285results about "Gear teeth manufacturing tools" patented technology

Disclosed is a skiving tool for machining teeth where machining marks are produced at unequal distances. Some cutting edges of a skiving tool at least partially extend at different heights along a tool axis. During machining, cutting edges arranged at different axial heights relative to the workpiece axis successively engage on a tooth flank. The engagement of the cutting edges occurs at different time intervals and at different distances in the width direction of the tooth flank. The effects of the engagement of the cutting edges on the machining process and the excitation of vibrations when the teeth produced are used therefore have a frequency spectrum of greater width and lower amplitude than if the cutting edges were to engage at equal time intervals and equal distances. The more irregular surface structure of the teeth have a positive effect on noise excitation behavior when teeth are engaging with other teeth.

The invention provides a tooth scraping machine tool based on a cylindrical cutter and a machining method.The tooth scraping machine tool comprises a machine tool body, a stand column is slidably installed at the top of the machine tool body through a radial feeding device, a sliding seat is slidably installed on the stand column through an axial feeding device, and a sliding plate is rotatably installed on the sliding seat through a moving angle adjusting mechanism; a main shaft is installed on the sliding plate in a sliding mode through a tangential feeding device, a cylindrical cutter used for gear scraping machining is installed at the output end of the main shaft, a workbench is arranged on the side edge of the stand column and located on the top of the lathe bed, and the workbench is used for clamping a gear to be machined. The machine tool adopts the cylindrical cutter as the cutter of the tooth scraping machine tool, so that the problems of instability and high cost of the traditional tooth scraping machine tool which adopts a conical cutter to process the tooth form are solved.

The invention provides a double-pressure-angle asymmetric tooth profile design and worm grinding wheel tooth grinding method. A tooth profile equation of the asymmetric gear is deduced, the meshing relation between a rack tool and the gear is analyzed in detail, and a precise profile geometric model of the dual-pressure-angle asymmetric gear is further established. In the aspect of worm grinding wheel gear grinding machining, the contour design and finishing method of a worm grinding wheel and application of the worm grinding wheel in asymmetric gear machining are studied, and a worm grinding wheel geometric model and a diamond roller geometric model needed by double-pressure-angle asymmetric gear worm grinding wheel gear grinding are established. The method provides a theoretical basis and an accurate model for design and processing of the asymmetric gear, and is of great significance for improving the efficiency and reliability of a gear transmission system.

The invention discloses a turning and rolling composite cutter for machining a through hole, and particularly relates to the technical field of turning and rolling composite cutters, the turning and rolling composite cutter comprises a turning and rolling composite cutter body and an elastic assembly; the turning and rolling combined tool body comprises a tool bar body, a tool bit body, a retainer, a rolling needle, a lock nut and a turning tool. The elastic assembly comprises an external thread block, an internal thread groove, a square sliding groove, a square sliding plate, a spring and an abutting block. The external thread block is fixedly arranged on the side, close to the tool bar body, of the tool bit body. An inner thread groove is formed in the side, close to the tool bit body, of the tool bar body. A square sliding groove is formed in the cutter bar body. The square sliding plate is slidably arranged in the square sliding groove. Two ends of the spring are fixedly connected with the inner wall of the square chute and the square sliding plate; the abutting blocks are fixedly arranged on the side, away from the spring, of the square sliding plate in an annular array. The tool bar is reasonable in structural design, the tool bar body and the tool bit body are designed separately, and the tool bar body and the tool bit body can be installed more stably through the acting force generated when the spring contracts.

The present invention proposes a diamond tool for dressing an internal meshing honing wheel, the diamond tool comprising an annular tool base and a diamond layer disposed on the front side of the tool base; the diamond layer is coaxially fixed to the tool base; and a trimming bevel tooth is provided on the outer periphery of the diamond layer so that the end face tooth edges of the trimming bevel tooth are used to dress the honing wheel. The diamond tool of the present invention is an external tooth helical gear structure. When meshing and dressing the honing wheel, material is removed from the honing wheel only by relying on the end face tooth edges of the trimming bevel tooth on the diamond layer. The trimming bevel tooth has a trimming tooth profile, which can achieve tooth profile modification of the honing wheel. At the same time, the movement of the honing machine tool drives the diamond tool to achieve tooth direction modification of the honing wheel tooth surface. Since the tooth surface of the trimming bevel tooth does not contact the tooth surface of the honing wheel, it is suitable for dressing honing wheels with different tooth direction modification requirements.

The invention discloses a segmented combined type worm grinding wheel based on spiral surface structuring and a laser finishing method, and belongs to the technical field of precise gear grinding. The working surface of the inner side of a spiral tooth groove of the worm grinding wheel at least comprises a section of structured area and a section of unstructured area in the axial direction; the structured area is provided with a crescent groove used for forming a grinding fluid storage and abrasive dust discharge channel in the grinding process. And the unstructured area keeps a continuous grinding surface and is used for finishing the surface of the machined workpiece in the structured area. According to the method, the laser processing head is controlled through multi-axis linkage to accurately describe an arc-shaped processing track in a spiral expansion coordinate system, the morphology consistency and the space precision of grooves are guaranteed, and the manufactured worm grinding wheel has good cooling, chip removal and accurate grinding performance and is suitable for high-efficiency and high-precision gear manufacturing.

This invention provides a broach for gear machining and its finishing device, relating to the field of gear manufacturing technology. The broach and finishing device include a bed, a drive unit, a CNC system, a clamping device, a coolant storage tank, a high-pressure air supply device, a dust extraction device, and two sets of cooling pumps. When the coolant cooling effect is insufficient, the invention increases the coolant flow rate through an electrically controlled flow valve to improve the cooling effect. If necessary, forced cooling can be achieved by simultaneously activating two sets of cooling pumps, significantly enhancing the cooling effect. The high-pressure air supply device provides high-pressure air to the compressed air nozzle, which is then sprayed onto the surface of the CBN grinding wheel through the jet chamber outlet to clean the surface, effectively reducing clogging and the frequency of grinding wheel dressing. Simultaneously, the dust extraction device, dust extraction pipe, and dust extraction hood remove dust from inside the grinding wheel hood, reducing floating dust and preventing dust from adhering to the grinding wheel surface and entering the grinding area.

The invention relates to a method for machining pre-toothed workpieces by means of a continuous generating grinding process using a grinding worm wheel (100). The grinding worm wheel is dressed, and workpieces are machined using the dressed grinding worm. For each grinding stroke, the worm thread flanks have a contact zone (104, 104') in which the grinding worm wheel comes into machining engagement with the workpiece. Each contact zone has a quality-determining region, and the quality-determining regions of at least some of the contact zones are positioned so as to not overlap with the quality-determining regions of all other contact zones. A plurality of grinding strokes are carried out using each of the contact zones before the grinding worm wheel is dressed again. The invention also relates to a correspondingly designed gear-cutting machine.

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 invention relates to a tool head for producing or machining teeth, in particular internal teeth, of a workpiece in the kinematics of hobbing peeling, said teeth being rotated about the tooth axis of rotation (C1) thereof by means of a peeling tool (S) which is held in the tool head and is rotated about the tool axis of rotation thereof, wherein the tooth axis of rotation (C1) and the tool axis of rotation (S1) form an axis angle of intersection (X), which is not zero, with a tool holder (7b), which defines an orientation of the tool axis of rotation (S1) relative to the tool head, and a shaft (6), the shaft is mounted in the tool head for rotation about its drive shaft axis of rotation (B1) and is rotationally driven for machining teeth, and wherein an orientation () of the tool axis of rotation (S1) is present, which orientation is at least 15 DEG and no more than 85 DEG, for a deviation of the orientation of the drive shaft axis of rotation (B1) from the axis position, the axis position is oriented at an axis intersection angle [sigma] with the tooth rotation axis (C1) and the orientation is angled with respect to a plane orthogonal to the drive shaft rotation axis (B1).

The invention relates to the technical field of gear grinding machining, in particular to a grinding machine tool suitable for gear rotating face grinding, which comprises a rack and a digital display control panel, the rack is respectively provided with a lower clamp table and an upper clamp table from bottom to top, and the lower clamp table and the upper clamp table are used for clamping a gear main body; grinding wheel main bodies are arranged on the two sides of the lower clamp table and the upper clamp table; a vertical beam is arranged on one side of each grinding wheel body, an elastic pulling and pressing assembly used for conducting elastic pulling and pressing on the vertical beams is arranged on the rack, and the rack, the lower clamp table, the upper clamp table, the grinding wheel bodies, the rigid pushing and pressing assembly, the grinding wheel dressing assembly, the lifting driving assembly, the vertical beams, the elastic pulling and pressing assembly and the like cooperate and cooperate with one another. Double-station synchronous grinding can be achieved, the grinding efficiency is improved, hard contact damage can be avoided, stable rigid pushing force can be provided, the grinding feeding amount can be accurately controlled, and safety and machining precision are both considered by combining the two modes of flexible contact and rigid pushing.

The invention relates to a method for producing and machining toothed workpieces (1), the toothing being a blind toothing having a toothing region (A) which forms a flank depression region (B) in which the base of a flank depression extends in a recessed manner with respect to the tooth flank into a fine-machining region (C), such that, in a fine-machining step, an end portion of a honing tool moves only in this depression region (B). The flank depressions are formed by means of an undercutting tool so that flanks (9) of the flank depressions are produced which extend in parallel with one another.

The invention discloses a composite worm grinding wheel and a dressing method thereof.The composite worm grinding wheel is composed of a surface micro-structured grinding wheel body and a fine grinding wheel body which are axially connected into a whole, the surface micro-structured grinding wheel body adopts ultrasonic vibration to assist a single-point diamond pen in dressing, and a large number of separated-continuous oblique curve micro grooves are dressed in the tooth side face; cutting force, heat production and the temperature of a contact area are reduced by reducing the contact layer, the effective blade grinding number of the grinding wheel during grinding is increased, and the problems of blockage of the grinding wheel and thermal damage to the surface of a workpiece are effectively solved; a fine grinding working face is formed on the outer side tooth face of the fine grinding wheel, and the problem that the surface roughness is large is solved by using grinding materials with the large particle size number. The device integrates the functions of rough grinding and accurate grinding, machining is completed through one-time clamping, repeated clamping and positioning errors are reduced, materials are efficiently removed, chip removal and heat dissipation are improved, the machining precision and size consistency are improved, and the contradiction that efficiency, heat dissipation and surface quality are difficult to consider in the generating grinding process is solved.

To provide a determination method of a gear working condition and a determination program of a gear working condition which can reduce vibration, in finishing of a gear.SOLUTION: A determination method of a gear working condition includes: a first step of measuring the shape of workpiece having a gear shape, and thereby acquiring a pitch error of the workpiece; a second step of performing frequency analysis of the pitch error, and thereby acquiring a rotation order component of a cumulative pitch error; a third step of multiplying the rotation order component of the pitch error by the number of rotation when the workpiece is worked, and thereby acquiring a frequency component of working load fluctuation by the pitch error; and a fourth step of setting the number of rotation when the workpiece is worked, so that a peak frequency of the working load fluctuation and resonance frequency of a gear working device are shifted from one another.SELECTED DRAWING: Figure 3

To provide a gear machining tool having abrasive grains and preventing waste of the abrasive grains.SOLUTION: The gear machining tool 1 is a gear machining tool for polishing a tooth surface formed on a workpiece, and includes an annular base material blade part 12 having a plurality of blades 14 on an outer peripheral surface at one end of a shaft-like base material body part 11. And a plurality of abrasive grains provided on the rake face 14a so as to overlap a ridge line portion 15 which is a boundary between the flank face and the rake face 14a when viewed from the direction of the rotation axis C of the substrate 10, in which the abrasive grains are not provided in a region other than the ridge line portion 15 on the flank face. 14a.SELECTED DRAWING: Figure 5

The invention relates to a machining of a toothing (10) by skiving, in which machining traces (52) having unequal distances are produced. For this purpose, the scraping tool (60; 74) and at least some of the cutting edges (40; 40.1, 40.2, 40.3) extends at least partially at different heights along a tool axis (18) of the scraping tool. During machining, cutting edges arranged at different axial heights with respect to the workpiece axis (16) sequentially act on the tooth flanks (32). As a result, the cutting edges engage at different time intervals and at different pitches in the tooth flank width direction (54). Thus, the reaction of the cutting edge engagement on the machining process and the vibrational excitation during the use of the produced teeth have a wider frequency spectrum and a lower amplitude compared to the case of temporally and spatially equidistant cutting edge engagement. In particular, the more irregular surface structure of the manufactured toothing can produce an advantageous effect on noise excitation performance when the toothing is engaged with a corresponding toothing.

The utility model discloses a grinding wheel for a gear, which comprises a grinding wheel base body, two grinding bosses are arranged on the grinding wheel base body in the axial direction, the two grinding bosses are respectively arranged at the two ends of the grinding wheel base body in the axial direction in a protruding mode, grinding portions are arranged on the grinding bosses, and the grinding portions are arranged on the grinding wheel base body. And the grinding part is used for grinding an external workpiece. According to the grinding wheel for the gear, the grinding bosses are arranged at the two axial ends of the grinding wheel base body in the protruding mode respectively, the grinding portions used for grinding the gear are arranged on the grinding bosses, the contact area between the grinding wheel and a gear workpiece can be reduced during grinding, and therefore the stress generated when the gear workpiece is ground by the grinding wheel is increased, and the gear workpiece can be prevented from being damaged. And the grinding efficiency is improved.

Makes it easier to attach the two hobs. [Solution] The tandem hob comprises a first hob including a plurality of first cutters positioned at intervals on a first helix centered on a first central axis, a second hob including a plurality of second cutters positioned at intervals on a second helix centered on a second central axis, and a collar connecting the first hob and the second hob such that the first central axis and the second central axis lie on a common axis. When the first hob and the second hob are connected by the collar, the first cutter includes a first cutting edge having its tip on the first side in the circumferential direction around the common axis. The second cutter includes a second cutting edge having its tip on the second side opposite to the first side in the circumferential direction around the common axis. The first hob and the second hob are restricted from relative rotation around the common axis and from approaching each other along the common axis.

The utility model discloses a blade-replaceable finger type gear milling cutter, particularly relates to the technical field of metal processing, and comprises a gear milling cutter main body for processing a gear, the gear milling cutter body comprises a cutter column body, a first chip containing groove, a second chip containing groove, a third chip containing groove and a fourth chip containing groove are formed in the outer portion of the cutter column body, and the first chip containing groove, the second chip containing groove, the third chip containing groove and the fourth chip containing groove are distributed in an annular array mode. The first chip containing groove, the second chip containing groove and the third chip containing groove are arranged. According to the utility model, the peripheral tooth blades or the top tooth blades on the gear milling cutter main body are disassembled and assembled through the fastening screws, so that a worker can adjust the layout of the peripheral tooth blades and the top tooth blades according to processing requirements, and the degree of freedom of arrangement of the peripheral tooth blades and the top tooth cutter shaft is improved; meanwhile, the cutting output and the cutting force of the peripheral tooth blade and the top tooth blade can be adjusted, so that the practicability and the operability of the cutter are improved.

To provide a device and a method for polishing a gear, which can reduce material cost and polishing cost of a polishing gear and solving the problem of a resource environment.SOLUTION: A polishing device 1 for rotary-driving a polishing gear to polish the tooth surface of a polished gear in a state where the polishing gear 8 and the polished gear 9 are engaged with each other is configured such that a coating layer 10 in which a film thickness α of an acrylic resin material is about 20 μm is formed on the tooth surface 8a of the polishing gear, a polishing liquid containing silicon carbide abrasives smaller in average grain diameter than the film thickness of the coating layer of the polishing gear is supplied to the engaging place of the polishing gear and the polished gear, and the polishing gear is rotary-driven to polish the tooth surface 9a of the polished gear.SELECTED DRAWING: Figure 2

The invention relates to a method for forming a chamfer (21) at an edge (20) defined by an end face (22) of a gear wheel (3) and a tooth surface (6, 7) adjoining the tooth portion of the gear wheel (3) using a cutting tool (1) having at least one cutting edge (11). Furthermore, the invention relates to a cutting tool for carrying out the method and to a blade, a device and a control program for carrying out the method. It is crucial that the cutting edge (11) machines only one machining section of the edge (20) per rotation of the cutting tool (1).

A gear grinding tool (100) for hard finishing of gear components by continuous gear grinding, comprising: two gear worms (20; 30) for gear grinding a gear contour of a gear component, wherein the gear worms (20; 30) each consist essentially of a matrix in which at least one grinding medium (52; 62) is embedded, and each have an axial opening (70; 72); and a sleeve (40) on which the gear worms (20; 30) are arranged one behind the other and which essentially consists of a polymer matrix that is metallurgically bonded to a respective lateral surface (24; 34) of the openings (70; 72) of the gear worms (20; 30), wherein profiles (50; 60) of the two gear worms (20; 30) form respective sections of a common, helically wound profile of the gear grinding tool (100); and a method for manufacturing a gear grinding tool comprising arranging two gear worms (20;30) with mutually facing planar surfaces (28; 38) and casting of a sleeve (40) in the axial openings of the roller screws (20; 30).;

The invention relates to a method for profile grinding of a periodic structure, in particular a gear, with a grinding wheel driven to rotate about its axis of rotation, in which the grinding wheel surface on a first side is provided with a spiral dressing track configuration by a profile / dressing process, wherein the dressing track configuration is multi-turn.

The invention relates to the technical field of gear machining equipment, in particular to a gear cutting tool and a machining method.The gear cutting tool comprises a machine tool, a telescopic rod, a fixing table and a spray head and further comprises a clamp, a gear shaping cutter assembly and a flowing assembly, the clamp is connected to the lower end of the telescopic rod, the gear shaping cutter assembly is connected with the clamp, and the gear shaping cutter assembly comprises a cutter head, an upper cutter and a lower cutter; the cutter head is connected with the clamp, and the upper cutter and the lower cutter are both connected with the outer wall of the cutter head. By arranging the upper cutter and the lower cutter, the original cutting output is divided into two parts, the load of a cutting edge during cutting is reduced, the service life of the cutter is prolonged, a cooling cavity is formed between the upper cutter and the lower cutter in the cutting process, cooling oil is gathered in the cooling cavity, and in the cutting process of the upper cutter and the lower cutter, the cutting efficiency is improved. The cutter can be fully cooled by cooling oil, and the upper cutter and the lower cutter can be fully lubricated in the cutting process, so that the service life of the cutter is prolonged.

The invention relates to a method for machining pre-toothed workpieces by means of a continuous generating grinding process using a grinding worm wheel (100). The grinding worm wheel is dressed, and workpieces are machined using the dressed grinding worm wheel. For each grinding stroke, the worm thread flanks have a contact zone (104, 104') in which the grinding worm wheel comes into machining engagement with the workpiece. Each contact zone has a quality-determining region, and the quality-determining regions of at least some of the contact zones are positioned so as to not overlap with the quality-determining regions of all other contact zones. Each workpiece is machined, in at least one grinding stroke, with a decoupled contact zone, the quality-determining region of which has not yet been used to machine another workpiece since the dressing process. The invention also relates to a correspondingly designed gear-cutting machine.

A generating grinding tool (100) for hard finishing a toothed assembly by continuous generating grinding, the generating grinding tool comprising: two grinding worms (20; 30) for generating and grinding the toothed profile of the toothed assembly, the grinding worms (20; 30) each substantially consists of at least one abrasive (52; 62), and each having an axial opening (70; 72); and a sleeve (40) that grinds the worm (20; 30) are arranged one after the other, and the sleeve is substantially composed of a polymer matrix which is connected to the grinding worm (20; 30), and an opening (70; 72) and a respective circumferential surface (24; 34), wherein the two grinding worms (20; 30) and a profile (50; 60) forming a corresponding part of a common spiral winding profile of the generating grinding tool (100); the invention also relates to a method for producing a generating grinding tool, comprising arranging two grinding worms (20; 30) such that the flat surface (28; 38) and casting the sleeve (40) to the grinding worm (20; 30) in the axial opening.

To reduce shape errors in the shaping of the cutting edge of cutting tools. [Solution] The cutting edge shaping method for a cutting tool comprises a tool preparation step of preparing a cutting tool having an outer blade, and a cutting edge shaping step of shaping the cutting edge by spraying abrasive material from a nozzle onto the cutting edge of the outer blade so that the angle between the spraying direction of the abrasive material from the nozzle and the central axis of the cutting tool is the same as the helix angle of the cutting tool.

A gear cutter tool (308) is provided for cutting internal teeth into a workpiece (312) to form a gear. The gear cutter tool is configured to rotate about a longitudinal gear cutter axis of rotation (354). The workpiece is configured to rotate about a workpiece axis of rotation (374). The gear cutter tool includes a gear cutter having a plurality of cutting teeth (332). Each cutting tooth of the plurality of cutting teeth has a tooth flank (341) defining a cross-axis tooth angle (350) between the tooth flank and a line (352) intersecting the longitudinal gear cutter axis of rotation. The cross-axis tooth angle is between 1 and 15 degrees. The cross-axis tooth angle (372) of the gear cutter tool, defined between the longitudinal gear cutter axis of rotation and the workpiece axis of rotation, is substantially close to 0 degrees.

The utility model relates to the technical field of CNC machining, in particular to a gear shaping cutter for machining a miniature inner hole key groove, which is provided with a cutter handle, the cutter handle is provided with a cutter head, the cutter head comprises a first arc-shaped cutting edge and a second arc-shaped cutting edge, and the two sides of the first arc-shaped cutting edge are respectively provided with a first cutting edge and a second cutting edge. As the included angle between the first arc-shaped cutting edge and the first arc-shaped cutting edge and the included angle between the second arc-shaped cutting edge and the first arc-shaped cutting edge are smaller than 90 degrees, materials can be gradually and evenly removed, a preset angle is formed, and the problems of stress concentration and tearing caused by one-time large-amount cutting are solved; materials are gradually removed by arranging the first cutting edge and the second cutting edge, the problems of material tearing, damage and the like caused by one-time large-amount cutting are avoided, and the overall performance of a product is protected; and the whole machining process can be completed by only one cutter, so that the machining flow is simplified, and the production efficiency is improved.