CN-121972594-A - Automatic hot stamping and cutting process for sector gear shaft

CN121972594ACN 121972594 ACN121972594 ACN 121972594ACN-121972594-A

Abstract

The invention relates to the technical field of forging processing, and discloses an automatic hot stamping and cutting process for a sector gear shaft, which comprises a lower die holder and a lower die pad fixedly connected to the top of the lower die holder, wherein the top of the lower die pad is fixedly connected with a trimming die. Automatic transfer of finished products and automatic pushing-out cleaning of flash waste are achieved through the material receiving cup, the material pushing plate and the driving cylinders, the problem that production continuity is poor due to automatic collaborative operation of moving out of die-cut finished products and cleaning of waste when equipment is used for die-cut sector gear shaft continuous skin in the prior art is solved, and the technical effects of remarkably improving machining efficiency and achieving automatic efficient continuous production are achieved.

Inventors

ZHENG SHINIAN
DING YUANBO
LI JIKUN
QIAO SHIXUN
LIU ZHAOXIN
GAO MINGBO
Jiao Xueyan

Assignees

金马工业集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260309

Claims (10)

1. The automatic hot stamping and cutting process for the sector gear shaft comprises a lower die holder (10) and a lower die base plate (8) fixedly connected to the top of the lower die holder (10), wherein a trimming die (16) is fixedly connected to the top of the lower die base plate (8), the automatic hot stamping and cutting process is characterized by further comprising an upper die holder (1) positioned above the trimming die (16), a cushion block I (3) is fixedly connected to the bottom of the upper die holder (1), a punch head (14) is fixedly connected to the outer side of the cushion block I (3), an upper pressing ring (4) is fixedly connected to the outer side of the punch head (14), a discharging plate (7) is connected to the outer side of the upper die holder (1) through an inner hexagon screw II (6), a common discharging spring (5) is arranged on the outer side of the inner hexagon screw II (6) in a surrounding mode, an insert (15) is fixedly connected to the middle of the top end of the discharging plate (7), a positioning support (45) is fixedly connected to the side of the upper die holder (1), an air cylinder II (46), the output end of the air cylinder II (46) penetrates through the positioning support (45) and is connected with a sliding guide (44), and the sliding guide (43) is fixedly connected to the side face of the trimming die (43).
2. The automatic hot stamping process for the sector shaft according to claim 1, wherein the first cushion block (3) is fixedly connected with the upper die holder (1) through a first inner hexagon screw (2), a T-shaped nut (11) is fixedly embedded in the upper die holder (1), and a fourth inner hexagon screw (12) penetrates through the flat pad (13) and is in threaded connection with the T-shaped nut (11) so as to tightly fix the first cushion block (3).
3. The automatic hot stamping and cutting process for the sector gear shaft according to claim 1, wherein the lower die base plate (8) is fixedly connected with the lower die base (10) through a third inner hexagon screw (9), the left side and the right side of the bottom of the lower die base plate (8) are fixedly connected with the lower die base (10) through a sixth inner hexagon screw (19), a second spring pad (20) is sleeved at the top end of the sixth inner hexagon screw (19), the trimming die (16) is fixedly connected with the lower die base plate (8) through a fifth inner hexagon screw (17), and a first spring pad (18) is sleeved at the top of the fifth inner hexagon screw (17).
4. The automatic hot stamping process for the sector shaft according to claim 1, wherein a rectangular key (21) is fixedly connected to the inner side wall of the upper die holder (1), a round key I (31) is fixedly connected to the other inner side wall of the upper die holder (1), a round key II (38) is arranged at the top of the round key I (31), a through hole angle bolt (22) is arranged on the insert (15), and the end part of the through hole angle bolt (22) is connected with an external vent pipe.
5. The automatic hot stamping and cutting process for the sector shaft according to claim 1, wherein a receiving cup (23) is arranged below the trimming die (16), a cushion block two (32) is fixedly connected to the bottom of the inner side of the receiving cup (23), a base (24) is fixedly connected to the outer side of the receiving cup (23), a double-head screw (25) is rotatably connected to the side portion of the base (24), a connecting plate (26) is connected to the outer side thread of the double-head screw (25), and a hexagon nut one (27) is arranged on the side portion of the outer wall of the double-head screw (25).
6. The automatic hot stamping process for the sector shaft according to claim 5, wherein a supporting seat (30) is fixedly connected to the side portion of the upper die holder (1), a first cylinder (29) is fixedly connected to the top of the supporting seat (30), and an output end of the first cylinder (29) penetrates through the connecting plate (26) and is in threaded connection with a second hexagonal nut (28), so that the first cylinder (29) can drive the material receiving cup (23) to translate.
7. The automatic hot stamping process for the sector shaft according to claim 1, wherein a rolling guide rail (34) is fixedly connected to the upper side of the lower die holder (10), two sides of the rolling guide rail (34) are connected with the upper die holder (1) through second socket head cap screws (37), and a fixing plate (33) is arranged at the top of the rolling guide rail (34).
8. The automatic hot stamping process for the sector shaft according to claim 7, wherein a first inner hexagon screw (35) is connected to the side edge of the top of the fixing plate (33) in a threaded manner, and a cover plate (36) is sleeved outside the first inner hexagon screw (35).
9. The automatic hot stamping process for the sector shaft according to claim 1, wherein a stand column (47) is fixedly connected to the side edge of the top of the upper die holder (1) away from the second cylinder (46), the stand column (47) abuts against the second cylinder (46) to support the second cylinder (46), a lifting screw (40) is connected to the outer side surface of the stand column (47) in a threaded manner, a third round key (41) is fixedly embedded into the outer side bottom surface of the stand column (47), a third hexagon socket screw (39) is connected to the inner side surface of the lower die holder (10) in a threaded manner, and a fourth hexagon socket screw (42) is connected to the inner side surface of the lower die holder (10) away from the third hexagon socket screw (39) in a threaded manner.
10. The automatic hot stamping process for the sector shaft according to claim 1, wherein a water mist nozzle (48) is fixedly arranged on the upper side of the flash slideway (43), and the spray opening of the water mist nozzle (48) faces to the cutting edge of the trimming die (16).

Description

Automatic hot stamping and cutting process for sector gear shaft Technical Field The invention relates to the technical field of forging processing, in particular to an automatic hot stamping process for a sector gear shaft. Background The sector gear shaft is an extremely critical stress component in various mechanical transmission systems, the sector gear shaft blank edge after hot forging is inevitably attached with redundant integral skin waste, namely commonly called flash, which is usually preformed through high-temperature forging in the manufacturing process, and in order to obtain a finished gear shaft meeting the requirements of precise size and appearance, the hot forging blank with the integral skin is subjected to secondary punching processing through a professional trimming die. In the conventional hot stamping operation of the sector gear shaft, the operation flow is often controlled by means of manual intervention or a semi-automatic mechanical structure, and because the hot stamping process is under a severe working condition of high temperature and high pressure, after the die punch cuts off the connecting skin, the cut high Wen Feibian waste is extremely easy to generate serious physical adhesion with the punching die. The conventional processing equipment generally lacks an automatic pneumatic discharging mechanism capable of instantly releasing high pressure, so that waste material demolding is difficult, the production rhythm can be frequently interrupted, and the risks of die locking and tipping can be greatly increased. Meanwhile, after the single hot stamping operation is finished, the finished sector gear shaft and the cut high Wen Feibian waste are always left in the working area of the lower die at the same time, the conventional equipment cannot realize the rapid outward transfer of the finished forging piece and the synchronous pushing and cleaning of the flash waste at the moment of finishing stamping, so that serious action faults exist in the feeding and discharging links, and the continuous accumulated high temperature and residual metal oxide skin fragments can promote the rapid annealing and the aggravation of abrasion of the trimming die due to the lack of an instant impurity blowing and physical cooling mechanism for the cutting edge of the die in the working area. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an automatic hot stamping process for a sector gear shaft, which solves the problems that the existing equipment can not realize automatic collaborative operation of moving out of a stamped finished product and cleaning waste when stamping the continuous skin of the sector gear shaft, and the die is worn fast and has poor production consistency due to the lack of an effective unloading and die cooling protection mechanism. The automatic hot stamping and cutting process for the sector gear shaft is characterized by further comprising an upper die base positioned above the trimming die, a cushion block I is fixedly connected to the bottom of the upper die base, a punch head is fixedly connected to the bottom of the cushion block I, an upper pressing ring is fixedly connected to the outer side of the punch head, two sides of the upper die base are connected with a discharge plate through an inner hexagon screw II, a common discharge spring is arranged around the outer side of the inner hexagon screw II, an insert is fixedly connected to the middle of the top end of the discharge plate, a positioning bracket is fixedly connected to the upper side of the upper die base, a cylinder II is fixedly connected to the side of the positioning bracket, the output end of the cylinder II penetrates through the positioning bracket and is fixedly connected with a material pushing plate, a flash slide is obliquely and fixedly connected to the side surface of the trimming die, and the material pushing plate and the flash slide are in horizontal corresponding sliding fit. Preferably, the first cushion block is fixedly connected with the upper die holder through a first inner hexagon screw, a T-shaped nut is embedded in the upper die holder, and the fourth inner hexagon screw penetrates through the flat pad and is in threaded connection with the T-shaped nut so as to tightly press and fix the first cushion block. Preferably, the lower die pad plate is fixedly connected with the lower die holder through a third inner hexagon screw, the left side and the right side of the bottom of the lower die pad plate are fixedly connected with the lower die holder through a sixth inner hexagon screw, a second spring pad is sleeved at the six top ends of the inner hexagon screw, the trimming die is fixedly connected with the lower die pad plate through a fifth inner hexagon screw, and a first spring pad is sleeved at the five top ends of the inner hexagon screw. Preferably, the side wall inside the upper die holder is fixedly connected with a rectangular key,