JPH0524665Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[0001]

[Field of Industrial Application] The present invention consists of a processing device main body that processes flat workpieces with different dimensions at a reference position on a processing table, and a The present invention relates to a processing device for a flat workpiece, which has a workpiece supplied thereto and a workpiece guide device provided with a pair of guide bodies that guide both side edges of the workpiece.

[0002]

[Background Art] Conventionally, a processing device for a flat workpiece includes a processing device main body that performs processing such as drilling, a feeding device that feeds an unprocessed workpiece to the processing device main body, and a processing device that processes a flat workpiece by the processing device. Some systems are comprised of a discharging device that discharges the workpieces after they have been processed, and in order to transport or place the flat workpieces in an aligned state in such feeding devices and discharging devices, a workpiece guide device is installed. It is being

[0003] In such a guide device, when guiding both side edges of a flat workpiece by a pair of guide bodies, it is possible to adjust the interval between both guide bodies according to the width of the plate material. has traditionally been used. For example, Tokko Akira
The plate material supply guide device disclosed in Japanese Patent No. 56-18494 includes guide plates that are arranged opposite to each other and guide both sides of the plate material, and at least one of these two guide plates in the width direction of the plate material. It is composed of a guide moving means including a moving motor, and a position detection switch that moves integrally with the guide plate and detects one side of the plate. The positioning of the guide plate of this plate material supply guide device is as follows:
With one side of the plate material to be fed in contact with the fixed guide plate, turn on the manual switch, move the movable guide plate via the motor, and use the detection switch to move together with the movable guide plate. The motor is stopped after detecting that the motor crosses the other side.

[0004] Also, in Japanese Patent Application Laid-open No. 60-52437,
A workpiece dimension measuring device is installed in front of the guide device,
A configuration is disclosed in which the guide device is set based on values measured by this dimension measuring device.

[0005]

[Problems to be solved by the invention] As mentioned above, there have been processing devices that have a processing device main body and a work guide device, but each of these operates independently and is organically combined. It's not a thing. That is, when an unprocessed workpiece is supplied from the supply device, the processing device main body positions the workpiece, transports it to the processing device, and then processes the workpiece. Then, as the next step, after measuring the dimensions of the workpiece after processing, the guide interval of the workpiece guide device is appropriately set based on the measurements.
Guides the workpiece after processing. Therefore,
We perform positioning to transport unprocessed workpieces to the appropriate processing position on the processing equipment main body, and dimensional measurements to accurately guide the processing when transporting and arranging processed workpieces in ejection equipment, etc. They need to be done completely independently and separately.

[0006] For example, the configuration described in Japanese Patent Publication No. 56-18494 relates to a device that guides an unprocessed workpiece, and the guide device can be adjusted easily and quickly. In order to accurately process the guided and transported workpiece, it is necessary to perform positioning again on the main body of the processing apparatus. Furthermore, with this configuration, it was necessary to interrupt the processing and redo the adjustment work each time the width of the plate material was changed. For this reason, there are problems in that productivity is not improved any further and automation cannot be achieved, especially when processing workpieces with different dimensions.

[0007] In addition, when guiding the workpiece after processing using the device described in JP-A No. 60-52437,
After aligning the workpiece to be processed on the main body of the processing device and performing processing at the appropriate position, the processed workpiece is transferred to the external measurement section of this guide device and its dimensions are measured, and the measurement results are recorded. The guide device is configured to be adjusted based on the following. In this case as well, it is necessary to provide the guide device with a dimension measuring mechanism in addition to the positioning mechanism of the processing device main body, which makes the structure complicated. Furthermore, since a dimension measurement step is required, the number of steps increases and the working time becomes longer.

[0008] As described above, in any of the conventional configurations, the guide device and the processing device main body are completely independent devices, so the workpiece dimension measurement mechanism in the guide device, etc. is separate from the positioning mechanism in the processing device main body. It is necessary to newly provide it, and the mechanism becomes complicated. Furthermore, since it is necessary to perform dimension measurement for the workpiece guide and positioning for processing as separate steps, there is a drawback that the working time is increased.

[0009] Therefore, the present invention has developed a new method by organically combining a processing device main body for processing a flat workpiece and a workpiece guide device for guiding the workpiece after processing. The object of the present invention is to provide a processing device that is capable of fully automatically and continuously processing workpieces having different dimensions, especially widths, and subsequently guiding the workpieces with a simple configuration without the need for special equipment. .

[0010]

[Means for Solving the Problems] In order to achieve the above object, the flat workpiece processing apparatus according to the present invention is capable of processing flat workpieces with different dimensions on a processing table. A lengthwise positioning mechanism and a widthwise positioning mechanism that move the unprocessed workpiece supplied to the machine body and the processing table of the machine body in the length direction and width direction to a reference position on the process table. a work guide device to which a processed work is supplied and has a pair of guide bodies for guiding both side edges of the work, at least one of which is movable; and an unprocessed work. and a drive motor that moves at least one of the guide bodies so that the interval between the two guide bodies matches the width of the workpiece, based on the amount of movement of the width direction positioning mechanism from the initial position when the workpiece is transferred to the reference position. are doing.

[0011]

[Embodiment] First, the general configuration of the entire processing apparatus of this embodiment will be explained based on FIG. 1. This processing device is designed to process a flat workpiece W (in the case of this embodiment, a printed circuit board), and includes a processing device main body A and a processing device main body on which the unprocessed workpiece W is placed. A workpiece mounting table B, which is arranged on the left side of A so that it can be raised and lowered, and a workpiece placed at the top of the workpiece W placed on the workpiece mounting table B are placed one by one on the processing table 1 of the processing apparatus main body A. Air adsorption type workpiece supply device C
and a work ejecting device D, which is installed on the right side of the processing device main body A, to eject the workpiece W that has been processed such as drilling by the processing device main body A; A workpiece discharge device D is used to receive the processed workpiece W to be discharged.
It consists of a workpiece receiver E which is disposed on the right side of the main body A of the processing apparatus below so as to be movable up and down. Since the workpiece mounting table B and the workpiece supply device C are not directly related to the gist of the present invention, further detailed explanation will be omitted.

[0012] Next, the processing device main body A will be explained. The processing device main body A is equipped with a video camera 2 above the processing table 1, and this camera 2 images the wiring pattern (not shown) of the workpiece (printed circuit board) W, and this signal is stored. A well-known image processing device (not shown) performs image processing to identify the position of the pattern to be processed, and a drill device (see Fig. (not shown), but prior to this drilling process, the workpiece W supplied onto the processing table 1 by the work supply device C is placed on the processing table 1.
The workpiece is positioned by a workpiece positioning device installed on the underside of the workpiece.

[0013] This workpiece positioning device also functions as a detection means for detecting the dimensions (length and width) of the workpiece W to be machined.
As shown in, the length direction of the work W (X-axis direction)
longitudinal positioning mechanism 3 for determining the position of
x, and a width direction positioning mechanism 3y for determining the position of the workpiece W in the width direction (Y-axis direction).

[0014] Since the longitudinal positioning mechanism 3x and the width direction positioning mechanism 3y have substantially the same mechanism, the detailed structure of the longitudinal positioning mechanism 3x will be explained with reference to FIGS. 3 and 4. do.

[0015] In FIG. 2, 4x and 5x are support plates fixed to the lower surface of the processing table 1 so as to hang down, and a guide rail 6 is installed between the support plates 4x and 5x.
x is fixed. The guide rail 6x has a U-shaped cross section, and supports the carrier 7x so as to be movable in the length direction (X-axis direction). As clearly depicted in FIG. 3, an air cylinder 8x is attached to the underside of the carrier 7x.
The axis of x passes through the carrier 7x, and a lifting plate 9x is fixed to the protruding end thereof. Two guide shafts 10x, 10x are vertically provided on the lower surface of the lifting plate 9x, and both guide shafts 10x, 10x are connected to the carrier 7x.
It slidably passes through a bearing 11x provided in the bearing 11x. A holder 13x that rotatably supports the rotating roller 12x is attached to the elevating plate 9x with the following structure. That is, the holder 13x has two guide shafts 14x and 15x protruding rearward, and both guide shafts are slidably mounted on a block 16x (see FIG. 2) fixed to the upper surface of the elevating plate 9x. They are mated. As shown in FIG. 2, the guide shaft 14x slidably passes through the block 16x, and the spring 17x
It was fired forward by the.

[0016] Next, a driving means for moving the carrier 7x will be explained. In FIG. 3, a motor mounting plate 19x that supports a drive motor (stepping motor) 18x is fixed to the lower surface of the processing table 1, and the motor 18
A timing gear 20x is fixed to the x axis. Timing gear 21 is located below the motor 18x.
x, 22x are located on the rotating shaft 2 to which these are fixed.
3x is rotatably supported by side plates 24x and 25x. Side plates 24x and 25x are mounting plates 26
x, and this mounting plate 26x is fixed to the aforementioned support plate 5x.

[0017] A timing belt 28 is provided between the timing gears 20x and 21x and between the timing gear 21x and the timing gear 27x shown in FIG.
x, 29x are wound. That is, the rotation of the motor 18x is transmitted to the timing belt 29x via the timing gear 20x, the timing belt 28x, the rotating shaft 23x, and the timing gear 22x. The above-mentioned carrier 7x is moved in the length direction (X-axis direction) of the work W by the rotation of the timing belt 29x.

[0018] The widthwise positioning mechanism 3y is substantially the same mechanism as the lengthwise positioning mechanism 3x, so a detailed explanation will be omitted, but corresponding parts will be indicated by the reference numerals of the parts of the lengthwise positioning mechanism 3x. The subscript x is replaced with y.

[0019] Also, on the processing table 1, the workpiece W
A fixed-side positioning member (pin) 30 for determining the reference position in the length direction is arranged with the following structure. That is, as shown in FIG. 4, a bracket 32 to which an air cylinder 31 is attached is fixed to the lower surface of the processing table 1, and the positioning member 30 is slidably inserted through a bearing 33 provided on the bracket 32. However, it is designed to protrude to the upper surface of the processing table 1 via the cylinder 31 or retreat from the upper surface of the processing table 1.

[0020] On the other hand, a fixed positioning member 33 for determining the reference position of the work W in the width direction is fixed to the work gripping means 34 shown in FIG.
In the initial state, the workpiece gripping means 4 is located at the position shown in FIG. (not shown), thereby causing the workpiece W held by the workpiece gripping means 34 to be moved vertically and horizontally toward the drill center O.

[0021] In FIG. 2, 1a is the roller 12.
This is a long groove drilled in the processing table 1 along the moving directions of x and 12y, and workpiece sensors 35 and 36 detect that the workpiece W has been moved to the reference position.

[0022] Here, the operation of positioning the workpiece W supplied onto the processing table 1 of the processing apparatus main body A by the workpiece supply device C will be described. In the initial state, both the roller 12x shown in FIG. 3 and the positioning member 30 shown in FIG. 4 of the longitudinal positioning mechanism 3x are in a state of being sunk from the upper surface of the processing table 1. Roller 1 of width direction positioning mechanism 3y
2y is also sunk from the upper surface of the processing table 1. In this state, the workpieces W are fed one by one onto the upper surface of the processing table 1 of the processing apparatus main body A by the workpiece supplying device C shown in FIG. 1, but the accuracy of this feeding position is relatively rough. In FIG. 2, two orthogonal end surfaces Wa and Wb of the workpiece W are supplied to positions slightly apart from the positioning members 30 and 33 on the fixed side. Work W
is supplied onto the processing table 1, the cylinder 8
x and 8y are activated, and the elevating plates 9x and 9y rise,
Accordingly, the rollers 12x and 12y protrude to the upper surface of the processing table 1. At the same time, the positioning member 30 is also made to protrude onto the upper surface of the processing table 1 via the cylinder 31 (see FIG. 4).

[0023] First, the longitudinal positioning mechanism 3
The drive motor 18x of the work W is driven, and the rollers 12
The end surface Wc of the substrate W is pushed forward by x (the state shown in FIG. 2). Next, the drive motor 18y of the width direction positioning mechanism 3y is driven, and the end face Wb of the workpiece W is
until it comes into contact with the positioning member 33,
In other words, the end surface Wd of the workpiece W is pushed forward by the roller 12y until the end surface Wb of the workpiece W reaches a position where it completely crosses the workpiece sensor 36.

[0024] When the positioning of the workpiece W is completed in this way, the rollers 12x, 12y and the positioning member 30 are moved to the corresponding cylinders 8x, 8.
y, 31, the substrate W is held by the gripping means 34 and moved to the right on the processing table 1, and is moved to the drill center O position via a drill device (not shown). The desired drilling process is then performed. The workpiece W, on which the predetermined drilling process has been completed, is sent to the workpiece discharge device D and discharged onto the workpiece receiver E (Fig. 1
reference).

[0025] Then, to explain the workpiece discharging device D, this workpiece discharging device D includes a workpiece transfer device F that transfers the workpiece W sent from the processing device main body A, and a workpiece W transferred by this workpiece transfer device. a work guide device G that guides the
It is roughly divided into a stopper device H for aligning the leading end surface of the workpiece W to be discharged.

[0026] First, to explain the work transfer device F, as shown in FIGS. 5 and 6, support plates 38, 39, and 40 are suspended and fixed to the lower surface of a fixed top plate 37, and these support plates allow two guide shaft 4
Both ends of 1 and 42 are held. Both guide shafts 4
A movable body 43 is slidably supported on 1 and 42, and this movable body is reciprocated from side to side by an endless belt 45 driven by a drive motor 44. In addition, the moving body 4
A plate 48 on which a work transfer claw 46 is rotatably pivoted by a shaft 47 is fixed to one side of the workpiece transfer claw 46, and the rear end of the transfer claw 46 is rotatably pivoted on the plate 48. It can be moved to the position shown by the chain line in FIG. 6 by means of an air cylinder 49.

[0027] The workpiece W processed by the processing device main body A is moved between the two pull-in rollers 50 and 50 shown in FIG.
51 into the workpiece discharging device D. At this time, the transfer claw 46 of the work transfer device F is retracted to the chain line position via the cylinder 49.
When the workpiece W is completely drawn into the workpiece discharging device D, the transfer claw 46 is lowered to the solid line position by the cylinder 49, and then the drive motor 44 (see FIG. 5) is driven. As a result, the transfer claw 46 moves to the right together with the movable body 43, and the rear end surface of the workpiece W is pushed by the transfer claw 46 and is advanced to the right.

[0028] At this time, the work W is guided by the work guide device G configured as follows.

[0029] As shown in FIG. 9, the work guide device G includes a pair of guide bodies 52, 52a each having a U-shaped cross section and guiding both side edges of the work W. The guide body 52 located on the right side in the direction of movement of the workpiece W is attached to the lower surface of the movable body 53 in FIGS. 7 and 8.
Installed as shown. That is, two sets of air cylinders 56 and 57 are held on the lower surface of the movable body 53 via brackets 54 and 55, and the axis of the cylinder 56 is attached to the outer surface of the guide body 52, and the axis of the cylinder 57 is attached to the outer surface of the guide body 52. They pass through holes 58 formed in the guide body 52 and are connected to the width shifting plates 59 in the guide body 52, respectively. Further, the lower surface of the guide body 52 is slidably received by a part of a workpiece dropping guide 60 which is fixedly suspended from the lower surface of the movable body 54 . As shown in FIG. 5, the movable body 54 is slidably supported by two guide shafts 61 and 62, and both ends of the guide shafts are connected to the bottom surface of the top plate 37. It is held by support plates 63 and 64 which are fixed in a hanging manner. Further, a feed screw 65 to which a part of the movable body 54 is screwed is rotatably supported on both support plates 63 and 64, and this feed screw 65 is connected to a drive motor 66 attached to the support plate 64 and It is designed to be rotationally driven via a belt 67.

[0030] The guide body 53 located on the right side in the direction of movement of the workpiece W is the same as the guide body 52 shown in FIG.
Similarly, a width adjustment plate 59a (see FIG. 9) is movably fitted inside, and the guide body 52a and width adjustment plate 59a are connected to air cylinders 56a, 57a.
It is now possible to move forward and backward independently. However, as shown in FIG. 5, the cylinders 56a and 57a are attached to a support plate 69 that is fixed to a workpiece drop guide 60a that is suspended and fixed to the lower surface of the top plate 37.

[0031] Here, positioning of the work guide device G will be explained. The moving body 5 is rotated by rotating the feed screw 65 via the drive motor 66 and the drive belt 67.
4 moves, and the guide body 52 changes its position along with it. The position of the guide body 52 is automatically adjusted according to the width of the workpiece W supplied to the main body A of the processing apparatus. That is, in the workpiece positioning device (see FIG. 2) that positions the workpiece W supplied onto the processing table 1 of the processing device main body A, the widthwise positioning mechanism 3
The amount of movement of the positioning mechanism 3y from the initial position can be detected by the number of pulses supplied to the drive motor 18y (this number of pulses is counted by a counter not shown). The guide body 52 shown in FIG. 5 is automatically moved by the same amount as . The amount of movement of the guide body 52 is determined by the amount of movement of the guide body 52.
Detection is performed by a slitted detection disk 68 fixed to 5 and a cooperating detector (not shown).

[0032] In this way, the position of the work guide device G is automatically set according to the width of the work W.
As shown in FIG.
6, and the amount of work W to be transferred is made different depending on whether the work W to be discharged is a good product or a defective product. In other words, workpiece W is a good product.
When the workpiece is Wg, the transfer claw 46 moves to the 46a position, and when the workpiece W is a defective product Wng, the transfer claw 46 moves to the 46b position.
It is now being moved to a new location. The image processing device of the processing apparatus main body A described above determines whether the discharged workpiece W is a good product or a defective product. For example, if a pattern is not in the desired position or a hole is not formed in the desired position even after processing, a defective product signal is supplied from the image processing device to the workpiece discharging device D, and based on the The amount of movement of the work transfer claw 46 is determined as described above.

[0033] A stopper device H for aligning the front end surfaces of the workpiece W transferred by the workpiece transfer device F.
As shown in FIG. 6, it includes a movable stopper 70 for good products and a fixed stopper 71 for defective products. The movable stopper 70 is rotatably attached to the side surface of a mounting plate 73 fixed to the side surface of the movable body 72 via a shaft 74.
is fixed to the lower end surface of the mounting plate 73. The movable stopper 70 can be retracted to the chain line position via an air cylinder 75 whose rear end is rotatably attached to the mounting plate 73. Mobile object 7
2, as shown in FIG. 5, the above-mentioned guide shaft 41,
42, and a feed screw 76, which is rotatably supported by support plates 39 and 40, is threaded through this movable body 72. The feed screw 76 is rotationally driven via a drive motor 78 and a belt 79 attached to a support plate 77 that is suspended and fixed to the lower surface of the top plate 37. Therefore, as the drive motor 78 is rotationally driven, the feed screw 76 rotates, thereby moving the movable body 72 and moving the movable stopper 70 and the fixed stopper 71 together.

[0034] The position of the movable body 72, that is, the positions of the movable stopper 70 and the fixed stopper 71, are also automatically adjusted according to the length of the workpiece W supplied to the main body A of the processing apparatus. That is, in the workpiece positioning device (see FIG. 2) that positions the workpiece W supplied onto the processing table 1 of the processing device main body A, the amount of movement of the longitudinal positioning mechanism 3x from the initial position is supplied to the drive motor 18x. The stopper device H shown in FIG. will be moved. This amount of movement of the stopper device H is determined by the feed screw 7.
Detection is performed by a slit detection disk 80 fixed to 6 and a detector (not shown) cooperating therewith.

[0035] By the end surfaces of the good product Wg and the defective product Wng coming into contact with the stoppers 70, 71 of the stopper device H whose positions are automatically set according to the length of the workpiece W in this way, due to inertia, The workpiece is prevented from overshooting and the end faces are uniformly aligned.
Note that when the work to be discharged is a defective product Wng, the cylinder 75 is driven by the defective product signal from the image processing device described above, and the movable stopper 7
0 is retreated to a position where it does not become an obstacle to the movement of the defective product Wng, as shown by the chain line.

[0036] The works guided by the work guide device G and transferred by the work transfer device F are released onto the work receiver E and stacked one after another as shown in FIG. That is, immediately before releasing the workpiece, the cylinder 5 shown in FIG.
7, 57a, the width shifting plates 59, 59a are shown in FIG.
As shown in A, the guide bodies 52, 52a are moved inward to a distance slightly larger than the width of the workpiece, and then the guide bodies 52, 52a are moved back as shown in FIG. 9B via the cylinders 56, 56a shown in FIG. At this time, since the width shifting plates 59, 59a protrude from the guide bodies 52, 52a, the workpiece W is moved to the workpiece falling guide 6.
0,60a and falls onto the workpiece receiver E due to its own weight. The work receiver E is intermittently lowered one step each time one work W is discharged. Therefore, as shown in FIG. 1 or FIG.
are stacked so that they protrude by a certain amount from the good Wg.

[0037] It goes without saying that the present invention is also applicable to the case where an ordinary guide device that does not have a workpiece W release function is used. Further, the present invention is not limited to the work guide device of the work discharge device, but also includes a case where the work guide device is disposed within the main body of the processing device.

[0038] As described above, in the present invention, the width of the workpiece is measured using the positioning mechanism during workpiece machining, and the guide body is positioned based on this, so the guide body can be automatically positioned in an extremely simple configuration. You can set the interval. In other words, conventional processing equipment required a positioning mechanism to place the workpiece at a reference position on the processing table in order to process the workpiece at an accurate position, but the present invention improves the positioning mechanism. You can use this to set the spacing between the guide bodies. Therefore, it is not necessary to add a special device such as a dimension measuring device to set the distance between the guide bodies as in the conventional case, and the guide device can be automatically positioned.

【0039】

[Effects of the invention] According to the invention described in detail above, the processing device main body for processing a flat workpiece and the workpiece guide device for guiding the workpiece after processing are linked, and the processing Since the width of the unprocessed workpiece supplied to the machine body is already measured when positioning it, there is no need to measure the dimensions of the workpiece or align the guide body again after processing. The guide bodies of the work guide device can be set at appropriate intervals. Therefore, even when processing workpieces with different widths, processing can be performed continuously without interruption. Therefore, 24-hour operation or nighttime operation is possible for machining workpieces of different widths. Moreover, since it utilizes the width direction positioning mechanism of the workpiece positioning device installed in the main body of the processing equipment, there is no need to provide a special workpiece width detection mechanism in the workpiece guide device unlike in the past, making the configuration more complicated. It never becomes.

[Brief explanation of the drawing]

FIG. 1 is a reduced front view showing the entire processing apparatus to which the present invention is applied.

FIG. 2 is a plan view showing a workpiece positioning device in the processing apparatus main body.

FIG. 3 is an enlarged sectional view taken along line SS in FIG. 2;

FIG. 4 is an enlarged sectional view taken along the line T-T in FIG. 2;

FIG. 5 is a plan view of the work discharge device with the top plate removed.

FIG. 6 is an enlarged partial cutaway sectional view taken along line U-U in FIG. 5;

FIG. 7 is an enlarged partial cross-sectional plan view of the work guide device.

8 is a sectional view taken along the line V-V in FIG. 7. FIG.

FIG. 9 is an explanatory diagram showing a work release operation of the work guide device.

[Explanation of symbols]

A...Processing equipment main body D...Work discharge device G...Work guide device W...work 1……Processing table 3x...Longitudinal positioning mechanism 3y... Width direction positioning mechanism 18x...Drive motor for longitudinal positioning mechanism 18y... Drive motor of width direction positioning mechanism 52...Guide body 52a...Guide body 53...mobile object 66...Moving body drive motor 68...detection disk.

Claims (1)

[Scope of utility model registration request] Claim 1: A processing device main body for processing flat workpieces having different dimensions on a processing table; A length direction positioning mechanism and a width direction positioning mechanism that move the workpiece to a reference position on the processing table by pushing it forward in the length direction and width direction, and the workpiece after processing is supplied and guides the both side edges of the workpiece. a work guide device having a pair of guide bodies, at least one of which is movable; and an initial stage of the width direction positioning mechanism when transferring the unprocessed work to the reference position. A processing device for a flat workpiece, comprising a drive motor that moves at least one of the guide bodies so that the distance between the two guide bodies matches the width of the workpiece based on the amount of movement from the position. .