Anti-deviation thin-walled rectangular tube spinning positioning tool

Abstract

The utility model discloses a prevent the thin -walled rectangular pipe rotary cutting positioning frock of deviation, relates to rectangular pipe rotary cutting technical field, including fixed base and the support fixed block of fixed base one side, is equipped with two support frame in support fixed block one side, is equipped with the positioning base in two support frame one side, and fixed assembly and reset component cooperate, can accurate positioning rectangular pipe and reset automatically after rotary cutting, solve the problem of displacement deviation of many tubes parallel snatch, improve processing accuracy and finished product qualification rate, the flexible design of arc limit stop and reset spring, avoid thin -walled pipe extrusion deformation, adapt to the difference of different equipment position simultaneously, need not manual calibration, save time and manpower, and the frock realizes from positioning to reset whole process automation, guarantees production process continuity, improves the degree of automation, and the structure design ensures that rectangular pipe is accurate reset to snatch after rotary cutting, provides accurate position for subsequent process, improves production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of rectangular tube rotary cutting technology, and in particular to a positioning fixture for preventing offset during thin-walled rectangular tube rotary cutting. Background Technology

[0002] In the field of rotary cutting of thin-walled rectangular tubes, PLC-controlled feeding cylinders are often used to push unprocessed parts to the gripping position. Multiple rectangular tubes are then gripped in parallel and moved to the rotary cutting equipment for processing. However, traditional positioning fixtures lack an effective anti-offset mechanism when positioning thin-walled rectangular tubes. Especially during the displacement process after multiple tubes are gripped in parallel, the easy deformation of thin-walled materials and the difference in displacement accuracy between equipment often lead to alignment deviations between the rectangular tubes and the rotary cutting equipment, which directly affects the accuracy of rotary cutting and the yield of finished products.

[0003] Currently, most rotary cutting positioning fixtures on the market have problems such as fixed structure and poor self-adaptability. Traditional fixtures cannot automatically adjust their positioning according to the positional differences of different processing equipment and need to rely on manual calibration, which is not only time-consuming and labor-intensive, but also prone to positioning errors due to human operation. At the same time, after rotary cutting, the rectangular tube cannot be accurately reset to the gripping position, resulting in gripping offset in subsequent processes, which seriously affects the continuity and automation of the production process.

[0004] To address the problems of large positioning deviation, inaccurate resetting, and easy deformation of thin-walled tubes in the aforementioned traditional technologies, this utility model proposes a thin-walled rectangular tube rotary cutting positioning fixture to prevent displacement. By designing a cooperative structure of fixing and resetting components, it achieves accurate positioning of the rectangular tube before rotary cutting and automatic resetting after rotary cutting, effectively solving the displacement deviation problem after multiple tubes are gripped in parallel. Utility Model Content

[0005] In view of the problems of large positioning deviation, inaccurate resetting, and easy deformation of thin-walled tubes in the above-mentioned traditional technologies, this utility model proposes a thin-walled rectangular tube rotary cutting positioning fixture to prevent displacement. By designing a cooperative structure of fixing component and resetting component, the fixture achieves accurate positioning of the rectangular tube before rotary cutting and automatic resetting after rotary cutting, effectively solving the problem of displacement deviation after multiple tubes are gripped in parallel.

[0006] Therefore, the purpose of this utility model is to enable the fixed component and the reset component to work together to accurately position the rectangular tube and automatically reset it after rotary cutting, solving the problem of displacement deviation when gripping multiple tubes in parallel, improving processing accuracy and finished product qualification rate. The flexible design of the arc-shaped limiting plate and the reset spring avoids the deformation of thin-walled tubes by extrusion, while adapting to the positional differences of different equipment. No manual calibration is required, saving time and manpower. This tooling realizes full automation from positioning to reset, ensuring the continuity of the production process, improving the degree of automation, and the structural design ensures that the rectangular tube is accurately reset to the gripping position after rotary cutting, providing an accurate position for subsequent processes, improving production efficiency and product quality.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a thin-walled rectangular tube rotary cutting positioning fixture for preventing offset, including a fixed base and a support fixing block on one side of the fixed base, two support frames on one side of the support fixing block, and a positioning base on one side of the two support frames; The fixing component includes a cylinder connecting plate installed on one side of the positioning base, a limiting constraint plate on one side of the positioning base, and two telescopic connecting rods on one side of the limiting constraint plate. The reset assembly includes a reset connecting plate mounted on one side of the positioning base, a reset fixing plate on one side of the reset connecting plate, and a movable connecting rod on one side of the reset fixing plate.

[0008] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: a telescopic cylinder is provided on one side of the cylinder connecting plate, and two telescopic fixing grooves are opened on the inner side of the cylinder connecting plate, and one end of each telescopic connecting rod passes through the telescopic fixing groove and is connected to the telescopic cylinder.

[0009] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: a limiting constraint groove is opened on the inner side of the reset connecting plate, two guide constraint grooves are opened on the inner side of the reset connecting plate, two arc-shaped limiting plates are provided on one side of the reset connecting plate, and a limiting baffle is provided on one side of the two arc-shaped limiting plates.

[0010] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: two guide connecting rods are provided on one side of the reset fixing plate, each guide connecting rod is sleeved inside the corresponding guide constraint groove, and each guide connecting rod is suspended after passing through the limiting baffle.

[0011] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: a connecting constraint plate is provided on one side of the two guide connecting rods, one end of the movable connecting rod passes through the limiting baffle and is connected to the connecting constraint plate, and a reset spring is provided on the inner side of the two arc-shaped limiting plates.

[0012] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: one end of the return spring is located inside the limiting constraint groove, the return spring is sleeved on the movable connecting rod, one end of the return spring is connected to the limiting baffle, the movable connecting rod has an external thread, and a limiting nut is provided between the two guide connecting rods.

[0013] As a preferred embodiment of the anti-deviation thin-walled rectangular tube rotary cutting positioning fixture of this utility model, wherein: the limiting nut is sleeved on the corresponding external thread, a rectangular tube is provided between the reset fixing plate and the limiting constraint plate, two rotary cutting device housings are provided on one side of the fixing base, and the two ends of the rectangular tube are respectively inserted into the inner side of the corresponding rotary cutting device housing.

[0014] The beneficial effects of this utility model are: The fixing and resetting components work together to accurately position the rectangular tube and automatically reset it after rotary cutting, solving the problem of displacement deviation when gripping multiple tubes in parallel, improving processing accuracy and finished product qualification rate. The flexible design of the arc-shaped limiting plate and the reset spring avoids the deformation of thin-walled tubes by extrusion, while adapting to the positional differences of different equipment. No manual calibration is required, saving time and manpower. This tooling realizes full automation from positioning to resetting, ensuring the continuity of the production process, improving the degree of automation, and the structural design ensures that the rectangular tube is accurately reset to the gripping position after rotary cutting, providing accurate position for subsequent processes, improving production efficiency and product quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial structural diagram of the present utility model.

[0017] Figure 3 This is a schematic diagram of the rectangular tube structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the resetting and fixing plate structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the limiting baffle structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the movable connecting rod structure of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Fixed base; 2. Support fixing block; 3. Support frame; 4. Positioning base; 5. Cylinder connecting plate; 6. Reset connecting plate; 7. Telescopic cylinder; 8. Telescopic connecting rod; 9. Limit constraint plate; 10. Arc-shaped limit plate; 11. Limit baffle; 12. Limit constraint groove; 13. Guide constraint groove; 14. Reset fixing plate; 15. Movable connecting rod; 16. Reset spring; 17. Guide connecting rod; 18. Connecting constraint plate; 19. External thread; 20. Limit nut; 21. Telescopic fixing groove; 22. Rectangular tube; 23. Rotary cutting device housing. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0023] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a thin-walled rectangular tube rotary cutting positioning fixture for preventing deviation. It includes a fixed base 1 and a support fixing block 2 on one side of the fixed base 1. Two support frames 3 are provided on one side of the support fixing block 2, and a positioning base 4 is provided on one side of the two support frames 3. It includes a cylinder connecting plate 5 installed on one side of the positioning base 4, a limiting constraint plate 9 on one side of the positioning base 4, two telescopic connecting rods 8 on one side of the limiting constraint plate 9, and a telescopic cylinder 7 on one side of the cylinder connecting plate 5. Two telescopic fixing grooves 21 are opened on the inner side of the cylinder connecting plate 5. One end of each telescopic connecting rod 8 passes through the telescopic fixing groove 21 and is connected to the telescopic cylinder 7. A limiting constraint groove 12 is opened on the inner side of the reset connecting plate 6, and two guide constraint grooves 13 are opened on the inner side of the reset connecting plate 6. Two arc-shaped limiting plates 10 are provided on one side of the reset connecting plate 6, and a limiting baffle 11 is provided on one side of the two arc-shaped limiting plates 10. Two guide connecting rods 17 are provided on one side of the reset fixing plate 14. Each guide connecting rod 17 is sleeved on the inner side of the corresponding guide constraint groove 13, and each guide connecting rod 17 is suspended after passing through the limiting baffle 11. Example 2

[0024] Reference Figures 3-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a reset connecting plate 6 is installed on one side of the positioning base 4, a reset fixing plate 14 is provided on one side of the reset connecting plate 6, a movable connecting rod 15 is provided on one side of the reset fixing plate 14, a connecting constraint plate 18 is provided on one side of the two guide connecting rods 17, one end of the movable connecting rod 15 passes through the limiting baffle 11 and is connected to the connecting constraint plate 18, and a reset spring 16 is provided on the inner side of the two arc-shaped limiting plates 10. One end of the return spring 16 is located inside the limiting constraint groove 12. The return spring 16 is sleeved on the movable connecting rod 15. One end of the return spring 16 is connected to the limiting baffle 11. The movable connecting rod 15 has an external thread 19. A limiting nut 20 is provided between the two guide connecting rods 17. The limiting nut 20 is sleeved on the corresponding external thread 19. A rectangular tube 22 is provided between the reset fixing plate 14 and the limiting constraint plate 9. Two rotary cutting device housings 23 are provided on one side of the fixed base 1. The two ends of the rectangular tube 22 are respectively inserted into the inner side of the corresponding rotary cutting device housing 23.

[0025] In the initial state, the return spring 16 is in a naturally extended state, and a positioning space for the rectangular tube 22 is formed between the return fixing plate 14 and the limiting constraint plate 9. The two ends of the rectangular tube 22 are moved by the rotary cutting device housing 23 to insert the rectangular tube 22. When in use, the telescopic cylinder 7 is activated, and the limiting constraint plate 9 is pushed towards the return fixing plate 14 through the telescopic connecting rod 8. The limiting constraint plate 9 and the return fixing plate 14 cooperate to clamp the rectangular tube 22. The contact surface of the limiting constraint plate 9 is designed with an anti-slip structure to ensure that the thin-walled tube is stably fixed.

[0026] The guide connecting rod 17 slides in the guide constraint groove 13 to ensure the accurate movement trajectory of the limit constraint plate 9. If there are positional differences between different devices, the initial position of the reset fixing plate 14 can be finely adjusted by adjusting the position of the limit nut 20 on the external thread 19 of the movable connecting rod 15 to achieve adaptive positioning calibration. After the rectangular tube 22 is fixed, the rotary cutting device housings 23 at both ends are activated to perform rotary cutting on the tube. At this time, the fixing component maintains the clamping force continuously, and the reset spring 16 of the reset component is in a compressed state, storing reset potential energy.

[0027] After the rotary cutting is completed, the telescopic cylinder 7 retracts, releasing the thrust on the limit constraint plate 9, which drives the reset fixing plate 14 to move away from the reset connecting plate 6, so that the rectangular tube 22 is reset to its original position due to the push of the reset connecting plate 6.

[0028] The remaining structure is the same as that in Example 1.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A thin-walled rectangular tube rotary cutting positioning fixture to prevent offset, characterized in that: It includes a fixed base (1) and a support fixing block (2) on one side of the fixed base (1). Two support frames (3) are provided on one side of the support fixing block (2), and a positioning base (4) is provided on one side of the two support frames (3). The fixing component includes a cylinder connecting plate (5) installed on one side of the positioning base (4), a limiting constraint plate (9) is provided on one side of the positioning base (4), and two telescopic connecting rods (8) are provided on one side of the limiting constraint plate (9). The reset assembly includes a reset connecting plate (6) installed on one side of the positioning base (4), a reset fixing plate (14) on one side of the reset connecting plate (6), and a movable connecting rod (15) on one side of the reset fixing plate (14).

2. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 1, characterized in that: The cylinder connecting plate (5) is provided with a telescopic cylinder (7) on one side. Two telescopic fixing grooves (21) are opened on the inner side of the cylinder connecting plate (5). One end of each telescopic connecting rod (8) passes through the telescopic fixing groove (21) and is connected to the telescopic cylinder (7).

3. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 1, characterized in that: The reset connecting plate (6) has a limiting constraint groove (12) on its inner side, and two guide constraint grooves (13) on its inner side. The reset connecting plate (6) has two arc-shaped limiting plates (10) on one side, and a limiting baffle (11) on one side of the two arc-shaped limiting plates (10).

4. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 3, characterized in that: Two guide connecting rods (17) are provided on one side of the reset fixing plate (14). Each guide connecting rod (17) is sleeved inside the corresponding guide constraint groove (13). Each guide connecting rod (17) is suspended after passing through the limiting baffle (11).

5. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 4, characterized in that: One side of each of the two guide connecting rods (17) is provided with a connecting constraint plate (18). One end of the movable connecting rod (15) passes through the limiting baffle (11) and is connected to the connecting constraint plate (18). The inner side of each of the two arc-shaped limiting plates (10) is provided with a reset spring (16).

6. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 5, characterized in that: One end of the reset spring (16) is located inside the limiting constraint groove (12). The reset spring (16) is sleeved on the movable connecting rod (15). One end of the reset spring (16) is connected to the limiting baffle (11). The movable connecting rod (15) has an external thread (19). A limiting nut (20) is provided between the two guide connecting rods (17).

7. The anti-displacement thin-walled rectangular tube rotary cutting positioning fixture according to claim 6, characterized in that: The limiting nut (20) is sleeved on the corresponding external thread (19). A rectangular tube (22) is provided between the reset fixing plate (14) and the limiting constraint plate (9). Two rotary cutting device housings (23) are provided on one side of the fixed base (1). The two ends of the rectangular tube (22) are respectively inserted into the inner side of the corresponding rotary cutting device housing (23).

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