An automatic measuring device for the parallelism of a box

Abstract

This invention relates to the field of parallelism detection technology and discloses an automatic parallelism measuring device for a box, including a base, a column fixedly connected to the upper end of the base, and a box placed on the upper end of the base in front of the column. A controller is fixedly connected to the left end of the column, and a lifting block is slidably connected to the front end of the column. It also includes: a measuring mechanism disposed at the lower end of the lifting block, used to detect the parallelism of the inner wall of the box; and a lifting drive mechanism disposed at the upper end of the column, used to drive the lifting block to move up and down. This invention, through the coordinated operation of the telescopic cylinder, multi-section telescopic rod, pressure sensor, and synchronization components in the measuring mechanism, can achieve high-precision measurement of the parallelism of the inner wall of the box. The measurement data can be transmitted to the controller in real time, enabling real-time monitoring and feedback of the measurement process, ensuring the accuracy and reliability of the measurement results, thereby significantly improving the accuracy and efficiency of box parallelism measurement.

Description

Technical Field

[0001] This invention relates to the field of parallelism detection technology, and in particular to an automatic measuring device for the parallelism of a box. Background Technology

[0002] In today's era of rapid technological advancement, precision instruments play a crucial role in numerous fields, including optical instruments, electronic devices, and medical equipment. These precision instruments are often equipped with high-precision optical, electronic, or mechanical components, placing extremely stringent requirements on the accuracy of the installation environment and supporting structure. The machining precision of the enclosure housing these precision instruments directly affects their performance and stability.

[0003] In the manufacturing process of precision instrument housings, the parallelism, perpendicularity, and dimensional accuracy of the internal structure are key factors that determine whether the instrument can be installed smoothly and operate stably. Parallelism, in particular, has a direct impact on the installation accuracy of components such as the optical platform and electronic component base. If the parallelism inside the housing fails to meet the standard, it may lead to inaccurate alignment of optical components, poor contact of electronic components, and unstable operation of mechanical parts, which will adversely affect the measurement accuracy and service life of the instrument. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic measuring device for the parallelism of a box, so as to solve the problems that may occur if the parallelism inside the box fails to meet the standard, such as inaccurate alignment of optical components, poor contact of electronic components, and unstable operation of mechanical parts.

[0005] The present invention provides an automatic measuring device for the parallelism of a box, comprising a base, a column fixedly connected to the upper end of the base, and a box placed on the upper end of the base in front of the column; a controller fixedly connected to the left end of the column; and a lifting block slidably connected to the front end of the column; further comprising:

[0006] A measuring mechanism is provided at the lower end of the lifting block, and the measuring mechanism is used to detect the parallelism of the inner wall of the box.

[0007] A lifting drive mechanism is provided at the upper end of the column and is used to drive the lifting block to move up and down.

[0008] A centering mechanism is disposed inside the base. The centering mechanism is used to drive the housing to be located in the exact center of the base and to position the housing directly below the measuring mechanism.

[0009] Preferably, the measuring mechanism includes a rotating block and a mounting block. The rotating block is rotatably connected inside the lifting block, and the mounting block is fixedly connected to the lower end of the rotating block. A connecting pipe is fixedly connected to the upper end of the rotating block, and the upper end of the connecting pipe extends through to and is rotatably connected to the upper end of the lifting block. An oil passage is provided inside the rotating block, and the connecting pipe and the mounting block are connected through the oil passage. The measuring mechanism also includes a first telescopic component, a second telescopic component, a synchronization component, a measuring component, an angle adjustment drive component, and a telescopic drive component.

[0010] Preferably, the first telescopic assembly includes multiple telescopic rods and a stop block. The multiple telescopic rods are provided in pairs and are slidably connected inside the mounting block. A measuring component is fixedly connected to the end of each telescopic rod. The stop block is fixedly connected inside the mounting block. A first spring is fixedly connected inside each telescopic rod. The end of the first spring near the axis of the mounting block is fixedly connected to the stop block.

[0011] Preferably, the second telescopic component includes a sleeve and a telescopic cylinder. The sleeve is fixedly connected to the lower end of the mounting block, and the telescopic cylinder is slidably connected inside the sleeve. An oil hole is provided inside the mounting block, and the interior of the mounting block communicates with the interior of the sleeve through the oil hole. A second spring is fixedly connected inside the telescopic cylinder, and the upper end of the second spring is fixedly connected to the lower end of the mounting block. The elastic force of the second spring is less than that of the first spring. A measuring component is rotatably connected to the lower end of the telescopic cylinder.

[0012] Preferably, the measuring component includes a third spring and a pressure sensor. The end of the multi-section telescopic rod away from the mounting block is fixedly connected to a fixing block. The lower end of the telescopic cylinder is also rotatably connected to a fixing block. Three sets of mounting seats are fixedly connected at equal intervals to the side walls of the multiple fixing blocks. The third spring is fixedly connected inside the mounting seat. The pressure sensor is slidably connected inside the mounting seat. The upper end of the pressure sensor is fixedly connected to the lower end of the third spring. The multiple pressure sensors are all electrically connected to the controller via wires.

[0013] Preferably, the synchronization component includes a first gear and a rack. A positioning shaft is fixedly connected inside the mounting block. The first gear is rotatably connected to the side wall of the positioning shaft. A pair of racks are provided and are respectively fixedly connected inside the multi-section telescopic rods on the front and rear sides of the mounting block. The first gear and the rack mesh with each other. Limiting holes are opened on the front end faces of the two abutments. Limiting blocks are fixedly connected inside the limiting holes. A pair of racks respectively pass through the corresponding limiting holes. Limiting grooves are opened on both the left and right end faces of the racks. The limiting blocks are located inside the limiting grooves and are slidably connected to them.

[0014] Preferably, the angle adjustment drive assembly includes a first motor and a second gear. The first motor is fixedly connected to the upper end of the lifting block, the second gear is fixedly connected to the output shaft end of the first motor, the second gear meshes with a third gear, and the third gear is fixedly connected to the side wall of the connecting pipe. The first motor is electrically connected to the controller via a wire.

[0015] Preferably, the telescopic drive assembly includes a cylinder and an electric telescopic rod. The cylinder is fixedly connected to the right end of the lifting block, and a piston is slidably connected inside the cylinder. The electric telescopic rod is fixedly connected to the lower side inside the cylinder, and the output shaft end of the electric telescopic rod is fixedly connected to the lower end of the piston. An oil pipe is fixedly connected to the upper end of the cylinder, and the free end of the oil pipe is rotatably connected to a connecting pipe. The electric telescopic rod is electrically connected to the controller via an electric wire.

[0016] Preferably, the lifting drive mechanism includes a second motor and a threaded rod. The second motor is fixedly connected to the upper end of the column. A pair of threaded rods are provided, and both are rotatably connected to the front end of the column. The lower end of the threaded rod passes through the lifting block and is threadedly connected to it. The upper end of the threaded rod and the output shaft end of the second motor are both fixedly connected to a sprocket. The multiple sprockets are connected to each other through chain drive. The second motor is electrically connected to the controller through a wire.

[0017] Preferably, the centering mechanism includes a support block and connecting rods. The support block is slidably connected inside the base. Four connecting rods are provided and rotatably connected to the side wall of the support block via bearing seats. A first connecting rod is rotatably connected to the end of the connecting rod away from the support block. A second connecting rod is fixedly connected to the end of the first connecting rod away from the connecting rod. Pushing blocks are fixedly connected to the upper ends of both sides of the second connecting rod. The upper end of the pushing block extends through to the top of the base. The pushing block located above the base abuts against the side wall of the housing. The first connecting rod and the second connecting rod are both located inside the base and slidably connected thereto. A fourth spring is fixedly connected to the end of the second connecting rod away from the first connecting rod. The end of the fourth spring away from the second connecting rod is fixedly connected to the inside of the base.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the coordinated operation of the telescopic cylinder, multi-section telescopic rod, pressure sensor, and synchronization components in the measuring mechanism, can achieve high-precision measurement of the parallelism of the inner wall of the box. The measurement data can be transmitted to the controller in real time, enabling real-time monitoring and feedback of the measurement process, ensuring the accuracy and reliability of the measurement results, thereby significantly improving the accuracy and efficiency of box parallelism measurement.

[0020] 2. This invention, through its centering mechanism, automatically adjusts the housing to the exact center of the base, ensuring the housing is directly below the measuring mechanism. This not only improves the stability of the housing placement but also ensures the accurate relative position between the measuring mechanism and the housing, thereby guaranteeing the accuracy of the measurement results. Furthermore, the automatic centering function reduces errors and time spent on manual operation, improving the automation level and efficiency of the measurement process.

[0021] 3. This invention enables flexible adjustment of the measuring mechanism in multiple dimensions through the angle adjustment drive component and the telescopic drive component; the angle adjustment drive component can adjust the measuring angle of the measuring mechanism, thereby realizing the conversion between measuring the left and right inner walls and the front and rear inner walls of the box; the telescopic drive component can automatically drive the pressure sensor according to the distance between the inner wall of the box and the pressure sensor, further improving the flexibility and adaptability of the measurement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall main structure of the present invention;

[0023] Figure 2 This is a top view schematic diagram of the lifting drive mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the left-side cross-sectional planar structure of the measuring mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of a partial left-side cross-sectional view of the measuring mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the measuring component of the present invention;

[0027] Figure 6 This is a schematic diagram of the rear cross-sectional planar structure of the measuring mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the bottom cross-sectional structure of the base of the present invention.

[0029] Numbering on the map:

[0030] 1. Base; 2. Column; 21. Controller; 3. Lifting block; 4. Measuring mechanism; 41. Rotating block; 411. Oil passage; 42. Mounting block; 421. Oil hole; 43. Connecting pipe; 44. First telescopic assembly; 441. Multi-section telescopic rod; 442. First spring; 443. Abutment block; 4431. Limiting block; 45. Second telescopic assembly; 451. Sleeve; 452. Telescopic cylinder; 453. Second spring; 46. Synchronization assembly; 461. Positioning shaft; 462. First gear; 463. Rack; 4631. Limiting groove; 47. Measuring assembly; 471. Fixed... 472. Fixed block; 473. Mounting base; 474. Pressure sensor; 475. Third spring; 48. Angle adjustment drive assembly; 481. First motor; 482. Second gear; 483. Third gear; 49. Telescopic drive assembly; 491. Cylinder; 492. Piston; 493. Electric telescopic rod; 494. Oil pipe; 5. Lifting drive mechanism; 51. Second motor; 52. Threaded rod; 53. Sprocket; 54. Chain; 6. Centering mechanism; 61. Bearing block; 62. Connecting rod; 63. First connecting rod; 64. Second connecting rod; 65. Push block; 66. Fourth spring. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. In this specification, "a plurality of" refers to two or more.

[0033] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0034] Reference Figures 1-7As shown, this embodiment of the invention provides an automatic box parallelism measuring device, including a base 1, a column 2 fixedly connected to the upper end of the base 1, and a box placed on the upper end of the base 1 in front of the column 2. A controller 21 is fixedly connected to the left end of the column 2, and a lifting block 3 is slidably connected to the front end of the column 2; it also includes:

[0035] Measuring mechanism 4 is located at the lower end of lifting block 3 and is used to detect the parallelism of the inner wall of the box.

[0036] The lifting drive mechanism 5 is located on the upper end of the column 2 and is used to drive the lifting block 3 to move up and down.

[0037] The centering mechanism 6 is located inside the base 1. It drives the housing to be positioned in the exact center of the base 1, ensuring the housing is directly below the measuring mechanism 4. During operation, the housing to be tested is first placed on the base 1. The weight of the housing acts on the centering mechanism 6, activating it to automatically adjust the housing to the exact center of the base 1, ensuring the housing is directly below the measuring mechanism 4. Subsequently, the lifting drive mechanism 5 is activated, driving the lifting block 3 to move up and down along the column 2, moving the measuring mechanism 4 to the appropriate height of the housing. The measuring mechanism 4 then detects the inner wall of the housing, and the detected data is transmitted to the controller 21 in real time. The controller 21 calculates the parallelism of the inner wall of the housing based on the data fed back by the measuring mechanism 4 and displays the measurement results on the screen.

[0038] In a further embodiment, refer to Figures 2-6 The measuring mechanism 4 includes a rotating block 41 and a mounting block 42. The rotating block 41 is rotatably connected inside the lifting block 3. The mounting block 42 is fixedly connected to the lower end of the rotating block 41. A connecting pipe 43 is fixedly connected to the upper end of the rotating block 41. The upper end of the connecting pipe 43 extends through to the upper end of the lifting block 3 and is rotatably connected thereto. An oil passage 411 is provided inside the rotating block 41. The connecting pipe 43 and the mounting block 42 are connected through the oil passage 411. The measuring mechanism 4 also includes a first telescopic component 44, a second telescopic component 45, a synchronization component 46, a measuring component 47, an angle adjustment drive component 48, and a telescopic drive component 49.

[0039] In this embodiment, by activating the angle adjustment drive assembly 48, the rotating block 41 and the mounting block 42 installed below it can adjust the measuring angle, so that the first telescopic assembly 44 is perpendicular to the front and rear side walls inside the box. Subsequently, the telescopic drive assembly 49 is activated, and hydraulic oil is delivered to the inside of the mounting block 42, thereby pushing the first telescopic assembly 44 and the second telescopic assembly 45 to extend outward, ensuring that the measuring assembly 47 can smoothly and accurately contact the lower end face and the front and rear end faces inside the box for measurement. The measured data is used by the controller 21 to calculate the parallelism of the inner wall of the box, and the measurement results are displayed on the screen. After the lower end face and the front and rear end faces inside the box are measured, the telescopic drive assembly 49 and the angle adjustment assembly drive the first telescopic assembly 44 to move, and make the first telescopic assembly 44 perpendicular to the left and right side walls inside the box, thereby facilitating the measurement of the parallelism of the left and right side walls inside the box. The synchronization assembly 46 ensures the synchronous extension and retraction of the multiple telescopic rods 441, thereby ensuring the stability and accuracy of the measurement. The entire measurement process has a high degree of automation and high measurement accuracy, which can effectively improve the efficiency and reliability of box parallelism detection.

[0040] In a further embodiment, refer to Figures 2-4 The first telescopic assembly 44 includes a multi-section telescopic rod 441 and a stop block 443. A pair of telescopic rods 441 are slidably connected inside the mounting block 42. A measuring component 47 is fixedly connected to the end of each telescopic rod 441. The stop block 443 is fixedly connected inside the mounting block 42. A first spring 442 is fixedly connected inside each telescopic rod 441. One end of the first spring 442 near the axis of the mounting block 42 is fixedly connected to the stop block 443. The second telescopic assembly 45 includes a sleeve 451 and a telescopic cylinder 4. 52. The sleeve 451 is fixedly connected to the lower end of the mounting block 42. The telescopic cylinder 452 is slidably connected inside the sleeve 451. An oil hole 421 is opened inside the mounting block 42. The inside of the mounting block 42 and the inside of the sleeve 451 are connected through the oil hole 421. A second spring 453 is fixedly connected inside the telescopic cylinder 452. The upper end of the second spring 453 is fixedly connected to the lower end of the mounting block 42. The elastic force of the second spring 453 is less than the elastic force of the first spring 442. A measuring component 47 is rotatably connected to the lower end of the telescopic cylinder 452.

[0041] In this embodiment, when the measuring mechanism 4 is activated, the telescopic drive assembly 49 injects hydraulic oil into the sleeve 451 through the oil hole 421 via the hydraulic system, pushing the telescopic cylinder 452 to slide outward within the sleeve 451. Since the elastic force of the second spring 453 is less than that of the first spring 442, the telescopic cylinder 452 extends outward before the multi-section telescopic rod 441, causing the measuring assembly 47 to initially contact the lower end face of the box. As the hydraulic oil continues to be injected, the multi-section telescopic rod 441 extends outward, at which point the first spring 442 is stretched, making the measuring assembly 47 fit more tightly against the front and rear end faces of the box. At this time, the measuring assembly 47 starts to work, detecting the contact pressure with the inner wall of the box in real time and transmitting the data to the controller 21. The controller 21 calculates the parallelism of the inner wall of the box based on this data and displays the measurement results on the display screen. This not only improves the accuracy and stability of the measurement, but also ensures that the measuring assembly 47 can make stable and accurate contact with the inner wall of the box through the phased telescopic mechanism, effectively avoiding the risk of damaging the box or the measuring assembly 47 due to excessive contact force.

[0042] In a further embodiment, refer to Figures 4-5 The measuring component 47 includes a third spring 474 and a pressure sensor 473. The end of the multi-section telescopic rod 441 away from the mounting block 42 is fixedly connected to the fixing block 471. The lower end of the telescopic cylinder 452 is also rotatably connected to the fixing block 471. Three sets of mounting seats 472 are fixedly connected at equal intervals to the side walls of the multiple fixing blocks 471. The third spring 474 is fixedly connected inside the mounting seat 472. The pressure sensor 473 is slidably connected inside the mounting seat 472. The upper end of the pressure sensor 473 is fixedly connected to the lower end of the third spring 474. The multiple pressure sensors 473 are all electrically connected to the controller 21 through wires.

[0043] In this embodiment, the pressure sensor 473 in the measuring component 47 below the telescopic cylinder 452 touches the lower end face of the box interior. The parallelism of the lower end face of the box interior is determined by a three-point measurement method. After the measurement is completed, the telescopic cylinder 452 continues to move downward, so that the fixing block 471 is in close contact with the lower end face of the box interior. At this time, the pressure sensor 473 moves into the mounting base 472. Subsequently, the multi-section telescopic rod 441 begins to extend outward, so that the pressure sensor 473 contacts the inner wall of the box interior, thereby measuring the parallelism of the front and rear end faces of the box interior. After the measurement is completed, the multi-section telescopic rod 441 retracts inward. When changing the measurement direction of the multi-section telescopic rod 441, since the fixing block 471 and the telescopic cylinder 452 are rotatably connected, the fixing block 471 always maintains contact with the lower end face of the box interior, ensuring the stability and accuracy of the measurement. Throughout the measurement process, the pressure sensor 473 transmits the measured contact force data to the controller 21 in real time through wires. The controller 21 calculates the parallelism of the inner wall of the box interior based on these data, thereby achieving high-precision measurement.

[0044] In a further embodiment, refer to Figures 3-4 The synchronization component 46 includes a first gear 462 and a rack 463. A positioning shaft 461 is fixedly connected inside the mounting block 42. The first gear 462 is rotatably connected to the side wall of the positioning shaft 461. A pair of racks 463 are provided and are respectively fixedly connected inside the multi-section telescopic rods 441 on the front and rear sides of the mounting block 42. The first gear 462 and the rack 463 mesh with each other. Limiting holes are opened on the front end faces of the two abutments 443. Limiting blocks 4431 are fixedly connected inside the limiting holes. A pair of racks 463 pass through the corresponding limiting holes. Limiting grooves 4631 are opened on both the left and right end faces of the racks 463. The limiting blocks 4431 are located inside the limiting grooves 4631 and are slidably connected to them.

[0045] In this embodiment, when the first telescopic assembly 44 is activated, the multi-section telescopic rod 441 in the first telescopic assembly 44 extends outward under the push of hydraulic oil. Since the rack 463 is fixedly connected inside the multi-section telescopic rod 441 and meshes with the first gear 462, the telescopic movement of the multi-section telescopic rod 441 will drive the rack 463 to move, thereby driving the first gear 462 to rotate on the positioning shaft 461. This process ensures that the multi-section telescopic rod 441 on the front and rear sides of the mounting block 42 can telescopically extend and retract synchronously, thereby ensuring that the measuring assembly 47 moves smoothly and evenly on the inner wall of the box. At the same time, the limiting block 4431 is slidably connected in the limiting groove 4631, further limiting the direction of movement of the rack 463 and preventing it from deviating during the telescopic process, thus ensuring the accuracy and stability of the measurement. Through this design of the synchronous assembly 46, the present invention can effectively avoid measurement errors caused by inconsistent telescopic rod extension and retraction, and improve the accuracy and reliability of the measurement.

[0046] In a further embodiment, refer to Figures 2-3 The angle adjustment drive assembly 48 includes a first motor 481 and a second gear 482. The first motor 481 is fixedly connected to the upper end of the lifting block 3, and the second gear 482 is fixedly connected to the output shaft end of the first motor 481. The second gear 482 meshes with a third gear 483, and the third gear 483 is fixedly connected to the side wall of the connecting pipe 43. The first motor 481 is electrically connected to the controller 21 through a wire.

[0047] In this embodiment, when the angle of the measuring mechanism 4 needs to be adjusted, the controller 21 sends a command to the first motor 481 via a wire. After the first motor 481 starts, the second gear 482 at its output shaft rotates accordingly. Since the second gear 482 and the third gear 483 mesh with each other, the third gear 483 rotates synchronously under the drive of the second gear 482. The third gear 483 is fixedly connected to the side wall of the connecting pipe 43. Therefore, the connecting pipe 43 and its lower end rotating block 41 and mounting block 42 will rotate around the positioning shaft 461, thereby realizing the adjustment of the angle of the measuring mechanism 4. This process enables the measuring component 47 to accurately align with the areas to be measured on the left and right sides inside the housing, ensuring the accuracy and reliability of the measurement. Through the automated design of the angle adjustment drive component 48, the present invention can flexibly adapt to various complex measurement scenarios, improving measurement efficiency and accuracy.

[0048] In a further embodiment, refer to Figure 6 The telescopic drive assembly 49 includes a cylinder 491 and an electric telescopic rod 493. The cylinder 491 is fixedly connected to the right end of the lifting block 3. A piston 492 is slidably connected inside the cylinder 491. The electric telescopic rod 493 is fixedly connected to the lower side inside the cylinder 491. The output shaft end of the electric telescopic rod 493 is fixedly connected to the lower end of the piston 492. An oil pipe 494 is fixedly connected to the upper end of the cylinder 491. The free end of the oil pipe 494 is rotatably connected to the connecting pipe 43. The electric telescopic rod 493 is electrically connected to the controller 21 through a wire.

[0049] In this embodiment, when measurement is required, the controller 21 sends a command to the electric telescopic rod 493 via a wire. The electric telescopic rod 493 starts and pushes the piston 492 to move upward within the cylinder 491. The movement of the piston 492 forces the hydraulic oil in the cylinder 491 into the connecting pipe 43 through the oil pipe 494, thereby pushing the telescopic component in the measuring mechanism 4 to extend outward. When the measuring component 47 contacts the inner wall of the housing, the pressure sensor 473 starts working and transmits the data to the controller 21. The controller 21 adjusts the telescopic action of the electric telescopic rod 493 according to the feedback data to ensure that the measuring component 47 maintains appropriate contact force with the inner wall of the housing. This not only achieves precise telescopic control of the measuring component 47, but also provides stable power output through the hydraulic system, ensuring the smoothness and accuracy of the measurement process.

[0050] In a further embodiment, refer to Figure 2The lifting drive mechanism 5 includes a second motor 51 and a threaded rod 52. The second motor 51 is fixedly connected to the upper end of the column 2. A pair of threaded rods 52 are provided and are rotatably connected to the front end of the column 2. The lower end of the threaded rod 52 passes through the lifting block 3 and is threadedly connected to it. The upper end of the threaded rod 52 and the output shaft end of the second motor 51 are both fixedly connected to a sprocket 53. The multiple sprockets 53 are connected to each other through a chain 54. The second motor 51 is electrically connected to the controller 21 through a wire.

[0051] In this embodiment, when the height of the measuring mechanism 4 needs to be adjusted, the controller 21 sends a command to the second motor 51 via a wire. After the second motor 51 starts, the sprocket 53 at the output shaft end rotates accordingly. The chain 54 drives the sprocket 53 on the other side to rotate synchronously. Since the sprocket 53 is fixedly connected to the upper end of the threaded rod 52, the threaded rod 52 rotates accordingly. The lower end of the threaded rod 52 passes through the lifting block 3 and is threadedly connected to it. Therefore, the rotation of the threaded rod 52 will drive the lifting block 3 to move up and down along the column 2. Through the drive of the second motor 51 and the transmission of the sprocket 53 and the chain 54, the precise lifting control of the lifting block 3 is realized, ensuring that the measuring mechanism 4 can be accurately positioned to the required height, thereby improving the flexibility and adaptability of the measurement.

[0052] In a further embodiment, refer to Figure 7 The central mechanism 6 includes a bearing block 61 and connecting rods 62. The bearing block 61 is slidably connected inside the base 1. Four connecting rods 62 are provided and are rotatably connected to the side wall of the bearing block 61 through bearing seats. The end of the connecting rod 62 away from the bearing block 61 is rotatably connected to a first connecting rod 63. The end of the first connecting rod 63 away from the connecting rod 62 is fixedly connected to a second connecting rod 64. Pushing blocks 65 are fixedly connected to the upper ends of both sides of the second connecting rod 64. The upper end of the pushing block 65 extends through to the top of the base 1. The pushing block 65 located above the base 1 abuts against the side wall of the housing. The first connecting rod 63 and the second connecting rod 64 are both located inside the base 1 and are slidably connected to it. The end of the second connecting rod 64 away from the first connecting rod 63 is fixedly connected to a fourth spring 66. The end of the fourth spring 66 away from the second connecting rod 64 is fixedly connected to the inside of the base 1.

[0053] In this embodiment, when the box needs to be placed in the center, the box is first placed on the base 1. At this time, the pusher block 61 abuts against the side wall of the box. The weight of the box causes the pusher block 61 to move the box downward. The downward movement of the pusher block causes the connecting rod 62 to move. The movement of the connecting rod 62 will cause the first connecting rod 63 and the second connecting rod 64 to move towards the center of the base 1. At this time, the fourth spring 66 is stretched, thereby pushing the pusher block 65 towards the center of the base 1, so that the box gradually moves towards the center position of the base 1. When the box moves to the appropriate position, the pusher block 65 is kept in contact with the side wall of the box, so that the box is stably placed in the center on the base 1. After the parallelism measurement of the inner wall of the box is completed, the box is driven off the base 1. Through the tension of the fourth spring 66, the first connecting rod 63, the second connecting rod 64, the connecting rod 62 and the pusher block 61 can be moved to the initial position, which is convenient for the centering of the next box.

[0054] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. An automatic measuring device for the parallelism of a box, comprising a base (1), characterized in that, The base (1) is fixedly connected to a column (2) at its upper end, and a box is placed on the upper end of the base (1) in front of the column (2). A controller (21) is fixedly connected to the left end of the column (2), and a lifting block (3) is slidably connected to the front end of the column (2); it also includes: Measuring mechanism (4), the measuring mechanism (4) is set at the lower end of the lifting block (3), the measuring mechanism (4) includes a rotating block (41), a mounting block (42), a connecting pipe (43), a first telescopic component (44), a second telescopic component (45), a synchronization component (46), a measuring component (47), an angle adjustment drive component (48) and a telescopic drive component (49), the measuring mechanism (4) is used to detect the parallelism of the inner wall of the box; the rotating block (41) is rotatably connected to the inside of the lifting block (3), the mounting block (42) is fixedly connected to the lower end of the rotating block (41), the upper end of the rotating block (41) is fixedly connected to the connecting pipe (43), the upper end of the connecting pipe (43) passes through to the upper end of the lifting block (3) and is rotatably connected to it, the rotating block (41) has an oil passage (411) inside, the connecting pipe (43) and the mounting block (42) are connected through the oil passage (411); The lifting drive mechanism (5) is located on the upper end of the column (2) and is used to drive the lifting block (3) to move up and down. The centering mechanism (6) is located inside the base (1). The centering mechanism (6) is used to drive the box to be located in the center of the base (1) and to make the box located directly below the measuring mechanism (4). The first telescopic component (44) includes a multi-section telescopic rod (441) and a stop block (443). The multi-section telescopic rod (441) is provided with a first spring (442). The second telescopic component (45) includes a sleeve (451) and a telescopic cylinder (452). The telescopic cylinder (452) is provided with a second spring (453). The elastic force of the second spring (453) is less than that of the first spring (442) so as to achieve phased flexible contact of the measuring component (47). The multi-section telescopic rod (441) is provided in pairs and is slidably connected inside the mounting block (42). A measuring component (47) is fixedly connected to the end of the multi-section telescopic rod (441). The abutment (443) is fixedly connected inside the mounting block (42). A first spring (442) is fixedly connected inside the multi-section telescopic rod (441). The end of the first spring (442) near the axis of the mounting block (42) is fixedly connected to the abutment (443). The sleeve (451) is fixedly connected to the lower end of the mounting block (42), and the telescopic cylinder (452) is slidably connected inside the sleeve (451). An oil hole (421) is provided inside the mounting block (42), and the interior of the mounting block (42) is connected to the interior of the sleeve (451) through the oil hole (421). A second spring (453) is fixedly connected inside the telescopic cylinder (452), and the upper end of the second spring (453) is fixedly connected to the lower end of the mounting block (42). A measuring component (47) is rotatably connected to the lower end of the telescopic cylinder (452). The synchronization component (46) includes a first gear (462) and a rack (463) to ensure the synchronous extension and retraction of the multi-section telescopic rod (441); a positioning shaft (461) is fixedly connected inside the mounting block (42), the first gear (462) is rotatably connected to the side wall of the positioning shaft (461), a pair of racks (463) are provided and fixedly connected inside the multi-section telescopic rod (441) on the front and rear sides of the mounting block (42), the first gear (462) and the rack (463) mesh with each other, the front end face of the two abutments (443) is provided with a limiting hole, the limiting hole is fixedly connected to a limiting block (4431), a pair of racks (463) respectively pass through the corresponding limiting hole, the left and right end faces of the rack (463) are provided with a limiting groove (4631), the limiting block (4431) is located inside the limiting groove (4631) and is slidably connected to it; The measuring component (47) includes a pressure sensor (473) and a third spring (474) for real-time feedback of measurement data to the controller (21). The angle adjustment drive assembly (48) includes a first motor (481) and a second gear (482) for adjusting the measuring angle of the measuring mechanism (4); The telescopic drive assembly (49) includes a cylinder (491), a piston (492), an electric telescopic rod (493), and an oil pipe (494) for driving the telescopic movement of the measuring assembly (47).

2. The automatic box parallelism measuring device according to claim 1, characterized in that, The end of the multi-section telescopic rod (441) away from the mounting block (42) is fixedly connected to a fixing block (471). The lower end of the telescopic cylinder (452) is also rotatably connected to a fixing block (471). Three sets of mounting seats (472) are fixedly connected at equal intervals on the side walls of the multiple fixing blocks (471). The third spring (474) is fixedly connected inside the mounting seat (472). The pressure sensor (473) is slidably connected inside the mounting seat (472). The upper end of the pressure sensor (473) is fixedly connected to the lower end of the third spring (474). The multiple pressure sensors (473) are all electrically connected to the controller (21) through wires.

3. The automatic box parallelism measuring device according to claim 1, characterized in that, The first motor (481) is fixedly connected to the upper end of the lifting block (3), the second gear (482) is fixedly connected to the output shaft end of the first motor (481), the second gear (482) meshes with the third gear (483), the third gear (483) is fixedly connected to the side wall of the connecting pipe (43), and the first motor (481) is electrically connected to the controller (21) through wires.

4. The automatic box parallelism measuring device according to claim 1, characterized in that, The cylinder (491) is fixedly connected to the right end of the lifting block (3). A piston (492) is slidably connected inside the cylinder (491). The electric telescopic rod (493) is fixedly connected to the lower side inside the cylinder (491). The output shaft end of the electric telescopic rod (493) is fixedly connected to the lower end of the piston (492). An oil pipe (494) is fixedly connected to the upper end of the cylinder (491). The free end of the oil pipe (494) is rotatably connected to the connecting pipe (43). The electric telescopic rod (493) is electrically connected to the controller (21) through a wire.

5. The automatic measuring device for box parallelism according to claim 1, characterized in that, The lifting drive mechanism (5) includes a second motor (51) and a threaded rod (52). The second motor (51) is fixedly connected to the upper end of the column (2). There is a pair of threaded rods (52), which are rotatably connected to the front end of the column (2). The lower end of the threaded rod (52) passes through the lifting block (3) and is threadedly connected to it. The upper end of the threaded rod (52) and the output shaft end of the second motor (51) are both fixedly connected to a sprocket (53). The multiple sprockets (53) are connected to each other by a chain (54). The second motor (51) is electrically connected to the controller (21) by a wire.

6. The automatic measuring device for the parallelism of a box body according to claim 1, characterized in that, The centering mechanism (6) includes a support block (61) and connecting rods (62). The support block (61) is slidably connected inside the base (1). Four connecting rods (62) are provided and are rotatably connected to the side wall of the support block (61) through bearing seats. A first connecting rod (63) is rotatably connected to the end of the connecting rod (62) away from the support block (61). A second connecting rod (64) is fixedly connected to the end of the first connecting rod (63) away from the connecting rod (62). The upper ends of the two sides of the second connecting rod (64) are fixed. A push block (65) is connected, the upper end of which extends through to the top of the base (1). The push block (65) located above the base (1) abuts against the side wall of the box. The first connecting rod (63) and the second connecting rod (64) are both located inside the base (1) and are slidably connected thereto. A fourth spring (66) is fixedly connected to the end of the second connecting rod (64) away from the first connecting rod (63). The end of the fourth spring (66) away from the second connecting rod (64) is fixedly connected to the inside of the base (1).

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