JPH0718455Y2 - Billet charge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a billet charging device for supplying a material to a forging press or the like.

<Prior art> In a hot forging line such as a crankshaft, for automation and FMS (flexible production system),
Billets are automatically conveyed and automatically supplied, and a forging press uses a billet charging device for supplying a billet, which is a forging material, into the press.

Such a billet charging device is conventionally provided with a reciprocable carrier 52 along a guide 51 of a frame 50, and an upper portion of the carrier is formed on a side surface of the frame 50, as shown in FIGS. 6 and 7. It extends through the cutout hole 53, and a material holding portion 54 is formed in this extended portion so that the material is transferred on the upper surface of the main frame of the charging device (actually open sho 63
-6128).

<Problems to be Solved by this Invention> The above-described charging device has the following problems.

(I) Since the material is transferred on the upper surface of the main body of the charging device, the scale or the like separated from the material tends to enter the main body of the charging device, which causes a difficulty in maintenance.

(Ii) Since the guide for guiding the carrier is provided in addition to the cover for avoiding the splashing of the scale and the release agent, the structure becomes complicated and the entire apparatus becomes bulky.

The present invention has been made to solve the above-mentioned problems, and its purpose is to make a charging device very compact and to reduce the effects of scale and mold release agent. To provide.

<Means for Solving the Problems> In the present invention, as shown in FIGS. 1 and 3, the rack 2 is placed in a support cylinder 11 having a groove 19 formed in the lower surface, and its teeth are directed upward. The rack 2 is movably supported by being guided by the inner surface of the support cylinder in the material supply direction, and the rack 2 has a groove at the tip thereof.
A support bracket 9 is extended through 19 and the support bracket 9 is equipped with a material gripping body 1, and the rack 2 is configured to mesh with a pinion 3 which is driven and rotated.

<Operation> The material gripping body 1 mounted on one end of the rack 2 is the pinion 3
Is rotated together with the rack 2, and the rack 2 is guided and moved by the inner surface of the support cylinder 11, so that the support member and the guide member can be used in combination, and the drive of the pinion 2 causes the entire device to operate extremely. Can be made compact.

Further, since the billet is transferred along the lower surface of the support cylinder 11 by the support bracket 9 extending from the groove 19 on the lower surface of the support cylinder 11 and the material gripping body 1 attached to the support bracket 9, the scale from the groove 19 is scaled. , Can prevent the release agent from entering,
Maintenance and maintenance is also very easy.

<Example> This is an example applied to a hot forging press.
As shown in FIG. 2, the billet charging device according to the present invention is installed in front of the press, and the billet W is conveyed.
Clamps the material with the material gripper 1 and presses the 0-step saucer
To be able to supply 10.

The rack 2 is movably supported toward the press with its teeth 2A facing upward, and the material gripping body 1 is attached to the tip end thereof via a support bracket 9. This support bracket 9
The billet W is positioned below the rack 2 by vertically arranging a clamp claw 1A serving as a material gripping body at the tip and fixing the base end to the lower surface of the rack 2 at the tip.

Such a rack 2 is provided in a support cylinder 11 having a rectangular frame-shaped cross section, and is movably guided and supported by a horizontal roller follower 12 and a vertical roller follower 13. The horizontal roller followers 12 are rotatably attached to both sides of the rack 2 via a horizontal shaft 14, roll on a lower plate 15 'of the support cylinder 11, and are constrained by an upper floor plate 15. Vertical roller follower 13 is a holder
It is rotatably attached to both sides of the rack 2 via the vertical axis 17 and the vertical axis 17 so that it can roll along the floor plates 18 arranged on both sides of the inner surface of the support cylinder 11 (see FIG. 5). These roller followers
12 and 13 are arranged alternately in the longitudinal direction of the rack. The guide support is not limited to the roller follower, but may be V
It may be configured by forming a V-shaped or C-shaped sliding guide surface, and forming inclined surfaces on both sides of the rack 2 that come into contact with and slide on the sliding guide surface. A groove 19 is provided in the lower plate 15 ′ on the press side of the support cylinder 11 so that the support bracket 9 connected to the rack 2 can be located outside the support cylinder 11 through the groove 19. Note that stoppers 25 for the material gripping body 1 are provided on both side surfaces of the support cylinder 11.

The pinion 3 meshes with the rack 2 from above via the upper opening of the support cylinder 11, and is covered by the cover 20. On the side of this pinion 3, an AC servo motor 4 and a small
A lightweight reducer (cyclo reducer) 6 is installed via a base 21, and the drive shaft 22 of the pinion 3, the reducer 6 and the reducer 6 are installed.
The AC servo motor 4 is connected to the AC servo motor 4 by means of rubber tire type flexible shaft couplings (lab flex couplings) 7 and 8 so that the rack 2 can reciprocate in the supply direction by the rotational driving of the AC servo motor 4.

The AC servo motor 4 has an encoder 5 and is capable of feedback control of position and speed based on a command value.
The operation (stroke, speed) can be freely changed by a computer or a programmable sequencer (not shown).

As shown in FIG. 1, the material gripping body 1 has a pair of clamp claws 1A vertically arranged in the supply direction attached to a support bracket 9 by a pin 1C so as to be openable and closable in the supply direction, and is integrated with the clamp claw 1A. By interposing a compression coil spring 1D between the levers 1B, the pair of clamp claws 1A is biased in the closing direction,
When one of the clamp claws hits the stationary tray 10 and then is further stroke-moved and pushed open, the other clamp claw is opened interlockingly via the connecting pin 1E and the link 1F. Note that this material gripping body is not limited to this, and may be of a type that opens and closes with a commonly used air cylinder.

The above-described structure operates as follows.

(I) The billet W is clamped by the clamp claw 1A by causing the clamp claw 1A to be positioned on the conveyance path in the standby state and raising the billet W.

(Ii) The pinion 3 is rotated by the start of the AC servomotor 4, and the rack 2 moves toward the press.

(Iii) When the clamp claw 1A reaches on the pan 10, the clamp claw 1A is opened by the pan 10 or the air cylinder, and the billet W falls on the pan 10.

(Iv) The AC servomotor 4 rotates in the reverse direction, the rack 2 moves in the reverse direction, and one stroke is completed. The stroke and stroke curve (acceleration / deceleration curve) can be freely set by a computer or programmable sequencer.

The billet W on the tray 10 is transferred to the first step, the second step, etc. of the press by an appropriate transfer means, and is subjected to rough processing, finish forging and the like.

The hot forging press has been described above, but it goes without saying that the present invention can be applied to other material charging devices as well.

<Advantages of Device> As described above, the billet charging device according to the present invention moves the rack in the support cylinder having the groove formed in the lower surface, and guides the teeth upward to move the rack in the material supply direction toward the inner surface of the cylinder. The rack is supported as much as possible, a support bracket is provided at the tip of the rack through the groove of the support cylinder, and the support bracket is equipped with a material gripping body, so that the rack is meshed with a pinion that drives and rotates. Support tube is rack, support bracket,
It serves as a support member for the material gripping body and also as a guide member, and the entire device can be made extremely compact in combination with the drive by the pinion, and the support bracket and the support bracket in which the billet extends from the groove on the lower surface of the support cylinder. Since the material gripping body attached to the bracket transfers the material along the lower surface of the support cylinder, it is possible to suppress the intrusion of the scale and the release agent from the groove, and it is very easy to perform maintenance and maintenance.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a billet charging device according to the present invention, FIG. 2 is a side view taken along line II of FIG. 1, and FIG.
FIG. 4, FIG. 5 and FIG. 5 are sectional views taken along the line III, IV, V of FIG. 1, and FIG. 6 is a longitudinal sectional view showing a conventional example.
The drawing is a side sectional view taken along the line VII of FIG. 1 ... Material gripping body, 2 ... Rack, 3 ... Pinion, 4
...... Servomotor, 5 …… Encoder, 6 …… Decelerator,
7,8 …… Flexible shaft coupling, 9 …… Support bracket, 10 ……
0 process saucer, 11 …… support cylinder, 12 …… horizontal roller follower, 13 …… vertical roller follower, 19 …… groove.

Claims (1)

[Scope of utility model registration request] 1. A rack is movably supported in a support cylinder having a groove formed in its lower surface by being guided by the inner surface of the support cylinder in the material feeding direction with its teeth facing upward. A billet charging device, wherein a support bracket is extended through a groove of a support cylinder, a material gripper is provided on the support bracket, and a pinion that is driven and rotated is meshed with the rack.