287 results about "Honing" patented technology

The invention relates to a gear machining and treating process. The gear machining and treating process includes the steps that blanking and blank manufacturing are carried out; a gear blank is machined; rough machining and semi-finish machining of a tooth form are conducted, i.e., according to a precision requirement, tooth grooves are cut in the whole blank and a corresponding allowance for finish machining is reserved on the groove side at the same; the gear end is chamfered and burrs are removed; heat treatment is carried out; tooth form machining is carried out on an unfinished product subjected to heat treatment by adopting the method of gear grinding or gear honing or gear lapping again; strengthened shot peening is carried out so as to improve the endurance bending strength and contact fatigue strength of a gear; and cleaning is carried out. Through the gear machining and treating process, the content of retained austenite on the surface of the gear and the thickness of a non-martensite layer on the surface of the gear are reduced; by the adoption of the high-temperature carbon potential changing method, production efficiency is improved; thus, the tissue performance of the tissue surface is greatly improved, and the phenomenon of tooth breakage cannot occur.

In a method for finishing a borehole in a workpiece, particularly for finishing a crankshaft bearing borehole in a cylinder crankcase of an internal combustion engine, a machined borehole is generated based on a prepared borehole, the machined hole has a settable theoretical size, a settable theoretical structure of the inner surface of the borehole and a settable theoretical position of the borehole axis. The method is characterized in at least one high efficient honing operation. A degradation of 0.5 millimeter is generated under the use of a honing tool by the honing of the borehole relative to the diameter of the borehole during the high efficient honing operation. The high efficient honing operation is executed as honing operation such that a shifting of the borehole axis takes place in the direction of the target position by the engine power honing operation.

The invention discloses an air cylinder sleeve finish machining process. The air cylinder sleeve finish machining process adopts a following air cylinder sleeve finish machining treatment device. Theair cylinder sleeve finish machining treatment device comprises a base, a fixing device, clamping devices and a machining device, the fixing device is fixedly installed on the base, and the clamping devices are installed at the two sides of the fixing device; and the machining device is installed on the base and comprises a grinding mechanism, a honing mechanism and a machining power mechanism. The air cylinder sleeve finish machining process adopting the air cylinder sleeve finish machining treatment device comprises the following steps that S1, air cylinder sleeves are fixed; S2, clamping and positioning are carried out; and S3, inner wall treatment is carried out. According to the air cylinder sleeve finish machining process, the air cylinder sleeves of different sizes and specifications can be clamped and fixed through cooperation of the fixing device and the clamping devices, the application range of the air cylinder sleeve finish machining process is enlarged, the machining device can repeatedly conduct grinding and honing work on the inner walls of the air cylinder sleeves at the same time, the working efficiency is improved, and the machining effect is improved.

The invention discloses a honing machine with a function of washing workpieces for a cylinder barrel. The honing machine comprises a machine body and an L-shaped support plate, wherein a first motor is arranged on the left side of the machine body, the right end of a first rotating shaft is connected with a threaded rod, and a movable seat is arranged on the threaded rod; a first hydraulic telescopic rod is arranged on the movable seat, and a connecting plate is arranged at the inner end of the first hydraulic telescopic rod; an inclined plate is arranged below a through hole groove, clampinggrooves are formed in the left side wall and the right side wall of the interior of a first water tank correspondingly, and filter screens are arranged on the clamping grooves; a third hydraulic telescopic rod is arranged at the inner top end of the L-shaped support plate; and a third motor is connected with a third rotating shaft, and the lower end of the third rotating shaft is connected with arolling device. According to the honing machine with the function of washing the workpieces for the cylinder barrel, water in a second water tank can be sprayed out through a spray pipe under the action of a second water pump, the cylinder barrel in the honing machining process can be washed, and the situation that due to chips generated by honing machining of the cylinder barrel, the precision ofmachining the inner wall of the cylinder barrel is influenced is reduced.

The invention discloses a honing machining method for inner hole net patterns of an aero-engine actuator cylinder. The method comprises the following steps that 1, a tool is taken and installed on a honing machine; 2, a to-be-machined part is taken, placed on the tool and aligned, and then the aligned to-be-machined part is subjected to flexible press fitting and stabilized on the tool; 3, the honing machine is operated to conduct crude honing machining and fine honing machining on the to-be-machined part in sequence, a honing technology is adopted for uniformly machining deep grooves and small platforms, cross grain surfaces meeting the technological requirement are generated, and during machining, honing cooling liquid is adopted for cooling. Through the mode, the honing machining methodcan improve the sealing performance of the aero-engine actuator cylinder, and the service life is prolonged.

The invention relates to a high-precision internal grinding processing procedure. A clamp which is used for a honing procedure of a technology of the high-precision internal grinding processing procedure is as shown in the figure that a base (1) and a clamp body (7) are connected in a fastening mode through bolts, a lower rubber sleeve (2) and an upper rubber sleeve (5) are respectively installed on a lower bush (3) and an upper bush (6), and meanwhile a closed chamber is formed by a space ring (4) and a gland (8), and a cylinder sleeve (9) is placed in inner chambers of the lower rubber sleeve (2) and the upper rubber sleeve (5). Honing adopts rough honing and fine honing. The rough honing adopts an adamas sanding belt, wherein the mesh number of the sanding belt is 180, and machining pressure of the sanding belts is 1.4 Mpa. The fine honing adopts a double feeding honing head. The mesh number of an adamas sanding belt of the double feeding honing head is 150, and machining pressure of the adamas sanding belt of the double feeding honing head is 0.8-1.0 Mpa. A particle size of a silicon carbide sanding belt adopted by the double feeding honing head is 400, and honing pressure of the silicon carbide sanding belt adopted by the double feeding honing head is 0.5 Mpa. Space cylinder sleeve machining is alternate machining of corotation and inversion, and parameters of inner bore cobwebbing are kept that Rpk is smaller than 0.25 micrometer, Rvk is equal to 1.0-2.0 micrometers, and Rk is equal to 0.4-1.2 micrometers.

The invention relates to a self-limited universal honing rod comprising an outer pipe, a honing head, a lower joint, a push rod, a supporting rod and an upper joint, wherein the honing head is connected with one end part of the outer pipe, the lower joint is fixedly connected with the other end of the outer pipe, the push rod is arranged in the outer pipe, the supporting rod is connected with the push rod, and the upper joint is sleeved on the supporting rod; the honing rod further comprises one or more cross-shaped blocks, a connection pipe and a limiting sleeve, wherein the one or more cross-shaped blocks are sleeved on the push rod, the connection pipe is fixedly sleeved out of the one or more cross-shaped blocks, the limiting sleeve is sleeved out of the connection pipe, and the two end parts of the limiting sleeve are respectively connected with the upper joint and the lower joint. According to the self-limited universal honing rod disclosed by the invention, the cross-shaped blocks are sleeved on the push rod, so that the honing rod can realize multidirectional floatation; through a space between the connection pipe and the limiting sleeve, the floating displacement of the honing rod can be controlled within the certain range, so that the self-limiting function of the honing rod is realized, and a complex guiding system can be saved; and the honing rod has the advantages of novel and compact structure, simple manufacturing and low machining cost.

The invention belongs to the technical field of hydraulic cylinders, and particularly relates to a dismounting and honing device for a hydraulic cylinder. The dismounting and honing device comprises acylinder dismounting machine and a cylinder barrel honing machine. The cylinder dismounting machine comprises a working platen frame and a platen support frame, the working platen frame is erected onthe platen support frame, a first cylinder used for driving the working platen frame to move is arranged on the platen support frame, a hollow turntable is arranged on the working platen frame, a positioning mechanism is arranged on the turntable, two second cylinders used for driving the turntable to rotate are arranged on the working platen frame and oppositely arranged on the two sides of theturntable, the working platen frame is further provided with a lifting mechanism and a stand column, the stand column is provided with a track plate, a lifting head is in up-down sliding connection with the track plate, the stand column is provided with a third cylinder used for driving the lifting head to move up and down, the lifting head is provided with a hydraulic motor, and the output end ofthe bottom of the hydraulic motor is provided with a buckle cover.

The invention provides an extrusion honing device for a profile shaping mold, and belongs to the field of design and manufacturing of extrusion molds. The extrusion honing device consists of shaping mold templates, an upper cover plate, a lower cover plate and corresponding adjustable base plates which are assembled through bolts. The shaping mold templates are part of parts of a shaping mold component; a shaping mold part generally consists of 2-6 subassemblies, namely consist of 2-6templates, and one or two same ones are taken as component parts of a clamp; the clamp and the upper cover plate, the lower cover plate and the corresponding adjustable base plates are matched to form a closed combined clamp with a gap of 5-10mm; the gap of the clamp can be controlled by only replacing the corresponding base plates according to the change of a honing object.

The invention provides a hydraulic integrated oil cylinder barrel and a machining method thereof. The machining method comprises the steps of workpiece blanking and rough turning machining, primary welding and flaw detection after welding, boring and grinding combination and fractional finish turning, secondary welding and flaw detection after welding, center hole punching and end face turning and grinding, third welding and flaw detection after welding, pressure resistance testing and follow-up treatment. On the premise that special tools, tools and equipment are not needed, an existing numerical control lathe, an existing deep hole boring machine, an existing deep hole honing machine tool and an existing universal cylindrical grinding machine are directly utilized, the technological process is reasonably arranged, technological parameters are determined, the machining precision of workpieces is reliably guaranteed, machining deformation is greatly prevented, and the flatness of the connecting plane of the cylinder bottom valve seat and the control valve set is guaranteed.

A honing machine for honing a bore in a workpiece comprises a support structure fixed to the machine and at least one honing unit which is mounted on the support structure and which has a spindle unit (150) in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive (450) and, at a tool-side end (153), has a device for the fastening of an expandable honing tool. The honing machine furthermore comprises a stroke drive for generating a stroke movement of the spindle unit (150) and an expansion drive (550) for expanding the honing tool, wherein the expansion drive is coupled to an advancing rod (460) which runs in the interior of the spindle shaft. The spindle unit (150) has a spindle unit housing (310) which has a first housing portion (310-1) for accommodating the rotary drive (450) and a second housing portion (310-2) for accommodating the expansion drive (550). The rotary drive (450) is accommodated in an exchangeable first cartridge (400) and the expansion drive (550) is accommodated in a second cartridge (500) which is exchangeable independently of the first cartridge (400), wherein the first cartridge (400) is introducible into the first housing portion (310-1) and the second cartridge (500) is introducible into the second housing portion (310-2).

The invention relates to a novel high-accuracy efficient vertical honing machine which comprises a working table. The novel high-accuracy efficient vertical honing machine further comprises a plurality of honing assemblies, a servo rotation disc and a first motor, the honing assemblies can conduct horning at the same time, the servo rotation disc is arranged on the working table and provided with a plurality of through holes where workpieces to be machined are fixed, the first motor is used for driving the servo rotation disc to rotate, and the number of the through holes is larger than the number which is two times larger than the number of the honing assemblies. According to the novel high-accuracy efficient vertical honing machine, the honing assemblies are arranged, the through holes where the workpieces to be machined are fixed are formed in the servo rotation disc, the multiple workpieces to be machined can be machined by the honing machine at the same time, the novel high-accuracy efficient vertical honing machine is compact in structure, the machining efficiency is improved, and the modular design can be achieved.

A plurality of grind-stone-mounts 12 each having a grind stone 15 on its outer side are attached to a holder 11 of a honing head 10 expandably along a radial direction. Each of the grind-stone-mounts 12 is provided with a support part 13 disposed inside along the radial direction, and a grind part 14 including the grind stone 15 and disposed outside along the radial direction. The grind part 14 is swingably attached to the support part 13 through one or more spring members 16 disposed at intervals along an axial direction of the holder 11.

The invention discloses a honing machining method for a carburizing hole of a tappet guide sleeve of an aero-engine. The honing machining method comprises the following steps that the carburizing hole of the tappet guide sleeve is machined by adopting a numerical control boring cutter to remove the allowance to 0.2-0.3 mm, the tappet guide sleeve is mounted on a honing machine, the carburizing hole of the tappet guide sleeve is aligned, the carburizing hole is honed for four times until the surface smoothness Ra of the carburizing hole is less than or equal to 0.02, the four times of honing machining comprise rough honing machining, semi-fine honing machining, fine honing machining and super-fine honing machining, and honing machining parameters are optimized, so that the carburizing hole of the tappet guide sleeve does not have burn and crack defects, and the internal surface smoothness of the carburizing hole of the tappet guide sleeve is close to the level of a mirror surface. The honing machining method for the carburizing hole of the tappet guide sleeve of the aero-engine has the advantages of being high in machining efficiency, even in grinding force, high in cooling frequency, sufficient in cooling and free of burn and crack defects, and the surface smoothness of the inner hole is close to the level of a mirror surface.

The invention relates to a method for producing bearing components by means of a production line (1, 1', 1a, 1b) which comprises at least one grinding machine (2), at least one honing machine (3), atleast one cleaning unit (4) and at least one transport unit (5), wherein each bearing component is transported along the production line (1, 1', 1a, 1b) by means of the at least one transport unit (5), wherein at least one grinding process of each bearing component occurs by means of the at least one grinding machine (2), at least one honing of each bearing component occurs by means of the at least one honing machine (3) and at least one cleaning of each bearing component occurs in the at least one cleaning unit (4). A vertical grinding machine (2a) is used as at least a grinding machine (2),wherein each bearing component passes along the production line (1, 1', 1a, 1b) lying in a constant horizontal plane (E). The invention further relates to a production line (1, 1', 1a, 1b) and to a production system (100) formed from at least two production lines (1a, 1b).

The invention relates to a honing feed expansion tool mechanism, which comprises an expansion tool mandril and a driving device, wherein the expansion tool mandril extends along the vertical direction and can rotate around the central axis of the expansion tool mandril, and the driving device is used for controlling the expansion tool mandril to move along the vertical direction; the driving device comprises a power source, a lead screw and a push plate, wherein the lead screw extends along the vertical direction and is driven to rotate by the power source, and the push plate is sheathed on the lead screw and can move along the vertical direction with the rotation of the lead screw; the upper part of the expansion tool mandril is rotatably connected with the push plate, and can move along the vertical direction together with the push plate. The honing feed expansion tool mechanism disclosed by the invention has the beneficial effects that the structure is reasonable, the accurate operation of all components can be guaranteed better, and quantitative feed control, constant-pressure feed control and constant-pressure quantitative feed control are realized; the honing feed expansion tool mechanism disclosed by the invention is integrated and modular in integral structure, easier to process and assemble, light on the whole, high in precision and strong in universality.

The invention discloses a laser honing process. Through laser honing, grooves with certain densities and depths are formed in the surface of a workpiece, so as to be convenient for lubricating oil storage and flowing, therefore, the abrasive resistance of a part is enhanced. The laser honing process comprises steps of roughening mechanically, determining a laser grinding track according to the process requirements of the part, determining the parameters of a laser, and carrying out laser honing and quality inspection. The surface roughness of the part mechanically processed is 2 to 3 mum. For determining the laser grinding track, the linear motion speed and the workpiece rotating speed of the laser are determined according to the sizes of the grooves. The grooves are 10 to 30 mum in width and 8 to 12 mum in depths, and the distance between two adjacent grooves is 1 mm. The power of the laser is 500W to 4KW, the spot diameter is 5 to 9 mum, the defocusing amount is 0 mm, the pulse frequency is 5 kHz to 10 kHz, and the protective gas flow is 4L/min to 5 L/min. According to the laser honing process, the grooves with different grains and different intensities are formed in the surface of the part, the processing quality is stable, and the processing accuracy is high, therefore, the service life of the part can be effectively prolonged.