JPS6018245A - Rolling device of crank shaft - Google Patents

Abstract

PURPOSE:To enable reduction in the size of a titled device by rotating synchronously a master crank shaft and a crank shaft to be worked in the same phase with each other, turning the working units provided in the intermediate parts between the two shafts and rolling the pin parts of the work. CONSTITUTION:Clamps 9 which fit and support working units 4 freely rotatably and freely vertically movably against springs 7 into the pin parts 2a of a master crank shaft 2 and grasp under pressure the pin parts 3a of a crank shaft 3 to be worked are provided. A positioning member 11 is then moved left to engage and position the units 4. A work 3 is attached to the device by opening and closing the arms 9 and after the member 11 is retreated toward the right, the work 3 is synchronously rotated in the same phase as the phase of the shaft 2 by a drivin source 10 and the pin parts 3a are grasped under pressure by rollers 8 and are rotated around the axial line of the work 3, by which the rolling is accomplished. The working device is thus made smaller in size and lower in cost and the easy attaching and detaching of the work are made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to an apparatus for rolling a crankshaft portion of an engine.

Conventionally, as this type of device, for example, Japanese Patent Application Laid-Open No. 55-92242
As shown in No. 1, a work consisting of an upper (I) mask crankshaft and a lower (I) crankshaft to be machined are placed side by side on a machine base, and the mask crankshaft is placed in the middle between them. A type is known in which a processing unit is provided that extends between a bin part and a corresponding bin part of the workpiece, and rolling processing is performed on the bin part of the workpiece by a processing roller on the unit side. In this case, the pair of mask crankshafts are arranged in parallel and the one
Generally, the pair is rotated in synchronization with each other by a drive source, and the unit and the workpiece and metal are driven by the unit, and the unit is relatively large and expensive as a whole. It's an inconvenience that's a win.

The purpose of the present invention is to obtain a system M that does not have such inconveniences, and a workpiece consisting of an upper mask crankshaft and a lower crankshaft to be machined is coated with a thin gold film on a machine base. , a vertical machining unit (71) extending between the bin part of the mask crankshaft and the corresponding bin part of the workpiece in the middle part thereof, in which the mask crankshaft and the workpiece are connected. A positioning member is connected to the drive source so as to give mutually synchronized rotation in the same phase to both, and furthermore, a positioning member is provided on the upper side that engages with the processing unit to completely position it. It is provided so that it can be switched freely.

An example of Kinoe Akemi h1m is explained in Appendix 1.

In the drawing, (1) indicates the packing stand, and the upper part (1) is placed on the packing stand (1).
A workpiece (3) consisting of a crankshaft to be machined (bottom +)ljl is placed in parallel with the masked crankshaft (2), and the masked crankshaft (2) is placed in the middle of the workpiece (3).
A vertical processing unit (4) extending between the bottle part (21L) of 2) and the corresponding bottle part (3) of the workpiece (3)
). As shown in the figure, 1-1 said processing unit (4)
The shaft (2) and the workpiece (3) are arranged in parallel to each other, and the shaft (2) and the workpiece (3) are removably attached between the tail stock (51) on the negative side and the holding shaft (6) of (+12 (III)). 411d: The top part of the mask crankshaft (2) is held so that it is held in place.
a) is rotatably fitted and supported vertically and vertically against the spring (7), and the lower end thereof is supported by the workpiece (
A pair of clamp arms f91 (9) k that can be opened and closed to clamp the bottle part (5 & J of 3) via the roller (8)
The model is 0iif.

Here, the present invention relates to the mask crankshaft (2).
) and the workpiece (3) with the motor and other components σ) pml)
Source (by the action j1 of the driving source (1°) in connection with the law -h
A-manufacturer +21 (31) is provided with a rotation in the same phase that is synchronized with each other, and a positioning member 01 that engages with and positions the processing unit (41) on the upper side thereof.
) The full working position and the non-working position can be switched freely by hardware.More specifically, the mask crankshaft (2) and the workpiece (3) are connected to each other by a holding shaft at each end +61 f (outer shaft M at 31). The drive source +1 (
11, and thus, by the operation of the drive source 00), rotations in the same phase that are synchronized with each other are given to the rotation parts Frj and 21131.

Furthermore, the positioning member θυ can be switched between an operating position on the left side in the drawing and an inoperative position on the right side in the drawing by means of the operating cylinder IJ (141), and in the working position U'j1, the positioning member θυ
The 7-shaped groove (15) on the surface engages the ball on the top of the unit (4) to hold the unit (4) in place.

It was made to work for positioning. In addition, the unit (
4) is the above-mentioned pair of clamp arms (9) (9)]
311 To close a separate FjI cylinder (not shown) (
Q: It is assumed that it will be completed.

To explain the entire operation, from the state of the first bacterial infection to U? If the deciding part side QJJ shifts to the left in the drawing, the clamp arm (9) can be moved in the state of 10 because the member circle engages with the processing unit (4) and can be stably positioned at a position other than the UniSoliF.
(9) Fully open the workpiece (3) and take it out from below, and then guide a new workpiece (3) under it (from ijjl to the mounting state) and first close the arm (91191 and the positioning member) 01) to the right in the drawing, and then activate the drive source (Ilj) to move the workpiece (3+'
The i-mask crankshafts (2) are rotated in the same phase and in synchronization with each other. Accordingly, the workpiece (3
) bottle? 'il (C5a) e ii unit (4)
The workpiece (3) is clamped and pressed by the rollers (8).
) is rotated around the axis of the roller (8) and subjected to rolling processing by the roller (8).Next, when the processing is completed, the drive by the drive source (I+l+ is stopped) and as described above. Move the positioning member (Ill to the left) to apply the echo knit (41), remove the workpiece (3), replace it with the next workpiece (3), and repeat this process. It rotates by driving the crankshaft and workpiece by a drive source.
Compared to the conventional type in which a pair of mask crankshafts are arranged side by side and rotated tl+, the structure can be made smaller and cheaper, and the processing unit can be positioned and fixed by a positioning member. Attach and detach the workpiece with
0 that has the effect of simply adjusting the lit

[Brief explanation of the drawing]

Fig. 1 is a front view of an example of the apparatus of the present invention, Fig. 2 is a side view with a part of the processing unit section completely cut away, and Fig. 3 is its I.
A cross-sectional view taken along the line -III. (1)・・・1 unit (2)・・・Mask crankshaft (X3)・
...Working unit (1)... Drive source (11)...Positioning member special H'r output; Person R1 2 people outside Giken Kogyo Co., Ltd. Fig. 1 4 [2 [2 Knee L; ] 1 2a 5 2 1 : 3 5 69 9'a 1 ] 3 Fig. 2 5

Claims (1)

[Claims] A work consisting of an upper mask crankshaft and a lower crankshaft to be machined are arranged side by side on a machine stand, and a bin part of the mask crankshaft and a corresponding bin part of the work are placed in the middle. The mask crankshaft and the workpiece are connected to a drive source so that they rotate at the same time (in synchronization with the R of the Xf phase). A crankshaft rolling machining device is provided with a positioning member that engages with the machining unit and determines its metal position on the upper side thereof and is switchable between an operating position and a non-operating position.