Paddle tooling turnover mechanism and its sizing method, device and method of use thereof

Abstract

The application discloses a paddle tool turnover mechanism and a size setting method and device thereof and a use method thereof. The paddle tool turnover mechanism comprises a horizontal support, a telescopic driving device, a first rotating shaft, a second rotating shaft, a third rotating shaft, a paddle front bracket, a fourth rotating shaft and a triangular hinged connecting piece. The paddle front bracket can be turned over to be parallel to the horizontal support by the extension of the telescopic driving device. The paddle front bracket can be turned over to be completely flat and horizontal, and the turning process of the paddle front bracket is stable, so that the paddle tool can be quickly withdrawn.

Description

Technical Field

[0001] This application relates to the field of shipbuilding tooling technology, specifically to a propeller tooling overturning mechanism and its dimensional setting method, and a marine propeller installation device and its usage method. Background Technology

[0002] In the shipbuilding tooling industry, the installation of propellers has gradually abandoned traditional methods using tools such as hoists, rigging, and clamps. Instead, a unified platform is used for high-precision propeller installation, leading to the development of new stern-mounted work platforms. After propeller installation, the platform needs to be removed. However, due to the large diameter of the propeller, if the platform is simply returned along the same route, the propeller nose bracket will interfere with the propeller blades. To solve this problem, the traditional method is to "re-lay the track," see... Figure 1 First, the original track used to feed the propeller tooling is removed. Then, the track is rotated 90° and laid on the ground. Next, the universal rollers on the base are rotated 90° to match the track. Finally, the entire tooling is removed along the new track. This method requires a lot of manpower and affects installation efficiency.

[0003] Therefore, how to design a mechanism that allows the propeller tool to be easily withdrawn directly along its original path is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This application provides a propeller tooling tilting mechanism and its size setting method, a marine propeller installation device and its usage method, aiming to solve the technical problem of low installation efficiency caused by the need to re-lay tracks when traditional propeller tools are removed.

[0005] This application provides a paddle tooling tilting mechanism, including:

[0006] Horizontal support;

[0007] The telescopic drive device is fixedly mounted on the horizontal support;

[0008] A first rotating shaft is disposed at the first end of the telescopic drive device;

[0009] The second rotating shaft is disposed at the second end of the telescopic drive device;

[0010] The third rotating shaft is disposed on the second end of the horizontal support adjacent to the telescopic drive device;

[0011] The propeller front bracket is rotatably connected at its end to the third rotating shaft; the propeller front bracket is used to fix the propeller fixture.

[0012] The fourth rotating shaft is located at the end of the propeller front bracket and is arranged adjacent to the third rotating shaft;

[0013] A triangular hinged connector, with its first angle rotatably connected to the third rotating shaft, its second angle rotatably connected to the second rotating shaft, and its third angle rotatably connected to the fourth rotating shaft; the extension of the telescopic drive device can control the paddle front bracket to flip vertically from the horizontal support to the paddle front bracket being parallel to the horizontal support.

[0014] Furthermore, the extension length of the telescopic drive device can stretch the triangular hinge connector to rotate along the third rotation axis, and the triangular hinge connector causes the paddle front bracket to rotate at an angle between 0 degrees and 90 degrees relative to the horizontal support.

[0015] Furthermore, the triangular hinge connector is a right-angled triangle structure, and the first angle of the triangular hinge connector is a right angle.

[0016] This application also provides a method for setting the dimensions of the aforementioned paddle tooling tilting mechanism, which includes:

[0017] The steps for defining the parameters of the flipping mechanism are as follows: define the first rotation axis as point A, the second rotation axis as point B, the third rotation axis as point C, and the fourth rotation axis as point D; connect points A and C to form the x-axis, and with point A as the origin, form the y-axis perpendicular to the x-axis; define the distance between points A and B as l1, the distance between points B and C as l2, the distance between points A and C as l3, define the angle ∠BAC as θ1, define the angle ∠BCx as θ2, and define the complementary angle between line segments AB and BC as the transmission angle θ3;

[0018] The steps for constructing the parametric relationship are as follows: θ2 represents the angle of the propeller front bracket. When l1 changes, θ1 and θ3 are intermediate variables, and θ2 changes accordingly. This one-to-one correspondence is as follows:

[0019]

[0020] The steps for setting the flip angle range are as follows: Based on the working requirements of the propeller fixture, the front bracket of the propeller needs to flip at an angle of 90°, which must meet the following requirements: θ 2,min With θ 2,max These represent θ2 as it moves from l1 during the mechanism's motion. 1,min Change to l 1,max The minimum and maximum values ​​at time t are expressed as:

[0021]

[0022] The steps for setting the transmission angle expression are as follows: the smaller the transmission angle θ3, the better the transmission performance; therefore, θ needs to be minimized.3,max It represents θ3 as l1 moves from l during the mechanism's motion. 1,min Change to l 1,max The maximum value at time θ 3,max The expression is:

[0023]

[0024] The normalization parameters are defined as x1, x2, x3, and x4; the normalization parameters are as follows:

[0025]

[0026] The step of introducing the average transmission ratio is introduced. The average transmission ratio η represents the ratio of the output displacement to the input displacement of the mechanism. The smaller η is, the lower the sensitivity of the output displacement to the input displacement. The expression for the average transmission ratio η is:

[0027]

[0028] The steps for constructing an optimization model of the paddle tool tilting mechanism under normalized parameters are as follows: Among them, constraint (b) ensures that the stroke of the telescopic drive device is positive, and constraint (e) is to form a triangle;

[0029] Based on the optimization model of the paddle tooling overturning mechanism, the optimal solution ranges for calculating component lengths are determined by calculating the distance l1 between point A and point B and the distance l2 between point B and point C, based on the distance l3 between point A and point C.

[0030] The method for setting the dimensions of the paddle tooling tilting mechanism as described in claim 4, characterized in that the step of calculating the component length based on the optimized model of the paddle tooling tilting mechanism includes:

[0031] The steps to calculate the optimized parameters are as follows:

[0032] The step of obtaining the scaling factor involves specifying a dimensional value for a parameter to obtain the scaling factor, and then multiplying the scaling factor by other dimensionless parameters to obtain the final dimensional parameter.

[0033] Furthermore, the step of obtaining the scaling factor includes:

[0034] Based on installation environment or processing conditions, specify

[0035] Obtain the scaling factor Δ:

[0036] Calculate the dimensional values ​​of other parameters:

[0037] Furthermore, in the step of obtaining the scaling factor, the specified The resulting scaling factor Δ is: The dimensional values ​​of other parameters are:

[0038]

[0039] This application also provides a marine propeller mounting device, which includes the propeller tooling tilting mechanism described above.

[0040] Furthermore, the marine propeller mounting device also includes a horizontal rail, and the horizontal support of the propeller tooling tilting mechanism is movably mounted on the horizontal rail.

[0041] This application also provides a method of using a marine propeller mounting device, which includes:

[0042] A horizontal track is provided, and the aforementioned paddle tooling tilting mechanism is movably installed on the horizontal track.

[0043] The propeller front bracket is set perpendicular to the horizontal support, the propeller front bracket is fixed with a propeller fixture, and the propeller blade is installed on the propeller fixture;

[0044] Control the propeller front bracket to flip from a state perpendicular to the horizontal support to a state parallel to the horizontal support, so that the propeller front bracket is set horizontally;

[0045] Flip the propeller front bracket until it is parallel to the horizontal support;

[0046] The propeller tooling tilting mechanism is driven to move along the horizontal track to transfer the propeller tooling with the blades installed.

[0047] The propeller tooling flipping mechanism and its size setting method, marine propeller installation device and its usage method provided in this application embodiment enable the propeller front bracket to be flipped to a completely flat horizontal state, and ensure that the propeller front bracket is stable during the flipping process, allowing the propeller tooling to be quickly removed. Attached Figure Description

[0048] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0049] Figure 1 This is a structural diagram of the traditional paddle removal method.

[0050] Figure 2 This is a schematic diagram of the marine propeller mounting device provided in the embodiment of this application under the condition of use.

[0051] Figure 3 This is a schematic diagram of the paddle tooling flipping mechanism provided in an embodiment of this application.

[0052] Figure 4 The three positions of the paddle tooling flipping mechanism provided in the embodiments of this application are shown in the simplified diagram of the mechanism.

[0053] Figure 5 A flowchart illustrating the method for setting the dimensions of the paddle tooling flipping mechanism provided in this application embodiment.

[0054] Figure 6 A parameter diagram illustrating the steps for defining the flipping mechanism in the application embodiment.

[0055] Figure 7 A flowchart illustrating the method of using the marine propeller mounting device provided in this application embodiment. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0059] Such as background technology content Figure 1 The process involves first removing the original track used to feed the paddle fixture, then rotating the track 90° and laying it on the ground. Next, the universal rollers on the base are rotated 90° to align with the track, and finally, the entire fixture is removed along the new track. This method requires significant manpower and reduces installation efficiency.

[0060] To allow for quick removal of the propeller assembly, the propeller front bracket 6 is designed to be flip-up, see... Figure 2 When the tooling needs to be removed, the drive flipping mechanism is activated, causing the propeller front bracket 6 to rotate around the S-axis, so that the propeller front bracket 6 lies completely flat. At this time, the propeller tooling can be directly "retracted along the original path" and the propeller front bracket 6 will not interfere with the propeller blade.

[0061] like Figure 3 As shown, this application embodiment provides a paddle tooling tilting mechanism, including: a horizontal support 1, a telescopic drive device 2, a first rotating shaft 3, a second rotating shaft 4, a third rotating shaft 5, a paddle front bracket 6, a fourth rotating shaft 7, and a triangular hinged connector 8. The telescopic drive device 2 is fixedly mounted on the horizontal support 1; the telescopic drive device 2 is fixed along the extension direction of the horizontal support 1; the first rotating shaft 3 is located at the first end of the telescopic drive device 2; the second rotating shaft 4 is located at the second end of the telescopic drive device 2; the third rotating shaft 5 is located on the second end of the horizontal support 1 adjacent to the second end of the telescopic drive device 2; the end of the propeller front bracket 6 is rotatably connected to the third rotating shaft 5; the propeller front bracket 6 is used to fix the propeller fixture; the fourth rotating shaft 7 is located at the end of the propeller front bracket 6 and is adjacent to the third rotating shaft 5; the first corner of the triangular hinge connector 8 is rotatably connected to the third rotating shaft 5, its second corner is rotatably connected to the second rotating shaft 4, and its third corner is rotatably connected to the fourth rotating shaft 7; the extension of the telescopic drive device 2 can control the propeller front bracket 6 to flip perpendicular to the horizontal support 1 until the propeller front bracket 6 is parallel to the horizontal support 1.

[0062] Furthermore, the extension length of the telescopic drive device 2 can stretch the triangular hinge connector 8 to rotate along the third rotation axis 5, and the triangular hinge connector 8 drives the paddle front bracket 6 to rotate at an angle between 0 degrees and 90 degrees relative to the horizontal support 1.

[0063] Furthermore, the triangular hinge connector 8 has a right-angled triangle structure, and the first angle of the triangular hinge connector 8 is a right angle.

[0064] It is understood that the paddle tooling tilting mechanism is R P RR mechanism, where "R" represents a revolute joint. P" " indicates a sliding joint, and the underscore "_" indicates that the sliding joint is driven. The planar RPRR mechanism allows the propeller front bracket 6 to be flipped to a completely flat horizontal position.

[0065] After the propeller fixture is installed in place, the propeller front bracket 6 is moved from the vertical position (i.e., 0°) by the tilting mechanism. Figure 4 a) Flip to a horizontal position (i.e., 90°, see...) Figure 4 c) After flipping into position, the entire propeller fixture can be directly removed, and the propeller front bracket 6 will not interfere with the propeller blade. See the simplified diagram for the three positions of the flipping mechanism and their corresponding mechanisms. Figure 4 It can be seen that the essence of the flipping mechanism is a planar R P The RR mechanism has one degree of freedom, where "R" represents a revolute joint, "P" represents a prismatic joint, and the underscore "_" indicates that the kinematic joint is driven. Figure 4 In the diagram, R1, R2, and R3 represent revolute joints, with their center points at A, B, and C, respectively. The joint between R1 and R2 is a prismatic joint. P .

[0066] like Figure 5 As shown, this application also provides a method for setting the dimensions of the aforementioned paddle tooling tilting mechanism, which includes:

[0067] S1. Define the parameters of the flipping mechanism, see [link / details]. Figure 6 Define the first rotation axis 3 as point A, the second rotation axis 4 as point B, the third rotation axis 5 as point C, and the fourth rotation axis 7 as point D; connect points A and C to form the x-axis, and with point A as the origin, form the y-axis perpendicular to the x-axis; define the distance between points A and B as l1, the distance between points B and C as l2, the distance between points A and C as l3, define the angle ∠BAC as θ1, define the angle ∠BCx as θ2, and define the complementary angle between line segments AB and BC as the transmission angle θ3;

[0068] S2. In the step of constructing the parameter relationship, θ2 represents the angle of the propeller front bracket 6. When l1 changes, θ1 and θ3 are intermediate variables, and θ2 changes accordingly. This one-to-one correspondence is as follows:

[0069]

[0070] S3. Setting the flip angle range: Based on the working requirements of the propeller fixture, the propeller front bracket 6 needs to flip at an angle of 90°, which must meet the following requirements: θ 2,min With θ 2,max These represent θ2 as it moves from l1 during the mechanism's motion. 1,min Change to l 1,maxThe minimum and maximum values ​​at time t are expressed as:

[0071]

[0072] S4. Steps for setting the transmission angle expression: The smaller the transmission angle θ3, the better the transmission performance; θ needs to be minimized. 3,max It represents θ3 as l1 moves from l during the mechanism's motion. 1,min Change to l 1,max The maximum value at time θ 3,max The expression is:

[0073] S5. Define normalization parameters including x1, x2, x3, and x4; the normalization parameters are as follows:

[0074]

[0075] S6. Introducing the average transmission ratio step: The average transmission ratio η represents the ratio of the mechanism's output displacement to its input displacement. The smaller η is, the lower the sensitivity of the output displacement to the input displacement. The expression for the average transmission ratio η is:

[0076] The steps for constructing an optimization model of the paddle tool tilting mechanism under normalized parameters are as follows: Among them, constraint (b) is to ensure that the stroke of the telescopic drive device 2 is positive, and constraint (e) is to form a triangle;

[0077] S7. Calculate the component length based on the optimization model of the paddle tooling overturning mechanism. Based on the distance l3 between point A and point C, calculate the optimal solution range for the distance l1 between point A and point B and the distance l2 between point B and point C.

[0078] Furthermore, the step of calculating the component length based on the optimized model of the paddle tooling tilting mechanism includes:

[0079] The steps to calculate the optimized parameters are as follows:

[0080] The step of obtaining the scaling factor involves specifying a dimensional value for a parameter to obtain the scaling factor, and then multiplying the scaling factor by other dimensionless parameters to obtain the final dimensional parameter.

[0081] Furthermore, the step of obtaining the scaling factor includes:

[0082] Based on installation environment or processing conditions, specify

[0083] Obtain the scaling factor Δ:

[0084] Calculate the dimensional values ​​of other parameters:

[0085] To convert dimensionless parameters of a formula into dimensional parameters, it is necessary to first specify the dimensional value of one parameter to obtain a scaling factor. Then, the scaling factor is multiplied by the other dimensionless parameters to obtain the final dimensional parameters. For example, depending on factors such as the installation environment or processing conditions, the scaling factor may be specified in the step of obtaining the scaling factor. The resulting scaling factor Δ is: The dimensional values ​​of other parameters are:

[0086] The above-mentioned method for setting the dimensions of the paddle tooling tilting mechanism optimizes the plane R. P The mechanics parameters of RR can be used to obtain the dimensions of the tilting mechanism with the "minimum transmission angle" and "minimum average transmission ratio", ensuring that the paddle front bracket 6 is stable during the tilting process.

[0087] Please see Figure 2 This application also provides a marine propeller mounting device, which includes the propeller tooling tilting mechanism described above.

[0088] Furthermore, the marine propeller mounting device also includes a horizontal rail, and the horizontal support 1 of the propeller tooling tilting mechanism is movably mounted on the horizontal rail.

[0089] like Figure 7 As shown, this application also provides a method of using a marine propeller mounting device, which includes:

[0090] S10. Set a horizontal track, and movably set the paddle tool turning mechanism described above on the horizontal track.

[0091] S20. The propeller front bracket 6 is set perpendicular to the horizontal support 1, the propeller front bracket 6 is fixed with a propeller fixture, and the propeller blade is installed on the propeller fixture.

[0092] S30. Control the propeller front bracket 6 to flip from a state perpendicular to the horizontal support 1 to a state parallel to the horizontal support 1, so that the propeller front bracket 6 is set horizontally.

[0093] S40. Flip the propeller front bracket 6 until it is parallel to the horizontal support 1.

[0094] S50. Drive the propeller tooling tilting mechanism to move along the horizontal track to transfer the propeller tooling with the installed blades.

[0095] The propeller tooling flipping mechanism and its size setting method, marine propeller installation device and its usage method provided in this application embodiment enable the propeller front bracket to be flipped to a completely flat horizontal state, and ensure that the propeller front bracket is stable during the flipping process, allowing the propeller tooling to be quickly removed.

[0096] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0097] The foregoing has provided a detailed description of a propeller tooling overturning mechanism and its size setting method, a marine propeller installation device and its usage method provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A paddle tool tilting mechanism, characterized in that, include: Horizontal support; The telescopic drive device is fixedly mounted on the horizontal support; A first rotating shaft is disposed at the first end of the telescopic drive device; The second rotating shaft is disposed at the second end of the telescopic drive device; The third rotating shaft is disposed on the second end of the horizontal support adjacent to the telescopic drive device; The propeller front bracket is rotatably connected at its end to the third rotating shaft; the propeller front bracket is used to fix the propeller fixture. The fourth rotating shaft is located at the end of the propeller front bracket and is arranged adjacent to the third rotating shaft; A triangular hinged connector, with its first angle rotatably connected to the third rotating shaft, its second angle rotatably connected to the second rotating shaft, and its third angle rotatably connected to the fourth rotating shaft; the extension of the telescopic drive device can control the paddle front bracket to flip vertically from the horizontal support to the paddle front bracket being parallel to the horizontal support.

2. The paddle tooling tilting mechanism as described in claim 1, characterized in that, The extension length of the telescopic drive device can stretch the triangular hinge connector to rotate along the third rotation axis, and the triangular hinge connector causes the paddle front bracket to rotate at an angle between 0 degrees and 90 degrees relative to the horizontal support.

3. The paddle tooling tilting mechanism as described in claim 1, characterized in that, The triangular hinge connector has a right-angled triangle structure, and the first angle of the triangular hinge connector is a right angle.

4. A method for setting the dimensions of the paddle tooling tilting mechanism according to any one of claims 1 to 3, characterized in that, include: The steps for defining the parameters of the flipping mechanism are as follows: define the first rotation axis as point A, the second rotation axis as point B, the third rotation axis as point C, and the fourth rotation axis as point D; connect points A and C to form the x-axis, and with point A as the origin, form the y-axis perpendicular to the x-axis; define the distance between points A and B as l1, the distance between points B and C as l2, the distance between points A and C as l3, define the angle ∠BAC as θ1, define the angle ∠BCx as θ2, and define the complementary angle between line segments AB and BC as the transmission angle θ3; The steps for constructing the parametric relationship are as follows: θ2 represents the angle of the propeller front bracket. When l1 changes, θ1 and θ3 are intermediate variables, and θ2 changes accordingly. This one-to-one correspondence is as follows: The steps for setting the flip angle range are as follows: Based on the working requirements of the propeller fixture, the propeller front bracket needs to flip at an angle of 90°, which must meet the following requirements: θ 2,min With θ 2,max These represent θ2 as it moves from l1 during the mechanism's motion. 1,min Change to l 1,max The minimum and maximum values ​​at time t are expressed as: The steps for setting the transmission angle expression are as follows: the smaller the transmission angle θ3, the better the transmission performance; therefore, θ needs to be minimized. 3,max It represents θ3 as l1 moves from l during the mechanism's motion. 1,min Change to l 1,max The maximum value at time θ 3,max The expression is: The steps to define normalization parameters are as follows: Define normalization parameters x1, x2, x3, and x4; the normalization parameters are as follows: The step of introducing the average transmission ratio is introduced. The average transmission ratio η represents the ratio of the output displacement to the input displacement of the mechanism. The smaller η is, the lower the sensitivity of the output displacement to the input displacement. The expression for the average transmission ratio η is: The steps for constructing an optimization model of the paddle tool tilting mechanism under normalized parameters are as follows: Among them, constraint (b) ensures that the stroke of the telescopic drive device is positive, and constraint (e) is to form a triangle; Based on the optimization model of the paddle tooling overturning mechanism, the optimal solution ranges for calculating component lengths are determined by calculating the distance l1 between point A and point B and the distance l2 between point B and point C, based on the distance l3 between point A and point C.

5. The method for setting the dimensions of the paddle tooling tilting mechanism as described in claim 4, characterized in that, The step of calculating the component length based on the optimized model of the paddle tooling tilting mechanism includes: The steps to calculate the optimized parameters are as follows: The step of obtaining the scaling factor involves specifying a dimensional value for a parameter to obtain the scaling factor, and then multiplying the scaling factor by other dimensionless parameters to obtain the final dimensional parameter.

6. The method for setting the dimensions of the paddle tooling tilting mechanism as described in claim 5, characterized in that, The step of obtaining the scaling factor includes: Based on installation environment or processing conditions, specify Obtain the scaling factor Δ: Calculate the dimensional values ​​of other parameters:

7. The method for setting the dimensions of the paddle tooling tilting mechanism as described in claim 6, characterized in that, In the step of obtaining the scaling factor, specify The resulting scaling factor Δ is: The dimensional values ​​of other parameters are:

8. A marine propeller mounting device, characterized in that, Includes the paddle tooling tilting mechanism as described in any one of claims 1 to 3.

9. The marine propeller mounting device as described in claim 8, characterized in that, The marine propeller mounting device also includes a horizontal rail, and the horizontal support of the propeller tooling tilting mechanism is movably mounted on the horizontal rail.

10. A method of using a marine propeller mounting device, characterized in that, include: A horizontal track is provided, and the paddle tooling tilting mechanism according to any one of claims 1 to 3 is movably provided on the horizontal track; The propeller front bracket is set perpendicular to the horizontal support, the propeller front bracket is fixed with a propeller fixture, and the propeller blade is installed on the propeller fixture; Control the propeller front bracket to flip from a state perpendicular to the horizontal support to a state parallel to the horizontal support, so that the propeller front bracket is set horizontally; Flip the propeller front bracket until it is parallel to the horizontal support; The propeller tooling tilting mechanism is driven to move along the horizontal track to transfer the propeller tooling with the blades installed.

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