650results about "Trepanning drills" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

The invention relates to the technical field of cutting tools, in particular to a trilateral-handle efficient counter bit convenient to install, which comprises a chuck base, a first rotating sleeve rotationally installed in the chuck base, an installation rod and a trilateral-handle main body, a first limiting clamping block is rotationally installed on the inner wall of the chuck base, and a second limiting clamping block is rotationally installed on the inner wall of the first limiting clamping block; the first limiting clamping block is rotationally sleeved with a first rotating sleeve, the first rotating sleeve is rotationally sleeved with a second rotating sleeve, the inner wall of the second rotating sleeve is fixedly connected with a third limiting clamping block used for limiting the position of the second rotating sleeve, and the moving disc moves in the direction close to the threaded groove. Lubricating oil between the movable disc and the inner wall of the fixing sleeve is compressed, the compressed lubricating oil is pressed in along a hole between the threaded groove and the positioning screw rod, it needs to be noted that the inner diameter of the threaded groove is smaller in the direction closer to the movable frame, and no gap overflows when the lubricating oil reaches the tail end of the threaded groove; therefore, the fixed sleeve and the positioning screw rod are lubricated.

A cutting insert (10) of a rotary drill tool (1) for cutting metal comprises a head (14) and a neck extending along a longitudinal axis (12). The head has an axially forward-facing cutting region (13). At least the neck is configured for enabling releasably mounting at a support body (11). The head is formed by at least two lobes (33) each having a radially outermost envelope surface (23). Each lobe comprises a radially and axially extending torque transfer surface (17) configured for abutment contact with a corresponding torque transfer surface(29) of the support body. In a plane extending perpendicular to the longitudinal axis, the torque transfer surface has an orientation relative to the radial direction (RT) at an angle (α) in the range 15 to 45°, or 22 to 35°, or 28 to 33°, or 28 to 29°. A corresponding support body and a rotary drill tool.

An apparatus that includes a drill bit and a sleeve, and method for using the same is disclosed. In one embodiment, an apparatus may include a drill bit that has a shank portion at one end, a lead portion at an opposite end, and an elongated neck portion that connects the shank portion with the lead portion. The apparatus may also include a hollow sleeve that surrounds at least a portion of the elongated neck portion. In one embodiment, a method for using a drill bit and sleeve includes securing the shank portion of the drill bit to a drill chuck, inserting the drill bit and hollow sleeve through a structure, removing the drill bit from the drill chuck, and removing the drill bit from the hollow sleeve such that the hollow sleeve remains within the structure.

The application discloses a drilling tool with concave-convex matching on the side, which comprises a cutting part and a clamping part. The cutting part comprises an end cutting area, a bottom locating surface and a cutting side surface between the end cutting area and the bottom locating surface. The cutting side surface is provided with a plurality of side cutting areas and a plurality of side locating surfaces. The end cutting area and the side cutting area form a cutting area of the cutting part. The side locating surface is provided with an inner mounting hole. The clamping part comprises a clamping groove part and a handle part. The clamping groove part is provided with a bottom clamping surface and a side clamping surface corresponding to the bottom locating surface and the side locating surface respectively. At least one side locating surface is provided with a side locating convex part. The side clamping surface corresponding to the side locating surface is provided with a side clamping concave part. The side locating convex part and the side clamping concave part form a concave-convex matching to determine the mounting direction of the cutting part and realize the circumferential clamping and positioning of the cutting part, so as to transmit the cutting torque and the cutting force between the cutting part and the clamping part in the cutting process. The cutting tool has high rigidity, excellent anti-vibration performance, high positioning accuracy and long service life.

A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.

An abrasive article can include a core and an abrasive component attached to the core. The abrasive component may include a body including a leading end and a trailing end, wherein the leading end has a width greater than a width of the trailing end. In an embodiment, the abrasive component may include a body including a first abrasive portion and a second abrasive portion, wherein a radial width of the first abrasive portion is greater than a radial width of the second abrasive portion.

A rotary cutting tool comprising a tool body (2) and a cutting head (30) with a coupling portion (31) receivable between axially projecting coupling legs (12) on the tool body. Each coupling leg has a torque transfer surface (15), which is configured to abut against a corresponding torque surface (35) on the cutting head in order to transfer torque from the tool body to the cutting head. Each one of said torque surfaces (35) on the cutting head is convex as seen in any plane that is perpendicular to the centre axis (C2) of the cutting head and extends across the torque surface (35), and / or the torque transfer surface (15) on each one of said coupling legs is convex as seen in any plane that is perpendicular to the centre axis (C1) of the tool body (2) and extends across the torque transfer surface (15).

A modular drill is disclosed. The modular drill includes a tool shank extending along a rotational axis. The tool shank includes a shank top end and a shank bottom end along a rotational axis and includes a cam slot extending at least partially through a width of the tool shank. The modular drill includes a cutting head extending from a cutting head top surface to a cutting head bottom surface centered on the rotational axis. The cutting head includes a draw pin extending from the bottom surface of the cutting head along the rotational axis and a draw pin notch. The modular drill includes a clamping cam including a cam shaft contacting the draw pin notch.

The utility model belongs to the technical field of machining tools, particularly relates to an inner chip removal deep hole drill for machining a multi-hole workpiece, and aims to solve the problems that cuttings are extremely easy to accumulate in holes due to large cuttings generated in the machining process of the conventional device, and the problem of unsmooth chip removal is more prominent especially when holes with larger depths are machined. In order to solve the problems that in the prior art, abrasion of a drill bit is aggravated, meanwhile, the drill bit is heated, and machining quality is affected, according to the scheme, the drill bit comprises a drill bit body, and a drill tip is fixed to one end of the drill bit body; the drill bit has the advantages that the chip dividing grooves, the chip guiding grooves and the chip discharging grooves are continuously matched, chips are divided and are helped to flow into the chip discharging channels, the chips are effectively prevented from being accumulated in holes, machining continuity is guaranteed, cooling media reach a cutting area through multiple components, the drill bit is continuously cooled and prevented from being overheated and abraded, the chips can be efficiently scoured through impact force of the drill bit, and the service life of the drill bit is prolonged. And the chip removal efficiency is greatly improved, the risk that the hole wall is scratched by cuttings is reduced, and the machining precision and the surface quality are ensured.

The utility model discloses a U-shaped drill blade which comprises a blade body, the blade body comprises cutting edges with inclined angles, cutting edges of the cutting edges are sawtooth-shaped cutting edges, the cutting edges are arranged on the outer side of the blade body, and the cutting edges are in transition connection through tool nose fillets. The cutting edge comprises an outer cutting edge and an inner cutting edge, and the outer cutting edge and the inner cutting edge are connected through an arc edge; the blade further comprises a plurality of peripheral side faces and chip breaking tables, the chip breaking tables are evenly arranged at the positions, close to the cutting edges, of the blade body, and the distribution shape of the chip breaking tables corresponds to the distribution shape of the cutting edges. The cutting edge is connected with the outer edge of the peripheral side face, and a bottom installation face connected with the peripheral side face is arranged on the opposite side of the cutting edge. The reaping hook sawtooth-shaped continuous cutting edge structure on the blade enhances the chip breaking and cutting functions of the drill blade, and can meet the requirement for strong chip breaking under special working conditions.

The application discloses a cutter for machining a tapered hole and relates to the technical field of cutters. The cutter for machining a tapered hole is characterized by the following: an inner lining assembly is arranged in the cutter body; when the cutter body starts to perform a hole opening operation on a hole opening plane, the cutter body will vibrate; the rubber sleeve arranged in the cutter body can buffer and absorb the vibration and has a protection effect, thereby preventing resonance; the abutting piece and the connecting column arranged in the cutter body can improve the structural strength of the cutter body and the supporting effect from the inside to the outside, thereby preventing the cutter body from being bent or broken during hole opening; the service life of the cutter body is prolonged; the cutter body is matched with the cutting edge; the cutter can open a tapered hole with a certain precision; the generated metal scraps can be automatically discharged through the slag discharge groove; the cutter can prevent the problem of continuous rotation and biting of the cutter in the tapered hole; and the cutter has an auxiliary effect on improving the hole opening precision.

This surface-coated cutting tool comprises a base including a WC-based cemented carbide, and a coating layer provided on the base and comprising a lower layer and an upper layer overlying the lower layer, wherein the lower layer has an average thickness of 5-500 nm and has a composition represented by the formula WxTi1-x-y-z-sAyCzNs (A is at least one element selected from the group consisting of Cr, Ta, Nb, and V, the average of x, xavg, satisfies 0.05≤xavg≤0.30, the average of y, yavg, satisfies 0.00≤yavg≤0.05, the average of z, zavg, satisfies 0.00≤zavg≤0.10, the average of s, savg, satisfies 0.05≤savg≤0.30, and xavg≥2×zavg is satisfied) and the upper layer has an average thickness of 0.3-6.0 μm and has a composition represented by the formula AldM11-dN (M1 is at least one element selected from the group consisting of Ti, Cr, Ta, B, Si, Mo, and W, and the average of d, davg, satisfies 0.20≤davg≤0.80).

A coated tool according to the present disclosure comprises a substrate, a first coating layer, a second coating layer, and a third coating layer. The first coating layer contains Al, Ti, Cr, and N. The second coating layer includes a first film and a second film. The first film contains Al, Ti, Cr, and N and has a Ti / Al ratio higher than that of the first coating layer. The second film contains Al, Ti, Cr, and N and has a Cr / Al ratio higher than that of the first coating layer. The third coating layer includes a third film and a fourth film. The third film contains Al, Ti, Cr, and N and has a Ti / Al ratio higher than that of the first film. The fourth film contains Al, Ti, Cr, and N and has a Cr / Al ratio higher than that of the second film.

The utility model discloses a machine clamp drill bit used for machining deep and long hollow holes, which comprises a cutter handle, a cutter base body and a cutter head which are sequentially and coaxially connected from top to bottom, the cutter head is provided with a first cutter head chip groove and a second cutter head chip groove along the axial direction, and the inner wall of the lower end of the first cutter head chip groove is provided with a first mounting seat. A first peripheral cutter is embedded in the first mounting base, a second mounting base and a third mounting base are sequentially arranged on the inner wall of the lower end of the second tool bit chip removal groove from inside to outside, a center cutter is arranged in the second mounting base, and a second peripheral cutter is arranged in the third mounting base. According to the utility model, the central cutting edge and the peripheral cutting knife are arranged, so that the peripheral cutting knife participates in cutting along with the increase of the machining diameter in the reaming and drilling process. The chip removal groove is a straight groove and is grooved to the bottom of the cutter bar, so that the chip removal effect when the bottom of a deep hole is machined is guaranteed; and a guide strip for supporting is designed, the supporting and guiding effects are achieved in the drilling process, and the situation that the drilling direction is deflected due to swing and the like is prevented.

Described herein is a system configured to automatically straighten a drill bit to within acceptable specifications. The drill bit straightening system described herein may include a drill bit holding assembly configured to hold the drill bit, one or more sensors configured to measure edge eccentricity of a shaft associated with the drill bit, a control unit configured to automatically control the straightening operation of the drill bit straightening system, and a drill bit pressure arm configured to straighten the drill bit by applying a force calculated based on one or more predictive models. The control unit may be configured to calculate the force(s) to be applied to the drill bit using the one or more predictive models.

The application discloses a cutter and a preparation method, and relates to the technical field of drilling cutters.The application combines an ultrafine nanocrystalline cemented carbide base body with a functionally gradient composite coating, the bottom layer made of CrAlN material in the composite coating is firmly combined with the tungsten carbide cutter base body, the top layer made of TiSiCN has hardness and lubricity, cutting force and cutting heat are reduced, the intermediate layer made of AlCrSiN material provides core ultra-high hardness and thermal stability, the long service life of the cutter is ensured, a transition layer with gradient change in silicon content is further arranged between the bottom layer and the intermediate layer, stress between the bottom layer and the intermediate layer can be effectively buffered, the base body toughness, coating bonding strength, overall wear resistance and surface lubricity of the cutting cutter, especially the drill bit, are comprehensively improved, and the application has extremely high market value.

Proposed is a motorized drill lance apparatus for extinguishing vehicle fires, the apparatus including a height-adjustable cart configured to move and be located underneath an electric vehicle battery, and a drill module configured to drill a hole into the electric vehicle battery using the power of a motor while in close contact with the electric vehicle battery, and then inject water into the electric vehicle battery through the drilled hole to extinguish a fire occurring in the electric vehicle battery.

The utility model relates to a metal sheet tapper. The metal sheet tapper comprises a cutter head, an adjusting mechanism, a plurality of mounting arms and a plurality of cutter teeth, the multiple mounting arms are slidably arranged on the cutter head in the radial direction of the cutter head, the first ends of the mounting arms extend out of the periphery of the cutter head, and the multiple cutter teeth are detachably connected with the first ends of the multiple mounting arms in a one-to-one correspondence mode. The adjusting mechanism is arranged on the cutterhead, the mounting arms are connected with the adjusting mechanism, and the adjusting mechanism can adjust the distance from the first ends of the mounting arms to the center of the cutterhead at the same time. The cutter teeth are convenient to replace, and only the cutter teeth on the corresponding mounting arms need to be replaced after the metal sheet tapper is worn, so that the equipment investment is reduced. The adjusting mechanism can adjust the distances from the first ends of the multiple installation arms to the center of the cutter head at the same time, so that the diameter of the circle where the multiple cutter teeth are located is adjusted, the tapping diameter is adjusted, the flexibility of equipment is improved, the tapper does not need to be replaced when the tapping diameter changes, the operation process is simplified, and the working efficiency is improved.

The utility model discloses a high-stability deep hole machining drill bit which comprises a drilling rod, the inner wall of the drilling rod is connected with two symmetrical screws in a sliding mode, threads of the two screws are arranged reversely, the lower ends of the screws are fixedly connected with first limiting blocks, and the outer walls of the screws are connected with second limiting blocks in a threaded and sliding mode and located at the tops of the first limiting blocks. The outer wall of the second limiting block is rotationally connected with a rotating block, and the inner wall of the rotating block is in threaded connection with the outer wall of the screw. The drilling rod can slide on the screws, the drilling rod can be protected through a first limiting block and a second limiting block, meanwhile, the height of the second limiting block can be controlled by rotating a rotating block, and therefore the distance between the first limiting block and the second limiting block is adjusted to be matched with the drilling depth of the drilling rod, and meanwhile threads of the two screws are opposite, so that the drilling depth of the drilling rod is adjusted. Therefore, when the rotating blocks are rotated, the positions of the second limiting blocks can be adjusted by reversely rotating the two rotating blocks, and operation is convenient.

The invention relates to a rotary tool (10), the tool body (12) of which extends between a driven end (16) and a front end (18) along a central axis of rotation (14), the rotary tool comprising: a receiving region for receiving a deburring element (30) which is movable relative to the axis of rotation along a radial axis of movement between an inner position and an outer position; and a fluid channel (20) which is fluidically connected to the receiving region in order to apply fluid pressure to the deburring element, wherein the rotary tool has a mechanical spring which generates a preloading force and pushes the deburring element radially outwards into the outer position and preloads the deburring element in the outer position, and wherein, depending on a fluid pressure prevailing in the fluid channel, an additional force acting radially outwards can be applied or is applied to the deburring element.

The invention relates to the technical field of deep hole machining, in particular to a deep hole drilling tool with an inner cooling channel, which comprises a mounting rod, a drill bit, a mounting sleeve, an adjusting assembly and a positioning assembly. During boring operation, the mounting rod is fixed on an original axis through the positioning assembly by taking a completed drill hole as a positioning reference, so that the mounting rod can provide axial guidance and radial support for the mounting sleeve. Therefore, the mounting sleeve is always kept highly coaxial with the drilling axis in the rotating process, the axis deviation problem caused by tool changing or re-clamping in the traditional process is effectively avoided, and the consistency of the drilling center and the boring center is guaranteed.

The invention provides a dual-V-shaped clamping multi-specification adaptive modular cutter with chip removal and cooling functions, and relates to the technical field of hole machining cutters, the dual-V-shaped clamping multi-specification adaptive modular cutter comprises a cutter bar and a cutting head, the cutting head is provided with a connecting hole, and a positioning rod is arranged at the lower end of the cutting head; the top of the cutter bar comprises a V-shaped end, the inner side of the V-shaped end comprises two V-shaped faces, and the V-shaped end penetrates through the connecting hole through a locking bolt to achieve fixation of the cutter bar and the cutting head. A positioning hole is formed in the bottom of the V end, a pre-tightening assembly matched with the positioning hole is arranged at the lower end of the positioning rod, five-face positioning of the cutting head is achieved through matching of the V end on the cutter bar and the supporting face, in the installation process, by installing the pre-tightening assembly in advance, the cutting head can be conveniently installed in the V end, pre-tightening force can be provided, and therefore the cutting head can be installed conveniently. And the cutting head and the V end can be conveniently fixed by the locking bolt.

The invention belongs to the technical field of drilling tools, and discloses a coating drilling tool and a machining method.The coating drilling tool comprises a drill tip part, the drill tip part comprises a front tool face and two tool end faces, the two tool end faces intersect to form a chisel edge, each tool end face comprises a first rear tool face, and the first rear tool faces intersect with the front tool face to form a main cutting edge; the drill tip part further comprises a first machining area, the first machining area is arranged on the front tool face and intersects with the main cutting edge, a first micro-texture is arranged in the first machining area, and / or the drill tip part further comprises a second machining area, the second machining area is arranged on the first rear tool face and intersects with the chisel edge and the main cutting edge, and a second micro-texture is arranged in the second machining area. A second microstructure is arranged in the second machining area. The first microtextures and the second microtextures can improve the surface roughness of the front tool face and the first rear tool face, improve the coating binding force, slow down tool abrasion, improve the cutting performance and reduce abrasive particle abrasion and bonding abrasion between interfaces.

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 relates to a rotary tool (10) which extends with a tool body (12) along a central axis of rotation (14) between a driven end (16) and a front end (18), with a receiving area for receiving a deburring element (30) which is movable relative to the axis of rotation along a radial axis of movement between an inner position and an outer position, with a fluid channel (20) which is fluidly connected to the receiving area for applying fluid pressure to the deburring element, wherein the rotary tool has a mechanical spring which generates a preload force and pushes the deburring element radially outwards into the outer position and preloads the deburring element in the outer position, wherein, depending on a fluid pressure applied in the fluid channel, the deburring element can be or is subjected to an additional force acting radially outwards.

The utility model belongs to the deep hole drilling technical field especially, it is a kind of deep hole drill for machining middle axle of automobile reduction gearbox, to the existing in use, since the heat generated by drill head and hole wall friction, it is inconvenient to carry out heat dissipation, leading to drill head overheating influence processing quality problem, present and propose following scheme, including drill fixed handle, the one end of drill fixed handle is connected with drill head body, the other end of drill fixed handle is connected with water inlet pipe, the inside of drill fixed handle is equipped with cooling mechanism for cooling drill head, the one side of cooling mechanism is equipped with quick release mechanism for the disassembly of drill head. The utility model is sprayed by the water injection hole of drill head body terminal, drill head body is in hole, so that the water that sprays will pass through the chip flute on drill head body and be discharged from inside to outside, to further cool drill head body, and can flush out the impurity adhered to the outer surface of drill head body.

An inner cooling type cutter structure comprises a cutter handle and a cutter head, a plurality of side blades are spirally arranged on the outer side face of the cutter head, chip grooves are formed between the side blades, an end blade is arranged at the end of the cutter head, a connecting part is arranged between the cutter handle and the cutter head, and the connecting part is of a hollow structure. An annular partition plate is arranged in the connecting part and divides an inner cavity of the connecting part into an air cooling cavity and a liquid cooling cavity, an air inlet is formed in the outer side of the air cooling cavity, a plurality of air cooling pipes are arranged at the end, close to the cutter head, of the air cooling cavity, a liquid inlet pipe is coaxially arranged in the cutter handle, and the liquid outlet end of the liquid inlet pipe is communicated with the liquid cooling cavity. A liquid outlet pipe is coaxially arranged in the tool bit, the liquid inlet end of the liquid outlet pipe is communicated with the liquid cooling cavity, a plurality of liquid cooling pipes are arranged on the outer side face of the tool bit, and liquid cooling grooves are formed between the end edges of the end of the tool bit. The tool is cooled by liquid cooling and air cooling at the same time, so that the cooling efficiency is improved, the machining is convenient, and the machining cost is reduced.

Cutting tool (30) with a shank (8) extending along a tool axis (4), a cutting head (6) axially adjoining the shank (8) and an internal coolant channel system formed from a centrally extending inlet channel (12) leading from an inlet opening (10) at the end of the shank towards the cutting head (6) to a branch point (14) located at a defined axial distance to the inlet opening (10), at least one decentering outlet channel (18) leading to an outlet opening (20) on the end face of the cutting head, and a straight branch channel (16) branching off from the inlet channel (12) at the branch point (14) and leading at a defined angle to the outlet channel (18). A cross-sectional area of ​​the at least one branch channel (16) projected along the at least one branch channel (16) in the direction of the shaft end lies completely within the inlet opening (10).