Inner and outer laser cladding equipment for long pipe parts

Abstract

The invention relates to the technical field of laser cladding, and particularly discloses long pipe part inner and outer laser cladding equipment which comprises a machine base, an outer cladding mechanism and an inner cladding mechanism, a detachable main shaft is arranged at one end of the machine base, the outer cladding mechanism is located on one side of the machine base and is in sliding fit with the machine base, and the inner cladding mechanism is located on the other side of the machine base. A slidable bracket, a pipe clamping mechanism, a follow-up supporting mechanism and an inner cladding mechanism are arranged at the upper end of the machine base, the bracket supports a part, the pipe clamping mechanism is arranged on the outer side of the part in a sleeving mode to clamp the part and drive the part to rotate, and the inner cladding mechanism comprises an inner cladding head. The follow-up supporting mechanism is close to the end part of the part, and the height of the follow-up supporting mechanism is adjusted along with jumping of the part; when the end part of the part is machined by the inner cladding head, the follow-up supporting mechanism is used for supporting; the problem that in the prior art, end driving is adopted, so that the radial run-out amplitude of the pipe is large is solved, the stability of parts is improved, and the machining efficiency and the cladding quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cladding, in particular to an internal and external laser cladding device for long tube parts. Background Art

[0002] Part surface modification technology is a new surface modification technology. Through material modification, it can significantly improve the wear resistance, corrosion resistance, heat resistance, oxidation resistance and other properties of the base material surface, thereby achieving the purpose of surface modification or repair. Laser cladding is a new surface modification technology. It forms a metallurgically bonded additive cladding layer on the surface of the base by adding cladding material to the surface of the base material and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the base material. In this way, the surface of the workpiece can achieve a certain strength or corrosion resistance, and a cladding protective layer is formed by performing laser cladding on the inner wall.

[0003] With the development of metal material surface modification technology, this technology is becoming more and more widely used in industrial production applications. For example, the pipelines widely used in oil fields often suffer from wear and corrosion due to mechanical and corrosive wear. In the existing technology, material surface modification technology can be used to modify the surface of the workpiece to improve its wear and corrosion resistance.

[0004] In actual operation, since long tube parts need to be rotated at a stable speed during the surface modification process, the longer the workpiece, the greater the straightness. At the same time, when processing such long workpieces, the workpiece is very easy to sag under the action of its own gravity. At the same time, due to the large amount of heat input to the workpiece itself during the processing, it is easy to cause thermal deformation of the workpiece, which leads to large radial runout of the workpiece during rotation processing, resulting in processing quality defects, difficulties in subsequent precision processing, and other problems.

[0005] Existing laser cladding equipment generally only clamps and drives the end of the pipe through the main shaft, such as the patent CN105297006A discloses a tube laser cladding strengthening device. However, due to the long length of long tube parts, if the end clamping and driving method is adopted, there will be large radial runout and instability of the part end during the processing process, resulting in poor cladding effect. Summary of the invention

[0006] The present invention aims at the above-mentioned deficiencies in the prior art and provides an internal and external laser cladding device for long tube parts, which can realize laser cladding processing of the inner hole and outer circle of long tube parts, has a wide processing range, and can adjust the clamping drive position of the parts through the tube clamping mechanism, thereby solving the problem that the end drive used in the prior art easily causes large radial runout of the tube, thereby improving the stability of the parts during rotation, and improving the processing efficiency and cladding quality.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A device for internal and external laser cladding of long tube parts comprises a machine base, an external cladding mechanism and an internal cladding mechanism, wherein a detachable main shaft is provided at one end of the machine base, the external cladding mechanism is located at one side of the machine base and slidably cooperates with the machine base, a slidable bracket, a tube clamping mechanism, a follow-up support mechanism and an internal cladding mechanism are provided at the upper end of the machine base, the bracket supports the parts, the tube clamping mechanism is sleeved on the outside of the parts to clamp the parts and drive the parts to rotate, the internal cladding mechanism comprises an internal cladding head, the follow-up support mechanism is close to the end of the parts and adjusts its height as the parts jump, and the follow-up support mechanism is used to support the end of the parts when the internal cladding head processes the parts.

[0009] Preferably, the external cladding mechanism includes a first base, a support arm and an external cladding head, the first base is slidably matched with the machine base through a rack guide, a driving motor is provided in the first base, a first column is provided at the upper end of the first base, the support arm and the first column are slidably matched up and down, the external cladding head is located at the end of the support arm, and a ranging module is provided on the side wall of the external cladding head.

[0010] Preferably, one side of the end of the support arm is connected to a slide plate through a second linear guide pair, and a first guide rod is connected to the side wall of the slide plate. A slider that slidably cooperates with the first guide rod is provided on the side wall of the support arm, and the upper end of the slider is connected to the upper end of the first guide rod through a spring. The slide plate is connected to the first column through the first linear guide pair and the first screw pair, and a support rod is connected to the side wall of the support arm, and the lower end of the support rod is provided with a first support wheel that cooperates with the outer surface of the part.

[0011] Preferably, the bracket includes a bracket and a lifting seat, the upper end of the lifting seat is provided with a roller, the lower end of the lifting seat is connected to the bracket through a guide column, the upper end of the bracket is provided with a screw elevator and a first locking bolt connected to the machine base, the upper end of the screw of the screw elevator is connected to the bottom of the lifting seat, the upper end of the machine base is provided with a first guide rail, and the lower end of the bracket cooperates with the first guide rail through a slider.

[0012] Preferably, the tube clamping mechanism includes a tube clamping seat located at the upper end of the machine base, the tube clamping seat is provided with a second locking bolt connected to the machine base, a tube hole is provided in the middle of the tube clamping seat, one side of the tube hole is connected to a gear ring, a motor is provided on the machine base, a gear meshing with the gear ring is connected to the output shaft of the motor, a chuck is connected to one side of the gear ring, and the chuck is provided with a clamping claw for fixing parts.

[0013] Preferably, the follow-up support mechanism includes a support plate and a support seat, a second guide rail is provided on the upper end of the machine seat, the bottom of the support seat cooperates with the second guide rail through a slider, a third locking bolt connected to the machine seat is provided on the support seat, a handle is provided on the side wall of the support seat, the support plate is located above the support seat, an electric cylinder connected to the support plate is provided in the support seat, a shaft sleeve is provided at the upper end of the support seat, a second guide rod cooperating with the shaft sleeve is provided at the lower end of the support plate, and a distance sensor for detecting parts is provided on one side of the support plate.

[0014] Preferably, the internal cladding mechanism includes a second base and an internal cladding head, the second base is slidably matched with the upper end of the base through a rack guide, the second base is provided with a driving motor, the upper end of the second base is connected to the second column through a fourth linear guide pair and a third screw pair, one side of the second column is connected to a lower support rod through a third linear guide pair and a second screw pair, the lower support rod is flexible, the internal cladding head is located at the end of the lower support rod, an upper support rod connected to the second column is provided above the lower support rod, and a water-cooling nozzle is provided at the end of the upper support rod.

[0015] Preferably, a support frame is provided on the outer side of the inner cladding head, and two groups of second support wheels are provided at the bottom of the support frame. The two groups of second support wheels are respectively located on the front and rear sides of the cladding nozzle of the inner cladding head. When the inner cladding head supports the end of the part, the second support wheel on the rear side is supported by the support plate, and the second support wheel on the front side cooperates with the inner wall of the part.

[0016] Preferably, a detection module connected to the support frame is provided on one side of the cladding nozzle of the inner cladding head, and an endoscope, a distance sensor and a water cooling pipe are provided in the detection module.

[0017] Preferably, a fixing sleeve is sleeved on the outer side of the inner cladding head, a rocker rod is connected to the bottom of the fixing sleeve by a rotating shaft, a third supporting wheel is provided at the lower end of the rocker rod, and the inner cladding head is supported by the third supporting wheel when entering and exiting the part, a guide box is connected to the side wall of the fixing sleeve, a limit block for positioning the upper end of the rocker rod is provided in the guide box, the bottom of the limit block is connected to the rocker rod by a pull rope, a pull rod is connected to one end of the limit block, a locking hole is provided on the pull rod, and a pin rod matching the locking hole is provided on the side wall of the lower support rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can realize the laser cladding processing of the inner hole and outer circle of long tube parts, with a wide processing range. The clamping drive position of the parts can be adjusted through the tube clamping mechanism, which solves the problem that the end drive in the prior art easily causes a large radial runout of the tube, thereby improving the stability of the parts during rotation, and improving the processing efficiency and cladding quality.

[0020] 2. Under the action of the spring, the first support wheel of the external cladding head of the present invention is always pressed against the outer surface of the part. The support of the first support wheel ensures that the distance between the external cladding head and the part surface remains unchanged, thereby realizing adaptive adjustment of the external cladding head and improving the processing quality of the external cladding.

[0021] 3. The inner cladding head of the present invention is supported by the second supporting wheel. Since the lower support rod is flexible, the lower cladding head can automatically adjust its height as the part rotates, ensuring that the distance between the inner cladding head and the inner wall of the part remains unchanged, thereby improving the processing quality of the inner cladding.

[0022] 4. When the end of a part is clad, the present invention can support the inner cladding head through the follower support structure to ensure the stability of the inner cladding head. At the same time, the follower support mechanism can follow the end of the part to adjust the height, realize the follow-up adjustment function, ensure that the distance between the cladding head and the part remains unchanged, and ensure the cladding quality of the end of the part.

[0023] 5. The bracket of the present invention can be adjusted in height to support pipes of different diameters. At the same time, the outer cladding mechanism, the inner cladding mechanism, the bracket and the pipe clamping mechanism can all be adjusted in position, so that pipes of different lengths and diameters can be processed, thereby improving the versatility of processing.

[0024] 6. The present invention is provided with a detection module capable of detecting the cladding quality of the internal cladding, so as to better grasp the internal cladding quality information.

[0025] 7. The present invention can increase the convenience of the inner cladding head entering and exiting the pipe parts through the third supporting wheel, and the third supporting wheel can be opened and closed by the pull rod, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the external cladding mechanism;

[0028] Figure 3 is a schematic diagram of the structure of the support arm;

[0029] Figure 4 is a schematic diagram of the structure of a skateboard;

[0030] Figure 5 is a schematic diagram of the structure of the bracket;

[0031] Figure 6 Schematic diagram of the structure of the tube clamping mechanism Figure 1 ;

[0032] Figure 7 Schematic diagram of the structure of the tube clamping mechanism Figure 2 ;

[0033] Figure 8 It is a structural schematic diagram of the follow-up support mechanism;

[0034] Fig. 9 is a cross-sectional view of the follower support mechanism;

[0035] Fig.10 It is the front view of the inner cladding mechanism;

[0036] Fig.11 It is a top view of the inner cladding mechanism;

[0037] Fig.12 Schematic diagram of the structure of the inner cladding head Figure 1 ;

[0038] Fig.13 Schematic diagram of the structure of the inner cladding head Figure 2 ;

[0039] Fig.14 is a schematic diagram of the structure of the pull rod;

[0040] Fig.15 It is a structural schematic diagram of the cooperation between the swing rod and the limit block;

[0041] In the figure: 1-spindle; 2-external cladding mechanism; 201-first base; 202-first column; 203-first linear guide pair; 204-first lead screw pair; 205-support arm; 206-first support wheel; 207-distance measuring module; 208-external cladding head; 209-support rod; 210-slide plate; 211-spring; 212-second linear guide pair; 213-first guide rod; 214-slider; 3-base; 301-first guide rail; 302-second guide rail; 4-bracket; 401-roller; 402-lifting seat; 403-screw lifter; 404-bracket; 405-guide column; 406-first locking bolt; 5-tube clamping mechanism; 501-tube clamping seat; 502-clamping claw; 503-chuck; 504-gear; 505-gear ring; 506-motor; 507-tube hole; 508-second lock Tightening bolt; 6-follow-up support mechanism; 601-support plate; 602-distance sensor; 603-support seat; 604-handle; 605-third locking bolt; 606-electric cylinder; 607-second guide rod; 608-sleeve; 7-inner cladding mechanism; 701-water-cooling nozzle; 702-upper support rod; 703-second column; 704-inner cladding head; 705-lower support rod; 706-third linear guide pair; 7 07-second lead screw pair; 708-fourth linear guide pair; 709-third lead screw pair; 710-second base; 711-fixed sleeve; 712-support frame; 713-second support wheel; 714-third support wheel; 715-detection module; 716-water cooling pipe; 717-inclined surface; 718-limiting block; 719-pull rope; 720-pull rod; 721-locking hole; 722-guide box; 723-rocker. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1As shown, a long tube part (hereinafter referred to as part) internal and external laser cladding equipment includes a machine base 3, an external cladding mechanism 2 and an internal cladding mechanism 7, wherein the laser cladding components of the external cladding mechanism 2 and the internal cladding mechanism 7 are prior art and are not described in detail. A detachable spindle 1 is provided at one end of the machine base 3, and the spindle 1 is butted against the machine base 3 and connected by bolts, and can be disassembled when not in use. The outer cladding mechanism 2 is located on one side of the machine base 3 and slides with the machine base 3. A slidable bracket 4, a pipe clamping mechanism 5, a follow-up support mechanism 6 and an inner cladding mechanism 7 are provided at the upper end of the machine base 3. The bracket 4 supports the parts, and the number of the brackets 4 can be set according to actual conditions, generally 2; the pipe clamping mechanism 5 is sleeved on the outside of the parts to clamp the parts and drive the parts to rotate. The pipe clamping mechanism 5 is generally clamped in the middle position of the parts, and the two ends are supported by the bracket 4 to ensure the stability of the drive, or in conjunction with the main shaft 1, one end of the part is clamped and driven by the main shaft 1, and the position close to the other end is clamped and driven by the pipe clamping mechanism 5. The main shaft 1 and the pipe clamping mechanism 5 clamp and drive the parts synchronously to ensure the overall stability.

[0044] The inner cladding mechanism 7 includes an inner cladding head 704, and the follower support mechanism 6 is close to the end of the part and adjusts its height as the part jumps. When the inner cladding head 704 processes the end of the part, it is supported by the follower support mechanism 6 to ensure that the distance between the cladding nozzle of the inner cladding head 704 and the part remains unchanged.

[0045] The spindle 1 and the tube clamping mechanism 5 realize the clamping and rotation of long tube parts, the bracket 4 realizes the support of the parts, the outer cladding mechanism 2 clads the outer circle of the parts, and the inner cladding mechanism 7 clads the inner hole of the parts.

[0046] like Figure 2 As shown, the external cladding mechanism 2 includes a first base 201, a support arm 205 and an external cladding head 208 (the rest of the laser cladding parts are prior art and will not be described in detail, such as the water cooler in the figure). The first base 201 is slidably matched with the machine base 3 through a rack guide and a linear slider 214 module. A driving motor is provided in the first base 201, and the first base 201 is driven to move left and right along the machine base 3 through the gear and the rack guide. A first column 202 is provided at the upper end of the first base 201, and the support arm 205 and the first column 202 are slidably matched up and down. The external cladding head 208 is located at the end of the support arm 205, and a distance measuring module 207 is provided on the side wall of the external cladding head 208. The distance measuring module 207 uses a distance sensor 602 to measure the distance.

[0047] In order to ensure that the distance between the cladding nozzle of the outer cladding head 208 and the outer side wall of the part remains unchanged, as shown in FIG. Figure 3 , Figure 4As shown, a slide plate 210 is connected to one side of the end of the support arm 205 through a second linear guide pair 212, a first guide rod 213 is connected to the side wall of the slide plate 210, a slider 214 is provided on the side wall of the support arm 205 to slide with the first guide rod 213, the upper end of the slider 214 is connected to the upper end of the first guide rod 213 through a spring 211, the slide plate 210 is connected to the first column 202 through the first linear guide pair 203 and the first lead screw pair 204, a support rod 209 is connected to the side wall of the support arm 205, and a first support wheel 206 that matches the outer surface of the part is provided at the lower end of the support rod 209. Under the action of the spring 211, the first support wheel 206 is always pressed on the outer surface of the part, so that the outer cladding head 208 floats with the jumping of the part, ensuring that the distance between the cladding nozzle of the outer cladding head 208 and the part remains unchanged.

[0048] like Figure 5 As shown, the bracket 4 includes a bracket 404 and a lifting seat 402, the upper end of the lifting seat 402 is provided with a roller 401, the lower end of the lifting seat 402 is connected to the bracket 404 through a guide column 405, the upper end of the bracket 404 is provided with a screw lift 403 and a first locking bolt 406 connected to the machine base 3, the upper end of the screw of the screw lift 403 is connected to the bottom of the lifting seat 402, the upper end of the machine base 3 is provided with a first guide rail 301, the lower end of the bracket 404 cooperates with the first guide rail 301 through a slider 214, and a hand wheel is connected to one side of the screw lift 403, and the height can be adjusted by turning the hand wheel, so as to support long tube parts of different diameters.

[0049] like Figure 6 , Figure 7 As shown, the pipe clamping mechanism 5 includes a pipe clamping seat 501 located at the upper end of the machine base 3, the pipe clamping seat 501 is between the two first guide rails 301, and the pipe clamping seat 501 is provided with a second locking bolt 508 connected to the machine base 3. Since the adjustment frequency of the pipe clamping mechanism 5 is relatively low, it is directly connected and fixed to the machine base 3 through the second locking bolt 508, which can ensure the processing accuracy and better rigidity, and the fixing method is simple and low in cost. A pipe hole 507 is provided in the middle of the pipe clamping seat 501, and a gear ring 505 is connected to one side of the pipe hole 507. The machine base 3 is provided with a motor, and a gear 504 meshing with the gear ring 505 is connected to the output shaft of the motor. A chuck 503 is connected to one side of the gear ring 505, and a clamping claw 502 for fixing the parts is provided on the chuck, and the number of the clamping claws 502 is at least three. After the parts are clamped, the clamping claws 502 are fixed by bolts.

[0050] like Figure 8 , Fig. 9As shown, the follow-up support mechanism 6 includes a support plate 601 and a support seat 603. The upper end of the machine base 3 is provided with a second guide rail 302. The bottom of the support seat 603 cooperates with the second guide rail 302 through a slider 214. The support seat 603 is provided with a third locking bolt 605 connected to the machine base 3. A handle 604 is provided on the side wall of the support seat 603. The support plate 601 is located above the support seat 603. An electric cylinder 606 connected to the support plate 601 is provided in the support seat 603. A shaft sleeve 608 is provided at the upper end of the support seat 603. A second guide rod 607 cooperating with the shaft sleeve 608 is provided at the lower end of the support plate 601. A distance sensor 602 for detecting parts is provided on one side of the support plate 601. The distance between the support plate 601 and the surface of the part is measured by the distance sensor 602. When the part jumps, the distance sensor 602 detects a distance change, and the electric cylinder 606 drives the support plate 601 to move up or down, so that the support plate 601 moves up or down with the part to achieve follow-up.

[0051] like Fig.10 , Fig.11 As shown, the inner cladding mechanism 7 includes a second base 710 and an inner cladding head 704 (the rest of the laser cladding parts are prior art and will not be described in detail, such as the water cooler in the figure). The second base 710 is slidably matched with the upper end of the base through a rack guide and a linear slider 214 module. The second base 710 is provided with a driving motor, and the driving motor is provided with a gear. The gear and the rack cooperate to realize the left and right movement of the second base 710. The upper end of the second base 710 is connected to the second column 703 through a fourth linear guide pair 708 and a third lead screw pair 709 to realize the front and rear adjustment of the column. The second column 703 A lower support rod 705 is connected to one side of the part through a third linear guide pair and a second lead screw pair 707. The lower support rod 705 has the flexibility to move, so that the inner cladding head 704 can be deformed as the part jumps. The lower support rod 705 can be adjusted in height according to pipes of different diameters. The inner cladding head 704 is located at the end of the lower support rod 705. An upper support rod 702 connected to the second column 703 is provided above the lower support rod 705. A water-cooling nozzle 701 is provided at the end of the upper support rod 702. The water-cooling nozzle 701 is connected to a water pump and a water tank through a pipeline. Water mist is sprayed onto the surface of the part for cooling through the water-cooling nozzle 701.

[0052] like Fig.12 , Fig.13As shown, a support frame 712 is sleeved on the outer side of the inner cladding head 704, and two groups of second support wheels 713 are provided at the bottom of the support frame 712. The two groups of second support wheels 713 are respectively located at the front and rear sides of the cladding nozzle of the inner cladding head 704. When the inner cladding head 704 is completely inside the part, the two groups of second support wheels 713 are used for support processing to ensure the distance between the cladding nozzle and the side wall of the part; when the inner cladding head 704 supports the end of the part, the second support wheel 713 on the rear side is supported by the support plate 601, and the second support wheel 713 on the front side cooperates with the inner wall of the part, and the follow-up support mechanism 6 can follow the jumping of the end of the part to ensure the reliability of the support of the inner cladding head 704 and the cladding quality.

[0053] A detection module 715 connected to the support frame 712 is provided on one side of the cladding nozzle of the inner cladding head 704. The detection module 715 is provided with an endoscope, a distance sensor 602 and a water cooling pipe 716. Cold water flows into the water cooling pipe 716. The detection module 715 is cooled by the circulating cold water to protect the detection module 715.

[0054] The outer side of the inner cladding head 704 is covered with a fixed sleeve 711, the bottom of the fixed sleeve 711 is connected to a swing rod 723 through a rotating shaft, and the lower end of the swing rod 723 is provided with a third support wheel 714. The inner cladding head 704 is supported by the third support wheel 714 when entering and exiting the part. Fig.15 As shown, a guide box 722 is connected to the side wall of the fixing sleeve 711, and a limit block 718 is provided in the guide box 722 for positioning the upper end of the swing rod 723. When the limit block 718 is attached to the upper end of the swing rod 723, the swing rod 723 cannot swing, thereby supporting the inner cladding head 704, improving the convenience of the inner cladding head 704 entering and exiting the parts. The bottom of the limit block 718 is connected to the swing rod 723 by a pull rope 719, as shown in FIG. Fig.14 As shown, one end of the limit block 718 is connected to a pull rod 720, and a lock hole 721 is provided on the pull rod 720. A pin rod matching the lock hole 721 is provided on the side wall of the lower support rod 705. When the cladding process is performed, the limit block 718 can be pulled by the pull rod 720 to slide away from the upper end of the swing rod 723, and the pull rope 719 can pull the support rod 209 to swing, so as to retract the third support wheel 714. In order to enable the limit block 718 to slide more smoothly to the upper end of the swing rod 723, an inclined surface 717 is provided on the side of the upper end of the swing rod 723 facing the guide box 722. When the limit block 718 slides toward the swing rod 723, the swing rod 723 will automatically sag under the action of gravity, and the inclined surface 717 can guide the limit block 718, so that the limit block 718 moves more smoothly to the upper end of the swing rod 723.

[0055] In addition, a control screen is provided, which is located in front of the base 3 . The control screen is supported by a bracket, and a guide rail is provided at the bottom of the bracket, so that the control screen can move along the length direction of the base 3 .

[0056] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An internal and external laser cladding device for long tube parts, comprising a machine base, an external cladding mechanism and an internal cladding mechanism, characterized in that: A detachable main shaft is provided at one end of the machine base, the external cladding mechanism is located at one side of the machine base and slidably cooperates with the machine base, and a slidable bracket, a pipe clamping mechanism, a follow-up support mechanism and an internal cladding mechanism are provided at the upper end of the machine base, the bracket supports the part, the pipe clamping mechanism is sleeved on the outside of the part to clamp the part and drive the part to rotate, the internal cladding mechanism includes an internal cladding head, the follow-up support mechanism is close to the end of the part and adjusts its height as the part jumps, and when the internal cladding head processes the end of the part, it is supported by the follow-up support mechanism.

2. The internal and external laser cladding equipment for long tube parts according to claim 1, characterized in that: The external cladding mechanism includes a first base, a support arm and an external cladding head. The first base is slidably matched with the machine base through a rack guide rail. A driving motor is provided in the first base. A first column is provided at the upper end of the first base. The support arm and the first column are slidably matched up and down. The external cladding head is located at the end of the support arm, and a ranging module is provided on the side wall of the external cladding head.

3. The internal and external laser cladding equipment for long tube parts according to claim 2, characterized in that: One side of the end of the support arm is connected to a slide plate through a second linear guide pair, and a first guide rod is connected to the side wall of the slide plate. A slider that slidably cooperates with the first guide rod is provided on the side wall of the support arm, and the upper end of the slider is connected to the upper end of the first guide rod through a spring. The slide plate is connected to the first column through the first linear guide pair and the first screw pair, and a support rod is connected to the side wall of the support arm, and a first support wheel that cooperates with the outer surface of the part is provided at the lower end of the support rod.

4. The internal and external laser cladding equipment for long tube parts according to claim 1, characterized in that: The bracket includes a bracket and a lifting seat, a roller is provided at the upper end of the lifting seat, the lower end of the lifting seat is connected to the bracket through a guide column, a screw elevator and a first locking bolt connected to the machine base are provided at the upper end of the bracket, the upper end of the screw of the screw elevator is connected to the bottom of the lifting seat, a first guide rail is provided at the upper end of the machine base, and the lower end of the bracket cooperates with the first guide rail through a slider.

5. The internal and external laser cladding equipment for long tube parts according to claim 1, characterized in that: The tube clamping mechanism includes a tube clamping seat located at the upper end of the machine base, the tube clamping seat is provided with a second locking bolt connected to the machine base, a tube hole is provided in the middle of the tube clamping seat, one side of the tube hole is connected to a gear ring, a motor is provided on the machine base, a gear meshing with the gear ring is connected to the output shaft of the motor, a chuck is connected to one side of the gear ring, and a clamping claw for fixing parts is provided on the side wall of the chuck.

6. The internal and external laser cladding equipment for long tube parts according to claim 1, characterized in that: The follow-up support mechanism includes a support plate and a support seat, a second guide rail is provided at the upper end of the machine seat, the bottom of the support seat cooperates with the second guide rail through a slider, a third locking bolt connected with the machine seat is provided on the support seat, a handle is provided on the side wall of the support seat, the support plate is located above the support seat, an electric cylinder connected with the support plate is provided in the support seat, a shaft sleeve is provided at the upper end of the support seat, a second guide rod cooperating with the shaft sleeve is provided at the lower end of the support plate, and a distance sensor for detecting parts is provided on one side of the support plate.

7. The internal and external laser cladding equipment for long tube parts according to claim 6, characterized in that: The inner cladding mechanism includes a second base and an inner cladding head, the second base is slidably matched with the upper end of the base through a rack guide, the second base is provided with a driving motor, the upper end of the second base is connected to the second column through a fourth linear guide pair and a third screw pair, one side of the second column is connected to a lower support rod through the third linear guide pair and the second screw pair, the lower support rod is flexible, the inner cladding head is located at the end of the lower support rod, an upper support rod connected to the second column is provided above the lower support rod, and a water-cooling nozzle is provided at the end of the upper support rod.

8. The internal and external laser cladding equipment for long tube parts according to claim 7, characterized in that: A support frame is provided on the outer side of the inner cladding head, and two groups of second support wheels are provided at the bottom of the support frame. The two groups of second support wheels are respectively located at the front and rear sides of the cladding nozzle of the inner cladding head. When the inner cladding head supports the end of the part, the second support wheel on the rear side is supported by the support plate, and the second support wheel on the front side cooperates with the inner wall of the part.

9. The internal and external laser cladding equipment for long tube parts according to claim 7, characterized in that: A detection module connected to the support frame is provided on one side of the cladding nozzle of the inner cladding head, and an endoscope, a distance sensor and a water cooling pipe are provided in the detection module.

10. The internal and external laser cladding equipment for long tube parts according to claim 7, characterized in that: A fixing sleeve is sleeved on the outer side of the inner cladding head, a rocker rod is connected to the bottom of the fixing sleeve by a rotating shaft, a third supporting wheel is arranged at the lower end of the rocker rod, and the inner cladding head is supported by the third supporting wheel when entering and exiting the parts, a guide box is connected to the side wall of the fixing sleeve, a limit block for positioning the upper end of the rocker rod is arranged in the guide box, the bottom of the limit block is connected to the rocker rod by a pull rope, a pull rod is connected to one end of the limit block, a locking hole is arranged on the pull rod, and a pin rod matching the locking hole is arranged on the side wall of the lower support rod.

Images