阅读说明：本技术 连动装置及双轴式连动模块 (Linkage device and double-shaft linkage module ) 是由 江宜宏 郭永昇 于 2020-04-30 设计创作，主要内容包括：本发明公开一种连动装置及双轴式连动模块。双轴式连动模块包括两个轴杆、一连动件及一夹持式扭力组件。两个轴杆彼此平行,每个轴杆的外表面凹设形成有螺旋轨道槽。连动件夹持于两个所述轴杆之间；其中,两个所述轴杆中的一个所述轴杆能自转,以通过所述连动件带动另一个所述轴杆同步自转。夹持式扭力组件包含有相互组接的两个夹持件,并且每个所述夹持件包含有一连接部及从所述连接部分别朝不同侧延伸所形成的两个弧状翼部,并且每个所述夹持件的两个所述弧状翼部分别抵接于两个所述轴杆。据此,使两个所述轴杆的所述中心轴线平行且距离更为稳定限制,并可使得两个所述轴杆扭转时有效地降低产生扭动与错位。(The invention discloses a linkage device and a double-shaft linkage module. The double-shaft linkage module comprises two shaft rods, a linkage piece and a clamping type torsion assembly. The two shaft rods are parallel to each other, and a spiral track groove is concavely formed on the outer surface of each shaft rod. The linkage piece is clamped between the two shaft rods; one of the two shaft levers can rotate to drive the other shaft lever to rotate synchronously through the linkage piece. The clamping type torsion assembly comprises two clamping pieces which are mutually assembled, each clamping piece comprises a connecting part and two arc-shaped wing parts which are formed by respectively extending from the connecting part to different sides, and the two arc-shaped wing parts of each clamping piece are respectively abutted against the two shaft rods. Therefore, the central axes of the two shaft rods are parallel, the distance is more stably limited, and the twisting and dislocation of the two shaft rods can be effectively reduced when the two shaft rods are twisted.)

1. A linkage device, comprising:

two shafts each defining a central axis, and the central axes of the two shafts being parallel to each other; wherein, the outer surface of each shaft lever is concavely provided with at least one spiral track groove;

the linkage piece is provided with two matching surfaces and comprises at least one driving part protruding from each matching surface; the linkage piece is clamped between the two shaft rods, the two matching surfaces face the two shaft rods respectively, and the at least one driving part on each matching surface penetrates through the at least one spiral track groove of the corresponding shaft rod; one of the two shaft levers can rotate to drive the other shaft lever to rotate synchronously through the linkage piece;

the two external connectors are respectively fixed at two tail end sections positioned on the same side of the two shaft rods and are used for being respectively fixed on the two external members, and the two tail end sections positioned on the other sides of the two shaft rods are in a suspended state; and

the clamping type torque assembly comprises two clamping pieces which are mutually assembled and are adjacent to the two external connecting pieces; each clamping piece comprises a connecting part and two arc-shaped wing parts which are formed by extending from the connecting part to different sides respectively;

wherein the two clamping pieces face each other and clamp the two shafts to maintain the relative positions of the central axes of the two shafts; the two connecting parts are mutually assembled, the two arc-shaped wing parts of each clamping piece are respectively abutted against the two shaft rods, and the tail ends of the two arc-shaped wing parts of any one clamping piece are respectively spaced from and arranged adjacent to the tail ends of the two arc-shaped wing parts of the other clamping piece;

in any one of the shaft rod and the two adjacent arc-shaped wing parts clamped on the shaft rod, a gap is formed at the tail end of each of the two arc-shaped wing parts, and the gap forms a central angle smaller than 90 degrees corresponding to the central axis.

2. The linkage device according to claim 1, wherein the clamping torque assembly further comprises at least one locking member screwed to the two connecting portions, and the two connecting portions are separated by a distance, and the distance can be adjusted by the at least one locking member to change the force of the two clamping members clamping the two shafts.

3. The linkage according to claim 1, wherein the two clamping pieces have different configurations from each other; in one of the two clamping pieces, the part of any one of the shaft rods, which is contacted with the connecting part, of the two arc-shaped wing parts forms a central angle which is not less than 180 degrees corresponding to the central axis.

4. The linkage according to claim 1, wherein in each of the clips, the two wing portions are arranged in mirror symmetry with respect to the connecting portion; wherein, in at least one of the two clamping pieces, each arc-shaped wing part and the connecting part have the same thickness, the connecting part is not contacted with any shaft rod, and the two arc-shaped wing parts can elastically swing relative to the connecting part.

5. The interlocking device according to claim 1, wherein the central angle formed by the gap corresponding to the central axis is less than 45 degrees in any one of the stem and the two arcuate wing portions that are clamped between the stem and adjacent to each other.

6. The linkage device according to claim 1, wherein a first retaining groove is formed in the outer surface of each shaft, and the two arc-shaped wing portions of each clamping member are respectively received in the first retaining grooves of the two shafts.

7. The linkage device according to claim 6, wherein a second retaining groove is concavely formed on the outer surface of each shaft, and the first retaining groove and the second retaining groove are respectively located on two opposite sides of at least one spiral track groove; the linkage device further comprises a plurality of torsion pieces which are stacked, and the plurality of torsion pieces are arranged in the second buckling groove.

8. The linkage according to claim 1, wherein the number of the at least one of the spiral track grooves formed by the outer surface of each of the shaft rods being recessed is plural, and the plural spiral track grooves of any one of the shaft rods face the plural spiral track grooves of the other shaft rod, respectively; the linkage piece comprises two linkage blocks and a fixing piece for connecting and fixing the two linkage blocks, each linkage block is provided with two driving parts, the linkage blocks are clamped between the two shaft rods, and the two driving parts of each linkage block penetrate through the two spiral track grooves which are respectively positioned on the two shaft rods and are opposite to each other.

9. The linkage device according to claim 8, wherein the linkage member has two mating surfaces facing the two shafts respectively, and each mating surface is composed of two driving blocks, and the two driving portions of each driving block are located at the two mating surfaces respectively; a gap is left between the two driving parts of any one of the matching surfaces, and the fixing part is limited to be a welding body which is filled in each gap.

10. The utility model provides a two-axis formula interlock module which characterized in that, two-axis formula interlock module includes:

two shaft levers, each defining a central axis; wherein, the outer surface of each shaft lever is concavely provided with at least one spiral track groove;

a linkage member clamped between the two shaft levers; one of the two shaft levers can rotate to drive the other shaft lever to rotate synchronously through the linkage piece; and

the clamping type torsion assembly comprises two clamping pieces which are mutually assembled, and each clamping piece comprises a connecting part and two arc-shaped wing parts which are formed by respectively extending from the connecting part to different sides;

the two clamping pieces face each other and clamp the two shaft rods, the two connecting parts are assembled with each other, the two arc-shaped wing parts of each clamping piece are abutted to the two shaft rods respectively, and the tail ends of the two arc-shaped wing parts of any one clamping piece are spaced from the tail ends of the two arc-shaped wing parts of the other clamping piece and are arranged adjacently.

Technical Field

The present invention relates to a torque module, and more particularly to a linkage device and a dual-axis linkage module.

Background

The existing linkage device comprises two shaft levers, a synchronization mechanism for linking the two shaft levers and a torsion module sleeved on the two shaft levers, and most of the torsion modules are stacked by a plurality of torsion pieces, so that the two shaft levers can generate torsion. However, the conventional torque module has a poor limiting effect between the two shafts.

The present inventors have considered that the above-mentioned drawbacks can be improved, and have studied and applied scientific principles to propose an invention that is designed reasonably and effectively to improve the above-mentioned drawbacks.

Disclosure of Invention

The embodiment of the invention provides a linkage device and a double-shaft linkage module, which can effectively improve the possible defects of the existing linkage device.

The embodiment of the invention discloses a linkage device, which comprises: two shafts, each defining a central axis, the central axes of the two shafts being parallel to each other; wherein, the outer surface of each shaft lever is concavely provided with at least one spiral track groove; a linkage piece, which is provided with two matching surfaces and comprises at least one driving part protruding from each matching surface; the linkage piece is clamped between the two shaft levers, the two matching surfaces face the two shaft levers respectively, and the at least one driving part on each matching surface penetrates through the at least one spiral track groove of the corresponding shaft lever; one of the two shaft levers can rotate to drive the other shaft lever to rotate synchronously through the linkage piece; the two external connectors are respectively fixed at two tail end sections positioned at the same side of the two shaft levers and are used for being respectively fixed on the two external components, and the two tail end sections positioned at the other sides of the two shaft levers are in a suspended state; and a clamping type torque force component, which comprises two clamping pieces which are mutually assembled and are adjacent to the two external connecting pieces; each clamping piece comprises a connecting part and two arc-shaped wing parts which are formed by extending from the connecting part to different sides respectively; the two clamping pieces face each other and clamp the two shaft rods so as to maintain the relative positions of the central axes of the two shaft rods; the two connecting parts are mutually assembled, the two arc-shaped wing parts of each clamping piece are respectively abutted against the two shaft rods, and the tail ends of the two arc-shaped wing parts of any one clamping piece are respectively spaced from the tail ends of the two arc-shaped wing parts of the other clamping piece and are adjacently arranged; in any one of the shaft rods and the two arc-shaped wing parts clamped on the shaft rods and adjacent to each other, a gap is formed at the tail end of each of the two arc-shaped wing parts, and the gap forms a central angle smaller than 90 degrees corresponding to the central axis.

Preferably, the clamping type torque assembly further comprises at least one locking member screwed to the two connecting portions, the two connecting portions are separated by a distance, and the distance can be adjusted by the at least one locking member to change the clamping force of the two clamping members on the two shafts.

Preferably, the two clamps have a mutually different configuration; in one of the two clamping pieces, the part of any shaft rod, which is contacted with the connecting part, of the two arc-shaped wing parts forms a central angle which is not less than 180 degrees corresponding to the central axis.

Preferably, in each clamp, the two wings are arranged mirror-symmetrically with respect to the connecting portion; in at least one of the two clamping pieces, each arc-shaped wing part and the connecting part have the same thickness, the connecting part is not contacted with any shaft rod, and the two arc-shaped wing parts can elastically swing relative to the connecting part.

Preferably, in any one of the shaft and the two arc-shaped wing portions clamped on the shaft and adjacent to each other, a central angle formed by the gap corresponding to the central axis is less than 45 degrees.

Preferably, a first buckling groove is concavely formed on the outer surface of each shaft rod, and the two arc-shaped wing parts of each clamping piece are respectively accommodated in the first buckling grooves of the two shaft rods.

Preferably, a second retaining groove is concavely formed on the outer surface of each shaft rod, and the first retaining groove and the second retaining groove are respectively positioned on two opposite sides of the at least one spiral track groove; the linkage device also comprises a plurality of torsion pieces which are stacked and arranged, and the plurality of torsion pieces are arranged in the second buckling groove.

Preferably, the number of the at least one helical track groove concavely formed on the outer surface of each shaft is plural, and the plurality of helical track grooves of any one shaft face the plurality of helical track grooves of another shaft, respectively; the linkage piece includes two linkage blocks and connects a mounting of fixed two linkage blocks to every linkage block is formed with two drive portions, and a plurality of linkage blocks centre gripping is between two axostylus axostyles, and two drive portions of every linkage block wear to locate to be located two axostylus axostyles respectively and two helical track grooves in opposite directions each other.

Preferably, the linkage piece has two matching surfaces facing the two shafts respectively, and each matching surface is composed of two driving blocks, and the two driving parts of each driving block are located at the two matching surfaces respectively; a gap is left between the two driving parts of either mating surface, and the fixing member is defined as a welded body, and the welded body fills each gap.

The embodiment of the invention also discloses a double-shaft linkage module, which comprises: two shaft levers, each defining a central axis; wherein, the outer surface of each shaft lever is concavely provided with at least one spiral track groove; a linkage member clamped between the two shaft levers; one of the two shaft levers can rotate to drive the other shaft lever to rotate synchronously through the linkage piece; the clamping type torsion assembly comprises two clamping pieces which are mutually assembled, and each clamping piece comprises a connecting part and two arc-shaped wing parts which are formed by respectively extending from the connecting part to different sides; the two clamping pieces are opposite to each other and clamp the two shaft rods, the two connecting parts are assembled with each other, the two arc-shaped wing parts of each clamping piece are abutted to the two shaft rods respectively, and the tail ends of the two arc-shaped wing parts of any one clamping piece are spaced from the tail ends of the two arc-shaped wing parts of the other clamping piece and are arranged adjacently.

In summary, the interlocking device and the dual-shaft interlocking module disclosed in the embodiments of the present invention maintain the relative positions of the central axes of the two shaft rods by the structural design of the two clamping members of the clamping type torque assembly and the mutual facing and clamping of the two shaft rods, so as to make the central axes of the two shaft rods parallel and more stably limit the distance, and effectively reduce the occurrence of twisting and dislocation when the two shaft rods twist.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.

Drawings

Fig. 1 is a schematic perspective view of a linkage device according to an embodiment of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is an exploded view of fig. 1 from another perspective.

Fig. 5 is a schematic view of a drive section of the shaft of fig. 3.

Fig. 6 is a schematic sectional view along the sectional line VI-VI of fig. 1.

Fig. 7 is a schematic view of the linkage of fig. 3.

Fig. 8 is a schematic cross-sectional view of line VIII-VIII of fig. 7.

Fig. 9 is a schematic cross-sectional view along the line IX-IX in fig. 1.

Fig. 10 is a perspective view of the linkage device of fig. 1 after two external connectors are rotated 90 degrees.

Fig. 11 is a perspective view of the linkage device of fig. 1 after two external connectors are rotated 180 degrees.

Detailed Description

The following description is provided for the embodiments of the "linkage device and biaxial linkage module" disclosed in the present invention by specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

Please refer to fig. 1 to 11, which are exemplary embodiments of the present invention, and it should be noted that, in the embodiments, the related numbers and shapes mentioned in the accompanying drawings are only used for describing the embodiments of the present invention in detail, so as to facilitate the understanding of the contents of the present invention, and not for limiting the scope of the present invention.

As shown in fig. 1 to 3, the present embodiment discloses a linkage device 100, which includes two shaft rods 1, a linkage member 2 clamped between the two shaft rods 1, two external connectors 4 respectively fixed to the ends of the same side of the two shaft rods 1, a clamping type torsion assembly 3 installed on the two shaft rods 1, and a plurality of torsion pieces 5 stacked and installed on the two shaft rods 1. The two shaft rods 1, the linking member 2, and the clamping torque assembly 3 can be defined as a dual-axis linking module (not shown) in the present embodiment. The construction of each component and its connection in the linkage 100 will be described separately below.

Referring to fig. 3 to 5, the two shafts 1 each define a central axis L, and the central axes L of the two shafts 1 are parallel to each other; two parallel spiral track grooves 111, a first catching groove 121 located at one side (for example, the left side in fig. 4) of the two spiral track grooves 111, and a second catching groove 122 located at the other side (for example, the right side in fig. 4) of the two spiral track grooves 111 are concavely formed on the outer surface of each shaft rod 1. The two spiral track grooves 111 of any one of the shafts 1 face the two spiral track grooves 111 of the other shaft 1, respectively. Further, the two shafts 1 are arranged in mirror symmetry in the embodiment, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the number of the spiral track grooves 111 may be at least one.

In other words, the shaft 1 includes a driving section 11, two torque sections 12 extending from two ends of the driving section 11, and two end sections 13, 13' extending from two torque sections 12. Wherein, the driving section 11 is formed with the two spiral track grooves 111; one of the two torque sections 12 is formed with the first retaining groove 121, the other of the two torque sections 12 is formed with the second retaining groove 122, and the driving section 11 is substantially cylindrical and has a maximum outer diameter which is the maximum outer diameter of the shaft rod 1. One end 13' is a cylinder with a non-circular cross section, so as to be inserted into any one of the external connectors 4 and fixed with each other.

Referring to fig. 4 to 6, the helix angle σ (see fig. 5) of each of the spiral track grooves 111 is between 40 degrees and 60 degrees. The spiral angle σ is illustrated as 45 degrees in this embodiment, but the invention is not limited thereto. The depth D (fig. 6) of each spiral track groove 111 is between 1/14 and 1/18 of the maximum outer diameter of the shaft 1 (e.g., the driving section 11), and the depth D of the spiral track groove 111 is substantially 1/16 of the maximum outer diameter of the shaft 1 (e.g., the driving section 11). Furthermore, a projection region P formed by projecting each spiral track groove 111 to a plane along the length direction (e.g., the direction of the central axis L) of the shaft 1 is arc-shaped (e.g., FIG. 5), and the central angle σ 111 of the projection region P is approximately within 180 degrees, and the central angle σ 111 is 180 degrees in the embodiment, but the invention is not limited thereto.

Referring to fig. 4 and fig. 6 to 8, in the embodiment, the linkage member 2 includes two linkage blocks 21 and a fixing member 22 for connecting and fixing the linkage blocks 21, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the linking member 2 may also be a one-piece structure integrally formed.

In the embodiment, the two coupling blocks 21 have substantially the same structure, so for convenience of describing the embodiment, only the structure of a single coupling block 21 is described below, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the two linkage blocks 21 may have a slightly different structure.

The linkage block 21 includes a block 211 and a cylinder 212 mounted on the block 211. The block 211 is formed with a large curved surface 2111, a small curved surface 2112, and a through hole 2113 penetrating the large curved surface 2111 and the small curved surface 2112; the large curved surface 2111 and the small curved surface 2112 are respectively recessed on two opposite sides of the block 211. More specifically, the large curved surface 2111 and the small curved surface 2112 are substantially arc-shaped, and a center C2111 of the large curved surface 2111 and a center C2112 of the small curved surface 2112 are respectively disposed at opposite sides of the block 211 and are spaced apart from each other. For example, in other embodiments not shown in the present invention, the linkage block 21 may also be a one-piece structure integrally formed.

In this embodiment, the small curved surface 2112 has a length corresponding to the central axis L, the large curved surface 2111 also has a length corresponding to the central axis L, and the length of the small curved surface 2112 is 1/2 to 1/3 of the large curved surface 2111, but the present invention is not limited thereto.

One end of the perforation 2113 communicates with the center of the small curved surface 2112, and the other end of the perforation 2113 communicates with the large curved surface 2111. In more detail, the through hole 2113 extends from the small curved surface 2112 to the large curved surface 2111 in a direction perpendicular to either of the central axes L, and the through hole 2113 is located adjacent to one side of the block 211.

The cylinder 212 includes an embedding portion 2121 embedded and fixed in the through hole 2113 and two driving portions 2122 respectively extending from two ends of the embedding portion 2121, each of the driving portions 2122 is substantially hemispherical in the present embodiment, and the hemispherical edge is substantially aligned with the embedding portion 2121. The two driving portions 2122 have substantially the same shape in the present embodiment, and one of the two driving portions 2122 is exposed out of the large curved surface 2111 of the block 211, while the other of the two driving portions 2122 is exposed out of the small curved surface 2112.

The above is a description of the structure of a single interlocking block 21, and the following description is provided of the positional relationship between two interlocking blocks 21. Wherein, in a direction perpendicular to the two central axes L, the blocks 211 of the two linkage blocks 21 abut against each other. The large curved surface 2111 concavely formed in each of the linking blocks 21 is aligned with the small curved surface 2112 concavely formed in another linking block 21, and the large curved surface 2111 and the small curved surface 2112 together form a matching surface S of the linking member 2 (that is, the linking member 2 has two matching surfaces S in a concave shape). For example, in other embodiments not shown in the present invention, the large curved surface 2111 concavely formed in each of the linking blocks 21 is not aligned with the small curved surface 2112 concavely formed in another linking block 21, and the large curved surface 2111 and the small curved surface 2112 together form the matching surface S of the linking member 2.

In other words, each of the matching surfaces S is formed by two of the linkage blocks 21, the two driving portions 2122 of each of the linkage blocks 21 are respectively located at the two matching surfaces S, and the two driving portions 2122 located on any one of the matching surfaces S and belonging to different linkage blocks 21 are respectively located at two ends of the matching surface S and arranged along a direction parallel to any one of the central axes L. In the embodiment, the four driving portions 2122 of the linking member 2 are disposed substantially in mirror symmetry, but the invention is not limited thereto.

Furthermore, a gap G1 is left between the two driving portions 2122 of any one of the matching surfaces S, and the fixing member 22 is connected and fixed between the two linkage blocks 21, so that the relative positions of the two linkage blocks 21 are kept fixed. In the embodiment, the fixing member 22 is defined as a welding body 22a, and the welding body 22a fills each gap G1. For example, in other embodiments not shown, the welding body 22a can be replaced by other members (such as a rubber body).

In more detail, the linkage 2 is clamped between two shafts 1, and the two mating surfaces S respectively face the two shafts 1, so that each mating surface S receives a portion (e.g., the driving section 11) of the corresponding shaft 1. Further, in each of the linkage blocks 21, the large curved surface 2111 and the small curved surface 2112 respectively face the two shaft rods 1, and the two driving portions 2122 respectively penetrate through the two spiral track grooves 111.

Moreover, in order to stabilize the connection relationship between the two shaft rods 1 and the linkage block 21, the stability of the connection relationship between the two shaft rods 1 and the linkage block 21 is further improved by the following structural design.

Specifically, in a cross section of the two shaft rods 1 and the linkage block 21 of the present embodiment (for example, fig. 6, the cross section is a section perpendicular to the central axis L of any one of the shaft rods 1 in the present embodiment), each of the shaft rods 1 (for example, the driving section 11) is substantially circular, each of the large curved surfaces 2111 and the small curved surfaces 2112 is substantially arc-shaped, and a center C2111 of the large curved surface 2111 and a center C2112 of the small curved surface 2112 are located on the two central axes L, respectively. The radius R2111 of the large curved surface 2111 is substantially equal to the radius R11 of the corresponding shaft 1, and the radius R2112 of the small curved surface 2112 is substantially equal to the radius R11 of the corresponding shaft 1.

The central angle σ 2111 of the large curved surface 2111 is substantially equal to the central angle σ 2112 of the small curved surface 2112, and the central angle σ 2111 of the large curved surface 2111 and the central angle σ 2112 of the small curved surface 2112 are preferably both between 120 degrees and 140 degrees (the central angle σ 2111 of the large curved surface 2111 or the central angle σ 2112 of the small curved surface 2112 in this embodiment is substantially 130 degrees), but the present invention is not limited to the above condition.

Referring to fig. 10 and 11, the two driving portions 2122 of each linkage block 21 are disposed through the two spiral track grooves 111 that are respectively located on the two shaft rods 1 and face each other. One of the two shaft levers 1 can rotate to drive the other shaft lever 1 to rotate synchronously through the two linkage blocks 21 (or the linkage 2), and the linkage 2 moves along a linear direction parallel to the central axis L.

Referring to fig. 1 and 2, the two external connectors 4 are respectively fixed to two end sections 13 located on the same side of the two shafts 1 (e.g., the left side of the two shafts 1 in fig. 1) for being respectively fixed to two external members (not shown in the drawings, such as a display and a keyboard), and two end sections 13' located on the other side of the two shafts 1 (e.g., the right side of the two shafts 1 in fig. 1) are suspended. That is, in each of the shafts 1 of the present embodiment, the end section 13' in a suspended state excludes the outer joint 4 from being fixed.

Referring to fig. 3, 4 and 9, the clamping torque assembly 3 includes two clamping members 31a and 31b assembled with each other and facing each other, and a plurality of locking members 32 screwed to the two clamping members 31a and 31 b. It should be noted that, in other embodiments not shown in the present invention, the number of the locking pieces 32 may also be at least one; alternatively, the two clamping members 31a and 31b of the clamping torque assembly 3 may be assembled with each other, so as to omit the locking member 32; alternatively, the locking member 32 may be replaced with another member (e.g., a rivet).

Each of the clamping members 31a and 31b includes a connecting portion 311 and two arc-shaped wing portions 312 extending from the connecting portion 311 toward different sides. Further, the two arc-shaped wing portions 312 are disposed in mirror symmetry with respect to the connecting portion 311, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the two arc-shaped wings 312 may also be disposed in a non-mirror-symmetrical manner with respect to the connecting portion 311.

Each of said clamping members 31a, 31b has a cross-section substantially in the shape of a "3", which in the present embodiment is perpendicular to said central axis L. Furthermore, each of the arc-shaped wing parts 312 can have a certain degree of structural elasticity with respect to the connection part 311 (i.e., each of the arc-shaped wing parts 312 can elastically swing with respect to the connection part 311), but the invention is not limited thereto.

The holders 31a, 31b have different structures from each other in the present embodiment, so the structure of the holder 31a will be described below, respectively, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the two clamping members 31a may have substantially the same structure (for example, the linkage device 100 employs the two clamping members 31 a).

Further, in one of the two clips 31a, 31b, each of the arc-shaped wing portions 312 has the same thickness d as the connecting portion 311, and the two arc-shaped wing portions 312 can elastically swing with respect to the connecting portion 311. Further, the clamping member 31a can be formed by bending a sheet structure with elasticity, but the invention is not limited thereto.

In the other clamp 31b of the two clamps 31a, 31b, the connecting portion 311 is substantially block-shaped, the outer surface of one end of the two arc-shaped wings 312 is tangent to the adjacent surface of the connecting portion 311, the inner surfaces of the two arc-shaped wings 312 and the adjacent surface of the connecting portion 311 are connected to form an arc shape together, and the connecting portion 311 and the arc-shaped wings 312 can accommodate a part of the shaft 1 (such as the torque section 12). The holding member 31b is formed at an inner surface thereof with a plurality of grooves 3121, each of the grooves 3121 is elongated and parallel to any one of the central axes L, and the plurality of grooves 3121 are recessed on the inner surface of the arc-shaped wing part 312 and the adjacent surface of the connecting part 311 at equal intervals from each other.

The locking member 32 is screwed to the two connecting portions 311, and the two connecting portions 311 are separated from each other by a distance W. In more detail, the locking member 32 can adjust the distance W, so as to change the clamping force of the two clamping members 31a and 31b on the two shafts 1 (e.g. torque sections 12).

Referring to fig. 3, 4 and 9, the clamping torque assembly 3 is mounted in the first retaining groove 121 of the two shafts 1 and is assembled to be adjacent to the two external connectors 4. The two arc-shaped wing parts 312 of each of the clamping members 31a and 31b are respectively accommodated in the two first retaining grooves 121, and the centers of the two arc-shaped wing parts 312 are located on the central axis L. The interlocking device 100 can maintain the relative position of the two central axes L by attaching the two clamping pieces 31a and 31b to the two shafts 1.

Further, in the two clamping pieces 31a and 31b, the connecting portion 311 of one of the clamping pieces 31a does not contact the two first latching grooves 121, and the two arc-shaped wing portions 312 of the other clamping piece 31b and the connecting portion 311 contact the two first latching grooves 121 together. The ends of the two arc-shaped wings 312 of one of the clamping members 31a and the ends of the two arc-shaped wings 312 of the other clamping member 31b are respectively disposed adjacent to each other and spaced by a gap G2.

Furthermore, in order to stabilize the connection relationship between the two first latching grooves 121 and the two clamping members 31a and 31b, the following structural design is adopted in this embodiment to further improve the stability of the connection relationship between any one of the first latching grooves 121 and the corresponding clamping members 31a and 31 b.

Specifically, in a cross section of the two first latching grooves 121 and the two clamping members 31a and 31b in this embodiment (for example, fig. 9, the cross section is a cross section perpendicular to the central axis L of any one of the shaft rods 1 in this embodiment), each first latching groove 121 is substantially circular, the arc-shaped wing 312 of each clamping member 31a and 31b is substantially arc-shaped, and the arc-shaped wing 312 and the first latching groove 121 are disposed correspondingly to each other. Further, the centers C312 of the arc-shaped wing portions 312 are respectively located on the two central axes L, and the radius of each arc-shaped wing portion 312 of any one of the clamping pieces 31a and 31b is substantially equal to the radius R121 of the corresponding first retaining groove 121.

In one of the two clamping pieces 31a, 31b, the central angle σ 312 of each arc-shaped wing 312 abutting against the corresponding first retaining groove 121 is preferably between 80 degrees and 100 degrees (in the present embodiment, the central angle σ 312 of the arc-shaped wing 312 abutting against the first retaining groove 121 is approximately 90 degrees). In the other clamping member 31b of the two clamping members 31a, 31b, the central angle σ 312 'of the arc-shaped wing 312 abutting against the connecting portion 311 corresponding to the first retaining groove 121 is not less than 180 degrees, preferably between 180 degrees and 200 degrees (in the embodiment, the central angle σ 312' of the arc-shaped wing 312 abutting against the connecting portion 311 against the first retaining groove 121 is substantially 190 degrees), but the invention is not limited by the above condition.

The gap G2 forms a central angle σ 1 of less than 90 degrees corresponding to the central axis L, and the central angle σ 1 is preferably less than 45 degrees (the central angle σ 1 is approximately 30 degrees in the present embodiment as an example), but the present invention is not limited to the above condition.

Referring to fig. 3 and 4, a plurality of torque plates 5 are stacked and mounted in the second retaining grooves 122 of the two shaft rods 1. In this embodiment, one end of each of the two second retaining grooves 122 is provided with a retaining member 1221, and each of the retaining members 1221 can fix corresponding portions of the plurality of torque pieces 5, so that the plurality of torque pieces 5 are retained on the two second retaining grooves 122 without being separated from the two second retaining grooves 122. In another embodiment, the second latching groove 122 can be provided with another clamping type torsion assembly instead of the plurality of torsion pieces 5.

The above is a description of the structure of the dual-axis driving module of this embodiment, and the following description will describe the operation of the dual-axis driving module. Wherein, one shaft lever 1 of the two shaft levers 1 can rotate to drive the other shaft lever 1 to rotate synchronously through the linkage member 2 (for example, fig. 1, 10 and 11). Further, when one of the shafts 1 (e.g., the left shaft 1 in fig. 10) rotates, the two spiral track grooves 111 thereof press the two driving parts 2122 (e.g., the left driving part 2122 of the linkage member 2) accommodated therein, so that the two driving parts 2122 move along the corresponding spiral track grooves 111, and further the two driving parts 2122 on the other side of the linkage member (e.g., the right driving part 2122 of the linkage member 2) press the two spiral track grooves 111 of the other shaft 1 (e.g., the right shaft 1 in fig. 10), so as to force the other shaft 1 to rotate synchronously. When the two shafts 1 rotate, the linkage member 2 moves linearly along a direction parallel to any one of the shafts 1 having the central axis.

The clamping type torsion assemblies 3 are mounted on the two shaft levers 1, so that the shaft levers 1 are fixed on the central axis L to rotate, and the situation that the shaft levers 1 are deviated is avoided. Furthermore, the two shaft rods 1 can rotate relative to the clamping type torque assembly 3, so that the two first buckling grooves 121 can rub against the clamping type torque assembly 3 to generate torque. The linking device 100 can adjust the distance W between the two connecting portions 311 by the locking member 32, so as to achieve the purpose of adjusting the torque provided by the clamping type torque assembly 3.

[ technical effects of embodiments of the present invention ]

In summary, the interlocking device 100 and the dual-axis interlocking module disclosed in the embodiments of the present invention maintain the relative position of the central axes L of the two shaft rods 1 by the structural design of the two clamping pieces 31a and 31b of the clamping type torque assembly 3 and the mutual facing and clamping of the two shaft rods 1, so that the central axes L of the two shaft rods 1 are parallel and the distance is more stably limited, and the occurrence of twisting and misalignment can be effectively reduced when the two shaft rods 1 are twisted.

Furthermore, the clamping torque assembly 3 can adjust the friction force for clamping the two shafts 1 through the locking member 32, so that lifting the two clamping members 31a and 31b generates sufficient torque force for the shafts 1. The torque range and the overall torque stability can be accurately controlled, and the two shaft levers 1 can be linked more smoothly.

In addition, the linkage device 100 and the biaxial linkage module disclosed in the present embodiment include two linkage blocks 21 through the linkage 2, so as to facilitate the connection relationship between the two shaft rods 1 and the linkage 2 to be more stable. For example, the linkage member 2 is disposed between the two shaft rods 1 in advance through the two linkage blocks 21, the two driving portions 2122 of each linkage block 21 are respectively disposed in the two opposite spiral track grooves 111 in a penetrating manner, and then the two linkage blocks 21 are fixedly connected, so that each driving portion 2122 can be more accurately disposed in the corresponding spiral track groove 111, and the tolerance generated in the manufacturing and assembling of the linkage device 100 can be greatly reduced (that is, the assembling accuracy of the linkage device 100 can be greatly improved), so that the linkage member 2 can be stably clamped between the two shaft rods 1 and can also be stably moved between the two shaft rods 1.

The disclosure is only a preferred embodiment of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention.