JPH0719617Y2 - Press type cam device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is to perform bending, drilling, etc. by changing the pressing force of the ram of the press machine laterally or oppositely to the pressing force. The present invention relates to a press-type cam device that can perform.

(Prior Art) When performing various processes by a press machine, generally, a cam driver fixed to the upper die of the press machine is moved,
By engaging with the cam driver, the cam slide is moved in the direction along the moving direction of the cam driver or in the direction orthogonal thereto, and the direction of the pressing force applied to the work piece is the direction of the pressing force of the ram or the ram. Change to a direction almost orthogonal to the pressing force direction,
Bending, shearing, drilling, etc. are performed.

When performing such processing, when the direction of the pressing force applied to the workpiece is the direction of the pressing force of the ram or the direction substantially orthogonal to the pressing force direction of the ram, for example, Japanese Utility Model Publication No. 59-29836 Various processes can be performed with high precision by the conventional technique disclosed in.

(Problems to be solved by the invention) However, when the pressing force applied to the workpiece is in the direction opposite to the pressing force of the ram, the desired processing is accurately performed due to the springback of the workpiece. Therefore, if the workpiece has such a portion, the present situation is that the portion is processed in two separate steps.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to accurately perform a desired machining in one step even if the direction in which the pressing force is applied is opposite to the pressing force of the ram. It is an object of the present invention to provide a press type cam device that can be performed and can reduce the processing cost.

(Means for Solving the Problems) A configuration of the present invention for achieving the above-mentioned object will be described with reference to the drawings corresponding to the embodiments.

The present invention is directed to a cam driver 1 having a first inclined surface 17 and a second inclined surface 19 which are reciprocally movable and spaced apart from each other in the moving direction, and in a direction substantially orthogonal to the moving direction of the cam driver 1. A first cam slide 9 that is movably arranged and that moves in a direction away from the cam driver 1 by engaging with the first inclined surface 17 as the cam driver 1 moves;
Is provided so as to be movable in a direction substantially parallel to the moving direction of the cam driver 1, and the first cam slide 9 is moved to move the first cam slide 9 to the first cam slide 9. A second cam slide 11 which is engaged and moves in a direction opposite to the moving direction of the cam driver 1, and a first machining tool attached at a position on the second cam slide 11 opposite to the cam driver 1. 51 and second cam slide 11
Is arranged so as to be movable in a direction substantially orthogonal to the moving direction of the cam driver 1, and the cam driver 1 is engaged with the second inclined surface 19 after the movement of the first cam driver 9 as the cam driver 1 moves. The third cam slide 13 that moves in a direction away from the second cam tool 1, and the second machining tool 59 attached to the third cam slide 13 at a position opposite to the cam driver 1.
And a biasing means 65 for biasing the third cam slide 13 toward the cam driver 1.

(Operation) By the movement of the cam driver 1, the first cam slide 9 moves in the direction away from the cam driver 1 via the first inclined surface 17 against the force of the biasing means 37.

As the first cam slide 9 moves, the second cam slide 11
Moves in the direction opposite to the moving direction of the cam driver 1, and the first machining tool 51 applies a force to the portion 7B of the molded product 7 in the direction opposite to the moving direction of the cam driver 1.

By the further movement of the cam driver 1, the third cam slide 13 moves in the direction away from the cam driver 1 through the second inclined surface 19 against the force of the biasing means 65, and the second machining tool 59.
Thus, a force is applied to the portion 7B of the molded product 7 in the direction away from the cam driver 1.

Due to the movements of the second cam slide 11 and the third cam slide 13 as described above, desired processing can be accurately performed even if the direction in which the pressing force is applied is opposite to the pressing force of the ram.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

1 is a sectional side view of the cam device in a state where the cam driver is raised, FIG. 2 is a sectional side view of the same in which the first cam slide is moved by the first inclined surface, and FIG. 3 is a second inclined surface. The cross-sectional side view of the same 3rd cam slide in the state which was moved by is shown.

1 is a cam driver, 3 is a die, and a pad 5 is on the die 3.
The steel plate 7, which is the product to be molded, is sandwiched between the cam driver 1 and the die 3 by the first, second and third cam slides 9, 11, 1
3 is built in and the base 15 is arranged.

The cam driver 1 is fixed to the upper die of the press machine and moves up and down by the operation of the ram.

First and second inclined surfaces 17 and 19 are formed on the cam driver 1 at intervals vertically and horizontally, and the second inclined surface 19 is formed by a wear plate 21 attached to the cam driver 1. ing.

The base 15 has a bottom surface portion 15A as shown in FIG.
A front surface portion 15B located on the cam driver 1 side, left and right side surface portions 15C, and a rear surface portion 15D located on the die 3 side,
It is open at the top.

The first cam slide 9 is inserted from the opening 23 of the front surface portion 15B, is placed on the bottom surface portion 15A of the base 15, and is guided by the left and right side surface portions 15C and is movable in a direction toward and away from the cam driver 1. Built into the base 15.

An inclined surface 25 that can be engaged with the first inclined surface 17 of the cam driver 1 is formed on a portion of the first cam slide 9 that projects from the opening 23. In addition, an inclined surface 27 that engages with the second cam slide 11 is formed on the upper portion, and the bottom surface is indicated by V in FIG.
As shown in the cross-sectional view taken along the line V, a bifurcated locking piece 29 is provided in a protruding manner. Further, as shown in the cross-sectional view taken along the line VI-VI in FIG. A guide groove 31 is formed.

The locking piece 29 is arranged in the notch 33 in the bottom surface portion 15A of the base 15, and the pin 35 is provided in the notch 33 so as to project.
The spring is supported by the elastic force of the coil spring 37 wound around
The first cam slide 9 is biased in a direction projecting from the opening 23 through the 39 and the locking piece 29.

As shown in FIG. 1, the second cam slide 11 has an inclined surface 41 which is engageable with the inclined surface 27 at the bottom thereof, and
As shown in FIG. 6, guide pieces 43 project from left and right of the bottom of the die 3 side portion of the second cam slide 11, and the guide pieces 43 are engaged with the guide grooves 31.

Further, a concave portion 45 is formed in the center of the second cam slide 11, and the wall portions surrounding the concave portion 45 are formed on the front surface portion 15B of the base 15 and the left and right side surface portions 15C, respectively, as shown in FIGS. 1 and 5. And the rear surface portion 15D via the guide plate 47, and the movement of the first cam slide 9 causes the inclined surfaces 27, 4
By the engagement of 1 and the engagement of the guide piece 43 and the guide groove 31, it is arranged so as to be movable only in the vertical direction.

Further, as shown in FIG. 5, a lateral guide surface 49A and a vertical guide surface 49B are formed on the left and right side portions of the recess 45, respectively.

Further, a punch 51 is attached to the upper end of the second cam slide 11 on the die 3 side.

As shown in FIG. 5, the left and right sides of the third cam slide 13 are engaged with the lateral guide surface 49A and the vertical guide surface 49B via the slide plate 53 and the guide plate 55, respectively, and approach the cam driver 1. It is arranged so as to be movable only in the direction of separation.

The upper portion of the third cam slide 13 on the cam driver 1 side is engaged with the second inclined surface 19 after the movement of the first cam slide 9 by the engagement with the first inclined surface 17 as the cam driver 1 moves. An inclined surface 57 is formed.

Further, a punch 59 is attached to a portion of the third cam slide 13 opposite to the cam driver 1, and a bifurcated locking piece 61 is projected from the bottom.

The locking piece 61 is disposed in the recess 45 of the second cam slide 11, a pin 63 is provided in the recess 45, and the spring support 67 is engaged by the elastic force of the coil spring 65 wound around the pin 63. Stop
The third cam slide 13 is biased toward the cam driver 1 via 61.

Further, the locking piece 61 is locked to the guide plate 69 arranged on the cam driver 1 side in the recess 45, whereby the rear end position of the third cam slide 13 in the cam driver 1 direction is regulated.

Next, with reference to FIG. 7, a case where the protruding piece 7B of the steel plate 7 is bent in the direction opposite to the moving direction of the cam driver 1 will be described.

As shown in FIG. 7 (A), four projecting pieces are formed around the steel plate 7, and when the cam driver 1 moves downward, two projecting pieces 7A therein are formed by a conventional cam slide (not shown). The cam driver 1 is bent in the direction along the downward direction, the other bending piece 7B is bent in the direction opposite to the downward direction of the cam driver 1, and these three projecting pieces 7A, 7A, 7B are cams. The driver 1 is molded in one step by the downward movement.

More specifically, first, as the cam driver 1 moves downward, the first cam slide 9 resists the elastic force of the coil spring 37 via the first inclined surface 17 and the inclined surface 25 as shown in FIG. And move to the die 3 side.

As the first cam slide 9 moves to the die 3 side, the inclined surface
The second cam slide 11 moves upward via 27 and 41, and the punch 51 bends the protruding piece 7B upward. The protruding piece 7B is roughly bent as shown in FIG. 2 and FIG. 7 (B). It will be in a state of being

Then, by further downward movement of the cam driver 1, the second inclined surface
19 engages the inclined surface 57, and as shown in FIG. 3, the third cam slide 13 is moved to the die 3 side against the elastic force of the coil spring 65, and the protruding piece bent by the punch 59.
7B is further pressed to the pad 5 side, whereby the protruding piece 7B is bent with high precision as shown in FIG. 7C, and the bending process of the protruding pieces 7A, 7A, 7B is completed.

In the embodiment, the case of bending is described, but other processing such as drilling and notching can be performed.

(Effects of the Invention) As is apparent from the above description, according to the press type cam device of the present invention, even if the direction of applying the pressing force is opposite to the pressing force of the ram, processing such as bending is performed. Can be performed with high accuracy, and thus various processes can be performed in one step, and the processing cost can be reduced.

[Brief description of drawings]

1 is a sectional side view of the cam device in a state where the cam driver is raised, FIG. 2 is a sectional side view of the same in which the first cam slide is moved by the first inclined surface, and FIG. 3 is a second inclined surface. FIG. 4 is a perspective view of the base and the first cam slide, FIG. 5 is a sectional view taken along the line VV of FIG. 1, and FIG. VI of Figure 1
FIG. 7 is a cross-sectional view taken along line VI, and FIG. 7 is a perspective view showing a molding process of a molded product. In the figure, 1 is a cam driver, 3 is a die, 5 is a pad, 9
Is the first cam slide, 11 is the second cam slide, and 13 is the third
Cam slide, 15 is base, 17 is first inclined surface, 19 is second
The inclined surfaces, 37 and 65 are coil springs, and 51 and 59 are punches.

Claims (1)

[Scope of utility model registration request] 1. A cam driver which is reciprocally movable and provided with a first inclined surface and a second inclined surface at positions spaced apart in the moving direction, and is movable in a direction substantially orthogonal to the moving direction of the cam driver. A first cam slide that is disposed and that moves in a direction away from the cam driver by engaging with the first inclined surface as the cam driver moves; and a biasing unit that biases the first cam slide toward the cam driver, The first cam slide is arranged so as to be movable in a direction substantially parallel to the moving direction of the cam driver, and the first cam slide moves the first cam slide.
A second cam slide that engages with the cam slide and moves in a direction opposite to the moving direction of the cam driver; and a first machining tool attached to a position of the second cam slide opposite to the cam driver. The second cam slide is movably arranged in a direction substantially orthogonal to the moving direction of the cam driver, and the second cam surface is engaged with the second inclined surface after the first cam driver moves in accordance with the movement of the cam driver. A third cam slide that moves in a direction away from the second cam, a second machining tool attached to a position of the third cam slide opposite to the cam driver, and urges the third cam slide toward the cam driver. A press-type cam device comprising: a biasing unit.