A motor train unit bogie frame hole position calibration auxiliary tool

Abstract

This utility model discloses an auxiliary tool for calibrating machining holes in a high-speed train bogie frame, including a mounting base. A detection component is provided on one side of the mounting base, and clamping components are provided on the top and bottom of the mounting base. A measuring component is provided on the detection component. The detection component includes a rotating rod, an elliptical wheel, a guide rod, an L-shaped plate, a detection needle, and a spring A. Through the cooperation between the detection component, sleeve, inner sleeve rod, spring B, clamping plate, roller, triangular block, and measuring component, this utility model adopts a lightweight design, with a small and portable overall size. It can be flexibly transported to the work site without additional handling equipment. It can be directly fixed to the outside of the high-speed train bogie. With the help of a sliding mechanism adapted to the frame structure, after completing a set of hole detections, there is no need for repeated disassembly and installation. It can be quickly switched to the next detection station simply by sliding smoothly along the bogie.

Description

Technical Field

[0001] This utility model relates to the field of hole position calibration technology, specifically an auxiliary tool for calibrating the hole positions in the bogie frame of a high-speed train. Background Technology

[0002] The bogie frame of a high-speed train is mostly made of high-strength alloy steel and welded in one piece. Its structure is complex and large, requiring the machining of dozens of holes of different specifications, including positioning holes, assembly holes, and connection holes. The machining accuracy of these holes directly determines the assembly accuracy, operational stability, and train safety of the bogie. Specifically, the positional deviation of critical holes must be controlled within ±0.02mm, and the coaxiality and perpendicularity tolerances must meet the IT5 level accuracy requirements of GB / T1184-2008. The dimensional deviation of ordinary mounting holes must also not exceed ±0.1mm. Therefore, hole calibration is necessary during the machining of the high-speed train bogie frame.

[0003] A patent with the existing authorization announcement number "CN221952916U" discloses an adjustable inner hole correction device, including a main body, a rotating arm rotatably mounted on the main body, and a position sensor installed at one end of the main body. A guide hole extending longitudinally along the rotating arm is provided at the end away from the position sensor. A variable probe is slidably fitted in the guide hole and a probe is mounted on the variable probe. A locking component is installed at the guide hole for adjustable connection and fixation of the variable probe relative to the rotating arm. The variable probe is provided with several scale lines for marking the ratio of the distance from the position sensor to the rotation center of the rotating arm to the distance from the probe to the rotation center of the rotating arm.

[0004] However, this device has the following shortcomings:

[0005] 1. Existing hole calibration tools have obvious limitations when calibrating the holes of EMU bogies: due to the lack of an integrated mobile design adapted to the bogie structure, after each hole is inspected, the tool must be disassembled as a whole and the installation position and calibration benchmark must be readjusted before the next hole can be inspected. This seriously reduces the convenience and continuity of hole calibration and greatly extends the overall inspection cycle.

[0006] 2. Since the bogies of EMU trains need to be adapted to different speed levels, axle load specifications and operating scenarios, there are certain differences in parameters such as the frame width of different bogie models. The existing hole calibration tool's fixed structure can only be matched to the size parameters of a specific bogie model. Utility Model Content

[0007] The purpose of this utility model is to provide an auxiliary tool for calibrating the machining holes of a high-speed train bogie frame, so as to solve the existing problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tool for calibrating machining holes in a bogie frame of a high-speed train, including a mounting base, a detection component on one side of the mounting base, clamping components on the top and bottom of the mounting base, and a measuring component on the detection component;

[0009] The detection assembly includes a rotating rod, an elliptical wheel, a guide rod, an L-shaped plate, a detection needle, and a spring A. The rotating rod is sleeved on one side of the mounting base, and an elliptical wheel is provided on one side of the rotating rod. Guide rods are provided at the top and bottom of the inner side of the mounting base. L-shaped plates are sleeved on the outer sides of the two sets of guide rods, and detection needles are provided on one side of the two sets of L-shaped plates. Spring A is sleeved on the outer sides of the two sets of guide rods.

[0010] Preferably, the clamping assembly includes a sleeve, an inner sleeve rod, a spring B, a clamping plate, rollers, and a triangular block. The sleeve is located at the top and bottom of the mounting base. The inner sleeve rod is sleeved on the inner side of the two sets of sleeves, and the spring B is sleeved on the outer side of the two sets of inner sleeve rods. A clamping plate is provided on the opposite side of the two sets of inner sleeve rods. Rollers are sleeved on the inner side of the two sets of clamping plates, and a triangular block is provided on one side of the two sets of clamping plates. This assembly can fix the device on the outer side of the EMU bogie frame and can push the device to slide along the outer side of the bogie.

[0011] Preferably, the measuring component includes a rotating wheel, a pointer, and a scale bar. The rotating wheel is located on one side of the rotating rod, and a pointer is provided at one end of the rotating rod. A scale bar that cooperates with the pointer is provided on one side of the mounting base. The inner diameter of the hole can be determined by observing the pointer pointing to the scale bar.

[0012] Preferably, one side of each of the two sets of triangular blocks is provided with a ball bearing, which can reduce the friction between the triangular block and the contact surface of the train bogie, and facilitate the device to slide along the outside of the bogie.

[0013] Preferably, the top and bottom of one side of the mounting base are provided with sliding grooves, and one side of the two sets of clamping plates is provided with sliders that cooperate with the sliding grooves to guide the clamping plates and improve the stability of the clamping plates.

[0014] Preferably, the two sets of clamping plates are provided with pull blocks on the opposite side to facilitate pulling the clamping plates apart so that the device can be removed from the outside of the EMU bogie.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the auxiliary tool for calibrating the machining holes of the EMU bogie frame;

[0016] 1. Through the cooperation between the detection components, sleeve, inner sleeve rod, spring B, clamping plate, roller, triangular block and measuring components, the device adopts a lightweight design and is small and portable. It can be flexibly transported to the work site without additional handling equipment. It can be directly fixed to the outside of the EMU bogie. With the help of the sliding mechanism adapted to the frame structure, after completing a set of hole position detection, there is no need to repeatedly disassemble and install. It can be quickly switched to the next detection station by simply sliding smoothly along the bogie, which greatly reduces the time spent on station conversion. The operation is convenient and efficient, and significantly improves the continuity and work efficiency of hole position calibration.

[0017] 2. Through the cooperation between the sleeve, inner sleeve rod, spring B, and clamping plate, the device can flexibly adapt to the installation requirements of bogies of different sizes and specifications by means of the elastic extension and retraction adjustment function of the clamping plate. Its elastic adjustment range can match the differences in the external dimensions of various EMU bogies, which greatly improves the adaptability and reusability of the device. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a front sectional view of the present invention;

[0020] Figure 3 This is a side sectional view of the present invention.

[0021] In the diagram: 1. Mounting base; 2. Detection assembly; 21. Rotating rod; 22. Elliptical wheel; 23. Guide rod; 24. L-shaped plate; 25. Detection needle; 26. Spring A; 3. Clamping assembly; 31. Sleeve; 32. Inner sleeve rod; 33. Spring B; 34. Clamping plate; 35. Roller; 36. Triangular block; 4. Measuring assembly; 41. Rotating wheel; 42. Pointer; 43. Scale bar. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 The present invention provides an embodiment of a tool for calibrating the machining holes of a high-speed train bogie frame, comprising a mounting base 1, a detection component 2 on one side of the mounting base 1, a clamping component 3 on the top and bottom of the mounting base 1, and a measuring component 4 on the detection component 2.

[0024] The detection assembly 2 includes a rotating rod 21, an elliptical wheel 22, a guide rod 23, an L-shaped plate 24, a detection needle 25, and a spring A26. The rotating rod 21 is sleeved on one side of the mounting base 1. An elliptical wheel 22 is provided on one side of the rotating rod 21. Guide rods 23 are provided at the top and bottom of the inner side of the mounting base 1. L-shaped plates 24 are sleeved on the outer sides of the two sets of guide rods 23. A detection needle 25 is provided on one side of the two sets of L-shaped plates 24. Spring A26 is sleeved on the outer sides of the two sets of guide rods 23.

[0025] The clamping assembly 3 includes a sleeve 31, an inner sleeve rod 32, a spring B33, a clamping plate 34, a roller 35, and a triangular block 36. The sleeve 31 is located at the top and bottom of the mounting base 1. The inner sleeve rod 32 is sleeved on the inner side of the two sets of sleeves 31, and the spring B33 is sleeved on the outer side of the two sets of inner sleeve rods 32. The clamping plate 34 is provided on the side of the two sets of inner sleeve rods 32 that is far apart. The top and bottom of one side of the mounting base 1 are provided with a sliding groove. The side of the two sets of clamping plates 34 is provided with a slider that cooperates with the sliding groove to guide the clamping plate 34 and improve the stability of the clamping plate 34. The side of the two sets of clamping plates 34 that is far apart is provided with a pull block to facilitate pulling the clamping plates 34 away from each other and removing the device from the outside of the EMU bogie.

[0026] Rollers 35 are fitted inside the two sets of clamping plates 34, and triangular blocks 36 are provided on one side of the two sets of clamping plates 34. Ball bearings are provided on one side of the two sets of triangular blocks 36. This can reduce the friction between the triangular blocks 36 and the contact surface of the EMU bogie, making it easier for the device to slide along the outside of the bogie. The clamping assembly 3 can fix the device on the outside of the EMU bogie frame and push the device to slide along the outside of the bogie.

[0027] The measuring component 4 includes a rotating wheel 41, a pointer 42, and a scale bar 43. The rotating wheel 41 is located on one side of the rotating rod 21. The pointer 42 is provided at one end of the rotating rod 21. The scale bar 43 that cooperates with the pointer 42 is provided on one side of the mounting base 1. The inner diameter of the hole can be known by observing the position of the pointer 42 pointing to the scale bar 43.

[0028] Working principle: After machining the holes in the bogie frame of the EMU, the device can be inserted into the outer side of the bogie frame. During installation, the inclined surface of the triangular block 36 is used as a guide. Pushing the device forward will cause the two sets of clamping plates 34 to overcome the elastic force of the spring B33 and move away from each other. After the bogie frame is inserted into the inner side of the two sets of clamping plates 34, the roller 35 can be clamped on the surface of the frame by the elastic force of the spring B33, thereby pushing the device to slide along the outer side of the frame. The device can be moved to the hole for inspection.

[0029] When inspecting the hole position, the device can be pushed forward slightly to insert the inspection needle 25 into the inspection hole position. Then, the rotating wheel 41 drives the rotating rod 21 to rotate. The rotating rod 21 drives the elliptical wheel 22 to rotate. The elliptical wheel 22 can then push the two sets of L-shaped plates 24 to overcome the elastic force of the spring A26 and move them away from each other. When the inspection needle 25 reaches the limit position, the inner diameter of the hole groove can be detected by observing the scale bar 43 pointed to by the pointer 42 on the rotating wheel 41, thereby determining whether the hole position is qualified.

[0030] For a set of test ports, pull the device outward to move the test needle 25 out of the hole, and it can move along the bogie sliding device. It can move to the next set of test ports for calibration without removing the device.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A kind of motor train unit bogie frame hole position calibration auxiliary tool, including mounting seat (1), it is characterized in that: A detection component (2) is provided on one side of the mounting base (1), a clamping component (3) is provided on the top and bottom of the mounting base (1), and a measuring component (4) is provided on the detection component (2). The detection assembly (2) includes a rotating rod (21), an elliptical wheel (22), a guide rod (23), an L-shaped plate (24), a detection needle (25), and a spring A (26). The rotating rod (21) is sleeved on one side of the mounting base (1). An elliptical wheel (22) is provided on one side of the rotating rod (21). Guide rods (23) are provided at the top and bottom of the inner side of the mounting base (1). L-shaped plates (24) are sleeved on the outer sides of the two sets of guide rods (23). A detection needle (25) is provided on one side of the two sets of L-shaped plates (24). Spring A (26) is sleeved on the outer sides of the two sets of guide rods (23).

2. The tool according to claim 1, wherein: The clamping assembly (3) includes a sleeve (31), an inner sleeve rod (32), a spring B (33), a clamping plate (34), a roller (35), and a triangular block (36). The sleeve (31) is located at the top and bottom of the mounting base (1). The inner sleeve rod (32) is sleeved on the inner side of the two sets of sleeves (31), and the spring B (33) is sleeved on the outer side of the two sets of inner sleeve rods (32). The clamping plate (34) is provided on the side of the two sets of inner sleeve rods (32) that is far apart from each other. The roller (35) is sleeved on the inner side of the two sets of clamping plates (34), and the triangular block (36) is provided on one side of the two sets of clamping plates (34).

3. The tool according to claim 1, wherein: The measuring component (4) includes a rotating wheel (41), a pointer (42) and a scale bar (43). The rotating wheel (41) is located on one side of the rotating rod (21). One end of the rotating rod (21) is provided with a pointer (42). One side of the mounting base (1) is provided with a scale bar (43) that cooperates with the pointer (42).

4. The bogie frame hole processing calibration auxiliary tool of a motor train unit according to claim 2, characterized in that: One side of each of the two sets of triangular blocks (36) is provided with a ball bearing.

5. The tool according to claim 2, wherein: The mounting base (1) has grooves on the top and bottom of one side, and the two sets of clamping plates (34) have sliders that cooperate with the grooves on one side.

6. The tool according to claim 2, wherein: Pull blocks are provided on the opposite side of the two sets of clamping plates (34).

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