Spot welding positioning device for tail lamp protective fence framework

Abstract

According to the spot welding positioning device for the tail lamp protective fence framework, two connecting end rods are positioned on the inner sides of vertical plates correspondingly, and a plurality of supporting positioning plates with the lower ends fixed to the upper end face of a bottom plate are evenly distributed between the vertical edges of the two vertical plates; horizontal sections of two horizontal U-shaped rods of which the opening ends are oppositely arranged are adaptively positioned on the supporting positioning plates on the same side, the end parts of the horizontal U-shaped rods abut against the outer walls of the connecting end rods at the corresponding positions, and a plurality of positioning grooves which are positioned between the two vertical plates and are parallel to the width direction of the bottom plate are uniformly distributed in the upper end surface of the bottom plate; the inner walls of the upper ends of the vertical U-shaped rods make contact with the outer walls of the horizontal sections of the horizontal U-shaped rods on the corresponding sides, and the horizontal sections of the lower ends of the vertical U-shaped rods are located in the locating grooves in a matched mode. According to the tail lamp protective fence fixing piece welding device, the problems of low efficiency, low precision and poor consistency of manual measurement and spot welding of tail lamp protective fence fixing pieces are solved, the welding quality and efficiency of tail lamp protective fence frameworks are improved, batch production of the tail lamp protective fence frameworks is facilitated, the positioning precision is high, and the welding consistency is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of spot welding positioning aids, and in particular relates to a spot welding positioning device for a taillight protection grille frame. Background Art

[0002] At present, the taillights of trucks are installed at the rear end of the vehicle through brackets, and the taillights are protected by taillight protection grilles arranged on the brackets to reduce damage to the taillights. The current taillight protection grilles are supported at the rear end of the vehicle by taillight protection grille frames, which are welded by two horizontal U-shaped rods with openings facing each other and distributed laterally, a plurality of vertical U-shaped rods with openings facing upward, and connecting end rods at both ends. Before full welding, each part needs to be spot welded and formed. The taillight protection grille frame has many spot-welded rods and has high requirements on forming quality. If manual measurement spot welding is used, the spot welding efficiency and accuracy are low, the labor intensity is high, and the spot welding consistency is poor. Therefore, in order to improve the spot welding efficiency, ensure the welding quality, and improve the welding consistency of the taillight protection grille, it is necessary to design a spot welding aid to solve the above technical problems. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a spot welding positioning device for a taillight protection grille frame is provided, which adopts a positioning structure composed of a base plate, a vertical plate and a supporting positioning plate to achieve reliable positioning of each rod of the taillight protection grille frame, solves the problems of low efficiency, low precision and poor consistency in manual measurement of spot welding taillight protection grille parts, improves the welding quality and efficiency of the taillight protection grille frame, facilitates the mass production of the taillight protection grille frame, has a simple structure, a novel and reasonable design, low cost, high positioning precision, good welding consistency, and has a high use value.

[0004] The technical solution adopted by the utility model: a spot welding positioning device for a taillight protection grille frame, comprising a base plate, wherein two vertical plates arranged with plate surfaces facing each other are symmetrically fixed on the upper end surface of the base plate, and two connecting end rods are respectively positioned on the inner sides of the vertical plates, and a plurality of supporting positioning plates whose lower ends are fixed to the upper end surface of the base plate are evenly distributed between the vertical edges of the two vertical plates, and the horizontal sections of the horizontal U-shaped rods arranged with two open ends facing each other are adapted to be positioned on a plurality of supporting positioning plates on the same side, and the ends of the horizontal U-shaped rods are against the outer walls of the connecting end rods at corresponding positions, and a plurality of positioning grooves are evenly distributed on the upper end surface of the base plate and arranged parallel to the width direction of the base plate, and the horizontal sections of the lower ends of the vertical U-shaped rods whose inner walls of the upper ends are in contact with the outer walls of the horizontal sections of the horizontal U-shaped rods on the corresponding sides are adapted to be positioned in the positioning grooves, and the connecting end rods, the horizontal U-shaped rods and the vertical U-shaped rods are spot welded and fixedly connected to form the taillight protection grille frame.

[0005] Among them, two U-shaped positioning grooves are symmetrically formed along the upper end plate of the vertical plate, one of the bending edges of the two upper ends of the connecting end rod is arranged outward and adapted to the U-shaped positioning groove on the vertical plate on the same side, and the bending edges of the two upper ends of the other connecting end rod correspond to the position of the U-shaped positioning groove on the vertical plate on the same side and are arranged inward, and the horizontal sections of the lower ends of the two connecting end rods are adapted to the long positioning grooves on the bottom plate.

[0006] Furthermore, a U-shaped groove adapted to the horizontal section of the horizontal U-shaped rod is formed on the upper surface of the support positioning plate, and the horizontal section of the horizontal U-shaped rod is adapted to the U-shaped groove.

[0007] Furthermore, the width dimension of the supporting positioning plate is not greater than the inner width dimensions of two adjacent positioning grooves.

[0008] Furthermore, through holes are formed on both sides of the vertical plate surface, which are respectively distributed below the end of the horizontal U-shaped rod and inside the vertical rod of the connecting end rod, and two positioning pins pass through the through holes to respectively prevent the horizontal U-shaped rod and the connecting end rod from deformation.

[0009] The advantages of this utility model compared with the prior art:

[0010] 1. This technical solution adopts a positioning structure consisting of a bottom plate, a vertical plate and a supporting positioning plate to achieve reliable positioning of each rod of the taillight protection grille frame, solves the problems of low efficiency, low precision and poor consistency of manual measurement and spot welding of taillight protection grille parts, improves the welding quality and efficiency of the taillight protection grille frame, and facilitates the mass production of the taillight protection grille frame;

[0011] 2. This technical solution realizes the positioning of two horizontal U-shaped rods relative to the connecting end rods by means of multiple support positioning plates whose lower ends are fixed to the upper end surface of the bottom plate and are arranged between the vertical edges of the vertical plates, thereby providing the horizontal U-shaped rods with the support positioning conditions of the required welding height, without the need for measurement, thus improving the positioning efficiency and accuracy, and achieving good height consistency of the horizontal U-shaped rods;

[0012] 3. This technical solution provides through holes on both sides of the vertical plate surface, which are respectively distributed below the ends of the horizontal U-shaped rods and inside the vertical rods of the connecting end rods, and two positioning pins pass through the through holes to respectively prevent the horizontal U-shaped rods and the connecting end rods from deformation, thereby improving the welding quality when spot welding the horizontal U-shaped rods and the connecting end rods;

[0013] 4. This technical solution has a simple structure, novel and reasonable design, low cost, high positioning accuracy, good welding consistency, and high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiment of the present utility model Figure 1 , 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.

[0016] 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.

[0017] 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.

[0018] Spot welding positioning device for taillight protection grille frame, such as Figure 1 As shown, it includes a base plate 1, and two vertical plates 2 with plate surfaces facing each other are symmetrically fixed on the upper end surface of the base plate 1, and two connecting end rods 5 are respectively positioned on the inner sides of the vertical plates 2, and a plurality of supporting positioning plates 3 with lower ends fixed to the upper end surface of the base plate 1 are evenly distributed between the vertical edges of the two vertical plates 2, and the horizontal sections of the horizontal U-shaped rods 4 with two open ends facing each other are adapted to be positioned on the multiple supporting positioning plates 3 on the same side, and the ends of the horizontal U-shaped rods 4 are against the outer walls of the connecting end rods 5 at corresponding positions, and a plurality of positioning grooves 8 are evenly distributed on the upper end surface of the base plate 1 and are arranged between the two vertical plates 2 and parallel to the width direction of the base plate 1, and the horizontal sections of the lower ends of the vertical U-shaped rods 6 whose inner walls of the upper ends are in contact with the outer walls of the horizontal sections of the horizontal U-shaped rods 4 on the corresponding sides are adapted to be positioned in the positioning grooves 8, and the connecting end rods 5, the horizontal U-shaped rods 4 and the vertical U-shaped rods 6 are spot welded and fixedly connected to form a taillight protection grille skeleton.

[0019] In the above structure, a positioning structure including a bottom plate 1, a vertical plate 2 and a supporting positioning plate 3 is adopted to realize reliable positioning of each rod of the taillight protection grille frame, solve the problems of low efficiency, low precision and poor consistency in manual measurement of spot welding of taillight protection grille parts, improve the welding quality and efficiency of the taillight protection grille frame, and facilitate the mass production of the taillight protection grille frame; through a plurality of supporting positioning plates 3 whose lower ends are fixed to the upper end surface of the bottom plate 1 and are arranged between the vertical edges of the vertical plates 2, the positioning of the two horizontal U-shaped rods 4 relative to the connecting end rods 5 is realized, and the supporting positioning conditions of the required welding height are provided for the horizontal U-shaped rods 4, and no measurement is required, thereby improving the positioning efficiency and precision, and the height consistency of the horizontal U-shaped rods 4 is good;

[0020] The positioning structure of the U-shaped positioning groove 7 of the vertical plate 2 is specifically as follows: two U-shaped positioning grooves 7 are symmetrically formed along the upper end plate of the vertical plate 2, one of the bending edges of the two upper ends of the connecting end rod 5 is arranged outward and adapted to the U-shaped positioning groove 7 on the vertical plate 2 on the same side, and the bending edges of the two upper ends of the other connecting end rod 5 correspond to the position of the U-shaped positioning groove 7 on the vertical plate 2 on the same side and are arranged inward. A groove connected to the U-shaped positioning groove 7 can be arranged on the inner wall of the vertical plate 2, so that a small part of the vertical rod of the connecting end rod 5 is positioned in the groove, which ensures that the vertical edge position of the connecting end rod 5 is reliable during welding, and is conducive to the smooth welding of the end of the horizontal U-shaped rod 4 and the vertical edge of the connecting end rod 5. The horizontal sections of the lower ends of the two connecting end rods 5 are adapted to the positioning long groove 11 on the base plate 1.

[0021] The positioning structure of the support positioning plate 3 for the horizontal U-shaped rod 4 is as follows: the upper end surface of the support positioning plate 3 is formed with a U-shaped groove 9 adapted to the horizontal section of the horizontal U-shaped rod 4, and the horizontal section of the horizontal U-shaped rod 4 is adapted to the U-shaped groove 9, thereby supporting the horizontal U-shaped rod 4 at the required welding height while ensuring the shape of the horizontal U-shaped rod 4; specifically, the width dimension of the support positioning plate 3 is not greater than the inner width dimensions of the two adjacent positioning grooves 8, so as to avoid interference of the support positioning plate 3 with the positioning grooves 8.

[0022] The anti-deformation positioning structure of the horizontal U-shaped rod 4 and the connecting end rod 5 during spot welding is specifically as follows: both sides of the plate surface of the vertical plate 2 are provided with through holes 10 respectively distributed below the end of the horizontal U-shaped rod 4 and on the inner side of the vertical rod of the connecting end rod 5, and two positioning pins pass through the through holes 10 to respectively perform anti-deformation positioning on the horizontal U-shaped rod 4 and the connecting end rod 5, thereby improving the welding quality of the horizontal U-shaped rod 4 and the connecting end rod 5 during spot welding; when welding a cross bar between the two connecting end rods 5, the positioning columns distributed on both sides of the cross bar can be fixed on the upper end surface of the bottom plate 1 close to the welding position to position the cross bar, thereby avoiding the problem of heat deformation of the cross bar during welding, thereby improving the welding quality.

[0023] The technical solution has a simple structure, a novel and reasonable design, a low cost, a high positioning accuracy, good welding consistency, and a high use value.

[0024] 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-restrictive 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 be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] 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 spot welding positioning device for a taillight protection grille frame, characterized in that: The invention comprises a bottom plate (1), wherein two vertical plates (2) with plate surfaces facing each other are symmetrically fixed on the upper end surface of the bottom plate (1), and two connecting end rods (5) are respectively positioned on the inner sides of the vertical plates (2), and a plurality of supporting positioning plates (3) with lower ends fixed to the upper end surface of the bottom plate (1) are evenly distributed between the vertical edges of the two vertical plates (2), and the horizontal sections of two horizontal U-shaped rods (4) with open ends facing each other are adapted to be positioned on the plurality of supporting positioning plates (3) on the same side, and the ends of the horizontal U-shaped rods (4) are against the opposite ends. On the outer wall of the connecting end rod (5) at the corresponding position, the upper end surface of the bottom plate (1) is evenly distributed with a plurality of positioning grooves (8) located between the two vertical plates (2) and arranged parallel to the width direction of the bottom plate (1), and the horizontal sections of the lower ends of the vertical U-shaped rods (6) whose inner walls of the upper ends contact the outer walls of the horizontal sections of the corresponding side horizontal U-shaped rods (4) are adapted to be positioned in the positioning grooves (8), and the connecting end rod (5), the horizontal U-shaped rod (4) and the vertical U-shaped rod (6) are spot-welded and fixedly connected to form a taillight protection grille framework.

2. The spot welding positioning device for the taillight protection grille frame according to claim 1, characterized in that: The upper end plate of the vertical plate (2) is symmetrically provided with two U-shaped positioning grooves (7), wherein the two upper ends of one of the connecting end rods (5) are bent with their edges facing outward and fit into the U-shaped positioning groove (7) on the vertical plate (2) on the same side, and the two upper ends of the connecting end rods (5) are bent with their edges corresponding to the positions of the U-shaped positioning grooves (7) on the vertical plate (2) on the same side and are arranged inward, and the horizontal sections of the lower ends of the two connecting end rods (5) fit into the positioning long grooves (11) on the bottom plate (1).

3. The spot welding positioning device for the taillight protection grille frame according to claim 1, characterized in that: The upper end surface of the support positioning plate (3) is provided with a U-shaped groove (9) adapted to the horizontal section of the horizontal U-shaped rod (4), and the horizontal section of the horizontal U-shaped rod (4) is adapted to fit into the U-shaped groove (9).

4. The spot welding positioning device for the taillight protection grille frame according to claim 3, characterized in that: The width dimension of the supporting positioning plate (3) is not greater than the inner width dimensions of two adjacent positioning grooves (8).

5. The spot welding positioning device for the taillight protection grille frame according to any one of claims 1 to 4, characterized in that: Through holes (10) are formed on both sides of the plate surface of the vertical plate (2), which are respectively distributed below the ends of the horizontal U-shaped rods (4) and inside the vertical rods of the connecting end rods (5), and two positioning pins pass through the through holes (10) to respectively prevent the horizontal U-shaped rods (4) and the connecting end rods (5) from deformation.

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