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CN-122007849-A - Compression device for cast iron flywheel assembly of automobile

CN122007849ACN 122007849 ACN122007849 ACN 122007849ACN-122007849-A

Abstract

The invention relates to the technical field of flywheel processing, in particular to an automobile cast iron flywheel assembly pressing device which comprises a machine table and a rotary clamping seat fixedly connected with the machine table, a supporting frame fixedly connected to the top wall of the machine table, a hydraulic push rod fixedly connected with the supporting frame, a cross plate fixedly connected with the movable end of the hydraulic push rod, a plurality of pressing mechanisms, a detecting assembly and an anti-rust assembly, wherein the detecting assembly is used for detecting the flatness of a pressed gear ring, and the pressing mechanisms further comprise the anti-rust assembly so as to prevent the joint seam of the flywheel and the gear ring from being corroded. The invention effectively ensures coaxiality of the gear ring and the flywheel before lamination by arranging the plurality of lamination mechanisms, simultaneously, after lamination is completed, the clamping plate is automatically reset by the relative sliding of the first wedge-shaped block and the second wedge-shaped block, so that the interference to subsequent procedures is avoided, the structure is compact, the action is reliable, and the lamination precision and the automation degree are improved.

Inventors

  • WANG XIANGWEN
  • SUN SHENGCHUN
  • REN WEIJIA
  • FENG WANCHANG

Assignees

  • 吉林大华机械制造有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (9)

  1. 1. An automotive cast iron flywheel assembly compression fitting device, comprising: a machine table (1) and a rotary clamping seat (2) fixedly connected with the machine table; the support frame (3) is fixedly connected to the top wall of the machine table (1); the hydraulic push rod (4) is fixedly connected with the support frame (3); The cross plate (5) is fixedly connected with the movable end of the hydraulic push rod (4); A plurality of pressing mechanisms; the pressing mechanism comprises: the Z-shaped plate (6) is fixedly connected to the bottom wall of the cross plate (5); The driving block (7) is in sliding connection with the inner side wall of the Z-shaped plate (6); The circular shaft (8) is fixedly connected with the side wall of the driving block (7); The sliding box (10) is in sliding connection with the inner side wall of the Z-shaped plate (6), a groove (11) is formed in the top wall of the sliding box (10), and the inner wall of the groove (11) is elastically connected with a first wedge block (13) through a first spring (12); the second wedge-shaped block (9) is fixedly connected to the bottom wall of the cross plate (5); the connecting column (15) is fixedly connected to the bottom wall of the sliding box (10), and a clamping plate (17) is arranged on the side wall of the connecting column (15) through a spring expansion device (16); the pressing mechanism further comprises a detection assembly for detecting the flatness of the pressed gear ring; The pressing mechanism further comprises an anti-rust assembly so as to avoid crevice corrosion at the joint of the flywheel and the gear ring.
  2. 2. The pressing device for the automobile cast iron flywheel assembly according to claim 1, wherein the bottom wall of the cross plate (5) is fixedly connected with a miniature electric push rod (71) through a mounting frame, the movable end of the miniature electric push rod (71) is fixedly connected with the driving block (7), and the first wedge block (13) moves for a certain distance and then slides against the adjacent second wedge block (9).
  3. 3. The pressing device for the automobile cast iron flywheel assembly according to claim 1, wherein the circular shaft (8) is in contact with the side wall of the first wedge block (13), and the first wedge block (13) is in sliding connection with the side wall of the groove (11).
  4. 4. The compression device of claim 1, wherein the detection assembly comprises: The device comprises a plurality of rectangular grooves (39) formed in the bottom wall of a cross plate (5), wherein the inner wall of each rectangular groove (39) is elastically connected with a vertical plate (44) through a second spring (40), wedge-shaped holes (38) are formed in the side walls of the vertical plates (44), Z-shaped wedge-shaped plates (37) are fixedly connected to the side walls of the driving blocks (7), and the Z-shaped wedge-shaped plates (37) slide against the wedge-shaped holes (38) after moving for a certain distance; a flatness detector (36) which is installed in a manner of being embedded in the vertical plate (44); And the scraping plate (45) is fixedly connected with the bottom wall of the vertical plate (44).
  5. 5. The compression device of claim 4, wherein the rust-preventive component comprises: The sliding box comprises a sliding box body (10), wherein a through hole (22) is formed in the inner wall of the bottom of the sliding box body (10), a bearing gear (23) is rotatably connected to the inner wall of the through hole (22), a gear shaft (24) is rotatably connected to the bottom wall of the sliding box body (10) through a gear rack, symmetrically arranged cams (26) are fixedly connected to the gear shaft (24), a matched gear (25) is fixedly connected to the side wall of the gear shaft (14) through a one-way bearing, and the matched gear (25) is in meshed connection with the bearing gear (23); The sliding box is characterized in that a transfer box (27) is fixedly connected to the bottom wall of the sliding box (10), a sliding plate (28) is connected to the inner side of the transfer box (27) in a sealing sliding manner, the sliding plate (28) is elastically connected with the inner side wall of the transfer box (27) through a first reset spring (29), a receiving rod (281) is symmetrically fixedly connected to the side wall of the sliding plate (28), the receiving rod (281) penetrates through the side wall of the sliding box (10) and then abuts against the side wall of an adjacent cam (26), a liquid inlet pipe and a liquid outlet pipe (30) are fixedly connected to the inner wall of the transfer box (27) in a penetrating manner, and one-way valves are arranged inside the liquid inlet pipe and the liquid outlet pipe (30).
  6. 6. The pressing device for the automobile cast iron flywheel assembly according to claim 5, wherein the bottom wall of the sliding box (10) is fixedly connected with a continuous box (31), a piston (32) is hermetically and slidingly connected inside the continuous box (31), the piston (32) is elastically connected with the inner side wall of the continuous box (31) through a second return spring (33), the side wall of the continuous box (31) is provided with a balance hole, the liquid outlet pipe (30) is fixedly communicated with the inner wall of the continuous box (31), the inner wall of the continuous box (31) is fixedly connected with a conveying pipe (34) in a penetrating manner, and an electromagnetic valve is arranged inside the conveying pipe (34); the side wall of the bottom of the vertical plate (44) is fixedly connected with an elbow spray pipe (35), and the conveying pipe (34) is fixedly communicated with the elbow spray pipe (35).
  7. 7. The pressing device for the automobile cast iron flywheel assembly according to claim 1, wherein the side wall of the Z-shaped plate (6) is fixedly connected with a cylindrical gear (20) through a connecting plate (18), and the cylindrical gear (20) is in meshed connection with a receiving gear (23).
  8. 8. The pressing device for the automobile cast iron flywheel assembly according to claim 7, wherein a tension spring (14) is fixedly connected to the side wall of the connecting plate (18), and the tension spring (14) is fixedly connected with the sliding box (10).
  9. 9. The compression fitting apparatus of an automotive cast iron flywheel assembly of claim 4 wherein the rust prevention component further comprises a lifting member to enhance rust prevention at the junction of the flywheel and the ring gear; the lifting member includes: the through groove (19) is formed in the bottom wall of the Z-shaped wedge plate (37), and a plurality of trapezoid bulges (21) are fixedly connected to the inner wall of the through groove (19); The utility model discloses a tap, including riser (44) lateral wall, backup pad (41) are fixed with to riser (44) lateral wall, backup pad (41) roof runs through sliding connection has tap pole (42), tap pole (42) lateral wall cover is equipped with spring III (43), the both ends of spring III (43) are connected with backup pad (41) and tap pole (42) rigid coupling respectively.

Description

Compression device for cast iron flywheel assembly of automobile Technical Field The invention relates to the technical field of flywheel processing, in particular to an automobile cast iron flywheel assembly pressing device. Background The flywheel assembly is used as a key component of an automobile engine and is formed by pressing a cast iron flywheel body and a gear ring through interference fit. In the pressing process, the gear ring is heated to expand, then is quickly sleeved on the periphery of the flywheel, and forms firm interference connection with the flywheel after the gear ring is cooled and contracted. The process has high requirements on the positioning precision of the gear ring and the flywheel, the stability of the pressing process and the subsequent antirust treatment of the joint surface. In the prior art, auxiliary positioning or semi-automatic lamination equipment is adopted for lamination of the flywheel and the gear ring, and the following defects are found in the actual use process: 1. after the gear ring is heated, the gear ring is required to be centered and pressed with the flywheel, the coaxiality is difficult to ensure by manual positioning, the pressing deflection is easy to cause, and the connection strength and the end surface flatness are affected; 2. the flatness detection of the end face of the pressed gear ring is usually transferred to a special detection station, the working procedure is dispersed, the efficiency is low, and the pressing quality cannot be fed back in time; 3. the joint of the flywheel and the gear ring is easy to rust due to crevice corrosion, the existing rust prevention treatment is mostly to manually spray rust prevention liquid after lamination, and the problems of uneven spraying, leakage spraying, difficult penetration of oil into tiny crevices and the like exist, so that the durability of products is affected; The existing equipment has the defects of independent operation of each functional module, low automation degree and difficulty in realizing positioning, pressing, detection and rust prevention integrated collaborative operation. Therefore, we design a pressing device for an automobile cast iron flywheel assembly. Disclosure of Invention The invention aims to solve the problems in the prior art and provides a pressing device for an automobile cast iron flywheel assembly. In order to achieve the above purpose, the present invention adopts the following technical scheme: An automotive cast iron flywheel assembly pressing device, comprising: A machine table and a rotary clamping seat fixedly connected with the machine table; the supporting frame is fixedly connected to the top wall of the machine table; the hydraulic push rod is fixedly connected with the support frame; The cross plate is fixedly connected with the movable end of the hydraulic push rod; A plurality of pressing mechanisms; the pressing mechanism comprises: the Z-shaped plate is fixedly connected to the bottom wall of the cross plate; the driving block is in sliding connection with the inner side wall of the Z-shaped plate; the circular shaft is fixedly connected with the side wall of the driving block; The sliding box is in sliding connection with the inner side wall of the Z-shaped plate, the top wall of the sliding box is provided with a groove, and the inner wall of the groove is elastically connected with a first wedge block through a spring I; The second wedge block is fixedly connected to the bottom wall of the cross plate; the connecting column is fixedly connected to the bottom wall of the sliding box, the side wall of the connecting column is fixedly connected with a spring expansion device, and the movable end of the spring expansion device is fixedly connected with a clamping plate; The pressing mechanism further comprises a detection assembly for detecting the flatness of the pressed gear ring; The pressing mechanism further comprises an anti-rust assembly so as to avoid crevice corrosion at the joint of the flywheel and the gear ring. Preferably, the cross plate bottom wall is fixedly connected with a miniature electric push rod through a mounting frame, the movable end of the miniature electric push rod is fixedly connected with the driving block, and the first wedge block moves for a certain distance and then slides against the adjacent second wedge block. Preferably, the circular shaft is in abutting contact with the side wall of the first wedge block, and the first wedge block is in sliding connection with the inner side wall of the groove. Preferably, the detection assembly comprises: the inner wall of each rectangular groove is elastically connected with a vertical plate through a second spring, the side wall of each vertical plate is provided with a wedge-shaped hole, the side wall of each driving block is fixedly connected with a Z-shaped wedge plate, and the Z-shaped wedge plate slides against the wedge-shaped hole after moving for a certain distance; th