770results about "Portable grinding machines" patented technology

The invention discloses a steel pipe polishing equipment, which comprises a steel pipe polishing equipment body. A main valve of a polishing motor is arranged in the main body of the steel pipe polishing equipment; a polishing handle is arranged on the main valve of the polishing motor; The valve is provided with a rotating roller; the front end of the rotating roller is provided with polishing bristles; one side of the rotating roller is provided with an outer throwing roller; a clamping spring is arranged between the outer throwing roller and the rotating roller; The outer throwing roller is provided with an outer throwing brush; a symmetrical magnet is arranged between the outer throwing brush and the polishing bristles; a polishing wheel is arranged on the outer throwing brush and the polishing bristles; the polishing The grinding wheels are arranged in a figure-eight shape. Its structure is simple, easy to use, and easy to operate. It can realize the polishing of the outer surface and the inner wall. The polishing is fast and uniform, with high efficiency and convenient use.

The invention discloses a combined type wind power blade rear edge mold closing foam machining tool, and relates to the technical field of grinding equipment. Comprising a grinding machine control main body, a grinding driving mechanism is arranged at the left side end of the grinding machine control main body, a rotating plate is arranged at the lower end of the grinding driving mechanism, grinding abrasive paper is arranged below the rotating plate, a protective dust collection mechanism is arranged on the outer side of the rotating plate, and an auxiliary frame is arranged on the side wall of the grinding machine control main body. The closed grinding space is constructed through the protective dust collection mechanism, the elastic cover and the abutting ring are matched to seal the grinding area, the dust collection opening, the dust collection frame and the dust collection pipe are matched to form a negative pressure dust collection channel, foam chippings generated during grinding can be rapidly collected, and meanwhile the situation that the chippings are attached to the surface of a mold or a blade to affect the mold closing precision and the bonding quality is prevented. And the sweeping mechanism is matched with the vibration block and the supporting spring, and vibrates after the vibration block collides with the sweeping rod, so that the swept chippings are shaken off and are extracted from the dust suction opening, and the chipping cleaning efficiency is further improved.

Tool, especially for preparing a pipe end for crimping, with a sleeve with a first end and an opposite second end, wherein the sleeve has an interior space, a drive element connected to the first end of the sleeve for rotating the sleeve, the interior is designed to accommodate a pipe end wherein an abrasive is arranged in the interior for grinding the pipe end when the tool is rotated.

A clip-on guard assembly for a tool guard is disclosed. The tool guard provides shielding for a tool, and the clip-on guard assembly can be detachably mounted to the tool guard to provide additional shielding coverage for the tool. The clip-on guard assembly can include a guard cover that provides shielding coverage, first and second fasteners disposed on opposite ends of the guard cover, a lever pivotably mounted to the guard cover, and a locking member configured to releasably lock the lever in place when the guard is in use. In operation, the first fastener can be fitted onto one end of the tool guard. Pivoting the lever can move the second fastener into engagement with the opposite end of the tool guard, allowing an operator to securely attach the guard cover to the tool guard, thereby providing modified shielding coverage for the tool. Pivoting the lever in the opposite direction can move the second fastener away, allowing the clip-on guard assembly to be detached from the tool guard.

The utility model belongs to the technical field of grinding and cutting, and particularly relates to a plane grinding and cutting device. The plane grinding and cutting device comprises a grinding and cutting tool head, a fixed protective cover, a movable protective cover and an elastic piece. The grinding and cutting tool head is used for grinding or cutting a workpiece; the fixed protective cover covers the grinding and cutting tool head; the movable protective cover is connected to the fixed protective cover and can move in the axial direction of the fixed protective cover, and a supporting face is formed at the bottom of the movable protective cover and used for making contact with the surface of a workpiece. One end of the elastic piece is connected with the fixed protective cover, the other end of the elastic piece is connected with the movable protective cover, and the elastic piece is configured to be shrunk when the supporting face is close to the grinding and cutting tool head. By means of the plane grinding and cutting device in the technical scheme, it can be guaranteed that the surface of a workpiece is trimmed to be flat and smooth, the situation that a grinding and cutting tool head is stuck is not likely to happen, and therefore the probability of production failures is reduced, and personal injuries caused by improper use of the device are reduced.

The utility model discloses a device for processing a hook spring workpiece, the hook spring is a C-shaped structural member formed by folding a steel belt and stamping, the device comprises a bottom plate, a workpiece positioning seat and a support frame, the workpiece positioning seat and the support frame are arranged on the bottom plate, the workpiece positioning seat is used for accommodating and fixing the hook spring workpiece, and the support frame is used for supporting the hook spring workpiece. The supporting frame is movably connected with the bottom plate through a rotating shaft, an angle grinder is fixedly installed on the supporting frame, the supporting frame is pulled by hand to make the supporting frame move around the shaft relative to the rotating shaft, the angle grinder can be driven to move, the angle grinder gradually gets close to the workpiece positioning base, and then the periphery of a grinding wheel is used for conducting cutting type grinding on the tail end of a hook spring workpiece. The tail end of the hook spring workpiece can be quickly and accurately processed, and the processed end face is very smooth, so that the processing efficiency and the processing precision are greatly improved, and the abrasion to a grinding wheel is reduced.

The invention relates to the technical field of electric tools, and discloses a self-cleaning type single brushless angle grinder for metal cutting, which comprises a main body, the side wall of the main body is rotatably connected with a rotating shaft, and the self-cleaning type single brushless angle grinder further comprises a movement mechanism, and the movement mechanism is arranged in the main body and is used for rotating when the main body moves. When the elastic plates incline, metal chips can be guided to enter the elastic plate of the next stage, the movement process of the previous elastic plate can be repeated after the elastic plates make contact with the chips, and therefore the chips swung when the cutting blade rotates are collected and cleaned; the situation that when a connecting pipe absorbs and cleans metal chippings in the protective sleeve through a dust collector connected with the connecting pipe, the rotating speed of a cutting blade is too high, so that the connecting pipe cannot completely absorb the chippings, and consequently part of the chippings continuously rotate in the protective sleeve is reduced, and the chipping cleaning effect of the device is enhanced; and the internal cleaning quality of the device during operation is improved.

The utility model discloses a handheld belt sander which comprises a holding rod, one end of the holding rod is connected with a power wheel through a power device, the side wall of the holding rod is connected with a horizontally-arranged mounting plate through a spring supporting device, and the upper side of the mounting plate is fixedly connected with a vertically-arranged fixing plate. A vertically-arranged limiting rail is arranged on the side wall of the fixing plate, a lifting rod penetrates through the limiting rail and is connected into the limiting rail in an up-down sliding mode, a threaded rod is connected to the side wall of the lifting rod in a threaded and penetrating mode, and the bottom end of the threaded rod is rotationally connected to the upper side of the mounting plate. According to the device, the power wheel, the guide wheel, the abrasive belt, the extrusion spring, the fixing cylinder, the supporting rod and other components are arranged, the arc-shaped surface of a workpiece can be effectively polished, the abrasive belt can be manually and rapidly switched, and convenience is high.

The invention relates to a grinding and / or polishing pad (48b; 48c) for a grinding and / or polishing machine (12a), with an abrasive interface (80a; 80b; 80c) and with at least one extraction opening (46b; 46c) arranged on a side facing away from the abrasive interface (80a; 80b; 80c). It is proposed that the grinding and / or polishing pad (48b; 48c) has at least one intake opening (78b; 78c) for drawing in ambient air, located on the side facing away from the abrasive interface (80a; 80b; 80c) and in particular on the side surface (110b).

The utility model relates to the technical field of bicycle frame polishing, and discloses a bicycle frame handheld polishing tool convenient to clamp, which comprises a handle, a button is arranged on the outer wall of the handle, a lantern ring is fixedly mounted on one side of the handle, a clamping assembly is arranged at the bottom of the handle, a polishing dust collection assembly is arranged in the lantern ring, and the clamping assembly is fixedly mounted on the other side of the handle. The clamping assembly specifically comprises a base arranged at the bottom of the handle; and the hollow blocks are fixedly mounted on the two sides of the base. The bicycle frame bottom bracket can be fixed through the clamp, the bicycle frame bottom bracket is placed outside the bottom sleeve, the hydraulic rod is started to drive the triangular block to ascend, the idler wheels and the groove rod are pushed to move towards the outer side, the sleeve piece is driven to compress the spring, the groove rod drives the rubber clamping plate to fix the interior of the bicycle frame bottom bracket, and the bicycle frame can be rapidly clamped. The clamp is suitable for five-way joints of frames of different sizes, and therefore the clamping effect is achieved.

Power tool (1), with a motor (5) with a speed of 40,000 revolutions per minute or more, in which The rotational speed of the motor (5) is slowed down by a first-stage deceleration mechanism (37, 45) and a second-stage deceleration mechanism (47, 51) so that rotations of the motor (5) are transmitted to a tip tool (4), a delay ratio of the delay mechanism (37, 45) of the first stage is greater than a delay ratio of the delay mechanism (47, 51) of the second stage, and the rotational speed of the tip tool (4) is within a range of 1,000 revolutions per minute to 15,000 revolutions per minute, the delay mechanism (37, 45) of the first stage comprises a first gear (37) which is provided on a rotating shaft (31) of the motor (5) and a second gear (45) which is provided on an intermediate shaft (41) and engages with the first gear (37), the delay mechanism (47, 51) of the second stage comprises a third gear (47) provided on the intermediate shaft (41) and a fourth gear (51) provided on an output shaft (48) and engaged with the third gear (47), the rotating shaft (31), the intermediate shaft (41) and the output shaft (48) are arranged parallel to each other, and the second gear (45) overlaps with the output shaft (48) when viewed along the axis of the output shaft (48).

The invention provides a reciprocating type electric polishing and grinding device. The reciprocating type electric polishing and grinding device comprises a shell, a motor and a grinding rod. The motor comprises a main body, a quick-release mounting part and a counterweight part; the main body is provided with a first linear output end and a second linear output end, and the vibration directions of the first linear output end and the second linear output end are opposite; the quick-release mounting part is arranged at the first linear output end, and the counterweight part is arranged at the second linear output end; and the polishing rod is detachably connected with the quick-release mounting part. According to the reciprocating type electric polishing and grinding device, the two linear output ends capable of achieving opposite vibration are adopted, the first linear output end drives the grinding rod to achieve grinding, meanwhile, the balancing weight at the second linear output end is used for conducting opposite movement, vibration can be offset and reduced, then vibration transmitted to the shell by the motor is reduced, and the grinding efficiency is improved. As the polishing action is realized by adopting reciprocating vibration, the transmission of any intermediate conversion mechanism is not needed; the waterproof effect is good through the waterproof structure; and different polishing rods can be replaced, so that a better polishing effect is achieved.

The utility model discloses a zirconium dioxide false tooth polishing device, which relates to the technical field of false tooth polishing, and comprises a mounting main body, and further comprises a sealing door which is arranged on the mounting main body and is rotationally connected with the mounting main body; the placing groove is formed in the mounting main body and is fixedly connected with the mounting main body; the dust storage barrel is arranged in the placing groove and is used for collecting dust; the grip is arranged on the mounting main body and is fixedly connected with the mounting main body; the polishing mechanism is arranged on the mounting main body; and the dust collection mechanism is arranged on the mounting main body and the polishing mechanism. According to the device, by arranging the dust collection mechanism, dust generated in the grinding work can be cleaned in time, the cleanliness of the working environment and the safety of workers are guaranteed, meanwhile, dust on false teeth is cleaned in time, and the judgment on the cleaning degree of the surfaces of the false teeth can be more accurate during working.

The utility model discloses an electric tool, its shell at least includes first casing part (100) and second casing part (200), and the holding area of first casing part is equipped with the switch-on switch button (900), and the second casing part is connected with the tool head (400) of electric tool, the second casing part is rotatably connected with first casing part, the electric tool still includes: adjustment locking element (300), it can prevent the second casing part from rotating around the rotation axis center relative to first casing part in locking station, and in the adjustment station, the second casing part can rotate around the rotation axis center relative to first casing part, interlock structure (700), when adjustment locking element is in adjustment station, the switch-on switch button is locked in the position of making the switch-on switch be in the off, when the switch-on switch button is in the position of making the switch-on switch be in the on, adjustment locking element is locked in locking station, wherein, adjustment locking element and switch-on switch button are located on the two faces of holding area perpendicular to each other respectively.

The angle grinder quick-release grinding wheel cover with the self-locking function comprises a head shell and a grinding wheel cover body, a front cover is fixedly connected to the head shell, and the front cover is composed of an upper layer structure and a lower layer structure; wherein the front cover upper layer is provided with a plurality of clamping grooves, the front cover lower layer is provided with an annular limiting groove, the front cover upper layer is further provided with a set of guide grooves communicated with the annular limiting groove, the grinding wheel cover is provided with an opening end used for being connected with the head shell, and the inner wall of the opening end is provided with a set of limiting blocks matched with the guide grooves. The limiting block extends into the annular limiting groove through the guide groove, and the limiting block can move in the annular limiting groove, so that the angle of the grinding wheel cover relative to the head shell is adjusted, and a lock catch piece is arranged at the position, close to the opening end, of the grinding wheel cover. The grinding wheel cover can be subjected to rapid and continuous angle adjustment relative to the head shell, and the design of the lock catch piece and the buckle head of the lock catch piece ensures that the grinding wheel cover can be firmly locked after any angle adjustment.

The utility model discloses a rotary electric tool and a protective cover structure thereof. The protective cover structure comprises a cutting blade, a protective cover and a position adjusting mechanism. The cutting blade has a first axis; the protective cover is provided with a second axis, and the protective cover and the cutting blade are coaxially arranged so that the first axis and the second axis can be located on the same straight line. The position adjusting mechanism enables the protective cover to rotate relative to the second axis and to be locked at a preset position. The protective cover is movably arranged, and the protective cover can rotate and is locked at a preset position. On one hand, mutual interference between the protective cover and a narrow or complex area can be avoided, and therefore the grinding or cutting angle and depth can be flexibly adjusted; and on the other hand, the operator can keep a comfortable holding posture, and hand muscle fatigue and aching pain of the operator caused by holding the angle grinder for a long time are avoided, so that the working efficiency and the operation continuity are guaranteed.

To provide a new art which enables improvement of operability of a portable polisher configured to move orbitally.SOLUTION: A portable polisher includes a polisher body, a battery holster, and a power cord. The polisher body includes: a body housing which houses a motor; and a polishing part configured to be moved orbitally by rotation of the motor. The battery holster includes a battery attachment part to which a battery may be attached. The power cord is configured to supply electric power of the battery attached to the battery attachment part to the polisher body. The power cord connects the polisher body with the battery holster without going through the housing.SELECTED DRAWING: Figure 1

The utility model discloses a shield structure of an angle grinder, and belongs to the technical field of angle grinder protection. The angle grinder shield structure comprises an angle grinder body, an angle grinder head fixedly mounted on the angle grinder body, a grinding disc rotationally mounted on the angle grinder head, a limiting cavity formed in the angle grinder head, and a replacement mechanism arranged in the limiting cavity and used for quickly replacing a first shield; through cooperative use of all the devices and arrangement of a replacement mechanism, when the protection cover needs to be disassembled, only a pressing block needs to be pressed downwards, the pressing block drives a plurality of inclined strips to move downwards synchronously, the inclined strips move downwards, and the inclined planes of the inclined strips are attached to the inclined planes of the insertion blocks, so that the two insertion blocks are extruded outwards, and the protection cover is disassembled. And when the inserting block moves out of the inserting groove, limiting of the inserting column is stopped, at the moment, the mounting cover and the first protective cover can be taken out, the replacement process is simple, consumed time is short, and the maintenance efficiency is improved.

This invention relates to a power tool, comprising a housing and a drive mechanism, a controller, and an operating switch housed within the housing. The operating switch is configured to activate / deactivate the drive mechanism via the controller. The power tool has a disabled state and a non-disabled state. In the disabled state, the drive mechanism is deactivated; in the non-disabled state, the operating switch activates the drive mechanism. The power tool also includes an air supply mechanism mounted on the housing and providing cooling airflow. The air supply mechanism is electrically connected to the controller. When the air supply mechanism is activated, the power tool switches from the disabled state to the non-disabled state. This invention, by providing a dual-function air supply mechanism on the power tool, prevents accidental triggering of the operating switch and effectively dissipates heat from the power tool's heat-generating components. The sensing element of the air supply mechanism acts as a safety lock; the power tool can only be started when the controller determines that the connection pipe has been actively connected by the operator.

An orbital sander may include a housing defining a handle portion and a motor housing portion, a motor within the motor housing and including a motor shaft defining a motor axis, an eccentric drive unit coupled to the motor shaft and configured to convert rotation of the motor shaft to an orbit motion around the motor axis, a battery receptacle on the handle portion that is configured to receive a battery pack for providing electrical current to the motor, a backing pad coupled to the eccentric drive unit for orbital motion about the motor axis, and a dust collection assembly including a dust shroud into which an airflow containing dust created during a sanding operation is induced. The motor housing portion and the dust shroud are in fluid communication with each other.

The invention relates to a grinding and / or polishing pad arrangement, a grinding and / or polishing machine and a method for producing a grinding and / or polishing pad arrangement. A grinding and / or polishing pad arrangement (10a; 10a ') for a grinding and / or polishing machine (12a). 10b) comprises a carrier unit (14a; 14b), according to the invention, the carrier unit (14a; 14b) on the machine side has at least one carrier unit (14a; 16b) to the main normal (14a; 18b) extending transversely to the air passage (18a; 18b, 76b), in particular a suction air channel.

A portable machining apparatus facilitates addition of new electric components with an intended arrangement of various electric components. The portable machining apparatus includes a housing, an electric motor installed in the housing and including a motor shaft extending in an axial direction, a tip tool partially or fully exposed outside the housing and rotatable by the electric motor, a controller installed in the housing and aligned with the electric motor in the axial direction to control an operation of the electric motor, and a first electric component and a second electric component installed in an electric component compartment between the controller and the electric motor. The first electric component and the second electric component are aligned in a same plane perpendicular to an axis of the motor shaft.

Hand-held grinding machine (100) with a vibrating plate (130) to which a grinding plate (140, 150) for receiving a grinding tool (146, 156) can be attached, the grinding plate having a first plate section (140) and a second plate section (150), wherein a first retaining device (240) for releasably attaching the second plate section (150) and a second retaining device (250) for releasably attaching the first plate section (140) are provided on an underside (230) of the vibrating plate (130), wherein at least one of the retaining devices (240, 250) is actuable, wherein the first retaining device (240) has a first elastically deformable retaining element (241) for fixing the second plate section (150) to the vibrating plate (130), characterized in that the second retaining device (250) for holding the first plate section (140) on the The oscillating plate (130) has at least one second elastically deformable retaining element (251),which is designed as a spring clip and on the plate section (140) at least one locking element (141) with a head section is provided, wherein the spring clip (251) is designed to detachably fix the locking element (141) to the swing plate (130) by engaging underneath the head section.

A power tool, in particular an angle grinder, having a drive motor accommodated in a housing which drives a rotor shaft, a tool spindle comprising a tool holder which is preferentially connected to the rotor shaft in a power-transmitting manner by a gearing, as well as a control switch for activating the drive motor, wherein the control switch comprises a first switching element which is pivotably mounted on the housing about a pivot axis between a first switch position for switching on the drive motor and a second switch position for switching off the drive motor, and a second switching element which is rotatable about a rotational axis between a locked position which blocks the first switching element from moving into the first switch position and a release position which enables the first switching element to move into the first switch position.

The utility model belongs to the technical field of angle grinders, and discloses an angle grinder cutting auxiliary tool which is used for assisting an angle grinder to cut a metal plate, the metal plate is arranged on a working table top, the angle grinder cutting auxiliary tool comprises a guide rail, a connecting frame, a rocker arm and an installation piece, the guide rail is connected with the metal plate in a pressing mode and fixedly connected with the working table top, and the connecting frame is arranged on the guide rail in a sliding mode. One end of the rocker arm is rotationally connected with the connecting frame, the mounting part is rotationally arranged at the other end of the rocker arm and deviates from the guide rail, and the angle grinder is connected with the mounting part. According to the cutting auxiliary tool for the angle grinder, the problems that when a metal plate is cut by manually holding the angle grinder, the cut of the metal plate is easy to skew, so that the metal plate is scrapped, and when the angle grinder is held by hand to cut, the danger coefficient is high, and the safety of workers is influenced can be solved.

Reduces the risk of the rotating tip tool coming into contact with an unintended object. [Solution] The disc grinder 1 comprises a grinding disc 2, a motor 8 for rotating the grinding disc 2, a main grip 3 held by the operator's right hand, a sub-grip 4 held by the operator's left hand, a main switch 5 which is pressed when the right hand is gripping the main grip 3, and a sub-switch 6 which is pressed when the left hand is gripping the sub-grip 4. The motor 8 rotates the grinding disc 2 when both the main switch 5 and the sub-switch 6 are pressed.

The utility model discloses an anti-shake rotary handle structure of a handheld electric tool, which comprises a casing, a handle and a locking mechanism, the handle is rotatably connected onto the casing, the locking mechanism is used for locking relative rotation of the handle and the casing, at least one group of tensioning mechanism is arranged between the handle and the casing, and the tensioning mechanism is used for tensioning the handle and the casing. The tensioning mechanism comprises a jacking piece and a first elastic piece acting on the jacking piece and providing elastic supporting force, and the jacking piece and the first elastic piece are supported between the handle and the machine shell so that the rotating connecting position of the handle and the machine shell can be in a tensioned state, so that a shaking gap is eliminated, shaking caused by the handle in the using process of a user is relieved, and the user experience is improved. The use safety and the user experience of the machine are improved, and the situation that a user abandons the machine due to insecurity caused by shaking of the handle is avoided.

An integrally formed tool arm for a power cutter, the tool arm comprising a first aperture (310) for receiving a motor axle, a second aperture (320) for receiving a tool axle of a rotatable work tool, wherein the first aperture (310) and the second aperture (320) are intersected by and orthogonal to a longitudinal extension axis of the tool arm, the tool arm further comprising first rail cutting accessory attachment means (330) arranged to receive a rail cutting accessory, wherein the first rail cutting accessory attachment means (330) is arranged offset from the longitudinal extension axis of the power cutter arm.

The utility model provides a mobile phone piece edge grinding device, and relates to the technical field of mobile phone piece edge grinding treatment.The mobile phone piece edge grinding device comprises two supporting bases, limiting grooves are formed in the tops of the two supporting bases, a handheld grinder body is placed between the two limiting grooves, and the supporting bases and the limiting grooves are matched for supporting and limiting the handheld grinder body; and the handheld polisher main body is connected with a polishing head. According to the handheld polisher, the supporting base and the limiting groove are arranged, the supporting base and the limiting groove are matched with each other, the handheld polisher body can be supported and limited, the situation that the handheld polisher body rolls and falls off is effectively reduced, and the handheld polisher body can be stably placed on the supporting face when not used.