A welding positioning fixture for arch frame connecting plate

Abstract

The present application belongs to the field of arch frame processing, and specifically discloses a welding positioning fixture for an arch frame connecting plate, which includes a plurality of positioning brackets, which can be detachably connected to the connecting plate of the arch frame with the arch frame segment of the arch frame as the center, and each of the plurality of positioning brackets has a plurality of first clamping openings for clamping the wing plate of the arch frame segment. The positioning fixture of the present application can accurately clamp and position the arch frame segment on the surface of the connecting plate, so that when the arch frame segment and the connecting plate are welded, it is not easy for the connecting plate to be misaligned or the perforation hole position to deviate, so that the qualified rate of the finished arch frame products can be greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of arch frame processing, and more specifically, relates to a welding positioning fixture for an arch frame connecting plate. Background Art

[0002] The arch frame is an important structure used to support and reinforce the tunnel structure. It can share the load on the tunnel structure, reduce the stress on the tunnel itself, and extend the service life of the tunnel.

[0003] In the related art, the arch frame is made of pre-bent arched I-beams, and the full ring of the arch frame includes a plurality of arch frame segments assembled in sequence. Figure 1 As shown, a connecting plate 2 with a through hole 2-1 is usually welded at the end of the arch frame segment 1, and the through hole 2-1 is used to install bolts; during construction, the connecting plates 2 of adjacent arch frame segments 1 are pressed against each other, and the two connecting plates 2 are connected by bolts to realize the assembly of the arch frame.

[0004] In the process of processing the arch frame, in order to ensure that the arch frame connection is straight and the connecting plate can be closely attached to the arch frame section, it is usually necessary to make the welding error between the connecting plate and the arch frame section small enough. However, in the traditional arch frame processing technology, the welding of the connecting plate mostly relies on the naked eye and experience of the staff, which has problems such as slow welding speed, easy misalignment of the connecting plate, and easy deviation of the perforation positions of adjacent connecting plates during subsequent splicing. These problems make the qualified rate of the finished arch frame low, and often require a lot of rework during processing, which greatly affects the processing quality and progress of the arch frame. Utility Model Content

[0005] In response to the defects or improvement needs of the prior art, the present application provides an arch frame connecting plate welding positioning fixture, which aims to improve the problem of low qualified rate of finished arch frames.

[0006] The present application provides an arch frame connecting plate welding positioning fixture comprising a plurality of positioning brackets, wherein the plurality of positioning brackets are detachably connected to the connecting plate of the arch frame with the arch frame segment of the arch frame as the center, and the plurality of positioning brackets each have a plurality of first clamping openings for clamping the wing plate of the arch frame segment.

[0007] Through the above technical scheme conceived by the present application, compared with the prior art, when welding the arch frame segments and the connecting plates of the arch frame, since the positioning fixture can be fixed on the connecting plate, and the multiple first clamping openings on the positioning fixture can clamp and position the wing plates of the arch frame segments, the arch frame segments can be accurately positioned on the surface of the connecting plate under the clamping of the positioning fixture; and under the clamping and positioning of the arch frame segments by the positioning fixture, the staff can conveniently perform welding between the arch frame segments and the connecting plates, which is conducive to improving the speed of the welding operation, so that when the arch frame segments of the arch frame are connected, it is not easy to have the connecting plates misaligned and the perforation holes deviate, so that the qualified rate of the finished arch frame products can be greatly improved.

[0008] As further preferred, the positioning bracket includes: a supporting section for detachably connecting to the arch section, a clamping section with the first clamping opening, and a connecting section for connecting the supporting section and the clamping section.

[0009] As further preferred, the support section has a second clamping opening for clamping the wing plate of the arch section.

[0010] As a further preference, the support segment has a first avoidance opening, and when the positioning bracket clamps the arch segment, the first avoidance opening faces the junction between the web and the connecting plate of the arch segment.

[0011] As a further preference, the connecting section is located on the same side of the supporting section and the clamping section, and when the positioning bracket clamps the arch section, a gap is formed between the connecting section and the wing plate of the arch section.

[0012] As further preferred, the clamping section is provided with a second avoidance opening, and the second avoidance opening and the first clamping opening are located on the same side of the clamping section.

[0013] As further preferred, the connecting section is displaceably and adjustably arranged on the supporting section, and an adjusting structure for adjusting the installation position of the connecting section is provided between the supporting section and the connecting section.

[0014] As a further preference, a guiding structure for guiding the connecting section is provided between the connecting section and the supporting section.

[0015] As a further preference, a positioning rod for penetrating the through hole of the connecting plate is fixed to one end of the supporting section away from the connecting section, and a positioning piece for locking the positioning rod at the through hole is detachably connected to the positioning rod.

[0016] As further preferred, the outer circumference of the positioning rod has an external thread, and the positioning piece is a nut that can be screwed onto the external thread of the positioning rod.

[0017] In general, the above technical solutions conceived by this application have the following technical advantages compared with the prior art:

[0018] 1. When welding the arch frame segments and connecting plates of the arch frame, since the positioning fixture is fixed on the connecting plate, and the multiple first clamping openings on the positioning fixture can clamp and position the wing plates of the arch frame segments, the arch frame segments can be accurately positioned on the surface of the positioning bracket under the clamping of the positioning fixture, thereby facilitating the staff to perform accurate welding between the arch frame segments and the connecting plates, which is conducive to improving the speed of the welding operation, making it less likely for the connecting plates to be misaligned and the perforation holes to deviate when the arch frame segments are connected, thereby greatly improving the qualified rate of the finished arch frame products.

[0019] 2. The positioning fixture can be assembled on the positioning bracket based on the preset perforations on the positioning bracket, so that the positioning fixture can not only clamp and position the arch frame segment on the positioning bracket, making it convenient for the staff to weld between the positioning bracket and the arch frame segment, but also maintain good positioning accuracy between the arch frame segment and the perforations on the positioning bracket, making it less likely for the perforations to be misplaced during subsequent assembly.

[0020] 3. The adjustment structure can adjust the position of the connecting section on the supporting section, making it convenient for the clamping section and the supporting section to clamp and position the arch sections with different curvatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the connection structure of the arch frame section and the connection plate in the background technology of this application;

[0022] Figure 2 It is a schematic diagram of the installation structure of the positioning fixture, the arch frame segment and the connecting plate provided in the embodiment of the present application;

[0023] Figure 3 is a schematic diagram of the structure of the positioning bracket provided in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of the support section, connecting section, guide rod and adjusting screw provided in the embodiment of the present application.

[0025] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0026] 1. Arch section; 2. Connecting plate; 2-1. Perforation; 3. Support section; 3-1. Second clamping opening; 3-2. First avoidance opening; 4. Clamping section; 4-1. First clamping opening; 4-2. Second avoidance opening; 5. Connecting section; 6. Positioning rod; 7. Nut; 8. Guide rod; 9. Adjustment screw; 10. Gasket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] The following is combined with Figure 2-4 This application is described in further detail.

[0029] The present application embodiment discloses a welding positioning fixture for an arch frame connecting plate. Figure 2-3 The arch frame connecting plate welding positioning fixture includes multiple positioning brackets, which are detachably connected to the connecting plate 2 of the arch frame with the arch frame segment 1 of the arch frame as the center, and the multiple positioning brackets all have multiple first clamping ports 4-1 for clamping the wing plate of the arch frame segment 1.

[0030] Specifically, in this embodiment, two positioning brackets are provided, and the two positioning brackets are used to be mirror-mounted on the surface of the connecting plate 2 of the arch frame, and each positioning bracket is provided with two first clamping openings 4-1. In other embodiments, the positioning brackets can also be set to four or other numbers, etc., as long as they can achieve multi-point clamping of the arch frame segment 1. When the positioning brackets are set to four, the four positioning brackets can be distributed in a matrix shape and clamp the edges of the wing plates of the arch frame segment one by one.

[0031] Furthermore, the positioning bracket includes a supporting section 3, a clamping section 4 and a connecting section 5, wherein the supporting section 3 is used for detachably connecting with the arch section 1; the clamping section 4 has the first clamping opening 4-1 mentioned above, which is used for clamping the arch section 1; and the connecting section 5 is used for connecting the supporting section 3 and the clamping section 4.

[0032] like Figure 3 As shown, in this embodiment, the support section 3 has two second clamping openings 3-1 for clamping the wing plate of the arch section 1, and the support section 3 also has a first avoidance opening 3-2, the first avoidance opening 3-2 is located between the two first clamping openings 4-1, and the first avoidance opening 3-2 is semicircular. When the positioning bracket clamps the arch section 1, the support section 3 and the clamping section 4 clamp the arch section 1 together, and the first avoidance opening 3-2 faces the junction of the web of the arch section 1 and the connecting plate 2, which is convenient for the staff to perform welding operations.

[0033] In this embodiment, the connecting section 5 is fixed to the same side of the supporting section 3 and the clamping section 4, so that the positioning bracket is in a C shape as a whole. In other embodiments, the connecting section 5 can be fixed to the central axis of the supporting section 3 and the clamping section 4, so that the positioning bracket is in an H shape as a whole.

[0034] like Figure 2As shown, when the positioning bracket clamps the arch section 1, a gap is formed between the connecting section 5 and the wing plate of the arch section 1, which facilitates the welding operation between the connecting plate 2 and the web of the arch section 1 along the gap. In some embodiments, a hole can also be opened on the side of the connecting section 5, so that the workers can perform the welding operation between the connecting plate 2 and the web of the arch section 1 along the hole.

[0035] In addition, in addition to the first clamping opening 4-1, the clamping section 4 is also provided with a second avoidance opening 4-2. The second avoidance opening 4-2 and the first clamping opening 4-1 are located on the same side of the clamping section 4, and the size and opening direction of the second avoidance opening 4-2 can be consistent with the second avoidance opening 4-2.

[0036] Furthermore, in order to connect the positioning bracket with the connecting plate 2, two positioning rods 6 are fixed to one end of the support section 3 away from the connecting section 5. The diameter of the positioning rod 6 is preferably consistent with the aperture of the through hole 2-1, and the detachable connection on the positioning rod 6 has a positioning piece for locking the positioning rod 6 at the through hole 2-1.

[0037] In this embodiment, the outer periphery of the positioning rod 6 has an external thread, and the positioning member is a nut 7 that can be screwed onto the external thread of the positioning rod 6. During construction, the positioning rod 6 is inserted into the through hole 2-1, and the nut 7 is screwed and locked onto the positioning rod 6. The nut 7 is pressed against the connecting plate 2, and the positioning bracket can be locked onto the connecting plate 2.

[0038] In other embodiments, in order to achieve the connection between the positioning bracket and the connecting plate 2, a long hole is opened at one end of the positioning rod 6 away from the supporting section 3, and the length direction of the long hole is consistent with the length direction of the positioning rod 6; and the positioning piece is selected as a wedge block.

[0039] When installing the positioning bracket and the connecting plate 2, the positioning rod 6 is passed through the through hole 2-1 of the connecting plate 2, and the connecting plate 2 and the positioning bracket can be locked by inserting the small head section of the wedge block into the positioning hole, and by tightening the wedge block and making the surface of the wedge block contact the surface of the connecting plate 2.

[0040] Further, such as Figure 4 As shown, in some embodiments, considering that the curvature of the arch frame segments 1 at different positions may be different, in order to facilitate the positioning bracket to smoothly clamp the arch frame segments 1 with different curvatures at multiple points. The connecting segment 5 is displaceably arranged on the supporting segment 3, and an adjustment structure for adjusting the installation position of the connecting segment 5 is provided between the supporting segment 3 and the connecting segment 5. There is also a guide structure for guiding the connecting segment 5 between the connecting segment 5 and the supporting segment 3.

[0041] Specifically, the support section 3 is L-shaped, and the guide structure includes two guide rods 8 horizontally fixed to the upper end of the support section 3, and the length direction of the guide rods 8 is consistent with the clamping direction of the first clamping opening 4-1. The connecting section 5 is provided with a guide hole corresponding to the guide rod 8, and the guide hole is slidably adapted to the guide rod 8, so that the connecting section 5 can be slidably installed on the support section 3 through the guide rod 8. In other embodiments, the guide structure can also adopt a structure with a guide function such as a slide rail slider.

[0042] In addition, the adjustment structure includes an adjustment screw 9, the length direction of the adjustment screw 9 is consistent with the length direction of the guide rod 8, the adjustment screw 9 spirally penetrates the upper end of the support section 3, and one end of the adjustment screw 9 is rotatably connected to the connecting section 5. By rotating the adjustment screw 9, the connecting section 5 can be driven to slide back and forth along the length direction of the guide rod 8, so that the first clamping port 4-1 clamps the arch frame section 1.

[0043] In addition, a plurality of washers 10 may be sleeved on the rod of the adjusting screw 9 , and by adjusting the number of washers 10 , the limit adjustment position of the connecting plate 2 can be adjusted more accurately.

[0044] It should be understood that expressions such as "include" and "may include" used in this application indicate the existence of the disclosed functions, operations or constituent elements, and do not limit one or more additional functions, operations and constituent elements. In this application, terms such as "include" and / or "have" may be interpreted as indicating specific characteristics, numbers, operations, constituent elements, components or combinations thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components or combinations thereof.

[0045] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A welding positioning fixture for an arch connecting plate, characterized in that: It comprises a plurality of positioning brackets, which can be detachably connected to a connecting plate (2) of the arch frame with an arch frame section (1) of the arch frame as the center, and each of the plurality of positioning brackets has a plurality of first clamping openings (4-1) for clamping the wing plate of the arch frame section (1).

2. The welding positioning fixture for the arch connecting plate according to claim 1, characterized in that: The positioning bracket comprises: a supporting section (3) for detachably connecting to the arch section (1), a clamping section (4) with the first clamping opening (4-1), and a connecting section (5) for connecting the supporting section (3) and the clamping section (4).

3. The welding positioning fixture for the arch connecting plate according to claim 2, characterized in that: The support section (3) has a second clamping opening (3-1) for clamping the wing plate of the arch section (1).

4. The welding positioning fixture for the arch connecting plate according to claim 2, characterized in that: The support section (3) has a first avoidance opening (3-2), and when the positioning bracket clamps the arch section (1), the first avoidance opening (3-2) faces the junction between the web of the arch section (1) and the connecting plate (2).

5. The welding positioning fixture for the arch connecting plate according to claim 2, characterized in that: The connecting section (5) is located on the same side of the supporting section (3) and the clamping section (4); when the positioning bracket clamps the arch section (1), a gap is formed between the connecting section (5) and the wing plate of the arch section (1).

6. The welding positioning fixture for the arch connecting plate according to claim 2, characterized in that: The clamping section (4) is provided with a second avoidance opening (4-2), and the second avoidance opening (4-2) and the first clamping opening (4-1) are located on the same side of the clamping section (4).

7. The welding positioning fixture for the arch connecting plate according to claim 2, characterized in that: The connecting section (5) is arranged on the supporting section (3) in a displaceable and adjustably manner, and an adjusting structure for adjusting the installation position of the connecting section (5) is provided between the supporting section (3) and the connecting section (5).

8. The welding positioning fixture for the arch connecting plate according to claim 7, characterized in that: A guiding structure for guiding the connecting section (5) is provided between the connecting section (5) and the supporting section (3).

9. The welding positioning fixture for the arch connecting plate according to any one of claims 2 to 8, characterized in that: A positioning rod (6) for penetrating a through hole (2-1) of the connecting plate (2) is fixed to one end of the supporting section (3) away from the connecting section (5); a positioning piece for locking the positioning rod (6) at the through hole (2-1) is detachably connected to the positioning rod (6).

10. The welding positioning fixture for the arch connecting plate according to claim 9, characterized in that: The outer periphery of the positioning rod (6) has an external thread, and the positioning member is a nut (7) that can be screwed onto the external thread of the positioning rod (6).

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