52results about How to "Improve forging precision" patented technology

The invention relates to a free hydraulic forging press comprising a frame press body, a mobile worktable and a hydraulic cylinder, wherein the frame press body comprises an upper cross beam, a sliding block, upright posts and a lower cross beam, and the mobile worktable is connected with the press body. The free hydraulic forging press is characterized in that the frame press body is in an integral pre-stressed structure, that is to say, each upright post is in a hollow structure; a pre-stressed pull rod penetrates through and is arranged in a center hole of each upright post and extends outof the upper cross beam and the lower cross beam; pre-stressed nuts are respectively arranged at the end part of each pre-stressed pull rod; a plunger piston unbalance loading resisting mechanism is arranged on the hydraulic cylinder; a guide device is arranged between the upright post and the sliding block; a stepped mobile mechanism is arranged below the mobile worktable; and a leveling device is arranged below the mobile worktable. The invention has the advantages of large nominal force, strong unbalance loading resistance, long sliding stroke and the like; and the mobile worktable has long moving stroke.

The invention discloses a forging process of an aluminum alloy wheel hub. The forging process comprises the following steps that a pre-machined square aluminum alloy blank material is heated to 150 DEG C to 260 DEG C, and heat preservation is carried out for 0.2 hour to 0.5 hour; the square blank material is heated to 300 DEG C to 350 DEG C for the first time, heat preservation is carried out for0.3 hour to 0.5 hour, then second heating is carried out, the temperature ranges from 400 DEG C to 460 DEG C, and heat preservation is carried out for 0.4 hour to 0.6 hour; a mold of a forging machineis pre-heated, wherein the heating temperature ranges from 200 DEG C to 300 DEG C, and heat preservation is carried out for 0.2 hour to 0.4 hour; the square blank material in S20 is placed in the forging mold of the forging machine in S30 to be forged, wherein the forging temperature ranges from 440 DEG C to 480 DEG C, and a hub blank of a disc-shaped structure is formed; and after the hub blankis cooled, edge cutting and polishing are carried out on the hub blank, wear-resisting powder is sprayed, and the finished hub is obtained. According to the forging method, the utilization rate of aluminum alloy is increased, the structural strength is high, and safety is high.

The invention relates to the technical field of bearing production equipment, in particular to a bearing intelligent precision forging automatic production line which comprises a feeding mechanism, anupsetting mechanism, a punching flattening mechanism, a continuous reaming mechanism, a finishing diameter mechanism and a discharging mechanism, wherein the feeding mechanism comprises a feeding component and a pushing component; the upsetting mechanism comprises an overturning component and an upsetting component; the overturning component is arranged at the tail end of the pushing component; the punching flattening mechanism is arranged by the side of the upsetting component; the continuous reaming mechanism comprises a conveying component and a continuous reaming component; the conveyingcomponent is arranged by the side of the punching flattening mechanism; the continuous reaming component is arranged at the tail end of the conveying component; the finishing diameter mechanism is arranged at the tail end of the continuous reaming component; and the discharging mechanism is arranged at the tail end of the finishing diameter mechanism. The bearing intelligent precision forging automatic production line can realize automatic processing of bearing precision forging, lowers the labor intensity, shortens the blank transferring distance, reduces the temperature differences of different processing parts of the blank, and improves the production efficiency and the bearing precision.

The invention relates to a no-riser and no-ingot tail forging method for a large-scale wind power main shaft; before heating and forging, a riser and a ingot tail of a steel ingot are cut off by a saw, then a jaw of pliers of a manipulator is used for clamping the steel ingot without the riser and the ingot tail, and then the processes of upsetting, drawing out, rolling circle, forging steps and upsetting flange are carried out; the jaw of the pliers of the manipulator includes pliers arms (2), sleeve seats (4) and ball-head cylinders (5); the number of the pliers arms (2), the sleeve seats (4) and the ball-head cylinders (5) is two, one piece is at the left and the other piece is at the right, one end of the left pliers arm (2) is articulated with one end of the right pliers arms (2) by a gemel (1), the other ends thereof are respectively provided with the left sleeve seat (4) and the right sleeve seat (4), the left ball-head cylinder and the right ball-head cylinder (5) are respectively pass through the left sleeve seat (4) and the right sleeve seat (4); the ball-head ends of the left ball-head cylinder and the right ball-head cylinder (5) are arranged at the inner sides of the left sleeve seat (4) and the right sleeve seat (4) in a left and right antithetic manner, and the other ends thereof are provided with a fixed pin (6) by inserting along the radial direction. The method of the invention can reduce forging processes, improve production efficiency, shorten forging time and enhance forging precision and forging quality.

The invention relates to a forging process of a gear ring. The process includes following steps that: 1) in first firing, an ingot is heated to 1150 DEG C, and the ingot is subjected to heat preservation for 0.5 hour, dead head pressing, chamfering and sprue filing are performed on the ingot; 2) in second firing, re-heating, upsetting and drawing out are performed on the machined ingot; 3) in third firing, re-heating, upsetting, rotary flattening, punching and reaming are performed on the machined ingot; 4) in fourth firing, the machined ingot is re-heated, upsetting is performed on the machined ingot in a mold ring so that the machined ingot can be in a technique size, the mold is removed, and reaming is performed on the machined ingot so that the machined ingot can be in a technique size, and truing is performed, and machining is completed; 5) heat treatment is performed: the machined ingot is heated to 860 DEC C to 880 DEC C, and heat preservation is performed on the machined ingot for 5 to 5.5 hours, and the machined ingot is subjected to air cooling to 520 DEC C, and the machined ingot is heated to 610 DEC C to 630 DEC C, and heat preservation is performed on the machined ingot for 2 to 2.5 hours, and the machined ingot is subjected to air cooling to 260 DEC C. The forging process has high precision. With the forging process adopted, thickness of the wall of the gear ring can be uniform, and the service life of the gear ring can be prolonged.

The invention discloses a device for descaling by spraying water on a preliminary forging of a gear, which belongs to the technical field of gear production. Including the control structure, the circulating water tank, the conveying tunnel on the circulating water tank, the chain conveying structure arranged in the conveying tunnel, the feeding structure arranged at the front end of the chain conveying structure, and the unloading structure arranged at the rear end of the chain conveying structure , at least one spray head arranged in the conveying tunnel, a filtered water tank arranged on the circulating water tank, a high-pressure pump arranged on the circulating water tank and at least one photoelectric sensor arranged on the conveying tunnel, the filtered water tank communicates with the circulating water tank , the filtered water tank is connected to the water inlet of the high-pressure pump through a pipeline, and the water outlet of the high-pressure pump is connected to the sprinkler head through a pipeline with a solenoid valve. The sprinkler head is located directly above the chain plate conveying structure and in front of each sprinkler head Correspondingly, there is a photoelectric sensor below, the photoelectric sensor is flush with the workpiece on the chain plate conveying structure, and the control structure is electrically connected with the photoelectric sensor, high-pressure pump and solenoid valve.

The invention relates to a mechanical deformation compensation control method for a forging hydraulic press. The mechanical deformation compensation control method is characterized by comprising the working flow that 1), a signal is input to control the opening degree of a servo valve so as to enable movable beams of the press to rapidly descend; 2), after the movable beams are in contact with a forging piece, the movable beams are turned into work, and the frame is deformed by the central force or eccentric load force; 3), the stress strain gauges pasted on the frame are subjected to stress change when the frame is deformed, the resistance values of the strain gauges change, and measured changed electrical signals are fed back to a system; 4), the fed back signals are compared, the signals and the measured values of a displacement sensor are calculated, the actual size of a workpiece is obtained, and the specific calculation method is given below; 5), when forging is completed once, the movable beams return back to the designated position; and 6), the system stops or returns to the first step to carry out the secondary forging. By the adoption of the mechanical deformation compensation control method, the defects of a traditional control method are overcome, the influence of a mechanical body of the forging hydraulic press under the eccentric load working condition on the force deformation in the forging process is fully taken into account, and the forging precision of the forging piece is improved.

The invention discloses a forging process of a rotary drilling mast. The forging process comprises the following steps of heating a rod-shaped steel piece material block, the heated rod-shaped steel piece blocks are placed in a die of a forging machine, carrying out pre-forging and blank making by a forging press along the axis direction of the rod-shaped material block to obtain a cake-shaped and solid prefabricated drill mast blank, punching the center of the prefabricated drill mast blank from a punch to obtain a prefabricated drill mast blank with a through hole; continuously heating the prefabricated drill mast blank, and carrying out multiple expansion on the through hole of the prefabricated drill mast blank with the through hole by a punch on a forging machine; carrying out pressing operation on the prefabricated drill mast subjected to multiple reaming in the step under a forging machine to obtain a pre-formed blank; and the pre-formed blank is heated, and the heated pre-formed blank is subjected to final forging by a forging machine to obtain the rotary drilling mast forging. The forging process is used for improving the utilization rate of the steel, the forging precision is improved, the structural strength is high, and the production efficiency is improved.

The invention discloses an intelligent plastic forming process method and intelligent plastic forming equipment used for the same. The process method sequentially comprises the steps that three-dimensional modeling and plastic deformation digital simulation are conducted, an automatic programming system with a machine learning function is adopted for completing analysis and programming of the forming step of a forge piece, a steel ingot is heated, closed-die upsetting is conducted on the steel ingot, and plastic forging forming is conducted by squeezing a blank on an intelligent plastic forming hydraulic machine through rolling tools. According to the equipment, intelligent manipulators installed on the intelligent plastic forming hydraulic machine drive intelligent pressing heads to rotate around the axes in the horizontal direction or the vertical direction, and wedging angles larger than zero degree are formed by the squeezing surfaces of the rolling tools on the intelligent pressing heads and the surface of the forge piece; a supporting device can drive the forge piece to rotate and move; a sensing system can obtain data of the temperature of the forge piece, the pressure of the rolling tools on the forge piece and the forge piece metal flowing displacement and send the data to a control system; the control system controls actions of all components. According to the intelligent plastic forming process method and the intelligent plastic forming equipment used for the same, the forging precision is high, materials are saved, no special molds are needed, the forging flexibility is high, and the cost is low.

The invention discloses a manufacturing method of a CuNi90/10 alloy socket welding flange. The manufacturing method comprises the following steps that S1, die manufacturing is conducted, specifically,an outer die and a punch are manufactured according to the boundary dimension of the CuNi90/10 alloy socket welding flange; S2, heating and blank making are conducted, specifically, a CuNi90/10 alloyingot is heated to a forging temperature, the temperature is kept for a certain period of time according to the diameter of the ingot, and the ingot is forged on a forging hammer into a blank capableof being put into the outer die; S4, die preheating is conducted, specifically, the die manufactured in the step S1 is preheated in a heating furnace, and the blank manufactured in the step S2 is putinto the outer die for die pressing until a die cavity is filled with CuNi90/10 alloy; S5, punching is conducted, specifically, blind hole punching and through hole punching are sequentially conducted on the die-pressed CuNi90/10 alloy through the punch; and S6, cooling is conducted, specifically, after die forging, the CuNi90/10 alloy material is withdrawn from the die cavity, cooling treatmentis conducted on the CuNi90/10 alloy material, and then the CuNi90/10 alloy socket welding flange is obtained through turning. The manufacturing method is reasonable and effective, and has the advantages of raw material saving, small cutting amount, low production cost, high performance of manufactured products and the like.

The invention discloses a large railhead precision forging machine. The large railhead precision forging machine structurally comprises a hydraulic oil tank, oil cylinders, vertical columns, a liftingworkbench, a precision forging block, laser locators, a die table, a base, a laser locator controller, a control cabinet, operation keys, a hydraulic station, a hydraulic oil pipe and a top plate, wherein each laser locator comprises a filter lens, a tube body, a laser diode, a fixing seat, mounting holes and a laser angle adjustment valve; in order to achieve the purposes of high forging precision of the large railhead precision forging machine and good precision retainability after the large railhead precision forging machine is pressed, the railhead precision forging machine is provided with the top plate, the lifting workbench and the base, the four vertical columns uniformly and equidistantly arranged at the bottom of the top plate penetrate through the lifting workbench so that thetop plate is connected with the base, thereby forming an integrated movable structure to achieve the good precision retainability after pressing; the precision forging block is provided with the laserlocators, shape positioning is performed on dies of the die table during precision forging, thereby improving the forging precision and improving the production efficiency.

The invention provides a forging method for an alloy femoral component forged part, which can improve the percent of pass of the angle of an collodiaphyseal angle, improve the dimensional precision ofthe forged part and improve the mechanical property of the forged part so as to ensure the percent of pass of the alloy femoral component forged part and prolong the service life of the alloy femoralcomponent forged part. The forging method comprises the following steps of S1, designing a femoral component die; partitioning a die cavity according to an area of a cross section of the die cavity;and taking a cavity partition with the minimum cross section as a reference partition and reducing the height of a bridge part thereof for other cavity partitions according to a ratio of the cross sections of the other cavity partition and the reference partition; S2, pre-forging a femoral component blank of an alloy material for precision forging; S3, performing flash-cutting, polishing and trimming treatment on the pre-forged femoral component blank; S5, finally forging the collodiaphyseal angle of the heated femoral component blank after pre-bending; and S6, treating the forged femoral component product to obtain a product femoral component.

The invention relates to an all-hydraulic die forging hammer which comprises a U-shaped lathe bed, wherein the U-shaped lathe bed is provided with an all-hydraulic power head; the all-hydraulic power head comprises a working cylinder; a hammer lever is mounted in the working cylinder; the lower end of the hammer lever is connected with a sliding block; guide grooves are respectively formed in the first side surface and the second side surface, which are contacted with the lathe bed, of the sliding block; each guide groove is internally provided with a groove bottom surface, as well as a first guide surface and a second guide surface arranged on the groove bottom surface, wherein both the first guide surface and the second guide surface are inclined planes; guide rails are arranged on the opposite inner side wall surfaces of the U-shaped lathe bed respectively, and are inserted into the guide grooves to be in sliding fit with the guide grooves. The all-hydraulic die forging hammer has the advantage of high guide precision, and the die forging precision is not affected by a temperature rise.

The invention discloses a forklift drive axle half shaft forging technology, which comprises a following technological step that a, a bar material steel ingot is cast, and according to weight percentage, the chemical components in the steel ingot are: C which is larger than or equal to 2.25% and smaller than or equal to 2.45%, Si which is larger than or equal to 1.4% and smaller than or equal to 2.4 %, Mn which is larger than or equal to 0.6% and smaller than or equal to 1.4%, P which is larger than or equal to 0.007% and smaller than or equal to 0.125%, S which is larger than or equal to 0.006% and smaller than or equal to 0.026%, Nb which is larger than or equal to 0.01% and smaller than or equal to 0.05%, Al which is larger than or equal to 1.5% and smaller than or equal to 2.20%, Mg which is larger than or equal to 0.25% and smaller than or equal to 0.35%, and the balance Fe. According to the method, the problems that the process is complicated and overloaded, the energy consumption is high, the efficiency is low, the forging precision is low and the like in the traditional forging method are overcome, so that the development trend of future energy conservation and emission reduction is facilitated.

The invention relates to a forging forming process for an iron ornamental part product. According to the process, low-temperature warm forging pattern preforming is adopted to replace cold forging pattern preforming; moderate-temperature warm forging forming is adopted to replace traditional high-temperature forging forming; electrical heating is adopted to replace fire coal heating; and process flows and the preparation of a mold are reasonably standardized. Compared with the common traditional high-temperature heating forging, by adopting the warm forging forming technology, the surface quality and the heating efficacy of the iron ornamental part product can be remarkably improved, the heating oxidation loss of a material is reduced, and the workshop cost of forging after-treatment is greatly reduced. A low-temperature warm forging and moderate-temperature warm forging forming process is a novel forging forming process with both advantages of high-temperature forging forming and advantages of cold forging forming. According to the forging forming process for the iron ornamental part product, higher forging precision, higher material yield and higher heating and after-treatment efficacy are integrated, and thus, the technical content and the additional value of the iron ornamental part product can be beneficially improved.

The invention relates to the field of steel processing equipment, and particularly relates to a feeding and discharging device for an annular heating furnace. The feeding and discharging device comprises a rack, a trolley and a grabbing mechanism, wherein the trolley is arranged on the rack in a sliding mode, and the grabbing mechanism is arranged on the trolley; the grabbing mechanism comprises two parallel claw beams, the middle parts of the two claw beams sleeve the interior of a first double-hole bearing seat, the top of the first double-hole bearing seat is hinged to the bottom of the trolley, clamping pincers of which notches are opposite are respectively arranged one end of the two claw beams on the same side, the other ends sleeve the interior of a second double-hole bearing seat,a lifting air cylinder is arranged between the second double-hole bearing seat and the trolley, the telescopic end and the cylinder body end of the lifting air cylinder are respectively hinged to thetop of the second double-hole bearing seat and the bottom of the trolley, a clamping cylinder is arranged between the two claw beams, swing arms are respectively hinged to the telescopic end and the cylinder body end of the clamping cylinder, and the other ends of the two swing arms are fixedly connected with the two claw beams respectively. According to the feeding and discharging device, the degree of automation of feeding and discharging processes of the annular heating furnace can be increased, and remote operation control is realized.

The invention discloses a manufacturing process for a shaft coupler. The manufacturing process comprises the following steps of: a, putting steel ingot into a smelting furnace to heat to 1120 DEG C, clamping the steel ingot by a pressure clamp, performing bottom chewing on the steel ingot and chamfering the steel ingot; b, re-heating the blank obtained in the step a to 1200-1250 DEG C, upsetting the blank, drawing out the blank, cogging down the blank, and controlling a primary forging ratio to 2.0-2.5; c, re-heating the blank obtained in step b to 1100-1150 DEG C, upsetting the blank, drawing out the blank, flattening the end surface of the blank and printing the blank according to a figure number; d, re-heating the blank obtained in step c to 1000-1050 DEG C, and putting the blank into a mould ring to upset and form a rear-end gear blank flange end; e, re-heating the blank obtained in step d to 950-1000 DEG C, drawing out a small shaft end of the blank to a process dimension by a core rod, controlling a shaft end total forging ratio to be greater than or equal to 5, trimming and straightening the blank; f, mounting a semi-finished product obtained in the step e into a processing center to process, firstly processing the outline of the semi-finished product and then processing an inner hole; and g, performing thermal treatment on the semi-finished product obtained in step f, and coating the processed semi-finished product for preservation. The manufacturing process for the shaft coupler disclosed by the invention is long in service life.