CN210759411U - Multichannel variable damping powder forming and pressing tool - Google Patents
Multichannel variable damping powder forming and pressing tool Download PDFInfo
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- CN210759411U CN210759411U CN201921542989.3U CN201921542989U CN210759411U CN 210759411 U CN210759411 U CN 210759411U CN 201921542989 U CN201921542989 U CN 201921542989U CN 210759411 U CN210759411 U CN 210759411U
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Abstract
The utility model discloses a multichannel variable damping powder shaping suppression frock and control method thereof belongs to powder compression moulding technical field. The multi-channel pressure balancer comprises a cylinder body, a plurality of plunger cavities are arranged in the cylinder body, each plunger cavity is filled with hydraulic oil and communicated with each other and is connected with a control port formed in the cylinder body, a plunger is arranged in each plunger cavity, the cylinder body is arranged at the lower part of the upper sliding block, and each plunger can freely stretch out and draw back in the plunger cavity and act on the pressing die under the action of pressure; the balancer is connected with the proportional throttle valve and the energy accumulator in sequence through the control port. The tool is provided with a plurality of plungers, so that one plunger can be pressed more than one plunger, and the production efficiency of powder molding is improved; the assembly precision of the press is not high, and each plunger can move freely to compensate the assembly error of the press and the installation error of a pressing die.
Description
Technical Field
The utility model relates to a powder compression moulding technical field, concretely relates to can realize fashioned multichannel variable damping powder shaping suppression frock of high quality batch of powder.
Background
Powder compaction is a special part forming method, which compacts powder into a compact with certain shape, size, density and strength by pressing force, and is mainly applied to the forming process of powder metallurgy and the forming and pressing of energetic materials. At present, a plurality of mechanical pressing heads are generally arranged on an upper sliding block of a powder forming machine so as to realize one pressing and more pressing and improve the pressing efficiency. However, the mechanical press head cannot be freely stretched and retracted, cannot compensate the verticality and parallelism errors of the press, cannot compensate the height difference of each pressing die, and causes poor consistency of blank quality during batch pressing.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned not enough of prior art, the utility model provides a multichannel variable damping powder shaping suppression frock and control method thereof.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multichannel variable damping powder forming and pressing tool comprises a multichannel pressure balancer, a proportional throttle valve and an energy accumulator, wherein the multichannel pressure balancer is arranged between an upper sliding block and a pressing die of a press, the multichannel pressure balancer comprises a cylinder body, a plurality of plunger cavities are arranged in the cylinder body, hydraulic oil is filled in the plunger cavities, the plunger cavities are communicated with one another and are connected with a control port formed in the cylinder body, plungers are arranged in the plunger cavities, the cylinder body is arranged at the lower part of the upper sliding block, and the plungers can freely stretch out and draw back in the plunger cavities under the action of pressure and act on the pressing die; the balancer is connected with the proportional throttle valve and the energy accumulator in sequence through the control port.
According to the Pascal law, the pressure in the multichannel pressure balancer is equal everywhere, and when the plunger is in a floating state, the plunger keeps a balanced state under the combined action of pressing counterforce and hydraulic pressure, so that the pressure output by each plunger is equal, and meanwhile, each plunger can extend out different lengths to compensate the perpendicularity and parallelism errors of a press and the height difference of a pressing die, and the consistency of batch pressing is ensured.
The device further comprises a force measuring sensor and a controller, wherein the force measuring sensor is positioned at the bottom of the pressing die and connected with the controller through a cable, and the controller is connected with the proportional throttle valve through a cable.
Furthermore, the cross sections of a plurality of plunger cavities arranged in the cylinder body are equal, and the action areas of the plungers are equal.
Further, set up 9 plunger chambeies in the cylinder body, 1 plunger chamber sets up in the middle part of cylinder body wherein, and remaining 8 plunger chambeies use the plunger chamber at middle part as the centre of a circle to be circular equidistant setting.
The utility model also provides a multichannel becomes damping powder shaping suppression frock control method, become damping powder shaping suppression frock including foretell multichannel, concrete step is as follows:
step 1: the controller controls the opening size of the proportional throttle valve according to the pressure difference of each plunger, changes the damping of the system, and adjusts the volume of oil entering the energy accumulator to enable all the plungers to be in a floating state so as to ensure that the forces output by the plungers are equal;
step 2: carrying out powder forming and pressing;
and step 3: after the pressing is finished, the proportional throttle valve is opened, and the oil in the energy accumulator returns to the pressure balancer under the action of the air bag pressure.
The more preferable technical scheme is as follows: in the pressing process of the step 2, the force measuring sensor detects the pressure output by each plunger of the multi-channel pressure balancer and feeds the pressure back to the controller.
Compared with the prior art, the utility model beneficial effect who has is:
1) the tool is provided with a plurality of plungers, so that one plunger can be pressed more than one plunger, and the production efficiency of powder molding is improved;
2) the assembly precision of the press is not required to be too high, and each plunger can move freely to compensate the assembly error of the press and the installation error of a pressing die, so that the consistency of batch pressing is ensured.
3) The utility model discloses a multichannel becomes damping powder shaping suppression frock can install on most presses, and the commonality is strong, is fit for using widely.
Drawings
Fig. 1 is the utility model relates to a multichannel variable damping powder shaping suppression frock's overall structure schematic diagram.
Figure 2 is a bottom view of the multichannel pressure balancer of figure 1.
Fig. 3 is a schematic view of a control method of the tool.
In the figure, 1-a press upper slide block, 2-a multichannel pressure balancer, 3-a pressing die, 4-a proportional throttle valve, 5-an energy accumulator, 6-a force transducer, 7-a controller, 11-a cylinder body, 12-a plunger cavity, 13-a plunger and 14-a control port.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention, and a multi-channel variable damping powder molding and pressing tool mainly includes a multi-channel pressure balancer 2, a proportional throttle valve 4, an energy accumulator 5, a force measuring sensor 6, and a controller 7. The multichannel pressure balancer 2 includes a plurality of plungers 13, the plungers 13 have the same area, and the multichannel pressure balancer 2 is connected to the proportional throttle valve 4 and the accumulator 5 in this order through the control port 14. In this embodiment, the pressure sensor is model NP10, the controller is model s7200, and the proportional throttle valve is model FES 16.
The volume of oil flowing into the accumulator 5 is controlled by adjusting the opening of the proportional throttle 4, so that each plunger 13 is in a suspended state. The balancer is filled with hydraulic oil, the pressure is equal everywhere, when the plunger 13 is in a floating state, the plunger 13 keeps a balanced state under the combined action of the counter force and the hydraulic pressure of the pressing die 3, so that the pressure output by each plunger 13 is ensured to be equal, and simultaneously, each plunger 13 can extend to different lengths to compensate the perpendicularity and parallelism errors of the press and the height difference of the pressing die 3, thereby ensuring the consistency of batch pressing.
In fig. 1 and 2, the multichannel pressure balancer 2 includes a cylinder 11, a plurality of plunger cavities 12 are arranged in the cylinder 11, the plunger cavities 12 are filled with hydraulic oil and are communicated with each other and are connected with a control port 14 arranged on the cylinder 11, plungers 13 are arranged in the cavities, the cylinder 11 is arranged on the lower portion of an upper slide block, and the plungers 13 extend out and act on a pressing die 3. The tool is provided with a plurality of plungers 13 to realize one-pressing-out and multiple-pressing-out.
In the present embodiment, the cross sections of the plurality of plunger cavities 12 provided in the cylinder 11 are equal, and the active areas of the plungers 13 are equal. Specifically, 9 plunger chambers 12 are arranged in the cylinder body 11, wherein 1 plunger chamber 12 is arranged in the middle of the cylinder body 11, and the rest 8 plunger chambers 12 are arranged in a circular shape at equal intervals by taking the plunger chamber 12 in the middle as a circle center.
The force measuring sensor 6 is positioned at the bottom of the pressing die 3, the force measuring sensor 6 is connected with the controller 7 through a cable, and the controller 7 is connected with the proportional throttle valve 4 through a cable.
Compared with the prior art, the utility model has the advantages that the tool is provided with a plurality of plungers 13, so that one-pressing-more-pressing-out can be realized, and the production efficiency of powder forming can be improved; the Pascal law is utilized to ensure that the output forces of the plungers 13 are equal, and the plungers 13 can move freely, so that the parallelism and perpendicularity errors of a press and the height difference of the pressing die 3 can be compensated, and the consistency of batch pressing and forming of powder is ensured.
The embodiment also provides a control method of the multichannel variable damping powder forming and pressing tool, which comprises the multichannel variable damping powder forming and pressing tool and comprises the following specific steps:
step 1: the controller 7 controls the opening size of the proportional throttle valve 4 according to the pressure difference of each plunger 13, changes the damping of the system, and adjusts the volume of oil entering the energy accumulator 5, so that all the plungers 13 are in a floating state, and the force output by each plunger 13 is equal;
step 2: carrying out powder forming and pressing;
and step 3: after the pressing is finished, the proportional throttle valve 4 is opened, and the oil in the energy accumulator 5 returns to the pressure balancer under the action of the air bag pressure.
The more preferable technical scheme is as follows: in the pressing process of the step 2, the load cell 6 detects the pressure output by each plunger 13 of the multichannel pressure balancer 2 and feeds the pressure back to the controller 7.
In fig. 3, during the pressing process, the load cell 6 detects the pressure output by each plunger 13 in the multichannel pressure balancer 2 and feeds the pressure back to the controller 7, and the controller 7 controls the opening size of the proportional throttle valve 4 according to the pressure difference of each plunger 13, changes the damping of the system, and adjusts the volume of oil entering the accumulator 5, so that each plunger 13 is in a floating state, and the force output by each plunger 13 is ensured to be the same. Carrying out powder forming and pressing; after the pressing is finished, the proportional throttle valve 4 is opened, and the oil in the energy accumulator 5 returns to the pressure balancer under the action of the air bag pressure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a multichannel becomes damping powder shaping suppression frock which characterized in that: the multi-channel pressure balancer comprises a multi-channel pressure balancer (2), a proportional throttle valve (4) and an energy accumulator (5), wherein the multi-channel pressure balancer (2) is arranged between an upper sliding block (1) and a pressing die (3) of a press, the multi-channel pressure balancer (2) comprises a cylinder body (11), a plurality of plunger cavities (12) are arranged in the cylinder body (11), each plunger cavity (12) is filled with hydraulic oil and communicated with each other and connected with a control port (14) formed in the cylinder body (11), a plunger (13) is arranged in each plunger cavity (12), the cylinder body (11) is arranged at the lower part of the upper sliding block, and each plunger (13) can freely stretch out and draw back in each plunger cavity (12) under the action of pressure and acts on the pressing die (3); the balancer is connected with the proportional throttle valve (4) and the energy accumulator (5) in sequence through a control port (14).
2. The multi-channel variable damping powder forming and pressing tool according to claim 1, characterized in that: the device is characterized by further comprising a force measuring sensor (6) and a controller (7), wherein the force measuring sensor (6) is located at the bottom of the pressing die (3), the force measuring sensor (6) is connected with the controller (7) through a cable, and the controller (7) is connected with the proportional throttle valve (4) through a cable.
3. The multi-channel variable damping powder forming and pressing tool according to claim 1, characterized in that: the cross sections of a plurality of plunger cavities (12) arranged in the cylinder body (11) are equal, and the action areas of the plungers (13) are equal.
4. The multi-channel variable damping powder forming and pressing tool according to claim 3, characterized in that: set up 9 plunger chambeies (12) in cylinder body (11), wherein 1 plunger chamber (12) set up in the middle part of cylinder body (11), and remaining 8 plunger chambers (12) use plunger chamber (12) in middle part as the centre of a circle and be the equidistant setting of circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542989.3U CN210759411U (en) | 2019-09-17 | 2019-09-17 | Multichannel variable damping powder forming and pressing tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542989.3U CN210759411U (en) | 2019-09-17 | 2019-09-17 | Multichannel variable damping powder forming and pressing tool |
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| CN210759411U true CN210759411U (en) | 2020-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481086A (en) * | 2019-09-17 | 2019-11-22 | 中国工程物理研究院化工材料研究所 | A kind of multichannel variable damping powder compacting pressing tool and its control method |
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2019
- 2019-09-17 CN CN201921542989.3U patent/CN210759411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481086A (en) * | 2019-09-17 | 2019-11-22 | 中国工程物理研究院化工材料研究所 | A kind of multichannel variable damping powder compacting pressing tool and its control method |
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