Assembly tool of linear displacement driver

Abstract

The utility model discloses an assembling tool of a linear displacement driver. The assembling tool comprises a base. One end of the clamping sleeve is connected to the base and is internally provided with an insertion hole; one end, far away from the base, of the clamping sleeve is provided with at least one clamping groove; the positioning sleeve sleeves the periphery of one end, far away from the base, of the clamping sleeve; one end of the positioning block is connected to the positioning sleeve, and the other end of the positioning block is inserted into the clamping groove and the open groove; one end of the axial positioning piece is detachably connected to the base, the other end of the axial positioning piece is exposed out of the clamping sleeve, and the shaft diameter is matched with a shaft hole in the middle of the shaft sleeve; the clamping ring is arranged at the end, away from the base, of the clamping sleeve, and the inner wall of the clamping ring makes contact with the outer walls of all the rolling bearings so that all the rolling bearings can abut against the outer wall of the axial positioning piece at the same time. The use process design is simulated, the structure is simple, the assembly efficiency is high, and the phenomena of abnormal sound, jamming and the like caused by poor assembly of the linear displacement driver are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical measuring equipment assembly and processing, and in particular relates to an assembly tool for a linear displacement driver. Background Art

[0002] Most of the linear displacement drivers on the current market use lead screw or screw drive, but the friction between the lead screw and the screw is relatively large, the processing accuracy is high, a large starting force and a large torque are required to start, and it is not suitable for high-speed transmission.

[0003] For light and high-speed transmission drives, most of the power is used to overcome friction, resulting in power waste, and the cost of overload protection is high. Limiting and self-locking can generally only be achieved through external mechanisms such as motor brakes, which can easily cause impact on the entire transmission system.

[0004] like Figure 1 and Figure 2 The figure shows a linear displacement driver in the prior art, which includes a sleeve 21 sleeved outside the drive shaft and three rolling bearings 22 arranged on the sleeve 21. One end of the sleeve 21 is also as shown in FIG. Figure 2The upper end shown in the figure is circumferentially spaced apart with three slots 212 extending axially but not penetrating the other end to form three bearing brackets 211 distributed at intervals. Each bearing bracket 211 is provided with a first mounting hole 213 inclined relative to the axis of the shaft sleeve 21. A hexagon socket countersunk bolt 23 is fixed in each first mounting hole 213. A rolling bearing 22 and a bearing washer 25 are sleeved on each hexagon socket countersunk bolt 23 in sequence. The bearing washer 25 is pressed between the rolling bearing 22 and the bearing bracket 211. Since the first mounting hole 213 is The rolling bearing 22 installed therein is tilted, and specifically, the shaft hole close to the middle can be adjusted to change the lead of the linear displacement driver (the distance the linear displacement driver moves for each rotation of the drive shaft). The outer peripheral wall of each bearing bracket 211 is also provided with a second mounting hole 214 extending along the axial direction of the bearing bracket 211 and concave in the radial direction. A rotation limiting column 24 is installed in each second mounting hole 214, and each rotation limiting column 24 radially protrudes from the outer wall of the corresponding bearing bracket 211. When in use, a locking sleeve (not shown, see the description in Chinese patent document No. CN209027461U) is also sleeved on the outer side of the linear displacement driver, and radially outwardly concave limiting grooves (not shown) are evenly spaced on the inner peripheral wall of the locking sleeve. The rotation limit column 24 can be abutted against the limit groove of the inner wall of the locking sleeve to achieve the three rolling bearings 22 and the surface of the drive shaft (not shown) to abut and hold or separate and loosen. When holding, the rotation of the drive shaft can realize the linear displacement driver to move along the axis of the drive shaft. The drive shaft adopts a linear optical axis. A support bearing (not shown) is also provided at the end of the bearing bracket 211 that is installed away from the rolling bearing 22 to improve the overall motion stability and prevent foreign matter from entering and causing mechanical failure. In the linear displacement driver of the above technical solution, the rolling bearing 22 rolls with the drive shaft throughout the whole process, the repeatability accuracy is high, and a linear optical axis is used instead of a screw rod, the friction is small, the power waste is small, and the wear will not affect the accuracy, and the processing cost is also low. However, for the assembly tooling of this type of linear displacement driver, the structure of the existing assembly tooling is mostly complex, and because the assembly process has always been difficult to measure, either the rolling bearing and the drive shaft cannot be effectively pressed together, resulting in torque loss; or they are too tight, causing the drive motor to be stuck, directly affecting its service life, and generating abnormal noise during use. Therefore, it is necessary to provide a new assembly tool for a linear displacement driver to solve the above technical problems. Utility Model Content

[0005] In view of at least one of the above-mentioned technical problems, the purpose of the utility model is to provide an assembly tool for a linear displacement driver.

[0006] The technical solution of the utility model is:

[0007] The utility model provides an assembly tool for a linear displacement driver, comprising:

[0008] Base;

[0009] A clamping sleeve, one end of which is connected to the base and has a socket extending axially therein for inserting the sleeve of the linear displacement driver, and at least one slot extending axially therein is formed at one end of the clamping sleeve away from the base;

[0010] A positioning sleeve, which is sleeved on the outer periphery of one end of the clamping sleeve away from the base;

[0011] At least one positioning block, one end of which is connected to the positioning sleeve and the other end of which is inserted into the slot and the slot between two adjacent bearings of the linear displacement driver;

[0012] An axial positioning member, one end of which is detachably connected to the base, and the other end of which passes through the clamping sleeve and is partially exposed outside the end of the clamping sleeve away from the base, and the shaft diameter of the axial positioning member matches the shaft hole in the middle of the sleeve;

[0013] A clamping ring is arranged on one end of the clamping sleeve and the positioning sleeve away from the base and surrounds all rolling bearings of the linear displacement drive inserted in the socket, and the inner wall of the clamping ring contacts the outer walls of all the rolling bearings so that the outer walls of all the rolling bearings abut against the outer wall of the axial positioning member at the same time.

[0014] Optionally, the number of the slots is equal to the number of the positioning blocks and corresponds to the number of the bearing supports of the linear displacement driver, the slots are spaced apart circumferentially, and each positioning block is correspondingly inserted into one slot and one slot.

[0015] Optionally, a support platform is provided at one end of the clamping sleeve close to the base for supporting the end of the sleeve not equipped with a rolling bearing, and a through hole is opened in the middle of the support platform and passes through the sleeve in the axial direction. The through hole is connected to the plug hole and the aperture of the through hole is smaller than the aperture of the plug hole. The axes of the through hole, the plug hole and the clamping sleeve are collinear, and the outer wall of the axial positioning member is interference fit with the inner wall of the through hole through a bushing sleeved thereon.

[0016] Optionally, the positioning block is T-shaped, including a block-shaped connecting block fixed to the positioning sleeve and a long plate-shaped clamping block clamped to the clamping groove and the slot.

[0017] Optionally, a positioning groove recessed along the axial direction of the positioning sleeve is formed on the positioning sleeve at a position corresponding to the positioning block, and the positioning block is fixed in the corresponding positioning groove by a first fastening bolt or is directly clamped in the corresponding positioning groove.

[0018] Optionally, the axial positioning member is threadedly connected to the base.

[0019] Optionally, the outer surface of the end of the axial positioning member away from the connection with the base is knurled.

[0020] Optionally, the clamping sleeve and the base are connected together by a second fastening bolt.

[0021] Compared with the prior art, the advantages of the utility model are:

[0022] In the assembly tooling of the linear displacement driver of the utility model, the clamping ring enables the outer walls of all rolling bearings to synchronously abut against the outer wall of the axial positioning member, thereby ensuring the normal use of the linear displacement driver and preventing some rolling bearings from being unable to effectively contact the axial driving member, thereby causing torque loss during use. The axial positioning member is designed to be consistent with the diameter of the drive shaft, simulating the use process during the assembly process, thereby preventing the rolling bearings from being too close and too tightly clamped, causing the motor to get stuck. The assembly tooling combines the use process of the linear displacement driver with a simulated use process design, has a simple structure, is easy to assemble, and has high assembly efficiency. Moreover, the rolling bearings in the assembled linear displacement driver will not be in too tight contact with the drive shaft, nor will they be unable to effectively contact each other, thereby solving the problem of abnormal noise and jamming caused by improper assembly of the linear displacement driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 It is a schematic diagram of the structure of the linear displacement driver (locking sleeve omitted);

[0025] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the linear displacement actuator;

[0026] Figure 3 It is a structural schematic diagram of an assembly tool for a linear displacement driver according to an embodiment of the utility model;

[0027] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the assembly tool;

[0028] Figure 5 for Figure 3A schematic diagram of a top view structure of an assembly tool;

[0029] Figure 6 for Figure 5 AA section structure schematic diagram of the assembly tooling;

[0030] Figure 7 This is a schematic structural diagram of a clamping sleeve of an assembly tool according to an embodiment of the utility model;

[0031] Figure 8 It is a structural schematic diagram of a positioning sleeve of an assembly tool according to an embodiment of the utility model;

[0032] Fig. 9 It is a structural schematic diagram of a positioning block of an assembly tooling of an embodiment of the utility model;

[0033] Fig.10 It is a structural schematic diagram of a base of an assembly tool according to an embodiment of the utility model;

[0034] Fig.11 It is a schematic diagram of the structure of the clamping ring in the assembly tooling of an embodiment of the utility model;

[0035] Fig.12 This is a schematic diagram of the three-dimensional structure of the linear displacement driver after the assembly tooling of the embodiment of the utility model is completed;

[0036] Fig.13 This is a top view of the linear displacement driver after the assembly tool of the embodiment of the utility model is assembled;

[0037] Fig.14 for Fig.13 Schematic diagram of the BB-section structure.

[0038] Wherein: 100, assembly tool; 11, base; 111, positioning hole; 112, third connecting hole; 12, clamping sleeve; 121, slot; 122, jack; 123, support platform; 124, through hole; 125, fourth connecting hole; 126, flange; 13, positioning sleeve; 131, positioning groove; 132, second connecting hole; 14, positioning block; 141, connecting block; 142, clamping block; 143, first connecting hole; 15, axial positioning piece; 16, clamping ring; 17, bushing; 18, first fastening bolt; 19, second fastening bolt; 200, linear displacement driver; 21, bushing; 211, bearing bracket; 212, slot; 213, first mounting hole; 214, second mounting hole; 22, rolling bearing; 23, hexagon socket countersunk bolt; 24, rotation limit column; 25, bearing washer. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0040] See also Figures 3 to 11 The assembly tool of a linear displacement driver of the embodiment of the utility model comprises a base 11, a clamping sleeve 12, a positioning sleeve 13, a positioning block 14, an axial positioning member 15 and a clamping ring 16. For the linear displacement driver 200, as shown in FIG. Figure 1 and 2 As shown, its structure can be found in the background technology description of the present utility model, and can also be found in the description of Chinese patent document No. CN209027461U, which will not be repeated here. The assembly tool 100 of the embodiment of the present utility model is used to assemble the linear displacement driver 200. Specifically, as Figure 6 and Figure 7 As shown, the clamping sleeve 12 is a generally cylindrical sleeve having a hollow center to form a socket 122 for inserting the sleeve 21 of the linear displacement driver 200 to be assembled, and its structure may be similar to that of the locking sleeve in the background art. It should be noted that when the assembly tool 100 of the embodiment of the utility model is used to assemble the linear displacement driver 200, the other end of the linear displacement driver 200 opposite to the end on which the rolling bearing 22 is installed is also as shown in FIG. Figure 1 The lower end shown is inserted into the insertion hole 122 first and when the sleeve 21 is inserted into the insertion hole 122, the rolling bearing 22 is exposed outside the insertion hole 122. Figure 4 The lower end shown is connected to the base 11 and the end of the clamping sleeve 12 away from the base 11 is also as shown in FIG. Figure 4 or Figure 7 The upper end shown is provided with at least one slot 121 extending along the axial direction of the clamping sleeve 12. The positioning sleeve 13 is sleeved on the outer periphery of the end of the clamping sleeve 12 away from the base 11, and its purpose is to install and fix the positioning block 14. One end of the positioning block 14 is connected to the positioning sleeve 13, and the other end is inserted into the slot 121 and the slot 212 between two adjacent bearing supports 211 of the linear displacement driver 200. The function of the positioning block 14 is to fix the bearing support 211 inserted into the socket 122 of the clamping sleeve 12, so as to facilitate the installation of the rolling bearing 22 on the bearing support 211. One end of the axial positioning piece 15 is also as shown Figure 4 The lower end shown is detachably connected to the base 11, and the other end is also Figure 4The upper end shown passes through the clamping sleeve 12 and partially exposes the end of the clamping sleeve 12 away from the base 11, that is, the upper end, so as to facilitate the subsequent removal after the linear displacement driver 200 is assembled. The shaft diameter of the axial positioning member 15 matches the shaft hole in the middle of the sleeve 21, that is, the shaft diameter of the drive shaft. Its purpose is to simulate the use state of the linear displacement driver 200 during the assembly process. The clamping ring 16 is arranged at the end of the clamping sleeve 12 and the positioning sleeve 13 away from the base 11, that is, the upper end, and surrounds all the rolling bearings 22 of the linear displacement driver 200 inserted in the insertion hole 122. The inner wall of the clamping ring 16 contacts the outer walls of all the rolling bearings 22 so that the outer walls of all the rolling bearings 22 can synchronously abut on the outer wall of the axial positioning member 15, and the lower end of the clamping ring 16 can directly abut on the upper end surface of the clamping sleeve 12. Thereby ensuring the normal use of the linear displacement driver 200, it will not cause some rolling bearings 22 to fail to effectively contact with the axial drive member, thereby causing the phenomenon of torque loss during use. The axial positioning member 15 is designed to be consistent with the diameter of the drive shaft, simulating the use process during the assembly process, thereby preventing the rolling bearing 22 from being too close and too tightly clamped, causing the motor to be stuck.

[0041] According to some preferred embodiments of the present invention, Figure 4 , Figure 5 and Figure 7 As shown, the number of the slots 121 and the number of the positioning blocks 14 are equal and correspond to the number of the bearing supports 211, that is, the number of the slots 121 and the positioning blocks 14 is multiple, and the multiple slots 121 are formed at the upper end of the clamping sleeve 12 at intervals along the circumferential direction. Exemplarily, the number of the bearing supports 211 in the figure is three, and correspondingly, the number of the slots 212 is also three. Therefore, the number of the slots 121 and the positioning blocks 14 is also three, that is, a positioning block 14 is inserted into each of the three slots 212 on the sleeve 21, which can improve the positioning effect and ensure that the sleeve 21 does not rotate during the assembly process. Preferably, the three slots 121 are evenly spaced at the upper end of the clamping sleeve 12, that is, the angle between each two adjacent slots 121 is 120°. Correspondingly, any two adjacent ones of the three bearing supports 211 also have an angle of 120°.

[0042] Because the diameter of the jack 122 matches the shaft sleeve 21, and the shaft diameter of the axial positioning member 15 matches the drive shaft, that is to say, the diameter of the jack 122 is larger than the axial positioning member 15. The axial positioning member 15 is only fixed to the base 11 at one end. Therefore, when the shaft sleeve 21 is not inserted into the jack 122 in the clamping sleeve 12, the axial positioning member 15 may be skewed, thereby affecting the assembly process. In the embodiment of the utility model, Figure 6 and Figure 7As shown, a support platform 123 is formed in one end of the clamping sleeve 12 close to the base 11. On the one hand, the support platform 123 can be used for support and positioning when the sleeve 21 is inserted, and on the other hand, it is convenient to form a through hole 124 in the middle thereof, the aperture of which is smaller than the insertion hole 122 and consistent with the axial diameter of the axial positioning member 15. The through hole 124 is connected to the insertion hole 122, and the axes of the through hole 124, the insertion hole 122 and the clamping sleeve 12 are collinear, so that the axial positioning member 15 can be kept in a vertical state. Preferably, the axial positioning member 15 and the through hole 124 are interference-fitted together through the bushing 17. As an alternative, the outer wall of the axial positioning member 15 can also be directly tightly fitted with the inner wall of the through hole 124. It should be noted that the matching section of the axial positioning member 15 and the bushing 17 is ground to ensure the design tolerance, so that there will be no shaking when the axial positioning member 15 is threadedly connected to the base 11.

[0043] like Fig. 9 As shown, the positioning block 14 is T-shaped. It includes a square-shaped connecting block 141 and a long plate-shaped clamping block 142. The wide side of the clamping block 142 is along the height direction of the connecting block 141. The connecting block 141 can be connected to the clamping sleeve 12 by fastening bolts or clamping or magnetic attraction. For example, Figure 4 and Figure 6 As shown, in the embodiment of the utility model, the positioning block 14 is connected to the positioning sleeve 13 through a first fastening bolt 18 (which can be a conventional hexagon socket countersunk bolt). Correspondingly, Fig. 9 As shown, a first connection hole 143 is formed on the connection block 141, and a corresponding second connection hole 132 is formed on the positioning sleeve 13. Preferably, as Figure 8 As shown, three positioning grooves 131 are spaced circumferentially on the positioning sleeve 13 and are recessed along the axial direction of the positioning sleeve 13. The connecting block 141 of the positioning block 14 is suitable for being inserted into the positioning groove 131, and the second connecting hole 132 is also provided on the bottom surface of the positioning groove 131. As an alternative embodiment, the first connecting hole 143 may not be provided on the connecting block 141, nor the second connecting hole 132 may be provided in the positioning groove 131, and the connecting block 141 of the positioning block 14 may be directly connected with the positioning groove 131 by snapping. As another alternative embodiment, the first connecting hole 143 is provided on the connecting block 141 of the positioning block 14, and the corresponding second connecting hole 132 is also provided on the positioning sleeve 13, but the positioning sleeve 13 does not have a positioning groove 131.

[0044] According to some preferred embodiments of the utility model, the axial positioning member 15 and the base 11 are connected together by threads, so as to facilitate the subsequent disassembly and removal of the axial positioning member 15 and then the assembled linear displacement driver 200. Further preferably, since the assembly tool 100 of the embodiment of the utility model combines the use process of the linear displacement driver 200 and simulates the use method, the axial positioning member 15 and the linear displacement driver 200 cannot be directly pulled out during the assembly process. In order to facilitate the subsequent removal of the axial positioning member 15, the outer surface of one end, that is, the upper end, of the axial positioning member 15 of the embodiment of the utility model adopts a knurling design (not shown). After the assembly is completed, the axial positioning member 15 is taken out by rotation. For the axial positioning member 15, it is an existing conventional pin shaft with a shaft diameter that matches the drive shaft.

[0045] The clamping sleeve 12 and the base 11 of the embodiment of the utility model are connected together by bolts, which is convenient for assembly and disassembly. Fig.10 As shown, a positioning hole 111 is provided in the middle of the base 11 for the axial positioning member 15 to be installed and connected, and three third connection holes 112 are provided at intervals around the outer periphery of the positioning hole 111. The third connection holes 112 are holes that pass through the upper and lower end surfaces of the base 11. Figure 6 As shown, one end of the clamping sleeve 12 connected to the base 11 is also provided with three fourth connection holes 125 at intervals along the circumferential direction, and the clamping sleeve 12 is connected and fixed to the base 11 by three second fastening bolts 19, such as hexagon socket countersunk bolts, which pass through the third connection hole 112 and the fourth connection hole 125 in sequence. The assembly tool of the embodiment of the utility model combines the use process of the linear displacement driver and simulates the use process design. It has a simple structure and is easy to assemble, with high assembly efficiency. Moreover, the rolling bearing and the drive shaft in the assembled linear displacement driver will not be in contact too tightly and will not have the phenomenon of ineffective contact, so as to solve the problem of abnormal noise and jamming caused by improper assembly of the linear displacement driver.

[0046] For the clamping ring 16, for example, Fig.11 As shown, the clamping ring 16 is an unclosed annular component with multiple axially extending slots alternately spaced at both ends. It can be a ring body formed by butting the two ends of a long strip of plate with two long sides staggered with slots extending in the width direction but not closed, and is quenched.

[0047] It should be noted that if Figure 6 As shown, the outer peripheral wall of the upper end of the clamping sleeve 12 has a flange 126 protruding radially outward, and the flange 126 is used to support the positioning sleeve 13.

[0048] The assembly tool 100 of the utility model embodiment fixes the clamping sleeve 12 and the axial positioning piece 15 on the base 11, inserts the shaft sleeve 21 into the socket 122 in the clamping sleeve 12, sleeves the positioning sleeve 13 on the outer periphery of the upper end of the clamping sleeve 12, and then installs the positioning block 14 on the positioning sleeve 13 but does not lock it. At the same time, the inner end of the positioning block 14 is inserted into the groove 121 on the clamping sleeve 12 and the slot 212 on the shaft sleeve 21 to fix the shaft sleeve 21 in the clamping sleeve 12 without rotating. Then, the rotation limit column 24, the rolling bearing 22, the bearing washer 25, and the hexagon socket countersunk bolt 23 are assembled one by one to the corresponding positions on the bearing bracket 211, and then the clamping ring 16 is used to make the outer walls of the three rolling bearings 22 contact the outer wall surface of the axial positioning piece 15, and finally the positioning block 14 is locked. The assembled structure is as shown in FIG. Figure 12 to Figure 14 As shown. The assembly of the linear displacement driver 200 is completed. When disassembling, first remove the clamping ring 16, then rotate the axial positioning member 15 so that the axial positioning member 15 is separated from the base 11 and then Fig.14 As shown, the bottom is taken out from the clamping sleeve 12 and the linear displacement driver 200, and the bushing 17 is retained in the clamping sleeve 12. Finally, the assembled linear displacement driver 200 in the insertion hole 122 is taken out.

[0049] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An assembly tool for a linear displacement actuator, characterized in that: include: Base; A clamping sleeve, one end of which is connected to the base and has a socket extending axially therein for inserting the sleeve of the linear displacement driver, and at least one slot extending axially therein is formed at one end of the clamping sleeve away from the base; A positioning sleeve, which is sleeved on the outer periphery of one end of the clamping sleeve away from the base; At least one positioning block, one end of which is connected to the positioning sleeve and the other end of which is inserted into the slot and the slot between two adjacent bearings of the linear displacement driver; An axial positioning member, one end of which is detachably connected to the base, and the other end of which passes through the clamping sleeve and is partially exposed outside the end of the clamping sleeve away from the base, and the shaft diameter of the axial positioning member matches the shaft hole in the middle of the sleeve; A clamping ring is arranged on one end of the clamping sleeve and the positioning sleeve away from the base and surrounds all rolling bearings of the linear displacement drive inserted in the socket, and the inner wall of the clamping ring contacts the outer walls of all the rolling bearings so that the outer walls of all the rolling bearings abut against the outer wall of the axial positioning member at the same time.

2. The assembly tool according to claim 1, characterized in that: The number of the slots is equal to the number of the positioning blocks and corresponds to the number of the bearing supports of the linear displacement driver. The slots are spaced apart along the circumferential direction, and each positioning block is correspondingly inserted into one slot and one slot.

3. The assembly tool according to claim 1, characterized in that: A support platform is provided at one end of the clamping sleeve close to the base for supporting the end of the sleeve not equipped with a rolling bearing, and a through hole is opened in the middle of the support platform and passes through the sleeve in the axial direction. The through hole is connected to the insertion hole and the aperture of the through hole is smaller than the aperture of the insertion hole. The axes of the through hole, the insertion hole and the clamping sleeve are collinear, and the outer wall of the axial positioning member is interference fit with the inner wall of the through hole through a bushing sleeved thereon.

4. The assembly tool according to claim 1, characterized in that: The positioning block is T-shaped and comprises a block-shaped connecting block fixed to the positioning sleeve and a long plate-shaped clamping block clamped to the clamping groove and the slot.

5. The assembly tool according to claim 1 or 4, characterized in that: A positioning groove recessed along the axial direction of the positioning sleeve is formed on the positioning sleeve at a position corresponding to the positioning block, and the positioning block is fixed in the corresponding positioning groove by a first fastening bolt or is directly clamped in the corresponding positioning groove.

6. The assembly tool according to claim 1, characterized in that: The axial positioning member is threadedly connected to the base.

7. The assembly tool according to claim 1 or 6, characterized in that: The outer surface of the end of the axial positioning member away from the base is knurled.

8. The assembly tool according to claim 1, characterized in that: The clamping sleeve and the base are connected together by a second fastening bolt.

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