JPS59182004A - Automatic feed device of bar material - Google Patents

Abstract

PURPOSE:To improve the quality of a work and reduce the floor space by constituting so as to automatically feed a slender bar material into the head stock of a work machine. CONSTITUTION:A material receiving bed 12 mounted on a base plate 1 is arranged along the axial direction of a through hole 14 formed in a head stock 13. Next, a feed bar 23 sends out a material 2 inserted in the stock 13 in response to a command from a control unit 34. The bar 23 located at a position facing the tip 17a of a thrust shaft 17 of an arm B15 is moved when it is pushed by the arm B15. Therefore, an arm 24 is also moved along a guide shaft 16. In addition, the feed quantity and feed timing of the bar 23 is controlled by the unit 34. According to this constitution, the quality of the work is improved and the floor space can also be reduced.

Description

[Detailed description of the invention] The present invention allows a long and narrow material to be placed in the headstock of a processing machine.

The present invention relates to an automatic bar feeding device that allows variable feeding to improve the quality of workpieces and reduce floor space.

Conventionally, in order to process many pieces of the same product using an automatic processing machine, etc., rather than attaching the material to the headstock each time and processing it, a long and narrow bar was formed in the center of the headstock. Ge1
A method is adopted in which the bars are inserted into a chamber and processed while being fed out one after another.

However, in this case, a feed rod with approximately the same length as the headstock through-hole must be placed in series with the bar, which makes the device large, requires a large area of floor space, and is expensive. There were some drawbacks. In addition, in the conventional technology, the length of the bar is longer than the headstock through hole, so there is a decrease in accuracy due to runout of the bar.
A feeding device for f+i delivery, from supplying fine wood to feeding it into the headstock, had not been proposed.

The present invention was proposed λ111 in order to solve the above-mentioned drawbacks, etc., and its purpose is to increase the length of the material that can support the material over the entire length of the main shaft through hole while conveniently using a long and slender bar. Another object of the present invention is to provide an automatic bar feeding device that reduces the floor space due to bar deflection during machining and operates simply and reliably.

In order to achieve the above object, the present invention sequentially feeds a material consisting of elongated rods from a material feeding means onto a material receiver disposed on the same line as the axis of a headstock, and this material is fed by a pushing means. After being inserted into the headstock, a feed frame moving means having a feed rod disposed along the axis of the headstock at approximately the same position as the material fed into the material receiver;
The material pushed into the headstock is sequentially fed, and when the pushing means is moved by the feed frame moving means, the feed rod is moved from the above position to prevent interference between the feeding loincloth and the pushing means. , characterized by an automatic bar feeding device configured to automatically feed the material into the headstock by controlling the material feeding means, pushing means, and feeding frame moving means by a control means. be.

Embodiments of the present invention will be described below based on the drawings.

First, we will clarify the material feeding means. As shown in FIG. 1, materials (2) consisting of elongated rods are arranged side by side on a material shelf (3) and are sequentially fed in the direction of arrow A. The material shelf (3) has support members A (3a), B (3b), and C on which the material (2) is loaded.
(3c) etc., and the supporting member A (3a) etc. are the bracket A (4) fixed to the base plate (11) of the device.
a), B (4b), and C (4C). Further, the support member A (3a) and the like are formed so as to descend and incline in the feeding direction of the material (2), so that the material (2) can be fed sequentially by the action of gravity. Also, as will be explained later, the support member B (
3b), C (3c) has a material (
A locking portion (5) is formed for preventing the drop of 21 and for positioning the same.

On the other hand, the rotation axis (6) is arranged in parallel with the material (2), supporting members A (3a), B (3b), C (3c) and brackets A (4a), B (4b), C (4C ), and one end of a lever A (7) is fixed to one end thereof. Lever A (7).

A cylinder A (8) that acts in the direction of rotating the rotation @ (6) is pin-coupled to the other end. Also, the rotation axis (
6) The lever Bα that attaches the claw (9) to one end side;
The other end of CI is fixed. From the above configuration + a,
By operating the cylinder A (8), the rotation shaft (6) rotates, and the claw (9) moves up and down.

Next, the material (2) is fed onto the base plate (1).
A material pedestal α supporting the material is placed. This material pedestal (
The through hole (14+) formed in the 0th floor of the headstock is arranged along the axial direction, and its cross-sectional shape is shaped like a V block (14+) for positioning the material (2) in a fixed position. (shown in Figures 2 and 4).

Next, I will explain the trap and the means of entry.

The arm Bas has a guide shaft (
16) Part of that is 'ftl! I is pivoted, and the other end is supported by a push shaft (17). or,
As shown in Fig. 4, arm B (151, cylinder BQ
A mounting plate (2F, 1) is provided to which the piston α of 8) is attached. The guide shafts (le) are arranged at opposing positions with a small gap in between. Both ends of the guide shaft (le) are fixed to the base plate (1) and pivoted to the filter frame (1a) by bushes (21). Cylinder B (
1B is also supported by the frame portion (1a).

Further, the cylinder BQ81 is provided with a control valve (22).

With the above configuration, arm B (1!19) reciprocates along guide axis αe by actuating cylinder B.

The feed rod (23) is formed from an elongated rod that is slightly thinner than the material (2), and is arranged parallel to the material receiving table (13), and
During operation, it is placed at approximately the same position as the material (2) fed onto the material receiving table az. Its one end side is attached to one end side of arm A (24) of the feed frame moving means to be described later, and the other end side is attached to arm C (25), which fixes one end of it to the end of the guide shaft (IF5). ) is pivotally supported at the other end via a bearing (26).

Therefore, the feed rod (23) is arranged coaxially with the penetrating entry side of the headstock Q3).

Next, the means for moving the feed rod will be explained.

As shown in FIG. 4, one end of arm A (24) has a plate member (2
7) is attached, and the other end side is provided with a block (29) that is pivotally supported by the guide shaft (16) and forms a through hole (28). In addition, the block (29) has a boss (3) formed integrally with the hole (28), and a boss (30) formed integrally with the hole (28).
) In addition to the upper gc27c (28), a spline portion (31) having a larger diameter is formed inside the upper gc27c (28). Further, one end side of the lever D (32) is fixed to the guide shaft α6) and is formed with a spline shaft portion (33) that meshes with the spline portion (31) of the boss (3o). Also, the other end 'AIJK of lever D (32) is connected to lever A (7
) and the cylinder person (8) is bound to the bottle.

With the above configuration, when the spline part (31) and the spline shaft part (33) are engaged with each other, the cylinder A (8
), arm A (24) and arm C (25) rotate around the guide shaft (16),
The feed rod (23) also rotates by degrees Celsius accordingly. Also, the fourth
As shown in the figure, when the feed rod (23) rotates and is in the upper position as shown in the figure, it is formed so that it does not interfere even if the arm B05) moves.

Next, the control means will be explained.

Control equipment! (34) is formed to move with the control mechanism of a processing machine (not shown) having a headstock 09, and includes headstock 0, cylinder A (8), cylinder B discharge, limit switch A (35), and B ( 36) and control them. In addition, limit switches A (35) and B
(36) engages with the dog (37) of arm B05), and arm B (1, 51 (same as arm A (24))
This is to detect the front and rear end positions of.

The structure of the device will be explained in more detail with reference to FIGS. 2 and 4.

As shown in FIG. 2, the lever CQI (the same applies to the lever B00) rotates wJ around the rotation axis (6) as described above. The material (2) descends along the platen (C) (4C) and stops in a state where it is locked in a locking part (5) formed protruding from the end thereof. When the lever C (11) is rotated counterclockwise in the figure (i.e., the position where the cylinder A (8) is lowered), the material (2) is placed in the above state and the material receiver (121 The material (2) that was fed before is loaded on top.This loaded material (2) is placed on the headstock (
+31 side, material feeding is completed, and when the material runs out and arm A (24) and arm B (151) return to their original positions, lever C (Ill) rotates clockwise. Due to this rotation, The most advanced material (2) that is locked on the locking part (5) rides on the claw (9) of the lever ~Cαυ.The claw (9) is formed so as to be inclined toward the material receiving table 02). Therefore, the material (2) is fed onto the material receiving table O2 due to its own weight.

As shown in Fig. 3, the cylinder A (8) is attached to the base plate (1).
The piston (39) is fixed to the side of the bottle (3B)
K is connected. The pin (38) is connected to the other end of lever A (power) and lever D (32).

One end side of lever A (7) and lever D (32) is connected to the rotation shaft (6) and guide shaft (16) as described above.
are fixed respectively.

Therefore, by operating cylinder A (8), lever A (7) and lever D (32) are rotated in opposite directions.

Further, the spline portion (31) shown in FIG.
(24) is the headstock (13) along the guide axis α6)
When the lever D (32) starts to move in the direction, the lever D (32) is disengaged from the spline shaft (33). Also, the distance H between the center (40) of the grain milling center (40) of arm A (24) and the center (41) of feed a (23) and its relative position are exactly at the center when cylinder A (8) is lowered. (
41) is formed so as to coincide with the center (42) of the material (2) on the material holder α2.

Next, the operation of this embodiment will be explained using a flowchart shown in Fig. 5.

Step (101) is material transfer, in which material (2) is sent from material shelf (3) by material feeding means. Step (102) shows the rise of cylinder A (8),
.

As shown in (104), arm A (24) of the feed frame moving means
) is positioned at the raised position shown in the fourth prisoner, and the lever B0 is
0) and the claw (9) of the lever COD rises.

Therefore, as in step (105), the phase charge (2) is fed onto the charge tray 03 43. Next, as in step (106), the arm B06) of the push-in block is moved to the cylinder B (headstock Q3 by 181) f! II, press U'f'' at the tip (1'7 a) of press=++7+, press (2), and turn this to the main shaft α3)0. ) Push into the through hole α → ゛″f
Ru. In step (107), limit switch A (35)
calibrates the front end position of arm Ba9, and performs work 8 (108
) Thea'-A B(5461 Scene IJ f B(La
Move backward from lK and return to the original position. In step (109), limit switch B (36) restores arm B05).
Check with. Next, in step (110) cylinder A (8
) descends, and as in step (11,1), arm A (24
The feed attached to the holder is set to the 1st (23) or feed position.

At the same time, as in step (112), the claw (9) descends, and the next phase material (2) or supporting member B (4b), C (, 4c) (
1) Lock in the locking part) and wait.

Next, as shown in step (113), based on the command from the control device (34,), the feeder (23) is pushed into the main spindle ←9 to eject one piece of material (2). 23) is moved by the tip (1) of arm B (151 push shaft a'/).
7a) in a position opposite to the
- Arm B (1) Press by arm A.
(24) also moves along the guide axis α6).

Further, the feed amount, feed timing, etc. of the feed rod (23) are controlled by a control device (34). Process (114)
The feeding is completed, and in step (1i5) arm A
(24) and the feed rod (23) are restored.

Thereafter, the same process is repeated to continuously feed and process the ladle material (2).

As mentioned above, in this embodiment, after pushing the material (2) into the headstock α~ with arm B (J!';+), arm A (
Since the material is fed by the feed rod (23) of 24), the length of the feed section is halved compared to the conventional technology.

The floor space of the device is thus reduced. Also, the structure of the device is
Molded from a cylinder and a link mechanism connected to it, the operation is reliable, the structure is simple, and the reliability is high. Furthermore, the movement of the feed payload (23) and the movement of the arm kJtJω are performed by one cylinder B (L~), and the rotation of the Lepano (7) and lever D (32) is also performed by one cylinder 8 (8). Therefore, the device is compact and can be manufactured at a low cost.Of course, the cylinder for operation may be of a different type.

Furthermore, the connection between the arm (24) and the lever D (32) is not limited to the engagement between the spline portion (31) and the spline shaft portion (33); any means that can engage the two may be used. .

As is clear from the above description, according to the present invention, highly accurate processing can be achieved, floor space can be reduced, and effects can be achieved easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the overall structure of an embodiment of the present invention, No. 27+ is a side view showing details of the material feeding section, and Fig. 3 is a side view showing the rotating structure of the guide shaft and the rotating shaft. 4 is a side view showing the structure of the main part of the feed frame moving means, and FIG. 5 is a flowchart diagram explaining the operation of this embodiment. 1... Pace board 1a... Frame body part 2...
Material 3...Material shelves 3a, 3b
, 3 c, --- Support members A, B, C4a, 4
b, 4 c--Bracket A, H, C5...
Locking part 6...Rotation shaft 7...Lever A
8...Cirin 7-A9...Claw
10... Lever B11... Lever C1, 2.
... Material holder 13 ... Headstock 14 ... Through hole 15 ... Arm B 16 ... Guide shaft 17 ... Push shaft 17a ... Tip part 18 ...
・Cylinder B 19... Piston 20... Mounting plate 21... Bush 22... Control valve
23...Feeding rod 24...Arm A 2
5...Arm C26...Bearing 27...
・Plate member 28...hole 29・Block 3
0...Boss 31...Spline part 32...
... Lever D 33 ... Tin line shaft part 34
...Control device 35.36...Limit switch A, B37...Dog 38...Bin 39...Piston
40...Rotation center 41.42...Center 101-115...Each process Figure 2 Figure 3'' + Figure 4 Procedure amendment (voluntary) Showa 5s tr-4p + 2 evening 11 ('11'j'l・Agency゛帛Blue'1゛Y
1,111 cases (%) of 1111 cases.
No. 313 2 Title of the invention Automatic bar feeding device 3
? 1' with 1\1'1,! if system, 111 places (i person f
L Name Seiwa Iron Works Co., Ltd. (foreign name) 4
Agent 5 Showa year
Moon 116 Tei 111. Sentence/l elephant. “Detailed Description of the Invention” column of the specification - Discussion

Claims (1)

[Claims] a material feeding means for feeding a material made of an elongated bar onto a material cradle disposed on the same line as the axis of the headstock; a pushing means for pushing into the material; a feeding rod disposed along the axis of the headstock at substantially the same position as the material fed onto the material receiver; and a feeding rod that engages with the feeding rod to move the pushing means. Sometimes, the feed rod is moved to a position where it does not interfere with the pushing means, and the feed rod is moved in the axial direction of the headstock.
Jh'''5'' feed rate moving means; the above-mentioned material feeding means;
1. An automatic rod feeding device characterized by comprising: a pushing means and a control means for controlling the operation of the feeding rod moving means.