KR20210043973A - Frame structure of hydraulic press - Google Patents

Abstract

The present invention relates to a frame structure of a hydraulic press. According to the present invention, the frame structure of the hydraulic press comprises: a first mainframe which has an opening unit in the center of a plate-shaped frame body; a second mainframe installed to be spaced apart from and face the first mainframe, and including an opening unit formed in the center of the plate-shaped frame body; and a main cylinder bed whose one side and other side are settled on the opening unit and which includes a main cylinder. The first mainframe and the second mainframe include: a bed settlement unit formed to load the main cylinder bed; and a cylinder support member formed to support the main cylinder. The main cylinder bed includes: a frame access unit formed in a plate-shaped bed body with a cylinder insertion hole into which the main cylinder is inserted, and formed to be put on the bed settlement unit; and a support member accommodation unit formed to accommodate the cylinder support unit. The present invention aims to provide a frame structure of the hydraulic press, which is able to improve mechanical rigidity, durability, and processing quality.

Description

Frame structure of hydraulic press {FRAME STRUCTURE OF HYDRAULIC PRESS}

The present invention relates to a frame structure of a hydraulic press, and more specifically, mechanical stiffness, durability and processing by stably distributing and supporting the load of major components including the main cylinder and the punching force during operation and reducing noise and vibration. It relates to a frame structure of a hydraulic press that can improve quality.

In general, a press machine is a machine that performs plastic deformation by applying force to a material to perform processing such as bending, shearing, and cross-sectional contraction.It is also referred to as a press, and is processed into various shapes by plastically deforming mainly by applying a compressive force to a metal plate.

Presses are classified into mechanical presses and hydraulic presses according to the structure that generates compression force, and mechanical presses perform processing by generating compressive force by means of gears and cranks, and hydraulic presses use hydraulic pressure to compress the power of an electric motor. It is commonly referred to as a hydraulic press to perform an operation.

On the other hand, press processing is performed by shearing molds installed in various types of presses.The shearing process by shearing molds is performed by shearing molds when the thickness of the metal plate becomes thick, only a part of it is sheared cleanly and the rest is roughly broken. There is a limitation in that secondary processing such as milling, grinding, etc. must be performed.

In recent years, as a way to improve this problem, a hydraulic press commonly referred to as a fine blanking press has been developed and is widely used.

For example, the fine blanking press has been proposed a technique as disclosed in Korean Patent Publication No. 10-0723623.

The fine blanking press is provided with a fine blanking die 110 accommodating the processed material 100 as shown in FIG. 1A, and a fine blanking press frame for compressing the processed material 100 accommodated in the fine blanking die 110 A fine blanking ejector 112 and a fine blanking main punch for forming the processed material 100 compressed to the fine blanking press frame 120 by forming 120 to achieve compression of the processed material 100 at a predetermined pressure Since (122) exerts a pressure corresponding to each other with a high pressure pressure, the shear of the processed material 100 is made.

In addition, the fine blanking press is a lower bolster ram for forming a product by raising and lowering it to the top by a screw stopper device 20 and a screw stopper device 20 provided at the lower part of the press frame 90 as shown in FIG. 1B. (70), the lower bolster ram 70 and the upper bolster 80 corresponding to each other is provided.

The screw stopper device 20 is composed of a lower main cylinder housing 30 fixed to the work table, a main cylinder rod 40, a screw mechanism stopper 50, and an electric stopper control unit 60.

On the other hand, Figure 1b is a view for explaining the main frame structure of the conventional fine blanking press, as shown therein, the press frame 90 is arranged in a pair on one side and the other side to support the load of the main components to be upright and rectangular. A main frame 91 having an opening formed at the center of the rear plate, a transverse frame 92 installed in a transverse direction perpendicular to the main frame 91, and a main cylinder rod on both sides of the main frame’s opening. A main cylinder bed plate 93 on which a cylinder housing 30 including 40 is mounted is provided.

The above-described conventional fine blanking press main frame structure is the main cylinder bed plate 93 alone to reduce the load of major components such as the cylinder housing 30 including the high-load main cylinder rod 40, the lower bolster ram 70, and the like. Since it is not only a supporting structure, but also a force such as a punching force to pressurize the processed material when the press is operated, there is a disadvantage in that the main cylinder bed plate 93 is deformed when used for a long time.

When the main cylinder bed plate 93 is deformed in this way, the mechanical stiffness is deteriorated, as well as the deformation of the main frames that are in contact with each other. There is a disadvantage of becoming poor and causing industrial accidents such as hearing loss.

In addition, when the main cylinder bed plate 93 is deformed, the installed cylinder housing 30 is tilted, so that not only durability is deteriorated, but also errors in the flatness of the blanking die are caused, resulting in mass production of defective products during shearing of the processed material. have.

Korean Patent Registration No. 10-0723623 "Fine blanking press screw stopper device" Korean Patent Registration No. 10-0952716 "Fine blanking press screw stopper device"

The present invention has been proposed in light of the above, and it is possible to improve mechanical stiffness, durability and processing quality by stably distributing and supporting the load of major components including the main cylinder and the punching force during operation and reducing noise and vibration. The purpose of this is to provide a frame structure for a hydraulic press.

In order to achieve the above object, the frame structure of a hydraulic press according to the present invention comprises: a first main frame having an opening formed in the center of the plate-shaped frame body in the frame structure of the hydraulic press; A second main frame spaced apart from the first main frame and installed to face the first main frame and having an opening formed in the center of the plate-shaped frame body; And a main cylinder bed in which one side and the other side are seated in the opening and a main cylinder is installed, wherein the first main frame and the second main frame include a bed seating portion formed so that the main cylinder bed is mounted, and the A frame connection portion having a cylinder support member formed to support the main cylinder, wherein the main cylinder bed is formed of a plate-shaped bed body in which the cylinder insertion hole into which the main cylinder is inserted is perforated, and is mounted on the bed seating portion. And, it characterized in that the cylinder support is provided with a support member receiving portion formed to be positioned and received.

The cylinder support member may include a support protrusion protruding from the center of the lower surfaces of the openings of the first and second main frames.

The bed seating portion may be composed of a pair of seating grooves recessed into both sides of the support protrusion.

The frame connection portion may be configured to include a pair of seating extensions formed to be seated in the seating groove, and a connecting portion connected and formed between the seating extensions.

The support member receiving portion may be configured as a receiving groove recessed into the bed body so that the support protrusion is inserted.

Preferably, the receiving groove is concave and formed in the direction of the frame connection part so as to communicate with the cylinder insertion hole, and the support protrusion protrudes to a height equal to the thickness of the main cylinder bed.

The first and second main frames are disposed to be spaced apart in the front and rear direction, and longitudinal reinforcing members installed in the longitudinal direction on both sides of the openings of the first and second main frames; A transverse reinforcing member installed in a transverse direction between the first and second main frames; And a pair of installation base members connected between the lower ends of both sides of the first and second main frames and seated on the installation surface.

The frame structure of the hydraulic press according to the present invention includes a bed reinforcing member installed to be connected between the bottom surfaces of both sides of the main cylinder bed and the first and second main frames; A plurality of lower reinforcing plates connected between the pair of installation base members and further comprising a lower reinforcing plate on which the lower end of the bed reinforcing member is installed, and being detachably installed on the inner surface of the bed reinforcing member to perform a function of maintaining the position of the main cylinder. It may include a cylinder guide plate of, and a cylinder fixing hole formed in the lower reinforcing plate so that the lower portion of the main cylinder is inserted and fixed to perform an anti-shake function of the main cylinder.

According to the frame structure of the hydraulic press according to the present invention, since the main cylinder is placed on the cylinder support portion of the main frame, the weight of the main components is not transmitted to the main cylinder bed, but directly to the first and second main frames. It can support more stably and prevent deformation such as sagging of the main cylinder bed that occurred in the conventional frame structure, thereby improving the durability of the hydraulic press and the processing quality of the molded product, as well as noise and vibration during punching. Because it can reduce the work environment can be improved, there is an effect of preventing industrial accidents in advance. In addition, since the cylinder support part is surrounded and supported by the seating extension part and the connecting part as it is inserted into the support member receiving part, it is not deformed and can stably support the load of various components and the impact force during punching.

And, according to the frame structure of the hydraulic press according to the present invention, as the first and second main frames formed with a relatively long width are arranged to face each other in the front and rear direction, the load is compared to the conventional method in which the main frames are arranged to face each other in the left and right directions. Since it can stably disperse and support and improve structural stability, durability can be improved, and noise and vibration can be reduced.

1A is a view for explaining the operation of a general hydraulic press,
1B is a front cross-sectional view for explaining the frame structure of a conventional hydraulic press,
Figure 2 is a perspective view showing the overall appearance for explaining the frame structure of the hydraulic press according to an embodiment of the present invention,
3A and 3B are views showing only a frame portion to explain the frame structure of a hydraulic press according to an embodiment of the present invention, and FIG. 3A is a perspective view and FIG. 3B is an exploded perspective view.
4A and 4B are views for explaining the main configuration of a frame structure of a hydraulic press according to an embodiment of the present invention, and FIG. 4A is a perspective view and FIG. 4B is an exploded perspective view.
5 is a perspective view showing a main cylinder bed applied to the frame structure of a hydraulic press according to an embodiment of the present invention;
6 is a perspective view showing a bed reinforcing member and a lower reinforcing plate applied to the frame structure of a hydraulic press according to an embodiment of the present invention;
7 is a perspective view showing an upper cylinder fixing frame applied to the frame structure of a hydraulic press according to an embodiment of the present invention;
8 is a view for explaining the operation of the frame structure of the hydraulic press according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings FIGS. 2 to 8, but the same components in FIGS. 2 to 8 will be described with the same reference numerals.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person of ordinary skill in the art from a general technique and an action and effect therefor will be briefly or omitted. In addition, since the present invention has features in the frame structure of the hydraulic press, the related parts are shown and described as the center, and the description of the remaining parts will be simplified or omitted.

Figure 2 is a perspective view showing the overall appearance for explaining the frame structure of a hydraulic press according to an embodiment of the present invention, Figures 3a and 3b are a frame for explaining the frame structure of the hydraulic press according to an embodiment of the present invention As a partial view, Fig. 3A is a perspective view and Fig. 3B is an exploded perspective view. 4A and 4B are views for explaining the main configuration of a frame structure of a hydraulic press according to an embodiment of the present invention, and FIG. 4A is a perspective view and FIG. 4B is an exploded perspective view.

2 to 4B, the frame structure of the hydraulic press according to an embodiment of the present invention includes a main cylinder part (a, Main cyrinder parts) disposed at the bottom, and a counter cylinder part (b) disposed on the main cylinder part. ,Counter cylinder parts), V-ring cylinder parts (c, V-ring cylinder parts) arranged on the upper part of the counter cylinder are installed and supported, and the first main frame (1), the second main frame (1') , A main cylinder bed (2), a longitudinal reinforcing member (3), a transverse reinforcing member (4), and an installation base member (5) are provided.

In particular, the frame structure of the hydraulic press according to the present invention includes the first and second main frames (1, 1') and the main cylinder bed (2) as a main cylinder part (a), a counter cylinder part (b), and a V-ring. It is characterized in that it is configured to stably distribute and support the load of the main components constituting the cylinder part (c) and the punching force during operation and to reduce noise and vibration.

The first main frame 1 is a component that is installed upright in the front part of the hydraulic press and has an opening 12 formed in the center of the plate-shaped frame body 11 as shown in FIGS. 3A and 3B. It is composed of a thick plate having a substantially rectangular plate shape to stably support the load and punching force of the component.

The second main frame 1 ′ is a component that is spaced apart from and installed at the rear facing the first main frame 1, and similar to the first main frame described above, the opening 12 in the center of the plate-shaped frame body 11 ) Is formed.

In addition, the first and second main frames (1, 1') are formed to support the bed seating portion (13) formed to lift the main cylinder bed (2), and the cylinder formed to support the cylinder housing (a1) portion of the main cylinder. The support member 14 is configured.

Here, the cylinder support member 14 is composed of a support protrusion 141 protruding from the center of the lower surface of the opening 12 of the first and second main frames 1 and 1 ′.

It is preferable that the support protrusion 141 is formed in a shape of a substantially rectangular protrusion toward the upper side at the center of the lower surface of the opening 12 and protrudes at the same height as the thickness of the main cylinder bed 2.

The bed seating portion 13 is composed of a pair of seating grooves 131 concave on both sides of the support protrusion 141, and the width and depth of the seating grooves 131 are the width of the frame connection portion 23 to be described later. It is desirable to form in accordance with the and thickness.

And, as described above, the first and second main frames (1, 1') are spaced apart from each other in the front and rear direction when viewed from the front of the hydraulic press and are arranged to face each other, and this arrangement structure allows the main frame to face in the left and right directions. Compared to the conventional arrangement, the load can be stably supported and distributed, and noise and vibration can be reduced during punching by improving structural stability.

5 is a perspective view showing a main cylinder bed applied to the frame structure of a hydraulic press according to an embodiment of the present invention.

2 to 5, the main cylinder bed 2 is installed by raising the cylinder housing a1 of the main cylinder, and at one side of the opening 12 of the first and second main frames 1 and 1 ′. And a thick plate having a substantially rectangular plate shape so as to stably support a load and punching force as a component on which the other side is seated.

In addition, the main cylinder bed 2 is perforated in the center of the plate-shaped bed body 21 and the cylinder insertion hole 22 into which the main cylinder is inserted, and the bed seating portion of the first and second main frames 1 and 1 ′. A frame connecting portion 23 formed in the front and rear direction of the bed body 21 so as to be mounted on 13, and a supporting member receiving portion 24 formed to accommodate the cylinder supporting portion 14 are provided.

The frame connection part 23 includes a pair of seating extensions 231 protruding from the bed body 21 so as to be seated in the seating grooves 131 of the first and second main frames 1 and 1', and the seating extension It is composed of a connection portion 232 that is connected and formed between the portions 231.

The support member receiving part 24 is composed of a receiving groove recessed into the bed body 21 so that the support protrusions 141 of the first and second main frames 1 and 1 ′ are inserted, and the receiving groove is inserted into a cylinder. Doedoe concave in the direction of the frame connection portion 23 in communication with the hole 22, it is formed in a square groove similar to the cross-sectional structure of the cylinder support (14).

On the other hand, the longitudinal reinforcing member 3 is a reinforcing post member for firmly maintaining the upright state of the first and second main frames, and both sides of the opening of the first main frame 1 and the second main frame 1 ') is installed in the longitudinal direction on both sides of the opening.

Such a longitudinal reinforcing member 3 is a member formed in a substantially rectangular column shape is disposed in the longitudinal direction on the first and second main frames 1 and 1 ′ and is joined by welding, and a plurality of reinforcing ribs 32 is constant. They are installed at intervals.

The transverse reinforcing member 4 is a member installed to firmly bond the first and second main frames 1 and 1 ′ to each other, and a constant vertical gap between the first and second main frames 1 and 1 ′. It is installed in the transverse direction to have a.

The installation base member 5 is a member that performs the function of a base plate seated on an installation surface, and is configured as a pair to be connected between the lower ends of both sides of the first and second main frames 1 and 1 ′.

The installation base member 5 is formed of a plate-shaped member that is longer than the distance between the first and second main frames, and an anchor hole 53 to which an anchor bolt (not shown) installed on the bottom surface is bound when the hydraulic press is installed. An installation bracket 54 is provided that is perforated before and after this and has a hole through which a traction rope can be inserted during transport and installation.

6 is a perspective view showing a bed reinforcing member and a lower reinforcing plate applied to the frame structure of a hydraulic press according to an embodiment of the present invention.

6, the frame structure of the hydraulic press according to an embodiment of the present invention is a bed reinforcing member ( 61) and the lower reinforcing plate 62 is characterized in that it is further configured.

The bed reinforcing member 61 is a member installed to be connected between the bottom surface of the main cylinder bed 2 and the first and second main frames 1 and 1 ′, and an observation hole 612 for internal observation is formed. The plate is installed so as to be located on one side and the other side of the main cylinder bed 2 in contact with the cylinder insertion hole 22.

Further, the bed reinforcing member 61 is provided with a plurality of cylinder guide plates 63 that perform a function of maintaining the position of the cylinder housing a1 of the main cylinder. This cylinder control plate 63 is detachably installed on the inner surface of the bed reinforcing member 61, and is formed of a plate material having a thickness corresponding to the gap between the outer surface of the cylinder housing (a1) of the main cylinder and the outer surface of the bed reinforcing member. Has been.

In addition, the cylinder control plate 63 is composed of a horizontal cylinder control plate 631 installed in the transverse direction to the bed reinforcing member 61, and a vertical cylinder control plate 632 installed in the bed reinforcing member 61 in the longitudinal direction. .

The lower reinforcing plate 62 is a plate-like member connected between the installation base members 5 and the lower end of the bed reinforcing member 61 is coupled.

In addition, the lower reinforcing plate 62 is characterized in that it is configured to perform a function of supporting the bed reinforcing member 61 and preventing shaking of the main cylinder. To this end, the lower reinforcing plate 62 has a cylinder fixing hole 622 perforated so that the lower end of the cylinder housing of the main cylinder is inserted and fixed in the central portion.

7 is a perspective view showing an upper cylinder fixing frame applied to the frame structure of a hydraulic press according to an embodiment of the present invention.

Referring to Figure 7, the frame structure of the hydraulic press according to an embodiment of the present invention is provided with an upper cylinder fixing frame 7 in which V-ring cylinder parts (c, V-ring cylinder parts) are embedded.

The upper cylinder fixing frame (7) is installed between the first and second main frames (1, 1'), and the V-ring cylinder (c1) is mounted on both sides of the upper cylinder bed (71) and the upper cylinder bed (71). The upper cylinder fixing plate 72 installed to be upright on the upper cylinder fixing plate 72, a plurality of upper cylinder guide plates 73 installed inside the upper cylinder fixing plate 72 and in close contact with the V-ring cylinder, and the upper cylinder fixing plate 72 The combined upper cylinder cover plate 74 is provided.

Here, the upper cylinder bed 71 includes an upper cylinder insertion hole 712 formed to accommodate the V-ring cylinder c1 in the center of the body formed of a thick plate having an approximately rectangular plate shape, and the openings of the first and second main frames. (12) A coupling protrusion 713 that protrudes in the front and rear direction is configured to be coupled to the upper rim surface.

Hereinafter, the operation of the frame structure of the hydraulic press according to an embodiment of the present invention will be briefly described.

The accompanying drawings, FIG. 8 are diagrams for explaining the action of the hydraulic press on the frame structure according to an embodiment of the present invention, and are exploded perspective views showing an enlarged main part.

The first main frame (1), the second main frame (1'), the main cylinder bed (2), the longitudinal reinforcing member (3), the transverse reinforcing member (4), which are the main components constituting the frame of the hydraulic press as described above. ), the installation base member 5, the bed reinforcing member 61, the lower reinforcing plate 62, and the upper cylinder fixing frame 7, etc. Assemble.

For example, more specifically, the first main frame 1 and the second main frame 1 ′ are assembled to the installation base member 5 by welding, etc., and the first and second main frames 1 and 1 The bed reinforcing member 61 and the lower reinforcing plate 62 are assembled on the lower part of').

Thereafter, one side and the other side of the main cylinder bed 2 are seated in the openings 12 of the first and second main frames 1 and 1 ′, and then welding is performed so that they are bound to each other. At this time, the frame connection part 23 is fitted to the bed seating part 13 of the first and second main frames 1 and 1 ′, and the cylinder support part 14 is positioned in the support member receiving part 24. do.

As described above, when the basic assembly of the frame is completed, components constituting the main cylinder parts are assembled. More specifically, a main cylinder with a main piston (not shown) is inserted into the cylinder housing a1 through the cylinder insertion hole 22 of the main cylinder bed 2 and installed, and the main cylinder part ( On the upper part of a), assemble counter cylinder parts b, including a slider (not shown), a counter cylinder (not shown), and a lower bolster (b1).

At this time, the main cylinder part (a) is fitted with the upper circumferential surface of the cylinder housing (a1) in the cylinder insertion hole 22 as shown in Figs. It is supported, and the lower circumferential portion of the cylinder housing (a1) is stably adhered to the cylinder control plate 63 shown in FIG. It is fixed. In particular, as described above, when the cylinder housing a1 is mounted on the cylinder support 14, the weight of the main cylinder a is not transmitted to the main cylinder bed 2, but the first and second mains installed upright. Since it is directly transmitted to the frames 1 and 1 ′, the load can be supported more stably, and deformation such as sagging of the main cylinder bed 2 occurring in the conventional frame structure can be prevented in advance. At this time, the cylinder support part 14 is surrounded and supported by the seating extension part 231 and the connecting part 232 as it is inserted into the support member receiving part 24, so it is not deformed and stably supports the load of various components and the impact force during punching. I can support it.

As described above, when assembling the main cylinder parts (a, main cyrinder parts) and assembling the counter cylinder parts (b, counter cylinder parts) disposed above the main cylinder part is completed, the first and second main frames (1) ,1'), the upper cylinder bed 71, the upper cylinder fixing plate 72, the upper cylinder guide plate 73, and the upper cylinder cover plate 74 are assembled, and the V-ring cylinder (c1), the upper part Assemble V-ring cylinder parts such as bolster (c2, top bolster).

The configuration and operation of the frame structure of the hydraulic press according to the embodiment of the present invention have been described above, but this is exemplary, and those of ordinary skill in the art have been described above within the scope not departing from the technical spirit of the present invention. It will be appreciated that some of the embodiments may be substituted and modified.

Therefore, it should be understood that the scope of protection of the present invention extends to the invention and its equivalents described in the claims.

1: 1st mainframe 1': 2nd mainframe
11: frame body 12: opening
13: bed seating part 14: cylinder support member
2: Main cylinder bed 21: Bed body
22: cylinder insertion hole 23: frame connection
24: supporting member receiving portion 3: longitudinal reinforcing member
4: Transverse reinforcing member 5: Mounting base member
61: bed reinforcing member 62: lower reinforcing plate
63: Cylinder guide plate 7: Upper cylinder fixing frame
71: upper cylinder bed 72: upper cylinder fixing plate
73: upper cylinder guide plate 74: upper cylinder cover plate

Claims (5)

In the frame structure of the hydraulic press,
A first main frame having an opening formed in the center of the plate-shaped frame body;
A second main frame spaced apart from the first main frame and installed to face the first main frame and having an opening formed in the center of the plate-shaped frame body; And
Including; a main cylinder bed in which one side and the other side are seated and the main cylinder is installed in the opening,
The first main frame and the second main frame have a bed seating portion formed to lift the main cylinder bed, and a cylinder support member formed to support the main cylinder,
The main cylinder bed is formed of a plate-shaped bed body in which the cylinder insertion hole into which the main cylinder is inserted is perforated, and a frame connecting portion formed to be mounted on the bed seating portion, and a supporting member formed to be positioned and received by the cylinder support portion Frame structure of a hydraulic press, characterized in that the receiving portion is provided.
The method of claim 1,
The cylinder support member is composed of a support protrusion protruding from the center of the lower surface of the opening of the first and second main frame,
The bed seating portion is composed of a pair of seating grooves concave on both sides of the support protrusion,
The frame connection portion includes a pair of seating extensions formed to be seated in the seating groove, and a connecting portion connected and formed between the seating extensions,
The frame structure of a hydraulic press, characterized in that the support member receiving portion is composed of a receiving groove recessed into the bed body so that the support protrusion is inserted.
The method of claim 2,
The receiving groove is concave and formed in the direction of the frame connection part so as to communicate with the cylinder insertion hole,
The frame structure of a hydraulic press, wherein the support protrusion protrudes to the same height as the thickness of the main cylinder bed.
The method according to any one of claims 1 to 3,
The first and second main frames are disposed to be spaced apart in the front and rear direction,
Longitudinal reinforcing members installed in the longitudinal direction on both sides of the openings of the first and second main frames; A transverse reinforcing member installed in a transverse direction between the first and second main frames; And a pair of installation base members connected between the lower ends of both sides of the first and second main frames to be seated on the installation surface.
The method of claim 4,
A bed reinforcing member installed to be connected between the bottom surfaces of both sides of the main cylinder bed and the first and second main frames; Further comprising a lower reinforcing plate connected between the pair of installation base members and on which the lower end of the bed reinforcing member is installed,
A plurality of cylinder guide plates that are detachably installed on the inner surface of the bed reinforcing member to perform the function of maintaining the position of the main cylinder, and the lower reinforcing plate so that the lower part of the main cylinder is inserted and fixed, the main cylinder is shaken. Frame structure of a hydraulic press, characterized in that it comprises a cylinder fixing hole for performing a preventive action.

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