WO2020157968A1

WO2020157968A1 - Rail-type workbench

Info

Publication number: WO2020157968A1
Application number: PCT/JP2019/003677
Authority: WO
Inventors: 柳崎淳; 竹島弓
Original assignee: 株式会社Ｆｕｊｉ
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-08-06
Also published as: JP7213273B2; JPWO2020157968A1

Abstract

In order to provide a rail-type workbench with easy handling, this workbench is provided with a rail which is connected to a body-side rail on the machine tool side, and a leg part which places the rail at a prescribed height. The rail and the leg part can be assembled and disassembled. The leg part is provided with an assembly structure that integrates multiple component members, for example, the rail and the leg part are such that the rail and the component members can be assembled with a prescribed number of bolts. The assembly structure connects the component members of the disassembled leg part with the aforementioned prescribed number of bolts.

Description

Rail-type workbench

The present invention relates to a rail-type workbench for a rail-movable structure incorporated inside the machine body.

A machining center equipped with an automatic tool changer is equipped with a tool magazine that stores multiple tools with a tool holder. In such a machining center, the entire tool magazine has a structure that can be pulled out from the machine body, and according to Patent Document 1 below, the pulling out is performed as follows. The machine body is provided with a pair of guide rails, and a temporary mount table is used to connect the extension rails to the guide rails when the tool magazine is pulled out. A hand lift is used to allow the tool magazine to move between the temporary table and the machine body. The handlift has a structure in which two forks are lifted and lowered by a jack device, and although it is a heavy load, it can be moved by providing wheels.

　The temporary stand is placed on the hand lift with the extension rails horizontal, and is carried by the worker to the machining center. Then, by adjusting the height of the hand lift, the extension rail of the temporary stand is aligned with the guide rail of the machining center. Further, in the machining center, the tool magazine is disconnected from the machine body. After that, the temporary table is fixed to the machine body, and the operator pulls out the tool magazine along the rails. The tool magazine transferred to the temporary table is used for tool replacement and maintenance at the pull-out position.

International publication WO2016/027327

　As previously mentioned, maintenance work for tool magazines required the use of a hand lift to pull out from the machine as described above, which was a major task. This is because the handlift itself is large and heavy, which makes it a burden for a worker who performs maintenance. That is, the handlift is not always installed in the factory where the machining center is installed, but must be carried as needed. At that time, since a handlift having a weight of about 100 kg is carried, it was difficult for one worker to perform loading/unloading work on/from an automobile. In addition, a transportation vehicle for a handlift has to be prepared, which is inconvenient when an emergency response is required.

Therefore, an object of the present invention is to provide a rail-type workbench that is easy to handle in order to solve such a problem.

A rail-type workbench according to an aspect of the present invention includes a rail that is connected to a machine-side rail on a machine tool side, and a leg portion that arranges the rail at a predetermined height, and the rail and the leg portion are It can be disassembled and assembled, and the leg has an assembly structure that integrates a plurality of constituent members.

According to the above configuration, the rail and the leg can be disassembled and assembled, and the leg can be assembled with a plurality of components integrally, so that the leg can be compactly assembled when not in use as compared with the form in use. , Easy to store and transport.

It is a perspective view showing one embodiment of a rail type worktable. It is a perspective view showing the use situation of a rail type work table. It is a perspective view showing an attachment structure of a rail type worktable. It is the perspective view which showed the leg part of a non-use form. It is a perspective view showing a leg part at the time of disassembly. It is the perspective view which showed the connection part which connects a rail member to a leg part.

An embodiment of a rail type workbench according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a rail type workbench of the present embodiment. FIG. 2 is a perspective view showing how the rail type workbench is used. The rail-type workbench 1 is for carrying out maintenance work by pulling out the tool magazine 71 inside the machining center 2 from the machine body, as in the conventional example. For example, the machining center 2 constitutes a processing line installed side by side with other machine tools, etc., and the work line is provided with a work automatic transfer machine 3 for transferring a work to each machine tool. ing.

The automatic work transfer machine 3 is one in which the transfer robot 4 moves on the front surface of the processing line, and the front cover 5 and the like form a transfer space in front of the machine tool such as the machining center 2. Therefore, when performing maintenance work in front of the machining center 2, the distance to the tool magazine in the machine is long. In the conventional maintenance method using the hand lift, it is necessary to remove the front cover 5 to secure a space into which the hand lift can enter. The rail-type workbench 1 of the present embodiment makes it easy to work on the machining center 2 of such a processing line.

The rail-type workbench 1 is composed of two rail members 11 provided with rails 21 and a leg portion 12 including four legs. The rail 21 is adapted to the structure of the machining center 2 side. Here, FIG. 3 is a perspective view showing a mounting structure of the rail-type workbench 1. In the machining center 2, a linear guide is used to move the tool magazine 71, and the rail 21 is the same as the rail 72 constituting the linear guide, and the slide block 73 of the tool magazine 71 can be moved. Has become. The rail 21 is fixed on the base frame 22 to be integrated, and the two rails 21 are fixed on the leg 12 via the base frame 22 so as to be parallel and horizontal.

The base frame 22 is a single rectangular frame, and the rail 21 has a total length longer than that of the base frame 22 and a tip portion thereof projects by a predetermined amount. The tip portion thereof serves as a connecting portion 211 with the machining center 2. The rail 21 has a plurality of stepped through holes 213 formed at a constant pitch in the longitudinal direction, and bolts 23 inserted therein are fastened and fixed in the screw holes of the base frame 22. The connecting portion 211 has a length corresponding to one through hole 213, is placed on the main body 201 of the machining center 2, and is fixed by tightening the bolts 23. As a result, the rail 21 of the rail-type workbench 1 is linearly connected to the rail 72 on the machining center 2 side, and functions as one rail.

A stopper 25 that stops the tool magazine 71 pulled out from the machining center 2 is provided on the rail member 11 on the side opposite to the connecting portion 211. The tool magazine 71 is pulled out to the position of the stopper 25 and maintenance work or the like is performed. Therefore, the rail-type workbench 1 is provided with legs 12 for supporting the tool magazine 71 at the ends of the rail member 11. The leg portion 12 has a skeleton structure having rods and plates as constituent parts, and can be disassembled and assembled. In particular, it is possible to assemble the usage mode and the non-use mode differently, and FIG. 4 is a perspective view showing the leg portion 12 in the non-use mode with respect to the usage mode of FIG. Further, FIG. 5 is a perspective view showing the leg portion 12 when disassembled.

Here, in the rail type workbench 1 in the usage pattern shown in FIG. 1, the longitudinal direction of the rail 21 is the front-back direction of the rail type workbench 1, and the connecting portion 211 side is the front side. Further, the rail-type workbench 1 is configured such that the leg portion 12 supports the two rail members 11 by the four front, rear, left, and right frames on the rear side away from the connecting portion 211. An adjuster 31, which is a screw-type height adjuster, is provided at the lower end of each frame, and the height and level of the rail 21 can be adjusted.

The leg 12 can be disassembled into each component as shown in FIG. 5, and can be changed into two forms shown in FIGS. 1 and 4 by connecting each other with a bolt. The component parts that configure the leg portion 12 are two upper limb members 33 and two lower limb members 34, and a connecting member that connects the upper limb member 33 and the lower limb member 34, respectively. First, the upper limb member 33 is integrally formed by welding a horizontal bracket 42 to two vertical frames 41. FIG. 6 is a perspective view showing a connecting portion that connects the rail member 11 to the leg portion 12.

The vertical frame 41 is a hollow rectangular frame, and the bracket 42 is a C-shaped channel. As shown in FIG. 6, the bracket 42 is welded to the two vertical frames 41 on the open side, and the support plate 43 welded to the vertical frames 41 supports the bracket 42 so that the bracket 42 is hooked from the inside. The pair of upper limb members 33 are assembled such that the open sides of the brackets 42 face each other in the front-rear direction. The bracket 42 is provided with rail mounting portions 421 protruding from the two vertical frames 41 in the width direction, and guide plates 45 are welded to both ends. The rail member 11 is mounted on the bracket 42 by being inserted between the vertical frame 41 and the guide plate 45.

A notch 423 is formed in the rail mounting portion 421 of the bracket 42, and a tapped fastening plate 26 is welded to the lower surface of the base frame 22 constituting the rail member 11. The fastening plates 26 located at two front and rear positions of the rail member 11 are respectively aligned with the notches 423 of the two brackets 42 of the leg portion 12. Then, the bolt 27, which passes through the notch 423 from below, is inserted into the screw hole of the fastening plate 26, and the base frame 22 is fastened and fixed to the bracket 42.

Next, in the lower limb member 34, the horizontal frame 52 is welded to the ends of the two vertical frames 51, and the two horizontal plates 53 are welded between them to be integrated. The vertical frame 51 and the horizontal frame 52 are hollow rectangular frames, and are welded in a state where the ends of the horizontal frame 52 are abutted against the side surfaces of the vertical frame 51. In each leg 12, two sets of upper limb member 33 and lower limb member 34 are integrally assembled by bolting using four vertical connecting plates 35 and two horizontal connecting plates 36.

The vertical connection plate 35 connects the

vertical frames

41 and 51 vertically, and is a rectangular plate material having a width corresponding to the frame width. The horizontal connecting plate 36 connects the

frames

41 and 51 vertically, and also connects the two sets of

vertical frames

41 and 51 connected by the vertical connecting plate 35 in the front-rear direction. The horizontal connecting plate 36 is a rectangular plate member having a length that determines the dimension of the leg portion 12 in the front-rear direction and has a width corresponding to the length of the vertical connecting plate 35. The vertical connecting plate 35 and the horizontal connecting plate 36 have through holes through which bolts pass. On the other hand, the

vertical frames

41 and 51 are welded with a plurality of tapped fastening plates 37 corresponding to the positions where the vertical connecting plate 35 and the horizontal connecting plate 36 are attached, and two screw holes are formed in each of them. ..

The leg portion 12 can be disassembled as shown in FIG. 5, and in order to use the leg portion 12 as shown in FIG. 1, first, the end faces of the

vertical frames

41 and 51 of the pair of upper limb member 33 and lower limb member 34 are joined together. Is struck. The vertical connecting plate 35 is superposed on the fastening plates 37 of both the

vertical frames

41 and 51 so as to straddle the abutting surface, and the bolts 55 passing through the through holes are put into the screw holes of the fastening plate 37 to perform tightening and fixing. Be seen. Two sets of the upper limb member 33 and the lower limb member 34 which are integrated are formed, and these are assembled into one by the lateral connection plate 36. That is, the horizontal connecting plate 36 is superposed on each fastening plate 37, and the bolts 55 that have passed through the through holes are put into the screw holes of the fastening plate 37 for fastening and fixing. After the legs 12 are assembled, as described above, the base frame 22 is fastened to the bracket 42, the two rail members 11 are assembled, and the rail-type workbench 1 is completed.

In the rail-type workbench 1 of the usage pattern shown in FIG. 1, the length of the rail member 11 in the front-rear direction is 1170 mm, the height is 1155 mm, the lateral width of the two rail members 11 is 290 mm, and the width of the legs 12 is 210 mm. .. And the total weight is 22 kg. In order to carry this, the rail member 11 and the leg 12 are separated to facilitate the carrying, but a certain amount of space inside the vehicle is required to carry the leg 12 as it is. Therefore, it may be disassembled into a state before assembly, but a container or the like for collecting the components is required, which makes the handling inconvenient. Therefore, the rail-type workbench 1 of the present embodiment is constructed so as to be assembled into a non-use form in which the disassembled components of the leg portion 12 are put together.

In the non-use-type assembly, the disassembled leg 12 components are arranged as shown in FIG. That is, it is a position where the pair of lower limb members 34 are inside and the pair of upper limb members 33 are sandwiched from outside. Therefore, first, the pair of lower leg members 34 facing each other are connected by the two horizontal connecting plates 36 in which the respective vertical frames 51 are oriented vertically. A pair of upper limb members 33 are superposed on the integrated lower limb member 34 from the outside so as to sandwich it, and are integrally fixed by bolts 27.

A through hole 411 is formed in the vertical frame 41 of the upper limb member 33, a screw hole 531 is formed in the horizontal plate 53 of the lower limb member 34, and the horizontal plate 53 is tightened with the bolt 27 penetrating the vertical frame 41. Fixation is done. The bolt 27 is for fixing the rail member 11 to the leg portion 12 (see FIG. 6), but a bolt having a longer axial length than the common bolt 55 used in the rail type workbench 1 is used. ing. Although a plurality of bolts (two types of bolts 27 and 55) are used in the rail-type workbench 1, the bolts can be mounted without excess or deficiency in both the usage pattern shown in FIG. 1 and the non-use pattern shown in FIG. Is configured.

In the case of usage, all the

bolts

27 and 55 are used for assembly, but in the case of non-use, there are bolts 55 that are not used for assembly. Such bolts 55 are attached and held in the screw holes of the fastening plate 37. However, there is a fastening plate 37 in which the

vertical frames

41 and 51 overlap with each other with almost no space and the bolt 55 cannot be attached. Therefore, a tap is cut on the upper leg member 33 side of the vertical connection plate 35 to form a screw hole for holding the bolt 55. That is, in the non-use mode, as shown in FIG. 4, the bolts 55 used for fastening the upper limb member 33 are attached and held to the vertical connection plate 35 that is still fixed to the lower limb member 34 side.

Therefore, in the rail-type workbench 1 of this embodiment, the two rail members 11 are removed, and the legs 12 are in a compact non-use form in which the components are stacked as shown in FIG. Therefore, the storage space of the rail-type workbench 1 can be reduced. Then, when the tool magazine 71 is to be maintained, the operator moves it from the storage location to the target machining center 2, but the operator can carry the leg 12 and the two rail members 11 in the unused state. Since the weight is about 20 kg, the burden during transportation is greatly reduced. It can be mounted on an ordinary car and can be carried by one person.

The rail type workbench 1 in the usage form can be assembled by one person at the work site and can be connected to the machining center 2 as shown in FIG. Since the rail member 11 of the rail-type workbench 1 is supported by being fixed to the legs 12 and is also connected to the machining center 2, the rail 21 for moving the tool magazine 71 is stable. Since the rail 21 of the rail-type workbench 1 is long and extends beyond the transfer space provided in the front part of the processing line, the tool magazine 71 can be pulled out to the outside, which facilitates maintenance work and the like.

∙ Disassembling the components on the rail-type workbench 11 and assembling them into usage patterns or non-use patterns is a simple task of fastening and removing using

bolts

27 and 55. Since the bolts 55 are used in common except the bolts 27 for fixing the rails 27 to the leg portions 12, the positions of the bolts are not mistaken when changing the form. Since all the

bolts

27 and 55 are used or attached in both the use mode and the non-use mode, it is easy to manage the parts when not in use without losing the bolts.

Although one embodiment of the present invention has been described above, the present invention is not limited to these, and various modifications can be made without departing from the spirit of the present invention.
For example, the leg portion 12 of the above-described embodiment can be assembled by forming the upper limb member 33 and the lower limb member 34 as a pair of front and rear parts, but may be disassembled in the width direction.
In order to make the leg portion 12 easier to carry in the non-use mode shown in FIG. 4, for example, a caster is attached to the side surface of the lower end portion of the vertical frame 41, that is, the height of the fastening plate 37, and a handle is attached to the bracket 42. Good. As a result, even when the caster is in use, it does not particularly disturb the maintenance work, and in the non-use state, the caster can be moved while rolling while being tilted, which makes transportation very easy.

1... Rail type workbench 2... Machining center 3... Automatic work carrier 11... Rail member 12... Leg 21... Rail 22... Base frame 25... Stopper 27... Bolt 31... Adjuster 33... Upper limb member 34... Lower limb member 35... Vertical Connection plate 36... Horizontal connection plate 37... Fastening plate 41... Vertical frame 42... Bracket 51... Vertical frame 52... Horizontal frame 55... Bolt 71... Tool magazine

Claims

A rail connected to the machine side rail on the machine tool side,
And a leg for arranging the rail at a predetermined height,
The rail and the leg portion can be disassembled and assembled, and the leg portion is a rail type workbench having an assembly structure in which a plurality of constituent members are integrated.
The rail and the leg are constructed by assembling the rail and the constituent member with a predetermined number of bolts, and the assembly structure connects the disassembled constituent members of the leg with the predetermined number of bolts. The rail-type workbench according to claim 1.
The leg part composed of four legs is divided into an upper limb part and a lower limb part. Further, the upper limb part and the lower limb part are each composed of four vertical frames each including two upper limb members and two lower limb members. The rail-type workbench according to claim 2, wherein the member and the lower limb member are connected to each other using a connecting plate and the predetermined number of bolts, and are assembled in a usage pattern and a non-use pattern.
The rail type workbench according to any one of claims 1 to 3, wherein the leg portion has a skeleton structure in which a rod member is the constituent component, and a screw type height adjuster is provided at a lower end thereof.