Locomotive brake disc grinding apparatus

Abstract

The utility model provides a kind of locomotive brake disc polishing equipment, including rack, drive element is provided on rack, the output shaft end of drive element is provided with carousel, drive element can drive carousel rotate around the axis of carousel, carousel is provided with double-station polishing mechanism, double-station polishing mechanism includes the installation cover being set on rack, polishing abrasive wheel is rotatably arranged in installation cover, carousel is symmetrically provided with fixed disc, one of fixed disc is located just below polishing abrasive wheel, the front end of installation cover is slidably provided with transparent baffle, transparent baffle is located between two fixed discs, the utility model can be realized in the polishing of one of the workpieces to be polished simultaneously by double-station polishing mechanism, the installation operation of another workpiece to be polished can be realized, the idle running of traditional polishing equipment is solved when changing production or in the process of changing workpiece, greatly save unnecessary workpiece fetching and placing time, operation is more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a grinding equipment for locomotive brake discs. Background Technology

[0002] The brake discs of railway locomotives are located on both sides of the wheel discs. They are typically made of air-cooled hardened steel and are bolted to the wheel discs. Brake discs have excellent wear resistance and are primarily used for braking locomotives.

[0003] When railway locomotives are stopped for maintenance or after operation, the brake discs need to be removed from the locomotive and cleaned. This requires the use of grinding equipment. Traditional grinding equipment only has one grinding station, and after each grinding, the machine needs to be stopped to remove the finished product and install a new workpiece. The equipment idle time is relatively long, especially in batch processing grinding. The downtime for changing parts leads to a significant reduction in overall grinding efficiency. Utility Model Content

[0004] In view of this, the present invention provides a locomotive brake disc grinding equipment, which can achieve the installation and fixing of the part to be ground at another station at the same time as grinding through a dual-station grinding mechanism, greatly improving grinding efficiency, reducing changeover downtime, and solving the problems of long single-station changeover downtime and low grinding efficiency of traditional grinding equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides a locomotive brake disc grinding device, including a frame, a driving component mounted on the frame, a turntable mounted on the output shaft end of the driving component, the driving component driving the turntable to rotate around the axis of the turntable, a dual-station grinding mechanism mounted on the turntable, the dual-station grinding mechanism including a mounting cover mounted on the frame, a grinding wheel rotatably mounted inside the mounting cover, fixed discs symmetrically mounted on the turntable, one of the fixed discs being located directly below the grinding wheel, a transparent baffle slidably mounted at the front end of the mounting cover, the transparent baffle being located between the two fixed discs. This utility model can achieve the simultaneous grinding of one workpiece and installation of another workpiece to be ground through the dual-station grinding mechanism, greatly improving grinding efficiency, solving the problem that traditional grinding equipment needs to stop during production changes or run idle during workpiece changes, greatly saving unnecessary workpiece loading and unloading time, and making operation more convenient and efficient.

[0006] The dual-station grinding mechanism also includes a telescopic push rod mounted on the frame and located directly below the grinding wheel. An electromagnet is installed at the end of the output rod of the telescopic push rod, and an iron block adapted to the electromagnet is installed at the bottom of the fixed plate. This invention can bring the electromagnet into contact with the iron block at the bottom of the fixed plate by extending the output rod of the telescopic push rod. At the same time, the electromagnet is energized to achieve a firm and stable adsorption operation on the fixed plate and the workpiece to be ground on the fixed plate. It can realize the grinding operation of the entire end face of the workpiece, which is more convenient and efficient.

[0007] The fixed plate is equipped with a positioning pin that matches the positioning hole of the workpiece to be ground. This utility model can realize the initial positioning and installation of the workpiece to be ground by using the positioning pin, which greatly improves the installation efficiency of the workpiece.

[0008] The upper part of the mounting cover is equipped with a lifting rod, the output rod of which passes through the top wall of the mounting cover. The end of the lifting rod is equipped with a forward and reverse motor, and the end of the output shaft of the forward and reverse motor is equipped with a mounting seat. The grinding wheel is mounted on the mounting seat. This utility model can start the rotation of the output shaft of the forward and reverse motor to make the mounting seat and the grinding wheel on the mounting seat rotate at high speed. At the same time, the extension of the output rod of the lifting rod is started to push the grinding wheel downward to contact the upper surface of the workpiece to be ground, thereby realizing efficient grinding operation.

[0009] The mounting cover is U-shaped, with a hydraulic push rod at the front end. A slider is attached to the output end of the hydraulic push rod, sliding on the side wall of the mounting cover. The outer side of the slider is connected to the back of a transparent baffle. This invention allows the slider and transparent baffle to descend along the height of the mounting cover by extending the output rod of the hydraulic push rod, facilitating safety protection of the workpiece to be ground and real-time monitoring of the grinding process. After processing, the output rod of the telescopic push rod retracts, pulling the slider and transparent baffle upwards. Then, the drive unit rotates the turntable, rotating the ground workpiece out and simultaneously rotating the mounted workpiece to be ground into the rotating grinding wheel inside the mounting cover for grinding.

[0010] The transparent baffle is equipped with a handle on the outside, which makes it easier for the operator to grip and install or remove the transparent baffle, making the operation more convenient.

[0011] The frame is also equipped with a controller, which is electrically connected to the drive unit, telescopic push rod, electromagnet, lifting rod, forward and reverse motor and hydraulic push rod respectively. The telescopic push rod and the lifting rod are both electric push rods.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Solve the problem of downtime for single-station part change and improve grinding efficiency: This utility model can achieve this through a dual-station grinding mechanism. When the brake disc on one fixed plate is being ground, the workpiece can be installed on the other fixed plate. There is no downtime for part change. Compared with traditional single-station equipment, the grinding efficiency is greatly improved, and the effect is more significant when batch processing.

[0013] 2. Improve positioning accuracy and fixing reliability, and reduce scrap rate: This utility model can achieve the initial positioning of the brake disc by setting the positioning pin on the fixed plate, and fix it with the adsorption of the electromagnet, avoiding the displacement or damage caused by mechanical clamping. The grinding progress of the brake disc is greatly improved and the product qualification rate is greatly increased.

[0014] 3. Balancing protection and observation to enhance operational safety: This utility model can automatically raise and lower a transparent baffle via a hydraulic push rod. During grinding, the baffle lowers to block debris from flying and does not affect real-time observation of the grinding status; after grinding, the baffle rises to facilitate workstation switching. Compared with enclosed or open protection, operational safety is greatly improved, while reducing dust pollution.

[0015] 4. Adaptable to various brake disc thicknesses, enhancing versatility: This utility model features an adjustable lifting rod stroke, allowing for adjustment of the grinding wheel height according to the brake disc thickness. No special fixtures need to be replaced, making it suitable for processing brake discs of different locomotive models, greatly improving the equipment's versatility. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the locomotive brake disc grinding equipment of this utility model; Figure 2 This is a front view of the locomotive brake disc grinding equipment of this utility model; Figure 3 This is a top view of the locomotive brake disc grinding equipment of this utility model; Figure 4 This is a bottom view of the locomotive brake disc grinding equipment of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 100, frame; 200, drive unit; 300, turntable; 400, dual-station grinding mechanism; 410, mounting cover; 420, grinding wheel; 430, fixed plate; 440, telescopic push rod; 450, electromagnet; 460, iron block; 470, lifting rod; 480, forward and reverse motor; 490, mounting base; 500, transparent baffle; 600, hydraulic push rod; 700, slider; 800, handle; 900, controller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] like Figure 1-4 As shown: This embodiment provides a locomotive brake disc grinding device, including a frame 100, which is welded from Q235 steel plate. Q235 steel has high strength and good toughness, and can withstand the overall weight of the equipment and the vibration load during the grinding process, ensuring stable operation of the equipment. A drive component 200 is provided on the frame 100. The drive component 200 is a servo motor, and a Panasonic MSME042G1 servo motor with adjustable speed is selected. It has the advantage of high control precision, which can ensure that the turntable 300 accurately switches positions. The output shaft end of the drive component 200 is provided with a turntable 300. The drive component 200 can drive the turntable 300 to rotate around the axis of the turntable 300. A dual-station grinding mechanism 400 is provided on the turntable 300. The dual-station grinding mechanism 400 includes a mounting cover 410 provided on the frame 100. The mounting cover 410 is made of Q235 steel cut and welded into a U-shape. The mounting cover 410 has a semi-enclosed structure that provides protection for the grinding wheel 420 and the workpiece, blocking most of the flying debris. It also provides mounting support for internal components. The grinding wheel 420, made of brown fused alumina (model A60L5V), is rotatably mounted inside the mounting cover 410. Brown fused alumina has high hardness and good toughness, making it suitable for precision grinding of metal surfaces. The A60 grit size meets the surface roughness requirements of the brake disc, satisfying the standards for locomotive brake discs. Symmetrically arranged on the turntable 300 are fixed discs 430. Both the turntable 300 and the fixed discs 430 are made of 45# steel and have undergone surface quenching treatment. 45# steel possesses excellent comprehensive mechanical properties, and the surface hardness is increased after quenching, enabling it to withstand the weight of the brake disc and the impact of grinding, preventing deformation over long-term use. One of the fixed discs 430 is located directly below the grinding wheel 420. A transparent baffle 500, made of polycarbonate (PC) sheet, is slidably mounted on the front end of the mounting cover 410. The material has high light transmittance, allowing real-time observation of the grinding process. Its impact resistance is 250 times that of ordinary glass, effectively preventing grinding debris from flying and balancing observation and protection. The transparent baffle 500 is located between two fixed plates 430. This invention, through a dual-station grinding mechanism 400, allows for the simultaneous grinding of one workpiece and installation of the other, significantly improving grinding efficiency. It solves the problem of traditional grinding equipment requiring shutdown during production changes or idle operation during workpiece changes, greatly saving unnecessary workpiece handling time and making operation more convenient and efficient.

[0019] According to one embodiment of the present invention, such as Figure 1-4 As shown, the dual-station grinding mechanism 400 also includes a telescopic push rod 440 mounted on the frame 100 and located directly below the grinding wheel 420. An electromagnet 450 is mounted at the output rod end of the telescopic push rod 440. An iron block 460, compatible with the electromagnet 450, is mounted at the lower part of the fixed disk 430. The electromagnet 450 is a Ningbo Yunsheng MFZ1-3.5 electromagnet 450, which, when energized, can firmly attract the iron block 460, ensuring that the fixed disk 430 does not shift. This invention allows the electromagnet 450 to contact the iron block 460 at the lower part of the fixed disk 430 under the extension of the output rod of the telescopic push rod 440. Simultaneously, the electromagnet 450 is energized to achieve a firm and stable adsorption operation on the fixed disk 430 and the workpiece to be ground on it, enabling grinding of the entire end face of the workpiece, making it more convenient and efficient.

[0020] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the fixed disk 430 is provided with a positioning pin that matches the positioning hole of the workpiece to be ground. The positioning pin is made of 304 stainless steel. 304 stainless steel has strong corrosion resistance and high surface smoothness. It can be accurately inserted into the positioning hole of the brake disk to achieve initial positioning and is not easily affected by rust. This utility model can realize the initial positioning and installation of the workpiece to be ground by using the positioning pin, which greatly improves the installation efficiency of the workpiece.

[0021] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, a lifting rod 470 is provided on the upper part of the mounting cover 410. The output rod of the lifting rod 470 passes through the top wall of the mounting cover 410. A forward and reverse motor 480 is provided at the end of the lifting rod 470. A mounting seat 490 is provided at the end of the output shaft of the forward and reverse motor 480. A grinding wheel 420 is mounted on the mounting seat 490. This utility model can drive the mounting seat 490 and the grinding wheel 420 on the mounting seat 490 to rotate at high speed by starting the rotation of the output shaft of the forward and reverse motor 480. At the same time, the extension of the output rod of the lifting rod 470 is started to push the grinding wheel 420 downward to contact the upper surface of the workpiece to be ground, thereby realizing efficient grinding operation.

[0022] According to another embodiment of the present invention, such as Figure 1 and Figure 4As shown, the mounting cover 410 is U-shaped. A hydraulic push rod 600 is located at the front end of the mounting cover 410. A slider 700 is located at the end of the output rod of the hydraulic push rod 600. The slider 700 is made of wear-resistant cast iron, HT300. Cast iron has high wear resistance and is not easily worn when sliding with the side wall of the mounting cover 410, ensuring smooth lifting and lowering of the transparent baffle 500. The slider 700 is slidably set on the side wall of the mounting cover 410, and the outer side of the slider 700 is connected to the back of the transparent baffle 500. This utility model can use the extension of the output rod of the hydraulic push rod 600 to lower the slider 700 and the transparent baffle 500 along the height direction of the mounting cover 410, which facilitates the safe protection of the workpiece to be ground and the real-time monitoring of the grinding status during the processing. After the processing is completed, the output rod of the telescopic push rod 440 is activated to retract and pull the slider 700 and the transparent baffle 500 to rise. Then, the drive component 200 can be activated to rotate the turntable 300 to rotate out the ground workpiece and simultaneously rotate the installed workpiece to be ground into the rotating grinding wheel 420 inside the mounting cover 410 for grinding.

[0023] A handle 800 is provided on the outside of the transparent baffle 500. The handle 800 is made of ABS engineering plastic. ABS material is comfortable to the touch and wear-resistant, making it easy for operators to grip and manually install and remove the transparent baffle 500. The handle 800 makes it easier for operators to grip and perform installation and removal operations on the transparent baffle 500, making operation more convenient.

[0024] The frame 100 is also equipped with a controller 900, which is electrically connected to the drive unit 200, telescopic push rod 440, electromagnet 450, lifting rod 470, forward and reverse motor 480, and hydraulic push rod 600. The telescopic push rod 440 and the lifting rod 470 are both electric push rods. The forward and reverse motor 480 is a Siemens 1LE0001-1EA42-1AA4 forward and reverse motor 480, which can adjust the grinding wheel speed according to the grinding requirements. The controller 900 is a Mitsubishi FX3U-16MR / ES-A controller 900, which can link all electrical control components to achieve automated control. The electric push rod is a Taizhou Tuoda TDA60 / 80 electric push rod, which has an adjustable stroke and can accurately control the telescopic amount, adapting to fixed discs 430 of different thicknesses and grinding requirements.

[0025] How to use this utility model: First, it needs to be clarified that the grinding equipment involved in this utility model is mainly used for grinding disc-shaped workpieces with positioning holes. This utility model takes the grinding of locomotive brake discs as an example to explain its working principle and usage method in detail. The working principle is as follows: Signal linkage control: The operator presets the grinding parameters through the controller 900, and after receiving the instruction, the controller 900 sends action signals to each electronic control component; Workstation switching and workpiece fixing: The controller 900 starts the servo motor, which drives the turntable 300 to rotate, so that the fixed plate 430 with the brake disc to be ground is precisely moved to directly below the grinding wheel 420; then, the telescopic push rod 440 extends, pushing the electromagnet 450 to contact the iron block 460 at the bottom of the fixed plate 430. The controller 900 controls the electromagnet 450 to be energized, generating a suction force to attract the fixed plate 430, thus firmly fixing the workpiece; Protection and Grinding Start-up: The hydraulic push rod 600 output rod descends, driving the slider 700 and the polycarbonate transparent baffle 500 to descend along the slide rail, sealing the front end of the mounting cover 410 to form protection; at the same time, the controller 900 controls the forward and reverse motor 480 to start, driving the grinding wheel 420 to rotate at high speed; the lifting rod 470 output rod slowly descends, causing the grinding wheel 420 to gradually contact the brake disc end face, and the grinding operation begins; Dual-station parallel operation: During the grinding process, the operator can align the positioning hole of the brake disc to be ground with the positioning pin on the empty fixed plate 430 on the other side of the turntable 300 to complete the initial installation and realize the parallel "grinding-assembly" process. Grinding completion and station switching: After the preset grinding time is reached, the controller 900 sends commands in sequence: the forward and reverse motor 480 stops rotating, the lifting rod 470 outputs the rod to rise and reset, the electromagnet 450 is de-energized, the telescopic push rod 440 retracts and returns to its original position, and the hydraulic push rod 600 outputs the rod to rise and drive the baffle to reset; then, the servo motor drives the turntable 300 to rotate again, turning the ground brake disc to the outside, and the newly installed brake disc to be ground is turned into the underside of the grinding wheel 420, and the above grinding process is repeated to achieve continuous operation. The usage method is as follows: Equipment inspection and preparation: Before powering on, check the connection status of each component: whether the coupling between the servo motor and the turntable 300 is loose, whether the grinding wheel 420 is clamped, whether the positioning pin is intact, and whether the wire connection is secure. Turn on the main power supply, turn on the controller 900 switch, enter the parameter setting interface, and set the lifting rod 470 descent stroke, grinding wheel speed and grinding time according to the thickness of the brake disc to be ground. Test the operation of each electronic control component: The servo motor rotation, telescopic push rod 440 extension and retraction, electromagnet 450 power on and off, and baffle lifting and lowering are controlled individually by controller 900 to ensure that each action is smooth and without jamming. Workpiece installation and initial positioning: Hold the brake disc of the locomotive to be ground, align the positioning hole on its surface with the positioning pin on the fixed plate 430 on one side of the turntable 300, and gently put it down. The positioning pin is inserted into the positioning hole, and the initial installation is completed. If you need to replace the transparent baffle 500, you can grasp the handle 800, loosen the connecting bolts between the slider 700 and the baffle, remove the old baffle, install the new baffle, and then tighten the bolts. Start automated grinding: Click the "Start" button on the controller 900, and the equipment will automatically perform the following actions: the servo motor drives the turntable 300 to rotate, and rotates the workpiece to be ground to the bottom of the grinding wheel; the telescopic push rod 440 extends and the electromagnet 450 is energized to fix it; the baffle lowers for protection; the forward and reverse motor 480 starts and the lifting rod 470 lowers for grinding. During the grinding process, the grinding status of the brake disc can be observed through the transparent baffle 500. If any abnormality is found, such as abnormal noise from the grinding wheel or workpiece displacement, the "emergency stop" button on the controller 900 can be clicked to immediately stop all operations of the equipment and troubleshoot the fault. Finished product removal and repackaging: After polishing, the baffle rises automatically, and the turntable rotates the finished product to the outside. The operator holds the edge of the finished product and gently lifts it upwards to disengage the brake disc positioning hole from the positioning pin, thus completing the removal of the finished product. Immediately install the new brake disc to be ground on the empty fixed disc 430 to ensure continuous operation of the equipment. Cleaning and maintenance: After batch grinding is completed, turn off the main power and use compressed air to blow away the grinding debris inside the mounting cover 410, on the turntable 300 and the fixed plate 430 to avoid debris accumulation affecting positioning accuracy. Check the wear of the 420 grinding wheel: If there are obvious chips or abrasive grains falling off on the surface of the grinding wheel, loosen the motor output shaft chuck and replace it with a new grinding wheel, model A60L5V. Regularly lubricate moving parts such as slide rails and push rod pins. You can use L-AN46 total loss system oil to ensure smooth sliding. Check the surface of the electromagnet 450 for iron filings and wipe it clean with a cloth to avoid affecting the adsorption effect.

[0026] This invention enables the simultaneous installation and fixing of the workpiece to be ground at another station through a dual-station grinding mechanism 400, which greatly improves grinding efficiency, reduces downtime for changeover, and solves the problems of long downtime and low grinding efficiency of traditional grinding equipment when changing parts at a single station.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A locomotive brake disc grinding device, comprising a frame (100), characterized in that: A drive unit (200) is provided on the frame (100). A turntable (300) is provided at the end of the output shaft of the drive unit (200). The drive unit (200) can drive the turntable (300) to rotate around the axis of the turntable (300). A dual-station grinding mechanism (400) is provided on the turntable (300). The dual-station grinding mechanism (400) includes a mounting cover (410) provided on the frame (100). A grinding wheel (420) is rotatably provided inside the mounting cover (410). Fixed plates (430) are symmetrically provided on the turntable (300). One of the fixed plates (430) is located directly below the grinding wheel (420). A transparent baffle (500) is slidably provided at the front end of the mounting cover (410). The transparent baffle (500) is located between the two fixed plates (430).

2. The locomotive brake disc grinding equipment as described in claim 1, characterized in that: The dual-station grinding mechanism (400) also includes a telescopic push rod (440) mounted on the frame (100) and located directly below the grinding wheel (420). An electromagnet (450) is provided at the output rod end of the telescopic push rod (440), and an iron block (460) adapted to the electromagnet (450) is provided at the lower part of the fixed plate (430).

3. The locomotive brake disc grinding equipment as described in claim 2, characterized in that: The fixed plate (430) is provided with a positioning pin that matches the positioning hole of the workpiece to be ground.

4. The locomotive brake disc grinding equipment as described in claim 1, characterized in that: The driving component (200) is a servo motor.

5. The locomotive brake disc grinding equipment as described in claim 2, characterized in that: The upper part of the mounting cover (410) is provided with a lifting rod (470), the output rod of the lifting rod (470) passes through the top wall of the mounting cover (410), the end of the lifting rod (470) is provided with a forward and reverse motor (480), the end of the output shaft of the forward and reverse motor (480) is provided with a mounting base (490), and the grinding wheel (420) is mounted on the mounting base (490).

6. The locomotive brake disc grinding equipment as described in claim 1, characterized in that: The mounting cover (410) is U-shaped. A hydraulic push rod (600) is provided at the front end of the mounting cover (410). A slider (700) is provided at the output rod end of the hydraulic push rod (600). The slider (700) is slidably disposed on the side wall of the mounting cover (410). The outer side of the slider (700) is connected to the back of the transparent baffle (500).

7. The locomotive brake disc grinding equipment as described in claim 6, characterized in that: A handle (800) is provided on the outside of the transparent baffle (500).

8. The locomotive brake disc grinding equipment as described in claim 1, characterized in that: The frame (100) is also equipped with a controller (900), which is electrically connected to the drive unit (200), the telescopic push rod (440), the electromagnet (450), the lifting rod (470), the forward and reverse motor (480), and the hydraulic push rod (600).

9. The locomotive brake disc grinding equipment as described in claim 5, characterized in that: Both the telescopic push rod (440) and the lifting rod (470) are electric push rods.

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