Large semi-continuous fixed-point pouring type precision casting furnace and application method thereof

Abstract

The invention discloses a large-scale semi-continuous fixed-point pouring type precision casting furnace and an application method thereof, and the precision casting furnace comprises a smelting cavity, the bottom of which is of a height-adjustable structure; the movable cavity is adjustably mounted on one side of the smelting cavity; the mold cavity is mounted on the other side of the smelting cavity; the isolating valve is mounted between the mold cavity and the smelting cavity; the feeding temperature measuring cavity is mounted at the top of the smelting cavity; the rail group is mounted on one side, far away from the smelting cavity, of the mold cavity, at the bottom of the inner side of the mold cavity and at the bottom of the inner side of the smelting cavity; the furnace body is arranged on the movable cavity; and the mold assembly is arranged on the track group. The height of the mold assembly can be adjusted through the smelting cavity, meanwhile, the horizontal position of the furnace body can be adjusted through the movable cavity, in this way, adjustment in the vertical direction and the horizontal direction between the mold assembly and the furnace body can be achieved, alignment of the furnace body and the mold assembly is facilitated, and the problem that molten metal leaks and splashes in the casting process can be solved under the condition that a funnel is not arranged.

Description

Technical Field

[0001] The invention relates to the technical field of casting equipment, and in particular to a large-scale semi-continuous fixed-point casting type precision casting furnace and an application method thereof. Background Art

[0002] Vacuum precision casting furnace is a special metallurgical equipment used for precision casting under vacuum or protective atmosphere. During the smelting process, since the whole process takes place in a vacuum environment, it is conducive to the removal of gas impurities inside the metal, and the obtained metal alloy material is purer. At the same time, during the smelting process, through the control of vacuum environment and induction heating, the smelting temperature can be adjusted and alloy elements can be added in time to achieve the purpose of refining.

[0003] However, the existing vacuum precision casting furnaces generally have a long casting distance during casting, which easily causes leakage and splashing of molten metal, resulting in serious leakage. In some vacuum precision casting furnaces, the above problems are solved by adding a funnel. Although the funnel reduces the leakage and splashing of molten metal during the casting process, it adds the heating of the funnel and the refractory replacement process, resulting in troublesome operation, low operating efficiency, and increased maintenance costs. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention designs a large-scale semi-continuous fixed-point pouring precision casting furnace, comprising: a melting chamber, the bottom of which is a height-adjustable structure; a movable chamber, which is adjustably installed on one side of the melting chamber; a mold chamber, which is installed on the other side of the melting chamber; an isolation valve, which is installed between the mold chamber and the melting chamber; a feeding and temperature measuring chamber, which is installed on the top of the melting chamber; a track group, which is installed on the side of the mold chamber away from the melting chamber, the bottom of the inner side of the mold chamber and the bottom of the inner side of the melting chamber; a furnace body, which is arranged on the movable chamber; and a mold assembly, which is arranged on the track group.

[0005] Preferably, the smelting chamber includes: a smelting chamber, a movable chamber is adjustably installed on one side of the smelting chamber, a mold chamber is installed on the other side of the smelting chamber through an isolation valve, a feeding port is provided on the top thereof, the feeding port is connected with the feeding and temperature measuring chamber, and a track group is installed at the bottom of the inner side of the smelting chamber; a casting observation port and a slag shooting component are both installed on the top of the smelting chamber; a first movable track is installed in the smelting chamber and is slidably connected to the movable chamber; a lifting component is installed at the bottom of the smelting chamber and is connected to the track group, and is used to adjust the height of the track group at the bottom of the inner side of the smelting chamber.

[0006] Preferably, the movable cavity includes: a movable cavity, which can be adjusted and installed on one side of the smelting cavity; a cavity moving part, which is used to install the movable cavity and adjust the position of the movable cavity; a second movable track, which is installed on the movable cavity and slidably connected to the first movable track, and the furnace body is arranged on the second movable track; a furnace body pushing and pulling part, which is installed on the movable cavity and connected to the furnace body and is used to adjust the position of the furnace body.

[0007] Preferably, the furnace body includes: an induction furnace; a furnace body flipping member used to install the induction furnace and drive the induction furnace to flip; a furnace body moving member installed at the bottom of the furnace body flipping member, arranged on the second moving track, and connected to the furnace body push-pull member.

[0008] Preferably, the feeding and temperature measuring chamber includes: a feeding and temperature measuring chamber, installed on the top of the smelting chamber; a valve plate, arranged in the feeding and temperature measuring chamber and located on a side close to the smelting chamber; a valve plate switch component, installed in the feeding and temperature measuring chamber and connected to one end of the valve plate, for controlling the valve plate switch; a valve plate sealing component, installed in the feeding and temperature measuring chamber and connected to the other end of the valve plate, for fixing the valve plate when the valve plate is in a closed state; a feeding component, a temperature measuring component and a sampling component, all of which are installed in the feeding and temperature measuring chamber.

[0009] Preferably, the mold cavity includes: a mold cavity body, which is installed on the side of the smelting cavity through an isolation valve, and a track group is installed on the bottom of the inner side of the mold cavity; a first sealing connector, which is installed on the side of the mold cavity and is located on the side away from the smelting cavity; a mold cavity door, which is installed on the first sealing connector; a cavity door switch, which is installed on the first sealing connector and connected to one end of the mold cavity door, and is used to control the mold cavity door switch; a first cavity door seal, which is installed on the first sealing connector and connected to the other end of the mold cavity door, and is used to fix the mold cavity door when the mold cavity door is closed.

[0010] Preferably, the isolation valve includes: a second sealing connection piece installed between the mold cavity and the smelting chamber; an isolation valve installed on the second sealing connection piece; a valve switch piece installed on the second sealing connection piece and connected to one end of the isolation valve, for controlling the switch of the isolation valve; a second chamber door seal, installed on the second sealing connection piece and connected to the other end of the isolation valve, for fixing the isolation valve when the isolation valve is in a closed state.

[0011] Preferably, the track group includes a first track, a second track and a third track, wherein the first track is installed on the side of the mold cavity away from the smelting cavity, the second track is installed at the bottom of the inner side of the mold cavity, and the third track is installed at the bottom of the inner side of the smelting cavity; the mold assembly includes a mold cart and a mold, the mold is set on the mold cart, and the mold cart is set on the first track, the second track or the third track.

[0012] Based on the same design concept, the present invention also provides an application method of a large-scale semi-continuous fixed-point pouring precision casting furnace, comprising the following steps: step 1, adjusting the active cavity to the outside of the smelting cavity, and adding material into the furnace body; step 2, driving the furnace body to adjust to the smelting cavity through the active cavity, and sealingly connecting the active cavity to the smelting cavity, closing the isolation valve and the feeding and temperature measuring cavity, evacuating the smelting cavity, heating the furnace body, and starting smelting; step 3, observing the smelting situation in the furnace body through the smelting cavity, analyzing the components and quantity of the materials to be added, driving the furnace body to adjust to the bottom of the feeding and temperature measuring cavity through the active cavity, and Evacuate the mold, add material through the feeding and temperature measuring chamber, repeat this step until the steel tapping requirements are met; Step 4, heat the mold assembly, and transport the mold assembly to the mold cavity through the track group, close the mold cavity, and evacuate the mold cavity. After completing the vacuuming, open the isolation valve, transport the mold assembly to the smelting chamber through the track group, and adjust the position of the mold assembly and the furnace body to control the furnace body to flip and tap the steel; Step 5, after the steel tapping is completed, transport the mold assembly to the mold cavity through the track group, close the isolation valve, and after the mold assembly is cooled, open the mold cavity to complete the casting; Step 6, repeat steps 3 to 5 for continuous smelting.

[0013] Preferably, in step 4, adjusting the position of the mold assembly and the furnace body includes the following steps: adjusting the furnace body by controlling the furnace body push-pull parts to adjust the lateral spacing between the furnace body and the mold assembly; adjusting the mold assembly by controlling the lifting parts to adjust the longitudinal spacing between the mold assembly and the furnace body.

[0014] Compared with the closest prior art, the beneficial effects of the present invention are: The bottom of the smelting chamber of the present invention is a height-adjustable structure. When in use, the height of the mold assembly can be adjusted. At the same time, the movable cavity can be adjustably installed on one side of the smelting chamber, and the horizontal position of the furnace body can be adjusted. In this way, the mold assembly and the furnace body 7 can be adjusted in the up, down, left and right directions, which facilitates the alignment of the furnace body and the mold assembly. It can reduce the leakage and splashing of molten metal during the casting process without setting a funnel. The setting of multiple chambers and feeding temperature measuring chambers can ensure the continuity of smelting and increase work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the precision casting furnace of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the track group of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the mold assembly of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the mold cavity of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the isolation valve of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the smelting chamber of the present invention.

[0021] Figure 7 It is a structural schematic diagram of the feeding temperature measuring chamber of the present invention.

[0022] Figure 8 It is a structural schematic diagram of the furnace body and the active cavity of the present invention.

[0023] Fig. 9 This is a first schematic flow chart of the application method of the present invention.

[0024] Fig.10 It is a second flow chart of the application method of the present invention.

[0025] Fig.11 It is a third flow chart of the application method of the present invention.

[0026] Fig.12 This is a fourth flow chart of the application method of the present invention.

[0027] Fig.13 This is a fifth flow chart of the application method of the present invention.

[0028] Reference numerals: 1-track assembly, 11-first track, 12-second track, 13-third track, 2-mold assembly, 21-mold car, 22-mold, 3-mold cavity, 31-mold cavity, 32-first sealing connector, 33-mold cavity door, 34-cavity door switch, 35-first cavity door seal, 4-isolation valve, 41-second sealing connector, 42-isolation valve, 43-valve switch, 44-second cavity door seal, 5-melting cavity, 51-melting cavity, 52-casting observation Mouth, 53-slag shooting part, 54-feeding port, 55-first moving track, 56-lifting part, 6-feeding temperature measuring cavity, 61-feeding temperature measuring cavity, 62-valve plate, 63-valve plate switch part, 64-valve plate sealing part, 65-feeding part, 66-temperature measuring part, 67-sampling part, 7-furnace body, 71-induction furnace, 72-furnace body turning part, 73-furnace body moving part, 8-active cavity, 81-active cavity, 82-cavity moving part, 83-second moving track, 84-furnace body pushing and pulling part. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 1-Figure 8As shown, the present invention provides a large-scale semi-continuous fixed-point pouring precision casting furnace, comprising: a track group 1, a mold assembly 2, a mold cavity 3, an isolation valve 4, a smelting cavity 5, a charging and temperature measuring cavity 6, a furnace body 7 and a movable cavity 8. The bottom of the smelting cavity 5 is a height-adjustable structure. The movable cavity 8 is adjustably installed on one side of the smelting cavity 5. The mold cavity 3 is installed on the other side of the smelting cavity 5. The isolation valve 4 is installed between the mold cavity 3 and the smelting cavity 5. The charging and temperature measuring cavity 6 is installed on the top of the smelting cavity 5. The track group 1 is installed on the side of the mold cavity 3 away from the smelting cavity 5, the bottom of the inner side of the mold cavity 3 and the bottom of the inner side of the smelting cavity 5. The furnace body 7 is arranged on the movable cavity 8. The mold assembly 2 is arranged on the track group 1. The bottom of the smelting chamber 5 is a height-adjustable structure. When in use, the height of the mold assembly 2 can be adjusted. At the same time, the movable chamber 8 can be adjustably installed on one side of the smelting chamber 5, and the horizontal position of the furnace body 7 can be adjusted. This can meet the needs of adjusting the up, down, left and right directions between the mold assembly 2 and the furnace body 7, facilitate the alignment of the furnace body 7 and the mold assembly 2, and can reduce the leakage and splashing of molten metal during the casting process without setting a funnel. At the same time, the setting of multiple chambers and the feeding temperature measuring chamber 6 can ensure the continuity of smelting and increase work efficiency.

[0031] In a preferred embodiment, the smelting chamber 5 includes a smelting chamber 51, a casting observation port 52, a slag shooting member 53, a first movable track 55 and a lifting member 56. The movable chamber 8 is adjustably mounted on one side of the smelting chamber 51, the mold chamber 3 is mounted on the other side of the smelting chamber 51 through an isolation valve 4, a feeding port 54 is provided at the top of the smelting chamber 51, the feeding port 54 is connected to the feeding temperature measuring chamber 6, and the track group 1 is mounted at the bottom of the inner side of the smelting chamber 51. The casting observation port 52 and the slag shooting member 53 are both mounted on the top of the smelting chamber 51. The first movable track 55 is mounted in the smelting chamber 51 and is slidably connected to the movable chamber 8. The lifting member 56 is mounted at the bottom of the smelting chamber 51 and is connected to the track group 1, and is used to adjust the height of the track group 1 at the bottom of the inner side of the smelting chamber 51.

[0032] In a preferred embodiment, the movable cavity 8 includes a movable cavity 81, a cavity moving member 82, a second moving track 83 and a furnace body push-pull member 84. The movable cavity 81 is adjustably mounted on one side of the smelting cavity 51. The cavity moving member 82 is used to mount the movable cavity 81 and adjust the position of the movable cavity 81. The second moving track 83 is mounted on the movable cavity 81 and is slidably connected to the first moving track 55, and the furnace body 7 is arranged on the second moving track 83. The furnace body push-pull member 84 is mounted on the movable cavity 81 and is connected to the furnace body 7, and is used to adjust the position of the furnace body 7.

[0033] In a preferred embodiment, the furnace body 7 includes an induction furnace 71, a furnace body turning member 72 and a furnace body moving member 73. The furnace body turning member 72 is used to install the induction furnace 71 and drive the induction furnace 71 to turn over. The furnace body moving member 73 is installed at the bottom of the furnace body turning member 72, is arranged on the second moving track 83, and is connected to the furnace body push-pull member 84.

[0034] In a preferred embodiment, the feeding and temperature measuring chamber 6 includes a feeding and temperature measuring chamber 61, a valve plate 62, a valve plate switch 63, a valve plate seal 64, a feeding member 65, a temperature measuring member 66 and a sampling member 67. The feeding and temperature measuring chamber 61 is installed at the top of the smelting chamber 5. The valve plate 62 is arranged in the feeding and temperature measuring chamber 61 and is located on a side close to the smelting chamber 5. The valve plate switch 63 is installed in the feeding and temperature measuring chamber 61 and is connected to one end of the valve plate 62 to control the switch of the valve plate 62. The valve plate seal 64 is installed in the feeding and temperature measuring chamber 61 and is connected to the other end of the valve plate 62 to fix the valve plate 62 when the valve plate 62 is closed. The feeding member 65, the temperature measuring member 66 and the sampling member 67 are all installed in the feeding and temperature measuring chamber 61.

[0035] In a preferred embodiment, the mold cavity 3 includes a mold cavity 31, a first sealing connector 32, a mold cavity door 33, a cavity door switch 34 and a first cavity door seal 35. The mold cavity 31 is installed on the side of the smelting cavity 5 through the isolation valve 4, and the track group 1 is installed at the bottom of the inner side of the mold cavity 31. The first sealing connector 32 is installed on the side of the mold cavity 31 and is located on the side away from the smelting cavity 5. The mold cavity door 33 is installed on the first sealing connector 32. The cavity door switch 34 is installed on the first sealing connector 32 and connected to one end of the mold cavity door 33, and is used to control the opening and closing of the mold cavity door 33. The first cavity door seal 35 is installed on the first sealing connector 32 and connected to the other end of the mold cavity door 33, and is used to fix the mold cavity door 33 when the mold cavity door 33 is closed.

[0036] In a preferred embodiment, the isolation valve 4 includes a second sealing connector 41, an isolation valve 42, a valve switch member 43, and a second chamber door seal 44. The second sealing connector 41 is installed between the mold cavity 3 and the smelting cavity 5. The isolation valve 42 is installed on the second sealing connector 41. The valve switch member 43 is installed on the second sealing connector 41 and connected to one end of the isolation valve 42, and is used to control the switch of the isolation valve 42. The second chamber door seal 44 is installed on the second sealing connector 41 and connected to the other end of the isolation valve 42, and is used to fix the isolation valve 42 when the isolation valve 42 is closed.

[0037] In a preferred embodiment, the track set 1 includes a first track 11, a second track 12 and a third track 13, wherein the first track 11 is installed on the side of the mold cavity 3 away from the smelting cavity 5, the second track 12 is installed at the bottom of the inner side of the mold cavity 3, and the third track 13 is installed at the bottom of the inner side of the smelting cavity 5. The mold assembly 2 includes a mold vehicle 21 and a mold 22, the mold 22 is arranged on the mold vehicle 21, and the mold vehicle 21 is arranged on the first track 11, the second track 12 or the third track 13.

[0038] like Figure 9-13 As shown, the present invention also provides an application method of a large-scale semi-continuous fixed-point pouring precision casting furnace, comprising the following steps: Step 1: Adjust the movable chamber 8 to the outside of the smelting chamber 5, and add materials to the furnace body 7. Before the first smelting, the furnace body 7 can be placed in an unobstructed state under the atmosphere, so that the crane can be used for rapid material addition, and if a fault occurs, this state is also convenient for inspection and maintenance of the induction furnace.

[0039] Step 2, the furnace body 7 is driven by the active cavity 8 to be adjusted into the smelting cavity 5, the cavity moving part 82 is started, and the active cavity 81 is driven to move in the direction of the smelting cavity 5, wherein the second moving track 83 slides on the first moving track 55, and the active cavity 81 stops moving after contacting with the smelting cavity 5, and the active cavity 8 is sealed and connected with the smelting cavity 5, that is, the active cavity 81 is sealed and connected with the smelting cavity 51, the isolation valve 4 and the charging and temperature measuring cavity 6 are closed, so that the furnace body 7 is in the sealed smelting cavity 5, the smelting cavity 5 is vacuumized, the furnace body 7 is heated, and smelting starts.

[0040] Step 3: Observe the smelting situation in the furnace body 7 through the slag shooting member 53 of the smelting chamber 5, observe the slag situation, if the process needs to add other components, analyze the components and quantities that need to be added, drive the furnace body 7 to be adjusted to the right below the charging and temperature measuring chamber 6 through the furnace body push-pull member 84 of the movable chamber 8, evacuate the charging and temperature measuring chamber 6, add materials through the charging member 65 of the charging and temperature measuring chamber 6, and repeat this step until the steel tapping requirements are met. The smelting material in the furnace body 7 can also be analyzed through the sampling member 67 of the charging and temperature measuring chamber 6 to analyze the components and quantities that need to be added.

[0041] Step 4: Heat the mold assembly 2, and transport the mold assembly 2 to the mold cavity 3 through the track group 1, close the mold cavity 3, and evacuate the mold cavity 3. After evacuating the mold cavity 3, open the isolation valve 4, transport the mold assembly 2 to the smelting cavity 5 through the track group 1, and adjust the positions of the mold assembly 2 and the furnace body 7. Adjust the furnace body 7 by controlling the furnace body push-pull member 84 to adjust the lateral spacing between the furnace body 7 and the mold assembly 2. Adjust the mold assembly 2 by controlling the lifting member 56 to adjust the longitudinal spacing between the mold assembly 2 and the furnace body 7. When the relative position of the mold assembly 2 and the furnace body 7 is suitable for pouring, control the furnace body 7 to flip and discharge steel.

[0042] Step 5: After the steel is tapped, the mold assembly 2 is transported to the mold cavity 3 through the track group 1, and the isolation valve 4 is closed. After the mold assembly 2 is cooled, the mold cavity 3 is opened and the casting is completed.

[0043] Step 6: Repeat steps 3 to 5 for continuous smelting.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In addition, the terms "above" and "below" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "above" and "below" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A large semi-continuous fixed-point pouring precision casting furnace, characterized in that: include: A smelting chamber (5), the bottom of which is a height-adjustable structure; A movable chamber (8) which is adjustably mounted on one side of the smelting chamber (5); A mold cavity (3) mounted on the other side of the smelting cavity (5); An isolation valve (4) installed between the mold cavity (3) and the smelting cavity (5); A charging temperature measuring chamber (6) installed on the top of the smelting chamber (5); A track assembly (1) is mounted on a side of the mold cavity (3) away from the smelting cavity (5), the bottom of the inner side of the mold cavity (3), and the bottom of the inner side of the smelting cavity (5); A furnace body (7) arranged on the movable cavity (8); A mold assembly (2) arranged on the track assembly (1); Wherein, the smelting chamber (5) comprises: A smelting cavity (51), wherein the movable cavity (8) is adjustably mounted on one side of the smelting cavity (51), the mold cavity (3) is mounted on the other side of the smelting cavity (51) via the isolation valve (4), a feeding port (54) is provided on the top thereof, the feeding port (54) is communicated with the feeding and temperature measuring cavity (6), and the track assembly (1) is mounted on the bottom of the inner side of the smelting cavity (51); A casting observation port (52) and a slag shooting member (53) are both installed on the top of the smelting cavity (51); A first movable track (55) is installed in the smelting chamber (51) and is slidably connected to the movable chamber (8); A lifting member (56) is installed at the bottom of the smelting chamber (51) and is connected to the track group (1), and is used to adjust the height of the track group (1) at the bottom of the inner side of the smelting chamber (51); Wherein, the active cavity (8) comprises: A movable cavity (81) is adjustably mounted on one side of the smelting cavity (51); A cavity moving part (82), used for installing the movable cavity (81) and adjusting the position of the movable cavity (81); a second movable track (83) mounted on the movable cavity (81) and slidably connected to the first movable track (55), the furnace body (7) being arranged on the second movable track (83); A furnace body push-pull member (84) is mounted on the movable cavity (81) and connected to the furnace body (7) and is used to adjust the position of the furnace body (7).

2. The large semi-continuous fixed-point pouring precision casting furnace according to claim 1, characterized in that: The furnace body (7) comprises: Induction furnace (71); A furnace body turning member (72) is used to install the induction furnace (71) and drive the induction furnace (71) to turn over; The furnace body moving member (73) is installed at the bottom of the furnace body turning member (72), is arranged on the second moving track (83), and is connected to the furnace body pushing and pulling member (84).

3. The large semi-continuous fixed-point pouring precision casting furnace according to claim 1, characterized in that: The feeding temperature measuring chamber (6) comprises: A charging and temperature measuring chamber (61) installed on the top of the smelting chamber (5); A valve plate (62) is arranged in the charging and temperature measuring cavity (61) and is located on a side close to the smelting cavity (5); A valve plate switch component (63) is installed in the feeding temperature measurement cavity (61) and connected to one end of the valve plate (62) and is used to control the switch of the valve plate (62); A valve plate sealing member (64) is installed in the feeding temperature measuring cavity (61) and is connected to the other end of the valve plate (62), and is used to fix the valve plate (62) when the valve plate (62) is in a closed state; The feeding component (65), the temperature measuring component (66) and the sampling component (67) are all installed in the feeding and temperature measuring cavity (61).

4. The large semi-continuous fixed-point pouring precision casting furnace according to claim 1, characterized in that: The mold cavity (3) comprises: A mold cavity (31) is installed on the side of the smelting chamber (5) through the isolation valve (4), and the track assembly (1) is installed on the bottom of the inner side of the mold cavity (31); A first sealing connection member (32) is mounted on a side of the mold cavity (31) and is located on a side away from the smelting chamber (5); A mold cavity door (33) mounted on the first sealing connection member (32); a cavity door switch component (34), mounted on the first sealing connection component (32) and connected to one end of the mold cavity door (33), and used for controlling the opening and closing of the mold cavity door (33); A first cavity door sealing member (35) is mounted on the first sealing connector (32) and connected to the other end of the mold cavity door (33), and is used to fix the mold cavity door (33) when the mold cavity door (33) is in a closed state.

5. The large semi-continuous fixed-point pouring precision casting furnace according to claim 1, characterized in that: The isolation valve (4) comprises: A second sealing connection member (41) is installed between the mold cavity (3) and the smelting cavity (5); An isolation valve (42) mounted on the second sealing connection member (41); a valve switch member (43), mounted on the second sealing connection member (41) and connected to one end of the isolation valve (42), and used for controlling the switch of the isolation valve (42); The second chamber door sealing member (44) is mounted on the second sealing connection member (41) and connected to the other end of the isolation valve (42), and is used to fix the isolation valve (42) when the isolation valve (42) is in a closed state.

6. The large semi-continuous fixed-point pouring precision casting furnace according to claim 1, characterized in that: The track group (1) comprises a first track (11), a second track (12) and a third track (13), wherein the first track (11) is installed on a side of the mold cavity (3) away from the smelting cavity (5), the second track (12) is installed on the bottom of the inner side of the mold cavity (3), and the third track (13) is installed on the bottom of the inner side of the smelting cavity (5); The mold assembly (2) comprises a mold trolley (21) and a mold (22); the mold (22) is arranged on the mold trolley (21); and the mold trolley (21) is arranged on the first track (11), the second track (12) or the third track (13).

7. An application method of the large-scale semi-continuous fixed-point pouring precision casting furnace as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1, adjusting the movable chamber (8) to the outside of the smelting chamber (5), and adding materials into the furnace body (7); Step 2: The furnace body (7) is driven by the movable chamber (8) to adjust to the inside of the smelting chamber (5), and the movable chamber (8) is sealed and connected to the smelting chamber (5), the isolation valve (4) and the charging and temperature measuring chamber (6) are closed, the smelting chamber (5) is evacuated, the furnace body (7) is heated, and smelting begins; Step 3, observing the smelting situation in the furnace body (7) through the smelting chamber (5), analyzing the composition and quantity of the material to be added, driving the furnace body (7) to adjust to the position directly below the material adding and temperature measuring chamber (6) through the movable chamber (8), evacuating the material adding and temperature measuring chamber (6), adding material through the material adding and temperature measuring chamber (6), and repeating this step until the steel tapping requirements are met; Step 4, heating the mold assembly (2), and transporting the mold assembly (2) into the mold cavity (3) via the track assembly (1), closing the mold cavity (3), and evacuating the mold cavity (3). After the evacuation is completed, opening the isolation valve (4), transporting the mold assembly (2) into the smelting cavity (5) via the track assembly (1), and adjusting the positions of the mold assembly (2) and the furnace body (7), and controlling the furnace body (7) to flip and discharge steel; Step 5: After the steel is tapped, the mold assembly (2) is transported to the mold cavity (3) via the track assembly (1), the isolation valve (4) is closed, and after the mold assembly (2) is cooled, the mold cavity (3) is opened, and the casting is completed; Step 6: Repeat steps 3 to 5 for continuous smelting.

8. The application method according to claim 7, characterized in that: In step 4, the positions of the mold assembly (2) and the furnace body (7) are adjusted, including the following steps: The furnace body (7) is adjusted by controlling the furnace body push-pull member (84) to adjust the lateral distance between the furnace body (7) and the mold assembly (2); The mold assembly (2) is adjusted by controlling the lifting member (56) to adjust the longitudinal distance between the mold assembly (2) and the furnace body (7).

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