Shaft coupling device

Abstract

The application discloses a connecting shaft tool, which comprises a support disc, a first sleeve connected to one side of the support disc and used for connecting with a round shaft, and a second sleeve connected to the other side of the support disc and used for connecting with a hexagonal shaft; the first sleeve comprises a plurality of first sleeve modules distributed along a circumference, and a first driving mechanism for driving the first sleeve modules to slide radially is connected between each first sleeve module and the support disc; the second sleeve comprises a plurality of second sleeve modules distributed along a circumference, and a second driving mechanism for driving the second sleeve modules to slide radially is connected between each second sleeve module and the support disc. The connecting shaft tool disclosed by the application can be matched with round shafts and hexagonal shafts with different radii, has a wide application range, and improves the performance of products.

Description

Technical Field

[0001] The present invention relates to the technical field of couplings, in particular to a coupling tool. Background Art

[0002] The oil pump is the power unit of the unit. If the pump has problems pumping oil, it needs to be disassembled and the pump's main shaft (circular shaft) rotated to perform an oil pumping test. Manual rotation tests on site often fail to achieve the required oil discharge pressure and speed. Therefore, an electric tachometer is used to rotate the oil pump's main shaft to meet the required discharge pressure and speed. Handheld electric tachometers are typically connected to the main shaft via a coupling.

[0003] However, existing couplings can only be used with a spindle of a specific radius on one end, and with a tool shaft of a specific radius on the other end. To accommodate spindles or tool shafts of different radii, a different coupling model must be used. This limited functionality and applicability leaves much to be desired, and product diversification needs to be improved.

[0004] In view of this, it is necessary to provide a new type of coupling tool. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new type of shaft coupling that can be matched with circular shafts and hexagonal shafts of different radii, has a wide range of applications, and improves product performance.

[0006] The technical solution of the present invention provides a shaft coupling tool, comprising a support plate, a first sleeve connected to one side of the support plate and used to connect to a round shaft, and a second sleeve connected to the other side of the support plate and used to connect to a hexagonal shaft;

[0007] The first sleeve has a circular assembly hole, and the second sleeve has a hexagonal assembly hole;

[0008] The first sleeve includes a plurality of first sleeve modules distributed along the circumference, the first sleeve modules are slidably connected to the support disk, each of the first sleeve modules is provided with a first telescopic pressing plate mechanism for pressing the circular shaft, a first guide mechanism for guiding the radial sliding of the first sleeve module is connected between each of the first sleeve modules and the support disk, and a first driving mechanism for driving the first sleeve module to slide back and forth radially is connected between each of the first sleeve modules and the support disk;

[0009] The second sleeve includes a plurality of second sleeve modules distributed along the circumference, the second sleeve modules are slidably connected to the support disk, each second sleeve module is provided with a second telescopic pressure plate mechanism for pressing the hexagonal shaft, a second guide mechanism for guiding the radial sliding of the second sleeve module is connected between each second sleeve module and the support disk, and a second drive mechanism for driving the second sleeve module to slide radially is connected between each second sleeve module and the support disk.

[0010] In one of the optional technical solutions, the first sleeve includes a first cylinder wall and an annular partition connected to the inner side of the first cylinder wall, and the annular partition is provided with a positioning hole for cooperating with the positioning pin of the circular shaft;

[0011] The first cylinder wall comprises a plurality of first cylinder wall units arranged along the circumferential direction, and correspondingly, the annular partition comprises a plurality of partition units arranged along the circumferential direction;

[0012] A first sleeve module is formed by connecting a partition plate unit and a first sleeve wall unit;

[0013] Each of the first cylinder wall units is slidably connected to the support plate, and each of the partition units is provided with at least one positioning hole;

[0014] Each of the first cylinder wall units is equipped with a set of the first telescopic pressing plate mechanism;

[0015] The first guiding mechanism and the first driving mechanism are respectively connected between the first cylinder wall unit and the supporting disk.

[0016] In one of the optional technical solutions, the second sleeve includes a second cylinder wall, the second cylinder wall includes six second cylinder wall units arranged along the circumferential direction, and the inner surface of the second cylinder wall unit is the flat portion of the hexagonal assembly hole;

[0017] Each of the second cylinder wall units is a second sleeve module;

[0018] Each of the second cylinder wall units is equipped with a set of the second telescopic pressing plate mechanism;

[0019] The second guiding mechanism and the second driving mechanism are respectively connected between the second cylinder wall unit and the supporting disk.

[0020] In one of the optional technical solutions, the first driving mechanism includes a first motor mounted on the edge of the support plate and a first screw connected to the first motor;

[0021] The first screw extends along the radial direction of the support plate and is threadedly connected to the first sleeve module;

[0022] The second driving mechanism includes a second motor mounted on the edge of the support plate and a second screw connected to the second motor;

[0023] The second screw extends along the radial direction of the support disk and is threadedly connected to the second sleeve module.

[0024] In one of the optional technical solutions, the support plate is provided with a first limiting plate on the inner side of the first motor for limiting the position of the first sleeve module, and the first screw gap passes through the first limiting plate;

[0025] The support plate is provided with a second limiting plate on the inner side of the second motor for limiting the second sleeve module, and the second screw rod passes through the second limiting plate.

[0026] In one of the optional technical solutions, the first telescopic pressure plate mechanism includes a first telescopic actuator and a first pressure plate connected to the first telescopic actuator;

[0027] The first telescopic actuator is installed in the first sleeve module and is capable of telescoping along the radial direction of the first sleeve, and the first pressure plate is located inside the first sleeve module;

[0028] The second telescopic pressure plate mechanism includes a second telescopic actuator and a second pressure plate connected to the second telescopic actuator;

[0029] The second telescopic actuator is installed in the second sleeve module and is capable of telescoping along the radial direction of the second sleeve. The second pressure plate is located inside the second sleeve module.

[0030] In one of the optional technical solutions, the support plate is provided with a first docking mechanism for docking with the circular shaft;

[0031] The first docking mechanism includes a first docking plate having a first magnet and a first telescopic driving member installed in the supporting plate and used to drive the first docking plate to telescope along the axial direction of the first sleeve;

[0032] The first docking plate is coaxially arranged with the first sleeve. The side of the support plate facing the first sleeve has a first receiving groove. When the first telescopic driving member is in an initial state, the first docking plate is received in the first receiving groove.

[0033] In one of the optional technical solutions, the support plate is provided with a second docking mechanism for docking with the hexagonal shaft;

[0034] The second docking mechanism includes a second docking plate having a second magnet and a second telescopic driving member installed in the supporting plate and used to drive the second docking plate to extend and retract along the axial direction of the second sleeve;

[0035] The second docking plate is coaxially arranged with the second sleeve. The side of the support plate facing the second sleeve has a second receiving groove. When the second telescopic driving member is in an initial state, the second docking plate is received in the second receiving groove.

[0036] In one of the optional technical solutions, the support plate has a first annular groove on a side facing the first sleeve, and the first guide mechanism and the first drive mechanism are respectively located in the first groove;

[0037] The support plate has a second annular groove on one side facing the second sleeve, and the second guide mechanism and the second drive mechanism are respectively located in the second groove.

[0038] In one of the optional technical solutions, the first guide mechanism includes at least one first guide rod arranged along the radial direction of the support plate, and the first sleeve module is slidably connected to the first guide rod;

[0039] The second guide mechanism includes at least one second guide rod arranged along the radial direction of the support plate, and the second sleeve module is slidably connected to the second guide rod.

[0040] The above technical solution has the following beneficial effects:

[0041] The coupling tool provided by the present invention has a first sleeve divided into multiple first sleeve modules, each first sleeve module is provided with a first telescopic pressure plate mechanism, and each first sleeve module can be driven radially by a first driving mechanism, so that the inner diameter of the first sleeve can be adjusted to match circular shafts of different radii.

[0042] The coupling tool provided by the present invention has a second sleeve divided into multiple second sleeve modules, each second sleeve module is provided with a second telescopic pressure plate mechanism, and each second sleeve module can be driven radially by a second driving mechanism, so that the inner diameter of the second sleeve can be adjusted to match hexagonal shafts with different radii.

[0043] In summary, the shaft coupling provided by the present invention can be matched with circular shafts and hexagonal shafts of different radii, has a wide range of applications, and improves product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0045] Figure 1 A cross-sectional view of a coupling tool provided by one embodiment of the present invention along the axial direction;

[0046] Figure 2 is a schematic diagram of the first sleeve in an initial state;

[0047] Figure 3 is a schematic diagram of the first sleeve in an open state;

[0048] Figure 4 is a cross-sectional view of the first sleeve along the first spring when in an initial state;

[0049] Figure 5 is a cross-sectional view of the first sleeve along the first spring when the first sleeve is in an expanded state;

[0050] Figure 6 is a schematic diagram of the second sleeve in an initial state;

[0051] Figure 7 is a schematic diagram of the second sleeve in an open state;

[0052] Figure 8 is a cross-sectional view of the second sleeve along the third spring when in an initial state;

[0053] Figure 9 is a cross-sectional view of the second sleeve along the third spring when the second sleeve is in an expanded state;

[0054] Figure 10 It is a cross-sectional view of the first telescopic pressing plate mechanism installed on the first cylinder wall;

[0055] Figure 11 It is a cross-sectional view of the second telescopic pressing plate mechanism installed on the second cylinder wall;

[0056] Figure 12 It is a schematic diagram of the assembly of the first drive mechanism, the second drive mechanism, the first guide mechanism, the second guide mechanism, the support plate, the first cylinder wall and the second cylinder wall;

[0057] Figure 13 is a cross-sectional view of a support plate having a first docking mechanism and a second docking mechanism;

[0058] Figure 14 It is a front view of a circular shaft with a disc and a locating pin;

[0059] Figure 15 for Figure 14 A top view of

[0060] Figure 16 A top view of the hexagonal shaft. DETAILED DESCRIPTION

[0061] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0062] like Figure 1-3 、 Figure 6-7 and Figure 14-16 As shown, a coupling tool provided by one embodiment of the present invention includes a support plate 1, a first sleeve 2 connected to one side of the support plate 1 and used to connect to the round shaft 100, and a second sleeve 3 connected to the other side of the support plate 1 and used to connect to the hexagonal shaft 200.

[0063] The first sleeve 2 has a circular assembly hole 20 , and the second sleeve 3 has a hexagonal assembly hole 30 .

[0064] The first sleeve 2 includes a plurality of first sleeve modules 2a distributed along the circumference, each first sleeve module 2a is slidably connected to the support disk 1, and each first sleeve module 2a is provided with a first telescopic pressure plate mechanism 23 for pressing the circular shaft 100. A first guide mechanism 6 for guiding the radial sliding of the first sleeve module 2a is connected between each first sleeve module 2a and the support disk 1, and a first drive mechanism 4 for driving the first sleeve module 2a to slide radially is connected between each first sleeve module 2a and the support disk 1.

[0065] The second sleeve 3 includes a plurality of second sleeve modules 3a distributed along the circumference, each second sleeve module 3a is slidably connected to the support disk 1, and each second sleeve module 3a is provided with a second telescopic pressure plate mechanism 32 for pressing the hexagonal shaft 200. A second guide mechanism 7 for guiding the radial sliding of the second sleeve module 3a is connected between each second sleeve module 3a and the support disk 1, and a second drive mechanism 5 for driving the second sleeve module 3a to slide radially is connected between each second sleeve module 3a and the support disk 1.

[0066] The coupling provided by the present invention is primarily used to connect a round shaft 100 (main shaft) to a hexagonal shaft 200. Round shaft 100 can be the main shaft of a pump, with a disc 101 positioned at its top as needed, and a locating pin 102 positioned on disc 101 as needed. Hexagonal shaft 200 can be the output shaft of an electric speed tool.

[0067] The shaft coupling provided by the present invention comprises a support plate 1, a first sleeve 2 and a second sleeve 3, wherein the first sleeve 2 and the second sleeve 3 are assembled on opposite sides of the support plate 1. The radius of the support plate 1 is larger than that of the first sleeve 2 and the second sleeve 3.

[0068] The first sleeve 2 has a circular fitting hole 20 for fitting the round shaft 100 .

[0069] The first sleeve 2 includes a plurality of first sleeve modules 2a distributed along the circumference, and each first sleeve module 2a is a part of the first sleeve 2. Each first sleeve module 2a is in an arc shape or a fan shape. Each first sleeve module 2a is slidably connected to the support disk 1 and can slide radially along the support disk 1 to achieve contraction and expansion. As needed, a first T-shaped end can be configured at one end of the first sleeve module 2a and the support disk 1, and a first T-shaped groove extending radially can be configured on the support disk 1. The first T-shaped end is clearance-fitted in the first T-shaped groove to slide the first sleeve module 2a and the support disk 1 together, and to prevent the first sleeve module 2a from being separated from the support disk 1.

[0070] Each first sleeve module 2 a is provided with a first telescopic pressing plate mechanism 23 . The first telescopic pressing plate mechanism 23 is telescopic and is used to press the circular shaft 100 assembled in the circular assembly hole 20 .

[0071] A first guide mechanism 6 is connected between each first sleeve module 2a and the support plate 1. The first guide mechanism 6 extends radially along the support plate 1. The first sleeve module 2a is slidably connected to the first guide mechanism 6 and is used to guide the radial sliding of the first sleeve module 2a. The first guide mechanism 6 can be a guide rail, a guide rod, or other guide mechanism.

[0072] A first driving mechanism 4 is connected between each first sleeve module 2a and the support plate 1. The first driving mechanism 4 can be a telescopic driving mechanism such as an oil cylinder, an air cylinder, a motor screw, etc. The first sleeve module 2a is connected to the output end of the first driving mechanism 4 to drive the first sleeve module 2a to slide back and forth radially along the support plate 1.

[0073] When it is necessary to shrink or expand the first sleeve module 2a to change the radius of the circular assembly hole 20 of the first sleeve 2 so as to assemble with different circular shafts 100 or discs 101, all the first driving mechanisms 4 are operated synchronously to drive all the first sleeve modules 2a to slide synchronously along the radial direction of the support disk 1.

[0074] When the circular shaft 100 or the circular disk 101 assembled into the circular assembly hole 20 needs to be clamped, all the first telescopic pressure plate mechanisms 23 are operated synchronously to clamp the circular shaft 100 or the circular disk 101 and arrange the circular shaft 100 or the circular disk 101 coaxially with the circular assembly hole 20.

[0075] The second sleeve 3 has a hexagonal fitting hole 30 for fitting the hexagonal shaft 200 .

[0076] The second sleeve 3 includes a plurality of second sleeve modules 3a distributed along the circumference, and each second sleeve module 3a is a part of the second sleeve 3. Each second sleeve module 3a is in an arc shape or a sector shape.

[0077] Each second sleeve module 3a is slidably connected to the support disc 1 and can slide radially along the support disc 1 to achieve contraction and expansion. As needed, a second T-shaped end can be configured between one end of the second sleeve module 3a and the support disc 1. A second T-shaped slot extending radially is configured on the support disc 1. The second T-shaped end is loosely fitted in the second T-shaped slot, thereby slidingly assembling the second sleeve module 3a and the support disc 1 together and preventing the second sleeve module 3a from separating from the support disc 1.

[0078] Each second sleeve module 3 a is provided with a second telescopic pressing plate mechanism 32 . The second telescopic pressing plate mechanism 32 is telescopic and is used to press the hexagonal shaft 200 assembled in the hexagonal assembly hole 30 .

[0079] A second guide mechanism 7 is connected between each second sleeve module 3a and the support plate 1. The second guide mechanism 7 is arranged along the radial extension of the support plate 1. The second sleeve module 3a is slidably connected to the second guide mechanism 7 and is used to guide the radial sliding of the second sleeve module 3a. The second guide mechanism 7 can be a guide mechanism such as a guide rail or a guide rod.

[0080] A second driving mechanism 5 is connected between each second sleeve module 3a and the support plate 1. The second driving mechanism 5 can be a telescopic driving mechanism such as an oil cylinder, an air cylinder, a motor screw, etc. The second sleeve module 3a is connected to the output end of the second driving mechanism 5 to drive the second sleeve module 3a to slide back and forth radially along the support plate 1.

[0081] When it is necessary to shrink or expand the second sleeve module 3a to change the radius of the hexagonal assembly hole 30 of the second sleeve 3 so as to assemble with different hexagonal shafts 200, all the second driving mechanisms 5 are operated to operate synchronously to drive all the second sleeve modules 3a to slide synchronously along the radial direction of the support plate 1.

[0082] When the hexagonal shaft 200 assembled into the hexagonal assembly hole 30 needs to be clamped, all the second telescopic pressing plate mechanisms 32 are synchronously operated to clamp the hexagonal shaft 200 and arrange the hexagonal shaft 200 coaxially with the hexagonal assembly hole 30 .

[0083] In the present invention, the radii of the six circles tangent to the hexagonal assembly hole 30 are referred to as the radii of the hexagonal assembly hole 30 .

[0084] In the present invention, the process of the first sleeve module 2a and the second sleeve module 3a moving radially inward on the support plate 1 is called contraction, and the process of the first sleeve module 2a and the second sleeve module 3a moving radially outward on the support plate 1 is called expansion.

[0085] Therefore, the shaft coupling provided by the present invention can be matched with circular shafts 100 and hexagonal shafts 200 of different radii, has a wide range of applications, and improves product performance.

[0086] In one embodiment, Figure 1-5 As shown, the first sleeve 2 includes a first cylinder wall 21 and an annular partition 22 connected to the inner side of the first cylinder wall 21 . The annular partition 22 is provided with a positioning hole 222 for cooperating with the positioning pin 102 of the circular shaft 100 .

[0087] The first cylinder wall 21 includes a plurality of first cylinder wall units 211 arranged along the circumferential direction. Correspondingly, the annular partition 22 includes a plurality of partition units 221 arranged along the circumferential direction.

[0088] A partition plate unit 221 and a first cylinder wall unit 211 are connected to form a first sleeve module 2a.

[0089] Each first cylinder wall unit 211 is slidably connected to the support plate 1 , and each partition plate unit 221 is provided with at least one positioning hole 222 .

[0090] Each first cylinder wall unit 211 is equipped with a first telescopic pressing plate mechanism 23 .

[0091] The first guide mechanism 6 and the first drive mechanism 4 are respectively connected between the first cylinder wall unit 211 and the support plate 1 .

[0092] In this embodiment, an annular partition 22 is installed at the bottom of the inner side of the first cylinder wall 21 of the first sleeve 2. The annular partition 22 is provided with a positioning hole 222 for assembling and positioning with the positioning pin 102 on the circular shaft 100 / disc 101.

[0093] In the present embodiment, the first tube wall 21 and the annular partition 22 are divided into a plurality of units, for example, six units. Specifically, the first tube wall 21 is divided into a plurality of first tube wall units 211 along the circumferential direction, wherein two adjacent first tube wall units 211 are not connected, and the top view of each first tube wall unit 211 is arc-shaped. The annular partition 22 is correspondingly divided into a plurality of partition units 221 along the circumferential direction, wherein two adjacent partition units 221 are not connected, and each partition unit 221 is fixedly connected to the inner side of a first tube wall unit 211. A partition unit 221 is connected to a first tube wall unit 211 to form a first sleeve module 2a.

[0094] Each first cylinder wall unit 211 is in sliding connection with the support plate 1, and can slide along the radial direction of the support plate 1. Each first cylinder wall unit 211 is equipped with a set of first telescopic pressing plate mechanisms 23. Each first cylinder wall unit 211 is connected with a set of first guiding mechanisms 6 and a first driving mechanism 4.

[0095] Each partition unit 221 is provided with at least one positioning hole 222, and preferably, a plurality of positioning holes 222 are distributed along the radial direction of the annular partition 22 on each partition unit 221 to adapt to the distance variation between the positioning pins 102 on the circular shaft 100 or the circular disc 101.

[0096] When the first driving mechanism 4 drives the first cylinder wall unit 211 to contract or expand, the partition unit 221 is correspondingly contracted or expanded synchronously, so as to adapt to the distance variation between the positioning pins 102 on the circular shaft 100 or the circular disc 101.

[0097] In one embodiment, in order to make the two first sleeve modules 2a in contact in the circumferential direction when in the expanded state, the following scheme is adopted:

[0098] As shown in Figure 4-5 , a first spring 24 is sleeved on the first cylinder wall 21, and a second spring 25 is sleeved on the annular partition 22. When the first sleeve 2 is in the initial state (contracted state), that is, the two adjacent first sleeve modules 2a are in contact, the first spring 24 and the second spring 25 are in the initial state and do not provide elastic force. When the first sleeve 2 is in the expanded state, that is, the two adjacent first sleeve modules 2a are separated and not in contact, the first spring 24 and the second spring 25 are in the stretched state and provide restoring elastic force, which helps the first cylinder wall unit 211 and the partition unit 221 to contract and press towards the center, and also helps the subsequent restoration of the first cylinder wall unit 211 and the partition unit 221, and makes the two adjacent first cylinder wall units 211 and the two adjacent partition units 221 in contact, which is beneficial to improve the structural stability of the first sleeve 2 in the expanded state.

[0099] Specifically, an arc-shaped hole is formed on each first cylinder wall unit 211 and each partition unit 221, and the two ends of the first spring 24 and the second spring 25 are connected after passing through the corresponding arc-shaped holes in sequence, so as to form a circular ring-shaped spring.

[0100] In one embodiment, as shown in Figure 1 and Figure 6-9 , the second sleeve 3 includes a second cylinder wall 31, and the second cylinder wall 31 includes six second cylinder wall units 311 arranged along the circumferential direction. The inner surface of the second cylinder wall unit 311 is a planar part of the hexagonal assembly hole 30.

[0101] Each second cylinder wall unit 311 is a second sleeve module 3 a.

[0102] Each second cylinder wall unit 311 is equipped with a set of second telescopic pressing plate mechanisms 32 .

[0103] The second guiding mechanism 7 and the second driving mechanism 5 are respectively connected between the second cylinder wall unit 311 and the supporting plate 1 .

[0104] In this embodiment, the second wall 31 of the second sleeve 3 is divided into six equal sections along the circumferential direction, each section comprising a second wall unit 311. The inner surface of the second wall unit 311 serves as the flat surface of the hexagonal assembly hole 30. Each second wall unit 311 is assembled with a second retractable pressure plate mechanism 32. Each second wall unit 311 is connected to a second guide mechanism 7 and a second drive mechanism 5.

[0105] In this embodiment, the second cylindrical wall 31 is divided into six equal parts according to the plane of the hexagonal assembly hole 30. This allows the integrity of the flat portion of the hexagonal assembly hole 30 to be maintained even when the second sleeve 3 is in the expanded state. When the second cylindrical wall unit 311 is driven to move by the second driving mechanism 5, this is equivalent to directly driving the flat portion of the hexagonal assembly hole 30, facilitating structural layout and operation.

[0106] In one embodiment, in order to ensure that the two second sleeve modules 3a in the expanded state are connected in the circumferential direction, the following solution is adopted:

[0107] like Figure 8-9 As shown, a third spring 33 is sleeved on the second cylinder wall 31. When the second sleeve 3 is in the initial state (contracted state), that is, when two adjacent second sleeve modules 3a are in contact, the third spring 33 is in the initial state and does not provide elastic force. When the second sleeve 3 is in the expanded state, that is, when two adjacent second sleeve modules 3a are separated and not in contact, the third spring 33 is in the stretched state, providing a reset elastic force, which helps the second cylinder wall unit 311 to contract and press toward the center, and also helps the second cylinder wall unit 311 to subsequently reset. It also forms a connection between the two adjacent second cylinder wall units 311, which is conducive to improving the structural stability of the second sleeve 3 in the expanded state.

[0108] Specifically, an arc-shaped hole is provided on each second cylinder wall unit 311 , and the third spring 33 passes through the corresponding arc-shaped holes in sequence, and then both ends are connected to form a ring-shaped spring.

[0109] In one embodiment, Figure 1 and Figure 12 As shown, the first driving mechanism 4 includes a first motor 41 installed on the edge of the supporting plate 1 and a first screw 42 connected to the first motor 41 .

[0110] The first screw rod 42 extends in the radial direction of the support plate 1 and is threadedly connected to the first sleeve module 2 a.

[0111] The second driving mechanism 5 includes a second motor 51 mounted on the edge of the supporting plate 1 and a second screw 52 connected to the second motor 51 .

[0112] The second screw rod 52 extends in the radial direction of the support plate 1 and is threadedly connected to the second sleeve module 3 a.

[0113] In this embodiment, the first driving mechanism 4 and the second driving mechanism 5 both adopt a motor screw structure, which is easy to control.

[0114] The first driving mechanism 4 includes a first motor 41 and a first screw 42. The first motor 41 is a servo motor, which is installed at the edge of the support disk 1, specifically, it can be installed at the edge of the first groove 11 of the support disk 1. One end of the first screw 42 is connected to the output end of the first motor 41, and the other end is connected to the central part of the support plate 1 through a bearing. The first screw 42 extends radially along the support disk 1. The first sleeve module 2a has an internal threaded hole, specifically, the internal threaded hole is provided on the first barrel wall unit 211. The first screw 42 passes through the internal threaded hole of the first sleeve module 2a, and the two are threadedly connected. Thus, the first motor 41, the first screw 42 and the first sleeve module 2a constitute a linear drive mechanism similar to a screw mechanism. The forward rotation of the first motor 41 can drive the first sleeve module 2a to move toward the center of the support disk 1, and the reverse rotation of the first motor 41 can drive the first sleeve module 2a to move toward the edge of the support disk 1.

[0115] The second driving mechanism 5 includes a second motor 51 and a second screw 52. The second motor 51 is a servo motor, which is installed at the edge of the support disk 1, specifically, it can be installed at the edge of the second groove 12 of the support disk 1. One end of the second screw 52 is connected to the output end of the second motor 51, and the other end is connected to the central part of the support plate 1 through a bearing. The second screw 52 extends radially along the support disk 1. The second sleeve module 3a has an internal threaded hole, specifically, the internal threaded hole is provided on the second barrel wall unit 311. The second screw 52 passes through the internal threaded hole of the second sleeve module 3a, and the two are threadedly connected. Thus, the second motor 51, the second screw 52 and the second sleeve module 3a form a linear drive mechanism similar to a screw mechanism. The forward rotation of the second motor 51 can drive the second sleeve module 3a to move toward the center of the support disk 1, and the reverse rotation of the second motor 51 can drive the second sleeve module 3a to move toward the edge of the support disk 1.

[0116] All the first motors 41 and the second motors 51 can be centrally controlled by a control system.

[0117] In one embodiment, Figure 12 As shown, the support plate 1 is provided with a first limiting plate 13 on the inner side of the first motor 41 for limiting the first sleeve module 2 a , and the first screw rod 42 passes through the first limiting plate 13 with a gap.

[0118] A second limiting plate 14 for limiting the second sleeve module 3 a is provided on the support plate 1 on the inner side of the second motor 51 , and the second screw rod 52 passes through the second limiting plate 14 with a gap.

[0119] In this embodiment, a first limiting plate 13 is disposed inside the first motor 41 to limit the outward movement of the first sleeve module 2a and prevent it from colliding with the first motor 41. The first limiting plate 13 has a through-hole through which the first screw 42 passes. If desired, a rubber pad can be placed on the first limiting plate 13 to provide a cushioning effect.

[0120] A second stopper plate 14 is provided inside the second motor 51 to limit the outward movement of the second sleeve module 3a and prevent it from colliding with the second motor 51. The second stopper plate 14 has a through hole through which the second screw 52 passes. If desired, a rubber pad can be placed on the second stopper plate 14 to provide a cushioning effect.

[0121] In one embodiment, Figure 10-11 As shown, the first telescopic pressure plate mechanism 23 includes a first telescopic actuating member 231 and a first pressure plate 232 connected to the first telescopic actuating member 231 .

[0122] The first telescopic actuator 231 is installed in the first sleeve module 2a and can be telescoped along the radial direction of the first sleeve 2. The first pressure plate 232 is located on the inner side of the first sleeve module 2a.

[0123] The second telescopic pressure plate mechanism 32 includes a second telescopic actuating member 321 and a second pressure plate 322 connected to the second telescopic actuating member 321 .

[0124] The second telescopic actuator 321 is installed in the second sleeve module 3 a and can be telescoped along the radial direction of the second sleeve 3 . The second pressing plate 322 is located inside the second sleeve module 3 a .

[0125] In this embodiment, the first telescopic pressure plate mechanism 23 includes a first telescopic actuator 231 and a first pressure plate 232. The first pressure plate 232 is a flat or curved plate. The first pressure plate 232 is connected to the output end of the first telescopic actuator 231. The first telescopic actuator 231 can be a linear drive element such as an oil cylinder, an air cylinder, or a motor screw. It is used to drive the first pressure plate 232 to extend and retract along the radial direction of the first sleeve 2, thereby compressing or releasing the circular shaft 100 / disc 101.

[0126] The second telescopic clamp mechanism 32 comprises a second telescopic actuating member 321 and a second clamp 322. The second clamp 322 is a flat plate. The second clamp 322 is connected with the output end of the second telescopic actuating member 321. The second telescopic actuating member 321 can be a linear driving element such as an oil cylinder, a gas cylinder or a motor lead screw, which is used to drive the second clamp 322 to radially telescope along the second sleeve 3, so as to press or leave the hexagonal shaft 200.

[0127] All the first telescopic actuating members 231 and the second telescopic actuating members 321 can be centrally controlled by a control system.

[0128] In one embodiment, as shown in Figure 1 and Figure 13 , the support disc 1 is provided with a first docking mechanism 8 for docking with the round shaft 100.

[0129] The first docking mechanism 8 comprises a first docking disc 81 provided with a first magnet 82 and a first telescopic driving member 83 installed in the support disc 1 and used to drive the first docking disc 81 to axially telescope along the first sleeve 2.

[0130] The first docking disc 81 is coaxially arranged with the first sleeve 2, and the side of the support disc 1 facing the first sleeve 2 is provided with a first receiving groove 15. When the first telescopic driving member 83 is in the initial state, the first docking disc 81 is received in the first receiving groove 15.

[0131] In this embodiment, the middle part of the support disc 1 is provided with the first docking mechanism 8 for docking with the round shaft 100 / round disc 101. On the one hand, it can improve the axial stability of the round shaft 100 / round disc 101 in the first sleeve 2, and on the other hand, it is convenient to realize the coaxial arrangement of the round shaft 100 / round disc 101 and the first sleeve 2.

[0132] The first docking mechanism 8 comprises the first docking disc 81, the first magnet 82 and the first telescopic driving member 83. The first telescopic driving member 83 is installed in the support disc 1 and can be a linear driving element such as an oil cylinder, a gas cylinder or a motor lead screw. The output end of the first telescopic driving member 83 is coaxially arranged with the first sleeve 2, and the output end of the first telescopic driving member 83 can be extended into the first sleeve 2.

[0133] The first docking disc 81 is a magnetic metal disc, which is installed on the output end of the first telescopic driving member 83. The radius of the first docking disc 81 is smaller than that of the annular partition plate 22, so it can pass through the annular partition plate 22. The first magnet 82 is installed in the first docking disc 81 and is used to attract the metal round shaft 100 or the round disc 101.

[0134] The support disc 1 is provided with the first receiving groove 15 for receiving the retracted first docking disc 81.

[0135] When assembling the circular shaft 100 or the circular disc 101, the first docking disc 81 is first extended to the opening of the first sleeve 2 by the first telescopic driving member 83. The first docking disc 81 is then aligned with the circular shaft 100 or the circular disc 101 for adsorption, and then gradually retracted to drive the circular shaft 100 or the circular disc 101 into the first sleeve 2, or the first sleeve 2 is gradually sleeved on the circular shaft 100 or the circular disc 101. As needed, when the circular shaft 100 or the circular disc 101 is clamped, the first docking disc 81 is at least partially located outside the first receiving groove 15, and the first docking disc 81 maintains an adsorption connection with the circular shaft 100 or the circular disc 101.

[0136] When the positioning pin 102 is placed on the circular shaft 100 or the circular disk 101 , it is also necessary to ensure that the positioning pin 102 is inserted into the positioning hole 222 .

[0137] When it is necessary to separate the first docking plate 81 from the circular shaft 100 or the circular plate 101 , the first docking plate 81 is retracted into the first receiving groove 15 to separate the two.

[0138] In one embodiment, Figure 1 and Figure 13 As shown, the support plate 1 is provided with a second docking mechanism 9 for docking with the hexagonal shaft 200 .

[0139] The second docking mechanism 9 includes a second docking plate 91 having a second magnet 92 and a second telescopic driving member 93 installed in the supporting plate 1 and used for driving the second docking plate 91 to extend and retract along the axial direction of the second sleeve 3 .

[0140] The second docking plate 91 is coaxially arranged with the second sleeve 3 . The side of the support plate 1 facing the second sleeve 3 has a second receiving groove 16 . When the second telescopic driving member 93 is in the initial state, the second docking plate 91 is received in the second receiving groove 16 .

[0141] In this embodiment, a second docking mechanism 9 for docking with the hexagonal shaft 200 is provided in the middle of the support plate 1. On the one hand, it can improve the axial stability of the hexagonal shaft 200 in the second sleeve 3, and on the other hand, it facilitates the coaxial arrangement of the hexagonal shaft 200 and the second sleeve 3.

[0142] The second docking mechanism 9 includes a second docking plate 91, a second magnet 92, and a second telescopic drive member 93. The second telescopic drive member 93 is mounted within the support plate 1 and can be a linear drive element such as an oil cylinder, a pneumatic cylinder, or a motor screw. The output end of the second telescopic drive member 93 is coaxially arranged with the second sleeve 3 and can extend into the second sleeve 3.

[0143] The second docking plate 91 is a magnetic metal disc, which is mounted on the output end of the second telescopic driving member 93. The second magnet 92 is mounted in the second docking plate 91 for adsorbing the metal hexagonal shaft 200.

[0144] The supporting plate 1 has a second receiving groove 16 for receiving the retracted second docking plate 91 .

[0145] When assembling the hexagonal shaft 200, the second docking plate 91 is first extended to the opening of the second sleeve 3 via the second telescopic drive member 93. The second docking plate 91 is then aligned with the hexagonal shaft 200 and adsorbed thereon. The second docking plate 91 is then gradually retracted, driving the hexagonal shaft 200 into the second sleeve 3, or allowing the second sleeve 3 to be gradually sleeved onto the hexagonal shaft 200. As needed, when the hexagonal shaft 200 is clamped, the second docking plate 91 is at least partially located outside the second receiving groove 16, maintaining an adsorption connection with the hexagonal shaft 200.

[0146] When the second docking plate 91 and the hexagonal shaft 200 need to be separated, the second docking plate 91 is retracted into the second receiving groove 16 to separate the two.

[0147] In one embodiment, Figure 12 As shown, the side of the support plate 1 facing the first sleeve 2 has an annular first groove 11 , and the first guide mechanism 6 and the first drive mechanism 4 are respectively located in the first groove 11 .

[0148] The support plate 1 has an annular second groove 12 on a side facing the second sleeve 3 , and the second guide mechanism 7 and the second drive mechanism 5 are respectively located in the second groove 12 .

[0149] In this embodiment, the first groove 11 and the second groove 12 are arranged on both sides of the support plate 1 to accommodate the installation of the first guide mechanism 6, the first drive mechanism 4, the second guide mechanism 7 and the second drive mechanism 5, so as to avoid the first guide mechanism 6, the first drive mechanism 4, the second guide mechanism 7 and the second drive mechanism 5 protruding from the surface of the support plate 1 and affecting the actual operation.

[0150] In one embodiment, Figure 12 As shown, the first guide mechanism 6 includes at least one first guide rod 61 arranged along the radial direction of the support plate 1 , and the first sleeve module 2 a is slidably connected to the first guide rod 61 .

[0151] The second guide mechanism 7 includes at least one second guide rod 71 arranged along the radial direction of the support plate 1 , and the second sleeve module 3 a is slidably connected to the second guide rod 71 .

[0152] In this embodiment, the first guide mechanism 6 uses one or more first guide rods 61 to facilitate assembly with the first sleeve module 2a. A through hole can be provided on the first cylinder wall unit 211 of the first sleeve module 2a, and the first guide rods 61 are loosely matched with the through hole of the first cylinder wall unit 211.

[0153] The second guide mechanism 7 uses one or more second guide rods 71 ​​to facilitate assembly with the second sleeve module 3a. A through hole can be provided on the second cylinder wall unit 311 of the second sleeve module 3a, and the second guide rods 71 ​​are loosely matched with the through hole of the second cylinder wall unit 311.

[0154] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0155] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other variations can be made based on the principles of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A coupling tool, characterized in that: It includes a support disc, a first sleeve connected to one side of the support disc and used to connect with the round shaft, and a second sleeve connected to the other side of the support disc and used to connect with the hexagonal shaft; The first sleeve has a circular assembly hole, and the second sleeve has a hexagonal assembly hole; The first sleeve includes a plurality of first sleeve modules distributed along the circumference, the first sleeve modules are slidably connected to the support disk, each of the first sleeve modules is provided with a first telescopic pressing plate mechanism for pressing the circular shaft, a first guide mechanism for guiding the radial sliding of the first sleeve module is connected between each of the first sleeve modules and the support disk, and a first driving mechanism for driving the first sleeve module to slide back and forth radially is connected between each of the first sleeve modules and the support disk; The second sleeve includes a plurality of second sleeve modules distributed along the circumference, the second sleeve modules are slidably connected to the support disk, each second sleeve module is provided with a second telescopic pressing plate mechanism for pressing the hexagonal shaft, a second guide mechanism for guiding the radial sliding of the second sleeve module is connected between each second sleeve module and the support disk, and a second drive mechanism for driving the second sleeve module to slide back and forth radially is connected between each second sleeve module and the support disk; The first sleeve includes a first cylinder wall and an annular partition connected to the inner side of the first cylinder wall, and the annular partition is provided with a positioning hole for cooperating with the positioning pin of the circular shaft; The first cylinder wall comprises a plurality of first cylinder wall units arranged along the circumferential direction, and correspondingly, the annular partition comprises a plurality of partition units arranged along the circumferential direction; A first sleeve module is formed by connecting a partition plate unit and a first sleeve wall unit; Each of the first cylinder wall units is slidably connected to the support plate, and each of the partition units is provided with at least one positioning hole; Each of the first cylinder wall units is equipped with a set of the first telescopic pressing plate mechanism; The first guiding mechanism and the first driving mechanism are respectively connected between the first cylinder wall unit and the supporting disk.

2. The shaft coupling according to claim 1, characterized in that: The second sleeve includes a second cylinder wall, the second cylinder wall includes six second cylinder wall units arranged along the circumferential direction, and the inner surface of the second cylinder wall unit is the flat portion of the hexagonal assembly hole; Each of the second cylinder wall units is a second sleeve module; Each of the second cylinder wall units is equipped with a set of the second telescopic pressing plate mechanism; The second guiding mechanism and the second driving mechanism are respectively connected between the second cylinder wall unit and the supporting disk.

3. The coupling fixture according to claim 1 or 2, characterized in that: The first driving mechanism includes a first motor mounted on the edge of the support plate and a first screw connected to the first motor; The first screw extends along the radial direction of the support plate and is threadedly connected to the first sleeve module; The second driving mechanism includes a second motor mounted on the edge of the support plate and a second screw connected to the second motor; The second screw extends along the radial direction of the support disk and is threadedly connected to the second sleeve module.

4. The shaft coupling according to claim 3, characterized in that: The support plate is provided with a first limiting plate on the inner side of the first motor for limiting the position of the first sleeve module, and the first screw rod passes through the first limiting plate; The support plate is provided with a second limiting plate on the inner side of the second motor for limiting the second sleeve module, and the second screw rod passes through the second limiting plate.

5. The shaft coupling according to claim 1 or 2, characterized in that: The first telescopic pressure plate mechanism includes a first telescopic actuator and a first pressure plate connected to the first telescopic actuator; The first telescopic actuator is installed in the first sleeve module and is capable of telescoping along the radial direction of the first sleeve, and the first pressure plate is located inside the first sleeve module; The second telescopic pressure plate mechanism includes a second telescopic actuator and a second pressure plate connected to the second telescopic actuator; The second telescopic actuator is installed in the second sleeve module and is capable of telescoping along the radial direction of the second sleeve. The second pressure plate is located inside the second sleeve module.

6. The shaft coupling according to claim 1 or 2, characterized in that: The support plate is provided with a first docking mechanism for docking with the circular shaft; The first docking mechanism includes a first docking plate having a first magnet and a first telescopic driving member installed in the supporting plate and used to drive the first docking plate to telescope along the axial direction of the first sleeve; The first docking plate is coaxially arranged with the first sleeve. The side of the support plate facing the first sleeve has a first receiving groove. When the first telescopic driving member is in an initial state, the first docking plate is received in the first receiving groove.

7. The shaft coupling according to claim 1 or 2, characterized in that: The support plate is provided with a second docking mechanism for docking with the hexagonal shaft; The second docking mechanism includes a second docking plate having a second magnet and a second telescopic driving member installed in the supporting plate and used to drive the second docking plate to extend and retract along the axial direction of the second sleeve; The second docking plate is coaxially arranged with the second sleeve. The side of the support plate facing the second sleeve has a second receiving groove. When the second telescopic driving member is in an initial state, the second docking plate is received in the second receiving groove.

8. The shaft coupling according to claim 1 or 2, characterized in that: The support plate has a first annular groove on one side facing the first sleeve, and the first guide mechanism and the first drive mechanism are respectively located in the first groove; The support plate has a second annular groove on one side facing the second sleeve, and the second guide mechanism and the second drive mechanism are respectively located in the second groove.

9. The shaft coupling according to claim 1 or 2, characterized in that: The first guide mechanism includes at least one first guide rod arranged along the radial direction of the support plate, and the first sleeve module is slidably connected to the first guide rod; The second guide mechanism includes at least one second guide rod arranged along the radial direction of the support plate, and the second sleeve module is slidably connected to the second guide rod.

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