173 results about "Machine building" patented technology

The utility model discloses a kind of claw pole automation cleaning production lines, it is related to mechanical manufacturing technical field, and its technical scheme main points include cleaning mechanism and conveying belt, the conveying belt is set in the downside of cleaning mechanism, the cleaning mechanism includes drum conveying component, and the drum conveying component is used to convey material frame;The steering drum component is set in the end of drum conveying component;The truss is set in the side of steering drum component away from drum conveying component, and mechanical hand is set on truss, and the mechanical hand is used to grab claw pole in material frame;The cleaning machine is set in the side of truss, and the cleaning machine is used to clean the claw pole grabbed on mechanical hand, effect is through mechanical hand standardization grabbing and placing claw pole, reduce the defect such as bruise caused by artificial feeding, reduce quality risk, through drum conveying component and steering drum component optimization field layout, reserve forklift passageway, facilitate to reduce artificial feeding operation.

The application discloses a kind of linear cutting continuous processing methods of seat body large aperture parallel group hole, belong to mechanical manufacturing technical field.This method is first with seat body A face as reference, planing, planing seat body shape and concave surface to drawing size;Again, workpiece is once clamped and aligned, and linear cutting molybdenum wire is used along preset trajectory to continuously cut, and all large aperture through hole is simultaneously processed, and 45° chamfer bevel is reserved at cutting place;Finally, intermittent welding is used to cutting seam, and workpiece temperature is strictly controlled not to exceed 80 DEG C to prevent thermal deformation, and after welding, weld is ground flat to make surface flush with concave surface.The application is characterized by linear cutting without mechanical cutting force, solves the problem that tool is easily appeared in traditional boring machine processing, through hole taper is big, parallelism is poor, effectively guarantees the size and shape accuracy of through hole.Workpiece is only single clamping, and it is free from dependence on high-skilled operators, processing efficiency and product consistency are significantly improved, and it is suitable for batch processing of large-size seat body parallel deep hole of 45 steel.

The utility model relates to mechanical manufacturing field discloses a kind of welding tooling intermediate connecting piece positioning device, including workbench, the top of the workbench is fixedly connected with slide rail, the outer wall of the slide rail is slidably connected with support, the top of the workbench is fixedly connected with fixed plate, the top of the workbench is placed with main body, the inner wall of the main body is provided with connecting piece, the right side wall of the support is fixedly connected with moving rod, the inner wall of the moving rod is provided with movable mechanism, the top of the workbench is provided with limit component, and the movable mechanism includes top block.In the utility model, the bracket is moved by electric control slide rail drive, the cooperation of long rod and extrusion groove is utilized, and the linkage of top block and movable spring is utilized, the automatic positioning of connecting piece on main body is realized, the cumbersome operation of manual welding after lifting by tool is replaced by artificial, labor intensity is reduced, and welding efficiency is improved.

The application relates to a torque limiter, belonging to the technical field of mechanical manufacturing. The torque limiter comprises a driving end flange, a driven end flange and a plurality of ejector pin devices. The plurality of ejector pin devices are arranged at intervals along the circumference of the driven end flange and are connected with the driven end flange; and the plurality of ejector pin devices are arranged in pairs symmetrically relative to the central axis of the driven end flange. The ejector pin devices are movably connected with the driving end flange. In normal working conditions, the torque is transmitted by the contact between the force applied by the ejector pin devices and the driving end flange; when the system is overloaded, the overload force overcomes the force applied by the ejector pin devices to make the ejector pin slide or displace to cut off the power, thereby quickly responding to the protection system, and the torque limiter can be automatically reset after the overload is eliminated. In addition, the torque is uniformly distributed due to the symmetric distribution and the movable connection characteristics, the work is stable, and the convenience and the work efficiency of the equipment are remarkably improved.

This utility model relates to the field of mechanical manufacturing technology and discloses a preforming fixture, including a control cabinet and a lower support. A feeding device is mounted on the top surface of the lower support, a moving device is mounted on the right side of the feeding device, and an upper support is mounted on the bottom of the feeding device. An upper mold pressing and forming device is installed inside the upper support, and a moving scanning mechanism is mounted on the right side surface of the upper support. The control cabinet is mounted on the left side of the lower support. This preforming fixture uses multiple servo electric cylinders to perform multi-stage molding of torsion-shaped parts, and combines scanning equipment and analysis software to achieve automatic detection, analysis, and forming of the workpiece. The entire production process is fast, smooth, and precise, greatly improving production efficiency and reducing manual intervention. The equipment has been optimized in design, achieving miniaturization and lightweighting while ensuring functionality, adapting to the processing needs of torsion-shaped parts of various sizes, and reducing the equipment's footprint.

This application provides a rigid and stable welding fixture for bolster plates, relating to the fields of rail transit and machinery manufacturing. It includes a base and a pair of upright plates mounted on the base. The left upright plate has an opening, and the right upright plate has a receiving groove, the receiving groove being opposite to the opening. A support plate and an auxiliary plate are positioned between the pair of upright plates. A cover plate is located on top of the support plate, and the bolster plate is located at the bottom of the auxiliary plate. One side of the support plate passes through the opening, and the other side of the support plate is located in the receiving groove. A cable is located at the bottom of the support plate, one end of which is connected to the bottom of one side of the support plate, and the other end of which extends along the length of the support plate and passes through the receiving groove. The other end of the cable is wound around a roller. This application has the characteristic of being able to counteract the welding stress generated during welding, thereby improving the welding effect of the bolster plate on the cover plate and preventing product deformation.

A kind of gauge for detecting connecting rod small head wedge bevel symmetry, for mechanical manufacturing field.The big base plate, small base plate is fixed on the two sides of base respectively, and the diamond pin that is adapted to the big head hole of connecting rod, the positioning mandrel that is adapted to the small head hole of connecting rod is fixed on the two sides of base, for fixing the anti-rotation pin direction of diamond pin is installed in base, and table block is placed in the side of connecting rod wedge bevel;The gauge further includes table frame and percentage indicating table;The inclination of the upper plane of base is consistent with the inclination of connecting rod wedge bevel.The utility model has the advantages of simple structure, easy to manufacture and detect and debug, and is convenient and fast for on-line detection of connecting rod wedge bevel symmetry, compared with the existing three-coordinate detection method, and its intuitive detection data is more convenient for cutter and fixture debugging during processing, quickly guides operator to adjust equipment, can effectively improve the detection efficiency of connecting rod wedge bevel symmetry, reduce the labor intensity of detection personnel, and reduce production cost.

The application relates to the field of mechanical manufacturing, and discloses a special punching robot for numerical control blade production, which comprises a working box, the inner wall bottom of the working box is fixedly connected with a sliding rail, the surface of the sliding rail is slidably connected with a sliding plate, a fixing mechanism comprises a fixing disc, the top of the fixing disc is fixedly connected with the sliding plate, the surface of the fixing disc is fixedly connected with a mounting frame, the top of the mounting frame is fixedly connected with a storage cylinder, the top of the storage cylinder is fixedly connected with a conveying pipe, the top of the fixing disc is fixedly connected with an elastic pipe, the top of the elastic pipe is fixedly connected with a pushing disc, and the end, away from the storage cylinder, of the conveying pipe is fixedly connected with the top of the pushing disc. Through the fixing mechanism, when the exhaust film is telescopically inserted into the drilling hole of the numerical control blade, the internal cooling liquid is input into the exhaust film through the mounting ring, and the cooling liquid is conveyed into the drilling hole through the exhaust cavity at the bottom and the surface exhaust holes of the exhaust film, so that the inside of the drilling hole on the surface of the numerical control blade is cooled and cooled.

This invention relates to the field of drilling technology, and specifically discloses a drilling device for manufacturing metal agricultural machinery, comprising: a processing table having a table surface and support legs disposed at the bottom of the table surface; a first electric slide rail symmetrically mounted on the outer side of the processing table, the interior of which is slidably connected to a moving plate via an electric slider; two sets of limiting frames, each set having a lifting assembly fixedly connected to its bottom; a chip removal device fixedly connected to the outer side of the limiting frame via a bracket; and a reinforcing bracket fixedly connected to the bottom of the processing table, the outer side of which is fixedly connected to a second electric slide rail, the interior of which is slidably connected to a sliding plate via an electric slider. This drilling device for manufacturing metal agricultural machinery eliminates the need for direct contact with the inner wall of the hole when cleaning debris, thus avoiding scratches and abrasions.

The utility model belongs to the field of mechanical manufacturing and hot processing technology, and specifically relates to an automatic material pouring device for hot die forging production, the turnover frame top is provided with two transmission rollers, all are rotationally provided with rotary rods on the two transmission rollers, all are provided with toothed driven wheels on the two rotary rods, both sides of the turnover frame are provided with a motor support, and transmission motors are installed on the two motor supports, when the transmission block drives the turnover gear on the rotary rod to move upwards to a certain position, the turnover gear and the turnover rack are meshed to drive, automatic turnover of the hopper box is realized, the design does not need an additional power device to drive the turnover of the hopper box, the structure of the equipment is simplified, the manufacturing cost and the maintenance difficulty of the equipment are reduced, the turnover angle of the hopper box can be accurately controlled through reasonable design of the parameters of the turnover gear and the turnover rack, the turnover angle can be adjusted according to different hot die forging production requirements, and it is ensured that the materials can be completely poured out.

The application discloses a composite surface treatment method for improving corrosion resistance and wear resistance of metal workpieces, and relates to the technical field of mechanical manufacturing and metal surface. The method comprises the following steps: pretreating a non-nitrogen-permeation stainless steel base; performing a multi-stage gas nitriding process on the pretreated base, sequentially carrying out strong nitriding at a first temperature and a first nitrogen potential decomposition rate, diffusion at a second temperature and a second nitrogen potential decomposition rate, and secondary strong nitriding at a third temperature and a third nitrogen potential decomposition rate, so as to build a continuous and dense nitride compound layer; and then coating a composite coating containing hard wear-resistant particles and thermosetting resin on the surface of the nitriding layer and performing solidification to form an encapsulation coating. The application also relates to a metal workpiece with a three-layer structure of a composite coating, a nitriding layer and a stainless steel base prepared by the method. The method is particularly suitable for non-nitrogen-permeation steels such as 2605 stainless steel, and can significantly improve the service life and comprehensive performance of the non-nitrogen-permeation steels under extreme working conditions of strong corrosion and high wear.

The utility model relates to mechanical manufacturing and surface treatment technical field especially, it relates to a kind of polishing equipment based on abrasive belt self-adapting wear compensation, including base, four connecting arms are rotationally connected in the upper portion of base, two rotating rollers are installed in base, one rotating roller is rotationally connected in the end of two connecting arms forward extension, four rotating rollers are commonly sleeved with abrasive belt, the end of every two connecting arms forward extension is commonly installed with brush roll, brush roll and abrasive belt outer side contact, base is provided with the tensioning assembly for tensioning abrasive belt, the adjusting assembly for automatically adjusting the tensioning degree of tensioning assembly to abrasive belt is slidably connected in the upper portion of base. Through motor drive transmission rod reverse rotation, through first gear and first rack drive, connecting rod pulls connecting arm to expand outward, abrasive belt is stretched transversely to increase tension, realize the dynamic compensation of tension after abrasive belt wear, maintain polishing efficiency and surface quality stability.

This application relates to a dry gas sealing structure device for a horizontal sand mill, belonging to the field of mechanical manufacturing technology. It includes a first stationary ring seat, a bushing, a gland assembly, and a second stationary ring seat. The first and second stationary ring seats are sealed at both ends of the gland assembly. An atmospheric-side stationary ring and an atmospheric-side moving ring are sealed between the first stationary ring seat and the bushing. A media-side moving ring and a media-side stationary ring are sealed between the second stationary ring seat and the bushing. An elastic structure is provided to abut against the media-side moving rings. An air film is formed between the sealing surfaces of the atmospheric-side stationary ring and the atmospheric-side moving ring, and between the sealing surfaces of the media-side stationary ring and the media-side moving ring. A dynamic pressure spiral groove is formed on the opposite end faces of the atmospheric-side stationary ring and the media-side stationary ring. This application can achieve sealing of the sand mill while preventing powder particles inside the mill from contacting the liquid.

This utility model belongs to the field of mechanical manufacturing technology, and specifically relates to an internal keyway planing device for a planer. It can process internal keyways of workpieces with unlimited length, and its installation and operation are relatively simple. It includes a tool holder, on which a pressure plate that can move vertically is provided. One end of the pressure plate is provided with a detachable tool rod, and the other end of the tool rod is provided with a detachable cutter head. The tool holder consists of an upper tool holder and a lower tool holder, integrally formed. The planing device has a simple and reasonable structural design, is easy to install, and the tool holder and pressure plate are made of medium carbon steel, while the tool rod is made of alloy structural steel, resulting in high strength and rigidity. The tool rod is accurately positioned without adjustment; the cutter head is installed in a square hole and secured with a locking screw. The extension height can be adjusted according to the keyway size, providing good adaptability, and the cutter head is easy to install and remove.

The application discloses a workpiece top holding force automatic adjustment method and relates to the technical field of mechanical manufacturing. L Data preparation: calculating the top holding force F L ; tailstock position adjustment: through the numerical control system, the servo motor is powered on to drive the tailstock to move forward to the target grinding station; feeding: through the mechanical arm, the workpiece to be processed is placed above the station; centering: through the servo hydraulic drive mechanism, the tailstock center is driven into the tailstock hole of the workpiece; grinding: the headstock drives the workpiece to grind through the workpiece automatic driving device, and the top holding force F L is adjusted according to different grinding positions of the workpiece; and discharging. The application can automatically adjust the top holding force of the workpiece and can adapt to different sizes and weight specifications and different machining precision requirements.

This invention relates to the field of mechanical manufacturing and welding automation technology, and discloses a method and system for real-time compensation of welding deformation of a skeleton based on dynamic feedback. The method includes acquiring three-dimensional geometric model data of the skeleton, material thickness distribution data, and welding path sequence data; processing this data to obtain an initial heat distribution map and a thermal deformation lag time series; extracting the superposition parameters of sequential thermal effects from the sequence, inputting these parameters into a preset neural network prediction model to obtain a predicted value of asynchronous deformation trend; if the predicted value exceeds a preset trend threshold, acquiring an adjustment signal to obtain a real-time compensation vector; updating the welding path sequence data based on the real-time compensation vector to obtain an optimized thermal deformation lag time series, which is then input into the neural network prediction model for iterative verification; if the superposition parameters of sequential thermal effects converge, obtaining the final predicted deformation distribution map; and generating a welding process control command sequence based on the distribution map. This method can solve the problem of low geometric accuracy in welded components.

This invention provides a multi-station variable diameter positioning and clamping device for dry electrolytic polishing of hole-type parts, belonging to the field of mechanical manufacturing. It includes: a motor and a conductive slip ring, wherein the motor and the conductive slip ring are connected by a coupling; the conductive slip ring is connected to a multi-station fixture disk via a detachable connection device; a positioning shaft is provided on the multi-station fixture disk; a variable diameter rod and a stirring rod are provided on the positioning shaft; the variable diameter rod includes a main body rod and a tapered adjusting mandrel; the main body rod is made of an elastic material; an axial slot is provided in the middle of the main body rod, and a tapered hole is provided at the bottom; the tapered adjusting mandrel is disposed in the tapered hole, and the radial width of the axial slot is controlled by controlling the depth of the tapered adjusting mandrel in the tapered hole to achieve variable diameter; a clamp is provided on the variable diameter rod; this invention provides a device suitable for dry electrolytic polishing of various hole-type parts and possessing multi-station clamping capability.

The utility model discloses aluminum alloy frame positioning stamping device relates to mechanical manufacturing technical field, including base, the upper side fixed connection of base has lower module, and the side swing joint of lower module is away from base has upper module, and the upper module is provided with frame stamping assembly, and frame stamping assembly includes the slide block and extruding plate swing joint on the upper module and the spring and annular block swing joint on the upper module, and the slide block will drive extruding plate and move down and realize stamping, and the annular block is contacted with aluminum alloy frame surface when stamping, and the extruding plate and lower module are commonly provided with frame positioning assembly, and frame positioning assembly includes the circular disc and baffle swing joint on lower module and multiple positioning blocks swing joint on extruding plate, and the baffle can resist the edge of aluminum alloy frame, and multiple positioning blocks can position aluminum alloy frame and move down.

This invention provides an adaptive fastener gripping device and a fastener tightening device, relating to the field of automated machinery manufacturing. The invention comprises two aspects: First, an adaptive fastener gripping device, in which multiple grippers are circumferentially connected to one side of a gripping housing, forming a gripping opening, and an elastic element engaging with the grippers; in a non-gripping state, the grippers are constrained by the elastic element, and the gripping opening is in its initial state; in a gripping state, the grippers overcome the elastic force of the elastic element and rotate relative to the gripping housing, increasing the initial gripping opening to accommodate the fastener. Second, an adaptive fastener tightening device, in which a mounting groove adapted to a tightening gun is provided on the upper side of the gripping housing, the output end of the tightening gun is connected to a tightening assembly, and the tightening assembly extends to the gripping opening. This invention can adaptively grip fasteners of different sizes, avoiding damage to fasteners due to excessive gripping force and parts falling off due to insufficient gripping force.

This invention relates to the field of mechanical manufacturing technology and discloses an anti-deformation support fixture for grinding aluminum alloy cookware. The fixture includes a frame and a cookware body. A positioning support mechanism is mounted on the frame, comprising a support column rotatably mounted on the frame for supporting the cookware body. A grinding mechanism is mounted on the frame, and a centering component is mounted on the support column. The positioning support mechanism of this invention enables bidirectional top-to-bottom clamping from both sides of the flat bottom of the cookware body, applying the main clamping force to the bottom where the workpiece has the strongest rigidity. This avoids the thin-wall deformation problem easily caused by traditional unidirectional side-wall clamping. Combined with the centering component, the inner wall is extended and tightened during clamping, achieving centering of the cookware body. With the avoidance component, it can actively avoid interference during grinding, ensuring that the grinding wheel can complete the complete grinding of the entire continuous surface of the inner and outer walls without interference, achieving efficient double-sided synchronous processing.

This invention relates to the field of mechanical manufacturing technology, and discloses a method and system for automatically selecting and designing molds for retaining rings and spring machines. The method includes: obtaining the basic parameters of the retaining ring to be processed, and determining the final machine model that meets the requirements of each processing stage based on the basic parameters; calculating the width-to-thickness ratio based on the width and thickness of the retaining ring to be processed, and determining whether it meets the requirements for fan-shaped processing based on the width or width-to-thickness ratio; if it meets the requirements for fan-shaped processing, determining the inner arc angle of the fan-shaped cut based on the basic parameters of the retaining ring to be processed and the final machine model; if it does not meet the requirements for fan-shaped processing, determining the punching angle based on the cut type and application, and selecting or designing a mold for the retaining ring to be processed. This invention achieves full automation and intelligence in the selection and design of retaining ring and spring machine molds by obtaining the basic parameters of the retaining ring, improving the efficiency and accuracy of mold design, and accurately matching processing parameters according to the specifications and process requirements of the retaining ring, reducing the reliance on the professional skills of operators.

This invention discloses a machine vision-based weld defect detection device for mechanical manufacturing welded parts, including a worktable, a camera mounted on a support, an image processing device mounted on the front of the top of the worktable, a cleaning mechanism mounted on a U-shaped frame, a water tank mounted on the top surface of the U-shaped frame with a mixing mechanism inside, a cleaning mechanism mounted on a second U-shaped frame, a fixing mechanism on the top surface of a second connecting rod, a connecting block fixed to the bottom of the second connecting rod, a servo motor mounted on the side of the worktable, and a drive mechanism mounted on the output shaft of the servo motor. This invention utilizes the coordinated use of adjusting component one, adjusting component two, the drive mechanism, the cleaning mechanism, and the tilting mechanism to first bring the welded part into contact with the grinding block, facilitating the removal of residual weld slag, spatter, and oxide scale from the weld seam. This prevents residual weld slag, spatter, and oxide scale from obscuring weld defects and improves the accuracy of weld seam detection.

The utility model discloses a kind of special-shaped part drilling and tapping machine, belong to mechanical manufacturing technical field, including rack, still include: driving mechanism, multidirectional clamping mechanism, drilling and tapping mechanism and waste collection mechanism, the driving mechanism is installed in rack left side, three multidirectional clamping mechanism are installed on driving mechanism, the drilling and tapping mechanism is installed in rack upside, the waste collection mechanism is installed in rack right side, the driving mechanism includes: first linear module, second linear module and transverse plate, the first linear module is fixedly installed in rack left side, the second linear module is fixedly installed in the output end of first linear module, the transverse plate is fixedly installed in the output end of second linear module. By the above mode, the utility model can be quickly clamped to the front, rear, left, right and up and down orientation of workpiece, and can continuously tap and punch.

This utility model discloses a three-axis cylinder machining platform for easy positioning, relating to the field of mechanical manufacturing technology. The utility model includes a work plate and a three-axis cylinder disposed above the work plate. A sliding block is fixedly connected to the bottom of the work plate. It also includes: a fixing part disposed on the work plate; and a lifting part disposed on the work plate. The three-axis cylinder contacts the top of the work plate. The fixing part includes a moving component disposed on the work plate; and a fixing component disposed on the work plate. The moving component and the fixing component are fixedly connected. By incorporating a fixing part, this utility model solves the problem that during machining, external forces can cause the three-axis cylinder to shift, making it difficult to maintain a stable position, resulting in machining errors and significantly reducing the production quality of the three-axis cylinder.

This invention discloses a method for optimizing the manufacturing process of segmented welded long shafts based on digital twin technology, belonging to the field of mechanical manufacturing technology. The method specifically includes the following steps: constructing a physical twin and a digital twin of the segmented welded long shaft. The physical twin includes a multi-dimensional sensing system, a data acquisition and transmission system, and an execution control system. The digital twin includes a multi-physics simulation model, a state estimation module, a predictive analysis module, and an optimization decision-making module. Pre-simulation analysis is performed based on the multi-physics simulation model to generate an initial welding sequence and process parameters. During the segmented welding process, multi-source data is collected in real time through the multi-dimensional sensing system. This invention improves the predictive accuracy of the digital twin through real-time monitoring and feedback of the welding process; and reduces cumulative deformation and residual stress by dynamically adjusting the welding process parameters, thereby improving welding quality.

This invention relates to the field of printing machinery manufacturing technology and discloses a printing roller rounding machine with machine vision flaw detection. The machine includes a base with a groove on its top. A movable seat is slidably connected to the inner side of the groove. A flaw detection mechanism is located on the top right side of the movable seat. The flaw detection mechanism includes a bracket, which is fixedly connected to the rear end of the top right side of the movable seat. A hydraulic rod is fixedly connected to the inner side of the bracket, and a connecting rod is rotatably connected to the top of the hydraulic rod. An arc-shaped plate is rotatably connected to the front side of the bracket. This invention uses a motor to drive a lead screw to rotate, which in turn moves the movable seat, enabling the flaw detection mechanism and the rounding mechanism to move freely along the printing roller axis. It can perform full-coverage scanning of printing rollers of different lengths and specifications, and uses a polarizing filter in conjunction with a lamp inside a hollow plate to supplement lighting, eliminating specular high-gloss reflections on the surface of the metal printing roller.

The utility model relates to mechanical manufacturing technical field especially relates to a series concatenation buckle formula equal-division variable pitch adsorption mechanism, include: mounting panel, open and close air cylinder, the one side of mounting panel is installed with open and close air cylinder to guide rail slider group, guide rail slider group, the one side of mounting panel is installed with guide rail slider group, adsorption group, be provided with adsorption group on guide rail slider group, buckle group, the one side of adsorption group is provided with buckle group to guide rail slider group, and buckle group is composed of a plurality of convex buckle and buckle pin, and the head-to-tail of each convex buckle is connected through buckle pin, and the groove that is used for the sliding of buckle pin is set up on convex buckle. The utility model through open and close air cylinder and buckle group cooperation and coordination, realized the synchronous adjustment of the spacing between each adsorption block in adsorption group, reduced the intervention of artificial, effectively avoided the spacing between each adsorption block of worker one by one adjustment, optimized operation step, greatly reduced the operation difficulty and time cost of worker.

The application discloses an adjustable swash plate body for mechanical manufacturing and a use method thereof and belongs to the technical field of mechanical manufacturing. The application comprises a fixed plate, the fixed plate is a cast swash plate body structure, the lower end plane of the fixed plate is used for being connected with a mechanical equipment platform, and the upper end of the fixed plate is a slope; a screw rod seat is fixed on the fixed plate through a fixing pin; the outer part of an adjusting screw rod is a trapezoidal thread structure, one end of the adjusting screw rod is matched with the screw rod seat, and the other end of the adjusting screw rod is matched with a moving plate; the moving plate is connected with a positioning seat through a sliding groove plate; the sliding groove plate is fixed with the moving plate through a first screw and is fixed with the positioning seat through a positioning screw and a second screw; the positioning seat is arranged on the slope of the fixed plate; and a pressing assembly is arranged on the fixed plate through a third screw. The application has the advantages of simple, compact and reasonable structure, stable and reliable use, convenience in processing parts with a slope feature, convenience in adjusting part machining center positions, and interchangeability of all parts.

The invention relates to the technical field of machine manufacturing, and provides a high-strength bearing and a preparation process thereof. The invention relates to a high-strength bearing which is composed of the following raw materials in percentage by weight: 0.86%-1.0% of C, 0.15%-0.35% of Si, 0.45%-0.6% of Mn, 1.2%-1.4% of Cr, 0.14%-0.25% of Mo, 0.2%-0.3% of Ni, less than or equal to 0.025% of P, less than or equal to 0.025% of S and the balance of Fe and inevitable impurities, and the ratio of (Mn + Cr) to (C + Mo) is (1.6-1.65): 1. Through the technical scheme, the problem of insufficient bearing strength in related technologies is solved.