Microchannel aluminum flat tube measuring tool

Abstract

The utility model relates to aluminium industry product measuring equipment technical field, concretely is a kind of microchannel aluminium flat tube measuring tool, including height frame and digital display ruler main part, the bottom of height frame is slidably connected with bottom plate, the top of bottom plate is slidably connected with a set of clamping plate, the lateral wall of a set of clamping plate is connected with rotating rod and passes through, the surface of rotating rod is provided with two-way thread groove, and two-way thread groove has the effect of synchronous reverse movement between a set of clamping plate when rotating rod rotates, makes clamping plate to the front and rear sides of product stable clamping, so that clamping plate can be positioned on the bottom center surface of digital display ruler, the utility model is driven clamping plate and the composite structure of threaded rod driving clamping block by two-way thread groove, constructs space three-dimensional positioning system, and the front and rear left and right sides of product are clamped, and the bottom center point of measured product coincides with measurement center line by mechanical constraint, eliminates the problem that the measuring point is not consistent due to the deviation caused by artificial placement, improves the accuracy of data measurement.

Description

Technical Field

[0001] This utility model relates to the technical field of measuring equipment for aluminum products, specifically a microchannel aluminum flat tube measuring tool. Background Technology

[0002] Microchannel aluminum flat tubes, also known as parallel flow aluminum flat tubes, are thin-walled, porous flat tubes formed by hot extrusion of refined aluminum rods. The surface is treated with zinc spraying for corrosion protection. Due to their characteristics of large heat exchange area, low refrigerant consumption, and lightweight, they are key components of heat exchangers in automotive air conditioning, household air conditioning, and refrigerators. During the production process of microchannel aluminum flat tubes, it is necessary to measure the height of the microchannel aluminum flat tubes to avoid large errors between the microchannel aluminum flat tubes, which could affect the performance of the microchannel aluminum flat tubes when assembled into the heat exchanger.

[0003] Digital height gauges are commonly used to measure the height of microchannel aluminum flat tubes. These gauges are electronic digital height gauges that display measurement data in real time on a digital screen. They are mainly used to measure the height of workpieces and can also be used to inspect the shape and positional tolerances of workpieces. Some models support scribing functions. Their working principle mainly uses laser or ultrasonic sensors to measure distances, and the results are directly displayed through a digital tube, resulting in more accurate readings and more efficient operation.

[0004] Existing digital height gauges require manual placement of microchannel aluminum flat tubes. However, it is difficult to ensure that the bottom center point of the microchannel aluminum flat tube coincides with the measurement baseline during manual placement, resulting in fluctuations in the height value. In batch testing of microchannel aluminum flat tubes, data dispersion affects the validity of statistical data. When placing the tubes manually, workers need to fix the microchannel aluminum flat tubes and operate the digital height gauge simultaneously, making it difficult to guarantee the accuracy of the data.

[0005] Therefore, this utility model provides a microchannel aluminum flat tube measuring tool that can locate the measurement center of the microchannel aluminum flat tube product and achieve stable clamping of the microchannel aluminum flat tube. Utility Model Content

[0006] To address the problems in existing technologies where the measurement center is uncertain and unstable, causing multiple data points to easily lose their validity when measuring microchannel aluminum flat tube products, a microchannel aluminum flat tube measuring tool has been designed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: a microchannel aluminum flat tube measuring tool, including a height frame and a digital display ruler body. A base plate is slidably connected to the bottom of the height frame, and a set of clamping plates is slidably connected to the top of the base plate. A rotating rod is penetratingly connected to the side wall of the set of clamping plates. The surface of the rotating rod is provided with a bidirectional threaded groove. When the rotating rod rotates, the bidirectional threaded groove causes the set of clamping plates to move synchronously in opposite directions, so that the clamping plates stably clamp the front and rear sides of the product. This allows the clamping plates to position the product on the bottom center surface of the digital display ruler. A threaded rod is rotatably connected inside the clamping plate, and a clamping block is slidably fitted on the outer surface of the threaded rod. The clamping block cooperates with the clamping plate to clamp the bottom of the product, so that the clamping block stably clamps the left and right sides of the product. This limits the bottom center of multiple products to the same positioning point, which facilitates the improvement of the accuracy of the digital display ruler in measuring multiple products.

[0008] Furthermore, the bidirectional threaded groove includes a left helical groove and a right helical groove. A rotating shaft is sleeved on the outer surface of the rotating rod. The rotating shaft is located between the left helical groove and the right helical groove and is slidably placed at the bottom of the height frame. The rotating shaft causes the rotating rod to rotate while sliding inside the height frame, thus preventing deviation when the rotating rod rotates and drives the clamping plate to move smoothly.

[0009] Furthermore, a limit rod is installed through the side wall of a set of clamps. A sliding rod is slidably connected to the side wall of the limit rod. A retaining ring is fixed to the side wall of the sliding rod. Rubber is fixed inside the retaining ring. The rubber is in contact with the side wall of the rotating rod to increase the friction force when the rotating rod rotates. This prevents the rotating rod from causing the product to loosen and resulting in uneven placement, which would affect the accuracy of the measurement data.

[0010] Furthermore, a spring assembly is fixed to the side wall of the retaining ring. One end of the spring assembly is fixed to the side wall of the limiting rod. The spring assembly pushes the retaining ring to increase the contact force between the retaining ring and the rotating rod, thereby increasing the frictional force and improving the ability of the rotating rod to resist the force brought by uncontrollable external forces during measurement, thus preventing the rotating rod from rotating.

[0011] Furthermore, the height frame has a placement slot inside, and the rotating rod and the limiting rod both pass through the inside of the placement slot. The rotating shaft is located inside the placement slot. The placement slot allows the rotating rod to slide out parallel to the height frame along with the base plate, preventing positional displacement between the rotating rod, the limiting rod, the clamping plate, and the base plate.

[0012] Furthermore, the side wall of the clamping plate is provided with a sliding groove, and the threaded rod passes through the side wall of the sliding groove and through the side wall of the clamping plate. The clamping block slides inside the sliding groove, and the sliding groove allows the clamping block to move smoothly inside the clamping plate, preventing the clamping block from rotating with the threaded rod.

[0013] Furthermore, a handle is fixed to the side wall of the rotating rod, which drives the rotating rod to rotate. A handle is fixed to the side wall of the threaded rod, which drives the threaded rod to rotate. The handle provides power to the rotating rod manually, and the handle provides power to the threaded rod manually.

[0014] Furthermore, the bottom of the height frame has multiple sets of fixing holes, and the top of the base plate is fixed with spring clips. The bottom of the spring clips passes through the fixing holes to fix the height frame and the base plate, making it easy to move the base plate to adjust the size of the work surface.

[0015] The beneficial effects of this utility model are:

[0016] (1) The microchannel aluminum flat tube measuring tool of this utility model constructs a three-dimensional spatial positioning system through a composite structure of bidirectional threaded groove driving clamping plate and threaded rod driving clamping block. The bidirectional threaded groove of the rotating rod drives a set of clamping plates to move synchronously in opposite directions, clamping the front and rear sides of the product, so that the center surface of the product coincides with the center surface of the digital display ruler. The clamping block applies pressure to the left and right sides of the bottom of the product to ensure that the center line of the product is aligned with the center line of the measurement. Through mechanical constraint, the bottom center point of the measured product coincides with the center line of the measurement, eliminating the problem of inconsistent measurement points caused by manual placement deviation and improving the accuracy of data measurement.

[0017] (2) The microchannel aluminum flat tube measuring tool described in this utility model increases the friction coefficient to resist external interference by using spring group, retaining ring and rubber. The spring group continuously applies radial thrust, so that the contact pressure between rubber and rotating rod is controllable. The high friction state prevents the rotating rod from rotating accidentally and avoids the attenuation of clamping force. Pressing the retaining ring makes it retract into the limiting rod, releases the friction lock, and realizes quick disassembly. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the microchannel aluminum flat tube measuring tool of this utility model. Figure 1 ;

[0020] Figure 2 This is a three-dimensional structural diagram of the microchannel aluminum flat tube measuring tool of this utility model. Figure 2 ;

[0021] Figure 3 This is a three-dimensional structural diagram of the base plate of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the combination of the rotating rod and the limiting rod of this utility model;

[0023] Figure 5This is a three-dimensional structural diagram of the limiting rod of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the threaded rod of this utility model.

[0025] In the diagram: 1. Height frame; 2. Digital ruler body; 3. Base plate; 4. Clamping plate; 5. Rotating rod; 6. Handle; 7. Two-way threaded groove; 8. Left helical groove; 9. Right helical groove; 10. Rotating shaft; 11. Slide groove; 12. Placement groove; 13. Threaded rod; 14. Clamping block; 15. Handle; 16. Limiting rod; 17. Sliding rod; 18. Snap ring; 19. Rubber; 20. Spring assembly; 21. Fixing hole; 22. Spring clip. Detailed Implementation

[0026] To make the technical means, technical features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Example: Figures 1-6 As shown, the microchannel aluminum flat tube measuring tool of this utility model includes a height frame 1 and a digital display ruler body 2. A base plate 3 is slidably connected to the bottom of the height frame 1, and a set of clamping plates 4 is slidably connected to the top of the base plate 3. A rotating rod 5 is penetratingly connected to the side wall of the set of clamping plates 4. A bidirectional threaded groove 7 is formed on the surface of the rotating rod 5. When the rotating rod 5 rotates, the bidirectional threaded groove 7 causes the set of clamping plates 4 to move synchronously in opposite directions, allowing the clamping plates 4 to stably clamp the front and rear sides of the product. This allows the clamping plates 4 to position the product on the bottom center surface of the digital display ruler. A threaded rod 13 is rotatably connected inside the clamping plates 4, and a clamping block 14 is slidably fitted onto the outer surface of the threaded rod 13. The clamping block 14 cooperates with the clamping plates 4 to clamp the bottom of the product, thus stably clamping the left and right sides of the product. The bottom centers of multiple products are clamped at the same positioning point, which facilitates the improvement of the accuracy of the digital display ruler in measuring multiple products. The bidirectional threaded groove 7 includes a left helical groove 8 and a right helical groove 9. A rotating shaft 10 is sleeved on the outer surface of the rotating rod 5. The rotating shaft 10 is located between the left helical groove 8 and the right helical groove 9 and is slidably placed at the bottom of the height frame 1. The rotating shaft 10 makes the rotating rod 5 rotate while sliding inside the height frame 1, so as to avoid the deviation when the rotating rod 5 drives the clamping plate 4 to move smoothly. A handle is fixed on the side wall of the rotating rod 5. The handle drives the rotating rod 5 to rotate. A handle 15 is fixed on the side wall of the threaded rod 13. The handle 15 drives the threaded rod 13 to rotate. The handle provides power to the rotating rod 5 manually, and the handle 15 provides power to the threaded rod 13 manually.

[0028] In this embodiment, the product is a microchannel aluminum flat tube. When measuring the height of the microchannel aluminum flat tube, the operator places the height frame 1 on a horizontal table, slides the base plate 3 out from the inside of the height frame 1 and fixes it, then moves the digital scale to the bottom so that the measuring surface of the digital scale is in contact with the base plate 3. After zeroing the digital scale, the operator moves the digital scale to the top. The operator places the microchannel aluminum flat tube vertically on the base plate 3 with one hand and rotates the handle 6 with the other hand to rotate the rotating rod 5. The rotation of the rotating rod 5 drives the bidirectional threaded groove 7 to rotate. Under the action of the threads of the left spiral groove 8 and the right spiral groove 9, a set of clamping plates 4 located inside the bidirectional threaded groove 7 moves towards each other, so that the clamping plates 4 stably clamp the front and back of the microchannel aluminum flat tube and hold the microchannel aluminum flat tube product. The center surface is flush with the positioning surface, so that the microchannel aluminum flat tube is located on the measuring center surface of the digital display ruler. When the operator turns the handle 15, it drives the threaded rod 13 to rotate, causing the clamping block 14 to move inside the slide groove 11, thereby clamping the left and right sides of the microchannel aluminum flat tube and moving the microchannel aluminum flat tube product so that the center line of the microchannel aluminum flat tube coincides with the measuring center line of the positioning digital display ruler. This achieves positioning and clamping of the microchannel aluminum flat tube, which is convenient for testing multiple microchannel aluminum flat tube products without shifting the measurement position. After moving the digital display ruler downwards so that the measuring surface of the digital display ruler is flush with the top of the microchannel aluminum flat tube product, the digital display ruler measures the height of the microchannel aluminum flat tube product, thereby improving the accuracy of the measurement data of multiple microchannel aluminum flat tube products.

[0029] Specifically, a limit rod 16 is installed through the side wall of a set of clamping plates 4. A sliding rod 17 is slidably connected to the side wall of the limit rod 16. A retaining ring 18 is fixed to the side wall of the sliding rod 17. Rubber 19 is fixed inside the retaining ring 18. The rubber 19 is in contact with the side wall of the rotating rod 5 to increase the friction force when the rotating rod 5 rotates. This prevents the rotating rod 5 from rotating and causing the product to fall off, resulting in uneven placement and affecting the accuracy of the measurement data. A spring assembly 20 is fixed to the side wall of the retaining ring 18. One end of the spring assembly 20 is fixed to the side wall of the limit rod 16. The spring assembly 20 pushes the retaining ring 18 to increase the contact force between the retaining ring 18 and the rotating rod 5, thereby increasing the friction force and improving the ability of the rotating rod 5 to resist the force brought by uncontrollable external forces during measurement, thus preventing the rotating rod 5 from rotating.

[0030] In this embodiment, the clamping plate 4 moves smoothly along the outer surface of the limiting rod 16 under the torque provided by the rotating rod 5. Under the action of the spring assembly 20, the retaining ring 18 is pushed outward by the side wall of the limiting rod 16, causing the rubber 19 inside the retaining ring 18 to come into contact with the rotating rod 5. The thrust provided by the rubber 19 and the spring assembly 20 increases the friction of the rotating rod 5, thereby increasing the rotational force required for the rotating rod 5 to rotate. This prevents the rotating rod 5 from being disturbed and rotating when the digital display scale is used to measure the microchannel aluminum flat tube product, which would affect the clamping stability of the clamping plate 4 for the microchannel aluminum flat tube product. When it is necessary to rotate the rotating rod 5 to open the clamping plate 4 to replace the microchannel aluminum flat tube product for measurement, the retaining ring 18 is pressed, causing the sliding rod to drive the retaining ring 18 to retract into the interior of the limiting rod 16. After the sliding rod is rotated to fix the retaining ring 18, the retaining ring 18 and the rubber 19 surface are away from the side wall of the rotating rod 5, making it convenient for the operator to rotate.

[0031] Specifically, the height frame 1 has a placement groove 12 inside, and the rotating rod 5 and the limiting rod 16 both pass through the interior of the placement groove 12. The rotating shaft 10 is located inside the placement groove 12. The placement groove 12 facilitates the rotating rod 5 to slide parallel to the height frame 1 along the base plate 3, preventing positional displacement between the rotating rod 5, the limiting rod 16, the clamping plate 4, and the base plate 3. The side wall of the clamping plate 4 has a sliding groove 11, and the threaded rod 13 passes through the side wall of the sliding groove 11 and the side wall of the clamping plate 4. The clamping block 14 slides inside the sliding groove 11. The sliding groove 11 allows the clamping block 14 to move smoothly inside the clamping plate 4, preventing the clamping block 14 from rotating with the threaded rod 13. The bottom of the height frame 1 has multiple sets of fixing holes 21. The top of the base plate 3 is fixed with a spring clip 22. The bottom of the spring clip 22 passes through the interior of the fixing holes 21 to fix the height frame 1 and the base plate 3, facilitating the movement of the base plate 3 to adjust the size of the operating table.

[0032] In this embodiment, the interior of the placement slot 12 facilitates the sliding of the rotating rod 5 along the height frame 1 parallel to the base plate 3, preventing positional displacement between the rotating rod 5, the limiting rod 16, the clamping plate 4, and the base plate 3. The spring clip 22 of the base plate 3 is inserted into the interior of the fixing hole 21 to fix the height frame 1 and the base plate 3. The size of the extended area of ​​the base plate 3 can be adjusted according to the required size of the operating surface of the base plate 3 and the operating environment, avoiding insufficient operating space that could affect the measurement accuracy of the microchannel aluminum flat tube product.

[0033] Working principle: The operator places the height frame 1 on a horizontal table, slides the base plate 3 out from inside the height frame 1 and fixes it with spring clips 22. First, move the digital scale to the bottom so that the measuring surface of the digital scale is in contact with the base plate 3. After zeroing the digital scale, move it to the top. The operator places the microchannel aluminum flat tube product vertically on the base plate 3 and rotates the handle 6 to drive the rotating rod 5 to rotate, causing the clamping plates 4 to move towards each other, stably clamping the front and back of the microchannel aluminum flat tube product. The operator then rotates the handle 15, which in turn drives the threaded rod 13 to rotate, causing the clamping plates 4 to move towards each other, stably clamping the front and back of the microchannel aluminum flat tube product. Block 14 clamps the left and right sides of the microchannel aluminum flat tube, aligning the center line of the microchannel aluminum flat tube with the measuring center line of the positioning digital scale, thus achieving positioning and clamping of the microchannel aluminum flat tube. Rotating the slide rod causes the retaining ring 18 to come into contact with the rotating rod 5 under the action of the spring group 20, further strengthening and fixing the clamping plate 4. Moving the digital scale downwards, so that the measuring surface of the digital scale is flush with the top of the microchannel aluminum flat tube product, the digital scale measures the height of the microchannel aluminum flat tube product. Multiple microchannel aluminum flat tube products can be measured at the same positioning point, improving the accuracy and usability of the measurement data.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A microchannel aluminum flat tube measuring tool, comprising a height frame and a digital display ruler body, characterized in that: The bottom of the height frame is slidably connected to a base plate, and the top of the base plate is slidably connected to a set of clamping plates. A rotating rod is connected through the side wall of the set of clamping plates. The surface of the rotating rod is provided with a bidirectional threaded groove. When the rotating rod rotates, the bidirectional threaded groove causes the set of clamping plates to move synchronously in opposite directions, so that the clamping plates stably clamp the front and rear sides of the product. A threaded rod is rotatably connected inside the clamping plate, and a clamping block is slidably fitted on the outer surface of the threaded rod. The clamping block cooperates with the clamping plate to clamp the bottom of the product, so that the clamping block stably clamps the left and right sides of the product. This allows the bottom center of multiple products to be clamped at the same positioning point, and the height frame and digital display ruler body are used to measure the product.

2. The microchannel aluminum flat tube measuring tool according to claim 1, characterized in that: The bidirectional threaded groove includes a left helical groove and a right helical groove. A rotating shaft is sleeved on the outer surface of the rotating rod. The rotating shaft is located between the left helical groove and the right helical groove and is slidably placed at the bottom of the height frame. The rotating shaft causes the rotating rod to rotate while sliding inside the height frame.

3. The microchannel aluminum flat tube measuring instrument according to claim 1, characterized in that: A limit rod is installed through the side wall of a set of clamps. A sliding rod is slidably connected to the side wall of the limit rod. A retaining ring is fixed to the side wall of the sliding rod. Rubber is fixed inside the retaining ring. The rubber is in contact with the side wall of the rotating rod to increase the friction force when the rotating rod rotates.

4. The microchannel aluminum flat tube measuring instrument according to claim 3, characterized in that: A spring assembly is fixed to the side wall of the retaining ring. One end of the spring assembly is fixed to the side wall of the limiting rod. The spring assembly pushes the retaining ring to increase the contact force between the retaining ring and the rotating rod, thereby increasing the friction force.

5. The microchannel aluminum flat tube measuring tool according to claim 1, characterized in that: The height frame has a placement slot inside, and the rotating rod and the limiting rod both pass through the inside of the placement slot. The rotating shaft is located inside the placement slot, and the placement slot allows the rotating rod to slide out parallel to the height frame along with the base plate.

6. The microchannel aluminum flat tube measuring tool according to claim 1, characterized in that: The side wall of the clamping plate is provided with a sliding groove, and the threaded rod passes through the side wall of the sliding groove and through the side wall of the clamping plate. The clamping block slides inside the sliding groove, and the sliding groove allows the clamping block to move smoothly inside the clamping plate.

7. The microchannel aluminum flat tube measuring tool according to claim 1, characterized in that: A handle is fixed to the side wall of the rotating rod, and the handle drives the rotating rod to rotate. A handle is fixed to the side wall of the threaded rod, and the handle drives the threaded rod to rotate.

8. The microchannel aluminum flat tube measuring instrument according to claim 1, characterized in that: The bottom of the height frame has multiple sets of fixing holes, and a spring clip is fixed to the top of the base plate. The bottom of the spring clip passes through the fixing holes to fix the height frame and the base plate.

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