A production milling device and processing technology of an engine flywheel

Abstract

The application provides a production milling device and a machining process for an engine flywheel, and belongs to the technical field of milling devices. The device comprises a main frame serving as a main support, a horizontal movement driving element arranged at the lower end of the main frame, a horizontal movement frame fixedly installed at the output end of the horizontal movement driving element, a vertical movement driving element fixedly arranged horizontally on the horizontal movement frame, a lifting driving element fixedly arranged at the output end of the vertical movement driving element, and a milling machine for milling the engine flywheel and fixedly installed at the output end of the lifting driving element. The collaborative work of the inner clamping assembly, the outer clamping assembly and the positioning assembly can flexibly switch the clamping mode according to different milling positions, without the need to replace the clamp, effectively solving the problems of time-consuming positioning and unstable clamping in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of milling equipment technology, specifically a milling equipment and processing technology for producing engine flywheels. Background Technology

[0002] As a key component of an engine, the flywheel is typically manufactured using a casting process. However, the surface roughness of a cast flywheel is relatively high, necessitating precision machining of its outer circumferential surface, central hole, and disc-shaped through-holes using milling equipment to meet surface accuracy requirements.

[0003] Current flywheel milling equipment has significant shortcomings in practical applications: operators must manually complete the flywheel positioning and installation process, including repeatedly adjusting positioning pins and other positioning components, resulting in excessively long positioning operations and hindering rapid clamping and release of the flywheel. Furthermore, the flywheel's center hole, disc through-hole, and outer peripheral wall all require milling, and existing equipment lacks the stable clamping capability to adapt to different machining areas. Because the fixtures cannot dynamically adapt to machining requirements, operators must frequently change specialized fixtures, which not only prolongs the machining cycle but also causes the flywheel to easily shift during milling due to insufficient clamping stability, affecting machining accuracy and product yield. Summary of the Invention

[0004] The purpose of this application is to provide a milling equipment and processing technology for producing engine flywheels, which solves the problems of time-consuming manual operation, unstable clamping, and frequent fixture changes.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a milling equipment for producing engine flywheels, including a main frame as a main support, a transverse drive component is provided at the lower end of the main frame, a transverse frame is fixedly installed at the output end of the transverse drive component, a longitudinal drive component is horizontally fixedly provided on the transverse frame, a lifting drive component is fixedly provided at the output end of the longitudinal drive component, and a milling machine for milling engine flywheels is fixedly installed at the output end of the lifting drive component; The upper end of the main frame is fixedly provided with a processing table, and the processing table is fixedly provided with two sets of clamping stations for clamping the engine flywheel. The two sets of clamping stations are used for the fixed clamping of the engine flywheel and the disassembly and assembly of the engine flywheel in turn, so as to realize the continuous processing of the engine flywheel. The clamping station includes a fixed sleeve fixedly installed on the upper end of the processing table. The fixed sleeve has a through hole in the center. A support base is fixedly installed on the side wall of the through hole through the central tube of the sleeve. The upper end of the fixed sleeve has a fan-shaped groove for avoiding flywheel milling. The supporting chassis is provided with an inner clamping assembly for clamping the central circular hole of the engine flywheel, and two sets of outer clamping assemblies for fixing and clamping the outer periphery of the engine flywheel are fixedly provided on the outer periphery of the fixed sleeve. The outer side of the central tube of the sleeve is provided with two sets of positioning components for positioning the through holes on the engine flywheel disk. An adjustment component is provided between the two sets of positioning components and the included angle between the two sets of positioning components can be adjusted by the adjustment component. The support chassis is provided with a positioning drive component for driving the positioning components to rotate and adjust their positions.

[0006] Preferably, the clamping direction of the inner clamping component is perpendicular to the clamping direction of the two sets of outer clamping components. By simultaneously clamping the engine flywheel with the inner and outer clamping components, the engine is limited in different directions, thus ensuring stability during the milling of the engine flywheel.

[0007] Preferably, the external clamping assembly includes an external clamping support fixedly disposed on the outer periphery of the fixed sleeve, an external clamping screw rotatably mounted between the external clamping support and the fixed sleeve, and an external clamping motor for driving the external clamping screw to rotate fixedly disposed on the outer periphery of the external clamping support; a screw slide is threadedly connected to the external clamping screw, a support guide groove is provided at the upper end of the external clamping support for sliding cooperation with the screw slide, and two sets of clamping plate pins are rotatably mounted at the upper end of the screw slide through the support guide groove, and an arc-shaped clamping plate for clamping the outer periphery of the flywheel is fixedly connected to the clamping plate pins.

[0008] Preferably, an outer clamping plate is fixedly provided on the upper end of the lead screw slide, and two sets of connecting supports are rotatably installed on the outer clamping plate. An electric telescopic rod is fixedly installed on the connecting supports, and a clamping plate support that is rotatably connected to the output end of the electric telescopic rod is fixedly provided on the outer periphery of the arc-shaped clamping plate.

[0009] Preferably, the inner clamping assembly includes an inner clamping support fixedly disposed at the lower end of the supporting chassis, an inner clamping top plate fixedly disposed at the upper part of the inner clamping support, an inner clamping limiting groove disposed in the middle of the inner clamping top plate, two sets of driving connecting rods slidably disposed at the inner clamping limiting groove, an inner clamping arc block fixedly disposed at the upper end of the driving connecting rod, the inner clamping arc block extending upward from the upper end of the fixed sleeve to press against the side wall of the flywheel center hole, and an inner clamping drive disposed at the lower part of the inner clamping support for driving the two sets of inner clamping arc blocks to slide.

[0010] Preferably, the inner clamp drive includes an inner clamp connecting plate fixedly disposed at the lower part of the inner clamp support, an inner clamp drive disk is disposed between the inner clamp connecting plate and the inner clamp top plate, the inner clamp drive disk is provided with two sets of drive arc grooves, the two sets of drive connecting rods are slidably connected at the drive arc grooves respectively, and an inner clamp motor for driving the inner clamp drive disk to rotate is fixedly disposed at the lower end of the inner clamp connecting plate.

[0011] Preferably, the positioning component includes a positioning slider slidably disposed on the positioning drive component, a positioning base fixedly disposed at the upper end of the positioning slider, a rodless cylinder fixedly mounted at the lower part of the positioning base, a cylinder slider fixedly connected to the output end of the rodless cylinder, a lifting cylinder fixedly disposed at the upper end of the cylinder slider, and a positioning pin for insertion into the flywheel disc through hole fixedly connected to the output end of the lifting cylinder; a positioning support plate fixedly disposed at the upper end of the positioning base, the positioning support plate slidably disposed at the fan-shaped groove, and a support plate guide groove provided on the positioning support plate for the positioning pin to slide and avoid.

[0012] Preferably, the positioning drive component includes a positioning guide seat rotatably mounted on the outer periphery of the central tube of the sleeve, the upper end of the positioning guide seat is provided with a T-shaped guide groove that slides with the positioning slider; the lower end of the positioning guide seat is fixedly mounted on the driven gear; the lower end of the support chassis is fixedly mounted with a motor support, a drive motor is fixedly mounted on the motor support, and a drive gear that meshes and transmits with the driven gear is fixedly mounted on the output shaft of the drive motor.

[0013] Preferably, the adjustment assembly includes an adjustment support fixedly disposed on the outer periphery of the positioning guide seat. The upper end of the adjustment support is provided with an adjustment guide groove, and adjustment plates are fixedly disposed on both sides of the upper end of the adjustment support. Two sets of symmetrically distributed adjustment sliders are slidably disposed inside the adjustment support. A slider connecting plate is fixedly disposed on the adjustment slider. The slider connecting plate passes through the adjustment guide groove and is fixedly connected to an adjustment driving block. The adjustment driving block is provided with a driving waist hole. An adjustment screw that slides with the driving waist hole is fixedly disposed between the two sets of adjustment plates. Two sets of adjustment nuts are threadedly connected to the adjustment screw, and each set of adjustment nuts has two nuts located on both sides of the adjustment driving block.

[0014] Preferred: A machining process for a milling machine used for producing engine flywheels, comprising the following steps: Step 1: According to the specifications of the annular through hole on the engine flywheel disk, install the corresponding positioning pin, and adjust the included angle between the two sets of positioning components to match the included angle of the adjacent through holes on the flywheel disk surface through the adjustment component. Then place the engine flywheel disk to be processed on the fixed sleeve. Step 2: First, the inner wall of the central through hole of the engine flywheel is clamped by the inner clamping assembly. Then, the outer side wall of the engine flywheel is clamped by two sets of outer clamping assemblies to achieve the machining and fixation of the engine flywheel. The milling machine is driven by the transverse drive, longitudinal drive and lifting drive to mill the upper end face of the engine flywheel and the through hole of the disc body. Step 3: After the through hole of the engine flywheel disc is machined, the positioning drive moves the positioning component to directly below the through hole of the disc. Then, the positioning component moves the positioning pin upward and inserts it into the through hole of the disc. The inner clamping component then releases the top clamping of the engine flywheel center hole. The flywheel center hole is then milled by a milling machine. At this time, the outer clamping component and the positioning component are used to fix and clamp the flywheel during the milling process. Step 4: After the engine flywheel center hole is machined, the inner clamping assembly presses and clamps the inner wall of the flywheel center hole again, and the two sets of outer clamping assemblies cancel the clamping of the outer peripheral side wall of the engine flywheel. The outer peripheral wall of the flywheel is milled by a milling machine. At this time, the flywheel is fixedly clamped by the inner clamping assembly and the positioning assembly for milling. Step 5: While the engine flywheel is being milled at one set of clamping stations, the engine flywheel is clamped at the other set of clamping stations. After the engine flywheel at one set of clamping stations is milled, the milling machine moves to the other set of clamping stations to mill the flywheel clamped there, and then removes the finished flywheel and clamps a new flywheel.

[0015] The beneficial effects of this invention are as follows: By integrating a transverse drive, a longitudinal drive, a lifting drive, and a milling machine, along with two sets of continuously operating clamping stations, and the ingeniously designed internal clamping components, external clamping components, and positioning components within the clamping stations, automated, high-precision, and continuous milling of the engine flywheel is achieved. In particular, the coordinated operation of the internal clamping components, external clamping components, and positioning components allows for flexible switching of clamping methods according to different milling parts, eliminating the need to change fixtures. This effectively solves the problems of time-consuming positioning and unstable clamping in existing technologies, significantly improving production efficiency and processing quality. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is an isometric structural schematic diagram of the entire invention; Figure 3 This is a three-dimensional structural diagram of the clamping station of the present invention; Figure 4 This is an isometric structural diagram of the clamping station of the present invention; Figure 5 This is a top view of the clamping station structure of the present invention; Figure 6 This is the present invention. Figure 5 Schematic diagram of the cross-sectional structure along the AA direction; Figure 7 This is a three-dimensional structural schematic diagram of the positioning drive component of the present invention; Figure 8 This is an isometric structural diagram of the positioning drive component of the present invention; Figure 9 This is a schematic diagram of the internal clamping component of the present invention; Figure 10 This is a schematic diagram of the assembly structure of the positioning component and the adjustment component of the present invention; Figure 11 This is a schematic diagram of the positioning component of the present invention; Figure 12 This is a schematic diagram of the structure of the adjustment component of the present invention.

[0018] In the diagram: 1. Main frame; 2. Machining table; 3. Transverse drive; 4. Transverse frame; 5. Longitudinal drive; 6. Lifting drive; 7. Milling machine; 8. Clamping station; 81. Fixed sleeve; 811. Sector groove; 82. Sleeve center tube; 83. External clamping assembly; 831. External clamping support; 8311. Support guide groove; 832. External clamping motor; 833. External clamping lead screw 834. Lead screw slide; 835. Clamping pin; 836. Arc-shaped clamping plate; 8361. Clamping plate support; 837. Outer clamping support plate; 838. Connecting support; 839. Electric telescopic rod; 84. Inner clamping assembly; 841. Inner clamping support; 842. Inner clamping top plate; 8421. Inner clamping limiting groove; 843. Inner clamping connecting plate; 844. Inner clamping motor; 845. Inner clamping drive disc; 8451. Drive arc groove; 846. Drive connecting rod; 847. Inner clamping arc block; 85. Positioning assembly; 851. Positioning slider; 852. Positioning base; 853. Rodless cylinder; 854. Cylinder slider; 855. Lifting cylinder; 856. Positioning pin; 857. Positioning support plate; 858. Support plate guide groove; 86. Adjustment assembly; 861. Adjustment support; 862. Adjustment guide groove; 863. Adjustment slider; 864. Adjustment upright plate; 865. Slider connecting plate; 866. Adjustment drive block; 8661. Drive waist hole; 867. Adjustment screw; 87. Positioning drive component; 871. Positioning guide seat; 872. T-shaped guide groove; 873. Driven gear; 874. Motor support; 875. Drive motor; 876. Drive gear; 88. Support chassis. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Traditional flywheel milling equipment suffers from drawbacks such as time-consuming manual positioning and installation, and an inability to quickly position, release, and disassemble the flywheel. Furthermore, the center hole, disc hole, and outer peripheral wall of the engine flywheel all require milling, and existing equipment cannot stably clamp these different parts of the flywheel, necessitating the use of different fixtures to accommodate the milling operations.

[0021] For this, please refer to Figures 1-12 As shown, this application proposes a milling equipment for producing engine flywheels, which includes a main frame 1 as the main support, a transverse drive 3 at the lower end of the main frame 1, a transverse frame 4 fixedly mounted at the output end of the transverse drive 3, a longitudinal drive 5 horizontally fixedly mounted on the transverse frame 4, a lifting drive 6 fixedly mounted at the output end of the longitudinal drive 5, and a milling machine 7 for milling the engine flywheel fixedly mounted at the output end of the lifting drive 6; a processing table 2 fixedly mounted at the upper end of the main frame 1, and two sets of clamping stations 8 fixedly mounted on the processing table 2 for clamping the engine flywheel, the two sets of clamping stations 8 being used sequentially for fixing and clamping the engine flywheel and for disassembling and assembling the engine flywheel, realizing continuous processing of the engine flywheel; the clamping station 8 includes a fixedly mounted part on the processing table 2. The fixed sleeve 81 has a through hole at its center. A support base 88 is fixedly installed on the side wall of the through hole through the central tube 82 of the sleeve. The upper end of the fixed sleeve 81 has a fan-shaped groove 811 for avoiding the milling of the flywheel. The support base 88 has an inner clamping component 84 for clamping the central circular hole of the engine flywheel. Two sets of outer clamping components 83 for clamping the outer periphery of the engine flywheel are fixedly installed on the outer periphery of the fixed sleeve 81. Two sets of positioning components 85 for positioning the through hole on the surface of the engine flywheel are installed on the outside of the central tube 82 of the sleeve. An adjustment component 86 is provided between the two sets of positioning components 85 and the included angle between the two sets of positioning components 85 is adjusted by the adjustment component 86. The support base 88 has a positioning drive component 87 for driving the positioning components 85 to rotate and adjust their positions.

[0022] In one implementation, the main frame 1 can be a welded steel structure or a cast structure to provide basic support for the equipment. The transverse drive 3 can be driven by a linear motor, rack and pinion mechanism, or ball screw, moving the transverse frame 4 horizontally. Guide rails can be installed on the transverse frame 4 for the longitudinal drive 5 to move. The longitudinal drive 5 can also be driven by a linear motor, rack and pinion mechanism, or ball screw, moving the lifting drive 6 longitudinally. The lifting drive 6 can be composed of a cylinder, hydraulic cylinder, or a ball screw mechanism driven by a servo motor, realizing the vertical lifting of the milling machine 7. The milling machine 7 can use a high-speed spindle motor-driven milling cutter for milling the engine flywheel.

[0023] The processing table 2 can be made of thick steel plate or cast iron plate and is fixed to the upper end of the main frame 1 to provide a stable working surface. Two sets of clamping stations 8 can be arranged side by side on the processing table 2. When the flywheel on one set of clamping stations 8 is being milled, the other set of clamping stations 8 can be used for manual loading or unloading of the flywheel, thereby realizing continuous and uninterrupted production and improving the utilization rate of the equipment.

[0024] The fixed sleeve 81 of the clamping station 8 can be a cylindrical or square base, fixed to the machining table 2 by bolts. Its central through hole can be a simple circular hole to accommodate the sleeve's central tube 82. The sleeve's central tube 82 can be a hollow circular tube, fixed to the side wall of the through hole by press fitting or welding. The supporting base 88 can be a circular or polygonal plate structure, fixed to the inside or bottom of the sleeve's central tube 82 by bolts or welding. The fan-shaped groove 811 at the upper end of the fixed sleeve 81 can be formed by machining, and its size and position are designed so that the milling cutter can pass smoothly during the operation of the milling machine 7, avoiding collision with the fixed sleeve 81.

[0025] The internal clamping assembly 84 may include a plurality of radially arranged clamping blocks that expand outward during operation via a simple spring mechanism or a manual screw mechanism, pressing against the inner wall of the central circular hole of the engine flywheel, thereby achieving internal clamping of the flywheel.

[0026] The external clamping assembly 83 may include a plurality of radially arranged jaws that retract inward during operation via a simple lever mechanism or manual bolt mechanism to clamp the outer peripheral sidewall of the engine flywheel, thereby achieving external fixed clamping of the flywheel.

[0027] The positioning component 85 may include one or more positioning pins that extend upward and are inserted into through holes on the engine flywheel disk via a simple cylinder or manual push rod mechanism, thereby achieving precise radial and angular positioning of the flywheel.

[0028] The adjusting component 86 can consist of a simple slide and a manual locking bolt. Two sets of positioning components 85 can be installed on the slide. The distance between them can be adjusted by manually sliding and locking the bolt, thereby changing the included angle of the two sets of positioning components 85 to adapt to the spacing of different flywheel disc through holes.

[0029] The positioning drive 87 can be a simple rotary table, which can be rotated manually or driven by a stepper motor to rotate the positioning component 85 mounted on it, thereby adjusting the position of the positioning component 85 so that it is aligned with the through hole on the flywheel disc.

[0030] The engine flywheel milling equipment of this embodiment achieves continuous processing by setting up two sets of clamping stations 8. Combined with the multi-functional clamping and positioning of the inner clamping assembly 84, outer clamping assembly 83, and positioning assembly 85, it effectively solves the problems of time-consuming positioning operations and the inability to quickly position and release in traditional flywheel milling. Simultaneously, this equipment can stably clamp the center hole, outer peripheral wall, and disc through hole of the engine flywheel without changing fixtures, significantly improving processing efficiency and flexibility.

[0031] In some of the embodiments described above in this application, an inner clamping assembly and an outer clamping assembly are proposed for clamping an engine flywheel. However, in the implementation process, the clamping directions may not be perpendicular to each other, resulting in an uneven distribution of clamping force. This makes it impossible to simultaneously and effectively limit the flywheel center hole and the outer peripheral sidewall, which can easily cause flywheel displacement or vibration during milling, affecting machining accuracy and stability.

[0032] In this regard, this application further proposes that the clamping direction of the inner clamping component 84 is perpendicular to the clamping direction of the two sets of outer clamping components 83. By simultaneously clamping the engine flywheel with the inner clamping component 84 and the outer clamping components 83, the engine can be limited in different directions, thereby stabilizing the milling process of the engine flywheel.

[0033] Specifically, the clamping direction of the inner clamping assembly 84 is perpendicular to the clamping directions of the two sets of outer clamping assemblies 83. This technical feature clarifies the directional relationship between the clamping forces applied by the inner clamping assembly 84 and the outer clamping assembly 83 to the engine flywheel. The inner clamping assembly 84 is typically used to clamp the central circular hole of the flywheel, and its clamping force direction is typically radially outward or axial. The outer clamping assembly 83 is typically used to clamp the outer peripheral sidewall of the flywheel, and its clamping force direction is typically radially inward. When the clamping directions are perpendicular to each other, it means that one assembly provides radial clamping force and the other assembly provides axial clamping force, or that both provide orthogonal radial clamping force components.

[0034] Through the above technical solution, this application can achieve limiting of the engine in different directions, and this technical feature clarifies the functional effect achieved by the above clamping method. Limiting refers to restricting the movement of the engine flywheel in various degrees of freedom that may occur during the machining process, including radial, axial, and rotational directions. By applying clamping forces in different directions, the flywheel can be effectively fixed, preventing displacement or vibration under the action of milling forces. For example, when the inner clamping assembly 84 provides radially outward support and the outer clamping assembly 83 provides radially inward constraint, the flywheel is effectively limited in the horizontal radial plane. At the same time, if one or both of the assemblies also provide axial support or clamping force, the flywheel is also limited in the vertical axis.

[0035] By designing the clamping direction of the inner clamping assembly 84 to be perpendicular to the clamping directions of the two sets of outer clamping assemblies 83, this application can effectively limit the engine flywheel in different directions such as radial and axial. Specifically, when the inner clamping assembly 84 applies radial or axial clamping force to the flywheel's central hole, the outer clamping assembly 83 applies clamping force to the flywheel's outer circumference in a direction perpendicular to that direction. For example, one provides radial support, and the other provides axial compression, or the two form orthogonal constraints in different radial directions. This orthogonal or perpendicular distribution of clamping forces can form a mutually constraining mechanical balance, effectively preventing the flywheel from sliding or tilting in a single direction during milling. Based on this, by simultaneously clamping the engine flywheel with the inner clamping assembly 84 and the outer clamping assembly 83, initial displacement or attitude deviation of the flywheel during clamping due to inconsistent clamping timing is avoided. Synchronous clamping ensures that the flywheel is firmly fixed in multiple orthogonal directions before being subjected to milling forces, thus being in a highly stable state at the start of machining. Given the aforementioned vertical clamping and synchronous clamping mechanism, this application effectively solves the problem of flywheel displacement or vibration caused by uneven clamping force distribution in the prior art. This multi-directional, synchronous limiting method provides comprehensive and rigid support for the milling of the engine flywheel, significantly improving the stability of the machining process, thereby ensuring milling accuracy and surface quality, reducing scrap rate, and extending tool life.

[0036] In some of the embodiments described above in this application, an external clamping assembly is proposed for fixing and clamping the outer periphery of the engine flywheel. However, in its implementation, the clamping operation may not be fast or accurate enough, resulting in low processing efficiency and unstable positioning, making it impossible to achieve automated and rapid clamping and release, thus affecting the efficiency of continuous processing.

[0037] For this, please refer to Figures 3-6 As shown, this application further proposes a specific structure of an external clamping assembly 83, which includes an external clamping support 831 fixedly disposed on the outer periphery of a fixed sleeve 81, an external clamping screw 833 rotatably mounted between the external clamping support 831 and the fixed sleeve 81, and an external clamping motor 832 for driving the external clamping screw 833 to rotate fixedly disposed on the outer periphery of the external clamping support 831; a screw slide 834 is threadedly connected to the external clamping screw 833, a support guide groove 8311 is provided at the upper end of the external clamping support 831 for slidingly engaging with the screw slide 834, and two sets of clamping plate pins 835 are rotatably mounted at the upper end of the screw slide 834 through the support guide groove 8311, and an arc-shaped clamping plate 836 for clamping the outer periphery of a flywheel is fixedly connected to the clamping plate pins 835.

[0038] Through the above technical solution, the external clamping motor 832 drives the external clamping screw 833 to rotate, which in turn drives the screw slide 834 to slide precisely along the support guide groove 8311, thereby enabling the arc-shaped clamping plate 836 to automatically and quickly clamp or release the outer circumference of the engine flywheel. The high precision and self-locking characteristics of the screw drive mechanism, combined with the guiding effect of the support guide groove 8311, ensure that the arc-shaped clamping plate 836 can move accurately and apply a stable clamping force. At the same time, the clamping plate pin 835 allows the arc-shaped clamping plate 836 to rotate, so that it can better conform to the curved surface of the flywheel's outer circumference, providing a uniform contact area and clamping force, effectively preventing displacement or vibration of the flywheel during milling, thus ensuring the accuracy and stability of the machining. This automated, fast, and stable clamping method significantly reduces manual operation time, improves clamping and release efficiency, enables continuous production of engine flywheel milling, and improves the overall production efficiency of the equipment.

[0039] In some of the embodiments described above in this application, an external clamping assembly is proposed to fix and clamp the outer periphery of the engine flywheel. However, in its implementation, the angle of the clamping mechanism is fixed and lacks adjustability, which causes the arc-shaped clamping plate to be unable to adapt to the curvature changes of the outer periphery of the flywheel, resulting in uneven distribution of clamping force and affecting the stability and accuracy of milling.

[0040] For this, please refer to Figures 3-6 As shown, an outer clamping plate 837 is fixedly installed on the upper end of the lead screw slide 834. Two sets of connecting supports 838 are rotatably installed on the outer clamping plate 837. An electric telescopic rod 839 is fixedly installed on the connecting supports 838. A clamping plate support 8361 that is rotatably connected to the output end of the electric telescopic rod 839 is fixedly installed on the outer periphery of the arc-shaped clamping plate 836.

[0041] Through the above technical solution, a multi-level adjustable clamping mechanism is introduced into the external clamping assembly 83. Specifically, the external clamping support plate 837 set at the upper end of the lead screw slide 834 provides a stable base for the entire adjustment mechanism, ensuring the stability of the clamping process. The two sets of connecting supports 838 rotatably mounted on the external clamping support plate 837 enable the arc-shaped clamping plate 836 to adaptively adjust its angle according to the curvature change of the outer circumference of the engine flywheel, avoiding the uneven fit problem caused by fixed-angle clamping. The electric telescopic rod 839 fixedly mounted on the connecting support 838 provides a precise linear telescopic driving force, which can dynamically adjust the clamping position and clamping force of the arc-shaped clamping plate 836, thereby adapting to engine flywheels of different sizes and shapes. At the same time, the rotatable connection between the clamping plate support 8361 on the outer circumference of the arc-shaped clamping plate 836 and the output end of the electric telescopic rod 839 further enhances the adaptability of the arc-shaped clamping plate 836 when contacting the flywheel, ensuring that it can fit the flywheel surface in the best posture. Therefore, this embodiment of the present application effectively solves the problem in the prior art where the clamping mechanism has a fixed angle and lacks adjustability, resulting in the arc-shaped clamping plate being unable to adapt to changes in the outer circumferential surface of the flywheel. Through the precise control of the electric telescopic rod 839 and multi-stage rotational connection, the arc-shaped clamping plate 836 can always maintain uniform contact with the outer circumference of the engine flywheel, thereby achieving stable and reliable clamping. This not only significantly improves the stability during milling and reduces vibration and machining errors caused by uneven clamping, but also improves machining accuracy and efficiency, extends the service life of the fixture, and provides a solid guarantee for the continuous machining of the engine flywheel.

[0042] In some of the embodiments described above in this application, an internal clamping assembly is proposed for clamping the central circular hole of the engine flywheel. However, in its implementation, the clamping operation may not be stable or efficient enough, and a more reliable structure is needed to achieve precise clamping in order to avoid flywheel displacement or loosening during milling.

[0043] For this, please refer to Figures 3-6 as well as Figure 9 As shown, this application further proposes an improved inner clamping assembly 84, which includes an inner clamping support 841 fixedly disposed at the lower end of a supporting chassis 88. An inner clamping top plate 842 is fixedly disposed on the upper part of the inner clamping support 841. An inner clamping limiting groove 8421 is disposed in the middle of the inner clamping top plate 842. Two sets of driving connecting rods 846 are slidably disposed at the inner clamping limiting groove 8421. An inner clamping arc block 847 is fixedly disposed on the upper end of the driving connecting rod 846. The inner clamping arc block 847 extends upward from the upper end of the fixed sleeve 81 to press against the side wall of the flywheel center hole. An inner clamping drive is disposed on the lower part of the inner clamping support 841 for driving the two sets of inner clamping arc blocks 847 to slide.

[0044] Through the above technical solution, the inner clamping assembly 84 of this application can effectively solve the problems of instability and low efficiency that may occur during the clamping process of the engine flywheel center hole. Specifically, the inner clamping support 841, as a stable base, provides a solid foundation for the entire clamping mechanism, ensuring that the clamping system will not shake or deform under the strong force of milling. The inner clamping top plate 842 and its internal inner clamping limiting groove 8421 provide precise guidance for the drive connecting rod 846, making the sliding trajectory of the inner clamping arc block 847 highly controllable, thereby ensuring the accuracy and repeatability of the clamping action. The two sets of inner clamping arc blocks 847 adopt an arc-shaped design, which can achieve large-area and uniform contact with the inner wall of the engine flywheel center hole, effectively dispersing clamping stress, avoiding damage to the flywheel, and providing strong radial clamping force, thereby firmly fixing the flywheel during the milling process and preventing its radial or axial displacement. Furthermore, the internal clamping drive enables automated sliding of the internal clamping block 847, greatly improving clamping and releasing efficiency, reducing the tedium of manual operation, and allowing for smooth continuous machining of the engine flywheel. Overall, the internal clamping assembly 84, through its ingenious structural design and coordinated operation, significantly enhances the clamping stability, accuracy, and operational efficiency of the engine flywheel center hole, providing reliable workpiece fixation for subsequent milling operations.

[0045] In some of the embodiments described above in this application, an internal clamping drive is proposed to drive the internal clamping arc block to slide and clamp the flywheel center hole. However, in its implementation, the specific structure of the internal clamping drive may not be compact or efficient enough, resulting in inaccurate clamping action or slow response speed, which affects the stability and efficiency of the overall milling process.

[0046] For this, please refer to Figures 3-6 as well as Figure 9 As shown, the inner clamp drive includes an inner clamp connecting plate 843 fixedly disposed at the lower part of the inner clamp support 841. An inner clamp drive disk 845 is disposed between the inner clamp connecting plate 843 and the inner clamp top plate 842. The inner clamp drive disk 845 is provided with two sets of drive arc grooves 8451. Two sets of drive connecting rods 846 are slidably connected to the drive arc grooves 8451 respectively. An inner clamp motor 844 for driving the inner clamp drive disk 845 to rotate is fixedly disposed at the lower end of the inner clamp connecting plate 843.

[0047] Through the above technical solution, the internal clamping drive system uses an internal clamping motor 844 to drive the internal clamping drive disk 845 to rotate. The drive arc groove 8451 on the internal clamping drive disk 845 converts the rotational motion into the linear sliding of the drive connecting rod 846, thereby driving the internal clamping arc block 847 to achieve top-pressure clamping of the engine flywheel center hole. This structural design makes the entire internal clamping drive system compact and efficient, avoiding the problems of backlash accumulation and transmission efficiency loss that may exist in traditional mechanical structures. The internal clamping connecting plate 843, which is fixedly set at the lower part of the internal clamping support 841, provides a solid mounting foundation for the entire drive system, ensuring the stability and repeatability of the clamping action. The cooperation between the internal clamping drive disk 845 and the drive arc groove 8451 can accurately guide the movement trajectory of the drive connecting rod 846, effectively avoiding jamming or shaking during the clamping process, thereby significantly improving the accuracy and response speed of the clamping action. Therefore, this application can ensure that the engine flywheel is always in a stable clamping state during the milling process, effectively improving the accuracy and efficiency of milling and reducing machining defects caused by unstable clamping.

[0048] In some of the embodiments described above in this application, a positioning component is proposed for positioning the through hole on the engine flywheel disk. However, in this process, the positioning operation may not be accurate or efficient enough, and a more optimized structure is needed to achieve rapid positioning and release, avoiding the time-consuming problem caused by manual intervention.

[0049] In this regard, this application further proposes a milling machine for producing engine flywheels; please refer to [link to relevant documentation]. Figures 3-6 , Figure 10 and Figure 11 As shown, the positioning component 85 includes a positioning slider 851 slidably disposed on the positioning drive component 87. A positioning base 852 is fixedly disposed on the upper end of the positioning slider 851. A rodless cylinder 853 is fixedly installed on the lower part of the positioning base 852. A cylinder slider 854 is fixedly connected to the output end of the rodless cylinder 853. A lifting cylinder 855 is fixedly disposed on the upper end of the cylinder slider 854. A positioning pin 856 for inserting into the through hole of the flywheel disc is fixedly connected to the output end of the lifting cylinder 855. A positioning support plate 857 is fixedly disposed on the upper end of the positioning base 852. The positioning support plate 857 is slidably disposed at the fan-shaped groove 811. A support plate guide groove 858 is provided on the positioning support plate 857 for the positioning pin 856 to slide and avoid.

[0050] Through the above technical solution, this application optimizes the structural design of the positioning component 85, solving the problem of insufficient precision and efficiency in positioning operations during flywheel milling. Specifically, the positioning slider 851 is slidably mounted on the positioning drive component 87, enabling the positioning component 85 to move precisely horizontally as a whole to adapt to flywheel disc through holes at different positions. The positioning base 852 provides a stable mounting foundation for the subsequent rodless cylinder 853 and lifting cylinder 855. The rodless cylinder 853, through its output cylinder slider 854, achieves rapid horizontal displacement of the positioning pin 856, thereby quickly moving the positioning pin 856 below the target through hole. The lifting cylinder 855 is responsible for driving the positioning pin 856 to rise and fall vertically, enabling it to accurately insert or remove from the flywheel disc through hole, ensuring positioning accuracy and efficiency. Furthermore, the positioning support plate 857, fixedly mounted on the upper end of the positioning base 852, is slidably mounted in the fan-shaped groove 811 of the processing table 2 on the main frame 1. This not only enhances the overall structural strength of the positioning assembly 85, but also provides precise guidance and clearance space for the lifting and lowering of the positioning pin 856 through the support plate guide groove 858, effectively avoiding interference and ensuring smooth operation. This structural design automates and refines the flywheel positioning process, significantly reducing manual intervention and improving production efficiency and processing stability. Especially in continuous processing scenarios, it enables rapid positioning and release of the flywheel, thereby effectively solving the problem of time-consuming positioning operations in existing technologies.

[0051] In some of the embodiments described above in this application, a positioning drive is proposed to drive the positioning component to rotate and adjust its position. However, in its implementation, the lack of a specific driving mechanism may lead to inaccurate rotation adjustment, complex operation, or low efficiency, and may fail to meet the fast and accurate positioning requirements of the flywheel disc through hole.

[0052] In this regard, this application further proposes a milling machine for producing engine flywheels; please refer to [link to relevant documentation]. Figures 4-8 As shown, the positioning drive component 87 includes a positioning guide seat 871 rotatably mounted on the outer periphery of the central tube 82 of the sleeve. The upper end of the positioning guide seat 871 is provided with a T-shaped guide groove 872 that slides with the positioning slider 851. The lower end of the positioning guide seat 871 is fixedly mounted on the driven gear 873. The lower end of the support chassis 88 is fixedly mounted with a motor support 874. A drive motor 875 is fixedly mounted on the motor support 874. A drive gear 876 that meshes and transmits with the driven gear 873 is fixedly mounted on the output shaft of the drive motor 875.

[0053] Through the above technical solution, this application provides a compact, precise, and highly automated positioning drive mechanism. The drive motor 875 transmits precise rotational power to the positioning guide seat 871 through the meshing of the driving gear 876 and the driven gear 873. The rotation of the positioning guide seat 871, combined with the sliding engagement of the T-shaped guide groove 872 and the positioning slider 851, precisely drives the positioning component 85 to rotate and adjust. This gear transmission method has advantages such as stable transmission ratio, high load-bearing capacity, and long service life, ensuring the accuracy and reliability of the rotational adjustment of the positioning component 85. Compared with traditional manual positioning or simple drive methods, this solution achieves automated and high-precision rotational adjustment of the positioning component 85, significantly improving the speed and accuracy of flywheel disc through-hole positioning, effectively avoiding errors and inefficiencies caused by manual operation, thus meeting the demand for rapid and precise positioning during continuous processing of engine flywheels, and further improving the overall production efficiency and processing quality of the equipment.

[0054] In some of the embodiments described above in this application, an adjustment component is proposed to adjust the included angle of the two sets of positioning components to match the included angle of the adjacent through holes on the flywheel disk surface. However, in its implementation, the existing adjustment method may not be accurate enough or the operation is cumbersome, resulting in low positioning efficiency and affecting the continuity and accuracy of flywheel milling.

[0055] For this, please refer to Figures 3-6 , Figure 10 and Figure 12 As shown, this application further proposes an adjustment assembly 86, which includes an adjustment support 861 fixedly disposed on the outer periphery of a positioning guide seat 871. The upper end of the adjustment support 861 is provided with an adjustment guide groove 862, and adjustment plates 864 are fixedly disposed on both sides of the upper end of the adjustment support 861. Two sets of symmetrically distributed adjustment sliders 863 are slidably disposed inside the adjustment support 861. A slider connecting plate 865 is fixedly disposed on the adjustment slider 863. The slider connecting plate 865 passes through the adjustment guide groove 862 and is fixedly connected to an adjustment driving block 866. The adjustment driving block 866 is provided with a driving waist hole 8661. An adjustment screw 867 that slides with the driving waist hole 8661 is fixedly disposed between the two sets of adjustment plates 864. Two sets of adjustment nuts are threadedly connected to the adjustment screw 867, and each set of adjustment nuts has two nuts located on both sides of the adjustment driving block 866.

[0056] Through the above technical solution, the adjustment component 86 provides a precise, stable, and easy-to-operate angle adjustment mechanism. The fixed connection between the adjustment support 861 and the positioning guide seat 871 ensures the overall rigidity of the adjustment mechanism. The cooperation between the adjustment guide groove 862 and the adjustment slider 863 ensures the linear motion accuracy during the adjustment process. The combination of the adjustment screw 867 and the double adjustment nuts enables micron-level precise adjustment and effectively eliminates transmission backlash, preventing angle deviation caused by vibration during milling. This design allows operators to quickly and accurately adjust the angle of the two sets of positioning components 85 to match the angle of the adjacent through holes on the engine flywheel disc, greatly improving the efficiency and accuracy of flywheel positioning. Compared with the traditional cumbersome manual positioning method, this solution significantly reduces manual operation time, lowers the operational difficulty, and ensures positioning consistency during continuous processing, thereby improving the overall production efficiency and product quality of engine flywheel milling.

[0057] In some of the solutions described above in this application, a milling machine with features such as a clamping station and a positioning component is proposed to perform milling of a flywheel. However, in this process, the machine operation efficiency is low, and it is impossible to achieve continuous processing and quick switching of clamping methods, resulting in low processing efficiency.

[0058] In this regard, this application further proposes a machining process for a milling machine used for producing engine flywheels, including the following steps: Step 1: According to the specifications of the annular through hole on the engine flywheel disk, install the corresponding positioning pin 856, and adjust the included angle between the two sets of positioning components 85 through the adjusting component 86 to match the included angle of the adjacent through hole on the flywheel disk. Then place the engine flywheel disk to be processed on the fixed sleeve 81. Step 2: First, the inner wall of the central through hole of the engine flywheel is clamped by the inner clamping component 84. Then, the outer side wall of the engine flywheel is clamped by the two sets of outer clamping components 83 to achieve the machining and fixation of the engine flywheel. The milling machine 7 is driven by the transverse drive component 3, the longitudinal drive component 5 and the lifting drive component 6 to perform milling machining on the upper end face of the engine flywheel and the through hole of the disc body. Step 3: After the through hole of the engine flywheel disc is machined, the positioning drive 87 drives the positioning component 85 to move directly below the through hole of the disc. Then, the positioning component 85 drives the positioning pin 856 to move upward and insert it into the through hole of the disc. Then, the inner clamping component 84 removes the top pressure clamping on the center hole of the engine flywheel. The center hole of the flywheel is milled by the milling machine 7. At this time, the outer clamping component 83 and the positioning component 85 are used to fix and clamp the flywheel during milling. Step 4: After the engine flywheel center hole is machined, the inner clamping assembly 84 presses and clamps the inner wall of the flywheel center hole again, and the two sets of outer clamping assemblies 83 cancel the clamping of the outer peripheral side wall of the engine flywheel. The flywheel is milled by the milling machine 7. At this time, the flywheel is fixedly clamped by the milling machining of the inner clamping assembly 84 and the positioning assembly 85. Step 5: While the engine flywheel is being milled on one set of clamping stations 8, the engine flywheel is clamped on the other set of clamping stations 8. After the engine flywheel on one set of clamping stations 8 is milled, the milling machine 7 moves above the other set of clamping stations 8 to mill the flywheel clamped thereon, and then removes the milled flywheel and clamps a new flywheel.

[0059] Through the above technical solutions, the processing technology of this application effectively solves the problems of low equipment operating efficiency, inability to achieve continuous processing, and low processing efficiency caused by rapid switching of clamping methods in the prior art. Specifically, in step one, by pre-installing the positioning pin 856 according to the flywheel specifications and adjusting the included angle of the positioning component 85 using the adjusting component 86, rapid adaptation and precise positioning of flywheels of different specifications are achieved, significantly shortening the preparation time. In step two, the flywheel is bidirectionally clamped by the inner clamping component 84 and the outer clamping component 83, ensuring the high stability of the flywheel during the initial milling (upper end face and disc body through hole), avoiding displacement and vibration during processing, and improving processing accuracy. In steps three and four, this application innovatively realizes dynamic switching of clamping methods. After the disc body through hole is processed, the positioning pin 856 is inserted into the disc body through hole through the positioning drive component 87 and the positioning component 85, and the clamping of the inner clamping component 84 is canceled. Instead, the flywheel is fixed by the outer clamping component 83 and the positioning component 85 for center hole milling. Subsequently, after the center hole is machined, the inner clamping assembly 84 is activated again and the outer clamping assembly 83 is removed. The flywheel is then fixed together by the inner clamping assembly 84 and the positioning assembly 85 for peripheral milling. This strategy of flexibly switching clamping methods according to different machining parts not only ensures the stability and accuracy of each machining stage but also avoids the cumbersome operation of frequently changing fixtures in traditional methods, greatly improving the continuity and efficiency of machining. In addition, by setting up two sets of clamping stations 8 in step five and achieving parallel operation, that is, while milling is performed at one station, the flywheel is clamped and unloaded at the other station. Through the rapid switching of the milling machine 7, the utilization rate of the equipment is maximized, and continuous uninterrupted production of engine flywheels is achieved, thereby significantly improving the overall production efficiency. In summary, the machining process of this application, through precise positioning, multi-mode clamping switching, and dual-station parallel operation, forms a set of efficient, stable, and continuous engine flywheel milling machining solutions, effectively overcoming the shortcomings of low operating efficiency and discontinuous machining in the prior art.

[0060] The following example will provide a more detailed explanation of the above technical solution: In an engine flywheel production workshop, a large number of cast engine flywheels need to be milled to improve their surface finish. Traditional milling equipment requires manual operation of locating pins during flywheel positioning and installation, which is time-consuming and inefficient. Furthermore, when milling the center hole, disc hole, and outer peripheral wall of the flywheel, frequent fixture changes are required, leading to processing interruptions and reduced production efficiency.

[0061] This equipment provides a solution. The equipment includes a main frame 1 serving as the main support. A transverse drive 3 is mounted at the lower end of the main frame 1, and its output end is fixedly connected to a transverse frame 4. A longitudinal drive 5 is horizontally fixedly mounted on the transverse frame 4, and a lifting drive 6 is fixedly mounted at the output end of the longitudinal drive 5. A milling machine 7 for milling the engine flywheel is fixedly mounted at the output end of the lifting drive 6. This three-axis linkage structure allows the milling machine 7 to move precisely in the X, Y, and Z directions, covering the machining area.

[0062] A machining table 2 is fixedly mounted on the upper end of the main frame 1. Two sets of clamping stations 8 are fixedly mounted on the machining table 2. The design of these two sets of clamping stations 8 is to realize continuous machining of the engine flywheel, that is, while one set of stations is performing milling, the other set of stations can simultaneously clamp or remove the flywheel. This significantly improves production efficiency and avoids downtime caused by clamping waiting in traditional equipment.

[0063] Taking one set of clamping stations 8 as an example, it includes a fixed sleeve 81 fixedly mounted on the upper end of the machining table 2. The fixed sleeve 81 has a through hole in its center, and a support base 88 is fixedly mounted on the side wall of the through hole through the central tube 82 of the sleeve. The upper end of the fixed sleeve 81 is also provided with a fan-shaped groove 811 for avoiding flywheel milling, ensuring that the milling tool will not interfere with the fixed sleeve 81 during the machining process.

[0064] An inner clamping assembly 84 is provided on the supporting chassis 88 for clamping the central circular hole of the engine flywheel. Simultaneously, two sets of outer clamping assemblies 83 are fixedly mounted on the outer periphery of the fixed sleeve 81 for fixing and clamping the outer periphery of the engine flywheel. In actual operation, the clamping direction of the inner clamping assembly 84 is perpendicular to the clamping directions of the two sets of outer clamping assemblies 83. This design allows the inner clamping assembly 84 and the outer clamping assemblies 83 to clamp the engine flywheel simultaneously, limiting its position from different directions, thus providing extremely high stability during milling and solving the problem of unstable clamping when milling different parts using traditional equipment.

[0065] Two sets of positioning components 85 are provided on the outside of the central tube 82 of the mounting base for positioning the through holes on the engine flywheel disc. These two sets of positioning components 85 are connected by an adjusting component 86, and the included angle between the two sets of positioning components 85 is adjusted by the adjusting component 86 to adapt to the included angle of adjacent through holes on flywheel discs of different specifications. The supporting chassis 88 is also provided with a positioning drive component 87 for driving the positioning components 85 to rotate and adjust their positions. This positioning system realizes automated and precise alignment of the flywheel, eliminating the need for manual operation of the positioning pins, greatly shortening the positioning time and improving the degree of automation.

[0066] Specifically, when an engine flywheel to be machined is placed on the fixed sleeve 81, firstly, the inner clamping assembly 84 extends upward through its inner clamping arc block 847, pressing against the side wall of the flywheel's central hole to achieve initial clamping of the flywheel's central hole. Subsequently, the arc-shaped clamping plates 836 of the two sets of outer clamping assemblies 83 press and clamp against the outer peripheral side wall of the engine flywheel. At this time, the flywheel is stably clamped from two vertical directions by the inner clamping assembly 84 and the outer clamping assembly 83, providing a solid foundation for milling.

[0067] Next, the transverse drive 3, the longitudinal drive 5, and the lifting drive 6 work together to drive the milling machine 7 to mill the upper end face of the engine flywheel and the through hole of the disc.

[0068] After the through hole of the engine flywheel disc is machined, the positioning drive 87 drives the positioning assembly 85 to move directly below the through hole. The lifting cylinder 855 in the positioning assembly 85 drives the positioning pin 856 to move upward, precisely inserting it into the through hole, thus achieving secondary positioning of the flywheel. At this time, the inner clamping assembly 84 releases its top clamping of the engine flywheel center hole. When the milling machine 7 mills the flywheel center hole, the flywheel is jointly clamped by the outer clamping assembly 83 and the positioning assembly 85 to ensure the stability of the machining process. This flexible switching between multiple clamping and positioning methods avoids the cumbersome operation of changing fixtures required by traditional equipment.

[0069] After the engine flywheel center hole is machined, the inner clamping assembly 84 will again press and clamp the inner wall of the flywheel center hole. Simultaneously, the two sets of outer clamping assemblies 83 will release their clamping of the outer peripheral wall of the engine flywheel. At this point, the milling machine 7 performs milling on the outer periphery of the flywheel, with the flywheel being jointly clamped and fixed by the inner clamping assembly 84 and the positioning assembly 85. This ability to dynamically adjust the clamping method according to different machining parts allows the equipment to complete all milling operations on the flywheel in one station without manual intervention or fixture changes, greatly improving machining efficiency and accuracy.

[0070] Throughout the machining process, while the engine flywheel at one set of clamping stations 8 is being milled, the other set of clamping stations 8 can simultaneously clamp or remove the engine flywheel. Once the flywheel milling at the first set of stations is completed, the milling machine 7 quickly moves above the other set of clamping stations 8 to mill the already clamped flywheel there. Simultaneously, the operator can remove the finished flywheel from the first set of stations and clamp a new one. This parallel operation mode enables the equipment to achieve continuous and efficient production of engine flywheels, completely solving the production bottlenecks caused by positioning and fixture changes in traditional equipment.

[0071] As can be seen from the above example, this equipment, through the integrated transverse drive component 3, longitudinal drive component 5, lifting drive component 6, and milling machine 7, in conjunction with two sets of continuously operating clamping stations 8, and the ingeniously designed inner clamping assembly 84, outer clamping assembly 83, and positioning assembly 85 within the clamping stations 8, achieves automated, high-precision, and continuous milling of the engine flywheel. In particular, the coordinated operation of the inner clamping assembly 84, outer clamping assembly 83, and positioning assembly 85 allows for flexible switching of clamping methods according to different milling parts, without the need to change fixtures. This effectively solves the problems of time-consuming positioning and unstable clamping in existing technologies, significantly improving production efficiency and processing quality.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling machine for producing engine flywheels, characterized in that: The system includes a main frame (1) that serves as the main support. A transverse drive (3) is provided at the lower end of the main frame (1). A transverse frame (4) is fixedly installed at the output end of the transverse drive (3). A longitudinal drive (5) is horizontally fixed on the transverse frame (4). A lifting drive (6) is fixedly installed at the output end of the longitudinal drive (5). A milling machine (7) for milling the engine flywheel is fixedly installed at the output end of the lifting drive (6). The upper end of the main frame (1) is fixedly provided with a processing table (2), and two sets of clamping stations (8) for clamping the engine flywheel are fixedly provided on the processing table (2). The two sets of clamping stations (8) are used for the fixed clamping of the engine flywheel and the disassembly and assembly of the engine flywheel in turn, so as to realize the continuous processing of the engine flywheel. The clamping station (8) includes a fixed sleeve (81) fixedly installed on the upper end of the processing table (2). The fixed sleeve (81) has a through hole in the center. A support base (88) is fixedly installed on the side wall of the through hole through the central tube (82) of the sleeve. The upper end of the fixed sleeve (81) is provided with a fan-shaped groove (811) for avoiding flywheel milling. The support chassis (88) is provided with an inner clamping assembly (84) for clamping the central hole of the engine flywheel, and the outer periphery of the fixed sleeve (81) is fixedly provided with two sets of outer clamping assemblies (83) for fixing and clamping the outer periphery of the engine flywheel. The outer side of the central tube (82) of the sleeve is provided with two sets of positioning components (85) for positioning the through holes of the engine flywheel disk. An adjustment component (86) is provided between the two sets of positioning components (85) and the included angle between the two sets of positioning components (85) is adjusted by the adjustment component (86). The support chassis (88) is provided with a positioning drive component (87) for driving the positioning components (85) to rotate and adjust their positions.

2. The milling equipment for producing engine flywheels according to claim 1, characterized in that: The clamping direction of the inner clamping component (84) is perpendicular to the clamping direction of the two sets of outer clamping components (83). By simultaneously clamping the engine flywheel with the inner clamping component (84) and the outer clamping component (83), the engine is limited in different directions, thus stabilizing the engine flywheel during milling.

3. The milling equipment for producing engine flywheels according to claim 1, characterized in that: The external clamping assembly (83) includes an external clamping support (831) fixedly disposed on the outer periphery of the fixed sleeve (81), an external clamping screw (833) rotatably mounted between the external clamping support (831) and the fixed sleeve (81), and an external clamping motor (832) for driving the external clamping screw (833) to rotate is fixedly disposed on the outer periphery of the external clamping support (831); a screw slide (834) is threadedly connected to the external clamping screw (833), a support guide groove (8311) is provided at the upper end of the external clamping support (831) for sliding cooperation with the screw slide (834), and two sets of clamping plate pins (835) are rotatably mounted at the upper end of the screw slide (834) through the support guide groove (8311), and an arc-shaped clamping plate (836) for clamping the outer periphery of the flywheel is fixedly connected to the clamping plate pins (835).

4. The milling equipment for producing engine flywheels according to claim 3, characterized in that: An outer clamping plate (837) is fixedly installed on the upper end of the lead screw slide (834), and two sets of connecting supports (838) are rotatably installed on the outer clamping plate (837). An electric telescopic rod (839) is fixedly installed on the connecting support (838), and a clamping plate support (8361) is fixedly installed on the outer periphery of the arc-shaped clamping plate (836) and rotatably connected to the output end of the electric telescopic rod (839).

5. The milling equipment for producing engine flywheels according to claim 1, characterized in that: The inner clamping assembly (84) includes an inner clamping support (841) fixedly installed at the lower end of the support chassis (88). An inner clamping top plate (842) is fixedly installed on the upper part of the inner clamping support (841). An inner clamping limiting groove (8421) is provided in the middle of the inner clamping top plate (842). Two sets of driving connecting rods (846) are slidably installed at the inner clamping limiting groove (8421). An inner clamping arc block (847) is fixedly installed at the upper end of the driving connecting rod (846). The inner clamping arc block (847) extends upward from the upper end of the fixed sleeve (81) to press against the side wall of the flywheel center hole. An inner clamping drive is provided at the lower part of the inner clamping support (841) for driving the two sets of inner clamping arc blocks (847) to slide.

6. The milling equipment for producing engine flywheels according to claim 5, characterized in that: The inner clamp drive includes an inner clamp connecting plate (843) fixedly installed at the lower part of the inner clamp support (841). An inner clamp drive disk (845) is provided between the inner clamp connecting plate (843) and the inner clamp top plate (842). Two sets of drive arc grooves (8451) are provided on the inner clamp drive disk (845). Two sets of drive connecting rods (846) are slidably connected at the drive arc grooves (8451). An inner clamp motor (844) for driving the inner clamp drive disk (845) to rotate is fixedly installed at the lower end of the inner clamp connecting plate (843).

7. The milling equipment for producing engine flywheels according to claim 1, characterized in that: The positioning component (85) includes a positioning slider (851) slidably disposed on the positioning drive (87). A positioning base (852) is fixedly disposed on the upper end of the positioning slider (851). A rodless cylinder (853) is fixedly installed on the lower part of the positioning base (852). A cylinder slider (854) is fixedly connected to the output end of the rodless cylinder (853). A lifting cylinder (855) is fixedly disposed on the upper end of the cylinder slider (854). A positioning pin (856) for inserting into the flywheel disc through hole is fixedly connected to the output end of the lifting cylinder (855). A positioning support plate (857) is fixedly disposed on the upper end of the positioning base (852). The positioning support plate (857) is slidably disposed at the fan-shaped groove (811). A support plate guide groove (858) is provided on the positioning support plate (857) for the positioning pin (856) to slide and avoid.

8. The milling equipment for producing engine flywheels according to claim 7, characterized in that: The positioning drive component (87) includes a positioning guide seat (871) rotatably mounted on the outer periphery of the central tube (82) of the sleeve. The upper end of the positioning guide seat (871) is provided with a T-shaped guide groove (872) that slides with the positioning slider (851). The lower end of the positioning guide seat (871) is fixedly mounted on the driven gear (873). The lower end of the support chassis (88) is fixedly mounted with a motor support (874). A drive motor (875) is fixedly mounted on the motor support (874). A drive gear (876) that meshes and transmits with the driven gear (873) is fixedly mounted on the output shaft of the drive motor (875).

9. The milling equipment for producing engine flywheels according to claim 8, characterized in that: The adjustment assembly (86) includes an adjustment support (861) fixedly disposed on the outer periphery of the positioning guide seat (871). An adjustment guide groove (862) is provided on the upper end of the adjustment support (861), and adjustment plates (864) are fixedly disposed on both sides of the upper end of the adjustment support (861). Two sets of symmetrically distributed adjustment sliders (863) are slidably disposed inside the adjustment support (861). A slider connecting plate (865) is fixedly disposed on the adjustment slider (863). The slider connecting plate (865) passes through the adjustment guide groove (862) and is fixedly connected to an adjustment drive block (866). A drive waist hole (8661) is provided on the adjustment drive block (866). An adjustment screw (867) is fixedly disposed between the two sets of adjustment plates (864) and slides with the drive waist hole (8661). Two sets of adjustment nuts are threadedly connected to the adjustment screw (867), and each set of adjustment nuts has two nuts located on both sides of the adjustment drive block (866).

10. The machining process of a milling machine for producing an engine flywheel according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: According to the specifications of the annular through hole on the engine flywheel disk, install the corresponding positioning pin (856), and adjust the included angle between the two sets of positioning components (85) to match the included angle of the adjacent through hole on the flywheel disk by adjusting the adjustment component (86). Then place the engine flywheel disk to be processed on the fixed sleeve (81). Step 2: First, the inner wall of the central through hole of the engine flywheel is clamped by the inner clamping assembly (84). Then, the outer side wall of the engine flywheel is clamped by the two sets of outer clamping assemblies (83) to achieve the machining and fixing of the engine flywheel. The milling machine (7) is driven by the transverse drive (3), the longitudinal drive (5) and the lifting drive (6) to perform milling on the upper end face of the engine flywheel and the through hole of the disc body. Step 3: After the through hole of the engine flywheel disc is machined, the positioning drive (87) drives the positioning component (85) to move directly below the through hole of the disc. Then, the positioning component (85) drives the positioning pin (856) to move upward and insert into the through hole of the disc. Then, the inner clamping component (84) cancels the top pressure clamping of the engine flywheel center hole. The flywheel center hole is milled by the milling machine (7). At this time, the flywheel is fixedly clamped by the outer clamping component (83) and the positioning component (85) for milling. Step 4: After the engine flywheel center hole is machined, the inner clamping assembly (84) presses and clamps the inner wall of the flywheel center hole again, and the two sets of outer clamping assemblies (83) cancel the clamping of the outer peripheral side wall of the engine flywheel. The flywheel is milled by the milling machine (7). At this time, the flywheel is fixedly clamped by the milling process of the inner clamping assembly (84) and the positioning assembly (85). Step 5: When the engine flywheel is being milled on one set of clamping stations (8), the engine flywheel is clamped on the other set of clamping stations (8). After the engine flywheel is milled on one set of clamping stations (8), the milling machine (7) moves to the other set of clamping stations (8) to mill the flywheel clamped on it, and takes out the finished flywheel and clamps a new flywheel.

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