654 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 provides a method for processing a face gear by adopting a cylindrical cutter, which comprises the following specific steps of: replacing a conical cutter with a cylindrical gear turning cutter, and setting a process relief angle to avoid interference between the face gear and the cylindrical gear turning cutter; based on the meshing relation between the virtual intermediate cylindrical gear and the face gear, a face gear-cutter space coordinate system conversion model is constructed; inputting the pitch radius of the cylindrical cutter, the pitch radius of the cylindrical gear, the motion parameters of the cylindrical cutter and the face gear and the process relief angle into a face gear-cutter space coordinate system conversion model to obtain each axial offset distance of an original point of the cylindrical cutter relative to an original point of a global coordinate system when the cutter is positioned at a meshed node; and the cylindrical cutter is installed on a machine tool for face gear machining according to the axial offset distances. The cylindrical tooth turning cutter is applied to face gear tooth turning machining, the cylindrical cutter avoids machining theoretical blade type errors, and the economical efficiency and the machining precision stability are comprehensively improved.

An aluminum profile pipe internal thread roller press comprises a machine frame body, a workpiece feeding and taking device and a workpiece fixing and clamping device are arranged on the machine frame body, a boring head is arranged in the machine frame body, a main shaft is arranged in the boring head, a lifting shaft is arranged in the main shaft, the main shaft and the lifting shaft are driven by a motor to rotate synchronously, and the lower end of the lifting shaft is connected with a lifting device of the lifting shaft. The upper end of the lifting shaft is connected with a guide frame, more than two inclined sliding grooves are formed in the outer wall of the guide frame, knife rests are arranged on the inclined sliding grooves respectively, inclined guide rails are arranged on the knife rests on one sides of the inclined sliding grooves, the inclined guide rails are matched with the inclined sliding grooves, horizontal guide rails are arranged on the lower portions of the knife rests, and a telescopic guide plate is arranged on the main shaft and provided with horizontal sliding grooves. The horizontal guide rail is matched with the horizontal sliding groove, an upper connecting lug and a lower connecting lug are arranged on the tool rest, a hobbing cutter is arranged between the upper connecting lug and the lower connecting lug, a cutter shaft is arranged in the hobbing cutter, and the two ends of the cutter shaft are rotationally connected with the upper connecting lug and the lower connecting lug.

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

The invention relates to the technical field of rubber pelletizing, and particularly discloses a pelletizer for rubber processing, which comprises a rack, a hobbing cutter I, a hobbing cutter II and a spreading mechanism, the spreading mechanism comprises a material distribution roller, a material distribution part and a material supply part, the material distribution roller is rotatably arranged on the rack, and a plurality of partition plates are uniformly arranged on the peripheral side of the material distribution roller along the circumferential direction; a material containing cavity used for containing talcum powder is formed between any two adjacent partition plates, the outer sides of the partition plates can be tangent to the periphery of the second hobbing cutter, the material distributing roller and the second hobbing cutter synchronously and reversely rotate, the material distributing piece comprises a plurality of material distributing plates and a first driving structure, and each material distributing plate slides in the radial direction of the material distributing roller and is located in the corresponding material containing cavity. The material supply part is used for conveying talcum powder into each material containing cavity in the rotating process of the material distribution roller; by means of rotation of the material distribution roller and radial sliding of the material distribution piece, talcum powder covers the surfaces of cut rubber particles to form an isolation layer, and the adjacent particles are effectively prevented from adhering to one another.

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 utility model provides a positioning and clamping device for plug-in type scraping equipment, which belongs to the technical field of plastic pipeline oxide skin scraping equipment and is arranged on a box body of the plug-in type scraping equipment, one side of the box body is provided with an accommodating cavity for inserting a plastic pipeline, and the top of the accommodating cavity is provided with a cutter. The positioning and clamping device comprises a positioning frame, two groups of positioning rollers and a driving mechanism; the two groups of positioning rollers are rotationally arranged on the positioning frame; the two groups of positioning rollers are symmetrically arranged relative to the cutter; the driving mechanism is arranged on the box body; the driving mechanism comprises a lifting end connected with the positioning frame, and under the driving of the lifting end, the positioning roller can be matched with the cutter to clamp the plastic pipeline; through the arrangement, the cushion block does not need to be replaced when plastic pipelines with different diameters are clamped, and the driving mechanism can play a role in compensating abrasion of the positioning roller, so that the plastic pipelines can be clamped through cooperation of the positioning roller and the hobbing cutter, and the situation that the plastic pipelines shake in the scraping process is reduced.

The invention discloses a water-rich sand layer tunnel face pretreatment steel sleeve shield tunneling machine wall grinding receiving construction method. The method comprises the following steps that S1, shield tunneling machine tool configuration optimization is conducted; s2, a shield receiving steel sleeve is assembled; s3, diaphragm wall joint profile steel detection; s4, grouting reinforcement is conducted on the tunnel face; s5, the profile steel is chiseled away; s6, steel sleeve filling; s7, wall grinding tunneling control of the shield tunneling machine; and S8, the grouting sealing ring and the steel sleeve are dismantled. Through cooperation of the hobbing cutter and the tearing cutter, the construction requirement that a shield tunneling machine cutter cuts underground diaphragm wall steel bars and concrete is met, underground diaphragm wall joint profile steel is chiseled away in the early stage, shield receiving is conducted through the steel sleeve, and the torque is too large in the process that a textile shield tunneling machine grinds an underground diaphragm wall; according to the principle of low rotating speed, low speed and small thrust, tunneling parameters of the shield tunneling machine are reasonably formulated, grouting and ring sealing operation at the back of the duct piece wall of the shield receiving end are well done, the steel sleeve is dismantled, and the safety of shield receiving in the high-risk geological environment of the water-rich sand layer is smoothly guaranteed.

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 utility model relates to a special tool for a gear hobbing machine to machine a spline at the end of a square shaft, and belongs to the technical field of spline machining at the end of the square shaft. According to the technical scheme, a positioning seat is arranged on the upper surface of a base, a horizontally-arranged fixing square groove is formed in the top of the positioning seat, the width of the fixing square groove is matched with the width of the front face of a square shaft to be machined, and the center of the fixing square groove and the center of a first tip are located on the same vertical line; a positioning ruler is arranged above the positioning seat and located between the square shaft and the clamping arm, a positioning square groove is formed in one side of the positioning ruler, and the width of the positioning square groove is matched with the width of the back face of the square shaft to be machined. The position of the square shaft is fixed through the tool clamp, it is ensured that the front face of the square shaft is aligned with a machine tool of a gear hobbing machine, it is ensured that starting points of machining are the same each time, and the tooth crest center lines of circular shaft splines at the two ends of the square shaft are aligned with the center line of the front face of the square shaft or the tooth root center lines of the two side faces of the square shaft are aligned with the center lines of the circular shafts at the two ends of the square shaft. The requirement that the square shaft end machining spline datum plane does not deviate is 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 discloses a hob type edge cutting machine for a sintered felt, and relates to the technical field of sintered felt production. The cutting device comprises a supporting frame, a pushing table, moving plates and a cutting assembly, supporting plates are fixed to the two short edges of the top of the supporting frame, the pushing table is arranged above the supporting plates, mounting plates are symmetrically fixed to the two sides of the pushing table, the moving plates are arranged on the tops of the mounting plates, limiting plates are fixed to one ends of all the moving plates, and the limiting plates are fixed to the other ends of all the moving plates. The limiting plate is arranged at the top of the pushing table, a cutting assembly is arranged on one side of the supporting frame and comprises a speed reducer, a rotating shaft and an annular cutter, the rotating shaft is fixed to the output end of the speed reducer, and the annular cutter is fixed to the middle of the peripheral side of the rotating shaft and arranged at the top of the pushing table. Through the arrangement of the supporting frame, the push table, the movable plate and the cutting assembly, the problems that cutting machine equipment needs to be adjusted in multiple directions when different widths are cut in the edge cutting process of sintered felt, and the limiting flexibility of cutting is not high enough are solved.

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 invention belongs to the technical field of gear machining, and particularly relates to a hob positioning type transmission gear machining device which comprises a base, a supporting frame is arranged on the base and connected with a limiting disc, and the limiting disc is connected with a tool rest. The cutting assembly comprises a sliding frame, and the sliding frame is connected with a hobbing cutter; the fixing assembly comprises a placing disc, a gear is placed on the placing disc, and a limiting block is connected to the placing disc; the limiting assembly comprises a first lifting plate, the first lifting plate is sleeved with a lifting rod, the lifting rod is connected with a second lifting plate, the first lifting plate is hinged to a first folding plate, and the first folding plate is hinged to a second folding plate. The inclination angle of the hobbing cutter can be adjusted according to the cutting parameter requirement before use, hobbing cutters of different types and lengths can be installed, the multi-adaptability of the device is achieved, gears of different types and sizes can be fixed, and the situation that the cutting effect is affected due to the fact that the gears slip in the cutting process is avoided.

The utility model provides a full-automatic mouth strip splitting machine which comprises a machine frame, a fixing plate installed at the top end of the machine frame, supports arranged on the left side and the right side of the rear portion of the top end of the fixing plate, guide rails arranged on the supports, a sliding block movably installed on the guide rails and a push rod arranged at one end of the sliding block. A first baffle is arranged at the front end of the fixing plate, a groove hole is formed in the middle of the fixing plate, a first push plate is arranged in the groove hole, a second baffle is further arranged on the fixing plate, a cutter support is further installed on the fixing plate, a cutter handle is arranged on the cutter support, a cutter is arranged at the bottom end of the cutter handle, a discharging port is formed in the fixing plate, and a discharging guide groove is connected to the bottom end of the discharging port. A second push plate is arranged in the discharging port, and a pressing mechanism is further arranged at the left end of the fixing plate. According to the full-automatic opening strip splitting machine, the splitting procedure of the opening strip can be completed on the same station, and meanwhile the positions of the cutter and the hobbing cutter can be accurately adjusted according to different working requirements.

The utility model relates to the technical field of gear hobbing machines, and discloses a gear hobbing machine for gear machining, the gear hobbing machine comprises a filter box, the bottom of the filter box is arc-shaped, a lubricating box is fixedly connected to the bottom of the filter box, and a plurality of filter holes arranged in a distributed manner are formed in the inner bottom wall of the filter box. According to the gear hobbing machine for gear machining, the purpose of cleaning the surface of a gear and the surface of the machining table can be achieved through the arranged spray pipe and nozzle, residues can be prevented from moving to the outside towards the two sides through the arranged acrylic plate, meanwhile, a user can conveniently check the machining progress, and the cooling pipe is arranged, so that the cooling effect is improved. According to the gear hobbing machine, the purpose of conveying lubricating oil to a workpiece can be achieved, abrasion to a cutting edge of the gear hobbing machine is reduced, the purpose of filtering the lubricating oil can be achieved through the arranged filtering box and filtering holes, the effect of recycling the lubricating oil is achieved, and the effect of automatically discharging the filtered residues can be achieved by pushing the filtered residues through the arranged auger conveying shaft.

The utility model discloses a hobbing cutter cutting mechanism of a bag making machine, which relates to the technical field of bag making machines, and comprises a device main body, a material passing port is arranged outside one side of the device main body in a penetrating manner, a fixed plate is arranged at the top of the material passing port, and the fixed plate is fixed on the outer wall of the device main body. The cutting knife starts to rotate at a high speed and moves towards the direction of the materials, due to the fact that the guide plate is arranged downwards in an inclined mode by 60 degrees, when the cutting knife cuts the materials, the materials can slide down along the guide plate smoothly, smooth cutting is guaranteed, and in the material cutting process of the cutting knife, the scraping plate is clamped in the containing block through the clamping groove and the clamping and fixing shaft; the scraper blade is arranged on the inner side surface of the scraper blade, and the inner side surface of the scraper blade is tightly attached to the outer surfaces of the two sides of the cutting knife, so that when the cutting knife cuts materials, the scraper blade can effectively scrape residual materials attached to the cutting knife, it is guaranteed that the cutting knife is always kept clean, and cutting precision and efficiency are improved.

The invention provides an automatic cleaning device for a numerical control gear hobbing machine, and belongs to the technical field of numerical control gear hobbing machines, the automatic cleaning device comprises a base, baffles are arranged on the periphery of the upper surface of the base, a hobbing mechanism is arranged on the left side of the upper surface of the base, a clamping mechanism is arranged on the right side of the upper surface of the base, and a first cleaning mechanism is arranged below the clamping mechanism; a second cleaning mechanism is arranged in the front end of the baffle, an impurity falling opening is formed in the middle of the upper surface of the base, an impurity filtering plate is arranged below the impurity falling opening, and an impurity discharging opening is formed in the left end of the base. Through the arrangement of the first cleaning mechanism and the second cleaning mechanism, sweeps and cooling liquid falling on the upper end of the placing table can be cleaned down and pushed to the impurity falling opening, so that the sweeps and the cooling liquid cannot be carried and thrown to all positions of the machine by the rotating placing table, the generated sweeps are automatically cleaned and collected, manual intervention is reduced, and the production efficiency is improved. And the overall working efficiency is improved.

The utility model discloses a high-precision numerical control worm gear hobbing machine, which relates to the technical field of processing equipment and comprises a machine body, a sliding rail is arranged at the top of the machine body, a feeding table is arranged above the sliding rail, sliding tables are arranged on two sides of the bottom of the feeding table, and the sliding tables are in sliding connection with the sliding rail; a control table is arranged on one side of the feeding table, a control box is arranged at the top of the control table, a detection head is arranged above the control box, and a lifting rod is connected between the detection head and the control box; a supporting seat is arranged at the other end of the bottom of the machine body, a connecting table is arranged above the supporting seat, a supporting table is arranged at the top of the connecting table, an electrical box is arranged at the top of the supporting table, a hob head is arranged on one side of the electrical box, and a hob is arranged at the other end of the hob head. According to the high-precision numerical control worm gear hobbing machine, the motor is arranged, a workpiece and the hobbing cutter are slowly attached to be machined, and large impact on the hobbing cutter is avoided.

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 provides a table top thick and flat sanding mechanism and solid wood processing equipment, and belongs to the technical field of wood sanding, the table top thick and flat sanding mechanism specifically comprises a driving roller, a first driven roller, an adhesive tape, a second driven roller, an abrasive belt and a position conversion structure, the first driven roller and the second driven roller are arranged in parallel at intervals, the adhesive tape is wound on the driving roller and the first driven roller, and the abrasive belt is arranged on the position conversion structure. The abrasive belt is wound on the driving roller and the second driven roller, the position conversion structure comprises a quarter arc rack, a sliding seat, a gear and a first driver, one end of the quarter arc rack vertically corresponds to the position of the first driven roller in parallel, the other end of the quarter arc rack horizontally corresponds to the position of the driving roller in parallel, and the sliding seat slides on the quarter arc rack in a limited mode; the gear is rotationally arranged on the sliding seat and is in meshed connection with the hobbing on the quarter arc rack, the first driven roller is rotationally arranged on the sliding seat, and the first driver is in transmission connection with the gear. Through deformation of the sanding mechanism, the functions of accurate grinding and rough grinding are achieved, and the equipment size is reduced.

The utility model discloses a gear hobbing device for machining an engine support, which relates to the technical field of engine support machining and comprises a fixed plate welded on the outer wall of the upper part of one side of a box body, a position adjusting mechanism, a reciprocating machining mechanism and a rotary clamping mechanism, the position adjusting mechanism comprises a sliding groove formed in the top of the fixing plate, a threaded rod rotationally installed in the sliding groove and a T-shaped adjusting base in threaded connection to the threaded rod. Through cooperation of the rotary clamping mechanism and the reciprocating type machining mechanism, the engine support clamped by the three-jaw chuck rotates, and the electric hobbing cutter reciprocates on the surface of the engine support, the surface of the engine support can be subjected to sufficient and uniform hobbing treatment; the gear hobbing treatment effect can be improved; and the cooling assembly is arranged, so that the surface of the engine support in the rotating state can be uniformly cooled, and meanwhile, the reciprocating electric hobbing cutter can be cooled.

The utility model relates to the technical field of garden equipment, and discloses a self-propelled hob grass mower with a built-in motor, which comprises a casing, a hob assembly, a traveling wheel, a driving motor and a clutch driving assembly, the hobbing cutter assembly comprises a hobbing cutter shaft and a hobbing cutter group; the hobbing cutter shaft is rotationally connected with the machine shell; the walking wheels are located on the two sides of the hob assembly respectively. The driving motor is arranged in the hob assembly; the clutch driving assembly is located between the hob shaft and the corresponding walking wheel and used for controlling rotation of the walking wheel. When the driving motor works, the hob shaft and the walking wheel are controlled to rotate synchronously through the clutch driving assembly. When the driving motor does not work, the walking wheels can freely rotate front and back. According to the grass mower, the hob shaft is matched with the clutch driving assembly, the self-walking and mowing functions of the grass mower are achieved, when the driving motor stops, the grass mower can advance and retreat freely, the overall structure is simplified, the maintenance and production cost is reduced, the automation degree is high, and the labor intensity of operators is relieved.

The invention discloses a gear hobbing machine tool rest driven by a built-in motor, and belongs to the technical field of machine tool machining. The gear hobbing machine tool rest comprises a mounting base, a rotating disc is arranged at the front end of the mounting base, a hobbing cutter is arranged at the front end of the rotating disc, supporting plates are rotationally mounted at the two ends of the upper end of the hobbing cutter, and the supporting plates are fixedly connected with the rotating disc; and a first driving motor is further mounted on the rotating disc. By recording the magnitude and direction of the vibration force of the rotating disc in the X-axis direction and the Y-axis direction at each moment and the information of the corresponding stability control assembly, the system can introduce current into the corresponding electromagnet in advance before the rotating disc vibrates at the next moment, so that the vibration force about to be generated by the rotating disc is accurately counteracted; therefore, the vibration amplitude of the rotating disc is reduced more effectively, accurate control over vibration is achieved, the response time of the system to vibration is greatly shortened, the rotating disc can recover to the stable state more quickly, and the adverse effect caused by vibration of the hob is reduced.

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.