JPH0430935A - Positioning/carrying method and device for work having plural oil holes - Google Patents

Abstract

PURPOSE:To automatically, simply, and smoothly make positioning and also carry works to the next process side by rotating works, until plural positioning pins are inserted in the oil holes of the works, to be positioned, and then holding the works with a clamping part to carry them. CONSTITUTION:When two works 6 are loaded on the receiving part 8 of a shifter 1 to be positioned, the periphery of the works 6 is surrounded with the clamping part 45 of a work holding and carrying means 4. Next a dividing motor 17 is lowered to engagingly mount an engaging part 16 of a tip part on the works 6. Then a dividing motor 17 is rotated concurrent with the approach of a positioning pin supporting pedestal 3 to the works 6 side, the oil holes 7 of the works 6 are turned to a positioning pin 44 side, and when both are conformed, positioning pins 44 are inserted in the oil holes 7 of the works 6. The works 6 are held with the clamping part 45, concurrently a dividing motor part 2 is moved in a direction parting from the works 6, the positioning pin supporting pedestal 3 is parted from the works 6, then the work holding and carrying means 4 is moved with holding the work 6, and thereby the next process works 6 are carried to the next process side.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is a method for positioning a workpiece having a plurality of oil holes, which has been carried into an apparatus in an arbitrary posture from a previous process, to orient the oil holes in a predetermined direction. The present invention relates to a method and apparatus for positioning a workpiece having a plurality of oil holes, which is then transported to the next process.

[Prior Art] For example, when a workpiece such as a bushing has an oil hole, the position of the oil hole is aligned in a predetermined direction with respect to the target part into which the workpiece (bushion) is inserted. It is often necessary to insert The oil hole of the workpiece is 1
In the case of a location, positioning of the workpiece is easy, and various positioning means have been employed in the past.

[Problems to be Solved by the Invention] In an automatic device that positions the oil hole of a workpiece brought in from a previous process in a predetermined direction, sends it to the next process side, and inserts the workpiece into a target part, as described above, There is 1 oil hole in the workpiece.
In the case of a location, the positioning is easy, and it is easy to manufacture a dedicated device that automatically positions the oil hole. However, in the prior art, there is no device that can smoothly and automatically position a workpiece that has multiple oil holes and orient a predetermined oil hole in a predetermined direction. do not have.

The present invention was created in view of the above circumstances, and
A workpiece with multiple oil holes that automatically, easily, and smoothly positions the oil holes of a workpiece in a predetermined direction, and also has multiple oil holes that transport the positioned workpiece to the next process side. The purpose of the present invention is to provide a method and device for positioning and transporting a workpiece.

[Method and Means for Solving the Problems] In order to achieve one or more objects, the present invention receives a workpiece having a plurality of oil holes from a previous process, and attaches the oil holes to a positioning pin arranged at a predetermined position. A workpiece having a plurality of oil holes, in which the workpiece is rotated by an indexing motor that is removably engaged with the workpiece for insertion, and the workpiece is conveyed to the next process side while the workpiece is positioned by a clamper. It is characterized by a positioning and conveying method, and as a means for implementing the method, after positioning a workpiece having a plurality of oil holes with the oil holes facing in a predetermined direction,
In a workpiece positioning and conveying device that has multiple oil holes and is configured to clamp the workpiece and transport it to the next process, it is possible to rotate the workpiece that has multiple oil holes that is carried in from the previous process by a feeder, etc. a shifter movably supported on a fixed side of the apparatus to accept and support the workpiece and to transfer the workpiece to a predetermined position; and a shifter disposed at a position facing the workpiece on the shifter that has been transferred to the predetermined position and rotates the workpiece. an indexing motor having an engaging portion at its end that removably engages with the workpiece for movement; and a positioning pin that is movably supported on the fixed side of the device and has a plurality of positioning pins arranged at predetermined positions. The shifter has a support stand and a clamp portion that detachably engages with the workpiece to grip the workpiece, and is supported on the fixed side of the apparatus so as to be transportable toward the previous H and H next process sides. a detection means for detecting that the positioning pin of the positioning pin support is inserted into the oil hole of the workpiece and outputting a detection signal to the workpiece gripping and conveying means side, the indexing motor side, etc.; This constitutes a workpiece positioning and conveying device having a plurality of oil holes.

[Operation] The workpiece is carried into a predetermined receiving location of the shifter from the previous process. The shifter moves the workpiece to a position facing the engaging portion of the indexing motor. The indexing motor rotatably holds the workpiece, and the positioning pins of the positioning pin support are arranged at predetermined positions. The rotary motor is rotated, the workpiece is turned toward the positioning pins, and the workpiece is rotated until the plurality of positioning pins are inserted into the oil holes of the workpiece.

When the positioning pin is inserted and the workpiece is positioned in a predetermined direction, the detection means issues a detection signal, the workpiece gripping and conveying means engages the workpiece, and the workpiece is gripped by the clamp portion of the gripping and conveying means. The workpiece gripping and conveying means conveys the workpiece gripped by the clamp part to the next process side in the same posture.

Embodiment One embodiment suitable for carrying out the present invention will be described below with reference to the drawings.

Fig. 1 is a front view showing the overall structure of the present embodiment, and Fig. 2 is a partial top view in the direction of the Figure 3 is an enlarged partial top view for explaining the detailed structure around the positioning pin of the positioning pin support in Figure 2, and Figure 4 is an enlarged partial top view of the positioning pin support in Figure 2.
Figure 5 is an enlarged side view in the direction of the ■ arrow in the figure, and Figure 5 is a mostly cross-sectional view of the enlarged line ■-v line in Figure 2. The enlarged side view in the direction of the arrow (■) in the figure, and FIGS. 7 to 14 are partial perspective views for explaining the operation of the embodiment.

As shown in FIG. 1, the workpiece positioning and transporting device is composed of a shifter 1, an indexing motor unit 2, a positioning pin support 3, a workpiece gripping and transporting means 4, a detection means 5 (FIG. 2), etc. .

In this embodiment, a device for simultaneously positioning and transporting two bush-shaped workpieces 6 will be described, and a case will be described in which the oil holes 7 are positioned at two of them.

The shifter I is made of an elongated block body, and has two recessed receiving portions 8 (FIG. 7) for receiving the workpiece 6. The shifter 1 is slidably supported on a base 9 on the fixed side of the device. As shown in FIG. 6, the receiving portion 8 of the shifter 1 has a guide shaft 10 into which the workpiece 6 is fitted.
is pivotally supported by a bearing 11. A cylinder 13 is connected to the shifter 1 via a bracket 12, and causes the shifter 1 to reciprocate. The workpiece 6 is loaded into one of the receiving portions 8 of the shifter 1 at position A shown in FIG. 11 by a carrying means such as a circuit feeder. In that case, the further receptacle 8 is in the position indicated by the dash-dot line in FIG.

By moving the shifter 1 to the left in the figure and moving the other receiving section 8 to the ? position, another workpiece 6 is loaded into the receiving section 8. That is, the two works 6 carried into the shifter 1 are moved and positioned to the A position and the B position by the movement of the shifter 1 by the cylinder 13.

Although omitted in FIG. 1, as shown in FIG. 6, a light emitter 14 and a light receiver 15 are fixed to the base 9, respectively, for detecting whether or not the workpiece 6 is received in the shifter 1. be done.

Next, the 1-index motor 2 will be explained.

At positions A and B shown in FIG. 1, an indexing motor 17 having an engaging part 16 fixed to its tip end, which engages above the workpiece 6 held in the receiving part 8, is arranged. Indexing motor 17 is supported by plate 18 . As shown in FIG. 6, the engaging part 16 is a locking part (not shown in the figure) that is connected to the edge of the workpiece 6 and can rotate the workpiece 6 as the indexing motor 17 rotates. ), and the motor shaft 20 of the indexing motor 17 is fixed by the bolt 19.
Fixed. As shown in FIG. 1, a cylinder 23 and a guide bush 24 are fixed to an upper plate 22 of a pedestal 21 of the apparatus, and a rod 25 of the cylinder 23 is connected to a plate 18. A guide shaft 26 that is slidably supported by the kite bushing 24 is also connected to the plate 18. The indexing motor 17 is configured to index and rotate, and is supported by a cylinder 23 so as to be movable upward.

The vertical movement of the index motor 17 is controlled by the kite bush 2.
This is done smoothly by a guide shaft supported by 4.

The engaging portion 16 is removably engaged within the workpiece 6.

Next, the positioning pin support base 3 will be explained with reference to FIGS. 2 to 6.

A cylinder 28 is fixed to the plate 27 on the stationary side of the device, and a push plate 30 is connected to the rod 29 of the cylinder 28.

As shown in FIG. 5, an upper plate 31 is fixed to the pusher plate 30 by a port 32. As shown in FIG. Further, two support pins 33 are fixed to the top plate 31 with nuts 34, and the support pins 33
3, one end side of an arm-like member 35 is supported by a pin. Further, a pair of guide bushes 36 are fixed to the plate 27, and a guide shaft 37 connected to the push plate 30 is slidably supported by the guide bushes 36. Further, as clearly shown in FIG. 4, a spring 40 is installed between the recess 38 formed in the push plate 30 and the recess 39 of the arm-shaped member 35. The spring 4o urges the arm-shaped member 35 toward the workpiece 6 on the shifter 1. Each arm-shaped member 35 has two positioning pin holders 41.
．． 42 is fixed, and positioning pins 43 and 44 are held in positioning pin holders 41 and 42 so as to be movable for position adjustment, and are fixed at predetermined adjustment positions. Locating pin 43°4
4 is inserted into the oil hole 7 of the workpiece 6 to position the workpiece 6 in a predetermined direction;
It is positioned and arranged to match the dimensions, pitch, etc. of

With the above structure, the oil hole 7 of the workpiece 6 is connected to the positioning pin 4-
3.44, and if the cylinder 28 is operated in this state, the positioning pins 43.44 will be inserted into the oil holes 7, and the workpiece 6 will be positioned. The reason why the arm-like member 35 has a pin support structure is to allow the positioning pins 43 and 44 to fit into the oil hole 7 without any force.

Next, the workpiece gripping and conveying means 4 will be explained.

As shown in FIG.
A clamp section 45 that grips the upper workpiece 6, a clamp operation section 46 that operates this, and a support stand 47 that supports these.
The support stand 47 is slidably supported on the fixed side of the apparatus and is formed so that it can be transported to the next process side (
Note that although the detailed structure of the support base, conveyance rails, etc. are not shown in the figure, it is constructed from a general sliding mechanism. The workpiece gripping and conveying means 4 interferes with the workpiece 6 and the like when moving the shifter l carrying the workpiece 6 toward the indexing motor 17, so it is on standby at a position away from the workpiece 6 and the like. When the workpiece 6 is positioned at a predetermined position, the workpiece gripping and conveying means 4 moves to the second position.
It is positioned as shown in the figure, and the workpiece 6 is surrounded by the clamp part 45. Note that the structure of the operating section 46 that operates the clamp section 45 is well known and is not particularly shown.

Further, the workpiece gripping and conveying means 4 is provided with a dog 49 that engages with the touch sensor 48, and is configured to be able to detect that the workpiece gripping and conveying means 4 has been moved to the workpiece 6 side. Note that the touch sensor 48 is mounted on the pedestal 2 on the fixed side of the device.
It is fixed to the first side by a bracket 5o.

Next, the detection means 5 will be explained.

A dog 51 is provided on the distal end side of the arm-shaped member 35 of the positioning pin support base 3, and a touch sensor 52 is provided at a position facing the dog 51. The touch sensor 52 is fixed to the pedestal 21 side via a bracket 53. dog 5
1 is formed in an arm-like member 35 so that its stroke length can be freely adjusted, and is formed so that the positioning pin 45 of the positioning pin support 3 is inserted into the oil hole 7 of the workpiece 6, comes into contact with the touch sensor 52, and emits a detection signal. Ru.

Next, the function and operation of the fifth embodiment will be explained in more detail with reference to FIGS. 7 to 14.

As shown in FIG. 7, the workpiece 6 conveyed from the previous process by the feeder 54 or the like is carried into one receiving portion 8 of the shifter 1 at the human position in FIG.

In this case, the direction of the oil hole 7 of the workpiece 6 is arbitrary.

In addition, the insertion of the workpiece 6 is confirmed by the light beam from the light emitter 14. When work 6 is loaded, the shifter moves as shown in Figure 8, and the loaded work 6 moves to B in Figure 1.
The feeder is moved to position A, and another feeder is placed at position A from feeder S4.
The workpieces 6 are carried into the receiving section 8. Light emitter 14
Check the rays of light.

As shown in FIG. 9, when two workpieces 6 are mounted on the receiving portion 8 of the shifter 1 and positioned at positions A and B, the workpiece gripping and conveying means 4 approaches the workpieces 6 and clamps them. The part 45 surrounds the workpiece 6. However, the clamp section 45 does not grip the workpiece 6 at this stage. Next, as shown in FIG. 10, the cylinder 23 of the indexing motor section 2 operates, and the indexing motor 17
4 while being guided by the guide shaft 26, and the engaging portion 16 provided at the tip thereof engages the workpiece 6 as shown in FIG. 6, thereby rotatably holding the workpiece 6.

Next, as shown in FIG. 11, the positioning pin support base 3 approaches the workpiece 6 side. At the same time, the indexing motor 17 rotates to direct the oil hole 7 of the workpiece 6 toward the positioning pin 44 of the positioning pin support 3.

When the two match, the positioning pin 44 is inserted into the oil hole 7 of the workpiece 6, as shown in FIG. As described above, the dog 51 contacts the touch sensor 52 in this state, confirms that the workpiece 6 has been positioned, and issues a detection signal.

As shown in FIG. 13, the detection signal causes the clamp section 45 of the workpiece gripping and conveying means 4 to grip the workpiece 6, and at the same time, the indexing motor section 2 moves in a direction away from the workpiece 6. Next, as shown in FIG. 14, the positioning pin support stand 3 is separated from the workpiece 6, and after this is confirmed by the detection means 5, the workpiece gripping and conveying means 4 moves while gripping the workpiece 6, and the workpiece 6 is moved. Release from shifter 1. Next, the workpiece gripping and conveying means is moved to the next process side by means of the same conveyance rail, etc., and the workpiece 6 is conveyed to the next process side.

With the above steps, the positioning and conveyance of the workpiece is completed, and the next workpiece 6 is positioned and conveyed in a similar cycle.

In this embodiment, the workpiece 6 as shown in the figure is used, the oil hole 7 is also used as shown in the figure, and two pieces of the workpiece 6 are handled at the same time, but the present invention is not limited thereto.

[Effect of the invention] According to the present invention, the following effects can be achieved.

1) Since each means is automatically controlled in synchronization with each other, everything from carrying in the workpiece to positioning it and transporting it to the next process is performed automatically, and the workpiece can be positioned and transported quickly and reliably.

2) Even if the workpiece has a plurality of oil holes, reliable positioning can be carried out easily and smoothly using the indexing motor 17 and the positioning pin of the positioning pin support. Further, the detection means accurately confirms the positioning.

3) Since no special mechanism is adopted for the device structure, it can be formed at a relatively low cost.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the overall structure of this embodiment, Fig. 2 is a partial top view taken in the direction of the Figure 3 is an enlarged partial top view for explaining the detailed structure around the positioning pin of the positioning pin support in Figure 2, and Figure 4 is an enlarged partial top view of the positioning pin support in Figure 2.
5 is an enlarged cross-sectional view taken along the line ■-V in FIG. (2) An enlarged side view in the direction of arrows, and FIGS. 7 to 14 are partial perspective views for explaining the operation of the embodiment. 1... Shifter, 2... Indexing motor section, 3...
Positioning pin support base, 4... Workpiece gripping and conveying means, 5
...Detection means, 6. Workpiece, 7. Oil hole, 8.
...Reception part, 9...Base stand, 10...Guide shaft, 11...Bearing, 12...Bracket, 13,2
3.28...Cylinder, 14...Light emitter, 15...
- Light receiver, 16... Engaging portion, 17... Indexing motor, 18.27... Plate, 19.23... Bolt, 20... Motor shaft, 21... Frame, 22. 31
...Top plate, 24.36...Guide bushing, 25
．． 59...lot, 26.37...guide shaft, 30.
...Push plate, 31...Top plate, 33...Support pin,
34... Nando, 35... Arm-shaped member, 38.3
9... recess, 40... spring, 41.42...
・Positioning pin holder, 43.44...Positioning pin, 45...Clamp part, 46...-Operating part, 47...
・Support stand, 48.52...Touch sensor, 49.53
...Dog, 50.51...Bracket, 54 ・Feeder.

Claims (1)

[Claims] 1) Receive a workpiece having a plurality of oil holes from a previous process,
The workpiece is rotated by an indexing motor that is removably engaged with the workpiece in order to insert the oil hole into the positioning pin placed at a predetermined position, and the workpiece is moved to the next position while the positioned workpiece is held by a clamper. A method for positioning and transporting a workpiece having a plurality of oil holes, characterized in that the workpiece is transported to a process side. 2) Positioning of a workpiece having a plurality of oil holes configured such that after positioning the workpiece having a plurality of oil holes so that the oil holes are oriented in a predetermined direction, the workpiece is clamped and transported to the next process side. In a conveyance device, a shifter rotatably receives and supports a workpiece having a plurality of oil holes carried in from a previous process by a feeder, etc., and is movably supported on a fixed side of the device to transfer the workpiece to a predetermined position. an indexing motor provided at an end thereof with an engaging portion disposed at a position facing the workpiece on the shifter that has been transferred to a predetermined position and removably engages with the workpiece in order to rotate the workpiece; A positioning pin support base movably supported on a stationary side and having a plurality of positioning pins arranged at predetermined positions, and a clamp portion removably engaged with the workpiece to grip the workpiece on the shifter. A workpiece gripping and conveying means is supported on a fixed side of the device so as to be conveyable toward the next process side, and detects that the positioning pin of the positioning pin support is inserted into the oil hole of the workpiece, and grips the workpiece. A workpiece positioning and conveying device having a plurality of oil holes, characterized in that a detecting means for emitting a detection signal is provided on the conveying means side, the indexing motor side, etc.