Multi-degree-of-freedom motion platform with adjusting structure

Abstract

The utility model relates to the technical field of multi-degree-of-freedom motion platforms, in particular to a multi-degree-of-freedom motion platform with an adjusting structure, which overcomes the defects in the prior art and comprises a fixed platform, an adjusting platform and an adjusting component, the fixed platform is arranged below the adjusting platform, and six groups of free arm components are arranged between the fixed platform and the adjusting platform. The adjusting assembly is installed on the fixed platform, the adjusting assembly comprises a fixed cylinder, a lifting shaft and a supporting seat, the fixed cylinder is arranged in the direction of the vertical central axis of the fixed platform, the lifting shaft moves up and down along the inner wall of the fixed cylinder for adjustment, and the supporting seat is installed at the top of the lifting shaft and can be supported below the adjusting platform. The supporting effect on the adjusting platform is achieved by adjusting the height of the lifting base, and factors such as damage between assembly matching and the like do not need to be considered any more.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -freedom degree motion platform technical field, concretely is a kind of multi -freedom degree motion platform with adjusting structure. BACKGROUND

[0002] Multi -freedom degree motion platform is a kind of high-tech mechanical system, with multiple independently movable direction or times, i.e. degree of freedom. Multi -freedom degree motion platform is usually composed of multiple electric cylinders (or actuating cylinder), upper and lower each number (such as six) universal hinge and upper and lower two platforms. Lower platform is fixed on base, and by the telescopic movement of multiple electric cylinders, the movement of upper platform in space multiple degrees of freedom is completed, so as to simulate various space movement postures.

[0003] The utility model discloses a multi -freedom degree motion platform convenient for overhauling of CN218441442U is disclosed in Chinese utility model patent, and the patent technology to be solved is as follows: how to ensure the stability in the replacement process when electric cylinder fails, so the patent mainly is by setting up the lower support, support pipe, support rod, bolt and slide seat these structures between upper and lower platform, utilize the length adjustment of support pipe and support rod, cooperate switching and make it can temporarily support the position of electric cylinder that fails, although this way can play a certain role, but the structure applicable object exists certain limit, and the weight of large base number is usually carried on the multi -freedom degree motion platform, and the position of replacement is difficult to bear large weight by support pipe and support rod to assist support, and when not need support, the structure is with upper platform together movable, and then the cooperation of slide seat and guide groove and the structure setting of guide groove can make slide seat when sliding to intermediate position and moving to another side produce certain hindering, in turn can lead to the force of the structure is destroyed Condition occurs, therefore, we propose a kind of multi -freedom degree motion platform with adjusting structure to solve the problem proposed above. UTILITY MODEL CONTENTS

[0004] The utility model is aimed at providing a kind of multi -freedom degree motion platform with adjusting structure to solve the problem proposed in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of multi-degree-of-freedom motion platform with adjusting structure, including fixed platform, adjusting platform and adjusting component, the fixed platform is arranged below adjusting platform, and 6 groups of free arm components are arranged between it, adjusting component is installed on fixed platform, adjusting component includes fixed cylinder, lifting shaft and support seat, fixed cylinder is arranged along the vertical central axis direction of fixed platform, lifting shaft moves up and down along the inner wall of fixed cylinder, support seat is installed on the top of lifting shaft, and support seat can be supported below adjusting platform.

[0007] According to the above technical scheme, the top surface of the fixed platform is fixed with a connecting frame one by screws, and a connecting seat one is installed at each of the three ends of the connecting frame one by screws, and the connecting seat one is also fixed on the fixed platform.

[0008] The bottom surface of the adjusting platform is fixed with a connecting frame two by screws, the connecting frame one and the connecting frame two are consistent in shape, and a connecting seat two is installed at each of the three ends of the connecting frame two by screws, and the connecting seat two is fixed on the adjusting platform.

[0009] According to the above technical scheme, a universal joint one is installed on the connecting seat one by screws, a universal joint two is installed on the connecting seat two by screws, the free arm component includes an electric cylinder and two universal joints three, the two universal joints three are respectively installed on the two ends of the electric cylinder, and the universal joint one and the universal joint three connected by shaft connection, and the universal joint two and the universal joint three connected by shaft connection are movably provided with a rotating block.

[0010] According to the above technical scheme, the adjusting component further includes a worm gear, a worm and a gear, the bottom end of the fixed cylinder is installed in the middle of the top surface of the connecting frame one, a side plate is installed on the outer side wall of the fixed cylinder, the worm gear and the gear are coaxially connected and installed on both sides of the side plate, the worm is meshed and installed on the side plate on one side of the worm gear, a driving motor is connected to the bottom end of the worm, and a plurality of tooth grooves are uniformly arranged on the outer surface of the lifting shaft along the length direction of the lifting shaft, and the tooth grooves are meshed and driven by the gear.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] By setting the adjusting component between the fixed platform and the adjusting platform, the output of the lifting shaft is controlled by the transmission of the worm gear and the worm, so that the support seat can be adjusted to the bottom of the adjusting platform when needed and temporarily supported, thereby facilitating the replacement of the free arm component that needs to be replaced, and the temporary support effect is achieved by using a simple structure, and there is no factor of being damaged by external force, which is convenient and practical and widely applicable. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the installation of the adjustment component of this utility model;

[0015] Figure 3 yes Figure 2 Another perspective installation diagram.

[0016] In the diagram: 1. Fixed platform; 11. Connecting frame one; 111. Universal hinge one; 2. Adjusting platform; 21. Connecting frame two; 211. Universal hinge two; 3. Adjusting assembly; 31. Fixed cylinder; 311. Side plate; 32. Lifting shaft; 33. Support base; 34. Worm gear; 35. Worm wheel; 36. Gear. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-3 This utility model provides a technical solution: a multi-degree-of-freedom motion platform with an adjustable structure, including a fixed platform 1, an adjustable platform 2, and an adjustable assembly 3. The fixed platform 1 is located below the adjustable platform 2, and six sets of free arm assemblies are arranged between them. A connecting frame 11 is fixed to the top surface of the fixed platform 1 by screws. A connecting seat 1 is installed at each of the three ends of the connecting frame 11 by screws, and the connecting seat 1 is also fixed to the fixed platform 1. A connecting frame 21 is fixed to the bottom surface of the adjustable platform 2 by screws. The connecting frame 11 and the connecting frame 21 are connected... All components are Y-shaped and have connecting seats 2 installed at the three ends of the connecting frame 21 by screws. The connecting seats 2 are fixed on the adjusting platform 2. A universal hinge 1 is installed on the connecting seat 1 by screws, and a universal hinge 2 is installed on the connecting seat 2 by screws. The free arm assembly includes an electric cylinder and two universal hinges 3. The two universal hinges 3 are respectively installed on both ends of the electric cylinder. A rotating block is movably set between the connected universal hinges 1 and 3, and between the connected universal hinges 2 and 3, by means of a shaft connection.

[0019] It needs to be further explained that by controlling the starting of each electric cylinder, the lengthening or shortening of the output shafts of each electric cylinder can be controlled, so that the adjusting platform 2 can simulate different motion states.

[0020] The adjusting assembly 3 is installed on the fixed platform 1, and the adjusting assembly 3 comprises a fixed cylinder 31, a lifting shaft 32, a support seat 33, a worm wheel 35, a worm 34 and a gear 36, the fixed cylinder 31 is arranged along the vertical central axis of the fixed platform 1, the lifting shaft 32 moves up and down along the inner wall of the fixed cylinder 31, the support seat 33 is installed on the top of the lifting shaft 32 by screws, and the support seat 33 can be supported below the adjusting platform 2, a groove matched with the connecting frame two 21 is formed on the support seat 33, the bottom end of the fixed cylinder 31 is installed in the middle of the top surface of the connecting frame one 11, a side plate 311 is installed on the outer side wall of the fixed cylinder 31, the worm wheel 35 and the gear 36 are coaxially connected on both sides of the side plate 311, the worm 34 is arranged on one side of the worm wheel 35 and is installed on the side plate 311, and a driving motor is connected to the bottom end of the worm 34, a plurality of tooth grooves matched with the gear 36 are uniformly formed on the outer surface of the lifting shaft 32 along the length direction of the lifting shaft 32.

[0021] It needs to be further explained that when the electric cylinder needs to be replaced, the multi-degree-of-freedom motion platform is restored to the initial state, then the driving motor is started to drive the worm 34 to rotate, so that the worm wheel 35 drives the gear 36 to rotate synchronously, with the rotation of the gear 36, the lifting shaft 32 immediately moves up and down along the vertical direction, so as to drive the support seat 33 to move to the side close to the connecting frame two 21, until the bottom of the connecting frame two 21 is in contact with the support seat 33, the connecting frame two 21 is fitted in the groove of the support seat 33, the driving motor is stopped, then the electric cylinder can be replaced, and after the replacement is completed, the driving motor is started again and the worm 34 controls the worm wheel 35 to rotate reversely, so that the lifting shaft 32 drives the support seat 33 to reset downward, until the support seat 33 is in contact with the fixed cylinder 31 and stops.

[0022] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A multi-degree-of-freedom motion platform with an adjustment structure, comprising a fixed platform (1), an adjustment platform (2), and an adjustment assembly (3), characterized in that, The fixed platform (1) is located below the adjusting platform (2), and six sets of free arm assemblies are arranged between them. The adjusting assembly (3) is installed on the fixed platform (1). The adjusting assembly (3) includes a fixed cylinder (31), a lifting shaft (32), and a support base (33). The fixed cylinder (31) is arranged along the vertical central axis of the fixed platform (1). The lifting shaft (32) moves up and down along the inner wall of the fixed cylinder (31) for adjustment. The support base (33) is installed on the top of the lifting shaft (32) and can support the adjusting platform (2) below.

2. The multi-degree-of-freedom motion platform with an adjustment structure according to claim 1, characterized in that, A connecting frame (11) is fixed to the top surface of the fixed platform (1) by screws. A connecting seat is installed at each of the three ends of the connecting frame (11) by screws. The connecting seat is also fixed to the fixed platform (1). The bottom surface of the adjustment platform (2) is fixed with a connecting frame two (21) by screws. The shape of the connecting frame one (11) is the same as that of the connecting frame two (21), and the connecting seat two is installed at each of the three ends of the connecting frame two (21) by screws. The connecting seat two is fixed on the adjustment platform (2).

3. The multi-degree-of-freedom motion platform with an adjustment structure according to claim 2, characterized in that, A universal hinge 1 (111) is installed on the first connecting seat by screws, and a universal hinge 2 (211) is installed on the second connecting seat by screws. The free arm assembly includes an electric cylinder and two universal hinges 3. The two universal hinges 3 are respectively installed on both ends of the electric cylinder. A rotating block is movably arranged between the universal hinge 1 (111) and the universal hinge 3 connected to each other, and between the universal hinge 2 (211) and the universal hinge 3 connected to each other, by means of shaft connection.

4. A multi-degree-of-freedom motion platform with an adjustment structure according to claim 3, characterized in that, The adjustment assembly (3) also includes a worm gear (35), a worm (34), and a gear (36). The bottom end of the fixed cylinder (31) is installed in the middle of the top surface of the connecting frame (11). A side plate (311) is installed on the outer side wall of the fixed cylinder (31). The worm gear (35) and the gear (36) are coaxially connected and installed on both sides of the side plate (311). The worm (34) is meshed on one side of the worm gear (35) and installed on the side plate (311). A drive motor is connected to the bottom end of the worm (34). Several tooth grooves that mesh with the gear (36) are evenly opened along the length direction on the outer surface of the lifting shaft (32).

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