High-precision differential shell size detector

Abstract

The invention is applied to the technical field of differential shell size detection, and particularly discloses a high-precision differential shell size detector which comprises a frame body, a control box is fixedly mounted on the outer surface of one side of the frame body, and threaded rods are rotatably mounted on the outer surfaces of the two ends of a placement platform. According to the high-precision differential shell size detector, after a differential shell is placed on the placement platform, a pushing servo driving motor can be controlled to be started by controlling an emergency stop button, a threaded rod is driven to rotate, a clamping block connected with the threaded rod can move, the differential shell is clamped through the movement of the clamping block, and the size of the differential shell is detected. And through the V-shaped design of the clamping blocks, the differential shell can be automatically aligned after being clamped, the stability of the differential shell after being placed is improved, the differential shell can be positioned in advance, high-stability and high-precision measurement conditions are provided for subsequent measurement, the measurement precision of the differential shell is indirectly improved, and the placement and alignment time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of differential housing size detection, and specifically to a high-precision differential housing size detector. Background Technique

[0002] In the production of automobiles, the differential is an indispensable and important component, and the differential housing is a key part of the differential. The dimensional accuracy of the differential housing plays a crucial role in the performance and reliability of the differential. With the continuous development of the automotive industry, the requirements for the dimensional accuracy of the differential housing used in automobiles are also getting higher and higher;

[0003] An automotive differential is a mechanism that enables the left and right (or front and rear) drive wheels of an automobile to rotate at different speeds. It mainly consists of left and right half-axle gears, two planetary gears, and a differential housing. In order to indirectly assemble the half-axle gears and planetary gears into the interior of the differential housing, accurate measurement and detection are required at positions such as the shaft holes and assembly holes on the differential housing, so that the differential housing can be more smooth during use and the service life can be extended to improve the quality;

[0004] However, the traditional methods for measuring the dimensions of differential housings have some limitations. For example, using manual measuring tools such as calipers and micrometers for measurement not only has low efficiency, but also the measurement accuracy is easily affected by factors such as human operation, and it is difficult to meet the requirements for high precision and high efficiency in modern automobile production. In addition, some early automated measuring devices also have deficiencies in terms of measurement accuracy, measurement range, and flexibility due to technical limitations. Therefore, it is necessary to develop a high-precision, high-efficiency, low-cost, and easy-to-operate differential housing size detector to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision differential housing size detector to solve the problems of low detection accuracy and low efficiency proposed in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A high-precision differential housing size detector, including a frame body. A control box is fixedly installed on the outer surface of one side of the frame body, and one end of the control box is designed to be inclined. An installation vertical plate is fixedly installed on the outer surface of one side of the frame body, and the installation vertical plate is perpendicular to the frame body. A placement platform is slidably installed on the outer surface of the frame body. Push servo drive motors are fixedly installed on the outer surfaces of both ends of the placement platform. Threaded rods are rotatably installed on the outer surfaces of both ends of the placement platform, and the threaded rods are connected to the output ends of the push servo drive motors. A clamping block is slidably installed inside the frame body, and the clamping block is threadedly connected to the threaded rod. The clamping block is designed in a V shape, and the outer surface of the clamping block fits with the outer surface of the differential housing.

[0007] Preferably, an extension platform is fixedly installed on the outer surface of one side of the frame away from the installation vertical plate, a guide rail assembly is fixedly installed on the outer surface of the extension platform and the frame, and the other end of the guide rail assembly is connected to the placement platform. A pushing and limiting mechanism is arranged between the extension platform and the installation vertical plate.

[0008] With the above technical solution, through the arrangement of the extension platform and the guide rail assembly, the placement platform can be easily moved out of the frame, so as to facilitate placing the differential housing above the placement platform, and the placement platform can be conveniently retracted into the interior of the frame, making it more convenient and easy to place and remove the differential housing, and the detector will not be damaged due to accidental operation.

[0009] Preferably, the pushing and limiting mechanism includes: an electric push rod, which is fixedly installed on the outer surface of the frame, grooves are formed on the outer surfaces of the frame and the extension platform, the output end of the electric push rod is connected to the placement platform, and the outer surface of the placement platform is respectively attached to the outer surfaces of the frame and the extension platform. A first contact switch is fixedly installed on the outer surface of one end of the installation vertical plate, and the outer surface of the first contact switch is attached to the outer surface of the placement platform.

[0010] With the above technical solution, the start of the electric push rod can drive the placement platform to move, so that the placement platform can move along the direction of the guide rail assembly, and the first contact switch is used to detect whether the placement platform reaches the position. After the placement platform reaches the position, it can contact with the first contact switch to perform the next measurement on the differential housing.

[0011] Preferably, a first servo screw component is fixedly installed on the side surface of one end of the installation vertical plate away from the placement platform, one end of the first servo screw component is rotatably connected to the installation vertical plate, a first moving platform is slidably installed on the outer surface of the installation vertical plate, the first moving platform is threadedly connected to the first servo screw component, a grating scale is fixedly installed on the outer surface of the installation vertical plate, and the other end of the grating scale is connected to the first moving platform. A moving trigger measurement mechanism is arranged between the installation vertical plate and the first moving platform.

[0012] With the above technical solution, the start of the first servo screw component can drive the first moving platform to move, so as to detect the dimensions at both ends of the differential housing, and the grating scale can be used to detect the position of the first moving platform in real time and accurately, which is convenient for the first laser detection and installation guide rod assembly to move and extend into the interior of the differential housing for measurement.

[0013] Preferably, the mobile trigger measurement mechanism includes: a spring pressure plate, which is slidably installed on the outer surface of the first mobile platform, and a second contact switch is fixedly installed on the outer surface of the first mobile platform, and the second contact switch is located above the spring pressure plate. The outer surface of the spring pressure plate is in contact with the outer surface of the differential housing. A spacer support ring is inserted and installed on the outer surface of the placement platform, and the spacer support ring is engaged with the placement platform. The outer surface of the spacer support ring is in contact with the outer surface of the differential housing.

[0014] With the above technical solution, after the first mobile platform moves downward and contacts the differential housing, the spring pressure plate will move and retract into the first mobile platform, and the second contact switch will be triggered by the movement of the spring pressure plate, so that the second contact switch can be triggered to stop the movement of the first mobile platform, enabling the first mobile platform to be limited and stopped. At the same time, the differential housing can be lifted and supported by the spacer support ring, so that the other end of the differential housing can be level with the placement platform after being supported by the spacer support ring, and the length of both ends of the differential housing can be known by the grating ruler after the first mobile platform stops.

[0015] Preferably, a speed control motor gear assembly is fixedly installed on the outer surface of the first mobile platform, and one end of the speed control motor gear assembly is located inside the first mobile platform. A secondary gear is rotatably installed at one end of the first mobile platform away from the first servo screw assembly, and the secondary gear is engaged with the output end of the speed control motor gear assembly. A first laser detection installation guide rod assembly is installed through the outer surface of the secondary gear, and the first laser detection installation guide rod assembly is slidably connected to the secondary gear.

[0016] With the above technical solution, the rotation of the speed control motor gear assembly drives the secondary gear to rotate, so that the first laser detection installation guide rod assembly connected to the secondary gear can rotate slowly, enabling the moving first laser detection installation guide rod assembly to rotate, and measuring the position to be detected on the reducer housing more quickly.

[0017] Preferably, a first slip ring is fixedly installed on the outer surface of the first mobile platform, and the first slip ring is concentric with the secondary gear. A set screw is threadedly installed at the other end of the first slip ring, and the set screw on the outer surface of the first slip ring is in contact with the outer surface of the first laser detection installation guide rod assembly. The first laser detection installation guide rod assembly is square in design, and scale lines are provided on the outer surface of the first laser detection installation guide rod assembly.

[0018] By adopting the above technical solution, through the design of the first slip ring, the circuit on the first laser detection mounting guide rod assembly can be connected to the first slip ring, so that the circuit will not be affected by the rotation of the first laser detection mounting guide rod assembly. At the same time, the position of the first laser detection mounting guide rod assembly can be adjusted through the set screw and the scale line on the outer surface of the first laser detection mounting guide rod assembly for measuring differential housings of different heights.

[0019] Preferably, a second servo screw assembly is fixedly mounted on the outer surface of one end of the frame away from the mounting vertical plate, and the output end of the second servo screw assembly is rotatably connected to the frame, a second movable platform is slidably mounted inside the frame, and a push servo motor is fixedly mounted on the outer surface of the second movable platform, a second slip ring is fixedly mounted on the outer surface of the second movable platform, and the second slip ring and the push servo motor are concentrically designed, a connecting assembly guide rod is fixedly mounted on the output end of the push servo motor, and the connecting assembly guide rod is connected to the second slip ring.

[0020] By adopting the above technical solution, the second mobile platform can be pushed to move by the rotation of the second servo screw assembly, so that the second mobile platform can move together with the push servo motor, the connecting assembly guide rod and the second laser detection installation guide rod assembly. At the same time, when the second laser detection installation guide rod assembly is rotated together through the second slip ring, the circuit of the second laser detection installation guide rod assembly can rotate together without being affected, and the second laser detection installation guide rod assembly is conveniently inserted into the differential housing for measurement.

[0021] Preferably, a second laser detection installation guide rod assembly is inserted into the outer surface of the connecting assembly guide rod, a circular hole is opened on the outer surface of the frame, and the circular hole on the outer surface of the frame is concentric with the pad support ring, and the pad support ring and the second laser detection installation guide rod assembly are concentric, and the second laser detection installation guide rod assembly does not exceed the plane of the extension platform.

[0022] By adopting the above technical solution, the second laser detection mounting guide rod assembly can be easily disassembled and installed, and the second laser detection mounting guide rod assembly can be easily maintained and replaced. The second laser detection mounting guide rod assembly can also pass through the frame and the placement platform after being moved to measure the mounting hole of the differential housing.

[0023] Preferably, a control box is fixedly installed on the outer surface of one end of the installation vertical plate close to the electric push rod, and one end of the control box is designed to be inclined. A main control operation screen is fixedly installed on the outer surface of the control box, and an operation emergency stop button is fixedly installed on the outer surface of the control box. A secondary display screen is rotatably installed on the outer surface of the installation vertical plate, and the secondary display screen is located at one end of the installation vertical plate away from the pushing servo motor. An audible and visual alarm is fixedly installed on the outer surface of the secondary display screen. A tightening and fixing knob is threadedly installed between the installation vertical plate and the secondary display screen, and the outer surface of the tightening and fixing knob is fitted with the outer surface of the secondary display screen.

[0024] With the above technical solution, through the inclined design of the control box, it is convenient for the user to view the main control operation screen and the operation emergency stop button, and it is convenient to operate the main control operation screen and the operation emergency stop button. The design of the position of the operation emergency stop button can facilitate control on the other side of the detector. At the same time, the position and angle of the secondary display screen can be fixed through the tightening and fixing knob, and it is convenient to view the detected data by observing the secondary display screen. At the same time, when the size of the differential housing exceeds the set value, the audible and visual alarm will be activated to remind the worker.

[0025] Compared with the prior art, the beneficial effects of the present invention are: This high-precision differential housing size detector:

[0026] 1. After placing the differential housing on the placement platform, the pushing servo drive motor can be controlled to start by operating the emergency stop button. The rotation of the pushing servo drive motor drives the threaded rod to rotate, so that the clamp block connected to the threaded rod can move. The differential housing is clamped through the movement of the clamp block, and the V-shaped design of the clamp block enables the differential housing to automatically align its position after being clamped, improving the stability of the differential housing after placement and enabling pre-positioning, providing a highly stable and high-precision measurement environment for subsequent measurement, indirectly improving the measurement accuracy of the differential housing and saving the time for placement and alignment.

[0027] 2. When performing detection and placement, only by operating the emergency stop button to start the electric push rod, the electric push rod can be contracted and extended, so that the placement platform can move along the direction of the guide rail assembly, the placement platform can move out of the frame body, and the placement platform can be located above the extension platform, facilitating the placement and removal of the differential housing, and not bumping into the detector when taking and placing the differential housing, improving the convenience of taking and placing and reducing the probability of the detector being bumped and damaged.

[0028] 3. When the placement platform moves to the detection position, the first contact switch will be triggered, and the first servo screw assembly will be started by the triggering of the first contact switch, so that the first servo screw assembly can push the first mobile platform to move, so that the first mobile platform can approach and contact the differential housing, so that the spring pressure plate can be squeezed and retracted into the first mobile platform, and the first contact switch is triggered by the spring pressure plate, so that the first mobile platform can stop automatically. With the use of the grating ruler, the position of the first mobile platform can be known in real time, and the moving speed of the first mobile platform can be controlled by the first servo screw assembly, and the length of both ends of the differential housing can be measured by the final stop position of the first mobile platform;

[0029] 4. With the start-up of the second servo screw assembly, the second mobile platform will drive the push servo motor, the connecting assembly guide rod and the second laser detection installation guide rod assembly to move together. In conjunction with the use of the first servo screw assembly, the second laser detection installation guide rod assembly and the first laser detection installation guide rod assembly can be inserted into the interior of the differential housing together. In conjunction with the use of the speed regulating motor gear assembly and the push servo motor, the second laser detection installation guide rod assembly and the first laser detection installation guide rod assembly can be slowly rotated and moved at the same time. The rotation and movement of the second laser detection installation guide rod assembly and the first laser detection installation guide rod assembly improve the measurement efficiency of the differential housing, and facilitate the measurement of differential housings of different sizes;

[0030] 5. The data of the control box can be adjusted and displayed through the main control screen, and the components of the tester can be controlled by operating the emergency stop button. The position of the emergency stop button allows the operator to operate conveniently when standing on the other side of the tester. The suspended secondary display screen allows the operator to view the measured dimensions of the differential case more intuitively. When the size of the differential case exceeds the set size range, the sound and light alarm will alert the operator to facilitate the viewing of the measured dimensions of the differential case and to remove and separate the non-compliant differential case. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the frame and the control box of the present invention;

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure of the installation stand plate and the first servo screw assembly of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the extension platform and the placement platform of the present invention;

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the placement platform and the screw rod of the present invention;

[0035] Figure 5 This is a three-dimensional structural schematic diagram of the placement platform and clamping block of the present invention;

[0036] Figure 6 This is a three-dimensional structural schematic diagram of the grating ruler and the first servo screw assembly of the present invention;

[0037] Figure 7 This is a sectional three-dimensional structural schematic diagram of the placement platform and the mounting vertical plate of the present invention;

[0038] Figure 8 This is a three-dimensional structural schematic diagram of the spring pressure plate and the second contact switch of the present invention;

[0039] Figure 9 This is a three-dimensional structural schematic diagram of the driving motor and the connecting and assembling guide rod of the present invention;

[0040] Figure 10 This is a three-dimensional structural schematic diagram of the placement platform and the first contact switch of the present invention.

[0041] In the figure: 1, frame body; 2, extension platform; 3, guide rail assembly; 4, placement platform; 5, push servo drive motor; 6, threaded rod; 7, clamping block; 8, electric push rod; 9, first contact switch; 10, mounting vertical plate; 11, first servo screw assembly; 12, first moving platform; 13, speed control motor gear assembly; 14, first slip ring; 15, sub-gear; 16, first laser detection installation guide rod assembly; 17, spring pressure plate; 18, second contact switch; 19, grating ruler; 20, pad support ring; 21, second servo screw assembly; 22, second moving platform; 23, push servo motor; 24, connecting and assembling guide rod; 25, second laser detection installation guide rod assembly; 26, control box; 27, main control operation screen; 28, operation emergency stop button; 29, secondary display screen; 30, tightening and fixing knob; 31, sound and light alarm; 32, second slip ring. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1-10, the present invention provides a technical solution: a high-precision differential housing size detector, including a frame body 1, a control box 26 is fixedly installed on the outer surface of one side of the frame body 1, and one end of the control box 26 is inclined. An installation vertical plate 10 is fixedly installed on the outer surface of one side of the frame body 1, and the installation vertical plate 10 is perpendicular to the frame body 1. A placement platform 4 is slidably installed on the outer surface of the frame body 1. Pushing servo drive motors 5 are fixedly installed on the outer surfaces of both ends of the placement platform 4. Threaded rods 6 are rotatably installed on the outer surfaces of both ends of the placement platform 4, and the threaded rods 6 are connected to the output ends of the pushing servo drive motors 5. A clamping block 7 is slidably installed inside the frame body 1, and the clamping block 7 is threadedly connected to the threaded rod 6. The clamping block 7 is designed in a V shape, and the outer surface of the clamping block 7 fits with the outer surface of the differential housing.

[0044] When the differential housing is placed on the placement platform 4, the pushing servo drive motor 5 can be started. The rotation of the pushing servo drive motor 5 drives the threaded rod 6 to rotate together, so that the threaded rod 6 can rotate and push the clamping block 7 to move, so that the clamping block 7 can push the differential housing placed in the pad support ring 20 to move and clamp. And through the V-shaped design of the clamping block 7, after the clamping block 7 is clamped, it can push the differential housing for positioning. By clamping and positioning the differential housing, the accuracy of subsequent measurement of the differential housing is improved, and the probability of damage to the first laser detection installation guide rod assembly 16 and the second laser detection installation guide rod assembly 25 inserted into the differential housing is reduced. At the same time, the speed of aligning the differential housing into the placement platform 4 is increased, and the efficiency and accuracy of measurement are improved.

[0045] An extension platform 2 is fixedly installed on the outer surface of the side of the frame body 1 away from the installation vertical plate 10. A guide rail assembly 3 is fixedly installed between the extension platform 2 and the outer surface of the frame body 1, and the other end of the guide rail assembly 3 is connected to the placement platform 4. A pushing limit mechanism is arranged between the extension platform 2 and the installation vertical plate 10.

[0046] Through the design of the extension platform 2 and the guide rail assembly 3, the placement platform 4 can perform a smooth pulling action along the guide rail assembly 3 on the outer surface of the frame body 1. In the actual operation process, the operator only needs to operate the emergency stop button 28 to make the electric push rod 8 push the placement platform 4, and the placement platform 4 can be easily separated from the space inside the frame body 1, so that the differential housing can be safely and stably placed on the placement platform 4. And after loading, push the placement platform 4 to reset, so that the placement platform 4 can quickly return to the designated detection area inside the frame body 1. This structural design greatly reduces the operation difficulty during the process of taking and placing the differential housing, and can avoid the differential housing bumping the detector due to narrow space or improper operation. While improving the operation convenience, the use safety and reliability of the detector are effectively enhanced.

[0047] The pushing and limiting mechanism includes: an electric push rod 8, which is fixedly installed on the outer surface of the frame body 1. Grooves are provided on the outer surfaces of the frame body 1 and the extension platform 2. The output end of the electric push rod 8 is connected to the placement platform 4, and the outer surface of the placement platform 4 is respectively attached to the outer surfaces of the frame body 1 and the extension platform 2. One end of the outer surface of the installation vertical plate 10 is fixedly installed with a first contact switch 9, and the outer surface of the first contact switch 9 is attached to the outer surface of the placement platform 4.

[0048] When the detection operation is started, the electric push rod 8 receives an instruction from the control system, enabling the electric push rod 8 to stably and precisely push the placement platform 4 to move smoothly along the trajectory of the guide rail assembly 3. As the placement platform 4 continues to move, the first contact switch 9 installed on the side surface of the installation vertical plate 10 will come into contact. When the placement platform 4 reaches the designated detection station, the first contact switch 9 can be triggered by the placement platform 4 and immediately send a signal, allowing the control box 26 to start the subsequent measurement program, thereby realizing the automatic and precise connection of the detection process.

[0049] One end of the side surface of the installation vertical plate 10 away from the placement platform 4 is fixedly installed with a first servo screw component 11, and one end of the first servo screw component 11 is rotatably connected to the installation vertical plate 10. A first moving platform 12 is slidably installed on the outer surface of the installation vertical plate 10, and the first moving platform 12 is threadedly connected to the first servo screw component 11. A grating ruler 19 is fixedly installed on the outer surface of the installation vertical plate 10, and the other end of the grating ruler 19 is connected to the first moving platform 12. A moving trigger measurement mechanism is provided between the installation vertical plate 10 and the first moving platform 12.

[0050] When it is necessary to detect the dimensions at both ends of the differential housing, after the first servo screw component 11 receives an instruction from the control box 26, it converts the rotational motion of the first servo screw component 11 into a linear motion of the first moving platform 12, enabling the first moving platform 12 to displace smoothly under the drive of the first servo screw component 11, providing an accurate positioning basis for the detection of the dimensions at both ends of the differential housing;

[0051] During this process, the grating ruler 19 captures the displacement data of the first moving platform 12 in real time with extremely high resolution, and accurately feeds the position information back to the control box 26 in the form of digital signals. Based on the real-time position data provided by the grating ruler 19, the control box 26 can precisely control the moving position and speed of the first laser detection installation guide rod assembly 16, enabling the first laser detection installation guide rod assembly 16 to smoothly extend into the differential housing along the established path according to the instruction, and comprehensively and highly accurately measure the internal dimensions of the housing through the first laser detection installation guide rod assembly 16, ensuring the accuracy and reliability of the detection results.

[0052] The mobile trigger measuring mechanism includes: a spring pressure plate 17, which is slidably installed on the outer surface of the first mobile platform 12, and a second contact switch 18 is fixedly installed on the outer surface of the first mobile platform 12, and the second contact switch 18 is located above the spring pressure plate 17, the outer surface of the spring pressure plate 17 is in contact with the outer surface of the differential housing, and a pad support ring 20 is plugged and installed on the outer surface of the placement platform 4, and the pad support ring 20 is engaged with the placement platform 4, and the outer surface of the pad support ring 20 is in contact with the outer surface of the differential housing.

[0053] By descending the first movable platform 12, the spring pressure plate 17 on the outer surface of the first movable platform 12 can contact the outer surface of the differential housing, so that the spring pressure plate 17 can be retracted into the interior of the first movable platform 12, so that the spring pressure plate 17 can trigger the second contact switch 18. The triggering of the second contact switch 18 can make the first movable platform 12 stop automatically, and at the same time, the differential housing can be raised with the support of the pad support ring 20, so that one end of the differential housing can be flush with the placement platform 4, so that the placement platform 4 can serve as the zero point, and with the use of the grating ruler 19, the overall length of the differential housing can be accurately measured.

[0054] A speed regulating motor gear assembly 13 is fixedly installed on the outer surface of the first mobile platform 12, and one end of the speed regulating motor gear assembly 13 is located on the inner side of the first mobile platform 12, and a sub-gear 15 is rotatably installed on one end of the first mobile platform 12 away from the first servo screw assembly 11, and the sub-gear 15 is meshed with the output end of the speed regulating motor gear assembly 13, and a first laser detection mounting guide rod assembly 16 is installed through the outer surface of the sub-gear 15, and the first laser detection mounting guide rod assembly 16 and the sub-gear 15 are slidably connected.

[0055] As the first moving platform 12 moves, the speed regulating motor gear assembly 13 will start together, so that the power of the speed regulating motor gear assembly 13 can be transmitted to the sub-gear 15, so that the sub-gear 15 rotates at a set low speed and uniform speed, and transmits the rotational power to the first laser detection installation guide rod assembly 16 connected to the sub-gear 15;

[0056] Driven by the secondary gear 15, the first laser detection installation guide rod assembly 16 rotates at a stable speed. At this time, the first laser detection installation guide rod assembly 16 not only moves in a straight line along the installation vertical plate 10, but also rotates slowly to form a compound motion trajectory. This design enables the first laser detection installation guide rod assembly 16 to cover the differential case to be inspected in an all-round and dead-angle manner. Through the dual action of rotation and movement, the laser detection device can quickly and accurately scan and measure various key parts of the case, which greatly improves the detection efficiency and measurement accuracy, and ensures efficient detection of the complex structure of the differential case.

[0057] A first slip ring 14 is fixedly installed on the outer surface of the first movable platform 12, and the first slip ring 14 and the sub-gear 15 are of concentric design. A set screw is threadedly installed on the other end of the first slip ring 14, and the set screw on the outer surface of the first slip ring 14 fits with the outer surface of the first laser detection mounting guide rod assembly 16. The first laser detection mounting guide rod assembly 16 is of square design, and scale lines are opened on the outer surface of the first laser detection mounting guide rod assembly 16.

[0058] The first slip ring 14 connects the signal transmission line on the first laser detection installation guide rod assembly 16 with the rotating contact part of the first slip ring 14, thereby constructing a stable dynamic conductive path. When the first laser detection installation guide rod assembly 16 rotates, signal interruption or data loss caused by line entanglement or pulling can be avoided, thereby providing stable power and data transmission guarantee for the first laser detection installation guide rod assembly 16;

[0059] The scale lines arranged on the outer surface of the first laser detection mounting guide rod assembly 16 and the set screws provided on the outer surface of the first slip ring 14 serve as adjustment components. The operator can loosen the set screws according to the actual height of the differential housing and accurately adjust the vertical position of the first laser detection mounting guide rod assembly 16 along the scale lines on the outer surface of the first laser detection mounting guide rod assembly 16. The precise scale markings of the scale lines provide a quantitative reference for the adjustment process to ensure the adjustment accuracy of the first laser detection mounting guide rod assembly 16. After the adjustment is in place, the first laser detection mounting guide rod assembly 16 is fixed by tightening the set screws, so that the first laser detection mounting guide rod assembly 16 can adapt to differential housings of different height specifications, which greatly improves the versatility and measurement adaptability of the detector.

[0060] A second servo screw assembly 21 is fixedly mounted on the outer surface of one end of the frame 1 away from the mounting vertical plate 10, and the output end of the second servo screw assembly 21 is rotationally connected to the frame 1, a second movable platform 22 is slidably mounted inside the frame 1, and a push servo motor 23 is fixedly mounted on the outer surface of the second movable platform 22, a second slip ring 32 is fixedly mounted on the outer surface of the second movable platform 22, and the second slip ring 32 and the push servo motor 23 are concentrically designed, a connecting assembly guide rod 24 is fixedly mounted on the output end of the push servo motor 23, and the connecting assembly guide rod 24 is connected to the second slip ring 32.

[0061] After the control box 26 issues an instruction, the second servo screw assembly 21 converts rotational motion into linear thrust to push the second moving platform 22 to move smoothly. As the bearing base, the second moving platform 22 synchronously drives the pushing servo motor 23, the connecting and assembling guide rod 24, and the second laser detection mounting guide rod assembly 25 to displace together, ensuring the relative positions of all components remain stable during movement and laying a foundation for accurate measurement;

[0062] During the movement of the second moving platform 22, the pushing servo motor 23 will rotate along with it, enabling the second laser detection mounting guide rod assembly 25 to rotate and insert into the differential housing. At this time, the second slip ring 32 will connect the power supply line and signal transmission line of the second laser detection mounting guide rod assembly 25 to the external control system. When the second laser detection mounting guide rod assembly 25 starts to rotate driven by the pushing servo motor 23, the brushes inside the second slip ring 32 keep in close contact with the conductive rings, ensuring that the lines are not affected by entanglement and pulling during rotation, thus guaranteeing that the second laser detection mounting guide rod assembly 25 can accurately insert into the differential housing to perform a full - range and high - precision dimensional inspection of key parts.

[0063] The second laser detection mounting guide rod assembly 25 is inserted and arranged on the outer surface of the connecting and assembling guide rod 24. Circular holes are provided on the outer surface of the frame body 1, and the circular holes on the outer surface of the frame body 1 are concentric with the cushion block support ring 20. Moreover, the cushion block support ring 20 is concentric with the second laser detection mounting guide rod assembly 25, and the second laser detection mounting guide rod assembly 25 does not exceed the plane of the extension platform 2.

[0064] The second laser detection mounting guide rod assembly 25 adopts a modular quick - disassembly design and can be conveniently disassembled and assembled with the connecting and assembling guide rod 24 through a standardized interface. It can be disassembled and installed in a short time, greatly shortening the maintenance and replacement time and significantly improving the daily maintenance efficiency of the equipment;

[0065] In terms of the measurement function, after the second moving platform 22 drives the second laser detection mounting guide rod assembly 25 to move, the second laser detection mounting guide rod assembly 25 can accurately pass through the through - holes on the outer surfaces of the frame body 1 and the placing platform 4, enabling the second laser detection mounting guide rod assembly 25 to quickly align with and insert into the mounting holes of the differential housing to efficiently measure key parameters such as the hole diameter and hole position accuracy of the differential housing, thus improving the measurement efficiency.

[0066] One end of the installation vertical plate 10 close to the electric push rod 8 is fixedly installed with a control box 26, and one end of the control box 26 is designed to be inclined. The outer surface of the control box 26 is fixedly installed with a main control operation screen 27, and the outer surface of the control box 26 is fixedly installed with an operation emergency stop button 28. The outer surface of the installation vertical plate 10 is rotatably installed with a secondary display screen 29, and the secondary display screen 29 is located at one end of the installation vertical plate 10 away from the pushing servo motor 23. The outer surface of the secondary display screen 29 is fixedly installed with an audible and visual alarm 31. A tightening and fixing knob 30 is installed between the installation vertical plate 10 and the secondary display screen 29 in a threaded manner, and the outer surface of the tightening and fixing knob 30 is in contact with the outer surface of the secondary display screen 29.

[0067] The inclined design of the control box 26 can facilitate workers to more easily observe and use the main control operation screen 27, and can be conveniently controlled through the operation emergency stop button 28. The design of the operation emergency stop button 28 on the control box 26 allows workers to stand on the other side of the detector. After placing the differential housing on the placement platform 4, the operation emergency stop button 28 can be directly operated. The angle of the secondary display screen 29 can be fixed by tightening the tightening and fixing knob 30, which is convenient for displaying the measured data through the secondary display screen 29 and for workers to view. At the same time, when the size of the differential housing exceeds the measured range, the buzzer on the outer surface of the operation emergency stop button 28 and the audible and visual alarm 31 will be activated and alarmed simultaneously to remind the operator that the size of the differential housing is unqualified, and it is convenient for operation and viewing of the size data.

[0068] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision differential housing dimension detector, comprising a frame body (1), one side outer surface of the frame body (1) is fixedly installed with a control box (26), and one end of the control box (26) is designed to be inclined. One side outer surface of the frame body (1) is fixedly installed with an installation vertical plate (10), and the installation vertical plate (10) is designed to be perpendicular to the frame body (1). A placement platform (4) is slidably installed on the outer surface of the frame body (1), and its characteristics are as follows: Servo drive motors for pushing (5) are fixedly installed on the outer surfaces at both ends of the placement platform (4). Threaded rods (6) are rotatably installed on the outer surfaces at both ends of the placement platform (4), and the threaded rods (6) are connected to the output ends of the servo drive motors for pushing (5). A clamping block (7) is slidably installed inside the frame body (1), and the clamping block (7) is in threaded connection with the threaded rod (6). The clamping block (7) is designed in a V shape, and the outer surface of the clamping block (7) is in fit with the outer surface of the differential housing.

2. The high-precision differential housing dimension detector according to claim 1, wherein: An extension platform (2) is fixedly installed on the outer surface of the side of the frame body (1) away from the mounting vertical plate (10). A guide rail assembly (3) is fixedly installed between the extension platform (2) and the outer surface of the frame body (1), and the other end of the guide rail assembly (3) is connected to the placement platform (4). A pushing limit mechanism is arranged between the extension platform (2) and the mounting vertical plate (10).

3. A high-precision differential housing size detector according to claim 2, characterized in that: The pushing limit mechanism includes: an electric push rod (8). The electric push rod (8) is fixedly installed on the outer surface of the frame body (1). Grooves are formed on the outer surfaces of the frame body (1) and the extension platform (2). The output end of the electric push rod (8) is connected to the placement platform (4), and the outer surface of the placement platform (4) is in fit with the outer surfaces of the frame body (1) and the extension platform (2). A first contact switch (9) is fixedly installed on the outer surface of one end of the mounting vertical plate (10), and the outer surface of the first contact switch (9) is in fit with the outer surface of the placement platform (4).

4. The high-precision differential housing size detector according to claim 1, characterized in that: A first servo screw assembly (11) is fixedly installed on the side surface of the end of the mounting vertical plate (10) away from the placement platform (4), and one end of the first servo screw assembly (11) is rotatably connected to the mounting vertical plate (10). A first moving platform (12) is slidably installed on the outer surface of the mounting vertical plate (10), and the first moving platform (12) is in threaded connection with the first servo screw assembly (11). A grating scale (19) is fixedly installed on the outer surface of the mounting vertical plate (10), and the other end of the grating scale (19) is connected to the first moving platform (12). A moving trigger measurement mechanism is arranged between the mounting vertical plate (10) and the first moving platform (12).

5. The high-precision differential housing size detector according to claim 4, characterized in that: The moving trigger measurement mechanism includes: a spring pressing plate (17). The spring pressing plate (17) is slidably installed on the outer surface of the first moving platform (12). A second contact switch (18) is fixedly installed on the outer surface of the first moving platform (12), and the second contact switch (18) is located above the spring pressing plate (17). The outer surface of the spring pressing plate (17) is in fit with the outer surface of the differential housing. A pad support ring (20) is inserted and installed on the outer surface of the placement platform (4), and the pad support ring (20) is engaged with the placement platform (4). The outer surface of the pad support ring (20) is in fit with the outer surface of the differential housing.

6. The high-precision differential case size detector according to claim 4, wherein: A speed-regulating motor gear assembly (13) is fixedly installed on the outer surface of the first moving platform (12), and one end of the speed-regulating motor gear assembly (13) is located inside the first moving platform (12). A secondary gear (15) is rotatably installed at one end of the first moving platform (12) away from the first servo screw assembly (11), and the secondary gear (15) meshes with the output end of the speed-regulating motor gear assembly (13). A first laser detection installation guide rod assembly (16) is installed through the outer surface of the secondary gear (15), and the first laser detection installation guide rod assembly (16) is slidably connected to the secondary gear (15).

7. The high-precision differential case dimension detector according to claim 6, characterized in that: A first slip ring (14) is fixedly installed on the outer surface of the first moving platform (12), and the first slip ring (14) and the secondary gear (15) are concentrically designed. A set screw is threadedly installed at the other end of the first slip ring (14), and the set screw on the outer surface of the first slip ring (14) is in contact with the outer surface of the first laser detection installation guide rod assembly (16). The first laser detection installation guide rod assembly (16) is square in design, and scale lines are provided on the outer surface of the first laser detection installation guide rod assembly (16).

8. The high-precision differential case size detector according to claim 1, wherein: A second servo screw assembly (21) is fixedly installed on the outer surface of one end of the frame body (1) away from the mounting vertical plate (10), and the output end of the second servo screw assembly (21) is rotatably connected to the frame body (1). A second moving platform (22) is slidably installed inside the frame body (1), and a pushing servo motor (23) is fixedly installed on the outer surface of the second moving platform (22). A second slip ring (32) is fixedly installed on the outer surface of the second moving platform (22), and the second slip ring (32) and the pushing servo motor (23) are concentrically designed. A connecting and assembling guide rod (24) is fixedly installed at the output end of the pushing servo motor (23), and the connecting and assembling guide rod (24) is connected to the second slip ring (32).

9. The high-precision differential housing dimension detector according to claim 8, characterized in that: A second laser detection installation guide rod assembly (25) is inserted on the outer surface of the connecting and assembling guide rod (24). A circular hole is provided on the outer surface of the frame body (1), and the circular hole on the outer surface of the frame body (1) is concentric with the cushion block support ring (20), and the cushion block support ring (20) is concentric with the second laser detection installation guide rod assembly (25). The second laser detection installation guide rod assembly (25) does not exceed the plane of the extension platform (2).

10. A high-precision differential housing size detector according to claim 1, characterized in that: One end of the installation vertical plate (10) close to the electric push rod (8) is fixedly installed with a control box (26), and one end of the control box (26) is designed to be inclined. A main control operation screen (27) is fixedly installed on the outer surface of the control box (26). A control emergency stop button (28) is fixedly installed on the outer surface of the control box (26). A secondary display screen (29) is rotatably installed on the outer surface of the installation vertical plate (10), and the secondary display screen (29) is located at one end of the installation vertical plate (10) away from the pushing servo motor (23). An audible and visual alarm (31) is fixedly installed on the outer surface of the secondary display screen (29). A tightening and fixing knob (30) is threadedly installed between the installation vertical plate (10) and the secondary display screen (29), and the outer surface of the tightening and fixing knob (30) is in contact with the outer surface of the secondary display screen (29).

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