JPH0549429B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] In a turret-type machining center used in metal cutting, burrs generated on a cut workpiece are removed using a special burr on a part of the turret head for mounting the tool. A deburring tool is attached so that the deburring work can be done automatically.

[Prior Art] It is known that when cutting metal materials, etc., burrs are generated on the edges of the cut surface due to mismatching of tools, friction, or the like. These burrs may cause injury to the person handling the processed product, or they may fall off during use of the parts and get mixed into the lubricating oil, increasing wear and causing clogging, so avoid burrs as much as possible. Removal work is underway.

This deburring work is carried out manually by using a brush of a hand tool at the back of a machine tool or in a corner of the factory, or by using a belt sander. There are also mechanical devices that use a simple polishing device with a buffing material attached to a rotating shaft, or a special polishing device that automatically removes burrs while the workpiece is moved by attaching it to a moving table. As is known, these deburring devices are constructed as independent, dedicated mechanical devices that require the workpiece to be held individually by hand, or for single or multiple workpieces to be held by hand. It takes time and effort to attach and remove from mechanical equipment, and special processing steps are required.

On the other hand, in the area of processing machine tools, numerically controlled turret-type machining centers have been developed, and rotary tools such as drills, end mills, reamers, or taps are attached to the turret head to sequentially cut parts corresponding to the workpieces mounted on the table. Although the processing production of parts has been greatly improved, the work to remove burrs generated during this processing is performed by removing the processed product from the turret type machining center, as described above. Therefore, in a turret-type machining center, if a deburring tool is installed in the turret head in advance, and the turret head is rotated to match the deburring tool to the workpiece after cutting and cutting, the deburring work can be done easily in the machining center. It is extremely reasonable to be able to do this. On the other hand, as a tool for deburring work, brushing uses a brush roller made of steel plate or stainless steel wire, etc.
It is recommended because it works evenly on the shape of complex processed products.

[Problems to be Solved by the Invention] By the way, the deburring tool attached to the turret head must be small in size and must be constructed so that it not only rotates the buffing material but also works over a wide area. Therefore, special configuration means are required.

Therefore, the present invention seeks to provide a deburring device for mounting a turret head that satisfies these requirements.

[Means for Solving the Problems] That is, the present invention is a deburring device that is attached to a turret head of a turret-type machining center, and includes a mounting case body having a protruding turret head insertion boss and an opening on one side, and the mounting case body. a driven shaft which is rotatably supported through the boss of the turret head and has first and second gears mounted thereon which are driven by the drive system of the turret head; a support shaft having a driven gear protruding toward the opening and rotatably supported and meshing with the first gear of the driven shaft, and a first bevel gear attached to the tip; A rotating case is provided with an internal gear that meshes with the second gear of the driven shaft on its peripheral surface and is provided to close an opening of the mounting case body, and a rotating case that rotates in a direction perpendicular to the support shaft. a second bevel gear that is freely supported and meshes with the first bevel gear; and a tool mounting shaft that projects outward from the rotary case and has a deburring tool attached to its tip; The tool mounting shaft is rotated via a gear, a driven gear, a first bevel gear, and a second bevel gear, and a second
The rotary case is rotated through the gear and the internal gear, and the deburring tool is rotated and revolved.

[Example] Hereinafter, the configuration and operation of the device of the present invention will be explained in detail based on the drawings, but the drawings show one example of specific implementation of the present invention, and the present invention is not limited to these illustrated examples. First, the present invention can be implemented in the same manner even if some of the constituent members or the design is changed in accordance with the spirit of the specification.

FIG. 1 (front view) and FIG. 2 (side view) show the deburring device 1 of the present invention attached to a turret head 3 that protrudes from a frame 2 of a machining center and rotates at appropriate times. A tool mounting surface 3a is formed, and a tool drive shaft insertion hole 3b is formed in a part of this mounting surface 3a.
Although a four-sided turret head is shown, or an output shaft may be made to protrude from the tool mounting surface 3a, and the drive shaft of the tool may be connected to this protruding output shaft. The deburring device 1 has a drive shaft on its tip side and buffing materials 18, 18 as deburring tools attached to both ends of the drive shaft.
A is rotated at high speed, and the front side of the mounting case body 5 of the deburring device 1 is constituted by a rotating case 12, and this drive shaft is rotated so as to swing around, and the buffing materials 18, 18a are rotated and moved around the revolution. Brushing is performed by lowering the frame 2 or by moving the workpiece upward together with the mounting base.

Figure 3 (side view) is a partially enlarged view of Figure 2 and shown in horizontal position, and Figure 4 is a side view of Figure 3.
The left side view of the figure, and FIG. 5, is a sectional view taken vertically at the center of FIG. 4, showing the structure and drive transmission.

Hereinafter, the structure and operation of the present invention deburring device 1 (hereinafter simply referred to as the present device) will be explained mainly based on FIG. 5.

5 is a mounting case body that constitutes the main body of this device;
It is formed of a circular hollow body with an open front side (towards the left in the drawing), and mounting seats 5a and 5b (FIG. 4) are formed upwardly and downwardly protruding, respectively. A boss 6 is formed in a part of the case body 5 and projects toward the mounting side, and the driven shaft 7 is rotatably supported by the boss 6. The driven shaft 7 projects from the boss 6 toward the mounting side and also toward the opening side of the case body 5. A driven gear 7a is attached to the mounting side tip of the driven shaft 7, a first gear 8 is attached to the cavity of the case body 5, and a second gear 8a is attached to the opening side tip.
is installed integrally with the driven shaft 7.

In addition, when attaching this case body 5 to the turret head 3, it is recommended to interpose a seat plate 4, so that the seat plate 4 is fixed to the turret head 3, and the case body 5 is attached to the seat plate 4. Although the configuration is shown in the figure, the case body 5 may be directly attached to the turret head 3 depending on the tool attachment surface of the turret head 3. Further, the shape, growth, etc. of the boss 6 can be appropriately changed depending on the structure of the turret head.

On the other hand, the hollow portion of the case body 5 has a bearing portion 5c.
At the same time, a bearing bracket 9 is attached to rotatably support a support shaft 10, and this support shaft 10 is made to protrude from the left opening side of the case body 5. A gear 11 is fixed to the hollow portion of the support shaft 10 and meshed with the first gear 8 fixed to the driven shaft 7. The gear 11 has a smaller diameter than the first gear 8, and has a diameter smaller than that of the first gear 8.
0 is driven by the driven shaft 7 at increased speed.

A rotating case 12 is rotatably supported on the protruding side of the support shaft 10 via a bearing, and an internal gear 13 is attached to the inner periphery of the rotating case 12 on the opening side. It meshes with a second gear 8a attached to the tip of the shaft 7.

That is, the support shaft 10 is located at the center of the circular body of the case body 5, and the rotating case 12 is located at the center of the circular body of the case body 5.
It rotates while being supported by the case body 5, and its periphery is arranged so as to close the opening with the case body 5. 14
is an annular ring with an L-shaped cross section, and is attached to the right side of the internal gear 13 to close the opening with the case body 5 and seal the shaft via the seal ring 14a.

The tip side of the rotating case 12 forms a square hollow protrusion 12a, and this hollow protrusion 12a
The tool mounting shaft 16 is mounted in a direction perpendicular to the support shaft 10.
is rotatably supported. Note that the hollow protrusion 12
Although a is shown as being formed integrally with the rotating case 12, it may be formed separately and attached to the rotating case 12. And the support shaft 10
One end faces into the cavity of the hollow protrusion 12a, and a first bevel gear 15 is fixed to the tip thereof, and is meshed with a second bevel gear 17 fixed to the tool mounting shaft 16. 16a is a cover plate.

On the other hand, buffing materials 18 and 18a as deburring tools are attached to both ends of the tool attachment shaft 16 that protrude outside from the rotating case 12 using tightening members 19 and 19a, respectively. And buffing material 18,
It is recommended that 18a be a brush roller made of stainless steel wire. Furthermore, it is recommended that these drive systems be of a lubricant-filled type, and although not shown, a lubricant oil injection plug is provided in a part of the case body 5. 20 is an oil gauge for lubricating oil.

In the device 1 configured as described above, the driven shaft 7 is rotated by the gear 7a meshing with the drive system of the turret head 3, and this rotation rotates the support shaft 10 via the first gear 8. Furthermore, the tool attachment shaft 16 is rotated via the first and second bevel gears 15 and 17, thereby rotating the buffing materials 18 and 18a. On the other hand, since the second gear 8a attached to the end of the driven shaft 7 meshes with the internal gear 13 attached to the rotating case 13, the rotating case 12 rotates due to the rotation of the driven shaft 7, and this rotation Tool mounting shaft 16
Swing around, rotate and revolve.

[Effects of the Invention] Since the deburring device of the present invention is constructed in this manner, it can be constructed in a small size and can be easily installed on the turret head.Moreover, the deburring device of the present invention can be revolved while rotating the buffing material at high speed. Burrs in all directions can be removed uniformly. Furthermore, by rotating the turret head, it is possible to efficiently deburr the workpiece held in the machining center after cutting.

[Brief explanation of the drawing]

Fig. 1 is a front view of the deburring device of the present invention attached to a turret head, Fig. 2 is a left side view of Fig. 1, and Fig. 3 is an enlarged side view of the deburring device shown in Fig. 2 in the horizontal position. , FIG. 4 is a left side view of FIG. 3, and FIG. 5 is a vertical sectional view of the central part of FIG. 4. 1... Deburring device of the present invention, 2... Frame,
3...turret head, 4...seat plate, 5...mounting case body, 6...boss, 7...driven shaft, 8...first gear, 8a...second gear, 9...bearing bracket , 10... Support shaft, 11... Gear, 12...
Rotating case, 13... Internal gear, 14... Seal ring, 15... First bevel gear, 16... Tool mounting shaft,
17...Second bevel gear, 18...Buffing material as a deburring tool, 19...Tightening member, 20...Oil gauge.

Claims (1)

[Claims] 1 A deburring device to be attached to the turret head of a turret type machining center, which includes a mounting case body with a protruding turret head insertion boss and an open side on one side, and a deburring device that is rotatably supported by penetrating the boss of the mounting case body and has a turret head insertion boss. a driven shaft to which first and second gears driven by a drive system are attached; and a driven shaft that is rotatably supported by protruding toward the opening side of the mounting case body parallel to and offset from the driven shaft. A spindle is provided with a driven gear that meshes with the first gear and has a first bevel gear attached to its tip, and a spindle that is rotatably supported on the spindle and meshes with the second gear of the driven shaft on its inner circumferential surface. a rotating case provided to mount an internal gear and to close an opening of the mounting case body; and a second rotating case rotatably supported by the rotating case in a direction orthogonal to the support shaft and meshing with the first bevel gear. a tool mounting shaft on which a bevel gear is mounted and a deburring tool mounted on the tip protruding from the rotating case; and a first gear, a driven gear, a first bevel gear, and a second bevel gear; The turret is characterized in that the tool mounting shaft is rotated through the deburring tool, and the rotating case is rotated through the second gear and the internal gear, so that the deburring tool is rotated and revolved. Deburring device for mold machining center.