Engineering equipment calibration tool convenient to disassemble and assemble

Abstract

The utility model discloses an engineering equipment calibration tool convenient to disassemble and assemble, and relates to the technical field of engineering equipment. The engineering equipment calibration tool convenient to disassemble and assemble comprises a frame body, a movable frame is arranged on the frame body, a limiting groove is formed in the movable frame, a sensor is arranged on the movable frame, the sensor is located in the limiting groove, one end of the movable frame is in threaded connection with a threaded rod, the threaded rod extends into the movable frame, and a limiting mechanism is arranged between the movable frame and the sensor. Through the limiting mechanism, the sensor is limited and fixed, the tool can adapt to limitation of different sensors with the same size and model, the universality and flexibility of the tool are improved, workers can conveniently and rapidly install and disassemble the tool, and the influence on calibration efficiency is reduced.

Description

Technical Field

[0001] This application relates to the field of engineering equipment technology, and in particular to calibration fixtures for engineering equipment that are easy to assemble and disassemble. Background Technology

[0002] Engineering equipment encompasses a wide range of machinery used in engineering construction, civil engineering, mining, material handling, and other fields. Calibration fixtures for engineering machinery are specially designed tools used to install and calibrate sensors or other critical components on engineering machinery such as excavators, loaders, and bulldozers.

[0003] When performing attitude detection on an excavator, it is necessary to calibrate the positions of sensors such as the mushroom head, IMU, LiDAR, and integrated navigation system to facilitate the detection of the excavator's attitude. The calibration fixture makes it easy to fix the sensors in the designated positions, which facilitates the high-precision operation of the excavator.

[0004] Existing calibration fixtures are bolted to the excavator during use. Various sensors, such as mushroom head sensors, IMUs, lidar, and integrated navigation sensors, are individually fixed to the fixture using tools or screws. This facilitates excavator testing. However, when installing sensors, the fixture is not convenient for adjusting and restricting installation according to the sensor model and size. Furthermore, disassembling the sensors using tools or by loosening bolts is inconvenient when testing them, which can easily affect the calibration efficiency of the fixture and hinder excavator testing. Utility Model Content

[0005] The purpose of this application is to address the problem that existing calibration fixtures, when used, are fixed to excavators with bolts. Various sensors, such as mushroom-shaped sensors, IMUs, LiDARs, and integrated navigation systems, are individually fixed to the fixture using tools or screws for easy excavator testing. However, when installing sensors, the fixture is difficult to adjust according to the sensor model and size, and disassembly using tools or loosening bolts is inconvenient, which can easily affect the calibration efficiency of the fixture and hinder excavator testing. This application provides a calibration fixture for engineering equipment that is easy to assemble and disassemble.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A calibration fixture for engineering equipment that is easy to assemble and disassemble includes a frame, a movable frame on the frame, a limiting groove on the movable frame, a sensor on the movable frame, the sensor being located in the limiting groove, a screw threaded to one end of the movable frame, the screw extending into the movable frame, and a limiting mechanism between the movable frame and the sensor.

[0008] By adopting the above technical solution and using a limiting mechanism to restrict and fix the sensor, it is easy to adapt to the limitations of sensors of different sizes and models, improve the versatility and flexibility of the tooling, facilitate quick installation and disassembly by workers, and reduce the impact on calibration efficiency.

[0009] Furthermore, the limiting mechanism includes a limiting block rotatably connected to the end of the screw, the limiting block corresponding to the sensor, a handle fixed to one end of the screw, a limiting rod slidably disposed at the end of the movable frame away from the screw, the limiting rod being fixedly connected to the limiting block, and a limiting component disposed between the limiting block and the movable frame.

[0010] By adopting the above technical solution, turning the handle drives the screw to rotate, and the rotation of the screw causes the limiting block to move in the limiting groove, causing the limiting rod to slide on the moving frame, thereby limiting the limiting block and making the limiting block close to the sensor, which is suitable for sensors of different sizes.

[0011] Furthermore, the limiting component includes a limiting post slidably disposed within the limiting block and the movable frame, limiting holes are provided on both sides of the sensor, the limiting post extends out of the limiting block and the movable frame and extends into the limiting holes, and a limiting element is provided between the limiting post and the movable frame.

[0012] By adopting the above technical solution, the limiting post enters the limiting hole to restrict the sensor, thus limiting the sensor.

[0013] Furthermore, the limiting component includes a spring fixed to the end of the limiting post, the end of the spring away from the limiting post being fixedly connected to the movable frame and the limiting block, a movable post fixed to one end of the limiting post, the movable post extending out of the limiting block and the movable frame, and the movable post slidingly disposed with the limiting block and the movable frame.

[0014] By adopting the above technical solution, the elastic force of the spring abuts against the limiting post, which facilitates the restriction of the sensor and the disassembly of the sensor.

[0015] Furthermore, a positioning post is fixed at the lower end of the sensor, and a positioning hole corresponding to the positioning post is opened on the movable frame, with the positioning post located inside the positioning hole.

[0016] By adopting the above technical solution, the positioning column enters the positioning hole to position the sensor, improving calibration accuracy and facilitating installation.

[0017] Furthermore, both sides of the lower end of the sensor are arc-shaped, and one end of the limiting post is arc-shaped.

[0018] By adopting the above technical solution, the arc-shaped end abuts against the arc-shaped end of the limiting post, causing the limiting post to move and the spring to extend and retract, which facilitates the rapid limitation and fixation of the sensor.

[0019] Furthermore, a sliding block is fixed at the lower end of the movable frame. The sliding block is trapezoidal, and a fixing groove is provided on the frame body. The sliding block is located in the fixing groove and is adapted to it.

[0020] By adopting the above technical solution, the sliding block moves within the fixed groove to adjust the position of the sensor on the frame.

[0021] Furthermore, a contact post is threadedly connected to one side of the frame. The contact post extends into the frame and slides through the sliding block. The frame has fixed holes arranged in an array. The contact post is located in the fixed hole. One end of the contact post extends out of the frame and is fixed with a handle.

[0022] By adopting the above technical solution, turning the second handle allows the abutment post to enter the fixing hole, restricting the sliding block and facilitating adjustment.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. When using the calibration fixture, the operator turns handle one according to the size of the sensor. The rotation of handle one drives the screw to rotate, causing the limiting block to move within the limiting groove. This causes the limiting rod to slide on the moving frame, restricting the limiting block and bringing it close to the sensor. This aligns the limiting hole at the lower end of the sensor with the limiting post, allowing the limiting post to enter the limiting hole. Then, the spring force presses against the limiting post, restricting the sensor. When disassembly is required, the moving post is pulled. The moving post moves, causing the spring to extend and retract, moving the limiting post out of the limiting hole and releasing the restriction on the sensor, facilitating disassembly. This limiting mechanism restricts and fixes the sensor, making it suitable for different sizes and models of sensors. This improves the versatility and flexibility of the fixture, allowing for quick installation and disassembly by the operator and reducing the impact on calibration efficiency.

[0025] 2. When using the calibration fixture, place the sensor on the moving frame so that the positioning pin enters the positioning hole to position the sensor, improving calibration accuracy and facilitating installation. During installation, ensure that the arc-shaped end of the sensor abuts against the arc-shaped end of the limiting pin, causing the limiting pin to move and the spring to extend and retract, facilitating quick and easy fixation of the sensor. When the sensor position needs to be adjusted, turn handle two. The rotation of handle two causes the abutting pin to rotate and move within the frame. The abutting pin moves out of the fixing hole, releasing the restriction on the sliding block, making it easier to push the sliding block to move within the fixing slot and adjust the sensor's position on the frame to adapt to different calibration requirements. When the sliding block moves to the nearest fixing hole, turn handle two to allow the abutting pin to enter the fixing hole, restricting the sliding block for easy adjustment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the tooling specified in this application.

[0027] Figure 2 This is a schematic diagram of the internal structure of the tooling specified in this application.

[0028] Figure 3 It is in this application Figure 2 Enlarged structural diagram at point A in the middle.

[0029] Figure 4 This is a schematic diagram of the internal second structure of the tooling specified in this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Frame; 2. Movable frame; 3. Sensor; 4. Limiting groove; 5. Screw; 6. Limiting block; 7. Limiting rod; 8. Limiting post; 9. Limiting hole; 10. Spring; 11. Movable post; 12. Positioning post; 13. Positioning hole; 14. Handle one; 15. Fixing groove; 16. Fixing hole; 17. Sliding block; 18. Abutting post; 19. Handle two. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses calibration fixtures for engineering equipment that are easy to assemble and disassemble.

[0034] Reference Figure 1 A calibration fixture for engineering equipment that is easy to assemble and disassemble includes a frame 1, a movable frame 2 on the frame 1, a limiting groove 4 on the movable frame 2, a sensor 3 on the movable frame 2, the sensor 3 being located in the limiting groove 4, a screw 5 threadedly connected to one end of the movable frame 2, the screw 5 extending into the movable frame 2, and a limiting mechanism between the movable frame 2 and the sensor 3.

[0035] When using the calibration fixture, the operator fixes the frame 1 to the designated position on the excavator with bolts. The sensor 3 is restricted and fixed by the limiting mechanism, which is convenient to adapt to the limitations of different sizes and models of sensors 3, improves the versatility and flexibility of the fixture, facilitates quick installation and disassembly by the operator, reduces the impact on calibration efficiency, and facilitates subsequent attitude detection of the excavator after completion.

[0036] Reference Figure 2 and Figure 3The limiting mechanism includes a limiting block 6 rotatably connected to the end of the screw 5, corresponding to the sensor 3. A handle 14 is fixed to one end of the screw 5. A limiting rod 7 is slidably disposed at the end of the movable frame 2 away from the screw 5, and the limiting rod 7 is fixedly connected to the limiting block 6. A limiting component is disposed between the limiting block 6 and the movable frame 2. The limiting component includes a limiting post 8 slidably disposed within the limiting block 6 and the movable frame 2. Limiting holes 9 are opened on both sides of the sensor 3. The limiting post 8 extends out of the limiting block 6 and the movable frame 2 and into the limiting holes 9. A limiting element is disposed between the limiting post 8 and the movable frame 2. The limiting element includes a spring 10 fixed to the end of the limiting post 8. The ends of the spring 10 away from the limiting post 8 are fixedly connected to the movable frame 2 and the limiting block 6. A movable post 11 is fixed to one end of the limiting post 8. The movable post 11 extends out of the limiting block 6 and the movable frame 2 and is slidably disposed with the limiting block 6 and the movable frame 2.

[0037] When using the calibration fixture, the operator turns handle 14 according to the size of sensor 3. The rotation of handle 14 drives screw 5 to rotate, causing limiting block 6 to move within limiting groove 4. This causes limiting rod 7 to slide on moving frame 2, restricting limiting block 6 and bringing it close to sensor 3. This aligns limiting hole 9 at the lower end of sensor 3 with limiting post 8, allowing limiting post 8 to enter limiting hole 9. Then, the elastic force of spring 10 abuts against limiting post 8, restricting sensor 3. When disassembly is required, moving post 11 is pulled, causing spring 10 to extend and retract, moving limiting post 8 out of limiting hole 9 and releasing the restriction on sensor 3 for easy disassembly. The limiting mechanism restricts and fixes sensor 3, facilitating the restriction of different sizes and models of sensor 3, improving the versatility and flexibility of the fixture, and enabling quick installation and disassembly by operators, thus reducing the impact on calibration efficiency.

[0038] Reference Figures 2-4 The sensor 3 has a positioning post 12 fixed at its lower end. The moving frame 2 has a positioning hole 13 corresponding to the positioning post 12, and the positioning post 12 is located in the positioning hole 13. Both sides of the lower end of the sensor 3 are arc-shaped, and one end of the limiting post 8 is arc-shaped. The moving frame 2 has a sliding block 17 fixed at its lower end. The sliding block 17 is trapezoidal, and the frame body 1 has a fixing groove 15. The sliding block 17 is located in the fixing groove 15 and is adapted to it. A contact post 18 is threaded to one side of the frame body 1. The contact post 18 extends into the frame body 1 and slides through the sliding block 17. The frame body 1 has fixing holes 16 arranged in an array. The contact post 18 is located in the fixing holes 16. One end of the contact post 18 extends out of the frame body 1 and is fixed with a handle 19.

[0039] When using the calibration fixture, place the sensor 3 on the moving frame 2 so that the positioning post 12 enters the positioning hole 13 to position the sensor 3, improving calibration accuracy and facilitating installation. During installation, make the arc-shaped end of the sensor 3 abut against the arc-shaped end of the limiting post 8, causing the limiting post 8 to move and the spring 10 to extend and retract, facilitating quick fixation of the sensor 3. When it is necessary to adjust the position of the sensor 3, turn the handle 19. The handle 19 rotates, causing the abutment post 18 to rotate and move within the frame 1. The abutment post 18 moves out of the fixing hole 16, releasing the restriction on the sliding block 17, making it easier to push the sliding block 17 to move within the fixing groove 15, adjusting the position of the sensor 3 on the frame 1 to adapt to different calibration requirements. When the sliding block 17 moves to the nearest fixing hole 16, turn the handle 19 so that the abutment post 18 enters the fixing hole 16, restricting the sliding block 17 for easy adjustment.

[0040] The implementation principle of the calibration fixture for engineering equipment that is easy to assemble and disassemble in this embodiment is as follows: When using the calibration fixture, the operator fixes the frame 1 to the designated position of the excavator with bolts. According to the size of the sensor 3, the operator turns the handle 14. The rotation of the handle 14 drives the screw 5 to rotate. The rotation of the screw 5 causes the limiting block 6 to move in the limiting groove 4, and the limiting rod 7 to slide on the moving frame 2 to restrict the limiting block 6. The limiting block 6 is brought close to the sensor 3, so that the limiting hole 9 at the lower end of the sensor 3 corresponds to the limiting post 8. The limiting post 8 enters the limiting hole 9. Then, the elastic force of the spring 10 abuts against the limiting post 8. The limiting post 8 enters the limiting hole 9 to restrict the sensor 3. When disassembly is required, the moving post 11 is pulled. The moving post 11 moves, causing the spring 10 to extend and retract. The limiting post 8 moves out of the limiting hole 9, releasing the restriction on the sensor 3.

[0041] When using the calibration fixture, place the sensor 3 on the moving frame 2 so that the positioning post 12 enters the positioning hole 13 to position the sensor 3, improve the calibration accuracy, and facilitate installation. During installation, make the arc-shaped end of the sensor 3 abut against the arc-shaped end of the limiting post 8 so that the limiting post 8 moves and the spring 10 extends and retracts, which facilitates the quick fixation of the sensor 3.

[0042] When the position of sensor 3 needs to be adjusted, turn handle 19. The rotation of handle 19 causes the abutment post 18 to rotate and move within the frame 1. The abutment post 18 moves out of the fixing hole 16, releasing the restriction on the sliding block 17, making it easier to push the sliding block 17 to move within the fixing groove 15. Adjust the position of sensor 3 on the frame 1 to adapt to different calibration requirements. When the sliding block 17 moves to the nearest fixing hole 16, turn handle 19 so that the abutment post 18 enters the fixing hole 16, restricting the sliding block 17.

Claims

1. A standard tooling for engineering equipment that is easy to assemble and disassemble, comprising a frame (1), characterized in that: A movable frame (2) is provided on the frame (1). A limiting groove (4) is provided on the movable frame (2). A sensor (3) is provided on the movable frame (2). The sensor (3) is located in the limiting groove (4). A screw (5) is threaded to one end of the movable frame (2). The screw (5) extends into the movable frame (2). A limiting mechanism is provided between the movable frame (2) and the sensor (3).

2. The calibration tool for the engineering equipment according to claim 1, wherein: The limiting mechanism includes a limiting block (6) rotatably connected to the end of the screw (5), the limiting block (6) corresponding to the sensor (3), a handle (14) fixed at one end of the screw (5), a limiting rod (7) slidably provided at the end of the moving frame (2) away from the screw (5), the limiting rod (7) being fixedly connected to the limiting block (6), and a limiting component being provided between the limiting block (6) and the moving frame (2).

3. The calibration tool for the engineering equipment according to claim 2, wherein: The limiting component includes a limiting post (8) that is slidably disposed within the limiting block (6) and the moving frame (2). The sensor (3) has limiting holes (9) on both sides. The limiting post (8) extends out of the limiting block (6) and the moving frame (2) and extends into the limiting hole (9). A limiting element is provided between the limiting post (8) and the moving frame (2).

4. The demountable calibration fixture for construction equipment of claim 3, wherein: The limiting component includes a spring (10) fixed to the end of the limiting post (8). The end of the spring (10) away from the limiting post (8) is fixedly connected to the movable frame (2) and the limiting block (6). A movable post (11) is fixed to one end of the limiting post (8). The movable post (11) extends out of the limiting block (6) and the movable frame (2). The movable post (11) is slidably arranged with the limiting block (6) and the movable frame (2).

5. The demountable calibration fixture for construction equipment of claim 1, wherein: The sensor (3) has a positioning post (12) fixed at its lower end. The moving frame (2) has a positioning hole (13) corresponding to the positioning post (12). The positioning post (12) is located in the positioning hole (13).

6. The demountable calibration fixture for construction equipment of claim 4, wherein: The sensor (3) has arc-shaped lower ends on both sides, and the limiting post (8) has an arc-shaped end.

7. The demountable calibration fixture for construction equipment of claim 1, wherein: The lower end of the mobile frame (2) is fixed with a sliding block (17), which is trapezoidal. The frame (1) is provided with a fixing groove (15), and the sliding block (17) is located in the fixing groove (15) and is compatible with it.

8. The demountable calibration fixture for construction equipment of claim 7, wherein: The frame (1) is threaded with a contact post (18) on one side. The contact post (18) extends into the frame (1) and slides through the sliding block (17). The frame (1) has fixed holes (16) arranged in an array. The contact post (18) is located in the fixed hole (16). One end of the contact post (18) extends out of the frame (1) and is fixed with a handle (19).

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