JP2015221932A - Cathode jig for electroplating and rack for electroplating using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cathode jig for electroplating which prevents unstabilization of the current flow due to contact failures between a cathode piece and the cathode body so as to eliminate the possibility of poor plating and a rack for electroplating using it.SOLUTION: A cathode jig 40 for electroplating used in a rack type plating apparatus includes a cathode body 41, a cathode piece 42 which is extended from the cathode body 41 and is capable of hooking a to-be-plated object W and an insulation layer 43 which covers the cathode body 41 and at least a part of the cathode piece 42, and the cathode body 41 and the cathode piece 42 are composed of a single member.

Description

  The present invention relates to a cathode jig for electroplating used in a rack type plating apparatus and an electroplating rack using the same.

  There existed what was described in patent document 1 as a conventional cathode jig for electroplating. According to this, on the main shaft serving as the cathode, a branch frame on which an object to be plated is hung is projected, and a collar portion is formed at the upper end. However, Patent Document 1 does not specifically describe how to attach the branch bone to the main shaft. In a normal electroplating cathode jig, the branch is bolted to the main shaft and then soldered to attach the branch to the main shaft.

Japanese Utility Model Publication No. 03-45968

  However, in bolt tightening, the branch bone is easily rotated along with the rotation of the bolt at the end of the bolt tightening operation, so that accurate positioning of the branch bone is difficult. Also, due to the work to be plated, the bolts loosen and the position of the branches changes, the adjacent objects to be plated interfere with each other, and the current flow becomes unstable due to poor contact between the branches and the main shaft. In addition to the occurrence of defects, it is necessary to attach a large number of branch bones, which increases the number of manufacturing steps. Furthermore, there is a problem that the burden of maintenance work for adjusting the position of the branch bone is heavy by tightening the loosened bolts.

  The present invention solves the above-mentioned problem, prevents the current flow from becoming unstable due to poor contact between the branch bone (cathode piece) and the main shaft (cathode body), and does not cause plating failure. An object of the present invention is to provide an electroplating cathode jig capable of reducing the number of manufacturing steps and reducing the burden of maintenance work and an electroplating rack using the same.

  The invention according to claim 1 includes a cathode body, a cathode piece extending from the cathode body and capable of hooking an object to be plated, and an insulating layer covering at least a part of the cathode body and the cathode piece, and a rack type The cathode jig for electroplating used in this plating apparatus, wherein the cathode body and the cathode piece are formed as one member.

  According to this, since the cathode jig is formed with a single member, the bolt is loosened, the position of the cathode piece is changed and the objects to be plated do not interfere with each other, and the cathode body and the cathode piece are in poor contact. Thus, the plating failure due to the reason does not occur, and the cathode jig for electroplating can reduce the number of manufacturing steps and the burden of maintenance work.

  Further, the cathode body is formed in a long shape with a constant thickness, and the cathode piece extends toward the short side of the cathode body, and has a substantially constant width when viewed from the thickness direction of the cathode body. A hook portion that is formed and hooks the object to be plated, and a base portion that connects the cathode body and the hook portion, and the width of the base portion viewed from the thickness direction of the cathode body is larger than the width of the hook portion. ing.

  According to this, it is possible to increase the strength of the cathode piece closer to the cathode body, and to prevent the cathode piece from being greatly deformed due to contact with the object to be plated during the operation.

  In addition, since the boundary portion between the portion covered by the insulating layer of the cathode piece and the portion not covered easily breaks due to electrolytic corrosion due to electroplating, the insulating layer covers at least a part of the base on the cathode body side. The replacement frequency of the electroplating cathode jig can be reduced by positioning the boundary portion between the portion covered by the insulating layer and the portion not covered at the base portion of the cathode piece that is to be formed with a large area.

  In addition, the cathode side frame is connected to the cathode side bus bar, the cathode frame is mounted with the electroplating cathode jig according to claim 1, 2, or both ends of the cathode body, A mounting portion to be attached to the mounting portion provided on the cathode side frame is provided, and the cathode side frame is provided with a mounting portion that is formed in a substantially U shape and detachably holds the mounting portion. ing.

  According to this, it becomes possible to remove a cathode main body and to remove a to-be-plated object by one operation | work, and can improve production efficiency.

Also, a rack used when plating a cylindrical workpiece having a through hole, a cathode side frame connected to the cathode side bus bar, and an auxiliary anode side frame connected to the anode side bus bar; The cathode frame for electroplating according to claim 1, 2 or 3 is mounted on the cathode side frame, and the hook portion is formed so as to be insertable into the through hole of the object to be plated. An auxiliary anode jig is attached to the frame,
The auxiliary anode jig has an auxiliary anode main body, an auxiliary anode piece that extends from the auxiliary anode main body and can be inserted into the through hole of the object to be plated in a non-contact state with the inner peripheral surface of the through hole. Yes.

  According to this, since the auxiliary anode piece can be inserted into the through-hole of the object to be plated in a non-contact state with the inner peripheral surface of the through-hole, it is suitable for plating a cylindrical object to be plated. It can be a plating rack.

It is a perspective view which shows the rack for electroplating of 1st embodiment of this invention. It is a front view of the cathode jig for electroplating of the embodiment. (A), (b), (c) is the elements on larger scale which show the modification of the base of the cathode jig for electroplating. It is a perspective view which shows the rack for electroplating of 2nd embodiment of this invention. It is a front view of the cathode jig for electroplating of the same embodiment, and an auxiliary anode jig.

  A first embodiment of an electroplating rack according to the present invention will be described with reference to the drawings. In the following description, F is the front, B is the back, R is the right, L is the left, U is the top, and D is the bottom of the arrows in each drawing.

  As shown in FIGS. 1 and 2, the electroplating rack 10 is generally applied to a rack-type plating apparatus, and includes a cathode side frame 20 and an electric mounted on the cathode side frame 20. And a cathode jig for plating 40, which is used when an object to be plated W is hooked on the cathode jig for electroplating 40, immersed in a plating bath, and plated.

  The cathode side frame 20 is a metal having conductivity, and has a vertical column portion 21 and a horizontal column portion 22 and is formed in a rectangular frame shape.

  At both ends in the left-right direction of the upper vertical column portion 21, hanging portions 23 formed on the cathode-side frame 20 so as to be able to be hung on a cathode-side bus bar (not shown) are arranged at the upper central portion. .

  In the vertical column portions 21, 21, a plurality of arm portions 24 extending in the front-rear direction are arranged in the vertical direction. In FIG. 1, the arm portions 24 other than the uppermost and lowermost stages are omitted for easy viewing. On the free end side of the arm portion 24, an attachment portion 24a for detachably holding the electroplating cathode jig 40 is disposed.

  The mounting portion 24a is formed in a substantially U shape with the upper side opened when viewed from the left-right direction, and is capable of attaching and detaching the electroplating cathode jig 40, and covers the electroplating cathode jig 40 described later from the front and rear directions. The attachment portion 41a can be clamped.

  The cathode side frame 20 is provided with an insulating coating (not shown) except for the hanging portion 23 and the mounting portion 24a, and can be made electrically conductive with the bus bar on the cathode side at the hanging portion 23. It is possible to conduct electricity with the cathode jig 40 for plating.

  As shown in FIG. 2, the electroplating cathode jig 40 includes a cathode body 41, a cathode piece 42, and an insulating layer 43, and the cathode body 41 and the cathode piece 42 are conductive metals. Thus, they are formed continuously by one member.

  The cathode body 41 is formed in an elongated shape with a constant thickness in the front-rear direction, and attached portions 41 a that are detachably attached to attachment portions 24 a disposed on the cathode side frame 20 at both ends of the cathode body 41. Is arranged.

  The cathode piece 42 extends downward (in the short direction) of the cathode body 41, a hook portion 42a that holds the workpiece W, and a base portion 42b that connects the cathode body 41 and the hook portion 42a. ,have.

  The hook part 42a is formed in a rectangular shape in cross section, and extends diagonally downward to the left from the base part 42b. Then, the hook part 42a has bent portions at two locations, and the diagonally upper right part is opened to hang the object to be plated W. It is formed so that it can be stopped. The hook portion 42a is formed so that the width L1 seen from the front-rear direction (thickness direction of the cathode body 41) is substantially the same, and the width seen from the front-rear direction (thickness of the cathode body 41) of the base portion 42b. It is formed smaller than L2.

  The base 42b is formed so that the length in the left-right direction becomes narrower from the upper end toward the lower end. A width L2 viewed from the front-rear direction of the base part 42b (the thickness of the cathode body 41) is formed larger than a width L1 viewed from the front-rear direction of the hook part 42a. In FIG. 2, L2 at the center lower portion of the base portion 42b is shown for easy viewing, but the narrowest portion is formed larger than the width L1 as viewed from the front-rear direction of the hook portion 42a.

  The insulating layer 43 is formed by applying an insulating coating to the cathode body 41 and the cathode piece 42 excluding the attached portion 41a of the cathode body 41 and the lower portion of the base portion 42b of the cathode jig 40 for electroplating. It is configured.

  In the present embodiment, the insulating layer 43 covers from the center in the vertical direction of the base portion 42b to near the bottom.

  A usage mode of the electroplating rack 10 will be described. The mounting portion 24 a of the arm portion 24 of the cathode side frame 20 sandwiches the mounted portions 41 a at the left and right ends of the cathode body 41 of the cathode jig 40 for electroplating, and the cathode for electroplating on the cathode side frame 20. The jig 40 is attached.

  Then, the workpiece W is hooked on the hook portion 42a. The object W to be plated, which is hooked on the electroplating rack 10, is sent to the plating bath and immersed in the plating bath, and electroplating is performed. When the electroplating rack 10 is sent out from the plating bath, the electroplating cathode jig 40 is removed from the cathode-side frame 20, and the workpiece W is removed from the electroplating cathode jig 40. That is, the workpiece W can be removed from the electroplating cathode jig 40 by a single operation.

  In the electroplating cathode jig 40 having the above-described configuration, a cathode body 41, a cathode piece 42 extending from the cathode body 41 and capable of hooking an object to be plated W, and at least a part of the cathode body 41 and the cathode piece 42 are provided. An electroplating cathode jig used in a rack type plating apparatus, comprising a covering insulating layer 43, wherein a cathode body 41 and a cathode piece 42 are formed as one member.

  According to this, since the electroplating cathode jig 40 is formed as a single member, the bolt is loosened, the position of the cathode piece 42 is changed, and the objects to be plated W do not interfere with each other, and the cathode body 41 Thus, there is no contact failure between the cathode piece 42 and the cathode piece 42, so that no plating failure occurs for the reason, and the cathode jig for electroplating can reduce the number of manufacturing steps and the burden of maintenance work.

  Further, the cathode body 41 is formed in a long shape having a certain thickness, and the cathode piece 42 is extended toward the short side direction of the cathode body 41, and the front and rear (thickness) direction of the cathode body 41 is formed. A hook portion 42a that is formed to have a substantially constant width when viewed from the side and has a base portion 42b that connects the cathode body 41 and the hook portion 42a to the front and rear of the cathode body 41 of the base portion 42b ( A width L2 viewed from the (thickness) direction is formed larger than the width L1 of the hook portion 42a.

  According to this, it is possible to increase the strength of the cathode piece 42 closer to the cathode main body 41 and to prevent the cathode piece 42 from being greatly deformed due to contact with the workpiece W during work or the like.

  Further, since the boundary portion between the portion covered by the insulating layer 43 and the portion not covered by the cathode piece 42 is easily damaged by electroplating due to electroplating, the insulating layer 43 covers at least a part of the base portion 42b on the cathode body 41 side. The electroplating cathode jig 40 is configured so as to cover the boundary portion between the portion covered by the insulating layer 43 and the portion not covered by the portion of the base portion 42b of the cathode piece 42 that has a large cross-sectional area. Exchange frequency can be reduced.

  Further, the cathode side frame 20 connected to the cathode side bus bar is provided. The cathode side frame 20 is equipped with a cathode jig 40 for electroplating, and the cathode body 41 is arranged at both ends of the cathode side frame 20. An attached portion 41a to be attached to the provided attachment portion 24a is provided, and the cathode side frame 20 is provided with an attachment portion 24a that is formed in a substantially U shape and detachably holds the attached portion 41a. The electroplating rack 10 is provided.

  According to this, it becomes possible to remove the cathode main body 41 and remove the workpiece W from the electroplating rack 10 in a single operation, thereby improving the production efficiency.

  A second embodiment of the present invention will be described with reference to FIGS. About the structure which is common with the rack 10 for electroplating, the same code | symbol is attached | subjected and all or one part of those description is abbreviate | omitted.

  The electroplating rack 10A is a rack applied when plating a cylindrical workpiece W having a through hole W1.

  The electroplating rack 10A includes a cathode side frame 20 connected to the cathode side bus bar and an auxiliary anode side frame 30 connected to an anode side bus bar (not shown).

  The auxiliary anode side frame 30 is a metal having conductivity, and has a vertical column portion 31 and a horizontal column portion 32, and is formed in a substantially U-shaped frame shape having an open bottom.

  At the center of the upper vertical column portion 31, there is disposed a hanging portion 33 that can be suspended from the bus bar on the anode side.

  The vertical column portion 31 is provided with a plurality of stages of arm portions 34 extending in the front-rear direction. In FIG. 4, the arm portions 34 other than the uppermost and lowermost stages are omitted for easy viewing. On the free end side of the arm portion 34, an attachment portion 34a for detachably holding the auxiliary anode jig 50 is disposed. The mounting portion 34a is formed in a rectangular flat plate shape, and is extended on the right side of the left arm portion 34 and on the left side of the right arm portion 34. A through hole (not shown) is formed, and the auxiliary anode is tightened with a bolt and nut. The jig 50 can be attached.

  The auxiliary anode side frame 30 is provided with an insulating coating on a portion excluding the hanging portion 33 and the mounting portion 34a, and the suspension portion 33 can conduct electricity to a bus bar on the anode side. It is possible to conduct electricity with the tool 50.

  The electroplating rack 10A is integrally configured in a substantially rectangular frame shape, with the auxiliary anode side frame 30 placed on the outside of the cathode side frame 20 so as to be overlapped and fixed with a band or the like.

  An auxiliary anode jig 50 is mounted on the auxiliary anode side frame 30. As shown in FIG. 5, the auxiliary anode jig 50 includes an auxiliary anode body 51 and an auxiliary anode piece 52, and the auxiliary anode body 51 and the auxiliary anode piece 52 are made of a conductive metal. It is formed continuously by members.

  The auxiliary anode main body 51 is formed in a long plate shape having a constant thickness in the front-rear direction and long in the left-right direction. The auxiliary anode main body 51 is attached to both ends of the auxiliary anode main body 51 with mounting portions 34 a disposed on the auxiliary anode side frame 30. A mounted portion 51a to be mounted is provided.

  The auxiliary anode piece 52 is formed in a long plate shape and extends obliquely upward to the right from the auxiliary anode body 51.

  The auxiliary anode piece 52 is a portion in which the object to be plated W of the hook portion 42a is hooked and brought into contact with the auxiliary anode side frame 30 as shown in the circle in FIG. 4A and (b). And can be inserted into the through-hole W1 of the workpiece W in a non-contact state with the inner peripheral surface of the through-hole W1.

  According to the electroplating rack 10A having the above-described configuration, the auxiliary anode piece 52 can be inserted into the through hole W1 of the workpiece W without contacting the inner peripheral surface of the through hole W1. When plating the plated object W, a suitable electroplating rack can be obtained.

  The electroplating rack of the present invention is not limited to the above configuration. That is, various design changes can be made without departing from the gist of the present invention.

  For example, the base portion 42b can be formed in a rectangular shape as shown in FIG. 3 (a) or as shown in FIG. 3 (b) if the width L2 viewed from the front-rear direction can be made larger than the width L1 of the hook portion 42a. It can be formed in a semicircular shape, or it can be formed in a home base shape as shown in (c).

  The hook portion 42a has a rectangular cross-sectional shape, but it is desirable to perform chamfering to reduce the contact area with the workpiece W.

DESCRIPTION OF SYMBOLS 10 Electroplating rack 10A Electroplating rack 20 Cathode side frame 21 Vertical column part 22 Horizontal column part 23 Hanging part 24 Arm part 24a Attachment part 30 Auxiliary anode side frame 31 Vertical column part 32 Horizontal column part 33 Hanging part 34 Arm part 34a Mounting part 40 Electroplating cathode jig 41 Cathode body 41a Mounted part 42 Cathode piece 42a Hook part 42b Base part 43 Insulating layer 50 Auxiliary anode jig 51 Auxiliary anode body 51a Mounted part 52 Auxiliary anode piece width L1
Width L2
W To-be-plated object W1 Through hole

Claims (5)

A cathode body, a cathode piece extending from the cathode body and capable of hooking an object to be plated, and an insulating layer covering at least a part of the cathode body and the cathode piece, and used in a rack type plating apparatus A cathode jig for electroplating,
The cathode jig for electroplating, wherein the cathode main body and the cathode piece are formed as one member. The cathode body is formed in a long shape having a certain thickness,
The cathode piece extends in a short direction of the cathode body, is formed with a substantially constant width when viewed from the thickness direction of the cathode body, and hooks the object to be plated. And a base for connecting the hook part,
2. The cathode jig for electroplating according to claim 1, wherein a width of the base portion as viewed from a thickness direction of the cathode main body is larger than a width of the hook portion.   The cathode jig for electroplating according to claim 2, wherein the insulating layer covers at least a part of the base on the cathode body side. A cathode side frame connected to the cathode side bus bar;
The cathode frame for electroplating according to claim 1, 2, or 3 is attached to the cathode side frame,
At both ends of the cathode main body, attached portions to be attached to attachment portions disposed on the cathode side frame are disposed,
The electroplating rack, wherein the cathode side frame is provided with a mounting portion that is formed in a substantially U shape and detachably holds the mounting portion. A rack used when plating the cylindrical object to be plated having a through-hole,
A cathode side frame connected to the cathode side bus bar, and an auxiliary anode side frame connected to the anode side bus bar,
The cathode frame for electroplating according to claim 2 or 3 is attached to the cathode side frame,
The hook portion is formed to be insertable into the through hole of the object to be plated,
An auxiliary anode jig is attached to the auxiliary anode side frame,
The auxiliary anode jig includes an auxiliary anode main body, an auxiliary anode piece that extends from the auxiliary anode main body and can be inserted into the through hole of the object to be plated without being in contact with the inner peripheral surface of the through hole. A rack for electroplating, characterized by comprising:

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