JP4068209B2 - Workpiece slitting and inspection equipment - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a workpiece slit machining and inspection apparatus for simultaneously performing machining of a slit on a workpiece requiring slit machining and an inspection as to whether or not a slit is formed.
[0002]
[Prior art and its problems]
For example, a diaphragm having a slit is used for a lid of a reservoir tank for a brake fluid of a vehicle. This is to allow the inflow of air into the reservoir tank through the slit when the brake fluid is reduced, but to prevent the brake fluid from flowing out in the event of a vehicle leaning or falling.
[0003]
In a diaphragm having such a slit, 100% inspection is performed to determine whether or not the slit processing is properly performed. Conventionally, however, slit machining and inspection thereof have been performed at different times and places, and there has been a problem that work efficiency is poor. In the conventional apparatus, the work is set manually, and automation is desired.
[0004]
OBJECT OF THE INVENTION
An object of this invention is to obtain the apparatus which can perform the slit process to a workpiece | work and its inspection almost simultaneously and automatically. Another object of the present invention is to obtain an apparatus that can automatically set and collect a workpiece.
[0005]
SUMMARY OF THE INVENTION
The workpiece slitting and inspection apparatus of the present invention has a pair of workpiece mounting tables and reciprocally rotates, and alternately turns one of the pair of workpiece mounting tables into a workpiece receiving position and the other as a workpiece processing and inspection position. A reciprocating rotary table to be positioned; a processing inspecting device having a lifting platform at a workpiece machining and inspection position and moving relative to and away from the workpiece mounting table; a workpiece mounting table provided on the lifting platform of the processing tester Slit processing blades and continuity inspection blades alternately facing each other; a blade base corresponding to the slit processing blades and a blade receiving contact corresponding to the above continuity inspection blades provided on each of the pair of work mounting tables; a pair of work mounting tables Elevating mechanism for individually elevating and lowering each of them, and when the reciprocating rotary table rotates, the elevating mechanism moves to the work placement position from the work processing and inspection position, and is in the raised position. Interfere with the work on over click mounting table, the workpiece collection bar dropping the workpiece from the said work rest; and a. Then, the lifting platform of the processing inspection machine lowers the slit machining blade with respect to the blade platform of the lifting platform at the workpiece machining and inspection position, and slits the workpiece on the lifting platform. Next, the continuity inspection blade is lowered with respect to the blade receiving contact of the lifting platform, and the control device rotates the reciprocating rotary table when the continuity inspection blade passes through the slit and becomes conductive with the blade receiving contact. Then, the workpiece on the workpiece mounting table is brought into contact with the workpiece recovery bar and dropped and recovered, and when the continuity inspection blade does not conduct with the blade receiving contact, an abnormal signal is generated and the workpiece mounting restored to the workpiece receiving position is performed. Before or after receiving the workpiece, the mounting table is lowered by the lifting mechanism to a position where it does not interfere with the workpiece collection bar, and the reciprocating rotary table receives the workpiece and moves the workpiece mounting table at the lowered position again to the workpiece machining and inspection position. It is positioned.
[0006]
The blade receiving contact can be shared with the blade receiving base if the blade receiving base is made of a metal material.
The workpiece machining and inspection position preferably includes a centering mechanism for setting the workpiece at a substantially center on the workpiece mounting table. However, the workpiece can be held at a predetermined position on the workpiece mounting table by, for example, a vacuum device.
The apparatus of the present invention preferably further includes a robot for transporting the workpiece on the workpiece mounting table at the workpiece receiving position. Specifically, the workpiece transfer robot is based on, for example, a fluoroscopic table, an image recognition device that recognizes the shape and position of a workpiece randomly supplied on the fluoroscopic table, and a signal from the image recognition device. And a transfer robot that selects a workpiece having a different shape and conveys the workpiece to a workpiece mounting table at a workpiece receiving position.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The apparatus according to this embodiment includes a processing inspection unit 10 that performs slit processing and inspection on a workpiece diaphragm (work) W, and a workpiece transfer robot 50 that supplies the workpiece to the processing inspection unit 10. First, the processing inspection unit 10 will be described.
[0008]
As shown in FIGS. 5 and 6, a reciprocating rotary table 13 is supported on the frame 11 so as to be reciprocally rotatable by a shaft 12. The shaft 12 (reciprocating rotary table 13) is reciprocated by 180 ° by an air rotary actuator 14. On the reciprocating rotary table 13, a pair of workpiece mounting tables 15 are provided at symmetrical positions in the diameter direction of the shaft 12. Each of the pair of workpiece mounting tables 15 can be selected by the air cylinder device 16 by selecting two positions, that is, an ascending position and a descending position. The left side of FIG. 5 shows the lowered position, and the right side shows the raised position.
[0009]
The pair of workpiece mounting tables 15 are alternately moved to the workpiece receiving position R and the workpiece machining and inspection position M by the reciprocating rotation operation of the reciprocating rotation table 13. The workpiece receiving position R is simply a position where the upper part of the workpiece mounting table 15 is opened. On the other hand, at the workpiece machining and inspection position M, a machining inspection device 18 having a lifting platform 17 that is moved up and down by a lifting drive device 20 is provided. The elevator 17 can be reciprocally rotated by 90 ° by a reciprocating rotator 19. The lifting platform 17 is provided with a slitting blade 21 and a continuity inspection blade 22 at different 90 ° directions. When the lifting platform 17 is reciprocally rotated 90 ° by a reciprocating rotator 19, the slit machining blade 21 is provided. And the continuity inspection blade continuity inspection blade 22 are selected to face the workpiece mounting table 15 at the workpiece processing and inspection position M.
[0010]
On the other hand, the workpiece mounting table 15 is provided with a blade receiving table 23 corresponding to the slit machining blade 21 of the processing tester 18 and a blade receiving contact 24 corresponding to the continuity testing blade 22. The blade receiving contact 24 can be made common with the blade receiving base 23 by configuring the blade receiving base 23 from a conductive material.
[0011]
A work centering mechanism 30 is also provided at the work machining and inspection position M. The work centering mechanism 30 includes a pair of centering hands 31 and an actuator 32 that expands and contracts the pair of centering hands 31. When the pair of centering hands 31 is closed, the work W is approximately at the center of the work mounting table 15. Located in. The interval between the hands 31 when the pair of centering hands 31 are closed can be adjusted by the turning operation of the adjustment knob 33. FIG. 6 shows a state in which the pair of centering hands 31 are closed.
[0012]
Near the workpiece receiving position R between the workpiece receiving position R and the workpiece machining and inspection position M, a workpiece collection bar 35 is provided at a fixed position on the upper part of the reciprocating rotary table 13. The workpiece recovery bar 35 interferes with the workpiece W on the workpiece mounting table 15 at the ascending position by the air cylinder device 16 when the reciprocating rotary table 13 rotates in the forward or reverse direction. 15 has a pair of interference arms 36 that are dropped from above.
[0013]
The control device 40 controls the pneumatic rotary actuator 14 and the pair of air cylinder devices 16 via the air control device 41, and determines whether the continuity inspection blade 22 and the blade receiving contact 24 are conductive or non-conductive. Then, the alarm device 42 is operated and the reciprocating rotary table 13 is stopped.
[0014]
The workpiece transfer robot 50 automatically supplies the workpiece W onto the workpiece mounting table 15 at the workpiece receiving position R. In the hopper 51 whose upper end is opened and the lower part is narrowed, a conveyor moving hole 52 is formed in the center of the bottom, and the conveyor moving hole 52 is directed so that a part of the endless conveyor 53 is directed upward from below. Has passed. The endless conveyor 53 has workpiece lifting plates 54 at predetermined intervals. When the workpiece lifting plate 54 passes through the hopper 51 from below to above, many workpieces W stored in the hopper 51 are lifted upward. It is done.
[0015]
Above the hopper 51, a blower 55 that blows off the work W on the work lifting plate 54 and a chute 57 that guides the work W blown off by the blower 55 onto the fluoroscopic table 56 are provided. Although not shown, a guide plate is provided around the chute 57 to ensure that the workpiece W blown off by the blower 55 is supplied onto the fluoroscopic table 56.
[0016]
A plurality of fluoroscopic tables 56 are provided, and alternately move to a position for receiving a workpiece W that randomly falls from the chute 57 and a position for receiving transfer by the transfer robot 58. The fluoroscopic table 56 includes an illumination device inside, and makes the outline of the workpiece W on the fluoroscopic table 56 stand out. The transfer robot 58 is provided with an image recognition device having a CCD camera that captures the entire image of the fluoroscopic table 56 at a position to be transferred by the transfer robot 58, and whether or not the workpiece W has a correct shape, and The position of the workpiece W on the fluoroscopic table 56 is recognized. That is, the workpiece W is a circular plane, and as schematically shown in FIG. 7, the non-overlapping workpiece W forms a correct circle, so that it is determined as a normal shape, and the position information on the fluoroscopic table 56 is can get. On the other hand, if a plurality of workpieces W are overlapped, the position information is not used because it is not determined to be circular in plan view.
[0017]
The transfer robot 58 has a suction arm 59, and the suction arm 59 can move to an arbitrary position on the fluoroscopic table 56. The transfer robot 58 moves the suction arm 59 to the position based on the position information of the normal workpiece W obtained by the image recognition device, sucks the workpiece W, and moves the workpiece W to the workpiece receiving position R. The sample is transferred onto a workpiece mounting table 15. When all the normal-shaped workpieces W (that is, non-overlapping workpieces W) on one perspective table 56 are transferred, another perspective table 56 having workpieces W that are randomly dropped by the blower 55 and the chute 57. Moves to a position for receiving transfer by the transfer robot 58. The workpiece W that has overlapped on the previous fluoroscopic table 56 is returned again into the hopper 51 by appropriate means, and the same operation is repeated thereafter.
[0018]
The apparatus having the above configuration operates as follows. In a state where the reciprocating rotary table 13 of the processing inspection unit 10 is stationary at the positions of FIGS. 5 and 6, the workpiece mounting table 15 at the workpiece receiving position R is in the lowered position by the air cylinder device 16. On the other hand, the workpiece mounting table 15 in the workpiece machining and inspection position M is in the raised position by the air cylinder device 16. In this state, the workpiece W is supplied to the workpiece mounting table 15 at the workpiece receiving position R by the transfer robot 58 of the workpiece transfer robot 50.
[0019]
On the other hand, the workpiece W positioned on the workpiece mounting table 15 at the workpiece processing and inspection position M is positioned substantially at the center of the workpiece mounting table 15 by the work centering mechanism 30. In this state, the lifting platform 17 initially has its slit machining blade 21 directed downward by the reciprocating rotator 19. When the lifting platform 17 is lowered by the lifting drive device 20, the slit machining blade 21 and the blade receiving platform 23 A slit is formed at a predetermined position of the workpiece W. When the lowering operation of the first lifting platform 17 is completed, the lifting platform 17 is once lifted, and the lifting platform 17 is rotated 90 ° by the reciprocating rotator 19 so that the continuity test blade 22 of the lifting platform 17 is connected to the blade receiving contact 24. Opposite. In this state, the lifting platform 17 descends again. If the continuity inspection blade 22 and the blade receiving contact 24 become conductive as a result of the lowering, the continuity inspection blade 22 passes through the slit in which the continuity inspection blade 22 is formed and is connected to the blade receiving contact 24, and is determined to be a good product. Then, the reciprocating rotary table 13 is rotated 180 ° in either the forward or reverse direction by the pneumatic rotary actuator 14, and the workpiece W on the workpiece mounting table 15 at the workpiece processing / inspection position M is moved during this rotation. The contact bar falls on one of the pair of interference arms 36 of the recovery bar 35. The dropped work W is collected in either one of the left and right chutes 45 and the container 46.
[0020]
When the reciprocating rotary table 13 rotates, the workpiece mounting table 15 that was in the workpiece receiving position R is in the lowered position by the air cylinder device 16. Therefore, the workpiece W transferred on the workpiece mounting table 15 reaches the workpiece machining and inspection position M without interfering with the workpiece collection bar 35, and the air cylinder device 16 at the workpiece machining and inspection position M. To reach the ascending position. As the workpiece mounting table 15 rises, the workpiece W on the mounting table 15 enters between the pair of centering hands 31 of the work centering mechanism 30. When the workpiece mounting table 15 is raised, the pair of centering hands 31 are opened by the actuator 32. When the workpiece W enters between the pair of centering hands 31, the actuator 32 closes the centering hand 31 and moves the workpiece W to the workpiece. It is positioned substantially at the center of the mounting table 15.
[0021]
At the workpiece machining and inspection position M, machining exactly the same as described above is performed, and then the reciprocating rotary table 13 rotates in a direction opposite to the previous rotation direction. Therefore, during this rotation, the workpiece W on the workpiece mounting table 15 at the workpiece processing and inspection position M comes into contact with the other of the pair of interference arms 36 of the workpiece recovery bar 35 and falls. The dropped work W is collected in the other of the pair of left and right chutes 45 and the container 46. The workpiece mounting table 15 that has dropped the workpiece W to the workpiece receiving position R reaches the lowered position by the air cylinder device 16, and receives a new workpiece W supplied by the workpiece transfer robot 50.
[0022]
On the other hand, no slit is formed in the workpiece W when the continuity inspection blade 22 and the blade receiving contact 24 do not conduct even when the elevating table 17 with the continuity inspection blade 22 facing downward is lowered. Therefore, the control device 40 operates the alarm device 42 and stops the device. After the operator or a robot (not shown) removes the defective product, the operation is started again. The slitting blade 21 and the blade pedestal 23 are replaced when the sharpness becomes dull or periodically.
[0023]
A bag may be used instead of the container 46. Further, if a counter for counting the workpieces W dropped on the chute 45 is provided, and the apparatus is stopped when the counter reaches a certain value, an alarm is issued.
[0024]
In the above-described embodiment, the present invention is applied to diaphragm slitting. However, the present invention is not limited to a diaphragm, and the present invention can be applied to a workpiece generally forming a slit.
[0025]
【The invention's effect】
According to the apparatus of the present invention, it is possible to perform slit processing on a workpiece and inspection thereof almost simultaneously and automatically. Also, the workpiece can be set and collected automatically.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing an example of the overall configuration of a diaphragm slitting and inspection apparatus according to the present invention.
FIG. 2 is a front view of the same part in cross section.
FIG. 3 is a plan view taken along line III of FIG.
4 is a side view taken along the line IV in FIG. 2;
FIG. 5 is a front view of the slit machining and inspection machine part.
6 is a plan view taken along the line VI in FIG. 5;
FIG. 7 is a diagram showing an example of a random drop state of a work on a transparent table.
[Explanation of symbols]
W Worked diaphragm (workpiece)
DESCRIPTION OF SYMBOLS 10 Processing inspection part 13 Reciprocating rotary table 14 Air-type rotary actuator 15 Workpiece mounting table 16 Air cylinder apparatus (elevating mechanism)
17 Lifting table 18 Processing inspection device 19 Reciprocating rotator 21 Slit processing blade 22 Continuity inspection blade 23 Blade receiving base 24 Blade receiving contact 30 Work centering mechanism 31 Centering hand 32 Actuator 35 Work recovery bar 36 Interference arm 40 Control device 41 Air control device 42 Alarm 45 Chute 46 Container 50 Workpiece Transport Robot 51 Hopper 52 Conveyor Movement Hole 53 Endless Conveyor 54 Work Lifting Plate 55 Blower 56 Fluoroscopic Table 58 Transfer Robot 59 Suction Arm

Claims (5)

A reciprocating rotary table having a pair of workpiece mounting tables, reciprocatingly rotating, and alternately positioning one of the pair of workpiece mounting tables at a workpiece receiving position and the other at a workpiece machining and inspection position;
A processing and inspection device having a lifting platform that is in the workpiece processing and inspection position and moves relative to and from the workpiece mounting table;
A slitting blade and a continuity inspection blade that are provided on the lifting platform of this processing inspection device and alternately face the workpiece mounting table;
A blade holder corresponding to the slit machining blade and a blade receiving contact corresponding to the continuity inspection blade respectively provided on the pair of workpiece mounting tables;
A lifting mechanism that individually lifts and lowers the pair of workpiece mounting tables; and a workpiece mounting that is in a raised position by the lifting mechanism that moves from the workpiece processing and inspection position to the workpiece mounting position when the reciprocating rotary table rotates. A workpiece recovery bar that interferes with the workpiece on the mounting table and drops the workpiece from the workpiece mounting table;
The lifting platform of the processing inspection machine lowers the slit machining blade with respect to the blade support of the lifting platform at the workpiece machining and inspection position, and slits the workpiece on the lifting platform. Next, the continuity testing blade is lowered with respect to the blade receiving contact of the lifting platform,
When the continuity inspection blade passes through the slit and the blade receiving contact is conducted, the control device rotates the reciprocating rotary table to bring the workpiece on the workpiece mounting table into contact with the workpiece collection bar and collect the fall. And when the continuity testing blade does not conduct with the blade receiving contact, an abnormal signal is emitted,
The workpiece mounting table restored to the workpiece receiving position is lowered to the non-interference position with the workpiece collection bar by the lifting mechanism before or after receiving the workpiece, and the reciprocating rotary table receives the workpiece and places the workpiece on the lowered position. An apparatus for slitting and inspecting a workpiece, wherein the mounting table is again positioned at the workpiece machining and inspection position. The slit machining and inspection apparatus according to claim 1, wherein the workpiece machining and inspection position is provided with a centering mechanism for setting the workpiece at a substantially center on the workpiece mounting table. 3. The slit machining and inspection apparatus according to claim 1, further comprising a robot that transports the workpiece onto the workpiece mounting table at the workpiece receiving position. The slit processing and inspection apparatus according to claim 3, wherein the workpiece transfer robot includes a perspective table, an image recognition device that recognizes the shape and position of the workpiece that is randomly supplied on the perspective table, and the image recognition device. A workpiece slitting and inspection apparatus having a transfer robot that selects a workpiece having a normal shape based on a signal and conveys the workpiece to a workpiece mounting table at a workpiece receiving position. 5. The slit machining and inspection apparatus according to claim 1, wherein the workpiece is a diaphragm.

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