Assembling and welding positioning device of bridge widening part positioning connection structure

Abstract

The invention discloses an assembling and welding positioning device of a bridge widening part positioning connection structure, which belongs to the technical field of welding and comprises a positioning support, a plurality of positioning seats, positioning blocks a in one-to-one correspondence with the positioning seats and code pressing seats in one-to-one correspondence with the positioning seats. The widening part is placed on the positioning bracket; the plurality of positioning seats are mounted on the positioning bracket and are arranged at the positioning notches of the widened part in a one-to-one correspondence manner; the positioning seat is used for positioning the mounting support of the widening part; a positioning block a is arranged on each positioning seat, and the positioning blocks a and the positioning blocks b are matched in a concave-convex manner; the positioning block a is used for positioning the positioning block b; the code pressing seat and the positioning seat are oppositely arranged at the two transverse ends of the widening part; and the widening part is tightly pressed on the positioning bracket through the code pressing seat. Welding deformation of the widening part in the process of assembling and welding the positioning connection structure to the widening part is reduced, the positioning connection structure of the widening part is unified through assembling and welding positioning of the positioning block and the mounting support, and the interchangeability requirement of the widening part is met.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a welding positioning device for a positioning connection structure of a bridge widening portion. Background Art

[0002] Bridge widening refers to the engineering activity of increasing the width of the bridge deck to improve the traffic capacity or meet new usage requirements based on the original bridge. This usually involves building a new structure on one or both sides of the existing bridge, or adding a new bridge deck above or below the existing bridge.

[0003] In such projects, the widening part of the bridge is composed of multiple widening parts. Several mounting supports and positioning blocks need to be welded on the widening parts as positioning and connecting structures to achieve the positioning and connection between the widening parts and the bridge. However, the current mounting supports and positioning blocks have the following problems in the positioning and welding process:

[0004] (1) Since each widened portion is relatively thin and each widened portion can be up to 4,300 mm in length, the deformation of the widened portion is relatively large, which can easily lead to deformation of the widened portion during the process of welding the positioning connection structure to the widened portion, making it impossible for the widened portion after welding to meet the technical requirements of flatness.

[0005] (2) At present, the installation and welding positioning of the mounting supports and the positioning blocks rely on manual on-site repair, which leads to human errors in the installation and welding positioning process, making it difficult to unify the positions of the mounting supports and the positioning blocks (i.e., the positioning connection structures) on each widened portion; when a widened portion is damaged and needs to be replaced, the positions of the mounting supports and the positioning blocks are not unified, so that the new widened portion does not match the structure of the bridge, making it difficult or impossible to interchange the widened portions.

[0006] Therefore, a device for welding and positioning the positioning connection structure of the widened part of the bridge is needed to solve the above-mentioned problem. Summary of the invention

[0007] In view of this, the present invention provides a welding positioning device for the positioning and connecting structure of the widened part of the bridge, which reduces the welding deformation of the widened part during the process of welding the positioning and connecting structure to the widened part, and unifies the positioning and connecting structure of the widened part through the welding positioning of the positioning block and the mounting support, thereby meeting the interchangeability requirements of the widened part.

[0008] The present invention is achieved through the following technical solutions:

[0009] A welding and positioning device for a bridge widening portion positioning and connecting structure, the positioning and connecting structure comprising: a plurality of mounting supports and a plurality of positioning blocks b;

[0010] The welding positioning device comprises: a positioning bracket, a plurality of positioning seats, a positioning block a corresponding to the positioning seats one by one, and a code pressing seat corresponding to the positioning seats one by one;

[0011] The widened portion is placed on a positioning bracket;

[0012] A plurality of the positioning seats are installed on the positioning bracket and are arranged one by one at the positioning notches of the widened portion; the positioning seats position the mounting support of the widened portion;

[0013] Each of the positioning seats is provided with a positioning block a, and the positioning block a and the positioning block b are matched with each other in a concave-convex manner; the positioning block a is used to position the positioning block b;

[0014] The code pressing seat and the positioning seat are arranged oppositely at the two transverse ends of the widened portion; the widened portion is pressed tightly onto the positioning bracket through the code pressing seat.

[0015] Furthermore, the positioning bracket includes: a frame, a plurality of mounting plates a and a plurality of mounting plates b;

[0016] The frame is open at both ends;

[0017] A plurality of the mounting plates a are mounted in the frame, and the upper end surface of each mounting plate a is flush with the upper end surface of the frame; the plurality of mounting plates a are arranged at intervals along the longitudinal direction of the frame; the mounting plates a in the positioning bracket correspond to the positioning notches on the widened portion one by one;

[0018] A plurality of the mounting plates b are mounted on the side walls of the frame extending in the longitudinal direction; the positions of the mounting plates b correspond to the mounting plates a one by one; the upper end surfaces of all the mounting plates b are flush;

[0019] When in use, the code pressing seats are installed on the mounting plate a one-to-one;

[0020] When in use, the positioning seats are installed on the mounting plate b in a one-to-one correspondence.

[0021] Furthermore, each of the positioning seats comprises: a support a, two or more fixing pins a, a positioning pin and a positioning plate;

[0022] One end of the positioning plate is mounted on the support a through two or more fixing pins a; the other end of the positioning plate is processed with a positioning pin hole;

[0023] The other end of the positioning plate extends into the positioning notch of the widened portion; the positioning pin holes on all the positioning plates are coaxial; every two mounting supports are installed in the positioning pin holes of the corresponding positioning plates through positioning pins and are located on both sides of the positioning plates.

[0024] Furthermore, the positioning block is fixedly connected to the positioning plate; the end surface of the positioning block a facing the widened portion is concave, and the concave surface is matched with the convex surface of the widened portion positioning block b.

[0025] Furthermore, each of the code pressing seats comprises: a pressing plate, a support b and two or more fixing pins b;

[0026] The pressure plate is installed on the support b through more than two fixing pins b; the pressure plate is an L-shaped structure, the horizontal part of the L-shaped structure is fixedly connected to the support b, the vertical part faces downward, and the end of the vertical part is pressed on the lower end surface of the widened part.

[0027] Beneficial effects:

[0028] (1) A welding positioning device for positioning and connecting a widened portion of a bridge of the present invention comprises a positioning bracket, a plurality of positioning seats, a positioning block a corresponding to the positioning seats one by one, and a pressing code seat corresponding to the positioning seat one by one. The pressing code seat can fix the widened portion to prevent the widened portion from shaking during the welding process, thereby avoiding deformation of the widened portion. The positioning seat positions the mounting support, and the positioning block a positions the positioning block b. The welding positioning device can avoid the position inconsistency of the mounting support and the positioning block b caused by human errors, thereby ensuring the uniformity of the widened portion structure, so that the widened portion after welding can meet the interchangeability requirements, and is convenient for repair and replacement operations during use.

[0029] (2) The welding positioning device of the positioning connection structure of the widened part of the bridge of the present invention has the other end of the positioning plate extending into the positioning notch of the widened part, and every two mounting brackets are mounted on the corresponding positioning plates through positioning pins, which can improve the positioning accuracy of the mounting brackets and further meet the requirements of uniformity and interchangeability.

[0030] (3) The welding positioning device of the positioning and connecting structure of the widened part of the bridge of the present invention has an L-shaped pressure plate. The horizontal part of the L-shaped structure is fixedly connected to the support b, and the vertical part faces downward. The end of the vertical part is pressed on the lower end surface of the widened part, which can prevent the widened part from shaking while ensuring that the horizontal part can be tightly attached to the horizontal reference plane and the height of the end surface of the widened part is consistent, so that the widened part can meet the flatness requirements after welding.

[0031] (4) The welding positioning device of the positioning and connecting structure of the widened part of a bridge of the present invention has a spacer block between the positioning bracket and the widened part, and the height of the widened part can be adjusted as needed, so that the welding positioning device can be suitable for the welding and positioning of the positioning and connecting structures on different widened parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a widened portion provided with a positioning connection structure;

[0033] Figure 2 It is a structural schematic diagram of the present invention;

[0034] Figure 3 A top view of the widened portion equipped with the welding and positioning device of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the positioning block of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the positioning seat of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the code pressing seat of the present invention;

[0038] Among them, 1-positioning block a, 2-positioning seat, 201-support a, 202-positioning plate, 203-positioning pin hole, 3-pressure code seat, 301-pressure plate, 302-support b, 4-widening part, 401-rectangular flat plate, 402-side wall A, 403-side wall B, 404-mounting support, 405-positioning block b, 406-mounting hole a, 5-bracket, 501-frame, 502-mounting plate a, 503-mounting plate b, 6-pad. DETAILED DESCRIPTION

[0039] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0040] This embodiment provides a welding and positioning device for the positioning and connecting structure of the widened portion of a bridge, which is used for welding and positioning when installing a support 404 and a positioning block b405 on the widened portion 4.

[0041] like Figure 1 As shown, the cross section of the widened portion 4 is U-shaped, including a rectangular flat plate 401 and side walls A402 and B403 arranged on two opposite sides of the rectangular flat plate 401 and extending along the length direction of the rectangular flat plate 401. The side walls A402 and B403 are both perpendicular to the rectangular flat plate 401. The side wall A402 is processed with a plurality of L-shaped positioning notches extending to the rectangular flat plate 401, and the plurality of positioning notches are evenly spaced along the length direction of the rectangular flat plate 401.

[0042] A mounting support 404 needs to be welded on both sides of each positioning notch, and each mounting support 404 is provided with a mounting hole a406. A positioning block b405 needs to be provided above the two mounting supports 404 on both sides of each positioning notch. The outer side surface of each positioning block b405 is a convex surface, which is used to form a concave-convex fit with the concave surface of the positioning block c on the bridge.

[0043] The positioning device comprises: a positioning bracket 5, a plurality of positioning seats 2, positioning blocks a1 corresponding to the positioning seats 2 one by one, and code pressing seats 3 corresponding to the positioning seats 2 one by one.

[0044] like Figure 2 and Figure 3 As shown, the positioning bracket 5 includes: a frame 501, a plurality of mounting plates a502 and a plurality of mounting plates b503.

[0045] The frame 501 is a rectangular parallelepiped structure with openings at the top and bottom. The length direction of the frame 501 is defined as the longitudinal direction, and the width direction is defined as the transverse direction.

[0046] Several mounting plates a502 are installed in the frame 501, and the upper end surface of each mounting plate a502 is flush with the upper end surface of the frame 501. The upper end surface of the frame 501 is defined as a horizontal reference plane. Several mounting plates a502 are arranged at intervals along the longitudinal direction of the frame 501. Several mounting plates b503 are installed on the side walls of the frame 501 extending along the longitudinal direction (i.e., on the side walls on the lateral side). The positions of the mounting plates b503 and the mounting plates a502 correspond one by one. The upper end surfaces of all the mounting plates b503 are flush. In this embodiment, the frame 501, the mounting plates a502, and the mounting plates b503 are constructed by angle steels.

[0047] like Figure 1 As shown, the upper end surface of the widened portion 4 (i.e., the upper end surface of the widened portion 4 when in use) is placed flatly downward on a horizontal reference plane, and the mounting plate a502 in the positioning bracket 5 corresponds one-to-one to the positioning notch position on the widened portion 4.

[0048] Several positioning seats 2 are mounted on the mounting plate b503 in a one-to-one correspondence. Figure 5 As shown, the positioning seat 2 includes: a support a201, more than two fixing pins a, a positioning pin and a positioning plate 202.

[0049] When in use, the support a201 is mounted on the mounting plate b503; one end of the positioning plate 202 is mounted on the support a201 by two or more fixing pins a. The other end of the positioning plate 202 is processed with a positioning pin hole 203. The end of the positioning plate 202 processed with the positioning pin hole 203 extends into the positioning notch of the widened portion 4. The positioning pin holes 203 on all positioning plates 202 are coaxial, and the lower end surface of the positioning plate 202 is in contact with the reference surface. A mounting support 404 is installed on both sides of each positioning plate 202. The positioning pins pass through the mounting hole a406 of a mounting support 404, the positioning pin hole 203 of the positioning plate 202 and the mounting hole a406 of another mounting support 404 in sequence to achieve fixation. The positioning seat 2 is used for positioning the mounting support 404.

[0050] Each positioning plate 202 is provided with a positioning block a1, which is located on the upper surface of the positioning plate 202 at one end of which the positioning pin hole 203 is processed. Figure 1 and Figure 4 As shown, the inner side surface of the positioning block a1 (i.e., the end surface facing the widened portion) is a concave surface. The concave surface of the positioning block a1 forms a concave-convex fit with the convex surface of the positioning block b405 to be installed, and the positioning block b405 to be installed is laterally positioned by the positioning block a1. In this embodiment, the positioning block a1 is fixedly connected to the positioning plate 202 by spot welding.

[0051] The code pressing seat 3 and the positioning seat 2 are arranged opposite to each other at the lateral ends of the widened portion 4 and are mounted on the mounting plate a502 in a one-to-one correspondence. The code pressing seat 3 is used to press the widened portion 4 onto the horizontal reference plane. Figure 2 and Figure 6 As shown, the code pressing seat 3 includes: a pressing plate 301, a support b302 and two or more fixing pins b. When in use, the support b302 is installed on the mounting plate a502. The pressing plate 301 is installed on the support b302 by two or more fixing pins b. The pressing plate 301 is an inverted L-shaped structure. The horizontal part of the L-shaped structure is fixedly connected to the support b302, the vertical part faces downward, and the end of the vertical part is pressed on the lower end surface of the rectangular plate of the widened part 4, so that the upper end surface of the rectangular plate is in contact with the horizontal reference plane, and the widened part 4 is prevented from shaking.

[0052] As an example, a cushion block 6 is provided between the widened portion 4 and the mounting plate a502, so as to adjust the height of the widened portion 4. At this time, the surface where the upper end surface of the cushion block 6 is located is a horizontal reference surface.

[0053] Directions:

[0054] The welding positioning device is used by the following steps:

[0055] Step 1: The widened portion 4 is placed on the mounting plate a502 of the bracket with the upper end thereof facing downward and the length direction thereof in the longitudinal direction;

[0056] Step 2: The code pressing seat 3 is installed on the mounting plate a502; the vertical portion of the pressing plate 301 presses the widened portion 4 onto the mounting plate a502;

[0057] Step 3: The positioning seat 2 is installed on the mounting plate b503; the positioning plate 202 of the positioning seat 2 is inserted into the corresponding positioning notch on the widened portion 4;

[0058] Step 4: Install a mounting bracket 404 on both sides of each positioning seat 2;

[0059] Step 5, welding the mounting bracket 404 to the widened portion 4;

[0060] Step six: Laterally position the positioning block b405 using the positioning block a1, and then weld the positioning block b405 to the corresponding mounting support 404.

[0061] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding and positioning device for a bridge widening portion positioning and connecting structure, the positioning and connecting structure comprising: A plurality of mounting supports (404) and a plurality of positioning blocks b (405); The invention is characterized in that it comprises: a positioning bracket (5), a plurality of positioning seats (2), a positioning block a (1) corresponding one-to-one to the positioning seats (2), and a code pressing seat (3) corresponding one-to-one to the positioning seats (2); The widened portion (4) is placed on a positioning bracket (5); A plurality of the positioning seats (2) are mounted on the positioning bracket (5) and are arranged one by one at the positioning notches of the widened portion (4); the positioning seats (2) position the mounting support (404) of the widened portion (4); Each of the positioning seats (2) is provided with a positioning block a (1), and the positioning block a (1) is matched with the positioning block b (405) in a concave-convex manner; the positioning block a (1) is used to position the positioning block b (405); The code pressing seat (3) and the positioning seat (2) are arranged opposite to each other at the two transverse ends of the widened portion (4); the widened portion (4) is pressed tightly onto the positioning bracket (5) through the code pressing seat (3).

2. A welding and positioning device for positioning and connecting structures of a bridge widening portion as claimed in claim 1, characterized in that: The positioning bracket (5) comprises: a frame (501), a plurality of mounting plates a (502) and a plurality of mounting plates b (503); The frame (501) is open at both ends; A plurality of the mounting plates a (502) are mounted in the frame (501), and the upper end surface of each mounting plate a (502) is flush with the upper end surface of the frame (501); the plurality of mounting plates a (502) are arranged at intervals along the longitudinal direction of the frame (501); the mounting plates a (502) in the positioning bracket (5) correspond to the positioning notches on the widened portion (4) in a one-to-one manner; A plurality of the mounting plates b (503) are mounted on the side walls of the frame (501) extending in the longitudinal direction; the positions of the mounting plates b (503) correspond to the positions of the mounting plates a (502) one by one; the upper end surfaces of all the mounting plates b (503) are flush; When in use, the code pressing seats (3) are mounted on the mounting plate a (502) in a one-to-one correspondence; When in use, the positioning seats (2) are mounted on the mounting plate b (503) in a one-to-one correspondence.

3. A welding and positioning device for positioning and connecting structures of a bridge widening portion as claimed in claim 1, characterized in that: Each positioning seat (2) comprises: a support a (201), two or more fixing pins a, a positioning pin and a positioning plate (202); One end of the positioning plate (202) is mounted on the support a (201) via two or more fixing pins a; the other end of the positioning plate (202) is processed with a positioning pin hole (203); The other end of the positioning plate (202) extends into the positioning notch of the widened portion (4); the positioning pin holes (203) on all the positioning plates (202) are coaxial; every two mounting supports (404) are mounted in the positioning pin holes (203) of the corresponding positioning plates (202) through positioning pins, and are located on both sides of the positioning plates (202).

4. A welding and positioning device for positioning and connecting structures of a bridge widening portion as claimed in claim 3, characterized in that: The positioning block (1) is fixedly connected to the positioning plate (202); the end surface of the positioning block a (1) facing the widened portion is concave, and the concave surface is matched with the convex surface of the positioning block b (405) of the widened portion (4).

5. A welding and positioning device for positioning and connecting structures of a bridge widening portion as claimed in claim 1, characterized in that: Each of the code pressing seats (3) comprises: a pressing plate (301), a support b (302) and two or more fixing pins b; The pressing plate (301) is installed on the support b (302) through more than two fixing pins b; the pressing plate (301) is an L-shaped structure, the horizontal part of the L-shaped structure is fixedly connected to the support b (302), the vertical part faces downward, and the end of the vertical part is pressed on the lower end surface of the widened part (4).

6. A welding and positioning device for positioning and connecting structures of a bridge widening portion as claimed in any one of claims 1 to 5, characterized in that: A cushion block (6) is provided between the positioning bracket (5) and the widened portion (4).

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