Hot-state automatic marking machine and its application to the outer rim of train wheel

Abstract

The utility model discloses a kind of hot automatic marking machine and its application in the outer rim of train wheel, it is related to marking machine technical field.The device, comprising: shell;Driving device, set in the shell;First workstation, with the output end of the driving device is connected;Marking die, with the bottom surface of the first workstation is connected;Second workstation, with the first workstation is oppositely set on the shell;Wheel positioning ring, set in the center of the second workstation;Jacking device, set in the shell close to the second workstation one side, and its output end is located on the center extension line of the wheel positioning ring towards the first workstation one side.The utility model, solve the problem that the marking effect of current marking machine is poor, typewriting depth is uncontrollable and the problem of low marking efficiency.

Description

Technical Field

[0001] This utility model relates to the field of marking machine technology, and in particular to a hot automatic marking machine and its application to the outer rim of a train wheel. Background Technology

[0002] In recent years, with the technological upgrading of the steel industry, the manufacturing process of wheels has shifted from traditional casting and forging to rolling. Compared with traditional processes, rolling has advantages in material utilization, production efficiency, and product performance. Therefore, rolled wheels are widely used in automobiles, trains, high-speed trains, subways, aerospace, and other fields, thereby further driving the development of the steel industry.

[0003] Furthermore, with the trend of green manufacturing in recent years, rolled wheels have the advantages of less waste and lower energy consumption compared with traditional processes. This can help the traditional steel industry meet environmental regulations, improve the industry's image, and meet the requirements of green, low-carbon and sustainable development.

[0004] Currently, the marking methods commonly used by domestic wheel manufacturers are cold marking and hot marking. Cold marking involves marking the wheel at room temperature after all heat treatment and machining processes have been completed. Commonly used methods include pneumatic needle marking and laser marking.

[0005] However, cold marking has obvious drawbacks: First, marking on the hard, cold surface of a wheel requires a great deal of energy or power, resulting in high equipment wear; second, to avoid damaging the integrity of the finished wheel surface, the marking depth is usually shallow, and the marking is very easy to disappear due to normal wear and tear on the wheel tread during subsequent use, which cannot meet the requirements of full life cycle traceability; if the marking depth is forcibly increased, it may cause micro-cracks in the wheel, affecting driving safety.

[0006] Hot marking refers to marking the wheel in the hot stage after it has been forged and rolled but before the final finishing process. It utilizes the residual heat of the wheel, and the material has good plasticity and low hardness, making marking easier.

[0007] However, existing hot marking methods largely rely on manual operation or semi-automated equipment, which presents the following problems: low efficiency, slow marking speed, and difficulty in matching the pace of modern wheel production lines; unstable marking quality, as manual operation cannot guarantee the uniformity of each strike, resulting in inconsistent character depth, poor clarity, and even incomplete characters; outdated serial number management, requiring manual intervention to change the font or make manual adjustments for serial number changes, easily leading to problems such as skipped numbers, incorrect numbers, and duplicate numbers, seriously affecting the accuracy of the traceability system; low automation, high labor intensity, harsh working environment, and safety hazards. Currently, no effective solutions have been proposed to address these problems. Utility Model Content

[0008] Purpose of the utility model: To provide a hot automatic marking machine to at least solve one of the problems existing in the prior art.

[0009] Technical solution: A hot-state automatic marking machine, comprising: case; The drive unit is disposed within the housing; The first worktable is connected to the output end of the drive device; The marking mold is connected to the bottom surface of the first workbench; The second workbench is disposed on the housing opposite to the first workbench; A wheel positioning ring is disposed at the center of the second worktable; and The lifting device is located inside the housing near the side of the second worktable, and its output end is located on the center extension line of the wheel positioning ring facing the side of the first worktable. The driving device drives the marking mold located on the first worktable to move directionally to the second worktable, so that the marking mold acts on the wheel set in the wheel positioning ring to complete the hot automatic marking.

[0010] Preferably, the driving device includes a first driving component connected to the housing, the first driving component being connected to the first worktable via a plurality of guide rods to drive the first worktable to move vertically up and down.

[0011] Preferably, the marking mold includes a fixed mold connected to the lower surface of the first workbench, and the lower surface of the first workbench is also provided with an automatic number changing machine adjacent to the fixed mold.

[0012] Preferably, the automatic number changing machine includes: a second drive component, the output end of the second drive component is provided with a marking component, and the second drive component is also provided with a distance detection sensor for detecting the height of the wheel to be marked from the marking component.

[0013] Preferably, there are multiple fixed molds, which are arranged around the circumference of the wheel rim surface.

[0014] Preferably, an electrical control box is also provided inside the housing, and the electrical control box is electrically connected to the drive device, the marking mold and the lifting device respectively; The electrical control box sends a first control signal to control the lifting device to lift the receiving wheel workpiece into the wheel positioning ring, and sends a second control signal and a third control signal in sequence to control the drive device to move to the designated position and to control the marking mold to mark to a preset depth.

[0015] Preferably, the lifting device is installed at the center of the second worktable to lift the wheel workpiece, so that the robot arm can put and pick up the material. The wheel positioning ring is used to position the wheel workpiece coaxially with the marking mold.

[0016] Preferably, the second worktable is mounted on the lower pad of the housing and can be adjusted along the throat depth of the press to mark wheels of different sizes.

[0017] Preferably, the second worktable is provided with several limit drive components around its perimeter.

[0018] To achieve the above objectives, according to another aspect of this application, an outer rim of a train wheel to which this application is applied is also provided.

[0019] The outer rim of the train wheel according to this application includes the aforementioned hot automatic marking machine.

[0020] Beneficial Effects: In this embodiment, a hot automatic marking method is adopted. The marking mold located on the first worktable is driven by the driving device to move directionally towards the second worktable, so that the marking mold acts on the wheel set in the wheel positioning ring to complete the hot automatic marking, achieving the purpose of efficient automatic marking. This achieves the technical effects of improving the degree of automation, marking efficiency, and marking quality, and solves the obvious drawbacks of cold marking: First, marking on the hard, cold surface of a wheel requires a lot of energy or power, resulting in high equipment wear; second, in order to avoid damaging the integrity of the finished wheel surface, the marking depth is usually shallow, and the marking is easily lost due to normal wear and tear of the wheel tread during subsequent use. The current system cannot meet the requirements for full lifecycle traceability. Forcibly increasing the marking depth may cause microscopic cracks in the wheels, affecting driving safety. Furthermore, existing hot marking methods rely heavily on manual operation or semi-automated equipment, resulting in the following problems: low efficiency, slow marking speed, and difficulty matching the pace of modern wheel production lines; unstable marking quality, as manual operation cannot guarantee uniform striking force, leading to inconsistent character depth, poor clarity, and even incomplete characters; outdated serial number management, requiring manual intervention to change the font or adjust the serial number, easily causing management chaos such as skipped numbers, incorrect numbers, and duplicate numbers, seriously affecting the accuracy of the traceability system; low automation, high labor intensity, harsh working environment, and potential safety hazards. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the hot-state automatic marking machine of this utility model; Figure 2This is a cross-sectional view of the hot-state automatic marking machine of this utility model; and Figure 3 This is a schematic diagram of the marking mold structure of the hot-state automatic marking machine of this utility model.

[0022] The attached figures are labeled as follows: 10. Shell; 20. Drive unit; 201. First drive component; 202. Guide rod; 30. First workbench; 40. Marking mold; 401. Fixed mold; 402. Automatic number changing machine; 4021. Second drive component; 4022. Marking component; 50. Second workbench; 60. Wheel locating rings; 70. Lifting device; 80. Limit drive components; 90. Wheel components. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linked," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-3 As shown, this application relates to a hot-state automatic marking machine. Figure 1-2 As shown, the hot-state automatic marking machine includes a housing 10. The housing 10 serves as the external support structure for the entire marking machine, providing not only mechanical strength and stability but also protection to prevent operators from contacting high-temperature components or moving parts. It also isolates dust and noise, improving equipment safety. Preferably, the housing 10 is C-shaped, ensuring good placement and assembly for easy workpiece insertion.

[0028] A drive unit 20 is disposed within the housing 10. The drive unit 20 refers to the power source of the marking machine, typically employing a hydraulic cylinder, pneumatic cylinder, or servo motor to provide linear or rotary motion. The output end of the drive unit 20 is directly connected to the first worktable 30, and is used to drive the first worktable 30 and the marking mold 40 on it to perform directional movement.

[0029] The first worktable 30 is connected to the output end of the drive device 20. The first worktable 30 serves as a support platform for the marking mold 40 and moves with the drive device 20. Its bottom surface is connected to the marking mold 40; therefore, when the drive device 20 is activated, the first worktable 30 drives the marking mold 40 to move towards the second worktable 50, thus achieving the marking action.

[0030] The marking mold 40 is connected to the bottom surface of the first worktable 30. The marking mold 40 is a tool that directly performs marking, and is usually made of high-strength metal (such as mold steel) with reversed characters or patterns engraved on its surface. When in contact with a hot wheel, it forms a permanent mark on the wheel surface through pressure and heat.

[0031] The second workbench 50 is disposed on the housing 10 opposite to the first workbench 30. The second workbench 50 is the target platform for marking and is disposed opposite to the first workbench 30 to support the wheel positioning ring 60 and the wheel. Its design usually takes into account heat resistance and wear resistance to ensure long-term stable operation in high-temperature environments.

[0032] It is placed on the housing 10 and opposite to the first worktable 30 to form a marking station.

[0033] The wheel positioning ring 60 is located at the center of the second worktable 50. The wheel positioning ring 60 is located at the center of the second worktable 50 and is used to accurately fix and position the wheel. Its inner diameter matches the outer edge of the wheel to ensure that the wheel will not shift during the marking process and improve the marking accuracy.

[0034] The wheel positioning ring 60 is located at the center of the second worktable 50 and aligned with the output end of the lifting device 70 to ensure that the wheel is in the correct position when marking; and its output end is coaxial with the center of the wheel positioning ring 60 to ensure that the lifting force acts on the center of the wheel and avoids uneven load.

[0035] The lifting device 70 is disposed in the housing 10 near the side of the second worktable 50, and its output end is located on the center extension line of the wheel positioning ring 60 facing the side of the first worktable 30; the lifting device 70 (such as a cylinder or hydraulic lifter) is disposed in the drive device 20 near the side of the second worktable 50, and its output end is located on the center extension line of the wheel positioning ring 60.

[0036] Specifically, during operation, the robotic arm places the wheel workpiece 90 onto the lifting device 70. The lifting device 70 then descends, placing the wheel workpiece 90 onto the second worktable 50. Simultaneously, the wheel positioning ring 60 centers the wheel. The first worktable 30 drives the marking mold 40 downward until it contacts the wheel workpiece 90 and travels a certain depth to complete the one-time marking function on the rim surface.

[0037] After marking is completed, the first workbench 30 is reset upwards, the serial number of the numbering machine is automatically changed by +1, the lifting device 70 lifts the wheel workpiece 90, and the robot arm unloads the wheel and sends it to the next process, and the marking machine enters the next work cycle.

[0038] The driving device 20 drives the marking mold 40, located on the first worktable 30, to move directionally towards the second worktable 50, so that the marking mold 40 acts on the wheel set in the wheel positioning ring 60 to complete hot automatic marking. This achieves good automatic marking results.

[0039] The marking machine of this application features one-time forming of text on the hot rim surface, resulting in high marking efficiency; the wheel serial number has an automatic character replacement function, with the serial number automatically incrementing after each wheel is marked; the marking depth is adjustable, with a maximum marking depth of 7mm, and the marked text is still retained after the wheel is finished; a high-rigidity C-type hydraulic press is used, resulting in uniform marking depth distribution and controllable marking depth.

[0040] As can be seen from the above description, this application achieves the following technical effects: In this embodiment, a hot-state automatic marking method is adopted. The marking mold 40 located on the first worktable 30 is driven by the driving device 20 to move directionally towards the second worktable 50, so that the marking mold 40 acts on the wheel set in the wheel positioning ring 60 to complete the hot-state automatic marking, achieving the purpose of efficient automatic marking. This achieves the technical effects of improving the degree of automation, marking efficiency, and marking quality, and solves the obvious drawbacks of cold-state marking: First, marking on the hard, cold surface of a wheel requires a lot of energy or power, resulting in high equipment wear; second, in order to avoid damaging the integrity of the finished wheel surface, the marking depth is usually shallow, and the marking is easily damaged by the normal wear of the wheel tread during subsequent use. The current system cannot meet the requirements of full lifecycle traceability; forcibly increasing the marking depth may cause micro-cracks in the wheels, affecting driving safety; and existing hot marking relies heavily on manual operation or semi-automated equipment, which has the following problems: low efficiency, slow marking speed, and difficulty in matching the pace of modern wheel production lines; unstable marking quality, as manual operation cannot guarantee the uniformity of each strike, resulting in inconsistent marking character depth, poor clarity, and even incomplete characters; outdated serial number management, requiring manual intervention to change the font or adjust the serial number, which easily leads to management chaos such as skipped numbers, wrong numbers, and duplicate numbers, seriously affecting the accuracy of the traceability system; low automation, high labor intensity, harsh working environment, and technical problems that pose safety hazards.

[0041] Furthermore, the driving device 20 includes a first driving component 201 connected to the housing 10. The first driving component 201 is connected to the first worktable 30 via several guide rods 202 to drive the first worktable 30 to move vertically up and down. It is understood that the first driving component 201 is typically a hydraulic cylinder, servo electric cylinder, or pneumatic cylinder, serving as the core power source; the guide rods 202 are typically surface-hardened precision rods or linear guides, connected to the first worktable 30 via linear bearings to form a stable kinematic pair. This achieves high precision and stability. The guide rods 202 effectively resist lateral forces or off-center load moments generated during marking, ensuring that the first worktable 30 and the marking mold 40 move strictly in the vertical direction, eliminating swaying or tilting.

[0042] like Figure 3As shown, the marking mold 40 includes a fixed mold 401 connected to the lower surface of the first workbench 30, and an automatic number-changing machine 402 adjacent to the fixed mold 401 is also provided on the lower surface of the first workbench 30. It can be understood that the automatic number-changing machine 402 refers to a marking device that can automatically change characters, typically used for imprinting variable information such as production serial numbers, dates, batch numbers, etc. It enables the integrity and flexibility of information marking, achieving one-time, synchronous marking of fixed and variable information; it eliminates the need to change molds or move to another workstation to mark variable information after marking fixed markings, greatly improving production efficiency.

[0043] It should be noted that the 402 automatic number changing machine can manually set the initial position code, and the serial number will automatically increment by 1 after each wheel is printed.

[0044] like Figure 2 As shown, the automatic number changing machine 402 includes: a second drive component 4021, with a marking component 4022 disposed at the output end of the second drive component 4021, and a distance detection sensor disposed within the second drive component 4021 for detecting the height of the wheel to be marked from the marking component 4022. It can be understood that the sensor can detect the position of the wheel surface in real time, and the system can dynamically adjust the thrust or stroke of the second drive component 4021 based on this data to ensure that the number changing machine applies appropriate pressure in the variable information area, avoiding marking too deep (potentially damaging the wheel) or too shallow (unrecognizable) due to slight differences in wheel position. This improves marking quality and pass rate. Through closed-loop control, it effectively compensates for inconsistencies between the system and the workpiece, making the marking quality of variable information stable and reliable, and significantly reducing the scrap rate.

[0045] Furthermore, there are multiple fixing molds 401 arranged circumferentially along the wheel rim surface. This ensures a good fixing effect, thereby guaranteeing accurate marking results.

[0046] Furthermore, an electrical control box is also provided inside the housing 10, and the electrical control box is electrically connected to the drive device 20, the marking mold 40 and the lifting device 70 respectively; The electrical control box sends a first control signal to control the lifting device 70 to lift the receiving wheel workpiece 90 into the wheel positioning ring 60, and then sends a second and a third control signal to control the drive device 20 to move to a designated position and to control the marking mold 40 to mark to a preset depth. This ensures good electrical connection and control, thereby guaranteeing effective coordinated control.

[0047] Furthermore, the lifting device 70 is installed at the center of the second workbench 50 to lift the wheel workpiece 90 so that the robot arm can put and pick up the material. The wheel positioning ring 60 is used to position the wheel workpiece 90 coaxially with the marking mold 40. It is understood that the lifting device 70 is located at the center of the second worktable 50, ensuring uniform lifting force and good coordination with the robot's material feeding / picking actions, forming a smooth automated production line node. The positioning ring ensures that the wheel and the marking mold 40 are strictly coaxial, achieving a uniform circumferential marking effect.

[0048] Furthermore, the second worktable 50 is mounted on the lower pad of the housing 10 and can be adjusted along the throat depth of the press to mark wheels of different sizes. Understandably, this enables good assembly results, thus providing a foundation and guarantee for accurate marking.

[0049] Furthermore, several limiting drive components 80 are provided around the second worktable 50. This allows for effective limiting and fixing of the second worktable 50, while also enabling position adjustment, thereby ensuring precise positioning.

[0050] This application also relates to the outer rim of a train wheel, including the aforementioned hot-state automatic marking machine.

[0051] This application also has the following beneficial effects: 1. Automation and efficiency improvement: Through the coordinated operation of the drive unit 20 and the lifting unit 70, the marking process is fully automated, reducing manual operation and significantly improving production efficiency. It is particularly suitable for high-speed production lines, capable of processing a large number of wheels per hour, thus reducing labor costs.

[0052] 2. Marking accuracy and consistency: The combination of wheel positioning ring 60 and lifting device 70 ensures accurate positioning and stable support of the wheel during the marking process; the lifting device 70 acts on the center of the wheel, so that the marking pressure is evenly distributed, avoiding marking distortion or uneven depth, and improving the marking quality.

[0053] 3. Compact structure and optimized space: All components are integrated into the housing 10, and the drive unit 20 and the second workbench 50 are both set on the same base, forming a compact layout, reducing the equipment's footprint and facilitating installation and maintenance.

[0054] 4. Safety and ease of maintenance: The housing 10 provides physical isolation to prevent operators from coming into contact with high-temperature or moving parts, reducing safety risks; at the same time, the modular design (such as the replaceable marking mold 40) makes maintenance and replacement of parts more convenient and reduces downtime.

[0055] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A hot-state automatic marking machine, characterized in that, include: Shell (10); A drive unit (20) is disposed within the housing (10); The first worktable (30) is connected to the output end of the drive device (20); The marking mold (40) is connected to the bottom surface of the first workbench (30); The second workbench (50) is disposed on the housing (10) opposite to the first workbench (30); A wheel positioning ring (60) is disposed at the center of the second worktable (50); and The lifting device (70) is located in the housing (10) on the side near the second worktable (50), and its output end is located on the center extension line of the wheel positioning ring (60) on the side facing the first worktable (30); The driving device (20) drives the marking mold (40) located on the first worktable (30) to move in a direction to the second worktable (50), so that the marking mold (40) acts on the wheel set in the wheel positioning ring (60) to complete the hot automatic marking.

2. The hot-state automatic marking machine according to claim 1, characterized in that, The driving device (20) includes a first driving component (201) connected to the housing (10). The first driving component (201) is connected to the first worktable (30) through a plurality of guide rods (202) to drive the first worktable (30) to move vertically up and down.

3. The hot-state automatic marking machine according to claim 1, characterized in that, The marking mold (40) includes a fixed mold (401) connected to the lower surface of the first workbench (30), and an automatic number changing machine (402) adjacent to the fixed mold (401) is also provided on the lower surface of the first workbench (30).

4. The hot-state automatic marking machine according to claim 3, characterized in that, The automatic number changing machine (402) includes: a second drive component (4021), the output end of the second drive component (4021) is provided with a marking component (4022), and the second drive component (4021) is also provided with a distance detection sensor for detecting the height of the wheel to be marked from the marking component (4022).

5. The hot-state automatic marking machine according to claim 4, characterized in that, The number of fixed molds (401) is multiple, and the multiple fixed molds (401) are arranged around the circumference of the wheel rim surface.

6. The hot-state automatic marking machine according to claim 4, characterized in that, An electrical control box is also provided inside the housing (10), and the electrical control box is electrically connected to the drive device (20), the marking mold (40) and the lifting device (70) respectively; The electrical control box sends a first control signal to control the lifting device (70) to lift the receiving wheel workpiece (90) into the wheel positioning ring (60), and sends a second control signal and a third control signal in sequence to control the drive device (20) to move to the designated position and to control the marking mold (40) to mark to the preset depth.

7. The hot-state automatic marking machine according to claim 1, characterized in that, The lifting device (70) is installed at the center of the second workbench (50) to lift the wheel workpiece (90) so that the robot can put and pick up the material. The wheel positioning ring (60) is used to position the wheel workpiece (90) and the marking mold (40) coaxially.

8. The hot-state automatic marking machine according to claim 1, characterized in that, The second worktable (50) is mounted on the lower pad of the housing (10) and can be adjusted along the throat depth of the press to mark wheels of different sizes.

9. The hot-state automatic marking machine according to claim 1, characterized in that, The second worktable (50) is provided with several limit drive components (80) around its perimeter.

10. The outer rim of a train wheel, characterized in that, Including the hot automatic marking machine as described in any one of claims 1-9.

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