JPH07110413B2 - Deburring device with cutting blade - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring device with a cutting edge, and more particularly to a deburring device with a cutting edge for removing burrs formed on a work such as a core or a cast product.

[0002]

2. Description of the Related Art As is well known, burrs are usually formed on the inner surface of a core or a cast-molded product in the casting / molding process, and these burrs are used to obtain a high quality final product. Must be completely removed. Then, this deburring work uses a dedicated machine instead of the conventional manual work.

As a specific example of this type of deburring apparatus, for example, Japanese Utility Model Publication No. 63-44215 discloses a deburring press type structure having upper and lower cutting blades. This deburring press die forms an upper die cutting edge that removes burrs on the upper surface of the product on an upper mold that can move up and down, and removes burrs on the lower surface of the product on a lower die that is installed at a position facing the upper mold. A lower cutting edge,
A product placing table that can move up and down is provided, and a product contact portion that contacts the deburred product of the upper surface and positions the product is formed on the upper mold.

According to such a construction, the work placed on the lower product mounting table is first removed by the upper die cutting blade to remove burrs on the work upper surface as the upper die is lowered. The work is positioned by the product contact portion of the mold and then pushed down, so that the burrs on the lower surface of the work are removed.

[0005]

However, as shown in the drawings of the publication, the deburring press die described above has an upper die cutting blade and a lower die so as to surround the entire product mounting table. Due to the arrangement of the cutting blade, there is a problem that only a single work can be deburred and a plurality of works cannot be deburred at the same time. Therefore, in order to deburr a plurality of works simultaneously, a plurality of deburring press dies are required, which is extremely disadvantageous in terms of installation location and cost.

Further, since the deburring press die disclosed in the above publication deburrs both upper and lower surfaces of a work, not only the upper die cutting blade and the lower die cutting blade are indispensable constituent requirements. Forming the product contact portion in succession with the upper die cutting edge is also an indispensable constituent element, which causes a problem that the apparatus becomes large and complicated.

The present invention has been made in view of the above circumstances. It is possible to simultaneously deburr a plurality of works while reducing the size and simplification of the apparatus. It is a technical object to provide a deburring device with a cutting edge capable of achieving a smaller space and a lower cost.

[0008]

The features of the deburring device with a cutting edge according to the present invention, which have been made in order to achieve the above-mentioned technical objects, are a movable table having work supporting portions for supporting a work formed at a plurality of positions. A reciprocally attached to a base, forming a plurality of through holes around the work support portion in the movable table, a plurality of cutting blades having a shape corresponding to the contour of a plurality of works, The movable table is fixedly installed on the base through a plurality of columns respectively inserted through a plurality of through holes, and a pressing force is simultaneously applied to the plurality of works supported by the respective work supporting parts to apply the pressing force. This is provided with a pressing member that moves the movable table.

In order to manually operate the deburring device with a cutting edge, the movable table is urged by the elastic urging means toward the arranging position of the pressing member and the pressing force is applied. It is preferable to connect the member to an arm rotatably attached to the movable table and to provide a handle for rotating the arm.

In order to automatically operate the deburring device with a cutting edge, it is preferable to provide a reciprocating driving means such as a hydraulic type or a pneumatic type that reciprocates the pressing member.

Further, in order to perform deburring accurately, it is preferable to attach a plurality of positioning bodies to the work supporting portion of the movable table for engaging with a specific portion of the work and performing positioning.

[0012]

According to the above-mentioned means, a plurality of works having the same shape or different shapes are supported by the respective work supporting portions of the movable table, and in such a state, a pressing force is simultaneously applied to the plurality of works by the pressing member. Then, the movable table is moved by this pressing force.

In this case, the plurality of cutting blades having a shape corresponding to the contour of each work are fixed to the base through the columns inserted into the through holes of the movable table, and thus are supported by the movable table. Each of the workpieces can be retracted and retracted with respect to each cutting edge. Therefore, by retracting each workpiece that originally protruded with respect to each cutting edge with respect to each cutting edge as the movable table moves. , Each work passes through each cutting edge, and when this work passes, deburring of each work is simultaneously performed by each cutting edge.

[0014]

Embodiments of the deburring device with a cutting edge according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing the entire configuration of a deburring device 1 with a cutting blade according to this embodiment. This deburring device 1 is roughly classified into a frame 2 and an installation table 3 fixed to the upper end thereof. A base 4, a movable table 5 which is held above the base 4 so as to be vertically movable at predetermined intervals, and work supports 6 arranged in parallel at a plurality of positions on the movable table 5. And a plurality of cutting blades 8 ... 8 fixedly installed above the base 4 via a plurality of standing columns 7 ... 7 and arranged so as to surround the work supporting portions 6 ... 6, respectively. Have.

The brackets 9 and 9 fixed to both ends of the movable table 5 are connected to the arms via rotary shafts 10 and 10.
The pressing members 11 and 11 are rotatably mounted, and press the work across the tips of both arms 11 and 11.
12 is fixed, and further, handles 13 and 13 for gripping by an operator are provided on the outside of the tips of both arms 11 and 11. The pressing member 12 is a connecting rod 14 that connects both arms 11, 11.
The pressing projections 15 ... 15 that come into contact with and separate from each work are formed on one side surface of the.

Between the installation table 3 of the base 4 and the movable table 5, springs 16 ... 16 are provided at four places, and the springs 16 ... 16 move the movable table 5 upward. Elastically biased. More specifically, as shown in FIG. 6, the rod 18 is vertically movably inserted into a cylinder tube 17 fixed to the installation base 3 of the base 4, and the movable table 5 is fixed to the upper end of the rod 18. Then, the spring 16 is wound around the outer circumference of the rod 18.

Further, a burr storage case 19 is attached to the base 4 (see FIG. 1), and openings 20, 20 communicating with the burr storage case 19 are formed in the installation base 3 of the base 4. When the burrs removed from the work by the deburring work fall down from the respective work supporting portions 6 ... 6, they are dropped and stored in the burr storage case 19 through the openings 20, 20 of the installation table 3. It is like this.

On the other hand, as shown in FIGS. 2 and 3, each work supporting portion 6 formed on the movable table 5 is used for positioning as a temporary guide when a work to be described later is placed. The rough guide body 21 fixed to the movable table 5 and the movable table 5 used to precisely position the front of the work.
Front positioning bodies 22 and 22 fixed to the movable table 5, and a rear positioning body 23 fixed to the movable table 5 for strictly positioning the rear of the work.
The front-side positioning body 22 has a small-diameter columnar projection 25 fixed on the upper surface of a large-diameter columnar projection 24, while the rear-side positioning body 23 has a medium-diameter columnar projection on the upper surface of a rectangular wide flat plate 26.
27 is fixed. The upper end surface of the small-diameter columnar protrusion 25 of the front side positioning body 22 is an inclined surface (see FIG. 6 for details).

Further (see FIGS. 2 and 3), the cutting blades 8 arranged so as to surround the respective work supporting portions 6 are
Each workpiece support 6 has a total of three cutting blades including a cutting blade 8 located on the right side, a cutting blade 8 located on the left side, and a cutting blade 8 located on the front side. Then, through holes 28 ... 28 are formed at a plurality of positions of the movable table 5 corresponding to these cutting blades 8 ... 8, and the lower end of the movable table 5 is inserted into these through holes 28 ... The cutting edges 8 ... 8 are fixed to the upper ends of the upright columns 7 ... The front cutting blade 8 is fixed to the upper end of a plate-shaped standing column 7 elongated in the longitudinal direction via a spacer (not shown). One of the cutting blades 8 and 8 is installed at a higher position in a state of being continuously overlapped with the upper surface of the front end portion of the cutting blade 8, and the contour formed by the blade surface of each cutting blade 8 ... It becomes a continuous shape that matches the shape.

An arm for rotating the pressing member 12
As shown in FIG. 6, the reference numeral 11 is L-shaped, and the pressing member 12 extends across the bent portion of the arm 11 and the movable table 5.
A tension coil spring 30 for urging the arm in a direction away from the movable table 5, that is, upward is connected to the arm.
As shown in FIG. 5, the rotary spindle 10 of 11 is movable table 5
Are rotatably supported by brackets 9 on both ends of the bearing.

Next, the operation of the above-described embodiment will be described. In the following, the case where a core is used as a work will be described as an example.

First, the movable table 5 has springs 16 ... 16
Is located at the upper end by the urging force of
4 under the condition that they are positioned above by the urging force of the tension coil spring 30, as shown in FIG. 4, four (4 in the illustrated example) work support portions 6 ... 6 of the movable table 5 are respectively provided with four pieces. Put the core 40 ... 40.

Regarding the placement work of the core 40, first, the rear end of the core 40 is brought into contact with the rough guide body 21 shown in FIG. By engaging the front end portion of 40 with the small-diameter columnar projections 25, 25 of the front side positioning body 22 and engaging the rear end portion thereof with the medium-diameter columnar projection 27 of the rear side positioning body 23, it is possible to accurately position it. Place it.

Next, when the operator grips the handles 13 and rotates the arm 11, the pressing member 12 comes close to the movable table 5, and as a result, as shown in FIG. 5 and FIG. The pressing projection 15 of the pressing member 12 contacts the upper surface of the core 40. At this time, all of the four pressing projections 15 ... 15 simultaneously contact the upper surfaces of the four cores 40.

From this state, when the operator further pushes down the handles 13 and 13, as shown in FIG.
The movable table 5 descends together with the cores 40 ... 40, but the cutting edge 8
... 8 maintains a fixed position by the columns 7 ... 7, so the core 40
The 40 passes through the side edges of the cutting blades 8 ... 8 from above, and at the time of this passage, the burrs 41 ... 41 formed on the side surfaces of all the cores 40 ... 40 are the cutting blades 8 ... 8. Is cut off by the lateral edge of.

Then, the cut burrs 41 ... 41 drop down from the through holes 28 ... 28 of the movable table 5 and further through the openings 20, 20 formed in the installation table 3 of the base 4. It is dropped and stored in the Bali storage case 19.

After that, when the operator releases the pushing down force acting on the handles 13 and 13, the movable table 5 is moved upward by the urging force of the springs 16 ... 16 and the pressing member 12 is pulled by the tension coil spring. The urging force of 30 separates them upward, and as a result, the subsequent deburring operation is performed again in the same manner as above.

In this case, when the core 40, which is a workpiece, is in a high temperature state, it expands in the longitudinal direction due to heat. In order to deal with this, it is preferable to configure the positioning body as follows.

That is, as shown in FIGS. 8 and 9, a groove 35 extending along the longitudinal direction of the work is formed in the rectangular wide flat plate 26 of the rear side positioning body 23, and the sliding plate 36 is slidable in this groove 35. The medium-diameter columnar protrusions 27 are fixed to the sliding plate 36 by engaging them, and the screw portion 27a below the medium-diameter columnar protrusions 27 is inserted into the large-diameter hole 51 of the mounting plate 5a fixed to the movable table 5. The nut 52 is loosely fitted to the nut 52, and the nut 52 is screwed from below. The washer 53 of the nut 52 is in a state of being separated from the bottom surface 5b of the recess 5b of the mounting plate 5a by a slight dimension.

According to this structure, when the front end portion of the core 40 is engaged with the front side positioning body 22, the rear side positioning body 23 does not change even if the core 40 undergoes dimensional change due to heat. Of the sliding plate 36 and the medium-diameter columnar protrusion 27 of the screw part 27a and the large-diameter hole.
By sliding along the groove 35 by the amount of the gap between the core 40 and the groove 51, the rear end of the core 40 is accurately engaged with the medium diameter columnar protrusion 27, which ensures proper positioning of the core 40 at the front and rear ends. It will be done in the department. Further, in this case, it is preferable that the number of the front side positioning bodies 22 is one.

In the above embodiment, the pressing member 1 is manually operated.
The present invention is applied to a deburring device configured to vertically move the core 2, the core 40, and the movable table 5, but in addition to this, a hydraulic cylinder, an air cylinder or the like is used to automatically The listed components may be configured to move up and down. In this case, the pressing member 12
Instead of rotating via the 11, the pressing member 12 may be linearly moved up and down by the vertical movement of the piston rod of the hydraulic cylinder or the air cylinder.

Further, in the above embodiment, the above-listed constituent elements move up and down with respect to the base 4, but instead of this, the above-listed constituent elements move in the left-right direction. It may be configured to move to.

[0033]

Since the deburring device with a cutting edge according to the present invention is constructed as described above, it has the following effects.

That is, according to the deburring device with a cutting edge of the first aspect, the pressing member applies a pressing force to a plurality of works at the same time, and the movable table is moved by the pressing force to move the movable table. Burrs of a plurality of works supported by the work supporting part of the table are simultaneously cut off by a plurality of cutting blades having the same contour, which makes the device larger and more complicated than before. It is possible to easily deburr a plurality of works simultaneously with a single device without inviting, and it is possible to reduce the installation space of the device and reduce the cost.

According to the deburring device with a cutting edge of the second aspect, when the operator operates the handle, the pressing member rotates through the arm to press the work, and the further pressing of the handle presses the work. The member moves the work and the movable table relative to the cutting blade, and the burr of the work is cut off during this relative movement, so the worker only needs to place the work and operate the handle to remove the burr. The work is successively completed in succession, which simplifies the operation and improves work efficiency in the case of manual operation.

According to the deburring device with a cutting blade of the third aspect, since the reciprocating drive means for reciprocating the pressing member is provided, the deburring work can be automated, and further work can be performed. The efficiency will be improved.

According to the deburring device with a cutting edge of the fourth aspect, since a plurality of positioning bodies for engaging with a specific position of the work and performing positioning are attached to the movable table, the work positioning accuracy is improved. However, good quality and accurate deburring work will be performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a deburring device with a cutting edge according to the present invention.

FIG. 2 is a plan view of the deburring device.

FIG. 3 is an enlarged perspective view showing a main part of the deburring device.

FIG. 4 is a perspective view showing an operation of the deburring device.

FIG. 5 is a front view of essential parts showing the operation of the deburring device.

FIG. 6 is a vertical cross-sectional side view of essential parts showing the operation of the deburring device.

FIG. 7 is a vertical cross-sectional side view of essential parts showing the operation of the deburring device.

FIG. 8 is an enlarged vertical cross-sectional side view of essential parts showing a modified example of a positioning body that is a component of the deburring device.

FIG. 9 is an enlarged plan view of the modified example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deburring device with cutting blade 4 Base 5 Movable table 6 Work support 7 Strut 8 Cutting blade 11 Arm 12 Pushing member 13 Handle 16 Elastic biasing means 22 Positioning body 23 Positioning body 28 Through hole 40 Work 41 Burr

Claims (4)

[Claims] 1. A movable table having work supporting portions for supporting a work formed at a plurality of locations is reciprocally attached to a base, and a plurality of through holes are formed around the work supporting portion of the movable table. , A plurality of cutting blades having a shape corresponding to the contours of a plurality of workpieces are fixedly installed on the base through a plurality of columns respectively inserted into a plurality of through holes of the movable table, and each of the workpieces is A deburring device with a cutting edge, comprising: a pressing member that simultaneously applies a pressing force to a plurality of works supported by a supporting portion to move the movable table. 2. The movable table is urged by an elastic urging means toward the arranging position of the pressing member, and the pressing member is connected to an arm rotatably attached to the movable table, and the arm is connected to the arm. The deburring device with a cutting edge according to claim 1, further comprising a handle that is rotated. 3. The deburring device with a cutting edge according to claim 1, further comprising reciprocating drive means for reciprocating the pressing member. 4. A cutting blade according to claim 1, 2 or 3, wherein a plurality of positioning bodies that engage with a specific portion of the work to perform positioning are attached to the work supporting portion of the movable table. Deburring device.