KR102061427B1 - An apparatus for bending a frame using a power turntable - Google Patents

Abstract

The present invention relates to a frame two stage bending apparatus using a non-powered turntable capable of consecutively bending the frame of a straight shape twice at a right angle. Specifically, the frame two stage bending apparatus using the non-powered turntable of the present invention allows the frame to bend while the turntable rotates in a non-powered manner by two sets of cam units which are lifted from an upper part side and two sets of cam units which are lifted from a lower part side.

Description

An apparatus for bending a frame using a power turntable}

The present invention relates to a frame two-stage bending apparatus using a non-powered turntable, and relates to a frame two-stage bending apparatus using a non-powered turntable that can be continuously bent two times a straight frame.

Particularly, the present invention is a frame two-stage bending apparatus using a non-powered turntable that allows the turntable to bend the frame while rotating the powerlessly by two sets of cam units that are elevated on the upper side and two sets of lifting units that are lifted on the lower side. It is about.

For example, an LCD monitor may include a display unit for displaying an image, a frame coupled to an edge of the display unit, a PCB assembly having a circuit such that an electrical signal applied to the display unit implements each image, and the components to be embedded. It consists of front and rear cabinets that form the case.

Typically, since the display unit has a rectangular structure, as illustrated in FIG. 2, the frame 11 has a rectangular frame structure.

In general, the frame 11 is fabricated by punching it into the shape of the frame 11 before bending to the metal disc 10, as shown in FIG.

However, when the fabrication of the frame 11 is integrally formed from the metal original plate 10 as described above, there is a problem that the metal original plates 10 outside and inside the punched frame 11 are discarded uselessly.

A frame bending apparatus for solving this problem is disclosed in Korean Patent Registration No. 10-0875543 and is shown in FIGS. 5 and 6. 3 and 4, a device for bending a frame into a "b" shape, wherein the two frames 20 bent in a "b" shape are mutually welded (25) as shown in FIG. By making the frame 20 of the rectangular frame shape to thereby reduce the loss of the metal disc as described above.

However, as the monitor has recently been enlarged, the rectangular frame has also been enlarged. In this case, assembling a large rectangular frame at the edge of the monitor is cumbersome.

To this end, as shown in Figure 7, after bending at a frame of the rectangular frame shape having four first to fourth bent portions bent at right angles and disconnected from one side, connecting both ends of the bent frame to a separate frame Work to assemble is required.

Korean Patent Registration No. 10-0875543

The present invention has been created to solve the above problems, a non-powered turntable having four first to fourth bent portions bent at right angles to enable continuous bending of the frame of the rectangular frame shape is disconnected from one side The purpose is to provide a frame two-stage bending device using.

According to an aspect of the present invention, there is provided a frame bending apparatus for bending a frame having a straight shape bent to have a horizontal plane and a vertical plane to have first to fourth bent portions and first to fifth edge portions formed at right angles, respectively.

Working table;

A first elevating table disposed on an upper side of the work table to be elevated;

A second elevating table disposed on the other side of the upper part of the work table to be elevated;

A first fixing table fixedly disposed at a lower side of the work table;

A second fixed table fixedly disposed at the other lower side of the work table;

The first bending table having a first turntable rotatably disposed on the first elevating table and having a first long hole formed from an center to an edge thereof, and a first towing block fixed to an edge of the first turntable and to which the frame is coupled; A first bending unit for forming a portion;

A first cam unit including a first a cam bar disposed on an upper side of the first bending unit and having an inclined surface for rotating in conjunction with the first turn table;

The second bending table having a second turn table rotatably disposed on the second elevating table and having a second long hole formed at an edge from the center thereof, and a second towing block fixed to an edge of the second turn table and coupled to the frame; A second bending unit forming a part;

A second cam unit including a second cam bar disposed on an upper side of the second bending unit, the second bending bar being inclined to rotate in conjunction with the second turn table;

A third turntable having a third turntable rotatably disposed on the first fixing table and having a third long hole formed from the center to an edge, and a third towing block fixed to an edge of the third turntable and coupled to the frame; A third bending unit forming a part;

A third cam unit including a third cam bar disposed on a lower side of the third bending unit and having an inclined surface which rotates in association with the third turn table;

The fourth bending table including a fourth turntable rotatably disposed on the second fixing table and having a fourth long hole formed from the center to the edge, and a fourth towing block fixed to the edge of the fourth turntable and coupled to the frame; A fourth bending unit forming a part;

And a fourth cam unit including a fourth a cam bar which is disposed on the lower side of the fourth bending unit and is inclined to form an inclined surface for interlocking with the fourth turn table.

The first and second lifting tables are lowered to the positions of the first and second fixing tables while the first and second lifting tables are raised relative to the first and second fixing tables, and the first and second cam units are lowered. The first and second bent parts are formed by operation and the first and second bent units,

The third and fourth bent parts may be formed by the lifting operation of the third and fourth cam units and the third and fourth bent units.

In addition, in the device of the present invention, each of the first cam unit includes a first b cam bar and a first c cam bar, including the first a cam bar having an inclined surface formed on each side of the first cam unit.

The second cam unit is elevated together with the first cam unit, each of which includes a second b cam bar and a second c cam bar, including the second a cam bar having an inclined surface formed on an upper side and a long side, respectively.

The first bending unit is disposed opposite to the first elevating table, and interlocked with the first b cam bar and the first c cam bar reciprocating in the opposite direction to each other and the first block and the gripping block for holding or releasing the frame, A third a moving block disposed on the first elevating table so as to be movable in the same direction as the second a moving block and moving in association with the first a cam bar, and fixed to the third a moving block, and having a lower end thereof at the first hole; A first push rod slidably coupled to rotate the first turntable, a first fixed block disposed opposite to the third a moving block, fixed to the first lift table, and guiding the first towing block; A plurality of first restoring springs for restoring the first, second, and third moving blocks;

The second bending unit is disposed opposite to the second elevating table, the first b, 2b moving blocks for reciprocating in opposite directions to each other in conjunction with the second b cam bar and the second c cam bar, and holding or releasing the frame; A third b moving block disposed on the second elevating table to be movable in the same direction as the second b moving block and moving in association with the second a cam bar, and fixed to the third b moving block and having a lower end thereof at the second hole; A second push rod which is slidably coupled to rotate the second turn table in a direction opposite to the first turn table, and is disposed opposite to the third b moving block and fixed to the second elevating table to guide the second towing block; A second fixing block and a plurality of second restoring springs for restoring each of the first b, 2 b and 3 b moving blocks;

The first turntable and the second turntable are moved while the first a cam bar and the second a cam bar are lowered while the first a moving block, the second a moving block, and the first b moving block and the second b moving block hold the frame. The first and second bent portions are formed by rotating in opposite directions.

In addition, in the apparatus of the present invention, each of the third cam unit includes a third b cam bar and a third c cam bar, including the third a cam bar which is formed to be long and vertically long and has an inclined surface on one surface thereof.

The fourth cam unit is elevated together with the third cam unit, each of which includes a fourth b cam bar and a fourth c cam bar, including the fourth a cam bar having an inclined surface formed on an upper side and a long side, respectively.

The third bending unit is disposed opposite to the first fixing table and reciprocally moved in opposite directions to each other in conjunction with the third b cam bar and the third c cam bar, and the first c and 2c moving blocks for holding or releasing the frame; A third c moving block disposed on the first fixing table so as to be movable in the same direction as the second c moving block and moving in association with the third a cam bar, and fixed to the third c moving block and a lower end of the third c moving block; A third push rod slidably coupled to rotate the third turntable, a third fixed block disposed opposite to the third c moving block, fixed to the first fixing table, and guiding the third towing block; A plurality of third restoring springs for restoring the first c, 2c, and 3c moving blocks;

The fourth bending unit is disposed opposite to the second fixing table, and interlocked with the fourth b cam bar and the fourth c cam bar to reciprocate in opposite directions, respectively, and the first and second d moving blocks for holding or releasing the frame. And a third d moving block disposed on the second fixing table in the same direction as the second d moving block and moving in association with the fourth a cam, and fixed to the third d moving block and having a lower end thereof at the fourth hole. A fourth push rod which is slidably coupled to the fourth turn table to rotate the fourth turn table in a direction opposite to the third turn table, and is disposed to face the third fixed block so as to be fixed to the second fixing table and to guide the fourth towing block. A fourth fixed block and a plurality of fourth restoring springs for restoring the first, second and third moving blocks,

The third turntable and the fourth turntable are lifted while the thirda and fourtha cam bars are raised while the first c moving block, the second c moving block, and the first d moving block and the second d moving block hold the frame. The third and fourth bent portions are formed by rotating in opposite directions.

In the device of the present invention, a locking step is formed on an outer circumferential surface of the first, second, third and fourth turntables,

It is coupled to the first and second lifting table and the first and second fixed table so as to be slidably movable, and one end thereof is elastically in close contact with the outer circumferential surface of each of the first, second, third and fourth turntables. A plurality of locking rods which are locked and provided with a release lever for unlocking the locking at the other end;

It is characterized in that it is provided with a pressing spring for bringing the locking rods into close contact with the outer circumferential surface of each turntable.

The frame two-stage bending device of the present invention enables to continuously bend the frame 10 of the rectangular frame shape is disconnected from one side, in particular two sets of cam units to be elevated on the upper side and two sets of lifting on the lower side The unit allows the turntable to rotate without power and to bend the frame.

1 and 2 is a schematic diagram illustrating a conventional frame bending,
3 and 4 is a schematic diagram illustrating a process of manufacturing a monitor frame, such as LCD, PDP, using a frame bent by a conventional bending device,
5 and 6 is a schematic view for explaining the operating state of the conventional bending apparatus,
7 is a schematic cross-sectional view showing a frame in a bent state with the device of the embodiment of the present invention;
8 is a plan view showing a frame before bending;
9 is a cross-sectional view of FIG. 8,
10 is a plan view of the device of the present invention showing a state in which the pre-bending frame is seated on the first and second bending units;
11 is a plan view of the apparatus of the present invention in a state where the first and second bent portions are formed in a frame;
12 is a plan view of the apparatus of the present invention in a state in which the first and second bent portions and the third and fourth bent portions are formed;
13A and 13B are an operation diagram for explaining an operating state of the first bending unit;
14 is a photograph showing a first bending unit and a first cam unit;
15a and 15b is a photograph showing the operating state of the third and fourth bending units,
16 is a schematic diagram illustrating an operating state of the second cam unit;
17 is a schematic diagram illustrating an operating state of the third cam unit;
18 is a perspective view showing a main portion of a first bending unit;
19A and 19B are operation diagrams for explaining locking and unlocking states of the first turntable.

In the frame two-stage bending apparatus using the non-powered turntable of the embodiment of the present invention, as shown in Figures 7 to 9, the length of the frame 10 in the longitudinal direction having a horizontal plane (10a) and a vertical plane (10b), respectively Continuous bending is possible to have the first to fifth bends 11 to 15 and four bent first to fourth bent portions 16, 17, 18, and 19.

In particular, the bending device of the present invention allows the frame to be bent while the turntable is interlocked and rotated by a cam unit lifted from the upper or lower portion.

Referring to Fig. 10 showing the bending device of the embodiment of the present invention, it comprises a work table 1; A first elevating table (105) disposed on an upper side of the work table (1) so as to be elevated; A second elevating table 205 disposed on the other side of the upper side of the work table 1 so as to be elevated; A first fixing table 305 fixedly disposed at a lower side of the work table 1; A second fixing table 405 is fixedly disposed at the other lower side of the work table 1.

The first and second elevating tables 105 and 205 are operated by the cylinders 106 and 206, respectively, and the first and second fixed tables 305 are located at the upper positions of the first and second fixed tables 305 and 405. It is raised and lowered to the same plane position as 405 (see FIG. 16).

A first bending unit 100 for forming the first bent portion 16 is disposed on the first elevating table 105, and the first bending unit 100 is rotatably mounted on the first elevating table 105. A first turntable 150 disposed and a first turntable 150 formed with a first long hole 151 from a central portion thereof, and a first towing block 155 fixed to an edge of the first turntable 150 and to which the frame 10 is coupled; do.

A second bending unit 200 for forming the second bent portion 17 is disposed on the second lifting table 205, and the second bending unit 200 is rotatable to the second lifting table 205. The second turn table 250 is disposed and has a second long hole formed from the center to the edge side, and a second towing block 255 fixed to the edge of the second turn table 250 and to which the frame 10 is coupled.

A third bending unit 300 for forming the third bent portion 18 is disposed on the first fixing table 305, and the third bending unit 300 is rotatable to the first fixing table 305. And a third towing block 355 fixed to an edge of the third turn table 350 and having a third long hole formed at an edge from the center thereof to the edge of the third turn table 350.

A fourth bending unit 400 for forming the fourth bent portion 19 is disposed on the second fixing table 405, and the fourth bending unit 400 is rotatable to the second fixing table 405. And a fourth turn table 450 disposed at the center and having a fourth hole from the center to the edge thereof, and a fourth tow block 455 fixed to the edge of the fourth turn table 450 and to which the frame 10 is coupled.

14 to 16, the first cam unit 510 and the upper side of the first bending unit 100 and the upper side of the second bending unit 200 are operated by cylinders 515 and 615, respectively. The second cam unit 610 is disposed to be elevated.

15B and 17, the lower side of the third bending unit 300 and the lower side of the fourth bending unit 400 are operated by cylinders 306 and 406, respectively, to form a third cam unit 710. The fourth cam unit 810 is disposed to be liftable.

10 and 11, the schematic operation of the bending device is in a state in which the first and second lifting tables 105 and 205 are raised relative to the first and second fixing tables 305 and 405. The frame 10, which is long in the longitudinal direction, is seated on the first and second bending units 100 and 200, and the first and second cam units 510 and 610 are lowered to lower the first and second frames. By operating the first and second cam units 510 and 610, the second elevating table 105 and 205 are lowered to the positions of the first and second fixing tables 305 and 405. The first and second bent portions 16 and 17 are formed by interlocking the two bent units 100 and 200.

12 and 15B, the third and fourth bent parts may be interlocked by interlocking the third and fourth bent units 300 and 400 in the ascending operation of the third and fourth cam units 710 and 810. (18) (19) are formed.

In the above, the first and second bent portions (16, 17) with the first and second lifting table (105, 205) raised relative to the first and second fixed table (305, 405). When the first and second bent portions 16 and 17 are formed in the long frame 10 in the longitudinal direction, both ends of the frame 10 are pivoted, and both ends of the frame 10 are formed in the first and second bent portions 16 and 17. This is to prevent interference with components installed in the first and second fixing tables 305 and 405.

In the bending device of the embodiment of the present invention, since the configuration of each of the first, second, third, fourth bending units 100, 200, 300, 400 is the same, the configuration of the first bending unit 100 is described in detail. The rest of the bending unit will be described in brief.

In addition, the configuration of each of the first and second cam units 510 and 610 is the same, and the configuration of each of the third and fourth cam units 710 and 810 is the same.

The first and second cam units 510 and 610 are disposed on an upper side of the first and second bending units 100 and 200 to be lifted up and down and the third and fourth cam units 710 and 810. ) Has been described to be elevated by being disposed below the third and fourth bending units 300 and 400, but may be arranged and operated in the opposite position.

Referring to FIGS. 14 to 16, the first cam unit 510 is formed to be vertically long and vertically, and includes first and second cam bars 511, 1b cam bars 512, and first c cam bars 513, each having an inclined surface on one surface thereof. Is arranged in a triangular shape, and is moved up and down by the operation of the cylinder (51).

Referring to FIGS. 10 and 14, the first elevating table 105 includes a first a cam ball 101 so that each of the first a cam bar 511, the first b cam bar 512, and the first c cam bar 513 enters the first elevating table 105. The 2a cam ball 102 and the 3a cam ball 103 are formed.

Similarly to the first cam unit 510 and the first elevating table 105, the second cam unit 610 and the second elevating table 205 may also have a second cam bar 611, a second b cam bar 612, and the like. Since the second c cam bar 613 and the cam holes are formed, detailed description thereof will be omitted.

10, 13, and 18, the first bending unit 100 is disposed opposite to each other on the first elevating table 105 and respectively on the first b cam bar 512 and the first c cam bar 513. 1a and 2a moving blocks 110 and 210 for interlocking and reciprocating in opposite directions and holding or releasing the frame 10 and the second lifting block 120 to the first lifting table 105. 3a moving block 130 is disposed to be movable in the same direction as the move and interlocked with the first a cam bar 511, and fixed to the third a moving block 130, the lower end is the first long hole 151 The first push rod 135 to be slidably coupled to the first turn table 150 to rotate the first turn table 150 and the third a moving block 130 are fixed to the first elevating table 105. A first fixed block 140 for guiding the first towing block 155, and a plurality of first to restore the first 1, 2a, 3a moving blocks (110, 120, 130) The restoration spring 161 is provided.

In the first bending unit 100 having the above configuration, the first a moving block 110 and the second a moving block 120 are close to each other by the lowering operation of the first b cam bar 512 and the first c cam bar 513. The frame 10 is gripped while being moved in the direction, and the first towing block 155 is rotated by the lowering operation of the first a cam bar 511 to bend the frame 10 to bend the first bent portion 16. To form.

Referring to FIG. 10, the second bending unit 200 has a difference in that the second turn table 250 is rotated in the opposite direction to the first turn table 150, and the rest of the configuration is the first bending unit ( Since it has the same configuration as 100), a detailed description will be omitted, and in the following operation description, the same configuration as that of the first bending unit 100 will be described by applying different codes.

10 and 11, the first and second bending units 100 and 200 as described above may include the first moving block 110, the second moving block 120, and the first moving block 210. The first turntable 150 and the second turntable 250 are lowered while the first a cam bar 511 and the second a cam bar 611 are lowered while the second b moving block 220 grips the frame 10. Are rotated in opposite directions to form the first and second bent portions 16 and 17.

15B and 17, the third cam unit 710 is moved up and down by the operation of the cylinder 715. Each of the third cam bar 711, which is formed vertically long and has an inclined surface on one surface thereof, And a 3b cam bar 712 and a third c cam bar 713.

The fourth cam unit 810 has the same configuration as that of the third cam unit 710 and is similarly lifted by a cylinder, and each of the fourth cam bar 811 is formed to be vertically long and has an inclined surface on one surface thereof. And a fourth b cam bar 812 and a fourth c cam bar 813. (The reference numerals are omitted in FIG. 15B.)

The third and fourth bending units 300 and 400 have the same configuration as the first and second bending units 100 and 200, except that the third and fourth turn tables have a rotation direction of the first and second turn tables ( 150 and 250 in the opposite direction.

The third bending unit 300 is disposed opposite to the first fixing table 305 and interlocked with the third b cam bar 712 and the third c cam bar 713 to reciprocate in opposite directions, respectively, and the frame 10 1c and 2c moving blocks 310 and 320 for holding or releasing), and are movable on the first fixing table 305 in the same direction as the second c moving block 320 and the third a. The third c moving block 330 moved in conjunction with the cam bar 711 and the third c moving block 330 are fixed to the lower end is slidably coupled to the third long hole to rotate the third turn table 350. A third fixing block 340 disposed opposite to the third push rod 335 and the third c moving block 330, fixed to the first fixing table 305, and guiding the third towing block 355. And a plurality of third restoring springs 361 for restoring the respective first c, 2c, and 3c moving blocks.

The fourth bending unit 400 is disposed opposite to the second fixing table 405 and interlocked with the fourth b cam bar 812 and the fourth c cam bar 813 to reciprocate in opposite directions to hold the frame. Alternatively, the first and second d moving blocks 410 and 420 to be released and the second fixing table 405 are arranged to be movable in the same direction as the second d moving block 420 and the fourth a cam bar ( The third turn block 430 moved in conjunction with 811 and the third d moving block 430 are fixed to the lower end is slidably coupled to the fourth long hole to the fourth turn table 450 to the third The fourth push rod 435 which rotates in the opposite direction to the turntable 350 and the third push block 430 are disposed to face the second fixing table 405 and are disposed to face the fourth fixing block 455. A fourth fixed block 440 for guiding the first and a plurality of fourth restoring springs 461 for restoring each of the first, second and third moving blocks; It is provided.

12 and 15B, the third and fourth bending units 300 and 400 may include the first c moving block 310, the second c moving block 320, and the first d moving block 410 and the first moving block 410. While the 3d cam bar 711 and the 4a cam bar 811 are raised while the 2d moving block 420 holds the frame 10, the third turn table 350 and the fourth turn table 450 are moved. The third and fourth bent portions 18 and 19 are formed by rotating in opposite directions.

Meanwhile, referring to FIG. 19, a locking jaw 152 is formed on an outer circumferential surface of the first turn table 150, and a locking rod 170 is movably coupled to the first elevating table 105.

One end of the locking rod 170 is elastically in close contact with the outer circumferential surface of the first turn table 150 by the pressure spring 172, the other end release lever 171 for releasing the locking of the locking rod 170 Is provided.

As shown in FIG. 19A, the first turntable 150 and the first towing block 155 rotate by the lowering operation of the first cam unit 510 while the frame 10 is coupled to the first towing block 150. While the frame 10 is bent as shown in FIG. 19B, when the first cam unit 510 is raised, the third a moving block 130 and the first block are restored by the restoring force of the first restoring spring 161. As the push rod 135 is retracted, the bent frame 10 is unfolded while the first turntable 150 and the first towing block 155 are rotated.

Therefore, even if the first cam unit 510 is raised, the locking structure is required to prevent the first turntable 150 from being restored to its original position so that the bent frame 10 remains in a bent state. After the bending of 10 is completed, the frame 10 is separated from the apparatus, and the locking lever 171 releases the locking of the first turntable 150 by the operation of the release lever to restore the original position.

Since the locking and unlocking structure of the first turntable 150 is applied to the second, third and fourth turntables 250, 350 and 450 in the same structure, a detailed description thereof will be omitted.

The frame bending device having the above configuration is operated as follows.

Referring to FIG. 10, first and second towing blocks 155 of the first and second elevating tables 105 and 205 disposed in the first and second bending units 100 and 200 are first arranged. It is supported by seating on 255.

In this case, the first and second lifting tables 105 and 205 are positioned at positions higher than the first and second fixing tables 305 and 405.

Subsequently, the first and second cam units 510 and 610 are lowered, and the first and second lifting tables 105 and 205 are positioned at the first and second fixing tables 305 and 405 at the lowering force. The first and second bending units 16 and 17 interlock with the first and second bending units 100 and 200 by the operation of the first and second cam units 510 and 610 while descending to To form (see FIG. 11).

As described above, the first and second bent portions 16 and 17 are formed while the first and second lifting tables 105 and 205 are raised relative to the first and second fixing tables 305 and 405. When the first and second bent portions 16 and 17 are formed in the long frame 10 in the longitudinal direction, both ends of the frame 10 are pivoted, and both ends of the frame 10 are rotated in the first direction. This is to prevent interference with the components installed in the two fixing tables 305 and 405.

10, 13, and 14, the first b cam bar 512 and the first c cam bar 513 of the first cam unit 510 are described in detail. Each of the first cam hole 102 and the first c cam hole 103 enters the first a moving block 110 and the second a moving block 120 in a direction facing each other and grips the frame 10.

In addition, as the first a cam bar 511 enters the first a cam ball 101, the first fixing spring 161 is compressed while interlocking the third a moving block 130 and the first push rod 135. Move to block 140.

At this time, the first turn table 150 and the first tow block 155 are rotated in the counterclockwise direction by interlocking with the first push rod 135 being moved to bend the frame 10 to the first bent portion 16. (See FIG. 7).

In addition, as shown in FIG. 19B, when the first bent portion 16 of the frame 10 is completed, the first turn table 150 is locked by the locking rod 170 so as not to be restored to its original position.

Here, the first a moving block 110 and the second a moving block 120 is moved first to hold the frame 10 and the third a moving block 130 is moved to bend the frame 10. This is determined by the difference between the inclination thicknesses of the first b cam bar 512 and the first c cam bar 513 and the inclination thickness of the first a cam bar 511.

Since the operation of forming the second bending unit 17 in the second bending unit 200 is the same as the operation of the first bending unit 100, detailed description thereof will be omitted. (However, the second bending unit 200 is omitted. Rotation direction of the second turn table 250 is opposite to the first turntable 150.

After the first and second bent portions 16 and 17 are formed as described above, the third and fourth bent portions 18 and 19 are formed in the third and fourth bent units 300 and 400.

The process of forming the third bent portion 18 in the third bending unit 300 will be described in detail with reference to FIGS. 7, 12, 15B and 17. When the third b cam bar 712 and the third c cam bar 713 and 713 are raised from the bottom of the first fixing table 305 to interlock with the first c moving block 310 and the second c moving block 320. The frame 10 is gripped to move, and the third a cam bar 711 moves the third c moving block 330 and the third push rod 335 to move the third turn table 350 and the third towing block. The third bent portion 18 is formed while rotating 355 counterclockwise.

Since the operation of forming the fourth bending unit 19 in the fourth bending unit 400 is the same as the operation of the third bending unit 300, detailed description thereof will be omitted. (However, the fourth bending unit 400 is omitted. Rotation direction of the fourth turn table 450 is opposite to the third turn table 350.

In addition, similar to the first bending unit 100, the third and fourth turntables 350 and 450 are locked when the third and fourth bent portions 18 and 19 of the frame 10 are completed. Locked by the 170 is not restored to the original position.

After the first, second, third and fourth bent portions 16, 17, 18 and 19 are formed as described above, the first and second cam units 510 and 610 are raised and the third and fourth Lower the cam units 710 and 810 to separate from the first, second, third and fourth bending units 100, 200, 300 and 400, respectively, and then separate the bent frame 100 from the device. The release lever 171 is operated to allow the first, second, third and fourth turntables 150, 250, 350 and 450 to be restored to their original positions.

The frame two-stage bending device of the present invention as described above is capable of continuously bending the frame 10 in the form of a rectangular frame disconnected from one side, and in particular the two sets of cam units that are lifted from the upper side and is elevated from the lower side Two sets of GAM units allow the turntable to rotate without power and to bend the frame.

10 ... frame 100 ... 1st bending unit
105 ... 1st lifting table 110 ... 1a moving block
120 ... 2a moving block 130 ... 3a moving block
140 1st fixed block 150 1st turntable
155 1st towing block 200 2nd bending unit
205 ... 2nd lifting table 210 ... 1b moving block
220 ... 2b moving block 230 ... 3b moving block
240 ... 2nd fixed block 250 ... 2nd turntable
255 2nd towing block 300 3rd bending unit
305 ... 3rd lifting table 310 ... 1c moving block
320 ... 2c moving block 330 ... 3c moving block
340 3rd fixed block 350 3rd turntable
355 3rd Towing Block 400 4th Bending Unit
405 ... 4th Lift Table 410 ... 1d Moving Block
420 ... 3d mobile block 430 ... 3d mobile block
440 4th fixed block 450 4th turntable
455 4th Towing Block 510 1st Cam Unit
610 ... 2nd Cam Unit 710 ... 3rd Cam Unit
810 ... 4th Cam Unit

Claims (4)

The first to fourth bent portions (16 to 19) and the first to fifth edge portions (11 to 15) respectively forming a straight frame (10) bent to have a horizontal surface (10a) and a vertical surface (10b). In the frame bending apparatus for bending to have,
A work table 1;
A first elevating table (105) disposed on an upper side of the work table (1) so as to be elevated;
A second elevating table 205 disposed on the other side of the upper side of the work table 1 so as to be elevated;
A first fixing table 305 fixedly disposed at a lower side of the work table 1;
A second fixing table 405 fixedly disposed at the other lower side of the work table 1;
A first turntable 150 rotatably disposed on the first elevating table 105 and having a first long hole 151 formed from a central portion to an edge thereof, and fixed to an edge of the first turntable 150 and the frame 10; A first bend unit (100) having a first towing block (155) to which is coupled to form a first bent portion (16);
A first cam unit 510 including a first cam bar 511 disposed on an upper side of the first bending unit 100 and having an inclined surface for rotating in conjunction with the first turntable 150;
A second turn table 250 rotatably disposed on the second elevating table 205 and having a second hole formed from the center to the edge thereof, and a second towing block fixed to an edge of the second turn table and coupled to the frame ( A second bending unit (200) having a 255 to form the second bending portion (17);
A second cam unit 610 including a second cam bar 611 disposed on an upper side of the second bending unit 200 and having an inclined surface for rotating in conjunction with the second turn table;
A third turntable 350 rotatably disposed on the first fixing table 305 and having a third long hole formed from the center to the edge, and a third towing block fixed to an edge of the third turntable and coupled to the frame ( A third bending unit (300) having a 355 to form the third bending portion (18);
A third cam unit 710 disposed on the lower side of the third bending unit 300 and including a third cam bar 711 having an inclined surface which rotates in association with the third turn table 350;
A fourth turntable 450 rotatably disposed on the second fixing table 405 and having a fourth long hole formed from the center to the edge thereof, and a fourth fixed to the edge of the fourth turntable 450 and coupled to the frame; A fourth bending unit (400) having a traction block to form the fourth bending portion (19);
A fourth cam unit 810 including a fourth a cam bar 811 disposed on a lower side of the fourth bending unit 400 and having an inclined surface for rotating in conjunction with the fourth turn table 450; Equipped,
The first and second lift tables are positioned in the first and second fixed tables while the first and second lift tables 105 and 205 are raised relative to the first and second fixed tables 305 and 405. The lowering operation of the first and second cam units 510 and 610 and the first and second bent parts 16 and 17 are formed by the first and second bent units 100 and 200 while being lowered up to. Become,
Ascending operation of the third and fourth cam units 710 and 810 and the third and fourth bent units 300 and 400 allow the third and fourth bent portions 18 and 19 to be formed. Frame two-stage bending device using a non-powered turntable characterized in that. The method of claim 1, wherein the first cam unit 510 is formed up and down each long and each of the first b cam bar 512 and the first c cam bar 513 including the first a cam bar 511 having an inclined surface on each surface Equipped,
The second cam unit is elevated together with the first cam unit, each of which includes a second b cam bar 612 and a second c cam bar 613 including the second a cam bar 611 having an inclined surface on each one of which is elongated vertically. ),
The first bending unit 100 is disposed opposite to each other on the first elevating table 105 and reciprocated in the opposite direction in association with the first b cam bar 512 and the first c cam bar 513, respectively, and the frame ( 10a and 2a moving blocks 110 and 120 for holding or releasing gripping 10) and the first lifting table 105 to be movable in the same direction as the second a moving block 120 and the first and second moving blocks 110 and 120 are held. The 3a moving block 130 moved in conjunction with the 1a cam bar 511 and the 3a moving block 130 are fixed to the 3a moving block 130 and the lower end is slidably coupled to the first long hole 151 so that the first turn table ( A first push rod 135 for rotating 150 and a first push rod 135 disposed opposite to the third moving block 130 and fixed to the first elevating table 105 to guide the first towing block 155. A fixed block 140 and a plurality of first restoring springs 161 for restoring each of the first, second, and third moving blocks 110, 120, and 130;
The second bending unit 200 is disposed opposite to each other on the second elevating table 205 and interlocked with the second b cam bar 612 and the second c cam bar 613 to reciprocate in opposite directions to each other. The first and second movable blocks 210 and 220 gripping or releasing gripping are disposed on the second elevating table 205 to be movable in the same direction as the second b moving block 220. The third turn block 230 which is linked to the movement 611 and the third b move block 230, the lower end is slidably coupled to the second long hole is coupled to the second turn table 250 to the first The second push rod 235 which rotates in the opposite direction to the turntable 150 and the third push block 230 are disposed to face the second elevating table 205 and are fixed to the second elevating table 205 to guide the second towing block. A second fixing block 240 and a plurality of second restoring springs for restoring the respective first b, 2 b and 3 b moving blocks; So,
The first a moving block 110 and the second a moving block 120 and the first b moving block 210 and the second b moving block 220 hold the frame 10 and the first a cam bar. As the second cam bar 611 is lowered, the first turn table 150 and the second turn table 250 are rotated in opposite directions to form the first and second bent portions 16 and 17. Frame two-stage bending device using a non-powered turntable. The third cam unit of claim 1 or 2, wherein the third cam unit includes a third a cam bar 711 having an inclined surface formed on each side of the third cam unit. Equipped,
The fourth cam unit is elevated together with the third cam unit, and includes a fourth b cam bar 811 and a fourth c cam bar 813, each of which includes a fourth a cam bar 811 having an inclined surface on each side thereof. ),
The third bending unit 300 is disposed opposite to each other on the first fixing table 305 and interlocked with the third b cam bar 712 and the third c cam bar 713 to reciprocate in opposite directions to each other. The first c and 2c moving blocks 310 and 320 gripping or releasing, and the third c cam bar disposed on the first fixing table 305 to be movable in the same direction as the second c moving block 320. The third c moving block 330 moved in conjunction with the 711, and the third c moving block 330 is fixed to the lower end is coupled to the third long hole slidably rotates the third turn table 350 A third push block 335 and a third fixing block 340 disposed opposite to the third c moving block 330 and fixed to the first fixing table 305 and guiding the third towing block 355; And a plurality of third restoring springs for restoring the first c, 2c, and 3c moving blocks.
The fourth bending unit 400 is disposed opposite to each other on the second fixing table 405 and reciprocated in the opposite direction in conjunction with the fourth b cam bar 812 and the fourth c cam bar 813, respectively, to move the frame. First and second gripping blocks 410 and 420 that are held or released, and are disposed on the second fixing table 405 so as to be movable in the same direction as the second d moving block 420 and the fourth a cam bar. The third turn block 430 moving in conjunction with the 811 and the 3d moving block 430 are fixed to the lower end portion is slidably coupled to the fourth long hole to the fourth turn table 450 The fourth push rod 435 which rotates in the opposite direction to the third turn table 350 and the third push block 430 are disposed to face the second fixing table 405 and are disposed to face the fourth fixing block 455. A fourth fixed block 440 for guiding the plurality of second blocks, and a plurality of fourth restoring soups for restoring the first, second and Hayeoseo provided with,
The first c moving block 310 and the second c moving block 320 and the first d moving block 410 and the second d moving block 420 hold the frame, and the third a cam bar 711 As the fourth cam bar 811 is raised, the third turn table 350 and the fourth turn table 450 are rotated in opposite directions to form the third and fourth bent portions 18 and 19. Frame two-stage bending device using a non-powered turntable. The method of claim 3, wherein the locking step 152 is formed on the outer peripheral surface of the first, second, third and fourth turntable,
The first and second elevating tables 105 and 205 and the first and second fixed tables 305 and 405 are slidably coupled to each of the first and second elevating tables 105 and 405 and each end thereof is the first, second, third and fourth. A plurality of locking rods 170 which are elastically in close contact with the outer circumferential surface of the turntable and are locked to the locking jaw 152 and have a release lever 171 for releasing the locking at the other end thereof;
Frame locking device using a non-powered turntable, characterized in that it comprises a pressing spring (172) for bringing the locking rods (170) in close contact with the outer peripheral surface of each turntable.

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