262results about "Broaching machines" patented technology

The invention discloses a control method and system of a vertical multi-axis numerical control mortise broaching machine and a storage medium, and relates to the technical field of broaching machines. The control method comprises the following steps that S1, a three-dimensional model of a workpiece is imported, and a mortise machining area is recognized based on geometric features of the model; s2, according to the material attribute, the tool type and the machining precision requirement, the feeding speed, the cutting depth and the main shaft rotating speed parameter of a machining path are set; s3, generating a multi-axis linkage tool path plan, and decomposing a tool path into a control instruction of multi-axis cooperative motion through a numerical control system; s4, the deviation between the actual position and the theoretical position of each shaft is monitored in real time in the machining process, and the output torque and the rotating speed of the servo motor are dynamically adjusted; s5, collecting cutting force data in real time; s6, the distance between the cutter and the surface of the workpiece is measured in real time through a laser displacement sensor, and a displacement feedback signal is generated; and if the cutting force data and the displacement feedback signal exceed preset threshold values, a dynamic compensation mechanism is triggered. The broaching machine control method has the effect of improving broaching machine control accuracy.

The invention discloses an ultrasonic-assisted broaching machine tool based on a resonance broach and a design method. The machine tool comprises a broaching machine structure; a groove of the ultrasonic broaching tool is located in the position corresponding to the vibration mode wave crest of the broaching tool; the main piezoelectric actuator device is arranged in the groove; the compensation piezoelectric actuator device is arranged at the position, corresponding to the radial vibration mode, of the ultrasonic broach; the frequency of the ultrasonic power supply and the main power supply is the corresponding frequency when the axial ultrasonic vibration amplitude is maximum and the radial ultrasonic vibration amplitude is minimum under different power supply frequencies, the main driving voltage is determined according to the frequency of the main power supply, the preset broaching maximum speed of the broach and an ultrasonic auxiliary broaching effectiveness coefficient, and the frequency of the compensation power supply is the same as the frequency of the main power supply; the phase difference is 180 degrees, and the compensation driving voltage is the corresponding driving voltage when the ratio of the radial ultrasonic vibration amplitude to the axial ultrasonic vibration amplitude in different driving voltages is smaller than or equal to a preset threshold value. The ultrasonic assistance of the broach which needs to be frequently clamped can be realized.

The invention belongs to the technical field of machining, and particularly relates to a turbine disc mortise accurate positioning method for a five-axis numerical control broaching machine, which comprises the following steps of: S1, constructing a broaching force model, carrying out a broaching force test, and respectively obtaining turbine disc mortise broaching force coefficients in x, y and z directions so as to establish a single-tooth broaching force model; secondly, a multi-tooth broaching force model is built on the basis of a single-tooth cutting force model, S2, mechanical deformation analysis is conducted, and the workpiece deformation amount is calculated according to cutting force; measuring the displacement variation of a mortise cutting point by adopting laser; linear equation fitting is carried out based on the numerical values of the multiple sets of workpiece deformation and displacement variation, and a corresponding linear equation is obtained; and S3, when the broaching machine is adopted for machining, the cutting force is calculated based on the broaching force model, then corresponding cutting force loads are applied to the mortise broaching machine finite element model, deformation in the x direction, the y direction and the z direction is obtained, the actual deformation amount is calculated according to the linear equation in the S2, and accurate positioning coordinates are obtained.

The invention belongs to the technical field of machining, and particularly relates to an ultrasonic internal broaching test platform and an ultrasonic vibration mode control method.The test platform comprises a base, a broach and a clamping mechanism, and the clamping mechanism comprises a supporting ring and a clamping sleeve; a clamping groove is formed in the broach, and a protrusion matched with the clamping groove is arranged on the clamping sleeve. A plurality of supporting columns are arranged on the base, and the supporting columns are arranged in a circular shape. The broach is arranged in a space defined by the multiple supporting columns. And a piezoelectric actuator is arranged on the broach. Based on the platform, the invention provides the control method of the ultrasonic vibration mode, modal drift can be optimized and reduced by adjusting the pre-tightening force and the ultrasonic power supply driving frequency, the pre-tightening force is adopted to adjust and stabilize the contact rigidity, and the energy loss can be reduced; through frequency tracking, resonance points are matched in real time, and energy transfer can be maximized; the two modes are cooperatively controlled, response speed and stability are both considered, and the method adapts to high-dynamic loads.

The present invention relates to the technical field of turbine disc processing, and specifically discloses a dual-station interactive platform matching system based on a multi-intelligent system, including a turbine disc specification module, a broach performance module, a broaching process module, a broach management module, a tool magazine module, a data matching module, a cycle module, a dual-station collaboration module, and a step execution module; the present invention records and matches turbine discs, broaches, and broaching processes, and workers only need to input broaching requirements, and the system can automatically plan broaching tasks, and use dual-station collaboration to perform broaching operations, significantly reducing manual intervention and improving the level of automation; it also optimizes the operating steps of the broaching machine and improves the work efficiency of the broaching machine by planning step cycles and limiting the adopted collaboration mode, while using an asynchronous replacement mode to reduce the waiting time for replacing the broach, thereby reducing the impact of replacing the broach on work efficiency, allowing the broaching machine to maintain efficient operation, shortening the production period, and better meeting actual production needs.

The invention relates to the technical field of tool machining data acquisition, and provides a broaching tool machining data acquisition method and system, and the method comprises the steps: obtaining original information flows from various mechanical sensors, carrying out the time alignment of the original information flows, and obtaining the aligned original information flows; identifying a transient event based on the aligned original information flow, and extracting multi-dimensional features of the transient event; constructing a multi-channel space-time correlation fingerprint database; constructing a real-time multi-channel event sequence on each channel based on the transient event and the multi-dimensional features, and matching the real-time multi-channel event sequence with a multi-channel space-time association fingerprint database to obtain a fingerprint matching result; and based on the real machining event fingerprints and the electromagnetic noise fingerprints, a real machining event and electromagnetic noise are distinguished in combination with a fingerprint matching result, so that the broaching tool state and machining abnormality are recognized. The method has the effect of improving the accuracy of broaching tool state recognition and machining abnormality diagnosis.

This invention relates to the field of turbine disk machining technology, specifically disclosing a long-stroke high-speed broaching machine, including a main machine bed, a tool magazine on one side of the main machine bed, a front bed on one side of the main machine bed, a worktable on one side of the front bed, a main slide on one side of the worktable, and several interactive components on the inner side of the main machine bed. This invention uses a tool magazine to store broach boxes, which can store broaches of different models and specifications. In turbine disk broaching operations, for different stages of broaching such as roughing, semi-finishing, and finishing, the corresponding broach can be quickly selected from the tool magazine, separating broach replacement from broach box replacement, reducing the working time occupied by broach replacement, and improving broaching efficiency.

The invention relates to the technical field of broaching machines, and particularly discloses a large turbine disc mortise broaching machine main transmission device which comprises a machine shell, a machine cover is hinged to the top of the machine shell, a notch is formed in the surface of the machine cover, strip-shaped openings are formed in the two sides of the machine shell, and a surrounding plate is fixedly installed on the inner bottom wall of the machine shell. According to the main transmission device of the large turbine disc mortise broaching machine, the displacement driving motor drives the lead screw to rotate, the lead screw drives the two lead screw sleeves to synchronously draw close, and the rack assembly, the driving assembly and the cleaning assembly can slide on the sliding rods through the sliding sleeves to be folded; and the main transmission motor drives the driving helical teeth to rotate, the driving helical teeth drive the rack shell, the sliding strip and the broach to slide in the guide rail shell, and the side face of the broach makes contact with the outside of the turbine disc, so that broaching and cutting are achieved, and the purpose of conveniently cutting the outer surface of the turbine disc is achieved.

The invention relates to the technical field of motor machining, in particular to a cutting machine for machining a vehicle motor support. Comprising a machining table, a hydraulic mechanism is arranged above the outer wall of the machining table, a machining groove is formed in the outer wall of the machining table, and a cleaning mechanism is arranged on the outer wall of the machining table and located below the machining groove; the hydraulic mechanism comprises a hydraulic head, a hydraulic rod, a fixing clamp and a to-be-machined part, the hydraulic head is fixedly connected to one side above the outer wall of the machining table, the hydraulic rod is fixedly connected to the driving end of the hydraulic head, the fixing clamp is fixedly connected to the other side above the outer wall of the machining table, and the to-be-machined part is installed on one side of the fixing clamp. The cleaning mechanism comprises a transmission shaft, a driving assembly and a conveying belt, the transmission shaft is rotationally connected below the outer wall of the machining table, the driving assembly can be fixedly connected to the outer wall of the transmission shaft, and the conveying belt is installed on the outer wall of the driving assembly. Compared with the prior art, chippings generated in the machining process of the to-be-machined workpiece are directly received and conveyed through the conveying belt, manual cleaning by hands or cleaning by a dust collector are not needed, and the working efficiency of the device is greatly improved.

The invention provides broaching equipment which comprises a machining table top, a broaching assembly, a driving assembly and a guiding assembly, the broaching assembly comprises a clamping part, a broaching part, a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are located on the two sides of the machining table top, and the driving assembly comprises a first driving part and a second driving part; the broaching assembly comprises a first driving part and a second driving part, the first driving part at least drives the broaching assembly to move relative to the machining table top, the second driving part at least drives the first mounting plate to move relative to the second mounting plate, the guide assembly comprises a main guide shaft set and an auxiliary guide shaft set, and the auxiliary guide shaft set is at least fixedly connected with the second mounting plate. The first driving part drives the auxiliary guiding shaft set to move relative to the main guiding shaft set in the axial direction. The upper face and the lower face of the fixed end face are kept relatively parallel, the axial centering reliability of the broach and the stress effect stability during work are improved, and the service life of the broach is prolonged.

The invention belongs to the technical field of machining, and particularly relates to an ultrasonic internal broaching broach vibration mode design and control method, which comprises the following steps: firstly, based on a modal isolation structure design method, accurately designing axial and radial vibration modes of a broach so as to meet the requirements of high-precision and high-efficiency broaching machining; a signal processing method based on filtering driving is provided, a designed target vibration mode is accurately driven, the problem that the vibration mode bandwidth of PZT changes along with working conditions such as temperature is solved, finally, due to the fact that the broach frequency vibration mode drifts along with working condition changes in practical application, a dynamic frequency tracking system is developed, and it is ensured that when signals are close to the resonant frequency, the vibration mode bandwidth of the PZT changes along with the working condition changes. The driving frequency can be dynamically adjusted, and it is ensured that the ultrasonic-assisted broaching system is always kept in the target vibration mode. Through optimization and improvement in the three aspects, the ultrasonic vibration broaching effect of the high-strength and high-hardness workpiece is remarkably improved.

The present invention discloses a fixture and a broaching method for the precision broaching of the tenon and groove of a small test block of an aviation high-pressure turbine disc. The fixture includes a support frame, a chassis and a pressure plate. The support frame is plugged into the axial end face of the chassis through a solid shaft, and there is an inclined angle between the solid shaft and the axial end face of the chassis, and the pressure plate is connected to the solid shaft through a thread. When precision broaching the tenon and groove of a small test block, the small test block is first placed between the support frame and the pressure plate and clamped, and the tenon and groove size of the small test block is gradually formed by a horizontal high-speed broaching machine, and the broaching and forming process is divided into two steps: rough drawing and fine drawing. The present invention provides a fixture for drawing the tenon and groove of a small test block during the broaching process of a high-pressure turbine disc. The fixture has a simple structure, is light in weight and is easy to clamp. The use of the fixture greatly improves the production efficiency and forming quality of the high-pressure turbine disc.

The utility model discloses a three-station two-stage material pushing device and a vertical broaching machine, and the three-station two-stage material pushing device comprises a base which is provided with a first sliding rail; the middle plate is slidably mounted on the first sliding rail and connected with a first driving device for driving the middle plate to slide along the first sliding rail; the middle plate is provided with a second sliding rail; the operation panel is slidably mounted on the second sliding rail and connected with a second driving device for driving the operation panel to slide along the second sliding rail; the length extension directions of the first slide rail and the second slide rail are the same; the operation plate is provided with a plurality of workpiece positions which are used for placing workpieces. According to the three-station two-stage material pushing device, workpieces can be conveniently taken and placed, the working convenience of operators is improved, and the operation risk is reduced.

The invention discloses an ultra-long stroke broach high-speed driving vibration suppression compensation system and method. The broach is long in stroke, large in load, high in speed and very easy to vibrate; meanwhile, errors generated by broach abrasion and system deformation are the two key factors influencing the machining precision and efficiency of the broaching machine. In order to solve the technical problems of machining errors and the like caused by mechanical vibration and deformation in high-speed driving, the invention provides the following technical scheme that the system comprises a broaching machining mechanism, a workpiece clamping and moving mechanism and a workpiece broaching tool damping mechanism. The high-speed drive damping technology is achieved through the broach drive three-dimensional damping assembly and the workpiece broach damping device, and the real-time error compensation technology is achieved through the displacement fine adjustment mechanisms at the two ends of the broach. And through the high-speed driving and real-time error compensation technology, the precision and efficiency of ultra-long stroke broaching machining are improved. In addition, the guide wheel is used for abutting against the back side of the cutting position of the broach, and excessive deformation, caused by cutting force, of the middle of the ultra-long broach is avoided.

The broaching device comprises a device rack, a lifting mechanism, a broaching tool set, a rotating station mechanism, a cleaning and guniting mechanism and a driving device.The lifting mechanism is arranged on the device rack, the broaching tool set is fixedly connected to a lifting motion frame of the lifting mechanism and comprises a plurality of broaching tool bodies, and the rotating station mechanism is arranged on the lifting motion frame of the lifting mechanism. Besides, a rotating station mechanism is arranged at the position, located at the bottom of the broaching tool set, of the device rack, the rotating station mechanism comprises a rotating disc and a plurality of sets of station tables fixedly connected to the rotating disc, and the lifting motion frame is in power connection with the rotating disc through a one-way transmission mechanism. A cleaning and slurry spraying mechanism used for cleaning and cooling the broaching tool set is further arranged on the device rack, a driving device is fixedly connected to the device rack, and the driving device is in power connection with the lifting mechanism and the slurry pump body. The device has the characteristics of reducing the maintenance and repair cost, improving the production efficiency and improving the processing quality.

The utility model relates to the technical field of broaching equipment, and discloses a tool base device and a broaching machine, the tool base device and the broaching machine comprise: a main body provided with a mounting groove, and a tool is arranged in the mounting groove; the first limiting groove is formed in the main body and is communicated with the mounting groove; the first key groove is formed in the periphery of the cutter, and the first key groove corresponds to the first limiting groove; the first fastening piece penetrates through the first limiting groove and abuts against the interior of the first key groove so as to limit movement of the cutter. The second limiting groove is formed in the main body and is communicated with the mounting groove; the second key groove is formed in the bottom of the cutter, and the second key groove corresponds to the second limiting groove; the limiting key is fixed in the second limiting groove and the second key groove through a second fastener and limits the movement of the cutter; according to the tool base device and the broaching machine, the first limiting mechanism is matched with the second limiting mechanism, the purpose of stably fixing the tool is achieved, the structural design is reasonable, the purpose of conveniently adjusting and replacing the tool is achieved, and practicability is high.

The utility model discloses a machining device, and particularly relates to a spline machining device which comprises a stand column, a working table is arranged on the stand column, a clamp for clamping a spline to be machined is arranged on the working table, and a spline broach is arranged above the working table. And the spline broach and the to-be-machined spline can be automatically cleaned through the first spray head and the second spray head arranged on the workbench. The first spray head is horizontally arranged and used for cleaning a spline broach, and the second spray head is obliquely arranged and directly cleans a spline to be machined, so that thorough cleaning is ensured; the first reinforcing rib and the second reinforcing rib are arranged between the sliding block and the connecting plate, the connecting strength and rigidity are enhanced, it is guaranteed that the spline broach is stable and reliable in the machining process, and the machining precision is improved.

The invention relates to the technical field of turbine disc machining, and particularly discloses a turbine disc mortise broaching machine tool index plate which is characterized in that a fixing shell is fixedly mounted at the top of a mounting flange, a rotating shell is rotatably mounted in the fixing shell, a sealing shell is fixedly mounted at the top of the rotating shell, a turbine disc body is clamped on the surface of the sealing shell, and a clamping groove is formed in the surface of the sealing shell; a rotating shaft A is rotationally connected to the inner bottom wall of the fixing shell, a ratchet mechanism and a gear mechanism are arranged on the outer side of the rotating shaft A in a sleeving mode, a rack is driven by stretching of an electric push rod to transversely move in a sliding groove, the rack can drive a gear disc and the rotating shaft A to rotate, and teeth on the rack are set to be short. The telescopic control stroke of the electric push rod is matched with the rack, every time the rack slides outwards and expands, the rotating angle of the gear disc every time is six degrees, meanwhile, the ratchet disc can also rotate by a tooth seam, the torsional spring immediately controls the pawl head to abut against the tooth seam of the ratchet disc, then the rotating shaft A is locked, and the purposes of locking the index plate and preventing mistaken touch rotation are achieved.

The utility model discloses a draw -bench technical field's draw -knife support platform on draw -bench, including base, bracket and cooling pool, and the bracket is supported on the base through the lifting rod, and through the adjustment of lifting rod, can carry out height adjustment to bracket, also can adjust height respectively to the left and right ends of bracket, reaches the purpose of adjusting the angle of bracket and holds up, thereby stably erects draw -knife on the base, and can adjust draw -knife to the same horizontal position with the work piece of draw -bench, is convenient for cutting operation, still has increased the barrier net and the liquid baffle, still has increased the nozzle simultaneously, thereby can spray the coolant on draw -knife, effectively remove the metal dreg on its surface, reduce the probability of dreg residue, facilitate personnel's cleaning to draw -knife after each processing, still increased the cooling pool and the net frame and give the nozzle cooling liquid, make the whole device reach the coolant circulation utilization, and can collect the metal dreg of cutting through the net frame, convenient operation, convenient to use.

The utility model relates to the technical field of key pulling positioning, and discloses a heavy-duty car transmission shaft end face fork end tooth key pulling positioning tool which comprises a support, a protection frame is fixedly connected to the top of the support, a mold is arranged in the protection frame, a hydraulic cylinder is fixedly connected to the interior of the protection frame, and the output end of the hydraulic cylinder is fixedly connected with a sliding plate. A limiting column is slidably connected into the sliding plate, a clamping jaw is fixedly connected to the side wall of the sliding plate, a bottom plate is arranged on the side wall of the support, and a chip removal assembly is arranged at the top of the bottom plate. The chip removal assembly comprises a supporting column. According to the device, the vibration motor generates vibration to drive the inclined supporting plate to drive the blanking plate to shake, and then the second connecting ring drives the spring to contract, so that the problems that the surface of a workpiece is scratched and the machining precision is reduced due to the fact that metal chippings generated in the cutting process are easily accumulated in a machining area are solved; the practicability of the end face fork end tooth broaching key positioning tool for the transmission shaft of the heavy-duty car is improved.

The present invention provides an EPS joint fork intelligent manipulator broaching machine, which includes a feeding mechanism, an arranging and conveying mechanism, a spline broaching device and a positioning and feeding tooling. There are two conveyor belts for conveying universal joint forks on the arranging and conveying mechanism. Along the conveying direction of the conveyor belts on the arranging and conveying mechanism, a first material blocking mechanism, a second material blocking mechanism and a positioning blocking frame are successively arranged. There are two feeding manipulators on the feeding mechanism. There are two broaching tool mechanisms for broaching splines of the universal joint forks in the spline broaching device, and a positioning and feeding tooling movably arranged on one side of the broaching tool mechanism. A positioning mechanism and a material pressing mechanism are arranged on the positioning and feeding tooling. Two positioning discs and a material pressing mechanism are arranged on the positioning mechanism. A central positioning cavity for installing the universal joint fork is arranged in the positioning disc. Two material pressing cylinders are arranged on the material pressing mechanism. This device can automatically arrange and feed materials for broaching splines of the joint forks, reduce labor intensity and improve production efficiency.

The utility model discloses a broaching machine automatic feeding and discharging mechanism which comprises a machine table, a feeding unit, a discharging unit, a material waiting platform and a mechanical arm, the feeding unit comprises a feeding lifting table and a feeding stacking bin installed on the feeding lifting table, and a feeding pushing-out mechanism is arranged at the bottom of the feeding stacking bin. The discharging unit comprises a discharging lifting table and a discharging stacking bin installed on the discharging lifting table, the discharging unit comprises a material receiving conveying belt, a jacking platform and a discharging push-out mechanism, the material receiving conveying belt is installed on the machine table, the jacking platform is installed below the material receiving conveying belt, and the discharging push-out mechanism is installed on one side of the material receiving conveying belt; according to the automatic feeding and discharging mechanism of the broaching machine, the feeding stacking bin and the discharging stacking bin can be operated only by descending the feeding stacking bin and the discharging stacking bin to the low position through the feeding lifting table and the discharging lifting table, workers do not need to climb to the high position through stairs for operation, and the efficiency of feeding trays into the stacking bins and taking the trays from the stacking bins is greatly improved; and the safety is improved.

The present application relates to the technical field of tenon groove broaching machines, and provides a vertical multi-axis numerical control tenon groove broaching machine, including: a base and a machine body, on which a rotary table accommodation cavity is provided; an arc-shaped slide rail arranged on the cavity wall of the accommodation cavity of the machine body, and a rotating seat rotatably arranged on the arc-shaped slide rail; a rotary table mounting seat, which is slidably arranged on the rotating seat; a rotary table for fixing the turbine disk to be grooved, the rotary table can be detachably mounted on the rotary table mounting seat, the rotary table has a rotatable drive sleeve, and the drive sleeve is used to pass through the central hole of the turbine disk to be grooved to fix the turbine disk to be grooved. The rotation axis of the drive sleeve is coaxial with the axis of the central hole of the fixed turbine disk; a broach assembly fixing mechanism for fixing the broach assembly and capable of driving the fixed broach assembly to move in the vertical direction. This vertical multi-axis numerical control tenon groove broaching machine can efficiently and conveniently perform tenon groove cutting processing operations on the turbine disk.

The invention relates to the technical field of nuclear power overhaul, in particular to an online machining and repairing device for a nuclear reactor pressure vessel flange sealing surface. The device comprises a base mechanism, a main shaft rotating mechanism, a cutting arm beam and a dust collection mechanism, the base mechanism and the pressure vessel cylinder are coaxially arranged, and the base mechanism is supported on the inner wall of the pressure vessel cylinder; a hole structure is arranged in the center of the base mechanism; the main shaft rotating mechanism is adaptively connected with the hole structure of the base mechanism; the cutting arm beam is horizontally arranged and fixedly connected to the upper end face of the spindle rotating mechanism through a pressing plate, the spindle rotating mechanism drives the cutting arm beam to rotate, and a tool at the head of the cutting arm beam is driven to conduct online machining repair on the nuclear reactor pressure vessel flange sealing face. The shielding mechanism is located on the lower portion of the base mechanism, installed on the hanging basket supporting face in the pressure container and attached to the inner wall of a cylinder of the pressure container. The dust collection mechanism is connected to the side wall of the cutting arm beam, and the dust collection mechanism and the cutting arm beam rotate synchronously. According to the invention, the problem that online intelligent repair cannot be carried out on the flange sealing surface in the maintenance process of the reactor pressure vessel of the pressurized water reactor nuclear power station at present is solved, and the aim of ensuring the sealing performance and integrity of the pressure-bearing boundary of the primary loop through a reliable maintenance means is fulfilled.

The utility model relates to the technical field of engines, and discloses a chamfering device which comprises a guide mechanism and a cutter mechanism, the guide mechanism comprises a first driving assembly and a guide assembly connected with the first driving assembly, and the first driving assembly is used for driving the guide assembly to guide a workpiece to move in the first direction; the cutter mechanism comprises a second driving assembly and a cutter assembly, the cutter assembly comprises a cutter base and a plurality of cutters detachably connected with the cutter base, and the second driving assembly is connected with the cutter base and used for driving the cutter base to move in the second direction. The guide mechanism and the cutter mechanism are arranged, the guide mechanism can adjust the position of the cylinder cover before the cylinder cover enters a chamfering procedure, it is guaranteed that the posture of the cylinder cover is within a reasonable error range, and the cylinder cover chamfering machine can adapt to cylinder covers of different sizes while improving the machining precision; the cutter mechanism can adjust the position of a cutter before the chamfering process, so that the machining precision is improved; and by arranging the detachable cutter, the chamfering requirements of guide pipes on different types of cylinder covers can be met, and the applicability is high.

The present invention discloses a spiral internal broaching machine, comprising: a broaching machine main body, with a lower tool holder for clamping a tool provided at the lower part, the tool holder being connected with a first driving member for driving the tool to rotate around its own vertical central axis, and the broaching machine main body being provided with two vertically extending guide rods; a workbench for supporting and fixing a workpiece and vertically aligning the workpiece with the lower tool holder, the workbench being provided with two sliding holes respectively in sliding fit with the two guide rods; two second driving members, both connected with the workbench, for applying a vertical driving force to the workbench to enable it to slide vertically along the guide rods; wherein, the two guide rods and the two second driving members are both symmetrically arranged relative to the rotation central axis of the tool, and the central axes of the two guide rods, the rotation central axis of the tool, and the two force-receiving centers of the workbench corresponding to the two second driving members are all coplanar. The present invention has the advantages of high machining accuracy and high stability.

The utility model discloses a foot pad, which belongs to the technical field of machining equipment accessories, and adopts the technical scheme that the foot pad comprises a box body, a cover plate and a pre-tightening piece, a containing groove is formed in the box body, the cover plate is arranged at a groove opening of the containing groove and is in sliding fit with the box body, and the pre-tightening piece is arranged in the containing groove. The pre-tightening piece applies pre-tightening force away from the direction of the box body to the cover plate, so that a movable gap is formed between the cover plate and the box body, and the cover plate or the box body is matched to support the machine tool. The foot pad is connected with the machine tool through the cover plate or the box body, so that the machine tool is in contact with the ground through the foot pad, vibration generated when the machine tool works is conducted to the pre-tightening piece through the box body or the cover plate, the pre-tightening piece absorbs the vibration and deforms, the pre-tightening piece deforms through the movable gap, and therefore the vibration of the machine tool is prevented from affecting the working precision of the nearby machine tool through the ground. The utility model further discloses a broaching machine.

The invention belongs to the technical field of machining, and particularly relates to a numerical control broaching machine turbine disc mortise efficient process parameter optimization method which comprises the following steps: S1, mortise surface performance parameter testing; s2, mortise cutting force modeling is carried out, and a broaching force test is carried out to obtain related cutting force coefficients of mortise cutting; s3, performing mortice broaching machine modal analysis and stable region solving; s4, efficient machining parameters of the mortises are determined; according to the numerical control broaching machine turbine disc mortise efficient process parameter optimization method, the numerical control broaching machine turbine disc mortise efficient process parameter optimization method is provided on the basis of the cutting principle, mechanical vibration, deep learning and other theories, the optimized machining process parameter interval can be obtained after influences of various factors in the actual mortise cutting process are fully considered, and therefore the machining efficiency and precision of a mortise broaching machine are remarkably improved.

The invention discloses a machining method for a large-size mortise of an ultra-thick large-specification wheel disc, and relates to the technical field of wheel disc mortise machining. Secondly, semi-finish turning is conducted; thirdly, finish turning is conducted; step 4, vehicle projection test panel; 5, corrosion inspection is carried out; sixthly, wheel disc positioning connecting holes are drilled; 7, cutting the projection disc; 8, cutting a test pulling disc; ninthly, broaching the trial pull disc and the projection disc; tenthly, the wheel disc mortise is roughly cut through linear cutting; eleventhly, a mortise is pulled; twelfthly, the sharp edge of the mortise is rounded; and (13) carrying out coloring inspection. According to the machining method for the large-size mortise of the super-thick large-specification wheel disc, the mortise is machined in a linear cutting and broaching mode, machining of the mortise can be completed only through 22 broaching tools, a large amount of cost can be saved, the manufacturing period of the broaching tools can be shortened, and according to the scheme, electric machining equipment (fast wire feeding) is adopted for roughly cutting the mortise and conducting cutting and trimming once; and a broach is adopted for broaching, and the requirements of a design drawing are met.

The invention relates to a method for manufacturing a barrel (1) for use in a timepiece, the barrel being arranged to pivot about a pivot axis (D) and comprising a flange portion (3) comprising a bearing surface (30) for bearing an inner ring of a spring, from which bearing surface a hook portion (2) projects to engage in an aperture in the inner ring, and the flange portion comprises an end face (20) serving as a bearing of the eyelet when winding the spring, the flange portion further comprising a groove (4) located upstream of the hook portion in the winding direction (S) of the spring for holding an end of the spring, the method comprising the following steps:-taking a bar; -turning the profile of the bar to form at least one cylindrical portion (13) comprising a vertical surface and a horizontal surface; -machining said cylindrical portion using a broaching tool by a plurality of reciprocating translational movements in the direction of the pivot axis of the strip shaft, to form a flange portion comprising a hook portion, a bearing surface and a groove.