A sintered external friction sliding bearing roll forming device and its use method

Abstract

The present invention discloses a sintered external friction sliding bearing rolling forming device, comprising a body, a base plate and a mounting seat, wherein the base plate is mounted on the top of the body, a processing table is mounted on the top of the electric slider, a fixing frame is mounted on the top of the mounting seat, a bearing fixing assembly is arranged on the top of the fixing frame, and an electric telescopic rod 1 is mounted on the inner side of the mounting groove. The present invention installs an arc-shaped supporting plate on the output end of the electric telescopic rod 1, and the electric telescopic rod pushes the arc-shaped supporting plate to make it contact with the inner ring of the sliding bearing component and support the inner wall of the sliding bearing component, a distance sensor monitors the distance between the arc-shaped supporting plate and the inner ring of the sliding bearing component, a control module controls the electric telescopic rod 1 to stop working, a buffer spring ensures the stability of the arc-shaped supporting plate, and the supporting range of the arc-shaped supporting plate is adjusted according to the different specifications of the sliding bearing to meet the rolling processing requirements of bearings of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing, in particular to a rolling forming device for a sintered external friction sliding bearing and a use method thereof. Background Art

[0002] Sliding bearings refer to bearings that work under sliding friction. Sliding bearings work smoothly, reliably and quietly. However, sintered bearings are made by mixing solid lubricant powder with powdered bearing base material, forming, and heating them into sintered bearings. When they are matched with the shaft diameter, they are called sintered bearings. Sliding bearings are usually made by rolling forming. A thin-walled space is formed between the rolling head of a rotating roller and the mold, so that the excess blank of the sliding bearing blank is removed under the relative rotation of the rolling head and the mold.

[0003] The defects of the roll forming device in the prior art are:

[0004] 1. Patent document JP2021087992A discloses a large rivet forming device. "The present invention provides a large rivet rolling forming device. It includes a main body 10 and an operating space 11 provided in the main body. A rotating frame 13 is rotatably provided in the operating space. Positioning holes 14 that pass through the rotating frame vertically and symmetrically are provided in the rotating frame. A support rod 15 is provided in the positioning hole." This roll forming machine cannot limit and fix the workpiece. The position of the workpiece is easily offset during rolling processing, resulting in poor processing quality.

[0005] 2. Patent document CN217193672U discloses a bearing rolling device, "including a drilling machine, on which a platform is slidably mounted, on which a No. 1 base and a No. 2 base are provided, which are distributed in parallel in the horizontal direction, and the No. 1 base and the No. 2 base are both equipped with support rods with set bearings and sliding spaces, and a pressure rod connected to the power source of the drilling machine is axially inserted in the sliding space of the support rod; the pressure rods are provided with rolling devices for rolling the bearings, and the No. 2 base is provided with a bearing portion that supports the rolling surface of the bearing and assists in maintaining the stability of the bearing surface to be rolled. The utility model supports and limits the position of the bearing through the support rod, and cooperates with the bushing to roll the bearing, effectively maintaining the stability of the rolling, and at the same time supports the end face of the bearing rolled on the No. 1 base through the bearing portion, and assists in maintaining the stability of the rolled surface, preventing the bearing from shaking during rolling, thereby improving the rolling efficiency and rolling reliability." The use specifications of the support rods of the rolling device are fixed, and the use range of the support rods cannot be adjusted according to different bearing specifications, and cannot meet the rolling processing requirements of bearings of different specifications.

[0006] 3. Patent document CN214136543U discloses a roll-forming device for ceramic processing, which "comprises a processing table, a ceramic fixture, and a roll-forming head. The middle end of the processing table is provided with a ceramic fixture, and the outer side of the upper end of the ceramic fixture is provided with an outer ring gear. The outer surface of the outer ring gear is connected to a drive gear, and the middle end of the drive gear is connected to a first motor, and the first motor is fixed to the bottom surface of the processing table. The right end of the processing table is provided with a first support plate, and the top surface of the first support plate is fixedly provided with a second motor. One end of the second motor is connected to a transmission chain, and the other end of the transmission chain is connected to a screw. The roll-forming device for ceramic processing can adjust the vertical height of the roll-forming head through threaded transmission, and is connected to the cylinder by a connecting seat rotating seat. The roll-forming head can be adjusted in tilt angle by telescopic rotation and sliding, thereby increasing the flexibility of the forming structure." The roll-forming head of this roll-forming device and the processing table do not have a fixed connection structure. The roll-forming head is prone to shaking during operation, which shortens the service life of the roll-forming head and cannot ensure the stability of the roll-forming device during use.

[0007] 4. Patent document CN212146880U discloses a roll forming machine for ceramic processing that automatically cuts off excess material. It "includes a rolling motor, a rolling shaft, a support frame, a fixed vertical arm, a residual material cutting mechanism, a roll forming head, a forming cavity, a processing box, and a control panel. The front side of the support frame is provided with a roll forming head, and the rear side is provided with a fixed vertical arm. The roll forming head is connected to the rolling motor through a rolling shaft. One side of the roll forming head is provided with a residual material cutting mechanism, which is connected to the support frame and contacts a side wall of the roll forming head. In the process of roll forming of ceramic processing, the utility model generates excess embryo mud. The excess excess material is removed by providing a residual material cutting mechanism, and a baffle is provided on the inner side of the processing box to prevent the excess material from splashing out of the processing box." The forming cavity and the processing box of the roll forming machine are fixedly connected, and the forming cavity cannot be quickly replaced according to the actual processing requirements of the workpiece, resulting in low roll forming efficiency. Summary of the Invention

[0008] The object of the present invention is to provide a sintered external friction sliding bearing roll forming device and a method of using the same to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sintered external friction sliding bearing rolling forming device, comprising a body, a base plate and a mounting seat, the top of the body is mounted with a base plate, the top of the base plate is mounted with a slide rail seat, the top of the slide rail seat is embedded with an electric slider, the top of the electric slider is mounted with a processing table, the top of the processing table is mounted with a mounting seat, the top of the mounting seat is mounted with a fixing frame, the top of the fixing frame is provided with a bearing fixing assembly, the bearing fixing assembly comprises a support column and a fixing plate, the outer side of the support column is mounted with a fixing plate, the outer side of the support column is provided with a mounting groove, the inner side of the mounting groove is mounted with an electric telescopic rod 1, and the output end of the electric telescopic rod 1 is mounted with an arc-shaped top support plate.

[0010] Preferably, a threaded sleeve is installed at the bottom end of the support column, a sliding groove is symmetrically opened on the outside of the support column, a slide is embedded in the inner side of the sliding groove, a pressing spring is installed on the inner wall of the sliding groove, and the outer end of the pressing spring is connected to the inner side of the slide, a clamping column is installed on the outside of the slide, and the clamping column is inserted into the inner side of the operating hole, a damper is installed on the outside of the support column, a buffer spring is provided on the outside of the damper, and the outer end of the buffer spring is connected to the inner side of the arc-shaped top support plate, and a distance sensor is installed on the top of the arc-shaped top support plate.

[0011] Preferably, a roll-forming mechanism is installed on the back of the body, and the roll-forming mechanism includes a bracket and a mounting frame, a threaded rod is installed on the inner side of the bracket, an adjusting motor is installed on the top of the bracket, and the output end of the adjusting motor is connected to the input end of the threaded rod, a bearing block is installed on the outer side of the threaded rod, a connecting frame is installed on the front of the bearing block, a mounting frame is installed on the outer side of the connecting frame, a driving motor is installed on the top of the mounting frame, the output end of the driving motor passes through the top of the connecting frame and a roll-forming head is installed, and a positioning column is installed on the bottom of the roll-forming head through a bearing.

[0012] Preferably, a positioning hole is provided at the top of the support column, and the positioning column is engaged with the inner side of the positioning hole, a fixing frame is installed at the top of the positioning hole, a stud is installed through the outer side of the fixing frame, a reinforcement ring is installed at the output end of the stud, and a wear-resistant layer is provided on the inner side of the reinforcement ring.

[0013] Preferably, the threaded sleeve and the internal thread realize the connection between the bearing fixing assembly and the fixing frame through threaded cooperation, the outer end of the bearing block is embedded in the inner side of the bracket, and the reinforcement ring is used to limit the positioning column.

[0014] Preferably, a foot pad is installed at the bottom of the body, a chip collecting frame is installed at the top of the body, a chip collecting cover is installed on the inner side of the chip collecting frame, the output end of the chip collecting frame is connected to the chip conveying pipe, a controller is installed at the top of the body, a control module is installed inside the controller, the control module is used to drive and control the roll forming mechanism and the bearing fixing assembly, a receiving module is installed inside the controller, and the output end of the receiving module is connected to the input end of the control module, the input end of the receiving module is connected to the output end of the distance sensor, and the receiving module is used to receive the output signal of the distance sensor.

[0015] Preferably, a limit block is installed on the top of the slide rail seat, and the limit block is used to limit the electric slider. An operating hole is opened through the outer side of the fixing frame, and an internal thread is provided on the inner wall of the fixing frame.

[0016] Preferably, the top of the fixed plate is equipped with an electric telescopic rod 2, the output end of the electric telescopic rod 2 is equipped with a placement plate, and the placement plate is located outside the support column, and a limiting groove is provided on the top of the placement plate.

[0017] Preferably, the working steps of the roll forming device are as follows:

[0018] S1. First, place the sliding bearing to be processed on the placement plate. The limiting groove matches the size of the sliding bearing to limit it and achieve preliminary fixation of the sliding bearing. The electric telescopic rod works to push the placement plate, and the placement plate rises so that the inner ring of the sliding bearing is located outside the top of the support column.

[0019] S2. The electric slider moves on the slide rail seat to drive the processing table to adjust its position in the horizontal direction. When the bearing fixing assembly moves to the bottom of the roll forming head, the roll forming mechanism starts to operate. The motor is adjusted to drive the threaded rod to rotate. The threaded rod rotates to make the bearing block slide on the inside of the bracket. The bearing block drives the roll forming head to move downward until the positioning column is inserted into the inside of the positioning hole.

[0020] S3, the driving motor drives the rolling forming head to rotate and roll the sliding bearing parts, and the external negative pressure device operates to absorb the debris generated during the rolling process through the chip collection cover, and the absorbed debris is discharged from the chip conveying pipe to the external collection box through the chip collection frame;

[0021] S4. When the support column is damaged or the adjustment range of the arc-shaped top support plate does not match the specifications of the sliding bearing, replace the bearing fixing assembly. Press the clamping column to move the slide plate inside the slide groove to squeeze the pressing spring, release the limit of the operating hole on the clamping column, rotate the support column to release the threaded connection between the threaded sleeve and the fixing frame, and remove the bearing fixing assembly from the top of the fixing frame for replacement.

[0022] Preferably, the step S1 further includes the following steps:

[0023] S11. The controller controls the operation of the electric telescopic rod 1. The electric telescopic rod pushes the arc-shaped supporting plate to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing. The distance sensor monitors the distance between the arc-shaped supporting plate and the inner ring of the sliding bearing. When the distance reaches the supporting fixed position, the distance sensor transmits a signal to the controller receiving module. The control module controls the state of the electric telescopic rod 1 to stop working. The buffer spring ensures the supporting stability of the arc-shaped supporting plate.

[0024] In step S2, the following steps are also included:

[0025] S21. The staff rotates the stud to screw the reinforcement ring inward, so that the wear-resistant layer contacts the outer side of the positioning column, and the reinforcement ring clamps the positioning column;

[0026] In step S3, the following steps are also included:

[0027] S31. After the rolling process of the sliding bearing is completed, the electric telescopic rod 1 and the electric telescopic rod 2 are reset in sequence to release the limit clamping of the sliding bearing, and the staff performs the unloading operation on the processed sliding bearing.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention installs a fixed plate on the outer side of the support column, places the sliding bearing to be processed on the placement plate, and limits the sliding bearing by matching the size of the limiting groove with the sliding bearing to achieve preliminary fixation of the sliding bearing. The electric telescopic rod pushes the placement plate, and the placement plate rises to position the inner ring of the sliding bearing outside the top of the support column. The bottom of the sliding bearing is limited and fixed to prevent the position of the sliding bearing from shifting during rolling processing, thereby improving the rolling processing quality of the sliding bearing.

[0030] 2. The present invention installs an arc-shaped supporting plate at the output end of the electric telescopic rod. The electric telescopic rod pushes the arc-shaped supporting plate to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing. The distance sensor monitors the distance between the arc-shaped supporting plate and the inner ring of the sliding bearing. When the distance reaches the fixed supporting position, the distance sensor transmits the signal to the controller receiving module. The control module controls the state of the electric telescopic rod to stop working. The buffer spring ensures the stability of the arc-shaped supporting plate. The supporting range of the arc-shaped supporting plate is adjusted according to the different specifications of the sliding bearing to meet the rolling processing requirements of bearings of different specifications.

[0031] 3. The present invention installs a fixing frame on the top of the positioning hole. When the bearing fixing assembly moves to the bottom of the rolling forming head, the rolling forming mechanism starts to operate, and the motor is adjusted to drive the threaded rod to rotate. The rotation of the threaded rod causes the bearing block to slide on the inside of the bracket. The bearing block drives the rolling forming head to move downward until the positioning column is inserted into the inside of the positioning hole. The staff rotates the stud to screw the reinforcement ring inward, and the reinforcement ring limits the positioning column. The connection structure between the rolling forming head and the support column reduces the shaking generated when the rolling forming head is working, extends the service life of the rolling forming head, and ensures the stability of the rolling forming device during use.

[0032] 4. The present invention provides a bearing fixing assembly at the top of the fixing frame. When the support column is damaged or the adjustment range of the arc-shaped top support plate does not conform to the specifications of the sliding bearing, the bearing fixing assembly is replaced. The clamping column is pressed to move the slide plate inside the slide groove to squeeze the pressing spring, release the limit of the clamping column on the operating hole, rotate the support column to release the threaded connection between the threaded sleeve and the fixing frame, and take the bearing fixing assembly out from the top of the fixing frame for replacement. The support column can be quickly replaced according to the actual processing requirements of the sliding bearing, thereby improving the roll forming efficiency of the sliding bearing and increasing the application range of the roll forming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing frame of the present invention;

[0035] Figure 3 It is a schematic diagram of the three-dimensional structure of the bearing fixing assembly of the present invention;

[0036] Figure 4 This is a schematic diagram of the internal structure of the support column of the present invention from a top view;

[0037] Figure 5 This is a schematic diagram of the support column installation structure of the present invention;

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the roll forming mechanism of the present invention;

[0039] Figure 7 This is an enlarged structural diagram of point A of the present invention;

[0040] Figure 8 A diagram of the controller system of the present invention;

[0041] Figure 9 It is the workflow diagram of the present invention.

[0042] In the figure: 1. Machine body; 2. Bottom plate; 3. Mounting seat; 4. Bearing fixing assembly; 5. Roll forming mechanism; 6. Fixing plate; 7. Positioning hole; 8. Foot pad; 9. Chip collecting frame; 10. Chip collecting cover; 11. Chip conveying pipe; 12. Controller; 13. Slide rail seat; 14. Electric slider; 15. Limit block; 16. Processing table; 17. Fixing frame; 18. Operation hole; 19. Internal thread; 20. Support column; 21. Threaded sleeve; 22. Slide groove; 23. Slide plate; 24. Press spring; 25. Column; 26. Mounting slot; 27. Electric telescopic rod 1; 28. Arc-shaped top support plate; 29. Damper; 30. Buffer spring; 31. Bracket; 32. Threaded rod; 33. Adjustment motor; 34. Load-bearing block; 35. Connecting frame; 36. Mounting frame; 37. Drive motor; 38. Roll-forming head; 39. Positioning column; 40. Electric telescopic rod 2; 41. Placement plate; 42. Limiting groove; 43. Distance sensor; 44. Fixing frame; 45. Stud; 46. Reinforcement ring; 47. Wear-resistant layer. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a movable connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] See also Figure 1 、 Figure 2 and Figure 8 , an embodiment provided by the present invention: a sintered external friction sliding bearing roll forming device and a method of using the same;

[0047] The machine body 1 comprises a body 1, a base plate 2 and a processing table 16. A foot pad 8 is installed at the bottom of the machine body 1, a chip collecting frame 9 is installed at the top of the machine body 1, a chip collecting cover 10 is installed on the inner side of the chip collecting frame 9, the output end of the chip collecting frame 9 is connected to the chip conveying pipe 11, a controller 12 is installed on the top of the machine body 1, a control module is installed inside the controller 12, the control module is used to drive and control the roll forming mechanism 5 and the bearing fixing assembly 4, a receiving module is installed inside the controller 12, and the output end of the receiving module is connected to the input end of the control module, the input end of the receiving module is connected to the output end of the distance sensor 43, the receiving module is used to receive the output signal of the distance sensor 43, the electric telescopic rod 27 is controlled to work by the controller 12, the distance sensor 43 monitors the distance between the arc-shaped top support plate 28 and the inner ring of the sliding bearing, and the distance sensor 43 transmits the signal to the controller 1 after the distance reaches the top support fixed position. 2 receiving module, the control module controls the state of the electric telescopic rod 27 to stop working, the external negative pressure suction device is connected to the output end of the chip conveying pipe 11, and the external negative pressure device operates to absorb the debris generated during the rolling process through the chip collecting cover 10, and the absorbed debris is discharged from the chip conveying pipe 11 to the external collection box through the chip collecting frame 9. A base plate 2 is installed on the top of the body 1, and a slide rail seat 13 is installed on the top of the base plate 2. An electric slider 14 is embedded and installed on the top of the slide rail seat 13. A processing table 16 is installed on the top of the electric slider 14. A limit block 15 is installed on the top of the slide rail seat 13, and the limit block 15 is used to limit the electric slider 14. The electric slider 14 runs on the slide rail seat 13 and moves to drive the processing table 16 to adjust the position in the horizontal direction. The limit block 15 limits the moving position of the electric slider 14. When the bearing fixing assembly 4 moves to just below the roll forming head 38, the roll forming mechanism 5 starts to operate.

[0048] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , a sintered external friction sliding bearing roll forming device and its use method;

[0049] It includes a mounting seat 3, a bearing fixing assembly 4 and a fixing plate 6. The top of the processing table 16 is equipped with a mounting seat 3, and the top of the mounting seat 3 is equipped with a fixing frame 17. The outer side of the fixing frame 17 is penetrated by an operating hole 18, and the inner wall of the fixing frame 17 is provided with an internal thread 19. The top of the fixing frame 17 is provided with a bearing fixing assembly 4. The bearing fixing assembly 4 includes a support column 20 and a fixing plate 6. The outer side of the support column 20 is provided with a mounting groove 26, and the inner side of the mounting groove 26 is installed with an electric telescopic rod 27. The output end of the electric telescopic rod 27 is installed with an arc-shaped top support plate 28. The bottom end of the support column 20 is equipped with a threaded sleeve 21. The threaded sleeve 21 and the internal thread 19 are threadedly matched to realize the connection between the bearing fixing assembly 4 and the fixing frame 17. A slide groove 22 is symmetrically provided on the outside of the support column 20, and a slide plate 23 is fitted on the inside of the slide groove 22. A pressure spring 24 is installed on the inner wall of the slide groove 22, and the outer end of the pressure spring 24 is connected to the inner side of the slide plate 23. A clamping column 25 is installed on the outside of the slide plate 23, and the clamping column 25 is inserted into the inner side of the operating hole 18. A damper 29 is installed on the outside of the support column 20, and a buffer spring 30 is provided on the outside of the damper 29, and the outer end of the buffer spring 30 is connected to the inner side of the arc-shaped top support plate 28. A distance sensor 43 is installed on the top of the arc-shaped top support plate 28. The mounting seat 3 is mounted on the top of the processing table 16 by bolts. The fixing bracket 17 ensures the stability of the bearing fixing assembly 4 during installation. If the support column 20 is damaged or the arc-shaped top support plate 2 When the adjustment range of 8 does not conform to the specifications of the sliding bearing, the bearing fixing assembly 4 should be replaced. Press the clamping column 25 to move the slide plate 23 inside the slide groove 22 to squeeze the pressing spring 24, release the limit of the clamping column 25 by the operating hole 18, rotate the support column 20 to release the threaded connection between the threaded sleeve 21 and the fixing frame 17, and take out the bearing fixing assembly 4 from the top of the fixing frame 17 for replacement. The support column 20 can be quickly replaced according to the actual processing requirements of the sliding bearing. The electric telescopic rod 27 pushes the arc-shaped supporting plate 28 to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing. The buffer spring 30 ensures the stability of the arc-shaped supporting plate 28, and the damper 29 prevents the buffer spring 30 from shaking back and forth. The supporting range of the arc-shaped supporting plate 28 is adjusted according to the different specifications of the sliding bearing. A fixed plate 6 is installed on the outer side of the support column 20, and an electric telescopic rod 2 40 is installed on the top of the fixed plate 6. A placement plate 41 is installed on the output end of the electric telescopic rod 2 40, and the placement plate 41 is located on the outer side of the support column 20. A limiting groove 42 is provided on the top of the placement plate 41. The fixed plate 6 provides an installation position for the electric telescopic rod 2 40. The sliding bearing to be processed is placed on the placement plate 41. The limiting groove 42 matches the size of the sliding bearing to limit it to achieve preliminary fixation of the sliding bearing. The electric telescopic rod 2 40 pushes the placement plate 41 when it works, and the placement plate 41 rises and causes the inner ring of the sliding bearing to be located on the outer side of the top of the support column 20.

[0050] See also Figure 1 、 Figure 3 、 Figure 6 and Figure 7 , a sintered external friction sliding bearing roll forming device and its use method;

[0051] The cam 36 is provided with a screw threaded rod 32 and a screw threaded rod 32 connected to the cam 36. The cam 36 is provided with a screw threaded rod 32 and a screw threaded rod 32 connected to the cam 36. The cam 36 is provided with a screw threaded rod 32 and a screw threaded rod 32 connected to the cam 36. The cam 36 is provided with a screw threaded rod 32 and a screw threaded rod 32 connected to the cam 36. The cam 36 is provided with a screw threaded rod 32 and a screw threaded rod 32 connected to the cam 36. 2 rotates, the threaded rod 32 rotates to make the bearing block 34 slide inside the bracket 31, and the bearing block 34 drives the roll forming head 38 to move downward until the positioning column 39 is inserted into the inner side of the positioning hole 7. The driving motor 37 runs and drives the roll forming head 38 to rotate to roll the sliding bearing part. The top of the support column 20 is provided with a positioning hole 7, and the positioning column 39 is engaged with the inner side of the positioning hole 7. The top of the positioning hole 7 is installed with a fixing frame 44, and the outer side of the fixing frame 44 is penetrated and installed with a stud 45. The stud A reinforcement ring 46 is installed at the output end of 45. The reinforcement ring 46 is used to limit the positioning column 39. A wear-resistant layer 47 is provided on the inner side of the reinforcement ring 46. After the positioning column 39 is inserted into the inner side of the positioning hole 7, the staff rotates the stud 45 to screw the reinforcement ring 46 inward. The reinforcement ring 46 limits and clamps the positioning column 39. The connection structure between the roll-forming head 38 and the support column 20 reduces the shaking generated when the roll-forming head 38 is working, and the wear-resistant layer 47 extends the service life of the reinforcement ring 46.

[0052] The working steps of the roll forming device are as follows:

[0053] S1. First, place the sliding bearing to be processed on the placement plate 41. The limiting groove 42 matches the size of the sliding bearing to limit it and achieve preliminary fixation of the sliding bearing. The electric telescopic rod 2 40 works to push the placement plate 41. The placement plate 41 rises and the inner ring of the sliding bearing is located outside the top of the support column 20.

[0054] S2. The electric slider 14 moves on the slide rail seat 13 and drives the processing table 16 to adjust the position in the horizontal direction. When the bearing fixing assembly 4 moves to the position just below the roll forming head 38, the roll forming mechanism 5 starts to operate. The adjustment motor 33 drives the threaded rod 32 to rotate. The rotation of the threaded rod 32 causes the bearing block 34 to slide inside the bracket 31. The bearing block 34 drives the roll forming head 38 to move downward until the positioning column 39 is inserted into the inner side of the positioning hole 7.

[0055] S3, the driving motor 37 drives the rolling forming head 38 to rotate and roll the sliding bearing part, and the external negative pressure device operates to absorb the debris generated during the rolling process through the chip collecting cover 10, and the absorbed debris is discharged from the chip collecting frame 9 to the external collection box through the chip conveying pipe 11;

[0056] S4. When the support column 20 is damaged or the adjustment range of the arc-shaped top support plate 28 does not conform to the specifications of the sliding bearing, the bearing fixing assembly 4 should be replaced. Press the clamping column 25 to move the slide plate 23 inside the slide groove 22 to squeeze the pressing spring 24, release the limit of the operating hole 18 on the clamping column 25, rotate the support column 20 to contact the threaded connection between the threaded sleeve 21 and the fixing frame 17, and remove the bearing fixing assembly 4 from the top of the fixing frame 17 for replacement.

[0057] In step S1, the following steps are also included:

[0058] S11. The controller 12 controls the electric telescopic rod 27 to operate. The electric telescopic rod 27 pushes the arc-shaped supporting plate 28 to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing. The distance sensor 43 monitors the distance between the arc-shaped supporting plate 28 and the inner ring of the sliding bearing. When the distance reaches the supporting fixed position, the distance sensor 43 transmits a signal to the receiving module of the controller 12. The control module controls the state of the electric telescopic rod 27 to stop working. The buffer spring 30 ensures the supporting stability of the arc-shaped supporting plate 28.

[0059] In step S2, the following steps are also included:

[0060] S21, the staff rotates the stud 45 to screw the reinforcement ring 46 inward, so that the wear-resistant layer 47 contacts the outer side of the positioning column 39, and the reinforcement ring 46 clamps the positioning column 39;

[0061] In step S3, the following steps are also included:

[0062] S31. After the rolling process of the sliding bearing is completed, the electric telescopic rod 1 27 and the electric telescopic rod 2 40 are reset in sequence to release the limit clamping of the sliding bearing, and the staff performs the blanking operation on the processed sliding bearing.

[0063] Working principle: When using this device, first place the sliding bearing to be processed on the placement plate 41, and the limiting groove 42 matches the size of the sliding bearing to limit it to achieve preliminary fixation of the sliding bearing. The electric telescopic rod 240 works to push the placement plate 41, and the placement plate 41 rises and makes the inner ring of the sliding bearing be located outside the top of the support column 20. The electric telescopic rod 1 27 is controlled by the controller 12 to work. The electric telescopic rod 1 27 pushes the arc-shaped supporting plate 28 to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing. The distance sensor 43 monitors the distance between the arc-shaped supporting plate 28 and the inner ring of the sliding bearing. After the distance reaches the supporting fixed position, the distance sensor 43 transmits a signal to the receiving module of the controller 12. The control module controls the state of the electric telescopic rod 1 27 to stop working. The buffer spring 30 ensures the supporting stability of the arc-shaped supporting plate 28.

[0064] The electric slider 14 moves on the slide rail seat 13 and drives the processing table 16 to adjust the position in the horizontal direction. When the bearing fixing assembly 4 moves to the bottom of the roll forming head 38, the roll forming mechanism 5 starts to run, and the adjustment motor 33 drives the threaded rod 32 to rotate. The rotation of the threaded rod 32 causes the bearing block 34 to slide inside the bracket 31. The bearing block 34 drives the roll forming head 38 to move downward until the positioning column 39 is inserted into the inner side of the positioning hole 7. The staff rotates the stud 45 to screw the reinforcement ring 46 inward, and the wear-resistant layer 47 and the positioning column 39 are pressed together. The outer side of the sliding bearing is in contact with the outer side, the reinforcement ring 46 limits and clamps the positioning column 39, the drive motor 37 runs to drive the rolling forming head 38 to rotate and roll the sliding bearing part, the external negative pressure equipment runs to absorb the debris generated in the rolling process through the chip collecting cover 10, and the absorbed debris is discharged from the chip conveying pipe 11 to the external collection box through the chip collecting frame 9. After the rolling process of the sliding bearing part is completed, the electric telescopic rod 1 27 and the electric telescopic rod 2 40 are reset in sequence to release the limit clamping of the sliding bearing part, and the staff performs the unloading operation on the processed sliding bearing part;

[0065] When the support column 20 is damaged or the adjustment range of the arc-shaped top support plate 28 does not match the specifications of the sliding bearing, the bearing fixing assembly 4 should be replaced. Press the clamping column 25 to move the slide plate 23 inside the slide groove 22 to squeeze the pressing spring 24, release the limit of the clamping column 25 by the operating hole 18, rotate the support column 20 to contact the threaded connection between the threaded sleeve 21 and the fixing frame 17, and remove the bearing fixing assembly 4 from the top of the fixing frame 17 for replacement.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sintered external friction sliding bearing roll forming device, comprising a body (1), a base plate (2) and a mounting seat (3), characterized in that: The top of the body (1) is provided with a base plate (2), the top of the base plate (2) is provided with a slide rail seat (13), the top of the slide rail seat (13) is fitted with an electric slider (14), the top of the electric slider (14) is provided with a processing table (16), the top of the processing table (16) is provided with a mounting seat (3), the top of the mounting seat (3) is provided with a fixing frame (17), the top of the fixing frame (17) is provided with a bearing fixing assembly (4), the bearing fixing assembly (4) comprises a support column (20) and a fixing plate (6), the outer side of the support column (20) is provided with a fixing plate (6), the outer side of the support column (20) is provided with a mounting groove (26), the inner side of the mounting groove (26) is provided with an electric telescopic rod (27), the output end of the electric telescopic rod (27) is provided with an arc-shaped top support plate (28); A roll forming mechanism (5) is installed on the back of the body (1), and the roll forming mechanism (5) includes a bracket (31) and a mounting frame (36). A threaded rod (32) is installed on the inner side of the bracket (31), an adjusting motor (33) is installed on the top of the bracket (31), and the output end of the adjusting motor (33) is connected to the input end of the threaded rod (32), a bearing block (34) is installed on the outer side of the threaded rod (32), a connecting frame (35) is installed on the front side of the bearing block (34), a mounting frame (36) is installed on the outer side of the connecting frame (35), a driving motor (37) is installed on the top of the mounting frame (36), the output end of the driving motor (37) passes through the top of the connecting frame (35), and a roll forming head (38) is installed, and a positioning column (39) is installed on the bottom of the roll forming head (38) through a bearing; A positioning hole (7) is provided at the top of the support column (20), and the positioning column (39) is engaged with the inner side of the positioning hole (7). A fixing frame (44) is installed at the top of the positioning hole (7), a stud (45) is installed through the outer side of the fixing frame (44), a reinforcement ring (46) is installed at the output end of the stud (45), and a wear-resistant layer (47) is provided on the inner side of the reinforcement ring (46); The top of the fixed plate (6) is equipped with an electric telescopic rod 2 (40), and the output end of the electric telescopic rod 2 (40) is equipped with a placement plate (41), and the placement plate (41) is located outside the support column (20), and a limiting groove (42) is provided on the top of the placement plate (41).

2. The roll forming device for a sintered external friction sliding bearing according to claim 1, characterized in that: A threaded sleeve (21) is installed at the bottom end of the support column (20), a slide groove (22) is symmetrically opened on the outside of the support column (20), a slide plate (23) is embedded and installed on the inside of the slide groove (22), a pressing spring (24) is installed on the inner wall of the slide groove (22), and the outer end of the pressing spring (24) is connected to the inner side of the slide plate (23), a clamping column (25) is installed on the outside of the slide plate (23), and the clamping column (25) is plugged into the inner side of the operating hole (18), a damper (29) is installed on the outside of the support column (20), a buffer spring (30) is provided on the outside of the damper (29), and the outer end of the buffer spring (30) is connected to the inner side of the arc-shaped top support plate (28), and a distance sensor (43) is installed on the top of the arc-shaped top support plate (28).

3. The roll forming device for a sintered external friction sliding bearing according to claim 2, characterized in that: The threaded sleeve (21) and the internal thread (19) are threadedly matched to realize the connection between the bearing fixing assembly (4) and the fixing frame (17). The outer end of the bearing block (34) is embedded and installed on the inner side of the bracket (31). The reinforcement ring (46) is used to limit the positioning column (39).

4. The roll forming device for a sintered external friction sliding bearing according to claim 3, characterized in that: A foot pad (8) is installed at the bottom of the body (1), a chip collecting frame (9) is installed at the top of the body (1), a chip collecting cover (10) is installed on the inner side of the chip collecting frame (9), an output end of the chip collecting frame (9) is connected to a chip conveying pipe (11), a controller (12) is installed at the top of the body (1), a control module is installed inside the controller (12), the control module is used to drive and control the roll forming mechanism (5) and the bearing fixing assembly (4), a receiving module is installed inside the controller (12), and the output end of the receiving module is connected to the input end of the control module, the input end of the receiving module is connected to the output end of the distance sensor (43), and the receiving module is used to receive the output signal of the distance sensor (43).

5. The roll forming device for a sintered external friction sliding bearing according to claim 4, characterized in that: A limiting block (15) is installed on the top of the slide rail seat (13), and the limiting block (15) is used to limit the electric slider (14). An operating hole (18) is opened through the outer side of the fixing frame (17), and an internal thread (19) is provided on the inner wall of the fixing frame (17).

6. The method for using the roll forming device for a sintered external friction sliding bearing according to claim 5, characterized in that: The working steps of the roll forming device are as follows: S1. First, place the sliding bearing to be processed on the placement plate (41). The limiting groove (42) matches the size of the sliding bearing to limit it and realize the preliminary fixation of the sliding bearing. The second electric telescopic rod (40) works to push the placement plate (41). The placement plate (41) rises and makes the inner ring of the sliding bearing be located outside the top of the support column (20); S2, the electric slider (14) moves on the slide rail seat (13) to drive the processing table (16) to adjust the position in the horizontal direction, and when the bearing fixing assembly (4) moves to the bottom of the roll forming head (38), the roll forming mechanism (5) starts to operate, and the adjustment motor (33) drives the threaded rod (32) to rotate. The threaded rod (32) rotates to make the bearing block (34) slide inside the bracket (31), and the bearing block (34) drives the roll forming head (38) to move downward until the positioning column (39) is inserted into the inner side of the positioning hole (7); S3, the driving motor (37) drives the rolling forming head (38) to rotate and roll the sliding bearing part, and the external negative pressure device operates to absorb the debris generated during the rolling process through the chip collecting cover (10), and the absorbed debris is discharged from the chip conveying pipe (11) to the external collection box through the chip collecting frame (9); S4. When the support column (20) is damaged or the adjustment range of the arc-shaped top support plate (28) does not conform to the specifications of the sliding bearing, the bearing fixing assembly (4) is replaced, the clamping column (25) is pressed to move the slide plate (23) inside the slide groove (22) to squeeze the pressing spring (24), and the limit of the operating hole (18) on the clamping column (25) is released. The support column (20) is rotated to contact the threaded connection between the threaded sleeve (21) and the fixing frame (17), and the bearing fixing assembly (4) is removed from the top of the fixing frame (17) for replacement.

7. The method for using the roll forming device for a sintered external friction sliding bearing according to claim 6, characterized in that: In the step S1, the following steps are also included: S11, the controller (12) controls the electric telescopic rod (27) to work, the electric telescopic rod (27) pushes the arc-shaped supporting plate (28) to make it contact with the inner ring of the sliding bearing and support the inner wall of the sliding bearing, the distance sensor (43) monitors the distance between the arc-shaped supporting plate (28) and the inner ring of the sliding bearing, and when the distance reaches the supporting fixed position, the distance sensor (43) transmits a signal to the receiving module of the controller (12), and the control module controls the state of the electric telescopic rod (27) to stop working, and the buffer spring (30) ensures the supporting stability of the arc-shaped supporting plate (28); In step S2, the following steps are also included: S21, the staff rotates the stud (45) to screw the reinforcement ring (46) inward, the wear-resistant layer (47) contacts the outer side of the positioning column (39), and the reinforcement ring (46) clamps the positioning column (39) in a limited position; In step S3, the following steps are also included: S31. After the rolling process of the sliding bearing is completed, the electric telescopic rod 1 (27) and the electric telescopic rod 2 (40) are reset in sequence to release the limit clamping of the sliding bearing, and the staff performs the unloading operation on the processed sliding bearing.

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