JPS59141334A - Automatic caulking device - Google Patents

Abstract

PURPOSE:To reduce assembling time and to improve quality by subjecting the plural members which are subjected to pressing such as blanking, ejecting, burring, bending or the like in response to press operation to cutting, conveying and caulking in dies. CONSTITUTION:As the surface of a press ram descends, a side plate 1 and a plate material 2 which are connected to each other enter first the inside of a stripper plate 11 and a die plate 12 and the connecting part 1e is cut by the blade edge of the plates 11, 12 and the cutting and bending of the material 2 are completed by the bending edges on the plates 11, 12. Then the slopes of cams 3, 4 contact with the plates. The cam 4 moves in the plate 11 in the direction approximately orthogonal with the sliding direction of the press and the plate 1 advances. The blade edge of a stripper liner 5 is passed to cut the plate 1 and the part 1a during advancing of the cam 4. The plate 1 continues to advance, until the advance ends in the position where the caulking pawls 2a of the material 2 enter the square hole 1d of the plate 1. The slopes of a working member 6 and a caulking punch 7 contact with each other in this stage and the punch 7 advances to open the pawls 2a in both ways, thereby caulking the plate material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic tightening device, and particularly relates to an automatic tightening device for punching in a mold,
The aim is to reduce openings during assembly, improve product quality, and achieve stable production by cutting, transporting, and engraving multiple pressed parts such as ejecting, burring, and bending in a mold. .

Figure 1 is a perspective view of the case, and Figure 2 is a developed view of the case.In this case, the partition plate (2b) protrudes from the side plate (2c), so it cannot be integrated. , the side plate (1) is separated into a plate material (2).

The conventional processing method for this side plate (1) and plate material (2) is that after bending the plate material (2), the defeating claw (2a) of the plate material (2) is inserted into the square hole (1d) of the side plate (1). , by hand or automatic machine;
As shown in Fig. 10, after assembly, as shown in Fig. 1,
It was a shark processing process, but with this processing method, the dimensions of each part change (shape deforms) due to the force of tightening.
However, it still had the disadvantage of poor work efficiency.

The present invention has been made in view of the vaporization issues, and the above-mentioned drawbacks have been solved by employing the structure described below.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIGS. 3 to 5 are sectional views of main parts inside the press mold. In the figure, (9) is the punch plate, and the upper part is
There is a backing plate and a punch holder (not shown), and the punch holder is fixed to the ram surface of the press sliding part. (3) This cam (3) is housed and fixed in the punch plate (9). (4) is a cam, and the cam (4) is formed with oblique +i (4a) and (4b) around 1. Inclination UkI (4a) of this cam (4),
(4b) is in contact with the inclined surfaces (3a) and (3b) of the cam (3). This cam (4) K is provided with a hole (4C) from the top surface for accommodating the entire coil spring (8). Further, the cam (4) is provided with a hole (4d) for accommodating the diaphragm punch (7) so as to be orthogonal to the lower part of the hole (4C). This squeeze punch (7) is slidable within the hole (4d) of the cam (4). (6) is an operating member, and this operating member (6) is inserted into a through hole (4g) formed at the bottom of the hole (4C) of the cam (4), and is slidable within the through hole (4g). It has become.

In addition, the cam (4) K includes a connecting part (1a) between the side plate (1) and the plate material (2), a cutting edge (4e), and a collar (4f) to prevent the cam (4) from coming off downward. and a guide convex portion (4h) on the upper surface (1b) of the member (1).

(5) C. It is a stripper insert, and the stripper insert (5) has the same plate (1) cutting edge (5a) and a side plate (1).
), and a guide surface (5b) for conveyance is provided.

(Ll) In the stripper plate α1), the inclined surface (3a)+ of the cam (3)
(3b) YC, 1 page 1 of Cam (4) (4a),
(The 4b is the same as the one in the picture! In the river, the stripper plate (1υ) is slidably stored.

Also, the stripper plate aman has strips.
The plate insert (5) is stored in a press-fitted state.

The operating member (6) is provided with a vertical movement transmitting portion (6C) of the punch plate (9), a spring (8) receiving portion (6d), and inclined surfaces (6a) and (6b). Choke punch (
7)′/? - is provided with a side plate (1) a reprimanding claw (1a), a shark cutting edge (7b), and an inclined surface (7a), and a cam (6 ) are housed in a state in which the inclined surfaces (6a) and (6b) are in contact with each other.

αa is a die plate, and below the die plate there is a backing plate (not shown) and a die holder, and the die holder is fixed to a part of the bolster of the press machine. In addition, punch plate (9), stripper plate 0, die rate αa is punch plate (9)
It is slidably guided in position by a pin (not shown) fixed to the punch plate U and the space between the punch plate U and the plate (10 is the space between the bolt shaft part). Convex-shaped place ``, ``J: A bolt with a stopper for tightening and a spring are used to provide a fixed amount of sliding movement.

The die plate θ has a hole (12a) for the cam (3) receiver.
is provided, and the upper surface of the die plate α[F] is still 1l
This serves as a guide surface for the lower end surface (IC) of the ll plate (1).

(1G is fixed to the stripper plate αυ with a bolt, this plate Cl0K is the operating member (6)
Vertical motion transmission part (6C) and escape hole (1) of cam (3)
0a).

(10b) is provided.

Next, to explain the operation of the present invention, first, FIG. 7 is a state diagram of each member processed in the pre-process of the present invention,
The side plate (1) and the plate material (2) are pressed at the same time while being connected by the connecting part (1e), and fed into the process of the present invention by the feed l+i& of the press machine. The stripper plate αV and the member (1) and ff1i are inserted into the die plate (6) by the press and the lower leg of the ram surface.
It is a state diagram with material (2) in it.

In this state, the connecting portion (IC) is first cut by the cutting edge provided on the stripper plate U and the die plate 11121'g-1, and then by the bent cutting edge provided on the stripper plate H and the die plate (2). , the cutting and bending of member (2) is completed. Historically, if the press ram surface continues to descend from this state, the inclined surface (3,
2), (3b) and 1 side of cam (4) (4a)
, (4b) comes into contact and accumulates on the slope, and the cam (4)
Move inside the stripper play H◇ in a direction substantially perpendicular to the sliding direction of the press 1, and complete the sliding of the cam (4) in Fig. 4'F-
The cam (4) moves the side plate (1) fully forward until the

Still showing progress on cam (4), stripper inserts (5)
The cutting edge (5a) of the side plate (1) is passed through, and the side plate (1) and the connecting portion are completely cut, and the side plate (1), which has been completely cut, has a cam (4), a guide protrusion (4h), Stringer - Nesting (
5), guide surface (5b), and die plate top surface, total 4
Depending on the song, each side of the side plate (1) (la), (lb),
With (lc) being guided, the side plate (1) continues Dj 1 until the end of forward movement. The forward photon position is the position where the defeating claw (2a) of the member (2) enters the side plate (1) and the square hole (1d), as shown in FIG. FIG. 4 shows the state of the mold at this time. Cam (4
) has completed its forward movement, when the lower surface of the punch plate (9) comes into contact with the vertical movement transmission part (6C) K of the operating member (6), and if it continues to descend from this state, it will become as shown in Fig. 5. As shown in FIG.
The sloped surface where the pattern punch (7) and the sloped surface (7a) are in contact'
F-ta, the tightening punch (7) is inserted into the hole of the cam (4) (
4d), and the shark punch (7) moves forward in the direction of the shark claw (2a), so that the choking cutting edge (7b) opens the choking claw (2a) to both sides.

FIG. 11 shows a state in which the gripping claws (2a) have been opened to both sides, and the shark part has been completed, and is also the lowest point of the descent of the press.

Next, the press ram surface starts to rise, and the side plate (1) attached to the bending punch attached to the stripper plate (11) K,
After the plate material (2) is removed by a stripper fixed to the die plate (K), it is discharged from the mold, and the processing is completed.

The present invention has a conveying member that is configured like a steamer and conveys a member in response to a press operation, and a means for preventing the member from being damaged when operated by the operating member. Since each step can be carried out in a concentrated manner while the press ram is moving up and down, a plurality of members can be reliably integrated and work efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the final shape of the case, FIG. 2 is an expanded plan view of the case, and FIGS. Fig. 6 is an exploded perspective view of the same part, Figs. 7 to 9 are perspective views showing changes in the parts from the start of machining to completion of the case, Figs. 10 and 11 are before and after fitting. FIG. (3) Cam (4) Cam (5) Stripper insert (6) Operating member (7) V-shaped punch (9) Punch plate αO holder is a plate
U◇Die rate on stripper plate

Claims (1)

[Claims] A conveying member that responds to the press operation and conveys the numbered member in a direction substantially perpendicular to the pressing direction and attaches it to the shark member, and an operating member that moves downward in response to the press operation after the conveyance is completed. An automatic tightening device comprising: a tightening means operated by the operating member to tighten the tightening member attached to the numbered member.