Multi-purpose adjustable articulated arm and processing method

Abstract

The present invention relates to a multi-purpose adjustable articulated arm and a processing method. The articulated arm includes an articulated arm body and several bearings and fixing bolts. The articulated arm body includes a support arm, a first connecting arm, a hinge support, a second connecting arm, and a third connecting arm. One end of the support arm is sequentially connected to the first connecting arm and the hinge support, and the other end is sequentially connected to the second connecting arm and the third connecting arm. The third connecting arm is provided with a third through hole. The support arm is provided with a first through hole matching the bearing. The inner side wall of the first through hole is provided with a first threaded hole, and the outer side wall of the bearing is correspondingly provided with a second threaded hole. Several bearings have the same outer diameter and different inner diameters. One of the bearings is coaxially arranged in the first through hole via a fixing bolt, a first threaded hole, and a second threaded hole. Compared with the existing technology, the present invention has the advantages of high efficiency, low cost, and a wide range of applications.

Description

Technical Field

[0001] The invention relates to an articulated arm, in particular to a multi-purpose adjustable articulated arm and a processing method thereof. Background Art

[0002] During the production process of various means of transportation, such as aircraft and vehicles, it is necessary to ensure that the cabin door can rotate naturally and smoothly to open and close. Therefore, various hinge structures are set between the cabin door and the main body of the vehicle. The hinge structure includes multiple different types of hinged parts. The various hinged parts cooperate with each other to jointly realize the hinge function. When a hinge part in the hinge structure needs to be replaced during the maintenance process, since the hinge part is a non-standard part, it is difficult to find an identical replacement part, which makes the maintenance work difficult and even requires re-customization of the replacement part, reducing maintenance efficiency and increasing maintenance costs. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a detachable articulated arm and a processing method thereof, which has high efficiency, low cost and wide application range.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A multi-purpose adjustable articulated arm comprises an articulated arm body and several bearings and fixing bolts, the articulated arm body comprising a support arm, a first connecting arm, a hinge support, a second connecting arm and a third connecting arm, one end of the support arm is sequentially connected to the first connecting arm and the hinge support, and the other end is sequentially connected to the second connecting arm and the third connecting arm, the third connecting arm is provided with a third through hole, the support arm is provided with a first through hole matching the bearing, the inner side wall of the first through hole is provided with a first threaded hole, and the outer side wall of the bearing is correspondingly provided with a second threaded hole, the several bearings have the same outer diameter and different inner diameters, and one of the bearings is coaxially arranged in the first through hole through the fixing bolt, the first threaded hole and the second threaded hole;

[0006] The multi-purpose adjustable articulated arm can be matched and connected with articulated parts such as a base, a rotating shaft or an articulated arm through the third through hole, the first through hole and the hinge support. Bearings with different inner diameters can be selected to adapt to articulated parts of different sizes. It has a wide range of applications. When the articulated part hinged to the third through hole needs to be replaced, a replacement articulated part of the same type but different size can be replaced, and then a bearing matching the replacement articulated part can be selected, thereby improving maintenance efficiency and reducing maintenance costs.

[0007] Furthermore, the first connecting arm and the hinge support are symmetrical with the second connecting arm and the third connecting arm about the main axis of the first through hole.

[0008] Furthermore, a first groove is provided on the first connecting arm to ensure structural strength while reducing the weight of the articulated arm.

[0009] Furthermore, a second transition arm is provided between the first connecting arm and the hinge support, and a second groove is provided on the second transition arm, so as to ensure the structural strength while reducing the weight of the hinged arm.

[0010] Furthermore, the thickness of the second transition arm along the axial direction of the first through hole gradually increases in the direction away from the first connecting arm, and the thickness of the first connecting arm along the axial direction of the first through hole gradually increases in the direction away from the second transition arm, and the shear resistance is strong.

[0011] Furthermore, a third groove is provided on the second connecting arm to ensure structural strength while reducing the weight of the articulated arm.

[0012] Furthermore, a first transition arm is provided between the second connecting arm and the third connecting arm, and a fourth groove is provided on the first transition arm, so as to ensure the structural strength while reducing the weight of the articulated arm.

[0013] Furthermore, the thickness of the first transition arm along the axial direction of the first through hole gradually increases in the direction away from the second connecting arm, and the thickness of the second connecting arm along the axial direction of the first through hole gradually increases in the direction away from the first transition arm, and the shear resistance is strong.

[0014] Furthermore, there are multiple first threaded holes, which are symmetrically arranged on opposite sides of the inner side wall of the first through hole to ensure that the bearing position is fixed.

[0015] A method for manufacturing a multi-purpose adjustable articulated arm, the method comprising the following steps:

[0016] Build a three-dimensional model of the articulated arm;

[0017] Design tool trajectory data based on tool parameters and articulated arm 3D model;

[0018] Perform simulation processing based on tool trajectory data and optimize tool trajectory data.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The articulated arm of the present invention includes an articulated arm body and several bearings and fixing bolts. The articulated arm body includes a support arm, a first connecting arm, a hinge support, a second connecting arm and a third connecting arm. One end of the support arm is connected to the first connecting arm and the hinge support in sequence, and the other end is connected to the second connecting arm and the third connecting arm in sequence. A third through hole is provided on the third connecting arm. A first through hole matching the bearing is provided on the support arm. A first threaded hole is provided on the inner wall of the first through hole, and a second threaded hole is provided on the outer wall of the bearing. Several bearings have the same outer diameter and different inner diameters. One of the bearings is coaxially arranged in the first through hole through the fixing bolt, the first threaded hole and the second threaded hole. The multi-purpose adjustable articulated arm can be matched and connected with articulated parts such as a base, a rotating shaft or an articulated arm through the third through hole, the first through hole and the hinge support. Bearings with different inner diameters can be selected to adapt to articulated parts of different sizes. The application range is wide. When the articulated part hinged to the third through hole needs to be replaced, a replacement articulated part of the same type but different size can be replaced, and then a bearing matching the replacement articulated part can be selected, thereby improving and reducing maintenance efficiency and reducing maintenance costs.

[0021] (2) The present invention provides a first groove on the first connecting arm, a second groove on the second transition arm, a third groove on the second connecting arm, and a fourth groove on the first transition arm, thereby ensuring structural strength while reducing the weight of the articulated arm and lowering costs;

[0022] (3) The thickness of the second transition arm along the axial direction of the first through hole gradually increases in the direction away from the first connecting arm, and the thickness of the first connecting arm along the axial direction of the first through hole gradually increases in the direction away from the second transition arm, and the thickness of the first transition arm along the axial direction of the first through hole gradually increases in the direction away from the second connecting arm, and the thickness of the second connecting arm along the axial direction of the first through hole gradually increases in the direction away from the first transition arm, and the shear resistance is strong;

[0023] (4) The present invention has multiple first threaded holes, which are symmetrically arranged on opposite sides of the inner wall of the first through hole to ensure that the bearing position is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of the articulated arm body;

[0026] Figure 3 is the main view of the bearing;

[0027] Description of the numbers in the figure:

[0028] 1. Articulated arm body, 2. Bearing, 3. Fixing bolt, 11. Support arm, 12. First connecting arm, 13. Hinge support, 14. Second connecting arm, 15. Third connecting arm, 16. First transition arm, 17. Second transition arm, 21. Second threaded hole, 111. First through hole, 112. First threaded hole, 121. First groove, 131. Second groove, 132. Second through hole, 141. Third groove, 151. Fourth groove, 152. Third through hole. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0030] Example 1

[0031] A multi-purpose adjustable articulated arm comprises an articulated arm body 1 and several bearings 2 and a fixing bolt 3. The articulated arm body 1 comprises a support arm 11, a first connecting arm 12, a hinge support 13, a second connecting arm 14 and a third connecting arm 15. One end of the support arm 11 is sequentially connected to the first connecting arm 12 and the hinge support 13, and the other end is sequentially connected to the second connecting arm 14 and the third connecting arm 15. The third connecting arm 15 is provided with a third through hole 152. The support arm 11 is provided with a first through hole 111 matching the bearing 2. The inner wall of the first through hole 111 is provided with a first threaded hole 112, and the outer wall of the bearing 2 is correspondingly provided with a second threaded hole 21. Several bearings 2 have the same outer diameter and different inner diameters. One of the bearings 2 is coaxially arranged in the first through hole 111 through the fixing bolt 3, the first threaded hole 112 and the second threaded hole 21.

[0032] The multi-purpose adjustable articulated arm can be matched and connected with articulated parts such as the base, the rotating shaft or the articulated arm through the third through hole 152, the first through hole 111 and the hinge support 13. Bearings 2 with different inner diameters can be selected to adapt to articulated parts of different sizes. It has a wide range of applications. When the articulated part hinged to the third through hole 152 needs to be replaced, a replacement articulated part of the same type but different size can be replaced, and then a bearing 2 matching the replacement articulated part can be selected, thereby improving maintenance efficiency and reducing maintenance costs.

[0033] The first connecting arm 12 and the hinge support 13 are symmetrical with the second connecting arm 14 and the third connecting arm 15 about the main axis of the first through hole 111 .

[0034] A first groove 121 is provided on the first connecting arm 12 , and a third groove 141 is provided on the second connecting arm 14 , which ensures structural strength while reducing the weight of the articulated arm.

[0035] A second transition arm 17 is provided between the first connecting arm 12 and the hinge support 13 . A second groove 131 is provided on the second transition arm 17 , which ensures structural strength while reducing the weight of the hinged arm.

[0036] A first transition arm 16 is provided between the second connecting arm 14 and the third connecting arm 15 . A fourth groove 151 is provided on the first transition arm 16 to ensure structural strength while reducing the weight of the articulated arm.

[0037] The axial thickness of the second transition arm 17 along the first through hole 111 gradually increases in the direction away from the first connecting arm 12, the axial thickness of the first connecting arm 12 along the first through hole 111 gradually increases in the direction away from the second transition arm 17, the axial thickness of the first transition arm 16 along the first through hole 111 gradually increases in the direction away from the second connecting arm 14, and the axial thickness of the second connecting arm 14 along the first through hole 111 gradually increases in the direction away from the first transition arm 16, and has strong shear resistance.

[0038] There are multiple first threaded holes 112 , which are symmetrically arranged on two opposite sides of the inner wall of the first through hole 111 to ensure that the position of the bearing 2 is fixed.

[0039] Example 2

[0040] A method for manufacturing the multi-purpose adjustable articulated arm according to embodiment 1, the method comprising the following steps:

[0041] Build a three-dimensional model of the articulated arm;

[0042] Design tool trajectory data based on tool parameters and articulated arm 3D model;

[0043] Perform simulation processing based on tool trajectory data and optimize tool trajectory data.

[0044] Tool parameters include diameter, lower radius, blade length, chamfer angle, RC, processing parameters and part information. Processing parameters include cutting depth, feed and speed. Part information includes blank size.

[0045] The bottom surface of the first groove 121 is designated as surface A, the side surface of the second connecting arm 14 axially parallel to the first through hole 111 is designated as surface B, the first through hole 111 is designated as hole a, the third through hole 152 is designated as hole b, and the second through hole 132 on the hinge support 13 is designated as hole c. The optimized tool path data obtained in this embodiment are as follows:

[0046] Step 1: Milling of surface A;

[0047] Clamping side A: Use aluminum sheet to clamp and fix the blank containing block with a length of 172mm, a width of 91mm and a height of 33mm. First, drill the center of three holes to the depth. Deep, first drill a hole The second hole is drilled through hole, and finally drill the C hole Then, use the center drill to drill the side positioning holes. Deep, drill two Then change the tool, mill the deep groove of the A side, design the milling groove wall tool path, and then mill the bottom wall of the groove, 14.5mm deep from the blank surface, and finally process the inner corner of the groove. Use the positioning piece to fix the hole a Re-clamp the positioning holes on the side and process the diameters of holes C and B. The arc slope is consistent from front to back. The diameter of the arc slope on the left side of hole A is The diameter of the arc slope on the right is The center positions of the front and rear slopes are different; then the blank allowance is milled;

[0048] Step 2: milling the B surface;

[0049] Flip over and clamp hole a on side B Locate the side positioning hole and drill the center of hole C on side B first. Deep, then process the B side Then change the tool, process the deep groove on the B side, design the tool path for milling the groove wall, and finally process the fillet inside the groove. Change the disc cutter and mill the notch on the side of the part. The notch is 11.7mm high and 25.4mm long, with an inner fillet of Mill the side notches; the slope processing next to holes a, b, and c on side B is the same as described in step 1;

[0050] Step 3: Milling the plane;

[0051] Rough milling of blanks, leaving 1mm finishing allowance on all surfaces. Finish milling of planes, leaving 0 allowance on the product;

[0052] Step 4: Finishing;

[0053] Finish milling of A and B sides and The arc slope is milled off the excess allowance on the planes A and B, and the inner fillet is milled Mill deep grooves on both sides A and B, 14.5mm deep from the surface of the blank, and finally process the inner corners of the groove The milling side notch is 11.7mm high, 25.4mm long, and has an inner fillet of

[0054] Embodiments 1 and 2 propose a multi-purpose adjustable articulated arm and a processing method, which can be matched and connected with articulated parts such as a base, a rotating shaft or an articulated arm through the third through hole 152, the first through hole 111 and the hinge support 13. Bearings 2 with different inner diameters can be selected to adapt to articulated parts of different sizes. The application range is wide. When the articulated part hinged to the third through hole 152 needs to be replaced, a replacement articulated part of the same type but different size can be replaced, and then a bearing 2 matching the replacement articulated part can be selected, thereby improving and reducing maintenance efficiency and reducing maintenance costs.

[0055] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A multi-purpose adjustable articulated arm, characterized in that: The invention comprises an articulated arm body (1) and several bearings (2) and a fixing bolt (3), wherein the articulated arm body (1) comprises a support arm (11), a first connecting arm (12), a hinge support (13), a second connecting arm (14) and a third connecting arm (15), one end of the support arm (11) is connected to the first connecting arm (12) and the hinge support (13) in sequence, and the other end is connected to the second connecting arm (14) and the third connecting arm (15) in sequence, and the third connecting arm (15) is provided with a third through hole (152), the support arm (11) is provided with a first through hole (111) matching the bearing (2), the inner side wall of the first through hole (111) is provided with a first threaded hole (112), and the outer side wall of the bearing (2) is correspondingly provided with a second threaded hole (21), the outer diameters of the several bearings (2) are the same and the inner diameters are different, and one of the bearings (2) is coaxially arranged in the first through hole (111) through the fixing bolt (3), the first threaded hole (112) and the second threaded hole (21), A second transition arm (17) is provided between the first connecting arm (12) and the hinge support (13), and a second groove (131) is provided on the second transition arm (17). The thickness of the second transition arm (17) along the axial direction of the first through hole (111) gradually increases in a direction away from the first connecting arm (12); The thickness of the first connecting arm (12) along the axial direction of the first through hole (111) gradually increases in a direction away from the second transition arm (17). A first transition arm (16) is provided between the second connecting arm (14) and the third connecting arm (15), and a fourth groove (151) is provided on the first transition arm (16). The thickness of the first transition arm (16) along the axial direction of the first through hole (111) gradually increases in a direction away from the second connecting arm (14); The thickness of the second connecting arm (14) along the axial direction of the first through hole (111) gradually increases in a direction away from the first transition arm (16).

2. The multi-purpose adjustable articulated arm according to claim 1, characterized in that: The first connecting arm (12) and the hinge support (13) are symmetrical with the second connecting arm (14) and the third connecting arm (15) about the main axis of the first through hole (111).

3. The multi-purpose adjustable articulated arm according to claim 1, characterized in that: The first connecting arm (12) is provided with a first groove (121).

4. The multi-purpose adjustable articulated arm according to claim 1, characterized in that: The second connecting arm (14) is provided with a third groove (141).

5. The multi-purpose adjustable articulated arm according to claim 1, characterized in that: There are multiple first threaded holes (112), and the multiple first threaded holes (112) are symmetrically arranged on opposite sides of the inner side wall of the first through hole (111).

6. A method for processing a multi-purpose adjustable articulated arm as claimed in claim 1, characterized in that: The method comprises the following steps: Build a three-dimensional model of the articulated arm; Design tool trajectory data based on tool parameters and articulated arm 3D model; Perform simulation processing based on tool trajectory data and optimize tool trajectory data.

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