A chassis seat tube welding fixture

Abstract

This utility model relates to the field of vehicle frame welding technology, specifically to a welding fixture for vehicle frame seatposts. It includes a base, two clamping mechanisms, and an adjustment mechanism. The adjustment mechanism includes a guide rail, a threaded rod, a slider, a U-shaped connecting rod, a fixing plate, and two vertical adjustment units. The seatpost and frame are placed on their respective clamping mechanisms. By rotating the threaded rod and engaging the threaded hole, the slider slides within the guide rail, thereby moving the U-shaped connecting rod and the fixing plate, which in turn moves the corresponding clamping mechanisms. This adjusts the distance between the seatpost and the frame. Furthermore, the side-mounted guide rail prevents debris from falling onto the threaded rod during welding, thus avoiding any impact on its use. This facilitates welding different models of seatposts and frames, improving flexibility.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame welding technology, and in particular to a welding fixture for vehicle frame seat tubes. Background Technology

[0002] The seatpost is the core component of a bicycle or electric bike frame that connects the saddle to the frame body. It directly affects comfort, handling, and safety by supporting the rider's weight, transmitting pedaling force, and adjusting riding posture.

[0003] In the existing technology, when producing the seat tube of a bicycle frame, it is necessary to weld various parts of the seat tube to form a whole, which is convenient for subsequent installation on the whole frame. Currently, the seat tube to be welded and the frame are fixed to the device separately by a jig, which makes it easier to weld them together.

[0004] However, in the aforementioned prior art, the current device cannot adjust the seat post after clamping, cannot weld seat posts and frames of different models, and lacks flexibility. Utility Model Content

[0005] The purpose of this utility model is to provide a frame seatpost welding fixture, which solves the problems of existing devices being unable to adjust the seatpost after clamping, unable to weld seatposts and frames of different models, and lacking flexibility.

[0006] To achieve the above objectives, this utility model provides a chassis seat tube welding fixture, including a base, two clamping mechanisms, and an adjustment mechanism. The adjustment mechanism includes a guide rail, a threaded rod, a slider, a U-shaped connecting rod, a fixing plate, and two vertical adjustment units. The adjustment mechanism is located at the upper end of the base. The guide rail is fixedly connected to the upper end of the base. The threaded rod is rotatably connected to the guide rail and located inside the guide rail. The slider is slidably adapted to the guide rail and has a threaded hole that is adapted to the threaded rod. The U-shaped connecting rod is fixedly connected to the side of the slider. The fixing plate is fixedly connected to the upper end of the U-shaped connecting rod. The two vertical adjustment units are respectively fixedly connected to the upper ends of the base and the fixing plate.

[0007] Each of the vertical adjustment units includes multiple vertical rods and multiple rings. One end of each of the multiple vertical rods is fixedly connected to the upper end of the fixed plate. Each of the multiple rings is slidably adapted to the corresponding vertical rod. Each of the multiple rings is fixedly connected to the corresponding clamping mechanism.

[0008] Each of the clamping mechanisms includes a U-shaped plate, a bolt, a clamping plate, and a rotating rod. The U-shaped plate is fixedly connected to a plurality of the rings. One end of the bolt passes through the outer wall of the U-shaped plate and is fixedly connected to the clamping plate. The rotating rod is fixedly connected to the other end of the bolt.

[0009] Each clamping mechanism further includes two soft pads, which are fixedly connected to the inner walls of the clamping plate and the U-shaped plate, respectively.

[0010] The frame seatpost welding fixture also includes a bottom bracket, which is fixedly connected to the base and located at the lower end of the base.

[0011] This utility model discloses a welding fixture for a bicycle frame seatpost. The seatpost and frame are placed on corresponding clamping mechanisms. By rotating the threaded rod and engaging the threaded hole, the slider slides within the guide rail, thereby moving the U-shaped connecting rod and the fixing plate. This, in turn, moves the corresponding clamping mechanisms, adjusting the distance between the seatpost and the frame. Furthermore, the side-mounted guide rail prevents welding debris from easily falling onto the threaded rod, thus avoiding any impact on its use. This facilitates welding different models of seatposts and frames, improving flexibility. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a front view of the entire utility model.

[0015] Figure 3 This is a left view of the entire utility model.

[0016] Figure 4 This is a top view of the entire utility model.

[0017] 101-Base, 102-Bottom bracket, 103-Guide rail, 104-Threaded rod, 105-Slider, 106-U-shaped connecting rod, 107-Fixing plate, 108-Vertical rod, 109-Ring, 110-U-shaped plate, 111-Bolt, 112-Clamping plate, 113-Rotating rod, 114-Soft pad, 115-Threaded hole, 116-Cylinder, 117-Motor. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a left view of the entire utility model. Figure 4 This is a top view of the entire utility model.

[0020] This utility model provides a welding fixture for a vehicle frame seat tube, including a base 101, two clamping mechanisms, an adjustment mechanism, and a bottom support 102. The adjustment mechanism includes a guide rail 103, a threaded rod 104, a slider 105, a U-shaped connecting rod 106, a fixing plate 107, and two vertical adjustment units. Each vertical adjustment unit includes multiple vertical rods 108 and multiple rings 109. Each clamping mechanism includes a U-shaped plate 110, a bolt 111, a clamping plate 112, a rotating rod 113, and two soft pads 114. The slider 105 has a threaded hole 115.

[0021] In this specific embodiment, the seat tube and frame are placed on the corresponding clamping mechanisms. The output of the motor 117 drives the threaded rod 104 to rotate, and with the cooperation of the threaded hole 115, the slider 105 slides in the guide rail 103, thereby moving the U-shaped connecting rod 106 and the fixing plate 107, which in turn moves the corresponding clamping mechanism, thus adjusting the distance between the seat tube and the frame. Furthermore, the side placement of the guide rail 103 prevents impurities from falling onto the threaded rod 104 during welding, thus not affecting its use. This facilitates the welding of different models of seat tubes and frames, improving flexibility. The output of the cylinder 116 pushes the U-shaped plate 110 to move, and the multiple rings 109 slide on the corresponding vertical rods 108, thereby improving the stability of the U-shaped plate 110. The seat tube or frame is placed inside the U-shaped plate 110. By rotating the rotating rod 113, the bolt 111 is rotated, which in turn moves the clamping plate 112, causing the clamping plate 112 to clamp the workpiece. The two soft pads 114 protect the workpiece and prevent it from being damaged or deformed due to excessive force during clamping. The bottom bracket 102 provides support for the base 101.

[0022] The adjustment mechanism is located at the upper end of the base 101. The guide rail 103 is fixedly connected to the upper end of the base 101. The threaded rod 104 is rotatably connected to the guide rail 103 and is located inside the guide rail 103. The slider 105 is slidably adapted to the guide rail 103. The slider 105 has a threaded hole 115, which is adapted to the threaded rod 104. The U-shaped connecting rod 106 is fixedly connected to the side of the slider 105. The fixing plate 107 is fixedly connected to the upper end of the U-shaped connecting rod 106. The two vertical adjustment units are fixedly connected to the upper ends of the base 101 and the fixing plate 107, respectively. The adjustment mechanism also includes a motor 117, which is fixedly connected to the side of the guide rail 103. The output end of the motor 117 passes through the guide rail 103 and is fixedly connected to the threaded rod 104. The seat tube and the frame are placed on the corresponding clamping mechanisms. The output end of the motor 117 drives the threaded rod 104 to rotate, and with the cooperation of the threaded hole 115, the slider 105 slides in the guide rail 103, thereby driving the U-shaped connecting rod 106 and the fixing plate 107 to move, which in turn drives the corresponding clamping mechanism to move, thereby adjusting the distance between the seat tube and the frame. Furthermore, the side placement of the guide rail 103 makes it less likely for impurities that fall during welding to fall onto the threaded rod 104, thus not affecting the use of the threaded rod 104. This facilitates the welding of different models of seat tubes and frames, improving flexibility.

[0023] Secondly, one end of each of the multiple vertical rods 108 is fixedly connected to the upper end of the fixed plate 107, and each of the multiple rings 109 is slidably adapted to the corresponding vertical rod 108. Each of the multiple rings 109 is also fixedly connected to the corresponding clamping mechanism. The U-shaped plate 110 is fixedly connected to the multiple rings 109. One end of the bolt 111 passes through the outer wall of the U-shaped plate 110 and is fixedly connected to the clamping plate 112. The rotating rod 113 is fixedly connected to the other end of the bolt 111. Each vertical adjustment unit includes a cylinder 116, which is fixedly connected to the upper end of the fixed plate 107. The output end of the cylinder 116 is fixedly connected to the bottom of the U-shaped plate 110. The output end of the cylinder 116 pushes the U-shaped plate 110 to move, and the multiple rings 109 slide on the corresponding vertical rods 108, thereby improving the stability of the U-shaped plate 110. The seat tube or frame is placed inside the U-shaped plate 110. By rotating the rotating rod 113, the bolt 111 is rotated, which in turn moves the clamping plate 112, so that the clamping plate 112 clamps the workpiece.

[0024] Meanwhile, the two soft pads 114 are fixedly connected to the inner walls of the clamping plate 112 and the U-shaped plate 110, respectively. The two soft pads 114 protect the workpiece, preventing damage or deformation caused by excessive force during clamping.

[0025] Furthermore, the bottom bracket 102 is fixedly connected to the base 101 and is located at the lower end of the base 101. The bottom bracket 102 provides support and load-bearing capacity for the base 101.

[0026] When using the frame seatpost welding fixture of this utility model, the seatpost and frame are placed on the corresponding clamping mechanisms. The output end of the motor 117 drives the threaded rod 104 to rotate, and with the cooperation of the threaded hole 115, the slider 105 slides in the guide rail 103, thereby driving the U-shaped connecting rod 106 and the fixing plate 107 to move, which in turn drives the corresponding clamping mechanism to move, thereby adjusting the distance between the seatpost and the frame. Furthermore, the side placement of the guide rail 103 prevents impurities from falling onto the threaded rod 104 during welding, thus not affecting the use of the threaded rod 104. This facilitates the welding of different models of seatposts and frames, improving flexibility. The output end of the cylinder 116 pushes the U-shaped plate 110 to move, and the multiple rings 109 slide on the corresponding vertical rods 108, thereby improving the stability of the U-shaped plate 110. The seat tube or frame is placed inside the U-shaped plate 110. By rotating the rotating rod 113, the bolt 111 is rotated, which in turn moves the clamping plate 112, causing the clamping plate 112 to clamp the workpiece. The two soft pads 114 protect the workpiece and prevent it from being damaged or deformed due to excessive force during clamping. The bottom bracket 102 provides support for the base 101.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A welding fixture for a vehicle frame seatpost, characterized in that, Includes a base, two clamping mechanisms, and an adjustment mechanism; The adjustment mechanism includes a guide rail, a threaded rod, a slider, a U-shaped connecting rod, a fixing plate, and two vertical adjustment units. The adjustment mechanism is located at the upper end of the base. The guide rail is fixedly connected to the upper end of the base. The threaded rod is rotatably connected to the guide rail and located inside the guide rail. The slider is slidably adapted to the guide rail. The slider has a threaded hole that is adapted to the threaded rod. The U-shaped connecting rod is fixedly connected to the side of the slider. The fixing plate is fixedly connected to the upper end of the U-shaped connecting rod. The two vertical adjustment units are respectively fixedly connected to the upper ends of the base and the fixing plate.

2. The frame seat tube welding fixture as described in claim 1, characterized in that, Each of the vertical adjustment units includes multiple vertical rods and multiple rings. One end of each of the multiple vertical rods is fixedly connected to the upper end of the fixed plate. Each of the multiple rings is slidably adapted to the corresponding vertical rod. Each of the multiple rings is fixedly connected to the corresponding clamping mechanism.

3. The frame seat tube welding fixture as described in claim 2, characterized in that, Each of the clamping mechanisms includes a U-shaped plate, a bolt, a clamping plate, and a rotating rod. The U-shaped plate is fixedly connected to a plurality of the rings. One end of the bolt passes through the outer wall of the U-shaped plate and is fixedly connected to the clamping plate. The rotating rod is fixedly connected to the other end of the bolt.

4. The frame seat tube welding fixture as described in claim 3, characterized in that, Each of the clamping mechanisms further includes two soft pads, which are respectively fixedly connected to the inner walls of the clamping plate and the U-shaped plate.

5. The frame seat tube welding fixture as described in claim 4, characterized in that, The frame seatpost welding fixture also includes a bottom bracket, which is fixedly connected to the base and located at the lower end of the base.

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