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CN-121973035-A - Follow-up grinding device for universal joint cross shaft journal

CN121973035ACN 121973035 ACN121973035 ACN 121973035ACN-121973035-A

Abstract

The invention belongs to the technical field of machining of cross shafts, in particular to a follow-up grinding device for the axle journals of universal joints, which comprises a base, wherein the upper end of the base is fixedly connected with a mounting plate, the rear end of the base is provided with a mechanical arm which is used for clamping the upper and lower materials of the cross shafts, and a grinding adjusting assembly is arranged in an inner cavity of the mounting plate.

Inventors

  • CHEN YUWEN
  • CHEN GUO
  • CHEN CHENGNAN

Assignees

  • 武汉建鑫冶金机械有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (10)

  1. 1. The follow-up grinding device for the universal joint cross shaft journal is characterized by comprising a base (1), wherein an installation plate (2) is fixedly connected to the upper end of the base (1), a mechanical arm (3) is arranged at the rear end of the base (1), the mechanical arm (3) is used for clamping the cross shaft (8) for feeding and discharging, and a grinding adjusting assembly (5) is arranged in an inner cavity of the installation plate (2); The polishing adjusting assembly (5) comprises a rotating disc (51) which is rotatably connected in an inner cavity of the mounting plate (2), four arc-shaped grooves are formed in the upper end of the rotating disc (51), sliding columns (52) are slidably connected in each arc-shaped groove, an L-shaped frame (55) is mounted at the upper end of each sliding column (52), and a self-adaptive grinding assembly (9) is arranged at one end of each L-shaped frame (55); And self-adaptation grinding subassembly (9) are including installing annular mount (92) in L type frame (55) one end, annular mount (92) inner chamber rotation is connected with disc (94), two cross spouts (95) have been seted up to disc (94) one side, and two cross spout (95) inner chamber all sliding connection has cross piece (96), the inside rotation of cross piece (96) is connected with transmission shaft (911), transmission shaft (911) externally mounted has post (97) of polishing.
  2. 2. The follow-up grinding device for the universal joint cross shaft journal according to claim 1, wherein a liquid storage groove (10) is formed in the upper end of the base (1), a through hole (12) is formed in the bottom of an inner cavity of the liquid storage groove (10), a drain pipe (7) is fixedly communicated with the lower end of the base (1) at the through hole (12), a tension spring (99) is fixedly connected to the inner wall of the cross chute (95), and one end of the tension spring (99) is fixedly connected with a cross block (96).
  3. 3. The follow-up grinding device for the universal joint cross shaft journal according to claim 1, wherein a rotating column (53) is arranged at the lower end of the mounting plate (2), a servo motor (6) is arranged at the lower end of the base (1), the output shaft end of the servo motor (6) is connected with the rotating column (53) in an inserting mode, a collecting groove (4) is formed in the upper end of the mounting plate (2), a limiting frame (11) is arranged at the lower end of the mounting plate (2), four through grooves for limiting the sliding direction of the sliding column (52) are formed in the lower end of the limiting frame (11), and the sliding column (52) cannot rotate in an inner cavity of the through grooves and can slide stably.
  4. 4. The device for grinding the journal of the universal joint cross shaft according to claim 3, wherein a storage groove (59) is formed in the upper end of the rotating column (53), a first spring (58) is installed in an inner cavity of the storage groove (59), a T-shaped bracket (54) is rotatably connected to the upper end of the mounting plate (2), and one end of the T-shaped bracket (54) is abutted against the first spring (58).
  5. 5. The device for grinding the journal of the universal joint cross shaft according to claim 4, wherein two scraping rods (57) are fixedly connected to the outside of the rotating column (53), and the scraping rods (57) are arranged in an S shape and are used for scraping clean water or polishing liquid in the inner cavity of the liquid storage tank (10) for recycling.
  6. 6. The device for grinding the journal of the universal joint cross shaft according to claim 4, wherein a synchronous motor (56) is installed in an inner cavity at one end of the L-shaped frame (55), and an output shaft end of the synchronous motor (56) penetrates through the L-shaped frame (55) and is fixedly installed with the self-adaptive grinding assembly (9).
  7. 7. The device for grinding the journal of the universal joint cross shaft according to claim 6, wherein the upper end of the L-shaped frame (55) is fixedly connected with a mounting frame (91), one end of the mounting frame (91) is fixedly arranged with an annular fixing frame (92), one side of the disc (94) is provided with a triangular bracket (98), and one end of the triangular bracket (98) is fixedly arranged with the output shaft end of the synchronous motor (56).
  8. 8. The device for grinding the journal of the universal joint cross shaft according to claim 1, wherein a gear ring (93) is fixedly connected to one side of the annular fixing frame (92), a driven pulley (910) is fixedly connected to one end of the transmission shaft (911), a driving pulley (918) is rotatably connected to one side of the disc (94), a belt (917) is connected to the inside of the driving pulley (918) in a transmission manner, and the belt (917) is connected to the driven pulley (910) in a transmission manner.
  9. 9. The device for grinding the journal of the universal joint cross shaft according to claim 8, wherein a groove (914) is formed in one side of the disc (94), a fixing column (915) is fixedly connected to an inner cavity of the groove (914), a sliding block (913) is connected to the outer portion of the fixing column (915) in a sliding mode, a limiting belt pulley (912) is connected to one end of the sliding block (913) in a rotating mode, and the limiting belt pulley (912) is in transmission connection with a belt (917).
  10. 10. The device for grinding the journal of the universal joint cross shaft according to claim 9, wherein a second spring (916) is fixedly connected to one end of the inner cavity of the groove (914), one end of the second spring (916) is fixedly connected with the slider (913), one end of the driving pulley (918) is fixedly connected with a gear (919), and the gear (919) is in meshed connection with the gear ring (93).

Description

Follow-up grinding device for universal joint cross shaft journal Technical Field The invention belongs to the technical field of machining of cross shafts, and particularly relates to a follow-up grinding device for a universal joint cross shaft journal. Background The universal joint is formed by connecting two universal joint forks through a cross shaft, belongs to a typical non-constant velocity universal joint, realizes power transmission through a cross shaft structure, allows an included angle between two transmission shafts to change, is a joint part of a universal transmission device of an automobile driving system, and the cross shaft needs to be ground by using a grinding device before a production factory so as to assemble a needle bearing in the later stage. One patent with publication number of CN111421403B discloses a full-automatic cylindrical grinding machine for grinding four cross shafts, the device is matched with a feeding mechanism, a first feeding mechanical claw, a second feeding mechanical claw, a frame, a cross shaft conveying mechanism, a blanking carriage, a grinding device, a swing correcting mechanism and the like, the first feeding mechanical claw can sequentially convey the cross shaft at the output end of a conveying belt to a first supporting fork frame, the second feeding mechanical claw is used for conveying a plurality of cross shafts to be processed on the first supporting fork frame to the grinding device, or conveying the processed cross shafts to a second supporting fork frame, so that a plurality of cross shafts can be subjected to feeding grinding processing simultaneously, and the production efficiency can be improved. The cross shaft conveying mechanism is provided with two conveying stations, a first supporting fork frame is used for providing a cross shaft to be processed for a second feeding mechanical claw, the second supporting fork frame is used for receiving the cross shaft after grinding processing, the cross shaft after primary grinding can be subjected to reversing through a reversing mechanism in the first supporting fork frame, the cross shaft after reversing is subjected to secondary grinding, excircles of four shafts are ground after primary feeding, the cross shaft after grinding can be pushed upwards through a discharging mechanism in the second supporting fork frame, and the cross shaft falls into a discharging chute frame to be discharged automatically, so that automatic discharging is achieved. In practical application, the first mechanical claw is used for conveying the cross shaft to the first fork frame, the second mechanical claw is used for conveying the cross shaft to be processed on the first fork frame to the grinding device for processing, or conveying the processed cross shaft to the second fork frame, the first fork frame is used for providing the cross shaft to be processed for the second mechanical claw, the second fork frame receives the cross shaft after grinding, and the reversing mechanism in the first fork frame can be used for reversing the cross shaft after primary grinding and grinding the other two shaft necks again. To this end, the invention provides a follow-up grinding device for the journal of a universal joint cross. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The technical scheme includes that the follow-up grinding device for the universal joint cross shaft journal comprises a base, wherein a mounting plate is fixedly connected to the upper end of the base, a mechanical arm is arranged at the rear end of the base and used for clamping the cross shaft journal for feeding and discharging, and a grinding adjusting assembly is arranged in an inner cavity of the mounting plate; The polishing adjusting assembly comprises a rotating disc which is rotatably connected in an inner cavity of the mounting plate, four arc-shaped grooves are formed in the upper end of the rotating disc, a sliding column is slidably connected in each arc-shaped groove, an L-shaped frame is mounted at the upper end of the sliding column, and a self-adaptive grinding assembly is arranged at one end of the L-shaped frame; And self-adaptation grinding subassembly is including installing the annular mount in L type frame one end, annular mount inner chamber rotates and is connected with the disc, two cross spouts have been seted up to disc one side, and two equal sliding connection of cross spout inner chamber has the cross piece, the inside rotation of cross piece is connected with the transmission shaft, transmission shaft externally mounted has the post of polishing. Preferably, the liquid storage tank is arranged at the upper end of the base, the through hole is arranged at the bottom of the inner cavity of the liquid storage tank, the drain pipe is fixedly communicated with the lower end of the base at the through hole, the tension spring