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CN-121989073-A - Clamp mechanism suitable for machining large marine propeller

CN121989073ACN 121989073 ACN121989073 ACN 121989073ACN-121989073-A

Abstract

The invention provides a clamp mechanism suitable for machining a large marine propeller, which comprises a supporting base and an operating platform, wherein the operating platform is arranged above the supporting base and is used for placing the propeller, a clamping unit, an auxiliary stabilizing unit and an angle adjusting unit, the clamping unit and the auxiliary stabilizing unit are arranged at the operating platform and are used for clamping and fixing an inner hole of the propeller, the auxiliary stabilizing unit is used for supporting a propeller blade, the angle adjusting unit is respectively connected with the auxiliary stabilizing unit and the supporting base, and the angle adjusting unit is used for adjusting the inclination angle of the operating platform. According to the invention, the positions of the clamping plates are synchronously controlled through the expansion assembly, so that the clamping plates can realize expansion type clamping and fixing of the inner holes of the propeller, the device can be suitable for propellers with different inner hole diameters, the application range is wide, and the clamping force can be controlled at the same time, so that the propellers can be stably fixed.

Inventors

  • LI WENJUN
  • HU CHANGJIANG
  • LI REN
  • Zhai Qingchang
  • ZHOU JIANDONG

Assignees

  • 大连誉洋工业智能有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (10)

  1. 1. The fixture mechanism suitable for machining the large marine propeller comprises a supporting base (1) and is characterized by further comprising an operating table (2), wherein the operating table (2) is arranged above the supporting base (1), and the operating table (2) is used for placing the propeller; The device comprises a clamping unit, an auxiliary stabilizing unit and an angle adjusting unit, wherein the clamping unit and the auxiliary stabilizing unit are both arranged at an operation table (2), the clamping unit is used for clamping and fixing an inner hole of a propeller, the auxiliary stabilizing unit is used for supporting the propeller blade, the angle adjusting unit is respectively connected with the auxiliary stabilizing unit and a supporting base (1), and the angle adjusting unit is used for adjusting the inclination angle of the operation table (2); The clamping unit comprises a fixed frame shell (3), a plurality of clamping plates (4) distributed in an annular array are arranged above the fixed frame shell (3), and the clamping plates (4) are in transmission connection with the expansion assembly (5); the auxiliary stabilizing unit comprises a stabilizing support assembly (6), a plurality of stabilizing support assemblies (6) distributed in an annular array are arranged above the support base (1), the bottoms of the stabilizing support assemblies (6) are in transmission connection with a control assembly (7), and the control assembly (7) is in transmission connection with a synchronizing assembly (8).
  2. 2. The fixture mechanism for processing the large marine propeller as set forth in claim 1, wherein the clamping plate (4) comprises a stepped clamping piece (41), an anti-falling frame (43) is slidably arranged at the inner cavity of the stepped clamping piece (41), a movable connecting column (42) is connected to the bottom of the anti-falling frame (43), and the bottom of the movable connecting column (42) is connected with the expansion assembly (5); the top of the anti-falling frame (43) is connected with a plurality of elastic resetting pieces (44), and the top ends of the elastic resetting pieces (44) are connected with the inner wall of the top surface of the stepped clamping piece (41).
  3. 3. The fixture mechanism for processing the large marine propeller as recited in claim 1, wherein the expansion assembly (5) comprises a plurality of expansion threaded shafts (51), an expansion moving plate (52) is connected to the surface of each expansion threaded shaft (51) in a threaded manner, and the top of each expansion moving plate (52) is connected with the bottom end of each moving connecting column (42); One end of the expansion threaded shaft (51) far away from the fixed frame shell (3) is connected with a side bevel gear (53), the side surface of the side bevel gear (53) is connected with the side surface of a middle bevel gear (54) in a meshed mode, and the middle bevel gear (54) is connected with the output end of the expansion power source (55).
  4. 4. The fixture mechanism for machining large marine propeller as set forth in claim 1, wherein the stabilizing support assembly (6) comprises a lower support member and an upper contact member, the upper contact member is disposed above the lower support member, a lifting device (61) is connected between the lower support member and the upper contact member, and the lower support member is slidably connected with the top of the support base (1).
  5. 5. The fixture mechanism for large marine propeller machining as set forth in claim 4, wherein said lower support member is connected to a control assembly (7), said control assembly (7) including a plurality of control threaded shafts (71); The surface of the control threaded shaft (71) is in threaded connection with a sliding plate (73), the top of the sliding plate (73) is connected with a follow-up column (74), and the top of the follow-up column (74) is connected with the bottom of the lower supporting part.
  6. 6. The fixture mechanism suitable for processing the large marine propeller as set forth in claim 5, wherein one end of the control threaded shaft (71) is in transmission connection with the synchronizing assembly (8), the synchronizing assembly (8) comprises a plurality of bevel gear transmission parts (81), the bottom of the bevel gear transmission parts (81) is connected with the top of the auxiliary gear (82), and the side surface of the auxiliary gear (82) is in meshed connection with the side surface of the main gear (83); the main gear (83) is connected with the output end of the synchronous power source (84).
  7. 7. The fixture mechanism suitable for machining the large marine propeller as claimed in claim 1, wherein the angle adjusting unit comprises an adjustable supporting component (10), the adjustable supporting component (10) is respectively connected with the bottom of the protective frame shell (9) and the top of the supporting base (1), two symmetrically distributed tilting components (11) are arranged outside the adjustable supporting component (10), the top end of the tilting component (11) is connected with the bottom of the supporting ring frame (72), and the bottom of the tilting component (11) is in transmission connection with the position regulating component (12); The top of the supporting base (1) is connected with a plurality of fixed supporting frames (13) distributed in a ring-shaped array.
  8. 8. The fixture mechanism for machining the large marine propeller as recited in claim 7, wherein the adjustable support assembly (10) comprises a fixed support column (101), the bottom end of the fixed support column (101) is connected with the top of the support base (1), the top end of the fixed support column (101) is rotatably connected with a universal rolling ball (102), and the top of the universal rolling ball (102) is connected with the bottom of the protective frame shell (9).
  9. 9. The fixture mechanism suitable for machining the large marine propeller as recited in claim 7, wherein the tilting assembly (11) comprises a telescopic device (111), an adjusting plate (112) is connected to the bottom of the telescopic device (111), the adjusting plate (112) is slidably connected with the surface of a fixed column (113), and two ends of the fixed column (113) are connected with a reinforcing frame (114); The telescopic device is characterized in that a rotating block (115) is connected to the top end of the telescopic device (111), the rotating block (115) is rotationally connected with the surface of a mounting frame (116), two ends of the mounting frame (116) are connected with the bottom of a rotating casing (117), the inner side of the rotating casing (117) is slidingly connected with the surface of a rotating track (118), and the top of the rotating track (118) is connected with the bottom of a supporting ring frame (72).
  10. 10. The fixture mechanism for processing large marine propeller as recited in claim 9, wherein the bottom of the reinforcing frame (114) is connected with the position control assembly (12), the position control assembly (12) comprises a console (121), and the top of the console (121) is connected with the bottom of the reinforcing frame (114); The control power source (122) is installed at the bottom of the control console (121), a rotating gear (123) is connected to the output end of the control power source (122), and the side face of the rotating gear (123) is connected with the top of the fixed toothed ring (124) in a meshed mode.

Description

Clamp mechanism suitable for machining large marine propeller Technical Field The invention relates to the field of machining, in particular to a clamp mechanism suitable for machining a large marine propeller. Background The propeller means a device for converting the rotational power of an engine into propulsive force by rotating blades in air or water, and may have two or more blades connected to a hub, the backward face of the blades being a helicoid or a propeller similar to the helicoid. Propellers are widely used, such as propellers of airplanes and ships. The marine propeller is a propulsion unit at the forefront of a ship, is usually arranged below a stern waterline and mainly comprises two parts of a blade with an airfoil curved surface and a blade hub connected with a transmission shaft, and the working principle of the marine propeller combines Newton third law and Bernoulli effect, namely when a main engine drives the propeller to rotate through a shafting, the blade with a specific inclination angle and curvature can push water backwards at a high speed, axial thrust is generated by utilizing the reaction force of water flow, and meanwhile, the water flow speed difference on the front surface and the back surface of the blade forms a pressure difference to further strengthen the thrust, so that the rotation power of an engine is efficiently converted into the forward power of the ship. The fixture mechanism is a core fixture for realizing high-precision milling and grinding of the hub and the blade, and generally comprises a rigid fixture and a flexible fixture at present, but the rigid fixture has poor universality, the propellers of different types need to be matched with corresponding fixtures, so that the processing cost of the propellers is high, the period is long, the whole rigidity of the flexible fixture is weak, micro deformation and vibration are easier to occur in large cutting force and heavy load processing, the profile precision and the surface quality of the blade are influenced, the operation flow is complex, and the failure rate is high. Disclosure of Invention The invention aims to overcome the defects of poor universality and insufficient stability in the prior art and provides a clamp mechanism suitable for processing a large-scale marine propeller. The invention solves the technical problems by the following technical scheme: the invention provides a clamp mechanism suitable for processing a large marine propeller, which comprises a supporting base and is characterized by further comprising an operating table, a clamping mechanism and a clamping mechanism, wherein the operating table is arranged above the supporting base and is used for placing the propeller; the device comprises a clamping unit, an auxiliary stabilizing unit and an angle adjusting unit, wherein the clamping unit and the auxiliary stabilizing unit are both arranged at an operation table, the clamping unit is used for clamping and fixing an inner hole of a propeller, the auxiliary stabilizing unit is used for supporting the propeller blade, the angle adjusting unit is respectively connected with the auxiliary stabilizing unit and a supporting base, and the angle adjusting unit is used for adjusting the inclination angle of the operation table; The clamping unit comprises a fixed frame shell, a plurality of clamping plates distributed in an annular array are arranged above the fixed frame shell, and the clamping plates are in transmission connection with the expansion assembly; the auxiliary stabilizing unit comprises a stabilizing supporting component, a plurality of stabilizing supporting components distributed in an annular array are arranged above the supporting base, the bottom of the stabilizing supporting component is in transmission connection with a control component, and the control component is in transmission connection with a synchronizing component. In the technical scheme, the positions of the clamping plates are synchronously controlled through the expansion assembly, so that the clamping plates can realize the expansion type clamping and fixing of the inner holes of the propeller, the device can be suitable for propellers with different inner hole diameters, the application range is wide, and meanwhile, the clamping force can be controlled, so that the propellers can be stably fixed; Further, the synchronous assembly is used for synchronously controlling the operation of the control assembly, so that the position of the stable supporting assembly can be synchronously controlled, the height of the stable supporting assembly can be adjusted, the stable supporting assembly and other structures can support the blades of different types of propellers, the stability of fixing the propeller blades is further improved, and the precision of the propeller blades during processing can be improved especially for the large-scale marine propellers. Preferably, the clamping plate comprises a stepped clamp