JP2014200889A - Processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processing device in which a workpiece can be brought in and taken out against holding means easily.SOLUTION: As a processing device 1 comprises: a door 3 which allows an operator operation of bringing-in and taking-out of a workpiece against holding means 40; and door opening and closing means 10 which moves the door 3 respectively to an opening position 6 where the door 3 is positioned high and operator's access to the holding means 40 is accepted and a closing position 7 where the door 3 is positioned low and operator's access to the holding means 40 is blocked, then, the door 3 can be moved to the opening position 6 and the closing position 7 respectively by elevating the door 3 vertically through the door opening and closing means 10. Therefore, even in a case that the workpiece to be brought-in and taken-out is heavy, bringing-in and taking-out of the workpiece against the holding means 40 can be done easily, resulting in reduction of operator's burden.

Description

  The present invention relates to a processing apparatus that allows an operator to carry in and out a workpiece from a holding means.

  A manual type processing apparatus that processes a workpiece includes a housing that defines a processing chamber in which the workpiece is processed, and holds the workpiece and processes the workpiece. And at least processing means. A door having a handle is attached to the housing. This processing apparatus is configured such that an operator manually opens and closes the door while holding the handle.

  When carrying the workpiece into the holding means, the operator opens the door and places the workpiece on the holding means. After processing the workpiece, the operator opens the door and unloads the processed workpiece from the holding means (for example, see Patent Document 1 and Patent Document 2 below).

JP 2012-178511 A Japanese Utility Model Publication No. 06-23241

  However, when the workpiece to be carried in and out (carrying in / out) with respect to the holding means is heavy, it is difficult for the operator to hold the workpiece with one hand while opening and closing the door with the other hand, There is a problem in that it takes time and labor for the work to be carried in and out of the holding means after the door is once opened.

  The present invention has been made in view of the above circumstances, and there is a problem to be solved by enabling the workpiece to be easily carried into and out of the holding means.

  The present invention is a processing apparatus comprising a holding means for holding a workpiece and a processing means for processing the workpiece held by the holding means, the holding means being provided from the outside of the processing apparatus. A door that is movable between an open position and a closed position that allows the operator to carry in and out the workpiece, and by raising and lowering the door in the vertical direction, the door is positioned upward and the door is moved by the operator. Door opening / closing means for respectively moving the door to the open position that allows access to the holding means and the closed position where the door is positioned below and blocks access to the holding means by an operator. ing.

  In addition, the processing apparatus includes a pinching detection unit that detects pinching of a foreign object by the door when the door opening / closing unit moves the door from the open position to the closed position.

  The processing means preferably includes a cutting blade that cuts the workpiece held by the holding means, and a spindle that is mounted with the cutting blade and rotates the cutting blade.

  The processing apparatus according to the present invention includes a door that allows an operator to carry in and out the workpiece with respect to the holding means, an open position that allows access to the holding means, and a door that blocks access to the holding means. Since the door opening / closing means for moving the door to the position is provided, the door can be moved to the open position and the closed position by raising and lowering the door in the vertical direction by the door opening / closing means. Therefore, even if the workpiece to be carried in and out of the holding means is heavy, the workpiece can be easily carried in and out of the holding means, and the burden on the operator can be reduced.

  Since the processing apparatus includes a pinch detection means for detecting foreign matter, it is possible to detect whether or not foreign matter is pinched at the lower end of the door when the door is moved from the open position to the closed position. When a foreign object is caught, the foreign object can be removed, and the door can be closed reliably.

It is a perspective view of a processing device in the state where a door is in a closed position. It is a perspective view of the processing apparatus in the state which has a door in an open position. It is a perspective view which shows the structure of the door opening / closing means which opens and closes a door. It is a perspective view which shows the structure of a rodless cylinder unit. It is a perspective view which shows the slide base and connection plate which comprise a rodless cylinder unit. It is a perspective view which shows the structure of a pinching detection means. It is explanatory drawing which shows the state which detects a foreign material by a pinching detection means. It is a perspective view which shows the structure of a process means.

  A processing apparatus 1 illustrated in FIGS. 1 and 2 is a processing apparatus that performs a cutting process on a workpiece, and includes a housing 2. Inside the housing 2, a holding means 40 that holds and rotates the workpiece is disposed. At the front part of the housing 2, a door 3 that allows a worker to carry in and out the workpiece with respect to the holding means 40 is disposed.

  A manual door 4 is disposed adjacent to the door 3. A handle 5 is attached to the manual door 4, and the operator can open and close the manual door 4 by holding the handle 5 and pulling it left and right. The manual door 4 is opened, for example, when exchanging the tool of the processing means disposed inside the housing 2.

  A monitor 8 having a switch 8 a is disposed above the door 3 and the manual door 4. By operating the switch 8a by an operator, the opening / closing operation of the door 3 and the operating conditions of the processing apparatus 1 can be set. During the processing of the workpiece, the door 3 is not opened even if the switch 8a is operated. The operating condition refers to, for example, the rotational speed of the holding means 40 or the rotational speed of the spindle that rotates the tool of the processing means.

  As shown in FIG. 3, door opening / closing means 10 for opening and closing the door 3 is connected to the door 3. The door opening / closing means 10 includes a rodless cylinder unit 11 that raises and lowers the door 3 in the vertical direction, and a pair of support units 20 that support the rodless cylinder unit 11. Below, the specific structure of the door opening / closing means 10 is demonstrated.

  The rodless cylinder unit 11 includes a cylinder tube 12 extending in the vertical direction, a stopper portion 13a and a stopper portion 13b connected to both ends of the cylinder tube 12, a moving mechanism 14 disposed inside the cylinder tube 12, A connection plate 15 connected to the door 3 and a slide base 17 for raising and lowering the connection plate 15 are provided. A shock absorber 19a and a shock absorber 19b are attached to the stopper portion 13a and the stopper portion 13b, respectively. The shock absorber 19a and the shock absorber 19b have a function of absorbing vibration when the slide base 17 contacts the stopper portions 13a and 13b. In addition, as the rodless cylinder unit 11, the thing of the structure described in Unexamined-Japanese-Patent No. 2001-116017 can be used, for example.

  The support unit 20 is disposed in parallel with the rodless cylinder unit 11 and has a guide rail 21 extending in the vertical direction and a support base that slides on one surface of the guide rail 21 and connects the door 3 to the other surface. The base 22 and the stopper part 24a and the stopper part 24b which were connected with the both ends of the guide rail 21 are provided. The support base 22 is connected to one surface of the door 3 by a fastening screw 23.

  As shown in FIGS. 4 and 5, the slide base 17 includes a slide base 170 and a slide plate 172. The slide base 170 is used by connecting the connection surface 175 of the slide plate 172 to the connection surface 171 of the slide base 170. Is done.

  The slide base 170 is slidably disposed in the cylinder tube 12 via the moving mechanism 14. The moving mechanism 14 has, for example, at least a piston, a cylinder in which the piston is disposed, and a flow path for supplying compressed air to the piston. Then, the slide base 170 can be moved up and down by supplying compressed air to the flow path and reciprocating the piston.

  The slide plate 172 has a convex portion 173 protruding upward, and a pair of bent portions 174 are formed by bending both sides of the convex portion 173 backward. An elastic member 18 is laid on one surface (upper surface) of the bent portion 174. The elastic member 18 functions as a cushioning material when the slide base 17 contacts the connection plate 15 shown in FIG.

  The connection plate 15 shown in FIG. 5 has a recess 150 into which the upper portion of the slide base 17 is fitted. Further, the connection plate 15 is formed with a pair of bent portions 151 in which the lower portions on both sides of the recess 150 are bent backward. The elastic member 18 comes into contact with one surface of the bent portion 151. As shown in FIG. 3, the connection plate 15 configured as described above can fix the door 3 with the fastening screw 16 on the connection surface 152.

The door opening / closing means 10 configured as described above moves the door 3 up and down in the vertical direction,
As shown in FIG. 1 and FIG. 2, the upper position is an open position 6 that allows the worker to access the holding means 40, and the lower position is that the worker has access to the holding means. The doors 3 can be moved to the closed position 7 where they are blocked.

  The processing apparatus 1 includes a pinching detection means 30 on the back side of the connection plate 15 and the slide plate 172 shown in FIG. 6 in order to detect the pinching of foreign matter by the door 3. The pinching detection unit 30 includes an optical sensor 31 and an L-shaped light shielding plate 34.

  The sensor 31 is disposed on the rear side of the connection plate 15 and includes a light emitting unit 32 that emits detection light and a light receiving unit 33 that receives the detection light emitted from the light emitting unit 32. It is disposed on the upper surface of the bent portion 151 of the connection plate 15. The light shielding plate 34 is attached to the lower surface of the bent portion 174 of the slide plate 172, and one end projects upward from the elastic member 18. The light shielding plate 34 can enter between the light emitting unit 32 and the light receiving unit 33 to block the detection light. The pinching detection unit 30 can determine the presence or absence of a foreign substance based on whether or not the detection light emitted from the light emitting unit 32 can be detected by the light receiving unit 33.

  The holding means 40 shown in FIG. 8 is disposed on the moving base 41. The holding means 40 can move in the X-axis direction together with the moving base 41 along with the expansion and contraction of the bellows 42.

  On the moving direction (X-axis direction) of the holding means 40, a processing means 50 for cutting the workpiece W is disposed. The processing means 50 includes at least a spindle 51 having an axis in the Y-axis direction, a cutting blade 52 attached to the spindle 51, and a blade cover 53 that covers the cutting blade 52. Connected to the processing means 50 is an elevating means 60 for elevating the spindle 51 and the cutting blade 52 in the Z-axis direction and a Y-axis direction feeding means 70 for index-feeding the cutting blade 52 in the Y-axis direction. The processing means 50 can cut the workpiece W while rotating the cutting blade 52 at a predetermined rotational speed by the rotation of the spindle 51.

  In the processing apparatus 1 shown in FIG. 1 and FIG. 2, the operation of carrying the workpiece in and out of the holding means 40 will be described. In order to carry the workpiece before processing into the holding means 40, the operator operates the switch 8 a of the monitor 8 to move the door 3 from the closed position 7 to the open position 6.

  Specifically, the door opening / closing means 10 shown in FIG. 3 is operated to supply compressed air to the flow path formed inside the cylinder tube 12 and to reciprocate the piston. Push up.

  When the slide base 17 shown in FIG. 3 abuts on the connection plate 15 and further rises, the door 3 connected to the connection plate 15 and the pair of support bases 22 also rises. And the door 3 is moved until the slide base 15 contacts the shock absorber 19a, and the door 3 is moved to the open position 6 shown in FIG. When the door 3 moves to the open position 6, it becomes possible to access the holding means 40 inside the housing 2, so that the operator places the workpiece on the holding means 40.

  When the workpiece is placed on the holding means 40, the operator operates the switch 8a of the monitor 8, and the door 3 moves from the open position 6 to the closed position 7 as shown in FIG. That is, when the door opening / closing means 10 shown in FIG. 3 is operated, the slide base 17 is lowered in the moving mechanism 14 until it contacts the shock absorber 19b. As the connection plate 15 is lowered, the pair of support bases 22 are also lowered along the pair of guide rails 21, and the door 3 connected to the connection plate 15 and the pair of support bases 22 is also lowered. In this way, the door 3 moves to the closed position 7.

  Here, when the door 3 moves from the open position 6 to the closed position 7, it is detected by the pinching detection means 30 shown in FIG. 6 whether foreign matter is pinched at the lower end of the door 3. Specifically, the light emitting unit 32 projects detection light toward the light receiving unit 33. At this time, as shown in FIG. 7A, when the slide plate 172 and the connection plate 15 are in contact with each other via the elastic member 18, the light shielding plate 34 enters between the light emitting portion 32 and the light receiving portion 33. The detection light emitted from the light emitting unit 32 toward the light receiving unit 33 is blocked by the light shielding plate 34. Thereby, it can be recognized that no foreign matter is caught in the lower end of the door 3.

  On the other hand, as shown in FIG. 7B, although the slide plate 172 is lowered, the connection plate 15 connected to the door 3 does not contact the slide plate 172, and the slide plate 172 and the connection plate 15 When the light is separated, the detection light emitted from the light emitting unit 32 toward the light receiving unit 33 is not blocked by the light shielding plate 34 but is detected by the light receiving unit 33. Thereby, it can be recognized that a foreign object 9 such as an operator's hand is sandwiched in the lower end of the door 3. In this way, it is detected whether or not the foreign material 9 is sandwiched between the lower ends of the door 3, and after removing the foreign material, the door 3 is securely closed, and then the processing apparatus 1 starts processing the workpiece.

  Next, the workpiece W is cut by the processing means 50 shown in FIG. The holding means 40 holding the workpiece W is moved below the processing means 50, and the cutting blade 52 is lowered in the Z-axis direction by the elevating means 60. Then, the processing means 50 cuts the workpiece W while rotating the cutting blade 52 at a predetermined speed by the rotation of the spindle 51.

  After the workpiece W has been cut, the door opening / closing means 10 shown in FIG. 3 is operated to move the door 3 from the closed position 7 to the open position 6 as shown in FIG. Next, the worker carries out the processed workpiece from the holding means 40. As described above, the workpiece is carried into and out of the holding means 40.

In the processing apparatus 1, the door opening / closing means 10 can move the door 3 to an open position 6 that allows access to the holding means 40 and a closed position 7 that blocks access to the holding means 40, respectively. It is not necessary for the operator to open and close the door 3 during loading / unloading of the workpiece. Therefore, even if the workpiece to be loaded / unloaded is heavy, the workpiece can be easily loaded / unloaded with respect to the holding means 40. This can reduce the burden on the operator.
Further, since the processing apparatus 1 includes the pinching detection means 30, it is detected whether or not the foreign matter 9 is pinched at the lower end of the door 3 when the door 3 is moved from the open position 6 to the closed position 7. The door 3 can be closed reliably.

  Although not shown in the drawing, the processing apparatus 1 includes a control means, and the timing for opening and closing the door 3 is controlled on the apparatus side so that the door 3 is not opened while the processing apparatus 1 is in operation. Therefore, in the processing apparatus 1, it is possible to prevent the operator from accidentally opening the door 3 during processing of the workpiece, and the burden on the operator can be reduced.

  Although the processing apparatus 1 of this embodiment is an apparatus which cuts a workpiece, the processing apparatus of this invention also includes the apparatus which performs other processes, such as a grinding process and a laser processing.

1: Processing device 2: Housing 3: Door 4: Manual door 5: Handle 6: Open position 7: Closed position 8: Monitor 8a: Switch 9: Foreign matter 10: Door opening / closing means 11: Rodless cylinder unit 12: Cylinder tube 13a, 13b: Stopper part 14: Movement mechanism 15: Connection plate 150: Recessed part 151: Bent part 152: Connection surface 16: Fastening screw 17: Slide base 170: Slide base 171: Connection surface 172: Slide plate 173: Convex Part 174: Bending part 175: Connection surface 18: Elastic member 19a, 19b: Shock absorber 20: Support unit 21: Guide rail 22: Support base 23: Fastening screw 24a, 24b: Stopper part 30: Entrapment detection means 31: Sensor 32: Light emitting unit 33: Light receiving unit 34: Light blocking plate 40: Holding means 41: Movement Table 42: Bellows 50: processing means 51: Spindle 52: Cutting blade 53: Blade 60: elevating means 70: Y-axis direction feed means

Claims (3)

A processing apparatus comprising: a holding unit that holds a workpiece; and a processing unit that processes the workpiece held by the holding unit,
A door movable between an open position and a closed position that allows an operator to carry in and out the workpiece from the outside of the processing device;
By raising and lowering the door in the vertical direction, the door is positioned above and the operator is allowed to access the holding means, and the door is positioned below and the operator is placed on the holding means. And a door opening / closing means for moving the door to the closed position where access is blocked.   The processing apparatus according to claim 1, further comprising a pinching detection unit that detects a pinching of a foreign substance by the door when the door is moved from the open position to the closed position by the door opening / closing unit. The processing means includes a cutting blade for cutting a workpiece held by the holding means;
The processing apparatus according to claim 1, further comprising: a spindle on which the cutting blade is mounted to rotate the cutting blade.

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