JPH0386436A - Tool magazine - Google Patents

Abstract

PURPOSE:To enable the quick and easy demounting of a tool pot proper via an operation from the exposed side in the space by mounting the tool pot onto a tool magazine body with a mounting means operated from the tool storage side. CONSTITUTION:Two bolts 27 are loosened from the tool storage side for being released from a screwed connection with a pot bottom plate 17, and pulled out from a pot body 15. Thereafter, the pot body 15 is demounted from the pot bottom plate 17. As a result, an elastic retaining member 21 comes to be exposed in such a condition as coupled to the pot body 15 or the pot bottom plate 17, and the pot body 15 can be easily demounted and changed. Also, though the pot body 15 is covered with a magazine cover, it is not always possible to prevent the ingress of a foreign material such as a chip completely. When there is a possibility of the ingress of a chip, therefore, the pot body 15 is demounted as aforementioned, and cleaned on a cleaning bed or the like. The aforesaid chip can be easily removed in that way.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a tool magazine that indexably supports a plurality of tool pots at tool take-out positions.

[Prior Art] Conventionally, so-called machining centers and the like that process a workpiece while exchanging a plurality of tools are equipped with a tool magazine for storing tools. This tool magazine (top) is usually equipped with multiple tool pots that removably store tools, supports these so that they can be rotated, and is designed to move the necessary tools to the removal position according to the workpiece machining process. .Each tool pot [L] is attached to the tool magazine body by appropriate means.

As such a conventional tool magazine (top), for example, there is Japanese Patent Application Laid-Open No. 63-52942.
The protrusion formed on the bottom of the tool pot C is fitted into the annular guide groove B provided on the tool pot C, and the radial groove G formed on the disc F attached to the rotating shaft E is fitted into the tool pot C. By rotating this disc F, the tool pot C is rotated and indexed. Ring fish eyes.

It is conceivable that the cut groove J of the tool pot C is sandwiched between the two. Alternatively, a method of providing a guide groove for fitting in a part of the guide groove B may be considered.

Also, for example, in Japanese Patent Application Laid-Open No. 63-123646 (upper
A type of tool magazine is described in which the tool pot is swung in the tool removal direction at a rotationally indexed position. As shown in Figure 5 (B), insert the bottle R into the bottle hole Q formed in a part of the tool pot P, and attach the tool pot P between the bot arms U-L1 of the magazine body S. It is assembled in a single piece and is integrally attached to the side of the machining head of a small machining center.

Ugly A tool pot attached to such a tool magazine usually has a structure in which a spring member V or the like is attached to the bottom of the tool storage hole to hold the pull stud of the tool.

[Problems to be Solved by the Invention] However, the tool magazine (upper part) is not permanently damaged, and especially in the tool pot (upper part), there may be damage to the spring member for holding the pull stud, etc., which may require repair.

Furthermore, cutting debris may enter the tool pot, and cleaning is expected to be necessary.

In such a case, IQ: With the conventional tool magazine mentioned above (for example, the one shown in Figure 5 (A)), it is necessary to disassemble the magazine body A and remove the disc F and ring claw 1. The one in Fig. 5 (b).The tool pot P cannot be removed without removing the bin R, and due to work space issues, we ended up having to remove and disassemble the entire magazine. Conventional methods (Yo) To remove just one tool pot, the internal mechanisms such as the tool indexing mechanism had to be disassembled, and in the end, the entire magazine had to be removed and disassembled, which was a tedious and time-consuming process.・There was a problem that it was not easy to clean, repair, or replace.
Reattaching the removed tool pot to the magazine body requires complicated work such as attaching the tool pot, assembling the tool magazine, and reinstalling the tool magazine to the machine tool. Until the replacement, etc. is completed (1) The tool magazine of the present invention requires completely stopping the machining operation of the workpiece, which is extremely inconvenient from the viewpoint of productivity. The purpose is to enable quick and easy cleaning, repair, and replacement of tool pots.

[Means for Solving the Problems] The tool magazine of the present invention (↓) is equipped with a plurality of tool pots that removably store tools, and drives the tool magazine body that supports the tool pots to generate desired information. A tool magazine that indexably supports a tool pot at a tool take-out position is characterized in that the tool pot is attached to the tool magazine body by attachment means that is operated from the tool storage surface side.

[Function] Tool magazine of the present invention (top) The tool pot is attached to the tool magazine body by operating the attachment means from the tool storage surface side in the attachment direction, and the attachment means is operated from the tool storage surface side in the removal direction. This allows the tool pot to be removed from the tool magazine body.As a result, the tool pot can be installed and removed by operating from the exposed surface side.A single tool pot can be removed quickly and easily as needed.

[Example] Next, an example embodying the present invention will be described in detail based on the drawings.

Figures 1 (a) to (c) show the front view of the tool magazine in the example.
A longitudinal sectional view and a rear view are shown.

The tool magazine 1 (top) is rotatably driven by a drive motor (not shown) via a hypoid gear 3 provided on the rear surface, and is provided with eight tool pots 5 radially.

The tool pot 5 is pivotably supported by a pot arm 9 attached to the magazine body 7.

The attachment of the tool pot 5 and pot arm 9 is based on the second relationship.
As shown in the figure. In addition, tool pot 5 is shown in Fig. 3 (a) to (d).
A cross-sectional view is shown.

A cylindrical pot body 15 having a tool pot 5 (upper through hole for storing the tool 11) 3, a band-like pot bottom plate 17 forming the bottom of the through hole 13, and a bottom portion of the through hole 13. It is equipped with an elastic gripping member 21 that grips the pull stud 19 of the tool 11, and a pot key 25 that fits into a keyway 23 provided in the tool 11. They are connected and assembled using short screws 29 with hexagonal holes.

The elastic gripping member 21 is an assembly type, and is formed by joining a gripping claw 31 formed by bending a plate spring and a base portion 37 consisting of a large diameter disk portion 33 and a small diameter short cylindrical portion 35 with a rivet 39. Ru.

A large diameter base 41 is provided at the bottom of the pot body 15, and two bolt holes 43, 43 are penetrated through this large diameter base 41 in the axial direction.
A fitting groove 45 having the same width as the pot bottom plate 7 is cut. Furthermore, a circular groove 47 that fits with the outer circumferential surface of the large-diameter disk portion 33 of the upper elastic gripping member 21 is provided at the bottom of the fitting groove 45 at a depth corresponding to the wall thickness of the large-diameter disk portion 33. It is being

The pot bottom plate 17 includes a band plate portion 49 having a width to fit into the fitting groove 45 provided in the pot body 15, and two opposing support plate members extending from both edges of the back surface of the band plate portion 49. 51.The length of the band plate portion 49 is the length of the pot body 1.
A fitting hole 53 is bored in the center of the strip plate portion 49 to fit with the small diameter short cylindrical portion 35 of the elastic gripping member 21. , band plate portion 49
At both longitudinal ends of the pot body 15
A threaded hole 55.55 is provided for threading the bolt 27.27 inserted through the large diameter base 41 of the. Further, each support plate member 51, 51 is formed with a protrusion 57, on which a gripping rod 59 that is gripped by a swinging mechanism (not shown) is pivotally supported when a tool is taken out.

Assembling the tool pot 5 (as shown in FIG. 2): Fit the two elastic gripping members 21 into both the circular groove 47 of the pot body 15 and the fitting hole 53 of the pot bottom plate 17, and then tighten the two bolts 27 into the pot. This is done by inserting the bolt 27 into the bolt hole 43 of the main body] 5 from the tool storage surface side, and then screwing this bolt 27 into the screw hole 55 of the pot bottom plate 17. Pot key 25ft,
, is fixed to a groove 61 provided on the side of the pot body 15 via a screw 29.

The tool pot 5 thus assembled is pivotally supported on the pot arm 9 by means of a pin 63 through which the support member 51 of the pot bottom plate 17 is inserted. The gripping rod 59 is also attached between the two support plate members 51, 51 by means of a pin 67 and E-shaped retainers 69, 69.

A small machining center 7 using this tool magazine 1
0 is shown in FIG.

Machining center 70 (upper tool used for machining 11 n
A machining head 71 that removably holds an ow is supported on a column 75 so as to be able to move close to or away from a work table 73, and on the side of the machining head 71, a tool magazine 1 having the above-mentioned configuration is mounted around the machining main axis. Orthogonal magazine axis M
It is assembled into one piece so that it can rotate freely. Tool magazine 1
It,, A magazine cover 77 is attached to prevent the intrusion of cutting debris, except for the tool storage side.
completely covered.

In the machining center 7o, a plurality of tools stored in the tool magazine 1 are automatically exchanged, and continuous machining of the workpiece is executed. During machining (to drive the spindle motor 81,
The current process tool 11now held in the processing head 71 is rotated to process the workpiece. When the tool exchange timing comes, the vertical motor 83 is driven to retract the machining head 71 upward, and the spindle motor 81 is further driven to execute spindle orientation. Next, the magazine motor 85
to rotate the tool magazine 1 and release the tool 11 for the next process.
Move the tool bot 5 next storing the next to the removal position NP, insert its gripping rod 59 between the gripping fingers of the swinging mechanism (not shown), drive the swinging motor 87 to operate the swinging mechanism, and remove the tool. Rock pot 5 next downwards. Furthermore, the replacement arm motor 89 is driven to operate the replacement arm 90, and the current process tool 11now and the next process tool 11next are simultaneously gripped, extracted, rotated, inserted, and
Execute the opening motion and change the tool. Continuous machining of the workpiece is performed by repeating these series of operations.

When this machining process is repeated a considerable number of times, for example, in any of the tool pots 5, the gripping claws 31 of the elastic gripping member 21
may be missing. In this case, loosen the two bolts 27 from the tool storage side to unthread the pot bottom plate 17 and remove it from the pot body 15.After this,
Remove the pot body 15 from the pot bottom plate 17. Then, the elastic gripping member 21 is easily removed and replaced while remaining fitted to either the pot body 15 or the pot bottom plate 17. Also, although it is covered by the magazine cover 77, the cutting waste is removed. It is not possible to completely prevent the intrusion of foreign substances such as the Cutting debris can be easily removed.

Moreover, when the pot body 15 is removed, an opening can be formed for inspecting and repairing internal devices such as a swing mechanism provided inside the machining center 70.

When cleaning, repair, and replacement are completed, the large-diameter disk portion 33 of the elastic gripping member 21 is fitted into the circular groove 47 of the pot body 15, and the strip portion 49 of the pot bottom plate 17 and the pot body 15 are fitted.
When the fitting groove 45 of
5 is fitted into the fitting hole 53 of the pot bottom plate 17 and assembled, and the bolt 27 is tightened and fixed. Pot body 15 (
The rotational positional relationship is determined by the first joint formed by the fitting groove 45 and the outer surface of the band plate part 49 of the pot bottom plate 17. Furthermore, the large diameter disc part 33 of the elastic gripping member 21
and the circular groove 47 of the pot body 15.
small-diameter short cylindrical portion 35 of the stamped wax and the elastic gripping member 21
and the fitting hole 53 of the pot bottom plate 17.
The center axis alignment is performed by the dowel part. Therefore,
Tool Pot 51, it will be restored to the exact same position as it was originally assembled. As a result, cleaning and cleaning of the tool pot 5
Even when repair, replacement, etc. are carried out by a general worker, the positional relationship between the keyway 23 of the tool 11 and the main shaft is always correctly aligned when replacing the tool. Therefore, when exchanging tools, a situation in which the next process tool 11 next cannot be properly held in the machining head 71 does not occur.Similarly, a situation in which the current process tool 11 now cannot be properly stored in the tool magazine 1 does not occur at all. do not.

As explained above, 1: According to this embodiment, when it becomes necessary to clean, repair, replace, etc. the tool pot 5,
The tool pot 5 can be removed by operating only two bolts 27 from the open area on the tool storage surface side (on the left side in FIG. 4), which is easy to work with.

Therefore, there is no need to remove or disassemble the tool magazine 1. As a result, cleaning, repair, replacement, etc. can be performed extremely quickly and easily.

Also, 1st. Second. The pot main body 51 elastic gripping member 21. The pot bottom plate 17 can always be assembled in an accurate positional relationship, and even an ordinary worker can easily remove and assemble the tool pot 5.

Further 1: Even if the side and back of the tool magazine 1 of the embodiment are covered with the magazine cover 77 etc., it is possible to repair the tool pot 5 quickly and easily as described above, It is suitable to be formed integrally with the machining pad 7 as a machining center 70, etc.In addition, in such a small machine tool (by removing the tool pot 5 as described above, an opening for internal inspection can be opened. Therefore, internal inspection of the machine is also easy.

In addition, the structure allows you to remove only the tool pot that requires repair, etc., so after removing the tool pot that needs repair,
Tool exchange and workpiece machining operations using other normal tool pots can be continued as they are, and productivity is greatly improved.

Furthermore, since the pot body 15 and the pot bottom plate 17 are separated and connected to the pot am 9 by the pot bottom plate 17, even though it has a complicated mechanism for swinging the tool pot 5 at the rotation index position, This makes it possible to remove the tool pot 5 from the tool storage surface side.

In addition, in the embodiment (9) the first spigot part was constituted by the fitting groove 45 of the pot body 15 and the band plate part 49 of the pot bottom plate 17, but the rotational positional relationship between the pot body 15 and the pot bottom part 17 is It is sufficient that the marks can be aligned in a predetermined manner, and the marking part may have any shape other than a circle.

In addition, it can be operated from the tool storage side (reluctantly). Any mounting means can be used, such as mounting with an I'L clamp, or a male thread is carved on the outer circumferential surface of the pot body, and a female thread is carved on the pot bottom plate. It is also possible to have a configuration in which a is carved and screwed into this.

Furthermore, for example, in a tool magazine without a swinging mechanism, the tool pot may be directly fastened to the pot arm with bolts, and the entire tool pot may be removed when removed.

In this case, the tool pot may not be separable into the main body, gripping member, and bottom plate.

Although the present invention has been described in detail above, the present invention is not limited thereto, and the present invention is not limited thereto. Various aspects can be adopted without departing from the gist of the invention, such as a configuration for determining .

Effects of the Invention According to the present invention: +1 Since the tool pot is attached to the tool magazine body by operating from the tool storage surface side, the tool pot itself can be quickly and easily attached by operating from the exposed surface side where there is a large space. Furthermore, there is no need to disassemble the tool magazine body, disassemble internal mechanisms such as the indexing mechanism, or remove the tool magazine from the machine tool. Therefore, cleaning, repair, and replacement of the tool pot itself becomes extremely easy, and work efficiency is significantly improved, which has a significant effect on improving productivity.

[Brief explanation of drawings]

Figure 1 (A) shows the front view of the tool magazine of the embodiment shown in Figure 1 (A).
B) is the ×-X longitudinal section of the tool pot. Fig. 1 (C) is the back of the tool magazine. Fig. 2 is a perspective view showing the assembled state of the tool pot. Figure (b) shows the longitudinal section of the pot body. Figure 3 (c) shows its Y-Y
The cross section is the same as in Figure 3 (d) <2-2 cross section is 4
The figure is a perspective view of a small machining center using the tool magazine of the embodiment. Figures 5 (a) and 5 (b) are a cross-section of a part of the conventional tool magazine and a part of it viewed from another direction. It is an explanatory diagram. ]...Tool magazine 5...Tool pot 7...Magazine body 9...Pot arm 11...Tool 1
3... Through hole 15... Pot body ] 7... Pot bottom plate 21...
- Elastic gripping member 25... Pot key 27... Bolt 33... Large diameter disc portion 35... Small diameter short cylindrical portion 4
3... Bolt hole 45... Fitting groove 47... Circular groove 53... Fitting hole 55... Screw hole

Claims (1)

[Claims] 1. A plurality of tool pots are provided for removably storing tools, and a tool magazine body that supports the tool pots is driven to support a desired tool pot in an indexable manner at a tool take-out position. A tool magazine, characterized in that the tool pot is attached to the tool magazine main body by attachment means operated from the tool storage surface side.