JPH034475Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a guide device that is used for a male die or a female die in a press and guides the movement of the male die or female die.

[Prior art]

In a conventional guide device of this kind, for example, as shown in FIG.
A locking plate 47 is provided to support the sliding tube 31, and the locking rod 4 is fixed to the locking plate 47.
1 was inserted into the insertion hole 35 of the retractable rod 21 so as to be able to move forward and backward. By fixing the retaining bush 1 to the open end of the insertion hole 35 using the circlip 3, the retaining rod 41 is prevented from coming off.

[Problems with conventional technology]

However, since the bushing fitting hole 4 had a small diameter, it was difficult to form the fitting groove 5 into which the circlip 3 was fitted.
The problem was that the installation work was time-consuming.

[Means for solving the above problems]

This invention was made in order to solve the above-mentioned inconvenience, and its configuration includes: a guide rod member installed on one of the male mold or the female mold in the press and on which a retractable rod is erected; and the male mold or the female mold. a guide hole member installed on the other side of the mold and having a fitting hole into which the retractable rod is loosely fitted; a guide hole member that is loosely fitted to the tip of the retractable rod and biased toward the tip of the retractable rod by a compression spring; It comprises a sliding tube and a locking plate that locks the sliding tube, and an insertion hole is bored in the axial direction on the tip surface of the retractable rod, and the tip of the locking rod is inserted into the insertion hole. is inserted so as to be movable back and forth, and the locking plate is fixed to the rear end of the locking rod, and furthermore, a retainer is provided at the open end of the insertion hole of the locking rod to prevent the locking rod from slipping out. In the press guide device in which a bushing is installed, the retaining bush is screwed into the insertion hole.

[Effect of invention]

Since the press guide device according to this invention is configured as described above, that is, the retaining bushing is screwed into the insertion hole of the retractable rod, so it is only necessary to cut a female thread into the insertion hole of the retractable rod. This makes it possible to install a retaining bushing, and the work of installing the retaining bushing is extremely simple and quick compared to the conventional method that uses a circlip.

[Explanation of Examples]

Hereinafter, an embodiment of this invention will be described based on FIGS. 1 to 3.

In FIG. 3, reference numeral 11 is a male mold in a press molding machine, which is installed on a lower base plate 13. or,
15 is of the same female type and is installed on the upper base plate 17. This female mold 15 is attached to the male mold 1 together with the upper base 17.
1 and press-forms a workpiece (not shown). Reference numeral 19 denotes a guide rod member, which is installed on the lower base plate 13. This guide rod member 19 has an upwardly protruding retractable rod 21. On the other hand, 2
Reference numeral 3 denotes a guide hole member, which is installed on the upper base plate 17. This guide hole member 23 is connected to the retractable rod 21.
It has a fitting hole 25 into which the guide rod member 19 is inserted. Note that the reciprocating rod 21 is inserted into this insertion hole 25.
While inserted into the guide hole member 23, the female die 15 is moved up and down.

Next, the guide rod member 19 will be explained in detail based on FIGS. 1 and 2.

Reference numeral 31 denotes a sliding tube, which is fitted into the tip of the advancing/retracting rod 21 so as to be able to move forward and backward. This sliding tube 31 is a reciprocating rod 2 with respect to the insertion hole 25 (of the guide hole member 23).
1. Smooth sliding. Reference numeral 33 denotes a compression spring, which is loosely fitted into the base of the retractable rod 21. This compression spring 33 urges the sliding tube 31 in the direction of the tip of the retractable rod 21.

Further, reference numeral 35 denotes an insertion hole, which is opened at the tip end face of the reciprocating rod 21 and is bored at its axis. This insertion hole 35 has a female threaded portion 53a on its inner wall surface and an enlarged diameter portion 35b at its open end (see FIG. 2).

Reference numeral 37 denotes a retaining bush, which connects the female threaded portion 35a of the insertion hole 35 via the male threaded portion 37a on the outer wall surface.
(See Figure 2). The retaining bushing 37 has a bolt portion 39, and when the retaining bushing 37 is installed, the bolt portion 39 is loosely fitted into the enlarged diameter portion 35b. 41 is a locking rod, which is inserted into the shaft hole 43 of the locking bush 37.
It is inserted so that it can move forward and backward. Reference numeral 45 denotes a circlip installed at the tip of the locking rod 41, and prevents the locking rod 41 from falling off from the retaining bush 37. 47 is a locking plate;
It is fixed to the rear end of the locking rod 41. This locking plate 47 locks the upper edge of the sliding tube 31.
Therefore, even if the sliding cylinder 31 is resiliently repelled by the compression spring 33 in the direction of the distal end of the retractable rod 21, it will not fall off.

[Effect of idea]

Since the press guide device according to this invention is constructed as described above, that is, the retaining bushing is screwed into the insertion hole of the retractable rod, so it is only necessary to cut a female thread into the insertion hole of the retractable rod. This makes it possible to install a retaining bushing, and the work of installing the retaining bushing is extremely simple and quick compared to the conventional method that uses a circlip.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the press guide device according to this invention, and Figure 1 is an enlarged sectional view of the main part of the part shown in Figure 3 (the guide rod member is inserted into the guide hole member). Fig. 2 is an enlarged cross-sectional view of the part shown in Fig. 1, Fig. 3 is a front view of this embodiment, and Fig. 4 is a diagram of a conventional example corresponding to Fig. 1. . 11...male type, 15...female type, 19...guide rod member, 21...advancing/retracting rod, 23...guide hole member, 25...fitting hole, 31...sliding tube, 33...
Compression spring, 35...insertion hole, 37...retention bushing, 41...locking rod, 47...locking plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A guide rod member installed in one of the male mold or the female mold of a press and having an advancing and retracting rod erected thereon; a guide hole member having a fitting hole for fitting; a sliding tube loosely fitted to the tip of the retractable rod and biased toward the tip of the retractable rod by a compression spring; and locking the sliding tube. an insertion hole is bored in the distal end surface of the reciprocating rod in the axial direction, and the distal end of the locking rod is inserted into the insertion hole in a movable manner; In the press guide device, the locking plate is fixed to the rear end of the rod, and a retaining bushing for preventing the locking rod from coming off is installed at the open end of the insertion hole of the retractable rod, A press guide device characterized in that the retaining bushing is screwed into the insertion hole.