A sheet metal bending machine

Abstract

The utility model belongs to the technical field of metal door manufacturing, and discloses a sheet metal bending machine, including a main unit for bending by downward pressure, and also including a transition device for transitional vertical connection installed on the main unit, and a mold assembly for bending sheet metal forming is arranged below the transition device; the transition device includes a connecting frame, the upper part of the connecting frame is provided with a first slide groove, the lower part of the connecting frame is provided with a second slide groove, the top of the connecting frame is evenly distributed with a plurality of first locking nails, and the bottom of the connecting frame is evenly distributed with a plurality of second locking nails; the mold assembly includes an upper module. The sheet metal bending machine described in the utility model avoids thread damage caused by cyclic pressure and prolongs the service life through the setting of vertical locking and fixing; increases the convenience of replacement and maintenance through the setting of sliding connection; and facilitates segmented disassembly and assembly through the setting of multi-section combined connection, thereby increasing applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal door manufacturing, in particular to a plate bending machine. Background Art

[0002] Metal doors are mainly assembled from large pieces of sheet metal. In order to ensure a seamless assembly, the edges of the sheets need to be bent to form interlocking interfaces.

[0003] In contrast, a Chinese patent with announcement number CN208583844U discloses a sheet metal bending machine for manufacturing doors and windows, including a bending upper mold, a hydraulic rod, a frame and a base. Two hydraulic rods are installed on the top side of the frame, and the base is fixed to the lower side of the frame. A mounting assembly is provided at the bottom end of the hydraulic rod, and a bending upper mold is installed inside the mounting assembly.

[0004] However, the thread locking and fixing in the above patent is clamped in the horizontal direction. The upper bending mold is easily deformed and squeezed after being stressed. After multiple cycles, the thread will be damaged, seriously affecting the service life. Therefore, a new equipment needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a plate bending machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sheet metal bending machine comprises a main unit for bending by applying downward pressure, and also comprises a transition device for transitional vertical connection installed on the main unit, a mold assembly for bending sheet metal forming is arranged below the transition device; the transition device comprises a connecting frame, a first slide groove is arranged on the upper part of the connecting frame, a second slide groove is arranged on the lower part of the connecting frame, a plurality of first locking nails are evenly distributed on the top of the connecting frame, and a plurality of second locking nails are evenly distributed on the bottom of the connecting frame; the mold assembly comprises an upper module, a connecting seat is arranged on the top of the upper module, a lower template is arranged below the upper module, a molding groove is arranged in the middle of the lower template, and a plurality of third locking nails are evenly distributed on the lower template.

[0008] Furthermore: the main unit device comprises a main body, two hydraulic cylinders are symmetrically installed on the top of the main body, a lifting plate is installed between the telescopic ends of the hydraulic cylinders, and a limiting groove is arranged in the middle of the main body.

[0009] Furthermore: the hydraulic cylinder is respectively connected to the main body and the lifting plate by bolts.

[0010] Furthermore, the connecting frame is made of 45 steel material, and the first locking nail and the second locking nail are respectively threadedly connected to the connecting frame.

[0011] Furthermore: the connection seat and the upper module are integrally formed, and the connection seat and the connection frame are connected by sliding insertion.

[0012] Furthermore: the lower template and the main body are connected by sliding.

[0013] Compared with the prior art, the beneficial effects are:

[0014] The vertical locking and fixing setting avoids thread damage caused by cyclic pressure and prolongs the service life;

[0015] The sliding connection increases the convenience of replacement and maintenance;

[0016] The multi-section combined connection makes it easy to disassemble and assemble in sections, thus increasing applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a sheet metal bending machine described in the utility model;

[0018] Figure 2 It is a schematic diagram of a main unit of a sheet metal bending machine described in the utility model;

[0019] Figure 3 It is a schematic diagram of a transition device of a sheet metal bending machine described in the utility model;

[0020] Figure 4 It is a right view of a transition device of a sheet metal bending machine described in the utility model;

[0021] Figure 5 It is a schematic diagram of a die assembly of a sheet metal bending machine described in the utility model.

[0022] In the accompanying drawings, 101, main body; 102, hydraulic cylinder; 103, lifting plate; 104, limiting groove; 201, connecting frame; 202, first slide groove; 203, second slide groove; 204, first locking pin; 205, second locking pin; 301, upper module; 302, connecting seat; 303, lower template; 304, molding groove; 305, third locking pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 A sheet metal bending machine includes a main unit for bending by pressing downward force, and also includes a transition device installed on the main unit for transitional vertical connection, and a mold assembly for bending sheet metal forming is arranged below the transition device.

[0025] In this embodiment: the main machine device includes a main body 101, two hydraulic cylinders 102 are symmetrically installed on the top of the main body 101, a lifting plate 103 is installed between the telescopic ends of the hydraulic cylinders 102, a limiting groove 104 is arranged in the middle of the main body 101, the hydraulic cylinders 102 are bolted to the main body 101 and the lifting plate 103 respectively, the main body 101 is fixedly connected to the lower template 303 through the limiting groove 104, and the main body 101 supports the hydraulic cylinders 102 to push the lifting plate 103 up and down to apply a downward bending force;

[0026] In this embodiment: the transition device includes a connecting frame 201, the connecting frame 201 is made of 45 steel material, a first slide groove 202 is arranged on the upper part of the connecting frame 201, a second slide groove 203 is arranged on the lower part of the connecting frame 201, a plurality of first locking nails 204 are evenly distributed on the top of the connecting frame 201, and a plurality of second locking nails 205 are evenly distributed on the bottom of the connecting frame 201, the first locking nail 204 and the second locking nail 205 are respectively threadedly connected to the connecting frame 201, the connecting frame 201 is slidably inserted on the lifting plate 103 through the first slide groove 202, and the first locking nail 204 is tightened to fix it, so that the connecting frame 201 is fixedly connected to the bottom of the lifting plate 103, and then the connecting seat 302 is slidably inserted into it from one end of the second slide groove 203, and the second locking nail 205 is tightened to fix the upper module 301 to the bottom of the lifting plate 103;

[0027] In this embodiment: the mold assembly includes an upper module 301, a connecting seat 302 is provided at the top of the upper module 301, the connecting seat 302 and the upper module 301 are integrally formed, the connecting seat 302 and the connecting frame 201 are slidably connected, a lower template 303 is provided below the upper module 301, the lower template 303 is slidably connected to the main body 101, a molding groove 304 is provided in the middle of the lower template 303, a plurality of third locking nails 305 are evenly distributed on the lower template 303, the lower template 303 is slid into the limiting groove 104, and the third locking nails 305 are tightened to fix the lower template 303 on the main body 101, and the downward bending force pushes the upper module 301 downward through the connecting frame 201 and the connecting seat 302, and cooperates with the molding groove 304 on the lower template 303 to bend the sheet material into shape.

[0028] Working principle: first, slide the connecting frame 201 on the lifting plate 103 through the first sliding groove 202, and tighten the first locking nail 204 to fix it, so that the connecting frame 201 is fixedly connected to the bottom of the lifting plate 103, and then slide the connecting seat 302 into it from one end of the second sliding groove 203, and tighten the second locking nail 205 to fix the upper module 301 on the bottom of the lifting plate 103, and then slide the lower template 303 into the limiting groove 104, and tighten the third locking nail 305 to fix the lower template 303 on the main body 101. During operation, the sheet is placed on the lower template 303, and the main body 101 supports the hydraulic cylinder 102 to push the lifting plate 103 up and down to apply a downward bending force. The downward bending force pushes the upper module 301 downward through the connecting frame 201 and the connecting seat 302, and cooperates with the forming groove 304 on the lower template 303 to bend the sheet.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal bending machine, comprising a main device for pressing down and bending, characterized in that: It also includes a transition device installed on the host device for transitional vertical connection, and a mold assembly for bending sheet metal forming is arranged below the transition device; The transition device comprises a connecting frame (201), a first slide groove (202) is arranged on the upper part of the connecting frame (201), a second slide groove (203) is arranged on the lower part of the connecting frame (201), a plurality of first locking nails (204) are evenly distributed on the top of the connecting frame (201), and a plurality of second locking nails (205) are evenly distributed on the bottom of the connecting frame (201); The mold assembly comprises an upper module (301), a connecting seat (302) is arranged at the top of the upper module (301), a lower template (303) is arranged below the upper module (301), a molding groove (304) is arranged in the middle of the lower template (303), and a plurality of third locking pins (305) are evenly distributed on the lower template (303).

2. A sheet metal bending machine according to claim 1, characterized in that: The main machine device comprises a main machine body (101), two hydraulic cylinders (102) are symmetrically mounted on the top of the main machine body (101), a lifting plate (103) is mounted between the telescopic ends of the hydraulic cylinders (102), and a limiting groove (104) is arranged in the middle of the main machine body (101).

3. A sheet metal bending machine according to claim 2, characterized in that: The hydraulic cylinder (102) is respectively connected to the main body (101) and the lifting plate (103) by bolts.

4. A sheet metal bending machine according to claim 1, characterized in that: The connecting frame (201) is made of 45 steel material, and the first locking nail (204) and the second locking nail (205) are respectively threadedly connected to the connecting frame (201).

5. A sheet metal bending machine according to claim 1, characterized in that: The connection seat (302) and the upper module (301) are integrally formed, and the connection seat (302) and the connection frame (201) are connected by sliding insertion.

6. A sheet metal bending machine according to claim 2, characterized in that: The lower template (303) and the main body (101) are connected by sliding insertion.

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