71 results about "Tipped tool" patented technology

The invention relates to an impact tool and an impact wrench. In a corner impact tool, a working part can be properly illuminated by a lamp. This impact tool is provided with: a grip section extending in the front-rear direction; a motor housing part disposed in front of the grip part; a motor disposed inside the motor housing part; a main shaft disposed in front of the motor, extending in a direction intersecting the front-rear direction, and rotated by the motor; a hammer which is rotated by the main shaft; an anvil which is hit by the hammer in the rotational direction; a tip tool holding part disposed at the lower end of the anvil; a hammer housing that accommodates the main shaft and the hammer; and a light emitting body held in the hammer case.

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).

This provides a tip tool that can be attached to the spindle without any wobbling and can be manufactured inexpensively. [Solution] A tip tool 10 that can be interchangeably attached to the spindle portion 92 of an electric power tool 90, wherein the spindle portion 92 is provided with an annular portion 95 in which a plurality of recesses 97 are continuously and evenly formed around the entire circumference of its inner surface, and the tip tool 10 has a flat plate-shaped engaging portion 20 that engages with the inside of the annular portion 95, a tip portion 30, and a connecting portion 40 that connects the engaging portion 20 and the tip portion 30, wherein the engaging portion 20 has a polygonal shape with a plurality of corners and has a mounting hole portion 21 into which a mounting fastener 96 that is attached to the spindle portion 92 is inserted, and at least two of the plurality of corners, locking corners 22, 23 are locked and engaged with the recesses 97.

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.

The present invention improves the efficiency of tip tool replacement. A multitool 10 has a blade holding part 70 that is provided at a lower end part of an output shaft 30, and the blade holding part 70 forms a recess that opens downward. The blade holding part 70 has: a bottom part (an outer plate part 73 and an inner plate part 76) that is opposite a fitting part 12D of a blade 12 in the vertical direction; and a fitting cylinder 74 that surrounds the fitting part 12D from the outside in the radial direction of the output shaft 30. The blade holding part 70 has a magnet 90. The magnet 90 is exposed downward from the bottom part of the blade holding part 70, and the fitting part 12D of the blade 12 is attracted upward by the magnetic force of the magnet 90. Thus, the blade 12 can be temporarily held by the magnet 90 when the blade 12 is replaced. As a result, it is not necessary for the blade 12 to be supported while a clamp lever 52 is operated when the blade 12 is replaced.

To achieve downsizing of a gear part in an angle impact tool.SOLUTION: An impact tool includes: a grip part extending in a front-rear direction; a motor housing part located forward of the grip part; a motor located inside the motor housing part and including a stator and a rotor rotatable with respect to the stator; a bevel gear configured to rotate integrally with the rotor and including an axis extending in the front-rear direction; a spindle which is directly or indirectly rotated via the bevel gear and extends in a direction intersecting the front-rear direction; a hammer which is rotated by the spindle; an anvil which is struck directly or indirectly in a rotation direction by the hammer; a tip tool holding part disposed at a lower end of the anvil; a hammer case which houses the bevel gear, the spindle, and the hammer; and a bearing held by the hammer case and rotatably holding the bevel gear.SELECTED DRAWING: Figure 6

A portable machining apparatus includes a housing extending in a vertical direction, the housing including, on an upper surface, a battery mount to which a battery is detachably attached in a first direction perpendicular to the vertical direction, an electric motor installed in the housing and including a motor shaft extending in the vertical direction, a tip tool protruding downward from the housing and being rotatable by the electric motor, a controller installed in the housing above the electric motor along the vertical direction, and a first electric component and a second electric component installed in an electric component compartment between the controller and the electric motor along the vertical direction. The first electric component and the second electric component are aligned along a second direction perpendicular to the vertical direction and the first direction.

A router includes an illumination part having an LED, and the illumination part is accommodated in an illumination accommodation portion of a holding ring and held by the holding ring. Here, a restriction portion of the holding ring is arranged adjacent to a lower side of a positioning rib of a stator and restricts downward movement of the stator. Thus, the illumination part can be held using the holding ring that restricts the downward movement of the stator. Accordingly, the illumination part can be mounted in the router using a member that holds the illumination part and a member that restricts the downward movement of the stator as a common member. In this manner, the periphery of a tip tool can be illuminated by the illumination part, while preventing an increase in the number of components.

The invention provides an impact tool. The impact tool has a tool holder, a motor, a drive mechanism, a tool body, a handle, and an operating member. The tool holder extends along a drive axis. The drive mechanism drives the tip tool in a straight line along a drive axis in response to the drive of the motor. The tool body accommodates the tool holder, the motor, and the drive mechanism. The handle is connected to the tool body and includes a gripping portion extending in a first direction intersecting the drive axis. The operating member is provided on a front surface side of the grip portion and is manually operated by a user to instruct activation of the motor. The grip portion has a first end portion approaching the tool body and a second end portion away from the tool body in a first direction intersecting the drive axis. The operation member is disposed so as to include at least a central position of the grip portion that is substantially equidistant from the first end portion and the second end portion in the first direction. Accordingly, the impact tool can exhibit excellent operability in various postures.

To provide an impact tool capable of reducing the load transmitted to a user holding the tool body. [Solution] The impact tool 1 comprises a tool body 10, a tip tool 20 attached to the tip of the tool body 10 and moving back and forth to repeatedly come into contact with the workpiece W and apply an impact force, and a cylindrical support portion 30 protruding forward from the tool body 10. The tool body 10 is pressed against the workpiece W via the support portion 30, and when the tool body 10 is driven in this state and the tip tool 20 moves back and forth, the tip of the tip tool 20 moves back and forth between a position where it protrudes relative to the support tip portion 31 of the support portion 30 and a retracted position, making it possible to repeatedly apply an impact force to the workpiece W.

To improve convenience of a working machine.SOLUTION: The impact tool includes an electric motor, a striker 60 reciprocated in a front-rear direction by a driving force of the electric motor, a hammer member 65 reciprocated between an impactable position where striking force is transmitted to a tip tool by being struck by the striker 60 on the front side in the front-rear direction and a non-impactable position where striking is not performed by being positioned on the front side of the striker 60 in the front-rear direction, and a hammer guide 66 with which the striker 60 abuts when the hammer member 65 is in the non-impactable position.SELECTED DRAWING: Figure 5

The present application provides a work machine capable of suppressing temperature rise of a motor. An arithmetic unit 95 continuously performs electronic pulse control even in a no-load state in which no load is applied to a tip tool holding portion, and if the average of the motor current detection value in the forward rotation drive of the motor 3 becomes equal to or greater than a threshold value (if the load applied to the tip tool holding portion increases), the maximum duty ratio when the motor 3 is rotated forward and the rate of increase of the duty ratio are set (updated) to values higher than initial values, so as to set the number of rotations of the motor 3 to be high, or the period of the electronic pulse control is set (updated) to a value smaller than an initial value.

To provide an attachment for power tools that allows for stable operation of power tools. [Solution] An attachment for an electric tool used in an electric tool that processes a workpiece by oscillating the tip tool around a drive axis comprises a mounting member, a restricting member, and a connecting member. The mounting member is detachably attached to the electric tool. The restricting member contacts an object and restricts the relative movement of the electric tool with respect to the object. The connecting member connects the restricting member and the mounting member. The restricting member includes (i) a shaft portion and (ii) a stopper portion connected to the tip of the shaft portion and having a restricting surface perpendicular to the long axis of the shaft portion. The connecting member is configured to connect the restricting member and the mounting member such that the electric tool attachment is in a first state in which the long axis of the shaft portion is parallel to the drive axis of the tip tool when the mounting member is attached to the electric tool.

A screwdriver allows a screwing operation and an unscrewing operation to be performed smoothly. A screwdriver includes a housing, a motor including a stator and a rotor, a spindle, a clutch assembly, and a spindle locking assembly. The spindle includes a rod to which a tip tool is attachable, and is supported by the housing in a manner movable between an advanced position and a retracted position in a front-rear direction. The spindle has a reception hole extending frontward from a rear end face of the spindle. The clutch assembly transmits a rotational force from the rotor to the spindle in response to the spindle moving to the retracted position during forward rotation of the rotor. The spindle locking assembly transmits a rotational force from the rotor to the spindle during reverse rotation of the rotor, and includes the reception hole, and a countershaft placed in the reception hole.

The present invention provides an impact tool which drives a tip tool linearly along a driving axis, the impact tool having a tool body which defines the driving axis, a motor housed in the tool body, an elongated handle cantileveredly connected to the tool body and extending in a direction intersecting the driving axis, and at least one force applying member interposed between the tool body and the handle. The motor has a motor shaft rotatable about an axis parallel to the driving axis. The handle includes a first end portion rotatably connected to the tool body about a rotational axis relative to the tool body, and a grip portion configured to be positioned between the first end portion and a free end of the handle for a user to grip. The at least one force applying member applies a force to the tool body and the handle to rotate the same away from the tool body toward the grip portion. Accordingly, it is possible to reduce vibrations transmitted to the grip portion in the impact tool.

To provide a striking tool that offers excellent operability in various positions. [Solution] The striking tool comprises a tool holder, a motor, a drive mechanism, a tool body, a handle, and an operating member. The tool holder extends along the drive shaft. The drive mechanism drives the tip tool linearly along the drive shaft in response to the motor's drive. The tool body houses the tool holder, motor, and drive mechanism. The handle is connected to the tool body and includes a gripping portion extending in a first direction intersecting the drive shaft. The operating member is located on the front side of the gripping portion and is manually operated by the user to signal the motor to start. The gripping portion has a first end closer to the tool body and a second end further away from the tool body in the first direction intersecting the drive shaft. The operating member is positioned to include at least a central position of the gripping portion that is substantially equidistant from the first end and the second end, respectively, in the first direction.

This invention provides a power tool. The vibratory tool has an inner housing (3), a spindle (5), a clamping shaft (61), a clamping spring (65), a clamping member (71), a collar (75), an operating handle (77), and a pressure sleeve (671). The collar (75) holds the clamping member (71) so that it can move relative to it in a vertical direction between a locked position and an unlocked position. The locked position is when the clamping member is engaged with the clamping shaft (61) in a state where it cannot move radially, and the unlocked position is when the clamping member can move radially. The operating handle (77) moves the clamping member (71) downward relative to the collar (75) and the spindle (5) in response to a predetermined release operation. The clamping member (71) moves from the locked position to the unlocked position relative to the collar (75) in response to the release operation. During the downward movement, the clamping member (71) presses down on the tip tool (91) via the pressure sleeve (671). Accordingly, the tip tool can be easily removed.

The invention relates to the technical field of machining, in particular to a ceramic matrix composite deep small hole micro electric discharge machining method, device and system.The ceramic matrix composite deep small hole micro electric discharge machining method comprises the steps that the micro electric discharge machining requirement of a current workpiece is obtained; determining machining parameters of the micro electric spark drilling device; the ultrasonic vibration platform is controlled to apply multi-dimensional high-frequency micro-amplitude ultrasonic vibration to the current workpiece; a conical tip tool is used for preprocessing the current workpiece; and at the current hole position subjected to pretreatment, the multi-spindle electric spark machining unit is controlled to conduct electric discharge hole machining on the current hole position of the current workpiece to which ultrasonic vibration is applied under cooperative positioning of a mechanical arm. According to the scheme, the specific vibration track is applied to the workpiece through the ultrasonic vibration platform, the machining parameters and the vibration parameters are regulated and controlled, ultrasonic vibration assisted electric spark machining of the target workpiece is achieved, the chip removal speed is increased when the workpiece is machined, and the machining capacity is improved.

The electric power tool of the present application has a motor, an eccentric shaft, a motion conversion mechanism, and a balancer, wherein the motor has a rotating shaft; the eccentric shaft extends from one end of the rotating shaft and rotates around a center axis of rotation at a position radially offset from the center axis of rotation; the motion conversion mechanism converts one cycle of rotational motion of the eccentric shaft into oscillating motion that reciprocates the tip tool once; and the balancer rotates together with the rotating shaft. When viewed along the center axis of rotation, the center of gravity of the balancer is located on the opposite side of the center axis of the eccentric shaft, i.e., the eccentric axis, from an imaginary vertical line that intersects perpendicularly with a first imaginary straight line passing through the eccentric axis and the center axis of rotation and that passes through the center axis of rotation, and a second imaginary straight line passing through the center axis of rotation and the center of gravity of the balancer is inclined at an inclination angle greater than 0° and less than 90° in the direction opposite to the direction of rotation of the rotating shaft. Accordingly, vibration of the electric power tool can be suppressed.

To provide a chuck mechanism of a power tool capable of easily attaching and detaching a tip tool.SOLUTION: The chucking mechanism 20 is mounted on a chucking shaft 21 having an insertion hole 21a into which the end bit can be inserted so as to reciprocate along the outer peripheral surface of the chucking shaft. And a sleeve locking means 25 for fixing the sleeve at a predetermined position when the sleeve is retracted against the urging of the spring, wherein when the tip tool is inserted into the chuck shaft with the sleeve fixed by the sleeve locking means, the tip tool abuts on the sleeve locking means and moves the sleeve locking means to release the fixation of the sleeve, and the sleeve advances by the urging of the spring. And a tool lock means 23 for fixing the tip tool to the chuck shaft in the advanced state of the sleeve.SELECTED DRAWING: Figure 2

The present application provides a kind of impact tool.Hammer drill (1) includes tool holder (10), two balls (35,35) being arranged in the receiving hole (45,45) of tool holder, the guide washer (33) of the front side of ball to the receiving hole by helical spring (34) force, press ring (32) is arranged adjacent to the front side of guide washer and the operation sleeve (31) of the front and back movement of press ring between the locking position and the locking release position of two balls.In the front surface of guide washer, protruding portion (42) is provided to the side of press ring, by protruding portion (42), in the locking position of press ring guide washer becomes the inclined attitude from the axis (A) of tool holder, so that one ball (35) can be more rearward than the other ball (35) moves.Accordingly, by making two balls reliably retreat, tip tool can be smoothly inserted into tool holder.

The invention provides an electric tool, which can realize miniaturization of a gear part in a bent electric tool. The electric tool includes: a grip portion extending in a front-rear direction; a motor housing part disposed in front of the grip part; a motor disposed inside the motor housing part and having a stator and a rotor capable of rotating relative to the stator; a bevel gear that rotates integrally with the rotor and has a shaft extending in the front-rear direction; a main shaft that rotates directly or indirectly by means of a bevel gear and extends in a direction intersecting the front-rear direction; a tip tool holding part that is rotated by the main shaft; a housing that accommodates the bevel gear and the main shaft; and a bearing that is held by the housing and that rotatably holds the bevel gear.

An electric tool system includes an electric tool section, a measuring unit, a storage unit, and a decision unit. The measuring unit measures a physical quantity concerning the electric tool section. The storage unit stores the physical quantity measured by the measuring unit. The decision unit determines, based on the physical quantity stored in the storage unit, whether the tip tool needs replacement or not and thereby obtains replacement information representing a decision result indicating whether the tip tool needs replacement or not.

A rotary impact tool is provided. The rotary impact tool is configured to perform an impact operation and a rotation operation, wherein the impact operation is an operation of driving a tip tool in a direction of a driving axis, and the rotation operation is an operation of rotating the tip tool about the driving axis. The rotary impact tool has a tool holder that houses the tip tool in a detachable manner. The tool holder has a rotation transmission portion configured to transmit a rotation power to the tip tool. A coating film formed of a carbide of an element of Group 5 of the periodic table is formed on the rotation transmission portion. Accordingly, durability of the rotary impact tool that is capable of transmitting the rotation power to the tip tool can be improved.

To provide a chuck mechanism for an electric power tool that is able to easily attach and detach a tip tool.SOLUTION: A chuck mechanism for an electric power tool includes: a chuck shaft 21 having an insertion hole through which a driver bit 2 can be inserted; a sleeve 22 that is mounted so as to be able to reciprocate along an outer peripheral surface of the chuck shaft 21 and is constantly biased forward by a spring 3; an opening / closing claw 25 that fixes the sleeve at a predetermined position when the sleeve is retracted against the bias of the spring; and tool locking means that, when the driver bit 2 is inserted into the chuck shaft while the sleeve is kept fixed by the opening / closing claw, the driver bit operates the opening / closing claw to release the fixation of the sleeve so that the sleeve is moved forward by the bias of the spring, and the driver bit is fixed to the chuck shaft while the sleeve is kept moved forward.SELECTED DRAWING: Figure 2

This product is a tip tool for rotary buried piles that is attached to the tip of rotary buried piles used as foundations for buildings, etc. When in use, as shown in the "Reference Diagram Showing the State of Use," the product is fixed to a connecting member such as a steel pipe pile and used when burying the rotary buried pile. In addition, by positioning the bottom of the digging blade higher than the bottom of the blades when viewed from the front, this product does not unnecessarily destroy the soil at the bottom of the pile hole during construction, and can obtain sufficient tip bearing capacity after construction.

According to one embodiment, a grinding apparatus includes a rotary table, a grinder, a holder, a horizontal slider, and a controller. The rotary table is rotatable and can hold a workpiece. The grinding machine is provided with a rotating part, and the surface of the processed object held on the rotating workbench is ground through the rotation of the rotating part. The holding unit holds the grinder such that the rotation axis of the rotation unit is at an angle of more than 0 DEG and 60 DEG or less with respect to the vertical axis. The horizontal movement slider slides the holding portion in the horizontal direction in a state where the tip tool of the rotating portion is in contact with the workpiece. The control unit controls the rotation of the rotating table and the rotating unit, and controls the grinder to linearly slide between the center side and the outer peripheral side of the workpiece.