Automatic leveling device for milling plate parts and control method of automatic leveling device

Abstract

The invention discloses an automatic leveling device for milling plate parts and a control method thereof.The automatic leveling device comprises a base, the base is provided with an adjustable clamp and a fixed clamp, the base is further provided with a driver, a fixed supporting leg and an adjusting supporting leg, the adjusting supporting leg is provided with a pressure sensor, and the plate parts are clamped to the base through the adjustable clamp and the fixed clamp; the plate part makes contact with the pressure sensor, and the driver drives the adjusting supporting legs to ascend and descend so that leveling of the plate part can be achieved. The leveling cost of the plate parts is reduced, and the leveling reliability is improved. The structure of the adjusting supporting legs is used, so that the device adapts to the complex working scene of milling machining; the locking component is driven by the locking air cylinder, locking and unlocking of the adjusting supporting leg are achieved, and the reliability of the leveling device is enhanced. By means of the leveling device, the plate parts can be rapidly leveled, and the leveling efficiency and the machining precision of milling machining of the plate parts are improved.

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 an automatic leveling control method thereof. Background Art

[0002] Automatic leveling device is indispensable in milling processing. Automatic leveling device is a device used to ensure that equipment or structure is in a horizontal state. Its main function is to monitor position changes in real time through sensors and control systems, and automatically adjust the posture of the equipment. In recent years, with the rapid development of science and technology, electronic sensor technology and equipment manufacturing industry in my country towards high-end and intelligent development, plate parts processing is required to have higher processing accuracy and processing efficiency, and then the leveling device is gradually developing towards high speed, flexibility, automation and high stability. Therefore, it is difficult for traditional control methods to meet these requirements.

[0003] Cast iron, cast aluminum and other casting parts are often used in the manufacture of machine tools, auto parts, industrial transmission machinery, gearboxes and other mechanical parts due to their excellent castability and cost-effectiveness. However, their dimensional errors are extremely large and their surface finish is extremely poor, making it difficult to locate the reference surface during milling. In addition, for workpieces with complex shapes or multiple curved surfaces, milling may require multiple positioning and adjustments, which increases the difficulty of milling.

[0004] The Chinese patent document with publication number CN220407935U discloses a leveling device for a milling machine, which adjusts the height of each corner of the milling machine by setting four supporting mechanisms under the milling machine to make the entire milling machine in a horizontal state. The leveling object is the machine tool, and it cannot play a leveling role for plate parts that have upper and lower size deviations and 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: An automatic leveling device for milling plate parts comprises 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 support leg and an adjusting support leg, the adjusting support 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 adjusting support leg to rise and fall to achieve the leveling of the plate parts.

[0007] By adopting the above technical solution, by installing pressure sensors on the adjustment legs, the system can monitor the contact pressure between plate parts and sensors in real time. During the leveling process, the state of plate parts can be accurately sensed, and the adjustment legs can be driven by the driver for leveling, thereby achieving a high-precision leveling effect. The precise control of the driver can adjust the height of the legs according to the data of the pressure sensor, so as to achieve the ideal leveling state more accurately. The design of the adjustable clamp and the fixed clamp enables the plate parts to be firmly and stably clamped on the base. By accurately adjusting the position of plate parts, it can cope with parts of different materials (such as cast iron, cast aluminum, etc.) and shapes, and improve the adaptability of the device to different types of workpieces. Due to the real-time monitoring feedback of the pressure sensor, the system can maintain the horizontal state of the parts during the milling process, avoid affecting the processing quality due to changes in the position of the parts, improve the stability of the milling process, and reduce the processing errors caused by the position deviation of the parts.

[0008] It is further arranged that a vertical axis and a horizontal axis are arranged 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.

[0009] By adopting the above technical solution, by opening an inclined groove on the horizontal axis, after the vertical axis is inserted into the inclined groove, the movement of the vertical axis can be carried out under the guidance of the inclined groove, so that the movement trajectory of the vertical axis can be effectively controlled to prevent it from being offset 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 leg more precise, avoid asymmetric adjustment caused by movement in a single direction, and thus improve the overall leveling accuracy. The cooperation between the vertical axis and the horizontal axis through the inclined groove and the slot helps to stabilize the structure of the leg, prevent unnecessary shaking or displacement during the lifting process, ensure the stability of the adjustment leg, and then ensure the accuracy during the leveling process. The inclined groove design can reduce the direct friction between the vertical axis and the horizontal axis, reduce the wear of the system during the adjustment process, and extend the service life of the equipment.

[0010] It is further configured that a locking piece is arranged inside the adjusting leg, and a locking cylinder is arranged on the adjusting leg, and the locking cylinder drives the locking piece to perform a telescopic action.

[0011] By adopting the above technical solution, by setting a locking piece inside the adjustable leg and driving the locking cylinder to extend and retract, the locking cylinder can fix the leg after the height adjustment is completed to prevent the leg from being displaced due to external force or vibration during the processing. This ensures that the parts always remain stable during the processing, further improving the accuracy of the leveling process.

[0012] It is further provided that a vertical axis, a horizontal axis and a stop pin are arranged 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.

[0013] By adopting the above technical solution, the cooperation between the pin grooves and the anti-rotation pins on the vertical and horizontal axes ensures that the adjustment legs can only move along the set trajectory during the adjustment process, avoiding any accidental rotation or offset of the legs during the adjustment process, not only can the position of the legs be accurately controlled, but also each adjustment can be stably kept at the predetermined position, avoiding instability or errors during the adjustment process. The anti-rotation pin cooperates with the pin groove to prevent the free rotation of the vertical and horizontal axes, ensuring that the legs can remain fixed after the adjustment is completed, avoiding rotation or instability of mechanical parts caused by vibration or external interference.

[0014] 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 respectively through two transmission shafts.

[0015] By adopting the above technical solution, by connecting the driver to the two adjustment legs and driving them synchronously through the transmission shaft, it is ensured that the adjustment legs on both sides can be raised and lowered synchronously, avoiding the skewness or imbalance caused by the adjustment of the legs on one side, and ensuring that the entire device is always in a stable horizontal state during the adjustment process. Through synchronous adjustment, the load can be evenly distributed on the adjustment legs on both sides, avoiding the instability or uneven wear of the legs caused by excessive load on one side, and improving the overall stability of the equipment. It is further configured that the driver is a double-headed end cylinder.

[0016] It is further configured that the adjusting leg includes a first adjusting leg and a second adjusting leg, the driver is connected to the horizontal axis of the first adjusting leg, and the horizontal axes of the first adjusting leg and the second adjusting leg are connected via a transmission shaft.

[0017] By adopting the above technical solution, the first adjustment leg and the second adjustment leg are connected through the transmission shaft. When the driver drives the first adjustment leg, the transmission shaft can ensure that the second adjustment leg is also raised and lowered, so that the two legs can be accurately and synchronously adjusted, avoiding the leveling error caused by inconsistent unilateral adjustment, and ensuring the accuracy of the entire adjustment process. Since the two adjustment legs are raised and lowered synchronously, the uniform support of the plate parts is guaranteed, and the imbalance in the adjustment process is avoided, thereby improving the accuracy and reliability of the leveling. By connecting the driver to one of the adjustment legs and connecting to the other adjustment leg through the transmission shaft, the burden of the driver is shared, avoiding the driver from bearing the adjustment load of the two legs alone. This design reduces the power required by the driver and improves the overall driving efficiency. Since the movement of the two adjustment legs is coordinated by the transmission shaft, the driver only needs to drive one leg, and the transmission shaft is responsible for transmitting power to the other leg. This can optimize energy transfer, reduce power consumption, and improve overall efficiency. It is further configured that the driver is a servo motor.

[0018] It is further arranged that the adjustable clamp is provided with a tightening cylinder, and the tightening cylinder pushes the plate-like parts to perform a tightening action.

[0019] By adopting the above technical solution, the plate parts can be firmly fixed on the adjustable fixture during the processing through the pushing action of the tightening cylinder. The pushing force of the cylinder can act on the plate parts evenly and stably, avoiding the offset or error in the processing process caused by uneven clamping or looseness, thereby improving the processing accuracy. The use of the tightening cylinder reduces the need for manual operation, and the automated clamping action improves the working efficiency of the device, avoids loose clamping caused by improper manual operation or fatigue, and further improves the processing accuracy and processing quality.

[0020] It is further arranged that the fixed legs are arched support structures.

[0021] By adopting the above technical solutions, the arched support structure can effectively disperse and withstand forces from different directions due to its geometric characteristics, thereby improving the overall stability of the legs. During the processing, plate parts will produce different stresses, and the arched structure can better share these stresses to avoid deformation or instability of the legs due to excessive loads. The bending characteristics of the arched structure make it more advantageous than traditional straight structures when it comes to bearing gravity and external impact forces. The fixed legs serve as the support base and can withstand greater loads, ensuring that the equipment remains stable and reliable under heavy loads and adapting to high-load processing needs.

[0022] 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.

[0023] By adopting the above technical solution, the cylinder bracket provides a solid support for the driver, making it more stable during the working process.

[0024] The device of the present invention fixes the workpiece in a horizontal plane by means of a fixed fixture and an adjustable fixture; two fixed legs are fixedly connected to the base, and the height of the legs cannot be adjusted; two linked adjustable legs, the height of which can be adjusted up and down by means of a double-ended end cylinder and a transmission shaft. At the same time, pressure sensors are provided on the two adjustable legs, which can measure the pressure value of the adjustable legs in real time, and then enable the controller to set the adjustment height of the adjustable legs, and finally realize the leveling function of the leveling parts. In addition, the locking component locks and unlocks the adjustable legs under the drive of the locking cylinder.

[0025] Different from the two types of traditional hydraulic and mechanical legs, the present invention uses two fixed legs and two linked adjustable legs, which not only avoids the high manufacturing precision requirements of hydraulic legs, the aging and oil leakage of components after long-term use, the flammability of hydraulic oil itself and the inability to self-lock; but also avoids the complex structure of mechanical legs, the high manufacturing precision requirements of components, etc., so as to be suitable for cast iron, cast aluminum and other casting plate parts with large dimensional errors, extremely poor surface finish and complex working environment of milling machines, improve the reliability of the leveling system and reduce 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 the 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.

[0026] In addition, unlike the traditional leveling device that uses an inclination sensor to measure the inclination of parts, the present invention uses a pressure sensor to measure the pressure on the legs during the leveling process, and then judge whether the leveling requirements are met. This avoids the measurement difficulties and large measurement errors caused by the large size errors and poor surface finish of cast iron, cast aluminum and other cast plate parts, thereby improving the reliability of the leveling device.

[0027] Different from the traditional position error control leveling method of the high point method and the shortest time leveling method, the present invention fully analyzes the structure and principle of the existing leveling device, and then innovatively designs the leveling device. A fixed leg and a set of linked adjustable legs are designed, and according to the measurement value of the pressure sensor on the adjustable leg, the double-headed end cylinder realizes the synchronous rising and falling control function of the adjustable leg. Finally, the influence of the "virtual leg" and "leg coupling" of the four-point support automatic leveling is eliminated. At the same time, the manufacturing cost of the leveling device is reduced, the logical control of the leveling device is simplified, and the flexibility and rapidity of the device are improved.

[0028] Traditional leveling devices only use displacement control or force control as independent control variables, while the present invention uses displacement control and force control as dual-dimensional variable control. For a set of linked adjustment legs, at the beginning of adjustment, the adjustment legs are first subjected to displacement control. After the two adjustment legs rise to a certain height at the same time, there are pressure values ​​on the two adjustment legs. At this time, force control is performed on the adjustment legs again, and the pressure values ​​on the two adjustment legs are calculated by "summing" and "absolute value of difference", and then according to the leveling conditions, it is judged whether the plate parts need to continue to be leveled until they are leveled, or whether they are scrap and cannot be leveled and processed.

[0029] A control method for an automatic leveling device for milling plate parts, the specific steps are as follows: Step 1), installing the components of the automatic leveling device and checking; Step 2) Input the mass M of the plate casting part, calculate the mass G=10×M of the plate casting part, place the plate part on the base, and make the part contact with the two fixed legs; Step 3), the tightening cylinder drives the adjustable fixture so that the parts are initially tightened by the adjustable fixture and the fixed fixture; Step 4), leveling starts, the driver starts working, the first adjustment leg and the second adjustment leg rise synchronously, and the pressure sensors on the first adjustment leg and the second adjustment leg both have pressure values; wherein the pressure values ​​on the two adjustment legs are recorded as F1 and F2 respectively; 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); 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); Step 7) When the leveling is completed, the locking cylinder controls the locking piece to lock the two adjustment legs; Step 8), the tightening cylinder drives the adjustable clamp again, so that the plate parts are tightened again by the adjustable clamp and the fixed clamp; Step 9), start milling work; Step 10), the milling work is completed; Step 11), unlock the first adjustment leg and the second adjustment leg; Step 12), the first adjustment leg and the second adjustment leg are retracted to the initial position, and the processed plate parts are removed.

[0030] By adopting the above technical solution, the system can ensure that a reasonable pressure distribution is always maintained during the leveling process by real-time monitoring of the pressure values ​​on the two adjustment legs. The determination of the resultant force and difference of the pressure values ​​F1 and F2 can effectively determine the leveling state 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 cooperation of the tightening cylinder and the locking cylinder enables the adjustable fixture to quickly and reliably tighten the parts, reducing the leveling and fixing time, thereby improving the work efficiency of the entire milling process. The automatic leveling device can quickly and accurately complete the leveling operation, avoiding the time-consuming traditional manual leveling, shortening the part preparation time, and improving production efficiency.

[0031] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention reduces the leveling cost of plate parts and improves the reliability of leveling. By using the structure of the adjustment legs, it adapts to the complex working scenes of milling processing; the locking cylinder drives the locking component to achieve the locking and unlocking of the adjustment legs, which enhances the reliability of the leveling device.

[0032] 2. The present invention simplifies the complex structural design and control logic of the automatic leveling device. By designing two fixed legs and using two linkage adjustment legs, the device structure becomes simple and stable; at the same time, the control objects are reduced, thereby making the device control simple and efficient.

[0033] 3. The present invention reduces the automatic leveling time and improves the leveling accuracy. By combining fixed legs and adjustable legs, the "virtual legs" and "leg coupling" problems existing in traditional leveling devices are cleverly solved, avoiding the consequences of long adjustment time due to cumbersome adjustment control, and also improving the leveling accuracy.

[0034] 4. The present invention improves the processing accuracy and processing efficiency of a plate-type part. The device of the present invention uses displacement control and force control in two dimensions. By using a pressure sensor to measure the offset, the requirements of the traditional leveling device for the flatness of the part surface are subtly reduced, avoiding the consequences of low processing accuracy and low processing efficiency caused by using an inclinometer or an angle meter to measure the tilt state of a part with an uneven surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention is further described below in conjunction with the accompanying drawings: Figure 1 It is a top view of the automatic leveling device of Example 1; Figure 2This is a schematic diagram of the structure of the automatic leveling device of Example 1; Figure 3 This is a side view of the driver and cylinder support of Example 1; Figure 4 This is a schematic diagram of the fixed leg structure of Example 1; Figure 5 This is a cross-sectional diagram of adjusting the supporting legs in Example 1; Figure 6 This is a cross-sectional schematic diagram of the first adjustment leg of Example 2; Figure 7 This is a cross-sectional diagram of adjusting the supporting legs in Example 1; Figure 8 A top view of the automatic leveling device of Example 2; Fig. 9 Schematic diagram of the assembly of an automatic leveling device for milling of plate parts; Fig.10 Operation flow chart of the automatic leveling device for milling of plate parts.

[0036] 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. inclined groove; 7. pressure sensor; 8. transmission shaft; 9. cylinder bracket; 10. fastening cylinder. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] like Figure 1-4 As shown, Example 1 is an automatic leveling device for milling of 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 parts are clamped on the base 1 by the adjustable clamp 2 and the fixed clamp 3, the plate parts contact the pressure sensor 7, and the driver 4 drives the adjustment leg 6 to rise and fall to achieve the leveling of the plate parts.

[0039] like Figure 7 As shown, a locking member 6-1 is arranged inside the adjusting leg 6, and a locking cylinder 6-2 is arranged on the adjusting leg 6, and the locking cylinder 6-2 drives the locking member 6-1 to perform a telescopic action.

[0040] like Figure 5 , Figure 7 As shown, a vertical axis 6-3 and a horizontal axis 6-4 are arranged inside the adjusting leg 6, an inclined slot 6-9 is provided on the horizontal axis 6-4, and one end of the vertical axis 6-3 is inserted into the inclined slot 6-9.

[0041] A vertical shaft 6-3, a horizontal shaft 6-4 and a stop pin 6-5 are arranged 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 stop pin 6-5 matches with the pin slot 6-6.

[0042] 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 driver 4 transmits the driving force to the adjusting legs 6 through the transmission shaft 8 to achieve the adjustment function of the rising and falling of the adjusting legs 6. Pin grooves 6-6 are provided on the horizontal shaft 6-4 and the vertical shaft 6-3 inside the adjusting legs 6, which cooperate with the stop pin 6-5 to prevent the shaft from rotating during the height adjustment process, thereby improving the leveling accuracy. The driver 4 drives the horizontal shaft 6-4 to move in the horizontal direction. At this time, the vertical shaft 6-3 in the inclined groove 6-9 slides in the inclined groove 6-9 with the movement of the horizontal shaft 6-4 to achieve the lifting action.

[0043] 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.

[0044] like Figure 4 As shown, the fixed legs 5 are arched support structures, which are in line contact with the parts during leveling and milling, which not only ensures that the parts can rotate around the generatrix of the arched semicircle during leveling, but also ensures the bearing capacity of the parts during milling. There are four fixed legs 5.

[0045] 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.

[0046] like Figure 3 As 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.

[0047] The pressure sensor 7 can measure the pressure on the top of the adjusting leg 6 at all times; 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.

[0048] The base 1 serves as the supporting foundation of the entire device and carries key components such as the adjustable fixture 2, the fixed fixture 3, the driver 4, the fixed legs 5 and the adjustable legs 6. It ensures the stable positioning of the plate parts and provides a stable platform required for leveling and processing. The base 1 provides reliable support for other components and enhances the overall stability of the device.

[0049] The adjusting leg 6 is equipped with a pressure sensor 7, which monitors the pressure on the part in real time, and can achieve precise leveling control to ensure that the part is stably stressed. The pressure sensor 7 can accurately detect the stress condition of the adjusting leg 6, and drive the system to adjust the height of the leg through feedback information to ensure accuracy during the leveling process.

[0050] 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 deviate during the leveling process and maintains stability.

[0051] 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 the original position, simplifying the operation process, allowing the equipment to automatically complete the process of loosening and retracting the legs, reducing manual intervention and improving operating efficiency.

[0052] 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 stop 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.

[0053] The driver 4 is located between the two adjusting legs 6, and transmits the driving force to the adjusting legs 6 through the transmission shaft 8, so as to achieve the synchronous rise and fall of the adjusting legs on both sides. The double-sided drive ensures the synchronization of the two adjusting legs, avoids the imbalance problem during the adjustment process, and improves the leveling accuracy.

[0054] The adjustable clamp 2 is provided with a tightening cylinder 10, which is used to push the plate-like parts for tightening operation, ensuring that the parts do not move during the leveling and milling process. The addition of the tightening cylinder 10 enhances the clamping force, ensures that the parts are stably fixed during the entire processing process, prevents the parts from loosening, and improves the processing accuracy and safety.

[0055] The fixed leg 5 is an arched support structure, which adopts a line contact method when contacting the part, can adapt to the slight changes of the part and provide sufficient bearing capacity. The arched structure can not only ensure that the part can rotate freely around the arch generatrix during leveling, but also provide stable bearing capacity during milling to ensure stability during processing.

[0056] The base 1 is equipped with a cylinder bracket 9, and the driver 4 is installed on the base through the cylinder bracket 9 to ensure the stability of the driver position, and the transmission shaft 8 is locked by a nut. The structure is simplified, the stability and reliability of the device are improved, and the system error caused by the loose installation of the driver is avoided.

[0057] Embodiment 2 is different from Embodiment 1 in that Figure 6 , Figure 8As 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.

[0058] In Embodiment 2, the number of the adjusting legs 6 is two, which is the same as the design in Embodiment 1. However, the driver 4 is only connected to the first adjusting leg 6-7, and the first adjusting leg 6-7 and the second adjusting leg 6-8 are connected via a transmission shaft 8. This means that in Embodiment 2, the driver 4 only controls one leg, while the other leg moves synchronously with it via the transmission shaft.

[0059] 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 axis 6-4 of the first adjusting leg 6-7 connected to the driver 4 moves to the right or left, thereby driving the vertical axis 6-3 to move upward or downward, thereby realizing the rising or falling function of the first adjusting 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 axis 6-4 of the first adjusting leg 6-7, and at the same time, the horizontal axis 6-4 of the second adjusting leg 6-8 moves to the right or left, thereby driving the vertical axis 6-3 to move upward or downward, thereby realizing the synchronous rising or synchronous falling function of the other adjusting leg 6.

[0060] Compared with embodiment 1, embodiment 2 simplifies the configuration of the driving device. The driver 4 only needs to drive one adjusting leg 6, and the other side is synchronously adjusted through the transmission shaft 8, thereby reducing the number and complexity of the drivers 4.

[0061] The two adjusting legs 6 are connected by a transmission shaft 8, which ensures the 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.

[0062] A control method for an automatic leveling device for milling plate parts, the specific steps are as follows: Step 1) Install the parts of the automatic leveling device and check; Step 2), input the mass M of the plate casting part, calculate the mass G of the plate casting part = 10 × M, 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 4 drives the adjustable fixture 2, so that the parts are initially tightened by the adjustable fixture 2 and the fixed fixture 4; Step 4), leveling starts, the driver 4 starts working, so that the first adjustment leg 6-7 and the second adjustment leg 6-8 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; 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), after 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 4 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 work; Step 10), the 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 the initial position, and the processed plate parts are removed.

[0063] The control method of the present invention provides a systematic and automated milling leveling solution, which can improve the milling accuracy and efficiency of plate parts through precise pressure detection and automatic adjustment. Through precise pressure detection and leveling, the stability of parts during milling is ensured to avoid processing errors caused by unevenness. 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 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 operation. This control method is suitable for milling 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.

[0064] The above-mentioned implementation mode is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present implementation mode as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An automatic leveling device for milling plate parts, comprising a base (1), the base (1) being provided with an adjustable fixture (2) and a fixed fixture (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, thereby achieving leveling of the plate-like part.

2. The automatic leveling device for milling of plate parts according to claim 1 is characterized in that: A vertical shaft (6-3) and a horizontal shaft (6-4) are arranged inside the adjusting leg (6); an inclined groove (6-9) is provided on the horizontal shaft (6-4); and one end of the vertical shaft (6-3) is inserted into the inclined groove (6-9).

3. The automatic leveling device for milling of plate parts according to claim 2 is characterized in that: A locking piece (6-1) is arranged inside the adjusting leg (6), and a locking cylinder (6-2) is arranged on the adjusting leg (6), and the locking cylinder (6-2) drives the locking piece (6-1) to perform a telescopic action.

4. The automatic leveling device for milling of plate parts according to claim 3 is characterized in that: A rotation-stopping pin (6-5) is arranged inside the adjusting leg (6), and both the vertical shaft (6-3) and the horizontal shaft (6-4) are provided with a pin groove (6-6), and the rotation-stopping pin (6-5) matches with the pin groove (6-6).

5. The automatic leveling device for milling of plate parts according to claim 4 is characterized in that: 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 axes (6-4) of the two adjusting legs (6) respectively through two transmission shafts (8).

6. The automatic leveling device for milling plate parts according to claim 4, characterized in that: The adjusting leg (6) comprises a first adjusting leg (6-7) and a second adjusting leg (6-8); the driver (4) is connected to a horizontal axis (6-4) of the first adjusting leg (6-7); and the first adjusting leg (6-7) and the horizontal axis (6-4) of the second adjusting leg (6-8) are connected via a transmission shaft (8).

7. The automatic leveling device for milling plate parts according to any one of claims 1 to 6, characterized in that: 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.

8. The automatic leveling device for milling plate parts according to any one of claims 1 to 6, characterized in that: The fixed legs (5) are arched support structures.

9. The automatic leveling device for milling plate parts according to any one of claims 1 to 6, 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).

10. A control method for the automatic leveling device for milling plate parts according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1), installing the components of the automatic leveling device and checking; Step 2), input the mass M of the plate casting part, calculate the mass G of the plate casting part = 10 × M, 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 (4) drives the adjustable clamp (2), so that the parts are initially tightened by the adjustable clamp (2) and the fixed clamp (4); 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 on 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), after 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 (4) 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 work; Step 10), the milling work is completed; Step 11), the first adjustment leg (6-7) and the second adjustment leg (6-8) are unlocked; 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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