JP2017124456A - Workpiece processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a workpiece processing device capable of recovering cut chips efficiently, while preventing effectively positional deviation of the workpiece during workpiece processing.SOLUTION: Adsorption means is moved three-dimensionally so as to be positioned on a processing spot circumference by moving means, and adsorbed and held onto a workpiece rear face supported (held) by workpiece support means, and first cut chip suction means moved in a three-dimensional direction integrally with the adsorption means is faced to the processing spot circumference, to thereby perform negative pressure suction of cut chips discharged in company with a workpiece processing.SELECTED DRAWING: Figure 4

Description

  The present invention performs a cutting process such as a drilling process for drilling a predetermined part of a workpiece made of a synthetic resin or a metal material, a trimming process for cutting and removing a burr of the work, or a polishing process for polishing to a predetermined thickness. Workpiece processing equipment to be performed, specifically cutting waste while preventing the workpiece from being displaced due to cutting resistance or vibration during cutting of the work (in the present invention, “cutting waste” refers to workpiece cutting powder, abrasive powder, processing The present invention also relates to a work processing apparatus provided with cutting waste collecting means for efficiently collecting oil smoke generated from cutting oil that sometimes cools a work processing tool.

  When performing various types of cutting using a workpiece processing tool that rotates relative to the workpiece, the workpiece is likely to be displaced due to vibration, cutting resistance, etc. caused by the rotationally driven cutting tool, resulting in poor workpiece machining accuracy. There is a fear. In addition, the cutting waste discharged along with the workpiece processing adheres to the workpiece and the processing device, deteriorates the processing accuracy for the next workpiece, reduces the cleanliness of the atmosphere in which the processing device is installed, Further, prior to machining a workpiece that has been machined in the next step, it is necessary to remove the attached cutting waste, which is a factor that degrades work efficiency.

In order to solve the above problem, as a device for removing and collecting cutting waste generated during workpiece machining, for example, cutting waste collection and removal means shown in Patent Documents 1 and 2 are known. Patent Document 1 is provided with a fitting opening for fitting and fixing with a sample fixing tool fixed on a work table of a drilling machine over a lower part and a side part of the main body. A sample insertion opening for insertion into the work space and a discharge opening for discharging cutting waste are provided, and a safety cover body for covering the drill attached to the drilling machine is connected and fixed to the upper part of the main body. The present invention relates to a safety dust collecting cover for a drilling machine provided with an upper opening.

However, since the dust collection cover of Patent Document 1 is provided with a discharge opening for discharging cutting waste on the side of the main body, cutting dust can be discharged when drilling the side end of the workpiece. However, when the center portion of the workpiece is drilled, the discharge opening cannot interfere with the sample fixing tool and cannot be moved, so that cutting waste cannot be discharged.

  Further, Patent Document 2 is provided on the downstream side of a workpiece processing line made of an FRP molded product, and cutting in which the front and rear of a cutting waste removing device for removing cutting waste during workpiece processing are covered with a flexible sheet. A number of air blow nozzles are arranged in the direction crossing the processing line at the top of the waste removal chamber, and a dust collection hood is provided at the top of the waste removal chamber, and the waste removed by the air blow nozzle is collected in the dust bucket. The present invention relates to a cutting scrap removing device.

  However, the cutting waste removing device of Patent Document 2 jets compressed air from the air blow nozzle to the entire workpiece to be cut on the processing line, blows off the cutting waste, and collects it in the dust bucket. In order to avoid this positional deviation, the workpiece must be fixed in advance with respect to the processing line, which causes a problem that the processing efficiency is deteriorated. In addition, it is necessary to inject compressed air over the entire workpiece, and in order to effectively remove and collect cutting waste, a large volume of compressed air is required. There is a problem that costs increase.

JP 2008-168415 A JP 2000-288865 A

  The problem to be solved is that in order to efficiently remove and collect cutting waste while maintaining the machining accuracy for the workpiece, it is necessary to fix the workpiece in advance, and the work work efficiency deteriorates due to the work for that purpose. It is in. Further, in order to effectively remove and collect the cutting waste, a large volume of compressed air is required. Therefore, the consumption of the compressed air is increased, and the removal and collection cost of the cutting waste is increased.

  The present invention provides a workpiece machining apparatus that performs a desired machining by a workpiece machining means on a predetermined portion of the workpiece supported (held) by the workpiece support means, and machining the back surface of the workpiece supported (held) by the workpiece support means. A plurality of suction means for sucking the peripheral edge of the part, a moving means for moving the suction member in a three-dimensional direction, and moving in the three-dimensional direction integrally with the suction member to face the processing part. The first main feature is that the first cutting waste suction means for negatively sucking the discharged cutting waste is provided.

  The present invention can efficiently collect cutting waste while effectively preventing the workpiece from being displaced during workpiece machining.

It is a perspective view which shows the outline of a workpiece | work processing apparatus. FIG. 2 is a schematic plan view of FIG. 1. It is a partially broken perspective view which shows the workpiece processing tool periphery in a workpiece processing means. It is an expansion perspective view which shows a 1st cutting waste suction means. It is sectional explanatory drawing which shows the state which has located the 1st and 2nd cutting waste suction means in the cutting location of the workpiece | work. It is sectional explanatory drawing which shows the cutting waste removal effect | action by the 1st and 2nd cutting waste suction means.

With respect to the work back surface supported (held) by the work support means, the suction means is moved and sucked and held by the moving means so as to be positioned at the periphery of the processing location, and moved in the three-dimensional direction integrally with the suction member. It is an optimum embodiment that the first cutting waste suction means is made to be opposed to the peripheral edge of the processing position and the cutting waste discharged along with the workpiece processing is sucked under negative pressure.
With

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 4, the workpiece machining means 3 of the workpiece machining apparatus 1 is connected so that a plurality of arms 5 swing and rotate relative to each other, and a workpiece machining tool 7 is attached to the distal end of the distal arm 5. It is comprised by the articulated robot provided. The workpiece processing means 3 swings and rotates the workpiece processing tool 7 with the number of axes corresponding to the number of swing axes and the number of rotation axes of the arm 5 to make a synthetic resin workpiece or a metal workpiece, specifically a composite. Predetermined processing is performed on various workpieces W of resin vehicle bumpers and vehicle interior panels.

  An electric motor 11 constituting a part of the processing tool 7 is attached to the attachment plate 9 attached to the distal end portion of the arm 5 on the distal end side, and the work piece is attached to the spindle 13 connected to the output shaft of the electric motor 11. The processing tool 7 is detachably attached. As the workpiece processing tool 7, when drilling to drill a predetermined portion of the workpiece W, a rotary blade (drill) is formed on the spindle 13, and when a burr formed integrally with the workpiece W is removed by cutting. The end mill is attached to the spindle of the electric motor in a replaceable manner.

  In addition to the above, the workpiece processing tool 7 may be a laser beam output head that cuts the workpiece W with the thermal energy of the laser beam.

The mounting plate 9 is opened at the lower end shown in the figure, covers the periphery of the processing tool 7 with a gap, and is connected to a suction dust collector (not shown) via a dust collecting pipe 17. A proximal end portion of the dust collecting hood 15 constituting the suction means is attached. As the dust collecting hood 15, a bellows boot that expands and contracts by pressing against the surface of the workpiece W during processing to form a closed space around the surface of the workpiece W and the workpiece processing tool 7 is suitable.

  The workpiece support means 19 of the workpiece machining apparatus 1 supports (holds) the workpiece W to be machined by the workpiece machining means 3 in a positioned state, and is provided on the rear side (the workpiece machining means 3 side) of the main body 21 on the left and right sides. A pair of left and right first support members 23 erected at intervals corresponding to the longitudinal width of the workpiece W processed in the direction, the longitudinal width of the workpiece W processed in the left and right directions on the front side of the main body 21 shown in the figure. And a pair of left and right second support members 25 standing at intervals according to the distance, and a central support member 27 standing at the intermediate portion in the front-rear direction and the left-right direction shown in the drawing.

  The first and second support members 23 and 25 and the central support member 27 support the support portions 23a, 25a, and 27a by contacting the back surface of the work W, or support the work W by a suction pad provided at the tip portion. Adsorb and hold the back side of.

As each 1st and 2nd support member 23,25 and the center support member 27, each 1st support member corresponding to the magnitude | size, shape, etc. of the workpiece | work W which this applicant owns, for example like patent 5787423 invention. 23 can be adjusted in the left-right direction and the up-down direction, the second support members 25 can be adjusted in the front-rear direction, the left-right direction, and the up-down direction, and the center support member 27 can be adjusted in the up-down direction. May be. A mechanism for moving the first and second support members 23 and 25 and the central support member 27 in the above-described directions in accordance with the size and shape of the workpiece W is described in the above-mentioned Japanese Patent No. 5787423. Therefore, detailed description thereof is omitted.

On the left and right sides of the central support member 27, the main body 21 near the first support member 23 is provided with moving means 29, respectively. Each moving means 29 is connected so that a plurality of arms 33 swing and rotate like each other as in the work processing means 3, and a plurality of suction members described later provided at the distal end of the arm 33 on the distal end side. The drive is controlled so as to move three-dimensionally and to be positioned at the peripheral edges of a plurality of machining locations on the back surface of the workpiece W.

The attachment plate 39 attached to the distal end of the arm 33 on the distal end side is connected to a suction dust collector (not shown), and is provided with a plurality of suction pads 35a that are brought into pressure contact with each processing portion on the back surface of the workpiece W and suck negative pressure. Individual suction members 35 (shown in the case of three) are respectively attached to equally divided positions in the circumferential direction.

Further, a central portion of the mounting plate 39 is connected to a suction dust collector (not shown) through a suction pipe 37a. The suction hood 37b which comprises the 1st cutting waste suction means 37 with which the upper surface shown in figure is open | released is attached. The suction hood 37b is attached such that the upper surface opening has a slightly smaller diameter than the virtual circle connecting the suction pads 35a of the suction members 37 and the suction port is located slightly below the suction holes of the suction pads 35a.

Reference numeral 41 in the drawing is attached to each suction member 35, and is a suction sensor that detects suction on the back surface of the work W when each suction pad 35a is pressed against the back surface of the work W and elastically deformed with a predetermined reduction width. is there. Further, when each suction pad 35a is sucked to the back surface of the work W and elastically deforms in the reduction direction, the suction hood 37b has its upper surface opening brought close to or in contact with the processing portion peripheral edge of the work W back surface. The suction hood 37b may be an elastically deformable rubber or the like or the bellows boot like the dust collection hood 15.

Next, the workpiece machining operation by the workpiece machining apparatus 1 configured as described above will be described. First, the first and second support members 23 and 25 in the workpiece support means 19 and the support portions 23a of the central support member 27, A predetermined support position on the workpiece W is positioned with respect to 25a and 27a and is placed and supported so as to have a desired posture.

In the work support means 19 provided with the first and second support members 23 and 25 and the center support member 27 that can move in the left-right direction, the front-rear direction, and the up-down direction, respectively, as in the patent 5787423 invention, The first and second support members 23 and 25 and the central support member 27 are moved in the respective directions in accordance with the shape and size of the work W to be processed, the support posture, and the like, and the support portions 23a and 25a, 27a is made to correspond to each support location on the back surface of the work W, and then the work W is placed and supported.

Further, in the above support state, each moving means 29 is driven and controlled to move each suction member 35 so as to be positioned at the periphery of the processing location on the back surface of the workpiece W, and then each suction member 35 that is operated with negative pressure is moved to each of the suction members 35. The periphery of the processing portion of the workpiece W is held by being attracted to the periphery of the processing portion. (See Figure 5)

In addition, each suction member 35 is set so as to suck and hold the peripheral edges of the respective processing points located in the right region and the left region of the workpiece W illustrated.

Next, when the workpiece machining means 3 is driven and controlled in the above state and the workpiece machining tool 7 is moved to the machining area in the right region of the workpiece W, for example, the workpiece machining tool 7 is further drilled, for example. The workpiece machining tool 7 is rotationally driven by the electric motor 11 that is driven while controlling the movement of the workpiece machining tool 7 in the direction perpendicular to the surface of the workpiece W, thereby drilling the machining portion.

At this time, the dust collection hood 15 covering the periphery of the workpiece processing tool 7 forms a closed space by elastically deforming the lower end thereof by pressing against the periphery of the processing location on the surface of the workpiece W.

In the initial stage of the drilling process, the surface side of the workpiece W is cut and discharged as cutting waste as the workpiece processing tool 7 rotates, but the discharged cutting waste is pressed against the periphery of the processing portion to form a negative pressure. After being sucked into the dust collecting hood 15, it is collected by the suction dust collecting device via the dust collecting pipe 17.

Further, at the end of the drilling process, most of the cutting waste is discharged to the back side of the workpiece W along with the drilling, but the cutting waste discharged to the back side is formed at the peripheral edge of the processing place and is formed with negative pressure. After being sucked into the suction hood 37b, it is collected by the suction dust collector through the suction pipe 37a. (See Figure 6)

The workpiece machining means 3 is driven and controlled corresponding to a preset machining location on the workpiece W to sequentially move the workpiece machining tool 7 to the machining location on the surface of the workpiece W, and the drive means 29 is driven to control the suction member 35 and After the suction hood 37b is sequentially moved to the periphery of the machining location on the back surface of the workpiece W, the workpiece machining tool 7 that rotates by driving the electric motor 11 is driven while controlling the workpiece machining means 3.

In the present embodiment, the cutting waste discharged from the front side with the drilling of the workpiece W is sucked into the dust collection hood 15 formed with negative pressure, and the cutting waste discharged from the back side is formed with negative pressure. By sucking into the suction hood 37b and collecting and removing it, the workpiece W can be prevented from being contaminated with cutting waste, and work efficiency in the subsequent process can be improved.

Further, the cutting waste adheres to the support portions 23 a, 25 a, 27 a of the first and second support members 23, 25 and the central support member 27, so that the support posture of the workpiece W is caused by vibration by the workpiece processing tool 7, cutting resistance, etc. By preventing the displacement, the processing accuracy of the workpiece W can be stabilized.

In the above description, the moving means of the workpiece machining means 3 and each first cutting waste suction means is constituted by an articulated robot. In the present invention, the cutting tool and the first cutting waste suction means are moved in a three-dimensional direction. It can also be implemented as an orthogonal triaxial structure.

DESCRIPTION OF SYMBOLS 1 Work processing apparatus 3 Work processing means 5 Arm 7 Work processing tool 9 Mounting plate 11 Electric motor 13 Spindle 15 Dust collection hood 17 Dust collection pipe 19 which comprises a part of 2nd cutting waste suction means 19 Work support means 21 Main body 23 1st 1 support member 23a support part 25 second support member 25a support part 27 central support member 27a support part 29 moving means 31 arm 35 suction member 35a suction pad 37 first cutting dust suction means 37a suction pipe 37b suction hood 39 mounting plate 41 suction Sensor W Workpiece

The present invention provides a workpiece machining apparatus that performs a desired machining by a workpiece machining means on a non-supported machining portion of a workpiece supported (held) by a plurality of workpiece support means, which is supported (held) by the workpiece support means. A plurality of suction means for sucking the peripheral part of the workpiece on the back side of the workpiece, a moving means for moving the suction member in the three-dimensional direction to be positioned on the peripheral part of the workpiece part on the back side of the workpiece , and three-dimensionally integrated with the suction member The first main feature of the present invention is that it includes first cutting waste suction means that moves in the direction and faces the machining position, and sucks negative waste that is discharged along with the workpiece machining.

The present invention provides a workpiece machining apparatus that performs a desired machining by a workpiece machining means on a predetermined portion of the workpiece supported (held) by the workpiece support means, and machining the back surface of the workpiece supported (held) by the workpiece support means. a plurality of adsorption means for adsorbing portion periphery, a moving means for moving said suction means into a three-dimensional direction, against phase to machining spot to move the three-dimensional directions integrally with the suction means, with the workpiece machining The first main feature is that the first cutting waste suction means for negatively sucking the discharged cutting waste is provided.

On the left and right sides of the central support member 27, the main body 21 near the first support member 23 is provided with moving means 29, respectively. Each moving means 29 is connected so that a plurality of arms 33 swing and rotate like each other as in the workpiece processing means 3, and constitutes a suction means described later provided at the distal end of the arm 33 on the distal end side. The plurality of suction members 35 are three-dimensionally moved and controlled to be positioned at the peripheral edges of the plurality of machining locations on the back surface of the workpiece W.

DESCRIPTION OF SYMBOLS 1 Work processing apparatus 3 Work processing means 5 Arm 7 Work processing tool 9 Mounting plate 11 Electric motor 13 Spindle 15 Dust collection hood 17 Dust collection pipe 19 which comprises a part of 2nd cutting waste suction means 19 Work support means 21 Main body 23 1st 1 support member 23a support portion 25 second support member 25a support portion 27 central support member 27a support portion 29 moving means 31 suction member 35a constituting arm 35 suction means suction pad 37 first cutting dust suction means 37a suction pipe 37b suction hood 39 Mounting plate 41 Suction sensor W Workpiece

Claims (5)

In a workpiece machining apparatus that performs a desired machining by a workpiece machining means on a predetermined portion of the workpiece supported (held) by the workpiece support means,
A plurality of adsorbing means for adsorbing the processing portion peripheral edge of the back surface of the work supported (held) by the work supporting means;
Moving means for moving the suction member in a three-dimensional direction;
A first cutting scrap suction means that moves in a three-dimensional direction integrally with the suction member and is opposed to the processing portion, and suctions the cutting scrap discharged along with the workpiece processing under a negative pressure;
Workpiece processing equipment equipped with In claim 1,
The workpiece support means includes a workpiece support member on the side portion that supports (holds) the workpiece by moving at least in the longitudinal direction and the vertical direction of the workpiece on both sides in the longitudinal orthogonal direction of the workpiece, and the longitudinal direction and longitudinal orthogonal direction of the workpiece. Work processing apparatus provided with a center support member that supports (holds) the work at the center of the. In claim 2,
The workpiece support member located on one side of the workpiece in the direction orthogonal to the longitudinal direction of the workpiece moves in the longitudinal direction and the vertical direction of the workpiece to support (hold) the workpiece, and the workpiece support member located on the other side of the workpiece supports in the longitudinal direction of the workpiece. A workpiece processing apparatus that supports (holds) a workpiece by moving in the longitudinal orthogonal direction and the vertical direction. In claim 1,
The workpiece machining device is provided with a second machining waste suction unit that covers the periphery of the workpiece machining tool and is provided with a second machining waste suction unit that sucks negatively the cutting waste discharged from the workpiece surface side during workpiece machining. In claim 4,
The second cutting dust suction means is a workpiece processing device that is connected to a negative pressure generation source and expands and contracts with pressure contact with the workpiece surface to form a closed space between the workpiece surface and the workpiece surface.

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