阅读说明：本技术 基于智能增压换向阀结构的预压式气液增压缸 (Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve ) 是由 胡昌乐 于 2019-08-23 设计创作，主要内容包括：本发明公开了基于智能增压换向阀结构的预压式气液增压缸,包括气液增压缸本体和换向阀本体,所述气液增压缸本体包括气缸和液压缸,所述液压缸连通有油杯,所述油杯顶部设有第一气孔,所述液压缸底部设有第二气孔和辅助气孔,所述气缸的顶部设有第三气孔,所述气缸的底部设有第四气孔；所述换向阀本体包括阀体、阀杆、先导阀盖、第一活塞和弹簧,所述阀体上设有第五气孔、第六气孔和第七气孔。本发明通过将液压缸与阀体的先导阀盖连通形成气体通路从而实现信号反馈功能,并进一步借由该反馈信号实行气路换向,大大简化的换向阀结构,降低了气液增压缸的制造成本及维修成本；同时提高了预压阶段向增压阶段转变的流畅性和稳定性。(The invention discloses the prepressing type pneumohydraulic pressure-cylinders based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and reversing valve body, the pneumohydraulic pressure-cylinder ontology includes cylinder and hydraulic cylinder, the hydraulic cylinder is communicated with lubricating cup, the first stomata is equipped at the top of the lubricating cup, the hydraulic cylinder bottom is equipped with the second stomata and auxiliary air vent, and the top of the cylinder is equipped with third stomata, and the bottom of the cylinder is equipped with the 4th stomata；The reversing valve body includes valve body, valve rod, guide's valve deck, first piston and spring, and the valve body is equipped with the 5th stomata, the 6th stomata and the 7th stomata.The present invention to form gas passage by the way that hydraulic cylinder to be connected to guide's valve deck of valve body to realize signal feedback function, and gas circuit commutation further is carried out by the feedback signal, the structure of reversing valve greatly simplified reduces the manufacturing cost and maintenance cost of pneumohydraulic pressure-cylinder；The fluency and stability that pre-pressing stage changes to pressurization stages are improved simultaneously.)

1. the prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and control gas-liquid increase The reversing valve body (40) of cylinder pressure ontology gas path on-off, the pneumohydraulic pressure-cylinder ontology include cylinder (10) and hydraulic cylinder (11), The hydraulic cylinder (11) is communicated with lubricating cup (12), which is characterized in that the first stomata (21) are equipped at the top of the lubricating cup (12), it is described Hydraulic cylinder (11) bottom is equipped with the second stomata and auxiliary air vent (23), and the top of the cylinder (10) is equipped with third stomata (31), The bottom of the cylinder (10) is equipped with the 4th stomata (32)；The reversing valve body (40) includes valve body (41), valve rod (42), elder generation Pilot valve lid (43), first piston (44) and spring (45), the interior edge of the valve body (41) is axially arranged with gas chamber open at one end, described Valve body (41) is equipped with the 5th stomata (411), the 6th stomata (412) and the 7th stomata (413) being connected to valve body (41) gas chamber, And the 5th stomata (411) and the 7th stomata (413) are located at the two sides of the 6th stomata (412), valve rod (42) sliding is set It sets in the gas chamber of valve body (41) and gas circuit is realized by the connection of sliding the 5th stomata (411) of control and the 6th stomata (412) Control, guide's valve deck (43) are sealingly mounted at the side of valve body (41) opening, guide's valve deck (43) and valve body (41) Mating surface be equipped with sliding groove (431), the spring (45) is mounted on the slot bottom of sliding groove (431), the first piston (44) it is mounted on the other end of spring (45) and is slidably fitted in sliding groove (431), guide's valve deck (43) principle sliding The side of slot (431) is equipped with the 8th stomata (432), and the 8th stomata (432) is connected to sliding groove (431)；8th gas Hole (432) is connected to auxiliary air vent (23), and the 6th stomata (412) is connected to third stomata (31), the 5th stomata (411) it is connected to the first stomata (21), the 7th stomata (413) is for gas vent and close to guide's valve deck (43).

2. the prepressing type pneumohydraulic pressure-cylinder according to claim 1 based on intelligent booster structure of reversing valve, which is characterized in that The section of the sliding groove (431) is greater than the section of valve body (41) gas chamber.

3. the prepressing type pneumohydraulic pressure-cylinder according to claim 2 based on intelligent booster structure of reversing valve, which is characterized in that The first sealing ring (441) are embedded on the side wall of the first piston (44).

4. any prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve according to claim 1~3, It is characterized in that, the valve body (41) is equipped with far from the one end of guide's valve deck (43) resets valve deck (46), the valve body (41) and multiple The connecting end surface of position valve deck (46) is equipped with the mounting groove being connected to valve body (41) gas chamber, the reset valve deck (46) and mounting groove It is fixedly connected.

5. the prepressing type pneumohydraulic pressure-cylinder according to claim 4 based on intelligent booster structure of reversing valve, which is characterized in that The valve rod (42) is equipped with the second sealing ring (421) close to the head side wall for resetting valve deck (46), and the second sealing ring (421) Between reset valve deck (46) and the 5th stomata (411).

6. the prepressing type pneumohydraulic pressure-cylinder according to claim 5 based on intelligent booster structure of reversing valve, which is characterized in that The centre of the valve rod (42) is equipped with second piston (422), and second piston (422) Xiang Fuwei valve deck (46) direction slides into The left side of range is between the 5th stomata (411) and the 6th stomata (412), and the second piston (422) is to guide Valve deck (43) direction slides into the right side of range between the 5th stomata (411) and the 7th stomata (413).

7. the prepressing type pneumohydraulic pressure-cylinder according to claim 6 based on intelligent booster structure of reversing valve, which is characterized in that The side wall of the second piston (422) is equipped with third sealing ring (423).

Technical field

The invention belongs to pressurized cylinder technical fields, in particular to the prepressing type gas-liquid based on intelligent booster structure of reversing valve increases Cylinder pressure.

Background technique

Pneumohydraulic pressure-cylinder is widely used in stamping equipment etc. and needs to be combined compared in the occasion of high thrust by cylinder and hydraulic cylinder It forms, achievees the purpose that reinforcement punching press frequently with prepressing type control plus pressurization control, and the control of prepressing type pneumohydraulic pressure-cylinder needs Reversal valve and reversal valve delay is used to be controlled, the commutation valve group of existing prepressing type pneumohydraulic pressure-cylinder needs Design assistant Control detection circuit helps to judge the performance of pre-pressing stage, and then issues the reversal valve enabling signal of pressurization stages, in this way Changing-over control structure complexity manufacturing cost it is high, boost section control delay is obvious, once and auxiliary control unit damage, maintenance fiber crops It is tired and at high cost.

Summary of the invention

The present invention the above-mentioned prior art there are aiming at the problem that, the prepressing type based on intelligent booster structure of reversing valve is provided Pneumohydraulic pressure-cylinder.

The present invention is realized by following technological means solves above-mentioned technical problem:

Prepressing type pneumohydraulic pressure-cylinder based on intelligent booster structure of reversing valve, including pneumohydraulic pressure-cylinder ontology and control gas-liquid The reversing valve body of pressurized cylinder ontology gas path on-off, the pneumohydraulic pressure-cylinder ontology include cylinder and hydraulic cylinder, the hydraulic cylinder It is communicated with lubricating cup, the first stomata is equipped at the top of the lubricating cup, the hydraulic cylinder bottom is equipped with the second stomata and auxiliary air vent, described The top of cylinder is equipped with third stomata, and the bottom of the cylinder is equipped with the 4th stomata；The reversing valve body includes valve body, valve Bar, guide's valve deck, first piston and spring, the valve body is interior along gas chamber open at one end is axially arranged with, and the valve body is equipped with The 5th stomata, the 6th stomata and the 7th stomata being connected to valve body gas chamber, and the 5th stomata and the 7th stomata are located at the 6th The two sides of stomata, the valve stem slides are arranged in the gas chamber of valve body and by the company of sliding the 5th stomata and the 6th stomata of control Logical to realize gas circuit control, guide's valve deck is sealingly mounted at the side of valve body openings, the cooperation of guide's valve deck and valve body Face is equipped with sliding groove, and the spring is mounted on the slot bottom of sliding groove, and the first piston is mounted on the other end and cunning of spring In sliding groove, the side of guide's valve deck principle sliding groove is equipped with the 8th stomata, the 8th stomata and sliding for dynamic cooperation Slot connection；8th stomata is connected to auxiliary air vent, and the 6th stomata is connected to third stomata, the 5th stomata and The connection of one stomata, the 7th stomata are gas vent and close guide's valve deck.

Further, the section of the sliding groove is greater than the section of valve body gas chamber.

Further, the first sealing ring is embedded on the side wall of the first piston.

Further, the valve body is equipped with far from one end of guide's valve deck resets valve deck, the valve body and reset valve deck Connecting end surface is equipped with the mounting groove being connected to valve body gas chamber, and the reset valve deck is fixedly connected with mounting groove.

Further, the valve rod is equipped with the second sealing ring, and the second sealing ring close to the head side wall for resetting valve deck Between reset valve deck and the 5th stomata.

Further, the centre of the valve rod is equipped with second piston, and the second piston slides into valve deck direction is resetted Between the 5th stomata and the 6th stomata, the second piston slides into most to guide's valve deck direction for the left side of range The right side of big stroke is between the 5th stomata and the 7th stomata.

Further, the side wall of the second piston is equipped with third sealing ring.

The invention has the benefit that the present invention is by the way that hydraulic cylinder to be connected to form gas passage with guide's valve deck of valve body To realize signal feedback function, and gas circuit commutation further is carried out by the feedback signal, the entire commutation control that is pressurized does not relate to And external auxiliary control circuit or gas circuit, the structure of reversing valve greatly simplified, reduce the manufacturing cost and dimension of pneumohydraulic pressure-cylinder Accomplish this；The adjusting of feedback control gas circuit, which is carried out, using pressure itself condition simultaneously improves what pre-pressing stage changed to pressurization stages Fluency and stability.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of pneumohydraulic pressure-cylinder ontology of the present invention；

Fig. 2 is the connection schematic diagram of pneumohydraulic pressure-cylinder ontology of the present invention and pressurization reversing valve body；

Fig. 3 is the structural schematic diagram of reversing valve body pre-pressing stage of the present invention；

Fig. 4 is the structural schematic diagram of reversing valve body pressurization stages of the present invention；

Fig. 5 is that the connection structure that pneumohydraulic pressure-cylinder ontology, pressurization reversing valve body and precompressed of the present invention control solenoid valve is shown It is intended to.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.