Disc tooth marking tool
Through the innovative design of the limit pin and the base plate, the shortcomings of traditional tooling in terms of positioning accuracy and efficiency are solved, realizing efficient and reliable marking of disc-shaped parts. It is suitable for high-precision marking of new energy vehicle parts and is suitable for mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional tooling is insufficient in terms of positioning accuracy and efficiency, making it difficult to meet the high-efficiency and precise marking requirements of gear parts for new energy vehicles. In particular, it is inefficient in multi-batch and small-volume production, with complex positioning and difficulty in quick production changeover.
The innovative mechanical structure, featuring limit pins and a base plate, enables rapid and precise positioning of disc-shaped parts through clearance fit. The combination of limit pins and base plate made of aluminum or nylon materials prevents marking position deviation and is suitable for automated marking of disc-shaped parts.
It achieves efficient and reliable disc tooth marking, reduces the labor intensity of operators, improves marking quality and efficiency, is suitable for mass industrial production, and meets the marking requirements of new energy vehicle parts.
Smart Images

Figure CN223997540U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of manufacturing tooling technology, and in particular relates to a toothed marking tool. Background Technology
[0002] With the increasing automation and intelligence of industrial production, the demand for product labeling is growing. Labeling is not only used for product traceability but also plays a crucial role in anti-counterfeiting and quality control. Traditional labeling methods rely heavily on manual operation or simple mechanical positioning, which suffers from low positioning accuracy, low operational efficiency, and poor repeatability. This is particularly problematic in multi-batch, small-volume production, making it difficult to meet the modern industrial demand for efficient and precise labeling.
[0003] In the industrial sector of new energy vehicle components, the requirements for marking position and QR code accuracy are extremely high. Traditional tooling often struggles to achieve fast and accurate positioning and marking when faced with complex shapes and variable workpieces. Furthermore, traditional tooling fixtures have complex designs, require long adjustment times, and are difficult to adapt to the demands of rapid production changeovers.
[0004] To address these issues, the industry has begun exploring new marking fixture technologies, especially fixture systems capable of rapid and precise positioning. For example, Chinese patent application number 202420874837.8 discloses a marking fixture for automotive chassis workpieces, comprising a frame and a housing. The frame is housed inside the housing, and a positioning mechanism, a clamping mechanism, and a marking device are mounted on the frame. The positioning mechanism includes a positioning pin, and the clamping mechanism includes a rotary drive unit, a rotating rod, a fixed rod, and a connecting rod. The rotating rod is connected to the output end of the rotary drive unit, the fixed rod is fixedly mounted on the frame, and the connecting rod is fixedly connected to the rotating rod. The positioning mechanism further includes a mounting base and a positioning drive unit. The mounting base is fixedly mounted on the outer wall of one side of the frame, and the positioning drive unit is fixedly mounted on the outer wall of one side of the mounting base. The positioning pin is fixedly mounted on the output end of the positioning drive unit. The clamping mechanism… It also includes a mounting bracket, a connecting bracket, a limiting bracket, and a limiting block. The mounting bracket is fixedly installed on the outer wall of one side of the frame. The rotary drive unit is fixedly installed on the outer wall of one side of the mounting bracket. The rotating rod is fixedly installed on the outer wall of one side of the connecting bracket and is fixedly connected to the output end of the rotary drive unit. The limiting bracket is fixedly installed on the outer wall of one side of the rotary drive unit, and the limiting block is fixedly installed on the outer wall of one side of the limiting bracket. A slide rail is provided on the outer wall of one side of the frame, and a sliding seat is provided on the slide rail. The marking device is fixedly installed on the sliding seat. A moving drive unit is fixedly installed on the outer wall of one side of the frame. The output end of the moving drive unit is connected to a door rail provided on the outer wall of one side of the sliding seat. A protective door is slidably connected inside the door rail. For example, Chinese patent application number 202420642338.6 describes a laser marking fixture with quick loading and unloading function, comprising: a base, a first sliding part, a second sliding part, a fixture, and a laser assembly. The first sliding part is arbitrarily adjustable to the left and right and is located on the upper end of the base. The second sliding part is arbitrarily adjustable to the front and back and is located on the upper end of the first sliding part. A quick-release assembly is provided on the upper end of the second sliding part. The fixture is detachably connected to the quick-release assembly. The upper end of the fixture is provided with a groove for positioning the workpiece. The laser assembly is mounted on the upper end of the base for etching the workpiece.
[0005] However, there is currently no tooling specifically designed for marking disc-shaped parts. Therefore, disc-shaped positioning marking tooling has emerged. This technology, through its innovative mechanical structure and positioning method, solves the shortcomings of traditional tooling in terms of accuracy and efficiency, providing a more efficient and reliable marking solution for industrial production. Utility Model Content
[0006] The purpose of this invention is to provide a more efficient and reliable disc-tooth marking tool.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A toothed disc marking fixture includes a limiting pin and a base plate; wherein: the base plate has a central protrusion and a positioning hole I, and the positioning hole I is clearance-fitted with the central inner hole of the toothed disc part to be marked; the base plate also has a positioning hole II, the positioning hole II being positioned corresponding to a hole in the web of the toothed disc part to be marked; the limiting pin is connected to the positioning hole II via a clearance fit; and countersunk holes are evenly distributed around the perimeter of the base plate.
[0009] The base plate of this utility model is mounted on the worktable via a countersunk hole. When using this fixture, the central inner hole of the disc-shaped part to be marked is placed on the positioning hole I, and the hole at the web position of the disc-shaped part is placed on the limiting pin, thus positioning the disc-shaped part.
[0010] As a further explanation of this utility model, the limiting pin is clearance-fitted with the hole at the position of the web plate.
[0011] As a further explanation of this utility model, the limiting pin and the base plate are made of aluminum or nylon.
[0012] As a further explanation of this utility model, the base plate and the central protrusion are an integral structure. The protrusion is provided so that positioning hole I becomes a positioning tube, facilitating installation with disc-shaped parts.
[0013] Compared with existing technologies, the present invention has the following advantages:
[0014] This invention solves the shortcomings of traditional tooling in terms of precision and efficiency through innovative mechanical structure and positioning method, providing a more efficient and reliable marking solution for industrial production and preventing marking position deviation.
[0015] This invention facilitates automated laser marking, producing high-quality QR codes and clear codes that meet the marking requirements of the new energy gear industry. It is highly efficient, reduces the labor intensity of operators, and is highly practical, making it suitable for widespread use in mass industrial production. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the disc-tooth marking fixture provided in an embodiment of the present invention after the workpiece is placed inside.
[0017] Figure 2 This is a structural diagram of the tooling used in this utility model.
[0018] Figure 3 This is a top view of the tooling in this utility model.
[0019] Reference numerals: 1-Positioning hole I, 2-Limiting pin, 3-Base plate, 4-Disc gear type parts, 5-Hole at the web position, 6-Counterhole, 7-Positioning hole II. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments provided herein are for illustrative purposes only and do not constitute any limitation on the present invention. Furthermore, for the sake of simplicity, the accompanying drawings show only the parts of the structure directly related to the present invention, not all of them.
[0021] In the description of this utility model, unless otherwise specified, the terms "connected," "linked," and "fixed" should be interpreted broadly. This means that they can refer to a permanent connection, a detachable connection, or a connection existing as a whole; they can be a physical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediary, or an internal pathway or interaction between two elements. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0022] In the context of this utility model, unless otherwise specified, when referring to the first feature being "above" or "below" the second feature, this can refer to direct contact between the first and second features, or indirect contact between them through other features. Furthermore, "above," "above," and "on top" not only mean that the first feature is directly above or diagonally above the second feature, but can also simply mean that the first feature is horizontally higher than the second feature. Correspondingly, "below," "below," and "under" not only mean that the first feature is directly below or diagonally below the second feature, but can also simply mean that the first feature is horizontally lower than the second feature. Example
[0023] like Figure 1-3 As shown, a toothed disc marking fixture includes a limiting pin 2 and a base plate 3; wherein: the base plate 3 has a central protrusion and a positioning hole I1, and the positioning hole I1 is clearance-fitted with the central inner hole of the toothed disc part 4 to be marked; the base plate 3 also has a positioning hole II7, the positioning hole II7 being positioned corresponding to the hole 5 on the web of the toothed disc part 4 to be marked; the limiting pin 2 is connected to the positioning hole II7 through a clearance fit; and countersunk holes 6 are evenly distributed around the perimeter of the base plate 3.
[0024] In this embodiment, the central inner hole of the disc-shaped part 4 is placed on the positioning hole II1, and the inner hole of the workpiece and the positioning hole II1 are in clearance fit. The hole 5 at the web position is placed on the limiting pin 2 to fully limit the workpiece and prevent the workpiece from sliding or the marking position from shifting during the automated marking process. When replacing the part, it is only necessary to remove the limiting pin to complete the replacement of the part. The operation is simple and convenient and helps to improve the marking efficiency.
[0025] This embodiment further illustrates that the limiting pin 2 and the hole 5 at the web position are in clearance fit.
[0026] In this embodiment, the limiting pin 2 and the base plate 3 are made of aluminum. Aluminum is lightweight, oxidation-resistant, and easy to process. Furthermore, during the marking process, it prevents the tooling from being harder than the workpiece, reducing the risk of the tooling causing bumps and scratches to the workpiece, thereby lowering the defect rate. This makes it highly suitable for automated batch marking of high-precision workpieces.
[0027] The base plate 3 and the central protrusion are an integral structure.
[0028] Obviously, this utility model is not limited to the specific embodiments described above. Without departing from the core principles of this utility model, those skilled in the art can make some improvements and adjustments, and these improvements and adjustments also fall within the protection scope of this utility model. Furthermore, any parts not described in detail in this specification are prior art well known to those skilled in the art.
Claims
1. A disc tooth marking tooling, comprising a limit pin (2) and a base plate (3); characterized in that: The central position of the bottom plate (3) is protruded and provided with a positioning hole I (1), and the positioning hole I (1) is in clearance fit with the center inner hole of the disc tooth type part (4) to be marked; the bottom plate (3) is further provided with a positioning hole II (7), and the setting position of the positioning hole II (7) corresponds to the hole (5) of the web position of the disc tooth type part (4) to be marked; the limiting pin (2) is connected with the positioning hole II (7) through clearance fit; the periphery of the bottom plate (3) is further provided with evenly distributed counterbores (6).
2. The disc tooth marking fixture of claim 1, wherein: The limiting pin (2) is in clearance fit with the hole (5) of the web position.
3. The disc tooth marking fixture of claim 1, wherein: The material of the limiting pin (2) and the bottom plate (3) is aluminum or nylon.
4. The disc tooth marking fixture of claim 1, wherein: The central position protrusion of the bottom plate (3) is an integral structure.
Citation Information
Patent Citations
Laser marking tool with quick assembly and disassembly function
CN222078289U
Marking tool for automobile chassis workpiece
CN222154281U