A pipe cutting machine

Abstract

The utility model discloses a kind of pipe cutting machines, belong to pipe cutting equipment technical field, including support frame and the gantry support of setting in support frame front end, supporting frame is installed with centering clamping mechanism, centering clamping mechanism includes mounting seat, two groups of mutually opposing and horizontal sliding cooperation on mounting seat on guide block, driving block movably installed in mounting seat, and the driver of connecting driving block, the two sides of the driving block are respectively provided with the inclined guide surface of setting, two block The guide block is slidably fitted on guide surface, the driver drives driving block to move up and down;Utilize inclined guide surface to change the vertical motion of driving block into the horizontal relative motion of guide block, ensure that driving block generates constant driving force to guide block, ensure that two clamping block clamping force is constant, improve the centering effect to pipe and stability in processing process, meet the demand of high-precision high-efficiency cutting pipe.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting equipment technology, and in particular to a pipe cutting machine. Background Technology

[0002] Existing pipe cutting machines can be referenced from a pipe cutting machine disclosed in Chinese Patent Publication No. CN222999850U. This machine mainly includes a horizontal base frame, a fixed chuck assembly and a gantry support mounted on the top front end of the horizontal base frame, a laser cutting assembly mounted on the gantry support and movable along the X and Z axes, and a movable chuck assembly that can slide back and forth on the horizontal base frame. The horizontal base frame is equipped with a clamping support mechanism and a variable diameter wheel support mechanism. The clamping support mechanism is used to clamp the pipe and center it. Its working principle is that the clamping drive cylinder converts the vertical telescopic motion into the horizontal motion of the clamping blocks through the action of a pull rod, thereby achieving the clamping of the pipe.

[0003] However, this clamping support mechanism has the following problems in actual use: First, when clamping the pipe, the closer the pull rod is to a vertical position, the smaller the driving force generated, resulting in insufficient clamping force on the pipe and difficulty in achieving a good centering effect; Second, during the cutting process, due to insufficient clamping, the pipe may shake or vibrate, which seriously affects the cutting accuracy and quality and cannot meet the requirements of high-precision cutting. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a pipe cutting machine to solve the problem of improving pipe clamping force and centering effect.

[0005] A pipe cutting machine includes a support frame and a gantry bracket disposed at the front end of the support frame. A centering support assembly and a chuck assembly are mounted on the support frame. The centering support assembly is located below the chuck assembly. A laser cutting assembly is mounted on the gantry bracket. The centering support assembly includes a fixed bracket, a centering clamping mechanism mounted on one side of the fixed bracket, and a support mechanism mounted on the other side of the fixed bracket. The centering clamping mechanism includes a mounting base, two sets of guide blocks that are opposed to each other and horizontally slidably fitted on the mounting base, a drive block movably mounted within the mounting base, and a driver connected to the drive block. Inclined guide surfaces are provided on both sides of the drive block. The two guide blocks slide and fit on the guide surfaces. The driver drives the drive block to move up and down. The drive block synchronously converts the vertical movement into the horizontal relative movement of the two guide blocks through the guide surfaces, so as to clamp the pipe for centering via a clamping block mounted on the top of the guide block.

[0006] Furthermore, the drive block and the guide block are engaged by a T-shaped guide bar and a guide groove, the guide bar being disposed on the guide surface and the guide groove being disposed on the guide block.

[0007] Furthermore, the clamping block is mounted on the guide block via a base body, the base body including a fixing part and an assembly part, the fixing part being fixed to the guide block by bolts, the clamping block having a cylindrical structure and being rotatably mounted in the assembly part along the vertical direction, and a reinforcing rib being provided between the fixing part and the assembly part, the reinforcing rib being located on the outside of the assembly part.

[0008] In this utility model, the centering clamping mechanism is fixed on the fixed bracket by a lifting mechanism. The lifting mechanism includes a fixed plate fixedly connected to the fixed bracket, a lifter adjustablely mounted on the fixed plate, and a mounting plate mounted on the drive end of the lifter. The centering clamping mechanism is fixed on the mounting plate, and the lifter drives the mounting plate to move up and down, thereby driving the centering clamping mechanism to lift.

[0009] In this invention, the centering support assembly is provided in three sets. The three sets of centering support assemblies are evenly spaced along the moving direction of the pipe, and the centering support assembly near the tail of the pipe is not provided with a support mechanism.

[0010] In this utility model, the chuck assembly includes a front chuck mechanism and a rear chuck mechanism. The front chuck mechanism is installed at the front end of the support frame via a movable mechanism, and the rear chuck mechanism is installed at the rear end of the support frame via a moving mechanism. The moving mechanism can drive the rear chuck mechanism to move horizontally forward along the support frame.

[0011] Furthermore, the movable mechanism includes a movable plate that slides horizontally on the support frame and a drive rod fixed on the support frame. The drive end of the drive rod is connected to the movable plate. The front chuck mechanism is fixedly installed on the movable plate. When the drive rod moves, it drives the movable plate to move back and forth, thereby driving the front chuck mechanism to move back and forth.

[0012] The movable plate is also provided with a feeding plate, which is located on the front side of the front chuck assembly.

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

[0014] This invention features a centering clamping mechanism that utilizes an inclined guide surface to convert the vertical motion of the drive block into the horizontal relative motion of the guide block. This ensures a constant driving force from the drive block to the guide block, guaranteeing a constant clamping force between the two clamping blocks. This improves the centering effect on the pipe and the stability during processing, meeting the demands for high-precision and high-efficiency pipe cutting. The clamping blocks are designed as cylindrical and can be rotated to avoid friction during pipe movement, improving smoothness. Reinforcing ribs are also included to counteract the reverse force and prevent structural deformation from affecting the centering effect. The height of the centering clamping mechanism can be adjusted via a lifting mechanism for easy pipe placement. The number and position of the centering support components are rationally set to save equipment costs. The front chuck mechanism can move back and forth for easy control of the pipe cutting length, and a feeding plate is provided on the movable plate for easy feeding and protection of parts. The laser cutting component can move in multiple directions, suitable for processing various complex shapes and sizes. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a perspective view of the pipe cutting machine in this embodiment;

[0017] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0018] Figure 3 This is a schematic diagram of the centering clamping mechanism in this embodiment;

[0019] Figure 4 This is a schematic diagram of the cooperation structure between the guide block and the drive block in this embodiment;

[0020] Figure 5 This is a schematic diagram of the lifting mechanism in this embodiment;

[0021] Figure 6 for Figure 1 Enlarged view of region B in the middle;

[0022] Figure 7 This is a schematic diagram of the active mechanism in this embodiment;

[0023] Figure 8 for Figure 1 A magnified view of region C in the middle.

[0024] The attached figures are labeled as follows: support frame 1, gantry bracket 2, centering support assembly 3, chuck assembly 4, laser cutting assembly 5, fixed bracket 31, centering clamping mechanism 32, support mechanism 33, lifting mechanism 34, mounting base 321, guide block 322, drive block 323, driver 324, clamping block 325, base body 326, guide surface 3230, guide strip 3231, guide groove 3221, fixing part 3261, assembly part 3262, reinforcing rib 3263, fixing plate 341, lifting device 342, mounting plate 343, front chuck mechanism 41, rear chuck mechanism 42, movable mechanism 43, moving mechanism 44, movable plate 431, drive rod 432, and unloading plate 433. Detailed Implementation

[0025] This utility model provides a pipe cutting machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Please see Figures 1 to 8This embodiment discloses a pipe cutting machine, including a support frame 1 and a gantry bracket 2 disposed at the front end of the support frame 1. The support frame 1 is fixedly mounted with a centering support assembly 3 for supporting and positioning the pipe, and a chuck assembly 4 for clamping the pipe and driving it forward. The centering support assembly 3 is located below the chuck assembly 4. A movable laser cutting assembly 5 is mounted on the gantry bracket 2. The pipe is placed on the centering support assembly 3 by an automatic feeding device such as a robotic arm or manually. The centering support assembly 3 then centers the pipe and moves it to a preset position. Next, the chuck assembly 4 movably clamps the front end of the pipe. The tail end of the pipe is fixed and clamped, and then pushed towards the front end (i.e., towards the laser cutting component 5) so that the pipe passes through the gantry bracket 2. When it reaches the corresponding position, the laser cutting component 5 on the gantry bracket 2 cuts the pipe at the pre-cut position, and the cut pipe is unloaded from the front end. To ensure the axial alignment of the pipe and the stability during the cutting process, the alignment support component 3 includes a fixed bracket 31, an alignment clamping mechanism 32 installed on one side of the fixed bracket 31, and a support mechanism 33 installed on the other side of the fixed bracket 31. The pipe is placed on the support mechanism 33 to form a support, and the alignment clamping mechanism... The centering clamping mechanism 32 clamps the pipe from both sides for centering. Specifically, the centering clamping mechanism 32 includes a mounting base 321, two sets of guide blocks 322 that are opposed to each other and horizontally slidably fitted on the mounting base 321, a drive block 323 movably installed in the mounting base 321, and a driver 324 connected to the drive block 323. The top two sides of the drive block 323 are respectively provided with inclined guide surfaces 3230. The two guide blocks 322 are slidably fitted on the guide surfaces 3230. The driver 324 drives the drive block 323 to move up and down. The drive block 323 synchronously converts the vertical movement into vertical movement through the guide surfaces 3230. The two guide blocks 322 move horizontally relative to each other. When the drive block 323 moves upward, the two guide blocks 322 separate relative to each other; when the drive block 323 moves downward, the two guide blocks 322 close relative to each other. At this time, a clamping block 325 is installed on the top of the guide blocks 322. The clamping block 325 can clamp the two sides of the pipe to center its position. Preferably, the drive block 323 and the guide blocks 322 cooperate through a T-shaped guide strip 3231 and a guide groove 3221. The guide strip 3231 is set on the guide surface 3230, and the guide groove 3221 is set on the guide block 322. By cooperating with the inclined guide surface 3230 and the guide block 322, it can be ensured that the driving force generated by the drive block 323 on the guide block 322 remains constant, thereby ensuring that the clamping force of the two clamping blocks 325 remains constant, improving the centering effect of the pipe and the stability during the processing, and ensuring high-precision and high-efficiency pipe cutting.

[0028] Furthermore, when the two clamping blocks 325 clamp the pipe together, the opposing force they experience will cause them to tend to expand outwards. After prolonged use, this may lead to structural deformation, thereby affecting the centering and clamping effect. To address this, the clamping blocks 325 are mounted on the guide block 322 via a seat 326. Specifically, the seat 326 includes a fixing part 3261 and an assembly part 3262. The fixing part 3261 is fixed to the guide block 322 by bolts. The clamping blocks 325 are cylindrical structures and are rotatably mounted in the assembly part 3262. In addition, a reinforcing rib 3263 is provided between the fixing part 3261 and the assembly part 3262. The reinforcing rib 3263 is located on the outside of the assembly part 3262 to counteract the opposing force on the clamping blocks 325. Rotatably mounted in the assembly part 3262 can prevent friction during the forward movement of the pipe and improve smoothness.

[0029] In this embodiment, to facilitate the placement of the pipe, the clamping part of the centering clamping mechanism 32 is lower than the supporting part of the supporting mechanism 33 to avoid interference during placement. Therefore, after the pipe is placed on the supporting mechanism 33, the centering clamping mechanism 32 needs to rise a certain distance before clamping. Thus, the centering clamping mechanism 32 needs to be fixed to the fixed bracket 31 by a lifting mechanism 34. The lifting mechanism 34 includes a fixed plate 341 fixedly connected to the fixed bracket 31, a lifter 342 adjustablely mounted on the fixed plate 341, and a mounting plate 343 connected to the drive end of the lifter 342. The centering clamping mechanism 32 is fixed to the mounting plate 343. The lifter 342 drives the mounting plate 343 to move up and down, thereby driving the centering clamping mechanism 32 to rise and fall. Preferably, the lifter 342 is a telescopic cylinder or an electric actuator. In addition, the adjustment mechanism of the lifting device 342 is existing technology. For reference, a beveling pipe cutting machine disclosed in Chinese Patent Publication No. CN223012166U has an adjustment mechanism for the adjusting seat and the height adjusting screw mentioned in paragraph

[0037] of the specification, which is similar to the adjustment mechanism of this embodiment. Therefore, it will not be described in detail here.

[0030] In this embodiment, the centering support component 3 is provided in three sets, and the three sets of centering support components 3 are evenly spaced along the moving direction of the pipe. In addition, since the tail of the pipe needs to be clamped by the chuck component 4, the centering support component 3 near the tail of the pipe does not need to be provided with a support mechanism 33, thus avoiding structural redundancy and saving equipment costs.

[0031] In this embodiment, the chuck assembly 4 includes a front chuck mechanism 41 and a rear chuck mechanism 42. The front chuck mechanism 41 is mounted on the front end of the support frame 1 via a movable mechanism 43, and the rear chuck mechanism 42 is mounted on the rear end of the support frame 1 via a moving mechanism 44. The moving mechanism 44 can drive the rear chuck mechanism 42 to move horizontally forward along the support frame 1. The specific structure and working principle of the moving mechanism 44 are existing technologies. Refer to the beveling pipe cutting machine disclosed in Chinese Patent Publication No. CN223012166U, whose structure and working principle of the rear chuck body moving on the side hanger mentioned in paragraph

[0040] are similar to this embodiment, and will not be elaborated further here. Similarly, the clamping principle of the front chuck mechanism 41 and the rear chuck mechanism 42 for the pipe is existing technology and will not be elaborated further.

[0032] Furthermore, the movable mechanism 43 includes a movable plate 431 that slides horizontally on the support frame 1 and a drive rod 432 fixed on the support frame 1. The drive end of the drive rod 432 is connected to the movable plate 431. The front chuck mechanism 41 is fixedly installed on the movable plate 431. When the drive rod 432 moves, it drives the movable plate 431 to move back and forth, thereby driving the front chuck mechanism 41 to move back and forth. The front chuck mechanism 41 can be moved to the front or rear of the laser cutting assembly 5 as needed, so that the laser cutting assembly 5 can cut in front of or behind the front chuck mechanism 41, which facilitates control of the length of the cut pipe.

[0033] Furthermore, the movable plate 431 is also provided with a feeding plate 433, which is located on the front side of the front chuck assembly 4. When the pipe is cut, it can be guided into the collecting component through the feeding plate 433 to prevent it from falling to the ground. The feeding plate 433 can also block the iron slag and sparks generated during cutting, protecting the parts for normal use.

[0034] In addition, the laser cutting component 5 can move along the left and right and vertical directions of the gantry bracket 2 to ensure that the laser cutting component 5 can accurately cut the pipe according to the preset path. It is suitable for processing needs of various complex shapes and sizes. The specific structure and working principle are existing technologies and will not be described in detail.

[0035] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. A pipe cutting machine, comprising a support frame and a gantry bracket disposed at the front end of the support frame, wherein a centering support assembly and a chuck assembly are mounted on the support frame, the centering support assembly is located below the chuck assembly, a laser cutting assembly is mounted on the gantry bracket, the centering support assembly comprising a fixed bracket, a centering clamping mechanism mounted on one side of the fixed bracket, and a support mechanism mounted on the other side of the fixed bracket, characterized in that: The centering clamping mechanism includes a mounting base, two sets of guide blocks that are opposite each other and horizontally slidably fitted on the mounting base, a drive block that is movably installed in the mounting base, and a driver connected to the drive block. Each drive block has an inclined guide surface on both sides. The two guide blocks slide and fit on the guide surface. The driver drives the drive block to move up and down. The drive block synchronously converts the vertical movement into the horizontal relative movement of the two guide blocks through the guide surface, so as to clamp the pipe for centering through the clamping block installed on the top of the guide block.

2. The pipe cutting machine according to claim 1, characterized in that: The drive block and the guide block are connected by a T-shaped guide bar and a guide groove. The guide bar is set on the guide surface, and the guide groove is set on the guide block.

3. The pipe cutting machine according to claim 1, characterized in that: The clamping block is mounted on the guide block via a base body. The base body includes a fixing part and an assembly part. The fixing part is fixed to the guide block by bolts. The clamping block is a cylindrical structure and is rotatably mounted in the assembly part along the vertical direction. A reinforcing rib is also provided between the fixing part and the assembly part, and the reinforcing rib is located on the outside of the assembly part.

4. The pipe cutting machine according to claim 1, characterized in that: The centering clamping mechanism is fixed to the fixed bracket by a lifting mechanism. The lifting mechanism includes a fixed plate fixedly connected to the fixed bracket, a lifter adjustablely mounted on the fixed plate, and a mounting plate mounted on the drive end of the lifter. The centering clamping mechanism is fixed on the mounting plate, and the lifter drives the mounting plate to move up and down, thereby driving the centering clamping mechanism to lift.

5. The pipe cutting machine according to claim 1, characterized in that: The centering support assembly is provided in three sets, and the three sets of centering support assemblies are evenly spaced along the moving direction of the pipe, and the centering support assembly near the tail of the pipe is not provided with a support mechanism.

6. The pipe cutting machine according to claim 1, characterized in that: The chuck assembly includes a front chuck mechanism and a rear chuck mechanism. The front chuck mechanism is mounted on the front end of the support frame via a movable mechanism, and the rear chuck mechanism is mounted on the rear end of the support frame via a moving mechanism. The moving mechanism can drive the rear chuck mechanism to move horizontally forward along the support frame.

7. The pipe cutting machine according to claim 6, characterized in that: The movable mechanism includes a movable plate that slides horizontally on a support frame and a drive rod fixed on the support frame. The drive end of the drive rod is connected to the movable plate. The front chuck mechanism is fixedly installed on the movable plate. When the drive rod moves, it drives the movable plate to move back and forth, thereby driving the front chuck mechanism to move back and forth.

8. The pipe cutting machine according to claim 7, characterized in that: The movable plate is also provided with a feeding plate, which is located on the front side of the front chuck assembly.

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