JPH06246430A - Method and device for cutting off casting flash in cast product - Google Patents

Abstract

PURPOSE:To cut off the casting flash without shifting a work from a conveying line. CONSTITUTION:The work 1 is shifted on the conveying line and at the time of coming to the supporting condition with rollers 9 in a lifting device 7, the work 1 is fed to the prescribed front position in the lifting device 7 with a feeding stopper 16. A front side stopper 17 is driven with a cylinder device 19 through link mechanism to regulate the front end of the work 1. A pressing member 32 is engaged with the upper end of the work 1 and the work is descended against the energizing force of a coil spring 14 of a cylinder device 34 in the lifting device 7, and when the lower end thereof is abutted on a stopper 31, the descent of the work 1 is stopped. A side stopper 37 is shifted toward the work 1 and abutted on the work 1. A cylinder device 43 in a cutting-off device 40 is started and the edge 41 for cutting off the casting flash is descended along the front end surface of the work 1, and while cutting off the casting flash, the edge is further descended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burr cutting method and a cutting device for cast products.

[0002]

2. Description of the Related Art In the production of cast products, it is necessary to remove the burrs that are unavoidably present on the surface of the cast work after taking it out of the casting mold. An example of such an apparatus for removing burrs from cast work is disclosed in Japanese Patent Laid-Open No. 61-154.
It is disclosed in Japanese Patent Publication No. 761. In the disclosed apparatus, a cast work is carried into a predetermined work station, and a deburring blade is attached to a movable body that moves along the work to perform deburring.

[0003]

[Problems to be Solved] Conventionally, for deburring, a work is once moved from the transfer line to another place to perform deburring work, and after deburring is finished, the work is returned to the transfer line for subsequent processing. Was there. However, in this method, it is necessary to move the work from the transfer line to another place for deburring, and there is a problem that the number of processes is increased and work efficiency is reduced.

An object of the present invention is to provide a method and an apparatus for deburring a cast product which is configured to solve such a problem and which does not cause the above-mentioned decrease in work efficiency. More specifically, the present invention is to provide a deburring method and apparatus capable of deburring without transferring a work from a transfer line.

[0005] Another object of the present invention is to prevent deburring of a transfer line when deburring the transfer line.

[0006]

The deburring method of the present invention is configured as follows to achieve the above object. That is, the deburring method of the present invention places a work on a transfer line and transfers the work, is provided at a predetermined position on the transfer line, constitutes a part of the transfer line, and has an upper position continuous with the transfer line and When it reaches the elevating means that can select the position below the transfer line, the transfer is stopped, the front-back positioning is performed and the movement in the front-rear direction is restricted, and the lateral displacement of the work is prevented. Restraining and lowering the work placed on the elevating means together with the elevating means while pressing the work placed on the elevating means from above by the pressing means provided above the elevating means, and restricting the descent of the work when the work descends to a predetermined position. Means for restricting the vertical displacement of the work by the pressing means and the restricting means, and the cutting means remains in contact with the side surface of the work and protrudes to the side surface of the work. Characterized by cutting the concrete burrs.

Further, the deburring apparatus of the present invention is provided with an elevating means capable of selectively selecting an upper position where a work is placed and is continuous with the transfer line and a position lower than the transfer line, and the elevating device. A pressing means which is provided above the table and lowers the work placed on the elevating means while pressing the work from above, and a pressing means which is provided below the elevating means and which abuts the lower surface of the work when the work descends. And a cutting means for abutting the side surface of the work held by the pressing means and the restriction means and for cutting the remaining casting burr protruding from the side surface of the work. To do.

In this case, in a preferred mode, the wide side of the work is directed upward, and the cutting means is moved downward to cut the burr. More preferably, the elevating means is provided with positioning means for positioning the work at a predetermined position in the front-back, left-right, and up-down directions. Also,
Urging means for urging the elevating means upward,
It is desirable to include an ascending restricting means for restricting the transition to the upper position or higher.

[0009]

According to the present invention, the deburring process is carried out while the cast work is placed on the carrying line and is being carried.
In this case, at a predetermined position on the transfer line, an elevating means that constitutes a part of the transfer line and is selectable between an upper position continuous with the transfer line and a position below the transfer line is provided. It is provided. When the work reaches the elevating means, the stoppers act on the front and rear of the moving direction to stop the movement of the work. That is, the work is restrained by the positioning in the front-back direction. Next, the lateral displacement is restrained by operating the lateral stopper. Further, a pressing means is provided above the elevating means to lower the work together with the elevating means while pressing the work from above. Further, below the elevating means, a regulating means such as a stopper for regulating the descent of the workpiece when the workpiece descends to a predetermined position is provided to regulate the further descent of the workpiece. As a result, the vertical direction of the work is held and fixed by the pressing means and the regulating means.

Further, by fixing the front, back, left and right, the movement of the work is completely restrained. In this state, the cutting means is brought into contact with the side surface of the work and the casting burr remaining in a state of protruding to the side surface of the work is cut. After cutting,
Release all constraints on the work and return it to a transportable state. In this case, the elevating means has an urging means for urging the work upward, but since the elevating restricting means for restricting the upward displacement of the elevating means is provided in order to limit excessive urging, The elevating means does not move beyond the upper position. Therefore, when the above constraint is released, the elevating means is stopped at the upper position continuous with the level of the front and rear transport lines, and the alignment with the front and rear transport lines is not broken.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3, there is shown a structure of a deburring device for a cast product according to an embodiment of the present invention. The work in this example is a semi-finished product of a cylinder block of an engine. Transfer line 2 for transferring work 1
Is provided. The transport line is composed of a pair of frames 3 extending in parallel along the transport direction, and rollers 4 positioned side by side at a predetermined interval in the transport direction and rotatably supported by the support frame. In the configuration of this example, the deburring device 5 is provided in the middle of the transfer line. The deburring device 5 is a device for cutting and removing the casting burr 6 that is inevitably generated on the end surface of the work 1 after casting.

The deburring device 5 is provided with a lifting device 7 which is maintained at the same level as the carrying line 2 in the carrying state. The elevating device 7 is provided with left and right frames 8 provided so as to be continuous with the conveyance line 2 and rollers 9 rotatably supported by the frames 8 and arranged at right angles to the conveyance direction in parallel at a predetermined interval. There is. A motor 10 is provided on one side of the elevating device 7 for rotating the roller 9 to send the work 1 from the elevating device 7 to the transport line 2.
The motor 10 and the roller 9 are connected via a power transmission mechanism such as a belt pulley.

The front and rear ends of each frame 8 are supported by a cylinder device 11 from below. Cylinder device 1
1 includes a piston 12 that can be vertically retracted and the piston 1
2 and a cylinder 13 and a coil spring 14 for urging the piston 12 upward. Below the transport mechanism of the lifting device 7, a positioning device 15 for positioning the work in the front-back direction is provided. A work feeding stopper 16 is provided which pushes the rear end portion of the work 1 from between the rollers 9 to feed the work 1 to a predetermined position in the front-rear direction when the work 1 is conveyed into the lifting device 7.

A roller 9 is similarly provided on the front side of the work 1.
A deburring side stopper 17 that engages with the front end of the work 1 from between and positions the front end of the work 1 is provided.
Cylinder devices 18 and 19 are provided below one frame for driving the stoppers 16 and 17 in front of and behind the work 1, respectively. A horizontal bracket 2 that connects between the pistons 12 of the cylinder device 11 before and after the lifting device 7.
0 is provided and a pair of vertical brackets 21 are provided extending downward from the middle portion of the horizontal bracket. The stopper driving cylinder devices 18 and 19 are attached to a vertical bracket 21 via a rib 22 so as to be swingable around a swing shaft 23. Cylinder device piston 24
Is attached to one end of a lever 25, the other end of the lever is fixed to one end of a rotary shaft 26, and the stopper 16 is attached to the rotary shaft 26.
The stopper 16 is rotated according to the rotation of the rotary shaft 26, and the engagement with the work 1 is controlled.
One end of the rotary shaft 26 is supported by the horizontal bracket 20 via a bearing member 27, and the other end of the rotary shaft 26 is provided with the lifting device 7.
It is supported by a horizontal bracket 28 connecting the pistons 12 of the left and right cylinder devices 11 via bearing members 29.

Below the work 1, there is provided a stopper 31 which is supported by the base surface 30 and contacts the lower surface of the work 1 between the rollers 9 to restrict the downward displacement of the work 1. A pressing device 32 that presses the work 1 downward is provided above the work 1. The pressing device 32 is located opposite to the work 1, and includes a work pressing member 33 that engages with the upper end of the work 1 and urges it downward, that is, a pressing member 33 and a cylinder device 34 for vertically driving the pressing member 33. I have it. The pressing member 33 is attached to the lower end of the piston 35 of the cylinder device 34.
Furthermore, a pair of side stoppers 37 for laterally restraining the work are provided on both left and right sides of the lifting device 7 in the transport direction. The side stopper is adapted to be driven by the cylinder device 38, and is attached to the tip of the piston 39 of the cylinder device 38.

Further, a cutting device 40 is provided above the front end of the work 1 which is positioned by the lifting device 7.
The cutting device 40 includes a pair of left and right deburring blades 41 for deburring the front end surface of the work 1, a support member 42 for supporting the blades, and a deburring blade 41 together with the support member 42. And a cylinder device 43 to be driven. The support member is attached to the tip of the piston 44.

The operation of the apparatus having the above configuration will be described. When the work 1 which is a semi-finished product for casting moves on the transfer line 2 and is brought into a state of being supported by the roller 9 of the lifting device 7 by the power of the motor 10, the motor 10 is stopped.
Then, the work feeding stopper 16 is driven by the cylinder device 18 via the link mechanism to feed the work 1 to a predetermined front position of the elevating device 7.

Next, the front stopper 17 is driven by a cylinder device 19 via a link mechanism to regulate the front end of the work 1. As a result, the work 1 is positioned in the front-rear direction on the elevating device 7, and at the same time the movement in the front-rear direction is restricted. Next, the cylinder device 34 of the pressing device 32 is activated to lower the pressing member 35. The pressing member 32 engages with the upper end of the work 1 and descends against the urging force of the coil spring 14 of the cylinder device 34 of the lifting device 7, and when the lower end abuts the stopper 31, the lowering of the work 1 is stopped. To do. As a result, the work 1 is positioned in the vertical direction and the movement in the vertical direction is restricted.

Next, the left and right cylinder devices 38 are activated to move the side stoppers 37 toward the work 1 and bring them into contact with the work 1. As a result, the left and right movements of the work 1 are also restrained. By this operation, the work 1 is restrained from moving in all directions. In this state, the cylinder device 43 of the cutting device 40 is activated and the deburring blade 41
Is lowered together with the support member 42. In this case, since the deburring blade 41 descends along the front end surface of the work 1, the work 1
While cutting the burr 6 of.

At this time, since the deburring is provided at the left and right sides, it is possible to carry out the deburring without any trouble even if the protruding portion 45 is provided at the center of the work. Cutting device 4
When 0 is completely lowered and the deburring blade 41 is lowered to a position beyond the lower end of the work 1, the cutting device 40 is raised. Next, the cylinder device 38 is driven and the left and right stoppers 37 are released. Then, the cylinder device 34 of the pressing device 32 is driven to raise the pressing member 33. By this operation, the coil spring 14 raises the work 1 together with the frame 8. When the front and rear transport lines 2 are lifted to the same level, the stroke of the piston 12 of the cylinder device 11 of the lifting device 7 is full, so the lift is stopped. In this state, the cylinder devices 18 and 19 of the front and rear stoppers 16 and 17 are driven to release the stoppers 16 and 17. Next, the motor 10 is driven to send the work 1 for which deburring is completed from the lifting device 7 to the front transfer line 2.

[0021]

As described above, according to the present invention,
Since the deburring device is configured so as to form a part of the transfer line, it is not necessary to transfer the work from the transfer line for deburring as in the conventional case, and the work efficiency is not reduced. Further, since the transport line and the deburring device are configured separately, there is no risk of damaging the transport line.

[Brief description of drawings]

FIG. 1 is a perspective view of a deburring device of the present invention,

FIG. 2 is a front view of the deburring device of the present invention,

FIG. 3 is a side view of the deburring device of the present invention.

[Explanation of symbols]

 1 Work 2 Transport Line 3 Frame 4 Roller 5 Deburring Device 7 Elevating Device 10 Motor 11 Cylinder Device 16, 17 Stopper 31 Stopper (Regulating Means) 32 Pressing Device 40 Cutting Device

Claims (5)

[Claims] 1. A work is placed on a carrying line and carried, and is provided at a predetermined position on the carrying line, constitutes a part of the carrying line, and is located above the carrying line and below the carrying line. The position of the workpiece can be selected and the transport is stopped when it reaches the lifting means, the longitudinal positioning is performed to restrain the movement in the longitudinal direction, the lateral displacement of the workpiece is restrained, and The work placed on the elevating means is pressed down from above by the pressing means provided above the means, and is lowered together with the elevating means, and when the work is lowered to a predetermined position, the descent of the work is regulated by the regulating means. By restraining the vertical displacement of the work by the pressing means and the regulating means, the cutting burr remaining in the state where the cutting means is brought into contact with the side surface of the work and protruding to the side surface of the work is cut. Burr cutting method of casting characterized. 2. An elevating means capable of selecting an upper position where a work is placed and continuous with the transfer line and a position lower than the transfer line, and an elevating unit provided above the elevating table. Pressing means for lowering the work placed on the means together with the elevating means while pressing the work from above, and regulating means provided under the elevating means for contacting the lower surface of the work when the work descends and regulating the descent of the work. And a cutting means for abutting the side surface of the work held by the pressing means and the regulating means and cutting the remaining casting burr protruding from the side surface of the work. 3. The burr cutting device for a cast product according to claim 2, wherein the wide part of the work is directed upward and the cutting means is moved downward to cut the burr. 4. A burr cutting device for cast products, wherein the elevating means is provided with positioning means for positioning the work at a predetermined position. 5. A method and apparatus for cutting a cast product, characterized in that the ascending / descending means comprises an urging means for urging the ascending / descending means upward and an ascending restricting means for restricting a transition to the upper position or higher. .