151 results about "Notching" patented technology

The invention discloses three-dimensional diversified notching equipment with an adjustable notch, and relates to the technical field of notching equipment.The three-dimensional diversified notching equipment comprises a rack and an adjusting mechanism, the adjusting mechanism comprises a supporting plate, an air cylinder is installed in the middle of the outer side of the supporting plate, and a sliding sleeve is fixedly installed at the telescopic end of the air cylinder; a bending guide rod is fixedly installed at the position, close to the sleeve, of the side of the outer side of the sliding sleeve, a cross beam is fixedly installed in the middle of the outer side of the sliding sleeve, a notch assembly is installed at the position, close to the linear driver, of the bottom of the cross beam, and the notch assembly comprises a C-shaped sliding block, and a flat plate is fixedly installed at the bottom of the C-shaped sliding block; and rotating connectors are installed at the corresponding positions of the outer sides of the flat plates, servo motors are installed at the rotating ends of the bottoms of the rotating connectors, and cutting cutterheads are fixedly installed at the output ends of the servo motors. According to the three-dimensional diversified incision equipment with the adjustable incision, the adjustable effect is achieved, the incision can be adjusted, the incision is diversified, and cutting is safe and reliable.

The invention relates to the technical field of bottle cap notching equipment, in particular to automatic high-speed notching equipment for anti-theft threaded bottle caps, which comprises a notching machine main body, a cutting disc is mounted at one end of the notching machine main body, a rotating shaft is rotatably connected to the center of the top of the cutting disc, and a rotating disc is rotatably connected to the top end of the rotating shaft. A first motor is embedded in the position, located at the cutting disc, of the interior of the notching machine body, a cutter table is installed at the position, located on one side of the rotating shaft, of the top of the cutting disc, a cutting blade is clamped to the top of the cutter table through a locking mechanism, and a scrap removing and recycling mechanism is installed on one side of the outer wall of the notching machine body. The bottle cap cutting device is simple in structure and convenient to operate, workers can conveniently and rapidly disassemble and assemble the cutting blade for maintenance and overhaul, bottle cap chippings generated during cutting can be automatically sucked, the subsequent cutting effect is guaranteed, the labor amount of the workers is reduced, and the working efficiency is further improved.

The utility model provides a plastic bucket forming and notching device which comprises a working table, a plurality of supporting legs are fixed to the bottom of the working table, a portal frame is fixed to the working table, a placing table is fixed to the working table, a blocking seat and a jacking plate are arranged on the placing table, and the bottom of the blocking seat is fixed to the placing table. A limiting column and a lead screw are arranged on the side wall of the portal frame in a penetrating mode, the limiting column is slidably connected with the portal frame, a supporting sleeve is movably arranged on the portal frame through a bearing, the lead screw is arranged in the supporting sleeve in a threaded mode, and the lead screw and the limiting column are fixedly connected with the jacking plate. A worm gear is installed on the supporting sleeve, two limiting seats are fixed to one side of the portal frame at intervals, and the worm is meshed with the worm gear, and the problems that in the prior art, a mechanism for fixing a plastic barrel is lacked, so that the plastic barrel deviates during cutting, and consequently cutting is inaccurate or directly fails are solved.

An automatic flat fork pipe groove pressing notch bending press comprises a feeding mechanism and a forming mechanism, the feeding mechanism comprises a hopper and a conveying belt, workpieces are placed in the hopper, 2-4 steps are arranged in the hopper, corresponding step-shaped lifting frames are arranged on the backs of the steps and driven by a feeding lifting structure to ascend and descend, and the conveying belt is driven by a conveying motor to operate. The forming mechanism comprises a machine frame composed of an upper plate and a bottom plate, a groove pressing station, a groove cutting and punching station, a notch cutting station and a bending station are arranged on the machine frame, and a piece clamping mechanical arm, a groove pressing mechanical arm, a groove cutting and punching mechanical arm, a notch cutting mechanical arm and a bending mechanical arm are correspondingly arranged in the machine frame. The workpiece clamping manipulator, the groove pressing manipulator, the grooving and punching manipulator, the notching manipulator and the bending manipulator clamp workpieces, the workpieces are driven by the translation mechanism and the lifting assembly to translate left and right and lift up and down, a piece plugging mechanism is further arranged beside the groove pressing station, a workpiece pushing mechanism is arranged beside the notching station, and a front-back moving mechanism is arranged on the notching manipulator.

The utility model discloses a notching machine for glass processing, which comprises a cutting table, a moving groove is arranged on the cutting table, a moving seat is movably arranged in the moving groove, the upper end of the moving seat penetrates through the moving groove and is fixedly connected with a fixed seat, a clamping groove is arranged on the fixed seat, and a bidirectional lead screw is rotatably arranged in the clamping groove. One end of the bidirectional lead screw penetrates through the clamping groove to be fixedly connected with a first motor arranged on one side of the fixing base, two clamping bases are connected to the bidirectional lead screw in a threaded mode, the upper end of each clamping base penetrates through the clamping groove to be fixedly connected with an L-shaped clamping plate, an electric push rod is arranged at the upper end of each clamping plate, and the driving end of each electric push rod penetrates through the corresponding clamping plate to be fixedly connected with a pressing plate. According to the glass product cutting device, a glass product needing to be cut can be rapidly clamped and fixed, a worker does not need to screw a plurality of bolts, time is saved, operation is easy, the working efficiency of cutting the glass product is improved, and meanwhile, a pressing plate is arranged, so that the fixing stability of the glass product can be improved through the pressing plate.

The utility model discloses a notching and corner cutting machine with a height-adjustable baffle, which comprises the baffle arranged on a paper feeding platform, the baffle automatically adjusts the distance between the baffle and the paper feeding platform according to the thickness of a paperboard, and when the paperboard enters a notching and corner cutting device through the lower part of the baffle, the baffle always abuts against the top of the paperboard. The paperboard grooving and corner cutting device has the effect of improving the safety of paperboard grooving and corner cutting.

A notch cutting system includes a cutter guide that connects to a workpiece and establishes a cutting path for notching the workpiece. A notch cutter with a cylindrical cutting element engages the cutter guide. A rotary driver rotates the cutting element to remove workpiece material as the notch cutter traverses the aperture and the notch cutting system cuts a full-radius notch in the workpiece along the cutting path.

The utility model provides a steel pipe notching device for steel pipe production. The steel pipe notching device comprises a machining table, an adjusting assembly is arranged on the right side of the top of the machining table, and a fixing assembly is arranged on the left side of the top of the machining table; the adjusting assembly comprises an arc-shaped groove formed in the top of the machining table, and a cutting table is arranged on the inner side of the arc-shaped groove in a left-right sliding mode in the length direction of the arc-shaped groove. According to the steel pipe notching device for steel pipe production, the whole cutting table is rotated to drive the protractor to rotate, when the pointing needle points to the needed position, the cutting table is stopped rotating, the positioning rod stops sliding on the inner side of the sliding groove, the two threaded sleeves are rotated inwards to fix the position of the connecting sleeve, and therefore the cutting table is fixed. The position of the whole cutting table is fixed, deviation of an angle notch caused by displacement of the cutting table during notch cutting is prevented, the structure is simple and practical, the requirement for notch cutting at any angle of a steel pipe is met conveniently, time and labor are saved, and adaptability is high.

The utility model relates to the technical field of filter element production, in particular to a filter element framework and end cover welding structure which comprises a plurality of notches arranged at the end of a framework and distributed along the circumference of the framework, adjacent notches enclose to form teeth, the teeth are used for being bonded with the end cover after hot melting, and the notches are suitable for overflowing and filling of hot melting soft materials. The welding quality detection structure comprises the waterproof film, the waterproof film and the non-woven fabric are stacked and then wound around the end of the framework, the end, close to the end cover, of the waterproof film extends out of the end of the non-woven fabric and is connected to the framework in a hot melting mode, and the end, away from the end cover, of the waterproof film extends to the position where the permeable function of the filter element is not affected. The waterproof film is used for resisting water when the framework is inserted into water to detect whether water infiltrates inwards at the welding position or not. A circle of tooth shape is made at the contact position of the framework and the end cover, molten soft materials of the framework and the end cover enter gaps between adjacent teeth under the action of extrusion force and are solidified, the soft materials extruded to the edge are reduced, and the soft materials are prevented from being far away from a hot plate and cooled to become low-temperature soft materials to participate in welding.

The invention relates to a bimetal composite plate forming die for manufacturing a bull-eye bearing. According to the die, the bull-eye bearing is manufactured by adopting a double-layer metal belt formed by a base alloy and a copper layer; the die is characterized in that the die comprises an upper die plate, a lower die plate and a guide pillar and guide sleeve structure arranged between the upper die plate and the lower die plate; a notching station, a straightening and reaming station and a cutting station are sequentially arranged between the upper die plate and the lower die plate in the horizontal direction. The forming of the round hole in the bimetal composite plate is completed by pre-punching of the round hole a and reaming of the round hole b on the die, and is realized by two dies, so that the situation of dislocation of bimetal layers at the round hole caused by different elongation rates due to different metal materials during one-time forming of the round hole in the bimetal composite plate is prevented.

The utility model discloses supporting strip notch sawing equipment, which relates to the technical field of cutting equipment and is used for cutting a notch on a supporting strip with a rectangular cross section. Comprising a supporting mechanism, a limiting mechanism, a cutting mechanism and a movement control mechanism, and the supporting mechanism comprises a rack and a workbench arranged on the rack; the limiting mechanism comprises an X-direction limiting mechanism, a Y-direction limiting mechanism and a Z-direction limiting mechanism which are all arranged on the workbench. The cutting mechanism comprises a driving mechanism arranged on the rack, a rotating shaft in transmission connection with the driving end of the driving mechanism, and at least one group of saw blades arranged on the rotating shaft; a penetrating groove for the saw blade to pass through is formed in the workbench; and the driving mechanism is connected with the movement control mechanism. The X-direction limiting mechanism, the Y-direction limiting mechanism and the Z-direction limiting mechanism are installed on the workbench, the supporting strip can be fixed to the workbench, the cutting mechanism can conveniently cut a notch with the needed size in the supporting strip, and follow-up assembling of the supporting strip is facilitated.

The invention relates to the technical field of concrete scabbling, in particular to scabbling equipment which comprises a scabbling head and a scabbling mechanical structure. The scabbling head comprises a scabbling box and a scabbling driving unit, and the scabbling driving unit is mounted on the scabbling box; the chiseling box comprises a bottom plate and an annular shell, and a plurality of arc-shaped grooves are uniformly formed in the bottom plate; the scabbling driving unit comprises a driving shaft, a plurality of conversion driving gears and a plurality of scabbling drills, and the scabbling drills are arranged in the corresponding arc-shaped grooves and can move in the arc-shaped grooves; the driving shaft is meshed with a plurality of conversion driving gears, conversion driven gears are coaxially and fixedly arranged on all the chiseling drills, all the conversion driving gears are meshed with all the corresponding conversion driven gears, and the problem that the movement mode of a single rotary drill bit adopted by existing equipment is limited is solved; the technical problems that the operation coverage range is limited, high-strength aggregate or reinforcing steel bars are prone to clamping stagnation, and driving components are damaged exist.

The utility model discloses an O-shaped rubber seal notching die, which belongs to the technical field of notching dies, and comprises a lower die and an upper die arranged above the lower die, a plurality of screw holes are arranged at the top end of the lower die, a positioning rod inserted in the upper die is fixed at the top end of the lower die, and the screw holes are arranged in the positioning rod. The top end of the positioning rod is sleeved with a spring abutting against the upper die, a base is inserted into the screw hole in a threaded mode, a sealing ring containing groove is formed in the top end of the base, a notch base is fixed to the bottom end of the lower die, a connecting base is fixed to the notch base, and an inner ring cutting knife and an outer ring cutting knife are fixed to the bottom end of the connecting base. According to the O-shaped rubber sealing notch die, an outer ring and an inner ring of a rubber ring can be conveniently and synchronously cut, the situation that errors occur and the rubber ring is broken due to the fact that the inner ring and the outer ring are cut separately is avoided, and the cutting convenience of the O-shaped rubber sealing ring is improved.

The invention provides a plastic film bag rolling front blowing device which comprises a base, a support, a cutting knife and a blowing pipe, a first driving cylinder is rotatably hinged to the lower portion of the base, a second driving cylinder is arranged on the upper portion of the left side of the base, and the support is installed on the right side of the upper portion of the base; the support is rotationally hinged to the base and the driving rod end of the first driving cylinder through the connecting rod mechanism, the first driving cylinder drives the support to rotate on the base through the connecting rod mechanism, the notching knife is fixedly installed at the driving rod end of the second driving cylinder, and the air blowing pipe is fixedly installed at the upper end of the support. Automatic notching of the notching knife is achieved through the second driving cylinder, inserting and retreating of the air blowing pipe are achieved through the first driving cylinder and the connecting rod mechanism, meanwhile, when the air blowing pipe retreats, the traction direction of a film bag is avoided, partial automation of the blowing procedure before the plastic film bag is rolled is achieved, and a foundation is laid for full automation of a film bag production line.

A press notching apparatus related to one embodiment of the present invention comprises: an upper mold that includes a first cut part for processing an electrode tab on a first uncoated part of a coated electrode, and a second cut part disposed to be spaced a predetermined interval apart from the first cut part in the width direction of the coated electrode so as to process a second uncoated part of the coated electrode; and a first length-adjusting part for connecting the first cut part and the second cut part, and moving the first cut part and / or the second cut part in the width direction of the coated electrode in order to adjust the interval.

The invention relates to the technical field of paper tube production, in particular to a paper tube polishing and notching integrated device which comprises a base, a first air cylinder and a second air cylinder are arranged in the base, and a polishing clamping assembly and a notching clamping assembly are arranged at the output end of the first air cylinder and the output end of the second air cylinder correspondingly. The transmission belt assemblies are arranged on the two sides of the polishing clamping assembly and the notching clamping assembly, the polishing assemblies are arranged on the two sides of the polishing clamping assembly, and the positioning assembly and the notching assembly are arranged on the two sides of the notching clamping assembly. The device is arranged at the tail end of a paper tube production line and used for polishing and notching of the paper tube, the use requirement that a notch is formed in the end of the paper tube for spinning and used for winding thread residues is met, compared with an existing paper tube punching device, the device utilizes the stepping motor to adjust and change the stress position of the core mold, the utilization rate of the core mold is increased, and in addition, the device is high in automation degree and high in efficiency. The efficiency is high.

The utility model discloses a traction pipe notching device for pipeline extrusion bonding traction, and relates to the technical field of pipeline production equipment, the traction pipe notching device for pipeline extrusion bonding traction comprises a notching assembly, a mounting rack, a height adjusting mechanism and a protection mechanism which are distributed above a traction pipe, and a supporting mechanism distributed below the traction pipe, the notching assembly comprises a cutter and a hydraulic driving cylinder, the notching assembly and the protection mechanism are integrally connected to a lifting block of the height adjusting mechanism through a mounting frame, and the notching assembly and the protection mechanism are obliquely arranged in the notching direction of the traction pipe. Through the arrangement of the cutting assembly, the mounting frame, the height adjusting mechanism, the protection mechanism and the supporting mechanism, the device can be fixed on a vacuum box and adjusted at any time, cuts a traction pipe needing to be cut, automatically cuts the traction pipe under the driving of the hydraulic driving cylinder to form a horseshoe-shaped cut, is simple to operate, saves time and labor, and improves the production efficiency. And the height can be adjusted to cut traction tubes with different sizes, and the application range is wide.

The utility model relates to the technical field of aerated block slotting, and discloses a tool for slotting aerated blocks, which comprises a handle, a protective cover fixedly connected to one end of the handle, a power line fixedly connected to one end, far away from the protective cover, of the handle, a switch mounted on the top of the handle, an equipment bin arranged on one side of the surface of the protective cover, and a cutting disc rotatably connected to the inside of the equipment bin. A rotating mechanism for rotating the cutting disc is arranged in the cutting disc, a bottom plate vertically slides at the bottom of the handle, a notch is formed in the surface of the bottom plate, the cutting disc is arranged in an equipment bin in the notch, and a sliding mechanism for sliding the bottom plate is arranged in the handle. According to the grooving device, the grooving device can be used for grooving by rotating the cutting disc, meanwhile, the grooving depth can be controlled by being matched with vertical sliding of the bottom plate, the adjusted height can be seen by observing graduated scales on the surfaces of the two prompt plates, and therefore the grooving effect can be improved.

The utility model discloses a sealing check ring notching tool, and relates to the technical field of check ring machining equipment. The guide reset assembly is arranged on the bottom plate; the upper plate is vertically arranged on the guide reset assembly in a sliding mode, and a plurality of tool rest grooves are formed in the upper plate; the knife rest is detachably arranged on the upper plate, and a blade is detachably arranged at the bottom of the knife rest; the connecting plate is arranged on the bottom plate; the blade is aligned with the cutting groove along the guide reset assembly to conduct downward cutting, automatic alignment is achieved, the guide reset assembly can guide the blade and automatically reset the blade after cutting is completed, the time for alignment again after cutting is completed every time is saved, the working efficiency is improved, sealing check rings of different specifications are adapted by replacing the sleeve column, and the production cost is reduced. The cutting requirements in different directions are met by changing the position of the blade in the cutting groove.

The utility model relates to the technical field of printing notching machines, and discloses a printing notching machine convenient to adjust cutting distance, which comprises a working table, a support frame is arranged at the top of the working table, adjusting components are arranged on the inner side and the outer side of the support frame, a cutting tool is arranged above the working table, and the cutting tool is arranged on the working table. The adjusting assembly comprises a mounting base, a connecting block, a guide rod, a supporting block, a lead screw, a gear motor, a connector, a hydraulic cylinder, a fixing piece, a threaded barrel and a bolt. According to the printing notching machine convenient to adjust the cutting distance, a one-way thread transmission structure is formed through the design of a gear motor, a lead screw and a supporting block, a mounting base limited by a connecting block and a guide rod in a sliding mode is matched to serve as a bearing structure, and after the lead screw rotates, a connector can be directly driven to drive the mounting base to move front and back, so that a cutting tool is pulled to move synchronously; movement of a cutting part is separated from a machining area, the effect of accurate adjustment is achieved, and operation and use of workers are further facilitated.

A manufacturing method for an amorphous alloy thin strip having a notch. The method comprises: during a notching operation, using a cutting roller to form a notch on a smooth amorphous alloy strip, wherein the cutting roller is provided with a cylindrical body, at least one helically extending blade portion is provided on the surface of the body, and during the notching operation, the cutting roller presses against the amorphous alloy strip and rotates; and the blade portion has a tip angle in the range of 20°-30° and a notching pressure in the range of 5-8 g, and there is an included angle in the range of 20°-60° between the extension direction of any position on the blade portion and the travel direction of the amorphous alloy strip.

The utility model discloses an oil pressure driven notch cutting device which comprises a rack, a cutting mechanism and two workpiece fixing mechanisms, the workpiece fixing mechanisms and the cutting mechanism are both arranged on the rack, each workpiece fixing mechanism comprises two sliding plates, a supporting plate and a clamping plate, the number of the sliding plates is two, the supporting plate is arranged on the rack, and the clamping plate is arranged on the supporting plate. The two sliding plates are both connected with the rack in a sliding mode, the two ends, in the width direction, of the supporting plates are fixedly connected with the two sliding plates correspondingly, the number of the sliding plates, the number of the supporting plates and the number of the clamping plates are all two, and a discharging opening is formed between the two supporting plates. The blanking device has the advantages that the blanking opening is formed between the two supporting plates, waste materials generated in the machining process are discharged through the blanking opening, therefore, the blanking device can be conveniently used for machining notches where the waste materials can be generated, and the advantage of being good in practicability is achieved.

The support device featuring pre-manufactured notches and dedicated sections for simple and stable installation of posts on outdoor decks and stairs, thereby providing enhanced stability and longevity of the posts. The support device comprises a planar base, a sleeve member, and a bottom support. The support device is designed to be weather-resistant, so there is minimal risk of rust or rot occurring to the post. The support device eliminates the need for manual notching with tools like saws and chisels, thereby simplifying the installation process for lumber yards, builders, and contractors. This could save time and labor costs. The support device frees up valuable space compared to traditional flat surface installations by mounting on the edge of steps or decks. This could be a crucial benefit for narrow stairs or outdoor decks.

The invention discloses a racket notching device, relates to the field of racket machining, and solves the problem that an existing racket notching device is prone to causing clamp damage, the racket notching device comprises a device support and a machining circular truncated cone installed on the outer side of the device support, and an electric drill bit is arranged at the top of the machining circular truncated cone; the electric drill bit is in butt joint with the device support through a connecting plate, and a racket body is arranged on the outer side of the machining circular truncated cone. The rod fixing mechanism is used for positioning a racket rod of the racket body, and the rod fixing mechanism is installed on the outer side of the machining circular truncated cone; by means of the rod fixing mechanism, the racket rod of the racket body can be clamped and positioned and protected and fixed, so that the racket rod can rotate with the circle center of the machining circular truncated cone as the center point, the outer side of the racket frame can be sequentially punched through an electric drill bit, the problem that a clamp is prone to being damaged by the drill bit is solved, and the safe punching effect is achieved.

The invention relates to the technical field of motor iron core machining, in particular to a notching and indexing integrated high-speed notching device which comprises a pressing rod, a shell, a lower pressing cover, a punching head, a filling block, a tray, a stabilizing component, a filling component, an indexing component and a reset component. A workpiece is clamped on the fixed tray through the downward pressing cover, the stability of the workpiece during notching is guaranteed, the stamping head can be automatically indexed to meet the machining requirement during notching of the notching machine through the indexing part arranged between the stamping head and the pressing rod, the filling part is arranged in the shell, after notching is completed, the downward pressing cover automatically moves upwards, and the notching efficiency is improved. And the pressing rod cannot drive the punching head to punch the workpiece, so that the phenomenon that the notching speed is too high or wrong punching occurs when the workpiece is taken and conveyed is prevented, and the safety during production is improved.

This invention relates to a wheel assembly (1) with a crusher for use in a deburring apparatus (A) for removing welding burrs formed on the inside of a pipe, comprising a main body (2) which has two wheel bodies (21) having a circular shape and positioned opposite each other and a central part (24) connecting these wheel bodies (21) at their central portions and integral (one- piece) with the wheel bodies (21), at least one crushing part (3) which is positioned between the wheel bodies (21) on the center part (24) and which is used for notching on a pipe / deburring a pipe, a fixing recess (31) which is positioned on the surface of the crushing part (3) facing the wheel body (21), at least one pin hole (23) which is located on the wheel body (21) and adapted for the insertion of a fixing pin through it into the fixing recess (31).

The dadoing equipment for tricycle machining comprises a movable seat and a tool apron, and a plurality of tools are evenly distributed on the tool apron; the movable frame is movably arranged on the movable seat, and the cutter seat is arranged on the movable frame; the lifting mechanism drives the moving frame to move up and down; the number of the air guide columns is two; an air guide groove, a first air hole, a second air hole and an air guide channel are formed in the air guide column, the first air hole and the air guide channel are communicated with the air guide groove, and the air guide channel is arranged between the first air hole and the air guide groove; each air guide column is connected with the corresponding air guide mechanism, and the air guide mechanisms are connected with an external pressure air source and guide airflow into the air guide grooves; the top end of each air guide column is provided with the corresponding guide sliding sleeve; according to the dadoing device, chippings left during previous dadoing of a workpiece can be blown away, chippings attached to a tool can be blown away conveniently, and therefore the dadoing quality can be guaranteed.

The application provides an adjustable notch edge grinding device for PP plate production, and relates to the technical field of notch edge grinding devices.The device comprises an operation table and two additional columns, the lower surface of the operation table is fixedly connected with four supporting columns, the upper surface of the operation table is abutted with a plate to be ground, the side, where two additional columns are close to each other, is provided with an adjusting structure, the adjusting structure comprises an adjusting assembly, a linkage assembly and a grinding assembly, the adjusting assembly comprises a horizontal plate, the horizontal plate is fixedly connected with the side, where two additional columns are close to each other, the lower surface of the horizontal plate is fixedly connected with two assembly seats, the inner wall of the assembly seat is provided with a bearing, and the assembly seat is rotatably connected with a bidirectional screw rod through the two bearings.The application solves the problems in the prior art, such as the inability to realize the synchronous movement of double-sided grinding heads, the easy occurrence of asynchronous adjustment, poor centering, low positioning accuracy and the like, and the difficulty in meeting the production requirements of fast and accurate adjustment of PP plates with different widths.

The invention discloses bearing outer ring crack guiding groove forming equipment and a machining method, and belongs to the technical field of bearing machining. The bearing outer rings enter the feeding slide way one by one from the feeding mechanism and then enter the product positioning structure to be positioned. The pushing air cylinder pushes the carrying plate to the direction of the product positioning structure, so that the four-claw air cylinder clamps the bearing outer ring. And the motor is rotated to enable the cracking groove opening position on the bearing outer ring to correspond to the position of the cutter above. The cutter is driven by the pressurizing air cylinder to move downwards and make contact with the grooving position of the bearing outer ring to complete notching. And the shifting cylinder shifts the bearing outer ring from the positioning table to the discharging slide way to slide out. Unmanned operation can be achieved, one person can achieve multiple machines, operation is fast and convenient, safety performance is high, the risk of industrial injury caused by cutter breakage is reduced, machining efficiency is improved, machining quality is improved, the product rejection rate is reduced, and the enterprise image is improved.