69results about How to "Easy chip removal" patented technology

The invention provides a spiral fluted tap which is provided with a thick handle part, a neck part and a thick-head thread part which are coaxially arranged, the helical angle beta of the thread part is greater than 40 degrees; the groove profile of the thread part is of a three-groove structure and is in a straight-line three-arc form; the screw tap is made of a high-speed steel material subjected to vacuum heat treatment and subzero treatment and is subjected to passivation treatment. The technical problems that a spiral fluted tap is unsmooth in chip rolling and discharging, short in service life, prone to being broken, unstable in performance and low in working efficiency are solved. The cutter is beneficial to numerical control multi-line grinding machining, sharp in cutting, beneficial to tight chip rolling, long in service life, high in machining stability and high in efficiency.

The utility model provides an anti-slip diamond brazing bead string and a wire saw, which comprise a bead string base body and an abrasive particle layer fixed on the outer surface of the bead string base body, and are characterized in that the outer surface of the bead string base body is provided with a spiral groove along the circumferential direction; the abrasive particle layer is arranged in the spiral groove and comprises brazing filler metal and diamond, and the diamond is connected into the spiral groove through the brazing filler metal; by the adoption of the technical scheme, the situation that the brazing material forms a liquid state in the brazing process and then drives the diamonds to slide is prevented, the diamonds are evenly distributed in the spiral groove, the diamond utilization rate in the grinding process is increased, and then the grinding efficiency is improved; and the spiral grooves are beneficial to chip removal during grinding of the diamond brazing bead string, and the situation that cuttings adhere to the surface of the diamond, and the grinding capacity is affected is prevented.

The utility model relates to a mould processing chip cleaning mechanism, which comprises a support table, a support seat, a polishing table, a mounting plate, a top plate and a polishing device, the top of the support table is provided with a cleaning mechanism, and the cleaning mechanism comprises two side baffles which are fixedly mounted on the outer wall of the top of the support table; a first baffle is fixedly installed on the outer walls of the opposite sides of the two side baffles, and a second baffle is fixedly installed on the outer walls of the opposite sides of the two side baffles. According to the chip cleaning mechanism for mold machining, waste chips generated during machining and grinding of a mold can be shielded through a side baffle, a first baffle, a second baffle, a front baffle, a mounting plate and a top plate, so that the waste chips cannot be splashed everywhere, and the waste chips on a grinding table can be conveniently pushed to the left side and the right side to be cleaned under the action of an electric telescopic rod and a cleaning push plate; and the waste chips are pushed into the waste chip collecting box, so that the waste chips are cleaned, and meanwhile, the waste chips are conveniently collected.

The utility model discloses a flexible grinding and polishing diamond abrasive belt wheel which comprises a structure supporting body assembly, a first diamond abrasive belt piece, a locking screw, a locking pressing plate, a cutter bar, a second wheel disc and a third wheel disc, the first diamond abrasive belt piece is arranged on the outer surface of the structure supporting body assembly, and the locking screw is arranged at one end of the structure supporting body assembly. According to the flexible grinding and polishing diamond abrasive belt wheel, the diamond abrasive belt piece prefabricated body is of a sectioning structure, so that heat dissipation, cooling and chip removal of the grinding and polishing surface are facilitated, complete attachment, local attachment or clearance fit can be achieved by arranging the three sets of abrasive belt pieces in different shapes and pressing after bending or direct punching forming, the wheel disc is of a rubber coating wheel structure, and the abrasive belt pieces are not prone to deformation. According to the diamond abrasive belt wheel, the contact area with the surface of a part to be machined is increased, then the grinding and polishing machining efficiency is improved, the abrasive belt wheel supporting body is easy to replace after being abraded through threaded connection, the abrasive belt wheel supporting body can be repeatedly used, and the diamond abrasive belt wheel can also be used for grinding and polishing machining of blades or blade bodies or other characteristic faces of the blades.

The invention discloses mulberry leaf fungus tea mixed fermentation processing equipment and method, and relates to the technical field of mixed fermentation, and the mulberry leaf fungus tea mixed fermentation processing equipment comprises a composite mechanism. According to the mixed fermentation processing equipment and method for the mulberry leaf fungus tea, through the design of a composite mechanism, a top cover plate is controlled to be lifted through a first electric push rod, materials are conveniently placed into a composite shell, a pipeline is arranged at the top of the top cover plate, and liquid enters the composite shell from the pipeline; the central rotating shaft is controlled by the motor to drive the stirring mechanism to rotate, materials are stirred to rotate in liquid, so that the effect of cleaning the materials is achieved, impurities or medicine residue residues on the surfaces of the materials are avoided, and the product quality safety is improved; meanwhile, the materials are driven to rotate to be in frictional contact with the crushing mechanism, so that the effect of chopping the materials is achieved, the materials are cut into uniform small blocks, the fermentation uniformity and efficiency are improved, and material exchange in the fermentation process is facilitated.

The utility model relates to lathe technical field provides a good micro - numerical control lathe of chip removal, solve the problem that lathe horizontal work surface falls the chip not easy clearance and the chip falls into the guide rail and influences the problem of tool rest feed. Scheme, the work surface of bed body is inclined surface, the lathe still includes: X axle assembly, include: a) X axle bottom plate, set up on the work surface of bed body, have X axle guide rail on it, b) workbench, slide connection in X axle guide rail, its upper portion is fixed with tool rest, c) first linear drive assembly, drive workbench and move along X axle direction, d) X axle protection assembly, install in workbench X axle direction both ends, protect X axle guide rail, Z axle assembly, include: a) Z axle guide rail, set up in the work surface of bed body, X axle bottom plate bottom slide connection in Z axle guide rail, b) second linear drive assembly, drive X axle bottom plate and move along Z axle direction, c) Z axle protection assembly, install in X axle bottom plate Z axle direction both ends, be used for protecting Z axle guide rail.

The utility model discloses a swing type cutting tool table which comprises a frame body and a sliding piece arranged on the side portion of the frame body. The at least two groups of driving parts are arranged on the two sides of the frame body respectively; the cutting knife table is connected with the driving piece and comprises a frame body part connected with the driving piece and a cutting part connected with the frame body part; the driving pieces on the two sides of the frame body drive the frame body part to form a preset gradient or height difference, so that the cutting part swings to complete cutting, and the two sets of driving pieces drive the frame body part to conduct swinging cutting. The driving part is designed to drive the frame body part to form the preset inclination, so that the cutting part swings, the swinging cutting work of materials is completed, the cutting line swings due to the swinging cutting mode, part of waste chips can be brought out during cutting, chip removal is facilitated, and the cutting efficiency is improved.

The present invention relates to the technical field of steel pipe inner circle grinding, and in particular to a steel pipe inner circle grinding machine, comprising a device frame, a base frame is arranged on the outer side of the device frame, a support plate is installed on the top surface of the base frame, a rotating roller is connected between the support plate and the device frame, a base is connected on the outer side of the rotating roller, a steel pipe body is placed on the base, a clamping piece is movably connected to the outer side of the steel pipe body, a movable table is installed on one side of the base, an adjusting member is movably connected inside the movable table, a gear is connected to the adjusting member, and a side wall plate is also arranged on one side of the device frame. This scheme reduces the possibility of reduced grinding efficiency due to the influence of debris in the steel pipe during long-term grinding, reduces the possibility of the position of the steel pipe being offset during grinding, increases the possibility of the device being able to clean chips during grinding, and performs secondary cleaning after grinding is completed, and also improves the fixing effect of the steel pipe, avoiding position offset while rotating.

This utility model discloses a laser cutting and engraving stage, belonging to the field of laser cutting technology. The laser cutting and engraving stage includes a frame and multiple sets of elongated support plates. Each support plate has a first working surface and a second working surface. The frame has a working area, and multiple equidistant limiting grooves are formed on the inner walls of both sides of the working area. The two ends of the support plates extend into the limiting grooves. When the first working surface is horizontal, the support plate is in a first working state; when the second working surface is horizontal, the support plate is in a second working state. This utility model, by creating limiting grooves within the frame and extending the two ends of the support plates into these grooves, and by having both a first and a second working surface, allows for switching between honeycomb and blade-type stages through the switching between the first and second working surfaces. This eliminates the need for additional stage types, reduces operating costs, minimizes space occupation, and improves performance.

The invention belongs to the technical field of chalcogenide glass processing, and discloses a cutting fluid for processing a chalcogenide glass aspheric lens with the diameter larger than 100 mm and application of the cutting fluid, the cutting fluid for processing the chalcogenide glass aspheric lens with the diameter larger than 100 mm comprises isoparaffin and isopropyl palmitate, and the mass ratio of the isoparaffin to the isopropyl palmitate is (1-3): (4-5). The isoparaffin and the isopropyl palmitate are compounded, the lubricating effect of the cutting fluid can be effectively improved, so that a machining tool and a machining workpiece are protected, the cutting fluid has the effect of promoting chip removal in the machining process, and the situation that the machining quality is reduced due to too many chips on the machining workpiece is avoided.

The utility model discloses a large-capacity high-rigidity flat lathe bed capable of easily removing chips, relates to the technical field of lathe machining, and aims to solve the problems that a chip removal groove of an existing flat lathe bed is small in slotting size in order to guarantee the rigidity of the lathe bed, so that the chip removal efficiency is not high, and an existing lathe bed structure is generally suitable for side chip removal and is inconvenient to cooperate with a robot or a manipulator for operation. According to the machine tool body, the design of chip removal after connection of the machine tool legs and the machine tool body is adopted, automatic operation is facilitated, and the machine tool body comprises a material falling groove and an inclined material guiding plate, and the material falling groove is formed in the middle of the interior of a flat machine tool body main body; the inclined material guide plates are arranged on the two sides of the bed head and the bed tail of the material falling groove, the central material falling square cage is installed in the middle of the interior of the material falling groove, three downward-inclined inner ring plates are arranged on the inner wall of the central material falling square cage, and the three downward-inclined inner ring plates are distributed at equal intervals.

The utility model relates to the technical field of tire repair, in particular to a tool for repairing a tire from outside to inside, which comprises a polishing device provided with a shaft lever and a polishing arm connected to one side of the top end of the shaft lever, and the bottom of the polishing arm is provided with a polishing surface; a vertical rubber rod is arranged in the center of the bottom of the umbrella-shaped patch, a pipeline is coaxially arranged in the rubber rod, a plurality of radial veins are arranged on the top of the umbrella-shaped patch, the veins are communicated with the top end of the pipeline, and a plurality of through holes communicated with the veins are densely distributed in the bottom of the umbrella-shaped patch. When the tool is used for repairing the tire, the tire does not need to be taken down from the hub, so that the work of dismounting, pulling and mounting the tire is omitted, and the tire repairing efficiency is improved.

The utility model discloses an asymmetric hard alloy drill piece, which relates to the technical field of cutting tools and comprises a drill piece body, a first cutting edge, a second cutting edge, a fourth cutting edge and a fifth cutting edge are respectively arranged on two sides of the drill piece body, and the first cutting edge, the second cutting edge, the fourth cutting edge and the fifth cutting edge are of asymmetric structures. An inclined third cutting edge is arranged between the second cutting edge and the fourth cutting edge, a horizontal welding face is arranged at the lower end of the drilling piece body, the drilling piece body is designed to be of an asymmetric structure, through research and design of the mechanics principle, when the alloy drilling piece conducts drilling operation, a unique cutting track is formed, and the drilling efficiency is improved; and during drilling operation, due to the asymmetrical design, a crossed and transformed drilling center is generated, compared with a traditional symmetrical drilling piece, accurate positioning and rapid hole entering on a brittle and hard ceramic tile or glass are more facilitated compared with one-point self-centering of the traditional symmetrical drilling piece, the punching efficiency is high, and the punching quality is good.

The utility model discloses a kind of concave composite chamfering cutter, belong to machining tool design technical field, the composite chamfering cutter includes two center symmetrical cutter teeth, cutter tooth is composed of back rake face, oblique front and cylindrical arc surface, wherein: the included angle range of back rake face and vertical face is 35 ° to 50 °, the included angle range of oblique front and vertical face is 8 ° to 15 °, cylindrical arc surface is the extension of cylindrical cutter body, the top end of cutter tooth is also provided with tooth end face, the included angle range of tooth end face and horizontal plane is 3 ° to 8 °. Compared with prior art, the composite chamfering cutter carries out mirror image processing to the two blades of tool, and designs specific cutter tooth angle, and the oblique front of specific angle can effectively increase the strength of tool, facilitate chip removal, and the back rake face of specific degree can reduce the wear of cutting edge while reducing vibration;The stability and service life of tool are improved, and the overall tool can effectively reduce the vibration interference in the machining process during the machining process, to ensure the stability and consistency of machining quality.

The mechanical part machining workbench comprises a supporting frame, the top of the supporting frame enables the workbench to rotate through an adjusting assembly, the top of the workbench is provided with a chip removing mechanism, the chip removing mechanism is used for achieving cleaning operation of waste chips on the top of the workbench, and the chip removing mechanism comprises a chip removing assembly and a chip removing mechanism, comprising a sliding plate installed on the front side of the top of a workbench, a sliding groove is formed in the front side of the sliding plate, and a plurality of sets of small round rods are fixedly connected to the front side of the sliding plate. According to the mechanical part machining workbench facilitating scrap removal, under the driving of the driving motor, the scraping plate slides on the top of the workbench from left to right, so that all residual mechanical part waste materials on the top of the workbench slide down from the right side, scrap removal operation on the top of the workbench is achieved, and subsequent machining operation of mechanical parts is facilitated.

The invention provides an electric arc-mechanical composite cutting machining system and method. The electric arc-mechanical composite cutting machining system comprises a water tank, a main shaft, an electric brush, a chuck, a disc saw, a graphite disc, a workbench and a controller. The rotary joint is rotatably connected to the main shaft, the main shaft is driven by the motor to rotate, the chuck is mounted at the bottom end of the main shaft, the adapter tube is mounted at the bottom end of the chuck, the rotary cutter consisting of the disc saw and the graphite disc is mounted on the adapter tube, the workbench is arranged in a space below the rotary cutter, and a workpiece is mounted in a water tank on the workbench. According to the electric arc cutting process, materials can be efficiently corroded on the premise that no remarkable contact stress exists; an electric arc-mechanical composite cutting technology is achieved through a rotary cutter, a part of base material is softened while materials are removed through electric arc large allowance, and the completeness of a cutting seam is improved by combining with auxiliary cutting of a rotary saw; inner and outer combined flushing liquid is adopted for machining, the inner flushing liquid can directly flush a machining area to enhance chip removal and cooling efficiency, the bad discharge rate is reduced, and high efficiency and practicability are achieved.

The utility model discloses a double main shaft three knife tower numerical control machine tool, including the machine base that is equipped with three parallel X axle guide rail. Two independent control's knife tower mechanism is equipped on first X axle guide rail, can cooperate or independent operation, the coaxial opposite arrangement of first main shaft mechanism and movable second main shaft mechanism is equipped on second X axle guide rail, realizes workpiece automatic butt joint and shift, third X axle guide rail is equipped with third knife tower mechanism. The machine tool passes through the innovative layout of three knife towers and double main shaft, supports multiple high -efficient processing mode: two knife towers can synchronize and process one end of a workpiece, and third knife tower processes the other end or another workpiece, also can realize workpiece automatic shift to another main shaft after one end processing, and is continued processing the other end by any one or two knife towers. Therefore, on one hand can greatly improve production efficiency and equipment utilization, on the other hand eliminates the manual turn -around clamping link, positioning error and downtime are reduced significantly, is suitable for the high -speed precision machining of complex parts.

The utility model discloses an end mill for processing a flange channel, which belongs to the technical field of cutter design, the end mill is symmetrically provided with four cutting edges, the angle range of the front angle of each cutting edge is 6-8 degrees, two rear angles are continuously arranged on the side edge of each cutting edge, and the two rear angles are respectively a first rear angle and a second rear angle. The angle range of the first rear angle is 8-10 degrees, the angle range of the second rear angle is 18-23 degrees, a tool nose protection angle is arranged at a tool nose of the cutting edge, the core diameter range of the cutting edge is 5-7 cm, and the angle range of the helical angle of the cutting edge is 37-39 degrees. Compared with a standard end mill, according to the structure, the four edges are subjected to equal grinding, the front angles are increased so as to facilitate chip removal, the core diameter of the cutter is increased, the torque resistance of the cutter is improved, the side edges are changed into two rear angles from an original single rear angle so as to improve the stability of the cutter, and the service life of the cutter is prolonged. In addition, rough machining and finish machining of the end mill can be completed at a time, and the cutter does not need to be replaced.

The invention relates to the technical field of ceramic matrix composite part machining, in particular to a ceramic matrix composite flow guide plate machining method which comprises the steps that a part blank of a fan-shaped section structure is machined, a central positioning hole, a fan-shaped section bevel edge, an inner arc edge and an outer arc edge are roughly machined through long-pulse laser, and then the fan-shaped section bevel edge, the inner arc edge and the outer arc edge are machined; performing finish machining on the outer molded surface, the bevel edge of the fan-shaped section, the inner arc edge, the outer arc edge, the inner molded surface and the central positioning hole by adopting ultrasonic vibration auxiliary milling equipment, and finally performing laser machining on the air film hole; and the whole ring blank is machined, ultrasonic vibration auxiliary milling equipment is firstly adopted for machining, then laser machining is conducted on the air film hole, then long-pulse laser is adopted for cutting the whole ring blank into a part blank, and finally the ultrasonic vibration auxiliary milling equipment is adopted for conducting finish machining on the part blank. According to the method, long pulse laser cutting and ultrasonic vibration auxiliary milling machining are combined, and the air film holes are machined through laser, so that the machining stability, efficiency, reliability and quality of the ceramic-based composite material flow guide plate can be improved.

This invention relates to the field of coating technology, and discloses a composite CVD coating, its preparation method, and its application. The coating comprises, from the inside out, a base layer, a first spacer layer, a first composite layer, and a second composite layer, arranged sequentially on the surface of a substrate. The first composite layer consists of a transition layer and a second spacer layer; the second composite layer consists of a third spacer layer and a surface layer; both the base layer and the surface layer are TiN; the first, second, and third spacers are MT-TiCN, κ-Al₂O₃, and TiC, respectively; the transition layer includes HT-TiCN and TiCO. The coating provided by this invention has good adhesion, strong resistance to crack propagation, and excellent overall coating quality; simultaneously, the coating particles are fine, and the surface roughness is low, which is more conducive to chip removal during processing.

The invention provides a nut tap, and relates to the technical field of taps, the nut tap comprises a handle part, a calibration part, a cutting part and a chip groove, the cutting part comprises a plurality of blade parts, the blade parts comprise wide blades and narrow blades with different widths, the chip groove is arranged between the adjacent blade parts, the wide blades and the narrow blades comprise a plurality of cutting teeth, the cutting teeth are provided with cutting blades, and the cutting teeth are provided with cutting teeth. At least part of the cutting teeth are provided with supporting edges, and the diameter of each supporting edge is smaller than or equal to the diameter of the cutting edge on the same cutting tooth. Through the arrangement of the wide blade, in the cutting process, the wide blade can play a good supporting role, the cutting stability and balance force of the nut tap are improved, the precision of a threaded hole is improved under the condition that the rigidity condition of the nut tap is poor, the abrasion uniformity of the nut tap is improved, and the coping frequency is increased; the cutting stability and the balance force of the nut tap are further improved, and the service life of the nut tap is prolonged.

The utility model provides a PCD (Poly Crystal Diamond) anti-vibration precise threading tool blade, which is characterized in that the tool nose angle is 60 degrees, the rear angle of the right edge is 1 degree, and the rear angle of the left edge is 6 degrees. According to the utility model, the polycrystalline diamond PCD material is adopted, the friction ratio is extremely low, the temperature resistance is higher, the durability is high, the physical wear resistance, the chemical wear resistance, the crescent wear resistance, the mechanical wear resistance and the cold welding wear resistance are higher, and the like. The angle of the tool nose is 60 degrees, the relief angle of the right blade is 1 degree, and the relief angle of the left blade is 6 degrees, so that the cutting rigidity of the blade can be ensured, the cutting force is better, the cutting resistance is lower, the strength is smaller, the resonance can be prevented, and the cutter has good impact resistance and cutting sharpness. And meanwhile, the PCD blade can be stably fed for cutting, a high-precision cutting surface with a controllable hole pattern of an aluminum alloy workpiece to be machined can be ensured, and the tool durability is quite good.

The present invention belongs to the field of aviation precision manufacturing and processing technology, and in particular, it relates to a CNC milling method for deep through grooves of annular hollow thin-walled parts, including horizontally clamping the parts on a CNC machine tool workbench; selecting a U drill with a radius equal to the corner R of the deep through groove and installing it on the CNC machine, and using the U drill to process all the corners R in place; using an indexable milling cutter to rough mill the part groove, and reserving the side wall support margin and the groove bottom support margin; using an end mill I to perform layered processing on the part groove to mill the side wall support margin of the part groove; and an end mill II to mill the groove bottom support margin from the outside of the groove bottom of the part groove until the deep through groove is formed. This technical solution uses a layered processing method to ensure sufficient margin support during the processing of the side wall of the deep through groove, effectively overcomes the influence of stress changes and cutting forces in the part, improves the surface quality of the part, and plays an important role in reducing the subsequent benchwork and grinding workload.

The utility model discloses a double-arc core diameter milling cutter and relates to the technical field of milling machining, the double-arc core diameter milling cutter comprises a handle part and a cutting part, one end of the cutting part is connected with the handle part, the diameter of the cutting part is D, the cutting part comprises a plurality of cutting edges, chip grooves are formed in every two adjacent cutting edges, the core diameter of each chip groove is 0.5 * D, and the diameter of each chip groove is D; the groove bottom of the chip groove comprises a first arc surface and a second arc surface, one end of the first arc surface is connected with one end of the second arc surface and is far away from the handle part, and the core radius of the first arc surface is larger than that of the second arc surface. According to the invention, cutter breakage caused by chip blockage due to overlarge cutting allowance can be reduced, and the cutting strength and rigidity of the cutter are improved.

The present invention discloses an extrusion tap that is convenient for chip removal, and relates to the technical field of extrusion taps. The extrusion tap that is convenient for chip removal comprises a handle, a working part and a chip groove arranged on the body of the extrusion tap, the side wall fixing sleeve of the handle is provided with a fixing ring, and the side wall of the fixing ring is provided with an annular groove, an annular plate is rotatably connected in the annular groove, and the bottom of the annular plate is connected with a hollow annular cover through a telescopic mechanism, a telescopic cover is fixedly connected between the annular cover and the annular plate, and the inner side wall of the annular cover is provided with a plurality of first circular holes arranged in an array. The extrusion tap that is convenient for chip removal can make air flow from bottom to top when tapping a through hole or a blind hole, thereby driving the chips to be discharged upward, so as to facilitate chip removal, and at the same time, facilitate the collection of chips, and after the tapping is completed, the chips remaining on the surface of the working part can be cleaned by blowing, and the cleaning is more convenient and quick, and the effect of subsequent tapping is guaranteed.

The invention discloses a multi-cutting-edge tooth-shaped cutter and a manufacturing method, the multi-cutting-edge tooth-shaped cutter comprises a cutter head and a cutter handle, a plurality of cutter teeth evenly distributed in the circumferential direction are arranged on the first face of the cutter head, a chip groove is formed between every two adjacent cutter teeth, the second face of the cutter head is fixedly connected with the cutter handle, cutting edges are arranged on the cutter teeth, and the cutting edges are arranged on the first face of the cutter head. The cross section of the cutter teeth and the cross section of the cutting edge are both trapezoidal, the wide ends of the cutter teeth are connected with the cutter head, the narrow ends of the cutter teeth are connected with the cutting edge, the wide ends of the cutting edge are connected with the corresponding cutter teeth, the narrow ends of the cutting edge are used for cutting workpieces, and steps are formed between the first side of the cutting edge and the cutter teeth. The second side of the cutting edge coincides with the corresponding side of the cutter teeth. On the premise that the sharpness of the cutting edge is guaranteed, the structural strength of the cutting edge and the cutter teeth is guaranteed, the service life of the cutter is prolonged, and the possibility that the surface of a workpiece collapses and the cutter collapses is reduced.

The invention discloses a V-shaped tool turret tail jacking machine, and relates to the technical field of horizontal lathes. The machine tool comprises a machine tool body, a first high-low rail, a second high-low rail, a tail jacking assembly, a tool turret assembly and a main shaft assembly. Wherein the middle part of the lathe bed is downwards provided with a chip removal area; the first high-low rail is arranged on the side, located on the chip removal area, of the upper surface of the lathe bed, and the low position of the first high-low rail faces the chip removal area. The second high-low rail is arranged on the other side, located on the chip removal area, of the upper surface of the lathe bed, and the low position of the second high-low rail faces the chip removal area. The tail jacking assembly is assembled on the first high-low rail in a sliding mode. The tool turret assembly is assembled on the second high-low rail in a sliding mode, and a V shape is formed between the tail jacking assembly and the tool turret assembly. The main shaft assembly is arranged on the upper surface of the lathe bed and located on the same side as the first high-low rail, and the main shaft assembly and the tail jacking assembly are coaxially arranged. By the adoption of the technical scheme, the machine tool has the advantages that the width size of the machine tool body is not increased, and chip removal is facilitated.

The utility model relates to a hot isostatic pressing machine lower plug maintenance trolley, belongs to the technical field of hot isostatic pressing equipment, and solves the problems of inconvenience in maintenance, low efficiency and poor safety of an existing hot isostatic pressing lower plug in the prior art. The trolley comprises a linear guide rail, idler wheels, a trolley body and a guardrail, the linear guide rail is located under a lower plug, the idler wheels are arranged at the bottom of the trolley body and can roll along the linear guide rail, and the guardrail is arranged at the top of the trolley body; the linear guide rail comprises a rectangular guide rail and a V-shaped guide rail, the rectangular guide rail and the V-shaped guide rail are arranged in parallel, the rollers comprise a cylindrical roller and a V-shaped roller, the cylindrical roller rolls along the rectangular guide rail, and the V-shaped roller rolls along the V-shaped guide rail. According to the lower plug maintenance trolley, the cylindrical idler wheels and the V-shaped idler wheels roll along the rectangular guide rail and the V-shaped guide rail which are arranged under the lower plug respectively, the lower plug and other components can be moved out, maintenance and replacement of the components are facilitated, operation efficiency is improved, the trolley body and the guardrails provide a safe and convenient working platform, and the maintenance cost is reduced. And the safety of personnel in the operation process is ensured.

The utility model discloses a double main shaft double knife tower numerical control machine tool, including frame, first processing device and second processing device. Frame is equipped with two parallel X axle guide rails. First processing device includes the first main shaft mechanism fixed in first X axle guide rail one end and sets up first knife tower mechanism on it, and first knife tower mechanism can move along X, Y axle. Second processing device includes setting up second knife tower mechanism on second X axle guide rail and second main shaft mechanism can move along X axle, and second main shaft mechanism is coaxial with first main shaft mechanism and sets up. Through coaxial double main shaft design has realized workpiece automatic transfer and seamless butt joint between two main shafts, and can complete workpiece double -end continuous processing without manual intervention, through the independent or synchronous processing capacity of double knife tower, can process different workpiece respectively to improve equipment utilization rate, can also process the two ends of the same workpiece in cooperation to shorten single piece processing time greatly, has improved production efficiency and automation level obviously.