JP5741227B2 - Deburring device - Google Patents

Description

  The present invention relates to a deburring device that removes burrs generated by sheet metal processing such as cutting and punching by a punch press and other various plate material processing machines.

  As a deburring device that removes burrs from workpieces made of sheet metal, a roll-shaped brush member that transports workpieces with burrs formed on the upper surface in a horizontal direction by a conveyor and rotates around the horizontal brush axis with respect to the workpieces. There is a configuration in which burrs on the upper surface of the workpiece are removed by bringing the surface into contact with the top (for example, Patent Document 1). In this type of burr device, not only the brush member rotates around the brush axis, but also the brush member rotates around the vertical pivot axis in order to bring each part of the brush axis direction of the brush member into uniform contact with the workpiece. Turn.

  The brush member is formed by, for example, innumerable brush bristles made of a strip-like cloth file or paper file around a core member in a roll shape. This brush member wears the tip of the bristle due to contact with the workpiece, so that the length of each bristle becomes shorter with use. Therefore, it is necessary to adjust the relative height of the brush member with respect to the conveyor according to the change in the length of the bristle. Conventionally, the adjustment of the relative height corresponding to the wear of the brush has been performed by a manual switch operation with respect to the lifting drive source. In addition, when changing processing conditions such as the thickness of the workpiece, it is necessary to adjust the relative height of the brush member with respect to the conveyor. Conventionally, adjustment of the relative height accompanying the change of the processing origin has also been performed by a manual switch operation.

JP 2010-58241 A

  In the case of a workpiece made of sheet metal, conventionally, the relative height of the brush member with respect to the conveyor has been adjusted by a manual switch operation, resulting in variations in adjustment. Further, the entire deburring device is covered with a cover, and it is necessary to check the relative height by putting the body inside the cover, which makes adjustment work troublesome. It is necessary to adjust the relative height corresponding to the wear of the brush of the deburring device periodically, for example, once a day. Furthermore, when the adjustment of the relative height accompanying the change of the machining origin is overlapped, the work is increased, the burden on the operator is increased, and the production efficiency is lowered.

An object of the present invention is to provide a deburring device that can automatically adjust the relative height of a brush member with respect to a conveyor, suppress variation in adjustment, and facilitate adjustment work.
Another object of the present invention is to provide a light emitting / receiving type brush lower end detecting means that does not obstruct the conveyance of the work by the conveyor and has few restrictions on installation.
Still another object of the present invention is to enable automatic adjustment of the conveyor height accompanying the change of the processing origin when the conveyor is moved up and down to adjust the relative height of the brush member with respect to the conveyor.

Deburring apparatus of the first invention in this inventions comprises a conveyor for conveying horizontally placed burr the work formed on the upper surface on the conveying surface, and deburring head disposed above the conveyor, A relative height adjusting mechanism for adjusting a relative height of the deburring head with respect to the conveyor. The deburring head includes at least one roll-shaped brush member that is rotatable around a horizontal brush axis, and a swivel support member that supports the brush member so as to be pivotable around a vertical swivel axis. The relative height adjusting mechanism includes an elevating support unit that supports the conveyor or the deburring head so as to be movable up and down, and an elevating drive source that raises and lowers the conveyor or the deburring head. A light emitting and receiving type brush lower end detecting means provided on a frame of the conveyor and capable of detecting the lower end of the brush member, and raising and lowering controlling the raising and lowering drive source based on detection of the lower end of the brush member by the brush lower end detecting means Control means . In the brush lower end detecting means, the light projecting part and the light receiving part are on both sides of the conveyor transport path, the opposing direction of the light projecting part and the light receiving part is parallel to the conveyor transport surface and the conveyor The arrangement is inclined with respect to the transport direction.

  The deburring apparatus having this configuration adjusts the height of the conveyor or the deburring head so that the deburring head has an appropriate relative height corresponding to the processing conditions such as the plate thickness of the workpiece. The deburring head is rotated around the pivot axis while rotating the brush member around the brush axis. In this state, the work is placed on the transport surface of the conveyor and transported horizontally by the conveyor. The lower end of the brush member comes into contact with the work to be conveyed, and the burr formed on the upper surface of the work is removed. By rotating the brush member, each part in the brush axis direction of the brush member uniformly contacts the upper surface of the workpiece, and the burr is removed in a good state.

  Since the brush member is worn and shortened with the operation, for example, the relative height of the deburring head with respect to the conveyor is adjusted periodically. Also, when changing processing conditions such as workpiece thickness, the relative height of the deburring head with respect to the conveyor is adjusted. The adjustment of these relative heights is automatically performed by detecting the lower end of the brush member by the light emitting / receiving type brush lower end detection means, and the elevation control means controls the elevation drive source based on the detection. Therefore, variation in relative height adjustment can be suppressed. Further, the operator only has to operate a switch for starting the adjustment of the relative height, for example, and does not have to check the relative height by putting the body inside the cover of the deburring device as in the past. Therefore, adjustment work is easy.

  The brush bristles of the brush member are generally made by attaching abrasive grains to a strip-like cloth or paper, and do not have rigidity. Therefore, the brush bristles are not in a straight state when positioned upward or sideward, but are in a straight state when positioned downward with respect to the brush axis. Since the brush lower end detection means detects the lower end of the brush located below the brush axis, the shortening of the brush hair is accurately reflected in the detection result. Therefore, the relative height can be adjusted with high accuracy.

The light projecting portion and a light receiving portion of the brush bottom detecting unit, if placed on both sides of the conveying path of the conveyor, not to obstruct the conveyance of the workpiece by the conveyor. Further, when the light projecting unit and the light receiving unit are arranged so that the facing direction of the light projecting unit and the light receiving unit is parallel to the conveyor transport surface and oblique to the transport direction of the conveyor, the light projecting unit In addition, restrictions on installation of the light receiving unit are reduced, and design is facilitated. In particular, when a plurality of brush members are provided along the conveying path of the conveyor, each brush can be detected by a set of brush lower end detecting means by arranging the light projecting unit and the light receiving unit as described above. It becomes possible to detect the lowermost position among the lower ends of the members.

  In the present invention, the elevating support means supports the conveyor so that it can be raised and lowered, and the elevating drive source raises and lowers the conveyor, and the relative height adjusting mechanism has a predetermined reference height. A conveyor height detecting means for detecting the height of the conveyor with respect to the brush lower end detecting means when the brush lower end detecting means is at a height position away from the conveying surface of the conveyor. When the detecting means detects the lower end of the brush member, the height position becomes a height obtained by adding the height of the brush lower end detecting means from the conveying surface of the conveyor to the height detected by the conveyor height detecting means. Alternatively, the height position obtained by adding the offset amount determined at this height position is set as the origin position, and the elevating drive source is controlled so as to raise and lower the conveyor to this origin position. It may be.

If it is the said structure, if a brush lower end detection means detects the lower end of a brush member, a raising / lowering drive source will be driven by control of an raising / lowering control means, and a conveyor will be raised / lowered to an origin position. The origin position is, for example, the height position of the conveyor conveyance surface. In this case, the origin position is obtained by adding the height of the brush lower end detection means from the conveyor conveyance surface to the height detected by the conveyor height detection means. The origin position may be the height position of the upper surface of the workpiece. In this case, the origin position is obtained by adding the height of the brush lower end detection means from the conveyor conveyance surface to the height detected by the conveyor height detection means, and adding a predetermined offset amount. . The offset amount is usually the thickness of the workpiece. In addition to the thickness of the workpiece, the offset amount may include an adjustment amount that adjusts the positional relationship between the upper surface of the workpiece and the lower end of the brush member so that the lower end of the brush member hits the upper surface of the workpiece, for example.
Thus, by raising and lowering the conveyor, it is possible to automatically adjust the conveyor height associated with the change of the processing origin .
A deburring device according to a second aspect of the present invention includes a conveyor for horizontally conveying a work having a burr formed on an upper surface thereof on a conveying surface, a deburring head disposed above the conveyor, A relative height adjusting mechanism for adjusting a relative height of the deburring head with respect to a conveyor, the deburring head including at least one roll-shaped brush member rotatable around a horizontal brush axis, and the brush A pivot support member that pivotably supports the member around a pivot axis in the vertical direction, and the relative height adjustment mechanism includes a lift support means that supports the conveyor so that the conveyor can be lifted and a lift that moves the conveyor up and down. A light source / receiver type brush lower end detecting means provided on a frame of the conveyor and capable of detecting the lower end of the brush member, and the brush lower end detecting means. A lifting control means for controlling the lifting drive source based on detection of the lower end of the brush member, and the relative height adjusting mechanism detects the height of the conveyor with respect to a predetermined reference height. And the brush lower end detecting means is at a height position away from the conveying surface of the conveyor, and the elevating control means, when the brush lower end detecting means detects the lower end of the brush member, The height detected by the conveyor height detection means is added to the height position obtained by adding the height of the brush lower end detection means from the conveying surface of the conveyor, or an offset amount determined at this height position is added. The raised position is set as the origin position, and the elevating drive source is controlled so that the conveyor is raised and lowered to the origin position.

Deburring apparatus of the first invention in this inventions comprises a conveyor for conveying horizontally placed burr the work formed on the upper surface on the conveying surface, and deburring head disposed above the conveyor, A relative height adjusting mechanism that adjusts a relative height of the deburring head with respect to the conveyor, and the deburring head includes at least one roll-shaped brush member that is rotatable about a horizontal brush axis, A swivel support member that swivels a brush member around a swivel axis in the vertical direction, and the relative height adjustment mechanism includes a lift support means that supports the conveyor or the deburring head to be lifted and lowered. A light-emission-receiving type light source that is provided on a frame of the conveyor and capable of detecting the lower end of the brush member. Since the lower edge detecting means and the raising / lowering control means for controlling the raising / lowering drive source based on the detection of the lower edge of the brush member by the brush lower edge detecting means are provided, the relative height of the brush member with respect to the conveyor can be automatically adjusted. , Variation in adjustment is suppressed, and adjustment work is easy.

In the brush lower end detecting means, the light projecting part and the light receiving part are on both sides of the conveyor transport path, the opposing direction of the light projecting part and the light receiving part is parallel to the conveyor transport surface and the conveyor because it is the arrangement that diagonally to the transport direction, the light projecting unit and a light receiving portion, not obstruct the conveyance of the workpiece by the conveyor, fewer restrictions on the installation.

The raising / lowering support means supports the conveyor so as to be raised and lowered, and the raising / lowering driving source raises and lowers the conveyor, and the relative height adjusting mechanism is configured to move the conveyor relative to a predetermined reference height. Conveyor height detecting means for detecting the height is provided, the brush lower end detecting means is at a height position away from the conveying surface of the conveyor, and the elevating control means is configured such that the brush lower end detecting means is connected to the brush. When the lower end of the member is detected, a height position that is a height obtained by adding the height from the conveying surface of the conveyor of the brush lower end detecting means to the height detected by the conveyor height detecting means, or this height If the height position obtained by adding the offset amount determined for the position is set as the origin position, and the elevation drive source is controlled to raise and lower the conveyor to this origin position, the machining origin is changed. It allows automatic adjustment of the conveyor height associated with.
A deburring device according to a second aspect of the present invention includes a conveyor for horizontally conveying a work having a burr formed on an upper surface thereof on a conveying surface, a deburring head disposed above the conveyor, A relative height adjusting mechanism for adjusting a relative height of the deburring head with respect to a conveyor, the deburring head including at least one roll-shaped brush member rotatable around a horizontal brush axis, and the brush A pivot support member that pivotably supports the member around a pivot axis in the vertical direction, and the relative height adjustment mechanism includes a lift support means that supports the conveyor so that the conveyor can be lifted and a lift that moves the conveyor up and down. A light source / receiver type brush lower end detecting means provided on a frame of the conveyor and capable of detecting the lower end of the brush member, and the brush lower end detecting means. A lifting control means for controlling the lifting drive source based on detection of the lower end of the brush member, and the relative height adjusting mechanism detects the height of the conveyor with respect to a predetermined reference height. And the brush lower end detecting means is at a height position away from the conveying surface of the conveyor, and the elevating control means, when the brush lower end detecting means detects the lower end of the brush member, The height detected by the conveyor height detection means is added to the height position obtained by adding the height of the brush lower end detection means from the conveying surface of the conveyor, or an offset amount determined at this height position is added. The raised position is set as the origin position, and the elevating drive source is controlled so that the conveyor is raised and lowered to the origin position. For this reason, adjustment of the relative height of the brush member with respect to the conveyor can be automatically performed, variation in adjustment is suppressed, and adjustment work is easy. Moreover, when the relative height of the brush member with respect to the conveyor is adjusted by moving the conveyor up and down, the conveyor height can be automatically adjusted along with the change of the processing origin.

(A) is the figure which added the block diagram of a control system to the fracture | rupture front view of the mechanism part of the deburring apparatus concerning one Embodiment of this invention, (B) is the part of the fracture | rupture front view which shows the mechanism part in a different cross section FIG. It is a fracture | rupture side view of the mechanism part of the same deburring apparatus. It is a top view of the mechanism part of the deburring apparatus. (A) is a perspective view of the brush member of the deburring device, and (B) is an enlarged perspective view of the brush bristles. It is explanatory drawing of the raising / lowering height of a conveyor. It is a top view of the principal part of the deburring apparatus concerning different embodiment of this invention. It is a top view of the principal part of the deburring apparatus concerning further different embodiment of this invention. It is a top view of the principal part of the deburring apparatus concerning further different embodiment of this invention. It is a top view of the principal part of the deburring apparatus concerning further different embodiment of this invention. It is a top view of the principal part of the deburring apparatus concerning further different embodiment of this invention.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1 to FIG. 3, the deburring device includes a conveyor 1 on which a work W is placed and transported horizontally, a deburring head 2 disposed above the conveyor 1, and the deburring with respect to the conveyor 1. And a relative height adjusting mechanism 3 that adjusts the relative height of the picking head 2. The conveyor 1, the deburring head 2, and the relative height adjusting mechanism 3 are assembled to a machine frame 4 having a rectangular parallelepiped shape that is long in the vertical direction. Covers 5 are attached to the front surface, back surface, and left and right side surfaces of the machine frame 4 except for some openings (not shown).

  The conveyor 1 is installed horizontally through the machine casing 4 in the front-rear direction. The conveyor 1 is a belt conveyor in which an endless conveying belt 13 is hung on a driven roller 11 and a driving roller 12 disposed at both front and rear ends of a conveyor frame 10, and the upper surface of the conveying belt 13 is a conveying surface 13a. The rotation of the conveying motor 14 is transmitted to the driving roller 12 via the transmission device 15 using an endless flexible member such as a belt or a chain, and the conveying belt 13 is operated. In the forward rotation state, the conveyance surface 13a moves from the front to the rear. Note that transmission devices 31, 36, 39, and 51, which will be described later, are also transmission devices using endless flexible members such as belts and chains.

  The deburring head 2 includes a roll-shaped brush member 20 that is rotatable around a horizontal brush axis O1. As shown in FIG. 4A, the brush member 20 is provided by fitting a cylindrical body 22 on the outer periphery of the central shaft 21 whose center coincides with the brush axis O1, and on the outer periphery of the cylindrical body 22. Innumerable brush hairs 23 are implanted radially, and the outer shape is a roll. As shown in FIG. 4 (B), each bristle 23 is obtained by attaching abrasive grains 23b to the surface of a strip 23a made of cloth or paper. Each brush bristle 23 is implanted in the cylindrical body 22 so that the width direction of the strip-shaped piece 23a becomes the circumferential direction, in other words, the direction perpendicular to the axial direction of the central axis 21. . It should be noted that dripping, bending, twisting, or the like may occur randomly at the tip of the strip-shaped piece 23a that becomes the outer peripheral portion of the roll-shaped brush member 20.

  As shown in FIG. 1A, the brush member 20 is rotatable about a horizontal brush axis O1 by supporting both ends of the central shaft 21 on the turning support member 26 via bearings 25, respectively. It has become. The turning support member 26 has a shape in which the lower part is divided into two parts, and the upper end is supported by the upper frame part 4a of the machine frame 4 via the thrust bearing 27 so as to be turnable around the turning axis O2 in the vertical direction. The central shaft 21 of the brush member 20 is rotatably supported by the lower end.

  The brush member 20 is rotated around the brush axis O <b> 1 by the rotational power of the brush rotation motor 30 (FIG. 3) installed on the back surface of the machine casing 4. Specifically, the rotation of the brush rotation motor 30 is transmitted to the turning input shaft 32 of the turning support member 26 via the transmission device 31 (FIG. 3), and the turning input shaft 32 is connected to the pair of bevel gears 33 and 34. It is transmitted to the horizontal transmission shaft 35 and further transmitted from the horizontal transmission shaft 35 to the central shaft 21 of the brush member 20 via the transmission device 36.

  Further, the turning support member 26 is turned around the turning axis O2 by the rotational drive of the turning motor 38 (FIG. 3) installed on the back surface of the machine casing 4. Specifically, the rotation of the turning motor 38 is transmitted to the pulley 39a fixed to the upper end of the turning support member 26 via the transmission device 39 (FIG. 3). The pulley 39 a is a component of the transmission device 39.

  In this embodiment, the relative height adjusting mechanism 3 is configured to adjust the relative height of the deburring head 2 with respect to the conveyor 1 by moving the conveyor 1 up and down. As shown in FIG. 1 (A) and FIG. 2, the conveyor frame 10 is provided with hanging members 41 at a total of four locations, two at the front and rear of each left and right frame portion 10a, and fixed to each of the hanging members 41, respectively. The elevating body 42 is slidably fitted to a vertical elevating guide 43 provided in the machine casing 4. The elevating body 42 and the elevating guide 43 constitute an elevating support means 44, and the elevating support means 44 supports the conveyor 1 so as to be able to move up and down.

  Further, as shown in FIG. 1B and FIG. 2, a horizontal member 45 is provided between each of the left and right frame portions 10 a so as to span between a pair of front and rear hanging members 41. A ball nut 46 having a vertical screw hole is fixedly provided. Screw shafts 47 are screwed into the left and right ball nuts 46, and the ball nut 46 and the screw shaft 47 constitute a ball screw mechanism 48.

  The screw shaft 47 of the ball screw mechanism 48 is rotationally driven by an elevating drive source 50 composed of a servo motor installed at the lower part of the machine frame 4. That is, the rotation of the lifting drive source 50 is transmitted to the left and right transmission shafts 52 rotatably supported by the machine frame 4 by the transmission device 51, and the left and right ends of the left and right transmission shafts 52 are transferred to the left and right screw shafts 47. It is transmitted via bell gears 53 and 54.

When the rotational drive source 50 is rotationally driven, the left and right screw shafts 47 are rotated. The rotation of the screw shaft 47 is converted into a vertical movement by the ball screw mechanism 48, and the conveyor 1 moves up and down. As shown in FIG. 5, the lifting height level H of the conveyor 1, the height h with respect to a reference height level H ₀ defined, is detected in the conveyor height detecting means 55 (FIG. 1). The reference height level H ₀ is, for example, the position of the lowest end of the range in which the conveyor 1 can be raised and lowered. The conveyor height detection means 55 may measure the lifting / lowering amount of the conveyor 1 or may calculate from the output amount of the lifting / lowering drive source 50.

  As shown in FIGS. 1 to 3, the deburring device is provided with a light projecting / receiving type brush lower end detecting means 60 capable of detecting the lower end of the brush member 20. The brush lower end detection means 60 is, for example, a photoelectric switch, and includes a light projecting unit 60a and a light receiving unit 60b installed on each of the left and right frame units 10a of the conveyor frame 10, respectively. The light projecting unit 60a and the light receiving unit 60b are arranged so as to be shifted from each other in the front-rear direction at a height position separated from the transport surface 13a of the conveyor 1 by a predetermined distance a (FIG. 5). Specifically, in the case of this embodiment, the light projecting unit 60a is arranged at the position of the front end of the machine frame 4 in a plan view in the left and right frame unit 10a, and the light receiving unit 60b is a plan view in the right and left frame unit 10a. The machine frame 4 is arranged at the rear end position. That is, the light projecting unit 60a and the light receiving unit 60b are on both sides of the conveyance path of the conveyor 1, and the facing direction of the light projecting unit 60a and the light receiving unit 60b is parallel to the conveyor conveyance surface 13a and the conveyor. It is the arrangement which becomes diagonal to the conveyance direction of 1.

  The detection signal of the light receiving portion 60b of the brush lower end detection means 60 is transmitted to the elevation control means 61 (FIG. 1). The raising / lowering control means 61 is of a numerical control type by a computer, and at the time of periodic brush wear adjustment or adjustment of the processing origin accompanying change of the plate thickness of the workpiece W, the detection signal of the light receiving unit 60b and the offset The lift drive source 50 is controlled based on a signal designating an offset amount input from the amount input means 62 (FIG. 1). The amount of offset here refers to the amount by which the conveyor 1 is raised and lowered according to the thickness of the workpiece W, and the amount by which the conveyor 1 is raised and lowered in order to adjust the positional relationship between the upper surface of the workpiece W and the lower end of the brush member 20. It is. This offset amount is predetermined for each workpiece W. Therefore, generally, the offset amount is given to the elevation control means 61 from a machining program (not shown). In this case, the machining program becomes the offset amount input means 62. The offset amount input means 62 may be provided separately from the machining program.

  Specifically, the elevation control means 61 controls the elevation drive source 50 as follows. That is, the conveyor 1 is once positioned below the time of operation, and the conveyor 1 is raised from that position. When the brush lower end detection means 60 detects the lower end of the brush member 20, a height obtained by adding the height a from the conveying surface 13a of the brush lower end detection means 60 to the height h detected by the conveyor height detection means 55 at that time. Is defined as the origin position. And the raising / lowering drive source 50 is controlled so that the conveyor 1 may be raised / lowered to this origin position. At the same time, the raising / lowering drive source 50 is controlled so that the conveyor 1 is raised and lowered by the offset amount given from the offset amount input means 62. The raising / lowering of the conveyor 1 to the origin position and the raising / lowering of the conveyor 1 corresponding to the offset amount are actually performed simultaneously, not separately.

  The operation of the deburring device having this configuration will be described. The height of the conveyor 1 is adjusted so that the deburring head 2 has an appropriate relative height corresponding to the processing conditions such as the thickness of the workpiece W with respect to the conveyor 1. While the brush member 20 is rotated around the brush axis O1, the deburring head 2 is rotated around the rotation axis O2. In this state, the work 1 is placed on the transport surface 13a of the conveyor 1 and transported horizontally by the conveyor 1. The lower end of the brush member 20 comes into contact with the workpiece W to be conveyed, and the burrs formed on the upper surface of the workpiece W are removed. By rotating the brush member 20, each part of the brush member 20 in the direction of the brush axis O1 contacts the upper surface of the workpiece W evenly, and the burrs are removed in a good state.

  Since each bristle 23 of the brush member 20 is worn and shortened with the operation, for example, the conveyor 1 is periodically raised by the amount of wear of the brush bristle 23, and the relative height of the deburring head 2 with respect to the conveyor 1 is increased. adjust. Also, when changing the processing conditions such as the plate thickness of the workpiece W, the relative height of the deburring head 2 with respect to the conveyor 1 is adjusted. As described above, the adjustment of the relative height is performed by detecting the lower end of the brush member 20 by the light emitting / receiving type brush lower end detecting means 60, and the elevation control means 61 controls the elevation drive source 50 based on the detection. This is done automatically. Therefore, variation in relative height adjustment can be suppressed. Further, the operator only has to operate a switch for starting adjustment of the relative height, for example, and does not have to check the relative height by putting a body inside the cover 5 of the deburring device as in the prior art. Therefore, adjustment work is easy.

  Since the bristle 23 of the brush member 20 does not have rigidity, the brush bristle 23 is not in a straight state when positioned upward or laterally, but when positioned downward with respect to the brush axis O1. It is in a straight state. Since the brush lower end detection means 60 detects the lower end of the brush 20 positioned below the brush axis O1, the shortening of the brush hair is accurately reflected in the detection result. Therefore, the relative height can be adjusted with high accuracy.

  Since the light projecting unit 60a and the light receiving unit 60b of the brush lower end detection unit 60 are arranged on both sides of the conveyance path of the conveyor 1, the conveyance of the workpiece W by the conveyor 1 is not obstructed. Further, the light projecting unit 60a and the light receiving unit 60b are arranged so that the facing direction of the light projecting unit 60a and the light receiving unit 60b is parallel to the conveyor transport surface 13a and oblique to the transport direction of the conveyor 1. Therefore, there are few restrictions on installation of the light projecting unit 60a and the light receiving unit 60b, and the design is easy.

  In this embodiment, the conveyor 1 is moved up and down to adjust the relative height of the deburring head 2 with respect to the conveyor 1. However, the deburring head 2 is moved up and down to adjust the relative height of the deburring head 2 with respect to the conveyor 1. It may be.

Although the above embodiment has one brush member 20, a plurality of brush members 20 may be provided.
In the example of FIG. 6, the deburring head 2 is provided with two brush members 20A that are rotatable around the brush axis O1A and two brush members 20B that rotate around the brush axis O1B. The brush members 20A and 20B are supported by a turning support member (not shown) so as to be turnable around the turning axes O2A and O2B arranged along the conveying direction of the conveyor 1, respectively. Each of the brush members 20A and 20B rotates around the brush axis O1B when driven by a rotational drive source (not shown), and rotates around the pivot axes O2A and O2B when driven by a rotary drive source (not shown). .

  The brush lower end detection means 60 is such that the direction in which the light projecting unit 60a and the light receiving unit 60b face each other is parallel to the conveyor transport surface 13a and oblique to the transport direction of the conveyor 1, and the light projecting unit 60a has a pivot axis. The light receiving unit 60b is located on the upstream side in the transport direction with respect to the pivot axis O2A. When the light projecting unit 60a and the light receiving unit 60b are arranged in this way, the lower end of the brush member having the longest bristle brush 23 is detected from among all the brush members 20A and 20B by one set of the light projecting unit 60a and the light receiving unit 60b. can do. Thereby, the conveyor 1 can be raised / lowered according to the brush member with the longest bristle 23 at the time of adjustment of a process origin or adjustment with respect to brush wear.

  The example of FIG. 7 has two brush members 20C and 20D arranged in parallel. The brush members 20C and 20D rotate around the brush axis O1C and O1D, respectively, and turn around the common turning axis O2.

  In the example of FIG. 8, the brush members 20C and 20D in the example of FIG. 7 are each divided into two. Similarly to the above, each brush member 20C and 20D rotates around the brush axis O1C and O1D, respectively. , Swivel around a common swivel axis O2.

  The example of FIG. 9 has four brush members 20E, 20E, 20F, and 20F radially in plan view. The pair of brush members 20E rotate around the brush axis O1E, and the pair of brush members 20F rotate around the brush axis O1F. Each brush member 20E, 20E, 20F, 20F revolves around a common revolving axis O2.

  The example of FIG. 10 has six brush members 20G, 20G, 20H, 20H, 20I, and 20I radially in plan view. The pair of brush members 20G rotate around the brush axis O1G, the pair of brush members 20H rotate around the brush axis O1H, and the pair of brush members 20I rotate around the brush axis O1I. Each brush member 20G, 20G, 20H, 20H, 20I, 20I revolves around a common revolving axis O2.

  7 to 10, the brush lower end detecting means 60 includes a light projecting unit 60 a and a light receiving unit 60 b on both sides of the conveyance path of the conveyor 1, and the light projecting unit 60 a and the light receiving unit 60 b. Are arranged parallel to the conveyor transport surface 13a and oblique to the transport direction of the conveyor 1. Accordingly, the light projecting unit 60a and the light receiving unit 60b do not interfere with the conveyance of the workpiece W by the conveyor 1, and there are few restrictions on installation of the light projecting unit 60a and the light receiving unit 60b, and the design is easy.

DESCRIPTION OF SYMBOLS 1 ... Conveyor 2 ... Deburring head 3 ... Relative height adjustment mechanism 10 ... Conveyor frame 13 ... Conveying belt 13a ... Conveying surface 20, 20A-20I ... Brush member 23 ... Brush bristles 26 ... Turning support member 44 ... Lifting support means 50 ... Lifting drive source 60 ... Brush lower end detecting means 60a ... Light projecting part 60b ... Light receiving part 61 ... Lifting control means O1, O1A to O1I ... Brush axis O2, O2A, O2B ... Turning axis W ... Workpiece

Claims (3)

A conveyor for horizontally transferring a work having a burr formed on the conveying surface, a deburring head disposed above the conveyor, and a relative height of the deburring head with respect to the conveyor is adjusted. With a relative height adjustment mechanism,
The deburring head includes at least one roll-shaped brush member that is rotatable about a horizontal brush axis, and a swivel support member that supports the brush member so as to swivel about a vertical swivel axis. ,
The relative height adjustment mechanism has a lifting support means for supporting the conveyor or the deburring head so as to be movable up and down, and a lifting drive source for lifting and lowering the conveyor or the deburring head,
A light emitting and receiving type brush lower end detecting means provided on a frame of the conveyor and capable of detecting the lower end of the brush member, and raising and lowering controlling the raising and lowering driving source based on detection of the lower end of the brush member by the brush lower end detecting means. set and a control means,
In the brush lower end detecting means, the light projecting part and the light receiving part are on both sides of the conveyor transport path, the opposing direction of the light projecting part and the light receiving part is parallel to the conveyor transport surface and the conveyor deburring device being disposed and that diagonally to the transport direction. The raising / lowering support means supports the conveyor so as to be raised and lowered, and the raising / lowering driving source raises and lowers the conveyor, and the relative height adjusting mechanism is configured to move the conveyor relative to a predetermined reference height. Conveyor height detection means for detecting the height, the brush lower end detection means is at a height position away upward from the conveyor surface of the conveyor,
When the brush lower end detection means detects the lower end of the brush member, the elevation control means has a height from the conveyor conveying surface of the conveyor at the height detected by the conveyor height detection means. The height position that is the height obtained by adding or the height position obtained by adding the offset amount determined at this height position as the origin position, and the elevation drive source is controlled so that the conveyor is raised and lowered to the origin position claim 1 Symbol placement deburring device. A conveyor for horizontally transferring a work having a burr formed on the conveying surface, a deburring head disposed above the conveyor, and a relative height of the deburring head with respect to the conveyor is adjusted. With a relative height adjustment mechanism,
The deburring head includes at least one roll-shaped brush member that is rotatable about a horizontal brush axis, and a swivel support member that supports the brush member so as to swivel about a vertical swivel axis. ,
The relative height adjustment mechanism has a lifting support means for supporting the conveyor so as to be lifted and lowered, and a lifting drive source for lifting the conveyor.
A light emitting and receiving type brush lower end detecting means provided on a frame of the conveyor and capable of detecting the lower end of the brush member, and raising and lowering controlling the raising and lowering driving source based on detection of the lower end of the brush member by the brush lower end detecting means. Control means,
The relative height adjusting mechanism has conveyor height detecting means for detecting the height of the conveyor with respect to a predetermined reference height, and the brush lower end detecting means is a height away from the conveying surface of the conveyor. In position
When the brush lower end detection means detects the lower end of the brush member, the elevation control means has a height from the conveyor conveying surface of the conveyor at the height detected by the conveyor height detection means. The height position that is the height obtained by adding or the height position obtained by adding the offset amount determined at this height position as the origin position, and the elevation drive source is controlled so that the conveyor is raised and lowered to the origin position Deburring device.

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