Abstract:
The deep-rolling roller head (1) has a flat prismatic body constituted by two outer, nearly rectangular lateral surfaces parallel to each other and at a distance from each other that corresponds to the width of the deep-rolling roller head. The lateral surfaces are enclosed all around by rectangular faces (5, 6) one of which (5) is provided with an installation for the reception of a roller cage (7, 8) in which a deep-rolling roller (7, 8) is supported so as to be freely rotatable. The deep-rolling roller (7, 8) is supported on a guide roller (13) relative to the deep-rolling roller head (1), said guide roller being in turn freely rotatable in the prismatic body (1). The prismatic body of the deep-rolling roller head (1) is constituted by two half bodies (2, 3) connected to each other detachably by means of screws (11, 12) and each of which having only part of the overall width of the deep-rolling roller head (1). The two half bodies (2, 3) are connected to each other by an articulation (4) along the face (5) which is across from the face (6) provided for the reception of the roller cage (7, 8).
Abstract:
A tool is provided having two deep rolling work rollers (2) made of a hard material which, for the deep rolling of grooves in crankshaft journals or crank pins, are arranged at a first mutual distance that corresponds to the specific width of the journals. Each of the work rollers (2) is supported to float in a pocket-shaped recess (14) provided in a cage (4), in accordance with the first distance. The cage (4) consists of a material which, compared to the material of the work rollers (2), has a lower degree of hardness but superior sliding characteristics. The cage (4) is located at the extreme end of the long leg (5) of an L-shaped tool holder (6), and has a second distance (8) to a second cage for support of the same work rollers (2). A minimum of one of the recesses (14) of the second cage is configured in a way to provide the work roller (2), at least in the direction of the first distance, with increased mobility, and in addition, a support surface is provided which engages the outer circumference of the work roller (2).
Abstract:
A planishing tool includes an axially slideable adjustment collar. When the collar is retracted to an inactive or adjustment position it may be rotated to vary the operating diameters of the planishing rollers. When the collar is released, the parts are locked against rotation relative to the mandrel in an active or operative position.
Abstract:
The feed advance capacity of smoothing rollers in a smoothing rolling mill is utilized to the fullest possible extent by displacing the smoothing rollers relative to each other in the axial direction so that the facing ends of the smoothing rollers are located in different planes extending radially relative to the longitudinal, rotational axis of the work piece. The direction of rotation of one of the smoothing rollers is taken into account and the length of displacement is calculated by a formula.
Abstract:
The deep-rolling device (8) of a deep-rolling machine (1) for crankshafts (3) is made in scissor construction. Two swivellable scissor arms (9, 10) opposite each other each carry a deep-rolling roller head (13) or a backing roller head (14) respectively. The backing roller head (14) is fitted with two parallel-axis backing rollers, the rotational axes of which lie in a common plane. The backing roller head (14) also has an axial guide which is arranged in front of the backing rollers in swivel direction (35) for closing, the longitudinal axis of which guide stands perpendicular to the rotational axis of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the rotational axes of the backing rollers, and the axial width of which is greater than the width of the backing roller head (14) and slightly smaller than the distance of adjacent oil collars of a main bearing journal or big end bearing journal.
Abstract:
A roller cage (4) is provided for the guidance of a minimum of one work roller (2) of a tool for deep rolling of radii or grooves on crankshaft journals or crank pins, where the roller cage (4) is supported at the end (8) of the long leg (9) of an L-shaped tool holder, and is loosely guided in the longitudinal direction of the long leg (9) in a tab engaging in a longitudinal groove on the underside (13) of the roller cage (4) from the end (8) of the long leg (9). The longitudinal groove of the roller cage (4) has a considerably greater width than the width of the tab.
Abstract:
A roller cage (1) is provided with a prismatic base body for guiding a minimum of one work roller designed for deep rolling of grooves on crankshaft journals or crank pins, in a first (7, 8) concave recess on one of the two faces (5) of the prismatic body on a section of the circumference of the work roller, wherein the rotational axis of the work roller is inclined at an angle (10), in which the section guided inside the roller cage (1) has a shorter distance to the longitudinal center (C—C) of the prismatic body than the remaining section with a first, groove shaped recess (11) along the longitudinal center (C—C) of the base area (3) of the prismatic body, as a passage for one support roller for the work roller, and a second groove shaped recess (12) along the longitudinal center (C—C) on the side (2) of the prismatic body located opposite the first groove shaped recess (11), for support of the roller cage (1) on the end of the long leg of an L-shaped tool holder, by providing on the second face of the prismatic body (1) located opposite the first concave recess (7, 8), a minimum of one second concave recess identical by position and size to the first concave recess (7, 8).