CN204471931U - A kind of punching machine air cushion buffer gear - Google Patents
A kind of punching machine air cushion buffer gear Download PDFInfo
- Publication number
- CN204471931U CN204471931U CN201520116762.8U CN201520116762U CN204471931U CN 204471931 U CN204471931 U CN 204471931U CN 201520116762 U CN201520116762 U CN 201520116762U CN 204471931 U CN204471931 U CN 204471931U
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- CN
- China
- Prior art keywords
- air cushion
- hydraulic cylinder
- buffer gear
- punching machine
- forcing press
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Presses And Accessory Devices Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model provides a kind of punching machine air cushion buffer gear, it is characterized in that, comprises hydraulic cylinder (11) and has the charging device (12) of the side conducting of cylindrical rod (111) with hydraulic cylinder (11); The cylinder body (112) of described hydraulic cylinder (11) is fixedly mounted on the fuselage (3) of forcing press, and the cylindrical rod (111) of described hydraulic cylinder (11) is fixedly mounted on the air cushion (2) of described forcing press.Adopt after technique scheme, the beneficial effects of the utility model are as follows: speed when air cushion goes upward to upper dead center position reduces greatly, the impact that the noise produced when avoiding impact and repeat impact produce forcing press operating accuracy; It is controlled that buffer gear returns hydraulic coupling, can mate the forcing press of different operating demand.
Description
Technical field
The utility model relates to mechanical field, and the one particularly for punching machine air cushion reset buffering assists buffer gear.
Background technology
Punching machine is the lathe for carrying out pressure processing to material, makes it deform and rupture to be processed into part by applying powerful pressure to blank.Punching machine stable working, operating accuracy are high, operating condition good, productivity ratio is high, is easy to realize mechanization, automation, are suitable for working on transfer matic, are widely used in the industry such as automobile, boats and ships.
During punching machine work, connecting rod drives punch stamping cavity die, thus carries out punching press to the blank between punch-die.Above-mentioned die is arranged on the air cushion of described forcing press, and the fuselage of air cushion and forcing press can longitudinal relative movement.Carry out longitudinal control by gas piston between air cushion and fuselage, piston rod and the air cushion of described piston are fixed, and the cylinder of piston is then fixed on fuselage.Cylinder also with source of the gas conducting.
During forcing press work, descending when air cushion is subject to punching press, piston rod compressing cylinder rodless side, cylinder rodless side smaller volume.When air cushion goes downwards to predeterminated position, the pressure that in cylinder, rodless side gas produces makes the pressure between the die on air cushion and the punch on connecting rod reach nominal pressure standard, and the distance between this predeterminated position and bottom dead centre is nominal pressure stroke.After link motion to punch and die departs from, air cushion is up rapidly under the pressure of cylinder gas, recovers original position.
After existing punching machine concave-convex mold departs from, the pressure from connecting rod on air cushion suddenly disappears, and the gas pressure now in cylinder gives the acceleration very large with air cushion; When air cushion moves to top dead-centre, within very short time, 0 can be reduced to by larger speed, produce very large momentum change; Now, the additional work platform for limiting air cushion position then can be subject to great impact power.This impact can produce larger noise first, has an impact to the healthy of operator; Second, under long-term impact, the position of additional work platform has the change being enough to have influence on forcing press operating accuracy.
In view of this, special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides the punching machine air cushion buffer gear of a kind of noise reduction, guarantee forcing press operating accuracy.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be:
A kind of punching machine air cushion buffer gear, comprises hydraulic cylinder and has the charging device of side conducting of cylindrical rod with hydraulic cylinder; The cylinder body of described hydraulic cylinder is fixedly mounted on the fuselage of forcing press, and the cylindrical rod of described hydraulic cylinder is fixedly mounted on the air cushion of described forcing press.
Above-mentioned punching machine air cushion buffer gear, is provided with back liquid controllable device between described hydraulic cylinder and charging device.
Above-mentioned punching machine air cushion buffer gear, described charging device is by feed liquor oil pipe and return liquid oil pipe and described hydraulic cavities conducting; Described time liquid controllable device comprises prefill valve and overflow valve; Described prefill valve is arranged on feed liquor oil pipe; Described overflow valve is arranged on back on liquid oil pipe.
Above-mentioned punching machine air cushion buffer gear, described oil inlet pipe 13 unites two into one near one end of hydraulic cylinder 11 near one end of hydraulic cylinder 11 and oil return pipe 14.
Above-mentioned punching machine air cushion buffer gear, described air cushion is installed with pull bar, and described pull bar is through press guide pin bushing with it and fix with the cylindrical rod of described hydraulic cylinder, and the cylinder body of described hydraulic cylinder is fixedly mounted on it press.
Above-mentioned punching machine air cushion buffer gear, described hydraulic cylinder is plunger-type cylinder.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect:
1, speed when air cushion goes upward to upper dead center position reduces greatly, the impact that the noise produced when avoiding impact and repeat impact produce forcing press operating accuracy;
2, to return hydraulic coupling controlled for buffer gear, can mate the forcing press of different operating demand.
Accompanying drawing explanation
Fig. 1 is the using state figure of the utility model punching machine air cushion buffer gear.
Fig. 2 be in Fig. 1 K to schematic diagram.
Fig. 3 is the structural representation of the utility model punching machine air cushion buffer gear.
In above-mentioned accompanying drawing, 11, hydraulic cylinder; 111, cylindrical rod; 112, cylinder body; 12, charging device; 13, oil inlet pipe; 14, oil return pipe; 15, prefill valve; 16, overflow valve; 2, air cushion; 21, pull bar; 211, bolt; 212, brace; 3, fuselage; 31, guide pin bushing; 32, fixed station; 4, cylinder.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, to help understanding content of the present invention.
As shown in Figure 3, the utility model provides a kind of punching machine air cushion buffer gear, comprises hydraulic cylinder 11 and has the charging device 12 of side conducting of cylindrical rod 111 with hydraulic cylinder 11; The fuselage 3(that the cylinder body 112 of hydraulic cylinder 11 is fixedly mounted on forcing press is not shown) on, the cylindrical rod 111 of hydraulic cylinder 11 is fixedly mounted on the air cushion 2 of described forcing press.In the present embodiment, hydraulic cylinder 11 is plunger-type cylinder, and accordingly, its cylindrical rod 111 is the piston rod of plunger-type cylinder, the cylinder body of cylinder body 112 plunger-type cylinders.Mounting means and the oil-feed mode of above-mentioned hydraulic cylinder coordinate, and to the reaction during hydraulic cylinder volume contraction when oil in hydraulic cylinder can be utilized to flow out, slow down the speed that air cushion is up; Thus reach the effect alleviating impulsive force.
In above-mentioned Fig. 3, between hydraulic cylinder 11 and charging device 12, be provided with back liquid controllable device.Charging device 12 has the side conducting of cylindrical rod 111 by oil inlet pipe 13 and oil return pipe 14 with hydraulic cylinder 11; Return liquid controllable device and comprise prefill valve 15 and overflow valve 16; Prefill valve 15 is arranged on oil inlet pipe 13.Prefill valve 15 ensures the fluid one-way flow in oil inlet pipe 13 in charging device 12.Overflow valve 16 is arranged on oil return pipe 14, hydraulic pressure when controlling back liquid by the oil pressure relief of regulation relief valve 16 in hydraulic cylinder, thus the adjustment of buffering effect when realizing up for air cushion.Prefill valve 15 and overflow valve 16 are separately positioned on oil inlet pipe 13 and oil return pipe 14, can not cause and interfere with each other.Oil inlet pipe 13 and oil return pipe 14 unite two into one near one end of hydraulic cylinder 11.The fluid of oil inlet pipe 13 like this and oil return pipe 14, by an opening liquid in-out cylinder pressure 11, avoids the sealing problem of many perforates, reduces mechanism-trouble rate.
When cylindrical rod bar 111 fast downlink pushed down by the air cushion 2 of forcing press, produce negative pressure in the chamber, side that hydraulic cylinder 11 has a cylindrical rod 111, prefill valve 16 is inhaled instantaneously to be left, and hydraulic cylinder 11 has the side of cylindrical rod 111 oil-filled rapidly; When air cushion 2 rises fast, prefill valve 16 cuts out, hydraulic oil can only enter charging device 12 from overflow valve 15 overflow, regulation relief valve 15, just can control suitable oil pressure relief, thus make hydraulic cylinder 11 produce certain back pressure, slow down air cushion 2 speed uplink, it also reduce the impact dynamics of air cushion and additional work platform, serve cushioning effect.This scheme reduces noise, ensure that the operating accuracy of forcing press.
Shown in concrete mounting means Fig. 1 and Fig. 2, pull bar 21 is fixedly mounted on air cushion 2 by bolt 211, and pull bar 21 is also through the guide pin bushing 31 on press frame 3.Pull bar 21 can slide in guide pin bushing 31.Two pull bars 21 are parallel to be fixed on air cushion 2, and lower end is provided with brace 212.The cylindrical rod 111 of hydraulic cylinder 11 is fixed on brace 212.Thus, cylindrical rod 111 is fixedly connected with two pull bars 21 simultaneously, and when air cushion 2 moves, cylindrical rod 111 also can Uniform Movement thereupon, avoids the phenomenon occurring hydraulic cylinder sideslip.Fuselage 3 is provided with fixed station 32, the cylinder 4 of piston is arranged on fixed station 32 by securing member.The cylinder body 112 of hydraulic cylinder 11 is fixedly mounted on the part on fixed station 32 between two cylinders.After such installation, hydraulic cylinder 11 can its both sides cylinder of uniform balance upwarding pressure to air cushion 2, avoids air cushion 2 to cause inclination thus the inadequate problem of the forcing press operating accuracy caused because of unbalance stress.In Fig. 2, oil inlet pipe 13 and oil return pipe 14 are derived from cylinder body 112 top, are communicated on the charging device 12 that is arranged on fuselage 3.
Speed when going upward to upper dead center position by above-mentioned technical scheme air cushion reduces greatly, the impact that the noise produced when avoiding impact and repeat impact produce forcing press operating accuracy; It is controlled that buffer gear returns hydraulic coupling, can mate the forcing press of different operating demand.
The above is only the preferred embodiment of the present invention; the present inventor is before the above-mentioned concrete embodiment of research; also once carry out overtesting with tension spring and air slide according to above-mentioned embodiment; but effect is good not as such scheme; but it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a punching machine air cushion buffer gear, is characterized in that, comprises hydraulic cylinder (11) and has the charging device (12) of the side conducting of cylindrical rod (111) with hydraulic cylinder (11); The cylinder body (112) of described hydraulic cylinder (11) is fixedly mounted on the fuselage (3) of forcing press, and the cylindrical rod (111) of described hydraulic cylinder (11) is fixedly mounted on the air cushion (2) of described forcing press.
2. punching machine air cushion buffer gear according to claim 1, is characterized in that, is provided with back liquid controllable device between described hydraulic cylinder (11) and charging device (12).
3. punching machine air cushion buffer gear according to claim 2, it is characterized in that, described charging device (12) has the side conducting of cylindrical rod by oil inlet pipe (13) and oil return pipe (14) with described hydraulic cylinder (11); Described time liquid controllable device comprises prefill valve (15) and overflow valve (16); Described prefill valve (15) is arranged on oil inlet pipe (13); Described overflow valve (16) is arranged on oil return pipe (14).
4. punching machine air cushion buffer gear according to claim 3, it is characterized in that, oil inlet pipe (13) unites two into one near one end of hydraulic cylinder (11) near one end of hydraulic cylinder (11) and oil return pipe (14).
5. punching machine air cushion buffer gear according to claim 1, it is characterized in that, described air cushion (2) is installed with pull bar (21), described pull bar (21) is fixed through the guide pin bushing (31) on press frame (3) and with the cylindrical rod (111) of described hydraulic cylinder (11).
6., according to the arbitrary described punching machine air cushion buffer gear of claim 1-5, it is characterized in that, described hydraulic cylinder (11) is plunger-type cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116762.8U CN204471931U (en) | 2015-02-26 | 2015-02-26 | A kind of punching machine air cushion buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116762.8U CN204471931U (en) | 2015-02-26 | 2015-02-26 | A kind of punching machine air cushion buffer gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204471931U true CN204471931U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520116762.8U Expired - Fee Related CN204471931U (en) | 2015-02-26 | 2015-02-26 | A kind of punching machine air cushion buffer gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN204471931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339901A (en) * | 2018-02-11 | 2018-07-31 | 扬力集团股份有限公司 | A kind of sliding block backhaul air cushion delays the device and its control method of ejection |
-
2015
- 2015-02-26 CN CN201520116762.8U patent/CN204471931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339901A (en) * | 2018-02-11 | 2018-07-31 | 扬力集团股份有限公司 | A kind of sliding block backhaul air cushion delays the device and its control method of ejection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170226 |