JP2803437B2 - Rolling device for fillet roll machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a fillet roll machine for performing a fillet roll process on a plurality of shaft portions of a work, and presses the shaft portion against a fillet roller while holding the shaft portion revolvably. The present invention relates to a rolling device.

[0002]

2. Description of the Related Art Conventionally, as a rolling device as described above, for example, it is used in a fillet roll machine for performing a fillet roll process on a plurality of journal portions and pins, which are shaft portions, of an engine crankshaft as a work. 6 and 7 show a front view and a side view.

[0003] This rolling device is adapted to correspond to the journal portion 1 and the pin portion 2 of the crankshaft.
Five journal section clamping mechanisms 3 and four pin section clamping mechanisms 4 as shaft section clamping means are provided alternately.
A roller holding arm 6 for holding two fillet rollers 5 for each processing portion located at one end or both ends of
An arm connecting hinge pin 8 as an arm connecting hinge, which has a shaft pressing arm 7 for pressing the journal 1 against the fillet roller 5 and swingably connects the arms 6 and 7, and a journal 1 A hydraulic cylinder 9 as arm swing urging means for sandwiching between the fillet roller 5 and the shaft pressing arm 7 and swinging the arms 6 and 7 with each other to perform fillet roll processing on the processed portion. The arm connecting hinge pin 8 is provided with the journal portion 1 accompanying the rotation of the crankshaft.
Upper support hinge pin as a connecting member support hinge portion of the fillet roll machine so as to allow the rotation of the fillet roll machine.
The arm 10 also serves as an arm support hinge pin as an arm support hinge for connecting the shaft pressing arm 7 to the other end of the connection member 11 whose one end is supported by 10.

Further, each pin portion holding mechanism 4 here
The roller holding arm 12 holds two fillet rollers 5 for each processing portion located at both ends of the pin portion 2.
And a shaft pressing arm 13 for pressing the pin portion 2 against the fillet roller 5.
An arm connecting hinge pin 14 as an arm connecting hinge for connecting the first and second parts 13 and 13 in a swingable manner, and the pin 2 is sandwiched between the fillet roller 5 and the shaft pressing arm 13, and the processed portion is subjected to fillet roll processing. To arm them 1
A hydraulic cylinder 15 as an arm swing urging means for swinging each of the arms 2 and 13 together;
14 is the other end of a connecting member 17 of the fillet roll machine, one end of which is supported by a lower supporting hinge pin 16 as a connecting member supporting hinge so as to allow the rotation of the pin 2 with the rotation of the crankshaft. The arm also serves as an arm support hinge pin as an arm support hinge portion for connecting the roller holding arm 12 to the roller.

[0005]

However, in such a conventional rolling device, since the arm connecting hinge pins 8 and 14 also serve as arm supporting hinge pins as arm supporting hinge portions as described above, the arm connecting hinge pins 8 and 14 are provided. The overlap of bearing members around the connecting hinge pin increases,
The thickness of each journal section clamping mechanism 3 and each pin section clamping mechanism 4 (the dimensions of the pinch mechanisms 3 and 4 in the axial direction of the journal section 1 and the pin section 2) increases,
Therefore, there is a problem that the arrangement interval of the clamping mechanisms 3 and 4 is also increased, and the method cannot be applied to fillet roll processing of a crankshaft in which the interval between the journal portion 1 and the pin portion 2 is narrow.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rolling device which advantageously solves the above-mentioned problems of the conventional device. The rolling device of the present invention comprises a plurality of shaft portions of a work. An arm connecting hinge for connecting a roller holding arm for holding a fillet roller and a shaft pressing arm for pressing the shaft against the fillet roller is used for a fillet roll machine for performing fillet roll processing on the fillet roller. An arm swing urging means for swinging, and a roller holding arm and the shaft pressing on the other end of a connecting member having one end supported by a connecting member supporting hinge provided at a fixed portion of the fillet roll machine. Arm supporting hinges for connecting at least one of the arms, and a plurality of shaft holding means, Wherein each shank clamping means, is characterized in that it has separated into the arm connecting hinge portion and said arm supporting hinge portion and the on different axes.

In the rolling device according to the present invention, the shaft holding means is positioned with respect to a position for holding the shaft.
It is further preferable that the arm supporting hinge is separated from the arm connecting hinge.

[0008]

In this rolling device, the arm swing urging means of each shaft holding means swings the roller holding arm and the shaft pressing arm connected by the arm connecting hinge to each other. A fillet roller and a shaft pressing arm held by a roller holding arm sandwich each shaft of the work, and the other end of a connecting member supported at one end by a connecting member supporting hinge of a fillet roll machine is connected to the other end of the connecting member. A shaft portion with respect to a fixed portion of a fillet roll machine so that an arm supporting hinge portion connecting at least one of a roller holding arm and the shaft portion pressing arm together with the connecting member allows the shaft portion to revolve with rotation of the work. The pinch means can be moved, and by these means, the shaft part of the rotating work is driven by other driving means of the fillet roll machine. Let-roll processing is performed.

Further, in this rolling device, since each shaft portion holding means has the arm connecting hinge portion and the arm supporting hinge portion separated, the overlap of the bearing members at each hinge portion is reduced, and The thickness of the shaft holding means is reduced. Therefore, according to this rolling device, since the arrangement interval of the shaft holding means can be reduced, the rolling device can also be applied to fillet roll processing of a work in which the interval between a plurality of shafts is narrow.

Further, in this rolling device, since the arm connecting hinge portion and the arm supporting hinge portion are separated from each other, the arm supporting portion is positioned with respect to the position of the shaft portion holding means for holding the shaft portion. If the hinge portion is separated from the arm connection hinge portion, the arm swinging urging means is located at a position where the shaft portion is clamped so that the shaft portion of the work can be clamped with a large force even if the biasing force of the arm swing biasing means is small. Even if the arm connection hinge is arranged close to the arm, the arm support hinge is separated from the position for holding the shaft, so that the range of movement of the shaft holding means due to the revolution of the shaft accompanying the rotation of the work is small. Therefore, the space occupied by the rolling device can be made compact, and the entire fillet roll machine can be made compact.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a rolling device according to the present invention applied to a fillet roll machine for performing a fillet roll process on a plurality of shaft portions, that is, a journal portion and a pin portion, of a crankshaft of an engine as a work, similarly to a conventional example. 2 is a side view showing a rolling device of the embodiment, in which 1 denotes a journal portion of the crankshaft, and 2 denotes a pin portion of the crankshaft.

The rolling device of this embodiment also has a five journal holding mechanism 20 as a shaft holding means and four pin holdings corresponding to the journal 1 and the pin 2 of the crankshaft. Each journal portion holding mechanism 20 has two fillet rollers 22 for each processing portion located at one end or both ends of the journal portion 1 at the tip end (the left end in FIG. 1). Roller holding arm 23 and journal unit 1
At its leading end (the left end in FIG. 1).
An arm connection hinge pin 26 as an arm connection hinge portion, which has a shaft pressing arm 24 for pressing the arm 23, 24 and swingably connecting the arms 23, 24 via a bracket 25; An arm (right end in FIG. 1) is connected to a rod-side end of the cylinder body and a tip end of the piston rod, and the arms 23 and 24 are swung by the advance and retreat of the piston rod. Hydraulic cylinder 27 as swing urging means
And

Further, each of the journal section clamping mechanisms 20 includes:
The other end of the connecting member 29, one end of which is supported by an upper supporting hinge pin 28 serving as a connecting member supporting hinge provided at a fixed portion of the fillet roll machine, is provided with a revolving motion of the journal 1 accompanying the rotation of the crankshaft. Arm support hinge pin 30 as an arm support hinge part, which connects the shaft pressing arm 24 so as to allow the arm support hinge pin 30 and the arm connection hinge pin 26 on different axes. Are provided separately.

Further, each pin portion holding mechanism 21 here
A roller holding arm 31 for holding two fillet rollers 22 at the front end (left end in FIG. 1) of two fillet rollers 22 for each processing portion located at both ends of the pin portion 2 of the crankshaft;
An arm connection that has a shaft pressing arm 32 that presses the pin portion 2 at the tip end portion (the left end portion in FIG. 1) against the fillet roller 22 and that swingably connects the arms 31 and 32 via a bracket 33. The rear ends of the arms 31 and 32 in order to clamp the arm connecting hinge pin 34 as a hinge portion and the pin portion 2 between the fillet roller 22 and the shaft pressing arm 32 and perform a fillet roll process on the processed portion. The rod-side end of the cylinder body and the distal end of the piston rod are connected to the arm (right end in FIG. 1), and the arms 3 are moved by the advance and retreat of the piston rod.
A hydraulic cylinder 35 is provided as arm swing urging means for swinging the first and the second 32.

Further, each of the pin holding mechanisms 21 has an L-shaped connecting member 37 supported at one end by a lower supporting hinge pin 36 serving as a connecting member supporting hinge provided at a fixing portion of the fillet roll machine. The other end also has an arm support hinge pin 38 as an arm support hinge that connects the roller holding arm 31 to allow the pin 2 to revolve with the rotation of the crankshaft. The arm support hinge pin 38 and the arm connection hinge pin 34 are provided separately on different axes.

In such a rolling device, the hydraulic cylinders 27 and 35 of each journal holding mechanism 20 and shaft holding mechanism 21 are connected to roller holding arms 23 and 31 and a shaft pressing arm 24 connected by arm connecting hinge pins. , 32 oscillate with each other, so that the fillet roller 22 and the shaft pressing arms 24, 32 held by the roller holding arms 23, 31 are connected to the journal 1 and the pin 2 of the crankshaft.
And the connecting members 29 and 37 swing with respect to the upper and lower supporting hinge pins 28 and 36 of the fillet roll machine, respectively, and the shaft pressing arm 24 and the roller holding arm 31 move with respect to the connecting members 29 and 37, respectively. Rocking,
Each journal portion holding mechanism 20 with respect to a fixed portion of the fillet roll machine 20 is allowed to revolve each journal portion 1 and pin portion 2 with the rotation of the crankshaft.
And the shaft portion clamping mechanism 21 can be moved, so that each journal portion 1 and pin portion 2 of the crankshaft, which is driven by another driving means (not shown) of the fillet roll machine and rotates, can be subjected to fillet roll processing. Will be applied.

Moreover, in this rolling device, since each journal portion holding mechanism 20 and shaft portion holding mechanism 21 have the arm connecting hinge pins 26 and 34 and the arm supporting hinge pins 30 and 38 separated from each other, the periphery of the hinge pins In,
The overlap between the arms 24 and 31 which are bearing members and the ends of the brackets 26 and 33 and the connecting members 29 and 37 which are also bearing members is reduced, so that the journal holding mechanism 20 and the shaft holding mechanism 21 The thickness (the dimensions of the pinch mechanisms 20, 21 in the axial direction of the journal portion 1 and the pin portion 2) is reduced. Therefore, according to the rolling device of this embodiment, the interval between the journal portion pinching mechanism 20 and the shaft portion pinching mechanism 21 can be reduced, so that the distance between the journal portion 1 and the pin portion 2 is small. It can also be applied to shaft fillet roll processing.

Incidentally, since the pin portion 2 is greatly offset from the axis of the crankshaft, its revolving range is significantly larger than the revolving range of the journal portion 1. As in the conventional device, the arms 31 and 32 are connected to the journal holding mechanisms 20 to reduce the range of movement of the pin 2 due to the revolution.
Therefore, even if the urging force of the hydraulic cylinder 35 is small, the pin portion 2 can be pinched with a sufficiently large force by the leverage principle.
The distance between the position at which the journal portion 1 is held and the arm connecting hinge pin 34 is significantly shorter than the distance between the position at which the journal portion 1 is held and the arm connecting hinge pin 26.

When the distance between the position where the pin portion 2 is clamped and the arm connecting hinge pin 34 is short as described above, the arm connecting hinge pin as in the conventional device shown in FIG.
In the configuration in which the roller holding arm 12 is connected to the other end of the connecting member 17 by 14 and the arm connecting hinge pin 14 also serves as the arm supporting hinge pin, as shown in FIG. 8, the crank driven by the other driving means is used. The pin portion 2 revolves based on the rotation of the shaft, and the center axis of the pin portion 2 is set to a predetermined axis L.
When it moves to the positions of C ₁ , C ₂ , C ₃ and C ₄ , the connecting member 17 swings and its arm connecting hinge pin
The center axis of 14 moves around the center position E of the lower support hinge pin 16 to the positions of A ₁₁ , A ₁₂ , A ₁₃ and A ₁₄ , and the roller holding arm 12 swings with respect to the connecting member 17, whereby the air is released. The predetermined reference portion on the cylinder 15 is A ₂₁ ,
Will be moved to the position of A _22, A ₂₃ and A _24, as a result, the roller holding arm of each pin portions sandwiching mechanism 4
The moving range of the hose 12 to the hydraulic cylinder 15 is widened while the moving range of the shaft 12 and the shaft pressing arm 13 is widened, and the space occupied by the rolling device is increased.

In order to avoid such inconveniences, in each of the pin holding mechanisms 21, in combination with the separation of the arm supporting hinge pin 38 and the arm connecting hinge pin 34, as shown in FIG.
A straight line connecting the axis L and the arm support hinge pin 38,
The L-shaped connecting member 37 is used so that an angle α between a straight line connecting the arm supporting hinge pin 38 and the lower supporting hinge pin 36 is 90 °, and the arm The support hinge pins 38 are arranged sufficiently farther apart than the arm connection hinge pins 34.

Accordingly, in each of the pin holding mechanisms 21, the pin 2 revolves based on the rotation of the crankshaft, and the center axis of the pin 2 is rotated around the predetermined axis L by C ₁ , C ₂ , C ₂ .
_When the connecting member 37 swings to the positions C ₃ , C ₄ , C ₅ and C ₆ in that order, the center axis of the arm supporting hinge pin 38 moves around the center position E of the lower supporting hinge pin 36.
₁₁ , B ₁₂ , B ₁₃ , B ₁₄ , B _15, and B ₁₆ are moved in that order, and the roller holding arm 31 swings with respect to the connecting member 37, so that a predetermined reference portion on the air cylinder 35 is formed. Moves to the positions of B ₂₁ , B ₂₂ , B ₂₃ , B ₂₄ , B ₂₅ and B ₂₆ in that order, and as a result,
According to the pin holding mechanism 21, the moving range of the roller holding arm 31 and the shaft pressing arm 32, and the moving range of the hose pipe to the hydraulic cylinder 35, the arm connecting hinge pin 34 and the arm supporting hinge pin. As compared with the case where the rolling device is also used, the space occupied by the rolling device can be made compact, and the entire fillet roll machine can be made compact.

FIG. 4 shows a straight line connecting the arm support hinge pin 38 with the relative positional relationship between the axis L and the center position E of the lower support hinge pin 36, and the arm support hinge pin 38 and the lower support hinge pin 36. 36 shows a case where the position of the arm support hinge pin 38 on the roller holding arm 31 and the length of the connecting member 37 are changed so that the angle α between the straight line connecting to the line 36 and the line α becomes 80 ° and 110 °, respectively. In the state of the angle α, the pin 2
Revolves and the center axis of the pin portion 2 moves to the positions C ₁ , C ₂ , C ₃ and C ₄ around the predetermined axis L, the connecting member 37 swings and the arm supporting hinge pin 38 When the center axis is around the center position E of the lower support hinge pin 36, α
= 80 ° to the positions of D ₁₁ , D ₁₂ , D ₁₃ and D ₁₄ , and α = 110 ° to the positions of E ₁₁ , E ₁₂ , E ₁₃ and E ₁₄ , and their connecting members 37.
When the roller holding arm 31 swings, the predetermined reference portion on the air cylinder 35 is shifted to D for α = 80 °.
_21, the position of the D _22, D ₂₃ and D _24, also for alpha = 110 ° will move each to the position of E _21, E _22, E ₂₃ and E _24. Therefore, when the angle α is in the range of 80 ° to 110 °, as is apparent from FIG.
In addition, the moving range of the shaft pressing arm 32 can be made sufficiently small.

On the other hand, FIG. 5 also shows a straight line connecting the arm support hinge pin 38 with a fixed relative positional relationship between the axis L and the center position E of the lower support hinge pin 36, and the arm support hinge pin 38 This shows a case where the position of the arm support hinge pin 38 on the roller holding arm 31 and the length of the connecting member 37 are changed so that the angle α between the straight line connecting the lower support hinge pin 36 and the straight line becomes 130 °, Such angle α
In this state, the pin portion 2 revolves based on the rotation of the crankshaft, and the center axis of the pin portion 2 moves around the predetermined axis L by C.
_1, when moving to the position of the C _2, C ₃ and C ₄ are
When the connecting member 37 swings, the center axis of the arm supporting hinge pin 38 is moved around the center position E of the lower supporting hinge pin 36 by F ₁₁ and F ₁₁ .
_12, F ₁₃ and the roller retaining arms 31 to the connecting member 37 as well as moved to the position of F ₁₄ is swung, the predetermined reference position is F ₂₁ on the air cylinder 35, F _22, F
It will move to the position of ₂₃ and F _24. Therefore, the angle α is 1 according to the relative positional relationship between the axis L and the center position E.
When the angle is increased to 30 °, the moving range of the roller holding arm 31 and the shaft pressing arm 32 becomes relatively large as is apparent from the drawing.

Although the present invention has been described above with reference to the illustrated examples, the present invention is not limited to the above-described example. Instead, an L-shaped connecting member 37 similar to the connecting member 37 is used, and the arm supporting hinge pin 30 is arranged at a position sufficiently farther than the arm connecting hinge pin 26 from the position where the journal portion 1 is sandwiched. Is also good.

[0025]

As described above, according to the rolling device of the present invention, since each shaft holding means has the arm connecting hinge and the arm supporting hinge separately, the overlap of the bearing members at each hinge is reduced. Therefore, the thickness of each shaft portion holding means can be reduced, and therefore, the arrangement interval of the shaft portion holding means can be reduced, so that the present invention can be applied to fillet roll processing of a work in which a plurality of shaft portions have a narrow interval between each other. it can.

If the arm supporting hinge portion is separated from the arm connecting hinge portion of the shaft portion holding means with respect to the position of holding the shaft portion, the shaft holding portion of the workpiece is held at the position for holding the shaft portion of the work. Even if the arm connection hinge is arranged close to the arm, the arm support hinge is separated from the position for holding the shaft, so that the range of movement of the shaft holding means due to the revolution of the shaft accompanying the rotation of the work is small. Therefore, the space occupied by the rolling device can be made compact, and the entire fillet roll machine can be made compact.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a rolling device of the present invention applied to a fillet roll machine for performing a fillet roll process on a journal portion and a pin portion of a crankshaft of an engine.

FIG. 2 is a side view showing the rolling device of the embodiment.

FIG. 3 is an explanatory diagram showing an operation state of the rolling device of the embodiment.

FIG. 4 is an explanatory diagram showing an operation state of a modification of the rolling device of the embodiment.

FIG. 5 is an explanatory diagram showing an operation state of another modification of the rolling device of the embodiment.

FIG. 6 is a front view showing a conventional rolling device applied to a fillet roll machine that performs fillet roll processing on a journal portion and a pin portion of a crankshaft of an engine.

FIG. 7 is a side view showing the conventional rolling device.

FIG. 8 is an explanatory diagram showing an operation state of the conventional rolling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Journal part 2 Pin part 20 Journal part holding mechanism 21 Pin part holding mechanism 22 Fillet roller 23, 31 Roller holding arm 24, 32 Shaft pressing arm 26, 34 Arm connecting hinge part 27, 35 Hydraulic cylinder 28, 36 Connecting member support Hinge 29,37 Connecting member 30,38 Arm support hinge

Claims (2)

(57) [Claims] A roller holding arm (23, 31) for holding a fillet roller (22) and said shaft portion are used in a fillet roll machine for performing a fillet roll process on a plurality of shaft portions (1, 2) of a work. Arm connecting hinges (26, 34) for connecting the shaft pressing arms (24, 32) pressed against the fillet roller, and arm swing urging means (27, 35) for swinging the arms together; A connecting member (29, 29) having one end supported by a connecting member supporting hinge portion (28, 36) provided at a fixing portion of the fillet roll machine.
37) a plurality of shaft holding means (20, 2) having, at the other end thereof, an arm support hinge (30, 38) for connecting at least one of the roller holding arm and the shaft pressing arm.
In the rolling device provided with 1), each of the shaft pinching means (20, 21) moves the arm connecting hinge section (26, 34) and the arm supporting hinge section (28, 36) on different axes. A rolling device for a fillet roll machine, wherein the rolling device is provided separately. 2. The arm support hinge part (38) is spaced apart from the arm connection hinge part (34) with respect to a position of the shaft part holding means (21) for holding the shaft part (2). The rolling device for a fillet roll machine according to claim 1, wherein: