CN215615075U

CN215615075U - Powder metallurgy die of multi-step belt pulley

Info

Publication number: CN215615075U
Application number: CN202122061182.1U
Authority: CN
Inventors: 高山; 蒋宏兴
Original assignee: Changzhou Great Powder Metallurgy Co ltd
Current assignee: Changzhou Great Powder Metallurgy Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-01-25
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a powder metallurgy die for a multi-step belt pulley, which comprises a workbench, wherein the upper end of the workbench is fixedly connected with a lower die, a core rod is arranged in the lower die, and a second forming cavity is formed in the upper left end of the lower die; the mounting table is integrally connected to the upper left end of the workbench, a feeding mechanism is arranged at the upper end of the mounting table, and the feeding mechanism comprises a connecting seat, a connecting block, a connecting frame, a gear, a first motor, a bearing plate, a storage box and a discharging pipe; and the connecting mechanism is arranged on the upper side of the workbench and comprises a connecting plate, a threaded rod, a first connecting piece, a transmission belt, a second connecting piece and a second motor, wherein the threaded rod is rotatably connected to the front end and the rear end of the workbench. This powder metallurgy die of multi-step belt pulley not only is convenient for add the powder in the lower mould, prevents to go up the mould when the compound die moreover and produces crooked, increases the stability of structure during the pay-off simultaneously easily.

Description

Powder metallurgy die of multi-step belt pulley

Technical Field

The utility model relates to the related technical field of multi-step belt pulleys, in particular to a powder metallurgy die for a multi-step belt pulley.

Background

The belt pulley is an indispensable part in an automobile engine, wherein the belt pulley in the automobile engine has the advantages of simple and convenient installation, stable transmission and the like, a powder metallurgy die is used when the multi-step belt pulley is produced, and the multi-step belt pulley is formed and sintered through the powder metallurgy die.

However, as the utility model with the granted publication number CN205702432U and the publication number 2016-11-23, a powder metallurgy die for a multi-step belt pulley is disclosed, which comprises a pressing part and a forming part, wherein the pressing part is arranged at the upper part of the forming part, the pressing part comprises an upper inner die stamping pad, an upper inner die is fixed under the upper inner die stamping pad, an upper outer die stamping pad is arranged at the outer side of the top of the upper inner die, an upper outer die is fixed at the lower part of the upper outer die stamping pad, and the upper outer die stamping is arranged closely attached to the upper inner die; the forming part comprises a core rod connecting rod and a core rod arranged at the top of the core rod connecting rod, a middle die is arranged around the core rod, a forming gap is arranged between the core rod and the middle die, and metallurgical powder is filled in the forming space; the bottom of the forming gap is provided with a lower inner punch and a lower outer punch around the core rod, the lower inner punch is arranged close to the core rod, and the lower outer punch is arranged close to the lower inner punch. The die can obviously improve the efficiency of the hydraulic press for producing the multi-step belt pulley.

The above prior art scheme has the following defects that not only powder is not convenient to add into the lower die, but also the upper die is easy to skew during die assembly, and meanwhile, the structure is easy to be unstable during feeding, so that a powder metallurgy die with a multi-step belt pulley is provided, and the problems provided in the above are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a powder metallurgy die for a multi-step belt pulley, which solves the problems that the powder metallurgy die for the general multi-step belt pulley proposed in the background art is not convenient to add powder into a lower die, an upper die is easy to deflect during die assembly, and the structure is easy to be unstable during feeding.

In order to achieve the purpose, the utility model provides the following technical scheme: a powder metallurgy die for a multi-step belt pulley comprises a workbench, wherein the upper end of the workbench is fixedly connected with a lower die, a core rod is arranged in the lower die, a second forming cavity is formed in the upper left end of the lower die, and a first forming cavity is formed in the upper right end of the lower die;

the mounting table is integrally connected to the upper left end of the workbench, a feeding mechanism is arranged at the upper end of the mounting table, and the feeding mechanism comprises a connecting seat, a connecting block, a connecting frame, a gear, a first motor, a bearing plate, a storage box and a discharging pipe;

and the connecting mechanism is arranged on the upper side of the workbench and comprises a connecting plate, a threaded rod, a first connecting piece, a transmission belt, a second connecting piece and a second motor, wherein the threaded rod is connected to the front end and the rear end of the workbench in a rotating manner, and the second motor is arranged at the bottom end of the threaded rod on the front side.

Through adopting above-mentioned technical scheme, not only be convenient for add the powder in the lower mould, prevent to go up the mould when the compound die moreover and produce crooked, increase the stability of structure easily during the pay-off simultaneously.

As a preferred technical scheme of the utility model, the connecting seat is integrally connected to the upper end of the mounting table in a front-back symmetrical mode, the connecting block with the cross section in a T-shaped structure is arranged in the connecting seat in a sliding mode, the inner end of the connecting block is connected to the front end and the rear end of the connecting frame in a welding mode, and the inner end of the connecting frame is meshed with the gear.

Through adopting above-mentioned technical scheme, because the integration of connecting seat longitudinal symmetry is connected in the upper end of mount table, and the inside slip of connecting seat is provided with the connecting block that the cross section is "T" style of calligraphy structure, consequently, increases the stability of structure during the pay-off easily, because the inner meshing of joint box has the gear, consequently is convenient for add the powder in the lower mould.

As the preferred technical scheme of the utility model, the lower end of the gear is rotatably connected inside the upper end of the mounting table, the bottom end of the gear is provided with the first motor, and the bearing plate is in a sliding structure on the upper side of the mounting table through the connecting frame and the gear;

wherein, loading board fixed connection is in the upper end of connecting frame, and the right-hand member block of loading board is connected with the storage tank.

Through adopting above-mentioned technical scheme, because the loading board is sliding construction through the upper side of splice frame and gear at the mount table, the right-hand member block of loading board is connected with the storage tank, is convenient for add the powder in the lower mould consequently.

As a preferable technical scheme, the right lower end of the storage box is connected with a blanking pipe through a bolt, and the blanking pipe is arranged in an inclined shape.

Through adopting above-mentioned technical scheme, because the right lower extreme bolted connection of storage tank has the unloading pipe, and the unloading pipe is the slope form setting, consequently is convenient for add the powder in the lower mould.

As a preferred technical scheme, the threaded rod is in threaded connection with the inner parts of the front end and the rear end of the connecting plate, the connecting plate is installed on an upper die, the upper die and the lower die are in one-to-one correspondence in position, the first connecting piece is fixedly connected to the top end of the threaded rod on the rear side, and the first connecting piece is in transmission connection with the second connecting piece through a transmission belt.

By adopting the technical scheme, the upper die and the lower die are in one-to-one correspondence in position, and the first connecting piece is in transmission connection with the second connecting piece through the transmission belt, so that the upper die is prevented from being skewed during die assembly.

As a preferred technical scheme of the utility model, the second connecting piece is integrally connected to the top end of the front threaded rod, the longitudinal sections of the second connecting piece and the first connecting piece are both in an I-shaped structure, the diameter of the inner end of the first connecting piece is smaller than that of the inner end of the second connecting piece, and the upper die moves up and down on the upper side of the workbench through the first connecting piece and the threaded rod.

By adopting the technical scheme, the longitudinal sections of the second connecting piece and the first connecting piece are of the I-shaped structure, the inner end diameter of the first connecting piece is smaller than that of the second connecting piece, and the upper die is lifted on the upper side of the workbench through the first connecting piece and the threaded rod, so that the upper die is prevented from being skewed during die assembly.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, by arranging the feeding mechanism and the structural design of the bearing plate and the mounting platform, the gear is meshed with the inner end of the connecting frame when rotating, the gear and the connecting frame drive the storage box to slide towards the right end, the discharging pipe is arranged in an inclined manner, so that powder in the storage box enters the second forming cavity through the discharging pipe, and the powder is conveniently added into the lower die;

2. according to the utility model, by arranging the connecting mechanism and the structural design of the upper die and the workbench, the threaded rod at the rear side is driven to rotate through the transmission belt when the threaded rod at the front side rotates, and the threaded rod drives the connecting plate to lift, so that the upper die is prevented from being inclined when the die is closed;

3. according to the utility model, the feeding mechanism is arranged, the connecting block with the T-shaped cross section is arranged in the connecting seat in a sliding manner, so that the connecting block slides left and right in the connecting seat when the connecting frame slides left and right, and the connecting frame is prevented from being inclined through the connecting block, thereby easily increasing the structural stability during feeding.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic top sectional view of the gear and the connecting frame according to the present invention;

FIG. 3 is a left side view of the connecting structure of the connecting base and the connecting block of the present invention;

FIG. 4 is a right side view of the second connecting member of the present invention in connection with a belt.

In the figure: 1. a work table; 2. a lower die; 3. a core rod; 4. a first molding cavity; 5. a second molding cavity; 6. an installation table; 7. a feeding mechanism; 701. a connecting seat; 702. connecting blocks; 703. a connecting frame; 704. a gear; 705. a first motor; 706. a carrier plate; 707. a storage box; 708. a discharging pipe; 8. an upper die; 9. a connecting mechanism; 901. a connecting plate; 902. a threaded rod; 903. a first connecting member; 904. a transmission belt; 905. a second connecting member; 906. a second motor.

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. 1-4, the present invention provides the following technical solutions: a powder metallurgy die of a multi-step belt pulley comprises a workbench 1, a lower die 2, a core rod 3, a first forming cavity 4, a second forming cavity 5, a mounting table 6, a feeding mechanism 7, an upper die 8 and a connecting mechanism 9, by adopting the technical scheme and combining the figure 1, the figure 2 and the figure 3, the powder is fed through a structure consisting of a connecting seat 701, a connecting block 702, a connecting frame 703, a gear 704, a first motor 705, a bearing plate 706, a storage box 707 and a blanking pipe 708, the storage box 707 is clamped and connected inside the right end of the bearing plate 706, the powder is poured into the storage box 707 through the upper end of the storage box 707, when the material is required to be fed, because the bearing plate 706 is in a sliding structure on the upper side of the mounting table 6 through the connecting frame and the gear 704, the gear 703 is driven to rotate by the operation of the first motor 705, the gear 703 is meshed with the inner end of the connecting frame 703 when the gear rotates, and the connecting frame 703 drives the bearing plate 706 to slide towards the right end, until the right end of the discharging pipe 708 moves to the upper side of the second molding cavity 5;

after a control valve at the upper end of the discharging pipe 708 is opened, powder in the storage box 707 slides into the second molding cavity 5 through the obliquely arranged discharging pipe 708, after the feeding is completed, the control valve arranged on the discharging pipe 708 is closed, the powder in the storage box 707 is prevented from sliding to the outside through the discharging pipe 708, meanwhile, the gear 704 is meshed with the inner end of the connecting frame 703 when rotating, and the connecting frame 703 drives the bearing plate 706 to slide to the left end until the right ends of the storage box 707 and the discharging pipe 708 are far away from the upper side of the lower die 2;

with reference to fig. 2 and 3, when the connection frame 703 moves left and right on the upper side of the mounting table 6, the connection blocks 702 are symmetrically arranged front and back with respect to the longitudinal central axis of the connection frame 703, so that the connection blocks 702 symmetrically arranged front and back of the connection frame 703 slide left and right inside the connection seat 701, and since the cross section of the connection block 702 is a "T" -shaped structure, the shape of the connection block 702 is identical to the shape of the inside of the connection seat 701, so that the connection block 702 does not disengage from the inside of the connection seat 701 when sliding left and right, and the connection frame 703 does not skew when moving through the connection blocks 702 symmetrically arranged front and back, thereby easily increasing the structural stability during feeding;

referring to fig. 1 and 4, after the powder is added into the second molding cavity 5, the upper mold 8 is lowered to close the mold, the upper die 8 descends to carry out die assembly through a structure consisting of a connecting plate 901, a threaded rod 902, a first connecting piece 903, a transmission belt 904, a second connecting piece 905 and a second motor 906, the upper die 8 is in lifting motion on the upper side of the workbench 1 through the first connecting piece 903 and the threaded rod 902, the second motor 906 works to drive the threaded rod 902 on the front side to rotate at the upper end of the workbench 1, the threaded rod 902 drives the second connecting piece 905 to rotate when rotating, since the diameter of the inner end of the first connector 903 is smaller than the diameter of the inner end of the second connector 905, therefore, when the second connecting piece 905 rotates, the first connecting piece 903 is driven to rotate by the transmission belt 904, the first connecting piece 903 drives the threaded rod 902 at the rear side to rotate, and when the front and rear groups of threaded rods 902 rotate, the connecting plate 901 drives the upper die 8 to descend;

the position of the upper die 8 corresponds to the position of the lower die 2 one by one, so that the threaded rod 902 drives the upper die 8 to descend to the top end of the lower die 2, powder in the second molding cavity 5 is molded in the first molding cavity 4 through the core rod 3 and the lower die 2, and the longitudinal section of the first connecting piece 903 and the longitudinal section of the second connecting piece 905 are both in an I-shaped structure, so that the transmission belt 904 cannot be separated from the first connecting piece 903 and the second connecting piece 905.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder metallurgy die for a multi-step belt pulley, comprising:

the device comprises a workbench (1), wherein the upper end of the workbench (1) is fixedly connected with a lower die (2), a core rod (3) is arranged in the lower die (2), the upper left end of the lower die (2) is provided with a second molding cavity (5), and the upper right end of the lower die (2) is internally provided with a first molding cavity (4);

the mounting table (6) is integrally connected to the upper left end of the workbench (1), a feeding mechanism (7) is arranged at the upper end of the mounting table (6), and the feeding mechanism (7) comprises a connecting seat (701), a connecting block (702), a connecting frame (703), a gear (704), a first motor (705), a bearing plate (706), a storage box (707) and a blanking pipe (708);

coupling mechanism (9), coupling mechanism (9) set up the upside in workstation (1), and coupling mechanism (9) are including connecting plate (901), threaded rod (902), first connecting piece (903), drive belt (904), second connecting piece (905) and second motor (906), wherein both ends are all rotated around workstation (1) and are connected with threaded rod (902), and second motor (906) are installed in the bottom of front side threaded rod (902).

2. The powder metallurgy die for a multi-step pulley according to claim 1, wherein: the connecting seat (701) is connected to the upper end of the mounting table (6) in a front-back symmetrical integrated mode, connecting blocks (702) with T-shaped cross sections are arranged in the connecting seat (701) in a sliding mode, the inner ends of the connecting blocks (702) are connected to the front end and the rear end of the connecting frame (703) in a welded mode, and meanwhile gears (704) are meshed with the inner ends of the connecting frame (703).

3. The powder metallurgy die for a multi-step pulley according to claim 2, wherein: the lower end of the gear (704) is rotatably connected to the inner portion of the upper end of the mounting table (6), the bottom end of the gear (704) is provided with a first motor (705), and the bearing plate (706) is in a sliding structure on the upper side of the mounting table (6) through the connecting frame (703) and the gear (704);

wherein, loading board (706) fixed connection is in the upper end of connecting frame (703), and the right-hand member block of loading board (706) is connected with storage tank (707).

4. The powder metallurgy die for a multi-step pulley according to claim 3, wherein: the right lower end of the storage box (707) is connected with a discharging pipe (708) through a bolt, and the discharging pipe (708) is arranged in an inclined mode.

5. The powder metallurgy die for a multi-step pulley according to claim 1, wherein: threaded rod (902) threaded connection is in the inside at both ends around connecting plate (901), and connecting plate (901) install on last mould (8), go up the one-to-one from top to bottom in the position of mould (8) and lower mould (2) position, and first connecting piece (903) fixed connection is on the top of rear side threaded rod (902), and wherein first connecting piece (903) are connected with second connecting piece (905) transmission through drive belt (904).

6. The powder metallurgy die for a multi-step pulley according to claim 5, wherein: second connecting piece (905) integration is connected on the top of front side threaded rod (902), and the longitudinal section of second connecting piece (905) and first connecting piece (903) is "worker" style of calligraphy structure to the inner diameter of first connecting piece (903) is less than the inner diameter of second connecting piece (905), goes up mould (8) simultaneously and is elevating movement through first connecting piece (903) and threaded rod (902) at the upside of workstation (1).