JP2008126366A - Work dispensing device - Google Patents

Abstract

An object of the present invention is to reliably receive a processed workpiece in a bucket. It also prevents the discharge of chips outside the machine.
A workpiece W dispensing apparatus that cuts off a processed workpiece W held on a spindle and dispenses it from a dispensing position P has a workpiece receiving port 64 formed on a side wall 53 facing the front end surface of the workpiece W. The workpiece transfer bucket 14, the lid 61 provided at the opening of the bucket 14, and the bucket 14. The bucket 14 has a receiving position R and a dispensing position P where the workpiece receiving port 64 is opposed to the front end surface of the workpiece W. Transport means for transporting in between, and opening / closing means for opening and closing the lid 61 so as to close the lid 61 are provided except that the lid 61 is opened at the payout position P. The conveying means includes a moving mechanism that moves the bucket 14 in the direction of the center axis of the spindle so that the bucket 14 at the receiving position R is fitted over the workpiece W through the workpiece receiving port 64. The work W is cut off in a state where the bucket 14 is put on the work W.
[Selection] Figure 1

Description

  The present invention relates to a machine tool, and more particularly, to a workpiece dispensing device that dispenses a machined workpiece dropped from a lathe spindle to the outside of the machine.

  This type of workpiece dispensing device conveys a workpiece transfer bucket and bucket from a receiving position for receiving a processed workpiece that can be dropped from the spindle from below to a dispensing position for discharging the received workpiece to the outside of the machine. Conveying means, and the conveying means includes a swing arm that fixes the bucket to the tip, and a drive means that swings the swing arm about an axis parallel to the main axis center line. (For example, refer to Patent Document 1 and Patent Document 2).

In the workpiece dispensing apparatus, when the processed workpiece is received by the bucket, there is a risk that the workpiece may fall from the opening of the bucket. In addition, chips that should not be discharged outside the machine may enter the bucket and be discharged together with the workpiece.
JP-A-9-314403 Japanese Patent Laid-Open No. 11-10407

  An object of the present invention is to provide a workpiece dispensing apparatus that can reliably receive a processed workpiece in a bucket and can prevent chips from being discharged out of the machine.

  A workpiece dispensing device according to the present invention is a workpiece dispensing device that cuts off a processed workpiece held on a spindle, conveys it to a dispensing position, and dispenses the workpiece from the dispensing position. The workpiece dispensing device receives the workpiece on the side wall facing the tip surface of the workpiece. The workpiece transfer bucket in which the inlet is formed, the lid that can be opened and closed at the opening of the bucket, and the bucket are transferred between the receiving position and the dispensing position where the workpiece receiving port is opposed to the front end surface of the workpiece. And an opening / closing means for opening and closing the lid so as to close the lid, but the conveying means is fitted to the workpiece through the workpiece receiving port. It is equipped with a moving mechanism that moves the bucket in the direction of the spindle center line so that it can be covered, and the workpiece is cut off while the bucket is put on the workpiece. It is what is adapted.

  In the workpiece dispensing apparatus according to the present invention, the workpiece is received by the bucket through the receiving port by moving the bucket at the receiving position in the axial direction parallel to the spindle center line, and at that time, the opening of the bucket is It is closed by a lid. Therefore, the workpiece does not fall from the opening of the bucket, the processed workpiece can be reliably received by the bucket, and the chip can be prevented from entering the bucket by the closed lid. Can be prevented.

  In addition, the opening / closing means has a hinge connecting the lid to the opening edge of the bucket so that the lid closes the opening of the bucket by its own weight, and a swing arm so as to open the lid against the dead weight of the lid at the dispensing position If an opening member that pushes the lid by swinging is provided, the lid can be opened and closed automatically.

  Further, a payout opening is provided at the payout position, and the door is provided at the payout opening so as to be closed by its own weight, and the door is opened by pushing the lid by the opening member. Can be opened and closed automatically.

  According to this invention, the processed workpiece can be reliably received by the bucket, and discharge of chips to the outside of the machine can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the following description, front and rear refer to FIG. 1 as a reference, the left side of FIG. 1 refers to the front, the opposite side refers to the rear, and the left and right refers to the left and right sides when viewed from the front. .

  FIG. 1 shows a lathe as viewed from the tip (right end) side of a spindle (not shown) having a center line C extending in the left-right direction. FIG. 2 shows a processed round bar-like workpiece W held on the main shaft.

  The front of the main shaft is covered with a front cover 11. A horizontal support shaft 12 extending in the left-right direction is provided below the main shaft and the front cover 11. The support shaft 12 is rotated around its axis and moved in the axial direction by a driving means (not shown). A swing arm 13 is fixed to the support shaft 12. A bucket 14 is fixed to the tip of the swing arm 13.

  A discharge outlet 21 is provided in the front cover 11. A chute 22 is provided on the peripheral surface of the discharge outlet 21. The chute 22 includes a horizontal top wall 31, a forward and downward inclined bottom wall 32, and left and right side walls 33. An upper edge portion of the flat door 41 is connected to the front edge portion of the top wall 31 by a first hinge 42. The door 41 closes the front opening of the chute 22 by its own weight. On the rear edge portion of the top wall 31, a pushing member 43 is provided integrally therewith so as to protrude rearward from the front cover 11.

  As shown in detail in FIG. 2, the bucket 14 has a rectangular opening and includes a front side wall 51, a rear side wall 52, a left side wall 53, a right side wall 54, and a bottom wall 55. A rear edge of a rectangular flat lid 61 that is slightly larger than the opening of the bucket 14 is connected to the upper edge of the rear side wall 52 by a second hinge 62 so as to be opened and closed. The lid 61 has an overhang 63 that protrudes laterally from the rear side wall. The left side wall 53 is provided with a substantially U-shaped notch receiving opening 64 having an open upper edge.

  The receiving position R is on the right extension of the center line C of the spindle. In FIG. 1, the bucket 14 positioned at the receiving position R is indicated by an imaginary line. The lid 61 shown in FIG. 1 shows a state in which the opening of the bucket 14 is open, but the lid 61 is configured to close the opening of the bucket 14 by its own weight. The center of the arc formed below the receiving port 64 of the bucket 14 at the receiving position R is made to coincide with the center line C of the main shaft.

  In FIG. 1, a bucket 14 positioned at the payout position P is shown by a solid line, and this bucket 14 has its opening connected to the rear opening of the chute 22.

  When the machining of the workpiece W approaches, the arm 13 is swung clockwise from the standby state, and the bucket 14 is moved to the receiving position R. When the processing of the workpiece W is completed, the bucket 14 is moved to the left together with the arm 13. Then, the bucket 14 is put on the work W through the receiving port 64. In this state, the workpiece W is cut off. The cut workpiece W is received by the bottom wall 55 of the bucket 14. In this case, since the opening of the bucket 14 is closed by the lid 61, the workpiece W does not fall from the opening of the bucket 14. Further, there is no worry that the chips enter the bucket 14. When the work W is received in the bucket 14, the bucket 14 is moved to the right and returned to the original receiving position R.

  When the bucket 14 is returned to the receiving position R, the arm 13 is swung counterclockwise and the bucket 14 is moved to the payout position P. In the middle of this, immediately before the opening of the bucket 14 is connected to the rear opening of the chute 22, the pushing member 43 pushes the protruding portion 63 of the lid 61 backward. Then, the lid 61 is pivoted clockwise around the second hinge 62, and the lid 61 is opened. The leading edge of the lid 61 that is opened pushes the door 41 forward. The door 41 is pivoted clockwise around the first hinge 42 and opened. The work W in the bucket 14 rolls out on the bottom wall 32 of the chute 22 through the discharge outlet 21 and is discharged.

  When the bucket 14 moves away from the chute 22, the overhanging portion 63 of the lid 61 loses support by the pushing member 43, and the lid 61 is closed. The support of the lid 61 is lost, and the door 41 is closed.

It is a side view of the workpiece delivery apparatus by this invention. It is a perspective view of the arm and bucket of the work delivery device.

Explanation of symbols

13 arm
14 bucket
53 Bucket sidewall
61 lid
64 Entrance W Work R Reception position P Delivery position

Claims (3)

  A workpiece dispensing device that cuts off a workpiece that is held on the spindle and conveys it to the dispensing position, and dispenses the workpiece from the dispensing position. The workpiece conveyance has a workpiece receiving port formed on the side wall facing the tip end surface of the workpiece. A bucket for opening and closing the bucket opening, a conveying means for conveying the bucket between a receiving position and a discharging position where the work receiving port is opposed to the tip end surface of the work, and a discharging position. Opening and closing means that opens and closes the lid so that the lid is closed otherwise, and the conveying means has the bucket centered on the spindle so that the bucket at the receiving position is fitted over the workpiece through the workpiece receiving port. A workpiece dispensing device equipped with a moving mechanism that moves in the linear direction so that the workpiece can be cut off while the bucket is put on the workpiece. .   The opening / closing means has a hinge connecting the lid to the opening edge of the bucket so that the lid closes the opening of the bucket by its own weight, and swinging of the swing arm so as to open the lid against the dead weight of the lid at the dispensing position. The workpiece dispensing apparatus according to claim 1, further comprising an opening member that pushes the lid by movement.   The payout opening is provided at the payout position, the door is provided at the payout opening so as to be closed by its own weight, and the door is opened by pushing the lid by the opening member. Work payout device.

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