CN209953778U - Split type pressure kettle locking mechanism of casting machine - Google Patents

Abstract

A split type pressure kettle locking mechanism of a casting machine comprises a main oil cylinder, a middle partition plate, a movable plate, an upper top plate, a first mold locking guide pillar, a second mold locking guide pillar, a pressure kettle, a mold, a split type wedge-shaped locking mechanism and a material returning mechanism; the split type wedge-shaped locking mechanism consists of a first wedge-shaped locking mechanism and a second wedge-shaped locking mechanism, and the first wedge-shaped locking mechanism and the second wedge-shaped locking mechanism are arranged in a left-right mirror symmetry mode; the first wedge-shaped locking mechanism comprises a first upper wedge-shaped block, a first lower wedge-shaped block, a first wedge-shaped block driving mechanism, a first guide seat, a first sliding block and a first guide sleeve; the second wedge-shaped locking mechanism comprises a second upper wedge-shaped block, a second lower wedge-shaped block, a second wedge-shaped block driving mechanism, a second guide seat, a second sliding block and a second guide sleeve. The utility model discloses a quick mode locking, the compound die of casting machine have improved production efficiency, have guaranteed the operation security again, and locking is effectual during the mode locking.

Description

Split type pressure kettle locking mechanism of casting machine

Technical Field

The utility model belongs to the technical field of the aluminum alloy casting equipment, especially, relate to a split type pressure vessel locking mechanism of casting machine.

Background

The light weight is one of the most important ways for saving energy, reducing emission, reducing consumption and increasing range of fuel oil, and light weight materials such as aluminum alloy, magnesium alloy and the like are used for replacing traditional steel materials, so that the light weight materials become necessary choices for the design and the updating of key parts in the fields of aerospace, high-speed rail, automobiles and the like. With the development of casting technology, more parts adopt casting methods such as low-pressure casting, counter-pressure casting, pressure-regulating casting, extrusion casting and the like.

The counter-pressure casting is based on low-pressure casting equipment, and a sealing cover is added outside the casting mould, and is filled with compressed gas, so that the casting mould is under a certain pressure of the gas. When the molten metal is filled, the pressure of gas in the heat-insulating furnace is greater than that of gas in the casting mould, and the filling, pressure maintaining and pressurization of the molten metal are realized like low-pressure casting, but at the moment, the casting is crystallized and solidified under the action of higher pressure under the bidirectional pressure of the sealing cover and the pressure kettle, so that the casting with higher density can be obtained. The pressure-regulating casting is that the casting mould and metal are placed in a negative pressure field at the same time, compressed air is introduced into a heat-insulating furnace in which the metal melt is positioned, so that the metal melt is filled in a cavity against the direction of gravity under a controllable atmosphere, and the metal melt is solidified and crystallized under the action of a certain pressure. The differential pressure casting machine and the pressure-regulating casting machine respectively comprise a frame, a holding furnace, a pressure kettle, a mold and the like, wherein the pressure kettle is positioned above the holding furnace, the mold is positioned in the pressure kettle, and a mold locking guide pillar is supported between the movable plate and the upper top plate. The lower end of the mold locking guide pillar is rigidly connected with the movable plate, so that the pressure kettle and the mold are prevented from being opened, and mold locking is realized.

For a differential pressure casting machine or a pressure-regulating casting machine, the pressure born by an upper die plate and a movable plate is large during working, and in order to prevent the movable plate from being jacked open, the top of the pressure kettle is locked by two traditional methods: one mode is that a hydraulic oil cylinder is directly used for pressing down on a mold locking guide post, but the mode can cause the mold locking guide post to be unstable and twisted; the other type is locking mechanically by a locking device, the locking device is positioned between the top ends of the upper top plate and the mold locking guide columns, but the locking device is integrated, namely the locking device is integrally inserted between the top ends of the upper top plate and the two mold locking guide columns, the top ends of the two mold locking guide columns are not easy to align to locking positions on the locking device, errors easily occur when the locking device is installed, whether the two mold locking guide columns are locked simultaneously or not is inconvenient to observe, and even the situation that only one mold locking guide column is locked and the other mold locking guide column is not locked can occur.

Disclosure of Invention

The utility model provides a split type reation kettle locking mechanism of casting machine, its aim at solve current reation kettle locking device inconvenient observation when the installation whether lock and the unreliable problem of locking.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a split type pressure kettle locking mechanism of a casting machine comprises a main oil cylinder, a bottom plate, a stand column, a middle partition plate, a movable plate, an upper top plate, a first mold locking guide pillar, a second mold locking guide pillar, a pressure kettle, a mold and the split type pressure kettle locking mechanism, wherein the stand column sequentially penetrates through the upper top plate, the movable plate, the middle partition plate and the bottom plate from top to bottom to form a basic frame; the pressure kettle is positioned between the middle partition plate and the movable plate, and the mold is positioned in the pressure kettle;

the split type pressure kettle locking mechanism is used for locking a mold and assisting the main oil cylinder to generate mold closing force, the split type pressure kettle locking mechanism consists of a first wedge-shaped locking mechanism and a second wedge-shaped locking mechanism, the first wedge-shaped locking mechanism and the second wedge-shaped locking mechanism are arranged in a left-right mirror symmetry manner, the first wedge-shaped locking mechanism comprises a first upper wedge-shaped block, a first lower wedge-shaped block, a first wedge-shaped block driving mechanism, a first guide seat, a first sliding block and a first guide sleeve, the first guide seat is transversely arranged and fixedly connected to the upper top plate, a shell of the first wedge-shaped block driving mechanism is fixedly connected to the first guide seat, one end of the first sliding block is fixedly connected with a driving end of the first wedge-shaped block driving mechanism, the other end of the first sliding block is fixedly connected with the first upper wedge-shaped block, the first wedge-shaped block driving mechanism can drive the first sliding block to do linear reciprocating motion in the first guide seat, the first guide sleeve is fixedly connected to the lower end face of the first guide seat, the first lower wedge block is fixedly connected to the top end of the mold locking guide pillar, and the mold locking guide pillar is arranged in the first guide sleeve in a penetrating mode and is connected with the first guide sleeve in a sliding mode; the first upper wedge block and the first lower wedge block are provided with joint inclined planes and are matched at the joint inclined planes; when the mold is locked, the first upper wedge block is matched and attached with the first lower wedge block;

the second wedge-shaped locking mechanism comprises a second upper wedge-shaped block, a second lower wedge-shaped block, a second wedge-shaped block driving mechanism, a second guide seat, a second sliding block and a second guide sleeve, the second guide seat is transversely arranged and fixedly connected on the upper top plate, the shell of the second wedge-shaped block driving mechanism is fixedly connected on the second guide seat, one end of the second sliding block is fixedly connected with the driving end of the second wedge block driving mechanism, the other end of the second sliding block is fixedly connected with the second upper wedge block, the second wedge block driving mechanism can drive the second sliding block to do linear reciprocating motion in the second guide seat, the second guide sleeve is fixedly connected to the lower end face of the second guide seat, the second lower wedge block is fixedly connected to the top end of the mold locking guide column, and the mold locking guide column is arranged in the second guide sleeve in a penetrating mode and is connected with the second guide sleeve in a sliding mode; the second upper wedge block and the second lower wedge block are provided with joint inclined planes and are matched at the joint inclined planes; when the mold is locked, the second upper wedge block is matched and attached with the second lower wedge block;

the attaching inclined plane of the first upper wedge block and the attaching inclined plane of the second upper wedge block are in mirror symmetry in the inclined direction.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, the casting machine further comprises a safety protector, the safety protector comprises a protector main body and a safety lock column, the protector main body is fixed on the upper top plate, the upper end of the safety lock column penetrates through the protector main body, and the lower end of the safety lock column is fixedly connected with the movable plate. The safety protector is produced by SITEMA of Germany.

2. In the above scheme, the first wedge block driving mechanism and the second wedge block driving mechanism are both hydraulic oil cylinders.

3. In the scheme, the casting machine is a counter-pressure casting machine or a pressure-regulating casting machine.

4. In the above-described embodiment, "left-right mirror symmetry" refers to "left-right" in the front view of the casting machine with respect to the front of the casting machine.

The utility model discloses for prior art's advantage lie in:

1. the utility model discloses split type pressure cauldron locking mechanism of casting machine is used for quick, safe mode locking, adopts split type structural design, and split type wedge locking mechanism comprises first wedge locking mechanism and second wedge locking mechanism, makes locking mechanism more convenient when assembling, more accurate, especially the laminating inclined plane of first upper wedge and the laminating inclined plane of second upper wedge be left and right mirror symmetry on the incline direction, has guaranteed that the wedge locking mechanism of each side can both aim at the top of mode locking guide pillar more accurately and lock the mode locking guide pillar, and the locking is more reliable, and the installation adjustment is more convenient; in addition, the split structure design is adopted, and the part processing cost of the whole wedge-shaped locking mechanism is reduced.

2. The utility model discloses casting machine has increased safety arrangement, prevents that the platen from unusually falling.

In a word, the utility model discloses the casting machine adopts split type pressure cauldron locking mechanism, has realized quick mode locking, the compound die of casting machine, has guaranteed the operation security again when having improved production efficiency, and locking is effectual during the mode locking, and the fly leaf goes up and down steadily. The utility model discloses especially adapted to differential pressure casting machine or pressure regulating casting machine that have large-scale mould structure.

Drawings

FIG. 1 is a schematic structural view of a casting machine of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of the split type pressure vessel locking mechanism of the present invention;

fig. 4 is a schematic structural view of the material returning mechanism of the present invention mounted on the movable plate;

fig. 5 is a top view of the material returning mechanism of the present invention;

fig. 6 is the structure diagram of the movable plate synchronous limiting mechanism of the present invention.

In the above drawings: 1. a master cylinder; 2. a first die lock guide post; 3. a first wedge locking mechanism; 4. a second wedge locking mechanism; 5. a first upper wedge block; 6. a first lower wedge block; 7. a first wedge block drive mechanism; 8. a first guide seat; 9. an upper die; 10. a lower die; 11. a base plate; 12. a middle partition plate; 13. a movable plate; 14. a holding furnace; 15. putting the mixture into a pressure kettle; 16. pressing the autoclave; 17. a first slider; 18. a first guide sleeve; 19. a column; 20. a riser tube; 21. an upper top plate; 22. a second upper wedge; 23. a second lower wedge; 24. a second wedge block drive mechanism; 25. a second guide seat; 26. a second slider; 27. a second guide sleeve; 28. a material returning driving mechanism; 29. a guide post; 30. a material returning guide sleeve; 31. a material returning plate; 32. a material returning rod; 33. a limiting column; 34. a limit nut; 35. a synchronous lifter; 36. a coupling; 37. a synchronous tooth column; 38. a connecting rod; 39. a safety protector; 40. a protector main body; 41. a safety lock cylinder; 42. a support pillar; 43. and a second mold locking guide post.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): split type pressure kettle locking mechanism of casting machine

Referring to fig. 1 to 6, the differential pressure casting machine comprises a main machine, a cooling cabinet and a control cabinet;

the main machine comprises two main oil cylinders 1, a bottom plate 11, four upright posts 19, a middle partition plate 12, a movable plate 13, an upper top plate 21, a first mold locking guide post 2, a second mold locking guide post 43, a heat preservation furnace 14, a pressure kettle, a mold, a split pressure kettle locking mechanism and a material returning mechanism, wherein the four upright posts 19 sequentially penetrate through the upper top plate 21, the movable plate 13, the middle partition plate 12 and the bottom plate 11 from top to bottom to form a four-beam four-column type basic framework, the movable plate 13 and the middle partition plate 12 can slide up and down along the upright posts 19, the first mold locking guide post 2 and the second mold locking guide post 43 are vertically supported between the movable plate 13 and the upper top plate 21, and the lower end of the first mold locking guide post 2 and the lower end of the second mold locking; the heat preservation furnace 14 is positioned between the middle partition plate 12 and the bottom plate 11, the heat preservation furnace 14 is used for storing heat preservation metal aluminum liquid, the pressure kettle is positioned between the middle partition plate 12 and the movable plate 13, the pressure kettle is composed of an upper pressure kettle 15 and a lower pressure kettle 16, the mold is positioned in the pressure kettle, the mold is composed of an upper mold 9 and a lower mold 10, the upper pressure kettle 15 and the upper mold 9 are installed on the lower end face of the movable plate 13, and the lower pressure kettle 16 and the lower mold 10 are installed on the upper end face of the middle partition plate 12;

the split type pressure kettle locking mechanism is used for locking a mold and assisting the main oil cylinder 1 to generate mold closing force, the split type pressure kettle locking mechanism consists of a first wedge-shaped locking mechanism 3 and a second wedge-shaped locking mechanism 4, the first wedge-shaped locking mechanism 3 and the second wedge-shaped locking mechanism 4 are arranged in a left-right mirror symmetry mode, the first wedge-shaped locking mechanism 3 comprises a first upper wedge-shaped block 5, a first lower wedge-shaped block 6, a first wedge-shaped block driving mechanism 7, a first guide seat 8, a first sliding block 17 and a first guide sleeve 18, the first guide seat 8 is transversely arranged and fixedly connected onto an upper top plate 21, a shell of the first wedge-shaped block driving mechanism 7 is fixedly connected onto the first guide seat 8, one end of the first sliding block 17 is fixedly connected with a driving end of the first wedge-shaped block driving mechanism 7, and the other end of the first sliding block 17 is fixedly connected with the first upper wedge-shaped block 5, the first wedge block driving mechanism 7 can drive the first sliding block 17 to do linear reciprocating motion in the first guide seat 8, the first guide sleeve 18 is fixedly connected to the lower end face of the first guide seat 8, the first lower wedge block 6 is fixedly connected to the top end of the first mold locking guide post 2, and the first mold locking guide post 2 is arranged in the first guide sleeve 18 in a penetrating mode and is in sliding connection with the first guide sleeve 18; the first upper wedge block 5 and the first lower wedge block 6 are both provided with a joint inclined plane and are matched at the joint inclined plane; when in a mode locking state, the first upper wedge block 5 is matched and attached with the first lower wedge block 6;

the second wedge-shaped locking mechanism 4 comprises a second upper wedge-shaped block 22, a second lower wedge-shaped block 23, a second wedge-shaped block driving mechanism 24, a second guide seat 25, a second sliding block 26 and a second guide sleeve 27, the second guide seat 25 is transversely arranged and fixedly connected to the upper top plate 21, a housing of the second wedge-shaped block driving mechanism 24 is fixedly connected to the second guide seat 25, one end of the second sliding block 26 is fixedly connected with a driving end of the second wedge-shaped block driving mechanism 24, the other end of the second sliding block 26 is fixedly connected with the second upper wedge-shaped block 22, the second wedge-shaped block driving mechanism 24 can drive the second sliding block 26 to linearly reciprocate in the second guide seat 25, the second guide sleeve 25 is fixedly connected to the lower end face of the second mold locking guide seat 25, the second lower wedge-shaped block 23 is fixedly connected to the top end of the second mold locking guide post 43, the second mold locking guide post 43 is inserted into the second guide sleeve 27 and is connected with the second guide sleeve 27 in a sliding manner; the second upper wedge block 22 and the second lower wedge block 23 both have an attaching slope and are matched at the attaching slope; when in a mode locking state, the second upper wedge block 22 is matched and attached with the second lower wedge block 23;

the attaching inclined plane of the first upper wedge block 5 and the attaching inclined plane of the second upper wedge block 22 are in mirror symmetry in the inclined direction;

the first mold locking guide post 2 and the second mold locking guide post 43 are both fixed on the movable plate 13 through a transition block and a flange, the first mold locking guide post 2 and the second mold locking guide post 43 both follow the movable plate 13, the first mold locking guide post 2 performs linear lifting motion along the first guide sleeve 18, and the second mold locking guide post 43 performs linear lifting motion along the second guide sleeve 27.

The first wedge block driving mechanism 7 and the second wedge block driving mechanism 24 are both hydraulic oil cylinders.

The material returning mechanism realizes the demoulding of the upper die after the die opening and comprises two material returning driving mechanisms 28, four guide posts 29, four material returning guide sleeves 30, a material returning plate 31, four material returning rods 32 and two limiting posts 33; the material returning plate 31 is located above the movable plate 13, the two material returning driving mechanisms 28 are fixedly supported on the movable plate 13, the driving end of the material returning driving mechanism 28 is fixedly connected with the material returning plate 31, the four material returning guide sleeves 30 are fixedly connected to the material returning plate 31 and distributed at four corners of the material returning plate 31, the guide posts 29 penetrate through the material returning guide sleeves 30 and are slidably connected with the material returning guide sleeves 30, and the lower ends of the guide posts 29 are fixedly connected with the movable plate 13; the upper part of the material returning rod 32 is fixedly connected to the material returning plate 31, and the lower part of the material returning rod 32 penetrates through the movable plate 13 and is in contact with the mold; the upper part of the limiting column 33 passes through the stripper plate 31 and is fixed by a limiting nut 34, and the lower part of the limiting column 33 is fixed on the movable plate 13 by the limiting nut 34. The material returning driving mechanism 28 is a hydraulic oil cylinder, four supporting columns 42 are arranged on the material returning driving mechanism 28, and the material returning driving mechanism 28 is fixedly supported on the movable plate 13 through the supporting columns 42.

The main frame further comprises a movable plate synchronous limiting mechanism, and the movable plate synchronous limiting mechanism comprises four synchronous lifters 35, eight couplers 36, four synchronous tooth-shaped columns 37 and four connecting rods 38; the synchronous tooth-shaped columns 37 are provided with column teeth, four synchronous tooth-shaped columns 37 are vertically arranged and distributed at four corners of the movable plate 13, the lower ends of the synchronous tooth-shaped columns 37 are fixedly connected with the movable plate 13, and the upper ends of the synchronous tooth-shaped columns 37 penetrate through the synchronous lifter 35; a synchronous lifter 35 is arranged on the upper top plate 21 corresponding to each synchronous tooth-shaped column 37, the synchronous lifter 35 is fixed on the upper top plate 21, a gear which is matched and meshed with the column teeth on the synchronous tooth-shaped column 37 is arranged in the synchronous lifter 35, each synchronous lifter 35 is provided with two output shafts which are perpendicular to each other, each output shaft extends out of the synchronous lifter 35 and is in butt joint with one coupler 36, and the connecting rods 38 are connected among the couplers 36, so that the four synchronous lifters 35 form closed-loop connection and are distributed on the upper top plate 21 in a rectangular shape.

The host machine further comprises a safety protector 39, the safety protector 39 comprises a protector main body 40 and a safety lock column 41, the protector main body 40 is fixed on the upper top plate 21, the upper end of the safety lock column 41 penetrates through the protector main body 40, and the lower end of the safety lock column 41 is fixedly connected with the movable plate 13. The safety protector is produced by SITEMA of Germany. The particular internal construction of the safety guard 39 is well within the skill of the art.

The working process of the implementation is as follows:

when the casting machine needs to carry out die assembly work, the main oil cylinder 1 acts on the movable plate 13 downwards, the movable plate 13 tightly presses and compacts the pressure kettle, and at the moment, a split type pressure kettle locking mechanism is needed to lock the pressure kettle. The piston rods of the first wedge block driving mechanism 7 and the second wedge block driving mechanism 24 extend to drive the respective sliding blocks to move, namely, the first wedge block driving mechanism 7 drives the first sliding block 17 to move inwards (i.e. towards the central direction of the upper top plate 21) in the first guide seat 8, and simultaneously, the second wedge block driving mechanism 24 drives the second sliding block 26 to move inwards (i.e. towards the central direction of the upper top plate 21) in the second guide seat 25; the first upper wedge block 5 moves to be matched and jointed with the first lower wedge block 6 under the driving of the first sliding block 17, the second upper wedge block 22 moves to be matched and jointed with the second lower wedge block 23 under the driving of the second sliding block 26, wedge-shaped locking is realized at the joint inclined plane, and the ascending channels of the first mold locking guide post 2 and the second mold locking guide post 43 are sealed; then, the first wedge driving mechanism 7 and the second wedge driving mechanism 24 stop operating, and the movable plate 13 and the autoclave are locked by the first mold locking guide post 2 and the second mold locking guide post 43. When the locking is required to be released, the piston rod of the first wedge driving mechanism 7 and the piston rod of the second wedge driving mechanism 24 retract to respectively drive the first sliding block 17 and the second sliding block 26 to retract (i.e., retract towards the center direction far away from the upper top plate 21), after the friction force at the joint inclined plane is overcome, the first upper wedge 5, the first lower wedge 6, the second upper wedge 22 and the second lower wedge 23 are separated until the piston rod of the driving mechanism retracts completely to realize the unlocking movement, and the movable plate 13 can drive the follow-up components such as the first mold locking guide pillar 2, the second mold locking guide pillar 43 and the like to freely lift and lower the mold.

When the movable plate 13 and the autoclave are unlocked, the main oil cylinder 1 drives the movable plate 13 to ascend, the upper autoclave 15 and the lower autoclave 16 are separated to realize die opening, and the material returning mechanism starts to perform material returning work. The piston rods of the two material returning driving mechanisms 28 extend out synchronously to drive the material returning plates 31 to descend, meanwhile, the material returning rods 32 fixedly connected with the material returning plates 31 follow up, the material returning rods 32 act on the die, the material returning guide sleeves 30 on the four corners of the material returning plates 31 descend along the guide posts 29 to ensure that the material returning plates 31 run stably, and when the material returning plates 31 are in contact with the limiting nuts 34 on the limiting posts 33, the material returning driving mechanisms 28 stop acting.

In order to ensure that the movable plate 13 does not have large deflection in the lifting process, the embodiment is further provided with a movable plate synchronous limiting mechanism, when the two main oil cylinders 1 drive the movable plate 13 to lift, the synchronous tooth-shaped columns 37 fixed on the movable plate 13 follow the movable plate 13, because the synchronous tooth-shaped columns 37 are meshed with the tooth surfaces of the synchronous lifters 35, and 4 groups of synchronous lifters 35 form closed-loop connection, when small deflection occurs at four corners of the movable plate 13, the synchronous lifters 35 can generate displacement compensation on the movable plate, correct deflection of the movable plate 13, and ensure the stability of the movable plate 13 in the lifting process.

In order to prevent the movable plate 13 from being abnormally dropped, the present embodiment is further provided with a safety protector 39. When the safety protector 39 releases the locking, the movable plate 13 can drive the safety lock column 41 to ascend and descend, and when the safety protector 39 obtains a locking signal, the locking ring inside the protector main body 40 instantly clasps the outer diameter of the safety lock column 41, so that the movable plate 13 is ensured to stop instantly.

Explanation of the examples:

1. based on the consideration of cost, the first wedge block driving mechanism 7, the second wedge block driving mechanism 24 and the material returning driving mechanism 28 of the embodiment are all hydraulic oil cylinders, and the production cost can be reduced by selecting the hydraulic oil cylinders under the condition that the requirement on the action execution precision of large-scale equipment is not high. The above-mentioned driving mechanism can fully adopt other conventional linear driving mechanisms in the prior art, such as a linear motor, and is not limited to the hydraulic oil cylinder of the embodiment.

2. Usually, the centers of the large work plates, i.e., the bottom plate 11, the middle partition plate 12, the movable plate 13 and the upper top plate 21, are on the same longitudinal axis, i.e., the central axis of the casting machine. The "left-right mirror symmetry" in the present embodiment refers to "left and right" in the front view of the casting machine with respect to the front surface of the casting machine, and may be understood as "left and right" on both sides of the central axis on the front surface of the casting machine.

3. The above embodiment is taken as an example of a differential pressure casting machine, but the specific structure of the above embodiment can also be completely adapted to a pressure-regulating casting machine, that is, the pressure-regulating casting machine can adopt the invention points of the invention, such as a split type autoclave locking mechanism, a material returning mechanism, a movable plate synchronous limiting mechanism and a safety protector 39. The pressure-regulating casting machine and the differential pressure casting machine are basically the same in main machine structure, and both comprise a rack, a holding furnace, a pressure kettle, a mold and the like. Therefore, those skilled in the art can replace the differential pressure casting machine in the above embodiments with a pressure-regulated casting machine according to the technical idea of the present invention.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (4)

1. A split type pressure kettle locking mechanism of a casting machine comprises a main oil cylinder (1), a bottom plate (11), a stand column (19), a middle partition plate (12), a movable plate (13), an upper top plate (21), a first mold locking guide post (2), a second mold locking guide post (43), a pressure kettle, a mold and the split type pressure kettle locking mechanism, the upright post (19) sequentially penetrates through the upper top plate (21), the movable plate (13), the middle partition plate (12) and the bottom plate (11) from top to bottom to form a basic frame, the movable plate (13) and the middle partition plate (12) can slide up and down along the upright post (19), the first mold locking guide post (2) and the second mold locking guide post (43) are both vertically supported between the movable plate (13) and the upper top plate (21), and the lower end of the first mold locking guide post (2) and the lower end of the second mold locking guide post (43) are both rigidly connected with the movable plate (13); the pressure kettle is positioned between the middle partition plate (12) and the movable plate (13), and the mold is positioned in the pressure kettle; the method is characterized in that:

the split type pressure kettle locking mechanism is used for locking a mold and assisting the main oil cylinder (1) to generate mold closing force, the split type pressure kettle locking mechanism is composed of a first wedge-shaped locking mechanism (3) and a second wedge-shaped locking mechanism (4), the first wedge-shaped locking mechanism (3) and the second wedge-shaped locking mechanism (4) are arranged in a left-right mirror symmetry manner, the first wedge-shaped locking mechanism (3) comprises a first upper wedge block (5), a first lower wedge block (6), a first wedge-shaped block driving mechanism (7), a first guide seat (8), a first sliding block (17) and a first guide sleeve (18), the first guide seat (8) is transversely arranged and fixedly connected to an upper top plate (21), a shell of the first wedge-shaped block driving mechanism (7) is fixedly connected to the first guide seat (8), one end of the first sliding block (17) is fixedly connected to a driving end of the first wedge-shaped block driving mechanism (7), the other end of the first sliding block (17) is fixedly connected with the first upper wedge block (5), the first wedge block driving mechanism (7) can drive the first sliding block (17) to do linear reciprocating motion in the first guide seat (8), the first guide sleeve (18) is fixedly connected to the lower end face of the first guide seat (8), the first lower wedge block (6) is fixedly connected to the top end of the first mold locking guide pillar (2), and the first mold locking guide pillar (2) penetrates through the first guide sleeve (18) and is in sliding connection with the first guide sleeve (18); the first upper wedge block (5) and the first lower wedge block (6) are provided with joint inclined planes and are matched at the joint inclined planes; when in a mode locking state, the first upper wedge block (5) is matched and attached with the first lower wedge block (6);

the second wedge-shaped locking mechanism (4) comprises a second upper wedge-shaped block (22), a second lower wedge-shaped block (23), a second wedge-shaped block driving mechanism (24), a second guide seat (25), a second sliding block (26) and a second guide sleeve (27), the second guide seat (25) is transversely arranged and fixedly connected to the upper top plate (21), a shell of the second wedge-shaped block driving mechanism (24) is fixedly connected to the second guide seat (25), one end of the second sliding block (26) is fixedly connected with a driving end of the second wedge-shaped block driving mechanism (24), the other end of the second sliding block (26) is fixedly connected with the second upper wedge-shaped block (22), the second wedge-shaped block driving mechanism (24) can drive the second sliding block (26) to do linear reciprocating motion in the second guide seat (25), and the second guide sleeve (27) is fixedly connected to the lower end face of the second guide seat (25), the second lower wedge block (23) is fixedly connected to the top end of a second mold locking guide post (43), and the second mold locking guide post (43) penetrates through a second guide sleeve (27) and is in sliding connection with the second guide sleeve (27); the second upper wedge block (22) and the second lower wedge block (23) are provided with joint inclined planes and are matched at the joint inclined planes; when in a mode locking state, the second upper wedge block (22) is matched and attached with the second lower wedge block (23);

the attaching inclined plane of the first upper wedge block (5) and the attaching inclined plane of the second upper wedge block (22) are in mirror symmetry in the inclined direction.

2. The split autoclave locking mechanism of a casting machine according to claim 1, characterized in that: the casting machine further comprises a safety protector (39), the safety protector (39) comprises a protector main body (40) and a safety lock cylinder (41), the protector main body (40) is fixed on the upper top plate (21), the upper end of the safety lock cylinder (41) penetrates through the protector main body (40), and the lower end of the safety lock cylinder (41) is fixedly connected with the movable plate (13).

3. The split autoclave locking mechanism of a casting machine according to claim 1, characterized in that: the first wedge block driving mechanism (7) and the second wedge block driving mechanism (24) are both hydraulic oil cylinders.

4. The split autoclave locking mechanism of a casting machine according to claim 1, characterized in that: the casting machine is a counter-pressure casting machine or a pressure-regulating casting machine.

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