TWI499484B - Nozzle handling device - Google Patents

Description

Bead processing device

The present invention relates to a bead processing apparatus.

Patent Document 1 discloses a bead processing apparatus including a centrifugal projector in an upper portion and a lower portion of a casing.

Patent Document 1: Japanese Patent No. 2868169

However, in the bead processing apparatus described in Patent Document 1, when the projection material is projected from each of the centrifugal projectors, the projection material from the centrifugal projector provided in the upper portion of the casing and the centrifugal material from the lower portion of the casing are provided. The projection material of the projector is offset, and the projection efficiency is reduced.

The present invention has been made in view of the above problems, and an object thereof is to provide a bead processing apparatus capable of improving projection efficiency.

In order to solve the above problems, the bead processing apparatus according to the first aspect of the invention includes: a holder capable of rotating and slidable to hold a workpiece on a rotation axis; and a pair of centrifugal projectors each having a rotatable impeller The rotation axes of the impellers are parallel to each other and are disposed offset from each other in the rotation axis direction of the impeller, and can project the projection material in parallel with the workpiece along with the rotation of the impellers.

In the bead processing apparatus, the holder rotates and slides while the workpiece is held on the rotation axis of the holder. Next, the projections are projected from the respective centrifugal projectors to the workpiece by the impeller rotation of the pair of centrifugal projectors, thereby processing the workpiece.

Here, in a pair of centrifugal projectors, the rotation axes of the respective impellers are parallel to each other, and are arranged offset from each other in the direction of the rotation axis of the impeller. Next, the projecting material is projected in parallel from the pair of centrifugal projectors toward the workpiece. Therefore, even when the projection material is projected from a pair of centrifugal projectors, it is possible to suppress the projection material of the centrifugal projector from one side from being offset by the projection material of the centrifugal projector from the other side, thereby enabling Increased projection efficiency.

According to a second aspect of the invention, in a bead processing apparatus according to the first aspect of the invention, the bead processing apparatus further includes a casing, wherein the casing is disposed on the upper upper wall and the holder is disposed on the holder a side wall; one of the pair of centrifugal projectors is disposed on the upper wall to project the projection material downward; and the other of the pair of centrifugal projectors is disposed on the side wall to move the projection material toward Cast below.

According to this bead processing apparatus, since the pair of centrifugal projectors are provided on the upper wall and the side walls, for example, even if the workpiece has a complicated shape, it can be matched (the projection material can be appropriately projected to the workpiece). Moreover, a pair of centrifugal projectors can project the projecting material downward. Therefore, in the case where the projection material is projected from a pair of centrifugal projectors, since the projection material can be accelerated by the action of gravity, the projection efficiency can be further improved.

According to a third aspect of the invention, in the bead processing apparatus of the first aspect or the second aspect, the pair of centrifugal projectors are arranged to project a projection material from the impellers in a fan shape. The extending direction of the holder is orthogonal to the sliding direction and the rotation axis direction of the holder.

According to the bead processing apparatus, the pair of centrifugal projectors are arranged such that the projection material projected from the respective impellers in a fan shape is expanded in the holder in the direction in which the projections are perpendicular to the sliding direction and the rotation axis direction of the holder. Therefore, compared with the case where the above-described expansion direction and the sliding direction are parallel, even if the workpiece is slid, the number of projection materials projected to the position deviated from the workpiece can be reduced (the waste of the projection material can be suppressed).

According to a third aspect of the invention, in the bead processing apparatus of the third aspect of the invention, the pair of centrifugal projectors are arranged to be orthogonal to a sliding direction and a rotation axis direction of the holder, respectively. When viewed in the direction, the rotating surface of each of the impellers is inclined at a predetermined angle with respect to the rotation axis of the holder.

According to the bead processing apparatus, the pair of centrifugal projectors are arranged such that the rotation faces of the respective impellers are inclined at a predetermined angle with respect to the rotation axis of the holder when viewed from a direction orthogonal to the sliding direction of the holder and the direction of the rotation axis. Therefore, since the projection material is projected onto the workpiece from the direction in which the rotation axis of the holder is inclined, even if the workpiece has a side or a shadow portion, the projection material can be projected on the portion, and the projection material can be projected onto the workpiece. A wide range.

The bead processing apparatus of the invention according to the first aspect of the invention, further comprising: a rotation driving unit that rotates the holder; and a sliding driving unit that slides the holder; And a control unit that drives the slide drive unit to stop the holder at a plurality of stop positions in the sliding direction, and when the holder stops at each of the stop positions, drives the rotation drive unit to drive the holder The rotation is performed and the aforementioned pair of centrifugal projectors are actuated to project the projecting material.

According to the bead processing apparatus, since the projection material can be projected on the workpiece that rotates while the holder is stopped at the plurality of stop positions in the sliding direction, projection unevenness can be suppressed.

According to a third aspect of the invention, in the bead processing apparatus of the first to fifth aspects, the pair of centrifugal projectors have the same configuration; and the pair of centrifugal projectors are controlled to Each of the impellers is rotated at the same number of revolutions as a control unit.

According to this bead processing apparatus, since the pair of centrifugal projectors have the same configuration and each of the impellers rotates at the same number of revolutions, the apparatus can be simplified and the cost can be reduced.

As detailed above, the projection efficiency can be improved in accordance with the present invention.

First, a first embodiment of the present invention will be described.

Moreover, the arrow FR, the arrow UP, and the arrow LH shown in each figure show the front side, the upper side, and the left side of the bead processing apparatus 10 demonstrated below.

As shown in Fig. 1, the bead processing apparatus 10 according to the first embodiment of the present invention is provided with a bead device for removing rust which adheres to the metal workpiece 12, and includes a holder 14, a case 16, and a rotation. The drive unit 18, the slide drive unit 20, the pair of centrifugal projectors 22, 24, and the control unit 26.

The holder 14 is formed in a disk shape and is horizontal. A shaft portion 28 extending downward in the height direction of the bead processing apparatus 10 is formed at a central portion of the back side of the holder 14. In addition, the holder 14 is rotatably supported by the support portion 52 of the rotation driving unit 18, which will be described later, by the shaft portion 28, and can be rotated about the height direction of the bead processing device 10.

The casing 16 is formed in a box shape and houses the holder 14. The casing 16 has a plurality of side walls 32, 34, 36, 38 disposed on the upper wall 30 above the holder 14 and disposed on the side of the holder 14.

The rotation drive unit 18 is provided with a motor 40, a roller 42, and a rotating member 44 for causing the holder 14 to rotate. The motor 40 is fixed to an arm 50 of a slide driving unit 20 to be described later, and the roller 42 is fixed to a rotating shaft of the motor 40. The rotating member 44 is disposed on the same axis as the holder 14 and is fixed to the holder 14 . Further, the roller 42 is in contact with the rotating member 44 in a pressed state. Further, the rotation driving unit 18 is configured such that the holder 14 rotates together with the rotating member 44 after the roller 42 is rotated.

The slide drive unit 20 is provided with a motor 46, a rotary shaft 48, an arm 50, and a support portion 52 for sliding the holder 14 in the front-rear direction of the bead processing apparatus 10. The motor 46 and the rotating shaft 48 are disposed such that their rotation axes coincide with the height direction of the bead processing apparatus 10. Further, the motor 46 is fixed to the side wall 34, and the rotating shaft 48 is supported by the side wall 34 so as to be rotatable.

A gear 54 is provided on the rotating shaft of the motor 46. The gear 54 meshes with a gear 56 provided at the upper end of the rotating shaft 48. The arm 50 extends in the horizontal direction and has a length set to be longer than the radius of the holder 14. The base end portion of the arm 50 is fixed to the intermediate portion in the longitudinal direction of the rotary shaft 48, and the support portion 52 is provided at the front end portion of the arm 50. Further, in the bead processing apparatus 10, the arm 50 is swung by the rotation of the rotating shaft of the motor 46, and the holder 14 can be slid in the horizontal direction (reciprocally movable).

As shown in FIG. 2, the pair of centrifugal projectors 22 and 24 have the same configuration as the so-called centrifugal type in which the impeller 60 and the motor 62 are respectively provided. One of the centrifugal projectors 22 is provided on the inclined portion 30A formed on the side wall 32 side of the upper wall 30, and the other centrifugal projector 24 is provided on the upper wall 30 side of the side wall 32. Each of the impellers 60 is fixed to a rotating shaft of the motor 62.

Further, in the pair of centrifugal projectors 22, 24, the rotation axes A of the respective impellers 60 are parallel to each other, and are arranged offset from each other in the rotation axis direction of the impeller 60 (the offset amount is α). Further, the pair of centrifugal projectors 22, 24 are arranged such that the rotation faces B of the impellers 60 are viewed from a direction X (see FIG. 3) orthogonal to the sliding direction Y of the holder 14 and the rotation axis direction Z (see FIG. 3). (the surface perpendicular to the rotation axis of the impeller 60) is inclined with respect to the rotation axis C of the holder 14 to have angles of θ1 and θ2, respectively (refer to FIG. 2).

Further, as shown in FIG. 3, the bead processing apparatus 10 projects the projection material 68 in parallel with the workpiece 12 as the impellers 60 rotate. That is, the projection material 68 is projected from the one centrifugal projector 22 toward the first region S1 in the sliding region S of the holder 14, and from the other centrifugal projector 24 toward the sliding region S of the holder 14. A region S1 projects a projection material 68 with a second region S2 adjacent to the sliding direction Y of the holder 14.

Further, the pair of centrifugal projectors 22, 24 are arranged so as to extend in a fan shape from each of the impellers 60, and the projecting material 68 projected in the extending direction W of the holder 14 is respectively in the sliding direction Y and the rotation axis of the holder 14. The direction Z is orthogonal. Further, the pair of centrifugal projectors 22, 24 are disposed above the holder 14, and the projection material 68 can be projected downward.

Further, in the present embodiment, as shown in Fig. 2, for example, the inclination angles θ1 and θ2 of the rotation surface B of each of the impellers 60 of the pair of centrifugal projectors 22 and 24 and the rotation axis C are set to be larger than 0° and 35° or less, preferably 15°. Further, as shown in FIG. 4, the yaw angle θ3 of the arm 50 is set to 40° or less, preferably 22°, and the sliding range L of the holder 14 is set to 500 mm or less, preferably 300 mm. Further, the position of the holder 14 in the sliding direction is detected by the sensor (not shown) detecting the number of revolutions of the rotary shaft 48.

The control unit 26 shown in Fig. 1 and Fig. 2 is electrically connected to the motor 40 of the rotation driving unit 18, the motor 46 of the slide driving unit 20, and the motors 62 of the pair of centrifugal projectors 22 and 24, and is configured to control this. Wait for the action. The details of the operation of the control unit 26 will be described in conjunction with the operation of the subsequent bead processing apparatus 10.

Further, the bead processing apparatus 10 includes a screw conveyor 80, a bucket elevator 82, a separator 84, a bucket 86, and a mechanism for collecting the projection material projected onto the workpiece 12 to each of the centrifugal projectors 22, 24. Pair the introduction tubes 88, 90.

The screw conveyor 80 is disposed at a lower portion of the casing 16 so that the projected projecting material can be collected to the bucket elevator 82 side, and the bucket elevator 82 is connected to the screw conveyor 80, and can be recovered by the screw conveyor 80. The projecting material is held up to the top.

The separator 84 is connected to the upper portion of the bucket elevator 82 and has a flange for a dust collecting pipe (not shown). Further, the bucket 86 is disposed at the lower portion of the separator 84, and is configured to temporarily store the projection material, and the introduction pipes 88 and 90 are connected to the bucket 86 and the centrifugal projectors 22 and 24, respectively.

Next, a method of performing the bead blasting process on the workpiece 12 will be described in conjunction with the operation of the above-described bead processing apparatus 10.

First, as shown in FIG. 1 and FIG. 2, in a state in which the workpiece 12 is held on the rotation axis C of the holder 14, the motor 40 is controlled by the control unit 26 to rotate the holder 14. At this time, the holder 14 is maintained in a state of being stopped at the first stop position (the position shown by P1 in FIG. 4). Further, the control unit 26 controls the motor 62 to rotate the impeller 60, and the projection material is projected from the centrifugal projectors 22 and 24 to the workpiece 12. Thereby, the holder 14 starts the grinding of the workpiece 12 while being rotated while stopping at the first stop position.

Next, after the projection material is projected onto the workpiece 12 for a predetermined time, the control unit 26 controls the motor 46 to slide the holder 14 to the second stop position (the position shown by P2 in FIG. 4 and the first stop position and The intermediate position of the third stop position, which will be described later, is, for example, a position 150 mm apart from the first stop position when the sliding range of the holder 14 is 300 mm. Next, the holder 14 continues to sweep the workpiece 12 while being rotated while stopping at the second stop position.

Further, similarly to the above, after the projecting material is projected onto the workpiece 12 for a predetermined period of time, the control unit 26 controls the motor 46 to slide the holder 14 to the third stop position (the position shown by P3 in Fig. 4). Next, while the holder 14 is rotated while being stopped at the third stop position, the workpiece 12 is continuously swept.

On the other hand, after the projection material is projected onto the workpiece 12 in a state where the holder 14 is stopped at the third stop position, the control unit 26 controls the motor 46 to be driven in the opposite direction to slide the holder 14 to the same position. Second stop position. Next, the holder 14 continues to sweep the workpiece 12 while being rotated while stopping at the second stop position.

Further, similarly to the above, after the projecting material is projected onto the workpiece 12 for a predetermined period of time, the control unit 26 controls the motor 46 to slide the holder 14 to the first stop position. Then, while the holder 14 is rotated while stopping at the first stop position, the workpiece 12 is continuously swept.

Next, the bead processing apparatus 10 grinds the workpiece 12 by repeating the above steps a plurality of times. Further, in the above steps, the impeller 60 is rotated at the same number of revolutions. Further, the above method is an example, and various modifications can be made within the range in which the bead processing apparatus 10 can operate in addition to the above.

Next, the action and effect of the first embodiment of the present invention will be described.

As shown in Fig. 2, in the bead processing apparatus 10 according to the first embodiment of the present invention, a pair of centrifugal projectors 22, 24, the rotation axes A of the respective impellers 60 are parallel to each other, and are in the direction of the rotation axis of the impeller 60. Offset configuration. Then, the projecting material is projected in parallel from the pair of centrifugal projectors 22 and 24 toward the workpiece 12 (see FIG. 3). Therefore, even when the projection material is projected from the pair of centrifugal projectors 22, 24, it is possible to suppress the projection material from one of the centrifugal projectors 22 from the projection material from the other centrifugal projector 24. Pin, which can improve the efficiency of projection.

Further, since the pair of centrifugal projectors 22 and 24 are provided on the upper wall 30 and the side wall 32, for example, even if the workpiece 12 has a complicated shape, it can be matched (the projection material can be appropriately projected to the workpiece 12). Moreover, a pair of centrifugal projectors 22, 24 can project the projecting material downward. Therefore, in the case where the projection material is projected from the pair of centrifugal projectors 22, 24, since the projection material can be accelerated by the action of gravity, the projection efficiency can be further improved.

Further, as shown in FIG. 3, the pair of centrifugal projectors 22, 24 are arranged so as to extend in a fan shape from each of the impellers 60, and the projected projection material is projected in the extending direction W of the holder 14 and the sliding direction of the holder 14 respectively. Y and the axis of rotation axis Z are orthogonal. Therefore, for example, in the case where the expansion direction W and the sliding direction Y are parallel, even if the workpiece 12 is slid, the number of projection materials projected to the position deviated from the workpiece 12 can be reduced (the projection material can be suppressed). waste).

Further, as shown in FIG. 2, the pair of centrifugal projectors 22 and 24 are arranged so as to be viewed in a direction X (see FIG. 3) orthogonal to the sliding direction Y of the holder 14 and the rotation axis direction Z (see FIG. 3). The rotating surface B of the impeller 60 (the surface perpendicular to the rotational axis of the impeller 60) is inclined with respect to the rotation axis C of the holder 14 to have angles of θ1 and θ2, respectively. Therefore, since the projection material is projected onto the workpiece 12 from the direction in which the rotation axis C of the holder 14 is inclined, even if the workpiece 12 has a side or a shadow portion, the projection material can be projected on the portion, and the projection material can be projected. It is a wide range of workpieces 12.

Moreover, since the projection material can be projected to the workpiece 12 that rotates while the holder 14 is stopped at the plurality of stop positions in the sliding direction, projection unevenness can be suppressed.

Further, since the pair of centrifugal projectors 22 and 24 have the same configuration and each of the impellers 60 rotates at the same number of revolutions, the apparatus can be simplified and the cost can be reduced.

Next, a modification of the first embodiment of the present invention will be described.

In the above embodiment, the bead processing apparatus 10 is used as a shot blast apparatus, but can also be used as a shot peening apparatus.

Further, although the holder 14 is a so-called table type which is called from below, it may be a so-called suspension type which is suspended from above.

Further, although the control unit 26 is configured to stop the holder 14 at the three stop positions, the stop position may be three or more as long as it is plural.

Next, a second embodiment of the present invention will be described.

The bead processing apparatus 110 according to the second embodiment of the present invention shown in FIG. 5 to FIG. 7 includes a slide driving unit 120 instead of the above-described slide driving unit 20 (see FIG. 1).

The slide drive unit 120 has a motor 146, a bracket 148, a chain 150, a slider 152, and a pair of rails 154. The motor 146 is fixed to the lower wall of the casing 16, and a gear 156 is fixed to the rotating shaft. The bracket 148 is horizontally fixed in the front and rear directions of the bead processing apparatus 110, and is fixed to the slider 152.

The chain 150 is disposed along the lower portion of the bracket 148 and engages with the gear 156. The slider 152 supports the holder 14 to be self-rotating and slidably supported by the pair of rails 154. The pair of rails 154 are arranged in the left-right direction of the bead processing apparatus 110 and extend in the front-rear direction of the bead processing apparatus 110.

Further, in the slide driving unit 120, after the motor 146 is driven to rotate the gear 156, the slider 152 and the holder 14 slide together with the chain 150. Further, the position of the holder 14 in the sliding direction is detected by the sensor (not shown) detecting the sliding position of the slider 152. Further, the rotation driving portion 18 is fixed to the bracket 148, and the holder 14 is supported by the slider 152 to be rotatable.

According to the above configuration, the same operations as those of the bead processing apparatus 10 (see FIGS. 1 to 4) of the first embodiment of the present invention can be performed, and the same actions and effects can be exhibited.

The embodiment of the present invention has been described above, but the present invention is not limited to the above, and various modifications can be made without departing from the spirit and scope of the invention.

10,110. . . Bead processing device

12. . . Workpiece

14. . . Holder

16. . . Box

18. . . Rotation drive

20,120. . . Sliding drive

22,24. . . Centrifugal projector

26. . . Control department

30. . . Upper wall

32. . . Side wall

60. . . impeller

A. . . Rotation axis of the impeller

B. . . The rotating surface of the impeller (the plane perpendicular to the axis of rotation of the impeller)

C. . . Rotation axis of the holder

W. . . Projection material expands on the holder

X. . . The direction orthogonal to the sliding direction of the holder and the direction of the rotation axis

Y. . . Keep the sliding direction of the tool

Z. . . The axis of rotation of the holder

Fig. 1 is a front view of a bead processing apparatus according to a first embodiment of the present invention.

Figure 2 is a left side view of the bead processing apparatus shown in Figure 1.

Fig. 3 is a perspective view showing the arrangement relationship between one of the telecentric projector, the casing, and the holder shown in Fig. 1.

Fig. 4 is a plan view showing the sliding range of the holder shown in Fig. 1.

Fig. 5 is a front view showing a bead processing apparatus according to a second embodiment of the present invention.

Figure 6 is a left side view of the bead processing apparatus shown in Figure 5.

Fig. 7 is a plan view showing the sliding range of the holder shown in Fig. 5.

10. . . Bead processing device

12. . . Workpiece

14. . . Holder

16. . . Box

18. . . Rotation drive

20. . . Sliding drive

22,24. . . Centrifugal projector

26. . . Control department

28. . . Shaft

30. . . Upper wall

32, 34, 36, 38. . . Side wall

40. . . motor

42. . . Roller

44. . . Rotating member

46. . . motor

48. . . Rotary axis

50. . . arm

52. . . Support

54,56. . . gear

60. . . impeller

80. . . Screw conveyor

82. . . Bucket lift

84. . . Separator

86. . . Fight

88,90. . . Inlet tube

Claims (7)

A bead processing device comprising: a holder capable of rotating and slidable to hold a workpiece on a rotation axis; and a pair of centrifugal projectors each having a rotatable impeller, wherein the rotation axes of the impellers are parallel to each other and to each other The impeller is arranged offset in the direction of the rotation axis, and can project the projection material in parallel with the workpiece according to the rotation of the impellers; the pair of centrifugal projectors are disposed in a sliding direction and a rotation axis from the holder respectively When viewed in a direction orthogonal to the direction, the rotating surfaces of the impellers are inclined at a predetermined angle with respect to the rotation axis of the holder. The bead processing apparatus according to claim 1, further comprising a case having a side wall disposed on the upper upper wall and the side of the holder opposite to the holder; the pair of centrifugal projectors One of the pair of centrifugal projectors is disposed on the side wall to project the projecting material downward, and one of the pair of centrifugal projectors is disposed on the side wall. The bead processing apparatus according to claim 1 or 2, wherein the pair of centrifugal projectors are arranged such that the projection material projected from the impellers in a fan shape expands in a direction of the holder, respectively The sliding direction of the holder and the direction of the rotation axis are orthogonal. The bead processing apparatus according to claim 1 or 2, further comprising: a rotation driving unit that rotates the holder; a sliding drive unit that slides the holder; and a control unit that drives the slide drive unit to stop the holder at a plurality of stop positions in the sliding direction, and causes the holder to stop at each of the stop positions The rotation driving unit is driven to rotate the holder and to operate the pair of centrifugal projectors to project a projection material. The bead processing apparatus according to claim 3, further comprising: a rotation driving unit that rotates the holder; a sliding driving unit that slides the holder; and a control unit that drives the sliding driving unit to maintain the holding When the plurality of stop positions in the sliding direction are stopped, and the holder is stopped at each of the stop positions, the rotation driving unit is driven to rotate the holder and the pair of centrifugal projectors are actuated to project projection material. The bead processing apparatus according to claim 1 or 2, wherein the pair of centrifugal projectors have the same configuration; and the control of controlling the pair of centrifugal projectors to rotate the respective impellers by the same number of revolutions unit. The bead processing apparatus according to claim 3, wherein the pair of centrifugal projectors have the same configuration, and the control unit that controls the pair of centrifugal projectors to rotate the impellers by the same number of revolutions.