A moving positioning module for a fuel pipe marking machine

By improving the moving positioning module of the fuel pipe marking machine, and adopting a marking machine moving device and limit block design with threaded rod and guide rod cooperation, the problems of marking position deviation, fuel pipe clamping looseness and asynchronous rotation were solved, achieving high precision and stable marking effect.

CN224940825UActive Publication Date: 2026-11-06SHANGHAI MORIOKA MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202522637139.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-11-06
Estimated Expiration
2035-12-12

AI Technical Summary

Technical Problem

Existing fuel pipe marking equipment suffers from poor accuracy of the moving positioning mechanism, resulting in marking position deviations. Furthermore, the fuel pipe may become loose during clamping or rotate asynchronously, affecting the marking effect.

Method used

The marking machine moving device uses a threaded rod and a guide rod in combination, and is fixed by a sliding plate limit and a locking hole on the bottom plate of the frame device to ensure the positioning accuracy of the marking machine. The limiting block design of the first and second fuel pipe rotating devices increases the contact area with the fuel pipe and achieves synchronous rotation through hydraulic rod and motor drive.

Benefits of technology

It significantly improves the positioning accuracy and stability of the marking machine, avoids marking position deviation and fuel pipe loosening, and ensures the quality and consistency of marking.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a moving and positioning module for a fuel pipe marking machine, including a device body. The device body includes a frame device, a sliding plate, a marking machine moving device, a first fuel pipe rotating device, and a second fuel pipe rotating device. The frame device has a U-shaped structure. The sliding plate is installed on the top of the frame device. The marking machine moving device is installed inside the top of the frame device and below the sliding plate. The first fuel pipe rotating device is installed inside the left end of the frame device, and the second fuel pipe rotating device is installed inside the right end of the frame device. The marking machine moving device includes a sliding seat, a marking machine, a threaded rod, a guide rod, and a first motor. The threaded rod and the guide rod are both installed inside the top of the frame device. This device can significantly improve the moving and positioning accuracy of the marking machine, effectively solve the marking position deviation problem of existing equipment, and achieve synchronous and centered rotation of both ends of the fuel pipe, ensuring the marking effect.
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Description

Technical Field

[0001] This utility model relates to the field of fuel pipe marking technology, specifically a fuel pipe marking machine mobile positioning module. Background Technology

[0002] The fuel line is a crucial component of a vehicle's fuel system, primarily responsible for transporting fuel from the fuel tank to the engine. It is typically made of pressure-resistant and corrosion-resistant rubber, polyurethane, or plastic materials. Its working principle involves the fuel being pressurized by the fuel pump, creating pressure within the line, and then being injected through the injector solenoid valve into the intake manifold for combustion. It is usually quite long and thin, and is typically concealed within the vehicle chassis or engine compartment. As a critical channel connecting the fuel pump and fuel distribution lines, the fuel line plays a vital role in the fuel supply system.

[0003] Existing fuel pipe marking equipment suffers from poor accuracy of the moving positioning mechanism, resulting in marking position deviation. Furthermore, existing fuel pipe equipment may become loose when clamping the fuel pipe or rotate asynchronously, affecting the marking effect.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a moving positioning module for a fuel pipe marking machine, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a moving and positioning module for a fuel pipe marking machine, comprising a device body, the device body including a frame device, a sliding plate, a marking machine moving device, a first fuel pipe rotating device, and a second fuel pipe rotating device. The frame device has a U-shaped structure. The sliding plate is installed on the top of the frame device. The marking machine moving device is installed inside the top of the frame device and below the sliding plate. The first fuel pipe rotating device is installed inside the left end of the frame device, and the second fuel pipe rotating device is installed inside the right end of the frame device. The marking machine moving device includes a sliding seat, a marking machine device, a threaded rod, a guide rod, and a first motor. The threaded rod and the guide rod are both installed inside the top of the frame device. The guide rod is provided in a set and is symmetrically distributed. The sliding seat is sleeved on the threaded rod and the guide rod, and the top of the sliding seat is attached to the bottom of the sliding plate. The sliding seat has a threaded drive hole and a set of guide holes on its side. The first motor is installed on the top right side of the frame device, and the drive end of the first motor is connected to one end of the threaded rod. The marking machine device is installed at the bottom of the sliding seat.

[0009] The first fuel pipe rotating device includes a first mounting block, a first limiting block, a second motor, and a hydraulic rod. The hydraulic rod is installed at the left end of the frame device, and the driving end of the hydraulic rod is connected to the outer end of the first mounting block. The first limiting block is located inside the first mounting block. The second motor is installed at the outer end of the first mounting block, and the driving end of the second motor is connected to the outer end of the first limiting block. A pipe limiting groove is formed on the surface of the first limiting block, and the bottom of the pipe limiting groove has an arc-shaped structure.

[0010] The second fuel pipe rotating device includes a second mounting block, a bidirectional rotating shaft, and a second limiting block. The bidirectional rotating shaft is installed at the inner end of the second mounting block, and the second limiting block is installed at the other end of the bidirectional rotating shaft. The surface of the second limiting block is also provided with a pipe limiting groove, and the surface of the second mounting block is provided with several sets of mounting holes.

[0011] The frame device includes a base plate, a first support plate, and a second support plate. The first support plate is welded to the top left end of the base plate, and the second support plate is welded to the top right end of the base plate. The bottom of the base plate is provided with a rubber gasket, and the surface of the base plate is provided with several sets of locking holes.

[0012] (III) Beneficial Effects

[0013] This utility model provides a moving positioning module for a fuel pipe marking machine. It has the following advantages:

[0014] This solution presents a mobile positioning module for a fuel pipe marking machine. In terms of mobile positioning, it employs a moving device driven by a first motor, utilizing a threaded rod and guide rod. Combined with a sliding plate limiter and locking holes in the base plate of the frame device, this significantly improves the mobile positioning accuracy of the marking machine, effectively solving the marking position deviation problem of existing equipment. Regarding fuel pipe clamping, both the first and second fuel pipe rotating devices have arc-shaped pipe-body limiting grooves on their limiting blocks, increasing the contact area with the fuel pipe and ensuring a firm clamping, preventing the fuel pipe from loosening during marking. For rotational synchronization, the first limiting block is driven by a second motor, and the second limiting block is driven by a bidirectional rotating shaft. With the help of a hydraulic rod adjusting the position of the first limiting block, the fuel pipe rotates synchronously and centered at both ends, ensuring effective marking. In summary, this solution comprehensively solves the problems of poor accuracy in the mobile positioning mechanism, loose fuel pipe clamping, and asynchronous rotation in existing fuel pipe marking equipment, significantly improving marking quality and stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the marking machine moving device of this utility model;

[0017] Figure 3This is a schematic diagram of the structure of the first fuel pipe rotating device and the second fuel pipe rotating device of this utility model.

[0018] In the diagram, 1. Device body; 2. Frame device; 3. Sliding plate; 4. Marking machine moving device; 5. First fuel pipe rotating device; 6. Second fuel pipe rotating device; 7. Sliding seat; 8. Marking machine equipment; 9. Threaded rod; 10. Guide rod; 11. First motor; 12. Threaded drive hole; 13. Guide hole; 14. First mounting block; 15. First limiting block; 16. Second motor; 17. Hydraulic rod; 18. Pipe body limiting groove; 19. Second mounting block; 20. Bidirectional rotating shaft; 21. Second limiting block; 22. Mounting hole; 23. Base plate; 24. First support plate; 25. Second support plate; 26. Adhesive rubber gasket; 27. Locking hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution:

[0021] Example 1

[0022] The problems to be solved are as follows: the existing fuel pipe marking equipment suffers from poor accuracy of the moving positioning mechanism, resulting in marking position deviation. In addition, the existing fuel pipe equipment may become loose when clamping the fuel pipe or rotate asynchronously, affecting the marking effect.

[0023] The solution is as follows: A fuel pipe marking machine moving and positioning module, including a device body 1, the device body 1 including a frame device 2, a sliding plate 3, a marking machine moving device 4, a first fuel pipe rotating device 5, and a second fuel pipe rotating device 6. The frame device 2 has a U-shaped structure. The sliding plate 3 is installed on the top of the frame device 2. The marking machine moving device 4 is installed inside the top of the frame device 2 and below the sliding plate 3. The first fuel pipe rotating device 5 is installed inside the left end of the frame device 2. The second fuel pipe rotating device 6 is installed inside the right end of the frame device 2. The marking machine moving device 4... The device includes a sliding seat 7, an engraving machine 8, a threaded rod 9, a guide rod 10, and a first motor 11. The threaded rod 9 and the guide rod 10 are both installed at the top of the inside of the frame device 2. The guide rod 10 is provided in a set and is distributed symmetrically. The sliding seat 7 is sleeved on the threaded rod 9 and the guide rod 10, and the top of the sliding seat 7 is attached to the bottom of the sliding plate 3. The sliding seat 7 has a threaded drive hole 12 and a set of guide holes 13 on its side. The first motor 11 is installed at the top right side of the frame device 2. The drive end of the first motor 11 is connected to one end of the threaded rod 9. The engraving machine 8 is installed at the bottom of the sliding seat 7.

[0024] Analysis of the above content: After receiving the control signal, the first motor 11 starts, and its output shaft drives the threaded rod 9 to rotate; the rotational motion of the threaded rod 9 is converted into the linear motion of the sliding seat 7 along the axis of the threaded rod 9 through the threaded drive hole 12 on the sliding seat 7; two sets of symmetrically distributed guide rods 10 pass through the guide holes 13 of the sliding seat 7, which restricts the rotational freedom of the sliding seat 7 and ensures that it can only make smooth and precise linear movements along the threaded rod 9 and the guide rods 10. Meanwhile, the top of the sliding seat 7 fits snugly against the bottom of the sliding plate 3, further enhancing stability and rigidity during movement. The marking machine 8 is fixed to the bottom of the sliding seat 7. As the sliding seat 7 moves, the marking machine 8 also moves to the preset marking start position and marks the fuel pipe below during movement or after reaching the designated position. When the equipment starts, the control system drives the first motor 11 to reverse, moving the marking machine 8 to the rightmost or leftmost mechanical origin position to complete initialization. Based on the position parameters to be marked on the fuel pipe, the control system calculates the distance the marking machine 8 needs to move and drives the first motor 11 (usually a servo motor or stepper motor) to rotate clockwise by the corresponding angle, precisely delivering the marking machine 8 to the target position. If axial movement marking (e.g., marking a spiral line or multiple lines of marking along the length) is required while the fuel pipe is rotating, the control system... The movement of the first motor 11 and the second motor 16 is coordinated to match the moving speed of the marking machine 8 with the rotation speed of the fuel pipe. The combination structure of "threaded rod 9 + guide rod 10," along with the high-precision first motor 11 (such as a servo motor), enables micron-level or even higher precision position control of the marking machine 8, effectively solving the problem of marking position deviation. The design of multiple guide rods 10 ensures that the sliding seat 7 remains stable even during high-speed movement, reducing vibration during marking and improving marking quality. The top of the sliding seat 7 fits against the sliding plate 3, forming a structure similar to a "sliding guide rail," enhancing the rigidity of the entire marking machine moving device 4, enabling it to withstand the reaction force generated during marking and preventing deformation. The motor directly drives the threaded rod, resulting in a short transmission chain, reducing friction and inertia in intermediate links, and enabling rapid start-up, stopping, acceleration, and deceleration response of the marking machine 8.

[0025] Example 2:

[0026] Please see Figure 1-3This utility model provides a technical solution based on Embodiment 1: The first fuel pipe rotating device 5 includes a first mounting block 14, a first limiting block 15, a second motor 16, and a hydraulic rod 17. The hydraulic rod 17 is installed at the left end of the frame device 2, and the driving end of the hydraulic rod 17 is connected to the outer end of the first mounting block 14. The first limiting block 15 is located inside the first mounting block 14. The second motor 16 is installed at the outer end of the first mounting block 14, and the driving end of the second motor 16 is connected to the outer end of the first limiting block 15. A pipe limiting groove 18 is formed on the surface of the first limiting block 15, and the bottom of the pipe limiting groove 18 has an arc-shaped structure.

[0027] Analysis of the above: Driven by hydraulic oil, the piston rod of hydraulic rod 17 extends outward, pushing the entire first mounting block 14, second motor 16, and first limiting block 15 to the right (near the second fuel pipe rotating device 6); the arc-shaped tube limiting groove 18 on the first limiting block 15 contacts the left end of the fuel pipe to be processed. Hydraulic rod 17 continues to apply pressure until the fuel pipe is firmly clamped between the first limiting block 15 and the second limiting block 21. The arc-shaped groove design ensures the maximum contact area with the outer wall of the circular fuel pipe; the second motor 16 starts, and its output shaft directly drives the first limiting block 15 to rotate. Because there is sufficient friction between the first limiting block 15 and the fuel pipe, the rotational motion is transmitted to the fuel pipe, causing it to rotate as well. The hydraulic rod 17 provides a strong and stable clamping force, which, together with the arc-shaped pipe limiting groove 18, firmly fixes the fuel pipe, effectively preventing the marking from becoming blurry or misaligned due to workpiece loosening during the marking process. The arc-shaped pipe limiting groove 18 has an automatic centering function, ensuring that the axis of the fuel pipe coincides with the rotation axis of the first limiting block 15, thus improving rotational accuracy. By adjusting the stroke of the hydraulic rod 17, it can easily adapt to fuel pipes of different lengths, improving the versatility and flexibility of the equipment. The second motor 16 directly drives the fuel pipe, providing sufficient torque to maintain uniform rotation even under high marking resistance.

[0028] Example 3:

[0029] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: the second fuel pipe rotating device 6 includes a second mounting block 19, a bidirectional rotating shaft 20 and a second limiting block 21. The bidirectional rotating shaft 20 is installed at the inner end of the second mounting block 19, and the second limiting block 21 is installed at the other end of the bidirectional rotating shaft 20. The surface of the second limiting block 21 is also provided with a pipe limiting groove 18, and the surface of the second mounting block 19 is provided with a plurality of sets of mounting holes 22.

[0030] Analysis of the above: Unlike the first fuel pipe rotating device 5, this device itself does not provide active rotational power. When the first limiting block 15 drives the fuel pipe to rotate, the right end of the fuel pipe will drive the second limiting block 21 to rotate through friction. The second limiting block 21 is mounted on the second mounting block 19 via a bidirectional rotating shaft 20. The bidirectional rotating shaft 20 usually contains bearings or bushings, whose function is to convert the rotational motion of the second limiting block 21 into its own low-resistance rotation, ensuring that the fuel pipe can be smoothly driven to rotate, while avoiding torque loss or workpiece wear caused by friction at the fixed end. The second limiting block 21 is also provided with an arc-shaped pipe limiting groove 18, which works together with the first limiting block 15 to control the fuel pipe from both ends. The tube is centered and clamped, ensuring clamping stability and coaxiality of rotation. As a passive follower end, it eliminates the need for a motor and complex drive mechanism, resulting in a simpler structure, lower cost, and lower failure rate. The passive following method ensures that the rotation of both ends of the fuel tube is completely synchronized, avoiding workpiece twisting or deformation of the engraved spiral line caused by asynchronous driving forces at both ends, thus solving the problem of asynchronous rotation. The design of the bidirectional rotating shaft 20 transforms sliding friction into rolling friction (or sliding with a low coefficient of friction), greatly reducing friction and damage to the fuel tube end and ensuring the surface quality of the workpiece.

[0031] Example 4:

[0032] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: The frame device 2 includes a base plate 23, a first support plate 24 and a second support plate 25. The first support plate 24 is welded to the top left end of the base plate 23, and the second support plate 25 is welded to the top right end of the base plate 23. The bottom of the base plate 23 is provided with a rubber gasket 26, and the surface of the base plate 23 is provided with a plurality of locking holes 27.

[0033] Analysis of the above: Frame device 2 is the skeleton of the entire equipment, and all functional components (marking machine moving device 4, first fuel pipe rotating device 5, second fuel pipe rotating device 6) are directly or indirectly installed on it. Its robust structure provides a foundation for the precise installation and stable operation of each component; the first support plate 24 and the second support plate 25, as the upright plates on both sides, provide precise installation reference surfaces and support points for the threaded rods 9 and guide rods 10 of the first fuel pipe rotating device 5, the second fuel pipe rotating device 6, and the marking machine moving device 4, ensuring the parallelism and perpendicularity between the shaft systems; the base plate 23, through the locking holes 27 on its surface, uses anchor bolts or expansion bolts to firmly fix the entire device body 1 to the ground or workbench, preventing displacement or vibration during operation; the rubber gasket 26 at the bottom of the base plate 23 has certain elasticity and damping characteristics. It can absorb the vibration generated during equipment operation and reduce the impact of external vibration on the equipment. At the same time, the rubber gasket also helps to make fine adjustments during installation to keep the equipment level.

[0034] Working principle: During operation, the frame device 2 provides stable rigid support. The marking machine moving device 4 drives the threaded rod 9 to rotate with the first motor 11, which drives the sliding seat 7 to move precisely along the guide rod 10 and the sliding plate 3, enabling the marking machine device 8 to achieve high-precision positioning and solving the problem of marking position deviation. The hydraulic rod 17 of the first fuel pipe rotating device 5 pushes the first limit block 15 to cooperate with the second limit block 21 of the second fuel pipe rotating device 6, and the fuel pipe is firmly clamped by the arc-shaped pipe limiting groove 18. The second motor 16 drives the first limit block 15 to rotate, and the second limit block 21 follows through the bidirectional rotating shaft 20, so that the two ends of the fuel pipe rotate synchronously, avoiding the problems of loose clamping and asynchronous rotation, and finally achieving high precision and high stability effect of marking the fuel pipe.

[0035] The present invention comprises: 1. Device body; 2. Frame device; 3. Sliding plate; 4. Engraving machine moving device; 5. First fuel pipe rotating device; 6. Second fuel pipe rotating device; 7. Sliding seat; 8. Engraving machine equipment; 9. Threaded rod; 10. Guide rod; 11. First motor; 12. Threaded drive hole; 13. Guide hole; 14. First mounting block; 15. First limiting block; 16. Second motor; 17. Hydraulic rod; 18. Pipe body limiting groove; 19. Second mounting block; 20. Bidirectional rotating shaft; 21. Second limiting block; 22. Mounting hole; 23. Base plate; 24. First support plate; 25. Second support plate; 26. Adhesive rubber. Gasket; 27, locking hole. All components are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that the existing fuel pipe marking equipment has poor accuracy of the moving positioning mechanism, resulting in marking position deviation. In addition, the existing fuel pipe equipment may be loose when the fuel pipe is clamped or rotate asynchronously, affecting the marking effect. This utility model can greatly improve the moving positioning accuracy of the marking machine by combining the above components, effectively solve the marking position deviation problem of the existing equipment, and realize synchronous and centered rotation of both ends of the fuel pipe to ensure the marking effect.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A moving positioning module for a fuel pipe marking machine, characterized in that: The device includes a main body (1), which includes a frame device (2), a sliding plate (3), a coding machine moving device (4), a first fuel pipe rotating device (5), and a second fuel pipe rotating device (6). The frame device (2) has a U-shaped structure. The sliding plate (3) is installed on the top of the frame device (2). The coding machine moving device (4) is installed inside the top of the frame device (2) and below the sliding plate (3). The first fuel pipe rotating device (5) is installed inside the left end of the frame device (2), and the second fuel pipe rotating device (6) is installed inside the right end of the frame device (2). The marking machine moving device (4) includes a sliding seat (7), marking machine equipment (8), threaded rod (9), guide rod (10) and a first motor (11). The threaded rod (9) and guide rod (10) are both installed at the top inside the frame device (2). The guide rod (10) is provided in a set and is distributed symmetrically. The sliding seat (7) is sleeved on the threaded rod (9) and guide rod (10) and the top of the sliding seat (7) is attached to the bottom of the sliding plate (3). The sliding seat (7) has a threaded drive hole (12) and a set of guide holes (13) respectively on its side. The first motor (11) is installed on the top right side of the frame device (2). The drive end of the first motor (11) is connected to one end of the threaded rod (9). The marking machine equipment (8) is installed at the bottom of the sliding seat (7).

2. The moving positioning module for a fuel pipe marking machine according to claim 1, characterized in that: The first fuel pipe rotating device (5) includes a first mounting block (14), a first limiting block (15), a second motor (16), and a hydraulic rod (17). The hydraulic rod (17) is installed on the left end of the frame device (2). The driving end of the hydraulic rod (17) is connected to the outer end of the first mounting block (14). The first limiting block (15) is located inside the first mounting block (14). The second motor (16) is installed on the outer end of the first mounting block (14). The driving end of the second motor (16) is connected to the outer end of the first limiting block (15). The surface of the first limiting block (15) is provided with a pipe body limiting groove (18). The bottom of the pipe body limiting groove (18) has an arc-shaped structure.

3. The moving positioning module for a fuel pipe marking machine according to claim 1, characterized in that: The second fuel pipe rotating device (6) includes a second mounting block (19), a bidirectional rotating shaft (20), and a second limiting block (21). The bidirectional rotating shaft (20) is installed at the inner end of the second mounting block (19), and the second limiting block (21) is installed at the other end of the bidirectional rotating shaft (20). The surface of the second limiting block (21) is also provided with a pipe body limiting groove (18), and the surface of the second mounting block (19) is provided with a number of sets of mounting holes (22).

4. The moving positioning module for a fuel pipe marking machine according to claim 1, characterized in that: The frame device (2) includes a base plate (23), a first support plate (24) and a second support plate (25). The first support plate (24) is welded to the top left end of the base plate (23), and the second support plate (25) is welded to the top right end of the base plate (23). The bottom of the base plate (23) is provided with a rubber gasket (26), and the surface of the base plate (23) is provided with a number of locking holes (27).