Sealing element press-fitting device and hub bearing assembly line

Abstract

The invention relates to the technical field of bearing assembly, and provides a sealing element press-fitting device and a hub bearing assembly line.The sealing element press-fitting device comprises a conveying table, a transferring mechanism, an oil injection mechanism and a press-fitting mechanism, the transferring mechanism is arranged on the conveying table, and the oil injection mechanism and the press-fitting mechanism are sequentially arranged in the conveying direction of the conveying table; the transferring mechanism comprises a sliding strip, a positioning plate and a first driving assembly, the sliding strip is installed on one side of the conveying table in a sliding mode, the positioning plate is arranged on the surface of the conveying table and connected with the sliding strip, and a positioning groove allowing a bearing to be embedded in is formed in one side of the positioning plate; the first driving assembly is arranged on one side of the conveying table and used for driving the sliding strip to slide. According to the sealing element press-fitting device, the transfer efficiency and the transfer precision of the bearing can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of bearing assembly, and in particular to a seal press-fitting device and a hub bearing assembly line. Background Art

[0002] In the automotive industry, the performance of wheel hub bearings directly impacts the operating efficiency and safety of the entire vehicle. Therefore, ensuring the assembly quality of wheel hub bearings has become a key concern in the industry. During the assembly of wheel hub bearings, press-fitting seals is a critical step, effectively preventing contaminants such as dust and moisture from entering the bearing, thereby protecting the bearing's proper operation and extending its service life.

[0003] Prior to press-fitting seals into bearings, grease must be injected to form an oil film between the bearing's moving and sliding surfaces, reducing friction and wear within the bearing. After the grease injection process is complete, the bearing is transferred to the press-fitting station for press-fitting of the seals.

[0004] The existing methods of transferring bearings are mainly manual or conveyor belts. However, both manual handling and conveyor belt transportation have certain limitations. The manual transfer method has low transfer efficiency, and the operator's hands are easily contaminated by grease during the transfer process. While the conveyor belt transfer method improves the level of automation, in actual operation, the bearings are prone to positional displacement on the conveyor belt, resulting in insufficient transfer accuracy, which in turn has an adverse effect on the subsequent press-fitting of the seals and reduces the press-fitting quality. Therefore, how to improve the efficiency and accuracy of the bearing transfer process to the press-fitting station after oiling has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In order to improve the transfer efficiency and transfer accuracy of bearings, the present application provides a seal press-fitting device and a wheel hub bearing assembly line.

[0006] In the first aspect, the present application provides a sealing component press-fitting device adopting the following technical solution: A sealing component pressing device includes a conveying platform, a transfer mechanism, an oiling mechanism and a pressing mechanism, wherein the transfer mechanism is arranged on the conveying platform to transfer the bearings on the conveying platform, and the oiling mechanism and the pressing mechanism are arranged in sequence along the conveying direction of the conveying platform; the transfer mechanism includes a sliding bar, a positioning plate and a first drive component, the sliding bar is slidably installed on one side of the conveying platform, the positioning plate is placed on the conveying platform surface and connected to the sliding bar, and a positioning groove for the bearing to be embedded is opened on one side of the positioning plate; the first drive component is arranged on one side of the conveying platform to drive the sliding bar to slide.

[0007] By adopting the above technical solution, the bearing is placed on the conveyor platform. After grease is injected into the bearing by the oil injection mechanism, the first drive assembly forces the sliding bar to slide, driving the positioning plate to slide, so that the positioning plate can transfer the oiled bearing to the press-fitting mechanism for press-fitting of the seal. The positioning groove of the positioning plate can effectively position the bearing, reducing the possibility of bearing deflection during transfer, allowing the bearing to be transferred on the conveyor platform in a straight line as much as possible, improving the transfer efficiency and accuracy of the bearing.

[0008] Optionally, the pressing mechanism includes a first mounting plate, a guide cylinder, a pressing cylinder and a first lifting member, the first mounting plate is arranged on the top of the conveying platform, the first mounting plate has a pressing channel, the guide cylinder is arranged in the pressing channel, the sealing member is used to sleeve the outer wall of the guide cylinder, when the bearing is transferred to the bottom of the pressing channel, the guide cylinder and the bearing are coaxial; the pressing cylinder is slidably installed on the top of the first mounting plate and is coaxially arranged with the guide cylinder, the inner diameter of the pressing cylinder is adapted to the outer diameter of the guide cylinder, and the first lifting member is arranged on the pressing cylinder to drive the pressing cylinder to rise and fall.

[0009] By adopting the above technical solution, after the bearing is transferred to the bottom of the press-fitting channel of the first mounting plate via the positioning plate, the guide cylinder and the bearing are now coaxial. By forcing the press-fitting cylinder downward, the seal on the outer peripheral wall of the guide cylinder can be pressed into the sealing position of the bearing. The provision of the guide cylinder can guide the seal and improve the press-fitting accuracy of the seal.

[0010] Optionally, a loading cylinder for storing seals is provided on one side of the first mounting plate, and the seals are sleeved on the outer peripheral wall of the loading cylinder; a second mounting plate is provided at the bottom of the loading cylinder, and the upper surface of the mounting plate is kept flush with the upper surface of the first mounting plate; a transfer plate is slidably installed on the upper surface of the second mounting plate, and a transfer groove is provided on the plate surface of the transfer plate for the seals to fall into; the second mounting plate is provided with a pushing member, and the pushing member is used to force the transfer plate to approach or move away from the first mounting plate, so as to transfer the seal in the transfer groove to the press-fitting channel of the first mounting plate.

[0011] By adopting the above-mentioned technical solution, a certain amount of seals are stored on the outer peripheral wall of the loading barrel in advance. When the bearing is transferred to the bottom of the press-fitting channel, the transfer plate is driven to slide toward the side close to the first mounting plate to transfer the seals fallen into the transfer groove to the first mounting plate; as the transfer plate slides, when the transfer groove of the transfer plate slides to connect with the press-fitting channel, the seals in the transfer groove can be separated from the transfer groove under the action of gravity and sleeved on the outer peripheral wall of the guide barrel, thereby improving the convenience of loading the seals.

[0012] Optionally, a third mounting plate is provided on the second mounting plate, and a limiting sleeve is provided on the third mounting plate, and the limiting sleeve is coaxially arranged between the limiting sleeve and the loading barrel; the limiting sleeve is provided with a limiting block, and a plurality of limiting blocks are spaced around the central axis of the limiting sleeve, and each of the limiting blocks is slidably installed on the limiting sleeve so as to be able to slide radially along the limiting sleeve; the limiting sleeve is provided with a second driving assembly, and the second driving assembly is used to drive multiple limiting blocks to slide synchronously toward or away from the center of the limiting sleeve.

[0013] By adopting the above-mentioned technical solution, the limiting sleeve and the limiting block are set to control the falling of the seal on the outer wall of the upper barrel. When needed, all the limiting blocks are driven away from the center of the limiting sleeve by the second driving component to release the limiting effect on the seal of the upper barrel, so that the seal at the lower end can fall into the transfer groove of the transfer plate. At this time, all the limiting blocks are driven close to the center of the limiting sleeve to prevent the falling of other seals in the upper barrel, thereby controlling the seals to fall one by one and improving the stability of the overall structure.

[0014] Optionally, the first mounting plate is slidably installed on the top of the conveying platform, and the first mounting plate is connected to a second lifting member for driving the first mounting plate to rise and fall; the lower end of the guide cylinder has a positioning portion for being inserted into the bearing, and the outer diameter of the positioning portion is adapted to the inner diameter of the outer ring of the bearing; the outer peripheral wall of the guide cylinder has a guide surface, and the guide surface is annular around the central axis of the guide cylinder, and the outer diameter of the guide surface gradually increases from top to bottom.

[0015] By adopting the above-mentioned technical solution, after the bearing is transferred to the bottom of the press-fitting channel, the first mounting plate is driven downward, driving the positioning portion of the guide cylinder to be inserted into the bearing. The plug-in fit between the positioning portion and the bearing ensures that the guide cylinder and the bearing are coaxial, thereby improving the press-fitting quality of the seal.

[0016] Optionally, a connecting groove is provided on the outer wall of the guide cylinder, and the first mounting plate is provided with a connecting block. A plurality of connecting blocks are arranged at intervals around the central axis of the press-fitting channel, and each of the connecting blocks is slidably mounted on the first mounting plate so as to be able to slide radially along the guide cylinder; the first mounting plate is provided with a moving part for driving the connecting block close to or away from the connecting groove.

[0017] By adopting the above-mentioned technical solution, after the first mounting plate moves downward, forcing the guide cylinder's positioning portion into the bearing, the moving member forces all the connecting blocks to slide simultaneously toward the side away from the guide cylinder, disconnecting the guide cylinder from the first mounting plate. This allows the seal to be press-fitted from the guide cylinder's outer peripheral wall to the bearing's sealing position under the pressure of the press-fitting cylinder. After the seal is press-fitted, all the connecting blocks are driven to slide and insert into the connecting groove, reconnecting the guide cylinder to the first mounting plate. The first mounting plate is then driven to rise, disengaging the guide cylinder's positioning portion from the bearing, improving the operational convenience of the overall structure.

[0018] Optionally, each of the connecting blocks is provided with a docking groove on the peripheral wall near the guide cylinder, a docking strip is slidably installed in the docking groove, a first spring is provided between the docking strip and the docking groove, the first spring forces the docking strip to be partially exposed in the docking groove, and the length of the exposed part of the docking strip is greater than the thickness of the press-fitting cylinder; an avoidance groove is provided on the outer peripheral wall of the press-fitting cylinder for the docking strip to extend into, and one end of the avoidance groove passes through the lower end face of the press-fitting cylinder.

[0019] By adopting the above-described technical solution, the seal is press-fitted from the outer circumferential wall of the guide cylinder to the sealing position of the bearing under the pressure of the press-fitting cylinder. At this time, all the connecting blocks are driven to slide toward the center of the guide cylinder, forcing the docking strips of the connecting blocks to pass through the avoidance grooves and insert into the connecting grooves, achieving docking between the docking strips and the guide cylinder. The first mounting plate is then driven to rise (while the press-fitting cylinder remains stationary), allowing the first mounting plate to pull the guide cylinder, forcing the outer circumferential wall of the guide cylinder to separate from the inner circumferential wall of the seal. The press-fitting cylinder remains stationary during the guide cylinder being lifted away from the bearing, thereby reducing the possibility of the seal being simultaneously dislodged due to friction between the guide cylinder and the seal, thereby improving the press-fitting effect of the seal.

[0020] Optionally, the outer wall of the guide cylinder is provided with a plurality of sliding grooves, and the plurality of sliding grooves are arranged at intervals around the central axis of the guide cylinder, and an abutment arc piece is slidably installed in each of the sliding grooves; a second spring is provided between the abutment arc piece and the sliding groove, and the second spring forces the outer arc surface of the abutment arc piece to remain flush with the outer wall of the guide cylinder; the guide cylinder is provided with a sliding assembly, and when the press-fitting cylinder is sleeved on the guide cylinder and the seal is pressed onto the bearing, the sliding assembly forces all the abutment arc pieces to slide toward the center of the guide cylinder.

[0021] By adopting the above-mentioned technical solution, under normal conditions, the outer arc surfaces of all abutment arcs remain flush with the outer circumferential wall of the guide cylinder, maintaining the integrity of the guide cylinder's outer circumferential wall and allowing the seal to be somewhat stretched against the outer circumferential wall of the guide cylinder. Once the seal is press-fitted into the bearing's sealing position by the press-fitting cylinder, the sliding assembly forces all abutment arcs to slide toward the center of the guide cylinder, separating them from the inner circumferential wall of the seal. This reduces the contact area between the guide cylinder and the seal (i.e., reduces friction), facilitating subsequent removal of the guide cylinder from the press-fitted seal.

[0022] Optionally, each of the abutting arc pieces is connected to a sliding rod, and one end of the sliding rod away from the abutting arc piece extends into the guide cylinder; the sliding assembly includes a sliding block, a connecting rod and a pushing rod, and the sliding block is arranged in the guide cylinder, and the connecting rod is provided in plurality and corresponds to a plurality of abutting arc pieces, one end of each of the connecting rods is hinged to the sliding block, and the other end is hinged to the sliding rod corresponding to the abutting arc piece; one end of the pushing rod is connected to the inner wall of the pressing cylinder, and when the pressing cylinder is sleeved on the guide cylinder and the seal is pressed onto the bearing, the pushing rod pushes the sliding block and forces all the abutting arc pieces to slide toward the center of the guide cylinder.

[0023] By adopting the above-mentioned technical solution, when the press-fitting cylinder moves downward and presses the seal on the outer peripheral wall of the guide cylinder into the sealing position of the bearing, the press-fitting cylinder pushes the sliding block through the push rod. Under the action of multiple connecting rods, all the abutting arc pieces are forced to slide toward the center of the guide cylinder to reduce the contact area between the guide cylinder and the seal, thereby facilitating the pull-out of the guide cylinder from the press-fitted seal and improving the operational convenience of the overall structure.

[0024] In a second aspect, the present application provides a wheel hub bearing assembly line adopting the following technical solutions: A wheel hub bearing assembly line comprises the above-mentioned sealing component press-fitting device.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the setting of the transfer mechanism, the bearing is placed on the conveyor platform. After the oiling mechanism injects grease into the bearing, the first drive assembly forces the sliding bar to slide, driving the positioning plate to slide, so that the positioning plate can transfer the oiled bearing to the press-fitting mechanism for press-fitting of the seal. The positioning groove of the positioning plate can position the bearing, reducing the possibility of bearing deflection during the transfer process, allowing the bearing to be transferred on the conveyor platform as straight as possible, improving the transfer efficiency and accuracy of the bearing; 2. Through the provision of the docking strip, the seal is pressed from the outer circumferential wall of the guide cylinder to the sealing position of the bearing under the pressure of the press-fitting cylinder. At this time, all the connecting blocks are driven to slide toward the center of the guide cylinder, forcing the docking strips of the connecting blocks to pass through the avoidance grooves and insert into the connecting grooves, achieving docking between the docking strips and the guide cylinder. The first mounting plate is then driven to rise (the press-fitting cylinder remains stationary), allowing the first mounting plate to pull the guide cylinder, forcing the outer circumferential wall of the guide cylinder to separate from the inner circumferential wall of the seal. The press-fitting cylinder remains stationary during the guide cylinder being lifted away from the bearing, which can reduce the possibility of the seal being simultaneously dislodged due to friction between the guide cylinder and the seal, thereby improving the press-fitting effect of the seal. 3. Through the arrangement of the abutment arcs, under normal conditions, the outer arc surfaces of all abutment arcs remain flush with the outer circumferential wall of the guide cylinder, maintaining the integrity of the outer circumferential wall of the guide cylinder and allowing the seal to be stretched to a certain extent on the outer circumferential wall of the guide cylinder. After the seal is press-fitted to the sealing position of the bearing by the press-fitting cylinder, the sliding assembly forces all abutment arcs to slide toward the center of the guide cylinder, separating the abutment arcs from the inner circumferential wall of the seal, thereby reducing the contact area between the guide cylinder and the seal, making it easier to subsequently remove the guide cylinder from the press-fitted seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a structural diagram of the oil injection mechanism of Example 1; Figure 4 This is a schematic structural diagram of the oil injection assembly according to Example 1; Figure 5 This is a schematic structural diagram of the flip assembly according to Example 1; Figure 6 This is a schematic structural diagram of the transfer mechanism according to Example 1; Figure 7 This is a schematic structural diagram of the loading barrel in Example 1; Figure 8 This is a schematic structural diagram of the press-fitting mechanism of Example 1; Figure 9 is a partial cross-sectional view of the connecting block and the connecting groove of Example 1; Figure 10 is a partial cross-sectional view of the second drive assembly according to embodiment 1; Figure 11 is a partial cross-sectional view of the docking strip and the avoidance groove of Example 2; Figure 12 It is a partial cross-sectional view of the sliding assembly according to embodiment 3.

[0027] Explanation of reference numerals: 1. conveying platform; 11. oiling plate; 2. transfer mechanism; 21. sliding bar; 22. positioning plate; 221. positioning groove; 23. second slide rail; 24. second slide seat; 25. second cylinder; 26. third cylinder; 3. oiling mechanism; 31. oiling assembly; 311. oil gun; 312. clamping bar; 32. flip assembly; 321. second rotary cylinder; 322. fixing plate; 323. clamping plate; 4. pressing mechanism; 41. first mounting plate; 411. pressing channel; 42. guide cylinder; 421. positioning portion; 422. guide surface; 423. connecting groove; 424. sliding groove; 425. abutting arc piece; 426. second spring; 427. sliding rod; 43. Press-fitting cylinder; 431, avoidance groove; 44, connecting block; 441, docking groove; 442, docking strip; 443, first spring; 45, second clamping cylinder; 5, loading cylinder; 51, second mounting plate; 52, transfer plate; 53, third mounting plate; 54, limit sleeve; 55, limit block; 56, counterweight; 6, second drive assembly; 61, rotating ring; 611, guide arc groove; 612, first point; 613, second point; 62, connecting column; 63, push cylinder; 7, sliding assembly; 71, sliding block; 72, connecting rod; 73, push rod; 8, storage table; 81, first slide rail; 82, first slide seat; 83, first cylinder; 84, first rotating cylinder; 85, first clamping cylinder. DETAILED DESCRIPTION

[0028] The following combination Figures 1-12 This application is described in further detail.

[0029] Example 1: This embodiment of the present application discloses a sealing component press-fitting device.

[0030] Reference Figure 1 A sealing component pressing device includes a conveying platform 1, a transfer mechanism 2, an oiling mechanism 3 and a pressing mechanism 4. The conveying platform 1 is long and narrow, and the upper surface of the conveying platform 1 is used to place bearings. The transfer mechanism 2 is arranged on the conveying platform 1 to transfer the bearings on the conveying platform 1. The oiling mechanism 3 is used to inject grease into the oiling position of the bearing. The pressing mechanism 4 is used to press the seal into the sealing position of the bearing. In this embodiment, the oiling mechanism 3 and the pressing mechanism 4 are arranged in sequence along the conveying direction of the conveying platform 1.

[0031] Reference Figure 1 、 Figure 2, a storage platform 8 for storing bearings is provided at the front end of the conveying platform 1, and a first slide rail 81 is provided on the top of the storage platform 8, and a first slide seat 82 is slidably installed on the first slide rail 81, and the first slide seat 82 is provided with a conveying assembly, which is used to transfer the bearings on the storage platform 8 to the conveying platform 1; the conveying assembly includes a first cylinder 83, a first rotating cylinder 84 and a first clamping cylinder 85, the cylinder body of the first cylinder 83 is installed on the first slide seat 82, the cylinder body of the first rotating cylinder 84 is installed on the piston end of the first cylinder 83, and the cylinder body of the first clamping cylinder 85 is installed on the rotating end of the first rotating cylinder 84 to clamp the bearings on the storage platform 8; in this embodiment, the driving mode of the first slide seat 82 can be driven by a linear motor so that the first slide seat 82 can slide along the length direction of the first slide rail 81.

[0032] Reference Figure 1 、 Figure 3 The oiling mechanism 3 includes an oiling assembly 31 and a flipping assembly 32. Two sets of oiling assemblies 31 are spaced apart along the length of the conveyor platform 1. The flipping assembly 32 is positioned between the two sets of oiling assemblies 31 to cause the bearing to flip (i.e., rotate the bearing 180°). This design allows the first set of oiling assemblies 31 to oil the oiling point at one end of the bearing. After the flipping assembly 32 flips the bearing, the other set of oiling assemblies 31 can then oil the oiling point at the other end of the bearing.

[0033] Reference Figure 3 、 Figure 4 An oiling plate 11 is mounted on one side of the conveyor platform 1. The oiling assembly 31 includes an oil gun 311 and two clamping bars 312. The oil gun 311 (the oil gun 311 is conventional and its structure will not be elaborated on here) is mounted on the oiling plate 11. The two clamping bars 312 are both slidably mounted on the oiling plate 11. In this embodiment, the two clamping bars 312 can move closer to or farther from each other to clamp the bearings. The driving method for moving the two clamping bars 312 closer to or farther from each other is cylinder-driven. In addition, in this embodiment, the two clamping bars 312 can also slide in a direction closer to or farther from the conveyor platform 1 to transfer the bearings on the conveyor platform 1 to the oiling plate 11 or transfer the bearings on the oiling plate 11 to the conveyor platform 1. After grease is injected by the oil gun 311, the bearings are then transferred back to the conveyor platform 1 by the two clamping bars 312. The driving source for the two clamping bars 312 to slide in a direction closer to or farther from the conveyor platform 1 is also cylinder-driven.

[0034] Reference Figure 3 、 Figure 5The flipping assembly 32 includes a second rotary cylinder 321, a fixed plate 322, and a clamping plate 323. The second rotary cylinder 321 is installed on one side of the conveying platform 1, the fixed plate 322 is installed on the rotating end of the second rotary cylinder 321, and the clamping plate 323 is slidably installed on the fixed plate 322. In this embodiment, the sliding drive mode of the clamping plate 323 is cylinder drive, so that the clamping plate 323 can move closer to or away from the fixed plate 322. Under normal circumstances, the plate surface of the fixed plate 322 and the surface of the conveying platform 1 remain flush, so that the bearing can move between the fixed plate 322 and the clamping plate 323. With this design, after the bearing moves between the fixed plate 322 and the clamping plate 323, the clamping plate 323 is driven to move downward, so that the fixed plate 322 and the clamping plate 323 are clamped on the bearing together. Then, the second rotary cylinder 321 is used to realize the flipping of the bearing.

[0035] Reference Figure 3 、 Figure 6 The transfer mechanism 2 includes a sliding bar 21, a positioning plate 22 and a first driving assembly. The sliding bar 21 is slidably installed on the side of the conveying platform 1 away from the oil filling plate 11. The two ends of the sliding bar 21 are extended along the length direction of the conveying platform 1. The positioning plate 22 is placed on the surface of the conveying platform 1 and is fixedly connected to the sliding bar 21. There are multiple positioning plates 22 spaced apart along the length direction of the sliding bar 21. The side wall of each positioning plate 22 away from the sliding bar 21 is provided with a positioning groove 221 for the bearing to be embedded.

[0036] The first driving assembly is arranged on one side of the conveyor platform 1 to drive the sliding bar 21 to slide. A second slide rail 23 is installed on the side of the sliding bar 21 away from the conveyor platform 1. Both ends of the second slide rail 23 are extended along the length direction of the conveyor platform 1. A second slide seat 24 is slidably installed on the second slide rail 23. The first driving assembly includes a second cylinder 25 and a third cylinder 26. The second cylinder 25 is installed between the second slide rail 23 and the second slide seat 24 to drive the second slide seat 24 to slide. The third cylinder 26 is installed between the second slide seat 24 and the sliding bar 21. When the piston rod of the third cylinder 26 is actuated, the sliding bar 21 slides along the width direction of the conveyor platform 1 (that is, the sliding direction of the sliding bar 21 is perpendicular to the conveying direction of the conveyor platform 1 at this time).

[0037] Reference Figure 3 、 Figure 7The press-fitting mechanism 4 includes a first mounting plate 41, a guide cylinder 42, a press-fitting cylinder 43, and a first lifting member. The first mounting plate 41 is slidably mounted on top of the conveyor platform 1. A second lifting member is connected to the first mounting plate 41 for driving the first mounting plate 41 to move upward and downward. The second lifting member can be a fourth pneumatic cylinder (not shown in the figure), meaning that the first mounting plate 41 is driven by a pneumatic cylinder. A press-fitting channel 411 is defined on the surface of the first mounting plate 41. The guide cylinder 42 is disposed within the press-fitting channel 411. A sealing member is provided around the outer wall of the guide cylinder 42. When the bearing is moved below the press-fitting channel 411, the guide cylinder 42 and the bearing are coaxial.

[0038] Reference Figure 8 、 Figure 9 The lower end of the guide cylinder 42 is integrally formed with a positioning portion 421 for inserting into the bearing, and the outer diameter of the positioning portion 421 is adapted to the inner diameter of the bearing outer ring; the outer peripheral wall of the guide cylinder 42 has a guide surface 422, and the guide surface 422 is annular around the central axis of the guide cylinder 42, and the outer diameter of the guide surface 422 gradually increases from top to bottom.

[0039] The guide surface 422 of the guide cylinder 42 is provided with a connecting groove 423, and the connecting groove 423 is annular around the central axis of the guide cylinder 42. The first mounting plate 41 is provided with a connecting block 44, and two connecting blocks 44 are spaced apart around the central axis of the press-fitting channel 411. Each connecting block 44 is slidably mounted on the first mounting plate 41 so as to be able to slide radially along the guide cylinder 42; the first mounting plate 41 is provided with a moving part for driving the connecting block 44 close to or away from the connecting groove 423. In this embodiment, the moving part can be set as a second clamping cylinder 45, and the two clamping ends of the second clamping cylinder 45 are respectively connected to the two connecting blocks 44 to drive the two connecting blocks 44 close to or away from each other. When the two connecting blocks 44 approach each other, the two connecting blocks 44 are inserted into the connecting groove 423 of the guide cylinder 42, so that the guide cylinder 42 is connected to the press-fitting channel 411 of the first mounting plate 41.

[0040] Reference Figure 7 、 Figure 8 The pressing cylinder 43 is slidably installed on the top of the first mounting plate 41 and is coaxially arranged with the guide cylinder 42. The inner diameter of the pressing cylinder 43 is adapted to the outer diameter of the guide cylinder 42. The first lifting member is arranged on the pressing cylinder 43 to drive the pressing cylinder 43 to move up and down. The first lifting member can be a fifth cylinder, that is, the sliding drive mode of the pressing cylinder 43 is cylinder drive.

[0041] It should be noted that, in this embodiment, the inner wall of the bearing has a guide surface, which is used to guide the guide cylinder 42; with this design, if the bearing is slightly deflected along the width direction of the sliding bar 21 during the transfer process, the setting of the guide surface ensures that the guide cylinder 42 can still be smoothly inserted into the bearing; at the same time, in conjunction with the guide surface 422 of the guide cylinder 42, when the press-fitting cylinder 43 moves downward, the press-fitting cylinder 43 corrects the guide cylinder 42 through the guide surface 422, thereby correcting the bearing to the set position.

[0042] Reference Figure 7 A loading barrel 5 for storing seals is installed on the side of the first mounting plate 41 away from the oil filling mechanism 3. The seal is sleeved on the outer peripheral wall of the loading barrel 5. A second mounting plate 51 is installed at the bottom of the loading barrel 5. The upper surface of the mounting plate is kept flush with the upper surface of the first mounting plate 41; a transfer plate 52 is slidably installed on the upper surface of the second mounting plate 51, and a transfer groove (not shown in the figure) is provided on the plate surface of the transfer plate 52. The transfer groove is a circular groove, which is opposite to the lower end of the loading barrel 5 for the seal on the outer peripheral wall of the loading barrel 5 to fall into. A counterweight block 56 is slidably installed on the outer peripheral wall of the loading barrel 5, and the counterweight block 56 forces the seal of the loading barrel 5 to slide into the transfer groove of the transfer plate 52.

[0043] The second mounting plate 51 is provided with a pushing member, which is used to force the transfer plate 52 to approach or move away from the first mounting plate 41, so as to transfer the seal in the transfer groove to the press-fitting channel 411 of the first mounting plate 41. The pushing member can be a sixth cylinder, that is, the sliding drive mode of the transfer plate 52 is cylinder drive (the cylinder drive mode is a conventional setting, so the specific installation method and action status of each cylinder will not be elaborated in detail).

[0044] Reference Figure 7 、 Figure 10 A third mounting plate 53 is fixedly mounted on the second mounting plate 51, the transfer plate 52 is located between the second mounting plate 51 and the third mounting plate 53, and a limiting sleeve 54 is fixedly mounted on the third mounting plate 53, and the limiting sleeve 54 is coaxially arranged with the loading barrel 5; the limiting sleeve 54 is provided with a limiting block 55, and a plurality of limiting blocks 55 are arranged at intervals around the central axis of the limiting sleeve 54, and each limiting block 55 is slidably mounted on the limiting sleeve 54 so as to be able to slide along the radial direction of the limiting sleeve 54.

[0045] The limiting sleeve 54 is provided with a second drive assembly 6, which is used to drive multiple limiting blocks 55 to slide synchronously toward or away from the center of the limiting sleeve 54, thereby limiting the free downward movement of the seal on the outer peripheral wall of the loading barrel 5 (i.e., controlling the opening and closing of the lower end of the loading barrel 5). The second drive assembly 6 includes a rotating ring 61, a connecting column 62, and a push cylinder 63. The rotating ring 61 is rotatably connected to the end surface of the limiting sleeve 54 and is coaxially arranged with the limiting sleeve 54. The connecting column 62 is provided with multiple corresponding limit blocks 55, and one end of each connecting column 62 is connected to a corresponding limit block 55. The rotating ring 61 is provided with multiple guide arc grooves 611, and the multiple guide arc grooves 611 are correspondingly arranged with the multiple connecting columns 62. One end of each connecting column 62 extends into the corresponding guide arc groove 611.

[0046] The guide arc groove 611 has a first point position 612 and a second point position 613. The distance from the first point position 612 to the center of the limit sleeve 54 is greater than the distance from the second point position 613 to the center of the limit sleeve 54. When the rotating ring 61 rotates and forces the connecting column 62 to slide from the first point position 612 to the second point position 613, the limit block 55 slides toward the center of the limit sleeve 54; the cylinder body of the pushing cylinder 63 is hinged to the third mounting plate 53, and the piston rod of the pushing cylinder 63 is hinged to the rotating ring 61. When the piston rod of the pushing cylinder 63 extends outward, the connecting column 62 is transferred from the first point position 612 to the second point position 613.

[0047] The implementation principle of Example 1 of the present application is as follows: After the bearings on the storage platform 8 are transferred to the conveying platform 1, they are grabbed onto the oiling plate 11 for greasing. After the greasing is completed, they are transferred back to the conveying platform 1. Through the cooperation of the sliding bar 21 and the positioning plate 22, the bearings are transferred to the flipping assembly 32 for flipping. After the flipping is completed, they are transferred to another set of oiling assemblies 31 for greasing the other end of the bearing. The positioning groove 221 of the positioning plate 22 can position the bearing, reduce the possibility of the bearing deflecting during the transfer process, and enable the bearing to be transferred on the conveying platform 1 as straight as possible, thereby improving the transfer efficiency and transfer accuracy of the bearing.

[0048] After the bearing is transferred via positioning plate 22 to below the press-fitting channel 411 of first mounting plate 41, the guide cylinder 42 and the bearing become coaxial. This forces the first mounting plate 41 downward, forcing the guide cylinder 42's positioning portion 421 to insert into the bearing. All connecting blocks 44 are then simultaneously driven to slide away from the guide cylinder 42, disconnecting the guide cylinder 42 from the first mounting plate 41. This allows the seal to be press-fitted from the outer wall of the guide cylinder 42 to the bearing's sealing position under the pressure of the press-fitting cylinder 43. After the seal is press-fitted, all connecting blocks 44 are driven to slide and insert into the connecting groove 423, reconnecting the guide cylinder 42 to the first mounting plate 41. The first mounting plate 41 is then raised, disengaging the guide cylinder 42's positioning portion 421 from the bearing, improving the overall ease of operation. The plug-in fit between the guide cylinder 42's positioning portion 421 and the bearing significantly improves the coaxiality between the guide cylinder 42 and the bearing, thereby enhancing the press-fitting effectiveness of the seal.

[0049] Example 2: This embodiment of the present application discloses a sealing component press-fitting device.

[0050] The difference between the sealing component press-fitting device disclosed in the embodiment of the present application and embodiment 1 is that: Reference Figure 11 In this embodiment, each connecting block 44 is provided with a docking groove 441 on the peripheral wall near the guide cylinder 42, and a docking strip 442 is slidably installed in the docking groove 441, and the sliding direction of the docking strip 442 is consistent with the sliding direction of the connecting block 44; a first spring 443 is installed between the docking strip 442 and the docking groove 441, and one end of the first spring 443 is connected to the docking strip 442, and the other end is connected to the inner wall of the docking groove 441. Under normal circumstances, the first spring 443 forces the docking strip 442 to be partially exposed in the docking groove 441, and it should be noted that the length of the exposed part of the docking strip 442 is greater than the thickness of the press-fitting cylinder 43 (this thickness is the difference between the outer diameter and the inner diameter of the press-fitting cylinder 43).

[0051] An escape groove 431 is formed on the outer peripheral wall of the press-fitting cylinder 43 for the docking strip 442 to extend into. One end of the escape groove 431 passes through the lower end surface of the press-fitting cylinder 43 .

[0052] The implementation principle of Example 2 of the present application is as follows: After the seal is pressed from the outer peripheral wall of the guide cylinder 42 to the sealing position of the bearing under the pressure of the press-fitting cylinder 43, all the connecting blocks 44 are driven to slide toward the center of the guide cylinder 42, forcing the docking strips 442 of the connecting blocks 44 to pass through the avoidance grooves 431 and insert into the connecting grooves 423, thereby achieving docking between the docking strips 442 and the guide cylinder 42. Then, the first mounting plate 41 is driven to rise (the press-fitting cylinder 43 remains stationary), so that the first mounting plate 41 can pull the guide cylinder 42, forcing the outer peripheral wall of the guide cylinder 42 to separate from the inner peripheral wall of the seal. During the process of the guide cylinder 42 being lifted away from the bearing, the press-fitting cylinder 43 remains stationary, which can reduce the possibility of the seal being simultaneously pulled out due to the friction between the guide cylinder 42 and the seal, thereby improving the press-fitting effect of the seal.

[0053] Example 3: This embodiment of the present application discloses a sealing component press-fitting device.

[0054] The difference between the sealing component press-fitting device disclosed in the embodiment of the present application and embodiment 2 is that: Reference Figure 12 In this embodiment, the outer wall of the guide cylinder 42 is provided with a plurality of sliding grooves 424, and the plurality of sliding grooves 424 are arranged at intervals around the central axis of the guide cylinder 42, and an abutting arc piece 425 is slidably installed in each sliding groove 424; a second spring 426 is installed between the abutting arc piece 425 and the sliding groove 424, and one end of the second spring 426 is fixedly connected to the abutting arc piece 425, and the other end is fixedly connected to the inner wall of the sliding groove 424. Under normal circumstances, the second spring 426 forces the outer arc surface of the abutting arc piece 425 to remain flush with the outer wall of the guide cylinder 42; each abutting arc piece 425 is connected to a sliding rod 427, one end of the sliding rod 427 is fixedly connected to the abutting arc piece 425, and the other end extends into the guide cylinder 42.

[0055] The guide cylinder 42 is provided with a sliding assembly 7. When the press-fitting cylinder 43 is sleeved onto the guide cylinder 42 and the seal is press-fitted into the sealing position of the bearing, the sliding assembly 7 forces all the abutting arc pieces 425 to slide toward the center of the guide cylinder 42. In this embodiment, the sliding assembly 7 includes a sliding block 71, a connecting rod 72, and a push rod 73. The sliding block 71 is located within the guide cylinder 42; the connecting rod 72 is provided with a plurality of corresponding abutting arc pieces 425. One end of each connecting rod 72 is hinged to the sliding block 71, and the other end is hinged to the sliding rod 427 corresponding to the abutting arc piece 425. It should be noted that when the outer arc surface of the abutting arc piece 425 is flush with the outer peripheral wall of the guide cylinder 42, the longitudinal direction of the connecting rod 72 rotates to align with the longitudinal direction of the sliding rod 427.

[0056] The push rod 73 is arranged vertically, and the upper end of the push rod 73 is fixedly connected to the inner wall of the press-fitting cylinder 43. When the press-fitting cylinder 43 is sleeved on the guide cylinder 42 and the seal is pressed onto the bearing, the lower end of the push rod 73 pushes the sliding block 71 and forces all the abutting arc pieces 425 to slide toward the center of the guide cylinder 42.

[0057] The implementation principle of Example 3 of the present application is as follows: when the press-fitting cylinder 43 moves downward and presses the seal on the outer wall of the guide cylinder 42 into the sealing position of the bearing, the press-fitting cylinder 43 pushes the sliding block 71 through the pushing rod 73. Under the action of multiple connecting rods 72, all the abutting arc pieces 425 are forced to slide toward the center of the guide cylinder 42 to reduce the contact area between the guide cylinder 42 and the seal, thereby facilitating the smooth removal of the guide cylinder 42.

[0058] Then, the connecting strip 442 of the connecting block 44 is forced to insert into the connecting groove 423, forcing the first mounting plate 41 to rise, driving the guide cylinder 42 to rise, and thus separating the guide cylinder 42 from the seal. After the guide cylinder 42 is separated from the seal, the pressing cylinder 43 is driven to rise, and the abutting arc piece 425 is restored to its original position, facilitating the installation of the next seal, thereby improving the operational convenience of the entire structure.

[0059] Example 4: This embodiment of the present application discloses a wheel hub bearing assembly line.

[0060] A wheel hub bearing assembly line includes a first workbench, a second workbench and the above-mentioned sealing component pressing device. The first workbench and the second workbench are arranged side by side, the storage table 8 is installed on the first workbench, and the conveying table 1 is installed on the second workbench.

[0061] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sealing component press-fitting device, characterized in that: The invention comprises a conveying platform (1), a transfer mechanism (2), an oiling mechanism (3) and a pressing mechanism (4), wherein the transfer mechanism (2) is arranged on the conveying platform (1) for transferring the bearing on the conveying platform (1), and the oiling mechanism (3) and the pressing mechanism (4) are arranged in sequence along the conveying direction of the conveying platform (1); the transfer mechanism (2) comprises a sliding bar (21), a positioning plate (22) and a first driving component, the sliding bar (21) is slidably installed on one side of the conveying platform (1), the positioning plate (22) is placed on the surface of the conveying platform (1) and connected to the sliding bar (21), and a positioning groove (221) for the bearing to be embedded is opened on one side of the positioning plate (22); the first driving component is arranged on one side of the conveying platform (1) for driving the sliding bar (21) to slide.

2. A sealing component press-fitting device according to claim 1, characterized in that: The press-fitting mechanism (4) includes a first mounting plate (41), a guide cylinder (42), a press-fitting cylinder (43) and a first lifting member. The first mounting plate (41) is arranged on the top of the conveying platform (1). The first mounting plate (41) has a press-fitting channel (411). The guide cylinder (42) is arranged in the press-fitting channel (411). The sealing member is used to sleeve the outer peripheral wall of the guide cylinder (42). When the bearing is transferred to the bottom of the press-fitting channel (411), the guide cylinder (42) and the bearing are coaxial. The press-fitting cylinder (43) is slidably mounted on the top of the first mounting plate (41) and is coaxially arranged with the guide cylinder (42). The inner diameter of the press-fitting cylinder (43) is adapted to the outer diameter of the guide cylinder (42). The first lifting member is arranged on the press-fitting cylinder (43) to drive the press-fitting cylinder (43) to move up and down.

3. A sealing component press-fitting device according to claim 2, characterized in that: A loading barrel (5) for storing sealing members is provided on one side of the first mounting plate (41), and the sealing members are sleeved on the outer peripheral wall of the loading barrel (5); a second mounting plate (51) is provided at the bottom of the loading barrel (5), and the upper surface of the mounting plate is kept flush with the upper surface of the first mounting plate (41); a transfer plate (52) is slidably installed on the upper surface of the second mounting plate (51), and a transfer groove is provided on the plate surface of the transfer plate (52) for the sealing members to fall into; the second mounting plate (51) is provided with a pushing member, and the pushing member is used to force the transfer plate (52) to approach or move away from the first mounting plate (41) so as to transfer the sealing members in the transfer groove to the press-fitting channel (411) of the first mounting plate (41).

4. A sealing component press-fitting device according to claim 3, characterized in that: A third mounting plate (53) is provided on the second mounting plate (51), and a limiting sleeve (54) is provided on the third mounting plate (53), and the limiting sleeve (54) is coaxially arranged with the loading barrel (5); the limiting sleeve (54) is provided with a limiting block (55), and a plurality of the limiting blocks (55) are spaced around the central axis of the limiting sleeve (54), and each of the limiting blocks (55) is slidably mounted on the limiting sleeve (54) so ​​as to be able to slide radially along the limiting sleeve (54); the limiting sleeve (54) is provided with a second driving assembly (6), and the second driving assembly (6) is used to drive the plurality of limiting blocks (55) to slide synchronously toward or away from the center of the limiting sleeve (54).

5. The sealing component press-fitting device according to claim 2, characterized in that: The first mounting plate (41) is slidably mounted on the top of the conveying platform (1), and the first mounting plate (41) is connected to a second lifting member for driving the first mounting plate (41) to be lifted and lowered; the lower end of the guide cylinder (42) has a positioning portion (421) for being inserted into the bearing, and the outer diameter of the positioning portion (421) is adapted to the inner diameter of the outer ring of the bearing; the outer peripheral wall of the guide cylinder (42) has a guide surface (422), and the guide surface (422) is annular around the central axis of the guide cylinder (42), and the outer diameter of the guide surface (422) gradually increases from top to bottom.

6. A sealing component press-fitting device according to claim 5, characterized in that: The outer peripheral wall of the guide cylinder (42) is provided with a connecting groove (423), the first mounting plate (41) is provided with a connecting block (44), a plurality of the connecting blocks (44) are spaced apart around the central axis of the press-fitting channel (411), and each of the connecting blocks (44) is slidably mounted on the first mounting plate (41) so as to be able to slide radially along the guide cylinder (42); the first mounting plate (41) is provided with a moving part for driving the connecting block (44) to approach or move away from the connecting groove (423).

7. A sealing component press-fitting device according to claim 6, characterized in that: Each of the connecting blocks (44) is provided with a docking groove (441) on the peripheral wall close to the guide cylinder (42), a docking strip (442) is slidably installed in the docking groove (441), a first spring (443) is provided between the docking strip (442) and the docking groove (441), the first spring (443) forces the docking strip (442) to be partially exposed in the docking groove (441), and the length of the exposed portion of the docking strip (442) is greater than the thickness of the press-fitting cylinder (43); the outer peripheral wall of the press-fitting cylinder (43) is provided with an avoidance groove (431) for the docking strip (442) to extend into, and one end of the avoidance groove (431) passes through the lower end surface of the press-fitting cylinder (43).

8. The sealing component press-fitting device according to claim 7, characterized in that: The outer peripheral wall of the guide cylinder (42) is provided with a plurality of sliding grooves (424), and the plurality of sliding grooves (424) are arranged at intervals around the central axis of the guide cylinder (42), and a contact arc piece (425) is slidably installed in each of the sliding grooves (424); a second spring (426) is provided between the contact arc piece (425) and the sliding groove (424), and the second spring (426) forces the outer arc surface of the contact arc piece (425) to remain flush with the outer peripheral wall of the guide cylinder (42); the guide cylinder (42) is provided with a sliding assembly (7), and when the press-fitting cylinder (43) is sleeved on the guide cylinder (42) and the seal is press-fitted on the bearing, the sliding assembly (7) forces all the contact arc pieces (425) to slide toward the center of the guide cylinder (42).

9. The sealing component press-fitting device according to claim 8, characterized in that: Each of the abutting arc pieces (425) is connected to a sliding rod (427), and one end of the sliding rod (427) away from the abutting arc piece (425) extends into the guide cylinder (42); the sliding assembly (7) includes a sliding block (71), a connecting rod (72) and a pushing rod (73), the sliding block (71) is arranged in the guide cylinder (42), the connecting rod (72) is provided with a plurality of and corresponding to the plurality of abutting arc pieces (425), each of the One end of the connecting rod (72) is hinged to the sliding block (71), and the other end is hinged to the sliding rod (427) corresponding to the abutting arc piece (425); one end of the pushing rod (73) is connected to the inner wall of the press-fitting cylinder (43). When the press-fitting cylinder (43) is sleeved on the guide cylinder (42) and the seal is pressed onto the bearing, the pushing rod (73) pushes the sliding block (71) and forces all the abutting arc pieces (425) to slide toward the center of the guide cylinder (42).

10. A wheel hub bearing assembly line, characterized by: A sealing component pressing device comprising the sealing component pressing device according to any one of claims 1 to 9.

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