29results about "Worms" patented technology

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.

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 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 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 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 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 provides a machining method for obtaining uniform surface machining accuracy of a variable pitch screw rotor, comprising the following steps: 1) Dividing the end face profile of the rotor into an involute, addendum circle, epicycloid, and dedendum circle; 2) Dividing one of the involute, addendum circle, epicycloid, and dedendum circle into N equal segments, with the connection point between each segment being the tool point; the line connecting the tool point and the origin is the extreme diameter L, and the angle between the extreme diameter L and the coordinate axis is θ; 3) For each toolpath, the tool point is used as the entry point, and the workpiece is rotated by an angle θ so that the extreme diameter is parallel to the coordinate axis; 4) The tool rotates along a direction parallel to the coordinate axis from one end of the workpiece to the other end; 5) After the tool is lifted to the outside of the workpiece, it moves to the cutting start end, and steps 1-4 are repeated until one of the involute, addendum circle, epicycloid, and dedendum circle is machined; 6) Steps 1-5 are repeated until all the involute, addendum circle, epicycloid, and dedendum circle are machined.

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 present application relates to the technical field of robot grinding machine, especially to a torus secondary envelope worm grinding machine, comprising: a marble casting structure bed, a work shaft direct drive mechanism and a grinding wheel driving mechanism, the output end of the grinding wheel driving mechanism is installed with a grinding wheel, and one side of the work shaft direct drive mechanism is installed with a grinding wheel dressing mechanism; the present application adopts a marble bed matched with a linear motor, a torque motor direct drive and a grating ruler closed loop control, greatly improves the equipment stability and positioning accuracy, simultaneously breaks through the limitation of "B axis rotation center and actual torus center fixed connection" of market equipment, constructs a virtual torus center system through real-time linkage of X axis, Z axis and B axis, only needs to input torus size parameters on the numerical control controller interface, the system can automatically solve the compensation displacement, dynamically simulates the torus center of any size, does not need to replace hardware components, realizes the rapid change processing of full specification torus workpieces.

The invention provides a gear manufacturing method capable of shortening an incompletely machined part. A method for manufacturing a gear (30) includes rotating a rod-shaped workpiece (W) about a first axis (A1), and rotating a tool (20) provided with a cutting edge (201) on an outer peripheral portion about a second axis (A2) positioned at a position twisted with respect to the first axis (A1). A spiral tooth groove (301) is formed on the outer peripheral surface of the workpiece (W) by a cutting edge (201) of the tool (20) while relatively moving the workpiece (W) and the tool (20) in a direction parallel to the first axis (A1) at a speed synchronized with the rotational speed of the workpiece (W), in a cross section perpendicular to the first axis (A1), the diameter (DF) of a rolling circle (CF) in which the contour line (OE) of the tool (20) is in rolling contact with a target contour line of the gear (30) or an extension line (OG) thereof is at least one time the diameter (DT) of an addendum circle (CT).

The present application relates to the field of worm processing, especially to a main shaft mechanism for envelope torus worm rotary milling machine, including a column, the first sliding seat is slidably connected on the column, the supporting seat is rotatably connected on the first sliding seat, the second sliding seat is slidably connected on the supporting seat, the front end of the second sliding seat is fixed with the clamping-rotating mechanism, the middle position is provided with the supporting block, the arc-shaped groove is arranged on the supporting block, the supporting block on the right side of the workpiece is well positioned and supported during the cutting process of the cutting blade against the left side of the workpiece, the workpiece is well prevented from jumping and deformation under the conditions of large cutting amount, deep cutting depth and large cutting force, the stability of the workpiece is ensured, and the precision of worm processing is greatly improved.

The invention relates to a method for gear machining of a workpiece, in which a hobbing of the workpiece is carried out to produce a gear geometry of the workpiece, in which the workpiece is subjected to gear machining by gear skiving in addition to the hobbing.

A fixture device for machining Niemann worm gears using seven-axis five-linkage CNC milling includes a fixture support friction-reducing disc. An oil spraying lubrication assembly is floatingly and fixedly mounted on the upper surface of the fixture support friction-reducing disc. The lower surface of the oil spraying plate has multiple through holes. A clamping assembly is fitted onto the fixture support friction-reducing disc through these through holes, facilitating high-speed rotation around the central axis following the friction-reducing disc. A lifting column assembly is fixed to the oil spraying lubrication assembly, a tailstock support assembly is fixed to the lifting column assembly, and a circumferential limiting assembly for the oil spraying plate is fixed to the ground inside the machine tool's working chamber. This invention is used for milling Niemann series worm gears on a seven-axis five-linkage CNC machine tool, ensuring smooth side milling and preventing worm gear deformation. The adjustable length of the lifting column assembly and tailstock support assembly allows the fixture to adapt to the machining of worm gears of various geometric sizes and shapes, highlighting the adaptability and versatility of the fixture for vertical milling of worm gears.

The invention discloses a multi-degree-of-freedom numerical control enveloping worm grinding machine, and relates to the technical field of worm machining, the multi-degree-of-freedom numerical control enveloping worm grinding machine comprises a clamping mechanism, an adjusting mechanism for adjusting a grinding device is arranged on the side face of the clamping mechanism, and a grinding mechanism for grinding a worm is arranged on the adjusting mechanism. According to the worm grinding machine, the outer surface of the grinding wheel used for grinding worms is trimmed by arranging the trimming mechanism, the worms of different specifications can be ground conveniently, the grinding wheel is prevented from being replaced, and the machining efficiency is improved; the two grinding wheels are switched, the threads of the worm and the rod portion of the worm can be conveniently ground, the transmission gear is arranged to drive the two diamond wheels to move, the two diamond wheels are made to be close to each other, and grinding wheels of different sizes can be conveniently trimmed.

The present application relates to gear machining technical field, especially a kind of variable tooth thickness modification machining method for double lead worm gear and worm, including the wave form distortion rate of idle cutting force of hobbing cutter and torsional stiffness coefficient;Real-time monitoring cutting force wave form distortion rate and tool torsional deformation, calculate disturbance intensity index to divide disturbance level and set detection opportunity;Through the tooth thickness curve of actual measurement, tooth thickness change rate coefficient is obtained to judge machining quality;The tooth thickness deviation curve of unqualified tooth groove is analyzed to determine the dominant interference type, and the spindle speed or tool pose is regulated based on disturbance level;The control effect is verified by attenuation coefficient;When not up to standard, attenuation difference is used to optimize control coefficient;Finally, the overall quality of worm is evaluated by the consistency coefficient of tooth thickness change rate of each tooth groove of full tooth surface.The present application solves the problem that the full tooth surface consistency of formed worm is low due to the resonance and deformation disturbance of asymmetric characteristics of hobbing cutter in variable tooth thickness worm machining.

The invention discloses a multifunctional worm turning device which comprises a tool apron body installed on a lathe tool rest, a mounting base is arranged on the tool apron body, a detachable tool mechanism is installed on the mounting base, the tool mechanism can be rotationally adjusted in the mounting base, and the tool mechanism is fixedly installed in the mounting base through a fixing piece after being rotationally adjusted. Through cooperation of the tool apron body and the tool mechanism, rapid installation of the tool can be achieved, the head of the tool bar is provided with an auxiliary supporting point capable of providing large supporting force, it can be guaranteed that the tool has high cutting force in the tool turning process, and abnormal working conditions such as turning vibration and blade shattering are avoided; blades can be selected and switched according to the material and hardness of the worm to be machined in the machining process, and meanwhile the abraded blades can be replaced at will in the machining process without affecting the machining precision of parts; in addition, the device is low in cost and can meet the requirement for turning of most worm tooth profiles.

The invention relates to the technical field of worm machining, and discloses a machining and shaping process applied to a gear worm, which comprises the following steps: S1, clamping and fixing a worm to be machined on machining equipment; s2, setting a hypothetical worm gear of which the tooth number is more than that of the actual worm gear by delta Z teeth according to machining requirements; s3, the core angle increment W in the machining path is recalculated based on the hypothetical worm gear in the S2, and direct and accurate modification in the worm tooth surface machining process is achieved; and S4, the machining equipment feeds on the basis of the machining path in the S3 to machine and shape the worm. The machining and shaping process applied to the gear worm can effectively solve the problems that in the prior art, during machining, the worm is prone to vibration due to high-speed rotation, an existing clamping and supporting structure cannot guarantee continuous coaxiality, accurate execution of core machining parameters is directly affected, the optimization effect of a virtual benchmark cannot be accurately achieved, and machining precision is affected. And finally, the machining precision of the tooth surface of the worm is insufficient.

The invention discloses an off-line tool setting toroidal worm machining method and relates to the technical field of toroidal worm machining, the machining method is achieved based on a tool setting gauge and a positioning sleeve, and the machining method comprises the following steps that firstly, one end of a toroidal worm is sleeved with the positioning sleeve; step 2, mounting the tooth-punched toroidal worm on a tool setting gauge; thirdly, the tool setting block is adjusted to be close to a tooth groove of the toroidal worm and make contact with the grinding tooth face of the toroidal worm; 4, rotating the toroidal worm to enable the pointer of the dial indicator to reach the 0 point position; fifthly, a positioning sleeve on the toroidal worm is rotated to make the collision block make contact with the check block, then a jackscrew is screwed to lock the positioning sleeve, and offline tool setting is completed; and 6, transferring the toroidal worm (together with the positioning sleeve on the toroidal worm) subjected to tool setting to a machine tool for positioning and clamping. According to the off-line tool setting toroidal worm machining method, due to off-line tool setting, the auxiliary time of a machine tool is shortened, operation is easy and convenient, and the toroidal worm machining precision and machining efficiency are effectively improved.

A manufacturing method of a gear (30) includes: rotating a rod-shaped workpiece around a first axis (A1); rotating a tool having a cutting edge (201) on an outer peripheral side around a second axis at a twisted position with respect to the first axis; and while relatively moving the workpiece and the tool in a direction parallel to the first axis at a speed synchronized with a rotation speed of the workpiece, forming a spiral tooth groove (301) on an outer peripheral surface of the workpiece by bringing the cutting edge of the tool into contact with the outer peripheral surface of the workpiece and removing a material of the workpiece at a contact position by the relative movement between the tool and the workpiece. 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 (OE) of the cutting edge of the tool is in rolling contact with a target contour line (OG), which is a contour line of the spiral tooth groove to be formed, at a predetermined point (R) 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 or the extension line at a point other than the predetermined point. In the plane perpendicular to the first axis, a diameter (DF) of a first circle, which is a circle centered on the first axis and passing through the predetermined point, is 1 time or more and 1.5 times or less a diameter (DT) of a second circle which is a tooth tip circle (CT) of the gear manufactured from the workpiece centered on the first axis.

The invention relates to a method for dressing a multi-start grinding screw (1) which has several parallel screw flights (2, 3, 4), wherein the dressing of the individual screw flights (2, 3, 4) is carried out successively, wherein a disc-shaped dressing tool (5) profiles the flanks (6, 7; 8, 9; 10, 11) of the individual screw flights (2, 3, 4) and wherein, when dressing a screw flight (2, 3, 4), first a first flank (6, 8, 10) and then the second flank (7, 9, 11) opposite the first flank (6, 8, 10) is profiled.In order to make such a method suitable for profiling a grinding worm with a high degree of freedom in such a way that as many requirements as possible for the geometry of the gear to be ground can be met, the invention provides that, for the purpose of grinding a gear with inequidistant teeth using the grinding worm (1), the geometry of at least two worm flights (2, 3, 4) differs from each other.

To provide a method for manufacturing a gear capable of shortening an incompletely machined part.SOLUTION: Rotating a rod-shaped workpiece W about a first axis A1, and rotating a cutter 20 provided with a cutting edge 201 on an outer peripheral portion about a second axis A1 at a twisted position with respect to the first axis A2; The method includes forming the spiral grooves 301 on the outer peripheral surface of the workpiece W by the cutting edges 201 of the tools 20 while relatively moving the workpiece W and the tools 20 in a direction parallel to the first axis A1 at a speed synchronized with a rotation speed of the workpiece W, wherein a diameter DF of a rolling circle CF where a contour line OE of the tools 20 and a target contour line of the gears 30 or an extension line OG of the target contour line are in rolling contact with each other is equal to or larger than a diameter DT of an addendum circle CT in a cross section perpendicular to the first axis A1.SELECTED DRAWING: Figure 3

The utility model provides a transmission worm whirlwind milling device and belongs to the technical field of whirlwind milling devices. The machining mechanism is arranged on the fixed round seat and is used for conveniently disassembling and replacing a cutter head of the whirlwind mill, and specifically, the machining mechanism further comprises a rotating assembly arranged on the fixed round seat; the dismounting assembly is arranged on the fixed round seat and is matched with the rotating assembly for use; the limiting assembly is arranged on the fixed round base and used in cooperation with the dismounting assembly. Two supporting rods are symmetrically arranged and are fixed on the two sides of the outer wall of the fixed round seat; the collecting mechanism is arranged on the supporting rod and used in cooperation with the machining mechanism. According to the utility model, the whirlwind milling cutter disc which is used for a long time can be conveniently detached for maintenance and replacement, the precision and the quality of the whirlwind milling cutter disc for processing a worm in the follow-up process can be effectively improved, metal fragments which fall off from the whirlwind milling cutter disc can be collected in a centralized manner, and the labor intensity of workers is further reduced.

The utility model discloses a worm grinding machine capable of being additionally provided with a change gear, which comprises a worm grinding machine, a fixed rail is fixedly connected to the top end in the worm grinding machine, a change gear body is arranged in the fixed rail, an air blower is arranged at the bottom end of the change gear body, and the air outlet end of the air blower is communicated with an air outlet pipe. The outer bottom side of the air outlet pipe is fixedly connected with a first fixing ring, an adjusting pipe is slidably arranged outside the first fixing ring, the inner upper side of the adjusting pipe is fixedly connected with a second fixing ring, the second fixing ring is in sliding fit with the air outlet pipe, and a first compression spring is arranged between the second fixing ring and the first fixing ring; the first compression spring is arranged outside the air outlet pipe in a sleeving mode, the fixing rail is connected with a positioning mechanism used for fixing the change gear body, scrap iron adsorbed on the worm can be blown off conveniently, and the surface smoothness of the worm is guaranteed.

The invention discloses a worm and gear grinding device, and relates to the technical field of worm and gear grinding, the worm and gear grinding device comprises a chassis, a rack assembly, a lifting assembly, a positioning assembly and a grinding force control assembly, the rack assembly is mounted on the chassis, the lifting assembly and the positioning assembly are both mounted on the rack assembly, and the grinding force control assembly is mounted on the lifting assembly. The lifting assembly is used for driving the worm to ascend and descend relative to the worm gear, the positioning assembly is used for positioning the worm gear, the worm gear is meshed with the worm, the worm can rotate, and the grinding force control assembly is installed on the positioning assembly. And the grinding force control assembly is used for controlling the grinding force between the worm gear and the worm. The grinding force can be controllable and stable, and efficient and precise grinding of the worm gear and the worm is achieved.

This invention relates to a guideway-type machine tool and its machining method for machining angle-modified toroidal worm gears. The guideway-type machine tool includes a machine body, on which a horizontally movable tool setting module is mounted. The tool setting module is connected to a tool holder module capable of circular offset and vertical movement. The tool holder module is connected to a grinding wheel module capable of forward and backward movement and flipping. The machine body also includes a clamping module for holding the worm gear blank. The grinding wheel module is positioned on the side of the worm gear blank. The tool holder module moves along a helical path to achieve angle-modified machining of the worm gear blank. Compared with existing technologies, this invention uses an axis deflection angle Δ∑ to control the slider movement, causing the tool holder to offset to the corresponding machining position, thus achieving the desired angle modification parameter p when the grinding wheel is machining the toroidal worm gear. d The adjustment allows the tool holder to move along a spiral path to achieve the angular shaping of the toroidal worm gear, and also to adjust the grinding wheel tilt angle β, thereby effectively improving machining efficiency while ensuring machining accuracy and reliability.