A tool for processing elbow joint parts

Abstract

The utility model discloses a tool for processing elbow joint parts, which is used for positioning and clamping elbow joint parts, and comprises a base plate, a support rod, two positioning blocks, a plurality of adjusting nuts and a positioning rod; the positioning surfaces of the two positioning blocks are extended and intersect to form a V-shape, the positioning rod is located on the inner sides of the two positioning blocks, and the outer peripheral surface of the elbow joint part is respectively in contact with the positioning block and the positioning rod; the support rod and the adjusting nut are connected to the base plate; the utility model also comprises a pressing plate assembly, which presses the elbow joint part onto the adjusting nut so that the first flange surface and the second flange surface of the elbow joint part are in contact with the upper end surface of each adjusting nut, so as to quickly realize the rapid positioning and clamping of the elbow joint part, which has a complex structure; after the processing is completed, the elbow joint part can be disassembled by only loosening the pressing plate assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing accessories, in particular to a processing tool for elbow joint parts. Background Art

[0002] With the development of industrial automation, robots are increasingly used in industrial production. As a key component for connection and transmission, the machining accuracy of the robot elbow joint directly affects the performance of the robot. Figure 1-2 An elbow joint part 10 is shown. However, due to the complex shape of the elbow joint of the manipulator, the difficulty of clamping and positioning, and the difficulty of processing, conventional fixtures are difficult to meet the needs of high-precision processing. Therefore, it is of great significance to develop a high-precision tooling fixture for processing aluminum castings of the elbow joint of the manipulator to improve the processing accuracy and efficiency of the elbow joint of the manipulator. The tools currently used for processing have the following problems: 1. Conventional fixtures such as flat-nose pliers, V-blocks, chucks, etc. can only clamp and clamp parts with regular shapes such as rectangles and cylinders. 2. The fixtures designed in the past are first fine-machined surfaces and holes, and then used as one side and two pins for positioning processing. Since the clearance is required for matching, the accumulated error of the clearance often affects the final processing accuracy, resulting in poor processing accuracy and the need for rework or even scrapping. The processing steps will also increase accordingly, resulting in reduced processing efficiency and increased processing costs. 3. The previous fixture clamping time is long, the operator's skills are required to be high, and a table calibration is required. Batch processing cannot be completed for ordinary operators. In view of all the shortcomings of the above-mentioned prior art, the technical problems to be solved by the present invention are described one by one. Summary of the invention

[0003] The utility model aims to provide a tooling for processing elbow joint parts, which is intended to solve the clamping of elbow joint parts, improve the processing accuracy and shorten the clamping time.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] A tool for processing elbow joint parts, used for positioning and clamping elbow joint parts, comprises a base plate, a support rod, two positioning blocks, a plurality of adjusting nuts and a positioning rod; the positioning surfaces of the two positioning blocks are extended and intersect in a V shape, the positioning rod is located on the inner sides of the two positioning blocks, and the outer peripheral surface of the elbow joint part contacts the positioning blocks and the positioning rod respectively; the support rod and the adjusting nut are connected to the base plate; and also comprises a pressure plate assembly, which presses the elbow joint part onto the adjusting nut so that the first flange surface and the second flange surface of the elbow joint part contact the upper end surface of each adjusting nut.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a first raising block and a second raising block; the positioning rod is fixed on the upper end surface of the first raising block, the two positioning blocks are fixed on the upper end surface of the second raising block, and at least two adjusting nuts are arranged on the upper end surfaces of the first raising block and the second raising block.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the pressure plate assembly includes a first pressure plate assembly and a second pressure plate assembly; one end of the first pressure plate of the first pressure plate assembly contacts the upper end surface of the support rod, and the other end contacts the inner wall of the mounting hole of the elbow joint part.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes an adjustment block, the adjustment block is located between the upper end surface of the support rod and the first pressing plate, and the adjustment block is threadedly connected to the support rod.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the adjusting nut is threadedly connected to the first raising block and the second raising block respectively.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the adjusting nut includes a threaded section and a rotating section located at the upper end of the threaded section, and the upper end surface of the rotating section is a working plane.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the upper end surface of the rotating section is provided with a tooth protrusion.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a positioning rod, which has a through hole, and the through hole is perpendicular to the axis of the positioning rod; the positioning rod is connected to the through hole, and its end is in contact with a positioning surface of the elbow joint part.

[0013] On the basis of the above solution and as a preferred solution of the above solution: two adjusting nuts are provided on the first raising block.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: three adjusting nuts are provided on the second pad block, and the center line thereof forms a triangle.

[0015] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: a base plate, a support rod, two positioning blocks, a plurality of adjusting nuts and a positioning rod are provided; the base plate is used to connect the tooling with the worktable of the CNC milling machine, the positioning surfaces of the two positioning blocks are extended and intersect in a V shape, the positioning rod is located on the inner sides of the two positioning blocks, and after the elbow joint parts are placed on the tooling, the elbow joint parts are in contact with the positioning blocks and the positioning rods, thereby forming a three-point positioning for the elbow joint parts and realizing rapid positioning in a horizontal position; the adjusting nut is in contact with the positioning plane of the elbow joint parts, so that the processing surface of the elbow joint parts is horizontally positioned; by providing a pressing plate assembly, the elbow joint parts are pressed tightly on the tooling, thereby realizing rapid positioning and clamping of the elbow joint parts, which have a complex structure; after the processing is completed, the elbow joint parts can be removed by simply loosening the pressing plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the elbow joint parts;

[0017] Figure 2 This is a three-dimensional diagram of the overall structure of the elbow joint parts from another angle;

[0018] Figure 3 It is the overall structural front view of the tooling of this application;

[0019] Figure 4 It is a top view of the overall structure of the tooling of the present application;

[0020] Figure 5 It is a three-dimensional diagram of the overall structure of the tooling of this application;

[0021] Figure 6 It is a top view of the elbow joint parts and the fixture clamping status;

[0022] Figure 7 This is the left view of the elbow joint parts and the fixture clamping state;

[0023] Figure 8 It is a three-dimensional diagram of the elbow joint parts and the tooling clamping status. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of this application, not all embodiments. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0027] See Figure 3-8 As shown, the present application discloses an elbow joint part processing tooling for positioning and clamping the elbow joint part 10, including a base plate 21, a support rod 24, two positioning blocks 26, a plurality of adjusting nuts 27 and a positioning rod 28; the positioning surfaces of the two positioning blocks 26 are extended and intersected in a V shape, the positioning rod 28 is located on the inner side of the two positioning blocks 26, and the outer peripheral surface of the elbow joint part 10 is in contact with the positioning blocks 26 and the positioning rod 28 respectively; the support rod 24 and the adjusting nut 27 are connected to the base plate 21; and also includes a pressing plate assembly, which presses the elbow joint part 10 on the adjusting nut 27 so that the first flange surface 13 and the second flange surface 14 of the elbow joint part 10 are in contact with the upper end surface of each adjusting nut 27. Specifically, the adjusting nut 27 includes a threaded section 271 and a rotating section 272 located at the upper end of the threaded section 271, and the upper end surface 273 of the rotating section 272 is a working plane. Preferably, the upper end surface 273 of the rotating section 272 is provided with a tooth protrusion. The tooth protrusions can be adaptively adjusted according to the uneven surface shape and size changes of the aluminum casting of the robot elbow joint, ensuring that the parts will not move under the action of force and compression, ensuring the accurate position of the parts during the processing.

[0028] Further preferably, due to the limitation of the machine tool stroke, it is necessary to raise the elbow joint parts to meet the processing needs. The present embodiment also includes a first pad block 22 and a second pad block 23; a positioning rod 28 is fixed on the upper end surface of the first pad block 22, and two positioning blocks 26 are fixed on the upper end surface of the second pad block 23, and at least two adjusting nuts 27 are evenly distributed on the upper end surfaces of the first pad block 22 and the second pad block 23. The adjusting nuts 27 are threadedly connected to the first pad block 22 and the second pad block 23, respectively. Preferably, two adjusting nuts 27 are provided on the first pad block 22. Three adjusting nuts 27 are provided on the second pad block 23, and the center line thereof is a triangle. Preferably, the base plate 1, the first pad block 22 and the second pad block 23 are all made of 45 steel material, which is subjected to quenching and tempering heat treatment to have sufficient hardness and strength to ensure the rigidity of the fixture during the machine tool processing process.

[0029] In addition, if the positioning space enclosed by the positioning block and the positioning rod can just make the elbow joint parts contact the positioning block and the positioning rod, then when clamping and disassembling the elbow joint parts, it will inevitably cause them to be difficult to smoothly put in and take out. Then, in order to more easily put the elbow joint parts into the positioning space formed by the positioning block and the positioning rod; in this embodiment, the positioning rod 28 is preferably deviated from the actual required positioning position; and also includes a positioning rod 282, the positioning rod 28 is provided with a through hole 281, and the through hole 281 is perpendicular to the axis of the positioning rod 28; the positioning rod 282 is connected to the through hole 281, and its end is in contact with a positioning surface 15 of the elbow joint part 10. That is to say, the elbow joint part is placed into the positioning space and only contacts the two positioning blocks; the axial position of the positioning rod 282 is adjusted so that the positioning rod 282 contacts the positioning surface 15 of the elbow joint part 10, and the positioning of the elbow joint part 10 is completed; conversely, when disassembling the elbow joint part 10, the first pressure plate assembly 30 and the second pressure plate assembly 40 are removed, and then the positioning rod 282 is adjusted away from the positioning surface 15 of the elbow joint part 10, and the processed elbow joint part 10 can be removed.

[0030] Specifically, according to the structural characteristics of the elbow joint part 10, the pressure plate assembly in this embodiment includes a first pressure plate assembly 30 and a second pressure plate assembly 40; the first pressure plate assembly 30 includes a first pressure plate 31, a first stud 32 and a first clamping nut 33. A threaded hole is provided on the second pad 23 for the lower end of the first stud 32 to be screwed in. A through hole is provided in the middle of the first pressure plate 31 for the first stud 32 to pass through. After the first stud 32 passes through the first pressure plate 31, it is threadedly connected with the first clamping nut 33. One end of the first pressure plate 31 contacts the upper end surface of the support rod 24, and the other end contacts the inner wall of the mounting hole 17 of the elbow joint part 10. By tightening the first clamping nut 33 to press the first pressure plate 31, the first flange surface 13 at the end where the mounting hole 17 of the elbow joint part 10 is located can be pressed onto the adjusting nut 27. Similarly, the second pressure plate assembly 40 includes a second pressure plate 41, a second stud 42 and a second clamping nut 43. The first pad block 22 is provided with a thread for the lower end of the second stud 42 to be screwed in, and the flange hole of the elbow joint part 10 is sleeved outside the second stud 42. Similarly, by tightening the second clamping nut 43, the second pressure plate 41 can be pressed against the third flange surface 16, and then the second flange surface 14 is fitted on the adjusting nut 27 located on the first pad block 22; thereby, the positioning and clamping of the elbow joint part 10 is achieved; when disassembling, the first clamping nut 33 and the second clamping nut 43 are rotated in reverse to disassemble the first pressure plate 31 and the second pressure plate 41, and at the same time, the positioning rod 282 is kept away from the elbow joint part 10, so that the elbow joint part that has been processed can be removed.

[0031] The tooling fixture of the present invention can achieve high-precision processing of the elbow joint of the robot, improve processing efficiency and product quality, reduce the scrap rate, and provide a strong guarantee for the performance improvement and stable operation of the robot.

[0032] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An elbow joint parts processing tool, used for positioning and clamping elbow joint parts (10), characterized in that: The elbow joint component (10) comprises a base plate (21), a support rod (24), two positioning blocks (26), a plurality of adjusting nuts (27) and a positioning rod (28); the positioning surfaces of the two positioning blocks (26) are extended to intersect in a V-shape, the positioning rod (28) is located on the inner sides of the two positioning blocks (26), and the outer peripheral surface of the elbow joint component (10) is in contact with the positioning blocks (26) and the positioning rod (28) respectively; the support rod (24) and the adjusting nut (27) are connected to the base plate (21); and the elbow joint component (10) is further comprised of a pressure plate assembly, the pressure plate assembly presses the elbow joint component (10) onto the adjusting nut (27) so that the first flange surface (13) and the second flange surface (14) of the elbow joint component (10) are in contact with the upper end surface of each adjusting nut (27).

2. The elbow joint parts processing tool according to claim 1, characterized in that: It also comprises a first padding block (22) and a second padding block (23); the positioning rod (28) is fixedly arranged on the upper end surface of the first padding block (22), the two positioning blocks (26) are fixedly arranged on the upper end surface of the second padding block (23), and at least two adjusting nuts (27) are evenly arranged on the upper end surfaces of the first padding block (22) and the second padding block (23).

3. The elbow joint parts processing tool according to claim 2, characterized in that: The pressure plate assembly comprises a first pressure plate assembly (30) and a second pressure plate assembly (40); one end of the first pressure plate (31) of the first pressure plate assembly (30) contacts the upper end surface of the support rod (24), and the other end contacts the inner wall of the mounting hole (17) of the elbow joint part (10).

4. The elbow joint parts processing tool according to claim 3, characterized in that: It also comprises an adjustment block (25), the adjustment block (25) being located between the upper end surface of the support rod (24) and the first pressing plate (31), the adjustment block (25) being threadedly connected to the support rod (24).

5. The elbow joint parts processing tool according to claim 2, characterized in that: The adjusting nut (27) is threadedly connected to the first raising block (22) and the second raising block (23) respectively.

6. The elbow joint parts processing tool according to claim 5, characterized in that: The adjusting nut (27) comprises a threaded section (271) and a rotating section (272) located at the upper end of the threaded section (271); the upper end surface (273) of the rotating section (272) is a working plane.

7. The elbow joint parts processing tool according to claim 6, characterized in that: The upper end surface (273) of the rotating section (272) is provided with a tooth protrusion.

8. The elbow joint parts processing tool according to claim 1, characterized in that: It also includes a positioning rod (282), the positioning rod (28) is provided with a through hole (281), and the through hole (281) is perpendicular to the axis of the positioning rod (28); the positioning rod (282) is connected to the through hole (281), and its end is in contact with a positioning surface (15) of the elbow joint part (10).

9. The elbow joint parts processing tool according to claim 2, characterized in that: The first raising block (22) is provided with two adjusting nuts (27).

10. The elbow joint parts processing tool according to claim 9, characterized in that: The second raising block (23) is provided with three adjusting nuts (27), and the center line connecting them forms a triangle.

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