Automatic leveling device for milling plate parts and control method thereof

Abstract

The present invention discloses an automatic leveling device for milling plate parts and a control method thereof, comprising a base, wherein the base is provided with an adjustable clamp and a fixed clamp, the base is further provided with a driver, a fixed leg and an adjustment leg, the adjustment leg is provided with a pressure sensor, the plate parts are clamped to the base by the adjustable clamp and the fixed clamp, the plate parts contact the pressure sensor, and the driver drives the adjustment leg to rise and fall to achieve the leveling of the plate parts. The present invention reduces the leveling cost of plate parts and improves the leveling reliability. By using the structure of the adjustment leg, the complex working scenes of milling are adapted; by driving the locking component by the locking cylinder, the adjustment leg is locked and unlocked, and the reliability of the leveling device is enhanced. The present invention can quickly level plate parts and improve the leveling efficiency and processing accuracy of the milling of plate parts.

Description

Technical Field

[0001] The invention belongs to the technical field of milling processing of cast plate parts such as cast iron and cast aluminum, and particularly relates to an automatic leveling device and a control method for the automatic leveling. Background Art

[0002] Automatic leveling devices are indispensable in milling operations. These devices are used to ensure that equipment or structures remain level. Their primary function is to monitor position changes in real time through sensors and control systems, automatically adjusting the equipment's posture. In recent years, with the rapid advancements in science and technology, electronic sensor technology, and the continued advancement of my country's equipment manufacturing industry toward high-end and intelligent manufacturing, plate-type parts processing demands higher precision and efficiency. Consequently, leveling devices are increasingly demanding high speed, flexibility, automation, and high stability. Traditional control methods, therefore, struggle to meet these requirements.

[0003] Cast iron, cast aluminum, and other castings are often used in the manufacture of machine tools, automotive parts, industrial transmission machinery, gearboxes, and other mechanical components due to their excellent castability and cost-effectiveness. However, these castings often exhibit significant dimensional errors and poor surface finish, making it difficult to locate reference surfaces during milling. Furthermore, for workpieces with complex shapes or multiple curved surfaces, milling can require multiple positioning and adjustments, further complicating the process.

[0004] Chinese patent publication CN220407935U discloses a leveling device for milling machines. Four support mechanisms are installed underneath the milling machine to adjust the height of each corner, keeping the entire machine level. While the device only levels the machine tool, it cannot level plate-like parts that have vertical dimensional deviations or are inherently uneven. Summary of the Invention

[0005] In order to overcome the problems in the prior art where only the machine tool is leveled, and the plate parts that have upper and lower dimensional deviations and are inherently uneven cannot be leveled, and cast iron, cast aluminum and other cast plate parts have extremely large dimensional errors and extremely poor surface finish, the present invention provides an automatic leveling device for milling processing of plate parts and a control method thereof, which can quickly level the plate parts and improve the leveling efficiency and processing accuracy of the milling processing of plate parts.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] An automatic leveling device for milling plate parts includes a base, an adjustable clamp and a fixed clamp are provided on the base, the base is also provided with a driver, fixed legs and adjustment legs, the adjustment legs are provided with pressure sensors, the plate parts are clamped to the base by the adjustable clamp and the fixed clamp, the plate parts contact the pressure sensors, and the driver drives the adjustment legs to rise and fall to achieve leveling of the plate parts.

[0008] By adopting the above-mentioned technical solution and installing pressure sensors on the adjustment legs, the system can monitor the contact pressure between plate parts and the sensors in real time. During the leveling process, the system can accurately sense the state of the plate parts and use the driver to drive the adjustment legs for leveling, thereby achieving a high-precision leveling effect. The driver's precise control can adjust the height of the legs based on the data from the pressure sensors, thereby more accurately achieving the ideal leveling state. The design of the adjustable clamp and fixed clamp allows plate parts to be firmly and stably clamped on the base. By precisely adjusting the position of plate parts, it can accommodate parts of different materials (such as cast iron, cast aluminum, etc.) and shapes, improving the device's adaptability to different types of workpieces. Due to the real-time monitoring and feedback of the pressure sensor, the system can maintain the horizontal state of the parts during the milling process, avoiding the impact of changes in the part position on the processing quality, improving the stability of the milling process, and reducing the processing errors caused by part position deviations.

[0009] It is further provided that a vertical axis and a horizontal axis are provided inside the adjusting leg, an inclined slot is provided on the horizontal axis, and one end of the vertical axis is inserted into the inclined slot.

[0010] By adopting the above technical solution, by opening an oblique groove on the horizontal axis and inserting the vertical axis into the oblique groove, the movement of the vertical axis can be carried out under the guidance of the oblique groove, which can effectively control the movement trajectory of the vertical axis and prevent it from offsetting during the lifting process, thereby improving the adjustment accuracy. The mutual cooperation between the vertical axis and the horizontal axis can make the lifting and lowering of the adjustment legs more precise, avoid asymmetric adjustment caused by movement in a single direction, and thus improve the overall accuracy of leveling. The cooperation of the vertical axis and the horizontal axis through the oblique groove and the slot helps to stabilize the structure of the legs, prevent unnecessary shaking or displacement during the lifting process, ensure the stability of the adjustment legs, and thus ensure the accuracy of the leveling process. The oblique groove design can reduce the direct friction between the vertical axis and the horizontal axis, thereby reducing the wear of the system during the adjustment process and extending the service life of the equipment.

[0011] It is further provided that a locking piece is provided inside the adjusting leg, and a locking cylinder is provided on the adjusting leg, and the locking cylinder drives the locking piece to perform a telescopic action.

[0012] By adopting this technical solution, a locking member is installed inside the adjustable leg, which is driven by a locking cylinder to extend and retract. The locking cylinder can fix the leg after the height adjustment is completed, preventing the leg from moving due to external forces or vibration during the processing. This ensures that the part remains stable during processing and further improves the accuracy of the leveling process.

[0013] It is further provided that a vertical axis, a horizontal axis and a stop pin are provided inside the adjusting leg, and both the vertical axis and the horizontal axis are provided with a pin slot, and the stop pin cooperates with the pin slot.

[0014] By adopting this technical solution, the pin slots and stop pins on the vertical and horizontal axes cooperate to ensure that the adjustable legs can only move along the set trajectory during adjustment, preventing any accidental rotation or deviation of the legs during adjustment. This not only allows for precise control of the leg position, but also ensures that each adjustment remains stable in the predetermined position, avoiding instability or error during the adjustment process. The stop pin and pin slot cooperate to prevent free rotation of the vertical and horizontal axes, ensuring that the legs remain fixed after adjustment is completed, and preventing rotation or instability caused by vibration or external interference of mechanical components.

[0015] It is further configured that there are two adjusting legs, the driver is located between the two adjusting legs, and the driver is connected to the horizontal axes of the two adjusting legs through two transmission shafts.

[0016] By adopting the above technical solution, the actuator is connected to both adjustable legs and driven synchronously via a drive shaft, ensuring that the adjustable legs on both sides can be raised and lowered synchronously. This avoids skew or imbalance caused by adjustment of one leg, ensuring that the entire device remains stable and level during the adjustment process. This synchronous adjustment evenly distributes the load between the adjustable legs, preventing instability or uneven wear caused by excessive load on one side, and improving the overall stability of the device. Furthermore, the actuator is a double-ended end cylinder.

[0017] It is further configured that the adjustment leg includes a first adjustment leg and a second adjustment leg, the driver is connected to the horizontal axis of the first adjustment leg, and the horizontal axes of the first adjustment leg and the second adjustment leg are connected via a transmission shaft.

[0018] By adopting the above technical solution, the first and second adjusting legs are connected by a drive shaft. When the driver drives the first adjusting leg, the drive shaft ensures that the second adjusting leg also rises and falls accordingly, enabling precise and synchronized adjustment of the two legs. This avoids leveling errors caused by inconsistent adjustment of one side, ensuring accuracy throughout the adjustment process. The synchronized rise and fall of the two adjusting legs ensures uniform support for plate-like components, avoids imbalances during adjustment, and thus improves leveling accuracy and reliability. By connecting the driver to one adjusting leg and the other adjusting leg via the drive shaft, the driver's burden is shared, eliminating the driver from bearing the adjustment load of both legs alone. This design reduces the power required by the driver and improves overall drive efficiency. Because the movement of the two adjusting legs is coordinated by the drive shaft, the driver only needs to drive one leg, while the drive shaft transfers power to the other leg. This optimizes energy transfer, reduces power consumption, and improves overall efficiency. Furthermore, the driver is a servo motor.

[0019] It is further provided that the adjustable clamp is provided with a tightening cylinder, and the tightening cylinder pushes the plate-like parts to perform a tightening action.

[0020] By adopting this technical solution, the propulsion of the tightening cylinder ensures that plate parts are securely fixed to the adjustable fixture during processing. The cylinder's propulsion force can be applied evenly and stably to the plate parts, preventing offsets or errors during processing caused by uneven or loose clamping, thereby improving processing accuracy. The use of the tightening cylinder reduces the need for manual operation, and the automated clamping action improves the operating efficiency of the device, avoiding loose clamping caused by improper operation or fatigue, further improving processing accuracy and quality.

[0021] It is further provided that the fixed legs are arched support structures.

[0022] By adopting this technical solution, the arched support structure, due to its geometric characteristics, can effectively disperse and withstand forces from different directions, improving the overall stability of the legs. During the machining process, plate parts generate different stresses, and the arched structure can better distribute these stresses, preventing deformation or instability of the legs due to excessive loads. The curved nature of the arched structure gives it an advantage over traditional linear structures in withstanding gravity and external impact forces. The fixed legs serve as the support base and can withstand greater loads, ensuring the equipment remains stable and reliable under heavy loads and adapting to high-load machining needs.

[0023] It is further provided that the base is installed with a cylinder bracket, and the driver is installed on the base through the cylinder bracket.

[0024] By adopting the above technical solution, the cylinder bracket provides a solid support for the driver, making it more stable during operation.

[0025] The device of the present invention secures the workpiece horizontally using fixed and adjustable fixtures. Two fixed legs are fixedly connected to the base, and their height cannot be adjusted. Two linked adjustable legs can be raised and lowered via a double-ended air cylinder and a drive shaft. Pressure sensors are installed on both adjustable legs to measure the pressure applied to them in real time, enabling a controller to set the height of the adjustable legs, ultimately achieving leveling of the workpiece. Furthermore, a locking component, driven by a locking cylinder, locks and unlocks the adjustable legs.

[0026] Unlike the traditional hydraulic and mechanical types of legs, the present invention uses two fixed legs and two linked adjustable legs. This not only avoids the shortcomings of hydraulic legs, such as high manufacturing precision requirements, aging and oil leakage of components after long-term use, the flammability of hydraulic oil itself, and the inability to self-lock; it also avoids the shortcomings of mechanical legs, such as complex structure and high component manufacturing precision requirements. It is suitable for cast iron, cast aluminum and other cast plate parts with large dimensional errors, extremely poor surface finish, and complex working environments of milling machines, improving the reliability of the leveling system while reducing manufacturing costs. Pin grooves are provided on the horizontal and vertical axes inside the adjusting legs, which cooperate with the stop pins to prevent the shaft from rotating during the height adjustment process, thereby improving the leveling accuracy. In addition, the device of the present invention uses a locking cylinder to drive the locking component to achieve locking and unlocking of the adjusting legs. Therefore, compared with the use of other types of legs, the adjusting legs of the device of the present invention further enhance the reliability of the leveling device.

[0027] Furthermore, unlike conventional leveling devices that use inclination sensors to measure the tilt of parts, this invention uses pressure sensors to measure the pressure applied to the legs during the leveling process, thereby determining whether leveling requirements have been met. This avoids the measurement difficulties and large measurement errors caused by the extreme dimensional errors and poor surface finish of cast iron, cast aluminum, and other plate parts, thereby improving the reliability of the leveling device.

[0028] Unlike traditional position error control leveling methods such as the peak-by-peak method and the shortest-time leveling method, this invention thoroughly analyzes the structure and principles of existing leveling devices and innovatively designs them. It utilizes fixed legs and a set of linked adjustable legs. Based on the pressure sensor measurements on the adjustable legs, a double-ended end cylinder controls the synchronous raising and lowering of the adjustable legs. This ultimately eliminates the effects of "virtual legs" and "leg coupling" in four-point support automatic leveling. Furthermore, it reduces the manufacturing cost of the leveling device and simplifies its logical control, thereby improving its flexibility and speed.

[0029] Traditional leveling devices only use displacement control or force control as independent control variables. The present invention uses dual-dimensional variable control, combining displacement and force control. A set of linked adjustment legs begins adjustment by first applying displacement control to the adjustment legs. After both adjustment legs simultaneously rise to a certain height, pressure values ​​are recorded on both adjustment legs. At this point, force control is applied to the adjustment legs. By calculating the "sum" and "absolute value of the difference" between the pressure values ​​on the two adjustment legs, the system determines, based on the leveling conditions, whether the plate-like part requires continued leveling until it is leveled, or whether it is scrap and cannot be processed.

[0030] A control method for an automatic leveling device for milling plate parts, the specific steps are as follows:

[0031] Step 1) Install the components of the automatic leveling device and check;

[0032] Step 2) Input the mass M of the plate casting part and calculate G = 10 × M. Place the plate casting part on the base and make it contact with the two fixed legs.

[0033] Step 3) Tighten the cylinder to drive the adjustable fixture so that the parts are initially tightened by the adjustable fixture and the fixed fixture;

[0034] Step 4) Leveling begins. The driver starts working, causing the first and second adjustment legs to rise synchronously, and the pressure sensors on the first and second adjustment legs both have pressure values; the pressure values ​​on the two adjustment legs are recorded as F1 and F2 respectively.

[0035] Step 5) Determine the resultant pressure on the two adjustment legs. If F1+F2≤0.6×G, proceed to step 6); if F1+F2>0.6×G, proceed to step 4);

[0036] Step 6) Determine the absolute value of the pressure difference between the two adjustment legs. If |F1-F2|≤0.4×G, proceed to step 7); if |F1-F2|>0.4×G, proceed to step 12);

[0037] Step 7) When leveling is completed, the locking cylinder controls the locking piece to lock the two adjustment legs;

[0038] Step 8) The tightening cylinder drives the adjustable fixture again, so that the plate parts are tightened again by the adjustable fixture and the fixed fixture;

[0039] Step 9) Start milling;

[0040] Step 10), milling work is completed;

[0041] Step 11), unlock the first adjustment leg and the second adjustment leg;

[0042] Step 12), the first adjustment leg and the second adjustment leg are retracted to their initial positions, and the processed plate parts are removed.

[0043] By adopting the above technical solution, the system can ensure that a reasonable pressure distribution is always maintained during the leveling process by monitoring the pressure values ​​on the two adjustment legs in real time. The determination of the resultant force and difference of the pressure values ​​F1 and F2 can effectively determine the leveling status of plate parts, ensure the accuracy during the leveling process, and avoid processing errors caused by imbalance. The control method realizes automatic leveling through a driver and a pressure sensor. The system can automatically determine whether the leveling is completed, and automatically adjust according to the pressure resultant force and pressure difference, reducing the complexity of manual operation and improving the efficiency of leveling. During the leveling process, the coordination of the tightening cylinder and the locking cylinder enables the adjustable clamp to tighten the parts quickly and reliably, reducing the leveling and fixing time, thereby improving the work efficiency of the entire milling process. The automatic leveling device can complete the leveling operation quickly and accurately, avoiding the time-consuming traditional manual leveling, shortening the part preparation time, and improving production efficiency.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. This invention reduces the cost of leveling plate parts and improves leveling reliability. By using adjustable legs, it adapts to complex milling operations. A locking cylinder drives the locking component to lock and unlock the adjustable legs, enhancing the reliability of the leveling device.

[0046] 2. This invention simplifies the complex structural design and control logic of the automatic leveling device. By designing two fixed legs and using two linked adjustable legs, the device structure becomes simple and stable. It also reduces the number of control objects, making the device control simpler and more efficient.

[0047] 3. This invention reduces automatic leveling time and improves leveling accuracy. By combining fixed and adjustable legs, it cleverly solves the "false legs" and "leg coupling" problems of traditional leveling devices, avoiding the long adjustment times associated with complex control and improving leveling accuracy.

[0048] 4. This invention improves the machining accuracy and efficiency of plate-type parts. The device utilizes dual-dimensional variable control: displacement control and force control. By using a pressure sensor to measure offset, it subtly reduces the surface flatness requirements of traditional leveling devices. This avoids the reduced machining accuracy and efficiency associated with using inclinometers or inclinometers to measure the tilt of uneven parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present invention will be further described below with reference to the accompanying drawings:

[0050] Figure 1 This is a top view of the automatic leveling device of Example 1;

[0051] Figure 2 This is a schematic structural diagram of the automatic leveling device of Example 1;

[0052] Figure 3 This is an axial side view of the driver and cylinder support of Example 1;

[0053] Figure 4 This is a schematic diagram of the fixed leg structure of Example 1;

[0054] Figure 5 This is a cross-sectional diagram of adjusting the support legs in Example 1;

[0055] Figure 6 This is a cross-sectional schematic diagram of the first adjustment leg of Example 2;

[0056] Figure 7 This is a cross-sectional diagram of adjusting the support legs in Example 1;

[0057] Figure 8 A top view of the automatic leveling device of Example 2;

[0058] Figure 9 Assembly diagram of an automatic leveling device for milling plate parts;

[0059] Figure 10 Operation flow chart of the automatic leveling device for milling plate parts.

[0060] Figure markings: 1. Base; 2. Adjustable clamp; 3. Fixed clamp; 4. Drive; 5. Fixed leg; 6. Adjusting leg; 6-1. Locking piece; 6-2. Locking cylinder; 6-3. Vertical axis; 6-4. Horizontal axis; 6-5. Stop pin; 6-6. Pin groove; 6-7. First adjusting leg; 6-8. Second adjusting leg; 6-9. Bevel groove; 7. Pressure sensor; 8. Drive shaft; 9. Cylinder bracket; 10. Fastening cylinder. DETAILED DESCRIPTION

[0061] The present invention will be described in detail below with reference to the accompanying drawings.

[0062] like Figure 1-4As shown, Example 1 is an automatic leveling device for milling plate parts, including a base 1, the base 1 is provided with an adjustable clamp 2 and a fixed clamp 3, the base 1 is also provided with a driver 4, a fixed leg 5 and an adjustment leg 6, the adjustment leg 6 is provided with a pressure sensor 7, the plate part is clamped to the base 1 by the adjustable clamp 2 and the fixed clamp 3, the plate part contacts the pressure sensor 7, and the driver 4 drives the adjustment leg 6 to rise and fall to achieve the leveling of the plate part.

[0063] like Figure 7 As shown, a locking member 6-1 is provided inside the adjusting leg 6, and a locking cylinder 6-2 is provided on the adjusting leg 6, and the locking cylinder 6-2 drives the locking member 6-1 to perform a telescopic action.

[0064] like Figure 5 、 Figure 7 As shown, a vertical shaft 6-3 and a horizontal shaft 6-4 are provided inside the adjusting leg 6, an inclined slot 6-9 is provided on the horizontal shaft 6-4, and one end of the vertical shaft 6-3 is inserted into the inclined slot 6-9.

[0065] A vertical shaft 6-3, a horizontal shaft 6-4 and a rotation-stopping pin 6-5 are provided inside the adjusting leg 6. Both the vertical shaft 6-3 and the horizontal shaft 6-4 are provided with a pin slot 6-6, and the rotation-stopping pin 6-5 cooperates with the pin slot 6-6.

[0066] There are two adjustable legs 6, with a driver 4 located between them. The driver 4 is connected to the horizontal shafts 6-4 of the two adjustable legs 6 via two transmission shafts 8. The driver 4 transmits driving force to the adjustable legs 6 via the transmission shafts 8, enabling the adjustment of the legs 6 up and down. Pin slots 6-6 are provided on the horizontal shaft 6-4 and vertical shaft 6-3 within the adjustable legs 6. These slots, in conjunction with stop pins 6-5, prevent rotation during height adjustment, thereby improving leveling accuracy. The driver 4 drives the horizontal shaft 6-4 to move horizontally, and the vertical shaft 6-3 in the chute 6-9 slides within the chute 6-9 as the horizontal shaft 6-4 moves, achieving the desired lift.

[0067] The adjustable clamp 2 is provided with a tightening cylinder 10, which pushes the plate-like parts to perform a tightening action.

[0068] like Figure 4 As shown, the fixed legs 5 are arched support structures. When performing leveling and milling operations, they are in linear contact with the parts. This not only ensures that the parts can rotate around the generatrix of the arched semicircle during leveling, but also ensures the load-bearing capacity of the parts during milling. There are four fixed legs 5.

[0069] like Figure 3 As shown, the base 1 is installed with a cylinder bracket 9, and the driver 4 is installed on the base 1 through the cylinder bracket 9.

[0070] like Figure 3As shown, the driver 4 is connected to the transmission shaft 8 and is locked with a nut, so that the transmission shafts 8 on both sides can be linked simultaneously.

[0071] The pressure sensor 7 can always measure the pressure borne on the top of the adjusting leg 6; after the adjusting leg 6 is raised and lowered under the drive of the transmission shaft 8, the locking piece 6-1 is pushed toward the leg by the locking cylinder 6-2. Since the two adjusting legs 6 have the same line surface, the locking cylinder 6-2 can lock the two with a smaller force; after the milling work is completed, the locking piece 6-1 can be automatically pulled away from the adjusting leg 6 by the locking cylinder 6-2.

[0072] Base 1 serves as the foundation for the entire assembly, supporting key components such as the adjustable fixture 2, fixed fixture 3, driver 4, fixed legs 5, and adjustable legs 6. It ensures stable positioning of plate-like parts and provides a stable platform for leveling and machining. Base 1 provides reliable support for other components, enhancing the overall stability of the assembly.

[0073] The adjustable legs 6 are equipped with pressure sensors 7, which monitor the pressure on the parts in real time, enabling precise leveling control and ensuring that the parts are properly stressed. The pressure sensors 7 accurately detect the force applied to the adjustable legs 6 and, using this feedback information, drive the system to adjust the leg height, ensuring precision during the leveling process.

[0074] When the adjustment leg 6 is adjusted, the locking cylinder 6-2 pushes the locking member 6-1 to ensure the locking of the adjustment leg 6. The locking mechanism ensures that the position of the leg does not shift during the leveling process and maintains stability.

[0075] After the milling work is completed, the locking cylinder 6-2 can automatically loosen the locking part 6-1, allowing the adjustment leg 6 to return to its original position, simplifying the operation process and enabling the equipment to automatically complete the process of loosening and retracting the legs, reducing manual intervention and improving operating efficiency.

[0076] A vertical axis 6-3 and a horizontal axis 6-4 are provided inside the adjusting leg 6, and both are provided with a pin slot 6-6. A rotation-stopping pin 6-5 cooperates with the pin slot 6-6 to prevent the adjusting leg from rotating during the adjustment process, thereby ensuring accuracy during the leveling process.

[0077] Driver 4 is located between the two adjustment legs 6 and transmits the driving force to the adjustment legs 6 through transmission shaft 8, achieving the synchronous raising and lowering of the adjustment legs on both sides. The dual-sided drive ensures the synchronization of the two adjustment legs, avoids imbalance during the adjustment process, and improves leveling accuracy.

[0078] Adjustable fixture 2 is equipped with a tightening cylinder 10, which is used to push and tighten plate-like parts, ensuring that the parts do not move during leveling and milling. The addition of tightening cylinder 10 enhances the clamping force, ensuring that the parts are stably fixed throughout the entire machining process, preventing the parts from loosening, and improving machining accuracy and safety.

[0079] The fixed legs 5 are arched support structures that utilize line contact with the part, accommodating minor part variations while providing sufficient load-bearing capacity. This arched structure not only ensures free rotation of the part around the arched generatrix during leveling, but also provides stable load-bearing capacity during milling, ensuring stability during machining.

[0080] The base 1 is equipped with a cylinder bracket 9, and the driver 4 is mounted on the base through the cylinder bracket 9 to ensure the stability of the driver 4. The transmission shaft 8 is locked by a nut. This simplifies the structure, improves the stability and reliability of the device, and avoids system errors caused by loose installation of the driver 4.

[0081] Example 2 is different from Example 1 in that Figure 6 、 Figure 8 As shown, the adjusting leg 6 includes a first adjusting leg 6-7 and a second adjusting leg 6-8, the driver 4 is connected to the horizontal axis 6-4 of the first adjusting leg 6-7, and the horizontal axes 6-4 of the first adjusting leg 6-7 and the second adjusting leg 6-8 are connected via a transmission shaft 8.

[0082] In Example 2, there are two adjusting legs 6, the same as in Example 1. However, the driver 4 is connected only to the first adjusting leg 6-7, while the first adjusting leg 6-7 and the second adjusting leg 6-8 are connected via a transmission shaft 8. This means that in Example 2, the driver 4 only controls one leg, while the other leg moves synchronously with it via the transmission shaft.

[0083] When the driver 4 is working, it drives the transmission shaft 8 to move to the right or left, and at the same time, the horizontal shaft 6-4 of the first adjustment leg 6-7 connected to the driver 4 moves to the right or left, thereby driving the vertical shaft 6-3 to move upward or downward, thereby realizing the rising or falling function of the first adjustment leg 6-7; when the driver 4 is working, the transmission shaft 8 is driven to move to the right or left through the horizontal shaft 6-4 of the first adjustment leg 6-7, and at the same time, the horizontal shaft 6-4 of the second adjustment leg 6-8 moves to the right or left, thereby driving the vertical shaft 6-3 to move upward or downward, thereby realizing the synchronous rising or synchronous falling function of the other adjustment leg 6.

[0084] Compared with embodiment 1, embodiment 2 simplifies the configuration of the driving device. The driver 4 only needs to drive one adjustment leg 6, and the other side is synchronously adjusted through the transmission shaft 8, which reduces the number and complexity of the drivers 4.

[0085] The two adjusting legs 6 are connected by a transmission shaft 8 to ensure synchronous adjustment of the two adjusting legs. No matter when one adjusting leg is stressed, the other adjusting leg will follow the adjustment through the transmission shaft, thereby achieving accurate synchronization of the adjusting legs on both sides.

[0086] A control method for an automatic leveling device for milling plate parts, the specific steps are as follows:

[0087] Step 1) Install the components of the automatic leveling device and check;

[0088] Step 2) Input the mass M of the plate casting part and calculate G = 10 × M of the plate casting part. Place the plate casting part on the base 1 and make sure the part is in contact with the two fixed legs 5.

[0089] Step 3), the tightening cylinder 10 drives the adjustable fixture 2 so that the part is initially tightened by the adjustable fixture 2 and the fixed fixture 3;

[0090] Step 4), leveling begins, the driver 4 starts working, causing the first adjustment leg 6-7 and the second adjustment leg 6-8 to rise synchronously, and the pressure sensors 7 on the first adjustment leg 6-7 and the second adjustment leg 6-8 both have pressure values; wherein the pressure values ​​on the two adjustment legs 6 are recorded as F1 and F2 respectively;

[0091] Step 5) Determine the resultant pressure on the two adjustment legs 6. If F1+F2≤0.6×G, proceed to step 6. If F1+F2>0.6×G, proceed to step 4.

[0092] Step 6) Determine the absolute value of the pressure difference between the two adjustment legs 6. If |F1-F2|≤0.4×G, proceed to step 7); if |F1-F2|>0.4×G, proceed to step 12);

[0093] Step 7) When the leveling is completed, the locking cylinder 6-2 controls the locking member 6-1 to lock the two adjustment legs 6;

[0094] Step 8), the tightening cylinder 10 drives the adjustable clamp 2 again, so that the plate-like parts are tightened again by the adjustable clamp 2 and the fixed clamp 3;

[0095] Step 9) Start milling;

[0096] Step 10), milling work is completed;

[0097] Step 11), unlock the first adjustment leg 6-7 and the second adjustment leg 6-8;

[0098] Step 12), the first adjustment leg 6-7 and the second adjustment leg 6-8 are retracted to their initial positions, and the processed plate parts are removed.

[0099] The control method of the present invention provides a systematic and automated milling processing leveling solution, which can improve the milling processing accuracy and efficiency of plate parts through precise pressure detection and automatic adjustment. Through precise pressure detection and leveling, the stability of the parts during milling is ensured, and processing errors caused by unevenness are avoided. Automatic adjustment and real-time monitoring reduce manual operations and improve production efficiency. Parts are fixed and locked in multiple steps to ensure stability during the processing and reduce the risk of failure. Automatic adjustment according to the quality of different parts makes the control method suitable for casting parts of different types and qualities. The automated process reduces manual intervention and improves the convenience and operability of the operation. This control method is suitable for milling processing work that requires high precision and high efficiency, especially when processing plate parts with large dimensional errors or unevenness, which can greatly improve production efficiency and processing quality.

[0100] The above-mentioned embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic leveling device for milling plate parts, comprising a base (1), the base (1) being provided with an adjustable clamp (2) and a fixed clamp (3), characterized in that: The base (1) is further provided with a driver (4), a fixed leg (5) and an adjustable leg (6); the adjustable leg (6) is provided with a pressure sensor (7); the plate-like part is clamped on the base (1) by the adjustable clamp (2) and the fixed clamp (3); the plate-like part contacts the pressure sensor (7); and the driver (4) drives the adjustable leg (6) to rise and fall to achieve leveling of the plate-like part; A vertical shaft (6-3) and a horizontal shaft (6-4) are provided inside the adjusting leg (6); an inclined slot (6-9) is provided on the horizontal shaft (6-4); and one end of the vertical shaft (6-3) is inserted into the inclined slot (6-9); A locking member (6-1) is provided inside the adjusting leg (6), and a locking cylinder (6-2) is provided on the adjusting leg (6), and the locking cylinder (6-2) drives the locking member (6-1) to perform a telescopic action; A rotation-stopping pin (6-5) is provided inside the adjusting leg (6), and a pin slot (6-6) is provided on both the vertical shaft (6-3) and the horizontal shaft (6-4), and the rotation-stopping pin (6-5) cooperates with the pin slot (6-6); There are two adjusting legs (6), and the driver (4) is located between the two adjusting legs (6). The driver (4) is connected to the horizontal shafts (6-4) of the two adjusting legs (6) through two transmission shafts (8). The adjusting leg (6) comprises a first adjusting leg (6-7) and a second adjusting leg (6-8), the driver (4) is connected to the horizontal shaft (6-4) of the first adjusting leg (6-7), and the horizontal shafts (6-4) of the first adjusting leg (6-7) and the second adjusting leg (6-8) are connected via a transmission shaft (8); The adjustable clamp (2) is provided with a tightening cylinder (10), and the tightening cylinder (10) pushes the plate-like parts to perform a tightening action.

2. The automatic leveling device for milling plate parts according to claim 1, characterized in that: The fixed legs (5) are arched support structures.

3. The automatic leveling device for milling plate parts according to claim 1, characterized in that: The base (1) is mounted with a cylinder bracket (9), and the driver (4) is mounted on the base (1) via the cylinder bracket (9).

4. A control method for an automatic leveling device for milling plate parts according to any one of claims 1-2, characterized in that: The specific steps are as follows: Step 1) Install the components of the automatic leveling device and check; Step 2) Input the mass M of the plate casting part, calculate G = 10 × M of the plate casting part, place the plate casting part on the base (1), and make the part contact with the two fixed legs (5); Step 3), the tightening cylinder (10) drives the adjustable fixture (2), so that the parts are initially tightened by the adjustable fixture (2) and the fixed fixture (3); Step 4), leveling begins, the driver (4) starts working, causing the first adjustment leg (6-7) and the second adjustment leg (6-8) to rise synchronously, and causing the pressure sensors (7) on the first adjustment leg (6-7) and the second adjustment leg (6-8) to have pressure values; wherein the pressure values ​​on the two adjustment legs (6) are recorded as F1 and F2 respectively; Step 5) Determine the resultant pressure on the two adjustment legs (6). If F1+F2≤0.6×G, proceed to step 6); if F1+F2>0.6×G, proceed to step 4); Step 6) Determine the absolute value of the pressure difference between the two adjustment legs (6). If |F1-F2|≤0.4×G, proceed to step 7); if |F1-F2|>0.4×G, proceed to step 12); Step 7) When the leveling is completed, the locking cylinder (6-2) controls the locking member (6-1) to lock the two adjustment legs (6); Step 8), the tightening cylinder (10) drives the adjustable clamp (2) again, so that the plate-like parts are tightened again by the adjustable clamp (2) and the fixed clamp (3); Step 9) Start milling; Step 10), milling work is completed; Step 11), unlock the first adjustment leg (6-7) and the second adjustment leg (6-8); Step 12), the first adjustment leg (6-7) and the second adjustment leg (6-8) are retracted to their initial positions, and the processed plate parts are removed.

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