CN109986058B - Quick mold locking device for casting machine - Google Patents
Quick mold locking device for casting machine Download PDFInfo
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- CN109986058B CN109986058B CN201910419552.9A CN201910419552A CN109986058B CN 109986058 B CN109986058 B CN 109986058B CN 201910419552 A CN201910419552 A CN 201910419552A CN 109986058 B CN109986058 B CN 109986058B
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- material returning
- guide
- locking
- wedge
- wedge block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A quick mode locking device for casting machine, casting machine include master cylinder, well baffle, fly leaf, go up roof, first mode locking guide pillar and second mode locking guide pillar, its characterized in that: the rapid mold locking device comprises a split wedge locking mechanism and a material returning mechanism; the split type wedge locking mechanism consists of a first wedge locking mechanism and a second wedge locking mechanism, and the first wedge locking mechanism and the second wedge locking mechanism are arranged in a left-right mirror symmetry manner; the material returning mechanism comprises a material returning driving mechanism, a guide post, a material returning guide sleeve, a material returning plate, a material returning rod and a limit post; the material returning plate is positioned above the movable plate, the driving end of the material returning driving mechanism is fixedly connected with the material returning plate, the material returning guide sleeve is fixed on the material returning plate, the guide column is arranged in the material returning guide sleeve in a penetrating manner and is in sliding connection with the material returning guide sleeve, and the lower end of the guide column is fixedly connected with the movable plate. The invention realizes quick mold locking and mold closing of the casting machine, improves the production efficiency, ensures the operation safety and has good locking effect during mold locking.
Description
Technical Field
The invention belongs to the technical field of aluminum alloy casting equipment, and particularly relates to a quick mold locking device for a casting machine.
Background
The light weight is one of the most important ways of 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 material has become a necessary choice for updating and updating key component designs 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, differential pressure casting, pressure regulating casting, extrusion casting and the like.
The differential pressure casting is based on low pressure casting equipment, and has sealed cover with compressed gas to make the casting mold under certain pressure. When the molten metal is filled, the pressure of the gas in the holding furnace is higher than the pressure of the gas in the casting mould, and the filling, pressure maintaining and pressurizing of the molten metal are realized like the 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 ensured. The pressure-regulating casting is to put the casting mould and metal in a negative pressure field at the same time, and to introduce compressed air into a holding furnace where the metal melt is located, so that the metal melt fills the cavity in the controllable atmosphere against the gravity direction, and solidifies and crystallizes under the action of a certain pressure. The differential pressure casting machine and the pressure regulating casting machine comprise a frame, a heat preservation furnace, a pressure kettle, a die and the like, wherein the pressure kettle is positioned above the heat preservation furnace, the die is positioned in the pressure kettle, and a die locking guide post is supported between the movable plate and the upper top plate. The lower end of the mode locking guide post is rigidly connected with the movable plate, thereby preventing the pressure kettle and the die from being opened and realizing mode locking.
For a differential pressure casting machine or a pressure regulating casting machine, the pressure born by the upper die plate and the movable plate is large in working, and in order to prevent the movable plate from being jacked off, the top of the pressure kettle is locked by two ways in the prior art: one is directly pressed down on the die locking guide post by a hydraulic oil cylinder, but the mode can lead the die locking guide post to be unstable and twist; the other is to mechanically lock with a locking device, the locking device is positioned between the upper top plate and the top ends of the mold locking guide posts, but the locking device is integrated, namely, the locking device is integrally inserted between the upper top plate and the top ends of the two mold locking guide posts, the top ends of the two mold locking guide posts are not easy to align with locking position points on the locking device, errors are easy to occur when the locking device is installed, whether two mold locking guide posts are simultaneously locked is inconvenient to observe, and even the situation that only one mold locking guide post is locked and the other mold locking guide post is not locked possibly occurs.
Disclosure of Invention
The invention provides a quick mold locking device for a casting machine, which aims to solve the problems of unreliable and unsafe mold locking caused by large span of a movable plate of the existing casting machine with a large mold structure.
In order to achieve the above purpose, the invention adopts the following technical scheme: the quick mold locking device for the 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 column and a second mold locking guide column, 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 movable plate and the middle partition plate can slide up and down along the stand column, the first mold locking guide column and the second mold locking guide column are vertically supported between the movable plate and the upper top plate, and the lower end of the first mold locking guide column and the lower end of the second mold locking guide column are rigidly connected with the movable plate; the rapid die locking device comprises a split wedge locking mechanism and a material returning mechanism;
the split type wedge locking mechanism is used for locking a die and assisting the master cylinder to generate a die clamping force, the split type wedge locking mechanism is composed of a first wedge locking mechanism and a second wedge locking mechanism, the first wedge locking mechanism and the second wedge locking mechanism are arranged in a left-right mirror symmetry mode, the first wedge locking mechanism comprises a first upper wedge block, a first lower wedge block, a first wedge 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 an upper top plate, a shell of the first wedge 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 block driving mechanism, the other end of the first sliding block is fixedly connected with the first upper wedge block, the first wedge block driving mechanism can drive the first sliding block to reciprocate in a straight line 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 die locking mechanism, and the first guide seat is fixedly connected to the top end of the die locking mechanism and fixedly connected to the first guide sleeve in a penetrating mode; the first upper wedge block and the first lower wedge block are provided with a fitting inclined plane and are matched at the fitting inclined plane; in the mode locking state, the first upper wedge block is matched and attached with the first lower wedge block;
the second wedge locking mechanism comprises a second upper wedge block, a second lower wedge block, a second wedge block driving mechanism, a second guide seat, a second sliding block and a second guide sleeve, wherein the second guide seat is transversely arranged and fixedly connected to the upper top plate, a shell of the second wedge block driving mechanism is fixedly connected to the second guide seat, one end of the second sliding block is fixedly connected with a 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 pillar, and the mold locking guide pillar is arranged in the second guide sleeve in a penetrating manner and is in sliding connection with the second guide sleeve; the second upper wedge block and the second lower wedge block are provided with a fitting inclined plane and are matched at the fitting inclined plane; in the mode locking state, the second upper wedge block is matched and attached with the second lower wedge block;
the attaching inclined surface of the first upper wedge block and the attaching inclined surface of the second upper wedge block are in mirror symmetry left and right in the inclined direction;
the material returning mechanism realizes upper die demoulding after die opening, and comprises a material returning driving mechanism, a guide post, a material returning guide sleeve, a material returning plate, a material returning rod and a limit post; the material returning plate is positioned above the movable plate, the material returning driving mechanism is fixedly supported on the movable plate, the driving end of the material returning driving mechanism is fixedly connected with the material returning plate, the material returning guide sleeve is fixedly connected on the material returning plate, the guide column is arranged in the material returning guide sleeve in a penetrating manner and is in sliding connection with the material returning guide sleeve, and the lower end of the guide column is fixedly connected with the movable plate; the upper part of the material returning rod is fixedly connected with the material returning plate, and the lower part of the material returning rod penetrates through the movable plate and contacts with the die; the upper portion of the limiting column penetrates through the material returning plate and is fixed through the limiting nut, and the lower portion of the limiting column is fixed on the movable plate through the limiting nut.
The relevant content explanation in the technical scheme is as follows:
1. in the above scheme, the material returning mechanism specifically comprises two material returning driving mechanisms, four guide posts, four material returning guide sleeves, a material returning plate, four material returning rods and two limit posts; the material returning plate is positioned above the movable plate, the two material returning driving mechanisms are fixedly supported on the movable plate, the driving ends of the material returning driving mechanisms are fixedly connected with the material returning plate, the four material returning guide sleeves are fixedly connected on the material returning plate and distributed on four corners of the material returning plate, and the guide posts penetrate through the material returning guide sleeves and are in sliding connection with the material returning guide sleeves, and the lower ends of the guide posts are fixedly connected with the movable plate; the upper part of the material returning rod is fixedly connected with the material returning plate, and the lower part of the material returning rod penetrates through the movable plate and contacts with the die; the upper portion of the limiting column penetrates through the material returning plate and is fixed through the limiting nut, and the lower portion of the limiting column is fixed on the movable plate through the limiting nut.
The material returning driving mechanism can be a hydraulic cylinder, at least two supporting columns are arranged on the material returning driving mechanism, and the material returning driving mechanism is fixedly supported on the movable plate through the supporting columns.
2. In the above-described aspect, "left-right mirror symmetry" is "left-right" in the view of the front of the casting machine with reference to the front of the casting machine.
3. In the scheme, the casting machine is a differential casting machine or a pressure regulating casting machine.
The invention has the advantages compared with the prior art that:
1. the split type wedge locking mechanism is used for rapidly and safely locking the mold, and adopts split type structural design, namely the split type wedge locking mechanism consists of the first wedge locking mechanism and the second wedge locking mechanism, so that the locking mechanism is more convenient and more accurate in assembly, particularly, 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 left and right in the inclined direction, the wedge locking mechanisms at each side can be more accurately aligned with the top end of the mold locking guide post to lock the mold locking guide post, the locking is more reliable, and the installation and adjustment are more convenient; in addition, the split type structural design is adopted, and the processing cost of parts of the whole wedge-shaped locking mechanism is reduced.
2. The material returning mechanism uses four guide posts as guide, solves the problem that the material returning plate is easy to deviate due to the too large span of the material returning plate, ensures that the movable plate can stably lift and improves the rigidity strength of the material returning rod when the material returning work is executed.
In a word, the casting machine adopts the split wedge-shaped locking mechanism, the improved material returning mechanism, the movable plate synchronous limiting mechanism and the safety protector, so that the quick mould locking and mould closing of the casting machine are realized, the production efficiency is improved, the operation safety is ensured, the locking effect is good during mould locking, and the movable plate is stably lifted. The invention is particularly suitable for a differential pressure casting machine or a pressure regulating casting machine with a large mould structure.
Drawings
FIG. 1 is a schematic view of a casting machine according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the split wedge locking mechanism of the present invention;
fig. 4 is a schematic structural view of the material returning mechanism installed on the movable plate;
FIG. 5 is a top view of the ejector mechanism of the present invention;
fig. 6 is a schematic structural view of the synchronous limiting mechanism of the movable plate of the invention.
In the above figures: 1. a master cylinder; 2. a first mold locking guide post; 3. a first wedge-shaped locking mechanism; 4. a second wedge-shaped locking mechanism; 5. a first upper wedge block; 6. a first lower wedge; 7. a first wedge drive mechanism; 8. the first guide seat; 9. an upper die; 10. a lower die; 11. a bottom plate; 12. a middle partition plate; 13. a movable plate; 14. a holding furnace; 15. loading into a pressure kettle; 16. the autoclave is arranged down; 17. a first slider; 18. a first guide sleeve; 19. a column; 20. a lift tube; 21. an upper top plate; 22. a second upper wedge; 23. a second lower wedge block; 24. a second wedge drive mechanism; 25. the 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 limit column; 34. a limit nut; 35. a synchronous lifter; 36. a coupling; 37. synchronizing the tooth-shaped column; 38. a connecting rod; 39. a safety protector; 40. a protector body; 41. a security lock cylinder; 42. a support column; 43. and a second die locking guide post.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples:
examples: quick die locking device for differential die 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 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 wedge-shaped 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 foundation frame, 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 ends of the first mold locking guide post 2 and the second mold locking guide post 43 are rigidly connected with the movable plate 13; 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 consists of an upper pressure kettle 15 and a lower pressure kettle 16, the mold is positioned in the pressure kettle and consists of an upper mold 9 and a lower mold 10, the upper pressure kettle 15 and the upper mold 9 are arranged on the lower end surface of the movable plate 13, and the lower pressure kettle 16 and the lower mold 10 are arranged on the upper end surface of the middle partition plate 12;
the split type wedge locking mechanism is used for locking a die and assisting in generating a die clamping force of the main oil cylinder 1, the split type wedge locking mechanism is composed of a first wedge locking mechanism 3 and a second wedge locking mechanism 4, the first wedge locking mechanism 3 and the second wedge locking mechanism 4 are arranged in a left-right mirror symmetry mode, the first wedge locking mechanism 3 comprises a first upper wedge block 5, a first lower wedge block 6, a first wedge 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 block driving mechanism 7 is fixedly connected to the first guide seat 8, one end of the first sliding block 17 is fixedly connected with a driving end of the first wedge 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 reciprocate in the first guide seat 8 in a straight line, the first guide sleeve 18 is fixedly connected to the lower end surface of the first guide seat 8, the first guide seat 6 is fixedly connected to the first guide seat 18 in a penetrating manner, and the first guide sleeve 2 is fixedly connected to the first guide seat 2; the first upper wedge block 5 and the first lower wedge block 6 are provided with fitting inclined planes and are matched at the fitting inclined planes; in the mode locking state, the first upper wedge-shaped block 5 is matched and attached with the first lower wedge-shaped block 6;
the second wedge locking mechanism 4 comprises a second upper wedge 22, a second lower wedge 23, a second wedge driving mechanism 24, a second guide seat 25, a second sliding block 26 and a second guide sleeve 27, wherein the second guide seat 25 is transversely arranged and fixedly connected to the upper top plate 21, a shell of the second wedge 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 driving mechanism 24, the other end of the second sliding block 26 is fixedly connected with the second upper wedge 22, the second wedge driving mechanism 24 can drive the second sliding block 26 to do linear reciprocating motion in the second guide seat 25, the second guide sleeve 25 is fixedly connected to the lower end surface of the second guide seat 25, the second lower wedge 23 is fixedly connected to the top end of the second mold locking guide post 43, and the second mold locking guide post 43 penetrates through the second guide sleeve 27 to be in sliding connection with the second guide sleeve 27; the second upper wedge 22 and the second lower wedge 23 each have a fitting slope and are matched at the fitting slope; in the 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-shaped block 5 and the attaching inclined plane of the second upper wedge-shaped block 22 are in mirror symmetry left and right in the inclined direction;
the first mold locking guide post 2 and the second mold locking guide post 43 are fixed on the movable plate 13 through transition blocks and flanges, the first mold locking guide post 2 and the second mold locking guide post 43 follow the movable plate 13, the first mold locking guide post 2 moves linearly up and down along the first guide sleeve 18, and the second mold locking guide post 43 moves linearly up and down along the second guide sleeve 27.
The first wedge block driving mechanism 7 and the second wedge block driving mechanism 24 are specifically hydraulic cylinders.
The material returning mechanism realizes upper die demoulding after 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 limit posts 33; the material returning plate 31 is positioned above the movable plate 13, the two material returning driving mechanisms 28 are fixedly supported on the movable plate 13, the driving ends of the material returning driving mechanisms 28 are fixedly connected with the material returning plate 31, the four material returning guide sleeves 30 are fixedly connected with the material returning plate 31 and distributed on four corners of the material returning plate 31, the guide posts 29 penetrate through the material returning guide sleeves 30 and are in sliding connection 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 contacts with the die; the upper part of the limit post 33 passes through the material returning plate 31 and is fixed by a limit nut 34, and the lower part of the limit post 33 is fixed on the movable plate 13 by the limit nut 34. The material returning driving mechanism 28 is a hydraulic 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 machine also comprises a movable plate synchronous limiting mechanism, wherein 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 four synchronous tooth-shaped columns 37 are vertically arranged and distributed on 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; each synchronous tooth-shaped column 37 is provided with a synchronous lifter 35 corresponding to each synchronous tooth-shaped column 37 on the upper top plate 21, the synchronous lifters 35 are fixed on the upper top plate 21, gears which are in matched engagement with the column teeth on the synchronous tooth-shaped columns 37 are arranged in the synchronous lifters 35, each synchronous lifter 35 is provided with two mutually perpendicular output shafts, each output shaft extends out of the synchronous lifter 35 and is in butt joint with one coupling 36, and the connecting rods 38 are connected between the couplings 36, so that the four synchronous lifters 35 form closed-loop connection and are in rectangular distribution on the upper top plate 21.
The host computer 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 company in Germany. The specific internal construction of the safety protector 39 is prior art.
The movable plate synchronous limiting mechanism is added, and the safety protector 39 is added, so that when the two main oil cylinders 1 are driven to lift, the movable plate 13 is not greatly inclined, when tiny inclination occurs at four corners of the movable plate 13, the movable plate 13 is subjected to displacement compensation by the synchronous limiting mechanism, the inclination amount of the movable plate 13 is corrected, and the stability of the movable plate 13 in the lifting process is ensured; and a safety protector 39 is added to prevent the abnormal falling of the bedplate.
The working process of the implementation comprises the following steps:
when the casting machine needs to perform die assembly, the main oil cylinder 1 acts on the movable plate 13 downwards, the movable plate 13 tightly presses the pressure kettle, and a split wedge 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 (namely, towards the center direction of the upper top plate 21) in the first guide seat 8, and the second wedge block driving mechanism 24 drives the second sliding block 26 to move inwards (namely, towards the center direction of the upper top plate 21) in the second guide seat 25; the first upper wedge block 5 is driven by the first sliding block 17 to move to be matched and jointed with the first lower wedge block 6, the second upper wedge block 22 is driven by the second sliding block 26 to move to be matched and jointed with the second lower wedge block 23, wedge locking is realized at a jointing 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, 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 needs to be released, the piston rods of the first wedge block driving mechanism 7 and the piston rods of the second wedge block driving mechanism 24 retract to respectively drive the first sliding block 17 and the second sliding block 26 to retract (namely retract towards the central direction far away from the upper top plate 21), after the friction force at the joint inclined plane is overcome, the first upper wedge block 5, the first lower wedge block 6, the second upper wedge block 22 and the second lower wedge block 23 are separated until the piston rods of the driving mechanisms fully retract to realize unlocking movement, and the movable plate 13 can drive the follow-up components such as the first mold locking guide post 2, the second mold locking guide post 43 and the like to freely lift.
After the movable plate 13 and the pressure kettle are unlocked, the main oil cylinder 1 drives the movable plate 13 to ascend, the upper pressure kettle 15 and the lower pressure kettle 16 are separated to realize die opening, and the material returning mechanism starts to execute material returning work. The piston rods of the two material returning driving mechanisms 28 extend synchronously to drive the material returning plates 31 to descend, meanwhile, material returning rods 32 fixedly connected with the material returning plates 31 follow, the material returning rods 32 act on the die, material returning guide sleeves 30 on four corners of the material returning plates 31 descend along the guide posts 29, stable operation of the material returning plates 31 is ensured, and when the material returning plates 31 are contacted with limit nuts 34 on the limit posts 33, the material returning driving mechanisms 28 stop acting.
In order to ensure that the movable plate 13 is not greatly inclined in the lifting process, the embodiment is also provided with a movable plate synchronous limiting mechanism, when the two main cylinders 1 drive the movable plate 13 to lift, the synchronous tooth-shaped columns 37 fixed on the movable plate 13 are driven by the synchronous tooth-shaped columns 37, as the tooth surfaces of the synchronous tooth-shaped columns 37 and the synchronous lifters 35 are meshed, and 4 groups of synchronous lifters 35 form closed-loop connection, when micro inclination occurs at four corners of the movable plate 13, the synchronous lifters 35 can generate displacement compensation for the movable plate, correct the inclination amount 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 falling abnormally, the present embodiment is also 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 lift, and when the safety protector 39 obtains a locking signal, the outer diameter of the safety lock column 41 is held tightly instantly by the locking ring inside the protector main body 40, 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 driving mechanism 7, the second wedge driving mechanism 24 and the material returning driving mechanism 28 of the embodiment are all hydraulic cylinders, and the production cost can be reduced by selecting the hydraulic cylinders under the conditions of large-scale equipment and low requirement on action execution precision. The driving mechanism can be any other conventional linear driving mechanism in the prior art, such as a linear motor, and is not limited to the hydraulic cylinder of the present embodiment.
2. Typically, the centers of the large work plates, i.e., the bottom plate 11, the middle partition 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 this embodiment is "left-right" in the front view of the casting machine with reference to the front of the casting machine, and may be understood as "left-right" on both sides of the central axis on the front of the casting machine.
3. The above embodiment is exemplified by a differential pressure casting machine, but the specific structure of the above embodiment can also be fully adapted to a pressure regulating casting machine, that is, the pressure regulating casting machine can adopt the invention of the present invention, such as a split wedge 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 casting machine are approximately the same in the main machine structure, and both comprise a frame, a heat preservation furnace, a pressure kettle, a die and the like, wherein the pressure regulating casting machine is provided with a vacuum system, and the vacuum system is vacuumized, so that the pressure kettle and the heat preservation furnace are initially placed in a negative pressure field. Accordingly, the man skilled in the art can replace the counter-pressure casting machine in the above embodiment with a pressure regulating casting machine according to the technical idea of the present invention.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (2)
1. The utility model provides a quick mode locking device for casting machine, the casting machine includes master cylinder (1), bottom plate (11), stand (19), middle board (12), fly leaf (13), upper roof (21), first mode locking guide pillar (2) and second mode locking guide pillar (43), stand (19) pass upper roof (21), fly leaf (13), middle board (12) and bottom plate (11) in proper order from the top down and form the basic frame, and fly leaf (13) and middle board (12) can slide from top to bottom along stand (19), first mode locking guide pillar (2) and second mode locking guide pillar (43) all vertically support between fly leaf (13) and upper roof (21), the lower extreme of first mode locking guide pillar (2) and the lower extreme of second mode locking guide pillar (43) all with fly leaf (13) rigid connection; the method is characterized in that: the rapid die locking device comprises a split wedge locking mechanism and a material returning mechanism; the split type wedge locking mechanism is used for locking a mold and assisting the master cylinder (1) to generate mold clamping force, the split type wedge locking mechanism is composed of a first wedge locking mechanism (3) and a second wedge locking mechanism (4), the first wedge locking mechanism (3) and the second wedge locking mechanism (4) are arranged in a left-right mirror symmetry mode, the first wedge locking mechanism (3) comprises a first upper wedge block (5), a first lower wedge block (6), a first wedge 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 block driving mechanism (7) is fixedly connected to the first guide seat (8), one end of the first sliding block (17) is fixedly connected with a driving end of the first wedge 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 guide seat (17) to move in a first guide seat (8) in a reciprocating mode, the first guide seat (18) is fixedly connected to the top end face of the first guide seat (8) in a reciprocating mode, the first mold locking guide post (2) is arranged in the first guide sleeve (18) in a penetrating way and is connected with the first guide sleeve (18) in a sliding way; the first upper wedge block (5) and the first lower wedge block (6) are provided with fitting inclined planes and are matched at the fitting inclined planes; in the mode locking state, the first upper wedge block (5) is matched and attached with the first lower wedge block (6);
the second wedge locking mechanism (4) comprises a second upper wedge block (22), a second lower wedge block (23), a second wedge block driving mechanism (24), a second guide seat (25), a second sliding block (26) and a second guide sleeve (27), wherein the second guide seat (25) is transversely arranged and fixedly connected to the upper top plate (21), a shell of the second wedge 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 block driving mechanism (24), the other end of the second sliding block (26) is fixedly connected with the second upper wedge block (22), the second wedge block driving mechanism (24) can drive the second sliding block (26) to do linear reciprocating motion in the second guide seat (25), the second guide sleeve (27) is fixedly connected to the lower end surface of the second guide seat (25), the second lower wedge block (23) is fixedly connected to the top end of a second locking die (43), and the second sliding block (27) is fixedly connected to the second guide sleeve (27); the second upper wedge block (22) and the second lower wedge block (23) are provided with fitting inclined planes and are matched at the fitting inclined planes; in the 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 left and right in the inclined direction;
the material returning mechanism 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 limit posts (33); the material returning plate (31) is positioned above the movable plate (13), the two material returning driving mechanisms (28) are fixedly supported on the movable plate (13), the driving ends of the material returning driving mechanisms (28) are fixedly connected with the material returning plate (31), the four material returning guide sleeves (30) are fixedly connected on the material returning plate (31) and distributed on four corners of the material returning plate (31), and the guide posts (29) are arranged in the material returning guide sleeves (30) in a penetrating mode and are in sliding connection 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 with 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 die; the upper part of the limiting column (33) passes through the material returning plate (31) and is fixed through a limiting nut (34), and the lower part of the limiting column (33) is fixed on the movable plate (13) through the limiting nut (34);
the material returning driving mechanism (28) is a hydraulic cylinder, at least two 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).
2. The rapid mold locking device for a casting machine according to claim 1, wherein: the casting machine is a differential casting machine or a pressure regulating casting machine.
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| CN201910419552.9A CN109986058B (en) | 2019-05-20 | 2019-05-20 | Quick mold locking device for casting machine |
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