Rail transit vehicle welding seam measuring device

Abstract

The utility model discloses a rail transit vehicle welding seam measuring device comprising a measuring seat, the measuring seat horizontally extends to form a boss, the boss comprises a bottom edge and a side edge, the bottom edge and the side edge are perpendicular to each other, the measuring seat is vertically provided with a sliding groove in the longitudinal direction, a scale plate is movably inserted in the sliding groove, and the scale plate is connected with the measuring seat. The scale plate is fixed on the measuring seat through a locking nut, and the upper end part of the scale plate is provided with an inclined measuring surface. The device is good in universality, can be applied to weld joint measurement at limited space of all rail transit vehicles, and avoids unnecessary repair of weld joints caused by misjudgment, such as increase of risks of brittleness and cracking of section bars caused by reduction of weld joint strength due to repeated welding repair, and more seriously, if unqualified weld joints are not found in time, the unqualified weld joints cannot be found in time. Potential safety hazards are brought to follow-up operation, a practical detection tool improves the measurement accuracy, meanwhile, the manufacturing cost and the time cost of an enterprise are reduced, and the risk of follow-up operation accidents is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit vehicle measurement, in particular to a rail transit vehicle weld measurement device. Background Art

[0002] Aluminum alloy car bodies are the core components of rail transit vehicles. Aluminum alloy car bodies are formed by welding together profiles of various shapes and specifications. The structural strength of the car body is closely related to the quality of the welds. Repeated high-speed driving, braking, and uneven lines during operation cause the car body to vibrate. This series of phenomena will be a severe test for the structural firmness of the car body. At the same time, a stable car body structure is required to provide passengers with a stable, safe, and comfortable riding experience after carrying passengers. The quality of the car body welds is the key to ensuring structural stability, and qualified welds are particularly important. The weld size is one of the important evaluation criteria for weld quality. In the daily production process, the weld size needs to be strictly controlled. However, in the actual application process, some areas have narrow spaces after welding due to the large number of welded parts (such as the welds between the body reinforcement modules, some welds in the body chassis traction, pillow, and buffer areas, and the side window sealing plates), which makes the existing measurement tools unable to be used and unable to accurately and quickly measure the welds in the space-constrained areas. Inaccurate measurement will lead to misjudgment, which will cause unnecessary repairs, or unqualified welds will not be discovered in time, and failure to repair in time will bring a series of safety hazards to the subsequent operation process. The inability to accurately measure the weld size in the space-constrained area will cause misjudgment, resulting in repeated repairs of the welds, resulting in a waste of cost and affecting the production cycle. The more far-reaching impact is that the weld size does not meet the requirements of the drawing and cannot be identified in time, which will bring safety hazards to the subsequent operation process. If a failure occurs, it will cause immeasurable economic losses. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a measuring device capable of measuring a weld in a narrow area.

[0004] The utility model discloses a rail transit vehicle weld measuring device, which comprises a measuring seat, wherein the measuring seat is horizontally extended with a boss, the boss comprises a bottom edge and a side edge, the bottom edge and the side edge are perpendicular to each other, the measuring seat is vertically provided with a slide groove, a scale plate is movably inserted in the slide groove, the scale plate is fixed to the measuring seat by a locking nut, and an inclined measuring surface is provided at the upper end of the scale plate.

[0005] According to some embodiments of the present invention, the inclined measuring surface is 45 degrees.

[0006] According to some embodiments of the present invention, a measurement scale is engraved on the side of the scale plate.

[0007] According to some embodiments of the utility model, the scale plate is provided with a fastening device consisting of a threaded hole and the locking nut.

[0008] According to some embodiments of the present invention, the height of the scale plate is 25 mm to 75 mm.

[0009] According to some embodiments of the present invention, the length of the bottom edge is 25 mm to 30 mm.

[0010] According to some embodiments of the present invention, the left and right side edges of the scale plate are engaged with the slide groove, so that the scale plate can slide up and down in the slide groove.

[0011] According to some embodiments of the present invention, the bottom measuring surface of the scale plate is perpendicular to the left and right side edges.

[0012] The utility model has at least the following beneficial effects: when measuring the weld foot (z value), the bottom measuring surface of the scale plate module is placed on the parent material, the measuring seat slides up and down so that the bottom edge is close to the weld foot edge of the weld to be measured, and the side edge should be close to the vehicle body during the sliding process, and after the bottom edge contacts the weld foot edge, the bottom edge and the measuring scale on the scale plate overlap position and the reading can be read. The upper end of the scale plate is provided with an inclined measuring surface, which can be used when measuring the weld height (a value), and only the inclined measuring surface needs to be clamped on the weld, and the weld (a value) is judged to be qualified by the fit between the inclined measuring surface and the weld. Compared with the existing technology, the utility model has good versatility and can be applied to weld measurement in all rail transit vehicles where space is limited. The product can avoid the problem of difficulty in weld measurement caused by a large number of welds in some areas and narrow space after welding. It can effectively solve the situation where measurement cannot be performed or measurement is inaccurate and causes misjudgment of results. At the same time, it can avoid unnecessary repair of welds due to misjudgment. Repeated welding repairs will reduce weld strength and make profiles brittle, increasing the risk of cracking. What's more serious is that if unqualified welds are not discovered in time, they will bring safety hazards to subsequent operations. Practical detection tools improve the accuracy of measurement, while reducing the company's manufacturing cost, time cost and the risk of subsequent operational accidents.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2This is a schematic diagram of the structure of the measuring seat of the utility model.

[0017] Figure 3 It is a schematic diagram of the scale plate structure of the utility model. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figure 1 A rail transit vehicle weld measurement device includes a measuring seat 1, wherein the measuring seat 1 has a boss 11 extending horizontally, wherein the boss includes a bottom edge 111 and a side edge 112, wherein the bottom edge 111 is 25 mm to 30 mm long. The measuring seat 1 is provided with two sizes, which are selected according to different scenarios, wherein the bottom edge 111 is 30 mm or 25 mm long. The bottom edge 111 and the side edge 112 are perpendicular to each other.

[0023] Reference Figure 2 The measuring seat 1 is vertically provided with a slide groove 12, in which a scale plate 2 is movably inserted, and a measuring scale 22 is engraved on the side of the scale plate 2. The height of the scale plate 2 is 25mm to 75mm. The scale plate 2 is provided with four sizes, namely 25mm, 35mm, 55mm and 75mm. The two specifications of the measuring seat 1 can be used with the scale plates 2 of four specifications.

[0024] Reference Figure 3 The scale plate 2 is fixed on the measuring seat 1 by a locking nut 3. An inclined measuring surface 21 is provided on the upper end of the scale plate 2, and the inclined measuring surface 21 is 45 degrees.

[0025] The scale plate 2 is movably inserted in the slide groove 12, and the left and right side edges 24, 25 of the scale plate 2 are engaged with the slide groove 12, so that the scale plate 2 can slide up and down in the slide groove 12, but cannot be separated in the horizontal direction. The bottom measuring surface 26 of the scale plate 2 is perpendicular to the left and right side edges 24, 25. The scale plate 2 is provided with a fastening device composed of a threaded hole 23 and the locking nut 3, which fixes the scale plate 2 on the measuring seat 1. This design can limit the travel of the scale plate 2 and the measuring seat 1 to ensure the accuracy of the reading.

[0026] When measuring the weld foot (z value), the bottom measuring surface 26 of the scale plate module 2 is pressed against the base material, and the measuring seat 1 slides up and down so that the bottom edge 111 is in close contact with the weld foot edge of the weld to be measured, and the side edge 112 should be in close contact with the vehicle body during the sliding process. After the bottom edge 111 contacts the weld foot edge, the bottom edge 111 and the measuring scale 22 on the scale plate 2 overlap and the reading can be taken.

[0027] The upper end of the scale plate 2 is provided with an inclined measuring surface 21, which can be used when measuring the weld height (a value). It is only necessary to clamp the inclined measuring surface 21 on the weld, and judge whether the weld (a value) is qualified by the fit between the inclined measuring surface 21 and the weld. Compared with the prior art, the utility model has good versatility and can be applied to weld measurement in all rail transit vehicles where space is limited. The product can avoid the problem of difficulty in weld measurement caused by a large number of welded parts in some areas in the past and narrow space after welding, and effectively solve the situation where the measurement is unable to be measured or the measurement is inaccurate, resulting in misjudgment of the results. At the same time, it avoids unnecessary repair of welds due to misjudgment. For example, repeated welding repair will reduce the strength of the weld and make the profile brittle, and the risk of cracking will increase. More seriously, if the unqualified weld is not discovered in time, it will bring safety hazards to the subsequent operation. The practical detection tool improves the accuracy of the measurement, while reducing the manufacturing cost and time cost of the enterprise and reducing the risk of subsequent operation accidents.

[0028] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A rail transit vehicle weld measurement device, characterized in that: The measuring seat (1) comprises a measuring seat (1), wherein the measuring seat (1) is provided with a boss (11) extending horizontally, wherein the boss comprises a bottom edge (111) and a side edge (112), wherein the bottom edge (111) and the side edge (112) are perpendicular to each other, wherein the measuring seat (1) is provided with a slide groove (12) vertically arranged in the longitudinal direction, wherein a scale plate (2) is movably inserted in the slide groove (12), wherein the scale plate (2) is fixed to the measuring seat (1) by a locking nut (3), and an inclined measuring surface (21) is provided at the upper end of the scale plate (2).

2. A rail transit vehicle weld measurement device according to claim 1, characterized in that: The inclined measuring surface (21) is 45 degrees.

3. A rail transit vehicle weld measurement device according to claim 1, characterized in that: The side surface of the scale plate (2) is engraved with a measurement scale (22).

4. A rail transit vehicle weld measurement device according to claim 1, characterized in that: The scale plate (2) is provided with a fastening device consisting of a threaded hole (23) and the locking nut (3).

5. The rail transit vehicle weld seam measuring device according to claim 1, characterized in that: The height of the scale plate (2) is 25 mm to 75 mm.

6. A rail transit vehicle weld measurement device according to claim 1, characterized in that: The length of the bottom edge (111) is 25 mm to 30 mm.

7. A rail transit vehicle weld measurement device according to claim 1, characterized in that: The left and right side edges (24, 25) of the scale plate (2) are engaged with the slide groove (12) so that the scale plate (2) can slide up and down in the slide groove (12).

8. A rail transit vehicle weld seam measuring device according to claim 7, characterized in that: The bottom measuring surface (26) of the scale plate (2) is perpendicular to the left and right side edges (24, 25).

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