1439results about "Portable drilling machines" 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.

A power tool system including a power tool base having a main body, an electric including an output, and a tool-side attachment mechanism coupled to the main body, the tool-side attachment mechanism having a tool-side locking lug and a tool-side slot adjacent the tool side locking lug. An accessory is configured to be selectively coupled to the power tool base and includes an accessory-side attachment mechanism having an accessory-side locking lug and an accessory-side slot, the accessory-side locking lug selectively engagable with the tool side slot and the accessory-side slot selectively engagable with the tool-side locking lug, a gear arrangement configured to be operably coupled to the output of the electric motor to receive torque from the electric motor, and a tool holder configured to be driven by the gear arrangement. The accessory-side attachment mechanism selectively engages the tool-side attachment mechanism to axially couple the accessory to the power tool base.

The invention provides a dual-motor automatic feeding core drilling machine and a control method thereof. A main shaft motor module and a feeding motor module of the automatic feeding core drilling machine are distributed on the two sides of a rotary feeding composite module, and the main shaft motor module and the feeding motor module are mechanically connected at the tail end of a driving motor. And the automatic feeding drill controller and the composite cable connector are concentrated on the right lower side of the equipment. The main shaft motor module and the feeding motor module respectively provide power sources for the rotating motion and the feeding motion of the screw rod for the rotating and feeding composite module, so that the rotating speed and the feeding speed of the screw rod are controlled; the screw rod drives the drill bit to do controlled rotary feeding motion, and drilling machining is completed; the main shaft motor realizes output of two power transmission paths of the main shaft motor module through switching of forward rotation and reverse rotation, and realizes invariable-speed output and 2.5-3.6-time acceleration output of the main shaft motor module through cooperation of different gear sets. Coverage of different rotating speeds and feeding speeds can be achieved on the gear set layout, and a stable closed structure, a reasonable hand holding space and a convenient operation mode are achieved.

A carrier system holds and facilitates access to implements usable with any one of a variety of tools. The carrier system includes a universal holder and a plurality of distinctive tool-attaching adapters. The universal holder defines implement-receiving openings, each of which is configured to receive a corresponding one of the implements therein. Each of the tools defines a distinctive carrier-receiving portion. Each of the tool-attaching adapters is engageable with and complementally corresponds to a respective one of the carrier-receiving portions. The universal holder is individually securable to the tool-attaching adapters. The universal holder is mountable to each the tools upon engagement of a selected one of the tool-attaching adapters with the respective one of the carrier-receiving portions, attachment of the selected one of the tool-attaching adapters to the respective one of the carrier-receiving portions, and securement of the universal holder to the selected one of the tool-attaching adapters.

The invention provides a maintenance tool suitable for high-precision positioning of a space solar wing. The maintenance tool comprises a clamping positioning tool and an electric drilling tool. The clamping and positioning tool comprises a clamping assembly, a handle fixing assembly and an angle positioning assembly. The clamping assembly is used for clamping the space solar wing and providing an alignment window corresponding to a to-be-maintained part on the space solar wing; the handle fixing assembly provides extra pressure for the clamping assembly after the clamping assembly clamps the space solar wing, and reliable fixing of the space solar wing is achieved. The angle positioning assembly drives the electric drilling tool to move to the alignment window; the electric drilling tool comprises a motor driving part, a drilling part and a protection part. The protection component is used for providing outboard protection for the drilling component in a non-operation stage, and during operation, the protection component is taken down, and a tool bit of the drilling component is aligned to a drilling area of outboard equipment; the motor driving part is used for providing stable rotation output in the drilling direction; and the drilling component takes the output of the motor driving component as the input to ensure that the tool bit is always kept in close contact with an object through the applied downward pressing acting force in the operation process to complete drilling maintenance.

A driver drill may include: a motor; an output part provided forward of the motor and driven by the motor; a speed reduction mechanism disposed between the motor and the output part; a motor bracket disposed between the motor and the speed reduction mechanism; a housing that houses the motor and the motor bracket; an element provided above the motor or the speed reduction mechanism; and a lead wire connected to the element and extending more downward than the motor or the speed reduction mechanism. The lead wire may be sandwiched between the housing and the motor bracket.

The utility model provides an angle-changeable drilling structure, which relates to the technical field of drilling structures and comprises a fixing frame. The rear end of the fixing frame is fixedly connected with a motor, a rotating shaft of the motor is fixedly connected with the rear end of a universal coupling piece A, the universal coupling piece A is rotationally connected to the middle of the interior of the fixing frame, the front end of the universal coupling piece A is slidably connected with the rear end of a universal coupling piece B, and the universal coupling piece B is rotationally connected to the middle of the interior of a rotating frame. According to the device, through the self multi-joint design of the universal coupling piece A and the universal coupling piece B, a traditional straight rotating shaft is replaced, the length occupation of the rotating shaft and the drill bit is reduced, and the device is more suitable for being used for punching in a narrow position. The problems that when an existing punching device conducts punching, the positions of a rotating shaft and a drill bit are basically in the same straight line, the length of the rotating shaft and the length of the drill bit can interfere with the position needing punching, and it is inconvenient for the drill bit to conduct punching operation on a drilling area directly are solved.

The invention discloses a hand-held drill based on spiral airflow chip removal, and relates to the technical field of mechanical engineering, the hand-held drill comprises a machine body and a first assembly mounted on the machine body, the first assembly comprises a positioning frame for assisting rapid disassembly and assembly, the outer ring of the positioning frame is fixedly connected with a wedging body A, and the upper end face of the vertical line of the positioning frame is fixedly connected with a clamping body; through the arrangement of the first assembly, the clamping groove is matched with the wedging body B in a sliding clamping mode, the quick connecting groove is matched with the wedging body A in a sliding clamping mode, quick mounting of the quick connecting frame and the machine body is achieved, and the structure can be flexibly mounted or dismounted according to actual requirements when facing different drilling operation scenes and materials; after the operation is finished, the assembly can be detached from the machine body for independent and thorough cleaning, so that the influence on the next use caused by residual chippings is avoided; and meanwhile, during storage, the disassembled components and the fuselage can be separately stored, so that the storage space is saved, and mutual collision and damage among the components can be avoided.

An intelligent electric drill includes a case which has an MCU control unit, a drive unit, a power unit, and a data unit. The MCU control unit controls the power, speed, and torque of the drive unit. A mechanical speed mode recognition module group is electrically connected to the MCU control unit and includes a speed mode recognition electronic module and a plastic speed mode module within the case. The mechanical speed mode recognition module group determines the switching position of the plastic speed mode module, and the speed mode recognition electronic module inputs the determined signal to the MCU control unit. This allows users to automatically recognize the positions of mechanical speed mode and function mode while driving with the electric drill. Users can drive with accurate and appropriate power, achieving precise output of speed, torque, and workload.

The invention belongs to the technical field of door and window trepanning, and particularly relates to a broken bridge aluminum alloy door and window machining automatic trepanning structure which comprises a rectangular outer frame, a clamping part, a drilling positioning frame and an electric drill body. The clamping part is arranged on the lower side of the outer frame and comprises two fixing clamping plates, and one fixing clamping plate is fixedly arranged at the edge position, close to the right side, of the lower side of the outer frame. The drilling structure can be rapidly and integrally fixed in the wall hole, then the position, to be drilled, of the door frame is fixed relative to the wall hole, and profile micro-deviation caused by drilling vibration is effectively weakened. Through the drilling positioning frame, by means of strict limiting of an electric drill moving area, the electric drill is prevented from exceeding a preset area to damage heat insulation strips or reinforcing ribs in the drilling process; and meanwhile, accurate drilling guide positioning is achieved, damage of drilling deviation to the sealing integrity of the heat insulation strips and the bearing structure of the reinforcing ribs is reduced, the heat insulation performance and the wind pressure resistance of the broken bridge aluminum profile are guaranteed, and structural potential safety hazards in long-term use are eliminated.

The utility model provides a novel electric drill which comprises a shell, a motor, a drill bit quick connecting piece and a battery module are arranged in the shell, one end of the drill bit quick connecting piece is in driving connection with the output end of the motor, the other end of the drill bit quick connecting piece is used for being detachably connected with an external drill bit, and the battery module is detachably assembled in the shell and supplies power to the motor. The drill bit quick connecting piece is configured to be capable of achieving a locked butt joint state with a drill bit. The shell is further provided with a touch piece, and the touch piece is configured to be used for releasing the locking state of the drill bit quick connecting piece and the drill bit. According to the novel electric drill, the appearance of a traditional electric drill is broken from the aspect of attractiveness, and the novel electric drill has future science and technology sense and intelligent design; the exposed rotating part is hidden through the shell, so that the possibility that long hair is rolled in can be reduced, or the risk that fingers touch by mistake can be reduced; and finally, the drill bit is quickly disassembled by arranging the touch piece, so that the drill bit is convenient for non-professional users to use and wide in application range.

A suspension-type drilling device, comprising a suspension system (2), a control system (1) and a drilling mechanism (3). A bow-shaped arm (207) in the suspension system (2) is connected to a balancing lead screw (306) in the drilling mechanism (3) by means of a horizontal adjusting sliding block (208). The control system (1) is connected to a driving motor of the drilling mechanism (3) by means of a cable (102). For vehicle structures of special vehicles of different models and the positions and sizes of grouped holes around an axle hole, a fixed drilling device is designed to be of a suspension type, a fixed drilling size is designed to be adjustable, and process automation is achieved for manual clamping and manual drill bit rod replacement; in this way, the machining of grouped holes around axle holes of various vehicle types is met, and the universality and the low cost of the device are realized, thereby reducing the labor intensity of personnel and improving the production efficiency.

A dust remover comprises: a nozzle; a dust remover shell; a dust tube coupled to the nozzle and slidable relative to the dust collector housing between an extended position and a retracted position; and a dust collection container selectively coupled to the dust collector housing. The conveying pipe is configured to guide air from the dust collecting pipe to the dust collecting container, the dust collecting pipe comprises an open hole part and a cover, the open hole part is aligned with the conveying pipe, and the cover is slidably connected to the dust collecting pipe to selectively close the open hole part.

An attachment for a hand-held power tool, wherein the attachment has an attachment housing and a drive element on a drive side, which drive element can be coupled to a machine output element of the hand-held power tool in order to drive the attachment and is firmly connected to an output element of the attachment or is motion-coupled via a gear to drive a working tool, wherein the attachment has a fastening device on the drive side for detachable fastening to the hand-held power tool, wherein the fastening device has at least one support surface that is stationary with respect to the attachment housing for providing support on the hand-held power tool in the direction of a support axis and at least one locking body adjustable between a locking position and an unlocking position and loaded into the locking position by a spring assembly.

A power tool includes a first housing, a dust box coupled to the first housing and defining an inlet and an outlet, a filter positioned between the inlet and the outlet, and a first motor operating a fan to generate an airflow across the filter between the inlet and the outlet. The power tool also includes a first sensor to sense an airflow characteristic of the airflow and a second sensor to sense an operating parameter of the power tool. A first controller is in communication with the first sensor to monitor the airflow characteristic of the airflow and the second sensor to monitor the operating parameter. The first controller controls operation of the power tool based on a value of the airflow characteristic and the operating parameter.

The invention relates to the technical field of handheld gun drills, and discloses a lithium battery wireless operation gun drill which comprises a gun body, a supporting sleeve is fixedly connected to the outer wall of the gun body, a first sliding sleeve is slidably connected to the outer wall of the supporting sleeve, and a driving rod is rotatably connected to the inner wall of the gun body through a bearing; a sliding rod is slidably connected to the outer wall of the driving rod through a spline, a chuck is fixedly connected to the end, away from the driving rod, of the sliding rod, a supporting mechanism is arranged on the outer wall of the first sliding sleeve and comprises a third sliding sleeve, the inner wall of the third sliding sleeve is slidably connected with the outer wall of the first sliding sleeve, and a second positioning block is inserted into the inner wall of the third sliding sleeve. The gun body is supported through the supporting mechanism, the friction force between the gun body and the surface of the metal plate is increased, when the drill bit is stuck, the impact force generated by self-rotation of the gun body part is released to the surface of the metal plate through the pressing plate and the pressing block, and the situation that the counter impact force generated by sticking of the drill bit in the drilling process is too large is avoided.

The utility model discloses a cable trench drilling device, which comprises an electric drill, an angle steel bracket, a sliding support rod, a plurality of groups of pulleys, a sliding rail, a movable framework, a rotating shaft, a control rod, a cushion block and a spring, the electric drill is connected with the angle steel bracket, one end of the sliding support rod is connected with the angle steel bracket, and the other end of the sliding support rod is connected with the pulleys. Wherein one group of pulleys are slidably connected with the sliding rail in a matched mode, the other group of pulleys are installed at the top end of the movable framework in a matched mode, the rotating shaft is movably connected with the movable framework, the control rod penetrates through the rotating shaft, one end of the spring is connected with the angle steel bracket, and the other end of the spring is connected with the control rod. The lower half part of the control rod is matched and connected with the cushion block. According to the utility model, the construction difficulty caused by the space limitation of the cable trench is solved, and the problem that the cable bracket is unstable due to the difficulty in inserting an expansion bolt into a hole caused by the deviation of the formed hole due to the non-uniform stress of manual punching is avoided.

The utility model relates to the technical field of square-handle drill bits, and discloses a square-handle electric hammer drill bit which comprises a square-handle rod and an electric hammer head, the square-handle rod and the electric hammer head are connected through threads, a scrap removing assembly is arranged in the electric hammer head and comprises a connecting base and a sleeve, the connecting base and the electric hammer head are connected through threads, the connecting base is arranged in the electric hammer head, and the sleeve is sleeved with the connecting base. The connecting base and the sleeve are connected through a reset spring, kidney-shaped holes are formed in the side face of the sleeve at intervals in the center line direction of the sleeve and communicate with the interior of the sleeve, a spiral groove is formed in the electric hammer head, and ventilation holes are formed in the inner side of the spiral groove at intervals. Driving force generated in the drilling process of the electric hammer is utilized, so that the scrap removing assembly can blow air to the spiral groove of the drill bit from inside to outside, scrap iron can be discharged from the spiral groove more conveniently, and the situation that the drilling efficiency is not high due to the fact that scraps are not discharged in time due to blocking of the scraps is avoided; and the drilling speed of the electric hammer drill bit is further improved.

Electric drills needs a spot to attach accessories to. Adding a light or a magnetic tray to a drill would make working easier. The light on a drill is small so adding accessories to a drill is important. There is no spot to add accessories on a drill. To add accessories to a drill, a mount will have to be installed. A piece of metal will be attached the motor of the drill. The placement of this mount will be on the top of the drill towards the back. The mount will be shaped in a way that another piece of metal will be able to slide into its grooves to lock in place. This will allow the two mounts to slide together and lock. The mount is designed too slide on from the back and then stop when it is slid together. Looking at the mount from the top looks square. This keeps the accessory from spinning left to right. It will keep the accessory straight. Adding this new mount solves the problems of using different accessories quick and easy on a drill. Its also a safer way to mount accessories because its designed to hold them.

The utility model relates to the field of percussion drills, and particularly provides a percussion drill convenient to switch modes. The percussion drill comprises a percussion drill body, a driven assembly and a telescopic assembly, the telescopic assembly comprises a telescopic column, the left end of the telescopic column is fixedly connected to the output end of the right side of the percussion drill body, the right end of the telescopic column is sleeved with a drill bit, and a driven disc is located on the right side of the drill bit. The technical problems that a flat-head drill bit or a cross-shaped drill bit of an existing percussion drill needs to be disassembled, assembled and replaced, drilling work is often high in repeatability, frequent disassembly, assembly and replacement of the drill bit are troublesome, efficiency is affected, the connecting position of a transmission structure of the percussion drill and the drill bit is prone to being abraded, and convenience is not achieved are solved. And abrasion of the joint of the output end of the percussion drill body caused by repeated disassembly is avoided, and the percussion drill is simple and stable in overall structure, convenient to use and good in practicability.

The invention discloses an electric drill motor overload protection device, and relates to the technical field of circuit overload protection, the electric drill motor overload protection device comprises an electric drill main body, the side part of the electric drill main body is provided with a driving module, the electric drill main body is internally provided with an overload assembly, the overload assembly comprises a hard through pipe and an elastic through pipe, and the hard through pipe and the elastic through pipe are internally provided with connecting wires in a penetrating manner; composite connecting pieces are assembled outside the sides, close to each other, of the two connecting rods; the whole composite connecting piece is of a double-layer structure, the inner layer is an electrified contact head used for achieving circuit conduction, the outer layer is an adsorption magnetic ring playing a role in adsorption and fixation, thermal expansion of the heat sensitive piece is a continuous process, but the action of triggering the upper inclined plate to move to disconnect the circuit is completed instantly, and therefore the heat sensitive piece is not damaged. The delayed process of temperature accumulation is converted into the instant action of mechanical triggering, so that the response of the protection device is quicker and more reliable, timely intervention can be performed when the temperature of the motor just exceeds the safety range, and the operation time of the motor at the dangerous temperature is effectively shortened.

The utility model relates to the technical field of electric drill bit lubrication, in particular to an electric drill bit self-lubricating device. Comprising an electric drill chuck and a tapping drill bit, one end of the tapping drill bit is arranged in the electric drill chuck, a jacket is arranged below the electric drill chuck, the tapping drill bit is sleeved with the jacket, a lubricating oil tank is arranged on the peripheral wall of the jacket, a cavity for containing lubricating oil is formed between the outer wall of the jacket and the inner wall of the lubricating oil tank, and an oil injection hole is formed in the upper end of the lubricating oil tank. A plurality of oil outlet holes are formed in the lower part of the jacket; the clearance between the two adjacent bearing clamping jaws on the electric drill chuck in the prior art is matched with the clamping jaw, the lubricating oil tank is installed at the bottom of the electric drill chuck and rotates along with the electric drill chuck and the tapping drill bit, lubricating oil in the cavity falls to the rotating part of the tapping drill bit, manual lubricating oil smearing is not needed, and the working efficiency is improved. The working efficiency is improved, the situation that the tapping drill bit is damaged due to working errors is reduced, and the service life of the tapping drill bit is effectively prolonged.

The invention provides height-adjustable drilling equipment which comprises a base, at least three mounting rods, a mounting cylinder, a telescopic rod and an electric drill, each mounting rod is fixed to the side wall of the base through a mounting part, a universal wheel is arranged at the bottom of each mounting rod, the mounting cylinder is fixed to the top of the base, and the telescopic rod is arranged on the mounting cylinder. The telescopic rod is slidably connected with the mounting cylinder in the vertical direction, the mounting cylinder is provided with a locking assembly used for locking the telescopic rod and the mounting cylinder, the electric drill is fixed to the side wall of the telescopic rod through the mounting assembly, and the problem that in the prior art, drilling in the decoration suspended ceiling conversion layer is inconvenient is solved.

The present disclosure relates to a tool holding arrangement (1, 1′, 1″) comprising a rotatable shaft (2, 2′, 2″) which is at least connectable to a tool driving power source (3) and comprises a first shaft thread (4, 4′). The tool holding arrangement (1, 1′, 1) comprises a thread insert (5, 5′) that comprises a first insert thread (6, 6′), adapted to engage the first shaft thread (4, 4′) so as to form a first thread arrangement (4, 6; 4′, 6′). The thread insert (5, 5′) comprises a second insert thread (7) that is adapted to engage a tool thread (8) of a tool holding device (9) that is arranged to be 2 screwed onto the second insert thread (7) so as to form a second thread arrangement (7, 8), the first thread arrangement (4, 6; 4′, 6′) having a higher pitch than the second thread arrangement (7, 8).

The invention relates to an electric drill speed reduction structure and an electric drill, and provides the electric drill speed reduction structure which comprises a wheel type continuously variable transmission and a cycloidal pin wheel speed reducer. The invention further provides an electric drill. The electric drill is provided with the electric drill speed reduction structure. The speed reduction structure of the electric drill comprises a wheel type continuously variable transmission and a cycloidal pin gear speed reducer, has the characteristics of wide speed regulation range, stepless speed regulation, balanced operation, low noise and the like, and simultaneously overcomes the problems that lubricating grease of a gear box is easy to flow out of a gear shifting hole and the gear shifting is blocked in the traditional structure; the electric drill provided with the electric drill speed reduction structure is far superior to a traditional gear box type electric hand drill in the aspects of rotating speed, torsion and impact rate in a screw driver mode, and due to the fact that stepless speed regulation can be achieved, no matter how power is needed, a user can always enable a power motor to work under the working condition of the maximum power or the maximum energy efficiency by adjusting the speed ratio of speed reduction all the time.

A power tool includes a housing, a motor supported within the housing, a transmission operatively coupled to the motor, the transmission shiftable between a low speed high torque mode and a high speed low torque mode, a spindle configured to receive torque from the motor through the transmission, a speed selector including an actuator movable to shift the transmission between the low speed high torque mode and the high speed low torque mode, a shaft movable in response to movement of the actuator, a magnet coupled to the shaft, and a controller configured to vary an operating speed of the motor based on a detected position of the magnet.

The utility model relates to a drilling tool for a cable bracket on the side wall of a bridge. Comprising a supporting frame, an operating rod and an electric drill fixing frame, the supporting frame comprises a bridge side wall top placing frame and an electric drill containing frame, and the bridge side wall top placing frame is formed by connecting two parallel rods through a transverse connecting rod; the electric drill containing frame is formed by connecting two rectangular frames through a transverse rod and fixedly connected with two parallel rods on the top of the side wall of the bridge, and the two ends of the two parallel rods are perpendicularly connected with two vertical rods respectively. Rolling wheels are installed at the bottoms of rods arranged in parallel on the two bridge side wall top placement frames and the sides, close to the electric drill containing frame, of the two vertical rods arranged in parallel and connected with the rods, an operator standing platform is connected to the bottoms of the two vertical rods close to the side of the control rod, one end of the control rod is connected with the electric drill containing frame, and the other end of the control rod is connected with the electric drill containing frame. The transverse connecting rod is connected with a bridge side wall top mounting frame. The method has the effects of simplicity in operation, high construction efficiency and safety in operation.

To suppress noise generated from an electric work machine.SOLUTION: An electric work machine includes a motor including a stator including a stator core and a coil attached to the stator core, and a rotor including a rotor core and a rotor shaft fixed to the rotor core, an output portion that is placed in front of the motor and rotates by the rotational force of the motor, a first support member having a first contact surface that contacts the front end surface of the stator core, a second support member having a second contact surface that contacts the rear end surface of the stator core, and a screw connecting the first support member and the second support member such that the stator core is tightened from the front and rear directions by the first support member and the second support member.SELECTED DRAWING: Figure 8

The present invention provides an electric drill, comprising a bracket, a drill rod, a motor assembly and a switch assembly; the bracket is provided with a handle, the switch assembly is mounted on the handle; the switch assembly comprises: a first micro switch, the first micro switch is configured to start or stop the motor assembly; a switch, the switch is pivotally mounted on the handle through a pivot; and a self-locking button, the self-locking button cooperates with the switch and is configured to: when the self-locking button is in a first state, the self-locking button abuts against the switch to prevent the switch from rotating around the pivot; when the self-locking button is in a second state, the self-locking button is out of contact with the switch, and the switch can rotate around the pivot. Compared with the prior art, the electric drill of the present invention is provided with a self-locking button so that the electric drill will be started only when and only when the switch and the self-locking button are triggered at the same time, thereby improving the safety factor of the electric drill.