A CNC axial inner circumference drilling and tapping device

Abstract

The present invention discloses a numerically controlled axial inner circumference drilling and tapping device, which is used for professional and precise processing of radial holes and radial threaded holes on the inner side wall of a cylindrical workpiece. It includes an inner circumferential axial hole processing device, which has a shaft frame, on which a spindle motor that can move along the length direction of the shaft frame and perpendicular to the length direction is arranged; it also includes a base, which has a body for supporting, on which a first support is fixedly arranged, the first support is used to support and set the shaft frame, the length direction of the shaft frame is horizontally arranged on the first support, and the shaft frame can rotate around the length direction of the shaft frame on the first support; it also includes a mounting device, which has a V-shaped support with an upward opening, the V-shaped support is arranged on the body, and the V-shaped support is movably or fixedly arranged directly below the shaft frame.

Description

Technical Field

[0001] The invention relates to a drilling device, in particular to a numerically controlled axial inner circumference drilling and tapping device. Background Art

[0002] In mechanics, screw holes (threaded holes) are full name screw through holes, which are used to install screws on workpieces. The screw holes have threads inside, which are used to thread with corresponding screws. Screws are round metal rods with a head at one end and threads at the other end. Without nuts, they are screwed directly into the threaded round holes on parts to connect or fix the position of parts.

[0003] When processing threaded holes, a drill is usually used as a tool to machine a low hole on the workpiece to be processed, and then a tap is used as a tool to machine threads on the inside of the bottom hole (this process is called tapping).

[0004] The threaded hole processing of ordinary workpieces can be done by drilling or tapping with equipment such as bench drills or milling machines, such as processing threaded holes on plates. However, for processing threaded holes on the inner wall of cylindrical workpieces, that is, processing threaded holes in the inner radial direction of the cylinder, such threaded hole processing operations are very difficult. If the inner diameter of the workpiece is usually small, people cannot directly enter, and it is inconvenient to do it manually. In addition, bench drills, milling machines or other such CNC equipment cannot operate, so it is quite difficult.

[0005] Especially for the outer rotor barrel of large motors, the inner diameter is only about 1 meter, or even smaller, and the length is about 1.4 meters. Several threaded holes with strict arrangement rules and position and dimensional accuracy are required in the barrel. The design accuracy is usually plus or minus 0.1 mm, and the circumferential spacing is only 6 or 12 degrees. The difficulty of processing control is very great. If the processing deviation is large and the workpiece does not meet the standard, then the production costs including milling and material preparation before that are all wasted, which brings great losses to the enterprise.

[0006] Therefore, it is urgent to overcome the difficulties in machining radial holes and radial threaded holes on the inner wall of cylindrical workpieces and to produce equipment that specializes in accurately machining radial holes and radial threaded holes on the inner wall of cylindrical workpieces. Summary of the invention

[0007] The purpose of the present invention is to provide a numerically controlled axial inner circumference drilling and tapping device for professional and precise machining of radial holes and radial threaded holes on the inner side wall of a cylindrical workpiece.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A numerically controlled axial inner circumference drilling and tapping device includes an inner circumferential axial hole processing device, which has a shaft frame, on which a spindle motor that can move along the length direction of the shaft frame and perpendicular to the length direction is arranged; it also includes a base, which has a body for supporting, on which a first support is fixedly arranged, the first support is used to support and set the shaft frame, the shaft frame is horizontally arranged on the first support in the length direction, and the shaft frame can rotate around the length direction of the shaft frame on the first support; it also includes a mounting device, which has a V-shaped support with an opening upward, the V-shaped support is arranged on the body, and the V-shaped support is movably or fixedly arranged directly below the shaft frame.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the axis of the output shaft of the spindle motor intersects the axis of the rotating shaft of the shaft frame at right angles.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the spindle motor is a double-headed electric spindle.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the axis frame includes a mounting flange for fixedly connecting the first support, the first connecting seat is rotatably arranged on the mounting flange, the first frame body is vertically fixedly arranged on the first connecting seat, the first frame body is provided with a first track arranged along the length direction, the first track is provided with a first mounting plate slidably connected thereto through a first slider, the first mounting plate is fixedly provided with a second slider, the second track is provided on the second slider for sliding cooperation therewith, the second track is perpendicular to the first track and the second mounting plate is fixedly provided on the second track, the spindle motor is provided on the second mounting plate, and the output shaft of the spindle motor is parallel to the second track, the first frame body is provided with a first feed drive to control the first mounting plate to slide along the first track, the first mounting plate is provided with a second feed drive to control the second mounting plate to slide relative to the first mounting plate, and the mounting flange is provided with a third feed drive to control the first connecting seat to rotate relative to the mounting flange.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme: the first feed drive includes a first screw rod rotatably arranged on the first frame, a first servo motor is arranged on the first frame and is transmission-connected to the first screw rod, and a first nut is arranged on the first mounting plate and is threadedly connected to the first screw rod; the second feed drive includes a rotatable second screw rod arranged on the first mounting plate, a second nut is arranged on the second mounting plate and is threadedly connected to the second screw rod, and a second servo motor is arranged on the first mounting plate and is transmission-connected to the second screw rod; the third feed drive includes a third servo motor fixedly arranged on the mounting flange, and the output shaft of the third servo motor is transmission-connected to the first connecting seat coaxially with the rotating shaft of the first connecting seat.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: a second frame body fixedly connected to the first connecting seat is arranged on the opposite side of the first frame body, a third mounting plate that can slide parallel to the first track is arranged on the second frame body, and a first moving drive is arranged on the second frame body to control the sliding of the third mounting plate.

[0015] On the basis of the above scheme and as a preferred scheme of the above scheme: the first mobile drive includes a third screw rod rotatably arranged on the second frame, a control motor is arranged on the second frame and is transmission-connected to the third screw rod, and a third nut is arranged on the third mounting plate and is threadedly connected to the third screw rod.

[0016] On the basis of the above scheme and as a preferred scheme of the above scheme: the control motor is a servo motor or a stepper motor.

[0017] On the basis of the above scheme and as a preferred scheme of the above scheme: the first support includes a seat body fixedly connected to the body, a horizontal support body is arranged on the seat body, the support body is in the shape of a hollow tube, the end of the support body far from the seat body has a fixed flange, the middle of the fixed flange has an avoidance hole, and the mounting flange is fixed to the fixed flange by screw connection.

[0018] On the basis of the above scheme and as a preferred scheme of the above scheme: the second connecting seat is fixedly arranged at the other end of the first frame relative to the first connecting seat, and a docking flange is rotatably arranged on the second connecting seat, the rotation axis of the docking flange is coaxial with the rotation axis of the first connecting seat relative to the mounting flange, and the docking flange has a pin hole coaxial with the rotation axis, and a second support that can slide horizontally along the body is arranged at the other end of the body relative to the direction of the first support, and a horizontal auxiliary shaft is provided on the upper side of the second support, and a pin shaft is vertically arranged at the end of the auxiliary shaft, and a second moving drive is arranged on the body to control the sliding of the first support, and the sliding of the first support can insert the pin shaft into the pin hole and make the end of the auxiliary shaft close to the docking flange.

[0019] On the basis of the above scheme and as a preferred scheme of the above scheme: the second mobile drive includes two synchronous wheels arranged along the length direction of the shaft frame, the synchronous wheels are rotatably arranged on the machine body, and a compensating feed motor is arranged on the machine body and is transmission-connected to one of the synchronous wheels to drive the synchronous wheel to rotate, an annular synchronous belt is arranged to connect the two synchronous wheels, and one side of the annular synchronous belt is rigidly connected to the second support.

[0020] On the basis of the above scheme and as a preferred scheme of the above scheme: the V-shaped support has two V-shaped support blocks arranged along the length direction of the axis frame, a support seat is arranged on the lower side of the V-shaped support, the support seat can be slidably connected to the machine body along the length direction of the axis frame, and a compensation feed drive is arranged on the machine body to control the sliding of the support seat, and telescopic push rods are respectively arranged on both sides of the support seat to control the lifting of the V-shaped support, and a first strut and a second strut are respectively arranged on both sides of the V-shaped support, one end of the first strut is hinged to the V-shaped support, and one end of the second strut is hinged to the support seat, the first strut is hingedly arranged cross-wise with the middle part of the first strut, and the other end of the second strut is slidably connected to the V-shaped support, and the other end of the first strut is slidably connected to the support seat.

[0021] On the basis of the above scheme and as a preferred scheme of the above scheme: the compensation feed drive includes a fourth screw rotatably arranged on the machine body, and a fourth servo motor is arranged on the machine body and is transmission-connected with the fourth screw, and a fourth nut is arranged on the support seat and is threadedly connected with the fourth screw.

[0022] The beneficial effects of the present invention are:

[0023] The numerically controlled axial inner circumference drilling and tapping equipment provided by the present invention is used for professional and precise processing of radial holes and radial threaded holes on the inner side wall of a cylindrical workpiece. It is also convenient to set up a control system to control the equipment of the present invention, so as to realize automated, precise and efficient processing of radial holes and radial threaded holes on the inner side wall of a cylindrical workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the numerically controlled axial inner circumference drilling and tapping equipment of the present invention;

[0025] Figure 2 It is a schematic diagram of the processing operation of the numerically controlled axial inner circumference drilling and tapping equipment of the present invention;

[0026] Figure 3 It is a schematic diagram of workpiece installation of the numerically controlled axial inner circumference drilling and tapping equipment of the present invention;

[0027] Figure 4 is a schematic structural diagram of the second support portion of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the inner axial hole processing device of the present invention;

[0029] Figure 6 It is an exploded schematic diagram of the assembly relationship between the inner circle axial hole processing device and the first support of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the inner circle axial hole processing device of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the inner circle axial hole processing device of the present invention from another perspective;

[0032] Fig. 9 This is a schematic diagram of the fourth screw rod arrangement of the present invention;

[0033] Fig.10 It is a schematic diagram of the V-shaped support structure of the present invention.

[0034] In the figure: Inner axial hole processing device-1, shaft frame-2, spindle motor-3, machine body-4, first support-5, V-shaped support-6, mounting flange-7, first connecting seat-8, first frame-9, first track-10, first mounting plate-11, second track-12, second mounting plate-13, first screw rod-14, first servo motor-15, first nut-16, second screw rod-17, second servo motor-18, third servo motor-19, second frame-20, third mounting Plate-21, the third screw rod-22, the control motor-23, the seat body-24, the support body-25, the fixing flange-26, the avoidance hole-27, the second connecting seat-28, the docking flange-29, the pin hole-30, the second support-31, the auxiliary shaft-32, the pin shaft-33, the synchronous wheel-34, the compensating feed motor-35, the annular synchronous belt-36, the V-shaped support block-37, the support seat-38, the telescopic push rod-39, the first support rod-40, the second support rod-41, the fourth screw rod-42, and the workpiece-43. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figure 1-10 , a CNC axial inner circumference drilling and tapping equipment. The threaded hole processing of ordinary workpieces can be performed by drilling or tapping using equipment such as bench drills or milling machines, such as processing threaded holes on plates. However, for processing threaded holes on the inner wall of a cylindrical workpiece, that is, processing threaded holes in the inner radial direction of the cylinder, such threaded hole processing operations are very difficult. If the inner cylinder diameter of the workpiece is usually small, people cannot enter directly, and it is inconvenient to do it manually. In addition, bench drills, milling machines or other such CNC equipment cannot operate, so the difficulty is quite high.

[0037] Especially for the outer rotor barrel of large motors, the inner diameter is only about 1 meter, or even smaller, and the length is about 1.4 meters. Several threaded holes with strict arrangement rules and position and dimensional accuracy are required in the barrel. The design accuracy is usually plus or minus 0.1 mm, and the circumferential spacing is only 6 or 12 degrees. The difficulty of processing control is very great. If the processing deviation is large and the workpiece does not meet the standard, then the production costs including milling and material preparation before that are all wasted, which brings great losses to the enterprise.

[0038] Therefore, the numerically controlled axial inner circumference drilling and tapping equipment provided by the present invention is used for professional and precise processing of radial holes and radial threaded holes on the inner side wall of cylindrical workpieces. It is also convenient to set up a control system to control the equipment of the present invention, so as to realize automated, precise and efficient processing of radial holes and radial threaded holes on the inner side wall of cylindrical workpieces.

[0039] The numerically controlled axial inner circumference drilling and tapping equipment of the present invention comprises an inner circumferential axial hole processing device 1, having a shaft frame 2, on which a spindle motor 3 which can move along the length direction of the shaft frame 2 and perpendicular to the length direction is arranged; it also comprises a base, having a body 4 for supporting, on which a first support 5 is fixedly arranged, the first support 5 is used to support and set the shaft frame 2, the shaft frame 2 is horizontally arranged on the first support 5 in the length direction, and the shaft frame 2 can rotate around the length direction of the shaft frame 2 on the first support 5; it also comprises a mounting device, having a V-shaped support 6 with an opening upward, the V-shaped support 6 is arranged on the body 4, and the V-shaped support 6 is movably or fixedly arranged directly below the shaft frame 2.

[0040] When machining radial holes in the workpiece barrel, the workpiece 43 can be placed on a V-shaped support, and the workpiece can be positioned and supported by the V-shaped support. The workpiece is sleeved on the inner circle axial hole machining device, so that the inner circle axial hole machining device is inserted into the barrel of the workpiece 43. After the tool is set on the spindle motor 3, the radial hole machining in the barrel of the workpiece can be carried out. For example, if a threaded hole is to be machined, the bottom hole can be machined with a drill on the spindle motor 3, and then the drill can be replaced with a tap for tapping. For convenience, the spindle motor 3 can be set as a double-headed electric spindle, with a drill bit set on one end and a tap set on the other end. When machining a threaded hole, the bottom hole is first machined with a drill bit, and then the shaft frame is rotated and tapped with a tap.

[0041] To facilitate positioning, the spindle motor 3 can move on the axis frame, that is, in the axial direction of the workpiece to adjust the tool position, and cooperate with the rotation of the axis frame 2 to achieve circular position positioning, and cooperate with the spindle motor 3 to move vertically to the axis frame, that is, move along the radial direction of the workpiece to control the tool feed during processing to control the drilling depth and thread depth control, or adjust the position of the spindle motor.

[0042] For convenience, after the workpiece is placed on the V-shaped support 6, the axis of the workpiece and the axis of the axis frame 2 intersect the axis of the spindle motor feed direction, so that the axis of the output shaft of the spindle motor 3 intersects perpendicularly with the axis of the rotating shaft of the axis frame 2. This is conducive to the precision control of the drilling position in the workpiece barrel. At the same time, it is ensured that the axis of the machined hole is consistent with the radial direction of the workpiece. The movable V-shaped support 6 can be used to compensate for the problem that the axial displacement of the spindle motor 3 on the axis frame 2 during processing is not enough to radiate the entire axial range of the workpiece. This can be compensated by moving the V-shaped support. At the same time, it is convenient to define the tool setting or tool starting position during fully automatic CNC processing.

[0043] Further, the shaft frame 2 includes a mounting flange 7 for fixedly connecting the first support 5, a first connecting seat 8 is rotatably arranged on the mounting flange 7, a first frame body 9 is vertically fixedly arranged on the first connecting seat 8, a first rail 10 arranged along the length direction is arranged on the first frame body 9, a first mounting plate 11 is provided on the first rail 10 and is slidably connected thereto through a first slider, a second slider is fixedly provided on the first mounting plate 11, a second rail 12 slidably matched thereto is provided on the second slider, the second rail 12 is perpendicular to the first rail 10 and a second mounting plate 13 is fixedly provided on the second rail 12, the spindle motor 3 is arranged on the second mounting plate 13, and the output shaft of the spindle motor 3 is parallel to the second rail 12, a first feed drive is provided on the first frame body 9 to control the first mounting plate 11 to slide along the first rail 10, a second feed drive is provided on the first mounting plate 11 to control the second mounting plate 13 to slide relative to the first mounting plate 11, and a third feed drive is provided on the mounting flange 7 to control the first connecting seat 8 to rotate relative to the mounting flange 7. Further, the first feed drive includes a first screw rod 14 rotatably arranged on the first frame 9, a first servo motor 15 is arranged on the first frame 9 and is transmission-connected to the first screw rod 14, and a first nut 16 is arranged on the first mounting plate 11 and is threadedly connected to the first screw rod 14; the second feed drive includes a rotatable second screw rod 17 arranged on the first mounting plate 11, a second nut is arranged on the second mounting plate 13 and is threadedly connected to the second screw rod 17, and a second servo motor 18 is arranged on the first mounting plate 11 and is transmission-connected to the second screw rod 17; the third feed drive includes a third servo motor 19 fixedly arranged on the mounting flange 7, and the output shaft of the third servo motor 19 is transmission-connected to the first connecting seat 8 coaxially with the rotating shaft of the first connecting seat 8.

[0044] The movement control through the screw rod and the nut has high precision and has the effect of a reducer. There is no need to worry about the moving impulse of a movable device during the movement process affecting the processing precision control.

[0045] Furthermore, a second frame 20 fixedly connected to the first connecting seat 8 is provided on the opposite side of the first frame 9, a third mounting plate 21 which can slide parallel to the first track 10 is provided on the second frame 20, and a first moving drive is provided on the second frame 20 to control the sliding of the third mounting plate 21. The first moving drive includes a third screw rod 22 rotatably provided on the second frame 20, a control motor 23 is provided on the second frame 20 to be transmission-connected with the third screw rod 22, and a third nut is provided on the third mounting plate 21 to be threadedly connected with the third screw rod 22. The third mounting plate 21 can be used to install and set devices such as an air blowing pipe or a coolant delivery pipe according to the needs of use to blow away the debris at the processing position or deliver coolant to the tool position. For the convenience of control, the control motor 23 is a servo motor or a stepping motor.

[0046] In the above scheme, the precision of movement control through the screw rod and the nut is high, and it has the effect of a reducer. There is no need to worry about the moving impulse of each movable device during the movement affecting the processing precision control, and it also has the effect of saving space. After all, the space inside the workpiece barrel is small and the setting position is tight. If the design of each actuator is too large, it is easy to cause it during use, thereby narrowing the scope of application.

[0047] Furthermore, the first support 5 includes a seat body 24 fixedly connected to the machine body 4, a horizontal support body 25 is arranged on the seat body 24, the support body 25 is in a hollow tube shape, the end of the support body 25 far from the seat body 24 has a fixing flange 26, the middle of the fixing flange 26 has an avoidance hole 27, and the mounting flange 7 is fixed to the fixing flange 26 by screw connection. Thus, a compact equipment structure is designed, which is convenient for expanding the processing adaptability range of workpiece specifications.

[0048] Furthermore, a second connecting seat 28 is fixedly provided at the other end of the first frame 9 relative to the first connecting seat 8, and a docking flange 29 is rotatably provided on the second connecting seat 28. The rotation axis of the docking flange 29 is coaxial with the rotation axis of the first connecting seat 8 relative to the mounting flange 7, and the docking flange 29 has a pin hole 30 coaxial with the rotation axis. A second support 31 that can slide horizontally along the body 4 is provided at the other end of the body 4 relative to the first support 5. A horizontal auxiliary shaft 32 is provided on the upper side of the second support 31, and a pin shaft 33 is vertically provided at the end of the auxiliary shaft 32. A second moving drive is provided on the body 4 to control the sliding of the first support 5. The sliding of the first support 5 can cause the pin shaft 33 to be inserted into the pin hole 30 and cause the end of the auxiliary shaft 32 to be close to the docking flange 29.

[0049] The rear end of the shaft frame is supported by the second connecting seat 28 to ensure the stability of the processing operation, so as to avoid problems such as inaccurate processing positioning caused by the shaking of the shaft frame during processing, or even broken tools due to shaking. Figure 3After the second support 31 moves back to leave the shaft frame, it is convenient to pick up and place the workpiece. Figure 2 The front end of the pin 33 has a chamfered structure, which facilitates the pin to be accurately inserted into the pin hole when it is close to the docking flange for positioning support, thereby achieving a stable effect of precise support.

[0050] Furthermore, to facilitate the sliding control of the second connecting seat 28, the second mobile drive includes two synchronous wheels 34 arranged along the length direction of the shaft frame 2, the synchronous wheels 34 are rotatably set on the machine body 4, and a compensation feed motor 35 is set on the machine body 4 and is transmission-connected to one of the synchronous wheels 34 to drive the synchronous wheel 34 to rotate, and an annular synchronous belt 36 is set to connect the two synchronous wheels 34, and one side of the annular synchronous belt 36 is rigidly connected to the second support 31.

[0051] Furthermore, the V-shaped support 6 has two V-shaped support blocks 37 arranged along the length direction of the shaft frame 2, and a support seat 38 is arranged on the lower side of the V-shaped support 6. The support seat 38 can be slidably connected to the machine body 4 along the length direction of the shaft frame 2, and a compensation feed drive is arranged on the machine body 4 to control the sliding of the support seat 38, and telescopic push rods 39 are respectively arranged on both sides of the support seat 38 to control the lifting of the V-shaped support 6, and a first strut 40 and a second strut 41 are respectively arranged on both sides of the V-shaped support 6, one end of the first strut 40 is hinged on the V-shaped support 6, and one end of the second strut 41 is hinged on the support seat 38, the first strut 40 and the middle part of the first strut 40 are hingedly arranged crosswise, and the other end of the second strut 41 is slidably connected to the V-shaped support 6, and the other end of the first strut 40 is slidably connected to the support seat 38.

[0052] The support of the workpiece by the V-shaped support block 37 facilitates the automatic centering of the workpiece, and then the axis position of the workpiece is adjusted to coincide with the axis position of the spindle motor by lifting and lowering the telescopic push rod 39, so as to facilitate the processing operation, thereby making the device more suitable for processing workpieces of different lengths or shaft diameters, and is particularly suitable for processing threaded holes on the inner side of the outer rotor barrel of large motors of various specifications, wherein the telescopic push rod 39 can be a servo push rod. The mutual cooperation of the first support rod 40 and the second support rod 41 makes the lifting and lowering of the V-shaped support 6 relative to the support seat 38 balanced and stable, and will not cause torsion or position deflection, ensuring the control accuracy.

[0053] Furthermore, in order to ensure the sliding position accuracy of the V-shaped support 6, the compensating feed drive includes a fourth screw rod 42 rotatably arranged on the machine body 4, and a fourth servo motor is arranged on the machine body 4 to be transmission-connected with the fourth screw rod 42, and a fourth nut is arranged on the support seat 38 to be threadedly connected with the fourth screw rod 42.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A numerically controlled axial internal circumference drilling and tapping device, characterized in that: The invention comprises an inner circle axial hole processing device (1), which has a shaft frame (2), and a spindle motor (3) which can move along the length direction of the shaft frame (2) and perpendicular to the length direction is arranged on the shaft frame (2); The invention comprises a base, a body (4) for supporting, a first support (5) being fixedly arranged on the body (4), the first support (5) being used to support and arrange an axis frame (2), the axis frame (2) being arranged horizontally on the first support (5) in the length direction, and the axis frame (2) being able to rotate on the first support (5) around the length direction of the axis frame (2); It comprises a component mounting device having a V-shaped support (6) with an opening facing upward, the V-shaped support (6) being arranged on a machine body (4), and the V-shaped support (6) being movably or fixedly arranged directly below a shaft frame (2); The shaft frame (2) comprises a mounting flange (7) for fixedly connecting to a first support (5); a first connecting seat (8) is rotatably arranged on the mounting flange (7); a first frame body (9) is vertically fixedly arranged on the first connecting seat (8); a first track (10) arranged along the length direction is arranged on the first frame body (9); a first mounting plate (11) slidably connected to the first track (10) via a first slider is arranged on the first track (10); a second slider is fixedly arranged on the first mounting plate (11); a second track (12) slidably matched with the second slider is arranged on the second slider; the second track (12) is perpendicular to the first track ( 10) and a second mounting plate (13) is fixedly arranged on the second track (12), the spindle motor (3) is arranged on the second mounting plate (13), and the output shaft of the spindle motor (3) is parallel to the second track (12), the first frame (9) is provided with a first feed drive to control the first mounting plate (11) to slide along the first track (10), the first mounting plate (11) is provided with a second feed drive to control the second mounting plate (13) to slide relative to the first mounting plate (11), and the mounting flange (7) is provided with a third feed drive to control the first connecting seat (8) to rotate relative to the mounting flange (7); The V-shaped support (6) has two V-shaped support blocks (37) arranged along the length direction of the shaft frame (2), and a support seat (38) is arranged on the lower side of the V-shaped support (6). The support seat (38) can be slidably connected to the machine body (4) along the length direction of the shaft frame (2), and a compensation feed drive is arranged on the machine body (4) to control the sliding of the support seat (38), and telescopic push rods (39) are respectively arranged on both sides of the support seat (38) to control the lifting and lowering of the V-shaped support (6). A first support rod (40) and a second support rod (41) are respectively arranged on both sides of the support (6), one end of the first support rod (40) is hinged on the V-shaped support (6), and one end of the second support rod (41) is hinged on the support seat (38), the first support rod (40) and the middle part of the first support rod (40) are hingedly arranged crosswise, and the other end of the second support rod (41) is slidably connected to the V-shaped support (6), and the other end of the first support rod (40) is slidably connected to the support seat (38).

2. A numerically controlled axial internal circumference drilling and tapping device according to claim 1, characterized in that: The spindle motor (3) is a double-headed electric spindle.

3. The CNC axial internal circumference drilling and tapping equipment according to claim 1, characterized in that: The first feed drive comprises a first screw (14) rotatably arranged on the first frame (9), a first servo motor (15) is arranged on the first frame (9) and is transmission-connected to the first screw (14), and a first nut (16) is arranged on the first mounting plate (11) and is thread-matchedly connected to the first screw (14); the second feed drive comprises a second screw (17) rotatably arranged on the first mounting plate (11), a second nut is arranged on the second mounting plate (13) and is thread-matchedly connected to the second screw (17), and a second servo motor (18) is arranged on the first mounting plate (11) and is transmission-connected to the second screw (17); the third feed drive comprises a third servo motor (19) fixedly arranged on the mounting flange (7), and the output shaft of the third servo motor (19) is transmission-connected to the first connecting seat (8) coaxially with the rotating shaft of the first connecting seat (8).

4. The CNC axial internal circumference drilling and tapping equipment according to claim 1, characterized in that: A second frame (20) fixedly connected to the first connecting seat (8) is arranged on the opposite side of the first frame (9); a third mounting plate (21) which can slide parallel to the first track (10) is arranged on the second frame (20); and a first moving drive is arranged on the second frame (20) to control the sliding of the third mounting plate (21).

5. A numerically controlled axial internal circumference drilling and tapping device according to claim 4, characterized in that: The first moving drive comprises a third screw rod (22) rotatably arranged on the second frame (20), a control motor (23) is arranged on the second frame (20) and is transmission-connected to the third screw rod (22), and a third nut is arranged on the third mounting plate (21) and is threadedly connected to the third screw rod (22).

6. The CNC axial internal circumference drilling and tapping equipment according to claim 1, characterized in that: The axis of the output shaft of the spindle motor (3) intersects perpendicularly with the axis of the rotating shaft of the shaft frame (2).

7. The CNC axial internal circumference drilling and tapping equipment according to claim 1, characterized in that: The first support (5) comprises a seat body (24) fixedly connected to the machine body (4), a horizontal support body (25) is arranged on the seat body (24), the support body (25) is in the shape of a hollow tube, the end of the support body (25) far from the seat body (24) has a fixed flange (26), the middle of the fixed flange (26) has an avoidance hole (27), and the mounting flange (7) is fixed to the fixed flange (26) by screw connection.

8. The CNC axial internal circumference drilling and tapping device according to claim 1, characterized in that: A second connecting seat (28) is fixedly arranged at the other end of the first frame (9) relative to the first connecting seat (8); a docking flange (29) is rotatably arranged on the second connecting seat (28); the rotation axis of the docking flange (29) is coaxial with the rotation axis of the first connecting seat (8) relative to the mounting flange (7); the docking flange (29) has a pin hole (30) coaxial with the rotation axis; a second support (31) which can slide horizontally along the machine body (4) is arranged at the other end of the machine body (4) relative to the first support (5); a horizontal auxiliary shaft (32) is arranged on the upper side of the second support (31); a pin shaft (33) is vertically arranged at the end of the auxiliary shaft (32); a second moving drive is arranged on the machine body (4) to control the sliding of the first support (5); the sliding of the first support (5) can make the pin shaft (33) insert into the pin hole (30) and make the end of the auxiliary shaft (32) close to the docking flange (29).

Images