JP2008036681A - Workpiece feeding device and treating apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece feeding device and a treating apparatus which enable the frequency of maintenance thereof to reduced and have more improved throughput. <P>SOLUTION: The workpiece feeding device 3 is configured to intermittently feed a workpiece W to a treating part 2 where the holding and treatment of a hoop-like or a short-sized workpiece W are intermittently performed. The workpiece feeding device is provided with: a first roller 31 for receiving the workpiece W; second roller 32 which is arranged in opposition to the first roller 31 and sandwiches the workpiece between itself and the first roller 31; a roller driving device 33 for rotationally driving the first roller 31 intermittently; a roller retreating device 41 for retreating the second roller 32 in the direction in which the second roller is separated from the workpiece W; and an interlocking device 42 which causes the roller retreating device 41 to perform roller retreating action while being operatively connected with the start of the action for holding the workpiece W by the treating part 2 and also causes the roller retreating device 41 to complete the roller retracting action while being operatively connected with the completion of the action for holding the workpiece W by the treating part 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a workpiece supply apparatus that supplies a hoop-shaped or short-shaped workpiece having a plurality of components or component intermediates to various processing units, and a processing apparatus using the workpiece supply device.

As a workpiece supply device, for example, a component supply device described in Patent Document 1 described below is known.
The component supply apparatus described in Patent Document 1 includes a feed hook provided with a feed claw, a block, and a cam follower receiver provided for conveying a hoop-like or short-sized base material (workpiece) in one direction, and one end thereof. A plurality of sliding pins that abut one end of the block, the other end abuts the surface of the cam that rotates by the motor and moves the feed rod up and down, one end engages with the cam follower receiver, and the other end is formed outside the cam. And a feeding device including a lever that engages with one of the grooves and reciprocates the feeding rod in the left-right direction. Moreover, the component supply apparatus described in Patent Document 1 includes a removing device (processing device) for removing a component from a workpiece.

In the component supply apparatus described in Patent Document 1, a workpiece is held by a feed claw provided on a feed rod, and the workpiece is fed by moving the feed rod in the workpiece conveyance direction in this state. . In addition, the component supply device described in Patent Document 1 moves the feed rod in the direction opposite to the workpiece conveyance direction after releasing the holding of the workpiece by the feed claws, and thereafter repeats the above operation, Intermittent delivery is realized.
Specific examples of components extracted by the extraction device in the component supply apparatus described in Patent Document 1 include parts for watches, parts for cameras, parts for portable devices such as mobile phones, and the like. Is made of a material having high strength even though it is thin, such as metal or resin.

Japanese Utility Model Publication No. 2-27943

Here, in general, in a processing apparatus, processing on a workpiece is performed with the workpiece positioned. As a configuration for positioning the workpiece, the workpiece is provided with a plurality of positioning holes along the feed direction. On the other hand, the processing apparatus is provided with a positioning pin that engages with a positioning hole of the workpiece, and the positioning of the workpiece is performed by engaging the positioning pin with the positioning hole of the workpiece.
In general, in a workpiece supply apparatus, a workpiece is held using a positioning hole provided in the workpiece. For example, in a workpiece supply device that holds a workpiece using a feed claw as in the component supply device described in Patent Document 1, by engaging the feed claw with a positioning hole located outside the processing device in the workpiece, Work is held.

However, the positions and sizes of the positioning holes vary due to processing errors. For this reason, when the feed claw and the processing device are configured to hold the workpiece at the same time, the feed claw and the processing device may pull or press the workpiece.
If this happens repeatedly, wear occurs in the feed claws and the work holding part of the processing apparatus, and the work cannot be positioned with high accuracy, so that the worn parts must be replaced.
For this reason, in a workpiece | work supply apparatus, the structure which extracts a feed nail | claw from the positioning hole of a workpiece | work at the timing which a processing apparatus hold | maintains a workpiece | work may be employ | adopted. However, since it is difficult to adjust the extraction timing of the feed claw, wear of the feed claw and the work holding part cannot be completely avoided.
Further, when processing a workpiece having a different positioning hole shape, it has been necessary to replace the feeding claw with an appropriate shape according to the positioning hole shape.
Moreover, in the component supply apparatus described in Patent Document 1, during the workpiece feeding operation, the feeding rod is swung to release the engagement between the feeding claw and the workpiece, and the feeding rod is opposite to the workpiece conveying direction. It is necessary to move in the direction and return the feed rod to the initial position of the workpiece transfer operation. As described above, in the component supply apparatus described in Patent Document 1, since the workpiece feeding operation is complicated, it is difficult to shorten the time required for one feeding operation, and the throughput has an upper limit.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a work supply device and a processing device that can reduce the frequency of maintenance and can further improve throughput. To do.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a workpiece supply device that intermittently feeds a workpiece to a processing section that intermittently holds and processes a hoop-shaped or short workpiece, and includes a first roller that receives the workpiece. A second roller disposed opposite to the first roller and sandwiching the workpiece between the first roller and at least one of the first roller and the second roller intermittently. A roller driving device for rotationally driving; a roller retracting device for retracting at least one of the first roller and the second roller in a direction away from the workpiece; and the processing in the roller retracting device. The roller retracting operation is performed in conjunction with the start of the workpiece holding operation by the unit, and the roller retracting operation is performed in conjunction with the end of the workpiece holding operation by the processing unit. It provides a work supply device and a linkage to terminate the operation.

In the workpiece supply apparatus configured as described above, the workpiece is held by being sandwiched between the first roller and the second roller. In addition, by holding at least one of the first roller and the second roller away from the workpiece by the roller retracting device, the holding of the workpiece in the workpiece supply device is released.
In this workpiece supply device, at least one of the first roller and the second roller is intermittently moved by the roller driving device in a state where the workpiece is sandwiched between the first roller and the second roller. By being rotationally driven, the workpiece is intermittently fed into the processing unit.

In this work supply device, the operation of the roller retracting device is controlled by the interlocking device. Specifically, when the workpiece holding operation is started by the processing unit, the roller retracting operation is performed by the roller retracting device in conjunction with the start of the holding operation.
When the work holding operation by the processing unit is completed, the roller retracting operation by the roller retracting device is completed in conjunction with the end of the holding operation.
That is, when this work supply device is used for supplying a work to the processing unit, the work is always held by only one of the processing unit and the work supply device. Accordingly, the workpiece is not pulled or pressed by the workpiece supply device and the processing unit, and parts are hardly consumed in the workpiece supply device or the processing unit.
Note that when the roller is retracted, the roller may be retracted until the holding force of the workpiece by the roller is large enough not to interfere with the holding of the workpiece by the processing unit. That is, the retracted amount of the roller may be very small, and in some cases, the roller may be in contact with the workpiece. For this reason, since the roller retracting operation and the retracting operation can be canceled in a very short time, the operation cycle can be easily accelerated and the throughput can be improved.

Moreover, in this workpiece | work supply apparatus, a workpiece | work is hold | maintained by pinching | interposing a workpiece | work by the 1st roller and the 2nd roller as mentioned above. That is, in this workpiece supply apparatus, the workpiece is held without using the positioning hole. For this reason, special adjustments such as component replacement are not required even when processing a workpiece having a different positioning hole shape.
Further, in this work supply device, the work is fed out by intermittently driving the first roller and the second roller. That is, in this workpiece supply apparatus, the operation of the workpiece feeding mechanism is simple, so that the operation cycle can be easily accelerated and the throughput can be improved.

Here, the contact part with the said workpiece | work of at least any one of said 1st roller and said 2nd roller may be comprised with the elastic body.
In this case, at least one of the first roller and the second roller is in elastic contact with the workpiece, and the contact area and contact pressure between the roller and the workpiece increase. The work is less likely to slip with respect to this roller.
For this reason, since the difference between the rotation amount of the roller and the actual feed amount of the workpiece is less likely to occur, the feed amount of the workpiece to the processing unit can be controlled with higher accuracy, and the workpiece positioning process in the processing unit can be performed. The required burden can be reduced.

In addition, an abrasion resistant material may be provided on the surface of the contact portion of at least one of the first roller and the second roller with the workpiece.
In this case, since at least one of the first roller and the second roller is protected by the wear-resistant material at the contact portion with the workpiece, the roller is worn even if it is used for a long time. It is difficult and the maintenance frequency can be reduced.
Here, as the wear-resistant material, when fine particles having corners such as diamond grains and cBN (cubic boron nitride sintered body) are scattered on the roller surface, the corners of the fine particles are caught on the work surface. Increases the holding power of the workpiece. For this reason, the difference between the rotation amount of the roller and the actual feed amount of the work is less likely to occur, and the work can be supplied to the processing unit with higher accuracy.

  The present invention is also a processing apparatus that intermittently holds and processes a hoop-shaped or short-shaped workpiece, a processing section that performs processing on the workpiece, and a workpiece that intermittently feeds the workpiece into the processing section. The processing unit includes a processing unit side holding device that holds the workpiece during the processing operation of the workpiece, and the workpiece supply device is the workpiece supply device according to the present invention. Providing equipment.

In the processing apparatus configured as described above, when the workpiece holding operation is started by the processing unit side holding device provided in the processing unit, the roller by the roller retracting device of the workpiece supply device is interlocked with the start of the holding operation. The evacuation operation is performed.
When the workpiece holding operation by the processing unit side holding device ends, the roller retracting operation by the roller retracting device ends in conjunction with the end of the holding operation.
That is, in this processing apparatus, the work is always held by only one of the processing unit and the work supply apparatus. Accordingly, the workpiece is not pulled or pressed by the workpiece supply device and the processing unit side holding device, and parts are hardly consumed in the workpiece supply device and the processing unit side holding device.

In this processing apparatus, as described above, the work is held by the work being sandwiched between the first roller and the second roller of the work supply device. That is, in this processing apparatus, the workpiece is held by the workpiece supply device without using the positioning hole. For this reason, special adjustments such as component replacement are not required even when processing a workpiece having a different positioning hole shape.
In this processing apparatus, the work is fed by intermittently rotating the first roller and the second roller. That is, in this processing apparatus, since the operation of the workpiece feeding mechanism is simple, it is possible to easily speed up the operation cycle and improve the throughput.

  Further, the present invention is a work supply method for intermittently feeding a work to a processing unit that intermittently holds and processes a hoop-shaped or short-shaped work, the first roller and the first roller The workpiece is sandwiched and held between the second roller and the second roller disposed opposite to each other, and at least one of the first roller and the second roller is intermittently driven to rotate. Is sent toward the processing unit, and at least one of the first roller and the second roller is separated from the workpiece in conjunction with the start of the holding operation of the workpiece by the processing unit. And a workpiece supply method for ending the roller retracting operation in conjunction with the end of the workpiece holding operation by the processing unit. To.

In this work supply method, the work is held by being sandwiched between the first roller and the second roller. Further, by retracting at least one of the first roller and the second roller in a direction away from the workpiece, the holding of the workpiece by the apparatus used for supplying the workpiece is released.
In this work supply method, at least one of the first roller and the second roller is intermittently driven to rotate while the work is sandwiched between the first roller and the second roller. Thus, the work is intermittently sent to the processing unit.

In this work supply method, when the work holding operation by the processing unit is started, the roller retracting operation is performed in conjunction with the start of the holding operation.
When the workpiece holding operation by the processing unit is completed, the roller retracting operation by the roller retracting device is terminated in conjunction with the end of the holding operation.
That is, when the workpiece is supplied to the processing unit using this workpiece supply method, the workpiece is always held by only one of the processing unit and the apparatus used for supplying the workpiece. This prevents the workpiece from being pulled or pressed by the device used for supplying the workpiece and the processing unit, so that parts are hardly consumed in the device used for supplying the workpiece or the processing unit.
Note that when the roller is retracted, the roller may be retracted until the holding force of the workpiece by the roller is large enough not to interfere with the holding of the workpiece by the processing unit. That is, the retracted amount of the roller may be very small, and in some cases, the roller may be in contact with the workpiece. For this reason, since the roller retracting operation and the retracting operation can be canceled in a very short time, the operation cycle can be easily accelerated and the throughput can be improved.

Further, in this work supply method, as described above, the work is held by sandwiching the work between the first roller and the second roller. That is, in this work supply method, the work is held without using the positioning hole. For this reason, even when processing a workpiece having different positioning hole shapes, special adjustment such as component replacement is not required in the apparatus used for supplying the workpiece.
In this work supply method, the work is fed by intermittently driving the first roller and the second roller. That is, in this workpiece supply method, the operation of the workpiece feeding mechanism is simple, so that the operation cycle can be easily accelerated and the throughput can be improved.

  According to the workpiece supply apparatus and the processing apparatus using the same according to the present invention, it is possible to reduce the frequency of maintenance and further improve the throughput.

Hereinafter, an embodiment of a processing apparatus according to the present invention will be described with reference to the drawings.
Here, in the present embodiment, the present invention is applied to a processing apparatus in which a processing object is taken out from a hoop-shaped or short-shaped work provided with a plurality of parts or parts intermediates and is transferred to a pick-and-place apparatus. An example will be described. Hereinafter, parts or intermediate parts are collectively referred to as “processing objects”.
In the present embodiment, the object to be processed is a small metal part used in a movement for an analog wristwatch.

  FIG. 1 is a perspective view showing the overall structure of a processing apparatus according to an embodiment of the present invention. FIG. 2A is a longitudinal sectional view schematically showing the mechanism of the main part of the processing apparatus main body and the state at the start of the workpiece feeding operation in the processing apparatus shown in FIG. FIG. 2B is a cross-sectional view taken along the line α-α in FIG. FIG. 3A is a longitudinal cross-sectional view schematically showing a state in which a predetermined amount of work has been fed after the mechanism of the main part of the processing apparatus and the work feeding operation in the processing apparatus shown in FIG. 1 are started. FIG. 3B is a cross-sectional view taken along the line β-β in FIG. FIG. 4A is a longitudinal cross-sectional view schematically showing a state in which the main part of the processing apparatus main body and the work are held by the processing unit in the processing apparatus shown in FIG. FIG. 4B is a cross-sectional view taken along the line γ-γ in FIG. FIG. 5A is a vertical cross-sectional view schematically showing a state in which the workpiece is processed by the mechanism and the processing unit of the main part of the processing apparatus main body in the processing apparatus shown in FIG. FIG. 5B is a cross-sectional view taken along the line Δ-Δ in FIG. FIG. 6 is a left side view showing a schematic internal structure of the processing apparatus shown in FIG. FIG. 7 is a right side view of the processing apparatus shown in FIG. 1 and is a view for explaining a component supply apparatus in the processing apparatus. FIG. 8 is a partially enlarged cross-sectional view showing the internal structure by enlarging the region surrounded by the two-dot chain line in FIG. 7, and is a view for explaining the relationship between the component supply device and the processing device main body in the processing device.

As illustrated in FIG. 1, the processing apparatus 1 includes a processing unit 2 and a work supply device 3 that supplies a work W to the processing unit 2. Further, the processing apparatus 1 includes a driving device 4 that drives the processing unit 2 and the workpiece supply device 3.
The processing unit 2, the workpiece supply device 3, and the drive device 4 are provided in the same casing C. In the present embodiment, an electric motor is used as the driving device 4. The electric motor is attached to the outside of the housing C in order to be easily detachable and to have sufficient cooling performance. The rotational power of the electric motor is transmitted to a first driving force transmission mechanism 25 described later using a bevel gear.

As illustrated in FIGS. 2 and 3, the processing unit 2 includes a removing device 11 that extracts a processing target from the workpiece W, and a processing unit side holding device 12 that holds the workpiece W during the processing operation of the workpiece W. ing. In the present embodiment, the processing operation of the workpiece W is an operation of taking out the processing object by the punching device 11.
Here, a plurality of processing objects (not shown) are provided at equal intervals along the longitudinal direction of the workpiece W. In addition, positioning holes corresponding to the objects to be processed are formed at equal intervals along the longitudinal direction at both ends of the workpiece W in the width direction. Here, the longitudinal direction of the workpiece W is a feeding direction by the workpiece feeding device 3, and the width direction of the workpiece W is both ends in a direction orthogonal to the feeding direction by the workpiece feeding device 3.

  The punching device 11 includes an upper die 21 that is installed above the workpiece W conveyance path, a movable base 22 that is disposed below the upper die 21 with the workpiece W conveyance path interposed therebetween, and an upper surface of the movable base 22. , A punch 23 provided at a position facing the conveyance path of the object to be processed on the workpiece W, and an elevating mechanism 24 for elevating the movable base 22.

  In the punching device 11, as shown in FIG. 4, the workpiece 22 provided on the workpiece W is pushed up by the punch 23 provided on the movable pedestal 22 by raising the movable pedestal 22 by the lifting mechanism 24. It is like that. The upper die 21 is provided with a punch hole 21 a at a position facing the punch 23. Thus, when the processing object is pushed up by the punch 23, the processing object is further pushed up in a state where the workpiece W is received on the lower surface of the upper mold 21, and as shown in FIG. Is extracted from the workpiece W and is pushed out above the upper mold 21 through the hole 21a of the upper mold 21. In the processing apparatus 1, the processing object pushed out above the upper mold 21 is delivered to a pick and place apparatus (not shown).

In the present embodiment, as shown in FIGS. 2 and 6, the elevating mechanism 24 is provided in the casing C so as to be movable in the vertical direction, and the elevating rod 24a to which the movable base 22 is attached at the upper end, and the driving device. And a first driving force transmission mechanism 25 that lifts and lowers the lifting rod 24a using the driving force 4.
As shown in FIG. 6, the first drive force transmission mechanism 25 converts the rotation of the drive shaft of the electric motor that constitutes the drive device 4 into a reciprocating linear motion, and moves the lifting rod 24 a in conjunction with the rotation of the drive shaft. It is comprised by the link mechanism to raise / lower.

Specifically, as shown in FIG. 6, the first driving force transmission mechanism 25 is a disk-shaped first link plate 25a that is rotationally driven around the axis by the driving device 4, and the rotation of the first link plate 25a. A long plate-like second link plate 25b provided on a surface parallel to the surface, and a substantially L-shaped third link plate 25c provided on a surface parallel to the rotation surface of the first link plate 25a. Have.
The second link plate 25b is connected so that one end can swing with respect to the eccentric position of the first link plate 25a and the other end can swing with respect to one end of the third link plate 25c. ing.
The third link plate 25c is swingably provided with a bent portion (center portion) as a fulcrum, and the other end is swingably connected to the lifting rod 24a.
Accordingly, when the first link plate 25a is rotationally driven by the driving device 4, this rotation is transmitted to the lifting rod 24a by the second link plate 25b and the third link plate 25c, and the lifting rod 24a is moved in the vertical direction. It is designed to reciprocate linearly.

As shown in FIG. 2, the processing unit side holding device 12 is opposed to both ends of the strip W in the width direction of the workpiece W in a plate-like stripper 27 placed on the upper surface of the movable base 22 via a spring 26. And positioning pins 28 provided at the respective positions.
Thus, when the processing unit side holding device 12 raises the movable base 22 by the elevating mechanism 24, the positioning pin 28 is engaged with the positioning hole of the workpiece W before the punch 23 comes into contact with the object to be processed. At the same time, the workpiece W is positioned. Subsequently, the stripper 27 comes into contact with the workpiece W, presses and holds the workpiece W against the upper mold 21, and then the punch 23 comes into contact with the processing object, and the processing object is extracted. .

As shown in FIG. 7, the drive system of the workpiece supply device 3 is provided on the right side surface of the workpiece processing device 1. As shown in FIG. 8, the workpiece supply device 3 is disposed between the first roller 31 that receives the workpiece W and the first roller 31 that is opposed to the first roller 31 across the conveyance path of the workpiece W. And a second roller 32 that sandwiches the workpiece W. The workpiece supply device 3 includes a roller driving device 33 that intermittently rotationally drives at least one of the first roller 31 and the second roller 32.
In the present embodiment, the first roller 31 is disposed above the workpiece W conveyance path, and the second roller 32 is disposed below the workpiece W conveyance path. Note that the first roller 31 and the second roller 32 are configured to receive only a region (for example, an edge portion) in which the object to be processed is not provided in the width direction of the workpiece W (a direction orthogonal to the conveyance direction). .

Here, the contact part with the workpiece | work W of at least any one of the 1st roller 31 and the 2nd roller 32 may be comprised with the elastic body.
In the present embodiment, the first roller 31 and the second roller 32 are rubber rollers in which at least a contact portion with the work W is made of rubber.

Further, an abrasion resistant material may be provided on the surface of the contact portion of at least one of the first roller 31 and the second roller 32 with the workpiece W.
Here, for the wear resistant material, for example, a hard layer such as a metal is formed on the surface of the roller by any film forming technique such as CVD (chemical vapor deposition), PVD (physical vapor deposition), or thermal spraying, You may utilize this hard layer as an abrasion-resistant material. Alternatively, the hard fine particles may be scattered on the surface of the roller by any method such as electrodeposition, or mixed into the material constituting the roller, and the hard fine particles may be used as an abrasion resistant material.
In addition, when using hard microparticles | fine-particles as an abrasion-resistant material, it is preferable to use the microparticles | fine-particles which have a corner | angular part, such as a diamond grain and cBN (cubic boron nitride sintered compact).
In the present embodiment, diamond particles are fixed to the surfaces of the contact portions of the first roller 31 and the second roller 32 with the workpiece W by electrodeposition or the like.

As shown in FIGS. 7 and 8, the roller drive device 33 includes a rack 34 that is reciprocated linearly by the drive device 4, and a pinion gear 35 that is reciprocally rotated by the rack 34. The rack 34 is adapted to reciprocate linearly when the power of the driving device 4 is transmitted through the second power transmission mechanism 36 shown in FIG.
As shown in FIG. 7, a pulley 38 is coaxially attached to the pinion gear 35 via a shaft 37.
The pulley 38 is attached to the shaft 37 via a one-way clutch (not shown). As a result, the pinion gear 35 rotates with the pinion gear 35 only when the pinion gear 35 rotates in one direction, and stops when the pinion gear 35 rotates in the reverse direction without rotating.
A pulley 31b is coaxially attached to the first roller 31 via a shaft 31a. An endless drive belt 39 is wound around the pulley 31b and the pulley 38. Accordingly, the rotation of the pulley 38 is transmitted to the first roller 31 via the pulley 31b and the shaft 31a, and the first roller 31 is rotationally driven only in one direction (work feeding direction).

Here, as shown in FIG. 6, the second drive force transmission mechanism 36 converts the rotation of the drive shaft of the electric motor constituting the drive device 4 into a reciprocating linear motion, and moves the rack in conjunction with the rotation of the drive shaft. It is comprised by the link mechanism which makes 34 reciprocate linearly.
Specifically, the second driving force transmission mechanism 36 includes a long plate-like fourth link plate 36a provided on a surface parallel to the rotational surface of the first link plate 25a of the first driving force transmission mechanism 25; And a fifth link plate 36b having a substantially L shape provided on a surface parallel to the rotation surface of the first link plate 25a.

The fourth link plate 36a is connected so that one end can swing with respect to the eccentric position of the first link plate 25a and the other end can swing with respect to one end of the fifth link plate 36b. ing.
The fifth link plate 36b is provided so as to be swingable with a bent portion (center portion) as a fulcrum, and the other end is connected to the rack 34 so as to be swingable.
Thus, when the first link plate 25a is rotationally driven by the drive device 4, this rotation is transmitted to the rack 34 by the fourth link plate 36a and the fifth link plate 36b, so that the rack 34 reciprocates linearly. It has become.

In addition, the workpiece supply device 3 includes a roller retracting device 41 that retracts at least one of the first roller 31 and the second roller 32 in a direction away from the workpiece W. Further, the work supply device 3 causes the roller retracting device 41 to perform the roller retracting operation in conjunction with the start of the holding operation of the work W by the processing device 2, and in conjunction with the end of the holding operation of the work W by the processing device 2. Thus, the interlocking device 42 for ending the roller retracting operation is provided.
In the present embodiment, the roller retracting device 41 is provided so as to be displaceable in the vertical direction with respect to the casing C, and supports the second roller 32 so as to be rotatable, and the roller supporting member 46 upward. An urging member 47 for urging the roller support member 46 and a pressing mechanism 48 for pushing down the roller support member 46.

As the urging member 47, for example, a coil spring or the like is used.
The pressing mechanism 48 is configured by a link mechanism that transmits the operation of the lifting rod 24 a to the roller support member 46. That is, the pressing mechanism 48 constitutes the interlocking device 42.
Specifically, the push-down mechanism 48 is fixed to the lifting rod 24a and is moved up and down together with the lifting rod 24a, and a long plate-like sixth link plate to which the lifting operation of the stay rod 48a is transmitted. 48b.
The sixth link plate 48b is provided so as to be able to swing with an intermediate portion in the longitudinal direction as a fulcrum, and has one end connected to the stay rod 48a so as to be swingable. Thus, the other end of the sixth link plate 48b is swung downward when the lifting rod 24a is raised, and is swung upward when the lifting rod 24a is lowered. It has become.

  Here, the roller support member 46 is provided with a receiving portion 46a that protrudes on the swinging track of the other end of the sixth link plate 48b. Thereby, only when the elevating rod 24a is raised to a certain reference position or higher, the other end of the sixth link plate 48b comes into contact with the receiving portion 46a from above.

Specifically, when the elevating rod 24a is moved up to a position where the tip of the positioning pin 28 of the processing unit side holding device 12 moved up and down by the elevating rod 24a reaches the conveying path of the workpiece W, the receiving unit 46a The other end of the sixth link plate 48b comes into contact. Here, the position at which the tip of the positioning pin 28 reaches the workpiece W conveyance path is the position of the lifting rod 24a when the positioning of the workpiece W by the positioning pin 28 is started. Hereinafter, this position is set as a reference position.
Further, when the elevating rod 24a is raised above the reference position, the sixth link plate 48b pushes down the receiving portion 46a to move the roller support member 46 downward.
And in the state where the raising / lowering rod 24a is located below the reference position, the depression of the receiving portion 46a by the sixth link plate 48b is released. Accordingly, the roller support member 46 is lifted by the urging force of the urging member 47, and the work W is sandwiched and held between the second roller 32 and the first roller 31.

In the present embodiment, the receiving portion 46a protrudes on the swinging track of the sixth link plate 48b and engages with a base portion 46b having a screw hole substantially perpendicular to the upper surface and a screw hole of the base portion 46b. And a nut 46c for receiving the sixth link plate 48b at the head.
Accordingly, the position where the sixth link plate 48b and the nut 46c abut can be adjusted by operating the nut 46c to adjust the distance from the base 46b to the head of the nut 46c. Thus, by adjusting the position where the sixth link plate 48b and the nut 46c abut, it is possible to adjust the timing at which the roller support member 46 starts to descend in the ascending process of the elevating rod 24a. Yes.

In the processing apparatus 1 configured as described above, as illustrated in FIGS. 2 and 3, the workpiece W is held by being sandwiched between the first roller 31 and the second roller 32 of the workpiece supply apparatus 3. . Further, as shown in FIGS. 4 and 5, the holding of the workpiece W in the workpiece supply device 3 is released by retracting the second roller 32 away from the workpiece W by the roller retracting device 41.
In the work supply device 3, the first roller 31 is intermittently rotationally driven by the roller drive device 33 with the work W sandwiched between the first roller 31 and the second roller 32 as shown in FIG. 2. By doing so, as shown in FIG. 3, the workpiece W is intermittently sent to the processing apparatus.

When the holding operation of the workpiece W by the processing unit side holding device 12 is started, the second roller 32 is retracted by the roller retracting device 41 in conjunction with the start of the holding operation as shown in FIG. Is called.
Further, when the holding operation of the workpiece W by the processing unit side holding device 12 is completed, the retracting operation of the second roller 32 by the roller retracting device 41 is finished in conjunction with the end of the holding operation.
That is, in the processing apparatus 1, the workpiece W is always held by only one of the processing unit side holding device 12 and the workpiece supply device 3. Thereby, the workpiece W is not pulled or pressed by the workpiece supply device 3 and the processing unit 2, and parts are hardly consumed in the workpiece supply device 3 and the processing unit 2.
When the second roller 32 is retracted, the holding force of the workpiece W by the first roller 31 and the second roller 32 is large enough not to interfere with the holding of the workpiece W by the processing unit side holding device 12. The second roller 32 may be retreated. That is, the retraction amount of the second roller 32 may be very small, and the second roller 32 may be in contact with the work depending on the case. For this reason, since the retracting operation of the second roller 32 and the canceling of the retracting operation can be performed in a very short time, the operation cycle can be easily accelerated and the throughput can be improved.

Moreover, in this processing apparatus 1, the workpiece | work W is hold | maintained because the workpiece | work W is pinched | interposed by the 1st roller 31 and the 2nd roller 32 as mentioned above. That is, the processing apparatus 1 holds the workpiece W without using the positioning hole. For this reason, when processing the workpiece | work W from which the shape of a positioning hole differs, special adjustments, such as component replacement, are unnecessary.
Further, in the processing apparatus 1, the work W is sent out by intermittently driving the first roller 31. That is, in this processing apparatus 1, since the operation of the workpiece W feeding mechanism is simple, it is possible to easily speed up the operation cycle and improve the throughput.

Here, in this embodiment, the contact part with the workpiece | work W of the 1st roller 31 and the 2nd roller 32 is comprised by the elastic body as mentioned above. As a result, these rollers elastically contact the workpiece W, and the contact area and the contact pressure between the rollers and the workpiece W increase, so that the workpiece W is less likely to slip with respect to these rollers.
For this reason, since the difference between the rotation amount of these rollers and the actual feed amount of the workpiece W is less likely to occur, the feed amount of the workpiece W to the processing unit 2 can be controlled with higher accuracy. The burden required for the positioning process of the workpiece W can be reduced.

In the present embodiment, wear-resistant materials are provided on the surfaces of the first roller 31 and the second roller 32 that are in contact with the workpiece W. Thereby, since the contact part with the workpiece | work W is protected by the wear-resistant material, the first roller 31 and the second roller 32 are less likely to be worn even when used for a long time, and the maintenance frequency can be reduced.
In this embodiment, diamond particles are scattered on the surface of each roller as a wear-resistant material. Since the fine particles having corners are scattered on the roller surface, the corners of the fine particles are caught on the surface of the work W, so that the holding power of the work W by each roller is increased. For this reason, the difference between the rotation amount of each roller and the actual feed amount of the workpiece W is less likely to occur, and the workpiece W can be supplied to the processing unit 2 with higher accuracy.

Here, in the above-described embodiment, the example in which the processing object is taken out from the short workpiece and transferred to the pick and place apparatus has been described. However, the present invention is not limited to this configuration. Absent. For example, in the present invention, a hoop-like material is supplied to the processing unit 2 by the work supply device 3, and a part is manufactured by punching out by the processing unit 2, or a film substrate is processed by the work supply device 3. And the processing unit 2 may be applied to a configuration in which an IC chip or the like is fixed with high accuracy.
The present invention also provides a configuration in which a film substrate is supplied to the processing unit 2 by the work supply device 3 and some printing is performed on the film substrate by the processing unit 2, or a hoop in which a plurality of parts are fixed by the work supply device 3. A configuration may be adopted in which a material is supplied to the processing unit 2 and each of the parts fixed to the hoop material in the processing unit 2 is inspected and measured.

It is a perspective view which shows the processing apparatus which concerns on one Embodiment of this invention. (A) is the longitudinal cross-sectional view which shows typically the mode of the main part of the processing apparatus main body in the processing apparatus shown in FIG. 1, and the mode at the time of a workpiece | work feeding operation start, (b) is (alpha)-(alpha) of (a). It is arrow sectional drawing. (A) is a longitudinal cross-sectional view schematically showing a state in which a predetermined amount of work has been fed out after starting the mechanism and main part feeding mechanism of the processing apparatus main body in the processing apparatus shown in FIG. ) Is a cross-sectional view taken along the line β-β in FIG. (A) is the longitudinal cross-sectional view which shows typically the state with which the mechanism of the processing apparatus main body in the processing apparatus shown in FIG. 1 and the workpiece | work are hold | maintained by the processing part, (b) is (a). FIG. (A) is the longitudinal cross-sectional view which shows typically the state by which the process of the workpiece | work was performed by the mechanism and process part of the main part of the processing apparatus main body in the processing apparatus shown in FIG. 1, (b) is (a). It is (triangle | delta) -delta arrow sectional drawing. It is a left view which shows the schematic internal structure of the processing apparatus shown in FIG. It is a right view of the processing apparatus shown in FIG. 1, and is a figure for demonstrating the components supply apparatus in a processing apparatus. FIG. 8 is a partially enlarged cross-sectional view showing an internal structure by enlarging a region surrounded by a two-dot difference line in FIG.

Explanation of symbols

W Work 1 Processing device 2 Processing unit 3 Work supply device 12 Processing unit side holding device 31 First roller 32 Second roller 33 Roller driving device 41 Roller retracting device 42 Interlocking device

Claims (5)

A workpiece supply device that intermittently feeds the workpiece to a processing section that intermittently holds and processes a hoop-shaped or short workpiece,
A first roller for receiving the workpiece;
A second roller disposed opposite to the first roller and sandwiching the workpiece between the first roller;
A roller driving device that intermittently rotationally drives at least one of the first roller and the second roller;
A roller retracting device for retracting at least one of the first roller and the second roller in a direction away from the workpiece;
The roller retracting device causes the roller retracting operation to be performed in conjunction with the start of the workpiece holding operation by the processing unit, and the roller retracting operation is terminated in conjunction with the end of the workpiece holding operation by the processing unit. A work supply device having an interlocking device.   The workpiece supply apparatus according to claim 1, wherein a contact portion of at least one of the first roller and the second roller with the workpiece is configured by an elastic body.   The workpiece supply apparatus according to claim 1, wherein a wear-resistant material is provided on a surface of a contact portion of at least one of the first roller and the second roller with the workpiece. A processing apparatus for intermittently holding and processing a hoop-shaped or short-shaped workpiece,
A processing unit for processing the workpiece;
A workpiece supply device that intermittently feeds the workpiece to the processing unit;
The processing unit includes a processing unit side holding device that holds the workpiece during the processing operation of the workpiece,
The processing apparatus which is the workpiece supply apparatus of any one of Claims 1-3 in which the said workpiece supply apparatus is. A workpiece supply method for intermittently feeding the workpiece to a processing unit that intermittently holds and processes a hoop-shaped or short-shaped workpiece,
The workpiece is sandwiched and held between a first roller and a second roller disposed opposite to the first roller,
Sending the workpiece toward the processing unit by intermittently rotating and driving at least one of the first roller and the second roller;
In conjunction with the start of the workpiece holding operation by the processing unit, a roller retracting operation is performed to retract at least one of the first roller and the second roller in a direction away from the workpiece. With
A workpiece supply method for ending the roller retracting operation in conjunction with the end of the workpiece holding operation by the processing unit.

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