411 results about "Honing" patented technology

The invention discloses a clamp tool for CNC equipment double-station hole machining and a using method, and belongs to the technical field of machining. The clamp tool comprises a base, a corner oil cylinder is arranged on the base, profiling plate mounting bases are symmetrically arranged on the two sides of the corner oil cylinder, profiling plates are arranged on the profiling plate mounting bases and used for containing thin plates, and first through holes are formed in the profiling plates; the output end of the corner oil cylinder is arranged in the direction away from the base, an abutting structure is arranged at the output end of the corner oil cylinder, and the abutting structure can be driven by the output end of the corner oil cylinder to rotationally descend to be close to the thin plate and rotationally ascend to be away from the thin plate. Double-station machining of the thin plate can be achieved, machining efficiency is improved, machining quality is guaranteed when clamping drilling and inner hole honing machining are conducted on the thin plate, the surface of the plate is prevented from being damaged, the production yield is increased, and production cost is reduced.

The utility model discloses a traction type honing machine based on wind power driving, two wind wheels are fixed at two ends of an oilstone mechanism, the two wind wheels are assembled with the movable ends of pneumatic-electric integrated slip rings, the static ends of the two pneumatic-electric integrated slip rings are respectively connected with two traction ropes, the two traction ropes are both connected with the linear free end of a linear execution mechanism, and the linear execution mechanism is connected with a motor. The linear execution mechanism drags the oilstone mechanism to axially move in a to-be-polished hole of a workpiece through the traction rope, air is blown to the wind wheel through the pneumatic-electric integrated sliding ring, the wind wheel is made to rotate, and then the oilstone mechanism is driven to rotate in the to-be-polished hole. According to the honing mechanism, a main shaft stretching into a workpiece and used for supporting the honing mechanism is omitted, the phenomenon that the main shaft swings downwards and shifts due to the fact that the main shaft is too long is avoided, axial movement of the oilstone is achieved in a traction mode of the traction rope, and the using effect is good. The oilstone is driven to rotate through wind power, the structure is simple, radial displacement of the oilstone is supplied through piezoelectric ceramic deformation, the structural design is ingenious and reasonable, redundancy is avoided, and operation is stable.

The invention discloses a multi-station cooperative hydraulic valve element inner hole fine polishing and rolling workbench which comprises a base, a lifting seat is arranged in the base, a controller is arranged on one side of the base, the multi-station cooperative hydraulic valve element inner hole fine polishing and rolling workbench further comprises a multi-station machining assembly, and the multi-station machining assembly is arranged in the lifting seat. The invention relates to the technical field of hydraulic valve element production equipment, hydraulic valve elements are fixed through fixing stations which are annularly distributed at equal intervals, and the hydraulic valve elements are sequentially conveyed to the positions below the machining stations, so that a multi-station machining array conducts corresponding machining operation on inner holes of the multiple hydraulic valve elements at the same time; and the workpiece is rotated and moved for multiple times, so that the inner hole of the hydraulic valve element is sequentially subjected to all procedures of preliminary honing, blowing cleaning and fine polishing rolling, the production procedures are simplified, the production efficiency and the machining precision of machining of the inner hole of the hydraulic valve element are remarkably improved, and therefore the requirement for large-scale production is met.

The invention discloses a design method of a complex shape modifying and finishing wheel and a honing wheel for internal meshing powerful gear honing, and relates to the technical field of machine manufacturing. The method comprises the following steps: establishing a trimming wheel tooth surface numerical model, and judging whether the modification amount of the trimming wheel tooth surface numerical model meets the modification requirement or not; if yes, establishing a space coordinate conversion relation and a conjugate meshing equation of the dressing wheel and the honing wheel, and establishing a honing wheel tooth surface numerical model in combination with the dressing wheel tooth surface numerical model; according to the space coordinate conversion relation between the workpiece gear and the honing wheel and the honing wheel tooth surface numerical model, a complex modification workpiece gear tooth surface numerical model is established, and whether the modification amount of the complex modification workpiece gear tooth surface numerical model meets the modification requirement or not is judged; and if yes, a dressing wheel three-dimensional solid model and a honing wheel three-dimensional solid model are established according to the dressing wheel tooth surface numerical model and the honing wheel tooth surface numerical model respectively. According to the method, precise design and verification of the complex shape modifying and finishing wheel and the honing wheel for powerful gear honing can be achieved.

The invention discloses precise honing equipment for a planetary reducer sun gear, and particularly relates to the field of sun gear finish machining, the precise honing equipment comprises a honing shell and an operation table fixedly connected in the honing shell, an angle adjusting assembly is installed on the operation table, and the output end of the angle adjusting assembly is connected with a first motor; the angle adjusting assembly is used for driving the first motor to move in the preset direction, the output end of the first motor is fixedly connected with a telescopic rod, the first motor is used for driving the telescopic rod to rotate, the telescopic rod is fixedly connected with a honing wheel, and the two sides of the operation table are fixedly connected with a first positioning support and a second positioning support correspondingly. Uniform radial expansion clamping is carried out from the inner hole of the sun gear through a conical rod-expansion block mechanism, centering clamping with the inner hole of a workpiece as the standard is achieved, clamping deformation is greatly reduced, the original precision of the workpiece is ensured, a reliable standard is laid for subsequent high-precision honing, and the yield is increased.

The utility model belongs to the technical field of inner hole machining, and discloses a pneumatic honing head. The pneumatic honing head is composed of a body, a piston, a gland and an oilstone box. The oilstone box is connected with two pistons in a group, the two pistons are distributed on two sides of the body, inner holes of two cylinders on two sides of the body are communicated, a hose and an air pressure adjusting valve are connected through the same connector, and pressure of the pistons on the two sides is consistent all the time. The honing difficulty of the taper hole is that the honing pressure is inconsistent due to the change of the diameter of the inner hole, the constant air pressure of the pneumatic honing head ensures that the output pressure of each piston is kept unchanged, so that the honing pressure is consistent, the honing removal amount of the inner wall of the taper hole is basically consistent, and the original taper is not changed. In the honing of inner holes with different tapers, only the appearance angle of the honing head body needs to be changed, the whole structure does not need to be changed, and the honing head adapts to honing of various tapers through the simplest change. The granularity of oilstone strips required by parts made of different materials and the air pressure value during honing are determined through trial grinding, so that efficient honing is achieved.

The invention belongs to the technical field of machine tool accessories, and particularly relates to a workpiece self-centering support frame for a honing machine tool, which comprises a fixed seat and a first workpiece limiting support seat, the first workpiece limiting supporting seat is connected to the fixing seat in a sliding mode through a supporting seat driving sliding mechanism so that the first workpiece limiting supporting seat can slide up and down in a reciprocating mode, at least one swing centering arm is arranged on one side of the fixing seat in the width direction, the lower end of the swing centering arm is hinged to the fixing seat, and the upper end of the swing centering arm is a contact centering end. An arc-shaped guide hole is formed in the swing centering arm, a guide column matched with the arc-shaped guide hole is arranged on the first workpiece limiting supporting base, and the swing centering arm is driven to swing in a reciprocating mode through sliding fit of the guide column and the arc-shaped guide hole. According to the workpiece self-centering supporting frame for the honing machine tool, self-centering supporting can be achieved, and the workpiece self-centering supporting frame for the honing machine tool has the advantages of being simple in structure, low in cost and the like and can be used as a substitute in machining of some machine tools.

The utility model discloses a honing head coarse oil stone seat expanding structure which comprises a honing head, a connecting seat is installed on the honing head, an oil stone seat is installed on the honing head, an oil stone is assembled on the oil stone seat, the oil stone seat is movably connected with the honing head to conduct expanding operation, and an adjusting middle shaft capable of sliding up and down is installed in the honing head. A fine grinding push groove and a coarse grinding push groove are formed in the outer side of the adjusting middle shaft, and a fine grinding wedge-shaped body and a coarse grinding wedge-shaped body which extend into the fine grinding push groove and the coarse grinding push groove correspondingly are installed on the oilstone base. According to the expanding structure for the coarse grinding oilstone seat of the honing head, the middle shaft is adjusted to move downwards to push the fine grinding wedge-shaped body through the fine grinding push groove so that the corresponding oilstone seat can expand outwards, the middle shaft is adjusted to move upwards to push the coarse grinding wedge-shaped body through the coarse grinding push groove so that the corresponding oilstone seat can expand outwards, and compared with an oil cylinder driving mode, the expanding structure is more direct and simpler; and the oil leakage risk does not exist, maintenance and repair are very convenient, cost is low, and control is direct, simple and convenient.

The invention discloses an internal tooth powerful gear honing machine machining tooth direction adjusting method and device and a gear honing machine. The adjusting method comprises the steps that the tooth direction error and the taper error of a honing wheel of the gear honing machine and a to-be-machined gear workpiece are determined, a honing wheel frame is rotated to rotate around a tool rest stand column, and the meshing angle of the honing wheel and the gear workpiece is changed for tooth direction compensation; the tool rest stand column is rotated around the machine body of the gear honing machine, the angle of the tool rest stand column is changed to adjust the angle of the gear workpiece, and taper compensation is conducted; and finally finishing the adjustment of the machining tooth direction of the gear honing machine. By controlling the rotation amount of the honing wheel frame and the tool rest stand column, the tooth direction error and the taper error between the gear workpiece and the honing wheel are compensated, the gear workpieces in different tooth directions are machined under the condition that the honing wheel is not trimmed, the material cost and the time cost are reduced, and the machining efficiency is improved.

The invention relates to a honing device (1) for processing tapered rollers (2), comprising two honing rolls (3, 4), which are in parallel with one another and are provided for the placement of tapered rollers (2), and a honing stone (10), which engages between the honing rolls (3, 4) and is provided for processing the tapered rollers (2). The honing rolls (3, 4) have threaded profiles (5, 6) which are designed for conveying the tapered rollers (2) and are formed such that the centre axes of the tapered rollers (2) conveyed in the feed direction (VR), i.e. in parallel with the longitudinal direction of the honing rolls (3, 4), lie in a common plane which is parallel to the axes of rotation of the two honing rolls (3, 4) and, in the course of conveying in the feed direction (VR), undergo a pivoting movement within the common plane. The common plane is arranged in parallel with a reference plane in which the axes of rotation of the two honing rolls (3, 4) lie.

The invention belongs to the technical field of connecting rod machining, and discloses a method for improving the honing machining cylindricity of a connecting rod, and the method comprises the following steps: S1, optimizing honing machining parameters; s2, a workpiece clamping mode is improved; s3, selecting an improved honing tool; s4, enhancing the control of the cooling liquid system; s5, monitoring and real-time feedback in the machining process are enhanced; s6, earlier-stage treatment of the workpiece is enhanced; and S7, adopting a dynamic compensation technology. A special flexible clamp and supporting points in reasonable layout are adopted for clamping and supporting the workpiece, the stability of the workpiece is greatly enhanced, the deformation problem in the machining process is avoided, meanwhile, a high-performance honing stone and an optimized cooling liquid system are selected, the grinding effect and the heat management capacity are further improved, and the machining efficiency is improved. By means of the method, powerful guarantee is provided for high-precision machining, by means of implementation of the comprehensive measures, the machining quality of the connecting rod is greatly improved, and the controllability and stability of the production process are remarkably enhanced.

The invention discloses a hydraulic drive type honing head structure, and belongs to the technical field of honing heads, the hydraulic drive type honing head structure comprises a connector, a tool rest, a cutting edge and an expansion mechanism, the end of the connector is provided with a liquid inlet channel arranged along the axis of the connector in a penetrating mode, and the expansion mechanism comprises a drive sliding rod, a drive reset piece and a cutting reset piece; a driving sliding groove is formed in the end, facing the connector, of the tool rest, and when the driving sliding rod slides in the direction away from the connector, the cutting edges move in the axis direction away from the tool rest. A flowing channel is formed in the end, facing the connector, of the driving sliding rod, a communicating hole communicating with the flowing channel and the driving sliding groove is formed in the free end, away from the connector, of the driving sliding rod, and a nozzle communicating with the driving sliding groove is formed in the free end, close to the cutting edge, of the tool rest. The honing device has the effects that precise coverage of cutting fluid in a cutting area is conveniently achieved in the honing machining process, and the honing machining quality is guaranteed.

The invention relates to a machining method of a high-precision thin-walled pipe, which belongs to the technical field of thin-walled pipe machining and comprises the following steps: preparing a to-be-machined pipe fitting, respectively carrying out rough turning on the outer circle and the end face of the to-be-machined pipe fitting, and carrying out rough boring and fine boring on an inner hole in sequence; the to-be-machined pipe fitting is assembled on a lathe, multiple sections of annular grooves formed at intervals are turned in the axial direction of the to-be-machined pipe fitting, and the axial length of each annular groove is smaller than the length of the honing head; the to-be-machined pipe fitting is clamped with the outer circle of the to-be-machined pipe fitting as the standard, and the inner hole is axially honed to the designed size through a honing head; and the to-be-machined pipe fitting is assembled on a lathe, the annular flange arranged between every two adjacent annular grooves is selected to be subjected to axial turning and material removing, and the thin-wall pipe fitting is obtained. The problem that the rigidity of a thin-walled structure is insufficient in the machining process is effectively solved, the follow-up finish machining difficulty caused by deformation is reduced, finally the form and location tolerance requirements of coaxiality, end face perpendicularity and the like of a workpiece can be met, and the machining qualification rate and the process stability of the high-precision thin-walled pipe are improved.

The present invention relates to the technical field of integrated boring and honing machine tools, and specifically to an intelligent integrated boring and honing machine tool for differential case processing, which effectively solves the problems of being unable to quickly change the boring and honing modes, being unable to protect non-working tools during use, and being unable to perform multi-directional positioning of the housing; the machine tool comprises a machine tool body, a guide frame is fixedly connected to the lower side wall of the machine tool body, a support frame is fixedly connected to the middle part of the upper end of the guide frame, a positioning assembly is provided in the support frame, a differential case is provided in the middle of the positioning assembly, and two left-right symmetrical protective shells are slidably connected to the upper end of the guide frame; the present invention can utilize the cutter disc to integrate the boring tool and the honing tool by arranging a cutter assembly, a rotating assembly and a cutter disc, the cutter assembly and the rotating assembly cooperate, and the tool is automatically switched and rotated by motor drive, without the need for manual replacement of the machine tool, reducing the time consumption of mode switching, realizing integrated boring and honing processing, and improving processing efficiency.

The utility model relates to the technical field of clamps, and discloses a gear honing clamp which comprises a clamp body and a workpiece body, the workpiece body is arranged in the clamp body, an inclined end face is arranged at one end of the clamp body, an outer sleeve frame is arranged at the other end of the clamp body, and a connecting bolt is arranged between the clamp body and the outer sleeve frame for connection. A pull rod is fixedly connected into the outer sleeve frame, an inner sleeve frame is fixedly connected into the clamp body, a limiting spring is fixedly connected into the inner sleeve frame, the workpiece body is centered and radially positioned through cooperation of the floating tip and the limiting spring, and the workpiece body is connected with the pull rod of an external machine tool through the pull rod. According to the clamp, the connecting bolt can drive the limiting expansion sleeve to move up and down, the limiting expansion sleeve slides along with the inclined end face of the end of the clamp body, and therefore the workpiece body is clamped and loosened, and the machining precision and the machining quality of the workpiece body are guaranteed in this way.

The hydraulic stand column remanufacturing production line comprises a cylinder body repairing production line and a hydraulic part assembling production line which are arranged on the two sides of a main channel correspondingly. The cylinder body repairing production line comprises a process joint welding area, a raw material storage area, a repairing line raw material warehousing area, an outer circular surface repairing area, an inner circular surface repairing area, a honing buffer area, a deep hole honing area and a process joint cutting area which are arranged in sequence; the hydraulic part assembly production line comprises an assembly line raw material warehousing area, an assembly line material storage area, a cylinder body cleaning area, an assembly area A, an assembly area B and an assembly finished product storage area which are sequentially arranged. Workpieces are transferred through the truss manipulator and the AGV. Automatic surface repairing operation and automatic assembling operation of the heavy-weight cylinder workpiece can be automatically achieved, the automation degree is high, the labor cost can be greatly saved, the working efficiency and the production efficiency are improved, and meanwhile the assembling quality can be effectively guaranteed.

The utility model relates to steering oil cylinder inner hole honing equipment which comprises a base, an installation bottom plate is installed on the upper surface of the base, a plurality of hollow rotating shafts are rotatably installed on the upper surface of the installation bottom plate, a plurality of through grooves are coaxially formed in the hollow rotating shafts in an array mode, first wedge-shaped blocks are arranged in the through grooves, and pressing rings are arranged on the upper sides of the hollow rotating shafts. A plurality of second wedge-shaped blocks are installed on the lower surface of the pressing ring, the second wedge-shaped blocks are matched with the first wedge-shaped blocks, and a fixing mechanism is arranged between the pressing ring and the hollow rotating shaft; and a driving mechanism capable of driving the plurality of hollow rotating shafts to rotate simultaneously is arranged on the upper surface of the mounting bottom plate. The multiple oil cylinders are inserted into the multiple hollow rotating shafts respectively and fixed, then the driving mechanism drives the multiple oil cylinders to rotate at the same time, the first hydraulic cylinder drives the honing head to ascend and descend in the oil cylinders, and therefore the purpose of honing the multiple oil cylinders at the same time is achieved, the working efficiency is greatly improved, and the honing machine meets the machining requirement of batch production.

Provided is a drill that has excellent cutting blade durability and chip discharge. A cutting blade that is provided to a body of the drill has a chisel edge, a first blade, and a second blade. In plan view from a direction along the rotation axis, a boundary section where a boundary between the first blade and the second blade is located has a protruding shape toward the leading side in the rotation direction. The first blade has a first honing surface, the second blade has a second honing surface, and the chisel edge has a third honing surface. In plan view from a direction along the rotation axis, the width of the third honing surface decreases toward the outer periphery of the body, and the width of the first honing surface at the boundary section is smaller than the maximum value of the width of the first honing surface.

The invention provides a diamond cutter for trimming an inner gearing honing grinding wheel. The diamond cutter comprises an annular cutter base body and a diamond layer arranged on the front side of the cutter base body. The diamond layer and the cutter base body are coaxially fixed; and modification helical teeth are arranged on the periphery of the diamond layer, so that end face tooth blades of the modification helical teeth are used for trimming the honing grinding wheel. The diamond cutter is of an outer tooth-shaped bevel gear structure, when meshing finishing is conducted on the honing grinding wheel, material removal is conducted on the honing grinding wheel only by means of the end face tooth blades of the modification bevel teeth on the diamond layer, the modification bevel teeth are provided with modification tooth shapes, tooth shape modification of the honing grinding wheel can be achieved, and the honing grinding wheel is not prone to being damaged. Meanwhile, the gear honing machine tool moves to drive the diamond cutter to realize tooth direction modification on the tooth surface of the honing grinding wheel; due to the fact that the tooth surfaces of the modification helical teeth are not in contact with the tooth surfaces of the honing grinding wheels, the device can be suitable for finishing the honing grinding wheels with different tooth direction modification requirements.

The finishing tool comprises a honing rod finishing unit and a thrust regulation and control unit, a thrust regulation knob in the thrust regulation and control unit is rotated to push a push piece seat to drive a push piece to move in the axial direction along a guide groove of a dresser mandrel sleeve in the honing rod finishing unit, and the honing rod finishing unit is driven to finish finishing of the honing rod. The pushing piece moves in the radial direction of the dresser core shaft sleeve to apply pushing force, and the to-be-dressed honing rod is tightly held by the dressing strip under the radial pushing force effect of the pushing piece; the honing machine is started to control the to-be-finished honing rod to do rotary motion and reciprocating linear motion relative to the precise finishing device of the honing rod, and finishing of the honing rod is completed; by means of the finishing method, dependence on skills of operators in the machining process is reduced, precise finishing of the honing rod can be conveniently and rapidly achieved, the finishing efficiency of the honing rod is improved, the service life is long, and automatic finishing of the honing rod is easy to achieve.

The invention relates to a zirconia ceramic pump body deep hole nanoscale honing process and honing head, and the zirconia ceramic pump body deep hole nanoscale honing process comprises the steps that a composite honing head with a coarse grinding section and a fine grinding section is adopted, and a preset gradient machining process is executed on a target zirconia ceramic pump body; according to the zirconia ceramic pump body deep hole nanoscale honing process and the composite honing head, the gradient machining process is combined with the design of the composite honing head, machining parameters, cooling liquid types and temperature control strategies are dynamically adjusted at different stages, the whole process optimization from rough machining to superfinishing is achieved, and the machining efficiency is improved. The method has the effects of improving the machining efficiency, reducing surface defects and avoiding thermal stress cracks.

The invention belongs to the technical field of sliding component casting, and particularly relates to a cast iron sliding component and a preparation method thereof.The cast iron sliding component is made of silicon solid solution ferrite nodular cast iron, the structure of the material is uniform and single ferrite, and the cast iron sliding component comprises, by mass, 2.90%-3.20% of C, 3.9%-4.35% of Si, smaller than or equal to 0.4% and not larger than 0 of Mn, smaller than or equal to 0.04% and not larger than 0 of P, smaller than or equal to 0.02% and not larger than 0 of S and the balance Fe and inevitable impurities. The alloy comprises the following components in percentage by weight: less than or equal to 0.020% of S but not 0, 0.040-0.060% of Mg, 0.005-0.009% of Sb and the balance of iron and inevitable trace elements. The sliding component has a full-ferrite matrix structure and is good in structure uniformity, machining residual stress is reduced, meanwhile, the thermal expansion coefficient is reduced, nitriding deformation is avoided, annealing heat treatment is not needed after casting knockout and before honing, secondary honing after nitriding is omitted, and the non-uniformity of the final nitriding structure is reduced.

The invention discloses an inner circle surface cluster magnetic jet polishing device and method, and belongs to the technical field of polishing equipment.The magneto-rheological polishing and jet polishing are combined, that is, magneto-rheological polishing liquid is jetted out of a liquid outlet of a cluster magnetic jet polishing head at a high speed under the high-pressure effect, efficient jet rough polishing is conducted on the inner circle surface of a workpiece, and the inner circle surface is polished. And meanwhile, under the action of the magnetic field, the magnetorheological polishing liquid is converted into a magnetorheological polishing pad and a flexible clamping abrasive for secondary fine polishing, so that the problems of workpiece deformation and poor surface quality easily caused by traditional honing and polishing are solved, the defect of low efficiency of single magnetorheological polishing is overcome, and the polishing efficiency and the surface quality are improved. Besides, the device can adapt to workpieces with different diameters by replacing cluster magnetic jet polishing heads and workpiece discs with different sizes, and the machining requirements of the workpieces made of different materials are met by matching with adjustable polishing liquid pressure, flow and rotating speed parameters; due to the expanded double-station design, the machining efficiency is improved, and the machining requirements of high-quality inner circle surface parts are met.

The invention provides an internal gearing numerical control powerful gear honing machine and a using method thereof. The internal gearing numerical control powerful gear honing machine comprises a horizontal lathe bed, and the lathe bed is provided with a Z-axis sliding table conducting Z-direction feeding movement; the machine body is provided with an X-axis honing head sliding table which performs feeding movement in the X direction, the sliding table carries a swinging A-axis crossed-axis angle adjusting shaft, the A-axis crossed-axis angle adjusting shaft is fixedly connected with a B-axis honing wheel main shaft which is of a hollow structure and is provided with a honing wheel cutter, and internal meshing continuous generating rotation is achieved; the machine body is provided with a W-axis tailstock sliding table which performs feeding motion in the Z direction, the W-axis tailstock sliding table is provided with a tailstock adjusting seat which adjusts the position of a tailstock shell in the X direction, the tailstock shell is eccentrically and adjustably provided with a tailstock through a bolt, and the axis of the tailstock is adjusted to be equal to the axis of a honing wheel in height; the lathe bed is provided with a U-axis automatic tool setting device, and the U-axis automatic tool setting device moves in the X direction to achieve automatic control over the tool setting position. The device is high in integration design, compact in structure and easy to maintain; automatic clamping is achieved, and high-precision positioning and machining are achieved; the transmission is efficient, stable, safe and reliable.

The invention provides a multi-station integrated numerical control rotary vertical reaming and honing machine which comprises a base, a stand column fixedly installed on the base, a shell fixedly installed on the outer sides of the base and the stand column, a front door, a side door and a PLC control cabinet arranged on the shell, the front door and the side door are hinged to the shell, and a fixed table is fixedly installed on the inner side of the base. According to the multi-station integrated numerical control rotary vertical reaming and honing machine, each main shaft is independently provided with a second servo motor, so that each main shaft can be independently driven under the driving of the corresponding second servo motor, and corresponding reaming tools and honing tools can be installed in each floating chuck according to the machining sequence; by the adoption of the structure, the numerical control rotary vertical reaming and honing machine can achieve reaming and honing of the parts on a single machine tool, the machine tool is compact in structure, simultaneous machining of multiple parts and multiple shafts can be achieved, the working procedures are concentrated, the machining efficiency is high, and the occupied area is small.

The invention discloses a thin-wall hole honing precision control method, and aims to solve the problems that a thin-wall hole structure is weak in rigidity, is easy to deform during honing and affects the honing precision by analyzing and testing the process of removing a force control feeding honing material. A prediction model of the aperture increment of the thin-wall hole under the action of single honing and a cutting depth formula of the oilstone under different feeding pressures are obtained, and a honing aperture prediction model is established according to the prediction model; carrying out deformation simulation research on the thin-wall hole in force control feeding honing, and correcting the prediction model; and finally, establishing a thin-wall hole honing precision control method in a force control feeding mode on the basis of the hole diameter prediction model, and verifying the thin-wall hole honing precision control method. According to the method, the deformation conditions of different sections of the thin-wall hole in the honing process can be predicted, compensation is conducted according to the deformation conditions, and the honing precision of the thin-wall hole is effectively improved.

To machine at least one portion in a circumferential direction of an inner surface having a circular cross section of a workpiece so as to be recessed more than the other portion with high accuracy in a small number of processes by honing.SOLUTION: A honing method uses a honing machine 1 that includes: a rotatable tool shaft 2; a plurality of grinding stones 4 arranged on the tool shaft 2 so as to advance and retreat in a radial direction and rotating integrally with the tool shaft 2; tapered cones 7 connected to the tool shaft 2 and vertically moving to advance and retreat the plurality of grinding stones 4 in the radial direction; and a tapered cone drive part vertically driving the tapered cones 7. The honing method comprises: creating a timing chart so as to vertically move the tapered cones 7 in accordance with a recess of the inner surface of the circular cross section; and controlling the drive part of the tapered cones 7 in accordance with the timing chart to vertically move the tapered cones 7 while expanding or contracting a diameter of the plurality of grinding stones 4, thereby grinding the inner surface of the circular cross section.SELECTED DRAWING: Figure 1

The oilstone ejecting mechanism for the honing device comprises an oilstone holder, oilstones, a radial expansion unit and piezoelectric ceramics, the radial expansion unit is arranged on the inner side of the oilstone holder, the radial expansion unit and the oilstone holder are coaxially arranged, the oilstones are evenly connected to the oilstone holder in an inserted mode, the inner sides of all the oilstones abut against the radial expansion unit in an elastic mode, and the piezoelectric ceramics are arranged on the oilstone holder. The piezoelectric ceramics are fixed in the oilstone retainer, the piezoelectric ceramics are electrified to deform and enable the radial expansion units to axially displace, and the radial expansion units axially displace and push the oilstones to radially displace. The radial displacement of the oilstone is supplied through piezoelectric ceramic deformation, a complex mechanical transmission structure does not need to be arranged, a complex oil way structure does not need to be arranged either, the overall structural design is ingenious and reasonable, redundancy is avoided, and operation is stable.

The invention relates to the technical field of remanufacturing, in particular to a beryllium bronze piston part inner wall damage repairing method which comprises the following specific steps: S1, defect inspection; s2, preparing an electrode bar; s3, electric spark coating repair is carried out; s4, remelting by a cold welding machine; s5, heat treatment; s6, honing an inner hole; s7, repairing and verifying; according to the method, a method of electric spark coating repairing and cold welding composite repairing is adopted, the problem that an electric spark coating repairing layer is not compact is solved, the problem that wire feeding is difficult in the cold welding inner hole repairing process is solved, the problem that an overlong electrode bar rotating at a high speed shakes in the electric spark coating repairing process is solved by adopting the specially-made electrode bar, and the welding quality is improved. The metallographic phase of the repair layer does not have cracks and incomplete fusion defects, the repair layer is metallurgically bonded with the substrate, and the hardness of the repair layer reaches more than 90% of that of the substrate of the plate.

The double-station vertical gear honing machine comprises a machine body and a honing head assembly arranged in the middle of the machine body, the back side of the machine body is provided with a vertically-arranged stand column, and the stand column extends in the length direction of the machine body; a honing head assembly is arranged on the stand column, the two sides of the honing head assembly are each provided with a honing feeding assembly, each honing feeding assembly comprises a Z-axis supporting plate and an X-axis supporting plate, and the X-axis supporting plates are installed on the stand column in a transverse moving mode through a transversely-arranged X-axis feeding mechanism and can move to the position above the honing head assembly; the Z-axis supporting plate is installed on the X-axis supporting plate in a lifting mode through a vertically-arranged Z-axis feeding mechanism. The Z-axis supporting plate is provided with a gear jacking and clamping mechanism arranged in the vertical direction, and a clamping part of the gear jacking and clamping mechanism extends downwards and is suspended below the Z-axis supporting plate. The device has the advantages of being reasonable in structural design, high in machining efficiency, capable of meeting the requirement for machining precision, capable of reducing cost and the like.