JP2009006402A - Shot-peening device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shot-peening device performing shot-peening according to an arrangement state of products to be treated, regardless of the kinds and numbers of stacked products to be treated such as gears, or regardless of the kind of a long product to be treated such as a shaft. <P>SOLUTION: This shot-peening device performs shot-peening of the products 2 to be treated having prescribed heights or shapes. The shot-peening device is provided with a rotation holding part 6 for rotatably holding the products 2 to be treated, a moving device 7 for moving the rotation holding part 6, a projection chamber 3 for surrounding the products 2 to be treated and the rotation holding part 6, an information acquisition means 8 for acquiring mode information on the products 2 to be treated, a decision means 10 for deciding whether or not the mode information on the products 2 to be treated is within a range where prescribed treatment can be performed, an abnormality alarm means 11 for giving an abnormality alarm when the mode information on the products 2 to be treated is not within a range where treatment can be performed, and projection material acceleration devices 4 and 5 for accelerating projection materials toward the products 2 to be treated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shot peening processing apparatus. More specifically, the present invention relates to a shot peening apparatus for peening a product to be processed, for example, a product to be processed such as a stacked gear or a long product to be processed such as a shaft.

  Conventionally, a shot peening processing apparatus that performs shot peening processing on a gear or the like is known. In this shot peening processing device, when shot peening processing is performed, gears to be processed are stacked and arranged, or shafts with various heights are arranged, and shots are made while raising and lowering the injection nozzle. Peening is performed (see Patent Document 1).

JP 2000-126929 A

  However, the required processing height may vary depending on the type of gears arranged in this apparatus, the number of stacked stages, and the type of shaft. Also, the shape (outer diameter of the position in the height direction as well as the height) as in the case of gears stacked out of standard or mixed with other model gears, various geared shafts and crankshafts, etc. May be different. For this reason, it is necessary to individually set the nozzle ascending / descending speed, stop position, time, and the like according to their arrangement state (states with different processing heights and states with different shapes), which hinders productivity.

  Therefore, the present invention has been made to solve the above problems, and depends on the type and number of stacked products to be processed such as gears or the type of long processed products such as shafts. It aims at providing the shot peening processing apparatus which performs the shot peening process according to the arrangement | positioning state of a to-be-processed product.

  A shot peening apparatus according to the present invention is a shot peening apparatus that performs a peening process on a product to be processed having a predetermined form, and a rotation holding unit that rotatably holds the product to be processed, and the rotation holding unit is moved. Whether the moving device, the projection chamber surrounding the product to be processed and the rotation holding unit, the information acquisition means for acquiring the shape information of the product to be processed, and the shape information of the product to be processed are within a predetermined processable range Determination means for determining whether or not, abnormal alarm means for issuing an abnormal alarm when the form information of the product to be processed is not within a processable range, and a projection material acceleration device for accelerating the projection material toward the product to be processed It is characterized by comprising.

When the form information is the height of the product to be processed, the information acquisition means is a height detection means for measuring the height of the product to be processed, and the determination means is a height determination means. Is preferred.
When the form information is the shape of the product to be processed, it is preferable that the information acquisition unit is a shape recognition unit that recognizes the shape of the product to be processed, and the determination unit is a shape determination unit.
Further, the projection material acceleration device is characterized by comprising an injection nozzle for injecting the projection material and a pressurized tank.

  According to the present invention, it is determined whether or not the form information (height or shape) of the product to be processed is within the processable range. If the product is out of the processable range and is out of the processable range, an abnormal alarm is issued to indicate that the process is impossible, so the operator does not decide the driving plan (conditions) every time the processed product is different. In addition, the shot peening process can be reliably performed and the productivity can be improved.

The shot peening treatment apparatus of the present invention can be applied as a shot peening treatment apparatus used for peening a product to be treated such as a gear or a geared shaft.
The shot peening apparatus according to the present invention will be described below with reference to the accompanying drawings. Embodiment 1
As shown in FIG. 1, the shot peening processing apparatus according to the first embodiment includes a shot blasting machine main body 1 for processing a product 2 to be processed, a hollow projection chamber 3 with a narrowed lower portion, A projection material accelerating unit A that projects the projection material into the projection chamber 3 is provided. This projection material acceleration means A is composed of a pressurized tank 4 connected to a compressed gas source and piping and storing the projection material together with the compressed gas, and an injection nozzle 5 connected to the pressurized tank 4 by the piping. . A processing table 6 as a rotation holding unit having a drive motor 6a as a rotation mechanism is installed inside the projection chamber 3. The processing table 6 is provided with a mechanism for holding the product to be processed. The processing table 6 is provided with an elevating device 7 as a moving device so that the processing table 6 can be moved up and down. The elevating device 7 includes an elevating motor 7a, and the elevating motor 7a is electrically connected to the motor controller 7b. In addition, in the projection table 3 in order to detect the stacking height (form information) of the product 2 to be processed having a predetermined height in which a plurality of gears are stacked on the processing table 6 and five in this embodiment. Is provided with a height detection means 8 as information acquisition means. The height determination means 10 is electrically connected to the height detection means 8 and the motor controller 7b, and the abnormality determination means 11 is electrically connected to the height determination means 10.
In addition, a bucket elevator 12 is installed in the lower part of the projection chamber 3, and a projection material storage hopper 13 is connected to and installed in the upper part of the bucket elevator 12 and the pressurized tank 4.

In FIG. 1, reference numeral 21 denotes a shield plate for protecting the lifting device 7 from the projection material. The lifting device 7 is not particularly limited in the present invention. For example, a device using a servo cylinder (not shown) or a shaft that is installed outside the projection chamber and is fixedly installed in the projection chamber. A structure in which a slide bearing is provided on the top as a holding of the processing table and the processing table is moved up and down can be used.
Further, the products to be processed having the predetermined height include products to be processed such as stacked gears and long products to be processed such as shafts.

After the processed product 2 is set on the processing table 6 by an operator or a loading / unloading device, the height of the processed products stacked in a stack is detected by the height detecting means 8. The detected height information of the product to be processed is transmitted to the height determination means 10, and it is determined whether it can be processed. Then, the height information is sent to the motor controller 7 b and the height processing table 6 where the product to be processed 2 exists. Goes up and down.
Here, when an abnormality occurs, such as when the product to be processed 2 is stacked above a predetermined height within a processable range, abnormality information is transmitted from the height determination means 10 to the abnormality alarm means 12 to issue an abnormality alarm.

The projected projection material is collected in the lower part of the projection chamber 3 and stored in the hopper 13 by the bucket elevator 12 connected to the projection chamber 3. In the present embodiment, the bucket elevator 7 is used as the conveying means. However, the present invention is not limited to this as long as the projection material can be transported. A pipe etc. can be used.
Part of the projection material stored in the hopper 13 is carried to the pressurized tank 4. Here, a flow rate adjusting valve 17 is installed in the projecting material accelerator connecting pipe 16, and the flow rate adjusting valve 17 is opened and closed according to the amount of the projecting material stored in the pressurized tank 4. And the projection material stored by the pressurization tank 4 passes the injection nozzle 5, and processes the to-be-processed product 2 again.

Next, Example 1 of the present invention will be described, but the present invention is not limited to such Example 1. The height of the product placed on the processing table 6 by the operator is measured by the height detecting means 8. The height determination means 10 determines whether the measured processing height h1 is within the processable range. Here, the processable range h2 to h3 (here, h2 <h3) set in advance and the measured processing height h1 are compared.
Next, in the case of h2 <h1 <h3, it is determined that processing is possible, and processing height information is transmitted to the motor controller 7b of the lifting device 7.
Next, when h3 <h1 or h2> h1, it is determined that the process cannot be performed because the process cannot be performed out of the processable range of the shot peening processing apparatus, the abnormality information is transmitted to the abnormality alarm unit 11, and the abnormality alarm unit 11 An abnormal alarm is issued. The operator can re-install the product to be processed as the next operation by the abnormality alarm so that the product to be processed can be processed, so that the generation of defective products can be suppressed.

  As is clear from the above description, the first embodiment improves the productivity because the worker can perform the shot peening process without determining the driving plan every time the product to be disposed is different. It is possible to make it.

In the present invention, the height detecting means 8 may be any one that can measure a distance related to height, such as a laser type and an eddy current type that can be measured from a distant place, or a gauge type that uses a contactor. In FIG. 1, reference numeral 8a is, for example, a tempered glass container that protects the projection material when the height detecting means 8 is a non-contact sensor. Further, when the height detection means 8 is a contact sensor, a movable mechanism that moves forward and backward toward the product to be processed is provided.
Embodiment 2
Next, a second embodiment of the present invention will be described. In the first embodiment, since the form information is the height of the product to be processed, the information acquisition unit is the height detection unit and the determination unit is the height determination unit. 2, since the shape information is the shape (height and outer diameter) of the product to be processed, as information acquisition means, for example, as shape recognition means 21 and determination means for recognizing the shape when the products to be processed are stacked A shape determining means 22 for determining the shape of the product to be processed is stacked.
In the second embodiment, as shown in FIG. 2, the camera 21 a of the shape recognition means 21 is arranged in the projection chamber 3 in order to detect the stacked shape of the product 2 to be processed. The shape determining means 22 is electrically connected to the shape recognizing means 21 and the motor controller 7b, and the abnormality determining means 11 is electrically connected to the shape determining means 22. In addition, about the element which shows the same effect | action and effect with the structure same as Embodiment 1, it shall show with the same code | symbol and abbreviate | omit the description.
Here, the shape recognition means 21 is not particularly limited in the present invention, but a camera 21a that obtains information as a two-dimensional elevation of the product 2 to be processed, and a two-dimensional image taken by the camera 21a. An image processing device (not shown) for extracting the contour line of the product to be processed 2 from the image information, and an image analysis device for analyzing the outer diameter at all heights from the processing table 6 from the contour line of the product to be processed 2 (Not shown) can be used. The image processing apparatus and the image analysis apparatus are connected to the shape determining means 22.

In the second embodiment, since the camera 21a is used as the shape recognizing means 21, it is preferable to provide, for example, a tempered glass container 23 on the entire surface of the camera 21a, for example, to protect against the projection material. Further, although the camera 21 a is disposed in the projection chamber 3, it can be disposed in the projection chamber 3.
Although the camera 21a is used as the shape recognizing means 21, the present invention is not limited to this. The shape recognition result only needs to be output as data, and the outer diameter at each height can be measured. A contact gauge having a data output function, such as a linear gauge, can be used. When this contact gauge is used, the shape of the product to be processed is recognized by being held by a movable gauge support mechanism, or the shape of the product to be processed is recognized while moving the product to be processed.

After the processed product 2 is set on the processing table 6 by an operator or a loading / unloading device, the appearance of the processed products 2 stacked by the shape recognition means 21 is detected. The detected stacked shape of the product 2 to be processed is transmitted to the shape determination means 22, and after it is determined whether or not it can be processed, it is sent to the motor controller 7b, and the height processing table 6 in which the product 2 to be processed exists exists. Go up and down.
Here, in the case of an abnormality in the case where the processed product 2 has a height or outer diameter stacked more than the processable range, abnormal information is transmitted from the processed product stacked shape determining means 22 to the abnormal alarm means 12 and an abnormal alarm is issued. To emit.

Next, a second embodiment of the present invention will be described, but the present invention is not limited to the second embodiment. The product placed on the processing table 6 by the operator is recognized by the shape recognition means 21 in the stacked shape. Here, the stacked shape recognized by the shape recognizing means 21 is photographed as a two-dimensional elevation by the camera 21a in a state where the product 2 to be processed is placed on the processing table 6, and the contour line is taken by the image processing device 21b. And is recognized as numerical data of X and Y (X indicates an outer diameter and Y indicates a height) from the contour line by the image analysis device 21c.
The shape determining means 22 determines whether or not the recognized numerical data X and Y are within the processable range. Here, the numerical data X and Y recognized as preset processable ranges X1 to X2 and Y1 to Y2 (here, X1 <X2 and Y1 <Y2) are compared.
Next, when X1 ≦ X ≦ X2 and Y1 ≦ Y ≦ Y2, it is determined that processing is possible, and processing information such as processing height, stop time, and moving speed is transmitted to the motor controller 7b of the lifting device 7.
If X2 <X or X1> X or Y2 <Y or Y1> Y, it is determined that the process cannot be performed because the process cannot be performed out of the processable range of the shot peening processing apparatus. And the abnormality alarm means 11 issues an abnormality alarm. The operator can re-install the product to be processed as the next operation by the abnormality alarm so that the product to be processed can be processed, so that the generation of defective products can be suppressed.

  As is clear from the above description, the second embodiment improves the productivity because the worker can perform the shot peening process without determining the driving plan every time the products to be processed are different. It is possible to make it.

  In the first and second embodiments so far, the processing table 6 as the rotation holding unit is used to hold the product 2 to be processed in the vertical direction, but the present invention is not limited to this. In order to hold the product 2 to be processed in the horizontal direction, a horizontally mounted rotating cage as a rotation holding unit can be used. In this case, instead of the elevating device 7, a slide device configured so that the table on which the rotating cage is placed can be moved horizontally by a ball screw or the like is used as the moving device.

1 is a schematic configuration diagram of a shot peening processing apparatus according to a first embodiment of the present invention. It is a schematic block diagram of the shot peening processing apparatus concerning Embodiment 2 of this invention.

Explanation of symbols

A Projection material acceleration means 1 Shot blast machine main body 2 Product to be processed 3 Projection chamber 4 Pressurized tank 5 Injection nozzle 6 Processing table 6a Drive motor 7 Lifting device 7a Lifting motor 7b Motor controller 8 Height detection means 10 Height determination means 11 Abnormal alarm means 12 Bucket elevator 13 Hopper 16 Projection material accelerator connecting pipe 17 Flow rate adjusting valve 21 Shape recognition means 21a Camera 22 Shape determination means

Claims (4)

A shot peening apparatus for peening a product to be processed having a predetermined form,
A rotation holding unit for rotatably holding the product to be processed;
A moving device for moving the rotation holding unit;
A projection chamber surrounding the product to be processed and the rotation holding unit;
Information acquisition means for acquiring form information of the product to be processed;
Determination means for determining whether or not the form information of the product to be processed is within a predetermined processable range;
An abnormality alarm means for issuing an abnormality alarm when the form information of the product to be processed is not within the processable range;
A shot peening treatment apparatus comprising: a projection material acceleration device that accelerates a projection material toward the product to be processed. When the form information is the height of the product to be processed,
2. The shot peening processing apparatus according to claim 1, wherein the information acquisition unit is a height detection unit that measures the height of the product to be processed, and the determination unit is a height determination unit. When the form information is the shape of the product to be processed,
2. The shot peening processing apparatus according to claim 1, wherein the information acquisition means is shape recognition means for recognizing the shape of the product to be processed, and the determination means is a shape determination means. 4. The shot peening apparatus according to claim 1, 2 or 3, wherein the projection material acceleration device comprises an injection nozzle for injecting the projection material and a pressurized tank.