Measuring tool for shaping large cross beam

Abstract

The utility model discloses a measuring tool for shaping a large cross beam, and belongs to the technical field of inspection measuring tools. A measuring tool for shaping a large cross beam comprises a measuring bottom plate and further comprises V-shaped blocks fixedly installed at the two ends of the bottom plate and used for stably supporting the large cross beam; the measuring part is fixedly arranged on the measuring bottom plate and is used for measuring the specific position of the large cross beam; the first position block is fixedly installed on the measuring bottom plate and used for providing position reference for the large cross beam, the positions of the conical head and the middle cross beam are measured through the measuring tool, the measured numerical value is compared with the theoretical size, and therefore the deformation direction and the deformation amount of the cross beam are obtained, shaping adjustment is conducted through the deformation direction and the deformation amount, and shaping precision is improved. And the qualified rate of forgings is ensured.

Description

Technical Field

[0001] This utility model relates to the field of inspection measuring tools, and in particular to a measuring fixture for shaping large crossbeams. Background Technology

[0002] Large beams are key components in many heavy machinery, building structures, and industrial equipment. They are typically over 2 meters long. These beams require multiple processes such as forging, heat treatment, and machining during manufacturing to ensure they have sufficient strength, rigidity, and dimensional accuracy. However, in actual production, large beam forgings often exhibit deformation such as bending and twisting after forging and heat treatment. This deformation can lead to problems such as incomplete machining or excessive machining during the machining process, resulting in material waste, increased processing costs, and even the need to scrap products because they cannot meet design requirements, leading to significant economic losses.

[0003] To address these issues, some manufacturers have adopted 3D scanning technology to inspect the shape and dimensions of forgings after shaping. While 3D scanning can provide high-precision three-dimensional data, this method has significant limitations. First, 3D scanning equipment is expensive, complex to operate, and requires a long time for each scan. Second, the process from scanning to data analysis to drawing conclusions is time-consuming, making it difficult to meet the requirements of rapid production and timely feedback. Utility Model Content

[0004] The purpose of this invention is to address the limitations of existing technologies, which, while providing high-precision three-dimensional data, have several drawbacks. First, 3D scanning equipment is expensive, complex to operate, and requires a long time for each scan. Second, the process from scanning to data analysis to drawing conclusions is time-consuming, making it difficult to meet the requirements of rapid production and timely feedback. Therefore, this invention proposes a measuring fixture for shaping large beams.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A measuring fixture for shaping large crossbeams includes a measuring base plate, and further includes: V-blocks, fixedly installed at both ends of the measuring base plate for stable support of the large crossbeam; a measuring unit, fixedly installed on the measuring base plate for measuring specific positions of the large crossbeam; and a first position block, fixedly installed on the measuring base plate for providing positional references for the large crossbeam.

[0007] To ensure stability and accuracy during the measurement process, preferably, the measuring unit includes a support base and a depth gauge, a positioning block is slidably mounted on the support base, and the depth gauge is mounted on the positioning block and slides up and down on the support base via the positioning block.

[0008] To ensure the linear movement of the probe and greatly improve the accuracy and consistency of the measurement, the positioning block has a through hole, and the measuring end of the depth gauge is located on the same axis as the through hole.

[0009] To further prevent displacement during measurement, locking bolts are installed on the positioning block.

[0010] To measure the tapered head of the crossbeam, preferably, a tapered head measuring block is also included, which is fixedly installed on the base plate for measuring the position of the tapered head of the large crossbeam.

[0011] To enable operators to easily compare the difference between the measured value and the theoretical value, a second position block is further fixedly installed on the measuring base plate, which provides a position reference for the conical head of the large crossbeam.

[0012] For ease of disassembly and maintenance, preferably, the V-block, measuring part, first position block, conical head measuring block, and second position block are all mounted on the measuring base plate by bolts.

[0013] Compared with the prior art, this utility model provides a measuring fixture for shaping large crossbeams, which has the following beneficial effects:

[0014] 1. This measuring fixture for shaping large crossbeams measures the position of the conical head and the middle crossbeam. The measured values ​​are compared with the theoretical dimensions to determine the deformation direction and amount of the crossbeam. The deformation direction and amount are used for shaping and adjustment to ensure the pass rate of the forgings.

[0015] 2. This measuring fixture for shaping large crossbeams has shared measurement data. The data obtained using the measuring fixture can be used not only during shaping but also during subsequent machining. The machine tool coordinate system can be adjusted based on the measurement data, saving time in workpiece alignment and coordinate system setup. Attached Figure Description

[0016] Figure 1 This invention provides a schematic diagram of the overall structure of a measuring fixture for shaping large crossbeams. Figure 1 ;

[0017] Figure 2 This invention provides a schematic diagram of the overall structure of a measuring fixture for shaping large crossbeams. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the measuring section of a measuring fixture for shaping large crossbeams, as proposed in this utility model.

[0019] In the diagram: 1. Measuring base plate; 2. V-block; 3. Measuring part; 301. Support base; 302. Depth gauge; 303. Positioning block; 304. Through hole; 305. Locking bolt; 4. First position block; 5. Conical head measuring block; 6. Second position block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0022] Example:

[0023] Reference Figures 1-3 A measuring fixture for shaping large crossbeams includes a measuring base plate 1, which serves as the foundation platform for the entire measuring fixture. The base plate 1 is made of high-strength, stable materials, such as cast iron or high-strength aluminum alloy. The surface of the base plate is precision-machined to ensure its flatness and stability, providing a reliable measurement reference surface. The measuring base plate 1 has multiple mounting holes and positioning pins to facilitate the fixing of other components and ensure the relative positional accuracy between the components. It also includes: V-blocks 2, fixedly installed at both ends of the measuring base plate 1 for stable support of the large crossbeam; the inner surface of the V-blocks 2 is precision-machined to ensure the positioning accuracy of the crossbeam during placement; a measuring section 3, fixedly installed on the measuring base plate 1 for measuring specific positions of the large crossbeam; and a first position block 4, located near the measuring section 3 and fixedly installed on the measuring base plate 1, for providing a positional reference for the large crossbeam. This provides the operator with an intuitive visual reference, helping to quickly determine whether the crossbeam is in the correct measurement position.

[0024] Place the beam to be measured stably on the V-block 2, ensuring it completely fits the inner surface of the V-block 2 and avoiding any unnecessary displacement to achieve the optimal measurement state. Use the measuring part 3 to measure the specified position of the beam, such as the middle part or the conical head. By adjusting the length of the measuring part 3, ensure that the probe can accurately reach the measurement point and record the actual measurement values ​​at these positions. Compare the measured data with the theoretical dimensions provided by the first position block 4. Based on the comparison results, determine the deformation direction and amount of the beam. Make necessary adjustments to the beam according to the deformation until it meets the specified dimensional requirements. For larger deformations, it may be necessary to repeat the above measurement and adjustment process multiple times. After completing all adjustments, perform a comprehensive measurement again to confirm that the beam has reached the expected size and shape standards.

[0025] The measuring unit 3 includes a support base 301 and a depth gauge 302. The support base 301 is fixedly installed on the measuring base plate 1. It provides the mounting base for the depth gauge 302 and its accessories, and ensures stability and accuracy during the measurement process. A positioning block 303 is slidably installed on the support base 301. The depth gauge 302 is installed on the positioning block 303 and slides up and down on the support base 301 through the positioning block 303 to reach the required measurement position, and is kept stable by a locking mechanism.

[0026] Preferably, the depth gauge 302 has a telescopic function, allowing the probe to be extended or shortened as needed to adapt to measurement points at different heights and positions, and can be equipped with an electronic reading function for quick and accurate data recording.

[0027] To ensure that the depth gauge 302 remains stable during measurement, the positioning block 303 has a through hole 304, and the measuring end of the depth gauge 302 and the through hole 304 are located on the same axis.

[0028] The through hole 304 ensures that the measuring end of the depth gauge 302 is on the same axis as the hole. This not only guarantees the linear movement of the probe, but also greatly improves the accuracy and consistency of the measurement. In addition, this design simplifies the installation and disassembly process of the depth gauge 302, and facilitates maintenance and calibration.

[0029] In this embodiment, the locking mechanism located on the positioning block 303 preferably has a locking bolt 305 installed on the positioning block 303 to fix the positioning block 303 at a specific position on the support base 301. When the positioning block 303 slides to the desired position, the operator can apply pressure by rotating the locking bolt 305 to firmly fix the positioning block 303 on the support base 301 and prevent it from shifting during the measurement process.

[0030] The measuring fixture for shaping large crossbeams also includes a tapered head measuring block 5, which is fixedly installed on the measuring base plate 1 and used to measure the position of the tapered head of the large crossbeam. Its design conforms to the geometric characteristics of the tapered head of the crossbeam to ensure the accuracy of the measurement contact point. The tapered head measuring block 5 is made of wear-resistant material to ensure dimensional stability and reliability during long-term use.

[0031] A second position block 6 is fixedly installed on the measuring base plate 1, which works in conjunction with the conical head measuring block 5. The second position block 6 provides a position reference for the conical head of the large crossbeam, allowing the operator to easily compare the difference between the measured value and the theoretical value.

[0032] V-block 2, measuring part 3, first position block 4, conical head measuring block 5, and second position block 6 are all mounted on measuring base plate 1 by bolts.

[0033] The measuring unit 3 is mounted on the measuring base plate 1 by bolts, which means that the support base 301 is mounted on the measuring base plate 1 by bolts.

[0034] All key components, such as V-block 2, measuring section 3, first position block 4, conical head measuring block 5, and second position block 6, are bolted to the measuring base plate 1, ensuring installation flexibility and ease of adjustment. This not only facilitates the assembly and disassembly of the equipment but also allows the position of each component to be finely adjusted according to actual needs, improving the accuracy and applicability of the measurement.

[0035] Place the beam to be measured smoothly on the V-block 2, ensuring it completely conforms to the inner surface of the V-block 2 to avoid any unnecessary displacement and achieve optimal measurement. Slide the positioning block 303 along the support base 301 to the desired position, allowing the depth gauge 302 probe to accurately reach the measurement point. Since the measuring end of the depth gauge 302 is on the same axis as the through hole 304, linear movement of the probe is ensured, thereby improving the accuracy and consistency of the measurement. Use the depth gauge 302 with telescopic function to measure the specified position of the beam, such as the middle part or the conical head. Record the actual measurement values ​​of these positions. After determining the measurement position, rotate the locking bolt 305 to fix the positioning block 303 on the support base 301, ensuring that the depth gauge 302 remains stable during the measurement process. For the measurement of the conical head, use the conical head measuring block 5 for precise measurement and compare it with the theoretical dimensions provided by the second position block 6. Compare the measured data with the theoretical dimensions provided by the first position block 4 and the second position block 6. Based on the comparison results, determine the direction and amount of deformation of the crossbeam. Adjust the crossbeam as necessary according to the deformation until the specified dimensional requirements are met. For larger deformations, the above measurement and adjustment process may need to be repeated multiple times. After all adjustments are completed, perform a comprehensive measurement again to confirm that the crossbeam has reached the expected size and shape standards.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A measuring fixture for shaping large crossbeams, comprising a measuring base plate (1), characterized in that, Also includes: V-shaped blocks (2) are fixedly installed at both ends of the measuring base plate (1) to stably support the large crossbeam; The measuring unit (3) is fixedly installed on the measuring base plate (1) and is used to measure specific positions of large crossbeams; The first position block (4) is fixedly installed on the measuring base plate (1) to provide a position reference for the large crossbeam; The measuring unit (3) includes a support base (301) and a depth gauge (302). A positioning block (303) is slidably mounted on the support base (301). The depth gauge (302) is mounted on the positioning block (303) and slides up and down on the support base (301) through the positioning block (303).

2. The measuring fixture for shaping large crossbeams according to claim 1, characterized in that, The positioning block (303) has a through hole (304), and the measuring end of the depth gauge (302) is located on the same axis as the through hole (304).

3. The measuring fixture for shaping large crossbeams according to claim 2, characterized in that, The positioning block (303) is equipped with a locking bolt (305).

4. A measuring fixture for shaping large crossbeams according to claim 1, characterized in that, It also includes, The conical head measuring block (5) is fixedly installed on the measuring base plate (1) and is used to measure the position of the conical head of the large beam.

5. A measuring fixture for shaping large crossbeams according to claim 4, characterized in that, A second position block (6) is fixedly installed on the measuring base plate (1).

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