WO2015136793A1

WO2015136793A1 - Method for removing burr from molded article, burr removing table for molded article, and burr removing apparatus for molded article

Info

Publication number: WO2015136793A1
Application number: PCT/JP2014/081852
Authority: WO
Inventors: 昭一大熊; 努大内; 武士加藤
Original assignee: キョーラク株式会社
Priority date: 2014-03-12
Filing date: 2014-12-02
Publication date: 2015-09-17
Also published as: JP2015171796A; JP6287386B2

Abstract

Provided are: a method for removing burrs from molded articles, said method making it possible to remove the burrs in a small operation range, and furthermore, making it possible to simplify constitutions and operations of pressing the molded articles; a burr removing table for molded articles; and a burr removing apparatus for molded articles. A burr removing table (30) for a molded article (11) is provided with: a base body (31); a placing table (32), which is rotatably provided on the base body (31), and which has the molded article (11) placed thereon; and a clamp (35) that is provided above the placing table (32) such that the clamp can move in the vertical direction. The clamp (35) presses the molded article (11) to the placing table (32) when removing a burr (13) from the molded article (11) placed on the placing table (32), and the placing table (32) rotates such that the burr (13) can be removed from the molded article (11).

Description

Deburring method for molded product, deburring table for molded product, and deburring device for molded product

The present invention relates to a deburring method for a molded product, a deburring base for the molded product, and a deburring device for the molded product.

Conventionally, various techniques for mechanically removing burrs from a synthetic resin molded product manufactured by blow molding or the like have been proposed (for example, see Patent Document 1).

FIG. 5 is a diagram showing a basic configuration of a conventional deburring table.
As shown in FIG. 5, the deburring base 100 is a device for removing a burr 102 formed on a parting line (a molding die division position) of a molded product 101. The deburring base 100 includes a base body 103, a mounting base 105 provided on the base body 103, and three

pressing portions

106a, 106b, and 106c. These three

pressing portions

106a, 106b, 106c are arranged at substantially equal intervals from one side of the mounting table 105 to the other side. Further, each of the

pressing portions

106a, 106b, and 106c can operate between a pressing position that presses the product portion 107 of the molded article 101 and a release position that rotates upward from the pressing position.

FIG. 6 is a diagram for explaining a deburring method using the conventional deburring table 100 shown in FIG.

As shown in FIG. 6A, in this deburring method, first, the molded article 101 with the burr 102 is gripped by the arm portion 108 of the robot arm device and placed on the placing table 105 on the deburring table 100. To do. Next, the three

pressing portions

106 a, 106 b, and 106 c are moved to the pressing position, and the molded product 101 is pressed against the mounting table 105.

Subsequently, as shown in FIG. 6 (b), a knife 111 is attached to the arm portion 108, and a cut 112 is made at the base of the burr 102 with this knife 111. At this time, in order to avoid interference between the moving knife 111 and the

pressing portions

106a, 106b, and 106c, the

pressing portions

106a, 106b, and 106c are appropriately moved to the release positions.

Next, as shown in FIG. 6C, a burr grip band 113 is attached to the arm portion 108, and one end portion 102 a of the burr 102 is gripped by the burr grip band 113. Then, in a state where the pressing portion 106a on one side of the mounting table 105 is moved to the release position, the arm portion 108 pulls one end 102a of the burr 102 to the other side of the mounting table 105, thereby Strip burr 102 until the front. Similarly, by moving the arm part 108 further to the other side of the mounting table 105 in a state where the central pressing part 106b is moved to the release position, the burr is moved to the front of the pressing part 106c on the other side of the mounting table 105. 102 is peeled off.

Finally, as shown in FIG. 6D, the other end of the burr 102 is moved by further moving the arm 108 to the other side of the mounting table 105 in a state in which the pressing portion 106c is moved to the release position. 102b is stripped off. This completes the deburring.

Thus, in the conventional deburring method, each of the three

pressing portions

106a, 106b, 106c sequentially operates to the release position in order to prevent interference with the burr 102 to be peeled off. Then, after the peeled burr 102 passes, the three

pressing portions

106a, 106b, and 106c operate again to the pressing position to press the molded product 101. Thereby, even if one of the three

pressing portions

106a, 106b, and 106c moves to the release position, the remaining two can press the molded product 101 against the mounting table 105. For this reason, in the process of removing the burr 102 from the molded product 101, the molded product 101 can be pressed against the mounting table 105 at all times.

By the way, from the viewpoint of reducing manufacturing costs and improving productivity, there is a demand for a technique for mechanically removing burrs with a simple process. However, in the conventional deburring technique described above, in order to completely remove the burr 102 from the molded product 101, it is necessary to operate the arm portion 108 in a wide range from one side of the mounting table 105 to the other side. Further, in order to constantly press the molded product 101 against the mounting table 105, three

pressing portions

106a, 106b, and 106c that operate in a complicated manner are required.

Japanese Patent No. 4054486

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a molded product that can remove burrs in a narrow working range, and that can hold down the molded product and simplify its operation. An object of the present invention is to provide a deburring method, a deburring base for molded products, and a deburring device for molded products.

The present invention is grasped by the following composition.
(1) A deburring method for a molded product according to the present invention includes a step (A) of placing a molded product on the mounting table, a step (B) of pressing the molded product on the mounting table against the mounting table by a clamp, And a step (C) of removing a burr of the molded product with a robot arm device while rotating the mounting table.

(2) In the deburring method for a molded product according to the present invention, in the step (C) of the configuration (1), the mounting table is rotated while the molded product is pressed against the mounting table by a clamp. Features.

(3) In the deburring method for a molded product according to the present invention, the step (C) of the configuration of (1) or (2) includes a step (1) in which the first part of the burr of the molded product is removed by a robot arm device. Rotating the mounting table at a rotation angle of 90 ° or more and 180 ° or less to change the deburring position of the molded product (2), and the robot arm next to the burr of the molded product pressed against the mounting table by the clamp And (3) stripping with an apparatus.

(4) In the deburring method for a molded product according to the present invention, in the step (C) of the configuration (1) or (2), the mounting table is continuously rotated 360 ° in synchronization with the operation of the robot arm device. , It is characterized by removing all burrs from the molded article at once.

(5) The molded product deburring table of the present invention is provided on the base, the base so as to be rotatable, the base on which the molded product is placed, and the upper part of the base so as to be movable in the vertical direction. And when the clamp removes the burr from the molded product placed on the mounting table, the molded product is pressed against the mounting table so that the mounting table can remove the burr from the molded product. And rotating.

(6) The deburring table of the molded product according to the present invention has a configuration in which the clamp has a rotation axis coaxial with the rotation axis of the mounting table in the configuration of the above (5), and the molded product is pressed against the mounting table. It is characterized by being able to rotate as the mounting table rotates.

(7) The deburring base for the molded product according to the present invention has a configuration of (5) or (6) above, so that the mounting table can partially remove the burrs partially from the molded product. It is characterized by rotating at a rotation angle of less than °.

(8) The deburring base of the molded product of the present invention is continuously 360 so that the mounting table can remove all the burrs from the molded product at the same time in the configuration of (5) or (6). It is characterized by rotating.

(9) A deburring device for a molded product according to the present invention includes any one of the above deburring tables (5) to (8), and a robot arm device that is disposed adjacent to the deburring table and removes deburring from the molded product. And.

According to the present invention, it is possible to remove burrs in a narrow working range, and further, a configuration for pressing a molded product and a method for deburring a molded product that can simplify the operation thereof, a deburring base for the molded product, and a burr for the molded product. A take-off device is provided.

It is a side view of the deburring apparatus of embodiment which concerns on this invention. It is a top view of the deburring stand shown by FIG. (A) is explanatory drawing of a process (A), (b) is explanatory drawing of a process (B), (c) is explanatory drawing of a cutting process. (A) is explanatory drawing of the stage (1) of a process (C), (b) is explanatory drawing of the stage (2) of a process (C), (c) is explanatory drawing of the stage (3) of a process (C). It is. It is a figure which shows the basic composition of the conventional deburring stand. It is a figure explaining the conventional deburring method, (a) is a figure which shows the process of mounting a molded article, (b) is a figure which shows the process of making a notch in the base of a burr | flash, (c) is one side of a burr | flash. The figure which shows the process of peeling off the edge part of this, (d) is a figure which shows the process of peeling off the other edge part of a burr | flash.

Hereinafter, with reference to the attached drawings, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail. The same number is attached | subjected to the same element through the whole description of embodiment.

(Configuration of deburring device 10)
The configuration of the deburring device 10 will be described with reference to FIG.
As shown in FIG. 1, the deburring device 10 includes a robot arm device 20 and a deburring table 30. The product 11 to be manufactured is formed by blow molding or the like using a synthetic resin, and has a product part (in this example, a long air-conditioning hollow duct) 12. A burr 13 is formed on the parting line of the product portion 12. The outer shape of the burr 13 is formed in a substantially rectangular shape (see FIG. 2) surrounding the product part 12 in plan view.

It should be noted that the configuration of the “molded product” in the present invention is not particularly limited to this example, and is arbitrary as long as burrs are formed on the parting line of the product portion.

(Configuration of robot arm device 20)
The robot arm device 20 is a so-called multi-axis robot that is disposed adjacent to the deburring table 30 and includes a working arm unit 21. For example, the robot arm device 20 may be a six-axis drive robot that moves the arm unit 21 in the vertical direction, the horizontal direction, and the front-back direction. A plurality of types of functional parts can be selectively attached to the tip of the arm portion 21 according to the type of work. For example, FIG. 1 shows an example in which a burr grip band 22 for gripping the burr 13 is attached to the distal end portion of the arm portion 21. (See FIG. 3A), knife 25 (see FIG. 3C), and the like can be replaced.

(Configuration of deburring table 30)
The deburring base 30 includes a base 31, a mounting base 32 provided on the base 31, and a lower drive unit 33 that rotates the mounting base 32. Further, the deburring table 30 includes a clamp 35 provided above the mounting table 32 so as to be movable in the vertical direction, and an upper drive unit 36 for moving the clamp 35 in the vertical direction.

The mounting table 32 is supported by a rotating shaft 37 so as to be rotatable with respect to the base 31. In this example, the planar shape of the mounting table 32 is a substantially circular planar shape (see FIG. 2), but the shape is arbitrary as long as the molded product 11 can be placed.

The lower drive unit 33 is provided inside the base 31 and rotates the rotation shaft 37 and the mounting table 32 intermittently at an arbitrary rotation angle (for example, a rotation angle of 90 ° to 180 °), or rotates. The shaft 37 and the mounting table 32 can be continuously rotated 360 °. The lower drive unit 33 can be selected from various drive means such as an electric motor and a hydraulic motor.

The clamp 35 includes a pressing portion 35a that presses the molded product 11 against the mounting table 32, and a rotating shaft 35b that is coaxial with the rotating shaft 37 of the mounting table 32 and has a lower end connected to the pressing portion 35a. In this example, a pressing portion 35a (see FIG. 2) whose planar shape is formed in a substantially rectangular shape in accordance with the shape of the product portion 12 is shown. The planar shape of the pressing portion 35a is that the molded product 11 is placed on the mounting table 32. Any shape can be used as long as it can be pressed.

The rotating shaft 35b rotates the pressing portion 35a in a state where the molded product 11 is pressed as the mounting table 32 rotates. In this example, a substantially inverted L-shaped support body 38 is provided on the upper surface of the base 31, and the upper drive unit 36 formed of a cylinder unit is fixed to the support body 38. And the center part of the holding | suppressing part 35a is rotatably attached to the lower end of the rotating shaft 35b which also serves as the rod of the upper drive part 36.

The deburring base 30 and the robot arm device 20 configured as described above are connected to the control unit 41. The control unit 41 controls the operation of each part of the deburring base 30 and the robot arm device 20. More specifically, the control unit 41 controls the lower drive unit 33 to control the operation of the mounting table 32, and controls the upper drive unit 36 according to the operation of the mounting table 32 to operate the clamp 35. To control. The control unit 41 controls the operation of the arm unit 21 of the robot arm device 20 in accordance with the operation of the mounting table 32 and the operation of the clamp 35. Further, by combining the 6-axis drive robot (robot arm device 20) and the deburring base 30 (the deburring device 10 is substantially 7-axis control), fine control can be performed in a shorter time than the operation with a normal robot arm. High-precision burr processing can be performed.

(Method for deburring molded article 11)
Next, a deburring method will be described with reference to FIGS.
This deburring method is a method of removing the burr 13 (see FIG. 1) from the molded article 11 (see FIG. 1) by using the deburring apparatus 10 (see FIG. 1). (B) and a process (C) are included.

(Process (A))
As shown in FIG. 3A, in the step (A), the molded product 11 is mounted on the stopped mounting table 32 by the mounting jig 23 mounted on the tip of the arm unit 21 (arrow ( 1)). At this time, the product portion 12 is placed directly below the clamp 35 so that the longitudinal direction of the molded product 11 is aligned with the longitudinal direction of the clamp 35.

(Process (B))
As shown in FIG. 3B, in the step (B), the clamp 35 is moved downward by the upper drive unit 36, and the product portion 12 of the molded product 11 on the mounting table 32 is mounted by the pressing portion 35 a of the clamp 35. Press against the table 32 (arrow (2)).

Next, as shown in FIG. 3C, the tip of the arm portion 21 is replaced with a knife 25, and using this knife 25, cuts 42 a and 42 b are formed in the molded product 11 pressed against the mounting table 32. To do. At this time, a cut 42a is formed at the base of the burr 13 along the parting line. In addition to this, a notch for dividing the burr 13 into two in the longitudinal direction (in this example, a notch that is parallel to the short side of the burr 13 and located at the approximate center of the burr 13) 42b is sandwiched between the product part 12. 2 are formed.

(Process (C))
Step (C) is composed of, for example, the following steps (1) to (3).

(Stage (1))
As shown in FIG. 4 (a), in step (1), the tip of the arm portion 21 is replaced with a burr grip band 22, and this burr grip band 22 is moved to one side of the mounting table 32 (arrow (3)). ). Then, one end 13a in the longitudinal direction of the burr 13 is grasped by the burr grip band 22 and the arm part 21 is moved to remove a part (substantially half) 15R of the burr 13 according to the

cuts

42a and 42b (arrow (4) )). Here, the part 15R of the burr 13 corresponds to the “first part of burr” according to the present invention.

(Stage (2))
As shown in FIG. 4B, in stage (2), the mounting table 32 is rotated at an arbitrary rotation angle to change the deburring position of the molded product 11. In this example, the mounting table 32 is rotated 180 °, and the remaining portion 15L of the burr 13 positioned on the other side of the mounting table 32 is inverted 180 ° from the other side of the mounting table 32 to one side (arrow (5)). ). At this time, in a state where the molded product 11 is pressed against the mounting table 32 by the pressing portion 35a of the clamp 35, that is, the product portion 12 is sandwiched between the pressing portion 35a and the mounting table 32, the mounting table 32 is rotated. Made.

(Stage (3))
As shown in FIG. 4C, in the step (3), the burr grip band 22 is moved again to one side of the mounting table 32 (arrow (6)). Then, the other end portion 13b in the longitudinal direction of the burr 13 is grasped by the burr grip band 22, and the arm portion 21 is moved (arrow (7)). Thereby, the remaining part 15L of the burr 13 (corresponding to the “part following the burr” in the present invention) 15L in the molded product 11 pressed by the pressing part 35a is removed. Thus, the deburring from the molded product 11 is completed, and the product portion 12 from which all the burrs 13 are removed is obtained.

In this example, step (2) and step (3) are each performed once. However, by performing step (2) and step (3) two or more times, three or more burrs 13 are formed. It can also be divided and removed. Further, the rotation angle of the mounting table 32 is not limited to 180 °, and can be set to an arbitrary angle according to the specifications of the molded product.

(Effect of embodiment)
The effects of the embodiment described above will be described.
According to the present embodiment, the mounting table 32 is rotated so that the burr 13 can be partially removed sequentially from the molded product 11, so that the arm unit 21 is operated in a narrow range on one side of the mounting table 32. The burr 13 can be completely removed from the molded product 11. That is, it is not necessary to operate the arm part widely from one side of the mounting table to the other side as in the prior art, and the movable range (working range) of the arm part 21 is indicated by the arrows (3), (4) and the arrow (6). , (7) (see FIG. 4).

Further, in the process of removing the burr 13, the molded product 11 can be firmly pressed against the mounting table 32 by the clamp 35 having a simple structure and simple operation.

Therefore, according to the present embodiment, it is possible to remove the burr 13 with the arm portion 21 that operates in a narrow movable range, and to provide a configuration for pressing the molded product 11 and a deburring technique that can simplify the operation. Can do.

Further, since the clamp 35 can be rotated with the rotation of the mounting table 32 while pressing the molded product 11, the molded product 11 is firmly pressed against the mounting table 32 while the mounting table 32 is rotating. I can keep it.

(Another example of deburring method for molded product 11)
In the deburring method described above, in the step (C), the method of partially removing the burr 13 from the molded article 11 sequentially in the steps (1) to (3) is exemplified. In addition to this, all of the burr 13 can be removed from the molded article 11 at a time.

For example, in the step (C), instead of the above-described steps (1) to (3) (see FIGS. 4 (a) to (c)), the mounting table 32 is continuously synchronized with the operation of the arm portion 21. In general, the burr 13 may be removed from the molded product 11 at a time by rotating 360 °. In this case, the notch 42b for dividing the burr 13 into two in the longitudinal direction may be one place.

Also in such a deburring method, it is possible to remove the burr 13 by the arm portion 21 that operates in a narrow movable range, and to provide a deburring technique that can press down the molded product 11 and simplify its operation. Can do.

As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

For example, in the embodiment, the example in which the clamp 35 is rotated in accordance with the rotation of the mounting table 32 has been described. However, before the mounting table 32 rotates, the clamp 35 is moved upward from the molded product 11, and the mounting table 32 is moved. After stopping, the clamp 35 can be moved downward again to hold down the molded product 11.

10 Deburring device 11 Molded product 13 Burr 15R Part (first part)
15L remaining part (next part)
20 Robot arm device 30 Deburring base 31 Base 32 Mounting base 35 Clamp 35b Rotating shaft 37 Rotating shaft

Claims

A deburring method for molded products,
A step (A) of mounting the molded product on a mounting table;
A step (B) of pressing the molded product on the mounting table against the mounting table by a clamp;
A deburring method for a molded product, comprising: a step (C) of removing a burr of the molded product with a robot arm device while rotating the mounting table.
2. The deburring method for a molded product according to claim 1, wherein in the step (C), the mounting table is rotated in a state where the molded product is pressed against the mounting table by the clamp.
The step (C) includes removing the first part of the burr of the molded article by the robot arm device (1);
Rotating the mounting table at a rotation angle of 90 ° to 180 ° and changing the deburring position of the molded product (2);
3. The molded product according to claim 1, further comprising a step (3) of stripping the next part of the burr of the molded product pressed against the mounting table by the clamp with the robot arm device. Deburring method.
3. In the step (C), the mounting table is continuously rotated 360.degree. In synchronism with the operation of the robot arm device, and all burrs are removed from the molded product at one time. The deburring method of the molded article described in 1.
A deburring table for molded products,
A substrate;
A mounting table that is rotatably provided on the base body and mounts the molded product;
A clamp provided above the mounting table and movably in the vertical direction,
When the clamp removes the burr from the molded product placed on the mounting table, the molded product is pressed against the mounting table,
A deburring base for a molded product, characterized in that the mounting table rotates so that the deburring can be removed from the molded product.
The clamp has a rotation axis that is coaxial with a rotation axis of the mounting table, and can be rotated with the rotation of the mounting table in a state where the molded product is pressed against the mounting table. 5. A deburring base for the molded product according to 5.
The molded product according to claim 5 or 6, wherein the mounting table rotates at a rotation angle of 90 ° or more and 180 ° or less so that burrs can be partially removed from the molded product sequentially. Deburring stand.
The molded product deburring table according to claim 5 or 6, wherein the mounting table is continuously rotated 360 ° so that all of the burrs can be removed from the molded product at one time.
A deburring table according to any one of claims 5 to 8,
A deburring device for a molded product, comprising: a robot arm device that is arranged adjacent to the deburring table and removes the burrs of the molded product.