Pipe body limiting fixture of laser pipe cutting machine

Abstract

The utility model discloses a kind of pipe body limiting fixture of laser pipe cutting machine, including bed, chuck and support beam, a pair of mounting blocks are provided on bed, clamping mechanism is provided between two mounting blocks, clamping mechanism includes two clamping jaws, clamping jaw is composed of two symmetrical trapezoidal clamping pieces, the included angle of inclined plane between two trapezoidal clamping pieces is right angle, connecting plate is embedded in both sides of trapezoidal clamping piece and is connected by screw, screw nut is installed in bottom position between two connecting plates, the bottom of two clamping jaws is equipped with screw rod, motor is equipped at one end of screw rod and is connected, the other end of screw rod is connected with mounting block by pivot, mounting block is connected with bed by sliding block and slide rail, motor is installed in mounting block inner side, the bottom of trapezoidal clamping piece located below is connected with two mounting blocks by sliding block and slide rail;The utility model has the advantages of simple structure, small volume, strong adaptability to pipe, high positioning accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of laser tube cutting machine technology, and in particular relates to a tube body limiting clamp for a laser tube cutting machine. Background Technology

[0002] Laser tube cutting machines require front and rear chucks to clamp and position the tube during tube processing. Traditional clamping devices often employ single-point clamping or symmetrical double-jaw structures, which suffer from uneven clamping force distribution and easy rotation and displacement of the tube. Existing technologies, such as three-chamber rear chucks, can achieve multi-directional fixation, but their complex structure and large duty cycle affect the compactness of the equipment. Conventional jaw designs are not adaptable to irregularly shaped tubes, rigid clamping can easily cause indentations on the tube surface, and the lack of self-centering function limits positioning accuracy. In addition, some clamping mechanisms rely on multiple sets of drive units for synchronous control, resulting in low transmission efficiency and high maintenance costs.

[0003] Therefore, there is an urgent need for a compact, stable clamping fixture that can adapt to different pipe diameters to improve the accuracy and efficiency of laser cutting. Utility Model Content

[0004] The purpose of this utility model is to provide a tube body limiting clamp for laser tube cutting machines to solve the problems of complex structure, large duty cycle, insufficient adaptability to tube materials, and poor positioning accuracy of common tube body clamping devices.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes a bed, a chuck, and a support beam. The bed is provided with a pair of mounting blocks, and a clamping mechanism is provided between the two mounting blocks. The clamping mechanism includes two jaws, each jaw consisting of two symmetrical trapezoidal clamping members. The angle between the inclined planes of the two trapezoidal clamping members is a right angle. Connecting plates are embedded on both sides of each trapezoidal clamping member and connected by screws. A lead screw nut is installed between the two connecting plates near the bottom. A lead screw is provided at the bottom of the two jaws. One end of the lead screw is equipped with a motor and connected to it, and the other end of the lead screw is connected to the mounting block through a rotating shaft.

[0006] Furthermore, the mounting block is connected to the bed via a slider and a slide rail, and the motor is mounted inside the mounting block.

[0007] Furthermore, the bottom of the trapezoidal clamp located below is connected to the two mounting blocks via sliders and slide rails.

[0008] Furthermore, the trapezoidal clamping member has a hollow structure that extends through both sides, and the trapezoidal clamping member has a number of anti-slip grooves arranged on its inclined surface.

[0009] Furthermore, the lead screw surface is provided with two sections of threads in opposite directions, extending to both ends with the midpoint as the boundary, and the two lead screw nuts are respectively sleeved on the outside of the threads at both ends.

[0010] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0011] 1. In this utility model, the four-point synchronous clamping function is achieved through the cooperation design of symmetrical trapezoidal clamping parts and bidirectional screw. The two sets of jaws move towards each other along the slide rail under the drive of the motor. The four trapezoidal clamping parts form a self-centering clamping space through right-angled inclined planes, which can adapt to the clamping requirements of pipes with different diameters. The screw transmission mechanism ensures the uniform transmission of clamping force, effectively improving clamping stability and positioning accuracy. At the same time, the overall structure is compact and occupies little space, making it suitable for pipe fixing requirements in narrow working areas.

[0012] 2. In this utility model, the hollow trapezoidal clamping component and anti-slip groove structure innovatively improve the clamping efficiency. The hollow structure design with both sides running through it significantly reduces the mass of moving parts while ensuring structural strength, thereby improving the response speed of the clamping mechanism. The anti-slip grooves distributed in an array on the trapezoidal inclined surface form a multi-point contact limiting structure, which can increase the contact friction of the tube body to prevent rotational displacement and avoid indentations on the tube surface caused by rigid clamping. It is suitable for high-precision cutting process requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the present invention;

[0015] Figure 3 This is an exploded view of the gripper structure of this utility model.

[0016] In the diagram: 1-bed, 2-mounting block, 3-clamping mechanism;

[0017] 31-Gripper, 32-Lead screw, 33-Motor;

[0018] 311-Trapezoidal clamping component, 312-Connecting plate, 313-Screw nut, 314-Anti-slip groove. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Combination Figures 1 to 3The laser tube cutting machine tube body limiting fixture shown includes a bed 1, a chuck and a support beam. The bed 1 is provided with a pair of mounting blocks 2, and a clamping mechanism 3 is provided between the two mounting blocks 2. The clamping mechanism 3 includes two jaws 31, each jaw 31 is composed of two symmetrical trapezoidal clamping parts 311, and the included angle of the inclined planes between the two trapezoidal clamping parts 311 is a right angle. Connecting plates 312 are embedded on both sides of the trapezoidal clamping parts 311 and are connected by screws. A lead screw nut 313 is installed between the two connecting plates 312 near the bottom. A lead screw 32 is provided at the bottom of the two jaws 31. A motor 33 is provided at one end of the lead screw 32 and connected to it. The other end of the lead screw 32 is connected to the mounting block 2 through a rotating shaft.

[0021] Mounting block 2 is connected to bed 1 via a slider and slide rail, and motor 33 is mounted inside mounting block 2.

[0022] The bottom of the trapezoidal clamp 311 located below is connected to the two mounting blocks 2 via sliders and slide rails.

[0023] The trapezoidal clamp 311 has a hollow structure that runs through both sides, and the trapezoidal clamp 311 has several anti-slip grooves 314 arranged on the inclined surface.

[0024] The lead screw 32 has two threads in opposite directions on its surface, extending to both ends with the midpoint as the boundary. Two lead screw nuts 313 are respectively fitted on the outside of the threads at both ends.

[0025] Working principle: When in use, the output end of the motor 33 drives the lead screw 32 to rotate. The lead screw nut 313 moves the two opposing jaws 31 along the slide rail toward the middle tube body. The inclined surfaces between the four trapezoidal clamping parts 311 form a clamping space for the tube body. The anti-slip groove 314 limits the tube body to prevent it from rotating arbitrarily. The hollow trapezoidal clamping parts 311 reduce their weight and increase the travel speed. The modular structure facilitates disassembly and maintenance of vulnerable parts.

[0026] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] 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 tube body limiting fixture for a laser tube cutting machine, comprising a bed (1), a chuck, and a support beam, characterized in that: The bed (1) is provided with a pair of mounting blocks (2), and a clamping mechanism (3) is provided between the two mounting blocks (2). The clamping mechanism (3) includes two jaws (31). The jaws (31) are composed of two symmetrical trapezoidal clamping parts (311) on the upper and lower sides. The angle between the inclined planes of the two trapezoidal clamping parts (311) is a right angle. Both sides of the trapezoidal clamping parts (311) are embedded with connecting plates (312) and connected by screws. A screw nut (313) is installed between the two connecting plates (312) near the bottom. A screw (32) is provided at the bottom of the two jaws (31). One end of the screw (32) is provided with a motor (33) and connected to it. The other end of the screw (32) is connected to the mounting block (2) through a rotating shaft.

2. The tube body limiting clamp for a laser tube cutting machine according to claim 1, characterized in that: The mounting block (2) is connected to the bed (1) via a slider and a slide rail, and the motor (33) is installed inside the mounting block (2).

3. The tube body limiting clamp for a laser tube cutting machine according to claim 2, characterized in that: The bottom of the trapezoidal clamp (311) located below is connected to the two mounting blocks (2) via sliders and slide rails.

4. The tube body limiting clamp for a laser tube cutting machine according to claim 3, characterized in that: The trapezoidal clamp (311) has a hollow structure that runs through both sides, and the trapezoidal clamp (311) has a number of anti-slip grooves (314) arranged on its inclined surface.

5. A tube body limiting clamp for a laser tube cutting machine according to claim 4, characterized in that: The lead screw (32) has two threads in opposite directions on its surface, extending to both ends with the midpoint as the boundary, and the two lead screw nuts (313) are respectively fitted on the outside of the threads at both ends.

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