CN212191228U

CN212191228U - Cam box for powder forming machine

Info

Publication number: CN212191228U
Application number: CN202020343243.6U
Authority: CN
Inventors: 何考贤
Original assignee: Boluo Heshi Die Manufacturing Co ltd
Current assignee: Boluo Heshi Die Manufacturing Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-12-22
Anticipated expiration: 2030-03-18

Abstract

The invention relates to the technical field of powder metallurgy processing parts, in particular to a cam box for a powder forming machine, which comprises a box body with a hollow mounting groove, an eccentric shaft, a cam, a gear and a pressure worm, the eccentric shaft is sleeved with a copper sleeve, the cam is fixedly arranged on the copper sleeve and movably clamped in the mounting groove through the eccentric shaft, the gear is arranged on one side of the box body, one end of the eccentric shaft extends out of the side wall of the box body and is connected with the gear, the pressurizing worm is arranged on the outer side wall of the box body and is meshed and connected with the gear, the copper bush replaces the existing bearing, so that the stress on the eccentric shaft can be uniformly acted on the whole eccentric shaft, thereby prolonging the service life of the equipment, the powder forming machine is simple in structure, reasonable in design, long in service life, capable of guaranteeing powder forming quality and reducing manufacturing cost.

Description

Cam box for powder forming machine

Technical Field

The invention relates to the technical field of powder metallurgy processing parts, in particular to a cam box for a powder forming machine.

Background

The existing powder metallurgy mostly adopts a rotary powder forming machine to carry out press forming on metal powder, the principle is that a plurality of stations are arranged on a rotary central disc, each station comprises a female die, an upper die and a lower die which are correspondingly arranged up and down and can be inserted into the female die, the upper die and the lower die are respectively connected with an upper pressing rod and a lower pressing rod, when the station is rotated to the upper cam and the lower cam, the upper pressing rod and the lower pressing rod press the upper die and the lower die into the female die under the common pressure action of the upper cam and the lower cam, so that the powder in the female die is pressed into billets under huge pressure, a bearing is generally sleeved on an eccentric shaft of an existing upper cam wheel or a lower cam box, the upper cam or the lower cam is further installed on the bearing, the design of the structure ensures that the pressure acts on a certain point which is excessively concentrated on the eccentric shaft, the eccentric wheel is easy to damage, the forming quality of the billets is influenced, and the cost is, greatly affecting the service life of the equipment.

Disclosure of Invention

In order to overcome the technical defects, the invention aims to provide the cam box for the powder forming machine, which has the advantages of simple structure, reasonable design, long service life, capability of ensuring the powder forming quality and reduction of the manufacturing cost.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the cam box for the powder forming machine comprises a box body, an eccentric shaft, a cam, a gear and a pressurizing worm, wherein the box body is hollowed inside and provided with a mounting groove, a copper sleeve is sleeved on the eccentric shaft, the cam is fixedly arranged on the copper sleeve and movably clamped in the mounting groove through the eccentric shaft, the gear is arranged on one side of the box body, one end of the eccentric shaft extends out of the side wall of the box body and is connected to the gear, and the pressurizing worm is arranged on the outer side wall of the box body and is in meshed connection with the gear.

Furthermore, the side wall of the box body is also provided with at least two supports.

Furthermore, the pressurizing worm is fixedly arranged on the outer side wall of the box body through the support, and one end of the pressurizing worm is also provided with a thread which is used for being meshed and connected with the gear.

Furthermore, through holes for installing the eccentric shafts are respectively arranged on two side walls of the box body, and end covers are respectively arranged on the through holes.

Furthermore, two ends of the eccentric shaft are movably arranged in the mounting groove through end covers respectively.

Furthermore, a cover pressing plate is arranged in the through hole of the gear, and the gear is fixedly connected to one end of the eccentric shaft through the cover pressing plate.

Furthermore, the box body consists of an upper box body and a lower box body.

In conclusion, the invention has the advantages that:

the improvement of this technique lies in changing the bearing on the eccentric shaft among the prior art into the copper sheathing, thereby make the cam when exerting pressure, the atress on the eccentric shaft can not too concentrate on its certain point, thereby make its atress too big and appear damaging, with the current bearing of copper sheathing replacement, so the atress on the eccentric shaft can be even act on whole eccentric shaft, thereby improve equipment's life, it is simple structure not only, reasonable in design, and long service life, can guarantee powder shaping's quality, and reduce manufacturing cost.

Drawings

Fig. 1 is an exploded view of the structure of the present invention;

fig. 2 is a schematic view of the assembly structure of the present invention.

1. The device comprises a box body, 101, an upper box body, 102, a lower box body, 103, through holes, 104, a mounting groove, 2, an eccentric shaft, 3, a cam, 4, a cover pressing plate, 5, a gear, 6, a pressurizing worm, 7, a thread, 8, a support, 9, an end cover, 10 and a copper sleeve.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description:

as shown in fig. 1 and 2, a cam box for powder molding machine comprises a box body 1 with a mounting groove 104 hollowed inside, an eccentric shaft 2, a cam 3, a gear 5 and a pressure worm 6, and is characterized in that: the eccentric shaft 2 is sleeved with a copper sleeve 10, the cam 3 is fixedly arranged on the copper sleeve 10 and movably clamped in the mounting groove 104 through the eccentric shaft 2, the gear 5 is arranged on one side of the box body 1, one end of the eccentric shaft 2 extends out of the side wall of the box body 1 and is connected to the gear 5, the pressurizing worm 6 is arranged on the outer side wall of the box body 1 and is in meshed connection with the gear 5, and the pressurizing worm 6 can be adjusted by the gear 5 to be arranged on the cam 3 on the eccentric shaft 2 to move upwards or towards the mounting groove 104.

Wherein, the lateral wall of the box body 1 is also provided with at least two supports 8.

The pressurizing worm 6 is fixedly arranged on the outer side wall of the box body 1 through the support 8, and one end of the pressurizing worm is also provided with a thread 7 which is used for being meshed and connected with the gear 5.

Through holes 103 for installing the eccentric shafts 2 are respectively arranged on two side walls of the box body 1, and end covers 9 are respectively arranged on the through holes 103.

Wherein, both ends of the eccentric shaft 2 are movably arranged in the mounting groove 104 through end covers 9 respectively.

And a cover pressing plate 4 is further arranged in the through hole of the gear 5, and the gear 5 is fixedly connected to one end of the eccentric shaft 2 through the cover pressing plate 4.

Wherein, the box body 1 is composed of an upper box body 101 and a lower box body 102.

Wherein, the improvement of this technique lies in changing the bearing on eccentric shaft 2 among the prior art into copper sheathing 10 to make the cam when exerting pressure, the atress on eccentric shaft 2 can not be too concentrated on its certain point, thereby makes its atress too big and appear damaging, replaces current bearing with copper sheathing 10, and the atress on eccentric shaft 2 can be even acts on whole eccentric shaft like this, thereby improves the life of equipment.

In conclusion, the powder forming machine is simple in structure, reasonable in design, long in service life, capable of guaranteeing powder forming quality and reducing manufacturing cost.

Various other changes and modifications to the above embodiments and concepts will become apparent to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a cam box for powder forming machine, includes that inside hollows out box (1) that is equipped with mounting groove (104), eccentric shaft (2), cam (3), gear (5) and pressurization worm (6), its characterized in that: the eccentric shaft (2) is sleeved with a copper sleeve (10), the cam (3) is fixedly arranged on the copper sleeve (10) and movably clamped in the mounting groove (104) through the eccentric shaft (2), the gear (5) is arranged on one side of the box body (1), one end of the eccentric shaft (2) extends out of the side wall of the box body (1) and is connected to the gear (5), and the pressurizing worm (6) is arranged on the outer side wall of the box body (1) and is meshed with the gear (5).

2. The cam box for powder molding machine according to claim 1, wherein: the side wall of the box body (1) is also provided with at least two supports (8).

3. The cam box for powder molding machine according to claim 2, wherein: the pressurizing worm (6) is fixedly arranged on the outer side wall of the box body (1) through the support (8), and one end of the pressurizing worm is also provided with a thread (7) which is used for being meshed and connected with the gear (5).

4. The cam box for powder molding machine according to claim 1, wherein: through holes (103) used for installing the eccentric shafts (2) are further respectively formed in two side walls of the box body (1), and end covers (9) are further respectively arranged on the through holes (103).

5. The cam box for powder molding machine according to claim 4, wherein: two ends of the eccentric shaft (2) are movably arranged in the mounting groove (104) through end covers (9) respectively.

6. The cam box for powder molding machine according to claim 1, wherein: a cover pressing plate (4) is further arranged in the through hole of the gear (5), and the gear (5) is fixedly connected to one end of the eccentric shaft (2) through the cover pressing plate (4).

7. The cam box for powder molding machine according to claim 1, wherein: the box body (1) is composed of an upper box body (101) and a lower box body (102).