A laser pipe cutting machine clamping mechanism

Abstract

The utility model discloses a kind of laser pipe cutting machine clamping mechanisms, relate to pipe fitting clamping technical field.The utility model includes base, and the base top is fixedly connected with mounting plate;Outer clamping assembly is arranged in the mounting plate one side, and outer clamping assembly includes the fixed box of fixed connection in the mounting plate one side, the tooth ring of setting in the fixed box inner cavity, the driving wheel of fixed connection in the inner side of the tooth ring, the driving block of setting in the fixed box inner cavity, with the first clamping block of fixed connection in the driving block one side.The utility model is through the synchronous action of outer clamping assembly and inner support subassembly, forms inside and outside two-way clamping force, makes pipe fitting stress uniform, effectively avoids the displacement caused by thin-walled pipe fitting deformation and cutting vibration, significantly improves processing precision, and the radial contraction of outer clamping driving wheel and the synchronous expansion of inner support clamping block are realized by mechanical linkage, can adapt to the clamping demand of different diameter pipe fitting, and three-point clamping design ensures concentricity.

Description

Technical Field

[0001] This utility model belongs to the field of pipe clamping technology, and in particular relates to a clamping mechanism for a laser pipe cutting machine. Background Technology

[0002] As a core piece of equipment in the modern precision machining field, the technological development of laser tube cutting machines stems from the need for innovation in traditional mechanical cutting processes. With the widespread application of laser cutting technology in the metal processing industry, higher requirements are placed on the stability of clamping devices to improve the accuracy and efficiency of tube cutting.

[0003] Traditional pipe clamping mechanisms often employ a single external clamping or internal support structure. When processing thin-walled pipes, such structures are prone to deformation due to concentrated clamping force, and cannot meet the stability requirements of different pipe diameters. During the cutting process, uneven stress distribution can easily lead to pipe deformation, which directly affects the quality of the cut surface.

[0004] To address these issues, we provide a laser tube cutting machine clamping mechanism. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping mechanism for a laser tube cutting machine. By cooperating with the outer clamping component and the inner support component, it solves the problems of insufficient stability and poor adaptability of the existing laser tube cutting machine clamping mechanism.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a clamping mechanism for a laser tube cutting machine, comprising a base, with a mounting plate fixedly connected to the top of the base; an external clamping assembly is provided on one side of the mounting plate, the external clamping assembly including a fixed box fixedly connected to one side of the mounting plate, a toothed ring disposed in the inner cavity of the fixed box, a drive wheel fixedly connected to the inner side of the toothed ring, a drive block disposed in the inner cavity of the fixed box, and a first locking block fixedly connected to one side of the drive block; an internal support assembly is provided on one side of the mounting plate, the internal support assembly including a fixed cylinder fixedly connected to the inner wall of the mounting plate, a threaded rod movably connected to the inner cavity of the fixed cylinder through a bearing seat, a threaded sleeve threadedly connected to the surface of the threaded rod, a support rod movably connected to the surface of the threaded sleeve, a baffle movably connected to the other end of the support rod, and a second locking block fixedly connected to the other side of the baffle.

[0008] The present invention is further configured such that a drive motor is fixedly connected to one side of the base, and a gear is fixedly connected to the surface of the output shaft of the drive motor. The gear meshes with the toothed ring. The drive motor is mounted on the side wall of the base through a flange. The output shaft of the drive motor drives the toothed ring to rotate through the gear, thereby realizing the opening and closing control of the outer clamping assembly.

[0009] The present invention is further configured such that a first synchronous pulley is fixedly connected to the surface of the output shaft of the drive motor, and a second synchronous pulley is connected to the surface of the first synchronous pulley via a synchronous belt. The shaft center of the second synchronous pulley is fixedly connected to the surface of the threaded rod. The mechanical linkage between the external clamping rotation and the internal support linear motion is realized through the synchronous belt. When the drive motor starts, the gear drives the toothed ring to rotate, and at the same time, the threaded rod rotates synchronously through the synchronous belt, ensuring the timing matching of the internal and external clamping actions.

[0010] The present invention is further configured such that a spring is sleeved on the surface of the first clamping block, one end of the spring is fixedly connected to one side of the driving block, and the other end of the spring is fixedly connected to the inner cavity of the fixed box. The spring provides buffer damping when the driving block moves radially to prevent clamping overload, and at the same time, the spring acts on the driving block to facilitate its reset.

[0011] The present invention is further configured such that a limiting rod is slidably connected to the surface of the baffle, a limiting block is fixedly connected to one end of the limiting rod, and the other end of the limiting rod is fixedly connected to the inner cavity of the fixed cylinder. The limiting rod is clearance-fitted with the guide hole of the baffle, and the limiting block restricts the axial travel of the baffle to ensure the coaxiality of the inner support assembly during expansion.

[0012] The present invention is further configured such that a control button is fixedly connected to the top of the base, and the output end of the control button is electrically connected to the input end of the drive motor.

[0013] The present invention is further configured such that there are three of each of the first and second locking blocks, and a rubber block is fixedly connected to one end of each of the first and second locking blocks. The limiting rod is in clearance fit with the guide hole of the baffle, and the limiting block restricts the axial travel of the baffle to ensure the coaxiality of the inner support assembly when it expands.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model forms a bidirectional clamping force by synchronously operating the outer clamping component and the inner support component, so that the pipe is subjected to uniform force, effectively avoiding deformation of thin-walled pipe and displacement caused by cutting vibration, and significantly improving processing accuracy. The radial contraction of the outer clamping drive wheel and the synchronous expansion of the inner support block are achieved through mechanical linkage, which can adapt to the clamping requirements of pipes with different diameters, and the three-point clamping design ensures concentricity.

[0016] 2. This utility model adopts a gear and toothed ring transmission and synchronous belt linkage structure to synchronize the rotation of the outer clamp and the linear motion of the inner support, simplifying the operation process and improving clamping efficiency. The spring buffer design can absorb the impact force during the clamping process and prevent damage to the surface of the pipe due to excessive clamping. The cooperation between the limit rod and the limit block constrains the stroke of the inner support, ensuring the safe and reliable operation of the mechanism.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a clamping mechanism for a laser tube cutting machine.

[0020] Figure 2 This is a left view of a clamping mechanism for a laser tube cutting machine.

[0021] Figure 3 This is a cross-sectional view of the fixed box in the clamping mechanism of a laser tube cutting machine.

[0022] Figure 4 This is a diagram showing the fit between a toothed ring and a gear in a clamping mechanism of a laser tube cutting machine.

[0023] Figure 5 This is a diagram showing the fit between a threaded sleeve and a support rod in a clamping mechanism of a laser tube cutting machine.

[0024] In the attached diagram: 1. Base; 2. Mounting plate; 3. Fixing box; 4. Toothed ring; 5. Drive wheel; 6. Drive block; 7. First locking block; 8. Fixing cylinder; 9. Threaded rod; 10. Threaded sleeve; 11. Support rod; 12. Baffle; 13. Second locking block; 14. Drive motor; 15. Gear; 16. First synchronous pulley; 17. Second synchronous pulley; 18. Spring; 19. Limit rod; 20. Limit block; 21. Control button; 22. Rubber block. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5This utility model is a clamping mechanism for a laser tube cutting machine, including a base 1, with a mounting plate 2 fixedly connected to the top of the base 1; an external clamping assembly is provided on one side of the mounting plate 2, the external clamping assembly including a fixed box 3 fixedly connected to one side of the mounting plate 2, a toothed ring 4 disposed in the inner cavity of the fixed box 3, a drive wheel 5 fixedly connected to the inner side of the toothed ring 4, a drive block 6 disposed in the inner cavity of the fixed box 3, and a first locking block 7 fixedly connected to one side of the drive block 6; an internal support assembly is provided on one side of the mounting plate 2, the internal support assembly including a fixed cylinder 8 fixedly connected to the inner wall of the mounting plate 2, a threaded rod 9 movably connected to the inner cavity of the fixed cylinder 8 through a bearing seat, a threaded sleeve 10 threadedly connected to the surface of the threaded rod 9, a support rod 11 movably connected to the surface of the threaded sleeve 10, a baffle 12 movably connected to the other end of the support rod 11, and a second locking block 13 fixedly connected to the other side of the baffle 12.

[0028] Further details: Mounting plate 2 is perpendicular to the plane of base 1; toothed ring 4 is rotatably connected to the inner wall of fixed box 3 via bearings; three drive wheels 5 are evenly distributed around the toothed ring 4; drive blocks 6 are radially sliding wedge blocks; the three drive blocks 6 are evenly distributed around the fixed box 3 at 120 degrees; the first locking block 7 is slidably connected to the drive block 6; the three locking claws of the ring array move synchronously radially through the rack and pinion transmission of gear 15; the fixing cylinder 8 of the inner support assembly is coaxially set in the central through hole of mounting plate 2; three sets of support rods 11 are radially hinged to the conical surface of threaded sleeve 10; the fixing cylinder 8 extends through to one side of mounting plate 2; the rotational motion is converted into linear motion through the threaded transmission, realizing the synchronous radial expansion of the three support points.

[0029] Example 2

[0030] Please see Figures 1-5 Based on embodiment 1, a drive motor 14 is fixedly connected to one side of the base 1. A gear 15 is fixedly connected to the surface of the output shaft of the drive motor 14. The gear 15 meshes with the toothed ring 4. A first synchronous pulley 16 is fixedly connected to the surface of the output shaft of the drive motor 14. A second synchronous pulley 17 is connected to the surface of the first synchronous pulley 16 via a synchronous belt. The shaft of the second synchronous pulley 17 is fixedly connected to the surface of the threaded rod 9. A spring 18 is sleeved on the surface of the first locking block 7. One end of the spring 18 is fixedly connected to one side of the drive block 6. The other end of the spring 18 is fixedly connected to the inner cavity of the fixed box 3. A limit rod 19 is slidably connected to the surface of the baffle 12. A limit block 20 is fixedly connected to one end of the limit rod 19. The other end of the limit rod 19 is fixedly connected to the inner cavity of the fixed cylinder 8. A control button 21 is fixedly connected to the top of the base 1. The output end of the control button 21 is electrically connected to the input end of the drive motor 14. There are three first locking blocks 7 and three second locking blocks 13. A rubber block 22 is fixedly connected to one end of each of the first locking blocks 7 and the second locking blocks 13.

[0031] Further details: The drive motor 14 is mounted on the side wall of the base 1 via a flange. The output shaft of the drive motor 14 drives the toothed ring 4 to rotate via the gear 15, thereby controlling the opening and closing of the outer clamping assembly. The mechanical linkage between the rotation of the outer clamp and the linear motion of the inner support is achieved via a synchronous belt. When the drive motor 14 starts, the gear 15 drives the toothed ring 4 to rotate, and the threaded rod 9 rotates synchronously via the synchronous belt, ensuring the timing matching of the inner and outer clamping actions. The spring 18 provides buffer damping when the drive block 6 moves radially to prevent clamping overload. At the same time, the spring 18 acts on the drive block 6 to facilitate its reset. The limit rod 19 is clearance-fitted with the guide hole of the baffle 12. The limit block 20 restricts the axial travel of the baffle 12 to ensure the coaxiality of the inner support assembly when it expands. The first clamping block 7 and the second clamping block 13 are arranged at the same angle so that the inner and outer contact points are on the same axis, ensuring the clamping effect. The rubber block 22 gives the clamping blocks an anti-scratch function.

[0032] The working principle of this utility model is as follows: when the pipe is inserted into the fixed cylinder 8, the control button 21 is triggered to start the drive motor 14. The drive motor 14 drives the toothed ring 4 to rotate counterclockwise through the gear 15, which drives the three drive wheels 5 to retract radially, so that the drive block 6 pushes the first clamping block 7 to clamp the outer wall of the pipe. Simultaneously, the drive motor 14 drives the threaded rod 9 to rotate through the synchronous belt, the threaded sleeve 10 is pushed axially, and the support rod 11 pushes the baffle 12 to drive the second clamping block 13 to expand radially, so as to achieve three-point support of the inner wall.

[0033] Spring 18 provides buffer damping when the drive block 6 moves radially to prevent clamping overload. At the same time, the action of spring 18 on drive block 6 facilitates its reset. Inner support limit rod 19 constrains the linear movement of baffle 12 to ensure expansion concentricity. Limit block 20 mechanically limits to prevent excessive contraction and damage to the mechanism. The inner and outer clamping forces are kept in dynamic balance through electromechanical linkage to avoid displacement caused by cutting vibration. After processing, drive motor 14 reverses, outer clamping assembly expands and resets, inner support assembly contracts, and tube can be axially pulled out.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A clamping mechanism for a laser tube cutting machine, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the mounting plate (2); An external clamping assembly is provided on one side of the mounting plate (2). The external clamping assembly includes a fixed box (3) fixedly connected to one side of the mounting plate (2), a toothed ring (4) disposed in the inner cavity of the fixed box (3), a drive wheel (5) fixedly connected to the inner side of the toothed ring (4), a drive block (6) disposed in the inner cavity of the fixed box (3), and a first locking block (7) fixedly connected to one side of the drive block (6). An inner support assembly is provided on one side of the mounting plate (2). The inner support assembly includes a fixed cylinder (8) fixedly connected to the inner wall of the mounting plate (2), a threaded rod (9) movably connected to the inner cavity of the fixed cylinder (8) through a bearing seat, a threaded sleeve (10) threadedly connected to the surface of the threaded rod (9), a support rod (11) movably connected to the surface of the threaded sleeve (10), a baffle (12) movably connected to the other end of the support rod (11), and a second locking block (13) fixedly connected to the other side of the baffle (12).

2. The clamping mechanism for a laser tube cutting machine according to claim 1, characterized in that: A drive motor (14) is fixedly connected to one side of the base (1), and a gear (15) is fixedly connected to the surface of the output shaft of the drive motor (14), and the gear (15) meshes with the toothed ring (4).

3. The clamping mechanism for a laser tube cutting machine according to claim 2, characterized in that: The output shaft of the drive motor (14) is fixedly connected to a first synchronous pulley (16), and the surface of the first synchronous pulley (16) is connected to a second synchronous pulley (17) via a synchronous belt drive. The shaft center of the second synchronous pulley (17) is fixedly connected to the surface of the threaded rod (9).

4. The clamping mechanism for a laser tube cutting machine according to claim 1, characterized in that: A spring (18) is fitted on the surface of the first card block (7). One end of the spring (18) is fixedly connected to one side of the drive block (6), and the other end of the spring (18) is fixedly connected to the inner cavity of the fixed box (3).

5. The clamping mechanism for a laser tube cutting machine according to claim 1, characterized in that: The baffle (12) is slidably connected to a limiting rod (19), one end of the limiting rod (19) is fixedly connected to a limiting block (20), and the other end of the limiting rod (19) is fixedly connected to the inner cavity of the fixed cylinder (8).

6. The clamping mechanism for a laser tube cutting machine according to claim 2, characterized in that: A control button (21) is fixedly connected to the top of the base (1), and the output end of the control button (21) is electrically connected to the input end of the drive motor (14).

7. The clamping mechanism for a laser tube cutting machine according to claim 1, characterized in that: There are three of each of the first card block (7) and the second card block (13), and a rubber block (22) is fixedly connected to one end of each of the first card block (7) and the second card block (13).

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