Crucible liquid depth measuring tool for counter-pressure casting

Abstract

The utility model relates to the technical field of casting, and discloses a crucible liquid depth measuring tool for differential pressure casting, which comprises a frame body assembly, a measuring rod is arranged on the central axis of the frame body assembly, a positioning plate arranged on the frame body assembly is arranged on one side of the measuring rod, floating assemblies are uniformly arranged at the bottom end of the measuring rod, and the floating assemblies are arranged on the frame body assembly. The frame body assembly is provided with a power assembly used for driving the measuring rod to ascend and descend. According to the device, the floating assembly and the measuring rod are arranged, the wireless control module controls the power assembly to drive the measuring rod to vertically descend, when the measuring rod descends in place and the floating assembly is stabilized on the liquid level, a contacted signal is sent out, the wireless control module receives the signal, and the power assembly is stopped; at the moment, the reading can be intuitively and accurately read through the positioning plate and the measuring rod; the floating assembly floats on the liquid level, so that the measuring tool can be prevented from being burnt and corroded, and the accuracy of measured data is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry technology field especially relates to a difference pressure casting is with crucible liquid depth measurement frock. BACKGROUND

[0002] In industrial production, especially in smelting, casting and other fields, accurate measurement of the liquid depth of molten material in the crucible is crucial. This not only relates to production efficiency and quality, but also directly affects production safety. Therefore, appropriate frock and measurement method need to be used to ensure the accuracy of liquid depth measurement.

[0003] In the existing factory building, because the crucible contains high-temperature metal solution, the metal solution will transfer the temperature to the baffle on the top surface of the crucible through the crucible, causing the baffle to be in a high-temperature state. According to production requirements, the height of the remaining solution in the crucible needs to be measured after the solution in the crucible is removed once. Manual insertion of the liquid level pipe into the measurement under high-temperature environment.

[0004] However, manual measurement has the following problems: the measurement tool is mainly a steel ruler, which will be ablated after contacting the liquid surface, making the scale line at the contact end blurred. The worker then observes whether the contact end of the steel ruler is in contact with the liquid surface by the naked eye and then reads the steel ruler. The blurred scale line and the naked eye observation of the liquid surface contact condition and the reading are extremely easy to cause measurement data error.

[0005] Therefore, it is necessary to solve the above problems by a difference pressure casting crucible liquid depth measurement frock. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a difference pressure casting crucible liquid depth measurement frock to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a difference pressure casting crucible liquid depth measurement frock, including frame body assembly, the center axis of frame body assembly is provided with measuring rod, one side of measuring rod is provided with positioning plate installed on frame body assembly, the bottom of measuring rod is uniformly provided with floating assembly, frame body assembly is provided with power assembly for driving measuring rod to lift;

[0008] The floating assembly includes a floating block, one end of the top surface of the floating block is hinged with a movable rod, the movable rod is hinged to the bottom surface of the measuring rod through a connecting block, and the connecting block is provided with a limiting block for limiting the rotation of the movable rod.

[0009] It also includes a wireless control module, which is signal connected with the electronic components in the power assembly and the floating assembly.

[0010] Preferably, one side of the limiting block close to the movable rod is provided as an inclined surface, and a pressure sensor for detecting the adhesion of the side surface of the movable rod to the inclined surface is arranged on the inclined surface.

[0011] Preferably, the power assembly comprises a motor, the motor is installed on the frame assembly through a right-angle plate, a gear is fixedly connected to an output shaft of the motor, and the gear is installed on the frame assembly through a U-shaped plate.

[0012] Preferably, a side surface of the measuring rod is provided with a rack, the gear is engaged with the rack, and a scale line is arranged on an outer surface of the measuring rod.

[0013] Preferably, the frame assembly comprises a top plate and a bottom plate arranged in parallel, the top plate and the bottom plate are connected through a stand column, and support plates are symmetrically arranged on both sides of the top plate.

[0014] Preferably, the frame assembly is placed on a partition plate, a convex ring is arranged on a bottom surface of the bottom plate, a through hole is arranged in the center of the partition plate, and a recessed platform engaged with the convex ring is arranged on a side surface of the through hole.

[0015] Preferably, the partition plate cover is arranged in a resistance furnace, the resistance furnace is fixedly installed on the ground of a factory building, and a crucible is arranged below the partition plate in the resistance furnace.

[0016] The technical effects and advantages of the utility model are as follows:

[0017] 1. In the utility model, the wireless control module controls the power assembly to drive the measuring rod to vertically descend, when the measuring rod is lowered in place and the floating assembly is stabilized on the liquid surface, a signal of contact is sent, the wireless control module receives the signal, and the power assembly is stopped; at this time, the reading can be directly and accurately read out through the positioning plate and the measuring rod; the floating of the floating assembly on the liquid surface can avoid the burning and corrosion of the measuring tool, and ensure the accuracy of the measurement data.

[0018] 2. In the utility model, when the floating block contacts the liquid surface, the buoyancy drives the floating block to drive the movable rod to rotate to adhere to the limiting block, the wireless control module receives the contact signal, the descent of the measuring rod is stopped through the power assembly, at this time, the measuring rod has been lowered in place, the distance from the bottom surface to the liquid surface has been stabilized, and it is not necessary for personnel to observe the contact of the measuring tool with the liquid surface with naked eyes; the measuring tool can accurately measure the value, and the corrosion caused by the contact with the liquid surface is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2This is a schematic diagram of the structure of this utility model in actual application;

[0021] Figure 3 This is a schematic diagram of the floating component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the frame assembly and power assembly of this utility model;

[0023] Figure 5 This is a schematic diagram showing the state in which the convex ring on the base plate of this utility model and the concave platform in the central through hole of the partition are mutually engaged.

[0024] In the diagram: 1. Frame assembly; 101. Top plate; 102. Support plate; 103. Column; 104. Base plate; 2. Positioning plate; 3. Measuring rod; 4. Power assembly; 401. Motor; 402. Right-angle plate; 403. Gear; 404. U-shaped plate; 5. Floating assembly; 501. Floating block; 502. Movable rod; 503. Connecting block; 504. Limiting block; 6. Partition plate; 7. Crucible; 8. Factory floor; 9. Resistance furnace. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To address the issues that measuring tools primarily use steel rulers, which are prone to corrosion upon contact with the liquid surface and require regular replacement, and that operators must visually determine whether the ruler is in contact with the liquid before taking a reading, which easily leads to measurement errors, the following implementation method is proposed.

[0027] This utility model provides, for example Figures 1 to 5 The fixture shown is for measuring the depth of liquid crucible in differential pressure casting. It includes a frame assembly 1, a measuring rod 3 is arranged on the central axis of the frame assembly 1, a scale line is arranged on the outer surface of the measuring rod 3, a positioning plate 2 is arranged on one side of the measuring rod 3 and mounted on the frame assembly 1, a floating assembly 5 is evenly arranged at the bottom end of the measuring rod 3, a power assembly 4 is arranged on the frame assembly 1 for driving the measuring rod 3 to rise and fall, and a wireless control module is also included. The wireless control module is connected to the electronic components in the power assembly 4 and the floating assembly 5 respectively.

[0028] By setting up the floating component 5 and the measuring rod 3, the wireless control module controls the power component 4 to drive the measuring rod 3 to descend vertically. When the measuring rod 3 has descended to the correct position and the floating component 5 is stable on the liquid surface, it sends a contact signal. The wireless control module receives the signal and stops the power component 4. At this time, the reading can be read intuitively and accurately through the positioning plate 2 and the measuring rod 3. The floating component 5 floats on the liquid surface, which can prevent the measuring tool from being burned or corroded, and ensure the accuracy of the measurement data.

[0029] like Figure 3 As shown, the floating assembly 5 includes a floating block 501. A movable rod 502 is hinged to one end of the top surface of the floating block 501. The movable rod 502 is hinged to the bottom surface of the measuring rod 3 via a connecting block 503. A limiting block 504 is provided on one side of the connecting block 503 to restrict the rotation of the movable rod 502. The side of the limiting block 504 near the movable rod 502 is set as an inclined surface, preferably at 30° or 45°, thereby limiting the rotation angle of the movable rod 502 to 30° or 45°, which facilitates the determination of the length of the movable rod 502. A pressure sensor is provided on the inclined surface to detect the contact between the side of the movable rod 502 and the inclined surface. The wireless control module can receive the signal emitted by the pressure sensor and can also control the start and stop of the motor 401.

[0030] During use, as the entire floating assembly 5 descends, the floating block 501 generates buoyancy upon contact with the liquid surface, causing the floating block 501 to drive the movable rod 502 to rotate until the side of the movable rod 502 contacts the inclined surface of the limiting block 504. The pressure sensor receives pressure and sends a contact signal to the wireless control module, which then stops the descent of the measuring rod 3 and the floating assembly 5.

[0031] When the movable rod 502 rotates to fit against the inclined surface of the limiting block 504, the oblique line where the movable rod 502 is located, the vertical distance between the bottom surface of the measuring rod 3 and the liquid surface, and the vertical projection line of the movable rod 502 form a right triangle. The vertical distance between the bottom surface of the measuring rod 3 and the liquid surface can be set to any integer. Based on this integer and the inclination angle of the inclined surface of the limiting block 504, the length of the movable rod 502 is calculated by substituting it into the trigonometric function formula.

[0032] When the wireless control module receives the contact signal and stops the rotation of motor 401, check the scale line of the measuring rod 3 indicated by the positioning plate 2 and take a reading. Subtract the fixed distance between the positioning plate 2 and the top surface of the partition 6 from this reading, and then add the sum to the integer L. This sum is the distance from the current liquid level to the top surface of the partition 6. Subtract the current liquid level from the top surface of the partition 6 from the fixed distance from the bottom surface of the crucible 7 to the top surface of the partition 6 to obtain the current liquid level depth in the crucible 7.

[0033] By setting a float block 501, when the float block 501 contacts the liquid surface, the buoyancy causes the float block 501 to drive the movable rod 502 to rotate until it fits the limiting block 504. The wireless control module receives the contact signal and stops the descent of the measuring rod 3 through the power component 4. At this time, the measuring rod 3 has descended to the correct position, and the distance between its bottom surface and the liquid surface has stabilized. There is no need for personnel to visually observe the contact between the measuring tool and the liquid surface. This measuring fixture can accurately measure the value and avoid the situation where it is easily corroded by contact with the liquid surface.

[0034] like Figure 4 As shown, the power assembly 4 includes a motor 401, which is mounted on the frame assembly 1 via a right-angle plate 402. The output shaft of the motor 401 is fixedly connected to a gear 403, which is mounted on the frame assembly 1 via a U-shaped plate 404. A rack is provided on the side of the measuring rod 3, and the gear 403 meshes with the rack.

[0035] When in use, the wireless control module sends a command to control the motor 401 to rotate. The motor 401 drives the gear 403 to rotate. The gear 403 drives the measuring rod 3 to rise and fall through the rack on the measuring rod 3, and at the same time drives the floating component 5 to rise and fall as a whole.

[0036] like Figures 2 to 5 As shown, the frame assembly 1 includes a top plate 101 and a bottom plate 104 arranged in parallel. The top plate 101 and the bottom plate 104 are connected by a column 103. Support plates 102 are symmetrically arranged on both sides of the top plate 101. There is a gap between the support plates 102 and the top surface of the partition plate 6, which facilitates the lifting of the entire device through the support plates 102. The frame assembly 1 is placed on the partition plate 6. A protruding ring is provided on the bottom surface of the bottom plate 104. A through hole is provided in the center of the partition plate 6. A recessed platform that fits into the protruding ring is provided on the side of the through hole. The partition plate 6 is installed inside the resistance furnace 9. The resistance furnace 9 is fixedly installed on the factory floor 8. A crucible 7 located below the partition plate 6 is placed inside the resistance furnace 9.

[0037] In use, the operator can move the entire measuring fixture using the support plate 102. The fixture is moved above the partition 6, aligning the floating component 5 with the central through-hole of the partition 6. Then, the fixture is lowered, allowing the bottom end of the measuring rod 3 and the floating component 5 to pass through the central through-hole of the partition 6 into the crucible 7, until the bottom plate 104 is embedded in the central through-hole of the partition 6, i.e., the protruding ring on the bottom plate 104 engages with the recessed platform within the central through-hole. Then, the wireless control module starts the motor 401 to rotate.

[0038] The working principle of this utility model is as follows: First, the measuring fixture is placed in place. The operator moves the measuring fixture as a whole to the top of the partition 6 so that the floating component 5 is aligned with the central through hole of the partition 6. Then, the measuring fixture is lowered so that the bottom end of the measuring rod 3 and the floating component 5 enter the crucible 7 through the central through hole of the partition 6 until the bottom plate 104 is embedded in the central through hole of the partition 6, that is, the convex ring on the bottom plate 104 is engaged with the concave platform in the central through hole.

[0039] Next, the measurement begins. The wireless control module sends a command to control the motor 401 to rotate in the forward direction. The motor 401 drives the gear 403 to rotate. The gear 403 drives the measuring rod 3 to descend through the rack on the measuring rod 3, and at the same time drives the floating component 5 to descend as a whole.

[0040] Then, the measurement stops. As the floating assembly 5 descends as a whole, the floating block 501 generates buoyancy after contacting the liquid surface, causing the floating block 501 to drive the movable rod 502 to rotate until the side of the movable rod 502 contacts the inclined surface of the limit block 504. The pressure sensor is under pressure and sends a contact signal to the wireless control module. The wireless control module stops the forward rotation of the motor 401, and the measuring rod 3 also stops descending.

[0041] Next, take a reading. Observe the scale line of the measuring rod 3 indicated by the positioning plate 2, and take a reading. Subtract the fixed distance between the positioning plate 2 and the top surface of the partition 6 from this reading, and then add it to the vertical distance between the bottom surface of the measuring rod 3 and the liquid surface. The sum is the distance from the current liquid surface to the top surface of the partition 6. Then, subtract the current liquid surface to the top surface of the partition 6 from the fixed distance from the bottom surface of the crucible 7 to the top surface of the partition 6 to obtain the current liquid depth in the crucible 7. The above addition and subtraction relationship can be set as a calculation formula and entered into the wireless control module, so that the current liquid depth can be quickly determined.

[0042] refer to Figure 2 The formula is as follows:

[0043] The fixed distance between the positioning plate 2 and the top surface of the partition 6 is set to a fixed value A;

[0044] The vertical distance between the bottom surface of measuring rod 3 and the liquid surface is set to a fixed value B;

[0045] The fixed distance from the bottom surface of crucible 7 to the top surface of partition 6 is set to a fixed value C;

[0046] The scale reading of the measuring rod 3 indicated by the positioning plate 2 is set to a variable value D;

[0047] The liquid level depth in crucible 7 = fixed value C - (variable value D - fixed value A + fixed value B). Input this formula into the wireless control module, and substitute the variable value D to obtain the liquid level depth.

[0048] Finally, the measurement is completed. A command is sent via the wireless control module to control motor 401 to rotate in reverse. Motor 401 drives gear 403 to rotate, and gear 403 drives the measuring rod 3 to rise via the rack on the measuring rod 3. At the same time, the floating assembly 5 rises to its limit, and then the reverse rotation of motor 401 is stopped. The operator then moves the measuring tool out of the space above partition 6.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling for measuring the depth of liquid in a crucible during differential pressure casting, characterized in that: The frame assembly (1) includes a measuring rod (3) on its central axis, a positioning plate (2) on one side of the measuring rod (3) and a floating assembly (5) evenly distributed at the bottom of the measuring rod (3), and a power assembly (4) for driving the measuring rod (3) to rise and fall. The floating assembly (5) includes a floating block (501), and a movable rod (502) is hinged to one end of the top surface of the floating block (501). The movable rod (502) is hinged to the bottom surface of the measuring rod (3) through a connecting block (503). A limiting block (504) is provided on one side of the connecting block (503) to restrict the rotation of the movable rod (502). It also includes a wireless control module, which is connected to the electronic components in the power assembly (4) and the floating assembly (5) respectively.

2. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 1, characterized in that: The limiting block (504) is set as an inclined surface on the side near the movable rod (502), and a pressure sensor is provided on the inclined surface to detect the contact between the side of the movable rod (502) and the inclined surface.

3. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 1, characterized in that: The power assembly (4) includes a motor (401), which is mounted on the frame assembly (1) via a right-angle plate (402). The output shaft of the motor (401) is fixedly connected to a gear (403), which is mounted on the frame assembly (1) via a U-shaped plate (404).

4. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 3, characterized in that: The measuring rod (3) has a rack on its side, the gear (403) meshes with the rack, and the measuring rod (3) has scale lines on its outer surface.

5. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 1, characterized in that: The frame assembly (1) includes a top plate (101) and a bottom plate (104) arranged in parallel. The top plate (101) and the bottom plate (104) are connected by a column (103). Support plates (102) are symmetrically arranged on both sides of the top plate (101).

6. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 5, characterized in that: The frame assembly (1) is placed on the partition (6), and a protruding ring is provided on the bottom surface of the base plate (104). A through hole is provided in the center of the partition (6), and a recessed platform that fits into the protruding ring is provided on the side of the through hole.

7. The tooling for measuring the depth of liquid in a crucible for differential pressure casting according to claim 6, characterized in that: The partition (6) is installed inside the resistance furnace (9), which is fixedly installed on the factory floor (8). A crucible (7) is placed inside the resistance furnace (9) below the partition (6).

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