JPS62114814A - Deburring method for casting and device thereof - Google Patents

Abstract

PURPOSE:To make burrs surely eliminable with less processes as well as to reduce a burden on a grinding member, by installing a casting support device equipped with a hollow support part, a driving device and a rough deburring device plus a burr grinding device. CONSTITUTION:Mounting a work W on a support frame, a positioning pin on die plate and an underside bolt of the work W are adjusted right for positioning and clamped by a clamp claw 12. And, a rod 1 of a cylinder is extended, making a plate 19 go down, and a gate (b) is cut off, then burrs (a) are partially removed by a lot of deburring pins 20. Removed burrs or the like are dropped beneath a base block 4 and discharged. Next, the work W is rotated as far as 90 deg. by a table rotational cylinder 7 and held vertically, and remaining burrs are ground and removed by a deburring tool 22 at a tip of the robot arm 21 set up sidewards. When operation is over, the work W is taken out, and a table 1 and the die plate 8 are restored to their original horizontal positions each, thus the operation is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for deburring a casting and an apparatus used in the method.

(Prior art) Until now, deburring equipment for castings has been developed since 1980.
The ffi! A device is known in which the cutter is moved downward toward the struck casting to remove sprues and burrs formed on the circumferential surface of the casting.

However, with this type of device, the shape of the cutting tool must be formed to match the contour of the casting, which requires a considerable amount of man-hours to manufacture.
However, there is a problem in that these must be removed one by one using separate equipment.

(Purpose) The present invention was made in view of the above problem, and its purpose is to reliably remove burrs, etc. formed on the peripheral surface of a casting, with as few steps as possible. Our goal is to propose a new deburring method.

Another object of the present invention is to provide a new device that is easy to manufacture and can reliably remove burrs and the like with a single device, regardless of the state of the molding. be.

(Means for Achieving the Object) That is, in order to achieve the above object, the present invention uses a large number of deburring pins on a deburring member arranged in a row corresponding to the planar shape of the mold joint to remove the burr from the casting. The first step is to roughly remove any burrs on the surface of the casting while pressing it in a direction substantially perpendicular to the mold joint surface, and to remove the burrs remaining after rough removal while moving the deburring grinding member along the mold joint of the casting. A second step of scraping off burrs on the surface of the casting, the casting support means having a hollow support portion for holding the casting substantially parallel to the mold joint surface. and a driving means for raising and lowering the supporting means, and a number of deburring pins arranged in a row corresponding to the planar shape of the mold joint on the lower surface, and a driving means for raising and lowering the support means, and a drive means for raising and lowering the support means, and a number of deburring pins arranged in a row corresponding to the planar shape of the mold joint part are provided on the lower surface, and (a means for roughly removing burrs that moves up and down in a vertical direction;
A device for removing burrs from a casting includes a burr grinding means that moves along a mold joint of the casting in an upright position.

(Example) The details of the present invention will be described below based on illustrated examples.

The drawing shows an example of an apparatus to which the method of the present invention is applied, and reference numeral 1 in the drawing is a table formed into a frame shape by removing the center part, and this table 1 is fixed to the lower surface of one side. A bearing 5 is mounted on the base 4 so that it can rotate about the shaft 2.
The table rotation cylinder 7 is attached to the table via an arm 3 fixed to one end of the shaft 2, so that the table can take either a horizontal position or a vertical position. This table 1
(This also has a frame-shaped Goui plate 8 fixed on its upper surface (the center of which has been removed), and several support rods 9 extending toward the center that are roughly fixed to the Goui plate 8... at the tips. As shown in Fig. 2, for example, a ring-shaped support frame 1o formed to match the planar shape of a motorcycle engine crankcase is integrally attached, and several positioning rods protruding from the top surface of the ring-shaped support frame 1o are integrally attached. By inserting pin 1]... into the bolt hole of the crankcase, this workpiece W is attached to the support rod, and the dive tools 32 and 32 are attached. 7--2 The chuck 13 is configured to hang on the workpiece wV support frame 10 by 33cm.

- 10,000, pillars erected on the base 4] A plate 19 guided by a plate elevating cylinder 16 and a guide post 18 is attached to a ceiling frame 15 fixed to the upper end of the elevating cylinder 16. The plate] 9 is raised and lowered by a rod 17. A large number of deburring pins 20 are arranged in a row along the planar shape of this plate (Fig. 9, 2), and the plate 19 is lowered almost perpendicularly to the mold joint surface A. In addition, the sprues bw formed on the outer peripheral surface and the inner peripheral surface of the workpiece W are cut out, and the barrier a is partially cut out.

On the other hand, a deburring robot (not shown) is disposed on the side of the base 4, and when the table] is positioned vertically, the arm 2] is extended and the deburring tool 22 attached to the tip is removed. It is configured so that it can be moved after being fixed to the mold joint surface A of the circumference of the workpiece W.

Note that reference numeral 6 in the figure indicates a stopper on the base 4 provided to hold the table 1 horizontally.

Next, the deburring operation by the above-mentioned apparatus will be explained.

First, the unprocessed workpiece W taken out from the mold is placed on the support frame 10 with the burrs facing horizontally.
Gui Plate 8 Hiji no 4ji M', Kime Beano 11
After increasing the number of bolt holes on the bottom surface of the workpiece W,
are fixed by clamp claws 12.

Then, when the rod 17 of the plate lifting cylinder 16 is extended to lower the plate 19, a large number of deburring pins 2o protruding from the lower surface are formed on the outer and inner peripheral surfaces of the workpiece W. When it comes into contact with the batho a and sprue,
At the same time as cutting out the sprue, the hole a is partially sheared off, and the removed barrier etc. is dropped directly below the base 4 and discharged by a transfer device (not shown) (FIG. 3(a)).

Therefore, as a result of this rough cutting step, only a portion of the barrier remains on the circumferential surface of the workpiece W. Next, the plate 19 is raised and the table rotation cylinder 7 is activated to clamp the workpiece W. The workpiece W is then rotated 90'' clockwise in the figure to hold the workpiece W vertically on the base 4.

As a result, both the upper and lower sides of the workpiece W are left wide open, the next step is to operate a robot (not shown) installed on the side of the base 4 and use the previously taught operation to deburr the tip of the arm 2. The barrier remaining on the circumferential surface of the workpiece W is minutely removed using the tool 22, and finally the clamping by the clamp claws 12 is released and the workpiece W is removed from the support frame 10 by carrying out drawing (not shown).

Note that the table 1 and the die plate 8 are returned to the horizontal position again by the table rotation cylinder 7 which is activated thereafter, and the series of deburring steps is completed.

(Effects) As described above, according to the present invention, the burrs are partially removed by the member in which the deburring pins are arranged, and the remaining burrs are removed by the grinding member. Not only can the burr or sprue attached around the casting body be reliably removed with a small amount of force without affecting the casting body, but also the burden on the grinding member that operates afterwards is reduced. As a result, its durability can be improved by a large amount.

In addition, deburring pins were arranged in rows on the members used in the first step according to the planar shape of the sickle-shaped joint, and the members used in the second step were moved along the sickle-shaped joint.
In addition to making it extremely easy to manufacture deburring parts according to the shape of the casting, the burr grinding process is performed after the casting has been undulated, allowing casting to be carried out without being affected by surrounding constraints. Burrs on the peripheral surface of objects can be reliably removed.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an apparatus showing an embodiment of the present invention, Fig. 2 is a perspective view showing the mounting state of a workpiece, and Figs. 3 (a) and (b) are side views showing each deburring process. It is. 1...Table 2...Axis 7...Table rotation cylinder 8...Die plate 10...Support frame] 3.
... Chuck 16 ... Plate lifting cylinder 20 ... Deburring pin 22 ... Deburring tool Fig. 1

Claims (1)

[Claims] 1. While pressing a large number of deburring pins on a deburring member arranged in a row corresponding to the planar shape of the mold joint part in a direction substantially perpendicular to the mold joint surface of the casting, a first step of roughly removing burrs on the surface of the casting; and a second step of scraping off burrs remaining on the surface of the casting while moving a deburring grinding member along the mold joint of the casting. A method for deburring castings, which consists of processes. 2. A casting support means having a hollow support portion for holding the casting substantially parallel to the mold joint surface, a driving means for undulating the support means, and arranged in a row corresponding to the planar shape of the mold joint part. a burr roughing means having a large number of deburring pins on the lower surface and moving up and down from above the casting in a reclining position in a direction substantially perpendicular to the mold joining surface; and a mold joining of the casting in an upright position. A casting deburring device comprising a burr grinding means that moves along the section.