Screw pitch adjusting device for three-dimensional roll bending

Abstract

The utility model relates to a screw pitch adjusting device for three-dimensional roll bending, which comprises a guide seat arranged on a panel, a guide shaft is vertically arranged on the guide seat in a sliding manner, a follow-up supporting mechanism is arranged at the upper end of the guide shaft, a lifting adjusting mechanism is arranged at the lower end of the guide shaft, the follow-up supporting mechanism comprises a follow-up support rotationally arranged at the upper end of the guide shaft, and a screw pitch adjusting mechanism is arranged on the follow-up support. Side plates are respectively arranged on two sides of the follow-up support, a follow-up shaft is arranged between the two side plates, a riding wheel is arranged on the follow-up shaft, the riding wheel can rotate around the follow-up shaft and can also move along the follow-up shaft, and the lifting adjusting mechanism drives the guide shaft to lift and adjust the lifting height. The device has the advantages of reasonable structural design, accurate and efficient screw pitch adjustment, high profile processing quality and the like.

Description

Technical fields:

[0001] This utility model relates to the field of three-dimensional rolling bending technology, specifically to a pitch adjustment device for three-dimensional rolling bending. Background technology:

[0002] Three-dimensional roll bending refers to the three-dimensional spiral roll bending process of profiles using a roll bending machine, resulting in a spiral shape. Examples include the processing of heat exchange tubes and spiral conveyor tracks. Existing roll bending machines primarily adjust the pitch by changing the height of the material support roller at the discharge end during three-dimensional roll bending. When the material support roller height is not adjusted, planar roll bending is performed. The structure of existing roll bending machines can be referenced from our previously filed applications for a material support device for roll bending machines (authorization announcement number: CN214023135U), a downward pressure wheel drive device (authorization announcement number: CN209531779U), and a roll bending machine (authorization announcement number: CN210497808U).

[0003] While existing roll bending machines can perform three-dimensional roll bending, they require manual adjustment of the material support roller height in practical applications. This is not only time-consuming and labor-intensive, but also results in relatively low adjustment accuracy, leading to lower processing precision. Therefore, it is necessary to optimize and improve the pitch adjustment device of existing roll bending machines to enhance pitch adjustment accuracy and efficiency.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention:

[0005] The purpose of this utility model is to solve the problems existing in the prior art and provide a pitch adjustment device for three-dimensional rolling bending, which has the advantages of reasonable structural design, precise and efficient pitch adjustment, and high profile processing quality.

[0006] This utility model achieves the above objectives by adopting the following technical solutions:

[0007] A pitch adjustment device for three-dimensional roll bending includes a guide seat mounted on a panel, a guide shaft slidably mounted vertically on the guide seat, a follower support mechanism at the upper end of the guide shaft, and a lifting adjustment mechanism at the lower end of the guide shaft. The follower support mechanism includes a follower support rotatably mounted on the upper end of the guide shaft, side plates on both sides of the follower support, a follower shaft between the two side plates, and a support roller on the follower shaft. The support roller can rotate around the follower shaft or move along the follower shaft. The lifting adjustment mechanism drives the guide shaft to lift and adjust the lifting height.

[0008] The guide shaft is provided with a guide groove along its axial direction, and the corresponding guide seat is provided with a guide protrusion. The guide protrusion and the guide groove cooperate to realize the vertical lifting and lowering of the guide shaft.

[0009] The roller includes a cylinder with a through hole at the center and a cylindrical protrusion on one side of the outer wall.

[0010] The lifting and adjusting mechanism includes a cylinder seat located at the lower end of the panel, a lifting cylinder vertically mounted on the cylinder seat, the lifting cylinder being connected to a guide shaft, a magnetic ring on the piston of the lifting cylinder, magnetic switches A at the upper and lower ends of the outer side of the lifting cylinder, a guide rail seat on one side of the lifting cylinder, an adjusting guide rail vertically mounted on the guide rail seat, an adjusting slider on the adjusting guide rail, an adjusting nut on the adjusting slider, a magnetic switch B on the adjusting nut, and an adjusting screw on the adjusting nut. The adjusting screw is rotatably mounted at both ends, and an adjusting handwheel or adjusting motor is mounted at one end of the screw.

[0011] The lifting and adjusting mechanism includes a linear electric slide table vertically positioned at the lower end of the panel, and the lower end of the guide shaft is mounted on the slide base of the linear electric slide table.

[0012] A follower reset mechanism is provided between the guide shaft and the follower support. The follower reset mechanism includes a reset base fixedly mounted on the guide shaft. The reset base has two mounting holes spaced apart. Each mounting hole has a threaded sleeve at both ends. A top pin is movably mounted on the threaded sleeve. A limiting protrusion is provided on the top pin. A reset spring is provided between the two top pins in the same mounting hole. The follower support has two top plates spaced apart. The top pin acts on the top plate.

[0013] The present invention, by adopting the above-described structure, can bring the following beneficial effects:

[0014] (1) A more precise lifting adjustment mechanism is adopted, which can adjust the pitch by changing the lifting height while realizing the lifting action; (2) Follow-up support is adopted for the support of the profile, that is, the support roller can follow the movement of the profile, reducing the obstruction to the spiral rolling forming movement of the profile; (3) The lifting, lifting adjustment, follow-up support and follow-up reset are integrated into the design, which has a compact structure and smoother connection of each action, which helps to improve the three-dimensional rolling processing accuracy of the profile. Attached image description:

[0015] Figure 1 This is a schematic diagram of the pitch adjustment device for three-dimensional rolling bending according to this utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional roll bending pitch adjustment device of this utility model without the panel;

[0017] Figure 3 This is a schematic diagram of the structure of the guide seat of this utility model;

[0018] Figure 4This is a schematic diagram of the structure of the guide shaft of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the support roller of this utility model;

[0020] Figure 6 This is a schematic diagram of the lifting and adjusting mechanism of this utility model;

[0021] Figure 7 This is a schematic diagram of the lifting and adjusting mechanism of this utility model, which uses a motor to adjust the pitch.

[0022] Figure 8 This is a schematic diagram showing the connection relationship between the follower reset mechanism and the follower support of this utility model;

[0023] Figure 9 This is a schematic diagram of the follow-up reset mechanism of this utility model;

[0024] Figure 10 This is an exploded view of the follow-up reset mechanism of this utility model;

[0025] Figure 11 This is a schematic diagram of the working process of the follow-up reset mechanism of this utility model;

[0026] Figure 12 This is a schematic diagram of the structure of the lifting and adjusting mechanism of this utility model, which uses a linear electric slide table.

[0027] In the diagram, 1. Panel, 2. Guide seat, 3. Guide shaft, 4. Follower support mechanism, 401. Follower support, 402. Side plate, 403. Follower shaft, 404. Support roller, 4041. Cylinder, 4042. Through hole, 4043. Columnar protrusion, 5. Lifting and adjusting mechanism, 501. Cylinder seat, 502. Lifting cylinder, 503. Piston, 504. Magnetic ring, 505. Magnetic switch A, 506. Guide rail seat, 507. Adjusting guide rail 508. Adjusting slider; 509. Adjusting nut; 510. Magnetic switch B; 511. Adjusting screw; 512. Adjusting handwheel; 513. Adjusting motor; 514. Linear electric slide; 515. Slide block; 6. Guide groove; 7. Guide protrusion; 8. Follow-up reset mechanism; 801. Reset base; 802. Mounting hole; 803. Sleeve; 804. Top pin; 805. Limiting protrusion; 806. Reset spring; 807. Top plate. Detailed implementation method:

[0028] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0030] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0031] Furthermore, terms such as “upper end”, “lower end”, “A”, “B”, and “one side” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the location of the indicated technical feature.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "provided with," "set up," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Example 1

[0034] like Figure 1-11 As shown, the pitch adjustment device for three-dimensional roll bending includes a guide seat 2 mounted on a panel 1. A guide shaft 3 is vertically slidably mounted on the guide seat 2. A follower support mechanism 4 is mounted on the upper end of the guide shaft 3, and a lifting adjustment mechanism 5 is mounted on the lower end of the guide shaft 3. The follower support mechanism 4 includes a follower support 401 rotatably mounted on the upper end of the guide shaft 3. Side plates 402 are mounted on both sides of the follower support 401, and a follower shaft 403 is mounted between the two side plates 402. A support roller 404 is mounted on the follower shaft 403. The support roller 404 can rotate around the follower shaft 403 or move along the follower shaft 403. The lifting adjustment mechanism 5 drives the guide shaft 3 to lift and adjust the lifting height. A more precise lifting and adjusting mechanism 5 is adopted, which can adjust the pitch by changing the lifting height while realizing the lifting action; the profile support adopts follow-up support, that is, the support roller 404 can follow the movement of the profile, reducing the obstruction to the spiral rolling forming movement of the profile; the lifting, lifting adjustment, follow-up support and follow-up reset are integrated into the design, with a compact structure and smoother connection between each action, which helps to improve the three-dimensional rolling processing accuracy of the profile.

[0035] The guide shaft 3 is provided with a guide groove 6 along its axial direction, and the corresponding guide seat 2 is provided with a guide protrusion 7. The guide protrusion 7 and the guide groove 6 cooperate to realize the vertical lifting and lowering of the guide shaft 3.

[0036] The support roller 404 includes a cylinder 4041, with a through hole 4042 at its center and a cylindrical protrusion 4043 on one outer wall. The specific structure of the support roller 404 is provided to facilitate the placement of profiles on it.

[0037] The lifting and adjusting mechanism 5 includes a cylinder seat 501 located at the lower end of the panel 1. A lifting cylinder 502 is vertically mounted on the cylinder seat 501. The lifting cylinder 502 is connected to the guide shaft 3. A magnetic ring 504 is mounted on the piston 503 of the lifting cylinder 502. Magnetic switches A505 are respectively mounted on the upper and lower ends of the outer side of the lifting cylinder 502. A guide rail seat 506 is mounted on one side of the lifting cylinder 502. An adjusting guide rail 507 is vertically mounted on the guide rail seat 506. An adjusting slider 508 is mounted on the adjusting guide rail 507. An adjusting nut 509 is mounted on the adjusting slider 508. A magnetic switch B510 is mounted on the adjusting nut 509. An adjusting screw 511 is also mounted on the adjusting nut 509. The two ends of the adjusting screw 511 are rotatably mounted. An adjusting handwheel 512 or an adjusting motor 513 is mounted on one end of the screw 511. The specific structure of the lifting adjustment mechanism 5 is given. It uses a cylinder to drive the lifting, and then uses magnetic induction switch technology to precisely adjust the lifting height.

[0038] A follower reset mechanism 8 is provided between the guide shaft 3 and the follower support 401. The follower reset mechanism 8 includes a reset base 801 fixedly mounted on the guide shaft 3. The reset base 801 has two mounting holes 802 spaced apart. Each mounting hole 802 has a threaded sleeve 803 at both ends. A top pin 804 is movably mounted on the threaded sleeve 803. The top pin 804 has a limiting protrusion 805. A reset spring 806 is provided between the two top pins 804 within the same mounting hole 802. The follower support 401 has two top plates 807 spaced apart. The top pins 804 act on the top plates 807. The specific structure of the follower reset mechanism 8 is given. It cleverly utilizes the rotational movement of the follower support 401 to compress the reset spring 806, and then uses the reset spring 806 to drive the follower support 401 to reset.

[0039] Example 2

[0040] like Figure 12As shown, the lifting and adjusting mechanism 5 includes a linear electric slide 514 vertically positioned at the lower end of the panel 1, and the lower end of the guide shaft 3 is mounted on the slide base 515 of the linear electric slide 514. Another specific structure of the lifting and adjusting mechanism 5 is given, which adopts existing linear electric slide 514 technology. The lifting height can be controlled by controlling the motor, integrating lifting and adjustment into a single design. The linear electric slide 514, also called a linear slide or linear module, converts rotary motion into linear motion through a motor-driven transmission mechanism (such as a ball screw or synchronous belt), achieving precise positioning with the help of guide rails and sensor feedback.

[0041] The above specific embodiments should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0042] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A pitch adjusting device for three-dimensional roll bending, characterized by, The device includes a guide seat mounted on a panel, a guide shaft slidably mounted vertically on the guide seat, a follower support mechanism at the upper end of the guide shaft, and a lifting adjustment mechanism at the lower end of the guide shaft. The follower support mechanism includes a follower support rotatably mounted on the upper end of the guide shaft, side plates on both sides of the follower support, a follower shaft between the two side plates, and a support roller on the follower shaft. The support roller can rotate around the follower shaft or move along the follower shaft. The lifting adjustment mechanism drives the guide shaft to lift and adjust the lifting height.

2. The pitch adjusting device for three-dimensional roll bending according to claim 1, wherein The guide shaft is provided with a guide groove along its axial direction, and the corresponding guide seat is provided with a guide protrusion. The guide protrusion and the guide groove cooperate to realize the vertical lifting and lowering of the guide shaft.

3. The pitch adjusting device for three-dimensional roll bending according to claim 2, wherein The roller includes a cylinder with a through hole at the center and a cylindrical protrusion on one side of the outer wall.

4. The pitch adjusting device for three-dimensional roll bending according to claim 3, wherein A follower reset mechanism is provided between the guide shaft and the follower support. The follower reset mechanism includes a reset base fixedly mounted on the guide shaft. The reset base has two mounting holes spaced apart. Each mounting hole has a threaded sleeve at both ends. A top pin is movably mounted on the threaded sleeve. A limiting protrusion is provided on the top pin. A reset spring is provided between the two top pins in the same mounting hole. The follower support has two top plates spaced apart. The top pin acts on the top plate.

5. The pitch adjusting device for three-dimensional roll bending according to claim 4, wherein The lifting and adjusting mechanism includes a cylinder seat located at the lower end of the panel, a lifting cylinder vertically mounted on the cylinder seat, the lifting cylinder being connected to a guide shaft, a magnetic ring on the piston of the lifting cylinder, magnetic switches A at the upper and lower ends of the outer side of the lifting cylinder, a guide rail seat on one side of the lifting cylinder, an adjusting guide rail vertically mounted on the guide rail seat, an adjusting slider on the adjusting guide rail, an adjusting nut on the adjusting slider, a magnetic switch B on the adjusting nut, and an adjusting screw on the adjusting nut. The adjusting screw is rotatably mounted at both ends, and an adjusting handwheel or adjusting motor is mounted at one end of the screw.

6. The pitch adjusting device for three-dimensional roll bending according to claim 4, wherein The lifting and adjusting mechanism includes a linear electric slide table vertically positioned at the lower end of the panel, and the lower end of the guide shaft is mounted on the slide base of the linear electric slide table.

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