Rapid and automatic positioning detection device for axle housing body and use method of rapid and automatic positioning detection device

Abstract

The invention relates to the technical field of automobile part machining, in particular to a rapid automatic positioning detection device for an axle housing body and a using method, and the device comprises a base, an end face detection unit, a straight edge positioning unit, a middle positioning unit and a vertical pressing unit. The two sides and the middle of the top of the base are provided with straight edge supporting bases and middle supporting rods used for supporting the two sides and the middle of the bottom of the axle housing body respectively. The end face detection units are fixed to the two ends of the top of the base and used for detecting the end face parallelism and deviation of the axle housing body. The straight edge positioning unit and the middle positioning unit are used for positioning the straight edge and the middle of the axle housing body respectively, and the axle housing body is pressed by the straight edge positioning unit and the middle positioning unit through the vertical pressing unit. The device has the functions of quickly self-positioning a workpiece, intuitively and quickly obtaining a detection result and the like, so that an axle housing body in a single-piece state is automatically adjusted to be below a detection reference, and quick detection of a plurality of items of stamping axle housing body parts is realized.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component processing, and in particular to a rapid automatic positioning detection device for a bridge housing body and a use method thereof. Background Art

[0002] The automobile axle housing is an important part of the automobile driving system. It not only needs to bear the weight of the automobile itself, but also needs to bear the reaction force, bending moment and braking torque from the driving wheels during the driving process. The punched and welded bridge is a common form of axle housing assembly. It is made by punching the upper and lower axle housing bodies and then splicing and butt welding them. The single-piece axle housing body, that is, the axle housing component after punching and before welding, is the basic component of the axle housing assembly.

[0003] In order to ensure that the axle housing assembly meets the design and performance requirements, it is essential to strictly test the geometric dimensions, shape accuracy and surface quality of the stamped axle housing body during the process. These test items usually include half-side length, straight seam gap, upper and lower misalignment, misalignment and large flange surface flatness. Through testing, quality problems in the production process can be discovered and corrected in a timely manner, avoiding subsequent processing difficulties or substandard finished product performance caused by defects, thereby improving overall product quality and production efficiency.

[0004] Although there are a variety of detection methods and devices for axle housing bodies and monolithic axle housing bodies in the prior art, the following deficiencies still exist: For example, the patent publication number is CN110701975A, and the patent name is a bridge housing body pre-welding detection device and detection method. The device positions the bridge housing body through a center positioning assembly and positioning devices in multiple directions, and completes multiple detection items through a half-length detection unit and a flatness detection unit. However, the device mainly performs positioning detection on the upper and lower bridge housing bodies before welding, and is insufficient for rapid automatic positioning detection of a single bridge housing body.

[0005] Patent with publication number CN204902724U: provides a bridge housing inspection tool, but the tool is mainly used to measure the center position of the bridge housing, has a relatively single function, and cannot meet the needs of comprehensive inspection of the bridge housing body.

[0006] Patent with publication number CN209470640U: Although it involves the measurement of the lute hole under the bridge housing, the measurement scope and purpose are relatively limited and it is not suitable for comprehensive geometric parameter detection of the bridge housing body.

[0007] Patent with publication number CN204142448U: mainly focuses on the air tightness detection of the bridge housing, rather than the geometric parameters and shape detection of the bridge housing body.

[0008] Patent publication number CN107081622A provides a rapid positioning and clamping device for drilling and tapping threaded vent holes in a rear axle housing of an automobile. Although it involves positioning and clamping technology, it is not intended for comprehensive testing of the axle housing body.

[0009] Patent with publication number CN102581051A: Although it involves a cold extrusion molding method and a die-forming machine tool for the bridge housing lute hole, it has no direct connection with the detection method and device of the bridge housing body.

[0010] The existing technology has deficiencies in the rapid automatic positioning detection of the axle housing body and the single-piece axle housing body, which are mainly manifested in low detection efficiency, inaccurate positioning, and multiple clamping required for multi-item detection. These problems limit the application effect of the existing technology in the production process of the axle housing body and cannot meet the needs of efficient, accurate and comprehensive detection.

[0011] In summary, although there are a variety of detection devices and methods related to the bridge housing body in the prior art, there are still deficiencies in the single-piece bridge housing body, especially in the rapid automatic positioning detection after stamping. The existing detection devices are either single-function or complex to operate, which makes it difficult to meet the needs of efficient and accurate detection of the bridge housing body on the production line. Therefore, the development of a device that can quickly and automatically locate and detect the single-piece bridge housing body is of great significance to improving production efficiency and ensuring product quality. Summary of the invention

[0012] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a rapid automatic positioning detection device for a bridge housing body and a method for use thereof, so as to achieve efficient, accurate and comprehensive detection of a single-piece bridge housing body and improve production efficiency and product quality.

[0013] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: The present invention discloses a rapid automatic positioning and detection device for a bridge shell body, comprising a base, an end face detection unit for detecting the distance between the end faces of the bridge shell body, a straight edge positioning, an intermediate positioning and a vertical clamping unit, wherein the top two sides and the middle of the base are respectively provided with straight edge support seats and an intermediate support rod for supporting the bottom two sides and the middle of the bridge shell body; the end face detection unit is fixed at the top two ends of the base for detecting the end face parallelism and deviation of the bridge shell body; the straight edge positioning and the intermediate positioning are respectively used for positioning the straight edge and the middle of the bridge shell body, and the straight edge positioning and the intermediate positioning are clamped against the straight edge and the middle top of the bridge shell body through the vertical clamping unit.

[0014] The end face detection unit includes an end cylinder, a fixed seat, a guide rod, a guide rod seat, an end face stop block, a length detection seat and a dial indicator. The cylinder body of the end cylinder is fixed to the outer wall of the fixed seat, the output end of the end cylinder is connected to the outer end of the guide rod, and the inner end of the guide rod passes through the inner hole of the guide rod seat and is connected to the middle part of the outer wall of the end face stop block; the dial indicator is fixed on the length detection seat, and a protruding block is provided on one side of the end face stop block, and the needle of the dial indicator can pass through the protruding block.

[0015] The straight-edge positioning includes a pressure rod, a pressure head, a horizontal cylinder, a horizontal cylinder fixing seat and a straight-edge support seat. The pressure rod is in an inverted "concave" shape, and the middle part of its top is connected to the bottom of the vertical pressing unit. The bottom ends on both sides of the pressure rod can be tightly contacted with the top of the straight edge of the bridge shell body. The two straight-edge support seats are in an inverted "T" shape, and their bottom ends are fixed to the top of the base, and their top ends are located below the bottom end of the pressure rod; the horizontal cylinder fixing seat is in an "L" shape, and its bottom is fixed to the front of the straight edge of the bridge shell body. The horizontal cylinder is fixed to the front wall of the horizontal cylinder fixing seat, and the output end of the horizontal cylinder passes through the outer wall of the horizontal cylinder fixing seat and is fixedly connected to the front end face of the pressure head, and the rear end face of the pressure head can be tightly contacted with the straight-edge front wall of the bridge shell body.

[0016] The intermediate positioning includes an intermediate pressure rod, an intermediate support rod, an intermediate arc positioning block and an intermediate support member. The intermediate support member is in an inverted "T"-shaped structure, and its bottom is fixed to the middle front of the bridge shell body. The intermediate arc positioning block includes an intermediate bottom plate, an intermediate arc front plate and an intermediate arc rear plate. The intermediate bottom plate is fixed to the top of the intermediate support member. The bottoms of the intermediate arc front plate and the intermediate arc rear plate are respectively fixed to the top front end and the top rear end of the intermediate bottom plate. The upper surfaces of the intermediate arc front plate and the intermediate arc rear plate are in an arc-shaped structure with a middle protrusion. The intermediate support rod is in a square structure, and its bottom end passes through the middle of the intermediate bottom plate and is connected to the top of the intermediate support member. The intermediate pressure rod is in a square structure, and its top end is connected to the bottom of the vertical clamping unit. The bottom end of the intermediate pressure rod can be in tight contact with the middle top of the bridge shell body.

[0017] The vertical clamping unit includes a vertical cylinder, a vertical pull rod, a swivel pin, a movable rod seat, a movable pull rod, a fixed block and a vertical clamping fixed seat. The vertical clamping fixed seat is fixed to the top rear side of the base, the fixed block is fixed to a side wall of the vertical clamping fixed seat, the cylinder body of the vertical cylinder is fixed below the rear wall of the fixed block, the top end of the piston rod of the vertical cylinder is connected to the vertical pull rod, a swivel pin hinged to the rear end of the movable pull rod is provided above the outer wall of the vertical pull rod, the top rear end of the fixed block is hinged to the bottom end of the movable rod seat with a yoke-shaped structure, the inner walls on both sides of the top of the movable rod seat are fixedly connected to the rear side of the side wall of the movable pull rod, and the tops of the pressure rod and the intermediate pressure rod are respectively fixedly connected to the front end bottom of the movable pull rod.

[0018] The cam is an angular contact plate, the contact plate being arranged on a track, and the cam is arranged on a track with the track being connected to the track with the support frame.

[0019] It also includes a trimming shape detection unit, which includes a plurality of straight edge detection blocks and bevel edge detection blocks, the distance between the front straight edge detection block and the inner wall of the rear straight edge detection block is equal to the distance between the inner walls of the middle arc positioning block; the distance between the front bevel edge detection block and the inner wall of the rear bevel edge detection block is equal to the distance between the inner walls of the middle arc positioning block; the bottoms of the straight edge detection block and the bevel edge detection block are fixed to the top of the base, the height of the outer end of the bevel edge detection block is equal to the height of the straight edge detection block, and the height of the inner end of the bevel edge detection block is equal to the height of the outer end of the middle arc front plate.

[0020] A vertical clamping data acquisition point is provided at the top outer end of the fixed block, and the vertical clamping data acquisition point is a distance sensor fixed at the top outer end of the fixed block, which is used to measure the distance between the top of the fixed block and the bottom of the movable pull rod; a workpiece straight edge data acquisition point and a workpiece bevel edge data acquisition point are respectively provided at the top of the straight edge detection block and the bevel edge detection block, and the workpiece straight edge data acquisition point is composed of distance measuring sensors arranged at the top front end and the top rear end of the straight edge detection block, and the workpiece bevel edge data acquisition point is composed of distance measuring sensors arranged at the top front end and the top rear end of the bevel edge detection block; a workpiece length data acquisition point is provided on the inner wall of the end face stop block; a horizontal clamping data acquisition point is provided on the pressure head; and a single-side shape data acquisition point is provided on the shape detection block.

[0021] It also includes a data processing device, which includes a data acquisition module, a data processing module, an abnormal warning module and a report generation module. The vertical direction clamping data collection point, the workpiece straight edge data collection point, the workpiece length data collection point, the horizontal direction clamping data collection point, the workpiece bevel edge data collection point and the shape single side data collection point are respectively communicated with the data acquisition module, the data acquisition module, the data processing module and the abnormal warning module are communicated in sequence, and the data processing module and the abnormal warning module are respectively communicated with the report generation module.

[0022] A switch assembly, a go / no-go gauge assembly and a calibrator are fixed to the top front end of the base, and the switch assembly is electrically connected to the end cylinder, the horizontal cylinder and the vertical cylinder respectively; the go / no-go gauge assembly includes a go / no-go gauge, a go / no-go gauge fixed base plate, a go / no-go gauge fixed inclined plate and a go / no-go gauge fixed vertical plate, the go / no-go gauge fixed base plate is fixed to the top of the base, the bottom ends of the two go / no-go gauge fixed inclined plates are connected to the tops of the two ends of the go / no-go gauge fixed base plate, the top ends of the go / no-go gauge fixed inclined plates on both sides are inclined toward the middle, the top ends of the go / no-go gauge fixed vertical plates are connected to the top ends of the go / no-go gauge fixed inclined plates, and the distance between the inner walls of the go / no-go gauge fixed vertical plates on both sides is smaller than the width of the middle of the go / no-go gauge.

[0023] The present invention discloses a method for using a fast automatic positioning detection device for a bridge housing body, which is characterized by comprising the following steps: Step 1: Preparation and startup of the detection system: Connect the detection device to the air source; establish connections between the data acquisition module and the vertical direction pressing data acquisition point, the workpiece straight edge data acquisition point, the workpiece length data acquisition point, the horizontal direction pressing data acquisition point, the workpiece bevel edge data acquisition point and the shape single edge data acquisition point, respectively, and prepare to collect various parameter values ​​during the detection process in real time; Step 2: Placement and positioning of the bridge housing: The stamped single-piece bridge housing body is placed into the testing device and supported and fixed by the straight-edge support seat and the middle support rod; The center is automatically positioned through the middle arc positioning block to ensure that the single-piece bridge housing body is in the correct detection position; Step 3: Axle housing body clamping and test benchmark setting: The control switch assembly is turned on to start the detection process; The horizontal cylinder extends to fit the inner cavity of the side of the axle housing body with the outer side of the straight-edge support seat; The vertical cylinder extends to press the movable tie rod downward, driving the straight-side pressure rod and the middle pressure rod to press the axle housing body; The end cylinders on both sides extend out, and the guide rod drives the end surface stoppers to fit the two ends of the axle housing body. At this time, the axle housing body is in the detection reference state; The data acquisition module collects the displacement, pressure and other parameter values ​​of the end cylinder, vertical cylinder and horizontal cylinder in real time, and inputs them into the data processing module for preliminary processing; Step 4: Gap detection and real-time data processing: The go / no-go gauge assembly detects the gaps between the axle housing body and the straight edge detection block, bevel edge detection block and shape detection block; The data processing module cleans, calibrates and calculates the collected gap data to obtain the actual gap value; Compare the actual gap value with the preset qualified range. Once an abnormal value is found, the abnormal warning module will be triggered immediately to issue an early warning prompt. Step 5: Length deviation measurement and real-time data processing: After the dial indicator is zeroed by the calibrator, the needle of the calibrator passes through the outer end face of the inner hole measuring end face stopper corresponding to the length detection seat; The data processing module collects the readings of the dial gauge in real time and calculates the length deviation value; Compare the length deviation value with the preset allowable deviation range. Once an abnormal value is found, the abnormal warning module is immediately triggered to issue an early warning prompt. Step 6: Detection completion and data processing: The control switch assembly is closed, and the release process of the detection device is started; The end cylinders on both sides retract and drive the end stop blocks to retreat; The vertical cylinder drives the straight-side pressure rod and the middle pressure rod to loosen; The horizontal cylinder retracts to release the axle housing body, and the axle housing body can be taken out at this time; The data processing module performs statistical analysis on the data collected during the entire testing process and generates a detailed test report; According to the early warning results and statistical analysis results, the report generation module automatically generates an electronic document or printout of the test report and provides it to the tester.

[0024] The beneficial effects of the present invention are: Fast and automatic positioning: The present invention adopts the bridge housing lute hole for positioning, and uses cylinders in multiple directions to apply pressure to the single-piece bridge housing body for fast and automatic positioning, so that the workpiece is quickly placed under the detection reference. This greatly improves the detection efficiency and shortens the production cycle.

[0025] One-time inspection of multiple items: The present invention can complete the inspection of multiple items such as half-side length, straight edge straightness, end face parallelism and single-side quantity of trimmed edge, without multiple clamping and positioning, thus improving the accuracy and reliability of the inspection.

[0026] Strong versatility: The present invention is suitable for the detection of bridge housing bodies of different lengths and models. It can meet the detection requirements of various models with simple adjustments and has strong versatility and flexibility.

[0027] High degree of informatization: By integrating automatic components such as cylinders, dial indicators, and go / no-go gauges, data processing and control of the detection process are realized, manual intervention is reduced, and the consistency and repeatability of detection are improved.

[0028] Improve product quality: The monolithic bridge housing body can be quickly inspected during the stamping process, which can promptly identify workpiece problems, effectively avoid batch quality problems, and improve overall product quality.

[0029] Optimizing the production process: The use of the present invention is helpful to optimize the production process of the bridge housing body. Through rapid positioning and detection, production information can be fed back in time to guide production adjustments and improvements. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an axonometric diagram of a rapid automatic positioning detection device for a bridge housing body according to the present invention.

[0031] Figure 2 yes Figure 1 Top view of the .

[0032] Figure 3 yes Figure 2 Enlarged left view of .

[0033] Figure 4 yes Figure 1 An enlarged view of the structure of the middle end surface detection unit 200.

[0034] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle straight edge positioning 300 and the vertical pressing unit 500.

[0035] Figure 6 yes Figure 1Schematic diagram of the structure of the middle positioning unit 400 and the vertical pressing unit 500.

[0036] Figure 7 yes Figure 1 A schematic diagram of the structure of the middle and outer shape detection unit 600.

[0037] Figure 8 yes Figure 1 A schematic structural diagram of the trimming shape detection unit 700.

[0038] Fig. 9 It is a schematic diagram of the detection state of the axle housing body 800 by a rapid automatic positioning detection device for the axle housing body of the present invention.

[0039] Fig.10 The present invention is a schematic diagram of the data collection arrangement of a rapid automatic positioning detection device for a bridge housing body.

[0040] Fig.11 It is a schematic diagram of a data processing device unit of a rapid automatic positioning detection device for a bridge housing body of the present invention.

[0041] Fig.12 yes Figure 1 Schematic diagram of the structure of the center-through stop gauge assembly 1000.

[0042] In the figure: base 100, end face detection unit 200, straight edge positioning 300, intermediate positioning 400, vertical clamping unit 500, shape detection unit 600, trimming shape detection unit 700, bridge housing body 800, switch assembly 900, go / no-go gauge assembly 1000, calibrator 1100, end cylinder 1, fixed seat 2, guide rod 3, guide rod seat 4, end face stop block 5, length detection seat 6, dial indicator 7, vertical cylinder 8, vertical pull rod 9, turn pin 10, movable rod seat 11, movable pull rod 12, fixed block 13, straight edge pressure rod 14, pressure head 15, horizontal cylinder 16, horizontal cylinder fixed seat 17, straight edge support seat 18, vertical clamping fixed seat 19, intermediate pressure rod 20, intermediate support rod 21, intermediate arc positioning block 22, intermediate support member 23, shape detection block 25, movable connecting rod 26 , handle 27, tightening bolt 28, movable support 29, shape detection fixed seat 30, rotating shaft 31, angle connecting piece 32, straight edge detection block 33, bevel edge detection block 34, user management module 35, report generation module 36, abnormal warning module 37, data processing module 38, data acquisition module 39, data processing interface 40, vertical direction clamping data acquisition point 41, workpiece straight edge data acquisition point 42, workpiece length data collection point 43, horizontal direction clamping data collection point 44, workpiece bevel edge data collection point 45, shape single side data collection point 46, middle bottom plate 221, middle circular arc front plate 222, middle circular arc rear plate 223, longitudinal plate 321, inclined plate 322, go / no-go gauge 1001, go / no-go gauge fixed bottom plate 1002, go / no-go gauge fixed inclined plate 1003, go / no-go gauge fixed vertical plate 1004. DETAILED DESCRIPTION

[0043] The present invention is further described below by means of the accompanying drawings and embodiments: Example: See Figure 1-Figure 12 , The present invention discloses a rapid automatic positioning detection device for a bridge housing body, such as Figure 1 An axonometric view of the detection device is shown, which includes a base 100, an end surface detection unit 200 for detecting the distance between the end surfaces of the bridge housing body 800, a straight edge positioning 300, an intermediate positioning 400 and a vertical pressing unit 500.

[0044] Further, such as Figure 4 , Figure 5 , Figure 6As shown, the end face detection unit 200 is fixed at both ends of the top of the base 100 for detecting the end face parallelism and deviation of the bridge housing body 800. The end face detection unit 200 includes an end cylinder 1, a fixing seat 2, a guide rod 3, a guide rod seat 4, an end face stop block 5, a length detection seat 6 and a dial indicator 7. The cylinder body of the end cylinder 1 is fixed to the outer wall of the fixing seat 2, the output end of the end cylinder 1 is connected to the outer end of the guide rod 3, and the inner end of the guide rod 3 passes through the inner hole of the guide rod seat 4 and is connected to the middle part of the outer wall of the end face stop block 5; the dial indicator 7 is fixed on the length detection seat 6, and a protruding block is provided on one side of the end face stop block 5. The needle of the dial indicator 7 can pass through the protruding block, and the end of the needle of the dial indicator 7 is flush with the inner wall of the protruding block. Fig. 9 The diagram shows the detection status of a bridge housing body using a rapid automatic positioning detection device for a bridge housing body of the present invention, wherein the inner wall of the end face detection unit 200 contacts the two ends of the bridge housing body 800; when the end cylinder 1 drives the inner wall of the end face stop block 5 to contact the end face of the bridge housing body 800, the distance between the needles of the dial indicators 7 on both sides is the length of the bridge housing body 800; and by setting the protruding blocks, it can be ensured that the dial indicators 7 on both sides will not be blocked when measuring distance.

[0045] The top sides and the middle of the base 100 are respectively provided with straight-side support seats 18 and middle support rods 21 for supporting the bottom sides and the middle of the bridge housing body 800; Figure 1 , Figure 2 As shown, the straight edge positioning 300 and the middle positioning 400 are respectively used to position the straight edge and the middle of the bridge shell body 800, and the straight edge positioning 300 and the middle positioning 400 are pressed against the straight edge and the middle top of the bridge shell body 800 through the vertical clamping unit 500. The device enables the workpiece to quickly perform self-positioning through the end face detection unit 200, the straight edge positioning 300, the middle positioning 400 and the vertical clamping unit 500, so that the bridge shell body in a single-piece state is automatically adjusted to the detection reference, thereby realizing rapid detection of multiple items of stamped bridge shell body parts.

[0046] Further, such as Figure 1 , Figure 5As shown, the straight edge positioning 300 includes a pressure rod 14, a pressure head 15, a horizontal cylinder 16, a horizontal cylinder fixing seat 17 and a straight edge support seat 18. The pressure rod 14 is an inverted "concave" shaped structure, and the middle of its top end is connected to the bottom of the vertical clamping unit 500. The bottom ends of both sides of the pressure rod 14 can be tightly contacted with the top of the straight edge of the bridge shell body 800. The two straight edge support seats 18 are in an inverted "T" shaped structure, and their bottom ends are fixed to the top of the base 100, and their top ends are located below the bottom end of the pressure rod 14; the horizontal cylinder fixing seat 17 is an "L" shaped structure, and its bottom is fixed to the front of the straight edge of the bridge shell body 800. The cylinder 16 is fixed to the front wall of the horizontal cylinder fixing seat 17, and the output end of the horizontal cylinder 16 passes through the outer wall of the horizontal cylinder fixing seat 17 and is fixedly connected to the front end face of the pressure head 15. The rear end face of the pressure head 15 can be tightly contacted with the straight-edge front wall of the bridge housing body 800. The bottom ends of both sides of the pressure rod 14 are pressed against the top of the straight edge of the bridge housing body 800 through the vertical pressing unit 500, and the bottom of the straight edge of the bridge housing body 800 is supported by two straight-edge support seats 18, so that the pressure at the bottom end of the pressure rod 14 acts on the top of the straight-edge support seat 18, ensuring that the pressure of the pressure rod 14 will not cause damage to the top of the bridge housing body 800.

[0047] Further, such as Figure 1 ,like Figure 6As shown, the intermediate positioning 400 includes an intermediate pressure rod 20, an intermediate support rod 21, an intermediate arc positioning block 22 and an intermediate support member 23. The intermediate support member 23 is an inverted "T"-shaped structure, and its bottom is fixed to the middle front of the bridge housing body 800. The intermediate arc positioning block 22 includes an intermediate bottom plate 221, an intermediate arc front plate 222 and an intermediate arc rear plate 223. The intermediate bottom plate 221 is fixed to the top of the intermediate support member 23. The bottoms of the intermediate arc front plate 222 and the intermediate arc rear plate 223 are respectively fixed to the top front end and the top rear end of the intermediate bottom plate 221. The upper surfaces of the intermediate arc front plate 222 and the intermediate arc rear plate 223 are an arc-shaped structure with a middle protrusion. The intermediate support rod 21 is a square structure, and its bottom end passes through the intermediate bottom plate. The middle part of 221 is connected to the top of the intermediate support member 23; the intermediate pressure rod 20 is a square structure, and its top end is connected to the bottom of the vertical clamping unit 500. The bottom end of the intermediate pressure rod 20 can be tightly contacted with the middle top of the bridge shell body 800. The bottom end of the intermediate pressure rod 20 is driven by the vertical clamping unit 500 to be pressed against the middle top of the bridge shell body 800, and the middle bottom of the bridge shell body 800 is supported by the top of the intermediate support rod 21, so that the pressure of the bottom end of the intermediate pressure rod 20 acts on the top of the intermediate support rod 21, ensuring that the pressure of the intermediate pressure rod 20 will not cause damage to the top of the bridge shell body 800; in addition, the arc surfaces at the top of the middle arc front plate 222 and the middle arc rear plate 223 coincide with the lute hole at the middle bottom of the bridge shell body 800.

[0048] Further, such as Figure 5 , Figure 6As shown, the vertical clamping unit 500 includes a vertical cylinder 8, a vertical tie rod 9, a rotating pin 10, a movable rod seat 11, a movable tie rod 12, a fixed block 13 and a vertical clamping fixed seat 19, wherein the vertical clamping fixed seat 19 is fixed to the top rear side of the base 100, the fixed block 13 is fixed to a side wall of the vertical clamping fixed seat 19, the cylinder body of the vertical cylinder 8 is fixed below the rear wall of the fixed block 13, the top end of the piston rod of the vertical cylinder 8 is connected to the vertical tie rod 9, the upper part of the outer wall of the vertical tie rod 9 is provided with a rotating pin 10 hinged to the rear end of the movable tie rod 12, the top rear end of the fixed block 13 is connected to the movable rod seat 11 in a yoke-shaped structure. 1 is hinged at the bottom end, the inner walls on both sides of the top of the movable rod seat 11 are fixedly connected to the rear sides of the side walls of the movable pull rod 12, and the tops of the pressure rod 14 and the intermediate pressure rod 20 are respectively fixedly connected to the front end bottom of the movable pull rod 12. When the vertical clamping unit 500 is working, the switch assembly 900 turns on the vertical cylinder 8, and the piston rod of the vertical cylinder 8 extends upward to drive the rear end of the movable pull rod 12 to move upward. Since the rear side of the bottom of the movable pull rod 12 is hinged to the rear end top of the fixed block 13 through the movable rod seat 11, due to the lever principle, the front end of the movable pull rod 12 can drive the pressure rod 14 or the intermediate pressure rod 20 to move downward, and press the straight edge top or the middle top of the bridge housing body 800.

[0049] Further, such as Figure 7As shown, it also includes a shape detection unit 600, which includes a shape detection block 25, a movable connecting rod 26, a handle 27, a tightening bolt 28, a movable support 29, a shape detection fixed seat 30, a rotating shaft 31 and an angle connecting member 32, the bottom of the shape detection fixed seat 30 is fixed to the upper surface of the base 100, and the angle connecting member 32 includes a longitudinal plate 321 and an inclined plate 322, the bottom inner wall of the longitudinal plate 321 is fixedly connected to the upper outer wall of the shape detection fixed seat 30, the bottom end of the inclined plate 322 is connected to the top of the longitudinal plate 321, the top of the inclined plate 322 is inclined upward, and the slope of the inclined plate 322 is the same as the slope of the hypotenuse of the bridge housing body 800, and the bottom of the movable support 29 is fixed to the inclined plate 3 22, the rotating shaft 31 for being hinged to the front end of the movable link 26 is provided between the inner walls of the yoke-shaped structure formed on the top of the movable support 29, the rear end bottom of the movable link 26 is connected to the middle of the top of the outer wall of the shape detection block 25, the top rear side of the movable link 26 is provided with the handle 27, the top rear side of the movable support 29 is provided with a threaded hole for matching with the external thread of the tightening bolt 28, when working, by tightening the tightening bolt 28 and the threaded hole on the top rear side of the movable support 29, the shape detection block 25 connected to the rear end bottom of the movable link 26 can be driven to press against the inclined surface of the bridge housing body 800, because the slope of the inclined plate 322 is the same as the slope of the hypotenuse of the bridge housing body 800, the shape detection block 25 can fit with the inclined surface of the bridge housing body 800.

[0050] Further, such as Figure 8 As shown, it also includes a trimming shape detection unit 700, which includes a plurality of straight edge detection blocks 33 and bevel edge detection blocks 34. The distance between the inner wall of the front straight edge detection block 33 and the inner wall of the rear straight edge detection block 33 is equal to the distance between the inner walls of the middle arc positioning block 22; the distance between the inner wall of the front bevel edge detection block 34 and the inner wall of the rear bevel edge detection block 34 is equal to the distance between the inner walls of the middle arc positioning block 22; the straight edge detection block 33 and the bevel edge detection block 34 are equal to the distance between the inner walls of the middle arc positioning block 22. The bottom of the measuring block 34 is fixed to the top of the base 100, the height of the outer end of the bevel detection block 34 is equal to the height of the straight edge detection block 33, the height of the inner end of the bevel detection block 34 is equal to the height of the outer end of the middle arc front plate 222, and the straight edge detection blocks 33 and the tops of the bevel detection blocks 34 on both sides are placed on both sides of the bottom of the bridge housing body 800. The lengths of various parts of the bridge housing body 800 can be measured through the collection points on the front and rear sides of the tops of the straight edge detection blocks 33 and the bevel detection blocks 34.

[0051] Further, such as Fig.10As shown, a vertical direction pressing data collection point 41 is provided at the top outer end of the fixed block 13. The vertical direction pressing data collection point 41 is a distance sensor fixed to the top outer end of the fixed block 13, and is used to measure the distance between the top of the fixed block 13 and the bottom of the movable pull rod 12; A workpiece straight edge data collection point 42 and a workpiece bevel edge data collection point 45 are respectively provided at the top of the straight edge detection block 33 and the bevel edge detection block 34. The workpiece straight edge data collection point 42 is composed of distance measuring sensors arranged at the front end and the rear end of the top of the straight edge detection block 33, and the workpiece bevel edge data collection point 45 is composed of distance measuring sensors arranged at the front end and the rear end of the top of the bevel edge detection block 34. The workpiece straight edge data collection point 42 and the workpiece bevel edge data collection point 45 can detect the lengths of the straight edge and the bevel edge of the bridge housing body 800 placed on the top of the straight edge detection block 33 and the bevel edge detection block 34. The inner wall of the end face stopper 5 is provided with a workpiece length data collection point 43. The data collected at the workpiece length data collection point 43 is the distance between the needles of the dial indicators 7 on both sides after they pass through the protruding blocks on the side of the end face stopper 5, which is the total length of the entire bridge housing body 800. The pressure head 15 is provided with a horizontal compression data collection point 44, which can detect the width of the straight edge of the bridge shell body 800; the shape detection block 25 is provided with a single-side shape data collection point 46, which detects the slope and shape of the hypotenuse of the bridge shell body 800; the data of all the above collection points are transmitted to the data processing module 38 for comparison with the modeling, so as to obtain the error of the produced bridge shell body 800.

[0052] Further, such as Fig.11 As shown, it also includes a data processing device, the data processing device includes a data acquisition module 39, a data processing module 38, an abnormal warning module 37 and a report generation module 36, the vertical direction pressing data acquisition point 41, the workpiece straight edge data acquisition point 42, the workpiece length data acquisition point 43, the horizontal direction pressing data acquisition point 44, the workpiece bevel edge data acquisition point 45 and the shape single side data acquisition point 46 are respectively connected to the data acquisition module 39, the data acquisition module 39, the data processing module 38 and the abnormal warning module 37 are connected in turn, the data processing module 38 and the abnormal warning module 37 are respectively connected to the report generation module 36, the data acquisition module 39: establishes a connection with the bridge housing body 800 detection device data processing interface 40 through serial communication, network communication or USB interface, and collects various parameter values ​​output by the detection device in real time. Such as half side length, straight seam gap, upper and lower misalignment, misalignment, end face parallelism, shape size and trimming shape.

[0053] Data processing module 38: cleans, calibrates, calculates and statistically analyzes the collected data. Mathematical algorithms such as the least squares method are used to calibrate the data, and statistical analysis methods such as standard deviation are used to evaluate the degree of dispersion of the data to ensure the accuracy of the processing results.

[0054] Abnormal warning module 37: judges the processed data according to the preset threshold or standard. Once an abnormal value or parameter that does not meet the requirements is found, the warning mechanism is immediately triggered, and warning prompts are given through sound, light, pop-up window, etc., and abnormal information is recorded.

[0055] Report generation module 36: automatically generates a test report based on the processed data and warning results. The report content includes the test results, abnormal information, treatment suggestions, etc., and is provided to the tester in the form of electronic documents or printouts.

[0056] It also includes a user management module 35: manages the users of the software system, including functions such as user registration, login, and authority allocation. It uses database technology to store user information and implements access isolation and data protection between different users through role and authority control mechanisms.

[0057] Further, such as Figure 1 and Fig.12As shown, a switch assembly 900, a go / no-go gauge assembly 1000 and a calibrator 1100 are fixed to the top front end of the base 100, and the switch assembly 900 is electrically connected to the end cylinder 1, the horizontal cylinder 16 and the vertical cylinder 8 respectively; the go / no-go gauge assembly 1000 includes a go / no-go gauge 1001, a go / no-go gauge fixed bottom plate 1002, a go / no-go gauge fixed inclined plate 1003 and a go / no-go gauge fixed vertical plate 1004, the go / no-go gauge fixed bottom plate 1002 is fixed to the top of the base 100, the bottom ends of the two go / no-go gauge fixed inclined plates 1003 are connected to the tops of both ends of the go / no-go gauge fixed bottom plate 1002, the top ends of the go / no-go gauge fixed inclined plates 1003 on both sides are inclined toward the middle, and the top ends of the go / no-go gauge fixed vertical plates 1004 are connected to the go / no-go gauge fixed bottom plate 1002. The top of the inclined plate 1003 is connected, and the distance between the inner walls of the vertical plates 1004 for fixing the go / no-go gauge on both sides is smaller than the width of the middle part of the go / no-go gauge 1001. When the go / no-go gauge 1001 is inserted between the vertical plates 1004 for fixing the go / no-go gauge on both sides, since the gap between the vertical plates 1004 for fixing the go / no-go gauge on both sides is smaller than the width in the middle of the go / no-go gauge 1001, the vertical plates 1004 for fixing the go / no-go gauge on both sides can clamp the go / no-go gauge 1001 to avoid the loss of the go / no-go gauge 1001 and facilitate the use of the go / no-go gauge 1001. The go / no-go gauge 1001 includes round and square go / no-go gauges, etc., which are used to detect the gaps between the bridge housing body 800 and the straight edge detection block 33, the bevel edge detection block 34, and the shape detection block 25, so as to conveniently and intuitively determine whether each detection item is qualified. The calibrator 1100 is fixed on the base 100. The dial gauge 7 can be quickly calibrated to zero through the calibrator 1100. The dial gauge after zero calibration can be directly used for measurement, and the measurement result is the deviation value.

[0058] The method of using the detection device of the present invention is as follows: 1. Testing and data processing are carried out simultaneously: Step 1: Preparation and startup of the detection system: Connect the detection device to the air source; the data acquisition module 39 is connected to the vertical direction pressing data acquisition point 41, the workpiece straight edge data acquisition point 42, the workpiece length data acquisition point 43, the horizontal direction pressing data acquisition point 44, the workpiece bevel edge data acquisition point 45 and the shape single edge data acquisition point 46, respectively, to prepare for real-time acquisition of various parameter values ​​during the detection process; Step 2: Placement and positioning of the bridge housing body 800: The stamped single-piece bridge housing body 800 is placed into the testing device and supported and fixed by the straight-edge support seat 18 and the middle support rod 21; The center is automatically positioned by the middle arc positioning block 22 to ensure that the single-piece bridge housing body 800 is in the correct detection position; Step 3: The bridge housing body 800 is pressed and the test benchmark is set: The control switch assembly 900 is turned on to start the detection process; The horizontal cylinder 16 extends out to fit the inner cavity of the side of the bridge housing body 800 with the outer side of the straight-edge support seat 18; The vertical cylinder 8 extends to press the movable pull rod 12 downward, driving the straight-side pressure rod 14 and the middle pressure rod 20 to press the bridge housing body 800; The end cylinders 1 on both sides extend out, and the guide rods 3 drive the end surface stoppers 5 to fit the two ends of the bridge housing body 800. At this time, the bridge housing body 800 is in the detection reference state; The data acquisition module 39 collects the displacement, pressure and other parameter values ​​of each cylinder in real time and inputs them into the data processing module 38 for preliminary processing; Step 4: Gap detection and real-time data processing The go / no-go gauge assembly 1000 detects the gaps between the bridge housing body 800 and the straight edge detection block 33, the bevel edge detection block 34, and the shape detection block 25; The data processing module 38 cleans, calibrates and calculates the collected gap data to obtain the actual gap value; The actual gap value is compared with the preset qualified range. Once an abnormal value is found, the abnormal warning module 37 is immediately triggered to issue a warning prompt; Step 5: Length deviation measurement and real-time data processing: After the dial indicator 7 is zeroed by the calibrator 1100, the needle of the dial indicator 7 passes through the outer end surface of the inner hole measuring end surface stop block 5 corresponding to the length detection seat 6; The data processing module 38 collects the readings of the dial gauge in real time and calculates the length deviation value; The length deviation value is compared with the preset allowable deviation range. Once an abnormal value is found, the abnormal warning module 37 is immediately triggered to issue a warning prompt.

[0059] Step 6: Detection completion and data processing: The control switch assembly 900 is closed, and the release process of the detection device is started; The end cylinders 1 on both sides retract and drive the end surface stop blocks 5 to retreat; The vertical cylinder 8 drives the straight-side pressure rod 14 and the middle pressure rod 20 to loosen; The horizontal cylinder 16 retracts to release the bridge housing body 800, and the workpiece can be taken out at this time; The data processing module 38 performs statistical analysis on the data collected during the entire detection process and generates a detailed detection report; According to the early warning results and statistical analysis results, the report generation module 36 automatically generates an electronic document or a printed output test report and provides it to the tester; (II) User management and data security:

[0060] User management module 35: performs operations such as user registration, login and authority allocation to ensure the security and stability of the software system.

[0061] Data security module: Encrypt the stored and transmitted data to prevent data leakage and tampering.

[0062] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings or directly or indirectly applied in related technical fields are also included in the patent protection scope of the present invention.

Claims

1. A rapid automatic positioning detection device for axle housing body, characterized in that: The invention comprises a base (100), an end face detection unit (200) for detecting the distance between the end faces of a bridge housing body (800), a straight edge positioning unit (300), an intermediate positioning unit (400) and a vertical pressing unit (500), The top sides and middle of the base (100) are respectively provided with straight edge support seats (18) and middle support rods (21) for supporting the bottom sides and middle of the bridge housing body (800); the end face detection unit (200) is fixed to the top two ends of the base (100); the straight edge positioning (300) and the middle positioning (400) are respectively used to position the straight edge and the middle of the bridge housing body (800), and the straight edge positioning (300) and the middle positioning (400) are pressed against the straight edge and the middle top of the bridge housing body (800) through the vertical clamping unit (500).

2. The rapid automatic positioning detection device for axle housing body according to claim 1, characterized in that: The end face detection unit (200) comprises an end cylinder (1), a fixed seat (2), a guide rod (3), a guide rod seat (4), an end face stop block (5), a length detection seat (6) and a dial indicator (7); the cylinder body of the end cylinder (1) is fixed to the outer wall of the fixed seat (2); the output end of the end cylinder (1) is connected to the outer end of the guide rod (3); the inner end of the guide rod (3) passes through the inner hole of the guide rod seat (4) and is connected to the middle part of the outer wall of the end face stop block (5); the dial indicator (7) is fixed to the length detection seat (6); a protruding block is provided on one side of the end face stop block (5); and the needle of the dial indicator (7) can pass through the protruding block.

3. The rapid automatic positioning detection device for axle housing body according to claim 2, characterized in that: The straight edge positioning (300) comprises a pressure rod (14), a pressure head (15), a horizontal cylinder (16), a horizontal cylinder fixing seat (17) and a straight edge support seat (18). The pressure rod (14) is in an inverted "concave" shape, and the middle of its top end is connected to the bottom of the vertical clamping unit (500). The bottom ends of both sides of the pressure rod (14) can be in tight contact with the top of the straight edge of the bridge housing body (800). The two straight edge support seats (18) are in an inverted "T" shape, and their bottom ends are fixed to the top of the base (100). The end is located below the bottom end of the pressure rod (14); the horizontal cylinder fixing seat (17) is in an "L"-shaped structure, and its bottom is fixed in front of the straight edge of the bridge housing body (800); the horizontal cylinder (16) is fixed to the front wall of the horizontal cylinder fixing seat (17); the output end of the horizontal cylinder (16) passes through the outer wall of the horizontal cylinder fixing seat (17) and is fixedly connected to the front end face of the pressure head (15); the rear end face of the pressure head (15) can be in tight contact with the straight front wall of the bridge housing body (800).

4. The rapid automatic positioning detection device for axle housing body according to claim 3, characterized in that: The intermediate positioning (400) comprises an intermediate pressure rod (20), an intermediate support rod (21), an intermediate arc positioning block (22) and an intermediate support member (23); the intermediate support member (23) is in an inverted "T"-shaped structure, the bottom of which is fixed to the middle front of the bridge housing body (800); the intermediate arc positioning block (22) comprises an intermediate bottom plate (221), an intermediate arc front plate (222) and an intermediate arc rear plate (223); the intermediate bottom plate (221) is fixed to the top of the intermediate support member (23); the intermediate arc front plate (222) and the intermediate arc rear plate (223) are fixed to the top of the intermediate support member (23); The bottom of the intermediate bottom plate (221) is respectively fixed to the top front end and the top rear end of the intermediate bottom plate (221); the upper surfaces of the intermediate circular arc front plate (222) and the intermediate circular arc rear plate (223) are in the shape of an arc with a central protrusion; the intermediate support rod (21) is in a square structure, the bottom end of which passes through the middle of the intermediate bottom plate (221) and is connected to the top of the intermediate support member (23); the intermediate pressure rod (20) is in a square structure, the top end of which is connected to the bottom of the vertical clamping unit (500), and the bottom end of the intermediate pressure rod (20) can be in tight contact with the middle top of the bridge housing body (800).

5. The rapid automatic positioning detection device for axle housing body according to claim 4, characterized in that: The vertical pressing unit (500) comprises a vertical cylinder (8), a vertical pull rod (9), a rotating pin (10), a movable rod seat (11), a movable pull rod (12), a fixing block (13) and a vertical pressing fixing seat (19), wherein the vertical pressing fixing seat (19) is fixed to the top rear side of the base (100), the fixing block (13) is fixed to a side wall of the vertical pressing fixing seat (19), the cylinder body of the vertical cylinder (8) is fixed to the lower rear wall of the fixing block (13), and the vertical cylinder (8 ) is connected to the top end of the piston rod of the movable rod (12), a rotating pin (10) is provided on the upper side of the outer wall of the movable rod (12) and is hinged to the rear end of the movable rod (12), the rear end of the top of the fixed block (13) is hinged to the bottom end of the movable rod seat (11) in a yoke-shaped structure, the inner walls on both sides of the top of the movable rod seat (11) are fixedly connected to the rear side of the side wall of the movable rod (12), and the tops of the pressure rod (14) and the intermediate pressure rod (20) are respectively fixedly connected to the bottom of the front end of the movable rod (12).

6. The rapid automatic positioning detection device for axle housing body according to claim 5, characterized in that: The device also includes a shape detection unit (600), the shape detection unit (600) including a shape detection block (25), a movable connecting rod (26), a handle (27), a tightening bolt (28), a movable support (29), a shape detection fixing seat (30), a rotating shaft (31) and an angle connecting member (32), the bottom of the shape detection fixing seat (30) is fixed to the upper surface of the base (100), the angle connecting member (32) includes a longitudinal plate (321) and an inclined plate (322), the bottom inner wall of the longitudinal plate (321) is fixedly connected to the upper outer wall of the shape detection fixing seat (30), the bottom end of the inclined plate (322) is connected to the top end of the longitudinal plate (321), and the angle connecting member (322) is connected to the upper end of the longitudinal plate (321). The top of the inclined plate (322) is arranged to be inclined upward, and the slope of the inclined plate (322) is the same as the slope of the hypotenuse of the bridge housing body (800). The bottom of the movable support (29) is fixed to the upper surface of the inclined plate (322). The rotating shaft (31) for being hinged to the front end of the movable link (26) is provided between the inner walls of the yoke-shaped structure formed at the top of the movable support (29). The bottom of the rear end of the movable link (26) is connected to the middle of the top of the outer wall of the shape detection block (25). The handle (27) is provided on the rear side of the top of the movable link (26). The rear side of the top of the movable support (29) is provided with a threaded hole for matching the external thread of the tightening bolt (28).

7. The rapid automatic positioning detection device for axle housing body according to claim 6, characterized in that: It also includes a trimming shape detection unit (700), the trimming shape detection unit (700) including a plurality of straight edge detection blocks (33) and bevel edge detection blocks (34), the distance between the inner walls of the front straight edge detection block (33) and the rear straight edge detection block (33) being equal to the distance between the inner walls of the middle circular arc positioning block (22); the distance between the inner walls of the front bevel edge detection block (34) and the rear bevel edge detection block (34) being equal to the distance between the inner walls of the middle circular arc positioning block (22); the bottoms of the straight edge detection block (33) and the bevel edge detection block (34) being fixed to the top of the base (100), the height of the outer end of the bevel edge detection block (34) being equal to the height of the straight edge detection block (33), and the height of the inner end of the bevel edge detection block (34) being equal to the height of the outer end of the middle circular arc front plate (222).

8. The rapid automatic positioning detection device for axle housing body according to claim 7, characterized in that: A vertical direction clamping data acquisition point (41) is provided at the top outer end of the fixed block (13). The vertical direction clamping data acquisition point (41) is a distance sensor fixed to the top outer end of the fixed block (13) and is used to measure the distance between the top of the fixed block (13) and the bottom of the movable pull rod (12). A workpiece straight edge data acquisition point (42) and a workpiece bevel edge data acquisition point (45) are provided at the top of the straight edge detection block (33) and the bevel edge detection block (34), respectively. The workpiece straight edge data acquisition point (42) is composed of distance measuring sensors arranged at the top front end and the top rear end of the straight edge detection block (33). The workpiece bevel edge data acquisition point (45) is composed of distance measuring sensors arranged at the top front end and the top rear end of the bevel edge detection block (34). A workpiece length data acquisition point (43) is provided on the inner wall of the end face stop block (5). A horizontal direction data acquisition point (43) is provided on the pressure head (15). The invention also comprises a compression data collection point (44) in the vertical direction; a single-side shape data collection point (46) is provided on the shape detection block (25); and a data processing device is also included, the data processing device comprising a data collection module (39), a data processing module (38), an abnormal warning module (37) and a report generation module (36); the vertical compression data collection point (41), the workpiece straight edge data collection point (42), the workpiece length data collection point (43), the horizontal compression data collection point (44), the workpiece bevel edge data collection point (45) and the single-side shape data collection point (46) are respectively connected to the data collection module (39); the data collection module (39), the data processing module (38) and the abnormal warning module (37) are connected to each other in sequence; and the data processing module (38) and the abnormal warning module (37) are respectively connected to the report generation module (36).

9. The rapid automatic positioning detection device for axle housing body according to claim 8, characterized in that: A switch assembly (900), a go / no-go gauge assembly (1000) and a calibrator (1100) are fixed to the top front end of the base (100); the switch assembly (900) is electrically connected to the end cylinder (1), the horizontal cylinder (16) and the vertical cylinder (8) respectively; the go / no-go gauge assembly (1000) comprises a go / no-go gauge (1001), a go / no-go gauge fixing base plate (1002), a go / no-go gauge fixing inclined plate (1003) and a go / no-go gauge fixing vertical plate (1004); the go / no-go gauge fixing base plate (1002 ...) 02) is fixed on the top of the base (100), the bottom ends of the two go / no-go gauge fixing inclined plates (1003) are connected to the tops of the two ends of the go / no-go gauge fixing bottom plate (1002), the top ends of the go / no-go gauge fixing inclined plates (1003) on both sides are inclined toward the middle, the top ends of the go / no-go gauge fixing vertical plates (1004) are connected to the top ends of the go / no-go gauge fixing inclined plates (1003), and the distance between the inner walls of the go / no-go gauge fixing vertical plates (1004) on both sides is smaller than the width of the middle of the go / no-go gauge (1001).

10. A method for using the rapid automatic positioning detection device for axle housing body according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Preparation and startup of the detection system: The detection device is connected to an air source; the data acquisition module (39) is connected to a vertical direction pressing data acquisition point (41), a workpiece straight edge data acquisition point (42), a workpiece length data acquisition point (43), a horizontal direction pressing data acquisition point (44), a workpiece bevel edge data acquisition point (45) and a shape single edge data acquisition point (46), respectively, to prepare for real-time acquisition of various parameter values ​​during the detection process; Step 2: Place and position the bridge housing (800): The stamped single-piece bridge housing body (800) is placed in a testing device and supported and fixed by a straight-edge support seat (18) and an intermediate support rod (21); Automatic center positioning is performed through the middle arc positioning block (22) to ensure that the single-piece bridge housing body (800) is in a correct detection position; Step 3: The bridge housing body (800) is pressed and the test reference is set: The control switch assembly (900) is turned on to start the detection process; The horizontal cylinder (16) extends to fit the inner cavity of the side of the bridge housing body (800) with the outer side of the straight-edge support seat (18); The vertical cylinder (8) extends to press the movable pull rod (12) downward, driving the straight-side pressure rod (14) and the middle pressure rod (20) to press the bridge housing body (800); The end cylinders (1) on both sides extend out, and the guide rods (3) drive the end surface stop blocks (5) to fit the two ends of the bridge housing body (800). At this time, the bridge housing body (800) is in a detection reference state; The data acquisition module (39) collects the displacement, pressure and other parameter values ​​of the end cylinder (1), the vertical cylinder (8) and the horizontal cylinder (16) in real time, and inputs the values ​​into the data processing module (38) for preliminary processing; Step 4: Gap detection and real-time data processing: The go / no-go gauge assembly (1000) detects the gaps between various locations of the bridge housing body (800) and the straight edge detection block (33), the bevel edge detection block (34) and the shape detection block (25); The data processing module (38) cleans, calibrates and calculates the collected gap data to obtain an actual gap value; The actual gap value is compared with the preset qualified range, and once an abnormal value is found, the abnormal warning module (37) is immediately triggered to issue a warning prompt; Step 5: Length deviation measurement and real-time data processing: After the dial indicator (7) is zeroed by the calibrator (1100), the needle of the calibrator (1100) passes through the outer end surface of the inner hole measuring end surface stopper (5) corresponding to the length detection seat (6); The data processing module (38) collects the reading of the dial gauge in real time and calculates the length deviation value; The length deviation value is compared with the preset allowable deviation range, and once an abnormal value is found, the abnormal warning module (37) is immediately triggered to issue a warning prompt; Step 6: Detection completion and data processing: The control switch assembly (900) is closed, and a release process of the detection device is started; The end cylinders (1) on both sides retract and drive the end surface stop blocks (5) to retreat; The vertical cylinder (8) drives the straight-side pressure rod (14) and the middle pressure rod (20) to loosen; The horizontal cylinder (16) retracts to release the axle housing body (800), and the axle housing body (800) can be removed at this time; The data processing module (38) performs statistical analysis on the data collected during the entire detection process and generates a detailed detection report; Based on the warning results and statistical analysis results, a test report in the form of an electronic document or a printed output is automatically generated by a report generation module (36) and provided to the tester.

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