Adjustable lower die for continuously bending sheet metal parts

Abstract

The utility model provides a sheet metal part continuous bending adjustable lower die which comprises a lower die adjusting seat, the two sides of the upper surface of the lower die adjusting seat are meshed with meshing heads integrally arranged below a bending seat, and a plurality of meshing grooves and a plurality of meshing heads are integrally arranged. The two bending bases are arranged in a mirror image mode, the bending bases and sliding blocks arranged below the bending bases are connected with the lower die adjusting base, and a bending roller is rotationally installed on the upper portion of the inner side of each bending base. A servo motor is mounted on the lower die adjusting seat; according to the utility model, the high-precision stable control of the two bending seats is realized, and the adjustment precision and stability are obviously improved. In order to prevent the threads from being damaged, the occlusion groove, the occlusion head, the air cylinder and other core assemblies are integrated, the bent base is tightly occluded in the occlusion groove through the occlusion head after adjustment, transverse displacement is effectively limited, and the threads are protected. The air cylinder drives the bending base to ascend, meshing is relieved, the position of the bending base is adjusted through transmission of the two-way screw, and flexible and accurate adjustment is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of bending die technology, and particularly relates to an adjustable lower die for continuous bending of sheet metal parts. Background Technology

[0002] Adjustable lower dies for continuous bending of sheet metal parts play a crucial role in the sheet metal processing field. Their design and manufacturing level directly affects the processing quality and production efficiency of sheet metal parts. Traditionally, in order to meet the bending requirements of sheet metal parts of different specifications, lower dies are generally designed to be adjustable. This feature is mainly achieved through a transmission mechanism equipped with a self-locking function, with threaded drives being a typical example.

[0003] However, facing increasing production demands, sheet metal parts undergo continuous and frequent bending operations during processing, posing a severe challenge to the transmission mechanism. Under continuous pressure, the transmission mechanism, especially the threaded transmission part, is prone to durability problems such as thread wear and damage. Over time, these problems will significantly affect the adjustment accuracy and overall service life of the equipment, thus adversely impacting production efficiency and cost control.

[0004] Therefore, it is essential to invent an adjustable lower die for continuous bending of sheet metal parts. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an adjustable lower die for continuous bending of sheet metal parts, including a lower die adjustment seat, a meshing groove, a bending seat, a meshing head, a slider, a bending roller, and a servo motor. The meshing heads, which are integrally formed with the lower bending seat and are formed on both sides of the upper surface of the lower die adjustment seat, engage with each other. Several meshing grooves and meshing heads are integrally formed and arranged laterally. Two bending seats are provided and arranged in a mirror image. The bending seats and the sliders located below them are connected to the lower die adjustment seat. A bending roller is rotatably mounted on the upper inner side of each bending seat. A servo motor is installed on the lower die adjustment seat.

[0006] Preferably, the lower mold adjusting seat includes a base body, a slide groove, and an adjusting groove. The base body has two symmetrical slide grooves mirror-imaged and a single adjusting groove. The adjusting groove is located between the two slide grooves. Each slide groove has two sliders slidably installed inside it. The slide groove allows the sliders to slide linearly and move up and down within it.

[0007] Preferably, a bidirectional screw is rotatably installed in the adjustment groove in the middle of the base body. The bidirectional screw has two helical sections with opposite directions of rotation, namely a left-handed helix and a right-handed helix. Each helix section is connected to a sliding block through a ball nut. Either end of the bidirectional screw rotates through the base body and is fixed to the output end of a servo motor that is fixedly installed outside the base body.

[0008] Preferably, there are two sliding blocks, both of which are slidably installed inside the lower part of the adjusting groove. A cylinder is fixedly installed above each sliding block, and the output end of each cylinder is fixed to the corresponding bending seat above it.

[0009] Preferably, the engagement heads provided on both sides below the bending seat are allowed to engage with the engagement grooves provided on the base body.

[0010] Preferably, the biting head has two mutually mirror-symmetrical inclined surfaces, and the cross-section of the biting head is an equilateral trapezoid. The biting head can move upward to break free from the restriction of the biting groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention ingeniously utilizes an innovative design of a servo motor driving a bidirectional screw, achieving high-precision and stable control of two bending seats. Compared to the traditional method of only driving a single lower die, its adjustment accuracy and stability are significantly improved. To effectively avoid thread damage, this design creatively integrates core components such as a meshing groove, a meshing head, and a cylinder. After the adjustment operation is completed, the bending seat is tightly engaged and fixed in the meshing groove of the lower die adjustment seat by the meshing head. This mechanism effectively limits the lateral displacement of the bending seat, ensuring that the downward pressure during bending is not directly transmitted to the threaded part of the screw, thereby greatly reducing the risk of thread damage.

[0013] In the adjustment process, the cylinder plays a crucial role, driving the bending seat upwards to separate the engagement groove from the engagement head, thereby releasing the constraint on the lateral movement of the bending seat. Subsequently, through the precision transmission of the bidirectional screw, the two bending seats are accurately and synchronously adjusted to the desired position. This design not only improves the flexibility and accuracy of adjustment but also significantly enhances the durability and stability of the equipment, bringing a more efficient and reliable solution to the sheet metal processing field. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the bending seat of this utility model before it is installed.

[0016] Figure 3 This utility model Figure 2 A top-view structural diagram.

[0017] In the picture:

[0018] The components include: lower mold adjusting seat 1, base body 11, slide groove 12, adjusting groove 13, bidirectional screw 14, sliding block 15, cylinder 16, biting groove 2, bending seat 3, biting head 4, slider 5, bending roller 6, and servo motor 7. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides an adjustable lower die for continuous bending of sheet metal parts, including a lower die adjustment seat 1, a meshing groove 2, a bending seat 3, a meshing head 4, a slider 5, a bending roller 6, and a servo motor 7. The meshing heads 4, which are integrally formed with the lower bending seat 3, are formed on both sides of the upper surface of the lower die adjustment seat 1. Several meshing grooves 2 and meshing heads 4 are integrally formed and arranged laterally. There are two bending seats 3, which are mirror images of each other. The bending seats 3 and the slider 5 below them are connected to the lower die adjustment seat 1. A bending roller 6 is rotatably mounted on the upper inner side of each bending seat 3. A servo motor 7 is installed on the lower die adjustment seat 1.

[0023] Furthermore, the lower mold adjusting seat 1 includes a base body 11, a slide groove 12, and an adjusting groove 13. Two symmetrical slide grooves 12 are mirror-shaped on the base body 11. These two slide grooves 12 are used to install and support the slider 5, allowing the slider 5 to perform linear sliding and lifting movements within them. In addition, an adjusting groove 13 is also provided in the middle of the base body 11, which is located between the two slide grooves 12 and is used to install and support the bidirectional screw 14.

[0024] Furthermore, a bidirectional screw 14 is rotatably mounted within the adjusting groove 13. This bidirectional screw 14 has two helical sections with opposite directions of rotation: one left-handed and one right-handed. Each section of the helix is ​​connected to the sliding block 15 via ball nuts. This connection method not only reduces friction but also improves transmission efficiency and precision. Either end of the bidirectional screw 14 rotates through the base body 11 and is connected to the output end of a servo motor 7 fixedly mounted externally to the base body 11. Driven by the servo motor 17, precise rotation of the bidirectional screw 14 can be achieved.

[0025] Furthermore, two cylinders 16 are fixedly installed above the sliding block 15, each corresponding to one of the two bending seats 3. The output end of the cylinder 16 is fixed to the corresponding bending seat 3 above it. The extension and retraction of the cylinder 16 can drive the bending seat 3 to move up and down. This design not only simplifies the operation process but also improves the flexibility and stability of the equipment.

[0026] Furthermore, engagement heads 4 are provided on both sides below the bending seat 3. These engagement heads 4 allow them to engage with engagement grooves 2 provided on the base body 11. The engagement heads 4 have two mutually mirror-symmetrical inclined surfaces with an equilateral trapezoidal cross-section. When the bending seat 3 needs to be fixed, the engagement heads 4 move downward and engage tightly with the engagement grooves 2, thereby restricting the lateral movement of the bending seat 3. When the bending seat needs to be adjusted, the cylinder 16 drives the bending seat 3 to move upward, causing the engagement heads 4 to disengage from the engagement grooves 2. At this time, the position of the bending seat 3 can be adjusted by the transmission of the bidirectional screw 14.

[0027] The working principle is as follows: When the lower mold of this utility model needs to be adjusted, the servo motor 7 is started first. The output end of the servo motor 7 drives the bidirectional screw 14 to start rotating. Since the bidirectional screw 14 has two helices with opposite directions of rotation (left-hand helix and right-hand helix), when the bidirectional screw 14 rotates, the sliding block 15 connected to it through the ball nut will move in opposite directions respectively. This design ensures that when the position of one bending seat 3 is adjusted, the other bending seat 3 will also move at the same speed but in the opposite direction, thus maintaining the synchronization between the two.

[0028] Before starting the servo motor 7, the fixing of the bending seat 3 must be released in advance, and the cylinder 16 will start working. The output end of the cylinder 16 pushes the bending seat 3 upward, which causes the biting head 4 below the bending seat 3 to gradually disengage from the biting groove 2 on the base body 11. Once the biting head 4 is completely disengaged from the biting groove 2, the slider 5 set on the bending seat 3 can freely slide linearly and move up and down within the slide groove 12.

[0029] At this time, due to the continuous rotation of the bidirectional screw 14, the sliding block 15 will drive the cylinder 16 and the bending seat 3 connected to it to move precisely along the slide groove 12. This movement is synchronous and stable, ensuring that the bending seat 3 can be accurately adjusted to the required position.

[0030] Once the bending seat 3 is adjusted to the appropriate position, the cylinder 16 operates again, driving the bending seat 3 to move downwards. At this time, the engagement head 4 will re-engage with the engagement groove 2, thereby fixing the position of the bending seat 3 and preventing it from moving laterally during subsequent bending operations.

[0031] Finally, the bending roller 6 rotates above the inner side of the bending seat 3 to perform continuous bending operations on the sheet metal parts. Because the design of key components such as the lower die adjusting seat 1, the bending seat 3, and the engagement head fully considers stability and durability, the entire bending process can be carried out efficiently and accurately.

[0032] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An adjustable lower die for continuous bending of sheet metal parts, characterized in that, The assembly includes a lower mold adjusting seat (1), a meshing groove (2), a bending seat (3), a meshing head (4), a slider (5), a bending roller (6), and a servo motor (7). The meshing heads (4) are integrally set below the bending seat (3) and are opened on both sides of the upper surface of the lower mold adjusting seat (1). Several meshing grooves (2) and meshing heads (4) are integrally set and are arranged laterally. There are two bending seats (3) in a mirror image arrangement. The bending seats (3) and the slider (5) set below them are connected to the lower mold adjusting seat (1). A bending roller (6) is rotatably installed on the upper inner side of each bending seat (3). A servo motor (7) is installed on the lower mold adjusting seat (1).

2. The adjustable lower die for continuous bending of sheet metal parts as described in claim 1, characterized in that: The lower mold adjusting seat (1) includes a base body (11), a slide groove (12) and an adjusting groove (13). The base body (11) has two symmetrical slide grooves (12) mirrored on it, and a single adjusting groove (13) is provided. The adjusting groove (13) is located between the two slide grooves (12). Each slide groove (12) has two sliders (5) slidably installed in it. The slide groove (12) allows the sliders (5) to slide linearly and move up and down inside it.

3. The adjustable lower die for continuous bending of sheet metal parts as described in claim 2, characterized in that: A bidirectional screw (14) is rotatably installed in the adjustment groove (13) in the middle of the base body (11). The bidirectional screw (14) is provided with two helices with opposite directions of rotation, namely a left helix and a right helix. Each helix is ​​connected to the sliding block (15) through a ball nut. Either end of the bidirectional screw (14) rotates through the base body (11) and is fixed to the output end of the servo motor (7) fixedly installed outside the base body (11).

4. The adjustable lower die for continuous bending of sheet metal parts as described in claim 3, characterized in that: There are two sliding blocks (15), both of which are slidably installed inside the adjustment groove (13) below. A cylinder (16) is fixedly installed above each sliding block (15), and the output end of each cylinder (16) is fixed to the corresponding bending seat (3) above.

5. The adjustable lower die for continuous bending of sheet metal parts as described in claim 4, characterized in that: The engagement heads (4) provided on both sides below the bending seat (3) allow them to engage with the engagement grooves (2) provided on the base body (11).

6. The adjustable lower die for continuous bending of sheet metal parts as described in claim 5, characterized in that: The bite head (4) has two mutually mirror-symmetrical inclined surfaces. The cross section of the bite head (4) is an equilateral trapezoid. The bite head (4) can move upward to break free from the restriction of the bite groove (2).

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