Flexible joint assembly of industrial robot

Abstract

The utility model provides a flexible joint assembly of an industrial robot, and belongs to the technical field of industrial robots. Comprising a mounting frame, a connecting rod rotationally mounted on the surface of the mounting frame, a rotating rod hinged to the side surface of the connecting rod, a telescopic cylinder mounted at the end of the rotating rod in a matched mode, a telescopic rod fixedly mounted at the output end of the telescopic cylinder, a fixing block fixedly connected to the end of the telescopic rod and a protection assembly arranged on the side surface of the fixing block. And the elastic cushion is clamped in the center of the protection assembly. According to the utility model, through the mutual cooperative use of the structures, the flexibility and the motion range of the joint are improved, so that the robot can adapt to more diversified working scenes; the shock resistance and wear resistance of the joint are improved, and the service life of the assembly is prolonged; and through the design of the protection assembly and the elastic cushion, vibration and noise in the movement process are effectively reduced, and the stability and comfort of operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to industrial robot technical field, concretely relates to a flexible joint assembly of industrial robot. BACKGROUND

[0002] A flexible joint assembly of industrial robot refers to the joint part used in industrial robot, which can realize movement in multiple directions and flexible rotation, so that the robot can perform complex operation tasks, and through the joint work of different components, the joint assembly can realize flexible movement similar to human joints, including rotation, bending, stretching, etc. The design and manufacture of the flexible joint assembly need to consider factors such as power, accuracy, durability and reliability to ensure that the robot can work stably and efficiently when performing various tasks.

[0003] In the prior art, if a simple clamping joint is used for operation, the problem of unstable clamping may be encountered during use or clamping, which may cause the displacement or falling of the article during operation, thereby increasing the risk of article damage, especially when handling delicate or fragile articles, which not only affects the accuracy and efficiency of the operation, but also may cause economic loss and safety hazards; therefore, a flexible joint assembly of industrial robot is proposed. SUMMARY

[0004] The utility model discloses a flexible joint assembly of industrial robot, which aims to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A flexible joint assembly of industrial robot, comprising a mounting frame, a connecting rod rotatably mounted on the surface of the mounting frame, a rotating rod hingedly connected to the side surface of the connecting rod, a telescopic cylinder adaptively mounted on the end of the rotating rod, a telescopic rod fixedly mounted on the output end of the telescopic cylinder, a fixed block fixedly connected to the end of the telescopic rod, a protection assembly arranged on the side surface of the fixed block, and an elastic pad clamped in the center of the protection assembly.

[0007] As a preferred scheme of the utility model, the protection assembly comprises a fixed shell rotatably mounted on the side surface of the fixed block, a sliding assembly slidingly mounted on the inner wall of the fixed shell, an elastic assembly cooperated with the sliding assembly, and a fixed rod inserted into the inner cavity of the fixed shell.

[0008] As a preferred scheme of the utility model, the sliding assembly is provided with two symmetrical groups, and the sliding assemblies are cross-hingedly connected and arranged in the center of the fixed rod.

[0009] As a preferred scheme of the utility model, the protection assembly includes a sliding groove opened in the center of the fixed rod, a sliding block slidingly connected in the middle of the sliding groove, an extrusion spring fixedly connected at the bottom of the sliding block, and a connecting block fixedly installed at the side wall of the sliding block.

[0010] As a preferred scheme of the utility model, the protection assembly further includes a rotating rod hingedly connected at the center of the connecting block, a reinforcing block hingedly connected at the bottom of the rotating rod, a limiting rod rotationally connected at the bottom of the fixed rod, and a grab clamp fixedly installed at the bottom of the limiting rod.

[0011] As a preferred scheme of the utility model, the elastic assembly includes a buffer rod hingedly connected with the limiting rod, and a plug-in rod plugged in the center of the buffer rod.

[0012] As a preferred scheme of the utility model, the elastic assembly further includes a rotating shaft fixedly installed at the end of the plug-in rod, and a buffer spring fixedly connected at the bottom of the plug-in rod.

[0013] Compared with the prior art, the utility model has the beneficial effects that: through the mutual cooperation between the structures, the flexibility and the movement range of the joint are improved, so that the robot can adapt to more diversified working scenes; the impact resistance and wear resistance of the joint are improved, so that the service life of the assembly is prolonged; through the design of the protection assembly and the elastic pad, the vibration and noise in the movement process are effectively reduced, and the stability and comfort of the operation are improved; at the same time, the cross-hinged structure of the sliding assembly and the elastic assembly enhances the durability and maintenance convenience of the joint. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creativity labor intensity. Among them:

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the local structure schematic view of the utility model;

[0017] Figure 3 It is the local structure schematic view of the protection assembly of the utility model;

[0018] Figure 4 It is the structure schematic view of the protection assembly of the utility model.

[0019] In the figure: 101, mounting frame; 102, connecting rod; 103, rotating rod; 104, telescopic cylinder; 105, telescopic rod; 106, fixed block; 107, protection assembly; 108, elastic pad; 107a, fixed shell; 107b, sliding assembly; 107c, elastic assembly; 107d, fixed rod; 107b-1, sliding groove; 107b-2, sliding block; 107b-3, extrusion spring; 107b-4, connecting block; 107b-5, rotating rod; 107b-6, reinforcing block; 107b-7, limiting rod; 107b-8, clamping; 107c-1, buffer rod; 107c-2, plug-in rod; 107c-3, rotating shaft; 107c-4, buffer spring. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0021] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] Secondly, "one embodiment" or "embodiment" referred to herein means that specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0023] Embodiments

[0024] Reference Figures 1-4 For the embodiments of the present application, the embodiments provide a flexible joint assembly of an industrial robot, comprising,

[0025] The mounting frame 101, the connecting rod 102 rotatably mounted on the surface of the mounting frame 101, the rotating rod 103 hingedly connected to the side surface of the connecting rod 102, the telescopic cylinder 104 adaptively mounted on the end of the rotating rod 103, the telescopic rod 105 fixedly mounted on the output end of the telescopic cylinder 104, the fixed block 106 fixedly connected to the end of the telescopic rod 105, the protection assembly 107 arranged on the side surface of the fixed block 106, and the elastic pad 108 clamped in the center of the protection assembly 107.

[0026] The protection assembly 107 comprises a fixed shell 107a rotatably mounted on the side surface of the fixed block 106, a sliding assembly 107b slidably mounted on the inner wall of the fixed shell 107a, an elastic assembly 107c matched with the sliding assembly 107b, and a fixed rod 107d inserted into the inner cavity of the fixed shell 107a. The sliding assembly 107b is provided in two symmetrical groups and is cross-hinged, and is arranged at the center of the fixed rod 107d.

[0027] Specifically, the connecting rod 102 on the mounting bracket 101 is hinged with the rotating rod 103 through rotation, the telescopic cylinder 104 at the end of the rotating rod 103 drives the telescopic rod 105 to perform telescopic movement, the fixed block 106 at the end of the telescopic rod 105 is protected by the protection assembly 107, the fixed shell 107a in the protection assembly 107 is rotatably mounted on the side surface of the fixed block 106, the two groups of sliding assemblies 107b on the inner wall of the shell are cross-hinged, and are matched with the elastic assembly 107c to realize stable sliding and buffering effect. Meanwhile, the fixed rod 107d is inserted into the inner cavity of the fixed shell 107a, and the elastic pad 108 is arranged at the central position to absorb external impact, so as to ensure the stability and safety of the entire joint assembly during movement.

[0028] The protection assembly 107 comprises a sliding groove 107b-1 opened at the center of the fixed rod 107d, a sliding block 107b-2 slidably connected in the middle of the sliding groove 107b-1, an extrusion spring 107b-3 fixedly connected to the bottom of the sliding block 107b-2, and a connecting block 107b-4 fixedly mounted on the side wall of the sliding block 107b-2. The protection assembly 107 further comprises a rotating rod 107b-5 hingedly connected to the center of the connecting block 107b-4, a reinforcing block 107b-6 hingedly connected to the bottom of the rotating rod 107b-5, a limiting rod 107b-7 rotatably connected to the bottom of the fixed rod 107d, and a grabbing clamp 107b-8 fixedly mounted on the bottom of the limiting rod 107b-7.

[0029] The elastic assembly 107c comprises a buffer rod 107c-1 hingedly connected to the limiting rod 107b-7, and an insertion rod 107c-2 inserted into the center of the buffer rod 107c-1. The elastic assembly 107c further comprises a rotating shaft 107c-3 fixedly mounted at the end of the insertion rod 107c-2, and a buffer spring 107c-4 fixedly connected to the bottom of the insertion rod 107c-2.

[0030] It should be noted that during articulation, the telescopic cylinder 104 drives the telescopic rod 105, moving the fixed block 106 and its side protection assembly 107. The slider 107b-2 in the protection assembly 107 slides in the sliding groove 107b-1 in the center of the fixed rod 107d through the compression spring 107b-3. The connecting block 107b-4 is fixed to the side wall of the slider 107b-2 and is hinged to the reinforcing block 107b-6 through the rotating rod 107b-5. The reinforcing block 107b-6 is hinged to the limiting rod 107b-7, which is equipped with a grab 107b-8 at the bottom to provide additional fixation. At the same time, the buffer rod 107c-1 of the elastic assembly 107c is hinged to the limiting rod 107b-7, and the plug-in rod 107c-2 passes through the center of the buffer rod 107c-1, with a rotating shaft 107c-3 at one end and a buffer spring 107c-4 at the other end. In this way, the protection assembly 107 and the elastic assembly 107c work together to ensure the stability of the joint during movement, absorb impact, prevent excessive displacement, protect the joint assembly from damage, and maintain the precise control of the robot.

[0031] In use, the telescopic cylinder 104 drives the telescopic rod 105 to achieve telescopic movement of the joint. At the same time, the protection assembly 107 on the side of the fixed block 106 ensures stability and safety during movement. The slider 107b-2 in the protection assembly 107 slides in the sliding groove 107b-1 in the center of the fixed rod 107d, with the compression spring 107b-3 providing restoring force. The connecting block 107b-4 is connected to the reinforcing block 107b-6 through the rotating rod 107b-5. The reinforcing block 107b-6 is hinged to the limiting rod 107b-7, which is equipped with a grab 107b-8 to enhance fixation. The buffer rod 107c-1 of the elastic assembly 107c is hinged to the limiting rod 107b-7, and the plug-in rod 107c-2 is connected through the buffer spring 107c-4, forming an elastic buffer together. During joint movement, it absorbs impact, prevents excessive displacement, protects the joint assembly from damage, and maintains the precise control ability of the robot.

[0032] In summary, the coordinated action of the protection assembly 107 and the elastic assembly 107c effectively absorbs external impact, prevents excessive displacement and damage of the joint assembly, and prolongs the service life. The design of the sliding assembly 107b and the elastic assembly 107c improves the buffering capacity of the joint, reduces maintenance costs and downtime, and optimizes the overall structure to enhance the precise control ability of the robot, making it suitable for various complex working environments and improving work efficiency and quality.

[0033] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Thus, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0034] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0035] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes and omissions of parts illustrated in the drawings, as those skilled in the art will readily understand. Such being the case, it should be understood that the development efforts might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0036] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A flexible joint assembly for an industrial robot, characterized by: The utility model relates to a kind of protection assembly and flexible telescopic arm, including, mounting rack (101), rotatingly mounted in the connecting rod (102) surface of the mounting rack (101), hinged in the side surface of the connecting rod (102) rotating rod (103), flexible telescopic cylinder (104) is adapted to install in the end of the rotating rod (103), fixedly installed in the output end of the flexible telescopic cylinder (104) flexible telescopic rod (105), fixedly connected in the end of the flexible telescopic rod (105) fixed block (106), protection assembly (107) is arranged in the side surface of the fixed block (106), and elastic pad (108) is clamped in the center of the protection assembly (107). The protection assembly (107) includes a fixed shell (107a) that is rotatably mounted to the side surface of the fixed block (106), a sliding assembly (107b) that is slidingly mounted to the inner wall of the fixed shell (107a), an elastic assembly (107c) that is used in cooperation with the sliding assembly (107b), and a fixed rod (107d) that is inserted into the inner cavity of the fixed shell (107a).

2. A flexible joint assembly for an industrial robot according to claim 1, characterized in that: The sliding assembly (107b) is provided with two symmetrical groups, and the sliding assemblies (107b) are cross-hinged and arranged in the center of the fixed rod (107d).

3. A flexible joint assembly for an industrial robot according to claim 2, characterized in that: The protection assembly (107) includes a sliding groove (107b-1) that is opened in the center of the fixed rod (107d), a sliding block (107b-2) that is slidingly connected in the middle of the sliding groove (107b-1), a compression spring (107b-3) that is fixedly connected to the bottom of the sliding block (107b-2), and a connecting block (107b-4) that is fixedly mounted to the side wall of the sliding block (107b-2).

4. A flexible joint assembly for an industrial robot according to claim 3, characterized in that: The protection assembly (107) further includes a rotating rod (107b-5) that is hinged to the center of the connecting block (107b-4), a reinforcing block (107b-6) that is hinged to the bottom of the rotating rod (107b-5), a limiting rod (107b-7) that is rotatably connected to the bottom of the fixed rod (107d), and a grab (107b-8) that is fixedly mounted to the bottom of the limiting rod (107b-7).

5. A flexible joint assembly for an industrial robot according to claim 4, characterized in that: The elastic assembly (107c) includes a buffer rod (107c-1) that is hinged to the limiting rod (107b-7), and an insertion rod (107c-2) that is inserted into the center of the buffer rod (107c-1).

6. A flexible joint assembly for an industrial robot according to claim 5, characterized in that: The elastic assembly (107c) further includes a rotating shaft (107c-3) that is fixedly mounted to the end of the insertion rod (107c-2), and a buffer spring (107c-4) that is fixedly connected to the bottom of the insertion rod (107c-2).

7. A flexible joint assembly for an industrial robot according to claim 6, characterized in that: ​

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