Engine bottom guard plate welding tool

Abstract

The utility model discloses an engine bottom guard plate welding tool which comprises an outer frame, the top of the outer frame is rotatably connected with an inner frame, a plurality of lifting columns are slidably connected between an upper cross beam and a lower cross beam of the inner frame, sliding blocks are slidably connected in lifting grooves of the lifting columns, and the two sides of the lifting columns are rotatably connected with the two ends of clamping plate bases corresponding to the sliding blocks. The protective plate is clamped between the clamping plate seat and the clamping plate; the device can clamp each plate of a guard plate to be welded, the transverse distance and the vertical distance between adjacent plates are adjusted by sliding the lifting columns and the sliding blocks, the plate clamping bases in the device can be turned over to adjust the inclination angles of the plates, and therefore the butt joint requirements of various guard plate welding edges are met, and after the guard plate is preliminarily welded and formed, the inner frame can be integrally rotated to adjust the angle, so that the welding efficiency is improved. And a welder can conveniently weld the remaining welding edges.

Description

Technical Field

[0001] This utility model relates to the technical field of engine parts production equipment, specifically to a welding fixture for engine underbody protection plates. Background Technology

[0002] With the booming development of the new energy vehicle industry, range-extended electric vehicles (REEVs) have become the choice of more and more people. These vehicles have both a large-capacity battery and an engine, allowing them to operate in pure electric mode and charge the battery at the engine's rated power, greatly improving engine efficiency and reducing emissions. Due to the vehicle's layout, the battery and engine of most REEVs are exposed under the vehicle, requiring additional underbody protection. Because the protection area is large and the structure is complex, these underbody protection plates often need to be welded from multiple plates. Manual assembly and welding is very time-consuming and labor-intensive, and it is difficult to guarantee welding quality. A new type of tooling is needed to solve these problems. Utility Model Content

[0003] To solve the above problems, this utility model proposes a welding fixture for an engine underbody protection plate, including an outer frame, an inner frame rotatably connected to the top of the outer frame, several lifting columns slidably connected between the upper and lower crossbeams of the inner frame, sliders slidably connected in the lifting grooves of the lifting columns, and two sides corresponding to the sliders rotatably connected to the two ends of the clamping plate seat. The clamping plate seat is connected to the clamping plate by fastening bolts, and the protection plate is clamped between the clamping plate seat and the clamping plate.

[0004] Furthermore, universal wheels are provided on the bottom plates on both sides of the outer frame, and hinge seats are provided in the middle of the two horizontal plates of the outer frame. The upper and lower horizontal beams on the same side of the inner frame are connected by support columns. The hinge seats are hinged to the rotating shaft on the support columns, and the screw holes on the end face of the rotating shaft are threaded to the flip bolts.

[0005] Furthermore, the top and bottom surfaces of the lifting column are each equipped with a vertical shaft. The upper and lower vertical shafts are slidably connected to the transverse through slots opened on the upper and lower crossbeams of the inner frame, respectively. After passing through the transverse through slots, the vertical shafts are threadedly connected to the horizontal adjustment nuts.

[0006] Furthermore, the slider has horizontal shafts on both sides, which are slidably connected to the vertical through slots on both sides of the lifting column. After passing through the vertical through slots, the horizontal shafts are threadedly connected to the vertical adjustment nuts.

[0007] Furthermore, a rotating rod is provided at the center of the upright plates on both sides of the clamping plate seat. The rotating rod is rotatably connected to the slider. One rotating rod passes through the slider and is connected to a handwheel. The rotating rod on this side is provided with a limit plate. The other rotating rod passes through the slider and is threadedly connected to an inclination nut.

[0008] Furthermore, the protrusions at both ends of the clamping plate are slidably connected to the vertical grooves opened on the top surface of the upright plates on both sides of the clamping plate seat, and the fastening bolts pass through the protrusions and are threadedly connected to the clamping plate seat to fasten the nuts.

[0009] The beneficial effects of this utility model are as follows: This utility model can clamp each plate of the protective plate to be welded by multiple sets of clamping plate assemblies, and adjust the horizontal and vertical distance between each plate by sliding lifting column and slider. The clamping plate seat in the device can be flipped to adjust the tilt angle of each plate, thereby meeting the welding requirements of various protective plate welding edges. After the welding edge of one side of the adjacent plate is initially welded and fixed, the inner frame can be rotated as a whole to adjust the angle, which makes it convenient for the welder to weld the remaining welding edge. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of the present utility model;

[0011] Figure 2 This is a top view of the structure of this utility model.

[0012] The reference numerals in the attached drawings are explained as follows: 1. Outer frame; 101. Base plate; 102. Caster wheel; 103. Horizontal plate; 104. Hinge seat; 2. Inner frame; 201. Support column; 202. Rotating shaft; 203. Horizontal through groove; 3. Lifting column; 301. Lifting groove; 302. Vertical shaft; 303. Vertical through groove; 4. Sliding block; 401. Horizontal shaft; 5. Clamping plate seat; 501. Rotating rod; 502. Limiting plate; 503. Vertical groove; 6. Fastening bolt; 7. Clamping plate; 701. Protrusion; 8. Guard plate; 9. Flip bolt; 10. Horizontal adjustment nut; 11. Vertical adjustment nut; 12. Handwheel; 13. Inclination nut. Detailed Implementation

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] like Figure 1 and Figure 2 As shown, a welding fixture for an engine underbody protection plate includes an outer frame 1, an inner frame 2 inside the outer frame 1, casters 102 on the bottom plates 101 on both sides of the outer frame 1, and a hinge seat 104 in the middle of the two horizontal plates 103 of the outer frame 1. The upper and lower horizontal beams on the same side of the inner frame 2 are connected by a support column 201. The hinge seat 104 is hinged to a rotating shaft 202 on the support column 201, and a turning bolt 9 is threaded through a screw hole on the end face of the rotating shaft 202. Two lifting columns 3 are slidably connected between the upper and lower horizontal beams on the same side of the inner frame 2. The two lifting columns 3 are respectively located on both sides of the support column 201. A vertical shaft 302 is provided at the center of the top and bottom surfaces of the lifting columns 3. The upper and lower vertical shafts 302 are slidably connected to the transverse through slots 203 opened in the upper and lower horizontal beams of the inner frame 2, respectively. After passing through the transverse through slots 203, the vertical shafts 302 are threadedly connected to a horizontal adjusting nut 10.

[0017] In this embodiment, a slider 4 is slidably connected within the lifting groove 301 of the lifting column 3. A horizontal shaft 401 is provided on both sides of the slider 4, and the horizontal shaft 401 is slidably connected to the vertical through grooves 303 on both sides of the lifting column 3. The horizontal shaft 401 passes through the vertical through grooves 303 and is threadedly connected to a vertical adjustment nut 11. A clamping plate seat 5 is rotatably connected to the slider 4 on both sides. A rotating rod 501 is provided at the center of the upright plates on both sides of the clamping plate seat 5. The rotating rod 501 is rotatably connected to the slider 4. One rotating rod 501 passes through the slider 4 and is connected to a handwheel 12. A limiting disc 502 is provided on the body of this rotating rod 501. The other rotating rod 501 passes through the slider 4 and is threadedly connected to an inclination nut 13. The protrusions 701 at both ends of the clamping plate 7 are slidably connected to the vertical grooves 503 opened on the top surface of the upright plates on both sides of the clamping plate seat 5. A fastening bolt 6 passes through the protrusions 701 and is threadedly connected to the clamping plate seat 5 and a fastening nut. When the fastening nut is tightened, the guard plate 8 is clamped between the clamping plate seat 5 and the clamping plate 7.

[0018] The working principle of this utility model is as follows:

[0019] Place one of the plates from the guard plate 8 onto the clamping plate seat 5. Insert both ends of the clamping plate 7 into the vertical grooves 503, insert the fastening bolts 6, and tighten the fastening nuts to clamp the plate between the clamping plate 7 and the clamping plate seat 5. Clamp the adjacent plates into the other clamping plate seat 5 using the same method. Slide the lifting column 3 to adjust the lateral distance between the two plates, then tighten the lateral adjustment nut 10; slide the slider 4 to adjust the vertical distance between the two plates, then tighten the vertical adjustment nut 11; turn the handwheel 12 to adjust the tilt angle between the two plates, then tighten the tilt angle nut 13. The above adjustment process is selected according to actual needs, with the goal of making the welded edges of the two plates contact each other, followed by welding and fixing. If welding the back welded edge is required, loosen the flipping bolt 9, flip the inner frame 2, then tighten the flipping bolt 9 again to weld the back welded edge.

[0020] This utility model can quickly clamp adjacent plates of the guard plate 8 and adjust the horizontal and vertical distances and tilt angles between the plates, thereby meeting the docking requirements of various guard plates 8. The device can rotate the inner frame 2 as a whole, which makes it easy for welders to select the welding angle. It has the characteristics of being convenient, efficient and highly applicable.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A welding fixture for an engine underbody protection plate, comprising an outer frame (1), characterized in that: The top of the outer frame (1) is rotatably connected to the inner frame (2). Several lifting columns (3) are slidably connected between the upper and lower crossbeams of the inner frame (2). The lifting column (3) is slidably connected to the slider (4) in the lifting groove (301). The two sides of the slider (4) are rotatably connected to the two ends of the clamping plate seat (5). The clamping plate seat (5) is connected to the clamping plate (7) by fastening bolts (6). The guard plate (8) is clamped between the clamping plate seat (5) and the clamping plate (7).

2. The welding fixture for an engine underbody protection plate according to claim 1, characterized in that: The outer frame (1) has casters (102) on the bottom plates (101) on both sides. The two horizontal plates (103) of the outer frame (1) have hinges (104) in the middle. The upper and lower horizontal beams on the same side of the inner frame (2) are connected by a support column (201). The hinge (104) is hinged to the pivot (202) on the support column (201). The end face of the pivot (202) is threaded with a flip bolt (9).

3. The welding fixture for an engine underbody protection plate according to claim 1, characterized in that: The lifting column (3) has a vertical shaft (302) at the center of its top and bottom surfaces. The upper and lower vertical shafts (302) are slidably connected to the transverse through slots (203) opened on the upper and lower crossbeams of the inner frame (2). The vertical shaft (302) passes through the transverse through slots (203) and is then threaded to the horizontal adjustment nut (10).

4. The welding fixture for an engine underbody protection plate according to claim 1, characterized in that: The slider (4) has a horizontal shaft (401) on both sides. The horizontal shaft (401) is slidably connected to the vertical through groove (303) on both sides of the lifting column (3). After the horizontal shaft (401) passes through the vertical through groove (303), it is threadedly connected to the vertical adjustment nut (11).

5. The welding fixture for an engine underbody protection plate according to claim 1, characterized in that: The clamp seat (5) has a rotating rod (501) at the center of the upright plate on both sides. The rotating rod (501) is rotatably connected to the slider (4). One side of the rotating rod (501) passes through the slider (4) and is connected to the handwheel (12). The rotating rod (501) on this side is provided with a limiting plate (502). The other side of the rotating rod (501) passes through the slider (4) and is threaded to the tilt nut (13).

6. The welding fixture for an engine underbody protection plate according to claim 1, characterized in that: The protrusions (701) at both ends of the clamping plate (7) are slidably connected to the vertical grooves (503) on the top surface of the upright plates on both sides of the clamping plate seat (5). The fastening bolts (6) pass through the protrusions (701) and the clamping plate seat (5) and are then threaded to fasten the nuts.

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