JP2010201574A - Liquid honing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid honing device for indicating the wear state of a branch pipe before a hole opens. <P>SOLUTION: The branch pipe 20 is in a column shape and formed of polyurethane that is transparent material. The main passage 36 in which slurry passes, a branch passage 37 connected to a passage 22 for stirring, and bolt holes 39 in which bolts 38 are inserted are provided in the inner part of the branch pipe 20. The branch pipe 20 is connected to flanges 41, 42, and the bolt 38 is inserted in the bolt hole 39 and fixed by tightening a nut 43. The inner side of the branch pipe can be visually checked from the outside since the branch pipe is transparent, and the wear state in the inner part is recognized, preventing the leakage of the slurry by replacing the branch pipe before a hole opens. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid honing device that ejects slurry containing abrasive grains.

  Conventionally, a liquid honing apparatus including a slurry circulation mechanism that circulates a slurry for liquid honing including abrasive grains has been practically used (see, for example, Patent Document 1 (FIG. 1) and Patent Document 2 (FIG. 2)). .)

  In FIG. 1 of Patent Document 1, a part of the slurry fed by the honing pump (34) (the parenthesis number indicates the reference numeral in the drawing of the cited document) is jetted from the honing gun (36), and the remainder Is sent to the abrasive liquid layer (2) through the discharge pipe (32) and exhibits a stirring action. The slurry stirring technique is also described in FIG.

The technique of this patent document 2 is demonstrated below based on drawing.
As shown in FIG. 8, in the liquid honing apparatus 100, the slurry in the slurry agitation shed 102 provided in the slurry storage chamber 101 is pumped up by the first pump 103 together with the slurry in the upper portion of the slurry storage chamber 101. The slurry sent out by the first pump 103 is injected into the processing chamber 105 from the injection gun 104.

  On the other hand, the slurry in the upper part of the slurry storage chamber 101 is sucked by the second pump 106, passes through the stirring path 107 or the auxiliary path 108, and is discharged to the slurry stirring bar 102. In this way, the slurry is stirred by circulating the slurry.

  By the way, the branch pipe 109 that branches into the stirring path 107 and the auxiliary path 108 is in the vicinity of the pump 106, and a water flow swirling in the second pump 106 may cause a hole due to wear. This can be dealt with by replacing the pipe of the branch pipe 109, but the slurry leaks after the hole is opened. That is, there is a need for a liquid honing device in which the wear state of the branch pipe 109 as a connecting member with the second pump 106 can be understood before the hole is opened.

Japanese Patent Publication No. 2-58061 Japanese Patent Publication No. 61-34946

  This invention makes it a subject to provide the liquid honing apparatus which can understand the abrasion condition of a connection member before a hole opens.

  The invention according to claim 1 is a slurry storage section that stores a slurry for liquid honing including abrasive grains, a pump that pumps up the slurry from the slurry storage section, and a path for injection of the slurry delivered by the pump. A liquid honing apparatus comprising: a branch path that branches back to a stirring path that returns the slurry to a stirring path and stirs the slurry; and a spray gun that is provided at a tip of the spray path and sprays the slurry. The connection member is formed of a transparent material.

  The invention according to claim 2 is characterized in that the transparent material is polyurethane.

  The invention according to claim 3 is characterized in that illumination for illuminating the inside of the connection member is provided in the vicinity of the connection member.

In the invention which concerns on Claim 1, the connection member with a pump is formed with the transparent material. Since the connection member is transparent, the inside of the connection member can be visually confirmed from the outside, and the internal wear state can be understood, so that the connection member can be replaced before the hole is opened to prevent leakage of the slurry. .
In addition, since the connection member is used up to the usable limit, the replacement time of the connection member can be made appropriate, and the cost of the connection member as a consumable can be reduced.

In the invention according to claim 2, the transparent material is polyurethane. Since polyurethane is excellent in abrasion, durability can be improved.
In addition, since polyurethane is inexpensive, the cost of the connecting member can be reduced.
Furthermore, since processing is easy, processing costs can be reduced.

  In the invention which concerns on Claim 3, the illumination which illuminates the inside of a connection member is provided in the vicinity of the connection member. Since the inside of the connecting member can be brightened, visual confirmation can be easily and reliably performed.

It is a figure explaining the basic composition of the liquid honing apparatus concerning the present invention. It is a perspective view of branch piping concerning the present invention. It is sectional drawing of the branch piping which concerns on this invention. It is an effect | action figure of the liquid honing apparatus which concerns on this invention. It is a figure explaining the abrasion state of branch piping. It is a figure which shows durability of the connection member which concerns on this invention. It is a figure explaining the basic composition of the liquid honing apparatus of another example concerning the present invention. It is a figure explaining the basic principle of the prior art.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the liquid honing apparatus 10 includes a base 11, legs 12 and 12 provided on the base 11 and extending in the vertical direction, and abrasive grains provided on upper ends of the legs 12 and 12. A slurry storage part 14 for storing the liquid honing slurry 13 containing, a guide path 15 that is inserted into the slurry storage part 14 to guide the slurry 13, and a fixing member 16 that is provided in the slurry storage part 14 and fixes the guide path 15. A pump 17 that pumps up the slurry 13 from the slurry reservoir 14 via the guide path 15, a drive source 18 that is provided near the pump 17 and drives the pump 17, and a connecting member connected to the pump 17. The slurry 13 fed by the branch pipe 20 and the pump 17 is returned to the injection path 21 and the slurry reservoir 14 to stir the slurry 13. A branch path 23 that branches into the stirring path 22 to be made, an illumination 24 that is provided in the vicinity of the branch pipe 20 and illuminates the inside of the branch pipe 20, a fixing member 25 that is provided in the slurry reservoir and fixes the stirring path, An injection gun 26 that is provided at the tip of the injection path 21 and injects the slurry 13, a compressed air path 27 that is connected to the injection gun 26 and sends compressed air to the injection gun 26, and a work 28 that is provided in the slurry reservoir 14. A processing table 33 surrounded by the support table 31 and the inner wall 32 of the slurry reservoir 14, a door 34 for taking in and out the work 28 provided to face the processing chamber 33, It has. The slurry storage unit 14, the guide path 15, the pump 17, the branch pipe 20, the stirring path 22, the injection path 21, and the injection gun constitute a slurry circulation mechanism 35.

  As shown in FIG. 2, the branch pipe 20 as the connection member has a cylindrical shape, and is formed of, for example, polyurethane which is a transparent material. Inside the branch pipe 20, there are provided a main passage 36 through which slurry (FIG. 1, reference numeral 13) passes, a branch passage 37 connected to the stirring passage 22, and a bolt hole 39 through which a bolt 38 is passed. .

The branch pipe 20 is connected to the flanges 41 and 42, the bolt 38 is passed through the bolt hole 39, and is fixed by tightening the nut 43.
Moreover, since the branch pipe 20 is formed by a simple process that merely forms a hole in the columnar polyurethane, the processing cost can be reduced.

  The transparent material is not limited to polyurethane, and other materials such as polystyrene, polycarbonate, polyester, and glass can be used as long as they are transparent and can pass the slurry.

As shown in FIG. 3, the branch pipe 20 as the connecting member is fixed to the flanges 41 and 42 with the gaskets 44 and 44 interposed therebetween.
Further, since the branch passage 37 is arranged so as to pass between the bolt holes 39 and 38, there is no concern that the slurry (FIG. 1, reference numeral 13) leaks through the bolt holes 39 and 38.

The operation of the liquid honing apparatus described above will be described next.
In FIG. 4, the slurry 13 pumped up by the pump 17 is sent out from the slurry reservoir 14 to the branch pipe 20 as the connecting member via the guide path 15 as indicated by an arrow (1). The slurry 13 is divided into two at the branch pipe 20.
One passes through the injection path 21 as indicated by the arrow (2) and is sent to the injection gun 26 as indicated by the arrow (3). The air compressed by the compression pump 45 passes through the compressed air path 27 as shown by the arrow (4), merges with the slurry 13 by the injection gun 26, injects the slurry 13, and performs the surface treatment of the work 28.
On the other hand, the branched slurry 13 passes through the stirring path 22 as indicated by an arrow (5), and is returned to the slurry reservoir 14 as indicated by an arrow (6). Thereby, the slurry 13 in the slurry storage part 14 is stirred.

  Moreover, when confirming the wear situation inside the branch pipe 20, it can be visually confirmed by illuminating the illumination 24 as indicated by an arrow (7).

  In FIG. 5, (a) is a figure explaining the abrasion state of a comparative example, and the branch piping 110 is a T-shaped steel pipe. The slurry is branched into one that passes through the main passage 111 as indicated by arrow (8) and one that passes through the branch passage 112 as indicated by arrow (9). As the usage time elapses, due to the swirling water flow in the pump, a wear part 113 due to wear is formed from the inside in the branch pipe 110 arranged in the vicinity of the pump, and finally the wear part 113 has a hole. Opens.

  Slurry will leak after the hole is completely opened in the wear part 113. In addition, every time the wear state is confirmed, it is troublesome to remove the branch pipe 110 fixed via the bolt 114 and the nut 115 and confirm the inner side.

  (B) is a figure explaining the abrasion state of an Example, A slurry passes the main channel | path 36 as shown by the arrow (10), and the stirring path | route via the branch channel | path 37 like the arrow (11). Branches to those passing through 22. As the usage time elapses, a wear portion 46 due to wear is formed from the inside in the branch pipe 20 as a connecting member disposed in the vicinity of the pump due to the swirling water flow in the pump.

  Since the branch pipe 20 is transparent, it is possible to visually check the worn state (thinning state) from the outside without removing the branch pipe 20. Further, by illuminating the illumination 24 as indicated by the arrow (12), the wear state can be confirmed easily and reliably. Thereby, the branch pipe 20 can be replaced at an appropriate time, slurry leakage can be prevented, and work efficiency can be improved.

  As shown in FIG. 6, the inventor conducted a comparative experiment on the life time of the branch pipe of the comparative example (FIG. 5, reference numeral 110) and the branch pipe of the example (FIG. 5, reference numeral 20) under the same conditions. However, the branch pipe 110 of the comparative example needs to be replaced in two weeks, whereas the branch pipe 20 of the example has a result that lasts about 10 times longer. This is because polyurethane, which is the material of the branch pipe 20 of the example, is excellent in wear resistance.

  Further, in the branch pipe 20 of the embodiment, since the material polyurethane is inexpensive, it can be produced by a simple process of making a hole, the manufacturing cost is low, and the number of replacements can be reduced. The overall cost of the device (FIG. 1, reference numeral 10) can also be reduced.

Next, a second embodiment of the present invention will be described with reference to the drawings.
In FIG. 7, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.
In the liquid honing apparatus 10, an I-shaped pipe 50 as a connecting member is connected to the pump 17, and a steel material branch pipe 51 is connected to the I-shaped pipe 50.

The I-shaped pipe 50 has a cylindrical shape, and is formed of, for example, polyurethane which is a transparent material. The I-shaped pipe 50 is connected to a flange (FIG. 2, reference numeral 42) and a steel branch pipe 51, a bolt (FIG. 2, reference numeral 38) is passed through a bolt hole (FIG. 2, reference numeral 39), and a nut (FIG. 2, It is fixed by tightening the reference numeral 43).
Further, since the I-shaped pipe 50 is formed by a simple process that merely forms a hole in a polyurethane column, the processing cost can be reduced.

  The transparent material is not limited to polyurethane, and other materials such as polystyrene, polycarbonate, polyester, and glass can be used as long as they are transparent and can pass the slurry.

Next, the operation of the liquid honing device of the second embodiment described above will be described.
In FIG. 7, the description of the same parts as in FIG. 4 is omitted.
The slurry 13 pumped up by the pump 17 is sent out from the slurry reservoir 14 to the I-shaped pipe 50 via the guide path 15. The slurry 13 is divided into two at the steel branch pipe 51.

As the usage time elapses, the I-shaped pipe 50 arranged in the vicinity of the pump is worn from the inside due to the swirling water flow in the pump.
Since the I-shaped pipe 50 is transparent, it is possible to visually check the worn state (thinning state) from the outside without removing the I-shaped pipe 50. Further, by illuminating the illumination 24, the wear state can be confirmed easily and reliably. Thereby, the I-shaped pipe 20 can be replaced at an appropriate time, the leakage of the slurry can be prevented, and the working efficiency can be improved.

  In addition, although the connection member of the liquid honing apparatus according to the present invention is applied to the slurry containing abrasive grains in the embodiment, it can also be applied to a liquid that deteriorates the piping material by a chemical reaction, and is applied to a general connection member. You can do it.

  The liquid honing apparatus of the present invention is suitable for a liquid honing apparatus that ejects slurry containing abrasive grains.

  DESCRIPTION OF SYMBOLS 10 ... Liquid honing apparatus, 13 ... Slurry, 14 ... Slurry storage part, 17 ... Pump, 20 ... Connection member (branch piping), 21 ... Injection path, 22 ... Stirring path, 23 ... Branch path, 24 ... Illumination, 26 ... Injection gun, 28 ... Workpiece, 35 ... Slurry circulation mechanism, 46 ... Wear part, 50 ... Connection member (I-shaped piping).

Claims (3)

A slurry reservoir for storing a slurry for liquid honing including abrasive grains, a pump for pumping up the slurry from the slurry reservoir, and the slurry sent out by the pump is returned to the injection path and the slurry reservoir for the slurry. In a liquid honing apparatus comprising: a branch path that branches into a stirring path for stirring; and a spray gun that is provided at a tip of the spray path and sprays the slurry.
The liquid honing device, wherein the connection member with the pump is made of a transparent material.   The liquid honing apparatus according to claim 1, wherein the transparent material is polyurethane.   The liquid honing apparatus according to claim 1, wherein illumination for illuminating the inside of the connection member is provided in the vicinity of the connection member.

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