A soldering iron temperature gauge calibration device

Abstract

The utility model provides a kind of branding iron thermometer calibration device, including shell, shell movably is provided with probe, heat source is placed in shell and is matched with probe, probe is connected with thermometer, and coarse adjustment rod is screw-connected on shell, micro-adjusting rod is screw-connected in coarse adjustment rod, the lower end of micro-adjusting rod is connected with the lower end of probe, coarse adjustment rod and micro-adjusting rod can drive probe to approach or away from heat source when rotating, heat source and thermometer are electrically connected with controller.The device is easy to operate, simple structure, quickly approach heat source can reduce waiting time, improve detection efficiency, slowly contact heat source can ensure that probe and heat source maintain appropriate pressing force between, reduce the reading fluctuation caused by contact pressure not in place or unstable.

Description

Technical Field

[0001] This utility model relates to the field of soldering iron thermometer technology, and specifically to a soldering iron thermometer calibration device. Background Technology

[0002] A soldering iron thermometer is a specialized instrument used to accurately measure the operating temperature of soldering irons (or hot air guns, soldering stations, and other soldering tools). Its core function is to convert the real-time temperature of the soldering iron into readable data through direct or indirect contact with the soldering tip. This helps users verify whether the soldering iron temperature meets the soldering process requirements, avoiding soldering quality problems caused by excessively high or low temperatures. It is a key auxiliary device for ensuring process stability and product reliability in scenarios such as electronics manufacturing, circuit repair, and precision soldering.

[0003] Patent CN 213022049 U discloses a calibration device for an electric soldering iron thermometer, including a temperature sensor, a temperature probe, a heat-conducting element, a handle, a heater, and a controller. The temperature sensor is located inside the temperature probe, the temperature probe is connected to the heat-conducting element, the heat-conducting element is connected to the handle, and the handle is equipped with a heater. The heater is used to generate heat and transfer it to the temperature probe through the heat-conducting element. The controller is electrically connected to the temperature sensor and the heater. The controller is used to adjust the heat output of the heater according to the detection result of the temperature sensor so that the temperature of the temperature probe is within a preset range.

[0004] However, the device still has the following problems: when calibrating the thermometer, it is impossible to adjust the angle and force between the probe and the heat source, which can easily lead to measurement errors; at the same time, changes in the external environment during calibration can easily cause measurement instability. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, a soldering iron thermometer calibration device is provided to solve the problems mentioned in the above technical background.

[0006] The technical solution adopted by this utility model to solve its technical problem is: This utility model proposes a soldering iron thermometer calibration device, including a housing, a probe movably mounted on the housing, a heat source that cooperates with the probe placed inside the housing, a thermometer connected to the probe, a coarse adjustment rod threaded onto the housing, a fine adjustment rod threaded onto the coarse adjustment rod, the lower end of the fine adjustment rod connected to the probe, and the coarse adjustment rod and the fine adjustment rod rotating can move the probe closer to or away from the heat source, and a controller is electrically connected to the heat source and the thermometer.

[0007] Preferably, a sliding sleeve is provided on the outer side of the probe, the sliding sleeve is slidably connected to the housing, the sliding sleeve is connected to the housing through a compression spring, and the lower end of the fine-tuning rod abuts against the lower end of the sliding sleeve.

[0008] Preferably, the upper end of the probe is fixed with a sliding rod, and the sliding rod has a space for accommodating the thermometer.

[0009] Preferably, the slide rod has a limiting groove, and the slide sleeve has a limiting rod that can slide freely into the limiting groove. The limiting rod is connected to the slide sleeve by a tension spring.

[0010] Preferably, the limiting groove is annular.

[0011] Preferably, the periphery of the housing extends upward to form a windproof shield.

[0012] Preferably, the upper end of the windproof cover is fitted with an end cap, the windproof cover has a slot, and the end cap is slidably connected with a locking pin that can slide freely into the slot. The locking pin is connected to the end cap by a spring.

[0013] Preferably, the pitch of the coarse adjustment rod is greater than the pitch of the fine adjustment rod.

[0014] Preferably, the heat source includes a thermostatic block, the thermostatic block is equipped with a temperature sensor, the housing is provided with a heating plate for heating the thermostatic block, and the temperature sensor is connected to the controller.

[0015] Preferably, a fixing plate is fixed to the lower end of the housing, and the fixing plate has fixing holes for fixing the housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a coarse adjustment rod and a fine adjustment rod. The coarse adjustment rod can drive the probe to quickly approach the heat source. After approaching the heat source, the fine adjustment rod is used to drive the probe to move slowly and make contact with the heat source. The rapid approach can reduce the waiting time and improve the detection efficiency. The slow approach and contact with the heat source can ensure that the probe and the heat source maintain a suitable pressing pressure, reducing the reading fluctuation caused by insufficient or unstable contact pressure.

[0017] 2. This utility model is equipped with a limiting rod and a limiting groove. After the coarse adjustment rod and the fine adjustment rod drive the probe to contact the constant temperature block, the limiting rod releases the limiting of the slide rod, allowing the slide rod to slide upward first, then rotate a certain angle, and then slide downward to relock the slide rod with the limiting rod. At this time, the probe re-contacts the heat source. Since the position of the sliding sleeve and the limiting rod remains unchanged, the pressing force remains unchanged. After adjusting the probe angle, the measurement is repeated multiple times to obtain an accurate measurement value, and then calibration is performed. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a cross-sectional view of the present invention (working state one); Figure 4 This is a cross-sectional view of the present invention (working state two); Figure 5 This is a schematic diagram of the slide bar of this utility model; Figure 6 This is a schematic diagram of the controller of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Housing; 2. Probe; 3. Thermometer; 4. Coarse adjustment rod; 5. Fine adjustment rod; 6. Controller; 7. Sliding sleeve; 8. Compression spring; 9. Sliding rod; 10. Limiting groove; 11. Limiting rod; 12. Tension spring; 13. End cap; 14. Slot; 15. Locking pin; 16. Spring; 17. Thermostatic block; 18. Heating plate; 19. Windproof cover. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] refer to Figures 1-6 This embodiment proposes a soldering iron thermometer calibration device, including a housing 1, a probe 2 movably mounted on the housing 1, a heat source that cooperates with the probe 2 placed inside the housing 1, a thermometer 3 connected to the probe 2, a coarse adjustment rod 4 threadedly connected to the housing 1, a fine adjustment rod 5 threadedly connected to the coarse adjustment rod 4, the lower end of the fine adjustment rod 5 connected to the probe 2, and the probe 2 can be moved closer to or away from the heat source when the coarse adjustment rod 4 and the fine adjustment rod 5 are rotated, and a controller 6 is electrically connected to the heat source and the thermometer 3.

[0022] Thermometer 3 is a K(CA) thermocouple sensor with a temperature measurement range of 0-700℃.

[0023] A transparent observation window is also provided on the casing 1.

[0024] By setting the controller 6 to bring the heat source to a suitable temperature, first rotate the coarse adjustment lever 4, which will cause the fine adjustment lever 5 and the probe 2 to quickly approach the heat source. After the probe 2 approaches the heat source, rotate the fine adjustment lever 5 to slowly approach and contact the heat source, maintaining a suitable pressure between the probe 2 and the heat source. Fine adjustment helps to ensure that the probe 2 makes full contact with the heat source, resulting in a more accurate reading. At the same time, it can reduce the possibility of the probe 2 impacting the heat source or being damaged by excessive pressure due to rapid movement.

[0025] The probe 2 is fitted with a sliding sleeve 7 on its outer side. The sliding sleeve 7 is slidably connected to the housing 1. The sliding sleeve 7 is connected to the housing 1 through a compression spring 8. The lower end of the fine adjustment rod 5 abuts against the lower end of the sliding sleeve 7.

[0026] Rotating the fine-tuning lever 5 and the coarse-tuning lever 4 can push the sliding sleeve 7 to slide downwards. At this time, the compression spring 8 is compressed and stores force, thereby generating an upward elastic force, which enables the sliding sleeve 7 to maintain a stable height.

[0027] The upper end of the probe 2 is fixed with a slide rod 9, and the slide rod 9 has a space for accommodating the thermometer 3.

[0028] A limiting groove 10 is provided on the slide rod 9, and a limiting rod 11 that can slide freely into the limiting groove 10 is slidable on the slide sleeve 7. The limiting rod 11 is connected to the slide sleeve 7 through a tension spring 12.

[0029] When the coarse adjustment lever 4 and the fine adjustment lever 5 drive the sliding sleeve 7 to slide downwards, the sliding sleeve 7 drives the sliding rod 9 to move synchronously through the limit lever 11.

[0030] The limiting groove 10 is annular.

[0031] The annular limiting groove 10 ensures that after the slide rod 9 rotates to a certain angle, the limiting rod 11 can slide into the limiting groove 10 to lock the slide rod 9.

[0032] The shell 1 extends upward around its perimeter to form a windproof shield 19.

[0033] The wind shield 19 can effectively reduce measurement errors caused by changes in surface properties and ambient temperature.

[0034] The windproof cover 19 is fitted with an end cap 13 at its upper end. The windproof cover 19 has a slot 14. The end cap 13 is slidably connected with a locking pin 15 that can slide freely into the slot 14. The locking pin 15 is connected to the end cap 13 by a spring 16.

[0035] The sliding sleeve 7 is slidably connected to the end cover 13, and the coarse adjustment rod 4 is threadedly connected to the end cover 13.

[0036] The pitch of the coarse adjustment lever 4 is greater than the pitch of the fine adjustment lever 5.

[0037] The larger the pitch, the longer the distance traveled along the axis when rotating by the same angle.

[0038] The heat source includes a thermostatic block 17, which is equipped with a temperature sensor. A heating plate 18 for heating the thermostatic block 17 is installed inside the housing 1. The temperature sensor is connected to the controller 6.

[0039] The heating plate 18 is connected to the controller 6.

[0040] The temperature sensor is placed inside the constant temperature block 17. It is a K-type temperature sensor with a temperature range of 0-600℃, a diameter of 7mm, and a length of 50mm.

[0041] A fixing plate is fixed to the lower end of the housing 1, and fixing holes for fixing the housing 1 are provided on the fixing plate. Detailed implementation method: S1: Place the thermometer 3 to be calibrated into the slide bar 9 so that the thermometer 3 contacts the probe 2. Then insert the slide bar 9 into the sliding sleeve 7 until the limiting rod 11 slides into the limiting groove 10 to lock the relative sliding between the slide bar 9 and the sliding sleeve 7. S2: The controller 6 controls the heating plate 18 to heat the constant temperature block 17. The temperature sensor inside the constant temperature block 17 detects the temperature of the constant temperature block 17. After reaching the specified temperature, the controller 6 controls the heating plate 18 to stop heating or lower the temperature of the heating plate 18 to keep the constant temperature block 17 warm and maintain the temperature of the constant temperature block 17 stable. S3: First, rotate the coarse adjustment lever 4 so that the sliding sleeve 7 drives the probe 2 to quickly approach the constant temperature block 17. After observing through the observation window that the probe 2 is close to the constant temperature block 17, stop rotating the coarse adjustment lever 4. At this time, the operator holds the coarse adjustment lever 4 with one hand to prevent it from rotating, and rotates the fine adjustment lever 5 with the other hand so that the probe 2 slowly contacts the constant temperature block 17 and generates a certain pressure between it and the constant temperature block 17. Then wait for the reading on the controller 6 to stabilize before reading the temperature of the thermometer 3. S4: Pull out the limiting rod 11 to slide out of the limiting groove 10, releasing the lock on the sliding rod 9. Then pull the sliding rod 9 upward to rotate it a certain angle. Hold the sliding rod 9 with one hand and push it downward with the other hand until the limiting rod 11 slides back into the limiting groove 10 to lock the sliding of the sliding rod 9. Then wait for the reading on the controller 6 to stabilize before continuing to read the temperature of the thermometer 3. S5: Repeat step S4, read the readings multiple times to obtain the accurate error of thermometer 3, and then calibrate thermometer 3 through controller 6.

[0043] In S4, the fine-tuning rod 5 pushes the sliding sleeve 7, creating a certain pressure between the probe 2 and the constant temperature block 17. After pulling out the limiting rod 11, the sliding rod 9 rotates a certain angle and slides down again, where it is locked by the limiting rod 11. Since the height of the sliding sleeve 7 has not changed, the pressure between the probe 2 and the constant temperature block 17 after the sliding rod 9 is locked again by the limiting rod 11 is the same as the pressure during the initial contact. Therefore, there is no need to repeatedly adjust the fine-tuning rod 5, which greatly improves the reading efficiency of multiple readings.

[0044] Taking readings from multiple angles can eliminate temperature detection distortion caused by uneven local contact between the probe and the constant temperature block, and at the same time verify the temperature uniformity, thus improving the detection accuracy.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A soldering iron thermometer calibration device, comprising a housing (1), characterized in that, The housing (1) is movably provided with a probe (2). A heat source that cooperates with the probe (2) is placed inside the housing (1). A thermometer (3) is connected to the probe (2). A coarse adjustment rod (4) is threaded on the housing (1). A fine adjustment rod (5) is threaded inside the coarse adjustment rod (4). The lower end of the fine adjustment rod (5) is connected to the end of the probe (2). When the coarse adjustment rod (4) and the fine adjustment rod (5) rotate, they can drive the probe (2) to move closer to or away from the heat source. The heat source and the thermometer (3) are electrically connected to a controller (6).

2. The soldering iron thermometer calibration device according to claim 1, characterized in that, The probe (2) is fitted with a sliding sleeve (7) on its outer side. The sliding sleeve (7) is slidably connected to the housing (1). The sliding sleeve (7) is connected to the housing (1) through a compression spring (8). The lower end of the fine adjustment rod (5) abuts against the lower end of the sliding sleeve (7).

3. The soldering iron thermometer calibration device according to claim 2, characterized in that, The upper end of the probe (2) is fixed with a slide rod (9), and the slide rod (9) has a space for accommodating the thermometer (3).

4. The soldering iron thermometer calibration device according to claim 3, characterized in that, The slide bar (9) has a limiting groove (10), and the slide sleeve (7) has a limiting rod (11) that can slide freely into the limiting groove (10). The limiting rod (11) is connected to the slide sleeve (7) by a tension spring (12).

5. The soldering iron thermometer calibration device according to claim 4, characterized in that, The limiting groove (10) is annular.

6. The soldering iron thermometer calibration device according to claim 1, characterized in that, The shell (1) extends upward around its perimeter to form a windproof cover (19).

7. The soldering iron thermometer calibration device according to claim 6, characterized in that, The windproof cover (19) is fitted with an end cap (13) at its upper end. The windproof cover (19) has a slot (14) on it. The end cap (13) is slidably connected with a pin (15) that can slide freely into the slot (14). The pin (15) is connected to the end cap (13) by a spring (16).

8. The soldering iron thermometer calibration device according to claim 1, characterized in that, The pitch of the coarse adjustment rod (4) is greater than the pitch of the fine adjustment rod (5).

9. A soldering iron thermometer calibration device according to claim 1, characterized in that, The heat source includes a thermostatic block (17), which is equipped with a temperature sensor. The housing (1) contains a heating plate (18) for heating the thermostatic block (17), and the temperature sensor is connected to the controller (6).

10. A soldering iron thermometer calibration device according to claim 1, characterized in that, The lower end of the housing (1) is fixed with a fixing plate, and the fixing plate has fixing holes for fixing the housing (1).

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