Automatic assembly production line and process for deep groove ball bearing

Abstract

The invention relates to an automatic assembly production line and process for deep groove ball bearings, relates to the technical field of bearing assembly, and solves the technical problems of uneven grease distribution and disordered storage in the assembly process of an automatic assembly production line for bearings, the automatic assembly production line comprises a rack, and a feeding structure, a discharging structure and a grease stirring structure are arranged beside the rack in a matched mode; the top of the rack is provided with a clamping and transferring structure, a front face grease injection structure, a primary reversing structure, a reverse face grease injection structure, a reverse face cover placing structure, a reverse face cover pressing structure, a secondary reversing structure, a front face cover placing structure and a front face cover pressing structure, the top of the rack is fixedly connected with a platform, and two storage grooves are formed in the platform. According to the bearing assembling device, the whole production line does not need to be shut down, only the production line with faults needs to be maintained, and the bearing assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing assembly, in particular to a deep groove ball bearing automatic assembly production line and process. BACKGROUND

[0002] The deep groove ball bearing is the most widely used and most representative rolling bearing, and the bearing needs to be assembled in the production process. The existing bearing assembly production line is too long and occupies too much area, and is connected together. Once a fault occurs in the process, the whole production line needs to stop running, resulting in low assembly efficiency.

[0003] The production line process of the deep groove ball bearing is relatively complex. In the process after the assembly of the ball, the ball needs to be injected with grease. In this production line process, the lubricating grease is injected through the grease injection cylinder. However, the core area between the balls cannot be fully penetrated during the injection of the grease, resulting in uneven distribution of the grease. This easily causes the grease to accumulate near the injection point, making it difficult to cover the entire internal space of the bearing. In addition, if the injection of the grease continues, the grease not only cannot further penetrate the core area, but also may overflow from the top of the bearing, resulting in insufficient actual injection of the grease in the bearing and contamination of the top of the bearing.

[0004] After the assembly of the deep groove ball bearing is completed, the bearing directly falls into the storage box. Each time the deep groove ball bearing falls, it collides with each other and is arranged in a disorderly manner, resulting in scratches and other defects on the surface of the deep groove ball bearing. After the assembly is completed, the deep groove ball bearing needs to be arranged.

[0005] On this basis, the present application provides a deep groove ball bearing automatic assembly production line and process to solve the above problems. SUMMARY

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a deep groove ball bearing automatic assembly production line and process. The present application has novel structure and ingenious design, and effectively solves the technical problems of uneven distribution of grease and disordered storage of the existing bearing automatic assembly production line during assembly.

[0007] A deep groove ball bearing automatic assembly production line, comprising a rack, a feeding structure, a discharging structure and a grease stirring structure are matched on the side of the rack, a clamping and transferring structure, a front grease injection structure, a first reverse structure, a back grease injection structure, a back cover placing structure, a back cover pressing structure, a second reverse structure, a front cover placing structure and a front cover pressing structure are arranged on the top of the rack, a platform is fixedly connected to the top of the rack, two storage grooves are formed in the platform, a shell is rotatably connected in each of the two storage grooves, a plurality of auxiliary double sleeve pipe guides are fixedly connected to the inner wall of each shell, a clamping spring is arranged in each auxiliary double sleeve pipe guide, and a clamping plate is fixedly connected to the other end of each auxiliary double sleeve pipe guide.

[0008] Preferably, each of the clamping plates has a guide rod fixedly connected to its bottom, each of the two housings has a support rod that can be raised and lowered, each of the two support rods has a rotating seat fixedly connected to its top, and each of the two rotating seats has a stop rod fixedly connected to its bottom.

[0009] Preferably, the material discharge structure includes a placement frame, a support rod fixedly connected to the top of the placement frame, a support plate rotatably connected to the support rod, a rotatable guide plate provided on the support plate, a storage box placed on the placement frame, a feeding electric push rod fixedly connected to the placement frame, a push frame fixedly connected to the output end of the feeding electric push rod, and a push plate inserted into one side of the push frame.

[0010] Preferably, the bottom ends of both support rods are fixedly connected to a lifting frame.

[0011] Preferably, the front grease injection structure includes a grease injection machine with a lifting mechanism, the grease injection machine is fixedly connected to a limit joint, and a grease injection cylinder is fixedly connected to the bottom of the limit joint.

[0012] Preferably, a protective shell is fixedly connected to the surface of the grease injection cylinder, a main double-tube guide is fixedly connected to the top of the inner wall of the protective shell, an annular tube is fixedly connected to the bottom end of the main double-tube guide, and a limit spring is provided inside the main double-tube guide.

[0013] Preferably, a plurality of storage frames are fixedly connected to the inner side of the annular tube, and a telescopic tube is provided on one side of the inner wall of each of the plurality of storage frames. A suction head is fixedly connected to the other end of each of the plurality of telescopic tubes, and a compression spring is connected to the other end of the telescopic tube.

[0014] A process for an automated assembly line for deep groove ball bearings includes the following steps:

[0015] Step 1: The bearing is moved at a fixed distance using the clamping and conveying structure. Grease is injected into the front of the bearing in sequence, the bearing is reversed, grease is injected into the back of the bearing, an end cap is placed on the back of the bearing, the end cap placed on the back of the bearing is pressed down, the bearing is reversed again, an end cap is placed on the front of the bearing, the end cap placed on the front of the bearing is pressed down, and the bearing assembly operation is completed.

[0016] Step 2: After assembly, the bearings slide from the platform to the support plate, are guided by the guide plate into the storage box and arranged in rows. After each row is full, the feeding electric push rod drives the push plate to push the row of bearings to the other side of the storage box.

[0017] The present invention has the following technical effects.

[0018] 1. This invention separates multiple production lines for bearing assembly. The assembly of the outer and inner rings is set up as a separate production line, the assembly of the balls is set up as a separate production line, and the assembly of grease injection and capping is set up as a separate production line. Each feeding structure is connected to the previous production line. In this way, when a fault occurs, it is not necessary to shut down the entire production line. Only the production line with the fault needs to be repaired, thereby improving the efficiency of bearing assembly.

[0019] 2. This invention clamps the bearing using a clamping plate, guide rod, rotating seat, and stop rod, assisting in the grease injection operation. At the same time, it drives the outer ring of the clamped bearing to rotate at a uniform speed, causing the injected grease to penetrate evenly into the raceway and ball gap under the action of centrifugal force and gravity, significantly improving the uniformity and consistency of grease filling inside the bearing.

[0020] 3. This invention guides the falling bearings through a guide plate, allowing them to slide smoothly into the storage box and be arranged in a row, avoiding severe collisions and scratches between the bearings, and eliminating the need for operators to reorder them. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the frame, feeding structure, discharging structure and grease mixing structure in this invention;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the frame, platform, first reversal structure, and second reversal structure in this invention;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the platform, clamping and transferring structure and the storage slot in this invention;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the storage groove, adjustment groove, installation groove and penetration groove in this invention;

[0027] Figure 6 This is a schematic diagram of the assembly structure of the shell, auxiliary double-sleeve guide and clamping plate in this invention;

[0028] Figure 7 This is a schematic diagram of the assembly structure of the main support shaft, auxiliary support shaft and main belt in this invention;

[0029] Figure 8 This is a schematic diagram of the assembly structure of the bracket, lowering plate, and grease injection cylinder in this invention;

[0030] Figure 9 This is a schematic diagram of the assembly structure of the grease injection machine, the limiting joint, and the grease injection cylinder in this invention;

[0031] Figure 10 This is a schematic diagram of the assembly structure of the protective shell, limiting spring and annular tube in this invention;

[0032] Figure 11 This is a schematic diagram of the assembly structure of the annular pipe, the conveying pipe, and the main double-sleeve guide in this invention;

[0033] Figure 12 This is a schematic diagram of the assembly structure of the placement frame, support plate, guide plate and pusher plate in this invention.

[0034] Figure 13 This is the present invention. Figure 7 Enlarged diagram of point A in the middle.

[0035] Figure 14 This is the present invention. Figure 11 Enlarged diagram of point B in the middle.

[0036] Reference numerals: 1. Frame; 2. Platform; 3. Clamping and transferring structure;

[0037] 4. Front grease injection structure; 401. Support; 402. Electric grease injection push rod; 403. Lowering plate; 404. Grease injection machine; 405. Limiting connector; 406. Grease injection cylinder; 407. Suction pump; 408. Storage box; 409. Suction pipe; 410. Conveying pipe; 411. Discharge port; 412. Push plate; 413. Push rod; 414. Protective shell; 415. Main double-sleeve guide; 416. Limiting spring; 417. Ring pipe; 418. Storage frame; 419. Telescopic pipe; 420. Suction head; 421. Compression spring; 422. Inlet;

[0038] 5. First reverse rotation structure; 6. Reverse grease injection structure; 7. Reverse capping structure; 8. Reverse capping structure; 9. Second reverse rotation structure; 10. Front capping structure; 11. Front capping structure; 12. Feeding structure;

[0039] 13. Material discharge structure; 1301. Placement rack; 1302. Support rod; 1303. Support plate; 1304. Guide plate; 1305. Storage box; 1306. Electric feeding push rod; 1307. Pushing frame; 1308. Pushing plate;

[0040] 14. Grease mixing structure; 15. Storage tank; 16. Adjustment tank; 17. Installation tank; 18. Through-hole tank; 19. Housing; 20. Auxiliary double-sleeve guide; 21. Clamping spring; 22. Clamping plate; 23. Guide rod; 24. Support rod; 25. Rotating seat; 26. Lifting frame; 27. Stop bar; 28. Auxiliary support shaft; 29. ​​Auxiliary belt; 30. Motor; 31. Main support shaft; 32. Main belt; 33. Tensioner wheel. Detailed Implementation

[0041] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 14 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0042] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0043] As one embodiment, the present invention is an automatic assembly production line for deep groove ball bearings, including a frame 1. A feeding structure 12, a discharging structure 13, and a grease mixing structure 14 are arranged around the frame 1. The top of the frame 1 is equipped with a clamping and transferring structure 3, a front grease injection structure 4, a first reversal structure 5, a back grease injection structure 6, a back cover placement structure 7, a back cover pressing structure 8, a second reversal structure 9, a front cover placement structure 10, and a front cover pressing structure 11. The present invention sets the feeding structure 12, discharging structure 13, grease mixing structure 14, clamping and transferring structure 3, front grease injection structure 4, first reversal structure 5, back grease injection structure 6, back cover placement structure 7, back cover pressing structure 8, second reversal structure 9, front cover placement structure 10, and front cover pressing structure 11 as separate assembly lines. The feeding structure 12 is connected to the previous process. This allows for the elimination of the need to shut down the entire production line in case of a malfunction; only the malfunctioning section needs to be repaired, thus improving the efficiency of bearing assembly.

[0044] A platform 2 is fixedly connected to the top of the frame 1. Two storage slots 15 are opened on the platform 2. A housing 19 is rotatably connected to each of the two storage slots 15. The housing 19 is cylindrical and fits against the inner wall of the storage slot 15. The height of the top of the housing 19 is the same as the height of the platform 2. Multiple auxiliary double-sleeve guides 20 are fixedly connected to the inner wall of each of the two housings 19. Each auxiliary double-sleeve guide 20 consists of two sleeves, one of which is slidably connected to the other sleeve. Each of the multiple auxiliary double-sleeve guides 20 is provided with a clamping spring 21. The other end of each of the multiple auxiliary double-sleeve guides 20 is fixedly connected with a clamping plate 22. A contact sensor is provided on one of the multiple clamping plates 22 located inside the housing 19.

[0045] The two storage slots 15 are located below the front grease injection structure 4 and the back grease injection structure 6, respectively. The back cover structure 7 is the same as the front cover structure 10. The first reversal structure 5 is the same as the second reversal structure 9. The back cover structure 8 is the same as the front cover structure 11. The front grease injection structure 4 is the same as the back grease injection structure 6.

[0046] In this embodiment, during use, the bearing is conveyed to the platform 2 by the feeding structure 12. The bearing is positioned by the clamping and transferring mechanism and moved to the front grease injection structure 4. After the front grease injection is completed, it is moved to the first reversal structure 5 for flipping. Subsequently, the bearing is sent to the back grease injection structure 6 for back grease injection. After completion, it is moved to the back cover placement structure 7, where the end cap is placed on top of the bearing. Then it is moved to the back cover pressing structure 8, where the end cap is pressed into the bearing. After the cover is pressed, the bearing is moved to the second reversal structure 9 for flipping again. Then it is moved to the front cover placement structure 10 to place the second end cap, and then moved to the front cover pressing structure 11 to complete the cover pressing. Finally, the bearing is sent to the discharge structure 13 for collection.

[0047] It should be noted that the contact sensor is connected to a power supply and a controller, which are existing technologies and therefore not described in detail.

[0048] As an example, guide rods 23 are fixedly connected to the bottom of multiple clamping plates 22. The guide rods 23 gradually slope outward from top to bottom. Two mounting slots 17 are opened on the platform 2. One side of the two mounting slots 17 penetrates the platform 2. The two mounting slots 17 are located below the two storage slots 15. Tensioning wheels 33 are fixedly connected to the bottom of the two housings 19. The two tensioning wheels 33 are rotatably connected to the two mounting slots 17. Support rods 24 that can be raised and lowered are provided in the two housings 19. Rotating seats 25 are fixedly connected to the top of the two support rods 24. When the rotating seats 25 are at the same height as the platform 2, there is an annular space between the outer side of the rotating seats 25 and the multiple clamping plates 22. Stop rods 27 are fixedly connected to the bottom of the two rotating seats 25. The stop rods 27 are annular and the diameter of the stop rods 27 is larger than the diameter of the rotating seats 25.

[0049] In this embodiment, the platform 2 transfers the bearing to the top of the rotating seat 25. In the assembly production line, the front grease injection structure 4 contacts the top of the bearing and presses the bearing into the housing 19 at the same time. As the bearing descends, it drives the rotating seat 25 and the support rod 24 to move downward. At this time, the annular stop rod 27 at the bottom of the rotating seat 25 also moves downward, releasing the limit on the guide rod 23. Subsequently, the clamping spring 21 in the auxiliary double-tube guide 20 pushes the plurality of clamping plates 22 towards the center of the housing 19, and the guide rods 23 at the bottoms of the clamping plates 22 also move towards the center, thus completing the clamping and fixing of the bearing. The contact sensor contacts the bearing and emits a signal. After clamping, the tension pulley 33 drives the housing 19 to rotate in the storage groove 15,带动 the clamped outer ring of the bearing to rotate synchronously,促使 the injected grease to be evenly filled inside the bearing.

[0050] As an embodiment, the discharging structure 13 includes a placement rack 1301. The placement rack 1301 is located on one side of the frame 1. A support rod 1302 is fixedly connected to the top of the placement rack 1301. The support rod 1302 is in the shape of a "冂". A support plate 1303 is rotatably connected to the support rod 1302. The height of the support plate 1303 gradually decreases in the direction away from the frame 1. A guiding plate 1304 that can rotate is provided on the support plate 1303. Specifically, a servo motor driven by a controller is coaxially connected to the rotating shaft of the guiding plate 1304. A storage box 1305 is placed on the placement rack 1301. A feeding electric push rod 1306 is fixedly connected to the placement rack 1301. The output end of the feeding electric push rod 1306 is fixedly connected to a pushing frame 1307. A pushing plate 1308 is inserted into one side of the pushing frame 1307. The pushing plate 1308 is located inside the storage box 1305 and is matched with the inner wall of the storage box 1305.

[0051] In this embodiment, the assembled bearing slides down from one side of the platform 2 onto the support plate 1303. The guiding plate 1304 guides the falling bearing by setting the rotation angle,使其 slide smoothly along the support plate 1303 into the storage box 1305 and be arranged in rows. When a row of bearings is arranged, the feeding electric push rod 1306 can be manually or set to contract automatically,带动 the pushing plate 1308 to move inside the storage box 1305, and push the row of bearings to the other side inside the storage box 1305. After the pushing is completed, the feeding electric push rod 1306 extends to reset the pushing plate 1308 for the next pushing operation. Repeat this process until the storage box 1305 is full. After completion, the staff can拆卸 the pushing plate 1308 from the pushing frame 1307 and移出 the full storage box 1305 from the placement rack 1301 and replace it with an empty storage box 1305 to continue承接 the bearings, effectively reducing the collision damage of the bearings during the collection process and eliminating the need for workers to reorder.

[0052] As an example, the top of the frame 1 is provided with two auxiliary support shafts 28 and a motor 30. The two auxiliary support shafts 28 and the motor 30 are located on one side of the platform 2. The two auxiliary support shafts 28 are respectively matched with two mounting slots 17. The output end of the motor 30 is fixedly connected to the main support shaft 31. The main support shaft 31 and the two auxiliary support shafts 28 are connected by a main belt 32. The two tensioning pulleys 33 are connected to the two auxiliary support shafts 28 by an auxiliary belt 29.

[0053] The bottom of each of the two storage slots 15 is provided with an adjustment slot 16. The adjustment slot 16 provides movement space for the horizontal structure on the lifting frame 26 to move up and down. The bottom ends of the two support rods 24 are respectively located in the two adjustment slots 16. The bottom ends of the two support rods 24 are fixedly connected to the lifting frame 26. The top of the lifting frame 26 cooperates with the front grease injection structure 4. Two injection slots 18 are provided on the platform 2. The injection slots 18 are rectangular and provide movement space for the vertical structure on the lifting frame 26. The two lifting frames 26 are slidably connected in the two injection slots 18 respectively.

[0054] In this embodiment, after the motor 30 starts, it drives the main support shaft 31 to rotate. The power is transmitted to the auxiliary support shafts 28 on both sides through two sets of main belts 32. The auxiliary belts 29 then drive the two tensioning pulleys 33 to rotate synchronously in the mounting groove 17, thereby causing the housing 19 to rotate in the receiving groove 15. The housing 19 drives the clamped outer ring of the bearing to rotate, which cooperates with the front grease injection structure 4 to make the grease evenly distributed inside the bearing, effectively reducing grease overflow during the grease injection process. During the grease injection process, the front grease injection structure 4 descends and continues to press down after contacting the top of the bearing, driving the lifting frame 26 and support. Rod 24 descends along the adjusting groove 16, causing the rotating seat 25 and the bearing above it to descend accordingly. This not only assists in clamping and positioning the bearing but also prepares for subsequent grease injection. After grease injection, the front grease injection structure 4 moves upward, first separating from the bearing, and then continues to rise a certain distance, driving the lifting frame 26 to rise along the injection groove 18. Subsequently, the bearing is lifted upward through the support rod 24 and the rotating seat 25 until the top of the rotating seat 25 is flush with the surface of the platform 2. At this point, the front grease injection structure 4 stops moving, and the bearing is at the same height as other bearings on the platform 2, which facilitates subsequent process operations.

[0055] It should be noted that the motor 30 is connected to a power supply and a controller, which are existing technologies and therefore have not been described in detail.

[0056] As an example, the front grease injection structure 4 includes a bracket 401. A grease injection electric push rod 402 is fixedly connected to the top of the bracket 401. A descending plate 403 is fixedly connected to the output end of the grease injection electric push rod 402. The descending plate 403 is slidably connected to the bracket 401. A grease injection machine 404 is fixedly connected to the top of the descending plate 403. The grease injection machine 404 is connected to the grease stirring structure 14. The grease injection machine 404 extracts grease from the grease stirring structure 14. A limit joint 405 is fixedly connected to the output end of the grease injection machine 404. The limit joint 405 is located below the descending plate 403. A grease injection cylinder 406 is fixedly connected to the output end of the bottom of the limit joint 405. The grease injection cylinder 406 is located above the platform 2 and cooperates with the lower transfer bearing. An L-shaped sleeve plate is fixed to the bottom of the descending plate 403. A sleeve hole is opened on the sleeve plate, and the sleeve hole fits onto the lifting frame 26 to form a fit.

[0057] As an example, a protective shell 414 is fixedly connected to the surface of the grease injection cylinder 406. Two main double-sleeve guides 415 are fixedly connected to the top of the inner wall of the protective shell 414. The main double-sleeve guides 415 have the same structure as the auxiliary double-sleeve guides 20, which also consist of two sleeves, one of which is slidably connected to the other sleeve. An annular tube 417 is fixedly connected to the bottom of the two main double-sleeve guides 415. A limit spring 416 is provided inside each of the two main double-sleeve guides 415.

[0058] In this embodiment, during assembly, the output end of the grease injection electric push rod 402 extends, causing the descending plate 403 to slide downwards along the bracket 401, so that the grease injection cylinder 406 descends until it contacts the bearing. At this time, the grease injection port at the bottom of the grease injection cylinder 406 is inserted into the gap between the balls inside the bearing. Then, the grease injection electric push rod 402 stops moving, and the grease injection machine 404 draws grease from the grease stirring structure 14 and injects it into the grease injection cylinder 406 through the limit connector 405. Finally, it fills the inside of the bearing through the grease injection port. During the descent of the grease injection cylinder 406, when the bottom of the grease injection cylinder 406 is flush with the top of the bearing, the annular tube 417 inside the protective shell 414 contacts the top of the outer ring of the bearing. The outer diameter of the ring tube 417 is smaller than that of the bearing. As the grease injection cylinder 406 continues to descend, the grease injection port enters the bearing. The annular tube 417 is blocked by the bearing. The main double-sleeve guide 415 compresses the limiting spring 416, causing it to undergo elastic deformation. After the grease injection is completed, the grease injection cylinder 406 begins to rise. During the process of the bottom grease injection port exiting the bearing, the annular tube 417 remains in contact with the top of the bearing under the continuous pressure of the limiting spring 416 until the grease injection cylinder 406 rises to the reset position of the annular tube 417. After that, the annular tube 417 continues to move upward with the grease injection cylinder 406, effectively reducing the phenomenon of the bearing rising with the grease injection cylinder 406, which facilitates subsequent steps.

[0059] It should be noted that the grease injection machine 404 and the grease injection electric push rod 402 are connected to a controller and a power supply. The controller and power supply are existing technologies, so they are not described in detail.

[0060] As one embodiment, a plurality of storage frames 418 are fixedly connected to the inner side of the annular tube 417. The storage frames 418 are cylindrical, and a hole communicating with the annular tube 417 is opened on one side of the annular tube 417. A telescopic tube 419 is fixedly connected to one side of the inner wall of each of the plurality of storage frames 418. One end of the telescopic tube 419 is fixedly connected to the hole on one side of the storage frame 418. The plurality of telescopic tubes 419 are all connected to the annular tube 417. A suction head 420 is fixedly connected to the other end of each of the plurality of telescopic tubes 419. A compression spring 421 is provided in each of the plurality of storage frames 418. The plurality of compression springs 421 are respectively sleeved on the plurality of telescopic tubes 419. The plurality of suction heads 420 are slidably connected in each of the plurality of storage frames 418. A feed port 422 is opened on each of the plurality of suction heads 420. The plurality of suction heads 420 are engaged with the grease injection port on the grease injection cylinder 406 through the feed port 422.

[0061] In this embodiment, during the descent of the grease injection cylinder 406, the annular tube 417 stops moving downward due to obstruction. The outer wall of the grease injection cylinder 406 contacts the suction head 420, pushing the suction head 420 to slide into the storage frame 418. This compresses the compression spring 421 located in the storage frame 418, causing it to undergo elastic deformation. Simultaneously, the telescopic tube 419 between the suction head 420 and the storage frame 418 folds and retracts. After grease injection is completed, the grease injection cylinder 406 begins to rise, and the annular tube 417 returns to its original position. At this time, the suction head 420 gradually detaches from the surface of the grease injection cylinder 406, and the pressure is released. The compression spring 421 pushes the suction head 420 out of the storage frame 418, and the folded telescopic tube 419 unfolds synchronously. When the annular tube 417 is fully reset, the suction head 420 has moved to the grease injection port position at the bottom of the grease injection cylinder 406, and its feed port 422 is aligned with the grease injection port. This provides a reliable preparation for subsequent extraction of residual grease from the grease injection port without interfering with normal grease injection.

[0062] As an example, a suction pump 407 is fixedly connected to the top of the descending plate 403. The output end of the suction pump 407 is fixedly connected to a storage box 408 through a suction pipe 409. The input end of the suction pipe 409 is connected to the top of the inner wall of the storage box 408, and a blocking structure is provided at the input end to block the grease. Four conveying pipes 410 are fixedly connected to the side wall of the storage box 408. The top feed positions of the four conveying pipes 410 are evenly distributed on the side wall of the storage box 408. The other ends of the four conveying pipes 410 all pass through the protective shell 414 and are connected to the annular pipe 417.

[0063] As an example, the storage box 408 is fixedly connected to the bottom of the descending plate 403. A discharge port 411 is provided on one side of the storage box 408. The discharge port 411 is rectangular and is provided with a sealing cover to seal the discharge port 411. A push plate 412 is slidably connected inside the storage box 408. The push plate 412 is rectangular and its shape is the same as the cross-sectional shape of the storage box 408. A sealing gasket is provided on the edge of the push plate 412 that contacts the storage box 408, so that the space formed by the push plate 412 and the storage box 408 is sealed. A push rod 413 is fixedly connected to one side of the push plate 412. The push rod 413 is slidably connected to the side of the storage box 408 away from the discharge port 411. The push rod 413 is engaged with one side of the storage box 408. When it is necessary to clean the grease inside the storage box 408, the push rod 413 can be unlocked.

[0064] In this embodiment, after the suction pump 407 is started, it draws air from the inside of the storage box 408 through the suction pipe 409 to create a negative pressure state. This negative pressure acts sequentially on the four conveying pipes 410, the annular pipe 417, and the telescopic pipes 419 in each storage frame 418, thereby sucking up the residual grease (not inside the assembly) at the grease injection port of the grease injection cylinder 406, preventing grease from dripping and causing contamination. The sucked grease enters the annular pipe 417 through the telescopic pipe 419, and is then transported to the storage box 408 for storage through the four conveying pipes 410. After a period of collection, the operator can open the sealing cover of the discharge port 411 on the storage box 408 and release the lock on the push rod 413, pushing the push plate 412 to move inside the storage box 408 to discharge the accumulated grease toward the discharge port 411. After cleaning, the push rod 413 is pulled back to reset the push plate 412, thus restoring the function of the storage box 408 to continuously collect grease.

[0065] The present invention enables the suction head 420 to have a certain range of floating capability through the storage frame 418, the telescopic tube 419 and the compression spring 421. During the operation, it can automatically compensate for the positional deviation of the grease injection cylinder 406, ensuring that the feed port 422 on the suction head 420 is always accurately aligned with the grease injection port on the grease injection cylinder 406, thereby improving the recovery effect of residual grease.

[0066] It should be noted that the suction pump 407 is connected to a controller and a power supply. The controller and power supply are existing technologies and therefore have not been described in detail.

[0067] A process for an automated assembly line for deep groove ball bearings includes the following steps:

[0068] Step 1: The bearing is transferred at a fixed distance using the clamping and conveying structure 3. Grease is injected into the front of the bearing, the bearing is reversed, grease is injected into the back of the bearing, an end cap is placed on the back of the bearing, the end cap placed on the back of the bearing is compacted, the bearing is reversed again, an end cap is placed on the front of the bearing, the end cap placed on the front of the bearing is compacted, and the bearing grease injection operation is completed.

[0069] Step 2: After assembly, the bearings slide from platform 2 to support plate 1303, are guided by guide plate 1304 into storage box 1305 and arranged in rows. After each row is full, feeding electric push rod 1306 drives push plate 1308 to push the row of bearings to the other side of storage box 1305.

[0070] As an example, during the assembly process in step one above, the grease injection port at the bottom of the grease injection cylinder 406 is inserted between the balls inside the bearing and the bearing is pressed into the housing 19. The bearing surface is clamped by the clamping plate 22 provided inside the housing 19, and the clamped bearing is rotated so that the grease injected into the bearing by the grease injection cylinder 406 is evenly distributed inside the bearing.

[0071] Step 3: When the grease injection port at the bottom of the grease injection cylinder 406 is inserted into the bearing, the annular tube 417 blocks the upward movement. After the grease injection is completed, when the grease injection cylinder 406 moves upward, the annular tube 417 descends to reset, preventing the bearing from moving with the grease injection cylinder 406. The suction head 420 on the annular tube 417 resets to one side of the grease injection port at the bottom of the grease injection cylinder 406 to extract the grease remaining at the grease injection port.

[0072] Working principle of this invention:

[0073] In use, the feeding structure 12 sequentially feeds the bearings onto the platform 2. The clamping and transferring structure 3 transfers the bearings to the corresponding workstations of the front grease injection structure 4, the first reversal structure 5, the reverse grease injection structure 6, the reverse capping structure 7, the reverse capping structure 8, the second reversal structure 9, the front capping structure 10, and the front capping structure 11 according to the process sequence. After the grease injection and capping are completed, the clamping and transferring structure 3 sends the bearings to the discharge structure 13 for collection, thereby completing the automatic assembly line for the bearings.

[0074] When the grease is injected at the front grease injection structure 4 and the back grease injection structure 6, the grease injection cylinder 406 descends and pressurizes the bearing into the housing 19. The clamping plate 22 inside the housing 19 clamps and fixes the bearing. During the grease injection process, the outer ring of the clamped bearing is driven to rotate, which makes the injected grease evenly fill the internal space of the bearing. This not only improves the penetration effect of grease between the raceway and the balls, but also reduces the situation of grease overflowing at the top of the bearing.

[0075] When the grease injection cylinder 406 descends for grease injection, the annular tube 417 remains stationary due to the obstruction at the top of the bearing. After grease injection is completed, the grease injection cylinder 406 rises, and the annular tube 417 continuously applies pressure to the bearing during the reset process to prevent the bearing from moving upward with the grease injection cylinder 406. After the annular tube 417 resets, the suction head 420 approaches the grease injection port of the grease injection cylinder 406 under the action of the compression spring 421, and the telescopic tube 419 unfolds simultaneously to achieve efficient extraction of residual grease from the grease injection port.

[0076] After the bearings have been greased and capped, they slide from platform 2 onto support plate 1303, are guided by guide plate 1304 into storage box 1305 and arranged in rows. After each row is full, feeding electric push rod 1306 drives push plate 1308 to push the row of bearings to the other side of the box. Then push plate 1308 is reset so that the next row can be pushed in until storage box 1305 is full.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated assembly line for deep groove ball bearings, comprising a frame (1), characterized in that, The frame (1) is equipped with a feeding structure (12), a discharge structure (13) and a grease mixing structure (14) on its side. The top of the frame (1) is equipped with a clamping and conveying structure (3), a front grease injection structure (4), a first reversal structure (5), a reverse grease injection structure (6), a reverse cover structure (7), a reverse cover pressing structure (8), a second reversal structure (9), a front cover placement structure (10) and a front cover pressing structure (11). The top of the frame (1) is fixedly connected to a platform (2). Two storage slots (15) are opened on the platform (2). A housing (19) is rotatably connected in both storage slots (15). Multiple auxiliary double-tube guides (20) are fixedly connected to the inner walls of both housings (19). Each of the multiple auxiliary double-tube guides (20) is equipped with a clamping spring (21). The other end of each of the multiple auxiliary double-tube guides (20) is fixedly connected to a clamping plate (22).

2. The automated assembly production line for deep groove ball bearings according to claim 1, characterized in that, Guide rods (23) are fixedly connected to the bottom of each of the clamping plates (22), and support rods (24) that can be raised and lowered are provided in each of the two housings (19). Rotating seats (25) are fixedly connected to the top of each of the two support rods (24), and stop rods (27) are fixedly connected to the bottom of each of the two rotating seats (25).

3. The automated assembly production line for deep groove ball bearings according to claim 1, characterized in that, The material discharge structure (13) includes a placement rack (1301), a support rod (1302) is fixedly connected to the top of the placement rack (1301), a support plate (1303) is rotatably connected to the support rod (1302), a rotatable guide plate (1304) is provided on the support plate (1303), a storage box (1305) is placed on the placement rack (1301), a feeding electric push rod (1306) is fixedly connected to the placement rack (1301), a push frame (1307) is fixedly connected to the output end of the feeding electric push rod (1306), and a push plate (1308) is inserted into one side of the push frame (1307).

4. The automatic assembly production line for deep groove ball bearings according to claim 2, characterized in that, The bottom ends of both support rods (24) are fixedly connected to lifting frames (26).

5. The automated assembly production line for deep groove ball bearings according to claim 1, characterized in that, The front grease injection structure (4) includes a grease injection machine (404) that is lifted and lowered. The grease injection machine (404) is fixedly connected to a limit joint (405). A grease injection cylinder (406) is fixedly connected to the bottom of the limit joint (405).

6. The automatic assembly production line for deep groove ball bearings according to claim 5, characterized in that, A protective shell (414) is fixedly connected to the surface of the grease injection cylinder (406). A main double-tube guide (415) is fixedly connected to the top of the inner wall of the protective shell (414). An annular tube (417) is fixedly connected to the bottom end of the main double-tube guide (415). A limit spring (416) is provided inside the main double-tube guide (415).

7. The automatic assembly production line for deep groove ball bearings according to claim 6, characterized in that, The inner side of the annular tube (417) is fixedly connected to a plurality of storage frames (418), and each of the storage frames (418) has a telescopic tube (419) on one side of its inner wall. The other end of each telescopic tube (419) is fixedly connected to a suction head (420), and the other end of the telescopic tube (419) is connected to a compression spring (421).

8. A process for an automated assembly line for deep groove ball bearings, applied to an automated assembly line for deep groove ball bearings as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: The bearing is transferred at a fixed distance by the clamping and conveying structure (3). Grease is injected into the front of the bearing in sequence, the bearing is reversed, grease is injected into the back of the bearing, an end cap is placed on the back of the bearing, the end cap placed on the back of the bearing is compacted, the bearing is reversed again, an end cap is placed on the front of the bearing, the end cap placed on the front of the bearing is compacted, and the bearing assembly operation is completed. Step 2: After assembly, the bearings slide from the platform (2) to the support plate (1303), and are guided by the guide plate (1304) into the storage box (1305) and arranged in rows. After each row is full, the feeding electric push rod (1306) drives the push plate (1308) to push the row of bearings to the other side of the storage box (1305).

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