A tool for quickly detecting the amount of bending deformation of a cross beam

Abstract

The utility model discloses a kind of tool for quickly detecting the bending deformation amount of cross beam, it is related to cross beam detection tool field, comprising: support frame, along vertical setting, the side of support frame two ends is respectively provided with first support plate, the side of support frame is centrally provided with second support plate;The end of support frame is provided with multiple positioning mechanisms of different height along vertical, positioning mechanism and first support plate are detachably connected;The side of support frame two ends is respectively provided with detection reference surface;The distance of first support plate and second support plate in vertical is more than the distance of corresponding cross beam standard piece in vertical by 10mm;The tool is designed according to the process standard deformation amount of cross beam cannot be greater than 10mm regulation, both save the number of detection personnel, can also shorten detection time.

Description

Technical Field

[0001] This utility model belongs to the field of crossbeam testing fixtures, and more specifically, relates to a fixture for quickly detecting the bending deformation of crossbeams. Background Technology

[0002] The crossbeam of a railway freight car bogie is a key component ensuring the stability and safety of the vehicle. Whether its bending deformation is within the specified limits directly affects the operating performance of the freight car. However, for a long time, the industry has lacked a unified and standardized method for detecting the bending deformation of crossbeams. Traditional testing methods mainly rely on a marking platform and a steel ruler for measurement: workers must first mark a baseline on the platform, then place the crossbeam on the baseline, and measure the offset at different positions with a steel ruler to determine the degree of deformation. This method has obvious drawbacks: on the one hand, the baseline of the marking platform is easily affected by environmental factors (such as temperature and vibration), and the manual reading of the steel ruler is also subject to subjective bias, making it difficult to guarantee the accuracy of the measurement results; on the other hand, the entire process requires multiple people to adjust the position of the crossbeam and repeatedly calibrate the measurement points, which is cumbersome and time-consuming, seriously affecting production efficiency. With the improvement of railway freight car manufacturing technology and the increasing precision requirements of parts, traditional testing methods can no longer meet production needs, and an advanced measurement method is urgently needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a tooling for quickly detecting the bending deformation of crossbeams. This tooling is designed according to the standard requirement that the deformation of crossbeams should not exceed 10mm. A first support plate is set at both ends of the support frame and a second support plate is set in the middle. By placing the end of the crossbeam on the first support plate and observing the gap between the middle of the crossbeam and the second support plate, it is possible to quickly determine whether there is a bending deformation problem in the vertical direction of the crossbeam. This saves the number of inspection personnel and shortens the inspection time.

[0004] To achieve the above objectives, this utility model provides a tooling for rapidly detecting the bending deformation of a cross-beam, comprising: A support frame is arranged vertically, with a first support plate at each end of one side of the support frame and a second support plate at the center of one side of the support frame. The support frame has multiple positioning mechanisms of different heights arranged vertically at both ends, and the positioning mechanisms are detachably connected to the first support plate. The support frame has detection reference surfaces at both ends on one side; The vertical distance between the first support plate and the second support plate is 10mm greater than the vertical distance between the corresponding crossbeam standard components.

[0005] Preferably, the positioning mechanism includes two positioning holes arranged in the horizontal direction, and two positioning pins are provided at the bottom of the first support plate, the positioning pins being inserted into the positioning holes.

[0006] Preferably, the area of ​​the first support plate is not less than the area of ​​the support seats at both ends of the crossbeam.

[0007] Preferably, the length of the second support plate is set to correspond to the length of the recessed section in the middle of the crossbeam.

[0008] Preferably, when the crossbeam without bending deformation is placed on the first support plate, there is a 10mm gap between the middle of the crossbeam and the second support plate.

[0009] Preferably, a rotating rod is rotatably mounted on the first support plate, a rotating support is provided at one end of the first support plate, the middle part of the rotating rod is disposed in the circular hole of the rotating support through a circular pin, and a plug is sleeved on one end of the rotating rod.

[0010] Preferably, the thickness of the plug is 10 mm.

[0011] Preferably, a support is provided at the lower end of the support frame.

[0012] Preferably, the support frame is composed of multiple welded metal square tubes.

[0013] Preferably, each of the positioning mechanisms has a model identification plate on one side.

[0014] This invention provides a tooling for rapidly detecting the bending deformation of crossbeams. Its beneficial effects are as follows: Firstly, the improved measurement efficiency directly reduces labor costs in the inspection process. For example, inspecting 25 crossbeams per day, which previously took 4-5 hours, now only takes 20-40 minutes, saving thousands of yuan in labor costs annually. Secondly, the improved measurement accuracy effectively avoids the flow and rework of defective products due to misjudgments, reducing raw material waste and lost time. Statistics show that after applying this method, the rework rate of crossbeams decreased from 8% to below 1%, saving significant production costs annually. Thirdly, in terms of management value, the standardized measurement method makes the quality inspection data of crossbeams more reliable, providing strong support for quality control in the production process. This helps to promptly identify and adjust problems in the production process, improving the overall production process level. Simultaneously, the standardized measurement process facilitates the traceability and analysis of quality data, providing a data foundation for improving the enterprise's quality management system and enhancing the enterprise's core competitiveness in the railway equipment manufacturing field.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0017] Figure 1 A schematic diagram of a tooling for rapidly detecting the bending deformation of a crossbeam according to an embodiment of the present invention is shown.

[0018] Figure 2 It shows Figure 1 Enlarged view of point A.

[0019] Figure 3 A schematic diagram of the structure of a crossbeam according to an embodiment of the present invention is shown.

[0020] Figure 4 A schematic diagram of a crossbeam according to an embodiment of the present invention is shown, which is placed on a tooling for rapidly detecting the bending deformation of the crossbeam.

[0021] Figure 5 It shows Figure 4 Enlarged view of point B.

[0022] Figure 6 A schematic diagram showing the state of measuring the gap between the crossbeam and the support frame using a plug according to an embodiment of the present invention is provided.

[0023] Figure 7 It shows Figure 6 Enlarged view of point C.

[0024] Explanation of reference numerals in the attached figures: 1. Support frame; 2. First support plate; 3. Second support plate; 4. Positioning hole; 5. Positioning pin; 6. Crossbeam; 7. Support seat; 8. Rotating rod; 9. Rotating support; 10. Plug; 11. Support; 12. Model identification plate. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] like Figure 1 As shown and Figure 3 As shown, this utility model provides a tooling for quickly detecting the bending deformation of a cross-beam, comprising: The support frame 1 is set vertically, with a first support plate 2 at each end of one side of the support frame 1, and a second support plate 3 in the middle of one side of the support frame 1. Multiple positioning mechanisms of different heights are set at both ends of the support frame 1 along the vertical direction, and the positioning mechanisms are detachably connected to the first support plate 2; A detection reference surface is provided at both ends of one side of the support frame 1; The vertical distance between the first support plate 2 and the second support plate 3 is 10mm greater than the vertical distance between the corresponding crossbeam standard components.

[0027] Specifically, the fixture has two first support plates 2 and one second support plate 3 on one side of the support frame 1. The two types of support plates are set horizontally. The second support plate 3 is fixed to the support frame 1 by welding. In addition, positioning mechanisms are set at different heights at both ends of the support frame 1. When it is necessary to detect the deformation of different models of cross beams 6, the first support plates 2 are installed on the corresponding positioning mechanisms, thereby changing the vertical distance between the first support plates 2 and the second support plates 3. Then, the cross beam 6 is placed on the fixture, with both ends of the cross beam 6 attached to the first support plates 2, and one end of the cross beam 6 is attached to a detection reference surface of the support frame 1. The gap between the middle of the support frame 1 and the second support plate 3 is then observed. If the support frame 1 and the second support plate 3 are attached, it indicates that the cross beam 6 has exceeded the vertical bending deformation limit. In addition, the gap between the other end of the cross beam 6 and the other detection reference surface of the support frame 1 is observed to determine whether the cross beam 6 has exceeded the horizontal bending deformation limit.

[0028] like Figure 2 As shown, the positioning mechanism includes two positioning holes 4 arranged in the horizontal direction, and two positioning pins 5 are provided at the bottom of the first support plate 2. The positioning pins 5 are inserted into the positioning holes 4.

[0029] Specifically, two positioning holes 4 are provided at each height, and two positioning pins 5 are provided on the lower side of the first support plate 2. The positioning pins 5 are spaced apart, and the spacing between the positioning pins 5 and the positioning holes 4 is the same. When it is necessary to test a certain type of crossbeam 6, the positioning pins 5 of the first support plate 2 are inserted into the corresponding positioning holes 4, so that both ends of the crossbeam 6 can be placed on the first support plate 2 for deformation testing.

[0030] Preferably, the area of ​​the first support plate 2 is not less than the area of ​​the support seats 7 at both ends of the crossbeam 6.

[0031] Specifically, the support area of ​​the first support plate 2 is set to be larger than that of the end support seat 7 of the cross beam 6, so that the end support seats 7 of the cross beam 6 can be placed stably, which makes the deformation detection of the cross beam 6 more accurate.

[0032] Preferably, the length of the second support plate 3 is set to correspond to the length of the recessed section in the middle of the crossbeam 6.

[0033] Specifically, the length of the second support plate 3 is approximately the same as the length of the concave section in the middle of the crossbeam 6. In this way, after the two ends of the crossbeam 6 are placed stably on the first support plate 2, the second support plate 3 can detect a longer area in the middle region of the crossbeam 6, and can detect all the deformation in the middle of the crossbeam 6, thus preventing the crossbeam 6 with local deformation exceeding the limit from passing the detection program.

[0034] like Figure 2 As shown, when the crossbeam 6 without bending deformation is placed on the first support plate 2, there is a 10mm gap between the middle of the crossbeam 6 and the second support plate 3.

[0035] Preferably, a model identification plate 12 is provided on one side of each positioning mechanism.

[0036] Specifically, this fixture can detect the bending deformation of K2, K4, K5, and K6 type crossbeams. When a K2 crossbeam is placed on the first support plate 2, the vertical height difference between the first support plate 2 and the second support plate 3 is 208mm. If the lower middle part of the K2 crossbeam does not contact the second support plate 3, it means that the deformation of the K2 crossbeam is within the allowable range of 10mm. If the lower middle part of the K2 crossbeam contacts the second support plate 3, it means that the deformation of the K2 crossbeam has exceeded the process requirement of 10mm, and the K2 crossbeam is a defective product. Model identification plates 12 are installed at one end of the positioning holes 4 at different heights, which allows for quick confirmation of the installation position of the first support plate 2 corresponding to the crossbeam model 6, improving the detection efficiency of the crossbeam 6.

[0037] When inspecting crossbeams K2 and K6, the first support plate 2 is installed in the positioning holes 4 at the same height. When inspecting crossbeam K4, the first support plate 2 is installed in other positioning holes 4 via positioning pins 5, resulting in a vertical distance of 106mm between the first support plate 2 and the second support plate 3. After the undeformed crossbeam 6 is placed on the first support plate 2, there is a 10mm gap between the middle of the crossbeam 6 and the second support plate 3. When inspecting crossbeam K5, the first support plate 2 is installed in a different positioning hole 4 via positioning pins 5, resulting in a vertical distance of 186mm between the first support plate 2 and the second support plate 3, thus allowing for the inspection of the deformation state of crossbeam K5. In this fixture, the first support plate 2 can be adjusted arbitrarily in the vertical direction, while the second support plate 3 is welded and fixed to the support frame 1.

[0038] like Figures 4 to 7 As shown, a rotating rod 8 is rotatably mounted on the first support plate 2, and a rotating support 9 is provided at one end of the first support plate 2. The middle part of the rotating rod 8 is set in the round hole of the rotating support 9 through a round pin, and a plug 10 is sleeved on one end of the rotating rod 8.

[0039] Preferably, the thickness of the plug 10 is 10 mm.

[0040] Specifically, this fixture can detect not only the vertical deformation of the crossbeam 6, but also the horizontal deformation of the crossbeam 6. Rotating rods 8 are rotatably mounted on opposite sides of the first support plates 2, connected by rotating supports 9. Because a stopper 10 is fitted to the outer end of the rotating rod 8 on the first support plate 2, the end with the stopper 10 rotates downwards due to its weight. The inner end of the rotating rod 8, without the stopper 10, is lighter and can only rotate upwards. However, because the inner end is restricted by the first support plate 2, when there is no operation, the rotating rod 8 can only be positioned horizontally along the bottom side of the first support plate 2, thus not affecting the crossbeam. 6 is placed on the first support plate 2; after both ends of the crossbeam 6 are placed on the first support plate 2, one side of the crossbeam 6 is aligned with one end of the support frame 1, and it is ensured that one end of the crossbeam 6 is aligned with the support frame 1. The gap between the side of the crossbeam 6 and the other end of the support frame 1 is detected by the rotating rod 8 on the first support plate 2 at the other end. The outer end of the rotating rod 8 with the plug 10 is rotated upward. If the plug 10 cannot enter the gap between the crossbeam 6 and the support frame 1, it means that the horizontal deformation of the crossbeam 6 does not exceed the process requirements, and the crossbeam 6 is a qualified product; if the plug 10 is inserted into the gap between the crossbeam 6 and the support frame 1, it means that the horizontal deformation of the crossbeam 6 has exceeded the process requirements.

[0041] Preferably, a support 11 is provided at the lower end of the support frame 1.

[0042] Preferably, the support frame 1 is composed of multiple welded metal square tubes.

[0043] Specifically, the support frame 1 is welded from multiple metal square tubes, which improves the overall strength of the support frame 1 and easily ensures that the detection reference surfaces at both ends of one side of the support frame 1 correspond to the two end profiles of the crossbeam standard component. The second support plate 3 is welded to one side of the support frame 1 in the horizontal direction. Multiple positioning mechanisms are set at both ends of one side of the support frame 1. The corresponding positioning holes 4 are selected according to the model of the crossbeam 6, and the first support plate 2 is inserted into the corresponding positioning holes 4 through positioning pins 5. In this way, the deformation of the crossbeam 6 in the vertical and horizontal directions can be detected when it is placed. A support 11 is set on the lower side of the support frame 1, which allows the support frame 1 to be set at a height that is convenient for workers to operate. Workers can easily observe the gap between the second support plate 3 at the bottom of the support frame 1 without bending over, and can also easily rotate the rotating rod 8 to confirm whether the plug 10 can be inserted into the gap between the crossbeam 6 and the support frame 1.

[0044] In summary, when using this tooling to test the deformation of the K2 crossbeam, first locate the positioning hole 4 with the K2 identification mark, insert the positioning pin 5 of the first support plate 2 into the positioning hole 4, then a worker places both ends of the crossbeam 6 on the first support plate 2, confirms that the support seats 7 at both ends of the crossbeam 6 are completely placed on the first support plate 2, and places one end of the crossbeam 6 against a test reference surface of the support frame 1. Then observe whether there is a gap between the concave area in the middle of the crossbeam 6 and the second support plate 3 to confirm whether there is a deviation in the vertical direction of the crossbeam 6. Finally, rotate the rotating rod 8 to try to insert the plug hole into the gap between the other end of the crossbeam 6 and another test reference surface of the support frame 1, thereby confirming whether there is a deviation in the horizontal direction of the crossbeam 6. If the test results show that there is an out-of-tolerance problem in either the vertical or horizontal direction, it means that the crossbeam 6 is a deformed and unqualified product.

[0045] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A tooling for rapidly detecting the bending deformation of a cross-beam, characterized in that, include: A support frame is arranged vertically, with a first support plate at each end of one side of the support frame and a second support plate at the center of one side of the support frame. The support frame has multiple positioning mechanisms of different heights arranged vertically at both ends, and the positioning mechanisms are detachably connected to the first support plate. The support frame has detection reference surfaces at both ends on one side; The vertical distance between the first support plate and the second support plate is 10mm greater than the vertical distance between the corresponding crossbeam standard components.

2. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, The positioning mechanism includes two positioning holes arranged in the horizontal direction, and two positioning pins are provided at the bottom of the first support plate, the positioning pins being inserted into the positioning holes.

3. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, The area of ​​the first support plate is not less than the area of ​​the support seats at both ends of the cross beam.

4. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 3, characterized in that, The length of the second support plate is set to correspond to the length of the recessed section in the middle of the crossbeam.

5. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, When the crossbeam without bending deformation is placed on the first support plate, there is a 10mm gap between the middle of the crossbeam and the second support plate.

6. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, A rotating rod is rotatably mounted on the first support plate, and a rotating support is provided at one end of the first support plate. The middle part of the rotating rod is set in the round hole of the rotating support through a round pin, and a plug is sleeved on one end of the rotating rod.

7. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 6, characterized in that, The thickness of the plug is 10 mm.

8. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, A support is provided at the lower end of the support frame.

9. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, The support frame is composed of multiple welded metal square tubes.

10. The tooling for rapidly detecting the bending deformation of a cross-beam according to claim 1, characterized in that, Each of the positioning mechanisms has a model identification plate on one side.

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