Abstract: An electrostatic substrate holder for accommodating and holding a substrate, a method for processing a substrate, and a processing plant. The electrostatic substrate holder includes a stator having electrodes that generate an electrostatic holding force for fixing the substrate.

Abstract: A torque screwdriver device is provided, including: a housing, including a barrel and a cover coveringly connected with the barrel; an input shaft portion, rotatably assembled with the barrel; an output shaft portion, rotatably assembled with the barrel and including a socket mechanism; a torque clutch mechanism, including a first engaging portion disposed on the input shaft portion and a second engaging portion disposed on the output shaft portion, an elastic preload member biasing one of the first and second engaging portions, and a first bearing mechanism, the first bearing mechanism including a stop member abutted against the housing, a support member and at least one low friction member disposed between the stop member and the support member, at least one of the stop member and the support member being movable relative to the at least one low friction member.

Abstract: A support base supports a plate-shaped workpiece. The support base includes a flat plate-shaped box member having a support face for supporting a workpiece and a placement face that is a face on the opposite side to the support face and is placed on a holding face of a chuck table, a temperature measurement unit accommodated in the box member, and a battery accommodated in the box member and serving as a power supply for the temperature measurement unit. The temperature measurement unit includes a temperature measuring instrument that measures a temperature at the support face, and a recording unit that records the temperature measured by the temperature measuring instrument.

Abstract: An apparatus includes a frame, a separating plate connected to the frame, a sensor aimed at the separating plate, and a support surface connected to the frame. The separating plate and the support surface are coupled with the frame so as to allow for a relative movement between the separating plate and the support surface in a first direction. The separating plate and the support surface are arranged such that when a grinding disc rests against the support surface and when the separating plate and the grinding disc move towards each other, at least one first edge of the separating plate is pushed over grinding disc. The sensor is arranged such that when the separating plate is pushed over the grinding disc, the grinding disc is between the sensor and the separating plate.

Abstract: A substrate polishing apparatus includes a top ring for pressing a substrate against a polishing pad to perform substrate polishing; a spectrum generating unit that directs light onto a surface of the substrate of interest for polishing, receives reflected light, and calculates a reflectivity spectrum corresponding to the wavelength of the reflected light; and a storage that stores a plurality of thickness estimating algorithms for estimating the thickness of the polished surface in accordance with the reflectivity spectrum. A plurality of thickness estimating algorithms is selected among the thickness estimating algorithms stored in the storage, and a switching condition is set. The thickness of the polished surface is estimated by using the set thickness estimating algorithms, and if the switching condition is satisfied, the thickness estimating algorithm to be applied is switched.

Abstract: An oral care implement having an arrangement of tooth cleaning elements thereon. The oral care implement may include a head extending along a longitudinal axis from a proximal end to a distal end. A plurality of tooth cleaning elements extend from the head and are arranged in groups including a first group of tooth cleaning elements that terminate in distal ends that form a concave cleaning surface and a second group of tooth cleaning elements that terminate in distal ends that form a convex cleaning surface. Furthermore, there may also be a third group of tooth cleaning elements extending transversely across the head and dividing the first group of tooth cleaning elements into first and second subgroups of tooth cleaning elements. The third group of tooth cleaning elements may be inclined relative to a surface of the head from which they extend.

Abstract: The present invention relates to a device (14) for sanding floor areas, the device comprising a frame, a steering, a motor which is provided to said frame, a subframe (13) rotatably coupled with said motor, said subframe being centrally provided with an adapter (7) along the lower side, a sanding frame (1), said sanding frame being centrally provided with a receiver (2) along the upper side, said receiver receiving said adapter, and at least one holder (5) for sanding elements, said holder being provided along the lower side of said sanding frame and being suitable for the attachment of sanding elements (15). In particular, the subframe is freely supported by the sanding frame, via said adapter and receiver, said adapter and receiver being rotationally coupled. In other aspects, the invention relates to a sanding frame, a sanding element and a method for sanding floor areas, as well as a floor area obtained by application of said method.

Abstract: A handy-stick type vacuum cleaner is disclosed. The disclosed vacuum cleaner can comprise: a first part including a dust collection unit; a second part including a suction motor and a handle; a third part for connecting the first and second parts such that the first and second parts rotate with each other; and a mode setting unit disposed inside the second part so as to selectively lock and unlock the third part, thereby setting a rotating mode enabling the first and second parts to rotate with each other and a fixing mode disabling the rotation thereof.

Abstract: A cutting apparatus includes: a processing feeding unit that performs processing feeding of a chuck table adapted to hold a workpiece; and two cutting units in which rotational axes of two spindles coincide with each other and cutting blades mounted to the spindles face each other. Each cutting unit includes a flange mechanism in which the cutting blade having a cutting edge fixed to an outer peripheral edge of a one-side outer surface of a circular disk-shaped base is fixed to the spindle. The flange mechanism is fixed to a tip of the spindle, sucks an other-side outer surface of the base of the cutting blade, and fixes the cutting blade to the spindle with the one-side outer surface of the base exposed to the side of the tip of the spindle, and the one-side outer surfaces of the cutting blades fixed to the two cutting units.

Abstract: A dust boot tool includes a shell, a piston, a valve and stretchable rods. The shell includes a chamber in communication with an inlet channel. Pressurized air enters the chamber via the inlet channel. The piston is movable in the chamber by the pressurized air, and includes a first section, a second section opposite to the first section, a vent in the first section in the vicinity of the inlet channel, and a conical internal face extending on the second section. The valve includes a portion movably inserted in the vent. Each of the stretchable rods includes a stretchable end for contact with a dust boot, an abutment end in contact with the conical internal face of the second section of the piston, and a pivotal portion formed between the stretchable end and the abutment end and pivotally connected to the shell.

Abstract: An impact hand tool which includes an outer sleeve; an impact rod inserted to connect to the outer sleeve; a cushion pad provided inside the outer sleeve at the vertical center axis; a handle connected to the impact rod; an inner hole slot at a second end of the outer sleeve with an inner wall and an internal thread; and a tool head installed to the outer sleeve through the inner hole slot. The tool head comprises a one-piece structure of a working rod portion and a working head, a connecting rod having an external thread for coupling with the inner hole slot, a connecting sleeve connected to the connecting rod to form an integral and stepped hollow body defining a connecting cavity to receive the working rod portion, and a rubber filler to fill a gap between the working rod portion and the inner wall of the connecting rod.

Abstract: A wheel rotating transfer device includes a frame, a lifting cylinder, a flange, guide shafts, linear bearings, a bearing sleeve, a pressure bearing, a spacer ring, a radial bearing, a gear shaft, a bearing end cover, a lifting rack, a first linear guide rail, a precision stroke cylinder, a first guide rail sliding seat, a rack, a carrier, arms, brackets, a plurality of second guide rail sliding seats, a plurality of second linear guide rails, bearing blocks, screw nuts, a bidirectional screw, and a clamping cylinder. The wheel rotating transfer device can meet the requirements of rotating feed of wheels, has the characteristics of simple structure, convenient manufacture, stable performance, high positioning precision and the like, and is particularly suitable for automatic batch production.

Abstract: The present disclosure discloses a wheel burr removing device, consisting of a left brush system, a synchronous clamping drive system, a right brush system and the like. The wheel burr removing device can be used for removing burrs from a wheel center hole, the circumferential edge below the center hole, a bolt hole and a back cavity weight reduction pit, and at the same time, has the characteristics of high automation, high removal efficiency, advanced technology, strong universality and high safety and stability.

Abstract: A device for attaching abrasive drive plates to the motor driver, rotatable arms of a floor finishing machine so that it can be used to grind and polish hardened concrete has a polygonal shaped driver member to which is affixed at least one abrasive drive plate using spherical bearings on its or their drive shafts so that it is or they are free to both spin and to tilt relative to a vertical axis. A locking cap containing a radial bearing may be affixed to housings for the radial bearings for constraining the drive plate shafts solely to pure rotation about the vertical axis. A plurality of channel members is affixed to an upper surface of the polygonal shaped driver for coupling it to the arms of the floor finishing machine.

Abstract: A device for removing circumferential burrs of a wheel with high precision includes an electric cylinder, a lifting table, guide rails, an electric cylinder, a sliding block, a plurality of sensors, a rim burr cutter, a riser burr cutter, and the like. The device can simultaneously remove circumferential burrs from the flange edge, the outer rim and the riser slot edge, which eliminates the error caused by coaxial degree deviation, so that the rotating center of the cutters coincides with the circumferential center of the burrs. The device is configured to provide high-precision removal of burrs from the flange edge, and high-precision removal of burrs from the outer rim and the riser.

Abstract: A workpiece grinding method including a first surface protection step of covering a front surface of a workpiece with a workpiece protective member, a second surface protection step of covering front surface of a support substrate with a support substrate protective member, a workpiece unit formation step of causing an adhesive to spread over a side surface of an outer peripheral portion of the workpiece to fix the side surface to the support substrate, and forming a workpiece unit, a grinding step of thinning the workpiece, a first peeling step of peeling off the workpiece after thinning, the workpiece protective member, the adhesive, and the support substrate protective member from the support substrate as one unit in such a manner to turn them over, and a second peeling step of peeling off the workpiece protective member, the adhesive, and the support substrate protective member as one unit from the workpiece.

Abstract: A wheel grinding device consists of a lower lifting rotary system, spoke grinding units, a center hole grinding system and an upper lifting and clamping rotary system. The wheel grinding device not only can be used for grinding the center hole of a wheel of any size via brush units of the center hole grinding system, but also can be used for grinding the back of wheel spokes of different sizes and shapes via the actions of brush belts of the spoke grinding units.