JPH079228A - Window processing machine - Google Patents

Abstract

(57) [Summary] [Object] To provide a window hole processing machine for processing both side walls of a window hole of a workpiece, targeting the workpiece having a plurality of window holes provided at predetermined intervals. Reduces the process of window hole processing and improves processing efficiency. [Structure] A holding device 12 is provided for holding a workpiece and rotating it by an angle corresponding to an interval between window holes. A first processing device 13 for processing one side wall of the window hole of the workpiece is provided. Second processing device 14 for processing the other side wall of the window hole of the workpiece
To provide. First processing device 13 and second processing device 14
Is arranged at a position deviated from the holding device 12 by an angle corresponding to the distance between the window holes of the workpiece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window hole processing machine for processing both side walls of a plurality of window holes provided around a workpiece at predetermined intervals.

[0002]

2. Description of the Related Art Conventionally, when processing both side walls of a plurality of window holes provided around a workpiece at predetermined intervals, a window hole processing machine for processing one side wall of the window hole of the workpiece, There is a need for a window hole processing machine that processes the other side wall of the window hole of the workpiece.

Each window hole processing machine is provided with a table for clamping a workpiece, and a processing device for processing the side wall of the window hole of the workpiece is arranged on the side portion of the table.

When a hole is drilled in a workpiece, first, the workpiece is set on the table of one of the window punching devices, and one sidewall of one window hole of the workpiece is set by the milling device. Each time the processing of one window hole is completed, the workpiece on the table is rotated by an angle corresponding to the interval between the window holes, and the processing apparatus sequentially processes the window holes of the workpiece. . In this way, when the processing of one side wall of the window hole of the workpiece is completed, the workpiece is removed from one window hole processing apparatus and set on the table of the other window hole processing apparatus, the same as above. Then, the other side wall of the window hole of the processed portion is sequentially processed by the processing device.

[0005]

In the conventional window hole processing machine, for example, if the workpiece has three window holes, three steps are required for cutting one side wall of the window hole, and the other side. There is a problem in that three steps are required to cut the side wall of the above, a total of six steps are required, and a step of replacing the work piece is required, so that there are many steps and the processing efficiency is poor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a window hole processing machine capable of reducing the process of window hole processing and improving the processing efficiency.

[0007]

The present invention relates to a window hole processing apparatus for processing both side walls 5a, 5b in the circumferential direction of a plurality of window holes 5 provided at a predetermined interval around a workpiece 1. A holding device 12 for holding the workpiece 1 and rotating it by an angle corresponding to the interval of the window holes 5, and a first processing device for processing one side wall 5a of the window hole 5 of the workpiece 1. 13 and a second processing device 14 for processing the other side wall 5b of the window hole 5 of the workpiece 1; the first processing device 13 and the second processing device 14 include the holding device 12 Is arranged at a position deviated by an angle corresponding to the interval between the window holes 5 of the workpiece 1 with respect to the center.

[0008]

In the present invention, the work piece 1 is held by the holding device 12, and one side wall 5a of the window hole 5 is processed by the first processing device 13 corresponding to one window hole 5 of the work piece 1. At the same time, the second side wall 5b of the window hole 5 is processed by the second processing device 14 corresponding to the other window hole 5 of the work piece 1, and the holding device 12 is formed at each completion of the processing.
Then, the workpiece 1 is rotated by an angle corresponding to the interval between the window holes 5, and the window holes 5 adjacent to the processed window holes 5 are sequentially processed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of one embodiment of the window hole processing machine of the present invention will be described below with reference to the drawings.

First, the workpiece will be described with reference to FIG.
As shown in FIGS. 8 to 8, the workpiece is, for example, a cylindrical housing 1 of a differential gear, cylindrical portions 2 are coaxially formed at both ends of the housing 1, and three attachments are provided at one end of the periphery. A flange portion 4 having holes 3 at equal intervals is formed, and three window holes 5 are formed in the periphery at equal intervals. In addition, each mounting hole 3 of the flange portion 4
And the positions of the window holes 5 are in a predetermined correspondence relationship.

FIG. 1 shows a window processing machine, in which a holding device 12 is arranged at the center of a base 11, and a first processing device 13 and a second processing device 14 are provided on both sides of the holding device 12 as a center. Is provided. The first processing device 13 and the second processing device 14 have the window 5 of the workpiece 1 centered on the holding device 12.
Are arranged at a position offset by an angle corresponding to the interval of, that is, 120 °.

As shown in FIGS. 1 and 5, the holding device 12 is provided with a conical table body 21.
A center 22 for fitting and centering the lower cylindrical portion 2 of the housing 1 is provided at the center of the 21 and three columns 23 are provided upright in the vicinity of the peripheral edge of the table body 21. A positioning projection 24 into which the mounting hole 3 of the housing 1 is fitted is formed to project. Then, the table body 21 is rotated by the motor (not shown) by an angle corresponding to the interval between the window holes 5 of the housing 1, that is, by 120 °.

Further, the holding device 12 is provided with a clamp mechanism 25. In this clamp mechanism 25, a column 26 is erected on a side portion of the table body 21, and a rod 27 is rotatably driven from an upper end of the column 26. A horizontal arm 28 is attached to this rod 27.
A clamp body (not shown) attached to the upper portion of the housing 1 is rotatably attached to the lower end of the horizontal arm 28.

The first processing device 13 is shown in FIGS.
As shown in FIG. 5, the center unit 22 is mounted on a moving unit 31 that moves in the head moving direction to move toward and away from the center. In the moving unit 31, a moving table 32 is movably provided on the guide table 33, and the moving table 32 is moved by a motor (not shown). The position of the moving table 32 in the direction orthogonal to the head moving direction of the moving table 32 is adjusted by the adjusting mechanism 34.

As shown in FIGS. 2 to 4, a base portion 41 is fixed on the moving base 32, and a head unit 42 is attached to the end surface of the base portion 41 on the holding device 12 side. .

The base 41 is box-shaped and has a circular opening on one side.
45 is formed, a groove 46 is formed in communication with the upper and lower parts of the opening 45 toward the head direction, and an opening 47 is formed on the other side. A bearing unit 48 is attached by closing the opening 47, a rotating shaft 49 is rotatably supported by the bearing unit 48, and a pulley 50 located in the opening 45 is attached to one end of the rotating shaft 49. Pulley on the other end of 49
51 is installed. A motor 52 is mounted on top of the base 41.
The belt 55 is stretched between the pulley 54 and the pulley 51 attached to the drive shaft 53 of the motor 52. An adjusting mechanism 56 is connected to the bearing unit 48,
The adjusting mechanism 56 adjusts the position of the bearing unit 48 in the head moving direction, and adjusts the tension state of the belt 74 stretched around the pulley 50, which will be described later.

The head unit 42 is provided with a pair of left and right cases 61 and 62, and a head portion 63 that can enter into the window hole 5 of the housing 1 is projectingly formed at the tips of the cases 61 and 62. ing. The pair of cases 61 and 62 are fastened and integrated by a plurality of bolts 60.

Between the pair of cases 61 and 62, a gear 64 arranged on the head portion 63, a gear 65 meshing with the gear 64,
The gear 66 that meshes with the gear 65 and the rotary shaft 67,
It is rotatably supported by 68 and 69. A side cutter 70 disposed on one side of the head portion 63 is fixed to one end of the rotating shaft 67. By this side cutter 70, one side wall 5a (shown in FIGS. 6 to 8) of the window hole 5 of the housing 1 is cut.

One end of the rotary shaft 69 projects into an opening 71 formed in the side portion of one case 61, and a pulley 72 is fixed to one end of the rotary shaft 69. It should be noted that groove portions 73 are formed so as to communicate with the upper and lower portions of the opening 71 of the one case 61 in the direction of the base portion 41. Then, the belt 74 is stretched between the pulley 72 and the pulley 50, the rotational driving force of the motor 52 is transmitted to the side cutter 70, and the side cutter 70 is rotated. The belt 74 is rotated through the groove 46 of the base 41, the groove 73 of the case 61, and the grooves 96 and 97 described later.

The head unit 42 includes a turning position adjusting mechanism 81 and a vertical position adjusting mechanism 82. In the turning position adjusting mechanism 81, a connecting member 83 is fixed to the base 41 by a plurality of bolts 84, and a turning member 86 is rotatably attached to the connecting member 83 about a center shaft 85. . The rotating member 86 is configured such that nuts 88 are screwed into the tips of a plurality of bolts 87 that are inserted into the recesses 83a of the connecting member 83 from the rotating member 86 side to tighten and fix the bolts 87 and the connecting member. 83
Also, the turning position can be adjusted by the gap set between the turning member 86 and the insertion hole.

In the vertical position adjusting mechanism 82, a guide member 89 having a substantially trapezoidal cross section is formed on the rotating member 86 so as to project therefrom.
A fitting portion 90 having a substantially trapezoidal cross section, which is formed in the cases 61 and 62 of the head unit 42, is fitted in 89 so as to be vertically slidable. A spacer is provided between the guide part 89 and the fitting part 90 of the case 62.
91 is fitted, and the gap adjusting bolt 92 screwed from the side surface of the case 62 is in contact with the spacer 91. Case 61, 62
A bracket 93 is fixed on the upper surface of the guide 93, and a vertical adjustment screw 94 rotatably attached to the bracket 93 is attached to the guide portion 89.
It is screwed to. Then, by rotating the vertical adjustment screw 94, the head unit 42 is rotated with respect to the rotating member 86.
The height position of is adjusted.

Grooves 96 and 97 through which the belt 74 passes are formed on one side of the connecting member 83 and the rotating member 86.
A cover 98 is attached by closing the openings 45, 71 and the grooves 46, 73, 96, 97.

The second processing device 14 is the first processing device.
The structure is the same except that it is formed symmetrically with respect to 13, and a description thereof will be omitted. Therefore, the side cutter 70 of the second processing device 14 has the other side wall 5 b of the window hole 5 of the housing 1.
A cutting process (shown in FIGS. 6 to 8) is performed.

An operating unit 101 and a control unit 102 are attached to the base 11.

Next, the operation of this embodiment will be described.

First, in order to set the housing 1 on the holding device 12, with the clamp mechanism 25 retracted, as shown in FIG. The mounting hole 3 of the portion 4 is fitted into the positioning protrusion 24 of the column 23. With this set, the center 22 centers the housing 1, and the positioning protrusion 24 positions the housing 1 in the circumferential direction.

Then, the clamp mechanism 25 is operated to rotate the horizontal arm 28 to move the clamp body at the lower end of the horizontal arm 28 above the housing 1, and lower the clamp body to move the housing 1 downward. Press and clamp to.

When the housing 1 is set in the holding device 12, the two window holes 5 of the housing 1 are connected to the processing devices 1 respectively.
It is positioned at a predetermined machining position with respect to 3 and 14. This is because the stop position of the table body 21 of the holding device 12 is set in each processing device.
Because it corresponds to 13 and 14.

Next, the processing devices 13 and 14 are simultaneously operated to perform the first step of processing the window hole as shown in FIG.
That is, the motor 52 of each of the processing devices 13 and 14 is driven to rotate the side cutter 70, the moving unit 31 moves the head unit 42 toward the housing 1, and the head unit 42 is moved.
63 is inserted into the window 5 of the housing 1 and the side cutter
At 70, the side wall of the window hole 5 is cut. At this time, the first processing device 13 cuts one side wall 5a of the window hole 5, and the second processing device 14 cuts the other side wall 5b of the window hole 5.

After the cutting process is completed, the head unit 42 of each of the processing devices 13 and 14 is retracted, and the head portion 63 is moved to the housing 1.
After removing from the window hole 5 of the
6 is rotated in the direction of the arrow in FIG. 6 by an angle corresponding to the distance between the window holes 5 of the housing 1, that is, 120 °, and the housing 1 is cut by the processing devices 13 and 14 as shown in FIG.
The window hole 5 adjacent to the window hole 5 is arranged for each of the processing devices 13 and 14.

Then, the processing devices 13 and 14 are simultaneously operated to perform the second step of processing the window hole, as shown in FIG.
In this second step, the cutting process is performed similarly to the first step,
After the cutting process is completed, the table body 21 of the holding device 12 is rotated in the direction of the arrow in FIG. 7 by an angle corresponding to the interval between the window holes 5 of the housing 1, that is, 120 °, and as shown in FIG. Window hole 5 of the housing 1 cut in 14
The window hole 5 next to is arranged for each processing device 13, 14.

Then, the processing devices 13 and 14 are simultaneously operated to perform the third step of processing the window hole as shown in FIG.
In this third step, cutting is performed as in the first step and the second step.

As described above, the housing 1 is manufactured in three steps.
Both side walls 5a and 5b of all the window holes 5 can be cut.

When the third step of window processing is completed, the clamp mechanism 25 is actuated to raise the clamp body at the lower end of the horizontal arm 28 and move the horizontal arm 28 to the side retracted position. The housing 1 can be taken out.

As described above, when cutting both side walls 5a and 5b of the three window holes 5 of the housing 1, one side wall 5a of the window hole 5 is cut by the first processing device 13, By cutting the other side wall 5b of the window hole 5 with the second processing device 14 and rotating the housing 1 to sequentially cut each window hole 5, both side walls of all the window holes 5 in three steps. 5a and 5b can be cut, the process can be halved compared to the conventional one, and the processing efficiency can be improved.

Next, the position adjustment of the head unit 42 with respect to the window hole 5 of the housing 1 will be described. The head unit 42 is moved and adjusted in the direction orthogonal to the head moving direction by the adjusting mechanism 34 of the moving table 32 in accordance with the lateral width of the window hole 5 of the housing 1. The vertical adjusting screw 94 of the vertical position adjusting mechanism 82 is rotated in accordance with the height of the window hole 5 of the housing 1 to move and adjust the head unit 42 in the vertical direction with respect to the base portion 41 side. Side walls 5a, 5b of the window hole 5 of the housing 1
According to the angle of the surface, the plurality of bolts 87 of the rotation position adjusting mechanism 81 are loosened to adjust the angle of the head unit 42 with respect to the base 41 side.

[0037]

According to the present invention, the first processing device and the second processing device are arranged at positions offset by an angle corresponding to the intervals of the window holes of the workpiece with respect to the holding device for holding the workpiece. With the processing device, the one side wall and the other side wall of the window hole of the workpiece are respectively processed, and the workpiece is rotated by an angle corresponding to the interval between the window holes by the holding device each time the processing is completed,
Since the window holes adjacent to the processed window hole are sequentially processed, the window hole processing step can be reduced and the processing efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a window hole processing machine of the present invention.

FIG. 2 is a side view of the processing apparatus of the above embodiment.

FIG. 3 is a plan view of the processing apparatus according to the above embodiment.

FIG. 4 is a cross-sectional view of a processing apparatus of the above embodiment.

FIG. 5 is a side view of a part of the working state of the above embodiment.

FIG. 6 is an explanatory diagram of a first step of processing a window hole according to the above embodiment.

FIG. 7 is an explanatory diagram of a second step of processing a window hole according to the above embodiment.

FIG. 8 is an explanatory diagram of a third step of processing a window hole according to the embodiment.

[Explanation of symbols]

 1 Housing as Workpiece 5 Window Holes 5a, 5b Side Wall 12 Holding Device 13 First Processing Device 14 Second Processing Device

Claims (1)

[Claims] 1. A window hole processing device for processing both side walls in the circumferential direction of a plurality of window holes provided around a workpiece at predetermined intervals, the window hole holding apparatus holding the workpiece and spacing between the window holes. And a first processing device for processing one side wall of the window hole of the workpiece, and a second processing device for processing the other side wall of the window hole of the workpiece. A machining device, wherein the first machining device and the second machining device are arranged at positions that are deviated from each other with respect to the holding device at an angle corresponding to an interval between window holes of the workpiece. Window hole processing machine.