Compact type automatic centrifugal casting discharging equipment

Abstract

The utility model discloses a compact type automatic centrifugal casting discharging device which comprises a frame assembly, a centrifugal casting assembly and a discharging assembly. Mounting the assembly; the demolding and discharging unit comprises a plurality of lifting assemblies, a plurality of rotary hanging assemblies and a plurality of discharging assemblies, the lifting assemblies comprise lifting oil cylinders and lifting plates, the rotary hanging assemblies comprise rotary air cylinders and lifting hooks, the discharging assemblies comprise discharging oil cylinders and discharging plates, the lifting plates are connected with the lower ends of first piston rods of the lifting oil cylinders, and the lifting plates are connected with the lower ends of second piston rods of the lifting oil cylinders; the lifting hook is connected with the lower end of a rotating shaft of the rotating air cylinder, the rotating shaft is used for driving the lifting hook to rotate around the center axis of the rotating shaft, the unloading plate is connected with the lower end of a second piston rod of the unloading oil cylinder, and the lifting plate and the lifting hook are staggered around the upper mounting plate; the centrifugal machine platform is arranged in a hole in the middle of the bottom plate, and the lower mounting plate is fixed to the centrifugal machine platform; and a controller. The device is high in production efficiency, simple and compact in structure and low in use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal casting, in particular to a compact automatic centrifugal casting unloading device. Background Art

[0002] Traditional metal centrifugal casting and casting demoulding and unloading equipment usually uses Figure 10 In the combined layout shown, after the centrifugal casting process is completed on the centrifuge 48, the separation between the upper mold and the lower mold of the metal mold casting mold and the demoulding and unloading of the casting are generally carried out by using a crane or a dedicated conveyor line 49 to move the metal mold casting mold as a whole to a casting demoulding and unloading machine 50 located outside the centrifuge.

[0003] The above-mentioned traditional complete set of metal centrifugal casting and casting demoulding and unloading equipment and its molding and unloading method have the following main disadvantages: the transmission distance between centrifugal casting and casting demoulding and unloading processes is long, the transfer time is long, the production efficiency is low, and it cannot meet the needs of large-scale and high-efficiency production; the complete set of metal centrifugal casting and casting demoulding and unloading equipment is composed of multiple separate equipment and conveying devices, the system structure is complex, the reliability is low, the size is large, the floor space is large, and the cost of use is high.

[0004] Therefore, the present invention develops a compact automatic centrifugal casting unloading device to solve the above problems. Utility Model Content

[0005] The utility model proposes a compact automatic centrifugal casting unloading equipment to solve the problems of long transfer time, low production efficiency, complex structure, low reliability, large floor space and high cost of use in existing metal centrifugal casting and casting demoulding and unloading complete sets of equipment.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A compact automatic centrifugal casting unloading device, comprising:

[0008] A frame assembly, the frame assembly comprising a top plate, columns and a bottom plate, the top plate and the bottom plate being supported and connected by the columns;

[0009] A mounting assembly, the mounting assembly comprising an upper mounting plate and a lower mounting plate, the upper mounting plate being used to fix the upper mold of the mold, and the lower mounting plate being used to fix the lower mold of the mold;

[0010] The demoulding and unloading unit comprises several sets of lifting assemblies, several sets of rotating hanging assemblies and several sets of unloading assemblies, the lifting assembly comprises a lifting oil cylinder and a lifting plate, the rotating hanging assembly comprises a rotating cylinder and a hook, the unloading assembly comprises a unloading oil cylinder and a unloading plate, the lifting plate is connected to the lower end of the first piston rod of the lifting oil cylinder, the hook is connected to the lower end of the rotating shaft of the rotating cylinder, and the rotating shaft is used to drive the hook to rotate around the central axis of the rotating shaft, the unloading plate is connected to the lower end of the second piston rod of the unloading oil cylinder, the lifting plate and the hook are staggered around the upper mounting plate, and the upper end surface of the lifting plate can be contacted and supported by the lower end surface of the upper mounting plate under the drive of the lifting oil cylinder, the upper end surface of the hook can be contacted and supported by the lower end surface of the upper mounting plate under the drive of the rotating cylinder, and the lower end surface of the unloading plate can be against the upper end surface of the push plate in the upper die of the mold under the drive of the unloading oil cylinder;

[0011] A casting pipe, the casting pipe is slidably mounted on the top plate, the lower end of the casting pipe sequentially passes through the top plate and the stripper plate and extends to the casting position of the casting mold;

[0012] a centrifuge platform, the centrifuge platform being arranged in the hole in the middle of the bottom plate, and the lower mounting plate being fixed on the centrifuge platform;

[0013] A controller is connected to the centrifuge platform, the lifting cylinder, the rotating cylinder and the unloading cylinder respectively.

[0014] Furthermore, the equipment also includes at least two combined mold pressing and spinning assemblies, and the mold closing pressing and spinning assembly includes a pressing and spinning oil cylinder and a top pressing structure. The pressing and spinning oil cylinder is fixed on the top plate, and the third piston rod of the pressing and spinning oil cylinder is vertically downwardly arranged. The top pressing structure is connected to the lower end of the third piston rod, and the lower end surface of the top pressing structure is used to press the upper end surface of the upper mold of the mold. The pressing and spinning oil cylinder is connected to the controller, and the lower end of the casting pipe passes through the top pressing structure to the casting position of the casting mold and is linked to the top pressing structure.

[0015] Specifically, the top pressure structure includes a first bushing, a support rod, a bolt, an inner bushing, a tapered roller bearing, a top pressure seat, a connecting sleeve, a baffle and a fixed seat. The fixed seat is provided with a fastening hole, and the fastening hole is provided with an inner bushing and a bolt for connecting the fixed seat and the upper die of the mold. The upper surface of the fixed seat is provided with a step hole, the outer ring cylindrical surface of the tapered roller bearing is installed in the step hole, the inner ring cylindrical hole surface of the tapered roller bearing is installed on the step outer cylindrical surface of the top pressure seat, the baffle is installed on the upper surface of the fixed seat by bolts, the baffle is in contact with the upper end face of the outer ring of the tapered roller bearing, and the tapered roller bearing The outer ring is pressed against the fixing seat by the baffle, the front flange of the pressing cylinder is screwed to the top plate by bolts, the third piston rod is screwed to the connecting sleeve and locked with a nut, the connecting sleeve and the top pressure seat are connected by threads and locked with a nut, the lower end of the support rod is installed on the top pressure seat and screwed with bolts, each of the support rods is respectively installed in a corresponding one of the first bushings, the outer cylindrical surface of the support rod and the inner cylindrical surface of the first bushing have a clearance fit, the first bushing is arranged in the support rod mounting hole opened on the top plate, and the casting pipe passes through the top pressure seat, the tapered roller bearing and the fixing seat in sequence.

[0016] Furthermore, the rotating hanging assembly also includes a hook position judge, which includes a first inductive proximity switch, a sensing rod and a sensing ball top. The first inductive proximity switch is arranged on the lower end surface of the top plate at a position close to the hook, and the sensing end face of the first inductive proximity switch is arranged toward the side where the hook is located. One end of the sensing rod is fixed on one side of the hook, and the sensing rod and the first inductive proximity switch are located at the same horizontal height. The sensing rod is arranged horizontally, and the sensing ball top is arranged on the exposed end head of the sensing rod. The first inductive proximity switch is used to externally connect a first sensing circuit. When the first distance between the sensing ball top and the sensing end face of the first inductive proximity switch is less than a preset first distance threshold, the first sensing circuit is closed. When the first distance exceeds the first distance threshold, the first sensing circuit is disconnected, and the first sensing circuit is connected to the controller.

[0017] Furthermore, at least two groups of clamping assemblies are provided on the base plate, and the clamping assemblies include push-pull cylinders and pressure blocks. Several of the push-pull cylinders are fixed on the base plate, and the fourth piston rod of the push-pull cylinder is arranged toward the centrifuge platform. The end of the fourth piston rod is connected to the pressure block. Under the drive of the push-pull cylinder, the lower end surface of the pressure block can press the upper end surface of the edge of the lower mounting plate connected to the lower mold of the mold, and the push-pull cylinder is connected to the controller.

[0018] Furthermore, the clamping assembly also includes a pressure block position judge, which includes a second inductive proximity switch and a sensing boss. The pressure block includes a support and a block. The support is fixed to the base plate. A block channel is provided on the support along the axis of the fourth piston rod. The block is embedded in the block channel. One end of the block is connected to the fourth piston rod. Under the drive of the push-pull cylinder, the lower end surface of the block can press the upper end surface of the edge of the lower mounting plate connected to the lower mold of the mold. The second inductive proximity switch is arranged on the upper part of the support close to the fourth piston rod. The sensing end surface of the second inductive proximity switch is arranged downward. The sensing boss is arranged at the top of the one end of the block. The second inductive proximity switch is used to connect to an external second sensing circuit. When the second distance between the sensing end surface of the second inductive proximity switch and the sensing boss is less than a preset second distance threshold, the second sensing circuit is closed. When the second distance is greater than the second distance threshold, the second sensing circuit is disconnected, and the second sensing circuit is connected to the controller.

[0019] Specifically, the rotating shaft is connected to the hook through a connecting assembly, which includes a transition plate, a key and a liner. A mounting countersunk hole is provided on the top plate, the liner is installed in the mounting countersunk hole and is screwed to the top plate through bolts, the upper end of the hook is matched with the liner, the upper end of the hook is provided with a mounting hole, the transition plate is installed on the upper surface of the top plate and is screwed to the top plate through bolts, a keyway is provided on the hook, the rotating shaft passes through the transition plate, is installed in the mounting hole and is matched with the keyway through the key.

[0020] Furthermore, the mounting assembly also includes at least one set of guide assemblies, and the guide assembly includes a guide sleeve and a guide column. The upper end of the guide sleeve is connected to the lower end surface of the upper mounting plate, and the lower end of the guide column is connected to the upper end surface of the lower mounting plate. The guide sleeve corresponds to the guide column in position. Under the drive of the lifting cylinder, the inner cylindrical surface of the guide sleeve can cooperate with the outer cylindrical surface of the guide column to slide up and down.

[0021] Furthermore, the lifting assembly also includes a top support plate, a guide rod, a second bushing and a connecting sleeve, the second bushing is arranged in the guide hole, the guide rod is vertically passed through the guide hole through the second bushing, the top support plate and the lifting plate are connected through the guide rod, and the first piston rod and the lifting plate are connected through the connecting sleeve.

[0022] Furthermore, the unloading assembly also includes a connecting seat, the lower end of the second piston rod is connected to the connecting seat through a thread, and the connecting seat is screwed to the unloading plate through a nut.

[0023] The beneficial effects of the present invention are:

[0024] 1. The centrifugal casting and unloading processes of parts are centralized, with a high degree of automation, low labor intensity, and high production efficiency, which is conducive to the high-quality, large-scale production of various metal castings. Since the utility model can automatically complete multiple processes such as mold closing, centrifugal casting, mold separation, and casting demoulding and unloading at close range within the same equipment through the control of a controller, the lower mold is fixedly connected to the centrifuge platform and does not move. The separation of the upper mold and the lower mold and the demoulding and unloading of the casting are directly carried out within the same equipment. The upper mold only needs to move up and down in the vertical direction and the moving distance is very short. Therefore, the moving time between the multiple processes of centrifugal casting, mold separation, and casting demoulding and unloading is short, saving more than 70% of the transmission time compared to traditional methods, and achieving high production efficiency.

[0025] 2. The equipment has a compact structure, high reliability, small footprint, and low cost. This utility model places centrifugal casting, mold separation, and casting demoulding and unloading inside the same device. The corresponding execution components of various actions are simple and uniformly installed in the equipment frame assembly. The system is simple and highly reliable. At the same time, the overall dimensions of the entire integrated equipment are greatly reduced. The footprint is more than 50% smaller than the traditional complete set of equipment for online centrifugal casting, offline mold separation, and casting demoulding and unloading, which greatly reduces the cost of production plant and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a schematic diagram of the external structure of the compact automatic centrifugal casting and unloading equipment when equipped with a mold.

[0027] Figure 2 The utility model is a schematic diagram of the positive triaxial measurement of the compact automatic centrifugal casting unloading equipment when the mold is installed.

[0028] Figure 3 yes Figure 1 A full cross-sectional diagram of .

[0029] Figure 4 yes Figure 3 A local enlarged schematic diagram of location I.

[0030] Figure 5 yes Figure 1 Schematic diagram of a local cross-section at point I.

[0031] Figure 6 It is a schematic diagram of the positive triaxial measurement of the compact automatic centrifugal casting unloading equipment of the utility model in the mold closing state.

[0032] Figure 7 yes Figure 6 One of the full cross-sectional diagrams.

[0033] Figure 8 yes Figure 6 The second full cross-sectional diagram of .

[0034] Figure 9 yes Figure 6 Schematic diagram of a local cross-section at point I.

[0035] Figure 10 It is a schematic diagram of the plan layout of a traditional complete set of equipment for metal centrifugal casting and casting demoulding and unloading.

[0036] Figure 11 It is a schematic diagram of the positive triaxial measurement of the compact automatic centrifugal casting unloading equipment of the utility model.

[0037] Figure 12 It is a full cross-sectional schematic diagram of the utility model's compact automatic centrifugal casting unloading equipment.

[0038] In the figure: 1- bottom plate; 2- column; 3- upper mounting plate; 4- hook; 5- top plate; 6- rotating cylinder; 7- pressing and spinning cylinder; 8- casting pipe; 9- unloading cylinder; 10- lifting cylinder; 11- top support plate; 12- guide rod; 13- second bushing; 14- connecting sleeve; 15- lifting plate; 16- upper die of mold; 17- lower die of mold; 18- centrifuge platform; 19- push-pull cylinder; 20- mounting seat; 21- block; 22- support seat; 23- lower mounting plate; 24- guide column; 25- guide sleeve; 26- support rod; 2 7-transition plate; 28-push plate; 29-connecting seat; 30-unloading plate; 31-key; 32-keyway; 33-liner; 34-sensing rod; 35-sensing ball top; 36-first inductive proximity switch; 37-bent plate; 38-sensing boss; 39-second inductive proximity switch; 40-bolt; 41-inner bushing; 42-tapered roller bearing; 43-top pressure seat; 44-connecting pressure sleeve; 45-baffle; 46-fixed seat; 47-mounting plate; 48-centrifuge; 49-transmission line; 50-casting demoulding unloader. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0043] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0044] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0045] The applicant has found in actual production that the traditional complete set of metal centrifugal casting and casting demoulding and unloading equipment and its molding and unloading method have the following main shortcomings:

[0046] 1) The transmission distance between centrifugal casting and casting demoulding and unloading processes is long, the transfer time is long, and the production efficiency is low. After the centrifugal casting process is completed, the upper mold and the lower mold of the metal mold are transferred as a whole to a position outside the centrifuge equipment by a crane or a special conveyor line, and the upper mold and the lower mold are separated and the casting is demoulded and unloaded on a special casting demoulding and unloading machine. Since the entire transfer process requires the following multiple actions: loosening the connection between the lower mold of the metal mold casting mold and the centrifuge platform, the conveyor line grabbing device grabs the metal mold casting mold, the conveyor line transports the mold to the casting demoulding and unloading machine, the casting demoulding and unloading machine positions and connects the mold, the casting demoulding and unloading machine performs demoulding and unloading, the upper mold and the lower mold of the mold are closed in the casting demoulding and unloading machine, and the mold is transferred from the casting demoulding and unloading machine to the centrifuge again to enter the next round of centrifugal casting and casting demoulding and unloading. Therefore, it takes a long time to lift and transfer the mold between multiple stations, which has low production efficiency and cannot meet the needs of large-scale and high-efficiency production.

[0047] 2) Complete sets of metal centrifugal casting and casting demoulding and unloading equipment are composed of multiple separate devices and conveying devices. The system is complex, has low reliability, is bulky, occupies a large area, and has high operating costs. Since independent centrifuges, casting demoulding and unloading machines, and conveyor lines are used for the centrifugal casting and casting demoulding and unloading processes respectively, centrifugal casting, mold separation, casting demoulding, and transfer between equipment are completed through a combination of multiple equipment. The corresponding overall equipment set is large in size. The grasping, transfer, and placement of molds between equipment make the structure and system more complex and less reliable. At the same time, the multiple equipment occupy a large plant area, which is high in operating costs.

[0048] Therefore, in order to overcome the above-mentioned defects of the prior art, the applicant has developed a compact automatic centrifugal casting unloading device and method. The utility model provides a compact automatic centrifugal casting unloading device, comprising:

[0049] A frame assembly, the frame assembly comprising a top plate 5, columns 2 and a bottom plate 1, the top plate 5 and the bottom plate 1 being supported and connected via columns (2);

[0050] Mounting assembly, the mounting assembly includes an upper mounting plate 3 and a lower mounting plate 23, the upper mounting plate 3 is used to fix the upper mold 16, and the lower mounting plate 23 is used to fix the lower mold 17;

[0051] The demoulding and unloading unit includes several groups of lifting components, several groups of rotating hanging components and several groups of unloading components. The lifting component includes a lifting cylinder 10 and a lifting plate 15. The rotating hanging component includes a rotating cylinder 6 and a hook 4. The unloading component includes an unloading cylinder 9 and an unloading plate 30. The lifting plate 15 is connected to the lower end of the first piston rod of the lifting cylinder 10. The hook 4 is connected to the lower end of the rotating shaft of the rotating cylinder 6. The rotating shaft is used to drive the hook 4 to rotate around the central axis of the rotating shaft. The unloading plate 30 is connected to the lower end of the second piston rod of the unloading oil cylinder 9, and the lifting plate 15 and the hook 4 are staggered around the upper mounting plate 3. Under the drive of the lifting oil cylinder 10, the upper end surface of the lifting plate 15 can contact and support the edge of the lower end surface of the upper mounting plate 3. Under the drive of the rotating cylinder 6, the upper end surface of the hook 4 can contact and support the edge of the lower end surface of the upper mounting plate 3. Under the drive of the unloading oil cylinder 9, the lower end surface of the unloading plate 30 can abut against the upper end surface of the push plate (28) in the upper mold 16 of the mold.

[0052] A casting pipe 8, which is slidably mounted on the top plate 5, with the lower end of the casting pipe 8 sequentially passing through the top plate 5 and the stripper plate 30 and extending to the casting position of the casting mold;

[0053] A centrifuge platform 18 is provided in the hole in the middle of the base plate 1 , and the lower mounting plate 23 is fixed on the centrifuge platform 18 ;

[0054] A controller is connected to the centrifuge platform 18, the lifting cylinder 10, the rotating cylinder 6 and the discharge cylinder 9 respectively.

[0055] The device also includes at least two combined mold pressing and spinning assemblies, the mold closing and pressing and spinning assembly includes a pressing and spinning oil cylinder 7 and a top-pressing structure, the pressing and spinning oil cylinder 7 is fixed on the top plate 5, the third piston rod of the pressing and spinning oil cylinder 7 is vertically downwardly arranged, the top-pressing structure is connected to the lower end of the third piston rod, the lower end surface of the top-pressing structure is used to press the upper end surface of the upper mold 16 of the mold, the pressing and spinning oil cylinder 7 is connected to the controller, the lower end of the casting pipe 8 passes through the top-pressing structure to the casting position of the casting mold and is linked to the top-pressing structure. The mold closing and pressing and spinning assembly can prevent spark failure during centrifugal casting.

[0056] The top pressure structure includes a first bushing 13, a support rod 26, a connecting bolt 40, an inner bushing 41, a tapered roller bearing 42, a top pressure seat 43, a connecting pressure sleeve 44, a baffle 45 and a fixed seat 46. The fixed seat 46 is provided with a fastening hole, and the fastening hole is provided with an inner bushing 41 and a connecting bolt 40 for connecting the fixed seat 46 and the upper die 16 of the mold. The upper surface of the fixed seat 46 is provided with a step hole, the outer ring cylindrical surface of the tapered roller bearing 42 is installed in the step hole, and the inner ring cylindrical hole surface of the tapered roller bearing 42 is installed on the step outer cylindrical surface of the top pressure seat 43. The baffle 45 is installed on the upper surface of the fixed seat 46 by bolts, and the baffle 45 is in contact with the upper end face of the outer ring of the tapered roller bearing 42. The outer ring of the sub-bearing 42 is pressed against the fixing seat 46 by the baffle 45, the front flange of the pressing cylinder 7 is screwed to the top plate 5 by bolts, the third piston rod is screwed to the connecting sleeve 44 and locked with a nut, the connecting sleeve 44 and the top pressure seat 43 are connected by threads and locked with a nut, the lower end of the support rod 26 is installed on the top pressure seat 43 and screwed with bolts, each of the support rods 26 is respectively installed in a corresponding one of the first bushings 13, and the outer cylindrical surface of the support rod 26 is clearance-fitted with the inner cylindrical surface of the first bushing 13, the first bushing 13 is arranged in the support rod 26 mounting hole opened on the top plate 5, and the casting pipe 8 passes through the top pressure seat 43, the tapered roller bearing 42 and the fixing seat 46 in sequence.

[0057] The rotating hanging assembly also includes a hook position determiner, which includes a first inductive proximity switch 36, a sensing rod 34 and a sensing ball top 35. The first inductive proximity switch 36 is arranged on the lower end surface of the top plate 5 near the hook 4, and the sensing end surface of the first inductive proximity switch 36 is arranged toward the side where the hook 4 is located. One end of the sensing rod 34 is fixed to one side of the hook 4. The sensing rod 34 and the first inductive proximity switch 36 are located at the same horizontal height. The sensing rod 34 is arranged horizontally, and the sensing ball top 35 is arranged on the exposed end of the sensing rod 34. The first inductive proximity switch 36 is used to be externally connected to a first sensing circuit. When the first distance between the sensing ball top 35 and the sensing end surface of the first inductive proximity switch 36 is less than a preset first distance threshold, the first sensing circuit is closed. When the first distance exceeds the first distance threshold, the first sensing circuit is disconnected, and the first sensing circuit is connected to the controller.

[0058] At least two groups of clamping assemblies are provided on the base plate 1, and the clamping assemblies include a push-pull cylinder 19 and a pressure block 21. Several of the push-pull cylinders 19 are fixed on the base plate 1, and the fourth piston rod of the push-pull cylinder 19 is arranged toward the centrifuge platform. The end of the fourth piston rod is connected to the pressure block 21. Under the drive of the push-pull cylinder 19, the lower end surface of the pressure block 21 can press the upper end surface of the edge of the lower mounting plate 23 connected to the lower mold 17 of the mold. The push-pull cylinder 19 is connected to the controller.

[0059] The clamping assembly also includes a clamping block position judgement device, which includes a second inductive proximity switch 39 and a sensing boss 38. The clamping block includes a support 22 and a block 21. The support 22 is fixed on the base plate 1. A block channel is provided on the support 22 along the axis of the fourth piston rod. The block 21 is embedded in the block channel. One end of the block 21 is connected to the fourth piston rod. Under the drive of the push-pull cylinder 19, the lower end face of the block 21 can press the upper end face of the lower mounting plate (23) connected to the lower mold 17 of the mold. The second inductive proximity switch 39 and the sensing boss 38 are connected. 9 is arranged on the upper part of the support 22 close to the fourth piston rod side, the sensing end face of the second inductive proximity switch 39 is arranged downward, and the sensing boss 38 is arranged at the top of the one end of the block 21. The second inductive proximity switch 39 is used to externally connect a second sensing circuit. When the second distance between the sensing end face of the second inductive proximity switch 39 and the sensing boss 38 is less than a preset second distance threshold, the second sensing circuit is closed. When the second distance is greater than the second distance threshold, the second sensing circuit is disconnected, and the second sensing circuit is connected to the controller.

[0060] The rotating shaft is connected to the hook 4 through a connecting assembly, which includes a transition plate 27, a key 31 and a liner 33. A mounting countersunk hole is provided on the top plate 5. The liner 33 is installed in the mounting countersunk hole and is screwed to the top plate 5 through bolts. The upper end of the hook 4 is cooperatively connected with the liner 33. The upper end of the hook 4 is provided with a mounting hole. The transition plate 27 is installed on the upper surface of the top plate 5 and is screwed to the top plate 5 through bolts. A keyway 32 is provided on the hook 4. The rotating shaft passes through the transition plate 27 and is installed in the mounting hole and is connected to the keyway 32 through the key 31.

[0061] The mounting assembly also includes at least one set of guide assemblies, which include a guide sleeve 25 and a guide column 24. The upper end of the guide sleeve 25 is connected to the lower end surface of the upper mounting plate 3, and the lower end of the guide column 24 is connected to the upper end surface of the lower mounting plate 23. The guide sleeve 25 corresponds to the guide column 24 in position. Under the drive of the lifting cylinder 10, the inner cylindrical surface of the guide sleeve 25 can be fitted on the outer cylindrical surface of the guide column 24 to slide up and down.

[0062] The lifting assembly also includes a top support plate 11, a guide rod 12, a second bushing 13 and a connecting sleeve 14. The top support plate 11 is arranged above the top plate 5. A guide hole is provided on the top plate 5. The second bushing 13 is arranged in the guide hole. The guide rod 12 is vertically inserted into the guide hole through the second bushing 13. The top support plate 11 is connected to the lifting plate 15 through the guide rod 12, and the first piston rod is connected to the lifting plate 15 through the connecting sleeve 14.

[0063] The discharge assembly further includes a connecting seat 29 , the lower end of the second piston rod is connected to the connecting seat 29 via a threaded connection, and the connecting seat 29 is screwed to the discharge plate 30 via a nut.

[0064] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings.

[0065] Combine Figure 1 、 Figure 2 、 Figure 11 and Figure 12 As shown, the compact automatic centrifugal casting unloading equipment of the present invention includes: a frame assembly formed by connecting a base plate 1, columns 2, and a top plate 5, which serves as the assembly and installation foundation of the entire equipment. The base plate 1 is installed on the equipment foundation on the factory floor surface, the centrifuge platform 18 is installed in the pit in the middle of the large circular hole of the base plate 1, the lower mounting plate 23 is installed on the upper surface of the centrifuge platform 18 and is securely bolted. The columns 2 are installed between the base plate 1 and the top plate 5 and are securely bolted with nuts. Preferably, the base plate 1 and the top plate 5 are square plates.

[0066] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown, in some embodiments, the compact automatic centrifugal casting unloading equipment of the present invention includes: a lifting assembly composed of a lifting cylinder 10, a top support plate 11, a guide rod 12, a second bushing 13, a connecting sleeve 14, and a lifting plate 15. Through the extension or retraction of the piston rod of the lifting cylinder 10, the lifting assembly can realize the action of the upper mold 16 downwardly closing the mold with the lower mold 17 or the action of the upper mold 16 upwardly lifting the mold. During the closing process, the outer cylindrical surface of the guide column 24 on the lower mold 17 and the inner cylindrical surface of the guide sleeve 25 on the upper mold 16 are always in a clearance sliding fit state and ensure good guiding and positioning effect; the lifting cylinder 10 adopts a front flange installation method, and the front flange of the lifting cylinder 10 is screwed firmly to the top plate 5 by bolts, and the lifting The external thread at the front end of the piston rod of the oil cylinder 10 is screwed to the corresponding threaded hole of the connecting sleeve 14 and locked with a nut; the guide rod 12 is installed between the top support plate 11 and the lifting plate 15 and is firmly screwed with bolts at both ends to form a whole. Each guide rod 12 is respectively installed in a second bushing 13, and a clearance fit is adopted between the outer cylindrical surface of the guide rod 12 and the inner cylindrical surface of the second bushing 13. The outer cylindrical surface of the second bushing 13 is installed in the corresponding mounting hole of the top plate 5, and the outer cylindrical surface of the second bushing 13 is installed with the top plate 5. The holes are tightly connected by interference fit. The inner cylindrical surface of the second bushing 13 is provided with a plurality of annular oil storage grooves filled with grease to ensure that the guide rod 12 is well lubricated and reduces friction and wear when it moves back and forth in the inner hole of the second bushing 13. The connecting sleeve 14 is installed in the mounting hole of the lifting plate 15 and is firmly locked with a nut. When the upper mold 16 and the lower mold 17 are in the mold closing state and after the centrifugal casting is completed, the piston rod of the lifting cylinder 10 retracts and moves upward, thereby driving the lifting plate 15 through the connecting sleeve 14. It moves upward and is guided by the outer cylindrical surface of the guide rod 12 sliding in the hole of the second bushing 13. When the upper surface of the lifting plate 15 contacts the lower surface of the upper mounting plate 3, the retraction pulling force of the lifting cylinder 10 will drive the upper mounting plate 3 and the upper mold 16 of the mold to move upward, realizing the separation between the upper mold 16 and the lower mold 17 of the mold, thereby completing the mold parting action. The piston rod of the lifting cylinder 10 continues to retract and move upward to lift the lower surface of the upper mounting plate 3 to above the hanging bearing surface of the hook 4, and then stops moving and enters the state ready for unloading.

[0067] like Figure 2 As shown, in some embodiments, the compact automatic centrifugal casting unloading equipment of the present invention includes three sets of lifting components.

[0068] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, in some embodiments, the compact automatic centrifugal casting unloading equipment of the present invention includes: a rotating hanging assembly consisting of a hook 4, a rotating cylinder 6, a transition plate 27, a key 31 and a liner 33. The liner 33 adopts a structure split in half to facilitate the installation and disassembly of the hook 4. The liner 33 is installed in the mounting countersunk hole of the top plate 5 and is firmly screwed with bolts; the transition plate 27 is installed on the upper surface of the top plate 5 and is firmly screwed with bolts, the rotating cylinder 6 is installed on the upper surface of the transition plate 27 and is firmly screwed with bolts, the rotating shaft of the rotating cylinder 6 is installed in the mounting hole of the hook 4 and is matched with the keyway 32 on the hook 4 through the key 31. When the rotating shaft of the rotating cylinder 6 rotates, it will drive the hook 4 to rotate synchronously; when the upper mold 16 of the mold moves up and down and the equipment is centrifugally casting, the rotating cylinder 6 is at 0 °In the initial position, the side of the hook 4 is in the tangential direction of the rotation center, which can avoid the upper mounting plate 3 from rubbing and interfering with the hook 4 when moving up and down; when the equipment completes the centrifugal casting of the parts and is ready to demold and unload the casting, the piston rod of the lifting cylinder 10 retracts and moves upward, and the lifting plate 15 lifts the lower surface of the upper mounting plate 3 to above the hanging load-bearing surface of the hook 4. At this time, the rotating axis of the rotating cylinder 6 rotates 90° and drives the hook 4 to rotate synchronously through the key 31. At this time, the side of the hook 4 is in the normal direction of the rotation center, and the hanging load-bearing surface of the hook 4 is directly below the upper mounting plate 3, entering the hanging preparation state; then the piston rod of the lifting cylinder 10 extends and moves downward, driving the upper mounting plate 3 to move downward until it contacts the hanging load-bearing surface of the hook 4, and the equipment enters the unloading preparation state.

[0069] like Figure 2 As shown, in some embodiments, the compact automatic centrifugal casting unloading equipment of the present invention includes three sets of rotating hanging components.

[0070] like Figure 3 As shown, the compact automatic centrifugal casting unloading equipment of the present invention comprises: an unloading assembly consisting of a unloading cylinder 9, a connecting seat 29, and a unloading plate 30. The unloading cylinder 9 adopts a front flange installation method and is installed on the upper surface of the top plate 5. The front flange of the unloading cylinder 9 is screwed firmly to the top plate 5 by bolts, and the external thread at the front end of the piston rod of the unloading cylinder 9 is screwed to the corresponding threaded hole of the connecting seat 29 and locked with a nut. The connecting seat 29 is installed in the mounting hole of the unloading plate 30 and is screwed and locked firmly with a nut; when the equipment enters the unloading preparation state, the piston rod of the unloading cylinder 9 extends and moves downward, driving the connecting seat 29 and the unloading plate 30 to move downward. When the lower surface of the unloading plate 30 contacts the upper surface of the push plate 28 of the upper mold 16 of the mold, the thrust of the unloading cylinder 9 will drive the ejector parts in the upper mold 16 of the mold through the push plate 28 to push the casting downward and break away from the close contact with the mold, completing the demoulding and unloading process of the casting.

[0071] like Figure 2As shown, the compact automatic centrifugal casting unloading equipment of the utility model includes three groups of unloading components.

[0072] Combine Figure 2 、 Figure 5 and Figure 9 As shown, the utility model compact automatic centrifugal casting unloading equipment includes: a pressing assembly consisting of a push-pull cylinder 19, a mounting seat 20, a pressure block 21 and a support 22; the lower surface of the mounting seat 20 is mounted on the base plate 1 and is firmly screwed by bolts, the front end surface of the push-pull cylinder 19 is mounted on the vertical plate of the mounting seat 20 and is firmly screwed by bolts, the piston rod of the push-pull cylinder 19 is fastened to the pressure block 21 through a screw and a nut, the lower surface of the support 22 is mounted on the base plate 1 and is firmly screwed by bolts and locating pins, the pressure block 21 is installed in the square hole of the support 22 and the fittings between the two are fixed. The surfaces form a clearance fit to ensure that the pressure block 21 can slide smoothly back and forth in the square hole of the support 22; when the piston rod of the push-pull cylinder 19 is extended, it will push the pressure block 21 to move forward, and the pressure block 21 will eventually stay above the lower mounting plate 23 and can bear the mold separation force transmitted when the upper mold 16 and the lower mold 17 of the mold are separated; when the piston rod of the push-pull cylinder 19 is retracted, it will pull the pressure block 21 to move backward, and the front end face of the pressure block 21 will retract into the square hole of the support 22. At this time, the pressure block 21 has no contact with the lower mounting plate 23 and will not interfere with the subsequent rotational movement of the lower mounting plate 23 during centrifugal casting.

[0073] like Figure 8The utility model is a compact automatic centrifugal casting unloading device, comprising: a mold clamping and pressing and spinning assembly consisting of a pressing and spinning cylinder 7, a bushing 13, a support rod 26, a bolt 40, a bushing 41, a tapered roller bearing 42, a top pressing seat 43, a connecting pressing sleeve 44, a baffle 45 and a fixed seat 46; the fixed seat 46 is fastened to the upper mold 16 of the mold through the bushing 41 and the bolt 40, and the outer cylindrical surface of the tapered roller bearing 42 is installed in the mounting hole of the fixed seat 46. The inner ring cylindrical hole surface of the tapered roller bearing 42 is installed on the outer cylindrical surface of the top pressure seat 43 step, and the baffle 45 contacts the end face of the outer ring of the tapered roller bearing 42. The baffle 45 is installed on the upper surface of the fixed seat 46 by bolts. The baffle 45 presses the outer ring of the tapered roller bearing 42 into the fixed seat 46; the pressure-spinning oil cylinder 7 adopts the front flange installation method, and the front flange of the pressure-spinning oil cylinder 7 is firmly screwed to the top plate 5 by bolts. The front end external thread of the piston rod of the pressure-spinning oil cylinder 7 is connected to the connecting sleeve The corresponding threaded holes of 44 are screwed and locked with nuts, and the connecting sleeve 44 and the top pressure seat 43 are threadedly connected and firmly locked with nuts; the support rod 26 is installed on the top pressure seat 43 and is screwed firmly with bolts at the lower end. Each support rod 26 is respectively installed in a bushing 13, and a clearance fit is adopted between the outer cylindrical surface of the support rod 26 and the inner cylindrical surface of the bushing 13, and the outer cylindrical surface of the bushing 13 is installed in the corresponding mounting hole of the top plate 5; when the equipment is ready for centrifugal casting, the piston rod of the pressing cylinder 7 extends and moves downward to drive the connecting sleeve 44 and the top pressure seat 43 to move downward. When the lower surface of the top pressure seat 43 is pressed against the upper surface of the inner ring of the tapered roller bearing 42, the thrust of the pressing cylinder 7 will be transmitted to the fixed seat 46 and the upper mold 16 of the mold in sequence, pressing the lower surface of the upper mold 16 of the mold against the upper surface of the lower mold 17 of the mold to form a clamping force, thereby preventing the failure of the molten metal from splashing out of the mold cavity during centrifugal casting.

[0074] like Figure 4 As shown, the compact automatic centrifugal casting unloading equipment of the present invention includes: a bent plate 37 is installed on the lower surface of the top plate 5 by screws, a first inductive proximity switch 36 is installed in the mounting hole of the bent plate 37 and is screwed firmly by a nut, a sensing rod 34 is installed in the mounting threaded hole of the hook 4 and is screwed firmly by a nut, and a sensing ball top 35 is provided at the exposed end of the sensing rod 34, the diameter of the sensing ball top 35 is 1mm to 2mm, and the distance between the sensing ball top 35 and the sensing end face of the first inductive proximity switch 36 is 1mm to 2mm. At this time, the first sensing circuit is turned on and judged to be in a closed state. When the rotary cylinder 6 drives the hook 4 to rotate, the sensing ball top 35 will gradually move away from the sensing end face of the first inductive proximity switch 36. When the distance between the sensing ball top 35 and the sensing end face of the first inductive proximity switch 36 exceeds 3mm, the first sensing circuit is disconnected and judged to be in an open state, thereby judging different positions of the hook 4;

[0075] Combine Figure 5and Figure 9 As shown, the mounting plate 47 is mounted on the side of the support 22 by screws, and the second inductive proximity switch 39 is mounted in the mounting hole of the mounting plate 47 and is firmly screwed with nuts. A sensing boss 38 is provided at one end of the pressure block 21. When the piston rod of the push-pull cylinder 19 extends and drives the pressure block 21 to move forward to the front dead point, the sensing end face of the second inductive proximity switch 39 is directly above the sensing boss 38, and the distance between the sensing end face of the second inductive proximity switch 39 and the sensing boss 38 is 1mm to 2mm. At this time, the second sensing circuit is turned on and judged to be in a closed state. When the piston rod of the push-pull cylinder 19 retracts and drives the pressure block 21 to move backward, the distance between the sensing end face of the second inductive proximity switch 39 and the sensing boss 38 exceeds 3mm, and the second sensing circuit is disconnected and judged to be in a disconnected state. The controller judges whether the hook 4 and the pressure block 21 are in the expected position according to the closed state and the disconnected state of the second sensing circuit and determines whether to continue the subsequent action or stop the subsequent action and alarm.

[0076] In some embodiments, the compact automatic centrifugal casting unloading method of the present invention includes at least the following steps:

[0077] S1: After placing a sand core in the lower mold 17 of the mold in the open state, press the start button on the controller, and the first piston rod of the lifting cylinder 10 retracts and moves upward by 20 mm, so that the upper mold 16 and the upper mounting plate 3 are lifted off the load-bearing surface of the hook 4;

[0078] S2: The rotary cylinder 6 drives the hook 4 to rotate 90 degrees, so that the hook 4 can avoid interference with the upper die 16 and the upper mounting plate 3 when they move downward;

[0079] S3: The first piston rod of the lifting cylinder 10 extends and moves downward, driving the upper mold 16 to move downward until the upper mold 16 contacts the parting surface of the lower mold 17, completing the mold closing action; the first piston rod of the lifting cylinder 10 continues to extend and move downward to the bottom dead center, at which time the upper surface of the lifting plate 15 is separated from the lower surface of the upper mounting plate 3;

[0080] S4: During the closing process of the upper mold 16 and the lower mold 17, the piston rod of the cylinder at the pressing block 21 retracts and drives the pressing block to be withdrawn, so that the pressing block is separated from the upper surface of the lower mounting plate 23;

[0081] S5: After the mold is closed and the pressing block is withdrawn, the centrifuge platform 18 starts to rotate and accelerates to the target speed and then rotates at a constant speed;

[0082] S6: The third piston rod of the pressing and rotating oil cylinder 7 moves downward during the mold closing process. After the mold closing is completed, the third piston rod of the pressing and rotating oil cylinder 7 extends to apply thrust to press the upper mold 16 tightly against the lower mold 17;

[0083] S7: After the molten metal is poured into the casting pipe 8 and enters the mold cavity, the centrifuge platform 18 continues to rotate for 3 to 5 minutes and then decelerates until it stops rotating. The casting pipe 8 is a pouring cup;

[0084] S8: After cooling the upper mold 16 and the lower mold 17 to the target temperature through water, the piston rod of the cylinder at the pressing block 21 extends and drives the pressing block to be pushed out, so that the pressing block contacts the upper surface of the lower mounting plate 23;

[0085] S9: The first piston rod of the lifting cylinder 10 retracts and moves upward, driving the upper mold 16 to separate from the lower mold 17, completing the separation between the upper mold 16 and the lower mold 17;

[0086] S10: The first piston rod of the lifting cylinder 10 continues to retract and move upward until the lower surface of the upper mounting plate 3 is 20 mm higher than the load-bearing surface of the hook 4;

[0087] S11: The rotary cylinder 6 drives the hook 4 to rotate 90 degrees in the opposite direction, so that the load-bearing surface of the hook 4 is directly below the upper mounting plate 3;

[0088] S12: The first piston rod of the lifting cylinder 10 extends and moves downward until the lower surface of the upper mounting plate 3 contacts the load-bearing surface of the hook 4;

[0089] S13: The second piston rod of the unloading cylinder 9 extends and moves downward, the unloading plate 30 contacts the push plate 28 and pushes the ejector rod in the upper mold 16 to complete the demoulding and unloading of the casting; after cleaning, coating and placing the sand core, the next round of centrifugal casting and casting demoulding and unloading work begins;

[0090] S14: The movement, position control and abnormal working conditions of the above-mentioned oil cylinder and air cylinder can be controlled, monitored and alarmed by an external gas-liquid control system. A second inductive proximity switch 39 is provided at the pressing block 21 to prevent the pressing block from not being in the ejection position for the mold separation process; a first inductive proximity switch 36 is provided at the top hook 4 to prevent the hook 4 from not being in the hanging position for the unloading process; when one of the proximity switches is determined to be abnormal, the equipment stops running and alarms.

[0091] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A compact automatic centrifugal casting unloading equipment, characterized in that: include: A frame assembly, the frame assembly comprising a top plate (5), columns (2) and a bottom plate (1), the top plate (5) and the bottom plate (1) being supported and connected via the columns (2); A mounting assembly, the mounting assembly comprising an upper mounting plate (3) and a lower mounting plate (23), the upper mounting plate (3) being used to fix the upper mold (16), and the lower mounting plate (23) being used to fix the lower mold (17); A demoulding and unloading unit, comprising a plurality of lifting assemblies, a plurality of rotating hanging assemblies and a plurality of unloading assemblies, wherein the lifting assemblies comprise a lifting cylinder (10) and a lifting plate (15), the rotating hanging assemblies comprise a rotating cylinder (6) and a hook (4), the unloading assemblies comprise an unloading cylinder (9) and an unloading plate (30), the lifting plate (15) being connected to the lower end of the first piston rod of the lifting cylinder (10), the hook (4) being connected to the lower end of the rotating shaft of the rotating cylinder (6), the rotating shaft being used to drive the hook (4) to rotate around the central axis of the rotating shaft, and the unloading plate (30) is connected to the lower end of the second piston rod of the unloading cylinder (9), the lifting plate (15) and the hook (4) are staggered around the upper mounting plate (3), the upper end surface of the lifting plate (15) can be in contact with the edge of the lower end surface of the upper mounting plate (3) under the drive of the lifting cylinder (10), the upper end surface of the hook (4) can be in contact with the edge of the lower end surface of the upper mounting plate (3) under the drive of the rotating cylinder (6), and the lower end surface of the unloading plate (30) can be in contact with the upper end surface of the push plate (28) in the upper mold (16) of the mold under the drive of the unloading cylinder (9); A casting pipe (8), wherein the casting pipe (8) is slidably mounted on the top plate (5) up and down, and the lower end of the casting pipe (8) sequentially passes through the top plate (5) and the stripper plate (30) and extends to the casting position of the casting mold; a centrifuge platform (18), the centrifuge platform (18) being arranged in a hole in the middle of the base plate (1), and the lower mounting plate (23) being fixed on the centrifuge platform (18); A controller is connected to the centrifuge platform (18), the lifting cylinder (10), the rotating cylinder (6) and the discharge cylinder (9) respectively.

2. A compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: The device also includes at least two combined mold pressing and spinning assemblies, and the mold pressing and spinning assembly includes a pressing and spinning oil cylinder (7) and a top pressing structure. The pressing and spinning oil cylinder (7) is fixed on the top plate (5), and the third piston rod of the pressing and spinning oil cylinder (7) is vertically downwardly arranged. The top pressing structure is connected to the lower end of the third piston rod. The lower end surface of the top pressing structure is used to press the upper end surface of the upper mold (16) of the mold. The pressing and spinning oil cylinder (7) is connected to the controller. The lower end of the casting pipe (8) passes through the top pressing structure to the casting position of the casting mold and is linked to the top pressing structure.

3. A compact automatic centrifugal casting unloading equipment according to claim 2, characterized in that: The top pressure structure includes a first bushing, a support rod (26), a connecting bolt (40), an inner bushing (41), a tapered roller bearing (42), a top pressure seat (43), a connecting pressure sleeve (44), a baffle (45) and a fixed seat (46), wherein the fixed seat (46) is provided with a fastening hole, wherein the inner bushing (41) and the connecting bolt (40) for connecting the fixed seat (46) and the upper die (16) of the mold are provided in the fastening hole, and the upper surface of the fixed seat (46) is provided with a step hole, wherein the outer ring cylindrical surface of the tapered roller bearing (42) is installed in the step hole, and the inner ring cylindrical hole surface of the tapered roller bearing (42) is installed on the step outer cylindrical surface of the top pressure seat (43), and the baffle (45) is installed on the upper surface of the fixed seat (46) by bolts, and the baffle (45) contacts the upper end surface of the outer ring of the tapered roller bearing (42). The outer ring of the tapered roller bearing (42) is pressed into the fixed seat (46) through the baffle (45), the front flange of the pressure-rotating oil cylinder (7) is screwed to the top plate (5) through bolts, the third piston rod is screwed to the connecting sleeve (44) and locked with a nut, the connecting sleeve (44) and the top pressure seat (43) are connected by threads and locked with a nut, the lower end of the support rod (26) is installed on the top pressure seat (43) and screwed by bolts, each of the support rods (26) is installed in a corresponding first bushing, the outer cylindrical surface of the support rod (26) and the inner cylindrical surface of the first bushing are clearance-matched, the first bushing is set in the support rod (26) mounting hole opened on the top plate (5), and the casting pipe (8) passes through the top pressure seat (43), the tapered roller bearing (42) and the fixed seat (46) in sequence.

4. The compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: The rotary hanging assembly further includes a hook position determiner, which includes a first inductive proximity switch (36), a sensing rod (34) and a sensing ball top (35), wherein the first inductive proximity switch (36) is arranged on the lower end surface of the top plate (5) near the hook (4), the sensing end surface of the first inductive proximity switch (36) is arranged toward the side where the hook (4) is located, one end of the sensing rod (34) is fixed to one side of the hook (4), and the sensing rod (34) and the first inductive proximity switch (36) are in contact with each other. Located at the same horizontal height, the sensing rod (34) is horizontally arranged, the sensing ball top (35) is arranged on the exposed end of the sensing rod (34), the first inductive proximity switch (36) is used to be externally connected to a first sensing circuit, when a first distance between the sensing ball top (35) and the sensing end surface of the first inductive proximity switch (36) is less than a preset first distance threshold, the first sensing circuit is closed, when the first distance exceeds the first distance threshold, the first sensing circuit is disconnected, and the first sensing circuit is connected to the controller.

5. The compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: At least two groups of clamping assemblies are provided on the base plate (1), and the clamping assemblies include a push-pull cylinder (19) and a pressure block. Several push-pull cylinders (19) are fixed on the base plate (1), and the fourth piston rod of the push-pull cylinder (19) is arranged toward the centrifuge platform (18). The end of the fourth piston rod is connected to the pressure block. Under the drive of the push-pull cylinder (19), the lower end surface of the pressure block can press the upper end surface of the edge of the lower mounting plate (23) connected to the lower mold (17) of the mold, and the push-pull cylinder (19) is connected to the controller.

6. The compact automatic centrifugal casting unloading equipment according to claim 5, characterized in that: The clamping assembly also includes a clamping block position judgement device, which includes a second inductive proximity switch (39) and a sensing boss (38). The clamping block includes a support (22) and a block (21). The support (22) is fixed on the base plate (1). A block channel is provided on the support (22) along the axis of the fourth piston rod. The block (21) is embedded in the block channel. One end of the block (21) is connected to the fourth piston rod. Under the drive of the push-pull cylinder (19), the lower end face of the block (21) can press the upper end face of the edge of the lower mounting plate (23) connected to the lower mold (17) of the mold. The second inductive proximity switch (39) and the sensing boss (38) are connected. The proximity switch (39) is arranged on the upper part of the support (22) near the side of the fourth piston rod, the sensing end face of the second inductive proximity switch (39) is arranged downward, the sensing boss (38) is arranged on the top of the one end of the block (21), and the second inductive proximity switch (39) is used to connect to an external second sensing circuit. When the second distance between the sensing end face of the second inductive proximity switch (39) and the sensing boss (38) is less than a preset second distance threshold, the second sensing circuit is closed, and when the second distance is greater than the second distance threshold, the second sensing circuit is disconnected, and the second sensing circuit is connected to the controller.

7. The compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: The rotating shaft is connected to the hook (4) through a connecting assembly, and the connecting assembly includes a transition plate (27), a key (31) and a liner (33). A mounting countersunk hole is provided on the top plate (5). The liner (33) is installed in the mounting countersunk hole and is screwed to the top plate (5) by bolts. The upper end of the hook (4) is connected to the liner (33). The upper end of the hook (4) is provided with a mounting hole. The transition plate (27) is installed on the upper surface of the top plate (5) and is screwed to the top plate (5) by bolts. A keyway (32) is provided on the hook (4). The rotating shaft passes through the transition plate (27), is installed in the mounting hole, and is connected to the keyway (32) by the key (31).

8. The compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: The mounting assembly further comprises at least one guide assembly, wherein the guide assembly comprises a guide sleeve (25) and a guide column (24), wherein the upper end of the guide sleeve (25) is connected to the lower end surface of the upper mounting plate (3), and the lower end of the guide column (24) is connected to the upper end surface of the lower mounting plate (23), and the positions of the guide sleeve (25) and the guide column (24) correspond to each other. Under the drive of the lifting cylinder (10), the inner cylindrical surface of the guide sleeve (25) can be fitted on the outer cylindrical surface of the guide column (24) to slide up and down.

9. The compact automatic centrifugal casting unloading equipment according to claim 1, characterized in that: The lifting assembly further comprises a top support plate (11), a guide rod (12), a second bushing (13) and a connecting sleeve (14); the top support plate (11) is arranged above the top plate (5); a guide hole is provided on the top plate (5); the second bushing (13) is arranged in the guide hole; the guide rod (12) is vertically passed through the guide hole through the second bushing (13); the top support plate (11) and the lifting plate (15) are connected through the guide rod (12); and the first piston rod and the lifting plate (15) are connected through the connecting sleeve (14).

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