A bicycle front fork welding tool

Abstract

The utility model discloses a bicycle front frame welding frock, including base and sliding block, the top fixedly connected with support block of sliding block, the front and back surface of support block all are connected with movable block through hinge rotation, and the top of movable block is equipped with adjusting groove, and the inboard sliding connection of adjusting groove has adjusting block, and the top fixedly connected with the clamping block of adjusting block, the utility model discloses setting sliding block on the surface of slide rail, and the clamping position of sliding adjustment is appropriate, and the bicycle front frame surface is held with the clamping block of the adjusting block of left and right sides, and the clamping operation of adaptation different size is carried out simultaneously, and a plurality of sliding blocks can be set according to the length of front frame and carry out synchronous support clamping, compared with traditional fixed frock, the clamping position is adjusted according to different front frame conveniently, and the practicality of device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle welding technology, specifically a welding fixture for a bicycle front frame. Background Technology

[0002] In bicycle manufacturing, the front frame, as the core structural component connecting the handlebars, front wheel, and frame, directly affects the vehicle's riding safety and stability due to its welding quality. The bicycle front frame is typically welded from multiple metal parts, such as the seat tube, fork tube, and connecting plate. Ensuring the relative positional accuracy between these components is crucial; otherwise, it can lead to the vehicle veering off course, making abnormal noises, or even structural breakage during riding.

[0003] Existing bicycle front frame welding fixtures mostly feature fixed clamping positions, making them difficult to adapt to different front frame sizes. Changing bike models requires readjustment or fixture replacement, which is cumbersome. Furthermore, the fixed number of clamping points on traditional fixtures makes it inconvenient to adjust the clamping points on the front frame, potentially hindering welding equipment operation and rendering them impractical. Therefore, a new technical solution is proposed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture for bicycle front frames, which solves the problems mentioned in the background art. The clamping position of the existing bicycle front frame welding fixtures is mostly fixed, which makes it difficult to adapt to front frames of different sizes. When changing the model, the fixture needs to be readjusted or replaced, which is cumbersome. In addition, the number is fixed and the clamping position of the front frame is inconvenient to adjust.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for a bicycle front frame, comprising a base and a slider, wherein a support block is fixedly connected to the top of the slider, and movable blocks are rotatably connected to the front and rear surfaces of the support block via hinges, wherein an adjustment groove is provided at the top of the movable block, an adjustment block is slidably connected to the inner side of the adjustment groove, and a clamping block is fixedly connected to the top of the adjustment block.

[0006] In this technical solution, the slider is adjusted to the appropriate clamping position, and the adjusting blocks on both sides, along with their respective clamping blocks, clamp the surface of the bicycle front frame. This adapts to clamping operations of different sizes. Furthermore, multiple sliders can be set up to provide synchronous support and clamping according to the length of the front frame. Compared to traditional fixed fixtures, this allows for easier adjustment of the clamping position based on different front frames, improving the practicality of the device.

[0007] Preferably, a slide rail is fixedly connected to the top of the base, a plurality of sliders are provided on the surface of the slide rail, and the sliders are slidably connected to the slide rail. A plurality of equally spaced insertion holes are provided on the side wall of the slide rail, and a pin is inserted into the side wall of the slider. The pin passes through the side wall of the slider and is slidably connected to the insertion hole.

[0008] Preferably, the base has storage slots at both the left and right ends, an electric push rod is fixedly connected to the inner wall of the storage slot, and a stop plate is fixedly connected to the telescopic end of the electric push rod.

[0009] Preferably, both movable blocks have through screw grooves on their side walls, and the inner side of the screw grooves is threaded with a limit screw.

[0010] Preferably, an adjusting screw is threadedly connected to the outer wall of the movable block corresponding to the horizontal height of the adjusting groove. The adjusting screw passes through the side wall of the movable block and is rotatably connected to the adjusting block through a bearing seat.

[0011] Preferably, the two movable blocks fit together, and the adjusting screw is parallel to the base surface, with a handle at the outer end of the adjusting screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses sliders on the surface of the slide rail to adjust the appropriate clamping position, and the adjusting blocks on the left and right sides clamp the surface of the bicycle front frame with their respective clamping blocks, which can adapt to clamping operations of different sizes. At the same time, multiple sliders can be set according to the length of the front frame for synchronous support and clamping. Compared with traditional fixed fixtures, it is convenient to adjust the clamping position according to different front frames, thus improving the practicality of the device.

[0014] 2. This utility model sets the left and right clamping blocks on the movable blocks on both sides respectively. When the clamping blocks obstruct the welding equipment and it is necessary to release the clamping at a certain point, simply turn out the limiting screw to open the movable blocks on both sides. At this time, there is no need to adjust the position of the clamping blocks. After moving to the new position, close the movable blocks and turn in the limiting screw to quickly restore the clamping, which is convenient and quick. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the slider structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping block of this utility model.

[0020] In the diagram: 1. Base; 2. Slide rail; 201. Socket; 3. Slider; 301. Pin; 4. Support block; 5. Movable block; 501. Screw groove; 502. Limiting screw; 503. Adjustment groove; 6. Adjustment screw; 601. Handle; 7. Adjustment block; 8. Clamping block; 9. Storage groove; 10. Electric actuator; 11. Support plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A welding fixture for a bicycle front frame, see [link / reference] Figures 1 to 4 The system includes a base 1 and a slider 3. A support block 4 is fixedly connected to the top of the slider 3. Movable blocks 5 are rotatably connected to the front and rear surfaces of the support block 4 via hinges. An adjustment groove 503 is provided at the top of the movable block 5. An adjustment block 7 is slidably connected to the inner side of the adjustment groove 503. An adjustment screw 6 is threadedly connected to the outer side wall of the movable block 5 corresponding to the horizontal height of the adjustment groove 503. The adjustment screw 6 passes through the side wall of the movable block 5 and is rotatably connected to the adjustment block 7 through a bearing seat. A clamping block 8 is fixedly connected to the top of the adjustment block 7. A clamping groove is provided on the side wall of the clamping block 8.

[0023] In this technical solution, by rotating the adjusting screw 6, the adjusting screw 6 rotates within the screw groove 501 and pushes the adjusting block 7 to slide horizontally along the adjusting groove 503, thereby causing the clamping block 8 to move closer to or away from the front frame surface until the clamping block 8 is tightly fitted to the front frame, thus achieving clamping and fixing of the front frame. Since the adjusting block 7 slides stably within the adjusting groove 503, and the adjusting screw 6 is rotatably connected to the adjusting block 7 through the bearing seat, the adjusting block 7 is prevented from rotating with the adjusting screw 6, ensuring that the clamping block 8 only makes horizontal displacement, resulting in higher clamping accuracy. This ensures that the front frame does not loosen during welding and also avoids deformation of the front frame due to excessive clamping. At the same time, the sliding cooperation between the adjusting groove 503 and the adjusting block 7 makes the adjustment range of the clamping block 8 controllable, suitable for front frame components of different pipe diameters and shapes, improving the adaptability of the tooling to front frames of different sizes.

[0024] Specifically, such as Figure 4As shown, the two movable blocks 5 fit together, and the adjusting screw 6 is parallel to the surface of the base 1. The outer end of the adjusting screw 6 is provided with a handle 601. The limiting screw 502 passes through the screw grooves 501 of the two movable blocks 5, locking them together to form an integral support structure, ensuring the clamping stability of the clamping block 8 on the front frame. The side walls of the two movable blocks 5 are provided with through screw grooves 501. The inner side of the screw grooves 501 is threaded with the limiting screw 502. When the clamping block 8 obstructs the welding path or the operation of the welding equipment during welding operations, the limiting screw 502 is unscrewed, and the movable block 5 can rotate around the hinge to open and avoid the welding area. After adjusting the position, the movable block 5 is closed, and the limiting screw 502 is screwed back into the screw groove 501 to quickly restore the clamping state. There is no need to repeatedly disassemble or adjust the position of the clamping block 8, reducing the operation steps. The quick locking and unlocking function of the limiting screw 502 improves the efficiency of the clamping state restoration, shortens the auxiliary operation time, and improves the overall welding efficiency.

[0025] Furthermore, such as Figure 2 As shown, the base 1 has storage slots 9 at both ends. An electric actuator 10 is fixedly connected to the inner wall of each storage slot 9. A stop plate 11 is fixedly connected to the telescopic end of the electric actuator 10. Depending on the length of the bicycle front frame, the extension and retraction of the electric actuator 10 causes the stop plate 11 to extend or retract from the storage slot 9 until it is tightly fitted against both ends of the front frame, forming an axial limit. The extension and retraction stroke of the electric actuator 10 can be precisely controlled to adapt to front frames of different lengths, preventing axial movement of the front frame during welding and further ensuring welding position accuracy.

[0026] It is worth noting that, such as Figure 1 and Figure 2 As shown, a slide rail 2 is fixedly connected to the top of the base 1. Several sliders 3 are provided on the surface of the slide rail 2, and the sliders 3 are slidably connected to the slide rail 2. Several equally spaced insertion holes 201 are provided on the side wall of the slide rail 2. A pin 301 is inserted into the side wall of the slider 3. The pin 301 passes through the side wall of the slider 3 and is slidably connected to the insertion hole 201. The slider 3 is slidably adjusted along the slide rail 2. After determining a suitable clamping support point, the pin 301 is passed through the side wall of the slider 3 and inserted into the corresponding insertion hole 201 to fix the slider 3. Multiple sliders 3 can be set according to the length of the front frame to form a multi-point support and clamping structure, which can distribute the force on the front frame and reduce the deformation caused by local stress concentration. It is especially suitable for welding support of slender front frames, which improves the versatility and stability of the tooling.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A welding fixture for a bicycle front frame, comprising a base (1) and a slider (3), characterized in that: The top of the slider (3) is fixedly connected to a support block (4). The front and rear surfaces of the support block (4) are rotatably connected to movable blocks (5) via hinges. The top of the movable block (5) is provided with an adjustment groove (503). An adjustment block (7) is slidably connected to the inner side of the adjustment groove (503). The top of the adjustment block (7) is fixedly connected to a clamping block (8).

2. The bicycle front frame welding fixture according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a slide rail (2). The surface of the slide rail (2) is provided with a plurality of sliders (3), and the sliders (3) are slidably connected to the slide rail (2). The side wall of the slide rail (2) is provided with a plurality of equally spaced insertion holes (201). The side wall of the slider (3) is inserted with a pin (301), and the pin (301) passes through the side wall of the slider (3) and is slidably connected to the insertion hole (201).

3. The bicycle front frame welding fixture according to claim 2, characterized in that: The base (1) has storage slots (9) at both the left and right ends. An electric push rod (10) is fixedly connected to the inner side wall of the storage slot (9). A stop plate (11) is fixedly connected to the telescopic end of the electric push rod (10).

4. The bicycle front frame welding fixture according to claim 1, characterized in that: Both movable blocks (5) have through screw grooves (501) on their side walls, and the inner side of the screw grooves (501) is threaded with a limit screw (502).

5. The bicycle front frame welding fixture according to claim 1, characterized in that: An adjusting screw (6) is threadedly connected to the outer wall of the movable block (5) corresponding to the horizontal height of the adjusting groove (503). The adjusting screw (6) passes through the side wall of the movable block (5) and is rotatably connected to the adjusting block (7) through a bearing seat.

6. The bicycle front frame welding fixture according to claim 5, characterized in that: The two movable blocks (5) fit together, and the adjusting screw (6) is parallel to the surface of the base (1). The outer end of the adjusting screw (6) is provided with a handle (601).

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