A method and rivet apparatus to rivet a workpiece comprises an upper riveting portion and a lower riveting portion. The lower riveting portion comprising a fixed base, support member, and a pin assembly. The pin assembly comprises a center pin, a forming pin, a first biasing member, an outer shroud, and a second biasing member. The center pin pushes against a tail of a rivet to deform the tail of the rivet. The forming pin, fixedly coupled to the support member, pushes against the tail of the rivet to deform the tail of the rivet. The first biasing member, disposed below the center pin, biases the center pin through the forming pin and away from the support member. The outer shroud encircles the forming pin and the center pin. The second biasing member, disposed below the outer shroud, biases the outer shroud away from the support member.

The present invention provides a blisk machining center, including: A-axis rotary assembly, B-axis rotary assembly and C-axis rotary assembly, wherein the A-axis rotary assembly drives the blisk to rotate, the B-axis rotary assembly drives an attachment head to rotate, and the attachment head drives a tool to machine the blisk, and the C-axis rotary assembly drives the A-axis rotary assembly to rotate, wherein the intersection of the rotation axis of the B-axis rotary assembly and the rotation axis of the C-axis rotary assembly is the center of the machining area of the blisk, and the tip point of the tool is on the rotation axis of the B-axis rotary assembly. In the present invention, the machining area is near the rotation center of the C-axis turntable, which ensures that the speed and acceleration of the movement of each physical axis are kept within a lower range than those of general machine tools when the machine tool is performing the machining of the 5-axis rotary tool center point.

Centering apparatuses and methods for precision placement of a product or component, such as a ceramic honeycomb body, prior to a post-production processing steps are provided. In particular, after extrusion of a component or ware, the component or ware oftentimes requires one or more post-production processing steps in order to obtain a final product. The centering apparatuses and methods described herein provide for the precise and accurate centering of the product (or component) prior to performing these post-production processing steps, thereby obtaining repeatable, consistent, high-quality final products.

The present invention relates to a handling apparatus 1 for use at a machine tool, comprising: a base body 2 which can be set up on a floor space, a storage body 3 which can be set up on the top side of the base body 2 and serves to store a plurality of workpieces or tools, and a handling robot 5, which is arranged on the base body 2 and has a gripper device 6 for receiving a workpiece and/or tool from the storage body 3 and for inserting the workpiece and/or tool taken from the storage body 3 by the gripper device 6 into a corresponding workpiece and/or tool support of the machine tool. A plurality of first set-up elements 18 are arranged on the bottom side of the storage body 3 and a plurality of first centering elements 19 are arranged on the top side of the base body 2, wherein, when the storage body 3 is set up on the top side of the base body 2, the first set-up elements 18 interact in each case in pairs and in self-centering manner with the first centering elements 19 in such a way that the storage body 3 adopts a predetermined reference position in relation to the base body 2.

A modular frame structure for a machining center which includes at least one modular unit having a first and a second individual module. Each individual module includes two mutually parallel vertical columns, each one extending parallel to a vertical direction; a pair of first horizontal cross-members, each one extending parallel to a first horizontal direction, each horizontal cross-member of the pair of first cross-members being joined to both columns. The modular unit further includes two pairs of second horizontal cross-members, each horizontal cross-member parallel to a second horizontal direction that is perpendicular to the first horizontal direction.

A positioning aid is disclosed for a core drilling machine, having a core drill for creating a hollow-cylindrical drill hole. The positioning aid includes a light source for creating a centring pattern on a workpiece. The positioning aid is fastened in a releasable and centered manner to the core drilling machine. The positioning aid may include a laser pointer, which is releasably fastened to a centring pin.

A positioning device to position, during in vehicle construction, a vehicle body component having at least one locating bore. The positioning device includes a locating pin having a conical end designed to be guided axially through a locating bore of the vehicle body component to centre and position the vehicle body component. The locating pin is mounted in a radially floating manner.

A zero-positioning mechanism of a metalworking machine contains: a base, a locking jig, and a pneumatic cylinder. The base includes at least one installation area. The locking jig includes a body, a slider assembly, and a fixing plate. The pneumatic cylinder includes the piston and a push unit. The body includes a through orifice, the slider assembly includes two pushers and four sliders. A respective pusher has a lower fringe, two beveled fringes, and multiple receiving orifices. A respective receiving orifice is configured to accommodate a respective one of multiple resilient elements. A respective slider is arranged on the respective beveled fringe of the respective pusher and has a conical positioning portion. The fixing plate includes a first face and a second face. The first face has multiple coupling apertures and four locking apertures, and the second face has a groove with multiple chutes.

A method of correcting an axial position of a workpiece support (1) used for removing material from a dental workpiece (2) which is held by the workpiece support (1) and is rotated together with the workpiece support (1) about a drive rotation axis (3) when material is being removed. The workpiece support (1) has at least two workpiece support parts (4, 5, 6) which can be separated from each other and connected to each other. One of the workpiece support parts (4, 5) has at least one compensation region (7) with a material projection (8) for introducing a compensation surface (9) by removing material, and the other workpiece support part (6) has a seating surface (10) for connecting to the compensation surface (9) in a form fitting manner.

A device for extracting drilling sludge for use at difficult to access locations on a building site includes a main body. The main body has a cavity on a lower side of the main body and a drilling sludge that is disposed in the cavity during a use of the device is extractable from the cavity by a suction device. The main body also has an extraction opening which opens into the cavity.