Round pipe machining guide assembly

Abstract

The utility model relates to the technical field of round tube processing, in particular to a round tube processing guide assembly which comprises a guide tube for round tube workpieces to penetrate through, a plurality of fixing frames are installed on the inner wall of the guide tube at equal intervals, fixing plates are fixedly installed at the two ends of each fixing frame, and two limiting strip frames are fixedly installed between the fixing plates at the two ends. A sliding opening is preset in each limiting strip frame, a connecting rod is installed between the two limiting strip frames, a shaft sleeve is fixedly installed at the top end of the connecting rod, a sleeve shaft is installed in the shaft sleeve, the two ends of the sleeve shaft extend into the sliding openings in the corresponding positions to form sliding supporting, a rubber block is fixedly installed at the bottom end, away from the shaft sleeve, of the connecting rod, and the round pipe workpiece abuts against and is supported through the rubber block. The rubber block is used for supporting, compared with large-area supporting, the contact face between the rubber block and the round pipe workpiece is narrow, friction force is reduced, and rubber materials are low in hardness and not prone to scratching the surface of a metal or non-metal round pipe.

Description

Technical Field

[0001] This utility model relates to the field of round tube processing technology, and specifically to a round tube processing guide component. Background Technology

[0002] Guiding the round tube during machining is a crucial step in metal processing technology. It ensures that the metal round tube moves along a predetermined path during processing, preventing bending or deviation, reducing downtime for adjustments due to tube misalignment or bending, and thus improving processing efficiency. At the same time, a suitable guiding mechanism can reduce wear and deformation of the tube during processing, improving machining accuracy and extending the tube's service life.

[0003] The current guide frame has a large contact area with the round tube workpiece. When the round tube is transported and moved, the friction between the round tube and the guide frame will be significantly higher than in other places. If the round tube with a coating or pattern is transported, the friction will cause scratches on its surface, affecting its performance or appearance. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A guide assembly for processing round tubes includes a guide tube through which a round tube workpiece passes and a vertical shaft. Multiple fixed brackets are evenly spaced on the inner wall of the guide tube. A fixed plate is fixedly installed at both ends of each fixed bracket. Two limiting frames are fixedly installed between the two fixed plates. Each limiting frame has a pre-set sliding opening. A connecting rod is installed between the two limiting frames. A bushing is fixedly installed at the top of the connecting rod. A sleeve shaft is installed inside the bushing. Both ends of the sleeve shaft extend into the corresponding sliding openings to form sliding supports. A rubber block is fixedly installed at the bottom end of the connecting rod away from the bushing. The round tube workpiece is supported by the rubber block.

[0006] Furthermore, a threaded rod is installed on the limiting frame within the sliding port, and a second motor is installed on the fixing frame corresponding to one end of the threaded rod. The output end of the second motor is fixedly connected to the threaded rod. A threaded hole is opened on the sleeve shaft within the sliding port, and the threaded rod is threadedly connected to the threaded hole. The threaded rod can be fixed by a bearing assembly, or a hole can be opened on the limiting frame and then passed through the hole for fixing. Considering the limitations of the sliding port, the thread length on the threaded rod should be equal to the length of the sliding port. At the same time, to avoid the connecting rod excessively pressing against the round tube workpiece, the second motor can stop working in a timely manner through its own overload protection.

[0007] Furthermore, a slider is installed between the two limiting frames. Each end of the slider has a pre-drilled notch corresponding to a position on the limiting frame. The notch engages with the corresponding limiting frame to form a sliding support for the slider. A spring is fixedly installed on the bottom surface of the slider and on the connecting rod at the corresponding position. When the spring pulls the connecting rod, the angle can be maintained between 30° and 60° when the connecting rod is relaxed, facilitating the insertion and support of the round tube workpiece.

[0008] Furthermore, the slider at the bayonet position has a ball bearing cavity containing a rolling steel ball. A groove is formed on the limiting frame corresponding to the steel ball's position, with the steel ball partially abutting into the groove. The steel ball reduces the friction between the slider and the limiting frame, and its placement on the slider facilitates installation between the slider and the limiting frame.

[0009] Furthermore, a funnel-shaped cover is fixedly installed on the front end of the guide tube corresponding to the opening direction of the connecting rod. The funnel-shaped cover is a funnel-shaped structure with one large opening and the other small opening. The smaller opening is connected to the guide tube to facilitate the insertion of the round tube workpiece.

[0010] Furthermore, the rubber block is columnar. The columnar structure makes the outer surface circular, so that the contact surface is within a certain range regardless of its position in contact with the circular tube workpiece, and the contact surface size does not vary due to the rotation of the connecting rod.

[0011] Furthermore, the outer surface of the rubber block is pre-formed with dense hemispherical protrusions. Because the rubber material is relatively soft, the hemispherical protrusions will deform and collapse when pressed against the cylindrical workpiece, thus increasing the contact area and frictional resistance. If hemispherical protrusions were placed on a hard material, it would only reduce the frictional resistance.

[0012] Furthermore, a vertical shaft is fixedly installed at the bottom center of the guide tube, and a fixed base is installed directly below the vertical shaft. The vertical shaft is mounted on the top of the fixed base via a load-bearing bearing. Multiple evenly spaced convex teeth are installed on the vertical shaft above the load-bearing bearing. Gears are installed on the outer side of the load-bearing bearing at the positions of the convex teeth, and the gears mesh with the convex teeth. A motor is installed on the fixed base at the position corresponding to the gear, and the output end of the motor is fixedly connected to the gear. This allows the angle of the entire guide tube to be adjusted by rotation. When the guide tube is installed horizontally, the horizontal angle is adjusted; when the guide tube is installed vertically, the tilt angle is adjusted.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets multiple obliquely extending connecting rods inside the guide tube and sets rubber blocks at the ends of the connecting rods. When the round tube workpiece is inserted, it is supported by the rubber blocks. Compared with large-area support, the contact surface between the rubber block and the round tube workpiece is narrow, and the friction is reduced. In addition, the rubber material has low hardness and is not easy to scratch the surface of metal or non-metal round tubes.

[0015] 2. In this utility model, a slider is added to the limiting frame and a spring is used to connect the connecting rod. When the connecting rod is relaxed, it can always be maintained at a certain angle to facilitate the subsequent insertion of the round tube workpiece.

[0016] 3. In this utility model, the connecting rod is linked to the sleeve shaft at the position of the connecting rod, thereby pushing the connecting rod to press against the round tube workpiece, and at this time the round tube workpiece can be clamped and fixed.

[0017] 4. In this utility model, the guide tube is supported by a vertical shaft and then driven to rotate by a motor, so that the guiding direction of the guide tube is adjustable and flexible in use. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the fixing of the circular tube workpiece in this utility model;

[0021] Figure 4 This is a schematic diagram of the installation of the connecting rod in this utility model;

[0022] Figure 5 This is a schematic diagram of the spring installation in this utility model;

[0023] Figure 6 This is a schematic diagram of the installation of the slider in this utility model.

[0024] Reference numerals in the attached drawings: 1. Guide tube; 2. Bucket-shaped cover; 3. Vertical shaft; 4. Load-bearing bearing; 5. Fixed base; 6. Convex tooth; 7. Gear; 8. Motor 1; 9. Limiting frame; 10. Fixing plate; 11. Bushing; 12. Sleeve shaft; 13. Sliding port; 14. Connecting rod; 15. Threaded hole; 16. Rubber block; 17. Hemispherical protrusion; 18. Threaded rod; 19. Motor 2; 20. Slider; 21. Spring; 22. Bayonet; 23. Ball bearing cavity; 24. Steel ball; 25. Groove; 26. Fixing frame; 27. Round tube workpiece. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] This application provides a guide assembly for round tube processing, mainly solving the problem that the large contact area between the existing guide frame and the round tube will wear down the coating or the surface of the patterned round tube. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-6 Please provide a detailed explanation:

[0027] A guide assembly for round tube processing includes a guide tube 1, through which a round tube workpiece 27 passes. Multiple fixing frames 26 are installed at equal intervals on the inner wall of the guide tube 1. Fixing plates 10 are fixedly installed at both ends of each fixing frame 26. Two limiting frames 9 are fixedly installed between the two fixing plates 10. Each limiting frame 9 has a pre-set sliding port 13. A connecting rod 14 is installed between the two limiting frames 9. A bushing 11 is fixedly installed at the top of the connecting rod 14. A sleeve shaft 12 is installed inside the bushing 11. Both ends of the sleeve shaft 12 extend into the corresponding sliding ports 13 to form sliding supports. A rubber block 16 is fixedly installed at the bottom of the connecting rod 14 away from the bushing 11.

[0028] A threaded rod 18 is installed on the limiting frame 9 inside the sliding port 13. A motor 19 is installed on the fixed frame 26 at one end of the threaded rod 18. The output end of the motor 19 is fixedly connected to the threaded rod 18. A threaded hole 15 is opened on the sleeve 12 inside the sliding port 13. The threaded rod 18 is threadedly connected to the threaded hole 15. The round tube workpiece 27 is supported by the rubber block 16.

[0029] Before use, the second motor 19 drives the threaded rod 18 to rotate. Utilizing the threaded connection between the threaded rod 18 and the sleeve 12, the sleeve 12, bushing 11, and connecting rod 14 are moved towards the second motor 19 to enter the initial working position. Then, the round tube workpiece 27 passes through the guide tube 1. Since the connecting rod 14 is fixed to the sleeve 12 and the bushing 11, when the round tube workpiece 27 is inserted, it will squeeze open each connecting rod 14, thereby expanding the gap in the middle of the guide tube 1 to allow the round tube workpiece 27 to pass through. The rubber block 16 on the connecting rod 14 contacts the round tube workpiece 27. Firstly, compared to a large area of ​​support, the contact surface of the rubber block 16 is narrow, which reduces friction. Secondly, the rubber material has low hardness and is not easy to scratch the surface of metal or non-metal round tubes.

[0030] When it is necessary to clamp the round tube workpiece 27, the control motor 2 19 is activated and rotates in the opposite direction to drive the connecting rod 14 away from the motor 2 19. At this time, since the rubber block 16 at one end of the connecting rod 14 abuts against the surface of the round tube workpiece 27, and the bushing 11 is pushed, when frictional resistance is generated between the rubber block 16 and the surface of the round tube workpiece 27, the push of the connecting rod 14 will make the rubber block 16 press more tightly against the surface of the round tube workpiece 27, forming higher frictional resistance, thereby clamping and fixing.

[0031] In some embodiments, a slider 20 is installed between two limiting frames 9. The slider 20 has a slot 22 reserved at both ends corresponding to the positions of the limiting frames 9. The slot 22 is engaged with the limiting frames 9 at the corresponding positions to form a sliding support for the slider 20. A spring 21 is fixedly installed on the bottom surface of the slider 20 and the connecting rod 14 at the corresponding positions.

[0032] Spring 21 constrains the position of connecting rod 14 in the relaxed state, keeping it in a certain tilted state. This prevents the uppermost connecting rod 14 from being vertical under the action of gravity, while the lowermost connecting rod 14 rests almost horizontally against the fixed plate 10 under the action of gravity. The positional constraint of connecting rod 14 facilitates the support of the round tube workpiece 27 after it is inserted, preventing the round tube workpiece 27 from falling out of the gap between adjacent rubber blocks 16 and ensuring the stability of the round tube workpiece 27 during insertion. When connecting rod 14 is pushed and moved, slider 20 moves accordingly, always providing support for spring 21.

[0033] In some embodiments, the slider 20 at the bayonet 22 position has a ball cavity 23, in which a rolling steel ball 24 is installed. The limiting frame 9 has a groove 25 corresponding to the position of the steel ball 24, and part of the steel ball 24 abuts into the groove 25.

[0034] The steel ball 24 reduces the frictional resistance between the slider 20 and the limiting frame 9, thereby facilitating the movement of the slider 20 and reducing the operating load of the motor 19.

[0035] In some embodiments, a funnel-shaped cover 2 is fixedly installed on the front end of the guide tube 1 corresponding to the opening direction of the connecting rod 14. The funnel-shaped cover 2 is a funnel-shaped structure with one large opening and the other small opening, and the smaller opening is connected to the guide tube 1. The funnel-shaped cover 2 increases the inlet cross-sectional area of ​​the guide tube 1, which facilitates the insertion of the round tube workpiece 27.

[0036] In some embodiments, the rubber block 16 is columnar, and the outer surface of the rubber block 16 is provided with dense hemispherical protrusions 17.

[0037] The columnar structure ensures that the contact surface between the rubber block 16 and the round tube workpiece 27 remains at a certain size when the connecting rod 14 rotates, thus guaranteeing frictional resistance. The hemispherical protrusion 17 further increases the friction area between the rubber block 16 and the round tube workpiece 27, thereby increasing frictional resistance.

[0038] In some embodiments, a vertical shaft 3 is fixedly installed at the bottom middle position of the guide tube 1, and a fixed base 5 is installed directly below the vertical shaft 3. The vertical shaft 3 is installed on the top of the fixed base 5 through a load-bearing bearing 4. A plurality of evenly spaced convex teeth 6 are installed on the vertical shaft 3 above the load-bearing bearing 4. A gear 7 is installed on the outside of the load-bearing bearing 4 at the position of the convex teeth 6. The gear 7 meshes with the convex teeth 6. A motor 8 is installed on the fixed base 5 at the position corresponding to the gear 7. The output end of the motor 8 is fixedly connected to the gear 7. Both the motor 8 and the motor 19 are stepper motors.

[0039] When the motor 8 is working, it drives the gear 7 to rotate. Then, by utilizing the meshing relationship between the gear 7 and the convex tooth 6, it drives the vertical shaft 3 and the entire guide tube 1 to rotate, thereby adjusting the angle. In this way, when the round tube workpiece 27 passes through the guide tube 1 for guidance, it can be guided in different directions.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A guide assembly for machining a round tube, comprising a guide tube (1) through which a round tube workpiece (27) passes and a vertical shaft (3), characterized in that, Multiple fixing frames (26) are installed at equal intervals on the inner wall of the guide tube (1). Each fixing frame (26) has a fixing plate (10) fixedly installed at both ends. Two limiting frames (9) are fixedly installed between the fixing plates (10) at both ends. Each limiting frame (9) has a pre-set sliding port (13). A connecting rod (14) is installed between the two limiting frames (9). A bushing (11) is fixedly installed at the top of the connecting rod (14). A sleeve shaft (12) is installed inside the bushing (11). Both ends of the sleeve shaft (12) extend into the corresponding sliding ports (13) to form sliding supports. A rubber block (16) is fixedly installed at the bottom of the connecting rod (14). The round tube workpiece (27) is supported by the rubber block (16).

2. The guide assembly for round tube processing according to claim 1, characterized in that, A threaded rod (18) is installed on the limiting frame (9) inside the sliding port (13). A motor (19) is installed on the fixing frame (26) at one end of the threaded rod (18). The output end of the motor (19) is fixedly connected to the threaded rod (18). A threaded hole (15) is opened on the sleeve shaft (12) inside the sliding port (13). The threaded rod (18) is threadedly connected to the threaded hole (15).

3. A guide assembly for processing round tubes according to claim 2, characterized in that, A slider (20) is installed between the two limiting frames (9). The slider (20) has a slot (22) reserved at both ends corresponding to the positions of the limiting frames (9). The slot (22) is locked onto the limiting frame (9) at the corresponding position to form a sliding support for the slider (20). A spring (21) is fixedly installed on the bottom surface of the slider (20) and the connecting rod (14) at the corresponding position.

4. A circular tube machining guide assembly according to claim 3, characterized in that, The slider (20) at the position of the bayonet (22) has a ball cavity (23), and a rolling steel ball (24) is installed in the ball cavity (23). A groove (25) is provided on the limiting frame (9) corresponding to the position of the steel ball (24), and part of the steel ball (24) abuts into the groove (25).

5. A circular tube machining guide assembly according to claim 1, characterized in that, A bucket-shaped cover (2) is fixedly installed on the front end of the guide tube (1) in the opening direction of the connecting rod (14).

6. A circular tube machining guide assembly according to claim 1, characterized in that, The rubber block (16) is columnar.

7. A circular tube machining guide assembly according to claim 6, characterized in that, The outer surface of the rubber block (16) is pre-set with dense hemispherical protrusions (17).

8. A guide assembly for round tube processing according to claim 1, characterized in that, A vertical shaft (3) is fixedly installed at the middle of the bottom of the guide tube (1). A fixed base (5) is installed directly below the vertical shaft (3). The vertical shaft (3) is installed on the top of the fixed base (5) through a load-bearing bearing (4). A plurality of evenly spaced convex teeth (6) are installed on the vertical shaft (3) above the load-bearing bearing (4). A gear (7) is installed on the outside of the load-bearing bearing (4) at the position of the convex teeth (6). The gear (7) meshes with the convex teeth (6). A motor (8) is installed on the fixed base (5) at the position corresponding to the gear (7). The output end of the motor (8) is fixedly connected to the gear (7).

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