Metal plate positioning device for numerical control bending machine

Abstract

The utility model discloses a metal plate positioning device for a numerical control bending machine, which relates to the technical field of bending machines and comprises a first bending piece, a second bending piece and an electric push rod. The positioning and clamping mechanism comprises a plurality of guide rails, a plurality of first springs, two sliding blocks, a plurality of extrusion pieces, a plurality of fixing columns and a plurality of second springs. According to the technical scheme, the positioning and clamping mechanism is adopted, the sheet metal part is placed between the extrusion parts at the bottom of the first bending part, the sheet metal part is pressed downwards so that the extrusion parts and the sliding block can be pushed towards one side till the sheet metal part makes contact with the top face of the first bending part, at the moment, the sliding block is pushed by the first spring, and therefore the sheet metal part is bent. According to the bending device, the fixing column is arranged on the side wall of the sheet metal part, the extrusion part on the side wall of the fixing column is in close contact with one side of the sheet metal part, the extrusion part can be supported through the second spring, and the extrusion part can extrude, clamp and position the sheet metal part, so that positioning of the sheet metal part is more convenient, and bending machining is more efficient.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, and in particular to a sheet metal positioning device for CNC bending machines. Background Technology

[0002] A bending machine is a machine that can bend thin plates. CNC bending machines use equipped molds (general or special molds) to bend cold metal plates into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing and is widely used in sheet metal bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] Traditional CNC bending machines require adjusting positioning components to position and clamp sheet metal parts, which is inconvenient and slow, affecting work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sheet metal positioning device for CNC bending machines, so as to solve the problem that the prior art requires adjusting the positioning components to position and clamp the sheet metal parts when positioning them, which is not convenient and quick to use and affects work efficiency.

[0005] In view of this, the present invention provides a sheet metal positioning device for a CNC bending machine, including a first bending component and an electric push rod. The output end of the electric push rod is fixedly installed with a second bending component. The top of the first bending component is provided with a bending groove that matches the second bending component. The top of the first bending component is provided with a positioning clamping mechanism.

[0006] The positioning and clamping mechanism includes several guide rails, several first springs, two sliders, several extrusion members, several fixed posts, and several second springs. The top of the first bending member has two symmetrical sliding grooves. The guide rails are fixedly installed inside the sliding grooves. The sliders are slidably connected inside the sliding grooves. The first springs are installed on the side wall of the guide rails. The fixed posts are fixedly installed on the top of the sliders. The extrusion members are movably connected to the side wall of the fixed posts through the second springs.

[0007] Optionally, the slider is slidably connected to the side wall of the guide rail.

[0008] Optionally, one end of the first spring contacts the inner wall of the groove, and the other end of the first spring contacts one side of the slider.

[0009] Optionally, one end of the second spring is fixedly installed on the side wall of the fixed column, and the other end of the second spring is fixedly installed on the inner wall of the extruder.

[0010] Optionally, the extrusion member is a column with an arched cross-section.

[0011] Optionally, the sidewall of the extrusion piece is provided with a limiting mechanism.

[0012] Optionally, the limiting mechanism includes a third spring and a limiting member. The side wall of the extruder has an installation cavity. The limiting member is movably connected inside the installation cavity through the third spring. The limiting member is hemispherical, and a limiting groove is formed at the bottom end of the side wall of the limiting member.

[0013] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:

[0014] 1. This utility model discloses a sheet metal positioning device for a CNC bending machine, which adopts a positioning and clamping mechanism. When a sheet metal part needs to be bent, the sheet metal part is placed between the extrusion parts at the bottom of the first bending part. By pressing the sheet metal part downward, the extrusion parts and the slider can be pushed to one side until the sheet metal part contacts the top surface of the first bending part. At this time, the first spring pushes the slider, so that the extrusion part on the side wall of the fixed column is in close contact with one side of the sheet metal part. The second spring can support the extrusion part, so that the extrusion part can squeeze, clamp and position the sheet metal part, thereby making the positioning of the sheet metal part more convenient and the bending process more efficient.

[0015] 2. The sheet metal positioning device for a CNC bending machine of this utility model adopts a limiting part design. With this design, when the extruder clamps and positions the sheet metal part, the sheet metal part can be stuck in the limiting groove at the bottom of the side wall of the limiting part, thereby avoiding the phenomenon of warping of the sheet metal part during the bending process.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the extruded part and the fixing column of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the extruded part of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixed column distribution structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. First bending component; 2. Bending groove; 3. Electric push rod; 4. Second bending component; 5. Slide groove; 6. Guide rail; 7. First spring; 8. Slider; 9. Extrusion component; 10. Fixed column; 11. Limiting component; 12. Second spring; 13. Mounting cavity; 14. Third spring; 15. Limiting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0024] The following describes in detail, with reference to the accompanying drawings, a sheet metal positioning device for a CNC bending machine according to an embodiment of the present invention.

[0025] Example 1

[0026] For easier understanding, please refer to Figures 1 to 4 An embodiment of a sheet metal positioning device for a CNC bending machine provided by this utility model includes a first bending part 1 and an electric push rod 3. A second bending part 4 is fixedly installed at the output end of the electric push rod 3. A bending groove 2 matching the second bending part 4 is opened on the top of the first bending part 1. A positioning clamping mechanism is provided on the top of the first bending part 1.

[0027] The positioning and clamping mechanism includes several guide rails 6, several first springs 7, two sliders 8, several extrusion parts 9, several fixed posts 10, and several second springs 12. The top of the first bending part 1 has two symmetrical sliding grooves 5. The guide rails 6 are fixedly installed inside the sliding grooves 5. The sliders 8 are slidably connected inside the sliding grooves 5. The first springs 7 are installed on the side wall of the guide rails 6. The fixed posts 10 are fixedly installed on the top of the sliders 8. The extrusion parts 9 are movably connected to the side wall of the fixed posts 10 through the second springs 12.

[0028] It should be noted that the electric push rod 3 can drive the second bending member 4 to move up and down, the first bending member 1 can be used to place the sheet metal part to be bent, and the bending groove 2 can press the sheet metal part at the top of the first bending member 1 into the bending groove 2 when the second bending member 4 moves downward, thus bending the sheet metal part. The first spring 7 can push the slider 8 to one side, so that the slider 8 is located on one side of the slide groove 5. The fixing post 10 can limit the position of the extrusion member 9. When the sheet metal part needs to be bent... During bending, the sheet metal part is placed between the extrusion parts 9 at the bottom of the first bending part 1. By pressing the sheet metal part downward, the extrusion parts 9 and the slider 8 can be pushed to one side until the sheet metal part contacts the top surface of the first bending part 1. At this time, the first spring 7 pushes the slider 8, so that the extrusion parts 9 on the side wall of the fixed column 10 are in close contact with one side of the sheet metal part. The second spring 12 can support the extrusion parts 9, so that the extrusion parts 9 can squeeze, clamp and position the sheet metal part, which makes the positioning of the sheet metal part more convenient and the bending process more efficient.

[0029] In some embodiments, such as Figure 4 As shown, the slider 8 is slidably connected to the side wall of the guide rail 6, one end of the first spring 7 is in contact with the inner wall of the slide groove 5, and the other end of the first spring 7 is in contact with one side of the slider 8.

[0030] It should be noted that the direction of movement of the slider 8 can be limited by setting the guide rail 6, and the slider 8 can be supported by setting the first spring 7, so that the slider 8 can be pushed to one side.

[0031] In some embodiments, such as Figure 2 As shown, one end of the second spring 12 is fixedly installed on the side wall of the fixed column 10, and the other end of the second spring 12 is fixedly installed on the inner wall of the extrusion member 9, which is a column with an arched cross-section.

[0032] It should be noted that by setting the second spring 12, the extrusion part 9 can be supported, so that when the extrusion part 9 comes into contact with the sheet metal part, the supporting force of the second spring 12 can be used to extrude and clamp the sheet metal part.

[0033] Example 2

[0034] In some embodiments, such as Figure 2 As shown, the side wall of the extrusion part 9 is provided with a limiting mechanism, which includes a third spring 14 and a limiting member 11. The side wall of the extrusion part 9 is provided with an installation cavity 13. The limiting member 11 is movably connected to the inside of the installation cavity 13 through the third spring 14. The limiting member 11 is hemispherical, and a limiting groove 15 is provided at the bottom end of the side wall of the limiting member 11.

[0035] It should be noted that the third spring 14 can support the limiting member 11. When the extrusion member 9 clamps and positions the sheet metal part, the sheet metal part can be stuck in the limiting groove 15 at the bottom of the side wall of the limiting member 11, thereby preventing the sheet metal part from warping during bending.

[0036] The electric push rod 3 in this utility model is a known component and will not be described in detail here.

[0037] Working principle: When sheet metal parts need to be bent, the sheet metal parts are placed between the extrusion parts 9 at the bottom of the first bending part 1. By pressing the sheet metal parts downward, the extrusion parts 9 and the slider 8 can be pushed to one side until the sheet metal parts contact the top surface of the first bending part 1. At this time, the first spring 7 pushes the slider 8, so that the extrusion parts 9 on the side wall of the fixed column 10 are in close contact with one side of the sheet metal parts. The second spring 12 can support the extrusion parts 9, so that the extrusion parts 9 can squeeze, clamp and position the sheet metal parts. Then, the electric push rod 3 can drive the second bending part 4 to move downward. When the second bending part 4 moves downward, it can press the sheet metal parts at the top of the first bending part 1 into the bending groove 2, and perform bending processing on the sheet metal parts.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A sheet metal positioning device for a numerical control bending machine, characterized by: The utility model relates to a first bending piece (1) and electric push rod (3) are included, and the output end fixed mounting of electric push rod (3) has second bending piece (4), the top of first bending piece (1) is equipped with the bending groove (2) that matches with second bending piece (4), and the top of first bending piece (1) is provided with positioning and clamping mechanism; The positioning and clamping mechanism includes a plurality of guide rails (6), a plurality of first springs (7), two sliding blocks (8), a plurality of extrusion pieces (9), a plurality of fixed columns (10) and a plurality of second springs (12), the top of the first bending piece (1) is provided with two symmetrical sliding grooves (5), the guide rails (6) are fixedly installed inside the sliding grooves (5), the sliding blocks (8) are slidably connected inside the sliding grooves (5), the first springs (7) are installed on the side walls of the guide rails (6), the fixed columns (10) are fixedly installed on the top of the sliding blocks (8), and the extrusion pieces (9) are movably connected to the side walls of the fixed columns (10) through the second springs (12).

2. The sheet metal positioning device for a CNC press brake according to claim 1, wherein: The sliding blocks (8) are slidably connected to the side walls of the guide rails (6).

3. The sheet metal positioning device for a CNC press brake of claim 1, wherein: One end of the first spring (7) is in contact with the inner wall of the sliding groove (5), and the other end of the first spring (7) is in contact with one side of the sliding block (8).

4. The sheet metal positioning device for a CNC press brake of claim 1, wherein: One end of the second spring (12) is fixedly installed on the side wall of the fixed column (10), and the other end of the second spring (12) is fixedly installed on the inner wall of the extrusion piece (9).

5. The sheet metal positioning device for a CNC press brake of claim 1, wherein: The extrusion piece (9) is an arched column in cross section.

6. The sheet metal positioning device for a CNC press brake of claim 1, wherein: The side wall of the extrusion piece (9) is provided with a limiting mechanism.

7. The sheet metal positioning device for a CNC press brake of claim 6, wherein: The limiting mechanism includes a third spring (14) and a limiting piece (11), the side wall of the extrusion piece (9) is provided with a mounting cavity (13), the limiting piece (11) is movably connected to the inside of the mounting cavity (13) through the third spring (14), the limiting piece (11) is semispherical, and the side wall of the limiting piece (11) is provided with a limiting groove (15) at the bottom end.

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