1181 results about "Bar stock" patented technology

The invention belongs to the technical field of machining equipment feeding, and particularly relates to punch press feeding equipment with an adjusting function, which comprises a material distribution bin and a punching lathe arranged on one side of the material distribution bin, and is characterized in that an outer frame bracket is arranged at the top of the material distribution bin in a sliding manner, a material frame is arranged in the outer frame bracket, and a material guide plate is arranged in the material distribution bin in a sliding manner; a material guiding plate is arranged on the base, a discharging adjusting plate is arranged at the top of the material guiding plate, a material distributing plate is arranged at the top of the discharging adjusting plate, a supporting plate is arranged at the bottom of the material guiding plate, and a mounting block is arranged on one side of the material guiding plate. And through arrangement of structures such as a mounting block and a detection block, the diameter and length of the bar can be detected, so that the stamping quality of the bar is improved, the bar can be cooled through arrangement of a water pipe and a water tank, and workers are prevented from being burnt by generated high temperature.

The invention relates to the technical field of rolling of high-temperature alloy ring forgings, particularly discloses a preparation method of an ultra-large-specification ring piece capable of resisting the temperature of 800 DEG C, and solves the problems that due to the fact that the size of the ring forgings is increased through alloy, cracking is prone to occurring, and the structure property control difficulty is large. The preparation method comprises the following steps that an alloy bar is cut and blanked according to the feeding weight of the ring forge piece, upsetting and punching are conducted on the bar after heat preservation treatment is conducted on the bar at the temperature of 1000-1150 DEG C, trestle chambering is conducted on a cake blank after heat preservation treatment is conducted on the cake blank at the temperature of 1000-1150 DEG C, rolling is conducted after heat preservation treatment is conducted on the cake blank at the temperature of 1000-1150 DEG C, and an alloy forge piece blank is obtained; and then standard heat treatment is conducted, and finally the GH4586 alloy ring forge piece with the diameter ranging from 400 mm to 1600 mm is obtained. According to the preparation process, the cracking tendency of the ring forge piece is greatly reduced, a uniform structure is obtained, and the comprehensive performance of the GH4586 large-size ring forge piece is guaranteed.

The invention provides an automatic metal bar cutting device, and relates to the technical field of metal bar machining equipment. A vertical frame is fixedly arranged on the top of the cutting table in a vertically upward mode, and a feeding frame used for conveying and straightening bars is fixedly arranged at one end of the vertical frame. A traction seat is fixedly arranged on the vertical frame at the inner end of the feeding frame; a feeding air cylinder is arranged on the back of the vertical frame in the feeding direction. Through the synergistic effect that the fixed wheel and the movable wheel in the feeding frame are matched with the straightening pressing rod, the straightening pressing rod is driven by the feeding air cylinder to extrude the protrusion of the movable wheel sleeve, the height of the movable wheel sleeve is forced to be dynamically adjusted under the action of the first spring, and it is ensured that the bar is always subjected to uniform straightening pressure in the conveying process. The vertical position of the straightening pressing rod can be rapidly adjusted through the adjusting screw rod, the straightening requirements of bars with different diameters are met, bending deformation of the bars is effectively eliminated, and the follow-up cutting precision and the finished product quality are remarkably improved.

The invention relates to the technical field of forge piece forming, in particular to a deep-cavity thin-wall support forge piece, a forging die and a forming method.The deep-cavity thin-wall support forge piece is characterized in that a heated round bar is subjected to roll forging to obtain a preformed blank, and oxide skin of the blank obtained after roll forging is removed; putting the prefabricated blank into a pre-forging cavity of a forming die, and performing pre-forging forming; after pre-forging is finished, the pre-forged piece is transferred into a precision forging cavity of the same forming die to be subjected to precision forging forming, and a bilaterally symmetrical precision forging piece is obtained; putting the bilaterally symmetrical precision forgings into a slicing die frame for trimming, and cutting off flashes; cutting the bilaterally symmetrical precision forgings subjected to cold shaping from the shunting bin through a cutting device, and separating the bilaterally symmetrical precision forgings into two independent single forgings; forming defects are eliminated, and the forging yield is improved to the level of stable mass production; the thickness tolerance of the functional surface of the product is ensured, the spot welding current stability and the welding strength are ensured, the assembly requirement is met, and the dependence on subsequent machining is reduced; the material cost is reduced and the mold life is prolonged.

The invention relates to the technical field of metal powder manufacturing products, in particular to an automatic ring part production line and a process control method.Bar heating furnaces of the production line are arranged on the inner side and the outer side of a guide rail in two rows and multiple sets, a transfer manipulator is arranged on the guide rail, a ring forging press machine is arranged at the front end of the guide rail, and a movable workbench is arranged at the ring forging press machine; the ring rolling machine is arranged in front of the ring forging press machine, the center line of the ring rolling machine and the center line of the ring forging press machine are obliquely arranged, a carrying mechanical arm is arranged between the ring rolling machine and the ring forging press machine, the conveying roller way is arranged in front of the ring rolling machine, and the center line of the conveying roller way and the center line of the ring rolling machine are obliquely arranged. The center line of the conveying roller way is parallel to the center line of the ring forging press, and the swing manipulator is arranged in an included angle formed by the ring rolling machine and the conveying roller way. According to the production line and the control method, the production process is optimized, the production efficiency is improved, and the production cost is reduced.

The invention discloses a weldless integral high-strength feeding drill rod and a preparation method thereof. The drill rod comprises a female connector, an elevator groove, a thick-wall slip clamping section, a drill rod pipe body and a male connector which are integrally formed and have the same inner diameter. The drill rod is manufactured by integrally machining a solid bar or a thick-wall pipe body. The yield strength of the drill rod pipe body, the yield strength of the thick-wall slip clamping section and the yield strength of the elevator groove are 135 ksi-180 ksi, and the yield strength of the male connector and the yield strength of the female connector are 130 ksi-150 ksi; the outer diameter of the thick-wall slip clamping section is larger than that of the drill rod pipe body; the outer diameter of the elevator groove is smaller than that of the clamping section of the thick-wall slip; the outer diameter of the elevator groove is not smaller than that of the drill rod pipe body. The outer diameter of the connector does not need to be obviously increased, meanwhile, enough elevator lifting capacity is guaranteed, and the problem of poor structure performance caused by friction welding seams and welding area heat treatment is avoided. Complicated welding, postweld heat treatment and other procedures are omitted, the possibility that a weld joint serves as a performance weak link is avoided, higher comprehensive tensile mechanical performance is achieved, and the method is suitable for well drilling application of extra-deep wells, ocean deep wells and the like.

The invention discloses a machining process of a bearing ring. The machining process comprises the following steps: a, blank manufacturing; b, manufacturing a rough blank; c, turning; and d, finish machining. Bar materials are cut to obtain blanks, then the blanks are machined through a forging machine to obtain rough blanks, the rough blanks are intensively stored and fed into a feeding box of the machining device, the feeding box automatically conveys the rough blanks to a first clamping assembly through a first feeding channel, the first clamping assembly is matched with a first turning part to machine the inner wall face of a ferrule, and the inner wall face of the ferrule is machined through a second turning part. After machining is completed, the ferrule is conveyed to a second clamping assembly through a second feeding channel, the second clamping assembly is matched with a second turning part to machine the outer wall face of the ferrule, and after machining is completed, finish machining is conducted on the ferrule to obtain a finished product. By means of the technology, automatic feeding and discharging of the rough blank are achieved, manual feeding and discharging are not needed, potential safety hazards are eliminated, and the machining efficiency is improved. The inner wall face and the outer wall face of the ferrule are automatically machined, batch production of the ferrule is achieved, and the machining efficiency of the ferrule is greatly improved.

The invention discloses a first-opening and second-closing type long bar end upset head forming die, relates to the technical field of steel bar upsetting, and aims to solve the problem that in the prior art, the head shape complexity and the forming quality are difficult to consider at the same time. The die comprises a forming die and a clamping die which are arranged along the axis of a bar and are both of a two-half split structure, and a continuous cavity is formed when the die is closed. The clamping die is not completely closed to effectively clamp a bar during die assembly, the forming die is completely closed to form a through rod forming cavity during die assembly, and an annular boss is arranged on the end face, away from the clamping die, of the forming die. The upset head is arranged on the same axis as the forming die and can move in the axis direction, a head forming cavity is formed in the end, close to the forming die, of the upset head and is composed of a head forming section and a guide section, and the annular boss of the forming die can enter the guide section and slide. The forging die has the advantages of open die forging and closed die forging, upsetting of complex head forms can be achieved, material gathering is effectively restrained, rod materials are prevented from being bent and folded, the forming quality is improved, and operation is convenient.

The invention relates to a method for forming a GH4169 alloy thin-wall ring piece, which comprises the following steps of: forging two pieces in the height direction in a combined manner, and designing a specific forging drawing, preparing a bar material, manufacturing a blank, rolling, carrying out heat treatment, turning and carrying out flaw detection, for example, designing the small allowance of the outer diameter and the inner diameter of the forging drawing, smelting the bar material in a specific specification by using a triple process, the method has the beneficial effects that the rolling stability is improved, the grain structure is refined, raw materials are saved, the production efficiency is doubled, the flaw detection requirement is met, and the method is suitable for manufacturing related parts in the aerospace field and has wide application prospects and important popularization value.

The utility model discloses a bar clamping mechanism of a numerically controlled lathe, which belongs to the technical field of numerically controlled lathes and comprises a clamping seat, a first through hole is arranged at the center of the clamping seat, a first cavity is arranged on one side inside the clamping seat, and the first cavity is communicated with the first through hole. And a protection fixing assembly and an auxiliary dust removal assembly are arranged in the first cavity. According to the long bar clamping and fixing device, the driving motor drives the rotating shaft, the first lead screw and the second lead screw to rotate, so that the two threaded sleeves respectively drive the flat plate, the arc-shaped block, the spring and the flexible plate to move relatively, the long bar is clamped and fixed in an auxiliary mode through the flexible plate, and the clamping and fixing effect on the long bar is further improved; and meanwhile, the arc-shaped blocks can shield the first through holes, so that sweeps are prevented from entering the numerical control lathe in the long bar machining process, and therefore the use protection performance of the device is effectively improved.

The invention relates to the technical field of metal material plastic forming, and discloses an extrusion feeding device, an extrusion forming system and a control method.The extrusion feeding device comprises a loading module and a feeding driving module, and the loading module is arranged between an extrusion driving device and an extrusion forming device; a plurality of loading parts used for loading bars are distributed on the loading module, the plurality of loading parts extend and penetrate in the first direction, the loading module is provided with a heating assembly, and the heating assembly is used for heating the bars of the plurality of loading parts; the feeding driving module is used for driving the loading module to move in the direction perpendicular to the first direction so as to control the loading module to move out of or move into the working position between the extrusion driving device and the extrusion forming device. According to the invention, the heating assembly and the plurality of loading parts are adopted, bar material supplement and temperature stabilization are completed in the extrusion stroke, the extrusion temperature of the bar material can be accurately controlled, and the controllability of extrusion process conditions is ensured.

The invention discloses a bar cutting device, relates to the technical field of machining equipment, and aims to solve the problems of low bar cutting efficiency and poor size consistency in the prior art. The device comprises a supporting frame, and an equidistant cutting mechanism, an equidistant clamping mechanism and an auxiliary assembly are arranged on the supporting frame; the equidistant cutting mechanism comprises a cutting frame, a cam shaft and a spline shaft are rotationally arranged on the cutting frame, a spacing sliding block is slidably arranged on a guide shaft, a cam shaft spiral groove drives the spacing sliding block to slide equidistantly through a driven protrusion, the spline shaft is sleeved with a spline sleeve, and the spline sleeve is connected with a saw disc. The equidistant clamping mechanism comprises a clamping frame and is linked with a distance separation sliding block through a linkage rod, so that the clamping position corresponds to the cutting position; the auxiliary assembly comprises a material supporting frame, a bar detection assembly, a limiting assembly and a material receiving plate. The device can complete multi-section equal-distance cutting of the bars at a time, is high in cutting efficiency and good in size consistency, and meets the cutting requirements of the bars of different specifications.

Provided is a masonry lintel system containing a C-channel, bar stock, angle brace, and plurality of threaded bolts. A C-beam may rest upon the threaded bolts, allowing the C-beam to be installed to span an opening in a CMU masonry wall. The lintel system may thereby be removed from the masonry wall, after C-beam installation.

The invention discloses a stirring friction additive manufacturing device with a continuous feeding function. The stirring friction additive manufacturing device comprises a stirring mechanism, a pressing mechanism, a feeding mechanism and a control system. The stirring mechanism comprises a stirring head and a discharging hole in the stirring head, a shaft shoulder is formed at the lower end of the stirring head, and the cross section of the discharging hole and the cross section of the bar are both square. The pressing mechanism comprises two charging barrels and a moving mechanism, and a switching hydraulic cylinder of the moving mechanism is used for driving the two charging barrel sets to reciprocate in the horizontal direction. A pressing piston cylinder is fixed at the top of each charging barrel; the feeding mechanism is used for feeding bars into the charging barrel, and the control system is used for controlling the movement of the moving mechanism; the invention further discloses an additive manufacturing method adopting the friction stir additive manufacturing device. The two charging barrels are alternately used, the time for a next bar to enter the discharging hole is shortened, switching of the two charging barrels can be completed within a short time under the condition that automatic control is adopted, and continuous work can be achieved.

The invention provides a rolling forming method for a complete shape follow-up streamline raceway of a tapered roller bearing, and belongs to the field of bearing preparation. According to the size of an outer ferrule of the tapered roller bearing, a blank is designed, the size of a blanked bar and the size of the blank are determined, blanking is conducted to obtain a material section, and the height-diameter ratio of the bar is controlled to be small in the blanking process; the bar is subjected to upsetting according to the upsetting ratio to obtain an intermediate material, the upsetting ratio is controlled to be small in the upsetting process of the bar, the intermediate material is subjected to extrusion forming and stamping to obtain a blank, and the blank is punched to form a ring blank; and the ring blank is rolled through the fully-closed hole pattern to achieve rolling path streamline follow-up forming to obtain a final forge piece, and the rolling ratio is controlled to be large under the condition that a core roller can be placed in the fully-closed hole pattern. The influence of the blanking process on subsequent blank making is considered, and the bar size and the blanking diameter are designed, so that the height-diameter ratio of the bar is as small as possible, and the radial flow of bearing ring metal at the stage is reduced; and in consideration of the influence of the upsetting process on subsequent rolling metal flow, a reasonable upsetting ratio is designed, so that the upsetting ratio is as small as possible, and the adverse influence of non-uniform deformation in the forging process on metal streamline distribution is reduced.

The invention discloses a GH738 alloy bar large-deformation semi-continuous efficient rolling device and technology. The requirements for the grain size and the durability are met at the same time by optimizing the heating and deformation technology in the semi-continuous rolling process. A large-deformation semi-continuous efficient rolling device and a corresponding process are adopted, wherein the large-deformation rolling is 50%-80%; heat is supplemented in the rolling process, and the blank temperature is increased; the finish rolling temperature is increased; and the rolled blank is rapidly heated by an induction coil, and hot straightening is carried out. The method disclosed by the invention has the beneficial effects that (1) the mode of large deformation and heat compensation by using a heating furnace midway is adopted, and the standard grain size requirement of grade 3-grade 6 is met; (2) the rolled blank is heated through an induction coil to be rapidly heated, hot straightening is carried out, and the roundness and the size of the bar are improved; and after standard heat treatment, a surface stress layer cannot be generated due to straightening, so that a coarse-grain ring cannot be generated.

The utility model belongs to the field of bar machining, and particularly relates to a bar feeding device which comprises a hopper and a bar conveying mechanism. The bar conveying mechanism comprises a conveying rail and a pushing mechanism, one end of the conveying rail is a pushing-in end, the other end of the conveying rail is a pushing-out end, and the output end of the pushing mechanism reciprocates from the pushing-in end to the pushing-out end and is used for pushing bars located in the conveying rail out of the pushing-out end. And a blanking groove is formed in the bottom of the hopper and is aligned with the conveying track, and the multiple bars located in the hopper fall into the conveying track one by one through the blanking groove. According to the bar feeding device, a plurality of bars to be fed only need to be stacked in the hopper in the same direction, the bars located in the hopper fall into the conveying rail one by one, then the pushing mechanism conveys the single bars located on the conveying rail to the next station one by one, and therefore feeding of the bars is completed. And the bars move under the guidance of the conveying rail and can accurately and quickly enter the next station.

The invention relates to the technical field of microbits, in particular to a continuous machining system for microbit bars and a machining method.The continuous machining system comprises a first feeding sliding way, a second feeding sliding way, a first flywheel and a second flywheel, a first discharging bin is arranged on one side of the first flywheel, and the interiors of the first discharging bin and the first flywheel are communicated; a plurality of guide telescopic rods are arranged between the first flywheel and the first discharging bin, a second discharging bin is arranged on one side of the second flywheel, the second flywheel and the second discharging bin are internally communicated, and the second flywheel is rotationally connected with the second discharging bin; the first feeding sliding way is used for conveying tungsten steel bars to the first discharging bin, the second feeding sliding way is used for conveying stainless steel bars to the second discharging bin, and discharging openings are formed in the upper end of the first discharging bin and the upper end of the second discharging bin. A first pushing mechanism is arranged on the inner side of the first discharging bin, a second pushing mechanism is arranged on the inner side of the second discharging bin, and the continuous machining function is conveniently, rapidly and efficiently achieved.

The invention belongs to the field of forging, and particularly relates to a forging method for a non-concentric step type rough mold. Comprising the following steps: 1, determining a rough pattern according to a die forging; 2, a bar is selected according to the rough pattern and processed to be made into a blank; 3, one end face of the bar or the blank is attached to one side of the V-shaped forming die through the V-shaped forming die, the side edge of the bar or the blank is attached to the other side of the V-shaped forming die, and one corner of the bar or the blank is upset; step 4, determining a molding bed according to the rough shape graph; 5, the flat end face of the blank placed on the side, not extruded, of the lower end in the step 3 is placed at the lower end of the forming die, and the blank on the side, extruded by the upper hammer anvil, of the succulent part is placed on the eccentric side of the forming die; and 6, the blank is forged in the forming tire mold, and the blank flows downwards and towards the left side and the right side under the action of the upper hammer anvil to form a rough mold.

The invention relates to the technical field of machine manufacturing, in particular to a multi-specification small bar hot forging auxiliary feeding mechanism which comprises a feeding mechanism, a heating mechanism, a pushing mechanism, a transferring mechanical arm and a forging and pressing mechanism, a tubular heating furnace is used for heating the middle section of a bar, and a first feeding clamping jaw and a second feeding clamping jaw are used for clamping the bottom of the bar. After a four-degree-of-freedom mechanical arm clamps a bar to a hexagonal chuck on one side, the bar continues to be clamped from a material receiving table to be put into a hexagonal chuck of a workbench on the other side, and a previous heated bar is taken out to be put into a storage table; the tubular heating furnace is arranged between the hexagonal chucks of the two workbenches, so that bars can conveniently enter the tubular heating furnace at intervals, and the energy utilization efficiency is improved; the bottom of a bar is clamped, pushed and forged through the first feeding clamping jaw, the second feeding clamping jaw and the rotating unit, the bar of the six-degree-of-freedom mechanical arm is received through a cylindrical groove in the rotating wheel, and connection of the bar between the different clamping jaws is achieved.

The invention discloses a centerless grinding machine bar conveying mechanism in the technical field of centerless grinding machines, and the centerless grinding machine bar conveying mechanism comprises a machining device, a discharging assembly and a fixing frame, the fixing frame is provided with a conveying groove, a guide groove, a storage box and a discharging box, and an adjustable limiting assembly and an intermittent shifting assembly are arranged in the guide groove; a discharging groove, a pushing plate, a pushing shaft and a movable overturning assembly are arranged in the conveying groove, and a discharging assembly is arranged at the discharging groove. Bars are in a single-layer tiled state in the guide groove through the adjusting type limiting assembly, and the adjusting type limiting assembly is matched with the intermittent shifting assembly to sequentially shift and transfer the bars; by arranging the discharging groove and the discharging assembly, unqualified bars are discharged out of the conveying groove in time; the material pushing plate and the material pushing shaft are driven to move by moving the overturning assembly, bars are pushed and conveyed, and the material pushing plate is driven to rotate upwards when returning so as to be staggered with the positions of the bars in the conveying groove, so that feeding of the conveying groove and returning of the material pushing plate can be carried out, and the machining efficiency is improved.

The invention discloses a manufacturing method of a GH4169 alloy turbine rear shaft forge piece and the turbine rear shaft forge piece. The method comprises the steps that the surface of a bar is polished; machining an annular material distribution belt on the side face of the bar in the circumferential direction to obtain a blank; performing primary soft sheathing on a second processing part of the blank, heating the blank, performing secondary soft sheathing on the heated blank, and performing heat preservation on the blank for a first preset duration; the first machining part of the blank subjected to heat preservation is drawn out; carrying out primary soft sheathing on the first processing part of the drawn blank, heating the blank, carrying out secondary soft sheathing on the heated blank, and carrying out heat preservation on the blank for a second preset duration; and the blank is subjected to die forging through the combined die, and the turbine rear shaft forged piece is obtained. According to the method, the first machining part of the blank is drawn out, the structure uniformity is improved, the structure grain size grade difference is reduced, the appearance of the forge piece is effectively adjusted by optimizing the design of the combined die, and therefore the usage amount of raw materials is reduced, and the production cost is reduced.

The invention discloses a cold forging forming process and die for a triangular shaft of a clutch, and the cold forging forming process comprises the following steps: S1, blanking: straightening a wire rod material, and processing the wire rod material into a bar material longer than the triangular shaft; s2, annealing is conducted; s3, carrying out first surface treatment; s4, first extrusion is conducted, specifically, a floating die with a certain out-of-tolerance range is designed for the triangular shaft according to the shape of the triangular shaft, the bar subjected to first-time surface treatment is put into the floating die, pressure is applied from the two ends so that the bar can be upset to form a hexagon, the bar can extend out of three rectangular clamping positions in the radial direction of the hexagon, and a middle forging stock is formed; s5, carrying out non-oxidation annealing; and S6, carrying out secondary surface treatment. According to the cold forging forming process and the cold forging forming die for the clutch triangular shaft, the characteristic of near-net forming of materials can be utilized, a triangular shaft part which can be matched with a small amount of machining to have very high precision is formed, the material utilization rate can reach 53.4%, the machining time can be saved by at least 50%, and the production cost and the machining efficiency are remarkably improved.

The utility model provides a bar processing machine tool, and belongs to the technical field of machine tools. The technical problem that an existing bar machining machine tool is single in function is solved. The bar processing machine tool comprises a rack and a material preparation seat, a shaft seat is fixed on the rack, a main shaft is rotationally connected to the shaft seat, the material preparation seat is located at one end of the feeding end of the main shaft, and a movable table capable of freely moving in the X-axis direction and the Y-axis direction is arranged at the position, located at the processing end of the main shaft, of the rack; the main shaft is a hollow pipe, pneumatic chucks are arranged at the two ends of the main shaft, and the centers of the two pneumatic chucks are located on the axis of the main shaft. A feeding table and a discharging gripper are arranged on the material preparation seat, and the feeding table and the discharging gripper can alternately move to the position aligned with the main shaft; a plurality of machining tools are sequentially fixed to the moving table in the Y-axis direction, a bolt feeding machine is further fixed to the moving table, and a bolt feeding machine is arranged on the side, located on the main shaft, of the rack. The automatic feeding and discharging device has the advantages that a plurality of bar machining procedures can be achieved at a time, and feeding and discharging can be achieved automatically.

A CNC automatic feeding mechanism and continuous machining device for a medical product, and a machining method. A CNC automatic feeding mechanism (10) comprises a material container (11), a material distributing apparatus (12), and a material pushing apparatus (13). The material distributing apparatus (12) conveys bars in the material container (11) to the material pushing apparatus (13) one by one, and then an ejector pin (132) pushes the bars to a machining assembly (20), thereby achieving automatic feeding of the bars. A spring (133) is provided in the material pushing apparatus (13), preventing the machining assembly from being damaged due to different lengths of the bars. In a continuous machining device (100), a machining spindle (26) performs a machining operation on the bars, and finished products after completion of machining are collected by a finished product collecting assembly (40). A material pulling assembly (30) pulls out, by a predetermined length, a bar clamped in a second rotating shaft module (25), and the machining assembly (20) continues to perform a machining operation until the machining of the whole bar is completed. In a continuous machining method for a bar, the bar does not need to be cut into blanks, increasing the utilization rate of the bar, avoiding waste of raw materials, achieving continuous machining in a single setup, improving the machining precision and the production efficiency of products, and reducing a manual operation, thus improving the production efficiency and the operation safety.

The utility model discloses a full-automatic extruding and cutting integrated device for petuntse bars. The full-automatic extruding and cutting integrated device comprises a mixing box, the two transmission rotating shafts are rotatably mounted in the mixing box, and two rotating blades are fixedly connected to the outer sides of the transmission rotating shafts and used for pushing and extruding the pug downwards; the extrusion pipe is arranged in the mixing box, an extrusion screw rod is installed in the extrusion pipe, and an extrusion die head is installed at the discharging end of the extrusion pipe; the pug cutting device has the advantages that after cutting is completed, the clamping part can accurately clamp pug, the moving part enables the clamped pug to be stacked towards the cart on one side, manual operation is reduced, and production efficiency and safety are improved; the clamping plates are obliquely arranged, the two single-shaft air cylinders drive the clamping plates on the two sides to move towards the middle, pug can be clamped and fixed from the two sides, it is guaranteed that the pug cannot fall off in the carrying process, and the carrying accuracy is guaranteed.

The invention belongs to the field of hot forging technology forming, and relates to a forging forming method for a thin-wall semi-circular hoop type structural part. According to the invention, the thin-wall semicircular hoop type structural member with guaranteed internal and external quality is forged and produced in a forming mode of bar (or plate)-blank-blank-blank-die forging, wherein the blank is realized in a mode of bending the blank by using a special moulding bed.

The invention discloses a method for processing a pressure-resistant shell of an unmanned underwater vehicle, which relates to the technical field of underwater vehicles, and is technically characterized by comprising the following steps of: firstly, respectively forging a pipe material or a bar material, a cake material and a plate material by adopting titanium alloy, customizing raw materials, machining according to preset parameters, drilling, cleaning, and matching with radiographic inspection to complete processing of a shell, an end socket and a hoop; and the seal head also needs to be marked by laser. And in the assembling stage, an O-shaped sealing ring is arranged at the connecting part of the shell and the end socket for sealing, and a bulkhead of the cabin penetrating piece is fixed and assembled by using a hoop. Then, the vacuum degree change is monitored in a vacuum pressure maintaining mode to conduct air tightness detection, after qualification, a hydrostatic pressure test is adopted, step type pressure increasing is conducted according to preset pressure, the pressure is maintained to the specified time length, whether deformation and leakage occur or not is detected, finally, pressure-resistant shell machining is completed, the structural strength and sealing performance of the pressure-resistant shell are guaranteed, and the underwater use requirement is met.

The invention belongs to the technical field of bolt cutting machining, and particularly relates to cutting equipment for bolt production, which comprises a base, a conveying roller way is arranged on one side of the upper end face of the base, a bar conveying assembly is mounted in an inner cavity of the conveying roller way and used for conveying bars according to the length of produced bolts, and a recycling through groove is formed in one side of the upper end face of the base and used for recycling the bars according to the length of the produced bolts. The problems that an existing cutting mode is basically a point-to-point vertical or transverse moving cutting mode, the cutting resistance is large, the cutting efficiency is low during cutting, a cutting blade is prone to overload damage, and the cutting efficiency is high are solved. And in addition, a notch of the bolt blank needs to be polished by independently using polishing equipment subsequently, so that the production efficiency of the bolt is greatly influenced.