A metrological calibration device for a mechanical instrument

Abstract

The utility model discloses a kind of for mechanics instrument's measurement calibration device, belong to mechanics instrument measurement calibration technical field, its technical scheme main points include bottom plate, the both sides of bottom plate top are fixedly connected with support plate, the top between two support plates is fixedly connected with fixed plate, the top of bottom plate is provided with measurement scale body, the top of bottom plate is provided with placing mechanism, the right side of bottom plate top is provided with storage mechanism;The placing mechanism includes placing box, ring and two sliding rods, solve the method for the calibration of existing part to hand-held measurement scale, lift hand-held measurement scale, known standard weight is hung in hand-held measurement scale bottom, after observing hand-held measurement scale value and weight comparison, then calibration is carried out by hand-held measurement scale built-in calibration system, since handheld measurement scale stability is lower, measurement data is prone to fluctuation, the problem of affecting the accuracy of subsequent calibration.

Description

Technical Field

[0001] This utility model relates to the field of metrology and calibration technology of mechanical instruments, and in particular to a metrology and calibration device for mechanical instruments. Background Technology

[0002] Mechanical instruments encompass a broad category of technologies that measure various mechanical quantities, including force, mass, pressure, torque, and acceleration. Their core function is to transform indirect mechanical quantities into readable signals using mechanical principles. A weighing scale, on the other hand, is a specialized piece of equipment within mechanical instruments that focuses on mass measurement. Essentially, it involves the directional measurement and application of gravity. By capturing the weight of an object through a weighing sensor and combining it with gravitational acceleration, it converts the weight into a mass value. This effectively focuses the force measurement technology of mechanical instruments onto the specific scenario of mass measurement. Therefore, weighing scales belong to the category of mechanical instruments and represent the concrete application of mechanical instrument technology in daily and industrial mass measurement.

[0003] The existing method for calibrating handheld scales involves lifting the scale, hanging a known standard weight on its bottom, observing the scale's reading and comparing it to the weight, and then calibrating it using the scale's built-in calibration system. However, handheld scales have low stability, and the measurement data is prone to fluctuations, affecting the accuracy of subsequent calibrations.

[0004] Therefore, a metrological calibration device for mechanical instruments is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a metrological calibration device for mechanical instruments, which can solve the problem that some existing methods for calibrating handheld weighing scales involve lifting the handheld weighing scale, hanging a known standard weight on the bottom of the handheld weighing scale, observing the value of the handheld weighing scale and comparing it with the weight of the weight, and then calibrating through the built-in calibration system of the handheld weighing scale. However, due to the low stability of the handheld weighing scale, the metrological data is prone to fluctuation, which affects the accuracy of subsequent calibration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metrological calibration device for mechanical instruments, comprising a base plate, with support plates fixedly connected to both sides of the top of the base plate, a fixing plate fixedly connected between the tops of the two support plates, a weighing scale body disposed on the top of the base plate, a placement mechanism disposed on the top of the base plate, and a storage mechanism disposed on the right side of the top of the base plate; the placement mechanism comprises a placement box, a hanging ring, and two sliding rods, the bottom of the hanging ring being fixedly connected to the top of the placement box, and the side of the sliding rod near the placement box being fixedly connected to the placement box.

[0007] Preferably, the support plate has a groove inside, and the slide rod is slidably connected inside the groove.

[0008] Preferably, a hook is fixedly connected to the bottom of the fixing plate, the weighing scale body is hung on the surface of the hook, and the hanging ring is hung on the bottom of the weighing scale body.

[0009] Preferably, a handle is fixedly connected to the top of the fixing plate.

[0010] Preferably, the storage mechanism includes a storage box, several weights, and two first magnetic blocks. The bottom of the storage box is fixedly connected to the top of the base plate. The weights are placed inside the storage box. The first magnetic blocks are fixedly connected to the storage box on the side closest to the storage box.

[0011] Preferably, the storage box has a lid on top, the surface of which contacts the inner wall of the storage box, and a pull ring is fixedly connected to the top of the lid.

[0012] Preferably, a second magnetic block is fixedly connected to both the front and rear sides of the box cover, and the bottom of the second magnetic block is magnetically attracted to the top of the first magnetic block.

[0013] Preferably, a rubber anti-slip pad is fixedly connected to the bottom of the base plate, and the number of rubber anti-slip pads is several and they are evenly distributed on the bottom of the base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application establishes a placement mechanism that connects the placement box to the bottom of the weighing scale body via a hanging ring. Combined with the fixed connection between the hanging ring and the placement box, a stable connection between the placement box and the weighing scale is achieved, providing a bearing space for standard weights. Two sliding rods are fixed to the placement box and slidably connected in the grooves inside the support plate. The support plate, fixed plate, and bottom plate form a fixed support structure. This sliding fit restricts the placement box to move only up and down along the grooves, effectively preventing lateral displacement. At the same time, the center points of the hook, the weighing scale body, the hanging ring, and the sliding rods are coplanar, ensuring that the weighing scale body is subjected to coaxial force after the weights are loaded into the placement box. This completely solves the shaking problem caused by the low stability of existing handheld weighing scales, making the data displayed on the weighing scale body stable and providing reliable data support for accurate calibration.

[0016] 2. This application incorporates a storage mechanism with a storage box fixed to the top of the base plate as its core. This mechanism can systematically store several standard weights, preventing them from being lost or confused. It ensures that standard parts of the corresponding weights can be quickly selected as needed during calibration. The lid of the storage box is designed to fit snugly against the inner wall of the box, providing dust and moisture protection and preventing environmental factors from affecting the accuracy of the weights. The pull ring on the top of the lid facilitates quick opening and closing. Furthermore, the second magnetic block of the lid is magnetically attracted to the first magnetic block of the storage box, allowing the lid to be easily opened by overcoming magnetic forces and to close securely. This provides a clean and orderly weight storage environment for the calibration of the weighing scale, further ensuring calibration accuracy. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the metrological calibration device for mechanical instruments according to this utility model;

[0018] Figure 2 This is a three-dimensional connection diagram of the placement mechanism in this utility model;

[0019] Figure 3 This is a three-dimensional connection diagram of the storage mechanism in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the bottom of the fixing plate in this utility model;

[0021] Figure 5 This is a three-dimensional connection diagram of the cover plate and the second magnetic block in this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the bottom of the base plate in this utility model.

[0023] In the diagram, 1. Base plate; 2. Storage mechanism; 201. Storage box; 202. Weight; 203. First magnetic block; 3. Scale body; 4. Support plate; 5. Fixing plate; 6. Placement mechanism; 601. Placement box; 602. Hanging ring; 603. Slide rod; 7. Slide groove; 8. Hook; 9. Handle; 10. Pull ring; 11. Second magnetic block; 12. Box cover; 13. Rubber anti-slip pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 The present invention provides the following technical solution:

[0026] A metrological calibration device for mechanical instruments includes a base plate 1, with support plates 4 fixedly connected to both sides of the top of the base plate 1, and a fixing plate 5 fixedly connected between the tops of the two support plates 4. A weighing scale body 3 is provided on the top of the base plate 1, and a placement mechanism 6 is provided on the top of the base plate 1. A storage mechanism 2 is provided on the right side of the top of the base plate 1. The placement mechanism 6 includes a placement box 601, a hanging ring 602, and two sliding rods 603. The bottom of the hanging ring 602 is fixedly connected to the top of the placement box 601, and the side of the sliding rod 603 near the placement box 601 is fixedly connected to the placement box 601.

[0027] In this embodiment: By using the handle 9 on the top of the fixed plate 5, the base plate 1 is placed on a stable external workbench. Several evenly distributed rubber anti-slip pads 13 on the bottom of the base plate 1 increase friction and prevent the base plate 1 from sliding. Then, the weighing scale body 3 is hung on the hook 8 at the bottom of the fixed plate 5 and fixed. Then, the hanging ring 602 of the placement mechanism 6 is hung on the bottom of the weighing scale body 3. The two sliding rods 603 of the placement mechanism 6 are connected to the placement box 601 and slide in the sliding groove 7 of the support plate 4. The support plate 4 is fixed on both sides of the base plate 1, and the fixed plate 5 is fixed on the top of the support plate 4, restricting the placement box 601 to move only up and down along the sliding groove 7 to prevent lateral displacement. Then, the cover 12 of the storage box 201 of the storage mechanism 2 is opened, and the required standard weight 202 is placed into the placement box 601. 01. The slide bar 603 slides down the slide groove 7. The center points of the hook 8, the weighing scale body 3, the hanging ring 602, and the slide bar 603 are coplanar, ensuring that the weighing scale is subjected to coaxial force, preventing the weighing scale body 3 from shaking, and keeping the displayed data stable. Compare the displayed value of the weighing scale with the standard weight 202. If there is a deviation, one-click calibration or combination key calibration can be performed using the built-in calibration system of the weighing scale. This solves the problem that some existing methods of calibrating handheld weighing scales involve lifting the handheld weighing scale, hanging a known standard weight on the bottom of the handheld weighing scale, observing the value of the handheld weighing scale and comparing it with the weight of the weight, and then calibrating through the built-in calibration system of the handheld weighing scale. However, due to the low stability of the handheld weighing scale, the measurement data is prone to fluctuation, which affects the accuracy of subsequent calibration.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the support plate 4 has a groove 7 inside, and the slide rod 603 is slidably connected inside the groove 7.

[0029] Specifically, such as Figure 4 As shown, a hook 8 is fixedly connected to the bottom of the fixed plate 5, the weighing scale body 3 is hung on the surface of the hook 8, and the hanging ring 602 is hung on the bottom of the weighing scale body 3.

[0030] Specifically, such as Figure 4 As shown, a handle 9 is fixedly connected to the top of the fixed plate 5.

[0031] In this embodiment: the sliding groove 7 inside the support plate 4 slides and engages with the sliding rod 603 of the placement mechanism 6, which restricts the placement box 601 to move only along the direction of the sliding groove 7, avoiding lateral deviation. The hook 8 at the bottom of the fixing plate 5 is used to suspend the weighing scale body 3. The bottom of the weighing scale body 3 is hooked with a hanging ring 602 to connect the placement box 601, so as to achieve a stable connection of the three, ensure coaxiality when under force, and reduce the shaking of the weighing scale body 3. The handle 9 at the top of the fixing plate 5 facilitates the overall movement of the device and improves the flexibility of use.

[0032] Specifically, such as Figure 3 As shown, the storage mechanism 2 includes a storage box 201, several weights 202 and two first magnetic blocks 203. The bottom of the storage box 201 is fixedly connected to the top of the base plate 1. The weights 202 are placed inside the storage box 201. The side of the first magnetic block 203 near the storage box 201 is fixedly connected to the storage box 201.

[0033] Specifically, such as Figure 1 and Figure 5 As shown, the top of the storage box 201 is provided with a box cover 12, the surface of the box cover 12 is in contact with the inner wall of the storage box 201, and a pull ring 10 is fixedly connected to the top of the box cover 12.

[0034] In this embodiment: In the storage mechanism 2, the storage box 201 is fixed on the top of the base plate 1 and can store several standard weights 202 in an orderly manner, which is convenient for selection and use during calibration, and avoids the loss or confusion of the weights 202. The box cover 12 covers the top of the storage box 201, and its surface is in contact with the inner wall of the storage box 201, which can protect the weights 202 from dust and moisture. The pull ring 10 on the top of the box cover 12 facilitates quick opening and closing of the box cover 12, improves the efficiency of weight 202 retrieval, and provides reliable standard parts for the accurate calibration of the weighing scale body 3.

[0035] Specifically, such as Figure 3 and Figure 5 As shown, the front and rear sides of the box cover 12 are fixedly connected with second magnetic blocks 11, and the bottom of the second magnetic blocks 11 is magnetically attracted to the top of the first magnetic block 203.

[0036] Specifically, such as Figure 6 As shown, a rubber anti-slip pad 13 is fixedly connected to the bottom of the base plate 1. The number of rubber anti-slip pads 13 is several and they are evenly distributed on the bottom of the base plate 1.

[0037] In this embodiment: the second magnetic block 11 of the cover 12 is magnetically attracted to the first magnetic block 203 of the storage box 201, which can quickly and securely close the cover 12 and seal the storage box 201. The several evenly distributed rubber anti-slip pads 13 on the bottom of the base plate 1 can increase the friction between the base plate 1 and the external worktable and prevent the base plate 1 from sliding during calibration operations.

[0038] Working principle: First, using the handle 9 fixedly connected to the top of the fixed plate 5, the base plate 1 is placed on a stable external workbench. Several evenly distributed rubber anti-slip pads 13 fixedly connected to the bottom of the base plate 1 increase the friction with the contact surface, preventing the base plate 1 from sliding and providing a stable foundation for subsequent calibration. Then, the weighing scale body 3 is hung on the surface of the hook 8 fixedly connected to the bottom of the fixed plate 5 to suspend and fix the weighing scale body 3. Next, the hanging ring 602 in the placement mechanism 6 is hung on the bottom of the weighing scale body 3. Since the bottom of the hanging ring 602 is fixedly connected to the top of the placement box 601, the connection between the placement box 601 and the weighing scale body 3 is completed. At the same time, the placement... The two sliding rods 603 of mechanism 6 are fixedly connected to the placement box 601, and the sliding rods 603 are slidably connected in the grooves 7 opened inside the support plate 4. The support plate 4 is fixed to the top two sides of the base plate 1, and the fixing plate 5 is fixed to the top of the two support plates 4. This structure allows the placement box 601 to move up and down only along the grooves 7, avoiding lateral displacement. When it is necessary to add a standard weight 202, since the storage box 201 of storage mechanism 2 is fixed to the top right side of the base plate 1, the box cover 12 can be opened by pulling the pull ring 10 on the top of the box cover 12. The surface of the box cover 12 contacts the inner wall of the storage box 201, and the second magnetic blocks 11 on the front and rear sides of the box cover 12 are connected to the first magnetic blocks 2 on the storage box 201. The 03-phase magnetic attraction allows for easy opening by overcoming the magnetic force, and a secure closure via magnetic attraction. After opening the cover 12, several standard weights 202 placed inside the storage box 201 are removed as needed and placed into the placement box 601. Under the weight of the weight 202, the placement box 601 causes the slide rod 603 to slide smoothly down the slide groove 7. Because the center points of the hook 8, the weighing scale body 3, the hanging ring 602, and the slide rod 603 are all located on the same plane, the weighing scale body 3 is ensured to be coaxially stressed, preventing wobbling and ensuring stable data display. Operators can then compare the displayed value with the standard weight of the weight 202. If a deviation exists, one-click calibration can be performed through the built-in calibration system of the weighing scale body 3, or the calibration operation can be completed by entering the calibration system through a combination key. This solves the problem that some existing methods for calibrating handheld weighing scales involve lifting the handheld weighing scale, hanging a known standard weight on the bottom of the handheld weighing scale, observing the value of the handheld weighing scale and comparing it with the weight of the weight, and then calibrating through the built-in calibration system of the handheld weighing scale. Due to the low stability of the handheld weighing scale, the measurement data is prone to fluctuation, which affects the accuracy of subsequent calibration. It should be noted that both the weighing scale body 3 and the weight 202 are existing and published mature technologies, and their basic mechanisms will not be elaborated here.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 metrological calibration device for a mechanical instrument comprising a base plate (1), characterized in that: The base plate (1) has two fixed support plates (4) on both sides of its top, and a fixed plate (5) is fixedly connected between the tops of the two support plates (4). The base plate (1) has a weighing scale body (3) on its top, a placement mechanism (6) on its top, and a storage mechanism (2) on the right side of the top of the base plate (1). The placement mechanism (6) includes a placement box (601), a hanging ring (602), and two sliding rods (603). The bottom of the hanging ring (602) is fixedly connected to the top of the placement box (601), and the side of the sliding rod (603) near the placement box (601) is fixedly connected to the placement box (601).

2. The metrological calibration device for mechanical instruments according to claim 1, characterized in that: The support plate (4) has a groove (7) inside, and the slide rod (603) is slidably connected inside the groove (7).

3. The metrological calibration device for mechanical instruments according to claim 1, characterized in that: The bottom of the fixed plate (5) is fixedly connected to a hook (8), the weighing scale body (3) is hung on the surface of the hook (8), and the hanging ring (602) is hung on the bottom of the weighing scale body (3).

4. A metrological calibration device for mechanical instruments according to claim 1, characterized in that: A handle (9) is fixedly connected to the top of the fixing plate (5).

5. A metrological calibration device for mechanical instruments according to claim 1, characterized in that: The storage mechanism (2) includes a storage box (201), several weights (202) and two first magnetic blocks (203). The bottom of the storage box (201) is fixedly connected to the top of the base plate (1). The weights (202) are placed inside the storage box (201). The first magnetic blocks (203) are fixedly connected to the storage box (201) on the side near the storage box (201).

6. A metrological calibration device for mechanical instruments according to claim 5, characterized in that: The storage box (201) is provided with a lid (12) on the top. The surface of the lid (12) is in contact with the inner wall of the storage box (201). A pull ring (10) is fixedly connected to the top of the lid (12).

7. A metrological calibration device for mechanical instruments according to claim 6, characterized in that: The front and rear sides of the box cover (12) are fixedly connected with a second magnetic block (11), and the bottom of the second magnetic block (11) is magnetically attracted to the top of the first magnetic block (203).

8. A metrological calibration device for mechanical instruments according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected with a rubber anti-slip pad (13), and the number of rubber anti-slip pads (13) is several and they are evenly distributed on the bottom of the base plate (1).

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