CN115722562A - Gas-liquid pressurization driving clamping mechanism and rapid mold clamping system comprising same - Google Patents

Abstract

The invention discloses a gas-liquid pressurization driving clamping mechanism and a rapid clamping system of a die comprising the same, wherein the gas-liquid pressurization driving clamping mechanism comprises a fixed frame, an oil hole switch, a plurality of clamping teeth arranged along the length direction of the fixed frame and first resetting pieces which are arranged in one-to-one correspondence with the clamping teeth; the fixing frame is provided with a clamping tooth oil cavity and a piston cavity, the clamping tooth oil cavity and the first reset piece are respectively positioned at two ends of the clamping tooth along the moving direction of the clamping tooth, the piston cavity comprises a liquid storage cavity and a first air inlet cavity which are not communicated with each other and have variable volumes, and the first air inlet cavity is connected with an external air source; when the oil hole switch is opened, the liquid storage cavity is communicated with the clamping tooth oil cavity; when the oil hole switch is closed, the liquid storage cavity is disconnected with the clamping tooth oil cavity; the reservoir is adapted to close when the clamping tooth is in the clamped condition. The invention skillfully integrates and utilizes the advantages of pneumatic and hydraulic pressure, thereby realizing the mould clamping function of large clamping force by using common industrial compressed air, canceling a hydraulic pump station and avoiding the oil leakage risk of a long-distance hydraulic pipeline.

Description

Gas-liquid pressurization driving clamping mechanism and rapid mold clamping system comprising same

Technical Field

The invention relates to the technical field of bending machines, in particular to a gas-liquid pressurization driving clamping mechanism and a rapid die clamping system comprising the same.

Background

In a traditional bending machine, when dies of the bending machine are mounted on the quick clamps, the dies cannot be vertically mounted, operation of workers is inconvenient, and after the dies are loaded, each quick clamp needs to be manually clamped (the number of the quick clamps is about 16-20 under the general condition of a 3-meter bending machine); the quick clamp is loosened manually again when the mould is unloaded, then the mould is pulled down when breaking off with the fingers and thumb the mould and just can unload the mould, every time carries out the retooling and just needs the above-mentioned loading and uninstallation process of repetition, both extravagant manual work, reduction in production efficiency also can not realize the automatic tool changing of the processing of bending.

The prior art also has the scheme that the hydraulic mode is adopted to clamp and loosen the quick clamp, but a hydraulic pump station needs to be arranged, the arrangement of a hydraulic pipeline in the bending machine is also complex, the use cost of the machine is high, and the risk of oil leakage can also exist.

Disclosure of Invention

The invention provides a gas-liquid pressurization driving clamping mechanism and a rapid die clamping system comprising the same, and aims to solve the technical problems that manual work is wasted, the efficiency is low, the structure is complex when a hydraulic mode is adopted for loosening and tightening a quick clamp, and the use cost of a machine is high in a bending machine in the prior art.

The invention provides a gas-liquid pressurization driving clamping mechanism which comprises a fixed frame, an oil hole switch, a plurality of clamping teeth and first resetting pieces, wherein the clamping teeth are arranged along the length direction of the fixed frame, and the first resetting pieces are arranged in one-to-one correspondence with the clamping teeth; the fixing frame is provided with a clamping tooth oil cavity and a piston cavity, the clamping tooth oil cavity and the first reset piece are respectively positioned at two ends of the clamping tooth along the moving direction of the clamping tooth, the piston cavity comprises a liquid storage cavity and a first air inlet cavity which are not communicated with each other and have variable volumes, and the first air inlet cavity is connected with an external air source; when the oil hole switch is opened, the liquid storage cavity is communicated with the clamping tooth oil cavity; when the oil hole switch is closed, the liquid storage cavity is disconnected with the clamping tooth oil cavity; the reservoir is adapted to close when the clamping tooth is in the clamped condition.

Furthermore, the oil hole switch comprises a pressurizing piston and a pressurizing cavity, the pressurizing piston is positioned in the fixing frame and reciprocates, one end of the pressurizing cavity is provided with an opening, the pressurizing piston is divided into a second air inlet cavity which is not communicated with the opening end of the pressurizing cavity in the pressurizing cavity, and the second air inlet cavity is connected with an external air source; the opening end of the pressurizing cavity is communicated with the liquid storage cavity and the clamping tooth oil cavity, and when the pressurizing piston moves towards the opening end of the pressurizing cavity, the oil hole switch is closed.

Furthermore, a second reset piece is arranged at one end, back to the second air inlet cavity, of the pressurization piston, so that the pressurization piston moves towards the second air inlet cavity in a reset state.

Further, a liquid blowing piston is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are located at two ends of the liquid blowing piston.

Furthermore, the side wall of the piston cavity is provided with an oil through hole communicated with the liquid storage cavity, the oil through hole is communicated with the clamping tooth oil cavity through a middle channel, the oil through hole is vertically arranged with the middle channel, and the middle channel is positioned at the opening end of the pressurizing cavity so that the pressurizing piston extends into the middle channel.

Furthermore, the piston cavity and the pressurizing cavity are the same cavity, a first liquid blowing air bag and a pressurizing air bag which are located at one end of the pressurizing piston are arranged in the piston cavity, the liquid storage cavity and the first air inlet cavity are located on the outer periphery and the inner periphery of the first liquid blowing air bag, and the second air inlet cavity is located in the pressurizing air bag.

Furthermore, a third liquid blowing air bag is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are positioned on the outer periphery and the inner periphery of the third liquid blowing air bag.

Furthermore, the oil hole switches are located above the clamping teeth and are arranged in one-to-one correspondence with the clamping teeth, or the oil hole switches and the oil through holes are located at one end of the fixing frame in the length direction.

Furthermore, a second liquid blowing air bag and a liquid storage air bag are arranged in the piston cavity, a hydraulic expansion pipe is arranged at one end of each clamping tooth, the liquid storage cavity is located in the liquid storage air bag, an oil cavity of each clamping tooth is located in the hydraulic expansion pipe, and the first air inlet cavity is located in the second liquid blowing air bag.

The invention also provides a quick mold clamping system which comprises the gas-liquid pressurization driving clamping mechanism.

The invention has the beneficial effects that:

(1) The gas-liquid pressurization driving clamping mechanism and the rapid mould clamping system comprising the same are skillfully integrated and utilize the advantages of pneumatic and hydraulic pressure, so that the mould clamping function of large clamping force is realized by using common industrial compressed air, a hydraulic pump station is cancelled, and the oil leakage risk of a long-distance hydraulic pipeline is avoided.

(2) The gas-liquid pressurization driving clamping mechanism and the die rapid clamping system comprising the same are provided with the clamping tooth oil cavity and the liquid storage cavity, hydraulic oil only needs to move back and forth between the clamping tooth oil cavity and the liquid storage cavity, only the first air inlet cavity and the reset piece are used for providing flowing thrust of the hydraulic oil, a hydraulic channel is simple, the risk of oil leakage does not exist, and a hydraulic pump station is not needed.

(3) According to the gas-liquid pressurization driving clamping mechanism and the rapid clamping system of the mold comprising the same, the expansion and contraction of each cavity are realized by arranging the air bag, the air bag has good sealing performance, and the phenomenon of air leakage or oil leakage cannot occur.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a gas-liquid pressurizing driving clamping mechanism in a unclamped state according to a first embodiment of the invention;

fig. 2 is a schematic view of a gas-liquid pressurizing driving clamping mechanism in a preliminary clamping state according to a first embodiment of the invention;

FIG. 3 is a schematic view of a clamping mechanism driven by gas-liquid pressurization according to a first embodiment of the present invention;

FIG. 4 is a schematic view of an embodiment of a booster piston of the present invention;

FIG. 5 is a schematic view of the gas-liquid pressurizing drive clamping mechanism in a released state according to the second embodiment of the present invention;

FIG. 6 is a schematic view of the gas-liquid pressurizing driving clamping mechanism in a preliminary clamping state according to the second embodiment of the present invention;

FIG. 7 is a schematic view of the gas-liquid pressurizing driving clamping mechanism in a stable clamping state according to the second embodiment of the present invention;

fig. 8 is a schematic view of a gas-liquid pressurizing driving clamping mechanism according to a third embodiment of the invention in a clamping state;

FIG. 9 is a schematic view of a gas-liquid pressurizing drive clamping mechanism according to a third embodiment of the invention in a released state;

FIG. 10 isbase:Sub>A sectional view taken along line A-A of FIG. 8;

FIG. 11 is a sectional view taken along line B-B of FIG. 8;

FIG. 12 is a sectional view taken along line C-C of FIG. 8;

fig. 13 is a side view of a gas-liquid pressurizing drive clamping mechanism according to a fourth embodiment of the invention;

FIG. 14 is a cross-sectional view taken along line D-D of FIG. 13;

FIG. 15 is a sectional view taken along line E-E of FIG. 13;

FIG. 16 is a sectional view taken along line F-F of FIG. 13;

fig. 17 is a schematic view of the gas-liquid pressurizing driving clamping mechanism according to the fourth embodiment of the invention in a clamping state;

fig. 18 is a schematic view of the gas-liquid pressurizing drive clamping mechanism according to the fourth embodiment of the invention in a released state.

In the figure, 1, a fixed frame, 101, a central base, 1011, a clamping section, 102, a first connecting plate, 103, a second connecting plate, 104, a first outer side plate, 105, a slide way, 106, a second outer side plate, 2, an oil hole switch, 201, a pressurizing piston, 2021, a piston body, 2022, a pressurizing column, 202, a second air inlet cavity, 3, a clamping tooth, 4, a first resetting member, 5, a clamping tooth oil cavity, 6, a piston cavity, 601, a liquid storage cavity, 602, a first air inlet cavity, 7, a quick clamp, 8, an oil through hole, 9, an intermediate channel, 10, a liquid blowing piston, 11, an oil guide hole, 12, a second resetting member, 13, a first liquid blowing air bag, 14, a pressurizing air bag, 15, a pressurizing ring, 16, a second liquid blowing air bag, 17, a liquid storage air bag, 18, a third liquid blowing air bag, 19, a compressed air channel, 20, a partition plate, 21, a horizontal section, 22, a vertical section, 23, a hydraulic expansion oil channel, 24 and a hydraulic expansion pipe.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

A gas-liquid pressurization driving clamping mechanism comprises a fixed frame 1, an oil hole switch 2, a plurality of clamping teeth 3 arranged along the length direction of the fixed frame 1 and first reset pieces 4 arranged in one-to-one correspondence with the clamping teeth 3; the fixed frame 1 is provided with a clamping tooth oil cavity 5 and a piston cavity 6, the clamping tooth oil cavity 5 and the first reset piece 4 are respectively positioned at two ends of the clamping tooth 3 along the moving direction of the clamping tooth 3, the piston cavity 6 comprises a liquid storage cavity 601 and a first air inlet cavity 602 which are not communicated with each other and have variable volumes, and the first air inlet cavity 602 is connected with an external air source; when the oil hole switch 2 is opened, the liquid storage cavity 601 is communicated with the clamping tooth oil cavity 5; when the oil hole switch 2 is closed, the liquid storage cavity 601 is disconnected from the clamping tooth oil cavity 5; the reservoir 601 is adapted to close when the clamping tooth 3 is in the clamped condition.

The fixing frame 1 serves as a mounting base and is of a fixed structure, the clamping teeth 3 move in a reciprocating mode to be matched with the fixing frame 1 to clamp or loosen the quick clamp 7, when no hydraulic oil exists in the clamping teeth oil cavity 5, the hydraulic oil is located in the liquid storage cavity 601, the volume of the first air inlet cavity 602 is at the minimum value, the clamping teeth 3 are located at one end of a movement stroke at the moment, when the first air inlet cavity 602 admits air to enable the volume of the first air inlet cavity 602 to be gradually increased, the hydraulic oil gradually enters the clamping teeth oil cavity 5 from the liquid storage cavity 601 to enable the volume of the clamping teeth oil cavity 5 to be increased, so that the clamping teeth 3 are pushed to move towards the other end of the movement stroke, meanwhile, the first reset piece 4 contracts, when the clamping teeth 3 need to return to the initial position again, air admission to the first air inlet cavity 602 is stopped, the clamping teeth 3 move in a reverse direction under the action of the first reset piece 4, and the hydraulic oil is pushed to return to the liquid storage cavity 601 again.

According to the invention, the clamping teeth 3 can clamp the quick clamp 7 when the clamping tooth oil cavity 5 is at the maximum volume value, and the clamping teeth 3 can clamp the quick clamp 7 when the clamping tooth oil cavity 5 is at the minimum volume value, the arrangement of the first reset piece 4 and the clamping tooth oil cavity 5 is mainly depended on, when the clamping teeth 3 are in the clamping state, the oil hole switch 2 is closed, so that the liquid storage cavity 601 is disconnected from the clamping tooth oil cavity 5, the stability of the clamping state can be ensured, and the situation that hydraulic oil flows back into the liquid storage cavity 601 due to unstable air pressure is avoided.

The oil hole switch 2 may be, but is not limited to, configured as follows: the oil hole switch 2 comprises a pressurizing piston 201 and a pressurizing cavity, wherein the pressurizing piston 201 is positioned in the fixing frame 1, the pressurizing cavity is used for reciprocating motion of the pressurizing piston 201, one end of the pressurizing cavity is opened, the pressurizing piston 201 is separated into a second air inlet cavity 202 which is not communicated with the opening end of the pressurizing cavity, and the second air inlet cavity 202 is connected with an external air source; the open end of the pressurizing cavity is communicated with the liquid storage cavity 601 and the clamping tooth oil cavity 5, and when the pressurizing piston 201 moves towards the direction of the open end of the pressurizing cavity, the oil hole switch 2 is closed.

When the pressure of the second air inlet cavity 202 rises, the booster piston 201 is pushed to move towards the opening end of the booster cavity, the oil hole switch 2 is closed, and when the second air inlet cavity 202 returns to the vacuum state, the booster piston 201 moves in the reverse direction under the pushing of hydraulic oil, and the oil hole switch 2 is opened.

Compared with the prior art, the pneumatic system is a power source which is easily obtained in workshops, and each workshop basically has a compressed air source, so that the rapid die clamping system does not need an additional power source device, and the hydraulic clamping system needs to be additionally provided with a hydraulic pump and an external pipeline; in addition, the invention has no extra energy consumption because of no extra pump station system, and does not need a complex electrical control system to control parameters of output pressure, flow and flow rate of the pump station, so the energy consumption is close to zero.

Example one

As shown in fig. 1-3, a gas-liquid pressurization driving clamping mechanism comprises a fixed frame 1, an oil hole switch 2, a plurality of clamping teeth 3 arranged along the length direction of the fixed frame 1, and first reset pieces 4 arranged in one-to-one correspondence with the clamping teeth 3; the fixed frame 1 is provided with a clamping tooth oil cavity 5 and a piston cavity 6, the clamping tooth oil cavity 5 and the first reset piece 4 are respectively positioned at two ends of the clamping tooth 3 along the moving direction of the clamping tooth 3, the piston cavity 6 comprises a liquid storage cavity 601 and a first air inlet cavity 602 which are not communicated with each other and have variable volumes, and the first air inlet cavity 602 is connected with an external air source; when the oil hole switch 2 is opened, the liquid storage cavity 601 is communicated with the clamping tooth oil cavity 5; when the oil hole switch 2 is closed, the liquid storage cavity 601 is disconnected from the clamping tooth oil cavity 5; the reservoir 601 is adapted to close when the clamping tooth 3 is in the clamped condition.

The fixing frame 1 extends along the length direction, as shown in fig. 1, the fixing frame 1 includes a central base 101, a first connecting plate 102, a second connecting plate 103 and a first outer plate 104 which are located on two sides of the central base 101 and are connected in sequence, two columns of quick clamps 7 are symmetrically arranged on two sides of the central base 101, a clamping section 1011 which is clamped by the quick clamps 7 in a matched manner is arranged on the lower half portion of the central base 101, a slide 105 which is used for reciprocating movement of the quick clamps 7 is arranged in the central base 101, a first reset piece 4 is located in the slide 105, a spring can be selected as the first reset piece 4, the first reset piece 4 can be arranged in one-to-one correspondence with the clamping teeth 3, two ends of the first reset piece 4 are respectively abutted against the clamping teeth 3 and the central base 101, in this embodiment, the two symmetrically arranged clamping teeth 3 share the first reset piece 4, and the slide 105 penetrates through along the width direction.

In the present embodiment, the oil hole switches 2 are located above the clamping teeth 3, and the oil hole switches 2 are arranged in one-to-one correspondence with the clamping teeth 3, as shown in fig. 1, one side of the first connecting plate 102 and the upper half of the central base 101 enclose a pressurizing cavity, the lower side of the first connecting plate 102 is not closed, an opening of the pressurizing cavity is formed, one side of the second connecting plate 103, the other side of the first connecting plate 102 and the partition plate 20 located below the second connecting plate 103 enclose a piston cavity 6, and the first outer plate 104 covers the outer side of the fixing frame 1 and forms a clamping tooth oil cavity 5 with the lower half of the central base 101.

The side wall of the piston cavity 6 is provided with an oil through hole 8 communicated with the liquid storage cavity 601, the oil through hole 8 is communicated with the clamping tooth oil cavity 5 through an intermediate channel 9, the oil through hole 8 is vertically arranged with the intermediate channel 9, and the intermediate channel 9 is positioned at the opening end of the pressurizing cavity, so that the pressurizing piston 201 extends into the intermediate channel 9. The middle channel 9 of this embodiment is located below the partition plate 20, the oil through hole 8 penetrates through the thickness direction of the partition plate 20, the pressurizing piston 201 includes a piston body 2011 and a pressurizing column 2012 (as shown in fig. 4) located at the front end of the piston body 2011, the pressurizing column 2012 extends out of the pressurizing cavity from an opening of the pressurizing cavity, the end face dimension of the piston body 2011 is greater than the end face dimension of the pressurizing column 2012, the piston body 2011 is used as a push plate, and in other optional embodiments, the end face dimensions of the piston body 2011 and the pressurizing column 2012 can also be the same. The piston cavity 6 is internally provided with a liquid blowing piston 10, and the liquid storage cavity 601 and the first air inlet cavity 602 are positioned at two ends of the liquid blowing piston 10.

The design has the oil guide hole 11 on the pressure boost post 2012, and the oil guide hole 11 is L shape structure, and when oil hole switch 2 was in the open mode, the upper end of oil guide hole 11 aligns with oil through hole 8 to make the hydraulic oil that drum liquid piston 10 ordered get into from stock solution chamber 601 and press from both sides tight tooth oil pocket 5, promote both sides and press from both sides tight tooth 3 and move towards the centre in opposite directions, tentatively press from both sides tight mould, as shown in fig. 2. After the clamping teeth 3 reach the clamping state, the piston body 2011 receives pressure generated by compressed air entering from the second air inlet cavity 202 to push the pressurizing column 2012 to move, so that the pressurizing effect is realized, the oil guide hole 11 and the oil through hole 8 are staggered, the oil hole switch 2 is closed, and the clamping teeth 3 reach the stable clamping state, as shown in fig. 3.

Because the piston of each chamber is movable is separated, in order to improve the sealing effect, the present embodiment needs to provide sealing rings between the piston and the adjacent side wall, for example, sealing rings are provided between the upper surface of the pressurizing piston 201 and the first connecting plate 102, between the upper surface of the liquid-blowing piston 10 and the second connecting plate 103, and between the lower surface of the liquid-blowing piston 10 and the partition plate 20.

Preferably, in order to increase the returning speed of the boost piston 201, the present embodiment is provided with a second returning element 12 at an end of the boost piston 201 opposite to the second air inlet cavity 202, so that the boost piston 201 moves towards the second air inlet cavity 202 in the returning state. As shown in fig. 1, the second restoring member 12 is located in the intermediate channel 9.

Example two

As shown in fig. 5 to 7, the present embodiment differs from the first embodiment in that the first connecting plate 102, the second connecting plate 103 and the first outer plate 104 on both sides of the central base 101 are replaced by the second outer plate 106, that is, only the second outer plate 106 is installed on both sides of the central base 101, and the pressurizing cavity and the piston cavity 6 are combined into one, the upper part of the second outer plate 106 forms the pressurizing cavity (or the piston cavity 6) with the central base 101, and the lower part of the second outer plate 106, the central base 101 and the clamping teeth 3 enclose the clamping teeth oil cavity 5. The first liquid blowing air bag 13 and the pressurizing air bag 14 which are positioned at one end of the pressurizing piston 201 are arranged in the piston cavity 6, the liquid storage cavity 601 and the first air inlet cavity 602 are positioned on the outer periphery and the inner periphery of the first liquid blowing air bag 13, and the second air inlet cavity 202 is positioned in the pressurizing air bag 14. The first liquid blowing air bag 13 and the pressurizing air bag 14 are located on two sides of the piston body 2011, an axially-through pressurizing ring 15 is arranged at an opening of the piston cavity 6, the middle channel 9 is located in the pressurizing ring 15, and the oil through hole 8 is located in one end, facing the opening of the piston cavity 6, of the pressurizing ring 15.

When pressure boost gasbag 14 is in the contraction state, oil guide hole 11 switches on with oil through hole 8, oil hole switch 2 is in the open mode, when first liquid air bag 13 expands, the hydraulic oil that is promoted by first liquid air bag 13 gets into from stock solution chamber 601 and presss from both sides tight tooth oil pocket 5, promote two tight teeth 3 of clamp of symmetrical arrangement and move towards the centre in opposite directions, preliminary clamping die (as shown in fig. 6), when pressure boost gasbag 14 begins to let in the air and press from both sides the hydraulic oil of pressing from both sides tight tooth oil pocket 5 to the drum and carry out the pressure boost, first liquid air bag 13 then deflates, reach and stabilize the centre gripping state, as shown in fig. 7.

This embodiment is owing to let in compressed air in first liquid air bag 13 and pressure boost gasbag 14, and first liquid air bag 13 and pressure boost gasbag 14 are totally enclosed structure, consequently need not set up the sealing washer in the periphery of pressure boost piston 201, and sealed effect is better.

In other alternative embodiments of this embodiment, the pressurizing air bag 14 may be eliminated, and in this case, a sealing ring needs to be disposed on the outer periphery of the pressurizing piston 201.

EXAMPLE III

The difference between this embodiment and the above embodiments is that the oil hole switch 2 is located at one end of the fixing frame 1 in the length direction, as shown in fig. 10 and 12, the pressurizing piston 201 and the oil hole 8 are both located at the left end of the fixing frame 1, and two are symmetrically arranged along the width direction of the fixing frame 1, because the pressurizing cavity is located at one end of the fixing frame 1, only the piston cavity 6 needs to be arranged in the main body portion of the fixing frame 1, the fluid reservoir 601 and the first air inlet cavity 602 can be separated by the liquid-blowing piston 10 in the first embodiment, or can be separated by the third liquid-blowing air bag 18, and the fixing frame 1 has two air source interfaces, one of which enters the two third liquid-blowing air bags 18 through the compressed air channel 19, the other of which enters the second air inlet cavity 202, and the hydraulic oil in the fluid reservoir 601 enters the hydraulic oil channel 23 through the intermediate channel through the oil hole 8 located at one end, and finally enters each clamping tooth 5 (as shown in fig. 10-12).

As shown in fig. 8, when the clamping tooth 3 is in the clamped state, the third liquid-blowing air bag 18 is inflated, and hydraulic oil enters the clamping tooth oil chamber 5 from the liquid storage chamber 601; as shown in fig. 9, when the clamping teeth 3 are in the clamped state, the third liquid-blowing bladder 18 contracts.

Compared with the above-mentioned embodiments, the structure of the present embodiment is more simplified, and the uniform clamping of the one-side clamping tooth 3 can be realized by using one pressurizing piston 201.

Example four

The oil hole switch 2 of the present embodiment is also located at one end of the mount 1 in the length direction, and in addition, the present embodiment further has the following differences from the above embodiments, the clamping tooth oil chamber 5, the liquid storage chamber 601 and the first air intake chamber 602 are all disposed in a sealed structure, as shown in fig. 17 and 18, the second liquid-blowing air chamber 16 and the liquid storage air chamber 17 are disposed in the piston chamber 6, one end of the clamping tooth 3 is provided with a hydraulic expansion pipe 24, the liquid storage chamber 601 is disposed in the liquid storage air chamber 17, the clamping tooth oil chamber 5 is disposed in the hydraulic expansion pipe 24, the first air intake chamber 602 is disposed in the second liquid-blowing air chamber 16, the oil hole 8 is disposed at one end of the mount 1, the oil hole 8 has an upper horizontal section and a lower horizontal section 21, the upper horizontal section 21 is connected with the liquid storage air chamber 17 (as shown in fig. 14), the lower horizontal section 21 is connected with the hydraulic expansion pipes 24 at both sides (as shown in fig. 15), the two horizontal sections 21 are connected through the vertical section 22, the vertical section 22 of the oil hole 8 extends to the middle passage 9 (as shown in fig. 16), the hydraulic expansion pipe 24 is communicated with the liquid storage air chamber 17, hydraulic oil hole 17, hydraulic oil can flow between the oil hole 8, and the piston can be blocked, and the piston can be pressurized.

EXAMPLE five

A quick mold clamping system comprises the gas-liquid pressurization driving clamping mechanism.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a gas-liquid pressure boost drive clamping mechanism which characterized in that: the oil hole switch is arranged on the fixed frame, and the oil hole switch is arranged on the fixed frame;

the fixing frame is provided with a clamping tooth oil cavity and a piston cavity, the clamping tooth oil cavity and the first reset piece are respectively positioned at two ends of the clamping tooth along the moving direction of the clamping tooth, the piston cavity comprises a liquid storage cavity and a first air inlet cavity which are not communicated with each other and have variable volumes, and the first air inlet cavity is connected with an external air source;

when the oil hole switch is opened, the liquid storage cavity is communicated with the clamping tooth oil cavity; when the oil hole switch is closed, the liquid storage cavity is disconnected with the clamping tooth oil cavity; the reservoir is adapted to close when the clamping tooth is in the clamped condition.

2. The gas-liquid pressurization driven clamping mechanism according to claim 1, characterized in that: the oil hole switch comprises a pressurizing piston and a pressurizing cavity, the pressurizing piston is positioned in the fixing frame and reciprocates, one end of the pressurizing cavity is provided with an opening, the pressurizing piston is divided into a second air inlet cavity which is not communicated with the opening end of the pressurizing cavity in the pressurizing cavity, and the second air inlet cavity is connected with an external air source; the opening end of the pressurizing cavity is communicated with the liquid storage cavity and the clamping tooth oil cavity, and when the pressurizing piston moves towards the opening end of the pressurizing cavity, the oil hole switch is closed.

3. The gas-liquid pressurization driven clamping mechanism according to claim 2, characterized in that: and a second resetting piece is arranged at one end of the pressurizing piston, which is back to the second air inlet cavity, so that the pressurizing piston moves towards the direction of the second air inlet cavity in a resetting state.

4. The gas-liquid pressurization driven clamping mechanism according to claim 1, characterized in that: a liquid blowing piston is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are located at two ends of the liquid blowing piston.

5. The gas-liquid pressurization driven clamping mechanism according to claim 2, characterized in that: the side wall of the piston cavity is provided with an oil through hole communicated with the liquid storage cavity, the oil through hole is communicated with the clamping tooth oil cavity through an intermediate channel, the oil through hole is vertically arranged with the intermediate channel, and the intermediate channel is located at the opening end of the pressurizing cavity so that the pressurizing piston extends into the intermediate channel.

6. The gas-liquid pressurization driven clamping mechanism according to claim 5, characterized in that: the piston cavity and the pressurization cavity are the same cavity, a first liquid blowing air bag and a pressurization air bag which are located at one end of the pressurization piston are arranged in the piston cavity, the liquid storage cavity and the first air inlet cavity are located on the outer periphery and the inner periphery of the first liquid blowing air bag, and the second air inlet cavity is located in the pressurization air bag.

7. The gas-liquid pressurization driven clamping mechanism according to claim 1, characterized in that: and a third liquid blowing air bag is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are positioned on the outer periphery and the inner periphery of the third liquid blowing air bag.

8. The gas-liquid pressurization driven clamping mechanism according to claim 1, characterized in that: the oil hole switches are located above the clamping teeth and are arranged in one-to-one correspondence with the clamping teeth, or the oil hole switches and the oil passing holes are located at one end of the fixing frame in the length direction.

9. The gas-liquid pressurization driven clamping mechanism according to claim 1, characterized in that: the piston cavity is internally provided with a second liquid blowing air bag and a liquid storage air bag, one end of the clamping tooth is provided with a hydraulic expansion pipe, the liquid storage cavity is positioned in the liquid storage air bag, the oil cavity of the clamping tooth is positioned in the hydraulic expansion pipe, and the first air inlet cavity is positioned in the second liquid blowing air bag.

10. A mould rapid clamping system is characterized in that: comprising the gas-liquid pressurization driven clamping mechanism of any one of claims 1 to 9.

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