Rear fender support welding tool

Abstract

The utility model discloses a welding tool for a rear fender bracket. The welding tool is characterized by comprising a bottom plate, a first positioning block, a second positioning block, two first positioning pins, a second positioning pin, two limiting pins, a strip-shaped pressing plate, a vertical screw rod and a nut, the first positioning block and the second positioning block are fixed on the bottom plate; the two first positioning pins are used for being inserted into the two first connecting holes of the first supporting plate respectively. The second positioning pin is used for being inserted into a second connecting hole of a second supporting plate, and the two limiting pins are used for limiting the two side edges of the second supporting plate correspondingly. The vertical screw rod penetrates through the strip-shaped pressing plate and then is matched with a nut, and the strip-shaped pressing plate is used for pressing the second supporting plate. According to the welding fixture, the first support plate and the second support plate can be positioned and clamped when the rear fender bracket is welded, the accuracy of the relative position and direction is ensured, the welding accuracy and quality can be ensured, and the welding fixture has the advantages of simplicity in clamping, convenience in unloading and the like.

Description

Technical Field

[0001] The utility model relates to a welding tooling for a rear mudguard bracket. Background Art

[0002] Reference can be made to Figure 1-2 , there is now a rear mudguard bracket, which belongs to motorcycle accessories. The rear mudguard bracket is welded into one body by a first support plate N and a second support plate M. When welding, one end of the second support plate M is pressed against the first support plate N, and at the same time, it is required that the center lines of the first support plate N and the second support plate M are in the same direction to ensure the relative positions between the holes on the first support plate N and the second support plate M are accurate, so as to meet the assembly accuracy requirements.

[0003] Therefore, when welding the rear mudguard bracket, the first support plate N and the second support plate M need to be positioned and clamped, and it is required to ensure the accuracy of the relative position and direction. Therefore, a special tooling needs to be designed. Content of the Utility Model

[0004] The utility model provides a welding tooling for a rear mudguard bracket, which is used to solve the technical problem of how to position and clamp the first support plate and the second support plate when welding the rear mudguard bracket.

[0005] To achieve the above object, the solution of the utility model is: a welding tooling for a rear mudguard bracket, characterized in that: it includes a bottom plate, a first positioning block, a second positioning block, two first positioning pins, a second positioning pin, two limit pins, a strip-shaped pressing plate, a vertical screw rod and a nut; the first positioning block and the second positioning block are both fixed on the bottom plate; the two first positioning pins are fixed on the upper surface of the first positioning block and are respectively used to insert into two first connection holes of the first support plate; the second positioning pin, the two limit pins and the vertical screw rod are all fixed on the upper surface of the second positioning block; the second positioning pin is used to insert into the second connection hole of the second support plate, and the two limit pins are respectively used for limiting the two side edges of the second support plate; the vertical screw rod is located between the two limit pins; a middle through hole is provided in the middle of the strip-shaped pressing plate; the vertical screw rod passes through the middle through hole and is matched with the nut, and the strip-shaped pressing plate is used to press the second support plate.

[0006] Further, two side through holes are provided at both ends of the strip-shaped pressing plate for respectively cooperating with the two limit pins.

[0007] Further, a strip-shaped hole is provided on the bottom plate.

[0008] Advantages of the Utility Model:

[0009] First, the utility model can be used to position and clamp the second support plate and the first support plate during the welding of the rear mudguard support, ensuring the accuracy of the relative position and direction, making the center line directions of the first support plate and the second support plate consistent, and at the same time, the relative positions between the holes on the first support plate and the second support plate meet the precise requirements, thereby ensuring the welding accuracy and quality.

[0010] Second, the utility model is simple to operate during the positioning and clamping of the rear mudguard support. Both positioning and pressing are very convenient, meeting the technological requirements, with safe operation and improved welding work efficiency.

[0011] Third, after the rear mudguard support is welded, the utility model can release and unload the welded workpiece, easily take out the workpiece, with very convenient unloading, less time consumption, and safe operation.

[0012] Fourth, the technical solution of the utility model is different from that of conventional or existing welding jigs. Its structural design is ingenious, and it has the advantages of simple structure, time-saving and labor-saving, very practical, low cost, simple loading and unloading, and high work efficiency. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the rear mudguard support.

[0014] Figure 2-3 is a structural schematic diagram of a welding jig for a rear mudguard support in Embodiment 1.

[0015] Figure 4-5 is a working state diagram of the welding jig for a rear mudguard support in Embodiment 1 when the first support plate is placed on the first positioning block and is positioned and supported.

[0016] Figure 6-7 is a working state diagram of the welding jig for a rear mudguard support in Embodiment 1 when the second support plate is placed on the first positioning block and is positioned and supported.

[0017] Figure 8 is a working state diagram of the welding jig for a rear mudguard support in Embodiment 1 when the strip-shaped pressing plate is placed above the second support plate, and the two side perforations of the strip-shaped pressing plate are respectively fitted with two limit pins, and the vertical screw rod passes through one of the perforations.

[0018] Figure 9-10 is a working state diagram of the welding jig for a rear mudguard support in Embodiment 1 when a nut is installed on the vertical screw rod and the second support plate is pressed by rotating the nut downward, and at the same time, one end of the second support plate presses the first support plate to complete the positioning and clamping.

[0019] Figure 11It is a working state diagram of a rear mudguard bracket welding tooling in the second embodiment when placing the strip-shaped pressing plate above the second support plate and the vertical screw rod passes through its perforation.

[0020] Figure 12 It is a working state diagram of a rear mudguard bracket welding tooling in the second embodiment when installing a nut on the vertical screw rod and pressing the second support plate by rotating the nut downward. At the same time, one end of the second support plate presses the first support plate to complete positioning and clamping. Specific implementation mode

[0021] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0022] Embodiment 1: Refer to Figure 2-3 , a rear mudguard bracket welding tooling, which includes a bottom plate 1, a first positioning block 2, a second positioning block 3, two first positioning pins 4, a second positioning pin 5, two limit pins 6, a strip-shaped pressing plate 7, a vertical screw rod 8 and a nut 9.

[0023] Among them, the first positioning block 2 and the second positioning block 3 are both fixed on the bottom plate 1; the two first positioning pins 4 are fixed on the upper surface of the first positioning block 2 and are respectively used to insert into two first connection holes N-1 of the first support plate N (refer to Figure 4-5 ).

[0024] Specifically, the two first positioning pins 4 are symmetrically distributed front and back at intervals.

[0025] Among them, the second positioning pin 5, the two limit pins 6 and the vertical screw rod 8 are all fixed on the upper surface of the second positioning block 3; the second positioning pin 5 is used to insert into the second connection hole M-1 of the second support plate M, and the two limit pins 6 are respectively used for limiting the two side edges M-2 of the second support plate M (refer to Figure 6-7 ).

[0026] Specifically, the two limit pins 6 are symmetrically distributed front and back at intervals.

[0027] Among them, the vertical screw rod 8 is located between the two limit pins 6; a middle perforation 7-1 is provided in the middle of the strip-shaped pressing plate 7 (refer to Figure 8 ); the vertical screw rod 8 passes through the middle perforation 7-1 and is matched with the nut 9, and the strip-shaped pressing plate 7 is used to press the second support plate M (refer to Figure 8-10 )

[0028] Refer to Figure 8-10 , when clamping, the vertical screw rod 8 will first pass through the trapezoidal hole M-3 of the second support plate M, then pass through the middle perforation 7-1 of the strip-shaped pressing plate 7 and be matched with the nut 9. By rotating the nut 9, the two end parts of the strip-shaped pressing plate 7 respectively press the two side edges M-2 of the second support plate M.

[0029] Further, two side through holes 7-1 for respectively cooperating with the two limit pins 6 are provided at both ends of the strip-shaped pressing plate 7 (see Figure 8 ).

[0030] Further, a strip-shaped hole 1-1 is provided on the bottom plate 1 (see Figure 2-3 ). This tooling can be detachably fixed on the workbench through the strip-shaped hole 1-1 of the bottom plate 1.

[0031] The operation steps of the tooling of the present utility model during clamping can be as follows:

[0032] First, place the first support plate N on the first positioning block 2, and insert the second positioning pin 5 into the second connection hole M-1 of the second support plate M to complete the horizontal support and positioning of the first support plate N (see Figure 4-5 );

[0033] Then, place the second support plate M on the second positioning block 3. One end of the second support plate M is pressed against the first support plate N, and the two first positioning pins 4 are respectively inserted into the two first connection holes N-1 of the first support plate N. The second support plate M is located between the two limit pins 6, so that the two side edges M-2 of the second support plate M are limited in the front and back directions by the two limit pins 6 respectively, to complete the horizontal support and positioning of the second support plate M. At this time, the center lines of the first support plate N and the second support plate M are in the same direction, and the relative positions between the holes on the first support plate N and the second support plate M are kept precise (see Figure 6-7 );

[0034] Finally, place the strip-shaped pressing plate 7 above the second support plate M, and make the two side through holes 7-1 of the strip-shaped pressing plate 7 cooperate with the two limit pins 6 respectively, and the vertical screw rod 8 passes through the middle through hole 7-1 (see Figure 8 ); then install a nut 9 on the vertical screw rod 8 and press the second support plate M by rotating the nut 9 downward. At the same time, one end of the second support plate M will also press the first support plate N to complete the positioning and clamping. At this time, the second support plate M and the first support plate N are simultaneously fixed and constrained and the relative positions are accurately positioned (see Figure 9-10 ).

[0035] In addition, after the above positioning and clamping are completed, welding work can be carried out on the contact part (see Figure 1 the welding part in the figure) between the second support plate M and the first support plate N; and after the welding is completed, the following unclamping operation can be carried out: first, take it out upward by rotating the nut 9, then take it away from the strip-shaped pressing plate 7, and then the welded workpiece (product) can be directly removed from the tooling seat 1, so that rapid unclamping can be realized.

[0036] Therefore, the tooling of the utility model can realize the positioning and clamping between the second support plate M and the first support plate N during the welding of the rear mudguard bracket, ensure the accuracy of the relative position and direction, make the center line directions of the first support plate N and the second support plate M consistent, and at the same time, the relative positions between the holes on the first support plate and the second support plate meet the precise requirements, thereby ensuring the welding accuracy and quality.

[0037] In addition, when clamping the rear mudguard bracket, the operation is simple, the positioning and pressing are both convenient, which can meet the technological requirements, the operation is safe, and the welding work efficiency can be improved.

[0038] In addition, after the welding is completed, the welded workpiece can be loosened and unloaded, the workpiece can be easily taken out, the unloading is very convenient, the time used is less, and the operation is also safe.

[0039] Embodiment 2: This embodiment is basically the same as Embodiment 1, the difference being that the structure of the strip-shaped pressing plate 7 is different.

[0040] See Figure 11-12 , in this embodiment, only a middle through hole 7-1 is provided on the strip-shaped pressing plate 7, and two side through holes 7-1 are not provided at both ends of the strip-shaped pressing plate 7.

[0041] See Figure 11 , when pressing, the strip-shaped pressing plate 7 is placed above the second support plate M, and the vertical screw 8 passes through the middle through hole 7-1 (see Figure 11 ); then a nut 9 is installed on the vertical screw 8 and the second support plate M is pressed by rotating the nut 9 downward. At the same time, one end of the second support plate M will also press the first support plate N to complete the positioning and clamping. At this time, the second support plate M and the first support plate N are simultaneously fixed and constrained and the relative position is accurately positioned (see Figure 12 ).

[0042] In this Embodiment 2 and Embodiment 1, the second support plate M and the first support plate N can also be pressed by the strip-shaped pressing plate 7.

[0043] By comparison, in Embodiment 2 compared with Embodiment 1, the solution adopted in the above Embodiment 1 has better effects. Since the two side through holes 7-1 at both ends of the strip-shaped pressing plate 7 in Embodiment 1 are positioned and constrained by two limit pins 6, the second support plate M will not rotate and loosen after the strip-shaped pressing plate 7 is pressed, thereby improving the stability after pressing and being more reliable.

[0044] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. A welding tooling for rear mudguard brackets, characterized in that: It includes a bottom plate (1), a first positioning block (2), a second positioning block (3), two first positioning pins (4), a second positioning pin (5), two limit pins (6), a strip-shaped pressing plate (7), a vertical screw rod (8) and a nut (9); The first positioning block (2) and the second positioning block (3) are both fixed on the bottom plate (1); The two first positioning pins (4) are fixed on the upper surface of the first positioning block (2) and are respectively used to be inserted into two first connection holes (N-1) of a first support plate (N); The second positioning pin (5), the two limit pins (6) and the vertical screw rod (8) are all fixed on the upper surface of the second positioning block (3); The second positioning pin (5) is used to be inserted into a second connection hole (M-1) of a second support plate (M), and the two limit pins (6) are respectively used for limiting the two side edges (M-2) of the second support plate (M); The vertical screw rod (8) is located between the two limit pins (6); A middle through hole is provided in the middle of the strip-shaped pressing plate (7); The vertical screw rod (8) passes through the middle through hole and is matched with the nut (9), and the strip-shaped pressing plate (7) is used to press the second support plate (M).

2. The welding tooling for a rear mudguard bracket according to claim 1, wherein: Two side through holes for respectively cooperating with the two limit pins (6) are provided at both ends of the strip-shaped pressing plate (7).

3. The welding tooling for the rear mudguard bracket according to claim 1, characterized in that: A strip-shaped hole (1-1) is provided on the bottom plate (1).

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