A mounting device and a mounting method for a dual bearing encoder

Abstract

The application provides a mounting device and a mounting method of a double-bearing encoder. The mounting device of the double-bearing encoder comprises a base, a press-fitting assembly and a pressure-bearing assembly mounted on the base. The pressure-bearing assembly comprises a shaft top piece fixed to the base and provided with a central hole in an end face, and a support ring block sleeved on the end of the shaft top piece and capable of being in a pre-press-fitting position or a press-fitting position. An encoder shaft of the double-bearing encoder is inserted into the central hole and the upper end of the encoder shaft penetrates through the support ring block. When the support ring block is in the pre-press-fitting position, the upper end face of the support ring block is higher than the surface where the shaft shoulder of the encoder shaft is located. When the support ring block is in the press-fitting position, the upper end face of the support ring block is lower than the surface where the shaft shoulder of the encoder shaft is located. By moving the support ring block between the pre-press-fitting position and the press-fitting position, the damage of the bearing during the mounting process is reduced, the mounting steps are simplified, and the mounting efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly, and in particular to a mounting device and method for a dual-axis encoder. Background Technology

[0002] The working principle of an encoder is to measure by rotating the shaft being tested, which in turn drives the encoder shaft to rotate. Bearings are a crucial component in magnetic encoders; their proper installation determines the smoothness of the encoder shaft rotation and thus affects the encoder's mechanical performance. The traditional method for installing bearings is to first place the bearing on the mounting hole in the encoder housing and then hammer it in using a rubber or wooden mallet with a sleeve. For dual-bearing magnetic encoders, one bearing must first be hammered in using a rubber or wooden mallet with a sleeve. Then, the housing is rotated 180°, and the other bearing is installed using the same method. Finally, the shaft is aligned with the inner ring of the bearing and hammered in.

[0003] In traditional dual-axis encoder installation processes, manual alignment of the bearing outer ring with the housing mounting hole and the bearing inner ring with the shaft is required. Excessive misalignment can easily cause the bearing to jam. Furthermore, using a hammer to strike the bearing can easily damage it, and the striking point can be misaligned, further causing the bearing to jam and preventing proper installation. Additionally, for structures with dual bearings distributed at both ends of the housing or shaft, the housing or shaft needs to be flipped, making the process quite cumbersome.

[0004] It is evident that existing technologies suffer from problems such as large installation errors between the bearings and encoder shaft of magnetic encoders and cumbersome installation procedures. Summary of the Invention

[0005] This invention provides a mounting device and method for a dual-axis encoder, which solves the problems of large installation errors between the bearings and encoder shafts of magnetic encoders and cumbersome installation steps in the prior art.

[0006] This invention provides a bearing encoder mounting device, including a base and a pressing assembly and a pressure-bearing assembly mounted on the base;

[0007] The pressure-bearing assembly includes a shaft top piece with its bottom fixed to the base and a center hole on its end face, and a support ring block sleeved on the end of the shaft top piece and capable of being in a pre-pressed or press-fit position. The encoder shaft of the dual-axis encoder is inserted into the center hole and its upper end passes through the support ring block. When the support ring block is in the pre-pressed position, the upper end face of the support ring block is higher than the shoulder face of the encoder shaft. When the support ring block is in the press-fit position, the upper end face of the support ring block is lower than the shoulder face of the encoder shaft. The press-fit assembly is used to press the bearing to be installed onto the encoder shaft.

[0008] This invention, by moving the support ring block between the pre-pressing and pressing positions, actively changes the stress surface of the pressure-bearing components during installation. This ensures uniform stress on the bearing during installation, reducing the risk of damage. Furthermore, by adjusting the stress surface, the bearing installation eliminates the need to press individual components, avoiding the impact of machining tolerances on installation accuracy and improving installation precision. In addition, the bearing encoder of this invention avoids repeatedly flipping the test shaft during bearing installation, simplifying the installation process and improving efficiency.

[0009] Optionally, during press fitting, the bearing to be installed is clamped in the press fitting assembly. When the support ring block is in the pre-press fitting position, the press fitting assembly is pressed down so that the bearing to be installed abuts against the upper end face of the support ring block, thereby fitting the bearing to be installed onto the shaft section located on the upper side of the shaft shoulder in the encoder shaft, thus completing the pre-press fitting. When the support ring block is in the press fitting position, the press fitting assembly is pressed down further so that the bearing to be installed abuts against the shaft shoulder of the encoder shaft, thus completing the press fitting.

[0010] Optionally, the pressure-bearing assembly also includes multiple stepped shafts, which are mounted on the base and arranged circumferentially along the support ring block;

[0011] The support ring block includes a sleeve structure and an extension connected to the outer wall of the sleeve structure. The sleeve structure is sleeved on the end of the shaft top member. The extension has multiple through holes, each of which extends circumferentially along the support ring block. Each of the multiple stepped shafts passes through a corresponding through hole and can slide between a first position and a second position along the inner wall of the through hole.

[0012] When the stepped shaft is in the first position, the support ring block is in the pre-pressed position;

[0013] When the stepped shaft is in the second position, the support ring block is in the press-fit position.

[0014] Optionally, the extension has multiple countersunk holes on the side facing the base, each countersunk hole communicating with a corresponding through hole;

[0015] When the stepped shaft slides into the corresponding countersunk hole, the stepped shaft is limited to the second position so that the support ring block is in the press-fit position.

[0016] Optionally, the support ring block may also include at least one handle, which is disposed on the circumferential sidewall of the extension.

[0017] Optionally, the press-fit assembly includes a clamping part; the clamping part includes a mounting bushing, a sliding sleeve, a magnetic chuck, and a guide connector;

[0018] A magnetic suction element is located on the inner wall of the sliding sleeve to attract the bearing to be installed between the inner wall of the sliding sleeve and the mounting sleeve. The sliding sleeve is fitted onto the outer wall of the mounting sleeve through a guide connector. The outer wall of the mounting sleeve has a protrusion with a mounting hole. One end of the guide connector is fixed to the sliding sleeve, and the other end passes through the mounting hole and can slide along the inner wall of the mounting hole, thereby driving the sliding sleeve to slide along the outer wall of the mounting sleeve.

[0019] Optionally, the press-fit assembly also includes a press-fit drive unit connected to the clamping unit to drive the clamping unit to fit the bearing onto the encoder shaft and perform press-fitting.

[0020] Optionally, it also includes a base plate, locking components, and base plate clamping components; the pressure-bearing assembly is mounted on the base via the base plate;

[0021] The base plate has a T-shaped structure and multiple strip holes. Parts of the multiple strip holes extend along a first direction, and the remaining parts of the multiple strip holes extend along a second direction.

[0022] The locking element is inserted into multiple slots and can slide along the inner wall of the slots. The base plate clamping element is connected to the locking element and can engage with the edge of the base when the locking element is in the locked position to fix the pressure-bearing component to the base.

[0023] Optionally, the base plate is provided with multiple columns, which are arranged circumferentially along the support ring block, and the housing of the dual-axis encoder is mounted on the multiple columns.

[0024] The present invention also provides a method for installing a bearing encoder, which uses the mounting device for a dual-axis encoder described in the above embodiments and possible implementations, including:

[0025] Insert the encoder shaft into the center hole of the shaft top piece and press the end face of the encoder shaft into close contact with the bottom surface of the center hole.

[0026] The first bearing of the dual-axis encoder is attached between the inner wall of the sliding sleeve of the press-fit assembly and the mounting sleeve.

[0027] Adjust the support ring block to the pre-pressed position;

[0028] The first bearing is pressed against the upper end face of the support ring block by driving the press assembly and then released.

[0029] After the housing of the dual-axis encoder is installed, a bushing is set in the space formed between the first bearing and the housing.

[0030] The second bearing of the dual-axis encoder is attached between the inner wall of the sliding sleeve of the press-fit assembly and the mounting sleeve.

[0031] The pre-installation is completed by driving the press-fit assembly to fix the positions of the second bearing relative to the bushing, the first bearing, and the housing of the dual-axis encoder.

[0032] Adjust the support ring block to the press-fit position;

[0033] The press assembly is driven again to press the first bearing, bushing, second bearing and housing together, which are already fixed in relative position, so that the lower end face of the first bearing abuts and presses against the shoulder of the encoder shaft to complete the installation.

[0034] The installation method of the dual-axis encoder provided by this invention does not require repeated flipping of the encoder shaft, the installation steps are simple, the installation efficiency is high, and the installation accuracy is high. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the mounting device for the dual-axis encoder in an embodiment of the present invention;

[0036] Figure 2 This is a partial structural schematic diagram of the mounting device for the dual-axis encoder in an embodiment of the present invention;

[0037] Figure 3 This is a partial cross-sectional view of the mounting device for the dual-axis encoder in an embodiment of the present invention.

[0038] Figure 4 This is a partial cross-sectional view of the bearing mounted on the encoder shaft in an embodiment of the present invention, wherein the support ring block is in the pre-pressed position;

[0039] Figure 5 This is a partial cross-sectional view of the bearing mounted on the encoder shaft in an embodiment of the present invention, wherein the support ring block is in a press-fit position;

[0040] Figure 6 This is a three-dimensional structural diagram of the clamping part in the mounting device of the dual-axis encoder in an embodiment of the present invention;

[0041] Figure 7 This is a cross-sectional view of the clamping part in the mounting device for the dual-axis encoder in an embodiment of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1: Mounting device for dual-axis encoders;

[0044] 11: Pressure-bearing component; 111: Shaft top part; 1110: Center hole; 112: Support ring block; 1120: Upper end face; 1121: Sleeve structure; 1122: Extension; 11220: Through hole; 113: Stepped shaft; 114: Handle;

[0045] 12: Press-fit assembly; 121: Clamping part; 1211: Mounting bushing; 1212: Sliding sleeve; 1213: Magnetic suction element; 1214: Guide connector; 1215: Protrusion; 122: Press-fit drive part;

[0046] 13: Base; 14: Base plate; 141: Strip hole; 144: Base plate clamping piece; 15: Column;

[0047] 21: Encoder shaft; 210: Shaft shoulder;

[0048] 31: First bearing; 32: Second bearing; 33: Housing; 34: Bushing. Detailed Implementation

[0049] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0050] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0052] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0053] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0054] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0055] This invention provides a mounting device 1 for a dual-axis encoder, please refer to [link / reference]. Figure 1 It includes a base 13, a pressing assembly 12 (including a clamping part 121 and a pressing drive part 122) and a pressure bearing assembly 11; both the pressing assembly 12 and the pressure bearing assembly 11 are mounted on the base 13.

[0056] For further details, please see Figures 2-5 The pressure-bearing assembly 11 includes a shaft top member 111 and a support ring block 112. The bottom of the shaft top member 111 is mounted on the base 13. The shaft top member 111 has a center hole 1110 for accommodating the encoder shaft (e.g., Figure 3 As shown), encoder shaft 21 (as shown) Figure 4 and Figure 5 (As shown) After being inserted and fixed in the central hole, its upper end protrudes through the support ring block 112;

[0057] Please see Figure 4 and Figure 5 and combined Figure 2 and Figure 3 Understandably, the support ring block 112 is sleeved on the end of the shaft top member 111 and can move along the axial direction of the shaft top member 111 between the pre-pressing position and the press-fitting position under the action of external force; the upper end face 1120 of the support ring block 112 (as shown) Figure 4 and Figure 5 As shown, a bearing (e.g., the first bearing 31 located below) is used to support a dual-axis encoder. When the support ring block 112 is in the pre-pressed position, the shoulder 210 of the encoder shaft inserted in the center hole is located below the upper end face 1120 of the support ring block 112. When the support ring block 112 is in the press-fit position, the shoulder 210 is located above the upper end face 1120 of the support ring block 112.

[0058] For further details, please see Figure 4 and Figure 5 and combined Figure 1 It is understood that the bearing can be clamped in the press assembly 12 (e.g., clamping part 121) and can abut against the upper end face 1120 of the support ring block 112 under the action of external force (e.g., under the drive of the press drive part 122) so that when the support ring block 112 is in the pre-press position, the bearing is fitted into the shaft segment of the encoder shaft 21 located on the upper side of the shaft shoulder 210, and when the support ring block is in the press position, the bearing is fitted into the position of the shaft shoulder 210 of the encoder shaft 21.

[0059] This invention, by moving the support ring 112 between the pre-pressing position and the pressing position, can actively change the force-bearing surface of the pressure-bearing component during installation, ensuring uniform stress on the bearing and reducing damage during installation. Furthermore, by adjusting the force-bearing surface, the bearing installation does not require pressing any specific component, avoiding the impact of machining tolerances on installation accuracy and improving installation precision. In addition, the dual-axis encoder installation device 1 of this invention avoids repeatedly flipping the encoder shaft during bearing installation, simplifying the installation steps and improving installation efficiency.

[0060] Among them, such as Figure 1 As shown, the press-fit drive unit 122 is connected to the clamping unit 121 to drive the clamping unit 121 to fit the bearing onto the encoder shaft 21 and perform press-fitting. The form of the press-fit drive unit 122 is not limited. For example, it can be a manual press rod structure. In other alternative embodiments, it can also be a motor or cylinder drive device.

[0061] For further details, please see Figure 2 and Figure 3 The pressure-bearing component 11 also includes a plurality of stepped shafts 113, which are mounted on the base 13 and arranged circumferentially along the support ring block 112;

[0062] The support ring block 112 includes a sleeve structure 1121 and an extension 1122 connected to the outer wall of the sleeve structure 1121. The sleeve structure 1121 is sleeved on the end of the shaft top member 111. The extension 1122 is provided with a plurality of through holes 11220. Each through hole 11220 extends circumferentially along the support ring block 112. Each of the plurality of stepped shafts 113 passes through a corresponding through hole 11220 and can slide between a first position and a second position along the inner wall of the through hole 11220.

[0063] When the stepped shaft 113 is in the first position, the support ring block 112 is in the pre-pressed position;

[0064] When the stepped shaft 113 is in the second position, the support ring block 112 is in the press-fit position.

[0065] The number of stepped shafts 113 is unlimited, for example, there can be 2, 3 or 5, etc. The through hole 11220 can be, for example, an arc-shaped through hole. The width of the arc-shaped through hole is slightly larger than the diameter of the small end of the stepped shaft 113 and smaller than the diameter of the large end of the stepped shaft. Or it can be understood that the steps of the stepped shaft 113 are engaged with the arc-shaped through hole.

[0066] Furthermore, the extension 1122 has a plurality of countersunk holes (not shown in the figure) on the side facing the base, each countersunk hole being connected to a corresponding through hole 11220 among the plurality of through holes 11220;

[0067] When the stepped shaft 113 slides into the corresponding countersunk hole, the stepped shaft 113 is limited to the second position so that the support ring block 112 is in the press-fit position.

[0068] Specifically, the diameter of the countersunk hole is greater than or equal to the diameter of the large end of the stepped shaft 113. The small end of the stepped shaft is inserted into the arc-shaped through hole and can rotate along the arc-shaped through hole. When the support ring block 112 is rotated by the handle 114, the small end of the stepped shaft 113 moves along the arc-shaped through hole. When it moves to the countersunk hole position, the support ring block 112 moves along the shaft top member 111 from the pre-pressed position (e.g., Figure 4 (As shown) Slide down to the press-fit position (as shown) Figure 5 As shown), until the stepped surface of the stepped shaft 113 contacts and locks into place with the bottom of the countersunk hole, at which point the stepped shaft 113 is in the second position.

[0069] As can be seen, in this embodiment of the invention, the sliding fit between the stepped shaft 113 and the through hole 11220 allows the support ring block 112 to rotate around the shaft top member 111. When the support ring block 112 slides down to the press-fit position (e.g. Figure 5 When the force-bearing surface is adjusted, except for the contact surface between the shaft end face and the bottom surface of the center hole 1110 in the initial state, the contact surface between the bearing end face and the upper end face of the support ring block 112 becomes the contact surface between the bearing end face and the surface where the shaft shoulder is located. The prerequisite for adjusting the force-bearing surface is that the distance between the shaft end face and the surface where the shaft shoulder is located is slightly smaller than the distance between the bottom surface of the center hole 1110 and the upper end face 1120 of the support ring block 112 when it is in the pre-pressed position, generally not exceeding 2mm. Adjusting the force-bearing surface facilitates the complete installation of the shaft and bearing. In existing technologies, taking manual installation as an example, after installing the shaft, bearing, bushing, and housing in sequence, the shaft may dislodge due to force during bearing installation, requiring further pressing to reposition it. However, pressing the shaft alone may dislodge the bearing, preventing precise installation. Therefore, compared to existing technologies, this invention employs a press-in method, using the shaft top piece 111 and support ring block 112 to simultaneously support the shaft end face and bearing end face. Specifically, the bottom surface of the center hole 1110 supports the shaft end face, and the bearing end face supports the upper surface of the support ring block 112 (or the surface of the shaft shoulder flush with it). In some applications, such as those with strict requirements on shaft insertion depth, using only a single shaft top piece 111 to simultaneously support both the shaft and bearing end faces is unsuitable. Furthermore, the present invention effectively solves this problem by adjusting the force-bearing surface. By changing the support surface, it eliminates the need to press down on a specific component separately, avoiding the impact of machining tolerances on installation. This allows the shaft and bearing to be fully installed and maintain excellent consistency. Moreover, adjusting the force-bearing surface also prevents situations where the shaft and shaft top piece 111 might not be able to simultaneously support both the shaft and bearing due to machining tolerances. The size of this tolerance determines the clearance size when the shaft or bearing is not fully installed after installation.

[0070] Furthermore, such as Figures 2-5 As shown, the support ring block 112 also includes at least one handle 114, which is disposed on the circumferential sidewall of the extension 1122. In one embodiment, the handle extends radially along the sleeve structure 1121.

[0071] The number of handles 114 is not limited; for example, it can be one, two, three, etc. The handles can be for manual operation to rotate the support ring block 112, or they can be installed on mechanical equipment for electrically controlled rotation. This invention does not limit the number of handles.

[0072] For further details, please see Figure 1 and Figure 2 The mounting device 1 for the dual-axis encoder also includes a base plate 14 locking member (not shown) and a base plate clamping member 144. The pressure-bearing assembly 11 is mounted on the base 13 via the base plate 14.

[0073] In one embodiment, the base plate 14 has a T-shaped structure and is provided with a plurality of strip holes 141. A portion of the plurality of strip holes 141 extends along a first direction, and the remaining portion of the plurality of strip holes 141 extends along a second direction.

[0074] In one embodiment, the first direction and the second direction are perpendicular to each other, so that the base plate 14 can be moved relative to the base 13 in the X or Y direction to adjust their relative positions.

[0075] The locking member passes through multiple slots 141 and can slide along the inner wall of the multiple slots 141. The base plate clamping member 144 is connected to the locking member (not shown in the figure) and can be engaged with the edge of the base 13 when the locking member is in the locked position to fix the pressure-bearing component 11 to the base 13. In one example of position adjustment, two parallel elongated holes are made at the flanges of the T-shaped base plate 14 in three directions (Y+, Y-, X-), two of which are distributed along the Y-axis and one along the X-axis. The locking element is a locking screw. The elongated holes are used to cooperate with the locking element and the locking screw to achieve locking and positioning. The locking element is set on the bottom surface of the base plate, and the lower end of the locking screw is fixed to the locking element and can slide in the elongated hole. When the pressure-bearing component 11 and the clamping part 121 in the pressing component 12 are aligned, the locking screw is tightened to lock the locking element, so that the locking element is respectively locked at the three corresponding edges of the base 13, thereby fixing the alignment position and facilitating installation.

[0076] Furthermore, such as Figure 1 and Figure 2 As shown, the base plate 14 is provided with multiple columns 15, which are arranged circumferentially along the support ring block 112. The housing 33 of the dual-axis encoder (as shown) Figure 4 (As shown) Installed on multiple columns 15.

[0077] Furthermore, such as Figure 6 As shown, the press assembly 12 includes a clamping part 121; the clamping part 121 includes a mounting bushing 1211, a sliding sleeve 1212, a magnetic suction element 1213, and a guide connector 1214.

[0078] The sliding sleeve 1212 is fitted onto the outer wall of the mounting sleeve 1211 via the guide connector 1214 and can slide along the outer wall of the mounting sleeve 1211. The magnetic suction member 1213 is provided on the inner wall of the sliding sleeve 1212 and is used to attract the bearing of the dual-axis encoder to the inner wall of the sliding sleeve 1212 and the mounting sleeve 1211.

[0079] In one embodiment, the magnetic attractor 1213 may be, for example, a ring magnet, the guide connector 1214 may be a plug screw, and the outer wall of the mounting sleeve 1211 may have a protrusion 1215 with a mounting hole. One end of the plug screw is fixed to the sliding sleeve 1212, and the other end passes through the mounting hole and can slide along the inner wall of the mounting hole to drive the sliding sleeve 1212 to slide along the outer wall of the mounting sleeve 1211. In other alternative embodiments, the guide connector 1214 may also be, for example, a connecting rod with an external spring, to assist in achieving automatic reset.

[0080] An example of the operation of the clamping part 121 is as follows: When the clamping part 121 is in the initial state, the sliding sleeve 1212 falls naturally due to gravity, forming a cavity between it and the mounting sleeve 1211. The bearing can then be inserted into the cavity and attracted by the magnetic attractor 1213. The upper end face of the bearing contacts the lower end face of the mounting sleeve 1211, and the side cylindrical surface of the bearing contacts and is attracted by the magnetic attractor 1213.

[0081] Furthermore, such as Figure 1 As shown, the press-fit assembly 12 also includes a press-fit drive unit 122, which is connected to the clamping unit 121 to drive the clamping unit 121 to fit the bearing onto the encoder shaft and perform press-fitting. The type of press-fit drive unit is not limited and can be a manual press, cylinder, hydraulic cylinder, electric cylinder, jack, etc.

[0082] This invention also provides a method for installing a dual-axis encoder, which uses the mounting device for the dual-axis encoder described in the above embodiments and possible implementations to achieve the aligned installation of the dual-axis encoder; please refer to... Figures 4-7 The installation methods for a dual-axis encoder include:

[0083] Step S1: Insert the encoder shaft 21 into the center hole 1110 of the shaft top piece 111, and press the end face of the encoder shaft 21 into contact with the bottom surface of the center hole 1110.

[0084] Step S2: Attach the first bearing 31 of the dual-axis encoder to the inner wall of the sliding sleeve 1212 of the press-fit assembly 12 and the mounting sleeve 1211.

[0085] Step S3: Adjust the support ring block 112 to the pre-pressed position.

[0086] Step S4: Press the first bearing 31 against the upper end face of the support ring block 112 by driving the press assembly 12 and then release it.

[0087] Steps S1, S2, S3 and S4 can be specifically understood as follows: the first bearing 31 is adsorbed in the cavity between the sliding sleeve and the mounting sleeve, the encoder shaft is inserted into the center hole 1110 of the shaft top part, and the shaft end face is made to contact and bear pressure with the bottom surface of the center hole 1110. The pressing drive part of the pressing assembly is pressed down, and the lower end face of the first bearing 31 is pressed on the upper end face of the support ring block. At this time, the surface where the shaft shoulder is located is lower than the upper end face of the support ring block.

[0088] Step S5: After installing the housing 33 of the dual-axis encoder, a bushing 34 is installed in the space formed between the first bearing 31 and the housing 33.

[0089] Step S6: Attach the second bearing 32 of the dual-axis encoder to the inner wall of the sliding sleeve 1212 of the press-fit assembly 12 and the mounting sleeve 1211;

[0090] Step S7: By driving the press-fit assembly 12, the positions of the second bearing 32, the bushing 34, the first bearing 31, and the housing 33 of the dual-axis encoder are fixed relative to each other, thus completing the pre-installation;

[0091] Step S8: Adjust the support ring block 112 to the press-fit position;

[0092] Step S9: Drive the pressing assembly 12 again to press the first bearing 31, bushing 34, second bearing 32 and housing 33, which are already fixed in relative position, together, so that the lower end face of the first bearing 31 abuts and presses against the shoulder 210 of the encoder shaft to complete the installation.

[0093] Steps S5, S6, S7, S8, and S9 can be specifically understood as follows: Install the housing 33, bushing 34, and second bearing 32. Install the magnetic encoder housing 33 on the column 15. A space for the bushing 34 to be installed is formed between the inner wall of the magnetic encoder housing 33 and the first bearing 31. The bushing 34 is placed above the first bearing 31. Then, the second bearing 32 is attracted into the cavity between the sliding sleeve and the mounting bushing. Press down the pressing drive unit. Press the second bearing 32 and the housing 33 tightly to ensure that the first bearing 31, housing 33, bushing 34, and second bearing 32 are relatively installed in place to complete the initial pressing. Then, rotate the support ring block 112 to the pressing position and press down the pressing drive unit to press the initially pressed assembly onto the shaft mounting position, completing the installation.

[0094] Furthermore, before performing step S1, step S1' may be included: aligning the axis of the support ring block 112 in the pressure-bearing assembly 11 with the axis of the clamping part 121 (specifically, the sliding sleeve) in the press-fitting assembly 12.

[0095] Using the above installation method ensures that the bearing is properly aligned, avoiding jamming caused by misalignment. After proper positioning, operate the pressure assembly, and the installation sleeve will continuously press against the inner and outer rings of the bearing, moving vertically towards the installation position until it is fully clamped and secured. The entire installation process will not damage the bearing structure. During bearing installation, because the bottom force-bearing surface is on the bottom bearing and the shoulder surface is not under force, there may be instances where the bearing does not fully disengage. In such cases, by adjusting the support ring block, the force-bearing surface is adjusted to the shoulder surface. This simplifies the original one-way operation followed by a flipping operation to a single-directional operation, thus saving significant installation time, improving installation efficiency, reducing the cost of the fitting devices, and greatly enhancing the efficiency and economy of installation.

[0096] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A mounting device for a dual-axis encoder, characterized in that, Includes the base and the press-fitting and pressure-bearing components mounted on the base; The pressure-bearing assembly includes a shaft top member whose bottom is fixed to the base and has a central hole on its end face, and a support ring block sleeved on the end of the shaft top member and capable of being in a pre-pressed position or a press-fit position. The encoder shaft of the dual-axis encoder is inserted into the central hole and its upper end passes through the support ring block. When the support ring block is in the pre-pressed position, the upper end face of the support ring block is higher than the shoulder face of the encoder shaft. When the support ring block is in the press-fit position, the upper end face of the support ring block is lower than the shoulder face of the encoder shaft. The press-fit assembly is used to press-fit the bearing to be installed onto the encoder shaft; The pressure-bearing component also includes a plurality of stepped shafts, which are mounted on the base and arranged circumferentially along the support ring block; The support ring block includes a sleeve structure and an extension connected to the outer wall of the sleeve structure. The sleeve structure is sleeved on the end of the shaft top member. The extension has multiple through holes, each of which extends circumferentially along the support ring block. Each of the multiple stepped shafts passes through a corresponding through hole and can slide between a first position and a second position along the inner wall of the through hole. When the stepped shaft is in the first position, the support ring block is in the pre-pressed position; When the stepped shaft is in the second position, the support ring block is in the press-fit position.

2. The mounting device for the dual-axis encoder as described in claim 1, characterized in that, During press fitting, the bearing to be installed is clamped in the press fitting assembly. When the support ring block is in the pre-press fitting position, the press fitting assembly is pressed down so that the bearing to be installed abuts against the upper end face of the support ring block, thereby fitting the bearing to be installed onto the shaft segment located on the upper side of the shaft shoulder in the encoder shaft, thus completing the pre-press fitting. When the support ring block is in the press fitting position, the press fitting assembly is pressed down further so that the bearing to be installed abuts against the shaft shoulder of the encoder shaft, thus completing the press fitting.

3. The mounting device for the dual-axis encoder as described in claim 1, characterized in that, The extension has multiple countersunk holes on the side facing the base, and each countersunk hole communicates with a corresponding through hole; When the stepped shaft slides into the corresponding countersunk hole, the stepped shaft is limited to the second position so that the support ring block is in the press-fit position.

4. The mounting device for the dual-axis encoder as described in claim 1, characterized in that, The support ring block also includes at least one handle, which is disposed on the circumferential sidewall of the extension.

5. The mounting device for the dual-axis encoder as described in claim 1, characterized in that, The press-fit assembly includes a clamping part; the clamping part includes a mounting bushing, a sliding sleeve, a magnetic suction element, and a guide connector. The magnetic suction element is disposed on the inner wall of the sliding sleeve and is used to attract the bearing to be installed to the inner wall of the sliding sleeve and the mounting bushing. The sliding sleeve is sleeved on the outer wall of the mounting bushing through the guide connector. The outer wall of the mounting bushing has a protrusion with a mounting hole. One end of the guide connector is fixed to the sliding sleeve, and the other end passes through the mounting hole and can slide along the inner wall of the mounting hole, so as to drive the sliding sleeve to slide along the outer wall of the mounting bushing.

6. The mounting device for the dual-axis encoder as described in claim 5, characterized in that, The press-fit assembly further includes a press-fit drive unit connected to the clamping unit to drive the clamping unit to fit the bearing onto the encoder shaft and perform press-fitting.

7. The mounting device for a dual-axis encoder as described in any one of claims 1 to 6, characterized in that, It also includes a base plate, locking components, and a base plate clamping component; the pressure-bearing assembly is mounted on the base via the base plate; The base plate has a T-shaped structure and is provided with multiple strip holes. Parts of the multiple strip holes extend along a first direction, and the remaining parts of the multiple strip holes extend along a second direction. The locking member passes through the plurality of slots and can slide along the inner wall of the plurality of slots. The base plate clamping member is connected to the locking member and can engage with the edge of the base when the locking member is in the locked position, so as to fix the pressure-bearing component to the base.

8. The mounting device for a dual-axis encoder as described in claim 7, characterized in that, The base plate is provided with multiple columns, which are arranged circumferentially along the support ring block, and the housing of the dual-axis encoder is mounted on the multiple columns.

9. A method for installing a dual-axis encoder, characterized in that, The installation is achieved using the mounting device for the dual-axis encoder as described in any one of claims 1 to 8, comprising: Insert the encoder shaft into the center hole of the shaft top piece, and press the end face of the encoder shaft into close contact with the bottom surface of the center hole; The first bearing of the dual-axis encoder is adsorbed between the inner wall of the sliding sleeve of the press-fit assembly and the mounting sleeve; Adjust the support ring block to the pre-pressed position; The first bearing is pressed against the upper end face of the support ring block by driving the press assembly and then released. After the housing of the dual-axis encoder is installed, a bushing is set in the space formed between the housing and the first bearing; The second bearing of the dual-axis encoder is adsorbed between the inner wall of the sliding sleeve of the press-fit assembly and the mounting sleeve; The pre-installation is completed by driving the press-fit assembly to fix the positions of the second bearing relative to the bushing, the first bearing, and the housing of the dual-axis encoder. Adjust the support ring block to the press-fit position; The pressing assembly is driven again to press the first bearing, the bushing, the second bearing and the housing, which are already in fixed relative positions, together, so that the lower end face of the first bearing abuts and presses against the shoulder of the encoder shaft to complete the installation.

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