WO2019092890A1

WO2019092890A1 - Sizing device

Info

Publication number: WO2019092890A1
Application number: PCT/JP2017/040818
Authority: WO
Inventors: 伸二林; 健治武内
Original assignee: 住友電工焼結合金株式会社
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2019-05-16
Also published as: KR102270675B1; JPWO2019092890A1; JP6895205B2; KR20200078489A

Abstract

The sizing device is provided with a turntable having multiple accommodation holes, each for accommodating a workpiece, and turning about a rotary shaft so as to convey the workpiece in each of the accommodation holes to a through-hole in a die as each of the accommodation holes moves from a workpiece supply position to a workpiece takeout position. The sizing device is provided with: multiple identification information holding units respectively disposed in the vicinity of an accommodation hole in the turntable and corresponding to the accommodation hole; a supply-side input unit for inputting a tag code into the identification information holding unit corresponding to the accommodation hole at the workpiece supply position; a takeout-side read unit for reading a tag code input into the identification information holding unit corresponding to the accommodation hole at the workpiece takeout position; a memory part for storing a collation tag code obtained by calculating, in advance, rotation position information on the movement of the accommodation hole from the workpiece supply position to the workpiece takeout position; and a pass/fail determination part for determining, from the consistency between the tag codes, the pass/fail status of the workpiece by means of collating the tag code read by the takeout-side read unit against the collation tag code.

Description

Sizing device

The present invention relates to a sizing device.

The sizing device of Patent Document 1 is known as a device for performing dimensional correction of a sintered body in the manufacturing process of sintered parts. This sizing apparatus is provided with a plurality of work insertion holes for housing sintered parts, and includes a turntable that rotates around a rotation axis. The turntable moves the work insertion hole, the press unit (above the die), and the work discharge unit in this order by the rotation. Then, the sintered component to be sized is taken into the workpiece insertion hole at the workpiece input unit, conveyed to the pressing unit, and pressurized and sized by the upper and lower punches inserted into the inside of the die. The sintered part after sizing is again taken into the work insertion hole and conveyed to the work discharge unit.

JP, 2011-080113, A

The sizing device of the present disclosure is
A plurality of storage holes for storing workpieces are provided, and the workpieces in the respective storage holes are passed through the die through holes while rotating around the rotation axis and moving the storage holes from the workpiece supply position to the workpiece removal position. A sizing device provided with a turntable for transporting
A plurality of identification information holding units provided in the vicinity of the storage holes in the turntable and corresponding to the storage holes;
A supply side input unit for inputting a tag code to the identification information holding unit corresponding to the storage hole at the work supply position;
A removal side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work removal position;
A storage unit for storing a verification tag code obtained by calculating in advance rotational position information of the storage hole from the workpiece supply position to the workpiece removal position;
And a pass / fail determination unit that checks the tag code read by the takeout-side reading unit against the comparison tag code and determines the quality of the work based on the match between the two tag codes.

It is a schematic block diagram of the sizing device concerning an embodiment.

[Problems to be solved by the present disclosure]
Normally, when the turntable is stopped in the middle of rotation due to a defect, the work on the turntable is not transported to the downstream of the sizing device but is all collected. When the turntable is restarted, the turntable is moved from the stop position to an appropriate position by manual operation, but there is a possibility that the turntable may be moved to an inappropriate position by an erroneous operation. If it is restarted after being moved to an inappropriate position, an unsized unsized product or multiple sized multiple sized products may be produced. However, although it is possible to suppress the conveyance of the unsizing product and the sizing product to the downstream side, the work of collecting the work on the turntable every time the turntable is stopped while rotating is very complicated.

Therefore, it is an object of the present invention to provide a sizing device capable of reducing the work of collecting work on a turntable while suppressing the transport of unsizing products and sizing products downstream to a plurality of times.

[Effect of the present disclosure]
The sizing device of the present disclosure can reduce the work of collecting the work on the turn table while suppressing the downstream transportation of the unsized product and the multiple sized products.

Description of the embodiment of the present invention
First, the embodiments of the present invention will be listed and described.

(1) A sizing device according to one aspect of the present invention is
A plurality of storage holes for storing workpieces are provided, and the workpieces in the respective storage holes are passed through the die through holes while rotating around the rotation axis and moving the storage holes from the workpiece supply position to the workpiece removal position. A sizing device provided with a turntable for transporting
A plurality of identification information holding units provided in the vicinity of the storage holes in the turntable and corresponding to the storage holes;
A supply side input unit for inputting a tag code to the identification information holding unit corresponding to the storage hole at the work supply position;
A removal side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work removal position;
A storage unit for storing a verification tag code obtained by calculating in advance rotational position information of the storage hole from the workpiece supply position to the workpiece removal position;
And a pass / fail determination unit that checks the tag code read by the takeout-side reading unit against the comparison tag code and determines the quality of the work based on the match between the two tag codes.

According to the above configuration, it is possible to reduce the work of collecting the work on the turn table while suppressing the downstream transport of the sizing apparatus of the unsized product which has not been sized and the multiple sized products which have been sized multiple times. The work on the turntable does not have to be collected each time the turntable stops in the middle of rotation, and the work on the turntable is collected if the judgment is either "match" or "mismatch". Because it is good. Unsizing products and multi-sizing products are included on the turntable in the case where both tag codes are "match" or "mismatch."

(2) As one form of the above-mentioned sizing device,
A die set having the die and upper and lower punches inserted into the through hole of the die to press the work in the through hole;
The turntable may be provided not on the side of a press main body having a punch drive mechanism for driving the upper and lower punches but on the side of the die set.

According to the above configuration, the turntable can be handled as a die set integral with the die and the upper and lower punches.

<< Details of the Embodiment of the Present Invention >>
The details of the embodiments of the present invention will be described below with reference to the drawings.

[Sizing device]
The sizing device 1 according to the embodiment is a device for correcting (sizing) the dimensions of a sintered body (work W) conveyed by the turntable 2. The turntable 2 is provided with a plurality of storage holes 21h for storing the workpiece W, and while the storage holes 21h are moved from the workpiece supply position F to the workpiece removal position E by rotating around the rotation axis Cr, the respective storage holes The workpiece W in 21 h is conveyed to the through hole 31 h of the die 31 provided at the workpiece forming position S. The workpiece W conveyed into the through hole 31 h of the die 31 is pressed by upper and lower punches (not shown) inserted into the through hole 31 h of the die 31 to correct the dimensions. One of the features of the sizing device 1 is a plurality of identification information holding units 22 corresponding to the respective storage holes 21 h, a supply side input unit 4 for inputting a tag code to each identification information holding unit 22, and the input tag code And the information processing unit 6 for determining the quality of the work W. Hereinafter, after describing the workpiece W to be sized, details of each configuration of the sizing device will be described with reference to FIG. 1 as appropriate. FIG. 1 shows a top view of the turntable 2 as viewed from the direction of its rotation axis Cr. That is, the upper punch is disposed on the front side of the paper surface of FIG. 1, and the lower punch is disposed on the rear side of the paper surface of FIG.

[work]
The workpiece W is typically a metal sintered body obtained by forming a raw material powder mainly composed of a metal powder into a predetermined shape by a pressing device and sintering the obtained powder compact. Examples of the metal powder include iron-based powder and aluminum-based powder. The shape of the sintered body is a shape along the final shape, and examples thereof include various shapes such as a columnar shape and a cylindrical shape in which an axial hole is formed at the center.

[Turntable]
The turntable 2 is provided with a plurality of storage holes 21 h for storing the workpiece W, and rotates around the rotation axis Cr. Thereby, the workpiece W before sizing which is supplied from the outside and received in the storage hole 21h of the workpiece supply position F is transported from the workpiece supply position F to the die 31 of the workpiece forming position S, and the through holes 31h of the die 31 (cavity The workpiece W sized inside is transported from the workpiece forming position S to the workpiece removal position E. The work W in the storage hole 21 h transported to the work take-out position E is discharged to the outside of the turntable 2. The turntable 2 is a disk-shaped member, and a plurality of identification information holding units 22 corresponding to the respective storage holes 21 h are provided in the vicinity of the respective storage holes 21 h.

(Storage hole)
The storage hole 21 h is a hole for storing the work W. In each storage hole 21 h of this example, a work holding portion (not shown) described later for holding the work W is fitted. The shape of each storage hole 21 h is circular. The diameter of each storage hole 21 h is the same, and is larger than the diameter of the largest circle containing the work W. The number of storage holes 21 h can be selected as appropriate, and is eight here. The plurality of storage holes 21 h are arranged at equal intervals on the circumference coaxial with the rotation axis Cr of the turntable 2.

The storage holes 21h of the workpiece supply position F and the workpiece removal position E are adjacent to each other, and the storage hole 21h of the workpiece supply position F is a position forward of the storage hole 21h of the workpiece removal position E in the rotational direction of the turntable 2. To be mentioned. One of the work supply position F and the storage hole 21h at the work removal position E may be a position facing the die 31 with the rotation axis Cr of the turntable 2 interposed therebetween. Here, the storage hole 21h of the work supply position F Are positioned opposite to the die 31 with the rotation axis Cr of the turntable 2 interposed therebetween. That is, assuming that a basic rotation angle (here, 45 °) to be described later is one rotation unit, the work W in the storage hole 21h of the work supply position F rotates the turntable 2 four times from the work supply position F (total 180 Rotation) is transported to the die 31 and the turntable 2 is rotated three times from the position of the die 31 (from the workpiece supply position F seven times (total 315 rotations) of the turntable 2) transported to the workpiece take-out position E Ru. The storage hole 21h at the work take-out position E moves to the work supply position F when the turntable 2 rotates once from the work take-out position E (the work table 2 rotates eight times from the work supply position F (total 360 ° rotation)) Do.

The work holding portion is provided with an insertion hole corresponding to the outer shape of the work W, and includes an indenter (for example, a ball plunger etc.) that protrudes from the inner peripheral surface of the insertion hole toward the internal space of the insertion hole to hold the work W The thing is mentioned. A workpiece holding unit having a known configuration can be used (see Patent Document 1). When the work holding portion is attached to and detached from each storage hole, the single turntable 2 can be commonly used for works W of various shapes.

(Identification information holding unit)
The identification information holding unit 22 holds the tag code. The number of identification information holding units 22 is the same as the number of storage holes 21 h, and is eight here. Examples of the type of the identification information holding unit 22 include an IC tag which can write, overwrite, and read a tag code by non-contact (wireless communication). The type of tag code is not particularly limited as long as the identification information holding units 22 can be distinguished from each other, and examples include numbers and alphabets. If it is a number or alphabet, it is easy to determine the order in which each identification information holding unit 22 holds the tag code. The arrangement location of each identification information holding unit 22 is in the vicinity of each storage hole 21 h in the turntable 2. Here, the arrangement position of each identification information holding unit 22 is the outer peripheral edge of the turntable 2 between the storage holes 21 h. The identification information holding unit 22 corresponding to each storage hole 21 h is located at the rear in the rotational direction of each storage hole 21 h.

The rotation of the turntable 2 is performed by a table drive mechanism (not shown), and the rotation direction may be either clockwise or counterclockwise, and this example is counterclockwise as shown by the white arrow. The turntable 2 of this example is provided with the connection stand 25 connected to the table drive mechanism. The connection table 25 is provided coaxially with the rotation axis Cr of the turntable 2. The basic rotation angle of the turntable 2 can be appropriately selected according to the number and arrangement of the storage holes 21 h. The basic rotation angle is a central angle formed by the centers of the adjacent storage holes 21 h and the center of the turntable 2 and is represented by “360 ° / (number of storage holes 21 h)”. In this example, eight storage holes 21 h are arranged at equal intervals, so the basic rotation angle of the turntable 2 is 45 °. That is, the turntable 2 rotates 45 degrees in the counterclockwise direction. The turntable 2 pauses when it rotates 45 degrees.

As the table drive mechanism, rotary actuators of various configurations used for rotation of the index table can be used. The table drive mechanism of this example includes an index device (commercially available, not shown) including a roller gear cam mechanism. In addition, it may be an index device provided with a parallel cam mechanism. The roller gear cam mechanism of this example is configured such that the driven gear on the secondary side rotates 45 ° while the driving wheel on the primary side rotates 360 °. The rotation center of the driven vehicle is provided coaxially with the rotation axis Cr of the turntable 2. A power source for driving the index device (not shown, in this example, a motor for rotating the driving wheel, etc.) is provided in a press body described later.

Transfer of the work W from the outside of the turntable 2 to the storage hole 21 h of the work supply position F can be performed by gripping the work W with a manipulator such as a robot hand (not shown). In addition, you may carry out by adsorbing the work W with an electromagnet, a vacuum pad, etc. It is preferable to provide a supply conveyance path (not shown) such as a belt conveyor which travels near the outside of the work supply position F and conveys the work W. Then, the workpiece W can be continuously supplied.

The conveyance of the work W from the accommodation hole 21h of the work forming position S to the die 31 drops the work W toward the cavity formed by the die 31 and the lower punch (not shown) from the accommodation hole 21h at the work forming position S Do it by This falling may be performed by pressing with the upper punch. The workpiece W after sizing is taken out from the die 31 by being pushed up by the lower punch and stored again in the storage hole 21 h at the workpiece forming position S.

The workpiece W can be discharged from the storage hole 21h at the workpiece takeout position E to the outside of the turntable 2 by gripping the workpiece W with a manipulator such as a robot hand (not shown). In addition, the work W can be dropped from the storage hole 21 h downward or adsorbed from above the storage hole 21 h (not shown). In the case of dropping, a discharge conveyance path such as a belt conveyor which travels and conveys the work W may be provided below the storage hole 21 h of the work take-out position E. Furthermore, when a slide (not shown) or the like on which the workpiece W slides down from the storage hole 21h toward the belt conveyor is provided, the workpiece W can be smoothly discharged from the storage hole 21h. Moreover, in order to make it easy to make the workpiece | work W fall, the press apparatus (not shown) which presses the workpiece | work W from upper direction may be separately provided.

The turntable 2 may be provided on the die set 3 side including the die 31 and the upper and lower punches, or is provided on a press main body side (not shown) having a punch drive mechanism for driving the upper and lower punches. It is also good. If the turntable 2 is provided on the die set 3 side instead of the press main body side, the turntable 2 can be handled as a die set 3 integral with the die 31 and the upper and lower punches. Therefore, it is possible to attach the work holding portion to the turntable 2 attached to the die set 3 by external step-up, or adjust (replace) the indenter (ball plunger or the like) for holding the work W. As the punch driving mechanism, various mechanisms capable of reciprocating the upper and lower punches can be used. For example, a hydraulic ram cylinder can be used. The press body includes a power source (not shown) such as a motor that operates a pump that causes the hydraulic fluid of the hydraulic ram cylinder to flow.

The turntable 2 of this example is provided detachably to the die set 3. Thereby, it can be handled as a set (die set 3) integral with the die 31 and the upper and lower punches. Therefore, the turntable 2 can be attached (replaced) to the die set 3 by external setup. Specifically, the die set 3 includes a die 31 and upper and lower punches and a die plate 35 for holding the die, and the turntable 2 is mounted on the upper portion of the die plate 35. The die plate 35 supports approximately half of the lower surface of the turntable 2 and a semicircular portion having a periphery along the circular periphery of the turntable 2 and the other half, and has a rectangular shape larger than the turntable 2 Part of the In this rectangular portion, an arrangement area of the die 31 is provided. In the arrangement area of the die 31, punch insertion holes (not shown) vertically penetrating are provided so that the upper punch and the lower punch can be inserted into the through holes 31h of the die 31.

[Supply side input unit]
The supply side input unit 4 inputs the tag code into the identification information holding unit 22 corresponding to the storage hole 21 h of the work supply position F. The type of the supply side input unit 4 may be one corresponding to the type of the identification information holding unit 22. Here, as the supply side input unit 4, a noncontact (wireless communication) type IC tag reader / writer can be used. The arrangement position of the supply side input unit 4 is the outside of the turntable 2. The tag code input by the supply-side input unit 4 is, for example, a number sequentially arranged from “1”, a number (1 to 8) and an alphabet (A to H) equal to the number of identification information holding units 22 (here eight). Can be mentioned. The tag code input to the identification information holding unit 22 by the supply-side input unit 4 is used for the verification tag code stored in the storage unit 61 of the information processing unit 6 described later.

[Ejecting side reader]
The take-out side reading unit 5 reads the tag code input to the identification information holding unit 22 corresponding to the storage hole 21 h of the work take-out position E. Similar to the supply-side input unit 4, the type of the extraction-side reading unit 5 may be one corresponding to the type of the identification information holding unit 22. Here, the extraction side reading unit 5 can use an IC tag reader / writer. The placement position of the takeout side reading unit 5 is the outside of the turntable 2 as in the case of the supply side input unit 4. The tag code read from the identification information holding unit 22 by the takeout side reading unit 5 is used for determination by the quality determination unit 62 of the information processing unit 6 described later.

[Information processing unit]
The information processing unit 6 includes a storage unit 61 and a quality determination unit 62. The information processing unit 6 can use a computer including a processor that executes a determination procedure described later.

(Storage unit)
The storage unit 61 stores the verification tag code obtained by calculating the rotational position information of the storage hole 21 h from the workpiece supply position F to the workpiece removal position E. The rotational position information of the storage hole 21h is obtained by the number of storage holes 21h etc. For example, when the total rotation angle (315 °) of the basic rotation angle (45 °) or the basic rotation angle is one rotation unit The total number of rotations (7 times) can be mentioned. That is, the verification tag code is a tag code input to the identification information holding unit 22 at the supply side input unit 4, and assuming that the turntable 2 rotates properly (when it rotates 315 ° (seven times rotation)) ) Is a tag code to be read by the take-out side reading unit 5.

(Good or bad judgment unit)
The good or bad judgment unit 62 collates the tag code read by the takeout side reading unit 5 with the collation tag code, and judges the good or bad of the work W from the coincidence between the two tag codes. The judgment of “good” means that the rotation of the turntable 2 is appropriate. That is, it means that the work W is transported from the work supply position F to the work removal position E through an appropriate order. When the determination is "defective", it means that the rotation of the turntable 2 is inappropriate. That is, it means that the workpiece W is transported from the workpiece supply position F to the workpiece removal position E in an inappropriate order. Here, the good or bad judgment unit 62 judges “good” when both tag codes match, and judges “bad” when they disagree.

For example, the storage hole 21h of the work supply position F is sequentially rotated from 0 ° (work supply position F) to 315 ° (work take-out position E) by 45 ° without stopping in the middle of rotation without causing trouble in the turntable 2 In this case, the determination is "good" because both tag codes match. Even if the turntable 2 is stopped in the middle of rotation due to a defect, if the stopped turntable 2 is moved to the appropriate position by manual operation and the turntable 2 is restarted, the two tag codes will match, so the judgment is It becomes "good". If the turntable 2 is restarted by moving it to an inappropriate position by manual operation, both tag codes will not match and the determination will be "bad". The trouble that the turntable 2 stops in the middle of the rotation includes, for example, the foreign matter biting into the table drive mechanism.

By determining the quality, it is possible to reduce the collection work of the work W on the turntable 2 while suppressing the conveyance of the unsized product not sized and the multiple sized products to the downstream of the sizing device 1 downstream. . That is, when the determination is “good”, the work W on the turntable 2 may not be collected, and the work W on the turntable 2 may be collected when the determination is “defective”. . That is, it is not necessary to collect the entire work W on the turntable 2 every time the turntable 2 stops in the middle of rotation. Unsizing products and multiple-sizing products are included on the turntable 2 when the determination is “bad”. When the turntable 2 is stopped in the middle of rotation, if the turntable 2 is moved forward in the rotational direction beyond the proper position, an unsized product is produced, and the turntable 2 is returned backward in the rotational direction from the proper position In the case, a sizing product is produced multiple times. Details of the determination procedure will be described later.

Furthermore, the information processing section 6 determines that it is “defective” when the measured value of the pressing force by the punch drive mechanism driving the upper and lower punches is out of the set range of the punch drive mechanism (exceeding the set range or less than the set range) It is preferable to provide a shortage determination unit. If this excess / deficiency judgment unit is provided, it is suppressed that the oversized sizing products pressurized excessively by the upper and lower punches and the insufficient sizing pressure products with the upper and lower punches are conveyed downstream. The work of collecting the work W can be reduced. It is not necessary to collect the entire work W on the turntable 2 every time the turntable 2 stops in the middle of rotation as in the good or bad judgment unit 62, and it is judged that the work W on the turntable 2 is collected. It is because it is good at the time of "defect". The over-sized sizing goods and the low-sized sizing goods are produced, for example, due to excessive or undersized volume of the work W. The reason is as follows. When sizing is performed by the mechanical press, the lower limit position of the upper punch is fixed in terms of mechanism. When sizing is performed by the hydraulic press, the position control system of the punch is adopted, and again, the lower limit position of the upper punch is determined. That is, regardless of the pressing method of sizing, the lower limit position of the upper punch is usually determined. Therefore, if the volume of the work W is excessive, a sizing overpressure product is produced, and if the volume of the work W is too small, a sizing pressure deficiency product is manufactured.

It is preferable that the information processing unit 6 includes a rotation control unit (not shown) that instructs the table drive mechanism to stop the rotation of the turntable 2 based on the determination of the quality determination unit 62. Here, the rotation control unit issues a command to stop the rotation of the turntable 2 when the determination of the quality determination unit 62 is “poor”. Furthermore, it is preferable that the rotation control unit instructs the table drive mechanism to stop the rotation of the turntable 2 based on the determination (defect) of the excess or deficiency determination unit.

Judgment procedure
The determination procedure by the quality determination unit 62 will be described. The turntable 2 is positioned in advance so that the identification information holding unit 22 and the supply side input unit 4 (extraction side reading unit 5) face each other.

The verification tag code obtained by calculating the rotational position information of the storage hole 21h from the work supply position F to the work removal position E is stored based on the number of storage holes 21h of the turntable 2 and the arrangement form It makes part 61 memorize. Here, eight storage holes 21 h are arranged at equal intervals, and the basic rotation angle is 45 ° (the basic rotation angle is one rotation unit), so the work supply position F is moved to the work take-out position E The rotational position information of the storage hole 21 h is 315 ° (seven times). That is, as shown in Table 1, the storage unit 61 is for verification after each tag code (here, a numeral) input to the identification information holding unit 22 by the supply-side input unit 4 is rotated by 315 ° (seven rotations). Store as tag code. “-” In Table 1 means no matching tag code.

When the work W is transported to the storage hole 21 h of the work supply position F, the supply side input unit 4 inputs a tag code to the identification information holding unit 22 corresponding to the storage hole 21 h of the work supply position F. Here, as shown in Table 1, the supply-side input unit 4 inputs, as a tag code, consecutive numbers starting with “1” each time the turntable 2 rotates by the basic rotation angle (45 °). By setting the tag code to be input as a continuous number, it is easy to determine the transport time of the workpiece W, the sizing timing of the workpiece W, etc., as compared with the case where the numbers “1” to “8” are repeatedly used.

The take-out side reading unit 5 reads the tag code input to the identification information holding unit 22 corresponding to the storage hole 21 h of the work take-out position E. The read tag code is sent to the pass / fail judgment unit 62. The extraction side reading unit 5 reads the tag code input to the identification information holding unit 22 every time the turntable 2 rotates by the basic rotation angle (45 °).

The good or bad judgment unit 62 reads out the collation tag code from the storage unit 61, collates the collation tag code with the tag code read by the takeout side reading unit 5, and judges “good” if both tag codes match. If they do not match, it is determined as "defective". This determination is performed each time the extraction side reading unit 5 reads the tag code. Based on the rotational speed of the table drive mechanism (motor of the driving vehicle), the quality determination unit 62 reads out the verification tag code from the storage unit 61 at the start of rotation of the basic rotation angle of the turntable 2 (immediately after determination). If the turntable 2 is stopped during the rotation due to a malfunction of the table drive mechanism and the turntable 2 is rotated by a manual operation, the good or bad judgment unit 62 reads the next verification tag code from the storage unit 61. Instead, the current verification tag code is used to determine the consistency with the tag code read by the extraction side reading unit 5.

When the turntable 2 is rotating properly, both tag codes always coincide with each other, so that the judgment of the good or bad judgment unit 62 is always “good”. In addition, when the turntable 2 is stopped in the middle of rotation due to a problem, both tag codes match if the turntable 2 is rotated by an operation of the hand to move the position of the storage hole 21h to an appropriate position and then restarted. Therefore, the determination of the quality determination unit 62 is “good”. For example, when the supply side input unit 4 inputs “8” as a tag code, the tag code read by the takeout side reading unit 5 is “1” and the verification tag code is “1”. Matches.

If the turntable 2 is improperly rotated, for example, the turntable 2 is stopped in the middle of rotation due to a defect, and the turntable 2 is rotated by the operation of a hand to move the position of the storage hole 21h to an inappropriate position. In the case of restart, the determination is "bad" because both tag codes do not match. For example, when the turntable 2 is rotated to move the position of the storage hole 21h to the position of the storage hole 21h one rotation direction ahead of the appropriate position, when the verification tag code is "3", the removal side The tag code read by the reading unit 5 becomes “4”, and the two tag codes do not match. Then, since the workpiece W to be transported to the die 31 passes the workpiece forming position S without being transported to the die 31, an unsized product is produced on the turntable 2. When the turntable 2 is rotated and the storage hole 21h is moved to the position of the storage hole 21h one rotation direction behind the appropriate position, when the verification tag code is "3", The read tag code becomes "2", and both tag codes do not match. Then, since the sized work W is transported to the die 31 again, since the sizing product is manufactured on the turntable 2 a plurality of times, the turntable 2 is stopped. As described above, as a result of the determination “defect”, the turntable 2 is stopped and the work on the turntable 2 is collected.

[Others]
It is preferable to include a determination confirmation unit (not shown) that allows the operator to confirm the determination result. The determination confirmation unit may be, for example, at least one of a display device such as a monitor that can be visually confirmed, an illumination device such as a warning lamp that emits light, and an alarm device such as an alarm speaker that sounds an alarm to notify an operator. The determination confirmation unit may be, for example, provided in the press body.

[Use]
The sizing device 1 which concerns on embodiment can be suitably utilized for the sizing device which correct | amends the dimension of a sintered compact in the manufacture process of sintered components.

[Function effect]
According to the sizing device 1 according to the embodiment, it is possible to reduce the work of collecting the work W on the turntable 2 while suppressing the transport of the unsized product and the multiple sized products downstream of the sizing device 1.

The present invention is not limited to these exemplifications, is shown by the claims, and is intended to include all modifications within the scope and meaning equivalent to the claims.

For example, when the tag code read by the takeout side reading unit and the tag code for verification do not match, the determination may be "good", and when both tag codes match, the determination may be "bad". In this case, the verification tag code is a tag code (number) shifted by a fixed number with respect to the tag code (number) input at the supply side input unit, and it is assumed that the turntable rotates appropriately. The tag code (number) shifted by a fixed number with respect to the tag code to be read by a part may be mentioned. Specifically, the turntable is stopped in the middle of rotation due to a failure of the table drive mechanism, and the position of the storage hole is moved to the position of the storage hole one rotation direction ahead or rear than the appropriate position by manual operation. As described above, a tag code (number) in which both tag codes match when the turntable is rotated is used as a comparison tag code. In this case, it is possible to reduce the work of collecting the work on the turn table while suppressing the conveyance of the unsizing product or the plural sizing products downstream of the sizing device.

DESCRIPTION OF SYMBOLS 1 Sizing device 2 Turn table 21 h Storage hole 22 Identification information holding part 25 Connection stand part 3 Die set 31 Die 31 h Through hole 35 Die plate 4 Supply side input part 5 Extraction side reading part 6 Information processing part 61 Storage part 62 Good or bad judgment part W Work F Work supply position S Work molding position E Work take out position

Claims

A plurality of storage holes for storing workpieces are provided, and the workpieces in the respective storage holes are passed through the die through holes while rotating around the rotation axis and moving the storage holes from the workpiece supply position to the workpiece removal position. A sizing device provided with a turntable for transporting
A plurality of identification information holding units provided in the vicinity of the storage holes in the turntable and corresponding to the storage holes;
A supply side input unit for inputting a tag code to the identification information holding unit corresponding to the storage hole at the work supply position;
A removal side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work removal position;
A storage unit for storing a verification tag code obtained by calculating in advance rotational position information of the storage hole from the workpiece supply position to the workpiece removal position;
A sizing apparatus comprising: a pass / fail judgment unit which collates the tag code read by the takeout side reading unit with the comparison tag code and judges the quality of the work from the coincidence between the two tag codes.
A die set having the die and upper and lower punches inserted into the through hole of the die to press the work in the through hole;
The sizing apparatus according to claim 1, wherein the turn table is provided on the die set side, not on a press main body side having a punch drive mechanism for driving the upper and lower punches.