Running-in device
By designing an automated running-in device, the problem of inconsistent door hinge rotation torque was solved, automated running-in and inspection preparation for the door hinges were realized, and production efficiency and equipment adaptability were improved.
Patent Information
- Application Number
- CN202422719991.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-08
AI Technical Summary
During the automobile production process, there are slight differences in the door hinges after they are manufactured, resulting in the rotational torque not being within the appropriate range. Multiple friction contacts are required to meet the qualified standards, and there is a lack of automated running-in equipment.
A running-in device is designed, including a frame, a running-in module, a lifting drive device, a pre-pressing module and a limit module. Through the lifting movement of the running-in module and the limitation of the pre-pressing plate, the automatic running-in of the door hinge is realized to ensure that the rotational torque is within the appropriate range.
It realizes the automated running-in of door hinges, ensures the consistency of rotational torque, improves production efficiency, reduces labor costs, adapts to various door hinge products, and meets testing requirements.
Smart Images
Figure CN223339116U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a running-in device, belonging to the technical field of automation equipment. Background Art
[0002] During the automobile production process, a large number of door hinges need to be installed on the automobile body. The quality of the door hinges has a great impact on the quality of the automobile.
[0003] The door hinge is a key component that secures the body and door together and is the door's primary load-bearing component. The door rotates around the hinge axis to open and close. Generally speaking, a door hinge consists of three parts: the door assembly, the body assembly, and the hinge shaft. Bushings may be installed in the pin holes of the door or body assembly, allowing both to rotate around the hinge axis. Strict requirements apply to the ease with which the door or body assembly can rotate around the hinge axis. The condition of the bushing's inner hole—namely, its shape, size, and smoothness—affects the hinge shaft's rotation, which in turn affects the torque required to rotate the hinge, and thus the quality of the hinge assembly.
[0004] During the assembly process of door hinges, torque is often used as a parameter for quality control. During torque testing, the door component is rotated forward and reverse around the hinge axis to measure its torque. If the torque is within the appropriate range, the door hinge is considered qualified.
[0005] However, after the door hinge is manufactured, there are usually some minor differences or irregularities, which require multiple opening and closing of the hinge and frictional contact of the various components of the door hinge to ensure that the rotational torque of the door hinge is within the appropriate range.
[0006] Therefore, it is necessary to develop a running-in device for door hinges to realize the automated running-in of door hinges. Utility Model Content
[0007] In order to solve one of the above technical problems, the present disclosure provides a running-in device.
[0008] According to one aspect of the present disclosure, a running-in device is provided, which is used for running-in a workpiece to be run-in, wherein the workpiece to be run-in comprises a first part and a second part that are capable of relatively rotating; the running-in device comprises:
[0009] frame;
[0010] a running-in module, the running-in module being slidably disposed on the frame so as to be capable of generating a lifting motion relative to the frame;
[0011] A lifting drive device, which is provided on the frame and is used to drive the running-in module to generate lifting motion; and
[0012] A pre-pressing module is used to limit the position of the first part; wherein the running-in module is used to drive the second part to rotate reciprocatingly relative to the first part.
[0013] According to at least one embodiment of the present disclosure, the running-in device further includes:
[0014] A tooling module is used to hold the workpiece to be run-in; wherein the pre-pressing module cooperates with the tooling module to limit the position of the first part.
[0015] According to at least one embodiment of the present disclosure, the running-in device comprises:
[0016] a pre-pressing drive device, the pre-pressing drive device being arranged on the frame; and
[0017] A pre-pressing plate is arranged on the pre-pressing drive device to drive the pre-pressing plate to generate a lifting movement through the pre-pressing drive device, wherein the first part of the workpiece to be ground is confined between the pre-pressing plate and the tooling module.
[0018] According to the running-in device of at least one embodiment of the present disclosure, there are two pre-pressing drive devices, and the two pre-pressing drive devices are arranged on both sides of the tooling module.
[0019] According to at least one embodiment of the present disclosure, the running-in device comprises:
[0020] a shaft holding portion, the shaft holding portion being used to hold the hinge shaft of the workpiece to be ground; and
[0021] The first portion holding portion is provided in two portions and is located on both sides of the shaft holding portion, wherein the pre-compression plate is used to cooperate with at least one of the two first portion holding portions.
[0022] According to at least one embodiment of the present disclosure, the running-in device comprises:
[0023] A running-in drive device, the running-in drive device having a rotation axis; wherein the rotation axis of the running-in drive device is parallel to the rotation axis of the workpiece to be run-in; and
[0024] The shift forks are provided in at least two numbers, and the second portion of the workpiece to be run-in is located between the two shift forks, and the reciprocating rotation of the workpiece to be run-in is achieved through the reciprocating rotation of the run-in drive device.
[0025] According to the running-in device of at least one embodiment of the present disclosure, the running-in drive device is connected to a gearbox via a coupling, wherein the output shaft of the gearbox is provided with a running-in connector, and the shift fork is fixed to the running-in connector.
[0026] The running-in device according to at least one embodiment of the present disclosure further includes: a detection device for detecting a circumferential position of the running-in drive device.
[0027] According to the running-in device of at least one embodiment of the present disclosure, the workpiece to be run-in further includes a hinge shaft, the lower end of the hinge shaft is supported by the tooling module, and the upper end of the hinge shaft is limited by a limiting module.
[0028] According to at least one embodiment of the running-in device of the present disclosure, the limiting module includes:
[0029] A limit drive device, wherein the limit drive device is arranged on the frame;
[0030] A limit connecting piece, one end of which is connected to the limit driving device, and the limit driving device drives the limit connecting piece to generate a lifting motion;
[0031] A rotating shaft is rotatably arranged at the other end of the limiting connecting member, and the lower end of the rotating shaft is used to contact and cooperate with the hinge shaft to limit the position of the hinge shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0033] Figure 1 It is a schematic structural diagram of a running-in device according to one embodiment of the present disclosure.
[0034] Figure 2 It is a structural schematic diagram of a partial structure of a running-in device according to one embodiment of the present disclosure.
[0035] Figure 3 It is a structural schematic diagram of a partial structure of a running-in device according to an embodiment of the present disclosure from another angle.
[0036] Figure 4 It is a schematic structural diagram of a running-in module according to one embodiment of the present disclosure.
[0037] Figure 5 3 is a schematic structural diagram of another state of a running-in module according to an embodiment of the present disclosure.
[0038] Figure 6 It is a structural schematic diagram of a tooling module according to an embodiment of the present disclosure.
[0039] Figure 7 It is a structural schematic diagram of a limiting module according to an embodiment of the present disclosure.
[0040] The specific reference numerals in the figure are:
[0041] 100 racks
[0042] 200 Running-in Module
[0043] 210 lifting plate
[0044] 220 Running-in drive
[0045] 230 Coupling
[0046] 240 gearbox
[0047] 250 Running-in connector
[0048] 260 shift fork
[0049] 270 Detection Device
[0050] 300 lifting drive device
[0051] 400 pre-pressing module
[0052] 410 Preload Drive
[0053] 420 pre-pressed plate
[0054] 500 limit module
[0055] 510 limit drive device
[0056] 520 limit connector
[0057] 530 Rotation Axis
[0058] 600 tooling module
[0059] 610 shaft retaining portion
[0060] 620: First portion holding unit. DETAILED DESCRIPTION
[0061] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.
[0062] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0063] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.
[0064] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.
[0065] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.
[0066] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.
[0067] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and / or the values provided that will be recognized by those of ordinary skill in the art.
[0068] Figure 1 It is a schematic structural diagram of a running-in device according to one embodiment of the present disclosure. Figure 2 It is a structural schematic diagram of a partial structure of a running-in device according to one embodiment of the present disclosure. Figure 3 It is a structural schematic diagram of a partial structure of a running-in device according to an embodiment of the present disclosure from another angle.
[0069] The disclosed running-in device can be used to run-in a workpiece to be run-in, which may be a vehicle door hinge. In a typical implementation, the workpiece to be run-in may include a hinge shaft, a body member (i.e., the portion mounted on the vehicle body, hereinafter referred to as the first portion), and a door member (i.e., the portion mounted on the vehicle door, hereinafter referred to as the second portion). During actual use, the body member is fixed, while the door member is capable of rotating relative to the body member. Consequently, the first and second portions of the workpiece to be run-in are capable of relative rotation, and the axis of relative rotation between the first and second portions (i.e., the axis of rotation of the workpiece to be run-in) is the central axis of the hinge shaft.
[0070] like Figure 1 and Figure 2 As shown, the running-in device of the present disclosure may include structures such as a frame 100, a running-in module 200, a lifting drive device 300, a pre-pressing module 400 and a limiting module 500.
[0071] The frame 100 of the present disclosure may be a frame structure formed by interconnected plate-like components, wherein the running-in module 200 , the lifting drive device 300 , the pre-pressing module 400 and the limiting module 500 and other components may be directly or indirectly fixed to the frame 100 .
[0072] The running-in module 200 is slidably mounted on the frame 100 to generate a lifting motion relative to the frame 100. Specifically, the frame 100 of the present disclosure may be provided with two substantially vertical guide rails. Each guide rail is provided with a slider that can slide relative to the guide rail.
[0073] The running-in module 200 may include a lifting plate 210 , which can be fixedly connected to the slider, so that the running-in module 200 of the present disclosure can generate a lifting motion relative to the frame 100 .
[0074] The lifting drive device 300 is disposed on the frame 100 and is used to drive the running-in module 200 to generate a lifting motion. Specifically, the lifting drive device 300 of the present disclosure can be a cylinder, the cylinder body of which is fixed to the frame 100, and the piston rod of the cylinder is fixed to the lifting plate 210. Preferably, the piston rod of the cylinder can be fixed to the lifting plate 210 via a floating joint, thereby providing the running-in module 200 of the present disclosure with a certain floating ability during the lifting process. The piston rod also extends in the vertical direction. Therefore, when the lifting drive device 300 is in operation, it can drive the running-in module 200 to rise and fall relative to the frame 100.
[0075] Figure 4 It is a schematic structural diagram of a running-in module according to one embodiment of the present disclosure. Figure 53 is a schematic structural diagram of another state of a running-in module according to an embodiment of the present disclosure.
[0076] like Figure 4 and Figure 5 As shown, the running-in module 200 of the present disclosure may further include: a running-in drive device 220 and a shift fork 260 and other components.
[0077] Specifically, the running-in drive device 220 of the present disclosure can be fixed to the lifting plate 210. The running-in drive device 220 of the present disclosure can be a motor, which is preferably a servo motor. Therefore, the running-in device of the present disclosure has high rotation accuracy when working.
[0078] The output end of the running-in drive device 220 is provided with a coupling 230, which can be an elastic coupling or a cross coupling, etc. The coupling 230 is also connected to the gearbox 240, and the output shaft of the gearbox 240 is provided with a running-in connector 250, and the shift fork 260 is fixed to the running-in connector 250.
[0079] In other words, when the running-in drive device 220 of the present disclosure rotates, it can cause the running-in connector 250 to rotate. The rotation axis of the running-in drive device 220 is a vertical axis, and the rotation axis of the running-in connector 250 is also a vertical axis. At this time, the rotation axis of the workpiece to be run-in is also a vertical axis. Therefore, the rotation axis of the running-in drive device 220 is parallel or substantially parallel to the rotation axis of the workpiece to be run-in.
[0080] In the present disclosure, the running-in connector 250 is provided with mounting holes. In one embodiment, the number of mounting holes can be more than two; for example, the number of mounting holes can be three. Furthermore, at least two shift forks 260 are provided, and the upper ends of these two shift forks 260 are respectively mounted within the mounting holes. Thus, when the running-in device of the present disclosure is in use, the shift forks 260 can be installed in different mounting holes, so that the shift forks 260 have different positions and spacings, thereby adapting to different workpieces to be run-in, thereby increasing the use cases of the running-in device of the present disclosure.
[0081] In actual use, the second portion of the workpiece to be run-in is located between the two shift forks 260 , and the reciprocating rotation of the workpiece to be run-in is achieved through the reciprocating rotation of the run-in driving device 220 .
[0082] The running-in device of the present disclosure further includes a detection device 270, which is used to detect the circumferential position of the running-in drive device 220. Specifically, the detection device 270 of the present disclosure can be a beam switch, and a detection disk can be provided on the input shaft of the gearbox 240, with the edge of the detection disk located between the two beam switches. Furthermore, a notch is provided on the edge of the detection disk. When the notch is facing the beam switch, the signal emitted by the transmitter of the beam switch can pass through the notch and be received by the receiver, thereby triggering the receiver to obtain the position of the input shaft of the gearbox 240. Accordingly, based on the transmission relationship of the gearbox 240, the position of the output shaft can also be obtained.
[0083] In the present disclosure, the pre-pressing module 400 is used to limit the position of the first part; and the running-in module 200 is used to drive the second part to rotate back and forth relative to the first part.
[0084] That is to say, when the running-in device of the present invention is in use, the body part of the door hinge can be fixed and the door part can be driven to rotate, so that the running-in device of the present invention can accurately simulate the working process of the door hinge and have a better running-in effect.
[0085] Specifically, if Figure 1 and Figure 2 As shown, the pre-pressing module 400 disclosed herein may include: a pre-pressing drive device 410 and a pre-pressing plate 420; the pre-pressing drive device 410 is arranged on the frame 100, wherein the pre-pressing drive device 410 may be a cylinder; the pre-pressing plate 420 is arranged on the pre-pressing drive device 410, so as to drive the pre-pressing plate 420 to generate a lifting movement through the pre-pressing drive device 410, wherein the first part of the workpiece to be ground is confined between the pre-pressing plate 420 and the tooling module 600.
[0086] The pre-pressing module 400 may further include a displacement sensor capable of detecting the distance the pre-pressing plate 420 is driven downward by the pre-pressing drive device 410 , thereby determining whether the pre-pressing of the first part has been completed based on the data detected by the displacement sensor.
[0087] Figure 6 It is a structural schematic diagram of a tooling module according to an embodiment of the present disclosure.
[0088] like Figure 1 and Figure 2 As shown, the tooling module 600 of the present disclosure is used to hold the workpiece to be ground; wherein, the pre-pressing module 400 cooperates with the tooling module 600 to limit the position of the first part.
[0089] like Figure 6As shown, the tooling module 600 of the present disclosure includes: a shaft retaining portion 610 and a first retaining portion 620. The shaft retaining portion 610 is used to support and retain the hinge shaft of the workpiece to be run-in from below; two first retaining portions 620 are provided, and these two first retaining portions 620 are located on both sides of the shaft retaining portion 610. The pre-pressing plate 420 is used to cooperate with at least one of the two first retaining portions 620. As a result, the tooling module 600 of the present disclosure can adapt to different models of vehicle door hinges, expanding the application range of the disclosed running-in device.
[0090] In a preferred embodiment, there are two pre-stressing drive devices 410 , which are arranged on both sides of the tooling module 600 . Thus, the pre-stressing plate 420 can be stably moved downward by the two pre-stressing drive devices 410 .
[0091] Figure 7 It is a structural schematic diagram of a limiting module according to an embodiment of the present disclosure.
[0092] like Figure 7 As shown, the upper end of the hinge shaft of the vehicle door hinge disclosed in the present invention is limited by the limiting module 500, thereby, the hinge shaft of the vehicle door hinge disclosed in the present invention can be set between the tooling module 600 and the limiting module 500, and be stably maintained by the tooling module 600 and the limiting module 500.
[0093] Specifically, the position limiting module 500 of the present disclosure includes: a position limiting drive device 510, a position limiting connector 520, and a rotating shaft 530. The position limiting drive device 510 is disposed on the frame 100, wherein the position limiting drive device 510 can be a cylinder. One end of the position limiting connector 520 is connected to the position limiting drive device 510. Specifically, one end of the position limiting connector 520 can be connected to the position limiting drive device 510 via a fixing plate, so that the position limiting drive device 510 drives the position limiting connector 520 to generate a lifting motion.
[0094] The rotating shaft 530 of the present disclosure is rotatably mounted on the other end of the position-limiting connector 520. The lower end of the rotating shaft 530 is configured to engage with the hinge shaft to limit the position of the hinge shaft. In other words, the hinge shaft of the vehicle door hinge of the present disclosure can be assembled from two parts. In this case, the tooling module 600 supports and holds the lower half of the hinge shaft, while the rotating shaft 530 limits the upper half of the hinge shaft.
[0095] In the prior art, after a door hinge is manufactured, it can be run-in in the disclosed run-in device. This run-in process ensures smooth and accurate opening and closing performance in actual use, i.e., consistent torque values. Torque run-in ensures that the hinge will not wear out or malfunction due to prolonged use.
[0096] In addition, with the increase in automobile sales, the demand for hinges continues to increase, and the market demand for hinge running-in is also growing. In particular, with the continuous emergence of new products and materials, the performance requirements for hinges have become more stringent. This makes hinge running-in an indispensable part of many manufacturing production lines. The running-in device disclosed in this disclosure can run-in a variety of hinges to meet the requirements of automated production, saving a lot of manpower and time, reducing equipment investment, and significantly improving factory efficiency.
[0097] Door hinges come in many types and shapes. Although their assembly technology is mature, the realization of fully automated production is still restricted by many factors. The assembly accuracy of the door hinge directly affects the torque value of its rotation. Generally, a torque running-in operation is required before torque detection. After the torque running-in, the torque detection is performed again. Only then will the torque value obtained be accurate. During the running-in process of the running-in device disclosed in the present invention, one side of the body part is fixed and one side of the door part rotates, while the rotation of the hinge shaft is not restricted. The torque running-in effect is good, and it is also compatible with a variety of door hinge products. It not only meets production requirements and ensures that subsequent inspections can be carried out smoothly, but also reduces equipment investment costs.
[0098] When the running-in device disclosed herein is in use, the products on the automated production line can be transported to the tooling module by a robotic arm or manually, and then restricted on the tooling module. The limiting module limits the hinge shaft of the product in the axial direction to ensure axial concentricity without pressing the hinge shaft; the pre-pressing module descends to press the body parts of the product to prevent them from rotating; a shift fork is provided at the bottom of the running-in module to rotate the door parts, and rotate back and forth multiple times to complete the torque running-in operation.
[0099] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.
[0100] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0101] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.
Claims
1. A running-in device, the running-in device is used to run in a workpiece to be run-in, wherein: The workpiece to be ground-in comprises a first part and a second part that can rotate relative to each other; and the feature is that the ground-in device comprises: frame; a running-in module, the running-in module being slidably disposed on the frame so as to be capable of generating a lifting motion relative to the frame; A lifting drive device, the lifting drive device is provided on the frame and is used to drive the running-in module to generate lifting motion; and A pre-pressing module is used to limit the position of the first part; wherein the running-in module is used to drive the second part to rotate reciprocatingly relative to the first part.
2. The running-in device according to claim 1, characterized in that: Also includes: A tooling module is used to hold the workpiece to be run-in; wherein the pre-pressing module cooperates with the tooling module to limit the position of the first part.
3. The running-in device according to claim 2, characterized in that: The pre-pressing module comprises: a pre-pressing drive device, the pre-pressing drive device being arranged on the frame; and A pre-pressing plate is arranged on the pre-pressing drive device to drive the pre-pressing plate to generate a lifting movement through the pre-pressing drive device, wherein the first part of the workpiece to be ground is confined between the pre-pressing plate and the tooling module.
4. The running-in device according to claim 3, characterized in that: There are two pre-pressing drive devices, which are arranged on both sides of the tooling module.
5. The running-in device according to claim 4, characterized in that: The tooling module includes: a shaft holding portion, the shaft holding portion being used to hold the hinge shaft of the workpiece to be ground; and The first portion holding portion is provided in two portions and is located on both sides of the shaft holding portion, wherein the pre-compression plate is used to cooperate with at least one of the two first portion holding portions.
6. The running-in device according to claim 1, characterized in that: The running-in module comprises: A running-in drive device, the running-in drive device having a rotation axis; wherein the rotation axis of the running-in drive device is parallel to the rotation axis of the workpiece to be run-in; and The shift forks are provided in at least two numbers, and the second portion of the workpiece to be run-in is located between the two shift forks, and the reciprocating rotation of the workpiece to be run-in is achieved through the reciprocating rotation of the run-in drive device.
7. The running-in device according to claim 6, characterized in that: The running-in drive device is connected to a gearbox via a coupling, wherein an output shaft of the gearbox is provided with a running-in connector, and the shift fork is fixed to the running-in connector.
8. The running-in device according to claim 6, characterized in that: Also includes: A detection device is used to detect the circumferential position of the running-in drive device.
9. The running-in device according to claim 2, characterized in that: The workpiece to be ground-in further includes a hinge shaft, the lower end of the hinge shaft is supported by the tooling module, and the upper end of the hinge shaft is limited by the limiting module.
10. The running-in device according to claim 9, characterized in that: The limiting module includes: A limit drive device, wherein the limit drive device is arranged on the frame; A limit connecting piece, one end of which is connected to the limit driving device, and the limit driving device drives the limit connecting piece to generate a lifting motion; A rotating shaft is rotatably arranged at the other end of the limiting connecting member, and the lower end of the rotating shaft is used to contact and cooperate with the hinge shaft to limit the position of the hinge shaft.