Special equipment with tube row and single tube laser cladding function

Abstract

The invention relates to the technical field of laser cladding equipment, and particularly discloses special equipment with tube bundle and single tube laser cladding, which comprises a tube bundle processing table, supporting tables are arranged on two sides of the tube bundle processing table, a movable cross beam is arranged on the supporting tables, a sliding seat is arranged on the cross beam, a laser cladding head is arranged on the sliding seat, and the laser cladding head is arranged on the tube bundle processing table. The device is characterized in that a single pipe machining table is arranged on one side of the supporting table, one end of the cross beam extends to the position above the single pipe machining table, a driving chuck and a driven chuck which are used for clamping the two ends of a single pipe are arranged at the two ends of the single pipe machining table respectively, and a pipe supporting mechanism for supporting the single pipe is arranged between the driving chuck and the driven chuck; according to the invention, not only is the processing function of the tube bundle reserved, but also the single-tube processing table is additionally arranged on the basis, laser cladding of the single tube is realized, and the same set of laser cladding equipment is used for processing the tube bundle, so that the cost is greatly saved, the device has the dual-processing function of the tube bundle and the single tube, the field space is saved, and the use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of laser cladding equipment, and in particular to a special equipment capable of laser cladding a tube row and a single tube. Background Art

[0002] Laser cladding technology refers to a process in which the selected coating material is placed on the surface of the coated substrate in the form of different fillers, and the coating material and a thin layer on the substrate surface are melted simultaneously by laser irradiation, and then quickly solidified to form a surface coating with extremely low dilution and metallurgical bonding with the substrate material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the substrate material surface.

[0003] The laser cladding technology for tube banks has been used for a short time and is not mature. There are currently two process routes. One process route is to weld the tube plates and then laser clad the entire tube, and the other route is to clad the tubes and plates separately and then weld them together. The current equipment does not have the function of processing both single tubes and tube banks. For example, patent CN113061883A discloses a tube bank laser cladding equipment that can only process tube banks. If a single tube needs to be clad, it is necessary to purchase a single tube cladding equipment separately, which greatly increases the cost. Summary of the invention

[0004] The present invention aims at the above-mentioned deficiencies in the prior art and provides a special equipment with the function of laser cladding of tube rows and single tubes. It not only retains the processing function of the tube row, but also adds a single tube processing table on this basis to realize laser cladding of the single tube. The same set of laser cladding equipment is used for the tube row processing, which greatly saves the cost, enables the device to have the dual processing function of tube row and single tube, saves site space, and is easy to use.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A special equipment for laser cladding of tube rows and single tubes comprises a tube row processing table, support tables are arranged on both sides of the tube row processing table, a movable crossbeam is arranged on the support table, a slide is arranged on the crossbeam, a laser cladding head is arranged on the slide, a single tube processing table is arranged on one side of the support table, one end of the crossbeam extends above the single tube processing table, an active chuck and a driven chuck for clamping the two ends of the single tube are respectively arranged at both ends of the single tube workbench, and a trusteeship mechanism for supporting the single tube is arranged between the active chuck and the driven chuck.

[0007] Preferably, a powder delivery module and a dust removal module are provided at one end of the crossbeam, and an end of a dust suction pipe of the dust removal module is fixed to one side of the slide seat.

[0008] Preferably, a rotating cylinder is provided on one side of the sliding seat, and a rotating platform of the rotating cylinder is connected to a swing frame for fixing the dust suction pipe.

[0009] Preferably, the active chuck is driven by a motor.

[0010] Preferably, a support plate is provided at the upper end of the single-tube processing table, a guide rail and a cylinder are provided at the upper end of the support plate, the driven chuck is connected to a support seat via a rotating shaft, the lower end of the support seat cooperates with the guide rail via a slider, and the piston rod of the cylinder is connected to the support seat.

[0011] Preferably, the hosting mechanism includes a support seat, a bottom plate is provided at the upper end of the support seat, a guide sleeve is provided on the bottom plate, a top plate is provided above the bottom plate, a guide rod cooperating with the guide sleeve is provided at the bottom of the top plate, a roller supporting a single tube is provided at the upper end of the top plate, and an electric cylinder driving the top plate is provided below the bottom plate.

[0012] Preferably, an accordion cover is provided between the top plate and the bottom plate.

[0013] Preferably, a detection plate cooperating with the position of the trusteeship mechanism is provided on the side wall of the single-tube workbench, and a travel switch cooperating with the crossbeam is provided on the detection plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention not only retains the processing function of the tube row, but also adds a single tube processing table on this basis to realize laser cladding of a single tube. The same set of laser cladding equipment is used for tube row processing, which greatly saves costs and enables the device to have the dual processing functions of tube row and single tube, saving site space and being easy to use.

[0016] 2. The trusteeship mechanism of the present invention can realize automatic lifting and lowering by calling the calibrated values. For a single tube of the same specification, there is no need to calibrate the roller height twice. It also has the function of automatically adjusting the height by inputting the workpiece diameter, eliminating the time of manually adjusting the roller height one by one. The driving motor of the electric cylinder adopts an absolute value encoder with a power-off memory function, which can ensure that the previously calibrated height information can continue to be used.

[0017] 3. In the present invention, when the crossbeam approaches for cladding, the corresponding roller can automatically drop a thickness of the cladding layer to avoid a drop in cladding quality caused by sudden jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the swing frame;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of a single-tube processing table;

[0021] Figure 4 This is the main view of the single tube processing table;

[0022] Figure 5 It is a structural schematic diagram of the detection board;

[0023] Figure 6 It is a structural schematic diagram of a driven chuck;

[0024] Figure 7 This is a schematic diagram of the structure of the trustee institution;

[0025] Figure 8 The structure diagram of the roller and the single tube Figure 1 ;

[0026] Fig. 9 The structure diagram of the roller and the single tube Figure 2 ;

[0027] In the figure: 1-tube row processing table; 101-support table; 102-crossbeam; 103-slide seat; 104-laser cladding head; 105-swing frame; 106-rotating cylinder; 2-powder feeding module; 3-dust removal module; 4-single tube processing table; 401-active chuck; 402-detection plate; 403-driven chuck; 404-cylinder; 405-travel switch; 406-support seat; 407-slider; 408-guide rail; 409-support plate; 5-trusteeship mechanism; 501-support seat; 502-guide rod; 503-guide sleeve; 504-bottom plate; 505-bellows cover; 506-top plate; 507-support roller; 508-electric cylinder; 6-single tube. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1 As shown, a special equipment for laser cladding of tube rows and single tubes 6 includes a tube row processing table 1, support tables 101 are provided on both sides of the tube row processing table 1, a movable crossbeam 102 is provided on the support table 101, a slide seat 103 is provided on the crossbeam 102, a laser cladding head 104 is provided on the slide seat 103, a single tube processing table 4 is provided on one side of the support table 101, and one end of the crossbeam 102 extends above the single tube processing table 4, as shown in FIG. Figure 3 , Figure 4As shown, the two ends of the single tube 6 workbench are respectively provided with an active chuck 401 and a driven chuck 403 for clamping the two ends of the single tube 6, and a trustee mechanism 5 for supporting the single tube 6 is provided between the active chuck 401 and the driven chuck 403. The single tube processing table 4 can realize the clamping and rotation of the slender single tube 6. Equipped with multiple liftable trustee mechanisms 5, automatic lifting and lowering can be realized by calling the calibrated values. For single tubes 6 of the same specifications, there is no need to calibrate the height of the roller 507 twice, and it also has the function of automatically adjusting the height by inputting the workpiece diameter, eliminating the time of manually adjusting the height of the roller 507 one by one.

[0030] A powder delivery module 2 and a dust removal module 3 are provided at one end of the crossbeam 102, and the end of the dust suction pipe of the dust removal module 3 is fixed on one side of the slide 103. The powder delivery module 2 is installed on the crossbeam 102. Compared with the installation on the ground, the powder conveying distance is shortened from 25 meters to about 6 meters, which greatly improves the stability of powder delivery and reduces powder waste; a dust removal module 3 is installed at one end of the crossbeam 102 and moves with the crossbeam 102. The dust removal module 3 uses a vacuum cleaner, and the residual powder on the pipe row can be cleaned with the help of the dust removal module 3, which greatly improves the convenience of cleaning powder.

[0031] like Figure 2 As shown, a rotary cylinder 106 is provided on one side of the slide seat 103, and a rotating platform of the rotary cylinder 106 is connected to a swing frame 105 for fixing a dust suction pipe. When dust is being sucked, the swing frame 105 rotates 180 degrees downward to perform dust suction.

[0032] One end of the rotating shaft of the active chuck 401 is connected to a driven wheel, and the motor drives the driven wheel to rotate through a belt. Figure 6 As shown, a support plate 409 is provided at the upper end of the single tube processing table 4, a guide rail 408 and a cylinder 404 are provided at the upper end of the support plate 409, a driven chuck 403 is connected to a support seat 406 via a rotating shaft, a lower end of the support seat 406 cooperates with the guide rail 408 via a slider 407, and a piston rod of the cylinder 404 is connected to the support seat 406. When clamping a short and thick workpiece, the tailstock is tightened; when clamping a slender workpiece, the tailstock is pulled to effectively release thermal deformation and reduce distortion.

[0033] like Figure 7 As shown, the trusteeship mechanism 5 includes a bracket 501, a bottom plate 504 is provided at the upper end of the bracket 501, a guide sleeve 503 is provided on the bottom plate 504, a top plate 506 is provided above the bottom plate 504, a guide rod 502 matched with the guide sleeve 503 is provided at the bottom of the top plate 506, a roller 507 supporting the single tube 6 is provided at the upper end of the top plate 506, an electric cylinder 508 driving the top plate 506 is provided below the bottom plate 504, and the driving motor of the electric cylinder 508 adopts an absolute encoder with a power-off memory function, so that the previously calibrated height information can be continuously used;

[0034] An accordion cover 505 is provided between the top plate 506 and the bottom plate 504 to prevent powder from invading the transmission parts.

[0035] A detection plate 402 is provided on the side wall of the single tube 6 workbench to match the position of the trustee mechanism 5. Figure 5 As shown, the detection plate 402 is provided with a travel switch 405 that cooperates with the crossbeam 102. Figure 8 As shown, when the crossbeam 102 moves to the vicinity of the roller 507, the roller 507 can automatically drop a cladding layer thickness (generally 0.8-1.5 mm, adjustable) to avoid a drop in cladding quality caused by sudden jumping.

[0036] like Fig. 9 As shown, the principle of automatic height adjustment: the height difference between the single tube 6 and the center of the roller 507 (Rx can be converted by the workpiece diameter Dx, that is, Rx = Dx / 2). After the customer inputs the workpiece diameter Dx, the control system automatically solves the height difference H between the workpiece and the center of the roller 507, and controls the servo motor to drive the electric cylinder 508 to automatically rise and fall to the specified height.

[0037] 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. A special equipment for laser cladding of tube banks and single tubes, comprising a tube bank processing table, support tables are provided on both sides of the tube bank processing table, a movable crossbeam is provided on the support table, a slide seat is provided on the crossbeam, and a laser cladding head is provided on the slide seat, characterized in that: A single-tube processing table is provided on one side of the support table, one end of the crossbeam extends above the single-tube processing table, and active chucks and driven chucks for clamping the two ends of the single tube are respectively provided at both ends of the single-tube workbench, and a trusteeship mechanism for supporting the single tube is provided between the active chuck and the driven chuck.

2. A special equipment for laser cladding of tube banks and single tubes as claimed in claim 1, characterized in that: A powder delivery module and a dust removal module are provided at one end of the crossbeam, and an end of a dust suction pipe of the dust removal module is fixed on one side of the slide seat.

3. A special equipment for laser cladding of tube banks and single tubes as claimed in claim 2, characterized in that: A rotating cylinder is arranged on one side of the sliding seat, and a rotating platform of the rotating cylinder is connected with a swing frame for fixing a dust suction pipe.

4. The special equipment for laser cladding of tube banks and single tubes according to claim 1, characterized in that: The active chuck is driven by a motor.

5. The special equipment for laser cladding of tube banks and single tubes as claimed in claim 1, characterized in that: The upper end of the single tube processing table is provided with a support plate, the upper end of the support plate is provided with a guide rail and a cylinder, the driven chuck is connected to a support seat through a rotating shaft, the lower end of the support seat cooperates with the guide rail through a slider, and the piston rod of the cylinder is connected to the support seat.

6. The special equipment for laser cladding of tube banks and single tubes as claimed in claim 1, characterized in that: The hosting mechanism includes a support seat, a bottom plate is provided at the upper end of the support seat, a guide sleeve is provided on the bottom plate, a top plate is provided above the bottom plate, a guide rod cooperating with the guide sleeve is provided at the bottom of the top plate, a roller supporting a single tube is provided at the upper end of the top plate, and an electric cylinder driving the top plate is provided below the bottom plate.

7. A special equipment for laser cladding of tube banks and single tubes as claimed in claim 6, characterized in that: An accordion cover is arranged between the top plate and the bottom plate.

8. The special equipment for laser cladding of tube banks and single tubes as claimed in claim 6, characterized in that: A detection plate matched with the position of the trusteeship mechanism is arranged on the side wall of the single-tube workbench, and a travel switch matched with the crossbeam is arranged on the detection plate.

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