3D printing pneumatic drill support and drilling robot

Abstract

A 3D printing pneumatic drill support and a drilling robot belong to the technical field of mechanical manufacturing, and comprise a hollow support body, a plurality of mounting parts are fixedly arranged on the front side of the bottom of the support body at intervals in the length direction of the support body, pneumatic drill mounting holes are formed in the mounting parts, and an air channel is formed in the support body. A plurality of air inlets and a plurality of air outlets are formed in the support body and communicate with each other through air channels, the air outlets are used for being connected with an air drill, the whole air drill support is integrally formed in a 3D printing mode, the manufacturing period is shortened, the air channels are formed in the support body, and on the premise that the overall strength is guaranteed, the manufacturing cost is reduced. And meanwhile, due to the arrangement mode of the built-in air channel, excessive air pipes and connecting pieces do not need to be externally arranged, the compactness of the overall structure of the tool is high, and the tool is more suitable for application scenes with the high requirement for the compactness of the structure of the tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, especially a kind of 3D printing air drill support and drilling robot. BACKGROUND

[0002] In the field of modern manufacturing, robot drilling technology has been widely applied in the processing and manufacturing links of various parts, and robot drilling can accurately implement drilling operation according to preset program with the advantages of high precision and good repeatability, which not only helps to improve production efficiency, but also has important significance for ensuring product quality.

[0003] The robot is connected with the air drill through the support, in order to improve the drilling efficiency of the robot, a plurality of air drills are generally arranged and installed on the support in sequence, and the air drills are connected with the air source through pipelines, so that one robot can be used to operate multiple air drills simultaneously to realize synchronous processing of multiple parts and effectively improve the processing efficiency.

[0004] In the conventional air drill installation mode, the air pipe pipeline is arranged externally, which requires additional space for arranging the air pipe, resulting in lack of compactness of the overall structure of the tooling. In the robot drilling operation scene, especially for those application scenes with high requirements for compactness of tooling structure, this external air path layout can cause low space utilization efficiency and inconvenient operation. In addition, the external air pipe pipeline and its connecting parts also increase the overall weight of the tooling. In the case of limited robot load capacity, this additional weight can further increase the load pressure of the robot, affecting the number of air drills, and thus affecting the improvement of processing efficiency. Moreover, the existing air drill support is mostly manufactured by traditional machining method, and the support itself is heavy, which also affects the number of air drills. SUMMARY

[0005] To solve the technical problems in the above background art that the existing robot air drill support is heavy, and needs to be equipped with external air pipe, connecting parts and other structures, which occupies a lot of robot load, affects the number of air drills, and hinders the improvement of processing efficiency, the utility model provides a 3D printing air drill support.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model provides a kind of 3D printing air drill support, including the support main body of transverse arrangement, support main body is openwork structure, the bottom front side of support main body is fixed with several installation parts along its length direction interval, installation part is equipped with air drill mounting hole, the inside of support main body is equipped with air passage, support main body is equipped with several air inlets and several air outlets, air inlet and air outlet are communicated by air passage, air outlet is used to connect with air drill, air drill support is integrally formed using the mode of 3D printing, while shortening production cycle, improve production efficiency, effectively reduce tooling weight, guarantee overall strength, and air passage is arranged in the inside of support main body, air drill is directly communicated with the air passage in the inside of support main body by air outlet, air drill is planned in the inside of support main body, under the premise of guaranteeing overall strength, maximum degree reduces the usage amount of material, to effectively reduce the overall weight of tooling, while the setting mode of built-in air passage, without external excessive air pipe and connecting piece, the overall structure of tooling is compact, more applicable to the application scene of higher compactness requirement to tooling structure.

[0008] Preferably, the cross-sectional shape of the air passage is rhombic, and the corners of the rhombic air passage are rounded. This structure of air passage can ensure that the printing hole does not collapse, and can be directly synchronized 3D printed without adding support, so that a hollow air passage with various complex structures can be designed inside the support main body. The rounded structure can avoid stress concentration and deformation and cracking of the support during printing and use.

[0009] Preferably, the top end of the installation part is fixedly connected with the support main body, a gap is formed at the middle position of the bottom end of the installation part, the gap is communicated with the air drill mounting hole above it, the bottom end of the installation part is provided with a first bolt hole transversely penetrating through the side wall thereof, the gap is provided to make the installation part have a deformable ability, facilitating the installation / removal of the air drill, and the first bolt hole is used for the installation of a bolt, so that the gap on both sides is pulled tightly by the bolt to extrude and fix the air drill in the air drill mounting hole.

[0010] Preferably, the air inlet is arranged at the rear side of the middle position of the bottom of the support main body, and the air outlet is arranged at the rear side of the support main body, so that the support main body can shield and protect the air drill and the air inlet pipe.

[0011] Preferably, the number of air outlets is the same as and corresponds to the number of installation parts, facilitating the connection of the air drill with the internal air passage of the support, and optimizing the connection of the air path.

[0012] Preferably, the air inlet and the air outlet are both provided with internal threads, facilitating quick connection with the air path without the need for other connecting pieces.

[0013] Preferably, the second bolt hole and the positioning pin hole are arranged at the middle position of the bottom of the support body, the second bolt hole and the positioning pin hole are arranged at intervals in the circumferential direction, the positioning pin hole is used for cooperating with the positioning pin on the robot to realize quick docking positioning, and the second bolt hole is used for being fixed and connected with the robot through the bolt.

[0014] Preferably, a plurality of first hollow parts are arranged at intervals along the length direction of the support body, the first hollow part is located on one side of the mounting part, a second hollow part is arranged between two adjacent first hollow parts, the length of the second hollow part is the same as the interval between two adjacent mounting parts, a third hollow part is arranged at the middle position of the support body, and the second bolt hole and the positioning pin hole are distributed on the circumferential side of the third hollow part, so that the weight of the support body is further reduced, and the strength of the support body is ensured.

[0015] Preferably, the corners of the first hollow part, the second hollow part and the third hollow part are all circular corner structures, so that stress concentration at the corners can be effectively reduced, the risk of damage of the hollow part under stress is reduced, the weight of the support body is reduced by arranging the hollow part, and material cost is saved.

[0016] The utility model provides a kind of drilling robot, 3D printing air drill support is adopted.

[0017] It can be seen from the above technical scheme that the utility model has the advantages that:

[0018] 1, a plurality of air drills can be simultaneously mounted on one support body, the mounting positions of the plurality of air drills are fixed, and have corresponding air outlets, the air passage is arranged inside the support body, the air drill is directly communicated with the air passage in the support body through the air outlet, the air drill does not need excessive external air pipe, connecting piece and the like during installation, the overall structure is compact, the weight is reduced, the support body is made of 3D printing, the weight of the overall tooling is effectively reduced, the overall strength is ensured, the excessive occupation of the load of the robot is avoided, the installation and use of the plurality of air drills can be guaranteed, the drilling efficiency can be improved by installing the plurality of air drills.

[0019] 2, the cross section shape of the air passage is diamond, the corners of the diamond air passage are rounded, the air passage with the structure can ensure that the printing hole does not collapse, can be directly and synchronously 3D printed without adding support, so that hollow air passages with various complex structures can be designed inside the support body, the rounded structure can avoid deformation and cracking of the support during printing and use caused by stress concentration.

[0020] 3、The installation part and the air inlet are arranged at the bottom of the support body, the air drill and the air inlet pipe can be shielded and protected by the support body, the installation part is provided with a gap and a first bolt hole, so that the installation part has a deformable capacity, the installation / removal of the air drill is facilitated, and the air drill in the air drill mounting hole can be extruded and fixed by tightening the plate members on both sides of the gap through bolts.

[0021] 4、The support body is provided with a plurality of hollow parts, and the corners of the hollow parts are of a rounded structure, which can effectively reduce stress concentration at the corners, thereby reducing the risk of damage to the hollow parts under stress, and the arrangement of the hollow parts can also significantly reduce the weight of the support body, ensure the strength of the whole support, and save material cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the present application, the drawings used in the description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The overall structure of the 3D printing air drill support according to one or more embodiments of the present application Figure 1 ;

[0024] Figure 2 The overall structure of the 3D printing air drill support according to one or more embodiments of the present application Figure 2 ;

[0025] Figure 3 The overall structure of the 3D printing air drill support according to one or more embodiments of the present application Figure 2 ;

[0026] The components represented by the reference numerals in the drawings are:

[0027] 1, support body; 2, installation part; 3, air drill mounting hole; 4, first bolt hole; 5, gap; 6, air inlet; 7, air outlet; 8, second bolt hole; 9, positioning pin hole; 10, first hollow part; 11, second hollow part; 12, third hollow part. DETAILED DESCRIPTION

[0028] In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be described clearly and completely in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the patent.

[0029] Embodiment 1

[0030] In a typical embodiment of the utility model, as shown in Figures 1-3 A 3D printing gas drill support is provided, comprising: a support body 1 and a plurality of mounting parts 2, the support body 1 is horizontally arranged, the plurality of mounting parts 2 are vertically fixedly arranged at the bottom of the support body 1, and the plurality of mounting parts 2 are sequentially and spacedly arranged along the length direction of the support body 1, the inside of the support body 1 is provided with an air channel, a plurality of air inlets 6 and a plurality of air outlets 7 are arranged on the support body 1, the air inlets 6 and the air outlets 7 are communicated through the air channel, the mounting part 2 is used for limiting the installation of the gas drill, the air inlet end of the gas drill is connected with the air outlet 7, and the support body 1 is further provided with a robot connecting area, which is connected with the robot in a bolt connection mode.

[0031] As shown in Figures 1-2 The mounting part 2 is in the form of a rectangular plate structure, the top end of the mounting part 2 and the support body 1 are fixedly connected together in an integral forming mode, a gap 5 is formed at the middle position of the bottom end of the mounting part 2, a gas drill mounting hole 3 is formed at the central position of the mounting part 2, the gas drill can pass through the gas drill mounting hole 3 and be fixed, the gap 5 is communicated with the gas drill mounting hole 3, and the gap 5 is arranged to enable the mounting part 2 to be deformable, thereby facilitating the installation / removal of the gas drill.

[0032] In order to facilitate the fixation of the gas drill, first bolt holes 4 are arranged at the two sides of the mounting part 2, the first bolt holes 4 are located at the side of the gas drill mounting hole 3 away from the support body 1 (which can also be understood as the bottom end of the mounting part 2), and the first bolt holes 4 horizontally penetrate the side wall of the bottom end of the mounting part 2, so as to be used for the installation of bolts, thereby the plates on the two sides of the gap 5 are pulled tightly through the bolts, so as to extrude and fix the gas drill in the gas drill mounting hole 3.

[0033] In the embodiment, the support body 1 and the mounting part 2 are integrally formed by an aluminum alloy material, the aluminum alloy has the characteristics of small density and high strength, and is integrally formed in a 3D printing mode based on the SLM process, so that the performance advantages of the aluminum alloy material can be fully utilized, the production cycle is shortened, the production efficiency is improved, the weight of the tooling is effectively reduced, and the overall strength is guaranteed.

[0034] The air channel is arranged inside the support body 1, the air drill is directly communicated with the air channel in the support body 1 through the air outlet 7, the compressed air flow channel for the air drill is planned inside the support body 1, the use amount of the material is reduced to the maximum extent on the premise of ensuring the overall strength, thereby effectively reducing the overall weight of the tool, and the setting mode of the built-in air channel does not need to be provided with too many air pipes outside, the overall structure of the tool is compact, and the tool is more suitable for application scenes with high compactness requirement.

[0035] In the embodiment, six installation parts 2 are arranged at the front side of the bottom of the support body 1 at intervals, the air inlet 6 is arranged at the rear side of the middle position of the bottom of the support body 1, and the air outlet 7 is arranged at the rear side of the support body 1. In this way, the air drill and the air inlet pipe can be shielded and protected by the support body 1. The air outlet 7 is provided with a plurality of air outlets 7, the number of the air outlets 7 is the same as and corresponds to the number of the installation parts 2, the air inlet 6 and the air outlet 7 are provided with internal threads, and the internal threads of the air inlet 6 and the air outlet 7 are integrally formed by 3D printing, thereby avoiding secondary processing, shortening the tool manufacturing cycle, and ensuring the tool precision.

[0036] As shown in the embodiment, Figure 3 The cross-sectional shape of the air outlet 7 and the air channel is a rhombus, and the corners of the rhombus are round structures. The air channel with this structure can ensure that the printing hole will not collapse, and can be directly and synchronously 3D printed without adding support, so that a hollow air channel with various complex structures can be designed inside the support body 1. The round structure can avoid the deformation and cracking of the support in the printing and use process caused by stress concentration. In the embodiment, the corners of the rhombic air channel are chamfered with a small radius of 0.5-2 mm.

[0037] It can be understood that in other embodiments, the air channel can also be provided in a circular straight hole structure, which can be determined according to actual design requirements, and will not be limited here.

[0038] The robot connection area is located at the middle position of the bottom of the support body 1, a plurality of second bolt holes 8 and a plurality of positioning pin holes 9 are arranged at the robot connection area, the second bolt holes 8 and the positioning pin holes 9 are arranged at intervals along the circumferential direction, the positioning pin holes 9 are used for cooperating with the positioning pins on the robot to realize quick docking positioning, and the second bolt holes 8 are used for being connected and fixed with the robot through bolts.

[0039] It can be understood that the first bolt hole 4 and the second bolt hole 8 are provided with internal threads, and the internal threads in the first bolt hole 4 and the second bolt hole 8 are integrally formed by 3D printing, thereby avoiding secondary processing.

[0040] In order to further reduce the weight of the support, a plurality of hollow parts are arranged on the support body 1, and the specific arrangement is shown in Figure 1 andFigure 2 As shown, the support body 1 is provided with a plurality of hollow parts along the length direction thereof, which are specifically divided into first hollow parts 10, second hollow parts 11 and third hollow parts 12. The first hollow parts 10 are located at one side of the mounting parts 2, and one second hollow part 11 is arranged between two adjacent first hollow parts 10. The length of the second hollow part 11 is the same as the spacing between two adjacent mounting parts 2, and the length of the first hollow part 10 is smaller than that of the mounting part 2 and the second hollow part 11. The first hollow part 10 can reduce the weight while ensuring the strength of the support body 1 at the position where the mounting part 2 is arranged. The third hollow part 12 is arranged at the middle position of the support body 1, and the second bolt hole 8 and the positioning pin hole 9 are distributed on the side of the third hollow part 12.

[0041] The corners of the first hollow part 10, the second hollow part 11 and the third hollow part 12 are all circular, which can effectively reduce the stress concentration at the corners, thereby reducing the risk of damage of the hollow part under stress. In addition, the arrangement of the hollow part can significantly reduce the weight of the support body 1, while saving material cost.

[0042] In the embodiment, six air drills can be installed on one support body 1 at the same time. The installation positions of the six air drills are fixed, and each air drill has a corresponding air passage connecting port (air outlet 7). The overall structure is compact, and the air drill installation does not require excessive external air pipes, connecting pieces and the like, thereby reducing the weight. At the same time, the support body is made of aluminum alloy material and is 3D printed, which effectively reduces the weight of the overall tooling, ensures the overall strength, avoids excessive occupation of the load of the robot, and can ensure the installation and use of multiple air drills, thereby improving the drilling efficiency through the installation of multiple air drills.

[0043] Embodiment 2

[0044] In a typical embodiment of the utility model, a drilling robot is provided, which adopts the 3D printed air drill support mentioned in embodiment 1. A plurality of positioning pins and connecting holes are arranged at the position of the robot for connecting the air drill support. The positioning pins are used for quick positioning by cooperating with the positioning pin holes 9 on the support body 1, and the connecting holes are used for the installation of bolts. Through cooperation with the second bolt hole 8, the air drill support and the air drill robot are fixedly connected in a bolt connection mode.

[0045] The manufacturing and use process of the support body is as follows:

[0046] According to the load capacity of the robot, the specification of the gas drill, the process requirements of the drilling and the SLM process characteristics, a professional three-dimensional design software (such as UG, Catia, etc.) is used to design the overall model of the gas drill support. The gas inlet 6 and the gas outlet 7 positions of the gas channel are optimized according to the layout of the gas drill, so that the gas can be efficiently transmitted to each gas drill, ensuring the normal work of the gas drill during the drilling process. According to the SLM process characteristics and the characteristics of the aluminum alloy material, the internal part is selected to be rhombic, and the small radius chamfering treatment is performed on the corners, so that the support can be directly synchronized 3D printing without adding support, and the collapse and deformation in the printing process can be avoided. Thus, various complex hollow channels can be designed inside the tooling, and the small radius chamfering treatment of 1-2mm can be performed to avoid stress concentration and cracking of the support during printing and use;

[0047] The designed three-dimensional model is imported into a 3D printing equipment supporting the SLM process, and sufficient AlSi10Mg aluminum alloy powder material is filled. According to the predetermined process parameters (laser power is set to 400W, powder layer thickness is 30 microns, etc.), the SLM solutions 500 printing equipment is started to begin printing. During the printing process, the printing state is monitored in real time to ensure the quality of the support tooling.

[0048] After printing is completed, the support tooling is post-processed. The substrate and the workpiece are first taken out of the equipment, and the excess powder on the surface of the tooling is removed. Then, the substrate with the tooling is cut off from the substrate by wire cutting, and the support of the tooling is cleaned. If necessary, appropriate polishing can be performed. Then, the workpiece is cleaned using an ultrasonic cleaning machine, and the surface is treated by sandblasting to improve the smoothness of the tooling surface. At the same time, the quality of the tooling can be detected, such as using an industrial CT device to check whether there are defects in the internal structure, and using an endoscope to check the gas channel.

[0049] The gas pipe joint is installed on the gas inlet hole 6 of the support through threaded connection, and the support tooling is installed on the robot through the reserved second bolt hole 8 and positioning pin hole 9. The connection is completed by using bolts. After the connection is completed, it is checked whether the connection of the support tooling and the robot is stable, and necessary fine adjustment is performed.

[0050] Six gas drills are installed on the corresponding installation parts 2 on the surface of the tooling and are fixed by using screws. Then, the gas channel inside the support body 1 is connected to the adjacent gas drills through the gas outlet hole 7 and the gas pipe. When connecting, it is ensured that the gas pipe is tightly connected and there is no gas leakage. The power of the gas drill is turned on, and the speed, torque and other parameters of the gas drill are adjusted. The working state of the gas drill is checked by using a special detection device, and the related parameters of the gas drill are adjusted to ensure that the working state meets the requirements, and the cooperative work between the gas drill and the tooling is normal.

[0051] According to the process requirements of the drilling, a drilling program of the robot is written, the program including setting of parameters such as drilling point, depth, drilling sequence, etc., the support tool is installed and the air drill is debugged, then trial drilling is performed, the trial drilling result is observed, whether the drilling point and depth meet the process requirements is observed, the drilling program is optimized and adjusted according to the trial drilling result until the project target requirements are met.

[0052] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A 3D printed air drill holder, comprising: The horizontally arranged support body (1) is characterized in that the support body (1) is a hollow structure, and a number of mounting parts (2) are fixedly provided at intervals along the length direction of the bottom front side of the support body (1). The mounting parts (2) are provided with air drill mounting holes (3). The support body (1) is provided with an air passage. The support body (1) is provided with a number of air inlets (6) and a number of air outlets (7). The air inlets (6) and air outlets (7) are connected through the air passage. The air outlets (7) are used to connect with the air drill.

2. The 3D printing air drill bracket according to claim 1, characterized in that, The cross-sectional shape of the airway is rhomboid, and the corners of the rhomboid airway are rounded.

3. The 3D printing air drill bracket according to claim 1, characterized in that, The top of the mounting part (2) is fixedly connected to the bracket body (1). A gap (5) is provided at the middle position of the bottom end of the mounting part (2). The gap (5) is connected to the air drill mounting hole (3) located above it. The bottom end of the mounting part (2) is provided with a first bolt hole (4) that penetrates its side wall laterally.

4. The 3D printing air drill bracket according to claim 1, characterized in that, The air inlet (6) is located at the rear side of the bottom middle position of the bracket body (1), and the air outlet (7) is located at the rear side of the bracket body (1).

5. The 3D printing air drill bracket according to claim 1, characterized in that, The number of air outlets (7) is the same as the number of mounting parts (2) and they correspond one-to-one.

6. The 3D printing air drill bracket according to claim 1, characterized in that, Both the air inlet (6) and the air outlet (7) are provided with internal threads.

7. The 3D printing air drill bracket according to claim 1, characterized in that, The bracket body (1) has several second bolt holes (8) and several positioning pin holes (9) at the middle position of the bottom. The second bolt holes (8) and positioning pin holes (9) are spaced apart along the circumferential direction.

8. The 3D printing air drill bracket according to claim 7, characterized in that, The support body (1) is provided with a number of first hollow parts (10) at intervals along its length direction. The first hollow parts (10) are located on one side of the mounting part (2). A second hollow part (11) is provided between two adjacent first hollow parts (10). The length of the second hollow part (11) is the same as the distance between two adjacent mounting parts (2). The third hollow part (12) is located in the middle position of the support body (1). The second bolt hole (8) and the positioning pin hole (9) are distributed on the periphery of the third hollow part (12).

9. The 3D printing air drill bracket according to claim 8, characterized in that, The corners of the first hollow part (10), the second hollow part (11) and the third hollow part (12) are all rounded.

10. A drilling robot, characterized in that, The 3D-printed air drill bracket as described in any one of claims 1-9 was adopted.

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