Welding positioning tool for protective fence assembly

Abstract

According to the welding positioning tool for the protective fence assembly, a protective fence bottom plate in the protective fence assembly is centrally positioned on a bottom plate, and guide grooves which are parallel to the length direction of the bottom plate and are the same as longitudinal grid bars in the protective fence assembly in number are formed in the middle of the surface of the bottom plate; two sets of side pushing positioning devices which are installed on the bottom plate in a telescopic and controllable mode and connected with the guide grooves in a matched mode are located on the outer side of the end of the bottom plate of the protective fence, the bottom plate is provided with a positioning and supporting assembly used for positioning and supporting longitudinal grid bars and transverse grid bars in the protective fence assembly, and the longitudinal grid bars are positioned through the side pushing positioning devices at the ends of the longitudinal grid bars. Two groups of downward pressing type positioning devices fixed on the bottom plate are arranged outside the long edge side of the protective fence bottom plate, and the protective fence bottom plate and a plurality of transverse grid bars for welding the two longitudinal grid bars are pressed and fixed through the downward pressing type positioning devices. The welding positioning difficulty of the protective fence assembly is solved, the welding quality and efficiency are improved, the welding positioning difficulty is reduced, operation is convenient and fast, and batch production is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding positioning tooling, and in particular relates to a welding positioning tooling for a protective grille assembly. Background Art

[0002] At present, the taillights of trucks are installed at the rear end of the vehicle through a bracket, and the taillight protection grille arranged on the bracket is used to provide necessary protection for the taillights to reduce damage to the taillights; Figure 4 The protective grille assembly shown includes a protective grille bottom plate 1, three U-shaped longitudinal grille bars 2 and transverse grille bars 3 welded together. Since the longitudinal grille bars 2 and transverse grille bars 3 are numerous and their positions with the protective grille bottom plate 1 are difficult to control, if manual measurement and welding are adopted, the welding efficiency and accuracy are low, the labor intensity is high, the welding consistency is poor, and the yield is low. Therefore, in order to improve the welding efficiency, ensure the welding quality, and ensure the welding consistency, it is necessary to design a spot welding auxiliary tool to solve the above technical problems. Therefore, it is necessary to make improvements. Utility Model Content

[0003] The technical problem solved by the utility model is: to provide a welding positioning tool for a protective grille assembly. On the premise that the protective grille bottom plate is reliably positioned on the bottom plate, the longitudinal bars and the transverse bars are reliably positioned by means of a side-push positioning device and a downward-pressing positioning device arranged on the bottom plate, so as to provide positioning support and adjustment for the reliable welding of the longitudinal bars and the transverse bars with the protective grille bottom plate, thereby solving the difficulty of welding positioning of the protective grille assembly, improving welding quality and efficiency, reducing the difficulty of welding positioning, having a simple structure, a novel design, convenient and quick operation, and facilitating mass production.

[0004] The technical solution adopted by the utility model: a welding positioning tool for a protective grid assembly, comprising a base plate, a protective grid base plate in the protective grid assembly being centrally positioned on the base plate, a guide groove parallel to its length direction and having the same number of longitudinal bars in the protective grid assembly being formed in the middle of the base plate surface, and two groups of side-push positioning devices telescopically and controllably mounted on the base plate and adaptably connected to the guide grooves are located on the outer side of the end of the protective grid base plate, a positioning support component for positioning and supporting the longitudinal bars and transverse bars in the protective grid assembly is provided on the base plate, a plurality of the longitudinal bars are positioned by the side-push positioning devices at their ends, two groups of downward-pressing positioning devices fixed to the base plate are provided on the outer side of the long sides of the protective grid base plate, and a plurality of transverse bars used for welding the two longitudinal bars to the protective grid base plate and to be pressed and fixed by the downward-pressing positioning devices.

[0005] Among them, the side-push positioning device includes a vertically arranged side-push connecting plate, a side-push fixing block and a side limit block, the side-push fixing block is centrally fixed on the outer side wall of the side-push connecting plate, and the inner side wall of the side-push connecting plate is fixed with side limit blocks of the same number as and adapted to the guide grooves, and the side limit blocks facing the longitudinal grid bar side are formed with U-shaped grooves adapted to the ends of the longitudinal grid bars on the side walls, and a push-pull type quick clamp fixed to the bottom plate is provided on the outer side of the side-push fixing block, and the U-shaped groove on the side limit block is tightened with the side-push fixing block in the adapted state of the longitudinal grid bar end at the corresponding position by the push-pull type quick clamp to achieve positioning in the length direction of the longitudinal grid bar.

[0006] Furthermore, the side limit block is in an inverted L-shaped structure, the lower end of the side limit block is adapted to be in the guide groove, and the U-shaped groove is arranged on the end surface of the horizontal plate at the upper end of the side limit block.

[0007] Furthermore, the downward pressure positioning device includes a horizontal clamp and a pressure plate, and each end of the pressure plate is respectively located on the longitudinal bars and transverse bars at corresponding positions. The clamp base plate of the horizontal clamp is fixed to the base plate, and the lifting end of the horizontal clamp is located above the pressure plate. The lifting end is moved downward by adjusting the horizontal clamp to press the pressure plate, thereby realizing the compression and positioning of the longitudinal bars and transverse bars.

[0008] Furthermore, the pressure plate includes a T-shaped plate and a U-shaped plate, the U-shaped plate is used to compress and position the L-shaped cross bars, the horizontal cross bars adjacent to the L-shaped cross bars, and the longitudinal bars between the L-shaped cross bars and the horizontal cross bars, and the T-shaped plate is used to compress and position the horizontal cross bars on the opposite side of the L-shaped cross bars and the longitudinal bars at both ends of the horizontal cross bars.

[0009] Furthermore, the positioning support assembly includes a plurality of middle limit blocks with U-shaped long grooves on the upper end surfaces, the upper surface of the base plate is provided with long grooves corresponding to and parallel to the positions of the transverse bars, a plurality of middle limit blocks with U-shaped long grooves fixed in the long grooves and adapted to the transverse bars at the corresponding positions, and a plurality of middle limit blocks with U-shaped long grooves fixed in the guide grooves and adapted to the horizontal sections of the longitudinal bars at the corresponding positions.

[0010] Furthermore, the middle limit block below the L-shaped horizontal grille bar in the protective grille assembly has the same shape as and is adapted to the corner of the L-shaped horizontal grille bar.

[0011] Furthermore, the bottom plate surface is formed with positioning holes corresponding to the positions of the through holes at both ends of a long side of the protection grid bottom plate, and the protection grid bottom plate is positioned on the bottom plate by positioning pins inserted into the positioning holes and the through holes.

[0012] Furthermore, the four corner positions of the bottom surface of the base plate are all fixed with anchor pads, and the side bottom plate pads are all fixed with the two side edges of the middle part of the bottom surface of the base plate.

[0013] The advantages of this utility model compared with the prior art:

[0014] 1. This technical solution utilizes the structural characteristics of the protective grille bottom plate itself, and sets positioning holes on the bottom plate corresponding to the positions of the through holes at both ends of one long side of the protective grille bottom plate, and reliably positions the protective grille bottom plate on the bottom plate through positioning pins inserted into the positioning holes and the through holes. The positioning structure is simple and the operation is convenient and quick;

[0015] 2. This technical solution uses a side push positioning device arranged on the bottom plate to ensure the distance between two adjacent longitudinal bars while achieving reliable positioning of the longitudinal bars in the length direction;

[0016] 3. This technical solution uses a pressure plate and a horizontal clamp fixed on the bottom plate to press and fix the longitudinal and transverse bars, ensuring the reliability of the upper and lower positions of the longitudinal and transverse bars during welding, and ensuring welding quality and welding accuracy;

[0017] 4. This technical solution has a simple structure, novel design, and convenient and quick operation. It solves the difficulty of welding positioning of the protective grille assembly, improves welding quality and efficiency, reduces the difficulty of welding positioning, and facilitates mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model in use state;

[0019] Figure 2 This is a schematic diagram of the bottom plate structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the limit block in the utility model;

[0021] Figure 4 Schematic diagram of the protective grille assembly structure. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiment of the present utility model Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0025] Welding positioning tooling for protective grille assemblies, such as Figure 1-2 As shown, it includes a base plate 4, and the protective grid base plate 1 in the protective grid assembly is centrally positioned on the base plate 4. A guide groove 17 is formed in the middle of the base plate 4 which is parallel to its length direction and has the same number of longitudinal bars 2 in the protective grid assembly, and two groups of side-push positioning devices which are telescopically controllably installed on the base plate 4 and adapted to be connected to the guide groove 17 are located on the outer side of the end of the protective grid base plate 1. A positioning support component for positioning and supporting the longitudinal bars 2 and transverse bars 3 in the protective grid assembly is provided on the base plate 4, and a plurality of the longitudinal bars 2 are positioned by the side-push positioning devices at their ends, and two groups of downward-pressing positioning devices fixed to the base plate 4 are provided on the outer side of the long side of the protective grid base plate 1, and are used to be pressed and fixed to the protective grid base plate 1 and a plurality of transverse bars 3 welded to the two longitudinal bars 2 by the downward-pressing positioning device.

[0026] The specific structure of the side-push positioning device is as follows: the side-push positioning device includes a vertically arranged side-push connecting plate 6, a side-push fixing block 7 and a side limit block 8, the side-push fixing block 7 is centrally fixed on the outer wall of the side-push connecting plate 6, and the inner wall of the side-push connecting plate 6 is fixed with side limit blocks 8 of the same number and adapted to the guide groove 17, the side limit block 8 is formed with a U-shaped groove 9 adapted to the end of the longitudinal grid bar 2 on the side wall facing the longitudinal grid bar 2, a push-pull type quick clamp 10 fixed to the bottom plate 4 is provided on the outer side of the side-push fixing block 7, and the U-shaped groove 9 on the side limit block 8 is tightened with the side-push fixing block 7 in the adapted state of the end of the longitudinal grid bar 2 at the corresponding position by the push-pull type quick clamp 10, so as to realize the positioning of the longitudinal grid bar 2 in the length direction; specifically, the side limit block 8 is an inverted L-shaped structure, the lower end of the side limit block 8 is adapted to the guide groove 17, and the U-shaped groove 9 is arranged on the end face of the upper horizontal plate of the side limit block 8.

[0027] In the above structure, by moving the side push fixing block 7 left and right, the limit block 8 slides left and right in the guide groove 17, so as to adjust the position of the side limit block 8 and the longitudinal grid bar 2 in an adaptive contact or separation state. When the U-shaped grooves 9 on the multiple side limit blocks 8 on both sides of the bottom plate 4 are in an adaptive state with the ends of the longitudinal grid bar 2 at the corresponding positions, the side push fixing block 7 is tightened by the push-pull quick clamp 10 to complete the reliable positioning of the longitudinal grid bar 2 in the length direction, thereby realizing the reliable positioning of the longitudinal grid bar in the length direction.

[0028] The specific structure of the downward pressure positioning device is as follows: the downward pressure positioning device includes a horizontal clamp 11 and a pressure plate 5, each end of the pressure plate 5 is respectively located on the longitudinal grid bar 2 and the transverse grid bar 3 at the corresponding position, the clamp bottom plate of the horizontal clamp 11 is fixed on the bottom plate 4, and the lifting end of the horizontal clamp 11 is located above the pressure plate 5, and the lifting end is moved downward by adjusting the horizontal clamp 11 to press the pressure plate 5, so as to realize the pressing and positioning of the longitudinal grid bar 2 and the transverse grid bar 3; specifically, the pressure plate 5 includes a T-shaped plate and a U-shaped plate, and the U The mold plate is used to press and position the L-shaped horizontal grid bar 3, the horizontal horizontal grid bar 3 adjacent to the L-shaped horizontal grid bar 3, and the longitudinal grid bar 2 between the L-shaped horizontal grid bar 3 and the horizontal horizontal grid bar 3, and the T-shaped plate is used to press and position the horizontal horizontal grid bar 3 on the opposite side of the L-shaped horizontal grid bar 3 and the longitudinal grid bars 2 at both ends of the horizontal horizontal grid bar 3; in the above structure, the longitudinal grid bar 2 and the horizontal grid bar 3 are pressed and fixed to ensure the reliability of the upper and lower positions of the longitudinal grid bar 2 and the horizontal grid bar 3 during welding, and to ensure the welding quality and welding accuracy;

[0029] The specific structure of the positioning support assembly is as follows: the positioning support assembly includes a plurality of middle limit blocks 18 with U-shaped long grooves 12 formed on the upper end surfaces, such as Figure 3As shown, the upper surface of the bottom plate 4 is formed with a long groove 19 corresponding to and parallel to the position of the transverse bar 3, and a plurality of U-shaped long grooves 12 are fixed in the long groove 19 and a middle limit block 18 adapted to the transverse bar 3 at the corresponding position is adapted, and the transverse bar 3 is adapted in the U-shaped long groove 12, so that the middle limit block 18 supports and positions the transverse bar 3, and a plurality of U-shaped long grooves 12 are fixed in the guide groove 17 and a middle limit block 18 adapted to the horizontal section of the longitudinal bar 2 at the corresponding position is supported and positioned by the middle limit block 18, wherein a longitudinal bar 2 is positioned by at least two middle limit blocks 18; specifically, the middle limit block 18 below the L-shaped transverse bar 3 in the protective grille assembly has the same shape as and is adapted to the corner of the L-shaped transverse bar 3.

[0030] The positioning structure of the protective grid bottom plate 1 on the bottom plate 4 is as follows: the bottom plate 4 is provided with positioning holes 13 corresponding to the through-hole positions at both ends of a long side of the protective grid bottom plate 1, and the protective grid bottom plate 1 is positioned on the bottom plate 4 by means of positioning pins 14 inserted into the positioning holes 13 and the through-holes; wherein, the four corner positions of the bottom surface of the bottom plate 4 are fixed with anchor pads 15, and the two side edges of the middle part of the bottom surface of the bottom plate 4 are fixed with side bottom plate pads 16; in the above structure, the structural characteristics of the protective grid bottom plate 1 are utilized to set positioning holes 13 corresponding to the through-hole positions at both ends of a long side of the protective grid bottom plate 1 on the bottom plate 4, and the protective grid bottom plate 1 is reliably positioned on the bottom plate 4 by means of positioning pins 14 inserted into the positioning holes 13 and the through-holes, and the positioning structure is simple and the operation is convenient and quick;

[0031] The technical solution has a simple structure, novel design, and convenient and quick operation. It solves the difficulty of welding positioning of the protective grille assembly, improves welding quality and efficiency, reduces the difficulty of welding positioning, and facilitates mass production.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding positioning tool for a protective grille assembly, characterized in that: The invention comprises a bottom plate (4), wherein a protective grille bottom plate (1) in a protective grille assembly is centrally positioned on the bottom plate (4), a guide groove (17) parallel to its length direction and having the same number as the longitudinal bars (2) in the protective grille assembly is formed in the middle of the bottom plate (4) surface, and two sets of side-push positioning devices which are telescopically controllably mounted on the bottom plate (4) and adapted to be connected to the guide groove (17) are located outside the end of the protective grille bottom plate (1), and a positioning support assembly for positioning and supporting the longitudinal bars (2) and transverse bars (3) in the protective grille assembly is provided on the bottom plate (4), and a plurality of the longitudinal bars (2) are positioned by the side-push positioning devices at their ends, and two sets of downward-pressing positioning devices fixed on the bottom plate (4) are provided on the outside of the long side of the protective grille bottom plate (1), and are used to press and fix a plurality of transverse bars (3) welded to the protective grille bottom plate (1) and two longitudinal bars (2) through the downward-pressing positioning devices.

2. The welding positioning tool for the protective grille assembly according to claim 1, characterized in that: The side-push positioning device comprises a vertically arranged side-push connecting plate (6), a side-push fixing block (7) and a side limit block (8); the side-push fixing block (7) is centrally fixed on the outer side wall of the side-push connecting plate (6), and the side limit blocks (8) of the same number as and adapted to the guide grooves (17) are fixed on the inner side wall of the side-push connecting plate (6); a U-shaped groove (9) adapted to the end of the longitudinal grid bar (2) is formed on the side wall of the side limit block (8) facing the longitudinal grid bar (2); a push-pull quick clamp (10) fixed to the bottom plate (4) is provided on the outer side of the side-push fixing block (7); and the U-shaped groove (9) on the side limit block (8) is pressed against the side-push fixing block (7) in an adapted state with the end of the longitudinal grid bar (2) at the corresponding position by the push-pull quick clamp (10), so as to realize the positioning of the longitudinal grid bar (2) in the length direction.

3. The welding positioning tool for the protective grille assembly according to claim 2, characterized in that: The side limit block (8) is an inverted L-shaped structure, the lower end of the side limit block (8) is adapted to fit in the guide groove (17), and the U-shaped groove (9) is provided on the end surface of the upper horizontal plate of the side limit block (8).

4. The welding positioning tool for the protective grille assembly according to claim 1, characterized in that: The downward pressure positioning device comprises a horizontal clamp (11) and a pressure plate (5), each end of the pressure plate (5) is respectively located on the longitudinal grid bar (2) and the transverse grid bar (3) at the corresponding position, the clamp base plate of the horizontal clamp (11) is fixed on the base plate (4), and the lifting end of the horizontal clamp (11) is located above the pressure plate (5), and the lifting end is moved downward to press the pressure plate (5) by adjusting the horizontal clamp (11), thereby realizing the compression and positioning of the longitudinal grid bar (2) and the transverse grid bar (3).

5. The welding positioning tool for the protective grille assembly according to claim 4, characterized in that: The pressing plate (5) comprises a T-shaped plate and a U-shaped plate. The U-shaped plate is used to press and position the L-shaped transverse bars (3), the horizontal transverse bars (3) adjacent to the L-shaped transverse bars (3), and the longitudinal bars (2) between the L-shaped transverse bars (3) and the horizontal transverse bars (3). The T-shaped plate is used to press and position the horizontal transverse bars (3) on the opposite side of the L-shaped transverse bars (3) and the longitudinal bars (2) at both ends of the horizontal transverse bars (3).

6. The welding positioning tool for the protective grille assembly according to claim 1, characterized in that: The positioning support assembly comprises a plurality of middle limit blocks (18) with U-shaped long grooves (12) formed on the upper end faces, the upper plate surface of the bottom plate (4) is formed with long grooves (19) corresponding to and parallel to the positions of the transverse bars (3), a plurality of middle limit blocks (18) with U-shaped long grooves (12) adapted to the transverse bars (3) at corresponding positions are fixed in the long grooves (19), and a plurality of middle limit blocks (18) with U-shaped long grooves (12) adapted to the horizontal sections of the longitudinal bars (2) at corresponding positions are fixed in the guide grooves (17).

7. The welding positioning tool for the protective grille assembly according to claim 6, characterized in that: The middle limit block (18) below the L-shaped horizontal grille bar (3) in the protective grille assembly has the same shape as and is compatible with the corner of the L-shaped horizontal grille bar (3).

8. The welding positioning tool for the protective grille assembly according to claim 1, characterized in that: The bottom plate (4) is provided with positioning holes (13) corresponding to the positions of the through holes at both ends of a long side of the protection grid bottom plate (1), and the protection grid bottom plate (1) is positioned on the bottom plate (4) by means of positioning pins (14) inserted into the positioning holes (13) and the through holes.

9. The welding positioning tool for the protective grille assembly according to any one of claims 1 to 8, characterized in that: The four corner positions of the bottom surface of the bottom plate (4) are all fixed with anchor pads (15), and the side bottom plate pads (16) are all fixed with the edges of both sides of the middle part of the bottom surface of the bottom plate (4).

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