Crankshaft detection device for collating machine

Abstract

The utility model relates to a kind of whole alignment machine crankshaft detection equipment, including base, percentage table moving guide rail and crankshaft moving guide rail being installed with being mutually parallel on the base;The percentage table moving guide rail is installed with the percentage table moving slider that can slide, the percentage table moving slider top is fixed with percentage table seat, percentage table is installed on the percentage table seat;The crankshaft moving guide rail is installed with crankshaft moving slider, from front to back in succession on the crankshaft moving slider, vice top pin mounting plate, shaft coupling mounting plate and positioning plate are installed, the vice top pin mounting plate is rotatably installed with the vice top pin.The utility model has the advantages that:the accuracy and efficiency of crankshaft detection can be effectively improved.Its automatic operation mode not only reduces human error, but also greatly improves the detection speed, so that whole alignment machine production enterprise can ensure product quality while achieving efficient production.

Description

Technical Field

[0001] This utility model relates to a crankshaft testing device for a complete set of machines, belonging to the field of testing. Background Technology

[0002] In the production of train sets, the crankshaft, as a core component, has a decisive impact on the performance and service life of the train set due to its machining accuracy. Currently, the industry commonly uses manual operation of digital calipers to measure the crankshaft after machining. This traditional method is not only inefficient, but also suffers from large inspection errors due to the instability of manual operation and the limitations of the measuring tools. It is difficult to accurately determine whether the crankshaft meets the design requirements, which seriously affects the overall quality and production efficiency of the train set.

[0003] With the rapid development of modern manufacturing, the demand for efficient and accurate testing technologies is becoming increasingly urgent. Existing manual testing methods can no longer meet the needs of large-scale production of complete sets of machines, especially in terms of accuracy and efficiency. Manual testing is not only time-consuming and labor-intensive, but also prone to inconsistencies in measurement results due to human factors, increasing production costs and quality risks. Therefore, developing an automated device capable of testing various crankshafts in complete sets of machines has become an inevitable trend in the industry. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a crankshaft testing device for a train assembly line. The technical solution of this utility model is as follows: A crankshaft inspection device for a lining machine includes a base (1), on which a dial indicator moving guide rail (4) and a crankshaft moving guide rail (2) are mounted in parallel arrangement. A slidable dial indicator sliding block (6) is mounted on the dial indicator moving guide rail (4), and a dial indicator base (5) is fixed to the top of the sliding block (6). A dial indicator (8) is mounted on the dial indicator base (5). A crankshaft moving block (11) is mounted on the crankshaft moving guide rail (2), and a secondary ejector plate (21), a coupling mounting plate (22), and a positioning plate (23) are sequentially mounted on the crankshaft moving block (11) from front to back. The auxiliary ejector pin (13) is rotatably mounted on the auxiliary ejector pin mounting plate (21). A coupling (12) and an encoder (15) are mounted on the coupling mounting plate. The auxiliary ejector pin (13) is connected to the encoder (15) through the coupling (12). A positioning plate limiting mechanism is mounted on the base (1). The positioning plate limiting mechanism is close to the limiting plate. A handwheel ejector pin support seat (24) is mounted on the base (1). The handwheel ejector pin (9) is rotatably mounted on the handwheel ejector pin support seat (24). The handwheel ejector pin is coaxially arranged with the auxiliary ejector pin (13). A handwheel is mounted at the tail of the handwheel ejector pin.

[0005] The positioning plate limiting mechanism includes a positioning bolt mounting plate (31) and a positioning bolt (32). The positioning bolt mounting plate is fixedly installed on the base (1) and spans the crankshaft moving guide rail (2). A positioning bolt (32) is installed on the positioning bolt mounting plate (31) in a horizontal direction. The positioning bolt (32) is dynamically engaged with the positioning plate (23) and is pressed against or away from the positioning plate (23).

[0006] A space for mounting the crankshaft is formed between the auxiliary pin and the handwheel pin. The sliding direction of the dial indicator slider (6) along the dial indicator sliding guide (4) is parallel to the axis of the crankshaft (14), and the probe of the dial indicator (8) points to the surface to be measured on the crankshaft (14).

[0007] The axial center lines of the handwheel pin (9) and the auxiliary pin (13) coincide, and the axial center line is parallel to the crankshaft moving guide rail (2).

[0008] The auxiliary pin (13) is rigidly connected to the encoder via a coupling (12), and the encoder detects the rotation angle of the crankshaft (14) in real time.

[0009] The dial indicator (8) is a mechanical or digital dial indicator, and its probe can be replaced to adapt to the detection requirements of different crankshaft profiles.

[0010] A foot is installed on the base (1). The advantages of this utility model are: This equipment effectively improves the accuracy and efficiency of crankshaft inspection. Its automated operation mode not only reduces human error but also significantly increases inspection speed, enabling engine rolling stock manufacturers to achieve high-efficiency production while ensuring product quality. Furthermore, the widespread application of this equipment will further promote technological advancements in the engine rolling stock manufacturing industry, providing strong support for enhancing the overall performance and market competitiveness of engine rolling stock. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0013] See Figure 1 This utility model relates to a crankshaft testing device for a train assembly line, comprising a base 1, on which a dial indicator moving guide rail 4 and a crankshaft moving guide rail 2 are mounted in parallel arrangement; a slidable dial indicator moving slider 6 is mounted on the dial indicator moving guide rail 4, and a dial indicator base 5 is fixed to the top of the dial indicator moving slider 6, on which a dial indicator 8 is mounted; a crankshaft moving slider 11 is mounted on the crankshaft moving guide rail 2, and a secondary ejector pin mounting plate 21, a coupling mounting plate 22, and a positioning plate 23 are sequentially mounted from front to back on the crankshaft moving slider 11. The auxiliary ejector pin 13 is rotatably mounted on the auxiliary ejector pin mounting plate 21. A coupling 12 and an encoder 15 are mounted on the coupling mounting plate. The auxiliary ejector pin 13 is connected to the encoder 15 through the coupling 12. A positioning plate limiting mechanism is mounted on the base 1, and the positioning plate limiting mechanism is close to the limiting plate. A handwheel ejector pin support 24 is mounted on the base 1. The handwheel ejector pin 9 is rotatably mounted on the handwheel ejector pin support 24. The handwheel ejector pin is coaxially arranged with the auxiliary ejector pin 13, and a handwheel is mounted at the tail of the handwheel ejector pin.

[0014] The dial indicator sliding guide 4 and crankshaft sliding guide 2, which are parallel to each other on the base 1, provide a precise movement trajectory for the dial indicator and crankshaft. The dial indicator sliding slider 6 can slide along the guide rail, ensuring that the dial indicator 8 can be flexibly adjusted in position and accurately aligned with the surface to be measured on the crankshaft, allowing for comprehensive measurement of the crankshaft's dimensional accuracy from different positions. The coaxial arrangement of the auxiliary ejector pin 13 and the handwheel ejector pin 9, as well as the axial centerline parallel to the crankshaft sliding guide 2, ensures that the crankshaft is subjected to uniform force after installation, reducing wobbling and improving the stability and accuracy of the test.

[0015] The auxiliary ejector pin 13 is rigidly connected to the encoder 15 via the coupling 12. The encoder can monitor the crankshaft rotation angle in real time, convert the crankshaft rotation information into an electrical signal and transmit it to the control panel. With the help of the dial indicator to measure the data, the encoder can accurately measure the dimensional accuracy of each rotation position of the crankshaft, which is convenient for analyzing the crankshaft shape deviation and providing accurate data for subsequent processing and adjustment.

[0016] The dial indicator 8 is available in mechanical or digital versions, with interchangeable probes. Mechanical dial indicators provide a clear visual display of measured values, while digital dial indicators offer more accurate readings and can be integrated with automation systems. By changing the probe, the measurement requirements for various parts of the crankshaft, connecting rod, and crank arm can be met for different crankshaft profiles, making the equipment adaptable to various crankshaft types.

[0017] The axial center lines of the handwheel ejector pin 9 and the auxiliary ejector pin 13 coincide, and this axial center line is parallel to the crankshaft moving guide rail 2; a space for installing the crankshaft is formed between the auxiliary ejector pin 13 and the handwheel ejector pin 9, making it convenient to place the crankshaft, while leaving enough room for the crankshaft to rotate. With the sliding dial indicator slider 6, the position of the dial indicator can be quickly adjusted according to different crankshaft specifications and testing requirements, improving the adaptability of the equipment to crankshafts of different sizes.

[0018] The handwheel is installed at the tail of the handwheel pin 9. The crankshaft can be rotated by manually turning the handwheel. No complicated power equipment is required. The operation is simple and intuitive, which makes it easy for the inspection personnel to accurately control the crankshaft rotation speed and angle, and easily realize the inspection of various positions of the crankshaft. It is especially suitable for small and medium batch production and inspection scenarios with high precision requirements.

[0019] The positioning plate limiting mechanism includes a positioning bolt mounting plate 31 and positioning bolts 32. The positioning bolt mounting plate is fixedly mounted on the base 1 and spans the crankshaft moving guide rail 2. Positioning bolts 32, arranged horizontally, are mounted on the positioning bolt mounting plate 31. These positioning bolts 32 are dynamically engaged with the positioning plate 23, pressing against or moving away from the positioning plate 23. The positioning plate limiting mechanism, composed of the positioning bolt mounting plate 31 and the positioning bolts 32, can press against or move away from the positioning plate 23, adjusting the movement range of the crankshaft moving slider 11 to ensure the crankshaft is measured in a suitable position while preventing excessive movement and ensuring measurement stability. This limiting mechanism facilitates quick adjustment according to crankshaft specifications and has a simple structure, making it easy to maintain and replace.

[0020] A space for mounting the crankshaft is formed between the auxiliary ejector pin and the handwheel ejector pin. The dial indicator sliding slider 6 is parallel to the axis of the crankshaft 14 along the sliding direction of the dial indicator sliding guide rail 4, and the probe of the dial indicator 8 points to the surface of the crankshaft 14 to be measured.

[0021] A dedicated crankshaft mounting space is created between the secondary ejector pin and the handwheel ejector pin, providing a stable and precise mounting position for the crankshaft. After the crankshaft is placed, the secondary ejector pin and the handwheel ejector pin can effectively constrain its axial direction from both sides, significantly reducing crankshaft wobble and offset during installation, thereby improving inspection accuracy. At the same time, the rational spatial layout also facilitates operators in quickly and accurately placing the crankshaft in position, improving inspection efficiency.

[0022] The dial indicator's sliding slider slides parallel to the crankshaft axis along the dial indicator's guide rail, allowing the dial indicator to move flexibly and be precisely positioned in the crankshaft's axial direction. During the inspection process, the dial indicator can be quickly adjusted to the corresponding point at different crankshaft positions to be measured, ensuring that the probe accurately points to the surface to be measured. This enables comprehensive and accurate measurement of all inspection points on the crankshaft, avoiding measurement errors caused by dial indicator position deviations.

[0023] This structural design is intuitive and easy to operate, requiring no complex procedures or specialized knowledge, allowing operators to quickly learn how to use it. When installing the crankshaft, simply place it in the space between the auxiliary center and the handwheel center, and tighten or loosen the handwheel at the end of the handwheel center to complete the installation and removal. During measurement, simply move the dial indicator's slider along the guide rail to the position to be measured to begin the measurement, significantly reducing the difficulty of using the equipment and the cost of personnel training.

[0024] The auxiliary ejector pin 13 is rigidly connected to the encoder via a coupling 12, and the encoder detects the rotation angle of the crankshaft 14 in real time.

[0025] The dial indicator 8 is a mechanical or digital dial indicator, and its probe can be replaced to adapt to the testing needs of different crankshaft profiles.

[0026] A foot pad is installed on the base 1. The base 1 not only serves as a supporting foundation for all components, but the foot pads also enhance the stability of the equipment, effectively reducing vibration and improving detection accuracy. The stable design of the base provides a reliable platform for the installation and operation of components such as dial indicators and crankshafts, extending the service life of the equipment.

[0027] The working principle of this utility model is as follows: (1) Preparation stage: The crankshaft to be tested is placed in the mounting space formed between the auxiliary ejector pin 13 and the handwheel ejector pin 9. By moving the crankshaft moving slider, the auxiliary ejector pin 13 and the handwheel ejector pin 9 press the crankshaft together. Then, the positioning plate 23 is tightened by the positioning bolt 32 in the positioning plate limiting mechanism, which limits the movement range of the crankshaft moving slider 11, ensuring that the crankshaft is fixed in a proper position, preventing excessive movement during the testing process, and ensuring measurement stability.

[0028] (2) Crankshaft Rotation and Angle Monitoring: The auxiliary ejector pin 13 is rigidly connected to the encoder 15 via the coupling 12. After the crankshaft is fixed, the handwheel at the tail of the handwheel ejector pin 9 is manually turned to rotate the crankshaft. The rotation of the crankshaft is transmitted to the encoder 15 through the auxiliary ejector pin 13 and the coupling 12. The encoder 15 monitors the rotation angle of the crankshaft in real time and converts the rotation angle information into an electrical signal, which is then transmitted to the control panel. The control panel can accurately record the rotation position of the crankshaft, providing a corresponding angle reference for subsequent dial indicator measurement data.

[0029] (3) Dial Indicator Measurement: The dial indicator sliding block 6 is mounted on the dial indicator sliding guide 4 and can slide along the guide. To measure the crankshaft position as required, push the dial indicator sliding block 6 so that the probe of the dial indicator 8 points to the surface to be measured on the crankshaft 14. The dial indicator sliding guide 4 and the crankshaft sliding guide 2 are parallel to each other, ensuring that the probe of the dial indicator 8 can accurately align with each testing point on the crankshaft along the crankshaft axis. The dial indicator 8 can be mechanical or digital, and its probe can be replaced according to the crankshaft profile to adapt to the measurement needs of different parts such as the crankshaft, connecting rod, and crank arm.

[0030] (4) Data Acquisition and Analysis: During crankshaft rotation, the probe of dial indicator 8 contacts the surface to be measured on the crankshaft. As the crankshaft rotates, the probe will displace according to the change in the contour of the crankshaft surface. Dial indicator 8 converts the displacement of the probe into measurement data. Mechanical dial indicators can directly read the measured values, while digital dial indicators can transmit the data to the control panel. The control panel, combined with the rotation angle information transmitted by encoder 15, can accurately analyze the dimensional accuracy of each rotation position of the crankshaft, thereby determining the shape deviation of the crankshaft. This data provides an accurate basis for subsequent crankshaft machining and adjustment.

[0031] (5) Completion of Inspection and Crankshaft Disassembly: After completing the measurement of all inspection positions on the crankshaft, loosen the positioning bolt 32 to relax the positioning plate limiting mechanism. Rotate the handwheel at the tail of the handwheel pin 9 to move the handwheel pin 9 and the auxiliary pin 13 away from the crankshaft simultaneously, thus loosening the crankshaft fixation. At this time, the crankshaft can be removed from the installation space between the auxiliary pin 13 and the handwheel pin 9, completing the crankshaft disassembly.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crankshaft testing device for a train assembly line, characterized in that, The system includes a base (1), on which a dial indicator moving guide rail (4) and a crankshaft moving guide rail (2) are mounted in parallel arrangement. A slidable dial indicator moving slider (6) is mounted on the dial indicator moving guide rail (4), and a dial indicator base (5) is fixed to the top of the dial indicator moving slider (6). A dial indicator (8) is mounted on the dial indicator base (5). A crankshaft moving slider (11) is mounted on the crankshaft moving guide rail (2), and a secondary ejector mounting plate (21), a coupling mounting plate (22), and a positioning plate (23) are mounted sequentially from front to back on the crankshaft moving slider (11). (21) The auxiliary ejector pin (13) is rotatably mounted on the base (1). A coupling (12) and an encoder (15) are mounted on the coupling mounting plate. The auxiliary ejector pin (13) is connected to the encoder (15) through the coupling (12). A positioning plate limiting mechanism is mounted on the base (1). The positioning plate limiting mechanism is close to the limiting plate. A handwheel ejector pin support seat (24) is mounted on the base (1). The handwheel ejector pin (9) is rotatably mounted on the handwheel ejector pin support seat (24). The handwheel ejector pin is coaxially arranged with the auxiliary ejector pin (13). A handwheel (16) is mounted at the tail of the handwheel ejector pin.

2. The crankshaft testing equipment for a train assembly line according to claim 1, characterized in that, The positioning plate limiting mechanism includes a positioning bolt mounting plate (31) and a positioning bolt (32). The positioning bolt mounting plate is fixedly installed on the base (1) and spans the crankshaft moving guide rail (2). A positioning bolt (32) is installed on the positioning bolt mounting plate (31) in a horizontal direction. The positioning bolt (32) is dynamically engaged with the positioning plate (23) and is pressed against or away from the positioning plate (23).

3. The crankshaft testing equipment for a train assembly line according to claim 1 or 2, characterized in that, A space for mounting the crankshaft is formed between the auxiliary pin and the handwheel pin. The sliding direction of the dial indicator slider (6) along the dial indicator sliding guide (4) is parallel to the axis of the crankshaft (14), and the probe of the dial indicator (8) points to the surface to be measured on the crankshaft (14).

4. The crankshaft testing equipment for a train assembly line according to claim 3, characterized in that, The axial center lines of the handwheel pin (9) and the auxiliary pin (13) coincide, and the axial center line is parallel to the crankshaft moving guide rail (2).

5. The crankshaft testing equipment for a train assembly line according to claim 1, characterized in that, The auxiliary pin (13) is rigidly connected to the encoder via a coupling (12), and the encoder detects the rotation angle of the crankshaft (14) in real time.

6. The crankshaft testing equipment for a train assembly line according to claim 5, characterized in that, The dial indicator (8) is a mechanical or digital dial indicator, and its probe can be replaced to adapt to the detection requirements of different crankshaft profiles.

7. The crankshaft testing equipment for a train assembly line according to claim 6, characterized in that, A foot is installed on the base (1).

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