Mechanical joints
By designing a mechanical joint including a base plate, a movable plate, a first base, a second base and an electric push rod, the problem of a single rotation direction of the existing mechanical joint is solved, and the flexibility of multi-directional adjustment is achieved.
Patent Information
- Application Number
- CN202421536651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The rotation direction of existing mechanical joint adjustment is very single and cannot meet the needs of multi-directional adjustment.
A mechanical joint including a base plate, a movable plate, a first base, a second base and an electric push rod is designed. One end of the electric push rod is connected to the first base and the other end is connected to the second base. The spacing between the first base and the second base is adjusted by changing the length of the electric push rod, thereby adjusting the orientation and position of the movable plate.
The possibility of multi-directional adjustment is achieved. Through the change of the length of the electric push rod, the orientation and position of the movable plate can be changed, enhancing the flexibility of the mechanical joints.
Smart Images
Figure CN222712188U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical joints, and more specifically, relates to a mechanical joint. Background Art
[0002] Modern robots are developing rapidly, and robots need to use a variety of mechanical joints. Existing mechanical joints are usually formed by two rods pivoted by a shaft, but this type of mechanical joint can only rotate, and the rotation direction of the mechanical joint adjustment is very single. Utility Model Content
[0003] The utility model aims to provide a mechanical joint to solve the technical problem in the prior art that the rotation direction of the mechanical joint adjustment is very single.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a mechanical joint including: a base plate, a movable plate spaced apart from the base plate, a first base arranged on the base plate, a second base arranged on the movable plate, and an electric push rod arranged between the base plate and the movable plate; one end of the electric push rod is rotatably connected to the first base, and the other end of the electric push rod is rotatably connected to the second base; the number of the first base, the electric push rod, and the second base is at least three respectively; each of the first base, each of the electric push rods, and each of the second bases corresponds to each other one by one; any two adjacent first bases are spaced apart, and any two adjacent second bases are spaced apart.
[0005] Furthermore, each of the electric push rods includes: a telescopic part, a driving part for driving the telescopic part to telescope, a first connecting part, and a second connecting part; each of the first connecting parts is pivoted to the first base through a first rotating shaft, and each of the second connecting parts is pivoted to the second base through a second rotating shaft; each of the driving parts is pivoted to the first connecting part through a third rotating shaft, and each of the telescopic parts is pivoted to the second connecting part through a fourth rotating shaft; each of the first rotating shafts is perpendicularly arranged to the corresponding third rotating shafts, and each of the second rotating shafts is perpendicularly arranged to the corresponding fourth rotating shafts.
[0006] Further, the first connecting member is in the shape of an elongated strip, and the first rotating shaft and the third rotating shaft are respectively located at two opposite ends of the first connecting member; the second connecting member is in the shape of an elongated strip, and the second rotating shaft and the fourth rotating shaft are respectively located at two opposite ends of the second connecting member.
[0007] Furthermore, each of the first rotating shafts is arranged in parallel with the corresponding second rotating shaft.
[0008] Furthermore, each of the third rotating shafts is arranged in parallel with the corresponding fourth rotating shaft.
[0009] Furthermore, the number of the first base, the electric push rod, and the second base is three respectively.
[0010] Furthermore, the number of the first base, the electric push rod, and the second base is six respectively.
[0011] Furthermore, each of the first bases is sequentially arranged along the edge of the bottom plate.
[0012] Furthermore, each of the second bases is sequentially arranged along the edge of the movable plate.
[0013] Furthermore, it also includes: a first support rod arranged on the base plate and a second support rod arranged on the movable plate; the first support rod and the second support rod are respectively located between the base plate and the movable plate; the end of the first support rod has a spherical cavity, and the second support rod has a sphere clamped in the spherical cavity.
[0014] The beneficial effect of the mechanical joint provided by the utility model is that: compared with the prior art, in the mechanical joint provided by the utility model, the electric push rod is located between the bottom plate and the movable plate; the first base is arranged on the bottom plate, and one end of the electric push rod is rotatably connected to the first base, so that one end of the electric push rod can rotate relative to the first base; the second base is arranged on the bottom plate, and the other end of the electric push rod is rotatably arranged on the second base, so that the other end of the electric push rod can rotate relative to the second base; the distance between the first base and the second base can be adjusted by changing the length of the electric push rod. Assuming that the position where the first base is connected to the bottom plate is the first position, and the position where the second base is connected to the movable plate is the second position, that is, the distance between the first position and the second position can be adjusted by changing the length of the electric push rod; since the number of the first base, the electric push rod, and the second base is at least three respectively; the first base, the electric push rod, and the second base correspond to each other one by one; and any two adjacent first bases are arranged at intervals, and any two adjacent second bases are arranged at intervals, so that the movable plate is supported and moved by at least three second bases, and the positions of the three second bases are changed, the movable plate can be changed to different directions, and in addition, the positions of the three second bases can be changed, and the movable plate can be changed to different positions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 A three-dimensional schematic diagram of a mechanical joint (with three electric push rods) provided in an embodiment of the utility model;
[0017] Figure 2 A schematic diagram of the coordination of the first support rod and the second support rod provided in an embodiment of the utility model;
[0018] Figure 3 A three-dimensional schematic diagram of a mechanical joint (having six electric push rods) provided in an embodiment of the utility model.
[0019] Among them, the reference numerals in the figure are:
[0020] 1-bottom plate; 11-first support rod; 111-concave cavity; 2-movable plate; 21-second support rod; 212-sphere; 31-first base; 32-second base; 4-electric push rod; 41-telescopic part; 42-driving part; 43-first connecting piece; 44-second connecting piece; 51-first rotating shaft; 52-second rotating shaft; 53-third rotating shaft; 54-fourth rotating shaft. DETAILED DESCRIPTION
[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0023] It should be noted that, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural respectively.
[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0026] Please also read Figures 1 to 3 , the mechanical joint provided by the utility model is now described. The mechanical joint comprises: a bottom plate 1, a movable plate 2 spaced apart from the bottom plate 1, a first base 31 disposed on the bottom plate 1, a second base 32 disposed on the movable plate 2, and an electric push rod 4 disposed between the bottom plate 1 and the movable plate 2; one end of the electric push rod 4 is rotatably connected to the first base 31, and the other end of the electric push rod 4 is rotatably connected to the second base 32; the number of the first base 31, the electric push rod 4, and the second base 32 is at least three respectively; each first base 31, each electric push rod 4, and each second base 32 corresponds to each other one by one; any two adjacent first bases 31 are spaced apart, and any two adjacent second bases 32 are spaced apart.
[0027] In this way, the electric push rod 4 is located between the bottom plate 1 and the movable plate 2; the first base 31 is arranged on the bottom plate 1, and one end of the electric push rod 4 is rotatably connected to the first base 31, so that one end of the electric push rod 4 can rotate relative to the first base 31; the second base 32 is arranged on the bottom plate 1, and the other end of the electric push rod 4 is rotatably arranged on the second base 32, so that the other end of the electric push rod 4 can rotate relative to the second base 32; the distance between the first base 31 and the second base 32 can be adjusted by changing the length of the electric push rod 4. It is assumed that the position where the first base 31 and the bottom plate 1 are connected is the first position, and the position where the second base 32 and the movable plate 2 are connected is the second position, that is, by changing the length of the electric push rod 4 The change in the length of the rod 4 can adjust the distance between the first position and the second position; since the number of the first base 31, the electric push rod 4, and the second base 32 are at least three respectively; the first base 31, the electric push rod 4, and the second base 32 correspond to each other one by one; and any two adjacent first bases 31 are arranged at intervals, and any two adjacent second bases 32 are arranged at intervals, so that the movable plate 2 is supported by at least three second bases 32 and can be moved when the positions of the three second bases 32 change, the movable plate 2 can be changed to different orientations. In addition, the movable plate 2 can be changed to different positions when the positions of the three second bases 32 change.
[0028] In one embodiment, one end of the electric push rod 4 is rotatably connected to the first base 31 through a universal joint (in one embodiment, the universal joint can rotate freely in three dimensions of X, Y, and Z. In one embodiment, the universal joint is a universal coupling). In one embodiment, the other end of the electric push rod 4 is rotatably connected to the second base 32 through a universal joint.
[0029] In one embodiment, the bottom plate 1 and the movable plate 2 are metal plates respectively.
[0030] In one embodiment, the electric push rod 4 is an electric push rod, which is also called a linear drive, and is a new type of linear actuator mainly composed of a motor push rod and a control device.
[0031] For further information, see Figures 1 to 3As a specific embodiment of the mechanical joint provided by the utility model, each electric push rod 4 includes: a telescopic part 41, a driving part 42 for driving the telescopic part 41 to telescope, a first connecting member 43, and a second connecting member 44; each first connecting member 43 is pivoted to the first base 31 through a first rotating shaft 51, and each second connecting member 44 is pivoted to the second base 32 through a second rotating shaft 52; each driving part 42 is pivoted to the first connecting member 43 through a third rotating shaft 53, and each telescopic part 41 is pivoted to the second connecting member 44 through a fourth rotating shaft 54; each first rotating shaft 51 is perpendicularly arranged to the corresponding third rotating shaft 53, and each second rotating shaft 52 is perpendicularly arranged to the corresponding fourth rotating shaft 54. In this way, the first base 31 is rotatably set on the first connecting member 43 through the first rotating shaft 51, the driving part 42 is rotatably set on the first connecting member 43 through the third rotating shaft 53, and the first rotating shaft 51 and the second rotating shaft 52 are vertically arranged, so that the driving part 42 and the first base 31 can rotate freely relative to each other; the second base 32 is rotatably set on the second connecting member 44 through the second rotating shaft 52, and the telescopic part 41 is rotatably set on the second connecting member 44 through the fourth rotating shaft 54, and the second rotating shaft 52 and the fourth rotating shaft 54 are vertically arranged, so that the driving part 42 and the second base 32 can rotate freely relative to each other.
[0032] In one embodiment, the electric push rod 4 includes: a base, a screw disposed on the base, a nut threadedly connected to the screw, and a motor disposed on the base and driving the screw to rotate; the motor drives the screw to rotate to drive the nut to move. In one embodiment, the driving part 42 is: a base (in one embodiment, the third rotating shaft 53 is disposed on the base), a screw, and a motor. In one embodiment, the telescopic part 41 is a nut.
[0033] For further information, see Figures 1 to 3 As a specific embodiment of the mechanical joint provided by the utility model, the first connecting member 43 is in the shape of an elongated strip, and the first rotating shaft 51 and the third rotating shaft 53 are respectively located at the opposite ends of the first connecting member 43; the second connecting member 44 is in the shape of an elongated strip, and the second rotating shaft 52 and the fourth rotating shaft 54 are respectively located at the opposite ends of the second connecting member 44. In this way, the first rotating shaft 51 and the third device are not easy to interfere with each other, and the second rotating shaft 52 and the fourth device are not easy to interfere with each other.
[0034] For further information, see Figures 1 to 3 As a specific embodiment of the mechanical joint provided by the utility model, each first rotating shaft 51 is respectively arranged in parallel with the corresponding second rotating shaft 52. In this way, the first base 31 and the second base 32 are respectively rotated relative to the electric push rod 4 around mutually parallel axes.
[0035] For further information, see Figures 1 to 3As a specific embodiment of the mechanical joint provided by the utility model, each third rotating shaft 53 is respectively arranged in parallel with the corresponding fourth rotating shaft 54. In this way, the first connecting member 43 and the second connecting member 44 are respectively rotated relative to the electric push rod 4 around mutually parallel axes.
[0036] For further information, see Figures 1 to 3 As a specific embodiment of the mechanical joint provided by the utility model, the number of the first base 31, the electric push rod 4, and the second base 32 are three respectively. In this way, the movable plate 2 can be supported and the angle or position of the movable plate 2 can be adjusted by the three electric push rods 4.
[0037] For further information, see Figures 1 to 3 As a specific embodiment of the mechanical joint provided by the utility model, the number of the first base 31, the electric push rod 4, and the second base 32 are six respectively. In this way, the movable plate 2 can be supported and the angle or position of the movable plate 2 can be adjusted by the six electric push rods 4.
[0038] For further information, see Figures 1 to 3 As a specific implementation of the mechanical joint provided by the utility model, each first base 31 is sequentially arranged along the edge of the bottom plate 1. In this way, each first base 31 can distribute the supporting force to the edge of the bottom plate 1.
[0039] For further information, see Figures 1 to 3 As a specific implementation of the mechanical joint provided by the utility model, each second base 32 is sequentially arranged along the edge of the movable plate 2. In this way, each second base 32 can distribute the supporting force to the edge of the movable plate 2.
[0040] For further information, see Figures 1 to 3 As a specific embodiment of the mechanical joint provided by the utility model, it also includes: a first support rod 11 arranged on the bottom plate 1 and a second support rod 21 arranged on the movable plate 2; the first support rod 11 and the second support rod 21 are respectively located between the bottom plate 1 and the movable plate 2; the end of the first support rod 11 has a spherical cavity 111, and the second support rod 21 has a ball 212 clamped in the spherical cavity 111. In this way, the bottom plate 1 and the movable plate 2 can be supported by the first support rod 11 and the second support rod 21, and the ball 212 on the second support rod 21 is clamped in the cavity 111 on the first support rod 11, so that the first support rod 11 and the second support rod 21 can rotate relative to each other.
[0041] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A mechanical joint, characterized in that: include: A bottom plate, a movable plate spaced apart from the bottom plate, a first base arranged on the bottom plate, a second base arranged on the movable plate, and an electric push rod arranged between the bottom plate and the movable plate; One end of the electric push rod is rotatably connected to the first base, and the other end of the electric push rod is rotatably connected to the second base; the number of the first base, the electric push rod, and the second base is at least three respectively; each of the first base, each of the electric push rod, and each of the second base corresponds to each other one by one; any two adjacent first bases are spaced apart, and any two adjacent second bases are spaced apart.
2. The mechanical joint according to claim 1, characterized in that: Each of the electric push rods includes: a telescopic part, a driving part for driving the telescopic part to telescopically move, a first connecting member, and a second connecting member; each of the first connecting members is pivoted to the first base through a first rotating shaft, and each of the second connecting members is pivoted to the second base through a second rotating shaft; each of the driving parts is pivoted to the first connecting member through a third rotating shaft, and each of the telescopic parts is pivoted to the second connecting member through a fourth rotating shaft; each of the first rotating shafts is perpendicularly arranged to the corresponding third rotating shafts, and each of the second rotating shafts is perpendicularly arranged to the corresponding fourth rotating shafts.
3. The mechanical joint according to claim 2, characterized in that: The first connecting member is in the shape of an elongated strip, and the first rotating shaft and the third rotating shaft are respectively located at two opposite ends of the first connecting member; the second connecting member is in the shape of an elongated strip, and the second rotating shaft and the fourth rotating shaft are respectively located at two opposite ends of the second connecting member.
4. The mechanical joint according to claim 2, characterized in that: Each of the first rotating shafts is arranged in parallel with the corresponding second rotating shaft.
5. The mechanical joint according to claim 2, characterized in that: Each of the third rotating shafts is arranged in parallel with the corresponding fourth rotating shaft.
6. The mechanical joint according to any one of claims 1 to 5, characterized in that: The number of the first base, the electric push rod, and the second base are three respectively.
7. The mechanical joint according to any one of claims 1 to 5, characterized in that: The number of the first base, the electric push rod, and the second base are six respectively.
8. The mechanical joint according to any one of claims 1 to 5, characterized in that: The first bases are arranged in sequence along the edge of the bottom plate.
9. The mechanical joint according to any one of claims 1 to 5, characterized in that: The second bases are arranged in sequence along the edge of the movable plate.
10. The mechanical joint according to any one of claims 1 to 5, characterized in that: Also includes: A first support rod is arranged on the bottom plate and a second support rod is arranged on the movable plate; the first support rod and the second support rod are respectively located between the bottom plate and the movable plate; the end of the first support rod has a spherical cavity, and the second support rod has a sphere clamped in the spherical cavity.