JPH10225868A - Blast processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide complete blast processing even in the case where a product has an especially complicated form in a facility in which the product can be rotated within a vertical plane in a blasting chamber to be blast-processed. SOLUTION: When a clamp device 10 invades into one blasting material projecting station, rotation of a rotary plate 8 is temporarily stopped, a product is rotated within a vertical plane by drive of the clamp device 10, and blasting material is projected from one blasting material projecting device 1, where temporary stoppage of rotation of the rotary plate 8 at the blasting material projecting station is performed to be separated to twice or more for changing a product stop position to one blasting material projecting zone composed by projecting blasting material from one blasting material projecting device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method suitable for blasting a product having a complicated shape such as a cylinder block of an automobile engine.

[0002]

2. Description of the Related Art The present applicant has previously disclosed a blast facility for blasting a product such as a cylinder block of an automobile engine as disclosed in Japanese Patent Application Laid-Open No. 8-323628. A cabinet, a rotating plate arranged intermittently rotatable in a vertical plane with respect to the cabinet, and mounted on the rotating plate at substantially equal intervals along the periphery to grip the product. A plurality of clamping devices that rotate in a vertical plane in the cabinet has been proposed, but in this equipment, conventionally, the turning movement of the clamping device corresponds to the abrasive material projection device. After pausing at each position, the abrasive material is projected while rotating the product in the vertical plane by the clamp device, but the product is manufactured using cores of various shapes If it has a particularly complex shape have been, there are problems such as lack of integrity execution of blasting. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a blast processing method capable of performing complete blast processing even when a product has a particularly complicated shape.

[0003]

In order to achieve the above object, a blasting method according to the present invention comprises a cabinet constituting a blasting chamber and a rotatably disposed in a vertical plane with respect to the cabinet. Blasting the product using a blasting facility comprising a rotating plate and a plurality of clamping devices mounted along the periphery of the rotating plate and gripping the product and rotating in a vertical plane in the cabinet. Method, wherein the rotation of the rotary plate is temporarily stopped when the clamp device enters one abrasive material projection station,
Then, when the product is rotated in a vertical plane by driving the clamp device and the abrasive material is projected from one abrasive material projection device to blast the product, the rotating plate in the abrasive material projection station is blasted. By suspending the rotation twice or more, the stop position of the product with respect to one abrasive material projection area constituted by projecting abrasive material from one abrasive material projection device is determined. It is characterized by being changed.

[0004]

According to the blast treatment method of the present invention, the position of a product is changed in one abrasive material projection area formed by projecting abrasive material from one abrasive material projection device.
The portion of the product that has not been sufficiently polished by the blasting material is satisfactorily crushed, thereby preventing the occurrence of blasting unevenness in the blasting process.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described in detail based on FIG. As shown in FIG. 1 which is a front view, a rotating shaft 3 that penetrates right and left through a bearing 4 near a center of a cabinet 2 that includes a plurality of blasting material projecting devices 1 and 1 and forms a blasting room. The output shaft of a motor 7 with a speed reducer mounted on the support 5 is provided at the left end of the rotating shaft 3 via a shaft joint (not shown). Connected. A central portion of a disc-shaped rotating plate 8 is fixed to a position on the right outside surface of the cabinet 2 on the rotating shaft 3, and a left side surface of the rotating plate 8 and a portion inside the cabinet 2 on the rotating shaft 3 are connected to each other. Figure 2
As shown in FIG. 2, a plurality of partition plates 9 extending radially around the rotation shaft 3 are mounted, so that a plurality of rooms can be defined.

[0006] As shown in FIG. 2, partition members 2 a, 2 b, and 2 c constituting the plurality of rooms with a partition plate 9 are appropriately mounted on the inner surface of the cabinet 2. Further, a plurality of clamping devices 10 are mounted on the rotating plate 8 at substantially equal intervals along the periphery of the rotating plate 8, and the plurality of clamping devices 10 are partitioned by the partition plate 9. It is made up of In the upper and middle two rooms on the right side of the plurality of rooms defined by the partition plate 9 and the like, the plurality of blasting material projection devices 1 are disposed one by one. In addition, an abrasive material projection station is configured by projecting the abrasive material from the abrasive material projection device 1. An entrance and an exit (not shown) are provided on the left side wall of the cabinet 2 so that a product placing member 11 on which a product is placed can enter and exit and a rubber curtain type seal mechanism (not shown) is provided. It is provided.

As shown in FIG. 3, the clamp device 10 is provided on a support member 15 fixed to the rotating plate 8 via a bearing 16 so as to be rotatable in a vertical plane. The rotating member 18 with the support member 1
5, a motor 19 with a speed reducer installed on
A sprocket 21 fitted to the output shaft of the motor 1 and connected to the sprocket 17 via an endless roller chain 20;
8, a cylindrical connecting member 22 mounted concentrically on the left outer surface, a rotating body 23 mounted on the left end of the connecting member 22 and rotatable in a vertical plane, and two rotating bodies 23 A pair of leftwardly extending arms 25 which are mounted in a cantilevered state and are rotatable via a support shaft 24, and a stopper member pivotally supported by the left end of the arm 25 and capable of moving the product by a predetermined distance. Holding members 27 and 28 having 26
And a pair of detent members 29 having one end fixed to the lower holding member 28 and the other end pivotally supported by the rotating body 23, respectively, and one end fixed to the two support shafts 24. A link 30, a cylinder 31 as an actuator mounted on the rotating body 18, and a connecting rod 32 having one end connected to the link 30 with a pin and the other end connected to the tip of a piston rod of the cylinder 31. I have. As a result, the gripping members 27 and 28 are opened and closed via the arm 25 by the contraction operation of the cylinder 31.

[0010] In the above-described structure, the cylinder 31 of the upper left clamping device 10 in FIG. 2 is extended to open the gripping members 27 and 28, and the product is placed between the gripping members 27 and 28. The product W is carried in by the mounting member 11. Next, the cylinder 31 is contracted to close the gripping members 27 and 28, the product W is gripped by the gripping members 27 and 28, and then the product setting member 11 is retracted.
Next, the motor 7 is intermittently driven to rotate the rotary plate 8 intermittently via the rotary shaft 3, and the clamp device 10, the product W, etc. are intermittently rotated in the vertical plane via the rotary plate 8. ,
Then, the product W is rotated in a vertical plane by rotating the motor 19 of the clamp device 10. Under this condition,
The abrasive material projecting devices 1 and 1 are appropriately driven to project the abrasive material.

The operation of the rotating plate 8 and the clamping device 10 will be described in more detail. One of the plurality of clamping devices 10 and 10 projects one abrasive material with the rotation of the rotating plate 8 in the direction of the arrow. A state in which the rotation of the rotating plate 8 is temporarily stopped when entering the station, and then the product is rotated in a vertical plane by driving the clamp device 10 and the abrasive material is projected from one abrasive material projection device 10. Is maintained, and the rotation of the rotary plate 8 at the polishing material projection station is temporarily stopped twice or more. That is, as shown in FIGS. 4A, 4B, and 4C, the stopping of the product W with respect to one abrasive material projection region configured by projecting abrasive material from one abrasive material projection device 1. Change position. Thus, the abrasive material is projected by one abrasive material projecting apparatus 1, but the product W
Even if is manufactured using cores of various shapes and has a complicated shape, it is subjected to blast processing by receiving the projection of the abrasive material from a required direction. At the blasting material projecting station, the rotation speed of the rotary plate 8 for moving the clamp device 10 (the gripping members 27 and 28) to the positions shown in FIGS. The rotation speed of the rotating plate 8 at the time of entering and exiting one of the polishing material projecting stations is about 10 times slower.

When the product W is moved to the lower left position in FIG. 2 by the clamp device 10 by repeating the above blast processing, the product placing member 11 is moved into a position below the clamp device 10, and The cylinder 31 is extended to open the gripping members 27 and 28, the blasted product is placed on the product placing member 11 and carried out of the apparatus, and one cycle is completed.

In the above-described embodiment, the five chambers are constituted by the five partition members 9, 9 and the like, and the two blasting material projecting devices 1 are provided. Then, two partition members 9 may be provided to form two rooms, and one abrasive material projection device 1 may be provided.

In the above-described embodiment, the rotary plate 8 for moving the clamp device 10 (gripping members 27 and 28) to the positions shown in FIGS. The rotation speed is set to be about 10 times or more lower than the rotation speed of the rotating plate 8 when the clamp device 10 enters and exits one abrasive material projecting station. Omitting the temporary stop of the clamp device 10 and omitting the clamp device 10 in FIG.
During the movement from the position to the position C in FIG. 4 without stopping, the rotation speed of the rotating plate 8 is controlled by the rotation of the rotating plate 8 when the clamp device 10 moves in and out of one abrasive material projecting station. The speed may be about 20 times or more lower than the speed.

[0013]

As is apparent from the above description, according to the present invention, the rotation of the rotary plate is temporarily stopped when the clamp device enters one abrasive material projecting station, and then the product is vertically moved by driving the clamp device. In blasting the product by rotating in the plane and projecting the abrasive material from one abrasive material projection device, the suspension of the rotation of the rotary plate at the abrasive material projection station is divided into two or more times. By doing so, the stop position of the product with respect to one abrasive material projection area constituted by projecting abrasive material from one abrasive material projection device is changed, so that the abrasive material By changing the position of the product in the projection area, the part of the product that has not been sufficiently polished can be satisfactorily hit, preventing the blasting of the blasting process Excellent effects such as made can Rukoto is.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a blast facility for carrying out the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged partial cross-sectional view of a main part (clamping device) in FIG. 1;

FIG. 4 is an explanatory diagram showing a state in which a stop position of a product with respect to one abrasive material projection region configured by projecting abrasive material from one abrasive material projection device is changed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polishing material projection device 2 Cabinet 8 Rotating plate 10 Clamping device

Claims (2)

[Claims] 1. A cabinet 2 constituting a cleaning chamber, a rotating plate 8 rotatably arranged in a vertical plane with respect to the cabinet 2, and a rotating plate 8 mounted on the rotating plate 8 along the periphery thereof. A method for blasting a product by using a blast facility comprising a plurality of clamping devices 10 and 10 for gripping and rotating the product in a vertical plane in the cabinet 2, wherein the clamping device 10 comprises one The rotation of the rotary plate 8 is temporarily stopped when entering one of the blasting material projection stations, and then the product is rotated in a vertical plane by driving the clamp device 10 and the blasting is performed from one blasting material projection device 1. In projecting the material and blasting the product, by temporarily suspending the rotation of the rotating plate 8 in the blasting material projection station by dispersing it two or more times,
A blast processing method characterized by changing a stop position of the product with respect to one abrasive material projection region constituted by projecting abrasive material from one abrasive material projection device 1. 2. A cabinet 2 constituting a cleaning chamber, a rotating plate 8 rotatably arranged in a vertical plane with respect to the cabinet 2, and a rotating plate 8 mounted on the rotating plate 8 along the periphery thereof. A method for blasting a product using a blasting facility comprising a plurality of clamping devices 10 and 10 for gripping and rotating the product in a vertical plane in the cabinet 2, wherein the driving of the clamping device 10 is performed. When the product is rotated in a vertical plane and the abrasive is projected from one abrasive projection device 1 to blast the product, the rotating plate 8 is used.
And the rotating speed of the rotating plate 8 at this time is set to be lower than the rotating speed of the rotating plate 8 when the clamp device 10 enters and exits one abrasive material projecting station. A blast processing method characterized by the above-mentioned.