The present invention relates to a smart BGA chip maintenance device comprising a base, a moving worktable, a horizontal slide, a vertical slide, a grinding knife, an electronic microscope and a mini-sized air compressor, wherein the base comprises a platform and a portal frame. The moving worktable is propelled by a first driving mechanism, wherein the horizontal slide is propelled by a second driving mechanism, wherein the vertical slide is propelled by a third driving mechanism. Both a grinding knife and an electronic microscope are provided on the vertical slide. An air pipe is disposed at the side of the grinding knife, wherein the grinding knife is propelled by a fourth driving mechanism to rotate, wherein the device can automatically perceive the flatness of the chip, ensuring a horizontal grinding process and avoiding the damage to the soldering pad of the circuit board.

A finishing apparatus includes a workpiece-receiving device, a rotary drive configured to drive a workpiece in rotation about a workpiece axis and an oscillatory drive configured to produce a relative movement between the workpiece and a finishing tool in a direction that is parallel to the workpiece axis. A workpiece-conveying device has a workpiece holder that is moveable by a drive device between a working position in which the workpiece is in position to be machined and a loading/unloading position in which the workpiece is loadable/unloadable. The workpiece holder has a support device configured to support the workpiece. The drive device is formed as a swivel drive such that the workpiece holder is swivelable between the working position and the loading/unloading position along an arcuate swivel path.

A finishing apparatus includes a workpiece-receiving device, a rotary drive configured to drive a workpiece in rotation about a workpiece axis and an oscillatory drive configured to produce a relative movement between the workpiece and a finishing tool in a direction that is parallel to the workpiece axis. A workpiece-conveying device has a workpiece holder that is moveable by a drive device between a working position in which the workpiece is in position to be machined and a loading/unloading position in which the workpiece is loadable/unloadable. The workpiece holder has a support device configured to support the workpiece. The drive device is formed as a swivel drive such that the workpiece holder is swivelable between the working position and the loading/unloading position along an arcuate swivel path.

In an apparatus for multiple-bearing grinding of workpieces, such as crankshafts, wherein a support element seat occurs at a bearing point at the same time as the grinding of the main bearing, a grinding-supporting unit is used that contains a grinding spindle head having at least one grinding disk and support elements in the form of support jaws or support bodies that can be swiveled in. After the support point seat is ground, the support elements are brought into contact there-with and support the workpiece during the further machining. The simultaneous grinding of the support point seat and several bearing points results in a reduction in the machining time in the grinding of the workpiece compared to the prior art.

In an apparatus for multiple-bearing grinding of workpieces, such as crankshafts, wherein a support element seat occurs at a bearing point at the same time as the grinding of the main bearing, a grinding-supporting unit is used that contains a grinding spindle head having at least one grinding disk and support elements in the form of support jaws or support bodies that can be swiveled in. After the support point seat is ground, the support elements are brought into contact there-with and support the workpiece during the further machining. The simultaneous grinding of the support point seat and several bearing points results in a reduction in the machining time in the grinding of the workpiece compared to the prior art.

Embodiments herein relate to a retaining ring for use in a polishing process. The retaining ring includes an annular body having an upper surface and a lower surface. An inner surface is connected to the upper surface and the lower surface. The inner surface includes one or more surfaces that are used to retain a substrate during processing. The one or more surfaces have an angle relative to a central axis of the retaining ring. The inner surface also includes a plurality of facets. Channels are disposed within the retaining ring to allow passage of a polishing fluid from an inner surface to an outer surface of the retaining ring disposed opposite of the inner surface.

A burnishing tool uses a relatively small pressing load in burnishing. The burnishing tool for machining a target surface of a workpiece includes a base and a tip portion located on a distal end of the base. The tip portion includes a linear slide-contact portion that linearly contacts and slides on the target surface.

A burnishing tool uses a relatively small pressing load in burnishing. The burnishing tool for machining a target surface of a workpiece includes a base and a tip portion located on a distal end of the base. The tip portion includes a linear slide-contact portion that linearly contacts and slides on the target surface.

A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine and at least one honing unit (130) which is mounted on the support structure and which has a main support (160), which can be mounted fixedly in relation to the support structure, and a spindle unit (150), which is supported by the main support and in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool. The honing machine furthermore has a linear guide system which is arranged between the main support (160) and the spindle unit (150) and which serves for guiding a linear stroke movement of the spindle unit (150) relative to the main support (160), a stroke drive for generating the stroke movement of the spindle unit (150), and an alignment system (200) for setting the alignment of the spindle axis (155) in relation to the support structure (120). The alignment system (200) is designed for the continuously variable, reversible setting of the alignment of the spindle axis (155) in relation to the support structure (120), wherein the alignment system is designed for the independent setting of the position of the spindle axis (155) along two mutually perpendicular axes of translation and for the setting of the orientation of the spindle axis (155) in relation to two mutually perpendicular axes of rotation.

A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine and at least one honing unit (130) which is mounted on the support structure and which has a main support (160), which can be mounted fixedly in relation to the support structure, and a spindle unit (150), which is supported by the main support and in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool. The honing machine furthermore has a linear guide system which is arranged between the main support (160) and the spindle unit (150) and which serves for guiding a linear stroke movement of the spindle unit (150) relative to the main support (160), a stroke drive for generating the stroke movement of the spindle unit (150), and an alignment system (200) for setting the alignment of the spindle axis (155) in relation to the support structure (120). The alignment system (200) is designed for the continuously variable, reversible setting of the alignment of the spindle axis (155) in relation to the support structure (120), wherein the alignment system is designed for the independent setting of the position of the spindle axis (155) along two mutually perpendicular axes of translation and for the setting of the orientation of the spindle axis (155) in relation to two mutually perpendicular axes of rotation.