A bending center local tool setting auxiliary mechanism

Abstract

The application discloses a kind of partial tool auxiliary mechanism of bending center, including U-shaped tool rest, the U-shaped tool rest upper and lower end are correspondingly provided with bending tool, the rear side of bending tool located below is equipped with sub-tool connecting plate, and the sub-tool connecting plate is equipped with bending sub-tool for partial tool, sub-tool connecting plate can be moved on U-shaped tool rest, and independently provided with driving mechanism;Bending sub-tool can also be moved on sub-tool connecting plate, bending sub-tool is also provided with independent driving mechanism;Bending sub-tool is corresponded with the position of bending tool below, and the bending part of bending tool end is correspondingly embedded in bending sub-tool.This application can provide the purpose of rigid support by bending tool and sub-tool connecting plate, effectively improve the stability of overall device, and after local bending is completed, bending tool, bending sub-tool and sub-tool connecting plate can also be reset by spring compression assembly, and the overall structure is very reasonable and ingenious.

Description

Technical Field

[0001] This invention relates to the field of bending blade technology, specifically to a bending center local blade assembly auxiliary mechanism. Background Technology

[0002] In existing technologies, during the specific bending process of sheet metal, there may be interference problems between the local dimensions of the upper and lower bends. Traditional bending machines can effectively avoid this by manually changing the tool. However, the flexible CNC bending center adopts the method of adding a secondary tool unit with automatic tool alignment controlled by the system to achieve local bending.

[0003] For example, the technical solution disclosed in Publication (Announcement) No. CN113560387A is "a double lower bending knife mechanism for a bending machine". In this technical solution, a double lower bending knife is set above the lower bending knife to realize the use when the lower bending knife is inconvenient to bend.

[0004] However, in actual use, the lack of rigid support in the upper part of the bending cutter can cause insufficient rigidity of the secondary cutter during bending, resulting in malfunctions and problems.

[0005] Therefore, in order to solve the above problems, it is necessary to develop a locally aligning tool auxiliary mechanism at the bending center with a reasonable structure that can improve rigid support. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a localized tool-joining auxiliary mechanism for bending centers; the technical solution is as follows: A bending center partial blade-joining auxiliary mechanism includes a U-shaped blade holder, with bending blades correspondingly arranged at both the upper and lower ends of the U-shaped blade holder. A secondary blade connecting plate is installed on the rear side of the lower bending blade, and a bending secondary blade for partial blade-joining is installed on the secondary blade connecting plate. The secondary blade connecting plate can move on the U-shaped blade holder and is provided with an independent drive mechanism. The bending secondary blade can also move on the secondary blade connecting plate and is also provided with an independent drive mechanism. The bending secondary blade is positioned corresponding to the lower bending blade, and the bent portion at the end of the lower bending blade is correspondingly embedded in the bending secondary blade. There are gaps between the bending blade and the bending auxiliary blade, and between the bending auxiliary blade and the auxiliary blade connecting plate. The bending auxiliary blade is also equipped with a spring clamping assembly. One end of the spring clamping assembly is pressed against the bending blade, and the other end is pressed against the auxiliary blade connecting plate. The clamping force of the spring clamping assembly is set accordingly, so that both ends are in a floating and pre-pressed state, so that the bending auxiliary blade can move on the auxiliary blade connecting plate under the action of the driving mechanism, and also move relative to the bending blade. When the bending sub-blade moves into place, during partial bending, the sub-bending part at the end of the bending sub-blade is pressed down, which in turn presses down on the bending blade and the spring clamping assembly, causing the sub-bending blade to press against the sub-blade connecting plate, while the bending blade is pressed against the sub-bending blade, so that the surfaces at the gaps are correspondingly fitted, so that both the bending blade and the sub-blade connecting plate provide support for the bending sub-blade, while the spring clamping assembly is pressed down. Once the bending is complete, the bending sub-blade loses its clamping force, and the spring-loaded assembly pushes the bending sub-blade, the sub-blade connecting plate, and the bending blade apart, so the movement of the bending sub-blade is unaffected.

[0007] Furthermore, the bending sub-blade is provided with an oblique mounting hole, and the spring clamping assembly is correspondingly disposed in the mounting hole; the spring clamping assembly includes a bolt and a sleeve shaft installed integrally with the bolt; A ring-shaped limiting ring is provided at the middle position of the sleeve shaft, and spring members are provided on both the upper and lower sides of the limiting ring and fitted on the sleeve shaft. The upper spring member is pressed against the bolt, so that the bolt presses upward against the bending knife. A spring groove is provided at the lower end of the mounting hole, and the spring member on the lower side of the sleeve shaft is correspondingly set in the spring groove, so that the lower end of the sleeve shaft extends out from the mounting hole and presses against the auxiliary knife connecting plate.

[0008] Furthermore, the front side of the bending sub-blade is provided with a blade groove adapted to the shape of the bending portion of the bending blade; the bending portion of the bending blade is correspondingly disposed within the blade groove. Furthermore, the U-shaped tool holder is provided with a linear guide, and the secondary tool connecting plate is correspondingly embedded on the linear guide; the bottom of the bending secondary tool is provided with a track groove, and it is correspondingly embedded on the secondary tool connecting plate through the track groove.

[0009] Furthermore, the moving mechanism of the auxiliary blade connecting plate and the bending auxiliary blade both include a motor mounting base and a geared motor mounted on the motor mounting base; and corresponding geared motors are provided on both the left and right sides of the U-shaped blade holder, and a synchronous belt is installed between the corresponding geared motors on both sides through pulleys, and belt clamps are provided on both synchronous belts, which are respectively connected to the auxiliary blade connecting plate and the bending auxiliary blade through the two belt clamps, so that the movement of the synchronous belt drives the auxiliary blade connecting plate and the bending auxiliary blade to move.

[0010] Furthermore, the gauge is also equipped with stops.

[0011] Beneficial Effects: The present invention has the following beneficial effects: By setting the positional relationship between the bending blade, the secondary bending blade, and the secondary blade connecting plate, and by setting a spring clamping assembly inside the secondary bending blade, the present invention achieves the purpose of providing rigid support through the bending blade and the secondary blade connecting plate when the secondary bending blade is partially bent, effectively improving the stability of the overall device. Moreover, after the partial bending is completed, the bending blade, the secondary bending blade, and the secondary blade connecting plate can also be reset through the spring clamping assembly. The overall structure is very reasonable and ingenious, with better rigidity during the bending process and smoother partial bending. Attached Figure Description

[0012] Figure 1 This is a diagram showing the position of the present invention on the U-shaped tool holder; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a diagram showing the positional relationship between the bending blade, the secondary bending blade, and the secondary blade connecting plate in this invention. Figure 4 This is a structural diagram of the spring clamping assembly in this invention. Detailed Implementation

[0013] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0014] like Figures 1 to 4 As shown, a bending center partial blade-joining auxiliary mechanism includes a U-shaped blade holder 2, with bending blades 4 correspondingly arranged at both the upper and lower ends of the U-shaped blade holder 2. A secondary blade connecting plate 3 is installed on the rear side of the lower bending blade 4, and a bending secondary blade 5 for partial blade-joining is installed on the secondary blade connecting plate 3. The secondary blade connecting plate 3 can move on the U-shaped blade holder 2 and is provided with an independent driving mechanism. The bending secondary blade 5 can also move on the secondary blade connecting plate 3, and the bending secondary blade 5 is also provided with an independent driving mechanism. The bending secondary blade 5 corresponds to the lower bending blade 4 in position, and the bending part 41 at the end of the bending blade 4 is correspondingly embedded in the bending secondary blade 5. A gap 101 is provided between the bending blade 4 and the bending auxiliary blade 5, and between the bending auxiliary blade 5 and the auxiliary blade connecting plate 3. A spring clamping assembly is also provided inside the bending auxiliary blade 5. One end of the spring clamping assembly is pressed against the bending blade 4, and the other end is pressed against the auxiliary blade connecting plate 3. The clamping force of the spring clamping assembly is set accordingly, so that both ends are in a floating and pre-pressed state, so that the bending auxiliary blade 5 can move on the auxiliary blade connecting plate 3 under the action of the driving mechanism, and also move relative to the bending blade 4. When the bending sub-blade 5 moves into place, during partial bending, the sub-bending part 58 at the end of the bending sub-blade 5 is pressed down, which in turn presses down the bending blade 4 and the spring clamping assembly, so that the sub-bending blade 4 is pressed against the sub-blade connecting plate 3, and the bending blade 4 is pressed against the sub-bending blade 4, so that the faces at the gap 101 are correspondingly fitted, so that both the bending blade 4 and the sub-blade connecting plate 3 provide support for the bending sub-blade 5, and the spring clamping assembly is pressed down at the same time. After bending is completed, the bending sub-blade 5 loses its clamping force, and the spring-loaded assembly pushes the bending sub-blade 5 away from the sub-blade connecting plate 3 and the bending blade 4, so that the movement of the bending sub-blade 5 is not affected.

[0015] The bending sub-blade 5 is provided with an oblique mounting hole 51, and the spring clamping assembly is correspondingly installed in the mounting hole 51; the spring clamping assembly includes a bolt 52 and a sleeve 53 that is installed integrally with the bolt 52; A ring-shaped limiting ring 54 is provided at the middle position of the sleeve shaft 53, and spring members 55 are provided on the upper and lower sides of the limiting ring 54 and fitted on the sleeve shaft 53. The upper spring member 55 is tightened on the bolt 52, so that the bolt 52 pushes upward against the bending knife 4. A spring groove 56 is provided at the lower end of the mounting hole 51, and the spring member 55 on the lower side of the sleeve shaft 53 is correspondingly set in the spring groove 56, so that the lower end of the sleeve shaft 53 extends out from the mounting hole 51 and pushes against the auxiliary knife connecting plate 3.

[0016] The front side of the bending sub-blade 5 is provided with a blade groove 57 that matches the shape of the bending portion 41 of the bending blade 4; the bending portion 41 of the bending blade 4 is correspondingly disposed in the blade groove 57. The U-shaped tool holder 2 is equipped with a linear guide 21, and the secondary tool connecting plate 3 is correspondingly embedded in the linear guide 21; the bottom of the bending secondary tool 5 is equipped with a track groove 59, and it is correspondingly embedded in the secondary tool connecting plate 3 through the track groove 59.

[0017] The moving mechanisms of the auxiliary blade connecting plate 3 and the bending auxiliary blade 5 both include a motor mounting base 9 and a reduction motor 10 mounted on the motor mounting base 9; and corresponding reduction motors 10 are provided on both the left and right sides of the U-shaped blade holder 2. A synchronous belt 8 is mounted between the corresponding reduction motors 10 on both sides through a pulley 1, and belt clamps 6 are provided on both synchronous belts 8. The two belt clamps 6 are connected to the auxiliary blade connecting plate 3 and the bending auxiliary blade 5 respectively, so that the movement of the synchronous belt 8 drives the auxiliary blade connecting plate 3 and the bending auxiliary blade 5 to move; a stop block 7 is also provided on the wire gauge 21.

[0018] The specific working principle of this invention is as follows: When partial bending is required, the auxiliary blade connecting plate and the auxiliary bending blade are moved simultaneously by the moving mechanism. The auxiliary blade connecting plate is moved to the approximate position, and then moved to the specific bending position by the moving mechanism of the auxiliary bending blade. Both are moved by a speed reduction motor driving a synchronous belt, which in turn drives the auxiliary blade connecting plate and the auxiliary bending blade to move. The specific moving method of the moving mechanism can be referred to the technical content disclosed in the publication (announcement) number: CN113560387A.

[0019] Furthermore, during the movement, the bending sub-blade is equipped with a spring-loaded clamping assembly inside. Under the action of the spring, the upper bolt pushes out and presses against the bending blade, while the lower end of the sleeve pushes out and presses against the sub-blade connecting plate. However, the clamping force of the spring is set accordingly, so that the three are in a floating, pre-compressed state, thus not affecting their mutual movement. And since the three need to move towards each other, there is a certain gap between them. At the same time, in order to keep the spring-loaded clamping assembly in a pre-compressed state, there is a certain gap between them.

[0020] And as Figure 3 As shown, the bending blade, the secondary bending blade, and the secondary blade connecting plate are interlocked. The secondary bending blade is mounted on the secondary blade connecting plate via a track groove and can move accordingly. The bending part at the upper end of the bending blade is correspondingly set in the blade groove of the secondary bending blade. The three are installed correspondingly to each other, and there is a certain gap between them to avoid hindering movement.

[0021] When the bending sub-blade moves into place and bending occurs, the upper end of the bending sub-blade is subjected to pressure, pressing down on the bending blade and the sub-blade connecting plate. This squeezes out the gap between the bending blade and the sub-blade connecting plate. Both the bending blade and the sub-blade connecting plate push upwards against the bending sub-blade to support it, providing rigid support and increasing overall stability and rigidity. At the same time, the spring clamping assembly is correspondingly pressed.

[0022] When the pressure on the bending secondary blade is removed, the bending blade is pushed open and reset under the action of the spring clamping assembly. The bending secondary blade and the secondary blade connecting plate are also pushed open and reset accordingly, without affecting the relative movement of the three, thus completing the overall process of partial bending.

[0023] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the implementation of the present invention or the scope of the claims. All equivalent changes and modifications made in accordance with the scope of patent protection of the present invention should be included within the scope of the present invention patent application.

Claims

1. A bending center local blade-jointing auxiliary mechanism, comprising a U-shaped blade holder (2), wherein bending blades (4) are correspondingly arranged at both the upper and lower ends of the U-shaped blade holder (2), characterized in that: A secondary blade connecting plate (3) is installed on the rear side of the lower bending blade (4), and a bending secondary blade (5) for partial blade splicing is installed on the secondary blade connecting plate (3). The secondary blade connecting plate (3) can move on the U-shaped blade holder (2) and is provided with an independent drive mechanism. The bending secondary blade (5) can also move on the secondary blade connecting plate (3), and the bending secondary blade (5) is also provided with an independent drive mechanism. The bending secondary blade (5) corresponds to the lower bending blade (4), and the bending part (41) at the end of the bending blade (4) is correspondingly embedded in the bending secondary blade (5). A gap (101) is provided between the bending blade (4) and the bending auxiliary blade (5), and between the bending auxiliary blade (5) and the auxiliary blade connecting plate (3). A spring clamping assembly is also provided inside the bending auxiliary blade (5). One end of the spring clamping assembly is pressed against the bending blade (4), and the other end is pressed against the auxiliary blade connecting plate (3). The clamping force of the spring clamping assembly is set accordingly, so that both ends are in a floating and pre-pressed state, so that the bending auxiliary blade (5) can move on the auxiliary blade connecting plate (3) under the action of the driving mechanism, and also move relative to the bending blade (4). When the bending sub-blade (5) moves into place, when the bending sub-blade (5) performs a partial bend, the sub-bending part (58) at the end of the bending sub-blade (5) is pressed down, and the bending blade (4) and the spring pressing assembly are pressed down, so that the sub-bending blade (4) is pressed on the sub-blade connecting plate (3), and the bending blade (4) is pressed on the sub-bending blade (4), so that the faces at the gap (101) are correspondingly fitted, so that the bending blade (4) and the sub-blade connecting plate (3) both support the bending sub-blade (5), and the spring pressing assembly is pressed down at the same time; After bending is completed, the bending sub-blade (5) loses its clamping force, and the spring clamping assembly pushes the bending sub-blade (5) away from the sub-blade connecting plate (3) and the bending blade (4), and the movement of the bending sub-blade (5) is not affected.

2. The bending center local blade-jointing auxiliary mechanism according to claim 1, characterized in that: The bending sub-blade (5) is provided with an oblique mounting hole (51), and the spring clamping assembly is correspondingly provided in the mounting hole (51); the spring clamping assembly includes a bolt (52) and a sleeve shaft (53) installed integrally with the bolt (52). A ring-shaped limiting ring (54) is provided at the middle position of the sleeve shaft (53), and spring members (55) are provided on the upper and lower sides of the limiting ring (54) and fitted on the sleeve shaft (53). The upper spring member (55) is pressed against the bolt (52) so that the bolt (52) presses upward against the bending knife (4); a spring groove (56) is provided at the lower end of the mounting hole (51), and the spring member (55) on the lower side of the sleeve shaft (53) is correspondingly set in the spring groove (56) so that the lower end of the sleeve shaft (53) extends out from the mounting hole (51) and presses against the auxiliary knife connecting plate (3).

3. The bending center local blade-jointing auxiliary mechanism according to claim 1, characterized in that: The front side of the bending sub-blade (5) is provided with a blade groove (57) that matches the shape of the bending part (41) of the bending blade (4); the bending part (41) of the bending blade (4) is correspondingly disposed in the blade groove (57).

4. The bending center local blade-jointing auxiliary mechanism according to claim 1, characterized in that: The U-shaped tool holder (2) is provided with a linear guide (21), and the auxiliary tool connecting plate (3) is correspondingly embedded on the linear guide (21); the bottom of the bending auxiliary tool (5) is provided with a track groove, and is correspondingly embedded on the auxiliary tool connecting plate (3) through the track groove.

5. The bending center local blade-jointing auxiliary mechanism according to claim 4, characterized in that: The moving mechanism of the auxiliary blade connecting plate (3) and the bending auxiliary blade (5) both include a motor mounting base (9) and a geared motor (10) mounted on the motor mounting base (9); and corresponding geared motors (10) are provided on both the left and right sides of the U-shaped blade holder (2). A synchronous belt (8) is installed between the corresponding geared motors (10) on both sides through a pulley (1), and belt clips (6) are provided on both synchronous belts (8). The two belt clips (6) are connected to the auxiliary blade connecting plate (3) and the bending auxiliary blade (5) respectively through the two belt clips (6), so that the auxiliary blade connecting plate (3) and the bending auxiliary blade (5) can be moved by the movement of the synchronous belt (8).

6. The bending center local blade-jointing auxiliary mechanism according to claim 4, characterized in that: The linear guide (21) is also provided with a stop (7).

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