CN211915502U

CN211915502U - A automatic forming die for powder metallurgy bush

Info

Publication number: CN211915502U
Application number: CN202020442084.5U
Authority: CN
Inventors: 李作林
Original assignee: Shaoxing Guoteng Auto Parts Co ltd
Current assignee: Shaoxing Guoteng Auto Parts Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-13
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses an automatic forming die for powder metallurgy bush, which comprises a workbench, a lower die and a pressing die, wherein the top of the inner wall of the workbench is fixed with the lower die, the upper part of the lower die is provided with the pressing die, and the automatic forming die is characterized by also comprising a central column, a threaded rod and an upper punching mechanism, the central column is fixed in the middle of the inner wall of the workbench, the central column is positioned in the middle of the inner wall of the lower die, the inner wall of the workbench is connected with the threaded rod in an equidistance way through a bearing, the top of the threaded rod is connected with the bottom of the lower die in a rotating way through a bearing, the upper punching mechanism is arranged on the threaded rod, the upper punching mechanism comprises a movable seat, a sleeve and a threaded hole, the inner wall of the workbench is provided with a movable seat, the middle of the movable seat is provided with, the bush has accurate machining size, is convenient for discharging the bush and is convenient for people to use.

Description

A automatic forming die for powder metallurgy bush

Technical Field

The utility model relates to a bush mould technical field specifically is an automatic forming die for powder metallurgy bush.

Background

The bush is the ring cover that plays the liner effect in the valve application, and the bush generally uses corrosion resistant material and metal powder material such as polytetrafluoroethylene or graphite within the valve gap for sealed effect, the bush when carrying out powder metallurgy technology shaping, needs forming die to carry out the shaping, but current forming die is when using, and the bottom jacking mostly drives through the pneumatic cylinder, and when the extrusion, the pneumatic cylinder stability of bottom is relatively poor, leads to the bush size nonstandard easily. To this end, we propose an automated forming die for powder metallurgy bushings.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic forming die for powder metallurgy bush to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic forming die for powder metallurgy bush, includes workstation, lower mould and moulding-die, workstation inner wall top is fixed with the lower mould, the lower mould top is equipped with the moulding-die, and its characterized in that still includes center post, threaded rod and upper punch mechanism, the center post is fixed at workstation inner wall middle part, and center post is located lower mould inner wall middle part, the workstation inner wall rotates through the bearing equidistance and is connected with the threaded rod, and the threaded rod top is passed through the bearing and is rotated with the lower mould bottom and be connected, upper punch mechanism installs on the threaded rod.

Preferably, the upper punch mechanism comprises a movable seat, a sleeve and a threaded hole, the inner wall of the workbench is provided with the movable seat, the middle of the movable seat is provided with a sliding hole, the sliding hole is connected with a central column in a sliding manner, the upper surface of the movable seat is fixed with the sleeve, the sleeve is connected with the central column in a sliding manner, the periphery of the movable seat is provided with threaded holes at equal intervals, and the threaded holes are respectively connected with four threaded rods in a threaded manner.

Preferably, a driving mechanism is fixed at the bottom of the workbench.

Preferably, actuating mechanism includes set casing, servo motor, driving gear and driven gear, the workstation bottom is fixed with the set casing, the set casing inner wall is fixed with servo motor, servo motor's output is fixed with the driving gear, the workstation is fixed with driven gear is passed to the threaded rod bottom, and driven gear is connected with the driving gear meshing.

Preferably, the servo motor is a speed reduction motor.

Preferably, the bottom of the inner wall of the lower die is provided with a chamfer.

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

the central column is positioned in the middle of the lower die to play a role of filling the middle of the bushing, the sleeve slides on the central column and is positioned on the inner wall of the lower die to plug and bear the bottom of the lower die, when the powder injection molding die is used, the powder enters the inner wall of the lower die, then the pressing die is driven by a hydraulic mechanism to be inserted into the inner wall of the lower die and to be extruded and molded, after molding, a servo motor rotates to drive a driving gear to rotate and further drive a driven gear to rotate, the driven gear drives a threaded rod to rotate, the threaded rod drives a movable seat to move upwards and further drive the sleeve to lift upwards, the molded bushing is driven to be ejected out of the lower die to be discharged, the movable seat is in threaded connection with the threaded rod and can bear larger pressure without deflection, so that the sleeve can keep static when the pressing die performs punching, the device has the advantages of improving the machining precision, along with better stability, accurate machining size of the bushing, convenience for discharging the bushing and convenience for people to use.

Drawings

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

fig. 2 is a schematic view of the top cross-sectional structure of the present invention.

In the figure: 1. a work table; 2. a lower die; 3. pressing the die; 4. a central column; 5. a threaded rod; 6. an uprush mechanism; 61. a movable seat; 62. a sleeve; 63. a threaded hole; 7. a drive mechanism; 71. a stationary case; 72. a servo motor; 73. a driving gear; 74. a driven gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides an automatic forming die for powder metallurgy bush, includes workstation 1, lower mould 2 and moulding-

die

3, 1 inner wall top of workstation is fixed with

lower mould

2, 2 tops of lower mould are equipped with moulding-die 3, still include: the central column 4 is fixed in the middle of the inner wall of the workbench 1, the central column 4 is positioned in the middle of the inner wall of the lower die 2, the threaded rod 5 is connected to the inner wall of the workbench 1 in an equidistant rotating mode through a bearing, and the top of the threaded rod 5 is connected with the bottom of the lower die 2 in a rotating mode through a bearing; the upper punching mechanism 6 is installed on the threaded rod 5, a chamfer is arranged at the bottom of the inner wall of the lower die 2, the upper punching mechanism 6 comprises a movable seat 61, a sleeve 62 and a threaded hole 63, the inner wall of the workbench 1 is provided with the movable seat 61, the middle part of the movable seat 61 is provided with a sliding hole which is in sliding connection with the central post 4, the upper surface of the movable seat 61 is fixed with the sleeve 62, the sleeve 62 is in sliding connection with the central post 4, the periphery of the movable seat 61 is provided with the threaded holes 63 at equal intervals, the four threaded holes 63 are respectively in threaded connection with the four threaded rods 5, the central post 4 is positioned in the middle part of the lower die 2, the middle part of a bushing is filled, the sleeve 62 slides on the central post 4 and is positioned on the inner wall of the lower die 2 to plug and bear pressure to the bottom of the lower die 2, when in use, powder, and inserted into the inner wall of the central column 4 so that the pressing die 3 performs extrusion molding on the powder in the lower die 2.

Referring to fig. 1, a driving mechanism 7 is fixed at the bottom of the workbench 1, the driving mechanism 7 includes a fixed casing 71, a servo motor 72, a driving gear 73 and a driven gear 74, the fixed casing 71 is fixed at the bottom of the workbench 1, the servo motor 72 is fixed on the inner wall of the fixed casing 71, the servo motor 72 is a speed reduction motor, the driving gear 73 is fixed at the output end of the servo motor 72, the driven gear 74 is fixed at the bottom of the threaded rod 5 passing through the workbench 1, and the driven gear 74 is engaged with the driving gear 73, after molding, the driving gear 73 is driven to rotate by the rotation of the servo motor 72, and then the driven gear 74 is driven to rotate, so that the driven gear 74 drives the threaded rod 5 to rotate, so that the threaded rod 5 drives the movable seat 61 to move upwards, and then drives the sleeve 62 to lift upwards, so as to drive the molded bushing to lift out from the lower die, and the movable seat 61 is in threaded connection with the threaded rod 5, so that the large pressure can be borne without deviation, the sleeve 62 can be kept static when the pressing die 3 performs pressing, and the processing precision is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an automatic forming die for powder metallurgy bush, includes workstation (1), lower mould (2) and moulding-die (3), workstation (1) inner wall top is fixed with lower mould (2), lower mould (2) top is equipped with moulding-die (3), its characterized in that still includes:

the central column (4) is fixed in the middle of the inner wall of the workbench (1), and the central column (4) is positioned in the middle of the inner wall of the lower die (2);

the inner wall of the workbench (1) is connected with the threaded rods (5) in an equidistant rotating mode through bearings, and the top of each threaded rod (5) is connected with the bottom of the lower die (2) in a rotating mode through the bearings;

and the upper punch mechanism (6), wherein the upper punch mechanism (6) is installed on the threaded rod (5).

2. The automated forming die for a powder metallurgy bushing of claim 1, wherein: go up punch mechanism (6) including sliding seat (61), sleeve (62) and screw hole (63), workstation (1) inner wall is equipped with sliding seat (61), the slide opening has been seted up at sliding seat (61) middle part, and slide opening and center post (4) sliding connection, fixed surface has sleeve (62) on sliding seat (61), and sleeve (62) and center post (4) sliding connection, threaded hole (63), four are seted up to sliding seat (61) equidistance all around threaded hole (63) respectively with four threaded rod (5) threaded connection.

3. The automated forming die for a powder metallurgy bushing of claim 1, wherein: and a driving mechanism (7) is fixed at the bottom of the workbench (1).

4. An automated forming die for a powder metallurgy bushing according to claim 3, wherein: actuating mechanism (7) are including set casing (71), servo motor (72), driving gear (73) and driven gear (74), workstation (1) bottom is fixed with set casing (71), set casing (71) inner wall is fixed with servo motor (72), the output of servo motor (72) is fixed with driving gear (73), threaded rod (5) bottom is passed workstation (1) and is fixed with driven gear (74), and driven gear (74) are connected with driving gear (73) meshing.

5. An automated forming die for a powder metallurgy bushing according to claim 4, wherein: the servo motor (72) is a speed reducing motor.

6. The automated forming die for a powder metallurgy bushing of claim 1, wherein: and a chamfer is arranged at the bottom of the inner wall of the lower die (2).