Six-axis deep hole drilling machine tool

Abstract

The invention relates to a six-axis deep hole drilling machine tool which comprises a base, a Y-axis driving mechanism is arranged on the top face of the base, an X-axis driving mechanism is in driving connection with a workpiece clamping mechanism used for clamping and fixing a workpiece, the Y-axis driving mechanism is in driving connection with a vertically-arranged stand column, a Z-axis driving mechanism is arranged on the stand column and is in driving connection with a sliding table, and the sliding table is in driving connection with the X-axis driving mechanism. A first rotating shaft is rotationally arranged on the side, close to the workpiece clamping mechanism, of the sliding table. The axis of the first rotating shaft is parallel to the X axis. One end of the square ram is rotationally connected with the first rotating shaft, and the swing driving mechanism is installed on the sliding table, connected with the other end of the square ram and used for driving the square ram to swing with the axis of the first rotating shaft as the center; the hole tapping mechanism is mounted on the side, away from the Z-axis driving mechanism, of the square ram and used for tapping holes, holes with the hole axes inclined relative to the horizontal plane are machined, the machining precision is high, and the efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of deep hole processing, and more specifically, it relates to a six-axis deep hole drilling machine. Background Art

[0002] The spindle of the existing deep hole processing machine tool can move relatively in the directions of the three axes XYZ, so that the spindle drives the drill bit to process various parts of the workpiece. However, the existing deep hole processing machine tool cannot process holes on the workpiece that are inclined to the horizontal plane (the hole axis is inclined to the horizontal plane). In order to process the above holes, the workpiece needs to be re-clamped so that the hole axis of the above hole is inclined to the horizontal plane, and then processed by the existing deep hole processing machine tool. However, re-clamping the workpiece will cause fixture errors (including but not limited to positioning errors and clamping errors), and the processing efficiency cannot be further improved. Summary of the invention

[0003] In order to solve the problem that the hole volume in which the axis of the existing deep hole processing machine is inclined to the horizontal plane is prone to processing errors, resulting in product scrapping and low efficiency, the present application provides a six-axis deep hole drilling machine.

[0004] A six-axis deep hole drilling machine tool comprises a base, wherein the top surface of the base is provided with an X-axis driving mechanism whose driving direction is parallel to the X-axis and a Y-axis driving mechanism whose driving direction is parallel to the Y-axis, the Y-axis driving mechanism is located at one side of the X-axis driving mechanism, the X-axis driving mechanism is drivingly connected to a workpiece clamping mechanism for clamping and fixing a workpiece, the Y-axis driving mechanism is drivingly connected to a vertically arranged column, the column is provided with a Z-axis driving mechanism whose driving direction is parallel to the Z-axis, the Z-axis driving mechanism is drivingly connected to a slide, the slide is rotatably provided with a first rotating shaft on one side close to the workpiece clamping mechanism, and the axis centerline of the first rotating shaft is parallel to the X-axis;

[0005] It also includes a square slide, a swing drive mechanism and a tapping mechanism, one end of the square slide is rotatably connected to the first rotating shaft, the swing drive mechanism is installed on the slide and connected to the other end of the square slide for driving the square slide to swing around the axis of the first rotating shaft, and the tapping mechanism is installed on a side of the square slide away from the Z-axis drive mechanism for tapping.

[0006] Preferably, the swing drive mechanism includes a motor seat, a first servo motor, a screw rod, and a first linear module. The motor seat is fixed to the top of the slide. A second rotating shaft parallel to the first rotating shaft is rotatably provided on the motor seat. A connecting seat is provided at the output end of the first servo motor. The connecting seat is fixedly connected to the second rotating shaft. The screw rod passes through the connecting seat and is connected to the driving shaft of the first servo motor. The first linear module is fixed to an end of the slide away from the first rotating shaft and a threaded sleeve is provided on the piston of the first linear module. The threaded sleeve is threadedly connected to the screw rod. The driving direction of the first linear module is parallel to the X-axis, and the length direction of the screw rod intersects with the driving direction of the first linear module.

[0007] Preferably, an arc slide rail is provided at one end of the slide away from the first rotating shaft, and the arc slide rail extends with the axis of the first rotating shaft as the center of the circle, and a first arc slider matching the arc slide rail is provided in the middle of the square slide, and the first arc slider is slidably connected to the arc slide rail.

[0008] Preferably, the slide is also provided with a circular guide rail, the center of the circular guide rail coincides with the axis of the first rotating shaft, the square slide is provided with a second arc-shaped slider matching the circular guide rail, the second arc-shaped slider is slidably connected with the circular guide rail, and the square slide is also provided with a locking block, the locking block is provided with a groove matching the width of the circular guide rail, a section of the circular guide rail in the width direction is stuck in the groove, a through groove connected to the groove is provided on the side of the locking block, and a pressure block is movably provided in the through groove, and a locking cylinder is fixed on the locking block, and the locking cylinder is connected to the pressure block for driving the pressure block to press against or away from the circular guide rail.

[0009] Preferably, the tapping mechanism includes a second linear module, a tool holder, a second servo motor, a spindle, a drill guide assembly, and a drill support assembly. The second linear module is fixed on the square slide and its driving direction is consistent with the length extension direction of the square slide. The second linear module is connected to the tool holder for driving the tool holder to move. The spindle is rotatably connected to the tool holder and is parallel to the driving direction of the second linear module. The second servo motor is fixed to the tool holder and connected to the spindle for driving the spindle to rotate. A tool sleeve is provided at one end of the spindle for fixing the drill bit. The drill guide assembly is installed on one end of the square slide close to the workpiece clamping mechanism for guiding and supporting the drill bit. The drill support assembly is installed on the square slide for supporting the drill bit.

[0010] Preferably, the drill guide assembly includes a guide sleeve, a swing seat, a cylinder seat, a first oil cylinder, a rack, and a second oil cylinder, the swing seat is fixed to the upper side surface of the square slide and a third rotating shaft parallel to the first rotating shaft is rotatably provided thereon, the top of the guide sleeve is connected and fixed to the third rotating shaft, a gear is concentrically sleeved and fixed on the third rotating shaft, the cylinder seat is fixed to the upper side surface of the square slide and is located on one side of the swing seat, the first oil cylinder is fixed on the cylinder seat, and the first oil cylinder is connected and fixed to the rack, the rack is meshed with the gear, and the rack is driven by the first oil cylinder to move so that the third rotating shaft rotates and drives the guide sleeve to swing, the second oil cylinder is fixed to the top end of the cylinder seat and its telescopic shaft faces the guide sleeve, the guide sleeve is provided with a jack on a side close to the second oil cylinder for the telescopic shaft of the second oil cylinder to be inserted, and the guide sleeve is provided with a guide hole for the drill bit to penetrate.

[0011] Preferably, the drill guide assembly also includes a third oil cylinder, a fourth oil cylinder and a locking frame, the third oil cylinder is fixed on the square slide and is located on the side of the guide sleeve close to the workpiece clamping mechanism, the telescopic shaft of the third oil cylinder faces the guide sleeve and a pressure block is provided at its end, and a circular arc groove penetrating the thickness of the guide sleeve is recessed on the side close to the workpiece clamping mechanism, the circular arc groove extends with the third rotating shaft as the center, the circular arc groove is for the telescopic shaft of the third oil cylinder to pass through, and a side of the guide sleeve away from the square slide is also recessed with a receiving groove consistent with the extension direction of the circular arc groove, and the width of the receiving groove matches the The width of the pressing block, the locking frame includes an articulated seat and a swing arm, the articulated seat is fixed on the square slide, one end of the swing arm is hinged to the articulated seat, the other end of the swing arm is recessed with a slot facing the side of the guide sleeve, and a block matching the slot is provided on the side of the guide sleeve facing the swing arm. The fourth oil cylinder is fixed on the square slide and a first U-shaped seat is provided at the end of the telescopic shaft of the fourth oil cylinder. The first U-shaped seat is provided with a first articulated shaft and is hinged to the middle part of the swing arm through the first articulated shaft. The swing arm is driven by the fourth oil cylinder to swing in the direction of approaching or away from the guide sleeve.

[0012] Preferably, the drill bit support assembly includes a first linear slide rail and a second linear slide rail, a fixed seat, a flip seat, a support frame, a fifth oil cylinder, and a linkage arm. The first linear slide rail is fixed on the square slide and is located below the second linear module. The first linear slide rail is parallel to the main axis. A notch penetrating the thickness of the square slide rail is provided at the lower part of the square slide rail. The fixed seat is fixed to a side of the square slide rail close to the slide table and is located in a position corresponding to the notch. The fixed seat is rotatably provided with a fourth rotating shaft parallel to the first linear slide rail. The flip seat is in the notch and is fixedly connected to the fourth rotating shaft. The second linear slide is fixed on the flip seat and is parallel to the first linear slide and one end of the second linear slide is butted against the end of the first linear slide. The support frame is provided with a linear slider, and the linear slide is slidably connected to the second linear slide and can slide to the first linear slide. The fifth oil cylinder is fixed to a side of the square slide close to the slide table and its telescopic shaft is vertically downward. The telescopic shaft of the fifth oil cylinder is provided with a second U-shaped seat, and a second hinge shaft is provided on the second U-shaped seat. The second U-shaped seat is hinged to one end of the linkage arm through the second hinge shaft, and the other end of the linkage arm is connected and fixed to the fourth rotating shaft.

[0013] Preferably, the X-axis driving mechanism is an X-axis linear module whose driving direction is parallel to the X-axis, the Y-axis driving mechanism is a Y-axis linear module whose driving direction is parallel to the Y-axis, and the Z-axis driving mechanism is a Z-axis linear module whose driving direction is parallel to the Z-axis.

[0014] Preferably, the workpiece clamping mechanism includes a base body, a fifth rotating shaft, a third servo motor, a turntable, and a clamping fixture. The base body is connected to the X-axis driving mechanism, the fifth rotating shaft is rotatably arranged on the base body and is vertically arranged, the turntable is fixed to the top of the fifth rotating shaft and its rotation center coincides with the axis of the fifth rotating shaft, the third servo motor is fixed on the base body and connected to the fifth rotating shaft for driving the fifth rotating shaft to rotate, and the clamping fixture is fixed to the top surface of the turntable for fixing the workpiece.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The square slide is driven by a swing drive mechanism to swing in an arc trajectory with the axis of the first rotating shaft as the center, so that the tapping mechanism swings on the vertical plane, so that the tapping mechanism is inclined at an angle to the horizontal plane, which is convenient for processing deep holes with the hole axis inclined to the horizontal plane, so that the workpiece does not need to be re-clamped to realize the processing of deep holes with the hole axis inclined to the horizontal plane, thereby avoiding fixture errors, making the deep hole processing accuracy high, and reducing the waste of re-clamping the workpiece, which is beneficial to improving the processing efficiency of the workpiece.

[0017] 2. The first linear module is driven to drive the lead screw and the first servo motor to swing around the second rotating shaft, so that the lead screw swings in an arc trajectory in the vertical direction to match the trajectory that the square slide needs to swing. At the same time, the first servo motor is driven to rotate the lead screw, and the rotation of the lead screw drives the first linear module and the square slide to move along the length direction of the lead screw. When the lead screw swings synchronously in an arc trajectory, the square slide is driven to swing in an arc trajectory around the first rotating shaft, further realizing the swinging of the tapping mechanism on the vertical plane, so that the tapping mechanism is inclined at an angle to the horizontal plane, and the servo motor cooperates with the lead screw to swing the square slide, so that the swing stroke accuracy of the square slide is higher and the swing speed is faster, thereby further improving the processing efficiency of the workpiece, and the driving lengths of the lead screw and the linear module can be set longer. Compared with the drive of a single lead screw, the cooperation of the two is conducive to the large-angle swing of the square slide, and the wider swing angle range of the square slide enables a wider processing range of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a six-axis deep hole drilling machine tool of this embodiment.

[0019] Figure 2 It is a schematic diagram of the first angle connection structure between the square slide and the tapping mechanism of this embodiment.

[0020] Figure 3 It is a schematic diagram of the second angle connection structure between the square slide and the tapping mechanism of this embodiment.

[0021] Figure 4 This is a schematic diagram of the first angle structure of the drill guide assembly of this embodiment.

[0022] Figure 5 This is a schematic diagram of the second angle structure of the drill guide assembly of this embodiment.

[0023] Figure 6 Schematic diagram of the structure of the drill bit support assembly of this embodiment.

[0024] Figure numerals: 1, base; 2, X-axis driving mechanism; 3, Y-axis driving mechanism; 4, workpiece clamping mechanism; 41, base body; 42, fifth rotating shaft; 43, third servo motor; 44, turntable; 45, clamping fixture; 5, column; 51, Z-axis driving mechanism; 6, slide; 61, first rotating shaft; 62, arc slide rail; 63, circular guide rail; 7, square slide; 71, first arc slider; 72, second arc slider; 73, locking block; 731, groove; 732, through groove; 733, abutment block; 734, locking cylinder; 74, notch; 8, swing driving mechanism; 81, motor base; 811, second rotating shaft; 82, first servo motor; 83, screw rod; 84, first linear module; 841, threaded sleeve; 9, tapping mechanism; 91, second linear module; 92. tool holder; 93. second servo motor; 94. spindle; 941. tool sleeve; 95. drill guide assembly; 951. guide sleeve; 9511. guide hole; 9512. jack; 9513. arc groove; 9514. receiving groove; 952. swing seat; 9521. third rotating shaft; 953. oil cylinder seat; 954. first oil cylinder; 955. rack; 956. second oil cylinder; 957. third oil cylinder; 9571. pressing block; 958. fourth oil cylinder; 959. locking frame; 9591. articulated seat; 9592. swing arm; 96. drill support assembly; 961. first linear slide; 962. second linear slide; 963. fixed seat; 9631. fourth rotating shaft; 964. flip seat; 965. support frame; 966. fifth oil cylinder; 967. linkage arm; DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1A six-axis deep hole drilling machine comprises a base 1, an X-axis driving mechanism 2 and a Y-axis driving mechanism 3 are arranged on the top surface of the base 1, the driving direction of the X-axis driving mechanism 2 is parallel to the X-axis, the driving direction of the Y-axis driving mechanism 3 is parallel to the Y-axis, the Y-axis driving mechanism 3 is on one side of the X-axis driving mechanism 2, the X-axis driving mechanism 2 is drivingly connected to a workpiece mounting mechanism, the workpiece mounting mechanism is used to clamp and fix the workpiece, the Y-axis driving mechanism 3 is drivingly connected to a vertically arranged column 5, a Z-axis driving mechanism 51 is arranged on the column 5, the driving line of the Z-axis driving mechanism 51 is parallel to the Z-axis direction and perpendicular to the horizontal ground, the Z-axis driving mechanism 51 is drivingly connected to a slide 6, a first rotating shaft 61 (not shown in the figure) is rotatably arranged on one side of the slide 6 close to the workpiece clamping mechanism 4, and the axis line of the first rotating shaft 61 is parallel to the X-axis.

[0027] Reference Figure 1 A six-axis deep hole drilling machine also includes a square slide 7, a swing drive mechanism 8 and a tapping mechanism 9. One end of the square slide 7 is rotatably connected to the first rotating shaft 61. The swing drive mechanism 8 is installed on the slide 6 and connected to the other end of the square slide 7. The swing drive mechanism 8 is used to drive the square slide 7 to swing around the axis of the first rotating shaft 61. The tapping mechanism 9 is installed on the side of the square slide 7 away from the Z-axis drive mechanism 51. The tapping mechanism 9 is used to tap the workpiece.

[0028] Reference Figure 1 In the above structure, the Y-axis driving mechanism 3 drives the column 5 to move toward the workpiece mounting mechanism direction so that the tapping mechanism 9 is close to the workpiece clamped and fixed by the workpiece clamping mechanism 4, and the Z-axis driving mechanism 51 drives the slide table 6 to move up and down to drive the square slide 7 and the tapping mechanism 9 to move up and down so that the tapping mechanism 9 can tap the workpiece at various positions in the height direction of the workpiece, and the X-axis driving mechanism 2 drives the workpiece clamping mechanism 4 to move along the X-axis direction so that the tapping mechanism 9 can tap the workpiece at various positions in the width direction of the workpiece, and the swing driving mechanism 8 drives the square slide 7 to swing in an arc trajectory with the axis of the first rotating shaft 61 as the center to achieve tapping. The mechanism 9 swings on the vertical plane so that the tapping mechanism 9 is inclined at an angle to the horizontal plane, which is convenient for machining a deep hole with the hole axis inclined to the horizontal plane, so that the workpiece does not need to be re-clamped to achieve the deep hole with the hole axis inclined to the horizontal plane, thereby avoiding fixture errors, making the deep hole machining accuracy high, and reducing the waste of re-clamping the workpiece, which is beneficial to improving the machining efficiency of the workpiece. At the same time, when the Z-axis drive mechanism 51 drives the slide 6 to be higher than the workpiece, the square slide 7 is driven to swing by the swing drive mechanism 8 to make the tapping mechanism 9 tap the workpiece downward, thereby realizing tapping the workpiece from its top surface downward.

[0029] Reference Figure 1Furthermore, the X-axis driving mechanism 2 is selected as an X-axis linear module with a driving direction parallel to the X-axis, the Y-axis driving mechanism 3 is selected as a Y-axis linear module with a driving direction parallel to the Y-axis, and the Z-axis driving mechanism 51 is a Z-axis linear module with a driving direction parallel to the Z-axis. The column 5 and the workpiece clamping mechanism 4 are driven to move by the linear module so that the moving stroke accuracy of the two is high, which is conducive to achieving high-precision processing.

[0030] Reference Figure 1 Further, the swing drive mechanism 8 includes a motor seat 81, a first servo motor 82, a screw rod 83, and a first linear module 84. The motor seat 81 is fixed to the top of the slide 6. A second rotating shaft 811 parallel to the first rotating shaft 61 is rotatably provided on the motor seat 81. A connecting seat is provided at the output end of the first servo motor 82. The connecting seat is fixedly connected to the second rotating shaft 811. The screw rod 83 passes through the connecting seat and is connected to the driving shaft of the first servo motor 82. The first linear module 84 is fixed to one end of the slide 6 away from the first rotating shaft 61 and a threaded sleeve 841 is provided on the piston of the first linear module 84. The threaded sleeve 841 is threadedly connected to the screw rod 83. The driving direction of the first linear module 84 is parallel to the X-axis, and the length direction of the screw rod 83 intersects with the driving direction of the first linear module 84. The structural composition of the swing drive mechanism 8 In the process, the first linear module 84 is driven to drive the screw rod 83 and the first servo motor 82 to swing around the second rotating shaft 811, so that the screw rod 83 swings in an arc trajectory in the vertical direction to match the trajectory that the square slide 7 needs to swing. At the same time, the first servo motor 82 drives the screw rod 83 to rotate, and the rotation of the screw rod 83 drives the first linear module 84 and the square slide 7 to move along the length direction of the screw rod 83. When the screw rod 83 swings in an arc trajectory synchronously, the square slide 7 is driven to swing in an arc trajectory around the first rotating shaft 61, and the tapping mechanism 9 is further swung on the vertical plane, so that the tapping mechanism 9 is inclined at an angle to the horizontal plane, and the servo motor cooperates with the screw rod 83 to swing the square slide 7, so that the square slide 7 has a higher swing stroke accuracy and a faster swing speed, thereby further improving the processing efficiency of the workpiece.

[0031] Reference Figure 1 and Figure 2 Furthermore, an arc slide rail 62 is provided at one end of the slide 6 away from the first rotating shaft 61, and the arc slide rail 62 extends with the axis of the first rotating shaft 61 as the center of the circle. A first arc slider 71 matching the arc slide rail 62 is provided in the middle of the square slide 7. The first arc slider 71 is slidably connected to the arc slide rail 62. The square slide 7 is slidably supported by the arc slide rail 62, so that the square slide rail is more stable when swinging.

[0032] Reference Figure 1 and Figure 2Furthermore, a circular guide rail 63 is also provided on the slide 6, the center of the circular guide rail 63 coincides with the axis of the first rotating shaft 61, and a second arc-shaped slider 72 matching the circular guide rail 63 is provided on the square slide 7. The second arc-shaped slider 72 is slidably connected to the circular guide rail 63, and the square slide 7 is supported by the circular guide rail 63, thereby reducing the load of the square slide 7 on the first rotating shaft 61, and further making the swing of the square slide 7 more stable and smooth. When the locking cam 73 is in the state of being moved along the cam 74, the locking cam 73 is in the state of being moved along the cam 74. When the locking cam 73 is in the state of being moved along the cam 74, the cam 74, when being moved along the cam 74, the cam 74 is in the state of being moved along the cam 74.

[0033] Reference Figure 3 Furthermore, the tapping mechanism 9 includes a second linear module 91, a tool holder 92, a second servo motor 93, and a spindle 94. The second linear module 91 is fixed to the side of the square ram 7 away from the Z-axis driving mechanism 51, and its driving direction is consistent with the length extension direction of the square ram 7. The second linear module 91 is connected to the tool holder 92 to drive the tool holder 92 to move, so that the tool holder 92 can slide back and forth along the direction of the ram length extension. The spindle 94 is rotatably connected to the tool holder 92 and is connected to the driving direction of the second linear module 91. The spindle 94 is parallel to the moving direction, and a tool sleeve 941 is provided at one end of the spindle 94 facing the workpiece clamping mechanism 4. The tool sleeve 941 is used to fix the drill bit. The tool holder 92 is driven to move by the second linear module 91 to realize the drill bit to feed and retract the workpiece. The second servo motor 93 is fixed on the tool holder 92 and connected to the spindle 94 to drive the spindle 94 to rotate. The rotation of the spindle 94 drives the drill bit to rotate, and the workpiece is cut by the rotation of the drill bit. The drill bit feeds into the workpiece and rotates at the same time to tap the workpiece.

[0034] Reference Figure 3 , Figure 4 and Figure 5Furthermore, since the drill bit used for drilling deep holes is relatively slender, it is easy to bend or deflect during the drilling process. In order to improve the accuracy and straightness of the hole, in this embodiment, the tapping mechanism 9 also includes a drill guide assembly 95, and the drill guide assembly 95 is used to guide and support the drill bit. Specifically, the drill guide assembly 95 includes a guide sleeve 951, a swing seat 952, a cylinder seat 953, a first cylinder 954, a rack 955, and a second cylinder 956. The swing seat 952 is fixed to the upper side of the square slide 7 and a third shaft 9 is rotatably provided thereon. 521, the third rotating shaft 9521 is parallel to the first rotating shaft 61, the top of the guide sleeve 951 is connected and fixed to the third rotating shaft 9521, so that the guide sleeve 951 can swing around the third rotating shaft 9521, the cylinder seat 953 is fixed to the upper side of the square slide 7 and is on one side of the swing seat 952, the first cylinder 954 is fixed to the cylinder seat 953, and the first cylinder 954 is connected and fixed to the rack 955, and a gear is concentrically sleeved and fixed on the third rotating shaft 9521, and the gear is meshed with the rack 955 to realize the guide sleeve 951 The guide sleeve 951 is fixed, and a guide hole 9511 is provided on the guide sleeve 951. In the fixed state of the guide sleeve 951, the guide hole 9511 is used for the drill bit to pass through. The drill bit is limited by the guide hole 9511 and supported by the guide sleeve 951 to guide and support the drill bit. Further, the rack 955 is driven to move by the first oil cylinder 954 to drive the third rotating shaft 9521 to rotate so that the guide sleeve 951 automatically swings. The second oil cylinder 956 is fixed to the top of the oil cylinder seat 953 and its telescopic shaft faces the guide sleeve 951. The guide sleeve 951 is close to the third rotating shaft 9521. A socket 9512 (not shown in the figure) is provided on one side of the second oil cylinder 956, and the telescopic shaft of the second oil cylinder 956 is inserted into the socket 9512. When the guide sleeve 951 swings to align the socket 9512 with the telescopic shaft of the second oil cylinder 956, the telescopic shaft of the second oil cylinder 956 is inserted into the socket 9512 to fix the guide sleeve 951. In this fixed state, the guide sleeve 951 avoids the drill bit, which is beneficial for avoiding the drill bit when the drill bit does not need guide support, thereby reducing the impact on the displacement of the drill bit stroke.

[0035] Reference Figure 3 , Figure 4 and Figure 5Furthermore, the drill guide assembly 95 also includes a third oil cylinder 957, a fourth oil cylinder 958 and a locking frame 959. The third oil cylinder 957 is fixed on the square ram 7 and is located on the side of the guide sleeve 951 close to the workpiece clamping mechanism 4. The telescopic axis of the third oil cylinder 957 faces the guide sleeve 951 and a pressing block 9571 is provided at its end. A circular arc groove 9513 running through the thickness of the guide sleeve 951 close to the workpiece clamping mechanism 4 is recessed on the side of the guide sleeve 951 close to the workpiece clamping mechanism 4. The circular arc groove 9513 extends with the third rotating shaft 9521 as the center of the circle. The circular arc groove 9513 is for the telescopic axis of the third oil cylinder 957 to pass through. A side of the guide sleeve 951 away from the square ram 7 is recessed with a receiving groove 9514 in the same direction as the extension direction of the circular arc groove 9513. The receiving groove 9514 is provided with a receiving groove 9514 in the same direction as the extension direction of the circular arc groove 9513. 514 The width matches the width of the pressure block 9571. The locking frame 959 includes an articulated seat 9591 and a swing arm 9592. The articulated seat 9591 is fixed on the square slide 7. One end of the swing arm 9592 is hinged to the articulated seat 9591. The other end of the swing arm 9592 is recessed with a slot on the side facing the guide sleeve 951. A block matching the slot is provided on the side of the guide sleeve 951 facing the swing arm 9592. The fourth oil cylinder 958 is fixed on the square slide 7 and a first U-shaped seat is provided at the end of the telescopic shaft of the fourth oil cylinder 958. The first U-shaped seat is provided with a first hinge shaft and is hinged to the middle part of the swing arm 9592 through the first hinge shaft. The swing arm 9592 is driven by the fourth oil cylinder 958 to swing in the direction of approaching or moving away from the guide sleeve 951. When the guide hole 9511 provided in the guide sleeve 951 is aligned with the drill bit, the telescopic shaft of the third oil cylinder 957 penetrates into the arc groove 9513 and is in the receiving groove 9514, and the third oil cylinder 957 drives the pressing block 9571 to move toward the inner wall of the receiving groove 9514 and press against the inner wall of the receiving groove 9514 to further lock the guide sleeve 951, and in this state, the fourth oil cylinder 958 drives the swing arm 9592 to swing toward the direction close to the guide sleeve 951 so that the swing arm 9592 presses against the inner wall of the receiving groove 9514. The side wall of the guide sleeve 951 and the card block are inserted into the card slot to further limit the swing of the guide sleeve 951, so that the guide sleeve 951 is more stable when guiding and supporting the drill bit, and is not easily deflected by force, thereby reducing the collision between the guide sleeve 951 and the drill bit. When the guide sleeve 951 needs to swing, the third oil cylinder 957 drives the pressure block 9571 away from the inner wall of the accommodating groove 9514 and the fourth oil cylinder 958 drives the swing arm 9592 away from the guide sleeve 951 to achieve the swing avoidance of the guide sleeve 951.

[0036] Reference Figure 3 and Figure 6Furthermore, in order to facilitate the disassembly and assembly of the drill bit, the tapping mechanism 9 is also provided with a drill bit support assembly 96, which includes a first linear slide 961 and a second linear slide 962, a fixed seat 963, a flip seat 964, a support frame 965, a fifth oil cylinder 966, and a linkage arm 967. The first linear slide 961 is fixed on the square slide 7 and is located below the second linear module 91, and the first linear slide 961 is parallel to the main shaft 94. The lower part of the square slide 7 is provided with a notch 74 that penetrates its own thickness. The fixed seat 963 is fixed to a side of the square slide 7 close to the slide table 6 and is located at the position of the alignment notch 74. The fixed seat 963 is rotatably provided with a fourth rotating shaft 9631 parallel to the first linear slide 961. The flip seat 964 is in the notch 74 and is fixedly connected to the fourth rotating shaft 9631. The second linear slide 962 is fixed on the flip seat 964 and is parallel to the first linear slide 961 and one end thereof The first linear slide 961 is connected to the second linear slide 962 and can slide to the first linear slide 961. There are multiple support frames 965. The fifth oil cylinder 966 is fixed to the side of the square slide 7 close to the slide 6 and its telescopic axis is vertically downward. The telescopic axis of the fifth oil cylinder 966 is provided with a second U-shaped seat. The second U-shaped seat is provided with a second hinge axis. The second U-shaped seat is hinged to one end of the linkage arm 967 through the second hinge axis. The other end of the linkage arm 967 is connected and fixed to the fourth rotating shaft 9631. The drill bit support assembly 96 adopts the above-mentioned structural design. A plurality of support frames 965 are arranged on the first linear slide 961 and are located below the drill bit. When disassembling and assembling the drill bit, the drill bit is placed on the plurality of support frames 965. The drill bit is supported by the plurality of support frames 965, so that the support frames 965 are close to the support bit to facilitate the disassembly and assembly of the drill bit. When the support frame 965 is not needed, the support frame 965 can be slid onto the second linear slide rail 962, and the fifth oil cylinder 966 drives the linkage arm 967 to swing to rotate the fourth rotating shaft 9631. The rotation of the fourth rotating shaft 9631 causes the flip seat 964 to flip downward, driving the support frame 965 to flip downward, thereby avoiding the drill bit from entering.

[0037] Reference Figure 1Furthermore, the workpiece clamping mechanism 4 includes a base body 41, a fifth rotating shaft 42, a third servo motor 43, a turntable 44, and a clamping fixture 45. The base body 41 is connected to the X-axis driving mechanism 2. The fifth rotating shaft 42 (not shown in the figure) is rotatably arranged on the base body 41 and is vertically arranged. The turntable 44 (not shown in the figure) is fixed to the top of the fifth rotating shaft 42 and its rotation center coincides with the axis of the fifth rotating shaft 42. The third servo motor 43 is fixed to the base body 41 and connected to the fifth rotating shaft 42 to drive the fifth rotating shaft 42 to rotate. The clamping fixture 45 is fixed to the top surface of the turntable 44 to fix the workpiece. The clamping fixture 45 is the existing technology. In this embodiment, without too much limitation, the third servo motor 43 drives the turntable 44 to rotate to realize the rotation of the clamping fixture 45 and drive the workpiece to rotate, so that the peripheral side surfaces of the workpiece can be aligned to the tapping mechanism 9, so that the tapping mechanism 9 can tap holes from the peripheral side surfaces of the workpiece, and the processing range is wider.

[0038] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A six-axis deep hole drilling machine, characterized in that: A base is included, wherein an X-axis driving mechanism having a driving direction parallel to the X-axis and a Y-axis driving mechanism having a driving direction parallel to the Y-axis are arranged on the top surface of the base, the Y-axis driving mechanism is located at one side of the X-axis driving mechanism, the X-axis driving mechanism is drivably connected to a workpiece clamping mechanism for clamping and fixing a workpiece, the Y-axis driving mechanism is drivably connected to a vertical column, the column is provided with a Z-axis driving mechanism having a driving direction parallel to the Z-axis, the Z-axis driving mechanism is drivably connected to a slide, a first rotating shaft is rotatably arranged on one side of the slide close to the workpiece clamping mechanism, and the axis centerline of the first rotating shaft is parallel to the X-axis; It also includes a square slide, a swing drive mechanism and a tapping mechanism, one end of the square slide is rotatably connected to the first rotating shaft, the swing drive mechanism is installed on the slide and connected to the other end of the square slide for driving the square slide to swing around the axis of the first rotating shaft, and the tapping mechanism is installed on a side of the square slide away from the Z-axis drive mechanism for tapping.

2. The six-axis deep hole drilling machine according to claim 1, characterized in that: The swing drive mechanism includes a motor seat, a first servo motor, a screw rod, and a first linear module. The motor seat is fixed to the top of the slide. A second rotating shaft parallel to the first rotating shaft is rotatably arranged on the motor seat. A connecting seat is arranged at the output end of the first servo motor. The connecting seat is fixedly connected to the second rotating shaft. The screw rod passes through the connecting seat and is connected to the driving shaft of the first servo motor. The first linear module is fixed to one end of the slide away from the first rotating shaft and a threaded sleeve is arranged on the piston of the first linear module. The threaded sleeve is threadedly connected to the screw rod. The driving direction of the first linear module is parallel to the X-axis, and the length direction of the screw rod intersects with the driving direction of the first linear module.

3. The six-axis deep hole drilling machine according to claim 1, characterized in that: A circular arc slide rail is arranged at one end of the slide away from the first rotating shaft, and the circular arc slide rail extends with the axis of the first rotating shaft as the center of the circle. A first arc-shaped slider matching the circular arc slide rail is arranged in the middle of the square slide, and the first arc-shaped slider is slidably connected to the circular arc slide rail.

4. The six-axis deep hole drilling machine according to claim 2, characterized in that: The slide is also provided with a circular guide rail, the center of the circular guide rail coincides with the axis of the first rotating shaft, the square slide is provided with a second arc-shaped slider matching the circular guide rail, the second arc-shaped slider is slidably connected with the circular guide rail, and the square slide is also provided with a locking block, the locking block is provided with a groove matching the width of the circular guide rail, a section of the circular guide rail in the width direction is stuck in the groove, a through groove communicating with the groove is provided on the side of the locking block, and a pressure block is movably provided in the through groove, and a locking cylinder is fixed on the locking block, and the locking cylinder is connected to the pressure block for driving the pressure block to press against or away from the circular guide rail.

5. The six-axis deep hole drilling machine according to claim 1, characterized in that: The tapping mechanism includes a second linear module, a tool holder, a second servo motor, a spindle, a drill guide assembly, and a drill support assembly. The second linear module is fixed on the square slide and its driving direction is consistent with the length extension direction of the square slide. The second linear module is connected to the tool holder to drive the tool holder to move. The spindle is rotationally connected to the tool holder and is parallel to the driving direction of the second linear module. The second servo motor is fixed to the tool holder and connected to the spindle to drive the spindle to rotate. A tool sleeve is provided at one end of the spindle to fix the drill bit. The drill guide assembly is installed on one end of the square slide close to the workpiece clamping mechanism for guiding and supporting the drill bit. The drill support assembly is installed on the square slide to support the drill bit.

6. The six-axis deep hole drilling machine according to claim 5, characterized in that: The drill guide assembly includes a guide sleeve, a swing seat, a cylinder seat, a first oil cylinder, a rack, and a second oil cylinder. The swing seat is fixed to the upper side surface of the square slide and a third rotating shaft parallel to the first rotating shaft is rotatably provided thereon. The top of the guide sleeve is connected and fixed to the third rotating shaft, and a gear is concentrically sleeved and fixed on the third rotating shaft. The cylinder seat is fixed to the upper side surface of the square slide and is located on one side of the swing seat. The first oil cylinder is fixed to the cylinder seat, and the first oil cylinder is connected and fixed to the rack, and the rack is meshed with the gear. The rack is driven to move by the first oil cylinder to rotate the third rotating shaft and drive the guide sleeve to swing. The second oil cylinder is fixed to the top of the cylinder seat and its telescopic shaft faces the guide sleeve. A jack is provided on the side of the guide sleeve close to the second oil cylinder for inserting the telescopic shaft of the second oil cylinder, and the guide sleeve is provided with a guide hole for the drill bit to penetrate.

7. The six-axis deep hole drilling machine according to claim 6, characterized in that: The drill guide assembly also includes a third oil cylinder, a fourth oil cylinder and a locking frame, the third oil cylinder is fixed on the square slide and is located on the side of the guide sleeve close to the workpiece clamping mechanism, the telescopic shaft of the third oil cylinder faces the guide sleeve and a pressure block is arranged at its end, and a circular arc groove penetrating the thickness of the guide sleeve is recessed on the side close to the workpiece clamping mechanism, the circular arc groove extends with the third rotating shaft as the center, the circular arc groove is for the telescopic shaft of the third oil cylinder to pass through, and a side of the guide sleeve away from the square slide is also recessed with a receiving groove consistent with the extension direction of the circular arc groove, and the width of the receiving groove matches the pressure block The width of the locking frame includes an articulated seat and a swing arm, the articulated seat is fixed on the square slide, one end of the swing arm is hinged to the articulated seat, the other end of the swing arm is recessed with a slot facing the side of the guide sleeve, and a block matching the slot is provided on the side of the guide sleeve facing the swing arm. The fourth oil cylinder is fixed on the square slide and a first U-shaped seat is provided at the end of the telescopic shaft of the fourth oil cylinder. The first U-shaped seat is provided with a first articulated shaft and is hinged to the middle part of the swing arm through the first articulated shaft. The swing arm is driven by the fourth oil cylinder to swing in the direction of approaching or moving away from the guide sleeve.

8. The six-axis deep hole drilling machine according to claim 5, characterized in that: The drill bit support assembly includes a first linear slide rail and a second linear slide rail, a fixed seat, a flip seat, a support frame, a fifth oil cylinder, and a linkage arm. The first linear slide rail is fixed on the square slide and is located below the second linear module. The first linear slide rail is parallel to the main axis. A notch penetrating the thickness of the square slide rail is provided at the lower part of the square slide rail. The fixed seat is fixed to a side of the square slide rail close to the slide table and is located in a position corresponding to the notch. The fixed seat is rotatably provided with a fourth rotating shaft parallel to the first linear slide rail. The flip seat is in the notch and is fixedly connected to the fourth rotating shaft. The second The linear slide is fixed on the flip seat and is parallel to the first linear slide and one end of the linear slide is butted against the end of the first linear slide. The support frame is provided with a linear slider, the linear slide is slidably connected to the second linear slide and can slide to the first linear slide. The fifth oil cylinder is fixed to a side of the square slide close to the slide table and its telescopic shaft is vertically downward. The telescopic shaft of the fifth oil cylinder is provided with a second U-shaped seat, and a second hinge shaft is provided on the second U-shaped seat. The second U-shaped seat is hinged to one end of the linkage arm through a second hinge shaft, and the other end of the linkage arm is connected and fixed to the fourth rotating shaft.

9. The six-axis deep hole drilling machine according to claim 1, characterized in that: The X-axis driving mechanism is an X-axis linear module whose driving direction is parallel to the X-axis, the Y-axis driving mechanism is a Y-axis linear module whose driving direction is parallel to the Y-axis, and the Z-axis driving mechanism is a Z-axis linear module whose driving direction is parallel to the Z-axis.

10. The six-axis deep hole drilling machine according to claim 1, characterized in that: The workpiece clamping mechanism includes a base body, a fifth rotating shaft, a third servo motor, a turntable, and a clamping fixture. The base body is connected to the X-axis driving mechanism. The fifth rotating shaft is rotatably arranged on the base body and is vertically arranged. The turntable is fixed to the top of the fifth rotating shaft and its rotation center coincides with the axis of the fifth rotating shaft. The third servo motor is fixed to the base body and connected to the fifth rotating shaft for driving the fifth rotating shaft to rotate. The clamping fixture is fixed to the top surface of the turntable for fixing the workpiece.

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