Multi-armed rotating structure

Abstract

Multi-armed rotary structure, characterized by the fact that it includes the following: a central base, wherein several circumferentially distributed support arms are integrally formed on the outer wall of the central base, the support arms all extending in a direction away from the central base, wherein the central base and the respective support arms are each a hollow structure produced by 3D printing.

Description

Technical area

[0001] The present utility model relates to the technical field of the mechanical accessory, in particular a multi-armed rotating structure. State of the art

[0002] To meet the requirements of automated production in industrial manufacturing, various mechanical accessories are developed, and the main motor and other drive sources are used to power the mechanical accessories for machining the workpiece.

[0003] For large and heavy workpieces, or when multiple workpieces need to be picked up and placed simultaneously, the structural strength of the mechanical accessories used must be sufficient to meet the load requirements of the workpiece. Currently, the structural strength of mechanical accessories is achieved by increasing their structural volume.

[0004] However, this method of increasing structural volume to enhance structural strength has the following disadvantages: While the structural strength is increased, the volume and weight of the mechanical accessories themselves also increase significantly, necessitating a main motor with a higher load-carrying capacity to drive these accessories. In other words, for a main motor with a given load-carrying capacity, the increased weight of the mechanical accessories mounted on its output shaft reduces the weight of the workpiece being loaded, resulting in excessive stress on the mechanical accessories from the main motor. To address these shortcomings, the lightweight, multi-arm rotary structure of the present application is provided, which can effectively reduce weight while maintaining overall structural strength. Content of the utility model

[0005] The purpose of the present utility model is to overcome the shortcomings of the prior art and to provide a lightweight, multi-armed rotating structure that effectively reduces weight while ensuring overall structural strength.

[0006] The purpose of this utility model is achieved through the following technical solutions: A multi-armed rotating structure comprising the following: a central base, wherein several circumferentially distributed support arms are integrally formed on the outer wall of the central base, the support arms all extending in a direction away from the central base, wherein the central base and the respective support arms are each a hollow structure produced by 3D printing.

[0007] Optionally, several 3D printed stereo frames are arranged within the central base and the respective support arms, with the respective 3D printed stereo frames being connected to each other in sequence, so that a hollow structure is formed between each 3D printed stereo frame.

[0008] Optionally, one of the 3D printed stereo frames includes several support rods, with one end of each support rod being connected to each other and the other end of each support rod being connected to the adjacent 3D printed stereo frames, so that a hollow structure is formed between each support rod.

[0009] The central base can optionally be provided with a through-hole.

[0010] Optionally, several screw holes are open on the central base, with the screw holes arranged at uniform angles around the circumference of the through-hole.

[0011] Optionally, a groove is opened on the top of the central base, with the through hole and the respective screw holes located on the inner bottom wall of the groove and the groove and the through hole being arranged coaxially.

[0012] Optionally, the support arm includes a main connecting section, a middle connecting section and a rear connecting section, which are connected end to end in succession, with the main connecting section being connected to the middle base.

[0013] Optionally, the main connecting section includes several main connecting rods, with one end of each main connecting rod being connected to the central base and the other end of each main connecting rod being connected to the central connecting section.

[0014] Optionally, the central connecting section includes an X-shaped connecting frame and two side blocks, with the X-shaped connecting frame being connected to each of the two side blocks and each of the side blocks being connected to two of the main connecting bars.

[0015] Optionally, the rear connecting section includes two rear connecting rods, with one end of each rear connecting rod being connected to the two side blocks and the other ends of the two rear connecting rods being connected to each other.

[0016] Compared to the prior art, the present utility model has at least the following advantages: The multi-armed rotary structure according to the present utility model comprises a central base, with several circumferentially distributed support arms integrally molded onto the outer wall of the central base. The support arms all extend in a direction away from the central base, and the central base and the respective support arms are each hollow structures manufactured using 3D printing. Compared to prior art mechanical accessories with solid structures, the multi-armed rotary structure of the present application is manufactured using 3D printing, and its interior is a hollow structure, which effectively reduces the overall weight while simultaneously ensuring overall structural strength. With the same load-bearing capacity of the drive source, the weight fraction of the workpiece can be effectively increased by reducing the weight fraction of the multi-armed rotary structure. Figures

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the figures required for use in these embodiments are briefly presented below. Understandably, the figures below only show some embodiments of this utility model and should therefore not be considered a limitation of its scope. General technical personnel in this field can create further figures based on these figures without any creative effort. Fig. Figure 1 is a schematic representation of the structure of a multi-armed rotary structure of an embodiment of the present utility model; Fig. 2 is a front view of the in Fig. 1 multi-armed rotating structure shown; Fig. 3 is a rear view of the in Fig. 1 multi-armed rotating structure shown; Fig. Figure 4 is a schematic representation of a combined structure of a 3D printed stereo frame of an embodiment of the present utility model; Fig. Figure 5 is a schematic representation of another angle of the combined setup of the in Fig. 4 3D printed stereo frames shown; Fig. Figure 6 is a schematic representation of a 3D printed stereo frame in an embodiment of the present utility model.

[0018] Reference symbols in the figures: 10. Multi-arm rotary structure; 100. Center base; 200. Support arm; 300. 3D-printed stereo frame; 310. Support rod; 110. Through hole; 120. Screw hole; 130. Groove; 210. Main connecting section; 220. Center connecting section; 230. Rear connecting section; 211. Main connecting rod; 221. X-shaped connecting frame; 222. Side block; 231. Rear connecting rod; 2111. First mounting hole; 2311. Second mounting hole. Specific embodiments

[0019] To facilitate understanding of the present utility model, it is described in more detail with reference to the accompanying figures. The preferred embodiment of the present utility model is illustrated in the figures.

[0020] As in the Fig. Figures 1 to 4 show a multi-armed rotary structure 10 comprising a central base 100, wherein several circumferentially distributed support arms 200 are integrally formed on the outer wall of the central base 100, the support arms 200 all extending in a direction away from the central base 100, wherein the central base 100 and the respective support arms 200 are each a hollow structure produced by 3D printing.

[0021] It should be noted that the respective support arms 200 are attached at uniform angles around the circumference of the outer wall of the central base 100, and that the central base 100 and the respective support arms 200 form an integrally shaped structure manufactured using 3D printing. The interior of the central base 100 and the respective support arms 200 is a hollow structure. During installation and use, the output shaft of the main motor or other drive source is fixed to the central base 100. Subsequently, a pick-up and placement tool is installed at the end of the support arm 200 facing away from the central base 100, enabling the main motor to drive the multi-armed rotary structure 10 of the present application to pick up and place multiple workpieces.In contrast to prior art mechanical accessories with a solid structure, the multi-armed rotary structure 10 of the present application is manufactured using 3D printing and has a hollow interior, which effectively reduces the overall weight while ensuring overall structural strength. With the same load-bearing capacity of the drive source, the weight fraction of the workpiece can be effectively increased by reducing the weight fraction of the multi-armed rotary structure 10.

[0022] As in the Fig. Figures 4 to 6 show that in one embodiment several 3D printed stereo frames 300 are arranged within the central base 100 and the respective support arms 200, wherein the respective 3D printed stereo frames 300 are connected to each other in succession, so that a hollow structure is formed between the respective 3D printed stereo frames 300.

[0023] It should be noted that the outer walls of the central base 100 and the respective support arms 200 are dense wall structures, i.e., the overall structure of the central base 100 and the respective support arms 200 is a hollow shell structure, and several 3D-printed stereo frames 300 are arranged within the central base 100 and the respective support arms 200, the respective 3D-printed stereo frames 300 being connected to each other, and the 3D-printed stereo frames 300 adjacent to the inner walls of the central base 100 and the respective support arms 200 also being firmly connected to the inner walls of the central base 100 and the respective support arms 200, so that the multi-armed rotary structure 10, which is formed from the central base 100, the respective support arms 200 and the respective 3D-printed stereo frames 300, can This ensures overall structural strength, while a hollow structure is formed between the respective 3D printed stereo frames.

[0024] As in the Fig. As shown in Figures 4 to 6, in one embodiment the 3D printed stereo frame 300 comprises several support rods 310 in one of the 3D printed stereo frames 300, wherein one end of each support rod 310 is connected to each other and the other end of each support rod 310 is connected to the adjacent 3D printed stereo frames 300, so that a hollow structure is formed between each support rod 310.

[0025] It should be noted that one end of each support rod 310 is connected and fastened, and the other end of each support rod 310 extends outwards, so that the 3D-printed stereo frame 300 has a star-shaped structure. In one embodiment, one of the 3D-printed stereo frames 300 comprises eight support rods 310, four of which are in the first group and the remaining four in the second group, with the four support rods 310 of the first group being arranged opposite to the four support rods 310 of the second group. The four support rods 310 of the first / second group are distributed at uniform angles along the central axis. This connects the widely separated ends of the eight support rods 310 with the support rods 310 of neighboring other 3D-printed stereo frames 300, creating a lattice-like (i.e., ordered, repeating lattice or grid structure) hollow structure between the multiple 3D-printed stereo frames 300.In this way, the multi-armed rotary structure 10, manufactured using 3D printing, can effectively reduce the overall weight while ensuring structural strength.

[0026] As in the Fig. As shown in Figures 1 to 3, in one embodiment the central base 100 is provided with a through-hole 110. It should be noted that the through-hole 110 is located in the center of the central base 100, so that the output shaft of a main motor or other drive source can be installed through the through-hole 110 and attached to the multi-armed rotary structure 10.

[0027] As in the Fig. As shown in Figures 1 to 3, in one embodiment several screw holes 120 are open on the central base 100, wherein the screw holes 120 are each arranged at uniform angles around the circumference of the through hole 110.

[0028] In this way, after the screw has been passed through the screw hole 120, it can be installed and attached to the output shaft of the main motor or another drive source.

[0029] As in the Fig. As shown in Figures 1 to 3, in one embodiment a groove 130 is opened on the top of the central base 100, wherein the through hole 110 and the respective screw holes 120 are located on the inner bottom wall of the groove 130 and the groove 130 and the through hole 110 are arranged coaxially.

[0030] In this way, the flange and other components can be conveniently clamped into the groove 130 to stably install and fasten the output shaft of the main motor or other drive source to the multi-arm rotary structure 10.

[0031] As in the Fig. As shown in Figures 1 to 3, in one embodiment the support arm 200 comprises a main connecting section 210, a central connecting section 220 and a rear connecting section 230, which are connected end to end in succession, wherein the main connecting section 210 is connected to the central base 100.

[0032] It should be noted that the main connecting section 210, the central connecting section 220, and the rear connecting section 230 are connected end to end along a straight line. The main connecting section 210 is rigidly connected to the central base 100. To further reduce the weight of the multi-arm rotary structure 10 while simultaneously ensuring its overall structural strength, the support arm 200 is provided with different shapes at various positions.

[0033] As in the Fig. As shown in Figures 1 to 3, in one embodiment the main connecting section 210 comprises several main connecting rods 211, wherein one end of each of the respective main connecting rods 211 is connected to the central base 100 and the other end of each of the respective main connecting rods 211 is connected to the central connecting section 220.

[0034] It should be noted that the respective main connecting rods 211 have a spacer design to reduce the space occupied by materials. In this way, while ensuring the structural strength of the support arm 200, the weight can be reduced and convenient mounting of the main motor and other parts on the support arm 200 is made possible.

[0035] As in the Fig. As shown in Figures 1 to 3, in one embodiment the central connecting section 220 comprises an X-shaped connecting frame 221 and two side blocks 222, wherein the X-shaped connecting frame 221 is connected to each of the two side blocks 222 and each of the side blocks 222 is connected to two of the main connecting rods 211.

[0036] In this way, a through-hole connection is formed in the middle of the central connecting section 220, which consists of the X-shaped connecting frame 221 and the two side blocks 222, ensuring that the central connecting section 220 has sufficient structural strength while reducing the weight of the central connecting section 220.

[0037] Furthermore, as described in the Fig. Figures 1 to 3 show that in one embodiment the rear connecting section 230 comprises two rear connecting rods 231, wherein one end of each of the two rear connecting rods 231 is connected to the two side blocks 222 and the other ends of the two rear connecting rods 231 are connected to each other.

[0038] It should be noted that the distance between the two rear connecting rods 231 gradually decreases in a direction away from the central connecting section 220, so that the ends are eventually connected. In this way, the weight of the support arm 200 can be further reduced while simultaneously ensuring its structural strength. In particular, the total cross-sectional area of ​​the main connecting section 210, the central connecting section 220, and the rear connecting section 230 gradually decreases successively. In this way, the constructed support arm 200 has sufficient overall structural strength. Furthermore, in one embodiment, the outer diameter of the rear connecting rod 231 gradually decreases in a direction away from the side block 222.Since the rear connecting rod 231 is located at the rear end, the overall weight of the support arm 200 is further reduced by the reduction in diameter.

[0039] Furthermore, in one embodiment, the main connecting rod 211, the X-shaped connecting frame 221, the side block 222 and the rear connecting rod 231 are an integrally molded structure produced by 3D printing, and several 3D-printed stereo frames 300 are formed within the main connecting rod 211, the X-shaped connecting frame 221, the side block 222 and the rear connecting rod 231.

[0040] As in the Fig. As shown in Figures 1 to 3, in one embodiment two of the main connecting rods 211 are provided with first mounting holes 2111 and one end, at which two rear connecting rods 231 are connected, is provided with a second mounting hole 2311.

[0041] It should be noted that, for example, several first mounting holes 2111 are open, allowing a drive source, such as a small motor, to be securely installed on the main connecting section 210 by passing screws through the respective mounting holes. A second mounting hole 2311 is open at the rear end of the rear connecting rod 231, allowing a pulley and other components to be attached to the rear end of the rear connecting rod 230 with screws. The pulley and the small motor installed on the main connecting section 210 can be connected via a belt, thus securely attaching a suction cup and other components for picking up and placing workpieces to the pulley, enabling the small motor to rotate the workpiece relative to the support arm 200.Since the multi-arm rotary structure 10 has several support arms 200, the present application discloses, for example, a specific embodiment with four support arms 200. The main motor drives the multi-arm rotary structure 10 as a whole, so that each workpiece rotates relative to the central base 100, and the small motors installed on the respective support arms 200 can rotate the corresponding workpieces independently of one another. In this way, the multi-arm rotary structure 10 of the present application can be installed on a drive source such as a main motor to perform the picking up and positioning of multiple workpieces.When dealing with heavy workpieces or when workpieces are picked up and placed simultaneously, a main motor with a higher load-bearing capacity is often required due to the high overall weight of the workpieces, especially when existing mechanical accessories with a solid structure are used as connecting elements between the main motor and the workpieces. The multi-arm rotary structure 10 provided in the present application is manufactured using 3D printing and has a hollow interior. This design reduces the overall weight while maintaining structural strength, thereby lowering the load-bearing capacity requirements of the main motor. In other words, for the same load-bearing capacity of the drive source, the weight fraction of the workpiece can be effectively increased by reducing the weight fraction of the mechanical accessories.

[0042] The aforementioned embodiments merely represent some embodiments of the present utility model, the description of which is relatively specific and detailed, but cannot be construed as limiting the scope of protection of the utility model patent. Unless expressly defined otherwise, the installation / fastening / arrangement mentioned in the present utility model can be understood, among other things, without being limited to locking and fastening with screws, welding, or bonding with adhesives, whereby the adhesives used may be commercially available finished products. It should be noted that for general technical personnel in this field, several modifications and improvements are possible without deviating from the concept of the present utility model, and all such modifications and improvements fall within the scope of protection of the present utility model.The scope of protection of the present utility model patent is therefore determined by the attached claims.

Claims

[1] Multi-armed rotary structure, characterized by that it includes the following: a central base, wherein several circumferentially distributed support arms are integrally formed on the outer wall of the central base, the support arms all extending in a direction away from the central base, wherein the central base and the respective support arms are each a hollow structure produced by 3D printing. [2] Multi-armed rotary structure according to claim 1, characterized by that several 3D printed stereo frames are arranged within the central base and the respective support arms, with the respective 3D printed stereo frames being connected to each other in succession, so that a hollow structure is formed between the respective 3D printed stereo frames. [3] Multi-armed rotary structure according to claim 2, characterized by, that in one of the 3D printed stereo frames comprises several support rods, with one end of each support rod being connected to each other and the other end of each support rod being connected to the adjacent 3D printed stereo frames, so that a hollow structure is formed between each support rod. [4] Multi-armed rotary structure according to claim 1 or 3, characterized by that the central base is provided with a through hole. [5] Multi-armed rotary structure according to claim 4, characterized by that several screw holes are open on the central base, with the screw holes each arranged at uniform angles around the circumference of the through hole. [6] Multi-armed rotary structure according to claim 5, characterized by , that a groove is opened on the top of the central base, wherein the through hole and the respective screw holes are located on the inner bottom wall of the groove and the groove and the through hole are arranged coaxially. [7] Multi-armed rotary structure according to claim 1 or 3, characterized by , that the support arm comprises a main connecting section, a middle connecting section and a rear connecting section, which are connected end to end in succession, with the main connecting section being connected to the middle base. [8] Multi-armed rotary structure according to claim 7, characterized by , that the main connecting section comprises several main connecting rods, with one end of each main connecting rod being connected to the central base and the other end of each main connecting rod being connected to the central connecting section. [9] Multi-armed rotary structure according to claim 8 is characterized by, that the central connecting section comprises an X-shaped connecting frame and two side blocks, wherein the X-shaped connecting frame is connected to each of the two side blocks and each of the side blocks is connected to two of the main connecting bars. [10] Multi-armed rotary structure according to claim 9 is characterized by , that the stern connecting section comprises two stern connecting rods, with one end of each of the two stern connecting rods being connected to the two side blocks and the other ends of the two stern connecting rods being connected to each other.

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