Bending machine for sheet metal working

Abstract

The invention relates to the technical field of sheet metal machining equipment, and discloses a bending machine for sheet metal machining, the bending machine comprises a rack, a horizontal rotation adjusting mechanism, a vertical rotation adjusting mechanism and a hydraulic bending mechanism, the rack comprises a circular truncated cone, a rotation assembling groove formed in the circular truncated cone and a support connected to the bottom of the circular truncated cone. According to the hydraulic bending mechanism, the horizontal rotation adjusting mechanism and the vertical rotation adjusting mechanism are arranged, a speed reduction driver in the horizontal rotation adjusting mechanism can drive a horizontal rotation block to rotate in a rotation assembling groove, and therefore adjustment of the hydraulic bending mechanism in the horizontal direction is achieved; and a vertical rotating strip in the vertical rotating adjusting mechanism can rotate in a U-shaped sleeve and is fixed through a fastening bolt, so that the hydraulic bending mechanism is adjusted in the vertical direction, the bending angle and direction are adjusted more flexibly, and the machining requirements of complex sheet metal parts can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing equipment, in particular to a bending machine for sheet metal processing. Background Art

[0002] Sheet metal fabrication is a comprehensive cold working process for thin metal sheets (typically less than 6mm). This includes shearing, punching / cutting / combining, folding, welding, riveting, splicing, and forming (such as automobile bodies). Its most notable characteristic is the consistent thickness of each part. Press brakes are commonly used in sheet metal fabrication, used to bend thin metal sheets to desired shapes.

[0003] Currently, existing sheet metal bending machines have certain limitations during use. The adjustment of bending angle and direction is not flexible enough to meet the processing requirements of complex sheet metal parts. In addition, the stability during the processing is poor, which easily affects the bending accuracy. Therefore, there is a need to improve the existing sheet metal bending machines. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a bending machine for sheet metal processing, which solves the problems raised in the background art.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: A bending machine for sheet metal processing, comprising a frame, a horizontal rotation adjustment mechanism, a vertical rotation adjustment mechanism and a hydraulic bending mechanism.

[0008] The frame includes a circular table, a rotation assembly groove arranged on the circular table, and a bracket connected to the bottom of the circular table.

[0009] The horizontal rotation adjustment mechanism includes a connecting seat, a reduction drive, a horizontal rotation block, a U-shaped sleeve and a bolt assembly hole opened on the U-shaped sleeve. The horizontal rotation block is connected to the drive shaft above the reduction drive, and the horizontal rotation block is rotatably assembled in the rotation assembly groove. The U-shaped sleeve is connected to the top of the horizontal rotation block.

[0010] The vertical rotation adjustment mechanism includes a fastening bolt, a vertical rotation bar and a limiting sliding groove opened on the vertical rotation bar. The vertical rotation bar is adapted to be installed in the U-shaped sleeve. The fastening bolt is used to pass through the bolt assembly hole and fasten the vertical rotation bar.

[0011] The hydraulic bending mechanism includes a hydraulic cylinder, a hydraulic movable shaft, a limiting slider, a bending pressure block and an assembly hole opened on the bending pressure block. The limiting slider is adapted to be installed in the limiting slide groove, the hydraulic cylinder is connected to the hydraulic movable shaft, and the end of the hydraulic movable shaft is connected to the bending pressure block.

[0012] Furthermore, at least three brackets are provided and evenly distributed on the bottom of the truncated table, which can ensure the stability of the frame.

[0013] Furthermore, the driving shaft of the reduction drive and the horizontal rotation block are fixed by key connection or welding, so that the connection is more firm and the stability of power transmission is ensured.

[0014] Furthermore, there is a clearance fit between the vertical rotation bar and the U-shaped sleeve, and the clearance value is 0.1-0.5 mm, which can ensure that the vertical rotation bar can rotate flexibly and a certain assembly accuracy can be guaranteed.

[0015] Furthermore, the cross-sectional shape of the limiting slider and the limiting chute is T-shaped or dovetail-shaped, which can prevent the limiting slider from escaping from the limiting chute and ensure the stability of the movement of the hydraulic bending mechanism.

[0016] Furthermore, the hydraulic cylinder is fixedly installed on one side of the top of the vertical rotating bar, the bending pressure block is made of high-strength alloy steel and is fixedly connected to the end of the limiting slider away from the hydraulic movable shaft, and the surface of the bending pressure block is quenched, which can improve the hardness and wear resistance of the bending pressure block and extend its service life.

[0017] Furthermore, there are two connecting seats that are symmetrically fixedly connected to the bottom end of the cone, and a deceleration drive is fixedly installed between the two connecting seats, making the installation of the deceleration drive more stable.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, by providing a horizontal rotation adjustment mechanism and a vertical rotation adjustment mechanism, the reduction driver in the horizontal rotation adjustment mechanism can drive the horizontal rotation block to rotate in the rotation assembly groove, thereby realizing horizontal adjustment of the hydraulic bending mechanism; the vertical rotation bar in the vertical rotation adjustment mechanism can rotate in the U-shaped sleeve and be fixed by fastening bolts to realize vertical adjustment of the hydraulic bending mechanism, making the bending angle and direction adjustment more flexible and able to meet the processing requirements of complex sheet metal parts.

[0020] 2. In the present invention, by providing at least three brackets evenly distributed at the bottom of the truncated table, and using T-shaped or dovetail-shaped limit sliders in conjunction with the limit slide grooves, the stability of the entire device can be improved and the bending accuracy can be guaranteed. In addition, the bending block is made of high-strength alloy steel and is quenched, which improves the hardness and wear resistance of the bending block, extends its service life, and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall three-dimensional Figure 1 ;

[0022] Figure 2 The overall three-dimensional Figure 2 ;

[0023] Figure 3 A three-dimensional diagram of the frame and horizontal rotation adjustment mechanism of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the vertical rotation adjustment mechanism and the hydraulic bending mechanism of the present invention.

[0025] In the figure: 1. Frame; 2. Horizontal rotation adjustment mechanism; 3. Vertical rotation adjustment mechanism; 4. Hydraulic bending mechanism; 11. Round table; 12. Rotation assembly groove; 13. Bracket; 21. Connecting seat; 22. Speed ​​reduction drive; 23. Horizontal rotation block; 24. U-shaped sleeve; 25. Bolt assembly hole; 31. Fastening bolt; 32. Vertical rotation bar; 33. Limiting slide; 41. Hydraulic cylinder; 42. Hydraulic movable shaft; 43. Limiting slider; 44. Bending pressure block; 45. Assembly hole. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] See also Figures 1 to 4 In an embodiment of the present invention, a bending machine for sheet metal processing includes a frame 1, a horizontal rotation adjustment mechanism 2, a vertical rotation adjustment mechanism 3 and a hydraulic bending mechanism 4.

[0030] The frame 1 includes a circular platform 11 , a rotation assembly slot 12 defined on the circular platform 11 , and a bracket 13 connected to the bottom of the circular platform 11 .

[0031] The horizontal rotation adjustment mechanism 2 includes a connecting seat 21, a reduction drive 22, a horizontal rotation block 23, a U-shaped sleeve 24 and a bolt assembly hole 25 opened on the U-shaped sleeve 24. The horizontal rotation block 23 is connected to the drive shaft above the reduction drive 22, and the horizontal rotation block 23 is rotatably assembled in the rotation assembly groove 12. The U-shaped sleeve 24 is connected to the top of the horizontal rotation block 23.

[0032] The vertical rotation adjustment mechanism 3 includes a fastening bolt 31, a vertical rotation bar 32 and a limiting slide groove 33 opened on the vertical rotation bar 32. The vertical rotation bar 32 is adapted to be installed in the U-shaped sleeve 24. The fastening bolt 31 is used to pass through the bolt assembly hole 25 and fasten the vertical rotation bar 32.

[0033] The hydraulic bending mechanism 4 includes a hydraulic cylinder 41, a hydraulic movable shaft 42, a limiting slider 43, a bending pressure block 44 and an assembly hole 45 opened on the bending pressure block 44. The limiting slider 43 is adapted to be installed in the limiting slide groove 33. The hydraulic cylinder 41 is connected to the hydraulic movable shaft 42, and the end of the hydraulic movable shaft 42 is connected to the bending pressure block 44.

[0034] In this embodiment, three brackets 13 are provided and evenly distributed at the bottom of the truncated table 11, making the frame 1 more stable. The driving shaft of the reduction drive 22 is connected to the horizontal rotating block 23 by a key to ensure the stability of power transmission. The vertical rotating bar 32 and the U-shaped sleeve 24 are clearance-matched, and the clearance value is 0.3mm, which not only ensures that the vertical rotating bar 32 can rotate flexibly, but also ensures a certain assembly accuracy. The cross-sectional shape of the limit slider 43 and the limit slide 33 is T-shaped to prevent the limit slider 43 from The limiting slide 33 is disengaged, and the hydraulic cylinder 41 is fixedly installed on one side of the top of the vertical rotating bar 32. The bending pressure block 44 is made of high-strength alloy steel and is fixedly connected to the end of the limiting slider 43 away from the hydraulic movable shaft 42. The surface of the bending pressure block 44 is quenched to improve the hardness and wear resistance of the bending pressure block 44. There are two connecting seats 21 that are symmetrically fixed to the bottom end of the table 11, and the deceleration drive 22 is fixedly installed between the two connecting seats 21, so that the installation of the deceleration drive 22 is more stable.

[0035] Working principle: When in use, first adjust the horizontal direction of the hydraulic bending mechanism 4 through the horizontal rotation adjustment mechanism 2 according to the processing requirements of the sheet metal, start the deceleration driver 22, and the driving shaft of the deceleration driver 22 drives the horizontal rotation block 23 to rotate in the rotation assembly groove 12, thereby realizing the horizontal rotation of the hydraulic bending mechanism 4, and then adjust the vertical direction of the hydraulic bending mechanism 4 through the vertical rotation adjustment mechanism 3, loosen the fastening bolt 31, rotate the vertical rotation bar 32 to the appropriate angle, and then tighten the fastening bolt 31 to fix it. After adjusting the angle, place the sheet metal under the bending block 44, start the hydraulic cylinder 41, and the hydraulic cylinder 41 drives the hydraulic movable shaft 42 to extend and retract, driving the bending block 44 to move up and down to bend the sheet metal.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A bending machine for sheet metal processing, comprising a frame (1), a horizontal rotation adjustment mechanism (2), a vertical rotation adjustment mechanism (3) and a hydraulic bending mechanism (4); Its characteristics are: The frame (1) comprises a truncated table (11), a rotation assembly groove (12) provided on the truncated table (11), and a bracket (13) connected to the bottom of the truncated table (11); The horizontal rotation adjustment mechanism (2) comprises a connecting seat (21), a reduction drive (22), a horizontal rotation block (23), a U-shaped sleeve (24) and a bolt assembly hole (25) provided on the U-shaped sleeve (24); the horizontal rotation block (23) is connected to the driving shaft above the reduction drive (22), and the horizontal rotation block (23) is rotationally assembled in the rotation assembly groove (12); and the U-shaped sleeve (24) is connected to the top of the horizontal rotation block (23); The vertical rotation adjustment mechanism (3) comprises a fastening bolt (31), a vertical rotation bar (32) and a limiting sliding groove (33) provided on the vertical rotation bar (32); the vertical rotation bar (32) is adapted to be installed in the U-shaped sleeve (24); the fastening bolt (31) is used to penetrate the bolt assembly hole (25) and fasten the vertical rotation bar (32); The hydraulic bending mechanism (4) includes a hydraulic cylinder (41), a hydraulic movable shaft (42), a limiting slider (43), a bending pressure block (44), and an assembly hole (45) provided on the bending pressure block (44); the limiting slider (43) is adapted to be installed in the limiting slide groove (33); the hydraulic cylinder (41) is connected to the hydraulic movable shaft (42); and the end of the hydraulic movable shaft (42) is connected to the bending pressure block (44).

2. A sheet metal bending machine according to claim 1, characterized in that: At least three brackets (13) are provided and are evenly distributed on the bottom of the truncated cone (11).

3. The sheet metal bending machine according to claim 1, characterized in that: The driving shaft of the deceleration driver (22) and the horizontal rotation block (23) are fixed by key connection or welding.

4. The sheet metal bending machine according to claim 1, characterized in that: There is a clearance fit between the vertical rotating bar (32) and the U-shaped sleeve (24), with the clearance value being 0.1-0.5 mm.

5. The sheet metal bending machine according to claim 1, characterized in that: The cross-sectional shapes of the limiting sliding block (43) and the limiting sliding groove (33) are T-shaped or dovetail-shaped.

6. The sheet metal bending machine according to claim 1, characterized in that: The hydraulic cylinder (41) is fixedly installed on one side of the top end of the vertical rotating bar (32); the bending pressing block (44) is made of high-strength alloy steel and is fixedly connected to the end of the limiting slider (43) away from the hydraulic movable shaft (42); and the surface of the bending pressing block (44) is quenched.

7. The sheet metal bending machine according to claim 1, characterized in that: The connecting seats (21) are two and symmetrically fixedly connected to the bottom end of the truncated table (11), and a speed reduction driver (22) is fixedly installed between the two connecting seats (21).

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