CN206530555U - Pre- pressure booster - Google Patents

Abstract

A pre-pressure supercharger, including first, second, third and fourth connecting seats arranged up and down, an oil storage tank is arranged between the first and second connecting seats, and an inlet is provided on the first connecting seat. The pre-press air intake hole of the oil storage tank is provided with a booster cylinder between the second and third connecting seats. The booster cylinder is composed of a cylinder barrel and a piston with an open lower end inside the cylinder barrel. The oil holes are arranged in the circumferential direction, and the oil inlet holes are arranged on the cylinder barrel, and the pressurized air inlet holes leading to the upper chamber of the booster cylinder and the pre-pressurized oil passage leading to the oil storage tank are arranged on the second connecting seat , and the pre-press oil pipe is connected between the pre-press oil channel and the pre-press oil inlet hole; the working cylinder is connected between the third and fourth connection seats, and the pressure cylinder and the work cylinder are connected on the third connection seat. The working oil passage is provided with a return air hole leading into the lower cavity of the working cylinder on the fourth connecting seat. It can divide the stamping operation into two action processes of preloading and boosting, increasing the boosting output, reducing the speed of the stamping action, and the operation is safe and reliable.

Description

preload booster

technical field

The utility model relates to a supercharger, in particular to a pre-compression supercharger.

Background technique

The supercharger is the executive mechanism of the stamping machine tool. The direct pressure supercharger uses pure compressed air as the power source, and utilizes the cross-sectional ratio of the large and small pistons in the supercharger and the principle of Pascal energy conservation to increase the low pressure of the air pressure by dozens of times. Supply hydraulic working cylinders to achieve the purpose of product molding. The existing superchargers are mainly direct-pressure superchargers. This kind of direct-pressure supercharger adopts a full-range high-pressure stroke. After receiving the gas, it is directly stamped and formed. Safety.

Contents of the invention

The utility model aims to solve the above-mentioned technical problems, and provides a pre-compression supercharger, which can divide the stamping operation into two stages of pre-compression and pressurization, increase the supercharging output, reduce the speed of the stamping action, and operate safely and reliably.

The technical solution of the utility model is:

A pre-pressure supercharger, which is special in that it includes a first connecting seat, a second connecting seat, a third connecting seat and a fourth connecting seat arranged up and down, and an oil storage is arranged between the first and second connecting seats tank, the first connecting seat is provided with a pre-pressurized intake hole leading to the oil storage tank, and a booster cylinder is arranged between the second and third connecting seats, and the booster cylinder is composed of a cylinder and a cylinder The inner and lower end of the piston is open, and the oil hole is arranged in the circumferential direction of the piston, and the oil inlet hole corresponding to the oil hole of the piston is arranged on the cylinder, and the pressure booster is provided on the second connecting seat. The pressurized air intake hole in the upper chamber of the cylinder and the pre-pressed oil passage leading to the oil storage tank, and the pre-pressed oil pipe is connected between the pre-pressed oil passage and the pre-pressed oil inlet hole; the third and fourth connecting seats are connected The working cylinder with the cylinder rod downward is provided with a working oil passage connecting the pressurized cylinder and the working cylinder on the third connecting seat, and is provided with a return air hole leading into the lower chamber of the working cylinder on the fourth connecting seat.

Further preferably, bolt pull rods are connected between the first connecting seat and the fourth connecting seat to enhance overall structural stability and prevent oil leakage from the oil storage tank, booster cylinder and working cylinder.

The beneficial effects of the utility model are:

During the stamping operation, the air pressure is first introduced into the oil storage tank through the pre-press air inlet hole on the first connecting seat, and the pressure oil in the oil storage tank is passed through the pre-press oil passage, the pre-press oil pipe, the oil inlet hole, and the oil tank in turn. The oil hole, the lower chamber of the pressurized cylinder, and the working oil passage are quickly pushed into the upper chamber of the working cylinder, and the cylinder rod of the working cylinder is quickly pushed out, so that the upper die of the stamping die installed on the cylinder rod of the working cylinder quickly pushes the workpiece against the stamping die Then the air pressure is injected into the upper cavity of the booster cylinder through the booster air intake hole, the piston of the booster cylinder is compressed downward, and the oil inlet hole is closed at the same time, the pressure oil in the lower cavity of the booster cylinder is pressed to press the cylinder of the working cylinder The rod is pushed downwards, so that the upper die of the stamping die installed on the cylinder rod of the working cylinder stamps the workpiece and completes the stamping operation. The stamping operation is divided into two stages of pre-compression and pressurization. The stamping action speed is improved, and the operation is safe and reliable.

Description of drawings

Fig. 1 is a structural representation of the utility model;

In the figure: 1-the first connecting seat, 2-the second connecting seat, 3-the third connecting seat, 4-the fourth connecting seat, 5-oil storage tank, 6-pre-press air intake hole, 7-pressurized cylinder , 8-boost air intake, 9-preload oil passage, 10-preload oil pipe, 11-working cylinder, 12-working oil passage, 13-return air hole, 14-bolt tie rod, 701-cylinder, 702-piston, 703-oil through hole, 704-oil inlet hole.

detailed description

As shown in the figure, a pre-pressure booster includes a first connecting seat 1, a second connecting seat 2, a third connecting seat 3 and a fourth connecting seat 4 arranged up and down, between the first and second connecting seats An oil storage tank 5 is set, and a pre-press air intake hole 6 leading into the oil storage tank 5 is provided on the first connection seat 1, and a booster cylinder 7 is set between the second and third connection seats, and the booster cylinder 7 It is composed of a cylinder 701 and a piston 702 which is arranged in the cylinder 701 and has an open lower end. An oil passage 703 is arranged in the circumferential direction of the piston 702, and the cylinder 701 is provided with an oil passage 703 corresponding to the piston 702. The oil inlet hole 704 of the second connection seat 2 is provided with a pressurized air intake hole 8 leading to the upper chamber of the booster cylinder 7 and a pre-press oil passage 9 leading to the oil storage tank 5, and the pre-press oil passage 9 and the pre-pressing oil inlet hole 704 to connect the pre-pressing oil pipe 10; between the third and fourth connecting seats, connect the working cylinder 11 with the cylinder rod down, and the third connecting seat 3 is provided with the booster cylinder 7 and The working oil channel 12 connected to the working cylinder 11 is provided with a return vent hole 13 leading to the lower chamber of the working cylinder 11 on the fourth connecting seat 4; a bolt pull rod is connected between the first connecting seat 1 and the fourth connecting seat 4 14. Strengthen the stability of the overall structure and prevent oil leakage from the oil storage tank 5, booster cylinder 7 and working cylinder 11.

During installation, be full of pressurized oil in oil storage tank 5 and booster cylinder 7 lower cavities, stamping die patrix is installed on working cylinder 11 cylinder bar bottoms, stamping die bottom die is installed on the press workbench.

During the stamping operation, firstly, air pressure is introduced into the oil storage tank 5 through the pre-press air intake hole 6 on the first connection seat 1, and the pressure oil in the oil storage tank 5 passes through the pre-press oil passage 9 and the pre-press oil pipe 10 in turn. , oil inlet hole 704, oil passage hole 703, pressurized cylinder 7 lower cavity, working oil passage 12 enters the working cylinder 11 upper cavity, and the working cylinder 11 cylinder rod is quickly released, so that the stamping die installed on the working cylinder 11 cylinder rod The upper die quickly presses the workpiece against the lower die of the stamping die; then, the air pressure is injected into the upper chamber of the booster cylinder 7 through the booster air inlet 8, and the piston 702 of the booster cylinder 7 is compressed downward, and the oil inlet hole 704 Closed, the pressure oil in the lower chamber of the booster cylinder 7 is pressed and the cylinder rod of the working cylinder 11 is pushed out downwards, so that the upper die of the stamping die installed on the cylinder rod of the working cylinder 11 presses the workpiece into shape, and completes the stamping operation.

During the return operation, air pressure is introduced into the lower chamber of the working cylinder 11 through the return air hole 13 on the fourth connecting seat 4, and the cylinder rod of the working cylinder 11 is lifted upwards. 11 When the pressure oil in the upper chamber is pushed into the lower chamber of the booster cylinder 7 through the working oil passage 12, the piston 702 in the booster cylinder 7 is pushed to the top of the booster cylinder 7, so that the oil hole 703 on the piston 702 It communicates with the oil inlet hole 704 on the cylinder barrel 701, and then the pressure oil in the lower chamber of the booster cylinder 7 passes through the oil hole 703 on the piston 702, the oil inlet hole 704 on the cylinder barrel 701, the pre-press oil pipe 10, The pre-pressurized oil channel 9 returns to the oil storage tank 5 to complete the return operation.

The above are only specific embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (2)

1. a kind of pre- pressure booster, it is characterised in that：Including the first connecting seat of arrangement up and down, the second connecting seat, the 3rd connection Seat and the 4th connecting seat, oil storage tank is set between first and second connecting seat, is provided with the first connecting seat and is passed through the pre- of oil storage tank Stomata is pressed into, pressurized cylinder is set between second and third connecting seat, the pressurized cylinder is by cylinder barrel and is arranged in cylinder barrel and lower end Open piston is constituted, the circumferentially oil-through-hole, and provided with oil-feed corresponding with the oil-through-hole of piston on cylinder barrel on piston Hole, is provided with the second connecting seat and is passed through the super charge hole of pressurized cylinder epicoele and is passed through the precompressed oil duct of oil storage tank, and pre- Pre- pressuring oil pipe is connected between force feed road and precompressed fuel feed hole；The downward working cylinder of cylinder rod is connected between third and fourth connecting seat, 3rd connecting seat is provided with the work oil duct for connecting pressurized cylinder with working cylinder, is provided with and is passed through under working cylinder on the 4th connecting seat The return passage of chamber.

2. pre- pressure booster according to claim 1, it is characterised in that：Connect between the first connecting seat and the 4th connecting seat Connecting bolt pull bar.