Clamping device and machining method for combined frog point rail

Abstract

The invention provides a clamping device and a machining method for a combined frog point rail. The clamping device comprises a base workbench, a magnetic attraction device, a positioning base, a positioning device and a controller. The magnetic suction device is of a strip-shaped structure composed of one or more electromagnetic suction cups. The positioning bases are symmetrically distributed on the two sides of the magnetic attraction device. A positioning device is mounted on the positioning base; the positioning device forms a V-shaped positioning surface consistent with the inclination of a to-be-processed workpiece; the workpiece is positioned and clamped by the V-shaped positioning surface in a wedging manner; the positioning device enables the workpiece to be quickly aligned and positioned by oppositely clamping and positioning the two sides of the workpiece and longitudinally wedging and positioning the workpiece; after the workpiece is positioned on the V-shaped positioning surface of the positioning device, the controller controls the magnetic attraction device to magnetize and attract the workpiece, and workpiece clamping is completed; and the controller controls the magnetic suction device to demagnetize, so that the workpiece is unloaded. The combined frog point rail is clamped in the mode that positioning is combined with magnetic attraction, the problem that clamping of the combined frog point rail is labor-consuming, time-consuming and labor-consuming is solved, production efficiency is improved, cost is reduced, and efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of workpiece clamping of operating and transporting machine tools, and in particular relates to a clamping device and a processing method for a combined frog heart rail. Background Art

[0002] With the continuous improvement of the production mode, production equipment and manufacturing process of alloy steel frog products, higher requirements are put forward for the high efficiency and low labor intensity of the production and manufacturing process and the equipment used.

[0003] At present, traditional pressing plates are used for clamping during the production and processing of alloy steel frog rails. When the workpiece is clamped on the workbench, the operator must first find the correct position, place the pressing plates one by one, and then tighten the nuts with a wrench to clamp the workpiece. After the processing is completed, the nuts still need to be tightened manually and the workpieces must be disassembled one by one. During the entire processing process, the positioning and clamping are labor-intensive, the auxiliary time is long, the production efficiency is low, it is not conducive to reducing staff and increasing efficiency, and there are safety hazards.

[0004] In this regard, the following improved technical solutions are proposed. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a clamping device and a processing method for a combined frog heart rail, which adopts a positioning combined with adsorption method to clamp the combined frog heart rail, thereby solving the problem that the clamping of the combined frog heart rail is labor-consuming, time-consuming and labor-intensive, improving production efficiency, reducing costs and increasing efficiency.

[0006] The technical solution adopted by the present invention is a clamping device for a combined frog heart rail, comprising a base workbench, a magnetic suction device, a positioning base, a positioning device and a controller.

[0007] The magnetic suction device is composed of one or more electromagnetic suction cups to form a strip structure.

[0008] The positioning bases are symmetrically distributed on both sides of the magnetic suction device.

[0009] Positioning devices are respectively installed on the positioning bases on both sides.

[0010] The positioning devices on both sides form a V-shaped positioning surface with the same slope as the workpiece to be processed; the V-shaped positioning surface is wedge-type for positioning and clamping the workpiece to be processed; the positioning device quickly aligns and positions the workpiece to be processed by clamping the two sides of the workpiece to be processed and by longitudinal wedge positioning.

[0011] After the workpiece to be processed is positioned on the V-shaped positioning surface of the positioning device, the controller controls the magnetic suction device to magnetize and absorb the workpiece to be processed to complete the workpiece clamping; the controller controls the magnetic suction device to demagnetize and realize the workpiece unloading.

[0012] In the above technical solution, as a further improvement of the present invention: an interface is provided on the bottom surface of the magnetic attraction device for connecting and fixing with the base workbench.

[0013] In the above technical solution, as a further improvement of the present invention: it also includes an auxiliary device; the auxiliary device is symmetrically distributed on both sides of the magnetic suction device, and the auxiliary device clamps the rear end of the workpiece.

[0014] Among the above technical schemes, as the preferred technical scheme of the present invention: the auxiliary device is composed of an auxiliary support block, an auxiliary support block mounting bolt, and an auxiliary support side tightening bolt; the auxiliary support block is composed of a first auxiliary support block and a second auxiliary support block; the longitudinal section of the first auxiliary support block is a square structure; the first auxiliary support block is at the same height as the magnetic suction device; the second auxiliary support block and the first auxiliary support block are fastened together up and down using vertical auxiliary support block mounting bolts; the longitudinal section of the second auxiliary support block is a right-angled triangle structure, and the inner vertical positioning surface of the second auxiliary support block is installed with a horizontally arranged auxiliary support side tightening bolt, and the auxiliary support side tightening bolt tightens the vertical side of the workpiece.

[0015] In the above technical solution, as a further improvement of the present invention: the positioning base and the magnetic attraction device are an integrated structure or a split structure;

[0016] When the positioning base and the magnetic suction device are an integrated structure: the positioning base is provided with a positioning block notch; the positioning block notch is used for positioning and clamping of different types of center rail positioning devices; the positioning surface of the positioning device is used for positioning and clamping of different types of workpieces;

[0017] When the positioning base and the magnetic device are split structures: the positioning base can be moved and fixed along the length direction of the magnetic device, the positioning base is made with a concave structure, the concave structure is adapted to the convex structure of the positioning device, and the positioning surface of the positioning device is used for positioning and clamping workpieces of different models.

[0018] In the above technical solution, as an application of the present invention: the workpiece is a center rail workpiece that can realize the magnetic attraction function.

[0019] Among the above technical solutions, as the preferred technical solution of the present invention: the positioning devices are all quickly replaceable positioning block structures.

[0020] In the above technical solution, as a further improvement of the present invention: the controller is provided with a magnetization button and a demagnetization button.

[0021] In the above technical solution, as a further improvement of the present invention: it also includes a demagnetizer, which demagnetizes the workpiece to eliminate the residual magnetism of the workpiece without affecting the use of the workpiece.

[0022] The present invention also claims a method for processing a combined frog rail, using any clamping device to process the combined frog rail, and comprising the following steps:

[0023] S1. Preparation: Select the corresponding positioning device according to the workpiece to be processed, and install the positioning device on the positioning base.

[0024] S2. Quick alignment and positioning: hoist the workpiece to be processed and place it between the positioning devices on both sides; knock downward to clamp the workpiece between the positioning devices on both sides and align and position it; knock along the horizontal longitudinal direction to wedge the workpiece between the positioning devices and align and position it.

[0025] S3. Adsorption: Press the magnetization button of the controller to magnetize the magnetic device, and the magnetic device firmly adsorbs the workpiece.

[0026] S4. Processing: Complete processing according to the workpiece process.

[0027] S5. Unloading the workpiece: After the workpiece is processed, press the demagnetization button of the controller to eliminate the magnetic force of the magnetic suction device, making it easier to unload the workpiece.

[0028] S6. Eliminate the residual magnetism of the workpiece: Use a demagnetizer to demagnetize the workpiece to eliminate the residual magnetism of the workpiece without affecting the use of the workpiece.

[0029] In the above technical scheme, as a further improvement of the present invention: before the workpiece is milled with a large amount of cutting, a certain number of auxiliary devices are added to the corresponding parts of the workpiece according to the processing part and the size of the cutting amount to ensure the stability and processing accuracy of the workpiece, and then the workpiece is processed.

[0030] In the above technical solution, as a further improvement of the present invention: each machine tool is respectively provided with a plurality of clamping devices according to a plurality of workpieces.

[0031] The advantages of the present invention compared with the prior art are:

[0032] 1. The present invention is mainly composed of a magnetic device that provides adsorption force, a replaceable positioning device and a controller. The replaceable positioning device makes it applicable to a wide range of products. The knocking positioning combined with the magnetic positioning method reduces the frequent fastening and unloading of the workpiece. The clamping and positioning accuracy is high, the clamping is convenient and fast, and at the same time the labor intensity is reduced and the production efficiency is improved.

[0033] 2. The present invention reduces the time for clamping and positioning, and can complete the clamping and positioning of the workpiece in the shortest time. At the same time, multiple sets of tooling can be arranged on the machine tool workbench to clamp multiple workpieces for processing, which greatly shortens the auxiliary time for loading and unloading, tool setting and tool changing, and has high processing efficiency.

[0034] 3. The tooling positioning device of the present invention adopts a quickly replaceable positioning block structure. By manufacturing replaceable positioning blocks with different inclinations, it can meet the use of a variety of workpieces and improve the application range of the tooling.

[0035] 4. The tooling of the present invention changes the traditional processing positioning and clamping method. It combines the material characteristics of the workpiece and uses electromagnetic adsorption to clamp the workpiece, which greatly eliminates the use of traditional bolts and pressure plates, reduces loading and unloading time, achieves fast and accurate positioning and clamping, and reduces labor intensity.

[0036] 5. The magnetic suction device of the present invention adopts strong magnetic adsorption force, is not affected by power outage after magnetization, has no risk of demagnetization during processing, is safe and reliable, and improves the processing safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the integrated structure of the clamping device of the combined frog heart rail of the present invention;

[0038] Figure 2 It is a schematic structural diagram of the integrated positioning part of the clamping device of the present invention;

[0039] Figure 3 It is a schematic structural diagram of the auxiliary clamping part of the integrated auxiliary device of the clamping device of the present invention;

[0040] Figure 4 It is a schematic diagram of the split structure of the clamping device of the present invention;

[0041] Figure 5 It is a schematic diagram of the structure of the split positioning part of the clamping device of the present invention;

[0042] Figure 6 It is a structural schematic diagram of the auxiliary clamping part of the split auxiliary device of the clamping device of the present invention;

[0043] In the figure: 1-base workbench, 2-magnetic suction device, 3-positioning base, 4-positioning device, 5-auxiliary device, 5-1 auxiliary support block, 5-2 auxiliary support block mounting bolt, 5-3 auxiliary support side tightening bolt. DETAILED DESCRIPTION

[0044] The following will be combined with the attached embodiment of the present invention Figure 1-6 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] (like Figure 1 A clamping device for a combined frog heart rail (as shown) includes a base workbench 1, a magnetic suction device 2, a positioning base 3, a positioning device 4 and a controller.

[0046] The magnetic suction device 2 is composed of one or more electromagnetic suction cups to form a strip structure. The strip structure is a planar structure, which is convenient for the flat placement of the workpiece. The electromagnetic suction cup has a strong suction force, which can reach more than 16kg / square centimeter, and can meet the needs of various strong machining, rough machining, and fine machining. The magnetic force is evenly distributed, which allows the adsorbed workpiece to remain stable during the machining process and improves the machining accuracy. The suction force of the electromagnetic suction cup does not need to be maintained by continuous power supply, there is no risk of demagnetization, and continuous operation does not generate heat, thereby avoiding deformation of the workpiece due to heat and ensuring machining accuracy. One or more electromagnetic suction cups form a strip structure, which can be flexibly configured according to actual needs and is suitable for workpieces of different shapes and sizes.

[0047] The positioning base 3 is symmetrically distributed on both sides of the magnetic device 2. The positioning base is symmetrically distributed on both sides of the magnetic device, which can provide balanced support force for the magnetic device, ensuring that it remains stable during operation and is not prone to shaking or tilting. This layout helps to reduce the impact of external forces or vibrations generated during the processing process on the magnetic device and the adsorbed workpiece, thereby improving processing accuracy and stability. The design of the positioning base usually includes a precise calibration and positioning mechanism, which can ensure the precise alignment between the magnetic device and the workpiece being processed, and reduce processing errors caused by position deviations. The symmetrically distributed base can maintain the consistency of the magnetic device in the working area, ensuring that workpieces in different positions can obtain the same processing accuracy and surface quality. The symmetrically distributed base helps to reduce safety risks caused by unexpected situations such as equipment instability or workpiece falling off.

[0048] The positioning bases 3 on both sides are respectively installed with positioning devices 4; the positioning devices 4 on both sides form a V-shaped positioning surface consistent with the inclination of the workpiece to be processed; the V-shaped positioning surface is wedge-type positioned to clamp the workpiece to be processed; the positioning device 4 quickly aligns and positions the workpiece to be processed by clamping the two sides of the workpiece to be processed and wedging it longitudinally.

[0049] It should be noted that the V-shaped positioning surface can match the slope of the workpiece to be processed to achieve the effect of automatic centering. This means that when the workpiece is placed on the V-shaped positioning surface, it can be automatically adjusted to a relatively accurate position, reducing the time and error of manual alignment. The positioning device 4 not only matches the slope through the V-shaped positioning surface, but also clamps and positions the two sides of the workpiece to be processed. This dual positioning method ensures the stability of the workpiece in multiple directions and improves the accuracy of positioning. Under the joint action of the V-shaped positioning surface and the clamping positioning of the two sides, the freedom of the workpiece in multiple directions can be limited, so that the workpiece remains stable during the processing. This helps to reduce the processing errors caused by the movement or vibration of the workpiece and improve the processing accuracy. Since the design of the V-shaped positioning surface is consistent, the same positioning effect and processing accuracy can be guaranteed regardless of the slope of the workpiece being processed. This helps to achieve consistency in mass production and processing. The wedge-type positioning clamping method enables the workpiece to be quickly and accurately positioned on the V-shaped positioning surface, reducing the clamping time and the complexity of manual operation. This helps to improve production efficiency and shorten the production cycle. The complex positioning function is achieved through the simple V-shaped positioning surface and the two-side clamp positioning method, thereby simplifying the overall structure of the equipment. This helps to reduce production costs and manufacturing difficulty. Since the equipment has a simple structure and is easy to operate, maintenance and servicing work is also relatively simple.

[0050] After the workpiece to be processed is positioned on the V-shaped positioning surface of the positioning device 4, the controller controls the magnetic suction device 2 to magnetize and absorb the workpiece to be processed to complete the workpiece clamping; the controller controls the magnetic suction device 2 to demagnetize and realize the workpiece unloading.

[0051] It should be noted that: when the workpiece is positioned on the V-shaped positioning surface, the controller quickly controls the magnetic device 2 to magnetize, and the strong magnetic force can quickly and firmly adsorb the workpiece on the magnetic device to complete the clamping process. This process is usually very fast and can significantly improve production efficiency. After the processing is completed, the controller controls the magnetic device 2 to demagnetize, the magnetic force disappears, and the workpiece can be easily removed from the magnetic device. This unloading method is also fast and convenient, reducing the time and labor intensity of manual operation. Since the magnetic device can firmly adsorb the workpiece, the movement or offset of the workpiece caused by vibration during the processing is reduced, thereby improving the processing accuracy. During the entire processing process, the workpiece is kept in a precise position on the magnetic device, avoiding processing errors caused by the movement of the workpiece. Compared with traditional mechanical clamps, the magnetic device does not produce mechanical wear during the clamping process, thereby reducing the replacement frequency and maintenance cost of the clamp. The magnetic device does not require continuous power supply to maintain the adsorption force when working, and only consumes power at the moment of magnetization and demagnetization, so it has the characteristics of energy saving and high efficiency. The magnetic device can absorb a variety of metal materials, including iron, cobalt, nickel and their alloys, and is therefore suitable for processing a variety of workpieces. The design of the V-shaped positioning surface enables the magnetic device to adapt to workpieces of different shapes and sizes, improving the flexibility and adaptability of the equipment. The magnetic device can be integrated with automation equipment such as controllers and sensors to achieve automatic clamping, processing and unloading of workpieces, thereby improving the automation level of the production line. Through programming and settings, the controller can automatically adjust the magnetization and demagnetization time, strength and other parameters of the magnetic device according to different processing requirements and workpiece characteristics to achieve intelligent control.

[0052] (like Figure 2 , Figure 3 , Figure 5 , Figure 6As shown in the above embodiment, as a further improved embodiment of the present invention: the bottom surface of the magnetic suction device 2 is provided with an interface connected and fixed with the base workbench 1. The base workbench 1 has a T-shaped positioning groove. The interface design of the magnetic suction device 2 ensures that the magnetic suction device 2 can be accurately and firmly fixed on the base workbench 1, preventing displacement or loosening due to vibration or external force during processing, thereby ensuring the stability and reliability of processing. The stable connection reduces the processing error caused by the movement of the equipment and improves the processing accuracy of the workpiece. The standardized interface design makes the installation and disassembly of the magnetic suction device 2 simple and quick, reduces the time required to replace the workpiece or adjust the equipment, and improves production efficiency. The interface design usually has a certain compatibility and can adapt to magnetic suction devices of different models and specifications, which is convenient for flexible configuration and replacement according to processing requirements. The interface design usually takes into account the needs of different working environments and processing conditions, so that the magnetic suction device can be applied to various base workbenches, improving the adaptability and flexibility of the equipment. The stable connection reduces the risk of accidental detachment of the magnetic suction device during processing and ensures the safety of operators and equipment.

[0053] In the above embodiment, as a further improved embodiment of the present invention: (such as Figure 4 , Figure 6 The auxiliary device 5 is symmetrically distributed on both sides of the magnetic device 2, and the auxiliary device 5 clamps the rear end of the workpiece. The magnetic device 2 attracts the front end or main part of the workpiece by magnetic force, while the auxiliary device 5 clamps the rear end of the workpiece. This double clamping mechanism ensures the stability of the workpiece during processing and reduces the movement or deviation of the workpiece caused by vibration or external force. The clamping action of the auxiliary device 5 increases the contact area between the workpiece and the processing platform, thereby increasing the rigidity of the workpiece. This helps to reduce deformation during processing and improve processing accuracy.

[0054] In the above embodiments, as a preferred embodiment of the present invention: (such as Figure 6 (as shown in the figure) the auxiliary device 5 is composed of an auxiliary support block 5-1, an auxiliary support block mounting bolt 5-2, and an auxiliary support side tightening bolt 5-3; the auxiliary support block 5-1 is composed of a first auxiliary support block and a second auxiliary support block; the longitudinal section of the first auxiliary support block is a square structure; the first auxiliary support block is at the same height as the magnetic suction device 2; the second auxiliary support block and the first auxiliary support block are fastened together up and down using vertical auxiliary support block mounting bolts 5-2; the longitudinal section of the second auxiliary support block is a right-angled triangle structure, and the inner vertical positioning surface of the second auxiliary support block is installed with a horizontally arranged auxiliary support side tightening bolt 5-3, and the auxiliary support side tightening bolt 5-3 tightens the vertical side of the workpiece.

[0055] It should be noted that the auxiliary device 5 can achieve precise clamping of the rear end of the workpiece through the combination of the first auxiliary support block and the second auxiliary support block, and the tightening effect of the auxiliary support side tightening bolt 5-3. This clamping method ensures the position accuracy of the workpiece during the processing and reduces the processing error caused by the movement or offset of the workpiece. The first auxiliary support block is at the same height as the magnetic suction device 2, providing a stable horizontal support for the workpiece; and the right-angled triangle structure of the second auxiliary support block further enhances the vertical support of the workpiece. This dual support mechanism ensures the stability of the workpiece during the processing and prevents the workpiece from shaking due to vibration or external force. The right-angled triangle structure of the second auxiliary support block is flexible in design and can adapt to the rear end of workpieces of different shapes and sizes. This enables the auxiliary device 5 to be widely used in the processing of various workpieces, improving the adaptability and flexibility of the equipment. By adjusting the tightening force and position of the auxiliary support side tightening bolt 5-3, accurate clamping and positioning of the rear ends of different workpieces can be achieved. This adjustability enables the auxiliary device 5 to meet different processing requirements and improves processing efficiency and quality. The modular design of the auxiliary device 5 makes the clamping process simple and fast. The operator only needs to place the workpiece on the first auxiliary support block, and then tighten it through the auxiliary support block mounting bolts 5-2 and the auxiliary support side tightening bolts 5-3. This quick clamping method reduces the time required for manual adjustment of the workpiece position and improves production efficiency. The stable clamping mechanism effectively prevents the risk of the workpiece falling off during processing and ensures the safety of operators and equipment. The auxiliary device 5 adopts a modular design, and each component is relatively independent and easy to disassemble. This makes maintenance and servicing work simple and convenient, and reduces maintenance costs and difficulties. Components such as the auxiliary support block mounting bolts 5-2 and the auxiliary support side tightening bolts 5-3 adopt standardized interface design, which is easy to replace and upgrade. At the same time, it also improves the reliability and durability of the equipment.

[0056] In the above embodiment, as a further improved embodiment of the present invention: the positioning base 3 and the magnetic attraction device 2 are an integrated structure or a split structure.

[0057] (like Figure 1 , Figure 2 (As shown) when the positioning base 3 and the magnetic suction device 2 are an integrated structure: the positioning base 3 is formed with a positioning block slot; the positioning block slot is used for positioning and clamping of different types of heart rail positioning devices 4; the positioning surface of the positioning device 4 is used for positioning and clamping of different types of workpieces.

[0058] It should be noted that the integrated structure combines the positioning base 3 and the magnetic device 2 tightly together, reducing the gaps and connectors between the components, making the overall structure more compact. This compact structure is conducive to reducing the space occupied by the equipment and improving the layout flexibility of the production line. Since the positioning base 3 and the magnetic device 2 are integrally cast or processed, the connection between them is very strong and can provide better rigid support. This rigid support helps to reduce vibration and deformation during the processing process and improve the processing accuracy and stability of the workpiece. The integrated structure simplifies the installation process of the equipment, reduces the installation steps and the time required. At the same time, due to fewer connections between components, the complexity and cost of maintenance are also reduced.

[0059] (like Figure 4 , Figure 5 (As shown) when the positioning base 3 and the magnetic device 2 are split structures: the positioning base 3 can be moved and fixed along the length direction of the magnetic device 2, and the positioning base 3 is made with a concave structure, which is adapted to the convex structure of the positioning device 4, and the positioning surface of the positioning device 4 is used for positioning and clamping workpieces of different models.

[0060] What needs to be explained about the split structure is that the split structure allows the positioning base 3 and the magnetic device 2 to be designed and manufactured separately, and then assembled as needed. This design method provides higher flexibility, and the appropriate positioning base and magnetic device can be selected for combination according to different processing requirements and workpiece characteristics. In the split structure, if the positioning base or the magnetic device is damaged or needs to be upgraded, it can be replaced or upgraded separately without replacing the entire device. This design method reduces the maintenance cost and upgrade difficulty of the equipment. The split structure can better adapt to the needs of different working environments and processing conditions. For example, when it is necessary to frequently replace workpieces or adjust processing parameters, the split structure can complete the adjustment and reconfiguration of the equipment more quickly.

[0061] Comprehensive comparison: If the production line has limited space, the integrated structure may be more advantageous because it can reduce the space occupied by the equipment. For occasions requiring high-precision processing, the integrated structure may be more suitable because it provides better rigid support. If the production line needs to frequently change workpieces or adjust processing parameters, the split structure may be more advantageous because it provides higher flexibility and adaptability.

[0062] In the above embodiment, as an application embodiment of the present invention: the workpiece is a center rail workpiece that can realize the magnetic attraction function. The center rail workpiece should be made of materials with good magnetic permeability and magnetic retention, such as hard ferrite, rare earth permanent magnet materials, etc. These materials can ensure that the center rail workpiece generates a stable adsorption force under the action of the magnetic field. Since the center rail workpiece has a magnetic attraction function, it can be accurately adsorbed on the magnetic attraction device, thereby achieving high-precision positioning. This is particularly important for processing processes that require precise control of the position of the workpiece.

[0063] In the above embodiment, as a preferred embodiment of the present invention, the positioning device 4 is a quickly replaceable positioning block structure. The quickly replaceable positioning block structure allows different positioning blocks to be quickly replaced during the production process to adapt to different workpieces or production requirements. This greatly reduces the downtime caused by replacing the positioning device, thereby improving the overall production efficiency. Since the positioning block can be quickly replaced, the adjustment time required for replacing the positioning device, including mechanical adjustment, calibration, etc., is reduced, further improving the production efficiency. The quickly replaceable positioning block structure can easily adapt to workpieces of different shapes, sizes and weights to meet the needs of diversified production. This makes the production line more flexible and can quickly respond to market changes and customer customization needs. By adopting a quickly replaceable positioning block, the design complexity of the fixture can be simplified, and the manufacturing cost and maintenance difficulty of the fixture can be reduced. At the same time, due to the standardized and modular design of the positioning block, it is also convenient for inventory management and replacement. The quickly replaceable positioning block usually has a high positioning accuracy and repeat positioning accuracy, which can ensure the accurate positioning of the workpiece during the processing process. This helps to improve processing accuracy and product quality. Due to the quick replacement and precise positioning capabilities of the positioning block, the error and scrap rate caused by manual adjustment or inaccurate positioning can be reduced. The quick-change positioning block structure helps to reduce the manufacturing quantity and maintenance cost of the fixture, thereby saving production resources. At the same time, due to the standardization and modular design of the positioning block, it is also convenient for resource sharing and reuse. Due to the quick replacement characteristics of the positioning block, maintenance work becomes simple and quick. When the positioning block fails or wears out, it can be quickly replaced without overhauling the entire fixture. The standardization and modular design of the positioning block makes inventory management easier. Enterprises can reserve an appropriate amount of positioning blocks in advance according to production needs to avoid affecting production progress due to out-of-stock.

[0064] In the above embodiment, as a further improved embodiment of the present invention: the controller is provided with a magnetization button and a demagnetization button. The magnetization button and the demagnetization button allow the operator to directly magnetize and demagnetize the controller without complicated settings or adjustments, thereby improving work efficiency. The setting of the magnetization button and the demagnetization button makes the function of the controller clearer, and the operator can clearly know the function of each button, thereby reducing the possibility of misoperation.

[0065] The above embodiment, as a further improved embodiment of the present invention, also includes a demagnetizer, which demagnetizes the workpiece to eliminate the residual magnetism of the workpiece without affecting the use of the workpiece.

[0066] The present invention also claims a method for processing a combined frog rail, using any of the clamping devices to process the combined frog rail, and comprising the following steps:

[0067] S1. Preparation: Select the corresponding positioning device 4 according to the workpiece to be processed, and position and install the positioning device 4 on the positioning base 3. By preparing and installing the positioning device suitable for the workpiece to be processed in advance, the production preparation time can be shortened, so that the production line can be quickly put into production. This reduces the downtime caused by frequent replacement and adjustment of the positioning device, and improves the overall production efficiency. Selecting a positioning device that matches the workpiece to be processed can ensure that the workpiece is accurately positioned and supported during the processing. This helps to reduce processing errors caused by inaccurate positioning and improve processing accuracy and product quality. Different workpieces require different positioning methods and support structures. By selecting and installing the corresponding positioning device, the production line can flexibly respond to diverse production needs and quickly adapt to the processing requirements of different workpieces.

[0068] S2. Quick alignment and positioning: hoist the workpiece to be processed and place it between the positioning devices 4 on both sides; knock downward to clamp the workpiece between the positioning devices 4 on both sides and align and position it; knock along the horizontal longitudinal direction to wedge the workpiece between the positioning devices 4 and align and position it.

[0069] It should be noted that by knocking the workpiece downward so that it is clamped and aligned between the positioning devices on both sides, the workpiece can be accurately positioned in the horizontal direction. This physical contact alignment method is more reliable than simple mechanical positioning and can reduce positioning errors caused by irregular workpiece shapes or uneven surfaces. By knocking the workpiece in the horizontal longitudinal direction so that it is wedged and aligned between the positioning devices, the position of the workpiece can be further fine-tuned to ensure that it meets the precise positioning requirements in all key dimensions. This fine-tuning ability is essential to improving machining accuracy. The rapid alignment positioning method is based on the principle of physical knocking, and the operation is intuitive and easy to master. The operator can complete the alignment of the workpiece with a simple knocking action without complex measurement and calculation processes. Compared with the use of precision measuring tools for alignment, the rapid alignment positioning method reduces the dependence on measuring tools. This reduces the requirements for the operator's skill level and reduces the errors caused by tool damage or inaccurate calibration. The rapid alignment positioning method is suitable for workpieces of various shapes and sizes. Whether it is a workpiece with a regular shape or a workpiece with a complex shape, accurate positioning can be achieved through appropriate knocking and fine-tuning. During the processing, if the workpiece position is offset or needs to be adjusted, it can be quickly restored to its correct position by tapping again and fine-tuning. This flexibility enables the production line to cope with various emergencies and changing needs.

[0070] S3, adsorption: Press the magnetization button of the controller, the magnetic device 2 is magnetized, and the magnetic device 2 firmly adsorbs the workpiece. By pressing the magnetization button of the controller, the magnetic device 2 can be quickly magnetized and generate a strong adsorption force. This instant response capability ensures that the workpiece is firmly adsorbed on the magnetic device in a very short time, improving production efficiency and safety. The magnetized magnetic device can continuously provide a stable adsorption force, and can maintain the stable position of the workpiece even in a vibrating or impact environment, reducing the processing errors and safety hazards caused by the movement or displacement of the workpiece. The magnetization process can be completed by pressing the magnetization button of the controller, and the operation is simple and fast. This reduces the skill requirements and workload of the operator, making it easier for operators on the production line to master and use this technology. Combined with the automatic control system, the automatic magnetization and demagnetization process of the magnetic device can be realized. This further improves the automation and intelligence level of the production line and reduces the possibility of manual intervention and erroneous operation. The magnetic device can adapt to workpieces of different shapes, sizes and weights. By adjusting the magnetic field strength and layout of the magnetic device, accurate adsorption and positioning of different workpieces can be achieved. The magnetic device can ensure the precise positioning of the workpiece during the processing. Through the strong adsorption force and stable adsorption effect, the processing error and scrap rate caused by the movement or offset of the workpiece can be reduced. Because the workpiece is firmly adsorbed on the magnetic device, there is no need to frequently adjust the workpiece position or perform additional fixing operations during the processing. This helps to improve processing efficiency and reduce production costs.

[0071] S4. Processing: By precisely controlling the motion trajectory and cutting parameters of the machine tool, the size and shape of the processed workpiece can be ensured to meet the design requirements. Once the processing program is set, the machine tool can automatically complete the processing of the workpiece without manual intervention or frequent adjustments, which greatly improves production efficiency and capacity.

[0072] S5. Unloading the workpiece: After the workpiece is processed, press the demagnetization button of the controller, and the magnetic force of the magnetic suction device 2 is eliminated, making it easy to unload the workpiece. By simply pressing the demagnetization button of the controller, the magnetic force of the magnetic suction device can be quickly eliminated. This one-click operation not only simplifies the workflow, but also improves production efficiency. The demagnetization process is rapid, and the elimination of magnetic force is almost instant, allowing the workpiece to be quickly detached from the magnetic suction device, facilitating subsequent handling and other processes. Eliminating the magnetic force in time after the processing is completed can avoid accidental injuries to workers caused by the magnetic force when handling the workpiece, such as finger pinching or workpiece slipping. After demagnetization, there is no longer any magnetic force between the workpiece and the magnetic suction device, reducing damage to the workpiece surface caused by friction or collision.

[0073] S6. Eliminate residual magnetism of workpiece: Use a demagnetizer to demagnetize the workpiece to eliminate residual magnetism of the workpiece without affecting the use of the workpiece. Demagnetization treatment Demagnetize the workpiece with a professional demagnetizer to ensure that there is no residual magnetism in the workpiece during processing or use. Eliminate the residual magnetism of the workpiece to avoid affecting the railway locomotive and line signals during the use of the product and eliminate safety hazards.

[0074] In the above embodiment, as a further improved embodiment of the present invention: before the workpiece is milled with a large amount of cutting, a certain number of auxiliary devices 5 are added to the corresponding parts of the workpiece according to the processing part and the size of the cutting amount to ensure the stability and processing accuracy of the workpiece processing, and then the workpiece is processed. The technical effect is the same as before and will not be repeated.

[0075] In the above embodiment, as a further improved embodiment of the present invention: each machine tool is equipped with multiple clamping devices according to multiple workpieces. Through the use of the clamping device, while reducing the labor intensity, the auxiliary processing time is effectively reduced, the processing speed is further accelerated, and the processing cycle is shortened. When the multi-workpiece clamping device is used for workpiece positioning and clamping, the position accuracy of the workpiece is uniformly determined by the fixture and is not affected by the technical level of the workers. This makes the processing quality of parts and components of the same batch tend to the same level, and improves the processing accuracy and stability. The multi-workpiece clamping device simplifies the clamping process, reduces the dependence on the technical proficiency of the workers, and enables workers with lower technical levels to be competent for operating tasks, thereby reducing labor costs. By setting up multiple clamping devices, the machine tool can process workpieces of different models and shapes, thereby expanding the scope of use of the machine tool. This enables the same machine tool to complete more processing tasks and improves the utilization rate of the machine tool.

[0076] From the above description, it can be found that the present invention reduces the clamping and positioning time, can complete the workpiece clamping and positioning in the shortest time, and at the same time can arrange multiple sets of tooling on the machine tool workbench to clamp multiple workpieces for processing, so that auxiliary time such as shutdown for loading and unloading, tool setting and tool changing times is greatly shortened, and the processing efficiency is high.

[0077] The tooling positioning device 4 of the present invention adopts a quickly replaceable positioning block structure. By manufacturing replaceable positioning blocks with different inclinations, it can meet the use of various workpieces and improve the application range of the tooling.

[0078] The tooling of the present invention changes the traditional processing positioning and clamping method, and uses electromagnetic adsorption to clamp the workpiece in combination with the material characteristics of the workpiece, which greatly eliminates the use of traditional bolts and pressure plates, reduces loading and unloading time, achieves fast and accurate positioning and clamping, and reduces labor intensity.

[0079] The magnetic suction device of the present invention adopts a strong magnetic adsorption force, is not affected by power outages after magnetization, has no risk of demagnetization during processing, is safe and reliable, and improves the processing safety factor.

[0080] To sum up, the present invention is mainly composed of a magnetic device for providing adsorption force, a replaceable positioning device and a controller. The replaceable positioning device makes it applicable to a wide range of products. The knocking positioning combined with the magnetic positioning reduces the frequent fastening loading and unloading of the workpiece. The clamping positioning has high accuracy and the clamping is convenient and fast. At the same time, it reduces the labor intensity and improves production efficiency.

[0081] It should be understood that although the present specification is described according to an implementation method, the implementation method does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in this embodiment can also be appropriately arranged and combined to form other implementation methods that can be understood by those skilled in the art.

[0082] The above preferred embodiments are not intended to limit the scope of implementation of the present invention, so all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention; it should be noted that the components and materials used in the above embodiments are commercially available unless otherwise specified.

Claims

1. A clamping device for a combined frog rail, characterized in that: It comprises a base workbench (1), a magnetic suction device (2), a positioning base (3), a positioning device (4) and a controller; The magnetic suction device (2) is composed of one or more electromagnetic suction cups forming a strip structure; The positioning bases (3) are symmetrically distributed on both sides of the magnetic attraction device (2); The positioning bases (3) on both sides are respectively equipped with positioning devices (4); The positioning devices (4) on both sides form a V-shaped positioning surface with the same slope as the workpiece to be processed; the V-shaped positioning surface is used for wedge-type positioning and clamping of the workpiece to be processed; the positioning device (4) can quickly align and position the workpiece to be processed by clamping and positioning the two sides of the workpiece to be processed and by longitudinal wedge-type positioning; After the workpiece to be processed is positioned on the V-shaped positioning surface of the positioning device (4), the controller controls the magnetic attraction device (2) to magnetize and absorb the workpiece to be processed, thereby completing the clamping of the workpiece; and the controller controls the magnetic attraction device (2) to demagnetize, thereby achieving the unloading of the workpiece.

2. The clamping device according to claim 1, characterized in that: The bottom surface of the magnetic attraction device (2) is provided with an interface for connecting and fixing with the base workbench (1).

3. The clamping device according to claim 1, characterized in that: It also includes an auxiliary device (5); the auxiliary device (5) is symmetrically distributed on both sides of the magnetic attraction device (2), and the auxiliary device (5) clamps the rear end of the workpiece.

4. The clamping device according to claim 3, characterized in that: The auxiliary device (5) is composed of an auxiliary support block (5-1), an auxiliary support block mounting bolt (5-2), and an auxiliary support side tightening bolt (5-3); the auxiliary support block (5-1) is composed of a first auxiliary support block and a second auxiliary support block; the first auxiliary support block has a square structure in longitudinal section; the first auxiliary support block is at the same height as the magnetic suction device (2); the second auxiliary support block is fastened to the first auxiliary support block up and down as a whole using vertical auxiliary support block mounting bolts (5-2); the second auxiliary support block has a right-angled triangle structure in longitudinal section, and a horizontally arranged auxiliary support side tightening bolt (5-3) is installed on the inner vertical positioning surface of the second auxiliary support block, and the auxiliary support side tightening bolt (5-3) tightens the vertical side of the workpiece.

5. The clamping device according to claim 1, characterized in that: The positioning base (3) and the magnetic attraction device (2) are of an integrated structure or a split structure; When the positioning base (3) and the magnetic attraction device (2) are an integrated structure: the positioning base (3) is provided with a positioning block notch; the positioning block notch is used for positioning and clamping of different types of center rail positioning devices (4); the positioning surface of the positioning device (4) is used for positioning and clamping of different types of workpieces; When the positioning base (3) and the magnetic attraction device (2) are of a split structure: the positioning base (3) can be moved and fixed along the length direction of the magnetic attraction device (2), the positioning base (3) is provided with a concave structure, the concave structure is adapted to the convex structure of the positioning device (4), and the positioning surface of the positioning device (4) is used for positioning and clamping workpieces of different models.

6. The clamping device according to claim 1 or 3 or 4 or 5, characterized in that: The workpiece is a core rail workpiece that can realize a magnetic attraction function.

7. The clamping device according to claim 1 or 5, characterized in that: The positioning devices (4) are all quickly replaceable positioning block structures.

8. The clamping device according to claim 1, characterized in that: The controller is provided with a magnetization button and a demagnetization button.

9. The clamping device according to claim 1, characterized in that: It also includes a demagnetizer, which performs demagnetization on the workpiece to eliminate the residual magnetism of the workpiece without affecting the use of the workpiece.

10. A method for processing a combined frog rail, characterized in that: The combined frog rail is processed using the clamping device according to any one of claims 1 to 9, and comprises the following steps: S1. Preparation: Select the corresponding positioning device (4) according to the workpiece to be processed, and position and install the positioning device (4) on the positioning base (3); S2, rapid alignment and positioning: hoist the workpiece to be processed and place it between the positioning devices (4) on both sides; knock downwards to make the workpiece clamped and aligned between the positioning devices (4) on both sides; knock along the horizontal longitudinal direction to make the workpiece wedge between the positioning devices (4) and aligned; S3, adsorption: Press the magnetization button of the controller, the magnetic device (2) is magnetized, and the magnetic device (2) firmly adsorbs the workpiece; S4, processing: complete the processing according to the workpiece process; S5, unloading the workpiece: after the workpiece is processed, press the demagnetization button of the controller, and the magnetic force of the magnetic attraction device (2) is eliminated, making it easier to unload the workpiece; S6. Eliminate residual magnetism of workpiece: Use a demagnetizer to demagnetize the workpiece to eliminate residual magnetism without affecting the use of the workpiece.

11. The processing method according to claim 10, characterized in that: Before the workpiece is milled with a large amount of cutting, a certain number of auxiliary devices (5) are added to the corresponding parts of the workpiece according to the processing parts and the size of the cutting amount to ensure the stability and processing accuracy of the workpiece processing, and then the workpiece is processed.

12. The processing method according to claim 10, characterized in that: Each machine tool is equipped with multiple clamping devices according to the number of workpieces.

Images