JPS608895B2 - Tool management method for heading molding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tool management method for a heading forming machine.

By the way, a heading molding machine for manufacturing bolts, nuts, or various parts uses a variety of tools such as molds such as punches and dies, knockout pins, and holders and spacers for these. is used.

However, each of these tools is required for each heading stage, so the more the number of heading stages a forming machine has, the more tools will be used in accordance with the number of stages. However, the tools described above must be replaced with dedicated tools each time the size or shape of the forged product to be manufactured differs.

Therefore, when changing the setup when switching to manufacturing a different forged product, it takes a considerable amount of time just to assemble a large number of these tools, and there are many cases where they are mixed up. It takes a lot of effort to organize and store tools that are not used. On the other hand, among such tools, the usage conditions for molds such as punches and dies are severe, so it is important to manage their lifespans, and if they have been used to the end of their set lifespan, they must be replaced immediately. , leading to the production of defective products.

However, the set life of each mold differs, and for example, even just the die has longer or shorter lifespans depending on which heading stage it is used in. Therefore, in managing the lifespan of tools such as the above-mentioned molds, it is necessary to accumulate and display the past elapsed lifespan of each tool, which also requires a great deal of effort. There are a few known examples of such tool life management.

First of all, Japanese Patent Application Laid-open No. 49-23383 discloses that each machine tool in a group management system or a machine tool with a machining center is subject to individual life management for each tool used in those machine tools. A management method for this is shown.

However, this known example requires that each tool whose life is managed is always attached to a machine tool, regardless of whether it is used all the time or selectively, and as long as this condition is met, In this case, it merely makes it possible to manage the life of each tool in the machine tool. Also, JP-A-49-3
Publication No. 7277 targets machine tools equipped with a tool storage magazine, so-called machining center-equipped machine tools, and describes an automatic system for automatically replacing tools that are relatively easy to wear out with spare tools at the end of their service life. A tool changer is shown.

However, this known example requires that the tool and its spare tools are always installed in the tool storage magazine in advance, regardless of whether the tool whose life is to be managed is constantly used or selectively used. As long as this condition is met, automatic exchange will only be possible. Furthermore, Japanese Patent Application Laid-Open No. 49-129984 discloses a method for machine tools in which a set of tools is repeatedly used.
An automatic stop device is shown to automatically stop the machine tool at the end of its service life.

However, in this known example, the condition is that the same tool whose lifespan is being managed continues to be installed in the machine tool, and as long as this condition is met, automatic stopping of the tool is only possible. Therefore, these known examples are useful for machine tools that mainly perform cutting or grinding, but they require a large number of specialized tools for different products, and when switching to different types of products, it is necessary to use a complete set of tools. It is difficult to apply it to a heading molding machine where a set of tools must be completely replaced with another set, and even if it could be applied, it would be easier to arrange, organize, and store the necessary tools for multiple sets of tools. Although this is expected to be effective, it is not possible to expect the effect of making it possible to continuously manage the lifespan of each tool, which may be replaced in the middle, before and after the replacement. Therefore, in order to deal with such conventional problems, the present invention makes it possible to easily arrange and organize and store the necessary tools for each set of tools necessary for manufacturing each type of forged product desired. The purpose of this paper is to provide a tool management method.

Furthermore, the present invention aims to provide a tool management method that can easily display the set life and cumulative elapsed life of each tool that requires life management for each set of tools described above. be. The method of the present invention provided for this purpose can be applied to each type of desired forged product.
A complete set of tools necessary for manufacturing this is prepared in advance and stored in a special tool tray, and multiple of these tool trays are placed on the turntable on the heading molding machine, and the required tool tray is moved to the optimal position for use. This feature is characterized in that it can be migrated. Furthermore, in the present invention, a cartridge-shaped tool life display block having two or more individual display functions is housed in each of the above-mentioned tool trays together with the above-mentioned set of tools, and when the tool tray is moved to the optimum position for use, The present invention is characterized in that when the tools are taken out and installed at a predetermined location on the heading forming machine, the tool life display block is also taken out at the same time and loaded into the elapsed life recording unit on the forming machine control desk. . DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings. First, in FIG. 1, 1 is a heading forming machine having two or more heading stages (five stages in the illustrated example), and 2 is a control console for this.

The tie base 3 and punch base 4 of the forging forming machine 1 are each equipped with a plurality of dies 5 (or punches 6) facing each other (five in the illustrated example).
7 is a turnable installed above the forging machine 1, and there are a plurality of turnables (four in the example) on the table.
The tool trays 8, 82, . . . , are placed side by side in the turning direction.

Each of these tool trays 8, 82, . . . is dedicated to a desired type of heading product. On the other hand, tools necessary for manufacturing a forged product, that is, tools such as the above-mentioned turney 5 and punch 6, as well as knockout pins (not shown), their holders, and spacers, differ depending on the type of product. Each set of tools required for each product type A,,A2,...
... are individually arranged in advance, and each of the above trays 8,
, 82, . In addition, each of these trays 81
,82,...... each set of tools A,,,...
Tool life display flock B dedicated to each of...
, B2, . However, the above tool life display block B, &,...
As shown in FIG. 2, a cartridge type device is adopted that can be easily attached to and removed from the recording unit C, and each of the tools has a set life and an accumulated elapsed life for two or more tools. It is assumed that each tool has a function that can be displayed individually.

That is, the display block B in the illustrated example has a maximum of 10 individual display functions, and therefore, a total of 10 vertical slots 9 are arranged in parallel on its front surface, and a total of 10 vertical slots 9 are arranged in parallel on the front side. The scale 10 for indicating the tool life expressed in the number of heading operations is
A total of five rows are written so that two of the slits 9 are used for the same purpose. Each of these slits 9 is provided with a set lifespan indicator piece 11 and an accumulated elapsed lifespan indicator piece 12 located below it so as to be movable individually along the length direction of the slit. Each of the set life indicator pieces 11 provided in each of the slits 9 is provided with a releasable fixing means, such as a set screw, for individually fixing them to any desired position. Similarly, a total of 10 accumulated elapsed life indicator pieces 12 are each provided with a mechanism for moving them individually, such as a feed screw that is linked to the forging operation of the forging machine 1, built into the flock. It is assumed that In addition, other display blocks &, B3, ...... are also the above display blocks B.
is configured in exactly the same way. On the other hand, the recording unit C records each display block B,,B2,...
It has a block insertion hole 13 on the top surface into which one of the above-mentioned cumulative elapsed life indicator pieces 12 is inserted, and a drive mechanism for individually operating each moving mechanism of the cumulative elapsed life indicator piece 12, for example, a forging mechanism. It is assumed that the same number of sets of drive shafts as the number of indicator pieces 12 are housed, which move during the heading operation of the molding machine to rotate the feed screws and the like described above.

Each of these drive mechanisms is configured to operate each of the above-mentioned moving mechanisms in order to move the cumulative elapsed life indicator piece 12 according to the number of forging operations of the forging machine 1 based on a preset ratio. Furthermore, the setting ratio is
Therefore, in order to make it possible to select the unit of the scale 10 for each indicator piece 12, in the illustrated example, the front upper surface of the unit is formed as a pin board 14 consisting of 10 rows of pinholes on the left and right, and 3 rows of pinholes on the front and back. A total of 10 select pins 15 for each row
is prepared, and the scale unit can be selected from three types: 10,000 times, 100,000 times, and 100 times, depending on which of the three pinholes (front and rear) the pin is inserted into. In addition, 16 in FIG. 1 is a tool stocker that is attached to the side of the heading forming machine 1 as necessary, and for example, two of the tool trays 8, 82, . . . . The above items can be stored three-dimensionally.

In the above configuration, assuming that the tools necessary for manufacturing the desired heading product are stored in the tool tray 8, the turntable 7 is turned and the tray is used as shown in FIG. After moving to the optimum position, the set of tools A housed therein is taken out and installed at a predetermined location of the heading forming machine 1, and at the same time, the tool life display block B is also taken out and loaded into the elapsed life recording unit C.

The tool tray 8 is therefore empty as shown. In addition, when switching from this state to manufacturing a different heading product, first set of tools A installed in the heading forming machine 1,
The tool life display block B is also removed from the elapsed life record unit C and placed in the tray, and then the turntable 7 is removed. Turn it to move the tool tray containing the tools needed to manufacture the next product to the optimal position for use. However, on the turntable 7, there are a plurality of (four in the example) tool trays 8,...
82, . . . can be placed on each tray, so a set of tools A,, A2, . . . with different contents can be placed on each of these trays.
If these tools are stored, a plurality of types (four types in the illustrated example) of forged products corresponding to the number of trays can be manufactured using only those tools.

In addition, when attempting to manufacture a pressed product that cannot be manufactured using the tools stored in any of the tool trays on the turntable, other tools containing the set of tools necessary for manufacturing this product may be manufactured. All you have to do is prepare a separate tool tray and replace it with one of the tool trays on the turntable. At this time, the tool tray removed from the table can be placed in the tool stocker with the set of tools still stored in it. It is stored in 16. On the other hand, each of the slits 9 provided on the front side of the tool life display block corresponds to each tool that requires life management among the set of tools combined in the block, for example, a plurality of tools prepared for each heading stage. When these tools are new, the set life indicator piece 11 of the corresponding slit 9 is used to indicate the set life of the tool. Then, move the accumulated elapsed life indicator piece 12 to the zero position and fix it. For example, insert the display block B into the insertion hole 13 of the recording unit C as shown in FIG. “Start the heading molding machine 1.

Then, the cumulative elapsed life indicator piece 12 of each slit 9 moves according to the set ratio selected by the select pin 15 in accordance with the elapsed life of the corresponding tool, that is, the number of forging operations of the forging machine. The elapsed life of the tool is indicated by a scale 10 according to the unit. As long as the elapsed life indicated by this indicator piece 12 from the silkworm position has not reached the set life, the movement distance of the indicator block 12 from the silkworm position is recorded as the production of the forged product to which this indicator block B corresponds is completed. Even if it is removed from unit c, it will remain as it is,
When this display block B is used again in manufacturing the same type of product next time, the current movement amount of the indicator piece 12 is added to the previous movement amount. In other words, the elapsed life of the tool each time it is used is cumulatively recorded from the beginning and displayed by the indicator piece 12. Therefore, to give an example in FIG. 2, both indicator pieces 11 and 12 in the slit 9 at the left end of the display block B indicate that the set life of the tool corresponding to the slit is 9 million operations, and the cumulative elapsed life is 9 million times. 6 million times.
As described above, the present invention provides a set of tools necessary for the production of each type of forged product in advance and stores them in a dedicated tool tray in an orderly manner, and a plurality of such tool trays are connected to a turntable on a forging machine. According to the present invention, it is possible to move the required set of tools to the optimum position by rotating the table. This eliminates the troublesome effort required to prepare a complete set of tools each time they are used, eliminates the possibility of mix-ups, and simplifies the effort and time required for changeovers when switching to manufacturing different types of products. It is possible to expect effects such as being able to achieve a considerable reduction in time and making it easier to organize and store tools that are not in use.

Furthermore, the present invention provides a cartridge-shaped tool life display block that is equipped with a function of individually displaying the set life and cumulative elapsed life of two or more tools for each set of tools. This is because when a set of tools is taken out and used, the above-mentioned display block that comes with it is loaded into an elapsed life recording unit prepared on the forging machine side. According to the present invention, for tools that require life management, the past elapsed life of each tool, which has a different set life, can be continued without being hindered even if it is replaced in the middle. It can be recognized at a glance, making it easy and accurate to calculate the remaining life and determining when to replace the tool, and eliminates the trouble necessary to cumulatively display the elapsed life. You can expect benefits such as:

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a partially enlarged perspective view of the same as seen from the front. A. ~Hmm...Tools set, B, ~B4...Tool life display block, C...Elapsed life record unit,
1...Forging machine, 2...Control console, 7...
・・Turntable, 8・～84・・・Tool tray, 11・. ．．・．． ．． Set life indication piece, 12... Cumulative elapsed life indication piece. Traditional box coin Z' box

Claims (1)

[Claims] 1. For each type of forged product, a set of specialized tools necessary for manufacturing them is prepared in advance and stored in a designated place in a dedicated tool tray, and 2.
A tool life display block that can individually display the set life and cumulative elapsed life of more than one tool is prepared for each set of tools mentioned above, stored in a predetermined place in each tool tray, and then pressed A turntable is installed on the machine, and a plurality of the tool trays mentioned above are placed on it so as to line up in the turning direction, and the control console of the molding machine displays the elapsed lifespan shared by each of the tool life display blocks mentioned above. A recording unit is prepared, and when a set of necessary tools is taken out from a special tool tray and installed in a designated place on the heading machine, a tool life display block is also taken out from the tray and the elapsed life of the control console is recorded. A tool management method for a heading forming machine characterized by loading tools into a recording unit.