An edge break apparatus including a frame having a first workpiece interface surface, a second workpiece interface surface arranged relative to the first workpiece interface surface so as to form a predetermined angle between the first workpiece surface and the second workpiece surface, and a first aperture extending through the frame so as to intersect the predetermined angle, and an edge break member extending through and interfaced with the first aperture so as to adjustably define a cutting depth of the edge break member relative to an apex of the predetermined angle.

An automatic movable machine includes a vertical plate and a support plate are fixed, in a perpendicular direction to each other, to a semicircular chamfering angle adjusting plate fixed to a head of the movable chamfering machined, a moving body is provided at the vertical plate on the inside of the pipe or the lower side of the metal sheet, and equipped with an internal roller regulated by a spring contact with the inside of the pipe or the lower side of the metal sheet, the support plate has a fixing bolt, a fixing plate is provided to the support plate, and provided at the front of a gear box, and external rollers are provided at the front of the gear box, and allow the speed of the rotational force of a motor, to be reduced in the gear box and transmit the speed-reduced rotational force.

A device for machining workpieces has a machining tool, a first workpiece-guiding element and a second workpiece-guiding element. The first workpiece-guiding element and the second workpiece-guiding element are designed to guide a workpiece, in a defined way, relative to the machining tool. The machining tool has an axis of rotation and a co-axial opening. The machining tool rotates about the axis of rotation for machining the workpiece. The first workpiece-guiding element is arranged in the opening of the machining tool co-axially to the axis of rotation.

An apparatus for metal-cutting machining of wear-affected bit-head-proximal end regions of bit holders of road milling machines encompasses: a rotary actuator having an output member rotating around an actuator rotation axis; at least one material-removing tool, rotatable around a tool rotation axis, which is coupled or couplable to the output member so as to rotate together; a positioning arbor, extending along an arbor axis, which is embodied for introduction into a bit receptacle opening of a bit holder and which comprises an abutment segment, located radially remotely from the arbor axis and facing away from the arbor axis in a direction having a radial component, which is embodied for abutment against an inner wall of the bit receptacle opening.

A material-removing region, populated with cutting edges, of the material-removing tool is arranged between the positioning arbor and the output member.

Beveling tools having a variety of features are described. The tools can utilize a combination of handles, a protective external frame, guide rollers that are positionally adjusted by swing arms with timing lobes, or by an alternative guide bar mounting system, a helical knurled drive roller, guide rollers that have a convex or crowned face, skewed guide rollers, a positive clutch assembly for governing force applied to the guide rollers, a hand crank assembly for moving the tool when mounted on a workpiece, position adjustment provisions for varying the position of a milling head, and indicators providing visual feedback to an operator.

An automatic movable machine configured such that: a vertical plate and a support plate are fixed, in a perpendicular direction to each other, to a semicircular chamfering angle adjusting plate fixed to a head of the movable chamfering machine; a moving body is provided at the vertical plate on the inside of the pipe or the lower side of the metal sheet, and equipped with an internal roller regulated by a spring contact with the inside of the pipe or the lower side of the metal sheet; the support plate has a fixing bolt; a fixing plate is provided to the support plate, and provided at the front of a gear box; and external rollers are provided at the front of the gear box, and allow the speed of the rotational force of a motor, to be reduced in the gear box and transmit the speed-reduced rotational force.

An apparatus (100) for machining a tubular or round-bar type piece, wherein the apparatus comprises a frame element (102), a machining unit (104), as well as a threaded shaft (110), which is fitted to the frame element in a rotatable and axially immobile fashion and has a first section 110a) provided with a right-handed thread and a second section (110b) with a left-handed thread. The first section is provided with at least one first support element (106a) and the second section is provided with at least one second support element (106b), the mutual distance between the support elements being adjustable in response to rotating the threaded shaft, such that the support elements, for example wheels, are adapted to touch a workpiece and to support and guide the apparatus (100) in the process of machining the piece. At least one of the support elements, such as wheels (106a, 106b), is adapted to be capable of rotating relative to its axis in response to moving the apparatus along the surface of a workpiece.

The present invention relates to a portable pipe outer diameter-chamfering apparatus characterized in that a vertical fixing plate is fixed to the outside of the vertical plate, a horizontal fixing plate is fixed in an orthogonal direction to the tip of the vertical fixing plate, a rectangular link with one open side is coupled to move upward and downward along the vertical fixing plate, a pair of circumscribing rollers, each of the pair of circumscribing rollers being installed on either end portion of the rectangular link with one open side, respectively, the rectangular link with one open side moves up and down along the vertical fixing plate, a moving body is installed in the horizontal fixing plate, the moving body moves up and down, and an inscribing roller which is in close contact with an inside of the pipe is installed on the moving body.

The present invention provides a beveling tool including: a body with a shaft hole formed through the center; a plurality of cutter blades arranged at predetermined distances on the circumferential surface of the body, each having a radial primary blade with a radial primary relief angle ranging from about 10 to about 20 degrees and a radial secondary blade with a radial secondary relief angle ranging from about 25 to about 35 degrees (or about 35 to about 45 degrees); discharge grooves formed longitudinally between the cutter blades to discharge chips produced in beveling; and a shank inserted in the shaft hole of the body, in which the body and the shank are connected by brazing. With the beveling tool of the present invention, it is possible to smoothly discharge chips produced in beveling and to prevent damage to the cutter blades.

A trimming device of the edge banding machine includes a mounting assembly attached to a fixing assembly, a wheel assembly mounted to the mounting assembly and having a first wheel rolled on a top surface of a to-be-processed workpiece and a second wheel rolled on an edge band adhered to a lateral side of the to-be-processed workpiece, a moving scraper unit including a feeding and retracting assembly having a slider slidably mounted on a slide groove of the mounting assembly, and a scraper assembly mounted on the feeding and retracting assembly and having a scraper, and a retractable rod driving the moving scraper unit to move along the slide groove. Through movement of the moving scraper unit and action of the retractable rod, the scraper maintains constant contact with the edge band to solve a problem of over-trimming or instability of the front and rear ends of the edge band.