Roller body press fitting tool

Abstract

The invention discloses a roller body press-fitting tool which comprises a mounting bracket and a station turntable which play a mounting and supporting role, and a press-fitting machine and an oil coating device which are respectively connected to the mounting bracket. The station rotating disc is installed on the installation support and used for rotating by a set angle at intervals under the action of driving force, and the station rotating disc is further provided with a plurality of groove positions which are sequentially arranged at intervals in the circumferential direction of the station rotating disc and used for installing and positioning the roller shaft and the ring piece to be pressed. The press-fitting machine is used for pressing the to-be-press-fitted ring piece which is located in the groove position below the press-fitting machine and loosely arranged on the outer circle of the roller shaft in a sleeving mode to the outer circle of the roller shaft in the downward moving process, and the oiling device is connected with the press-fitting machine to act so that lubricating grease stored in the oiling device can be automatically brushed to the outer circle of the roller shaft in the groove position below the oiling device under the downward moving action of the press-fitting machine. According to the tool, the assembling efficiency and the assembling qualification rate can be greatly improved, the requirement for batch production is met, the overall performance of the tool is improved, the service life of the tool is prolonged, and lubricating grease can be automatically brushed.

Description

Technical Field

[0001] The invention relates to the technical field of production and assembly of railway turnout roller devices, in particular to a roller body press-fitting tool. Background Art

[0002] The turnout roller device is a key device specially used in railway turnout systems. It is used to guide the smooth transition of train wheels in the turnout area. The traditional method reduces the switch resistance of the point rail by applying oil lubrication between the point rail and the slide bed. The roller device replaces the traditional lubrication method with rolling friction between the roller and the point rail, significantly improving the efficiency and safety of turnout switching.

[0003] At present, domestic general-speed roller devices are mainly imported, and the lack of mature domestic production technology has led to low production efficiency, non-standard operation, and unstable product quality. The roller body is the core component of the roller device, and its assembly quality directly affects the performance of the entire roller device. In the existing process, the roller body is usually assembled by hammering with a rubber hammer, which has the following problems:

[0004] ①The qualified rate of assembly is low, which may easily cause the roller body to be damaged or assembled improperly;

[0005] ② Low production efficiency, making it difficult to meet mass production needs;

[0006] ③The product quality is unstable, which affects the overall performance and service life of the roller device.

[0007] Therefore, it is of great significance to design a roller body assembly tool that can improve assembly efficiency and ensure product quality. Summary of the Invention

[0008] The present invention provides a roller body pressing tool to solve the technical problems existing in the existing manual pressing, such as low assembly qualification rate, easy damage to the roller body or improper assembly, low production efficiency, difficulty in meeting mass production needs, unstable product quality, and affecting the overall performance and service life of the roller device.

[0009] The technical solution adopted in the present invention is as follows:

[0010] A roller body pressing tool is used to press multiple ring parts to be pressed onto the outer circle of the roller shaft to assemble and form the roller body, and at the same time, grease is applied to the roller shaft during the pressing process. The roller body pressing tool comprises: a mounting bracket and a work station turntable that serve as mounting supports, and a pressing machine and an oiling device respectively connected to the mounting bracket; the work station turntable is mounted on the mounting bracket for rotating at intervals to set angles under the action of a driving force, and the work station turntable is also provided with multiple slots arranged in sequence along its circumference for installation and positioning of the roller shaft and the ring parts to be pressed; the pressing machine is used to press the ring parts to be pressed that are loosely sleeved on the outer circle of the roller shaft and are located in the slot below it into place on the outer circle of the roller shaft during the downward movement process, and the oiling device is connected to the action of the pressing machine to automatically apply the lubricating grease stored therein to the outer circle of the roller shaft in the slot below it under the action of the downward movement of the pressing machine.

[0011] Furthermore, the mounting bracket includes a support base, a mounting rod vertically supported on the support base, and a support frame fixed on the outer circle of the mounting rod; the work station turntable is mounted on the outer circle of the mounting rod and is rotatably supported on the support frame, so as to rotate to a set angle at each interval under the action of a driving force; the press and the oiling device are both connected to the mounting rod and are located above the slot.

[0012] Furthermore, the multiple rings to be pressed include a lower seal for being fitted onto the outer circle of the roller from the lower end of the roller, and a rolling outer ring and an upper seal for being fitted onto the outer circle of the roller in sequence from the upper end of the roller; the multiple slots include at least a first station for pressing the lower seal, a second station for oiling the outer circle of the roller, and a third station for pressing the rolling outer ring and the upper seal, and the multiple slots are evenly spaced along the circumference of the station turntable, so that one slot rotates correspondingly each time the station turntable rotates a set angle.

[0013] Furthermore, the press includes a press body fixed to the mounting rod by a first clamp, and a pressing head telescopically connected to the bottom end of the press body; the pressing head is used to simultaneously press and position the ring parts to be pressed on the outer circles of multiple roller shafts in the adjacent slots below it onto the outer circles of the corresponding roller shafts during the downward movement process.

[0014] Furthermore, the roller shaft includes an upper end shaft, a middle shaft and a lower end shaft arranged in sequence along the axial direction, and the outer diameters of the upper end shaft and the lower end shaft are smaller than the outer diameter of the middle shaft; the pressure head is provided with two first pressing holes and a second pressing hole for the two roller shafts in adjacent slots to pass through respectively; the apertures of the first pressing hole and the second pressing hole are larger than the outer diameter of the upper end shaft, and smaller than the outer diameters of the middle shaft and the ring to be pressed, so as to allow the corresponding upper end shaft to pass through during the downward movement of the pressure head, and to press the ring to be pressed on the outer circle of the roller shaft onto the outer circle of the middle shaft during the continued downward movement.

[0015] Furthermore, the oiling device includes an oil storage cylinder fixed to the mounting rod by a second clamp, a grease pressing component connecting the pressure head and the oil storage cylinder, and an oiling brush connected to the pressure head; the oil storage cylinder is used to store lubricating grease; the grease pressing component is used to apply pressure to the oil storage cylinder under the drive of the pressure head, so that the lubricating grease in the oil storage cylinder is squeezed outward in a quantitative manner; the oiling brush is used to automatically brush the extruded lubricating grease onto the outer circle of the roller shaft in the slot below it under the drive of the pressure head.

[0016] Furthermore, the oil storage cylinder includes a hollow cylindrical oil storage cylinder body and an oil outlet head, a piston slidably arranged in the oil storage cylinder body, and an upper cover that closes the upper open end of the oil storage cylinder body; the cavity between the piston and the upper cover forms a sealed driving cavity; the oil outlet head is connected to the bottom end of the oil storage cylinder body, and a plurality of oil outlet holes connected to its inner cavity are provided on the oil outlet head.

[0017] Furthermore, the grease pressing component includes an air blowing bag sealedly connected to the top of the press body, an air pipe connecting the air blowing bag and the driving chamber in the oil storage cylinder body, a pressure plate supported on the top of the air blowing bag, a connecting screw fixed to the pressure head of the press, and a locking nut; the lower end of the connecting screw is fixedly connected to the pressure head, and its opposite upper end is threadedly connected to the locking nut after passing through the air blowing bag and the pressure plate.

[0018] Furthermore, the oiling brush includes an oiling head sleeved on the outer circle of the oil outlet head, and a connecting rod fixedly connected to the oiling head; the other end of the connecting rod is fixedly connected to the pressure head.

[0019] Furthermore, the downward movement stroke of the oiling brush is adapted to the downward movement stroke of the pressure head, so that after the pressure head moves down to the right position, the oiling brush just finishes painting the part on the outer circle of the roller that needs to be painted.

[0020] The present invention has the following beneficial effects:

[0021] When the pressing tool of the present invention is working, the work station turntable rotates at set angles at intervals under the action of the driving force to drive the slots thereon to change positions accordingly. For example, the slot originally located at the first work station is also correspondingly converted to the second work station adjacent to the first work station after the work station turntable rotates once; when there are multiple rings to be pressed, multiple presses can be used to press them separately at the same time, or each press can be used to press multiple rings to be pressed on adjacent slots at the same time, and multiple slots are provided on the work station turntable at the same time. Therefore, no matter which setting method the press machine is in, and no matter how many rings to be pressed are there, when the work station turntable is working stably, the pressing and oiling of different rollers can be achieved at the same time, thereby improving assembly efficiency. , and when the number of slots is greater than the number of rings to be press-fitted, multiple rollers can be press-fitted and one roller can be oiled at the same time, thereby greatly improving assembly efficiency; on the other hand, compared with the manual assembly in the prior art, the tooling of the present invention adopts an automated press and oiling device, and the entire assembly process has a high degree of automation, which not only improves assembly efficiency and meets batch production needs, but also improves the qualified rate of roller body assembly, and is not prone to damage to the roller body during assembly or improper assembly of the rings to be press-fitted, and the quality of the roller body after assembly is stable, thereby improving its overall performance and service life; in addition, the oiling device is used to automatically oil the outer circle of the roller during assembly, avoiding the problems of uneven manual brushing and inconvenient brushing operation.

[0022] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the spatial structure of the roller body press-fitting tooling according to a preferred embodiment of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the spatial structure of the middle roller body;

[0026] Figure 3 yes Figure 1 Schematic diagram of the half-section structure of the middle oil storage cylinder;

[0027] Figure 4 yes Figure 1 Schematic diagram of the spatial structure of the middle station turntable.

[0028] Legend:

[0029] 1. Pressing machine; 11. Press head; 111. First pressing hole; 112. Second pressing hole; 12. Handle; 13. Pressing machine body; 14. First clamp;

[0030] 2. Oiling device; 21. Oil reservoir; 211. Oil reservoir body; 212. Oil outlet; 2120. Oil outlet hole; 213. Piston; 214. Upper cover; 22. Inflatable airbag; 23. Air pipe; 24. Pressing plate; 25. Connecting screw; 26. Locking nut; 27. Oiling brush; 28. Second clamp;

[0031] 31. Workstation turntable; 311. Slot; 32. Ratchet;

[0032] 4. Roller body; 41. Lower seal; 42. Upper seal; 43. Roller shaft; 430. Step surface; 44. Rolling outer ring;

[0033] 51. Support base; 52. Mounting rod. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0035] Reference Figure 1 A preferred embodiment of the present invention provides a roller body press-fitting tool for press-fitting multiple ring components to be press-fitted onto the outer circumference of a roller shaft 43 to assemble the roller body 4, while simultaneously applying grease to the roller shaft 43 during the press-fitting process. The roller body press-fitting tool comprises: a mounting bracket and a workstation turntable 31 serving as mounting support, and a press 1 and an oiling device 2 respectively connected to the mounting bracket. The workstation turntable 31 is mounted on the mounting bracket and is configured to rotate at set angles under the action of a driving force. The workstation turntable 31 is also provided with a plurality of slots 311 spaced apart along its circumference for mounting and positioning the roller shaft 43 and the ring components to be press-fitted. The press 1 is used to press the ring to be pressed, which is loosely sleeved on the outer circle of the roller 43 and located in the groove 311 below it, into place on the outer circle of the roller 43 during the downward movement process. The oiling device 2 is connected to the press 1 to automatically apply the lubricating grease stored therein to the outer circle of the roller 43 in the groove 311 below it when the press 1 moves downward.

[0036] When the pressing tool of the present invention is working, the work station turntable 31 rotates at intervals at a set angle under the action of the driving force to drive the slots 311 thereon to change positions accordingly. For example, the slot 311 originally located at the first work station is also correspondingly converted to the second work station adjacent to the first work station after the work station turntable 31 rotates once; when there are multiple rings to be pressed, multiple presses 1 can be used to press them separately at the same time, or each press 1 can press multiple rings to be pressed on adjacent slots 311 at the same time, and multiple slots 311 are provided on the work station turntable 31 at the same time. Therefore, no matter which setting mode the press 1 is in, and no matter how many rings to be pressed are there, when the work station turntable 31 is working stably, the pressing and oiling of different rollers 43 can be achieved at the same time, thereby improving the pressing efficiency. High assembly efficiency, and when the number of slots 311 is greater than the number of rings to be pressed, multiple rollers 43 can be pressed and one roller 43 can be oiled at the same time, thereby greatly improving the assembly efficiency; on the other hand, compared with the manual assembly in the prior art, the tooling of the present invention adopts an automated press 1 and an oiling device 2, and the entire assembly process has a high degree of automation, which not only improves the assembly efficiency, meets the needs of mass production, and improves the assembly qualification rate of the roller body 4, but also is not easy to cause damage to the roller body 4 during the assembly process or the rings to be pressed are not assembled in place, and the quality of the roller body 4 after assembly is stable, thereby improving its overall performance and service life; in addition, the oiling device 2 is used to automatically oil the outer circle of the roller 43 during the assembly process, avoiding the problems of uneven manual brushing and inconvenient brushing operation.

[0037] Alternatively, as Figure 1 As shown, the mounting bracket includes a support base 51, a mounting rod 52 vertically supported on the support base 51, and a support frame fixed on the outer circle of the mounting rod 52. Figure 1 The support frame is not shown. The station turntable 31 is mounted on the outer circle of the mounting rod 52 and is rotatably supported on the support frame so as to rotate at a set angle at each interval under the action of the driving force. The press 1 and the oiling device 2 are both connected to the mounting rod 52 and are located above the slot 311. In this optional solution, the station turntable 31 can be manually driven. Figure 4 As shown, a ratchet 32 ​​is added between the work station turntable 31 and the support frame to control the work station turntable 31 to rotate a fixed angle each time, and the press 1 has a handle 12 for driving its downward movement; the work station turntable 31 can also be connected to an existing automatic drive to automatically drive the work station turntable 31 to rotate a set angle according to a set time interval.

[0038] In this option, if Figure 1 and Figure 2As shown, the multiple ring components to be press-fitted include a lower seal 41, which is fitted onto the outer circumference of the roller 43 from the lower end of the roller 43, and a rolling outer ring 44 and an upper seal 42, which are sequentially fitted onto the outer circumference of the roller 43 from the upper end of the roller 43. The multiple slots 311 include at least a first station for press-fitting the lower seal 41, a second station for lubricating the outer circumference of the roller 43, and a third station for press-fitting the rolling outer ring 44 and the upper seal 42. The multiple slots 311 are evenly spaced along the circumference of the workstation turntable 31, so that one slot 311 rotates correspondingly each time the workstation turntable 31 rotates a set angle. In a specific embodiment of this optional scheme, the work station turntable 31 is provided with a total of 6 slots 311, which are named slots ① to ⑥ in a counterclockwise direction; the slots 311 can be used to place the roller 43 and the lower seal 41; a ratchet 32 ​​with 6 teeth is provided at the bottom of the work station turntable 31, so that the work station turntable 31 can rotate counterclockwise, and each rotation of one tooth causes the work station turntable 31 to rotate 60° to ensure that the roller 43 accurately enters the next work station.

[0039] Before work, set slot ① 311 as the starting position and slot ② 311 as the oiling position. Make preparations and start the operation:

[0040] 1) First, place the lower seal 41 and the roller 43 in the slot 311 of the work station turntable 31 in sequence, turn the handle 12 and press down to complete the press-fitting of the lower seal 41;

[0041] 2) The workstation turntable 31 rotates one grid counterclockwise, slot 6 311 completes the operation in 1), and slot 1 311 completes the oiling;

[0042] 3) The workstation turntable 31 rotates one grid counterclockwise, slot 5 311 completes the operation in 1), and slot 6 311 completes the oiling;

[0043] 4) The workstation turntable 31 rotates one grid counterclockwise, and slot 311 of No. 4 completes the operation in 1), while slot 311 of No. 5 completes the oiling;

[0044] 5) The workstation turntable 31 rotates one grid counterclockwise, slot 311 of No. ③ completes the operation in 1), and slot 311 of No. ④ completes the oiling;

[0045] 6) The workstation turntable 31 rotates counterclockwise by one grid. The rolling outer ring 44 and the upper seal 42 are placed on the roller shaft 43 in slot 11. The upper seal 42 is press-fitted. Slot 2 completes the operation in step 1. At the same time, slot 311 is oiled.

[0046] 7) Enter the continuous pressing stage, each time it rotates one grid, the ring to be pressed is arranged, the handle 12 is turned and pressed down, and the pressing machine 1 is connected to the oiling device 2 to work synchronously, and the upper seal 42 and the lower seal 41 of the roller body 4 can be pressed at the same time, and the lubricating grease is applied to the outer circle of the roller shaft 43, that is, continuous operation is achieved, which greatly improves the assembly efficiency of the roller body 4, and the lower seal 41 and the upper seal 42 are pressed and lubricating grease is applied at the same time. The pressing force and speed are uniform, and the assembly action is more standardized, thereby greatly improving the stability and quality of the assembly; in addition, the lower seal 41, the upper seal 42 and the rolling outer ring 44 can be manually installed or automatically installed by a robot. When manually installed, it can be completed by one person, and the labor intensity of the worker is low.

[0047] Alternatively, as Figure 1 As shown, the press 1 includes a press body 13 secured to a mounting rod 52 via a first clamp 14, and a press head 11 telescopically connected to the bottom end of the press body 13. During its downward movement, the press head 11 simultaneously presses and positions the rings to be press-fitted on the outer circumferences of multiple rollers 43 in adjacent slots 311 below it onto the outer circumferences of the corresponding rollers 43. In this alternative, the press 1 can employ an existing manual press or an automatic press.

[0048] In this option, if Figure 1 and Figure 2 As shown, the roller shaft 43 includes an upper shaft, a middle shaft, and a lower shaft arranged in sequence along the axial direction, and the outer diameters of the upper shaft and the lower shaft are smaller than the outer diameter of the middle shaft. The pressure head 11 is provided with two first press-fitting holes 111 and second press-fitting holes 112, respectively, for the two roller shafts 43 in adjacent slots 311 to pass through. The diameters of the first press-fitting holes 111 and the second press-fitting holes 112 are both larger than the outer diameter of the upper shaft and smaller than the outer diameters of the middle shaft and the ring to be press-fitted. This allows the corresponding upper shaft to pass through during the downward movement of the pressure head 11, and during the continued downward movement, the ring to be press-fitted, which is sleeved on the outer circumference of the roller shaft 43, is press-fitted onto the outer circumference of the middle shaft. During operation, when the handle 12 is turned and pressed downward, the first press-fitting hole 111 is responsible for press-fitting the lower seal 41 at the lower end of the roller shaft 43, and the second press-fitting hole 112 is responsible for press-fitting the upper seal 42 at the upper end of the roller shaft 43, and the apertures of the first press-fitting hole 111 and the second press-fitting hole 112 are slightly larger than the diameter of the upper end shaft of the roller shaft 43. After the lower seal 41 and the upper seal 42 are pressed into place, the step surface 430 at the connection between the upper end shaft and the middle shaft will limit the pressure head 11, preventing it from moving downward.

[0049] Alternatively, as Figure 1As shown, the lubricating device 2 includes an oil reservoir 21 secured to the mounting rod 52 via a second clamp 28, a grease pressing member connecting the pressure head 11 and the oil reservoir 21, and an oiling brush 27 connected to the pressure head 11. The oil reservoir 21 is used to store lubricating grease. Driven by the pressure head 11, the grease pressing member applies pressure to the oil reservoir 21, forcing a fixed amount of lubricating grease outward from the oil reservoir 21. Driven by the pressure head 11, the oiling brush 27 automatically applies the extruded grease to the outer circumference of the roller 43 in the slot 311 below it.

[0050] In this option, if Figure 3 As shown, the oil reservoir 21 includes a hollow, cylindrical oil reservoir body 211, an oil outlet head 212, a piston 213 slidably disposed within the oil reservoir body 211, and an upper cover 214 that seals the upper open end of the oil reservoir body 211. The cavity between the piston 213 and the upper cover 214 forms a sealed drive chamber. The oil outlet head 212 is connected to the bottom end of the oil reservoir body 211 and is provided with a plurality of oil outlet holes 2120 that communicate with its inner cavity. During operation, the oil reservoir body 211 is first filled with grease, then the piston 213 is inserted, and finally the upper cover 214 is screwed on, ensuring that the drive chamber is as closed as possible between the piston 213 and the upper cover 214.

[0051] In this option, if Figure 1 As shown, the grease pressing component includes an air blowing bag 22 sealedly connected to the top of the press body 13, an air pipe 23 connecting the air blowing bag 22 and the drive chamber in the oil reservoir body 211, a pressure plate 24 supported on the top of the air blowing bag 22, a connecting screw 25 fixed to the pressing head 11 of the press 1, and a locking nut 26. The lower end of the connecting screw 25 is fixedly connected to the pressing head 11, and its opposite upper end passes through the air blowing bag 22 and the pressure plate 24 and is then threadedly connected to the locking nut 26. During operation, when the pressure head 11 moves downward, it drives the connecting screw 25 to move downward synchronously. The connecting screw 25 presses down the pressure plate 24 through the locking nut 26, which in turn causes the pressure plate 24 to press down the airbag 22. After the airbag 22 is compressed by the top pressure plate 24, it automatically blows air into the drive chamber of the oil reservoir body 211, forcing the piston 213 to press down the lubricating grease contained in the oil reservoir body 211, causing the lubricating grease to flow outward from the oil outlet 2120 provided on the oil outlet head 212. Since the single downward stroke of the pressure head 11 is fixed, the amount of air blown by the airbag 22 in a single blow is basically fixed, thereby achieving quantitative pumping of lubricating grease. In this preferred embodiment, the pre-compression amount of the airbag 22 can be adjusted by adjusting the mating connection position of the connecting screw 25 and the locking nut 26, thereby controlling the amount of oil discharged in a single blow.

[0052] In this option, if Figure 1As shown, the oiling brush 27 includes an oiling head mounted on the outer circumference of the oil outlet head 212, and a connecting rod fixedly connected to the oiling head. The other end of the connecting rod is fixedly connected to the pressure head 11. Each time the handle 12 is turned and pressed downward, the pressure head 11 compresses the blowing airbag 22. Under closed conditions, the piston 213 moves downward to squeeze the lubricating grease, causing the lubricating grease to flow out from the bottom oil outlet 2120. At the same time, the oiling brush 27 moves downward synchronously driven by the pressure head 11, takes away the flowing grease, and then continues to move downward until it completely passes through the part to be brushed on the roller 43. In this optional solution, an oiling device 2 is designed to automatically and quantitatively apply lubricating grease. It can accurately control the amount of oil output per time and automatically complete the application of lubricating grease, thereby solving the problem of difficult control of the amount of lubricating grease applied and improving assembly efficiency and quality.

[0053] Preferably, if Figure 1 As shown, the downward travel of the oiling brush 27 is adapted to the downward travel of the pressure head 11, so that after the pressure head 11 is lowered into position, the oiling brush 27 has just finished coating the area to be coated on the outer circumference of the roller shaft 43. In this preferred embodiment, the connecting rod is designed to be bent, and the pressure head 11 can be adjusted in height by the first clamp 14. Therefore, when the pressure head 11 reaches the lowest position for press-fitting, the oiling brush 27 has just reached the lowest position of the area to be coated on the roller shaft 43, that is, the effective working strokes of the two are the same.

[0054] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A roller body press fitting, characterized in that: The roller body press-fitting tool is used to press-fit a plurality of rings to be press-fitted onto the outer circle of a roller shaft (43) to assemble and form a roller body (4), and simultaneously grease the roller shaft (43) during the press-fitting process. The roller body press-fitting tool comprises: A mounting bracket and a workstation turntable (31) serving as mounting supports, and a press (1) and an oiling device (2) respectively connected to the mounting bracket; The station turntable (31) is mounted on the mounting bracket and is used to rotate at intervals at a set angle under the action of a driving force. The station turntable (31) is also provided with a plurality of slots (311) sequentially spaced along its circumference for mounting and positioning the roller shaft (43) and the ring to be pressed. The press (1) is used to press the ring to be pressed, which is loosely fitted on the outer circle of the roller (43) and located in the groove (311) below it, into place on the outer circle of the roller (43) during the downward movement process. The oiling device (2) is connected to the press (1) to automatically apply the lubricating grease stored therein to the outer circle of the roller (43) in the groove (311) below it when the press (1) moves downward.

2. The roller body press-fitting tool according to claim 1, characterized in that: The mounting bracket comprises a support base (51), a mounting rod (52) vertically supported on the support base (51), and a support frame fixed on the outer circle of the mounting rod (52); The station turntable (31) is sleeved on the outer circle of the mounting rod (52) and is rotatably supported on the support frame so as to rotate at a set angle at each interval under the action of a driving force; The press (1) and the oiling device (2) are both connected to the mounting rod (52) and are located above the slot (311).

3. The roller body press-fitting tool according to claim 2, characterized in that: The plurality of ring parts to be press-fitted include a lower sealing member (41) for being fitted from the lower end of the roller shaft (43) onto the outer circle of the roller shaft (43), and a rolling outer ring (44) and an upper sealing member (42) for being fitted from the upper end of the roller shaft (43) onto the outer circle of the roller shaft (43) in sequence; The plurality of slots (311) at least include a first station for press-fitting a lower seal (41), a second station for oiling the outer circle of a roller shaft (43), and a third station for press-fitting a rolling outer ring (44) and an upper seal (42), and the plurality of slots (311) are evenly spaced along the circumference of the station turntable (31), so that one slot (311) rotates correspondingly each time the station turntable (31) rotates a set angle.

4. The roller body press-fitting tool according to claim 2, characterized in that: The press-fitting machine (1) comprises a press-fitting machine body (13) fixed to a mounting rod (52) via a first clamp (14), and A pressing head (11) is telescopically connected to the bottom end of the pressing machine body (13); The pressing head (11) is used to simultaneously press and position the rings to be pressed on the outer circles of the plurality of roller shafts (43) in the adjacent slots (311) below it onto the outer circles of the corresponding roller shafts (43) during the downward movement process.

5. The roller body press-fitting tool according to claim 4, characterized in that: The roller shaft (43) includes an upper shaft, a middle shaft and a lower shaft which are sequentially arranged along the axial direction, and the outer diameters of the upper shaft and the lower shaft are smaller than the outer diameter of the middle shaft; The pressing head (11) is provided with two first pressing holes (111) and two second pressing holes (112) for respectively passing two roller shafts (43) in adjacent slots (311); The diameters of the first press-fitting hole (111) and the second press-fitting hole (112) are both larger than the outer diameter of the upper shaft and smaller than the outer diameters of the middle shaft and the ring to be press-fitted, so that the corresponding upper shaft can pass through during the downward movement of the pressure head (11), and the ring to be press-fitted, which is sleeved on the outer circle of the roller shaft (43), can be press-fitted onto the outer circle of the middle shaft during the further downward movement.

6. The roller body press-fitting tool according to claim 4, characterized in that: The oiling device (2) comprises an oil storage cylinder (21) fixed to a mounting rod (52) via a second clamp (28), a grease pressing member connecting the pressure head (11) and the oil storage cylinder (21), and an oiling brush (27) connected to the pressure head (11); The oil storage cylinder (21) is used to store lubricating grease; The grease pressing component is used to apply pressure to the oil storage cylinder (21) under the drive of the pressure head (11), so as to squeeze the lubricating grease in the oil storage cylinder (21) outward in a quantitative manner; The oiling brush (27) is used to automatically apply the extruded lubricating grease to the outer circle of the roller (43) in the groove (311) below the pressure head (11) under the drive of the pressure head (11).

7. The roller body press-fitting tool according to claim 6, characterized in that: The oil storage cylinder (21) comprises a hollow cylindrical oil storage cylinder body (211), an oil outlet head (212), a piston (213) slidably arranged in the oil storage cylinder body (211), and an upper cover (214) that closes the upper open end of the oil storage cylinder body (211); The cavity between the piston (213) and the upper cover (214) forms a sealed driving cavity; The oil outlet head (212) is in communication with the bottom end of the oil storage barrel body (211), and the oil outlet head (212) is provided with a plurality of oil outlet holes (2120) in communication with the inner cavity thereof.

8. The roller body press-fitting tool according to claim 7, characterized in that: The grease pressing component comprises an air blowing bag (22) sealedly connected to the top of the press body (13), an air pipe (23) communicating with the air blowing bag (22) and a driving cavity in the oil reservoir body (211), a pressing plate (24) supported on the top of the air blowing bag (22), a connecting screw (25) fixed to the pressing head (11) of the press (1), and a locking nut (26); The lower end of the connecting screw (25) is fixedly connected to the pressure head (11), and the upper end thereof is threadedly connected to the locking nut (26) after passing through the blowing air bag (22) and the pressing plate (24).

9. The roller body press-fitting tool according to claim 7, characterized in that: The oiling brush (27) comprises an oiling head sleeved on the outer circle of the oil outlet head (212), and a connecting rod fixedly connected to the oiling head; The other end of the connecting rod is fixedly connected to the pressure head (11).

10. The roller body press-fitting tool according to claim 9, characterized in that: The downward movement of the oiling brush (27) is adapted to the downward movement of the pressure head (11), so that after the pressure head (11) moves downward to the right position, the oiling brush (27) just finishes painting the parts on the outer circle of the roller shaft (43) that need to be painted.

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