JPH0560643U - Deburring device for cores - Google Patents

Abstract

(57) [Summary] [Object] To provide a device for efficiently removing burrs generated on the surface of a casting core at high temperature without damaging the core. [Constitution] A plurality of rotary brushes made of filament, in which abrasives are mixed in heat-resistant nylon material, are arranged, and the rotary brushes move up and down along the core conveyer line and swing in the axial direction. Then, the movement following the outer shape of the core and the forward and reverse are performed in an air blowing atmosphere of cold air, and the core ceiling is also deburred with a rotating brush, and the deburred product is carried out from the conveyor line. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in a deburring device that removes burrs generated in a casting core.

[0002]

[Prior Art]

 In the conventional deburring device for a casting core, a first example is a means for manually removing deburring by using a file. As a second example, as shown in JP-A-57-44448, deburring is performed by means of projecting particles having a specific grain shape, specific gravity, hardness and heat resistance onto a core.

As a third example, as shown in Japanese Utility Model Laid-Open No. 62-34962, a plurality of levers having a spring mechanism and a deburring roller at the tip, and a plurality of levers for front and rear and A device in which a cylinder mechanism that moves up and down is arranged, and a core is formed by means of deburring by moving the deburring roller that follows the shape of the positioned core by moving the device. Is.

As a fourth example, in a deburring device, a chain is formed by twisting a large number of thin metal wires into a shape of a hot screen, and the core is passed through the chain, while a drive source is used. Means for removing the burr of the core by moving the chain in the vertical and horizontal directions. Examples of the above-mentioned examples include JP-A-56-122543 and JP-A-57-106564. Japanese Laid-Open Patent Publication No. 63-144844 and Japanese Laid-Open Patent Publication No. 63-144844. Although the mechanism for moving the chain in the vertical and horizontal directions is different, the burr of the core is removed by the motion of many suspended chains. The same means is used for performing.

The above-mentioned first example has a drawback that the cost is high because a lot of man-hours are required because of the manual work.

In the second example, the accuracy of the shape after deburring depends on the type of particles to be projected, the projection speed, the projection angle, etc., and there is a drawback that the particles are scattered when they are collected.

The third example has a drawback in that the movable range of the roller or the blade for removing burrs is limited, and there is a burrs removal residue.

In the fourth example, since the chain is formed by twisting the metal wires and the chain is horizontally or vertically moved to remove the burr, the core having a particularly complicated shape is formed. In the case of, the chain has a part that does not hit the burr, or the burr cannot be removed, and conversely there is a problem that the part other than the burr to be removed hits and damages. There is an inherent problem that it may occur when a specially shaped goodwill chain is required.

[0009]

[Problems to be solved by the device]

 In view of various problems inherent in the above-described conventional deburring means using the structure of the core deburring device, the molding of the core is performed under a high heat of 350 ° C. When efficiently performing deburring work under high residual heat of 150 ° C to 200 ° C, there is no denaturation even at the above temperature, core is not damaged, and it is highly flexible and has abrasion resistance. Using a deburring tool made of a material that has excellent scouring power and can be used repeatedly, deburring work can be performed easily even with a core with a complicated shape, and the quality is stable, and the number of man-hours is high. It is an object of the present invention to provide a deburring device for a core that can reduce the number of cores.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the invention of claim 1, in a deburring device for removing burrs generated in a casting core, a wire rod brush made of a filament mixture of a heat-resistant nylon material and an abrasive material is used. A plurality of rotating brushes are arranged at a predetermined interval, and the rotating brush comprises a power source for rotating the rotating brush forward or backward by a sensor, and a swinging device for swinging the rotating brush leftward or rightward in the axial direction. It is connected to a drive oscillating device, and the drive oscillating device includes a brush elevating device for suspending the device and a brush oscillating device along the shape of the burr part of the core during up-and-down motion. A guide cam device for copying and swinging the device is installed, and during the core deburring process, the core ceiling brushing device and the cool air blower for blow and brush cooling are installed. And over device, a device for positioning the core serving as the material to be treated is a configuration that is incorporated.

[0011]

[Action]

 According to the configuration of claim 1 of the present invention, the rotating brush of the deburring device is a wire rod brush made of a filament in which an abrasive material is mixed in a heat-resistant nylon material, which is flexible and elastic. Since it is rich in properties, it does not damage the core and exhibits excellent polishing and cleaning power even during work under the high heat of the remainder.

[0012] Further, while rotating the rotary brush, it swings and moves up and down in the left and right directions, and further, following the shape of the burr by the guide cam, it follows the entire shape of the burr. Deburring is performed.

Further, since the rotary brush is normally and reversely rotated at a predetermined position by the sensor, deburring is surely performed, and the number of working steps is reduced.

In addition, during the deburring processing path of the core, the core ceiling brushing device cleans the ceiling portion that is difficult to be brushed by the swinging motion and the lifting motion, and the air blow and the brush cooling are performed. The effect of strong air, such as cold air blow for use, is added, and the effect of stabilizing the quality is obtained.

[0015]

【Example】

 1 to 5 show the outline of the structure of a deburring device for a core, which is an example of an embodiment of the invention of claim 1, a rotary brush 1, a brush driving rocking device 2, a brush lifting device 3, and a guide. The main device comprises a cam device 4 and a ceiling brushing device 5, and the structure and operation of each device will be described below.

In this embodiment, the work core 6 processed by the deburring device has the shape shown in FIG. 4, and the curved portion of the crankcase core is formed from the base of each protrusion of the cylinder bore core. The burr 7 continuing to the above is considered to be the main cleaning portion.

At the lower part of the deburring device, as shown in FIG. 1, a conveyor device 10 is provided so as to extend from a work carrying-in port 8 to a carrying-out port 9. It is a transfer device for the core 6 involved in the work lifting / lowering, clamping, polishing, and unloading, which are the polishing and cleaning processes. Sensors (not shown) are arranged at each predetermined place, and the space between each device and the core 6 is arranged. Is controlled.

The conveyor device 10 is provided with a work stopper device 11 having a stopper 13 which can be lifted and lowered by an air cylinder at a position directly below the rotating brush 1, and a work lifting device 12 which is operated by a cylinder. When the core 6 is transferred to a predetermined position, the stopper device 11 operates, and when the work lifting device 12 raises the core 6 to the position of the rotating brush 1, the work clamp device 17 clamps the core 6. Then, the rotary brush 1 is used to enter the polishing step.

The work stopper device 11 detects the rise of the work 6 when the core 6 is carried into the work carry-in port 8 and the work elevating device 12 rises, and raises the stopper 13 to stop the core 6 at a fixed position. After detecting the stop of the core 6, the stopper 13 is lowered to the non-acting position.

When the work 6 is transferred from the position of the work lifting device 12 to the post-processing position by the conveyor device 10, the work stopper device 11 moves the work lifting device 12 inside. The signal that the child 6 has passed causes the stopper 13 to be raised again, and the stopper 13 is lowered again as the next core 6 is carried in and the work lifting device 12 is raised.

The rotating brush 1 is a wire brush made of a nylon material mixed with an abrasive such as alumina oxide or silicon carbide to form a filament, and the brushes are arranged in parallel at a plurality of intervals. In the illustrated example, as shown in FIG. 2, a pair of left and right rotating brushes 1 are arranged with the core 6 sandwiched therebetween, and the rotating directions are opposite to each other. It is connected to a power source 2D of a brush drive oscillating device 2 which will be described later. The power source 2D is at a predetermined position when the rotating brush 1 is converted from descending to ascending by a brush elevating device 3 described later. It has the function of reversing by the sensor installed in.

A guide rail 15 fixed to a frame 3A of a brush lifting device 3 to be described later and extending in the axial direction of the rotating brush 1 is disposed above the brush drive rocking device 2 to drive the brush drive device. The oscillating device 2 is engaged with the guide rail 15 by the sliding seat 2A, and by the air cylinder 16 fixed to the frame 3A, the brush drive oscillating device 2 is moved in the left-right direction shown by an arrow A in FIG. Is slid back and forth.

The guide cam device 4 is arranged on the side wall portion 19 of the frame 18 for the purpose of performing the cleaning work by applying the rotary brush 1 following the shape of the core 6, and in the illustrated example, it is shown in FIG. The cam plate 14 having the V-shaped cam groove 28 is attached to a slide unit (not shown) to form the guide cam device 4, and the structure is such that the copying movement of the brush corresponding to the outer shape of the core 6 can be adjusted. The cam roller 20 rolling on the cam plate 14 is arranged on the side wall of the frame of the brush drive rocking device 2, and the cam roller 20 follows the cam plate 14 by the vertical movement of the brush elevating device 3 described later. The brush drive oscillating device 2 is guided and oscillated.

A slide frame 21 is arranged on the upper left and right sides of the frame 18 of the apparatus, the brush lifting device 3 is vertically slidably assembled, and an air cylinder 22 is arranged on the ceiling of the frame 18. The brush drive swing device 2 is suspended via the cylinder 22 so as to be able to move up and down.

The brush lifting device 3 descends according to a clamp completion signal from a work clamp device 17 described later, and ascends and descends with respect to the core 6 where it is raised by a sensor at the descending end, and In connection with the operation of the guide cam device 4, the brush drive rocking device 2 follows the shape of the core 6, and in the illustrated example, the deburring operation is repeatedly performed while drawing the trajectory of the operation as shown in FIG. ..

As shown in FIG. 2, the work clamp device 17 is provided with slide plates 33, which are operated by cylinders 32 on both left and right sides, at the elevated position of the core 6 which is a work centering on the conveyor device 10. Has a structure in which the clamp claws 31 of the core 6 are arranged. The core 6 is prevented from moving during brushing of the core 6, and the core 6 is moved to one side by the pressure difference of the cylinder 32. By bringing it closer, it also has the function of centering, and it has a structure that allows stable work even during brushing.

The work clamp device 17 clamps the core 6 by striking the clamp claws 31 when the core 6 is completely lifted, and brushing is performed when a clamp completion signal is sent to the brush drive rocking device 2. After the brushing is completed, the brush driving oscillating device 2 is unclamped by the rising completion signal.

On the frame 2 B of the brush drive rocking device 2, there are arranged air blow devices 2 C which are located on both sides of the core 6 and which consist of air blow pipes extending in the axial direction of the rotary brush 1. It is configured to cool the core 6 and blow off the removed burr powder.

In the illustrated example, the air blow device 2C is attached to the frame 2B of the brush drive rocking device 2, but it goes without saying that the device 2C may be attached to the frame 18.

As shown in FIG. 3, the ceiling part brushing device 5 of the core 6 is a device for cleaning the ceiling part while transferring the core 6 which is the work by the conveyor, and is located at both sides of the conveyor with the conveyor pinching. The rotating brushes 24, which are arranged and are connected to the respective power sources 23 on the left and right sides, are assembled to an inclined plate 25 that allows the angle of the brush to be adjusted. The brush is screwed to a pedestal 26 having an adjustment handle 27 that enables adjustment, and the structure is such that the brush can be easily set according to the position and angle of the ceiling of the core 6.

The outline of the operation of each part during the time when the work, which is the core, is carried into the deburring device and is carried out through the polishing and cleaning process by brushing will be described.

When the brushing drive rocking device 2 is in operation, the carry-in side conveyor stops the next core 6 by a signal from the photoelectric tube device arranged on the entrance side, and waits until the operation is completed.

Next, when the operation of the brushing drive rocking device 2 is completed and the core 6 is unloaded from the device 2, the core 6 waiting is accepted.

The core 6 exiting the device 2 is transferred at a low speed by the conveyor device 10, and during the transfer process, the ceiling of the core 6 is brushed by the ceiling brushing device 5 while being removed from the deburring device. Be carried out.

The carried-out work core 6 is transferred to the next process by the conveyor on the exit side.

With respect to the loaded core 6, the stopper 13 of the work stopper device 11 rises in response to a work passage confirmation signal, and then the work lifting device 12 raises the core 6 to complete the ascent at a fixed position. 13 descends.

At this time, when the core 6 reaches a height at which brushing is possible, a work lift completion signal is output to the work clamp device 17, and the brush drive rocking device 2 is operated by the clamp completion signal of the core 6 as the work. Is activated, the brush is rotated and oscillated, the brush lifting device 3 is also activated, and the polishing process is started.

At this time, as described above, the core 6 is moved to one side due to the pressure difference of the cylinder, centering is performed, and the core 6 is securely clamped.

Next, when the brush elevating device 3 is moved up and down, the cam roller follows the cam groove to guide the brush drive rocking device 2, and the rocking is performed, and the entire side surface of the core 6 is brushed. When the direction of rotation changes from descending to ascending, it reverses and further increases the deburring effect.

Next, the polishing / cleaning process is completed, and the core 6 is unclamped by the work clamp device 17 in response to the rising completion signal of the brush drive rocking device 2, lowered by the work lifting device 12, and transferred to the conveyor. , The brushing is completed, and then it is transferred to the ceiling brushing device 5.

At this time, the brush drive rocking device 2 is stopped by the operation completion signal of the brush lifting device 3.

[0042]

[Effect of the device]

 The present invention has the structure and operation described above. The brush of the deburring device is a wire brush made by mixing abrasive material into nylon material and processing it as a filament. It has a function of reversing when converting from descending to ascending, swings to the left and right, and repeats descending and ascending motions, but by adding a copying operation by a cam along the shape of the burr part, It has the effect of performing reliable deburring.

Further, since the rotary brush is highly flexible and has heat resistance, it also has an effect that deburring can be continuously performed without damaging the core, which is a high-temperature work.

Further, it is possible to automate the linked operation of various devices involved in the loading of the core and the deburring by the rotating brush, and the workability is good and the deburring of high quality can be performed at a high speed. There is also an effect that can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing the overall configuration of a deburring device of an embodiment.

FIG. 2 is a side view of the loading side of the one shown in FIG.

FIG. 3 is a side view of the unloading side shown in FIG.

FIG. 4 is a perspective view of a core showing a deburring portion.

FIG. 5 is a plan view of a cam plate showing a shape of a cam groove.

FIG. 6 is an explanatory diagram of an example of a tracing trajectory of a rotating brush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotating brush 2 brush drive rocking device 3 brush lifting device 4 guide cam device 5 ceiling brushing device 6 work core 7 burr 29 core ceiling 30 rocking device 2B air blow device

Claims (1)

[Scope of utility model registration request] 1. A deburring device for removing burrs generated in a casting core, wherein a plurality of rotary brushes each composed of a wire rod brush made of a filament obtained by mixing a heat-resistant nylon material with an abrasive material are provided at predetermined intervals. And is connected to a brush drive rocking device including a power source for rotating the brush forward and backward by a sensor, and a rocking device for rocking the brush laterally in the axial direction. The brush drive oscillating device includes a brush elevating device that suspends the device so that the device can be moved up and down, and a guide cam device that causes the brush drive oscillating device to follow the shape of the burr portion of the core during the elevating motion. In the core deburring process path, a core ceiling brushing device having a rotating brush facing the core ceiling and an air blow of cool air for blowing and cooling are installed. A deburring device for a core, characterized in that the device and a device for positioning a material to be treated as a core are incorporated.