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

Abstract

The utility model 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 portion in the process of welding the positioning connection structure to the widening portion is reduced, the positioning connection structure of the widening portion is unified through welding positioning of the positioning block and the mounting support, and the requirement for interchangeability of the widening portion is met.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, specifically relating to a welding positioning device for a positioning and connection structure of a bridge widening section. Background Technology

[0002] Bridge widening refers to engineering activities that improve the traffic capacity or meet new usage requirements of an existing bridge by increasing the width of the bridge deck. This typically involves constructing new structures on one or both sides of an existing bridge, or adding a new bridge deck layer above or below the existing bridge.

[0003] In such projects, the widening section of a bridge consists of multiple widening segments. Several mounting supports and positioning blocks need to be welded onto these widening segments as positioning and connection structures to achieve the positioning and connection between the widening segment and the bridge. However, the following problems currently exist in the positioning and welding process of these mounting supports and positioning blocks:

[0004] (1) Since each widened part is thin and the length of each widened part can reach 4300 mm, the deformation of the widened part is large. During the process of welding the positioning connection structure to the widened part, the widened part is prone to deformation, so that the widened part after welding cannot meet the technical requirements of flatness.

[0005] (2) At present, the installation and positioning of the mounting supports and positioning blocks rely on manual on-site repair, which leads to human error in the installation and positioning process, making it difficult to unify the position of the mounting supports and positioning blocks (i.e., positioning connection structures) on each widening section; when a widening section is damaged and needs to be replaced, the position of the mounting supports and positioning blocks is not unified, making the new widening section incompatible with the structure of the bridge, resulting in the widening section being inconvenient to interchange or unable to be interchanged.

[0006] Therefore, a device for welding and positioning the positioning connection structure of the bridge widening section is needed to solve the above problems. Utility Model Content

[0007] In view of this, the present invention provides a welding and positioning device for the positioning and connection structure of the bridge widening section, which reduces the welding deformation of the widening section during the welding and connection of the positioning and connection structure to the widening section. By welding and positioning the positioning block and the mounting support, the positioning and connection structure of the widening section is unified, thereby meeting the interchangeability requirements of the widening section.

[0008] This utility model is achieved through the following technical solution:

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

[0010] The welding and positioning device includes: a positioning bracket, several positioning seats, positioning blocks a corresponding to each positioning seat, and pressure plates corresponding to each positioning seat.

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

[0012] Several of the aforementioned positioning seats are mounted on the positioning bracket and are respectively positioned at the positioning notches of the widened portion; the positioning seats position the mounting supports of the widened portion;

[0013] Each of the positioning seats is provided with a positioning block a, which is in concave-convex fit with positioning block b; the positioning block a is used to position the positioning block b.

[0014] The pressure base and the positioning base are arranged opposite each other on the two ends of the widened part in the lateral direction; the widened part is pressed against the positioning bracket by the pressure base.

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

[0016] The frame is open at both ends;

[0017] Several mounting plates a are installed inside the frame, and the upper end face of each mounting plate a is flush with the upper end face of the frame; the several mounting plates a are arranged at intervals along the longitudinal direction of the frame; the mounting plates a in the positioning bracket correspond one-to-one with the positioning notches on the widened part.

[0018] Several mounting plates b are installed on the longitudinally extending sidewalls of the frame; the positions of the mounting plates b correspond one-to-one with those of the mounting plates a; the upper surfaces of all the mounting plates b are flush.

[0019] In use, the pressure plate holders are installed one-to-one on the mounting plate a;

[0020] In use, the positioning seats are installed one-to-one on the mounting plate b.

[0021] Furthermore, each of the positioning seats includes: 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 by two or more fixing pins a; the other end of the positioning plate is machined with positioning pin holes;

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

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

[0025] Furthermore, each of the pressure plates includes: a pressure plate, a support b, and two or more fixing pins b;

[0026] The pressure plate is installed on the support b by two or more fixing pins b; the pressure plate has an L-shaped structure, the horizontal part of the L-shaped structure is fixed to the support b, the vertical part faces downward, and the end of the vertical part presses against the lower end face of the widened part.

[0027] Beneficial effects:

[0028] (1) The present invention provides a positioning and welding positioning device for the positioning and connection of a bridge widening section, comprising a positioning bracket, several positioning seats, positioning blocks a corresponding to each positioning seat, and pressure plates corresponding to each positioning seat. The pressure plates can fix the widening section to prevent it from shaking during the welding process, thereby avoiding deformation of the widening section. The positioning seats position the mounting supports, and the positioning blocks a position the positioning blocks b. The welding and welding positioning device can avoid human error causing the mounting supports and positioning blocks b to be inconsistent in position, thereby ensuring the uniformity of the widening section structure and making the widening section interchangeable after welding, which is convenient for repair and replacement operations during use.

[0029] (2) The positioning and welding positioning device of the positioning connection structure of the bridge widening section of this utility model has the other end of the positioning plate extending into the positioning notch of the widening section. Every two mounting supports are installed on the corresponding positioning plate by positioning pins, which can improve the positioning accuracy of the mounting supports and further meet the requirements of uniformity and interchangeability.

[0030] (3) The positioning and welding positioning device of the positioning and connection structure of the bridge widening section of this utility model has an L-shaped pressure plate. The horizontal part of the L-shaped structure is fixed to the support b, and the vertical part faces downward. The end of the vertical part is pressed on the lower end face of the widening section, which can prevent the widening section from shaking while ensuring that the horizontal part can be close to the horizontal reference surface, ensuring that the height of the end face of the widening section is consistent, so that the widening section after welding can meet the flatness requirements.

[0031] (4) The present invention provides a positioning and welding positioning device for a positioning and connection structure of a bridge widening section. A pad is provided between the positioning bracket and the widening section. The height of the widening section can be adjusted as needed, so that the positioning and welding positioning device can be applied to the positioning and welding positioning of the positioning and connection structure on different widening sections. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the widened section with a positioning connection structure.

[0033] Figure 2 This is a schematic diagram of the structure of this utility model;

[0034] Figure 3 A top view of the widened portion in which the welding and positioning device of this utility model is installed;

[0035] Figure 4 This is a schematic diagram of the positioning block a of this utility model;

[0036] Figure 5 This is a schematic diagram of the positioning seat of this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the code holder of this utility model;

[0038] Wherein, 1-positioning block a, 2-positioning seat, 201-support a, 202-positioning plate, 203-positioning pin hole, 3-pressure base, 301-pressure plate, 302-support b, 4-widening part, 401-rectangular 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 Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] This embodiment provides a welding and positioning device for the positioning and connection structure of a bridge widening section, used for welding and positioning when installing the support 404 and the positioning block b405 on the widening section 4.

[0041] like Figure 1 As shown, the widened portion 4 has a U-shaped cross-section and includes a rectangular plate 401 and sidewalls A402 and B403 extending along the length of the rectangular plate 401 on two opposite sides in the transverse direction. Both sidewalls A402 and B403 are perpendicular to the rectangular plate 401. A plurality of L-shaped positioning notches extending into the rectangular plate 401 are machined on sidewall A402, and these notches are evenly spaced along the length of the rectangular plate 401.

[0042] Each positioning notch requires a mounting bracket 404 to be welded to both sides, and each mounting bracket 404 has a mounting hole a406. A positioning block b405 needs to be installed above the two mounting brackets 404 on both sides of each positioning notch. The outer surface of each positioning block b405 is a raised surface, which is used to form a concave-convex fit with the concave surface on the positioning block c on the bridge.

[0043] The positioning device includes: a positioning bracket 5, several positioning seats 2, positioning blocks a1 corresponding to each positioning seat 2, and pressure seats 3 corresponding to each positioning seat 2.

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

[0045] The frame 501 is a cuboid 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 as the transverse direction.

[0046] Several mounting plates a502 are installed within the frame 501, with the upper surface of each mounting plate a502 flush with the upper surface of the frame 501. The upper surface of the frame 501 is defined as a horizontal reference plane. The mounting plates a502 are arranged at intervals along the longitudinal direction of the frame 501. Several mounting plates b503 are installed on the longitudinally extending sidewall of the frame 501 (i.e., on the transverse sidewall). The positions of the mounting plates b503 correspond one-to-one with those of the mounting plates a502. The upper surfaces of all the mounting plates b503 are flush. In this embodiment, the frame 501, mounting plates a502, and mounting plates b503 are constructed using angle steel.

[0047] like Figure 1 As shown, the upper end face of the widened part 4 (i.e. the upper end face of the widened part 4 when in use) is placed flat on the horizontal reference surface with the upper end face down, and the mounting plate a502 in the positioning bracket 5 corresponds one-to-one with the positioning notch on the widened part 4.

[0048] Several of the aforementioned positioning seats 2 are installed one-to-one on the mounting plate b503. For example... Figure 5 As shown, the positioning seat 2 includes: a support a201, two or more fixing pins a, a positioning pin, and a positioning plate 202.

[0049] 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 has a positioning pin hole 203. The end of the positioning plate 202 with the positioning pin hole 203 extends into the positioning notch of the widened portion 4. All positioning pin holes 203 on the positioning plates 202 are coaxial, and the lower end face of the positioning plate 202 is in contact with the reference surface. Each side of each positioning plate 202 is equipped with a mounting support 404. Positioning pins pass sequentially through the mounting hole a406 of one mounting support 404, the positioning pin hole 203 of the positioning plate 202, and the mounting hole a406 of the other mounting support 404 to achieve fixation. The positioning seat 2 is used for positioning the mounting support 404.

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

[0051] The clamping base 3 and the positioning base 2 are arranged opposite to each other at the two transverse ends of the widened portion 4, and are installed one-to-one on the mounting plate a502. The clamping base 3 is used to press the widened portion 4 firmly onto the horizontal reference surface. Figure 2 and Figure 6 As shown, the pressure plate holder 3 includes a pressure plate 301, a support b302, and two or more fixing pins b. In use, the support b302 is mounted on the mounting plate a502. The pressure plate 301 is mounted on the support b302 by two or more fixing pins b. The pressure plate 301 has an inverted L-shaped structure. The horizontal part of this L-shaped structure is fixed to the support b302, and the vertical part faces downward. The end of the vertical part presses against the lower end face of the rectangular plate of the widened part 4, so that the upper end face of the rectangular plate is in contact with the horizontal reference plane and prevents the widened part 4 from shaking.

[0052] As an example, a shim 6 is provided between the widened portion 4 and the mounting plate a502 to adjust the height of the widened portion 4. In this case, the upper surface of the shim 6 is a horizontal reference plane.

[0053] How to use:

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

[0055] Step 1: Place the upper end face of the widened part 4 on the mounting plate a502 of the bracket with its length direction along the longitudinal direction;

[0056] Step 2: The pressure plate 3 is installed on the mounting plate a502; the vertical part of the pressure plate 301 presses the widened part 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 part 4;

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

[0059] Step 5: Weld the mounting bracket 404 onto the widened portion 4;

[0060] Step 6: Positioning block b405 laterally using positioning block a1, and then welding positioning block b405 onto the corresponding mounting bracket 404.

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

Claims

1. A welding and positioning device for a positioning and connection structure of a bridge widening section, the positioning and connection structure comprising: Several mounting supports (404) and several positioning blocks b (405); Its features include: a positioning bracket (5), a plurality of positioning seats (2), a positioning block a (1) corresponding to each positioning seat (2) and a pressure seat (3) corresponding to each positioning seat (2); The widened portion (4) is placed on the positioning bracket (5); Several of the positioning seats (2) are installed on the positioning bracket (5) and are respectively set at the positioning notch of the widened part (4); the positioning seats (2) position the mounting support (404) of the widened part (4); Each of the positioning seats (2) is provided with a positioning block a (1), and the positioning block a (1) and the positioning block b (405) are in concave-convex cooperation; the positioning block a (1) is used to position the positioning block b (405); The pressure plate (3) and the positioning plate (2) are arranged opposite to each other on the two ends of the widened part (4) in the lateral direction; the widened part (4) is pressed against the positioning bracket (5) by the pressure plate (3).

2. The welding and positioning device for the positioning and connection structure of a bridge widening section as described in claim 1, characterized in that, The positioning bracket (5) includes: 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; Several mounting plates a (502) are installed inside the frame (501), and the upper end face of each mounting plate a (502) is flush with the upper end face of the frame (501); several 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 one-to-one with the positioning notches on the widened part (4); Several mounting plates b (503) are mounted on the longitudinally extending sidewalls of the frame (501); the positions of the mounting plates b (503) correspond one-to-one with those of the mounting plates a (502); the upper surfaces of all the mounting plates b (503) are flush. In use, the pressure plate holder (3) is installed on the mounting plate a (502) one by one; In use, the positioning seat (2) is installed on the mounting plate b (503) one by one.

3. The welding and positioning device for the positioning and connection structure of a bridge widening section as described in claim 1, characterized in that, Each of the positioning seats (2) includes: 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) by two or more fixing pins a; the other end of the positioning plate (202) is machined with positioning pin holes (203); The other end of the positioning plate (202) extends into the positioning notch of the widened part (4); the positioning pin holes (203) on all the positioning plates (202) are coaxial; every two mounting supports (404) are installed in the positioning pin holes (203) of their corresponding positioning plates (202) by positioning pins and are located on both sides of the positioning plates (202).

4. The welding and positioning device for the positioning and connection structure of a bridge widening section as described in claim 3, characterized in that, The positioning block a (1) is fixed to the positioning plate (202); the end face of the positioning block a (1) facing the widened part is concave, and the concave surface is in concave-convex fit with the protruding surface of the positioning block b (405) of the widened part (4).

5. The welding and positioning device for the positioning and connection structure of a bridge widening section as described in claim 1, characterized in that, Each of the pressure plates (3) includes: a pressure plate (301), a support b (302), and two or more fixing pins b; The pressure plate (301) is mounted on the support b (302) by two or more fixing pins b; the pressure 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 presses against the lower end face of the widened part (4).

6. The welding and positioning device for the positioning and connection structure of a bridge widening section as described in any one of claims 1-5, characterized in that, A pad (6) is provided between the positioning bracket (5) and the widened part (4).

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