Welding fixture

Abstract

The utility model discloses a welding fixture. The welding clamp comprises a supporting frame, a table top, a plurality of positioning pieces arranged in the circumferential direction of the table top and a plurality of pressing pieces. The heavy truck side protection plate frame abuts against the positioning piece. The heavy truck side guard plate frame is pressed on the table top through the pressing piece. In this way, when the heavy truck side guard plate frame is welded, the heavy truck side guard plate frame can abut against the positioning piece, and the heavy truck side guard plate frame is pressed on the table top through the pressing piece, so that the welding tolerance error of the welded heavy truck side guard plate frame is small, and the welding precision is high.

Description

Technical Field

[0001] This application relates to the technical field of vehicle welding, and particularly relates to a welding jig. Background Art

[0002] In the related art, when welding the side guard frame of a heavy truck, the produced pipes of the side guard frame of the heavy truck are often directly placed on the table for assembly welding, resulting in a large welding tolerance error and low welding precision for the side guard frame of the heavy truck. Summary of the Utility Model

[0003] In view of this, the present utility model aims to solve at least one of the problems in the related art to some extent. For this purpose, the object of this application is to provide a welding jig.

[0004] This application provides a welding jig for welding the side guard frame of a heavy truck. The welding jig includes a support frame, a table, a plurality of positioning members and pressing members arranged along the circumference of the table. The side guard frame of the heavy truck abuts against the positioning members. The pressing members press the side guard frame of the heavy truck against the table.

[0005] In some embodiments, the pressing members are arranged on the table and located on one side of the positioning members. The pressing members and the positioning members cooperate with each other to press the side guard frame of the heavy truck between the pressing surface of the pressing members and the positioning surface of the positioning members.

[0006] In some embodiments, the positioning member includes a positioning portion and at least one positioning pin. The positioning portion is arranged on the table, the positioning pin is arranged on the positioning portion, and the positioning pin passes through the positioning hole of the side guard frame of the heavy truck, so that the positioning portion is connected to the side guard frame of the heavy truck.

[0007] In some embodiments, when there are multiple positioning pins arranged on the positioning surface, the tolerance between two adjacent positioning pins among the multiple positioning pins is less than or equal to ±0.15 mm.

[0008] In some embodiments, the pressing member includes a fixing portion, a rotating rod and a pressing portion. The fixing portion is arranged on the table, the rotating rod is connected to the fixing portion, the pressing portion is connected to the rotating rod, and the rotating rod can rotate towards the pressing portion, so that the pressing portion and the positioning member cooperate with each other to press the side guard frame of the heavy truck between the pressing portion and the positioning surface of the positioning member.

[0009] In some embodiments, the table includes two cross beams and a plurality of longitudinal beams arranged between the two cross beams. The positioning members and the pressing members are arranged on both the cross beams and the longitudinal beams.

[0010] In some embodiments, the welding fixture further includes a flipping assembly, which is respectively arranged at both ends of the support frame, the tabletop is arranged on the flipping assembly, and the flipping assembly can drive the tabletop to flip in the height direction of the support frame.

[0011] In some embodiments, the flipping assembly includes a bearing seat and a rotating shaft arranged on the bearing seat, and the tabletop is connected to the rotating shaft.

[0012] In some embodiments, a gripping portion is arranged at one end of the rotating shaft.

[0013] In some embodiments, the support frame is in the shape of a frustum of a pyramid.

[0014] When the welding fixture according to the embodiment of the present application welds the side guard frame of a heavy truck, the side guard frame of the heavy truck can be abutted against the positioning member, and the side guard frame of the heavy truck can be pressed against the tabletop by the pressing member, so that the welding tolerance error of the welded side guard frame of the heavy truck is small and the welding precision is high.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0017] Figure 1 is a three-dimensional structural schematic diagram of a welding fixture according to some embodiments of the present application;

[0018] Figure 2 is a top view schematic diagram of a welding fixture according to some embodiments of the present application;

[0019] Figure 3 is a structural schematic diagram of the positioning member and the pressing member cooperating to press the side guard frame of the heavy truck;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the welding fixture pressing the side guard frame of the heavy truck and flipping it;

[0021] Description of the Reference Numerals:

[0022] Welding fixture 100;

[0023] Support frame 10; tabletop 30, cross beam 31, longitudinal beam 33; positioning member 50, positioning portion 51, positioning pin 53; pressing member 70, fixing portion 71, rotating portion 73, pressing portion 75; flipping assembly 90, rotating shaft 93, holding portion 95;

[0024] Heavy truck side guard frame 200. Detailed implementation manners

[0025] The following describes in detail the implementation manners of the present application. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation to the present application.

[0026] In the description of the present application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0027] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of communicating with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] The following disclosure provides many different implementation manners or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various implementation manners and / or settings discussed.

[0029] The following describes in detail the implementation manners of the present application. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation to the present application.

[0030] Please combine with Figures 1 to 3 In this application, a welding fixture 100 is provided for welding the side guard frame 200 of a heavy truck. The welding fixture 100 includes a support frame 10, a table 30, a plurality of positioning members 50 and pressing members 70 arranged along the circumference of the table 30. The side guard frame 200 of the heavy truck abuts against the positioning members 50. The pressing members 70 press the side guard frame 200 of the heavy truck against the table 30.

[0031] Specifically, the table 30 can be arranged on the support frame 10 by screwing or clamping, so as to facilitate the installation and disassembly of the table 30. The table 30 can also be arranged on the support frame 10 by welding, so that the table 30 is firmly arranged on the support frame 10.

[0032] A plurality of positioning members 50 and pressing members 70 corresponding to the pipes of the side guard frame 200 of the heavy truck can be arranged along the axial direction of the table 30, that is, positioning members 50 and pressing members 70 are arranged at positions on the table 30 corresponding to each pipe of the side guard frame 200 of the heavy truck. The positioning members 50 and the pressing members 70 can be arranged on the table 30 by welding or screwing. The positioning members 50 and the pressing members 70 can cooperate with each other to position and press the side guard frame 200 of the heavy truck on the table 30.

[0033] In one embodiment, when welding the side guard frame 200 of the heavy truck, the side guard frame 200 of the heavy truck can be placed on the table 30 to abut against the positioning members 50, and the side guard frame 200 of the heavy truck can be pressed against the table 30 by the pressing members 70, so that through the cooperation of the positioning members 50 and the pressing members 70, the welding deformation amount of the side guard frame 200 of the heavy truck is minimized, so that the welding tolerance error of the welded side guard frame 200 of the heavy truck is small and the welding accuracy is high.

[0034] It should be noted that the support frame 10, the table 30, the positioning members 50 and the pressing members 70 can all be made of metal. That is, when the support frame 10, the table 30, the positioning members 50 and the pressing members 70 are made of metal, for example, they can be made of aluminum alloy, so as to reduce the overall weight of the welding fixture 100 and at the same time extend the service life of the support frame 10, the table 30, the positioning members 50 and the pressing members 70.

[0035] In this way, when the welding fixture 100 of the embodiment of this application welds the side guard frame 200 of the heavy truck, the side guard frame 200 of the heavy truck can be abutted against the positioning members 50, and the side guard frame 200 of the heavy truck can be pressed against the table 30 by the pressing members 70, so that the welding tolerance error of the welded side guard frame 200 of the heavy truck is small and the welding accuracy is high.

[0036] It can be understood that when welding the heavy truck side guard frame 200 in the embodiment of the present application, the heavy truck side guard frame 200 can be abutted against the positioning member 50, and the heavy truck side guard frame 200 can be pressed against the table 30 by the pressing member 70, so that the welding tolerance of the heavy truck side guard frame 200 can be increased from the original ±2 mm to ±0.5 mm. Therefore, the welding fixture 100 adopting the embodiment of the present application can make the welding tolerance error of the welded heavy truck side guard frame 200 smaller and the welding precision higher.

[0037] Please refer to Figure 1 and Figure 3 , in some embodiments, the pressing member 70 is arranged on the table 30 and located on one side of the positioning member 50. The pressing member 70 and the positioning member 50 cooperate with each other to press the heavy truck side guard frame 200 between the pressing surface of the pressing member 70 and the positioning surface of the positioning member 50.

[0038] Specifically, the pressing member 70 can be arranged on the table 30 by screwing or snapping, so as to facilitate the installation and disassembly of the pressing member 70. The pressing member 70 can also be arranged on the table 30 by welding, so that the pressing member 70 is firmly arranged on the table 30. When the pressing member 70 is arranged on the table 30, it can be arranged at a position on the table 30 located on one side of the positioning member 50, so as to facilitate the pressing member 70 and the positioning member 50 to cooperate with each other to press the heavy truck side guard frame 200 between the pressing surface of the pressing member 70 and the positioning surface of the positioning member 50.

[0039] In one embodiment, after the heavy truck side guard frame 200 abuts against the positioning member 50, the heavy truck side guard frame 200 can be firmly pressed between the pressing surface of the pressing member 70 and the positioning surface of the positioning member 50 by the pressing force generated by the pressing member 70, minimizing the welding deformation amount of the heavy truck side guard frame 200 and making the welding tolerance error of the welded heavy truck side guard frame 200 smaller.

[0040] In some embodiments, the positioning member 50 includes a positioning portion 51 and at least one positioning pin 53. The positioning portion 51 is arranged on the table 30. The positioning pin 53 is arranged on the positioning portion 51. The positioning pin 53 penetrates through the positioning hole of the heavy truck side guard frame 200, connecting the positioning portion 51 with the heavy truck side guard frame 200.

[0041] Specifically, the positioning part 51 can be arranged on the tabletop 30 by welding or screwing. The positioning pin 53 can be arranged on the positioning part 51 by screwing or snapping. The number of positioning pins 53 arranged on the positioning part 51 can be one or more. That is, when there are multiple positioning parts 51 arranged on the positioning pin 53, for example, there can be 2, and the two positioning pins 53 can be arranged on the positioning part 51 at a predetermined distance interval to position the heavy truck side guard frame 200 through the positioning pins 53. It should be noted that the predetermined distance can be, for example, 0.1mm, 0.11mm, 0.12mm, or 0.13mm, etc., and there is no limit here. When positioning holes are arranged on the pipes of the heavy truck side guard frame 200, the Z-direction installation accuracy of the positioning holes can be based on the positioning surface of the positioning part 51, and the X-direction and Y-direction accuracies of the positioning holes can be based on the positioning pins 53, that is, the position where the positioning holes are arranged on the pipes of the heavy truck side guard frame 200 can correspond to the positioning pins 53 to ensure the position accuracies of the heavy truck side guard frame 200 assembly in the Z-direction, X-direction, and Y-direction.

[0042] In one embodiment, when welding the heavy truck side guard frame 200 is required, the positioning pin 53 can be inserted through the positioning holes of the heavy truck side guard frame 200 to make the heavy truck side guard frame 200 abut against the positioning part 51, position the heavy truck side guard frame 200, ensure the position accuracies of the heavy truck side guard frame 200 in the Z-direction, X-direction, and Y-direction, and reduce the welding deformation amount of the heavy truck side guard frame 200.

[0043] In some embodiments, when there are multiple positioning pins 53 arranged on the positioning surface, the tolerance between two adjacent positioning pins 53 among the multiple positioning pins 53 is less than or equal to ±0.15mm. That is, when there are multiple positioning pins 53 arranged on the positioning surface, the tolerance between two adjacent positioning pins 53 among the multiple positioning pins 53 is less than or equal to ±0.15mm. Correspondingly, among the positioning holes corresponding to the positioning pins 53 arranged on the pipes of the heavy truck side guard frame 200, the tolerance between two adjacent positioning holes is also less than or equal to ±0.15mm. When welding the heavy truck side guard frame 200, the positioning pin 53 can be inserted through the positioning holes of the heavy truck side guard frame 200, and the heavy truck side guard frame 200 can be pressed against the pressing surface of the pressing part 70 and the positioning surface of the positioning part 51 through the pressing part 70, thereby improving the welding tolerance of the heavy truck side guard frame 200 from the original ±2mm to ±0.5mm, making the welding tolerance error of the heavy truck side guard frame 200 smaller, having higher welding accuracy, and at the same time, reducing the welding deformation amount of the heavy truck side guard frame 200.

[0044] Please refer to Figure 3, in some embodiments, the pressing member 70 includes a fixing portion 71, a rotating rod 73, and a pressing portion 75. The fixing portion 71 is disposed on the tabletop 30. The rotating rod 73 is connected to the fixing portion 71, and the pressing portion 75 is connected to the rotating rod 73. The rotating rod 73 can rotate towards the pressing portion 75, so that the pressing portion 75 cooperates with the positioning member 50 to press the heavy truck side guard frame 200 between the pressing surface of the pressing portion 75 and the positioning surface of the positioning member 50.

[0045] Specifically, the fixing portion 71 can be disposed on the tabletop 30 by means of clamping, screwing, or welding, and is located on one side of the positioning member 50. The rotating rod 73 can be rotatably connected to the fixing portion 71 by means of clamping or screwing. The pressing portion 75 can be connected to the rotating rod 73 by means of clamping or screwing.

[0046] In one embodiment, after the heavy truck side guard frame 200 abuts against the positioning member 50, a user can apply a force to the rotating rod 73. At this time, the rotating rod 73 can rotate under the action of the force, so that the pressing portion 75 and the positioning member 50 cooperate with each other under the action of the force to press the heavy truck side guard frame 200 between the pressing surface of the pressing portion 75 and the positioning surface of the positioning member 50.

[0047] Please refer to Figure 2 , in some embodiments, the tabletop 30 includes two cross beams 31 and a plurality of longitudinal beams 33 disposed between the two cross beams 31. Positioning members 50 and pressing members 70 are disposed on both the cross beams 31 and the longitudinal beams 33.

[0048] That is to say, the two cross beams 31 and the plurality of longitudinal beams 33 disposed between the two cross beams 31 can be integrally formed to reduce production costs. The plurality of longitudinal beams 33 can also be disposed between the two cross beams 31 by means of clamping or screwing, so as to facilitate the installation and disassembly of the tabletop 30. The positions of the plurality of longitudinal beams 33 disposed between the two cross beams 31 can correspond to the Z-direction pipes of the heavy truck side guard frame 200. Positioning members 50 and pressing members 70 can be disposed on both the cross beams 31 and the longitudinal beams 33. When welding the heavy truck side guard frame 200, the Z-direction pipes of the heavy truck side guard frame 200 can be pressed and positioned on the longitudinal beams 33 by the positioning members 50 and pressing members 70 disposed on the longitudinal beams 33, and the X-direction pipes of the heavy truck side guard frame 200 can be pressed and positioned on the longitudinal beams 33 by the positioning members 50 and pressing members 70 disposed on the cross beams 31, so that the welding tolerance error of the welded heavy truck side guard frame 200 is small, the welding precision is high, and the welding deformation amount of the heavy truck side guard frame 200 can be reduced.

[0049] Please refer to Figure 1, in some embodiments, the welding jig 100 further includes a flipping assembly 90. The flipping assemblies 90 are respectively disposed at two ends of the support frame 10, and the table 30 is disposed on the flipping assemblies 90. The flipping assemblies 90 can drive the table 30 to flip along the height direction of the support frame 10.

[0050] Specifically, the flipping assemblies 90 can be respectively disposed at two ends of the support frame 10 by welding or screwing. The table 30 can be disposed on the flipping assemblies 90 by welding or screwing. The flipping assemblies 90 can drive the table 30 to flip a preset angle along the height direction of the support frame 10, so that the heavy truck side guard frame 200 can be welded in all directions, and the welding strength of the heavy truck side guard frame 200 is relatively high. The flipping assemblies 90 can be made of metal. That is, when the flipping assemblies 90 are made of metal, for example, they can be made of aluminum alloy, so as to reduce the overall weight of the welding jig 100 while extending the service life of the flipping assemblies 90. It should be noted that the preset angle can be, for example, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85° or 90°, etc., and is not limited herein.

[0051] In one embodiment, when the heavy truck side guard frame 200 is pressed and positioned on the table 30, the flipping assembly 90 can rotate clockwise, driving the table 30 and the heavy truck side guard frame 200 pressed and positioned on the table 30 to flip 90° clockwise along the height direction of the support frame 10, so that the table 30 and the heavy truck side guard frame 200 change from the Figure 1 state to the Figure 4 state, facilitating welding of both the front and back sides of the heavy truck side guard frame 200 simultaneously and shortening the welding time of the heavy truck side guard frame 200.

[0052] In another embodiment, when the heavy truck side guard frame 200 is pressed and positioned on the table 30, the flipping assembly 90 can rotate counterclockwise, driving the table 30 and the heavy truck side guard frame 200 pressed and positioned on the table 30 to flip 90° counterclockwise along the height direction of the support frame 10, so that the table 30 and the heavy truck side guard frame 200 change from the Figure 1 state to the Figure 4 state, facilitating welding of both the front and back sides of the heavy truck side guard frame 200 simultaneously and shortening the welding time of the heavy truck side guard frame 200.

[0053] Please refer to Figure 1 , in some embodiments, the flipping assembly 90 includes a bearing seat 91 and a rotating shaft 93 disposed on the bearing seat 91, and the table 30 is connected to the rotating shaft 93.

[0054] Specifically, the bearing housing 91 can be arranged on the support frame 10 by welding or screwing. The rotating shaft 93 can be rotatably connected to the bearing housing 91 by engaging. The tabletop 30 can be connected to the rotating shaft 93 by welding or screwing.

[0055] In one embodiment, when the heavy truck side guard frame 200 is pressed and positioned on the tabletop 30, the rotating shaft 93 can rotate clockwise, driving the tabletop 30 and the heavy truck side guard frame 200 pressed and positioned on the tabletop 30 to rotate clockwise by 90° in the height direction along the support frame 10, so that the tabletop 30 and the heavy truck side guard frame 200 change from Figure 1 state to Figure 4 state, facilitating welding of both the front and back sides of the heavy truck side guard frame 200 simultaneously.

[0056] In another embodiment, when the heavy truck side guard frame 200 is pressed and positioned on the tabletop 30, the rotating shaft 93 can rotate counterclockwise, driving the tabletop 30 and the heavy truck side guard frame 200 pressed and positioned on the tabletop 30 to rotate counterclockwise by 90° in the height direction along the support frame 10, so that the tabletop 30 and the heavy truck side guard frame 200 change from Figure 1 state to Figure 4 state, facilitating welding of both the front and back sides of the heavy truck side guard frame 200 simultaneously and shortening the welding time of the heavy truck side guard frame 200.

[0057] In some embodiments, a gripping portion 95 is provided at one end of the rotating shaft 93. That is, a gripping portion 95 in the shape of a steering wheel can be provided at one end of the rotating shaft 93. When all-round welding of the heavy truck side guard frame 200 is required, the user can grip the gripping portion 95 tightly and apply a rotational force to the gripping portion 95, causing the gripping portion 95 to transmit the rotational force to the rotating shaft 93. At this time, the rotating shaft 93 can rotate counterclockwise or clockwise, driving the tabletop 30 and the heavy truck side guard frame 200 pressed and positioned on the tabletop 30 to rotate in the height direction along the support frame 10, facilitating welding of both the front and back sides of the heavy truck side guard frame 200 simultaneously and shortening the welding time of the heavy truck side guard frame 200.

[0058] Please refer to Figure 1 or Figure 4 , in some embodiments, the support frame 10 is in the shape of a frustum of a pyramid. That is, since the frustum of a pyramid has the same stability as a triangle, in the embodiments of the present application, by arranging the support frame 10 in the shape of a frustum of a pyramid, the stability of the support frame 10 can be improved, enabling the support frame 10 to more stably and firmly support the tabletop 30 and the heavy truck side guard frame 200 pressed and positioned on the tabletop 30.

[0059] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A welding fixture for welding the side guard frame of a heavy truck, characterized in that, The welding fixture includes: A support frame; A tabletop, which is arranged on the support frame; A plurality of positioning members and pressing members arranged along the circumference of the tabletop, the heavy truck side guard frame abuts against the positioning members, and the pressing members press the heavy truck side guard frame onto the tabletop.

2. The welding jig according to claim 1, characterized in that, The pressing member is arranged on the tabletop and is located on one side of the positioning member. The pressing member and the positioning member cooperate with each other to press the heavy truck side guard frame between the pressing surface of the pressing member and the positioning surface of the positioning member.

3. The welding jig according to claim 1, characterized in that, The positioning member includes a positioning portion and at least one positioning pin. The positioning portion is arranged on the tabletop, the positioning pin is arranged on the positioning portion, and the positioning pin penetrates through the positioning hole of the heavy truck side guard frame to connect the positioning portion with the heavy truck side guard frame.

4. The welding jig according to claim 3, characterized in that, When there are multiple positioning pins arranged on the positioning surface of the positioning member, the tolerance between two adjacent positioning pins among the multiple positioning pins is less than or equal to ±0.15 mm.

5. The welding jig according to claim 1, wherein The pressing member includes a fixing portion, a rotating rod and a pressing portion. The fixing portion is arranged on the tabletop, the rotating rod is connected to the fixing portion, the pressing portion is connected to the rotating rod, and the rotating rod can rotate towards the pressing portion so that the pressing portion and the positioning member cooperate with each other to press the heavy truck side guard frame between the pressing portion and the positioning surface of the positioning member.

6. The welding jig according to claim 1, wherein The tabletop includes two cross beams and a plurality of longitudinal beams arranged between the two cross beams. The positioning members and the pressing members are both arranged on the cross beams and the longitudinal beams.

7. The welding jig according to claim 1, wherein, The welding fixture further includes a flipping assembly, which is respectively arranged at both ends of the support frame. The tabletop is arranged on the flipping assembly, and the flipping assembly can drive the tabletop to flip in the height direction of the support frame.

8. The welding jig according to claim 7, wherein The flipping assembly includes a bearing seat and a rotating shaft arranged on the bearing seat. The tabletop is connected to the rotating shaft.

9. The welding jig according to claim 8, wherein, One end of the rotating shaft is provided with a holding portion.

10. The welding jig according to claim 1, characterized in that, The support frame is in the shape of a frustum of a pyramid.

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