114results about How to "Quick tool change" patented technology

The invention discloses a five-axle linkage digital-control processing centre which comprises a lathe bed (10) and a portal frame (30), wherein the portal frame (30) comprises a left portal upright post (32), a right portal upright post (32) and a fixing portal crossbeam (35), and the front part of each portal upright post (32) is provided with a direct driving type double-shaft precise rotating table (20) which enables a working table (26) to simultaneously rotate round an A shaft and a C shaft. Furthermore, the portal frame (30) is provided with a crossbeam (40) which can move along the Y direction, the front part of the crossbeam (40) is provided with a slide carriage (50) which can move along the X direction, the front part of the slide carriage (50) is provided with a main shaft box (60) which can move along the Z direction, the main shaft box (60) is provided with a main shaft installing hole (66) used for installing a main shaft (70), and a tool magazine (80) is arranged in a cavity positioned between the lathe bed (10) and the portal frame (30). The invention has novel structure, small occupied area, space saving, low cost and stable operation and property. Besides, a motion shaft of a machine tool has high dynamic property, regulating property, positioning precision and repeated positioning precision.

A tool having a quick-change mechanism for replacing tool implements on a shaft, post or handle comprising a shaft, post or handle having a flange and a threaded connector. The tool further includes a tool implement adapted to be received on the shaft, post or handle adjacent thc flange. The tool also includes a stabilizer washer adapted to be received on the shaft, post or handle adjacent the work implement. A threaded fastener is adapted to be threaded onto the threaded connector of the shaft, post or handle whereby the tool implement and the stabilizer washer are retained on the shaft, post or handle by the fastener, and wherein the tool implement and the stabilizing washer are configured to allow removal of the tool implement without removing the fastener from the shaft, post or handle.

The invention discloses a longitudinal-torsional resonance ultrasonic vibration device, and relates to the field of ultrasonic processing and precise cutting. The problems that when an existing torsional vibration device applied to milling machining carries out torsional vibration, internal friction of a material loses most energy, and consequently, the torsional amplitude is small, and the energy utilization efficiency is low are solved. The device comprises a ladder type hollow cylinder cone composite body, a longitudinal-torsional conversion hollow cylinder, a pre-tightening bolt, the even number of piezoelectric ceramic pieces and a plurality of electrode pieces; the ladder type hollow cylinder cone composite body is mainly composed of an axial locating shaft, a cylindrical longitudinal-torsional conversion body, a conical torsional vibration amplifying body and a cylindrical longitudinal vibration amplifying body which are coaxially and sequentially arranged and are manufactured into a whole; and the ladder type hollow cone composite body, the longitudinal-torsional conversion hollow cylinder body, the even number of piezoelectric ceramic pieces and the electrode pieces are connected together through the pretightening bolt. The longitudinal-torsional resonance ultrasonic vibration device is used for ultrasonic vibration machining.

A fast tool changing system by means of synchronizing displacement and linkage of a main spindle is provided, wherein when a servo-motor drives the main spindle to raise or drop, two linkage panes, which are provided at two lateral sides of the main spindle respectively and each of which comprises a flat portion and a concave portion defining a height difference, can synchronizing move. The roller wheel, which is provided on a roller wheel adjusting base at a lateral side of the cool magazine, slides on the linkage panel. Because of the heath difference, the swing arm is driven to swing, so that action of fast tool changing by means of synchronizing displacement and linkage of the main spindle can be achieved.

The invention discloses a tunnel face breast wall filter cake construction process for shield compressed air operations. The process includes the steps of 1, preparing for construction, namely connecting an injection system with a plurality of injection holes through an injection pipeline, which are arranged on the outer wall of the upper middle of an earth bin of a shield machine in the peripheral direction; 2, cleaning the bin, namely cleaning the earth bin of the shield machine by a screw conveyer and the injection system; 3, performing graded pressurization, namely performing graded pressurization, including primary pressurization, secondary pressurization, tertiary pressurization and quaternary pressurization, on the inside of the earth bin by the injection system; 4, performing air replacement, namely shutting down the injection system, and replacing bentonite slurry inside the earth bin by air. The construction process is reasonable in design, simple to operate, low in input cost, high in safety coefficient and good in using effect; the practical problem that under the tool-changing severe conditions of loose stratum at the shutdown position of the shield machine, poor self-stabilization capacity of tunnel face earth and the like, existing common tool changing methods fail in changing tools is solved.

The invention discloses a shield machine and a cutter head thereof. The cutter head comprises a cutter head frame, a plurality of main spoke arms and normal-pressure replaceable cutter assemblies. The cutter head frame is provided with a front working surface; a normal-pressure cavity with an inlet and an outlet is defined in each main spoke arm, and the inlets and the outlets are formed in the rear side of the cutter head frame; the normal-pressure replaceable cutter assemblies comprise mounting seats, detachable cutters and replacing components, the cutters and the replacing components are arranged on the mounting seats in such a manner that the cutters and the replacing components can be relatively repositioned in the front-back directions in a switched manner, the normal-pressure replaceable cutter assemblies are arranged on the front surfaces of the main spoke arms, and the replacing components are positioned on the rear sides of the cutters when the cutter head works, so that the cutters can be spaced from the normal-pressure cavities; the replacing components are positioned on the front sides of the cutters when the cutters need to be replaced, so that the cutters can be communicated with the normal-pressure cavities, and the normal-pressure cavities can be spaced from a environment where the front working surface of the cutter head is positioned. The shield machine and the cutter head have the advantages that operators can conveniently enter the normal-pressure cavities, the cutters can be replaced in normal-pressure environments, and accordingly the personal safety of the operators can be guaranteed.

The invention discloses a variable dimension vibrating auxiliary drilling device and a track generation method, and belongs to the field of numerical control machining. The device is composed of an amplitude-change pole, a piezoelectric transducer, a connecting sleeve, a cutter mounting structure, a machine tool mounting cutter handle and a sliding ring. The device is connected with a machine tool spindle through the machine tool mounting cutter handle; the amplitude-change pole adopts a one fourth wavelength conical step type composite amplitude change mode; the piezoelectric transducer adopts a longitudinal bending vibration sandwiching mode and is composed of piezoelectric ceramic pieces, electrode plates, a rear end cover (a reflex housing), insulation spacers and a pretightening force bolt which are connected through the pretightening force bolt in a fastened mode; the amplitude-change pole is connected with the piezoelectric transducer through a pretightening force bolt and connected with the cutter handle through the sleeve; and the sliding ring is connected with the sleeve through a catch bolt, and thus the whole structure of the device is formed. A cutter is fixed to the cutter mounting structure, one-dimensional, two-dimensional and three-dimensional elliptic track output is generated in the position of a cutter nose under control of drive signals of the piezoelectric transducer. The device is simple, stable three dimensional elliptic motion tracks can be generated conveniently, and the device can be directly integrated with numerical control machining machine tools for auxiliary precision drilling machining.

In a method and an engagement sensor device for engagement measurement for a machine tool for processing workpieces using tools or a laser the machine tool possesses a clamping device with a clamping face for clamping an object, in particular a tool or a workpiece and the engagement sensor device is provided for the measurement or engagement of a face of clamped object at the clamping face or any gap between the face of the clamped object and the clamping face. The sensor device comprises at least one engagement sensor, arranged to the side of the clamping face, with a measurement range aligned in the direction of the gap or of the clamping face for the detection of an electrical or magnetic stimulation field, such field extending between the face of clamped object and the clamping face and being able to be influenced by any gap, the measurement range extending essentially along the clamping face in accordance with a depth direction of any gap or parallel to the clamping face.

The invention discloses a linear type automatic tool changing device and method. The tool changing device comprises a protection body, an upper cover plate door covering the protection body in a sliding manner, a side edge small door arranged on one side of the protection body, a rear cover plate installed on the inner side of the side, away from the upper cover plate door, of the protection body, an electric linear sliding table arranged in the protection body and used for sending to-be-replaced tools or vacant tool handle seats to tool feeding positions, a guide rail horizontal-moving tool handle seat module installed on the electric linear sliding table and a guide rail tool feeding module which is installed below the electric linear sliding table, located on the side, close to the side edge small door, of the electric linear sliding table and used for driving the tools or the vacant tool handle seats to stretch out to tool changing positions for tool changing. By means of the linear type automatic tool changing device and method, the manner with the linear movement, the compact structure and sealing metal plate protection is adopted, so that the tool changing device is a set of automatic tool changing device small in overall size, low in weight, wholly sealed and high in positioning precision.

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 relates to the technical field of machining, in particular to an inner wall machining machine tool. The inner wall machining machine tool comprises a machine tool body, a spindle box and carriages. The carriages comprise the carriage I located on the right side of the spindle box and the carriage II located on the left side of the spindle box. One end of a cutter bar is fixed to the carriage I, and the other end of the cutter bar penetrates through a center hole of a spindle of the spindle box to be fixed to the carriage II. The inner wall machining machine tool has the advantages of being capable of machining long workpieces and high in machining precision and machining efficiency.

In order to carry out complete machining of a blank on a machine tool, such as, for example, a rotary miller, the blank is held in at least one clamp during a machining step. All the functional surfaces of the workpiece (circumference and both end faces of the blank) are brought into the final required form corresponding to final use by the machine tool, in particular, the rotary miller. The blank is a blank made from metal or a ceramic material, of cylindrical, square, or polyhedral cross-section, in particular, a rectangular block or any shaped cast or forged blank. The required form is the head of a turbine blade, the blade region of the turbine blade, and the root of the turbine blade, wherein the functional surfaces of the head and root are prepared during a clamped phase on the machine tool.

The invention discloses an aluminum profile machining device based on the Internet of things. The device comprises a bottom plate, a rotating unit, a moving unit and supporting columns. Four corners of an upper surface of the bottom plate are all equipped with the supporting columns, the tops of supporting columns are equipped with processing units, the left side of the upper surface of the bottomplate is equipped with a tool changing unit. The rotating unit comprises a main motor, mounting plates, a rotating shaft and a mounting block; the two mounting plates are arranged, and the bottom ends of the two mounting plates are respectively connected with the front end and the rear end of the upper surface of the bottom plate; the rotating shaft is rotatably connected between the two mountingplates; the front end of the main motor is connected with the rear side surface of the mounting plate at the rear side; an output shaft of the main motor is connected with the rear end of the rotating shaft; the outer side of the rotating shaft is sleeved with the mounting block; and jacks are arrayed on the right side face of the mounting block, and the moving unit is arranged on the outer sideof the mounting block. The aluminum profile machining device based on the Internet of things is convenient to operate, and the machining precision is high, and the degree of automation is high.

The invention discloses a machining center which comprises a main body (1), a driving shaft (2) and a tool magazine (3). The axis of the tool magazine (3) is vertical to the upper surface of a workpiece to be machined (10), the tool magazine (3) is evenly provided with through holes which are concentric and used for containing installation rods (4) of cutters (9), the installation rods (4) are rotatably arranged in the through holes in a sliding and matched mode, the bottom ends of the installation rods (4) are provided with different cutters (9), a transmission capable of being disengaged is arranged between the installation rods (4) and the driving shaft (2), and the tool magazine (3) is provided with a telescopic mechanism which can drive the installation rods (4) to slide up and down to achieve disengaging or connection of the transmission mechanism and can be positioned at any position. By means of the structure, other mechanical arms are not needed for the cutter replacing process and the cutter assembling process, so that the whole cutter replacing process is quicker and machining efficiency is improved.

The invention discloses a low-speed high-torque and permanent-magnet synchronous high-speed automatic tool-changing electric spindle. The electric spindle comprises a motor body, and a stator, a rotor, a rotor shaft, a spring pre-tightening mechanism, a front bearing and a rear bearing are arranged inside the motor body. The electric spindle further comprises a connection base fixed to the rear end of the motor body, a connector fixedly connected to the connection base, a steam cylinder assembly fixedly connected to the connector, a rear cover arranged at the end of the steam cylinder assembly and a front end cover connected to the front end of the motor body. A tool loosening and pulling mechanism is arranged in the center of the rotor shaft, a pulling claw is arranged at the front end of the tool loosening and pulling mechanism, a disc spring assembly is installed in the middle of the tool loosening and pulling mechanism, a high-performance sensor is adopted together, and therefore automatic tool changing is more convenient and accurate and rapider. A magneto-electric coder is adopted at the rear end, so that low-speed torque output is more balanced. Compressed air is adopted for non-contact air sealing so that higher rotation speed can be obtained. The electric spindle is simple and compact in structure and powerful in function, is smaller than common electric spindles with the same power in size, has the advantages that the speed is low and the torque is high and can be widely applied to high-speed and low-speed precision machining of various materials.

A hot forming tool for the production of a press hardened sheet steel product includes an upper tool and a lower tool. At least one of the upper and lower tools has a base plate, a carrier tool mounted on the base plate, and a mold segment exchangeably received in the carrier tool and configured specific to the sheet steel product.

The invention provides a combined fork-shape blade-root milling cutter. It has a shaft with at least two discoid cutter bodies. At least two blades are equipped along circumferential direction on the outer fringe of the discoid cutter bodies. On the two side disk surfaces of the discoid cutter bodies set at least two turnable blades respectively. The outer fringes of the cutter is connected with the blade by keys. The rotary blades have 5-8 cutting edges. The advantages of the milling cutter are: joint of the outer fringe of the discoid cutter bodies and the blades has high intensity. The cutter body has long service life. With 5-8 cutting edges, each rotary blade improves its service life. It changes blade quickly, has high precision and reliable positioning and can save materials.

The invention discloses a pentahedron processing machine which comprises an X-axis platform, a Z-axis platform, a tool magazine device, a first rotating table, a second rotating table and a third rotating table. Three-dimensional space rotation of a work piece is carried out by utilizing the rotating functions of the three rotating tables, and a good operation interface allows the programming difficulty of a pentahedron processing technique to be reduced; a tool changing arm, along with a tool changing library, is adopted for tool management, so that tools can be changed quickly and randomly, and the processing efficiency of a machine tool can be improved; and the three hydraulically driven rotating tables are adopted, the first rotating table is a base table, the second rotating table and the third rotating table that are hydraulically driven are additionally arranged on the upper surface of the first rotating table, the first rotating table allows the work piece to rotate at the Z-axis, the second rotating table and the third rotating table allow the work pieces to rotate at horizontal shafts, through the rotation of the three rotating tables, processing equipment capable of processing the five surfaces of the work pieces is formed, and the work pieces can be exchanged, so that the processing efficiency is higher.

The invention discloses a mirror finishing hard alloy cutter and the manufacture method. The cutter consists of a cutter rod and a hard alloy blade which is welded on the cutter rod. The invention is characterized in that after the hard alloy blade is grinded with the cutter rod, at least one hard alloy blade surface and a corresponding cutter rod surface are arranged on the same plane; after the hard alloy blade is grinded, the surface roughness is ranging from 0.012 Mu m to 0.4 Mu m. The invention has the advantages that one surface of the hard alloy blade is arranged on the same plane with one surface of the cutter rod, thus ensuring the stability and consistency of the dimension of the cutter; workers has no needs to re-adjust the central point of the cutter and improves production efficiency by directly arranging the cutter; the hard alloy blade has high-precision cutting surface, good processing performance, good chipping discharging effect, long service life, high processing precision and surface smoothness of the product; the quality of the product is obviously improved and the practicability is strong.

The invention relates to a multi-shaft high-speed numerically controlled lathe. The multi-shaft high-speed numerically controlled lathe comprises a slant bed lathe body which is provided with a main machine and a slant bed body assembly. A four-station electric tool carrier and a lathe spindle are mounted on the slant bed body assembly, wherein an additional machining shaft system assembly which is arranged perpendicular to the lathe spindle is further mounted on a spindle box; a second fixed seat is arranged on the lateral side of the slant bed body assembly on the main machine; and an auxiliary centering assembly opposite to the lathe spindle is mounted above the second fixed seat. According to the multi-shaft high-speed numerically controlled lathe provided by the invention, a machining shaft is additionally arranged; on the basis of the original machining shaft which machines an excircle, the additionally arranged machining shaft can perform operations such as chamfering and groove milling simultaneously, so that the production efficiency and the machining precision are greatly improved; the auxiliary centering assembly is a three-finger pneumatic finger, and a guide rail and sliding tables are arranged at the bottom of the three-finger pneumatic finger, so that a cantilever of the centering assembly can be prevented from being overlong, and the stability of the centering assembly is greatly improved.

The invention relates to a machine tool having a motor spindle for machining a workpiece (9). The machine tool is provided with a motor spindle (2) used for rotating around an axis of the spindle (20) and driving a cutter. The motor spindle (2) is supported by a support (3). A rotary bearing (4) is provided on the support (3) and the motor spindle (2) can be swivelled and positioned on the rotary bearing about a first axis (A) of rotation. On the motor spindle (2) is a linear guiding device (21) according to the invention, which allows an advancing movement of the tool parallel to the spindle axis (20). The machine tool has a workpiece bracket (90) which can be moved and positioned along a preferably horizontally oriented workpiece guiding device (30) and can be rotated and positioned about a second axis (Y) of rotation

The invention provides a bearing bush machining platform with high micromachining precision. The bearing bush machining platform comprises a machining platform body, a top fixing plate, a bearing bush, a driving motor, a tool table, a rotating motor, an operating panel and a storage battery. The top fixing plate is fixedly mounted at the top of the machining platform body. The bearing bush is fixedly mounted in the middle in the machining platform body. The driving motor is fixedly mounted at the top of the inner wall of the top fixing plate. The tool table is fixedly mounted at the bottom ofthe driving motor. The rotating motor is fixedly mounted behind the machining platform body. The operating panel is fixedly mounted on the right side of the top of the rotating motor. The storage battery is fixedly mounted at the bottom of the right end of the rotating motor. First sliding grooves are embedded in the two sides of the top of the machining platform body correspondingly. The bearingbush machining platform with the high micromachining precision is provided with a grinding roller, the inner diameter of the bearing bush can be finely ground through rotatable connection of the rotating motor and the grinding roller, thus the machining precision of the bearing bush is further improved, practicability is high, the invention is suitable for production and use of the bearing bush machining platform, and the bearing bush machining platform has good development prospects.

The invention discloses a fast positioning device applied to an automatic feeding drill. The fast positioning device comprises a screw frame (4) used for being connected with an external screw device and providing feeding pushing force for the fast positioning device during working. A front section guiding assembly (2) is used for achieving the slight movement of a hole forming cutter in the axial direction. A rear section locking assembly (3) is used for achieving connection between a straight handle pneumatic drill body and the front section guiding assembly (2) and matched with the screw frame (4) through a universal bearing, it is guaranteed that the external screw device stably transmits the feeding pushing force to the hole forming cutter, the hole forming cutter is guided through the front section guiding assembly (2), and it is guaranteed that under the situation that the cutter is subjected to large axial force and torque, a pneumatic drill is prevented from playing and swinging in the axial center line direction, and the task of drilling laminated materials is smoothly finished. By means of cooperation of the front section guiding assembly (2) and the rear section locking assembly (3), the pneumatic drill carries out stable feeding in the drilling process, and cutter clamping does not exist.

The invention provides a rapid cutter replacing and automatic clamping type numerically-controlled hydraulic flanging machine. The machine comprises a base body, an upper pressing mechanism, a lower pressing mechanism and a flanging mechanism, wherein the upper pressing mechanism, the lower pressing mechanism and the flanging mechanism are arranged on the base body; the upper pressing mechanism is that an upper pressing cutter mechanism is arranged at the upper part between side supports of the base body; the lower surface of the upper pressing cutter mechanism is connected with an upper pressing cutter rack sliding block mechanism which is provided with an upper pressing cutter; the upper pressing mechanism can move up and down along two sides of the base body; the upper pressing cutter mechanism is provided with a rapid cutter replacing and automatic clamping device; the lower pressing mechanism is that a lower pressing cutter fixing rack which is provided with a lower pressing head is arranged between the side supports, below the upper pressing cutter, of the base body; the flanging mechanism is that a flanging angle cutter rotating shaft is arranged above the lower pressing cutter fixing rack and between the side supports, below the upper pressing cutter, of the base body; one end of the shaft is provided with a device capable of controlling the rotating angle of the flanging angle cutter rotating shaft; a flanging angle cutter fixing rack mechanism provided with the flanging angle cutter is arranged on the flanging angle cutter rotating shaft. With the adoption of the machine, workpieces with different width can be flanged to form different flanging shapes; the cutter can be quickly and conveniently replaced; and the accuracy, the efficiency, the quality and the safety are high.

The invention relates to a high-speed ultrasonic automatic tool changing motorized spindle. The high-speed ultrasonic automatic tool changing motorized spindle is provided with an ultrasonic spindle body. The ultrasonic spindle body comprises a machine shell, a rotor shaft coaxially arranged with the machine shell, and a machining tool fixed to one end of the rotor shaft and connected with the end of the rotor shaft through nuts and an elastic contracting chuck. An ultrasonic tool handle is arranged at the front end of the rotor shaft. The rear end of the rotor shaft extends into the rear end of the machine shell. A built-in type assembly chamber is arranged in the ultrasonic tool handle. A built-in energy converter is detachably mounted in the built-in type assembly chamber. An ultrasonic generator is mounted on the upper portion of the ultrasonic tool handle and comprises an L-shaped combined support, a planar adjusting support and a vertical adjusting support, and the planar adjusting support and the vertical adjusting support are mounted on the combined support. The planar adjusting support passes through a fixed ring and then is coupled with a movable ring on the ultrasonic tool handle. A gap is formed between the fixed ring and the movable ring. A driving motor is directly connected with the ultrasonic spindle body and the ultrasonic tool handle, and the spindle has the characteristics that the ultrasonic spindle body and the ultrasonic tool handle are mutually independent, and application is convenient.

The invention discloses a numerical control cutting machine capable of rapidly changing a cutter. The numerical control cutting machine comprises a main body and a motor, wherein a base is fixed at the lower end of the main body, a portal frame is fixed on the two sides of the upper surface of the base, a transverse driving lead screw is connected to the upper end of the inner side of the portal frame, a movable block sleeves the surface of the transverse driving lead screw, a lifting air cylinder is fixedly arranged at the lower end of the movable block, the lower end of the lifting air cylinder is connected with a cutting motor, a cutting head is fixedly arranged below the cutting motor, a cutting knife is embedded in the bottom surface of the cutting head, a fixing screw rod is insertedinto the cutting head, and a longitudinal sliding rail penetrates through the upper surface of the base. According to the numerical control cutting machine capable of rapidly changing the cutter, thecutting knife can be randomly replaced according to the cutting requirements of a workpiece, the cutting knife which meets the requirements is replaced, the fixing screw rod is inserted into the cutting knife, and the cutting knife and the cutting head are fixed, so that the flexibility and the application range are improved; and the numerical control cutting machine is suitable for production and use of the numerical control cutting machine capable of rapidly changing the cutter, and has a good development prospect.

The invention discloses a vehicle front axle machining system and a machining method, and the vehicle front axle machining system which completes the procedures of feeding, positioning, punching and the like comprises a feeding device, a clamping device, a transfer exchange platform and a machining tool. The three sets of transferring and transferring platforms are arranged below the feeding device, below the detecting and positioning device and at the position of the machining tool correspondingly and are the first transferring platform, the second transferring platform and the third transferring platform correspondingly. The feeding device transfers a front axle of a vehicle to be processed to the position of the clamping device, and after the front axle of the vehicle is clamped, a workpiece is transferred to a machine tool through the transfer exchange platform to be machined. After the front axle of the vehicle is transferred to the clamping device to be clamped, the front axle of the vehicle to be processed and the clamp supporting plate are transferred to the next processing unit together to complete the processing procedures of positioning, drilling and the like. And clamping does not need to be released, the time for receiving the workpiece and transferring the workpiece to the next working procedure is shortened, and the clamping and transferring efficiency is improved.

The invention puts forward a driving mechanism of an electric main shaft lock blade, which comprises a motion actuator, a harmonic reducing mechanism and an unlocking blade servo motor, wherein the unlocking blade servo motor drives the harmonic reducing mechanism, and the motion actuator has the structure that a ball screw rod is processed on a low-speed shaft of the harmonic reducing mechanism, the ball screw rod is matched with a screw rod nut, and the screw rod nut is connected to a slide sleeve by a guiding key; and a push plate is connected to a slide shaft by screws, and the upper part of the push plate is connected to a supporting body by screws and a spring in order to separate the slide shaft from a push shaft. The harmonic reducing mechanism drives the motion actuator, and pushes a pull rod and a jaw of the driving mechanism of the electric main shaft lock blade to move to left so as to realize blade unlocking; and the low-speed shaft is driven by reverse rotation of a flexible gear of the harmonic reducing mechanism, the motion actuator is then driven to return, and the pull rod of the driving mechanism of the electric main shaft lock blade is returned under force of a belleville spring to realize blade locking. The driving mechanism of the electric main shaft lock blade provided by the invention drives the pull rod by the unlocking blade servo motor, the harmonic reducing mechanism and the motion actuator and finally realizes the purpose of quick blade changing.

A wheeled trolley carries various tools across an object to be worked. A track attaches directly to the work and simultaneously isolates the tool from the work. A standard connection to the trolley readily accommodates a variety of diverse tools, using a keyway or the like to ensure accurate and repeatable placement of the tools. A preferred contouring guide allows a tool to be moved through an arc, where the focal point of the arc may be set to produce an infinite variety of custom shapes, bevels or angles of cut. An upper stop is provided which readily sets the break line between surface finish and edge contour. An adjustable tool carriage allows control over both position and force, including preloading a work tool with force. Resilience is incorporated into the apparatus to accommodate diverse hardness and abrasion characteristics, and, in at least one embodiment, to enable the track to accurately follow a warped or sagging work piece.