JPH0637843Y2 - Machine tool work separator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a machine tool of a type in which a tip of a long work held by a spindle is machined and then the machined part is cut off. Regarding the work separator to receive.

[Conventional technology]

Conventionally, as a device of this type, a product unloading receiver in a machine tool disclosed in Japanese Patent Publication No. 59-11401, and an actual product SHO 56-387
There is a workpiece unloading device disclosed in Japanese Patent Publication No. 02. In all of the devices disclosed in these publications, a tool holder (or a tool rest) holding a tool for cutting a workpiece is provided with a product receiver (or bucket) that can be swiveled around a horizontal axis. When the tool holder approaches the work for cutting the work, the product receiver (or bucket) is set to a horizontal work receiving position, and when the tool holder retracts, the product receiver is tilted and It is configured to discharge the work.

[Problems to be Solved by the Invention] However, such a conventional device can be used when there is a space for mounting a product receiver on a tool holder (tool base) holding a tool, but when this space is not available, Cannot be used of course. For example, when using a comb blade type tool rest composed of a plurality of tools arranged horizontally and vertically, it is difficult to attach the product receiver to the tool rest.

If it is not possible to attach the product receiver to the tool stand, it is considered that the product receiver may be arranged so as to move from the front of the work to be separated to the bottom of the work. However, this method cannot be adopted in a machine tool in which a facing tool stand holding a tool for end face machining is provided in front of a work.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a work separator for a machine tool that can effectively use a narrow space to receive and discharge a separated work.

[Means for solving problems]

The work separator according to the present invention includes a cylinder arranged so as to be rotatable around a vertical axis on the side of a work held by a spindle, a work receiving chute held at the tip of a piston rod of the cylinder, A cam for restricting the position of the work receiving chute when it is moved by the piston rod, and the work receiving chute advances toward the work axis by the forward movement of the piston rod of the cylinder, and its tip is below the work axis. It is characterized in that the tip of the tip comes into the lower part of the work when it approaches.

〔Example〕

 An embodiment of the present invention shown in the drawings will be described below.

FIG. 1 is a plan view of a work separator according to an embodiment of the present invention, and FIG. 2 is a side view thereof. In the figure, 1 is a work being held by a spindle (not shown) and 2 is a work 1
Is a guide bush holding the workpiece 1, 3 is a comb blade type tool post arranged on both sides of the spindle holding the work 1, 4 is a tool tool fixed to the tool post 3, and 5 is a frame. The tool rest 3 is movable in the vertical direction and the horizontal direction. Although not shown, an opposed tool post is provided in front of the spindle.

Reference numeral 7 denotes a pneumatically or hydraulically actuated cylinder that is horizontally arranged laterally to the work 1 held on the main shaft, and is held via a pin 8 so as to be rotatable about an axis perpendicular to a bracket 9 as a center. A piston rod 10 of the cylinder 7 holds a work receiving chute 11 at its tip. The work receiving chute 11 has such a size that its tip reaches below the work 1 when the piston rod 10 extends, and its tip shape avoids the tool rest 3. It is designed to go under the work 1. In addition, as shown in Fig. 2, a work receiving chute
The bottom surface of 11 is inclined, and the received work can be discharged by gravity. A product container 12 receives the work discharged from the work receiving chute 11. 13 is a cam arranged along the moving path of the tip of the piston rod 10, 14 is a cam follower attached to the tip of the piston rod 10, 1
Reference numeral 5 is a spring for pressing the cam follower 14 against the cam 13 by pushing and rotating the cylinder 7. Cam 13
Has a function of restricting the position of the work receiving chute 11 when the work receiving chute 11 is moved by the piston rod 10. Here, the shape of the cam 13 is such that when the piston rod 10 is retracted and the work receiving chute 11 is in the retracted position as shown in FIG. 4, the tip of the work receiving chute 11 is the tool post 3
As shown in FIG. 3, the tip of the work receiving chute 11 does not interfere even when the work receiving chute 11 advances due to the forward movement of the piston rod 10, and the tip of the work receiving chute 11 does not interfere with the work axis. When it approaches the lower part of the workpiece, it turns in the direction of arrow A in FIG. 3, and its tip enters into the lower part of the work as shown in FIG.

Next, the operation of the work separator having the above configuration will be described.
Normally, the work receiving chute 11 is on standby at the standby position shown in FIG. When the work 1 is separated by the cutting tool, the cylinder 7 operates and the piston rod 10
And the work receiving chute 11 held at the tip goes to receive the work. At this time, the cylinder 7 has a pin 8
Since the cam follower 14 at the tip of the piston rod is pressed against the cam 13 by the spring 15, the work receiving chute 11 passes the position regulated by the cam 13, and FIG. As shown in FIG. 1, the tool rests under the work without interfering with the tool rest 3.
Thus, only the work can be received reliably and without cutting chips, and the received work can be shot 11.
Accommodated in a product compartment 12 along. After that, the piston rod 10 retracts, and the work receiving chute 11 retracts and returns to the standby position as shown in FIGS. 3 and 4.

[Effect of device]

As explained above, the work separator of the present invention is
A cylinder is used to move the work receiving chute to the work receiving position from the sideways direction of the spindle, and at the same time, a cam is used to avoid the obstacles (such as the tool rest) in the narrow tooling zone and to enter under the work. As a result, the work receiving chute can receive the work securely without cutting chips, and the space required for moving the work receiving chute can be small. Therefore, a comb blade type tool post or an opposing tool post It has the effect that it can be attached to a machine tool equipped with.

[Brief description of drawings]

FIG. 1 is a plan view of a work separator according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIGS. 3 and 4 are plan views for explaining the position of a work receiving chute. 1 …… Workpiece, 2 …… Guide bush, 3 …… Comb blade type tool rest, 4 …… Blade, 5 …… Frame, 7 …… Cylinder, 8 …… Pin, 9 …… Bracket, 10 …… Piston rod , 11 …… Workpiece receiving chute, 12 …… Product box, 13 …… Cam, 14 ……
Cam follower, 15 ... Spring.

Claims (1)

[Scope of utility model registration request] 1. A cylinder arranged so as to be rotatable around a vertical axis on a side of a work held by a main shaft, a work receiving chute held at a tip of a piston rod of the cylinder, and the work receiving. The work chute is provided with a cam that regulates the position of the work chute when it is moved by the piston rod, and the work receiving chute advances toward the work axis by the forward movement of the piston rod of the cylinder, and its tip approaches below the work axis. At this time, the work separator of a machine tool is characterized in that the tip of the work piece is inserted below the work.