Automobile wheel hub outer ring surface milling equipment and milling method thereof

Abstract

The present application discloses a milling device for the outer ring surface of an automobile wheel hub and a milling method thereof, which specifically relates to the technical field of automobile wheel hub milling, including a processing table and a milling mechanism, wherein a sealing safety door is provided at the discharge end of the processing table, and a blocking plate is provided on the side of the sealing safety door away from the processing table, and a human-machine interface is provided on the side of the blocking plate away from the sealing safety door, and a drive chamber is installed on the side end surface of the processing table through bolts, and a fixed base is installed below the processing table, and the milling mechanism is arranged above the inside of the processing table, and a milling placement table is provided below the milling mechanism. Different milling cutters can be replaced at any time to mill the wheel hub through a double-cutter milling assembly, so that in the process of processing the wheel hub, the milling of a special wheel hub can be done without stopping the machine, and the time required to process a wheel hub can be shortened by shortening the time for changing the cutter.

Description

Technical Field

[0001] The present application relates to the technical field of automobile wheel hub milling, and more specifically, to an automobile wheel hub outer ring surface milling device and a milling method thereof. Background Art

[0002] The milling equipment for the outer ring of automobile wheel hub is a special equipment used to process the outer ring of automobile wheel hub. Traditional metal cutting processing methods are often incapable of handling complex curved surfaces, and the workpiece needs to be clamped and processed multiple times, which not only reduces the processing efficiency but also increases the processing cost. For some precision parts, such as blades and hubs of aircraft engines, traditional processing methods are difficult to meet the design requirements, so new processing technologies need to be developed to meet these special needs;

[0003] After searching, the existing publication number: CN202022709227.7 discloses an intermediate support milling device; including: a main body box, a clamping seat, a drilling mechanism and a milling mechanism, characterized in that the clamping seat is fixedly installed at the center of the bottom plate of the main body box, the drilling mechanism is driven by the first linear guide to move along the Y-axis direction on one side of the clamping seat, the linear module is fixedly installed on one side of the main body box, and the milling mechanism is driven by the second linear guide to move along the Y-axis direction on the top of the clamping seat, and the milling mechanism is fixedly installed on the second linear guide. It can realize double-sided processing and complete drilling and milling processing on the same equipment at the same time. In the process of realizing this application, the inventor found that the prior art has the following problems:

[0004] When existing milling equipment is milling a workpiece, it is necessary to carry out rough processing and fine processing according to the actual situation. When implementing the corresponding workflow, due to the design limitations of the workpiece, it is necessary to wait and change the tool according to the structure of the workpiece. During the tool change process, the tool change structure will not only affect the operating space of the milling equipment, but also cause the milling time to be extended during the waiting process.

[0005] Therefore, in order to solve the above problems, an automobile wheel hub outer ring surface milling device and a milling method thereof are proposed. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides an automobile wheel hub outer ring surface milling device and a milling method thereof to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a kind of automobile wheel hub outer ring surface milling equipment, comprising a processing table and a milling mechanism, a sealed safety door is provided at the discharge end of the processing table, and a blocking plate is provided on the side of the sealed safety door away from the processing table, and a human-machine interaction interface is provided on the side of the blocking plate away from the sealed safety door, and a drive chamber is installed on the side end face of the processing table by bolts, and a fixed base is installed below the processing table, and the milling mechanism is arranged above the interior of the processing table, and a milling placement table is provided below the milling mechanism, and the milling mechanism includes a tool changing mechanism and a double-knife milling assembly, and a double-knife milling assembly for milling is provided below the tool changing mechanism, and the tool changing mechanism includes a tool magazine, a tool changing assembly and a drive box, and a tool changing assembly is provided on the side of the tool magazine away from the drive chamber, and a drive box is provided on the side of the tool changing assembly away from the tool magazine.

[0008] Preferably, a first slide rail is installed at the center of the processing table and the milling mechanism, and the double-blade milling assembly includes a plug-in sleeve, a locking strip, an upper clamping head, a lower clamping head and a docking shaft, and two groups of locking strips for limiting are arranged above the plug-in sleeve, and the two groups of locking strips are respectively provided with an upper clamping head and a lower clamping head, and a docking shaft for plugging is installed inside the plug-in sleeve.

[0009] Preferably, an electric turntable for driving the double-knife milling assembly to turn is installed below the drive box, and a bogie for connecting with the double-knife milling assembly is installed below the electric turntable. When the double-knife milling assembly completes the tool changing operation, the electric turntable drives the double-knife milling assembly to rotate along a circle, and a driving motor is installed on the side of the double-knife milling assembly. A rotating shaft for driving the double-knife milling assembly is installed at the output end of the drive box.

[0010] Preferably, a limit ring is provided below the rotating shaft, and upper limit grooves are provided on both sides of the limit ring, and lower limit grooves are provided below the upper limit grooves, and a limit strip is provided below the limit ring, and a plug-in groove is provided below the limit strip. When the rotating shaft moves into the interior of the plug-in sleeve, the plug-in groove of the rotating shaft merges with the docking shaft, and the limit strip is connected to the interior of the plug-in sleeve, and the upper clamping head and the lower clamping head of the clamping strip are connected to the upper limit groove and the lower limit groove of the limit ring.

[0011] Preferably, the tool changing assembly includes a mounting base, a second slide rail, a movable slide, a connecting block, a first servo motor, a connecting shaft, a motor and a tool clamping bracket, and the second slide rail is installed on the side of the mounting base by bolts, and the movable slide is installed on the movable end of the second slide rail, and the connecting block is installed on the side of the movable slide away from the second slide rail, and the first servo motor is installed on the side of the connecting block, and motors are installed on both sides of the first servo motor, and the connecting shaft is installed on the output end of the first servo motor, and the tool clamping bracket is installed on the side of the connecting shaft away from the first servo motor.

[0012] Preferably, the knife clamping bracket includes a knife clamping rod and a knife clamping assembly, and the knife clamping assemblies are installed at the upper and lower ends of the knife clamping rod, and the knife clamping assembly includes a connecting frame, a knife clamping strip, a knife clamping groove and a movable slide, and knife clamping strips are installed on both sides of the inner wall of the connecting frame, and knife clamping grooves for clamping are arranged at the centers of the two groups of knife clamping strips, and a movable slide is arranged below the knife clamping groove.

[0013] Preferably, the tool magazine includes a tool changing disc, a tool placing turntable, a milling cutter, a tool taking groove and a rotating motor, and the tool placing turntable is installed inside the tool changing disc, and the milling cutters are evenly placed in the groove of the tool placing turntable, and the tool taking groove is arranged below the tool placing turntable, and a rotating motor is arranged on the side of the tool placing turntable away from the tool changing disc.

[0014] Preferably, a double handle is installed on the outer surface of the sealed safety door, and the double handle includes a rotating link, a rod body and a limit link, and the rod body is installed above the rotating link, and the limit link is installed at one end of the rod body away from the rotating link, and a pressure sensing probe is installed at the closing part of the sealed safety door.

[0015] Preferably, a milling method of an automobile wheel hub outer ring surface milling device comprises the following steps:

[0016] Step 1: First, when processing the wheel hub, hold the rod of the double handle and rotate it with the rotating link as the center point, so that the limit link of the double handle is separated from the sealed safety door on the opposite side, so that the restrictions of the two sets of sealed safety doors disappear, and then push the two sets of sealed safety doors, and make the sealed safety doors move along the processing table through the sliding track, so that the working platform of the processing table is opened, and then place the wheel hub on the milling placement table of the processing table, and fix the wheel hub with a buckle;

[0017] Step 2: Then start the integrated tool changer mechanism and the double-knife milling assembly to balance the wheel hub above the milling table. After completing the balancing of the two sets of double-knife units in turn, the sealed safety door is merged, and the pressure sensing probe of the sealed safety door is fitted. Then hold the rod body and rotate it to turn the limit chain connected to the rod body, thereby locking the sealed safety door. After the pressure sensing probe is in contact, the human-machine interface receives the signal, and starts the integrated tool changer mechanism and the double-knife milling assembly, so that the double-knife milling assembly mills the wheel hub.

[0018] Step 3: During the milling process, the human-machine interface detects the milling range accuracy of the wheel hub. Before the milling position reaches the special wheel hub structure, a special milling cutter needs to be replaced to perform fine milling on the special area of ​​the wheel hub. At this time, the tool magazine in the tool changing mechanism starts to run, and the tool placement turntable is driven to rotate by the rotating motor, and the corresponding special milling cutter is placed in the tool taking slot;

[0019] Step 4: Then the tool changing assembly is started, and the tool clamping bracket is driven to move through the second slide rail and the moving slide, so that when the tool clamping bracket moves to the corresponding position, the motor is driven at this time, and the moving bar in the moving slide is tightened by rotation, so that the tool clamping bar connected to the moving slide is unfolded, and the tool clamping groove in the tool clamping bar is combined to clamp the milling cutter in the groove, and then the clamped milling cutter is turned by the first servo motor, and the milling cutter is placed in the waiting area of ​​the double-knife milling assembly through the adjustment of the second slide rail and the moving slide, and then the assembly of the milling cutter is completed;

[0020] Step 5: When the double-cutter milling assembly is at the designated position of the milling cutter, the hydraulic frame in the drive box lifts the rotating shaft to move upward, and separates the drive structure from the double-cutter milling assembly. Then the drive motor drives the double-cutter milling assembly to rotate in a circle along the output end of the drive motor, and the position of the milling cutter is replaced. At this time, the electric turntable and the bogie rotate, and the milling cutter position is reset;

[0021] Step 6: When the wheel hub is milled with a special milling cutter, the used milling cutter is recovered and replaced through the human-machine interface, tool changing assembly and tool magazine according to the required milling position.

[0022] Technical effects and advantages of this application:

[0023] 1. Compared with the prior art, the milling equipment and the milling method of the outer ring surface of the automobile wheel hub, when processing the wheel hub, in the process of taking and milling the wheel hub, the operation of the sealed safety door can prevent the processing table from opening suddenly during the milling process, thereby causing production safety. Then, during the operation of the tool changing integrated mechanism and the double-knife milling assembly in the milling mechanism, the driving milling mechanism and the tool changing integrated mechanism can be centrally processed, and the tool changing assembly in the tool changing integrated mechanism can be used to replace the vacated plug-in end of the milling cutter, so that the plug-in end in the double-knife milling assembly can be plugged in before milling, and in the milling process, the use of the milling cutter can be replaced according to the structure of the wheel hub, and different milling cutters can be replaced at any time through the tool magazine, so as to achieve the replacement of the milling cutter without stopping the machine, so that the milling processing of the wheel hub can be completed in an integrated manner.

[0024] 2. Compared with the prior art, this automobile wheel hub outer ring surface milling equipment and milling method, through the cooperation of a double-cutter milling assembly and an integrated tool changing mechanism, can make it possible to replace different milling cutters at any time to mill the wheel hub through the double-cutter milling assembly during the processing of the wheel hub, so that in the process of processing the wheel hub, the milling of special wheel hubs can be carried out without stopping the machine, and the time required for processing a wheel hub can be shortened by shortening the time for tool changing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the processing platform of this application;

[0027] Figure 3 This is a front view structural schematic diagram of the blocking plate of the present application;

[0028] Figure 4 This is a front cross-sectional structural schematic diagram of the integrated tool-changing mechanism of the present application;

[0029] Figure 5 This is a schematic diagram of the front cross-sectional structure of the tool magazine of the present application;

[0030] Figure 6 This is a schematic diagram of the front cross-sectional structure of the tool changing assembly of the present application;

[0031] Figure 7 This is a front view structural schematic diagram of the knife clamping assembly of the present application;

[0032] Figure 8 This is a schematic diagram of the front cross-sectional structure of the connecting frame of the present application;

[0033] Fig. 9This is a front view structural schematic diagram of the drive box of the present application;

[0034] Fig.10 It is a schematic diagram of the front cross-sectional structure of the double-knife milling assembly of the present application;

[0035] Fig.11 This is a front view structural schematic diagram of the rotating shaft of the present application;

[0036] Fig.12 For this application Figure 2 Schematic diagram of the structure at A in the middle.

[0037] The accompanying drawings are marked as follows: 1, processing table; 2, blocking plate; 3, human-machine interface; 4, sealed safety door; 5, drive room; 6, fixed base; 7, milling mechanism; 8, milling placement table; 9, first slide rail; 10, tool change integrated mechanism; 11, double-knife milling assembly; 12, double handle; 1201, rotating chain; 1202, rod body; 1203, limit chain; 1204, pressure sensor probe; 13, tool magazine; 14, tool change assembly; 15, drive box; 16, tool change disc; 17, tool placement turntable; 18, milling cutter; 19, tool removal slot; 20, rotating motor; 21, mounting base; 22, second slide Rail; 23, movable slide; 24, connecting block; 25, first servo motor; 2501, connecting shaft; 26, motor; 27, knife clamping bracket; 2701, knife clamping rod; 28, knife clamping assembly; 2801, connecting frame; 29, knife clamping strip; 2901, knife clamping slot; 30, movable slide; 31, electric turntable; 32, bogie; 33, driving motor; 34, plug-in sleeve; 35, clamping strip; 3501, upper clamping head; 3502, lower clamping head; 36, docking shaft; 37, plug-in slot; 38, limit strip; 39, limit ring; 3901, upper limit slot; 3902, lower limit slot; 40, rotating shaft. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Example 1

[0039] As attached Figures 1 to 12The shown type of automobile wheel hub outer ring surface milling equipment includes a processing table 1 and a milling mechanism 7, a sealing safety door 4 is provided at the discharge end of the processing table 1, and a blocking plate 2 is provided on the side of the sealing safety door 4 away from the processing table 1, and a human-machine interaction interface 3 is provided on the side of the blocking plate 2 away from the sealing safety door 4, and a driving chamber 5 is installed on the side end face of the processing table 1 by bolts, and a fixed base 6 is installed below the processing table 1, and the milling mechanism 7 is arranged above the interior of the processing table 1, and a milling placement table 8 is arranged below the milling mechanism 7, and the milling mechanism 7 includes a tool changing mechanism 10 and a double-knife milling assembly 11, and a double-knife milling assembly 11 for milling is arranged below the tool changing mechanism 10, and the tool changing mechanism 10 includes a tool magazine 13, a tool changing assembly 14 and a drive box 15, and a tool changing assembly 14 is provided on the side of the tool magazine 13 away from the drive chamber 5, and a drive box 15 is provided on the side of the tool changing assembly 14 away from the tool magazine 13.

[0040] Among them, when the wheel hub is being processed, in the process of taking and milling the wheel hub, the operation of the sealed safety door 4 can prevent the processing table 1 from opening suddenly during the milling process, thereby preventing production safety, and then the tool changing mechanism 10 and the double-knife milling assembly 11 in the milling mechanism 7 can be centrally processed by driving the milling mechanism 7 and the tool changing mechanism 10 during operation, and the tool changing assembly 14 in the tool changing mechanism 10 can be used to replace the vacated plug-in end of the milling cutter, so that the plug-in end in the double-knife milling assembly 11 can be plugged in before milling, and in the milling process, the use of the milling cutter can be replaced according to the structure of the wheel hub, and different milling cutters can be replaced at any time through the tool magazine 13, so as to achieve the replacement of the milling cutter without stopping the machine, so that the milling processing of the wheel hub can be completed in an integrated manner. Example 2

[0041] Based on the embodiment, the scheme in the embodiment is further detailed in combination with the following specific working method, as shown in Figure 1 to Figure 2, and detailed description is given below:

[0042] As a preferred embodiment, a first slide rail 9 is installed at the center of the processing table 1 and the milling mechanism 7, and the double-blade milling assembly 11 includes a plug-in sleeve 34, a locking strip 35, an upper clamping head 3501, a lower clamping head 3502 and a docking shaft 36, and two groups of locking strips 35 for limiting are arranged above the plug-in sleeve 34, and the two groups of locking strips 35 are respectively provided with an upper clamping head 3501 and a lower clamping head 3502, and a docking shaft 36 for plugging is installed inside the plug-in sleeve 34.

[0043] As a preferred embodiment, an electric turntable 31 for driving the double-knife milling assembly 11 to turn is installed below the drive box 15, and a bogie 32 for connecting to the double-knife milling assembly 11 is installed below the electric turntable 31. When the double-knife milling assembly 11 completes the tool changing operation, the electric turntable 31 drives the double-knife milling assembly 11 to rotate along the circumference, and a driving motor 33 is installed on the side of the double-knife milling assembly 11. A rotating shaft 40 for driving the double-knife milling assembly 11 is installed at the output end of the drive box 15. Then, the double-knife milling assembly passes through the rotating shaft 40. When the double-knife milling assembly 11 needs to be driven, the rotating shaft 40 is plugged into the corresponding plug-in sleeve 34, thereby completing the connection of the rotating shaft 40. After the double-knife milling assembly 11 completes the tool changing operation, the milling cutter position of the double-knife milling assembly 11 can be modified through the electric turntable 31 and the rotating frame.

[0044] As a preferred embodiment, a limit ring 39 is provided below the rotating shaft 40, and upper limit grooves 3901 are provided on both sides of the limit ring 39, and a lower limit groove 3902 is provided below the upper limit groove 3901, and a limit strip 38 is provided below the limit ring 39, and a plug-in groove 37 is provided below the limit strip 38. When the rotating shaft 40 moves into the interior of the plug-in sleeve 34, the plug-in groove 37 of the rotating shaft 40 merges with the docking shaft 36, and the limit strip 38 is connected to the interior of the plug-in sleeve, and the upper clamping head 3501 and the lower clamping head 3502 of the clamping strip 35 are connected to the upper limit groove 3901 and the lower limit groove 3902 of the limit ring 39, and then the rotating shaft 40 is in the process of moving, The rotating shaft 40 is inserted into the interior of the plug-in sleeve 34. At this time, the plug-in groove 37 of the rotating shaft 40 is plugged into the docking shaft 36, and then the limit strip 38 enters the interior of the plug-in sleeve 34 at the same time, thereby completing the first limiting of the rotating shaft 40 and the plug-in sleeve 34. Then, in the process of moving the rotating shaft 40, the rotating shaft 40 will make the limit ring 39 contact with the locking strip 35, so that the upper limit groove 3901 and the lower limit groove 3902 of the limit ring 39 are in contact with the upper clamping head 3501 and the lower clamping head 3502 of the locking strip 35, thereby completing the installation of the rotating shaft 40. Then the rotating shaft 40 drives the milling cutter to rotate by driving the plug-in sleeve 34.

[0045] As a preferred embodiment, the tool changing assembly 14 includes a mounting base 21, a second slide rail 22, a movable slide 23, a connecting block 24, a first servo motor 25, a connecting shaft 2501, a motor 26 and a tool clamping bracket 27, and the second slide rail 22 is installed on the side of the mounting base 21 by bolts, and the movable slide 23 is installed on the movable end of the second slide rail 22, and the connecting block 24 is installed on the side of the movable slide 23 away from the second slide rail 22, and the first servo motor 25 is installed on the side of the connecting block 24, and motors 26 are installed on both sides of the first servo motor 25, and the first servo motor 25 A connecting shaft 2501 is installed at the output end, and a tool clamping bracket 27 is installed on the side of the connecting shaft 2501 away from the first servo motor 25, and the mounting base 21 is the supporting point of the tool changing assembly 14, and then the tool clamping bracket 27 is installed above the movable slide 23 through the connecting block 24, thereby completing the connection of the tool clamping bracket 27, and then the second slide rail 22 and the movable slide 23 provided in the tool changing assembly 14 are used to adjust the position of the tool clamping bracket 27 for taking the milling cutter in the tool magazine 13, and then the first servo motor 25 installed on the tool clamping bracket 27 is used to drive the tool clamping bracket 27 to turn.

[0046] As a preferred embodiment, the knife clamping bracket 27 includes a knife clamping rod 2701 and a knife clamping assembly 28, and the knife clamping assembly 28 is installed at both ends of the knife clamping rod 2701, and the knife clamping assembly 28 includes a connecting frame 2801, a knife clamping strip 29, a knife clamping groove 2901 and a movable slide 30, and knife clamping strips 29 are installed on both sides of the inner wall of the connecting frame 2801, and knife clamping grooves 2901 for clamping are arranged at the centers of the two groups of knife clamping strips 29, and a movable slide 30 is arranged below the knife clamping grooves 2901, and then the knife clamping assembly 28 on the knife clamping bracket 27 can be driven by the motor 26 to move the movable strip in the movable slide 30, thereby tightening the knife clamping strip 29, so that the knife clamping strip 29 can clamp the milling cutter through the knife clamping groove 2901.

[0047] As a preferred embodiment, the tool magazine 13 includes a tool changing disc 16, a tool placing turntable 17, a milling cutter 18, a tool taking groove 19 and a rotating motor 20, and the tool changing disc 16 is installed with the tool placing turntable 17, and the milling cutters 18 are evenly placed in the groove of the tool placing turntable 17, and the tool taking groove 19 is arranged below the tool placing turntable 17, and the side of the tool placing turntable 17 away from the tool changing disc 16 is provided with a rotating motor 20, and the tool magazine 13 drives the tool changing disc 16 to move by the rotating motor 20, thereby driving the milling cutter 18 on the tool changing disc 16 to rotate, thereby changing the milling cutter to move, and taking the milling cutter through the tool taking groove 19.

[0048] As a preferred embodiment, a double handle 12 is installed on the outer surface of the sealed safety door 4, and the double handle 12 includes a rotating link 1201, a rod body 1202 and a limit link 1203, and the rod body 1202 is installed above the rotating link 1201, and the limit link 1203 is installed at one end of the rod body 1202 away from the rotating link 1201, and a pressure sensing probe 1204 is installed at the closing part of the sealed safety door 4, and the double handle 12 is a movable structure. Because the sealed safety door 4 is a double-linked structure, when closing, the position of the double handle 12 is changed by rotating the rod body 1202 with the rotating link 1201 as the base point, thereby completing the restriction of the sealed safety door 4, and through the contact of the pressure sensing probe 1204, it is detected whether the sealed safety door 4 is open, thereby adjusting the start and close of the processing workpiece in the processing table 1, thereby protecting personnel safety.

[0049] As a preferred embodiment, a milling method of an automobile wheel hub outer ring surface milling device comprises the following steps:

[0050] Step 1: First, when processing the wheel hub, hold the rod 1202 of the double handle 12 and rotate it with the rotating link 1201 as the center point, so that the limit link 1203 of the double handle 12 is separated from the sealed safety door 4 on the opposite side, so that the restrictions of the two sets of sealed safety doors 4 disappear, and then push the two sets of sealed safety doors 4, and make the sealed safety doors 4 move along the processing table 1 through the sliding track, so that the working platform of the processing table 1 is opened, and then place the wheel hub on the milling placement table 8 of the processing table 1, and fix the wheel hub by buckles;

[0051] Step 2: Then start the integrated tool changer 10 and the double-knife milling assembly 11 to balance the wheel hub above the milling placement table 8. After completing the balancing of the two sets of double-knife units in turn, the sealed safety door 4 is merged, and the pressure sensing probe 1204 of the sealed safety door 4 is fitted. Then hold the rod body 1202 and rotate it to turn the limit link 1203 connected to the rod body 1202 to lock the sealed safety door 4. Then, after the pressure sensing probe 1204 is in contact, the human-machine interaction interface 3 receives the signal, and starts the integrated tool changer 10 and the double-knife milling assembly 11, so that the double-knife milling assembly 11 mills the wheel hub.

[0052] Step 3: During the milling process, the human-machine interface 3 detects the milling range accuracy of the wheel hub. Before the milling position reaches the special wheel hub structure, it is necessary to replace the special milling cutter to perform fine milling on the special area of ​​the wheel hub. At this time, the tool magazine 13 in the tool changing mechanism 10 starts to operate, and drives the tool placing turntable 17 to rotate by rotating the motor 20, and places the corresponding special milling cutter in the tool taking groove 19;

[0053] Step 4: Then the tool changing assembly 14 is started, and the tool clamping bracket 27 is driven to move through the second slide rail 22 and the movable slide 23, so that when the tool clamping bracket 27 moves to the corresponding position, the motor 26 is driven and tightened by rotating the moving bar in the movable slide 30, so that the tool clamping bar 29 connected to the movable slide 30 is unfolded, and the tool clamping groove 2901 in the tool clamping bar 29 is combined to clamp the milling cutter in the groove, and then the clamped milling cutter 18 is turned by the first servo motor 25, and the milling cutter 18 is placed in the waiting area of ​​the double-cutter milling assembly 11 through the adjustment of the second slide rail 22 and the movable slide 23, and then the assembly of the milling cutter 18 is completed;

[0054] Step 5: When the double-cutter milling assembly 11 is at the designated position of the milling cutter 18, the hydraulic frame in the drive box 15 lifts the rotating shaft 40 to move upward, and separates the driving structure from the double-cutter milling assembly 11. Then the drive motor 33 drives the double-cutter milling assembly 11 to rotate in a circle along the output end of the drive motor 33, and the position of the milling cutter is replaced. At this time, the electric turntable 31 and the bogie 32 rotate, and the milling cutter position is reset;

[0055] Step 6: When the wheel hub is milled by the special milling cutter, the used milling cutter is recovered and replaced through the human-machine interaction interface 3, the tool changing assembly 14 and the tool magazine 13 according to the required milling position.

[0056] The working process of the present application is as follows: first, when processing the wheel hub, by holding the rod body 1202 of the double handle 12 and rotating it with the rotating link 1201 as the center point, the limiting link 1203 of the double handle 12 is separated from the sealing safety door 4 on the opposite side, so that the restrictions of the two sets of sealing safety doors 4 disappear, and then the two sets of sealing safety doors 4 are pushed, and the sealing safety doors 4 are moved along the processing table 1 through the sliding track, so that the working platform of the processing table 1 is opened, and then the wheel hub is placed on the milling placement table 8 of the processing table 1, and the wheel hub is fixed by a buckle;

[0057] Then, the tool-changing mechanism 10 and the double-knife milling assembly 11 are started to balance the wheel hub above the milling placement table 8. After the two sets of double-knife units are balanced in turn, the sealed safety door 4 is merged, and the pressure sensing probe 1204 of the sealed safety door 4 is fitted. Then, the rod body 1202 is held and rotated to turn the limit link 1203 connected to the rod body 1202, thereby locking the sealed safety door 4. After the pressure sensing probe 1204 is in contact, the human-machine interaction interface 3 receives the signal, and the tool-changing mechanism 10 and the double-knife milling assembly 11 are started, so that the double-knife milling assembly 11 mills the wheel hub.

[0058] During the milling process, the human-machine interface 3 detects the milling range accuracy of the wheel hub. Before the milling position reaches the special wheel hub structure, a special milling cutter needs to be replaced to perform fine milling on the special area of ​​the wheel hub. At this time, the tool magazine 13 in the tool changing mechanism 10 starts to operate, and drives the tool placing turntable 17 to rotate by rotating the motor 20, so that the corresponding special milling cutter is placed in the tool taking groove 19;

[0059] Then the tool changing assembly 14 is started, and the tool clamping bracket 27 is driven to move through the second slide rail 22 and the movable slide 23, so that when the tool clamping bracket 27 moves to the corresponding position, the motor 26 is driven and tightened by rotating the moving bar in the movable slide 30, so that the tool clamping bar 29 connected to the movable slide 30 is unfolded, and the tool clamping groove 2901 in the tool clamping bar 29 is combined to clamp the milling cutter in the groove, and then the clamped milling cutter 18 is turned by the first servo motor 25, and the milling cutter 18 is placed in the waiting area of ​​the double-cutting milling assembly 11 through the adjustment of the second slide rail 22 and the movable slide 23, and then the assembly of the milling cutter 18 is completed;

[0060] Then, when the double-cutter milling assembly 11 is at the designated position of the milling cutter 18, the hydraulic frame in the driving box 15 lifts the rotating shaft 40 to move upward, and the driving structure is separated from the double-cutter milling assembly 11. Then, the driving motor 33 drives the double-cutter milling assembly 11 to rotate in a circle along the output end of the driving motor 33, and the position of the milling cutter is replaced. At this time, the electric turntable 31 and the bogie 32 rotate, and the position of the milling cutter is reset;

[0061] Then, when the special milling cutter is used to mill the wheel hub, the used milling cutter is recovered and replaced through the human-machine interaction interface 3, the tool changing assembly 14 and the tool magazine 13 according to the required milling position. The above is the working principle of the automobile wheel hub outer ring surface milling equipment and its milling method.

Claims

1. An automobile wheel hub outer ring surface milling device, comprising a processing table (1) and a milling mechanism (7), characterized in that: A sealed safety door (4) is provided at the discharge end of the processing table (1), and a blocking plate (2) is provided on the side of the sealed safety door (4) away from the processing table (1), and a human-machine interaction interface (3) is provided on the side of the blocking plate (2) away from the sealed safety door (4), and a drive chamber (5) is installed on the side end surface of the processing table (1) by means of bolts, and a fixed base (6) is installed below the processing table (1), and the milling mechanism (7) is arranged above the inside of the processing table (1), and a milling placement table (7) is provided below the milling mechanism (7). 8), and the milling mechanism (7) includes a tool-changing mechanism (10) and a double-knife milling assembly (11), and a double-knife milling assembly (11) for milling is arranged below the tool-changing mechanism (10), and the tool-changing mechanism (10) includes a tool magazine (13), a tool-changing assembly (14) and a drive box (15), and the tool-changing assembly (14) is arranged on a side of the tool magazine (13) away from the drive chamber (5), and the drive box (15) is arranged on a side of the tool-changing assembly (14) away from the tool magazine (13), and the processing table (1) and the A first slide rail (9) is installed at the center of the milling mechanism (7), the double-knife milling assembly (11) comprises a plug-in sleeve (34), a snap-fit ​​strip (35), an upper clamping head (3501), a lower clamping head (3502) and a docking shaft (36), and two groups of snap-fit ​​strips (35) for limiting are arranged above the plug-in sleeve (34), and the two groups of snap-fit ​​strips (35) are respectively provided with an upper clamping head (3501) and a lower clamping head (3502), and a docking shaft (36) for plugging is installed inside the plug-in sleeve (34), and the drive box (15) An electric turntable (31) for driving the double-knife milling assembly (11) to turn is installed below the electric turntable (31), and a bogie (32) for connecting to the double-knife milling assembly (11) is installed below the electric turntable (31). When the double-knife milling assembly (11) completes a tool change operation, the electric turntable (31) drives the double-knife milling assembly (11) to rotate along a circle, and a drive motor (33) is installed on the side of the double-knife milling assembly (11). A rotating shaft (40) for driving the double-knife milling assembly (11) is installed at the output end of the drive box (15).

2. The automobile wheel hub outer ring surface milling equipment according to claim 1, characterized in that: A limit ring (39) is provided below the rotating shaft (40), and upper limit grooves (3901) are provided on both sides of the limit ring (39), and a lower limit groove (3902) is provided below the upper limit groove (3901), and a limit strip (38) is provided below the limit ring (39), and a plug-in groove (37) is provided below the limit strip (38). When the rotating shaft (40) moves into the interior of the plug-in sleeve (34), the plug-in groove (37) of the rotating shaft (40) merges with the docking shaft (36), and the limit strip (38) is connected to the interior of the plug-in sleeve, and the upper clamping head (3501) and the lower clamping head (3502) of the clamping strip (35) are connected to the upper limit groove (3901) and the lower limit groove (3902) of the limit ring (39).

3. The automobile wheel hub outer ring surface milling equipment according to claim 1, characterized in that: The tool changing assembly (14) comprises a mounting base (21), a second slide rail (22), a movable slide (23), a connecting block (24), a first servo motor (25), a connecting shaft (2501), a motor (26) and a tool clamping bracket (27), and the second slide rail (22) is mounted on the side of the mounting base (21) by bolts, and the movable slide (23) is mounted on the movable end of the second slide rail (22), and the connecting block (24) is mounted on the side of the movable slide (23) away from the second slide rail (22), and the first servo motor (25) is mounted on the side of the connecting block (24), and motors (26) are mounted on both sides of the first servo motor (25), and the connecting shaft (2501) is mounted on the output end of the first servo motor (25), and the tool clamping bracket (27) is mounted on the side of the connecting shaft (2501) away from the first servo motor (25).

4. The automobile wheel hub outer ring surface milling equipment according to claim 3, characterized in that: The knife clamping bracket (27) includes a knife clamping rod (2701) and a knife clamping assembly (28), and the knife clamping assemblies (28) are installed at both upper and lower ends of the knife clamping rod (2701), and the knife clamping assembly (28) includes a connecting frame (2801), a knife clamping strip (29), a knife clamping groove (2901) and a movable slide (30), and knife clamping strips (29) are installed on both sides of the inner wall of the connecting frame (2801), and knife clamping grooves (2901) for clamping are arranged at the centers of the two groups of knife clamping strips (29), and a movable slide (30) is arranged below the knife clamping grooves (2901).

5. The automobile wheel hub outer ring surface milling equipment according to claim 1, characterized in that: The tool magazine (13) comprises a tool changing disc (16), a tool placing turntable (17), a milling cutter (18), a tool taking groove (19) and a rotating motor (20), and the tool placing turntable (17) is installed inside the tool changing disc (16), and the milling cutters (18) are evenly placed in the groove of the tool placing turntable (17), and the tool taking groove (19) is arranged below the tool placing turntable (17), and the rotating motor (20) is arranged on a side of the tool placing turntable (17) away from the tool changing disc (16).

6. The automobile wheel hub outer ring surface milling equipment according to claim 1, characterized in that: A double-connected handle (12) is installed on the outer surface of the sealed safety door (4), and the double-connected handle (12) includes a rotating link (1201), a rod body (1202) and a limit link (1203), and the rod body (1202) is installed above the rotating link (1201), and the limit link (1203) is installed at one end of the rod body (1202) away from the rotating link (1201), and a pressure sensing probe (1204) is installed at the closing position of the sealed safety door (4).

7. A milling method of an automobile wheel hub outer ring surface milling device, using the automobile wheel hub outer ring surface milling device according to claim 6, characterized in that: The milling method comprises the following steps: Step 1: First, when processing the wheel hub, the rod body (1202) of the double handle (12) is held and rotated with the rotating link (1201) as the center point, so that the limit link (1203) of the double handle (12) is separated from the sealed safety door (4) on the opposite side, so that the restrictions of the two sets of sealed safety doors (4) disappear, and then the two sets of sealed safety doors (4) are pushed, and the sealed safety doors (4) are moved along the processing table (1) through the sliding track, so that the working platform of the processing table (1) is opened, and then the wheel hub is placed on the milling placement table (8) of the processing table (1), and the wheel hub is fixed by a buckle; Step 2: Then start the integrated tool change mechanism (10) and the double-knife milling assembly (11) to balance the wheel hub above the milling placement table (8). After the two sets of double-knife units are balanced in turn, the sealed safety door (4) is merged, and the pressure sensing probe (1204) of the sealed safety door (4) is fitted. Then, the rod body (1202) is held and rotated to turn the limit link (1203) connected to the rod body (1202) to lock the sealed safety door (4). After the pressure sensing probe (1204) is in contact, the human-machine interaction interface (3) receives the signal and starts the integrated tool change mechanism (10) and the double-knife milling assembly (11), so that the double-knife milling assembly (11) mills the wheel hub. Step 3: During the milling process, the human-machine interface (3) detects the milling range accuracy of the wheel hub. Before the milling position reaches the special wheel hub structure, a special milling cutter needs to be replaced to perform fine milling on the special area of ​​the wheel hub. At this time, the tool magazine (13) in the tool changing mechanism (10) starts to operate, and drives the tool placement turntable (17) to rotate by rotating the motor (20), so that the corresponding special milling cutter is placed in the tool taking slot (19); Step 4: Then the tool changing assembly (14) is started, and the tool clamping bracket (27) is driven to move through the second slide rail (22) and the movable slide (23), so that when the tool clamping bracket (27) moves to the corresponding position, the motor (26) is driven and tightened by rotating the moving bar in the movable slide (30), so that the tool clamping bar (29) connected to the movable slide (30) is unfolded, and the tool clamping groove (2901) in the tool clamping bar (29) is combined to clamp the milling cutter in the groove, and then the clamped milling cutter (18) is turned by the first servo motor (25), and the milling cutter (18) is placed in the waiting area of ​​the double-knife milling assembly (11) through the adjustment of the second slide rail (22) and the movable slide (23), and then the assembly of the milling cutter (18) is completed; Step 5: When the double-cutter milling assembly (11) is at the designated position of the milling cutter (18), the hydraulic frame in the drive box (15) lifts the rotating shaft (40) to move upward, and the drive structure is separated from the double-cutter milling assembly (11). Then, the drive motor (33) drives the double-cutter milling assembly (11) to rotate in a circle along the output end of the drive motor (33), and the position of the milling cutter is replaced. At this time, the electric turntable (31) and the bogie (32) rotate, and the milling cutter position is reset; Step 6: When the wheel hub is milled by the special milling cutter, the used milling cutter is recovered and replaced according to the required milling position through the human-machine interaction interface (3) and the tool changing assembly (14) and the tool magazine (13).

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