JP2009248161A - Workpiece transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece transfer device designed to transfer workpieces to a workpiece machining device in sequence by means of a simple drive mechanism while preventing interference between the workpiece transfer device and the workpiece machining device. <P>SOLUTION: The invented workpiece transfer device comprises a workpiece holding plate 1, the drive mechanism 2 and a workpiece support pedestal 3. The workpiece holding plate 1 is equipped with a workpiece holding section 11 comprising a through-hole which follows the contour of the workpiece W. The drive mechanism 2 is provided with a plurality of workpiece holding plates 1 and is designed to circulate the workpiece holding plates 1 which intermittently move. The workpiece support pedestal 3 supports, from the bottom, the workpiece W held by the workpiece holding section 11 of the workpiece holding plate 1 provided along the transfer pathway of the workpiece holding plates 1 transferred by the driving mechanism 2. The workpiece W is subjected to a given machine in a state of being held in the workpiece holding section 11 of the workpiece holding plate 1 by the workpiece machining device A placed in the midst of the workpiece support pedestal 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a workpiece transfer device, and more particularly to a workpiece transfer device for sequentially transferring workpieces to a workpiece processing device in order to perform predetermined processing on the workpiece by the workpiece processing device.

  2. Description of the Related Art Conventionally, various workpiece transfer devices have been proposed for sequentially transferring workpieces to the workpiece machining device in order to perform predetermined machining on the workpiece by the workpiece machining device.

  By the way, in order to prevent interference between the workpiece transfer device and the workpiece processing device, the conventional workpiece transfer device normally repeats four operations of holding the workpiece, transferring the workpiece, releasing the workpiece, and returning the workpiece transfer device. For this reason, a complicated drive mechanism is required, which causes an increase in cost.

  In view of the problems of the conventional workpiece transfer device, the present invention can sequentially transfer workpieces to the workpiece processing device by a simple drive mechanism while preventing interference between the workpiece transfer device and the workpiece processing device. It is an object of the present invention to provide a workpiece transfer device that can be used.

  In order to achieve the above object, a workpiece transfer apparatus according to the present invention includes a workpiece holding plate having a workpiece holding portion formed of a through hole that follows the outer shape of the workpiece, a plurality of the workpiece holding plates, and the workpiece holding plate. A drive mechanism that is circulated while moving intermittently, and a work held by a work holding portion of the work holding plate that is disposed along the movement path of the work holding plate that is moved by the drive mechanism. The workpiece is supported by the workpiece support table, and the workpiece is placed in the workpiece support plate while the workpiece is held on the workpiece holding part of the workpiece holding plate. Features.

  In this case, the work processing device can be a press device, and forging can be performed by using dies located above and below the work holding plate.

  In addition, an opening with a lid for discharging the workpiece is formed at the end portion of the workpiece support base, and it is detected that the workpiece has reached the position of the opening, and the lid is driven to operate the workpiece. A lid operating mechanism for discharging the water can be provided.

  According to the workpiece transfer device of the present invention, a workpiece holding plate having a workpiece holding portion formed of a through hole that follows the outer shape of the workpiece, and a plurality of the workpiece holding plates are disposed, and the workpiece holding plate is moved intermittently. And a work support base for supporting the work held by the work holding part of the work holding plate from below, which is arranged along the movement path of the work holding plate moved by the drive mechanism. Since the workpiece is held in the workpiece holding portion of the workpiece holding plate by the workpiece processing device arranged in the middle of the workpiece support base, the workpiece is subjected to predetermined machining, While preventing the interference between the workpiece holding plate with the workpiece holder and the workpiece processing device, the simple processing mechanism allows the workpiece processing device to A work can be sequentially transferring it, it is possible to increase the production efficiency, it can be inexpensive the cost of the work transfer device.

  In addition, the work processing apparatus includes a press apparatus, and the work holding plate and the work processing apparatus including the work holding unit of the work transfer device are configured to perform forging by using molds positioned above and below the work holding plate. Forging can be performed while preventing interference.

  In addition, an opening with a lid for discharging the workpiece is formed at the end portion of the workpiece support base, and it is detected that the workpiece has reached the position of the opening, and the lid is driven to operate the workpiece. By providing the lid operating mechanism for discharging the workpiece, the workpiece can be discharged in an aligned state.

  Embodiments of a workpiece transfer apparatus according to the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the workpiece transfer device of the present invention.
The workpiece transfer device performs predetermined processing (forging in the present embodiment) on the workpiece W (connecting rod in the present embodiment) by the workpiece processing apparatus A (press device in the present embodiment). And a workpiece transfer device for sequentially transferring the workpiece W to the workpiece processing apparatus A, as shown in detail in FIG. The workpiece holding plate 1, a plurality of workpiece holding plates 1, a drive mechanism 2 that circulates while moving the workpiece holding plate 1 intermittently, and a workpiece holding plate 1 that is moved by the driving mechanism 2. And a work support 3 that supports the work W held by the work holding part 11 of the work holding plate 1 from below, The workpiece machining apparatus A which is disposed in the middle of the click support table 3, in a state where the work holder 11 of the work holding plate 1 holding the workpiece W, is obtained as performing predetermined processing on the workpiece W.

  By the way, in this embodiment, the work holding plate 1 is attached to a chain 21 that is circulated and driven by the drive mechanism 2 in units of two, and the movement path of the work holding plate 1 that is moved by the drive mechanism 2 The forward path (the movement path from the left side to the right side in FIG. 1) is such that the lower surface of the work holding plate 1 moves while being in sliding contact with the work support 3 to thereby move the work holding part 11 of the work holding plate 1. The held work W can be supported from below.

In addition, a workpiece supply mechanism S for sequentially supplying workpieces W to the workpiece holder 11 of the workpiece holding plate 1 can be provided at the starting end of the workpiece support 3 as necessary.
For the workpiece supply mechanism S, a robot or a supply device can be selectively used as appropriate.

Further, in the press apparatus as the workpiece processing apparatus A, a mold K composed of an upper mold K1 and a lower mold K2 as shown in detail in FIG. Forging is performed by K, and more specifically, warming (sizing) is performed to eliminate variation in thickness and distortion of the connecting rod after hot forging.
In this case, the work W held by the work holding part 11 of the work holding plate 1 is made by moving the lower surface of the work holding plate 1 while sliding in contact with the lower mold K2 disposed in the middle of the work support 3. Can be continuously supported from the work support 3 to the lower mold K2 and from the lower mold K2 to the work support 3 from below.
Then, as shown in detail in FIG. 3, the press device as the work processing apparatus A is driven while the work W held by the work holding portion 11 of the work holding plate 1 is supported from below by the lower mold K 2. The upper die K1 is lowered by the above-described method, and the workpiece W is subjected to predetermined processing by the die K composed of the upper die K1 and the lower die K2 in a state where the workpiece W is held on the workpiece holding portion 11 of the workpiece holding plate 1. To.

  Further, on the upstream side (upstream side) of the workpiece processing apparatus on the movement path of the workpiece holding plate 1, a scale removal composed of a brush, an air blow or the like for removing the scale adhering to the workpiece W as necessary. Means can be provided.

  Further, the chain 21 circulated by the drive mechanism 2 to which the work holding plate 1 is attached removes the scale attached to the work support 3 and the mold K between the work holding plates 1 as necessary. A scale removing means including a brush or the like can be provided.

Further, as shown in detail in FIG. 4, an opening 4 provided with a lid 41 for discharging the work W is formed at the terminal portion of the work support 3, and the work W is placed at the position of the opening 4. It is possible to provide a lid operating mechanism (not shown) that detects that it has been reached and drives the lid 41 to eject the workpiece.
As the lid operating mechanism, mechanical detection, operation mechanism, electrical detection, and operation mechanism can be selectively used as appropriate.
As a result, the workpieces W can be discharged through the discharge chute 5 in an aligned state.
The work W can be discharged by simply forming the opening 4 at the end of the work support 3 and discharging it through the discharge chute 5.

Since the workpiece transfer device has the above-described configuration, the following effects can be obtained.
(1) High production speed Since production is performed with one pitch feed, reciprocation of going and returning is unnecessary, and the workpiece W held by the workpiece holding portion 11 of the workpiece holding plate 1 is removed from the workpiece support 3. Since the lower mold K2 and the lower mold K2 are transferred from the lower mold K2 to the work support base 3 in the horizontal direction while being continuously supported from below, the molding stroke of the upper mold K1 of the mold K is Since it is sufficient that a clearance enough to load and unload the workpiece W between the mold K1 and the lower mold K2 is sufficient, the cycle time can be shortened (specifically, 4.8 sec / 1 pitch feed or less). .
Thus, since the molding stroke of the upper die K1 of the mold K is small, the overall height of the press device can be lowered in combination with the compact slide mechanism of the ram of the press device as the work processing device A.
(2) The manufacturing cost of the mold K can be reduced. The work W is held and positioned on the work holding part 11 of the work holding plate 1 and is predetermined by the mold K including the upper mold K1 and the lower mold K2. Therefore, positioning by the mold K (engraved complicated shape for positioning the mold K) is not necessary, and the shape of the mold K can be simplified. The manufacturing cost of the mold K can be reduced, and the scale remaining in the mold K can be easily removed.
(3) Suitable for scale removal and anti-scattering measures By disposing scale removal means such as a brush on a chain 21 that is circulated by a drive mechanism 2 that attaches a work holding plate 1, the work support base 3 and the mold K are provided. The attached scale can be removed. Compared with air blow, the scale removing means such as a brush is easy to collect dust without scattering of the scale, and has no noise, so it is excellent in terms of environment.
(4) A device for carrying out the workpiece W is not required. Since the workpiece W is carried out using gravity, a device (robot or carrying-out device) for carrying out the workpiece W is not required, and the equipment cost is low. Can be.

  As mentioned above, although the workpiece transfer apparatus of the present invention has been described on the basis of the embodiments thereof, the present invention is not limited to the configurations described in the above embodiments, and the configuration is appropriately changed without departing from the spirit thereof. Is something that can be done.

  The workpiece transfer device of the present invention has a characteristic that workpieces can be sequentially transferred to the workpiece machining device by a simple drive mechanism while preventing interference between the workpiece transfer device and the workpiece machining device. In addition to being suitable for use in transferring connecting rods for forging the connecting rods with a press device, in addition to applying workpieces to workpieces with workpiece processing devices, Can be widely used for various work transfer devices for sequentially transferring the workpieces.

It is a front view which shows one Example of the workpiece transfer apparatus of this invention. It is the same top view. It is side surface sectional drawing in the position of a workpiece processing apparatus. It is side surface sectional drawing in the position of an opening part and a discharge chute. The work holding plate and the work are shown, (a) is a plan view and (b) is a side view. The metal mold | die is shown, (a) is a front view, (b) is a side view, (c) is a top view of an upper mold | type, (d) is a top view of a lower mold | type.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work holding plate 11 Work holding part 2 Drive mechanism 21 Chain 3 Work support stand 4 Opening part 41 Cover body 5 Discharge chute A Work processing apparatus (press apparatus)
K Die K1 Upper mold K2 Lower mold S Work supply mechanism W Workpiece (connecting rod)

Claims (3)

  A workpiece holding plate provided with a workpiece holding portion made of a through hole that follows the outer shape of the workpiece, a plurality of workpiece holding plates, and a drive mechanism that circulates while moving the workpiece holding plate intermittently; The workpiece holding plate is arranged along the movement path of the workpiece holding plate moved by the driving mechanism and supports the workpiece held by the workpiece holding portion of the workpiece holding plate from below. A workpiece transfer device characterized in that a predetermined processing is performed on a workpiece in a state where the workpiece is held in a workpiece holding portion of a workpiece holding plate by the arranged workpiece machining device.   2. The workpiece transfer device according to claim 1, wherein the workpiece processing device comprises a press device, and forging is performed by means of dies positioned above and below the workpiece holding plate.   An opening with a lid for discharging the workpiece is formed at the end of the workpiece support base, and when the workpiece has reached the position of the opening, the lid is driven to discharge the workpiece. 3. A workpiece transfer apparatus according to claim 1, further comprising a lid operating mechanism for performing the operation.

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