41results about "Support wheels" patented technology

An abrasive article includes a backing, abrasive particles secured to the backing, and a size coat provided over the abrasive particles, the size coat comprises a binder resin, at least one filler material and at least one lubricant material having a melting temperature of at least about 200 degrees F. A method of grinding aluminum using such an abrasive article is also described.

The invention relates to a grinding disc (40) for a grinding machine (15), with a drive bracket (49) arranged on its machine side (41) for rotationally fixed attachment to an output (26) of the grinding machine (15), so that the grinding disc (40) can be driven by the grinding machine into a grinding motion suitable for grinding a workpiece (W), in particular a rotary and / or eccentric motion, wherein the grinding disc has a machining side (42) opposite the machine side (41) with a machining surface (45) on which an abrasive (90) for abrasive machining of a workpiece (W) can be fixedly or detachably arranged by means of an adhesive layer (66), wherein inlet openings (48) for the inflow of dust-laden air (S) are arranged on the machining surface (45) and outlet openings (43) connected to these via through channels (59) are arranged on the machine side (41).wherein the outlet openings (43) are arranged in an extraction zone (44) within an annular sealing element (80) arranged on the machine side (41) for sealing against a counter-seal element (36) of the grinding machine, wherein the grinding disc has a plate body (50) which has a support wall (54) provided for carrying the grinding medium (90), which is stiffened by a rib structure (55) whose ribs (56) project in front of the support wall (54) towards the machine side (41), wherein the ribs (56) define cavities (57) towards the machining side (42) which are closed by the support wall (54) and open towards the machine side (41). The invention further relates to a grinding machine which has such a grinding disc. It is provided that the sealing element (80) covers at least a part of the cavities (57) towards the machine side (41).

A buffing pad assembly having a buffing pad, an attachment means, and an insert (e.g., plastic ring) is provided. In one embodiment, a channel is cut into a side of the buffing pad, creating first and second side portions. The attachment means is then affixed (glued) to a back surface of the buffing pad and the insert is centered on an upper surface of the attachment means. The insert is then heated, affixing it to the upper surface of the attachment means. The insert is then deformed (while it is still pliable) into an L-shape, forming a cavity on the backside of the buffing pad assembly. And because the insert is affixed to the attachment means, and the attachment means is affixed to the buffing pad, deforming the insert results in deforming the back surface of the buffing pad, while maintaining a flat front surface.

The invention relates to the technical field of polishing jigs, in particular to an embedded type cavity polishing jig and a manufacturing method. In the industry, CNC carving is adopted for producing a polishing jig, burrs and knife patterns are prone to being generated and need to be removed through manual grinding, and the machining efficiency is low; a fiber rubber plate is generally adopted as a polishing jig, the rigidity is too high, the flexibility is insufficient, and when brittle materials are polished, the defects of edge breakage, scratches, edge raised grains and the like are prone to occurring. According to the embedded type cavity polishing jig and the manufacturing method, the jig base plate is manufactured through the punch forming process, burrs and knife lines are avoided, manual grinding is not needed, and the machining efficiency is improved. The jig base plate is provided with the cavity, the flexible inlay strip is tightly attached to the inner wall of the cavity, and the flexible inlay strip can absorb collision energy during polishing, so that the defects of edge breakage, scratching, edge raised grains and the like of the polishing piece made of the fragile material are reduced, and the yield of the polishing piece is increased.

To provide a grinding disk that is configured to be detachably attached to an electric grinder for a table, which is frequently used for various types of work such as woodworking, and is excellent in adhesion efficiency and use efficiency.SOLUTION: The grinding disk comprises: a plate part made of a circular metal plate; a sanding part on which a grinding member is formed such that a grinding surface is formed on one side of the plate part; and a fastening part provided in a form of a through hole at a central axis of the plate part to be easily fastened to the electric grinder. The plate part has a gradual curvature K such that a convex surface is formed on the sanding part side where the grinding surface is formed. The grinding disk elastically adheres to the electric grinder when fastened thereto.SELECTED DRAWING: Figure 2

A plate-like backing pad (20) for releasable attachment to a hand-held polishing / sanding power tool (2) includes a center axis (34), a top surface (50) having a resilient plastic damping layer (52) attached thereto, an even bottom layer (22) attached to a bottom surface (56) of the damping layer (52) and adapted for releasable attachment of a polishing / sanding member (24), and an attachment member (38) adapted on the top surface for releasable attachment to a corresponding attachment element (32) of the power tool (2). The top surface has a central region (58) extending around the center axis and an external region (60) surrounding the central region recessed with respect to the external region. The attachment member adapted in the recessed central region with the center axis extending through the attachment member and part of the central region surrounding the attachment member.

In an embodiment where a grinding sheet is attached to a hand grinder for use, the heat generated during grinding is appropriately removed. [Solution] The disc-shaped intermediate pad has a first surface equipped with a first hook fastener for connecting to the back surface of the abrasive sheet, and a second surface on the opposite side of the first surface equipped with a second hook fastener for connecting to a disc holder attached to the rotating shaft of a hand grinder. A central through-hole is provided in the region including the center of the intermediate pad, penetrating from the first surface to the second surface, with the radius of the central hole being 16% or more and 80% or less of the radius of the intermediate pad. Multiple outer peripheral through-holes are provided on the outer periphery of the intermediate pad, penetrating from the first surface to the second surface, and when the outer circumference is defined as the region between the outer circumference corresponding to the outer edge of the intermediate pad and the inner circumference 32% inward from the outer circumference, the area ratio of the through-holes to the outer peripheral region is 15% or more and 50% or less.

In one embodiment, a machine tool system comprises a hand-held power tool and a base plate assembly configured for mounting on the hand-held power tool. The base plate assembly includes a locking element configured to rotate about a first axis. The locking element is configured to rotate about the first axis between a first position, in which a top clamp cannot be locked to the base plate assembly, and a second position, in which the top clamp can be locked to the base plate assembly. The locking element is configured to bend a section of the top clamp away from the first axis as the locking element rotates from the first position to the second position during a mounting process, thereby locking the top clamp to the base plate assembly.

A disc changing system for a robotic defect repair system is presented. The system has a first abrasive disc and a second abrasive disc. The first and second abrasive discs are coupled to a liner. The system includes an abrasive disc placement device configured to automatically: remove the first abrasive disc from the liner, transport the first abrasive disc to a robotic tool of the robotic defect repair system, and place the first abrasive disc on a backup pad coupled to the robotic tool. The system also includes an abrasive disc remover configured to automatically remove the first abrasive disc after receiving a removal signal. The system also includes a controller configured to send an instruction to the disc placement device to remove, transport and place the first abrasive disc, instruct the robotic tool to conduct an abrasive operation. The controller is also configured to send the removal signal. The controller is a processor and the instructions are stored on a non-transitory computer-readable medium and executed by the processor.

The invention relates to the technical field of semiconductor probe cleaning abrasive paper, in particular to gradient elastomer abrasive paper for cleaning a semiconductor probe and a preparation method of the gradient elastomer abrasive paper. According to the technical scheme, the abrasive paper comprises a base, an abrasive paper body, a supporting plate, a mounting frame and a placement box, the supporting plate is arranged above the base, a supporting pipe is rotatably mounted in the supporting plate, the placement box is arranged at the upper end of the supporting pipe, and the abrasive paper body is arranged above the placement box; the abrasive paper body sequentially comprises a working face, a middle transition layer, a buffering supporting layer and a flexible base material from bottom to top. According to the invention, on the basis of the rule of'negative correlation between coating thickness and roughness', through a multi-stage differential thickness coating process and in combination with an equipment structure of negative pressure adsorption and pressure ring dual fixation, on the premise of not changing a core formula, independent and accurate regulation and control of surface roughness, decoupling of cleaning power and probe protection functions are realized, chip accommodating and heat dissipation performances are improved, and the service life of the chip is prolonged. And the cleaning requirements of advanced-process semiconductor probes are met.

A method for repositioning an abrasive disc within a repositionable abrasive disc mounting assembly is presented. The method includes mounting the abrasive disc to a repositionable abrasive disc mounting assembly in a first position. The mounting disc assembly includes the abrasive disc coupled to the back-up pad assembly such that the abrasive disc is in contact with a pressure feature of the back-up pad assembly, a drive shaft of a grinding tool, and a fastener that maintains the position of the abrasive disc and the back-up pad coupled to the drive shaft. The method also includes conducting an abrasive operation by activating the grinding tool. The method also includes re-positioning the abrasive disc, with respect to the repositionable abrasive disc mounting assembly, in a second position. The first position includes the abrasive disc in a first position relative to the pressure feature. The second position includes the abrasive disc in a second position relative to the pressure feature assembly. Re-positioning includes an adjustment between the first and second position while the abrasive disc is still positioned on the drive shaft between the fastener and the back-up pad assembly.

A device for robot-assisted grinding is described. According to one embodiment, the device comprises the following: a manipulator; a grinding machine; a linear actuator that couples the grinding machine to a TCP (portable terminal) of the manipulator; and an extraction system connected to the outlet in the housing of the grinding machine. The extraction system is connected to an outlet on the grinding machine via a hose that is arranged in an approximately spiral shape around the housing of the grinding machine and the linear actuator, and is attached at one end to the manipulator.

A repositionable abrasive disc mounting assembly comprises a backup pad and a clamp assembly. The backup pad has a rotational axis of use and a major surface with projections extending outwardly therefrom. The backup pad further comprises an inwardly facing centrally disposed first fastening member, and also an outwardly facing centrally disposed second fastening member. The clamp assembly comprises inner and outer clamp members for securing an abrasive disc. The inner clamp member comprises an inwardly facing centrally disposed third fastening member adapted to repositionably engage the second fastening member in a discrete number of rotational orientations. The inner clamp member further comprises an outwardly facing centrally disposed fourth fastening member. The outer clamp member comprises an inwardly facing centrally disposed fifth fastening member adapted to securely engage the fourth fastening member. A method of abrading a workpiece using the repositionable abrasive disc is also disclosed.

A robotic system for modifying a surface is presented. The system includes a motorized robotic arm with an arm movement mechanism. The system also includes a tool coupled to the arm movement mechanism. The tool is configured to removably couple to an article configured to contact the surface. The system also includes a first actuator for moving the tool to a pick-up position relative to the article. The system also includes a second actuator for inducing a shear motion between the article and the tool in an article attachment step. The coupling between the article and the tool includes a hook and loop system.

The invention relates to the technical field of grinding tools, in particular to an abrasive cloth wheel base body and an abrasive cloth wheel, the abrasive cloth wheel base body comprises a metal disc and glass fiber gridding cloth, mounting holes used for being connected with grinding equipment are formed in the metal disc, and the first end face of the glass fiber gridding cloth is arranged on the metal disc in a press fit and attached mode; the second end face of the fiberglass mesh is used for adhering abrasive cloth. In the operation process, the metal disc provides good strength, and the metal disc is not prone to deformation to affect the grinding quality. The glass fiber gridding cloth base body plays a damping role between the metal disc and the abrasive cloth, vibration conducted to the metal disc during grinding is weakened, and the burden of operators is reduced.

A robotic system for modifying a surface is presented. The system includes a motive robot arm with an arm movement mechanism. The system also includes a tool coupled to the arm movement mechanism. The tool is configured to removably couple to an article configured to contact the surface. The system also includes a first actuator that causes the arm movement mechanism to move the tool into a pickup position with respect to the article. The system also includes a second actuator that causes a shearing motion, during an article attachment step, between the article and the tool. The coupling between the article and the tool comprises a hook and loop system.

A buffing pad assembly having a buffing pad, an attachment means, and an insert (e.g., plastic ring) is provided. In one embodiment, the attachment means is affixed (glued) to a back surface of the buffing pad and the insert is centered on an upper surface of the attachment means. The insert is then heated, affixing it to at least the upper surface of the attachment means. The insert is then deformed (while it is still pliable) into a curved-upward or an L-shape, forming a cavity on the backside of the buffing pad assembly. And because the insert is affixed to the attachment means, and the attachment means is affixed to the buffing pad, deforming the insert results in deforming a front surface of the buffing pad, resulting in a curved front surface.

Replacement method and system (1) for replacing an abrasive element (2) of a finishing apparatus (3) comprising a moving structure (5), a finishing head (4), provided with a support (6) for coupling to an abrasive element (2) in a releasable manner; the replacement system (1) comprises : a removal assembly (12) for uncoupling the abrasive element (2) from the support (6), which comprises removal station (13) having an invitation section (15) for receiving the finishing head (4) in a removal position (R), in which it protrudes from the section (15) towards a handling space (S) and a clamping device (19) which operates in said handling space (S) to grip at least part of said projecting zone (10); a store (14) for containing a plurality of abrasive elements (2); and a control unit (CU) to control the activation of the finishing apparatus (3) and said removal assembly (12) to replace in an automatic manner a worn abrasive element (2) of the finishing apparatus (3) with a new one.

The invention relates to an abrasive article comprising abrasive grain (12), a backing material (16) for the abrasive grain, and a reinforcing element. The backing material (16) comprises inactivated mycelia (20). A method for producing the backing material or the reinforcing element is also proposed.

A floor finish removal pad assembly and a method of removing floor finish with the floor finish removal pad assembly are described.SOLUTION: The floor finish removal pad assembly includes a compressible backing pad and a plurality of discontinuously arranged non-rigid coated abrasives or a discontinuously patterned and substantially coextensive single coated abrasive. Methods of using such floor finish removal pad assemblies can effectively remove floor finishes without the use of chemical strippers.SELECTED DRAWING: Figure 1

A device for robot-assisted grinding is described. According to one embodiment, the device comprises the following: a manipulator; a grinding machine; a linear actuator that couples the grinding machine to a TCP (portable terminal) of the manipulator; and an extraction system connected to the outlet in the housing of the grinding machine. The extraction system is connected to an outlet on the grinding machine via a hose that is arranged in an approximately spiral shape around the housing of the grinding machine and the linear actuator, and is attached at one end to the manipulator.

An abrasive rotary tool is presented that includes a cylindrical tool body having a curved lateral surface and a circular face. The abrasive rotary tool also includes a conformable abrasive film wrapped around an edge joining the curved lateral surface to the circular face. The conformable abrasive film includes a base portion coupled to the curved lateral surface and a plurality of protrusions extending from the base portion, each protrusion having a first width at the base portion and a second width at an opposing end. The second width is less than the first width. The rotary abrasive tool also includes a structured abrasive layer disposed on the conformable abrasive film. The structured abrasive layer has a plurality of precisely-shaped abrasive composites arranged in a repeating pattern. Each precisely-shaped abrasive composite includes a first substantially triangular-shaped face opposite a second substantially triangular- shaped face, a quadrilateral-shaped surface coupled to both the first and second substantially triangular-shaped faces, a cutting edge formed along one side of the quadrilateral-shaped surface, and a contacting edge formed along an opposite side, the contacting edge being longer than the cutting edge. The precisely-shaped abrasive composites comprise ceramic abrasive particles in a binder material.

The utility model discloses a chip carrier surface grinding device, which relates to the technical field of chip detection and comprises a platform for holding a carrier, a lifting mechanism fixedly mounted at the rear part of the top end of the platform and a connecting bracket fixedly connected to the top end of the lifting mechanism, the executing end of the rotating motor penetrates through the connecting support and is in transmission connection with a special-shaped support, a driving motor is fixedly installed on the lower portion of the side wall, away from the rotating motor, of the special-shaped support, and the executing end of the driving motor penetrates through the special-shaped support and is in transmission connection with an installation cylinder used for installing abrasive paper. According to the grinding device, the mounting cylinder can perform clockwise surrounding motion on the surface of the carrier, meanwhile, the mounting cylinder can also rotate, the grinding efficiency is greatly improved through the dual-motion mode, and the surface of the carrier can be quickly and effectively ground.

The utility model discloses an abrasive paper fixing mechanism for abrasive paper polishing equipment, and particularly relates to the technical field of abrasive paper fixing, which comprises a supporting disc, a threaded column is fixedly connected to the center of the top of the supporting disc, a connecting rod is fixedly connected to the top of the threaded column, and a fixing ring is fixedly connected to the edge of the top of the threaded column. A plurality of fixing studs are fixedly connected to the periphery of the top of the threaded column. Firstly, a first extrusion plate is controlled by rotating an extrusion nut to extrude and fix the edge of an arc-shaped clamping groove located in the top of a supporting disc, and a limiting ring is controlled by rotating a rotating ring to drive a pushing plate through a fixing column to extrude the middle of a bottom abrasive paper body, so that the abrasive paper body is tightened; the abrasive paper body is stressed more uniformly during polishing, premature abrasion or tearing caused by improper fixation of the edge of the abrasive paper is reduced, the service life of the abrasive paper is prolonged, the replacement frequency of the abrasive paper is reduced, and the production cost is saved.

The present invention relates to a polishing pad 40 of a sander 15, the polishing pad 40 having a drive holder 49 located on the machine side 41 of the polishing pad and fixed non-rotatably to the drive 26 of the sander 15 so that the polishing pad 40 can be driven by the sander 15 in a particularly rotary and / or eccentric polishing motion suitable for polishing a workpiece W. The polishing pad has a working side 42 opposite the machine side 41, the working side 42 having a working surface 45 on which a polishing means 90 for abrasively polishing the workpiece W can be fixedly or removably arranged using an adhesive layer 66. A plurality of inlet openings 48 for the inflow of dusty, dirty air S are located on the working surface 45, and a plurality of outlet openings 43 fluidly connected to the inlet openings via passages 59 are located on the machine side 41. The outlet openings 43 are located in a suction area 44 inside an annular sealing element 80 located on the machine side 41 for sealing contact with the opposing sealing element 36 of the sander. The polishing pad has a flat body 50 with a support wall 54 provided for supporting a polishing means 90, said support wall being reinforced by a rib structure 55, with a plurality of ribs 56 projecting beyond the support wall 54 towards the machine side 41. The ribs 56 define cavities 57 closed by the support wall 54 towards the working side 42 and open towards the machine side 41. The invention also relates to a sander including a polishing pad of this type. According to the invention, a sealing element 80 covers at least some of the cavities 57 towards the machine side 41.