An automatic welding device for copper-aluminum pipe processing

Abstract

The invention discloses an automatic welding device for copper and aluminum pipe processing, comprising a base, a telescopic device is arranged on the rear side of the top of the base and a welding device is arranged on the telescopic device, a welding positioning component one and a welding positioning component two are respectively arranged on both sides of the top of the base, and the welding positioning component one and the welding positioning component two have the same structure, the welding device is located between the welding positioning component one and the welding positioning component two, and a power component is transmission-connected between the welding positioning component one and the welding positioning component two, the whole process does not require position positioning by staff, only needs to insert and fix, start the welding device and the motor two, and use the welding device to weld the contact surfaces of the two copper and aluminum pipes, and during the welding process, the two copper and aluminum pipes are driven to rotate synchronously by starting the motor two to achieve circular welding, without complicated and precise positioning, and the pipe to be welded can be continuously inserted into the welding positioning component two for multi-segment welding.

Description

Technical Field

[0001] The invention belongs to the technical field of copper-aluminum tube welding, and in particular relates to an automatic welding device for copper-aluminum tube processing. Background Art

[0002] Copper-aluminum tube welding is to connect copper and aluminum materials into one by welding process to replace copper tubes. The density of aluminum is 1 / 3 of copper, and the price of aluminum tube is about 1 / 3 of copper tube. Using copper-aluminum tube to replace copper tube can reduce the cost and meet the market needs. However, the surface of aluminum is very easy to oxidize, and the oxide film formed is very strong, so mechanical connection is unreliable. At present, the market usually uses three methods to connect it: brazing, energy storage welding and manual workpiece resistance welding;

[0003] In the existing copper-aluminum pipe welding process, due to the shape of the pipe, the positioning of the pipe in the early stage of welding, the agreement of the center line of the circle, the arc of the welding, and the circular welding process of the entire welding process are all great challenges for manual labor and cannot form a more balanced welding quality. The automatic welding equipment does not have a good structure to achieve the positioning process and the continuous welding process of multiple pipes. Generally, automatic welding is performed after manual positioning. The manual intervention process in the middle affects the entire multi-stage welding process and is inefficient. Summary of the invention

[0004] The object of the present invention is to provide an automatic welding device for copper and aluminum tube processing to solve the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: an automatic welding device for copper and aluminum tube processing, comprising a base, a telescopic device is arranged on the rear side of the top of the base and a welding device is arranged on the telescopic device, a welding positioning component 1 and a welding positioning component 2 are arranged on both sides of the top of the base respectively, and the welding positioning component 1 and the welding positioning component 2 have the same structure;

[0006] The welding equipment is located between the welding positioning component 1 and the welding positioning component 2, and a power component is transmission-connected between the welding positioning component 1 and the welding positioning component 2;

[0007] The second welding positioning component includes a fixed vertical plate fixed on the base. A sleeve is movably connected inside the fixed vertical plate through a bearing. A gear ring is arranged on the outer side of one end of the sleeve penetrating through the fixed vertical plate. The gear ring is in transmission connection with the power component. A through groove is formed inside the sleeve, and a strip groove communicating with the center of the sleeve is formed inside the through groove. Moving rings are slidably connected inside the through grooves on both sides of the strip groove, and the moving rings at both ends of the strip groove are in a group. An active force fixing component for inwardly extruding the fixed steel pipe while being synchronously opened and closed by the two moving rings in this group is arranged on one group of the moving rings; a fixing component for inwardly extruding the fixed steel pipe while being synchronously opened and closed by the two moving rings in this group is arranged on the remaining groups of moving rings. The active force fixing component is a soft extrusion fixation, and the fixing component is a hard extrusion fixation. Thread rod assemblies are arranged inside multiple groups of the moving rings, and the rotation of the thread rod assemblies drives the two moving rings in each group to move relatively. The thread rod assemblies are externally connected to a first motor.

[0008] Preferably, the active force fixing component includes a first hinge component hinged to the two moving rings. The first hinge component is arranged in a V shape. A rubber wheel is movably connected at the hinge point between the first hinge components, and the rubber wheel is externally connected to a micro motor.

[0009] Preferably, the fixing component includes a second hinge component hinged to the two moving rings, and the structure of the second hinge component is the same as that of the first hinge component, also arranged in a V shape. A plastic wheel is movably connected at the hinge point between the second hinge components.

[0010] Preferably, the thread rod assembly includes a thread rod body in transmission connection with the first motor. Multiple regions with a first thread and a second thread are processed on the thread rod body, and adjacent first threads and second threads are in a group. Multiple groups of first threads and second threads are respectively adapted to the positions and quantities of multiple strip grooves. The second hinge component specifically includes two connecting arms. Moving blocks are hinged to one ends of the two connecting arms close to the thread rod assembly, and the two moving blocks are respectively threadedly connected to a first thread and a second thread in a group to realize the relative movement of the two connecting arms when the thread rod assembly rotates. The two moving blocks are respectively connected to the two moving rings in a group.

[0011] Preferably, the power component includes a synchronous shaft penetrating between the first welding positioning component and the second welding positioning component. A gear is key-connected to the synchronous shaft at the positions of the first welding positioning component and the second welding positioning component. The two gears are respectively meshed with the gear rings of the same structure on the first welding positioning component and the second welding positioning component to drive the two sleeves of the same structure to rotate synchronously. One end of the synchronous shaft is in transmission connection with a second motor.

[0012] Preferably, two infrared sensors which are centrosymmetric are arranged directly below the welding device at the top of the base, and the two infrared sensors are electrically connected to two rubber wheels on the first welding positioning assembly and the second welding positioning assembly respectively.

[0013] Preferably, a hollow moving path for the copper-aluminum tube is formed in the middle between the first welding positioning assembly and the second welding positioning assembly, and an extended welding auxiliary assembly installed on the base is arranged on one side of the first welding positioning assembly.

[0014] Preferably, the extended welding auxiliary assembly includes two telescopic rods installed on one side of the base. A base is fixedly arranged on one side of the two telescopic rods. A supporting arc plate is arranged on the top of the base and is used for supporting a relatively long section during continuous welding. A lockable telescopic rod is arranged between the supporting arc plate and the base.

[0015] Technical effects and advantages of the present invention: 1. Through the setting of multiple active force fixing components and fixing components, the center line of the copper-aluminum tube after fixing is always on the center line of the sleeve. Then, start the micro motor to increase the rolling friction by pressing the copper-aluminum tube with the rubber wheels. During the process that the rubber wheels drive the copper-aluminum tube to move to one side during rotation, the diameter of the rubber wheels is larger than that of the plastic wheels. When the moving positions of the plastic wheels and the rubber wheels are the same, and the rubber wheels are in the extrusion degree when the plastic wheels contact the outer circle of the copper-aluminum tube. During this period, the hard contact of the plastic wheels can fix the copper-aluminum tube by multiple plastic wheels without affecting the movement of the copper-aluminum tube. During the movement of the copper-aluminum tube, the infrared sensors are used to turn off the micro motor when the copper-aluminum tube moves directly above the infrared sensors. The installation and fixing of the copper-aluminum tube on the second welding positioning assembly are the same as those on the first welding positioning assembly, and the position movement is also detected by the corresponding infrared sensors. The whole process does not require the staff to perform position positioning. Only need to insert and fix it, and then start the welding device and the second motor to weld the contact surfaces of the two copper-aluminum tubes by the welding device. And during the welding process, the second motor is started to drive the two copper-aluminum tubes to rotate synchronously to realize circumferential welding. The whole process has a high degree of automation, and there is no need for cumbersome precise positioning and center positioning, and the operation is convenient;

[0016] 2. Both the first welding positioning assembly and the second welding positioning assembly are of hollow structures. When welding multiple sections of pipelines, at least one micro motor can be started to drive the welded copper-aluminum tube towards the extended welding auxiliary assembly, and the extended end is supported by the supporting arc plate. At this time, the staff can continuously insert the pipeline to be welded into the second welding positioning assembly for multi-section welding. Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present invention;

[0018] Figure 2 For the present invention Figure 1 Partial structure schematic diagram of part A in

[0019] Figure 3 Internal structure schematic diagram of the sleeve of the present invention;

[0020] Figure 4 Exploded view of the internal structure of the sleeve of the present invention;

[0021] Figure 5 For the present invention Figure 4 Partial structure schematic diagram of part B in

[0022] Figure 6 For the present invention Figure 4 Partial structure schematic diagram of part C in

[0023] Figure 7 Detailed structure schematic diagram of the threaded rod assembly of the present invention.

[0024] In the figure: 1. Extended welding auxiliary component; 101. Telescopic rod; 102. Base; 103. Support arc plate; 2. Welding positioning component one; 3. Telescopic device; 4. Welding device; 5. Welding positioning component two; 501. Sleeve; 502. Gear ring; 503. Through groove; 504. Active force fixing component; 5041. Hinge component one; 5042. Micro motor; 5043. Rubber wheel; 505. Fixing component; 5051. Plastic wheel; 5052. Hinge component two; 506. Threaded rod assembly; 5061. Threaded rod body; 5062. Thread one; 5063. Thread two; 507. Moving ring; 508. Strip-shaped groove; 509. Fixed vertical plate; 6. Motor two; 7. Base; 8. Synchronous shaft; 9. Infrared sensor; 10. Motor one; 11. Gear; 12. Connecting arm; 1201. Connecting arm body; 1202. Moving block. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides an automatic welding device for copper-aluminum pipes as shown in the figure, including a base 7. A telescopic device 3 is arranged at the rear side of the top of the base 7, and a welding device 4 is arranged on the telescopic device 3. Welding positioning components one 2 and two 5 are respectively arranged on both sides of the top of the base 7, and the welding positioning components one 2 and two 5 have the same structure;

[0027] The welding device 4 is located between the first welding positioning component 2 and the second welding positioning component 5, and a power component is drivingly connected between the first welding positioning component 2 and the second welding positioning component 5;

[0028] The second welding positioning component 5 includes a fixed vertical plate 509 fixed on the base 7. A sleeve 501 is movably connected inside the fixed vertical plate 509 through a bearing. A gear ring 502 is arranged on the outer side of one end of the sleeve 501 penetrating through the fixed vertical plate 509. The gear ring 502 is drivingly connected with the power component. A through groove 503 is opened inside the sleeve 501, and a strip-shaped groove 508 communicating with the center of the sleeve 501 is opened inside the through groove 503. Moving rings 507 are slidably connected inside the through groove 503 on both sides of the strip-shaped groove 508, and the moving rings 507 at both ends of the strip-shaped groove 508 are in a group. A main power fixing component 504 for inwardly extruding the fixed steel pipe while being synchronously opened and closed by the two moving rings 507 in this group is arranged on one group of the moving rings 507; A fixing component 505 for inwardly extruding the fixed steel pipe is arranged on the remaining groups of moving rings 507 while being synchronously opened and closed by the two moving rings 507 in this group. The main power fixing component 504 is a soft extrusion fixing, and the fixing component 505 is a hard extrusion fixing. Thread rod assemblies 506 are arranged inside multiple groups of moving rings 507, and the rotation of the thread rod assemblies 506 drives the two moving rings 507 in each group to move relatively. The thread rod assemblies 506 are externally connected to a first motor 10.

[0029] Specifically, the main power fixing component 504 includes a first hinge component 5041 hinged to the two moving rings 507. The first hinge component 5041 is arranged in a V shape. A rubber wheel 5043 is movably connected at the hinge point between the first hinge components 5041, and a micro motor 5042 is externally connected to the rubber wheel 5043. The fixing component 505 includes a second hinge component 5052 hinged to the two moving rings 507, and the structure of the second hinge component 5052 is the same as that of the first hinge component 5041 and is also arranged in a V shape. A plastic wheel 5051 is movably connected at the hinge point between the second hinge components 5052. The thread rod assembly 506 includes a thread rod body 5061 drivingly connected with the first motor 10. Areas with multiple first threads 5062 and second threads 5063 are processed on the thread rod body 5061, and adjacent first threads 5062 and second threads 5063 are in a group. Multiple groups of first threads 5062 and second threads 5063 respectively match the positions and quantities of multiple strip-shaped grooves 508. The second hinge component 5052 specifically includes two connecting arms 12. Moving blocks 1202 are hinged to one ends of the two connecting arms 12 close to the thread rod assembly 506, and the two moving blocks 1202 are respectively threadedly connected with a first thread 5062 and a second thread 5063 in a group to realize relative movement of the two connecting arms 12 when the thread rod assembly 506 rotates. The two moving blocks 1202 are respectively connected with the two moving rings 507 in a group.

[0030] Specifically, the power assembly includes a synchronous shaft 8 passing through between the welding positioning assembly one 2 and the welding positioning assembly two 5. At the positions of the synchronous shaft 8 at the welding positioning assembly one 2 and the welding positioning assembly two 5, a gear 11 is key-connected. The two gears 11 are respectively meshed and connected with the same-structure gear rings 502 on the welding positioning assembly one 2 and the welding positioning assembly two 5, so as to drive the synchronous rotation of the two sleeves 501 with the same structure. One end of the synchronous shaft 8 is drivingly connected with a motor two 6.

[0031] Specifically, two infrared sensors 9 which are centrosymmetric are arranged at the top of the base 7 directly below the welding device 4. The two infrared sensors 9 are respectively electrically connected with the two rubber wheels 5043 on the welding positioning assembly one 2 and the welding positioning assembly two 5.

[0032] Specifically, a hollow copper-aluminum tube moving path is formed in the middle between the welding positioning assembly one 2 and the welding positioning assembly two 5. On one side of the welding positioning assembly one 2, an extended welding auxiliary assembly 1 is installed on the base 7. The extended welding auxiliary assembly 1 includes two telescopic rods 101 installed on one side of the base 7. On one side of the two telescopic rods 101, a base 102 is fixedly arranged. On the top of the base 102, a support arc plate 103 is arranged and is used to support a relatively long section during continuous welding through the support arc plate 103. A lockable telescopic rod is arranged between the support arc plate 103 and the base 102.

[0033] Working principle: Example one, as Figures 1 - 7As shown, the staff can insert the copper-aluminum pipe to be welded into the interior of the first welding positioning component 2 from one side of the first welding positioning component 2. Then, start the first motor 10 on the first welding positioning component 2, and use the first motor 10 to drive the rotation of the threaded rod assembly 506. During the rotation, use the design of the first thread 5062 and the second thread 5063 on the threaded rod assembly 506 to drive the two moving blocks 1202 in a set to move relative to each other, and then squeeze the two connecting arms 12 to push the rubber wheel 5043 and the plastic wheel 5051 to press against the outer side of the copper-aluminum pipe to fix the copper-aluminum pipe. During this period, use the settings of the multiple main power fixing components 504 and the fixing components 505 to ensure that the center line of the fixed copper-aluminum pipe is always on the center line of the sleeve 501. Then, start the micro motor 5042 to increase the rolling friction by the pressure of the rubber wheel 5043 on the copper-aluminum pipe, so that the rubber wheel 5043 drives the copper-aluminum pipe to move to one side during rotation. During this period, the diameter of the rubber wheel 5043 is greater than that of the plastic wheel 5051, so that when the moving positions of the plastic wheel 5051 and the rubber wheel 5043 are the same, and when the plastic wheel 5051 contacts the outer ring of the copper-aluminum pipe, the rubber wheel 5043 is in an extrusion state. During this period, the rigid contact of the plastic wheel 5051 can fix the copper-aluminum pipe by multiple plastic wheels 5051 without affecting the movement of the copper-aluminum pipe. During the movement of the copper-aluminum pipe, use the setting of the infrared sensor 9 to turn off the micro motor 5042 when it moves to directly above the infrared sensor 9. The installation and fixation of the copper-aluminum pipe on the second welding positioning component 5 are the same as those of the first welding positioning component 2, and the position movement is also detected by the corresponding infrared sensor 9. The entire process does not require the staff to perform position positioning, only need to insert and fix it, and then start the welding equipment 4 and the second motor 6 to weld the contact surfaces of the two copper-aluminum pipes by using the welding equipment 4, and drive the two copper-aluminum pipes to rotate synchronously during the welding process by starting the second motor 6 to achieve circumferential welding. The entire process has a high degree of automation, and there is no need for cumbersome precise positioning and center positioning, and the operation is convenient;

[0034] Embodiment 2, as Figure 1 shown, by using the setting of the extended welding auxiliary component 1, and both the first welding positioning component 2 and the second welding positioning component 5 are hollow structures. When performing multi-section pipe welding, at least one micro motor 5042 can be started to drive the welded copper-aluminum pipe towards the extended welding auxiliary component 1, and one end that extends out is supported by the support arc plate 103. At this time, the staff can continuously insert the pipe to be welded into the interior of the second welding positioning component 5 for multi-section welding.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic welding device for copper-aluminum tube processing, comprising a base (7), characterized in that: A telescopic device (3) is provided at the rear side of the top of the base (7), and a welding device (4) is provided on the telescopic device (3). Welding positioning assemblies one (2) and two (5) are respectively provided on both sides of the top of the base (7), and the welding positioning assemblies one (2) and two (5) have the same structure; The welding device (4) is located between the welding positioning assembly one (2) and the welding positioning assembly two (5), and a power assembly is drivingly connected between the welding positioning assembly one (2) and the welding positioning assembly two (5); The welding positioning assembly two (5) includes a fixed vertical plate (509) fixed on the base (7). A sleeve (501) is movably connected inside the fixed vertical plate (509) through a bearing. A gear ring (502) is provided on the outer side of one end of the sleeve (501) penetrating through the fixed vertical plate (509). The gear ring (502) is drivingly connected with the power assembly. A through groove (503) is formed inside the sleeve (501), and a strip-shaped groove (508) communicating with the center of the sleeve (501) is formed inside the through groove (503). Moving rings (507) are slidably connected inside the through groove (503) on both sides of the strip-shaped groove (508), and the moving rings (507) at both ends of the strip-shaped groove (508) are in a group. An active force fixing assembly (504) for inwardly pressing a fixed steel pipe while being synchronously opened and closed by the two moving rings (507) in this group is provided on one group of the moving rings (507); a fixing assembly (505) for inwardly pressing a fixed steel pipe while being synchronously opened and closed by the two moving rings (507) in this group is provided on the remaining group of moving rings (507). The active force fixing assembly (504) is a soft extrusion fixation, and the fixing assembly (505) is a hard extrusion fixation. Thread rod assemblies (506) are provided inside multiple groups of the moving rings (507), and the rotation of the thread rod assemblies (506) drives the two moving rings (507) in each group to move relatively. The thread rod assemblies (506) are externally connected to a first motor (10); The active force fixing assembly (504) includes a first hinge assembly (5041) hinged to the two moving rings (507). The first hinge assembly (5041) is arranged in a V shape. A rubber wheel (5043) is movably connected at the hinge point between the first hinge assemblies (5041), and the rubber wheel (5043) is externally connected to a micro motor (5042); The fixing assembly (505) includes a second hinge assembly (5052) hinged to the two moving rings (507), and the structure of the second hinge assembly (5052) is the same as that of the first hinge assembly (5041), also arranged in a V shape. A plastic wheel (5051) is movably connected at the hinge point between the second hinge assemblies (5052).

2. The automatic welding device for copper-aluminum pipe processing according to claim 1, wherein: The screw rod assembly (506) includes a screw rod body (5061) which is in transmission connection with the first motor (10). A region with a plurality of first threads (5062) and second threads (5063) is machined on the screw rod body (5061), and adjacent first threads (5062) and second threads (5063) form a group. The positions and quantities of multiple groups of first threads (5062) and second threads (5063) respectively match those of multiple strip-shaped grooves (508). The second hinge assembly (5052) specifically includes two connecting arms (12). At one end of each of the two connecting arms (12) close to the screw rod assembly (506), a moving block (1202) is hinged, and the two moving blocks (1202) are respectively in threaded connection with the first thread (5062) and the second thread (5063) in a group, so that when the screw rod assembly (506) rotates, the two connecting arms (12) move relative to each other. The two moving blocks (1202) are respectively connected to two moving rings (507) in a group.

3. The automatic welding device for processing copper-aluminum tubes according to claim 1, characterized in that: The power assembly includes a synchronous shaft (8) passing through and welded between the first welding positioning assembly (2) and the second welding positioning assembly (5). At the positions of the synchronous shaft (8) in the first welding positioning assembly (2) and the second welding positioning assembly (5), a gear (11) is key-connected. The two gears (11) are respectively meshed with gear rings (502) of the same structure on the first welding positioning assembly (2) and the second welding positioning assembly (5) to drive two sleeves (501) of the same structure to rotate synchronously. One end of the synchronous shaft (8) is in transmission connection with the second motor (6).

4. The automatic welding device for copper-aluminum pipe processing according to claim 1, characterized in that: Below the welding device (4) directly, two infrared sensors (9) which are centrosymmetric are arranged at the top of the base (7). The two infrared sensors (9) are respectively electrically connected to two rubber wheels (5043) on the first welding positioning assembly (2) and the second welding positioning assembly (5).

5. The automatic welding device for copper-aluminum pipe processing according to claim 1, characterized in that: A hollow moving path for the copper-aluminum tube is formed in the middle between the first welding positioning assembly (2) and the second welding positioning assembly (5). On one side of the first welding positioning assembly (2), an extended welding auxiliary assembly (1) installed on the base (7) is provided.

6. The automatic welding device for copper-aluminum tube processing according to claim 5, wherein: The extended welding auxiliary assembly (1) includes two telescopic rods (101) installed on one side of the base (7). On one side of the two telescopic rods (101), a base (102) is fixedly arranged. At the top of the base (102), a supporting arc plate (103) is provided, and during continuous welding, a relatively long section is supported by the supporting arc plate (103). A lockable telescopic rod is arranged between the supporting arc plate (103) and the base (102).

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