935results 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 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.

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.

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 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).

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.

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

An electric work machine reduces noise from the electric work machine. An electric work machine includes a motor including a stator including a stator core and coils, and a rotor including a rotor core and a rotor shaft, an output unit located frontward from the motor and rotatable with a rotational force from the motor, a first support having a first contact surface in contact with a front end face of the stator core, a second support having a second contact surface in contact with a rear end face of the stator core, and a screw connecting the first support and the second support and fastening the stator core to the first support and the second support in a front-rear direction.

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 utility model provides a skin hole stopper, which relates to the field of aerospace manufacturing technology. It includes a clamping sleeve for clamping and fixing a drill bit, and a locking sleeve for locking and fixing the clamping sleeve. A rotating bearing is fixedly arranged at one end of the clamping sleeve, and the inner ring of the rotating bearing is fixed to the clamping sleeve, and a stop pad is arranged on the outer ring. The stop pad and the clamping sleeve are located on the opposite side of the rotating bearing. The utility model clamps and fixes the drill bit by the clamping sleeve, and then uses the locking sleeve to lock and fix it, so that the device and the drill bit form a reliable integrated structure, which is suitable for high-speed movement occasions, and then the clamping sleeve is fixed to the inner ring of the bearing, and the stop pad is fixed to the outer ring of the bearing, so that the drill bit and the inner ring move in unison, and the stop pad and the outer ring move in unison, so that the drilling hole and the stop pad move independently, thereby ensuring the drilling depth without damaging the skin.

The utility model relates to the technical field of electric tools, in particular to a lithium electric drill. The motor is used for providing driving force for the electric drill; the control switch is used for controlling start and stop of the motor; the drill bit shaft sleeve is detachably connected to the electric drill body through a bolt, a fixing block is installed on the drill bit shaft sleeve, and a locking groove is formed in the fixing block; the lithium battery pack is used for providing electric energy for the motor; the front cover assembly comprises a connecting cover, a first spring and a mounting plate. The drilling machine has the advantages that by designing the detachable front cover assembly, chippings and dust generated during drilling operation are effectively prevented from splashing, the visual clarity and breathing health of an operator are protected, meanwhile, pollution to the operation environment is reduced, the clean operation space is maintained, the front cover assembly has the rapid disassembly and assembly function, and the working efficiency is improved. And a user can easily adjust the electric drill according to different operation requirements and environmental conditions, so that the electric drill can be conveniently maintained to be clean, the use convenience and adaptability are improved, and the working efficiency is improved.

The utility model relates to the field of electric tools, in particular to a rivet pulling, nut pulling and gun drill three-in-one multifunctional lithium battery tool. The gun drill comprises a gun drill main body, a riveting gun head, a nut pulling gun head and a gun drill head, the pistol drill main body comprises a gear box and a brushless motor; the hand riveter head comprises a fixing sleeve clamped on the gear box, a connecting sleeve a which is in threaded connection with the gear box and internally presses the fixing sleeve, an outer sleeve which is in threaded connection with the fixing sleeve, a screw rod which is connected with the output end of the gear box, and a screw rod fixing sleeve which is in threaded connection with the screw rod and is arranged on the inner side of the outer sleeve in a sliding manner; the gun head clamping assembly is connected with the screw rod fixing sleeve and the outer sleeve; the nut pulling gun head comprises a connecting shaft a connected with the output end of the gearbox, a bearing a arranged on the connecting shaft a in a sleeving mode, a connecting sleeve b which is in threaded connection with the gearbox and internally presses the bearing a, a pull rod sleeve connected with the connecting sleeve b and a pull rod connected with the connecting shaft a. Different gun heads can be conveniently replaced according to use requirements.

The utility model provides a drilling device for installation of heating and ventilation equipment, which belongs to the technical field of installation of heating and ventilation pipelines, and comprises an installation frame and a fixing frame fixedly connected to the side wall of the installation frame, and further comprises two groups of clamping parts slidably connected to the outer wall of the installation frame and symmetrically arranged about the central axis of the installation frame; a drilling member; wherein the side wall of the clamping rod is further fixedly connected with a connecting frame, the inner wall of the connecting frame is further slidably connected with an extrusion rod matched with the fixing component, and a sliding groove is further formed in the inner wall of the clamping rod; and the linkage part is slidably connected to the inner wall of the mounting frame. The drilling position can be conveniently adjusted, the fixing process is simplified, and meanwhile the drilling convenience is remarkably improved.