A tool for correcting arc opening

Abstract

The present invention discloses an arc-shaped opening correction tool, comprising: a reference seat, having a contoured surface matching the arc-shaped opening of a workpiece; a bracket, connected to the reference seat; a rolling wheel, arranged in the direction of the bending center of the contoured surface, the rolling wheel having an eccentric driving shaft, the driving shaft being mounted on the bracket through a bearing, the rolling wheel being able to rotate around the driving shaft, and cooperating with the contoured surface to roll the workpiece between the reference seat and the rolling wheel. The reference seat adopts a contoured design, which is equivalent to the original curved surface reference of the opening part, and can be compared during repair, and the effect is clear at a glance. There is no need to knock the plate during repair, and no "extension" will occur, which effectively reduces the risk of plate thinning. The rolling process is uniformly stressed, the molding effect is good, and no undesirable problems such as pits will occur, which effectively improves the repair quality. The tool is easy to use, and the rolling wheel can be directly driven by the driving shaft after installation to repair the deformed part, which is very efficient.

Description

Technical Field

[0001] The invention is used in the field of automobile repair tools, and particularly relates to an arc-shaped opening correction tool. Background Art

[0002] The trunk opening is the primary location for waterproof stripping. This opening is constructed from a single-layer steel plate (approximately 0.6-0.7mm thick, a thin sheet that is easily deformed). This area can be susceptible to deformation during processing due to external factors, such as those caused by collisions. If the opening is uneven, waterproof stripping can leak when installed (due to poor sealing due to poor adhesion). Therefore, high flatness is crucial for this area. Deformation at corners is particularly challenging to repair (corners are curved, making them difficult to correct), and current methods are unable to achieve a smooth finish. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide an arc-shaped opening correction tool.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A curved opening correction tool, comprising:

[0006] A reference seat having a contoured surface matching the arc-shaped opening of the workpiece;

[0007] a bracket connected to the reference seat;

[0008] A rolling wheel is arranged in the direction of the bending center of the profiling surface. The rolling wheel has an eccentric drive shaft, and the drive shaft is installed on the bracket through a bearing. The rolling wheel can rotate around the drive shaft and cooperate with the profiling surface to roll the workpiece located between the reference seat and the rolling wheel.

[0009] In some embodiments, the bracket includes a clamping adjustment seat, the clamping adjustment seat is provided with a mounting hole, the clamping adjustment seat is provided with at least three positioning screws along the circumference of the mounting hole, the rolling wheel is located below the clamping adjustment seat, the drive shaft passes through the mounting hole, the positioning screw is threadedly connected to the clamping adjustment seat and tightens the bearing located in the mounting hole, and adjusting the positioning screw can change the position of the bearing in the mounting hole.

[0010] In some embodiments, the outer peripheral surface of the bearing is provided with a positioning hole that cooperates with the positioning screw.

[0011] In some embodiments, further comprising:

[0012] The ratchet mechanism comprises a ratchet and a ratchet handle, wherein the ratchet is connected to the drive shaft, and the ratchet handle is provided with a non-return pawl matched with the ratchet.

[0013] In some embodiments, the bracket further includes a first bracket and a second bracket, the first bracket and the second bracket are connected to both ends of the reference seat along the extension direction of the contoured curved surface, and the clamping adjustment seat is connected to the first bracket and the second bracket on both sides.

[0014] In some embodiments, the first bracket and the second bracket are detachably connected to two ends of the reference base.

[0015] In some embodiments, the first bracket has a first connecting arm extending above the rolling wheel, and the first connecting arm is provided with a first pin hole. The second bracket has a second connecting arm extending above the rolling wheel, and the second connecting arm is provided with a second pin hole. The bottom of the clamping adjustment seat is provided with a pin that cooperates with the first pin hole and the second pin hole.

[0016] In some embodiments, further comprising:

[0017] A clamp is used to clamp the workpiece to the first bracket or the second bracket.

[0018] In some embodiments, the clamp includes a support rod, a rocker, a connecting rod and a pull rod, one end of the support rod is connected to the first bracket or the second bracket, the support rod, rocker, connecting rod and pull rod are hinged in sequence, the pull rod passes over the edge of the first bracket or the second bracket, and is connected to the pressure head at the end, and the rocker is provided with a rocker handle.

[0019] In some embodiments, electromagnets are provided at the bottom of the first bracket and the second bracket, and power supplies and switches connected to the electromagnets are provided inside the first bracket and the second bracket.

[0020] One of the above technical solutions has at least one of the following advantages or beneficial effects: the deformed workpiece plate is corrected and repaired by using rolling forming. The tool has a reference seat and a rolling wheel, which are used in conjunction with each other. The reference seat is the fixed side and the rolling wheel is the movable side. During operation, it can generate a clamping and pressurizing force on the workpiece plate, so that the workpiece plate is deformed accordingly, thereby achieving the main purpose of repair.

[0021] The datum base features a contoured design, acting as a reference to the original curved surface of the opening, allowing for easy comparison during repair, ensuring a clear visual inspection of the results. No hammering is required during repair, preventing stretching and effectively reducing the risk of sheet thinning. The rolling process ensures uniform force distribution, resulting in a superior forming effect and eliminating defects such as pitting, effectively improving the quality of the repair. The tool is easy to use; after installation, the rolling wheel can be driven directly by the drive shaft to repair deformed areas, achieving high efficiency.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the reference base and bracket structure of an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 A schematic diagram of the rolling wheel and drive shaft structure of an embodiment shown;

[0026] Figure 3 yes Figure 1 A schematic diagram of the first bracket structure of an embodiment is shown;

[0027] Figure 4 yes Figure 1 A schematic diagram of the structure of a clamping adjustment seat in one embodiment is shown. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be understood as limiting the scope of protection of the present invention.

[0029] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0030] In the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," "exceeds," etc. are understood to exclude the number itself; "above," "below," "within," etc. are understood to include the number itself. In the description of the present invention, the use of "first" or "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the present invention, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection or electrical connection or mutual communication; and internal connection between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] in, Figure 1 A reference direction coordinate system of an embodiment of the present invention is given. The embodiment of the present invention is described below with reference to the directions shown in FIG. 1 .

[0033] See also Figure 1 、 Figure 2 An embodiment of the present invention provides an arc-shaped opening correction tool that can be used to correct and repair workpieces such as the opening of a car trunk. The arc-shaped opening correction tool includes a reference base 1, a bracket 2, and a rolling wheel 3. The bracket 2 is connected to the reference base 1. The reference base 1 adopts a contouring design and has a contouring surface 11 that matches the arc-shaped opening of the workpiece. The reference base 1 is equivalent to a reference module. Its outer shape is L-shaped and can completely fit the contouring surface 11 of the opening. The reference base 1 is fixed to the bracket 2. When the rolling wheel 3 rolls and applies pressure to the plate, the reference base 1 can play a supporting role.

[0034] See also Figure 2 The rolling wheel 3 is the active side of the entire tool. It is positioned toward the center of the contoured surface 11 and includes an eccentric drive shaft 31. Drive shaft 31 and rolling wheel 3 are integrally manufactured or assembled as a single unit. Drive shaft 31 is mounted to bracket 2 via bearing 32. The rolling wheel 3 can rotate about drive shaft 31 and cooperate with the contoured surface 11 to roll the workpiece between the base 1 and the rolling wheel 3. In other words, the rolling wheel 3 is driven by the drive shaft 31 and utilizes eccentric clamping, which relies on the gradually increasing radius of the eccentric wheel as it rotates to generate a clamping force to clamp the workpiece. This force is applied directly to the sheet material at the opening.

[0035] When using the arc-shaped opening correction tool of this embodiment to correct and repair the opening of a car trunk, the specific operation process is as follows:

[0036] 1) Fix the installation tool to the vehicle body; 2) Drive the drive shaft 31. At this time, the rolling wheel 3 and the reference seat 1 clamp and press the opening panel until the rolling is completed; 3) Remove the tool and take it out; 4) Install the rubber strip to confirm the matching state.

[0037] This embodiment uses rolling forming to perform corrective repair on the deformed workpiece plate. The tool is provided with a reference seat 1 and a rolling wheel 3, which are used in conjunction with each other. The reference seat 1 is the fixed side and the rolling wheel 3 is the movable side. During operation, they can generate a clamping and pressurizing force on the workpiece plate, causing the workpiece plate to deform accordingly, thereby achieving the main purpose of repair.

[0038] Compared with the traditional solution, the reference seat 1 of this embodiment adopts a contoured design, which is equivalent to the original curved reference of the opening. It can be compared during repair and the effect is clear at a glance. There is no need to knock the plate during repair, and there will be no "extension", which effectively reduces the risk of thinning of the plate. The force is evenly distributed during the rolling process, the forming effect is good, and there will be no defects such as pits, which effectively improves the quality of the repair. The tool is easy to use. After installation, the deformed part can be repaired by directly driving the rolling wheel 3 through the drive shaft 31, which is very efficient.

[0039] A correction reference mold is developed that can completely fit the curved surface of the opening part, and the repair effect can be referenced and compared, which improves the quality of the repair.

[0040] The eccentric clamping method is used to repair the deformed parts, so that the plate is evenly stressed during repair, and the one-time forming effect is good, which greatly shortens the repair time and improves efficiency.

[0041] Since the base 1 adopts a contoured design, when different curved surfaces need to be repaired, the base 1 can be switched and adjusted as needed. In order to meet the requirements of the matching between the rolling wheel 3 and different bases 1, in some embodiments, see Figure 1 The bracket 2 includes a clamping adjustment seat 21, which is used to adjust the relative position between the rolling wheel 3 and the reference seat 1. Specifically, the clamping adjustment seat 21 is provided with a mounting hole 22. The mounting hole 22 has a large aperture to ensure that the drive shaft 31 can be adjusted therein. The clamping adjustment seat 21 is provided with at least three positioning screws 23 along the circumference of the mounting hole 22. The rolling wheel 3 is located below the clamping adjustment seat 21. The drive shaft 31 passes through the mounting hole 22. The positioning screws 23 are threadedly connected to the clamping adjustment seat 21 and tighten against the bearing 32 located in the mounting hole 22. Adjusting the positioning screws 23 can change the position of the bearing 32 in the mounting hole 22.

[0042] For further information, see Figure 2In order to ensure the positioning accuracy of the positioning screw 23 and the bearing 32, the outer peripheral surface of the bearing 32 is provided with a positioning hole 33 that cooperates with the positioning screw 23.

[0043] The drive shaft 31 can be driven by a motor or manually, for example, in some embodiments, see Figure 2 The correction tool also includes a ratchet mechanism, which includes a ratchet 41 and a ratchet handle 42. The ratchet 41 is connected to the drive shaft 31, and the ratchet handle 42 is equipped with a non-return pawl that cooperates with the ratchet 41. When the rolling wheel 3 is driven, the ratchet handle 42 is pushed back and forth. At this time, the rolling wheel 3 and the reference seat 1 clamp and press the opening plate until the rolling is completed. The ratchet 41 mechanism drives the rolling wheel 3, so that the rolling wheel 3 rolls, stops, and then rolls again to correct the opening, avoiding reversal during the process, and achieving a better correction effect.

[0044] In some embodiments, see Figure 1 The bracket 2 also includes a first bracket 24 and a second bracket 25. The first bracket 24 and the second bracket 25 are connected to the two ends of the reference base 1 along the extension direction of the contoured surface 11. The clamping adjustment base 21 is connected to the first bracket 24 and the second bracket 25 on both sides, so that the clamping adjustment base 21, the first bracket 24, the second bracket 25 and the reference base 1 form a stable whole to ensure that during the correction process of the rolling wheel 3, the reference base 1 can provide a stable supporting force for the workpiece.

[0045] When it is necessary to repair parts of different curved surfaces, the reference base 1 is switchable, and the first bracket 24 and the second bracket 25 are detachably connected to the two ends of the reference base 1.

[0046] In some embodiments, see Figure 1 、 Figure 3 、 Figure 4 The first bracket 24 has a first connecting arm 26 extending above the rolling wheel 3, with a first pin hole 27 defined in the first connecting arm 26. The second bracket 25 has a second connecting arm 28 extending above the rolling wheel 3, with a second pin hole defined in the second connecting arm 28. A latch 29 is provided at the bottom of the clamping adjustment seat 21, engaging with the first and second pin holes. The latch 29 connects the clamping adjustment seat 21 to the brackets 2 on either side, forming a hinged structure that meets installation and adaptation requirements after the clamping adjustment seat 21 is replaced.

[0047] See also Figure 1 The arc opening correction tool also includes a clamp 5, which is used to clamp the workpiece to the first bracket 24 or the second bracket 25 to achieve clamping and positioning of the workpiece and the tool before correction.

[0048] The clamp 5 can be a pneumatic, manual or other type of clamp 5. For example, in some embodiments, see Figure 1The clamp 5 includes a support rod 51, a rocker 52, a connecting rod 53, and a pull rod 54. One end of the support rod 51 is connected to the first bracket 24 or the second bracket 25. The support rod 51, rocker 52, connecting rod 53, and pull rod 54 are hinged in sequence. In other words, the ends of the rocker 52 are hinged to the support rod 51 and the connecting rod 53, respectively, and the ends of the connecting rod 53 are hinged to the rocker 52 and the pull rod 54, respectively. The end of the pull rod 54 passes over the edge of the first bracket 24 or the second bracket 25 and is connected to the pressure head 55 at the end. The rocker 52 is equipped with a rocker handle 56. The clamp 5 mainly clamps the edge of the opening. When in use, the rocker handle 56 is moved, and the rocker 52 drives the connecting rod 53, which in turn drives the pull rod 54, which in turn drives the pressure head 55 away from the bracket 2. When the opening panel is in place, the rocker handle 56 is moved in the opposite direction, and the rocker 52 drives the connecting rod 53, the connecting rod 53 drives the pull rod 54, and the pull rod 54 drives the pressure head 55 to approach the bracket 2, thereby clamping the opening panel to the bracket 2. The structure of the support rod 51, rocker 52, connecting rod 53 and pull rod 54 being hinged in sequence can ensure that the opening panel is self-locking after being clamped.

[0049] In some embodiments, electromagnets are located at the bottom of the first and second brackets 24, 25. A power source and switch 6 connected to the electromagnets are located within the first and second brackets 24, 25. When the electromagnets are energized, they securely attach the tool to the vehicle body. The combined use of the electromagnets and the clamp 5 provides a very secure grip.

[0050] Throughout this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An arc opening correction tool, characterized in that: include: A reference seat having a contoured surface matching the arc-shaped opening of the workpiece; A bracket connected to the reference seat; A rolling wheel is arranged in the direction of the bending center of the profiling curved surface, the rolling wheel has an eccentric driving shaft, the driving shaft is installed on the bracket through a bearing, the rolling wheel can rotate around the driving shaft, and cooperates with the profiling curved surface to roll the workpiece between the reference seat and the rolling wheel; The bracket includes a clamping adjustment seat, the clamping adjustment seat is provided with a mounting hole, the clamping adjustment seat is provided with at least three positioning screws along the circumference of the mounting hole, the rolling wheel is located below the clamping adjustment seat, the drive shaft passes through the mounting hole, the positioning screw is threadedly connected to the clamping adjustment seat and tightens the bearing located in the mounting hole, and adjusting the positioning screw can change the position of the bearing in the mounting hole.

2. The arc opening correction tool according to claim 1, characterized in that: The outer peripheral surface of the bearing is provided with a positioning hole matched with the positioning screw.

3. The arc opening correction tool according to claim 1, characterized in that: Also includes: The ratchet mechanism comprises a ratchet and a ratchet handle, wherein the ratchet is connected to the driving shaft, and the ratchet handle is provided with a non-return pawl matched with the ratchet.

4. The arc opening correction tool according to claim 1, characterized in that: The bracket further comprises a first bracket and a second bracket, wherein the first bracket and the second bracket are connected to two ends of the reference seat along the extension direction of the contoured curved surface, and the clamping adjustment seat is connected to the first bracket and the second bracket on both sides.

5. The arc opening correction tool according to claim 4, characterized in that: The first bracket and the second bracket are detachably connected to two ends of the reference base.

6. The arc opening correction tool according to claim 4, characterized in that: The first bracket has a first connecting arm extending above the rolling wheel, and the first connecting arm is provided with a first pin hole. The second bracket has a second connecting arm extending above the rolling wheel, and the second connecting arm is provided with a second pin hole. The bottom of the clamping adjustment seat is provided with a pin that cooperates with the first pin hole and the second pin hole.

7. The arc opening correction tool according to claim 4, characterized in that: Also includes: A clamp is used to clamp the workpiece to the first bracket or the second bracket.

8. The arc opening correction tool according to claim 7, characterized in that: The clamp includes a support rod, a rocker, a connecting rod and a pull rod, one end of the support rod is connected to the first bracket or the second bracket, the support rod, the rocker, the connecting rod and the pull rod are hinged in sequence, the pull rod passes over the edge of the first bracket or the second bracket and is connected to a pressure head at the end, and the rocker is provided with a rocker handle.

9. The arc opening correction tool according to claim 4, characterized in that: Electromagnets are provided at the bottom of the first bracket and the second bracket, and power supplies and switches connected to the electromagnets are provided inside the first bracket and the second bracket.

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