Alloy body shrinkage rate detection device

Abstract

The utility model discloses a device for detecting the shrinkage rate of an alloy body, relates to the technical field of metal physical property detection, and aims to solve the problem that no equipment for detecting the shrinkage rate of the alloy body exists in the prior art. A die is arranged on the workbench, an opening in the top end of the die is communicated with a riser die, a heating furnace is further arranged on the workbench and arranged on the die and the riser die in a covering mode, a first driving device is further fixedly connected to the workbench, and the heating furnace is rotationally connected with the first driving device so that the heating furnace can be driven to be turned up.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal physical property detection, and specifically relates to an alloy body shrinkage detection device BACKGROUND

[0002] In the casting process, the phenomenon of shrinkage cavity and shrinkage porosity usually occurs, which is a major defect on the casting, and the basic condition for its generation is that the liquid shrinkage and solidification of the alloy are much greater than the solid shrinkage. Generally, the smaller the solidification temperature range of the alloy is, the more concentrated the shrinkage cavity is, and vice versa, the shrinkage porosity is easy to form.

[0003] In actual production, in order to avoid the generation of shrinkage cavity or shrinkage porosity on the casting, the volume shrinkage of the casting during the liquid and solidification period is supplemented by the alloy liquid in time, so that the shrinkage cavity and shrinkage porosity are concentrated in the riser outside the casting. However, due to the different physical properties of each alloy liquid, the volume shrinkage of the alloy liquid needs to be detected before casting, the volume shrinkage rate of the casting alloy is determined, and then the required shrinkage alloy amount can be calculated according to the volume shrinkage rate, the riser size is determined, and the casting process is accurately formulated. However, there is no device for detecting the volume shrinkage rate of the alloy at present, so it is necessary to develop a device for detecting the volume shrinkage rate of the alloy. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, i.e. there is no device for detecting the volume shrinkage rate of the alloy in the prior art, the utility model provides an alloy body shrinkage rate detection device, which comprises a workbench, a mold is arranged on the workbench, a riser mold is communicated with the top opening of the mold, a heating furnace is further arranged on the workbench, the heating furnace is arranged on the mold and the riser mold, a driving device one is further fixedly connected to the workbench, and the heating furnace is rotatably connected with the driving device one, so as to drive the heating furnace to be turned up.

[0005] By adopting the above technical scheme, the mold and the riser mold are filled with alloy liquid, and in the process of cooling and solidification of the alloy liquid in the mold, if the alloy liquid in the mold shrinks, the alloy liquid in the riser mold will automatically supplement into the mold. After complete cooling and solidification, the volume of the alloy liquid in the riser mold supplemented into the mold can be obtained, i.e. the shrinkage volume of the alloy liquid in the mold, and then the volume shrinkage rate of the alloy can be calculated according to the shrinkage volume, so as to meet the purpose of detecting the volume shrinkage rate of the alloy.

[0006] The utility model discloses a further setting be: the work table upper surface is provided with through -hole, the through -hole with the coaxial setting of mould, and the diameter of through -hole is greater than the diameter setting of mould, be provided with the lifting system in the work table, be connected with the support column on the lifting system to be used for driving the up and down movement of support column, the mould sets up in the support column one end of deviating from the lifting system, the inside of work table still is provided with the spraying system, and the water -spraying opening of spraying system is towards the axial setting of mould.

[0007] Through adopt above -mentioned technical scheme, under the drive of lifting system, the mould can gradually move down, and then the spraying system can gradually cool down the mould from the bottom of mould, and the alloy liquid in the mould can be solidified from bottom to top, and then the purpose that the alloy liquid in the riser mould supplements to the mould can be realized.

[0008] The utility model discloses a further setting be: the support column with between the lifting system is provided with the article placing plate, be provided with water tank on the article placing plate, the water tank sets up in the below of spraying system, and the lateral wall on water tank is provided with water outlet.

[0009] Through adopt above -mentioned technical scheme, the water that spraying system sprays can flow into the water tank directly, realizes the centralized collection to cooling water, and can be discharged from water outlet.

[0010] The utility model discloses a further setting be: the inside of work table still is provided with two parallel positioning column, the both ends of positioning column are connected in the upper surface and the lower surface of work table, and two positioning column sets up in the both sides of article placing plate respectively, and positioning column is perpendicular to the article placing plate setting, and the article placing plate is slidably connected with two positioning column through the sliding sleeve.

[0011] Through adopt above -mentioned technical scheme, two positioning column can make the up and down movement of lifting system drive article placing plate more stable.

[0012] The utility model discloses a further setting be: the spraying system includes annular pipeline, the annular pipeline with the coaxial setting of mould, the annular pipeline is fixed in the inside of work table, install a plurality of shower nozzles on the annular pipeline, and a plurality of shower nozzles evenly distribute along the annular pipeline, and the annular pipeline is communicated with water pump through pipeline.

[0013] Through adopt above -mentioned technical scheme, the annular water pipe can be more evenly sprayed to the mould, and the mould can be more evenly cooled.

[0014] The utility model discloses a further setting be: the mould with between the riser mould is provided with the film coated sand piece.

[0015] Through adoption of the technical scheme, the coated sand piece can separate the riser from the casting more easily after the mold is removed.

[0016] The utility model discloses the beneficial effect is:

[0017] 1, through the cooperation of lifting system and mould, can make the mould be driven and move up and down, and then be sprayed by the spray system and be cooled, make the alloy liquid in the mould can be cooled from bottom to top in turn, and then make the alloy liquid in the riser mould can be supplemented into the mould.

[0018] 2, set up water tank, can centralized collection and discharge to the cooling water, avoid the cooling water and drop to the lifting system, cause the influence to the work of lifting system. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model discloses a structure schematic drawing.

[0020] Figure 2 The utility model discloses a top view.

[0021] Figure 3 The utility model discloses the partial close -up of A place.

[0022] Fig. 1, workbench 11, through -hole 2, mould 21, coated sand piece 22, 3, heating furnace 31, connecting plate 4, drive device one 41, transmission box one 5, lifting system 51, screw 52, transmission box two 53, drive device two 6, storage plate 61, support column 62, water tank 7, positioning column 71, sliding sleeve 8, spray system 81, annular pipeline 82, spray head 83, water pump. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0024] The utility model discloses an alloy body shrinkage rate detection device, including workbench 1, workbench 1 is a rectangular cabinet, the upper surface of workbench 1 is provided with mould 2, and the top opening of mould 2 is communicated with riser mould 21, and alloy liquid can be cast into mould 2 through riser mould 21, when mould 2 is full of alloy liquid, alloy liquid will be in riser mould 21, for the shrinkage of mould 2.

[0025] The upper surface of the workbench 1 is further provided with a heating furnace 3, the heating furnace 3 is selected from a tubular electric furnace, the heating furnace 3 is covered on the mold 2 and the riser mold 21, when the mold 2 and the riser mold 21 are filled with alloy liquid, the temperature thereof will be reduced in the pouring process, that is, lower than the melting point temperature of the alloy, at this time, the heating furnace 3 can be used to heat the alloy liquid in the mold 2 and the riser mold 21, so that the alloy liquid reaches the melting point temperature of the alloy.

[0026] The workbench 1 is further provided with a transmission box one 41, the transmission box one 41 is fixedly connected to the upper surface of the workbench 1 through bolts, a worm gear is arranged in the transmission box one 41 for transmission, the input end of the transmission box one 41 is coaxially connected with a driving device one 4, the driving device one 4 is a motor of model YS90-4, the output end of the transmission box one 41 is rotatably connected with a connecting plate 31, one end of the connecting plate 31 away from the transmission box one 41 is connected to the side wall of the heating furnace 3 through bolts, the driving device one 4 can drive the worm gear in the transmission box one 41 to rotate, and then the transmission box one 41 drives the connecting plate 31 to rotate, when the connecting plate 31 rotates, the heating furnace 3 can be lifted up, so that the mold 2 and the riser mold 21 are discharged.

[0027] The upper surface of the workbench 1 is provided with a through hole 11, the through hole 11 is arranged corresponding to the mold 2, the through hole 11 is coaxially arranged with the mold 2, and the diameter of the through hole 11 is greater than that of the mold 2. The inside of the workbench 1 is provided with a lifting system 5, the lifting system 5 is connected with a placing plate 6, the upper surface of the placing plate 6 is connected with a supporting column 61 through bolts, one end of the supporting column 61 away from the lifting system 5 is used for placing the mold 2, the lifting system 5 can drive the placing plate 6 and the supporting column 61 to move up and down, and then drive the mold 2 to move up and down, in the process of moving up and down, the mold 2 can pass through the through hole 11.

[0028] The inside of the workbench 1 is further provided with a spraying system 8, the spraying system 8 is fixedly connected to the upper surface of the workbench 1, and the water outlet of the spraying system 8 is arranged to face the axis direction of the mold 2, so as to spray water to the mold 2 for cooling, and accelerate the cooling speed of the alloy liquid in the mold 2.

[0029] The placing plate 6 is placed with a water tank 62, the water tank 62 is arranged in an annular shape, and the supporting column 61 is arranged at the center of the water tank 62, so as to avoid the water tank 62 from interfering with the lifting system 5 driving the supporting column 61 to move up and down. The water tank 62 is arranged below the spraying system 8, the water sprayed by the spraying system 8 to the mold 2 can flow into the water tank 62, so as to collect the cooling water, and avoid the cooling water from dropping into the lifting system 5 to affect the lifting system 5.

[0030] A water outlet is further arranged on the outer side wall of the water tank 62, and the water outlet is used for discharging the water in the water tank 62.

[0031] The workbench 1 is further provided with two mutually parallel positioning columns 7, the two ends of the positioning column 7 are respectively connected with the upper surface and the lower surface of the workbench 1 through bolts, the positioning column 7 is perpendicular to the placement plate 6, the two positioning columns 7 are respectively arranged on the two sides of the placement plate 6 and are symmetrically arranged about the center of the placement plate 6. The placement plate 6 is slidably connected with the supporting column 61 through a sliding sleeve 71, the sliding sleeve 71 is sleeved on the supporting column 61, the side wall of the sliding sleeve 71 is welded with the placement plate 6, when the lifting system 5 drives the placement plate 6 to move up and down, the sliding sleeve 71 can slide along the direction of the supporting column 61, thereby positioning and stabilizing the up-down movement of the placement plate 6, so that the movement of the placement plate 6 is more stable.

[0032] The spraying system 8 comprises an annular pipeline 81, the diameter of the annular pipeline 81 is greater than the diameter of the through hole 11, and the annular pipeline 81 is coaxially arranged with the mold 2, the annular pipeline 81 is arranged in the inside of the workbench 1 and is fixedly connected to the upper surface of the workbench 1, a plurality of spray heads 82 are installed on the annular pipeline 81, the plurality of spray heads 82 are uniformly arranged along the annular pipeline 81, the water outlet of the spray head 82 is arranged towards the axis of the mold 2, so that the sprayed water can uniformly spray on the mold 2 to cool the alloy liquid in the mold 2.

[0033] The spraying pipeline is communicated with a water pump 83 through a pipeline, the input end of the water pump 83 is communicated to a water source, so as to supply water to the annular pipeline 81.

[0034] The mold 2 and the riser mold 21 are further embedded with a coated sand piece 22, the inside of the coated sand piece 22 is provided with two tapered cavities, the small-diameter ends of the two tapered cavities are communicated, and the small-diameter ends of the two tapered cavities are smaller in diameter than the diameters of the inner cavities of the mold 2 and the riser mold 21, so that after the alloy liquid is completely solidified, the riser and the casting can be more easily separated.

[0035] The lifting system 5 comprises a lead screw 51, a transmission box two 52 is threadedly connected to the lead screw 51, the transmission box two 52 is connected with the lead screw 51 through a worm and a worm gear, and the lead screw 51 is connected with a driving device two 53 through the worm gear, the driving device two 53 is a motor, the driving device two 53 can drive the lead screw 51 to move up and down through the worm gear, and when the bottom end of the lead screw 51 reaches the bottom surface of the workbench 1, the transmission box two 52 can be lifted up by continuing to move downward, when the lead screw 51 moves upward, the transmission box two 52 will move downward under the action of its own gravity, until the top end of the lead screw 51 reaches the bottom surface of the workbench 1.

[0036] The upper end of the transmission box two 52 is connected with the placement plate 6 through bolts, the top end of the lead screw 51 penetrates through the placement plate 6 and extends into the supporting column 61, the supporting column 61 is sleeved on the lead screw 51, so that the lead screw 51 can move up and down, thereby achieving the purpose of driving the placement plate 6 to move up and down.

[0037] Working process: first, open the driving device 4, turn the heating furnace 3 to the position of exposing the mold 2, then pour the alloy liquid into the riser mold 21, make the alloy liquid fill the mold 2 and the riser mold 21, then put down the heating furnace 3, make it cover the mold 2 again, open the heating furnace 3, heat the alloy liquid in the mold 2 and the riser mold 21, make the temperature reach the melting point of the alloy, then stop heating.

[0038] Secondly, open the water pump 83, supply water for the annular pipeline 81, then open the driving device two 53, drive the supporting column 61 to move downward with the mold 2, during the moving process, the water sprayed by the annular pipeline 81 can gradually cool the bottom of the mold 2 upward, so that the alloy liquid in the mold 2 is also solidified from the bottom to the top in sequence, until the mold 2 is cooled completely, then the mold 2 is lifted back to the original position through the driving device two 53.

[0039] Finally, close the water pump 83 and the driving device two 53, open the driving device one 4, turn the heating furnace 3 to take out the cooled mold 2, then the mold 2 can be demolded and the riser can be removed.

[0040] The mass of the alloy poured into the riser mold 21 is denoted as M0, the mass of the solidified riser is denoted as M1, the density of the alloy is denoted as p, and the volume shrinkage V0 of the alloy in the mold 2 is:

[0041]

[0042] The shrinkage rate a of the casting during the solidification process is:

[0043]

[0044] Wherein V is the volume of the casting, and M is the mass of the casting.

[0045] According to the above, the mold 2 can be driven to move up and down by the cooperation of the lifting system 5 and the mold 2, and then be sprayed and cooled by the spraying system 8, so that the alloy liquid in the mold 2 can be sequentially cooled from bottom to top, and then the alloy liquid in the riser mold 21 can be supplemented into the mold 2, the alloy amount supplemented by the riser mold 21 into the mold 2 can be obtained according to the volume of the solidified riser, that is, the shrinkage of the alloy liquid in the mold 2, and the volume shrinkage rate of the alloy liquid is further calculated, so that the purpose of detecting the volume shrinkage rate of the alloy is achieved.

[0046] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the utility model, and equivalent substitutions can be made to parts thereof, and in particular, as long as there is no structural conflict, each of the technical features mentioned in each of the embodiments can be combined in any manner. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0047] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0049] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0050] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or substitutions to related technical features, and the technical solutions after the changes or substitutions will fall within the protection scope of the utility model.

Claims

1. An alloy body shrinkage detecting device characterized by comprising: The utility model provides a sand casting device, including workbench (1), the workbench (1) is provided with mould (2), the top opening of mould (2) is connected with the riser mould (21), the workbench (1) is also provided with heating furnace (3), the heating furnace (3) cover is set in mould (2) with riser mould (21), the workbench (1) is also fixedly connected with drive device one (4), the heating furnace (3) is rotatably connected with drive device one (4), to drive the heating furnace (3) is turned up.

2. The alloy body shrinkage detecting apparatus according to claim 1, characterized by: The workbench (1) upper surface is provided with through hole (11), the through hole (11) is coaxial with the mould (2) is arranged, and the diameter of through hole (11) is greater than the diameter of the mould (2) is arranged, the workbench (1) is provided with lifting system (5), the lifting system (5) is connected with support column (61), to drive the support column (61) moves up and down, the mould (2) is arranged in the support column (61) is away from the lifting system (5) one end of the workbench (1) is also provided with spray system (8) in the inside, the water outlet of spray system (8) is towards the axis of the mould (2) is arranged.

3. The alloy body shrinkage detecting apparatus according to claim 2, characterized by: The support column (61) is provided with the object plate (6) between the lifting system (5), the object plate (6) is provided with water tank (62), the water tank (62) is arranged below the spray system (8), the water outlet is set up on the lateral wall of water tank (62).

4. The alloy body shrinkage detecting apparatus according to claim 3, characterized by: The workbench (1) is also provided with two parallel positioning columns (7) in the inside, the two ends of positioning column (7) are connected on the upper surface and the lower surface of workbench (1) respectively, two positioning columns (7) are arranged on the both sides of object plate (6) respectively, and the positioning column (7) is perpendicular to the object plate (6) is arranged, the object plate (6) is slidably connected with two positioning columns (7) through the sliding sleeve (71).

5. The alloy body shrinkage detecting apparatus according to claim 2, characterized by: The spray system (8) includes annular pipeline (81), the annular pipeline (81) is coaxially arranged with the mould (2), the annular pipeline (81) is fixed in the workbench (1), a plurality of spray heads (82) are installed on the annular pipeline (81), a plurality of spray heads (82) are evenly arranged along the annular pipeline (81);The annular pipeline (81) is communicated with water pump (83) through pipeline.

6. The alloy body shrinkage detecting apparatus according to claim 1, characterized by: The mould (2) is provided with film-coated sand piece (22) between the riser mould (21).

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