KR20120025868A

KR20120025868A - Back gauge apparatus

Info

Publication number: KR20120025868A
Application number: KR1020100088039A
Authority: KR
Inventors: 선보선
Original assignee: 선보선
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2012-03-16

Abstract

The present invention relates to a back gauge device of a sheet metal working machine, the lower frame; An upper frame capable of being driven forward or downward with respect to the lower frame; And an elevating driving unit provided in an area between the lower frame and the upper frame to elevate and drive the upper frame with respect to the lower frame, wherein the elevating drive unit is coupled to a lower end of the upper frame. ; A fixed block coupled to one side of the lower frame; A ball screw screwed to the fixed block to penetrate the fixed block along a direction in which the upper frame is driven up and down (1 + Z, -Z), and an upper end thereof contacts the lifting block; And a handle screwed to the ball screw to rotate the ball screw in the forward and reverse directions. As a result, as a simple structure, the elevating driving operation of the upper frame can be conveniently performed with respect to the lower frame, and in particular, a separate structure is not provided in the upper space of the upper frame as in the prior art, thereby avoiding interference with surrounding structures. It is possible to actively use the upper space of the upper frame if necessary.

Description

Back gauge apparatus for sheet metal working machines

The present invention relates to a back gauge device of a sheet metal working machine, and more particularly, as a simple structure, it is possible to conveniently perform the elevating drive operation of the upper frame to the lower frame, in particular in the upper space of the upper frame It is related to the back gauge device of the sheet metal processing machine that can avoid the phenomenon of interference with surrounding structures, such as no other structure is provided, and can actively use the upper space of the upper frame when necessary.

Generally, in sheet metal processing machines such as bending machines or shearing machines for bending or shearing a workpiece such as a sheet material, the tip of the workpiece is moved while moving back and forth according to the processing position in order to provide a constant bending or shearing position of the workpiece. A supporting back gauge device is used.

Such a back gauge device, as disclosed in Korean Patent Laid-Open Publication No. 10-1985-7732 and the like, has a substantially straight upper frame driven forward and backward or ascending or descending with respect to a substantially 'c' shaped lower frame. It is supported to adjust the machining position.

By the way, in the prior art disclosed in the above-mentioned documents or the like, since the elevating driving of the upper frame with respect to the lower frame has a structure performed by a handle operation provided on the upper part of the upper frame, the elevating driving operation of the upper frame is inconvenient. In addition, there is a problem that the handle is limited to the upper space utilization of the upper frame, as having a structure that protrudes to the upper portion of the upper frame.

An object of the present invention, as a simple structure can easily perform the lifting operation of the upper frame with respect to the lower frame, in particular, there is no special structure is provided in the upper space of the upper frame as conventional, such as the phenomenon of interference with the surrounding structure It is to provide a back gauge device of a sheet metal working machine that can avoid the need and actively utilize the upper space of the upper frame when necessary.

The object, the lower frame; An upper frame capable of being driven forward or downward with respect to the lower frame; And an elevating driving unit provided in an area between the lower frame and the upper frame to elevate and drive the upper frame with respect to the lower frame, wherein the elevating drive unit is coupled to a lower end of the upper frame. ; A fixed block coupled to one side of the lower frame; A ball screw screwed to the fixed block to penetrate the fixed block along a direction in which the upper frame is driven up and down (1 + Z, -Z), and an upper end thereof contacts the lifting block; And a handle which is screwed to the ball screw to rotate the ball screw in the forward and reverse directions.

Here, the handle may be formed with a plurality of tool insertion holes at equal intervals in the circumferential direction.

The elevating drive unit may further include a guide rod coupled to the fixed block at a position adjacent to the ball screw to guide the elevating drive of the upper frame according to the forward and reverse rotation of the ball screw.

The elevating driving unit is operated manually, and may be provided as a pair to be symmetrical in the area between the lower frame and the upper frame.

The object, the lower frame; An upper frame capable of being driven forward or downward with respect to the lower frame; And an elevating driving unit provided in an area between the lower frame and the upper frame to elevate and drive the upper frame with respect to the lower frame, wherein the elevating driving unit is coupled to a lower end of the upper frame and spaced apart from each other. First and second lifting blocks disposed; First and second fixing blocks coupled to one side of the lower frame and spaced apart from each other; A drive motor provided on the lower frame side and capable of rotation in a forward and reverse direction; First and second screwed to the first and second fixing blocks, respectively, along the direction (1 + Z, -Z) in which the upper frame is driven up and down, and the first and second upper end is in contact with the first and second lifting blocks, respectively. Ball screw; And a back gauge device of the sheet metal working machine including a motion transfer part for transmitting the rotational motion from the drive motor to the rotational motion of the first and second ball screws.

Here, the exercise transmission unit, the first and second ball screw and the corresponding ones are respectively coupled to the first and second pinion gear to rotate together with the first and second ball screw; A rotating shaft having first and second rack gears which are tooth-engaged with the first and second pinion gears, respectively; A drive sprocket connected to the motor shaft of the drive motor; A driven sprocket connected to one side of the rotating shaft; And a chain connecting the driving and driven sprockets.

The elevating drive unit includes: first and second support blocks rotatably supporting both ends of the rotating shaft; And coupled to the first and second fixing blocks, respectively, at positions adjacent to the first and second ball screws to guide the lowering driving of the upper frame according to the forward and reverse rotation of the first and second ball screws. It may further include a first and second guide rods.

The elevating driving unit may be provided in a pair so that the remaining components except for the driving motor and the rotation shaft are left and right symmetrically in an area between the lower frame and the upper frame.

According to the present invention, as a simple structure, the lifting and lowering driving operation of the upper frame with respect to the lower frame can be conveniently performed, and in particular, since a different structure is not provided in the upper space of the upper frame as in the prior art, interference with surrounding structures, etc. There is an effect that can be avoided and actively utilize the upper space of the upper frame when necessary.

1 is a perspective view of a back gauge device of a sheet metal working machine according to an embodiment of the present invention;
2 is a rear perspective view of FIG. 1;
3 is an enlarged view of a region A of FIG. 1;
4 and 5 are side views showing the operation of the back gauge device, respectively;
6 is a perspective view of a back gauge device of a sheet metal working machine according to another embodiment of the present invention;
7 is a rear perspective view of FIG. 6, FIG.
FIG. 8 is a perspective view of FIG. 6 from another angle;
9 and 10 are enlarged views of regions B and C of FIG. 8, respectively;
11 and 12 are side views illustrating the operation of the back gauge device shown in FIG. 6, respectively.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a perspective view of a back gauge device of a sheet metal processing machine according to an embodiment of the present invention, FIG. 2 is a rear perspective view of FIG. 1, FIG. 3 is an enlarged view of a region A of FIG. 1, and FIGS. 4 and 5 are These are side views showing the operation of the back gauge device, respectively.

As shown in these figures, the back gauge device of the sheet metal working machine of this embodiment includes a lower frame 110, an upper frame 120 capable of driving forward and lowering or lowering relative to the lower frame 110, and a lower frame. It is provided in the region between the 110 and the upper frame 120 is provided with an elevating drive unit 130 for driving the elevating the upper frame 120 relative to the lower frame (110).

The back gauge device of the present embodiment discloses a structure in which the upper frame 120 is moved up and down with respect to the lower frame 110 by manual operation of the elevating drive unit 130 as described below. When using the lower drive unit 130, it may be preferable that the back gauge device of the present embodiment is mainly applied to a small size.

The bottom frame 110 forms the bottom of the device. As shown, the lower frame 110 may be manufactured in a substantially '' 'shape.

On the contrary, the upper frame 120 has a straight shape, and can move forward and backward in the + X direction or the -X direction of FIG. 1 with respect to the lower frame 110 as well as move up and down in the + Z direction or the -Z direction of FIG. This is possible. The upper frame 120 may be provided with a plurality of fastening devices 122.

The forward and backward driving of the upper frame 120 may be performed by a linear guide (not shown) between the upper frame 120 and the lower frame 110, and the lowering driving of the upper frame 120 may be a lowering driving unit ( 130).

In this embodiment, the elevating driving unit 130 is provided in a pair to be symmetrical in the area between the lower frame 110 and the upper frame 120. Therefore, hereinafter, one up and down driving unit 130 shown in FIGS. 2 and 3 will be described, and the rest will be given the same reference numerals.

When the components for raising and lowering the upper frame 120 are disposed in an area between the lower frame 110 and the upper frame 120 as in the present embodiment, the upper space of the upper frame 120 may maintain an empty space unlike the conventional art. Therefore, there is an advantage that can avoid interference with the surrounding structure, and actively utilize the upper space of the upper frame 120 when necessary.

The lifting drive unit 130, the lifting block 131 is coupled to the lower end of the upper frame 120, the fixed block 132 is coupled to one side of the lower frame 110, and the upper frame 120 Ball screw 133 is screwed to the fixed block 132 so as to penetrate the fixed block 132 in the + Z direction or -Z direction of FIG. The handle 134 is screwed to the screw 133 to rotate the ball screw 133 in the forward and reverse directions.

The elevating block 131 may be screwed to the lower end of the upper frame 120 as the upper end of the ball screw 133 is respectively supported. At this time, the front portion of the elevating block 131 may be provided to protrude a predetermined length from the front end of the upper frame 120, as shown in Figure 1, the upper end of the ball screw 133 may be supported.

The fixed block 132 is a part supporting most of the components of the elevating drive unit 130 except the elevating block 131. As shown in the drawing, the fixing block 132 may be connected to one side of the lower frame 110. The method of connection can be welding or bolting.

The ball screw 133 is raised and lowered based on the rotation operation of the handle 134 so that the upper frame 120 is up in the + Z direction as shown in FIG. 4 with respect to the lower frame 110, or -Z as shown in FIG. It serves to be down in the direction.

The handle 134 is a part directly operated by the worker for implementing the operation of the ball screw 133. Although it may be manufactured in a faucet type, in the present embodiment, the handle 134 is manufactured in a plate type. A plurality of tool insertion holes 134a are formed in the handle 134 at equal intervals along the circumferential direction thereof. Therefore, the operator can insert the appropriate tool into the tool insertion hole 134a to drive the upper frame 120 up and down while rotating the handle 134 in the forward or reverse direction.

In addition to these structures, the elevating drive unit 130 of the present embodiment is coupled to the fixed block 132 at a position adjacent to the ball screw 133 of the upper frame 120 according to the forward and reverse rotation of the ball screw 133. A guide rod 135 for guiding the lifting and lowering driving is further provided. Due to the guide rod 135, the lifting and lowering of the upper frame 120 can be made stable.

Hereinafter, due to the structure and operation of the elevating driving unit 130, the upper frame 120 is up (up) in the + Z direction as shown in FIG. 4 or down in the -Z direction as shown in FIG. 5 with respect to the lower frame 110. The process of down) will be described in detail with reference to FIG. 3 as follows.

First, an operator inserts a suitable tool into one of the tool insertion holes 134a of the handle 134 to rotate the handle 134, for example, in one direction. Then, as the ball screw 133 connected to the handle 134 is rotated and the lifting block 131 is pushed upward, the upper frame 120 is up in the + Z direction with respect to the lower frame 110 as shown in FIG. 4. Can be

Next, in contrast to the above, the operator inserts the tool into the other tool insertion hole 134a of the handle 134 to rotate the handle 134 in the reverse direction. Then, the ball screw 133 connected to the handle 134 is rotated in a direction opposite to the above direction so that the upper frame 120 can be down in the -Z direction with respect to the lower frame 110 as shown in FIG. 5. do.

As described above, according to the present exemplary embodiment, as a simple structure, the elevating driving operation of the upper frame 120 with respect to the lower frame 110 may be conveniently performed. In particular, the upper space of the upper frame 120 may be different from the conventional space. Since no structure is provided, interference with surrounding structures may be avoided, and if necessary, the upper space of the upper frame 120 may be actively utilized.

Figure 6 is a perspective view of a back gauge device of a sheet metal working machine according to another embodiment of the present invention, Figure 7 is a rear perspective view of Figure 6, Figure 8 is a perspective view of Figure 6 from a different angle, Figures 9 and 10 respectively 8 are enlarged views of regions B and C of FIG. 8, and FIGS. 11 and 12 are side views illustrating the operation of the back gauge device shown in FIG. 6, respectively.

As shown in these figures, the back gauge device of the sheet metal working machine of the present embodiment includes a lower frame 210, an upper frame 220 capable of driving forward and lowering relative to the lower frame 210, and a lower frame. It is provided in the area between the 210 and the upper frame 220 is provided with a lifting and lowering drive electric unit 230 for driving the upper and lower frames 220 with respect to the lower frame (210).

The back gauge device of the present embodiment discloses a structure in which the upper frame 220 is raised and lowered with respect to the lower frame 210 by the power of the driving motor 233 which will be described later. In this case, the driving motor 233 is used. There is a convenient advantage over hand operation. Therefore, it may be preferable that the back gauge device of the present embodiment is mainly applied to a large size.

The lower frame 210 forms the bottom of the device. As shown, the lower frame 210 may be manufactured in a substantially '' 'shape.

On the contrary, the upper frame 220 has a straight shape and is capable of moving forward and backward in the + X direction or the -X direction of FIG. 6 with respect to the lower frame 210 as well as lifting and lowering in the + Z direction or the -Z direction of FIG. This is possible. The upper frame 220 may be provided with a plurality of fastening devices 222.

The forward and backward driving of the upper frame 220 may be performed by a linear guide (not shown) between the upper frame 220 and the lower frame 210, and the elevating driving of the upper frame 220 is the elevating driving electric unit. 230 may be performed by.

Lifting and lowering driving transmission unit 230 is provided in a pair of left and right symmetrical in the region between the lower frame 210 and the upper frame 220 except for the drive motor 233 and the rotating shaft 243 to be described later. Since the components for raising and lowering the upper frame 220 are disposed in an area between the lower frame 210 and the upper frame 220, the upper space of the upper frame 220 can maintain an empty space, An interference phenomenon and the like can be avoided, and if necessary, the upper space of the upper frame 220 can be actively utilized.

The elevating driving electric unit 230 is coupled to the lower end of the upper frame 220, the first and second elevating blocks 231a, 231b are spaced apart from each other, is coupled to one side of the lower frame 210 and mutually The first and second fixing blocks 232a and 232b spaced apart from each other, a driving motor 233 provided on the lower frame 210 side and capable of rotating in the forward and reverse directions, and the upper frame 220 are driven up and down First and second screws screwed to the first and second fixing blocks 232a and 232b in the + Z direction or the −Z direction of FIG. 6, respectively, and having an upper end contacting the first and second lifting blocks 231a and 231b, respectively. And two ball screws 234a and 234b and a motion transfer part 240 for transmitting the rotational motion from the driving motor 233 to the rotational motion of the first and second ball screws 234a and 234b.

The first and second lifting blocks 231a and 231b may be screwed to the lower end of the upper frame 220 as the upper end portions of the first and second ball screws 234a and 234b are respectively supported. The first and second fixing blocks 232a and 232b support portions of the elevating driving electric unit 230 except for the driving motor 233. On the other hand, the drive motor 233 may be a stepping motor, for example, a controllable rotational speed and angle in the forward and reverse directions.

As shown in FIG. 9, the exercise transmission unit 240 is coupled to the first and second ball screws 234a and 234b and corresponding ones together with the first and second ball screws 234a and 234b. Rotating first and second pinion gears 241a and 241b and first and second rack gears 242a and 242b toothedly engaged with the first and second pinion gears 241a and 241b are formed at both ends. A driving sprocket 244 connected to the rotating shaft 243, a motor shaft (not shown) of the driving motor 233, a driven sprocket 245 connected to one side of the rotating shaft 243, and a driving and driven sprocket 244. And a chain 246 connecting 45.

The elevating drive electric unit 230 of the present embodiment including the exercise transmission unit 240 includes first and second support blocks 235a and 235b for rotatably supporting both ends of the rotation shaft 243, and Coupled to the first and second fixing blocks 232a and 232b at positions adjacent to the first and second ball screws 234a and 234b, respectively, according to the forward and reverse rotation of the first and second ball screws 234a and 234b. Further provided with first and second guide rods (236a, 236b) for guiding the lowering drive of the upper frame (220). Due to the first and second guide rods 236a and 236b, the elevating driving of the upper frame 220 can be stably performed.

Hereinafter, due to the structure and operation of the elevating drive electric unit 230, the upper frame 220 is up (up) in the + Z direction as shown in FIG. 11 or down in the -Z direction as shown in FIG. 12 with respect to the lower frame 210. Looking at the (down) process with reference to Figures 9 and 10 in detail as follows.

First, the drive motor 233 rotates in one direction, for example. Then, the rotational force from the drive motor 233 is transmitted to the rotation shaft 243 through the drive sprocket 244, the chain 246 and the driven sprocket 245.

When the rotation shaft 243 starts to rotate, the first and second pinion gears 241a and 241b which are tooth-engaged with the first and second rack gears 242a and 242b provided at both ends of the rotation shaft 243 rotate. Will rotate. Accordingly, the first and second ball screws 234a and 234b coupled to the first and second pinion gears 241a and 241b rotate to push the first and second lifting blocks 231a and 231b upward. Accordingly, the upper frame 220 may be up in the + Z direction with respect to the lower frame 210 as shown in FIG. 11.

Next, when the driving motor 233 rotates in the reverse direction, the rotational force from the driving motor 233 is transmitted to the rotating shaft 243 through the driving sprocket 244, the chain 246 and the driven sprocket 245. Then, the upper frame as the rotational force is transmitted through the first and second rack gears (242a, 242b), the first and second pinion gears (241a, 241b), and the first and second ball screws (234a, 234b). The 220 may be lowered in the -Z direction with respect to the lower frame 210 as shown in FIG. 12.

As such, according to the present embodiment, as a simple structure, the elevating driving operation of the upper frame 220 with respect to the lower frame 210 can be conveniently performed, and in particular, the upper space of the upper frame 220 is different from the conventional one. Since no structure is provided, interference with surrounding structures may be avoided, and if necessary, the upper space of the upper frame 220 may be actively utilized.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

110: lower frame 120: upper frame
130: elevating drive unit 131: elevating block
132: fixed block 133: ball screw
134: handle 134a: tool insertion hole
135: guide rod

Claims

Lower frame;
An upper frame capable of being driven forward or downward with respect to the lower frame; And
A lowering driving unit provided in an area between the lower frame and the upper frame to drive the upper frame to the lower frame;
The elevating drive unit,
A lifting block coupled to the lower end of the upper frame;
A fixed block coupled to one side of the lower frame;
A ball screw screwed to the fixed block to penetrate the fixed block along a direction in which the upper frame is driven up and down (1 + Z, -Z), and an upper end thereof contacts the lifting block; And
The back gauge device of the sheet metal processing machine, characterized in that it comprises a handle screwed to the ball screw to rotate the ball screw in the forward and reverse directions.

The method of claim 1,
The handle of the back gauge device of the sheet metal working machine, characterized in that the plurality of tool insertion holes are formed at equal intervals in the circumferential direction.

The method of claim 1,
The elevating drive unit further includes a guide rod coupled to the fixed block at a position adjacent to the ball screw to guide the elevating drive of the upper frame according to the forward and reverse rotation of the ball screw. Back gauge device for sheet metal processing machinery.

The method of claim 1,
The lifting and lowering driving unit is a manual operation, the back gauge device of the sheet metal working machine, characterized in that provided in a pair symmetrically in the area between the lower frame and the upper frame.

Lower frame;
An upper frame capable of being driven forward or downward with respect to the lower frame; And
A lowering driving unit provided in an area between the lower frame and the upper frame to drive the upper frame to the lower frame;
The elevating drive unit,
First and second lifting blocks coupled to the lower end of the upper frame and spaced apart from each other;
First and second fixing blocks coupled to one side of the lower frame and spaced apart from each other;
A drive motor provided on the lower frame side and capable of rotation in a forward and reverse direction;
First and second screwed to the first and second fixing blocks, respectively, along the direction (1 + Z, -Z) in which the upper frame is driven up and down, and the first and second upper end is in contact with the first and second lifting blocks, respectively. Ball screw; And
The back gauge device of the sheet metal processing machine, characterized in that it comprises a movement transfer unit for transmitting the rotational movement from the drive motor to the rotational movement of the first and second ball screw.

The method of claim 5,
The exercise transmission unit,
First and second pinion gears coupled to the first and second ball screws and corresponding ones to rotate together with the first and second ball screws;
A rotating shaft having first and second rack gears which are tooth-engaged with the first and second pinion gears, respectively;
A drive sprocket connected to the motor shaft of the drive motor;
A driven sprocket connected to one side of the rotating shaft; And
Back gauge device of a sheet metal working machine, characterized in that it comprises a chain connecting the driven and driven sprocket.

The method of claim 6,
The elevating drive unit,
First and second support blocks rotatably supporting both ends of the rotation shaft; And
Coupled to the first and second fixing blocks, respectively, at positions adjacent to the first and second ball screws to guide the elevating driving of the upper frame according to the forward and reverse rotation of the first and second ball screws. The back gauge device of the sheet metal working machine further comprises a first and second guide rods.

The method of claim 6,
The lifting and lowering driving unit is a back gauge device of the sheet metal working machine, characterized in that provided in the pair of left and right symmetrical in the region between the lower frame and the upper frame except for the drive motor and the rotary shaft.