A welding device with automatic detection and correction of autocollimator

Abstract

The present invention provides an autocollimator automatic detection and correction welding device for efficient and accurate welding of pipe columns. The device includes a base, a clamping device, an autocollimator, a reflector device and a welding device. The clamping device consists of a mounting plate, a chuck, a rotary drive mechanism and a support mechanism with adjustable height to support and limit the pipe column. The welding device includes a welding gun and a drive mechanism, which enables the welding gun to move along the length and height direction of the pipe column to achieve internal and external surface welding. The support mechanism includes a self-rotating support wheel and a lifting drive member to adapt to changes in the outer diameter of the pipe column and maintain coaxiality. The autocollimator detects the position and thickness of the weld, automatically controls the lifting drive member, and improves the degree of automation. In addition, the device also includes a cooling and smoke collection device to improve the welding environment. The device is suitable for pipe columns of different diameters, improves welding efficiency and quality, and reduces labor intensity.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a welding device with an autocollimator for automatic detection and correction. Background Art

[0002] In order to improve the wear resistance and corrosion resistance of underwater products, especially those used under the sea, and to reduce costs, a protective layer is usually welded on the surface of the parts. For example, underwater products are used for metal pipes, and a layer of solder needs to be welded on the outer and inner surfaces of the metal pipes, such as S216 aluminum-nickel bronze welding wire, to form a protective layer. The solder layer covers the inner and outer surfaces of the copper pipe 360 ​​degrees around the periphery to protect the metal pipe and extend the life of the metal pipe.

[0003] Most of the existing pipe column welding equipment fixes the pipe column, and then welds certain specific parts on the outer wall of the pipe column through a welding gun, which cannot achieve welding a layer of material on the entire outer and inner surfaces of the pipe column. For example, CN202310513625,7 discloses a large pipe column welding forming system, which fixes the pipe column by clamping the pipe column inside and outside with an outer clamping block and an inner clamping block. The welding shaft can be deflected on the mounting plate by rotating the axis to adjust the inclination angle of the welding shaft. The ball head block can be deflected on the inner side of the receiving shaft, and the angle position of the ball head block can be adjusted at all angles, thereby driving the welding head to adjust the angle and achieve welding of the clamped pipe column. Since the pipe particles are clamped and fixed by the outer clamping block and the inner clamping block, the parts blocked by the outer clamping block and the inner clamping block cannot be welded, so it is impossible to weld a layer of solder on the entire outer and inner surfaces of the pipe column. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a welding device with an autocollimator for automatic detection and correction.

[0005] The embodiment of the present invention provides a welding device for automatic detection and correction of an autocollimator, wherein the weldment 1 is a cylindrical tube with a circular cross section, and the welding device for automatic detection and correction of an autocollimator comprises:

[0006] The base 14 is provided with a clamping device for supporting and limiting the pipe column of the weldment 1, an autocollimator 20, a reflector device 18 clamped on the outer surface of the weldment 1, and a welding device 19 for welding the pipe column of the weldment 1.

[0007] In some embodiments, the clamping device comprises:

[0008] A mounting plate 10, a chuck 11 for clamping the pipe column of the weldment 1, the rotation drive mechanism 9 for driving the chuck 11 to rotate, and at least one support mechanism 12 for supporting the pipe column spaced apart along the length direction of the pipe column of the weldment 1, wherein the height of the support mechanism 12 is adjustable.

[0009] In some embodiments, the welding device 19 includes a welding gun 4 and a welding gun driving mechanism, and the welding gun driving mechanism drives the welding gun 4 to move along the length direction and height direction of the pipe string of the weldment 1 to weld the inner surface and the outer surface of the pipe string of the weldment 1.

[0010] In some embodiments, the support mechanism 12 includes two rotatable support wheels 2 spaced apart along the width direction of the pipe column, and a lifting drive member for driving the two support wheels 2 to rise and fall.

[0011] In some embodiments, the support mechanism 12 further includes an autocollimator small-angle detection device for detecting whether the weld seam reaches the support wheel 2 .

[0012] In some embodiments, the welding gun driving mechanism includes:

[0013] A guide rail 15, a first bracket 16 arranged on the guide rail 15, a column 21 installed on the first bracket 16, a second bracket 8 vertically slidably connected to the column 21, a crossbeam installed on the second bracket 8, a first driving member driving the first bracket 16 to move along the length direction of the weldment 1 pipe column, and a second driving member driving the second bracket 8 to move vertically on the column 21, and the welding gun 4 is installed at the end of the crossbeam.

[0014] In some embodiments, the welding gun driving mechanism further includes a third bracket 17 slidably connected to the first bracket 16 , and a third driving member driving the third bracket 17 to move along the width direction of the pipe string of the weldment 1 .

[0015] In some embodiments, the cross beam is a telescopic rod structure that can be extended and retracted along the length direction of the weldment 1 pipe column, and the cross beam includes a first beam body 6 fixedly connected to the second bracket 8, a second beam body 7 slidably connected to the first beam body 6, and a fourth driving member that drives the second beam body 7 to slide along the length direction of the first beam body 6, and the welding gun 4 is installed at the end of the second beam body 7.

[0016] In some embodiments, the autocollimator automatic detection and correction welding device further includes a cooling device 3 that can move with the welding gun 4 and cools the welding position of the welding gun 4 .

[0017] In some embodiments, the autocollimator automatic detection and correction welding device further includes a smoke collector 5 that can move with the welding gun 4 and collects smoke from the welding position of the welding gun 4 .

[0018] The beneficial effects of the above embodiments include:

[0019] Improve welding efficiency: By automatically detecting and correcting the welding device, there is no need to turn around to clamp the pipe column, which shortens the welding time, especially for large pipe columns, saving time and manpower spent on each clamping.

[0020] Maintain the coaxiality of the pipe string: The support mechanism automatically lowers the support height according to the data of the autocollimator to adapt to the increase in the outer diameter of the pipe string and maintain the coaxiality of the pipe string.

[0021] Adapt to pipes of different diameters: The support wheel can rotate and rise and fall to adapt to pipes of different diameters, making the welding equipment more adaptable.

[0022] High degree of automation: The operation of the lifting drive is automatically controlled by the autocollimator small angle detection device, eliminating the need for manual observation of the weld position and manual control of the lifting drive, thus reducing labor intensity.

[0023] Improve welding quality: The height of the support wheel can be adjusted in real time through the weld thickness detection device. The height of the support wheel can be adjusted according to different weld thicknesses to improve the coaxiality effect of welding.

[0024] Adjustment flexibility: The distance between the two support wheels can be adjusted by sliding the mounting bracket horizontally to adapt to changes in pipe diameter, thus increasing the adjustment flexibility of the equipment.

[0025] Precise positioning of welding gun: The design of the welding gun drive mechanism enables the welding gun to move precisely along the length and height directions of the pipe column, thus improving the accuracy of welding.

[0026] Adjustable weld width: The crossbeam is a retractable telescopic rod structure, which allows the welding gun to reciprocate left and right, changing the width of each weld circle and increasing the flexibility of welding.

[0027] Improved welding environment: including cooling device and fume collector, which can move with the welding gun to cool the welding area and collect fume, thus improving the welding environment.

[0028] Easy operation: Through automation and precise control, the operation process is simplified, making the operation easier and improving work efficiency.

[0029] These benefits together improve the efficiency, quality and ease of operation of the welding process while reducing labor intensity and environmental impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0031] Figure 1 The present invention is a schematic structural diagram of an automatic detection and correction welding device of an autocollimator according to an embodiment of the present invention.

[0032] Explanation of symbols:

[0033] 1-weldment; 2-support wheel; 3-cooling device; 4-welding gun; 5-smoke collector; 6-first beam; 7-second beam; 8-second bracket; 9-rotation drive mechanism; 10-mounting plate; 11-chuck; 12-support mechanism; 14-base; 15-guide rail; 16-first bracket; 17-third bracket; 18-reflector; 19-welding device; 20-autocollimator; 21-column. DETAILED DESCRIPTION

[0034] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0035] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0036] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0037] The embodiment of the present invention provides a welding device for automatic detection and correction of an autocollimator, such as Figure 1 As shown, the weldment 1 is a cylindrical tube with a circular cross-section. The autocollimator automatic detection and correction welding device includes: a base 14, on which is provided a clamping device for supporting and limiting the tube column, an autocollimator 20, a reflector device 18 clamped on the outer surface of the weldment, and a welding device 19 for welding the tube column.

[0038] The clamping device includes a mounting plate 10, a chuck 11 for clamping a pipe column, a rotation drive mechanism 9 for driving the chuck 11 to rotate, and at least one support mechanism 12 for supporting the pipe column arranged at intervals along the length direction of the pipe column, and the height of the support mechanism 12 can be adjusted. The mounting plate 10 is arranged on a base 14, and the rotation drive mechanism 9 and the chuck 11 are arranged on both sides of the mounting plate 10.

[0039] The welding device 19 includes a welding gun 4 and a welding gun driving mechanism. The welding gun driving mechanism drives the welding gun to move along the length direction and height direction of the pipe string to weld the inner surface and the outer surface of the pipe string.

[0040] In the above technical solution, the chuck 11 clamps one end of the pipe string, the support mechanism 12 supports the pipe string, the rotary drive mechanism 9 drives the chuck 11 to rotate, the pipe string chuck 11 rotates slowly, and the welding gun 4 starts welding from the outer surface / inner surface of one end of the pipe string. As the pipe string rotates, the welding gun 4 welds a circle of weld with a certain width on the outer surface / inner surface of the pipe string; after one circle of welding is completed, the welding gun drive mechanism drives the welding gun 4 to move to feed, and the feeding distance is the width of the weld, so that circles of welds are welded on the outer surface of the pipe string, and the circles of welds are connected one by one. The outer surface of the pipe column is connected to form a welding layer; and after the solder is welded on the outer surface of the pipe column, the outer diameter of the pipe column increases. When the weld seam reaches the support mechanism 12, the support mechanism 12 reduces the support height to adapt to the increase in the outer diameter of the pipe particle. The autocollimator 20 forms parallel light through the objective lens after the light passes through the graticule located on the focal plane of the objective lens. The parallel light is reflected back by the reflector perpendicular to the optical axis, and then passes through the objective lens to form a composite of the graticule mark paper image and the marking line on the focal plane. When the reflector tilts a small angle, the reflected light tilts 2 degrees. The support mechanism 12 reduces the support height according to the data of the autocollimator 20 to adapt to the increase in the outer diameter of the pipe column and maintain the coaxiality of the pipe column, thereby eliminating the need to turn around to clamp the pipe column, shortening the welding time. Especially for large pipe columns, each clamping takes a lot of time and is very labor-intensive.

[0041] In a preferred embodiment of the present invention, the support mechanism 12 includes two rotatable support wheels 2 spaced apart along the width direction of the pipe column, and a lifting drive member for driving the two support wheels to lift and lower. The axis of the support wheel 2 is parallel to the axis of the pipe column. When the chuck 11 clamps and fixes the pipe column, the pipe column is located between the two support wheels 2 and the outer surface of the pipe column is tangent to the outer surfaces of the two support wheels 2.

[0042] In the above technical solution, when the pipe column chuck 11 rotates, the support wheel 2 supports the pipe column on both sides, and at the same time the support wheel 2 rotates to reduce the rotational friction resistance; when the weld reaches the support wheel 2, the lifting drive member drives the support wheel 2 to lower to adapt to the increase in the outer diameter of the pipe column; in addition, when the diameter of the pipe column changes, the two support wheels 2 can be lifted and lowered to adapt to the change in the diameter of the pipe column, so that the welding equipment can be suitable for welding pipe columns of different diameters.

[0043] In a preferred embodiment of the present invention, the support mechanism 12 also includes an in-place autocollimator small-angle detection device for detecting whether the weld seam reaches the support wheel 2, the signal input end of the in-place autocollimator small-angle device is connected to the in-place output end of the data processing unit, the signal output end of the in-place autocollimator small-angle device is connected to the in-place input end of the controller, and the lower control end of the controller is connected to the descending start end of the lifting drive component.

[0044] The above technical solution measures the angle by setting up an autocollimator device in place to determine whether the weld has reached the support wheel 2, so as to automatically control the operation of the lifting drive component. This eliminates the need for manual observation of the weld position and manual control of the lifting drive component, thereby reducing human labor intensity and improving the degree of automation of the welding equipment.

[0045] In a preferred embodiment of the present invention, the in-position reflector device is installed at one end of the outer surface of the pipe column, the autocollimator 20 angle detection device is on the bracket of the welding arm, and the reflector 18 and the autocollimator 20 angle detection device are on the same axis. The two support wheels 2 are driven by two lifting drive members respectively, and the data processing unit controls the lifting drive member to work according to the weld in-position information detected by the angle change of the autocollimator 20 angle detection device and the axis change, and the rotation speed of the pipe column so that the two support wheels 2 in the same circumferential sequence are lowered successively.

[0046] In the above technical solution, when the weld is in place information detected by the angle change and axis change detection of the angle detection device of the collimator 20 detects that the weld is in place, the weld has not yet rotated to the support wheel 2 by the pipe column. The support wheel 2 to which the weld rotates will lower its height, and the two support wheels 2 will not lower their heights together, so that the coaxiality adjustment effect is better.

[0047] In a preferred embodiment of the present invention, the support mechanism 12 also includes a weld thickness detection device for detecting the thickness of the weld reaching the support wheel 2, the signal output end of the weld thickness detection device is connected to the weld thickness input end of the controller, and the descent stop control end of the controller is connected to the descent stop end of the lifting drive member.

[0048] In the above technical solution, the controller controls the operation of the lifting drive member according to the weld thickness detected by the weld thickness detection device, so as to adaptively adjust the height of the support wheel 2 when it descends, and as the weld gradually thickens, the support wheel 2 gradually lowers, thereby the height of the support wheel 2 can be adjusted in real time according to different weld thicknesses, further improving the coaxiality adjustment effect.

[0049] In another preferred embodiment of the present invention, the support wheel 2 is rotatably mounted on the mounting frame via a rotating shaft, the mounting frame is connected to a laterally arranged support plate via a pulley along the width direction of the pipe column, the mounting frame is detachably fixed to the support plate via a locking member, and the lifting drive member is connected to the support plate and drives the support plate to move vertically.

[0050] In the above technical solution, the distance between the two support wheels 2 can be adjusted by sliding the mounting frame transversely on the support plate, thereby also being able to adapt to changes in the diameter of the pipe column by adjusting the distance between the two support wheels 2.

[0051] In another preferred embodiment of the present invention, the welding gun driving mechanism includes a guide rail 15, a first bracket 16 disposed on the guide rail 15, a column 21 mounted on the first bracket 16, a second bracket 8 vertically slidably connected to the column 21, a crossbeam mounted on the second bracket 8, a first driving member driving the first bracket 16 to move along the length direction of the pipe column so that the crossbeam moves therewith, and a second driving member driving the second bracket 8 to move vertically on the column 21 so that the crossbeam is lifted and lowered, and the welding gun 4 is mounted at the end of the crossbeam. The extension direction of the guide rail 15 corresponds to the length direction of the pipe column of the weldment 1.

[0052] In the above technical solution, the first driving member drives the first bracket 16 to move linearly so that the welding gun 4 moves along the length direction of the pipe string, and the second driving member drives the second bracket 8 to move vertically so that the welding gun 4 moves along the height direction of the pipe string.

[0053] In another preferred embodiment of the present invention, the welding gun driving mechanism also includes a third bracket 17 slidably connected to the first bracket 16, and a third driving member driving the third bracket 17 to move along the width direction of the pipe column, and the lower end of the column 21 is fixed on the third bracket 17.

[0054] The above technical solution, by providing the third bracket 17 and the third driving member, allows the welding gun 4 to move forward and backward, which is beneficial to adjusting the position of the welding gun 4 on the inner and outer surfaces of the pipe column.

[0055] In another preferred embodiment of the present invention, the cross beam is a telescopic rod structure that can be extended and retracted along the length direction of the pipe column. The cross beam includes a first beam body 6 fixedly connected to the second bracket 8, a second beam body 7 slidably connected to the first beam body 6, and a fourth driving member that drives the second beam body 7 to slide along the length direction of the first beam body 6. The welding gun 4 is installed at the end of the second beam body 7.

[0056] In the above technical solution, the crossbeam is a telescopic rod structure that can be extended and retracted along the length direction of the pipe column, thereby the width of each weld circle can be changed by moving the welding gun 4 back and forth.

[0057] In another preferred embodiment of the present invention, the welding equipment also includes a cooling device 3 that can move with the welding gun 4 to cool the welding point of the welding gun; the welding equipment also includes a smoke collector 5 that can move with the welding gun 4 to collect the smoke at the welding point of the welding gun.

[0058] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An autocollimator automatic detection and correction welding device, characterized in that: The weldment (1) is a cylindrical tube with a circular cross section. The autocollimator automatic detection and correction welding device comprises: A base (14) is provided on which a clamping device for supporting and limiting the pipe column of the weldment (1), an autocollimator (20), a reflector device (18) clamped on the outer surface of the weldment (1), and a welding device (19) for welding the pipe column of the weldment (1) is provided.

2. The autocollimator automatic detection and correction welding device according to claim 1, characterized in that: The clamping device comprises: A mounting plate (10), a chuck (11) for clamping the pipe column of the weldment (1), a rotation drive mechanism (9) for driving the chuck (11) to rotate, and at least one support mechanism (12) for supporting the pipe column and arranged at intervals along the length direction of the pipe column of the weldment (1), wherein the height of the support mechanism (12) is adjustable.

3. The autocollimator automatic detection and correction welding device according to claim 1, characterized in that: The welding device (19) comprises a welding gun (4) and a welding gun driving mechanism, wherein the welding gun driving mechanism drives the welding gun (4) to move along the length direction and the height direction of the weldment (1) pipe column to weld the inner surface and the outer surface of the weldment (1) pipe column.

4. The autocollimator automatic detection and correction welding device according to claim 2, characterized in that: The support mechanism (12) comprises two rotatable support wheels (2) spaced apart in the width direction of the pipe column, and a lifting drive member for driving the two support wheels (2) to rise and fall.

5. The autocollimator automatic detection and correction welding device according to claim 4, characterized in that: The support mechanism (12) also comprises an in-place autocollimator small angle detection device for detecting whether the weld seam reaches the support wheel (2).

6. The autocollimator automatic detection and correction welding device according to claim 1, characterized in that: The welding gun driving mechanism comprises: A guide rail (15), a first bracket (16) arranged on the guide rail (15), a column (21) installed on the first bracket (16), a second bracket (8) vertically slidably connected to the column (21), a crossbeam installed on the second bracket (8), a first driving member driving the first bracket (16) to move along the length direction of the weldment (1) pipe column, and a second driving member driving the second bracket (8) to move vertically on the column (21), and the welding gun (4) is installed at the end of the crossbeam.

7. The autocollimator automatic detection and correction welding device according to claim 6, characterized in that: The welding gun driving mechanism also includes a third bracket (17) slidably connected to the first bracket (16), and a third driving member driving the third bracket (17) to move along the width direction of the weldment (1) pipe column.

8. The autocollimator automatic detection and correction welding device according to claim 6, characterized in that: The cross beam is a telescopic rod structure that can be extended and retracted along the length direction of the weldment (1) pipe column, and the cross beam includes a first beam body (6) fixedly connected to the second bracket (8), a second beam body (7) slidably connected to the first beam body (6), and a fourth driving member that drives the second beam body (7) to slide along the length direction of the first beam body (6), and the welding gun (4) is installed at the end of the second beam body (7).

9. The autocollimator automatic detection and correction welding device according to claim 1, characterized in that: The autocollimator automatic detection and correction welding device also includes a cooling device (3) that can move with the welding gun (4) and cools the welding position of the welding gun (4).

10. The autocollimator automatic detection and correction welding device according to claim 1, characterized in that: The autocollimator automatic detection and correction welding device also includes a smoke collector (5) that can move with the welding gun (4) and collects smoke at the welding point of the welding gun (4).

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