Background automatic welding tool for auxiliary frame of mixer truck

Abstract

The utility model discloses a background automatic welding tool for an auxiliary frame of a mixer truck. The background automatic welding tool comprises a bottom plate, a supporting plate assembly, a first limiting mechanism and a second limiting mechanism. A supporting frame is installed on the bottom plate, and a V-shaped groove is formed in the top face of the supporting frame. The supporting plate assembly comprises a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are installed on the two groove walls of the V-shaped groove correspondingly, and an operation window is formed in the first supporting plate; the first limiting mechanism comprises a bottom bearing assembly and a first clamping block assembly, the bottom bearing assembly and the first clamping block assembly are both installed on the upper surface of the first supporting plate, and the bottom bearing assembly is located at the bottom of the first supporting plate. According to the utility model, accurate positioning and clamping of the auxiliary frame background of the mixer truck can be realized, thermal deformation, welding deviation and false welding in the welding process are reduced, the welding quality is improved, the mechanical structure is simple, and the welding cost and the equipment cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and in particular to an automatic welding tooling for the back-end welding of the subframe of a mixer truck. Background Technology

[0002] In the concrete mixer truck manufacturing industry, welding at the subframe rear end is a crucial production step, as its quality directly affects the overall performance and service life of the mixer truck. Existing technologies typically include manual welding, robotic automated welding, and laser-tracking automated welding. Manual welding often results in less aesthetically pleasing welds with inconsistent weld quality, and welder costs are relatively high. Furthermore, during manual welding, the welder's skills and experience significantly impact weld quality, making it difficult to guarantee consistency and stability.

[0003] Robotic automated welding requires the use of a positioner, placing extremely high demands on the welding fixtures and employing complex mechanisms such as cylinders and hydraulic cylinders, increasing equipment complexity and maintenance costs. Furthermore, the positioning accuracy of the positioner is crucial to welding quality; inaccurate positioning can easily lead to problems such as weld misalignment and false welds, requiring rework, wasting time and materials, and increasing production costs. In addition, the workpiece undergoes thermal deformation during welding, which is difficult to control, easily resulting in weld deformation problems, further affecting weld quality. While laser tracking automated welding can improve welding accuracy and efficiency, its complex machine structure and extremely high cost make it unaffordable for ordinary processing plants.

[0004] To address this, an automated welding fixture for the subframe of a concrete mixer truck was proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic welding fixture for the back-end of the subframe of a mixer truck, which aims to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides an automatic welding fixture for the back-end of a mixer truck subframe, comprising:

[0007] A base plate, on which a support frame is mounted, and a V-groove is formed on the top surface of the support frame;

[0008] A support plate assembly, comprising a first support plate and a second support plate, wherein the first support plate and the second support plate are respectively mounted on the two groove walls of the V-shaped groove, and an operation window is provided on the first support plate;

[0009] The first limiting mechanism includes a bottom support component and a first locking block component. Both the bottom support component and the first locking block component are mounted on the upper surface of the first support plate, and the bottom support component is located at the bottom of the first support plate.

[0010] The second limiting mechanism includes a top limiting component and a second locking component. Both the top limiting component and the second locking component are mounted on the upper surface of the second support plate, and the top limiting component is located at the top of the second support plate.

[0011] The bottom of the subframe of the mixer truck is engaged with the bottom support component, and the top is engaged with the top limiting component; one side of the subframe of the mixer truck is engaged with the first locking block component, and the other side is engaged with the second locking block component.

[0012] According to the automatic welding fixture for the backstage of the mixer truck subframe provided by this utility model, a plurality of transverse support ribs, a plurality of longitudinal support ribs and a plurality of inclined support ribs are fixedly installed on the upper surface of the second support plate, and the top surfaces of the plurality of transverse support ribs, the plurality of longitudinal support ribs and the plurality of inclined support ribs are in contact with the outer wall of the backstage of the mixer truck subframe.

[0013] According to the automatic welding fixture for the backstage of the mixer truck subframe provided by this utility model, the top limiting component includes a top plate limiting plate. The top limiting plate is installed on the upper surface of the second support plate through a first connecting plate, and the top limiting plate is located at the top of the second support plate. The bottom surface of the top limiting plate is provided with a plurality of first slots, and the top of the backstage of the mixer truck subframe is inserted into the plurality of first slots.

[0014] According to the automatic welding fixture for the backstage of the mixer truck subframe provided by this utility model, the second clamping block assembly includes a plurality of second clamping blocks, all of which are installed on the upper surface of the second support plate, and the inner sidewall of the backstage of the mixer truck subframe contacts the sidewall of the plurality of second clamping blocks.

[0015] According to the automatic welding fixture for the subframe of the mixer truck provided by this utility model, the bottom support assembly includes a central bottom support frame and two lateral bottom support frames. The central bottom support frame and the two lateral bottom support frames are all installed on the upper surface of the first support plate and are all located at the bottom of the first support plate.

[0016] The central bottom support frame is located between the two lateral bottom support frames. The central bottom support frame and the two lateral bottom support frames are provided with several second slots. The bottom of the rear end of the mixer truck subframe is inserted into several of the second slots.

[0017] According to the automatic welding fixture for the backstage of the mixer truck subframe provided by this utility model, the first locking block assembly includes a plurality of first locking blocks, all of which are installed on the upper surface of the first support plate, and the inner sidewall of the backstage of the mixer truck subframe contacts the sidewall of the plurality of first locking blocks.

[0018] According to the automatic welding fixture for the subframe of the mixer truck provided by this utility model, several first reinforcing ribs are fixedly installed between the central bottom support frame and the first support plate, and between the two side bottom support frames and the first support plate.

[0019] According to the automatic welding fixture for the subframe of the mixer truck provided by this utility model, a number of second reinforcing ribs are fixedly installed between the support frame and the base plate.

[0020] The present invention discloses the following technical effects:

[0021] This invention uses a first limiting mechanism and a second limiting structure to precisely position and clamp the back end of the mixer truck subframe, effectively reducing thermal deformation, weld misalignment, and false welding during the welding process, thus improving welding quality. Compared with traditional manual welding and laser-tracking automatic welding, the tooling combined with robot automatic welding in this invention greatly reduces welder and equipment costs, and reduces rework and scrap rates.

[0022] In this utility model, the bottom support component, the top limiting component, the first locking block component, and the second locking block component are locked to the rear end of the mixer truck subframe, making clamping and disassembly more convenient and quick, and further improving production efficiency; the simple mechanical structure avoids the use of complex mechanisms such as cylinders and oil cylinders, reducing the complexity of the equipment and maintenance costs; this utility model has a compact structure and a small footprint, making it suitable for widespread application in ordinary processing plants. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure I ;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure II ;

[0026] Figure 3This is a schematic diagram of the installation of this utility model and the back end of the mixer truck subframe.

[0027] The components include: 1. Base plate; 2. Support frame; 3. V-groove; 4. Subframe back end of mixer truck; 5. First support plate; 6. Second support plate; 7. Transverse support rib; 8. Longitudinal support rib; 9. Inclined support rib; 10. Top plate limiting plate; 11. First slot; 12. Second locking block; 13. Central bottom support frame; 14. Lateral bottom support frame; 15. Second slot; 16. First locking block; 17. First reinforcing rib; 18. Second reinforcing rib. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-3 This utility model provides an automatic welding fixture for the back-end of a mixer truck subframe, comprising:

[0031] A base plate 1, on which a support frame 2 is installed, and a V-groove 3 is provided on the top surface of the support frame 2;

[0032] The support plate assembly includes a first support plate 5 and a second support plate 6. The first support plate 5 and the second support plate 6 are respectively installed on the two groove walls of the V-groove 3. An operation window is provided on the first support plate 5.

[0033] The first limiting mechanism includes a bottom support component and a first locking block component. Both the bottom support component and the first locking block component are installed on the upper surface of the first support plate 5, and the bottom support component is located at the bottom of the first support plate 5.

[0034] The second limiting mechanism includes a top limiting component and a second locking component. Both the top limiting component and the second locking component are mounted on the upper surface of the second support plate 6, with the top limiting component located at the top of the second support plate 6.

[0035] Among them, the bottom of the mixer truck subframe back end 4 is engaged with the bottom support component, and the top is engaged with the top limiting component; one side of the mixer truck subframe back end 4 is engaged with the first locking block component, and the other side is engaged with the second locking block component.

[0036] With this configuration, the present invention uses the first limiting mechanism and the second limiting structure to precisely position and clamp the back end 4 of the mixer truck subframe, effectively reducing thermal deformation, weld deviation, false welding and other problems during the welding process, and improving the welding quality. Compared with traditional manual welding and laser tracking automatic welding, the tooling combined with robot automatic welding of the present invention greatly reduces the cost of welders and equipment, and reduces rework and scrap rates.

[0037] In this utility model, the bottom support component, the top limiting component, the first locking block component, and the second locking block component are connected to the back end of the mixer truck subframe, making clamping and disassembly more convenient and quick, and further improving production efficiency. The simple mechanical structure avoids the use of complex mechanisms such as cylinders and oil cylinders, reducing the complexity of the equipment and maintenance costs. This utility model has a compact structure and a small footprint, making it suitable for widespread application in ordinary processing plants.

[0038] Further optimization of the scheme: Several transverse support ribs 7, several longitudinal support ribs 8 and several inclined support ribs 9 are fixedly installed on the upper surface of the second support plate 6. The top surfaces of the several transverse support ribs 7, several longitudinal support ribs 8 and several inclined support ribs 9 are in contact with the outer wall of the mixer truck subframe backstage 4.

[0039] Lateral support ribs 7 are distributed laterally and make lateral contact with the outer wall of the subframe back end 4 of the mixer truck, providing lateral support force to prevent lateral displacement or deformation of the subframe due to lateral external forces during welding. Longitudinal support ribs 8 are arranged longitudinally and make longitudinal contact with the outer wall of the subframe back end 4 of the mixer truck, bearing longitudinal loads to ensure the longitudinal dimension stability of the subframe back end 4 of the mixer truck during welding and avoid longitudinal warping. Inclined support ribs 9 are set at a certain angle to form multi-angle support with the outer wall of the subframe back end 4 of the mixer truck, enhancing the support adaptability to complex-shaped subframes, dispersing local stress, and preventing stress concentration that leads to deformation. The three types of support ribs work together to form an all-round support system, effectively improving the support stiffness and stability of the subframe back end 4 of the mixer truck and reducing vibration and deformation during welding.

[0040] Further optimization of the scheme: the top limiting component includes a top plate limiting plate 10. The top limiting plate is installed on the upper surface of the second support plate 6 through a first connecting plate, and the top limiting plate is located on the top of the second support plate 6. The bottom surface of the top limiting plate is provided with a number of first slots 11, and the top of the mixer truck subframe back end 4 is inserted into the number of first slots 11.

[0041] The first slot 11 achieves precise positioning. The size of the first slot 11 matches the top structure of the mixer truck subframe back end 4, restricting the movement of the mixer truck subframe back end 4 in the vertical and horizontal directions, preventing the top from tilting or shifting during welding, ensuring that the top position of the mixer truck subframe back end 4 is fixed during welding, ensuring the consistency and stability of welding quality, and reducing welding defects caused by top deformation.

[0042] The scheme is further optimized. The second locking block assembly includes several second locking blocks 12, all of which are installed on the upper surface of the second support plate 6. The inner side wall of the mixer truck subframe back end 4 contacts the side wall of several second locking blocks 12. The second locking block assembly works in conjunction with the top limiting assembly to further enhance the stability of the mixer truck subframe back end 4 during the welding process, ensure the symmetry of both sides of the subframe, and improve the welding accuracy.

[0043] In a further optimized design, the bottom support assembly includes a central bottom support frame 13 and two lateral bottom support frames 14. The central bottom support frame 13 and the two lateral bottom support frames 14 are all mounted on the upper surface of the first support plate 5 and are all located at the bottom of the first support plate 5.

[0044] The central bottom support frame 13 is located between the two side bottom support frames 14. Several second slots 15 are provided on both the central bottom support frame 13 and the two side bottom support frames 14. The bottom of the mixer truck subframe rear end 4 is inserted into several second slots 15.

[0045] The second slot 15 provides bottom support. The shape and size of the second slot 15 are designed according to the bottom structure of the subframe back 4 of the mixer truck, ensuring that the bottom of the subframe is placed stably. The bottom support component provides stable bottom support for the subframe back 4 of the mixer truck, and prevents the bottom of the subframe back 4 from sinking or deforming due to the weight of the subframe back 4 and the thermal stress during the welding process, thus ensuring the verticality and horizontality of the subframe during the welding process.

[0046] Further optimization of the scheme: the first locking block assembly includes several first locking blocks 16, all of which are installed on the upper surface of the first support plate 5. The inner side wall of the mixer truck subframe back end 4 contacts the side wall of the several first locking blocks 16. The first locking block assembly and the bottom support assembly work together to enhance the stability of the mixer truck subframe back end 4 during the welding process, ensure the symmetry of both sides of the subframe, and improve the welding accuracy.

[0047] In a further optimized design, several first reinforcing ribs 17 are fixedly installed between the central bottom support frame 13 and the first support plate 5, and between the two lateral bottom support frames 14 and the first support plate 5. The first reinforcing ribs 17 increase the connection strength and rigidity between the bottom support component and the first support plate 5, disperse the load borne by the bottom support component, reduce stress concentration, and prevent the bottom support component from deforming or being damaged due to excessive load.

[0048] Further optimization of the design involves fixing several second reinforcing ribs 18 between the support frame 2 and the base plate 1. The second reinforcing ribs 18 enhance the connection strength between the support frame 2 and the base plate 1, improve the rigidity and stability of the entire fixture, withstand vibration and impact during the welding process, prevent fixture deformation, provide precise positioning and stable support for the mixer truck subframe back end 4, and ensure welding quality.

[0049] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic welding fixture for the subframe of a concrete mixer truck, characterized in that, include: A base plate (1) is provided with a support frame (2) and a V-groove (3) is provided on the top surface of the support frame (2). The support plate assembly includes a first support plate (5) and a second support plate (6). The first support plate (5) and the second support plate (6) are respectively installed on the two groove walls of the V-groove (3). An operation window is provided on the first support plate (5). The first limiting mechanism includes a bottom support component and a first locking component. The bottom support component and the first locking component are both installed on the upper surface of the first support plate (5). The bottom support component is located at the bottom of the first support plate (5). The second limiting mechanism includes a top limiting component and a second locking component. Both the top limiting component and the second locking component are mounted on the upper surface of the second support plate (6). The top limiting component is located at the top of the second support plate (6). The bottom of the mixer truck subframe back end (4) is engaged with the bottom support component, and the top is engaged with the top limiting component; one side of the mixer truck subframe back end (4) is engaged with the first locking block component, and the other side is engaged with the second locking block component.

2. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: Several transverse support ribs (7), several longitudinal support ribs (8) and several inclined support ribs (9) are fixedly installed on the upper surface of the second support plate (6). The top surfaces of the several transverse support ribs (7), several longitudinal support ribs (8) and several inclined support ribs (9) are in contact with the outer wall of the mixer truck subframe back end (4).

3. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: The top limiting assembly includes a top plate limiting plate (10), which is mounted on the upper surface of the second support plate (6) via a first connecting plate and is located on the top of the second support plate (6). The bottom surface of the top plate limiting plate (10) is provided with a plurality of first slots (11), and the top of the mixer truck subframe back end (4) is inserted into the plurality of first slots (11).

4. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: The second card block assembly includes a plurality of second card blocks (12), all of which are mounted on the upper surface of the second support plate (6), and the inner side wall of the mixer truck subframe back end (4) contacts the side wall of the plurality of second card blocks (12).

5. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: The bottom support assembly includes a central bottom support frame (13) and two lateral bottom support frames (14), both of which are mounted on the upper surface of the first support plate (5) and are located at the bottom of the first support plate (5). The central bottom support frame (13) is located between the two side bottom support frames (14). The central bottom support frame (13) and the two side bottom support frames (14) are provided with several second slots (15). The bottom of the mixer truck subframe back end (4) is inserted into several second slots (15).

6. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: The first card block assembly includes a plurality of first card blocks (16), all of which are mounted on the upper surface of the first support plate (5), and the inner side wall of the mixer truck subframe back end (4) is in contact with the side wall of the plurality of first card blocks (16).

7. The automatic welding fixture for the subframe of the mixer truck according to claim 5, characterized in that: Several first reinforcing ribs (17) are fixedly installed between the central bottom support frame (13) and the first support plate (5), and between the two lateral bottom support frames (14) and the first support plate (5).

8. The automatic welding fixture for the subframe of the mixer truck according to claim 1, characterized in that: Several second reinforcing ribs (18) are fixedly installed between the support frame (2) and the base plate (1).

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