Metal plate bending machine

Abstract

The utility model relates to the field of sheet metal machining, in particular to a sheet metal bending machine which comprises a bending machine body, the bending machine body comprises a bending cutter mounting frame and a limiting mounting frame, a cutter changing mechanism is mounted at one side end of the limiting mounting frame and comprises a storage sleeve, a supporting frame and an auxiliary roller, a sliding groove is formed in the position, located in the storage sleeve, of the outer side of the supporting frame, and the auxiliary roller is arranged in the sliding groove. Springs are installed in the sliding grooves, rotating shafts are installed between the auxiliary rolling wheels and the supporting frames, side rolling wheels are connected to the positions, located on the outer sides of the supporting frames, of the outer side ends of the rotating shafts, positioning bolts are installed on the outer sides of the supporting frames, and threaded holes are formed in the positions, located in the supporting frames, of the outer sides of the positioning bolts. After torsion is applied to a positioning bolt, limiting of a supporting frame in a storage sleeve is disconnected, an auxiliary rolling wheel and a side rolling wheel at the end of the supporting frame are controlled to be integrally and correspondingly fixed on the upper surface of a limiting mounting frame, and the lower bending knife can be used for supporting operation when being mounted.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal processing, in particular to a sheet metal bending machine. Background Art

[0002] A bending machine is a machine that can bend thin plates. Bending is the process in which a metal sheet first undergoes elastic deformation and then plastic deformation under the pressure of the upper or lower die of the bending machine. At the beginning of plastic bending, the sheet is freely bent. As the upper or lower die applies pressure to the sheet, the sheet and the inner surface of the V-groove of the lower die gradually come close to each other. At the same time, the radius of curvature and the bending force arm also gradually decrease. Continue to apply pressure until the stroke ends, so that the upper and lower dies are in full contact with the sheet at three points. At this time, a V-shaped bend is completed, which is commonly known as bending.

[0003] However, when the lower tool of the bending machine is replaced, due to its heavy weight, when the lower tool is docked during replacement, the hand supporting one end of the tool may easily cause the other end to fall and cause danger. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sheet metal bending machine to solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a sheet metal bending machine, comprising a bending machine, the bending machine comprising: a bending knife mounting frame, a limiting mounting frame, a tool changing mechanism is installed on one side end of the limiting mounting frame, the tool changing mechanism comprises: a storage sleeve, a support frame, and an auxiliary roller, the outer side of the support frame is located in the storage sleeve and a slide groove is opened inside, a spring is installed inside the slide groove, a rotating shaft is installed between the auxiliary roller and the support frame, the outer end of the rotating shaft is located on the outer side of the support frame and is connected to a side roller, a positioning bolt is installed on the outer side of the support frame, and the outer side of the positioning bolt is located in the support frame and a threaded hole is opened inside.

[0006] As a further solution of the utility model: a hydraulic mechanism is installed above the bending knife mounting frame, a lower bending knife is arranged above the limiting mounting frame, and an upper bending knife is arranged below the bending knife mounting frame.

[0007] As a further solution of the utility model: an adjusting knob is installed inside the limit mounting frame below the lower bending knife, and a sheet metal support frame is installed at one end of the adjusting knob.

[0008] As a further solution of the utility model: the auxiliary roller and the side roller are both rotatably connected to the support frame.

[0009] As a further solution of the utility model: the support frame is slidably connected to the slide groove.

[0010] As a further solution of the utility model: a hydraulic rod is connected between the hydraulic mechanism and the bending knife mounting frame, and the lower bending knife is clamped with the limiting mounting frame.

[0011] As a further solution of the utility model: a roller groove is provided on one side end of the side roller located on the outer side of the support frame.

[0012] As a further solution of the utility model: a screw rod is installed between the adjusting knob and the sheet metal support frame.

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

[0014] After applying torque to the positioning bolt and disconnecting the limit of the support frame inside the storage sleeve, the auxiliary roller and the side roller at the end of the support frame are controlled to be fixed as a whole on the upper surface of the limit mounting frame. When the lower bending knife is installed, it can be used for supporting operation to prevent the user's hand from losing strength and causing the tool to fall.

[0015] After one end of the lower bending knife is aligned with the upper position of the auxiliary roller and the side roller, the lower bending knife is pushed toward the position of the limit mounting frame by the support of the auxiliary roller and then installed as a whole, thereby improving the efficiency of tool replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sheet metal bending machine;

[0017] Figure 2 It is a structural schematic diagram of a tool changing mechanism in a sheet metal bending machine;

[0018] Figure 3 It is a structural schematic diagram of a support frame in a sheet metal bending machine;

[0019] Figure 4 A top view of a bending machine in a sheet metal bending machine;

[0020] Figure 5 It is a front view of a bending machine in a sheet metal bending machine.

[0021] In the figure: 1. bending machine; 2. bending knife mounting frame; 3. limit mounting frame; 4. lower bending knife; 5. hydraulic mechanism; 6. upper bending knife; 7. adjusting knob; 8. tool changing mechanism; 701. sheet metal support frame; 801. storage sleeve; 802. slide groove; 803. spring; 804. support frame; 805. positioning bolt; 806. auxiliary roller; 807. threaded hole; 808. side roller; 809. roller groove. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-5 As shown, the present embodiment provides a sheet metal bending machine, including a bending machine 1, the bending machine 1 includes: a bending knife mounting frame 2, a limiting mounting frame 3, a tool changing mechanism 8 is installed on one side end of the limiting mounting frame 3, and the tool changing mechanism 8 includes: a storage sleeve 801, a support frame 804, and an auxiliary roller 806. The outer side of the support frame 804 is located inside the storage sleeve 801 and a slide groove 802 is opened. The support frame 804 is slidably connected to the slide groove 802, and a spring 80 is installed inside the slide groove 802. 3. A rotating shaft is installed between the auxiliary roller 806 and the support frame 804. The outer end of the rotating shaft is located on the outer side of the support frame 804 and is connected to a side roller 808. The auxiliary roller 806 and the side roller 808 are both rotatably connected to the support frame 804. A positioning bolt 805 is installed on the outer side of the support frame 804. The outer side of the positioning bolt 805 is located inside the support frame 804 and has a threaded hole 807. One side end of the side roller 808 is located on the outer side of the support frame 804 and has a roller groove 809.

[0024] like Figure 2-5 As shown, in the present embodiment, a hydraulic mechanism 5 is installed above the bending knife mounting frame 2, a hydraulic rod is connected between the hydraulic mechanism 5 and the bending knife mounting frame 2, a lower bending knife 4 is arranged above the limiting mounting frame 3, the lower bending knife 4 is clamped with the limiting mounting frame 3, an upper bending knife 6 is arranged below the bending knife mounting frame 2, an adjusting knob 7 is installed inside the limiting mounting frame 3 below the lower bending knife 4, a sheet metal support frame 701 is installed at one end of the adjusting knob 7, and a screw rod is installed between the adjusting knob 7 and the sheet metal support frame 701.

[0025] The working principle of the utility model is as follows: when in use, after applying a torque to the positioning bolt 805, the support frame 804 is disconnected from the limit position inside the storage sleeve 801, and under the elastic restoring force of the spring 803 inside the slide groove 802, the support frame 804 is ejected from the inside of the storage sleeve 801 as a whole, and the auxiliary roller 806 and the side roller 808 at the end of the support frame 804 are controlled to correspond to the upper surface position of the limit mounting frame 3, and then the positioning bolt 805 is applied with a torque to fix the support frame 804 as a whole inside the storage sleeve 801, and then the lower bending knife 4 is moved as a whole. During installation, the lower bending knife 4 is moved as a whole to one end of the limit mounting frame 3, and after one end of the lower bending knife 4 is positioned above the auxiliary roller 806 and the side roller 808, the lower bending knife 4 is pushed toward the position of the limit mounting frame 3 under the support of the auxiliary roller 806 and then installed as a whole. When performing the bending operation, the plate is placed as a whole above the lower bending knife 4, so that one end of the plate corresponds to the position of the sheet metal support frame 701, and then the bending knife mounting frame 2 is driven as a whole by the hydraulic mechanism 5 to drive the upper bending knife 6 downward to bend the plate.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] 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 bending machine (1), characterized in that: The bending machine (1) comprises: a bending knife mounting frame (2), a limiting mounting frame (3), a tool changing mechanism (8) being mounted on one side end of the limiting mounting frame (3), the tool changing mechanism (8) comprising: a storage sleeve (801), a support frame (804), and an auxiliary roller (806), the outer side of the support frame (804) being located inside the storage sleeve (801) and having a slide groove (802), the interior of the slide groove (802) being installed with a spring (803), a rotating shaft being mounted between the auxiliary roller (806) and the support frame (804), the outer side end of the rotating shaft being located outside the support frame (804) and being connected with a side roller (808), a positioning bolt (805) being mounted on the outer side of the support frame (804), and a threaded hole (807) being located inside the support frame (804) and having a threaded hole (807) being mounted on the outer side of the positioning bolt (805).

2. A sheet metal bending machine according to claim 1, characterized in that: A hydraulic mechanism (5) is installed above the bending knife mounting frame (2), a lower bending knife (4) is arranged above the position limiting mounting frame (3), and an upper bending knife (6) is arranged below the bending knife mounting frame (2).

3. A sheet metal bending machine according to claim 2, characterized in that: An adjusting knob (7) is installed inside the position-limiting mounting frame (3) below the lower bending knife (4), and a sheet metal support frame (701) is installed at one end of the adjusting knob (7).

4. The sheet metal bending machine according to claim 1, characterized in that: The auxiliary roller (806) and the side roller (808) are both rotatably connected to the support frame (804).

5. The sheet metal bending machine according to claim 1, characterized in that: The support frame (804) is slidably connected to the slide groove (802).

6. The sheet metal bending machine according to claim 2, characterized in that: A hydraulic rod is connected between the hydraulic mechanism (5) and the bending knife mounting frame (2), and the lower bending knife (4) is clamped with the position limiting mounting frame (3).

7. The sheet metal bending machine according to claim 1, characterized in that: One side end of the side roller (808) is located outside the support frame (804) and is provided with a roller groove (809).

8. The sheet metal bending machine according to claim 3, characterized in that: A screw rod is installed between the adjusting knob (7) and the sheet metal support frame (701).

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