JPH0530878Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a workbench with a safety cover for a C-shaped frame press in which the press working part is open from the side to the front.

<Conventional technology> Conventionally, when changing the mold of a press machine, etc.
To make the work more convenient, a small, movable workbench was placed near the press machine, and the tools, bolts, etc. necessary for the work were placed on it.

Moreover, in order to protect workers from the dangerous area of the press working part, various safety covers are used in press machines to shield the front surface of the press working part from the outside during press working. For example, there is a double-door structure in which columns are erected on both sides of the front opening of the press processing section and a pair of left and right safety covers are hinged to the columns, and guide rails that extend left and right at the top and bottom of the front opening are installed. A conventional technology is known to have a double sliding door structure in which a pair of left and right safety covers are slidably provided on the guide rail.

<Problems to be solved by the invention> However, with such conventional press machines, the work table is moved every time the mold is changed, etc.
When this happened frequently, moving the workbench was a pain.

In addition, when the press machine is a C-shaped frame press that is open from the side to the front of the press processing section, when the safety cover is opened to perform work such as changing molds, it is necessary to The ends of the cover remain on both left and right ends of the front opening.

Therefore, there was a problem in that the good accessibility to the mold attachment part, which is a characteristic of the C-shaped frame press, was impaired, making it difficult to perform operations such as mold replacement.

This idea was developed in consideration of the above, and is a workbench with a safety cover for a C-shaped frame press that is equipped with a workbench and has a safety cover that can be stored below the workbench surface when the front of the press processing section is opened. It is intended for the purpose of providing.

<Means for solving the problem> This invention was made to achieve the above-mentioned purpose, and it consists of a workbench installed in front of the press processing section of a C-shaped frame press, a moving member, and a movement of the moving member. a support member that guides and supports the workbench, and a linear motion member that is disposed below the workbench and can be extended upward by the movement of the moving member;
a safety cover that is supported by the translational member and is provided so as to be movable in the vertical direction between a first position where the front surface of the press working section is isolated from the outside and a second position where the front surface of the press working section is opened; This is a C-frame press workbench with a safety cover.

<Function> This invention is constructed as described above, and when the safety cover is in the first position, the safety cover is supported by the linearly moving member extending upward, and the front surface of the press-formed part is exposed from the outside. Cut off. When in the second position, the entire safety cover and the linear movement member supporting it are stored below the workbench surface by being supported by the retracted linear movement member, thereby opening the front surface of the press processing section.

<Example> An example of this invention will be described below with reference to Figures 1 to 4.
This will be explained based on the diagram.

In the figure, 1 is a C-shaped frame press;
A workbench 7 provided in front of the press processing section 5 of the frame press 1, a linear motion member 10 disposed below the workbench 7 and capable of extending upward, and a linear motion member 1
The main body includes a safety cover 20 that is movable in the vertical direction between a first position where the front surface of the press working part 5 is isolated from the outside by being supported by the safety cover 20 and a second position where the front face of the press working part 5 is opened. A workbench with a safety cover for a C-shaped frame press is constructed.

A bed 2 of a C-shaped frame press 1 is provided with a bolster 3, a slide 4 is provided above the bolster 3, and a press working part 5 is formed between the bolster 3 and the slide 4. The frame of the C-shaped frame press 1 is open from both sides of the press processing section 5 to the front.

In the embodiment, the workbench 7 has an opening 8 through which the safety cover 20 can pass vertically, and is fixed to the front surface of the bolster 3 so that the surface of the workbench 7 is flush with the upper surface of the bolster 3.

In the embodiment, the linear motion member 10 is composed of a so-called slide rail, and the moving member 11 has a substantially U-shaped cross section.
, a support member 13 having a substantially C-shaped cross section that guides and supports the movement of the movable member 11 , and a large number of members interposed between the movable member 11 and the support member 13 to smooth the movement of the movable member 11 . ball 15 and a locking mechanism 1 that maintains the extended state due to the movement of the moving member 11.
6.

The locking mechanism 16 is formed by a locking spring 12 provided on the moving member 11 and a locking portion 14 provided on the support member 13. The locking spring 12 is made of a leaf spring material, has a spring force in the direction of approaching the support member 13, and is provided with an engagement groove (not shown) that can engage with the locking portion 14, so that the movable member 11 It is arranged in a predetermined position. Further, the locking portion 14 is formed to protrude from a predetermined position of the support member 13 and is provided so as to be able to engage with the locking spring 12 .

Then, the moving member 11 moves, and the linear moving member 10
When the locking spring 1 extends and reaches a predetermined length, the locking spring 1
2 is formed so that it automatically engages with the locking portion 14 by its spring force and locks and maintains its extended state.

This linear motion member 10 is fixed to the front surface of the bud 2 via mounting plates 17 so as to extend in the vertical direction below both ends of the opening 8 of the workbench 7, and the upper end of the retracted translation member 10 is workbench 7
The movable member 11 is located at a position slightly lower than the upper surface, and is disposed so as to extend upwardly through the opening 8 .

Further, a locking mechanism 16 is provided at a predetermined position on the workbench 7.
A lock release mechanism 25 for releasing the lock is provided.

The lock release mechanism 25 includes an L-shaped release lever 26.
The release lever 26 is pivotally attached to a lever mount 28 by a shaft 27, and further urged in one direction by a return spring 29.

When the release lever 26 is rotated, the distal end portion 26a presses the locking spring 12 against the spring force, thereby releasing the locking of the locking spring 12 from the locking portion 14. ing.

The safety cover 20 is made of a plate material such as a transparent synthetic resin, and is provided with a handle 21 at the center of its upper part for pulling up. In addition, safety cover 20
The left and right end portions of are fixed to the moving member 11 of the translational member 10 by a retaining plate 23 and a mounting screw 24, respectively.

Next, the operation of the workbench with a safety cover of the C-shaped frame press constructed as described above will be explained.

When performing work such as mold exchange on the C-shaped frame press 1, the safety cover 20 is lowered and moved to the second position where the front surface of the press processing section 5 is opened.

As a result, the upper edge of the safety cover 20 is located slightly below the surface of the workbench 7, and the safety cover 20
0 and the linear motion member 10 that supports it are stored below the surface of the workbench 7, and the surface of the workbench is continuous in front of the upper surface of the bolster 3, and there are no obstructions from both sides of the press working part 5 to the front. An open space is created.

When performing press working, the handle 21 is pulled up to raise the safety cover 20 and move it to the first position where the front surface of the press working part 5 is isolated from the outside. At this time, the safety cover 20 is guided and supported by the moving member 11 of the translational member 10 and smoothly moves upward, and is held at the first position by the locking mechanism 16.

Furthermore, in order to move the safety cover 20 from the first position to the second position, the lock release mechanism 25 is operated to release the lock of the lock mechanism 16, and the safety cover 20 is lowered.

It should be noted that this invention is not limited to the configuration of the above-described embodiments, and its embodiments can be modified within the scope of the technical idea of this invention.

For example, the linearly moving member may be constructed of a pneumatic cylinder or the like and may be linearly moved by a pressure source, or may be a linearly moving member formed of a pinion and rack driven by a motor.

Further, the mounting position of the workbench is not limited to the bolster.

Further, the workbench may be configured such that when not in use, the table surface is pivoted by a hinge or the like to a position where the table surface is in a hanging state, and when in use, it is pivoted to a position where it is in a horizontal state.

Further, a limit switch may be provided to detect movement of the safety cover from the first position, and the operation of the C-frame press may be stopped by the operation of this limit switch.

<Effects of the Invention> As explained above, the work bench with safety cover for a C-frame press of this invention comprises a work bench provided in front of the processing section of the C-frame press, a linear motion member consisting of a movable member and a support member which guides and supports the movement of the movable member, which is disposed below the work bench and can be extended upward by the movement of the movable member, and a safety cover supported by the linear motion member and capable of moving up and down between a first position which blocks the front of the press processing section from the outside and a second position which opens the front of the press processing section, so that when the safety cover is in the second position, the entire safety cover and the linear motion member which supports it are stored below the surface of the work bench. Therefore, an open space free of obstacles is formed from both sides to the front of the press processing section,
Good accessibility to the die mounting portion is maintained, making it easy to perform operations such as die replacement.

In addition, since the movable member of the linear motion member supporting the safety cover is formed integrally with the safety cover, and the movable member is stored below the workbench surface in the second position, the appearance of the C-shaped frame press is improved. without damaging it.

Furthermore, since the workbench is located close to the bolster, there is no need to move the workbench each time when changing molds, etc., and work can be done quickly. It can also be used for creating records, etc., and has effects such as high convenience.

[Brief explanation of drawings]

Fig. 1 is a side view of a workbench with a safety cover for a C-shaped frame press according to an embodiment of this invention, Fig. 2 is a front view, Fig. 3 is a plan view, and Fig. 4 is a workbench with a safety cover.
It is an enlarged cross-sectional view of part A in the figure. 1... C-shaped frame press, 7... Workbench, 1
0...Linear motion member, 20...Safety cover.

Claims (1)

[Claims for Utility Model Registration] Consists of a workbench provided in front of the press processing section of a C-shaped frame press, a moving member and a support member that guides and supports the movement of the moving member, and is located below the workbench. a linear motion member that is supported by the translation member and can be extended upwardly by the movement of the movable member; a first position that is supported by the translation member and blocks off the front surface of the press section from the outside; and a first position that opens the front surface of the press section. A workbench with a safety cover for a C-shaped frame press, characterized by comprising: a safety cover provided to be movable in the vertical direction between two positions;