Welding tool for assembling half frame and vertical pipe of motorcycle

Abstract

The utility model relates to the technical field of motorcycles, in particular to a welding tool for assembling a half frame and a vertical pipe of a motorcycle, which comprises a vertical pipe positioning presser and a tail positioning presser, the vertical pipe positioning presser is used for positioning and pressing the vertical pipe, the tail positioning presser is used for positioning and pressing the tail section of the half frame far away from the vertical pipe, and the tail positioning presser is used for positioning and pressing the tail section of the half frame far away from the vertical pipe. The middle positioner comprises a left positioning assembly and a right positioning assembly, the left positioning assembly and the right positioning assembly are used for positioning the left half frame and the right half frame respectively, each of the left positioning assembly and the right positioning assembly comprises a height positioning column and a horizontal limiting column, and the height positioning column is provided with a height positioning pin; the height positioning pin is used for being inserted into a design hole of a half frame, a U-shaped limiting groove is formed in one horizontal limiting column, an opening of the U-shaped limiting groove faces upwards, and a limiting protrusion is arranged on the other horizontal limiting column. According to the scheme, the assembling and welding requirements of the half frame and the vertical pipe assembly are met.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, and particularly relates to a welding tool for assembling a motorcycle semi-frame and a riser pipe. Background Art

[0002] The existing motorcycle frames, such as Figure 1 the frame formed by welding multiple metal pipes as shown, in traditional forming, the frame is mostly divided into a front half part and a rear half part. For example, as Figure 2 shown, the front head pipe of the front half part is welded to the left and right main pipes and the left and right support pipes to form the front half frame, then the tail light connecting pipe is welded to the left and right upper tail pipes and the left and right lower tail pipes to form the rear half frame, and then the main pipe of the front half frame is welded to the upper tail pipe of the rear half frame, and the support pipe of the front half frame is welded to the lower tail pipe of the rear half frame. For example, a combined fixture of a frame right front half body tooling with the patent publication number CN207656162U. However, due to different stress releases of the front and rear half frames and different deformation amounts after welding, it is very difficult to align the left and right splicing of the front and rear half frames during welding. It is often necessary to correct the dimensions before welding or to splice and shape the front and rear half frames for a long time. After the dimensions can be docked, welding is carried out. Such a method makes the frame production time-consuming too long, and it is very difficult to correct the shape after welding the metal steel pipes, which is not conducive to production.

[0003] The inventor attempts to break the assembly method of front and rear splicing and change it to a left and right splicing assembly method, that is, the frame is divided into semi-frames on the left and right sides, a riser pipe assembly at the front end, a tail light assembly at the rear end, and various connecting cross pipes spanning the left and right semi-frames in the middle (combining Figure 3 ). During production, the semi-frame, the riser pipe assembly, and the tail light assembly are each first welded into an independent whole, and then the left and right semi-frames are assembled with the riser pipe assembly, the rear tail light assembly, and each connecting cross pipe and welded together. However, there is currently a lack of a welding tool (also called a pre-welding positioning tool) for assembling the semi-frame and the riser pipe assembly. And the current existing tool design ideas, such as a welding fixture for a scooter motorcycle frame with the patent publication number CN211680713U and a motorcycle frame positioning device with the patent number CN2726809Y, are all for positioning the whole vehicle frame, aiming to facilitate welding small parts on the basically formed frame or facilitating the detection of the frame. Therefore, they cannot meet the assembly and welding requirements of the semi-frame and the riser pipe assembly. Content of the Utility Model

[0004] The utility model aims to provide a welding tool for assembling a motorcycle semi-frame and a riser pipe to meet the assembly and welding requirements of the semi-frame and the riser pipe assembly.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A welding tool for assembling a motorcycle semi-frame and a riser pipe, comprising a riser pipe positioning and clamping device and a tail positioning and clamping device. The riser pipe positioning and clamping device is used for positioning and clamping the riser pipe, and the tail positioning and clamping device is used for positioning and clamping a section of the tail of the semi-frame away from the riser pipe. It also includes a middle positioner, which includes a left positioning component and a right positioning component. The left positioning component and the right positioning component are used for positioning the left and right semi-frames respectively. Both the left positioning component and the right positioning component include a height positioning post and a horizontal limiting post. The height positioning post is provided with a height positioning pin, and the height positioning pin is used for inserting into the designed hole of the semi-frame. A U-shaped limiting groove is provided on one of the horizontal limiting posts, and the opening of the U-shaped limiting groove faces upwards. A limiting protrusion is provided on the other horizontal limiting post.

[0007] The principle and advantages of this solution are as follows: When adopting this solution, since the riser pipe assembly itself is equipped with an upper reinforcing triangular plate and a lower reinforcing triangular plate welded to the riser pipe, the front end of the cradle and the front end of the main pipe of the semi-frame can just be inserted between the upper reinforcing triangular plate and the lower reinforcing triangular plate, so as to utilize the structure of the riser pipe assembly to form a clamp on the end of the semi-frame. And the riser pipe assembly can be positioned and clamped by the riser pipe positioning and clamping device, so that the front end position of the semi-frame is also limited; the tail end of the semi-frame is clamped by the tail positioning and clamping device, so as to ensure the fixed position of the tail end of the semi-frame. In order to further improve the dimensional accuracy after splicing in this solution, in the middle of the semi-frame, a middle positioner with a left positioning component and a right positioning component is used to form the limitation of the horizontal position and height position of the left and right semi-frames, which helps to improve the positioning accuracy on the basis of ensuring the assembly of the riser pipe and the semi-frame.

[0008] In addition, in this solution, the positioning components are all equipped with height positioning posts, so as to ensure the limitation of the left and right semi-frames in height and ensure the accuracy of height. Then, the horizontal position of the semi-frame is restricted by the horizontal limiting posts of the positioning components to improve the positioning accuracy of the semi-frame.

[0009] In addition, in this solution, by setting one of the horizontal limiting posts in the form of a U-shaped limiting groove that matches the size of the metal pipe of the semi-frame, it is ensured to limit the horizontal position based on one of the semi-frames, and then the distance between the two semi-frames is ensured by the limiting protrusion on the other horizontal limiting post, which not only helps to ensure the accuracy of positioning but also is beneficial to the picking and placing of the semi-frame.

[0010] Preferably, as an improvement, the tail positioning and clamping device includes a taillight assembly, a taillight support seat and a tail pipe support block. The taillight assembly is detachably connected to the taillight support seat. An accommodating area for restricting the horizontal position of the tail pipe on the semi-frame is provided on the taillight assembly. The taillight assembly can press the tail pipe of the semi-frame downwards against the tail pipe support block. This solution forms the pressing of the semi-frame by means of the taillight assembly required by the frame itself, which helps to simplify production and at the same time facilitates the connection between the taillight assembly and the semi-frame.

[0011] Preferably, as an improvement, the height positioning post is installed on the driver, and the driver is used to drive the height positioning post away from or close to the design hole, so as to improve the degree of automation and facilitate the disassembly and assembly of the semi-frame on the welding fixture.

[0012] Preferably, as an improvement, the moving directions of the two height positioning posts are horizontal, and the two height positioning posts are used to press the semi-frame against the outside of the frame. Because when the frame is welded, there are still multiple cross tubes to be placed in the area between the left and right semi-frames. The height positioning posts that push outward can leave enough space between the left and right semi-frames before the middle cross tube is placed, facilitating the placement of the cross tube.

[0013] Preferably, as an improvement, both the left positioning assembly and the right positioning assembly further include a windshield bracket positioning post fixedly installed. The windshield bracket positioning post is located outside the frame and is used to fixedly install the front windshield bracket, and the front windshield bracket is used to be welded on the outside of the semi-frame.

[0014] Beneficial effects: When adopting this solution, after the cross tube is installed between the two semi-frames, in order to ensure that the distance between the two semi-frames will not be too large due to the pushing of the height positioning pin on the height positioning post, the front windshield bracket fixed on the outside of the frame is used to limit the distance between the left and right semi-frames. Thus, with the cooperation of the height positioning post that pushes outward and the symmetric front windshield brackets that limit the position inward, the positioning accuracy of the semi-frame is ensured.

[0015] Preferably, as an improvement, the riser positioning and pressing device includes a riser pressing device and a riser positioning device. The riser pressing device is used to press the riser, and the riser positioning device is used to prevent the riser from rotating.

[0016] Preferably, as an improvement, the riser pressing device includes a linear driver, a riser support seat, and a riser pressing block. The riser support seat is fixedly installed and is used to support the riser. The linear driver is used to drive the riser pressing block away from or close to the top of the riser to press the riser on the riser support seat.

[0017] Preferably, as an improvement, the riser positioning device includes a linear driver and a riser positioning pin. The linear driver is used to drive the riser positioning pin away from or insert it into the design hole of the riser assembly that is not axial, so as to prevent the riser assembly from rotating. Description of the Drawings

[0018] Figure 1 It is an overall schematic diagram of the motorcycle frame targeted by the embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the state before the assembly of the motorcycle frame in the prior art (showing that the motorcycle frame is divided into front and rear semi-parts).

[0020] Figure 3 is Figure 1 The three-dimensional structural schematic diagram of the middle frame after the left and right half frames, the riser assembly, the taillight assembly, and the cross tube are exploded.

[0021] Figure 4 is Figure 3 The top view of.

[0022] Figure 5 is Figure 3 The front view of.

[0023] Figure 6 The three-dimensional structural schematic diagram of the riser assembly used during the assembly of the embodiment of the present utility model.

[0024] Figure 7 The three-dimensional structural schematic diagram of the left half frame used during the assembly of the embodiment of the present utility model (the right half frame is basically the same as the left half frame and will not be shown separately).

[0025] Figure 8 The three-dimensional structural schematic diagram of the taillight assembly used during the assembly of the embodiment of the present utility model.

[0026] Figure 9 The three-dimensional structural schematic diagram of the embodiment of the present utility model.

[0027] Figure 10 is Figure 9 The front view of.

[0028] Figure 11 is Figure 10 The top view of.

[0029] Figure 12 is Figure 11 The A-A cross-sectional view in (for showing the schematic diagram of the positional relationship between the upper tail pipe, the taillight assembly, and the tail pipe support block).

[0030] Figure 13 This is a partial schematic diagram of the explosion of the tail frame plate alone in this embodiment for conveniently showing the relationship between the upper tail pipe, the tail frame connecting pipe, the tail frame plate, the tail frame reinforcing pipe, and the tail pipe support block.

[0031] Figure 14 This is a schematic diagram of the relationship between the cross tube (bracket connecting pipe, toilet tube assembly) and the corresponding cross tube support block, upper tube support plate, and mounting post in this embodiment.

[0032] Figure 15 is Figure 9 The three-dimensional structural schematic diagram after removing the half frame and the cross tube.

[0033] Figure 16 is Figure 15 The front view of.

[0034] Figure 17 is Figure 15 The three-dimensional structure schematic diagram after removing the riser pipe assembly and the tail pipe assembly.

[0035] Figure 18 is Figure 17 The three-dimensional structure schematic diagram after rotating a certain angle.

[0036] Figure 19 is Figure 17 The front view of Specific embodiments

[0037] The following is a further detailed description through specific embodiments:

[0038] The reference numerals in the accompanying drawings of the specification include: riser pipe positioning and pressing device 10, riser pipe support seat 111, riser pipe pressing block 112, riser pipe positioning pin 1113, tail positioning and pressing device 20, taillight assembly 21, tail frame plate 211, tail frame reinforcing pipe 212, tail frame fixing plate 213, taillight support seat 22, tail pipe support block 23, middle positioner 30, height positioning post 31, driver 311, horizontal limiting post 32, windshield bracket positioning post 33, cross pipe support block 34, upper pipe support plate 35, mounting post 36;

[0039] Riser pipe assembly 100, riser pipe 101, upper reinforcing triangular plate 102, lower reinforcing triangular plate 103, bike lock seat 104;

[0040] Taillight assembly 21, tail frame plate 211, tail frame reinforcing pipe 212, tail frame fixing plate 213;

[0041] Semi-frame 300, main pipe 301, trusteeship pipe 302, upper tail pipe 303, lower tail pipe 304, front windshield bracket 305, flat fork mounting plate 306;

[0042] Bracket connecting pipe 400, toilet pipe assembly 500.

[0043] The embodiment is basically as shown in the appendix Figures 3 to 19 shown.

[0044] A welding tooling for assembling and welding a motorcycle semi-frame and a riser pipe is used for assembling and positioning the formed left and right semi-frames 300, the riser pipe assembly 100 at the front end, and the taillight assembly 21 at the rear end, facilitating the subsequent assembly and welding of the left and right structures and the front and rear structures.

[0045] Combined with Figures 3 to 7 , specifically, the formed riser pipe assembly 100 includes a riser pipe 101, an upper reinforcing triangular plate 102 and a lower reinforcing triangular plate 103 welded to the riser pipe 101. A placement space for the main pipe 301 and the trusteeship pipe 302 at the front end of the semi-frame 300 is formed between the upper and lower reinforcing plates.

[0046] The already formed left half-frame 300 and right half-frame 300 both include a main pipe 301, a support pipe 302, an upper tail pipe 303, and a lower tail pipe 304. The end of the main pipe 301 and the support pipe 302 are welded through a connecting piece. One end of the main pipe 301 extending towards the rear of the motorcycle frame is welded to the corner position of the support pipe 302. One end of the support pipe 302 extending towards the rear end of the motorcycle frame is in a state of being backward and upward, for welding to the lower part of the middle of the upper tail pipe 303. The front end of the upper tail pipe 303 is welded to a section slightly behind the middle of the main pipe 301. A section near the end of the upper tail pipe 303 is welded to the end of the lower tail pipe 304. The front end of the lower tail pipe 304 extends forward and downward to be welded to a section near the tail of the support pipe 302. The half-frame also includes welded parts such as a flat fork mounting plate 306, a short pipe, a seat plate bracket, a turn signal lamp socket, and a footrest mounting plate, etc.

[0047] Combined with Figures 9 to 19 , a welding tool for assembling the motorcycle half-frame and the riser pipe includes a riser pipe positioning and pressing device 10, a tail positioning and pressing device 20, and a middle positioning device 30. The riser pipe positioning and pressing device 10 is used for positioning and pressing the riser pipe 101. The tail positioning and pressing device 20 is used for positioning and pressing a section of the tail of the half-frame 300 away from the riser pipe 101. The middle positioning device 30 is used for positioning the left half-frame 300 and the right half-frame 300 on the left and right sides of the riser pipe assembly 100 and the taillight assembly 21.

[0048] Specifically, the riser pipe positioning and pressing device 10 includes a riser pipe 101 pressing device and a riser pipe 101 positioning device. Both the riser pipe 101 pressing device and the riser pipe 101 positioning device include linear drivers. The riser pipe 101 pressing device further includes a riser pipe support seat 111 and a riser pipe pressing block 112. The riser pipe support seat 111 is fixed on the frame. The riser pipe support seat 111 is for the bottom of the riser pipe 101 to be inserted. The linear driver of the riser pipe 101 pressing device is used to drive the riser pipe pressing block 112 to move away from or close to the top of the riser pipe 101 to press the riser pipe 101 on the riser pipe support seat 111. The riser pipe 101 positioning device further includes a riser pipe positioning pin 1113. The linear driver of the riser pipe 101 pressing device is used to drive the riser pipe positioning pin 1113 to move away from or insert into the designed hole of the lock seat 104 on the riser pipe 101, to form a restriction on the rotation angle of the riser pipe 101, ensuring the accurate positioning and pressing of the riser pipe assembly 100 each time.

[0049] The tail positioning and pressing device 20 includes a taillight assembly 21, a taillight support seat 22, and a tail pipe support block 23. The taillight support seat 22 and the tail pipe support block 23 are fixedly installed on the frame. The taillight assembly 21 is detachably connected to the taillight support seat 22 through screws. The taillight assembly 21 is provided with a receiving area for restricting the horizontal position of the upper tail pipe 303 of the half-frame 300. The taillight assembly 21 can press the tail pipe of the half-frame 300 downward on the tail pipe support block 23.

[0050] Specifically, combined withFigure 8 , the taillight assembly 21 includes a tail frame plate 211, a tail frame reinforcing pipe 212 (in a square pipe structure) welded to the tail frame plate 211, and a U-shaped tail frame fixing plate 213 welded below the tail frame plate 211. The tail frame plate 211 covers the tail frame reinforcing pipe 212 and the tail frame fixing plate 213. The end face of the tail frame reinforcing pipe 212 is an arc surface, and the left and right ends of the tail frame plate 211 extend downward and are arc-shaped. The arc surface of the tail frame reinforcing pipe 212 and the arc shape of the tail frame plate 211 form a receiving area for clamping the upper tail pipe 303 from the left and right sides of the upper tail pipe 303. In this embodiment, the taillight assembly 21 required by the frame itself is used to form a pressing force on the half frame 300, which helps to simplify production and at the same time facilitates the connection between the taillight assembly 21 and the half frame 300.

[0051] The middle locator 30 includes a left positioning component and a right positioning component. The left positioning component and the right positioning component are used to position the left and right half frames 300 respectively. Both the left positioning component and the right positioning component include a height positioning post 31, a horizontally fixed limiting post 32, and a windshield bracket positioning post 33 fixed in place. The height positioning post 31 is provided with a height positioning pin, and the height positioning pin is used to insert into the designed hole on the flat fork mounting plate 306 of the half frame 300.

[0052] The height positioning post 31 is installed on the corresponding driver 311, and the corresponding driver 311 is used to drive the height positioning post 31 away from or close to the designed hole. The corresponding driver is fixed to the frame.

[0053] The moving directions of the two height positioning posts 31 are horizontal, and the two height positioning posts 31 are used to press the half frame 300 outward against the frame. Because when the frame is welded, there are multiple horizontal pipes to be placed in the area between the left and right half frames 300. The height positioning posts 31 that push outward can leave enough space between the left and right half frames 300 before the middle horizontal pipes are placed, facilitating the placement of the horizontal pipes.

[0054] There are a total of two horizontal limiting posts 32 for the left positioning component and the right positioning component. One of the horizontal limiting posts 32 is provided with a U-shaped limiting groove with an upward opening, and the other horizontal limiting post 32 is provided with a limiting protrusion. The horizontal limiting posts 32 are fixed to the frame.

[0055] The windshield support positioning column 33 is located outside the vehicle frame and is used to fixedly install the front windshield support 305, and the front windshield support 305 is used to be welded to the outside of the trusteeship 302 of the semi-vehicle frame 300. After the cross tube is installed between the two semi-vehicle frames 300, to ensure that the distance between the two semi-vehicle frames 300 will not be too large due to the pushing of the height positioning pin on the height positioning column 31, the front windshield support 305 fixed outside the vehicle frame is used to limit the distance between the left and right semi-vehicle frames 300, so that under the cooperation of the height positioning column 31 that pushes outwards and the symmetric front windshield support 305 that limits the position inwardly, the positioning accuracy of the semi-vehicle frame 300 is ensured.

[0056] Before welding the semi-vehicle frame 300, the riser assembly 100 and the cross tube of the motorcycle vehicle frame, the cross tube assembly also needs to be positioned. Combining Figures 3 to 5 , where the cross tube includes the toilet tube assembly 500 and the bracket connecting tube 400. The toilet tube assembly 500 is used to connect the upper parts of the left and right semi-vehicle frames 300 (that is, to connect the left and right upper tail tubes 303), and the bracket connecting tube 400 is used to connect the lower parts of the left and right semi-vehicle frames 300 (that is, to connect the lower parts of the left and right trusteeships 302).

[0057] To ensure that the cross tube does not shift during welding, the middle locator 30 also includes a fixedly installed cross tube support block 34 for supporting the bracket connecting tube 400 and an upper tube support plate 35 for supporting the toilet tube assembly 500. Each bracket connecting tube 400 is supported by at least two cross tube support blocks 34 to ensure the stability of the support.

[0058] The upper tube support plate 35 is rotatably connected to the fixedly provided mounting column 36. The mounting column 36 is located on one side of the bracket connecting tube 400. The mounting column 36 is processed with a limiting plane, and the limiting plane limits the rotation angle of the upper tube support plate 35. The rotation angle of the upper tube support plate 35 is 0 - 180°. To ensure the reliability of the positioning of the toilet tube assembly 500, positioning holes are processed on the left and right end faces of the upper tube support plate 35, and the positioning holes can be matched with the design holes on the toilet tube assembly 500 component, so as to facilitate the fixed connection of the toilet tube assembly 500 component and the upper tube support plate 35 through screws.

[0059] By designing the adjustable support plate in a form of rotational connection, the unity of flexibility and stability in the positioning of the toilet pipe assembly 500 is achieved. When the bracket connecting pipe 400 is placed, the upper pipe support plate 35 is rotated to the other side away from the installation position of the bracket connecting pipe 400 to create space for the installation of the toilet pipe assembly 500; after the bracket connecting pipe 400 is docked with the left and right half vehicle frames 300, the upper pipe support plate 35 is rotated to the angle where the toilet pipe assembly 500 needs to be positioned, facilitating the positioning of the toilet pipe assembly 500. After completing the welding process of the half vehicle frame 300, the riser pipe assembly 100, and the horizontal pipe, first disconnect the connection between the vehicle frame and the tooling, and then lift the vehicle frame upward without disassembling the upper pipe support plate 35 to remove the restriction on taking out the assembled vehicle frame, optimizing the overall work process.

[0060] The above are only embodiments of the present utility model, and common general technical solutions and / or characteristics in the solutions are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solutions of the present utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A welding tooling for assembling a motorcycle semi-frame and a riser, comprising a riser positioning and clamping device and a tail positioning and clamping device. The riser positioning and clamping device is used for positioning and clamping the riser, and the tail positioning and clamping device is used for positioning and clamping a section of the tail of the semi-frame away from the riser. It is characterized in that: It further includes a middle locator, which comprises a left locating component and a right locating component. The left locating component and the right locating component are used to locate the left and right semi-frame respectively. Both the left locating component and the right locating component include a height locating post and a horizontal limiting post. The height locating post is provided with a height locating pin, which is used to insert into the design hole of the semi-frame. One of the horizontal limiting posts is provided with a U-shaped limiting groove with an upward opening, and the other horizontal limiting post is provided with a limiting protrusion.

2. The welding tooling for assembling a motorcycle semi-frame and a riser according to claim 1, characterized in that: The tail locating and pressing device includes a tail lamp assembly, a tail lamp support seat and a tail pipe support block. The tail lamp assembly is detachably connected to the tail lamp support seat. The tail lamp assembly is provided with a receiving area for restricting the horizontal position of the tail pipe on the semi-frame. The tail lamp assembly can press the tail pipe of the semi-frame downward against the tail pipe support block.

3. A welding tooling for assembling a motorcycle semi-frame and a riser according to any one of claims 1-2, characterized in that: The height locating post is installed on a driver, and the driver is used to drive the height locating post away from or close to the design hole.

4. A welding tooling for assembling a motorcycle semi-frame and a riser according to claim 3, characterized in that: The moving directions of the two height locating posts are horizontal, and the two height locating posts are used to press the semi-frame against the outside of the frame.

5. A welding tooling for assembling a motorcycle semi-frame and a riser according to claim 4, characterized in that: Both the left locating component and the right locating component further include a fixedly installed windshield support locating post, which is located outside the frame and is used to fixedly install the front windshield support. The front windshield support is used to be welded on the outside of the semi-frame.

6. A welding tooling for assembling a motorcycle semi-frame and a riser according to any one of claims 1, 2, 4 - 5, characterized in that: The riser locating and pressing device includes a riser pressing device and a riser locator. The riser pressing device is used to press the riser, and the riser locator is used to prevent the riser from rotating.

7. A welding tooling for assembling a motorcycle semi-frame and a riser according to claim 6, characterized in that: The riser pressing device includes a linear driver, a riser support seat and a riser pressing block. The riser support seat is fixedly installed and is used to support the riser. The linear driver is used to drive the riser pressing block away from or close to the top of the riser.

8. A welding tooling for assembling a motorcycle semi-frame and a riser according to claim 6, characterized in that: The riser locator includes a linear driver and a riser locating pin. The linear driver is used to drive the riser locating pin away from or insert it into the non-axial design hole of the riser assembly.

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