JPH0688190B2 - Material supply device for machine tools - Google Patents

Description

Description: [Industrial application] The present invention relates to a material supply device for a machine tool, which is improved so that a large amount of material before supply can be held in a stacked state.

[Prior Art] For example, in a numerical control type machine tool, materials such as a round bar are fed from a material feeding device to a feeding portion one by one at intervals corresponding to a machining time.

This supply device consists of a mounting plate that is installed in an inclined state on the upper part of the machine tool, and the materials lined up on the mounting plate are sent to the supply unit at predetermined intervals for cutting and drilling. Undergo a series of processing such as.

By the way, in recent years, there has been a demand for unmanned factories and robots to be able to operate machine tools for long periods of time.
For this purpose, it is necessary to increase the amount of material loaded on the supply device.

In order to meet this demand, in order to increase the material loading amount with the above-mentioned feeding device, the loading plate must be expanded outward or bent in an accordion shape to set a large loading area. The reality is that there is none.

[Problems to be Solved by the Invention] This problem has a problem that the loading amount of the material is limited in spite of the mounting plate protruding outward or being bulky upward, and moreover, space saving is hindered.

[Object of the Invention] The present invention has been made in view of the above circumstances, and an object of the present invention is that it can be set so that a large amount of material can be loaded, and it is convenient for unmanned factories and robots in a factory. It is intended to provide a material supply device for a machine tool having an excellent effect such as that

[Means for Solving the Problems] According to the material supply device for a machine tool according to the present invention, a substantially vertical base frame installed on one side of the machine tool and fixed to the left and right of the base frame. An inclined plate, a drive shaft supported by bearings attached respectively above and below the inclined plate, a drive shaft having an external thread formed on the outer surface thereof, and an internal screw formed on the inside thereof, are formed on the external screw of the drive shaft along the drive shaft. A connection ring screwed so as to be able to advance and retreat, and a conveyance member fixed to the connection ring and moving in the up-down direction along the inclined plate according to the displacement of the connection ring in the advance and retreat direction, and a mounting table formed at the upper end. , A guide for supporting a large number of vertically stacked multi-layered materials on the mounting table of the transport member between the inclined plate and the drive shaft by rotating the drive shaft. And displaces the conveying member upward, and remains on the mounting table. A driving member for intermittently feeding the raw material from the uppermost one to the working portion of the machine tool at a time interval according to the working.

[Operation and Effect of the Invention] According to the present invention configured as described above, since the supply device is provided on the side surface of the machine tool, the space that is originally a dead space is effectively used and space saving is achieved. Since the material loading direction is substantially vertical along the side surface of the machine tool, the material loading amount can be set to be large without being bulky to the outside.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. First, in FIGS. 1 and 2, the material supply device 1 for a machine tool is installed along a side surface of the machine tool 2,
It is provided with horizontally elongated horizontal lower beams 4 and 5 which are placed on the installation surface 3 and an upper beam 6 which is separated from these lower beams directly upward. And
The lower beams 4 and 5 are connected by a horizontal beam 7, and the lower beam 4 and the upper beam 6 are connected.
And are connected by a vertical beam 8 to form a base frame 9.
10 and 11 are inclined plates that are located with a predetermined gap from each other,
These are provided so as to extend across the lower beam 5 and the upper beam 6, and are attached at three locations in the lateral direction. Reference numeral 12 is an adjusting plate, which can be re-attached to the upper beam 6 by a long hole 13 and a bolt 14 so as to be vertically adjustable as shown in FIG. A guide plate 15 is provided on the upper end of the adjusting plate 12 so as to extend to a processing portion (not shown) of the machine tool 2.

Now, 16 and 17 are bearings, which are attached to the upper and lower portions of the inclined beams 10 and 11, respectively. Each end of the drive shaft 18 is rotatably supported by these bearings 16 and 17,
A bevel gear 19 is directly connected to the end projecting downward from the bearing 17, and a male screw is provided on the portion of the drive shaft 18 between the bearings 16 and 17.
Forming 20. Reference numeral 21 is a connection ring, and an internal thread 22 attached to the external thread 20 is formed on the inner peripheral surface of the connection ring. Reference numeral 23 denotes a plate-shaped conveying member that is bolted to the connection ring 21, and is located so as to sandwich the inner peripheral edges of the inclined plates 10 and 11 with the connection ring 21. A horizontal mounting table 24 is bolted to the upper end of the transport member 23.
It is mounted by means of 25 and is opposed to the bearing 16 with a predetermined gap.

Further, a mounting plate 25 is fixed to the inclined plate 10 as shown in FIG. 4, and a guide 27 having a pair of elongated holes 26 extending in a slender shape along the inclined plate 10 is provided on the mounting plate 25. It is fastened with bolts 28. The guide 27 can be moved and adjusted in the direction in which it separates from and contacts the inclined plate 10 within the length range of the elongated hole 26 by tightening and loosening the bolt 28 (indicated by arrow A). Reference numeral 29 is a round bar as a material, and a large number of these are stacked on the mounting table 24, and the stacked state is maintained by being positioned so as to be sandwiched between the guide 27 and the inclined plate 10. Reference numeral 30 denotes a shaft provided in the horizontal direction, to which a gear 31 meshing with the bevel gear 19 is attached. The shaft 30 is rotationally driven by a pulse motor 32 as a driving member.

Further, in the above configuration, when the machine tool is operating, a large number of round bars 29 are vertically stacked on the mounting table 24 of the transport member 23, and the uppermost step thereof reaches the guide plate 15 of the adjusting plate 12. Has reached. Round bars 29 are lined up on the guide plate 15 up to the processing section of the machine tool 2.

When the processing section finishes processing the round bar 29 in this state, the guide plate
Since the round bar 29 on 15 moves due to the inclination, a position sensor (not shown) detects this movement and energizes the pulse motor 32. Then, the pulse motor 32 rotates by a predetermined angle, and the drive shaft 18 rotates via the shaft 30 and the gears 31 and 19. At this time, since the male screw 20 of the drive shaft 18 and the female screw 22 of the connection ring 21 are screwed together, the connection ring 21 together with the conveying member 23 is rotated by the rotation of the drive shaft 18 in an amount corresponding to the diameter dimension of the round bar 29. Only in the direction indicated by arrow B, the uppermost round bar 29 is moved onto the guide plate 15. Then, due to this movement, the limit switch (not shown) is cut off, the energization state to the pulse motor 31 is cut off, the rotation of the shaft 30 stops, and the shaft 30 stands still.

In this way, each time the processing of the round bar 29 is completed, the round bar 29 is raised by the transport member 23 one after another and sequentially transferred onto the guide plate 15. When the round bar 29 on the mounting table 24 is moved to the front guide plate 15 side, the pulse motor 31 is energized, and the motor 31
Rotate in the opposite direction. As a result, the drive shaft 18
It is rotated via 30 and gears 31 and 19, and together with the connecting ring 21, the conveying member 23 descends and returns to its original position. In this state, the round bar 29 is replenished on the mounting table 24 to prepare for the operation of the machine tool 2.

In this way, in the above configuration, since the material supply device 1 is installed on the side surface of the machine tool 2 which originally becomes a dead space,
Space can be saved without spreading to the outside. Still, since the materials are stacked vertically, the amount of materials that can be loaded becomes as large as eight hours, which makes it possible to realize unmanned factories and robots, and contribute to a significant improvement in productivity.

In the above embodiment, the male thread 20 of the drive shaft 18 is connected to the connecting ring 21.
Since the female screw 22 is attached, the upward displacement of the connecting ring 21 can be accurately transmitted to the rotation of the drive shaft 18 without any increase. Thus, even if the material is long in the lateral direction like the round bar 29 of the above-described embodiment, it can be moved while maintaining its straightness without tilting.

In the above embodiment, a male screw is used to move the conveying member 23 up and down.
Although 20 and the internal thread 22 are applied, a rack, a pinion, or a chain gear and a chain may be used.

In addition, in concrete implementation, various changes can be made without departing from the paper of the present invention.

[Brief description of drawings]

FIG. 1 is a front view of the material supply device, FIG. 2 is a side view of the same, and FIGS. 3 and 4 are enlarged views of essential parts. In the figure, 1 ... Material supply device, 2 ... Machine tool, 9 ... Base frame, 23 ... Conveying member, 27 ... Guide, 29 ... Round bar (material), 32 ... Pulse motor (driving member) )

Claims (1)

[Claims] 1. A base frame (9) which is installed on one side surface of a machine tool (2) and has a substantially vertical shape, and inclined plates (11, 12) fixed to the left and right of the base frame (9), A drive shaft (18) supported by bearings (16, 17) mounted above and below the slanted plates (11, 12), and a male screw (20) formed on the outer surface, and a female screw (22) formed inside The external thread of the drive shaft (18)
Connection ring screwed to (20) so that it can be screwed back and forth along the drive shaft.
(21), which is fixed to the connecting ring (21), moves vertically along the inclined plates (11, 12) with the screwing back and forth displacement of the connecting ring (21), and mounts it on the mounting table ( The transport member (23) on which the 24) is formed, and a large number of materials (29) stacked in the vertical direction in multiple stages on the mounting table (24) of the transport member (23)
1, 12) for guiding between the guide (27) and the drive shaft (18) by rotating the transfer member (23) via the connecting ring (21) to displace, A driving member (32) for intermittently feeding the material (29) existing on the mounting table (24) from the uppermost one to the machining portion of the machine tool (2) at time intervals according to machining. Material supply device for machine tools equipped.