JPS5915731B2 - Casting product deburring device equipped with a reduction unit with a copying mechanism - Google Patents

Description

Detailed Description of the Invention (Object of the Invention) The present invention divides burrs on a cast product such as a crankshaft into a plurality of parts, and attaches cutting tools that fit the divided burrs to several press machines constructed by straddling conveyors. The present invention provides a device that continuously performs top cutting and highly accurate deburring of a cast product, which is fixed by a guide piece of an attached copying mechanism.

(Prior art) 5 Conventionally, deburring work for irregularly shaped castings has mostly been done by folding with a hammer or manually using a grinder, which is time-consuming, and a punching die for the entire shape has also been considered. In addition, there are distortions in the castings, and since the cutting tools are made with this in mind, sometimes parts that don't need to be removed are removed, and burrs are left behind, requiring rework. There was a problem.

(Structure of the Invention) The present invention, which eliminates the above-mentioned drawbacks and automatically performs deburring and finishing with high precision, is novel in the prior art.

In the present invention, the cutting tool is not made into a complete mold, but the burr part of the cast product is divided appropriately, and the partial cutting tool is divided into several parts or a plurality of pieces are combined to form one cutting tool in several press machines connected in series. It is characterized by attaching one mold at a time, and (2) attaching a guide piece that fits the area around each cutting tool, following the casting and fixing it, and then cutting it off. As shown in FIGS. 5 and 6, the outer periphery of the burr portion 2 of the cast product 1 (in the example, the crankshaft) is divided into 25 parts.
A cutting tool 3 suitable for each shape is made, and the cutting tool 3 is transferred to a plurality of press machines 10 (IOA, 1
As shown in FIGS. 3 and 4, the spindle 5 is fixed to the tip of the spindle 5 of the lowering unit 430 attached to the opening B, IOC . . . .
A sliding tube 7 with a guide piece 6 attached to the outside that follows the shape of the cast product.
The outer casing B of the lowering unit 4 is airtightly fitted on the outer periphery of the sliding tube T, and approximately the middle 3 of the outer device of the lowering unit 4 is fitted.
5 A press machine having a copying mechanism supported by a spherical bearing 9 and attached to a portal frame 11 of a press machine 10 is installed in series as shown in Figs. This is a deburring device for cast products that can remove burrs.

The main part, the reduction unit 4, has a hydraulic cylinder 1 in the center.
It has a spindle 5 that moves up and down at a rotation angle 4, a sliding cylinder 7 is fitted on the outer periphery of the spindle 5, and an outer device of the reduction unit 4 is fitted airtightly on the outer periphery of the sliding cylinder 7. The sliding tube 7 can be lowered using compressed air.

A cutting tool 3 can be attached to the tip of the spindle 5, and a guide piece 6 can be attached to the mounting base 18 at the tip of the sliding tube 7 according to the shape of the cast product 1. The rolling unit 4 is also supported by a spherical bearing 9 and attached to a portal frame 11 of a press machine 10, and the cutting tool 3 and guide piece 6 at the tip thereof are slightly tiltable in all directions, and the casting product 1 It is designed so that it can be pressed like this. Further, the spindle 5 and the sliding tube 7 are provided with rotation stops 13, 13', 13 to prevent them from rotating.

The cutting tool 3 is divided (9 parts) as shown in the embodiment shown in FIG.
It is attached to the rolling unit of 0C,...... It is also possible to combine the parts with less directional strain to form a type 1 cutting tool and attach it to the press machine 10, thereby reducing the deburring process and simplifying the equipment.

For the guide piece 6, a V-shaped stand 16 is used for the round shaft portion of the cast product 1, and a sloped stand 17 is used for the other parts to form the guide piece 6. It is fixed at 18.

The pallet 19 is for holding the cast product 1 so that it does not shift, and may be fixed using a pedestal using a combination of V-shaped stands or a vise.

(Operation of the Invention) A deburring device for a cast product 1 having a copying mechanism according to the present invention is a series of press machines 10 as shown in FIGS. 7 to 10.
(10A, 10B, 10C, . . . ) are arranged in series, and the castings 1 placed on a pallet 19 are intermittently automatically carried in from the loading port 23 by a conveyor 26 such as a walking beam, As shown in Figs. 3 to 5, the split cutter 3 (3
A, 3B, ...) and guide piece 6 (6A, 6B,
Press machines 10A, 10B, 10 equipped with...)
Sequentially burr part 2 to 1 part by C, ......
The burr 2 is removed from the entire circumference by passing through a series of presses.

The cast product 1 deburred by the pusher 20 and the lift device 21 is transferred along with the pallet 19 onto a return roller conveyor 22 installed next to the press machine, and then moved to the exit 24. The deburred cast product 1 is carried out at the carry-out port 24, and the pallet 19 slides sideways, and another cast product 1 is loaded at the carry-in port 23 and carried into the press machine 10, where it is processed in the same manner as described above. The above-mentioned press group is equipped with the rolling down unit 4 explained in the configuration, the cutting tool 3 is attached to the central spindle 5, the guide piece 6 is attached to the sliding tube 7, and the outer device of the sliding tube 7 is attached. The approximately center of the is supported by a spherical bearing 9, making it freely tiltable in all directions, so when compressed air is injected from the air inlet 15, it enters the air cylinder 25 and presses the sliding tube 7, causing it to slide. The tube 7 and spindle 5 are lowered simultaneously, and the guide piece 6 (V-shaped table 16 and inclined table 17) that matches the shape of the casting 1 placed on the pedestal on the pallet 19 hits first, and the copying tool 3 Centering is carried out according to the conditions, and the casting is fixed (at this time, the cutting tool has not yet touched the burr).

Thereafter, the spindle 5 is further pressed by the hydraulic cylinder 14 attached to the top of the outer device, and the burr is cut off by the cutting tool 3 fixed to the tip thereof.

When the spindle 5 is raised, the guide piece 6 remains while holding down the cast product 1, and the cutting tool 3 hits the sliding tube 7 on the way up and rises together with it and returns to its original position.

Therefore, if the conveyance machine 26 using a walking beam or the like, the press machine 10, the pusher 20, the lift device 21, the mouth roller conveyor 22, etc. are controlled in conjunction with each other, the work of cutting off the burrs can be performed automatically. (Effects of the Invention) The present invention divides the entire circumference of the burr of a cast product into several parts to make individual cutting tools and guide pieces, and uses a copying mechanism to center and remove burrs for each part, resulting in high precision and easy rework. There's no need.

It can also be widely applied to other deburring finishes, and if it is automated by connecting press machines equipped with split cutters and guide pieces as in the present invention, the effect on productivity improvement in mass production will be extremely significant. .

[Brief Description of the Drawings] Fig. 1 is a front view of a press machine according to an embodiment of the present invention, Fig. 2 is a side view, and Fig. 3 is a cross-sectional view of a rolling unit, including cutting tools and guide pieces. Fig. 4 is a front view showing the relationship between the cutting tool, the guide, and the casting on the pallet (side view), and Fig. 5 is a plan view of the cutting tool (not showing the divided state). ), FIG. 6 is a front view showing burrs on a cast product, FIG. 7 is a plan view of an embodiment of the present invention, FIG. 6 is also a side view, and FIG. 9 is a side view of FIG. The X-ray sectional view and FIG. 10 are also side views of the pusher lift device. Explanation of symbols of main parts 1... Cast product, 2... Burr, 3... Cutting tool, 4... Rolling unit, 5... Spindle, 6... Guide piece, 7... Slide Moving cylinder, 9... Spherical bearing, 10... Press machine, 12... Rotating motion control device,
14... Hydraulic cylinder, 19... Pallet, 22
... Roller conveyor, 25 ... Air cylinder 26 ... Conveyor.

Claims (1)

[Claims] 1. Multiple presses are arranged at approximately equal intervals across a conveyor such as a walking beam that intermittently conveys pallets loaded with castings of workpieces. A roller conveyor is provided for transporting the cast products, and a lift device and a pusher are provided at the tip of the conveyor for transferring a pallet on which the processed cast products are placed to the roller conveyor. A spindle that fixes a cutting tool at the tip that matches the shape of the divided outer periphery of the burr part of the cast product to be machined is directly connected to a hydraulic cylinder installed at the top, and a guide piece that follows the shape of the cast product to be machined is attached to the outer periphery of this spindle. A copying mechanism that includes an attached sliding tube and an exterior that is airtightly fitted around the outer periphery of the sliding tube, and that is supported by a spherical bearing installed approximately in the center of the exterior with a rotation stopper provided on the frame of the press. A casting product deburring device equipped with a reduction unit.