70results about "Worms" patented technology

Disclosed are an active determination method and a precision machining method for a hydrodynamic oil film worm-gear pair. The method includes: establishing a precise three-dimensional digital model for a modification tooth surface of a worm-gear pair considering rough morphology; proposing a cross-scale meshing contact analysis method for the worm-gear pair; establishing a three-dimensional contact thermal elastohydrodynamic lubrication model for the worm-gear pair considering macro morphology, tooth surface roughness, and waviness of the modification tooth surface, and solving the model; with the friction coefficient, oil film thickness, oil film pressure, and friction force as objectives, determining an optimal worm-gear modification curve, worm tooth thickness distribution, pressure angle, helix angle, tooth surface roughness, and waviness for the hydrodynamic oil film based on an improved non-dominated sorting genetic algorithm and principal component analysis; and machining a worm gear tooth surface by using a double-lead variable-tooth-thickness hob.

The utility model discloses a worm ring surface finish machining machine tool which comprises an operation table, a machining table is arranged on the operation table, and a grinding mechanism is arranged on the operation table beside the machining table. A transverse groove is formed in the operation table, a lead screw is arranged in the transverse groove, the lead screw is sleeved with the machining table, and a translation motor is arranged at the side end of the operation table; a clamping mechanism is arranged on the machining table, and a worm motor used for driving a worm to rotate is arranged on the clamping mechanism. A control box is arranged on the operation table, a PLC is arranged in the control box, and the output end of the PLC is connected with the input end of the translation motor and the input end of the worm motor. According to the worm ring surface finish machining machine tool, the worm is fixed to the machining table through the movable ejector rod, in the worm machining process, the worm rotates and moves forwards at the same time, the ring surface of the worm is machined through the sharpening knife on the side face, automatic machining of the worm can be achieved, operation of workers is facilitated, and the working efficiency is improved. And the processing efficiency is improved.

The invention relates to a worm gear (10) for an auxiliary drive, in particular for a steering gear of a motor vehicle, comprising the following features: - a worm (100) with helical teeth designed as globoid teeth or globoid-like teeth, - a worm wheel (200) meshing with the worm (100), - the teeth of the worm (100) have teeth (130) in at least one of its two axial edge regions (112, 114) with a tooth height (H2) that is lower than the height (H1) of the other teeth of the worm (100). The invention further relates to a worm for such a worm gear and a manufacturing method for such a worm.

The application discloses a straight profile ring surface worm turning machining machine tool and a machining method, wherein the machine tool comprises a machine tool body, a driving assembly, a tool assembly and a control assembly; the driving assembly is arranged on the machine tool body; the tool assembly is arranged on the machine tool body and located on the side surface of the machine tool body, the tool assembly comprises a cutter head engaged with a worm blank, a plurality of turning groups are arranged on the cutter head, and the turning groups are fixed on the outer circumferential surface of the cutter head in the circumferential direction of the cutter head at equal intervals; and the control assembly is arranged on the machine tool body and electrically connected with the driving assembly and the tool assembly respectively. The machining method comprises connection and turning. The straight profile ring surface worm turning machining machine tool and the machining method are characterized in that a plurality of turning groups are arranged, the cutter head and the plurality of cutting tools form a worm gear type cutter similar to a worm gear, the cutter head is equivalent to a worm gear body, the cutting tools are equivalent to worm gear teeth, the worm gear type cutter is engaged with the worm blank to cut out worm teeth, and the machined worm is closer to a worm theoretical value.

The utility model discloses a kind of worm processing comprehensive machine tools, including bed, the upper surface both sides of bed are fixedly installed with two symmetrical distribution primary bearing seat, one number screw rod is rotatably connected between two primary bearing seats, the outer thread of one number screw rod is connected with horizontal slide, the output shaft of one number motor is fixedly connected to one end of one number screw rod, symmetrically distributed secondary bearing seat is fixedly installed in the front and back two ends of horizontal slide, two secondary bearing seats are rotatably connected with two number screw rod, two number screw rod and one number screw rod are perpendicularly arranged between each other, the outer thread of two number screw rod is connected with longitudinal slide, the output shaft of two number motor is fixedly connected to one end of two number screw rod, equipment seat is fixedly installed on the upper surface of longitudinal slide, the machine tool of the utility model whole structure is simple, floor area is small, manufacturing difficulty is low, effectively reduce the enterprise's early purchase and later use cost, with good use economy, suitable for small and micro manufacturing enterprises development use.

The precision milling cutter structure comprises two bases and supporting plates, rotating shafts are arranged at the upper ends of the sides, close to each other, of the two supporting plates, a cutter holder is movably connected between the sides, close to each other, of the rotating shafts on the two sides, a through hole is formed in the middle of the interior of the cutter holder, and the outer surface of one side of the through hole is provided with a through hole. An annular seat is fixedly connected to the surface of the tool apron, a plurality of sliding grooves are formed in the surface of the annular seat at equal intervals, a movable seat penetrating and extending to the through hole is slidably connected to the interior of each sliding groove, and a tool bit is fixedly connected to the end, close to the through hole, of each movable seat through a bolt. The connecting seats at the two ends of the tool apron are rotated on the outer surface of the rotating shaft, when the angle of the tool apron is adjusted, the threaded rod penetrates through the connecting seats in a threaded mode, the bottom end of the threaded rod abuts against the outer surface of the rotating shaft, then movement of the tool apron is limited, the angle of the tool bit is adjusted, and therefore when a blank rotates at a high speed, the tool bit is not damaged. And the milling angle can be adjusted.

Manufacturing device for the manufacture of a rotor (1, 2) of a screw compressor or a workpiece with a helical profile, wherein the rotor (1, 2) or the workpiece with a helical profile has a number of helically extending profiles in the form of groove-shaped recesses (3, 4) on its outer circumference, wherein the rotor (1, 2) or the workpiece with a helical profile has a longitudinal axis (a), wherein the rotor (1, 2) or the workpiece with a helical profile is composed of at least two sections (5, 6, 7) which are directly adjacent to each other in the direction of the longitudinal axis (a), wherein the groove-shaped recesses (3, 4) of each section (5, 6, 7) have a constant pitch (S1, S2, S3), wherein the pitch of at least two sections (5, 6, 7) differs from each other, and wherein all sections (5, 6, 7) are designed to be received on a support shaft (8). are characterized by this,that the manufacturing device has a clamping device (10) for a section (5, 6, 7) which is designed for machining one section (5, 6, 7) at a time, wherein the clamping device (10) is provided with means (9) for receiving a section (5, 6, 7) in an angular position defined relative to the clamping device (10).

To provide a gear production method capable of producing a gear with high accuracy at short time.SOLUTION: A workpiece W is rotated around a first axis line A1, and a plurality of cutting edge 24a which is annularly arranged with a second axis line A2 which is at a twisted position to the first axis line A1 as a center, is rotated around the second axis line A2, and the workpiece W and the plurality of cutting edges 24a are moved relatively at a speed synchronized with a rotation speed of the workpiece W in a direction being parallel to the first axis line A1, and a spiral tooth groove is formed on the peripheral face of the workpiece W by the plurality of cutting edges 24a. In the production method of the gear 10, in a cross section which is at a right angle to the first axis line A1, a diameter DF of a rolling circle CF where a contour line OE of the cutting edge 24a and a target contour line OG of the gear 10 contact in rolling contact, is greater than a diameter DC of a tooth depth center circle CC.SELECTED DRAWING: Figure 4

The utility model discloses an elastic tailstock structure for a worm grinding wheel gear grinding machine, which comprises a sliding plate body and a servo driving mechanism, the sliding plate body is arranged on the gear grinding machine in a sliding manner, the servo driving mechanism is used for pushing the sliding plate body to slide, and the sliding plate body is provided with a Morse taper tip which is used for contacting a gear to abut against the gear; the servo driving mechanism comprises a servo motor and a ball screw connected with the driving end of the servo motor, a nut of the ball screw is matched with an upper gland on the sliding plate body through a crimping assembly, and a first elastic assembly used for transmitting pressure of the servo driving mechanism is arranged between the upper gland and the sliding plate body; a screw rod of the ball screw is arranged in the sliding plate body in a penetrating manner; a second elastic component for balancing the overall gravity of the sliding plate body is arranged at the end part of the screw rod of the ball screw; the first elastic assembly is used for absorbing and storing pressure for pressing workpieces, rotation of the ball screw can be adjusted according to needs for the workpieces with different materials, hardness and machining requirements, so that the pressure of the spring is adjusted, and finally the pressing force is adjusted.

The present invention discloses an adjustment tool for efficiently finishing bevel gears and worm gear tooth surfaces, comprising a tool shaft and a gear shaft, one end of the gear shaft is fixedly connected to the bevel gear or worm gear to be processed, a middle section of the gear shaft is externally sleeved with a bearing support, an upper end of the bearing support is fixedly connected to a first fixing plate, the whole tool is hung on a tool disk, a centrifugal roller finishing machine barrel drives abrasive to form an abrasive flow, the tool disk speed of the finishing machine is adjusted to 0, and its height is adjusted so that all the gear teeth below the axis of the bevel gear or worm gear are immersed in the abrasive, and then the telescopic amount of the electric expander is adjusted so that the top surface of the bevel gear or worm gear teeth is parallel to the horizontal plane, at this time, the abrasive can be used to finish the tooth surface of the bottom gear teeth, and at the same time, the motor is started to make the bevel gear shaft or worm gear shaft slowly rotate around its axis, thereby achieving uniform processing of the tooth surface distributed on the circumference of the entire bevel gear or worm gear.

The milling device for worm machining comprises a workbench, clamping devices are arranged on the two sides of the upper end face of the workbench, and machining rods are clamped by clamping jaws on the two sides of each clamping device; a moving device is arranged on one side of the upper end face of the workbench, a lead screw and a supporting rod on the moving device are movably matched with an inclined shell, a containing cavity is formed in the inclined shell, a pressing mechanism is arranged on the upper portion of the containing cavity, a machining mechanism is arranged on the lower portion of the containing cavity, and a storage shell is arranged on one side face of the inclined shell. Through conversion of the conversion cutterhead, the cutters can be automatically converted to work by 90 degrees, the cutters do not need to be replaced every time, the cutters can be replaced in a centralized mode, and therefore the number of times of cutter replacement operation is reduced.

The invention discloses a worm and gear grinding tooth surface forming method and a transmission error evaluation method considering tooth direction crowned shape modification, and the method comprises the steps: firstly obtaining a grinding wheel, a gear and grinding machining parameters, and building a surface model of a gear workpiece and the grinding wheel; comprising grinding wheel axial profile modeling, grinding wheel spiral curved surface modeling, gear end surface profile modeling and gear tooth surface modeling; the maximum tooth direction drum shape modification amount is obtained, and a shape modification curve is calculated according to the shape modification requirement; loading the modification curve into a grinding wheel fixed coordinate system; the grinding wheel rotating coordinate system is converted into a gear rotating coordinate system through coordinate transformation; information of the grinding wheel rotating coordinate system is transmitted to the gear, generation operation is conducted on the surface of the gear, and the tooth surface morphology of the gear is obtained; and finally carrying out distortion calculation on the tooth surface of the gear. According to the method, the influence of tooth direction crowned shape modification can be considered when the continuous generating grinding tooth surface generation model is constructed, so that accurate calculation and control of tooth surface morphology are realized.

The invention provides an analogy simplified analysis method and device for a worm grinding wheel grinding gear and a medium, belongs to the field of grinding machining, deduces and calculates a single-time grinding material removal area of a specific tooth surface through analysis of movement and contact behaviors on a middle plane, and calculates a single-time grinding material removal area of the specific tooth surface on the basis of a material removal rate equivalent principle. The worm grinding wheel gear grinding process is equivalently simplified into plane grinding. According to the method, equivalence of movement and contact behaviors in the grinding process is considered, grinding force and thermal effect equivalent analysis is achieved based on the material removal rate equivalent principle, and obtained equivalent plane grinding process parameters directly reflect the grinding behavior, grinding force and thermal characteristics of a worm grinding wheel grinding gear; the complex worm grinding wheel gear grinding process can be subjected to equivalent simplified research on a plane grinding platform, the experiment cost is reduced, experiment result analysis is simplified, and optimization analysis of worm grinding wheel gear grinding process parameters is facilitated.

The invention relates to the field of worm machining, in particular to a spindle mechanism for an enveloping surface worm rotary milling machine, which comprises a stand column, a first sliding seat is slidably connected to the stand column, a supporting seat is rotatably connected to the first sliding seat, a second sliding seat is slidably connected to the supporting seat, and a jacking mechanism is fixed at the front end of the second sliding seat. A cutting blade is arranged on the left side of a workpiece, a clamping-rotating mechanism is fixed to the rear end of the cutting blade, a supporting block is arranged in the middle of the cutting blade, and an arc-shaped groove is formed in the supporting block. Under the conditions of large cutting output, large cutting depth and large cutting force, jumping and deformation of the workpiece are well prevented, the stability of the workpiece is guaranteed, and finally the worm machining precision is greatly improved.

The invention discloses a ball worm milling and grinding compound machine which comprises a machine body base, a first longitudinal shaft, a rotary table, a transverse shaft and a second longitudinal shaft, the rotary table is longitudinally and slidably connected with the machine body base through the first longitudinal shaft, and the second longitudinal shaft is transversely and slidably connected with the rotary table through the transverse shaft. The stable mechanism is used for enabling the ball worm to be cut to rotate stably, the tool spindle is arranged at one end of the second longitudinal shaft, a spherical tool used for cutting the ball worm is arranged at the lower end of the tool spindle, and the spherical tool is arranged above the ball worm to be cut. The stabilizing mechanism is fixed to the upper end face of the machine body base. A real arc track can be used for machining the ball worm, and the precision of the ball worm is greatly improved.

The present invention relates to an apparatus and a method for machining a worm shaft of a double enveloping worm gear composed of a double enveloping worm shaft and a worm wheel, and enables X-axis movement of the worm shaft, Y-axis and Z-axis movements of a worm machining cutter, A-axis rotation of the worm shaft, C-axis rotation of the cutter, and B-axis tilting of a saddle on which the cutter is provided, and thus can facilitate worm shaft machining.

The invention relates to a worm gear drive (10) for an auxiliary drive, in particular a steering mechanism of a motor vehicle, comprising the following features: a worm (100) having a helical toothing which is designed as a spherical toothing or an approximately spherical toothing; a worm gear (200) engaged with the worm (100) in a meshing manner; the toothing of the worm (100) has a tooth (130) in at least one of the two axial edge regions (112, 114) thereof, the tooth height (H2) of which is smaller than the tooth height (H1) of the other teeth of the worm (100). The invention further relates to a worm for such a worm gear, and to a method for producing such a worm.

The application relates to the technical field of feeding and discharging devices, in particular to a device for automatically feeding and discharging workpieces, which comprises a box body, further comprises a limiting mechanism, the limiting mechanism is provided with at least two groups and is respectively used for limiting and positioning processed workpieces and unprocessed workpieces, and the limiting mechanism is slidingly connected to the upper end of the box body; the limiting mechanism comprises a bearing table, a chuck and a clamping rod, the bearing table is slidingly connected with the box body, the chuck is rotationally connected with the bearing table, the bearing table is provided with a first guide hole, the chuck is provided with a second guide hole, the first guide hole and the second guide hole are distributed in a cross mode, the clamping rod is arranged at the intersection between the first guide hole and the second guide hole, the clamping rod is distributed in a plurality of intervals around the bearing table, the first guide hole and the second guide hole are each provided with a plurality of clamping rods in correspondence, and the chuck is connected with a driving assembly. The application has the effects of reducing the labor intensity of workers and increasing the feeding and discharging efficiency of workpieces.

The comprehensive machine tool for machining the gear and the worm comprises a machine body, and a switch mechanism is arranged on one side of the lower end in the machine body. By using the switching mechanism and the two protective covers, the comprehensive machine tool has a protective function, when the comprehensive machine tool operates, the two protective covers are controlled to be automatically closed, scrap iron generated during operation of the comprehensive machine tool is prevented from being splashed to surrounding workers, the safety of the comprehensive machine tool can be effectively improved, and the comprehensive machine tool is safe and reliable. And meanwhile, the comprehensive machine tool can be used more conveniently and intelligently.

The invention relates to the technical field of gear grinding machines, and discloses a numerical control worm grinding wheel gear grinding machine and a using method thereof.The gear grinding machine comprises a shell, a cabinet door is installed on the side face of the shell in a sliding mode, a bottom plate is fixedly installed in the shell, a lifting plate is arranged on the bottom plate, and a grinding wheel driven by a motor is arranged on the lifting plate; a cooling pipe is fixedly installed on the lifting plate, an installation clamping base used for clamping a workpiece is arranged on the bottom plate, and a plurality of sets of water falling grooves located in the side face of the installation clamping base are formed in the bottom plate. A cavity is formed below the bottom plate, and a guide plate used for receiving falling cooling liquid in the water falling groove is fixedly installed on the bottom plate. The device has the beneficial effects that after the flow speed is increased, cooling liquid flows on the rotating plate in a thin-layer state, so that scrap iron in the cooling liquid is closer to the rotating plate and is more easily adsorbed and fixed by a magnet, the removal effect of the scrap iron is improved, and the recovery efficiency of the cooling liquid is guaranteed.

The utility model discloses a helical gear speed reducer machining clamp, which relates to the technical field of speed reducer machining clamp equipment and comprises a speed reducer body, a connecting flange is arranged at the bottom of the speed reducer body, a first pressing block is movably mounted on a lead screw, and a rubber structure is arranged at the bottom of the first pressing block. A limiting frame is arranged at the top of the workbench, and the air guide pipe and the clamping block are located in the limiting frame. The motor drives the lead screw to rotate, gas is extruded into the gas storage block, so that the movable block and the movable rod are extruded, the clamping block can quickly stretch out, then the outer side of the connecting flange is extruded, and the effect of clamping and fixing the speed reducer body is achieved; and the lead screw is driven by the motor to rotate reversely, so that the first pressing block moves downwards until the top of the connecting flange is extruded, and the practicability and flexibility of the whole helical gear speed reducer machining clamp are improved.

The present invention relates to an apparatus and a method for machining a worm shaft of a double enveloping worm gear composed of a double enveloping worm shaft and a worm wheel, and enables X-axis movement of the worm shaft, Y-axis and Z-axis movements of a worm machining cutter, A-axis rotation of the worm shaft, C-axis rotation of the cutter, and B-axis tilting of a saddle on which the cutter is provided, and thus can facilitate worm shaft machining.

According to the worm tooth surface machining and compensating method, the worm tooth surface comprises a meshing-in section tooth surface, a meshing section tooth surface, a transition section tooth surface and a non-meshing section tooth surface which are sequentially and continuously arranged, a meshing-in grinding stage is used for grinding the meshing section tooth surface, a meshing grinding stage is used for grinding the meshing section tooth surface, the transition section tooth surface is used for grinding the transition section tooth surface, and the non-meshing section tooth surface is used for grinding the non-meshing section tooth surface. The non-meshing grinding stage is used for grinding the tooth surface of the non-meshing section, errors caused by abrasion of the grinding head and manufacturing of the worm gear are compensated in all the grinding stages, and therefore the manufacturing precision of the tooth surface of the worm and the meshing precision of the worm gear and the worm are improved.

The invention discloses an offset worm face gear for a speed reducer and a machining method, and relates to a high-speed precise gear transmission device, in particular to the technical field of gear machining. Worm machining equipment and end face gear machining equipment are adopted for machining, and the end face gear machining equipment comprises a forming unit used for machining an end face gear and a storage unit used for positioning and storing the end face gear before and after forming. The forming unit comprises a supporting mechanism, a first positioning mechanism and a forming mechanism; the first positioning mechanism and the forming mechanism are arranged at the two ends of the supporting mechanism correspondingly, the material storage unit comprises a driving mechanism and a second positioning mechanism, the second positioning mechanism is installed on the driving mechanism, and the driving mechanism drives the second positioning mechanism to achieve positioning and position adjustment of the end face gear before and after forming; the cooperation of the worm and the end face gear can meet the requirement for the high transmission ratio of the staggered shaft of the speed reducer, efficient machining of the end face gear is facilitated, and the machining cost is reduced while the efficiency is improved.

The application discloses a worm and gear grinding device, and relates to the technical field of worm and gear grinding devices, which comprises a chassis, a rack assembly, a lifting assembly, a positioning assembly and a grinding force control assembly. The rack assembly is installed on the chassis, the lifting assembly and the positioning assembly are both installed on the rack assembly, the lifting assembly is used for driving the worm to lift relative to the worm gear, the positioning assembly is used for positioning the worm gear, the worm gear is engaged with the worm, the worm can rotate, the grinding force control assembly is installed on the positioning assembly, and the grinding force control assembly is used for controlling the size of the grinding force between the worm gear and the worm. The application can control and stabilize the grinding force, and realizes efficient and precise grinding of the worm and gear.

The invention discloses an axial double-arc tooth spiroid worm pair and a manufacturing method, and belongs to the technical field of gear transmission, and the manufacturing method comprises the following steps: S1, adopting a double-arc edge forming tool, and machining to form a spiroid worm helical surface with two sections of tangent arc tooth profiles under a preset fixed connection coordinate system through composite relative motion of the tool and a spiroid worm blank; s2, a conical hob which is in conjugate matching with the helical surface of the spiroid worm is adopted to perform multi-motion collaborative hobbing machining on the blank of the spiroid worm gear, and a double-arc tooth surface is generated; and S3, the double-arc tooth bevel worm and the double-arc bevel worm gear are assembled, and the axial double-arc tooth bevel worm pair in meshing transmission is formed. The double-arc tooth profile design is adopted, and the special double-arc blade forming tool is used for machining, so that the thread meshing length of the spiroid worm accounts for more than 95% of the total length, and the meshing contact ratio is improved; the coverage rate of the tooth surface contact area of the bevel worm gear reaches 90% or above, instantaneous contact lines are evenly distributed and are not crossed, the tooth surface contact stress is reduced, and the transmission stability and the heavy load bearing capacity are improved.

A manufacturing method of a gear includes: rotating a rod-shaped workpiece around a first axis; rotating a tool having a cutting edge around a second axis at a twisted position with respect to the first axis. In a plane perpendicular to the first axis, the workpiece is rotated around the first axis and the workpiece and the tool are relatively moved in the direction parallel to the first axis at the speed synchronized with the rotation speed of the workpiece such that a contour line of the cutting edge of the tool is in rolling contact with a target contour line, which is a contour line of the spiral tooth groove to be formed, at a predetermined point of the target contour line or an extension line of the target contour line without slipping, and rotates while sliding with respect to the target contour line.

This invention discloses a simple auxiliary tool for testing worm gears on a conventional lathe. It includes a movable seat, a fixed seat, and a fixed shaft. The fixed seat is fixedly mounted on the tool holder of the conventional lathe. One end of the movable seat is movably mounted on the fixed seat and can be secured by a tension bolt. The other end of the movable seat is fixedly mounted on the fixed shaft, and the worm gear is sleeved on the fixed shaft via a bearing. The movable seat is engraved with a scale indicating the rotation angle, and the fixed seat has an indicator mark at the corresponding scale position. The worm gear is mounted on the lathe's main axis, ensuring free rotation. The worm gear is mounted on the simple auxiliary tool, allowing free rotation. The simple auxiliary tool allows for fine-tuning of the angle and height to ensure the correct installation position of the worm gear and worm and the visibility of the fine-tuning angle. This invention has a simple structure, good manufacturability, and convenient operation, and has certain practical value.

The invention discloses a worm and gear grinding tooth surface forming method and a transmission error evaluation method considering multi-head grinding wheel base pitch errors, and the method comprises the steps: firstly obtaining parameters such as a gear, a grinding wheel, machining and multi-head grinding wheel base pitch errors, defining the base pitch errors, building a grinding wheel surface model considering the errors, and building a standard involute gear model; then the grinding wheel rotating coordinate system is sequentially converted into a gear rotating coordinate system through coordinate transformation, tooth surface generation operation is conducted, and the tooth surface morphology is obtained; and finally, carrying out fast Fourier transform analysis on the tooth surface ripples, extracting tooth surface features and evaluating the ghost frequency noise risk. According to the method, the influence of the base pitch error of the multi-head grinding wheel can be accurately considered in the tooth surface generation process, tooth surface morphology prediction and howling risk analysis are achieved, and high universality and engineering application value are achieved.

The invention discloses a method for machining a special modulus worm based on transformation of the transmission ratio of a general lathe, and provides an innovative scheme for achieving modulus adaptation by adjusting a change gear box gear combination aiming at the technical problem that a non-integer modulus worm cannot be machined by the general lathe in the last century 70. The core of the method is that the method further expands the machining range of the lathe to the modulus interval of 5.5-7.5, the method is suitable for transformation of C620, C630 and C640 series equipment, special equipment does not need to be purchased, and the transformation cost of a single machine is lower than 200 yuan (according to the price of 1970). The embodiment shows that the transformed lathe can support multi-modulus machining (such as switching between 6.5 modulus and 4.5 modulus) at the same time, and a low-cost solution of'hardware multiplexing + parameter reconstruction 'is provided for regeneration of old equipment. The technology breaks through the manufacturing bottleneck of industrial self-defense equipment in a special period, and forms an equipment transformation methodology system.