CN112692183A

CN112692183A - Forming die of automobile transmission internal gear

Info

Publication number: CN112692183A
Application number: CN202011581357.5A
Authority: CN
Inventors: 洪政平
Original assignee: Tianjin Nuoruixin Precision Electronic Co ltd
Current assignee: Tianjin Nuoruixin Precision Electronic Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-23

Abstract

The invention provides a forming die of an internal gear of an automobile gearbox, which is characterized by comprising an upper die, a cylinder, a side die, a lower die, a propelling mechanism and a connecting mechanism, wherein the cylinder is arranged at the top of the upper die and is connected with an external air compressor, the lower die is arranged at the lower side of the upper die, the side die is welded on the side wall of the lower die, the connecting mechanism and the propelling mechanism are arranged in the side die, and the propelling mechanism is arranged in the lower die.

Description

Forming die of automobile transmission internal gear

Technical Field

The invention relates to the technical field of gear forming, in particular to a forming die for an internal gear of an automobile gearbox.

Background

The automobile gearbox is a set of speed changing devices used for coordinating the rotating speed of an engine and the actual running speed of wheels, and is used for exerting the optimal performance of the engine, gears are mechanical elements which are provided with teeth on wheel rims and can be continuously meshed to transmit motion and power, and are mechanical parts which are mutually meshed and provided with teeth, in the rapid development of the current industry, the gears are used more frequently, and particularly, a large amount of various gear transmissions are used in the automobile gearbox;

the gear forming die in the prior art is characterized in that the top of the upper die is connected with an air cylinder, the upper die is driven to move downwards under the action of the air cylinder to punch a workpiece on the lower die, so that the purpose of gear forming is achieved, but after one-time punch forming of the existing forming die, a formed gear directly drops into the collecting box from a feed opening of the lower die, but waste materials generated in the gear forming and punching process are left on the lower die, the waste materials are required to be manually moved away from the lower die by using clamping pincers and then manually fed, the next gear punch forming can be carried out, the process is manually operated, the processes of frequently clamping and feeding the waste materials are carried out, a large amount of time is wasted, the gear forming efficiency is reduced, and most of the waste materials are metal products, and in the process of manually clamping the waste materials for a long time, the labor intensity of workers can be increased, and the output of manpower is increased.

Disclosure of Invention

According to the technical problem, the invention provides a forming die for an internal gear of an automobile gearbox, which is characterized by comprising an upper die, a cylinder, a side die, a lower die, a propelling mechanism and a connecting mechanism, wherein the cylinder is installed at the top of the upper die and is connected with an external air compressor;

the connecting mechanism consists of a movable plate, a rotating shaft, a movable rod, a spring, a connecting rod and a rack, the rotating shaft is installed at the top of the side mold, the movable plate is installed at the rotating shaft, a connecting rod groove is formed in the side mold, the movable rod is arranged in the connecting rod groove, the left end of the movable rod is in contact with the movable plate, the left end of the spring rod is welded at the right end of the movable rod, the spring rod groove is formed in the right side wall of the side mold, the spring rod groove and the connecting rod groove are formed in the same straight line, the right end of the spring rod penetrates through the spring rod groove formed in the right side wall of the side mold and extends to the outer side of the side mold, the spring is sleeved on the outer side wall of the spring rod, one end of the spring is welded on the movable rod, the other end of the spring is welded at the right end of the connecting rod groove, the connecting rod is welded at, the top of the connecting rod is welded with a rack;

the pushing mechanism consists of a gear, a pushing rod, a non-slip mat, a mounting plate, a positioning rod and a locking plate, a gear groove is formed in the lower die, the gear is mounted in the gear groove through a gear connecting shaft, the lower end of the gear is meshed with a rack welded to the top of the connecting rod, the pushing rod is arranged in the left side of the gear groove, the rack is welded to the right end of the pushing rod, the pushing rod is meshed with the left end of the gear through the rack, the non-slip mat is mounted at the upper end of the pushing rod through the gear groove, a movable opening is formed in the lower end of the pushing rod, a positioning groove is formed in the lower die, the positioning rod is arranged in the positioning groove, a locking groove is formed in the positioning rod, the locking plate is arranged in the locking groove, one end of a spring is welded to the left end of, the upper end of locating lever passes the upside that the constant head tank extends to the lower mould, the lower extreme welding of locating lever has the upper end of spring lever, the spring lever hole has been seted up to the bottom of lower mould, and this spring lever hole is seted up on same straight line with the constant head tank, the spring lever groove that the lower extreme of spring lever passed the bottom of lower mould and seted up extends to the bottom of lower mould, the lateral wall cover of spring lever is equipped with the spring, the one end welding of spring is on the locating lever, the other end welding of spring is at the lower extreme of constant head tank, the locking through-hole has been seted up on the right side wall of constant head tank, the expansion joint that the left end of connecting rod passed the propulsion pole lower extreme and seted up sets up the inside at the locking through-hole, the locking.

The invention has the beneficial effects that:

the invention adds the pushing mechanism and the connecting mechanism, the upper die can extrude the movable plate positioned at the left side of the side die when the cylinder drives the upper die to descend, the movable plate extrudes the movable rod to move rightwards, the connecting rod connected with the movable rod drives the pushing rod to move downwards under the action of meshing between the gear racks, so that the pushing rod is accommodated in the lower die without interfering the process of forming the workpiece, after the workpiece is processed, the cylinder drives the upper die to move upwards, the ascending upper die does not apply extrusion force to the movable plate any more, the movable rod moves leftwards under the action of the spring and drives the movable rod to move leftwards, so that the movable rod drives the pushing rod to move upwards under the action of meshing between the gear racks, the processed waste material is pushed out under the action of the pushing rod which moves upwards, and the process does not need manual operation, the phenomenon that the waste materials need to be manually moved from the lower die by the clamping pincers in the prior art is avoided, the pushing rod is used for pushing the waste materials out, manual participation is not needed, a large amount of labor cost is saved, manual output is reduced, time is saved, and the gear forming efficiency is improved.

Drawings

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

FIG. 2 is a schematic view of the gear of the present invention;

FIG. 3 is an enlarged view of the invention at A;

FIG. 4 is a diagram of the present invention in use;

FIG. 5 is an enlarged view of the invention at B.

As shown in the figure: 1-upper die, 11-cylinder, 2-side die, 21-movable plate, 22-rotating shaft, 23-movable groove, 24-movable rod, 25-spring rod, 26-spring, 27-connecting rod groove, 28-connecting rod, 3-lower die, 31-gear groove, 32-gear, 33-rack, 34-pushing rod groove, 35-pushing rod, 36-non-slip mat, 37-mounting plate, 38-movable opening, 4-positioning rod, 41-locking plate and 42-locking through hole.

Detailed Description

Example 1

The invention provides a forming die of an internal gear of an automobile gearbox, which is characterized by comprising an upper die 1, a cylinder 11, a side die 2, a lower die 3, a propelling mechanism, a connecting mechanism and an auxiliary stabilizing mechanism, wherein the cylinder 11 is installed at the top of the upper die 1, the cylinder 11 is connected with an external air compressor, the lower side of the upper die 1 is provided with the lower die 3, the side die 2 is welded on the side wall of the lower die 3, the connecting mechanism is arranged inside the side die 2, and the propelling mechanism is arranged inside the lower die 3;

the connecting mechanism comprises a movable plate 21, a rotating shaft 22, a movable rod 24, a spring rod 25, a spring 26, a connecting rod 28 and a rack, the rotating shaft 22 is installed at the top of the side die 2, the movable plate 21 is installed at the position of the rotating shaft 22, a connecting rod groove 27 is formed in the side die 2, the movable rod 24 is arranged in the connecting rod groove 27, the left end of the movable rod 24 is contacted with the movable plate 21, the left end of the spring rod 25 is welded at the right end of the movable rod 24, a spring rod 25 groove is formed in the right side wall of the side die 2, the spring rod 25 groove and the connecting rod groove 27 are arranged on the same straight line, the right end of the spring rod 25 penetrates through the spring rod 25 groove formed in the right side wall of the side die 2 and extends to the outer side of the side die 2, the spring 26 is sleeved on the outer side wall of the spring rod 25, one end of the spring 26 is welded on the movable rod 24, the other end, the section of the connecting rod 28 is of an L-shaped structure, and a rack is welded at the top of the connecting rod 28;

the propulsion mechanism comprises a gear 32, a propulsion rod 35, an anti-slip pad 36, a mounting plate 37, a positioning rod 4 and a locking plate 41, a gear groove 31 is formed in the lower die 3, the gear 32 is mounted in the gear groove 31 through a gear 32 connecting shaft, the lower end of the gear 32 is meshed with a rack welded to the top of the connecting rod 28, the propulsion rod 35 is arranged in the left side of the gear groove 31, a rack is welded to the right end of the propulsion rod 35, the propulsion rod 35 is meshed with the left end of the gear 32 through the rack, the anti-slip pad 36 is mounted at the upper end of the propulsion rod 35 through the gear groove 31, a movable opening 38 is formed in the lower end of the propulsion rod 35, a positioning groove is formed in the lower die 3, the positioning rod 4 is arranged in the positioning groove, the locking groove is formed in the positioning rod 4, the locking plate 41 is arranged in the locking groove, one end of, the upper end of locating lever 4 passes the upside that the constant head tank extended to lower mould 3, the lower extreme welding of locating lever 4 has the upper end of spring beam 25, spring beam 25 hole has been seted up to the bottom of lower mould 3, this spring beam 25 hole is seted up on same straight line with the constant head tank, the spring beam 25 groove that the lower extreme of spring beam 25 passed the bottom of lower mould 3 and seted up extends to the bottom of lower mould 3, spring beam 25's lateral wall cover is equipped with spring 26, the one end welding of spring 26 is on locating lever 4, the other end welding of spring 26 is at the lower extreme of constant head tank, locking through-hole 42 has been seted up on the right side wall of constant head tank, the expansion joint 38 that the lower extreme was seted up is passed to the left end of connecting rod 28 sets up the inside at locking through-hole 42, the locking.

Example 2

When the invention is used, a workpiece is manually placed on the positioning rod 4 and the pushing rod 35 of the lower die 3, at the moment, the positioning rod 4 and the pushing rod 35 are on the same straight line, the positioning rod 4 and the pushing rod 35 together lift the workpiece, the cylinder 11 is manually opened to be externally connected with an air compressor, the upper die 1 moves downwards under the action of the cylinder 11, the upper die 1 in the moving process can extrude the movable plate 21 on the left side of the side die 2, the movable plate 21 moves rightwards under the action of the rotating shaft 22, the movable plate 21 moving rightwards can drive the connecting rod 28 to move rightwards together, the connecting rod 28 moves and simultaneously drives the gear 32 to rotate together through the rack, the rotating gear 32 drives the pushing rod 35 to descend together through the meshing action between the gear 32 and the rack, at the moment, the pushing rod 35 leaves the locking through hole 42 formed in the right side wall of the positioning groove, and in the descending process of the upper die 1, the pushing, the forming process of the workpiece cannot be interfered, at the moment, the upper die 1 simultaneously extrudes the positioning rod 4, the positioning rod 4 is contracted into the lower die 3, the locking plate 41 can push the locking plate 41 to limit the locking plate in the locking through hole 42 formed in the right side wall of the positioning groove under the action of the spring 26 in the positioning rod 4, after the upper die 1 and the lower die 3 finish the processing of the workpiece, the air cylinder 11 drives the upper die 1 to move upwards, so that the upper die 1 does not extrude the movable plate 21 any more, at the moment, the movable rod 24 moves leftwards under the action of the spring 26, so that the movable rod 24 drives the pushing rod 35 to move upwards under the action of the gear 32 rack, the waste generated by the forming of the gear 32 is left on the lower die 3, at the moment, the processed waste is ejected under the action of the pushing rod which moves upwards, and meanwhile, the addition of the rubber antiskid pad 36 in the invention ensures that the waste is, the phenomenon that the waste material slips away can not occur, and the blanking efficiency of the invention is ensured;

in addition, after the waste material is ejected, the pushing rod 35 returns to the original position, and at this time, the leftmost end of the connecting rod 28 is located in the locking through hole 42 formed in the right side wall of the positioning groove, so that the locking plate 41 is ejected leftwards, and the positioning rod 4 is ejected upwards under the action of the spring 26 at the lower end of the positioning rod 4, so that the positioning rod 4 and the pushing rod 35 are kept on the same straight line after the next processing.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. While the invention has been described with respect to the above embodiments, it will be understood by those skilled in the art that the invention is not limited to the above embodiments, which are described in the specification and illustrated only to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A forming die for an internal gear of an automobile gearbox is characterized by comprising an upper die, a cylinder, a side die, a lower die, a propelling mechanism and a connecting mechanism, wherein the cylinder is installed at the top of the upper die and is connected with an external air compressor;

the connecting mechanism consists of a movable plate, a rotating shaft, a movable rod, a spring, a connecting rod and a rack, the top of the side mould is provided with a rotating shaft, the rotating shaft is provided with a movable plate, the inside of the side mould is provided with a connecting rod groove, a movable rod is arranged in the connecting rod groove, the left end of the movable rod is contacted with the movable plate, the right end of the movable rod is welded with the left end of the spring rod, the right side wall of the side mold is provided with a spring rod groove, the spring rod groove and the connecting rod groove are arranged on the same straight line, the right end of the spring rod passes through the spring rod groove arranged on the right side wall of the side mold and extends to the outer side of the side mold, a spring is sleeved on the outer side wall of the spring rod, one end of the spring is welded on the movable rod, the other end of the spring is welded at the right end of the connecting rod groove, a connecting rod is welded at the lower end of the movable rod, and a rack is welded at the top of the connecting rod;

2. The mold for molding an internal gear of an automobile transmission according to claim 1, wherein the connecting rod has an "L" shaped cross section.