A rail vehicle paint swatch grid test apparatus

Abstract

The utility model discloses a rail vehicle paint sample board grid test equipment, it includes skeleton frame, skeleton frame is by horizontal pole, vertical pole and vertical pole assembly and become cuboid frame structure, the clamping structure for clamping paint coating sample board is connected on the lower frame of skeleton frame, the upper frame of skeleton frame is provided with left and right guide rails symmetrically, and the truss is slidably installed through the sliding block between left and right guide rails, and the cutter for drawing grid is fixed on the truss, and the cutter includes the casing fixed perpendicularly on the truss, and the upper end and the lower end of the inner chamber of casing are provided with upper limit position platform and lower limit position platform respectively, and the vertical column is inserted in the casing, and the grid blade is connected to the bottom of vertical column, and a plurality of cutting edges are evenly horizontally spaced and arranged on the grid blade, which effectively improves the grid quality and stability, and reduces the influence on the accurate judgment of the paint coating adhesion result.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary testing equipment for rail vehicles, and in particular to a cross-cut test equipment for paint samples of rail vehicles. Background Technology

[0002] With economic development and technological progress, the rail transit industry has also ushered in a period of prosperity. As a crucial process in the special protection of rail vehicles, the quality of paint spraying directly affects customer satisfaction and the aesthetics, durability, and other quality characteristics of the paint. The paint cross-cut test is a critical step in determining whether the key quality characteristic of paint adhesion after spraying is qualified. Currently, cross-cutting of rail vehicle paint spraying samples mainly relies on a single, simple tool. During the cross-cutting of the test sample, the sample is affected by movement, making it easy to encounter problems such as sample movement, difficulty in consistently controlling the direction of the cross-cutting, and inconsistencies in the force applied by the person performing the cross-cutting. This results in inconsistent scratch depth and incomplete formation of small squares, affecting the accurate judgment of paint coating adhesion results. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cross-cut test device for rail vehicle paint samples that is easy to operate and ensures reliable test results.

[0004] This utility model discloses a cross-cutting test device for paint samples of rail vehicles, comprising a skeleton frame, which is a cuboid frame structure assembled from horizontal bars, vertical bars, and vertical rods. A clamping structure for clamping the paint coating sample is connected to the lower frame of the skeleton frame. Left and right guide rails are symmetrically arranged on the upper frame of the skeleton frame. A truss is slidably mounted between the left and right guide rails via a slider. A cross-cutting tool is fixed on the truss. The tool includes a housing vertically fixed to the truss. An upper limit platform and a lower limit platform are respectively provided at the upper and lower ends of the inner cavity of the housing. A column passes through the housing, and a cross-cutting blade is connected to the bottom of the column. Several blades are evenly and laterally spaced on the cross-cutting blade. A boss is provided at the top of the column. An upper spring and a lower spring are provided inside the housing. The upper spring is located between the upper limit platform and the boss, and the lower spring is located between the boss and the lower limit platform.

[0005] According to some embodiments of the present invention, the clamping structure is a pressure strip connected to the lower frame by fastening bolts.

[0006] According to some embodiments of this utility model, there are four pressure strips, which are respectively arranged on the two horizontal bars and two vertical bars of the lower frame.

[0007] According to some embodiments of this utility model, the skeleton frame is fixed by connecting and fixing horizontal bars, vertical bars and vertical rods through mounting bolts.

[0008] According to some embodiments of this utility model, the bottom of the lower frame is connected with anchor bolts.

[0009] According to some embodiments of this utility model, there are four anchor bolts, which are located at the four corners of the lower frame.

[0010] According to some embodiments of this utility model, a support beam is provided in the middle of the lower frame.

[0011] According to some embodiments of this utility model, a lifting auxiliary rod is horizontally connected to the column.

[0012] According to some embodiments of this utility model, the scribbling blade is fixedly installed at the bottom of the column by locking bolts.

[0013] According to some embodiments of this utility model, the truss is fixedly mounted with a cutting tool by bolts.

[0014] This utility model has at least the following beneficial effects: Compared with existing cross-cut test operation methods and control technologies, this auxiliary device integrates functions such as sample fixing, cross-cut direction and cross-cut force consistency during cross-cut paint coating sample tests. Specifically, it solves the problems of sample movement, cross-cut direction deviation and difficulty in controlling the force of the cross-cutting personnel, resulting in inconsistent scratch depth and failure to form small squares. It improves cross-cut quality and stability and reduces the impact on the accurate judgment of paint coating adhesion results.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the cutting tool structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-cut blade structure of this utility model. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are 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.

[0023] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Reference Figure 1 A cross-cut test device for paint samples of rail vehicles includes a skeleton frame 1, which is used for the fastening and installation of the components involved in the device. The skeleton frame 1 is a cuboid frame structure assembled from horizontal bars 11, vertical bars 12 and vertical bars 13. The horizontal bars 11 and vertical bars 12 respectively form an upper frame 15 and a lower frame 14, which are connected and fixed by the vertical bars 13. In order to ensure the strength of the product, the horizontal bars 11, vertical bars 12 and vertical bars 13 are made of aluminum profiles with high hardness and strong bearing capacity. In addition, in order to facilitate assembly and disassembly, all connection positions are fixed by mounting bolts.

[0026] The lower frame 14 of the skeleton frame 1 is connected to a clamping structure 2 for clamping the paint coating sample. The clamping structure 2 is used to clamp the paint coating sample for the cross-cut test, fixing the paint sample to prevent movement. The clamping structure 2 consists of pressure strips 22 connected to the lower frame 14 by fastening bolts 21. There are four pressure strips 22, which are respectively set on the two horizontal bars 11 and two vertical bars 12 of the lower frame 14. During the paint sample test, the paint coating sample is first placed under the pressure strips 22, and the sample is tightened or loosened by tightening or loosening the fastening bolts 21 to prevent the sample from moving when subjected to cross-cut test force. In order to support the paint sample, a support beam 7 is provided in the middle of the lower frame 14.

[0027] The upper frame 15 of the skeleton frame 1 is symmetrically provided with left and right guide rails 3. A truss 4 is slidably installed between the left and right guide rails 3 via a slider. A scriber 5 for marking is fixed on the truss 4. The left and right guide rails 3 are used for the linear movement of the scriber 5 back and forth to ensure that straight lines and square and neat scratches are drawn on the template, providing a test result to determine whether the paint adhesion is qualified.

[0028] Reference Figure 2 , Figure 3 , Figure 4 The cutting tool 5 includes a housing 51 vertically fixed to the truss 4 by bolts. The upper end and lower end of the inner cavity of the housing 51 are respectively provided with an upper limit platform 511 and a lower limit platform 512. A column 52 is inserted through the housing 51. The bottom of the column 52 is connected to a crisscross blade 53 by a locking bolt. Several blades 531 are evenly and laterally spaced on the crisscross blade 53. A boss 521 is provided on the top of the column 52. An upper spring 54 and a lower spring 55 are provided inside the housing 51. The upper spring 54 is located between the upper limit platform 511 and the boss 521, and the lower spring 55 is located between the boss 521 and the lower limit platform 512. During the design, the crisscross blade 53 is 2-3mm lower than the plane of the lower frame 14. The height of the blade 5 and the scratching force can be adjusted by changing the upper spring 54 and the lower spring 55 with different lengths and elastic forces. A lifting auxiliary rod 56 is horizontally connected to the column 52. After manually pulling the auxiliary rod 56 upward, the crisscross blade 53 is pressed onto the clamped paint test sample surface, and the pusher mechanism is moved stably to carry out the crisscross test and achieve the expected crisscross results.

[0029] The bottom of the lower frame 14 is connected to four anchor bolts 6, located at the four corners of the lower frame 14. These anchor bolts 6 are nylon anchor bolts, used for adjusting the height of the overall frame and providing anti-slip properties.

[0030] During the paint sample test, the paint-coated sample is first placed under the pressure strip 22. The sample is tightened or loosened by adjusting the fastening bolts 21 to prevent movement when the sample is under pressure during the grading process. Then, the column 52 is manually pulled upwards to press the grading blade 53 onto the clamped paint test sample surface. Generally, the grading blade 53 is 2-3 mm lower than the plane of the lower frame 14. The height and grading force of the blade 5 can be adjusted by changing the upper spring 54 and lower spring 55 with different lengths and elasticities. Finally, the blade 5 is pushed to move back and forth in a straight line on the left and right guide rails 3. Since the grading blade 53 has several blades 531 evenly spaced laterally, it ensures that several neat straight lines are drawn on the sample. Then, the pressure strip 22 is released, and the sample is rotated. After moving 90 degrees and re-clamping, the cutter 5 is pushed again, thus forming small squares on the sample. Compared with existing cross-cut test operation methods and control technologies, this auxiliary device integrates functions such as sample fixing, cross-cut direction and cross-cut force consistency during cross-cut paint coating sample tests. Specifically, it solves the problems of sample movement, cross-cut direction deviation and difficulty in controlling the force of the cross-cutting personnel, resulting in uneven scratch depth and failure to form small squares. It improves cross-cut quality and stability and reduces the impact on the accurate judgment of paint coating adhesion results.

[0031] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cross-cut test device for paint samples of rail vehicles, characterized in that, The system includes a skeleton frame (1), which is a cuboid frame structure assembled from crossbars (11), longitudinal bars (12), and vertical bars (13). A clamping structure (2) for clamping a paint coating sample is connected to the lower frame (14) of the skeleton frame (1). Left and right guide rails (3) are symmetrically arranged on the upper frame (15) of the skeleton frame (1). A truss (4) is slidably installed between the left and right guide rails (3) via a slider. A scriber (5) for marking is fixed on the truss (4). The scriber (5) includes a housing (51) vertically fixed on the truss (4). The upper end and lower end of the inner cavity of the housing (51) are connected to the truss (4). The upper limit platform (511) and the lower limit platform (512) are respectively provided at the ends. A column (52) is inserted through the housing (51). A squaring blade (53) is connected to the bottom of the column (52). Several blades (531) are evenly and horizontally spaced on the squaring blade (53). A boss (521) is provided at the top of the column (52). An upper spring (54) and a lower spring (55) are provided inside the housing (51). The upper spring (54) is located between the upper limit platform (511) and the boss (521). The lower spring (55) is located between the boss (521) and the lower limit platform (512).

2. The cross-cut test equipment for rail vehicle paint samples according to claim 1, characterized in that, The clamping structure (2) is a pressure strip (22) connected to the lower frame (14) by fastening bolts (21).

3. The cross-cut test equipment for paint samples of rail vehicles according to claim 2, characterized in that, The pressure strips (22) consist of four pieces, which are respectively installed on the two horizontal bars (11) and two vertical bars (12) of the lower frame (14).

4. The cross-cut test equipment for rail vehicle paint samples according to claim 1, characterized in that, The skeleton frame (1) is fixed by connecting and fixing the horizontal bar (11), the vertical bar (12) and the vertical bar (13) with mounting bolts.

5. The cross-cut test equipment for paint samples of rail vehicles according to claim 1, characterized in that, The bottom of the lower frame (14) is connected to anchor bolts (6).

6. The cross-cut test equipment for paint samples of rail vehicles according to claim 5, characterized in that, There are four anchor bolts (6), which are located at the four corners of the lower frame (14).

7. The cross-cut test equipment for paint samples of rail vehicles according to claim 1, characterized in that, A support beam (7) is provided in the middle of the lower frame (14).

8. The cross-cut test equipment for paint samples of rail vehicles according to claim 1, characterized in that, A lifting auxiliary rod (56) is horizontally threaded through the column (52).

9. The cross-cut test equipment for paint samples of rail vehicles according to claim 1, characterized in that, The scribing blade (53) is fixedly installed at the bottom of the column (52) by locking bolts.

10. The cross-cut test equipment for paint samples of rail vehicles according to claim 1, characterized in that, The truss (4) is fixedly mounted with a cutting tool (5) by bolts.

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