80results about "Tool adapters" patented technology

An arbor for a hole saw. The arbor includes an arbor stem having at least one arm with a threaded portion configured to engage the hole saw. The arbor further includes an actuator rotatable to move the at least one arm and a body mounted to the actuator. The body has a channel that receives the at least one arm. Moreover, the arbor includes at least one magnet positioned within the at least one arm.

The invention discloses an extension bar tool for a radial drilling machine. The extension bar tool comprises a telescopic extension bar assembly. The telescopic lengthening rod assembly is of a rod-shaped structure capable of being telescopically adjusted in the axial direction, one end of the telescopic lengthening rod assembly is detachably installed on a main shaft of the radial drilling machine, and the telescopic lengthening rod assembly is used for adjusting the overall length of the tool through the axial telescopic action so as to adapt to different workpiece wall attaching distances during machining of the radial drilling machine and meet the machining range requirements under different working conditions. Through cooperation of the elastic locking rods and the multiple adjusting holes, the overall length of the tool can be flexibly adjusted so as to adapt to the wall attaching distances of different workpieces. In addition, the adapter head assembly is matched with the taper sleeves of multiple specifications through the quick-release pin rod assembly, and disassembly and assembly adaptation of drill bits and screw taps of different models can be quickly achieved; the anti-loosening assembly finally achieves the comprehensive effects of expanding the tool machining range, improving the tool adaptation universality and the disassembly and assembly efficiency, ensuring the high-speed machining stability and guaranteeing the machining hole site precision through the internal thread part and the external thread part which are screwed in the reverse directions.

Systems and adapters for a welding machine are provided. The system may include an adapter having a first end and a second end; a collet holder at the first end; a flange positioned between the collet holder and the second end; a first body portion positioned between the collet holder and the flange; and a second body portion positioned between the flange and the second end. The system may also include a collet receivable in the collet holder and configured to hold a tool. The adapter may be further receivable in and selectively securable to a welding head of the welding machine, thereby enabling the welding machine to use the tool.

The utility model discloses a clamping device for drill bit surface treatment, which comprises a platform and a base, a transmission cavity and a rotating cavity are arranged in the platform, an upper motor is arranged in the transmission cavity, a screw rod extending into the transmission cavity is rotatably arranged in the rotating cavity, the screw rod is connected with the upper motor through a rotating mechanism, and the upper motor is connected with the base. The screw rod is sleeved with a movable frame in a threaded mode, a movable opening is formed in the movable frame, a sliding rod is arranged in the movable opening, the sliding rod is sleeved with a connecting plate in a sliding mode through a first elastic mechanism, and positioning discs are arranged on the upper end face and the lower end face of the connecting plate. According to the drill bit clamping device, stable clamping of drill bits of different sizes is achieved, through synchronous adjustment of the positioning disc, the clamping preparation efficiency is greatly improved, one-by-one adjustment is not needed, the operation time is saved, and the overall working efficiency is improved.

The utility model discloses an anti-vibration stepped drill bit for deep hole processing, which comprises a stepped drill bit, a drill rod, a flow guide pipe and a clamping mechanism, the drill rod is coaxially fixed at one end of the stepped drill bit, and the flow guide pipe is coaxially fixed at one end of the drill rod far away from the stepped drill bit. The clamping mechanism has the advantages that the single air cylinder is adopted to drive the linkage rod to be in linkage, the linkage rod drives the driven rod protruding blocks to be in synchronous linkage, then the first clamping plate and the second clamping plate can be in synchronous linkage, an independent driving unit does not need to be additionally arranged, the complexity of the clamping mechanism is simplified, and the clamping efficiency is improved. The drill rod and the flow guide pipe are rigidly clamped and locked through the first clamping plate and the second clamping plate correspondingly, a vibration transmission path is effectively blocked, the situation that the stepped drill bit vibrates during machining is avoided, the stress distribution of the drill rod and the flow guide pipe can be balanced through a synchronous clamping mechanism, and the service life of the drill rod and the flow guide pipe is prolonged. And local stress concentration caused by traditional single-point fixation is avoided.

The invention discloses a lead angle integrally-formed steel plate drill which comprises a connecting handle, a chip groove is formed in the outer wall of a spiral drill rod, and a cutting edge is reserved at the position, located on the edge of the chip groove, of the spiral drill rod. The chamfering device has the beneficial effects that the special chamfering seat is additionally arranged between the connecting handle and the spiral drill rod, and the two 120-degree chamfering blades are arranged on the chamfering seat in the direction of the cutting blade of the spiral drill rod, so that when the spiral drill rod is about to completely penetrate through a steel plate, the upper edge of a hole opening is cut in advance, and a required chamfer is directly machined; and meanwhile, when the spiral drill rod retreats from the steel plate, the chamfering blades on the chamfering base can make contact with burrs on the lower edge of a hole opening, due to the fact that the retreating direction is opposite to the drilling direction, the cutting edges can generate upward cutting force on the burrs on the lower edge, and therefore the burrs are cut off and brought out of the hole, and the chamfering effect is achieved. The most headache problem of burrs on the outlet side in the traditional process is solved.

Provided is a cutting tool excellent in chip dischargeability and excellent in durability. A cutting tool based on one aspect of the present disclosure comprises a body section and a first cutting part and a second cutting part fixed to the body section. The body section includes a trunk part positioned on a rear end side, and a branch part extending toward a tip end from the trunk part. The branch part includes: a first branch part extending rearward in a rotation direction toward the tip end and connected to the trunk part and the first cutting part; a second branch part extending frontward in the rotation direction toward the tip end and connected to the trunk part and the first cutting part; a third branch part extending rearward in the rotation direction toward the tip end and connected to the trunk part and the second cutting part; and a fourth branch part extending frontward in the rotation direction toward the tip end and connected to the trunk part and the second cutting part. The second branch part and the third branch part intersect and are connected at the intersecting sites.

The utility model provides a tire pressure sensor belongs to the punching auxiliary technical field, it solved the technical problem of the wheel hub after punching and the convenient polishing. The punching auxiliary equipment of tire pressure sensor includes the workstation, and the inside top of L type mounting bracket is equipped with the quick release mechanism that carries out the quick replacement to drill bit, and the quick release mechanism includes the second rotating lever, and the bottom all around of second rotating lever is installed with the elastic thread piece, and the bottom of second rotating lever outer wall is equipped with the first thread groove that with the outside thread of elastic thread piece is in communication, the outer wall of elastic thread piece is equipped with the fixed sleeve of adaptation, and the inner wall top and bottom of fixed sleeve are equipped with the communication trapezoidal thread groove, and the top of drill bit is located in the inside of multiple elastic thread pieces. In the utility model, the effect that carries out the quick replacement to drill bit is realized, and the hole burr of wheel hub is polished and is edged conveniently, saves the time of replacing drill bit, and the efficiency of wheel hub punching is improved.

The utility model belongs to the technical field of coating drill bits, particularly relates to a drill bit capable of adjusting drilling depth, and aims to solve the problem that the existing drill bit cannot be adjusted, and adopts the following scheme that the drill bit comprises a connecting end, a clamping groove is formed in the top end of the connecting end, a sleeve is fixedly mounted at the bottom end of the connecting end, and the bottom end of the sleeve penetrates out of a drill bit body; according to the telescopic drill bit, the drill rod drives the drill bit body to be connected in the sleeve in a sliding mode through a telescopic structure composed of the fixing block and the sleeving block, the drill bit body stably slides along the limiting groove through the limiting block, the limiting effect is achieved, and the drill bit body is prevented from loosening during drilling operation; the first abutting ring, the connecting plate and the second abutting ring can abut against the limiting block and drive the limiting block to slide when rotating along the sleeve to adjust the position, so that the drill rod is driven to adjust the position of the drill bit body, adjustment can be conducted according to the needed drilling depth, and the comprehensiveness and applicability in the using process are improved.

The utility model discloses a micro drill bit for machining a 3C titanium alloy element. The micro drill bit comprises an installation body, a rotary button rotationally installed above the installation body and a connecting assembly in the rotary button. And a connecting disc is rotationally connected to the upper portion of the rotating button, a mounting base is fixedly mounted on the upper portion of the connecting disc, a fixing structure is arranged in the mounting base, and a micro drill bit is inserted into the middle of the fixing structure. Threaded connection of the drill tip is achieved through the threaded rod of the connecting assembly, and detachable installation of the drill tip and the length adjusting effect in the using process are achieved through threaded connection of the drill tip and the threaded rod of the connecting assembly.

The present disclosure provides a cutting insert having excellent chip discharge properties. A cutting tool according to one aspect of the present disclosure has a main body part and a first cutting part fixed to the main body part. The main body portion has a trunk portion located on the rear end side and a branch portion extending from the trunk portion toward the front end. The first cutting portion has a first rear surface located rearward of the rotation direction of the rotation shaft and a first inner side surface facing the rotation shaft. The branch portion has a first branch portion connected to the trunk portion and the first rear surface, and a second branch portion connected to the trunk portion and the first inner surface.

The utility model belongs to the technical field of machining tools, in particular to a drill bit with a cutting tool bit easy to replace quickly, which comprises a drill body, a clamping rod and a square connecting block, an adapter block is fixed at the bottom end of the clamping rod, and the square connecting block is fixed at the top end of the drill body. Clamping blocks are fixed on the opposite surfaces of the two movable plates; the bidirectional threaded screw rod is rotationally mounted in the square connecting cavity; a guide rod; according to the drill body, the square connecting block is inserted into the square connecting cavity, the two-way threaded lead screw is rotated, the two movable plates are close to the inner side to clamp the square connecting block, meanwhile, the clamping block is embedded into the clamping groove to form clamping locking, stable connection of the drill body main body and the clamping rod can be achieved, and the drill body main body and the clamping rod can be disassembled by reversely rotating the two-way threaded lead screw; the square design of the square connecting block and the square connecting cavity has high stability, and relative rotation between the drill body main body and the clamping rod is avoided.

The utility model relates to the field of tappers, in particular to a tapper connecting rod. A tapper connecting rod comprises a base, an outer cutting knife connected to the base, a drilling assembly installed on the inner side of the base and a knife lock assembly located on the outer side of the base and used for locking the outer cutting knife, and a threaded hole used for being in threaded fit with the base and a positioning hole located in the side face of the threaded hole are formed in the outer cutting knife. The cutter lock assembly comprises a positioning piece arranged on the base in a sleeving mode and a cutter lock housing rotationally connected with the base, the positioning piece comprises a positioning column penetrating through the base to be inserted into the positioning hole, and the cutter lock housing is in threaded fit with the positioning piece. When the outer cutter needs to be replaced, the cutter lock housing is rotated, and the positioning piece in threaded fit with the cutter lock housing cannot rotate freely due to limitation of the positioning column and the positioning hole, so that the positioning piece moves downwards. And when the positioning column is separated from the positioning hole, the outer cutting knife can be screwed off and replaced by a new outer cutting knife.

A device is for an axial displacement of a hole saw for a hand-held drill, wherein the hole saw is coupled to the drill by a drive shaft, and the hole saw and an actuator are rotatably connected and positioned in a housing with a coupling for the drill. The actuator has an outer threaded portion which corresponds to an inner threaded portion in the housing so that the actuator and the hole saw are displaced axially along the drive shaft when the actuator rotates relative to the housing. The actuator is connected to the drive shaft via a slip clutch arranged to transfer and reduce a reduced torque from the drive shaft to the actuator.

The utility model relates to deep hole drill related technical field, specifically a quick change formula machine clamp deep hole drill, including detachable connection's shank and blade, the shank is formed with the cylindrical cavity that the blade inserts in, the cylindrical cavity inner wall is provided with the locating block that the blade's insertion carries out automatic alignment, still include the connecting barrel that sets up along the shank axial and rotates, the connecting barrel is provided with a plurality of locking elastic parts that can insert the blade in along the circumference in, and the rotation of connecting barrel is controlled by the drive assembly that sets up on the shank, the utility model is positioned to the limiting of blade through the locating block set up on the shank, makes the blade into the shank can be automatic with the axial alignment of shank, can effectively avoid the influence that the torque that blade received produces to elastic locking part, to realize the shank and blade can quick change loading simultaneously, ensure the connecting stability of shank spare blade, prevent the blade from separating from the shank in.

To provide a drilling tool featuring stable radial clamping, characterized by superior connection strength, high machining precision, convenient assembly / disassembly, long lifespan, and low production cost.SOLUTION: A clamping member comprises a handle part 21 and a clamping part 22. Two chip discharging grooves are formed in the clamping part to form a two-piece clamping structure. A cutting member is matched with the clamping part, and in a direction away from a cutting part along a rotation center axis of a drilling tool, a connecting part is sequentially provided with a first outer circumferential surface and a second outer circumferential surface, and the clamping part is sequentially provided with a first inner circumferential surface and a second inner circumferential surface. The first inner circumferential surface is matched with the first outer circumferential surface to form a first radial clamping structure, and the second inner circumferential surface is matched with the second outer circumferential surface to form a second radial clamping structure. The first radial clamping structure and the second radial clamping structure are capable of independently achieving radial clamping of the cutting member by the clamping member, and an interference amount of the first radial clamping structure is greater than that of the second radial clamping structure.SELECTED DRAWING: Figure 1

The invention relates to the related technical field of drill bit installation, in particular to an axial locking fast-assembly type high-speed steel alloy drill bit and an installation method thereof.The axial locking fast-assembly type high-speed steel alloy drill bit comprises a drill bit body and a drill handle arranged at the end of the alloy drill body, and the drill handle connected with the output end of the alloy drill body is detachably connected with the drill bit body; a plug is arranged at the position, away from the cutting end, of the drill bit body and can be inserted into a cylindrical cavity formed by the drill handle, and a positioning block is formed on the inner wall of the cylindrical cavity. The drill bit further comprises an elastic locking piece arranged in the cylindrical cavity, a plurality of wedge-shaped pieces formed on the plug are staggered with the elastic locking piece when the plug is initially inserted, and the plug can rotate relative to the cylindrical cavity. Locking can be completed only by slightly rotating the plug to the limit, the installation stability of the drill bit body and the drill handle is ensured, and disassembly and assembly of the drill bit body and the drill handle are rapidly achieved.

The utility model relates to the technical field of fine boring cutters, and discloses a fine boring cutter for a box body, which comprises a cutter holder, a cutter head is inserted in the cutter holder, a fixed seat is mounted on the cutter holder, an insertion block is arranged on the fixed seat, a guide rod is fixedly mounted at the bottom of the insertion block, a spring is sleeved on the guide rod, and the spring is sleeved on the guide rod. A limiting groove is formed in the tool apron, a limiting column is arranged in the limiting groove, an inserting column is fixedly connected to the limiting column, a positioning seat is fixedly installed on the limiting column, and a positioning hole is formed in the positioning seat. When the tool bit needs to be replaced, a user can press a pressing plate downwards, the pressing plate drives an inserting block to move downwards to be separated from the interior of a positioning hole, at the moment, the user can pull a pulling block in the direction away from a tool apron, an inserting column of the pulling block is separated from the interior of a fixing hole in a fixing block, and then the tool bit is replaced. At the moment, the tool bit can be taken out from the interior of the tool apron after being fixed, and the tool bit can be conveniently and rapidly detached and replaced.

The utility model discloses a kind of split stepped drill, comprising: stepped drill main body;Assembly positioning mechanism, the assembly positioning mechanism is through and is fixed in the lower end of stepped drill main body Middle;By being provided with elastic resistance mechanism structure, to install by elastic resistance, the resistance spring of elastic resistance mechanism can be stably placed on rounded assembly block, so that resistance spring can be positioned resistance in the plug-in post installation groove of rounded assembly block, the outer end of resistance spring is fixed with the positioning plug-in post exposed through rounded assembly block, resistance spring can resist positioning plug-in post to move out, so that positioning plug-in post can be inserted in the positioning insertion hole of handle connecting head, so as to be conveniently fixed, when disassembling, personnel press positioning plug-in post to retract into plug-in post installation groove using tool, then pull the installation handle, so that installation handle drives rounded assembly block and handle connecting head separate, to complete overall disassembly, so as to be conveniently disassembled according to need.

The utility model relates to the field of twist drill, and disclose a kind of multilayer composite coating twist drill, including drill bit end and the connecting end being connected with drill bit end, at least two groups of spiral grooves are set in the one end of drill bit end, spiral groove is used to discharge the debris generated when drilling, the inner side edge end position of spiral groove is integrally formed with reinforcing blade, the outside of drill bit end is provided with composite coating, reduce use cost, improve economy: twist drill adopts detachable design, drill bit end and connecting end are detachably connected by plug-in part, bolt assembly and other structures.When drill bit end wears or is damaged, only drill bit end needs to be replaced, and the connecting end can continue to be used, greatly reducing material waste and reducing overall use cost. Compared with the situation that the traditional integrally formed twist drill needs to be scrapped as a whole, the economy and resource utilization of the product are significantly improved.

The present invention provides a cutting tool that exhibits excellent discharging of chips. A cutting tool according to one aspect of the present disclosure has a body section, and a first cutting section that is fixed to the body section. The body section has a trunk section that is positioned toward a rear end, and a branch section that extends from the trunk section toward a tip end. The branch section has a first branch section that extends rearward in the rotation direction of a rotary axis toward the tip end, and a second branch section that extends forward in the rotation direction of the rotary axis toward the tip end. The first cutting section is fixed to the body section at a portion where the first branch section and the second branch section intersect.

Combined drilling and screwing tool, comprising a drill (2) provided with a proximal clamping shank portion (1) for producing a pilot hole (500) for the insertion of a screw (400) into a workpiece (600), wherein a screw sleeve arrangement coaxially surrounding the drill (2) and non-rotatably connected thereto is provided for screwing the screw (400) into the pilot hole (500), the distal end of which screw sleeve arrangement is provided with screwing means for receiving a screw head, wherein the screw sleeve arrangement is composed of a main part (3) and a sliding sleeve part (4) telescopable therefrom, wherein the main part (3) is attached to the drill (2) in a rotationally fixed manner by the proximal end and can be connected to the sliding sleeve part (4) in a rotationally fixed manner by the distal end via an unlockable locking mechanism (5), so that in the retracted state of the sliding sleeve part (4) the protruding drill bit (2) can be inserted, whereas in the extended state of the sliding sleeve part (4) the screw means formed thereon can be used.

Combined drilling and screwing tool, comprising a drill (2) provided with a proximal clamping shank portion (1) for producing a pilot hole (500) for the insertion of a screw (400) into a workpiece (600), wherein a screw sleeve arrangement coaxially surrounding the drill (2) and non-rotatably connected thereto is provided for screwing the screw (400) into the pilot hole (500), the distal end of which screw sleeve arrangement is provided with screwing means for receiving a screw head, wherein the screw sleeve arrangement is composed of a main part (3) and a sliding sleeve part (4) telescopable therefrom, wherein the main part (3) is attached to the drill (2) in a rotationally fixed manner by the proximal end and can be connected to the sliding sleeve part (4) in a rotationally fixed manner by the distal end via an unlockable locking mechanism (5), so that in the retracted state of the sliding sleeve part (4) the protruding drill bit (2) can be inserted, whereas in the extended state of the sliding sleeve part (4) the screw means formed thereon can be used.

The utility model discloses a replacement structure of a drill bit for a milling machine, which relates to the technical field of drill bit replacement and comprises a milling machine body, a servo motor is fixedly mounted at the upper end of the milling machine body, the output end of the servo motor penetrates through the upper end of the milling machine body and is fixedly connected with a fixed block, and a first mounting groove is formed in the fixed block. Two groups of first threaded holes are symmetrically formed in the outer surface of the first mounting groove, mounting rollers are arranged in the first mounting groove, the mounting rollers are taken out from the interiors of the first threaded holes by rotating two first bolts, then the mounting rollers are taken out from the interiors of the first mounting grooves formed in the fixing blocks, and the mounting rollers are taken to proper positions; and a second bolt is rotated to be taken out from the interior of a second threaded hole, a third bolt arranged on the outer surface of a reinforcing roller is rotated to enable a reinforcing plate to move towards the two sides, the drill bit can be detached and replaced, and the situation that the drill bit is passivated after being used for a long time, consequently, the drill bit cannot conduct precise cutting, and the cutting efficiency is reduced is avoided.

The utility model relates to drill bit technical field, concretely is a kind of wear-resistant drill bit of replaceable tool bit, including installation handle, the one end of installation handle is fixed with sleeve, sleeve's inside is inserted with connecting handle, and the one end of connecting handle integrally formed has detachable drill bit, the other end of connecting handle is fixed with screw rod, screw rod penetrates installation handle, and the one end of screw rod is equipped with nut with screw joint;Beneficial effects are that: by connecting handle and detachable drill bit integrally formed, and the connecting mode of sleeve and connecting handle insertion, and the screw joint fixing structure of screw rod and nut, the replacement of tool bit becomes simple and fast. When needing to replace detachable drill bit, just loosen nut and remove it from screw rod, then connecting handle is separated from sleeve, and detachable drill bit can be replaced. When installing new drill bit, it can be operated according to the reverse procedure. This design greatly reduces the difficulty and cost of tool bit replacement, improves work efficiency.

The utility model discloses a high-hardness drilling PCD cutter which comprises a fixing assembly, a cutting assembly and a cutting assembly. The fixing assembly comprises a fixing column, a fixing rod, a fixing frame and a limiting plate. The fixing column is connected to the cutter body and the interior of the fixing pipe in a penetrating mode and penetrates through the fixing rod, the cross section of the fixing column and the cross section of the fixing rod are in a cross shape, the fixing frame is fixed to the outer surface of the fixing pipe, and the fixing column is connected to the interior of the fixing frame in a penetrating mode. By means of the arranged fixing assembly, when the cutter body needs to be fixed into the fixing pipe, the fixing column is pulled out of the fixing pipe firstly, the cutter body is inserted into the fixing pipe, then pushing force is applied to the limiting plate, and after the limiting plate is attached to the surface of the fixing frame, rotating force is applied to the guide column; the threaded rod is completely rotated into the fixing column and the fixing frame, then the fixing rod is inserted into the fixing column, according to the scheme, the tool is more stably fixed to the needed position, and the tool fixing device is simple in structure and easy to operate.

The utility model relates to the technical field of press machines, and discloses a broaching device for a press machine, which comprises a machine head and a broaching drill bit, one end of the machine head is provided with a pressing block, the inner side of the pressing block is fixedly connected with a threaded rod, one end of the threaded rod is in threaded connection with a sleeve, and one end of the sleeve is fixedly connected with a gear. The two ends of the gear are connected with two racks in a meshed mode, one ends of the two racks are fixedly connected with two connecting rods, one ends of the two connecting rods are fixedly connected with two inserting blocks, the two inserting blocks are connected to the two ends of the prism block in an inserted mode, and by pressing a pressing block, the pressing block drives a threaded rod to move towards the interior of a sleeve; the threaded rod moves to drive the sleeve to rotate, the sleeve drives the gear to rotate, the gear rotates to drive the rack to move, the rack drives the connecting rod and the inserting block to move, one end of the inserting block is separated from the interior of the prism block, and therefore the reamer bit can be conveniently taken down to be replaced and overhauled.

The present application relates to the technical fields of metal cutting, in particular to a metal cutting drill bit and a drilling equipment thereof, the drill bit comprises a drill bit body, the drill bit body comprises a drill rod, a mounting seat fixedly installed at one end of the drill rod, and a hard alloy blade brazed at the other end of the drill rod, the hard alloy blade is arranged as an integrated three-blade structure distributed at equal intervals, the drill bit can improve the impact resistance of the hard alloy blade during the cutting drilling process; the drilling equipment comprises a base, a drill bit part and a plate conveying part are both installed at the top of the base, the drill bit part comprises a drill bit feeding mechanism and a drill bit mounting mechanism installed at the end of the feeding end of the drill bit feeding mechanism, the plate conveying part comprises a surrounding frame, a plate clamping mechanism penetratingly arranged in the surrounding frame, a plate feeding mechanism installed at one end of the surrounding frame, and a plate fixing mechanism installed at one side of the surrounding frame, the drilling equipment can realize continuous equidistant drilling and quickly complete the disassembly and assembly of the drill bit.

The utility model relates to the technical field of alloy drill bits, and provides a self-locking type high-precision alloy drill bit which comprises a drill bit body, a positioning clamping groove is formed in the drill bit body, a limiting mechanism is installed on the outer wall of the drill bit body, and the limiting mechanism comprises a drilling machine connector installed on the outer wall of the drill bit body. A threaded groove is formed in the drilling machine connector, a threaded column is installed in the drilling machine connector, an annular protruding block is fixedly connected to the inner wall of the threaded column, and a limiting elastic piece is fixedly connected to the interior of the drilling machine connector. The drill bit main body is moved to be inserted into the drilling machine connector, the four positioning clamping grooves correspond to the four positioning clamping blocks in position, the rotating block is rotated, the threaded column rotates, the annular protruding block fixedly connected with the inner wall of the threaded column extrudes the four protruding inclined plates, and the drill bit main body is inserted into the drilling machine connector. And the four positioning clamping blocks are clamped into the four positioning clamping grooves for limiting, so that the drill bit main body and the drilling machine connector are stably mounted and connected.

The utility model discloses a practical industrial plate processing and punching device which comprises a mounting plate, a movable plate is fixedly connected to the upper surface of the mounting plate, a movable groove is formed in the upper surface of the movable plate, an electric cylinder is slidably connected into the movable groove, and the output end of the electric cylinder is fixedly connected with a motor. The output end of the motor is fixedly connected with a threaded sleeve, and the lower surface of the threaded sleeve is fixedly connected with a fixed cylinder. A connecting frame, a reset spring, a fixing rod, a mounting hole, a fixing hole and a fixing cylinder are arranged. In order to adapt to different hole diameters or maintain, the fixing rod is pulled up to compress the reset spring to be away from the mounting hole and the fixing hole. And the punching drill bit is rotated to be separated from the threaded sleeve and taken down. During replacement, a new drill bit extends into the fixing cylinder, then the punching drill bit is rotated, and the threaded sleeve and the punching drill bit are meshed for threaded locking. The fixing rod is put down, the reset spring enables the fixing rod to be inserted into the hole again, and looseness is avoided during high-speed rotation.