Special measuring tool for frog assembly surface detection

Abstract

The utility model provides a special measuring tool for frog assembly surface detection. The special measuring tool comprises a main ruler and an auxiliary ruler, the outline structure of the main ruler is the same as that of a to-be-detected assembly surface of the frog and is fit and matched with the to-be-detected assembly surface; the main ruler is provided with a horizontal chute at the position of the horizontal detection datum line; an auxiliary ruler of a horizontal long-strip-shaped structure is installed in the horizontal sliding groove in a horizontal sliding fit mode. The main ruler and the auxiliary ruler are provided with scale marks in the direction of the horizontal detection datum line. The scale marks of the main ruler are equally divided scale marks with millimeter as a unit from left to right; the scale marks of the auxiliary ruler are 49 mm equally-divided scale marks with 50 scales; when the right end of the auxiliary ruler is flush with the right end of the main ruler, the 0 point of the main ruler is aligned with the 0 point of the auxiliary ruler. The device can accurately reflect the quantitative detection of the frog point rail, the wing rail and the spacer iron assembly surface, and meets the assembly requirements of the frog point rail, the wing rail and the spacer iron assembly surface, so that the purposes of controlling the machining allowance of the assembly surface, avoiding repeated repair and assembly and improving the assembly efficiency are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of physical measurement and test dimension measurement, and in particular relates to a special measuring tool for frog assembly surface detection. Background Art

[0002] The frog is the core component of the lane-changing equipment on the railway line. The frog's heart rail, wing rail, spacer and rail are assembled together to form a complete frog. The assembly surface of the frog (heart rail, wing rail, spacer) is composed of planes and arcs at different angles (such as Figure 2 , Figure 3 , Figure 4 ), quantitative detection is more complicated.

[0003] In the process of machining and testing the assembly surface of the frog (heart rail, wing rail, spacer iron), qualitative test samples, steel rulers and test rail heads are mainly used. The disadvantages are: the accuracy of the test gauge is low, the product quality control is unstable, and the accuracy rate is not high. In the process of assembling the finished frog and the rail, there are often problems such as mismatch of the assembly surface contour, out-of-tolerance of the wheel flange groove size, and out-of-tolerance of the spacer iron assembly gap size, which affects the assembly efficiency.

[0004] In this regard, it is particularly important to detect the contour size, position, and processing accuracy of the assembly surface of the frog (heart rail, wing rail, and spacer iron); therefore, it is necessary and feasible to design a special quantitative detection tool based on the existing detection means, and the following technical solution is proposed. Utility Model Content

[0005] The utility model solves the technical problem of providing a special measuring tool for frog assembly surface detection, which solves the technical problem of accurate quantitative detection of the mutual position relationship of frog assembly surfaces.

[0006] The utility model adopts the following technical scheme: a special measuring tool for detecting the assembly surface of a frog, comprising a main ruler and a sub-rule; the outline structure of the main ruler is the same as the outline structure of the assembly surface to be detected of the frog and is fitted and matched; a horizontal sliding groove is formed on the main ruler at the position of the horizontal detection reference line; a sub-rule with a horizontal long strip structure is fitted and installed in the horizontal sliding groove for horizontal sliding; scale lines are formed on the main ruler and the sub-rule along the direction of the horizontal detection reference line; the scale lines of the main ruler are equally divided scale lines with millimeters as the unit from left to right; the scale lines of the sub-rule are equally divided scale lines of 49mm with 50 divisions; when the right end of the sub-rule is flush with the right end of the main ruler, the "0" point of the main ruler and the "0" point of the sub-rule are aligned.

[0007] In the above technical solution, as an application embodiment of the utility model: the frog includes a heart rail, a wing rail, and a spacer iron.

[0008] Among the above technical solutions, as the first technical solution of the present utility model: the main scale is an I-shaped structure, and the main scale contour structure of the I-shaped structure fits closely with the contour of the assembly surface to be detected of the frog.

[0009] Among the above technical solutions, as the second technical solution of the present utility model: only the right side contour structure of the main scale is closely matched with the contour of the assembly surface to be detected of the frog.

[0010] In the above technical solution, as a further improvement of the utility model: the position of the secondary ruler is locked by a top screw.

[0011] In the above-mentioned technical solution 1, as an adaptability improvement of the utility model: the scale lines of the main scale are equally divided scale lines of 0 to 60 mm from left to right.

[0012] In the above technical solution 2, as an adaptability improvement of the utility model: the scale range of the main scale is determined according to the width of the upper part of the main scale.

[0013] In the above technical solution, as a further improvement of the present utility model: the rightmost end of the secondary ruler is a horizontally placed right-angled trapezoidal structure.

[0014] In the above technical solution, preferably: the upper end surface of the main scale and the top end surface of the frog are always at the same horizontal reference.

[0015] The advantages of the utility model compared with the prior art are as follows: the minimum scale (precision) of the measuring tool of the utility model is 0.02mm, so it can accurately reflect the quantitative detection of the assembly surface of the frog heart rail, wing rail and spacer iron, meet the assembly requirements of the frog heart rail, wing rail and spacer iron assembly surface, thereby controlling the machining allowance of the assembly surface, avoiding repeated repairs and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the frog of the utility model;

[0017] Figure 2 for Figure 1 AA section view of the assembly surface to be tested of the wing rail;

[0018] Figure 3 for Figure 1 BB's cross-sectional view of the assembly surface to be inspected of the center rail;

[0019] Figure 4 for Figure 1 The cross-sectional view of the assembly surface to be tested of the CC spacer iron;

[0020] Figure 5 The figure shows the size of the clearance between the wing rail and the steel rail to be tested;

[0021] Figure 6It is a schematic diagram of the width of the wheel flange groove to be tested for the cooperation between the center rail and the rail;

[0022] Figure 7 It is a schematic diagram of the clearance size to be tested between the spacer iron and the rail;

[0023] Figure 8 This is a schematic diagram of the measuring tool structure in the technical solution 1, in which the main ruler is an I-shaped structure;

[0024] Fig. 9 It is a schematic diagram of the measuring tool structure of the second technical solution;

[0025] Fig.10 It is a schematic diagram of the frog center rail assembly surface detection working condition of the technical solution 1;

[0026] Fig.11 It is a schematic diagram of the frog center rail assembly surface detection working condition of the second technical solution;

[0027] Fig.12 It is a schematic diagram of the frog wing rail assembly surface detection working condition of the technical solution 1;

[0028] Fig.13 It is a schematic diagram of the frog wing rail assembly surface detection working condition of the second technical solution;

[0029] Fig.14 It is a schematic diagram of the detection working condition of the frog spacer assembly surface of the technical solution 1;

[0030] Fig.15 It is a schematic diagram of the inspection working condition of the frog spacer assembly surface of the second technical solution;

[0031] In the figure: 1-main ruler, 2-secondary ruler, 3-frog, 301-assembly surface to be tested, 101-horizontal test reference line, 102-horizontal slideway, 3-1 heart rail, 3-2 wing rail, 3-3 spacer iron, 4-top screw. DETAILED DESCRIPTION

[0032] The following will be combined with the attached embodiment of the present utility model Figure 1-15 , clearly and completely describe the technical solutions in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] A special measuring tool for frog assembly surface detection (such as Figure 8 , Fig. 9The main scale 1 and the auxiliary scale 2 are shown in the figure; the main scale 1 has the same outline structure as the assembly surface 301 to be detected of the frog 3 and fits well. That is, the position and shape detection is realized; if they fit well, the position and shape are qualified, and if they cannot fit well, they are unqualified.

[0034] The main ruler 1 is at its horizontal detection reference line 101 position (such as Figures 5 to 7 As shown) to open the horizontal slide 102 (combined with Fig. 9 , Fig. 9 ); The horizontal slide groove 102 is adapted to horizontally slide and install the secondary ruler 2 of horizontal long strip structure.

[0035] The main ruler 1 and the secondary ruler 2 are both provided with scale lines along the direction of the horizontal detection reference line 101; the scale lines of the main ruler 1 are equally divided scale lines in millimeters from left to right; the scale lines of the secondary ruler 2 are equally divided scale lines of 49mm with 50 divisions.

[0036] In addition, when the right end of the sub-rule 2 is flush with the right end of the main ruler 1, the "0" point of the main ruler 1 and the "0" point of the sub-rule 2 are aligned.

[0037] Reading principle: The technical advantage of the 250-division 49mm scale of the secondary ruler is mainly reflected in its accuracy and measurement capability. The following is a detailed principle of use: The 50-division secondary ruler divides the total length of 49mm into 50 equal divisions, and the length of each scale is 0.98mm. Since the difference between the main ruler and the secondary ruler is ΔX=1mm-0.98mm=0.02mm, the minimum scale (precision) of the measuring tool is 0.02mm. This means that the measuring tool can measure the length very accurately and meet the application scenarios requiring high-precision measurement. When a scale line on the secondary ruler 2 is aligned with the scale line on the main ruler 1, the measurement result can be easily read. By determining that the nth scale line on the secondary ruler is aligned with the scale line on the main ruler, the number x less than 1mm can be calculated by the formula x=0.02n. Then, add the integer mm number y read on the main ruler to x to get the exact value of the length to be measured L=y+x=y+0.02n(mm).

[0038] In the above embodiment, as an application embodiment of the utility model, the frog 3 includes a center rail 3-1, a wing rail 3-2, a spacer iron 3-3 (such as Figures 1 to 4 as shown; Figures 5 to 7 as shown; Figures 11 to 15 As shown). It can be used to measure the clearance size when the wing rail and the rail are matched (such as Figure 5 As shown); to achieve the flange groove width measurement when the center rail and the rail are matched (as shown Figure 6 As shown); to achieve the measurement of the matching gap size when the spacer iron and the rail are matched (as shown Figure 7 as shown).

[0039] In the above embodiment, as the technical solution 1 of the utility model: (such as Figure 8 The main scale 1 is an I-shaped structure, and the outline structure of the main scale 1 of the I-shaped structure fits well with the assembly surface 301 to be detected of the frog 3, or the outline structure is the same as that of the frog 3. The frog outline size, position and processing accuracy can be measured.

[0040] In the above embodiment, as the second technical solution of the utility model: (such as Fig. 9 As shown in the figure, only the right side contour structure of the main scale 1 is closely matched with the contour of the assembly surface 301 to be detected of the frog 3, or the contour structure is the same as that of the frog 3.

[0041] In the above embodiment, as a further improvement of the utility model: the secondary ruler 2 is locked in position by a top screw 4 (combined with Figure 8 , Fig. 9 That is, the position of the secondary ruler 2 is locked by tightening, so as to facilitate the positioning and reading after the measuring tool is removed.

[0042] In the above technical solution 1, (such as Figure 8 As shown in the figure, as an adaptability improvement of the utility model, the scale lines of the main ruler 1 are equally divided scale lines of 0 to 60 mm from left to right, which is suitable for detecting the I-shaped rail with the same profile as the matching rail.

[0043] In the above technical solution 2, (such as Fig. 9 As shown in the figure, as an adaptability improvement of the present invention, the scale range of the main scale 1 is determined according to the width of the upper part of the main scale 1. That is, it is suitable for frog detection where only the right side is in close contact with the matching rail profile.

[0044] In the above embodiment, as a further improvement of the utility model: the rightmost end of the secondary ruler 2 is a horizontally placed right-angled trapezoidal structure. The right-angled trapezoidal structure allows the secondary ruler 2 to stay in the desired position more accurately, thereby improving the accuracy of the measurement. This right-angled part can be aligned with a specific position of the measuring device to ensure the correct placement of the secondary ruler 2. This positioning function helps to reduce human errors and improve the accuracy of the measurement. The right-angled trapezoidal structure has a stronger structural strength than other shapes (such as rectangles or circles), which means that the secondary ruler 2 is less likely to be deformed or damaged when subjected to external forces, thereby improving its durability and service life. The design of the right-angled trapezoid usually includes a clear edge or reference line, which helps the user to read the scale value on the secondary ruler 2 more accurately. In situations where precise measurement is required, this design can significantly improve the accuracy and reliability of the measurement results.

[0045] In the above embodiment, preferably: the upper end surface of the main scale 1 and the top end surface of the frog 3 are always at the same horizontal reference (such as Figures 5 to 7 ;like Figures 10 to 15), to adapt to the position of the horizontal detection reference line 101.

[0046] It should be noted that the structure of the special measuring tool of the utility model is not only applicable to the combined frogs of the existing 9 types of rail types: 115RE, 136RE, 132RE, 133RE, 100-8, 50kg / m, 60kg / m, 75kg / m, and 54E1, but also applicable to the combined frogs of the subsequently newly developed rail types.

[0047] The utility model relates to a quantitative detection method of a frog assembly surface detection special measuring tool, which uses any of the frog assembly surface detection special measuring tools to quantitatively detect the assembly surface 301 of the frog 3 to be detected, and the quantitative detection method includes the following steps:

[0048] S1. Reset: Align the "0" point of the main scale 1 with the "0" point of the secondary scale 2.

[0049] S2, set the reference: fit the right side contour of the main scale 1 with the assembly surface 301 to be tested of the frog 3, and make the upper end surface of the main scale 1 and the top end surface of the frog 3 at the same horizontal reference. When they can fit, it proves that the position and shape of the assembly surface 301 to be tested meet the design requirements; otherwise, the shape does not meet the design requirements.

[0050] S3, detection: move the secondary ruler 2 to the right, and make the right vertical end face of the secondary ruler 2 fit the assembly surface 301 to be detected of the frog 3. Even if the secondary ruler 2 exceeds the length of the main ruler 1, the secondary ruler 2 moves along the main ruler 1 and exceeds the right numerical range of the main ruler 1, solving the technical problem of the main ruler 1 cooperating with the secondary ruler 2 of the long strip structure to complete the position dimension measurement of the assembly surface 301.

[0051] S4, Locking: Use the top screw 4 to lock the position of the secondary ruler 2.

[0052] S5. Reading: After removing the measuring tool, read the displacement of the secondary ruler 2 relative to the main ruler 1 to obtain the required quantitative test value. The reading principle of the utility model has been described above and will not be repeated here.

[0053] Through the above description, it can be found that the vertical part of the main scale 1 of the utility model adopts the same structural profile (or simplified profile) as the assembly rail, and the auxiliary scale 2 exceeds the length of the main scale 1 and moves along the main scale 1 to obtain the left or right numerical range beyond the main scale 1. The minimum scale (precision) of the measuring tool of the utility model is 0.02mm, which can not only realize the profile size and position detection of the assembly surface, but also accurately reflect the quantitative detection of the assembly surface of the frog heart rail, wing rail, and spacer iron, meet the assembly requirements of the frog heart rail, wing rail, and spacer iron assembly surface, thereby controlling the machining allowance of the assembly surface, avoiding repeated repairs, and improving the assembly efficiency.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification and equivalent replacement made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A special measuring tool for frog assembly surface detection, comprising a main ruler (1) and a secondary ruler (2); characterized in that: The main scale (1) has an outline structure identical to that of the assembly surface (301) to be detected of the frog (3) and fits snugly therewith; the main scale (1) is provided with a horizontal slide groove (102) at the position of its horizontal detection reference line (101); a sub-scale (2) of a horizontal long strip structure is horizontally slidably adapted and installed in the horizontal slide groove (102); both the main scale (1) and the sub-scale (2) are provided with scale lines along the direction of the horizontal detection reference line (101); the scale lines of the main scale (1) are scale lines equally divided from left to right in millimeters; the scale lines of the sub-scale (2) are scale lines equally divided in 50-division 49mm units; when the right end of the sub-scale (2) is flush with the right end of the main scale (1), the "0" point of the main scale (1) and the "0" point of the sub-scale (2) are aligned.

2. The special measuring tool for frog assembly surface detection according to claim 1, characterized in that: The frog (3) comprises a center rail (3-1), a wing rail (3-2), and a spacer rail (3-3).

3. The special measuring tool for frog assembly surface detection according to claim 1, characterized in that: The main scale (1) is an I-shaped structure, and the contour structure of the main scale (1) of the I-shaped structure fits snugly with the contour of the assembly surface (301) to be tested of the frog (3).

4. The special measuring tool for frog assembly surface detection according to claim 1, characterized in that: Only the right side contour structure of the main scale (1) fits snugly with the contour of the assembly surface (301) to be tested of the frog (3).

5. The special measuring tool for frog assembly surface detection according to claim 1, characterized in that: The position of the secondary ruler (2) is locked by means of a top screw (4).

6. The special measuring tool for frog assembly surface detection according to claim 1 or 3, characterized in that: The main scale (1) has graduations of 0 to 60 mm from left to right.

7. The special measuring tool for frog assembly surface detection according to claim 1 or 4, characterized in that: The scale range of the main scale (1) is determined according to the width of the upper part of the main scale (1).

8. The special measuring tool for frog assembly surface detection according to claim 1 or 5, characterized in that: The rightmost end of the secondary ruler (2) is a horizontally placed right-angled trapezoidal structure.

9. The special measuring tool for frog assembly surface detection according to claim 1, characterized in that: The upper end surface of the main scale (1) and the top end surface of the frog (3) are always on the same horizontal reference.

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