Quality inspection device and method for graphite crucible production

Abstract

The invention belongs to the technical field of graphite crucible production, and particularly relates to a quality inspection device and method for graphite crucible production, and the device comprises a detection table, the top surface of the detection table is fixedly provided with a plurality of sliding rods, the top ends of the plurality of sliding rods are fixedly provided with the same top table, and the plurality of sliding rods are slidably provided with a lifting table; the lifting table is located above the detection table, a U-shaped lifting plate is fixedly installed on the bottom surface of the lifting table, fixed plates are fixedly installed on the two sides of the interior of the U-shaped lifting plate, connecting plates are rotatably installed on the two fixed plates, and movable plates are rotatably installed on the top surfaces of the two connecting plates. The other adjusting assembly is started to drive the other movable plate to rotate, the lower pressing block is made to rotate to the position above the graphite crucible, at the moment, the lower pressing block is driven to descend through the lifting assembly, and due to the fact that the pressure sensor is arranged at the bottom of the lower pressing block, the pressure sensor can monitor the pressure resistance of the graphite crucible in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of graphite crucible production, and in particular relates to a quality inspection device and method for graphite crucible production. Background Art

[0002] Graphite crucible, also known as copper melting bag, copper melting, etc., refers to a type of crucible made of graphite, clay, silica and fluorite as raw materials. Graphite crucible is mainly used to smelt non-ferrous metals and their alloys such as copper, brass, gold, silver, zinc and lead. Graphite crucible is made of natural flake graphite as the main raw material and plastic refractory clay or carbon as a binder. It has the characteristics of high temperature resistance, strong thermal conductivity, good corrosion resistance and long service life. During high-temperature use, the thermal expansion coefficient is small, and it has a certain strain resistance to rapid cooling and rapid heating. It has strong corrosion resistance to acidic and alkaline solutions, has excellent chemical stability, and does not participate in any chemical reaction during the smelting process.

[0003] After the existing graphite crucibles are produced, one or more samples will be randomly selected from the same batch for quality inspection to detect whether the graphite crucibles in this batch meet the standards. They can only be sold after passing the inspection. When inspecting the graphite crucibles, it is necessary to detect whether there are cracks on the inner wall of the graphite crucible and the compressive strength of the graphite crucible. This inspection is usually carried out in two different devices. During the inspection, the graphite crucibles need to be sent to different devices for inspection respectively. This not only has low inspection efficiency but also poor practicality. In view of this, we propose a quality inspection device and method for graphite crucible production. Summary of the invention

[0004] The object of the present invention is to provide a quality inspection device and method for graphite crucible production to solve the problems raised in the above background technology.

[0005] In view of this, the present invention provides a quality inspection device for graphite crucible production, comprising: A testing platform, wherein a plurality of sliding rods are fixedly installed on the top surface of the testing platform, a same top platform is fixedly installed on the top ends of the plurality of sliding rods, a lifting platform is slidably installed on the plurality of sliding rods, the lifting platform is located above the testing platform, a U-shaped lifting plate is fixedly installed on the bottom surface of the lifting platform, a fixed plate is fixedly installed on both sides of the interior of the U-shaped lifting plate, a connecting plate is rotatably installed on the two fixing plates, and a movable plate is rotatably installed on the top surfaces of the two connecting plates; Two groups of adjustment components, the two groups of adjustment components are respectively arranged on the two fixed plates and are used to drive the two movable plates to rotate; A mounting rod, the mounting rod is fixedly mounted on one side of one of the movable plates, a lower pressing block is mounted on the bottom end of the mounting rod by bolts, a material pump is fixedly mounted on one side of the other movable plate, and a discharge pipe is arranged on the bottom surface of the material pump; A lifting component, which is arranged on the lifting platform and is used to drive the lifting platform to move up and down; Two clamping plates, two of which are slidably mounted on the top surface of the testing table; Two groups of movable components are arranged on the top surface of the detection platform and are used to drive the two clamping plates to move.

[0006] In the above technical scheme, further, the lifting assembly includes two side panels, the two side panels are fixedly installed on the bottom surface of the top platform, the same second rotating shaft is rotatably installed between the two side panels, a plurality of first moving rods are fixedly installed on the second rotating shaft, a plurality of second fixed seats are fixedly installed on the top surface of the lifting platform, a second moving rod is rotatably installed in each of the plurality of second fixed seats, one side of the plurality of second moving rods is respectively rotatably connected to one side of the plurality of first moving rods, a motor B is fixedly installed on one side of one of the side panels, one end of the output shaft of the motor B is fixedly connected to one end of the second rotating shaft, the motor B is started to drive the second rotating shaft to rotate, and when the second rotating shaft rotates, the lifting platform is driven down through the cooperation of the first moving rod, the second moving rod and the second fixed seat, so as to facilitate the detection of the discharge pipe and the lower pressure block close to the graphite crucible.

[0007] In the above technical scheme, further, the movable component includes two mounting plates, the two mounting plates are fixedly mounted on the top surface of the detection table, a first rotating shaft is rotatably mounted between the two mounting plates, a plurality of second connecting rods are fixedly mounted on the first rotating shaft, a plurality of first fixed seats are fixedly mounted on one side of the clamping plate, a motor A is rotatably mounted in each of the plurality of first fixed seats, one side of the plurality of motors A is rotatably connected to one side of a plurality of second connecting rods respectively, a first connecting rod is fixedly mounted on one side of one of the mounting plates, and one end of the output shaft of the first connecting rod is fixedly connected to one end of the first rotating shaft.

[0008] In the above technical solution, further, a cavity is provided in the detection table, and a plurality of liquid permeable holes are opened on the top surface of the detection table. The plurality of liquid permeable holes are connected to the extraction pump. When the extraction pump extracts material, excess pigment will enter the cavity through the liquid permeable holes and be stored, so as to facilitate the recovery of excess pigment.

[0009] In the above technical solution, further, a drain pipe is fixedly installed on the bottom surface of the test bench, the drain pipe is connected to the cavity, a valve is provided on the drain pipe, and when the valve is opened, the paint in the cavity is discharged to the outside through the drain pipe, so that the staff can collect excess paint conveniently.

[0010] In the above technical solution, further, a pressure sensor is provided on the bottom surface of the lower pressing block. When the lower pressing block presses down the graphite crucible, the pressure sensor monitors the pressure in real time, thereby recording the pressure resistance value of the graphite crucible.

[0011] In the above technical solution, further, the four corners of the bottom surface of the testing platform are all installed with support legs by bolts, and the stability of the testing platform when placed can be enhanced by providing the support legs.

[0012] In the above technical solution, further, the two movable plates are symmetrically arranged in the U-shaped lifting plate.

[0013] In the above technical solution, further, the adjustment assembly includes a movable rod, an adjustment block is rotatably mounted on the bottom surface of the movable plate, one end of the movable rod is rotatably mounted on the bottom surface of the adjustment block, and the other end of the movable rod is rotatably mounted on the bottom surface of the fixed plate, a motor C is fixedly mounted on the bottom surface of the fixed plate, and the top end of the output shaft of the motor C is fixedly connected to the bottom surface of the connecting plate; A quality inspection method for graphite crucible production comprises the following steps: Step S1, placing a graphite crucible that needs quality inspection on a testing table, and driving two first rotating shafts to rotate by starting two first connecting rods. When the two first rotating shafts rotate, the cooperation of multiple second connecting rods, multiple motors A, and multiple first fixing seats drives two clamping plates to move, and the distance between the two clamping plates is adjusted so that the two clamping plates clamp and fix the graphite crucible; Step S2, when detecting cracks on the surface of the graphite crucible, start one of the adjustment components to drive one of the movable plates to rotate, so that the extraction pump rotates to the top of the graphite crucible, and then start the motor B to drive the second rotating shaft to rotate. When the second rotating shaft rotates, the lifting platform is driven to descend through the cooperation of the first moving rod, the second moving rod and the second fixed seat, so that the discharge pipe is close to the graphite crucible, and the extraction pump is started to extract the pigment in the pigment storage box through the feeding hose, and then discharged through the discharge pipe. The dye is drained to the inside of the graphite crucible. When the pigment fully penetrates the gap in the graphite crucible, the excess pigment is poured out. At this time, different colors can be used to quickly judge whether there is a gap in the graphite crucible; Step S3, when inspecting the quality of the graphite crucible, start another set of adjustment components to drive another movable plate to rotate, so that the lower pressure block rotates to the top of the graphite crucible. At this time, the lower pressure block is driven down by the lifting component. Since a pressure sensor is provided at the bottom of the lower pressure block, the pressure sensor can monitor the pressure resistance of the graphite crucible in real time.

[0014] The beneficial effects of the present invention are: 1. The quality inspection device and method for graphite crucible production, when detecting cracks on the surface of the graphite crucible, start one of the adjustment components to drive one of the movable plates to rotate, so that the extraction pump rotates to the top of the graphite crucible, and then start the motor B to drive the second rotating shaft to rotate. When the second rotating shaft rotates, the lifting platform is driven to descend through the cooperation of the first moving rod, the second moving rod and the second fixed seat, so that the discharge pipe is close to the graphite crucible, and the extraction pump is started to extract the pigment in the pigment storage box through the feeding hose, and then discharged through the discharge pipe. The dye is drained to the inside of the graphite crucible. When the pigment fully penetrates the gap in the graphite crucible, the excess pigment is poured out. At this time, different colors can be used to quickly judge whether there is a gap in the graphite crucible.

[0015] 2. The quality inspection device and method for graphite crucible production, when inspecting the quality of the graphite crucible, start another set of adjustment components to drive another movable plate to rotate, so that the lower pressure block rotates to the top of the graphite crucible. At this time, the lower pressure block is driven down by the lifting component. Since a pressure sensor is provided at the bottom of the lower pressure block, the pressure sensor can monitor the pressure resistance of the graphite crucible in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the lifting platform structure of the present invention; Figure 4 It is a schematic diagram of the cavity structure of the present invention; Figure 5 It is one of the schematic diagrams of the U-shaped lifting plate structure of the present invention; Figure 6 This is the second schematic diagram of the U-shaped lifting plate structure of the present invention; Figure 7 This is the third schematic diagram of the U-shaped lifting plate structure of the present invention.

[0017] The symbols in the figure are: 1. Inspection table; 2. Slide bar; 3. Top table; 4. Lifting table; 5. Clamping plate; 6. Support leg; 7. U-shaped lifting plate; 8. Fixed plate; 9. Connecting plate; 10. Movable plate; 11. Movable rod; 12. Adjusting block; 13. Motor C; 14. Mounting rod; 15. Pressing block; 16. Pump; 17. Liquid permeable hole; 18. Mounting plate; 19. First rotating shaft; 20. First connecting rod; 21. Second connecting rod; 22. Motor A; 23. First fixed seat; 24. Side plate; 25. Second rotating shaft; 26. Motor B; 27. First moving rod; 28. Second moving rod; 29. ​​Second fixed seat; 30. Drain pipe; 31. Valve; 32. Discharge pipe; 33. Paint storage box; 34. Feeding hose; 35. Cavity. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the examples described are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0022] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0023] Embodiment 1:

[0024] See also Figure 1 - Figure 7 As shown, this embodiment provides a quality inspection device for graphite crucible production.

[0025] The invention comprises: a testing platform 1, a plurality of slide bars 2 are fixedly installed on the top surface of the testing platform 1, a same top platform 3 is fixedly installed on the top ends of the plurality of slide bars 2, a lifting platform 4 is slidably installed on the plurality of slide bars 2, the lifting platform 4 is located above the testing platform 1, a U-shaped lifting plate 7 is fixedly installed on the bottom surface of the lifting platform 4, a fixed plate 8 is fixedly installed on both sides of the inner part of the U-shaped lifting plate 7, a connecting plate 9 is rotatably installed on the two fixed plates 8, and a movable plate 10 is rotatably installed on the top surfaces of the two connecting plates 9; two groups of adjustment components, the two groups of adjustment components are respectively arranged on the two fixed plates 8, and are used to drive the two movable plates 10 to rotate, a movable rod 11, an adjustment block 12 is rotatably installed on the bottom surface of the movable plate 10, one end of the movable rod 11 is rotatably installed on the bottom surface of the adjustment block 12, and the other end of the movable rod 11 is rotatably installed on the bottom surface of the fixed plate 8, a motor C13 is fixedly installed on the bottom surface of the fixed plate 8, and the motor C The top end of the output shaft 13 is fixedly connected to the bottom surface of the connecting plate 9; the mounting rod 14, the mounting rod 14 is fixedly mounted on one side of one of the movable plates 10, the bottom end of the mounting rod 14 is installed with a pressing block 15 by bolts, and a suction pump 16 is fixedly mounted on one side of the other movable plate 10, and a discharge pipe 32 is provided on the bottom surface of the suction pump 16; a lifting component, the lifting component is arranged on the lifting platform 4, and is used to drive the lifting platform 4 to rise and fall; two clamping plates 5, the two clamping plates 5 are slidably mounted on the top surface of the detection platform 1; two groups of movable components, the two groups of movable components are arranged on the top surface of the detection platform 1, and are used to drive the two clamping plates 5 to move, and the starting motor C13 drives the connecting plate 9 to rotate. When the connecting plate 9 rotates, the movable plate 10 will be driven to rotate through the cooperation of the adjusting block 12 and the movable rod 11, thereby controlling the expansion and closing of the movable plate 10, which is convenient for the use of the pressing block 15 and the suction pump 16.

[0026] Embodiment 2:

[0027] This embodiment provides a quality inspection device for graphite crucible production, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Among them, the lifting assembly includes two side plates 24, the two side plates 24 are fixedly installed on the bottom surface of the top platform 3, the same second rotating shaft 25 is rotatably installed between the two side plates 24, and multiple first moving rods 27 are fixedly installed on the second rotating shaft 25. Multiple second fixed seats 29 are fixedly installed on the top surface of the lifting platform 4, and second moving rods 28 are rotatably installed in multiple second fixed seats 29. One side of the multiple second moving rods 28 is respectively rotatably connected with one side of the multiple first moving rods 27. A motor B26 is fixedly installed on one side of one side of the side plates 24, and one end of the output shaft of the motor B26 is fixedly connected with one end of the second rotating shaft 25. The motor B26 is started to drive the second rotating shaft 25 to rotate. When the second rotating shaft 25 rotates, the lifting platform 4 is driven to descend through the cooperation of the first moving rod 27, the second moving rod 28 and the second fixed seat 29, so that the discharge pipe 32 and the lower pressure block 15 are close to the graphite crucible for detection.

[0029] Embodiment 3:

[0030] This embodiment provides a quality inspection device for graphite crucible production, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] Among them, the movable component includes two mounting plates 18, the two mounting plates 18 are fixedly installed on the top surface of the detection platform 1, a first rotating shaft 19 is rotatably installed between the two mounting plates 18, a plurality of second connecting rods 21 are fixedly installed on the first rotating shaft 19, a plurality of first fixed seats 23 are fixedly installed on one side of the clamping plate 5, a motor A22 is rotatably installed in each of the plurality of first fixed seats 23, one side of the plurality of motors A22 is respectively rotatably connected to one side of the plurality of second connecting rods 21, a first connecting rod 20 is fixedly installed on one side of one of the mounting plates 18, and one end of the output shaft of the first connecting rod 20 is fixedly connected to one end of the first rotating shaft 19.

[0032] Embodiment 4:

[0033] This embodiment provides a quality inspection device for graphite crucible production, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] Among them, a cavity 35 is provided in the testing table 1, and a plurality of liquid permeable holes 17 are opened on the top surface of the testing table 1. The plurality of liquid permeable holes 17 are connected to the extraction pump 16. When the extraction pump 16 extracts the material, the excess pigment will enter the cavity 35 through the liquid permeable holes 17 and be stored, so as to facilitate the recovery of the excess pigment.

[0035] Embodiment 5:

[0036] This embodiment provides a quality inspection device for graphite crucible production, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] Among them, a drain pipe 30 is fixedly installed on the bottom surface of the testing platform 1, and the drain pipe 30 is connected to the cavity 35. A valve 31 is provided on the drain pipe 30. When the valve 31 is opened, the paint in the cavity 35 is discharged to the outside through the drain pipe 30, which is convenient for the staff to collect excess paint.

[0038] A pressure sensor is provided on the bottom surface of the lower pressing block 15. When the lower pressing block 15 presses down the graphite crucible, the pressure sensor monitors the pressure in real time, thereby recording the pressure resistance value of the graphite crucible.

[0039] Among them, the four corners of the bottom surface of the testing platform 1 are all installed with support legs 6 through bolts. The support legs 6 are provided to enhance the stability of the testing platform 1 when it is placed.

[0040] The two movable plates 10 are symmetrically arranged inside the U-shaped lifting plate 7 .

[0041] Among them, the adjustment component includes a movable rod 11, an adjustment block 12 is rotatably installed on the bottom surface of the movable plate 10, one end of the movable rod 11 is rotatably installed on the bottom surface of the adjustment block 12, and the other end of the movable rod 11 is rotatably installed on the bottom surface of the fixed plate 8. A motor C13 is fixedly installed on the bottom surface of the fixed plate 8, and the top end of the output shaft of the motor C13 is fixedly connected to the bottom surface of the connecting plate 9.

[0042] Embodiment 6:

[0043] This embodiment provides a quality inspection method for graphite crucible production, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] The following steps are involved: Step S1, placing a graphite crucible that needs quality inspection on the inspection table 1, and driving the two first rotating shafts 19 to rotate by starting the two first connecting rods 20. When the two first rotating shafts 19 rotate, the cooperation of the multiple second connecting rods 21, the multiple motors A22 and the multiple first fixing seats 23 will drive the two clamping plates 5 to move, and adjust the distance between the two clamping plates 5 so that the two clamping plates 5 clamp and fix the graphite crucible; Step S2, when detecting cracks on the surface of the graphite crucible, start one of the adjustment components to drive one of the movable plates 10 to rotate, so that the extraction pump 16 rotates to the top of the graphite crucible, and then start the motor B26 to drive the second rotating shaft 25 to rotate. When the second rotating shaft 25 rotates, the lifting platform 4 is driven to descend through the cooperation of the first moving rod 27, the second moving rod 28, and the second fixed seat 29, so that the discharge pipe 32 is close to the graphite crucible, and the extraction pump 16 is started to extract the pigment in the pigment storage box 33 through the feeding hose 34, and then discharge it through the discharge pipe 32. The dye is drained to the inside of the graphite crucible. When the pigment fully penetrates the gap in the graphite crucible, the excess pigment is poured out. At this time, different colors can be used to quickly judge whether there is a gap in the graphite crucible; Step S3, when inspecting the quality of the graphite crucible, start another set of adjustment components to drive another movable plate 10 to rotate, so that the lower pressing block 15 is rotated to the top of the graphite crucible. At this time, the lower pressing block 15 is driven down by the lifting component. Since a pressure sensor is provided at the bottom of the lower pressing block 15, the pressure sensor can monitor the pressure resistance of the graphite crucible in real time.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A quality inspection device for graphite crucible production, characterized in that: include: A testing platform (1), wherein a plurality of sliding bars (2) are fixedly mounted on the top surface of the testing platform (1), a top platform (3) is fixedly mounted on the top ends of the plurality of sliding bars (2), a lifting platform (4) is slidably mounted on the plurality of sliding bars (2), the lifting platform (4) is located above the testing platform (1), a U-shaped lifting plate (7) is fixedly mounted on the bottom surface of the lifting platform (4), a fixed plate (8) is fixedly mounted on both sides of the interior of the U-shaped lifting plate (7), a connecting plate (9) is rotatably mounted on the two fixing plates (8), and a movable plate (10) is rotatably mounted on the top surfaces of the two connecting plates (9); Two groups of adjustment components, the two groups of adjustment components are respectively arranged on two fixed plates (8) and are used to drive two movable plates (10) to rotate, the adjustment components include a movable rod (11), an adjustment block (12) is rotatably mounted on the bottom surface of the movable plate (10), one end of the movable rod (11) is rotatably mounted on the bottom surface of the adjustment block (12), and the other end of the movable rod (11) is rotatably mounted on the bottom surface of the fixed plate (8), a motor C (13) is fixedly mounted on the bottom surface of the fixed plate (8), and the top end of the output shaft of the motor C (13) is fixedly connected to the bottom surface of the connecting plate (9); A mounting rod (14), the mounting rod (14) being fixedly mounted on one side of one of the movable plates (10), a lower pressing block (15) being mounted on the bottom end of the mounting rod (14) via bolts, and a material extraction pump (16) being fixedly mounted on one side of the other movable plate (10), a discharge pipe (32) being provided on the bottom surface of the material extraction pump (16); A lifting component, the lifting component is arranged on the lifting platform (4) and is used to drive the lifting platform (4) to move up and down; Two clamping plates (5), the two clamping plates (5) being slidably mounted on the top surface of the detection platform (1); Two groups of movable components, the two groups of movable components are arranged on the top surface of the detection platform (1) and are used to drive the two clamping plates (5) to move; A pressure sensor is provided on the bottom surface of the lower pressing block (15).

2. A quality inspection device for graphite crucible production according to claim 1, characterized in that: The lifting assembly comprises two side plates (24), the two side plates (24) being fixedly mounted on the bottom surface of the top platform (3), a second rotating shaft (25) being rotatably mounted between the two side plates (24), a plurality of first moving rods (27) being fixedly mounted on the second rotating shaft (25), a plurality of second fixed seats (29) being fixedly mounted on the top surface of the lifting platform (4), a second moving rod (28) being rotatably mounted in each of the plurality of second fixed seats (29), one side of the plurality of second moving rods (28) being respectively rotatably connected to one side of the plurality of first moving rods (27), a motor B (26) being fixedly mounted on one side of one of the side plates (24), one end of an output shaft of the motor B (26) being fixedly connected to one end of the second rotating shaft (25).

3. A quality inspection device for graphite crucible production according to claim 1, characterized in that: The movable component comprises two mounting plates (18), the two mounting plates (18) being fixedly mounted on the top surface of the detection platform (1), a first rotating shaft (19) being rotatably mounted between the two mounting plates (18), a plurality of second connecting rods (21) being fixedly mounted on the first rotating shaft (19), a plurality of first fixing seats (23) being fixedly mounted on one side of the clamping plate (5), a motor A (22) being rotatably mounted in each of the plurality of first fixing seats (23), one side of the plurality of motors A (22) being rotatably connected to one side of the plurality of second connecting rods (21), a first connecting rod (20) being fixedly mounted on one side of one of the mounting plates (18), one end of an output shaft of the first connecting rod (20) being fixedly connected to one end of the first rotating shaft (19).

4. A quality inspection device for graphite crucible production according to claim 1, characterized in that: A cavity (35) is provided in the detection platform (1), and a plurality of liquid permeable holes (17) are provided on the top surface of the detection platform (1). The plurality of liquid permeable holes (17) are connected to the material extraction pump (16).

5. The quality inspection device for graphite crucible production according to claim 1, characterized in that: A drainage pipe (30) is fixedly mounted on the bottom surface of the detection platform (1); the drainage pipe (30) is in communication with the cavity (35); and a valve (31) is provided on the drainage pipe (30).

6. A quality inspection device for graphite crucible production according to claim 1, characterized in that: Support legs (6) are mounted on the four corners of the bottom surface of the testing platform (1) via bolts.

7. A quality inspection device for graphite crucible production according to claim 1, characterized in that: The two movable plates (10) are symmetrically arranged inside the U-shaped lifting plate (7).

8. A method for quality inspection of graphite crucible production, used in a quality inspection device for graphite crucible production as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, placing a graphite crucible to be inspected for quality on a testing table (1), and starting two first connecting rods (20) to drive two first rotating shafts (19) to rotate. When the two first rotating shafts (19) rotate, the cooperation of a plurality of second connecting rods (21), a plurality of motors A (22), and a plurality of first fixing seats (23) drives two clamping plates (5) to move, and adjusting the spacing between the two clamping plates (5) so that the two clamping plates (5) clamp and fix the graphite crucible; Step S2, when detecting cracks on the surface of the graphite crucible, start one of the adjustment components to drive one of the movable plates (10) to rotate, so that the extraction pump (16) rotates to the top of the graphite crucible. At this time, the motor B (26) is started to drive the second rotating shaft (25) to rotate. When the second rotating shaft (25) rotates, the lifting platform (4) is driven to descend through the cooperation of the first moving rod (27), the second moving rod (28) and the second fixed seat (29), so that the discharge pipe (32) is close to the graphite crucible, and the extraction pump (16) is started to extract the pigment in the pigment storage box (33) through the feeding hose (34), and then discharge it through the discharge pipe (32). The dye is drained to the inside of the graphite crucible. When the pigment fully penetrates the gap in the graphite crucible, the excess pigment is poured out. At this time, different colors can be used to quickly judge whether there is a crack in the graphite crucible; Step S3, when inspecting the quality of the graphite crucible, another set of adjustment components is started to drive another movable plate (10) to rotate, so that the lower pressing block (15) is rotated to the top of the graphite crucible. At this time, the lower pressing block (15) is driven down by the lifting component. Since a pressure sensor is provided at the bottom of the lower pressing block (15), the pressure sensor can monitor the pressure resistance of the graphite crucible in real time.

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