Positioning device

Abstract

The invention discloses a positioning device, and relates to the technical field of welding. The positioning device comprises a fixed base, a first positioning piece and a second positioning piece, the first positioning piece is arranged on the fixed base, and the first component is detachably connected with the first positioning piece; the second positioning piece is arranged on the fixed base, and the second positioning piece and the first positioning piece are located on different sides of the fixed base; the second positioning piece is provided with a first positioning surface matched with the reference positioning part, and the first positioning surface is tightly attached to the reference positioning part so that the second part can be limited to move in the X-axis direction and the Y-axis direction; the fixed base is further provided with a second positioning face matched with the second component, and the second positioning face is tightly attached to the second component so that the second component can be limited to move in the Z-axis direction. The positioning device is used for improving the accuracy of positioning the position of the welding assembly and improving the welding quality, so that safe and stable operation of a pipeline system is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a positioning device. Background Art

[0002] In the field of pipeline welding, accurate angle positioning is a key factor to ensure welding quality and safe and stable operation of pipeline systems. However, existing welding tools have exposed many problems in pipeline angle positioning, such as low positioning accuracy, complex operation, and limited scope of application. The most serious problem is low positioning accuracy. This problem may lead to unstable quality of welded joints and may even cause safety hazards to pipeline systems.

[0003] At present, the welding positioning of pipelines generally adopts the method of manual adjustment. However, this traditional positioning method has obvious defects. The accuracy of manual operation is affected by many factors such as the operator's skill level, experience and working status, and it is difficult to ensure the accuracy and consistency of positioning. This makes it difficult to meet the requirements of high-precision welding, which seriously affects the welding quality and efficiency. Summary of the invention

[0004] The object of the present invention is to provide a positioning device for improving the accuracy of positioning a welding assembly, improving the welding quality, and thereby ensuring the safe and stable operation of a pipeline system.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a positioning device, which is used to position the position of a component during a welding process. The component includes a first component and a second component, and the second component is provided with a reference positioning portion. The positioning device includes: a fixed base, a first positioning piece and a second positioning piece; the first positioning piece is arranged on the fixed base, and the first component is detachably connected to the first positioning piece; the second positioning piece is arranged on the fixed base, and is located on a different side of the fixed base from the first positioning piece; the second positioning piece is provided with a first positioning surface that is compatible with the reference positioning portion, and the first positioning surface is tightly fitted with the reference positioning portion to limit the movement of the second component in the X-axis direction and the Y-axis direction; the fixed base is also provided with a second positioning surface that is compatible with the second component, and the second positioning surface is tightly fitted with the second component to limit the movement of the second component in the Z-axis direction.

[0007] In some embodiments, the reference positioning portion is a curved structure, the first positioning surface is a curved surface structure, and the bending direction and the bending curvature of the first positioning surface are respectively the same as the bending direction and the bending curvature of the reference positioning portion.

[0008] In some embodiments, the reference positioning portion includes a first positioning sub-portion and a second positioning sub-portion, and the bending directions of the first positioning sub-portion and the second positioning sub-portion are opposite; the first positioning surface includes a first contact surface and a second contact surface, and the bending direction and bending curvature of the first contact surface are the same as the bending direction and bending curvature of the first positioning sub-portion, and the bending direction and bending curvature of the second contact surface are the same as the bending direction and bending curvature of the second positioning sub-portion.

[0009] In some embodiments, a first fixing hole is formed on the reference positioning portion, and a second fixing hole corresponding to the first fixing hole is formed on the fixing base; a fixing member can connect the second component to the fixing base by passing through the first fixing hole and the second fixing hole at the same time.

[0010] In some embodiments, there are multiple first fixing holes, and the multiple first fixing holes are arranged at intervals on the reference positioning portion; the number of the second fixing holes is the same as the number of the first fixing holes, and the multiple second fixing holes are arranged in a one-to-one correspondence with the multiple first fixing holes.

[0011] In some embodiments, the first positioning member is provided with a first connecting portion, and the angle between the center line of the first connecting portion and the second positioning surface is a first preset angle; and the first component is detachably connected to the first connecting portion.

[0012] In some embodiments, the first positioning member further includes a second connecting portion, and the angle between the center line of the second connecting portion and the center line of the first connecting portion is a second preset angle; the assembly further includes a third component, and the third component is detachably connected to the second connecting portion.

[0013] In some embodiments, the first positioning member is detachably connected to the fixed base; and / or the second positioning member is detachably connected to the fixed base.

[0014] Beneficial effects of the present invention:

[0015] The present invention provides a positioning device for positioning a first component and a second component provided with a reference positioning portion during a welding process. The positioning device is provided with a fixed base, a first positioning member detachably connected to the first component and a second positioning member provided with a first positioning surface are provided on the fixed base, and a second positioning surface adapted to the second component is provided on the fixed base. The first positioning surface is tightly fitted with the reference positioning portion to limit the movement of the second component in the X-axis direction and the Y-axis direction, and the second positioning surface is tightly fitted with the second component to limit the movement of the second component in the Z-axis direction. In this way, when the positions of the first component and the second component need to be positioned during the welding process, the operator can first connect the first component to the first positioning component, use the first positioning component to fix the position of the first component, and then tightly fit the reference positioning portion on the second component with the first positioning surface on the second positioning component, and tightly fit the second component with the second positioning surface on the fixed base. Through this mechanical constraint method, the second component is prevented from being offset or misaligned relative to the first component. This not only improves the positioning accuracy between the two components during the welding process, but also greatly reduces the dependence on the operator's skills and experience, avoids positioning errors caused by manual operation, ensures welding quality, and ensures safe and stable operation of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural diagram of a positioning device, a first component and a third component provided by a specific embodiment of the present invention;

[0017] Figure 2 It is a structural diagram of a positioning device and a second component provided in a specific embodiment of the present invention.

[0018] In the figure:

[0019] 1, first component; 2, second component; 21, reference positioning portion; 211, first positioning sub-portion; 212, second positioning sub-portion; 213, first fixing hole; 3, fixing base; 31, second positioning surface; 32, second fixing hole; 4, first positioning member; 41, first connecting portion; 42, second connecting portion; 5, second positioning member; 51, first positioning surface; 511, first contact surface; 512, second contact surface; 6, third component;

[0020] X, X-axis direction; Y, Y-axis direction; Z, Z-axis direction. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly stipulated and limited, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them.

[0024] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0025] Combination Figure 1 , Figure 2 As shown, this embodiment provides a positioning device, which is used to position the position of the component during the welding process, and the component includes a first component 1 and a second component 2. A reference positioning portion 21 is provided on the second component 2. The positioning device includes: a fixed base 3, a first positioning member 4 and a second positioning member 5.

[0026] The fixing base 3 is, for example, a rectangular cube structure or a cylindrical structure. The fixing base 3 is used to support the second component 2 during the welding process and provide a mounting position for the first positioning member 4 and the second positioning member 5 .

[0027] The first positioning member 4 is arranged on the fixed base 3. Figure 1 Taking the perspective shown as an example, the first positioning member 4 is arranged on the outer side wall of the fixed base 3, and the connection between the two is, for example, welding or bolt connection. The first component 1 and the first positioning member 4 are detachably connected. For example, the first component 1 is a pipe, and the first component 1 and the first positioning member 4 are detachably connected by clamping, or by internal and external thread matching (the first component 1 is provided with internal threads, and the first positioning member 4 is provided with external threads).

[0028] The second positioning member 5 is also arranged on the fixing seat. Figure 1Taking the perspective shown as an example, the second positioning member 5 is arranged on the upper surface of the fixed base 3, and the connection between the two is, for example, welding or bolt connection. The second positioning member 5 is, for example, a block structure, and a first positioning surface 51 adapted to the above-mentioned reference positioning portion 21 is arranged on the second positioning member 5. The "adaptation" here refers to the same size (including the size in the X-axis direction X and the size in the Y-axis direction Y) and the same shape, so that the two are completely fitted. The above-mentioned fixed base 3 is also provided with a second positioning surface 31 adapted to the second component 2. Specifically, in combination with Figure 1 , Figure 2 As shown, the second positioning surface 31 is matched with the lower surface of the second component 2. Here, "matched" means that the appearance is the same so that the two are completely fitted.

[0029] The first positioning surface 51 and the reference positioning portion 21 are tightly fitted to limit the movement of the second component 2 in the X-axis direction X and the Y-axis direction Y. The second positioning surface 31 and the second component 2 are tightly fitted to limit the movement of the second component 2 in the Z-axis direction Z. The above-mentioned "tight fit" means that there is always a contact constraint between the outer surfaces of the two objects.

[0030] Therefore, the present embodiment provides a positioning device for positioning a first component 1 and a second component 2 provided with a reference positioning portion 21 during welding. The positioning device is provided with a fixed base 3, a first positioning member 4 detachably connected to the first component 1 and a second positioning member 5 provided with a first positioning surface 51 are provided on the fixed base 3, and a second positioning surface 31 adapted to the second component 2 is provided on the fixed base 3. By tightly fitting the first positioning surface 51 with the reference positioning portion 21, the movement of the second component 2 in the X-axis direction X and the Y-axis direction Y can be limited. By tightly fitting the second positioning surface 31 with the second component 2, the movement of the second component 2 in the Z-axis direction Z can be limited. In this way, when the positions of the first component 1 and the second component 2 need to be positioned during the welding process, the operator can first connect the first component 1 to the first positioning member 4, use the first positioning member 4 to fix the position of the first component 1, and then tightly fit the reference positioning portion 21 on the second component 2 with the first positioning surface 51 on the second positioning member 5, and tightly fit the second component 2 with the second positioning surface 31 on the fixed base 3. Through this mechanical constraint method, the second component 2 is prevented from being offset or misaligned relative to the first component 1. This not only improves the positioning accuracy between the two components during the welding process, but also greatly reduces the dependence on the operator's skills and experience, avoids positioning errors caused by manual operation, ensures welding quality, and ensures safe and stable operation of the pipeline system.

[0031] In some embodiments, in combination Figure 1 , Figure 2As shown, the reference positioning portion 21 on the second component 2 is a curved structure (e.g., a C-shaped curved structure or a wavy curved structure), and the first positioning surface 51 is a curved surface structure (e.g., a C-shaped curved surface or a wavy curved surface). The bending direction and the bending curvature of the first positioning surface 51 are respectively the same as the bending direction and the bending curvature of the reference positioning portion 21. In other words, the outer contour of the orthographic projection figure of the reference positioning portion 21 on the second component 2 on the fixed base 3 can overlap with the outer contour of the orthographic projection figure of the first positioning surface 51 on the second positioning member 5 on the fixed base 3.

[0032] In the above-mentioned positioning device, by setting the reference positioning portion 21 as a curved structure and setting the first positioning surface 51 as a curved surface structure, in this way, during the process of fitting and positioning the reference positioning portion 21 and the first positioning surface 51, the two arc structures (curved structure and curved surface structure) can automatically align under the action of the arc surface after contact, making the fitting process of the reference positioning portion 21 and the first positioning surface 51 smoother, and facilitating rapid positioning of the two.

[0033] In some embodiments, in combination Figure 1 , Figure 2 As shown, the reference positioning portion 21 includes a first positioning portion 211 and a second positioning portion 212, and the bending directions of the first positioning portion 211 and the second positioning portion 212 are opposite. Figure 2 Taking the viewing angle shown as an example, the first positioning sub-portion 211 is bent toward the negative direction of the Y axis, and the second positioning sub-portion 212 is bent toward the positive direction of the Y axis.

[0034] The first positioning surface 51 includes a first contact surface 511 and a second contact surface 512. The bending direction and curvature of the first contact surface 511 are the same as those of the first positioning sub-portion 211. The bending direction and curvature of the second contact surface 512 are the same as those of the second positioning sub-portion 212. In other words, the first contact surface 511 and the second contact surface 512 together form a wavy curved surface, and the wavy curved surface is compatible with the outer shape of the reference positioning portion 21.

[0035] Through the above arrangement, after the reference positioning portion 21 of the second component 2 is fitted and positioned with the first positioning surface 51, the first positioning sub-portion 211 is tightly fitted with the first contact surface 511 to limit the movement of the second component 2 in the X-axis direction X and the Y-axis direction Y. At the same time, the second positioning sub-portion 212 is tightly fitted with the second contact surface 512 to limit the movement of the second component 2 in the X-axis direction X and the Y-axis direction Y, thereby improving the reliability of limiting the second component 2 and ensuring the accuracy of positioning between the first component 1 and the second component 2.

[0036] In some embodiments, in combination Figure 1 , Figure 2 As shown, the reference positioning portion 21 is provided with a first fixing hole 213, and the center line of the first fixing hole 213 is perpendicular to the upper surface of the fixing base 3. The fixing base 3 is provided with a second fixing hole 32 corresponding to the first fixing hole 213, that is, the center line of the second fixing hole 32 is arranged colinearly with the center line of the first fixing hole 213. By passing the fixing member through the first fixing hole 213 and the second fixing hole 32 at the same time, the second component 2 can be connected to the fixing base 3, thereby limiting the movement of the second component 2 in the Z-axis direction Z. Exemplarily, the fixing member is a bolt, the first fixing hole 213 is a through hole, and the second fixing hole 32 is a through hole or a blind hole with an internal thread arranged inside. The bolt is inserted through the first fixing hole 213, and the threaded cooperation between the external thread at the end of the bolt and the internal thread inside the second fixing hole 32 is used to realize the connection between the bolt and the second fixing hole 32 of the fixing base 3, thereby realizing the connection between the second component 2 and the fixing base 3. It is easy to understand that, according to actual use requirements, the second fixing hole 32 can also be set as a through hole, and the first fixing hole 213 can be set as a through hole or a blind hole with an internal thread. When in use, the bolt can be inserted through the second fixing hole 32, and the external thread at the end of the bolt and the internal thread inside the first fixing hole 213 can be used to achieve the connection between the bolt and the first fixing hole 213 of the second component 2, thereby achieving the connection between the second component 2 and the fixed base 3. Through the above-mentioned settings, the connection between the second component 2 and the fixed base 3 can be achieved, thereby limiting the movement of the second component 2 in the Z-axis direction Z, avoiding the second component 2 from being offset relative to the fixed base 3 under the action of external force, ensuring the accuracy of positioning between the two, and having a simple structure and convenient processing and use.

[0037] It is easy to understand that the number of the first fixing hole 213 and the second fixing hole 32 can be set to multiple. Figure 1 , Figure 2 As shown, the number of the first fixing holes 213 is multiple (for example, two), and the multiple first fixing holes 213 are arranged at intervals on the reference positioning portion 21. At the same time, the same number of second fixing holes 32 as the first through holes (for example, two) is opened on the fixing base 3, and the multiple second fixing holes 32 are arranged in a one-to-one correspondence with the multiple first fixing holes 213. Through such an arrangement, multiple fixing members can be used to connect the second component 2 with the fixing base 3, thereby improving the firmness of the connection between the two and further ensuring the accuracy of the positioning of the second component 2.

[0038] In some embodiments, in combination Figure 1 , Figure 2As shown, the first positioning member 4 is provided with a first connecting portion 41, which is, for example, a cylindrical structure, and the angle between the center line of the first connecting portion 41 and the second positioning surface 31 on the fixed base 3 is a first preset angle, which is, for example, 180° or 45°. The first component 1 is detachably connected to the first connecting portion 41, and the detachable connection between the two is achieved by, for example, snap-fitting or threaded connection. By setting it in this way, the first component 1 can be detachably connected to the first positioning member 4 through the first connecting portion 41, and then the first positioning member 4 and the second positioning member 5 can be used to coordinate to achieve the positioning of the first component 1 and the second component 2, thereby ensuring the welding quality, having a simple structure, and being convenient for processing and manufacturing.

[0039] In some embodiments, Figure 1 As shown, the first positioning member 4 further includes a second connection portion 42, which is, for example, a cylindrical structure, and the angle between the center line of the second connection portion 42 and the center line of the first connection portion 41 is a second preset angle, which is, for example, 90° or 45°.

[0040] In addition to the first component 1 and the second component 2, the above-mentioned assembly also includes a third component 6, and the third component 6 is detachably connected to the second connecting portion 42. The detachable connection between the two is achieved by, for example, snap connection or threaded connection.

[0041] For example, Figure 1 , Figure 2 Taking the perspective shown as an example, the first component 1 and the third component 6 are cylindrical tubular structures, the first component 1 extends in the horizontal direction, the third component 6 is arranged perpendicular to the first component 1 (that is, extends in the vertical direction), the first component 1 and the third component 6 are both arranged on the side of the fixed base 3, and both are located on the same side of the fixed base 3; the main body of the second component 2 is a circular plate-like structure, and a reference positioning portion 21 is arranged on the circumferential side wall of the main body of the second component 2; the fixed base 3 is a rectangular block structure, the upper surface of the fixed base 3 is adapted to the lower surface of the main body of the second component 2 and the lower surface of the reference positioning portion 21, and the lower surface of the second component 2 is arranged in a fit with the upper surface of the fixed base 3; the first component 1 and the third component 6 are both arranged below the second component 2, and the lower surface of the second component 2 is arranged horizontally relative to the center line of the first component 1, and further, the center line of the third component 6 is arranged vertically relative to the lower surface of the second component 2.

[0042] It is easy to understand that the first preset angle and the second preset angle can be flexibly set according to the actual use environment, and this embodiment does not impose too many restrictions on the specific values ​​of the two.

[0043] In addition, more connecting parts can be arranged on the above-mentioned first positioning member 4, for example, a third connecting part, a fourth connecting part, etc., the center line of the third connecting part and the center line of the second connecting part 42 are arranged at an angle, and the center line of the fourth connecting part and the center line of the third connecting part are arranged at an angle; at the same time, the above-mentioned components can also include more components, such as a fourth component, a fifth component, etc., the fourth component and the fifth component are detachably connected to the third connecting part and the fourth connecting part respectively.

[0044] Through the above-mentioned arrangement, the first positioning member 4 can be detachably connected to multiple components (first component 1, third component 6) by setting multiple connecting parts (first connecting part 41, second connecting part 42), so that the positions of multiple components can be positioned at the same time, ensuring the accuracy of the positions of multiple components during welding, thereby improving the practicality of the above-mentioned positioning device.

[0045] In some embodiments, the first positioning member 4 is detachably connected to the fixed base 3, and / or the second positioning member 5 is detachably connected to the fixed base 3. That is, both the first positioning member 4 and the second positioning member 5 are detachably connected to the fixed base 3, or one of the first positioning member 4 and the second positioning member 5 is detachably connected to the fixed base 3, and the other is fixedly connected to the fixed base 3. Among them, the way in which the first positioning member 4 and the second positioning member 5 are detachably connected to the fixed base 3 is, for example: a plurality of bolt holes are respectively provided on the fixed base 3 corresponding to the first positioning member 4 and the second positioning member 5, and the first positioning member 4 and the second positioning member 5 are respectively detachably connected to the fixed base 3 by bolts; or, slots (such as dovetail slots or inverted trapezoidal slots) are respectively provided on the fixed base 3 corresponding to the first positioning member 4 and the second positioning member 5, and blocks (such as dovetail blocks or inverted trapezoidal blocks) are correspondingly provided on the first positioning member 4 and the second positioning member 5, so that the first positioning member 4 and the second positioning member 5 can be detachably connected to the fixed base 3 by sliding the blocks into the slots and utilizing the cooperation of the blocks and the slots.

[0046] Through the above-mentioned arrangement, when different types of components need to be welded and the positions of different types of first components 1 and second components 2 need to be positioned, the positions of different types of first components 1 and second components 2 can be positioned by disassembling and replacing different types of first positioning members 4 and second positioning members 5, thereby improving the applicability of the above-mentioned positioning device, eliminating the need to manufacture multiple types of positioning devices, and reducing material costs.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A positioning device for positioning a component during welding, the component comprising a first component (1) and a second component (2), the second component (2) being provided with a reference positioning portion (21), characterized in that: The positioning device comprises: A fixed base (3); A first positioning member (4) is arranged on the fixed base (3); the first component (1) and the first positioning member (4) are detachably connected; A second positioning member (5) is provided on the fixed base (3) and is located on a different side of the fixed base (3) from the first positioning member (4); the second positioning member (5) is provided with a first positioning surface (51) adapted to the reference positioning portion (21); the first positioning surface (51) is tightly fitted with the reference positioning portion (21) to limit the movement of the second component (2) in the X-axis direction (X) and in the Y-axis direction (Y); The fixed base (3) is also provided with a second positioning surface (31) adapted to the second component (2); the second positioning surface (31) is tightly fitted to the second component (2) and can limit the movement of the second component (2) in the Z-axis direction (Z).

2. The positioning device according to claim 1, characterized in that: The reference positioning portion (21) is a curved structure, the first positioning surface (51) is a curved surface structure, and the bending direction and bending curvature of the first positioning surface (51) are respectively the same as the bending direction and bending curvature of the reference positioning portion (21).

3. The positioning device according to claim 2, characterized in that: The reference positioning portion (21) comprises a first positioning sub-portion (211) and a second positioning sub-portion (212), wherein the bending directions of the first positioning sub-portion (211) and the second positioning sub-portion (212) are opposite; The first positioning surface (51) comprises a first contact surface (511) and a second contact surface (512); the bending direction and the bending curvature of the first contact surface (511) are the same as the bending direction and the bending curvature of the first positioning sub-portion (211); the bending direction and the bending curvature of the second contact surface (512) are the same as the bending direction and the bending curvature of the second positioning sub-portion (212).

4. The positioning device according to claim 1, characterized in that: The reference positioning portion (21) is provided with a first fixing hole (213), and the fixing base (3) is provided with a second fixing hole (32) corresponding to the first fixing hole (213); a fixing member passes through the first fixing hole (213) and the second fixing hole (32) at the same time, so as to connect the second component (2) with the fixing base (3).

5. The positioning device according to claim 4, characterized in that: The number of the first fixing holes (213) is multiple, and the multiple first fixing holes (213) are arranged at intervals on the reference positioning portion (21); the number of the second fixing holes (32) is the same as the number of the first fixing holes (213), and the multiple second fixing holes (32) are arranged in a one-to-one correspondence with the multiple first fixing holes (213).

6. The positioning device according to claim 1, characterized in that: The first positioning member (4) is provided with a first connecting portion (41), and the angle between the center line of the first connecting portion (41) and the second positioning surface (31) is a first preset angle; the first component (1) is detachably connected to the first connecting portion (41).

7. The positioning device according to claim 6, characterized in that: The first positioning member (4) further comprises a second connecting portion (42), wherein the angle between the center line of the second connecting portion (42) and the center line of the first connecting portion (41) is a second preset angle; the assembly further comprises a third component (6), wherein the third component (6) is detachably connected to the second connecting portion (42).

8. The positioning device according to claim 1, characterized in that: The first positioning member (4) is detachably connected to the fixed base (3); and / or, The second positioning member (5) is detachably connected to the fixed base (3).

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