JP4345904B2 - Separable chain pot device - Google Patents

Description

[0001]
[Industrial fields]
The present invention relates to a separate chain pot device in an automatic tool changer for a machine tool. In particular, in a separable chain pot device that performs tool change by separating a tool holder (tool pot: registered trademark of Fudou Co., Ltd.) in an automatic tool changer of a machine tool, lateral positioning of the tool holder and tool holding The tool holder is not positioned with the substantially U-shaped link plate attached to the chain and the long groove formed in the tool holder to which the link plate is fitted. The present invention relates to a separable chain pot device having a concave-convex fitting structure so as to be separable by moving in a circular orbit direction.
[0002]
[Prior art]
In the separable chain pot device in the automatic tool changer of a machine tool, the lateral positioning of the tool holder and the longitudinal positioning of the tool holder are performed as shown in FIG. That is, a pair of substantially U-shaped link plates 22 are provided on the chain. On the other hand, the long groove 8 is formed in the tool holder 11 held by the pair of link plates 22. When the substantially U-shaped portion of the pair of link plates 22 holds the tool holder 11, the link plate 22 fits into the long groove 8 formed in the tool holder 11. As a result, the tool holder 11 is positioned in the lateral direction (left and right direction in the front view of FIG. 9A: the running direction of the chain) and the front and rear direction (front and rear direction in the front view of FIG. 9 is perpendicular to the paper surface). (Direction: a direction perpendicular to the running direction of the chain). The long grooves 8 are formed at two or four portions in contact with the link plate 22 on the side of the tool holder 11.
[0003]
In the conventional separable chain pot device having the positioning structure as described above, the tool holder 11 is separated from the chain by a straight line along the long groove 8 into which the link plate 22 drilled in the tool holder 11 is fitted. Only possible in the direction. That is, the tool holder 11 must be linearly moved until the long groove 8 is completely separated from the link plate 22.
Accordingly, in order to move the tool holder 11 to a place where a machining operation such as a cutting operation is performed by separating the tool holder 11 from the chain, first, the tool holder 11 is linearly moved along the long groove 8 from the chain. Two operations are required to move and take out, and then move the taken tool holder 11 to the work site by performing operations such as rotation. In order to return the tool holder 11 that has finished the work at the work site to the original chain, it is necessary to perform an operation opposite to the above.
As described above, since at least two different operations are required for taking out and storing the tool holder 11, a drive mechanism necessary for each operation is required. In addition, the operation also takes time.
[0004]
In an automatic tool changer for machine tools, there is a strong demand for shortening and speeding up tool change time due to demands for shortening work processes, speeding up the operation of machine tools, and reducing costs.
However, as described above, in the case of the conventional structure in which the operation for tool change has to be two steps, the tool change operation has to be slow, and the operation is slow at least when the direction of movement is different. The above-mentioned request cannot be satisfied.
[0005]
[Problems to be solved by the invention]
Therefore, the problem to be solved by the present invention is to provide a separable chain pot device capable of speedy tool change. In particular, the separation of the tool holder from the chain is possible not only in the linear direction but also in the circular orbit direction, and it is an object of the present invention to provide a separation type chain pot device capable of shortening the tool change time.
[0006]
[Means for Solving the Problems]
In the separation type chain pot device that performs the tool change by separating the tool holder from the chain in the automatic tool changer of the machine tool,
A substantially U-shaped member for holding the tool holder attached to the chain;
A recess configured in the tool holder;
When the substantially U-shaped portion of the substantially U-shaped member holds the tool holder, the concave portion is provided with a convex portion configured on the side of the substantially U-shaped member to be fitted ,
The tool holder has no long groove into which the substantially U-shaped member is fitted, and this is solved by a separable chain pot device.
[0007]
Moreover, in the separation-type chain pot device that performs tool change by separating the tool holder from the chain in the automatic tool changer of the machine tool,
A substantially U-shaped member for holding the tool holder attached to the chain;
A convex portion configured in the tool holder;
When the substantially U-shaped portion of the substantially U-shaped member holds the tool holder, the concave portion configured on the side of the substantially U-shaped member to which the convex portion is fitted ,
The tool holder has no long groove into which the substantially U-shaped member is fitted, and this is solved by a separable chain pot device.
[0008]
Moreover, in the above-described separation type chain pot device,
The substantially U-shaped member is a substantially U-shaped plate attached to both sides of the chain,
This is solved by a separable chain pot device characterized in that the tool holder is held by the substantially U-shaped portion of the pair of substantially U-shaped plates.
Moreover, in the above-described separation type chain pot device,
The substantially U-shaped member is a plate body having a substantially U-shaped cross section attached to the chain.
This is solved by a separable chain pot device characterized in that the tool holder is held by the substantially U-shaped portion of the plate body having a substantially U-shaped cross section.
[0009]
Moreover, in the above-described separation type chain pot device,
The convex portion is solved by a separable chain pot device characterized in that the tip side is configured to have a small diameter.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a separable chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool. And it has the substantially U-shaped member for hold | maintaining the said tool holder attached to the said chain. Furthermore, it has the convex part (or recessed part) comprised by the said substantially U-shaped member. And when the substantially U shape part of the said substantially U shape member hold | maintains the said tool holder, it has the recessed part (or convex part) comprised by the said tool holder to which the said convex part (or recessed part) fits. Thereby, the positioning of the tool holder in the lateral direction (chain running direction) is performed by the substantially U-shaped member holding the tool holder. The positioning of the tool holder in the front-rear direction (direction perpendicular to the chain direction) is performed by fitting the convex portion (or concave portion) and the concave portion (or convex portion). In addition, the recessed part (or convex part) of a tool holder is comprised by the lower surface (surface facing a chain) of a tool holder. Accordingly, the convex portion (or concave portion) of the substantially U-shaped member is formed on a surface facing the lower surface of the tool holder when the tool holder is held by the substantially U-shaped member. Such a surface can be configured by providing a vertical plate with respect to the plate surface of a substantially U-shaped member (substantially U-shaped plate), for example. And a convex part (or recessed part) can be comprised in this vertical plate. The convex portion is configured so that the tip side has a small diameter. For example, the cross section is trapezoidal. The substantially U-shaped member is a substantially U-shaped plate attached to both sides of the chain. The tool holder is held by the substantially U-shaped portion of the pair of substantially U-shaped plates. Alternatively, the substantially U-shaped member is a plate body having a substantially U-shaped cross section attached to the chain. And it is comprised so that a tool holder may be hold | maintained by the substantially U-shaped part of this board | substrate with a substantially U-shaped cross section. In the present invention, the long groove into which the conventional link plate (substantially U-shaped member) is fitted is not formed in the tool holder.
[0011]
FIG. 1 is a separation type chain pot device according to a first embodiment of the present invention (tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool). It is explanatory drawing (a front view, a top view, and a right view) of the principal part of the separation-type chain pot apparatus which performs.
[0012]
In the figure, reference numeral 1 denotes a tool holder in which a predetermined tool is loaded. And the long groove into which the below-mentioned substantially U-shaped member (what is called a link plate) 2 fits is not formed. Reference numeral 3 denotes a concave portion (hole: hole) formed in the lower surface portion (lower surface plate) of the tool holder 1. This concave portion (hole: hole) 3 is not present in the prior art, and is a feature of the present invention. Basically, except that a long groove is not formed in the side surface portion of the tool holder 1, except that a concave portion (hole: hole) 3 is formed in the lower surface portion (lower surface plate) of the tool holder 1. Since it is the same as the conventional tool holder, detailed description is abbreviate | omitted.
[0013]
Reference numeral 2 denotes a substantially U-shaped member, a so-called link plate. This link plate (substantially U-shaped member: substantially U-shaped plate) 2 is attached in pairs to both sides of the chain, as in the prior art. And then. The tool holder 1 is held by the substantially U-shaped portion of the pair of link plates 2 and 2.
[0014]
In the present embodiment, a flat plate is placed inside one of the link plates 2 (usually the front side) of the pair of link plates 2 and 2 (usually the front side) in a direction perpendicular to the surface of the link plate 2 and in a horizontal direction. A frustoconical protrusion 4 is provided so as to protrude from the upper surface of the flat plate. This flat plate can be formed by bending a part of the link plate 2 or by attaching another flat plate. This convex portion 4 is not present in the prior art and shows the characteristics of the present invention. When the tool holder 1 is held by the pair of link plates 2 and 2, the frustoconical convex portion 4 fits into the concave portion (hole: hole) 3 provided on the lower surface plate of the tool holder 1. It has become. Accordingly, the inner shape of the concave portion (hole: hole) 3 and the outer shape of the convex portion 4 are substantially the same. And it is provided in the corresponding position.
In FIG. 1, the pair of link plates 2, 2, which form a pair, are fixed to the chain width by a fixing bar 5.
[0015]
In the separable chain pot device configured as described above, when the tool holder 1 is held by the substantially U-shaped portion of the pair of link plates 2 and 2, the lateral direction of the tool holder 1 (FIG. 1). In the front view, the positioning in the left-right direction (chain running direction) is performed by the link plates 2 and 2 themselves. The positioning of the tool holder 1 in the front-rear direction (in the front view of FIG. 1, the direction perpendicular to the paper surface: the direction perpendicular to the running direction of the chain: the axial direction of the tool holder 1) 4 is performed by fitting. Therefore, the long groove as in the conventional example for holding (position regulation) of the tool holder 1 is unnecessary.
[0016]
Then, the positioning of the tool holder 1 in the front-rear direction is performed by fitting the concave portion 3 formed on the bottom surface portion of the tool holder 1 with the convex portion 4 provided on the link plate 2 side corresponding to the concave portion 3. Therefore, the work of removing the tool holder 1 from the link plates 2 and 2 becomes very simple. That is, the tool holder 1 can be separated from the chain not only in the linear direction but also in the circular orbit direction. Therefore, the operation space for separation can be reduced, the tool change operation is smooth and speedy, and the time required for tool change can be shortened, and thus the machining time can be shortened.
[0017]
FIG. 2 shows a main part of a separable chain pot device (a separable chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool) according to a second embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In this embodiment, instead of the concave portion (hole: hole) 3 in the first embodiment, a truncated cone-shaped convex portion 41 is provided by projecting downward from the bottom surface portion of the tool holder 1, and Instead of the convex portion 4 in the first embodiment, the only difference is that a concave portion (hole: hole) 31 into which the convex portion 41 is fitted is provided on the link plate 2 side, and detailed description thereof is omitted.
[0018]
FIG. 3 shows a main part of a separation-type chain pot device (separation-type chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool change device of a machine tool) according to a third embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In the present embodiment, the convex portion 4 in the first embodiment has a truncated cone shape, but has a quadrangular pyramid shape, and a concave portion (hole: hole) provided on the link plate 2 side. 3 also differs only in that it is formed in a shape in which the convex portion 4 having a quadrangular pyramid shape is fitted, and thus detailed description thereof is omitted.
[0019]
FIG. 4 shows a main part of a separation-type chain pot device (separation-type chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool change device of a machine tool) according to a fourth embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In the present embodiment, the convex portion 41 in the second embodiment has a truncated cone shape, but has a quadrangular pyramid shape, and a concave portion (hole: hole) provided on the link plate 2 side. 31 also differs only in that it is formed in a shape into which the convex portion 41 having a quadrangular pyramid shape is fitted, and detailed description thereof is omitted.
In addition, the shape of a recessed part or a convex part is not restricted to the said truncated cone shape or a square frustum shape.
[0020]
FIG. 5 shows a main part of a separable chain pot device (a separable chain pot device for separating a tool holder from a chain in a machine tool automatic tool exchanging device and exchanging tools) according to a fifth embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In the present embodiment, the pair of link plates 2 and 2 in the first embodiment are configured by two members. That is, L-shaped link plates 21 and 21 are attached to the chain, and the guide plate 6 is provided on the horizontal plane portion of the link plates 21 and 21. Therefore, the link plates 21 and 21 and the guide plate 6 constitute a so-called substantially U-shaped member (a plate body having a substantially U-shaped cross section by a combination of the link plates 21 and 21 and the guide plate 6). Become.
About other basic structures, since the separation type chain pot apparatus of this embodiment and the separation type chain pot apparatus of 1st Embodiment are the same, detailed description is abbreviate | omitted. In FIG. 5, 31 is a recess (hole: hole) provided in the bottom surface of the tool holder 11, and 41 is a horizontal surface of a substantially U-shaped member (a plate having a substantially U-shaped cross section) on the link plate side. It is the convex part provided on the surface part.
[0021]
FIG. 6 shows a main part of a separable chain pot device (a separable chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool) according to a sixth embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In 5th Embodiment, the convex part 41 of truncated cone shape is provided so that it may protrude on the horizontal surface part of the guide plate 6 which is a link plate side, and the recessed part (hole: hole) in which the convex part 41 fits. 31 is provided on the bottom surface portion of the tool holder 11, but in this embodiment, the truncated cone-shaped convex portion 41 is provided so as to protrude downward on the bottom surface portion of the tool holder 11. Since the concave portion (hole: hole) 31 into which the convex portion 41 provided on the tool holder 11 is fitted is only different in the horizontal plane portion of the guide plate 6, detailed description thereof is omitted.
[0022]
FIG. 7 shows the main part of a separation-type chain pot device (separation-type chain pot device for separating a tool holder from a chain in a machine tool automatic tool changer and changing tools) according to a seventh embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In the fifth embodiment, the convex portion 41 and the concave portion (hole: hole) 31 have a truncated cone shape, whereas in the present embodiment, a quadrangular pyramid is formed as in the third and fourth embodiments. Since only the trapezoidal shape is different, detailed description is omitted.
[0023]
FIG. 8 shows a main part of a separation-type chain pot device (separation-type chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool change device of a machine tool) according to an eighth embodiment of the present invention. It is explanatory drawing (a front view, a top view, and a right view).
In the sixth embodiment, the convex portion 41 and the concave portion (hole: hole) 31 have a truncated cone shape, whereas in the present embodiment, a quadrangular pyramid is formed as in the third and fourth embodiments. Since only the trapezoidal shape is different, detailed description is omitted.
[0024]
In the present invention, instead of the concavo-convex shape member attached to the link plate in the front-rear direction positioning member of the tool holder, a part of the plate-like body of the U-shaped bottom portion of the link plate has a certain angle, That is, a member that is bent inward of the link plate at an angle at which the tool holder can be separated from the link plate in the circular orbit direction, that is, an angle determined by the rotation orbit of the driving device that separates the tool holder, May be configured such that the bent member slides in and stops at a predetermined position. Such a structure may be a structure in which, for example, a taper is formed by the width of the bent member, and a notch-like groove having a length in which the member stops at a predetermined position.
[0025]
【The invention's effect】
In the separable chain pot device in the machine tool automatic tool changer, the tool holder can be separated from the chain in the circular orbit direction. Therefore, the separating operation of the tool holder is smooth and speedy, the tool change time can be shortened, and the machining time can be shortened.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a main part of a separable chain pot device according to a first embodiment. FIG. 2 is an explanatory diagram of a main part of a separable chain pot device according to a second embodiment. FIG. 4 is an explanatory view of the main part of the separable chain pot device that becomes the fourth embodiment. FIG. 5 is an explanatory diagram of the main part of the separable chain pot device that becomes the fourth embodiment. FIG. 6 is an explanatory diagram of the main part of the separable chain pot device according to the sixth embodiment. FIG. 7 is an explanatory diagram of the main part of the separable chain pot device according to the seventh embodiment. FIG. 9 is an explanatory view of the main part of a separation-type chain pot device according to an eighth embodiment. FIG. 9 is an explanatory view of the main part of a conventional separation-type chain pot device.
1 Tool holder 2,21 U-shaped member (link plate)
3,31 recess (hole: hole)
4,41 Convex

Claims (7)

In a separable chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool,
A substantially U-shaped member for holding the tool holder attached to the chain;
A recess configured in the tool holder;
When the substantially U-shaped portion of the substantially U-shaped member holds the tool holder, the concave portion is provided with a convex portion configured on the side of the substantially U-shaped member to be fitted,
The tool holder is not formed with a long groove into which the substantially U-shaped member is fitted. In a separable chain pot device that performs tool change by separating a tool holder from a chain in an automatic tool changer of a machine tool,
A substantially U-shaped member for holding the tool holder attached to the chain;
A convex portion configured in the tool holder;
When the substantially U-shaped portion of the substantially U-shaped member holds the tool holder, the concave portion configured on the side of the substantially U-shaped member to which the convex portion is fitted,
The tool holder is not formed with a long groove into which the substantially U-shaped member is fitted. The substantially U-shaped member is a substantially U-shaped plate attached to both sides of the chain,
The separable chain pot device according to claim 1 or 2, wherein the tool holder is held by a substantially U-shaped portion of the pair of substantially U-shaped plates. The substantially U-shaped member is a plate body having a substantially U-shaped cross section attached to the chain.
3. The separable chain pot device according to claim 1, wherein the tool holder is held by a substantially U-shaped portion of the plate body having a substantially U-shaped cross section. The separable chain pot device according to any one of claims 1 to 4, wherein the convex portion is configured such that the tip side has a small diameter. The separable chain pot device according to any one of claims 1 to 5, wherein the concave portion or the convex portion of the tool holder is formed on a lower surface portion of the tool holder. 5. The separable chain pot device according to claim 4 , wherein the convex length of the convex portion is a dimension equal to or smaller than the thickness of the plate body in which the concave portion into which the convex portion is fitted is formed.

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