CN110722371A - Numerical control machining positioning mounting fixture for marine propeller - Google Patents
Numerical control machining positioning mounting fixture for marine propeller Download PDFInfo
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- CN110722371A CN110722371A CN201910966634.5A CN201910966634A CN110722371A CN 110722371 A CN110722371 A CN 110722371A CN 201910966634 A CN201910966634 A CN 201910966634A CN 110722371 A CN110722371 A CN 110722371A
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- propeller
- mandrel
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- numerical control
- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The utility model provides a marine screw numerical control machining location sectional fixture, including the lathe workstation, hydraulic pressure elevating gear, quick positioner, prevent the device that moves, drive arrangement and the supplementary tool setting device of laser, the pit that is used for placing the screw of waiting to process is offered to lathe workstation middle part, quick positioner sets up in the pit both sides, hydraulic pressure elevating gear is arranged respectively on the pit both sides, quick positioner is arranged respectively in the two hydraulic pressure elevating gear outsides, pit one side is arranged and is prevented that the device moves and in the quick positioner outside, the pit opposite side is arranged drive arrangement and in the quick positioner outside, arrange that the supplementary tool setting device of laser is arranged simultaneously in one side of preventing the device that moves, the supplementary tool setting device of laser is arranged and is being close to the paddle position. The invention enables the propeller to quickly realize radial positioning through the two central shaft roller structures, solves the problem that the propeller is difficult to position on a machine tool machining platform, and simultaneously provides a method for quickly setting the marine propeller.
Description
Technical Field
The invention relates to the technical field of clamps for machining marine propellers, in particular to a numerical control machining, positioning and mounting clamp for the marine propellers.
Background
The marine propeller is a core component of a marine vehicle, the manufacturing precision and the surface quality of the propeller directly influence the efficiency, the service life, the operation stability and the manufacturing cost of a ship propulsion system, the processed high-quality propeller plays an important role in the development of the ship industry, and before a special machine tool for processing the propeller performs numerical control processing on a propeller hub and a blade root of the propeller, the propeller needs to be installed on a machine tool workbench and positioned and clamped.
The Chinese patent ' anchor clamps for processing unmanned ship propellers ' (patent publication number: CN 209239547U) ' aims at that special anchor clamps are needed to be used in the fine processing process of the unmanned ship propellers to fix the unmanned ship propellers, and provides a vertical anchor clamps which adopt a convex block to match a clamping groove in the central hole of the propeller with the convex block, but the anchor clamps can only process the propellers from one direction after fixing the propellers, the processing of the other surface of the propellers needs to turn over the propellers, and the anchor clamps can not meet the propellers with different diameters, and the anchor clamps have the defect of singleness. Chinese patent ' a marine propeller flexible clamp ' (patent publication No. CN 104002164A) ' provides a large-scale propeller flexible clamp device for a propeller with variable pitch blades, aiming at the defects that the marine propeller has low adaptability and can not clamp the marine propellers with variable pitch blades and different propeller hub sizes.
The large-scale marine screw weight and volume are all very big, hoist and mount and place on the lathe workstation and accomplish the location and press from both sides the tight degree of difficulty very big, current screw adds and all adopts special single model anchor clamps with anchor clamps, moreover, the steam generator is simple in structure, hardly adapt to the screw of different propeller hub diameters, consequently, provide a marine screw numerical control processing location sectional fixture, adopt horizontal mode to the screw clamping, avoid the problem of screw upset, improve work efficiency, ensure that the accurate clamping of screw is on work platform.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a numerical control machining, positioning and installing and tool setting clamp for a marine propeller, which mainly solves the technical problems that the adaptability of a clamp for machining the propeller is low, the positioning and clamping are difficult during horizontal clamping, and how to quickly set the tool is solved by adopting the clamping device.
The invention provides the following technical scheme:
a numerical control machining positioning installation fixture for a marine propeller is characterized by comprising a gun movement preventing device, a hydraulic lifting device, a quick positioning device and a driving device,
the gun movement preventing device is arranged at one end of the mandrel, and a clamping block of the gun movement preventing device abuts against one end of the mandrel;
the core shaft is arranged on the hydraulic lifting device, a clamping block of the hydraulic lifting device fixes the core shaft, and the propeller is arranged on the quick positioning device through the hydraulic lifting column;
the quick positioning device is arranged on one side of the hydraulic lifting device, the propeller detached from the hydraulic lifting device is arranged on the quick positioning device, and the mandrel is radially positioned through the quick positioning device;
the driving device is arranged at one end opposite to the gun movement preventing device and abuts against the other end of the mandrel, and the driving device drives the mandrel to rotate so as to adjust the angle position of the propeller.
Furthermore, a pit is arranged below the propeller to be processed, and the pit is used for accommodating the part of the propeller, which is positioned below the horizontal plane of the machine tool workbench.
Further, the gun movement prevention device comprises a hydraulic cylinder base, the hydraulic cylinder base is fixed on the workbench, and a hydraulic mechanism is arranged at the top end of the hydraulic cylinder base and is fixed through an upper cover; the ejector rod of the hydraulic mechanism is connected with the ejector block through a bearing, and the ejector block tightly pushes the mandrel through hydraulic pressure provided by the hydraulic mechanism.
Furthermore, the hydraulic lifting device comprises a bearing base which is fixed on the workbench, and a hydraulic lifting column is arranged in the bearing base and can move in the bearing base in a lifting manner; the end part of the hydraulic lifting column is fixedly connected with a V-shaped block which is used for being arranged on the mandrel.
Furthermore, the driving device comprises a motor support which is movably arranged on the workbench, a servo motor is arranged at the top end of the motor support, the servo motor is connected with a speed reducer, the speed reducer is connected with an elastic coupling, and the elastic coupling is connected with the mandrel; and starting a servo motor, and rotating the mandrel around the axis of the mandrel through the conduction of the speed reducer and the elastic coupling so as to adjust the position of the propeller.
Furthermore, a hydraulic support mechanism is further arranged on the motor support, the hydraulic support mechanism is arranged below the elastic coupling and used for lifting the part of the elastic coupling connected with the servo motor, and the other part of the elastic coupling connected with the core shaft is suspended, so that radial errors are compensated.
Furthermore, the driving device also comprises a guide rail parallel to the mandrel, and the motor support is arranged on the guide rail; the bottom of the motor support is also connected with a ball screw, and the position of the elastic coupling can be adjusted by driving the ball screw through a motor, so that the elastic coupling is normally connected with the mandrel.
Furthermore, quick positioner locates the pit both sides respectively, and one of them quick positioner locates between anti shifting device and the hydraulic pressure elevating gear, and another quick positioner locates between hydraulic pressure elevating gear and the drive arrangement.
Further, quick positioner includes the bearing frame, semicircle type hole groove has been seted up on the bearing frame top, and this semicircle type hole inslot is provided with two pairs of center pin rollers, and center pin roller tip all connects self-aligning bearing, self-aligning bearing passes through the end cover to be fixed on the center pin roller, and self-aligning bearing upper portion passes through the protection of protective cover, is equipped with the clearance between two center pin rollers, the dabber is arranged in on the center pin roller and tangent rather than.
Further, the fixture further comprises a laser auxiliary tool setting device, and the laser auxiliary tool setting device is arranged close to the propeller blades of the propeller; the laser-assisted tool setting device comprises a bearing seat, a bearing seat fixed connection bottom plate, a bottom plate fixed connection linear track, a sliding block is arranged on the linear track, the sliding block is connected with a fixed sliding rod through a connecting block, and one end of the sliding rod, which is close to the paddle, is fixedly connected with a laser ranging sensor.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the propeller can be quickly positioned in the radial direction through the two central shaft roller structures, the problem that the propeller is difficult to position on a machine tool machining platform is solved, and the positioning device can bear larger radial load, so that the resistance of radial rotation is reduced, the efficiency is greatly improved, the working time is reduced, and the practicability and the economical efficiency of the device are improved.
(2) The invention realizes a method for quickly setting the marine propeller through the laser-assisted tool setting system, provides a novel data acquisition system, quickly analyzes and acquires the position information of the marine propeller, does not need workers to observe the tool setting of a workpiece trial cutting method through human eyes, and ensures the safety of operation.
(3) The clamp for machining the marine propeller can be used for clamping the marine propellers with different hub diameters, can always keep the centering relation between the mandrel and the clamp positioning device, has strong flexibility, and overcomes the problem that one clamp can only clamp one type of marine propeller.
(4) The invention solves the problem of radial interference of the mandrel, the driving device and the positioning device in the rotation process of the propeller, overcomes the problem of axial gun movement in the machining process of the propeller through the gun movement prevention device, and can ensure that the mandrel rotates according to the working requirement when a machine tool works, thereby improving the machining precision of the machine tool and ensuring the stability of cutting machining.
Drawings
FIG. 1 is a schematic structural view of a numerical control machining, positioning, mounting and tool setting device for a marine propeller,
figure 2 is a schematic view of the machine tool table of figure 1,
fig. 3 is a schematic view of a partial sectional structure of the gun movement prevention device in fig. 1,
FIG. 4 is a schematic structural diagram of the laser-assisted tool setting device in FIG. 1,
figure 5 is a schematic structural view of the hydraulic lifting device in figure 1,
FIG. 6 is a schematic structural view of the quick positioning device in FIG. 1,
figure 7 is a schematic view of the drive arrangement of figure 1,
the reference numbers in the figures illustrate:
1, a machine tool workbench; 1-1 pit; 1-2 base;
2, a propeller;
3, a mandrel;
4, preventing shifting; 4-1 hydraulic cylinder base; 4-2, covering; 4-3 hydraulic mechanism; 4-4 top blocks; 4-5 of nuts; 4-6 angular contact bearings; 4-7 of flange;
5, a laser auxiliary tool setting device; 5-1 bearing seat; 5-2, a bottom plate; 5-3, a bracket; 5-4 of a coupler; 5-5 servo motors; 5-6 sliding blocks; 5-7 slide bars; 5-8 connecting blocks; 5-9 laser ranging sensors; 5-10 of a guide mechanism; 5-11 linear tracks; 5-12 ball screws;
6 hydraulic lifting device; 6-1 bearing base; 6-2 hydraulic lifting columns; 6-3V-shaped blocks;
7, a quick positioning device; 7-1 bearing seat; 7-2 protective covers; 7-3 central shaft roller; 7-4 self-aligning bearings; 7-5 end covers;
8 driving means; 8-1 servo motor (big); 8-2 reducer; 8-3 elastic couplings; 8-4 hydraulic support mechanisms; 8-5 hydraulic seats; 8-6 sliding blocks; 8-7 motor support; 8-8 linear guide rails; 8-9 ball screws; 8-10 of a bracket; 8-11 shaft couplings; 8-12 servo motors (small).
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a marine screw numerical control processing location installation and tool setting anchor clamps, it includes: the device comprises a machine tool workbench 1, a gun movement prevention device 4, a laser auxiliary tool setting device 5, a hydraulic lifting device 6, a quick positioning device 7 and a driving device 8.
In addition, the directional terms used in the present invention, such as "up", "down", "left", "right", "left up", "left down", "right up", "right down", "front", "rear", etc., refer to the directions of the attached drawings. Accordingly, the directional terminology is used for the purpose of illustration and understanding and is in no way limiting.
Referring to fig. 1, the three-dimensional layout schematic diagram of the numerical control machining, positioning, mounting and tool setting device for the marine propeller mainly comprises a machine tool workbench 1, a propeller 2, a mandrel 3, a gun movement prevention device 4, a laser auxiliary tool setting device 5, a hydraulic lifting device 6, a quick positioning device 7 and a driving device 8. Wherein machine tool workstation 1 arranges subaerial, has the pit in the middle of machine tool workstation 1, and hydraulic pressure elevating gear 6 arranges in the pit both sides, and quick positioner 7 arranges in the pit both sides, and is located the hydraulic pressure elevating gear 6 outside, gun movement prevention device 4 arranges pit one side, drive arrangement 8 arranges at the pit opposite side, and laser is assisted tool setting device 5 and is arranged by the pit with one side of gun movement prevention device 4, is close to paddle department.
Referring to fig. 2, a machine tool table 1 includes a pit 1-1 and a base 1-2. Wherein, a pit 1-1 is arranged in the middle of the machine tool workbench 1, and bases 1-2 are respectively arranged on two sides of the pit 1-1.
Referring to fig. 3, the gun movement prevention device 4 comprises a hydraulic cylinder base 4-1, an upper cover 4-2, a hydraulic mechanism 4-3, a top block 4-4, a nut 4-5, an angular contact bearing 4-6 and a flange 4-7. The hydraulic cylinder base 4-1 is arranged on the upper portion of the base 1-2 on the left side of the pit 1-1, the hydraulic mechanism 4-3 is arranged on the upper portion of the hydraulic cylinder base 4-1 and can achieve reciprocating motion in the horizontal direction, the hydraulic cylinder base 4-1 is fixed on the hydraulic cylinder base 4-1 through the upper cover 4-2, the front portion of the hydraulic mechanism 4-3 is connected with the flange 4-7 through bolts and nuts, the angular contact bearing 4-6 is arranged on the front portion of the flange 4-7, the angular contact bearing 4-6 is fixed on the flange 4-7 through the nut 4-5, the inner hole of the top block 4-4 is embedded into the outer ring of the angular contact bearing 4-6 and is connected through interference fit.
Referring to fig. 4, the laser auxiliary tool setting device 5 comprises a bearing seat 5-1, a bottom plate 5-2, a support 5-3, a coupler 5-4, a servo motor 5-5, a sliding block 5-6, a sliding rod 5-7, a connecting block 5-8, a laser ranging sensor 5-9, a guide mechanism 5-10, a linear track 5-11 and a ball screw 5-12. The left side of the machine tool workbench is close to the position of a blade, the bearing seat 5-1 is arranged on the bearing seat 5-1 and connected through bolts and nuts, the linear track 5-11 is arranged on the bottom plate 5-2, the linear track 5-11 is provided with the sliding block 5-6, the sliding block 5-6 is connected with the connecting block 5-8, the ball screw 5-12 is connected with the servo motor 5-5 through the coupler 5-4, the coupler 5-4 is supported and protected through the support 5-3, the servo motor 5-5 rotates to drive the sliding block 5-6 and the connecting block 5-8 to reciprocate, the upper portion of the connecting block 5-8 is provided with the sliding rod 5-7, and the front portion of the sliding rod 5-7 is provided with the laser ranging sensor 5-9.
Referring to fig. 5, the hydraulic lifting device 6 comprises a bearing base 6-1, a hydraulic lifting column 6-2 and a V-shaped block 6-3. The bearing bases 6-1 are respectively arranged on two sides of the pit 1-2, the hydraulic lifting columns 6-2 are arranged on the bearing bases 6-1, and the V-shaped blocks 6-3 are arranged on the hydraulic lifting columns 6-2, so that the V-shaped blocks 6-3 can move up and down.
Referring to fig. 6, the quick positioning device 7 comprises a bearing seat 7-1, a protective cover 7-2, a central shaft roller 7-3, a self-aligning bearing 7-4 and an end cover 7-5. The rapid positioning device 7 is respectively arranged on two sides of a pit, the bearing seat 7-1 is arranged on the outer side of the hydraulic lifting device 6 and is installed on the bearing base 6-1, two central shaft rollers 7-3 are arranged in a semicircular hole groove in the bearing seat 7-1, self-aligning bearings 7-4 are arranged at two ends of the central shaft rollers 7-3, the self-aligning bearings 7-4 are fixed on the central shaft rollers 7-3 through end covers 7-5, the upper parts of the self-aligning bearings 7-4 are protected through protective covers 7-2, and gaps are formed between the two central shaft rollers 7-3.
Referring to fig. 7, the driving device 8 comprises a servo motor (large) 8-1, a speed reducer 8-2, an elastic coupling 8-3, a hydraulic supporting mechanism 8-4, a hydraulic seat 8-5, a sliding block 8-6, a motor support 8-7, a linear guide rail 8-8, a ball screw 8-9, a support 8-10, a coupling 8-11 and a servo motor (small) 8-12. Wherein a servo motor (small) 8-12 is arranged on a base 1-2 and is connected with a ball screw 8-9 through a coupling 8-11 to drive a motor support 8-7, the coupling 8-11 is supported through a bracket 8-10, a linear guide rail 8-8 is arranged on the base 1-2 and is connected with the motor support 8-7 through a slide block 8-6, a servo motor (large) 8-1 is arranged on the rightmost side of the motor support 8-7, the servo motor (large) 8-1 is connected with a speed reducer 8-2, the speed reducer 8-2 is connected with an elastic coupling 8-3, the lower part of the elastic coupling 8-3 is supported through a hydraulic support mechanism 8-4, and the part of the elastic coupling 8-3 connected with the servo motor (large) 8-1 is arranged on the hydraulic support mechanism 8-4, the part of the elastic connecting shaft connected with the mandrel is suspended, and the radial error between the mandrel and the output rod of the servo motor is compensated through the elastic connecting shaft. The lower part of the hydraulic support mechanism 8-4 is arranged on a hydraulic seat 8-5, and the hydraulic seat 8-5 is arranged at the front part of the motor support 8-7.
Referring to fig. 1-7, a principle of tool setting of a numerical control machining, positioning and mounting fixture for a marine propeller comprises the following steps:
the propeller 2 is hoisted to the position right above a pit 1-1 of the machine tool workbench 1, the propeller 2 is slowly lowered, meanwhile, the hydraulic lifting device 6 is lifted, the lifting height is higher than that of the quick positioning device 7, so that the mandrel 3 is received through the hydraulic lifting device 6, and two ends of the mandrel 3 are lowered onto the V-shaped blocks 6-3.
When the mandrel 3 falls to the hydraulic lifting device 6, the mandrel starts to descend, when the descending height of the hydraulic lifting device 6 is lower than that of the quick positioning device 7, the mandrel 3 falls onto the quick positioning device 7, and two central shaft rollers 7-3 in the quick positioning device 7 are tangent to the excircle of the mandrel 3, so that the radial positioning of the propeller 2 is realized.
The gun movement prevention device 4 starts to work, the hydraulic mechanism 4-3 pushes out the ejecting block 4-4 through the hydraulic rod piece, the ejecting block 4-4 abuts against the end face of one end of the mandrel 3, and the ejecting block 4-4 can rotate in the radial direction together with the mandrel 3.
The driving device 8 starts to work, the servo motor (small) 8-12 drives the motor support 8-7 to move from the other end of the mandrel 3 to the end face of the mandrel 3, and the suspended half part of the elastic coupling 8-3 in the front of the motor support 8-7 is connected with the mandrel 3 in a matched mode through a key, so that the clamping of the propeller 2 is completed.
The laser-assisted tool setting device 5 starts to work, the servo motor 5-5 works to enable the sliding rod 5-7 to move towards the paddle, the laser ranging sensor 5-9 in the front of the sliding rod 5-7 constantly transmits data information, when the working range of the paddle of the propeller 2 is close, the laser ranging sensor 5-9 measures the data information of the paddle, the data information obtained by the signal transmission sensor, after one point is measured, the driving device 8 rotates the mandrel 3 to drive the propeller 2 to rotate for a certain angle, the laser ranging sensor 5-9 measures the paddle information again, the data information is transmitted to the control system, the center line position of the paddle is obtained through multiple measurement and analysis, the driving device 8 rotates to the other paddle to obtain the paddle information through the same method, the center line position of the paddle is obtained through analysis, and the center line between the two paddles is obtained through, the rotation angle of the driving device 8 enables the center line between the two blades to be perpendicular to the workbench, the position of a gap between the two blades is adjusted to facilitate machining of a machine tool, the position data information of the rotation direction is obtained, then the coordinate position of the center of the end face of the propeller hub of the propeller 2 is obtained through the obtained coordinate information of the blades by using a reverse engineering method, the position of a workpiece part is found by taking the point of the center of the end face of the propeller hub of the propeller 2 as the zero point position of the workpiece, and the machine tool can directly realize tool setting work of the propeller.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (10)
1. A numerical control machining positioning installation fixture for a marine propeller is characterized by comprising a gun movement preventing device, a hydraulic lifting device, a quick positioning device and a driving device,
the gun movement preventing device is arranged at one end of the mandrel, and a clamping block of the gun movement preventing device abuts against one end of the mandrel;
the core shaft is arranged on the hydraulic lifting device, a clamping block of the hydraulic lifting device fixes the core shaft, and the propeller is arranged on the quick positioning device through the hydraulic lifting column;
the quick positioning device is arranged on one side of the hydraulic lifting device, the propeller detached from the hydraulic lifting device is arranged on the quick positioning device, and the mandrel is radially positioned through the quick positioning device;
the driving device is arranged at one end opposite to the gun movement preventing device and abuts against the other end of the mandrel, and the driving device drives the mandrel to rotate so as to adjust the angle position of the propeller.
2. The numerical control machining positioning and mounting clamp for the marine propeller as recited in claim 1, wherein a pit is further formed below the propeller to be machined, and the pit is used for accommodating a part of the propeller below the horizontal plane of a machine tool workbench.
3. The marine propeller numerical control machining, positioning and mounting fixture as claimed in claim 1, wherein the anti-shifting device comprises a hydraulic cylinder base, the hydraulic cylinder base is fixed on a workbench, and a hydraulic mechanism is arranged at the top end of the hydraulic cylinder base and is fixed through an upper cover; the ejector rod of the hydraulic mechanism is connected with the ejector block through a bearing, and the ejector block tightly pushes the mandrel through hydraulic pressure provided by the hydraulic mechanism.
4. The marine propeller numerical control machining, positioning and mounting clamp as claimed in claim 1, wherein hydraulic lifting devices are arranged on two sides of the pit; the hydraulic lifting device comprises a bearing base, the bearing base is fixed on the workbench, a hydraulic lifting column is arranged in the bearing base, and the hydraulic lifting column can move in the bearing base in a lifting mode; the end part of the hydraulic lifting column is fixedly connected with a V-shaped block which is used for loading and positioning the mandrel.
5. The numerical control machining, positioning and mounting fixture for the marine propeller as recited in claim 1, wherein the driving device comprises a motor support, the motor support is movably arranged on the workbench, a servo motor is arranged at the top end of the motor support, the servo motor is connected with a speed reducer, the speed reducer is connected with an elastic coupling, and the elastic coupling is connected with the mandrel; and starting a servo motor, and rotating the mandrel around the axis of the mandrel through the conduction of the speed reducer and the elastic coupling so as to adjust the position of the propeller.
6. The numerical control machining positioning and mounting clamp for the marine propeller as claimed in claim 5, wherein a hydraulic support mechanism is further arranged on the motor support, the hydraulic support mechanism is arranged below the elastic coupling and is used for lifting a part of the elastic coupling connected with the servo motor, and the other part connected with the mandrel is suspended, so that radial errors are compensated.
7. The marine propeller numerical control machining positioning mounting fixture as recited in claim 5, wherein the driving device further comprises a guide rail parallel to the mandrel, and the motor support is arranged on the guide rail; the bottom of the motor support is also connected with a ball screw, and the position of the elastic coupling can be adjusted by driving the ball screw through a motor, so that the elastic coupling is normally connected with the mandrel.
8. The numerical control machining positioning and mounting fixture for the marine propeller as claimed in claim 1, wherein the quick positioning devices are respectively arranged on two sides of the pit, one of the quick positioning devices is arranged between the gun movement preventing device and the hydraulic lifting device, and the other quick positioning device is arranged between the hydraulic lifting device and the driving device.
9. The numerical control machining positioning installation fixture for the marine propeller as claimed in claim 1, wherein the quick positioning device comprises a bearing seat, a semicircular slot is formed in a top end of the bearing seat, two pairs of center shaft rollers are disposed in the semicircular slot, end portions of the center shaft rollers are connected with a center adjusting bearing, the center adjusting bearing is fixed on the center shaft rollers through end covers, an upper portion of the center adjusting bearing is protected by a protective cover, a gap is formed between the two center shaft rollers, and the mandrel is disposed on and tangent to the center shaft rollers.
10. The marine propeller numerical control machining positioning and mounting fixture as claimed in claim 1, wherein the fixture further comprises a laser-assisted tool setting device, and the laser-assisted tool setting device is arranged close to blades of the propeller; the laser-assisted tool setting device comprises a bearing seat, a bearing seat fixed connection bottom plate, a bottom plate fixed connection linear track, a sliding block is arranged on the linear track, the sliding block is connected with a fixed sliding rod through a connecting block, and one end of the sliding rod, which is close to the paddle, is fixedly connected with a laser ranging sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910966634.5A CN110722371B (en) | 2019-10-12 | 2019-10-12 | Numerical control machining positioning mounting fixture for marine propeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910966634.5A CN110722371B (en) | 2019-10-12 | 2019-10-12 | Numerical control machining positioning mounting fixture for marine propeller |
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| CN110722371A true CN110722371A (en) | 2020-01-24 |
| CN110722371B CN110722371B (en) | 2022-03-08 |
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| CN201910966634.5A Active CN110722371B (en) | 2019-10-12 | 2019-10-12 | Numerical control machining positioning mounting fixture for marine propeller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083468A (en) * | 2021-12-24 | 2022-02-25 | 江西省信航航空科技有限公司 | Rotor wing center piece frock clamp |
| CN116577020A (en) * | 2023-07-13 | 2023-08-11 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
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