CN203556773U - Fine blanking press die protecting device based on pressure control - Google Patents

Fine blanking press die protecting device based on pressure control Download PDF

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Publication number
CN203556773U
CN203556773U CN201320719366.5U CN201320719366U CN203556773U CN 203556773 U CN203556773 U CN 203556773U CN 201320719366 U CN201320719366 U CN 201320719366U CN 203556773 U CN203556773 U CN 203556773U
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CN
China
Prior art keywords
fluid port
hydraulic fluid
cylinder
control valve
rapid
Prior art date
Application number
CN201320719366.5U
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Chinese (zh)
Inventor
吴磊
陈渊
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武汉华夏精冲技术有限公司
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Priority to CN201320719366.5U priority Critical patent/CN203556773U/en
Application granted granted Critical
Publication of CN203556773U publication Critical patent/CN203556773U/en

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Abstract

The utility model discloses a fine blanking press die protecting device based on pressure control. The fine blanking press die protecting device comprises a main oil cylinder and a rapid oil cylinder, wherein the main oil cylinder comprises a main cylinder block and a main piston, the rapid oil cylinder comprises a rapid cylinder block and a rapid piston and further comprises a hydraulic control system connected with a rod cavity of the rapid oil cylinder, the hydraulic control system comprises a motor, a plunger pump, an electromagnetic directional valve, a proportional overflow valve and an oil box, the motor is connected with the plunger pump through a coupler, the plunger pump is communicated with the electromagnetic directional valve which is communicated with the rod cavity of the rapid oil cylinder, a branch line communicated with the proportional overflow valve is arranged between the plunger pump and the electromagnetic directional valve, and the proportional overflow valve is communicated with the oil box. According to the fine blanking press die, working pressure needed during rapid closing, pressure required by material deformation, and the self-weight and friction force of the oil cylinders are controlled directly, balance in the vertical direction is achieved, and a die is protected.

Description

Based on pressure controlled smart impact machine mold protecting device
Technical field
The utility model belongs to Machining Technology field, is specifically related to a kind of based on pressure controlled smart impact machine mold protecting device.
Background technology
Different from common stamping, workpiece when essence is rushed and waste material are first to stay in the middle of mould, are then blown away or take away with mechanical implement.Because fine blanking die involves great expense, thus the safe and reliable control that directly has influence on production cost of mould guaranteed, and the raising of production efficiency.The method of existing protection mould normally increases an inductive switch detecting for waste material; while still leaving not removed blanking part or waste material in the middle of sensing mould; essence impact machine can stop preventing that mould is damaged at once; but because the precision of inductive switch is lower; be difficult to fine blanking die to play the protective effect of essence, mould still can be squeezed and damage.
Utility model content
It is a kind of based on pressure controlled smart impact machine mold protecting device that the technical problems to be solved in the utility model is to provide; operating pressure, the required pressure of material generation deformation and oil cylinder deadweight and frictional force when it directly controls quick-make; reach in vertical direction balance; thereby mould is protected; and the size of direct control; make protection more rapidly, response is faster, less to mould damage.
The utility model solves the technical scheme that its technical problem adopts: based on pressure controlled smart impact machine mold protecting device, comprise master cylinder and Quick cylinder, described master cylinder comprises Master cylinder body and main piston, described Quick cylinder comprises quick cylinder body and Fast Piston, described quick cylinder body is fixedly installed on the bottom of Master cylinder body, described main piston links into an integrated entity by being connected base with Fast Piston, it is characterized in that: also comprise the hydraulic control system being connected with the rod chamber of described Quick cylinder, described hydraulic control system comprises motor, plunger displacement pump, solenoid directional control valve, proportional pressure control valve and fuel tank, described motor is connected with plunger displacement pump by shaft coupling, described plunger displacement pump and solenoid directional control valve are connected, the rod chamber of described solenoid directional control valve and Quick cylinder is connected, between described plunger displacement pump and solenoid directional control valve, be provided with branch road and connect described proportional pressure control valve, described proportional pressure control valve is connected fuel tank.
By technique scheme, described solenoid directional control valve is two-position four-way solenoid valve, comprises A hydraulic fluid port, B hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, and described A hydraulic fluid port and P hydraulic fluid port are connected all the time, and described B hydraulic fluid port and T hydraulic fluid port are connected all the time.
By technique scheme, described P hydraulic fluid port and plunger displacement pump are connected.
By technique scheme, the rod chamber of described A hydraulic fluid port and Quick cylinder is connected.
The utility model, there is following beneficial effect: by control ratio overflow valve, carry out regulating system pressure, make move upward power and resistance of workbench reach balance and make master cylinder keep static and do not continue to move upward, and make workbench this power upwards overcome friction and deadweight after remaining power lower than the power that makes material generation deformation, like this, when really there is waste material, workbench will be still in below mould protection end position (take upper limit as benchmark, expecting thick place to the next one); In lathe work SECO, only have when mould protection end position signal and connect, workbench just can enter the stamping-out stage, has so just realized the effect of protection mould.The utility model is by the size of direct control; compared with pressure sensor, protect rapider, respond faster, less to mould damage; and by taking workbench vertical direction Position Control and hydraulic system pressure control acting in conjunction, reliability and stability are higher.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment.
Wherein, 1-upper table, 2-cope match-plate pattern, 3-punch, the upper transmission rod of 4-, 5-gear ring plate, the upper force-transmitting piston of 6-, 7-billot, 8-die, 9-push pedal, the little drift of 10-, transmission rod under 11-, force-transmitting piston under 12-, 13-waste material, 14-mould protection end position, 99-lower bolster, 100-Master cylinder body, 110-main piston, the quick cylinder body of 200-, 210-Fast Piston, the rod chamber of 220-Quick cylinder, 300-connects base, 400-motor, 500-plunger displacement pump, 600-solenoid directional control valve, 700-proportional pressure control valve, 800-fuel tank, 810-backflow fuel tank, 900-shaft coupling.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1, based on pressure controlled smart impact machine mold protecting device, comprise master cylinder and Quick cylinder, master cylinder comprises Master cylinder body 100 and main piston 110, Quick cylinder comprises quick cylinder body 200 and Fast Piston 210, cylinder body 200 is fixedly installed on the bottom of Master cylinder body 100 fast, main piston 110 links into an integrated entity by being connected base 300 with Fast Piston 210, this protective device also comprises the hydraulic control system being connected with the rod chamber 220 of Quick cylinder, hydraulic control system comprises motor 400, plunger displacement pump 500, solenoid directional control valve 600, proportional pressure control valve 700 and fuel tank 800, motor 400 is connected with plunger displacement pump 500 by shaft coupling 900, plunger displacement pump 500 is connected with solenoid directional control valve 600, solenoid directional control valve 600 is connected with the rod chamber 220 of Quick cylinder, between plunger displacement pump 500 and solenoid directional control valve 600, be provided with branch road and connect proportional pressure control valve 700, proportional pressure control valve 700 is connected fuel tank 800.In the present embodiment, solenoid directional control valve 600 is two-position four-way solenoid valve, comprise A hydraulic fluid port, B hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, A hydraulic fluid port and P hydraulic fluid port are connected all the time, B hydraulic fluid port and T hydraulic fluid port are connected all the time, P hydraulic fluid port and plunger displacement pump 500 are connected, and the rod chamber 220 of A hydraulic fluid port and Quick cylinder is connected, and T hydraulic fluid port is connected backflow fuel tank 810.
The smart impact machine that the utility model is applied to comprises upper and lower two parts, the cope match-plate pattern 2 that comprises upper table 1 and be fixedly mounted on upper table 1 bottom is divided on top, cope match-plate pattern 2 the insides include punch 3, upper transmission rod 4 and gear ring plate 5 etc., gear ring plate 5 can upwards be pushed to transmission rod 4, upper transmission rod 4 contacts with upper force-transmitting piston 6, can promote force-transmitting piston 6 and move upward, upper force-transmitting piston 6 is positioned at upper table 1 inside, bottom is divided and is comprised lower bolster 99 and master cylinder, lower bolster 99 is fixedly mounted on the main piston 110 of master cylinder, lower bolster 99 the insides include die 8, push pedal 9, little drift 10 and lower transmission rod 11 etc., push pedal 9 can be pushed transmission rod 11 downwards, lower transmission rod 11 contacts with lower force-transmitting piston 12, can promote lower force-transmitting piston 12 downwards, lower force-transmitting piston 12 is positioned at main piston 110 inside, main piston 110 is arranged on Master cylinder body 100 the insides, Fast Piston 210 is arranged in quick cylinder body 200, Fast Piston 210 connects by being connected base 300 with main piston 110, cylinder body 200 is arranged on Master cylinder body 100 bottoms fast, be positioned at the both sides of main piston 110, billot 7 is close punch 3 between punch 3 and die 8.
Workflow of the present utility model is: lathe operating mode is generally split into 4 stages: upwards stage, mould are protected stage (waste material detection), workpiece stamping-out stage and return the stage fast fast; this protective device Main Function is protected the stage in mould; this stage starting point is that mould guarantor enters the stage, and end point is next stage starting point (starting stamping-out position).In Position Control, we are selected when the control point of mould when soon contacting plate, passing ratio overflow valve control mould is protected the pressure in stage, while there is no foreign matter in the middle of mould, this control point is connected, and workbench could continue motion, arrives smoothly this control point, enter the workpiece stamping-out stage, complete stamping-out process, if there is waste material 13 in the middle of mould, and this staged pressure is adjusted to setting pressure, after the given workbench of system upwards pressure and deducts workbench deadweight and oil cylinder friction, pressure in vertical direction and deficiency are so that waste material generation deformation and flattening, now workbench extrusional slug 13 and remaining static, and mould protection end position 14 distances that this resting position is set with us approximate the thickness of waste material 13 vertical aspects, in the normal work schedule of lathe, when we are set in workbench arrival mould protection end position 14, workbench switches oil circuit and enters the stamping-out stage, now, workbench cannot touch the control point that enters the stamping-out stage, and remain inactive state in the mould protection stage, thereby reach the object of protection mould.
The utility model has the advantage of: operating pressure, the required pressure of material generation deformation and oil cylinder deadweight and frictional force during by direct control quick-make, reach in vertical direction balance, thereby mould is protected; By the size of direct control, compared with pressure sensor, protect rapider, respond faster, less to mould damage; Based on original hydraulic system, make improvement, original system is not caused to other influences, without too many input, can reach the mold protecting device before being much better than; Use pressure control and Position Control acting in conjunction, reliability and stability are higher.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.

Claims (4)

1. one kind based on pressure controlled smart impact machine mold protecting device, comprise master cylinder and Quick cylinder, described master cylinder comprises Master cylinder body and main piston, described Quick cylinder comprises quick cylinder body and Fast Piston, described quick cylinder body is fixedly installed on the bottom of Master cylinder body, described main piston links into an integrated entity by being connected base with Fast Piston, it is characterized in that: also comprise the hydraulic control system being connected with the rod chamber of described Quick cylinder, described hydraulic control system comprises motor, plunger displacement pump, solenoid directional control valve, proportional pressure control valve and fuel tank, described motor is connected with plunger displacement pump by shaft coupling, described plunger displacement pump and solenoid directional control valve are connected, the rod chamber of described solenoid directional control valve and Quick cylinder is connected, between described plunger displacement pump and solenoid directional control valve, be provided with branch road and connect described proportional pressure control valve, described proportional pressure control valve is connected fuel tank.
2. according to claim 1 based on pressure controlled smart impact machine mold protecting device; it is characterized in that: described solenoid directional control valve is two-position four-way solenoid valve; comprise A hydraulic fluid port, B hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, described A hydraulic fluid port and P hydraulic fluid port are connected all the time, and described B hydraulic fluid port and T hydraulic fluid port are connected all the time.
3. according to claim 2 based on pressure controlled smart impact machine mold protecting device, it is characterized in that: described P hydraulic fluid port and plunger displacement pump are connected.
4. according to claim 2 based on pressure controlled smart impact machine mold protecting device, it is characterized in that: the rod chamber of described A hydraulic fluid port and Quick cylinder is connected.
CN201320719366.5U 2013-11-15 2013-11-15 Fine blanking press die protecting device based on pressure control CN203556773U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320719366.5U CN203556773U (en) 2013-11-15 2013-11-15 Fine blanking press die protecting device based on pressure control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320719366.5U CN203556773U (en) 2013-11-15 2013-11-15 Fine blanking press die protecting device based on pressure control

Publications (1)

Publication Number Publication Date
CN203556773U true CN203556773U (en) 2014-04-23

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CN201320719366.5U CN203556773U (en) 2013-11-15 2013-11-15 Fine blanking press die protecting device based on pressure control

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117568A (en) * 2014-06-27 2014-10-29 武汉瑞威特机械有限公司 Intelligent low-pressure fine blanking machine for die assembly
CN106003785A (en) * 2016-05-30 2016-10-12 湖州机床厂有限公司 Fine blanking hydraulic press and fine blanking hydraulic press control method
CN110883186A (en) * 2018-09-10 2020-03-17 台山市广生家居用品有限公司 Angle cutting die capable of adjusting angle cutting angle
CN110883218A (en) * 2018-09-10 2020-03-17 台山市广生家居用品有限公司 Corner cutting and punching comprehensive die

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117568A (en) * 2014-06-27 2014-10-29 武汉瑞威特机械有限公司 Intelligent low-pressure fine blanking machine for die assembly
CN106003785A (en) * 2016-05-30 2016-10-12 湖州机床厂有限公司 Fine blanking hydraulic press and fine blanking hydraulic press control method
CN110883186A (en) * 2018-09-10 2020-03-17 台山市广生家居用品有限公司 Angle cutting die capable of adjusting angle cutting angle
CN110883218A (en) * 2018-09-10 2020-03-17 台山市广生家居用品有限公司 Corner cutting and punching comprehensive die

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