Flexible gear centering device

Abstract

The utility model provides a flexible gear centering device. The flexible gear centering device comprises a sliding table base, a driving structure, a first flexible gear clamp and a second flexible gear clamp. The first flexible gear clamp and the second flexible gear clamp are both connected with the sliding table base in a sliding mode in the first direction, the first flexible gear clamp and the second flexible gear clamp are oppositely arranged, the faces, facing each other, of the first flexible gear clamp and the second flexible gear clamp are both provided with stepped grooves, and the stepped grooves can bear flange plates of flexible gears; the driving structure can drive the first flexible gear clamp and the second flexible gear clamp to move oppositely in the first direction so that the first flexible gear clamp and the second flexible gear clamp can clamp a flange plate of a flexible gear. By means of the arrangement, the flange plate of the flexible gear is located in the stepped groove, then the driving structure is used for driving the first flexible gear clamp and the second flexible gear clamp to move in the opposite directions, and therefore the flange plate of the flexible gear is clamped, and centering of the flexible gear is completed by positioning the flange plate of the flexible gear. The problem that it is difficult to center the flexible gear of the harmonic reducer in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of reducer assembly tooling, and particularly relates to a flexspline centering device. Background Art

[0002] A harmonic reducer is a gear transmission structure that relies on a wave generator equipped with a flexible bearing to cause the flexspline to produce controllable elastic deformation and mesh with the rigid gear to transmit motion and power.

[0003] When assembling and debugging a harmonic reducer, it is necessary to adjust the concentricity of its various components. Among them, for the flexspline, especially the cap-shaped flexspline, due to its elastic body structure with a thin-walled cylinder, it is difficult to center the flexspline, and the detection difficulty of the flexspline is relatively high. This will further lead to difficulties in meeting the standards of the overall performance of the harmonic reducer in terms of accuracy, rigidity, noise, vibration, and service life. Utility Model Content

[0004] In view of this, the present application provides a flexspline centering device to solve the problem of difficulty in centering the flexspline of a harmonic reducer in the prior art.

[0005] To achieve the above object, the present application provides the following technical solutions:

[0006] A flexspline centering device includes:

[0007] A sliding table base;

[0008] A first flexspline clamp and a second flexspline clamp, which are slidably connected to the sliding table base along a first direction and are oppositely arranged. A stepped groove is provided on the side of the first flexspline clamp and the second flexspline clamp facing each other, and the stepped groove can support the flange of the flexspline.

[0009] A driving structure that can drive the first flexspline clamp and the second flexspline clamp to move towards each other along the first direction so that the first flexspline clamp and the second flexspline clamp clamp the flange of the flexspline.

[0010] Optionally, the driving structure is a screw rod, the screw rod is movably connected in the sliding table base, and the screw rod is provided with a first thread and a second thread that are axially distributed and have opposite helix directions;

[0011] The first flexspline clamp is provided with a first transmission thread that meshes with the first thread, the second flexspline clamp is provided with a second transmission thread that meshes with the second thread, and the rotation of the screw rod can drive the first flexspline clamp and the second flexspline clamp to approach and separate from each other.

[0012] Optionally, the first flexspline clamp and the second flexspline clamp are both provided with multiple layers of the stepped grooves, and the stepped grooves of each layer of the first flexspline clamp and the second flexspline clamp correspond one to one.

[0013] Optionally, a side of the stepped groove for circumferential contact with the flange of the flexible spline is an arc-shaped wall, and the arc-shaped wall can match at least a partial shape of the circumference of the flange of the flexible spline.

[0014] Optionally, the slide base is provided with a slide groove extending along the first direction;

[0015] The first flexible wheel clamp comprises a first slide table slidably matched with the slide groove and a first flexible wheel fixing seat detachably connected to the first slide table, the first flexible wheel fixing seat is provided with the stepped groove, and the first slide table is provided with the first transmission thread;

[0016] The second flexible wheel clamp includes a second slide table slidably matched with the slide groove and a second flexible wheel fixing seat detachably connected to the second slide table, the second flexible wheel fixing seat is provided with the stepped groove, and the second slide table is provided with the second transmission thread.

[0017] Optionally, both the first slide and the second slide include:

[0018] A sliding portion, located in the sliding groove;

[0019] A receiving portion, integrally connected with the sliding portion and located above the slide base;

[0020] Wherein, the first flexible pulley fixing seat and the second flexible pulley fixing seat are respectively connected to the corresponding receiving portion.

[0021] Optionally, a screw mounting seat is provided in the slide base, and the screw mounting seat is provided with a screw groove, and the screw groove accommodates part of the screw and allows the screw to rotate under force.

[0022] Optionally, at least one end of the screw rod is exposed and provided with a screw groove, and the screw groove is used for an external power mechanism to transmit torque to the screw rod.

[0023] Optionally, one of the first flexible wheel clamp and the slide base is provided with a guide protrusion extending along the first direction, and the other is provided with a guide groove matching with the guide protrusion;

[0024] The guide protrusion extending along the first direction is disposed on one of the second flexible wheel clamp and the slide base, and the guide groove is disposed on the other one.

[0025] Optionally, it further includes a mounting base. The sliding table base is connected to the mounting base by a dowel pin. There is a clearance area on the mounting base between the edge of the sliding table base and the edge of the mounting base. The mounting base can be installed and connected to an external workbench in the clearance area.

[0026] The flexspline centering device provided by this application includes a sliding table base, a driving structure, a first flexspline fixture, and a second flexspline fixture. Both the first flexspline fixture and the second flexspline fixture are slidably connected to the sliding table base along a first direction, and the first flexspline fixture and the second flexspline fixture are arranged oppositely. A stepped groove is provided on each side of the first flexspline fixture and the second flexspline fixture facing each other. The stepped groove can support the flange of the flexspline. The driving structure can drive the first flexspline fixture and the second flexspline fixture to move towards each other along the first direction, so as to clamp the flange of the flexspline. With such a setting, the flexspline is placed between the first flexspline fixture and the second flexspline fixture, and the flange of the flexspline is located in the stepped groove. In this way, the flexspline is in a state of being placed between the first flexspline fixture and the second flexspline fixture. Then, the driving structure is used to drive the first flexspline fixture and the second flexspline fixture to move towards each other, thereby clamping the flange of the flexspline. The flange has high stiffness and is easy to be accurately positioned. By positioning the flange of the flexspline, the centering of the flexspline is completed, solving the problem that it is difficult to center the flexspline of the harmonic reducer in the prior art. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0028] Figure 1 Isometric view of the flexspline centering device provided by the embodiment of this application;

[0029] Figure 2 Top view of the flexspline centering device provided by the embodiment of this application;

[0030] Figure 3 For Figure 2 Cross-sectional view at B in

[0031] Figure 4 Side view of the flexspline centering device provided by the embodiment of this application.

[0032] In Figures 1 - 4 :

[0033] 01. Flexspline;

[0034] 1. Slide base; 2. First flexible wheel clamp; 3. Second flexible wheel clamp; 4. Screw; 5. Screw mounting seat; 6. Mounting base; 7. Pin;

[0035] 101, guide groove;

[0036] 201, first slide; 202, first flexible wheel fixing seat;

[0037] 301, second slide; 302, second flexible wheel fixing seat;

[0038] 230, step groove;

[0039] 231, sliding portion; 232, receiving portion; 233, guide protrusion;

[0040] 401, screw groove. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] like Figures 1 - 4 As shown, an embodiment of the present application provides a flexible wheel centering device, which is particularly suitable for centering a cap-shaped flexible wheel 01. The cap-shaped flexible wheel 01 includes a body and a flange. The flange of the flexible wheel 01 has strong rigidity and can withstand greater pressure without deformation.

[0043] The flexible wheel centering device includes a slide base 1, a driving structure, a first flexible wheel clamp 2 and a second flexible wheel clamp 3; the first flexible wheel clamp 2 and the second flexible wheel clamp 3 are both slidably connected to the slide base 1 along the first direction, and the first flexible wheel clamp 2 and the second flexible wheel clamp 3 are arranged opposite to each other, and the first flexible wheel clamp 2 and the second flexible wheel clamp 3 are both provided with a stepped groove 230 on the side facing each other, the stepped groove 230 can support the flange of the flexible wheel 01, and there is a space for placing the flexible wheel 01 between the first flexible wheel clamp 2 and the second flexible wheel clamp 3; the driving structure can drive the first flexible wheel clamp 2 and the second flexible wheel clamp 3 to move toward each other along the first direction, so that the first flexible wheel clamp 2 and the second flexible wheel clamp 3 clamp the flange of the flexible wheel 01; correspondingly, the driving structure can also drive the first flexible wheel clamp 2 and the second flexible wheel clamp 3 to move away from each other along the first direction.

[0044] With such a setting, the flexible gear 01 is placed between the first flexible gear fixture 2 and the second flexible gear fixture 3, and the flange of the flexible gear 01 is located in the stepped groove 230. In this way, the flexible gear 01 presents a state of being placed between the first flexible gear fixture 2 and the second flexible gear fixture 3. Then, the driving structure is used to drive the first flexible gear fixture 2 and the second flexible gear fixture 3 to move towards each other, so as to clamp the flange of the flexible gear 01. The flange has high stiffness and is easy to be accurately positioned. By positioning the flange of the flexible gear 01, the centering of the flexible gear 01 is completed, solving the problem that it is difficult to center the flexible gear 01 of the harmonic reducer in the prior art.

[0045] Moreover, the flexible gear centering device provided in this application can not only be used for the assembly and debugging of the harmonic reducer where the flexible gear is located, but also for the processing (such as chamfering and polishing) before the flexible gear is finished, and the detection of items such as coaxiality, roundness, surface roughness and hardness of the flexible gear after processing.

[0046] In a preferred embodiment, both the first flexible gear fixture 2 and the second flexible gear fixture 3 are provided with multiple layers of stepped grooves 230, and the stepped grooves 230 of each layer of the first flexible gear fixture 2 and the second flexible gear fixture 3 correspond to each other one by one. The distribution direction of the multiple layers of stepped grooves 230 is consistent with the axial direction of the flexible gear 01 placed in this flexible gear centering device.

[0047] With such a setting, since there are multiple layers of stepped grooves 230, the spaces formed by the stepped grooves 230 of each layer between the first flexible gear fixture 2 and the second flexible gear fixture 3 for accommodating the flange are of different sizes. Therefore, it is applicable to the centering operations of flexible gears 01 of multiple models with different flange diameters, and one machine can be used for multiple purposes. The applicable cap-shaped flexible gears 01 can be cap-shaped flexible gears 01 of different sizes and specifications in the whole series, such as 14#, 17#, 20#, 25#, 32#, 40#, etc.

[0048] In another preferred embodiment, the surface of the stepped groove 230 for circumferentially contacting the flange of the flexible gear 01 is an arc-shaped wall, and the arc-shaped wall can be at least partially fitted with the circumferential shape of the flange of the flexible gear 01. It is preferably set that after the first flexible gear fixture 2 and the second flexible gear fixture 3 are combined, the stepped groove 230 completely fits the shape of the flange of the flexible gear 01.

[0049] With such a setting, the shape of the stepped groove 230 is adapted to the flange of the flexible gear 01, and the inner sides of the first flexible gear fixture 2 and the second flexible gear fixture 3 are circumferentially fitted with the flange of the flexible gear 01. In this way, the flange of the flexible gear 01 is evenly stressed, which is beneficial to better centering effect and higher centering accuracy of the flexible gear 01.

[0050] In another preferred embodiment, the driving structure is a screw rod 4, which is movably connected in the slide base 1. The screw rod 4 can rotate around its axis in the slide base 1, and the screw rod 4 is provided with a first thread and a second thread that are axially distributed and have opposite helix directions. The first flexible gear clamp 2 is provided with a first driving thread that meshes with the first thread, and the second flexible gear clamp 3 is provided with a second driving thread that meshes with the second thread. The rotation of the screw rod 4 can drive the first flexible gear clamp 2 and the second flexible gear clamp 3 to approach and separate from each other. Exemplarily, when the screw rod 4 rotates clockwise, it drives the first flexible gear clamp 2 and the second flexible gear clamp 3 to approach each other, and when the screw rod 4 rotates counterclockwise, it drives the first flexible gear clamp 2 and the second flexible gear clamp 3 to separate from each other.

[0051] With such a setting, the first flexible gear clamp 2 and the second flexible gear clamp 3 are driven to move simultaneously by one screw rod 4. Moreover, the rotational displacement of the first flexible gear clamp 2 and the second flexible gear clamp 3 is realized through threaded connection, so that the moving precision of the first flexible gear clamp 2 and the second flexible gear clamp 3 is higher, and finally the centering precision of the flexible gear 01 is higher, which is beneficial to further improving the comprehensive performance of the whole harmonic reducer.

[0052] Of course, in addition to the above method, it is also feasible to use two independent screw rods 4 to drive the first flexible gear clamp 2 and the second flexible gear clamp 3 to move respectively; or, use a double-headed ball screw to drive the first flexible gear clamp 2 and the second flexible gear clamp 3 to move synchronously.

[0053] Furthermore, at least one end of the screw rod 4 is exposed and provided with a screwing groove 401, and the screwing groove 401 is used for an external power mechanism to transmit torque to the screw rod 4. The screwing groove 401 can specifically be an internal hexagon, an internal pentagon, etc. The external power mechanism can be a motor, a rotary oil cylinder, etc. In this way, the external power mechanism can be conveniently inserted into the screwing groove 401 to perform the centering work of the flexible gear 01, which is convenient to use.

[0054] In a specific embodiment, the slide base 1 is provided with a chute extending in the first direction; the first flexible gear clamp 2 includes a first slide 201 that slidably cooperates with the chute and a first flexible gear fixing seat 202 that is detachably connected to the first slide 201. The first flexible gear fixing seat 202 is provided with a stepped groove 230, and the first slide 201 is provided with a first driving thread; the second flexible gear clamp 3 includes a second slide 301 that slidably cooperates with the chute and a second flexible gear fixing seat 302 that is detachably connected to the second slide 301. The second flexible gear fixing seat 302 is provided with a stepped groove 230, and the second slide 301 is provided with a second driving thread. The inner sides of the first flexible gear fixing seat 202 and the second flexible gear fixing seat 302 are provided with a stepped groove 230 and an arc-shaped wall, that is, the first flexible gear fixing seat 202 and the second flexible gear fixing seat 302 are used to clamp the flange of the flexible gear 01.

[0055] With such a setting, the first flexspline fixing seat 202 and the second flexspline fixing seat 302 are designed to be replaceable. When it is necessary to replace the first flexspline fixing seat 202 and the second flexspline fixing seat 302 with other sizes according to the model of the to-be-centered flexspline 01, the first sliding table 201 and the second sliding table 301 always maintain a stable threaded connection relationship with the screw rod 4 and do not participate in disassembly and assembly. Therefore, the threaded fit is ensured to maintain high precision, which is beneficial to ensuring that the centering accuracy of the flexspline centering device for the flexspline 01 always remains at a high level.

[0056] Regarding the split design of the first flexspline fixture 2 and the second flexspline fixture 3, specifically, there may be an insertion groove and an insertion rib that extend along the second direction and can be concavely and convexly fitted between the flexspline 01 fixing seat and the sliding table, and the second direction is perpendicular to the first direction. Or, it is also feasible to connect them through fasteners.

[0057] Of course, in addition to the above methods, it is also feasible that both the first flexspline fixture 2 and the second flexspline fixture 3 are non-separable integral structures.

[0058] Furthermore, it can be preferably set that both the first sliding table 201 and the second sliding table 301 include a sliding connection part 231 and a receiving part 232; the sliding connection part 231 is located in the sliding groove; the receiving part 232 is integrally connected to the sliding connection part 231 and is located above the sliding table base 1; wherein, the first flexspline fixing seat 202 and the second flexspline fixing seat 302 are respectively connected to the corresponding receiving parts 232, and the bottom of the sliding connection part 231 is in threaded fit with the screw rod 4. The shapes of the first sliding table 201 and the second sliding table 301 can be specifically set as T-shaped.

[0059] With such a setting, the receiving part 232 is designed to be wider than the sliding connection part 231, which is beneficial to providing a larger connection area for the flexspline 01 fixing seat connected above, so that the flexspline 01 fixing seat can move smoothly, which is beneficial to improving the centering accuracy of the flexspline 01; at the same time, the receiving part 232 increases the contact area between the sliding table and the sliding table base 1. Therefore, the receiving part 232 can share the pressure borne by the sliding connection part 231, preventing excessive load on the position of the thread engagement, and thus preventing poor wear of the thread.

[0060] In addition, regarding how the screw rod 4 is connected in the sliding table base 1, it can be specifically set that there is a screw rod mounting seat 5 in the sliding table base 1. The screw rod mounting seat 5 is strip-shaped, the screw rod mounting seat 5 is located at the bottom of the sliding groove and is installed and connected to the sliding table base 1 through fasteners. The screw rod mounting seat 5 is located below the first sliding table 201 and the second sliding table 301. The screw rod mounting seat 5 is provided with a screw rod groove with an arc-shaped cross-section. The screw rod groove accommodates part of the screw rod 4 and allows the screw rod 4 to rotate under force, or rather, the screw rod 4 rotates under force in the screw rod groove under the limitation of the screw rod groove.

[0061] With such a setting, it is easier to machine the screw groove on the screw mounting base 5 with a regular shape. The screw mounting base 5 is then connected to the slide base 1 through a simple and feasible fastening connection method, which is convenient for production, manufacturing and assembly, and has high feasibility.

[0062] Correspondingly, the bottom surfaces of the first slide 201 and the second slide 301 are provided with arc-shaped thread grooves, and the first driving thread and the second driving thread are located in the corresponding thread grooves. In this way, the screw groove and the thread groove cooperate to surround the circumference of the screw 4.

[0063] In another preferred embodiment, one of the first flexure fixture 2 and the slide base 1 is provided with a guiding protrusion 233 extending in the first direction, and the other is provided with a guiding groove 101 cooperating with the guiding protrusion 233; one of the second flexure fixture 3 and the slide base 1 is provided with a guiding protrusion 233 extending in the first direction, and the other is provided with a guiding groove 101. Exemplarily, the first slide 201 of the first flexure fixture 2 is provided with a guiding protrusion 233, the second slide 301 of the second flexure fixture 3 is provided with a guiding protrusion 233, and the slide base 1 is provided with a guiding groove 101. Please refer to Figure 3 and Figure 4 。

[0064] With such a setting, under the cooperation of the guiding protrusion 233 and the guiding groove 101, the movement of the first slide 201 and the second slide 301 is more stable; at the same time, the guiding protrusion 233 and the guiding groove 101 play a limiting role, making the connection between the first slide 201, the second slide 301 and the slide base 1 reliable, and preventing the first slide 201 and the second slide 301 from disengaging from the slide base 1 along the depth direction of the chute.

[0065] The above-mentioned flexure centering device can be fixedly installed on the workbench. In addition, in an alternative embodiment, it further includes a mounting base 6. The slide base 1 is connected to the mounting base 6 through a dowel pin 7. The mounting base 6 has a clearance area located between the edge of the slide base 1 and the edge of the mounting base 6. The mounting base 6 can be installed and connected to an external workbench in the clearance area. The external workbench can be a processing table or an inspection table. With such a setting, it is beneficial for the flexure centering device to be disassembled, assembled and moved as needed, which is convenient to use.

[0066] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purposes of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0067] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any way. Words such as "including", "comprising", "having", etc. are open-ended terms, meaning "including but not limited to", and can be used interchangeably with each other. The words "or" and "and" used herein refer to the phrase "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.

[0068] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.

[0069] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0070] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth", and "sixth" used in the description of the embodiments of this application are only used to more clearly elaborate the technical solutions and cannot be used to limit the protection scope of this application.

[0071] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions, and sub-combinations thereof.

Claims

1. A flexible wheel centering device, characterized in that: include: Slide base (1); The first flexible wheel clamp (2) and the second flexible wheel clamp (3) are connected to the slide base (1) in a sliding manner along a first direction and are arranged opposite to each other. The first flexible wheel clamp (2) and the second flexible wheel clamp (3) are provided with a stepped groove (230) on one side facing the other, and the stepped groove (230) can support the flange of the flexible wheel (01); The driving structure can drive the first flexible wheel clamp (2) and the second flexible wheel clamp (3) to move toward each other along the first direction, so that the first flexible wheel clamp (2) and the second flexible wheel clamp (3) clamp the flange of the flexible wheel (01).

2. The flexible wheel centering device according to claim 1, characterized in that: The driving structure is a screw (4), the screw (4) is movably connected to the slide base (1), and the screw (4) is provided with a first thread and a second thread distributed along the axial direction and having opposite rotation directions; The first flexible wheel clamp (2) is provided with a first transmission thread meshing with the first thread, and the second flexible wheel clamp (3) is provided with a second transmission thread meshing with the second thread. The rotation of the screw rod (4) can drive the first flexible wheel clamp (2) and the second flexible wheel clamp (3) to move closer to and away from each other.

3. The flexible wheel centering device according to claim 1, characterized in that: The first flex spline clamp (2) and the second flex spline clamp (3) are both provided with multiple layers of the stepped grooves (230), and the layers of the stepped grooves (230) of the first flex spline clamp (2) and the second flex spline clamp (3) correspond one to one.

4. The flexible wheel centering device according to claim 1, characterized in that: The side of the stepped groove (230) used for circumferential contact with the flange of the flexible wheel (01) is an arc-shaped wall, and the arc-shaped wall can match at least a partial shape of the circumferential flange of the flexible wheel (01).

5. The flexible wheel centering device according to claim 2, characterized in that: The slide base (1) is provided with a slide groove extending along a first direction; The first flexible wheel clamp (2) comprises a first slide (201) slidably matched with the slide groove and a first flexible wheel fixing seat (202) detachably connected to the first slide (201), the first flexible wheel fixing seat (202) is provided with the stepped groove (230), and the first slide (201) is provided with the first transmission thread; The second flexible wheel clamp (3) comprises a second slide (301) slidably matched with the slide groove and a second flexible wheel fixing seat (302) detachably connected to the second slide (301), the second flexible wheel fixing seat (302) is provided with the stepped groove (230), and the second slide (301) is provided with the second transmission thread.

6. The flexible wheel centering device according to claim 5, characterized in that: The first slide (201) and the second slide (301) both include: A sliding portion (231), located in the sliding groove; A receiving portion (232) is integrally connected to the sliding portion (231) and is located above the slide base (1); The first flexible pulley fixing seat (202) and the second flexible pulley fixing seat (302) are respectively connected to the corresponding receiving portion (232).

7. The flexible wheel centering device according to claim 2, characterized in that: A screw rod mounting seat (5) is provided in the slide base (1), and the screw rod mounting seat (5) is provided with a screw rod groove, and the screw rod groove accommodates part of the screw rod (4) and allows the screw rod (4) to rotate under force.

8. The flexible wheel centering device according to claim 2, characterized in that: At least one end of the screw rod (4) is exposed and provided with a screw groove (401), and the screw groove (401) is used for an external power mechanism to transmit torque to the screw rod (4).

9. The flexible wheel centering device according to claim 1, characterized in that: One of the first flexible wheel clamp (2) and the slide base (1) is provided with a guide protrusion (233) extending along the first direction, and the other is provided with a guide groove (101) matching with the guide protrusion (233); One of the second flexible wheel clamp (3) and the slide base (1) is provided with the guide protrusion (233) extending along the first direction, and the other is provided with the guide groove (101).

10. The flexible wheel centering device according to claim 1, characterized in that: It also comprises a mounting base (6), the slide base (1) being connected to the mounting base (6) via a pin (7), the mounting base (6) having a clearance zone between an edge of the slide base (1) and an edge of the mounting base (6), and the mounting base (6) being able to be mounted and connected to an external workbench in the clearance zone.

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