Welding tool for automatic welding of front table of auxiliary frame of mixer truck

Abstract

The utility model discloses a mixer truck auxiliary frame foreground automatic welding tool which comprises a supporting frame, the supporting frame comprises a bottom plate and side plates, the number of the side plates is two, and the top faces of the side plates are provided with V-shaped positioning grooves; the number of the bearing plates is two, and the two bearing plates are fixed in the positioning grooves correspondingly; the first mounting plate is mounted on one of the bearing plates through a position adjusting assembly; the second mounting plate is mounted on the other group of bearing plates through a position adjusting assembly; the first clamping positioning mechanism is mounted on the first mounting plate; the second clamping positioning mechanism is mounted on the second mounting plate; wherein a first reinforcing member is arranged between the two side plates, and a second reinforcing member is arranged between the side plates and the bottom plate. According to the utility model, the welding quality is improved, and the welding defects caused by inaccurate positioning are reduced, such as the problems of welding seam deviation, non-satisfactory welding seam size and the like.

Description

Technical Field

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

[0002] In the concrete mixer truck manufacturing industry, the welding of the subframe front end is a crucial production step, as its welding 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] Based on the above-mentioned technical problems, this utility model provides an automatic welding fixture for the front of the subframe of a mixer truck. Utility Model Content

[0005] The purpose of this invention is to provide an automatic welding fixture for the front of the subframe of a mixer truck, in order to solve the problems existing in the prior art.

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

[0007] A support frame, comprising a base plate and side plates, wherein two sets of side plates are provided, and the two sets of side plates are symmetrically fixedly connected to the top surface of the base plate, and the top surface of the side plates is provided with V-shaped positioning grooves;

[0008] The support plate is provided in two sets, and the two sets of support plates are respectively fixed in the positioning groove;

[0009] The first mounting plate is mounted on one of the bearing plates via a position adjustment component and is positioned corresponding to the bottom surface of the front end of the subframe.

[0010] The second mounting plate is mounted on another set of the support plates via a position adjustment component, and the second mounting plate is positioned corresponding to the front side of the subframe.

[0011] The first snap-fit ​​positioning mechanism is installed on the first mounting plate and snaps into the bottom surface of the front end of the subframe.

[0012] The second snap-fit ​​positioning mechanism is mounted on the second mounting plate and engages with the side limit of the front end of the subframe.

[0013] A first reinforcing member is provided between the two side plates, and a second reinforcing member is provided between the side plates and the bottom plate.

[0014] According to the automatic welding fixture for the front of the subframe of the mixer truck provided by this utility model, the position adjustment component includes an adjusting bolt, the first mounting plate and the second mounting plate are respectively provided with long grooves, the bearing plate is provided with threaded holes, and the adjusting bolt passes through the long grooves and is threadedly connected to the threaded holes.

[0015] According to the automatic welding fixture for the front of the subframe of the mixer truck provided by this utility model, the first snap-fit ​​positioning mechanism includes a snap-fit ​​plate, the snap-fit ​​plate is a U-shaped structure, and several sets of snap-fit ​​plates are provided. Several sets of snap-fit ​​plates are fixed on the first mounting plate and snap-fitted on the bottom edge of the front of the subframe.

[0016] According to the automatic welding fixture for the front of the subframe of the mixer truck provided by this utility model, the second snap-fit ​​positioning mechanism includes a support frame fixedly connected to the second mounting plate. The support frame abuts against the side of the front of the subframe. A positioning plate is installed on the support frame. A biting groove is opened on the positioning plate, and the biting groove snaps into the internal rib plate of the front of the subframe.

[0017] According to the automatic welding fixture for the front of the subframe of the mixer truck provided by this utility model, the first reinforcing member includes a first reinforcing plate, and the first reinforcing plate is provided in several groups, with the several groups of the first reinforcing plate vertically fixed between the two side plates.

[0018] According to the automatic welding fixture for the front of the subframe of the mixer truck provided by this utility model, the second reinforcing member includes a second reinforcing plate, which is a triangular structure and is fixed at the junction of the side plate and the bottom plate.

[0019] The present invention discloses the following technical effects:

[0020] 1) Through the first mounting plate, the second mounting plate, and the corresponding first snap-fit ​​positioning mechanism and the second snap-fit ​​positioning mechanism, the front end of the subframe can be accurately positioned on the welding fixture, ensuring that the position and posture of the front end of the subframe are consistent each time welding, thereby greatly improving the welding quality and reducing welding defects caused by inaccurate positioning, such as weld offset and weld size not meeting requirements, thus ensuring product consistency and interchangeability.

[0021] 2) Stable positioning and fixing methods can effectively reduce the deformation of the subframe front end caused by thermal stress and other factors during the welding process. The rigid support provided by the welding fixture can resist the welding deformation force, resulting in higher dimensional accuracy of the welded subframe front end, reducing subsequent correction work and improving production efficiency.

[0022] 3) The installation of a first reinforcing member between the two side plates and a second reinforcing member between the side plates and the bottom plate significantly enhances the overall structural strength and stability of the support frame. These reinforcing members can withstand various forces and vibrations generated during welding, preventing the support frame from deforming or being damaged due to long-term stress, extending the service life of the welding fixtures, and reducing equipment maintenance costs.

[0023] 4) The stable structure enables the welding fixture to adapt to higher intensity and longer duration welding operations. Even in mass production or complex welding processes with high welding quality requirements, the welding fixture can maintain stable performance, ensuring the smooth progress of welding work.

[0024] 5) The design of the position adjustment component allows for quick adjustment of the positions of the first and second mounting plates according to different specifications of the subframe front end, greatly shortening the tooling clamping time. Operators can more quickly install the subframe front end onto the welding fixture, improving production efficiency and adapting to multi-variety, small-batch production modes.

[0025] 6) By adjusting the position and structure of the first mounting plate, the second mounting plate, and the snap-fit ​​positioning mechanism, this welding fixture can be compatible with the welding requirements of the front end of the subframe of mixer trucks of different models and sizes, enhancing the versatility and flexibility of the fixture and reducing the cost and time investment of enterprises that need to frequently change fixtures due to the production of different products.

[0026] 7) The welding fixture has a reasonable structural design, allowing operators to easily install, position, and disassemble the subframe front end, reducing labor intensity. At the same time, the stable positioning and fixing method reduces the risk of accidental movement of the subframe front end during welding, providing a safer working environment for operators. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the automatic welding fixture for the front of the subframe of the mixer truck according to this utility model. Figure I ;

[0029] Figure 2 This is a schematic diagram of the automatic welding fixture for the front of the subframe of the mixer truck according to this utility model. Figure II .

[0030] The components include: 1. base plate; 2. side plate; 3. bearing plate; 4. first mounting plate; 5. second mounting plate; 6. adjusting bolt; 7. clamping plate; 8. support frame; 9. positioning plate; 10. first reinforcing plate; and 11. second reinforcing plate. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] Reference Figure 1-2 This utility model provides an automatic welding fixture for the front panel of a mixer truck subframe, comprising:

[0034] The support frame includes a base plate 1 and side plates 2. Two sets of side plates 2 are provided and are symmetrically fixedly connected to the top surface of the base plate 1. The top surface of the side plates 2 is provided with a V-shaped positioning groove.

[0035] The support plate 3 is provided in two sets, and the two sets of support plates 3 are fixed in the positioning groove respectively;

[0036] The first mounting plate 4 is mounted on one of the support plates 3 by means of a position adjustment component and is set to correspond to the bottom surface of the front end of the subframe.

[0037] The second mounting plate 5 is mounted on another set of support plates 3 via a position adjustment component. The second mounting plate 5 is set to correspond to the front side of the subframe.

[0038] The first snap-fit ​​positioning mechanism is installed on the first mounting plate 4 and snaps into the bottom surface of the front end of the subframe.

[0039] The second snap-fit ​​positioning mechanism is installed on the second mounting plate 5 and is in a limiting cooperation with the front side of the subframe.

[0040] A first reinforcing member is provided between the two side plates 2, and a second reinforcing member is provided between the side plate 2 and the bottom plate 1.

[0041] In operation, the front panel of the mixer truck subframe is hoisted onto the welding fixture for installation and positioning. The position adjustment component adjusts the position of the first mounting plate 4 on the support plate 3 to correspond to a preset installation position on the bottom surface of the front panel. Then, a first snap-fit ​​positioning mechanism is used to snap-fit ​​and fix the bottom surface of the front panel to the first mounting plate 4, ensuring accurate positioning of the front panel in the bottom direction. Similarly, the position adjustment component adjusts the position of the second mounting plate 5 on another support plate 3 to match a preset installation position on the side of the front panel. Next, a second snap-fit ​​positioning mechanism is used to limit the movement of the second mounting plate 5 against the side of the front panel, further stabilizing its position and preventing displacement or shaking during welding. After the front panel is accurately fixed on the welding fixture, the automatic welding equipment begins welding according to a preset program. Because the front panel is accurately and stably positioned on the welding fixture, welding precision is guaranteed, reducing quality issues such as welding deformation. After welding is completed, the first and second locking and positioning mechanisms are released from fixing the front end of the subframe. The welded front end of the subframe is then removed from the welding fixture by a hoisting device and proceeds to the next process.

[0042] The scheme is further optimized. The position adjustment component includes an adjusting bolt 6. Long slots are respectively opened on the first mounting plate 4 and the second mounting plate 5. Threaded holes are opened on the bearing plate 3. The adjusting bolt 6 passes through the long slots and is threadedly connected to the threaded holes.

[0043] The scheme is further optimized. The first snap-fit ​​positioning mechanism includes a snap-fit ​​plate 7. The snap-fit ​​plate 7 has a U-shaped structure. Several sets of snap-fit ​​plates 7 are provided. Several snap-fit ​​plates 7 are fixed on the first mounting plate 4 respectively. Several snap-fit ​​plates 7 are snap-fitted on the bottom edge of the front end of the subframe.

[0044] The scheme is further optimized. The second snap-fit ​​positioning mechanism includes a support frame 8 fixedly connected to the second mounting plate 5. The support frame 8 abuts against the front side of the subframe. A positioning plate 9 is installed on the support frame 8. The positioning plate 9 has a snap-fit ​​groove, which snaps into the internal rib plate of the front of the subframe.

[0045] The scheme is further optimized. The first reinforcing component includes a first reinforcing plate 10. The first reinforcing plate 10 is provided in several groups, and the several groups of first reinforcing plates 10 are vertically fixed between the two side plates 2.

[0046] Further optimization of the scheme: the second reinforcing component includes a second reinforcing plate 11, which has a triangular structure and is fixed at the junction of the side plate 2 and the bottom plate 1.

[0047] Based on the specifications and dimensions of the front end of the subframe, prepare suitable welding fixtures, check whether each component of the fixture is intact, and confirm that the position adjustment components, snap-fit ​​positioning mechanisms, reinforcing components and other components are undamaged and loose, and ensure that the fixture is in normal and usable condition.

[0048] For the first mounting plate 4, since it is connected to the support plate 3 via a position adjustment assembly, the operator loosens the adjusting bolt 6 according to the required positioning position on the bottom surface of the subframe front end. Because the first mounting plate 4 has a long slot, the adjusting bolt 6 passes through the long slot and is threaded into the threaded hole on the support plate 3. After loosening, the first mounting plate 4 can move along the length of the long slot. The first mounting plate 4 is moved to a suitable position, aligning with the preset positioning point on the bottom surface of the subframe front end, and then the adjusting bolt 6 is tightened to firmly fix the first mounting plate 4 onto the support plate 3.

[0049] Similarly, for the second mounting plate 5, the operator loosens the corresponding adjusting bolt 6 according to the positioning requirements of the front side of the subframe, so that the second mounting plate 5 moves to the appropriate position under the guidance of the long groove. This position must match the preset positioning point on the front side of the subframe. Then, the adjusting bolt 6 is tightened to complete the position fixing of the second mounting plate 5.

[0050] The front end of the subframe of the mixer truck is hoisted above the welding fixture and slowly lowered, so that the bottom edge of the front end of the subframe gradually approaches the first mounting plate 4. Several sets of U-shaped clamping plates 7 are fixed on the first mounting plate 4. As the front end of the subframe descends, its bottom edge is engaged with the clamping plates 7. The clamping plates 7 act as clamps and positions the bottom surface of the front end of the subframe, restricting the movement of the front end of the subframe in the bottom direction.

[0051] Meanwhile, the front end side of the subframe abuts against the support frame 8 on the second mounting plate 5, and the support frame 8 provides support for the front end side of the subframe. A positioning plate 9 is installed on the support frame 8, and the positioning plate 9 has an engagement groove. During the descent of the front end of the subframe, its internal ribs gradually engage with the engagement groove, realizing the limiting fit between the front end side of the subframe and the second mounting plate 5, further fixing the position of the front end of the subframe and preventing it from shifting or shaking during the welding process.

[0052] After the front end of the subframe is accurately and securely positioned on the welding fixture, the automatic welding equipment starts according to the preset program to perform welding operations on the front end of the subframe. During the welding process, because the welding fixture provides stable positioning and support, the front end of the subframe will not undergo significant deformation due to factors such as thermal stress generated during welding, thus ensuring welding quality.

[0053] After welding is completed, first release the engagement between the front end of the subframe and the engagement groove of the positioning plate 9, that is, manually remove the front end of the subframe from the engagement groove to separate it from the support frame 8. Then, lift the front end of the subframe out of the clamping plate 7 and release the bottom engagement. Finally, if it is necessary to adjust the tooling to accommodate welding of other specifications of the front end of the subframe, the adjusting bolt 6 can be loosened again to adjust the position of the first mounting plate 4 and the second mounting plate 5.

[0054] 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.

[0055] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An automatic welding fixture for the front panel of a mixer truck subframe, characterized in that, include: The support frame includes a base plate (1) and side plates (2). The side plates (2) are provided in two sets. The two sets of side plates (2) are symmetrically fixedly connected to the top surface of the base plate (1). The top surface of the side plates (2) is provided with a V-shaped positioning groove. The support plate (3) is provided in two sets, and the two sets of support plates (3) are respectively fixed in the positioning groove; The first mounting plate (4) is mounted on one of the bearing plates (3) by means of a position adjustment component and is disposed corresponding to the bottom surface of the front end of the subframe; The second mounting plate (5) is mounted on another set of the bearing plates (3) by means of a position adjustment component. The second mounting plate (5) is set corresponding to the front side of the subframe. The first snap-fit ​​positioning mechanism is installed on the first mounting plate (4) and snaps into the bottom surface of the front end of the subframe. The second snap-fit ​​positioning mechanism is installed on the second mounting plate (5) and is in a limiting cooperation with the front side of the subframe. A first reinforcing member is provided between the two side plates (2), and a second reinforcing member is provided between the side plate (2) and the bottom plate (1).

2. The automatic welding fixture for the front panel of the subframe of the mixer truck according to claim 1, characterized in that: The position adjustment assembly includes an adjustment bolt (6), the first mounting plate (4) and the second mounting plate (5) are respectively provided with long slots, the bearing plate (3) is provided with threaded holes, and the adjustment bolt (6) passes through the long slots and is threadedly connected to the threaded holes.

3. The automatic welding fixture for the front panel of the subframe of the mixer truck according to claim 1, characterized in that: The first snap-fit ​​positioning mechanism includes a snap-fit ​​plate (7), which is a U-shaped structure. Several sets of snap-fit ​​plates (7) are provided, and several snap-fit ​​plates (7) are respectively fixed on the first mounting plate (4). Several snap-fit ​​plates (7) are respectively snap-fitted to the bottom edge of the front end of the subframe.

4. The automatic welding fixture for the front panel of the subframe of the mixer truck according to claim 1, characterized in that: The second snap-fit ​​positioning mechanism includes a support frame (8) fixedly connected to the second mounting plate (5). The support frame (8) abuts against the front side of the subframe. A positioning plate (9) is installed on the support frame (8). A snap-fit ​​groove is provided on the positioning plate (9). The snap-fit ​​groove snaps into the internal rib plate of the front of the subframe.

5. The automatic welding fixture for the front panel of the subframe of the mixer truck according to claim 1, characterized in that: The first reinforcing member includes a first reinforcing plate (10), and the first reinforcing plate (10) is provided in several groups, and the several groups of the first reinforcing plate (10) are vertically fixed between the two side plates (2).

6. The automatic welding fixture for the front panel of the subframe of the mixer truck according to claim 1, characterized in that: The second reinforcing member includes a second reinforcing plate (11), which is a triangular structure and is fixed at the junction of the side plate (2) and the bottom plate (1).

Images