Automatic steel stamping device for production line number of forged coupler yoke
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LIYUAN RAIL TRAFFIC EQUIP CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-07
AI Technical Summary
[0002]在锻造钩尾框的生产过程中，为满足质量追溯需求，需在成品表面打刻唯一流水号钢印，当前生产线上主要采用两类打钢印方式，一种是工人通过手持钢印锤敲击完成标记，该方式存在工件夹持不稳定的问题，钩尾框在冲击力作用下易偏移，导致钢印位置偏差或字迹模糊，需二次返工，另一种是半自动装置，虽采用机械式打印结构，但仍依赖人工定位与夹紧工件，其夹持装置无法自适应不同尺寸钩尾框，且夹持力缺乏实时控制，易造成工件表面压痕或夹持不牢
本实用新型通过卡块与位移块的滑槽配合，实现两位移块完全同步相向/相离运动，确保钩尾框受力均衡，避免工件偏移导致的钢印位置偏差；压力传感器集成于夹持杆与PLC控制器信号连接，实时监测夹持力，当压力达到预设阈值自动触发钢印机，防止工件压伤或夹持不牢；防滑胶垫附着于夹持杆内侧，增大与高温工件的摩擦力，避免锻造余温导致工件滑移，同时保护工件表面。
Smart Images
Figure CN224602573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forging technology, specifically to an automatic steel stamping device for the production serial number of forged hook tail frames. Background Technology
[0002] In the production process of forging hook tail frames, in order to meet the requirements of quality traceability, a unique serial number steel stamp needs to be engraved on the surface of the finished product. Currently, there are two main steel stamping methods used on the production line. One method is for workers to mark the workpiece by striking it with a steel stamp hammer. This method has the problem of unstable workpiece clamping. The hook tail frame is prone to displacement under impact, resulting in deviation of the steel stamp position or blurred characters, requiring rework. The other method is a semi-automatic device. Although it adopts a mechanical printing structure, it still relies on manual positioning and clamping of the workpiece. Its clamping device cannot adapt to different sizes of hook tail frames, and the clamping force lacks real-time control, which can easily cause indentations on the workpiece surface or insecure clamping. Summary of the Invention
[0003] The purpose of this invention is to provide an automatic steel stamping device for the production serial number of forged hook tail frames, which has the advantages of high clamping stability and controllable clamping force, and solves the problems in the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An automatic serial number stamping device for forged hook tail frames includes a base plate. A limiting component is installed above the base plate, and a hydraulic cylinder is installed on one side of the limiting component. The piston rod of the hydraulic cylinder passes through the limiting component and is fixed to an adjusting component inside the limiting component. The adjusting component has an isosceles trapezoidal structure, with locking blocks symmetrically fixed on its two inclined surfaces. Displacement blocks are installed on both sides of the adjusting component, and a sliding groove is opened on the side of the displacement block facing the adjusting component. The locking blocks pass into the sliding groove and engage with the sliding groove. A clamping rod is bolted to the side of the displacement block away from the hydraulic cylinder. A pressure sensor is installed on the inner wall of one of the clamping rods. A stamping machine is installed above the two clamping rods, and the stamping head of the stamping machine faces the center of the two clamping rods.
[0005] Preferably, the top of the displacement block is provided with a limiting strip, and the limiting member is provided with a limiting groove that cooperates with the limiting strip.
[0006] Preferably, the inclined surface of the adjusting member is in contact with the plane of the slide groove.
[0007] Preferably, the length of the groove is greater than the length of the card block.
[0008] Preferably, the inner wall of the clamping rod is provided with an anti-slip pad.
[0009] Preferably, the length of the clamping rod is greater than the width of the hook tail frame.
[0010] Preferably, the pressure sensor, hydraulic cylinder, and stamping machine are connected to the PLC controller via signal transmission.
[0011] Preferably, the limiting member is a vertical plate-shaped structure with a through hole in the middle.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the sliding groove cooperation between the locking block and the displacement block to achieve fully synchronized relative / separate movement of the two displacement blocks, ensuring balanced force on the hook tail frame and avoiding workpiece displacement leading to stamp position deviation. A pressure sensor is integrated into the clamping rod and connected to the PLC controller to monitor the clamping force in real time. When the pressure reaches a preset threshold, the stamping machine is automatically triggered to prevent workpiece damage or insecure clamping. Anti-slip rubber pads are attached to the inside of the clamping rod to increase friction with the high-temperature workpiece, preventing workpiece slippage caused by residual forging heat and protecting the workpiece surface. Attached Figure Description
[0013] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a diagram showing the clamping state of the clamping rod of this utility model; Figure 3 This is an isometric drawing of the adjusting component of this utility model; Figure 4 This is an isometric view of the displacement block and clamping rod of this utility model.
[0014] In the diagram: 1. Base plate; 2. Limiting component; 3. Hydraulic cylinder; 4. Adjusting component; 5. Locking block; 6. Displacement block; 7. Slide groove; 8. Inclined surface; 9. Limiting strip; 10. Clamping rod; 11. Anti-slip pad; 12. Pressure sensor; 13. Steel stamping machine; 14. Imprinting head. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] To address the problems of poor stamp position consistency and low production efficiency caused by the lack of a synchronous and stable clamping device that can adapt to high-temperature environments and automatically control the clamping force during steel stamping, the following technical solution is proposed. Please refer to [link / reference]. Figure 1-4 ; An automatic steel stamping device for serial number production of forged hook tail frames includes a base plate 1. A limiting member 2 is provided above the base plate 1. The limiting member 2 is a vertical plate-shaped structure with a through hole in the middle. A hydraulic cylinder 3 is provided on one side of the limiting member 2. The piston rod of the hydraulic cylinder 3 passes through the limiting member 2 and is fixed to an adjusting member 4 inside the limiting member 2. The adjusting member 4 is an isosceles trapezoidal structure. Two inclined surfaces 8 of the adjusting member 4 are symmetrically fixed with locking blocks 5. Displacement blocks 6 are provided on both sides of the adjusting member 4. The side of the displacement block 6 facing the adjusting member 4 has a sliding groove 7. The locking block 5 passes into the sliding groove 7 and engages with the sliding groove 7. The locking block 5 and the sliding groove 7 are slidably connected. The length of the sliding groove 7 is greater than the length of the locking block 5 to provide redundant stroke for the locking block 5 and prevent overload jamming. The inclined surface 8 is in contact with the plane where the sliding groove 7 is located.
[0017] The top of the displacement block 6 is provided with a limiting strip 9. A limiting groove is formed at the corresponding position of the limiting member 2 and the limiting strip 9, allowing the two displacement blocks 6 to move towards or away from each other within the limiting member 2. A clamping rod 10 is bolted to the side of the displacement block 6 away from the hydraulic cylinder 3. The length of the clamping rod 10 is greater than the width of the hook tail frame. An anti-slip pad 11 is provided on the inner wall of the clamping rod 10. The anti-slip pad 11 is made of high-temperature resistant silicone material, adapting to the residual heat environment of the forging workpiece while protecting the workpiece surface. A pressure sensor 12 is provided on the inner wall of one of the clamping rods 10. A stamping machine 13 is located above the two clamping rods 10, with the stamping head 14 at the bottom of the stamping machine 13 facing the center of the two clamping rods 10. It should be emphasized that the stamping machine 13 is existing technology and will not be elaborated upon here.
[0018] Pressure sensor 12, hydraulic cylinder 3 and stamping machine 13 are all connected to PLC controller signal. PLC controls the clamping force in real time through pressure sensor 12 in a closed loop to avoid workpiece deformation or slippage and ensure the accuracy of stamping position.
[0019] Specifically, the hook tail frame is placed between the two clamping rods 10. The PLC controller starts the hydraulic cylinder 3, pushing the adjusting component 4 forward. The inclined surface 8 of the adjusting component 4 drives the two displacement blocks 6 on both sides to slide towards each other along the limit groove through the locking block 5, which drives the clamping rods 10 to clamp the workpiece synchronously. The anti-slip rubber pad 11 increases the friction and prevents the workpiece from shifting. When the pressure sensor 12 detects that the clamping force reaches the PLC preset threshold, it sends a signal to trigger the steel stamping machine 13. The stamping head 14 of the steel stamping machine 13 presses down and engraves the serial number at the designated position on the hook tail frame. After the steel stamping is completed, the piston rod of the hydraulic cylinder 3 retracts, the adjusting component 4 moves backward and drives the displacement blocks 6 to move away from each other, the clamping rods 10 release the workpiece, and the finished product is removed manually or by a robot.
[0020] Working principle: The hook tail frame is placed between the two clamping rods 10. The PLC controller starts the hydraulic cylinder 3, which pushes the adjusting component 4 forward. The inclined surface 8 of the adjusting component 4 drives the two displacement blocks 6 on both sides to slide towards each other along the limit groove through the locking block 5, which drives the clamping rods 10 to clamp the workpiece synchronously. The anti-slip rubber pad 11 increases the friction and prevents the workpiece from shifting. When the pressure sensor 12 detects that the clamping force reaches the PLC preset threshold, it sends a signal to trigger the steel stamping machine 13. The stamping head 14 of the steel stamping machine 13 presses down and engraves the serial number at the designated position on the hook tail frame.
[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. An automatic stamping device for serial number production of forged hook tail frames, comprising a base plate (1), characterized in that, A limiting member (2) is provided above the base plate (1). A hydraulic cylinder (3) is provided on one side of the limiting member (2). The piston rod of the hydraulic cylinder (3) passes through the limiting member (2) and is fixed to the adjusting member (4) inside the limiting member (2). The adjusting member (4) has an isosceles trapezoidal structure, and a locking block (5) is symmetrically fixed on its two inclined surfaces (8). Displacement blocks (6) are provided on both sides of the adjusting member (4). The displacement blocks (6) face the side of the adjusting member (4). A sliding groove (7) is provided, and the locking block (5) is inserted into the sliding groove (7) and engaged with the sliding groove (7); a clamping rod (10) is bolted to the side of the displacement block (6) away from the hydraulic cylinder (3), and a pressure sensor (12) is provided on the inner wall of one of the clamping rods (10). A steel stamping machine (13) is provided above the two clamping rods (10), and the stamping head (14) of the steel stamping machine (13) faces the center of the two clamping rods (10).
2. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 1, characterized in that, The top of the displacement block (6) is provided with a limiting strip (9), and the limiting member (2) is provided with a limiting groove that cooperates with the limiting strip (9).
3. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 2, characterized in that, The inclined surface (8) of the adjusting component (4) is in contact with the plane of the sliding groove (7).
4. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 3, characterized in that, The length of the slide (7) is greater than the length of the block (5).
5. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 4, characterized in that, The inner wall of the clamping rod (10) is provided with an anti-slip pad (11).
6. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 5, characterized in that, The length of the clamping rod (10) is greater than the width of the hook tail frame.
7. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 6, characterized in that, The pressure sensor (12), hydraulic cylinder (3), and stamping machine (13) are connected to the PLC controller via signals.
8. The automatic stamping device for production serial numbers of forged hook tail frames according to claim 7, characterized in that, The limiting member (2) is a vertical plate-shaped structure with a through hole in the middle.