Cross beam module, calibration equipment and calibration system

Abstract

The embodiment of the utility model relates to the technical field of vehicle calibration, and discloses a cross beam module, a calibration device and a calibration system, the cross beam module comprises a cross beam, a sliding piece and a driving mechanism, and the cross beam is provided with a rack along the length direction; the sliding piece is slidably mounted on the cross beam; the driving mechanism is mounted on the sliding piece; the driving mechanism comprises a driving part and an output gear in transmission connection with the driving part, and the output gear is meshed with the rack; the driving piece can drive the output gear to perform meshing movement relative to the rack so that the sliding piece can slide along the cross beam. In the embodiment, the driving piece is used for providing power for rotation of the output gear, the driving piece drives the output gear to rotate relative to the rack, and the rotary motion of the gear is converted into linear motion in the rack direction, so that the sliding piece is driven to move in the length direction of the cross beam; automatic adjustment of the sliding part and the position of the calibration element on the sliding part is achieved, adjustment efficiency and adjustment precision are guaranteed, and manual adjustment errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle calibration technical field, in particular to a kind of beam module, calibration equipment and calibration system. BACKGROUND

[0002] With the development of automobile industry and the progress of science and technology, people have higher requirements on the safety and comfort of automobile driving. As an important direction of current automobile technology development, the pre-stage of unmanned driving, advanced driver assistance system (referred to as ADAS system), has become one of the key technologies to improve vehicle safety. As more and more attention is paid to the safety of the car, more and more vehicles are equipped with ADAS system. However, when the ADAS system fails or abnormity, the ADAS system needs to be calibrated again to ensure its normal and safe use.

[0003] In related technologies, ADAS calibration equipment is usually used to calibrate and adjust ADAS system. The ADAS calibration equipment includes a beam and a hanging plate slidingly arranged on the beam. The hanging plate is used to mount calibration elements. The sensors on the vehicle can be calibrated or calibrated by the calibration elements.

[0004] However, during the calibration process, the position of the hanging plate on the beam usually needs to be adjusted manually by the staff. The manual adjustment has defects such as long adjustment time and large adjustment error, which affects the calibration efficiency and accuracy. UTILITY MODEL CONTENT

[0005] The utility model embodiment aims to provide a kind of beam module, calibration equipment and calibration system, to solve the technical problem that the hanging plate on the beam needs to be adjusted manually in prior art, there is long adjustment time and large adjustment error.

[0006] The utility model embodiment adopts the following technical solutions to solve its technical problems: a kind of beam module is provided, comprising:

[0007] The beam is provided with a rack along its length direction;

[0008] The sliding member is slidably installed on the beam;

[0009] The driving mechanism is installed on the sliding member, and the driving mechanism includes a driving member and an output gear in transmission connection with the driving member, and the output gear is engaged with the rack;

[0010] The driving member can drive the output gear to engage with the rack to move, so that the sliding member can slide along the beam.

[0011] In some embodiments, the driving mechanism further comprises a driving gear and a gear reduction set, the driving gear is arranged on the output shaft of the driving member, the gear reduction set is arranged between the driving gear and the output gear, the driving member drives the driving gear to rotate, and in turn drives the gear reduction set and the output gear to rotate.

[0012] In some embodiments, the gear reduction set comprises a first gear and a second gear arranged coaxially, a third gear and a fourth gear arranged coaxially, and a fifth gear arranged coaxially with the output gear, the first gear is engaged with the driving gear, the second gear is engaged with the third gear, and the fourth gear is engaged with the fifth gear.

[0013] In some embodiments, the driving mechanism further comprises an encoder and an encoder gear connected thereto, the encoder gear is engaged with the gear reduction set.

[0014] In some embodiments, the encoder gear is engaged with the fifth gear.

[0015] In some embodiments, the sliding member comprises a sliding plate and a back plate, the back plate is arranged on the side of the sliding plate facing the crossbeam, the sliding plate and the back plate form a receiving cavity, and the driving gear and the gear reduction set are installed in the receiving cavity.

[0016] In some embodiments, the driving mechanism further comprises a locking member, the locking member is rotatably installed in the receiving cavity, and the locking member is provided with an engaging portion.

[0017] When the crossbeam is in the unfolded state, the engaging portion is separated from the gear reduction set and the driving gear.

[0018] When the crossbeam is in the folded state, the locking member rotates relative to the sliding member under the action of its own gravity, so that the engaging portion is engaged with the gear reduction set or the driving gear.

[0019] In some embodiments, when the crossbeam is in the folded state, the engaging portion can be engaged with the driving gear.

[0020] In some embodiments, the sliding member is provided with an unlocking hole for extending an unlocking tool into the receiving cavity, and the unlocking hole corresponds to the position of the locking member.

[0021] In some embodiments, the side of the crossbeam facing the sliding member is provided with a mounting groove and a receiving groove in communication, the rack is mounted in the mounting groove, and the output gear is located in the receiving groove and engaged with the rack.

[0022] In some embodiments, the bottom of the cross beam is provided with a guide rail, and a sliding block is connected to the sliding member and is slidingly installed on the guide rail.

[0023] The utility model embodiment solves its technical problem still adopts following technical scheme: provide a kind of calibration equipment, the calibration equipment includes the cross beam module as described in any of the above embodiments;And

[0024] Base;

[0025] Stand, the stand is vertically arranged on the base, and the cross beam module is installed on the stand.

[0026] The utility model embodiment solves its technical problem still adopts following technical scheme: provide a kind of calibration system, the calibration system includes the calibration equipment described in the above embodiment;And

[0027] Diagnosis instrument, the diagnosis instrument is connected with the calibration equipment.

[0028] Compared with prior art, the utility model embodiment provides a kind of cross beam module, calibration equipment and calibration system, rotate relative to rack by driving member and take output gear, convert the rotary motion of gear into linear motion along the direction of rack, to drive sliding member along the length direction of cross beam, can realize the accurate automation adjustment of calibration element position on sliding member, guarantee adjustment efficiency and adjustment accuracy, reduce artificial adjustment error. BRIEF DESCRIPTION OF DRAWINGS

[0029] One or more embodiments are exemplified by the pictures in the drawings corresponding thereto, which do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limit.

[0030] Figure 1 It is the three-dimensional structure schematic view of calibration equipment in the utility model embodiment when being in working condition (cross beam is in unfolded state);

[0031] Figure 2 It is the three-dimensional structure schematic view of calibration equipment in the utility model embodiment when being in storage condition (cross beam is in folded state);

[0032] Figure 3 It is the three-dimensional structure schematic view of cross beam module in the utility model embodiment;

[0033] Figure 4 It is the three-dimensional structure schematic view of rack, driving mechanism and sliding member in the utility model embodiment;

[0034] Figure 5is a schematic diagram of transmission relationship of the driving member, the reduction gear set, the output gear, the driving gear and the rack in the embodiment of the utility model;

[0035] Figure 6 is another schematic diagram of transmission relationship of the driving member, the reduction gear set, the output gear, the driving gear and the rack in the embodiment of the utility model;

[0036] Figure 7 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0037] Figure 8 is another schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0038] Figure 9 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0039] Figure 10 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0040] Figure 11 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0041] Figure 12 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state;

[0042] Figure 13 is a schematic diagram of the internal structure of the sliding member when the cross beam is in the unfolded state.

[0043] Explanation of reference signs:

[0044] 100, calibration device; 10, base; 20, stand; 30, cross beam module; 31, cross beam; 311, first cross beam; 312, second cross beam; 313, mounting groove; 314, accommodating groove; 315, guide rail; 316, limiting groove; 32, sliding member; 320, sliding plate; 3200, accommodating cavity; 321, back plate; 3211, first shaft hole; 3212, second shaft hole; 3213, communication groove; 3215, bottom wall; 3216, side wall; 3217, unlocking hole; 323, rotating shaft; 324, sliding block; 325, extension plate; 326, limiting plate; 33, driving mechanism; 330, driving member; 331, output gear; 332, driving gear; 333, reduction gear set; 3331, first gear; 3332, second gear; 3333, third gear; 3334, fourth gear; 3335, fifth gear; 334, encoder; 335, encoder gear; 336, locking member; 3360, meshing part; 34, rack; 200, unlocking tool. DETAILED DESCRIPTION

[0045] In order to make the technical personnel in the technical field better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0046] The terms "first", "second", and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0047] In this document, referring to "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] The following will be described in combination with Figures 1 to 13 The beam module 30, the calibration device 100 and the calibration system provided by the embodiments of the present application will be described in detail.

[0049] Please refer to Figure 1 and Figure 2 , Figure 1 is a perspective view of the calibration device 100 in a working state (the beam is in an unfolded state), Figure 2 is a perspective view of the calibration device 100 in a storage state (the beam is in a folded state).

[0050] The embodiments of the present application provide a calibration device 100, which can calibrate and calibrate the ADAS system. The calibration device 100 comprises a base 10, a stand 20 and a beam module 30, the stand 20 is vertically arranged on the base 10, and the beam module 30 is installed on the stand 20.

[0051] The base 10 is usually made of high-strength material, such as cast iron or steel, to provide stable and reliable support for the entire calibration device 100. Optionally, the bottom of the base 10 is provided with wheels to facilitate the movement of the calibration device 100.

[0052] The column 20 can be in the form of a rod or a column, and can be made of high-strength aluminum alloy or steel to ensure sufficient strength and rigidity. The bottom end of the column 20 is connected vertically to the base 10. Optionally, the bottom end of the column 20 can be detachably installed on the base 10 by clamping, screwing, or the like, to facilitate disassembly and assembly of the column 20.

[0053] The crossbeam module 30 can be made of lightweight and high-strength material, such as aluminum alloy profile, to reduce its own weight while ensuring sufficient rigidity. The crossbeam module 30 can be slidably installed on the column 20 to facilitate adjustment of the installation height of the crossbeam module 30 on the column 20.

[0054] Optionally, the crossbeam module 30 has an unfolded state and a folded state. When the crossbeam module 30 is unfolded in a straight line, the length of the entire crossbeam module 30 can be maximally extended to facilitate calibration work using the crossbeam module 30. When the calibration device 100 needs to be stored, the crossbeam module 30 can be folded to reduce the overall volume of the calibration device 100 and improve the portability and flexibility of the calibration device 100.

[0055] Please refer to Figures 3 to 5 , Figure 3 for a perspective view of the crossbeam module 30, Figure 4 for a perspective view of the rack 34, the driving mechanism 33, and the sliding member 32, Figure 5 for a transmission relationship diagram of the driving member 330, the reduction gear set 333, the output gear 331, the driving gear 332, and the rack 34.

[0056] In some embodiments, the crossbeam module 30 includes a crossbeam 31, a sliding member 32, and a driving mechanism 33. The crossbeam 31 is provided with a rack 34 along its length direction. The sliding member 32 is slidably installed on the crossbeam 31. The driving mechanism 33 is installed on the sliding member 32. The driving mechanism 33 includes a driving member 330 and an output gear 331 in transmission connection with the driving member 330. The output gear 331 is in meshing engagement with the rack 34. The driving member 330 can drive the output gear 331 to move relative to the rack 34, so that the sliding member 32 can slide along the crossbeam 31.

[0057] The cross beam 31 can be a hollow tubular structure. The rack 34 is arranged along the length direction of the cross beam 31 and located on the side of the cross beam 31 close to the sliding member 32, so as to be engaged with the output gear 331. Alternatively, the rack 34 can be fixedly installed on the cross beam 31 by screwing, clamping, bonding or the like.

[0058] The sliding member 32 is slidably installed on the cross beam 31, and is used to mount calibration targets, mirrors, lasers and other calibration elements for calibrating the vehicle auxiliary driving system. The calibration targets, mirrors, lasers and other calibration elements can be installed on the side surface of the sliding member 32 away from the cross beam 31.

[0059] The driving mechanism 33 is installed on the sliding member 32, and includes a driving member 330 and an output gear 331. The driving member 330 is fixedly installed on the side of the sliding member 32 close to the cross beam 31, and the output gear 331 is in transmission cooperation with the driving member 330 and engaged with the rack 34. The driving member 330 is used to provide power for the rotation of the output gear 331, and the driving member 330 drives the output gear 331 to rotate relative to the rack 34. The rotational motion of the gear is converted into linear motion along the direction of the rack 34, thereby driving the sliding member 32 to move along the length direction of the cross beam 31, realizing automatic adjustment of the position of the calibration elements on the sliding member 32, ensuring the adjustment efficiency and accuracy, and reducing the manual adjustment error.

[0060] In some embodiments, as shown in Figure 3 The cross beam 31 includes a first cross beam 311 (left cross beam) and a second cross beam 312 (right cross beam) arranged foldably. When the calibration device 100 is in a working state, the first cross beam 311 and the second cross beam 312 are unfolded horizontally and collinearly, so that the length of the entire cross beam 31 can be maximally extended, facilitating the calibration operation by using the cross beam module 30. When it is necessary to store the calibration device 100, the first cross beam 311 and the second cross beam 312 are folded into a vertical state, so as to reduce the overall volume of the calibration device 100 and improve the portability and flexibility of the calibration device 100.

[0061] The first cross beam 311 and the second cross beam 312 are respectively provided with the rack 34, the sliding member 32 and the corresponding driving mechanism 33. The driving mechanism 33 on the first cross beam 311 can drive the sliding member 32 on the first cross beam 311 to slide along the first cross beam 311, and the driving mechanism 33 on the second cross beam 312 can drive the sliding member 32 on the second cross beam 312 to slide along the second cross beam 312.

[0062] In some embodiments, the output gear 331 can be directly installed on the output shaft of the driving member 330, and the driving member 330 can directly drive the output gear 331 to rotate.

[0063] AsFigure 4 and Figure 5 As shown in FIG. 3, in some embodiments, the driving mechanism 33 further comprises a driving gear 332 and a gear reduction set 333, the driving gear 332 is arranged on the output shaft of the driving member 330, and the gear reduction set 333 is arranged between the driving gear 332 and the output gear 331. The driving member 330 drives the driving gear 332 to rotate, and in turn drives the gear reduction set 333 and the output gear 331 to rotate.

[0064] The driving member 330 can be a driving motor, which is fixedly installed on the sliding member 32 through a motor mounting seat, and the gear reduction is arranged on the output shaft of the driving member 330. The gear reduction set 333 is usually composed of a plurality of gears meshing with each other, and is arranged between the driving gear 332 and the output gear 331. After the driving member 330 transmits power to the driving gear 332, the driving gear 332 transmits power to the output gear 331 through the gear reduction set 333, thereby driving the output gear 331 to rotate. In this process, the gear reduction set 333 can reduce the high rotating speed of the driving member 330, and at the same time, according to the torque amplification principle of gear transmission, the output gear 331 can obtain smaller rotating speed and larger torque.

[0065] On the one hand, the smaller rotating speed of the output gear 331 makes the moving speed of the sliding member 32 slower. When adjusting the position of the calibration element, the slower moving speed is beneficial to improve the positioning accuracy. For example, when accurately calibrating the vehicle ADAS system, it is necessary to accurately move the calibration target and other elements to a specific position. The presence of the gear reduction set 333 can make the adjustment process more delicate, and can more accurately stop the sliding member 32 at the target position, reducing the positioning overshoot phenomenon caused by excessive speed, thereby ensuring the accuracy of calibration. On the other hand, the larger torque can ensure that the sliding member 32 can smoothly slide along the cross beam 31, avoiding the phenomenon that the sliding member 32 cannot slide due to insufficient power.

[0066] In some embodiments, the gear reduction set 333 comprises a first gear 3331 and a second gear 3332 arranged coaxially, a third gear 3333 and a fourth gear 3334 arranged coaxially, and a fifth gear 3335 arranged coaxially with the output gear 331. The first gear 3331 is meshed with the driving gear 332, the second gear 3332 is meshed with the third gear 3333, and the fourth gear 3334 is meshed with the fifth gear 3335.

[0067] Specifically, the number of teeth of the driving gear 332 is less than that of the first gear 3331. Since the driving gear 332 is meshed with the first gear 3331, when power is transmitted from the driving gear 332 to the first gear 3331, the rotating speed of the first gear 3331 will be reduced, and at the same time, the torque will be increased, thereby achieving the effect of first-stage speed reduction.

[0068] The number of teeth of the second gear 3332 is less than the number of teeth of the third gear 3333. Since the third gear 3333 is engaged with the second gear 3332, when power is transmitted from the second gear to the third gear 3333, the rotation speed of the third gear 3333 is reduced, and the torque is increased, thereby achieving the effect of the second-stage reduction.

[0069] The number of teeth of the fourth gear 3334 is less than the number of teeth of the fifth gear 3335. Since the fifth gear 3335 is engaged with the fourth gear 3334, when power is transmitted from the fourth gear to the fifth gear 3335, the rotation speed of the fifth gear 3335 is reduced, and the torque is increased, thereby achieving the effect of the third-stage reduction.

[0070] In this embodiment, the three-stage reduction gear structure is adopted, which can achieve a larger reduction effect in a smaller space. Through the three-stage reduction, the output gear 331 finally obtains a suitable rotation speed and sufficient torque to drive the sliding member 32 to stably slide along the cross beam 31, thereby improving the sliding position control precision.

[0071] It can be understood that in other embodiments, the three-stage reduction gear structure is not limited to be adopted. For example, in some embodiments, a two-stage reduction gear structure can also be adopted. Compared with the three-stage reduction gear structure, the two-stage reduction gear structure has a reduced number of components, which can effectively reduce the volume and cost. In some other embodiments, a four-stage reduction gear structure can also be adopted. The four-stage reduction gear structure can provide a larger reduction ratio, which can further reduce the rotation speed of the output gear 331, improve the torque output, and ensure that the sliding member 32 can stably operate in various complex working conditions.

[0072] Please refer to FIG. 5 and FIG. 6. Figure 6 , Figure 6 FIG. 7 is a schematic diagram of the transmission relationship of the drive member 330, the reduction gear set 333, the output gear 331, the drive gear 332, and the rack 34 from another perspective. In some embodiments, the drive mechanism 33 further includes a connected encoder 334 and an encoder gear 335, and the encoder gear 335 is engaged with the reduction gear set 333.

[0073] Specifically, the encoder gear 335 can be configured to be engaged with any one of the gears in the reduction gear set 333. When the reduction gear set 333 rotates, the reduction gear set 333 drives the encoder gear 335 to synchronously rotate. In this way, the encoder 334 can accurately measure the rotation angle and rotation speed of the encoder gear 335.

[0074] The encoder 334 can be roughly square or rectangular in shape. It can be a photoelectric encoder, magnetic encoder, etc. For example, the encoder 334 can be a photoelectric encoder. The encoder 334 includes a housing, a connecting shaft, a code disk, and a photoelectric sensor. The connecting shaft is rotatably mounted on the housing, with one end extending into the housing and the other end extending to the outside of the housing and connecting to the encoder gear 335. The code disk is located inside the housing and mounted on the connecting shaft. The photoelectric sensor is located inside the housing and close to the code disk. The code disk has regularly distributed light-transmitting and opaque areas. The photoelectric sensor (usually composed of a light-emitting diode and a photosensitive element) can detect changes in the light signal. When the encoder gear 335 rotates, the code disk rotates accordingly. When light passes through the light-transmitting area of ​​the code disk and shines on the photosensitive element, the photoelectric sensor generates a high-level signal; when the light is blocked by the opaque area, a low-level signal is generated. The combination of these high and low level signals forms a pulse sequence. By counting and analyzing these pulse sequences, the rotation angle and rotation speed of the encoder gear 335 can be accurately calculated.

[0075] Understandably, since the encoder gear 335 meshes with the reduction gear set 333, after the encoder 334 accurately measures the rotation angle and rotation speed of the encoder gear 335, based on the transmission relationship between the encoder gear 335 and the reduction gear set 333, as well as the transmission relationship between the slider 32 and the output gear 331, the position, speed, and direction of movement of the slider 32 on the crossbeam 31 can be accurately calculated. This ensures the position adjustment accuracy of the slider 32 and the calibration elements on the slider 32, and improves the accuracy and reliability of the calibration.

[0076] In some embodiments, such as Figure 6 As shown, encoder gear 335 meshes with fifth gear 3335. Since fifth gear 3335 is coaxially arranged with output gear 331, fifth gear 3335 can directly reflect the rotation angle and rotation speed of output gear 331. Therefore, meshing encoder gear 335 with fifth gear 3335 can more accurately reflect the actual movement of slider 32 and reduce cumulative error.

[0077] In other words, if the encoder gear 335 meshes with other gears in the reduction gear set 333 (such as the first gear 3331), due to the multi-stage gear transmission between the first gear 3331 and the output gear 331, each stage of gear transmission will introduce a certain transmission ratio error (including manufacturing error, assembly error, wear error, etc.). These errors will accumulate continuously during the multi-stage transmission process, resulting in a deviation between the motion information of the sliding member 32 measured at the end and the actual motion information. However, if the encoder gear 335 meshes directly with the fifth gear 3335, this accumulated error can be minimized, and the measurement accuracy of the overall system can be improved.

[0078] Please refer to Figures 7 to 11 , Figure 7 is a perspective view of the sliding member 32, Figure 8 is a perspective view of the sliding member 32 from another angle, Figure 9 is a perspective view of the locking member 336, Figure 10 is a schematic view of the internal structure of the sliding member 32 when the crossbeam 31 is in the unfolded state; Figure 10 is a schematic view of the internal structure of the sliding member 32 when the crossbeam 31 is in the folded state.

[0079] In some embodiments, the sliding member 32 comprises a sliding plate 320 and a back plate 321, the back plate 321 is arranged on the side of the sliding plate 320 facing the crossbeam 31, and the sliding plate 320 and the back plate 321 form a receiving cavity 3200 therearound, and the drive gear 332 and the reduction gear set 333 are installed in the receiving cavity 3200.

[0080] As shown in Figure 7 and Figure 8 , the sliding member 32 comprises a sliding plate 320 and a back plate 321, the back plate 321 can be installed on the sliding plate 320 in a detachable manner such as screwing or clamping, and the side surface of the sliding plate 320 away from the back plate 321 is used to mount calibration elements such as calibration targets, reflectors, and lasers to calibrate the vehicle auxiliary driving system.

[0081] The sliding plate 320 and the back plate 321 form a receiving cavity 3200 therearound, and the drive gear 332, the encoder gear 335, and the reduction gear set 333 are installed in the receiving cavity 3200 to improve the operation stability and safety of the driving mechanism 33.

[0082] Optionally, the driving member 330, the output gear 331, and the encoder 334 are installed on the side of the back plate 321 away from the sliding plate 320 (the outer side of the back plate 321), the back plate 321 is provided with a first shaft hole 3211, a second shaft hole 3212, and a communication groove 3213, the first shaft hole 3211 is used for the output shaft of the driving member 330 to pass through, and the output shaft of the driving member 330 is in transmission connection with the drive gear 332 after passing through the first shaft hole 3211. The second shaft hole 3212 is used for the rotating shaft 323 to pass through, one end of the rotating shaft 323 is located in the receiving cavity 3200 to facilitate connection with the fifth gear 3335, and the other end of the rotating shaft 323 extends to the outer side of the back plate 321 through the second shaft hole 3212 to facilitate connection with the output gear 331. The communication groove 3213 is in communication with the receiving cavity 3200, and the encoder 334 is installed in the communication groove 3213 and at least partially extends into the receiving cavity 3200.

[0083] In some embodiments, the back plate 321 comprises a bottom wall 3215 and a side wall 3216 surrounding the periphery of the bottom wall 3215, and the side wall 3216 can be fixedly connected with the sliding plate 320 by screwing or the like, so as to fixedly install the back plate 321 on the sliding plate 320.

[0084] As shown in Figures 9 to 11 some embodiments, the driving mechanism 33 further comprises a locking piece 336 rotatably installed in the receiving cavity 3200, and the locking piece 336 is provided with an engaging portion 3360, when the cross beam 31 is in the unfolded state, the engaging portion 3360 is separated from the reduction gear set 333 and the driving gear 332, when the cross beam 31 is in the folded state, the locking piece 336 rotates relative to the sliding piece 32 under the action of its own gravity, so that the engaging portion 3360 is engaged with the reduction gear set 333 or the driving gear 332.

[0085] The locking piece 336 can be a pendulum, which is in a substantially rod-shaped structure, and one end of the locking piece 336 can be rotatably installed in the receiving cavity 3200 through a mounting shaft. The engaging portion 3360 and the locking piece 336 can be an integral structure to ensure the stability of the overall structure. Alternatively, the engaging portion 3360 can be a hook-shaped or tooth-shaped structure to facilitate engagement with the reduction gear set 333 or the driving gear 332.

[0086] As shown in Figure 10 when the cross beam 31 is in the unfolded state, the locking piece 336 is arranged in the vertical direction under the action of its own gravity, at this time, the engaging portion 3360 on the locking piece 336 is away from the reduction gear set 333 and the driving gear 332, ensuring that the driving gear 332 and the reduction gear set 333 can rotate freely, thereby driving the output gear 331 to rotate, so that the sliding piece 32 can move normally, without affecting the normal calibration operation of the calibration device 100, and avoiding interference of the locking piece 336 with the operation of the driving mechanism 33.

[0087] As shown in Figure 11 when the cross beam 31 needs to be folded and stored, the cross beam 31 will be inclined relative to the horizontal direction, and the locking piece 336 rotates relative to the sliding piece 32 under the action of its own gravity, so that the engaging portion 3360 on the locking piece 336 is engaged with the reduction gear set 333 or the driving gear 332, achieving the locking of the sliding piece 32, avoiding the accidental movement of the sliding piece 32 due to the rotation of the reduction gear set 333 during transportation or folding and storage, and ensuring the safety and stability of the cross beam 31 during folding and storage.

[0088] In some embodiments, the engaging portion 3360 can engage with the driving gear 332 when the cross beam 31 is in the folded state. Since the driving gear 332 is directly connected with the driving member 330, the torque of the driving gear 332 is relatively small compared with the gears in the gear reduction set 333, therefore, configuring the engaging portion 3360 to engage with the driving gear 332 can more easily overcome the torque of the driving gear 332 to achieve the locking of the sliding member 32.

[0089] It can be understood that in other embodiments, the engaging portion 3360 can also be configured to engage with any one of the gears in the gear reduction set 333 when the cross beam 31 is being folded. In addition, the engaging portion 3360 can also be configured to engage with the encoder gear 335 when the cross beam 31 is being folded.

[0090] In some embodiments, the sliding member 32 is provided with an unlocking hole 3217 (see Figure 8 ) for the unlocking tool 200 to extend into the accommodation cavity 3200, and the unlocking hole 3217 corresponds to the position of the locking member 336.

[0091] As shown in Figure 11 , the unlocking hole 3217 can be a square hole or a round hole, etc., and the unlocking hole 3217 is arranged on the sliding member 32 and communicates with the accommodation cavity 3200. It should be noted that the unlocking hole 3217 corresponds to the position of the locking member 336, ensuring that the unlocking tool can extend into the accommodation cavity 3200 through the unlocking hole 3217 and can actuate the locking member 336. Optionally, the unlocking hole 3217 can be arranged on the back plate 321, and in some embodiments, the unlocking hole 3217 can be arranged on the bottom side wall 3216 of the back plate 321, so as to facilitate the unlocking tool to be inserted into the accommodation cavity 3200 from the bottom unlocking hole 3217.

[0092] The unlocking tool can be a rod-shaped structure, when the locking member 336 needs to be unlocked, the operator inserts the unlocking tool into the accommodation cavity 3200 through the unlocking hole 3217, and by operating the unlocking tool, the locking member 336 is subjected to a suitable force to produce a corresponding rotation, and finally the locking member 336 is separated from the driving gear 332, thereby releasing the locking of the sliding member 32.

[0093] In this embodiment, by providing the unlocking hole 3217, the unlocking tool can extend into the accommodation cavity 3200 through the unlocking hole 3217 to achieve the unlocking of the sliding member 32, and the unlocking process is convenient and fast, so that the operator can quickly complete the unlocking process without disassembling the sliding member 32.

[0094] Please refer to Figure 12 and Figure 13 , Figure 12 is a partial perspective view of the cross beam 31,Figure 13 is a partial perspective view of the beam module 30. In some embodiments, the beam 31 is provided with a mounting groove 313 and a receiving groove 314 on one side of the sliding member 32, the mounting groove 313 and the receiving groove 314 are sequentially arranged along the height direction of the beam 31, and the mounting groove 313 and the receiving groove 314 both penetrate through the opposite ends of the beam 31 in the length direction. Optionally, the mounting groove 313 is arranged above the receiving groove 314, the mounting groove 313 and the receiving groove 314 are in communication, and the rack 34 in the mounting groove 313 is engaged with the output gear 331 in the receiving groove 314.

[0095] In addition, the receiving groove 314 can also be used to accommodate the driving member 330 and the encoder 334. Specifically, the driving member 330 and the encoder 334 can be accommodated in the receiving groove 314 at one end of the beam 31, respectively, to improve the overall layout compactness and save space.

[0096] In some embodiments, the bottom of the beam 31 is provided with a guide rail 315, and the sliding member 32 is connected with a sliding block 324 which is slidingly installed on the guide rail 315.

[0097] As shown in Figure 13 , the guide rail 315 is arranged along the length direction of the beam 31, and the guide rail 315 can be fixedly installed on the beam 31 by screwing, clamping or the like.

[0098] The sliding member 32 further includes an extension plate 325 which is perpendicularly connected with the back plate 321 and extends towards the beam 31. The sliding block 324 can be installed on the side of the extension plate 325 facing the beam 31, and optionally, the sliding block 324 can be fixedly installed on the extension plate 325 by screwing, clamping or the like.

[0099] The sliding block 324 is slidingly installed on the guide rail 315, and when the driving member 330 drives the output gear 331 to rotate relative to the rack 34, the sliding block 324 on the sliding member 32 can slide relative to the guide rail 315 at the bottom of the beam 31, thereby ensuring the stable operation of the sliding member 32 relative to the beam 31.

[0100] In some embodiments, the bottom of the beam 31 is provided with a limiting groove 316 which is arranged along the length direction of the beam 31, and the guide rail 315 is installed in the limiting groove 316.

[0101] In some embodiments, the sliding member 32 is further provided with a limiting plate 326, one end of the limiting plate 326 is fixedly connected with the sliding member 32, and the other end of the limiting plate 326 extends to the top of the beam 31 and is limitedly matched with the top surface of the beam 31, thereby further improving the stability of the sliding member 32 during sliding.

[0102] Based on the same inventive concept, the utility model embodiment further provides a kind of calibration system, and calibration system includes the calibration equipment 100 in the above embodiment and diagnostic instrument, diagnostic instrument is connected with calibration equipment communication.

[0103] Diagnostic instrument can be panel diagnostic instrument, to facilitate carrying and transportation, optionally, the beam 311 of calibration equipment is provided with visual camera, visual camera is connected with diagnostic instrument communication, and diagnostic instrument can be used to receive the vehicle image data photographed by visual camera.

[0104] Optionally, calibration system can also include target, reflector, laser and other calibration elements, these calibration elements can be installed on sliding plate 320.

[0105] Finally, it should be noted that: the above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto;Under the thought of the utility model, the technical features in the above embodiment or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, for the sake of simplicity, they are not provided in detail;Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of technical features;And these modifications or replacements do not make the essence of corresponding technical scheme deviate from the scope of the technical scheme of each embodiment of the utility model.

Claims

1. A beam module, characterized in that, include: A crossbeam, wherein a rack is provided along its length; A sliding member, which is slidably mounted on the crossbeam; A drive mechanism is mounted on the sliding member. The drive mechanism includes a drive member and an output gear that is pulsatorically connected to the drive member. The output gear meshes with the rack. The drive unit can drive the output gear to mesh with the rack, so that the slider can slide along the crossbeam.

2. The beam module according to claim 1, characterized in that, The driving mechanism further includes a driving gear and a reduction gear set. The driving gear is disposed on the output shaft of the driving member, and the reduction gear set is disposed between the driving gear and the output gear. The driving member drives the driving gear to rotate, and in turn drives the reduction gear set and the output gear to rotate in sequence.

3. The beam module according to claim 2, characterized in that, The reduction gear set includes a first gear and a second gear arranged coaxially, a third gear and a fourth gear arranged coaxially, and a fifth gear arranged coaxially with the output gear. The first gear meshes with the drive gear, the second gear meshes with the third gear, and the fourth gear meshes with the fifth gear.

4. The beam module according to claim 3, characterized in that, The drive mechanism also includes an encoder and an encoder gear connected to it, the encoder gear meshing with the reduction gear set.

5. The beam module according to claim 2, characterized in that, The sliding component includes a sliding plate and a back plate. The back plate covers the side of the sliding plate facing the crossbeam. The sliding plate and the back plate form a receiving cavity. The drive gear and the reduction gear set are both installed in the receiving cavity.

6. The beam module according to claim 5, characterized in that, The driving mechanism further includes a locking member, which is rotatably mounted in the receiving cavity, and the locking member is provided with an engaging part; When the crossbeam is in the unfolded state, the meshing part is separated from the reduction gear set and the drive gear; When the crossbeam is in a folded state, the locking member rotates relative to the sliding member under its own weight, so that the meshing part engages with the reduction gear set or the drive gear.

7. The beam module according to claim 6, characterized in that, The slider has an unlocking hole for an unlocking tool to be inserted into the receiving cavity, and the unlocking hole corresponds to the position of the locking member.

8. The beam module according to claim 1, characterized in that, The crossbeam has a connected mounting groove and a receiving groove on the side facing the sliding member. The rack is installed in the mounting groove, and the output gear is located in the receiving groove and meshes with the rack.

9. A calibration device, characterized in that, The calibration equipment includes the beam module as described in any one of claims 1-8; and Base; A column is vertically mounted on the base, and the crossbeam module is installed on the column.

10. A calibration system, characterized in that, The calibration system includes the calibration device as described in claim 9; and A diagnostic instrument, which is communicatively connected to the calibration device.

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