Numerical control bending machine with guiding function

Abstract

The utility model provides a numerical control bending machine with a guiding function, and relates to the technical field of bending machines, the numerical control bending machine comprises a base, a bending lower template and a bending upper template, the upper end face of the base is provided with a lower backing plate, the bending lower template is assembled on the lower backing plate, the left end and the right end of the upper end face of the base are both fixedly provided with side fixing plates, and the side fixing plates are arranged on the base. The upper end of the side fixing plate is fixed below a top plate, a telescopic air cylinder is arranged in the top plate in a sleeved mode, the lower end of the telescopic air cylinder is fixed to the middle of the upper end face of an upper base plate, an upper bending die plate is assembled below the upper base plate, and the upper bending die plate and a lower bending die plate are arranged in an up-down matched mode. A lower positioning head is arranged in the middle of the lower base plate, and guide rods are arranged on the left and right portions of the upper end face of the lower base plate. The bending upper die plate and the bending lower die plate are vertically aligned, assembly or replacement is convenient, the lifting direction is straight, the bending quality of metal plates is guaranteed, and bending is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a CNC bending machine with a guide. Background Art

[0002] Bending - Under the pressure of the upper or lower die of the bending machine, the metal sheet first undergoes elastic deformation and then enters plastic deformation. At the beginning of plastic bending, the sheet is free to bend. 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 become smaller. 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] In the manual of an automated sheet metal bending machine in the prior art (publication number CN210966480U), it is mentioned that "a driving wheel is fixedly installed on the power output end of the driving motor, a rotating rod is fixedly installed inside the upper cross plate, a driven wheel is fixedly installed on the surface of the rotating rod, a rotating shaft is movably connected to the opposite side of the support column, an eccentric wheel is fixedly installed at the opposite end of the rotating shaft, a connecting rod is movably connected to the opposite side of the eccentric wheel, a fixed plate is fixedly installed at the bottom of the connecting rod, and a bending tool is fixedly installed at the bottom of the fixed plate". However, the bending machine in the prior art is also provided with a bending groove that matches the bending tool, which makes the bending easy to be skewed, and the sheet metal bending is not accurate and reliable. Utility Model Content

[0004] In order to overcome the defects of the prior art, a CNC bending machine with a guide is provided to solve the problem that the bending machine in the prior art is provided with a bending groove matched with a bending tool, which causes the bending to be easily skewed and the sheet metal bending is not accurate and reliable.

[0005] To achieve the above-mentioned purpose, a CNC bending machine with a guide is provided, comprising a base, a bending lower template and a bending upper template, the upper end surface of the base is provided with a lower pad, and the bending lower template is assembled on the lower pad, side fixing plates are fixed at both ends of the upper end surface of the base, and the upper ends of the side fixing plates are fixed under the top plate, a telescopic cylinder is sleeved in the top plate, and the lower end of the telescopic cylinder is fixed to the middle part of the upper end surface of the upper pad, an upper bending template is assembled under the upper pad, and the upper bending template and the lower bending template are matched with each other up and down.

[0006] Furthermore, a lower positioning head is provided in the middle of the lower pad, and guide rods are provided on both the left and right parts of the upper end surface of the lower pad.

[0007] Furthermore, a lower embedding opening is provided in the middle of the lower portion of the bending lower template, and the lower positioning head is embedded in the lower embedding opening, and bending grooves are provided on both sides of the upper embedding portion of the bending lower template.

[0008] Furthermore, bending heads are provided on both the front and rear sides of the lower part of the upper bending template, an upper embedding opening is provided in the middle of the upper part of the upper bending template, and a plurality of groups of threaded rods are provided at the inner bottom of the upper embedding opening.

[0009] Furthermore, guide sleeves are provided on both the left and right parts of the upper pad, and the guide sleeves are sleeved on the corresponding guide rods on the same side. An upper insert is provided in the middle part of the upper pad, and the upper insert is embedded in the upper embedding opening, and the upper insert is sleeved outside the threaded rod, and a fastening nut is threadedly installed on the threaded rod.

[0010] Furthermore, the lower bending template and the lower pad, as well as the upper pad and the upper bending template are separately connected, and the upper pad and the upper bending template can be lifted and lowered in the vertical direction.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model is convenient for assembling or disassembling the bending lower template and the lower pad, and the guide rod arranged on the upper end surface of the lower pad serves the purpose of straight positioning, so that the bending upper template is pressed on the bending lower template and aligned up and down, which is accurate and reliable, so as to ensure the quality of the bending of the sheet metal workpiece.

[0013] 2. In the utility model, the upper bending template can be lifted and lowered in the vertical direction, so that the bending head can be correspondingly embedded in the bending groove below to bend the sheet metal workpiece, and the bending is faster and more stable.

[0014] 3. The utility model adopts a chimeric assembly between the upper bending template and the upper pad, which is not only convenient for quick assembly, but also easy for disassembly and replacement, which is more convenient and saves trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a cross-sectional view of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the bending upper template of the embodiment of the utility model being pressed into the bending lower template;

[0018] Figure 4 This is a schematic diagram of the bending upper template structure of an embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the bending lower template structure of an embodiment of the utility model;

[0020] Figure 6 A schematic diagram of a bottom pad of an embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of an upper pad according to an embodiment of the utility model.

[0022] In the figure: 1, base; 10, side fixing plate; 11, top plate; 12, telescopic cylinder; 2, lower pad; 20, lower positioning head; 21, guide rod; 3, bending lower template; 30, lower embedding; 31, bending groove; 4, bending upper template; 40, bending head; 41, upper embedding; 42, fastening nut; 43, threaded rod; 5, upper pad; 50, guide sleeve; 51, upper embedded plate. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0024] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0025] Figure 1 It is a front view schematic diagram of an embodiment of the utility model, Figure 2 This is a cross-sectional view of an embodiment of the present invention. Figure 3 This is a schematic diagram of the bending upper template of the utility model embodiment being pressed into the bending lower template, Figure 4 The schematic diagram of the bending upper template structure of the utility model embodiment is as follows: Figure 5 The schematic diagram of the bending lower template structure of the utility model embodiment is as follows: Figure 6 Schematic diagram of the upper pad of the utility model embodiment and Figure 7 Schematic diagram of the bottom plate of the utility model embodiment.

[0026] Reference Figures 1 to 7As shown, the utility model provides a CNC bending machine with a guide, including a base 1, a bending lower template 3 and a bending upper template 4. The upper end surface of the base 1 is provided with a lower pad 2, and the bending lower template 3 is assembled on the lower pad 2. Side fixing plates 10 are fixed to both left and right ends of the upper end surface of the base 1, and the upper end of the side fixing plate 10 is fixed under the top plate 11. A telescopic cylinder 12 is sleeved in the top plate 11, and the lower end of the telescopic cylinder 12 is fixed to the middle of the upper end surface of the upper pad 5. The upper bending template 4 is assembled under the upper pad 5, and the upper bending template 4 and the lower bending template 3 are arranged in coordination with each other.

[0027] In this embodiment, a lower positioning head 20 is provided in the middle of the lower pad 2, and guide rods 21 are provided on the left and right parts of the upper end surface of the lower pad 2; a lower embedding opening 30 is opened in the middle of the lower part of the bending lower template 3, and the lower positioning head 20 is embedded in the lower embedding opening 30, and bending grooves 31 are provided on both sides of the upper embedding of the bending lower template 3.

[0028] As a preferred embodiment, the utility model is convenient for assembling or disassembling the bending lower template 3 and the lower pad 2, and the guide rod 21 arranged on the upper end surface of the lower pad 2 serves the purpose of straight positioning, so that the bending upper template 4 is pressed on the bending lower template 3 and aligned up and down, which is accurate and reliable to ensure the quality of the bending of the sheet metal workpiece.

[0029] In this embodiment, bending heads 40 are provided on both the front and rear sides of the lower part of the upper bending template 4, and an upper inserting opening 41 is opened in the middle of the upper part of the upper bending template 4, and multiple sets of threaded rods 43 are provided at the inner bottom of the upper inserting opening 41.

[0030] As a preferred embodiment, the bending upper template 4 in the utility model can be lifted and lowered in the vertical direction, so that the bending head 40 can be correspondingly embedded in the bending groove 31 below to bend the sheet metal workpiece, making the bending faster and more stable.

[0031] In this embodiment, an upper panel 51 is provided in the middle of the upper pad 5, the upper panel 51 is embedded in the upper embedding opening 41, and the upper panel 51 is sleeved outside the threaded rod 43, and a fastening nut 42 is threadedly installed on the threaded rod 43; the bending lower template 3 and the lower pad 2, the upper pad 5 and the bending upper template 4 are all split and connected, and the upper pad 5 and the bending upper template 4 can be lifted and lowered in the vertical direction.

[0032] As a preferred implementation, the utility model performs a chimeric assembly between the upper bending template 4 and the upper pad 5, which is not only convenient for quick assembly, but also easy for disassembly and replacement, which is more convenient and saves trouble.

[0033] The utility model can effectively solve the problem that the bending machine in the prior art is provided with a bending groove matched with a bending tool, which causes bending to be skewed easily and the sheet metal bending is not accurate and reliable. The bending upper template and the bending lower template provided in the utility model are aligned up and down, which is convenient for assembly or replacement, and the lifting direction is straight to ensure the bending quality of the sheet metal and accurate and reliable bending.

[0034] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A CNC bending machine with a guide, characterized in that: The invention comprises a base (1), a bending lower template (3) and a bending upper template (4); the upper end surface of the base (1) is provided with a lower pad (2), and the bending lower template (3) is assembled on the lower pad (2); side fixing plates (10) are fixed at both left and right ends of the upper end surface of the base (1), and the upper ends of the side fixing plates (10) are fixed under a top plate (11); a telescopic cylinder (12) is sleeved in the top plate (11), and the lower end of the telescopic cylinder (12) is fixed to the middle part of the upper end surface of the upper pad (5); the bending upper template (4) is assembled under the upper pad (5), and the bending upper template (4) and the bending lower template (3) are arranged in a coordinated manner up and down.

2. A guided CNC bending machine according to claim 1, characterized in that: A lower positioning head (20) is provided in the middle of the lower pad (2), and guide rods (21) are provided on both the left and right parts of the upper end surface of the lower pad (2).

3. A guided CNC bending machine according to claim 1, characterized in that: A lower embedding opening (30) is provided in the middle of the lower portion of the bending lower template (3), and the lower positioning head (20) is embedded in the lower embedding opening (30), and bending grooves (31) are provided on both sides of the upper embedding portion of the bending lower template (3).

4. A guided CNC bending machine according to claim 1, characterized in that: Bending heads (40) are provided on both the front and rear sides of the lower part of the bending upper template (4), an upper inserting opening (41) is provided in the middle of the upper part of the bending upper template (4), and a plurality of groups of threaded rods (43) are provided at the inner bottom of the upper inserting opening (41).

5. The guided CNC bending machine according to claim 1, characterized in that: The left and right parts of the upper pad (5) are both provided with guide sleeves (50), which are sleeved on the corresponding guide rods (21) on the same side. The middle part of the upper pad (5) is provided with an upper insert plate (51), which is embedded in the upper insert opening (41) and sleeved outside the threaded rod (43), and a fastening nut (42) is installed on the threaded rod (43) through a thread.

6. A guided CNC bending machine according to claim 1, characterized in that: The lower bending template (3) and the lower pad (2), as well as the upper pad (5) and the upper bending template (4) are all separately connected, and the upper pad (5) and the upper bending template (4) are movable in a vertical direction.

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