A gas-liquid pressurization driving clamping mechanism and a mold quick clamping system comprising the same

Abstract

The application discloses a kind of gas-liquid pressurization drive clamping mechanism and the mould fast clamping system comprising it, including fixed frame, oil hole switch, several clamping teeth being arranged along the length direction of fixed frame and the first reset member being set corresponding to clamping tooth one by one;The fixed frame has clamping tooth oil cavity and piston cavity, the clamping tooth oil cavity and first reset member are respectively located at both ends of clamping tooth along the movement direction of clamping tooth, and the piston cavity includes mutually incommunicable and variable-volume liquid storage cavity and first air inlet, and the first air inlet is connected with external gas source;When oil hole switch opens, liquid storage cavity is communicated with clamping tooth oil cavity;When oil hole switch is closed, liquid storage cavity is disconnected with clamping tooth oil cavity;The liquid storage cavity is suitable for closing when clamping tooth is in clamping state.The application ingeniously utilizes the advantages of pneumatic and hydraulic, so as to realize the mould clamping function of general industrial compressed air with large clamping force, cancel the oil leakage risk of long-distance hydraulic pipeline and avoid hydraulic pump station.

Description

Technical Field

[0001] This invention relates to the field of bending machine technology, and in particular to a pneumatic-hydraulic pressurized clamping mechanism and a rapid clamping system for molds including the same. Background Technology

[0002] In traditional bending machines, the bending die cannot be installed vertically onto the quick clamps, which is inconvenient for workers. Furthermore, after loading the die, each quick clamp needs to be manually tightened (a 3-meter bending machine typically has about 16-20 quick clamps). When unloading the die, the quick clamps must be manually released, and the die must be pulled down by hand while being pried back and forth. Each time a die is changed, the above loading and unloading process needs to be repeated, which wastes manpower, reduces production efficiency, and does not enable automatic tool changing in bending processing.

[0003] Existing technologies also employ hydraulic clamping and quick-release methods, but these require the installation of a hydraulic pump station, and the installation of hydraulic pipelines within the bending machine is quite complex, resulting in higher machine operating costs and the risk of oil leakage. Summary of the Invention

[0004] To address the problems of low efficiency and wasted labor when using traditional clamping and loosening methods in existing bending machines, and the high cost and complex structure when using hydraulic clamping and loosening methods, this invention provides a pneumatic-hydraulic booster-driven clamping mechanism and a mold quick clamping system including the same to solve the above problems.

[0005] This invention proposes a gas-liquid booster driven clamping mechanism, comprising a fixed frame, an oil port switch, a plurality of clamping teeth arranged along the length of the fixed frame, and a first reset member corresponding to each clamping tooth; the fixed frame has a clamping tooth oil chamber and a piston chamber, the clamping tooth oil chamber and the first reset member being located at both ends of the clamping teeth along the movement direction of the clamping teeth, the piston chamber comprising a non-communicating and variable-volume storage chamber and a first air inlet chamber, the first air inlet chamber being connected to an external air source; when the oil port switch is open, the storage chamber is connected to the clamping tooth oil chamber; when the oil port switch is closed, the storage chamber is disconnected from the clamping tooth oil chamber; the storage chamber is adapted to be closed when the clamping teeth are in the clamping state.

[0006] Furthermore, the oil port switch includes a booster piston located within a fixed frame and a booster chamber that allows the booster piston to reciprocate and is open at one end. The booster piston separates a second air intake chamber within the booster chamber that is not connected to the open end of the booster chamber. The second air intake chamber is connected to an external air source. The open end of the booster chamber is connected to a liquid storage chamber and a clamping tooth oil chamber. When the booster piston moves toward the open end of the booster chamber, the oil port switch closes.

[0007] Furthermore, the end of the booster piston facing away from the second intake chamber is provided with a second reset member, so that the booster piston moves toward the second intake chamber in the reset state.

[0008] Furthermore, the piston chamber is provided with a liquid-drumping piston, and the liquid storage chamber and the first air inlet chamber are located at both ends of the liquid-drumping piston.

[0009] Furthermore, the side wall of the piston chamber has an oil passage that communicates with the liquid storage chamber. The oil passage is connected to the clamping tooth oil chamber through an intermediate channel. The oil passage is arranged perpendicularly to the intermediate channel, which is located at the opening end of the booster chamber, so that the booster piston can extend into the intermediate channel.

[0010] Furthermore, the piston chamber and the pressurization chamber are the same chamber. The piston chamber is provided with a first liquid-drumming airbag and a pressurization airbag located at one end of the pressurization piston. The liquid storage chamber and the first air intake chamber are located on the outer and inner peripheries of the first liquid-drumming airbag, respectively, and the second air intake chamber is located inside the pressurization airbag.

[0011] Furthermore, the piston chamber is provided with a third liquid-filled air bladder, and the liquid storage chamber and the first air intake chamber are located on the outer and inner peripheries of the third liquid-filled air bladder, respectively.

[0012] Furthermore, the oil hole switch is located above the clamping teeth and the oil hole switch is arranged in a one-to-one correspondence with the clamping teeth, or the oil hole switch and the oil passage hole are located at one end of the length direction of the fixing frame.

[0013] Furthermore, the piston chamber is provided with a second fluid-drumming air bladder and a fluid-reserving air bladder, one end of the clamping tooth is provided with a hydraulic expansion tube, the fluid-reserving chamber is located inside the fluid-reserving air bladder, the clamping tooth oil chamber is located inside the hydraulic expansion tube, and the first air intake chamber is located inside the second fluid-drumming air bladder.

[0014] The present invention also proposes a mold quick clamping system, including the gas-liquid booster driven clamping mechanism described above.

[0015] The beneficial effects of this invention are:

[0016] (1) The pneumatic-hydraulic booster driven clamping mechanism and the mold quick clamping system containing it described in this invention cleverly integrate and utilize the advantages of pneumatic and hydraulic systems, thereby realizing the mold clamping function with large clamping force using general industrial compressed air, eliminating the hydraulic pump station and avoiding the risk of oil leakage from long-distance hydraulic pipelines.

[0017] (2) The gas-liquid booster driven clamping mechanism and the mold quick clamping system containing it described in this invention are provided with a clamping tooth oil chamber and a liquid storage chamber. The hydraulic oil only needs to move back and forth between the clamping tooth oil chamber and the liquid storage chamber. The hydraulic oil flow thrust is provided only by the first air inlet chamber and the reset component. The hydraulic channel is simple, there is no risk of oil leakage, and there is no need to set up a hydraulic pump station.

[0018] (3) The gas-liquid booster driving clamping mechanism and the mold quick clamping system containing it described in this invention achieve the expansion and contraction of each chamber by setting an airbag. The airbag has good sealing performance and will not leak air or oil. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 1 of the present invention in the released state;

[0021] Figure 2 This is a schematic diagram of the gas-liquid booster driving clamping mechanism in the initial clamping state as described in Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 1 of the present invention in a stable clamping state;

[0023] Figure 4 This is a schematic diagram of a specific embodiment of the booster piston in this invention;

[0024] Figure 5 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 2 of the present invention in the released state;

[0025] Figure 6 This is a schematic diagram of the gas-liquid booster driven clamping mechanism in the initial clamping state as described in Embodiment 2 of the present invention;

[0026] Figure 7 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 2 of the present invention in a stable clamping state;

[0027] Figure 8 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 3 of the present invention in the clamping state;

[0028] Figure 9 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 3 of the present invention in the released state;

[0029] Figure 10 yes Figure 8 Sectional view along axis AA;

[0030] Figure 11 yes Figure 8 BB-direction sectional view;

[0031] Figure 12 yes Figure 8 CC-direction sectional view;

[0032] Figure 13 This is a side view of the gas-liquid booster driven clamping mechanism described in Embodiment 4 of the present invention;

[0033] Figure 14 yes Figure 13 DD section view;

[0034] Figure 15 yes Figure 13 EE-directed sectional view;

[0035] Figure 16 yes Figure 13 FF section view;

[0036] Figure 17 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 4 of the present invention in the clamping state;

[0037] Figure 18 This is a schematic diagram of the gas-liquid booster driving clamping mechanism described in Embodiment 4 of the present invention in the released state.

[0038] In the diagram, 1. Fixing frame; 101. Central base; 1011. Clamping section; 102. First connecting plate; 103. Second connecting plate; 104. First outer side plate; 105. Slide rail; 106. Second outer side plate; 2. Oil port switch; 201. Pressure boosting piston; 2021. Piston body; 2022. Pressure boosting column; 202. Second air intake chamber; 3. Clamping teeth; 4. First reset component; 5. Clamping tooth oil chamber; 6. Piston chamber; 601. Liquid reservoir. 602. First air intake chamber; 7. Quick clamp; 8. Oil passage; 9. Intermediate channel; 10. Fluid-drum piston; 11. Oil guide hole; 12. Second reset component; 13. First fluid-drum airbag; 14. Pressure-boosting airbag; 15. Pressure-boosting ring; 16. Second fluid-drum airbag; 17. Liquid storage airbag; 18. Third fluid-drum airbag; 19. Compressed air passage; 20. Partition; 21. Horizontal section; 22. Vertical section; 23. Hydraulic oil passage; 24. Hydraulic expansion pipe. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] A gas-liquid booster driven clamping mechanism includes a fixed frame 1, an oil port switch 2, a plurality of clamping teeth 3 arranged along the length direction of the fixed frame 1, and a first reset member 4 corresponding to each clamping tooth 3. The fixed frame 1 has a clamping tooth oil chamber 5 and a piston chamber 6. The clamping tooth oil chamber 5 and the first reset member 4 are located at both ends of the clamping teeth 3 along the movement direction of the clamping teeth 3, respectively. The piston chamber 6 includes a liquid storage chamber 601 that is not interconnected and has a variable volume and a first air inlet chamber 602. The first air inlet chamber 602 is connected to an external air source. When the oil port switch 2 is open, the liquid storage chamber 601 is connected to the clamping tooth oil chamber 5. When the oil port switch 2 is closed, the liquid storage chamber 601 is disconnected from the clamping tooth oil chamber 5. The liquid storage chamber 601 is adapted to be closed when the clamping teeth 3 are in the clamping state.

[0041] The fixed frame 1 serves as the mounting base and is a fixed structure. The clamping teeth 3 reciprocate and cooperate with the fixed frame 1 to clamp or release the quick clamp 7. When there is no hydraulic oil in the clamping tooth oil chamber 5, the hydraulic oil is located in the reservoir 601, and the volume of the first air intake chamber 602 is at its minimum. At this time, the clamping teeth 3 is located at one end of the movement stroke. When air enters the first air intake chamber 602, causing the volume of the first air intake chamber 602 to gradually increase, the hydraulic oil gradually enters the clamping tooth oil chamber 5 from the reservoir 601, causing the volume of the clamping tooth oil chamber 5 to increase, thereby pushing the clamping teeth 3 to move to the other end of the movement stroke. At the same time, the first reset member 4 retracts. When the clamping teeth 3 need to return to the initial position, the air intake to the first air intake chamber 602 stops, and the clamping teeth 3 move in the opposite direction under the action of the first reset member 4, pushing the hydraulic oil back into the reservoir 601.

[0042] This invention can clamp the quick clamp 7 with the clamping tooth 3 when the clamping tooth oil cavity 5 is at its maximum volume, or it can clamp the quick clamp 7 with the clamping tooth oil cavity 5 at its minimum volume. This mainly depends on the position settings of the first reset member 4 and the clamping tooth oil cavity 5. When the clamping tooth 3 is in the clamping state, the oil hole switch 2 is closed, which disconnects the reservoir 601 from the clamping tooth oil cavity 5. This can ensure the stability of the clamping state and prevent hydraulic oil from flowing back into the reservoir 601 due to unstable air pressure.

[0043] The oil port switch 2 may, but is not limited to, adopt the following structure: The oil port switch 2 includes a booster piston 201 located in the fixed frame 1 and a booster chamber that allows the booster piston 201 to reciprocate and is open at one end. The booster piston 201 separates a second air inlet chamber 202 within the booster chamber that is not connected to the open end of the booster chamber. The second air inlet chamber 202 is connected to an external air source. The open end of the booster chamber is connected to the liquid storage chamber 601 and the clamping tooth oil chamber 5. When the booster piston 201 moves toward the open end of the booster chamber, the oil port switch 2 is closed.

[0044] When the pressure in the second intake chamber 202 increases, the booster piston 201 is pushed toward the opening end of the booster chamber, and the oil port switch 2 closes. When the second intake chamber 202 returns to a vacuum state, the booster piston 201 moves in the opposite direction under the push of hydraulic oil, and the oil port switch 2 opens.

[0045] Compared with existing technologies, pneumatic systems are readily available power sources in workshops, and each workshop basically has a compressed air source. Therefore, the mold quick clamping system does not require an additional power source device, while the hydraulic clamping system requires an additional hydraulic pump and external pipeline. In addition, since the present invention does not have an additional pump station system, there is no additional energy consumption, and there is no need for a complex electrical control system to control parameters such as the output pressure, flow rate, and flow velocity of the pump station. Therefore, the energy consumption is close to zero.

[0046] Example 1

[0047] like Figures 1-3 As shown, a gas-liquid booster driven clamping mechanism includes a fixed frame 1, an oil port switch 2, a plurality of clamping teeth 3 arranged along the length direction of the fixed frame 1, and a first reset member 4 corresponding to each clamping tooth 3. The fixed frame 1 has a clamping tooth oil chamber 5 and a piston chamber 6. The clamping tooth oil chamber 5 and the first reset member 4 are located at both ends of the clamping teeth 3 along the movement direction of the clamping teeth 3, respectively. The piston chamber 6 includes a liquid storage chamber 601 and a first air inlet chamber 602 that are not interconnected and have variable volume. The first air inlet chamber 602 is connected to an external air source. When the oil port switch 2 is open, the liquid storage chamber 601 is connected to the clamping tooth oil chamber 5. When the oil port switch 2 is closed, the liquid storage chamber 601 is disconnected from the clamping tooth oil chamber 5. The liquid storage chamber 601 is adapted to be closed when the clamping teeth 3 are in the clamping state.

[0048] The fixing bracket 1 extends along the length direction, such as Figure 1 As shown, 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 located on both sides of the central base 101 and connected in sequence. Two rows of quick clamps 7 are symmetrically arranged on both sides of the central base 101. The lower half of the central base 101 has a clamping section 1011 that cooperates with the quick clamps 7 for clamping. The central base 101 has a slide 105 for the quick clamps 7 to reciprocate. The first reset member 4 is located in the slide 105. The first reset member 4 can be a spring. The first reset member 4 can be set one-to-one with the clamping teeth 3. At this time, the two ends of the first reset member 4 abut against the clamping teeth 3 and the central base 101 respectively. In this embodiment, the two symmetrically arranged clamping teeth 3 share one first reset member 4. At this time, the slide 105 is through in the width direction.

[0049] In this embodiment, the oil hole switch 2 is located above the clamping teeth 3, and the oil hole switch 2 and the clamping teeth 3 are arranged in a one-to-one correspondence. Figure 1As shown, one side of the first connecting plate 102 and the upper half of the central base 101 form a pressurizing chamber. The lower part of the first connecting plate 102 is not closed, forming an opening of the pressurizing chamber. One side of the second connecting plate 103, the other side of the first connecting plate 102, and the partition 20 located below the second connecting plate 103 form a piston chamber 6. The first outer side plate 104 covers the outer side of the fixing frame 1 and forms a clamping toothed oil chamber 5 with the lower half of the central base 101.

[0050] The side wall of the piston chamber 6 has an oil passage 8 communicating with the liquid storage chamber 601. The oil passage 8 communicates with the clamping tooth oil chamber 5 through an intermediate channel 9. The oil passage 8 is arranged perpendicularly to the intermediate channel 9, which is located at the opening end of the boosting chamber, so that the boosting piston 201 can extend into the intermediate channel 9. In this embodiment, the intermediate channel 9 is located below the partition 20, and the oil passage 8 penetrates the thickness direction of the partition 20. The boosting piston 201 includes a piston body 2011 and a boosting column 2012 (e.g., ...) located at the front end of the piston body 2011. Figure 4 As shown, the booster column 2012 extends out of the booster chamber from the opening of the booster chamber. The end face size of the piston body 2011 is larger than the end face size of the booster column 2012. The piston body 2011 is used as a pusher plate. In other optional embodiments, the end face sizes of the piston body 2011 and the booster column 2012 can also be the same. A liquid-drumping piston 10 is provided inside the piston chamber 6. The liquid storage chamber 601 and the first air inlet chamber 602 are located at both ends of the liquid-drumping piston 10.

[0051] The booster column 2012 is designed with an oil guide hole 11, which has an L-shaped structure. When the oil port switch 2 is in the open state, the upper end of the oil guide hole 11 is aligned with the oil passage hole 8, so that the hydraulic oil driven by the pump piston 10 enters the clamping tooth oil chamber 5 from the reservoir 601, pushing the clamping teeth 3 on both sides to move towards the middle, initially clamping the mold, such as... Figure 2 As shown. After the clamping teeth 3 reach the clamping state, the piston body 2011 receives the pressure generated by the compressed air entering from the second intake chamber 202, which pushes the booster column 2012 to move, realizing the boosting effect. This causes the oil guide hole 11 to be misaligned with the oil passage hole 8, the oil hole switch 2 to close, and the clamping teeth 3 to reach a stable clamping state, as shown. Figure 3 As shown.

[0052] Because the pistons in each chamber are separated, in order to improve the sealing effect, this embodiment needs to set a sealing ring between the piston and the adjacent side wall. For example, a sealing ring is set between the upper surface of the booster piston 201 and the first connecting plate 102, the upper surface of the pumping piston 10 and the second connecting plate 103, and the lower surface of the pumping piston 10 and the partition plate 20.

[0053] Preferably, to improve the reset speed of the booster piston 201, this embodiment provides a second reset member 12 at the end of the booster piston 201 facing away from the second intake chamber 202, so that the booster piston 201 moves towards the second intake chamber 202 in the reset state. Figure 1 As shown, the second reset component 12 is located within the intermediate channel 9.

[0054] Example 2

[0055] like Figures 5-7 As shown, the difference between this embodiment and Embodiment 1 is 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 uniformly replaced with the second outer plate 106. That is, only the second outer plate 106 is installed on both sides of the central base 101. At the same time, the pressurizing chamber and the piston chamber 6 are combined into one. The upper part of the second outer plate 106 forms a pressurizing chamber (or piston chamber 6) with the central base 101, and the lower part of the second outer plate 106 forms a clamping tooth oil chamber 5 with the central base 101 and the clamping teeth 3. The piston chamber 6 is provided with a first liquid-filled air bladder 13 and a pressurizing air bladder 14 located at one end of the pressurizing piston 201. The liquid storage chamber 601 and the first air intake chamber 602 are located on the outer and inner peripheries of the first liquid-filled air bladder 13, and the second air intake chamber 202 is located inside the pressurizing air bladder 14. The first hydraulic bladder 13 and the booster bladder 14 are located on both sides of the piston body 2011. An axially penetrating booster ring 15 is provided at the opening of the piston chamber 6. The intermediate channel 9 is located inside the booster ring 15, and the oil passage 8 is located on the end of the booster ring 15 facing the opening of the piston chamber 6.

[0056] When the booster airbag 14 is in the contracted state, the oil guide hole 11 is connected to the oil passage hole 8, and the oil port switch 2 is in the open state. When the first hydraulic airbag 13 expands, the hydraulic oil pushed by the first hydraulic airbag 13 enters the clamping tooth oil chamber 5 from the reservoir chamber 601, pushing the two symmetrically arranged clamping teeth 3 to move towards the center, initially clamping the mold (e.g. Figure 6 As shown), when the booster airbag 14 begins to introduce air to pressurize the hydraulic oil pumped into the clamping gear oil chamber 5, the first booster airbag 13 deflates to achieve a stable clamping state, as shown. Figure 7 As shown.

[0057] In this embodiment, since compressed air is introduced into the first liquid-filled airbag 13 and the pressurizing airbag 14, and the first liquid-filled airbag 13 and the pressurizing airbag 14 are fully enclosed structures, there is no need to set a sealing ring on the outer periphery of the pressurizing piston 201, and the sealing effect is better.

[0058] In other alternative embodiments of this example, the booster airbag 14 can be omitted. In this case, a sealing ring needs to be provided on the outer periphery of the booster piston 201.

[0059] Example 3

[0060] The difference between this embodiment and the above embodiment is that the oil hole switch 2 is located at one end of the length direction of the fixing bracket 1, such as... Figure 10 and Figure 12 As shown, the booster piston 201 and the oil passage 8 are both located at the left end of the fixed frame 1, and there are two of them symmetrically arranged along the width direction of the fixed frame 1. Since the booster chamber is located at one end of the fixed frame 1, only the piston chamber 6 needs to be set in the main body of the fixed frame 1. The liquid storage chamber 601 and the first air intake chamber 602 can be separated by the bulging piston 10 in Embodiment 1, or they can be separated by the third bulging air bladder 18. The fixed frame 1 has two air source interfaces. One air source interface enters into the two third bulging air bladders 18 through the compressed air channel 19, and the other air source interface enters into the second air intake chamber 202. The hydraulic oil in the liquid storage chamber 601 enters the hydraulic oil passage 23 through the oil passage 8 located at one end and the middle passage, and finally enters the oil chamber 5 of each clamping tooth (e.g., Figures 10-12 (As shown).

[0061] like Figure 8 As stated above, when the clamping tooth 3 is in the clamping state, the third hydraulic bladder 18 expands, and hydraulic oil enters the clamping tooth oil chamber 5 from the reservoir chamber 601; Figure 9 As shown, when the clamping tooth 3 is in the clamping state, the third liquid-filled air bladder 18 contracts.

[0062] Compared with the above embodiments, the structure of this embodiment is more simplified, and a single pressurized piston 201 can be used to achieve uniform clamping of the clamping teeth 3 on one side.

[0063] Example 4

[0064] In this embodiment, the oil port switch 2 is also located at one end of the length direction of the fixing frame 1. Furthermore, it differs from the above embodiment in that the clamping tooth oil chamber 5, the liquid storage chamber 601, and the first air inlet chamber 602 are all housed within a sealed structure. Figure 17 and Figure 18 As shown, the piston chamber 6 is equipped with a second hydraulic bladder 16 and a reservoir bladder 17. A hydraulic expansion tube 24 is provided at one end of the clamping teeth 3. The reservoir bladder 601 is located within the reservoir bladder 17, the clamping teeth oil chamber 5 is located within the hydraulic expansion tube 24, the first air inlet chamber 602 is located within the second hydraulic bladder 16, and the oil passage 8 is located at one end of the fixing bracket 1. The oil passage 8 has two horizontal sections 21, the upper horizontal section 21 being connected to the reservoir bladder 17 (e.g., ...). Figure 14 As shown), the lower horizontal section 21 is connected to the hydraulic expansion pipes 24 on both sides (as shown). Figure 15 As shown), the two horizontal sections 21 are connected by a vertical section 22, and the vertical section 22 of the oil passage 8 extends to the middle channel 9 (as shown). Figure 16 As shown, the hydraulic expansion tube 24 and the reservoir air bladder 17 are connected through the oil passage hole 8, and hydraulic oil flows between them. The booster piston 201 can block the oil passage hole 8.

[0065] Example 5

[0066] A mold quick clamping system includes the gas-liquid booster driven clamping mechanism described above.

[0067] In the description of this invention, it should be understood that the terms "center", "length", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0069] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0070] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A gas-liquid supercharged drive clamping mechanism, characterized by: The fixed frame, the oil hole switch, a plurality of clamping teeth arranged along the length direction of the fixed frame, and a first reset member corresponding to each clamping tooth; The fixed frame has a clamping tooth oil cavity and a piston cavity, the clamping tooth oil cavity and the first reset member are respectively located at both ends of the clamping tooth along the movement direction of the clamping tooth, and the piston cavity includes a liquid storage cavity and a first air inlet cavity which are not connected to each other and have variable volumes, and the first air inlet cavity is connected to 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 from the clamping tooth oil cavity; and the oil hole switch is adapted to be closed when the clamping tooth is in a clamping state. When the first air inlet cavity is filled with air, the volume of the first air inlet cavity gradually increases, the hydraulic oil gradually enters the clamping tooth oil cavity from the liquid storage cavity, the volume of the clamping tooth oil cavity increases, and the clamping tooth is pushed to move; when the air in the first air inlet cavity decreases, the clamping tooth moves reversely under the action of the first reset member, and the hydraulic oil is pushed to return to the liquid storage cavity. The oil hole switch includes a booster piston located in the fixed frame and a booster cavity with an open end, the booster piston divides the booster cavity into a second air inlet cavity which is not communicated with the open end of the booster cavity, and the second air inlet cavity is connected to an external air source; the open end of the booster cavity is communicated with the liquid storage cavity and the clamping tooth oil cavity, and the oil hole switch is closed when the booster piston moves towards the open end of the booster cavity.

2. The gas-liquid boost drive clamping mechanism according to claim 1, characterized in that: An end of the booster piston opposite to the second air inlet cavity is provided with a second reset member, so that the booster piston moves towards the second air inlet cavity in a reset state.

3. The gas and liquid boost drive clamping mechanism of claim 1, wherein: A liquid pumping piston is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are located at both ends of the liquid pumping piston.

4. The gas and liquid boosted drive clamping mechanism of claim 1, wherein: A side wall of the piston cavity has an oil passage communicated with the liquid storage cavity, the oil passage is communicated with the clamping tooth oil cavity through an intermediate passage, the oil passage and the intermediate passage are arranged vertically, and the intermediate passage is located at the open end of the booster cavity so that the booster piston extends into the intermediate passage.

5. The gas-liquid boost drive clamping mechanism according to claim 4, characterized in that: The piston cavity and the booster cavity are the same chamber, the piston cavity is provided with a first liquid pumping air bag at one end of the booster piston, the liquid storage cavity and the first air inlet cavity are located at the outer periphery and the inner periphery of the first liquid pumping air bag, and the second air inlet cavity is located in the booster air bag.

6. The gas and liquid boosted drive clamping mechanism of claim 1, wherein: A third liquid pumping air bag is arranged in the piston cavity, and the liquid storage cavity and the first air inlet cavity are located at the outer periphery and the inner periphery of the third liquid pumping air bag.

7. The gas and liquid boosted drive clamping mechanism of claim 4, wherein: The oil hole switch is located above the clamping tooth and is one-to-one corresponding to the clamping tooth, or the oil hole switch and the oil passage are located at one end of the length direction of the fixed frame.

8. The gas and liquid boosted drive clamping mechanism of claim 1, wherein: The piston cavity is provided with a second liquid pumping 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 located in the liquid storage air bag, the clamping tooth oil cavity is located in the hydraulic expansion pipe, and the first air inlet cavity is located in the second liquid pumping air bag.

9. A mold quick clamping system characterized by: The gas-liquid booster drive clamping mechanism of any one of claims 1-8.

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