Multifunctional self-propelled boring machine for machining taper hole, plane and sealing groove of rudder blade

Abstract

The utility model discloses a multifunctional self-propelled boring machine for processing a taper hole, a plane and a sealing groove of a rudder blade, which comprises a main processing shaft, two ends of which are detachably and rotatably connected on a mounting seat structure; the tool rest device is arranged on the main machining shaft, is driven by the main machining shaft to rotate around the shaft, and is controlled by the axial feeding device and the radial feeding device to change the position of a tool at the machining end; the comprehensive control oil way controls hydraulic oil to enter the main shaft rotation driving device, the axial feeding device and the radial feeding device, and the hydraulic oil drives all the devices to operate. The utility model provides a multifunctional portable device capable of machining large rudder blade taper holes, planes, sealing grooves and the like of ships, various machining functions of the rudder blade taper holes, the planes, the sealing grooves and the like can be achieved without replacing a tool rest device and only replacing different tools, inner hole curves can be machined according to needs, the working efficiency is improved, and the machining cost is reduced. And the reliability and the safety are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of ship processing equipment, and particularly relates to a multifunctional self-propelled boring bar for processing the conical hole, plane and sealing groove of a rudder blade. Background Art

[0002] A boring bar is a tool for precision hole machining, mainly used for hole machining on large mechanical equipment, and is used more in the process of shipbuilding, such as the boring operation of a rudder blade. A boring bar usually consists of a long rod and a tool clamping device located at both ends or one side, and these tools are used for boring holes.

[0003] For example, in the prior art, the application number CN201110394226.0 includes a detachable hoop, a boring bar, a tool holder, a guide rail, a lead screw, a feed gear and a transmission mechanism. The detachable hoops are locked on the boring bar at a certain interval, the detachable hoops are installed with the guide rail at a certain inclination angle, a lead screw is installed in the guide rail, a tool holder is installed on the lead screw and is located in the groove of the guide rail, a feed gear is installed on the right side of the lead screw, and the feed gear is matched with the transmission mechanism. The transmission mechanism is entirely sleeved on the outer circular surface of the boring bar. The transmission mechanism includes a front positioning sleeve, a movable gear, a positioning gear, a cylinder sleeve holder, a rear positioning sleeve, a double-connected gear and a bolt; the front positioning sleeve and the movable gear, and the rear positioning sleeve and the cylinder sleeve holder are all movably matched; the bolt is provided with a through hole; the guide rail is of a rectangular frame structure; the tool holder is integrally in a "T" shape and is matched with the rectangular guide rail. This device uses the rotation of the lead screw to change the position of the tool holder to bore the rudder blade. However, due to the structural limitation of its lead screw, it can only machine the conical hole of the rudder blade and does not have other machining functions, and the use function is relatively single.

[0004] In fact, the processing steps for the rudder blade are not limited to the conical hole part, but also include the two end faces of the conical hole, the ring groove stop, the sealing groove and other structures that need to be processed. In the traditional processing method, after using the above equipment to complete the conical hole processing, the rudder blade needs to be transferred to a special boring machine to process the remaining structures. This leads to cumbersome processing steps, requires multiple workpiece transfers, and requires repeated positioning and fixing, which not only affects the machining accuracy, but also greatly increases the machining cycle of the rudder blade. Usually, an ordinary rudder blade takes 5-10 days to be processed.

[0005] In view of the above, it is necessary to propose a multifunctional self-propelled boring bar for processing the conical hole, plane and sealing groove of a rudder blade to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the defects existing in the prior art and provide a multifunctional self-propelled boring bar for processing the conical hole, plane and sealing groove of a rudder blade.

[0007] To achieve the above object, the technical solution of the present utility model is as follows: A multifunctional self-propelled boring row for machining the conical hole, plane, and sealing groove of a rudder blade, including a main machining shaft, the two ends of which are detachably and rotatably connected to the mounting seat structure;

[0008] A main shaft rotation driving device, which drives the main shaft to rotate;

[0009] A tool rest device, which is placed on the main machining shaft and is driven by the main machining shaft to rotate around the axis, and the position of the cutting tool at the machining end is changed under the control of the axial feed device and the radial feed device;

[0010] An integrated control oil circuit, which controls the hydraulic oil to enter the main shaft rotation driving device, the axial feed device, and the radial feed device, and drives each device to operate with the hydraulic oil;

[0011] A rotation control system. Detection devices for detecting the rotation direction and speed are provided on the main shaft rotation driving device, the axial feed device, and the radial feed device, and the detection devices are electrically connected to the control system.

[0012] Further, the main shaft rotation driving device includes a main shaft hydraulic motor, a reducer, and a small sprocket. The output end of the main shaft hydraulic motor is connected to the reducer, and a small sprocket is provided at the output end of the reducer; a large sprocket is provided on the main machining shaft, and a transmission chain is sleeved on the small sprocket and the large sprocket.

[0013] Further, a long strip-shaped through hole is axially provided on the main machining shaft. The axial feed device includes a first lead screw nut transmission pair and a first hydraulic motor. The first lead screw nut transmission pair includes a first lead screw rotatably arranged in the through hole and a first nut arranged on the first lead screw, and the first lead screw is driven to rotate by the first hydraulic motor.

[0014] Further, the tool rest device includes a sliding sleeve part, a tool rest seat, and a movable tool rest. The sliding sleeve part is slidably connected and sleeved on the main machining shaft. The first nut is connected to the sliding sleeve part. A tool rest seat is provided on the sliding sleeve part, a movable tool rest is provided on the tool rest seat, and a turning tool is provided on the movable tool rest.

[0015] Further, the radial feed device includes a radial guide rail arranged along a direction perpendicular to the axis of the main machining shaft. The radial guide rail is arranged on the tool rest seat, and also includes a second lead screw nut transmission pair and a second hydraulic motor. The second lead screw nut transmission pair includes a second lead screw and a second nut. The second lead screw is rotatably arranged on the tool rest seat, a second nut is arranged on the second lead screw, the movable tool rest is connected to the second nut and the movable tool rest is slidably arranged on the radial guide rail, and the second hydraulic motor is arranged on the tool rest seat and its output end drives the second lead screw to rotate.

[0016] Further, one end of the main processing shaft is provided with a rotary slip ring. The rotary slip ring is provided with an oil inlet hole at one end extending out of the main processing shaft, and an oil outlet hole communicating with the through hole inside the main processing shaft. The oil outlet hole is connected to the oil port of the second hydraulic motor.

[0017] Further, the comprehensive control oil circuit includes a proportional control valve group and hydraulic oil pipes. The proportional control valve group is provided with a fuel supply inlet and outlet connected to the hydraulic pump station. The proportional control valve group is also provided with control oil ports respectively connected to the main shaft rotary drive device, the axial feed device, and the radial feed device, and is connected to each device through the hydraulic oil pipes.

[0018] Further, the detection device is an encoder, and the rotation of each device is monitored through the encoder.

[0019] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a multifunctional portable device for machining large ship rudder blade taper holes, planes, sealing grooves, etc. It can achieve multiple machining functions such as rudder blade taper holes, planes, and sealing grooves without replacing the tool rest device, only by replacing different tools. It can also machine internal hole curves as needed, improving work efficiency and enhancing reliability and safety. Description of the Drawings

[0020] Figure 1 is one of the isometric views of a multifunctional self-propelled boring row for machining rudder blade taper holes, planes, and sealing grooves of the present utility model;

[0021] Figure 2 is the second isometric view of a multifunctional self-propelled boring row for machining rudder blade taper holes, planes, and sealing grooves of the present utility model;

[0022] Figure 3 is the exploded view of a multifunctional self-propelled boring row for machining rudder blade taper holes, planes, and sealing grooves of the present utility model;

[0023] Figure 4 is the top view of a multifunctional self-propelled boring row for machining rudder blade taper holes, planes, and sealing grooves of the present utility model;

[0024] Figure 5 is the side view of a multifunctional self-propelled boring row for machining rudder blade taper holes, planes, and sealing grooves of the present utility model;

[0025] Figure 6 is the front view and side view of the tool rest device in the present utility model;

[0026] Figure 7 is the schematic diagram of the rotary slip ring end of the main processing shaft in the present utility model;

[0027] Figure 8 is the top view of the main shaft rotary drive device in the present utility model;

[0028] In the figure: 1. Main processing shaft; 2. Mounting seat structure; 3. Main shaft rotation drive device; 4. Tool rest device; 5. Axial feed device; 6. Radial feed device; 7. Main shaft hydraulic motor; 8. Reducer; 9. Small sprocket; 10. Transmission chain; 11. Large sprocket; 12. Through hole; 13. First hydraulic motor; 14. First lead screw; 15. First nut; 16. Sliding sleeve part; 17. Tool rest seat; 18. Moving tool rest; 19. Radial guide rail; 20. Second hydraulic motor; 21. Second lead screw; 22. Second nut; 23. Rotary slip ring; 24. Oil inlet hole; 25. Proportional control valve group; 26. Oil supply inlet and outlet; 27. Control oil port. Specific embodiments

[0029] The following combines the drawings and embodiments to further describe the specific embodiments of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0030] A multifunctional self-propelled boring row for machining the conical hole, plane, and sealing groove of a rudder blade, as Figure 1-8 shown, includes a main processing shaft 1, the two ends of which are detachably and rotatably connected to the mounting seat structure 2; as Figure 1-3 shown in the schematic diagram, a self-lubricating sliding bearing is sleeved on one end of the main processing shaft 1. The main processing shaft 1 can rotate freely on the mounting seat structure 2. An axial feed device 5 is provided on one end of the mounting seat structure 2 and is connected to the bearing seat by bolts. A self-lubricating sliding bearing is installed in the bearing seat, thereby realizing the detachable connection of the main processing shaft 1. During use, it is convenient to pass the shaft hole of the rudder blade to be processed through the main processing shaft 1 and perform the processing of the conical hole. The main processing shaft 1 is designed to be hollow, and an axial feed device 5 for driving is installed in the hole, namely the first lead screw 14.

[0031] The main processing shaft 1 is driven to rotate by the main shaft rotation drive device 3; specifically, as Figure 1-3As shown, the main shaft rotary drive device 3 includes a main shaft hydraulic motor 7, a speed reducer 8, and a small sprocket 9. The output end of the main shaft hydraulic motor 7 is connected to the speed reducer 8, and the output end of the speed reducer 8 is provided with a small sprocket 9. A large sprocket 11 is provided on the main processing shaft 1, and a transmission chain 10 is sleeved on the small sprocket 9 and the large sprocket. The main shaft rotary drive device 3 is connected to the bracket by bolts after the main shaft hydraulic motor 7 and the speed reducer 8 are connected by a spline. The output shaft of the speed reducer 8 is connected to the small sprocket 9 by a key. The small sprocket 9 drives the large sprocket to rotate through the transmission chain 10. The large sprocket is arranged on the main processing shaft 1 and is connected to the main processing shaft 1 by a flat key. The rotation of the main processing shaft 1 drives the tool rest device 4 to rotate to machine the workpiece. When the tool rest device 4 rotates, it is placed on the main processing shaft 1 and is driven by the main processing shaft 1 to rotate around the axis, and the position of the cutting tool at the processing end is changed under the control of the axial feed device 5 and the radial feed device 6; thus, the machining of various functions such as the tapered hole, plane, and sealing groove of the rudder blade workpiece is realized.

[0032] Further, a long strip-shaped through hole 12 is axially provided on the main processing shaft 1, as Figure 3 、 4 shown. The axial feed device 5 includes a first lead screw 14-nut transmission pair and a first hydraulic motor 13. The first lead screw 14-nut transmission pair includes a first lead screw 14 rotatably arranged in the through hole 12 and a first nut 15 arranged on the first lead screw 14. The first lead screw 14 is driven to rotate by the first hydraulic motor 13. The first hydraulic motor 13 is installed on the mounting seat structure 2 at one end and drives the first lead screw 14 to rotate through it, so as to control the axial movement of the tool rest device 4.

[0033] In the present utility model, there is a set of independent axial feed device 5. The axial feed device 5 drives the first lead screw 14 in the main processing shaft 1 to rotate through the speed reducer 8 by the first hydraulic motor 13. The rotation of the first lead screw 14 drives the first nut 15 to generate an axial movement in the axial direction. The nut is connected in the sliding sleeve portion 16, thereby driving the tool rest device 4 to generate an axial movement; thus, the axial feed of the device is realized.

[0034] Specifically, the tool rest device 4 includes a sliding sleeve portion 16, a tool rest seat 17, and a movable tool rest 18, as Figure 1 、 6As shown, the sliding sleeve part 16 is slidably connected and sleeved on the main processing shaft 1. In some embodiments, the sliding sleeve part 16 can be designed as a detachable structure. As shown in the figure, the sliding sleeve part 16 is divided into a semi-circular tile structure that can be opened in half, and the two ends are connected and locked by bolts to form a ring. This detachable structure facilitates the repair or replacement of parts. The first nut 15 is connected to the sliding sleeve part 16. Thus, when the first nut 15 is driven by the first lead screw 14 to move, the tool rest device 4 can be driven to move. A tool rest base 17 is provided on the sliding sleeve part 16, and a movable tool rest 18 is provided on the tool rest base 17. A turning tool is provided on the movable tool rest 18. The movable tool rest 18 is designed to be slidably connected to the tool rest base 17, so as to facilitate changing the position of the movable tool rest 18.

[0035] As Figure 3 , 6 , as shown in FIGS. 7, the radial feed device 6 includes a radial guide rail 19 arranged in a direction perpendicular to the axis of the main processing shaft 1. The radial guide rail 19 is arranged on the tool rest base 17, and also includes a second lead screw 21-nut transmission pair and a second hydraulic motor 20. The second lead screw 21-nut transmission pair includes a second lead screw 21 and a second nut 22. The second lead screw 21 is rotatably arranged on the tool rest base 17, and the second nut 22 is arranged on the second lead screw 21. The movable tool rest 18 is connected to the second nut 22 and the movable tool rest 18 is slidably arranged on the radial guide rail 19. The second hydraulic motor 20 is arranged on the tool rest base 17 and its output end drives the second lead screw 21 to rotate. In some embodiments, as Figure 1 , 2 shown, the second hydraulic motor 20 is installed at one end close to the sliding sleeve part. The tool on the movable tool rest 18 extends radially towards the far end, which can facilitate the machining of structures such as tapered holes and sealing grooves on the workpiece. In other embodiments, as Figure 5 , 6 shown, the tool direction on the movable tool rest 18 can extend transversely along the spindle direction, so as to facilitate the machining of planes, sealing grooves, etc. at the hole ends of the rudder blade.

[0036] Specifically, in actual use, the movable tool rest 18 is controlled to move radially, so as to realize the radial feed of the turning tool. Specifically, a second hydraulic motor 20 is provided on the tool rest device 4, and the second hydraulic motor 20 drives the second lead screw 21 to rotate through its speed reducer 8. The rotation of the second lead screw 21 drives the second nut 22 to move linearly, thereby driving the movable tool rest 18 fixed on the nut to realize the radial feed of the tool on the radial guide rail 19. In use, the radial feed can machine structures such as ring groove stop mouths and sealing grooves.

[0037] It also includes a comprehensive control oil circuit which controls the hydraulic oil to enter the main shaft rotary drive device 3, the axial feed device 5, and the radial feed device 6, and drives the operation of each device with the hydraulic oil. Specifically, the comprehensive control oil circuit includes a proportional control valve group 25 and hydraulic oil pipes. The proportional control valve group 25 is provided with a fuel supply inlet and outlet 26 connected to the hydraulic pump station, specifically the P port and the T port for fuel supply and oil return. The proportional control valve group 25 is also provided with control oil ports 27 respectively connected to the main shaft rotary drive device 3, the axial feed device 5, and the radial feed device 6, and is connected to each device through hydraulic oil pipes. Specifically, as Figure 8 shown, the proportional control valve group 25 is provided with three pairs of valves for fuel supply and oil return, including A1 port, B1 port, A2 port, B2 port, and A3 port, B3 port. Among them, the A port is the fuel supply port and the B port is the oil return port. The main shaft hydraulic motor 7 is also provided with A1 and B1 ports. When connecting, the A1 port and B1 port of the proportional control valve group 25 are correspondingly connected to the A1 and B1 ports of the main shaft hydraulic motor 7 to form the fuel supply to the main shaft hydraulic motor 7. Similarly, the first hydraulic motor 13 is provided with A3 and B3 ports, and the A3 port and B3 port of the proportional control valve group 25 are correspondingly connected to the A3 and B3 ports of the first hydraulic motor 13. The connection of the second hydraulic motor 20 of the radial feed device 6 is different. Specifically, a rotary slip ring 23 is provided at one end of the main processing shaft 1, and the A2 and B2 ports are connected to the A2 and B2 ports of the proportional control valve group 25 through the rotary slip ring 23 as an intermediary. As Figure 3 , 7 shown, specifically, a rotary slip ring 23 is provided at one end of the main processing shaft 1. The rotary slip ring 23 is provided with oil inlet holes 24 at the end extending out of the main processing shaft 1, specifically the A21 and B21 ports, and the rotary slip ring 23 is provided with oil outlet holes communicating with the through hole 12 inside the main processing shaft 1, specifically the A22 and B22 ports. The oil outlet holes are connected to the oil ports of the second hydraulic motor 20. When connecting, the A2 port and B2 port on the proportional control valve group 25 are first correspondingly connected to the A21 and B21 ports, and then connected to the A2 and B2 ports on the second hydraulic motor 20 through the A22 and B22 ports, so as to realize the oil circuit connection and control with the second hydraulic motor 20 during the rotation of the main processing shaft 1. The connection pipes between the A22 and B22 ports and the A2 and B2 ports on the second hydraulic motor 20 are connected by hoses, so as to adapt to the axial movement position of the tool rest device 4.

[0038] It further includes a rotation control system. Detection devices for detecting the rotation direction and speed are provided on the main shaft rotary drive device 3, the axial feed device 5, and the radial feed device 6, which are used to detect the movement speeds or displacements in three directions. The detection devices are electrically connected to the control system and feedback signals to the PLC of the electric control system to monitor the feed amounts in each direction in real time, so as to control the rotation directions and speeds of each mechanism, and thus realize the shape to be machined. The detection device is an encoder, and the rotation of each device is monitored through the encoder.

[0039] This device includes three sets of independently driven hydraulic motor drive devices, an independent longitudinal feed device, an independent radial feed device, a main shaft, a main shaft drive rotary device, two sets of lead screw nut pairs, two independently installed seat structures, a hydraulic rotary slip ring, a sliding shaft sleeve, a sensor device, pressure oil ports A1, B1; pressure oil ports A2, B2; pressure oil ports A3, B3; at the same time, through the optimized design of modularization and lightweight, the weight and volume of the product are reduced, achieving the lightweight effect and making the installation and use more convenient. Through the automatic control operation of the drive device, the machining of large rudder blade taper holes, planes, and sealing grooves can be realized.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves, characterized in that: It comprises a main processing shaft (1), both ends of which are detachably rotatably connected to a mounting seat structure (2); A spindle rotation drive device (3) which drives the spindle to rotate; A tool holder device (4) is placed on the main processing axis (1) and is driven by the main processing axis (1) to rotate around the axis, and is controlled by the axial feeding device (5) and the radial feeding device (6) to change the position of the tool at the processing end; An integrated control oil circuit controls the hydraulic oil to enter the spindle rotation drive device (3), the axial feed device (5), and the radial feed device (6), so as to drive each device to operate with the hydraulic oil; The rotation control system, the spindle rotation drive device (3), the axial feed device (5), and the radial feed device (6) are all provided with detection devices for detecting the rotation direction and speed, and the detection devices are electrically connected to the control system.

2. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 1, characterized in that: The spindle rotation drive device (3) comprises a spindle hydraulic motor (7), a reducer (8), and a small sprocket (9); the output end of the spindle hydraulic motor (7) is connected to the reducer (8), and the output end of the reducer (8) is provided with a small sprocket (9); the main processing shaft (1) is provided with a large sprocket (11), and the small sprocket (9) and the large sprocket are sleeved with a transmission chain (10).

3. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 2, characterized in that: The main processing shaft (1) is provided with an elongated through hole (12) along the axial direction. The axial feeding device (5) comprises a first screw rod (14) and a nut transmission pair and a first hydraulic motor (13). The first screw rod (14) and the nut transmission pair comprise a first screw rod (14) rotatably arranged in the through hole (12) and a first nut (15) arranged on the first screw rod (14). The first screw rod (14) is driven to rotate by the first hydraulic motor (13).

4. The multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 3 is characterized in that: The tool holder device (4) comprises a sliding sleeve (16), a tool holder seat (17), and a movable tool holder (18); the sliding sleeve (16) is slidably connected and sleeved on the main processing shaft (1); the first nut (15) is connected to the sliding sleeve (16); the sliding sleeve (16) is provided with a tool holder seat (17); the tool holder seat (17) is provided with a movable tool holder (18); and the movable tool holder (18) is provided with a turning tool.

5. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 4, characterized in that: The radial feeding device (6) comprises a radial guide rail (19) arranged along a direction perpendicular to the axis of the main processing axis (1), the radial guide rail (19) being arranged on the tool holder seat (17), and further comprising a second screw rod (21) nut transmission pair and a second hydraulic motor (20), the second screw rod (21) nut transmission pair comprising a second screw rod (21) and a second nut (22), the second screw rod (21) being rotatably arranged on the tool holder seat (17), the second nut (22) being arranged on the second screw rod (21), the movable tool holder (18) being connected to the second nut (22) and the movable tool holder (18) being slidably arranged on the radial guide rail (19), the second hydraulic motor (20) being arranged on the tool holder seat (17) and its output end driving the second screw rod (21) to rotate.

6. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 5, characterized in that: A rotary slip ring (23) is provided at one end of the main processing shaft (1), and an oil inlet hole (24) is provided at the end of the rotary slip ring (23) extending out of the main processing shaft (1). The rotary slip ring (23) is also provided with an oil outlet hole connected to the through hole (12) inside the main processing shaft (1), and the oil outlet hole is connected to the oil port of the second hydraulic motor (20).

7. A multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 6, characterized in that: The integrated control oil circuit comprises a proportional control valve group (25) and a hydraulic oil pipe. The proportional control valve group (25) is provided with an oil supply inlet and outlet (26) connected to the hydraulic pump station. The proportional control valve group (25) is also provided with a control oil port (27) respectively connected to the spindle rotation drive device (3), the axial feed device (5), and the radial feed device (6), and is connected to each device through a hydraulic oil pipe.

8. The multifunctional self-propelled boring machine for machining rudder blade tapered holes, planes and sealing grooves according to claim 1, characterized in that: The detection device is an encoder, and the rotation of each device is monitored by the encoder.

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