CN216370016U - Rocking arm axle profile of tooth forging and pressing forming die - Google Patents

Abstract

The utility model discloses a tooth-shaped forging and pressing forming die for a rocker arm shaft, which comprises an upper die plate, a spring post, a guide post, a pressing block assembly, an upper die fixing block, a middle pressing plate, a guide post, a guide plate, a die fixing block, a lower die fixing block, a lengthened cushion block, a reset spring and an anti-overflow block, wherein the reset spring is arranged in a lower die cylinder in the lower die fixing block, the upper end of the lower die fixing block is connected with the die fixing block through the lengthened cushion block, the outer side of the lower die fixing block is connected with the guide plate through a bolt, the upper end of the guide post is connected with the upper die fixing block through the middle pressing plate, the anti-overflow block is arranged on the lower surface of an upper die cylinder in the upper die fixing block, the upper die fixing block is connected with a punch in the pressing block assembly, and the upper die plate is arranged at the upper end of the pressing block assembly. The production efficiency is greatly improved.

Description

Rocking arm axle profile of tooth forging and pressing forming die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a rocking arm shaft tooth-shaped forging and pressing forming die.

Background

The sector is the spare part of car RCB steering gear, in the production process of sector, involve the sector unloading, forge, normalizing, throw the ball, carve processes such as mark, utilize current sector forming die, in the sector forging process, the sector back of the body has a large amount of cinder to pile up, the sector back of the body is folding defects, lead to in the production process rejection rate at present high, it wastes time and energy to eliminate this defect in-process at follow-up mode forging, and manufacturing cost is higher, therefore, the sector back of the body defect that can effectively reduce is urgently needed to design, rejection rate is low, the high sector forming die of production efficiency.

Chinese patent CN 209664128U discloses a sector forming die, which is formed by extrusion with a press, but the use of the sector forming die has the following problems: 1. the lower ejector rod ejects the formed workpiece through external force after the workpiece is subjected to pressure maintaining, so that external equipment is added, the production cost is increased, meanwhile, the whole upper die system can eject the workpiece after the pressure maintaining is carried out, certain non-rated consumption is caused, and the working efficiency is lower; 2. go up the mould fixed block and carry out the extrusion of drift after the pressfitting with lower mould fixed block, nevertheless go up the mold core and do not have any anti-overflow measure with lower mold core junction, the phenomenon that the burr spills over in the difficult emergence of junction under high-strength pressure just needs later stage secondary operation, takes trouble hard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provides a tooth-shaped forging and pressing forming die for a rocker shaft, which can realize self-ejection in a non-pressure state by utilizing a return spring and realize the mutual matching of anti-overflow blocks, thereby realizing the tooth sector forming die with low production cost, high processing precision, low rejection rate and high production efficiency, effectively reducing the back defect of a tooth sector, providing convenience for people and effectively solving the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a rocking arm axle profile of tooth forging and pressing forming die, including the cope match-plate pattern, the spring post, the guide pillar, the briquetting subassembly, go up the mould fixed block, the medium pressure board, the guide post, the deflector, the model fixed block, the lower mould fixed block, add the long cushion, reset spring and anti-overflow piece, be equipped with reset spring in the lower mould barrel in the lower mould fixed block, reset spring passes through the cushion and is connected with outside work piece, lower mould fixed block upper end is connected with the model fixed block through adding the long cushion, and the lower mould fixed block outside is connected with the deflector through the bolt, deflector left side and guide pillar lower extreme sliding connection, the guide pillar upper end is connected with last mould fixed block through the medium pressure board, last mould barrel lower surface in the mould fixed block is equipped with the anti-overflow piece, and go up the mould fixed block and be connected with the drift in the briquetting subassembly, briquetting subassembly right-hand member is equipped with spring post and guide pillar, and briquetting subassembly upper end is equipped with the cope match-plate.

Furthermore, the model fixing block comprises a model barrel, a groove corresponding to the anti-overflow block is formed in the model barrel, the model barrel is connected with the mold through a backing ring, and a sector-shaped eccentric structure is arranged in the mold.

Further, go up the mould fixed block and include the mould barrel, go up the mould barrel and be connected with last mould through threaded connection's mode, go up the mould inner structure unanimous with the inner structure of the mould in the model fixed block.

Further, the lower die fixing block comprises a base plate, the base plate is connected with the lower die barrel through a bolt, and the lower die barrel is connected with the lengthened cushion block in a threaded connection mode.

Compared with the prior art, the utility model has the beneficial effects that: the tooth-shaped forging forming die for the rocker arm shaft has the following advantages:

1. the reset spring is arranged on the mould pressing device, after a workpiece is formed, the formed workpiece is automatically ejected by the reset spring in the process of upward movement of the upper mould integral system after pressure maintaining, so that the workpiece is not required to be ejected by external force, and meanwhile, the upper mould integral system does not need to be stopped to work in the next step when moving upward, the waste of non-rated time is avoided, and the production efficiency is greatly improved.

2. The anti-overflow block is arranged on the mould, and the anti-overflow block at the lower end of the upper mould fixing block is matched with the groove on the mould cylinder body in the extrusion process, so that the workpiece is prevented from overflowing under strong pressure to cause a burr phenomenon, the workpiece can be formed at one time, the processing precision of the workpiece is improved, and secondary processing is avoided.

3. The utility model is provided with the lengthening cushion block, can select the proper lengthening cushion block by utilizing threaded connection according to the length of the workpiece, and can replace different dies by utilizing the threaded connection, thereby leading the device to be suitable for forging the workpieces with different lengths and different shapes.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention.

In the figure: the anti-overflow device comprises an upper template 1, a spring column 2, a guide column 3, a pressing block assembly 4, an upper die fixing block 5, an upper die barrel 51, an upper die mold 52, a middle pressing plate 6, a guide column 7, a guide plate 8, a mold fixing block 9, a mold barrel 91, a mold 92, a lower die fixing block 10, a base plate 101, a lower die barrel 102, a lengthened cushion block 11, a return spring 12 and an anti-overflow block 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a tooth-shaped forging and pressing forming die for a rocker arm shaft comprises an upper die plate 1, a spring post 2, a guide post 3, a pressing block assembly 4, an upper die fixing block 5, a middle pressing plate 6, a guide post 7, a guide plate 8, a die fixing block 9, a lower die fixing block 10, a lengthened cushion block 11, a reset spring 12 and an anti-overflow block 13, wherein the reset spring 12 is arranged in a lower die cylinder 102 in the lower die fixing block 10 and is connected with an external workpiece through the cushion block, after the workpiece is formed, the formed workpiece is automatically ejected out by the reset spring 12 in the upward movement process of an upper die integral system after pressure maintaining, the formed workpiece is not required to be ejected out by external force, meanwhile, the upper die integral system does not need to stop working at the next step when moving upward, the waste of non-rated time is avoided, the production efficiency is greatly improved, the upper end of the lower die fixing block 10 is connected with the die fixing block 9 through the lengthened cushion block 11, and the lengthened cushion block 11 which is suitable for screw connection can be selected according to the length of the workpiece, meanwhile, different dies can be replaced by utilizing threaded connection, so that the device is suitable for forging workpieces with different lengths and different shapes, the outer side of a lower die fixing block 10 is connected with a guide plate 8 through a bolt, the left side of the guide plate 8 is connected with the lower end of a guide post 7 in a sliding manner, the upper and lower concentricity of the die can be improved by the mutual matching of the guide plate 8 and the guide post 7, so that the machining precision of the die is improved, the upper end of the guide post 7 is connected with an upper die fixing block 5 through a middle pressing plate 6, an anti-overflow block 13 is arranged on the lower surface of an upper die cylinder 51 in the upper die fixing block 5, the anti-overflow block 13 is matched with a groove on a model cylinder 91 in the extrusion process, so that the workpiece is prevented from overflowing to cause a burr phenomenon under strong pressure, and can be formed at one time, the machining precision of the workpiece is improved, secondary machining is avoided, the upper die fixing block 5 is connected with a punch in a pressing block assembly 4, and the right end of the pressing block assembly 4 is provided with a spring post 2 and a guide post 3, and briquetting subassembly 4 upper end is equipped with cope match-plate pattern 1, model fixed block 9 includes model barrel 91, be equipped with the recess corresponding with anti-overflow piece 13 on the model barrel 91, and model barrel 91 is connected with mould 92 through the backing ring, be the eccentric structure of sector form in the mould 92, thereby it carries the defect to reduce sector fan, production efficiency increases substantially, it includes mould barrel 51 to go up mould fixed block 5, it is connected with last mould 52 through threaded connection's mode to go up mould barrel 51, it is unanimous with the inner structure of mould 92 in the model fixed block 9 to go up mould 52 inner structure, lower mould fixed block 10 includes backing plate 101, backing plate 101 passes through the bolt and is connected with lower mould barrel 102, and lower mould barrel 102 passes through threaded connection's mode and is connected with extension cushion 11.

When in use: firstly, selecting a proper die 92 and a lengthened cushion block 11 according to the length and the shape of a workpiece, then installing the die 92 and an upper die 52 which have the same internal structure, then placing the heated red hot bar into the die 92, starting a press machine to enable an upper die integral system to move downwards, when an upper die cylinder 51 is pressed with a model cylinder 91, an anti-overflow block 13 is tightly pressed with a groove on the model cylinder 91, at the moment, a punch head in a pressing block assembly 4 compresses a spring column 2 to move downwards continuously, a return spring 12 at the lower end of the red hot bar moves downwards along with the pressure of the punch head in the pressing block assembly 4 until the red hot bar is extruded to fill the die 91, after the processing is finished, the upper die integral system moves upwards, the return spring 12 automatically pops out the formed workpiece through the cushion block to take out the workpiece, and the whole forming action process is finished, and the utility model has simple structure, the anti-overflow device has the advantages that the design is ingenious, workpieces do not need to be popped out automatically by means of external equipment, trouble and labor are saved, meanwhile, the anti-overflow block is utilized to guarantee the machining precision and the forming degree of the workpieces, and the production efficiency is greatly improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a rocking arm axle profile of tooth forging and pressing forming die, includes cope match-plate pattern (1), spring post (2), guide pillar (3), briquetting subassembly (4), goes up mould fixed block (5), well clamp plate (6), guide pillar (7), deflector (8), model fixed block (9), lower mould fixed block (10), extension cushion (11), reset spring (12) and anti-overflow piece (13), its characterized in that: be equipped with reset spring (12) in lower mould barrel (102) in lower mould fixed block (10), reset spring (12) are connected with outside work piece through the cushion, lower mould fixed block (10) upper end is connected with model fixed block (9) through extension cushion (11), and the lower mould fixed block (10) outside is passed through the bolt and is connected with deflector (8), deflector (8) left side and guide post (7) lower extreme sliding connection, guide post (7) upper end is connected with last mould fixed block (5) through well clamp plate (6), last mould barrel (51) lower surface in last mould fixed block (5) is equipped with anti-overflow piece (13), and go up the punch connection in mould fixed block (5) and briquetting subassembly (4), briquetting subassembly (4) right-hand member is equipped with spring post (2) and guide pillar (3), and briquetting subassembly (4) upper end is equipped with cope match-plate pattern (1).

2. The tooth-shaped forging and pressing forming die for the rocker arm shaft as claimed in claim 1, wherein: the model fixing block (9) comprises a model cylinder (91), a groove corresponding to the anti-overflow block (13) is formed in the model cylinder (91), the model cylinder (91) is connected with the mold (92) through a backing ring, and a sector-shaped eccentric structure is arranged in the mold (92).

3. The tooth-shaped forging and pressing forming die for the rocker arm shaft as claimed in claim 1, wherein: the upper die fixing block (5) comprises an upper die cylinder (51), the upper die cylinder (51) is connected with an upper die (52) in a threaded connection mode, and the internal structure of the upper die (52) is consistent with that of a die (92) in the model fixing block (9).

4. The tooth-shaped forging and pressing forming die for the rocker arm shaft as claimed in claim 1, wherein: the lower die fixing block (10) comprises a base plate (101), the base plate (101) is connected with a lower die cylinder (102) through bolts, and the lower die cylinder (102) is connected with the lengthened cushion block (11) in a threaded connection mode.

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