JPH0699341A - Work processing device - Google Patents

Abstract

(57) [Summary] [Purpose] Without being affected by the work thickness error,
To obtain a work processing device capable of accurately processing a work. A support member 5 having a reference surface 50 that comes into contact with a portion of the throw-away tip 46 on the side of the machined surface excluding the machined portion of the throw-away tip 46.
2, work transfer means for transferring the throw-away tip 46 to a predetermined processing position, work holding means for bringing the throw-away tip 46 into contact with the reference surface 50, and the reference surface 5.
And a grinding wheel 58 that performs grinding with 0 as a position reference.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work processing apparatus used for grinding a breaker into a flat throwaway chip.

[0002]

2. Description of the Related Art FIGS. 5 to 8 show a flat throw-away tip (hereinafter referred to as a "tip") 2 having breakers 4 of various shapes. The breaker 4 shown in FIG. The breaker 4 shown in FIG. 6 is called a lead type, the breaker 4 shown in FIG. 7 is a fall type, and the breaker 4 shown in FIG. 8 is called a two-stage type.

Chip 2 having breaker 4 as described above
In the state where the breaker is not formed, for example, as shown in FIG.
As shown in, the sheets are sent out one by one. Then, the rake angle θ, the land width h1, the breaker width h2, the groove depth d1 and the like are adjusted to predetermined values by the grinding wheel 8 having the abrasive grain portion 6 as shown in FIG. Grinding process will be performed.

As described above, the breaker 4 is attached to the chip 2.
In the conventional grinding device (work processing device), as shown in FIG. 11, the chip 2 is mounted and fixed on the reference surface 10a of the base 10 and then the cutting grindstone. The breaker 4 is ground while the position of the breaker 8 is controlled in the X-axis, Y-axis, and Z-axis directions with respect to the reference surface 10a.

At this time, the processed portion (processed portion) of the chip 2
Is the upper surface side portion of the tip 2, the position control of the grinding wheel 8 is performed in consideration of the thickness ht of the tip 2 with respect to the reference surface 10a. Therefore, in the conventional work processing apparatus, if the thickness ht of the work 2 has an error, the error will appear in the processing of the breaker 4 as it is, and the processing of the work 2 may be inaccurate. The present invention is
The object is to solve the above problems.

[0006]

A work machining apparatus according to the present invention comprises a support member having a reference surface for contacting a substantially flat plate-shaped work with a machining surface side portion excluding a machining portion of the work, A work transfer unit that transfers the work to a predetermined position with respect to the reference surface of the support member, and a work holding unit that brings a portion of the work on the processing surface side into contact with the reference surface, and the reference surface is used as a position reference. As a result, a predetermined processing is performed on the work.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show a work processing apparatus according to an embodiment of the present invention, which is for cutting a chip (work) with a breaker. In these figures, reference numeral 12 is an upper substrate fixedly arranged with respect to the machine body, and in the central portion thereof, as shown in FIG. 2, a substantially triangular hole portion 14 having rounded corners is seen. Has been formed.

Inside the hole 14, a rotary moving table 16 having a substantially disk shape is arranged. A spline shaft 18 is integrally fixed to the center of the lower part of the rotary movement table (hereinafter referred to as “table”) 16, and the outer peripheral portion of the spline shaft 18 is rotated together with the spline shaft 18 and the spline shaft 18 is integrally rotated. A tubular member 20 is arranged so as to be movable up and down relatively to 18.

A bearing 2 is provided on the outer peripheral portion of the tubular member 20.
A moving member 24 is arranged via the elements 2 and 22. The moving member 24 is supported so as to be movable in the horizontal direction (arrows (a) and (b) directions) along the guides 26, 26, and also via the connecting member 28, an air cylinder 30 (corresponding to a work transfer means). ) Is connected to the piston 32 of
As a result, the table 16 can be driven in the horizontal direction.

A wheel 3 is provided at the rear end of the tubular member 20.
4 is integrally fixed to the moving member 24, and a pulse motor 38 is integrally fixed to the moving member 24 via a bracket 36. The wheel 40 mounted on the output shaft of the pulse motor 38 and the wheel 34 are The timing belt 42 is wound in between. And the pulse motor 3
The rotary drive table 16 can be driven to rotate around its axis by the drive of FIG.

A jig plate 44 is fixedly mounted on the table 16. The jig plate 44 is formed such that the plate thickness thereof is thinner than that of the chip 46 placed on the table 16, and the shape of the chip 46 (in this embodiment, a regular shape in the case of the present embodiment) is formed in the central portion thereof as shown in FIG. An insertion hole 48 that is slightly larger than the tip 46 is formed in accordance with the triangular shape.

On the other hand, above the upper substrate 12, a support member 52 having a reference surface 50 formed on the lower surface is provided with the reference surface 50 being separated from the upper surface of the upper substrate 12 by a predetermined distance. It is fixedly provided with respect to. As shown in phantom in FIG. 2, the support member 52 extends in the direction substantially orthogonal to the arrow (a) and (b) directions in the substantially central portion of the hole 14 in a plan view.

A chip 46 is provided on the upper substrate 12.
A lateral pressing plate 56 having a concave portion 54 formed on the side surface of the upper substrate 12 is fitted and fixed to the upper substrate 12. Then, above the lateral pressing plate 56, the above-mentioned FIG. 10 and FIG.
A grinding wheel 58 similar to that shown in FIG. The position of the grinding wheel 58 is controlled in the triaxial directions with the reference surface 50 as a reference.
A is rotationally driven to grind the breaker on the chip 46.

An air cylinder 60 (corresponding to a work holding means) is disposed below the side pressing plate 56.
The piston 62 is configured to be able to drive up and down. The piston 62 urges the lower end portion 18a of the spline shaft 18 upward when the tip 46 is conveyed to the processing position together with the table 16 to move the tip 46 to the reference plane 50.
It is for abutting against.

In the work processing apparatus having the above structure,
When grinding the breaker for the chip 46, first, the air cylinder 30 is driven to move the table 16
Is moved to the chip mounting position (the position shown by the solid line in FIG. 1). At this time, the insertion hole 48 of the jig plate 44 is at a position not overlapping the support member 52 in plan view. Then, in this state, the chip holding arm 6 as shown in FIG.
The chip 46 whose breaker has not been machined is carried into the insertion hole 48 by using the carrying robot 66 having 4 or the like.
At this time, the chip 46 to be processed is placed in the insertion hole 48 in a state where the upper surface portion of the chip 46 is exposed upward from the upper surface of the jig plate 44.

Next, the pulse motor 38 is driven to rotate the table 16 by a predetermined angle so that the corner portion of the tip 46 is fitted in the recess 54 of the lateral holding plate 56. At the same time, the air cylinder 30 is driven to drive the moving member 24 in the arrow (a) direction to move it to the position shown by the phantom line in FIG. As a result, the side surface of the chip 46 is supported by the lateral pressing plate 56, and the chip 46 is positioned in the horizontal direction.

Next, the air cylinder 60 is driven to urge the tip 46 upward, and the upper surface (a part thereof) of the tip 46 is moved to the reference plane 5.
It is pressed to 0 with a predetermined pressure. As a result, the chip 46 is positioned in the thickness direction and is completely fixed. Thereafter, while controlling the position of the grinding wheel 58 three-dimensionally, the abrasive grain layer 58a is rotationally driven to grind a predetermined breaker on the processing portion of the chip 46 exposed from between the supporting member 52 and the lateral pressing plate 56. To process.

Therefore, according to the work machining apparatus as described above, the tip 46 is ground with the reference surface 50 contacting the machined side of the tip 46 as a position reference, and the positioning control of the grinding wheel 58 is controlled. Has no dependence on the thickness of the. Therefore, the chip 46 can be accurately processed without being affected by the thickness error of the chip 46, and the processing accuracy and work efficiency can be improved.

Further, if the air cylinder lid 60 is provided with a position sensor for detecting the amount of up and down movement of the piston 62, the presence or absence of a chip on the table 16 can be easily detected.

Further, the jig plate 44 is provided on the jig plate 44.
By providing identification means such as an identification mark according to the shape of the chip to be placed on top and providing identification means (optical sensor, etc.) corresponding to the identification means on the machine side, program control according to the shape of the chip can be performed. It is also possible to further improve work efficiency.

Incidentally, the jig plate 44 and the lateral pressing plate 56.
Needless to say, the shape can be changed to various shapes according to the shape of the chip 46 to be processed.

[0022]

As described above, the work machining apparatus according to the present invention has a support member having a reference surface that abuts a substantially flat plate-shaped work on the side of the work surface other than the work site. And a work transfer means for transferring the work to a predetermined position with respect to the reference surface of the support member, and a work holding means for bringing a portion of the work on the processing surface side into contact with the reference surface. Since the predetermined processing is performed by the above, the work can be accurately processed without being affected by the thickness error of the work, and the processing accuracy and work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view showing a work processing apparatus according to an embodiment of the present invention.

FIG. 2 is a view of the workpiece processing apparatus of FIG. 1 as seen from the direction of arrow II.

FIG. 3 is a view of the workpiece processing apparatus of FIG. 1 viewed from a III-III line direction.

FIG. 4 is a diagram for explaining a conveyance state of a work.

FIG. 5 is a view showing a throw-away tip having a breaker formed therein.

FIG. 6 is a view showing a throw-away tip provided with a breaker.

FIG. 7 is a view showing a throw-away tip provided with a breaker.

FIG. 8 is a view showing a throw-away tip having a breaker formed therein.

FIG. 9 is a diagram for explaining a delivery state of a throw-away tip.

FIG. 10 is a diagram for explaining processing of a breaker for a throw-away tip.

FIG. 11 is a diagram for explaining processing of a breaker for a throw-away tip.

[Explanation of symbols]

 12 Upper Substrate 16 Rotation Moving Table 30 Air Cylinder 38 Pulse Motor 56 Side Holding Plate 58 Grinding Wheel 60 Air Cylinder

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsushi Suzuki Katsushi Suzuki Gifu Pref.Kobe-cho, Yokoi, Nakaita 1528 Address Mitsubishi Materials Corporation Gifu Factory (72) Inventor Yoshino Nagano Kobe-chi, Anpachi-gun Gifu Yokoi character Nakashinda 1528 Mitsubishi Materials Corporation Gifu Works

Claims (1)

[Claims] 1. A support member having a reference surface for abutting a portion of the workpiece having a substantially flat plate shape on the side of the processing surface excluding the processing portion of the workpiece, and a predetermined position of the workpiece with respect to the reference surface of the supporting member. And a workpiece holding means for bringing a portion of the workpiece on the side of the machining surface into contact with the reference surface, and performing predetermined machining on the workpiece with the reference surface as a position reference. Characteristic work processing equipment.