19 results about "Hole saw" 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 present invention provides a lifting device for horizontal members that allows for lifting and unlifting of horizontal members by attaching and detaching the lifting hooks to the horizontal member, which has a main surface without lifting fittings arranged horizontally. [Solution] The horizontal member lifting device 10 of the present invention comprises a lifting body 12 that can be lifted and transported by a crane, A hole saw 26 is attached to the lifting body 12 and extends toward a horizontally positioned horizontal member, on which one main surface of the lifting body sits, to drill a hole in the one main surface. The invention is characterized by having a locking mechanism 30 positioned around the rotation axis of the hole saw 26, in which, after drilling with the hole saw 26, the locking body 32, which is reduced in diameter toward the axis of the insertion hole as the hole saw 26 extends, is inserted from one main surface, and after penetration, the locking body 32 expands in diameter and locks onto the other main surface.

This utility model relates to the field of hole saw technology, and more particularly to a hole saw with self-cleaning function. It includes a hole saw body, a guide rod, a push plate, a return spring, and a sliding mechanism. At least three guide holes are evenly distributed on the upper surface of the hole saw body. A guide rod is slidably disposed within each guide hole, with its direction parallel to the axial direction of the hole saw body. The bottom end of the guide rod is connected to a push plate, which is located within the hole saw body. A return spring is wound around the outside of the guide rod. The push plate can move under the action of the return spring to push out and clean debris from within the hole saw body. After the hole is drilled, the workpiece debris detaches from the workpiece. At this time, the push plate, under the action of the return spring, drives the contact plate and sliding plate to move, pushing the workpiece debris out of the hole saw body. This achieves a self-cleaning function, making the hole drilling operation simpler and faster.

The utility model belongs to the technical field of wall tapping tools, in particular to a wall tapper convenient for replacing a drill bit, which comprises a central drill bit and a circular hole saw, and further comprises a regular hexagonal fixing sleeve and a locking assembly, and the locking assembly comprises a locking pressing block, a fixing frame and a threaded column; a regular hexagonal fixing sleeve is fixed to the center drill bit, a regular hexagonal through hole allowing the regular hexagonal fixing sleeve to penetrate through is formed in the circular hole saw, a plurality of fixing frames are fixed to the circular hole saw at equal intervals in the circumferential direction, and threaded columns are installed on the fixing frames in a threaded screwing mode. According to the wall tapper, the regular hexagonal fixing sleeve penetrates through the regular hexagonal through hole to position the installation position of the center drill bit, the threaded column is rotated, the threaded column pushes the locking pressing block to be embedded into the locking groove to be locked under the screwing effect of threads, and the installation stability of the center drill bit is greatly improved; and meanwhile, the center drill bit is easy to disassemble and replace, and the use convenience is improved.

This product is a buried pipe window-opening tool with a peeling section, used in conjunction with a hole saw to create a window on the side of a buried pipe that houses electrical wires or the like to check the condition inside. As shown in the "Reference Perspective View Showing Usage," the cylindrical part of this product is fitted into an annular cutting groove that has been pre-cut to a half-depth of the pipe thickness using a hole saw. Then, by swinging the gripping side of this product, in which the cylindrical part is fitted, along the longitudinal direction of the buried pipe, a crack can be created in the thin remaining portion of the groove bottom around the core formed inside the cutting groove. The peeling section at the rear end of this product can be inserted into the crack around the core, and the core can be separated from the buried pipe by levering or other means.

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.

This invention is an improvement to the hole-cutting saw that is currently widely available in the market. A tiny cutting blade attached to the bottom inner wall of the hole saw to help shave out diameter of the cutout plug, and cone shaped pilot drill bit to reduce the friction between cutout plug and pilot drill bit. End result is the quick, easy separation of cutout plug from hole saw.

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 a rope saw side face supporting telescopic mechanism of a hole mining sawing machine, which comprises a sawing arm rod located on the side face of a machine frame of the hole mining sawing machine, the sawing arm rod is connected with the machine frame through a telescopic arm, and an electronic ruler located on the side of the telescopic arm is connected between the sawing arm rod and the machine frame. According to the rope saw side face supporting telescopic mechanism of the hole mining sawing machine, the electronic ruler located on the side of the telescopic arm is connected between the sawing arm rod and the rack, when the telescopic arm drives the sawing arm rod to conduct telescopic adjustment, the electronic ruler (namely a linear displacement sensor) synchronously stretches out and draws back, the specific stretching amount can be accurately detected, and the working efficiency is improved. The telescopic adjusting amount of the sawing arm rod can be accurately controlled, and the adjusting precision of the sawing arm rod is improved.

A trephine is provided. The trephine includes a hole saw sized to accommodate an implant, the hole saw having: a cylindrical body having a proximal end, a distal end and an outer surface, a plurality of circumferentially spaced cutting teeth at the distal end of the cylindrical body, and a plurality of helical grooves on the outer surface of the cylindrical body; and a quick connect coupled to the proximal end of the cylindrical body for releasably connecting to a cooperating quick connector of a tool.

A cutting tool may include a cutting accessory defining an opening and a channel formed on an inner surface of the cutting accessory. A cutting tool may include an arbor assembly including a shank having a first end received in the opening of the cutting accessory and a second end configured to be coupled to a power tool, a body movable relative to the shank, and an engagement member movable with the body relative to the shank, the engagement member configured to selectively engage the channel of the cutting accessory to releasably secure the cutting accessory to the shank.

A cutting tool may include a hole saw adapter configured to be coupled to a hole saw, the adapter comprising a first section, a second section opposite the first section, and a flange between the first and second sections, the first section comprising a threaded outer surface to receive the hole saw, and the second section comprising a polygonal outer surface.A cutting tool may comprise a receiving mandrel assembly comprising a coupling body defining a bore that receives the second section of the adapter, a shank extending from the coupling body and configured to be coupled to a power tool, a sleeve movable relative to the coupling body, and a retaining element positioned between the sleeve and the coupling body, the retaining element engaging with the second section of the adapter to detachably secure the adapter to the receiving mandrel assembly.

This invention provides the means for construction crews to easily drill through multiple beams or soffits with the use of a hole saw that is coupled to a first drive cup using a coupling arbor. The first drive cup is attached to a first end of an extension tube and is secured using self-tapping screws. A second drive cup is attached to a second end of the extension tube with self-tapping screws where a drive coupling arbor provides a hexagonal shank that is attached to a drive device, such as a hammer drill or standard drill. When activated the rotational motion allows the hole saw to cut through the beams or soffits. A pilot bit is provided to guide the hole saw into the beams or soffits when in use.

The present invention provides a quick change arbor, which can realize quick replacements of tools such as drill bit, hole saw and batch head on electric drills. The quick change arbor comprises an arbor main body, a pulling ring and a locking part. In the present invention, the tool is positioned and installed in an assembling position through the arbor main body, and the locking part within the first guiding groove abuts against the surface of the tool, so that the tool is tightly locked within the assembling position, thus to effectively eliminate the gaps occurred after the tool is assembled.

A cutting tool may include a hole saw adapter configured to couple to a hole saw, the adapter including a first portion, a second portion opposite the first portion, and a flange between the first and second portions, the first portion including a threaded outer surface that receives the hole saw, the second portion including a polygonal outer surface. A cutting tool may include an arbor assembly including a coupler body defining a bore that receives the second portion of the adapter, a shank extending from the coupler body and configured to be coupled to a power tool, a sleeve moveable relative to the coupler body, and a retaining member disposed between the sleeve and the coupler body, the retaining member engaging the second portion of the adapter to releasably secure the adapter to the arbor assembly.

The invention relates to a hole cutting tool with plug ejection comprising a hole saw having a first central bore and an adapter stem having a second central bore along a central axis. The adapter stem is configured to be coupled to a rotary drill at one end and attached to the hole saw at a first cutting position and detached from the hole saw at a second ejection position at the other end. The hole cutting tool also includes a pilot having an ejection shoulder. The pilot is slidably disposed in the second central bore of the adapter stem and received through the first central bore of the hole saw. The pilot is configured to translate along the central axis between a first drilling position and a second ejection position.

A hole saw connecting mechanism, including a rotary shaft assembly and a hole-opening assembly; the rotary shaft assembly has a drill bit limiting sleeve and a limiting mechanism; the hole-opening assembly has a quick connecting head, a pilot drill bit, and a cylindrical hole saw; the limiting mechanism has a limiting steel ball and a sliding sleeve. A first limiting hole penetrates through the drill bit limiting sleeve; the limiting steel ball is in the first limiting hole; the quick connecting head has a first positioning groove to limit the limiting steel ball. The sliding sleeve has circular sidewalls of different diameters to cooperate with the limiting steel ball to achieve locked and unlocked states of the quick connecting head with respect to the drill bit limiting sleeve. The pilot drill bit is mounted to the quick connecting head or the drill bit limiting sleeve through a collar assembly.

The welding equipment for drilling tool machining comprises a base and a welding gun, a fixing frame is connected to the base, the welding gun is placed on the fixing frame, a first positioning assembly and a second positioning assembly are arranged on the base, a limiting assembly is arranged on the base, and the limiting assembly comprises a supporting frame, a positioning cylinder, a lifting rod, a fixing ring and a pressure applying head. The positioning cylinder is obliquely arranged and penetrates through the fixing frame, the lifting rod penetrates through the positioning cylinder and the fixing ring to be connected to the lifting rod and is in threaded fit with the top end of the positioning cylinder, the pressure applying head is connected to the bottom end of the lifting rod, the supporting frame is connected to the base, a supporting groove is formed in the top end of the supporting frame, and two positioning arc grooves are formed in the cutter cylinder. The cutter cylinder is horizontally placed on the supporting groove, one positioning arc groove is attached to the positioning cylinder, the first positioning assembly is used for positioning the inner cutter, the pressing head presses the inner cutter on the inner wall of the cutter cylinder, and finally the first positioning assembly is taken out. The welding equipment has the effect of improving the welding efficiency of the welding equipment for circular hole saw machining.

The utility model provides a hole saw facilitating coring, and relates to the technical field of hole saws. Two discharging holes are symmetrically formed in the outer wall of the hole saw body and are each of a stepped-hole-shaped structure. Efficient discharging is achieved, the two stepped-hole-shaped discharging holes are symmetrically formed in the outer wall of the hole saw body, after drilling is conducted, a cylindrical prying rod can be easily inserted into the discharging holes for prying, wood blocks remaining in the hole saw body are effectively removed, particularly, the discharging holes of the stepped structure can adapt to wood blocks of different depths, and the machining efficiency is improved. The flexibility and the efficiency of unloading are improved; according to the auxiliary discharging assembly, the designed discharging assembly comprises guide rods, a second connecting base, a spiral spring and an adjusting groove, the wood block lower than a discharging hole can be ejected out through vertical sliding of the two guide rods, the discharging convenience is further enhanced, meanwhile, elastic reset of the guide rods when the guide rods are not used is guaranteed through the elastic force effect of the spiral spring, and the discharging efficiency is improved. And interference in the drilling process is avoided.