JP6620198B1 - Plate workpiece clamping member - Google Patents

Abstract

An object of the present invention is to reliably suspend and hold a plate-like work, and to effectively prevent the processing liquid from hanging down on the plate-like work when the plate-like work is pulled up from the processing liquid. It is an object of the present invention to provide a plate-shaped work holding member that can be suppressed. In order to achieve this object, a plate-like work for suspending and holding a plate-like work immersed in a processing liquid, comprising: a pair of holding pieces for holding the plate-like work; A liquid dripping guide claw disposed on the plate-like work side is provided, and the liquid dripping guide claw adopts a configuration including two or more linear members bent in a U-shape. [Selection diagram] FIG.

Description

  The present application relates to a plate-shaped workpiece clamping member that suspends and holds the plate-shaped workpiece in order to immerse the plate-shaped workpiece in a processing liquid and perform processing on the surface to be processed of the plate-shaped workpiece.

  Conventionally, when a plate-like workpiece is immersed in a processing solution to treat the surface of the plate-like workpiece, the end of the plate-like workpiece is sandwiched by a clamping member attached to the jig, and the jig is used as the processing solution. The plate workpiece was immersed.

  For example, in Patent Document 1, a transport jig provided in a guide rail for transporting a workpiece into a processing liquid has a plurality of chuck members, and grips two opposing sides of a rectangular workpiece by these chuck members. The chuck members are a fixed member that contacts the first surface of the workpiece, and a movable member that is disposed so as to be able to come into contact with and separate from the second surface of the workpiece at a position facing the fixed member, and that is pressed against the second surface. The movable member is formed on a driven piece that is driven when the pressure is released, a pressure driving piece that is always pressed to the fixed member side when the driven piece is not driven, and a free end of the pressure driving piece. And a thin plate-like pressing piece. With this configuration, the fixed member and the movable member grip the end portion of the thin plate workpiece.

  Conventionally, a plate-like workpiece clamping member as shown in FIG. 6 has been used. A plate-like workpiece clamping member 100 shown in FIG. 6 includes a first clamping piece 101 and a second clamping piece 102. Each of the first clamping piece 101 and the second clamping piece 102 was provided with claws 103 and 104 for clamping the plate-like workpiece W. The claws 103 and 104 had, for example, a cylindrical shape or a prismatic shape. Then, with the first sandwiching piece 101 and the second sandwiching piece 102 spaced apart, the plate-like workpiece W is sandwiched between the claws 103 and 104, and the urging force of the first sandwiching piece 101 and the second sandwiching piece 102 is obtained. Thus, the plate-like workpiece W is suspended and held.

JP 2013-11010 A

  However, in the chuck member disclosed in Patent Document 1, when the plate-shaped workpiece is lifted from the processing liquid, the processing liquid attached to the chuck member flows to the plate-shaped workpiece by its own weight. The processing liquid that has flowed down from the chuck member to the plate-like workpiece adheres to the processing surface of the plate-like workpiece and becomes dripping, resulting in poor appearance. In particular, when the plate-shaped workpiece is pulled up from the processing liquid and conveyed to the next process, there is a problem that dripping stain spreads greatly on the processing surface of the plate-shaped workpiece.

  Moreover, in the conventional plate-shaped workpiece clamping member 100 shown in FIG. 6, since the plate-shaped workpiece W is clamped between the columnar or prismatic claws 103, 104, the plate-shaped workpiece W is pulled up from the processing liquid. When this occurs, the treatment liquid tends to accumulate in the space formed by the cylindrical or prismatic nail and the clamping piece. The processing liquid collected in the space flows down during the process of pulling up the plate-like workpiece W from the processing solution or during conveyance to the next step, and hangs down on the processing surface WS of the plate-like workpiece W through the claws 103 and 104. . The treatment liquid dripping on the treatment surface WS becomes a dripping stain and causes an appearance defect. In particular, when a coating liquid is used as the processing liquid, the sagging stain forms a partial convex portion on the processing surface WS and causes a reduction in commercial value.

  In order to reduce the influence of the above-described problems, it is conceivable to reduce the number of plate-like workpiece clamping members used or to hold only the end portion of the plate-like workpiece W. However, when the number of plate-like workpiece clamping members to be used is small, there is a problem that it is difficult to stably hold the plate-like workpiece W in a suspended manner.

  Therefore, this invention is made in order to solve the conventional technical subject which concerns, and while being able to suspend and hold a plate-shaped workpiece reliably, when the said plate-shaped workpiece was pulled up from the processing liquid, An object of the present invention is to provide a plate-like workpiece clamping member that can effectively suppress the disadvantage that the treatment liquid is caused to sag on the plate-like workpiece.

  Accordingly, as a result of intensive studies, the present inventors have conceived that the above-described problems can be achieved by providing a plate-like workpiece clamping member described below.

The plate-like workpiece clamping member according to the present application is for holding and holding a plate-like workpiece immersed in a processing solution, and a pair of clamping pieces for clamping the plate-like workpiece, and the plate-like shape of each of the clamping pieces. A dripping induction claw disposed on the workpiece side, the dripping induction claw comprising two or more linear members bent into a U shape, and the diameter of the cross section of the linear member is 1 mm. It is characterized by being 1.5 mm or less .

  In the plate-like workpiece clamping member according to the present application, the dripping induction claw is formed continuously from a shaft portion hanging from the clamping piece and a lower end of the shaft portion, and is a U-shaped portion bent in a semicircular shape. And a workpiece abutting portion that is erected continuously from the tip of the U-shaped portion.

  In the plate-like workpiece clamping member according to the present application, the U-shaped portion preferably has a diameter of 6 mm or more and 8 mm or less.

  In the plate-like workpiece clamping member according to the present application, the axial length of the workpiece contact portion is preferably 0.5 mm or more and 2 mm or less.

  In the plate-like workpiece clamping member according to the present application, the treatment liquid is preferably a chemical treatment liquid.

  According to the plate-like workpiece clamping member according to the present application, when the sandwiched plate-like workpiece is pulled up from the treatment liquid, the treatment liquid attached to the dripping induction claw follows the U-shape of the linear member. Flow down. Thereby, the processing liquid adhering to the liquid dripping induction claw is guided in a direction away from the plate-shaped workpiece, and can effectively be prevented from flowing down to the plate-shaped workpiece. In particular, since the plate-like workpiece clamping member according to the present application constitutes a dripping induction claw with two or more linear members, it is possible to minimize the thickness of each linear member while ensuring a gripping force. It is possible to reduce the trace of the dripping induction claw remaining on the plate-like workpiece as much as possible. Therefore, according to the plate-like workpiece clamping member according to the present application, it becomes difficult to cause appearance defects such as sagging stains on the processing surface of the plate-like workpiece and traces of the dripping induction claw, and processing of a high-quality plate-like workpiece is possible. It can be realized.

It is a front view of the workpiece | work hanging jig | tool as this Embodiment when the process surface of the plate-shaped workpiece | work to hold | maintain is made into the front. It is a side view of the workpiece | work suspension jig | tool of FIG. It is the elements on larger scale of the dripping induction nail shown by X in FIG. FIG. 4 is a configuration explanatory diagram of a dripping induction claw in FIG. 3. It is the schematic block diagram which looked at the dripping induction nail from the workpiece | work side. It is the elements on larger scale which show the state which hold | maintained the plate-shaped workpiece with the conventional plate-shaped workpiece clamping member.

  Below, with reference to drawings, the plate-shaped workpiece clamping member which concerns on this application is demonstrated. The plate-like workpiece clamping member according to the present application is for holding and holding a plate-like workpiece immersed in the processing liquid, and a pair of clamping pieces for clamping the plate-like workpiece and the plate-like workpiece side of each clamping piece. The liquid drainage guide claw is provided with two or more linear members bent into a U-shape. According to the present application, since the dripping induction claw that directly holds the plate-like workpiece is provided with two or more linear members bent into a U-shape, the plate-like workpiece is pulled up from the processing liquid. At this time, the treatment liquid adhering to the dripping induction claw can be effectively prevented from flowing down along the U-shape and flowing down to the treatment surface of the plate-like workpiece. In particular, the dripping induction claw is constituted by two or more linear members, whereby the thickness of each linear member can be minimized while ensuring a gripping force. Thereby, the trace of the dripping induction claw remaining on the plate-like workpiece can be minimized. Therefore, by holding the plate-like workpiece in a suspended manner using the plate-like workpiece clamping member according to the present application, it becomes difficult to cause a poor appearance of the processing surface of the plate-like workpiece, and processing of a high-quality plate-like workpiece is possible. Become. Here, as a preferred embodiment of the plate-like workpiece clamping member according to the present application, a workpiece suspension jig 1 provided with this plate-like workpiece clamping member will be described as an example.

  The plate-like workpiece suspension jig 1 according to the present embodiment is immersed in a treatment liquid stored in a treatment liquid tank (not shown) while the plate-like workpiece W is suspended. It is used for processing the processing surface of the plate-like workpiece W with the processing liquid. The plate-like workpiece suspension jig 1 includes a support frame 2 and plate-like workpiece clamping members 10 and 20.

  In the present application, the plate-like workpiece W is not particularly limited, but, for example, a rectangular printed board can be adopted. The treatment liquid used in the present application is not particularly limited, but it is preferable to employ a chemical treatment liquid, a cleaning solution, or the like. As the chemical treatment liquid, for example, when a printed board is used as the plate-like workpiece W, various treatment liquids used for plating treatment such as a degreasing liquid, an etching liquid, and a plating liquid can be used.

  The support frame 2 is a frame configured along the outer shape of the plate-like workpiece W. In the present embodiment, the plate-like workpiece W is formed of a rectangular thin plate-like printed board. Therefore, the support frame 2 is a frame configured in a rectangular shape along the outer shape of the rectangular printed board. Specifically, the support frame 2 includes a pair of support bars 3 and 4 arranged along the upper and lower sides of the plate-like workpiece W, and a pair of side bars 5 arranged along the left and right sides of the plate-like workpiece W. 6 is provided. The side bars 5 and 6 are provided perpendicular to the support bars 3 and 4, and connect the end portions of the support bars 3 and 4 to form a rectangular support frame 2.

  The plate-like workpiece clamping members 10 and 20 are related to the present application, and are attached to the support bars 3 and 4 of the support frame 2 to attach and detach the upper edge portion and / or the lower edge portion of the plate-like workpiece W. Hold freely. Here, the plate-like workpiece clamping member 10 is a plate-like workpiece clamping member that suspends and holds the upper edge portion of the plate-like workpiece W, and the plate-like workpiece clamping member 20 holds the lower edge portion of the plate-like workpiece W. It is a plate-shaped workpiece clamping member. When the upper edge portion and the lower edge portion of the plate-like workpiece W are held by the plate-like workpiece clamping members 10 and 20 as in the present embodiment, the plate-like workpiece W is held by applying a predetermined tension. be able to. FIG. 2 shows a state in which the plate-like workpiece clamping member 20 that holds the lower end portion of the plate-like workpiece W is opened, but the plate-like workpiece W is gripped by closing the plate-like workpiece clamping member 20. It can be held in the state.

  The plate-like workpiece clamping members 10 and 20 according to the present application include a pair of clamping pieces 11 and 12 that clamp the plate-like workpiece W, and a dripping induction claw disposed on the plate-like workpiece W side of each clamping piece 11 and 12. 15 and 16.

  The sandwiching pieces 11 and 12 are located on one side and the other side of the plate-like workpiece W, and are provided facing each other. The sandwiching pieces 11 and 12 include pressing portions that are urged or moved in a direction in which the plate-like workpiece W is sandwiched, that is, in a direction in which they are close to each other.

  In this Embodiment, the press part 13 of the plate-shaped workpiece clamping member 10 is comprised by the spring urged | biased in the direction which mutually adjoins. The holding pieces 11 and 12 hold the upper end portion of the plate-like workpiece W by the elastic force of the spring. Here, one clamping piece 11 of the plate-like workpiece clamping member 10 is fixed to the support frame 2, and the other clamping piece 12 is in a direction in which these clamping pieces 11 and 12 come close to each other via the pressing portion 13, that is, It is always energized in the closing direction.

  Moreover, the pressing part 14 of the plate-shaped workpiece clamping member 20 is comprised by the fastening member which can move to the direction which mutually adjoins. The clamping pieces 11 and 12 clamp the lower end portion of the plate-like workpiece W by the clamping force of the clamping member. Here, one clamping piece 11 of the plate-like workpiece clamping member 20 is fixed to the support frame 2, and the other clamping piece 12 is movably provided in the clamping direction by the pressing portion 14. By providing these pressing portions 13 or 14, each plate-like workpiece clamping member 10 or 20 can hold the plate-like workpiece W while being suspended.

  In the present embodiment, as the pressing portions 13 and 14 constituting the plate-like workpiece clamping member, the upper plate-like workpiece clamping member 10 is constituted by a spring, and the lower plate-like workpiece clamping member 20 is tightened. Although it comprises the member, in the present invention, the pressing portion is not particularly limited as long as it can be clamped by urging or moving the sandwiching pieces 11 and 12 in directions close to each other.

  Further, the material and size of the sandwiching pieces 11 and 12 are not particularly limited, and can be appropriately selected according to the material and size of the plate-like workpiece 10 to be sandwiched, the equipment used, and the like.

  Next, the dripping induction claws 15 and 16 included in the sandwiching pieces 11 and 12 will be described. The dripping guide claws 15 and 16 are disposed on the side close to the pair of sandwiching pieces 11 and 12 constituting the plate-like workpiece clamping members 10 and 20, and are disposed on the processing surface WS of the plate-like workpiece W to be sandwiched. It is a member that is pressed and held. These dripping induction claws 15 and 16 guide the processing liquid adhering to the dripping induction claws 15 and 16 contacting the plate-like workpiece W in a direction away from the plate-like workpiece W.

  Hereinafter, specific shapes of the dripping induction claws 15 and 16 will be described with reference to FIGS. 3 is a partially enlarged view of the portion indicated by X in FIG. 2, FIG. 4 is an explanatory diagram of the configuration of the dripping induction claw 15 or 16, and FIG. 5 is a schematic configuration diagram of the dripping induction claw 15 or 16 viewed from the workpiece W side. is there.

  As shown in FIG. 5, the dripping induction claws 15, 16 according to the present embodiment include three linear members 17... Bent into a U shape. Specifically, the dripping induction claws 15, 16 according to the present embodiment include an attachment portion (attachment plate) 18 that integrally fixes the linear members 17... At the lower end portion of the attachment portion 18. The linear members 17 are attached separately from each other.

  The linear member 17 bent in a U-shape is formed continuously from the lower end of the mounting portion 18 fixed to the holding pieces 11 and 12 and the lower end of the shaft portion 21 and is semicircular. A U-shaped portion 22 that is bent in a straight line, and a workpiece contact portion 23 that is continuously provided from the tip of the U-shaped portion 22, and the shaft portion 21, the U-shaped portion 22, and the workpiece contact portion 23. Are preferably constructed integrally. In FIG. 4, the ranges of the shaft portion 21, the U-shaped portion 22, and the workpiece contact portion 23 are shown as 21 </ b> A, 22 </ b> A, and 23 </ b> A.

  In the present embodiment, each of the dripping induction claws 15 and 16 has a cross-sectional diameter of each linear member 17 of preferably 1 mm or more and 2 mm or less, and more preferably 1 mm or more and 1.5 mm or less. When the wire member 17 is made of, for example, stainless steel or titanium in consideration of chemical resistance, a predetermined strength can be ensured if the cross-sectional diameter is 1 mm. In addition, since the dripping guide claws 15 and 16 include a plurality of the linear members 17, the gripping force of the plate-like workpiece W can be ensured. On the other hand, the smaller the diameter of the cross-section of the linear member 17, the smaller the trace remaining on the processing surface WS of the plate-like workpiece W. Therefore, 2 mm or less is preferable, and 1.5 mm is more preferable. preferable.

  Moreover, it is preferable that the diameter of the semicircular U-shaped part 22 is 6 mm or more and 8 mm or less. Since the treatment liquid adhering to the dripping guide claws 15 and 16 finally flows down along the U shape of the U-shaped portion 22, the treatment surface WS of the plate-like workpiece W to be sandwiched, the dripping guide claws 15, The distance from the lowermost portion dripping from 16 depends on the diameter of the U-shaped portion 22. From this point, if the diameter of the semicircular U-shaped portion 22 is 6 mm or more, the distance between the lowermost portion of the U-shaped portion 22 and the processing surface WS of the plate-like workpiece W to be sandwiched can be secured, and the U-shaped portion 22 It is possible to reliably separate the processing liquid dripping from the processing surface WS of the plate-like workpiece W. A larger diameter of the U-shaped portion 22 is desirable in that the treatment liquid dripped from the U-shaped portion 22 is separated from the treatment surface WS of the plate-like workpiece W. The amount of processing liquid to be increased. Therefore, the diameter of the U-shaped portion 22 is preferably 8 mm or less.

  The workpiece contact portion 23 preferably has an axial length of 0.5 mm or more and 2 mm or less. The workpiece contact portion 23 is a portion where the dripping induction claw 15 or 16 contacts the processing surface WS of the plate-like workpiece W. Since the dripping induction claws 15 and 16 according to the present application are provided with two or more linear members 17, even if the length of the workpiece contact portion 23 in the axial direction is 0.5 mm, it is surely plate-shaped. The workpiece W can be gripped. Further, by setting the length of the workpiece contact portion 23 in the axial direction to 2 mm or less, it is possible to minimize the traces of the dripping guide claws 15 and 16 remaining on the processing surface WS of the plate-like workpiece W. Thereby, compared with the past, the area | region required for the holding | grip of the plate-shaped workpiece | work W can be narrowed, and it becomes possible to hold | grip the edge part of the plate-shaped workpiece | work W with the liquid dripping guidance claws 15,16.

  In the present embodiment, the case where the dripping induction claw 15 or 16 includes the three linear members 17 is described as an example. However, the present application is not limited to this, and there are two What is necessary is just to provide the above linear member 17.

  The mounting portion 18 provided with the plurality of linear members 17 described above is preferably plate-shaped, and is preferably fixed to the sandwiching pieces 11 and 12 with screws or the like. Reference numeral 19 in FIG. 5 denotes a screw fixing hole. Any method can be used to attach the wire member 17 to the attachment portion 18, but it is preferable to fix the wire member 17 by welding or adhesion.

  Further, the upper portion 18A of the mounting portion 18 is preferably tapered as shown in FIG. 5 in order to prevent the processing liquid from collecting on the upper surface of the mounting portion 18.

  With the above-described configuration, as shown in FIG. 3, the workpiece W is suspended and held by the sandwiching pieces 11, 12 having the dripping guide claws 15, 16, so that the plate-like workpiece W has the dripping guide claws 15, The 16 wire members 17 are gripped in contact with the workpiece contact portions 23, 23. According to the present application, as described above, each of the dripping induction claws 15 and 16 includes the plurality of linear members 17, and therefore, the dripping induction claws 15 and 16 are formed by the minimum-thickness linear members. The trace of the dripping induction claw remaining on the processing surface WS of the plate-like workpiece W can be made as small as possible. In addition, the workpiece contact portion 23 is surely gripped within a range of 7 mm or less from the end surface of the plate-like workpiece W, for example, by setting the axial length to 2 mm or less. Thus, the influence of the processing surface WS of the workpiece W due to the marks of the dripping induction claws 15 and 16 can be minimized.

  Further, when the plate-like workpiece W is pulled up from the processing liquid, the processing liquid attached to the dripping induction claws 15 and 16 reaches the U-shaped portion 22 through the shaft portion 21 and the workpiece contact portion 23, and Due to the U-shape of the U-shaped portion 22, it is guided in a direction away from the plate-like workpiece W and can effectively be prevented from flowing down to the plate-like workpiece W.

  Therefore, according to the plate-shaped workpiece clamping member 10 according to the present application, it is difficult to cause appearance defects such as sagging stains on the processing surface WS of the plate-shaped workpiece W and marks of the dripping induction claws 15 and 16, and the high quality. It becomes possible to realize the processing of the plate-like workpiece W.

  As described above, the plate-like workpiece clamping member according to the present application can prevent inconvenience that the processing liquid flows down to the processing surface of the workpiece that occurs when the plate-like workpiece clamped with a simple configuration is pulled up from the processing solution. . Therefore, the present application is particularly useful in the case where the plating process is performed by moving in the processing liquid while the printed circuit board is suspended.

W Plate work (printed circuit board)
WS treatment surface 1 workpiece suspension jig 2 support frame 3, 4 support bar 5, 6 side bar 10, 20 plate-like workpiece clamping member 11, 12 clamping piece 13 pressing portion (spring)
14 Pressing part (tightening part)
15, 16 Dripping induction claw 17 Line member 18 Mounting portion (mounting plate)
21 Shaft part 22 U-shaped part 23 Workpiece contact part

Claims (5)

A plate-like workpiece clamping member that holds and holds a plate-like workpiece immersed in a treatment liquid,
A pair of clamping pieces for clamping the plate workpiece;
A dripping induction claw disposed on the plate-like workpiece side of each sandwiching piece,
The dripping induction claw comprises two or more linear members bent into a U shape,
A plate-shaped workpiece clamping member, wherein a diameter of a cross-section of the linear member is 1 mm or more and 1.5 mm or less .   The dripping induction claw is formed continuously from a shaft portion hanging from the sandwiching piece, a lower end of the shaft portion, a U-shaped portion bent in a semicircular shape, and a leading end of the U-shaped portion. The plate-like workpiece clamping member according to claim 1, further comprising a workpiece contact portion that is erected.   The plate-shaped workpiece clamping member according to claim 2, wherein a diameter of the U-shaped portion is 6 mm or more and 8 mm or less.   The plate-shaped workpiece clamping member according to claim 2 or 3, wherein a length of the workpiece contact portion in the axial direction is 0.5 mm or more and 2 mm or less.   The plate-like workpiece clamping member according to any one of claims 1 to 4, wherein the treatment liquid is a chemical treatment liquid.

Images