Roll-in device and roll-in method for outer sleeve of radial spherical plain bearing

Abstract

The invention relates to a radial spherical plain bearing outer sleeve rolling device and a radial spherical plain bearing outer sleeve rolling method. The discharging mechanism is used for storing and outputting radial spherical plain bearing workpieces to be machined; the feeding mechanism is arranged on the downstream portion of the discharging mechanism and used for receiving the workpieces output by the discharging mechanism and conveying the workpieces to a rolling station in a stepping mode. The rolling mechanism is arranged on the downstream portion of the feeding mechanism and comprises a rolling station, and rolling machining is conducted on the workpieces on the rolling station. And the material collecting mechanism is arranged at the downstream of the rolling mechanism and is used for collecting the workpieces processed by the rolling mechanism. The radial spherical plain bearing is automatically rolled, the operation efficiency is high, and the ideal stress release effect can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of bearing processing equipment, and in particular to a radial spherical plain bearing outer shell rolling device and a rolling method. Background Art

[0002] With the development of mechanical manufacturing and bearing production technology, the processing technology of radial spherical bearing outer sleeve has emerged. This technology is mainly used to produce seamless radial spherical bearings. Its characteristic is that it can form a good match between the bearing outer sleeve and the radial steel ball through a specific processing procedure, thereby improving the overall performance and service life of the spherical bearing.

[0003] In the related art, the processing of radial spherical plain bearing outer sleeves usually includes a swaging process and a subsequent rolling process. After the swaging process, the traditional method often uses manual or semi-automatic rolling to release the contact stress between the outer sleeve and the steel ball. However, this processing method is not only inefficient, but also has limited control accuracy during the rolling process, making it difficult to ensure that each rolling process can achieve the ideal stress release effect.

[0004] The above-mentioned traditional rolling method has the problem of low automation, which not only affects the production efficiency, but also may cause poor fit between the bearing sleeve and the steel ball due to uneven rolling, thereby affecting the overall performance and service life of the spherical bearing.

[0005] Therefore, it is necessary to develop a radial spherical plain bearing outer shell rolling device and rolling method to solve the problems existing in the prior art. Summary of the invention

[0006] Based on this, it is necessary to provide a radial spherical plain bearing outer shell rolling device and rolling method to address the above problems, so as to automatically roll the radial spherical plain bearing with high operating efficiency and achieve an ideal stress release effect.

[0007] A radial spherical plain bearing outer shell rolling device, comprising:

[0008] A discharging mechanism, used for storing and discharging the radial spherical plain bearing workpieces to be processed;

[0009] A feeding mechanism, arranged downstream of the discharging mechanism, for receiving the workpiece outputted by the discharging mechanism and conveying the workpiece to the rolling station in a step-by-step manner;

[0010] A rolling mechanism, disposed downstream of the feeding mechanism, comprises a rolling station, at which the workpiece is subjected to rolling processing;

[0011] The material collecting mechanism is arranged downstream of the rolling mechanism and is used for collecting the workpieces processed by the rolling mechanism.

[0012] In one embodiment, the discharging mechanism includes: a material waiting barrel, which is used to store radial spherical bearing workpieces. A push plate is arranged in the material waiting barrel, and the push plate pushes the workpiece to the discharging port. The workpiece then rolls along the material trough to the feeding mechanism.

[0013] In one embodiment, the bottom of the push plate is connected to the output end of the push cylinder, and the push cylinder drives the push plate to push the workpiece to the discharge port at the top of the barrel; after the workpiece reaches the discharge port at the top of the barrel, it rolls along the length direction of the trough due to its own gravity.

[0014] In one embodiment, the feeding mechanism includes a bracket, a first supporting cylinder, a second supporting cylinder, a transverse cylinder and a supporting rod; the supporting rod passes through multiple workpieces to assist in support, the first supporting cylinder and the second supporting cylinder are raised and lowered synchronously to lift or lower the workpiece, and the transverse cylinder pushes the bracket to allow the workpiece to move laterally and reach the rolling station.

[0015] In one of the embodiments, the feeding mechanism further includes a roller, which is disposed above the bracket and contacts with the upper surface of the bracket. Under the action of the transverse movement cylinder, the roller rolls synchronously when the bracket moves transversely.

[0016] In one of the embodiments, the feeding mechanism further includes a return cylinder, which is used to push the supporting rod to reset, so as to facilitate the workpiece in the trough to be put back on the supporting rod.

[0017] In one embodiment, the rolling mechanism includes a base, and an intermediate pedestal is arranged on the top of the base. The intermediate pedestal is fixedly assembled with the upper frame through vertical columns to form an overall outer frame of the rolling mechanism 3;

[0018] In one of the embodiments, a downward pressing driving mechanism is installed on the upper frame, and the output end of the downward pressing driving mechanism is connected to the upper rolling roller, and the upper rolling roller is arranged opposite to the lower rolling roller below.

[0019] In one embodiment, the structure of the downward driving mechanism is a hydraulic cylinder or an electric push rod or a pneumatic push cylinder;

[0020] When the downward pressing driving mechanism is set as a hydraulic oil cylinder, a solenoid valve is connected, and the solenoid valve is controlled by a controller, thereby controlling the hydraulic oil cylinder to perform a downward pressing action;

[0021] When the pressing driving mechanism is set as an electric push rod, an external controller is connected, and an electric signal is sent to the electric push rod through the controller, so that the electric push rod performs the pressing operation according to the command of the electric signal;

[0022] When the downward pressing driving mechanism is set as a pneumatic push cylinder, an external controller is connected, and an electrical signal is sent to the pneumatic push rod through the controller, so that the pneumatic push rod performs the downward pressing operation according to the command of the electrical signal.

[0023] In one of the embodiments, the material receiving mechanism includes a material receiving frame and a material receiving barrel. The material receiving barrel is fixed on the material receiving frame and is used to receive and collect the processed workpieces output from the feeding mechanism.

[0024] A radial spherical plain bearing outer shell rolling method, using a radial spherical plain bearing outer shell rolling device to roll the radial spherical plain bearing workpiece, after the process of workpiece preparation, automatic feeding, step feeding, rolling processing and workpiece collection, the outer shell of the radial spherical plain bearing workpiece is rolled;

[0025] The specific process of the rolling is as follows:

[0026] Workpiece preparation: put the radial spherical plain bearing workpiece that has gone through the pressing process into the material barrel;

[0027] Automatic loading, the push cylinder pushes the push plate upwards, and the radial spherical bearing workpiece is carried to the discharge port of the barrel to be loaded, and the workpiece rolls into the discharge chute under the action of gravity;

[0028] Step feeding: according to the set parameters, the feeding mechanism is lifted after the upper roller completes a rolling operation; the first supporting cylinder and the second supporting cylinder on the bracket rise synchronously to lift the workpiece on the supporting rod, and under the push of the transverse cylinder, the bracket moves to the right to the processing position; then, the first supporting cylinder and the second supporting cylinder descend synchronously, and the workpiece on the supporting rod is at the rolling station, located between the upper roller and the lower roller, ready for rolling;

[0029] During rolling process, the downward pressure driving mechanism works to drive the upper rolling roller to move downward and press the workpiece for rolling. The stress release effect is ensured by adjusting the rolling time and pressure of the upper rolling roller.

[0030] After the workpieces are collected and rolled, the output end of the lower pressure drive mechanism is reset, the upper rolling roller is lifted, and the feeding mechanism repeats the cyclic stepping feeding action so that the processed workpieces fall into the collection bucket at the drop port at the end of the second support plate.

[0031] The above-mentioned radial spherical plain bearing outer shell rolling device and rolling method. First, through a highly automated processing flow, the production efficiency is significantly improved and the labor cost is reduced; secondly, the design of the rolling mechanism ensures the uniformity and stability of the rolling process, effectively improving the processing accuracy and surface quality of the workpiece; in addition, the discharging mechanism and the feeding mechanism work together to achieve continuous and stable transportation of the workpiece, avoiding the problem of workpiece accumulation or insufficient supply; finally, the entire device of the present application has a compact structure, integrated automation, simple operation, easy maintenance and servicing, and reduces the long-term use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure in one embodiment of the present application.

[0033] Figure 2 This is a transmission route diagram of a bearing during a rolling process in one embodiment of the present application.

[0034] Figure 3 Schematic diagram of the structure of a rolling mechanism in one embodiment of the present application.

[0035] Description of Figure Numbers:

[0036] 1. Discharging mechanism; 2. Feeding mechanism; 3. Rolling mechanism; 4. Receiving mechanism;

[0037] 101, discharging rack; 102, material waiting barrel; 103, material pushing cylinder; 104, material pushing plate; 105, material trough;

[0038] 201, bracket; 202, first supporting cylinder; 203, first supporting plate; 204, second supporting cylinder; 205, second supporting plate; 206, traverse cylinder; 207, roller; 208, supporting rod; 209, return cylinder;

[0039] 301, base; 302, middle pedestal; 303, column; 304, upper frame; 305, downward pressure driving mechanism; 306, upper roller; 307, lower roller; 308, gear box; 309, driving motor;

[0040] 401. Material collecting rack; 402. Material collecting barrel. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0047] See also Figure 1 , Figure 1 The structural schematic diagram of the rolling device in one embodiment of the present application is shown. The radial spherical plain bearing outer shell rolling device provided in one embodiment of the present application includes a discharging mechanism 1, a feeding mechanism 2, a rolling mechanism 3 and a receiving mechanism 4;

[0048] Among them, the feeding mechanism 2 is arranged downstream of the discharging mechanism 1, and the rolling mechanism 3 is arranged downstream of the feeding mechanism 2. The feeding mechanism 2 transports the workpiece to the rolling station of the rolling mechanism 3, and the receiving mechanism 4 is arranged at the end of the feeding mechanism 2.

[0049] Combination Figure 2 As shown, Figure 2 A transmission route diagram of a bearing in a rolling process in an embodiment of the present application is shown.

[0050] In some embodiments, the discharging mechanism 1 is used to store and automatically output the radial spherical bearing workpiece to be processed, and includes a discharging frame 101, a material barrel 102, a pushing cylinder 103, a pushing plate 104 and a material trough 105;

[0051] The material barrel 102 is fixed on the top of the discharge rack 101 and is used to store the workpieces to be processed. In a specific embodiment, the material barrel 102 adopts a slanted bottom design to facilitate the workpieces to automatically gather toward the discharge port due to gravity.

[0052] The top output end of the pushing cylinder 103 is connected to a pushing plate 104 , and the pushing plate 104 is disposed in the material barrel 102 .

[0053] The push cylinder 103 cooperates with the push plate 104 to push the workpiece to the discharge port, and the workpiece then rolls along the length direction of the trough 105 to the feeding mechanism 2. One end of the trough 105 is connected to the discharge port of the barrel 102 for material.

[0054] In a specific embodiment, the discharging mechanism 1 also includes a sensor (not shown in the figure), which is arranged on the material trough 105 and is used to detect the number of workpieces in the material trough 105. When it is detected that the material trough 105 is full, the sensor sends a signal to control the pushing cylinder 103 to stop moving, so as to avoid excessive accumulation of workpieces.

[0055] In some embodiments, the feeding mechanism 2 is used to receive the workpiece output from the discharging mechanism 1 and transport it step by step to the designated rolling station; the feeding mechanism 2 includes a bracket 201, a first supporting cylinder 202, a second supporting cylinder 204, a transverse cylinder 206, a roller 207, a supporting rod 208 and a return cylinder 209.

[0056] The process of step-by-step conveying includes: the first supporting cylinder 202 and the second supporting cylinder 204 are lifted synchronously, the lateral cylinder 206 drives the bracket 201 to move horizontally toward the rolling station, and after moving into position, the first supporting cylinder 202 and the second supporting cylinder 204 are lowered synchronously, and the rolling mechanism 3 performs rolling operation on the bearing workpiece in the rolling station;

[0057] After the rolling is completed, the return cylinder 209 pushes the support rod 208 to reset and penetrates the bearing workpiece at the end of the material trough 105; the transverse cylinder 206 drives the bracket 201 to reset, the first support cylinder 202 and the second support cylinder 204 are synchronously lifted again, and the transverse cylinder 206 drives the bracket 201 to move horizontally. At this time, the workpiece located on the rolling station is removed, and the workpiece at the station before the rolling station is sent to the rolling station;

[0058] Repeat the above-mentioned step-by-step conveying process until all workpieces are processed.

[0059] The bracket 201 is used to support components such as the supporting cylinder to maintain their stability.

[0060] The first supporting cylinder 202 and the second supporting cylinder 204 are respectively arranged at two ends of the bracket 201, and the tops thereof are respectively provided with a first supporting plate 203 and a second supporting plate 205.

[0061] Among them, the supporting rod 208 penetrates with the axis of the workpiece as the reference, and multiple workpieces are strung together on the supporting rod 208 to play a role in auxiliary support of the workpiece; at the same time, under the push of the transverse cylinder 206, the bracket 201 and the workpiece move laterally.

[0062] The roller 207 is disposed above the bracket 201 and contacts the upper surface of the bracket 201 , and rolling friction occurs between the roller 207 and the bracket 201 to reduce friction resistance when the bracket 201 moves laterally.

[0063] Among them, the return cylinder 209 is directly opposite to the end of the supporting rod 208 away from the discharging mechanism 1, and is used to push the supporting rod 208 to return to its original position, so as to facilitate the workpiece in the trough 105 to be put back on the supporting rod 208.

[0064] Combination Figure 3 As shown, Figure 3 A schematic structural diagram of a rolling mechanism 3 in an embodiment of the present application is shown.

[0065] In some embodiments, the rolling mechanism 3 includes a rolling station, where the workpiece is precisely rolled to optimize its performance. The rolling mechanism 3 includes a base 301, on top of which an intermediate pedestal 302 is arranged, and the intermediate pedestal 302 is fixedly assembled with an upper frame 304 through a vertical column 303 to form an overall outer frame of the rolling mechanism 3; and also includes a downward pressing drive mechanism 305, an upper rolling roller 306, a lower rolling roller 307, a gear box 308 and a drive motor 309.

[0066] The downward pressing driving mechanism 305 is installed on the upper frame 304 , and the output end of the downward pressing driving mechanism 305 is connected to the upper rolling roller 306 .

[0067] The lower roller 307 is connected to the driving motor 309 via a gear box 308 to achieve rotation.

[0068] When the workpiece is conveyed to the rolling station, the downward pressing driving mechanism 305 works to push the upper rolling roller 306 to move downward, and performs rolling processing on the workpiece together with the lower rolling roller 307 below.

[0069] In some embodiments, the downward pressing drive mechanism 305 can be configured as a hydraulic cylinder for downward pressing drive, an electric push rod for downward pressing drive, or a pneumatic push rod for downward pressing drive.

[0070] In a specific embodiment, the pressing driving mechanism 305 is configured as a hydraulic cylinder, and a solenoid valve is added to the pipeline of the hydraulic cylinder, and the solenoid valve receives an electrical signal command from the controller, thereby controlling the hydraulic cylinder to perform a pressing action;

[0071] In a specific embodiment, the pressing driving mechanism 305 is configured as an electric push rod, which is externally connected to a controller, and the controller sends an electrical signal to the electric push rod, so that the electric push rod performs a pressing operation according to the command of the electrical signal sent by the controller;

[0072] In a specific embodiment, the pressing drive mechanism 305 is configured as a pneumatic push rod, which is externally connected to a controller, and the controller sends an electrical signal to the pneumatic push rod, so that the pneumatic push rod performs a pressing operation according to the command of the electrical signal sent by the controller;

[0073] The controller is used to realize intelligent control of the downward pressing driving mechanism 305, and its control steps are: input the required technical requirements of roller loosening → after the machine is working, the loosening state is detected in real time through the sensor → the signal is fed back to the PLC module of the controller → the instruction is sent to the downward pressing driving mechanism 305 → the downward pressing action is executed, and the downward pressing action includes downward pressing pressure control and displacement adjustment control → the sensor continues to detect the new roller loosening state until the set technical requirements are met.

[0074] In a specific embodiment, the driving motor 309 drives the lower roller 307 to rotate through the gear box 308 to ensure that the rolling process is uniform and stable.

[0075] In some embodiments, the material receiving mechanism 4 includes a material receiving frame 401 and a material receiving barrel 402 .

[0076] The receiving barrel 402 is fixed on the receiving frame 401 to receive the finished workpieces output from the feeding mechanism 2. The receiving mechanism 4 is located at the drop opening at the end of the feeding mechanism 2, which can ensure that the finished workpieces are collected in an orderly manner for subsequent processing or packaging.

[0077] In some embodiments, the radial spherical plain bearing outer shell rolling method of the present application is as follows:

[0078] Workpiece preparation: the radial spherical plain bearing workpiece that has undergone the packing and pressing process is placed into the material-waiting barrel 102; further, the material-waiting barrel 102 is a slanted bottom structure;

[0079] Automatic loading: The push cylinder 103 pushes the push plate 104 upwards, and uses the inclined surface design to support the radial spherical bearing workpiece to the discharge port, and the workpiece rolls into the discharge trough 105 under the action of gravity; illustratively, the discharge mechanism 1 also includes a sensor (not shown in the figure), and the sensor detects whether the trough 105 is full, thereby controlling the pushing action; when the sensor detects that the trough 105 is full, the pushing mechanism stops to avoid excessive accumulation;

[0080] Step feeding: According to the set parameters, the feeding mechanism 2 is lifted after the upper rolling roller 306 completes a rolling operation; the first supporting cylinder 202 and the second supporting cylinder 204 on the bracket 201 rise synchronously, lift the workpiece on the supporting rod 208, and under the push of the traverse cylinder 206, the bracket 201 moves rightward to the processing position. Subsequently, the first supporting cylinder 202 and the second supporting cylinder 204 descend synchronously, and the workpiece on the supporting rod 208 is located at the rolling station, between the upper rolling roller 306 and the lower rolling roller 307, ready for rolling;

[0081] Rolling processing: the downward pressure driving mechanism 305 drives the upper rolling roller 306 to move downward, pressing the workpiece for rolling; illustratively, the rolling time and pressure of the upper rolling roller 306 can also be adjusted by the control system to ensure the stress release effect;

[0082] Workpiece collection: After rolling is completed, the output end of the lower pressure drive mechanism 305 is reset, the upper rolling roller 306 is lifted, and the feeding mechanism 2 repeats the cyclic stepping feeding action so that the processed workpiece falls into the collection bucket at the drop port at the end of the second support plate 205 for subsequent processing.

[0083] In the rolling method of the present application, in addition to the above-mentioned step-by-step feeding method, as a preferred method, the supporting rod 208 and the lower rolling roller 307 can also have a taper from the feeding direction to the discharging direction, and the two side-by-side lower rolling rollers 307 rotate in the same direction. The workpiece to be processed on the supporting rod 208 automatically slides to the processing position in front of the upper rolling roller 306 and the lower rolling roller 307 along with the taper of the supporting rod 208, and then the workpiece to be processed enters between the upper rolling roller 306 and the lower rolling roller 307 to be rolled, and automatically moves in the discharging direction under the influence of the taper of the lower rolling roller 307; in this way, the position of the upper rolling roller 306 is preset and fixed in advance according to the size of the workpiece to be processed, and the upper rolling roller 306 plays an auxiliary role in rolling the workpiece and auxiliary driving the workpiece to move toward the direction of the receiving mechanism 4 in this feeding method. In this method, the bracket 201 and the supporting rod 208 no longer need to feed by repeated rising and lateral movement, thereby improving work efficiency.

[0084] The radial spherical bearing outer shell rolling device and rolling method of the present application significantly improve production efficiency and reduce labor costs through a highly automated processing process; the unloading mechanism 1 and the feeding mechanism 2 work together to achieve continuous and stable transportation of workpieces, avoiding the problem of workpiece accumulation or insufficient supply; the entire device of the present application has a compact structure, integrated automation, simple operation, easy maintenance and servicing, and reduces long-term use costs.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A radial spherical plain bearing outer shell rolling device, characterized in that: include: A discharging mechanism, used for storing and discharging the radial spherical plain bearing workpieces to be processed; A feeding mechanism, arranged downstream of the discharging mechanism, for receiving the workpiece outputted by the discharging mechanism and conveying the workpiece to the rolling station in a step-by-step manner; A rolling mechanism, disposed downstream of the feeding mechanism, comprises a rolling station, at which the workpiece is subjected to rolling processing; The material collecting mechanism is arranged downstream of the rolling mechanism and is used for collecting the workpieces processed by the rolling mechanism.

2. The radial spherical plain bearing outer shell rolling device according to claim 1, characterized in that: The discharging mechanism comprises: a material waiting barrel, which is used to store radial spherical bearing workpieces. A push plate is arranged in the material waiting barrel, and the push plate pushes the workpiece to the discharging port, and the workpiece then rolls along the material trough to the feeding mechanism.

3. The radial spherical plain bearing outer shell rolling device according to claim 2, characterized in that: The bottom of the push plate is connected to the output end of the push cylinder, and the push cylinder drives the push plate to push the workpiece to the discharge port at the top of the barrel; After the workpiece reaches the discharge port at the top of the barrel, it rolls along the length of the trough due to its own gravity.

4. The radial spherical plain bearing outer shell rolling device according to claim 1, characterized in that: The feeding mechanism comprises a bracket, a first supporting cylinder, a second supporting cylinder, a traverse cylinder and a supporting rod; The supporting rod passes through multiple workpieces to assist in supporting them. The first supporting cylinder and the second supporting cylinder rise and fall synchronously to lift or put down the workpieces. The transverse cylinder pushes the bracket to move the workpieces transversely and reach the rolling station.

5. The radial spherical plain bearing outer shell rolling device according to claim 4, characterized in that: The feeding mechanism also includes a roller, which is arranged above the bracket and contacts with the upper surface of the bracket. Under the action of the transverse movement cylinder, the roller rolls synchronously when the bracket moves transversely.

6. The radial spherical plain bearing outer shell rolling device according to claim 4, characterized in that: The feeding mechanism also includes a return cylinder, which is used to push the supporting rod to return to its original position, so as to facilitate the workpiece in the trough to be put back on the supporting rod.

7. The radial spherical plain bearing outer shell rolling device according to claim 1, characterized in that: The rolling mechanism comprises a base, an intermediate pedestal is arranged on the top of the base, and the intermediate pedestal is fixedly assembled with the upper frame through vertical columns to form an overall outer frame of the rolling mechanism 3; A downward pressing driving mechanism is installed on the upper frame, and an output end of the downward pressing driving mechanism is connected to an upper rolling roller, and the upper rolling roller is arranged opposite to the lower rolling roller below.

8. The radial spherical plain bearing outer shell rolling device according to claim 1, characterized in that: The structure of the downward pressing driving mechanism is a hydraulic cylinder, an electric push rod or a pneumatic push cylinder; When the downward pressing driving mechanism is set as a hydraulic oil cylinder, a solenoid valve is connected, and the solenoid valve is controlled by a controller, thereby controlling the hydraulic oil cylinder to perform a downward pressing action; When the pressing driving mechanism is set as an electric push rod, an external controller is connected, and an electric signal is sent to the electric push rod through the controller, so that the electric push rod performs the pressing operation according to the command of the electric signal; When the downward pressing driving mechanism is set as a pneumatic push cylinder, an external controller is connected, and an electrical signal is sent to the pneumatic push rod through the controller, so that the pneumatic push rod performs the downward pressing operation according to the command of the electrical signal.

9. The radial spherical plain bearing outer shell rolling device according to claim 1, characterized in that: The material receiving mechanism comprises a material receiving frame and a material receiving barrel. The material receiving barrel is fixed on the material receiving frame and is used to receive and collect the processed workpieces output from the feeding mechanism.

10. A method for rolling a radial spherical plain bearing outer shell, characterized in that: The radial spherical plain bearing workpiece is rolled using the radial spherical plain bearing outer shell rolling device as described in any one of claims 1 to 9, and the outer shell of the radial spherical plain bearing workpiece is rolled after the process of workpiece preparation, automatic loading, step feeding, rolling processing and workpiece collection; The specific process of the rolling is as follows: Workpiece preparation: put the radial spherical plain bearing workpiece that has gone through the pressing process into the material barrel; Automatic loading, the push cylinder pushes the push plate upwards, and the radial spherical bearing workpiece is carried to the discharge port of the barrel to be loaded, and the workpiece rolls into the discharge chute under the action of gravity; Step feeding: according to the set parameters, the feeding mechanism is lifted after the upper roller completes a rolling operation; the first supporting cylinder and the second supporting cylinder on the bracket rise synchronously to lift the workpiece on the supporting rod, and under the push of the transverse cylinder, the bracket moves to the right to the processing position; then, the first supporting cylinder and the second supporting cylinder descend synchronously, and the workpiece on the supporting rod is at the rolling station, located between the upper roller and the lower roller, ready for rolling; During rolling process, the downward pressure driving mechanism works to drive the upper rolling roller to move downward and press the workpiece for rolling. The stress release effect is ensured by adjusting the rolling time and pressure of the upper rolling roller. After the workpieces are collected and rolled, the output end of the lower pressure drive mechanism is reset, the upper rolling roller is lifted, and the feeding mechanism repeats the cyclic stepping feeding action so that the processed workpieces fall into the collection bucket at the drop port at the end of the second support plate.

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