Flatness detection device for die steel

By using the rolling contact between the support rod and the threaded hole and the guide groove design of the telescopic rod, the problem of low measurement efficiency of the height gauge is solved, and the fine adjustment and stable positioning of the digital display and probe are realized, thereby improving the efficiency and stability of mold steel flatness detection.

CN224136560UActive Publication Date: 2026-04-17XIAMEN HANSHENG METAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN HANSHENG METAL TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-04-17

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Abstract

The utility model discloses a flatness detection device for die steel, which belongs to the technical field of altimeters, and comprises a base provided with a connecting groove, a support rod rotatably connected in the connecting groove, an external thread fixedly arranged on the support rod, an internal threaded hole arranged on one side of a digital display meter, the support rod penetrating through the internal threaded hole, and an external thread fixedly arranged on the digital display meter. A telescopic rod is arranged at the bottom of the digital display meter, the other end of the telescopic rod is connected to the base, when the supporting rod rotates, the digital display meter ascends and descends along the supporting rod, and the altimeter has the advantage that the detection efficiency of the altimeter is improved.
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Description

Technical Field

[0001] This utility model relates to the field of altimeter technology, specifically to a device for detecting the flatness of mold steel. Background Technology

[0002] Flatness measurement of mold steel is a crucial step in mold manufacturing and quality control. Various methods exist for measuring mold steel flatness, and selecting the appropriate method requires comprehensive consideration of factors such as accuracy requirements, material properties, and processing technology. Simultaneously, the selection of testing equipment and the control of the measurement environment are also critical. Through reasonable measurement methods and strict standards, the quality and service life of mold steel can be effectively improved. Using a flat plate with high flatness as a reference, and measuring the gap between the mold steel surface and the plate using tools such as a height gauge, is a relatively accurate method.

[0003] A typical height gauge consists of a base, a support rod, a digital display, and a probe. The base is placed on a table, and the support rod is vertically mounted on the base. The digital display is secured to the support rod with screws, and the probe is installed directly below the digital display. Before use, the height of the digital display and the probe must be adjusted according to the specific height of the mold steel. The digital display is raised or lowered and fixed by tightening or loosening the screws. After adjustment, the mold steel is placed on the base, and the probe lightly touches the upper surface of the mold steel. The digital display will then display the specific value. By repeating the measurement at different points on the mold steel several times, the flatness of the upper surface of the mold steel can be determined.

[0004] However, when raising or lowering the digital display and probe, the screws must be loosened first, and the bracket must be supported by hand to move it up and down. The movement distance of the digital display and probe is difficult to control and cannot be fine-tuned, which affects the measurement efficiency of the altimeter.

[0005] Based on this, the present invention designs a flatness detection device for mold steel to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connecting groove is provided on the base, the support rod is rotatably connected in the connecting groove, an external thread is fixedly provided on the support rod, an internal thread hole is provided on one side of the digital display, the support rod passes through the internal thread hole, a telescopic rod is provided at the bottom of the digital display, the other end of the telescopic rod is connected to the base, and when the support rod rotates, the digital display moves up and down along the support rod.

[0007] By adopting the above technical solution, when adjusting the height of the digital display and the probe, rotating the support rod causes continuous rolling contact between the external thread and the internal thread hole on the support rod. The digital display moves up and down along the support rod. The telescopic rod does not obstruct the up and down movement of the digital display, while guiding the orientation of the digital display. After reaching the desired position, stopping the rotation of the support rod causes the digital display to stop moving. By rotating the support rod a certain number of times, the up and down movement of the digital display and the probe can be finely adjusted, making the height adjustment of the device more efficient and convenient, and effectively improving the measurement efficiency of the altimeter.

[0008] Preferably, the base has a guide groove that surrounds the connecting groove. The guide groove has several positioning holes. Fixing blocks are symmetrically arranged on both sides of the telescopic rod. Positioning blocks are slidably arranged on the fixing blocks. When the positioning blocks are inserted into the positioning holes, the telescopic rod stops sliding in the guide groove.

[0009] By adopting the above technical solution, the sliding telescopic rod can adjust the orientation of the digital display and the probe, so that the probe can contact different points on the mold steel. After sliding, the positioning block can be slid down so that the positioning block is inserted into the positioning hole, so that the telescopic rod stops sliding after being limited, and the measuring direction of the probe remains stable, thus improving the stability of the measuring device.

[0010] Preferably, a limiting strip is fixedly provided above the guide groove, and a limiting groove is provided on the telescopic rod. When one end of the telescopic rod slides in the guide groove, the limiting strip is located in the limiting groove.

[0011] By adopting the above technical solution, the connection between the telescopic rod and the connecting groove is increased, so that the telescopic rod will not easily become skewed under force.

[0012] Preferably, a rotating block is fixedly provided at the top of the support rod, and a plurality of protrusions are fixedly provided around the periphery of the rotating block.

[0013] By adopting the above technical solution, the rotation of the support rod becomes easier and less strenuous, improving the comfort of using the device.

[0014] Preferably, a push rod is fixedly connected to the two positioning blocks.

[0015] By adopting the above technical solution, the two positioning blocks can be quickly inserted into and removed from the positioning holes, further improving the efficiency of the device.

[0016] In summary, this application has the following beneficial technical effects: By adopting the above technical solution, when adjusting the height of the digital display and the probe, rotating the support rod causes the external thread and the internal thread hole on the support rod to continuously roll and contact each other. The digital display moves up and down along the support rod. The telescopic rod does not hinder the raising and lowering of the digital display while guiding the orientation of the digital display. After raising and lowering to the desired position, the rotation of the support rod is stopped, and the digital display stops raising and lowering accordingly. By rotating the support rod a certain number of times, the raising and lowering of the digital display and the probe can be finely adjusted, making the height adjustment of the device more efficient and convenient, and effectively improving the measurement efficiency of the altimeter. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 for Figure 1 A magnified structural diagram of A in the middle;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of this embodiment;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the telescopic rod and the base in this embodiment;

[0022] Figure 5 for Figure 4 A magnified structural diagram of B in the diagram.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base; 2. Probe; 3. Digital display; 4. Rotating block; 5. Protrusion; 6. Support rod; 7. External thread; 8. Guide groove; 9. Connecting groove; 10. Telescopic rod; 11. Fixing block; 12. Positioning block; 13. Push rod; 14. Positioning hole; 15. Internal threaded hole; 16. Limiting groove; 17. Limiting strip. 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. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] A flatness testing device for mold steel includes a base 1, a support rod 6, a digital display 3, and a probe 2. The base 1 has a connecting groove 9, and the support rod 6 is rotatably connected in the connecting groove 9. An external thread 7 is fixedly provided on the support rod 6. An internal thread hole 15 is provided on one side of the digital display 3, and the support rod 6 passes through the internal thread hole 15. A telescopic rod 10 is provided at the bottom of the digital display 3, and the other end of the telescopic rod 10 is connected to the base 1. A rotating block 4 is fixedly provided at the top of the support rod 6.

[0028] In use, rotating the support rod 6 causes it to rotate within the connecting groove 9. The external thread 7 on the support rod 6 continuously rolls into contact with the internal thread hole 15, converting the rotational motion into linear motion. The digital display 3 rises and falls with the rotation of the support rod 6, and the telescopic rod 10 extends and retracts with the rise and fall of the digital display 3. When the probe 2 reaches the appropriate position, the rotation of the support rod 6 is stopped, and the digital display 3 stops rising and falling. At this point, preparations for testing the mold steel can be made. The operation is simple and quick, simplifying the rising and falling steps of the probe 2 and enabling fine-tuning of the rise and fall of the digital display 3 and the probe 2, thus improving the measurement efficiency of the measuring device.

[0029] The base 1 has a guide groove 8, which surrounds the connecting groove 9. The guide groove 8 has several positioning holes 14. The telescopic rod 10 has fixed blocks 11 symmetrically arranged on both sides. The fixed blocks 11 have positioning blocks 12 slidably arranged on the fixed blocks 11. The guide groove 8 has a limit strip 17 fixedly arranged above it. The telescopic rod 10 has a limit groove 16.

[0030] When adjusting the detection direction, the digital display 3 can be rotated directly, causing the telescopic rod 10 below the digital display 3 to slide in the guide groove 8. When the digital display 3 is rotated to the desired position, the two positioning blocks 12 are pressed down, causing the positioning blocks 12 to slide down along the fixing block 11 into the positioning hole 14. The sliding of the telescopic rod 10 is fixed, and the digital display 3 stops rotating, so that the relative position between the probe 2 and the base 1 is temporarily fixed, the measurement direction of the probe 2 remains stable, and the stability of the measuring device during measurement is improved.

[0031] Several protrusions 5 are fixedly arranged around the rotating block 4. By placing a finger between the protrusions 5 on the rotating block 4 and rotating the rotating block 4, the rotating block 4 drives the support rod 6 to start rotating in the connecting groove 9. This increases the force points of the support rod 6, making the rotation of the support rod 6 more effortless and improving the comfort of using the measuring device. Push rods 13 are fixedly connected to the two positioning blocks 12, allowing the two positioning blocks 12 to simultaneously insert into and disengage from the positioning holes 14. This facilitates the sliding of the positioning blocks 12 on the fixed block 11, enabling the sliding and fixing of the telescopic rod 10 to be achieved quickly, further improving the efficiency of the device.

[0032] The implementation principle of this embodiment is as follows: When in use, the finger is placed between several protrusions 5 on the rotating block 4, and the rotating block 4 is rotated, so that the rotating block 4 drives the support rod 6 to start rotating in the connecting groove 9. The external thread 7 on the support rod 6 starts to continuously roll contact with the internal thread hole, so that the rotational motion is converted into linear motion. The digital display 3 starts to rise and fall with the rotation of the support rod 6, and the telescopic rod 10 starts to extend and retract with the rise and fall of the digital display 3. When the probe 2 rises and falls to the appropriate position, the rotation of the support rod 6 is stopped, and the digital display 3 stops rising and falling. At this time, the test preparation of the mold steel can be carried out.

[0033] When adjusting the detection direction, the digital display 3 can be rotated directly, causing the telescopic rod 10 below the digital display 3 to slide in the guide groove 8. When the digital display 3 is rotated to the desired position, the push rod 13 is pressed down, causing the positioning block 12 to slide down along the fixing block 11 into the positioning hole 14. The sliding of the telescopic rod 10 is fixed, and the digital display 3 stops rotating, so that the relative position between the probe 2 and the base 1 is temporarily fixed, the measurement direction of the probe 2 remains stable, and the stability of the measuring device during measurement is improved.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A flatness detection device for die steel, comprising a base (1), a supporting rod (6), a digital display (3) and a probe (2), characterized in that: The base (1) has a connecting groove (9), the support rod (6) is rotatably connected in the connecting groove (9), the support rod (6) is fixedly provided with an external thread (7), the digital display (3) has an internal thread hole (15) on one side, the support rod (6) passes through the internal thread hole (15), the digital display (3) has a telescopic rod (10) at the bottom, the other end of the telescopic rod (10) is connected to the base (1), when the support rod (6) rotates, the digital display (3) rises and falls along the support rod (6).

2. The flatness detection device for a die steel according to claim 1, characterized by: The base (1) is provided with a guide groove (8), which surrounds the connecting groove (9). The guide groove (8) is provided with a plurality of positioning holes (14). Fixing blocks (11) are symmetrically arranged on both sides of the telescopic rod (10). Positioning blocks (12) are slidably arranged on the fixing blocks (11). When the positioning blocks (12) are inserted into the positioning holes (14), the telescopic rod (10) stops sliding in the guide groove (8).

3. The flatness detection device for a die steel according to claim 2, characterized by: A limiting strip (17) is fixedly provided above the guide groove (8), and a limiting groove (16) is opened on the telescopic rod (10). When one end of the telescopic rod (10) slides in the guide groove (8), the limiting strip (17) is located in the limiting groove (16).

4. The flatness detection device for a die steel according to claim 1, characterized by: A rotating block (4) is fixedly provided on the top of the support rod (6), and several protrusions (5) are fixedly provided around the rotating block (4).

5. The flatness detection device for a die steel according to claim 2, characterized by: Push rods (13) are fixedly connected to the two positioning blocks (12).