A special machining equipment for shaft parts

Abstract

This invention discloses a special machining equipment for shaft parts. The equipment includes a drilling and milling worktable, a main gantry worktable, and a deep hole worktable arranged in sequence. The main gantry worktable includes a cast bed, a main gantry rack on the side of the cast bed, a gantry machining beam arranged on the cast bed, a gantry beam drive motor mounted on the outer side of the side rod of the gantry beam, and a drive gear matching the main gantry rack mounted on the drive shaft of the gantry beam drive motor, a connecting rod with an angled drilling head, and a side milling head mounted on the inner side of the side rod. Rotary chucks are provided at both ends of the cast bed of the main gantry worktable for fixing the shaft parts to be machined and for driving the shaft parts to be machined to rotate. This special machining equipment for shaft parts is rationally designed, integrates multiple functions into one unit, improves machining efficiency and accuracy, and has good application prospects.

Description

Technical Field

[0001] This invention relates to the field of processing equipment technology, and specifically to a special processing equipment for shaft-type parts. Background Technology

[0002] A shaft is a mechanical component that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. Large shafts are often core transmission components in equipment. Due to their critical role in transmission, large shafts typically have relatively complex structures and require complex machining processes. Currently, machining large shafts generally requires the use of multiple machines such as lathes, milling machines, and boring machines, resulting in a complex machining process and significant challenges in process control.

[0003] Therefore, developing a device that is particularly suitable for machining shaft-type parts, is relatively simple to machine, and has high machining efficiency is of great practical significance. Summary of the Invention

[0004] Due to the aforementioned deficiencies in existing technologies, this invention provides a device that is particularly suitable for machining shaft parts, is relatively simple to machine, and has high machining efficiency. Specifically, it is a special machining equipment for shaft parts. This equipment has the different functions of various machine tools required for machining shaft parts, integrating them into one unit so that multiple processes can be completed in a single clamping. This reduces the equipment and labor costs required for machining, and also reduces the time consumed by multiple transfers and clamping, as well as the deviations that may occur during clamping. It effectively improves machining efficiency while ensuring product accuracy, overcoming the current shortcomings of complex machining processes, difficult process control, and low machining efficiency for shaft parts.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A special machining equipment for shaft parts includes a drilling and milling table, a main gantry table, and a deep hole table;

[0007] The drilling and milling worktable and the deep hole worktable are respectively arranged on both sides of the main gantry worktable;

[0008] The main gantry worktable includes a main gantry worktable casting bed. The side of the main gantry worktable casting bed is provided with a main gantry worktable rack arranged along the arrangement direction of the drilling and milling worktable, the main gantry worktable, and the deep hole worktable. The gantry processing beam is generally U-shaped, including two side rods and a connecting rod for connecting the two side rods. The gantry processing beam is arranged on the main gantry worktable casting bed, and the side rods are perpendicular to the main gantry worktable casting bed. A gantry beam drive motor is installed on the outer side of the side rods of the gantry processing beam, and a drive gear matching the main gantry worktable rack is mounted on the drive shaft of the gantry beam drive motor. An oblique drilling head is installed on the connecting rod, and a side milling head is installed on the inner side of the side rod. The two ends of the main gantry worktable casting bed are provided with rotary chucks for fixing the shaft parts to be processed and for driving the shaft parts to be processed to rotate.

[0009] The drilling and milling table includes a machine tool base and a cast bed. The machine tool base is equipped with an X-axis slide rail perpendicular to the rack arrangement direction of the main gantry table. The bottom of the cast bed has a slider that matches the X-axis slide rail. The cast bed is mounted on the machine tool base. Trapezoidal slide rails parallel to the rack of the main gantry table are provided on both sides of the cast bed. The high-power direct-drive drilling head has trapezoidal slide rails on both sides that align with the trapezoidal slide rails. A matching drill and milling head slider is arranged in the trapezoidal slide rail of the drilling and milling worktable, and the high-power direct drive drill and milling head of the drilling and milling worktable can slide along the trapezoidal slide rail of the drilling and milling worktable. The working head is mounted on the drive shaft of the high-power direct drive drill and milling head of the drilling and milling worktable. The two sides of the drilling guide bracket are provided with bracket sliders that match the trapezoidal slide rail of the drilling and milling worktable, and the drilling guide bracket can slide along the trapezoidal slide rail of the drilling and milling worktable. A detachable variable diameter clamp is installed in the middle of the drilling guide bracket. The working head passes through the center of the detachable variable diameter clamp and is fixed by the detachable variable diameter clamp. The working head faces the main gantry worktable.

[0010] The deep hole worktable includes a casting bed, with trapezoidal slide rails on both sides of the casting bed parallel to the rack of the main gantry worktable. The high-power direct-drive drill head has L-shaped wing plates on both sides that match the trapezoidal slide rails, allowing the high-power direct-drive drill head to slide along the trapezoidal slide rails. A deep hole drill bit is mounted on the drive shaft of the high-power direct-drive drill head. Support brackets matching the trapezoidal slide rails are provided on both sides of the deep hole guide support frame, allowing the deep hole guide support frame to slide along the trapezoidal slide rails. A guide hole matching the deep hole drill bit is provided in the middle of the deep hole guide support frame, through which the deep hole drill bit passes, facing the main gantry worktable.

[0011] The special machining equipment for shaft parts of this invention effectively combines the traditional clamping chuck and the positioning fixture into one unit using a rotary chuck. This not only reduces the size but also simplifies control and makes clamping more convenient. The drilling and milling table, the main gantry table, and the deep hole table can be used for independent or coordinated machining. It has the different functions of various machine tools required for machining shaft parts. The integration of these functions into one unit allows multiple processes to be completed in a single clamping, reducing the equipment and labor costs required for machining. It also reduces the time consumed by multiple transfers and clamping, as well as the deviations that may occur during clamping. This effectively improves machining efficiency while ensuring product accuracy. It overcomes the shortcomings of current shaft parts machining processes, such as complex processes, difficult process control, and low machining efficiency, and has good application prospects.

[0012] As a preferred technical solution:

[0013] As described above, a special machining equipment for shaft parts has a drilling and milling table groove on the upper part of the casting bed of the drilling and milling table, which matches the high-power direct-drive drilling and milling head of the drilling and milling table, and the drilling and milling table groove is located between the trapezoidal slide rails of the two drilling and milling tables.

[0014] As described above, a special processing equipment for shaft parts has a drilling and milling power head control box located at the end of the high-power direct-drive drilling and milling head away from the drive shaft of the drilling and milling worktable.

[0015] As described above, a special processing equipment for shaft parts has a main gantry worktable groove located in the middle of the main gantry worktable casting bed above the main gantry worktable casting bed, which matches the rotary chuck.

[0016] Guide bars are provided on both sides of the main gantry worktable casting bed. The rotary chuck and gantry processing beam are provided with slots that match the guide bars. The rotary chuck and gantry processing beam are engaged with the guide bars through the slots and can slide along the guide bars.

[0017] As described above, a special processing equipment for shaft parts has a deep hole worktable groove on the upper part of the casting bed of the deep hole worktable, which matches the high-power direct drive drilling head of the deep hole worktable, and the deep hole worktable groove is located between the trapezoidal slide rails of the two deep hole worktables.

[0018] The deep hole worktable groove is provided with a deep hole worktable guide rack parallel to the trapezoidal slide rail of the deep hole worktable. A deep hole worktable drill head drive motor is installed below the high-power direct drive drill head of the deep hole worktable. A deep hole worktable drill head drive gear that meshes with the deep hole worktable guide rack is mounted on the drive shaft of the deep hole worktable drill head drive motor.

[0019] The top of the high-power direct-drive drilling head of the deep hole worktable is equipped with a drilling power head control box.

[0020] The working head of the special machining equipment for shaft parts described above is a drill bit or a milling cutter.

[0021] The special processing equipment for shaft parts described above includes a rotary chuck comprising an end cover, a hollow rotor bushing, silicon steel sheets, a shaped winding, a cast steel stator housing, rollers, and hydraulic jaws.

[0022] The hollow rotor bushing is integrally cylindrical in shape, with a ring of silicon steel sheets installed on its outer wall. A shaped winding is installed in the slots between the silicon steel sheets. A ring of shaped winding is installed around the hollow rotor bushing. The shaped windings connected in series form the rotor. There are multiple hydraulic claws, which are distributed around the circumference of the hollow rotor bushing and are all installed on the inner side of the hollow rotor bushing.

[0023] The cast steel stator housing includes a cylindrical central housing and fixed wings located on both sides of the cylindrical central housing. The fixed wings have slots. A ring of magnets is installed on the inner wall of the cylindrical central housing. The rotor is arranged inside the cylindrical central housing. A ring of rollers is arranged on both sides of the hollow rotor bushing. Annular roller outer pressure plates are provided on both sides of the rollers for sealing the rollers. End caps are provided on the outer sides of the roller outer pressure plates for sealing and fixing the rotor. The extensive use of permanent magnet direct drive motors as power output improves equipment space and energy consumption. Only one machine is needed to complete all processing steps, significantly reducing site costs and equipment procurement costs, and lowering the entry barrier.

[0024] The above technical solution is only one feasible technical solution of the present invention. The scope of protection of the present invention is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0025] The above invention has the following advantages or beneficial effects:

[0026] (1) The special processing equipment for shaft parts of the present invention uses a low-speed permanent magnet external rotor motor as the bearing for rotational displacement of the rotary chuck, which effectively combines the two independent units of traditional clamping chuck and displacement tooling into one unit, which not only reduces the volume but also simplifies the control and makes clamping more convenient.

[0027] (2) The special processing equipment for shaft parts of the present invention uses a permanent magnet direct drive motor as the power output of the rotary chuck, which improves the equipment space and energy consumption. Only one piece of equipment is needed to realize all processing steps, which can greatly reduce site costs and equipment purchase costs, and lower the entry threshold.

[0028] (3) The special processing equipment for shaft parts of the present invention can process independently or in conjunction with the drilling and milling worktable, the main gantry worktable and the deep hole worktable. It has the different functions of various machine tools required for processing shaft parts. The integration of these functions into one unit allows multiple processes to be completed in one clamping, reducing the equipment and manpower costs required for processing. It also reduces the time consumed by multiple transfers and clamping and the deviations that will occur during clamping. It effectively improves processing efficiency while ensuring product accuracy. It overcomes the current defects of complicated shaft parts processing flow, difficult process control and low processing efficiency. It has good application prospects. Attached Figure Description

[0029] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their focus is on illustrating the gist of the invention.

[0030] Figure 1 This is a three-dimensional structural diagram of the special processing equipment for shaft parts according to the present invention;

[0031] Figure 2 A three-dimensional structural diagram of the main gantry workbench;

[0032] Figure 3 A schematic diagram of the three-dimensional structure of the deep hole drilling stage;

[0033] Figure 4 A three-dimensional structural diagram of the drilling and milling worktable;

[0034] Figure 5 This is a front view of a special machining equipment for shaft-type parts;

[0035] Figure 6 Left view of a special machining equipment for shaft-type parts;

[0036] Figure 7 A top view of a special machining equipment for shaft-type parts;

[0037] Figure 8 An exploded view of an external rotor self-centering rotary chuck;

[0038] Among them, 1 is the drilling and milling table, 11 is the casting bed of the drilling and milling table, 12 is the drilling guide bracket, 13 is the high-power direct-drive drilling and milling head of the drilling and milling table, 14 is the trapezoidal slide rail of the drilling and milling table, 15 is the drill bit (replaceable end mill), 16 is the machine base of the drilling and milling table, 17 is the X-axis slide rail of the drilling and milling table, 18 is the electrical control box of the drilling and milling power head, 19 is the detachable variable diameter clamp, 2 is the main gantry table, 21 is the rotary chuck, 211 is the end cover, 212 is the silicon steel sheet, 213 is the hollow rotor bushing, 214 is the magnet, 215 is the roller, 216 is the hydraulic jaw, and 217 is the cast steel stator. 218 is the shell, 219 is the roller outer pressure plate, 22 is the gantry machining beam, 23 is the oblique drilling head, 24 is the side milling head, 25 is the main gantry worktable casting bed, 26 is the gantry beam drive motor, 27 is the main gantry worktable rack, 3 is the deep hole worktable, 31 is the deep hole worktable casting bed, 32 is the deep hole guide support frame, 33 is the deep hole worktable high-power direct drive drilling head, 34 is the deep hole drill bit, 35 is the deep hole worktable guide rack, 36 is the deep hole drill L-shaped wing plate, 37 is the deep hole worktable trapezoidal slide rail, 38 is the drilling power head electrical control box, and 4 is the shaft part to be processed. Detailed Implementation

[0039] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0040] Example 1

[0041] A special machining equipment for shaft-type parts, such as Figure 1 , 5 As shown in ~7, it includes a drilling and milling worktable 1, a main gantry worktable 2, and a deep hole worktable 3;

[0042] The drilling and milling worktable 1 and the deep hole worktable 3 are respectively arranged on both sides of the main gantry worktable 2;

[0043] Main gantry workbench 2 Figure 2As shown, the system includes a main gantry table casting bed 25. A main gantry table rack 27 is provided on the side of the main gantry table casting bed 25, arranged along the direction of the drilling and milling table, the main gantry table, and the deep hole table. The gantry machining beam 22 is integrally U-shaped, including two side rods and a connecting rod for connecting the two side rods. The gantry machining beam 22 is arranged on the main gantry table casting bed 25, and the side rods are perpendicular to the main gantry table casting bed 25. A gantry beam drive motor 26 is installed on the outer side of the side rods of the gantry machining beam 22, and a drive gear matching the main gantry table rack 27 is mounted on the drive shaft of the gantry beam drive motor 26. An angled drill bit is installed on the connecting rod. 23. A side milling head 24 is installed on the inner side of the side rod. The two ends of the main gantry worktable casting bed 25 are provided with rotary chucks 21 for fixing the shaft parts 4 to be processed and for driving the shaft parts 4 to be processed to rotate. The main gantry worktable groove matching the rotary chuck 21 and located in the middle of the main gantry worktable casting bed 25 is opened on the top of the main gantry worktable casting bed 25. Guide bars are opened on both sides of the main gantry worktable casting bed 25. The rotary chuck 21 and the gantry processing beam 22 are provided with slots matching the guide bars. The rotary chuck 21 and the gantry processing beam 22 are engaged with the guide bars through the slots. The rotary chuck 21 and the gantry processing beam 22 can slide along the guide bars.

[0044] Rotary chuck 21 Figure 8 As shown, it includes an end cap 211, a hollow rotor bushing 213, silicon steel sheets 212, a shaped winding 218, a cast steel stator housing 217, rollers 215, and hydraulic claws 216. The hollow rotor bushing 213 is integrally cylindrical, with a ring of silicon steel sheets 212 installed on its outer wall. The shaped winding 218 is installed in the slots between the silicon steel sheets 212. A ring of shaped winding 218 is installed around the hollow rotor bushing 213. The rotor is formed by connecting the shaped windings 218 in series. There are multiple hydraulic claws 216. The multiple hydraulic claws 216 are distributed around the circumference of the hollow rotor bushing 213 and are all installed on the inner side of the hollow rotor bushing 213.

[0045] The cast steel stator housing 217 includes a cylindrical central housing and fixed wings located on both sides of the cylindrical central housing. The fixed wings have slots. A ring of magnets 214 is installed on the inner wall of the cylindrical central housing. The rotor is arranged inside the cylindrical central housing. A ring of rollers 215 is arranged on both sides of the hollow rotor bushing 213. An annular roller outer pressure plate 219 for sealing the rollers 215 is provided on both sides of the roller 215. An end cover 211 for sealing and fixing the rotor is provided on the outer side of the roller outer pressure plate 219.

[0046] The installation process of the rotary chuck 21 is as follows: After the silicon steel sheet 212 is stacked and formed, it is heat-fitted onto the hollow rotor shaft sleeve 213. Then, the formed winding 218 is installed into the corresponding slot of the stacked silicon steel sheet 212 in sequence, and the lead-out wire ends are connected in series to form the rotor. In the slot of the corresponding polarity on the inner wall of the cast steel stator shell 217, the magnet 214 is attached with glue (for high power, aluminum strips can also be installed to strengthen the fastening). The roller 215 is installed into the corresponding position in the end cover 211 and the roller outer pressure plate 219 is sealed on both sides. First, the roller end cover assembled on one side is installed on the stator shell with the attached magnet and fastened with bolts. Then, the assembled hollow rotor shaft is assembled with the cast steel stator shell using a vertical assembly machine. After completion, the dimensions are confirmed to be correct. The roller end cover on the other side is installed on the other side of the cast steel stator shell and fastened with bolts. The torque, back electromotive force and other data are tested by powering on. After passing the test, the hydraulic chuck 216 is installed into the corresponding position reserved in the hollow rotor bushing 213 using the push bolt;

[0047] Drilling and milling table 1 Figure 4 As shown, the machine tool includes a drilling and milling table base 16 and a drilling and milling table casting bed 11. The drilling and milling table X-axis slide rail 17, perpendicular to the arrangement direction of the main gantry table rack 27, is laid on the drilling and milling table base 16. A drilling and milling table slider matching the X-axis slide rail 17 is provided at the bottom of the drilling and milling table casting bed 11. The drilling and milling table casting bed 11 is arranged on the drilling and milling table base 16. Trapezoidal slide rails 14, parallel to the main gantry table rack 27, are provided on both sides of the drilling and milling table casting bed 11. A drilling and milling table groove matching the high-power direct-drive drilling and milling head 13 is provided on the top of the drilling and milling table casting bed 11, and the drilling and milling table groove is located between the two trapezoidal slide rails 14. Trapezoidal slide rails 14 matching the drilling and milling table are provided on both sides of the high-power direct-drive drilling and milling head 13. The drilling and milling head slider is arranged in the trapezoidal slide rail of the drilling and milling worktable, and the high-power direct drive drilling and milling head 13 of the drilling and milling worktable can slide along the trapezoidal slide rail 14 of the drilling and milling worktable. The high-power direct drive drilling and milling head 13 of the drilling and milling worktable is provided with a drilling and milling power head electrical control box 18 at the end away from the drive shaft. The working head (drill bit 15 or milling cutter) is installed on the drive shaft of the high-power direct drive drilling and milling head 13 of the drilling and milling worktable. The drilling guide bracket 12 is provided with bracket sliders on both sides that match the trapezoidal slide rail 14 of the drilling and milling worktable, and the drilling guide bracket 12 can slide along the trapezoidal slide rail 14 of the drilling and milling worktable. A detachable variable diameter clamp 19 is installed in the middle of the drilling guide bracket 12. The working head (drill bit 15 or milling cutter) passes through the center of the detachable variable diameter clamp 19 and is fixed by the detachable variable diameter clamp 19. The working head (drill bit 15 or milling cutter) faces the main gantry worktable 2.

[0048] Deep hole worktable 3 Figure 3 As shown, the deep hole worktable includes a casting bed 31. Both sides of the casting bed 31 have trapezoidal slide rails 37 parallel to the main gantry rack 27. Above the casting bed 31 is a groove for the high-power direct-drive drill head 33, located between the two trapezoidal slide rails 37. L-shaped wing plates 36, matching the trapezoidal slide rails 37, are fixed to both sides of the high-power direct-drive drill head 33. The high-power direct-drive drilling head 33 of the deep hole worktable slides along the trapezoidal slide rail 37 of the deep hole worktable. The deep hole drill bit 34 is installed on the drive shaft of the high-power direct-drive drilling head 33 of the deep hole worktable. The deep hole guide support frame 32 has support frame sliders on both sides that match the trapezoidal slide rail 37 of the deep hole worktable, and the deep hole guide support frame 32 can slide along the trapezoidal slide rail 37 of the deep hole worktable. The deep hole guide support frame 32 has a guide hole in the middle that matches the deep hole drill bit 34, and the deep hole drill bit 34 passes through the guide hole. The deep hole drill bit 34 faces the main gantry worktable 2.

[0049] The deep hole worktable has a guide rack 35 parallel to the trapezoidal slide rail 37 inside the groove. The deep hole worktable has a drill head drive motor installed below the high-power direct drive drill head 33. The drill head drive gear meshes with the guide rack 35 on the drive shaft of the drill head drive motor. The drill head control box 38 is installed on the top of the high-power direct drive drill head 33.

[0050] The aforementioned specialized machining equipment for shaft parts is designed as a 7000mm*1500mm*1450mm square box, with the main body made of ductile iron in one piece. The main gantry worktable casting bed 25 is made of high-strength ductile iron QT450 in one piece. The rotary chuck 21 has a built-in low-speed permanent magnet external rotor motor that runs synchronously, allowing the workpiece to rotate during drilling. It can also rotate at low speed with a servo closed-loop drive to achieve 5° / level indexing and hovering, meeting the needs of angle machining. The gantry machining beam 22 is also made of high-strength ductile iron QT450 in one piece, integrating an angled drilling head 23 and a side milling head 24, driven by drive motors on the left and right sides. The drilling head, milling head, and drive motors are all servo controlled to achieve precise control of machining accuracy. The deep hole worktable casting bed 31 is also made of high-strength ductile iron QT450 in one piece, with slide rail grooves machined on both sides. The trapezoidal slide rail ensures stable movement during machining. Equipped with a high-power permanent magnet motor, it features stepless speed regulation to guarantee power output for drilling under various working conditions. Two small servo motors are also installed inside the motor housing, and a rack and pinion mechanism under the bed ensures smooth head feed. The front guide support effectively reduces the weight-induced drop of the deep hole drill bit, ensuring accurate center positioning. The drilling and milling table casting bed 11 and machine tool base 16 are also made of high-strength ductile iron QT450 in a single casting. A servo motor integrated inside the bed allows for left and right movement on the base. It is also equipped with a high-power permanent magnet motor with stepless speed regulation to guarantee power output for drilling under various working conditions. If needed, a planetary gearbox can be added to further amplify torque for large-area milling operations. Combined with the rotation of the main gantry table, it can machine end faces, planes, and angled grooves. Changing drill bits also allows for eccentric hole machining.

[0051] Verification has shown that the special machining equipment for shaft parts of this invention uses a low-speed permanent magnet external rotor motor as the carrier for rotational displacement of the rotary chuck, effectively combining the two independent units of the traditional clamping chuck and displacement fixture into one unit. This not only reduces the size but also simplifies control and makes clamping more convenient. The rotary chuck uses a permanent magnet direct drive motor as the power output, which improves the equipment space and energy consumption. Only one machine is needed to complete all machining processes, which can greatly reduce site costs and equipment procurement costs, and lower the entry barrier. The drilling and milling worktable, main gantry worktable, and deep hole worktable can be used for independent or linked machining. They have the different functions of various machine tools required for machining shaft parts. The integration of them into one unit allows multiple processes to be completed in one clamping, reducing the equipment and labor costs required for machining. It also reduces the time consumed by multiple transfers and clamping and the deviations that may occur during clamping. This effectively improves machining efficiency while ensuring product accuracy. It overcomes the shortcomings of current shaft parts machining processes that are complicated, difficult to control, and have low machining efficiency, and has good application prospects.

[0052] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0053] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A special processing equipment for shaft-type parts, characterized in that: Includes drilling and milling worktable, main gantry worktable and deep hole worktable; The drilling and milling worktable and the deep hole worktable are respectively arranged on both sides of the main gantry worktable; The main gantry worktable includes a main gantry worktable casting bed. The side of the main gantry worktable casting bed is provided with a main gantry worktable rack arranged along the arrangement direction of the drilling and milling worktable, the main gantry worktable, and the deep hole worktable. The gantry processing beam is generally U-shaped, including two side rods and a connecting rod for connecting the two side rods. The gantry processing beam is arranged on the main gantry worktable casting bed, and the side rods are perpendicular to the main gantry worktable casting bed. A gantry beam drive motor is installed on the outer side of the side rods of the gantry processing beam, and a drive gear matching the main gantry worktable rack is mounted on the drive shaft of the gantry beam drive motor. An oblique drilling head is installed on the connecting rod, and a side milling head is installed on the inner side of the side rod. The two ends of the main gantry worktable casting bed are provided with rotary chucks for fixing the shaft parts to be processed and for driving the shaft parts to be processed to rotate. The drilling and milling table includes a machine tool base and a cast bed. The machine tool base is equipped with an X-axis slide rail perpendicular to the rack arrangement direction of the main gantry table. The bottom of the cast bed has a slider that matches the X-axis slide rail. The cast bed is mounted on the machine tool base. Trapezoidal slide rails parallel to the rack of the main gantry table are provided on both sides of the cast bed. The high-power direct-drive drilling head has trapezoidal slide rails on both sides that align with the trapezoidal slide rails. A matching drill and milling head slider is arranged in the trapezoidal slide rail of the drilling and milling worktable, and the high-power direct drive drill and milling head of the drilling and milling worktable can slide along the trapezoidal slide rail of the drilling and milling worktable. The working head is mounted on the drive shaft of the high-power direct drive drill and milling head of the drilling and milling worktable. The two sides of the drilling guide bracket are provided with bracket sliders that match the trapezoidal slide rail of the drilling and milling worktable, and the drilling guide bracket can slide along the trapezoidal slide rail of the drilling and milling worktable. A detachable variable diameter clamp is installed in the middle of the drilling guide bracket. The working head passes through the center of the detachable variable diameter clamp and is fixed by the detachable variable diameter clamp. The working head faces the main gantry worktable. The deep hole worktable includes a casting bed, with trapezoidal slide rails on both sides of the casting bed parallel to the rack of the main gantry worktable. The high-power direct-drive drill head has L-shaped wing plates on both sides that match the trapezoidal slide rails, allowing the high-power direct-drive drill head to slide along the trapezoidal slide rails. A deep hole drill bit is mounted on the drive shaft of the high-power direct-drive drill head. Support brackets matching the trapezoidal slide rails are provided on both sides of the deep hole guide support frame, allowing the deep hole guide support frame to slide along the trapezoidal slide rails. A guide hole matching the deep hole drill bit is provided in the middle of the deep hole guide support frame, through which the deep hole drill bit passes, facing the main gantry worktable.

2. The special processing equipment for shaft parts according to claim 1, characterized in that, The upper part of the casting bed of the drilling and milling table has a drilling and milling table groove that matches the high-power direct drive drilling and milling head of the drilling and milling table, and the drilling and milling table groove is located between the trapezoidal slide rails of the two drilling and milling tables.

3. The special processing equipment for shaft parts according to claim 2, characterized in that, The high-power direct-drive drilling and milling head of the drilling and milling worktable is equipped with a drilling and milling power head control box at the end away from the drive shaft.

4. The special processing equipment for shaft parts according to claim 1, characterized in that, The main gantry worktable has a groove on its upper part that matches the rotary chuck and is located in the middle of the main gantry worktable casting bed. Guide bars are provided on both sides of the main gantry worktable casting bed. The rotary chuck and gantry processing beam are provided with slots that match the guide bars. The rotary chuck and gantry processing beam are engaged with the guide bars through the slots and can slide along the guide bars.

5. A special processing equipment for shaft parts according to claim 1, characterized in that, The upper part of the casting bed of the deep hole worktable has a deep hole worktable groove that matches the high-power direct drive drilling head of the deep hole worktable, and the deep hole worktable groove is located between the two trapezoidal slide rails of the deep hole worktable. The deep hole worktable groove is provided with a deep hole worktable guide rack parallel to the trapezoidal slide rail of the deep hole worktable. A deep hole worktable drill head drive motor is installed below the high-power direct drive drill head of the deep hole worktable. A deep hole worktable drill head drive gear that meshes with the deep hole worktable guide rack is mounted on the drive shaft of the deep hole worktable drill head drive motor. The top of the high-power direct-drive drilling head of the deep hole worktable is equipped with a drilling power head control box.

6. The special processing equipment for shaft parts according to claim 1, characterized in that, The working head is a drill bit or a milling cutter.

7. A special processing equipment for shaft parts according to claim 4, characterized in that, The rotary chuck includes an end cap, a hollow rotor bushing, silicon steel sheets, shaped windings, a cast steel stator housing, rollers, and hydraulic jaws. The hollow rotor bushing is integrally cylindrical in shape, with a ring of silicon steel sheets installed on its outer wall. A shaped winding is installed in the slots between the silicon steel sheets. A ring of shaped winding is installed around the hollow rotor bushing. The shaped windings connected in series form the rotor. There are multiple hydraulic claws, which are distributed around the circumference of the hollow rotor bushing and are all installed on the inner side of the hollow rotor bushing. The cast steel stator housing includes a cylindrical central housing and fixed wings located on both sides of the cylindrical central housing. The fixed wings have slots. A ring of magnets is installed on the inner wall of the cylindrical central housing. The rotor is arranged inside the cylindrical central housing. A ring of rollers is arranged on both sides of the hollow rotor bushing. An annular roller outer pressure plate is provided on both sides of the rollers for sealing the rollers. An end cap for sealing and fixing the rotor is provided on the outer side of the roller outer pressure plate.

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