Cast-weld mold lead liquid temperature difference precision measurement tooling

Abstract

The utility model discloses a cast -weld mould lead liquid temperature difference precision measurement frock belongs to lead -acid battery pole group cast -weld technical field. It mainly is the lead liquid temperature and temperature difference measurement of each cast -weld cavity in existing cast -weld mould exists and consumes long time and temperature measurement inaccurate problem. Its main characteristics are: by temperature measurement frame and the thermocouple of being installed on temperature measurement frame constitute, wherein, the thermocouple number is same with the cast -weld cavity number in cast -weld mould, and each thermocouple sets up on temperature measurement frame according to the relative position of each cast -weld cavity in cast -weld mould. The utility model has the characteristics of temperature measurement accurate and measurement efficiency high to can measure the lead liquid temperature and temperature difference in each cast -weld cavity of cast -weld mould simultaneously, is mainly used in the measurement of lead liquid temperature in each cast -weld cavity of cast -weld mould in lead -acid battery pole group cast -weld process.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery electrode group casting and welding technology, specifically relating to a measuring tool for measuring and determining the temperature difference of lead liquid in each casting and welding cavity of the electrode group casting and welding mold. Background Technology

[0002] In the lead-acid battery electrode group casting and welding process (the process of welding the encapsulated positive and negative electrode plates together in parallel using a casting and welding method), casting and welding molds are required. For example... Figure 1 As shown, molten lead, heated in a lead pot, enters the horizontal end block 2 through the horizontal end interface 8 of the casting mold via a lead pump. It then flows along the internal channels into the left and right lead supply pipes 1 and 3 on either side. The molten lead in the two supply pipes overflows from the pump lead hole 5 as the pump starts, entering the lead channel 4. The lead channel 4 is an upward-opening structure connected to the pouring gate 6. Once the liquid level in the pouring gate 6 rises to a certain level, the molten lead enters the casting cavity 7 through the pouring gate 6 and cools to solidify. The mold also contains heating pipes to maintain the temperature of the horizontal end block 2, left lead supply pipe 1, and right lead supply pipe 3. Water-cooling pipes are also present to cool the casting cavity 7, but are not shown in the figure.

[0003] During equipment use, the temperature of the molten lead entering the casting and welding cavity 7 is crucial to the casting and welding quality. It is necessary to use a handheld thermocouple to measure the temperature of the molten lead in the 12 cavities to ensure that the temperature and temperature difference meet the standards.

[0004] Each measurement of the lead liquid temperature just entering the casting cavity 7 takes 5-10 seconds. Not only is it time-consuming to measure all 12 cavities, but due to the cooling of the mold cavities, the measured temperature in the later cavities will be much lower than the temperature when the lead liquid just entered the casting cavity 7. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for accurately measuring the temperature difference of lead liquid in casting and welding molds, thereby solving the problems of inaccurate temperature measurement and long time consumption in the existing measurement of the temperature and temperature difference of lead liquid in each casting and welding cavity of casting and welding molds.

[0006] The technical solution of this utility model is: a tooling for precise measurement of the temperature difference of lead liquid in a casting and welding mold, characterized in that: it consists of a temperature measuring frame and thermocouples mounted on the temperature measuring frame; wherein, the number of thermocouples is the same as the number of casting and welding cavities in the casting and welding mold, and each thermocouple is arranged on the temperature measuring frame according to the relative position of each casting and welding cavity in the casting and welding mold.

[0007] The temperature measuring frame described in the technical solution of this utility model consists of two temperature measuring frame bars and a temperature measuring frame connecting bar connected between the two temperature measuring frame bars.

[0008] In the technical solution of this utility model, the number of temperature measuring frame connecting strips is half the number of thermocouples; the thermocouples are set on the temperature measuring frame straight strips at both ends of the temperature measuring frame connecting strips.

[0009] In the technical solution of this utility model, the outer side of the straight bar of the temperature measuring frame is set on the handle of the temperature measuring frame.

[0010] The handle in the technical solution of this utility model is composed of a straight rod in the middle and support rods on both sides.

[0011] In the technical solution of this utility model, the temperature measuring frame is provided with positioning bolts at both ends, located at the edge of the two sides of the casting and welding cavity.

[0012] In the technical solution of this utility model, both ends of the two temperature measuring rack straight bars are provided with positioning bolts, which are located at the edge of the two side casting and welding cavities.

[0013] In the technical solution of this utility model, the length from the bottom of the positioning bolt to the straight bar of the temperature measuring frame is greater than the length from the bottom of the thermocouple to the straight bar of the temperature measuring frame.

[0014] The thermocouple in the technical solution of this utility model consists of a thermocouple probe, a thermocouple blocking block, a nut, and thermocouple wires; the upper part of the thermocouple probe is provided with a thermocouple fixing thread.

[0015] The temperature measuring frame in the technical solution of this utility model is made of aluminum alloy; there are 12 thermocouples.

[0016] This invention employs a precision measuring fixture for the temperature difference of molten lead in a casting mold, consisting of a temperature measuring frame and thermocouples mounted on the frame. The number of thermocouples is the same as the number of casting cavities within the mold, and each thermocouple is positioned relative to the corresponding cavity on the temperature measuring frame. Therefore, when measuring and determining the temperature and temperature difference of the molten lead in each cavity, once the required molten lead is injected into each cavity, the measuring fixture is simply placed above each cavity, and the thermocouple probes are inserted into their respective cavities. The temperature measuring device connected to the thermocouple wires can then simultaneously measure the temperature of the molten lead in each cavity, allowing for the determination of whether the temperature and temperature difference within each cavity are abnormal.

[0017] This invention features the ability to simultaneously measure the temperature and temperature difference of molten lead in each casting cavity of the casting mold, with accurate temperature measurement and high measurement efficiency. It is mainly used for measuring the temperature of molten lead in each casting cavity of the casting mold during the casting and welding process of lead-acid battery electrode groups. Attached Figure Description

[0018] Figure 1 This is a top view of the casting and welding mold.

[0019] Figure 2 This is a front view of the present invention (the thermocouple wires are not shown).

[0020] Figure 3 This is a top view of the present invention (thermocouple wires are not shown).

[0021] Figure 4 for Figure 2 Partial view A of this utility model.

[0022] Figure 5 for Figure 3 Partial view B of this utility model.

[0023] Figure 6 This is a top view of the present invention after it has been placed on the casting mold.

[0024] Figure 7 This is a front view of the thermocouple of this utility model.

[0025] Appendix: 1-Left lead pipe; 2-Horizontal end block; 3-Right lead pipe; 4-Lead channel; 5-Pump lead hole; 6-Lead pouring gate column; 7-Cast welding cavity; 8-Horizontal end interface; 9-Temperature measuring frame straight bar; 10-Temperature measuring frame connecting bar; 11-Temperature measuring frame handle; 12-Thermocouple probe; 13-Screw; 14-Nut; 15-Thermocouple blocking block; 16-Thermocouple wire; 17-Bolt head; 18-Thermocouple fixing thread. Detailed Implementation

[0026] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0027] like Figures 2 to 7 As shown, one embodiment of the present invention is a tooling for accurately measuring the temperature difference of lead liquid in a casting and welding mold, which consists of a temperature measuring frame and a thermocouple mounted on the temperature measuring frame.

[0028] The temperature measuring frame consists of two temperature measuring frame bars 9 and six temperature measuring frame connecting bars 10 connecting the two temperature measuring frame bars 9, and a temperature measuring frame handle 11 is provided on the outer side of the temperature measuring frame bars 9. The temperature measuring frame handle 11 consists of a central straight rod and two supporting rods on both sides.

[0029] The temperature measuring frame straight bar 9, temperature measuring frame connecting bar 10, and temperature measuring frame handle 11 are all made of aluminum alloy sheet with a thickness of about 2mm and a width of about 15mm. All parts are rigidly connected, which can be lightweight while also ensuring strength and preventing them from falling apart.

[0030] Each of the two temperature measuring frame bars 9 has six thermocouples and two positioning bolts. The six thermocouples are evenly arranged on the temperature measuring frame bars 9 at the ends of the temperature measuring frame connecting bars 10, and the two positioning bolts are on both sides of the edge, located at the edge of the two side cast-welded cavities 7.

[0031] The thermocouple includes a thermocouple probe 12, a thermocouple blocking block 15, a thermocouple wire 16 (only a short section is shown in the figure, the actual length is about 2m), and a thermocouple fixing thread 18. After drilling a hole in the temperature measuring frame bar 9, the thermocouple probe 12 is inserted into the hole, and then a nut 14 is installed on the thermocouple fixing thread 18. The nut 14 and the thermocouple blocking block 12 clamp the temperature measuring frame bar 9, thus fixing the thermocouple on the temperature measuring frame bar 9.

[0032] The positioning bolts on both sides, including screws 13 and bolt heads 17, are fixed to the straight bars 9 of the temperature measuring frame in the same way.

[0033] The twelve thermocouples are positioned corresponding to the twelve cast-welded cavities 7, and the four positioning bolts correspond to the edges of the cast-welded cavities 7 on both sides. The tooling is arranged according to... Figure 6 Place the thermocouples into the mold cavity 7. The four positioning bolts on the edge ensure that the twelve thermocouples are basically centered in the casting cavity 7. The screw 13 is about 2mm longer than the thermocouple probe 12 to ensure that the thermocouple probe 12 does not contact the bottom of the casting cavity 7 (contact with the bottom will make the temperature measurement inaccurate).

[0034] Thermocouple wire 16 is fixed to the top of the fixture (using cable ties), with the other end of thermocouple wire 16 converging at the temperature measuring frame handle 11. Twelve thermocouple wires 16 are connected to a 12-channel temperature display and recording device (such as the Meiyi SUP-RN3000 / LN). The device can display the temperatures measured by the 12 thermocouples in real time, enabling rapid and accurate measurement of the lead liquid temperature at 12 points. Data from the temperature display and recording device (temperature recorded once per second) can be exported. The exported data can be used in Excel or other dedicated software to plot the 12-point temperature change curve and the corresponding temperature difference change curve. The curve changes can be used to identify abnormalities in the casting / welding cavity 7, allowing for targeted troubleshooting and improvement.

Claims

1. A tooling for precise measurement of the temperature difference of molten lead in casting and welding molds, characterized in that: It consists of a temperature measuring frame and thermocouples mounted on the temperature measuring frame; wherein, the number of thermocouples is the same as the number of casting cavities (7) in the casting mold, and each thermocouple is set on the temperature measuring frame according to the relative position of each casting cavity (7) in the casting mold.

2. The tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 1, characterized in that: The temperature measuring frame consists of two temperature measuring frame straight bars (9) and a temperature measuring frame connecting bar (10) connecting the two temperature measuring frame straight bars (9).

3. The tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 2, characterized in that: The number of temperature measuring frame connecting strips (10) is half the number of thermocouples; the thermocouples are set on the temperature measuring frame straight strips (9) at both ends of the temperature measuring frame connecting strips (10).

4. A tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 2 or 3, characterized in that: The outer side of the straight bar (9) of the temperature measuring frame is provided with a temperature measuring frame handle (11).

5. The tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 4, characterized in that: The handle (11) consists of a straight rod in the middle and support rods on both sides.

6. The tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 1, characterized in that: The temperature measuring frame is equipped with positioning bolts at both ends, located at the edge of the two sides of the cast-welded cavity (7).

7. A tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 2 or 3, characterized in that: Both ends of the two temperature measuring rack straight bars (9) are equipped with positioning bolts, located at the edge of the two side cast-welded cavities (7).

8. The tooling for precise measurement of lead melt temperature difference in casting and welding molds according to claim 7, characterized in that: The length from the bottom of the positioning bolt to the straight bar (9) of the temperature measuring frame is greater than the length from the bottom of the thermocouple to the straight bar (9) of the temperature measuring frame.

9. A tooling for precise measurement of lead melt temperature difference in casting and welding molds according to any one of claims 1-3, 5-6, and 8, characterized in that: The thermocouple consists of a thermocouple probe (12), a thermocouple blocking block (15), a nut (14), and a thermocouple wire (16); the upper part of the thermocouple probe (12) is provided with a thermocouple fixing thread (18).

10. A tooling for precise measurement of lead melt temperature difference in casting and welding molds according to any one of claims 1-3, 5-6, and 8, characterized in that: The temperature measuring frame is made of aluminum alloy; there are 12 thermocouples.

Images