CN203374561U - Safety protection system of forging system efficient overloaded operation robot - Google Patents

Abstract

The utility model relates to a safety protection system of a forging system efficient overloaded operation robot. The safety protection system is arranged between an output cavity A of a proportional reversing valve of all kinematic pairs and an output cavity B of the proportional reversing valve of all the kinematic pairs. The safety protection system comprises a first overflow valve connected with the cavity A, a first check valve connected with the first overflow valve, a second overflow valve connected with the cavity B and a second check valve connected with the second overflow valve, wherein an output cavity of the first check valve is connected with the cavity B, an output cavity of the second check valve is connected with the cavity A, and oil ways which are communicated with an oil tank are arranged between the first overflow valve and the first check valve and between the second overflow valve and the second check valve respectively. Oil can be discharged through the overflow valves when oil pressure overpressure occurs in any cavity of a buffer cylinder, most of oil in one of the cavities of the buffer cylinder flows into another cavity in the buffering process, and therefore the unloading effect and the shock absorption effect are achieved.

Description

Forging and stamping system high efficiency heavy duty Work robot safety system

Technical field

The utility model relates to a kind of forging and stamping system high efficiency heavy duty Work robot safety system.

Background technique

In heavy duty forging and stamping system, because surge pressure is larger, if exceed load, be easy to cause device damage; Therefore need in use to provide a safety system, to avoid the generation of this phenomenon.

The model utility content

The utility model is for above-mentioned defect, and purpose is to provide a kind of can realize to manipulator the forging and stamping system high efficiency heavy duty Work robot safety system of good protection.

The technical solution adopted in the utility model is for this reason: the utility model is arranged between the proportional reversing valve A, B output cavity of each kinematic pair, comprising:

The one-way valve one that the relief valve one be connected with the A chamber is connected with relief valve one; And be connected relief valve two with the B chamber, the one-way valve two be connected with relief valve two;

The output cavity of described one-way valve one connects the B chamber, and the output cavity of one-way valve two connects the A chamber;

Establishing the oil circuit that is communicated to fuel tank between described relief valve one and one-way valve one and between relief valve two and one-way valve two.

The utility model has the advantages that: when any chamber oil pressure superpressure of cushion dashpot, can pass through the relief valve oil extraction; In buffering course, the oil in cushion dashpot one chamber mostly flows into another chamber, thereby reaches off-load and effect impact-absorbing.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure, 1 is that relief valve one, 2 is that one-way valve one, 3 is that relief valve two, 4 is that one-way valve two, 5 is oil circuit.

Embodiment

The utility model is arranged between the proportional reversing valve A, B output cavity of each kinematic pair, comprising:

The one-way valve 1 that the relief valve 1 be connected with the A chamber is connected with relief valve 1; And be connected relief valve 23 with the B chamber, the one-way valve 24 be connected with relief valve 23;

The output cavity of described one-way valve 1 connects the B chamber, and the output cavity of one-way valve 24 connects the A chamber;

Establishing the oil circuit 5 that is communicated to fuel tank between described relief valve 1 and one-way valve 1 and between relief valve 23 and one-way valve 24.

When the A chamber is pressed down by forging hammer or motion inertia force while producing high pressure, oil is got back to the B chamber from relief valve 1 through one-way valves 1, and small part is got back to fuel tank by oil circuit 5, thereby reaches off-load and effect impact-absorbing.When the B chamber is pressed down by forging hammer or motion inertia force while producing high pressure, oil is got back to the A chamber from relief valve 23 through one-way valves 24, and small part is got back to fuel tank by oil circuit 5, thereby reaches off-load and effect impact-absorbing.

Claims (1)

1. forging and stamping system high efficiency heavy duty Work robot safety system, is characterized in that, is arranged between the proportional reversing valve A, B output cavity of each kinematic pair, comprising:

The one-way valve one that the relief valve one be connected with the A chamber is connected with relief valve one; And be connected relief valve two with the B chamber, the one-way valve two be connected with relief valve two;

The output cavity of described one-way valve one connects the B chamber, and the output cavity of one-way valve two connects the A chamber;

Establishing the oil circuit that is communicated to fuel tank between described relief valve one and one-way valve one and between relief valve two and one-way valve two.

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