Propeller key groove machining clamping device and using method

Abstract

The invention discloses a propeller key groove machining and clamping device. The propeller key groove machining and clamping device comprises a taper base plate assembly and a clamping and positioning mechanism which are installed on a tray. The clamping and positioning mechanism is matched with the tray for positioning and mounting and is used for clamping and positioning the propeller; the taper base plate assembly is matched with the tray for mounting and is used for adjusting the inclination angle of the propeller; according to the propeller key groove machining clamping device in the technical scheme, a propeller can fall to the correct machining position of the taper cushion block, the working clamp can be adjusted to the proper position more rapidly and accurately through the structure of the clamping positioning mechanism, the working efficiency is greatly improved, and meanwhile the labor intensity of workers is relieved; and meanwhile, the propeller is pressed more stably, the phenomena of deviation and shaking do not occur in the machining process, and the machining quality of the key groove and the operation safety are greatly improved.

Description

Technical Field

[0001] The invention relates to the field of propeller processing, and in particular to a propeller keyway processing clamping device and a use method thereof. Background Art

[0002] A propeller is a device that converts the engine's rotational power into propulsion by rotating blades in the air or water. It may have two or more blades connected to the hub, and the rearward side of the blade is a spiral surface or a propeller that is close to a spiral surface. The propeller is an important component of the power system.

[0003] In the existing propeller keyway processing process, the propeller tapered hole needs to be processed. Since the propeller tapered hole is a tapered structure with a larger upper part and a smaller lower part (or a smaller upper part and a larger lower part) along the axial direction, the tool is processed vertically downward during the slotting process. Therefore, the position of the propeller tapered hole needs to be adjusted to ensure smooth slotting. The existing method is to install the propeller on a pallet and use a pad to adjust it to ensure the processing position of the tapered hole. However, the position of the pad is prone to offset and the structure is prone to deformation. At the same time, the propeller has no special device for clamping and fixing, and its overall structural stability is poor, making processing extremely inconvenient.

[0004] Therefore, in order to solve the above problems, a propeller keyway processing clamping device is needed to solve the above production problems. Summary of the invention

[0005] In view of this, the propeller keyway processing clamping device of the present technical solution is capable of dropping the propeller to the correct processing position of the tapered pad, and the structure of the clamping and positioning mechanism can adjust the working fixture to the appropriate position more quickly and accurately, thereby greatly improving work efficiency and reducing the labor intensity of personnel; at the same time, the propeller is clamped more firmly, and there will be no more deviation and jitter during the processing process, thereby greatly improving the processing quality of the keyway and the safety of operation.

[0006] A propeller keyway processing clamping device comprises a tapered pad assembly installed on a pallet and a clamping positioning mechanism; the clamping positioning mechanism cooperates with the pallet for positioning and clamping and positioning the propeller, and the tapered pad assembly cooperates with the pallet for positioning and adjusting the propeller inclination angle.

[0007] Furthermore, the clamping and positioning mechanism includes a support plate installed in conjunction with the tray, a height rod adjustment assembly installed on the support plate, a positioning pressure ring for clamping the propeller, and a locking rod assembly used in conjunction with the positioning pressure ring; the locking rod assembly is installed in conjunction with the support plate and the height adjustment rod assembly and the end portion is used to clamp the positioning pressure ring.

[0008] Furthermore, the height rod adjustment assembly includes a support sleeve installed on the support plate, an adjusting stud installed in conjunction with the support sleeve, and a positioning nut installed in conjunction with the adjusting stud. The lower end of the adjusting stud is installed in conjunction with the support sleeve, and the positioning nut can be adjustably installed on the upper end of the adjusting stud and is used to support the locking rod assembly.

[0009] Furthermore, the locking rod assembly includes a pressure arm and a locking rod installed on the pressure arm and installed in conjunction with the support plate. One end of the pressure arm is installed in conjunction with the height rod adjustment assembly, and the other end of the pressure arm is tightened in conjunction with the positioning pressure ring.

[0010] Furthermore, a strip groove for installing a locking rod is provided on the pressure arm, a support plate opening for cooperating with the locking rod is provided on the support plate, and the end of the locking rod passes through the strip groove and cooperates with the support plate for positioning and locking.

[0011] Furthermore, a pressure ring slot is provided at the bottom of the positioning pressure ring for cooperating with the positioning installation of the propeller.

[0012] Furthermore, a sleeve support plate which is installed in cooperation with the support plate is formed at the bottom of the support sleeve, and a support plate opening which is installed in cooperation with the support plate for positioning is formed on the sleeve support plate.

[0013] Furthermore, the tapered pad assembly includes a pad body and a pad positioning block arranged at the end of the pad body, a propeller positioning hole is opened in the middle of the pad body, and the pad positioning block is inserted in cooperation with the tray.

[0014] Furthermore, the pad body is in the shape of a rectangular parallelepiped as a whole, and the upper surface of the pad block body forms an inclined angle with respect to the lower surface of the pad block body.

[0015] A method for using a propeller keyway processing clamping device comprises the following steps:

[0016] S1: Install the tapered pad assembly on the pallet, ensure that the pad positioning block at the end of the pad body is installed in the pallet positioning groove, lift the propeller and install it on the pad body, ensure that the keyway that needs to be processed after the propeller is installed is in the appropriate position, and lock the pad body;

[0017] S2: Install the support plate on the pallet, and at the same time, fix the support sleeve on the end of the support plate and lock it, insert the adjusting stud into the supporting sleeve and install the positioning nut on the upper end of the adjusting stud;

[0018] S3: Install the positioning pressure ring on the upper end of the propeller, rotate and adjust the positioning pressure ring so that the propeller fits the groove of the pressure ring for installation, and install the pressure arm so that the two ends of the pressure arm are respectively installed on the upper surface of the positioning nut and the upper surface of the positioning pressure ring;

[0019] S4: Adjust the installation height of the positioning nut so that the pressure arm is arranged parallel to the surface of the pallet, and use a locking rod to pass through the support plate and the pressure arm for locking.

[0020] The beneficial effects of the present invention are as follows: the propeller keyway processing clamping device of the technical solution can drop the propeller to the correct processing position of the tapered pad, and the structure of the clamping and positioning mechanism can adjust the working fixture to the appropriate position more quickly and accurately, thereby greatly improving work efficiency and reducing the labor intensity of personnel; at the same time, the propeller is pressed more firmly, and there will be no deviation and jitter during the processing process, which greatly improves the processing quality of the keyway and the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation side of the present invention;

[0024] Figure 3 It is a schematic diagram of the pad body of the present invention;

[0025] Figure 4 It is a schematic diagram of the support sleeve of the present invention;

[0026] Figure 5 It is a schematic diagram of the adjusting stud of the present invention;

[0027] Figure 6 This is a schematic diagram of the bottom of the positioning pressing ring of the present invention;

[0028] Figure 7 For the present invention Figure 2 Schematic diagram at point A in the middle. DETAILED DESCRIPTION

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation side of the present invention; Figure 3 It is a schematic diagram of the pad body of the present invention; Figure 4 It is a schematic diagram of the support sleeve of the present invention; Figure 5 It is a schematic diagram of the adjusting stud of the present invention; Figure 6 This is a schematic diagram of the bottom of the positioning pressing ring of the present invention; Figure 7 For the present invention Figure 2Schematic diagram at point A in the middle; as shown in the figure, a propeller keyway processing clamping device includes a tapered pad assembly 8 installed on a pallet 10 and a clamping and positioning mechanism; the clamping and positioning mechanism cooperates with the pallet 10 to position and install and clamp and position the propeller 7, and the tapered pad assembly cooperates with the pallet 10 to install and is used to adjust the propeller inclination angle; the propeller keyway processing clamping device of the present technical solution, the propeller can be dropped to the correct processing position of the tapered pad, and the structure of the clamping and positioning mechanism can adjust the work fixture to the appropriate position more quickly and accurately, which greatly improves work efficiency and reduces the labor intensity of personnel; at the same time, the propeller is pressed more firmly, and there will be no deviation and jitter during the processing process, so that the processing quality of the keyway and the safety of operation are greatly improved.

[0030] In this embodiment, the clamping and positioning mechanism includes a support plate 9 installed in conjunction with the tray 10, a height rod adjustment assembly installed on the support plate 9, a positioning ring 1 for pressing the propeller 7, and a locking rod assembly used in conjunction with the positioning ring 1; the locking rod assembly is installed in conjunction with the support plate 9 and the height adjustment rod assembly, and the end of the locking rod assembly is used to press the positioning ring 1. The support plate 9 is fixedly installed in conjunction with the tray 10, the height adjustment rod assembly is installed on the support plate 9, and the locking rod assembly is used to press the positioning ring 1. The positioning ring 1 presses the propeller 7 to ensure the stability of the overall structural installation. Figure 1 , 2 As shown, at least two groups of support plates 9 and height rod adjustment components are provided accordingly to ensure that the overall structure is balanced in force and that stability is guaranteed.

[0031] In this embodiment, the height rod adjustment assembly includes a support sleeve 6 installed on the support plate 9, an adjustment stud 5 installed in cooperation with the support sleeve 6, and a positioning nut 4 installed in cooperation with the adjustment stud 5. The lower end of the adjustment stud 5 is installed in cooperation with the support sleeve 6, and the positioning nut 4 is adjustably installed on the upper end of the adjustment stud and is used to support the locking rod assembly. The support sleeve 6 is fixedly installed in cooperation with the support plate 9. The support sleeve 6 is a cylindrical structure as a whole. The lower end of the adjustment stud 5 is inserted into the support sleeve 6, and the upper end of the adjustment stud 5 is installed in cooperation with the positioning nut 4. The upper end surface of the positioning nut 4 is installed in cooperation with the pressure arm 2. When height adjustment is required, the height adjustment of the pressure arm 2 can be achieved by rotating the installation height of the positioning nut.

[0032] In this embodiment, the locking rod assembly includes a pressure arm 2 and a locking rod 3 installed on the pressure arm 2 and installed in conjunction with the support plate 9. One end of the pressure arm 2 is installed in conjunction with the height rod adjustment assembly, and the other end of the pressure arm 2 is tightened in conjunction with the positioning ring 1. The two ends of the pressure arm 2 are respectively installed in conjunction with the positioning ring 1 and the positioning nut 4. Of course, corresponding positioning holes can be opened on the lower surface of the pressure arm 2 to facilitate positioning and installation in conjunction with the positioning nut 4, thereby improving installation accuracy and making the overall structural stability higher.

[0033] In this embodiment, the pressure arm 2 is provided with a strip groove for installing the locking rod 3, and the support plate 9 is provided with a support plate opening for installing the locking rod 3. The end of the locking rod 3 passes through the strip groove and is positioned and locked with the support plate 9. The support plate 9 is provided with a plurality of support plate openings, which are evenly distributed along the length direction. The corresponding pressure arm 2 is provided with a strip groove. After the locking rod 3 selects the corresponding position, it passes through the strip groove and the support plate opening to be locked so that it has a pre-tightening force in the axial direction, thereby ensuring the stability of the overall structure.

[0034] In this embodiment, the bottom of the positioning ring 1 is provided with a ring slot for positioning and installing the propeller 7. Figure 6 As shown, an arc groove structure is provided on the lower surface of the positioning pressure ring 1. The arc groove is provided with different curvatures to facilitate installation with propeller blades of different specifications, so that its positioning and installation accuracy is higher, and its rotation is avoided during processing. Of course, the arc grooves can be provided in groups of two or more and arranged in rotational symmetry with respect to the center of the positioning pressure ring 1, which is convenient for blade installation. The lower surface of the pressure arm 2 (the contact end with the positioning pressure ring 1) can be provided with a criss-cross groove structure or a rubber pad can be installed, etc., to further enhance the friction between the positioning pressure ring 1 and the clamping effect.

[0035] In this embodiment, a sleeve support plate 61 is formed at the bottom of the support sleeve 6 to match the support plate, and a support plate opening is provided on the sleeve support plate 61 to match the support plate for positioning and installation. The support sleeve 6 and the sleeve support plate 61 can be welded or integrally formed, and the support plate opening provided on the sleeve support plate 61 matches the support plate 9 for bolt locking.

[0036] In this embodiment, the tapered pad assembly 8 includes a pad body and a pad positioning block 81 disposed at the end of the pad body, a propeller positioning hole is provided in the middle of the pad body, and the pad positioning block is inserted in conjunction with the pallet 10. After the pad positioning block 81 at the end of the pad body is inserted into the strip groove on the pallet 10, it is fixed to the pallet through the positioning opening 82 provided on the pad body using bolts in conjunction with the gasket 11.

[0037] In this embodiment, the pad body is in the shape of a rectangular parallelepiped as a whole, and the upper surface of the pad body forms an inclined angle with respect to the lower surface of the pad body. Figure 3 As described, the pad body is a rectangular block structure as a whole, with a mounting hole in the middle, and is installed in conjunction with the propeller. The upper surface of the pad body has a certain inclination angle relative to the lower surface, that is, the thickness of the left end a of the pad is greater than the thickness of the right end b of the pad, so that after the propeller is installed, its axis has a certain inclination angle relative to the vertical direction, which is convenient for mechanical processing. Of course, when the angle needs to be fine-tuned, a gasket can be installed on the upper surface of the pad body to fine-tune the angle, thereby improving the processing accuracy of the overall structure.

[0038] A method for using a propeller keyway processing clamping device comprises the following steps:

[0039] S1: Install the tapered pad assembly on the pallet 10, ensure that the pad positioning block 81 at the end of the pad body is installed in the pallet positioning groove, lift the propeller 7 and install it on the pad body, ensure that the keyway that needs to be processed after the propeller is installed is in the appropriate position, and lock the pad body; after the tapered pad assembly is installed on the pallet, install the propeller on the pad and adjust the position. If there is a deviation in the installation position, fine-tune it by using gaskets or other methods on the pad to make its installation position consistent with the processing position, and then position and lock it.

[0040] S2: Install the support plate 9 on the tray 10, and at the same time, fix the support sleeve 6 on the end of the support plate 9 and lock it, insert the adjusting stud 5 into the support sleeve, and install the positioning nut 4 on the upper end of the adjusting stud 5; after the support sleeve 6 and the adjusting stud 5 are installed in place, install the positioning nut on the adjusting stud;

[0041] S3: Install the positioning pressing ring 1 on the upper end of the propeller, rotate and adjust the positioning pressing ring 1 so that the propeller fits in with the slot of the pressing ring, and install the pressing arm 2 so that the two ends of the pressing arm 2 are respectively installed on the upper surface of the positioning nut and the upper surface of the positioning pressing ring; after the positioning pressing ring 1 is installed on the propeller blade, rotate and adjust it so that the upper end of the blade fits in with the slot of the pressing ring to ensure the installation stability, observe that the blade is installed in place, and install the pressing arm;

[0042] S4: Adjust the installation height of the positioning nut 4 so that the pressure arm is arranged parallel to the surface of the tray, and use the locking rod 3 to pass through the support plate and the pressure arm for locking. Adjust the height of the positioning nut so that the pressure arm is in a parallel position relative to the tray 10, and then use the locking rod 3 to lock it.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A propeller keyway processing clamping device, characterized in that: It comprises a tapered pad assembly installed on a pallet and a clamping and positioning mechanism; the clamping and positioning mechanism is installed in cooperation with the pallet for positioning and clamping the propeller for positioning; the tapered pad assembly is installed in cooperation with the pallet for adjusting the inclination angle of the propeller.

2. The propeller keyway processing clamping device according to claim 1, characterized in that: The clamping and positioning mechanism includes a support plate installed in conjunction with the tray, a height rod adjustment assembly installed on the support plate, a positioning pressure ring for clamping the propeller, and a locking rod assembly used in conjunction with the positioning pressure ring; the locking rod assembly is installed in conjunction with the support plate and the height adjustment rod assembly and the end portion is used to clamp the positioning pressure ring.

3. The propeller keyway processing clamping device according to claim 2, characterized in that: The height rod adjustment assembly includes a support sleeve installed on a support plate, an adjustment stud installed in cooperation with the support sleeve, and a positioning nut installed in cooperation with the adjustment stud. The lower end of the adjustment stud is installed in cooperation with the support sleeve, and the positioning nut is adjustably installed on the upper end of the adjustment stud and is used to support the locking rod assembly.

4. The propeller keyway processing clamping device according to claim 2, characterized in that: The locking rod assembly includes a pressure arm and a locking rod installed on the pressure arm and installed in conjunction with a support plate. One end of the pressure arm is installed in conjunction with a height rod adjustment assembly, and the other end of the pressure arm is tightened in conjunction with a positioning pressure ring.

5. The propeller keyway processing clamping device according to claim 4, characterized in that: The pressure arm is provided with a strip groove for installing a locking rod, the support plate is provided with a support plate opening for fitting the locking rod, and the end of the locking rod passes through the strip groove and fits the support plate for positioning and locking.

6. The propeller keyway processing clamping device according to claim 2, characterized in that: The bottom of the positioning pressure ring is provided with a pressure ring slot for cooperating with the propeller in positioning installation.

7. The propeller keyway machining clamping device according to claim 3, characterized in that: A sleeve support plate which is installed in cooperation with the support plate is formed at the bottom of the support sleeve, and a support plate opening which is installed in cooperation with the support plate for positioning is formed on the sleeve support plate.

8. The propeller keyway processing clamping device according to claim 1, characterized in that: The tapered pad assembly comprises a pad body and a pad positioning block arranged at the end of the pad body. A propeller positioning hole is opened in the middle of the pad body, and the pad positioning block is inserted in cooperation with the tray.

9. The propeller keyway machining clamping device according to claim 8, characterized in that: The pad body is in a rectangular parallelepiped shape as a whole, and the upper surface of the pad block body forms an inclined angle with respect to the lower surface of the pad block body.

10. A method for using the propeller keyway processing clamping device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Install the tapered pad assembly on the pallet, ensure that the pad positioning block at the end of the pad body is installed in the pallet positioning groove, lift the propeller and install it on the pad body, ensure that the keyway that needs to be processed after the propeller is installed is in the appropriate position, and lock the pad body; S2: Install the support plate on the pallet, and at the same time, fix the support sleeve on the end of the support plate and lock it, insert the adjusting stud into the supporting sleeve and install the positioning nut on the upper end of the adjusting stud; S3: Install the positioning pressure ring on the upper end of the propeller, rotate and adjust the positioning pressure ring so that the propeller fits the groove of the pressure ring for installation, and install the pressure arm so that the two ends of the pressure arm are respectively installed on the upper surface of the positioning nut and the upper surface of the positioning pressure ring; S4: Adjust the installation height of the positioning nut so that the pressure arm is arranged parallel to the surface of the pallet, and use a locking rod to pass through the support plate and the pressure arm for locking.

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