CN107096917B - Active floating adjusting mechanism for female die of powder metallurgy press - Google Patents
Active floating adjusting mechanism for female die of powder metallurgy press Download PDFInfo
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- CN107096917B CN107096917B CN201710313551.7A CN201710313551A CN107096917B CN 107096917 B CN107096917 B CN 107096917B CN 201710313551 A CN201710313551 A CN 201710313551A CN 107096917 B CN107096917 B CN 107096917B
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- transmission shaft
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- screw rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Powder metallurgy press bed die guiding mechanism that floats includes: the active and passive drive mechanism of the same structure, the active drive mechanism includes: the mounting seat is fixed on one side inside the rack; the upper part of the connecting shaft is provided with a bevel gear, the bevel gear is meshed with another bevel gear, the other bevel gear is fixed on one side of a transmission shaft, the transmission shaft is rotatably connected to an installation seat, a chain wheel A is fixed on the other side of the transmission shaft, the lower part of the chain wheel A is connected with a chain wheel B through a chain, the chain wheel B is fixed on one side of the other transmission shaft, the other transmission shaft is rotatably fixed on another support, a chain wheel T is fixed on the other side of the other transmission shaft, and the chain wheel T is; the lower part of the connecting shaft is provided with a straight gear which is meshed with another straight gear, the other straight gear is fixed on an adjusting shaft sleeve, the adjusting shaft sleeve is rotatably connected on a support, the adjusting shaft and an adjusting screw rod form a screw rod pair, and a pressing oil cylinder is arranged above the adjusting screw rod; the motor is arranged on the mounting seat of the main transmission mechanism, and the output shaft of the motor is connected with the connecting shaft.
Description
Technical Field
The invention relates to a powder metallurgy press female die active floating adjusting mechanism.
Background
The powder metallurgy has the obvious characteristics of energy conservation, material conservation, high efficiency, less cutting or no cutting and the like, and meets the time requirements of resource conservation and sustainable development, so the powder metallurgy press is widely popularized and applied, and the powder metallurgy press is used as main equipment for forming powder metallurgy parts and is also greatly developed.
The two-way pressing by the female die floating method is an advanced pressing method at present, and the product pressed by the pressing method has uniform density and good product quality. As shown in fig. 4, which is a simplified diagram of the process state of the active floating and pressing forming of the female die, after powder loading is completed, the upper punch 24 is inserted into the female die 23, which will drive the female die to passively descend for a certain distance, and at this time, the female die is called as passive floating, as shown in fig. 4-a; then the upper punch continues to descend L1Forming, synchronous lowering of female die L2This is referred to as the negative mold actively floating, as in fig. 4-b; the female die is stopped descending and the upper punch continues to descend L3Until final formation, as shown in fig. 4-c. The female die is actively floated by mainly controlling the active floating amount of the female die, the larger the floating amount is, the larger the bidirectional pressing force of a product is, the size of the active floating amount of the female die is determined by the requirements of the manufactured product, and the product is directly influencedUpper and lower density of (2). The active floating amount of the female die is too small, the upper density and the lower density of a pressed product are different, and the upper density and the lower density of the pressed product are generally high and low; conversely, if the density is too large, the difference in the upper and lower densities of the pressed article is not uniform, and the upper density is generally low and the lower density is generally high. Therefore, the active floating amount of the female die must be properly adjusted.
The existing female die adjusting mechanism is characterized in that a motor for driving the adjusting mechanism is arranged on the outer side of a frame, so that the influence of magnetic materials and combustible materials in dust in the external environment on the motor is great, the motor can even explode in severe cases, the transmission route is long, and the transmission loss is large.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the active floating adjusting mechanism for the female die of the powder metallurgy press, which has more stable transmission and less loss.
The technical scheme adopted by the invention for solving the technical problems is as follows:
powder metallurgy press bed die guiding mechanism that floats includes:
the initiative drive mechanism and the passive drive mechanism of the same structure, initiative drive mechanism includes:
the mounting seat is fixed on one side inside the rack;
the upper part of the connecting shaft is provided with a bevel gear, the bevel gear is meshed with another bevel gear, the other bevel gear is fixed on one side of a transmission shaft, the transmission shaft is rotatably connected to an installation seat, a chain wheel A is fixed on the other side of the transmission shaft, the lower part of the chain wheel A is connected with a chain wheel B through a chain, the chain wheel B is fixed on one side of the other transmission shaft, the other transmission shaft is rotatably fixed on another support, a chain wheel T is fixed on the other side of the other transmission shaft, and the chain wheel T is connected with a chain;
the lower part of the connecting shaft is provided with a straight gear which is meshed with another straight gear, the other straight gear is fixed on an adjusting shaft sleeve, the adjusting shaft sleeve is vertically and rotatably connected on a support, the adjusting shaft and an adjusting screw rod form a screw rod pair, and a pressing oil cylinder is arranged above the adjusting screw rod;
the motor is arranged on a mounting seat of the main transmission mechanism on one side inside the frame, and an output shaft of the motor is connected with the connecting shaft through a coupler.
Preferably, a guide mechanism is arranged between the adjusting screw rod and the guide supporting seat, so that the adjusting screw rod can move more stably.
More specifically, the guide mechanism is provided with a guide groove for the upper end of the adjusting screw rod, and the guide groove is matched with a guide key on the guide supporting seat.
Preferably, the other end of the other transmission shaft is supported by the supporting seat in a rolling manner, so that the other transmission shaft rotates more stably.
Compared with the prior art, the invention has the advantages that: because guiding mechanism motor lug connection carries out the transmission on the gear shaft of a side gear, the transmission is more steady, and transmission loss is littleer, and the motor is put inside the frame moreover, can completely cut off the influence of magnetic material and combustible material in the external environment dust to the motor, improves motor life-span and security.
Drawings
FIG. 1 is a partial side view of a positive die floating adjustment mechanism of a powder metallurgy press according to an embodiment of the present invention.
FIG. 2 is a partial side view of the negative die active floating adjustment mechanism of the powder metallurgy press in another direction according to the embodiment of the invention.
Fig. 3 is a perspective view of a portion of the adjustment mechanism of fig. 1 and 2.
Fig. 4 is a schematic diagram of a conventional negative active floating press forming process.
Detailed Description
The invention is further described with reference to the following embodiments.
As shown in fig. 1, the active floating adjustment mechanism for the female die of the powder metallurgy press comprises: the active adjusting mechanism and the passive adjusting mechanism with the same structure and the motor.
The active adjusting mechanism and the passive adjusting mechanism are symmetrically arranged on two sides in the rack 1.
The driving adjusting mechanism comprises an installation seat 2, a supporting seat 3, a supporting seat 4, a transmission shaft 5, a transmission shaft 6, a bevel gear 7, a bevel gear 8, a connecting shaft 9, a straight gear 10, a straight gear 11, an adjusting shaft sleeve 12, an adjusting screw rod 13, a guiding supporting seat 14, a chain wheel 15, a chain wheel 16 and a chain wheel 17.
The mounting seat 2 is fixed inside the frame 1.
The upper end of the connecting shaft 9 is provided with a bevel gear 8, and the lower end is provided with a straight gear 10.
The transmission shaft 5 is supported by the supporting seat 3 and the mounting seat 2 in a rolling way, a chain wheel 15 is arranged on the transmission shaft 5, and a bevel gear 7 meshed with a bevel gear 8 is arranged at the end part of the transmission shaft 5.
The supporting seat 3 is fixed on the bracket 1.
The lower end of the adjusting shaft sleeve 12 is provided with a straight gear 11 meshed with the straight gear 10 and penetrates through a through hole of the mounting base 2, and the upper end of the adjusting shaft sleeve is in threaded connection with the lower end of the adjusting screw rod 13.
The adjusting screw 13 is vertically supported by a guide support seat 14, and the guide support seat 14 is fixed on the mounting seat 2.
The transmission shaft 6 is supported by the support 4 in a rolling way, chain wheels 16 and 17 are respectively arranged at two ends of the transmission shaft, the chain wheel 16 is connected with the chain wheel 15 at the upper part through a chain 19, and the chain wheel 17 is connected with the corresponding chain wheel 17 of the passive adjusting mechanism through a chain.
The motor 18 is arranged on the mounting base 2 at one side of the frame 1, and an output shaft of the motor 18 is connected with the connecting shaft 9 through a coupling (not shown).
As shown in fig. 3, the upper end of the adjusting screw 13 is provided with a guide groove 1301, which is matched with a guide key 1401 on the guide support seat 14, so that the adjusting screw 13 can be ensured to move up and down stably.
The adjustment process of the active floating adjustment mechanism of the female die of the powder metallurgy press is as follows:
the up-down position of the adjusting screw rod 13 is adjusted firstly, and the process is as follows: the motor 18 drives the connecting shaft 9 and the spur gear 10 arranged on the connecting shaft to rotate together, so that the spur gear 11 meshed with the spur gear 10 drives the adjusting shaft sleeve 12 to rotate, and the adjusting screw rod 13 and the adjusting shaft sleeve 12 are in threaded connection, so that the adjusting screw rod 13 can move up and down by the forward and reverse rotation of the adjusting shaft sleeve 12; meanwhile, the bevel gear 7 meshed with the bevel gear 8 is driven to rotate by the rotation of the bevel gear 8 arranged on the connecting shaft 9, the chain wheel 15 is driven to rotate by the transmission shaft 5, and the chain wheels 17 and 16 of the driven adjusting mechanism on the other side of the rack 1 are driven to rotate by the chain wheels 16 and 17, so that the chain wheel 15 on the other side of the rack 1 is driven to rotate, and the adjusting screw rod 13 on the other side of the rack 1 synchronously moves up and down by the transmission mechanism.
The distance L between the lower end surface of the piston rod of the pressing pressure oil cylinder 20 and the upper end surface of the adjusting screw rod 13 is changed by adjusting the up-down position of the adjusting screw rod 13. The pressing pressure oil cylinder 20 is downward, the lower end surface of a piston rod of the pressing pressure oil cylinder is contacted with the upper end surface of the adjusting screw rod 13, the adjusting screw rod 13 and the adjusting shaft sleeve 12 are driven to move downwards together, a cross arm 22 is pushed downwards through a pressing cushion block 21 connected to the lower part of the adjusting shaft sleeve 12, and a female die (not shown) connected with the cross arm 22 also descends along with the cross arm, so that the female die is actively floated.
As shown in fig. 1 and fig. 2, since the stroke of the pressing pressure cylinder 20 is unchanged, the smaller the L distance, the larger the descending distance of the female die, that is, the larger the active floating amount of the female die; the larger the L distance is, the smaller the descending distance of the female die is, namely the female die has small active floating amount. Therefore, the active floating adjustment mechanism of the female die can perform adaptive adjustment on the active floating amount of the female die according to the actual requirements of products to be produced.
Claims (4)
1. Powder metallurgy press bed die guiding mechanism that floats, its characterized in that: the method comprises the following steps:
the initiative drive mechanism and the passive drive mechanism of the same structure, initiative drive mechanism includes:
the mounting seat is fixed on one side inside the rack;
the upper part of the connecting shaft is provided with a bevel gear, the bevel gear is meshed with another bevel gear, the other bevel gear is fixed on one side of a transmission shaft, the transmission shaft is rotatably connected to an installation seat, a chain wheel A is fixed on the other side of the transmission shaft, the lower part of the chain wheel A is connected with a chain wheel B through a chain, the chain wheel B is fixed on one side of the other transmission shaft, the other transmission shaft is rotatably fixed on another support, a chain wheel T is fixed on the other side of the other transmission shaft, and the chain wheel T is connected with a chain;
the lower part of the connecting shaft is provided with a straight gear which is meshed with another straight gear, the other straight gear is fixed on an adjusting shaft sleeve, the adjusting shaft sleeve vertically and rotatably penetrates through the mounting seat, the adjusting shaft sleeve and an adjusting screw rod form a screw rod pair, and a pressing oil cylinder is arranged above the adjusting screw rod;
the motor is arranged on a mounting seat of the main transmission mechanism on one side inside the frame, and an output shaft of the motor is connected with the connecting shaft through a coupler.
2. The floating adjustment mechanism for the cavity block of a powder metallurgy press according to claim 1, wherein: and a guide mechanism is arranged between the adjusting screw rod and the guide supporting seat.
3. The floating adjustment mechanism for the cavity block of a powder metallurgy press according to claim 2, wherein: the guiding mechanism is as follows: the upper end of the adjusting screw rod is provided with a guide groove which is matched with a guide key on the guide supporting seat.
4. The floating adjustment mechanism for the cavity block of a powder metallurgy press according to claim 1, wherein: the other end of the other transmission shaft is supported by the supporting seat in a rolling way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313551.7A CN107096917B (en) | 2017-05-05 | 2017-05-05 | Active floating adjusting mechanism for female die of powder metallurgy press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313551.7A CN107096917B (en) | 2017-05-05 | 2017-05-05 | Active floating adjusting mechanism for female die of powder metallurgy press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107096917A CN107096917A (en) | 2017-08-29 |
| CN107096917B true CN107096917B (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710313551.7A Active CN107096917B (en) | 2017-05-05 | 2017-05-05 | Active floating adjusting mechanism for female die of powder metallurgy press |
Country Status (1)
| Country | Link |
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| CN (1) | CN107096917B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527926A (en) * | 2018-04-23 | 2018-09-14 | 宁波精达成形装备股份有限公司 | The former active floating adjusting apparatus of powder forming machine, the linkage of depanning adjusting apparatus and the two |
| CN114769590B (en) * | 2022-05-11 | 2022-11-22 | 淄博元绪冶金机械有限公司 | Female die floating adjusting mechanism of powder metallurgy press for processing top |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2858261Y (en) * | 2005-12-23 | 2007-01-17 | 严培义 | Bed die floating regulating mechanism of powder forming machine |
| CN201677533U (en) * | 2010-06-01 | 2010-12-22 | 宁波国兴粉末冶金设备制造有限公司 | Powder forming machine female mould floating regulating mechanism |
| CN206869123U (en) * | 2017-05-05 | 2018-01-12 | 宁波精达成形装备股份有限公司 | Powder metallurgy forcing press former active floating regulating mechanism |
-
2017
- 2017-05-05 CN CN201710313551.7A patent/CN107096917B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2858261Y (en) * | 2005-12-23 | 2007-01-17 | 严培义 | Bed die floating regulating mechanism of powder forming machine |
| CN201677533U (en) * | 2010-06-01 | 2010-12-22 | 宁波国兴粉末冶金设备制造有限公司 | Powder forming machine female mould floating regulating mechanism |
| CN206869123U (en) * | 2017-05-05 | 2018-01-12 | 宁波精达成形装备股份有限公司 | Powder metallurgy forcing press former active floating regulating mechanism |
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| CN107096917A (en) | 2017-08-29 |
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