219results about How to "Reduce tool change time" patented technology

The invention relates to a diamond coated cutter, which comprises a drill tip, an edge part and a handle part, and is characterized in that: (1) a substrate material is a hard alloy with less than 6 mass percent of Co; (2) the drill tip and the edge part of the cutter are coated with a diamond coating; (3) the head part of the cutter has a drilling and milling integrated structure, the apex angleof the drill tip is double apex angles of 135 degrees and 90 degrees or a disc angle of 5 to 10 degrees, and the thickness of the coated diamond coating is 10 to 30mu m. The coated cutter is manufactured by the following steps of: (1) selecting an appropriate hard alloy substrate material; (2) forming the cutter; (3) pretreating a cutter coating; and (4) preparing the diamond coating on the drilltop and the edge part of the cutter through hot filament chemical vapor deposition (CVD). The phenomena of burrs and obvious surface layer peeling when the coated cutter processes a fiber composite material are avoided.

The invention relates to a numerical control device and a method for controlling the numerical control device. The CPU of the numerical control device calculates the difference between the directional time (Ts) and the rising time of the Z axis origin (Tz). When Ts is greater than Tz, the CPU fast rise along the Z axis at D at the time of t6. T6 is last from Ts to Tz from the time of t4. T4 is the start time of the oriented action on a main shaft. The Z axis rises fast feed D is reduced in speed after the time of t7. The Z-axis fast rising feed E starts at the time of t7. T7 is the time half ahead of the time T8. T8 is the finish time of the oriented action on the main shaft. The head of the main shaft can pass the Z-axis origin at a maximum speed without slowing down.

The invention relates to a system for mixed flow spraying, cooling and lubricating, which is related to the technology for the cooling and lubricating of machine tools and mechanical transmission mechanisms and mainly related to the method for the cooling and lubricating of the heating areas of a cutting heating point, a bearing and other transmission mechanisms by using normal-temperature or low-temperature gas, a proper amount of oil-based cooling and lubricating medium and a proper amount of water-based cooling and lubricating medium in a mixed flow spraying mode. The system is characterized in that a mixed flow sprayer can obtain normal-temperature or low-temperature gas, a proper amount of oil-based cooling and lubricating medium and a proper amount of water-based cooling and lubricating medium from a device for supplying gas, a device for supplying a proper amount of oil and a device for supplying a proper amount of water, and all the fluid can be sprayed and atomized to the heating areas together through a shared spraying nozzle. The system can also adopt a set of device for supplying gas and a plurality of mixed flow sprayers to cool and lubricate the heating areas on all parts of equipment at the same time in different modes such as the single gas spraying mode, the single oil mist spraying mode, the single water mist spraying mode and the mixed gas, oil and water flow spraying and atomizing mode to achieve the purposes of strengthening cooling and lubricating efficiency, reducing temperature rise, reducing cooling and lubricating liquid usage amount, preventing pollution, simplifying equipment structure, realizing multiple function of one system and saving the production site.

The application provides a tool management system and a tool management method. The system comprises a tool life management device, and a tool preparation device and a tool setting gauge which are connected with the tool life management device. The tool setting gauge is used for detecting whether a tool is damaged or not according to a preset detection mode and sending the detection result to the tool life management device, wherein the preset detection mode includes tool tip detection and contour detection. The tool life management device is used for acquiring tool information and getting tool use status and tool experience life information according to the tool information, wherein the tool information includes tool compensation value, main axis load rate, product machining dimension information and tool damage status. The tool preparation device is used for judging whether there is a need to prepare a tool according to the tool use status and the tool experience life information, preparing a tool after determining that there is a need to prepare a tool, and replacing a tool with a spare tool when the service life of the tool reaches the maximum. Through the system and the method, the service life of a tool can be monitored in real time, a tool can be prepared in a timely manner, and the time for tool replacement is reduced.

The invention provides a rotating-tower-type automatic tool changer of a numerical control machine tool. The rotating-tower-type automatic tool changer comprises a tool rest, a rotating tower head, spindle heads, a spindle bevel gear, a tool changing gear, a tool changing motor, a positioning cylinder, an elevating cylinder and a spindle motor, wherein the rotating tower head is installed at a rotating tower head installing position at one end of the tool rest; the tool changing motor is installed at the top of the tool rest; the tool changing gear is installed on a rotating shaft head; a gear disc which is meshed with the tool changing gear is installed at one end of the rotating tower head; a plurality of positioning holes are formed on the gear disc; a plurality of spindle heads are distributed along the circumferential direction of the rotating tower head; one end of each spindle head stretching into the rotating tower head is connected with the spindle bevel gear; the positioning cylinder is installed inside the tool rest; the piston rod head of the positioning cylinder stretches out of the tool rest so as to be matched with the positioning holes; the spindle motor is installed inside the tool rest and is driven to ascend and descend by the elevating cylinder arranged below the spindle motor; and the rotating shaft head of the spindle motor is equipped with the bevel gear matched with the spindle bevel gear. According to the tool changing device, the spindle head is changed by using the transposition of the rotating tower head, so that the automatic tool changing function is realized.

A processing center hydraulic cam linkage reblading structure, comprising a drive wheel and a principal axis device arranged on a lathe body for driving a reblading arm to rotate. The inside of the principal axis device is provided with a spring and a push rod used for releasing knife; a push cylinder and a releasing knife cylinder are fixed on the lathe body; the inner cavity of the push cylinder is communicated with the inner cavity of the releasing knife cylinder by an oil pipe; the outer tip of a piston matched with the releasing knife cylinder is contacted with a push cam and a transmission pair is arranged between the push cam and the drive wheel; the outer end of a piston matched with the releasing knife cylinder is connected with an end shaft of a swaying rod and the other end of the swaying rod is axially connected with the principal axis device; the swaying rod leans on the tip of the push rod. When the drive wheel drives the reblading arm to rotate, the push rod can be pushed by the push cylinder and the releasing knife cylinder for releasing knife at the same time. The power comes from the drive wheel so as to achieve the linkage between the rotation of the reblading arm and the motion of the releasing knife. The structure provided by the present invention has the advantages of flexible and reliable motion, accurate interaction and simple overall structure.

The invention discloses a straw smashing process which comprises the following steps: (1) pretreatment; and (2) smashing treatment. The smashing quality problem, the smashing continuous operation problem and the problem of high smashing cutter cost are solved mainly. The smashing quality problem refers to low fermentation efficiency caused by a too large smashing size (the length and the diameter), high screening difficulty after fermentation, low efficiency, high proportion of disqualified straw screened out and waste caused by secondary repeated smashing fermentation. The smashing continuous operation problem refers to regular production pause caused by the four reasons which are plastic product winding, stone block impact, short service lives of cutters, silting resulting from too high water content of soil and straw, and motor overheating. The problem of high smashing cutter cost refers to high cost caused by a too large cutter use amount resulting from short service lives of the cutters.

The invention related to a compound milling cutter for machining a fir tree type blade root wheel groove, which belongs to the technical field of machinery manufacture. The compound milling cutter comprises a shank part and a cutting part, wherein the tail end of the shank part is fixed with the cutting part, and a spiral groove and a cutting edge are arranged on the cutting part; the spiral groove is spirally arranged on the cutting edge, and a spiral angle is greater than 5 DEG but less than 10 DEG. In the invention, a V-shaped rough milling cutter, a deepen milling cutter and a semi-finish cutter in an original process are combined through optimum design of the cutting edge, rough machining and semi-finish machining of a supercritical steam turbine of 1000MW are completed, tooling and cutter changing time is reduced, and the cutting speed and the feed rate are increased so that the productivity is improved, and the production cost is reduced.

The invention relates to a quick manual tool changing mechanism of a numerical control milling machine, which comprises a tool holder. A cam is installed on the holder, a tool-changing handler is connected to the cam, a mandril is arranged on the lower part of the cam, a bolt connected to the end of the mandril around which springs are provided, a spindle is arranged on the lower part of the tool holder, a pull rod which is on the relative position to the spindle is sleeved inside the spindle, disk springs are provided around the upper end of the pull rod, the upper end of the pull rod is connected with the spindle by locknuts, a cutter fixed seat is connected to the end part of the pull rod, and a taper hole at the end of the spindle is led to the cutter fixed seat. The device greatly reduces the manufacturing and using cost, improves tool changing efficiency of manual changing mechanism simultaneously, and reduces working intensity of labors. The mechanism is not only characterized in high efficiency and low working intensity of a pneumatic tool changing mechanism, but also in simple structure and lower cost of the manual tool changing mechanism.

The invention discloses an engraving and milling machine tool with a servo magazine. The engraving and milling machine tool is characterized in that the magazine is obliquely mounted on a cutter head supporting oblique plane of a cutter head supporting seat, faces a spindle and comprises a turntable, a plurality of sets of jaw groups and shanks, the turntable is parallelly mounted on the cutter head supporting oblique plane of the cutter head supporting seat, the multiple sets of jaw groups are circularly distributed at the peripheral edge of the turntable, and the shanks with milling cutters are clamped on the jaw groups; the set of jaw groups at the lowermost end of the magazine is positioned at a horizontal location. The engraving and milling machine tool has the advantages that the magazine can easily avoid cutter shafts when rotating, the jaw groups can be horizontally shifted after the shanks are mounted on or detached from the cutter shafts in the vertical directions, accordingly, the magazine only needs to rotate on the cutter head supporting oblique plane of the cutter head supporting seat in integral cutter changing procedures and can avoid the cutter shafts without translating in the X-axis direction, cutters can be changed without large spaces, and the integral engraving and milling machine tool is compact in integral structure and small in occupied space; the integral cutter changing procedures are simple, the cutter changing time can be greatly shortened, accordingly, the engraving and milling machine tool is reasonable in structure and low in production cost, and the cutter changing efficiency can be greatly improved.

The invention relates to an interlocking type tool changing mechanical arm device which comprises a mechanical arm body, a claw, an ejector rod mechanism, a spring clamping mechanism and a locking mechanism. The ejector rod mechanism is composed of an ejector rod (11), a U-shaped fork (12) and a spring (5). A slide pin (12) slides in a kidney-shaped hole (19) of the claw (8) so as to push the claw (8) to be opened and closed. The spring clamping mechanism and the locking mechanism are arranged at the tail portion of the claw (8). According to the driven type tool clamping mechanism arm, the ejector rod (11) is triggered by a tool to push the claw (8) to be opened or closed, automatic interlocking is achieved through the locking mechanism when the tool is clamped, the claw is effectively prevented from getting loose, and the tool is prevented from falling and being thrown away; a main shaft and a tool magazine directly push the tool into the mechanical arm, the tool changing time is saved, and work efficiency is high.

The invention provides the technical scheme of a normal pressure hobbing cutter and teeth cutter exchange technological method for compound stratum shield. The technological method comprises the following operation steps of cutter drum washing, oil cylinder fixing, cutter drum bolt loosening, oil cylinder retraction, cutter drum hoisting, gate washing, gate closing, balancing of the pressure difference between the interior and the exterior of a gate, oil cylinder thorough retraction, oil cylinder dismounting and temporary storage, cutter drum complete drawing-out, replacement of a tool on a cutter drum and cutter drum mounting. By adoption of the technological method, a normal pressure hobbing cutter replacement technology and a normal pressure hobbing cutter and teeth cutter exchange technology are successfully achieved for the first time, the cutter replacement time is greatly shortened, cost is reduced, and smooth excavation of a shield tunneling machine is ensured.

The invention relates to a nano-diamond coating cutting tool and the application thereof to mouth rehabilitation ceramic machining. The nano-diamond coating cutting tool is characterized in that (1) the cutting tool is a ball milling cutter, a spiral angle of a spiral groove in a cutting edge of the cutting tool is 30 degrees, and the length of the cutting edge is 2mm; (2) a V-shaped groove is formed in the top of the cutting edge of the cutting tool, a vertical included angle alpha between the V-shaped groove and the center of the cutting tool is equal to 1-5 degrees, an included angle beta is equal to 18-25 degrees, the depth of the V-shaped groove is changed along with the diameter change of the cutting tool, and the depth S value of the V-shaped groove is 10-18 percent of the diameter Phi value of the cutting tool; (3) the cutting edge of the cutting tool is a nano-diamond coating, the diameter of nano-diamond particles is 20-50nm, and the diameter of the head is 2-10mm. When the diameter of the head is less than or equal to 4mm, the diameter of a tool handle is less than or equal to 4mm, and the diameter of a handle part is 4mm; when the diameter of a ball is more than 4mm, the diameter of the handle part is equal to the diameter of the head. When the provided nano-diamond coated cutting tool is applied to pre-sintering ceramic machining for mouth rehabilitation, the feed is 1,400mm / min, and the speed of a main shaft is 25,000rpm. Powder formed by cutting is effectively discharged, the phenomenon of tool breakage is reduced, and the service life is prolonged by 25-30 percent.

The invention discloses a numerically-controlled lathe capable of carrying out self-inspection and waste chip recovery. The numerically-controlled lathe comprises a control device, a chuck, a workpiece, a tool, fixing bolts, a tool array, a radial base, a guide rail and an electronic induction ruler, wherein the radial base is arranged above the guide rail. The numerically-controlled lathe further comprises a main body frame arranged below the control device and the guide rail, wherein telescopic cylinders are installed at the two end heads of the bottom of the main body frame; a rubber pad is arranged at the contact part of the tail end of each telescopic cylinder and the ground; a dust absorption device is arranged below the main body frame between the telescopic cylinders; the dust absorption device is connected with a dust absorption cover arranged on the upper part of the main body frame through a dust absorption hose penetrating through the main body frame; support rods are arranged at the bottom of the dust absorption cover; and a universal wheel is installed at the tail end of each support rod. Adjustment and levelling for the height of the whole lathe can be realized through arranging the telescopic cylinders at the bottom of the main body frame; and waste gas and waste chips generated during a use process of the lathe can be recovered through the dust absorption device, thus random flying of the waste chips is avoided, and the waste chips can also be collected.

The invention discloses a method for configuring alternative and dynamic drive of Z-direction main shafts of a numerically-controlled machine tool with multiple Z-direction shafts and a system for configuring the alternative and dynamic drive of the Z-direction main shafts of the numerically-controlled machine tool with the multiple Z-direction shafts. The method mainly comprises the following steps that: a main shaft knife-changing cylinder is driven by a multi-shaft numerically-controlled control card to allow a reference axis to descend at low speed; the tool-setting on the reference axis is performed by a fixed tool-setting apparatus; a Z-direction tool-setting machine coordinate value jZ1 on the reference axis when a tool-setting in-place signal is triggered by a knife point of a knife on the reference axis, and an X-direction machine coordinate value jX1 and a Y-direction machine coordinate value jY1 which correspond to the reference axis at the moment are recorded; the jX1, the jY1 and the jZ1 are used as the workpiece origin values of the reference axis; and the main shaft knife-changing cylinder is driven by the multi-shaft numerically-controlled control card to enable the reference axis to return to a fixed safety point of the knife. The Z-direction main shafts can machine one workpiece alternatively to finish different working procedures on the same workpiece, so that save knife-changing time can be saved, and further, the machining precision and efficiency can be improved.

The invention discloses a cutter changing platform used for a TMB positive hobbing cutter. The cutter changing platform comprises a hobbing cutter clamping claw, a connecting base connected with equipment, a Z-axis direction motion unit, an X-axis direction motion unit and a Y-axis direction motion unit, wherein motion in a Z-axis direction is realized by a lifting part of a slide platform; a nutlead screw mechanism driven by a motor enables the slide platform to realize motion in an X-axis direction; a Y-direction slide rod arranged on the slide platform drives a nut lead screw mechanism arranged between the motor and the Y-direction slide rod through the motor to drive the hobbing cutter clamping claw to realize motion in a Y-axis direction; a transmission shaft connected with the hobbing cutter clamping claw is connected with a step motor; and the step motor can rotate the hobbing cutter clamping claw to different angles. Under driving of each motor, the cutter changing platform precisely positions a cutter changing position to perform cutter changing work. The cutter changing platform can be used on a cutter changing robot, and avoids potential safety hazards in an existing manual cutter changing process. The cutter changing platform simplifies a cutter changing step, controls the cutter changing process by the controller, and is convenient for remote control.

The invention provides a control device for a servo power turret, which relates to a machine tool. A fully digital DSP processing chip, two central processing units (CPU), an embedded DSP main control module and a turret logical DSP control module are adopted by the device, wherein the embedded DSP main control module is a servo motor position control unit using TMS320LF2407 as a main processor, and the current, the position and the speed of a motor are controlled closely; the turret logical DSP control module is a user input / output management module using TMS320LF2406 as a co-processor; 74HC573 is used as a bus driving chip; and a push-pull output circuit of MOFET is adopted. The servo control turret has high transposition speed, can reduce the tool changing time of the turret, can improve the processing efficiency, the transposition precision and the tool changing accuracy of the machine tool, and can also improve the flexibility and the universality of control.

The invention discloses an automatic tool changing device of a simple numerical control machine center. The automatic tool changing device of the simple numerical control machine center is easy and convenient to operate, reliable in performance and high in working efficiency. The automatic tool changing device of the simple numerical control machine center is composed of a base, a stepping motor, a coupler, a rotating shaft, a rolling bearing, a bearing support, a telescopic cross arm, pneumatic cylinders, clamping mechanisms and a control system. The pneumatic cylinders are arranged at the two ends of the telescopic cross arm. The clamping mechanisms are fixedly connected to main shafts of pneumatic cylinders. The telescopic cross arm is fixedly connected to the upper end of the rotating shaft. The lower end of the rotating shaft is connected with the stepping motor through the coupler. The control system comprises a main controller, a D / A converter, an A / D converter, a stepping motor actuator and an electromagnetic valve.

The present invention provides a machine tool capable of shortening tool changing time and increasing machining production rate. When the machine tool begins to change a tool, a main shaft directionally motions; a main shaft head rises from a machining position to a Z-axis original point with a Z-axis highest speed (S11); when the main shaft finishes the directional motion (S12: YES), the main shaft head rises from the Z-axis original point to an ATC original point with a Z-axis ATC rising speed (S13); when the main shaft head arrives the ATC original point (Z615) (S13), a tool changer performs driving; the tool changer rotates to position the next tool (S14); then the main shaft head decreases from the ATC original point to the Z-axis original point (S15) with a speed same as the A-axis highest speed; and then, the main shaft head decreases from the Z-axis original point to the machining starting position of a workpiece to be machined with a Z-axis highest speed (S16). The machine tool uses a tool to perform machining on the workpiece to be machined.

The present invention relates to a method for loading and unloading a machine tool with tools, the tools being stored in a tool store and being transported via a manipulation device, which is particularly movable along multiple axes, to a transfer position on the machine tool or in the machine tool and being removed therefrom after use, the tools being transported by a gripper device along at least one path in a first main movement direction and in at least one travel lane, which is formed by two rows spaced apart from one another and is inclined to the main movement direction. To shorten the tool changing times, a gripper device of the manipulation device is moved between a loading and unloading position of the tool along at least one continuously running, at least partially curved path.

The invention discloses a machine tool with a spindle tool holder. The machine tool comprises a machine seat. An oblique lathe bed, an X-direction guide rail, an X-direction sliding plate, an X-direction motor, the spindle tool holder and a spindle tool holder drive motor are arranged on the machine seat. The X-direction motor drives the X-direction sliding plate to slide on the X-direction guide rail. The spindle tool holder drive motor drives the spindle tool holder to rotate. A workpiece spindle motor, a workpiece spindle transmission mechanism and a workpiece spindle are arranged on the portion, on the left side of the oblique lathe bed, of the machine seat. A tailstock sliding rail, a tailstock and a tailstock drive motor are arranged on the portion, on the right side of the oblique lathe bed, of the machine seat. The brand-new spindle tool holder is designed, row tools on the machine seat are reduced, the use rate of distributed tools of a cutterhead is increased, the stroke of the machine seat is reduced, and machining efficiency is improved.

The invention belongs to the field of numerical control machining devices, in particular to a manipulator-free device for automatically changing tools under the condition of continuous rotation of a spindle for a machining center. The device comprises the spindle, tool handles, a tool repository and a numerical control system, wherein the spindle is provided with a speed regulating function and a circumferential-position real-time detecting and regulating function; each tool handle comprises an outer tapered handle body coaxially connected with the spindle, a tool body, a bearing arranged on the tool body in a sleeving manner, a groove, an A engaging unit and a tool; the tool repository comprises a plurality of tool positions and a tool position changing unit; each tool position comprises a tool clamp for clamping the corresponding tool, a tool driving motor for driving the corresponding tool to rotate, a circumferential-position real-time detecting and regulating system, and a B engaging unit engaged with the corresponding tool. The device for automatically changing tools under the condition of continuous rotation of the spindle can achieve rapid changes between the tools on the spindle of the machining center and tools in the tool repository under the condition of continuous rotation of the spindle, accordingly, auxiliary machining time during machining of the machining center is saved, the use efficiency of a numerical-control machine tool is improved, the machining cost is reduced, and the application prospect is broad.

The invention discloses a disk-milling main shaft device of a vane-integrated disk numerical control machine tool, which adopts a concave-shaped disk-milling main shaft box structure, wherein a plurality of gear shafts in the box are distributed in parallel; a gear pair on each shaft is a helical gear; the helical gears of the shafts are engaged; the bevel gear pair and the engaged helical gears on the gear shafts transfer power to the disk-milling cutter shaft; a servo motor is arranged on the left upper part of the outer box of the power transmission mechanism to drive a synchronous belt and a worm-gear pair to move; the disk-milling main shaft box oscillates around the axial line; due to application of the tooth coupling structure, safety and reliability in the machining process of the disk milling can be ensured; the disk-milling main shaft device can keep good rigidity under action of high cutting force and high torque; at the same time, the simple cutter-changing structure and form can effectively reduce cutter-changing time; when the disk-milling main shaft device is applied in the processing of the vane-integrated disk, the processing efficiency of the vane-integrated disk can be improved drastically; the processing cost can be reduced; therefore, the device has good application value.

The invention aims to provide a thread milling cutter. When threads are milled, the work efficiency of machining the threads can be effectively improved, and the production cost can be reduced while the product quality is guaranteed. The thread milling cutter comprises a handle part and a blade part, and is characterized in that the blade part consists of a milling blade for milling bottom holes and a forming blade for milling the threads, wherein the milling blade is positioned on the end part of the blade part. When the thread milling cutter is used for milling the threads, the allowance of a workpiece is removed and thread bottom holes are milled by the milling blade, and along with the advance of the milling blade, the threads in the bottom holes are milled by the forming blade; the cutter is not required to be changed in the whole process, so that cutter changing, cutter installing and cutter setting time is shortened; the product quality is guaranteed and the production cost can be reduced.

The invention discloses a multi-mode rolling cutter. The multi-mode rolling cutter comprises a cutter bit and a cutter body which are connected. The cutter body is of a hollow structure. The cutter bit comprises a cutter bit cover connected to the front end of the cutter body. A rolling ball is disposed on the front end face of the cutter bit cover. Part of the rolling ball extends out of the front end face of the cutter bit cover. The part, located in the cutter bit cover, of the rolling ball is supported by three support bearings. The three support bearings are respectively disposed in three grooves in the same surface of a support seat. The included angles among the three grooves are 120 degrees. The support seat is disposed in the cutter bit cover in a floating manner. The support seat contacts with a support plate disposed in the front end of the cutter body. The support plate is matched with a pressure adjusting mechanism which can move in the cutter body. The pressure adjusting mechanism is matched with a self-locking mechanism in the cutter body. A plurality of rolling columns are evenly disposed on the lateral side of the cutter bit cover. The rolling columns extend out of the cutter bit cover. The rolling columns is fixed by a limit mechanism fixed on the inner wall of the cutter bit cover. The multi-mode rolling cutter can roll rotary bodies and planes, cutter changing time is saved effectively, production efficiency is increased, and production cost is lowered.

The invention relates to the technical field of screw compressor rotor production, in particular to a screw rotor production technique. The screw rotor production technique can ensure the machining quality, is short in machining period and low in cost, and comprises the steps of rough turning, rough milling of a molded line, finish machining of an axle spindle, central hole machining, finish machining of a molded surface, key slot milling, drilling and tapping. The screw rotor production technique is characterized in that rough milling of the molded line is conducted on general equipment through a general milling cutter, and finish machining of the molded line is conducted through an adjustable grinding wheel which is formed through finishing of a grinding center of molded surface finish machining equipment.

The invention relates to a broach spindle for a numerical control vertical drill. The broach spindle is arranged in a spindle head body in a penetrating way and can move up and down relative to the spindle head body along the axial direction of the broach spindle, and a pneumatic tool changer is arranged in the broach spindle and comprises a booster cylinder, a push rod, a pull rod and a tool changing mechanism. In the machining process, the pneumatic tool changer is arranged in the broach spindle to carry out pneumatic tool changing by utilizing the booster cylinder, and a tool body is clamped by clamping jaws, so that the tool body is firmer when in use and not easily fall off; the booster cylinder controls the pull rod to move up and down, and the clamping jaws are clamped or loosened by a tension spring, so that the tool clamping and loosening effects are achieved, the tool changing time of the numerical control vertical drill is shortened, and the machining efficiency of the numerical control vertical drill is improved.

The invention relates to a method for machining threads by using a numerical control lathe and a thread machining tool thereof; wherein, the method comprises the following steps: (1) a thread machining tool is adopted and clamped on the cutter head of the numerical control lathe, (2) the sleeve of the tool is adhered to the tool body axially and tightly before machining the thread with a thread pitch of T, (3) during the machining, the axial displacement amount of the cutter head is 88 to 98% T / cycle, (4) the thread machining tool comprises a thread machining cutter, a tool body and a sleeve, and (5) the tool body is sleeve-jointed on the outer flank of the sleeve, the tool body and the sleeve can move correspondingly and axially, and the thread machining cutter is clamped on the front end of the sleeve. The machining method has the advantages of completing the screw thread machining of a plurality of thin and long workpieces continuously in one clamping, automatic processing, high degree of automation, high machining quality and stability, less times of cutter loading, low auxiliary time and machining time, high work efficiency, low machining cost, and low labor intensity of operators.

The invention discloses an industrial robot automobile engine end cover machining flexible production automatic line. The industrial robot automobile engine end cover machining flexible production automatic line comprises an end cover taking and cooling system and a machining system which are arranged beside a die casting machine. The end cover taking and cooling system is arranged on one side ofthe die casting machine, a chamfering milling machine and a double-layer cooling frame are arranged with a material taking robot as the center, and the tail end of the material taking robot is connected with a material taking clamp. The machining system is arranged on one side of the double-layer cooling frame with the machining robot as the center, and the tail end of the machining robot is connected with a special clamp. Various devices are connected into the industrial robot automobile engine end cover machining flexible production automatic line from head to tail through a scrap discharging conveying belt according to the machining technology process. A master control cabinet is arranged on one side of the tail end of the scrap discharging conveying belt outside a fence. The inventionfurther discloses a flexible production method. The industrial robot automobile engine end cover machining flexible production automatic line is long in service life and low in maintaining cost, the tool replacing time is saved, meanwhile, one machine has multiple purposes, the production efficiency is improved, and the equipment usage investment cost is reduced as well.

The invention discloses a tool changing method for a numerical control machine tool. According to the method, when a tool changing program starts, a tool sheath starts to swing, meanwhile, a main shaft starts to move and rotates at the same time, the three actions are performed at the same time, and therefore time is saved. Moreover, according to the method, an in-place signal of a mechanical arm is replaced by a braking signal of the mechanical arm. When the braking signal of the mechanical arm is received, a tool clamping component starts to act immediately, so that action time of the tool clamping component is minimized. The tool changing method can be used for increasing tool changing speed.