Special tool and method for machining rudder shaft

Abstract

The invention discloses a special tool for machining a rudder shaft and a method of the special tool, and relates to the technical field of clamps, the special tool comprises a main clamping module, the main clamping module comprises a clamping disc, a first clamping groove is formed in the clamping disc, a shaft body of the rudder shaft penetrates through the first clamping groove, a clamping body is installed in the first clamping groove in a hinged mode, and a second clamping groove is formed in the clamping body. The inner side of the clamping body is tightly attached to a shaft body of a rudder shaft, a clamping ball is rotationally connected into the clamping body, a clamping rod is embedded in the clamping ball, the top end of the clamping rod penetrates through a clamping disc and extends to the outer end of the clamping disc, the clamping rod is movably connected with the clamping disc, and the clamping rod is movably connected with the clamping disc. The device is suitable for clamping of an optical shaft, a stepped shaft or an irregular rudder shaft with a shaft body.

Description

Technical Field

[0001] The invention belongs to the technical field of clamps, and in particular relates to a special tool for processing a ship rudder shaft and a method thereof. Background Art

[0002] The rudder is an important component for controlling the direction and steering of the ship. It has very important applications in ship transportation and marine engineering. It can control the heading direction of the ship so that the ship can travel smoothly on the water. The working principle of the rudder is mainly based on the resistance of seawater and the principle of hydrodynamics. When the rudder is controlled by the control mechanism and the angle of the rudder blade changes, the seawater will produce a reverse resistance. This reverse resistance can change with the change of the rudder blade angle. This reverse resistance will produce a steering torque, thereby helping the ship to change the direction of travel. In this way, the heading direction of the ship can be changed according to the change of the rudder blade angle. Its basic components include the rudder body, rudder shaft, tiller and control mechanism. The rudder shaft is another key component related to the rudder on the ship. Its function is to connect the rudder blade to the keel structure of the ship, so as to control the direction of the ship. The rudder shaft is usually made of steel pipe or cast steel pipe. The rudder is related to the safety of the ship's travel and the operational performance of the ship.

[0003] For example, the Chinese invention patent document with the publication number CN112207592B discloses a multi-process, multi-workpiece, dual-station fixture for a rudder shaft, which solves the problems of strict dimensional tolerance requirements and high surface roughness requirements for existing rudder shaft workpieces, high processing difficulty, easy production of defective products, frequent need for rework, and long processing time. At present, there is no fixture that can process workpieces in multiple sequences on a three-axis device at the same time. It includes a clamp body, a first positioning pin shaft, a second positioning pin shaft, an inner groove plug, a U-shaped pressure plate, a first pressure plate connector, a step pressure plate, and a second pressure plate connector; the side walls on both sides of the through groove are processed with a first step bevel and a second step bevel in sequence, and the two ends of the through groove bottom are symmetrically processed with two first pin shaft positioning holes, each rudder shaft bevel workpiece to be processed is arranged on the bevel of the second step bevel along the length direction of the clamp body, and each rudder shaft bevel workpiece to be processed is provided with a plurality of step pressure plates.

[0004] For another example, a Chinese patent document with publication number CN219189391U discloses a processing and positioning fixture for a rudder shaft, which includes a fixture table, a mounting plate is arranged on the other side of the fixture table, two groups of drive motors are symmetrically distributed on the mounting plate, a second connecting piece is arranged at the output end of the drive motor, the drive motor is connected to a left and right screw rods through the second connecting piece, and a first screw nut and a second screw nut are respectively sleeved on both sides of the left and right screw rods; a connecting plate is connected to the first screw nut and the second screw nut, a first limit plate and a second limit plate are linearly arranged on the top of the mounting plate, the two ends of the first limit plate and the second limit plate are respectively connected to multiple groups of connecting plates, and a clamping plate is arranged on the first limit plate and the second limit plate.

[0005] Most of the existing processing tools for processing rudder shafts are designed for clamping rudder shafts with smooth shaft bodies. It is difficult to ensure the clamping force of the rudder shaft when clamping irregular shaft bodies such as stepped shafts. At the same time, since the rudder shaft has a certain length, the clamping balance affects the quality of subsequent drilling, grinding and other processing of the rudder shaft. Therefore, it is necessary to design a tool specifically for rudder shaft processing that can clamp rudder shafts with stepped shafts or irregular shaft bodies at the same time. Summary of the invention

[0006] In view of the above problems in the prior art, an object of the present invention is to provide a special tool for processing a rudder shaft, which is suitable for clamping a rudder shaft whose shaft body is a smooth shaft, a stepped shaft or an irregular shaft.

[0007] The present invention provides the following technical solutions: A special tooling for processing a rudder shaft comprises a main clamping module, wherein the main clamping module comprises a clamping disc, wherein the clamping disc is provided with a clamping groove, wherein the shaft body of the rudder shaft passes through the clamping groove, wherein a clamping body is hingedly installed in the clamping groove, wherein the inner side of the clamping body tightly fits the shaft body of the rudder shaft, wherein a clamping ball is rotatably connected in the clamping body, wherein a clamping rod is embedded and installed on the clamping ball, wherein the top end of the clamping rod passes through the clamping disc and extends to the outer end of the clamping disc, and the clamping rod and the clamping disc are movably connected.

[0008] As a further technical solution, a connecting groove is provided at the top of the clamping sphere, the bottom end of the clamping rod is connected to the connecting groove, an embedded groove is provided in the clamping sphere, a spherical groove is provided at the top of the clamping body, the bottom of the clamping sphere is located in the spherical groove, a rotating shaft is movably installed on the clamping sphere, and the spherical grooves are fixedly connected to both ends of the rotating shaft.

[0009] As a further technical solution, an extension portion is provided on the clamping body, one end of the extension portion extends into the spherical groove, and a sliding portion is installed at one end of the extension portion, and the sliding portion is located in the embedded groove.

[0010] As a further technical solution, the embedded groove consists of a large groove and an inner concave cavity, the large groove and the inner concave cavity are connected, the longest distance from the top of the large groove to the bottom of the inner concave cavity is greater than the maximum length of the sliding part, the depth of the inner concave cavity is less than the length of the sliding part, and the outer end length of the large groove is greater than the length of the sliding part.

[0011] As a further technical solution, an anti-skid portion is installed at the bottom of the clamping body, and the bottom end of the anti-skid portion is in close contact with the shaft body of the rudder shaft.

[0012] As a further technical solution, the main clamping module is installed on a mounting plate, threaded holes are provided at four corners of the mounting plate, end auxiliary modules are installed at both ends of the mounting plate, and the end auxiliary modules are connected to the main clamping module.

[0013] As a further technical solution, the end auxiliary module includes large gear one and large gear two, a supporting long rod is connected between large gear one and large gear two, a clamping disc slides through the supporting long rod, a square groove is provided at the top of the mounting plate, a screw is rotatably installed in the square groove, a driving part is connected to one end of the screw, two moving blocks are threadedly connected to the screw, the two moving blocks are respectively located on both sides of the clamping disc, and one side of the moving block is in contact with the clamping disc, a clamping groove two is provided on the other side of the clamping disc, the clamping groove two is communicated with the clamping groove one, the diameter of the clamping groove two is smaller than the diameter of the clamping groove one, a sliding disc is threadedly connected to the supporting long rod, outer gears are evenly distributed on the clamping disc, the outer gear is sleeved on the clamping rod, a rack is fan-shapedly installed on the sliding disc, and the rack is meshed with the outer gear.

[0014] As a further technical solution, the large gear one and the large gear two are respectively located at the two ends of the mounting plate, and two wedge-shaped blocks are symmetrically installed at both ends of the mounting plate. The top of the wedge-shaped blocks are in active contact with the large gear one and the large gear two. End notches are opened at both ends of the mounting plate, and the end notches are located between the two wedge-shaped blocks. The driving part is located in one of the end notches, and a motor is installed in the other end notch. A small gear is sleeved on one end of the motor, and the small gear is meshed with the large gear two. A connecting disk is fixedly installed on one side of the mounting plate, and a short shaft is rotatably connected to the connecting disk. A balancing pole is passed through the short shaft, and both ends of the balancing pole are connected to the inner ring of the large gear two.

[0015] As a further technical solution, a plurality of electric slide rails are symmetrically installed on the mounting plate, the electric slide rails are located at both ends of the rudder shaft, an electric slider is installed on the electric slide rails, the moving direction of the electric slider is perpendicular to the rudder shaft, a moving block is installed on the electric slider, and a card slot is opened on the moving block.

[0016] A method for processing a special tool for a rudder shaft, comprising the following steps: Step 1: The driving unit drives the screw to rotate, and the moving block moves linearly along the screw. During the process, the clamping disc is driven by the moving block to move linearly on the supporting long rod.

[0017] Step 2: The rudder shaft with a smooth shaft (longer length) and only one clamping disc installed: One end of the shaft body diameter is passed through the clamping groove 1 and the clamping groove 2, and the clamping rod is inward or outward relative to the clamping disc, so that the clamping body fits the shaft body of the rudder shaft, and the electric slider moves on the electric slide rail, so that the moving block moves toward the rudder shaft, and the inner side of the clamping groove fits the rudder shaft; Clamping of a rudder shaft with a stepped shaft (longer length) and only one clamping disc installed: One end of the shaft body diameter is passed through the clamping groove 1 and the clamping groove 2 until the step surface abuts against the step surface of the clamping groove 1 and the clamping groove 2, and the clamping rod is moved inward or outward relative to the clamping disc, so that the clamping body fits the shaft body of the rudder shaft, and the electric slider moves on the electric slide rail, so that the moving block moves toward the rudder shaft, and the inner side of the clamping groove fits the rudder shaft; Clamping of an irregular rudder shaft with multiple clamping discs installed: Pass one end of the shaft body through the clamping groove 1 and the clamping groove 2, and the clamping rod is inward or outward relative to the clamping disc, so that the clamping body fits the shaft body of the rudder shaft. During this process, the clamping body automatically rotates or swings according to the shape of the shaft body of the rudder shaft (the sliding part rotates or swings slightly in the embedded groove) to completely fit the shaft body of the rudder shaft. Step 3: The motor works, the output end of the motor is connected to the small gear, the small gear rotates, and the large gear 2 is driven to rotate slowly through the small gear. At this time, the short shaft rotates with the large gear 2. As the large gear 2 rotates, the clamping disc and the large gear 1 rotate together through the supporting long rod.

[0018] The beneficial effects of the present invention are: The sliding part of the clamping body is in contact with the groove wall of the embedded groove and rotates slightly. The sliding part can swing along the arc track of the embedded groove, so it is suitable for clamping the rudder shaft with an irregular shaft body. The clamping body can rotate itself to adjust the position so as to fit the shaft body of the rudder shaft, so as to achieve the purpose of clamping the rudder shaft with a smooth shaft or an irregular shaft body at the same time, and can also clamp the rudder shaft with a stepped shaft body; The embedded groove is composed of a large groove and an inner concave cavity to prevent the clamping body from separating from the clamping sphere and ensure the stability of the clamping structure; An anti-skid portion is installed at the bottom of the clamping body to ensure the reliability of the contact point, prevent the contact surface between the rudder shaft and the clamping body from changing when subjected to external force, and improve the clamping effect and processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 The overall axonometric structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall axonometric structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the cross-sectional structure of the clamping disc of the present invention; Figure 4 It is a schematic diagram of the installation relationship between the clamping body and the clamping ball of the present invention; Figure 5 It is a structural schematic diagram of the clamping body of the present invention swinging relative to the clamping sphere; Figure 6 It is a schematic diagram of the cross-sectional structure of the clamping body of the present invention; Figure 7 It is a schematic cross-sectional structure diagram of a clamping ball of the present invention; Figure 8 It is a schematic diagram of the installation structure of the supporting long rod and the clamping disc in the third embodiment of the present invention; Fig. 9 It is a schematic diagram of the top view of the structure of installing multiple clamping discs according to the present invention.

[0020] The markings in the figure are: 100, mounting plate; 101, end notch; 102, threaded hole; 103, wedge block; 104, square groove; 200, end auxiliary module; 201, large gear one; 202, supporting long rod; 203, large gear two; 204, balance force rod; 205, short shaft; 206, connecting disc; 207, small gear; 208, motor; 300, main clamping module; 301, clamping disc; 302, clamping groove one; 303, moving block; 304, screw; 305. Clamping rod; 306. Clamping sphere; 307. Clamping body; 308. Embedded groove; 3081. Large groove; 3082. Inner concave cavity; 309. Connecting groove; 310. Extension part; 311. Spherical groove; 312. Sliding part; 313. Rotating shaft; 314. Anti-slip part; 315. Sliding disk; 316. Rack; 317. Outer gear; 400. Auxiliary clamping module; 401. Electric slide rail; 402. Electric slider; 403. Moving block; 404. Slot. DETAILED DESCRIPTION

[0021] like Figure 1As shown, the present invention provides a special tooling for processing a rudder shaft, including a main clamping module 300, the main clamping module 300 includes a clamping disc 301, a clamping groove 302 is provided in the clamping disc 301, the shaft body of the rudder shaft passes through the clamping groove 302, the main clamping module 300 is installed on a mounting plate 100, and threaded holes 102 are provided at four corners of the mounting plate 100. The threaded holes 102 are provided to facilitate the connection between the mounting plate 100 and the processing equipment, and to facilitate the installation and disassembly of the special tooling, and the rudder shaft is passed through the clamping disc 301, and the clamping disc 301 performs limiting support and fixation on the rudder shaft.

[0022] Embodiment 1 like Figure 3 As shown, a clamping body 307 is hingedly installed in a clamping groove 302, and the inner side of the clamping body 307 is tightly fitted to the shaft body of the rudder shaft. The clamping body 307 is in direct contact with the rudder shaft to achieve clamping and fixation of the rudder shaft. A clamping ball 306 is rotatably connected in the clamping body 307, and a clamping rod 305 is embedded and installed on the clamping ball 306. The top end of the clamping rod 305 passes through the clamping disc 301 and extends to the outer end of the clamping disc 301. The clamping rod 305 and the clamping body 307 are connected through the clamping ball 306. The clamping rod 305 and the clamping disc 301 are movably connected, and the clamping rod 305 rotates and moves linearly relative to the clamping disc 301.

[0023] Specifically, Figure 4 As shown, a connection groove 309 is provided at the top of the clamping sphere 306, and the bottom end of the clamping rod 305 is connected to the connection groove 309. When the clamping rod 305 is subjected to external force, the clamping rod 305 rotates relative to the clamping sphere 306. In order to realize the movable connection between the clamping body 307 and the clamping sphere 306, an embedded groove 308 is provided in the clamping sphere 306. Figure 4-Figure 6 As shown, a spherical groove 311 is provided at the top of the clamping body 307, and the bottom of the clamping sphere 306 is located in the spherical groove 311. An extension portion 310 is provided on the clamping body 307, and one end of the extension portion 310 extends into the spherical groove 311, and a sliding portion 312 is installed at one end of the extension portion 310, and the sliding portion 312 is located in the embedded groove 308. During operation, when the clamping body 307 contacts the rudder shaft, the clamping body 307 is subjected to the squeezing force of the rudder shaft. First, the sliding portion 312 rotates slightly along the groove wall of the embedded groove 308, and secondly, the sliding portion 312 can swing along the arc trajectory of the embedded groove 308, so that it is suitable for clamping the rudder shaft with an irregular shaft body. The clamping body 307 can rotate itself to adjust its position so as to fit the shaft body of the rudder shaft, thereby achieving the purpose of clamping the smooth axis or the rudder shaft with an irregular shaft body at the same time.

[0024] Furthermore, if Figure 7As shown, the embedded groove 308 is composed of a large groove 3081 and an inner concave cavity 3082. The large groove 3081 and the inner concave cavity 3082 are connected. The longest distance from the top of the large groove 3081 to the bottom of the inner concave cavity 3082 is greater than the maximum length of the sliding portion 312. The depth of the inner concave cavity 3082 is less than the length of the sliding portion 312. The outer end length of the large groove 3081 is greater than the length of the sliding portion 312.

[0025] The purpose of providing the large groove 3081 and the inner concave cavity 3082 is to prevent the clamping body 307 from being separated from the clamping ball 306 during the rotation or swinging process. Figure 5 As shown, the clamping body 307 is in a swinging state. At this time, the top of the sliding portion 312 on one side of the clamping body 307 is tightly fitted with the inner top of the large groove 3081, and its bottom end is located in the inner concave cavity 3082. That is, when the clamping body 307 swings to the extreme position relative to the clamping sphere 306, the sliding portion 312 plays a blocking role to ensure the reliable connection between the clamping sphere 306 and the clamping body 307.

[0026] Furthermore, a rotating shaft 313 is movably installed on the clamping ball 306 , and both ends of the rotating shaft 313 are fixedly connected with spherical grooves 311 .

[0027] In order to facilitate the rotation of the clamping body 307 relative to the clamping sphere 306, an arc-shaped channel is opened in the clamping body 307, and both ends of the rotating shaft 313 are located in the arc-shaped channel so that the sliding part 312 can rotate slightly against the groove wall of the embedded groove 308, ensuring that the clamping sphere 306 and the clamping body 307 are installed and connected reliably.

[0028] An anti-slip portion 314 is installed at the bottom of the clamping body 307, and the bottom end of the anti-slip portion 314 is in close contact with the shaft body of the rudder shaft. The purpose of setting the anti-slip portion 314 is to ensure the reliability of the contact point and prevent the contact surface between the rudder shaft and the clamping body 307 from changing when subjected to external force, thereby affecting the clamping effect and processing quality.

[0029] like Figure 2 and Figure 3 As shown, a clamping groove 2 is provided on the other side of the clamping disc 301, and the clamping groove 2 is connected to the clamping groove 1 302. The diameter of the clamping groove 2 is smaller than the diameter of the clamping groove 1 302, and the structure of the clamping groove 2 is the same as the structure in the clamping groove 1 302, so that the tooling is suitable for the installation of the rudder shaft with a stepped shaft body.

[0030] During operation, a single or multiple clamping discs 301 (such as Fig. 9 As shown), when multiple clamping discs 301 are installed, segmented clamping support and fixation can be achieved to ensure the stability of the rudder shaft; Clamping of the rudder shaft with a stepped shaft: pass one end of the shaft through the clamping groove 1 302 and the clamping groove 2 until the stepped surface abuts against the step surfaces of the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is inward or outward relative to the clamping disc 301, so that the clamping body 307 fits the shaft body of the rudder shaft; Clamping of the rudder shaft with the shaft body as the optical axis: pass one end of the shaft body through the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is inward or outward relative to the clamping disc 301, so that the clamping body 307 fits the shaft body of the rudder shaft. In this process, multiple clamping rods 305 move synchronously, thereby ensuring the centering of the rudder shaft clamping; Clamping of a rudder shaft with an irregular shaft body: pass one end of the shaft body through the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is inward or outward relative to the clamping disk 301, so that the clamping body 307 fits the shaft body of the rudder shaft. During this process, the clamping body 307 automatically rotates or swings according to the shape of the shaft body of the rudder shaft (the sliding part 312 rotates or swings slightly in the embedded groove 308) to completely fit the shaft body of the rudder shaft.

[0031] Embodiment 2 On the basis of the above-mentioned embodiment 1, in order to further realize the rotation and linear movement of the clamping disc 301, as Figure 1 As shown, end auxiliary modules 200 are installed at both ends of the mounting plate 100 , and the end auxiliary modules 200 are connected to the main clamping module 300 , and the rotation of the main clamping module 300 is realized through the end auxiliary modules 200 .

[0032] like Figure 1 and Figure 2 As shown, the end auxiliary module 200 includes a large gear 1 201 and a large gear 2 203, a supporting long rod 202 is connected between the large gear 1 201 and the large gear 2 203, a clamping disc 301 slides through the supporting long rod 202, and the large gear 1 201, the clamping disc 301 and the large gear 2 203 are connected together through the supporting long rod 202, the large gear 1 201 and the large gear 2 203 are respectively located at both ends of the mounting plate 100, and two wedge blocks 103 are symmetrically installed at both ends of the mounting plate 100, the top of the wedge block 103 is in active contact with the large gear 1 201 and the large gear 2 203, and an upward supporting force is provided to the large gear 1 201 and the large gear 2 203 through the wedge block 103.

[0033] End notches 101 are provided at both ends of the mounting plate 100, and the end notches 101 are located between the two wedge-shaped blocks 103, providing extra space for the rotation of large gear 1 201 and large gear 2 203. The driving part is located in one of the end notches 101, and a motor 208 is installed in the other end notch 101. A small gear 207 is sleeved on one end of the motor 208, and the small gear 207 is meshed with the large gear 203. A connecting disc 206 is fixedly installed on one side of the mounting plate 100, and a short shaft 205 is rotatably connected to the connecting disc 206. A balancing pole 204 runs through the short shaft 205, and both ends of the balancing pole 204 are connected to the inner circle of large gear 2 203.

[0034] Specifically, during the processing of the rudder shaft, it is necessary to realize the rotation of the rudder shaft itself. At this time, the motor 208 is working, and the output end of the motor 208 is connected to the small gear 207. The small gear 207 rotates, and the large gear 2 203 is driven to rotate slowly through the small gear 207. At this time, the short shaft 205 rotates with the large gear 2 203. Due to the rotation of the large gear 203, the clamping disk 301 and the large gear 1 201 are rotated together through the supporting long rod 202.

[0035] Embodiment 3 On the basis of the above-mentioned embodiment 2, when a plurality of clamping discs 301 are mounted on the mounting plate 100, in order to facilitate the adjustment of the positions of the plurality of clamping discs 301, a structure for driving the clamping discs 301 to move linearly is installed on the mounting plate 100, such as Figure 1 and Figure 2 As shown, a square groove 104 is opened at the top of the mounting plate 100, and a screw rod 304 is rotatably installed in the square groove 104. One end of the screw rod 304 is connected to a driving part, and two moving blocks 303 are threadedly connected to the screw rod 304. The two moving blocks 303 are respectively located on both sides of the clamping disk 301, and one side of the moving block 303 is in contact with the clamping disk 301.

[0036] During operation, the screw rod 304 is driven to rotate by the driving unit, and the moving block 303 moves linearly along the screw rod 304 . During the process, the clamping disc 301 is driven to move linearly on the supporting long rod 202 by the moving block 303 .

[0037] At the same time, if Figure 8 As shown, a sliding plate 315 is threadedly connected to the supporting long rod 202, and outer gears 317 are evenly distributed on the clamping disc 301. The outer gear 317 is sleeved on the clamping rod 305. A rack 316 is fan-shapedly installed on the sliding plate 315, and the rack 316 and the outer gear 317 are meshed. When working, the sliding plate 315 is manually moved linearly on the supporting long rod 202, and the clamping rod 305 is rotated through the meshing of the rack 316 and the outer gear 317. The clamping rod 305 makes a rotational linear movement relative to the clamping disc 301, thereby clamping the rudder shaft.

[0038] When only one clamping disc 301 is mounted on the mounting plate 100, as shown in FIG. Figure 1 and Figure 2 As shown, a plurality of electric slide rails 401 are symmetrically installed on the mounting plate 100, and the electric slide rails 401 are located at both ends of the rudder shaft. An electric slider 402 is installed on the electric slide rails 401, and the moving direction of the electric slider 402 is perpendicular to the rudder shaft. A moving block 403 is installed on the electric slider 402, and a slot 404 is provided on the moving block 403. The electric slider 402 moves on the electric slide rails 401 to move the moving block 403 toward the rudder shaft, thereby providing auxiliary support for the rudder shaft and ensuring the stability of the clamping of the rudder shaft with a longer length.

[0039] A method for processing a special tool for a rudder shaft, comprising the following steps: The rudder shaft with a smooth shaft (longer length) and only one clamping disc installed: One end of the shaft body is passed through the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is inward or outward relative to the clamping disc 301, so that the clamping body 307 fits the shaft body of the rudder shaft, and the electric slider 402 moves on the electric slide rail 401, so that the moving block 403 moves toward the rudder shaft, and the inner side of the clamping groove 404 fits the rudder shaft; Clamping of a rudder shaft with a stepped shaft (longer length) and only one clamping disc installed: One end of the shaft body diameter is passed through the clamping groove 1 302 and the clamping groove 2 until the stepped surface abuts against the stepped surface of the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is moved inward or outward relative to the clamping disc 301, so that the clamping body 307 fits the shaft body of the rudder shaft, and the electric slider 402 moves on the electric slide rail 401, so that the moving block 403 moves toward the rudder shaft, and the inner side of the clamping groove 404 fits the rudder shaft; Clamping of an irregular rudder shaft with multiple clamping discs installed: One end of the shaft body is passed through the clamping groove 1 302 and the clamping groove 2, and the clamping rod 305 is inward or outward relative to the clamping disc 301, so that the clamping body 307 fits the shaft body of the rudder shaft. During this process, the clamping body 307 automatically rotates or swings according to the shape of the shaft body of the rudder shaft (the sliding part 312 rotates or swings slightly in the embedded groove 308) to completely fit the shaft body of the rudder shaft. For the rotation of the main clamping module 300, that is, the rotation of the clamped rudder shaft itself, the motor 208 works, the output end of the motor 208 is connected to the small gear 207, the small gear 207 rotates, and the large gear 2 203 is driven to rotate slowly through the small gear 207. At this time, the short shaft 205 rotates with the large gear 2 203. Due to the rotation of the large gear 2 203, the clamping disc 301 and the large gear 1 201 are rotated together through the supporting long rod 202; For the movement of the main clamping module 300 , the clamping position is determined, the driving unit drives the screw rod 304 to rotate, and the moving block 303 moves linearly along the screw rod 304 . During the process, the moving block 303 drives the clamping disc 301 to move linearly on the supporting long rod 202 .

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special tool for processing a rudder shaft, characterized in that: The main clamping module (300) comprises a clamping disc (301), a clamping groove (302) is provided in the clamping disc (301), the shaft of the rudder shaft passes through the clamping groove (302), a clamping body (307) is hingedly installed in the clamping groove (302), the inner side of the clamping body (307) is tightly fitted with the shaft of the rudder shaft, a clamping ball (306) is rotatably connected in the clamping body (307), a clamping rod (305) is embedded and installed on the clamping ball (306), the top end of the clamping rod (305) passes through the clamping disc (301) and extends to the outer end of the clamping disc (301), the clamping rod (305) and the clamping disc (301) are movably connected, and the clamping ball A connecting groove (309) is provided at the top of the clamping rod (305), the bottom end of the clamping rod (305) is connected to the connecting groove (309), an embedded groove (308) is provided in the clamping ball (306), a spherical groove (311) is provided at the top of the clamping body (307), the bottom of the clamping ball (306) is located in the spherical groove (311), a rotating shaft (313) is movably installed on the clamping ball (306), and the two ends of the rotating shaft (313) are fixedly connected to the spherical groove (311), an extension part (310) is provided on the clamping body (307), one end of the extension part (310) extends into the spherical groove (311), and a sliding part (312) is installed at one end of the extension part (310), and the sliding part (312) is located in the embedded groove (308).

2. The special tool for processing a rudder shaft according to claim 1, characterized in that: The embedded groove (308) is composed of a large groove (3081) and an inner concave cavity (3082); the large groove (3081) and the inner concave cavity (3082) are connected to each other; the longest distance from the top of the large groove (3081) to the bottom of the inner concave cavity (3082) is greater than the maximum length of the sliding portion (312); the depth of the inner concave cavity (3082) is less than the length of the sliding portion (312); and the outer end length of the large groove (3081) is greater than the length of the sliding portion (312).

3. The special tool for processing a rudder shaft according to any one of claims 1 to 2, characterized in that: An anti-skid portion (314) is installed at the bottom of the clamping body (307), and the bottom end of the anti-skid portion (314) is in close contact with the shaft body of the rudder shaft.

4. The special tool for processing a rudder shaft according to claim 1, characterized in that: The main clamping module (300) is mounted on a mounting plate (100), threaded holes (102) are provided at four corners of the mounting plate (100), end auxiliary modules (200) are mounted at both ends of the mounting plate (100), and the end auxiliary modules (200) are connected to the main clamping module (300).

5. The special tool for processing a ship rudder shaft according to claim 4, characterized in that: The end auxiliary module (200) comprises a large gear 1 (201) and a large gear 2 (203), a supporting long rod (202) is connected between the large gear 1 (201) and the large gear 2 (203), a clamping disc (301) slides through the supporting long rod (202), a square groove (104) is provided at the top of the mounting plate (100), a screw rod (304) is rotatably installed in the square groove (104), one end of the screw rod (304) is connected to a driving unit, two moving blocks (303) are threadedly connected to the screw rod (304), and the two moving blocks (303) are respectively located on the clamping disc (30 1) on both sides, and one side of the moving block (303) is in contact with the clamping disc (301), and the other side of the clamping disc (301) is provided with a clamping groove 2, the clamping groove 2 is communicated with the clamping groove 1 (302), and the diameter of the clamping groove 2 is smaller than the diameter of the clamping groove 1 (302), the supporting long rod (202) is threadedly connected with a sliding disc (315), the clamping disc (301) is evenly provided with outer gears (317), the outer gears (317) are sleeved on the clamping rod (305), and a rack (316) is installed on the sliding disc (315) in a fan shape, and the rack (316) and the outer gear (317) are meshed.

6. The special tool for processing a ship rudder shaft according to claim 5, characterized in that: The large gear one (201) and the large gear two (203) are respectively located at two ends of the mounting plate (100), two wedge-shaped blocks (103) are symmetrically installed at the two ends of the mounting plate (100), the top ends of the wedge-shaped blocks (103) are in active contact with the large gear one (201) and the large gear two (203), end notches (101) are opened at both ends of the mounting plate (100), the end notch (101) is located between the two wedge-shaped blocks (103), and the driving part is located in one of the end notches (101). A motor (208) is installed in the other end notch (101), a small gear (207) is sleeved on one end of the motor (208), the small gear (207) is meshed with the large gear 2 (203), a connecting disc (206) is fixedly installed on one side of the mounting plate (100), a short shaft (205) is rotatably connected to the connecting disc (206), a balancing pole (204) passes through the short shaft (205), and both ends of the balancing pole (204) are connected to the inner ring of the large gear 2 (203).

7. The special tool for processing a ship rudder shaft according to claim 6, characterized in that: A plurality of electric slide rails (401) are symmetrically mounted on the mounting plate (100), the electric slide rails (401) being located at both ends of the rudder shaft, an electric slider (402) being mounted on the electric slide rails (401), the moving direction of the electric slider (402) being perpendicular to the rudder shaft, a moving block (403) being mounted on the electric slider (402), and a card slot (404) being provided on the moving block (403).

8. A method for processing a special tool for a rudder shaft according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, the driving unit drives the screw rod (304) to rotate, and the moving block (303) moves linearly along the screw rod (304). During the process, the moving block (303) drives the clamping disc (301) to move linearly on the supporting long rod (202); S2, the shaft body is a smooth shaft, the length of the rudder shaft is relatively long and only one clamping disc is installed: One end of the shaft body is passed through the clamping groove 1 (302) and the clamping groove 2, and the clamping rod (305) is moved inward or outward relative to the clamping disc (301) so that the clamping body (307) fits the shaft body of the rudder shaft, and the electric slider (402) moves on the electric slide rail (401) so that the moving block (403) moves toward the rudder shaft, and the inner side of the clamping groove (404) fits the rudder shaft; Clamping for stepped shafts, long rudder shafts and only one clamping disc: One end of the shaft body diameter is passed through the clamping groove 1 (302) and the clamping groove 2 until the stepped surface abuts against the stepped surfaces of the clamping groove 1 (302) and the clamping groove 2, the clamping rod (305) is moved inward or outward relative to the clamping disc (301), so that the clamping body (307) fits the shaft body of the rudder shaft, the electric slider (402) moves on the electric slide rail (401), so that the moving block (403) moves toward the rudder shaft, and the inner side of the clamping groove (404) fits the rudder shaft; Clamping of an irregular rudder shaft with multiple clamping discs installed: One end of the shaft body is passed through the clamping groove 1 (302) and the clamping groove 2, and the clamping rod (305) is inward or outward relative to the clamping disc (301), so that the clamping body (307) fits the shaft body of the rudder shaft. During this process, the clamping body (307) automatically rotates or swings according to the shape of the shaft body of the rudder shaft, and the sliding part (312) rotates or swings slightly in the embedded groove (308) to completely fit the shaft body of the rudder shaft. S3, the motor (208) works, the output end of the motor (208) is connected to the small gear (207), the small gear (207) rotates, and the large gear 2 (203) is driven to rotate slowly through the small gear (207). At this time, the short shaft (205) rotates together with the large gear 2 (203). As the large gear 2 (203) rotates, the clamping disc (301) and the large gear 1 (201) rotate together through the supporting long rod (202).

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