496 results about "Hobbing" patented technology

The invention discloses a soil-rock composite formation hob fracture avoidance method based on FEM-DEM coupling, and relates to the technical field of tunnel and underground engineering, and the method comprises the steps: building a hob cutting model based on a finite element-discrete element coupling method; generating a soil rock calibration parameter according with the input of the hob cutting model; calculating a cutting force curve of hob impact under any working condition by using the hob cutting model, and extracting the maximum value of the cutting force curve as a load peak value; extracting a cutter ring stress peak value corresponding to the moment of the load peak value; and calculating the current comprehensive equivalent stress of the hobbing cutter ring based on the limit stress, comparing the comprehensive equivalent stress with the dynamically matched yield strength threshold, and judging the risk level of the hobbing cutter ring. According to the method, refined simulation of the whole rock breaking process of the hobbing cutter in the soil-rock composite stratum is achieved, the transient impact load peak value and the induced cutter ring limit stress distribution are captured, and the fracture risk identification precision is remarkably improved.

The invention relates to the technical field of gear machining, and discloses adjustable precision gear turning equipment which comprises a device body, and the device body comprises a hob and a workbench; and the dynamic following type supporting unit comprises a rotating disc connected to the centering connecting column through a bearing, multiple sets of supporting rods are annularly arranged on the rotating disc, a supporting plate is installed at the ends, away from the rotating disc, of the supporting rods, and multiple sets of edge supporting assemblies are arranged on the supporting plate. By arranging the dynamic following type supporting unit, the supporting plate and the edge supporting assembly of the dynamic following type supporting unit can provide active upward supporting force for the bottom face of the gear to be machined, and during hobbing, the supporting force can actively offset downward cutting force generated by a hobbing cutter to form balance, so that bending deformation of a workpiece is directly prevented, and the service life of the gear to be machined is prolonged. Errors such as tooth shape concave and tooth direction inclination of the machined gear are avoided, and the machining precision and the surface quality of the gear are remarkably improved.

The invention relates to a hob rock breaking identification method, device and system based on a semi-analytical method, and relates to the technical field of shield cutter rock breaking. The method comprises the following steps: acquiring a cutter model and an initial rock model of the shield tunneling machine; simulating a scene in which the cutter cuts the rock by adopting the cutter model and the initial rock model to obtain a contact area of the cutter model and the initial rock model; dispersing the rock model in the first area into cubic units; assigning material attributes to the cube units, and calculating influence coefficients of the cube units; updating the load value of the cubic unit according to the influence coefficient, and calculating the total stress of the cubic unit according to the load value; determining an equivalent characteristic strain value of the first rock model and a convergence state of the equivalent characteristic strain value; and under the condition that the convergence state meets a preset condition, determining the number of damage units in the first rock model, and determining the damage degree of the first rock model according to the number. According to the scheme, the accuracy of pipeline rock breaking identification is improved.

The invention discloses a machining method for a sun gear of a planetary reducer. The machining method comprises the steps of gear blank machining, spline broaching, gear hobbing, tooth profile chamfering, carburizing and quenching, external grinding, hole turning, flat grinding, gear grinding and detection. An outer circle recognition groove is machined in the outer circle of the gear blank and close to the near end face A; gear broaching is conducted with the near end face A as the positioning reference; a spline taper mandrel penetrates into the spline hole, the outer circle of the sun gear top is ground through gear side positioning, and the near end face A is ground in a leaning mode; the outer circle of the ground tooth crest is clamped, the near end face A is leveled, a spline inner hole is turned, a far end face B far away from the outer circle recognition groove is turned, and then the near end face A is flatly ground with the turned far end face B as the reference; during gear grinding, the far end face B and the spline inner hole are used as positioning references; during detection, the detection direction is consistent with the positioning direction of the grinding teeth, and the far end face B faces downwards. By the adoption of the technical scheme, it is guaranteed that the gear precision of the sun gear reaches the sixth level, and the use requirements of customers are met.

The invention relates to the technical field of raise-boring hob machining, in particular to raise-boring hob automatic tooth pressing machining equipment and a technological method.The raise-boring hob automatic tooth pressing machining equipment comprises a press body, and the press body is provided with a press-fitting assembly, a lifting driving source for driving the press-fitting assembly to ascend and descend so as to press-fit hob teeth and a workbench for fixing a hob body; the pressing machine body comprises a driving part for driving the hob body to rotate, the pressing machine body is provided with a horizontal driving assembly for driving the hob body to move in the horizontal direction, an arc-shaped sliding groove is formed in the pressing machine body in a sunken mode, and the bottom of the workbench is matched with the arc-shaped sliding groove in shape and is in sliding fit with the arc-shaped sliding groove. The press body is provided with a rotation driving assembly which drives the workbench to rotate so that the central axis of one mounting hole in the hob body can coincide with the central axis of the press-fitting assembly. Through cooperation of the driving part, the horizontal driving assembly and the rotating driving assembly, the angle and the position of the hob body are flexibly adjusted, and the tooth pressing efficiency and precision are improved.

The utility model belongs to the technical field of shoemaking, and discloses an open mill with a slicing mechanism, which comprises a support, a compression roller mechanism rotatably arranged on the support and a first mounting shaft fixedly arranged on the support, and further comprises the slicing mechanism which comprises a mounting frame assembled on the first mounting shaft and a hob rotatably connected to the mounting frame, and a blade matched with the cutting shape is arranged on the surface of the hobbing cutter and is tangent to a compression roller of the compression roller mechanism. The film cutting device can continuously and quickly cut films in different shapes, and is high in working efficiency and high in safety.

The invention belongs to the technical field of mechanical engineering and intelligent manufacturing, and discloses a high-precision gear hobbing quality online detection and control system and method. The system comprises a gear hobbing regulation and control module used for driving a hobbing cutter and a workpiece to perform repeated cutting; the multi-light-source visual acquisition module is used for adjusting the position of a multi-light-source visual acquisition probe and acquiring a multi-modal image in a precise gear machining process in real time; the image processing module is used for processing the multi-modal image to generate a multi-scale feature vector; the quality prediction module is used for processing the multi-scale feature vector to generate a geometric precision prediction value and a surface roughness prediction value; and the self-adaptive control module is used for dynamically adjusting the machining parameters of the hob motion control system and the workpiece rotation control system according to the geometric precision predicted value and the surface roughness predicted value, and triggering rejection processing when the geometric precision predicted value exceeds a preset tolerance range or the surface roughness predicted value exceeds a preset threshold value.

The utility model belongs to the technical field of high-precision grinding machining of mandrels of large extrusion granulation units, and discloses a novel fan-shaped supporting device for an involute spline mandrel. Locking pressing plates are installed on the two sides of the bottom of the fan-shaped supporting body and located on the sliding rails. The side supporting adjusting device adjusts the telescopic amount of the side supporting column. The lower supporting adjusting device adjusts the telescopic amount of the lower supporting column. The other end of the lower supporting column is connected with a fan-shaped supporting tile body; the fan-shaped supporting tile body is made of nylon; the fan-shaped arc of the fan-shaped supporting tile body is in an interval; one end of the spherical positioning rod is connected with the fan-shaped supporting tile body, and the other end of the spherical positioning rod is clamped in two semicircular grooves in the 10-degree inclined face of the front end of the side supporting column. The utility model solves the problem that the high-precision involute spline mandrel cannot realize high-precision and stable machining support after hobbing, realizes the high-precision grinding effect, and comprehensively solves the problem of high-precision grinding of high-precision involute spline parts.

The invention discloses a numerical control gear hobbing machine tooth thickness compensation method and device and a numerical control gear hobbing machine. The numerical control gear hobbing machine tooth thickness compensation method comprises the following steps that the first angle variable quantity of an encoder and the common normal variable quantity of a test workpiece which are determined and obtained through a test are obtained; calculating the radius according to the first angle variable quantity and the common normal variable quantity of the test workpiece; in response to a received heat engine cutting instruction, acquiring an angle value of the encoder when the machine tool is at a zero position, an X coordinate value of the machine tool in a heat engine state and an angle value of the encoder at the position, and calculating to obtain a second variable quantity of the encoder on an X axis in the heat engine state; according to the second variable quantity, the Z-axis coordinate of the tooth width center of the workpiece to be machined and the Z-axis coordinate of the gear rack meshing point, a cutting compensation value is obtained through calculation; and compensating the X axis of the cutter according to the cutting compensation. The cutting compensation amount can be calculated, the compensation precision is high, and time and labor are saved.

The invention relates to the technical field of gear hobbing machines, and provides a micro-gear hobbing machine which comprises a machine body, a workbench, a stand column and a hob, the workbench is movably arranged on the machine body, the stand column is fixedly connected to the workbench, the micro-gear hobbing machine further comprises a clamping base, a positioning block, a tool rest, a heat preservation cover, a spraying pipe and a camera, the clamping base is rotatably arranged on the workbench, and the hob is fixedly connected to the positioning block. The positioning block is arranged on the stand column in a liftable mode, the positioning block and the clamping base are coaxially arranged, the tool rest is arranged on the lathe bed in a liftable and rotatable mode, a driving shaft is arranged on the tool rest in a rotatable mode, the hob is connected with the driving shaft through a limiting assembly, the heat preservation cover is fixedly connected to the tool rest, a gear workpiece is located in the heat preservation cover, and the spraying pipe is installed at the top of the heat preservation cover. The camera is installed on the side wall of the heat preservation cover and used for shooting images of the gear workpiece. By means of the technical scheme, the technical problem that in the prior art, when a gear hobbing machine is used for machining a micro gear, the machining precision requirement of the micro gear is difficult to meet is solved.

The invention relates to the technical field of gear hobbing devices, in particular to a gear hobbing device for gear machining and capable of achieving dual cooling and scrap removal, the gear hobbing device comprises a box body, a discharging device arranged in the box body, a filter screen disc arranged in the box body and a rotating part arranged in the box body, the rotating part comprises a horizontally-arranged rotating shaft, and the rotating shaft is of a hollow structure; the two ends of the rotating shaft are rotationally installed on the corresponding side walls of the box body, and U-shaped grooves are formed in the rotating shaft around the center axis of the rotating shaft at equal intervals. The rotating part further comprises a rolling cutter, the rolling cutter is installed on the rotating shaft, and a plurality of through holes are formed in the rolling cutter around the center axis of the rolling cutter at equal intervals; a first servo motor is fixed to one side of the box body, and the output end of the first servo motor is fixedly connected with the end of the rotating shaft. According to the hobbing cutter, cooling liquid can cool the hobbing cutter from the interior of the hobbing cutter, and meanwhile the cutting position can be cooled. The problem that cooling cannot be conducted from the interior of the hobbing cutter is solved.

1. The name of the design product: lathe tap hobbing pattern tool. 2. The use of the design product: lathe tap hobbing pattern tool is used to hob the straight line or mesh pattern on the surface of the workpiece blank on the lathe, which is used in the scene where the small rigid weak lathe cannot use the knurling tool to process the pattern. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other situations that need to be explained: the use state reference figure 1 to the use state reference figure 3 is the use state reference figure of using the lathe tap hobbing to hob the straight line or mesh pattern on the surface of the workpiece blank on the lathe.

The utility model belongs to the field of machine tool machining, relates to a hobbing cutter holder cutter shifting structure, and introduces a gear rack transmission mechanism to replace a traditional ball screw transmission mode. According to the design, the precise speed reducer drives the gear to rotate, and the gear is tightly meshed with the rack fixed on the carriage, so that the precise tool channeling action of the tool rest is realized. According to the structure, the layout is more compact, the distance between the hob and the rotation face of the tool rest is effectively shortened, the rigidity of the tool rest is remarkably improved, vibration and deviation in the machining process are reduced, the machining precision is improved, and the service life of the tool is prolonged. Meanwhile, due to the flexibility of gear and rack transmission, the layout of the tool rest tool channeling structure is more diversified, the overall design is simplified, and the production cost is reduced. In addition, the structure further has the advantages of being easy and convenient to maintain, small in abrasion and the like, and downtime and maintenance cost are further reduced.

The utility model relates to a single-servo multi-position rolling cutting punching device which comprises a rack, a servo power input device and a rotatable rolling cutting shaft are arranged on the rack, an output shaft of the servo power input device is in transmission connection with the rolling cutting shaft through a power transmission mechanism, a plurality of cutter modules are arranged on the rolling cutting shaft, and the cutter modules are arranged on the rack. The cutter module comprises a protruding cutting edge. According to the utility model, single servo control and synchronous belt transmission are realized, the control is simple, the structure is compact and light, the transmission is stable, and no noise is generated, after the servo power input device is started, the servo power input device transmits power to the hob shaft through the power transmission mechanism, and the rotating speed of the servo power input device is controlled by calculating the distance from a blade to the axis of the hobbing shaft, so that the hobbing efficiency is improved. And when the cutter module cuts the packaging film, the speed can be completely consistent, so that the phenomena of non-uniform rolling holes and tearing are avoided.

The invention belongs to the technical field of combined machining, and particularly relates to a turning, rolling and longitudinal cutting combined machine tool which comprises a turning part, a hobbing part, a cooling mechanism, a sweeping mechanism and a control mechanism. The turning part comprises a rack, a turning tool rest and a three-jaw chuck, the turning tool rest is arranged above the rack in a sliding mode, and the three-jaw chuck is rotationally arranged on the side wall of the rack; the hobbing part comprises a mounting frame, a mounting sleeve and a hobbing cutter, the mounting frame is rotationally arranged above the rack, and the hobbing cutter is rotationally connected with the mounting frame through the mounting sleeve; the cooling mechanism is used for spraying cooling liquid; the cleaning mechanism comprises a mounting cover and a mounting strip, the mounting cover is elastically mounted below the mounting frame, and the mounting strip is used for mounting bristles and fixedly mounted on the outer wall of the mounting cover; the control mechanism comprises a jacking block and a transmission block, the jacking block is fixedly mounted on the outer wall of the mounting sleeve, and the transmission block is fixedly mounted on the outer wall of the mounting cover; through cooperation of the structure, the service life is prolonged while the production efficiency is improved.

The utility model provides an anti-rotation, stable, low-cost and small-modulus shaft gear hobbing anti-rotation tool, during hobbing, through the matching relationship of a backing semicircular pin and an arc groove of a sun gear, the arc groove of the sun gear is aligned with the backing semicircular pin and is placed in the backing semicircular pin, and the center head of the tail center is used for jacking an inner hole of the sun gear, so that the sun gear can be clamped.

The invention discloses a numerical control gear hobbing machine for bevel gear outer tooth machining, and relates to the field of gear hobbing machines, the numerical control gear hobbing machine comprises a lathe bed, a workpiece main shaft unit and a cutting shaft unit, the workpiece main shaft unit comprises a workpiece main shaft and a tip, the cutting shaft unit comprises a cutting shaft, a feed moving shaft and a rotation adjusting table, the cutting shaft is provided with a hob, and the cutter moving shaft is provided with a cutter. The rotary adjusting table is used for adjusting the angle of the cutting shaft, the feed moving shaft is used for driving the hob to move and feed, a baffle is fixedly arranged on the rotary adjusting table, and the tangential direction of a cutting point of the hob faces the baffle; the baffle is made of ferromagnetic metal, and a plurality of electromagnets are arranged on the face, away from the hob, of the baffle. According to the bevel gear hobbing machine, the chip splashing range in the bevel gear machining process can be reduced, and therefore the cleaning work of the gear hobbing machine is reduced.

The utility model discloses a gear hobbing machine bearing device which comprises a bearing table, an expansion fixing mechanism and a clamping limiting mechanism, the expansion fixing mechanism is installed on the bearing table and comprises a follow-up gear, a follow-up rotating disc is fixedly installed on the follow-up gear, a plurality of follow-up sliding blocks are installed on the follow-up rotating disc in a sliding mode, and the clamping limiting mechanism is installed on the follow-up rotating disc. The follow-up sliding block is provided with an expansion clamping arm, a clamping limiting mechanism is installed on the bearing table, an expansion positioning shaft is fixedly installed on the bearing table and penetrates through the follow-up gear and the follow-up rotating disc, and a limiting sliding groove matched with the follow-up sliding block is formed in the follow-up rotating disc. According to the bearing device of the gear hobbing machine, due to the arrangement of corresponding mechanisms, the bearing device can adapt to gears with more inner diameters, the gears with different inner diameters can be better clamped and fixed, meanwhile, the displacement probability of the gears in the machining process is reduced, the influence on the machining precision of the gear hobbing machine is reduced, and the service life of the gear hobbing machine is prolonged. And the influence on the yield of the gear hobbing machine is also reduced.

The utility model provides a combined processing machine tool for external thread grinding and gear hobbing of shaft parts, which comprises a machine tool body, an external thread grinding mechanism, a gear hobbing mechanism, a driver, a sliding frame and a pair of head and tail frames, each head and tail frame is provided with a servo motor and a clamping device, and the clamping devices are driven by the servo motors to rotate. The pair of head and tail frames are oppositely arranged, the two ends of the shaft part are clamped and fixed through the clamping devices correspondingly, the positions, away from each other and close to each other, of the pair of head and tail frames in the axial direction of the shaft part are adjustable, and at least one head and tail frame is provided with a driver. The driver can drive the pair of head and tail frames to move in the directions away from each other and close to each other in the axial direction of the shaft part. According to the utility model, the shaft part is subjected to external thread grinding and gear hobbing in the state of being axially stretched, so that central holes do not need to be pre-processed at the two ends of the shaft part, meanwhile, the shaft part is prevented from being unstable and deformed, and the combined processing precision is ensured.

The invention belongs to the technical field of hob replacement training, and discloses a test platform for training hob replacement operation and an operation method of the test platform. A hob gate; the clamping hoop sleeve is fixedly connected to the lifting equipment and used for being fixedly arranged outside a hob cylinder in a sleeving mode, so that when the hob is installed, the hob is driven to move to the installation end to be aligned with an installation opening in a hob gate by operating the moving equipment and the lifting equipment; the push-pull equipment is used for pushing the mounting end of the hob cylinder to be inserted into the mounting opening; and the mounting end of the external broaching hob cylinder is separated from the mounting opening. By simulating the tool changing operation under the space condition and the construction condition basically consistent with the actual working condition, the risk point and the difficulty of the existing tool in the tool changing process can be distinguished, constructors can skillfully change the tool, the tool changing time is shortened, and the working efficiency is improved.

The invention discloses an internal meshing powerful gear honing tooth surface temperature field calculation method based on a superposition point heat source, and belongs to the technical field of gear machining and manufacturing. Comprising the steps of constructing a tooth surface equation and a honing machining coordinate system, calculating a relative speed vector between a gear and a honing wheel in the honing machining process, determining a tooth surface contact point based on the meshing principle according to the relative speed vector between the gear and the honing wheel, calculating the heat flux density at the tooth surface contact point, and obtaining a continuous tooth surface contact line heat source based on the heat flux density. On the basis of the point heat source superposition principle, contact point heat sources of the whole tooth surface are superposed, and the temperature rise generated by the whole tooth surface to a target point in the honing machining process is calculated. According to the method, the dynamic gear honing machining process is accurately simulated, the problem that a traditional temperature field method is not applicable is solved, through high-precision calculation, gear surface burning can be effectively prevented, the technology is optimized, residual stress is predicted, a key tool is provided for improving gear quality, and the method is efficient in calculation and convenient for engineering application.

The invention discloses a vertical gear hobbing machine, and belongs to the technical field of gear hobbing machines. The machine tool mainly comprises a machine tool body, an air blowing assembly, a switching assembly and a protection assembly. The air blowing assembly comprises an annular air pipe arranged on the supporting column in a sleeving mode, a guiding air nozzle and a scrap blowing air nozzle which are arranged in different directions, and a movable sealing cover mechanism and a conical cover are arranged on the periphery of the air blowing assembly. The linkage mechanism is driven by the servo motor, so that the cover sealing mechanism generates rotating displacement and lifting displacement, and function switching of the guiding air nozzle and the scrap blowing air nozzle between the shielding state and the communicating state is achieved through phase change. And meanwhile, when the servo motor drives the cover sealing mechanism to move upwards, the conical cover is synchronously linked to eject the sealing cover plate, so that the scrap blowing air nozzle gets close to the workpiece and accurately releases air flow to point to the tooth groove. Automatic switching between a chip removal disc cleaning mode and a workpiece cleaning mode is achieved through a single power source, cleaning of the air tap in the non-working stage is ensured through a dynamic protection structure, and the cleaning efficiency is improved.

The utility model relates to the technical field of eyeshade processing, and provides a hobbing device for eyeshade processing, which comprises a working table, two sliding chutes, a hobbing cutter, a hobbing cutter and a hobbing cutter, the two threaded rods are movably embedded in the two sliding grooves, the surfaces of one ends of the two threaded rods are sleeved with sliding blocks in a threaded mode, and first mounting bases are fixedly mounted on the surfaces of the two sliding blocks; and the two second mounting seats are fixedly mounted at the symmetrical positions of the surface of the workbench, and mounting shafts are embedded into bearings on the surfaces of the two second mounting seats. When the driving motor works, the rotating roller on the surface of the output end is driven to rotate, the two ends of the first transmission belt are arranged on the surfaces of the second transmission pieces in a sleeving mode, the material roller on the surface of the mounting shaft is driven to rotate, the second transmission belt is matched to be arranged on the outer surfaces of the two third transmission pieces in a sleeving mode, and one-side cutting is conducted; and the materials are tightened and moved, so that the working efficiency is improved.

The invention relates to a method for hobbing a toothing system (1), which has a toothing axis (Z), on a workpiece, in particular a batch of workpieces, in a heat-generating machining engagement with a hobbing cutter (2), the usable working region of which extends along the axis of rotation of the hobbing cutter, in which method the hobbing cutter performs an advancing movement over one or more strokes, while running through a possibly overlapping inlet travel (E), profiling travel (P) and overrun travel (Ü), with an axial advancing component running parallel to the toothing axis (Z), in order to machine the toothing system over a desired width, and with heat management control which controls the heat input into the hobbing cutter (2), due to the generated heat, to a locally delocalized heat input and, in particular, counteracts a non-uniformity of the locally delocalized heat input, as seen locally over the working region extent of the hobbing cutter, and / or counteracts a deviation, in particular a flank line deviation, of the toothing system due to thermal, in particular axial thermal expansion of the hobbing cutter and, in particular, counteracts a non-uniformity of the net heat absorbed by the hobbing cutter in a stroke, as seen temporally at least over an initial sub-batch of the workpiece batch.

This invention relates to the field of fixture technology, specifically to an automatic tooling fixture for processing agricultural machinery gears, comprising a rotating shaft, a housing, a workpiece, and a gear hobbing mechanism; the rotating shaft is mounted on a reduction motor and slidably connected to the bottom of the housing, the housing is mounted above the rotating shaft, and the workpiece is mounted above the housing, with one side meshing with the gear hobbing mechanism; characterized in that it further comprises a clamping mechanism, the bottom of which is mounted on the rotating shaft and installed inside the housing, and the top of which is connected to the workpiece; the clamping mechanism drives an eccentric pressure rod to rotate via a transmission wheel meshing with the gear, causing the pressure rod to drive a push rod to rotate outward along the center of the rotating shaft, thereby clamping the workpiece, and by utilizing the fact that the relative position between the transmission wheels remains unchanged after the workpiece is clamped, and the transmission wheels rotate around the rotating shaft, the pressure rod drives the clamping mechanism to rotate, thereby causing the clamping mechanism to drive the workpiece to rotate, and the workpiece is clamped tighter and tighter as it rotates.

The application discloses a variable rake angle insert gear dry cutting hob, which is characterized by comprising a cutter shaft and a plurality of inserts, the outer surface of the cutter shaft is provided with a spiral body for insert installation in the circumferential direction, and the plurality of inserts are detachably inserted into the spiral body; the inserts are provided with a rake face and a relief face, and the rake face and the relief face are both twisted to make the rake angle of the cutting edge unequal everywhere; the inclination of the tooth profile in gear machining can be reduced, the strength of the gear tooth is enhanced, the problems of uneven cutting wear in hobbing machining and poor contact of the gear tooth with a small spiral angle after hobbing machining are solved, gear meshing precision is improved, and in addition, the overall cost of the hob can be reduced by adopting the insert structure, the detachable connection mode is beneficial to the individual replacement of the worn inserts, and the whole hob is not scrapped.

The invention discloses a high-precision high-strength durable bevel gear machining process which comprises the following steps: S1, putting raw materials for manufacturing a blank into a 260T forming press, performing compression molding by using the forming press to obtain a blank piece, and taking out the blank piece for later use; s2, the raw materials for manufacturing the copper infiltration block are subjected to compression molding through a molding press; s3, high-temperature sintering is conducted on the blank piece and the copper infiltrated block, and a copper infiltrated blank is sintered in a nitrogen-based atmosphere; s4, the copper infiltrated blank obtained in the S3 is soaked in anti-rust oil, and the outer diameter, the inner diameter and the height size are subjected to subsequent finish turning; and S5, the workpiece obtained in the S4 is machined, rough gear hobbing, deburring and gear grinding are conducted in sequence, and a final finished product is obtained. The novel powder metallurgy process is adopted, the efficiency is improved by 40%, the material utilization rate is 95%, the energy consumption is reduced by 50%, the density of the obtained product can reach 7.5 g / cm < 3 >, the precision is 0.004 mm, the product can bear large loads without cracking, the hardness can reach HRC15-30 without heat treatment, the precision is high, the noise is low, the strength is high, and durability is achieved, and meanwhile the running noise can be reduced through the middle clearance shape.

The utility model relates to the technical field of gear hobbing machines, in particular to a horizontal high-speed numerical control gear hobbing machine which comprises a shell, a recycling box is installed on the inner wall of the shell, a filter plate is installed on the inner wall of the shell, an adsorption device is arranged in the shell and comprises an L-shaped rod, the L-shaped rod is connected to the inner wall of the shell in a sliding mode, and the L-shaped rod is connected to the inner wall of the shell in a sliding mode. A connecting ring is fixedly connected to the end, close to the recycling box, of the L-shaped rod, a rotating shaft is rotatably connected to the inner wall of the connecting ring, a fixing ring is fixedly connected to the surface of the rotating shaft, five magnetic strips are fixedly connected to the surface of the fixing ring, and four arc-shaped rods are fixedly connected to the surface of the rotating shaft; the sides, away from the magnetic strips, of the four arc-shaped rods are arc-shaped. According to the lubricating oil recycling device, the problems that in the lubricating oil recycling process, metal scraps contained in lubricating oil are often difficult to remove, so that the service life of recycled lubricating oil is short, and recycling of the lubricating oil is not facilitated are solved.

The utility model discloses a gear hobbing positioning tool which comprises a gear hobbing positioning clamp, a gear hobbing positioning section is arranged in the middle of the gear hobbing positioning clamp, a groove is formed in the middle of the outer portion of the gear hobbing positioning section, and a locking clamping piece is arranged in the groove. The locking clamping piece is connected with a height adjusting plate through a supporting rod, the height adjusting plate is arranged on the inner wall of the gear hobbing positioning section, an access cover is arranged above the gear hobbing positioning section, and the access cover is fixedly connected with the gear hobbing positioning section through a long fixing screw. The four locking clamping pieces are arranged on the periphery of the outer portion of the hobbing positioning section, the device is only suitable for positioning a round workpiece, the locking clamping pieces can be tightened and adjusted through the pushing blocks, the hobbing positioning section expands outwards, and therefore the workpiece machining position is positioned, and the machining efficiency is improved. And a supporting pad for locking the clamping piece can be added through the pushing block, so that the stress is more uniform, and the workpiece positioning firmness is improved.

The utility model relates to the technical field of camshaft production and machining, in particular to a multi-station continuous machining camshaft hobbing device which comprises a workbench, a hobbing platform is fixedly connected to the top of the workbench, a belt cover is fixedly connected to one side of the outer wall of the workbench, a first driving motor is arranged on one side of the belt cover, and a second driving motor is arranged on the other side of the belt cover. The output end of the first driving motor extends into the belt cover and is connected with a driving wheel. Double hobbing concave seats are arranged on the hobbing device, a cam shaft is placed on the hobbing concave seats and is positioned and installed through a telescopic shaft sleeve and a positioning shaft pin, then a first driving motor is used for driving a driving wheel to rotate, the driving wheel drives a synchronous belt and a driven wheel to rotate, and the driven wheel drives a connecting shaft and a hobbing cutter to rotate; the cam shafts are pushed through operation of the electric telescopic rods, when the cam shafts are close to the hobbing cutter, the hobbing cutter can conduct hobbing machining operation on the surfaces of the multiple cam shafts at the same time, and the machining efficiency is improved.