through cooperative use of the boring cutter and the reamer, machining correctness and machining efficiency of the holes in the different materials can be guaranteed, and the position precision and aperture precision requirements of the holes are guaranteed.

The invention discloses a welding positioning device for a vehicle front air storage cylinder assembly. The welding positioning device comprises a base, a first positioning seat, a second positioningseat, a third positioning seat, a fourth positioning seat, a fifth positioning seat, a sixth positioning seat, a seventh positioning seat and an eighth positioning seat; and all the positioning seatsand the base are positioned through mounting positioning pins, then all the positioning seats are connected with the base through bolts and nuts, the first positioning seat is arranged on one side ofthe base, the second positioning seat is arranged in the middle of the base, a first positioning face used for being positioned with the end face of one side of a cylinder body of a front air storagecylinder is arranged on the top face of the first positioning seat, the second positioning seat is connected with an upper plate, the upper plate is connected with a first positioning pin and a secondpositioning pin, and a second positioning face used for positioning the horizontal mounting face of a front tow hook is arranged on the top face of the upper plate. According to the welding positioning device, all parts of the front air storage cylinder assembly can be fixed conveniently, the precision requirements of the position and the size can be met during welding, welding is convenient, andthe time and labor are saved.

The invention relates to a radar-dome positioning method without a special tooling, and belongs to methods for positioning aircraft radar-domes outside frames. The back of a radar-dome sleeves a frameplate of a body and is fixed relative to the position of an aircraft, and coaxiality of the radar-dome relative to a theoretical axis is only related to deviation of the tip of the radar-dome relative to a theoretical position, so that a sharp point of the radar-dome can meet positioning requirements within a circle taking a theoretical center as a circle center and with the diameter of phi D. The positioning requirements of the radar-dome can be met outside the frames without the special tooling.

The invention discloses an eccentric jacking positioning mechanism, which comprises a stepped-shaft-shaped upright post fixed on a bottom plate, wherein a positioning block is connected to the top end of the upright post; a positioning pin is suspended at the other end of the positioning block; a movable eccentric jacking block is arranged on the upright post, and is fixed through a fastening nut; the bottom of a workpiece guide rail is arranged on the upright post; the workpiece guide rail is jacked by the eccentric jacking block on one side, and clings to the positioning pin on the other side. According to the eccentric jacking positioning mechanism, the eccentric jacking block is fixed on the tool bottom plate through the fastening nut, one side of the workpiece guide rail is fixed by the positioning pin, the eccentric jacking block on the upright post is rotated to jack the workpiece guide rail, and the workpiece guide rail is welded after the fastening nut is tightened, so that the positioning and dimensional requirements of the workpiece guide rail are ensured, and production requirements are met.