722results 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.

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.

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 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 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).

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

A power tool stand comprises a base; a projecting frame connected to the base; and a power tool carriage moveably mounted on the projecting frame. The power tool carriage comprises a first electrical interface arranged to electrically connect with a removeable power tool and a second electrical interface in electrical connection with the first electrical interface and arranged to electrically connect with a removeable battery.

An electric drill reduction structure and an electric drill. The present invention relates to an electric drill reduction structure and an electric drill, and provides an electric drill reduction structure, wherein the electric drill reduction structure comprises a wheel-type continuously variable transmission and a cycloidal pinwheel reducer. The present invention also provides an electric drill, which has the above-mentioned electric drill reduction structure. The electric drill reduction structure comprises a wheel-type continuously variable transmission and a cycloidal pinwheel reducer, and has the characteristics of a wide speed regulation range, stepless speed regulation, balanced operation, low noise, etc., and overcomes the problems of gear box grease easily flowing out of the shift hole and gear shift jamming in traditional structures. The electric drill equipped with the electric drill reduction structure is far superior to traditional gear box hand drills in terms of speed, torque and impact rate in screwdriver mode. Because stepless speed regulation can be achieved, no matter how much power is required, the user can always adjust the speed ratio of the reduction to make the power motor always operate under the maximum power or highest energy efficiency condition.

The invention discloses a handheld drilling machine intelligent positioning safety protection method and device based on load detection, and relates to the technical field of electrical automatic control, and the method comprises the following steps: S1, collecting equipment operation state data in real time, unifying timestamps, and storing the data in an equipment operation database; s2, carrying out data preprocessing, and constructing equipment operation state data fragments according to a fixed sliding time window; s3, jumping of the drilling machine in the operation process is detected in real time, high-frequency energy anomaly analysis is carried out, and therefore grading disturbance state judgment is carried out; s4, performing acceleration regulation and control evaluation, and implementing an acceleration regulation and control strategy; s5, monitoring run-out detection, high-frequency energy anomaly analysis and acceleration regulation and control evaluation results in real time, implementing an anomaly protection decision, and realizing visual execution and algorithm parameter tuning; the problems that the counter-acting force of a drilling machine is increased and the risk of injury is caused due to the fact that abnormal jumping of a drill bit is difficult to detect in time are solved.

A power tool assembly includes a hand-held rotary power tool and a attachment. The power tool includes a power supply, a tool housing and motor that is disposed in the tool housing. The motor includes a motor output shaft that is configured to be mechanically connected to an accessory, which may also be part of the assembly. The power tool includes a controller disposed in the tool housing. The controller is configured to control a speed of the motor. The attachment is configured to be connected to the tool housing. In addition, the attachment is configured to be at least one of electrically connected to the controller, electrically connected to the power supply and mechanically connected to the motor output shaft.

The utility model provides a positioning device for machining circular holes in the inner sides of sleeve parts, which belongs to the field of machining tools and comprises a vertical positioning component and a horizontal positioning component. The vertical positioning assembly comprises a threaded rod, a magnetic base is fixedly installed at one end of the threaded rod, and the magnetic base can be attracted to the inner surface of a to-be-machined workpiece. When the end, away from the magnetic base, of the threaded rod is inserted into a process hole, coaxial with a drill bit, of the rear end of the electric drill, the threaded sleeve can abut against a shell of the electric drill. The horizontal positioning assembly comprises a positioning frame, the positioning frame is provided with a workpiece connecting hole and a workpiece positioning hole, and when the workpiece connecting hole is aligned with a machined hole in the workpiece to be machined, the workpiece positioning hole is aligned with a hole to be machined in the workpiece to be machined. The utility model has the beneficial effects that the moving path is ensured to be a straight line when an on-site operator holds an electric drill by hand to process an inner side circular hole, and the precision of the processed circular hole is ensured.

To weld a stud dowel at an accurate position while reducing the physical burden on a worker welding the stud dowel. [Solution] The welding surface S is the side surface of the workpiece (1) that intersects with the upward surface or the downward surface of the workpiece (1), and the stud dowel welding device (W) is equipped with a welding gun (10) that holds a stud dowel (4) and welds the tip of the held stud dowel (4) to the welding surface (S), and a support part (20) that supports the welding gun (10) and has a movable mechanism that enables the welding gun (10) to move in a direction perpendicular to the welding surface (S) (Y-Y' direction), and in a first direction (X-X' direction) and a second direction (Z-Z' direction) that are perpendicular to the perpendicular direction, where the first direction and second direction are perpendicular to each other.

A rotary tool guide, such as a drill guide, includes a rotation transmission member and a tool guiding member. The rotation transmission member includes a rotary shaft extending to an end equipped with an object engaging mechanism adapted to engage an object, such as a bit, that is to be rotated. The tool guiding member includes a tool guide shaft and a surface contacting member. The tool guide shaft has a lumen adapted to receive the rotary shaft therein. The surface contacting member comprises a contacting surface adapted to contact a surface of a workpiece. The contacting surface of the surface contacting member defines an orientation angle relative to a longitudinal axis of the tool guide shaft lumen so that when the rotary shaft is advanced, the rotary shaft is maintained at the orientation angle.

The invention relates to the technical field of handheld gun drills, and discloses a brushless motor driven pistol drill which comprises a shell, the inner wall of the shell is fixedly connected with a brushless motor, the inner wall of the shell is rotatably connected with driving teeth through a bearing, a buffer mechanism is arranged in the shell, the buffer mechanism comprises a driving rod, and the driving rod is fixedly connected with the brushless motor. The outer wall of the side, close to the driving teeth, of the driving rod is fixedly connected with the inner wall of the driving teeth, the outer wall of the driving rod is connected with a hinged plate through a rotating shaft hinge, the other end of the hinged plate is fixedly connected with the outer wall of the connecting rod through a rotating shaft, and the inner wall of the driving rod is fixedly connected with an elastic push rod. And the other end of the elastic push rod is fixedly connected with the inner wall of the connecting rod. According to the handheld gun drill, the buffering mechanism is arranged to release reverse twisting force generated when the drill bit drills holes, the situation that the temperature of the brushless motor is increased due to the fact that instantaneous resistance of the brushless motor is increased is prevented, and the stability of the handheld gun drill in the working process is improved.

The present disclosure teaches a power tool and a safety device for a power tool. The power tool comprises a working part, a motor and a power source. At least one sounding device and at least one sensor for detecting one or more operating parameters of the tool. The controller controls the at least one sound emitting device to emit: a first sound in a first mode of operation, if one or more operating parameters detected by the at least one sensor satisfy a first predetermined threshold of the parameter; and a second sound in a second mode of operation, the second sound being different from the first sound if one or more operating parameters detected by the at least one sensor satisfy a second and different predetermined threshold for that parameter.

To assist drilling operations so that a targeted hole is formed in an object to be drilled.SOLUTION: An attachment is attached to an electric excavator. An electric excavator comprises a motor housing that houses a motor, a handle housing located behind the motor housing and having a grip portion provided with a trigger switch for activating the motor, a gear housing located in front of the motor housing to accommodate gears, and a rotation output section protruding downward from the gear housing to which a drill bit is attached. The attachment includes an auxiliary pole arranged along the vertical direction at a position adjacent to the drill bit.SELECTED DRAWING: Figure 23

The invention relates to the technical field of drilling-dimpling combined pneumatic tool for supporting plate nuts, and particularly discloses a drilling-dimpling combined pneumatic tool for supporting plate nuts, which comprises a handle, a vent pipe hole is formed from the upper end face to the lower end face of the handle, and a working cavity is fixedly mounted at the upper end of the handle; a baffle is fixedly mounted in the working cavity, a movable baffle is slidably arranged on the left side of the interior of the working cavity, working rods are fixedly mounted on the two sides of the movable baffle, resistance cavities are fixedly mounted on the front side face and the rear side face of the working cavity, and the working rods are slidably mounted in the resistance cavities. The drilling and dimpling procedures are integrally completed, tools do not need to be frequently replaced, and the operation time is greatly shortened. Meanwhile, due to the integrated design of all the components, the consistency of tool positioning in the drilling and dimpling process is guaranteed, the coaxiality of the two working procedures is remarkably improved, the problem that the assembling precision is insufficient due to positioning deviation in traditional step-by-step operation is effectively solved, and the mounting quality and the connecting stability of the supporting plate nut are improved.

A power tool stand includes a base and a frame connected to the base. A power tool carriage is mounted on the frame. A tool interface is mounted on the power tool carriage and arranged to secure a removeable power tool. The power tool carriage comprises at least one duct configured to convey a fluid. The tool interface includes a moveable fluid connector in fluid communication with the at least one duct wherein the moveable fluid connector is configured to move from a first position to a second position.

A core drill includes: a motor having a rotor, which is rotatable relative to a stator about a rotational axis extending in the front-rear direction; a speed-reducing mechanism, which is disposed more forward than the stator; an output shaft, at least a portion of which is disposed more forward than the speed-reducing mechanism and which, in the state in which a core bit is mounted thereon, is rotated by the rotational force of the rotor transmitted via the speed-reducing mechanism; a battery-mounting part, on which a battery pack is mounted; a motor-housing part, which houses the motor; a grip part, at least a portion of which is disposed along the extension of the rotational axis more rearward than the motor-housing part; and a controller, which controls the motor. In the front-rear direction, at least a portion of the controller is disposed between the motor and the grip part.

A drilling apparatus comprising a top body that extends horizontally, a top socket configured underneath the top body to allow for multidirectional movement, and a ball joint positioned beneath the top socket. This ball joint is in contact with the top socket and enables 180-degree horizontal rotation and 90-degree vertical tilt. Additionally, a bottom socket is configured underneath the ball joint to provide stability. The apparatus features a motor connected to a rotary output and includes a trigger switch or button located on a vertically aligned handle. An integrated stud finder, activated by a detachable accessory, allows users to quickly locate studs behind walls before drilling. This apparatus is configured to enhance maneuverability and user comfort, for use in a variety of professional and personal home improvement settings.

The utility model provides a magnetic drill press heat dissipation air duct which comprises a first shell, and an air inlet and a first air outlet are formed in the first shell; the second shell is connected to the first shell, the second shell and the first shell are symmetrically arranged, and a controller heat dissipation cavity and a mounting groove are jointly formed between the first shell and the second shell; a first air duct is formed in the controller heat dissipation cavity, an aluminum radiator is installed on the first air duct, and the first air duct is communicated with the air inlet; the mounting groove is used for mounting a motor, and a second air duct is formed in the motor; and the first air duct is communicated with the second air duct. According to the utility model, the problem of machine failure caused by heating of the high-power tube of the motor controller in the working process of the magnetic drill press is solved.

The utility model discloses a percussion drill with a hammering protection mechanism. The percussion drill with the hammering protection mechanism comprises a shell. The control shaft penetrates through the shell to be provided with a rotatable control shaft; the control part is matched with the shell and is convexly arranged on the control shaft; and the clamping blocks are arranged in the control part in a sliding mode, limiting grooves are formed corresponding to the clamping blocks, the control shaft is rotated until the clamping blocks enter the limiting grooves, and the control shaft is limited in the shell. The movable clamping block is arranged on the control part, meanwhile, the control part is matched with the control shaft in the shell so that the control part can be locked in the shell, the first inclined face of the clamping block and the control sleeve of the hammering piece are matched so that the installed hammering piece can be normally used, and the reloading efficiency is improved.

The invention discloses a high-altitude trepanning electric hammer auxiliary support convenient to operate. The high-altitude trepanning electric hammer auxiliary support comprises a support base; the adjusting platform is arranged on the bracket seat in a lifting manner; the connecting rod adjusting mechanism is arranged on the adjusting platform, and the connecting rod adjusting mechanism comprises two groups of rotating connecting rods and connecting connecting rods which are arranged in parallel. Through the structural arrangement, the relative position of the adjusting platform on the support base can be adjusted to adjust the overall height of the adjusting platform, then the connecting rod adjusting mechanism can be adjusted according to the angle needed by the preset hole site so that the electric hammer can be in a designated inclined posture, and finally the electric hammer can be pushed to act on the preset hole site through the progressive push rod. The drilling work of various inclined holes is completed, during drilling work, force fed back by the electric hammer can act on an operator through the progressive push rod, so that the operator with rich experience can judge whether the drilling position is opened or not and whether foreign matter is drilled or not, and compared with direct driving of a driving mechanism in the prior art, accurate judgment of constructors is more convenient.