An auxiliary pressing device for a fan blade locking nut

Abstract

The utility model belongs to the technical field of compression assembly, and disclose a kind of auxiliary compression device for fan blade locking nut, including base, the side of base is fixedly connected with control box, the other side of base is fixedly connected with support plate, the top of support plate is fixedly connected with upper plate by a pair of three-axis cylinder, under the mutual cooperation of inclined top vertical pole, slide post, catch tooth cover and storage grid etc. Structure, can automatically rotate workpiece equidistant displacement, when slide post extrudes inclined top vertical pole and slides out catch tooth cover, inclined top vertical pole rotates slightly to the catch tooth position of catch tooth cover, at this time, start three-axis cylinder and push upper plate to move to the position of preliminary positioning, then, under the action of the catch tooth inclined surface part of catch tooth cover, drive shaft as a whole rotates until inclined top vertical pole reaches the next limit in catch tooth cover Catch groove, workpiece is rotated equidistantly by last drive shaft, without manually rotating workpiece by staff, ensure that processing visual angle is consistent, effectively improve processing quality.

Description

Technical Field

[0001] This utility model belongs to the field of clamping and assembly technology, specifically an auxiliary clamping device for a fan blade locking nut. Background Technology

[0002] The main purpose of the fan blade locking nut is to ensure a reliable and stable connection between the fan blade and the shaft end. By using an auxiliary clamping device, the fan blade can be automatically clamped during the process of locking the fan blade nut, avoiding manual pinching of the fan blade, reducing the amount of deformation of the fan blade after locking the nut, avoiding the problem of manual injury, and improving product quality, production efficiency and product life.

[0003] A quick-connect assembly for assembling a fan blade, disclosed in prior art document CN112431792A, includes an adjustment mechanism, an expansion mechanism, a locking nut, and a fan blade knob. The adjustment mechanism and the expansion mechanism are coaxially sleeved together. A drive device is inserted through the inner cavity of the adjustment mechanism. The drive device includes a drive shaft for rotation. An integral step portion is provided on the upper part of the outer wall of the drive shaft. A threaded section is provided at the top of the drive shaft. The adjustment mechanism and the expansion mechanism are fitted to the upper surface of the step portion. A locking nut that is screwed into the threaded section is tightly fitted to the top of the adjustment mechanism. The adjustment mechanism and the expansion mechanism are positioned between the fan blade and the drive shaft. The screwing in of the locking nut causes the rotating plate to arch, thereby causing the floating block to move outward. The evenly distributed floating block is pressed against the inner wall of the fan blade mounting hole for lateral fixation. At the same time, the fan blade knob, in conjunction with the step portion, provides longitudinal fixation. This device is easy to assemble for various fan blades and is simple and quick to operate.

[0004] Although the above-mentioned device fixes the fan blades horizontally and vertically through its structure, the fan blades need to be rotated sequentially during the tightening process to lock the nuts one by one. Traditional clamping devices usually clamp the fan blades and require manual rotation by the operator, which can easily lead to inconsistent rotation distances and inconsistent processing visual angles, thus affecting the processing quality. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an auxiliary clamping device for wind turbine blade locking nuts.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary clamping device for a fan blade locking nut, comprising a base, a control box fixedly connected to one side of the base, a support plate fixedly connected to the other side of the base, an upper plate fixedly connected to the top of the support plate via a pair of three-axis cylinders, guide posts slidably sleeved at the four corners of the upper plate, the bottoms of the guide posts fixedly connected to the support plate, and a first rubber pad rotatably connected to the middle of the upper plate via a rotating seat, further comprising:

[0007] An equidistant rotation mechanism is located in the middle of the support plate;

[0008] A limiting movement mechanism, which is connected to an equidistant rotation mechanism;

[0009] The equidistant rotation mechanism, in conjunction with the reciprocating compression of the upper plate, can rotate the clamped fan blades at equal intervals, while simultaneously driving the bottom limiting moving mechanism to move up and down reciprocally.

[0010] Preferably, the equidistant rotation mechanism includes a toothed sleeve fixed to a support plate, an extrusion column slidably connected to the inner cavity of the support plate, the extrusion column being slidably engaged in the groove of the toothed sleeve via a sliding column, and a positioning pin fixedly connected to the top of the extrusion column.

[0011] Preferably, the bottom of each of the plurality of sliding columns abuts against an inclined top vertical rod, and a rotating shaft is fixedly connected to the inner side of the inclined top vertical rod, the top of the rotating shaft being rotatably connected to the bottom of the extrusion column.

[0012] Preferably, a rotating sleeve is fixedly connected to the outer wall of the inclined top vertical rod, the rotating sleeve is rotatably connected to the support plate, and a second rubber pad is fixedly connected to the top of the rotating sleeve.

[0013] Preferably, the bottom teeth of the toothed sleeve are provided with beveled surfaces, and the top bevel of the inclined top vertical rod matches the beveled surface of the toothed sleeve.

[0014] Preferably, the limiting movement mechanism includes an outer sleeve fixed between the support plate and the base, the bottom of the retaining sleeve fixed to the inner cavity of the outer sleeve, the outer wall of the inclined top vertical rod slidably connected to the inner cavity of the outer sleeve, vertical grooves on both sides of the outer sleeve, and a disc slidably connected to the outer sleeve through a limiting slider.

[0015] Preferably, the center of the disc is rotatably connected to the rotating shaft, the bottom of the disc is elastically connected to the base, and a ring block is fixedly connected to the outer side of the limiting slider. The ring block is slidably sleeved on the outer wall of the outer sleeve, and storage compartments are fixedly connected to both sides of the ring block.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes the coordinated structure of an inclined vertical rod, a sliding column, a retaining sleeve, and a storage compartment to automatically rotate the workpiece by an equal distance for easier processing. When the sliding column pushes the inclined vertical rod out of the retaining sleeve, the inclined vertical rod rotates slightly to the retaining position of the retaining sleeve. At this point, the three-axis cylinder is activated to push the upper plate up to the initial positioning position. Then, under the action of the inclined surface of the retaining sleeve, the inclined vertical rod drives the entire rotating shaft to rotate until the inclined vertical rod reaches the limit in the next retaining slot of the retaining sleeve. Finally, the rotating shaft drives the workpiece to rotate equidistantly, eliminating the need for manual rotation of the workpiece by the operator, ensuring a consistent visual angle during processing, and effectively improving processing quality. Furthermore, whenever the disc is pressed down, it can move the storage compartment downwards to expose it, and when not in use, it returns to its original position and moves upwards, hiding it under the support plate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram showing the structural fit between the outer sleeve and the support plate of this utility model;

[0020] Figure 3 This is a schematic diagram showing the structural fit between the extrusion column and the toothed sleeve of this utility model;

[0021] Figure 4 This is a schematic diagram showing the structural fit between the rotating sleeve and the second rubber pad of this utility model;

[0022] Figure 5 This is a schematic diagram showing the structural fit between the rotating sleeve and the inclined top vertical rod of this utility model.

[0023] In the diagram: 1. Base; 2. Control box; 3. Support plate; 4. Guide column; 5. Three-axis cylinder; 6. Upper plate; 7. First rubber pad; 8. Equidistant rotation mechanism; 801. Extrusion column; 802. Positioning pin; 803. Gear sleeve; 804. Sliding column; 805. Inclined top vertical rod; 806. Rotating sleeve; 807. Second rubber pad; 808. Rotating shaft; 9. Limiting movement mechanism; 901. Outer sleeve; 902. Ring block; 903. Storage compartment; 904. Limiting slider; 905. Disc; 906. Vertical groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5As shown, this utility model provides an auxiliary clamping device for a fan blade locking nut, including a base 1, a control box 2 fixedly connected to one side of the base 1, a support plate 3 fixedly connected to the other side of the base 1, an upper plate 6 fixedly connected to the top of the support plate 3 via a pair of three-axis cylinders 5, guide posts 4 slidably sleeved at the four corners of the upper plate 6, the bottoms of the guide posts 4 fixedly connected to the support plate 3, and a first rubber pad 7 rotatably connected to the middle of the upper plate 6 via a rotating seat, and also includes:

[0026] An equidistant rotating mechanism 8 is located in the middle of the support plate 3;

[0027] Limiting movement mechanism 9, which is connected to equidistant rotation mechanism 8;

[0028] Among them, the equidistant rotation mechanism 8, in conjunction with the upper plate 6, reciprocates and squeezes, which can rotate the clamped fan blades at equal intervals, while driving the bottom limit moving mechanism 9 to move up and down reciprocally.

[0029] Using the above method: After the fan blade workpiece is placed, the three-axis cylinder 5 is started to retract, which drives the upper plate 6 to move downward until the first rubber pad 7 abuts against the top of the workpiece, completing the initial positioning.

[0030] like Figures 3 to 5 As shown, the equidistant rotation mechanism 8 includes a toothed sleeve 803 fixed to the support plate 3. An extrusion column 801 is slidably connected to the inner cavity of the support plate 3. The extrusion column 801 is slidably engaged in the slot of the toothed sleeve 803 through a sliding column 804. A positioning pin 802 is fixedly connected to the top of the extrusion column 801. The bottom of each of the sliding columns 804 abuts against a sloping top vertical rod 805. A rotating shaft 808 is fixedly connected to the inner side of the sloping top vertical rod 805. The top of the rotating shaft 808 is rotatably connected to the bottom of the extrusion column 801. A rotating sleeve 806 is fixedly connected to the outer wall of the sloping top vertical rod 805. The rotating sleeve 806 is rotatably connected to the support plate 3. A second rubber pad 807 is fixedly connected to the top of the rotating sleeve 806. The teeth at the bottom of the toothed sleeve 803 are all provided with sloping surfaces. The top sloping surface of the sloping top vertical rod 805 matches the sloping surface of the toothed sleeve 803.

[0031] Using the above scheme: The three-axis cylinder 5 retracts. When the sliding column 804 presses the inclined vertical rod 805 out of the retaining sleeve 803, the inclined vertical rod 805 rotates slightly to the retaining position of the retaining sleeve 803. At this time, the three-axis cylinder 5 pushes the upper plate 6 upward to the initial positioning position. Then, under the action of the inclined surface of the retaining sleeve 803, the inclined vertical rod 805 drives the rotating shaft 808 to rotate as a whole until the inclined vertical rod 805 reaches the next retaining groove of the retaining sleeve 803 for limit. At this time, the rotating sleeve 806 rotates synchronously under the drive of the inclined vertical rod 805, and drives the workpiece to rotate through the second rubber pad 807 and the first rubber pad 7. This process repeats, automatically rotating the workpiece by an equal distance to facilitate processing.

[0032] like Figures 2 to 4 As shown, the limiting movement mechanism 9 includes an outer sleeve 901 fixed between the support plate 3 and the base 1, a retaining sleeve 803 with its bottom fixed to the inner cavity of the outer sleeve 901, an inclined top vertical rod 805 with its outer wall slidably connected to the inner cavity of the outer sleeve 901, vertical grooves 906 on both sides of the outer sleeve 901, and a disc 905 slidably connected to the outer sleeve 901 via a limiting slider 904; the middle part of the disc 905 is rotatably connected to the rotating shaft 808, and the bottom of the disc 905 is elastically connected to the base 1; an annular block 902 is fixedly connected to the outer side of the limiting slider 904; the annular block 902 is slidably sleeved on the outer wall of the outer sleeve 901; and storage compartments 903 are fixedly connected to both sides of the annular block 902.

[0033] Using the above scheme: when the workpiece is clamped, the storage compartment 903 is driven to move downward and exposed, and the staff can take out new nuts, bolts and other parts from it. When the workpiece is removed, the spring force compression device is reset, and the storage compartment 903 moves upward synchronously with the ring block 902, so that it is hidden under the support plate 3.

[0034] Working principle and usage process of this utility model:

[0035] First, the workpiece is placed on the extrusion column 801 via the positioning pin 802. The three-axis cylinder 5 is then retracted, causing the upper plate 6 to move downwards until the first rubber pad 7 abuts against the top of the workpiece, completing the initial positioning. Next, the three-axis cylinder 5 continues to retract, pressing the workpiece tightly against the first rubber pad 7 and the second rubber pad 807. The extrusion column 801 drives the sliding column 804 to press downwards, causing the inclined top vertical rod 805 and the rotating shaft 808 to move downwards together and compress the spring through the disc 905. At this time, the operator can tighten the nuts on the fan blade workpiece from both sides.

[0036] After partial locking is completed, the remaining parts need to be processed sequentially. Next, the three-axis cylinder 5 is activated to retract. When the sliding column 804 presses the inclined vertical rod 805 out of the retaining sleeve 803, the inclined vertical rod 805 rotates slightly to the retaining tooth position of the retaining sleeve 803. At this point, the three-axis cylinder 5 is activated to push the upper plate 6 upward to the initial positioning position. Then, under the action of the inclined surface of the retaining tooth of the retaining sleeve 803, the inclined vertical rod 805 drives the rotating shaft 808 to rotate as a whole until the inclined vertical rod 805 reaches the next retaining groove of the retaining sleeve 803 for limit. At this time, the rotating sleeve 806 rotates synchronously under the drive of the inclined vertical rod 805, driving the workpiece to rotate through the second rubber pad 807. Since the first rubber pad 7 is mounted on the upper plate 6 through the rotating seat, it does not obstruct the rotation of the workpiece. After the workpiece rotates a certain distance, the three-axis cylinder 5 retracts again and continues to press the workpiece tightly through the first rubber pad 7 and the second rubber pad 807, and continues to lock the nut on the fan blade. This process is repeated to automatically rotate the workpiece a certain distance for processing. There is no need for the operator to manually rotate the workpiece, ensuring that the processing visual angle is consistent and effectively improving the processing quality.

[0037] During processing, as the disc 905 is repeatedly pressed downwards, the ring block 902 is moved up and down synchronously by the limiting slider 904, and the storage compartments 903 located on both sides of the ring block 902 also move synchronously. Thus, when the workpiece is pressed, the storage compartments 903 are moved downwards and exposed, allowing the operator to retrieve new nuts, bolts, and other parts. When the workpiece is removed, the spring force pressing device resets, and the storage compartments 903 move upwards synchronously with the ring block 902, hiding them under the support plate 3 and preventing them from being exposed to the air.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping device for a fan blade locking nut, comprising a base (1), a control box (2) fixedly connected to one side of the base (1), a support plate (3) fixedly connected to the other side of the base (1), an upper plate (6) fixedly connected to the top of the support plate (3) via a pair of three-axis cylinders (5), guide posts (4) slidably sleeved at the four corners of the upper plate (6), the bottom of the guide posts (4) fixedly connected to the support plate (3), and a first rubber pad (7) rotatably connected to the middle of the upper plate (6) via a rotating seat, characterized in that, Also includes: An equidistant rotation mechanism (8) is located in the middle of the support plate (3); A limiting movement mechanism (9) is connected to an equidistant rotation mechanism (8); The equidistant rotation mechanism (8) works in conjunction with the upper plate (6) to reciprocate and squeeze, thereby rotating the clamped fan blades at equal intervals and simultaneously driving the bottom limiting movement mechanism (9) to move up and down reciprocally.

2. The auxiliary clamping device for the fan blade locking nut according to claim 1, characterized in that: The equidistant rotation mechanism (8) includes a toothed sleeve (803) fixed to the support plate (3). The inner cavity of the support plate (3) is slidably connected to an extrusion column (801). The extrusion column (801) is slidably engaged in the slot of the toothed sleeve (803) through a sliding column (804). A positioning pin (802) is fixedly connected to the top of the extrusion column (801).

3. The auxiliary pressing device for the blade locking nut according to claim 2, characterized in that: The bottom of each of the sliding columns (804) abuts against a sloping top vertical rod (805), and a rotating shaft (808) is fixedly connected to the inner side of the sloping top vertical rod (805). The top of the rotating shaft (808) is rotatably connected to the bottom of the extrusion column (801).

4. The auxiliary pressing device for the blade locking nut according to claim 3, characterized in that: A rotating sleeve (806) is fixedly connected to the outer wall of the inclined top vertical rod (805). The rotating sleeve (806) is rotatably connected to the support plate (3). A second rubber pad (807) is fixedly connected to the top of the rotating sleeve (806).

5. The auxiliary pressing device for the blade locking nut according to claim 4, characterized in that: The bottom teeth of the toothed sleeve (803) are all provided with inclined surfaces, and the top inclined surface of the inclined top vertical rod (805) matches the inclined surface of the toothed sleeve (803).

6. The auxiliary pressing device for the blade locking nut according to claim 5, characterized in that: The limiting movement mechanism (9) includes an outer sleeve (901) fixed between the support plate (3) and the base (1), the bottom of the toothed sleeve (803) fixed to the inner cavity of the outer sleeve (901), the outer wall of the inclined top vertical rod (805) slidably connected to the inner cavity of the outer sleeve (901), vertical grooves (906) are provided on both sides of the outer sleeve (901), and a disc (905) is slidably connected to the outer sleeve (901) through a limiting slider (904).

7. The auxiliary pressing device for the blade locking nut according to claim 6, characterized in that: The center of the disc (905) is rotatably connected to the rotating shaft (808), and the bottom of the disc (905) is elastically connected to the base (1). A ring block (902) is fixedly connected to the outside of the limiting slider (904), and the ring block (902) is slidably sleeved on the outer wall of the outer sleeve (901). Storage compartments (903) are fixedly connected to both sides of the ring block (902).

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