A bimetallic composite pipe finishing apparatus

Abstract

The application discloses a bimetal composite pipe trimming device, and relates to the technical field of seamless metal composite pipe surface treatment, which aims at solving the problems of poor forming quality and low production efficiency caused by the fact that the bimetal composite pipe needs to be manually transferred between different devices for step-by-step inner and outer pipe polishing and bimetal composite pipe end cutting when the bimetal composite pipe is trimmed. The bimetal composite pipe trimming device comprises a support frame, a first polishing device, a second polishing device and a laser cutting device. The support frame is provided with a driving assembly for driving the bimetal composite pipe to rotate. The first polishing device is used for polishing the outer wall of the bimetal composite pipe. The second polishing device is used for polishing the inner wall of the bimetal composite pipe. The laser cutting device has a laser outlet facing the pipe wall of the axial two ends of the bimetal composite pipe, and the laser outlet is used for emitting laser to the pipe wall of the bimetal composite pipe to cut the axial two ends of the bimetal composite pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surface treatment of seamless metal composite pipe, and particularly relates to a double-metal composite pipe trimming device. BACKGROUND

[0002] Three-roll skew rolling double-metal composite pipe is a forming process of partial loading and spiral advancement, and is currently the most effective forming method for producing double-metal composite pipe, mainly including pipe pre-treatment (polishing, sleeving, welding), three-roll skew rolling, composite pipe sizing, cooling and subsequent finishing and other process steps. The double-metal composite pipe produces waste at the two ends of the inner and outer pipes and poor quality of the inner and outer walls due to high-temperature rolling and sizing, cooling and the like, which will affect the subsequent product use and performance of the double-metal composite pipe, so trimming of the double-metal composite pipe becomes an indispensable part in the production process.

[0003] At present, in the prior art, when trimming the double-metal composite pipe, the double-metal composite pipe is frequently transferred between different devices by manual operation to achieve the purpose of trimming the double-metal composite pipe, and this trimming method will reduce the stability of the forming quality of the double-metal composite pipe and the production efficiency. SUMMARY

[0004] The purpose of the present application is to provide a double-metal composite pipe trimming device to solve the problem of poor forming quality and low production efficiency of the double-metal composite pipe caused by the need for frequent manual transfer operation, step-by-step polishing of the inner and outer pipes and cutting of the two ends of the double-metal composite pipe.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme:

[0006] A double-metal composite pipe trimming device, characterized in that it comprises:

[0007] a support frame, a driving assembly is arranged on the support frame, and the driving assembly is used to drive the double-metal composite pipe to rotate;

[0008] a first polishing device, the first polishing device is used to polish the outer wall of the double-metal composite pipe;

[0009] a second polishing device, the second polishing device is used to polish the inner wall of the double-metal composite pipe;

[0010] a laser cutting device, the laser cutting device has a laser outlet facing the pipe wall of the two axial ends of the double-metal composite pipe, and the laser outlet is used to emit laser to the pipe wall of the double-metal composite pipe to cut the two axial ends of the double-metal composite pipe.

[0011] Optionally, in the double-metal composite pipe trimming device described above, the driving assembly comprises:

[0012] two first supporting rollers arranged side by side, one of the first supporting rollers is rotatably arranged on the supporting frame, and the other first supporting roller is fixedly arranged on the supporting frame, and the two first supporting rollers are used for placing the bimetal composite pipe;

[0013] a first driving motor, the first driving motor is arranged on the supporting frame, and a driving end of the first driving motor is connected with the one first supporting roller and used for driving the one first supporting roller to rotate.

[0014] Optionally, in the bimetal composite pipe trimming device, the first polishing device comprises:

[0015] a first polishing frame, the first polishing frame is arranged on the supporting frame;

[0016] a first pressing assembly, the first pressing assembly is arranged on the first polishing frame, and the first pressing assembly is used for providing a driving force in a radial direction of the bimetal composite pipe;

[0017] a first polishing assembly, the first polishing assembly is connected with a driving end of the first pressing assembly, and the first polishing assembly is used for polishing an outer wall of the bimetal composite pipe.

[0018] Optionally, in the bimetal composite pipe trimming device, the first polishing assembly comprises:

[0019] a second driving motor, the second driving motor is connected with the driving end of the first pressing assembly;

[0020] a first polishing part, the first polishing part is connected with a driving end of the second driving motor, and the second driving motor is used for driving the first polishing part to rotate and polish the outer wall of the bimetal composite pipe.

[0021] Optionally, in the bimetal composite pipe trimming device, the first polishing device further comprises a first screw mechanism, the first screw mechanism is fixedly arranged on the supporting frame, an extension direction of the first screw mechanism is parallel to an axial direction of the bimetal composite pipe, the first screw mechanism is connected with the first polishing frame, and the first screw mechanism is used for driving the first polishing frame to move along the axial direction of the bimetal composite pipe.

[0022] Optionally, in the bimetal composite pipe trimming device, the bimetal composite pipe trimming device further comprises a second pressing assembly, the second pressing assembly is arranged on the supporting frame, and the second pressing assembly is used for applying a pressing force on the bimetal composite pipe to the driving assembly.

[0023] Optionally, in the bimetal composite pipe trimming device, the second pressing assembly comprises:

[0024] a hydraulic part, the hydraulic part is arranged on the supporting frame;

[0025] The pressing wheels are connected with the driving pressing ends of the hydraulic components, the number of the pressing wheels is two, and the two pressing wheels are arranged at intervals along the circumference of the bimetal composite pipe and located on both sides of the upper half of the bimetal composite pipe.

[0026] Optionally, in the bimetal composite pipe trimming device, the bimetal composite pipe trimming device further comprises a second screw mechanism arranged on the support frame, the extension direction of the second screw mechanism is parallel to the axial direction of the bimetal composite pipe, the second screw mechanism is connected with the second pressing assembly and used to drive the second pressing assembly to move along the axial direction of the bimetal composite pipe.

[0027] Optionally, in the bimetal composite pipe trimming device, the number of the second pressing assemblies is two, and the number of the laser cutting devices is two, each laser cutting device comprises:

[0028] a support fixedly arranged on each second pressing assembly;

[0029] a laser fixedly arranged on the support, the laser being used to provide laser light perpendicular to the axial direction of the bimetal composite pipe.

[0030] Optionally, in the bimetal composite pipe trimming device, the second polishing device comprises:

[0031] a second polishing frame;

[0032] a polishing table movably arranged on the second polishing frame along the axial direction of the bimetal composite pipe;

[0033] a third driving motor fixedly arranged on the polishing table;

[0034] a second polishing component fixedly arranged on the driving end of the third driving motor and used to polish the inner wall of the bimetal composite pipe.

[0035] Compared with the prior art, the bimetal composite pipe finishing equipment provided by the application has the support frame as the main frame integrating the driving assembly, the first polishing device, the second polishing device and the laser cutting device, wherein the driving assembly rotates to support the bimetal composite pipe to realize axial rotation; the first polishing device and the second polishing device are respectively arranged on the outer side and the inner side of the composite pipe at the corresponding stations along the axial direction of the support frame; the laser cutting device has a laser outlet facing the pipe wall of the two ends of the bimetal composite pipe, and the light path of the laser outlet penetrates the pipe wall of the bimetal composite pipe. In specific implementation, the driving assembly drives the bimetal composite pipe to rotate along the axial direction of the bimetal composite pipe, the laser cutting device simultaneously cuts the two ends of the pipe body, and the first polishing device and the second polishing device simultaneously polish along the axial direction of the bimetal composite pipe to continuously polish the inner and outer surfaces of the rotating composite pipe. In this way, the rotating driving, the inner and outer surface polishing and the end cutting function are integrated in the same station through the support frame, so that the cutting and the inner and outer surface finishing of the composite pipe are simultaneously completed in one clamping, the repeated positioning error caused by the transfer of multiple devices in the traditional process is avoided, and the processing quality stability is improved. At the same time, the integrated structure reduces the manual intervention link, shortens the production time and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application in any way. In the drawings:

[0037] Figure 1 It is a schematic diagram of the overall structure of the bimetal composite pipe finishing equipment proposed in the embodiment of the application;

[0038] Figure 2 It is a partial enlarged schematic view of the second pressing assembly of the bimetal composite pipe finishing equipment proposed in the embodiment of the application;

[0039] Figure 3 It is a partial enlarged schematic view of the first polishing device of the bimetal composite pipe finishing equipment proposed in the embodiment of the application;

[0040] Figure 4 It is a partial enlarged schematic view of the driving assembly of the bimetal composite pipe finishing equipment proposed in the embodiment of the application;

[0041] Figure 5 It is a structural schematic view of the second polishing device of the bimetal composite pipe finishing equipment proposed in the embodiment of the application.

[0042] The reference signs: 100 is a support frame, 200 is a driving assembly, 210 is a first supporting roller, 220 is a first driving motor, 300 is a first polishing device, 310 is a first polishing frame, 320 is a first pressing assembly, 330 is a first polishing assembly, 3301 is a second driving motor, 3302 is a first polishing part, 340 is a first screw mechanism, 400 is a second polishing device, 410 is a second polishing frame, 420 is a polishing table, 430 is a third driving motor, 440 is a second polishing part, 500 is a laser cutting device, 510 is a support, 520 is a laser, 600 is a second pressing assembly, 610 is a hydraulic part, 620 is a pressing wheel, 700 is a second screw mechanism. DETAILED DESCRIPTION

[0043] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited. The meaning of "several" is one or more than one, unless otherwise explicitly and specifically limited.

[0046] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Please refer to Figure 1 The bimetallic composite pipe finishing equipment provided by the embodiment of the present application comprises a support frame 100, a first polishing device 300, a second polishing device 400 and a laser cutting device 500; wherein the support frame 100 is provided with a driving assembly 200, which is used to drive the bimetallic composite pipe to rotate; the first polishing device 300 is used to polish the outer wall of the bimetallic composite pipe; the second polishing device 400 is used to polish the inner wall of the bimetallic composite pipe; the laser cutting device 500 has a laser outlet facing the pipe wall of the axial two ends of the bimetallic composite pipe, and the laser outlet is used to emit laser to the pipe wall of the bimetallic composite pipe to cut the axial two ends of the bimetallic composite pipe.

[0049] In specific implementation: in the bimetallic composite pipe finishing equipment provided by the present application, the support frame 100 is used as the main frame to integrate the driving assembly 200, the first polishing device 300, the second polishing device 400 and the laser cutting device 500, wherein the driving assembly 200 rotates to support the bimetallic composite pipe to realize axial rotation; the first polishing device 300 and the second polishing device 400 are respectively arranged on the outer side and the inner side of the composite pipe at the corresponding stations along the axial direction of the support frame 100; the laser cutting device 500 has a laser outlet facing the pipe wall of the axial two ends of the bimetallic composite pipe, and the light path of the laser outlet penetrates the pipe wall of the bimetallic composite pipe. In specific implementation, the driving assembly 200 drives the bimetallic composite pipe to rotate along the axial direction of the bimetallic composite pipe, the laser cutting device 500 synchronously cuts the two ends of the pipe body, and at the same time, the first polishing device 300 and the second polishing device 400 polish along the axial direction of the bimetallic composite pipe, respectively implementing continuous polishing on the inner and outer surfaces of the rotating composite pipe. In this way, the rotating drive, the inner and outer surface polishing and the end cutting function are integrated in the same station through the support frame 100, so that the cutting and the inner and outer surface finishing of the composite pipe are simultaneously completed in one clamping, the repeated positioning error caused by the transfer of multiple devices in the traditional process is avoided, and the processing quality stability is improved; at the same time, the integrated structure reduces the manual intervention link, shortens the production time, and improves the production efficiency.

[0050] As a possible implementation manner, as shown in Figure 4As shown, the driving assembly 200 includes two first supporting rollers 210 and a first driving motor 220 arranged side by side; one of the first supporting rollers 210 is rotatably arranged on the supporting frame 100, and the other first supporting roller 210 is fixedly arranged on the supporting frame 100, and the two supporting rollers are used for placing the bimetallic composite pipe; the first driving motor 220 is arranged on the supporting frame 100, and a driving end of the first driving motor 220 is connected with the first supporting roller 210, and is used for driving the first supporting roller 210 to rotate.

[0051] In specific implementation, the bimetallic composite pipe is arranged between the two first supporting rollers 210, the fixedly arranged first supporting roller 210 provides the static fixing support 510, and the rotatable first supporting roller 210 is driven to rotate by the first driving motor 220, and drives the bimetallic composite pipe to rotate around the axis thereof through the friction force between the roller surface and the outer wall of the bimetallic composite pipe. In this way, the stable clamping mechanism is formed through the cooperation of the fixed and rotatable first supporting rollers 210, and the radial positioning accuracy of the bimetallic composite pipe in the rotating process is ensured.

[0052] In some embodiments, an adjustable-spacing supporting roller sliding rail mechanism is arranged on both sides of the supporting frame 100, and the spacing between the two rollers is adjusted through a lead screw to adapt to different pipe diameters of the bimetallic composite pipe, thereby enhancing the universality of the device.

[0053] In some possible implementations, as shown in Figure 1 As shown, the first polishing device 300 includes a first polishing frame 310, a first pressing-down assembly 320 and a first polishing assembly 330; the first polishing frame 310 is arranged on the supporting frame 100; the first pressing-down assembly 320 is arranged on the first polishing frame 310, and is used for providing a driving force in the radial direction of the bimetallic composite pipe; the first polishing assembly 330 is connected to a driving end of the first pressing-down assembly 320, and is used for polishing the outer wall of the bimetallic composite pipe.

[0054] In specific implementation, the first pressing-down assembly 320 drives the first polishing assembly 330 to press downward in the direction perpendicular to the bimetallic composite pipe, so that the polishing part of the first polishing assembly 330 forms a contact pressure with the outer wall of the bimetallic composite pipe, and at the same time, the first driving motor 220 on the supporting frame 100 drives the first supporting roller 210 to rotate, thereby driving the bimetallic composite pipe to rotate, and the first polishing assembly 330 continuously polishes along the circumferential movement track of the bimetallic composite pipe. In this way, through the cooperation of the adjustable first pressing-down assembly 320 and the rotating movement of the bimetallic composite pipe, the contact pressure in the polishing process of the outer wall of the bimetallic composite pipe is ensured to be stable, and the surface concave-convex defects caused by pressure fluctuation in the traditional manual polishing are avoided.

[0055] As a possible implementation, as shown in Figure 3As shown, the first polishing assembly 330 comprises a second driving motor 3301 and a first polishing component 3302; the second driving motor 3301 is connected to the driving end of the first pressing assembly 320; the first polishing component 3302 is connected to the driving end of the second driving motor 3301, and the second driving motor 3301 is used to drive the first polishing component 3302 to rotate to polish the outer wall of the bimetallic composite pipe.

[0056] In specific implementation, when the first pressing assembly 320 drives the first polishing assembly 330 to move down to the target position, the second driving motor 3301 drives the first polishing component 3302 to rotate, and at the same time, the first driving assembly 200 on the support frame 100 drives the bimetallic composite pipe to rotate around its own axis. The first polishing component 3302 comprises a replaceable grinding wheel, which is detachably arranged at the driving end of the second driving motor 3301. Through the separate design of the second driving motor 3301 and the first polishing component 3302, the first polishing component 3302 can be replaced without disassembling the second driving motor 3301, thereby shortening the maintenance time.

[0057] Further, the first polishing device 300 further comprises a first screw mechanism 340, which is fixedly arranged on the support frame 100, and the extension direction of the first screw mechanism 340 is parallel to the axial direction of the bimetallic composite pipe. The first screw mechanism 340 is connected with the first polishing frame 310, and is used to drive the first polishing frame 310 to move along the axial direction of the bimetallic composite pipe.

[0058] Specifically, the first screw mechanism 340 is fixed on the support frame 100, and the axis thereof is parallel to and aligned with the axial direction of the bimetallic composite pipe. The bottom of the first polishing frame 310 is provided with a sliding nut block matched with the screw rod. The sliding nut block is driven to translate along the length direction of the bimetallic composite pipe by driving the screw rod to rotate. Since the first polishing assembly 330 is installed on the first polishing frame 310 through the first pressing component, when the first screw mechanism 340 drives the polishing frame to move axially, the first polishing assembly 330 moves integrally, so as to accurately adjust the axial processing position of the first polishing assembly 330 relative to the bimetallic composite pipe.

[0059] In specific implementation, while the first driving assembly 200 drives the bimetallic composite pipe to rotate, the first screw mechanism 340 drives the screw rod to rotate, thereby driving the polishing frame to move stably along the axial direction of the bimetallic composite pipe. At this time, the first polishing assembly 330 forms spiral polishing traces on the surface of the rotating pipe body, and the constant pressure control of the first pressing component ensures that the polishing part of the first polishing assembly 330 maintains stable contact with the pipe wall throughout the process. Through the combined motion of axial movement and circumferential rotation, continuous and uninterrupted polishing of the outer wall surface of the bimetallic composite pipe is realized.

[0060] In this way, by precisely regulating the axial position of the first polishing frame 310 through the first screw rod mechanism 340, the outer wall polishing range can cover the entire length of the bimetallic composite pipe, eliminating the local unpolished area caused by the fixed station of the traditional equipment; and the high rigidity characteristics of the screw rod transmission effectively inhibit vibration interference, ensuring the stability of the polishing pressure during long-stroke movement, and avoiding defects such as uneven axial polishing depth.

[0061] In some embodiments, a first sliding rail is also fixedly arranged on the support frame 100, the extension direction of the first sliding rail is parallel to the axial direction of the first supporting roller 210, and the first polishing frame 310 has a matching part that can be sleeved and coupled on the first sliding rail, and the matching part is in sliding connection with the first sliding rail. In this way, when the position of the first polishing frame 310 is adjusted through the first screw rod mechanism 340, since the first polishing frame 310 is sleeved on the first sliding rail, the first sliding rail supports and guides the first polishing frame 310, thereby enhancing the stability during movement.

[0062] As a possible implementation manner, as shown in Figure 2 The bimetallic composite pipe finishing device also includes a second pressing assembly 600 arranged on the support frame 100, and the second pressing assembly 600 is used to apply a force to the bimetallic composite pipe to press it on the driving assembly 200.

[0063] Specifically, the second pressing assembly 600 is arranged on the support frame 100, and the pressing end thereof faces the bimetallic composite pipe placed above the driving assembly 200. When the bimetallic composite pipe is placed on the two first supporting rollers 210 of the driving assembly 200, the second pressing assembly 600 is started to move downward until it contacts and applies pressure to the outer wall of the pipe body of the bimetallic composite pipe, thereby stably pressing the bimetallic composite pipe on the bearing surface of the first supporting roller 210. At this time, the bimetallic composite pipe is rotated to complete the polishing work under the driving of the first driving assembly 200. By additionally arranging the second pressing assembly 600, the unstable displacement of the bimetallic composite pipe during rotation and polishing is effectively inhibited, the vibration problem caused by the eccentricity of the pipe body or the unevenness of the surface is eliminated, and the machining precision of the laser cutting and the inner and outer polishing is ensured.

[0064] Further, the second pressing assembly 600 includes a hydraulic component 610 and a pressing wheel 620; the hydraulic component 610 is arranged on the support frame 100; the pressing wheel 620 is connected to the driving pressing end of the hydraulic component 610, and the number of the pressing wheel 620 is two, and the two pressing wheels 620 are arranged at intervals along the circumference of the bimetallic composite pipe and located on both sides of the upper half of the circumference of the bimetallic composite pipe.

[0065] Specifically, the hydraulic component 610 is fixedly mounted on the support frame 100 via a base, and its piston rod extends downward and is connected to the wheel frame of the pressing wheel 620. The two pressing wheels 620 are symmetrically arranged on both sides of the upper half of the bimetallic composite pipe, and the wheel surface contacts the outer wall of the bimetallic composite pipe during operation.

[0066] In specific implementation, the hydraulic component 610 drives the piston rod to press down, causing two pressing rollers 620 to press down simultaneously from both sides of the composite tube, applying a clamping force to the tube body and stably pressing the bimetallic composite tube against the bearing surface of the first support roller 210. When the first drive assembly 200 drives the bimetallic composite tube to rotate, the pressing rollers 620 roll along with the tube body, providing radial constraint to prevent the bimetallic composite tube body from jumping and avoiding sliding friction with the tube wall to avoid damaging the tube body surface. In some embodiments, the number of pressing rollers 620 can be multiple, with two pressing rollers 620 forming a corresponding group. The multiple groups of pressing rollers 620 are designed to be spaced apart along the axial direction of the bimetallic composite tube. The distribution design of multiple roller surfaces increases the contact area, reduces local pressure, and avoids deformation of the bimetallic composite tube wall under pressure.

[0067] As one possible implementation, such as Figure 1 As shown, the bimetallic composite tube trimming equipment also includes a second lead screw mechanism 700, which is mounted on the support frame 100. The extension direction of the second lead screw mechanism 700 is parallel to the axial direction of the bimetallic composite tube. The second lead screw mechanism 700 is connected to the second pressing assembly 600 and is used to drive the second pressing assembly 600 to move along the axial direction of the bimetallic composite tube.

[0068] Specifically, the second lead screw mechanism 700 is rigidly mounted on the support frame 100, and its axis is parallel to the axis of the bimetallic composite tube; the bottom of the second pressing assembly 600 is provided with a movable slider that matches the lead screw. The slider is driven to move along the length direction of the bimetallic composite tube by rotating the lead screw, thereby driving the second pressing assembly 600 to move axially as a whole.

[0069] In practice, after the bimetallic composite tube is clamped, the second lead screw mechanism 700 drives the lead screw to rotate, causing the second pressing component 600 to move axially along the bimetallic composite tube to the target pressing position. At this time, the second pressing component 600 presses down, stably pressing the bimetallic composite tube onto the first support roller 210. In subsequent processing, if the position of the pressing point needs to be adjusted, the second lead screw mechanism 700 can drive the second pressing component 600 to move axially in real time, ensuring that the pressing force always acts on the non-processing area.

[0070] Through the linkage design of the second screw rod mechanism 700 and the second pressing assembly 600, dynamic adjustment of the pressing position is realized, which not only ensures the stability of the pipe body in the machining process, but also avoids the interference of the second pressing assembly 600 on the cutting, grinding and other processes; the high positioning accuracy of the screw rod transmission mechanism ensures the accurate control of the pressing point spacing, and eliminates the problem of uneven pressing force distribution caused by traditional manual adjustment.

[0071] As a possible implementation manner, as shown in Figure 1 The number of the second pressing assemblies 600 is two, and the number of the laser cutting devices 500 is two, each of which includes a support 510 and a laser 520; wherein the supports 510 are fixedly arranged on the second pressing assemblies 600 respectively; the laser 520 is fixedly arranged on the support 510, and the laser 520 is used to provide laser light perpendicular to the axial direction of the bimetallic composite pipe.

[0072] Specifically, the second pressing assembly 600 and the laser cutting device 500 adopt integrated design, the support 510 of the laser cutting device 500 is fixedly installed on the second pressing assembly 600, and in specific implementation, when the bimetallic composite pipe is completed with inner and outer wall grinding, the second pressing assembly 600 moves to the specified position of the pipe body at both ends along the support frame 100, or the second pressing assembly 600 is located at the specified cutting position at both ends, the second pressing assembly 600 presses and fixes the bimetallic composite pipe, and at the same time, the laser 520 starts to emit laser beam perpendicular to the pipe axis to implement synchronous cutting of the pipe body at both ends. In this way, through the integrated design of the pressing and cutting functions, stable clamping during pipe end cutting is realized, and pipe end vibration caused by the separation of the pressing point and the cutting point in the traditional split equipment is eliminated. At the same time, the laser cutting device 500 is installed on the second pressing assembly 600, which facilitates the adjustment of the axial position of the laser cutting device 500 and the second pressing assembly 600 relative to the pipe body, and only the second pressing assembly 600 needs to be adjusted to achieve simultaneous adjustment, thereby increasing the adjustment efficiency.

[0073] In some embodiments, as Figure 1As shown, two second sliding rails are fixedly arranged on the support frame 100, and the two second sliding rails are respectively located on the two sides of the first support roller 210, and the extension direction of the second sliding rail is consistent with the axial direction of the first support roller 210. At the same time, two second screw mechanisms 700 are also arranged, which are respectively located on the two sides of the first support roller 210. The second pressing-down assembly 600 is of a frame type structure, which has two ends spanning the two sides of the first support roller 210. One end of the second pressing-down assembly 600 is connected with the second screw mechanism 700, and the other end is slidingly connected with one second sliding rail. Through the arrangement of the second sliding rail, the second sliding rail provides stable guidance for the movement of the second pressing-down assembly 600 in the axial direction of the first support roller 210. The second screw mechanism 700 and the second sliding rail are arranged on the two sides of the support frame 100 in a symmetrical manner. The mirror-symmetrical design improves the mass center balance between different components and enhances the stability of the whole device.

[0074] For example, the upper surfaces of the first sliding rail and the second sliding rail are concave surfaces, the lower surface of the first polishing frame 310 at the position matched with the first sliding rail is a convex surface, and the lower surface of the second pressing-down assembly 600 at the position matched with the second sliding rail is a convex surface. For example, the upper surfaces of the second sliding rail and the first sliding rail are V-shaped open grooves, and the lower surface of the second pressing-down assembly 600 matched with the second sliding rail is a convex wedge-shaped block matched with the angle of the V-shaped open groove and can be embedded into the open groove. In specific implementation, the convex wedge-shaped block is limited to move in the open groove, and the angle of the two walls of the open groove ensures that the wedge-shaped block can move along the preset length direction of the open groove, while limiting other movement trends of the wedge-shaped block, ensuring the stability of the movement of the second pressing-down assembly 600, and preventing the second pressing-down assembly 600 from being deflected, warped or displaced. Similarly, the first sliding rail and the first polishing frame 310 matched with the first sliding rail can also be provided with the above structure.

[0075] As a possible implementation manner, as shown in Figure 5 As shown, the second polishing device 400 includes a second polishing frame 410, a polishing table 420, a third driving motor 430 and a second polishing component 440. The polishing table 420 is movably arranged on the second polishing frame 410 along the axial direction of the double-metal composite pipe. The third driving motor 430 is fixedly arranged on the polishing table 420. The second polishing component 440 is fixedly arranged on the driving end of the third driving motor 430, and is used for polishing the inner wall of the double-metal composite pipe.

[0076] Specifically, the top of the second polishing frame 410 is provided with a horizontal guide rail, and the polishing table 420 is slidably connected with the horizontal guide rail through a screw mechanism and can move along the direction parallel to the axis of the bimetallic composite pipe. In a specific implementation, when the outer wall of the bimetallic composite pipe is processed, the polishing table 420 is moved along the guide rail, the second polishing component 440 arranged on the third driving click is sent into the inner wall of the bimetallic composite pipe, the third driving motor 430 drives the second polishing component 440 to rotate and move along a preset path in the bimetallic composite pipe to polish the inner wall, and after the inner wall of the bimetallic composite pipe is polished, the polishing table 420 is moved to reset the device, and the polishing is completed. The second polishing device 400 adopts an independent guide rail and a screw axial movement platform, and integrates the third driving motor 430 with the polishing component, and such a design enhances the stability during the inner wall polishing and improves the quality and efficiency of the inner wall finishing.

[0077] In the description of the above-described embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0078] The above description is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A bimetallic composite pipe finishing apparatus characterized by, The application relates to a bimetal composite pipe trimming device. The bimetal composite pipe trimming device comprises a support frame, a driving assembly arranged on the support frame, a first polishing device, a second polishing device, a laser cutting device and a second pressing-down assembly. The driving assembly comprises two first support rollers arranged side by side and a first driving motor. One of the first support rollers is rotatably arranged on the support frame, and the other first support roller is fixedly arranged on the support frame. The two first support rollers are used for placing the bimetal composite pipe. The first driving motor is arranged on the support frame. The driving end of the first driving motor is connected with the first support roller.

2. The bi-metallic composite pipe trimming apparatus of claim 1, wherein, The first polishing device comprises a first polishing frame, a first pressing-down assembly, a first polishing assembly and a first screw mechanism. The first pressing-down assembly is arranged on the first polishing frame. The first pressing-down assembly is used for providing a driving force in the radial direction of the bimetal composite pipe.

3. The bimetallic composite pipe trimming apparatus of claim 1, wherein, The first polishing assembly comprises a second driving motor and a first polishing component. The second driving motor is connected with the driving end of the first pressing-down assembly. The first polishing component is connected with the driving end of the second driving motor. The second driving motor is used for driving the first polishing component to rotate and polish the outer wall of the bimetal composite pipe. The first screw mechanism is fixedly arranged on the support frame. The extension direction of the first screw mechanism is parallel to the axial direction of the bimetal composite pipe. The first screw mechanism is connected with the first polishing frame and is used for driving the first polishing frame to move along the axial direction of the bimetal composite pipe. The second polishing device is used for polishing the inner wall of the bimetal composite pipe. The laser cutting device has a laser outlet arranged towards the pipe wall of the axial two ends of the bimetal composite pipe. The laser outlet is used for emitting laser to the pipe wall of the bimetal composite pipe to cut the axial two ends of the bimetal composite pipe. The second pressing-down assembly is arranged on the support frame. The second pressing-down assembly is used for applying a pressing force on the bimetal composite pipe to the driving assembly. The number of the second pressing-down assemblies is two. The number of the laser cutting devices is two. Each laser cutting device comprises a support frame and a laser. The support frame is fixedly arranged on the second pressing-down assembly. The laser is fixedly arranged on the support frame. The laser is used for providing laser perpendicular to the axial direction of the bimetal composite pipe. The second pressing-down assembly comprises a hydraulic component and a pressing-down wheel. The hydraulic component is arranged on the support frame. The pressing-down wheel is connected with the driving pressing-down end of the hydraulic component. The number of the pressing-down wheels is two. The two pressing-down wheels are arranged at intervals along the circumferential direction of the bimetal composite pipe and are located on the two sides of the circumferential upper half of the bimetal composite pipe. The bimetal composite pipe trimming device further comprises a second screw mechanism. The second screw mechanism is arranged on the support frame. The extension direction of the second screw mechanism is parallel to the axial direction of the bimetal composite pipe. The second screw mechanism is connected with the second pressing-down assembly and is used for driving the second pressing-down assembly to move along the axial direction of the bimetal composite pipe.

4. The bimetallic composite pipe trimming apparatus of claim 1, wherein, The second polishing device comprises: a second polishing frame; a polishing table, which is arranged on the second polishing frame and moves along the axial direction of the bimetallic composite pipe; a third driving motor, which is fixed to the polishing table; a second polishing component, which is fixed to the driving end of the third driving motor and is used for polishing the inner wall of the bimetallic composite pipe.

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