27results about How to "Guaranteed size requirements" patented technology

The utility model discloses a composite material cylindrical support forming die in the technical field of dies, which comprises a mandrel, a plurality of inserts are mounted on the mandrel, a first limit flange and a second limit flange are sleeved at two ends of the mandrel, a first fastening flange is arranged on the mandrel and positioned on the outer side of the first limit flange, and a second fastening flange is arranged on the mandrel and positioned on the outer side of the second limit flange. A second fastening flange is arranged at the position, located on the outer side of the second limiting flange, of the mandrel, and a paving area is formed among the mandrel, the insert, the first limiting flange and the second limiting flange and used for paving prepreg to finally form the cylindrical support.

The invention relates to an ultra-long air valve alloy and a grinding method and device thereof, and belongs to the technical field of air valve alloy manufacturing. The method comprises the steps that a feeding table and a discharging table are placed on the left side and the right side of the centerless grinding machine correspondingly, and supporting devices used for fixing the air valve alloy are arranged on the sides, away from the centerless grinding machine, of the feeding table and the discharging table correspondingly; the air valve alloy sequentially passes through a feeding table, a centerless grinding machine and a discharging table and is fixed through the supporting device; grinding the air valve alloy by using a centerless grinding machine, wherein the grinding process comprises a rough grinding procedure and a fine grinding procedure which are sequentially carried out; the rough grinding procedure comprises a first rough grinding procedure and a second rough grinding procedure which are sequentially carried out; the grinding amount of each time of grinding is controlled to be the same, it is guaranteed that fluctuation generated by air valve alloy in the grinding process is relatively small, and roundness and straightness are guaranteed. And finally, accurate grinding treatment is conducted, and it is guaranteed that the surface quality and roughness of the air valve alloy meet the requirements.

This invention discloses a horizontal connector positioning and support adjustment device for cross-pipe construction. The device consists of a top plate mounted on a frame assembly. A support base is positioned on one side of the frame assembly along its central axis, and two support bases are equally spaced on the other side of the frame assembly along the central axis. The three support bases are arranged in an isosceles triangle, and each support base is connected to an adjusting bolt assembly. The end of the adjusting bolt assembly furthest from the frame assembly is mounted on a prefabricated platform. The height, tilt angle, and rotation angle of the top plate are finely adjusted by adjusting the bolt assembly. A connector assembly is positioned on the side of the top plate furthest from the frame assembly, connecting to the cross-pipe connection section. Adjusting the position of the connector assembly along the front-back and left-right sides of the top plate aligns the cross-pipe connection section with the port of the intermediate pipe section of the cross-pipe, ensuring the accuracy, efficiency, and safety of the cross-pipe construction.

The application relates to the technical field of nuclear fuel assembly manufacturing, and particularly discloses a nuclear fuel assembly casting type upper tube seat machining clamp and a machining method, wherein the tube seat blank is placed on a bottom plate, a positioning top block is pushed, four positioning pins below a positioning push rod are centered with positioning holes of the tube seat blank; then a positioning rod B is screwed to shorten the distance with a positioning rod A; then locking screws and fastening bolts on the edge frame of a positioning frame plate are locked to fix the tube seat blank on the bottom plate, positioning is realized; finally, the positioning rod B is completely screwed out of the positioning rod A, the bottom plate, the positioning frame plate and the tube seat blank are integrally taken out and fixed on a machining equipment. The machining clamp and the machining method satisfy the positioning clamping and machining requirements of the casting type upper tube seat, the upper tube seat after machining completely satisfies the drawing and technical condition requirements, and the machining scheme satisfies the engineering production.

The invention relates to the technical field of gear machining, in particular to efficient internal spline differential radial reciprocating grinding equipment which comprises an equipment base, a cutter mounting mechanism and a workpiece machining mechanism. The tool mounting mechanism comprises a mounting base, a tool sliding block, a supporting base, a rotating shaft and a machining tool. The workpiece machining mechanism comprises a workpiece base, a workpiece sliding block, a fixing base, an axial workpiece driver, a radial workpiece driver and a workpiece rotation driver. The axial workpiece driver is used for driving the workpiece seat to move left and right along the axial sliding rail; the radial workpiece driver comprises a movable plate, a movable sliding block, a movable sliding rail, a side wing plate, a lead screw, a workpiece radial motor and a connecting lug; the workpiece rotation drive is used for driving the internal spline workpiece to complete rotation operation at a preset angle. According to the invention, the machining operation of axial reciprocating motion and radial feed grinding can be completed while grinding feed is performed between the forming grinding cutter and the internal spline of the workpiece, so that the purpose of grinding spline deformation fine trimming treatment is achieved, and the machining precision of the internal spline is improved.

The invention belongs to the technical field of aviation machining, and discloses a numerical control machining method for a magnetically soft alloy large-length-diameter-ratio thin-wall rotary workpiece, which comprises the following steps of: clamping the outer circle of the workpiece, penetrating a mandrel through an inner hole, and carrying out rough machining and finish machining on the outer circle at one end of the workpiece; turning around, clamping the outer circle of the workpiece, enabling an inner hole to penetrate through a mandrel, and performing rough machining and finish machining on the outer circle of the other end of the workpiece; the outer circle of the workpiece is clamped, the end face of the workpiece is flattened, an inner hole is bored, and back gouging is conducted on the root of the hole; and turning around, clamping the outer circle of the workpiece, flattening the end face of the workpiece, and turning and adjusting a threaded hole. The problem that in the existing thin-wall part machining process, wall thickness uniformity and consistency control are poor is solved, the machining efficiency is high, and the machining quality is stable and reliable.

The invention relates to the technical field of spline machining, in particular to high-precision internal spline finish machining equipment. Comprising a workbench, a cutter clamping mechanism and a workpiece clamping mechanism. The tool clamping mechanism comprises a fixing plate, a stand column, a tool base, a tool assembly and a driving assembly. The tool assembly comprises a tool post and a tool bit. A connecting piece is further arranged between the tool post and the connecting pipe, so that the tool and the tool base can be sealed, fastened and installed through preset fastening force, and the tool can be conveniently and rapidly disassembled; the driving assembly is configured to drive the fixing plate to move by a preset distance and complete the grinding operation that the tool bit is axially fed to the spline workpiece in a reciprocating mode. The workpiece clamping mechanism comprises a supporting plate, a mounting base, a three-jaw chuck and a feeding assembly. The feeding assembly is configured to drive the supporting plate to move leftwards by a preset distance to reach the designated grinding position of the cutter so as to complete grinding operation of the cutter on the spline workpiece. The device is reasonable in structural design, the deformation coping effect of the internal spline of the workpiece after heat treatment deformation is improved, and the precision of the internal spline of the workpiece is improved.

The utility model discloses a movable automatic copper foil breadth detection device. The device comprises a movable rack assembly; the guide roller assembly is mounted at the top of the movable rack assembly and is used for guiding the copper foil; and the detection assembly is mounted at the top of the movable rack assembly and is used for detecting the breadth of the copper foil guided by the guide roller assembly. The beneficial effects of the utility model are that the movable rack can be transferred at will, and one device can measure the breadth of all splitting machines; the double-rotor linear motor drives the correlation laser sensor to detect, and moves from the two ends to the middle to detect the breadth of the copper foil. In addition, the photoelectric sensor is arranged at the front end of the laser sensor, approaching of the copper foil is detected in advance, speed reduction is carried out in advance, higher detection precision is guaranteed, and the accuracy of the breadth of the copper foil is guaranteed. The structure is simple, practicability is high, and universality is wide.

The utility model discloses a contactor ceramic brazing clamp which comprises a base, a limiting sleeve, a pressing column, a pressing plate, a limiting piece and a guide column. The limiting sleeve is arranged in the base, the pressing column penetrates through the pressing plate, the limiting piece is arranged below the pressing plate, the guide column is connected with the base, and the pressing plate is connected with the guide column in a sliding mode. According to the utility model, the air tightness leakage rate of the seat plate assembly after vacuum brazing can be ensured, and various size requirements of the seat plate assembly can be ensured.

The utility model discloses a tungsten steel step type inner hole drill bit, including drill handle, drill body and setting cutting portion in front of drill body, the drill handle is used for with lathe main shaft connection, the drill body is the main body support structure of drill bit, its inside is equipped with cooling channel, the cutting portion includes fixed cutting tool bit and movable cutting tool bit, the fixed cutting tool bit fixed mounting is in the top of drill body, the movable cutting tool bit movable mounting is in the inside of drill body, the inside of drill body is provided with movable slot for installing movable cutting tool bit, is connected with tool bit removal control subassembly on movable cutting tool bit, tool bit removal control subassembly drives movable cutting tool bit and moves in movable slot radial movable to adjust cutting diameter. The utility model has realized to the one -time processing of step type inner hole, need not multiple replacement different specifications' tool, has greatly simplified the operation process, has improved processing efficiency.

The utility model relates to a trimming device for a rubber and metal combined sealing element. At present, a traditional edge trimmer and manual trimming have the problems that the trimming quality and efficiency are low, the economic cost is high, and the trimming appearance and size requirements cannot be met at the same time. The T-shaped nut is shaped like a Chinese character'gan 'and comprises a T-shaped component and a nut-shaped component, and the nut-shaped component is arranged on the T-shaped component. A first groove is formed in the T-shaped part, a second groove is formed in the nut-shaped part, the T-shaped part is sleeved with the combined sealing part, a rubber lip above the combined sealing part is embedded in the first groove, and the nut-shaped part is arranged below the combined sealing part to lock the combined sealing part. And a rubber lip below the combined sealing element is embedded in the second groove. The trimming quality and efficiency are improved, the economic cost is low, and the trimming appearance and size requirements can be met at the same time.

The application discloses a processing method for a thin-wall vortex end sealing sleeve, which can realize the processing of the special thin-wall vortex end sealing sleeve part, and meanwhile, the required size and shape tolerance of the part are ensured. The method comprises the following steps: turning the two end faces of the part blank to remove surface impurities; performing flaw detection to ensure that the part blank is free of defects; clamping the outer circle of the part by three claws, and performing end face alignment, rough turning of one end face and inner hole of the part; supporting the inner hole by soft three claws, and performing end face alignment, rough turning of the other end face and outer circle of the part; milling the petal shape on the thin wall of the part, and drilling through holes on each petal part; supporting the inner hole by soft three claws, and performing end face alignment, fine turning of one end face of the part; using a turning tool, fine turning of the other end face, outer circle and inner hole of the part; using an 80 clamp; and performing 90 inspection.

The invention discloses a full-automatic wafer size grinding control device and method, and relates to the technical field of wafer grinding measurement, the full-automatic wafer size grinding control device comprises a wafer information acquisition module, a coarse grinding and fine grinding first measurement evaluation module and a coarse grinding and fine grinding process dynamic adjustment module, through cooperation of equipment such as a two-dimensional scanning gun, accurate acquisition of grinding information is achieved, and the grinding precision is improved. Rough grinding first measurement is carried out according to a ten-thousandth-micrometer measurement and system analysis to evaluate the wafer state; the number of grinding turns is adjusted according to multiple times of measurement and intelligent calculation in rough grinding; fine grinding first measurement is combined with multi-data evaluation, and dynamic adjustment is also performed according to measurement and calculation during fine grinding. According to the device and the method, an MES system and intelligent manufacturing equipment are utilized, accurate evaluation and intelligent adjustment are carried out in all working procedures, various defects of traditional manual grinding are effectively overcome, the wafer grinding precision, efficiency and quality are improved, and wafer grinding is promoted to advance towards intelligent production.

The invention discloses a special tool for conical thin-walled tube parts in the technical field of tools, which comprises a tool core rod, one end of the tool core rod is provided with a center hole, the tool core rod comprises a first threaded section and a second threaded section, a cone is arranged between the first threaded section and the second threaded section, the first threaded section is provided with a first nut, and the second threaded section is provided with a second nut. And a second nut is arranged on the second threaded section. According to the scheme, the conical thin-walled pipe part can be conveniently clamped and machined.

The invention discloses a stepped deep hole machining method and belongs to the field of numerical control machining. When a stepped deep hole is machined, a small hole drill bit is bent under stress, torsion combined torque is large, the coaxiality of a drilled large hole and a drilled small hole is poor, and the roughness of the inner wall face of a drilled hole is large. According to the deep hole machining method, the deep hole is machined in a segmented mode on the front face and the back face, namely, a large-diameter hole in one side of a workpiece is machined firstly, the workpiece is turned over and aligned, and then a small-diameter hole in the other side of the workpiece is machined, so that on one hand, the length of the deep hole machining tool can be reduced, and the problem that in the deep hole machining process, the machining precision is poor due to the fact that the machining tool is too long is solved; meanwhile, the coaxiality of the two deep holes can be ensured; and on the other hand, when the large-diameter hole is machined firstly and then the small-diameter hole is machined, flowing of cooling liquid is facilitated, and therefore sufficient cooling and chip removal of the workpiece are achieved. The method is mainly used for stepped deep hole machining.

The utility model discloses a shaping assembly, which is characterized in that an upper die, a lower die and a middle die are matched, a part is placed on the middle die, a to-be-shaped part on the part is aligned on a shaping hole through alignment of an alignment column, and then the downwards-pressed part of the upper die is placed in the middle die through a shaping machine, so that the size of the to-be-shaped part is accurately corrected. According to the design, the structure is simple, operation is convenient, the size requirement of machined parts is effectively met, meanwhile, milling machining is omitted, high-precision alignment press-fit shaping can be achieved, the machining cost of mechanical parts is reduced, and the machining efficiency is improved.

The utility model discloses an automobile side plate pin spin riveting workbench, and relates to the field of automobile side plate assembly production. The workbench is mounted on the machine tool frame; the tray positioning and lifting device is mounted on the workbench; the hydraulic spin riveting device is fixed on the machine tool frame; the upper end of the first workpiece lifting and locking device is mounted on the workbench, and the lower end of the first workpiece lifting and locking device is mounted on the hydraulic spin riveting device; the tray moving and fixing mechanism is mounted on the workbench; the first tray limiting device and the second tray limiting device are symmetrically mounted on the tray moving and fixing mechanism. The automobile side plate pin spin riveting workbench is mainly used for spin riveting of automobile side plate pins, and the size requirement of the pins after spin riveting can be met. According to the utility model, the problem that the working stability and safety of equipment are reduced due to the fact that a workpiece is easy to deviate from a processing position in the prior art is solved, the working stability and safety of the equipment are improved, and the workpiece is limited during processing so as to prevent the workpiece from deviating from the processing position.

A support welding clamp comprises a clamping seat, a locking screw, a jacking block, a positioning pin, a limiting plate and an inner hexagon screw. The locking screw is fixed in a threaded hole of the clamping seat, the bottom of the jacking block is attached to the clamping seat, the front end of the locking screw is inserted into the jacking block, and the jacking block and the locking screw are connected through the positioning pin; the short edge of the limiting plate is tightly attached to the step of the clamping seat so as to ensure that the long edge of the limiting plate is perpendicular to the step of the clamping seat, and then the limiting plate is fixed to the clamping seat through an inner hexagon screw. The device is simple in structure and convenient for workers to operate. And the production efficiency is also improved under the condition that the size requirement of the assembly is ensured.

The invention belongs to the technical field of machining, and particularly relates to a machining method for a thin-wall barrel-shaped part made of permalloy. The machining method comprises the following steps that a bar is blanked; putting the bar into a machine tool, randomly selecting one end as a chuck for clamping, and turning an inner circle after the end surface of the other end is flattened; turning an outer circle to form an outer circle positioning surface, and cutting off the chuck; the inner circle and the outer circle of the part are positioned through a mandrel and a back cap respectively, and then the end face is machined; and removing the back cap, and performing finish turning on the outer circle. According to the machining method, the problem that the form and location tolerance is affected by radial deformation generated in the machining process of the permalloy thin-wall barrel-shaped part is solved, the percent of pass is increased, and meanwhile the machining efficiency is high.

The utility model relates to a kind of cuboid component two end face synchronous grinding equipment capable of synchronously feeding and discharging, belong to grinding processing technical field, solve the problem of low efficiency of cuboid steel piece two end face processing in prior art.The utility model includes synchronous grabbing device, first grinding wheel and second grinding wheel, and first grinding wheel and second grinding wheel are used for grinding the two end faces of cuboid component respectively;Synchronous grabbing device includes first horizontal moving mechanism, first vertical moving mechanism, second vertical moving mechanism, first suction mechanism and second suction mechanism, first suction mechanism is connected with first vertical moving mechanism, second suction mechanism is connected with second vertical moving mechanism, first vertical moving mechanism and second vertical moving mechanism are driven by first horizontal moving mechanism and move synchronously along horizontal direction, first suction mechanism is used to adsorb to be ground cuboid component, and second suction mechanism is used to adsorb to have ground cuboid component.

The invention relates to the field of machining, in particular to a machining method for a bearing seat of a turbocharger and a clamping tool of the bearing seat. Comprising a bearing seat drilling jig, a bearing seat drilling tool and a bearing seat turning tool. The process route is reasonably arranged, the kidney-shaped groove and the hole are machined after rough machining, and the situation that the hole and the groove are machined firstly, and deformation occurs after finish machining is avoided; meanwhile, a reasonable turning tool is designed, clamping deformation is avoided, and the important size and the geometric tolerance requirement of the important size are guaranteed through one-time clamping; a reasonable drilling tool is designed, pin holes in the circumference are machined in a numerical control machining center at a time, the size and position requirements of the pin holes are met, and finally parts meeting the drawing requirements are machined, so that the problems that according to an existing turbocharger bearing seat machining method in the prior art, due to the fact that the parts are copper parts, the local wall thickness is too small, and the machining cost is low are solved. And clamping deformation is easily caused.

The invention provides a helicopter torque arm square arm assembly gluing device and method.The device comprises a base 1, a supporting plate 2, a positioning bush 3, a pressing bush 4, a pressing nut 5, a pressing bolt 6, a first sealing gasket 7, a second sealing gasket 8, a gluing core rod 9 and a torque arm square arm assembly 10, and the shape of the base 1 is matched with the structure of the torque arm square arm assembly; n threaded holes are machined in the bottom plate and used for installing supporting columns, N unthreaded holes and N threaded holes are machined in wall plates on the two sides of the base 1, the N unthreaded holes are used for installing positioning bushings 3, and the N threaded holes are used for installing positioning bush fixing screws and preventing the positioning bushings 3 from rotating and moving. The supporting plate 2 is placed on the base 1, the shape of the supporting plate 2 is arranged according to the structure of a square arm assembly of the torque arm, and a rubber pad is bonded to the supporting plate 2. The N positioning bushings 3 are installed on the base 1 in an interference fit mode.

The present invention relates to the technical field of assembly tooling, and in particular to an assembly tooling for stainless steel cylinder accessories. The stainless steel cylinder accessory assembly tooling includes a cylinder support part for supporting a stainless steel cylinder, a branch pipe tooling support part is provided on the upper plane of the cylinder support part, and branch pipe assembly tooling part one, branch pipe assembly tooling part two, and branch pipe assembly tooling part three are provided on the branch pipe tooling support part. Branch pipe assembly tooling part one, branch pipe assembly tooling part two, and branch pipe assembly tooling part three are located around the stainless steel cylinder. The stainless steel cylinder accessory assembly tooling positions the cylinder by the cylinder support part, and then the angle positioning holes on the branch pipe tooling support part are connected to the branch pipe assembly tooling to ensure the direction angle requirements of each axial direction; the branch pipe assembly tooling ensures the angle and size requirements of the branch pipe. In this way, the positioning of the tooling ensures that all dimensions can meet the technical requirements, and at the same time greatly improves the production efficiency.

The utility model belongs to the technical field of energy storage battery, especially a pipe joint assembly and battery pack heat management system, battery pack heat management system includes battery pack shell and pipe joint assembly, pipe joint assembly includes: pipe joint, contains flange portion, first outer joint part and second outer joint part and first inner joint part and second inner joint part, and sealing washer, be located in the sealing groove of flange portion inboard surface. The utility model's flange portion, first outer joint part, second outer joint part, first inner joint part and second inner joint part are all through injection moulding integrally formed, it has the advantages that convenient installation and small installation area, sealing washer is clamped in the sealing groove through interference fit with anti -skid boss simultaneously, thereby prevent its falling off phenomenon in the transportation process or assembly, guarantee the convenience of user's use.

The utility model discloses a lathe positioning fixture belongs to mechanical technical field, and the body center is equipped with a locating spindle, and the body is equipped with two double -end bolts on both sides of locating spindle, the lower side plate body of movable bending press plate is provided with a waist type hole, and two double -end bolts respectively match and pass through the waist type hole of movable bending press plate lower side plate body of respective side, and the upper side of two movable bending press plate lower side plate body is equipped with the shoulder hexagon nut with screw thread connection on double -end bolt, and the lower side of two movable bending press plate lower side plate body is fixed with two struts on the body, and the body is equipped with a stopper on one side of one of the struts, and the stopper is provided with a bolt, and the end of bolt projects from the stopper, and the end of bolt is equipped with a press plate, and one side of press plate is attached to the stopper, and the other side of press plate is equipped with hexagon nut a with screw thread connection on the end of bolt. The utility model can effectively solve the positioning and clamping problem of irregular high-precision profile parts on the lathe.

The invention discloses deburring equipment for precision parts, and relates to the field of machinery, in particular to the deburring equipment technology for the precision parts, an idle wheel and a cutter block are positioned on a cutter bar at the same time, the elastic strength of a spring B is adjusted through a nut, it is guaranteed that the precision parts cannot be overcut in the cutting process, and the peripheral size and tolerance requirements of the precision parts are met. Through the cutting mode and the cooperative use of the dust collection device and the scrap baffle, dust pollution caused by an existing polishing and deburring technology is prevented, it is guaranteed that cutting scraps are not splashed and discharged in time, the cleanliness requirement of precision parts is met, the error rate and the rejection rate of manual operation are reduced, and the production efficiency is improved.

The utility model discloses a rock wool board automatic segmentation film sticking machine which comprises a frame body, a conveying mechanism arranged on the frame body, and a heating roller, an aluminum foil guide roller, a fixed heating roller, an aluminum foil roller fixing device, a film cutting flying saw and an edge cutting saw which are sequentially arranged on the frame body, and an adhesive aluminum foil coil is arranged on an aluminum foil roller fixing shaft; the adjustable heating roller, the aluminum foil guide roller, the fixed heating roller and the aluminum foil roller fixing shaft are sequentially arranged on the frame body to form a film pasting part, and the film cutting flying saw and the edge cutting saw form a cutting part. The device can greatly improve the efficiency of pasting the aluminum foil on the rock wool and reduce the labor intensity. Meanwhile, accurate segmentation is achieved, and the appearance quality and size requirements of products are guaranteed.