Conical roller bearing assembly machine with automatic roll orientation function and assembly method

Abstract

The application relates to the field of bearing processing, and particularly discloses a tapered roller bearing assembling machine with a roller automatic orientation function and an assembling method. The tapered roller bearing assembling machine comprises an orientation mold, the orientation mold is provided with an orientation port, the orientation port is provided with a reverse small-end identification position, a forward centroid identification position, a large-end identification position, a reverse centroid identification position and a forward small-end identification position; the width of the large-end identification position is the largest, the width from the reverse small-end identification position to the forward centroid identification position increases, the width from the large-end identification position to the reverse centroid identification position and the forward small-end identification position decreases; the distance between the forward centroid identification position and the large-end identification position is not greater than the large-end centroid height of the roller; the distance between the forward centroid identification position and the forward small-end identification position is not less than the small-end centroid height of the roller; and the distance between the reverse centroid identification position and the reverse small-end identification position is not less than the small-end centroid height of the roller. The above-described tapered roller bearing assembling machine has the advantages of simple structure, reliable operation and low equipment cost.

Description

Technical Field

[0001] This invention relates to the field of machining, and in particular to a tapered roller bearing assembly machine and assembly method with automatic roller orientation function. Background Technology

[0002] Tapered roller bearings are a common type of bearing, typically designed to withstand radial loads, but can also bear axial loads, offering the advantage of high load-carrying capacity. Tapered roller bearings are separable bearings, with the inner ring, outer ring, and cage assembly machined and assembled separately, among which the cage assembly involves a significant amount of work.

[0003] Due to the structural characteristics of tapered rollers, the rollers need to be aligned during assembly. Manual alignment is inefficient and carries the risk of incorrect alignment.

[0004] Chinese invention patent application CN 108006088A discloses a blanking device and tapered roller bearing assembly equipment, which can realize the orderly feeding of rollers and the automated assembly operation between rollers and cages. However, the above-mentioned blanking device has a relatively complex structure and occupies a large space. At the same time, the use of a robotic arm to transfer rollers also has the problem of high cost.

[0005] The purpose of this application is to address the shortcomings of the aforementioned assembly equipment by providing a tapered roller bearing assembly machine with a simple structure and high assembly efficiency. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a tapered roller bearing assembly machine and assembly method with automatic roller orientation function, which has the advantages of simple structure, reliable operation and low equipment cost.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tapered roller bearing assembly machine with automatic roller orientation function, comprising at least:

[0008] The sorting module includes a vibratory feeder, a orientation mold, and a guide tube. The orientation mold has an orientation channel, the inlet of which is connected to the outlet of the vibratory feeder. The bottom surface of the orientation channel has an orientation opening, and the inlet of the guide tube is located below the orientation opening and is connected to the orientation opening.

[0009] The direction of the recognition port extending along the recognition channel is the normal direction. The recognition port is provided with a reverse small end recognition position, a positive centroid recognition position, a large end recognition position, a reverse centroid recognition position, and a positive small end recognition position in sequence along the normal direction. The width of the large end recognition position is greater than that of the reverse small end recognition position, the positive centroid recognition position, the reverse centroid recognition position, and the positive small end recognition position. The width gradually increases from the reverse small end recognition position to the positive centroid recognition position, and gradually decreases from the large end recognition position, the reverse centroid recognition position, and the positive small end recognition position.

[0010] The distance between the positive center of mass identification position and the large end identification position is not greater than the height of the large end center of mass of the roller; the distance between the positive center of mass identification position and the positive small end identification position is not less than the height of the small end center of mass of the roller; the distance between the reverse center of mass identification position and the reverse small end identification position is not less than the height of the small end center of mass of the roller.

[0011] A roller guiding module includes a roller controller and a position adjustment component. The position adjustment component is used to adjust the position of the roller controller. The roller controller includes a roller guide head, which has a roller channel. The feed inlet of the roller channel is connected to a guide pipe, and the feed inlet to the discharge outlet of the roller channel extends from top to bottom.

[0012] The cage mounting module includes a centering mold, and the discharge port of the roller guide head corresponds to the centering mold.

[0013] The vibratory feeder is used to adjust the orientation of the rollers and convey them one by one to the orientation channel. As the rollers move along the orientation channel, they enter the orientation port with their smaller end facing downwards. The guide tube guides the rollers to the roller guide head and finally drops them onto the centering mold and cage turntable.

[0014] The orientation mold of this application relies solely on the gravity of the rollers for orientation sorting, which has the advantages of simple structure and reliable operation.

[0015] Preferably, the system also includes a frame, on which an assembly table and a sorting table are provided, with the sorting table positioned higher than the assembly table; the vibratory feeder is positioned on the sorting table, and the roller guide module and cage mounting module are positioned on the assembly table.

[0016] Preferably, a rotary drive unit is provided below the assembly table, the rotary drive unit is connected to the centering mold, and drives the centering mold to rotate.

[0017] After the assembly of one roller is completed, the rotary drive unit drives the centering mold and cage to rotate, and performs the assembly operation of the next roller.

[0018] Preferably, the centering mold includes a cage centering shaft and a roller centering shaft, wherein the cage centering shaft and the roller centering shaft are coaxially arranged, and the diameter of the cage centering shaft is larger than the diameter of the roller centering shaft; the outer surface of the roller centering shaft is provided with several arc-shaped notches.

[0019] The cage centering shaft is used to mount and position the cage. During assembly, the cage is fitted onto the cage centering shaft, and the roller centering shaft is located inside the cage. The arc-shaped notch is designed to provide space for the roller to enter. After the roller is inserted into the notch, the arc-shaped notch guides the roller to tilt towards the cage and into the corresponding pocket, completing the assembly operation.

[0020] Preferably, the cage centering shaft and the roller centering shaft are separately configured, and the cage centering shaft is sleeved on the outside of the roller centering shaft; the inner side of the cage centering shaft is provided with a protrusion that matches the arc-shaped notch.

[0021] Preferably, the position adjustment assembly includes a horizontal adjustment block, a vertical adjustment block, a horizontal drive unit, and a vertical drive unit. The horizontal drive unit is used to drive the horizontal adjustment block to move. The vertical adjustment block is movably mounted on the horizontal adjustment block, and the vertical drive unit is used to drive the vertical adjustment block to move up and down relative to the horizontal adjustment block. The roller controller is mounted on the vertical adjustment block.

[0022] Preferably, the roller guide head has a control hole on one side, which communicates with the roller channel; the roller controller further includes an on / off control unit, which includes a plug rod and an on / off drive member, the plug rod is aligned with the control hole, and the on / off drive member is used to drive the plug rod to move axially along the control hole.

[0023] When the on / off control unit drives the insert rod to insert into the control hole into the roller channel, the roller channel closes, and the roller is blocked by the insert rod and cannot pass through. However, when the on / off control unit controls the insert rod to retract from the roller channel, the roller channel opens, and the roller can pass through smoothly. The on / off control unit can notify the roller whether it has passed through, and it can also buffer the movement of the roller and control the speed at which the roller is sent out from the roller guide head.

[0024] Preferably, the outlet end of the directional channel extends toward the center of the vibratory feeder.

[0025] When the roller fails to recognize the direction by moving along the recognition channel through the recognition port, it can continue to move along the recognition channel and return to the vibratory plate.

[0026] Preferably, the orientation port extends from the reverse little-endian identification position towards the inlet end of the orientation channel, and the width of the extended portion is not greater than the width of the reverse little-endian identification position; the orientation port extends from the forward little-endian identification position towards the outlet end of the orientation channel, and the width of the extended portion is not greater than the width of the forward little-endian identification position.

[0027] Extending the orientation opening to both ends increases its area, effectively improving the smoothness of the roller's passage. Simultaneously, as the roller moves towards the extended section, there's a higher probability that some will slip into the orientation opening and move along its extension. The extension guides the roller's movement, preventing excessive deviation from the orientation opening's normal direction and improving the orientation success rate.

[0028] The assembly method for tapered roller bearings with automatic roller orientation function uses the tapered roller bearing assembly machine described above.

[0029] At least the following steps are included:

[0030] S1 Loading: Place the rollers in the vibratory feeder and place the cage to be assembled on the centering mold at the same time;

[0031] S2 Position Adjustment: The position adjustment component operates to adjust the position of the roller guide head relative to the centering mold and the cage;

[0032] S3 sorting: The vibratory feeder works to send the rollers one by one from the discharge port into the direction channel of the direction mold;

[0033] If the small end of the roller enters the identification port forward, when the center of mass of the roller passes the positive center of mass identification position, the small end of the roller has not yet reached the positive small end identification position. The roller falls directly into the identification port with the small end facing down, thus completing the sorting.

[0034] If the large end of the roller enters the orientation port in front, when the center of mass of the roller passes the forward center of mass identification position, the large end of the roller has already passed the large end identification position, and the roller cannot enter the orientation port. The roller continues to move forward. When the small end of the roller passes the reverse small end identification position, the center of mass of the roller has not yet reached the reverse center of mass identification position. The roller falls into the orientation port with the small end facing down, completing the sorting.

[0035] S4 Assembly: The sorted rollers are guided to the centering mold via the guide tube and roller guide head, and assembled with the cage to complete the assembly operation of a single roller. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the tapered roller structure;

[0037] Figure 2 This is a schematic diagram of the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0038] Figure 3 This is a top view of the sorting module in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0039] Figure 4 This is a schematic diagram of the sorting module in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0040] Figure 5 This is a schematic diagram of the orientation mold in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0041] Figure 6 This is a schematic diagram of the cooperation between the roller guide module and the cage mounting module in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0042] Figure 7 This is a schematic diagram of the roller guiding module in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0043] Figure 8 This is a cross-sectional view of the roller controller in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0044] Figure 9 This is a schematic diagram of the centering mold in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0045] Figure 10 This is an exploded view of the centering mold in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0046] Figure 11 This is a schematic diagram of the first type of orientation port in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0047] Figure 12 This is a schematic diagram of the second type of orientation port in the tapered roller bearing assembly machine with automatic roller orientation function in this embodiment;

[0048] Figure 13 This is a schematic diagram of the tapered roller bearing assembly machine with automatic roller orientation recognition function performing orientation recognition operation in this embodiment; at this time, the small end of the roller faces forward, and the center of mass is located at the positive center of mass recognition position;

[0049] Figure 14 This is a schematic diagram of the tapered roller bearing assembly machine with automatic roller orientation recognition function performing orientation recognition operation in this embodiment; at this time, the large end of the roller faces forward, and the center of mass is located at the positive center of mass recognition position;

[0050] Figure 15 This is a schematic diagram of the tapered roller bearing assembly machine with automatic roller orientation recognition function performing orientation recognition operation in this embodiment; at this time, the large end of the roller faces forward, and the center of mass is located at the reverse center of mass recognition position. Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Example

[0052] like Figure 2 As shown, a tapered roller bearing assembly machine with automatic roller orientation function includes a frame, a sorting module, a roller guiding module, and a cage mounting module.

[0053] Among them, such as Figures 2-5 As shown, the sorting module includes a vibratory feeder 21, a orientation mold 22, and a guide tube 23. The orientation mold 22 has an orientation channel 221, the inlet of which is connected to the outlet of the vibratory feeder 21. The bottom surface of the orientation channel 221 has an orientation opening 5, and the inlet of the guide tube 23 is located below and connected to the orientation opening 5. At least a portion of the guide tube 23 is a flexible hose.

[0054] like Figures 3-5 As shown, the outlet end of the orientation channel 221 extends towards the center of the vibratory feeder 21. When the roller fails to be oriented through the orientation port 5 while moving along the orientation channel 221, it can continue moving along the orientation channel 221 and return to the vibratory feeder 21.

[0055] like Figure 1 As shown, specifically, the frame is provided with an assembly table 11 and a sorting table 12. The sorting table 12 is higher than the assembly table 11. The vibratory feeder 21 is set on the sorting table 12. The roller guide module and the cage mounting module are set on the assembly table 11.

[0056] The vibratory feeder 21 is used to adjust the posture of the rollers and transport them one by one to the orientation channel 221. As the rollers move along the orientation channel 221, they enter the orientation port 5 with the smaller end facing down. The guide tube 23 is used to guide the rollers to the roller guide head 321 and finally drop them onto the centering mold 42 and the cage turntable.

[0057] like Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, the roller guiding module includes a roller controller 32 and a position adjustment component 31. The position adjustment component 31 is used to adjust the position of the roller controller 32. The roller controller 32 includes a roller guide head 321. The roller guide head 321 is provided with a roller channel 3211. The feed inlet of the roller channel 3211 is connected to the guide pipe 23, and the feed inlet to the discharge outlet of the roller channel 3211 extends from top to bottom.

[0058] like Figure 6 and Figure 7 As shown, specifically, the position adjustment component 31 includes a horizontal adjustment block 313, a vertical adjustment block 312, a horizontal drive unit 314, and a vertical drive unit 311. The horizontal drive unit 314 drives the horizontal adjustment block 313 to move. The vertical adjustment block 312 is movably mounted on the horizontal adjustment block 313, and the vertical drive unit 311 drives the vertical adjustment block 312 to move up and down relative to the horizontal adjustment block 313. The roller controller 32 is mounted on the vertical adjustment block 312.

[0059] like Figure 8 As shown, a control hole is provided on one side of the roller guide head 321, and the control hole is connected to the roller channel 3211; the roller controller 32 also includes an on / off control unit 322, which includes a plug rod 3222 and an on / off drive member 3221. The plug rod 3222 is aligned with the control hole, and the on / off drive member 3221 is used to drive the plug rod 3222 to move axially along the control hole.

[0060] When the on / off control unit 322 drives the insertion rod 3222 to insert into the control hole into the roller channel 3211, the roller channel 3211 closes, and the roller is blocked by the insertion rod 3222 and cannot pass through. However, when the on / off control unit 322 controls the insertion rod 3222 to retract from the roller channel 3211, the roller channel 3211 opens, and the roller can pass through smoothly. The on / off control unit 322 can notify the roller whether it has passed through, and can also buffer the movement of the roller and control the speed at which the roller is sent out from the roller guide head 321.

[0061] like Figure 2 , Figure 6 , Figure 9 and Figure 10As shown, the cage mounting module includes a centering mold 42, and the discharge port of the roller guide head 321 corresponds to the centering mold 42. The centering mold 42 includes a cage centering shaft 422 and a roller centering shaft 421, which are coaxially arranged, and the diameter of the cage centering shaft 422 is larger than the diameter of the roller centering shaft 421. The outer surface of the roller centering shaft 421 is provided with several arc-shaped notches 4211, and the area of ​​the arc-shaped notches 4211 is less than half the area of ​​the small end of the roller.

[0062] The cage centering shaft 422 is used to mount and position the cage 6. During assembly, the cage is fitted onto the cage centering shaft 422, and the roller centering shaft 421 is located inside the cage. The arc-shaped notch 4211 is designed to provide space for the roller to enter. After the roller is inserted into the notch, the arc-shaped notch 4211 can guide the roller to tilt towards the cage and enter the corresponding pocket, completing the assembly operation.

[0063] like Figure 10 As shown, the cage centering shaft 422 and the roller centering shaft 421 are separately disposed, and the cage centering shaft 422 is sleeved on the outside of the roller centering shaft 421. The inner side of the cage centering shaft 422 is provided with a protrusion 4221 that matches the arc-shaped notch 4211.

[0064] like Figure 2 and Figure 6 As shown, a rotary drive unit 41 is provided below the assembly table 11. The rotary drive unit 41 is connected to the centering mold 42 and drives the centering mold 42 to rotate. After the assembly of one roller is completed, the rotary drive unit 41 drives the centering mold 42 and the cage to rotate and perform the assembly operation of the next roller.

[0065] Specifically, such as Figure 12 As shown, the direction in which the recognition port 5 extends along the recognition channel 221 is defined as the normal direction 56. Figure 1 As shown, the diameter of the large end of the roller is defined as D1, the diameter of the small end of the roller is defined as D2, the diameter of the section where the center of mass of the roller is located is defined as D3, the distance between the section where the center of mass of the roller is located and the small end face is defined as the height of the center of mass of the small end, denoted as H1, and the distance between the section where the center of mass of the roller is located and the large end face is defined as the height of the center of mass of the large end, denoted as H2.

[0066] like Figure 11 and Figure 12As shown, the recognition port 5 is provided with a reverse little-endian recognition position 51, a forward centroid recognition position 52, a big-endian recognition position 53, a reverse centroid recognition position 54, and a forward little-endian recognition position 55 in sequence along the normal direction 56. The width of the reverse little-endian recognition position 51 is denoted as L1, the width of the forward centroid recognition position 52 is denoted as L2, the width of the big-endian recognition position 53 is denoted as L3, the width of the reverse centroid recognition position 54 is denoted as L4, and the width of the forward little-endian recognition position 55 is denoted as L5.

[0067] like Figure 11 and Figure 12 As shown, L3 > L2 = L4, L2 > L1, L2 > L5. The width L3 of the large end identification position 53 is not greater than the diameter D1 of the large end of the roller, the width L1 of the reverse small end identification position 51 is not less than the diameter D2 of the small end of the roller, the width L5 of the forward small end identification position 55 is not less than the diameter D2 of the small end of the roller, and the width L2 of the forward centroid identification position 52 and the width L4 of the reverse centroid identification position 54 are both equal to the diameter D3 of the section where the centroid of the roller is located.

[0068] like Figure 11 and Figure 12 As shown, in one specific implementation, the width gradually increases from the reverse little-endian identification position 51 to the forward centroid identification position 52, and gradually decreases from the big-endian identification position 53, the reverse centroid identification position 54 to the forward little-endian identification position 55.

[0069] like Figure 11 and Figure 12 As shown, the distance between the positive centroid recognition position 52 and the large end recognition position 53 is denoted as H3, and H3 is not greater than the large end centroid height H2 of the roller. The distance between the positive centroid recognition position 52 and the positive small end recognition position 55 is denoted as H4, and H4 is not less than the small end centroid height H1 of the roller. The distance between the reverse centroid recognition position 54 and the reverse small end recognition position 51 is denoted as H5, and H5 is not less than the small end centroid height H1 of the roller. The maximum inscribed circle diameter of the recognition opening 5 is denoted as d, then d ≥ D1.

[0070] When sorting roller 7, if the small end of roller 7 enters the orientation opening 5 forward, that is... Figure 13 As shown, when the center of mass of roller 7 passes the forward center of mass identification position 52, the small end of roller 7 has not yet reached the forward small end identification position 55. Roller 7 falls directly into the identification port 5 with the small end facing down, thus completing the sorting.

[0071] If the large end of roller 7 enters the orientation port 5 in front, that is... Figure 14 As shown, when the center of mass of roller 7 passes the forward center of mass identification bit 52, the large end of roller 7 has already passed the large end identification bit 53, and roller 7 cannot enter the orientation port 5, so roller 7 continues to move forward. When the small end of roller 7 passes the reverse small end identification bit 51, the center of mass of roller 7 has not yet reached the reverse center of mass identification bit 54, that is... Figure 15As shown, roller 7 falls into sorting port 5 with its small end facing downwards, completing the sorting process.

[0072] Regardless of whether the roller 7 enters the orientation slot 5 with its large end or small end, it can enter the orientation slot 5 in the correct posture with its small end facing down under the guidance of gravity, thus completing the orientation sorting.

[0073] like Figures 12-15 As shown, the recognition port 5 extends from the reverse little-endian recognition position 51 towards the inlet end of the recognition channel 221, and the width of the extended portion is not greater than the width of the reverse little-endian recognition position 51. The recognition port 5 extends from the forward little-endian recognition position 55 towards the outlet end of the recognition channel 221, and the width of the extended portion is not greater than the width of the forward little-endian recognition position 55.

[0074] Extending the orientation opening 5 to both ends increases its area, effectively improving the smoothness of the roller's passage. Simultaneously, when the roller reaches the extended portion, there is a significant probability that it will partially slip into the orientation opening 5 and move along the extended portion. The extended portion guides the roller's movement direction, preventing the roller's posture from deviating excessively from the normal 56 of the orientation opening 5, thus improving the orientation success rate.

[0075] like Figures 12-15 As shown, in one specific implementation, the recognition port 5 is quadrilateral, with its two diagonals perpendicular to each other. The extension direction of the longer diagonal is the normal 56. The length of the shorter diagonal is denoted as S, where S-D1 = 1~5mm. The reverse small end recognition position 51 and the forward centroid recognition position 52 are positioned relative to the shorter diagonal near the inlet end of the recognition channel 221. The large end recognition position 53, the reverse centroid recognition position 54, and the forward small end recognition position 55 are positioned relative to the shorter diagonal near the outlet end of the recognition channel 221.

[0076] The tapered roller bearing assembly machine of this application can sort rollers by gravity alone, and has the advantages of simple structure and reliable operation.

[0077] The assembly method for tapered roller bearings with automatic roller orientation function uses the tapered roller bearing assembly machine described above.

[0078] At least the following steps are included:

[0079] S1 Loading: Place the roller in the vibratory plate 21, and at the same time place the cage to be assembled on the core mold 42;

[0080] S2 Position Adjustment: Position adjustment component 31 operates to adjust the position of roller guide head 321 relative to centering mold 42 and cage.

[0081] S3 Sorting: The vibratory feeder 21 operates, feeding the rollers one by one from the discharge port into the orientation channel 221 of the orientation mold 22;

[0082] If the small end of the roller enters the identification port 5 forward, when the center of mass of the roller passes the positive center of mass identification position 52, the small end of the roller has not yet reached the positive small end identification position 55. The roller falls directly into the identification port 5 with the small end facing down, thus completing the sorting.

[0083] If the large end of the roller enters the orientation port 5 in front, when the center of mass of the roller passes the forward center of mass identification position 52, the large end of the roller has already passed the large end identification position 53, and the roller cannot enter the orientation port 5. The roller continues to move forward. When the small end of the roller passes the reverse small end identification position 51, the center of mass of the roller has not yet reached the reverse center of mass identification position 54. The roller falls into the orientation port 5 with the small end facing down, completing the sorting.

[0084] S4 Assembly: The sorted rollers are guided to the centering mold 42 via the guide tube 23 and roller guide head 321, where they are assembled with the cage to complete the assembly operation of a single roller.

[0085] S5 Indexing: The rotary drive unit 41 operates, driving the centering mold 42 to rotate, repeating steps S3-S4, to perform the assembly operation of the next roller.

[0086] In summary, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tapered roller bearing assembly machine with automatic roller orientation function, characterized in that, At least including: The sorting module includes a vibratory feeder, a orientation mold, and a guide tube. The orientation mold has an orientation channel, the inlet of which is connected to the outlet of the vibratory feeder. The bottom surface of the orientation channel has an orientation opening, and the inlet of the guide tube is located below the orientation opening and is connected to the orientation opening. The direction of the recognition port extending along the recognition channel is the normal direction. The recognition port is provided with a reverse small end recognition position, a positive centroid recognition position, a large end recognition position, a reverse centroid recognition position, and a positive small end recognition position in sequence along the normal direction. The width of the large end recognition position is greater than that of the reverse small end recognition position, the positive centroid recognition position, the reverse centroid recognition position, and the positive small end recognition position. The width gradually increases from the reverse small end recognition position to the positive centroid recognition position, and gradually decreases from the large end recognition position, the reverse centroid recognition position, and the positive small end recognition position. The distance between the positive center of mass identification position and the large end identification position is not greater than the height of the large end center of mass of the roller; the distance between the positive center of mass identification position and the positive small end identification position is not less than the height of the small end center of mass of the roller; the distance between the reverse center of mass identification position and the reverse small end identification position is not less than the height of the small end center of mass of the roller. A roller guiding module includes a roller controller and a position adjustment component. The position adjustment component is used to adjust the position of the roller controller. The roller controller includes a roller guide head, which has a roller channel. The feed inlet of the roller channel is connected to a guide pipe, and the feed inlet to the discharge outlet of the roller channel extends from top to bottom. The cage mounting module includes a centering mold, and the discharge port of the roller guide head corresponds to the centering mold.

2. The tapered roller bearing assembly machine according to claim 1, characterized in that: It also includes a frame, on which an assembly table and a sorting table are provided, with the sorting table being set higher than the assembly table; the vibratory feeder is set on the sorting table, and the roller guide module and the cage mounting module are set on the assembly table.

3. The tapered roller bearing assembly machine according to claim 2, characterized in that: A rotary drive unit is provided below the assembly table. The rotary drive unit is connected to the centering mold and drives the centering mold to rotate.

4. The tapered roller bearing assembly machine according to claim 1, characterized in that: The centering mold includes a cage centering shaft and a roller centering shaft. The cage centering shaft and the roller centering shaft are coaxially arranged, and the diameter of the cage centering shaft is larger than the diameter of the roller centering shaft. The outer surface of the roller centering shaft is provided with several arc-shaped notches.

5. The tapered roller bearing assembly machine according to claim 4, characterized in that: The cage centering shaft and the roller centering shaft are separately configured, and the cage centering shaft is sleeved on the outside of the roller centering shaft; the inner side of the cage centering shaft is provided with a protrusion that matches the arc-shaped notch.

6. The tapered roller bearing assembly machine according to claim 1, characterized in that: The position adjustment assembly includes a horizontal adjustment block, a vertical adjustment block, a horizontal drive unit, and a vertical drive unit. The horizontal drive unit is used to drive the horizontal adjustment block to move. The vertical adjustment block is movably mounted on the horizontal adjustment block, and the vertical drive unit is used to drive the vertical adjustment block to move up and down relative to the horizontal adjustment block. The roller controller is mounted on the vertical adjustment block.

7. The tapered roller bearing assembly machine according to claim 1, characterized in that: The roller guide head has a control hole on one side, which communicates with the roller channel; the roller controller also includes an on / off control unit, which includes a plug rod and an on / off drive component. The plug rod is aligned with the control hole, and the on / off drive component is used to drive the plug rod to move axially along the control hole.

8. The tapered roller bearing assembly machine according to claim 1, characterized in that: The outlet end of the directional channel extends towards the center of the vibratory plate.

9. The tapered roller bearing assembly machine according to any one of claims 1-8, characterized in that: The recognition port extends from the reverse little-endian recognition position towards the inlet end of the recognition channel, and the width of the extended portion is not greater than the width of the reverse little-endian recognition position; the recognition port extends from the forward little-endian recognition position towards the outlet end of the recognition channel, and the width of the extended portion is not greater than the width of the forward little-endian recognition position.

10. A method for assembling tapered roller bearings with automatic roller orientation recognition, characterized in that: The tapered roller bearing assembly machine as described in any one of claims 1-9 is used; At least the following steps are included: S1 Loading: Place the rollers in the vibratory feeder and place the cage to be assembled on the centering mold at the same time; S2 Position Adjustment: The position adjustment component operates to adjust the position of the roller guide head relative to the centering mold and the cage; S3 sorting: The vibratory feeder works to send the rollers one by one from the discharge port into the direction channel of the direction mold; If the small end of the roller enters the identification port forward, when the center of mass of the roller passes the positive center of mass identification position, the small end of the roller has not yet reached the positive small end identification position. The roller falls directly into the identification port with the small end facing down, thus completing the sorting. If the large end of the roller enters the orientation port in front, when the center of mass of the roller passes the forward center of mass identification position, the large end of the roller has already passed the large end identification position, and the roller cannot enter the orientation port. The roller continues to move forward. When the small end of the roller passes the reverse small end identification position, the center of mass of the roller has not yet reached the reverse center of mass identification position. The roller falls into the orientation port with the small end facing down, completing the sorting. S4 Assembly: The sorted rollers are guided to the centering mold via the guide tube and roller guide head, and assembled with the cage to complete the assembly operation of a single roller.

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