A peeling device for bearing steel wire rods

Abstract

The utility model discloses a kind of stripping devices for bearing steel wire rod, the cutter head of centerless machine tool is equipped with discharge pipe between discharge wheel group, discharge pipe both ends even open structure, and with the coaxial line setting of cutter head, discharge pipe both ends are detachably installed with the limiting piece of annular structure, limiting piece inner diameter is compatible with wire diameter, discharge pipe is sequentially provided with: caliper mechanism along discharge pipe axis, and according to wire advancing direction Cooling liquid spray head, defect detection mechanism and lubricant spray head, discharge pipe lower part is also equipped with the liquid discharge pipe for discharging fluid;The utility model realizes the integration of peeling, on-line detection, instant cooling and lubrication protection collaborative operation, not only can real-time monitoring and feedback wire diameter and surface quality, fundamentally eliminate the generation of batch defect, also through timely cooling guarantee material performance, and complete lubrication in best state to optimize subsequent processing condition.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel wire processing technology, and in particular to a stripping device for bearing steel wire. Background Technology

[0002] As a fundamental material for manufacturing key components such as bearing rings and rolling elements, the surface quality and dimensional accuracy of bearing steel wire directly determine the fatigue life, wear resistance, and reliability of the final bearing product. Currently, centerless machine tools are widely used to peel the hot-rolled bearing steel wire to remove surface defects such as oxide scale, decarburized layer, and cracks.

[0003] However, existing peeling equipment and processes have significant shortcomings, mainly in the following aspects: 1. After the stripping process is completed, the diameter and surface quality of the wire are usually inspected offline and by sampling. This method has serious lag and cannot detect dimensional deviations (such as diameter fluctuations and excessive ovality) or surface defects (such as scratches, vibration marks, and microcracks) caused by tool wear or equipment vibration in real time. Once a problem is discovered, it often results in a large number of scraps, leading to high production costs. 2. The high temperature generated during the stripping process can affect the metallographic structure of the wire surface and even cause softening. Existing equipment lacks a timely and effective online cooling system, which cannot quickly suppress the heat-affected zone. 3. After stripping, wire often needs to be lubricated. However, the existing lubrication process is carried out separately from stripping. When applying lubricant, the wire surface may be contaminated or oxidized, affecting the adhesion of the lubricant. As a result, it cannot provide ideal lubrication protection for subsequent precision forming processes such as cold heading and cold extrusion, which may aggravate mold wear. 4. Due to the lack of integrated real-time monitoring methods, the production process relies heavily on the experience of operators, making it impossible to achieve precise digital control and preventive maintenance, and making it difficult to guarantee product quality stability. 5. After stripping, the wire needs to undergo multiple subsequent processes such as cooling, cleaning, testing, and lubrication. These processes are often completed on different equipment or workstations, which not only increases the floor space of the production line and the material transfer time, but also easily causes secondary scratches on the surface of the wire during the transfer process. Therefore, there is an urgent need for a high-efficiency, high-precision stripping device that integrates stripping, online detection, instant cooling and lubrication to achieve full control over the quality of bearing steel wire. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model discloses a stripping device for bearing steel wire. This utility model realizes the integrated collaborative operation of stripping, online detection, instant cooling and lubrication protection. It can not only monitor and provide feedback on wire diameter and surface quality in real time, fundamentally eliminating the generation of batch defects, but also ensure material performance through timely cooling and complete lubrication in the best condition to optimize subsequent processing conditions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A stripping device for bearing steel wire includes a centerless machine tool for stripping bearing steel wire, and further includes: The discharge pipe is located between the cutter head and the discharge wheel assembly of the centerless machine tool. The discharge pipe has an evenly open structure at both ends and is set on the same axis as the cutter head. The limiting component has a ring structure and is detachably installed at both ends of the discharge pipe. The inner diameter of the limiting component is adapted to the diameter of the wire and is used to radially limit the wire passing through the discharge pipe. The discharge pipe contains, along its axis and in the direction of wire travel, the following components are arranged sequentially: A diameter measuring mechanism is used to detect the diameter of wires in real time. Coolant nozzle, externally connected to coolant and pump body, used to cool and lower the temperature of wire; Defect detection agencies are used to detect surface defects in wires in real time. Lubricant nozzle, externally connected to lubricant and pump body, used for lubricant spraying onto wires; The lower part of the discharge pipe is also equipped with a drain pipe for discharging fluid.

[0006] Furthermore, the limiting element includes: The mounting tube is detachably installed inside the opening at the end of the discharge pipe and is coaxially arranged with the discharge pipe; A limiting ring is located at the end of the discharge pipe and connected to the installation pipe. The limiting ring is coaxial with the discharge pipe and its inner diameter is adapted to the diameter of the wire.

[0007] Furthermore, the end of the discharge pipe is provided with a mounting hole, and the wall of the installation pipe is provided with a threaded hole that corresponds to and fits the mounting hole. The corresponding mounting hole and threaded hole are provided with mounting screws.

[0008] Furthermore, the diameter measuring mechanism includes: A laser emitter, located on the inner wall of the discharge tube, is used to emit a diameter-measuring laser onto the wire. The pattern receiver is located on the inner wall of the discharge pipe and works in conjunction with the laser emitter to receive diffraction patterns. The signal processor, integrated into the CNC system of a centerless machine tool, is used to receive and analyze diffraction patterns and calculate diameter values.

[0009] Furthermore, defect detection agencies include: A line scan camera, installed on the inner wall of the discharge tube, is used to capture images of the wire. An LED light source is installed on the inner wall of the discharge pipe to provide illumination; An image processing industrial control computer, integrated into the CNC system of a centerless machine tool, is used to receive wire images and identify wire defects.

[0010] Furthermore, both the coolant nozzle and the lubricant nozzle are detachably fitted with annular seals on both sides of the axial direction, which are used to isolate the fluid and scrape off excess fluid from the wire surface.

[0011] Furthermore, there are at least two drain pipes, which are respectively located at the lower part of the discharge pipe between the seals on both sides of the coolant nozzle and the lubricant nozzle along the axial direction.

[0012] Furthermore, the seal includes: The mounting ring is detachably installed inside the discharge pipe and is coaxially arranged with the discharge pipe. An annular inner pad is located on the inner wall of the mounting ring. The wire passes through the annular inner pad and makes interference contact with it.

[0013] Furthermore, an opening is formed in the middle of the annular inner pad. The diameter of the opening gradually decreases along the direction of wire travel. The diameter of the opening facing the cutter head is larger than the diameter of the wire, while the diameter of the opening facing the discharge wheel assembly is smaller than the diameter of the wire.

[0014] Furthermore, the inner wall of the discharge pipe is provided with an annular groove for locking and installing the installation ring, and the outer side of the discharge pipe is provided with an opening that corresponds to and passes through the annular groove and is used for taking and putting in the installation ring. A cover plate that is adapted to the opening is detachably installed in the opening, and the inner surface of the cover plate is provided with a groove that is adapted to engage with the installation ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are: By integrating the diameter measuring mechanism and the defect detection mechanism into the discharge pipe, 100% real-time, online, and full inspection of the diameter and surface quality of the stripped wire is achieved. Once dimensional deviations or surface defects are detected, the system can immediately alarm or automatically stop the machine, fundamentally avoiding the generation of batch scrap and realizing the transformation from "post-inspection" to "pre-inspection", which greatly improves the level and efficiency of quality control. By integrating coolant and lubricant nozzles into the same discharge pipe according to the process logic, key processes such as peeling, cooling and cleaning, quality inspection, and lubrication protection can be completed in one go on a continuous production line. This not only effectively suppresses the adverse effects of cutting heat on the surface properties of materials and prevents the decrease in hardness caused by high-temperature tempering, but also provides lubrication protection for the wire. Furthermore, it greatly shortens the production process, reduces equipment footprint and material transfer, avoids secondary damage that may be caused by inter-process transfer, and significantly improves production efficiency. By setting up a discharge pipe and limiting components, not only is it ensured that the wire is always coaxial with the equipment, effectively suppressing vibration, but wire contamination can also be avoided, thereby achieving higher dimensional accuracy and surface finish. By setting up seals and drain pipes, different functional areas are effectively isolated, preventing coolant and lubricant from interfering with the testing mechanism, and realizing centralized collection and discharge of waste liquid; This invention integrates a diameter measuring mechanism, a defect detection mechanism, a coolant nozzle, and a lubricant nozzle into the discharge pipe in a sequential process order. This achieves integrated collaborative operation of stripping, online detection, instant cooling, and lubrication protection. It can not only monitor and provide feedback on wire diameter and surface quality in real time, fundamentally eliminating the generation of batch defects, but also ensure material performance through timely cooling and complete lubrication in the best condition to optimize subsequent processing conditions. Thus, it significantly improves the consistency of stripping quality and production efficiency of bearing steel wire while realizing intelligent closed-loop control of the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the discharge pipe structure of this utility model; Figure 3 This is a schematic diagram of the diameter measuring mechanism of this utility model; Figure 4 This is a schematic diagram of the defect detection mechanism of this utility model; Figure 5 This is a schematic diagram of the assembly of the sealing element and the discharge pipe of this utility model; Figure 6 This is a schematic diagram of the limiting component structure of this utility model.

[0017] In the diagram: 1. Centerless machine tool; 1.1. CNC system; 1.2. Cutter head; 1.3. Output wheel assembly; 2. Discharge pipe; 2.1. Drain pipe; 2.2. Support rod; 2.3. Annular groove; 2.4. Opening; 2.5. Cover plate; 2.5.1. Slot; 2.6. Mounting hole; 3. Limiting components; 3.1. Mounting tube; 3.1.1. Threaded hole; 3.2. Limiting ring; 3.3. Mounting screw; 4. Diameter measuring mechanism; 4.1. Laser emitter; 4.2. Pattern receiver; 4.3. Signal processor; 5. Seals; 5.1. Mounting ring; 5.2. Annular inner gasket; 5.2.1. Through port; 6. Coolant nozzle; 7. Defect detection equipment; 7.1 Line scan camera; 7.2 LED light source; 7.3 Image processing industrial computer; 8. Lubricant nozzle. Detailed Implementation

[0018] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0019] Please refer to the instruction manual appendix. Figure 1-6 This utility model provides a technical solution: Example 1: A stripping device for bearing steel wire includes a centerless machine tool 1 for stripping bearing steel wire. A discharge pipe 2 is provided between the cutter head 1.2 and the discharge wheel assembly 1.3 of the centerless machine tool 1. The discharge pipe 2 is horizontally supported by a support rod 2.2. The discharge pipe 2 has uniformly open ends and is coaxially arranged with the cutter head 1.2. Both ends of the discharge pipe 2 are detachably equipped with a limiting member 3, which has an annular structure and is used to radially limit the wire passing through the discharge pipe 2. Specifically, the limiting member 3 includes an mounting tube 3.1 and a limiting ring. 3.2 The mounting tube 3.1 is embedded in the discharge tube 2. The limiting ring 3.2 is located at the end of the discharge tube 2 and connected to the mounting tube 3.1. The mounting tube 3.1, the limiting ring 3.2 and the discharge tube 2 are arranged coaxially. The inner diameter of the limiting ring 3.2 is adapted to the diameter of the wire. In order to realize the detachable installation of the limiting component 3, the end of the discharge tube 2 is provided with a mounting hole 2.6. The wall of the mounting tube 3.1 is provided with a threaded hole 3.1.1 that is adapted to the mounting hole 2.6. The mounting hole 2.6 and the threaded hole 3.1.1 are provided with mounting screws 3.3. Inside the discharge pipe 2, along the axis of the discharge pipe 2 and in the direction of wire travel, there are a diameter measuring mechanism 4 for real-time detection of wire diameter, a coolant nozzle 6 connected to the external coolant and pump body for cooling the wire, a defect detection mechanism 7 for real-time detection of surface defects of the wire, and a lubricant nozzle 8 connected to the external lubricant and pump body for lubricant spraying onto the wire. Specifically, the diameter measuring mechanism 4 includes a laser emitter 4.1, a pattern receiver 4.2, and a signal processor 4.3. The laser emitter 4.1 is located on the inner wall of the discharge tube 2 and is used to emit a diameter measuring laser to the wire. The pattern receiver 4.2 is located on the inner wall of the discharge tube 2 and works in conjunction with the laser emitter 4.1 to receive the diffraction pattern. In order to achieve accurate diameter measurement of the wire, an optical lens that works in conjunction with the laser emitter 4.1 is also provided in the discharge tube 2 to expand the laser beam and collimate it into a perfect parallel beam so that it can span the entire measurement range. The signal processor 4.3 is integrated into the CNC system 1.1 of the centerless machine tool 1 and is used to receive and analyze the diffraction pattern and calculate the diameter value, which is then displayed on the display screen of the CNC system 1.1. The diameter measuring mechanism 4 can measure the diameter of the stripped wire in real time and continuously. Once the diameter is detected to be out of tolerance (usually due to tool wear), an alarm is immediately sent to the CNC system 1.1, and the machine may even stop automatically. When the wire comes out of the stripping disc, the surface temperature is high due to plastic deformation and friction. In order to prevent the bearing steel wire from tempering due to overheating and causing a decrease in surface hardness, the coolant nozzle 6 is connected to the coolant and the pump body. The coolant nozzle 6 sprays coolant onto the wire, which can not only cool the wire, but also wash away the micro-metal debris attached to the surface of the wire. The defect detection mechanism 7 includes a line scan camera 7.1, an LED light source 7.2, and an image processing industrial control computer 7.3. The line scan camera 7.1 is located on the inner wall of the discharge tube 2 and is used to capture images of the wire. The LED light source 7.2 is located on one side of the line scan camera 7.1 and is used to provide illumination. In order to achieve full-circumference imaging of the wire, an optical prism can also be set in the discharge tube 2 for auxiliary imaging. The image processing industrial control computer 7.3 is integrated into the CNC system 1.1 of the centerless machine tool 1 and is used to receive wire images and identify defect types such as scratches, cracks, holes, and vibration marks through algorithms, and issue alarms so that workers can promptly detect surface defects caused by tool chipping, vibration, or guide wheel problems, and avoid the generation of large quantities of scrap. When the wire enters the next process (such as cold heading or cold extrusion), in order to effectively isolate the workpiece from the mold, reduce friction, reduce forming force, protect the mold, and improve the surface quality of the product, the lubricant nozzle 8 is connected to a lubricant and a pump body. The lubricant nozzle 8 is used to spray the lubricant onto the wire, so that a firm and continuous protective film is formed on the surface of the wire. During the spraying of coolant and lubricant, excess fluid will drip into the discharge pipe 2. In order to facilitate the collection and treatment of excess fluid, a drain pipe 2.1 for discharging fluid is also provided at the bottom of the discharge pipe 2.

[0020] In Example 2, during the spraying of coolant and lubricant, not only will excess coolant and lubricant remain on the surface of the wire, affecting subsequent processing of the wire, but the excess fluid will also flow along the discharge pipe 2, affecting the operation of the diameter measuring mechanism 4 and the defect detection mechanism 7. Therefore, both sides of the coolant nozzle 6 and the lubricant nozzle 8 are equipped with a ring-shaped sealing element 5, which is used to isolate the fluid and scrape off excess fluid from the surface of the wire. Specifically, the sealing element 5 includes a mounting ring 5.1 and an annular inner gasket 5.2. The mounting ring 5.1 is installed inside the discharge pipe 2 and is coaxially arranged with the discharge pipe 2. The annular inner gasket 5.2 is located on the inner wall of the mounting ring 5.1, and a through-hole 5.2.1 is formed in the middle of the annular inner gasket 5.2. The diameter of the through-hole 5.2.1 gradually decreases along the wire travel direction. The diameter of the end of the through-hole 5.2.1 facing the cutter head 1.2 is larger than the diameter of the wire, and the diameter of the end of the through-hole 5.2.1 facing the discharge wheel assembly 1.3 is smaller. The wire passes through the annular inner pad 5.2 and makes interference contact with the annular inner pad 5.2. The annular inner pad 5.2 can be made of rubber or sponge material. It can not only scrape the fluid on its surface as the wire moves, but also limit the excess fluid and prevent it from flowing in the discharge pipe 2. In order to achieve effective discharge and collection of excess fluid, there are at least two discharge pipes 2.1, which are respectively located at the lower part of the discharge pipe 2 between the seals 5 on both sides of the axial direction of the coolant nozzle 6 and the lubricant nozzle 8. To facilitate the disassembly and maintenance of the seal 5, the inner wall of the discharge pipe 2 is provided with an annular groove 2.3 for inserting and mounting the mounting ring 5.1. The outer side of the discharge pipe 2 is provided with an opening 2.4 that corresponds to and passes through the annular groove 2.3 and is used for inserting and removing the mounting ring 5.1. A cover plate 2.5 that is adapted to the opening 2.4 is detachably installed inside the opening 2.4. The inner surface of the cover plate 2.5 is provided with a groove 2.5.1 that is adapted to engage with the mounting ring 5.1.

[0021] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

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