314 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 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 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 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 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.

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 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 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.

1. Name of the product in this design: High-speed CNC gear hobbing machine. 2. Intended use of this design: for gear processing equipment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to the technical field of gear hobbing machines, in particular to a gear hobbing machine A shaft structure which comprises a gear hobbing machine swing angle box body, an A shaft servo motor and an A shaft speed reducer are fixedly arranged in the gear hobbing machine swing angle box body, a swing angle tool channeling seat is arranged at the front end of the gear hobbing machine swing angle box body in a rotating mode, and an oil box is fixedly arranged on the gear hobbing machine swing angle box body. A lubricating assembly and an auxiliary assembly are arranged on the oil box; after a filter plate is inserted into an oil inlet box and clamped with a cushion block, an oil absorption sponge block absorbing lubricating oil is placed, a screw rod is rotated to control a pressing plate to move downwards to be inserted into the oil inlet box to extrude out the lubricating oil in the oil absorption sponge block, and the lubricating oil is filtered by the filter plate and then drips to the joint of a swing angle tool channeling base and a gear hobbing machine swing angle box body from a dropper opening. Meanwhile, the fixing plate can be extracted and detached, so that the oil absorption sponge block is convenient to replace, the filter plate is convenient to clean, the operation is simple, and the scalding risk that an operator holds a dropper to extend to the joint of the swing angle tool channeling seat and the swing angle box body and touches the machine easily is avoided.

The utility model discloses deburring equipment of a gear hobbing machine, which relates to the technical field of gear hobbing machines and comprises a gear hobbing machine body and a base, the base is arranged at the bottom of the gear hobbing machine body, a supporting box and a stand column are arranged on the base, a turntable is arranged on the stand column, a gear body used for machining is placed on the turntable, and the gear body is arranged on the gear hobbing machine body. A fixing plate is arranged in the supporting box, a fixing rod is arranged on the fixing plate, the fixing rod is sleeved with a sleeve, a supporting rod is fixedly arranged on the side wall of the sleeve, a rotating rod is rotatably arranged at one end of the supporting rod, and the gear hobbing machine body machines a gear body through a hobbing cutter. The grinding cylinder rotates and grinds and deburs the machined gear body, the sleeve slides up and down along the fixing rod, the sleeve drives the cleaning cylinder to move up and down, the gear penetrating out of the body can be ground conveniently, gear burrs are cleared more quickly and efficiently, and the deburring efficiency of the gear hobbing machine is improved.

The invention relates to the technical field of gear precision machining, in particular to a machining error prediction and compensation method based on deep learning. Inputting time sequence process data in the gear hobbing process into the prediction model to output a plurality of error data; determining a prediction error data characterization value based on the plurality of error data, and determining whether the prediction error exceeds the standard based on the prediction error data characterization value and a preset characterization value; dynamically adjusting the learning rate based on the deviation value and a preset deviation value in response to the fact that the prediction error exceeds the standard; determining an energy ratio of a single error item in a preset number of characteristic frequency bands based on the error amplitude spectrum so as to determine a corresponding compensation value, and executing compensation processing; determining an actual measurement error data characterization value based on a plurality of actual measurement error data of compensation machining so as to determine the qualification of hobbing machining; and determining an adjustment strategy based on the actually measured data characterization value and a preset characterization value in response to unqualified gear hobbing. The gear machining precision and consistency are remarkably improved.

The utility model relates to the technical field of hobbing cutters, in particular to an adjustable granulator hobbing cutter which comprises a hobbing cutter shaft, smooth grooves are formed in the upper surface and the lower surface of the hobbing cutter shaft, a first hobbing cutter lantern ring is installed on the outer surface of the hobbing cutter shaft, and limiting grooves are formed in the upper surface and the lower surface of the first hobbing cutter lantern ring. A lead screw body is installed on the inner side wall of the first hob lantern ring. And the movable block is installed on the outer surface of the lead screw body, a top plate is fixedly connected to the top face of the movable block, a limiting block is installed on the right side surface of the movable block, and the limiting block is installed on the inner wall of the first hob lantern ring in a sliding mode. By means of the design of the limiting blocks, the stability of the movable blocks during sliding can be guaranteed, and therefore the stability of the installation sleeve and the hob body during sliding on the surface of the first hob lantern ring can be guaranteed, the positions of the installation sleeve and the hob body can be conveniently adjusted, and adjustment is convenient.

The invention discloses a shield tunneling machine with a normal-pressure cutter changing cabin, and relates to the technical field of cutter changing of shield tunneling machines, the shield tunneling machine comprises a cutter head body, a hobbing cutter, a shield tunneling machine body, a partition plate, a telescopic column and a cabin body, a cutter changing component is further arranged between the cutter head body and the partition plate, and a calibration component is further arranged on the inner surface of the cabin body. And the outer surface of the calibration component is fixedly connected with a prompt component. Aiming at the problems that a tool changing device suspended by a chain and a hard pull rope is easy to swing during movement and is difficult to accurately align with a hob, the device is provided with a two-dimensional guide mechanism consisting of a calibration wheel and a rolling shaft. The calibration wheel performs rolling limiting on the side surface of the device in the transverse direction to restrain horizontal swinging of the device; the rolling shafts arranged in the vertical direction provide rolling support for lifting of the device. According to the design, sliding friction between the device and the guide face is converted into rolling friction, and the problems that labor is wasted due to large friction resistance when a tool changing device is manually pushed, and the tool changing device is difficult to abut against a hob due to suspension swing and needs to be repeatedly adjusted are solved.

The invention discloses an automatic feeding and discharging device of a gear hobbing machine. The automatic feeding and discharging device comprises a push plate feeding machine, a six-axis robot and the gear hobbing machine are both arranged on a machine table, and a feeding mechanism is arranged above the push plate feeding machine; the material sliding table, the positioning plate assembly and the material pushing mechanism are all arranged in the material box, the material sliding table is arranged at the bottom of the material box and inclines towards the positioning plate assembly, the feeding end of the positioning plate assembly abuts against the discharging end of the material sliding table, and the discharging end of the positioning plate assembly abuts against the feeding end of the feeding mechanism; a material channel extending in the length direction of the straight vibration feeder is arranged on the straight vibration feeder, and the discharging end of the material channel abuts against the feeding end of the rotating mechanism. And when the to-be-machined part is switched to be in the vertical state, the clamp of the six-axis robot clamps the to-be-machined part and conveys the to-be-machined part to the gear hobbing machine, and the to-be-machined part is machined through the gear hobbing machine. The automatic feeding and discharging device replaces manual operation, and the feeding and discharging efficiency is greatly improved.

The gear hobbing power head comprises a mounting table, a machine body is mounted on the mounting table, an input shaft and an output shaft are rotationally arranged on the machine body, the output shaft is used for mounting a gear hobbing cutter, the input shaft and the output shaft are perpendicular to each other, a transmission mechanism is arranged between the input shaft and the output shaft, and the transmission mechanism is arranged on the machine body. The input shaft drives the output shaft to rotate through the transmission mechanism; the transmission mechanism comprises a driving bevel gear installed on the input shaft, a transmission shaft rotationally arranged on the machine body, a driven bevel gear installed at one end of the transmission shaft, a driving gear installed at the end, away from the driven bevel gear, of the transmission shaft, a driven gear and a transmission gear rotationally arranged on the machine body. The driven bevel gear installed on the output shaft is meshed with the driving bevel gear, the transmission gear is detachably arranged between the driving gear and the driven gear, and the transmission gear is meshed with the driving gear and the driven gear at the same time. The gear hobbing power head has the effect of reducing the influence of the mounting space on the mounting of the gear hobbing power head.

The invention relates to the technical field of gear production, in particular to high-precision gear machining equipment and a process thereof.The high-precision gear machining equipment comprises a bottom cabinet of a rectangular structure; the shell is arranged at the upper end of the bottom cabinet; the clamping piece is rotationally connected to the upper end of the bottom cabinet; the gear cutting piece is movably arranged in the shell; the driving part is mounted at the lower end of the tooth cutting part, and the driving part is movably arranged at the upper end of the bottom cabinet; the liquid feeding piece is arranged in the bottom cabinet; the mounting shaft is rotationally mounted at the upper end of the bottom cabinet, and the mounting shaft is connected with the driving part; the polishing wheel is arranged at the upper end of the mounting shaft; and the cleaning piece is attached to the upper end of the rear portion of the polishing wheel and installed at the upper end of the bottom cabinet, gear machining is carried out in an independent continuous cutting mode through the design, and the probability that due to multi-position synchronous gear hobbing type machining factors, the edge position of a gear is damaged and the like is large is effectively reduced. The large probability of gear size errors and the like in steering machining is effectively reduced, and the machining effect and the gear quality are effectively guaranteed.

The invention provides a gear hobbing machine execution mechanism helical angle error on-line detection system comprising a first angular displacement sensor used for collecting workbench angular displacement data; the second angular displacement sensor is arranged on a gear hobbing machine cutter bar shaft and used for collecting cutter bar angular displacement data; the linear displacement sensor is arranged on the gear hobbing machine tool rest and used for collecting linear displacement data of the tool rest in the vertical direction; the data acquisition card is used for processing the angular displacement data of the workbench, the angular displacement data of the cutter bar and the linear displacement data of the cutter rest in the vertical direction according to the current main time base, and the current main time base is dynamically switched according to the channel stability score of each channel; and the processor is connected with the data acquisition card and is used for determining the helical angle error of the helical gear according to the processed angular displacement data of the workbench, the angular displacement data of the cutter bar and the linear displacement data of the cutter rest in the vertical direction. According to the invention, the detection precision of the helical angle error of the gear hobbing machine execution mechanism can be improved.

This utility model relates to the technical field of sun gear machining fixtures, specifically a sun gear hobbing composite fixture, including a base, a mandrel mounted at the center of the base, a clamping device mounted on the base, and a hydraulic nut located on the top of the mandrel. The clamping device includes a jaw mounted on the base, an adjusting rod rotatably connected to the jaw, and a pressure plate fixed on the base. The pressure plate has a raised long key. The jaw includes a jaw head section, a cylindrical section perpendicularly fixed to the jaw head section, and limiting keys symmetrically fixed on both sides of the cylindrical section. A threaded hole is opened in the center of the cylindrical section. The adjusting rod includes a threaded section, a middle section, and an end fixed in sequence. The middle section has an annular groove, and the end has a hexagonal shape. The threaded section of the adjusting rod is connected to the threaded hole in the cylindrical section. The long key is located in the annular groove of the middle section of the adjusting rod. This fixture can simplify the sun gear alignment steps, improve alignment efficiency, save process changeover time, and significantly improve production efficiency.

The utility model relates to the technical field of hob machining, and discloses a cooling device for hob machining, which comprises a machining table, the upper part of the machining table is fixedly connected with a support column, and the upper part of the support column is fixedly connected with an L-shaped chute. The hobbing cutter is clamped to the upper portion of the connecting plate, the second motor is started through the external controller, the output shaft of the second motor rotates to drive the first threaded rod to rotate in the fixing strip, then the internal thread assembly moves backwards along the inner groove of the L-shaped sliding groove, and the lifting sliding groove and the sliding column are driven to move backwards. When the sliding column moves to the rearmost end of the interior of the L-shaped sliding groove, a first motor is started, an output shaft of the first motor rotates to drive the sliding column to descend along the surface of a second threaded rod, the hob is placed on the inner side of the water storage tank to be completely immersed in water, and meanwhile a first conical block is connected with the left sliding column and the right sliding column to make the left sliding column and the right sliding column move synchronously. The hob cooling speed is high, the cooling effect is good, and workers are prevented from being scalded by the hob.

The utility model relates to the technical field of gear hobbing feeding of gear pumps, in particular to a gear hobbing feeding device of a gear pump, which is provided with a discharging mechanism and a filtering mechanism, so that in the gear hobbing feeding process of the gear pump, cutting chips can be discharged in a follow-up manner, the pressure of a table top is reduced, the neatness is increased, and the processing efficiency is improved. Comprising a moving mechanism; the device further comprises a driving mechanism, a rotating mechanism, a discharging mechanism and a filtering mechanism, the driving mechanism is installed at the right end of the moving mechanism, the rotating mechanism is installed on the moving mechanism, the discharging mechanism is installed on the rotating mechanism, and the filtering mechanism is installed at the front end of the moving mechanism; the moving mechanism is used for feeding, the driving mechanism is used for driving, the rotating mechanism is used for rotating, the discharging mechanism is used for discharging, and the filtering mechanism is used for filtering.