JP4951371B2 - Rotating jigs in machined product cleaning equipment - Google Patents

Description

  The present invention is an improvement of a rotating jig in a machined product cleaning apparatus, which stably and reliably fixes difficult fixing of a product part that rotates on the rotating jig, and also has a cutting powder adhering to a product part by a part processing process. In addition, impurities such as dust, processing oil, and processing oil can be surely and safely washed and removed, and the residual water droplets after washing can be quickly removed.

  Conventionally, in order to remove impurities such as cutting powder adhering to product parts by processing in a production line consisting of parts machine tools, high-pressure air is sprayed onto the processed product with an air nozzle equipped on the production line to remove chips, etc. A method by air blowing that blows away is common. In addition, a method is also known in which a production line is equipped with a CFC cleaning device, a processed product is accommodated therein, and a CFC solution is sprayed onto the surface of the processed product for cleaning.

Further, in order to improve the cleaning efficiency and the working environment, for example, as shown in FIG. 4, on the mounting plate B that is rotatably mounted in the box-shaped cleaning chamber by the motor-driven rotating shaft A, A plurality of holders (holding pins) C1 to C3 are planted in order to fix and hold the processed products W1 and W2 that are the cleaning objects, and the processed products W1 and W2 are placed on the mounting plate B by these holders C1 to C3. Cleaning the processed product in which the processed product is cleaned by spraying hot water of 60 to 80 degrees containing a rust preventive agent while rotating the processed product forward and backward in the cleaning chamber while being fixed on the top. An apparatus was developed by the inventors of the present application (see Japanese Patent Application Laid-Open No. 7-278886).
JP-A-7-278861

  The above-described processed product cleaning apparatus (described in Patent Document 1) has excellent cleaning efficiency of processed parts, and since it is cleaning in a box-shaped cleaning chamber, iron powder has been blown away with air so far. Compared to the work method, the work environment can be remarkably improved. However, when the processed product is rotated forward and backward in the cleaning chamber, depending on the mass of the processed product that is the material to be cleaned, it may be detached from the holder on the plate due to centrifugal force, interfering with other processed products. May damage the cleaning device.

  In addition, when it comes off the holder, the production line stops because it makes an abnormal noise due to the rampage of the processed product in the cleaning device and requires operations such as stopping the cleaning device and adjusting it again. It can also have a significant adverse effect on production capacity.

The present invention is to solve the various problems mentioned above, easily from the holder on置版mounting even Tsu by the centrifugal force generated by the rotation of置版mounting regardless mass whether the processed products to be cleaned material Specifically, the turntable is a turntable that rotates by attaching a processed product for the purpose of cleaning in the cleaning chamber, and is disposed on the turntable. a plurality of holding pins order to hold, is disposed on the turntable, and a bearing member for supporting the processed products, each holding pin, fixed to its base on the turntable together are implanted by, mounted by a certain angle tilted toward the rotation axis direction of the turntable, the bearing member, the processed products, a predetermined high from the upper surface of the turntable Be supported on relates to a rotary jig in processed products cleaning apparatus according to claim.

  In the present invention, since the holding pins planted on the turntable are attached to the turntable by being inclined at a certain angle toward the rotation axis direction of the turntable, when the turntable rotates, the holding pins are centrifuged. Even if a force is generated, the total mass of the processed product is gradually drawn toward the base portion where the holding pin tilts according to the rotational force of the turntable.

  As a result, the processed product, which is the material to be cleaned fixed by the holding pin, comes off from the holding pin due to the centrifugal force caused by the rotation of the turntable, causing the processed product to be violated in the cleaning device. The conventional problem that it was difficult to securely fix the processed product on the rotating jig can be satisfactorily solved without causing damage due to interference contact with the processed product.

  In addition, because the turntable with the processed product that is the material to be cleaned is housed in the box-shaped cleaning chamber, metal powder such as iron powder that scatters with the cleaning agent as the turntable rotates, The working environment can be significantly improved by eliminating problems such as damaging the eyes of workers who are gazing or damaging the eyes, or scattering and floating of metal powder in the factory to deteriorate the working environment. In addition, by installing this apparatus in a production line composed of part machine tools, it is possible to significantly improve productivity.

  Hereinafter, specific contents of the present invention will be described with reference to the embodiments shown in the drawings. FIG. 1 shows a first embodiment of the present invention. In the figure, reference numeral 1 denotes a turntable, and a processed product is attached and rotated in the cleaning chamber for the purpose of cleaning. Specifically, for example, in the box-shaped cleaning chamber of the cleaning device disclosed in Patent Document 1 described above, a central mounting recess is provided at the upper end of a rotating shaft (not shown) that is rotated by a motor drive. It is attached by using a fixing means such as screwing with a screw 1b.

  Further, on the turntable 1, at least a plurality of holding pins 2 for holding a processed product (a cylinder with an aluminum fin for a motorcycle engine represented by a broken line in the example shown in FIG. 1) W The holding pins 2 are planted around a concave portion 1a for mounting, and each holding pin 2 has a certain angle toward the rotation axis direction (X-X direction) of the turntable 1 (comparison of the embodiment of FIG. 1). (In the case of a light and lightweight processed product, about 5 to 15 degrees) In a tilted state, each of the threaded bases 2b is fastened and fixed to the turntable 1 with nuts 2c. Yes.

  In FIG. 1, reference numeral 2a denotes a resin cover for preventing wear caused by contact with the processed product and for preventing slippage with the processed product, and an outer peripheral surface near the base from the upper end of the metallic holding pin 2 It is put on.

  FIG. 2 shows a second embodiment of the present invention. In FIG. 2, reference numeral 21 denotes a turntable, which is attached to the rotating shaft of the drive motor by a recess 21a. In this case, a metal with a resin cover 22a around it so that two processed products W (indicated by chain lines) W processed as engine parts of an automobile are attached at two symmetrical positions with the rotation axis of the turntable 21 in between. Each of the holding pins 22 to 24 made of a certain angle toward the rotation axis direction of the turntable 21 (about 30 degrees when the mass is somewhat high like the processed product of the embodiment of FIG. 2). ) In a tilted state, each base portion is fixed and attached to the turntable 1 by screws as in the case of the first embodiment.

  Reference numeral 25 denotes an attachment hole for attaching a holding pin at an arbitrary position when another processed product is attached. Further, FIG. 3 shows a third embodiment of the present invention. In this case, a case where cleaning is performed with a relatively large processed product W attached thereto is shown. In the figure, reference numeral 31 denotes a turntable, which is attached to the rotating shaft of the drive motor as in the case of the first embodiment described.

  In this case, since the processed product W is large, the number of the metal holding pins 32 is only one, which is eccentric from the axis X-X passing through the rotation center of the turntable 31 and the rotation axis X-X. In a state where it is tilted by about 30 degrees in the direction, the base portion to which the screw machining 32b is applied is fastened and fixed to the turntable 31 by a nut 32c.

  In FIG. 3, reference numeral 33 denotes an auxiliary metal fitting, which is attached around the holding pin 32 by screws 33a so as to surround the holding pin 32, and supports a large processed product W attached to the holding pin 32 in a balanced manner. To do. Further, reference numeral 34 in FIG. 3 represents a balance weight, and when the turntable 31 is rotated, due to the large mass of the processed product W attached at a position eccentric from the rotation center that rotates about the rotation axis XX. In order to reduce the excessive centrifugal force and maintain the rotational balance, a weight matching the mass of the processed product W is attached. Reference numeral 32a represents a resin cover.

  In the configuration of each embodiment described above, the tilt angle of the holding pins 2, 22 to 24, 32 planted on the turntables 1, 21, 31 in the rotation axis direction depends on the mass of the processed product W. Although it is necessary to adjust, when the processed product W is relatively light, it may be within a range of 5 degrees to 15 degrees, and when the processed product W is relatively heavy, it is within a range of 30 degrees to 45 degrees. It is enough if it is within.

  As a result of washing experiments on many processed products such as relatively light or relatively heavy products, there is almost no effect if the inclination angle of the holding pin is less than 5 degrees in any processed product. On the other hand, it has been found that if the angle exceeds 45 degrees, it becomes difficult to attach the processed product to the turntable, which impairs the practicality. Therefore, it became clear that the inclination angle of the holding pin toward the rotation axis of the turntable needs to be within a range of 5 degrees or more and less than 45 degrees.

  As shown in the above embodiments, the holding pins 2, 22 to 24, 32 planted on the turntables 1, 21, 31 are respectively fixed toward the rotation axis direction of the turntables 1, 21, 31. Since the tilted angle is attached, even if a centrifugal force is generated on the processed product W when the turntables 1, 21, 31 are rotated, the processed product W is retained on the holding pins 2 on the turntables 1, 21, 31. No separation from 22-24, 32. As a result, it was possible to brilliantly solve the conventional problems in which it was difficult to securely fix the processed product on the rotating jig.

  That is, even if the turntables 1, 21 and 31 rotate to generate a centrifugal force on the processed product W, the free end where the total mass of the processed product W due to the centrifugal force is above the holding pins 2, 22 to 24 and 32. As a result, the processed product W, which is the material to be cleaned fixed by the holding pins 2, 22 to 24, 32, is centrifuged by the rotation of the turntables 1, 21, 31. With the force, it may come off from the holding pins 2, 22 to 24, 32, and the processed product W may be violated in the cleaning device, or may be damaged by interference contact with other processed products. Disappear.

  In addition, since the turntables 21, 21, and 31 to which the processed product that is the material to be cleaned is housed in the box-shaped cleaning chamber, metal powder such as iron powder scattered with the cleaning agent as the turntable rotates, Significantly improve the work environment by eliminating problems such as damage to the eyes of workers who are gazing for work or metal powder scattering and floating in the factory In addition, production delays due to the suspension of line operations can be eliminated. In addition, by installing this apparatus in a production line composed of part machine tools, it is possible to significantly improve productivity.

The top view (A) of the rotary jig in the processed product washing | cleaning apparatus which is 1st Example of this invention, and the side view (B) which represented the part with the cross section. The top view (A) of the rotary jig in the processed product washing | cleaning apparatus which is 2nd Example of this invention, and the side view (B) which represented the part with the cross section. The top view (A) of the rotary jig in the processed product washing | cleaning apparatus which is 3rd Example of this invention, and the side view (B) which represented the part with the cross section. The side view showing the mounting plate which attaches the processed product which is a conventional product.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turntable 1a Recess 2 Holding pin 2a Resin cover 2b Screw processing 2c Nut 21 Turntable 21a Recess 22 Holding pin 22a Resin cover 23 Holding pin 24 Holding pin 25 Mounting hole 31 Turntable 32 Holding pin 32a Resin cover 32b Screw machining 32c Nut 33 Auxiliary metal fitting 33a Screw 34 Balance weight W Processed product

Claims (4)

A turntable that rotates by attaching a processed product for cleaning purposes in a cleaning chamber,
Is disposed on the turntable, a plurality of holding pins order to hold the processed products,
A support member disposed on the turntable for supporting the processed product,
Wherein each retaining pin, the base portion is fixed to the turntable with being erected, mounted by a predetermined angle inclined towards the rotational axis of the turntable,
The rotating jig in the machined product cleaning apparatus , wherein the support member supports the machined product at a predetermined height from an upper surface of the turntable . The rotating jig in the machined product cleaning apparatus according to claim 1, wherein the support member is disposed so as to surround the holding pin . Wherein arranged on a turntable, rotating the jig in the processed products cleaning apparatus according to claim 1 or claim 2 where with the balance weight to maintain the rotation balance of the turntable the processed products is attached . The rotary jig in the processed product cleaning apparatus according to any one of claims 1 to 3, wherein the certain angle is in a range of 4 degrees to 45 degrees .

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