CN103691782A - Control system for pipe bending machine - Google Patents
Control system for pipe bending machine Download PDFInfo
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- CN103691782A CN103691782A CN201310722687.5A CN201310722687A CN103691782A CN 103691782 A CN103691782 A CN 103691782A CN 201310722687 A CN201310722687 A CN 201310722687A CN 103691782 A CN103691782 A CN 103691782A
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- relay
- switch
- power supply
- floor push
- bending machine
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Abstract
The invention discloses a control system for a pipe bending machine. The control system for the pipe bending machine is characterized in that one end of a forward foot switch is connected with power input; the other of the forward foot switch is connected with a power supply end of a first relay after being in series connection with a normally close switch of a second relay; a first oil supply magnetic valve is connected between two power supply ends of the first relay; a normally open switch of the first relay is in parallel connection with the forward foot switch; one end of a backward foot switch is connected with the power input through an in-situ proximity switch; the other end of the backward foot switch is connected with a power supply end of the second relay; a normally open switch of the second relay and an end position proximity switch are in parallel connection with the backward foot switch; a second oil supply magnetic valve is connected between the two power ends of the second relay. The control system for the pipe bending machine has the advantages of being accurate in angle of machined bending pipes, simple in structure, easy to operate and low in cost, enabling machining angles to be adjusted according to requirement in real time and being convenient to adjust and maintain compared with a full-automatic numerically-controlled machine tool.
Description
Technical field
The invention belongs to bending machine technical field, especially relate to a kind of bending machine control system.
Background technology
In field of machining, usually relate to bent tube technique, as shown in Figure 1, most bending machine all workbench is set to vertical gathering sill and laterally steering groove " ten " character form structure that intersects, utilize hydraulic cylinder or pneumatic cylinder to drive the running roller on guide pad to move, thereby steel pipe is pulled into U-shaped structure.
But existing CNC tube bending machine is controlled by computer program mostly, complicated operation, O&M cost is also higher, and the pipe of Large Diameter Pipeline can not one-shot forming, and the pipe of different tube diameters is wanted the mould of different size, and replacing program bothers very much.
Summary of the invention
In order to solve above technical problem, the invention provides a kind of bending machine control system of semi-automation, can reduce O&M cost according to different bent pipe ruler little progress row manual adjustment, be convenient to one-shot forming.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of bending machine control system, comprise for the oil pump to bending machine oil cylinder fuel feeding (M), the the first confession solenoid (KY1) stretching out for cylinder piston rod and the second confession solenoid (KY2) retreating for cylinder piston rod, its key is: described oil pump (M) is connected on three phase mains supply lines by miniature fuse (QF), on any phase power supply line of oil pump (M), be connected with the floor push that advances (SB1), retreat floor push (SB2), the first relay (KA1), the second relay (KA2), original position approach switch (SQ2) and final position approach switch (SQ1), wherein:
Closed under described original position approach switch (SQ2) normality, during triggering, disconnect;
Under described final position approach switch (SQ1) normality, disconnect, closed during triggering;
One end of the described floor push that advances (SB1) connects power supply input, the normally closed switch (KA2-1) that the other end is connected in series the second relay (KA2) is connected with a power end of the first relay (KA1) afterwards, another power supply termination power cathode of this first relay (KA1), between two power ends of the first relay (KA1), connect described first for solenoid (KY1), on the described floor push that advances (SB1), be also parallel with the normal open switch (KA1-1) of the first relay (KA1);
Described floor push (SB2) one end that retreats connects power supply input through described original position approach switch (SQ2), the other end is connected with a power end of the second relay (KA2), another power supply termination power cathode of this second relay (KA2), described in the normal open switch (KA2-2) of described the second relay (KA2) is all connected in parallel on described final position approach switch (SQ1), retreat floor push (SB2) upper, between two power ends of the second relay (KA2), connect described second for solenoid (KY2).
In order to realize emergent control, on the power supply line of the described floor push that advances (SB1) and original position approach switch (SQ2), scram button (SB) is also installed.
For power supply safety, on the power supply line of the described floor push that advances (SB1) and original position approach switch (SQ2), be also provided with fuse (FU).
Remarkable result of the present invention is: adopt above technical scheme to control bending machine, processing bend pipe angle is accurate, simple in structure easy to operate, cost is low, can regulate in real time as required machining angle, for full-automatic Digit Control Machine Tool, adjust and safeguard very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of bending machine;
Fig. 2 is circuit theory diagrams of the present invention.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As shown in Figure 2, a kind of bending machine control system, comprise for the oil pump M to bending machine oil cylinder fuel feeding, the the first confession solenoid KY1 stretching out for cylinder piston rod and the second confession solenoid KY2 retreating for cylinder piston rod, described oil pump M is connected on three phase mains supply lines by miniature fuse QF, on any phase power supply line of oil pump M, be connected with the floor push SB1 that advances, retreat floor push SB2, the first relay K A1, the second relay K A2, original position approach switch SQ2 and final position approach switch SQ1, wherein:
Closed under described original position approach switch SQ2 normality, during triggering, disconnect;
Under described final position approach switch SQ1 normality, disconnect, closed during triggering;
One end of the described floor push SB1 that advances connects power supply input, the other end is connected with a power end of the first relay K A1 after being connected in series the normally closed switch KA2-1 of the second relay K A2, another power supply termination power cathode of this first relay K A1, between two power ends of the first relay K A1, connect described first for solenoid KY1, on the described floor push SB1 that advances, be also parallel with the normal open switch KA1-1 of the first relay K A1;
The described floor push SB2 one end that retreats connects power supply input through described original position approach switch SQ2, the other end is connected with a power end of the second relay K A2, another power supply termination power cathode of this second relay K A2, described in the normal open switch KA2-2 of described the second relay K A2 and described final position approach switch SQ1 are all connected in parallel on, retreat floor push SB2 upper, between two power ends of the second relay K A2, connect described second for solenoid KY2.
In conjunction with Fig. 2, can find out, on the power supply line of described advance floor push SB1 and original position approach switch SQ2, scram button SB and fuse FU are also installed.
Operation principle of the present invention is:
In conjunction with the bending machine structure shown in Fig. 1, when miniature fuse QF closes, power connection, oil pump M entry into service, now first for solenoid KY1 and second, for solenoid KY2, all do not switch on, the fluid in oil circuit flows back to fuel tank by pipeline, and piston rod does not move;
When floor push SB1 is advanced in startup, the first relay K A1 energising, the normal open switch KA1-1 of the first relay K A1 is closed, now first for solenoid KY1, must conduct, and oil pump M send oil to oil cylinder tail end, impels piston rod to release;
When piston rod moves to certain position, trigger final position approach switch SQ1 closed, now the second relay K A2 energising, the normally closed switch KA2-1 of the second relay K A2 disconnects, the normal open switch KA2-2 of the second relay K A2 is closed, and first for solenoid KY1 power-off, and second for solenoid KY2 energising, oil pump M send oil to oil cylinder head end, impels piston rod to shrink return;
When piston rod is got back to original position, trigger original position approach switch SQ2 and disconnect, the second relay K A2 and second is for the equal power-off of solenoid KY2, oil cylinder stop motion;
At oil cylinder, advance in process, also can retreat floor push SB2 Artificial Control oil cylinder by startup and shrink;
If generation emergency situations, also can realize emergency power off by starting scram button SB, the fuse FU in circuit can also realize circuit protection, prevents excessive other potential safety hazards that causes of electric current;
In implementation process, can also change by adjusting the position of original position approach switch SQ2 and final position approach switch SQ1 the angle of bend of converted products.
Finally it should be noted that; although below by reference to the accompanying drawings the preferred embodiments of the present invention are described; but the invention is not restricted to the above-mentioned specific embodiment; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite without prejudice to aim of the present invention and claim, can make like multiple types and representing, as: hydraulic control system is replaced with to pneumatic control system; floor push is replaced with to hand switch etc., within such conversion all falls into protection domain of the present invention.
Claims (3)
1. a bending machine control system, comprise for the oil pump to bending machine oil cylinder fuel feeding (M), the the first confession solenoid (KY1) stretching out for cylinder piston rod and the second confession solenoid (KY2) retreating for cylinder piston rod, it is characterized in that: described oil pump (M) is connected on three phase mains supply lines by miniature fuse (QF), on any phase power supply line of oil pump (M), be connected with the floor push that advances (SB1), retreat floor push (SB2), the first relay (KA1), the second relay (KA2), original position approach switch (SQ2) and final position approach switch (SQ1), wherein:
Closed under described original position approach switch (SQ2) normality, during triggering, disconnect;
Under described final position approach switch (SQ1) normality, disconnect, closed during triggering;
One end of the described floor push that advances (SB1) connects power supply input, the normally closed switch (KA2-1) that the other end is connected in series the second relay (KA2) is connected with a power end of the first relay (KA1) afterwards, another power supply termination power cathode of this first relay (KA1), between two power ends of the first relay (KA1), connect described first for solenoid (KY1), on the described floor push that advances (SB1), be also parallel with the normal open switch (KA1-1) of the first relay (KA1);
Described floor push (SB2) one end that retreats connects power supply input through described original position approach switch (SQ2), the other end is connected with a power end of the second relay (KA2), another power supply termination power cathode of this second relay (KA2), described in the normal open switch (KA2-2) of described the second relay (KA2) is all connected in parallel on described final position approach switch (SQ1), retreat floor push (SB2) upper, between two power ends of the second relay (KA2), connect described second for solenoid (KY2).
2. bending machine control system according to claim 1, is characterized in that: on the power supply line of the described floor push that advances (SB1) and original position approach switch (SQ2), scram button (SB) is also installed.
3. bending machine control system according to claim 1 and 2, is characterized in that: on the power supply line of the described floor push that advances (SB1) and original position approach switch (SQ2), be also provided with fuse (FU).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722687.5A CN103691782A (en) | 2013-12-24 | 2013-12-24 | Control system for pipe bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722687.5A CN103691782A (en) | 2013-12-24 | 2013-12-24 | Control system for pipe bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103691782A true CN103691782A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310722687.5A Pending CN103691782A (en) | 2013-12-24 | 2013-12-24 | Control system for pipe bending machine |
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| Country | Link |
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| CN (1) | CN103691782A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138940A (en) * | 2014-07-28 | 2014-11-12 | 河北昊昱机电设备研究所有限公司 | Bending inclination preventing device of bending machine |
| CN108356113A (en) * | 2018-01-23 | 2018-08-03 | 襄阳科威电气有限公司 | A kind of steel pipe bender servo-control system |
-
2013
- 2013-12-24 CN CN201310722687.5A patent/CN103691782A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138940A (en) * | 2014-07-28 | 2014-11-12 | 河北昊昱机电设备研究所有限公司 | Bending inclination preventing device of bending machine |
| CN104138940B (en) * | 2014-07-28 | 2016-02-17 | 河北昊昱机电设备研究所有限公司 | The anti-folding ramp of bender |
| CN108356113A (en) * | 2018-01-23 | 2018-08-03 | 襄阳科威电气有限公司 | A kind of steel pipe bender servo-control system |
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Application publication date: 20140402 |