JPS646183Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention involves inserting metal claws cut out from the material to be fixed into holes in the base material, bending the claws, and strongly caulking them together. This relates to a claw bending and caulking device used for firmly fixing.

(Prior art) For example, in order to attach objects such as ornaments and armrests to a base material such as an automobile door trim, a claw cut from the surface of the material to be fixed is inserted into a hole in the base material and then bent. The common method is to tighten the nails, and the nail bending and caulking devices for this purpose include bending and caulking devices that are equipped with separate cylinders for bending the nails and cylinders for nail caulking, and rollers that bend and caulk the nails. A bending and caulking device that simultaneously performs the bending and caulking, or a bending and caulking device that uses a swing link to bend and caulk the pawl, etc. are used. However, the cylinder type has a complicated structure, and the base material is curved, so if the direction of bending of the claws is not constant, a large number of cylinders must be installed. The swinging link type had the disadvantage that it could not be used for claws standing on slopes, as it was impossible to completely swage the claws, making it difficult to adjust the degree of swaging.

(Problems that the invention attempts to solve) This invention solves the conventional problems as mentioned above,
It was completed with the aim of creating a claw bending staking device that has a simple structure and can completely swage nails that could not be completely swaged using conventional devices such as claws that stand on an inclined surface. It is something.

(Means for Solving the Problems) The present invention provides a guide block on the back side of the vertical side of an inverted L-shaped block that is moved up and down by a cylinder, and a guide shaft is fitted into the guide block so as to be able to slide up and down. Inside the block, a nail bending and caulking punch is provided with a roller that contacts the cam plate at the lower end and can be swung through a parallel link while maintaining the vertical state until the upper end contacts the inner lower surface of the block. and a cam plate parallel to the inner lower surface of the block is attached to the lower end of the guide shaft with a length such that a downward slope formed on the upper surface of the tip comes into contact with the roller when the punch rises to the highest level, Further, between the cam plate and the guide block, a spring is provided on the guide shaft to always push the cam plate downward, and a tension spring is provided to always push the punch toward the guide shaft. be.

(Embodiments) Next, the present invention will be described in detail with reference to illustrated embodiments.

Reference numeral 50 indicates a base material such as an automobile door trim having a hole 53 transparent therein, 52 indicates a material to be fixed such as an ornament that is fixed to the surface of the base material 50, and a claw 51 is provided on the back surface of the base material 50. It is cut and raised, and its surface is covered with a skin material 54. The material to be fixed 52 is overlapped with the base material 50 so that its claws 51 protrude from the holes 53 of the base material 50, and is set on the upper surface of the receiving jig 60.

Next, the claw bending and caulking device of the present invention uses a cylinder 1 as a power source, and an elevating plate 4 is swingably attached to the lower end of the piston rod 2 via a universal joint 3. A base 6 having a U-shaped cross section is clamped to the base 4 by an appropriate number of clamps 5. An inverted L-shaped block 9 is attached to the lower surface of the base 6 via tilt adjustment plates 7, 7 and bolts 8 so that the angle can be adjusted freely. A cam plate 10 having a U-shaped plane that comes into contact with the surface is mounted so as to be vertically movable. The cam plate 10 has a vertical guide shaft 11 at its rear end and is slidably fitted into a guide block 12 protruding from the back surface of the block 9, and has a spring wound around the guide shaft 11. 13 constantly pushes the cam plate 10 downward against the block 9. On the other hand, inside the block 9, a punch 15 for bending and caulking is provided with a roller 14 at its lower end that comes into contact with the upper surface of the cam plate 10, and can be moved in the center of the U-shaped cam plate 10 via a parallel link 16. installed. Due to the action of the parallel link 16, the punch 15 can move as shown in FIGS. 1 to 3 while always maintaining a state perpendicular to the upper surface of the block 9 and the upper surface of the base material 50. Become. Since a tension spring 17 is tensioned between the central axis of the roller 14 and the base of the cam plate 10, the punch 15
is in close contact with the vertical surface 18 of the block 9. Also, the upper end surface 19 of the punch 15 is connected to the block 9.
A downward slope 21 is formed at the tip of the cam plate 10, which has a length such that the roller 14 comes into contact with the punch 15 when the punch 15 moves until it comes into contact with the inner lower surface 20 of the cam plate. As shown in FIG. 3, the punch 15 can be further lowered relative to the cam plate 10.

(Function) As shown in FIG.
2 is placed on the upper side of the claw 51 cut and raised from the material to be fixed 52, and the cylinder 1 is applied to lower the inverted L-shaped block 9, so that the block 9 can be moved vertically below it. When the cam plate 10 attached to the base material 50 comes into contact with the surface of the base material 50 and the block 9 is further lowered, the spring 1 is released as shown in FIG.
As the distance between the block 9 and the cam plate 10 becomes smaller while compressing the punch 3, the roller 14 at the lower end of the punch 15 is pushed up by the upper surface of the cam plate 10, and the punch 15 is maintained in a vertical state by the parallel link 16. Gradually move to the right. At this time, the outer surface 22 of the punch 15 gradually bends the claw 51, and as the block 9 further descends, the upper end surface 19 of the punch 15 is directly pressed by the inner lower surface 20 of the block 9, as shown in FIG. At the same time, the roller 14 reaches the downward slope 21 at the tip of the cam plate 10 and becomes able to descend, so that the pawl 51 is strongly caulked by the lower surface of the punch 15. Then piston rod 2
If you raise the spring 13 and the tension spring 17
The force causes the punch 15 to return to the position shown in FIG. In addition, if it is desired to caulk a large number of claws 51 at the same time, a large number of bending caulking devices can be attached to the elevating plate 4, and in that case, the angle of each punch 15 can be adjusted independently using the inclination adjustment plate 7. Therefore, even when the claws 51 stand on an inclined surface, all the claws 51 can be completely bent and caulked.

(Effects of the invention) As is clear from the above explanation, the present invention has a simple structure that allows the bending and caulking of the nail to be performed smoothly and reliably in a series of operations. Since it is possible to completely bend and caulk even nails, its practical value is extremely great as it solves the problems of conventional nail bending and caulking devices.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, and FIG. 3 are all explanatory views of the operation of the apparatus according to the embodiment of the present invention. 1: cylinder, 9: block, 10: cam plate, 12: guide block, 13: spring,
14: roller, 15: punch, 16: parallel link, 17: tension spring, 21: slope.

Claims (1)

[Scope of utility model registration request] A guide block 12 is provided on the back of the vertical side of the inverted L-shaped block 9 that is moved up and down by the cylinder 1, and a guide shaft 11 is fitted into this so as to be able to slide up and down. A nail bending and caulking punch 15 equipped with a roller 14 that comes into contact with the cam plate is connected to the inner lower surface 2 of the block 9 while maintaining the vertical state via a parallel link 16.
At the lower end of the guide shaft 11, there is a cam plate 10 parallel to the inner lower surface 20 of the block 9, and a downward slope 21 formed on the upper surface of the tip thereof.
Further, between this cam plate 10 and the guide block 12, a spring 13 is provided on the guide shaft 11 to always spring the cam plate 10 downward, and the punch A claw bending and caulking device characterized in that a tension spring 17 is provided which always springs a tension spring 15 toward a guide shaft 11.