A CNC compound turning and milling machine tool and a turning and milling method for precision parts processing

Abstract

The present invention relates to the technical field of compound turning and milling machine tools, and discloses a CNC compound turning and milling machine tool and a turning and milling method for precision parts processing, comprising a device body, a sliding cover plate slidably installed on the outside of the device body, a processing chamber opened inside the device body, a milling mechanism installed inside the processing chamber, a moving slide rail installed inside the processing chamber, a turning mechanism slidably installed on the moving slide rail, and a driving mechanism installed on the moving slide rail. In the present invention, when the driving mechanism drives all fixed jaws to move toward the center of the fixture turntable, the fixed jaws can clamp the parts, and when the limit turntable continues to rotate after clamping the parts, the buffer spring can be compressed to relieve the clamping force of the fixed jaws on the parts, and when the internal structure of the parts changes during the processing, the rebound of the buffer spring can also better clamp the parts to prevent the external deformation of the parts from falling off the fixture.

Description

Technical Field

[0001] The invention relates to the technical field of compound turning and milling machine tools, in particular to a numerically controlled compound turning and milling machine tool and a turning and milling method for precision parts processing. Background Art

[0002] A turning-milling machine tool is an advanced CNC equipment that combines turning and milling processing methods. It has the characteristics of high precision, high efficiency, and high degree of automation, and can meet the processing needs of various high-precision parts.

[0003] Chinese patent CN110405480B discloses a copper pipe composite processing lathe with a side milling head, including a milling arm, a driving member, a transmission assembly, a side milling head and a lathe chuck, the driving member is installed on the milling arm, the transmission assembly is installed in the milling arm and connected to the driving member, the side milling head is transversely installed at the end of the milling arm and connected to the transmission assembly, the side milling head includes a milling cutter shaft and a cap, the milling cutter shaft is rotatably inserted in the milling arm, one end of the milling cutter shaft is recessed with a disassembly groove, the disassembly groove is at least partially located on the inner side of the milling arm, and the other end of the milling cutter shaft is provided with a milling cutter.

[0004] In the above patents and prior art, plastic parts are easily affected by the clamping force during processing and may be deformed or indented. When the turning and milling of the parts causes changes in the internal structure of the parts, the parts may also fall off the fixture during processing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a CNC compound turning and milling machine tool and a turning and milling method for precision parts processing.

[0006] A CNC compound turning and milling machine tool and a turning and milling method for precision parts processing, comprising a device body, a sliding cover plate is slidably installed on the outside of the device body, a processing chamber is opened inside the device body, a milling mechanism is installed inside the processing chamber, a moving slide rail is installed inside the processing chamber, a turning mechanism is slidably installed on the moving slide rail, a driving mechanism is installed on the moving slide rail, a clamping mechanism is installed outside the driving mechanism, and an adjusting mechanism is installed inside the clamping mechanism;

[0007] The clamping mechanism and the adjusting mechanism are slidably mounted on the movable slide rail via a driving mechanism, and the clamping mechanism can be laterally moved along the movable slide rail via the driving mechanism;

[0008] The driving mechanism can drive the clamping mechanism to clamp the parts that need to be turned and milled. The clamping mechanism can maintain a certain clamping force when clamping the parts. The adjusting mechanism can adjust the clamping force of the clamping mechanism. The driving mechanism can drive the clamping mechanism and the clamped parts to move on the moving slide rail. The milling mechanism and the turning mechanism can perform turning and milling operations on the clamped parts.

[0009] Preferably, the driving mechanism includes a driving warehouse and a transmission central shaft, the driving warehouse is slidably installed on the outside of the movable slide rail, one end of the transmission central shaft is rotatably installed inside the driving warehouse, the other end of the transmission central shaft passes through the driving warehouse and extends into the clamping mechanism, a driving motor is installed inside the driving warehouse, the driving end of the driving motor is connected to a motor roller, a transmission belt is installed outside the motor roller, a central shaft roller is installed outside the transmission central shaft, the other end of the transmission central shaft is connected to a limiting turntable, and a limiting groove is provided inside the limiting turntable.

[0010] Preferably, the motor roller at the driving end of the driving motor is connected to the central shaft roller outside the transmission central shaft through a transmission belt;

[0011] The driving motor can drive the transmission center shaft to rotate inside the driving bin through the transmission connection between the motor roller and the center shaft roller. When the transmission center shaft rotates, it can drive the limit turntable to rotate synchronously.

[0012] Preferably, the limit turntable is installed inside the clamping mechanism through the transmission center shaft, the limit groove opened inside the limit turntable is a spiral line structure, and the limit turntable is connected to the clamping mechanism through the internal limit groove;

[0013] When the transmission center shaft drives the limiting turntable to rotate, it can drive the clamping mechanism to clamp or loosen through the connection between the limiting groove and the clamping mechanism.

[0014] Preferably, the clamping mechanism includes a clamp turntable, which is installed on the outside of the driving bin, and a plurality of fixed clamps are slidably installed inside the clamp turntable, and a plurality of fixed clamps are each provided with a clamp slide groove inside. A plurality of turntable slide grooves are installed inside the clamp turntable, and a movable slide rod is each installed inside the plurality of turntable slide grooves. A connecting sliding seat is slidably installed outside the movable slide rod, a transmission slide rod is fixedly installed outside the connecting sliding seat, a connecting sleeve is slidably installed outside the connecting sliding seat, and a buffer spring is installed inside the connecting sleeve.

[0015] Preferably, the demoulding limiting mechanism comprises a limiting sleeve, the turntable slide groove inside the fixture turntable corresponds to the clamping claw slide groove provided inside the fixed clamping claw, the corresponding turntable slide groove and the clamping claw slide groove are slidably connected, the movable slide rod is fixedly connected to the fixture turntable through the turntable slide groove, the connecting sliding seat is connected to the inside of the clamping claw slide groove through the external connecting sleeve and buffer spring, and the outside of the connecting sleeve is connected to the adjusting mechanism;

[0016] When the connecting sliding seat moves along the outside of the moving sliding rod, it can drive the fixed clamping claw to slide inside the clamp turntable. When the fixed clamping claw slides inside the clamp turntable, it can drive the clamping claw sliding groove to slide along the outside of the turntable sliding groove.

[0017] Preferably, the tops of the plurality of transmission slide bars are all inserted into the limiting grooves provided on the limiting turntable, and the transmission slide bars are always located inside the limiting grooves when the limiting turntable rotates;

[0018] When the limit turntable rotates, it can synchronously drive the multiple connecting sliding seats to move along the moving sliding rod through the multiple transmission sliding rods. When the connecting sliding seat moves, it can drive the fixed clamping claw to move through the connecting sleeve and the buffer spring. When the fixed clamping claw moves, it can clamp or release the parts.

[0019] Preferably, the adjustment mechanism comprises an adjustment ring and a plurality of telescopic connecting rods, the adjustment ring is rotatably mounted on the outside of the fixture turntable, the telescopic connecting rod is rotatably mounted on the inside of the fixture turntable, an adjustment rack is arranged on one side of the adjustment ring, an adjustment screw is arranged on the telescopic end of the telescopic connecting rod, the telescopic end of the telescopic connecting rod is rotatably connected to the connecting sleeve, and a transmission gear is arranged on the other end of the telescopic connecting rod;

[0020] One end of the telescopic connecting rod passes through the transmission sliding rod and is rotatably connected to the connecting sleeve, the outer portion of the adjusting screw is threadedly connected to the connecting sliding seat, and the connecting sleeve and the connecting sliding seat are connected via the adjusting screw.

[0021] Preferably, one end of the telescopic connecting rod connected to the transmission gear extends out of the adjustment ring, and the adjustment ring is meshed and connected with the transmission gear connected to one end of the telescopic connecting rod through an adjustment rack provided on the outside;

[0022] When the adjusting ring rotates, it can synchronously drive multiple telescopic connecting rods to rotate by adjusting the connection between the rack and multiple transmission gears. When the telescopic connecting rod rotates, it can drive the adjusting screw to rotate. When the adjusting screw rotates, the position of the connecting sleeve can be adjusted.

[0023] A turning and milling method for precision parts processing uses the above-mentioned CNC compound turning and milling machine tool.

[0024] Compared with the prior art, the present invention provides a CNC compound turning and milling machine tool and a turning and milling method for precision parts processing, which has the following beneficial effects:

[0025] 1. This type of CNC compound turning and milling machine tool can clamp the parts when the driving mechanism drives all the fixed jaws to move toward the center of the fixture turntable. After clamping the parts, when the limit turntable continues to rotate, the buffer spring can be compressed to relieve the clamping force of the fixed jaws on the parts. When the internal structure of the parts changes during the processing, the rebound of the buffer spring can also better clamp the parts to prevent their external deformation from falling off the fixture.

[0026] 2. This type of CNC compound turning and milling machine tool can drive the adjusting screw to rotate by adjusting the rack and meshing with the transmission gear when the adjusting circle is rotated. When the adjusting screw rotates, the position of the connecting sleeve on the connecting sliding seat can be adjusted. When the connecting sleeve moves in the direction of the buffer spring, the buffer spring can be compressed to increase the clamping force of the fixed clamp on the part. When the connecting sleeve moves in the direction of the transmission slide rod, the buffer spring can be extended to reduce the clamping force of the part. By rotating the adjusting circle to adjust the clamping force of the fixed clamp, it can adapt to parts with different structures and better prevent them from being damaged during the clamping process.

[0027] 3. This type of CNC compound turning and milling machine tool can drive the clamping mechanism to open and loosen the clamping of the parts when the driving motor drives the limit turntable to rotate clockwise, and can drive the clamping mechanism to tighten and fix the parts when the driving motor drives the limit turntable to rotate counterclockwise. When the limit turntable rotates, it can synchronously drive multiple fixed claws to tighten and loosen synchronously, so that the parts to be processed can always be located in the center of the clamping mechanism when the clamping mechanism clamps the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of a CNC compound turning and milling machine tool of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of a CNC compound turning and milling machine tool of the present invention;

[0030] Figure 3 It is a three-dimensional structural schematic diagram of a driving mechanism of a CNC compound turning and milling machine tool of the present invention;

[0031] Figure 4 It is a schematic diagram of the internal structure of a driving mechanism of a CNC compound turning and milling machine tool of the present invention;

[0032] Figure 5 It is a three-dimensional structural schematic diagram of a clamping mechanism of a CNC compound turning and milling machine tool of the present invention;

[0033] Figure 6For the present invention Figure 5 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 7 The internal structure of the clamping mechanism of a CNC compound turning and milling machine tool of the present invention is schematically shown. Figure 1 ;

[0035] Figure 8 The internal structure of the clamping mechanism of a CNC compound turning and milling machine tool of the present invention is schematically shown. Figure 2 ;

[0036] Fig. 9 It is a schematic diagram of the internal structure of a clamping jaw slideway of a CNC compound turning and milling machine tool of the present invention;

[0037] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the structure at point B in the middle.

[0038] In the figure: 1. device body; 2. sliding cover; 3. processing chamber; 4. milling mechanism; 5. moving slide rail; 6. turning mechanism; 7. driving mechanism; 71. driving chamber; 72. driving motor; 73. motor roller; 74. driving belt; 75. driving center axis; 76. center axis roller; 77. limiting turntable; 78. limiting groove; 8. clamping mechanism; 81. fixture turntable; 82. fixed clamping jaw; 83. clamping jaw slide groove; 84. turntable slide groove; 85. moving slide rod; 86. connecting slide seat; 87. transmission slide rod; 88. connecting sleeve; 89. buffer spring; 9. adjusting mechanism; 91. adjusting ring; 92. adjusting rack; 93. telescopic connecting rod; 94. adjusting screw; 95. transmission gear. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a CNC compound turning and milling machine tool and a turning and milling method for precision parts processing.

[0041] Embodiment 1:

[0042] See also Figure 1 - Fig.10A CNC compound turning and milling machine tool comprises a device body 1, a sliding cover plate 2 is slidably installed on the outside of the device body 1, a processing chamber 3 is opened inside the device body 1, a milling mechanism 4 is installed inside the processing chamber 3, a moving slide rail 5 is installed inside the processing chamber 3, a turning mechanism 6 is slidably installed on the moving slide rail 5, a driving mechanism 7 is installed on the moving slide rail 5, a clamping mechanism 8 is installed outside the driving mechanism 7, and an adjusting mechanism 9 is installed inside the clamping mechanism 8;

[0043] The clamping mechanism 8 and the adjusting mechanism 9 are slidably mounted on the movable slide rail 5 via the driving mechanism 7. The clamping mechanism 8 can be laterally moved along the movable slide rail 5 via the driving mechanism 7.

[0044] The driving mechanism 7 can drive the clamping mechanism 8 to clamp the parts that need to be turned and milled. The clamping mechanism 8 can maintain a certain clamping force when clamping the parts. The adjusting mechanism 9 can adjust the clamping force of the clamping mechanism 8. The driving mechanism 7 can drive the clamping mechanism 8 and the clamped parts to move on the moving slide rail 5. The milling mechanism 4 and the turning mechanism 6 can perform turning and milling operations on the clamped parts.

[0045] When working, first place the part to be processed at the center of the clamping mechanism 8, and then drive the clamping mechanism 8 to clamp the part to be processed through the driving mechanism 7. After the clamping is completed, the clamping force of the clamping mechanism 8 is adjusted by the adjusting mechanism 9. After the clamping force of the part is adjusted, the processing operation is started. The driving mechanism 7 can drive the part on the clamping mechanism 8 to move along the moving slide rail 5. When the moving slide rail 5 moves, the milling mechanism 4 and the turning mechanism 6 can perform turning and milling operations on the clamped parts. The structure of the part changes during the processing, resulting in a certain amount of deformation during the clamping process. The elastic structure of the clamping mechanism 8 can adapt to the slight deformation of the outside of the part, thereby preventing the part from falling off the fixture due to external deformation caused by internal structure changes during processing.

[0046] Embodiment 2:

[0047] The difference from the above embodiment is that, please refer to Figure 2 - Figure 7 The driving mechanism 7 includes a driving bin 71 and a transmission shaft 75. The driving bin 71 is slidably installed on the outside of the movable slide rail 5. One end of the transmission shaft 75 is rotatably installed inside the driving bin 71. The other end of the transmission shaft 75 passes through the driving bin 71 and extends into the clamping mechanism 8. A driving motor 72 is installed inside the driving bin 71. The driving end of the driving motor 72 is connected to a motor roller 73. A driving belt 74 is installed outside the motor roller 73. A shaft roller 76 is installed outside the transmission shaft 75. The other end of the transmission shaft 75 is connected to a limiting turntable 77. A limiting groove 78 is provided inside the limiting turntable 77.

[0048] The motor roller 73 at the driving end of the driving motor 72 is connected to the central shaft roller 76 outside the transmission central shaft 75 through a transmission belt 74;

[0049] The driving motor 72 can drive the transmission central shaft 75 to rotate inside the driving compartment 71 through the transmission connection between the motor roller 73 and the central shaft roller 76. When the transmission central shaft 75 rotates, it can drive the limiting turntable 77 to rotate synchronously.

[0050] The limit turntable 77 is installed inside the clamping mechanism 8 through the transmission center shaft 75. The limit groove 78 opened inside the limit turntable 77 is a spiral line structure. The limit turntable 77 is connected to the clamping mechanism 8 through the internal limit groove 78.

[0051] When the transmission center shaft 75 drives the limiting turntable 77 to rotate, the limiting groove 78 can drive the clamping mechanism 8 to clamp or loosen.

[0052] During operation, the driving bin 71 can move along the outside of the moving slide rail 5, and the driving bin 71 can drive the clamping mechanism 8 to move synchronously when moving. When the driving motor 72 is started, it can drive the motor roller 73 to rotate. When the motor roller 73 rotates, it can drive the transmission middle shaft 75 to rotate inside the driving bin 71 through the transmission connection between the transmission belt 74 and the middle shaft roller 76. When the transmission middle shaft 75 rotates, it can drive the limit turntable 77 to rotate synchronously. When the driving motor 72 drives the limit turntable 77 to rotate clockwise, it can drive the clamping mechanism 8 to open and relax the clamping of the parts. When the driving motor 72 drives the limit turntable 77 to rotate counterclockwise, it can drive the clamping mechanism 8 to tighten and clamp the parts. When the limit turntable 77 rotates, it can synchronously drive multiple fixed claws 82 to tighten and relax synchronously, so that the parts to be processed can always be located in the center of the clamping mechanism 8 when the clamping mechanism 8 clamps the parts.

[0053] Embodiment three:

[0054] The difference from the above embodiment is that, please refer to Figure 5 - Fig.10 The clamping mechanism 8 includes a clamp turntable 81, which is installed on the outside of the driving bin 71. A plurality of fixed clamps 82 are slidably installed inside the clamp turntable 81. A clamp slide groove 83 is provided inside each of the fixed clamps 82. A plurality of turntable slide grooves 84 are installed inside the clamp turntable 81. A movable slide rod 85 is installed inside each of the turntable slide grooves 84. A connecting sliding seat 86 is slidably installed outside the movable slide rod 85. A transmission slide rod 87 is fixedly installed outside the connecting sliding seat 86. A connecting sleeve 88 is slidably installed outside the connecting sliding seat 86. A buffer spring 89 is installed inside the connecting sleeve 88.

[0055] The turntable slide groove 84 inside the fixture turntable 81 corresponds to the clamping jaw slide groove 83 inside the fixed clamping jaw 82. The corresponding turntable slide groove 84 and the clamping jaw slide groove 83 are slidably connected. The movable slide rod 85 is fixedly connected to the fixture turntable 81 through the turntable slide groove 84. The connecting sliding seat 86 is connected to the inside of the clamping jaw slide groove 83 through the external connecting sleeve 88 and the buffer spring 89. The outside of the connecting sleeve 88 is connected to the adjusting mechanism 9.

[0056] When the connecting sliding seat 86 moves along the outside of the movable sliding rod 85, it can drive the fixed clamping claw 82 to slide inside the clamp turntable 81. When the fixed clamping claw 82 slides inside the clamp turntable 81, it can drive the clamping claw slide groove 83 to slide along the outside of the turntable slide groove 84.

[0057] The tops of the plurality of transmission slide bars 87 are all inserted into the limiting grooves 78 provided on the limiting turntable 77. When the limiting turntable 77 rotates, the transmission slide bars 87 are always located inside the limiting grooves 78.

[0058] When the limit turntable 77 rotates, it can synchronously drive multiple connecting sliding seats 86 to move along the moving sliding rod 85 through multiple transmission sliding rods 87. When the connecting sliding seats 86 move, they can drive the fixed clamping jaws 82 to move through the connecting sleeves 88 and the buffer springs 89. When the fixed clamping jaws 82 move, they can clamp or release the parts.

[0059] When the limit turntable 77 rotates, the transmission slide bar 87 is always located inside the limit groove 78, and as the limit turntable 77 rotates, the contact position of the limit groove 78 and the transmission slide bar 87 is constantly changing, and the transmission slide bar 87 can only move along the direction of the moving slide bar 85 by connecting the sliding seat 86. When the limit turntable 77 rotates clockwise, it can drive all the transmission slide bars 87 to move synchronously to the outside of the clamp turntable 81. When the transmission slide bar 87 moves to the outside of the clamp turntable 81, it can drive the connecting sliding seat 86 to move along the moving slide bar 85 to the outside of the clamp turntable 81. When the connecting sliding seat 86 moves, it can drive the fixed clamping jaw 82 to move to the outside of the clamp turntable 81 through the connecting sleeve 88 and the buffer spring 89. When all the fixed clamping jaws 82 move to the outside of the clamp turntable 81, the fixed clamping jaw 82 can relax its grip on the part. When the disk 77 rotates counterclockwise, it can drive all the transmission slide bars 87 to move synchronously toward the center of the clamp turntable 81. When the transmission slide bar 87 moves toward the center of the clamp turntable 81, it can drive the connecting sliding seat 86 to move along the moving slide bar 85 toward the center of the clamp turntable 81. When the connecting sliding seat 86 moves, it can drive the fixed clamping jaw 82 to move toward the center of the clamp turntable 81 through the connecting sleeve 88 and the buffer spring 89. When all the fixed clamping jaws 82 move toward the center of the clamp turntable 81, the fixed clamping jaw 82 can clamp the part. After clamping the part, when the limit turntable 77 continues to rotate, the buffer spring 89 can be compressed to relieve the clamping force of the fixed clamping jaw 82 on the part. When the internal structure of the part changes during the processing, the rebound of the buffer spring 89 can also better clamp the part to prevent its external deformation from falling off the clamp.

[0060] Embodiment 4:

[0061] The difference from the above embodiment is that, please refer to Figure 5 - Fig.10 The adjusting mechanism 9 includes an adjusting ring 91 and a plurality of telescopic connecting rods 93. The adjusting ring 91 is rotatably mounted on the outside of the fixture turntable 81, and the telescopic connecting rods 93 are rotatably mounted on the inside of the fixture turntable 81. An adjusting rack 92 is provided on one side of the adjusting ring 91, and an adjusting screw 94 is provided on the telescopic end of the telescopic connecting rod 93. The telescopic end of the telescopic connecting rod 93 is rotatably connected to the connecting sleeve 88, and a transmission gear 95 is installed on the other end of the telescopic connecting rod 93;

[0062] One end of the telescopic connecting rod 93 passes through the transmission slide bar 87 and is rotatably connected to the connecting sleeve 88 . The outer portion of the adjusting screw 94 is threadedly connected to the connecting sliding seat 86 . The connecting sleeve 88 and the connecting sliding seat 86 are connected via the adjusting screw 94 .

[0063] One end of the telescopic connecting rod 93 connected to the transmission gear 95 extends out of the adjustment ring 91, and the adjustment ring 91 is meshed and connected with the transmission gear 95 connected to one end of the telescopic connecting rod 93 through an adjustment rack 92 provided on the outside;

[0064] When the adjusting ring 91 rotates, it can synchronously drive multiple telescopic connecting rods 93 to rotate by adjusting the connection between the rack 92 and multiple transmission gears 95. When the telescopic connecting rods 93 rotate, they can drive the adjusting screw 94 to rotate. When the adjusting screw 94 rotates, the position of the connecting sleeve 88 can be adjusted.

[0065] When the fixed jaw 82 clamps a part, the fixed jaw 82 and the connecting sleeve 88 are movably connected by a buffer spring 89, and the connecting sleeve 88 and the connecting sliding seat 86 are fixedly connected by an adjusting screw 94. At this time, by rotating the adjusting ring 91, the transmission gear 95 can be driven to rotate by adjusting the rack 92. When the transmission gear 95 rotates, the adjusting screw 94 can be driven to rotate by the telescopic connecting rod 93. When the adjusting screw 94 rotates, the position of the connecting sleeve 88 on the connecting sliding seat 86 can be adjusted. When the connecting sleeve 88 moves in the direction of the buffer spring 89, the buffer spring 89 can be compressed to increase the clamping force of the fixed jaw 82 on the part. When the connecting sleeve 88 moves in the direction of the transmission sliding rod 87, the buffer spring 89 can be extended to reduce the clamping force of the part. By rotating the adjusting ring 91, the clamping force of the fixed jaw 82 can be adjusted to adapt to parts with different structures and better prevent them from being damaged during the clamping process.

[0066] Embodiment five:

[0067] A turning and milling method for precision parts processing, using a CNC compound turning and milling machine tool as in Embodiments 1 to 4, comprises the following steps:

[0068] When working, first put the parts to be processed into the clamping mechanism 8, and then drive the clamping mechanism 8 to clamp the parts to be processed through the driving mechanism 7;

[0069] After the clamping mechanism 8 clamps the part to be processed, the clamping force of the clamping mechanism 8 is adjusted by the adjusting mechanism 9 according to the condition of the part;

[0070] Then the clamping mechanism 8 and the parts are driven by the driving mechanism 7 to move along the moving slide rail 5, and the parts are turned and milled by the milling mechanism 4 and the turning mechanism 6;

[0071] After the processing is completed, the driving mechanism 7 drives the clamping mechanism 8 to loosen the clamping of the parts.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC compound turning and milling machine tool, characterized in that: The device comprises a device body, a sliding cover plate is slidably installed on the outside of the device body, a processing chamber is opened inside the device body, a milling mechanism is installed inside the processing chamber, a moving slide rail is installed inside the processing chamber, a turning mechanism is slidably installed on the moving slide rail, a driving mechanism is installed on the moving slide rail, a clamping mechanism is installed outside the driving mechanism, and an adjusting mechanism is installed inside the clamping mechanism; The clamping mechanism and the adjusting mechanism are slidably installed on the movable slide rail through the driving mechanism, and the clamping mechanism moves laterally along the movable slide rail through the driving mechanism; the driving mechanism drives the clamping mechanism to clamp the parts that need to be turned and milled, and the clamping mechanism maintains a certain clamping force when clamping the parts, and the adjusting mechanism adjusts the clamping force of the clamping mechanism, and the driving mechanism drives the clamping mechanism and the clamped parts to move on the movable slide rail, and the milling mechanism and the turning mechanism perform turning and milling operations on the clamped parts; The clamping mechanism includes a clamp turntable, which is installed on the outside of the driving bin, and a plurality of fixed clamping claws are slidably installed inside the clamp turntable, and a plurality of fixed clamping claws are provided inside the plurality of fixed clamping claws, and a plurality of turntable slide grooves are installed inside the clamp turntable, and a moving slide rod is installed inside the plurality of turntable slide grooves, and a connecting sliding seat is slidably installed outside the moving slide rod, and a transmission slide rod is fixedly installed outside the connecting sliding seat, and a connecting sleeve is slidably installed outside the connecting sliding seat, and a buffer spring is installed inside the connecting sleeve. The turntable slide groove corresponds to the clamp slide groove opened inside the fixed clamp, and the corresponding turntable slide groove and clamp slide groove are slidingly connected. The movable slide rod is fixedly connected to the fixture turntable through the turntable slide groove, and the connecting sliding seat is connected to the inside of the clamp slide groove through the external connecting sleeve and buffer spring, and the outside of the connecting sleeve is connected to the adjusting mechanism; when the connecting sliding seat moves along the outside of the moving slide rod, it drives the fixed clamp to slide inside the fixture turntable, and when the fixed clamp slides inside the clamp turntable, it drives the clamp slide groove to slide along the outside of the turntable slide groove.

2. A CNC compound turning and milling machine tool according to claim 1, characterized in that: The driving mechanism includes a driving bin and a transmission shaft. The driving bin is slidably installed on the outside of the movable slide rail, one end of the transmission shaft is rotatably installed inside the driving bin, and the other end of the transmission shaft passes through the driving bin and extends into the clamping mechanism. A driving motor is installed inside the driving bin, and the driving end of the driving motor is connected to a motor roller. A transmission belt is installed outside the motor roller, and a shaft roller is installed outside the transmission shaft. The other end of the transmission shaft is connected to a limit turntable, and a limit groove is provided inside the limit turntable.

3. A CNC compound turning and milling machine tool according to claim 2, characterized in that: The motor roller at the driving end of the driving motor is connected to the central shaft roller outside the transmission central shaft through a transmission belt; The driving motor drives the transmission center shaft to rotate inside the driving bin through the transmission connection between the motor roller and the center shaft roller. When the transmission center shaft rotates, the limit turntable is driven to rotate synchronously.

4. A CNC compound turning and milling machine tool according to claim 3, characterized in that: The limit turntable is installed inside the clamping mechanism through the transmission center shaft, the limit groove opened inside the limit turntable is a spiral line structure, and the limit turntable is connected to the clamping mechanism through the internal limit groove; When the transmission center shaft drives the limit turntable to rotate, the connection between the limit slot and the clamping mechanism drives the clamping mechanism to clamp or release.

5. A CNC compound turning and milling machine tool according to claim 4, characterized in that: The tops of the plurality of transmission slide bars are all inserted into the limiting grooves provided on the limiting turntable, and when the limiting turntable rotates, the transmission slide bars are always located inside the limiting grooves; When the limit turntable rotates, multiple transmission slide bars synchronously drive multiple connecting slide seats to move along the moving slide bars. When the connecting slide seats move, the connecting sleeves and buffer springs drive the fixed clamps to move. When the fixed clamps move, they clamp or release the parts.

6. A CNC compound turning and milling machine tool according to claim 5, characterized in that: The adjustment mechanism includes an adjustment ring and a plurality of telescopic connecting rods, the adjustment ring is rotatably mounted on the outside of the fixture turntable, the telescopic connecting rod is rotatably mounted on the inside of the fixture turntable, an adjustment rack is arranged on one side of the adjustment ring, an adjustment screw is arranged on the telescopic end of the telescopic connecting rod, the telescopic end of the telescopic connecting rod is rotatably connected to the connecting sleeve, and a transmission gear is arranged on the other end of the telescopic connecting rod; One end of the telescopic connecting rod passes through the transmission sliding rod and is rotatably connected to the connecting sleeve, the outer portion of the adjusting screw is threadedly connected to the connecting sliding seat, and the connecting sleeve and the connecting sliding seat are connected through the adjusting screw.

7. A CNC compound turning and milling machine tool according to claim 6, characterized in that: One end of the telescopic connecting rod connected to the transmission gear extends out of the adjustment ring, and the adjustment ring is meshed and connected with the transmission gear connected to one end of the telescopic connecting rod through an adjustment rack provided on the outside; When the adjusting ring rotates, the multiple telescopic connecting rods are synchronously driven to rotate through the connection between the adjusting rack and the multiple transmission gears. When the telescopic connecting rods rotate, the adjusting screw is driven to rotate. When the adjusting screw rotates, the position of the connecting sleeve is adjusted.

8. A turning and milling method for precision parts machining, using a CNC compound turning and milling machine tool as claimed in claim 7.

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