JPS6119561A - Fillet roll work device - Google Patents

Abstract

PURPOSE:To enable a device to roll work a crankshaft of various kinds with a different pitch, by supporting to a movable bed two sets of fillet roll work device for roll working a journal part and a pin part and enabling a distance between these devices to be changed by a numerical control instruction. CONSTITUTION:Journal part use and pin part use fillet rollers provided in a movable bed 9 are positioned corresponding to the respective fillet part of a journal part and a pin part in a crankshaft of various kinds in accordance with a feed movement of the movable bed by a numerical control instruction. And the fillet roller, swivelling a swivel arm 14c and a plate copying the journal part and the pin part by rotating a crankshaft W, rotates around these parts further on own axis of the roller, simultaneously roll working a fillet in the journal part and the pin part. Accordingly, a fillet roll work device, eliminating the necessity for a master crankshaft, enables a different crankshaft to be easily roll worked without causing the necessity for work of rearrangements or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a fillet rolling device for a crankshaft of an engine or the like.

<Prior Art> The fillet portions of the journal and pin portions of crankshafts are rolled to improve their strength. A conventional fillet roll hanging device is, for example, disclosed in Japanese Patent Application Laid-open No. 54-1.
As shown in No. 17849, 51C, the fillet part of the pin part (or journal part) of the crankshaft,
A plurality of plates are provided corresponding to the pitch of the pin part (or journal part), and the fillet part of each pin part (or journal part) is rolled at the same time. Furthermore, the fillet roller is swung through a plate by a mask crankshaft corresponding to the crankshaft to be processed.

<Problems to be Solved by the Invention> According to the above-mentioned conventional device, since the master crankshaft corresponding to the crankshaft to be machined is used to swing the fillet roller, the pin portion (or journal portion)
We can accommodate crankshafts with different pitches in the longitudinal direction, and even different pitches between the adjacent journal and pin parts. Mask crankshaft replacement and fillet row 2y! / Requires setup change to change the axial position of the held plate, lacks versatility for various types of crankshafts, and has problems in that work efficiency cannot be improved.

The present invention is a mask crankless system that eliminates the need for a mask crankshaft, and enables rolling of various crankshafts with different pitches, as well as filleting of pin portions and journal portions at the same time. The problem was solved by begging.

Furthermore, the present invention makes it possible to perform fillet rolling on one side of the journal part on the front side of the crankshaft at the same time as fillet rolling on other pin parts and journal parts using a fillet roller dedicated to one side. be.

<Means for Solving Problem Z> The present invention provides a movable base capable of feeding and moving in accordance with a numerical control command along the axial direction of a crankshaft rotatably supported by a drive device; a swinging arm supported swingably around an axis parallel to the axis of the shaft; and a support member supported on the movable table with a spacing in the axial direction of the crankshaft relative to the swinging arm; A pair of plates holding fillet rollers facing the fillet portion of the journal portion of the crankshaft are pivotally supported on this support member so as to be openable and closable, and the swing arm holds a fillet roller facing the fillet portion of the pin portion of the crankshaft. A pair of plays) YIJ is pivoted so that it can be closed.

Furthermore, in addition to the above-mentioned means, the present invention provides another support member, and this support member includes a pair of plates (Y) that hold fillet rollers facing the fillet portion on one side of the journal portion at the end of the crankshaft. This is what I supported.

<Effect> The above technical means works as follows.

The fillet rows 2 for the journal part and the pin part provided on the movable base correspond to the respective fillet parts of the journal part and pin part of various crankshafts by the feed drive of the movable base based on numerical control commands. As the crankshaft rotates, the swing arm and plate revolve following the journal and pin sections, and rotate to roll the fillets of the journal and pin sections at the same time.

Furthermore, one side of the journal portion at the end of the crankshaft is fillet rolled at the same time as the journal portion and the pin portion are filledet rolled by the roller for one side fillet of the journal portion.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, 1 is a bed, and 2.3 is a column fixed on the ped 1. A main shaft 4 having a horizontal axis is rotatably supported on one column 2 so as to be rotationally driven and angularly controllable by a drive motor (not shown). Reference numeral 55 is a chuck provided at the end of the main shaft 4. The other column 3 is provided with a tail stock 6, and a crankshaft W is supported between the chuck 5 and the tail stock 6.

A guide space 7 is fixedly installed between the upper surfaces of the columns 2.3,
A guide rail 8 is provided on the horizontal surface of the upper surface of the guide base 7 and extends along the axial direction of the crankshaft W. A movable base 9 is guided on the guide rail 8 so that it can be moved in accordance with numerical control commands. Reference numeral 10 denotes a feed motor for the movable base 9, which rotates a ball screw 11 screwed into a nut 12 fixed to the lower surface of the movable base 9.

A pair of support plates 13 are vertically provided on the lower surface of the movable base 9. This support plate 13 has a first support arm 14α that is swingable around the axis of the crankshaft W.
, the second support arm 14b, and the swing arm 14c are supported as will be described later.

As shown in FIGS. 2 to 4, an upper telete 15 and a lower plate 16 are pivotably supported on the first support arm 14a by a support shaft 17 parallel to the axis of the crankshaft W so as to be openable and closable. Further, at the tips of the upper plate 15 and the lower plate 16, there is a fillet roller 3 facing the fillet portion of the journal portion J of the crankshaft W.
7 is attached via a roller holder. Upper play 1□5 and lower play 2, □6. ) A pressurizing cylinder 18 is attached to the rear end opening/closing line and the fillet roller.

An upper plate 19 and a lower plate are also pivotably supported on the swing arm 14e by a support shaft 4 so as to be openable and closable. A fillet roller holder facing the fillet portion of the pin portion P of the crankshaft W is attached to the tip of the upper plate 19 and the lower plate through a roller holder, and a cylinder for opening/closing and pressurizing the fillet roller is installed between the rear ends. n
is installed.

Furthermore, the second gripping arm 14b also has an upper 1'
The 57' plate 39 and the lower plate are pivotably supported by a support shaft so that they can be opened and closed. This second support arm 14
As shown in FIG. 4, at the tip of the upper plate 39 which is pivotally supported by h, there is a fillet row that faces only the fillet on one side of the front end journal part of the crankshaft W. A roller 42 is attached to the tip of the lower plate 40 via a roller holder, which contacts the north of the journal portion.

In Figures 1 and 2, the imperial order is attached to the first prong arm 14t.
24 is a cylinder for regulating the plate opening angle and degree position, which is pivotally supported by the second support arm 14A, and 24 is a cylinder for regulating the plate opening angle position, which is pivotally supported by the swing arm 4C. . Reference numeral 6 indicates a regulating plate that moves up and down with the cylinder, and when the plate is opened, the swinging arm 1
I am trying to control the swinging of the shaft.

The mutual spacing of the first and second support arms 14Z, 14b and the swing arm 14e can be automatically adjusted. Its configuration will be explained with reference to FIG.

The first support arm 14cL is swingably supported by a fixed shaft fixed to the support plate 13. On the other hand, the second holding arm 14b is connected to a pair of support plates 13 coaxially with the fixed shaft.
It is swingably supported by a support shaft restraint which is movably supported between the shafts. And the support shaft 4 is one support plate) 131
A feed screw rotated at a required angle by a fixed motor and an encoder C is then screwed together, and this feed screw 36
The second support arm 14h moves axially according to the pitch between adjacent journals by the lead of the first support arm 14.
12, the interval is automatically adjusted.

30 is a spring for removing backlash provided at the tip of the support shaft 4.

Furthermore, the distance between the swing arm 14C and the first support arm can be automatically adjusted in the same manner. in this case,
The support shaft 27 is supported between a pair of support plates 13 so as to be movable in parallel with the support shaft, and one of the support plates 1
It is screwed together with a feed 9 screw field which is rotated at a required angle by a motor 31 and an encoder 32 fixed to the feed screw 3, and the shaft is moved according to the pitch between the adjacent journal part and pin part by the lead of the feed 9 screw. do. The path is a spring for removing backlash provided at the tip of the support shaft n.

Therefore, one aspect of the present invention is that the fillet roller 37 provided on the upper plate 15 and the lower plate 16, which are pivotally supported on the first support arm 14fZ, is used for the journal portion J, and the upper plate 19 is pivotally supported on the swinging arm 14c. and for the pin part P by the fillet rollers provided in the lower plate joint, and a configuration in which all the journal parts J5 and pin part P are filledet rolled as a set, and in addition to the above-mentioned journal part J and pin part P use. The structure consists of one set for the journal part JE (fillet on one side only) at the end of the crankshaft.

In the case of a configuration in which the journal part J and the pin part P are set as one set, fillet rollers 38 are pressed against the fillet parts at both ends of the journal part J, and the fillet rollers 38 are pressed against the fillet parts on both sides of the pin part P adjacent to the journal part J. Fillet roller 38
The main shaft 4 is rotated by the drive motor to rotate the crankshaft W. This rotation of the crankshaft W causes the swing arm 14I? Swinging and upper plate 1
9 and the lower plate 20, the fillet roller blades revolve following the pin part P, rotate on their own axis, and roll the fillet part of the pin part P, and the fillet rollers 37 of the upper plate 15 and the lower plate 16 The journal part is rolled at the same time.

When the fillet rolling of the adjacent journal part and pin part P is completed, the chuck 5 stops at the fixed position, and the upper plate 15, the lower plate 16 and the upper plate 1
9. The lower plate 20 is opened, and by the operation of the cylinders 7 and M for regulating the plate opening angle position, the upper plate 15 and the lower plate 16 are centered on the journal part J, and the upper plate 19 and the lower plate are also attached to the journal. The opening angle position Z is regulated by the same amount as the part JFt-center.

After that, the movable base 9 moves by a predetermined amount (
Pitch of adjacent journal parts) Journal part J to be fed and then rolled, and pin part P adjacent to this
is indexed to the position corresponding to . Thereafter, the above operation is repeated to fillet roll all the journal parts J and pin parts P.Next, in addition to the second support arm 14b, the journal part J, the pin part, and the journal part at the end of the crankshaft are added. JE
When the use (one side fillet only) is set as - group, fillet rolling of all journal parts and pin part P is performed in the same operation as described above. The upper plate 39 and the lower plate 40 of the second support arm 14h are left open, and fillet rolling of the journal part J, pin part P, and journal part holder is performed at the same time at the front end of the crankshaft W. It is.

In addition, for a crankshaft W in which the distance between the journal part J and the pin part P1 as well as the journal part positive is different, the second support arm 14b1 and the swing arm 14c are moved to the support shafts 27 and 29Y axes based on numerical control commands. Move and respond.

In the above-mentioned embodiment, an example was described in which the interval adjustment Z is performed automatically, but the interval adjustment can also be set manually depending on the type of crankshaft.

<Effects of the Invention> According to the present invention, the two sets of fillet rollers for rolling the journal part and the pin part are rolled by the rotation of the crankshaft by a pair of openable and closable plates supported on a movable base. Since the mask revolves and rotates on its own axis, there is no need for a mask crankshaft, and the troublesome work of changing setups when rolling different crankshafts is eliminated. This makes it versatile for a wide variety of crankshafts, and since the journal and pin parts are fillet rolled at the same time, the machining time is significantly shortened.

Furthermore, the journal having a fillet (Y) on only one side of the front end of the crankshaft also has a P-
The roller allows fillet rolling of other journal parts and pin parts at the same time, and there is an advantage that filleting of the journal part on the front side of the crankshaft can be performed efficiently and productivity can be improved.

[Brief explanation of the drawings] ゛Figure 1 is a front view of the device of the present invention, Figure 2 is a view of Figures 1 - ■
Figure 3 is an enlarged cross-sectional view taken along the line IN-I in Figure 2, Figure 4
The figure is a sectional view of a main part showing a fillet rolling state. 1...Bed, 2.3...Reference column, 4Il-main shaft, 5.Bone/chuck 5 e...Tail stock, 7.
...Guide base, 8...e guide rail, 9...Φ movable base, 10...feed motor, 11...ball screw, 12
・O・Nut, 13...Support plate, 14α...
First support arm, 14h...Second support arm, 14C
... Swinging arm, 15-@-upper plate, 16...
・Lower plate, 17... Support shaft, 18... Pressure cylinder, 19... Upper plate, 2... Spring lower plate, 21... Support shaft, n... Pressure cylinder, 37,
A・eI+fillet roller, 39・・book upper plate, 4011・・lower plate, 41・Φ・fillet roller, 42・・roller, W・・crankshaft,
J...Journal part, P@...Pin part, JE...Journal part. -Figure 4゛

Claims (2)

[Claims] (1) A movable base that can be moved along the axial direction of a crankshaft that is rotatably supported by a drive device in accordance with a numerical control command; A swing arm is movably supported, and a support member is supported on the movable table at a distance from the swing arm in the axial direction of the crankshaft. A pair of plates holding fillet rollers facing the fillet portion of the crankshaft are pivotally supported so as to be openable and closable, and a pair of plates holding fillet rollers facing the fillet portion of the pin portion of the crankshaft are pivotally supported on the swing arm so as to be openable and closable. A fillet rolling device characterized by: (2) A movable base that can be moved along the axial direction of the crankshaft rotatably supported by a drive device according to a numerical control command; The movable base includes a movably supported rocking arm, and a pair of support members supported on both sides of the rocking arm in the axial direction of the crankshaft, one of the support members having a fillet portion of a journal portion of the crankshaft. a pair of plates holding fillet rollers facing the fillet portion of the crankshaft are pivotally supported to be openable and closable;
The fillet rolling device further comprises a pair of plates holding fillet rollers facing one side of the fillet portion of the journal portion at the end of the crankshaft and pivotably supported on the other one of the support members so as to be openable and closable.