JPH0619935U - Plate clamp claw bending mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a bending mechanism capable of simultaneously bending all clamp claws in one operation. [Structure] The folding metal fitting 10 is divided into two parts, left and right. The folding metal fitting 10 is provided with a rising prevention portion 16, a side surface pressing portion 17, and a relief portion 18. The floating prevention portion 16 presses the plate 1 from above before the side surface pressing portion 17 abuts. The side surface pressing portion 17 has a finished shape in which the clamp claw 2 is bent along the planet carrier 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plate clamp claw bending mechanism, which is applied to, for example, bending work of a clamp claw of a circular plate to be clamped by a planet carrier of an automatic transmission for an automobile, and particularly to a plurality of clutches in one operation. The present invention relates to a plate clamp claw bending mechanism capable of bending all pump claws at the same time.

[0002]

[Prior art]

 For example, as shown in FIG. 2, a circular plate to be clamped by a planet carrier of an automatic transmission for automobiles has six clamping claws 2 projecting from the outer periphery of a doughnut-shaped plate 1. As shown in FIG. 3, the plate 1 is obtained by bending the clamp claw 2 at a substantially right angle and is set at a predetermined position of the planet carrier 3. The lower end portion 2a of the clamp claw 2 is bent inward along the taper portion 3a of the planet carrier 3, but in the conventional mechanism, the clamp claw 2 is cut six times at a single place or at the center. At the same time, two places facing each other on a straight line passing through were bent three times at a time.

When all of the six clamp claws 2 are bent inward so as to come into contact with the tapered portion 3a, the plate 1 does not reliably clamp the planet carrier 3 and come off.

[0004]

[Problems to be solved by the device]

 However, in the above-described conventional bending mechanism, it is necessary to repeat the same work three or six times to bend the clamp claws at six places, which is disadvantageous in that the number of work steps increases. Further, in order to sequentially bend all the clamp claws, a mechanism for rotating either the folding mechanism side or the work (for example, the planet carrier and the plate) is required, which makes the entire device complicated. Was there.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a plate clamp claw bending mechanism capable of simultaneously bending all the clamp claws in a single operation and having a simple structure.

[0006]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems, and after placing a circular plate having a plurality of claw claws bent downward at a substantially right angle from the outer periphery at a predetermined position of an assembled component, In a plate clamp claw bending mechanism that bends the lower end of the clamp claw further inward so as to follow the shape of the part to be assembled and clamps it, a lifting prevention part that presses the plate from above and a finished shape. The bending metal fitting, which comprises the side pressing portion and the concave relief portion formed at the position corresponding to the corner portion of the clamp claw, is divided into two parts, and the left and right bending metal members are simultaneously operated. The plate clamp claw bending mechanism is characterized in that it is configured to press the clamp claw.

[0007]

[Action]

 According to the above-mentioned means, the folding metal fittings that have been advanced from the left and right simultaneously, the floating prevention part first reaches the plate and presses it from above, and then the side pressing part has a clamp claw different from the finished shape. Abut the lower end of the. If the bending metal fitting further advances from this state, the side surface pressing portion presses the lower end of the clamp claw toward the center over the entire circumference and bends it inward, and when the split surfaces of the left and right metal fittings come into contact with each other, The finished shape follows the shape of the assembled parts. Therefore, all the clamp claws can be bent with a single pressing, and thus the clamped parts are completely clamped.

[0008]

【Example】

 An embodiment of the bending mechanism of the plate clamp claw according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 1 (a), bending metal fittings 10 and 10 that are divided into two parts on the left and right are connected to an air cylinder 13 via link mechanisms 11 and 12, respectively, and an arrow 15 is attached to a set center 14 of the work. It is possible to press from the left and right simultaneously.

As shown in the cross-sectional view of the main part shown in FIG. 1 (b), the folding metal fitting 10 has a rising prevention portion 16 for pressing the plate 1 from above and a side surface shape of the planet carrier 3 which is a work. In order to bend the clamp claw 2 along with it, the clamp claw 2 is provided with a side surface pressing portion 17 conforming to its finished shape and a concave relief portion 18 formed at a position corresponding to a corner of the clamp claw 2. The side surface pressing portion 17 has a tapered portion 3a so that the lower end portion 2a of the claw portion 2 protruding from the plate 1 and bent substantially vertically can be further bent along the taper portion 3a of the planet carrier 3. It has parallel bent portions 17a. Further, the floating prevention portion 16 projects toward the set center 14 side so that the side surface pressing portion 17 reaches the plate 1 before the pressing of the clamp claw 2 is started. In addition, it is preferable to form a tapered surface 16a at the lower end of the rising prevention portion 16 so that a smooth sliding is possible.

Now, the operation of the plate clamp claw bending mechanism having the above-described configuration will be described based on the operation sequence. First, the planet carrier 3 is placed in alignment with the set center 14 (using a positioning jig or the like not shown), and the plate 1 is placed on the upper surface thereof. This plate 1 has six clamp claws 2 protruding from a donut-shaped disc and bent downward at a substantially right angle, and the inner diameter of the corner of the clamp claw 2 matches the outer diameter of the planet carrier 3. There is.

When the preparation for bending the clamp claw 2 is completed in this way, compressed air is supplied to the air cylinder 13, and the pair of left and right folding metal fittings 10, 10 are respectively moved toward the set center 14 via the link mechanisms 11, 12. Operate at the same time. In the folding metal fittings 10 and 10 that move toward the center of the set, the tapered surface 16a first slides smoothly onto the plate, and the floating prevention portion 16 holds the plate 1 between the upper surface of the planet carrier 3 and floats. Prevent rising. When the folding metal fittings 10, 10 are further slid in this direction toward the center 14 of the set, the bent portion 17a of the side surface pressing portion 17 comes into contact with the lower end portion 2a of the clamp claw 2, and the tapered portion 3a is pressed while being pushed. Bend 6 pieces at the same time. When the split surfaces 10a of the two folding metal fittings 10, 10 come into contact with each other, the lower end 2a is completely bent along the tapered portion 3a, and the clamping of the planet carrier 3 by the clamp claws 2 of the plate 1 is completed. To do. In addition, since the relief portion 18 is provided, bending of the clamp claw 2 can be performed without any trouble, and generation of defective products can be prevented.

In the above embodiment, the six clamp claws 2 are bent at the same time. However, unless the clamp claws 2 are located near the split surface 10a of the folding metal fitting 10, they are bent at the same time. The number of clamp claws that can be formed is not limited to six. Further, the air cylinder 13 and the link mechanisms 11 and 12 for actuating the folding metal fitting 10 may be modified in various ways using known techniques, for example, a hydraulic cylinder may be used instead of the air cylinder. Needless to say.

[0014]

[Effect of device]

 According to the plate clamp claw bending mechanism of the present invention described above, all the clamp claws can be simultaneously bent in a single bending operation, and the work efficiency can be greatly improved.

[Brief description of drawings]

1A and 1B are views showing an embodiment of a bending mechanism of a plate clamp claw according to the present invention, in which FIG. 1A is a plan view showing an outline of the entire configuration, and FIG. 1B is a sectional view of a main part during bending work. is there.

FIG. 2 is a plan view showing a circular plate provided with clamp claws.

3 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 plate 2 clamp claws 3 planet carrier 10 folding metal fittings 14 center of set 16 lifting prevention part 17 side pressing part 18 relief part

Claims (1)

[Scope of utility model registration request] 1. A circular plate having a plurality of clamp claws bent downward at a substantially right angle and protruding from the outer periphery is placed on a predetermined position of an assembly target part, and then the lower end of the clamp claw is covered by the cover. In a bending mechanism of a plate clamp claw that further bends and clamps inward so as to follow the shape of an assembly part, a floating prevention portion that presses the plate from above, a side surface pressing portion that matches the finished shape, and A bending metal fitting comprising a corner portion of the clamp pawl and a concave escape portion formed at a corresponding position is divided into two parts, and a pair of left and right bending metal fittings are simultaneously operated to press the clamp pawl. A plate clamp claw bending mechanism characterized by the above.