Clamp convenient for assembling coupler

Abstract

The utility model belongs to the technical field of coupler assembling tools, and particularly relates to a clamp facilitating coupler assembling, which comprises a fixing frame, a rectangular groove is arranged on the front side face of the fixing frame, an electric guide rail is fixedly mounted in the rectangular groove, and sliding sleeves are symmetrically mounted on the electric guide rail in a sliding manner. An electric push rod is fixedly mounted on the front side wall of the sliding sleeve; the device is driven through the electric guide rail, the two sliding sleeves are used for driving the two sets of clamping mechanisms to clamp a coupler shell inwards, overall clamping is stable, long-time clamping can be kept, and the problem that in the prior art, part of clamps cannot keep clamping force on a coupler in the assembling process is solved; according to the device, the clamping plates can be quickly mounted and dismounted when coupler shells with different sizes and diameters are fixed, and the problems that a traditional clamp is inconvenient to replace and dismount and cannot meet the requirement for assembling couplings with different sizes and diameters in time are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the coupling assembly tool technical field especially, it relates to a clamp convenient to assemble coupling. BACKGROUND

[0002] Coupling is used to firmly connect the driving shaft and driven shaft in different mechanisms to rotate together and transmit motion and torque, which is often composed of two halves, connected by key or tight fit, etc. and fastened on the ends of two shafts, and then connected by screws, etc. Coupling can compensate for the deviation between two shafts due to manufacturing and installation inaccuracies, deformation during operation or thermal expansion, etc. and also has the functions of impact mitigation and vibration absorption.

[0003] In the field of coupling assembly, traditional clamps mostly adopt a pressing plate type fixing structure for clamping through a pressing plate around the coupling. However, when the outer wall of the coupling is thin (such as less than 5 mm) or the diameter is small (such as less than φ50 mm), the pressing plate is difficult to achieve vertical fixation, which can easily cause the axis of the coupling to deviate, directly affecting the assembly concentricity. For example, the coaxiality deviation of a certain type of clamping coupling during assembly was as high as 0.15 mm, far exceeding the tolerance requirement of 0.05 mm specified in GB / T 1184-1996.

[0004] For example, the Chinese patent with publication number CN221066058U discloses a coupling positioning and processing clamp, relating to the technical field of coupling processing, which comprises a clamp shell, a top plate fixedly connected in the middle of the clamp shell, a positioning shaft fixedly connected in the middle of the top plate, a fixed shaft fixedly connected to the inner wall of the clamp shell, the fixed shaft being fixedly connected to the bottom of the positioning shaft, a clamping plate provided at the top of the clamp shell, a rubber pad fixedly connected to the inner side of the clamping plate, anti-slip patterns provided on the inner side of the rubber pad, and an adjusting knob movably connected to the outer wall of the clamp shell. The clamp shell, through the common cooperation of the adjusting knob, clamping plate, top block, fixed shaft, gear, gear ring, connecting block, rotating plate, inclined sliding groove and sliding block, controls the movement range of the clamping plate through the adjusting knob, clamps and fixes the coupling with different diameters by adjusting the movement distance of the clamping plate, thereby facilitating the vertical fixation of couplings with different diameters and improving the processing precision.

[0005] The patent has some shortcomings in use, such as: the device is clamped through the iris mechanism to the shell of the shaft coupling, but the device provides driving force for the clamping mechanism by manually rotating the adjusting knob, and since the device lacks a self-locking mechanism, when the shaft coupling shell is subjected to a radial force, the force side clamping plate moves in the opposite direction under the action of the reaction force, which is specifically manifested as: the clamps of the device open outward, and the transmission gear and even the adjusting knob are reversed, that is, the device cannot continue to maintain a stable clamping state under the condition of clamping the shaft coupling shell, thereby reducing the clamping effect of the whole device; in addition, the device still clamps the shaft coupling shell through the flat plate clamping plate, and when the shell diameter is small, the clamping plate in the device may not be able to clamp the shaft coupling shell, and when different types of shaft coupling shells need to be clamped and fixed, the device cannot quickly and effectively replace the clamping plate. In view of this, a clamp for conveniently assembling a shaft coupling is provided. Content of the utility model

[0006] The utility model discloses a kind of clamps for conveniently assembling shaft coupling, to solve the problems raised in the above background art.

[0007] Therefore, the utility model provides a kind of clamp for conveniently assembling shaft coupling, comprising:

[0008] The front side of the fixed frame is provided with a rectangular slot, and an electric guide rail is fixedly installed in the rectangular slot.

[0009] Two groups of buffer assemblies are arranged between the corresponding fixed blocks and clamping plates on both sides, respectively, and are used to reduce excessive extrusion of the clamping plates on the shaft coupling shell, thereby protecting the shaft coupling shell.

[0010] Two groups of quick-release assemblies are arranged between the corresponding buffer assemblies and clamping plates, respectively, and are used to quickly disassemble and install the replacement clamping plates.

[0011] In the technical solution, the buffer assembly comprises:

[0012] A buffer block is arranged between the fixed block and the clamping plate, and the buffer block has an internal hollow structure.

[0013] In the technical solution, the quick-release assembly comprises:

[0014] The quick release block is fixedly installed at one end of the buffer rod outside the buffer block, a slot is formed in the side of the quick release block away from the buffer block, a plug is insertedly installed in the slot, and the end of the plug away from the quick release block is fixed to the outer wall of the clamping plate, the inner cavity of the slot is symmetrically formed with a sliding groove, a limiting block is slidingly installed in the sliding groove, limiting grooves are symmetrically formed in the side of the plug corresponding to the two limiting blocks, and the end of the limiting block extends into the slot through the sliding groove and extends into the slot.

[0015] In the technical scheme, the inner wall of the slot is symmetrically fixed with positioning columns, and the end of the plug 14 close to the buffer block is symmetrically formed with positioning holes matched with the positioning columns.

[0016] In the technical scheme, the outer wall of the quick release block is symmetrically formed with moving grooves communicated with the two sliding grooves, and a pull rod is slidingly installed in the moving groove and fixed to the corresponding limiting block at one end.

[0017] In the technical scheme, the clamping plate is in a C-shaped structure, an antiskid pad is bonded and fixed in the inner cavity of the clamping plate, a pressure plate is fixed between the antiskid pad and the clamping plate, a plurality of pressure sensors are fixedly installed on the back side of the pressure plate in a uniform distribution, a control panel is fixedly installed on the upper surface of the buffer block, and the control panel is electrically connected with the plurality of pressure sensors.

[0018] In the technical scheme, a connecting block is arranged between the fixed block and the buffer block, one end of the connecting block is rotatably installed on the fixed block, the other end of the connecting block is fixed to the side wall of the buffer block, a motor is fixedly installed on the side of the fixed block away from the buffer block, and the output shaft of the motor is coaxially connected with the connecting block.

[0019] The utility model discloses a beneficial effect is:

[0020] 1. The utility model discloses a clamp convenient to assemble shaft coupling, the device is driven through electric guide rail, utilizes two slide sleeves to drive two sets of clamping mechanisms to the shaft coupling shell and clamps inwards, and whole clamping is stable and can keep long -term clamping, solveed the problem that part of the clamp in the prior art cannot keep the clamping force of the shaft coupling in the assembly process.

[0021] 2. The utility model discloses a clamp convenient to assemble shaft coupling, through setting up quick release assembly, make the device can when fixing the shaft coupling shell of different size diameter, the quick installation and disconnection of clamping plate, solved the demand of traditional clamp inconvenient replacement and disconnection, cannot satisfy the assembly of different size diameter shaft coupling in time.

[0022] 3. The clamp for facilitating the assembly of the shaft coupling, by setting the buffer assembly, the pressure sensor and the control panel, the pressure sensor is used for monitoring the clamping force suffered by the shaft coupling shell in real time, and the data obtained after monitoring is transmitted to the control panel and displayed, so as to avoid that the extrusion force between the two clamping mechanisms is too large to damage the shaft coupling shell, and the excessive pressure is absorbed by the spring, so that the protectiveness of the shaft coupling shell is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2 It is an exploded schematic view of the clamping mechanism in the utility model;

[0025] Figure 3 It is a cross-sectional view schematic view of the buffer assembly in the utility model;

[0026] Figure 4 It is a cross-sectional view schematic view of the quick release assembly in the utility model;

[0027] Figure 5 It is an exploded schematic view of the clamping plate, the non-slip pad and the pressure plate in the utility model.

[0028] The marks in the drawing are:

[0029] 1, fixed frame; 2, electric guide rail; 3, sliding sleeve; 4, electric push rod; 5, fixed block; 6, buffer block; 7, quick release block; 8, clamping plate; 9, connecting block; 10, buffer plate; 11, buffer rod; 12, spring one; 13, insertion slot; 14, insertion block; 15, sliding groove; 16, limiting block; 17, limiting groove; 18, spring two; 19, positioning column; 20, positioning hole; 21, moving groove; 22, lever; 23, non-slip pad; 24, pressure plate; 25, pressure sensor; 26, control panel; 27, motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as limiting. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not intended to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, the specification and claims "and / or" means at least one of the connected objects, and the character " / ", generally indicates that the associated objects before and after are in a "or" relationship.

[0033] It should be noted that in the description of the present application, the orientation or position relationship indicated by the terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description. Without the opposite indication, these orientation terms do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer relative to the contour of each component.

[0034] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0035] Embodiment 1:

[0036] Please refer to Figure 1 - Figure 5 As shown in the figure, the embodiment provides a clamp for facilitating assembly of a shaft coupling, comprising:

[0037] The fixed frame 1 has a rectangular slot on the front side, and an electric guide rail 2 is fixedly installed in the rectangular slot. The electric guide rail 2 is symmetrically and slidably installed with a sliding sleeve 3. The front side wall of the sliding sleeve 3 is fixedly installed with an electric push rod 4. The telescopic rod end of the electric push rod 4 is fixedly connected with a fixed block 5. The inner side of the fixed block 5 is provided with a clamping plate 8.

[0038] Two groups of buffer assemblies are respectively arranged between the corresponding fixed block 5 and the clamping plate 8, and are used to reduce the excessive extrusion of the clamping plate 8 on the shaft coupling shell, thereby protecting the shaft coupling shell.

[0039] Two groups of quick release assemblies are respectively arranged between the corresponding buffer assemblies and the clamping plate 8, and are used to quickly disassemble and install the replaced clamping plate 8.

[0040] Wherein, the shaft coupling shell is placed between the two clamping plates 8, and the electric guide rail 2 is started. At this time, the two sliding sleeves 3 on the electric guide rail 2 are slowly displaced inward at the same time and drive the two groups of clamping mechanisms to move inward at the same time, thereby clamping the shaft coupling shell.

[0041] Embodiment 2:

[0042] The embodiment provides a clamp for facilitating assembly of a shaft coupling, in addition to the technical solutions of the above-mentioned embodiments, further comprising the following technical features, the buffer assembly comprises:

[0043] The buffer block 6 is arranged between the fixed block 5 and the clamping plate 8, the buffer block 6 has an internal hollow structure, a buffer plate 10 is slidingly arranged in the internal cavity of the buffer block 6, a buffer rod 11 is fixed to the side of the buffer plate 10 away from the fixed block 5, one end of the buffer rod 11 penetrates the inner wall of the buffer block 6 and extends to the outside, and a spring 12 is fixed to the other side of the buffer plate 10.

[0044] When the two groups of clamping plates 8 clamp the shaft coupling housing from the inside, the clamping plates 8 generate an outward reaction force due to the reaction force, at this time, the clamping plates 8 and the quick release block 7 are buffered by the buffer assembly, the process is as follows: the clamping plates 8 and the quick release block 7 are displaced outwardly under the action of the reaction force, at this time, the buffer rod 11 is extruded, the buffer rod 11 pushes the buffer plate 10 to slide outwardly in the internal cavity of the buffer block 6 and extrudes the spring 12, at this time, the spring 12 absorbs excessive pressure and plays a buffering role, effectively reducing the deformation of the shaft coupling housing caused by excessive pressure during clamping of the clamping plates 8 on the shaft coupling housing.

[0045] Embodiment 3:

[0046] The embodiment provides a clamp convenient for assembling a shaft coupling, in addition to the technical solutions of the above-mentioned embodiments, further has the following technical features, the quick release assembly comprises:

[0047] The quick release block 7 is fixedly arranged at one end of the buffer rod 11 located outside the buffer block 6, a slot 13 is arranged on the side of the quick release block 7 away from the buffer block 6, a plug 14 is insertedly arranged in the slot 13, one end of the plug 14 away from the quick release block 7 is fixed to the outer wall of the clamping plate 8, the internal cavity of the slot 13 is symmetrically provided with a sliding groove 15, a limiting block 16 is slidingly arranged in the sliding groove 15, a limiting groove 17 is symmetrically arranged on one side of the plug 14 corresponding to the two limiting blocks 16, one end of the limiting block 16 penetrates the sliding groove 15 and extends into the slot 13, one end of the limiting block 16 is insertedly matched with the corresponding limiting groove 17, and a spring 18 is arranged on the side of the limiting block 16 away from the slot 13.

[0048] In the embodiment, the outer wall of the quick release block 7 is symmetrically provided with a moving groove 21 communicating with the two sliding grooves 15, a lever 22 is slidingly arranged in the moving groove 21, and one end of the lever 22 is fixed to the corresponding limiting block 16.

[0049] When the clamping plate 8 needs to be replaced and installed quickly when clamping coupler housings with different inner diameters, the quick release assembly is used to achieve the purpose of saving replacement time and improving work efficiency; the specific implementation is as follows: when disassembling, the two push rods 22 are pushed away from the center end by hand, so that the two push rods 22 drive the corresponding limiting blocks 16 to displace outward, at this time the two limiting blocks 16 are withdrawn from the inner cavity of the corresponding limiting groove 17, and the limiting blocks 16 lose the constraint on the plug block 14, then the operator pulls the clamping plate 8 away from the quick release block 7, and the clamping plate 8 can be quickly removed from the quick release block 7, when the operator releases the push rod 22, the limiting end of the two limiting blocks 16 falls into the insertion slot 13 under the action of the second spring 18; when assembling, the principle is the same as above, only the plug block 14 on the new size clamping plate 8 is inserted into the inner cavity of the insertion slot 13, when the plug block 14 enters the insertion slot 13, the head end of the plug block 14 extrudes the limiting end of the limiting block 16, and the limiting block 16 temporarily slides into the inner cavity of the sliding groove 15 until the plug block 14 is completely inserted into the insertion slot 13, at this time the limiting block 16 is located at the position of the corresponding limiting groove 17, and under the elastic action of the second spring 18, the limiting block 16 falls into the limiting groove 17 and constrains the plug block 14, thereby achieving quick installation. Figure 4

[0050] By setting the quick release assembly, the plug block 14 and the insertion slot 13, the limiting block 16 and the limiting groove 17, and the second spring 18 are matched, the plug block 14 is limited by the limiting block 16, the clamping plate 8 is quickly fixed, the limiting block 16 is actuated by the push rod 22, the limiting block 16 loses the constraint on the plug block 14, the clamping plate 8 is quickly disassembled, the clamping plate 8 can be quickly installed and disassembled when the device is used to fix coupler housings with different sizes, and the problem of inconvenient replacement and disassembly of traditional clamps and the inability to timely meet the demand for assembling couplers with different sizes is solved.

[0051] Embodiment 4:

[0052] The embodiment provides a clamp convenient for assembling a coupler, in addition to the technical solutions of the above-mentioned embodiments, further comprising the following technical features: the inner wall of the insertion slot 13 is symmetrically fixed with a positioning column 19, and the end of the plug block 14 close to the buffer block 6 is symmetrically provided with a positioning hole 20 matched with the positioning column 19, and the positioning column 19 and the positioning hole 20 are inserted and matched.

[0053] When the plug block 14 is inserted into the insertion slot 13, the two positioning columns 19 are matched with the corresponding positioning holes 20, and the positioning column 19 is inserted into the inner cavity of the positioning hole 20.

[0054] ​By setting the positioning column 19 and the positioning hole 20, the possibility of shaking of the insertion block 14 in the inner cavity of the insertion slot 13 is reduced, and the accuracy of clamping of the device is effectively improved, and the assembly effect is improved.

[0055] Embodiment 5:

[0056] The embodiment provides a clamp convenient for assembling a shaft coupling, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the clamping plate 8 is C-shaped structure, the inner cavity of the clamping plate 8 is adhesively fixed with the anti-skid pad 23, the anti-skid pad 23 and the clamping plate 8 are fixed with the pressure plate 24, the back side of the pressure plate 24 is fixedly installed with a plurality of pressure sensors 25 which are uniformly distributed, the upper surface of the buffer block 6 is fixedly installed with the control panel 26, and the control panel 26 is electrically connected with the plurality of pressure sensors 25.

[0057] Wherein, the anti-skid pad 23 has elasticity, one side of the anti-skid pad 23 is provided with a plurality of evenly distributed semispherical protrusions, so as to increase the friction between the shaft coupling shell, it is worth mentioning that the four pressure sensors 25 and the control panel 26 in the application are connected by four bridge type wiring method, which is prior art, and will not be described here, when the anti-skid pad 23 is extruded by the shaft coupling shell, the pressure plate 24 can be transmitted, at this time, the four pressure sensors 25 can transmit the pressure data to the control panel 26, and display the pressure data to the operator through the control panel 26, the operator can ensure that the shaft coupling shell is in a suitable and stable clamping interval by observing the control panel 26.

[0058] Wherein, by setting the pressure sensor 25 and the control panel 26, the clamping force of the shaft coupling shell is monitored in real time by the pressure sensor 25, and the data obtained after monitoring is transmitted to the control panel 26 and displayed, so as to avoid that the shaft coupling shell is damaged by the extrusion force between the two clamping mechanisms.

[0059] Embodiment 6:

[0060] The embodiment provides a clamp convenient for assembling a shaft coupling, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the connecting block 9 is arranged between the fixed block 5 and the buffer block 6, one end of the connecting block 9 is rotatably installed on the fixed block 5, the other end of the connecting block 9 is fixed with the side wall of the buffer block 6, the side, away from the buffer block 6, of the fixed block 5 is fixedly installed with the motor 27, and the output shaft of the motor 27 is coaxially connected with the connecting block 9.

[0061] When the shell to be clamped needs to be rotated to facilitate the assembly of the coupling at a more convenient angle, the motor 27 is started, the output shaft of the motor 27 rotates and drives the connecting block 9 to rotate, at this time the buffer block 6, the buffer rod 11, the quick release block 7, the plug block 14 and the clamping plate 8 rotate with the connecting block 9 respectively, thereby realizing angle adjustment. It is worth noting that the motor 27 in the present application is a stepper motor, which has precise step angle control capability and is suitable for application scenarios that require slight rotation. This is prior art, and the specific model can be selected according to the actual size and power requirements of the device. The present application will not be described in more detail.

[0062] By setting the motor 27, the motor 27 is driven, saving labor consumption.

[0063] The embodiments of the present application are described above in combination with the drawings. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific embodiments, which are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A fixture for facilitating assembly of a shaft coupling, comprising: Include: The front side of the fixed frame (1) is provided with a rectangular slot, and the electric guide rail (2) is fixedly installed in the rectangular slot. The electric guide rail (2) is symmetrically and slidably installed with a sliding sleeve (3). The front side wall of the sliding sleeve (3) is fixedly installed with an electric push rod (4). The telescopic rod end of the electric push rod (4) is fixedly connected with a fixed block (5). The inner side of the fixed block (5) is provided with a clamping plate (8). Two groups of buffer assemblies are arranged between the corresponding fixed block (5) and clamping plate (8) respectively, and are used to reduce the excessive extrusion of the clamping plate (8) on the shaft coupling shell, so as to protect the shaft coupling shell. Two groups of quick release assemblies are arranged between the corresponding buffer assembly and clamping plate (8) respectively, and are used for quick disassembly and installation of the replacement clamping plate (8).

2. A fixture for facilitating assembly of a shaft coupling as defined in claim 1, wherein, The buffer assembly comprises: The buffer block (6) is arranged between the fixed block (5) and the clamping plate (8). The buffer block (6) is internally hollow. The inner cavity of the buffer block (6) is slidably installed with a buffer plate (10). The side, away from the fixed block (5), of the buffer plate (10) is fixedly provided with a buffer rod (11). One end of the buffer rod (11) penetrates the inner wall of the buffer block (6) and extends to the outside. The other side of the buffer plate (10) is fixedly provided with a spring (12).

3. A fixture for facilitating assembly of a shaft coupling as defined in claim 2 wherein, The quick release assembly comprises: The quick release block (7) is fixedly installed at one end of the buffer rod (11) outside the buffer block (6). The side, away from the buffer block (6), of the quick release block (7) is provided with a slot (13). The slot (13) is insertedly installed with an insertion block (14). The end, away from the quick release block (7), of the insertion block (14) is fixedly connected with the outer wall of the clamping plate (8). The inner cavity of the slot (13) is symmetrically provided with a sliding groove (15). The sliding groove (15) is slidably installed with a limiting block (16). The side, corresponding to the two limiting blocks (16), of the insertion block (14) is symmetrically provided with a limiting slot (17). One end of the limiting block (16) penetrates the sliding groove (15) and extends into the slot (13). One end of the limiting block (16) is insertedly matched with the corresponding limiting slot (17). The side, away from the slot (13), of the limiting block (16) is provided with a spring (18).

4. A fixture for facilitating assembly of a shaft coupling as defined in claim 3 wherein, The inner wall of the slot (13) is symmetrically fixedly provided with a positioning column (19). The end, close to the buffer block (6), of the insertion block (14) is symmetrically provided with a positioning hole (20) matched with the positioning column (19). The positioning column (19) and the positioning hole (20) are insertedly matched.

5. A fixture for facilitating assembly of a shaft coupling as defined in claim 3 wherein, The outer wall of the quick release block (7) is symmetrically provided with a moving slot (21) communicated with the two sliding grooves (15). The moving slot (21) is slidably installed with a push rod (22). One end of the push rod (22) is fixedly connected with the corresponding limiting block (16).

6. A fixture for facilitating assembly of a shaft coupling as defined in claim 2 wherein, The clamping plate (8) is in C-shaped structure, the inner cavity of the clamping plate (8) is fixedly bonded with the antiskid pad (23), the antiskid pad (23) and the clamping plate (8) are fixedly connected with the pressure plate (24), the back side of the pressure plate (24) is fixedly installed with a plurality of pressure sensors (25) which are uniformly distributed, the upper surface of the buffer block (6) is fixedly installed with the control panel (26), and the control panel (26) is electrically connected with the plurality of pressure sensors (25).

7. A fixture for facilitating assembly of a shaft coupling as defined in claim 2 wherein, The connecting block (9) is arranged between the fixed block (5) and the buffer block (6), one end of the connecting block (9) is rotatably installed on the fixed block (5), the other end of the connecting block (9) is fixedly connected with the side wall of the buffer block (6), the side, away from the buffer block (6), of the fixed block (5) is fixedly installed with the motor (27), and the output shaft of the motor (27) is coaxially connected with the connecting block (9).

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