CN203649108U - Punch press - Google Patents
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- CN203649108U CN203649108U CN201420005113.6U CN201420005113U CN203649108U CN 203649108 U CN203649108 U CN 203649108U CN 201420005113 U CN201420005113 U CN 201420005113U CN 203649108 U CN203649108 U CN 203649108U
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Abstract
A punch press comprises a lower die seat (7), a lower die (12), a guide column (10), an upper die seat (15) in sliding connection with the guide column (10), an upper die (17) connected with the upper die seat (15), a connecting plate (1) connected with the guide column (10), a hydraulic oil cylinder (11) connected with the connecting plate (1), a liquid supply system of the hydraulic oil cylinder (11), a PLC control system controlling the liquid supply system, one-way valves (21 and 22) communicated with an outlet of hydraulic oil pumps (24 and 25), a first direction valve (28), a second direction valve (30), a first shuttle valve (26), a second shuttle valve (27), a first reversing valve (39), a second reversing valve (40), a third reversing valve (33), a second flow control valve (29), a prefill valve (41), a third one-way valve (37), a first overflow valve (35) and a second overflow valve (36), wherein the lower die (12) and the guide column (10) are connected with the lower die seat (7), a piston rod of the hydraulic oil cylinder (11) is connected with the upper die seat (15), and the liquid supply system is provided with the hydraulic oil pumps (24 and 25).
Description
Technical field
The utility model relates to a kind of punch press; Especially relate to a kind of punch press for workpiece stamping-out.
Background technology
Machining industry at present, on part, perforate or gap generally have three kinds of forms: boring, cutting hole, punching.Boring is less compliant in the edge gap of part, and drilling diameter is subject to the restriction of process equipment; The cut quality of cutting hole is not high, and affects part material performance, and efficiency is low.Punching owing to there being material and the energy of saving than traditional machining, and efficiency is high, not high and can make these advantages of product that machining is beyond one's reach by various moulds application to operator's technical requirement, thereby its purposes is more and more extensive.Punching is generally used big machinery punch press, and equipment investment is large.
Workpiece 6 as shown in Figure 1 need, at the edge of workpiece gap, to thin plate or the low intensive material that easily rushes, can adopt punch machining process, and its work efficiency is higher.But when the thickness of steel workpieces reaches 10mm when above, especially in the time that the diameter of half round cut is larger, in the time rushing breach, guide pillar guide pin bushing need to be installed on mould, and drift installation auxiliary device fractures avoiding, though the method production efficiency is high, but mould is more complicated, punch die easily damages, and cost is higher, and practicality is industrially not strong.
On the other hand, common punch press is at stamping-out thickness when the steel workpieces more than 10mm, because blanking pressure requires larger, rushed moment at plate, act on the oil cylinder working-pressure abrupt release on workpiece, impact greatlyr, easily damage equipment, therefore hydraulic press is generally not used in the steel workpieces of stamping-out thickness more than 10mm.
Utility model content
In order to overcome the defect of prior art, the utility model provides a kind of punch press, can effectively reduce the impact that plate brought punch press in the moment that fallen by punching, protection equipment.
In order to solve the problems of the technologies described above, the utility model provides a kind of punch press, comprises die shoe; The counterdie being connected with described die shoe; First end is connected to the guide pillar on described die shoe; Coordinate with described guide pillar the upper bolster being slidably connected by guide pin bushing; The patrix being connected with described upper bolster; The connecting plate being connected with described guide pillar the second end; The hydraulic jack being connected with described connecting plate; The liquid-supplying system of hydraulic jack; The PLC control system of controlling liquid-supplying system, the piston rod of described hydraulic jack is connected with described upper bolster, and described liquid-supplying system has at least one hydraulic oil pump; Export with described hydraulic oil pump the check valve being communicated with; First direction valve; Second direction valve; The first shuttle valve; The second shuttle valve; The first reversal valve; The second reversal valve; The 3rd reversal valve; Second control valve; Prefill valve; The 3rd check valve; The first overflow valve; The second overflow valve;
The pressure hydraulic fluid port of described first direction valve and the second reversal valve is communicated with the outlet of described check valve; The oil-out of first direction valve is communicated with the pressure hydraulic fluid port of the rod chamber of described hydraulic jack and second control valve; The control port of first direction valve is communicated with the first hydraulic fluid port of the first shuttle valve, the second hydraulic fluid port of the first shuttle valve is communicated with the first oil-out of described the second reversal valve, the 3rd hydraulic fluid port of the first shuttle valve and the oil-out pipeline connection of described first direction valve, the second oil-out of the second reversal valve is communicated with the control port of prefill valve; The 3rd oil-out of the second reversal valve is communicated with oil return line;
The pressure hydraulic fluid port of described second direction valve and the first reversal valve is communicated with the outlet of described check valve; The oil-out of second direction valve is communicated with the pressure hydraulic fluid port of described the 3rd check valve; Described the 3rd oil-out of check valve and the rodless cavity of described hydraulic jack are communicated with; The control port of second direction valve is communicated with the first hydraulic fluid port of the second shuttle valve, the second hydraulic fluid port of the second shuttle valve is communicated with the first oil-out of described the first reversal valve, the 3rd hydraulic fluid port of the second shuttle valve and the oil-out pipeline connection of described second direction valve, the second oil-out of the first reversal valve is communicated with oil return line;
The outlet of described second control valve is communicated with oil return line, and the control port of second control valve is communicated with the pressure hydraulic fluid port of described the first overflow valve, the second overflow valve and the 3rd reversal valve; The oil-out of described the first overflow valve is communicated with oil return line; The oil-out of described the second overflow valve is communicated with the second pressure hydraulic fluid port of the 3rd reversal valve; The oil-out of the 3rd reversal valve is communicated with oil return line;
Described the first reversal valve, the second reversal valve, the 3rd reversal valve are solenoid electric valve, the solenoid power on/off of the first reversal valve, the second reversal valve, the 3rd reversal valve described in the control of described PLC control system.
As further improvement technical scheme, the punch press that the utility model provides, described liquid-supplying system also has the 3rd flow control valve, the 3rd overflow valve and the 4th reversal valve; The solenoid power on/off of described PLC control system control the 4th reversal valve, the pressure hydraulic fluid port of described the 3rd flow control valve is communicated with the outlet of described check valve; The outlet of described the 3rd flow control valve is communicated with oil return line; The control port of the 3rd flow control valve is communicated with the pressure hydraulic fluid port of described the 3rd overflow valve and the 4th reversal valve; The oil-out of the 3rd overflow valve and the 4th reversal valve is communicated with oil return line.
As further improvement technical scheme, the punch press that the utility model provides, described liquid-supplying system also has first flow control valve and remote pressure regulating valve, and the oil-out of second direction valve is communicated with the pressure hydraulic fluid port of described first flow control valve; The outlet of described first flow control valve is communicated with oil return line, and described remote pressure regulating valve is communicated with the control port of first flow control valve.
As further improvement technical scheme, the punch press that the utility model provides, a side of described counterdie has the back-up block that protrudes counterdie surface, and described back-up block coordinates with the drift of described patrix, stops described drift to be offset to described back-up block direction.
As further improvement technical scheme, the punch press that the utility model provides, the 3rd inductive switch moving on the piston rod that described punch press also has the second inductive switch that the piston rod reduction of speed that is connected the first inductive switch of controlling the piston rod of hydraulic jack and moving down with described punch press, controls hydraulic jack moves down, control hydraulic jack; The raised points being fixedly connected with described upper bolster or patrix, in the time that described raised points is aimed at inductive switch, makes inductive switch sense signal, and inductive switch signal is sent to described PLC control system by cable.
The piston of hydraulic jack has displacement lower limit, is the minimum downstream position of upper bolster, exceedes this position, and piston will arrive to oil cylinder bottom surface, pressurization in this case, and oil cylinder bottom end cover screw may rupture, thereby makes hydraulic jack impaired.In order to solve this technical problem; as further improvement technical scheme; the punch press that the utility model provides; described punch press also has with described punch press and is fixedly connected with, controls self-braking the 4th inductive switch of hydraulic system; described the 4th inductive switch is positioned at the below of described the 3rd inductive switch, in the time that the 3rd inductive switch loses efficacy, described punch press is protected.
The punch press providing comprises following circulation step in stamping-out process:
1) described raised points is aimed at the first inductive switch, PLC control system control YV2 energising, and the first reversal valve oil return, the second shuttle valve decompression, described second direction valve is opened, the rodless cavity oil-feed through the 3rd check valve to hydraulic jack; YV6 energising, the 3rd reversal valve oil return, second control valve is opened, rod chamber oil return, the piston rod of hydraulic jack is descending;
2) described raised points is aimed at the second inductive switch, PLC control system control YV7 energising, and the first overflow valve is communicated with, and second control valve reduces recirculating oil quantity, and rodless cavity reduces fuel-displaced speed, and piston rod reduction of speed moves down;
3) described raised points is aimed at the 3rd inductive switch, PLC control system control YV2 power-off, and YV3 energising, the pressure hydraulic fluid port of the first reversal valve is communicated with the second shuttle valve, and the second shuttle valve must be pressed, and described second direction valve cuts out; The pressure hydraulic fluid port of the second reversal valve is communicated with prefill valve, and control oil prefill valve is opened, prefill valve oil return release, the first shuttle valve decompression, first direction valve is opened; The rod chamber oil-feed of hydraulic jack, moves on piston rod.
If in step 1) process, the piston of hydraulic jack, under the effect of gravity, glides fast, in the time that the 3rd check valve is inadequate to the rodless cavity oil inlet quantity of hydraulic jack, has vacuum in rodless cavity, and now prefill valve is opened, and rodless cavity is through prefill valve topping up.
The beneficial effects of the utility model are: in stamping and blanking process; the utility model is controlled supply and the discharge of hydraulic jack hydraulic oil by PLC; adjust the flow velocity of hydraulic oil; the decrease speed of piston rod is reduced; thereby reduce the impulsive force of in stamping-out process, equipment being brought, protection punch press and punch die.In improvement project, one side of described counterdie has the back-up block that protrudes counterdie surface, back-up block coordinates with the drift of patrix, in stamping-out process, make drift be subject to a reverse support force, stop described drift to be offset to described back-up block direction, can avoid fractureing of drift, increase the service life, improve the quality of products.
Brief description of the drawings
Accompanying drawing is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of to be processed of embodiment and machining gap;
Fig. 2 is the structural representation of embodiment punch press
Fig. 3 is the upper bolster of embodiment punch press and the structural representation of patrix;
Fig. 4 is the die shoe of embodiment punch press and the structural representation of counterdie;
Fig. 5 is the schematic diagram of embodiment liquid-supplying system.
Detailed description of the invention
Punch press as shown in Figures 2 to 4, there is die shoe 7, counterdie 12 is installed on die shoe 7, the first end of two guide pillars 10 is connected on described die shoe 7, upper bolster 15 is coordinated and is slidably connected with two guide pillars 10 by guide pin bushing 16, patrix 17 is arranged on upper bolster 15, polyurethane pressure material rod 18 is also installed on upper bolster 15, described counterdie 12 also has alignment pin 14, also there is the back-up block 13 that protrudes counterdie 12 surfaces in one side, back-up block 13 coordinates with the drift of described patrix 17, in the time of the breach of punching workpiece 6 as shown in Figure 1, stop described drift to described back-up block 13 direction skews, connecting plate 1 is connected with the second end of two guide pillars 10, the cylinder body of hydraulic jack 11 is fixed on described connecting plate 1, the piston rod of described hydraulic jack 11 is connected with described upper bolster 15, the liquid-supplying system 8 of hydraulic jack 11 is communicated with rod chamber and the rodless cavity of hydraulic jack 11, liquid-supplying system is by the PLC control system control that is positioned at regulator cubicle 9.A support is installed on die shoe 7, the 3rd inductive switch 4 moving on the second inductive switch 3 that the piston rod reduction of speed of the first inductive switch 2 of controlling the piston rod of hydraulic jack 11 and moving down is housed on support, controlling hydraulic jack 11 moves down, the piston rod of controlling hydraulic jack 11; Be provided with a raised points 5 at upper bolster 15, in the time that described raised points 5 is aimed at inductive switch, make inductive switch sense signal, inductive switch signal is sent to described PLC control system by cable;
Liquid-supplying system as shown in Figure 5 has the first hydraulic oil pump 25, the second hydraulic oil pump 24, export with the first hydraulic oil pump 25 the first check valve 21 being communicated with, export with the second hydraulic oil pump 24 the second check valve 22 being communicated with, the 3rd check valve 37, first direction valve 28, second direction valve 30, the first shuttle valve 26, the second shuttle valve 27, the first reversal valve 39, the second reversal valve 40, the 3rd reversal valve 33, the 4th reversal valve (34), first flow control valve 31, second control valve 29, the 3rd flow control valve 23, prefill valve 41, the first overflow valve 35, the second overflow valve 36, the 3rd overflow valve 32, remote pressure regulating valve 38 and Pressure gauge 42.
The pressure hydraulic fluid port of described first direction valve 28 and the second reversal valve 40 is communicated with the outlet of the first check valve 21, the second check valve 22; The oil-out of first direction valve 28 is communicated with the rod chamber of described hydraulic jack 11 and the pressure hydraulic fluid port of second control valve 29; The control port of first direction valve 28 is communicated with the first hydraulic fluid port of the first shuttle valve 26, the second hydraulic fluid port of the first shuttle valve 26 is communicated with the first oil-out of described the second reversal valve 40, the 3rd hydraulic fluid port of the first shuttle valve 26 and the oil-out pipeline connection of described first direction valve 28, the second oil-out of the second reversal valve 40 is communicated with the control port of prefill valve 41; The 3rd oil-out of the second reversal valve 40 is communicated with oil return line;
The pressure hydraulic fluid port of described second direction valve 30 and the first reversal valve 39 is communicated with the outlet of the first check valve 21, the second check valve 22; The oil-out of second direction valve 30 is communicated with the pressure hydraulic fluid port of described the 3rd check valve 37; The oil-out of described the 3rd check valve 37 is communicated with the rodless cavity of described hydraulic jack 11; The control port of second direction valve 30 is communicated with the first hydraulic fluid port of the second shuttle valve 27, the second hydraulic fluid port of the second shuttle valve 27 is communicated with the first oil-out of described the first reversal valve 39, the 3rd hydraulic fluid port of the second shuttle valve 27 and the oil-out pipeline connection of described second direction valve 30, the second oil-out of the first reversal valve 39 is communicated with oil return line;
The outlet of described second control valve 29 is communicated with oil return line, and the control port of second control valve 29 is communicated with the pressure hydraulic fluid port of described the first overflow valve 35, the second overflow valve 36 and the 3rd reversal valve 33; The oil-out of described the first overflow valve 35 is communicated with oil return line; The oil-out of described the second overflow valve 36 is communicated with the second pressure hydraulic fluid port of the 3rd reversal valve 33; The oil-out of the 3rd reversal valve 33 is communicated with oil return line;
The oil-out of second direction valve 30 is communicated with the pressure hydraulic fluid port of described first flow control valve 31; The outlet of described first flow control valve 31 is communicated with oil return line, and described remote pressure regulating valve 38 is communicated with the control port of first flow control valve 31;
The pressure hydraulic fluid port of described the 3rd flow control valve 23 is communicated with the outlet of described the first check valve 21, the second check valve 22; The outlet of described the 3rd flow control valve 23 is communicated with oil return line; The control port of the 3rd flow control valve 23 is communicated with the pressure hydraulic fluid port of described the 3rd overflow valve 32 and the 4th reversal valve 34; The oil-out of the 3rd overflow valve 32 and the 4th reversal valve 34 is communicated with oil return line;
The first reversal valve 39, the second reversal valve 40, the 3rd reversal valve 33, the 4th reversal valve 34 are solenoid electric valve, the solenoid power on/off of the first reversal valve 39, the second reversal valve 40, the 3rd reversal valve 33, the 4th reversal valve 34 described in the control of described PLC control system.
Stamping-out process comprises following circulation step: described raised points 5 is aimed at the first inductive switch 2, PLC control system control YV2 energising, the first reversal valve 39 oil returns, the second shuttle valve 27 decompressions, described second direction valve 30 is opened, the rodless cavity oil-feed through the 3rd check valve 37 to hydraulic jack 11; YV6 energising, the 3rd reversal valve 33 oil returns, second control valve 29 standard-sized sheets, the quick oil return of rod chamber, the piston of hydraulic jack 11 is under the effect of gravity, glide fast, in the time that the 3rd check valve 37 is inadequate to the rodless cavity oil inlet quantity of hydraulic jack 11, in rodless cavity, there is vacuum, now prefill valve 41 is opened, rodless cavity is through prefill valve 41 topping ups, and the piston rod of hydraulic jack 11 is descending fast; Piston rod drives upper bolster 15 and patrix 17 to move down fast; When described raised points 5 is aimed at the second inductive switch 3, PLC control system control YV7 energising, the first overflow valve 35 is communicated with, and second control valve 29 reduces recirculating oil quantity, and rodless cavity reduces fuel-displaced speed, and piston rod moves down at a slow speed; When described raised points 5 is aimed at the 3rd inductive switch 4, PLC control system control YV2 power-off, YV3 energising, the pressure hydraulic fluid port of the first reversal valve 39 is communicated with the second shuttle valve 27, and the second shuttle valve 27 must be pressed, and described second direction valve 30 cuts out; The pressure hydraulic fluid port of the second reversal valve 40 is communicated with prefill valve 41, and control oil prefill valve 41 is opened, prefill valve 41 oil return releases, the first shuttle valve 26 decompressions, first direction valve 28 is opened; The rod chamber oil-feed of hydraulic jack 11, moves on piston rod.More excellent control program is that PLC control system control YV7 obtains electric, make the pressure rising of rod chamber, guarantee prefill valve 41 smooth opening, the smooth step-down of rodless cavity, when Pressure gauge 42 readings that are communicated with rodless cavity drop to close to zero time, the piston rod backhaul of hydraulic jack 11, when backhaul is aimed at the first inductive switch 2 to raised points 5, backhaul finishes, and enters next cyclic process.
PLC control system control YV1 power-off, the first hydraulic oil pump 25, the second hydraulic oil pump 24 off-loads; YV1 energising, the first hydraulic oil pump 25, the second hydraulic oil pump 24 are worked, and control the stable of the first check valve 21, the second check valve 22 outlet oil pressures.
Control input pressure and the flow of the rodless cavity of hydraulic jack 11 by regulating the pressure of remote pressure regulating valve 38.
When PLC control system control YV7 energising, piston rod moves down at a slow speed or when release, the pressure of rodless cavity is set up by the second overflow valve 36.
The piston of hydraulic jack 11 has displacement lower limit, is the minimum downstream position of upper bolster 15, exceedes this position, and piston will arrive to oil cylinder bottom surface, pressurization in this case, and oil cylinder bottom end cover bolt may rupture, thereby makes hydraulic jack impaired.For this reason, in other embodiments, also there is the 4th inductive switch being fixedly connected with described punch press at the above punch press of the basis of above-described embodiment, described the 4th inductive switch is positioned at the below of described the 3rd inductive switch 4, when the 3rd inductive switch 4 lost efficacy, when described raised points 5 is aimed at the 4th inductive switch 3, the 4th inductive switch control hydraulic system stops automatically.
Obviously, the utility model is not limited to above preferred embodiment, also can be in the spirit of the utility model claim and description restriction, carry out conversion and the improvement of various ways, can solve same technical problem, and obtain the technique effect of expection, therefore do not repeat.Those of ordinary skill in the art can be from the disclosed content of the utility model directly or all schemes of associating, as long as within the spirit limiting in claim, also belong to protection domain of the present utility model.
Claims (6)
1. a punch press, comprises die shoe (7); The counterdie (12) being connected with described die shoe (7); First end is connected to the guide pillar (10) on described die shoe; Coordinate the upper bolster (15) being slidably connected with described guide pillar (10) by guide pin bushing; The patrix (17) being connected with described upper bolster (15); The connecting plate (1) being connected with described guide pillar (10) second ends; The hydraulic jack (11) being connected with described connecting plate (1); The liquid-supplying system of hydraulic jack (11); The PLC control system of controlling liquid-supplying system, the piston rod of described hydraulic jack (11) is connected with described upper bolster (15), and described liquid-supplying system has at least one hydraulic oil pump (24,25); Export with described hydraulic oil pump (24,25) check valve (21,22) being communicated with; First direction valve (28); Second direction valve (30); The first shuttle valve (26); The second shuttle valve (27); The first reversal valve (39); The second reversal valve (40); The 3rd reversal valve (33); Second control valve (29); Prefill valve (41); The 3rd check valve (37); The first overflow valve (35); The second overflow valve (36), is characterized in that:
The pressure hydraulic fluid port of described first direction valve (28) and the second reversal valve (40) is communicated with the outlet of described check valve (21,22); The oil-out of first direction valve (28) is communicated with the rod chamber of described hydraulic jack (11) and the pressure hydraulic fluid port of second control valve (29); The control port of first direction valve (28) is communicated with the first hydraulic fluid port of the first shuttle valve (26), the second hydraulic fluid port of the first shuttle valve (26) is communicated with the first oil-out of described the second reversal valve (40), the 3rd hydraulic fluid port of the first shuttle valve (26) and the oil-out pipeline connection of described first direction valve (28), the second oil-out of the second reversal valve (40) is communicated with the control port of prefill valve (41); The 3rd oil-out of the second reversal valve (40) is communicated with oil return line;
The pressure hydraulic fluid port of described second direction valve (30) and the first reversal valve (39) is communicated with the outlet of described check valve (21,22); The oil-out of second direction valve (30) is communicated with the pressure hydraulic fluid port of described the 3rd check valve (37); The oil-out of described the 3rd check valve (37) is communicated with the rodless cavity of described hydraulic jack (11); The control port of second direction valve (30) is communicated with the first hydraulic fluid port of the second shuttle valve (27), the second hydraulic fluid port of the second shuttle valve (27) is communicated with the first oil-out of described the first reversal valve (39), the 3rd hydraulic fluid port of the second shuttle valve (27) and the oil-out pipeline connection of described second direction valve (30), the second oil-out of the first reversal valve (39) is communicated with oil return line;
The outlet of described second control valve (29) is communicated with oil return line, and the control port of second control valve (29) is communicated with the pressure hydraulic fluid port of described the first overflow valve (35), the second overflow valve (36) and the 3rd reversal valve (33); The oil-out of described the first overflow valve (35) is communicated with oil return line; The oil-out of described the second overflow valve (36) is communicated with the second pressure hydraulic fluid port of the 3rd reversal valve (33); The oil-out of the 3rd reversal valve (33) is communicated with oil return line;
Described the first reversal valve (39), the second reversal valve (40), the 3rd reversal valve (33) are solenoid electric valve, the solenoid power on/off of the first reversal valve (39), the second reversal valve (40), the 3rd reversal valve (33) described in the control of described PLC control system.
2. punch press according to claim 1, it is characterized in that: described liquid-supplying system also has the 3rd flow control valve (23), the 3rd overflow valve (32) and the 4th reversal valve (34), the solenoid power on/off of described PLC control system control the 4th reversal valve (34), the pressure hydraulic fluid port of described the 3rd flow control valve (23) is communicated with the outlet of described check valve (21,22); The outlet of described the 3rd flow control valve (23) is communicated with oil return line; The control port of the 3rd flow control valve (23) is communicated with the pressure hydraulic fluid port of described the 3rd overflow valve (32) and the 4th reversal valve (34); The oil-out of the 3rd overflow valve (32) and the 4th reversal valve (34) is communicated with oil return line.
3. punch press according to claim 1, it is characterized in that: described liquid-supplying system also has first flow control valve (31) and remote pressure regulating valve (38), the oil-out of second direction valve (30) is communicated with the pressure hydraulic fluid port of described first flow control valve (31); The outlet of described first flow control valve (31) is communicated with oil return line, and described remote pressure regulating valve (38) is communicated with the control port of first flow control valve (31).
4. punch press according to claim 1, it is characterized in that: a side of described counterdie (12) also has the back-up block (13) on protrusion counterdie (12) surface, described back-up block (13) coordinates with the drift of described patrix (17), stops described drift to be offset to described back-up block (13) direction.
5. punch press according to claim 1, is characterized in that: described punch press also has to be connected with described punch press controls first inductive switch (2) that moves down of piston rod of hydraulic jack (11), the 3rd inductive switch (4) of controlling the second inductive switch (3) that the piston rod reduction of speed of hydraulic jack (11) moves down, moving on the piston rod of controlling hydraulic jack (11); The raised points (5) being fixedly connected with described upper bolster (15) or patrix (17), in the time that described raised points is aimed at inductive switch, makes inductive switch sense signal, and inductive switch signal is sent to described PLC control system by cable.
6. punch press according to claim 1; it is characterized in that: described punch press also has with described punch press and is fixedly connected with, controls self-braking the 4th inductive switch of hydraulic system; described the 4th inductive switch is positioned at the below of described the 3rd inductive switch (4), in the time that the 3rd inductive switch (4) loses efficacy, described punch press is protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005113.6U CN203649108U (en) | 2014-01-06 | 2014-01-06 | Punch press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005113.6U CN203649108U (en) | 2014-01-06 | 2014-01-06 | Punch press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203649108U true CN203649108U (en) | 2014-06-18 |
Family
ID=50915548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420005113.6U Withdrawn - After Issue CN203649108U (en) | 2014-01-06 | 2014-01-06 | Punch press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203649108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722063A (en) * | 2014-01-06 | 2014-04-16 | 长沙仙达实业有限公司 | Punching machine and method for punching workpiece |
| CN107413928A (en) * | 2017-06-21 | 2017-12-01 | 李裕民 | A kind of pipe fitting automatic punching device |
-
2014
- 2014-01-06 CN CN201420005113.6U patent/CN203649108U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722063A (en) * | 2014-01-06 | 2014-04-16 | 长沙仙达实业有限公司 | Punching machine and method for punching workpiece |
| CN103722063B (en) * | 2014-01-06 | 2015-08-19 | 长沙仙达实业有限公司 | A kind of punch press and workpiece blanking method |
| CN107413928A (en) * | 2017-06-21 | 2017-12-01 | 李裕民 | A kind of pipe fitting automatic punching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |