JPH0615027Y2 - Resin sheet adhesion jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a resin sheet contact jig used for contacting a resin sheet with the recess of a workpiece having an arcuate recess.

(Prior Art) Generally, in a production factory such as an automobile factory,
As shown in FIGS. 6 and 6, when a resin sheet 3 is melt-bonded to an arc-shaped recess 2 formed in a work 1 such as a cam cap body to produce a product 4 such as a cam cap, a cylindrical shape is prepared beforehand. The jig 5 is prepared, the resin sheet 3 is placed in the concave portion 2 of the work 1, and the work 1 is heated while pressing the jig 5 with the jig 5 to melt the contact portion of the resin sheet 3, The sheet 3 was adhered to the work 1 to obtain the product 4.

By the way, when the resin sheet 3 is pressed using such a jig 5, the resin sheet 3 is not necessarily pressed over the entire surface depending on the shapes of the recess 2 and the jig 5, and the resin sheet 3 is properly applied to the work 1. Sometimes couldn't bond.
For example, when the jig 5 having a diameter larger than the inner diameter of the recess 2 is used as shown in FIG. 7, the resin sheet 3 at the bottom of the recess 2 is not pressed. Further, when the jig 5 having a diameter smaller than the inner diameter of the recess 2 is used as shown in FIG. 8, the resin sheet 3 at the end of the recess 2 is not pressed and a so-called resin sagging state occurs as shown in FIG. Occurs. As a result, in any of the above cases, the resin sheet 3 cannot be properly melt-bonded to the work 1.

On the other hand, as shown in Japanese Utility Model Laid-Open No. 62-157214, a plurality of carrier pieces are provided on a pedestal through disc springs, parts (shoe linings) are placed on these carrier pieces, and shoes are further mounted thereon. Brake shoe holding (rim) of the brake shoe body to which the lining should be adhered is overlapped, this rim is pressed toward the pedestal, and the reaction force is used to adhere the shoe lining and rim in a uniform state It is conceivable to use a device.

Further, with respect to the above-mentioned problems, all jigs 5 having a size matching the concave portion 2 are prepared in advance according to the type of the work 1, and the corresponding jigs 5 are used according to the type of the work 1. It is possible to press.

(Problems to be Solved by the Invention) However, in the device disclosed in Japanese Utility Model Laid-Open No. 62-157214, a plurality of disc springs and carrier pieces must be provided on the pedestal, which complicates the configuration.

In addition, as described above, when all jigs having a shape matching the concave portion of the workpiece are prepared to solve the above problems,
There were the following problems. That is, in the case of a work such as a cam cap, there are generally many types used in production plants, and the inner diameters of the recesses are often different. Therefore, it has not been a practical solution to prepare all the jigs corresponding to the diameter of the recess of the work in the production factory.

The present invention has been made to solve the above problems, and with a simple configuration, the adhesive sheet can be pressed over the entire surface of the adhesive sheet into the concave portion of the work according to the size of the diameter of the concave portion of the work. It is an object of the present invention to provide a resin sheet contact jig capable of appropriately adhering a resin sheet to workpieces of the above types and achieving proper melt adhesion.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a fixing base on which a work having a substantially arcuate concave portion to which a molding resin sheet is adhered is placed, and a U-shaped fixing base. An elastically deformable pressing member that is arranged so as to be superposed on a resin sheet on a work placed on a fixed table, and is arranged so as to be vertically movable with respect to the pressing member and engages with a U-shaped inner surface of the pressing member. The pressing member is provided with a pressing member that applies a downward force and a force in the opening direction.

(Operation) According to the present invention, when the pressing member is placed on the resin sheet placed in the concave portion of the work according to the above configuration and the pressing member is operated to apply the downward force and the opening force to the pressing member, The pressing member not only pushes the resin sheet downward, but also opens it to the left and right to press the resin sheet securely to the end of the resin sheet, so the resin sheet can be adhered to the workpiece over the entire surface with a simple configuration, and Appropriate melt adhesion can be achieved. Further, since the opening state of the pressing member is adjusted according to the inner diameter of the recess of the work, it is possible to deal with the variation of the inner diameter of the recess of the work, so that the resin sheet can be appropriately brought into close contact with the works having different inner diameters of the recess.

(Embodiment) A resin sheet adhering jig according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 and 2.

In the figure, 6 indicates a fixed base, and the fixed base 6 has a work 1
A recess 8 having a shape matching the lower surface 7 is formed. The work 1 is housed in the recess 8 and fixed to the solid base 6.

Further, 9 indicates a guide. The guide 9 has a substantially U shape,
It is placed on the fixed base 6 like a lid and fixed to the fixed base 6 with bolts 10.

A U-shaped pressing member 11 is arranged inside the guide 9. The lower surface 12 of the pressing member 11 forms a substantially circular arc. Also,
A V-shaped groove 14 is formed on the upper surface portion 13 side. A circular groove 15 is further formed at the bottom of the V-shaped groove 14. The pressing member 11 is elastically deformable, and is bent leftward and rightward around the circular groove 15. Further, guide rods 17, 17 to be inserted into the long holes 16, 16 formed in the guide 9 are provided on both sides.

A hole 18 is formed in the upper surface of the guide 9, and a pressing member 19 is vertically movably inserted into the hole 18. Pressing member
A wedge portion 20 having a substantially triangular shape is provided in the lower portion of 19.
The tip angle of the wedge portion 20 is set to be slightly larger than the angle of the V-shaped groove 14. Length l at the base end portion 21 of the wedge portion 20
Is set to be slightly larger than the horizontal distance m at the intermediate portion of both wall surfaces 14a forming the V-shaped groove 14,
The lowering of 19 causes the base end portion 21 to come into contact with the V-shaped groove 14 from near the middle portion thereof. Wall of V-shaped groove 14
The upper part of the pressing member 19 is in contact with 14a and protrudes from the hole 18, and is connected to the arm 23 of the clamper 22 at that part. The clamper 22 has a handle 23, and when the handle 23 is operated, the arm 23 is rotated around a fulcrum (not shown) to vertically move the pressing member 19.

The operation of the resin sheet contact jig constructed as described above will be described below.

First, the work 1 is set on the fixed base 6, the resin sheet 3 is placed on the work 1, the guide 9 is fixed to the fixed base 6, and the pressing member 19 is moved downward by the clamper 22.

Then, the base end portion 21 of the wedge portion 20 contacts the wall surface 14a of the V-shaped groove 14, and the pressing member 19 presses the pressing member 11 by this contact. By this pressing, the pressing member 11 presses the resin sheet 3 downward, and gradually opens to the left and right, and by opening in this way left and right, the resin sheet 3 is pressed over the entire circumferential direction. As a result, even if the inner diameter of the recessed portion 2 of the work 1 varies, the resin sheet 3 can be surely brought into close contact with the work 1 over the entire surface with the simple structure as described above. There is no need to leave a part that is not adhered like.

Then, in such a state that the resin sheet 3 is closely attached to the work 1, the temperature of the work 1 is raised to melt the contact portion of the resin sheet 3, and this is adhered to the work 1 as shown in FIG. 6, for example. Get the best product 4.

When the ratio of occurrence of so-called "sagging" as shown in FIG. 9 was examined by an experiment using the above-mentioned resin sheet adhesion jig, the results shown by Δ in FIG. 3 were obtained with the temperature of the work 1 as the horizontal axis. Obtained. Further, when an experiment was carried out using the jig 5 shown in FIG. 5 under the same conditions, the results shown by ◯ were obtained, and it was found that the sagging occurrence rate can be greatly reduced by the above-mentioned resin sheet contact jig.

Further, when the inner diameter and the adhesive force of the work 1 are compared and verified under the same conditions with the above-described resin sheet contact jig and the jig 5 shown in FIG. 5, the result as shown in FIG. , And the jig 5 in FIG. 5 is shown by a circle), and it was possible to prove that the above-mentioned resin sheet adhesion jig is excellent.

In this embodiment, the V-shaped groove 14 is formed, and the pressing member
Since a downward force and a force in the opening direction are applied to the pressing member 11 with the downward movement of 19, the structure is simplified by this amount. Further, in this case, a groove having a gently curved surface (for example, a U-shaped groove) may be used instead of the V-shaped groove.

(Effects of the Invention) As described above, according to the present invention, the pressing member is pushed by the pressing member to open to the left and right, and the force received from the pressing member is transmitted to the resin sheet. It has an effect that it can be surely adhered to the resin, and that an appropriate melt adhesion can be achieved. Further, even if the inner diameter of the concave portion of the work varies, the resin sheet can be pressed according to the inner diameter, so that there is an effect that the variation of the inner diameter can be dealt with and the resin sheet can be appropriately adhered to the works having different inner diameters.

[Brief description of drawings]

FIG. 1 is an exploded front view showing a resin sheet contact jig according to an embodiment of the present invention, FIG. 2 is a front view showing an operation example of the resin sheet contact jig, and FIG. 3 is the resin sheet contact jig. FIG. 4 is a characteristic diagram showing the sagging rate in the conventional example, FIG. 4 is a characteristic diagram showing the adhesive force of the resin sheet by the resin sheet adhesion jig and the conventional example jig, and FIG. 6 is a front view showing a tool, FIG. 6 is a front view showing an example of a product formed of a work and a resin sheet, and FIGS. 7 and 8 are the diameters of the jigs in FIG. 5 being larger than the inner diameter of the recess of the work. And FIG. 9 is a front view showing a case where the sagging occurs in the process in FIG. 8, respectively. 1 …… Workpiece 2 …… Concave 3 …… Resin sheet 6 …… Fixing stand 11 …… Pressing member 19 …… Pressing member

Claims (1)

[Scope of utility model registration request] 1. A fixed base on which a work having a substantially arcuate concave portion to which a molded resin sheet is adhered is placed, and a U-shaped fixed base placed on the work placed on the fixed base. And an elastically deformable pressing member, which is arranged so as to be movable up and down with respect to the pressing member and is engaged with the U-shaped inner surface of the pressing member to apply a downward force and an opening force to the pressing member. A resin sheet contact jig, which is provided with a pressing member to be applied.