Portable ship flange hole milling device and method

Abstract

The invention provides a portable ship flange hole milling device and method. Comprising a machine body, a transmission mechanism, a rotating mechanism and a feeding mechanism, the transmission mechanism is provided with a worm shaft assembled on the machine body, the outer end of the worm shaft is provided with a belt pulley connected with power, and a worm on the worm shaft transmits power; the cutting mechanism is provided with a cutter bar which is of a lead screw structure, the upper portion of the cutter bar is assembled on the machine body through a sleeve, and a worm gear is assembled in the middle of the sleeve and is perpendicular to and meshed with a worm of the worm shaft in a staggered mode. A cutter is assembled at the lower part of the cutter bar, is used for milling holes and is locked through a jackscrew; the feeding mechanism is provided with a nut seat, the nut seat comprises a nut and a boss, the nut seat is assembled on the top of the machine body through a lower baffle and an upper baffle, the cutter bar is in threaded connection with the nut, feeding of the cutter bar is achieved, and a cutter is driven to conduct hole milling operation; a manual feeding mechanism is arranged between the lower baffle and the upper baffle and used for driving the nut to be meshed with the cutter bar lead screw, and centering of a cutter in hole milling is carried out. The hole milling device is suitable for use.

Description

Technical Field

[0001] The invention relates to the milling of bolt holes of rudder blades and rudder stock flanges in the field of ships, and in particular to a portable ship flange milling device and method. Background Art

[0002] At present, the rudder blade and rudder stock of a ship are connected by flanges. Since the rudder blade and rudder stock flanges are processed separately, in order to ensure that the rudder blade and rudder stock flanges are correctly installed in the center, the rudder blade and rudder stock need to be aligned and the flange bolt holes need to be milled at the same time.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application:

[0004] Due to the large size and heavy weight of the rudder blades and rudder stocks, the small processing area and the complex environment; it is difficult to perform milling processing on the flange bolt holes with large tools.

[0005] Therefore, in view of the above situation, and according to the size of the bolt holes of the rudder blade and the rudder stock flange and the processing area, a portable ship flange milling device is designed to realize the milling of the bolt holes of the rudder blade and the rudder stock flange, meeting the requirements of the connection and fixation of the rudder blade and the rudder stock flange. The construction process is simplified, the construction difficulty is reduced, and the work efficiency is improved. Summary of the invention

[0006] In order to solve the shortcomings of the prior art, the embodiment of the present application provides a portable ship flange milling device and method for the problem that the flange bolt holes of the rudder blade and the rudder stock cannot be milled under the narrow construction space and complex conditions. The device solves the technical problem of milling the flange bolt holes of the rudder blade and the rudder stock by arranging a transmission mechanism on the body to provide rotational power for the tool on the rotating mechanism and controlling the diameter of the tool through the feeding mechanism.

[0007] The solution adopted by the embodiment of the present application to solve the technical problem is:

[0008] A portable ship flange milling device comprises a body, a transmission mechanism, a cutting mechanism and a feeding mechanism; the body is a box structure, which is used to install and fix the device near the rudder blade and the rudder stock flange; the transmission mechanism has a worm shaft assembled on the body, a pulley is arranged at the outer end of the worm shaft to receive power, and the worm on the worm shaft transmits power; the cutting mechanism has a tool bar, which is a screw structure, the upper part of which is assembled on the body through a sleeve, and a worm wheel is arranged in the middle of the sleeve, and the worm wheel and the worm of the worm shaft are staggered and vertical and meshed with each other; a tool is arranged at the lower part of the tool bar for milling holes and locked by a top screw; the feeding mechanism has a nut seat, which includes a nut and a boss, and the nut seat is assembled on the top of the body through a lower baffle and an upper baffle, and the tool bar is screwed with the nut to realize the feeding of the tool bar and drive the tool to perform the milling operation; a manual feeding mechanism is arranged between the lower baffle and the upper baffle, which is used to drive the nut to mesh with the tool bar screw to center the tool in the milling hole.

[0009] In order to further solve the technical problem to be solved by the embodiments of the present application, in a portable ship flange milling method provided by the embodiments of the present application,

[0010] A portable ship flange milling method, using a portable ship flange milling device, includes the following steps:

[0011] First, prepare in advance a base for installing the flange milling device near the flange of the rudder blade and the rudder stock, and fix the machine body through the limiting base;

[0012] Secondly, insert one end of the tool bar with the tool into the flange bolt hole, rotate the manual rotation shaft to make the tool contact with the inner wall of the flange bolt hole, and observe whether the tool bar moves vertically;

[0013] Secondly, connect the pulley to the power source and test run the device to see if it is operating normally;

[0014] Secondly, rotate the manual rotating shaft, and the tool bar drives the tool to rotate, and observe the contact between the tool and the flange bolt hole. If no iron chips are generated, the tool needs to be readjusted to directly generate iron chips, so that the tool bar runs to the depth of the flange bolt hole, and the processing is repeated until the size of the flange bolt hole meets the requirements;

[0015] Finally, lift the tool bar to clear the tool from the flange bolt hole and disassemble the unit.

[0016] Positive effects:

[0017] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0018] 1. Since the embodiment of the present application adopts the technical means of arranging a transmission mechanism, a cutting mechanism and a feeding mechanism on the machine body, the feeding mechanism is arranged on the upper part of the cutting mechanism, and the cutting mechanism and the transmission mechanism are staggered and perpendicular, it effectively solves the technical problem of the transmission mechanism, the cutting mechanism and the feeding mechanism being converged on the machine body in the prior art, thereby achieving the technical effect that the device can be carried along with the machine body and is easy to carry.

[0019] 2. Since the embodiment of the present application adopts the technical means of having a pulley on the transmission mechanism arranged on the machine body, the technical problem in the prior art that the external power source can be quickly connected to the transmission mechanism is effectively solved, thereby achieving the technical effect of moving the milling device at the work site and facilitating construction operations.

[0020] 3. Since the embodiment of the present application adopts the technical means of setting a limited position base on the side of the body 1, it effectively solves the technical problem of locking and fixing the body near the rudder blade and the rudder stock flange in the prior art, thereby achieving the technical effect of milling holes and improving work efficiency.

[0021] 4. Since the embodiment of the present application adopts the technical means of a tapered sleeve with a larger lower part and a smaller upper part having a taper angle, when the tool rod and the sleeve are assembled in the worm gear assembly hole, the conical structure of the sleeve can offset a part of the axial force generated by the tool milling hole, effectively solving the technical problem of tool stability in the prior art, and thus achieving the technical effect of smooth operation, safety and reliability of the tool.

[0022] 5. Since the embodiment of the present application adopts a technical means of providing a manual feed mechanism between the upper baffle and the lower baffle, a hexagonal edge is provided on the upper portion of the manual rotating shaft equipped with a manual driving gear; the manual driving gear is meshed with the manual driven gear, a nut is installed in the manual driven gear, and the nut is threadedly connected to the lead screw of the tool rod, which effectively solves the technical problem of tool centering in the prior art, and a wrench is used to drive the manual rotating shaft to rotate, the manual driving gear is meshed with the manual driven gear, and the manual driven gear drives the nut to rotate, which can drive the tool on the tool rod to rotate and lift, complete the centering of the tool milling hole, and thus achieve the technical effect of tool centering.

[0023] The invention is suitable for application as a portable ship flange milling device and method. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1This is the AA front view of this embodiment;

[0026] Figure 2 This is a top view of BB in this embodiment;

[0027] Figure 3 This is a side view of CC of this embodiment;

[0028] Figure 4 This is the front view of the machine body;

[0029] Figure 5 It is the side view of the machine body;

[0030] Figure 6 It is a top view of the upper end cover;

[0031] Figure 7 It is a top view of the lower end cover;

[0032] Figure 8 This is the main view of the gear shaft;

[0033] Fig. 9 This is the half-section front view of the casing;

[0034] Fig.10 This is the full section front view of the copper sleeve;

[0035] Fig.11 This is a half-section front view of the nut.

[0036] In the figure:

[0037] 1. Body,

[0038] 11. Limit base,

[0039] 12. Worm assembly hole,

[0040] 13. Worm gear assembly hole,

[0041] 14. Groove;

[0042] 2. Transmission mechanism,

[0043] 21. Pulley,

[0044] 22. Worm shaft,

[0045] 23. Cantilever seat,

[0046] 24. Single row radial ball bearing,

[0047] 25.Cantilever seat cover,

[0048] 26. Single row tapered roller bearing,

[0049] 27. Stuffy cover,

[0050] 3. Cutting mechanism,

[0051] 31. Tool bar,

[0052] 32. Knives,

[0053] 33. Top thread,

[0054] 34. Worm gear,

[0055] 35. Casing,

[0056] 351. Cone sleeve,

[0057] 352. Screw hole,

[0058] 36. Copper sleeve,

[0059] 361. Cone,

[0060] 362.Casing hole,

[0061] 363. Lubrication groove,

[0062] 37. Lower end cover,

[0063] 38. Upper end cover;

[0064] 4. Feeding mechanism,

[0065] 41. Lower baffle,

[0066] 411. Limiting hole,

[0067] 412.Threaded hole,

[0068] 413. Lower rotating shaft hole,

[0069] 414. Bolt hole,

[0070] 42. Upper baffle,

[0071] 421. Thread nut limit hole,

[0072] 422.Through hole,

[0073] 423. Upper rotating shaft hole,

[0074] 43. Thread nut holder,

[0075] 431. Silk mother,

[0076] 432. Boss,

[0077] 44. Bolt assembly,

[0078] 45. Spacer sleeve,

[0079] 46. ​​Manual driven gear,

[0080] 47. Manually rotate the shaft,

[0081] 471. Axle,

[0082] 472. Six-sided,

[0083] 473. Upper shoulder,

[0084] 474. Lower shoulder,

[0085] 48. Manual driving gear. DETAILED DESCRIPTION

[0086] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0087] According to the attached Figures 1 to 11 As shown, a portable ship flange milling device includes a body 1, a transmission mechanism 2, a cutting mechanism 3 and a feeding mechanism 4;

[0088] The body 1 is a box structure, which is used to install and fix the device near the rudder blade and the rudder stock flange;

[0089] The transmission mechanism 2 has a worm shaft 22 mounted on the machine body 1, a pulley 21 is provided at the outer end of the worm shaft 22 to receive power, and the worm on the worm shaft 22 transmits power;

[0090] The cutting mechanism 3 has a tool bar 31, which is a lead screw structure. The upper part of the tool bar 31 is assembled on the machine body 1 through a sleeve 35. The middle part of the sleeve 35 is equipped with a worm gear 34. The worm gear 34 and the worm of the worm shaft 22 are staggered and perpendicular and mesh with each other. A tool 32 is assembled at the lower part of the tool bar 31 for milling holes and is locked by a top screw 33.

[0091] The feeding mechanism 4 has a nut seat 43, which includes a nut 431 and a boss 432. The nut seat 43 is assembled on the top of the body 1 through the lower baffle 41 and the upper baffle 42. The tool rod 31 is screwed with the nut 431 to realize the feeding of the tool rod 31 and drive the tool 32 to perform the milling operation; a manual feeding mechanism is arranged between the lower baffle 41 and the upper baffle 42, which is used to drive the nut 431 to engage with the lead screw of the tool rod 31 to center the tool 32 in the milling hole.

[0092] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0093] Since the transmission mechanism 2, the cutting mechanism 3 and the feeding mechanism 4 are arranged on the machine body 1, the feeding mechanism 4 is arranged on the upper part of the cutting mechanism 3, and the cutting mechanism 3 and the transmission mechanism 2 are staggered and perpendicular, the transmission mechanism 2, the cutting mechanism 3 and the feeding mechanism 4 are gathered on the machine body 1, can be carried along with the machine body 1, and are easy to carry.

[0094] Since the transmission mechanism 2 arranged on the machine body 1 has a pulley 21, the external power source can be quickly connected to the transmission mechanism 2, so that the milling device can be moved on the job site and the construction work is convenient.

[0095] In order to ensure the stability of the structure of this embodiment, see the attached Figure 2 , 4 5. A limit base 11 is arranged on the side of the body 1. The limit base 11 is a flange structure and is provided with bolt holes for fastening it to a mounting seat near the rudder blade and the rudder stock flange; a horizontal worm assembly hole 12 is arranged in the middle of the body 1 for assembling the worm shaft 22; a longitudinal worm wheel assembly hole 13 is arranged on the outside of the body 1 for assembling the knife bar 31. The worm wheel assembly hole 13 and the worm assembly hole 12 are perpendicularly staggered with each other, and a groove 14 is arranged in the middle of the worm wheel assembly hole 13. The upper part of the groove 14 is open for assembling the worm wheel 34 on the knife bar 31, thereby realizing the transmission of meshing power between the worm on the worm shaft 22 and the worm wheel 34.

[0096] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0097] Since the limiting base 11 is arranged on the side of the machine body 1, the machine body 1 can be locked and fixed near the rudder blade and the rudder stock flange to perform the milling operation, thereby improving the work efficiency.

[0098] In order to further ensure the stability of the structure of this embodiment, see the attached Figure 2 The transmission mechanism 2 includes a pulley 21, a worm shaft 22, a cantilever seat 23, a single-row radial ball bearing 24, a cantilever seat cover 25, a single-row tapered rolling bearing 26 and a cover 27;

[0099] Single-row tapered rolling bearings 26 are installed at both ends of the worm of the worm shaft 22, which are assembled in the worm assembly hole 12 of the body 1. One end of the worm shaft 22 is encapsulated by a cover 27, and the other end of the worm shaft 22 extends out of the worm assembly hole 12. A cantilever seat 23 is provided on the end face of the worm assembly hole 12. The cantilever seat 23 is a cylindrical structure, one end of which is connected to the worm assembly hole 12, and the other end is equipped with a single-row radial ball bearing 24 to support the worm shaft 22. The single-row radial ball bearing 24 is encapsulated in the cantilever seat 23 through a cantilever seat cover 25. A pulley 21 is installed at the end of the worm shaft 22 that passes through the cantilever seat cover 25. The pulley 21 is connected to a power source, thereby driving the worm shaft 22 to rotate, thereby realizing the worm rotation of the worm shaft 22.

[0100] In order to optimize the structure of this embodiment, see the attached Figure 3 , 9 , 10, the cutting mechanism 3 includes a tool rod 31, a tool 32, a top screw 33, a worm gear 34, a sleeve 35, a copper sleeve 36, a lower end cover 37 and an upper end cover 38;

[0101] The tool rod 31 is a stepped shaft with a radial through groove at the bottom. A top screw 33 is axially arranged at the bottom of the tool rod 31, and the top screw 33 extends to the through groove to lock and fix the tool 32 embedded in the through groove; the upper part of the tool rod 31 is a lead screw, which is screwed to the nut 431 at the top of the worm gear assembly hole 13 assembled on the body 1; the sleeve 35 is assembled on the lead screw of the tool rod 31 by key connection, and the upper end is assembled in the worm gear assembly hole 13 through the upper end cover 38 and the lower end is assembled in the worm gear assembly hole 13 through the lower end cover 37; the middle part of the sleeve 35 is equipped with a worm gear 34 and is accommodated in the groove 14 of the body 1; a copper sleeve 36 is provided between the sleeve 35 and the accommodating cavity of the worm gear assembly hole 13 to reduce the wear of the sleeve 35, wherein the copper sleeve 36 is separated by the worm gear 34 to form an upper and lower section.

[0102] Preferably, the sleeve 35 is a cylindrical structure with a straight inner part and a tapered outer part. The inner cavity of the sleeve 35 is a screw hole 352 which is assembled with the screw of the tool rod 31. The outer contour of the sleeve 35 is a tapered sleeve 351. The tapered sleeve 351 is larger at the bottom and smaller at the top and has a taper angle, so that the assembled tool rod 31 can offset part of the axial force generated by the milling hole, and the tool 32 runs smoothly.

[0103] Preferably, the copper sleeve 36 is a cylindrical structure with an inner cone and an outer straightness, including a conical cylinder 361 and a sleeve hole 362. The conical cylinder 361 is assembled on the inner cavity of the worm gear assembly hole 13; the sleeve hole 362 is a conical tube with a larger bottom and a smaller top, which cooperates with the conical sleeve 351. A lubrication groove 363 is provided on the inner wall of the sleeve hole 362 for lubrication and sealing.

[0104] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0105] Since the tapered sleeve 351 of the sleeve 35 has a tapered angle and is larger at the bottom and smaller at the top, when the tool rod 31 and the sleeve 35 are assembled in the worm gear assembly hole 13, the tapered structure of the sleeve 35 can offset part of the axial force generated by the tool 32 milling the hole, so that the tool 32 runs smoothly, safely and reliably.

[0106] In order to further optimize the structure of this embodiment, see the attached Figure 3 , 6 , 7, 11, the feeding mechanism 4 includes a lower baffle 41, an upper baffle 42, a nut seat 43, a bolt assembly 44, a spacer sleeve 45 and a manual feeding mechanism;

[0107] The nut seat 43 includes a nut 431 and a boss 432. The nut 431 is provided in the middle of the nut seat 43 for threaded connection with the lead screw of the knife rod 31. The boss 432 is provided at the lower part of the nut seat 43 for installation and fixation of the nut seat 43.

[0108] The lower baffle plate 41 is a circular pad, and a limiting hole 411 is provided in the middle of the lower baffle plate 41. Four bolt holes 414 are distributed around the limiting hole 411, which is used to be mounted on the outer contour of the top of the worm gear assembly hole 13; three threaded holes 412 are also distributed around the limiting hole 411, and the threaded holes 412 and the bolt holes 414 are located at outer circles of different diameters and are spaced apart from each other, and the threaded holes 412 are used for connecting the bolt assembly 44; a lower rotating shaft hole 413 is provided outside the limiting hole 411 for assembling a manual feeding mechanism;

[0109] The upper baffle plate 42 is a triangular pad, and a nut limiting hole 421 is provided in the middle of the upper baffle plate 42. The nut limiting hole 421 is sleeved on the nut 431 and the boss 432 is pressed tightly; three through holes 422 corresponding to the threaded hole 412 are distributed around the nut limiting hole 421 and are used to connect the bolt assembly 44; an upper rotating shaft hole 423 corresponding to the lower rotating shaft hole 413 is provided on the outer side of the nut limiting hole 421 and is used to assemble the manual feeding mechanism;

[0110] One end of the bolt assembly 44 passes through the through hole 422 of the upper baffle plate 42, and the other end is threadedly connected to the threaded hole 412 of the lower baffle plate 41, thereby connecting and fixing the upper baffle plate 42 and the lower baffle plate 41; a spacer sleeve 45 is mounted on the bolt assembly 44 to separate the upper baffle plate 42 from the lower baffle plate 41, so as to support the upper baffle plate 42 and the lower baffle plate 41 and prevent deformation.

[0111] In order to further optimize the structure of this embodiment, see the attached Figure 1 , 8 , the manual feeding mechanism includes a manual driven gear 46, a manual rotating shaft 47 and a manual driving gear 48;

[0112] The manual driven gear 46 is an external gear, and the nut seat 43 is assembled in the inner cavity of the manual driven gear 46, and the two are located together on the upper part of the upper end cover 38;

[0113] The manual rotating shaft 47 is a stepped shaft, including a wheel shaft 471, a hexagonal 472, an upper shaft shoulder 473 and a lower shaft shoulder 474; the wheel shaft 471 is provided on the manual rotating shaft 47, and the wheel shaft 471 is equipped with a manual driving gear 48 and meshes with the manual driven gear 46; the lower part of the wheel shaft 471 is provided with a lower shaft shoulder 474 for assembling with the lower rotating shaft hole 413 of the lower baffle 41; the upper part of the wheel shaft 471 is provided with an upper shaft shoulder 473 for assembling with the upper rotating shaft hole 423 of the upper baffle 42, so as to The manual driving gear 48 is assembled between the upper baffle plate 42 and the lower baffle plate 41; the manual rotating shaft 47 extends upward through the upper rotating shaft hole 423 and is provided with a hexagonal 472, which is used to use a wrench tool to rotate the manual rotating shaft 47, and then the manual rotating shaft 47 rotates, the manual driving gear 48 and the manual driven gear 46 are meshed with each other for transmission, and the manual driven gear 46 drives the nut 431 to rotate, so that the nut 431 drives the screw of the tool rod 31 to rotate and rise and fall, and the tool 32 can be adjusted for milling hole centering.

[0114] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0115] Since a manual feeding mechanism is provided between the upper baffle plate 42 and the lower baffle plate 41, a hexagonal prism 472 is provided on the upper portion of the manual rotating shaft 47 equipped with a manual driving gear 48; the manual driving gear 48 is meshed with the manual driven gear 46, a nut 431 is installed in the manual driven gear 46, and the nut 431 is threadedly connected to the lead screw of the tool rod 31. Therefore, a wrench is used to drive the manual rotating shaft 47 to rotate, the manual driving gear 48 is meshed with the manual driven gear 46, and the manual driven gear 46 drives the nut 431 to rotate, which can drive the tool 32 on the tool rod 31 to rotate and rise and fall, thereby completing the centering of the milling hole of the tool 32.

[0116] As a conventional technical choice, in this embodiment, the outer circle of the tool rod 31 is opened with a through keyway, a part of the outer circle is processed into a square thread screw, the nut 431 is machined according to its thread, and the axial clearance is less than 0.08mm; the clearance between the outer circle of the tool rod 31 and the sleeve 35 is ground between 0.035 and 0.045mm, and the copper sleeve 36 is pressed into the body 1 with an interference fit of 0.01 to 0.02mm.

[0117] A portable ship flange milling method, using a portable ship flange milling device, includes the following steps:

[0118] First, prepare in advance a base for installing the flange milling device near the flange of the rudder blade and the rudder stock, and fix the body 1 through the limiting base 11;

[0119] Secondly, insert one end of the cutter bar 31 equipped with the cutter 32 into the flange bolt hole, rotate the manual rotation shaft 47 to make the cutter 32 contact the inner wall of the flange bolt hole, and observe whether the cutter bar 31 moves vertically;

[0120] Next, connect the pulley 21 to the power source and test whether the device operates normally;

[0121] Secondly, rotate the manual rotating shaft 47, the tool bar 31 drives the tool to rotate, and observe the contact between the tool 32 and the flange bolt hole. If no iron chips are generated, readjust the tool to directly generate iron chips, so that the tool bar 31 runs to the depth of the flange bolt hole, and repeatedly process until the size of the flange bolt hole meets the requirements;

[0122] Finally, the cutter bar 31 is lifted so that the cutter 32 is disengaged from the flange bolt hole, and the device is disassembled.

[0123] It is worth noting that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of the pulley 21, single-row radial ball bearing 24, single-row tapered roller bearing 26, worm gear 34, nut 431, manual driven gear 46 and manual driving gear 48 are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and are not described here.

[0124] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable ship flange milling device, characterized by: It comprises a machine body (1), a transmission mechanism (2), a cutting mechanism (3) and a feeding mechanism (4); The body (1) is a box structure, which is used to install and fix the device near the rudder blade and the rudder stock flange; The transmission mechanism (2) has a worm shaft (22) mounted on the machine body (1), a pulley (21) is arranged at the outer end of the worm shaft (22) to receive power, and the worm on the worm shaft (22) transmits power; The cutting mechanism (3) comprises a tool rod (31), the tool rod (31) is a lead screw structure, the upper part of which is mounted on the machine body (1) through a sleeve (35), the middle part of which is equipped with a worm wheel (34), the worm wheel (34) and the worm of the worm shaft (22) are staggered and perpendicular and mesh with each other; a tool (32) is mounted at the lower part of the tool rod (31), which is used for milling holes and is locked through a top screw (33); The feeding mechanism (4) has a nut seat (43), the nut seat (43) includes a nut (431) and a boss (432), the nut seat (43) is assembled on the top of the machine body (1) through a lower baffle (41) and an upper baffle (42), the tool rod (31) and the nut (431) are screwed together to realize the feeding of the tool rod (31) and drive the tool (32) to perform milling operations; a manual feeding mechanism is arranged between the lower baffle (41) and the upper baffle (42), which is used to drive the nut (431) and the lead screw of the tool rod (31) to engage with each other and to center the tool (32) in the milling hole.

2. A portable ship flange milling device according to claim 1, characterized in that: A limit base (11) is arranged on the side of the machine body (1), and the limit base (11) is a flange structure, on which bolt holes are arranged for fastening it to a mounting seat near the rudder blade and the rudder stock flange; a horizontal worm assembly hole (12) is arranged in the middle of the machine body (1) for assembling a worm shaft (22); a vertical worm wheel assembly hole (13) is arranged outside the machine body (1) for assembling a knife bar (31), the worm wheel assembly hole (13) and the worm assembly hole (12) are perpendicularly staggered with each other, and a groove (14) is arranged in the middle of the worm wheel assembly hole (13), and the upper part of the groove (14) is open for assembling the worm wheel (34) on the knife bar (31).

3. A portable ship flange milling device according to claim 2, characterized in that: The transmission mechanism (2) comprises a pulley (21), a worm shaft (22), a cantilever seat (23), a single-row radial ball bearing (24), a cantilever seat transparent cover (25), a single-row tapered rolling bearing (26) and a cover (27); The worm shaft (22) is provided with single-row tapered rolling bearings (26) at both ends of the worm and is assembled in the worm assembly hole (12) of the machine body (1). One end of the worm shaft (22) is sealed by a cover (27), and the other end of the worm shaft (22) extends out of the worm assembly hole (12). A cantilever seat (23) is provided on the end surface of the worm assembly hole (12). The cantilever seat (23) is a cylindrical structure, one end of which is connected to the worm assembly hole (12), and the other end of which is provided with a single-row radial ball bearing (24) for supporting the worm shaft (22). The single-row radial ball bearing (24) is sealed in the cantilever seat (23) through a cantilever seat transparent cover (25). A pulley (21) is provided at the end of the worm shaft (22) that passes through the cantilever seat transparent cover (25), and the pulley (21) is connected to a power source.

4. A portable ship flange milling device according to claim 3, characterized in that: The cutting mechanism (3) comprises a cutter bar (31), a cutter (32), a top screw (33), a worm gear (34), a sleeve (35), a copper sleeve (36), a lower end cover (37) and an upper end cover (38); The knife rod (31) is a stepped shaft, with a radial through groove at the bottom. A top screw (33) is axially arranged at the bottom of the knife rod (31), and the top screw (33) extends to the through groove to lock and fix the knife (32) embedded in the through groove; the upper part of the knife rod (31) is a lead screw, which is screwed to a nut (431) at the top of a worm gear assembly hole (13) assembled on the body (1); the sleeve (35) is assembled on the lead screw of the knife rod (31) by key connection, and the upper end is assembled in the worm gear assembly hole (13) through an upper end cover (38) and the lower end is assembled in the worm gear assembly hole (13) through a lower end cover (37); the middle part of the sleeve (35) is assembled with a worm gear (34) and is accommodated in a groove (14) of the body (1); a copper sleeve (36) is arranged between the sleeve (35) and the worm gear assembly hole (13) cavity, wherein the copper sleeve (36) is separated by the worm gear (34) to form an upper and lower section.

5. A portable ship flange milling device according to claim 4, characterized in that: The sleeve (35) is a cylindrical structure with a straight interior and a conical exterior. The inner cavity of the sleeve (35) is a screw hole (352) which is assembled with the screw of the knife rod (31). The outer contour of the sleeve (35) is a tapered sleeve (351). The tapered sleeve (351) is larger at the bottom and smaller at the top and has a tapered angle.

6. A portable ship flange milling device according to claim 5, characterized in that: The copper sleeve (36) is a cylindrical structure with an inner cone and an outer straightness, comprising a conical cylinder (361) and a sleeve hole (362). The conical cylinder (361) is assembled on the inner cavity of the worm gear assembly hole (13); the sleeve hole (362) is a conical tube with a larger bottom and a smaller top, which is matched with the conical sleeve (351), and a lubrication groove (363) is arranged on the inner wall of the sleeve hole (362).

7. A portable ship flange milling device according to claim 6, characterized in that: The feeding mechanism (4) comprises a lower baffle (41), an upper baffle (42), a nut seat (43), a bolt assembly (44), a spacer sleeve (45) and a manual feeding mechanism; The nut seat (43) comprises a nut (431) and a boss (432); a nut (431) is provided in the middle of the nut seat (43) and is threadedly connected to a lead screw of the knife rod (31); a boss (432) is provided at the bottom of the nut seat (43) for mounting and fixing the nut seat (43); The lower baffle plate (41) is a circular pad, a limiting hole (411) is provided in the middle of the lower baffle plate (41), four bolt holes (414) are distributed around the limiting hole (411), and are used to be mounted on the outer contour of the top of the worm gear assembly hole (13); three threaded holes (412) are also distributed around the limiting hole (411), the threaded holes (412) and the bolt holes (414) are located on outer circles of different diameters and are spaced from each other, and the threaded holes (412) are used for connecting the bolt assembly (44); a lower rotating shaft hole (413) is provided outside the limiting hole (411) for assembling a manual feeding mechanism; The upper baffle (42) is a triangular pad, and a nut limiting hole (421) is provided in the middle of the upper baffle (42). The nut limiting hole (421) is sleeved on the nut (431) and the boss (432) is pressed tightly; three through holes (422) corresponding to the threaded hole (412) are distributed around the nut limiting hole (421) and are used to connect the bolt assembly (44); an upper rotating shaft hole (423) corresponding to the lower rotating shaft hole (413) is provided on the outer side of the nut limiting hole (421) and is used to assemble the manual feeding mechanism; One end of the bolt assembly (44) passes through the through hole (422) of the upper baffle (42), and the other end is threadedly connected to the threaded hole (412) of the lower baffle (41), so as to connect and fix the upper baffle (42) and the lower baffle (41); a spacer sleeve (45) is sleeved on the bolt assembly (44) to space and separate the upper baffle (42) and the lower baffle (41).

8. A portable ship flange milling device according to claim 7, characterized in that: The manual feeding mechanism comprises a manual driven gear (46), a manual rotating shaft (47) and a manual driving gear (48); The manual driven gear (46) is an external gear, and the nut seat (43) is assembled in the inner cavity of the manual driven gear (46), and the two are jointly located on the upper part of the upper end cover (38); The manual rotating shaft (47) is a stepped shaft, comprising a wheel shaft (471), a hexagonal portion (472), an upper shaft shoulder (473) and a lower shaft shoulder (474); A wheel shaft (471) is arranged on the manual rotating shaft (47), and the wheel shaft (471) is equipped with a manual driving gear (48) and meshes with the manual driven gear (46); a lower shaft shoulder (474) is arranged at the lower part of the wheel shaft (471) for being assembled with the lower rotating shaft hole (413) of the lower baffle plate (41); an upper shaft shoulder (473) is arranged at the upper part of the wheel shaft (471) for being assembled with the upper rotating shaft hole (423) of the upper baffle plate (42), and the manual driving gear (48) is assembled on the upper baffle plate (42). The manual rotating shaft (47) extends upward through the upper rotating shaft hole (423) and is provided with a hexagonal prism (472) for rotating the manual rotating shaft (47) using a wrench tool. The manual driving gear (48) and the manual driven gear (46) are meshed with each other for transmission. The manual driven gear (46) drives the nut (431) to rotate, and the nut (431) drives the lead screw of the tool rod (31) to rotate and rise and fall, so that the tool (32) can perform milling hole alignment and debugging.

9. A portable ship flange milling method, characterized by: The portable ship flange milling device according to claim 8 comprises the following steps: First, a base for installing the flange milling device is prepared in advance near the flanges of the rudder blade and the rudder stock, and the machine body (1) is fixed by a limiting base (11); Secondly, insert one end of the cutter bar (31) equipped with the cutter (32) into the flange bolt hole, rotate the manual rotation shaft (47) to make the cutter (32) contact the inner wall of the flange bolt hole, and observe whether the cutter bar (31) moves vertically; Next, the pulley (21) is connected to the power source, and a test run is performed to check whether the device operates normally; Next, the manual rotating shaft (47) is rotated, and the tool bar (31) drives the tool to rotate, and the contact between the tool (32) and the flange bolt hole is observed. If no iron chips are generated, the tool needs to be readjusted to directly generate iron chips, so that the tool bar (31) runs toward the depth of the flange bolt hole, and the processing is repeated until the size of the flange bolt hole meets the requirements; Finally, the cutter bar (31) is lifted so that the cutter (32) is disengaged from the flange bolt hole and the device is disassembled.

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