A rapid automatic positioning detection device for axle housing body and its use method

Abstract

This invention relates to the field of automotive component processing technology, and particularly to a rapid automatic positioning and inspection device and method for axle housing bodies. The device includes a base, an end face inspection unit, a straight edge positioning unit, a center positioning unit, and a vertical clamping unit. The base has straight edge support seats and a center support rod on its top two sides and center, respectively, for supporting the bottom two sides and center of the axle housing body. The end face inspection unit is fixed to both ends of the top of the base to inspect the parallelism and deviation of the end faces of the axle housing body. The straight edge positioning unit and the center positioning unit are used to position the straight edges and center of the axle housing body, respectively. The straight edge positioning unit and the center positioning unit clamp the axle housing body using the vertical clamping unit. This invention has the functions of quickly self-positioning the workpiece and providing intuitive and rapid inspection results, enabling the single-piece axle housing body to automatically adjust to the inspection reference, and achieving rapid inspection of multiple items on stamped axle housing body parts.

Description

Technical Field

[0001] This invention relates to the field of automotive component processing technology, and in particular to a rapid automatic positioning and detection device and its method for use for axle housing bodies. Background Technology

[0002] The axle housing is a crucial component of the vehicle's running gear system. It not only bears the weight of the vehicle itself but also withstands various reaction forces, bending moments, and braking torques from the drive wheels during operation. Stamped and welded axle housings are a common type of axle housing assembly, manufactured by stamping and then welding together two separate axle housing pieces. The single-piece axle housing, i.e., the axle housing component after stamping and before welding, is the fundamental component of the axle housing assembly.

[0003] To ensure that the axle housing assembly meets design and performance requirements, rigorous testing of the geometric dimensions, shape accuracy, and surface quality of the stamped axle housing body is crucial during the manufacturing process. These tests typically include measurements such as half-side length, straight seam clearance, misalignment of upper and lower edges, misalignment of angles, and flatness of the large flange surface. Through these tests, quality issues during production can be identified and corrected promptly, preventing subsequent processing difficulties or substandard finished product performance caused by defects, thereby improving overall product quality and production efficiency.

[0004] Although there are various existing methods and devices for detecting bridge housing bodies and single-piece bridge housing bodies, the following shortcomings still exist:

[0005] For example, patent CN110701975A, entitled "A Pre-welding Inspection Device and Method for Bridge Housing Body," describes a device that positions the bridge housing body using a central positioning assembly and positioning devices in multiple directions, and performs various inspections using a half-length inspection unit and a flatness inspection unit. However, this device primarily targets the positioning and inspection of the upper and lower bridge housing bodies before welding, and it falls short in providing rapid and automatic positioning and inspection for single bridge housing bodies.

[0006] The patent with publication number CN204902724U provides a bridge housing inspection tool, but this tool is mainly used to measure the center position of the bridge housing, and its function is relatively simple, which cannot meet the needs of comprehensive inspection of the bridge housing body.

[0007] The patent with publication number CN209470640U, although involving the measurement of the pipa hole under the bridge housing, has a relatively limited measurement range and purpose, and is not applicable to the comprehensive geometric parameter detection of the bridge housing body.

[0008] The patent with publication number CN204142448U focuses primarily on the airtightness testing of the bridge housing, rather than the geometric parameters and shape testing of the bridge housing itself.

[0009] The patent with publication number CN107081622A provides a quick positioning and clamping device for drilling and tapping vent holes in the rear axle housing of an automobile. Although it involves positioning and clamping technology, it is not for comprehensive testing of the axle housing body.

[0010] The patent with publication number CN102581051A, although involving a cold extrusion molding method and a compression molding machine for the bridge housing piping hole, is not directly related to the testing method and device for the bridge housing body.

[0011] Existing technologies have shortcomings in the rapid and automated positioning and inspection of bridge housing bodies and individual bridge housing bodies, mainly manifested in low inspection efficiency, inaccurate positioning, and the need for multiple clamping operations for multi-item inspections. These problems limit the application effectiveness of existing technologies in the bridge housing body production process and cannot meet the requirements for efficient, accurate, and comprehensive inspection.

[0012] In summary, while various inspection devices and methods exist for bridge housing bodies in the prior art, they still fall short in terms of rapid, automatic positioning and inspection of single-piece bridge housing bodies, especially after stamping. Existing inspection devices are either functionally limited or complex to operate, making it difficult to meet the demands of efficient and accurate inspection of bridge housing bodies on production lines. Therefore, developing a device capable of rapidly and automatically positioning and inspecting single-piece bridge housing bodies is of great significance for improving production efficiency and ensuring product quality. Summary of the Invention

[0013] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid automatic positioning and detection device and method for bridge housing body, so as to achieve efficient, accurate and comprehensive detection of single bridge housing body, and improve production efficiency and product quality.

[0014] To achieve the objectives of this invention, the technical solution adopted is as follows:

[0015] This invention discloses a rapid automatic positioning and detection device for an axle housing body, comprising a base, an end face detection unit for detecting the distance between the end faces of the axle housing body, a straight edge positioning unit, a center positioning unit, and a vertical clamping unit. The base has straight edge support seats and a center support rod on its top two sides and center, respectively, for supporting the bottom two sides and center of the axle housing body. The end face detection unit is fixed to both ends of the top of the base for detecting the parallelism and deviation of the end faces of the axle housing body. The straight edge positioning unit and the center positioning unit are used to position the straight edge and center of the axle housing body, respectively, and are clamped to the top of the straight edge and center of the axle housing body by the vertical clamping unit.

[0016] The end face detection unit includes an end cylinder, a fixed base, 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 base. The output end of the end cylinder is connected to the outer end of the guide rod. The inner end of the guide rod passes through the inner hole of the guide rod seat and connects to the middle of the outer wall of the end face stop block. The dial indicator is fixed on the length detection seat. A protrusion is provided on one side of the end face stop block, and the needle of the dial indicator can pass through the protrusion.

[0017] The straight-edge positioning includes a pressure rod, a pressure head, a horizontal cylinder, a horizontal cylinder mounting base, and a straight-edge support base. The pressure rod has an inverted "U" shape, with its top center connected to the bottom of the vertical pressing unit. The bottom ends of both sides of the pressure rod can be tightly contacted with the top of the straight edge of the axle housing body. The two straight-edge support bases have an inverted "T" shape, with their bottom ends fixed to the top of the base and their top ends located below the bottom end of the pressure rod. The horizontal cylinder mounting base has an "L" shape, with its bottom fixed to the front of the straight edge of the axle housing body. The horizontal cylinder is fixed to the front wall of the horizontal cylinder mounting base. The output end of the horizontal cylinder passes through the outer wall of the horizontal cylinder mounting base and is fixedly connected to the front end face of the pressure head. The rear end face of the pressure head can be tightly contacted with the front wall of the straight edge of the axle housing body.

[0018] 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 has an inverted "T" shape, and its bottom is fixed to the front center of the axle housing 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 front and rear ends of the top of the intermediate bottom plate. The upper surfaces of the intermediate arc front plate and the intermediate arc rear plate have an arc-shaped structure with a central convex shape. The intermediate support rod has a square structure, and its bottom end passes through the middle of the intermediate bottom plate and connects to the top of the intermediate support member. The intermediate pressure rod has a square structure, and its top end is connected to the bottom of the vertical pressing unit. The bottom end of the intermediate pressure rod can be in tight contact with the top center of the axle housing body.

[0019] The vertical clamping unit includes a vertical cylinder, a vertical pull rod, a pivot pin, a movable rod seat, a movable pull rod, a fixed block, and a vertical clamping fixing seat. The vertical clamping fixing seat is fixed to the top rear side of the base. The fixed block is fixed to one side wall of the vertical clamping fixing seat. The cylinder body of the vertical cylinder is fixed to the lower 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 pivot pin is provided on the upper outer wall of the vertical pull rod and hinged to the rear end of the movable pull rod. The top rear end of the fixed block is hinged to the bottom end of the movable rod seat, which has 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 wall of the movable pull rod. The tops of the pressure rod and the intermediate pressure rod are respectively fixedly connected to the bottom front end of the movable pull rod.

[0020] It also includes a shape detection unit, which comprises a shape detection block, a movable connecting rod, a handle, a tightening bolt, a movable support, a shape detection fixed seat, a rotating shaft, and an angle connector. The bottom of the shape detection fixed seat is fixed to the upper surface of the base. The angle connector comprises a longitudinal plate and an inclined plate. The bottom inner wall of the longitudinal plate is fixedly connected to the upper part of the outer wall of the shape detection fixed seat. The bottom end of the inclined plate is connected to the top end of the longitudinal plate. The top end of the inclined plate is inclined upwards. The slope of the inclined plate is the same as the slope of the inclined side of the bridge housing body. The bottom of the movable support is fixed to the upper surface of the inclined plate. The rotating shaft is provided between the inner walls of the yoke-shaped structure formed at the top of the movable support for hinged connection with the front end of the movable connecting rod. The bottom of the rear end of the movable connecting rod is connected to the middle of the top of the outer wall of the shape detection block. The handle is provided on the rear side of the top of the movable connecting rod. The threaded hole for matching the external thread of the tightening bolt is provided on the rear side of the top of the movable support.

[0021] It also includes an edge-trimming shape detection unit, which comprises several straight-edge detection blocks and bevel detection blocks. The distance between the inner walls of the front and rear straight-edge detection blocks is equal to the distance between the inner walls of the middle arc positioning block; the distance between the inner walls of the front and rear bevel detection blocks is equal to the distance between the inner walls of the middle arc positioning block; the bottoms of the straight-edge and bevel detection blocks are fixed to the top of the base; the height of the outer end of the bevel detection block is equal to the height of the straight-edge detection block; and the height of the inner end of the bevel detection block is equal to the height of the outer end of the middle arc front plate.

[0022] The top outer end of the fixed block is provided with a vertical pressing data acquisition point, which is a distance sensor fixed to the top outer end of the fixed block, used to measure the distance between the top of the fixed block and the bottom of the movable pull rod; the top of the straight edge detection block and the inclined edge detection block are respectively provided with workpiece straight edge data acquisition points and workpiece inclined edge data acquisition points. The workpiece straight edge data acquisition point is composed of distance sensors set at the top front end and top rear end of the straight edge detection block, and the workpiece inclined edge data acquisition point is composed of distance sensors set at the top front end and top rear end of the inclined edge detection block; the inner wall of the end face stop block is provided with a workpiece length data acquisition point; the pressure head is provided with a horizontal pressing data acquisition point; the shape detection block is provided with a single-sided shape data acquisition point.

[0023] It also includes a data processing device, which comprises a data acquisition module, a data processing module, an anomaly warning module, and a report generation module. The vertical clamping data acquisition point, the workpiece straight edge data acquisition point, the workpiece length data acquisition point, the horizontal clamping data acquisition point, the workpiece inclined edge data acquisition point, and the single-sided shape data acquisition point are respectively communicatively connected to the data acquisition module. The data acquisition module, the data processing module, and the anomaly warning module are communicatively connected in sequence. The data processing module and the anomaly warning module are respectively communicatively connected to the report generation module.

[0024] A switch assembly, a go / no-go gauge assembly, and a calibration device are fixed to the top front end of the base. 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 fixing base plate, a go / no-go gauge fixing ramp, and a go / no-go gauge fixing vertical plate. The go / no-go gauge fixing base plate is fixed to the top of the base. The bottom ends of the two go / no-go gauge fixing ramps are connected to the top ends of the go / no-go gauge fixing base plate. The top ends of the two go / no-go gauge fixing ramps are inclined towards the middle. The top end of the go / no-go gauge fixing vertical plate is connected to the top end of the go / no-go gauge fixing ramp. The distance between the inner walls of the two go / no-go gauge fixing vertical plates is less than the width of the middle part of the go / no-go gauge.

[0025] This invention discloses a method for using a rapid automatic positioning and detection device for a bridge housing body, characterized by comprising the following steps:

[0026] Step 1, Detection system preparation and startup:

[0027] Connect the detection device to the air source; establish connections between the data acquisition module and the vertical clamping data acquisition point, the workpiece straight edge data acquisition point, the workpiece length data acquisition point, the horizontal clamping data acquisition point, the workpiece inclined edge data acquisition point, and the single-sided shape data acquisition point, respectively, to prepare for real-time acquisition of various parameter values ​​during the detection process;

[0028] Step 2, Placement and positioning of the bridge housing:

[0029] The stamped single bridge housing body is placed into the testing device and fixed by the straight-edge support seat and the middle support rod;

[0030] Automatic center positioning is achieved by using the central arc positioning block to ensure that the single bridge housing body is in the correct detection position.

[0031] Step 3, clamping and setting the testing benchmark for the bridge housing body:

[0032] The control switch assembly is turned on to initiate the detection process;

[0033] The horizontal cylinder extends and fits the inner cavity of the side of the axle housing body with the outer side of the straight edge support seat;

[0034] The vertical cylinder extends and presses the movable tie rod down, which in turn drives the straight edge pressure rod and the middle pressure rod to press the axle housing body tightly.

[0035] The end cylinders on both sides extend and are driven by the guide rod to fit the end face stop blocks against both ends of the axle housing body. At this time, the axle housing body is in the detection reference state.

[0036] 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;

[0037] Step 4: Gap Detection and Real-time Data Processing

[0038] The go / no-go gauge assembly detects the gaps between various parts of the bridge housing body and the straight edge detection block, the beveled edge detection block, and the shape detection block;

[0039] The data processing module cleans, calibrates, and calculates the collected gap data to obtain the actual gap value;

[0040] The actual gap value is compared with the preset acceptable range. Once an abnormal value is found, the abnormality warning module is immediately triggered to issue a warning.

[0041] Step 5, Length Deviation Measurement and Real-time Data Processing:

[0042] After the dial indicator is zeroed by the calibrator, the pointer of the calibrator passes through the outer end face of the stop block corresponding to the inner hole measuring end face of the length detection seat;

[0043] The data processing module collects the readings of the dial gauge in real time and calculates the length deviation value;

[0044] The length deviation value is compared with the preset allowable deviation range. Once an abnormal value is found, the abnormality warning module is immediately triggered to issue a warning.

[0045] Step 6, Detection Completion and Data Processing:

[0046] The control switch assembly is turned off, initiating the release process of the detection device;

[0047] The retraction of the end cylinders on both sides causes the end face stop blocks to retract;

[0048] The vertical cylinder causes the straight-edge pressure rod and the middle pressure rod to loosen;

[0049] The horizontal cylinder retracts and releases the axle housing body, at which point the axle housing body can be removed.

[0050] The data processing module performs statistical analysis on the data collected throughout the testing process and generates a detailed testing report;

[0051] Based on the early warning results and statistical analysis results, the report generation module automatically generates electronic documents or printouts of the test reports, which are then provided to the testers.

[0052] The beneficial effects of this invention are as follows:

[0053] Rapid automatic positioning: This invention uses the pipa-shaped holes of the bridge housing for positioning, and applies pressure from cylinders in multiple directions to rapidly and automatically position the single bridge housing body, quickly placing the workpiece under the detection reference. This greatly improves detection efficiency and shortens the production cycle.

[0054] Multi-item one-time inspection: This invention can complete the inspection of multiple items such as half-side length, straightness of straight side, parallelism of end face, and single-side meat quality of the bridge shell body in one go, without the need for multiple clamping and positioning, thus improving the accuracy and reliability of the inspection.

[0055] High versatility: This invention is applicable to the inspection of axle housing bodies of different lengths and models. It can meet the inspection needs of various vehicle models with simple adjustments, and has strong versatility and flexibility.

[0056] High level of informatization: By integrating automated components such as cylinders, dial indicators, and go / no-go gauges, data processing and control of the testing process are realized, reducing manual intervention and improving the consistency and repeatability of testing.

[0057] Improve product quality: The single bridge housing body can be quickly inspected during the stamping process, which can promptly detect workpiece problems, effectively avoid batch quality problems, and improve the overall product quality.

[0058] Optimize production process: The use of this invention helps to optimize the production process of the bridge housing body. Through rapid positioning and detection, production information can be fed back in a timely manner to guide production adjustments and improvements. Attached Figure Description

[0059] Figure 1This is an isometric drawing of a rapid automatic positioning and detection device for a bridge housing body according to the present invention.

[0060] Figure 2 yes Figure 1 Top view.

[0061] Figure 3 yes Figure 2 A magnified view of the left side.

[0062] Figure 4 yes Figure 1 Enlarged view of the structure of the mid-end face detection unit 200.

[0063] Figure 5 yes Figure 1 A schematic diagram of the structure of the straight edge positioning unit 300 and the vertical pressing unit 500.

[0064] Figure 6 yes Figure 1 A schematic diagram of the structure of the central positioning unit 400 and the vertical pressing unit 500.

[0065] Figure 7 yes Figure 1 A schematic diagram of the structure of the shape detection unit 600.

[0066] Figure 8 yes Figure 1 A schematic diagram of the structure of the trimming shape detection unit 700.

[0067] Figure 9 This is a schematic diagram of the detection status of the bridge housing body 800 by a rapid automatic positioning and detection device for the bridge housing body according to the present invention.

[0068] Figure 10 This is a schematic diagram of the data acquisition layout of a rapid automatic positioning and detection device for bridge housing body according to the present invention.

[0069] Figure 11 This is a schematic diagram of the data processing unit of a rapid automatic positioning and detection device for a bridge housing body according to the present invention.

[0070] Figure 12 yes Figure 1 A schematic diagram of the structure of the 1000 no-go gauge assembly.

[0071] In the diagram: Base 100, End face detection unit 200, Straight edge positioning 300, Middle 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, Turning 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, Middle pressure rod 20, Middle support rod 21, Middle arc positioning block 22, Middle support component 23, Shape detection block 25, Movable connecting rod 26 27. Handle, 28. Tightening bolt, 29. Movable support, 30. Shape detection fixing seat, 31. Rotating shaft, 32. Angle connector, 33. Straight edge detection block, 34. Inclined edge detection block, 35. User management module, 36. Report generation module, 37. Anomaly warning module, 38. Data processing module, 39. Data acquisition module, 40. Data processing interface, 41. Vertical clamping data acquisition point, 42. Workpiece straight edge data acquisition point, 43. Workpiece length data acquisition point, 44. Horizontal clamping data acquisition point, 45. Workpiece inclined edge data acquisition point, 46. Shape single-sided data acquisition point, 221. Middle base plate, 222. Middle arc front plate, 223. Middle arc rear plate, 321. Longitudinal plate, 322. Inclined plate, 1001. Go / no-go gauge, 1002. Go / no-go gauge fixing base plate, 1003. Go / no-go gauge fixing inclined plate, 1004. Detailed Implementation

[0072] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0073] Example: Please refer to Figures 1-12 ,

[0074] This invention discloses a rapid automatic positioning and detection device for the bridge housing body, such as... Figure 1 The isometric view of the detection device is shown, including a base 100, an end face detection unit 200 for detecting the distance between the end faces of the bridge housing body 800, a straight edge positioning 300, a middle positioning 400, and a vertical clamping unit 500.

[0075] Further, such as Figure 4 , Figure 5 , Figure 6As shown, the end face detection unit 200 is fixed to the top two ends of the base 100 for detecting the parallelism and deviation of the end face of the bridge housing body 800. The end face detection unit 200 includes 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 connects to the middle of the outer wall of the end face stop block 5. The dial indicator 7 is fixed to the length detection seat 6. A protrusion is provided on one side of the end face stop block 5. The needle of the dial indicator 7 can pass through the protrusion. The end of the needle of the dial indicator 7 is flush with the inner wall of the protrusion. Figure 9 The diagram illustrates the detection status of the axle housing body using a rapid automatic positioning and detection device for the axle housing body according to the present invention. The inner wall of the end face detection unit 200 is in contact with both ends of the axle housing body 800. When the end cylinder 1 drives the inner wall of the end face stop block 5 to press tightly against the end face of the axle housing body 800, the distance between the needles of the dial indicators 7 on both sides is the length of the axle housing body 800. By setting the protruding block, it can be ensured that the dial indicators 7 on both sides are not obstructed when measuring distance.

[0076] The base 100 is provided with straight-edge support seats 18 and a middle support rod 21 on the top two sides and middle part, respectively, for supporting the bottom two sides and middle of the bridge housing body 800; such as Figure 1 , Figure 2 As shown, the straight edge positioning 300 and the middle positioning 400 are used to position the straight edge and the middle of the bridge housing body 800, respectively. The straight edge positioning 300 and the middle positioning 400 are pressed against the top of the straight edge and the middle of the bridge housing body 800 by the vertical clamping unit 500. This device enables the workpiece to quickly self-position 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 single bridge housing body is automatically adjusted to the detection reference, realizing the rapid detection of multiple items of the stamped bridge housing body parts.

[0077] 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 has an inverted "U" shape, with its top center connected to the bottom of the vertical pressing 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 housing body 800. The two straight edge support seats 18 have an inverted "T" shape, with their bottom ends fixed to the top of the base 100 and their top ends located below the bottom ends of the pressure rod 14. The horizontal cylinder fixing seat 17 has an "L" shape, with its bottom fixed to the front of the straight edge of the bridge housing body 800. The cylinder 16 is fixed to the front wall of the horizontal cylinder mounting base 17. The output end of the horizontal cylinder 16 passes through the outer wall of the horizontal cylinder mounting base 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. 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 end of the straight edge support seat 18, ensuring that the pressure of the pressure rod 14 will not damage the top of the bridge housing body 800.

[0078] 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 has an inverted "T" shape, and its bottom is fixed to the front center of the bridge housing body 800. The intermediate arc positioning block 22 includes an intermediate base plate 221, an intermediate arc front plate 222, and an intermediate arc rear plate 223. The intermediate base 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 top rear end of the intermediate base plate 221. The upper surfaces of the intermediate arc front plate 222 and the intermediate arc rear plate 223 have an arc-shaped structure with a central convex shape. The intermediate support rod 21 has a square structure, and its bottom end passes through the intermediate base plate. The middle part of 221 is connected to the top of the intermediate support member 23; the intermediate pressure rod 20 has a square structure, and its top end is connected to the bottom of the vertical pressing unit 500. The bottom end of the intermediate pressure rod 20 can be pressed tightly against the top of the middle of the axle housing body 800. The bottom end of the intermediate pressure rod 20 is driven by the vertical pressing unit 500 to press against the top of the middle of the axle housing body 800. The bottom of the middle of the axle housing body 800 is supported by the top end of the intermediate support rod 21, so that the pressure of the bottom end of the intermediate pressure rod 20 acts on the top end of the intermediate support rod 21, ensuring that the pressure of the intermediate pressure rod 20 will not damage the top of the axle housing body 800. In addition, the arc surfaces of the top of the intermediate arc front plate 222 and the intermediate arc rear plate 223 match the pipa hole at the bottom of the middle of the axle housing body 800.

[0079] Further, such as Figure 5 , Figure 6As shown, the vertical clamping unit 500 includes a vertical cylinder 8, a vertical pull rod 9, a pivot pin 10, a movable rod seat 11, a movable pull rod 12, a fixing block 13, and a vertical clamping fixing seat 19. The vertical clamping fixing seat 19 is fixed to the top rear side of the base 100. The fixing block 13 is fixed to one side wall of the vertical clamping fixing seat 19. The cylinder body of the vertical cylinder 8 is fixed below the rear wall of the fixing block 13. The top end of the piston rod of the vertical cylinder 8 is connected to the vertical pull rod 9. A pivot pin 10 is provided on the upper outer wall of the vertical pull rod 9, which is hinged to the rear end of the movable pull rod 12. The top rear end of the fixing block 13 is connected to the movable rod seat 12, which has a yoke-like structure. The bottom end of 1 is hinged, and the inner walls of the top two sides of the movable rod seat 11 are fixedly connected to the rear side of the side wall of the movable pull rod 12. The tops of the pressure rod 14 and the intermediate pressure rod 20 are respectively fixedly connected to the bottom front end of the movable pull rod 12. When the vertical pressing unit 500 is working, the switch assembly 900 opens 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 bottom rear side of the movable pull rod 12 is hinged to the top rear end 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, pressing the top straight edge or the top middle edge of the bridge housing body 800.

[0080] 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. 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 part of the outer wall of the shape detection fixed seat 30. The bottom end of the inclined plate 322 is connected to the top end of the longitudinal plate 321. The top end of the inclined plate 322 is inclined upwards. The slope of the inclined plate 322 is the same as the slope of the inclined side of the bridge housing body 800. The bottom of the movable support 29 is fixed to the inclined plate 321. On the upper surface of 22, the inner wall of the yoke-shaped structure formed at the top of the movable support 29 is provided with a pivot 31 for hinged to the front end of the movable connecting rod 26. The bottom of the rear end of the movable connecting rod 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 connecting rod 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. During operation, by tightening the tightening bolt 28 with the threaded hole on the rear side of the top of the movable support 29, the shape detection block 25 connected to the bottom of the rear end of the movable connecting rod 26 can be driven to press against the inclined surface of the bridge housing body 800. Since the slope of the inclined plate 322 is the same as the slope of the inclined side of the bridge housing body 800, the shape detection block 25 can fit against the inclined surface of the bridge housing body 800.

[0081] Further, such as Figure 8 As shown, it also includes an edge-trimming shape detection unit 700, which includes a plurality of straight edge detection blocks 33 and beveled edge detection blocks 34. The distance between the inner walls of the front and rear straight edge detection blocks 33 is equal to the distance between the inner walls of the intermediate arc positioning block 22; the distance between the inner walls of the front and rear beveled edge detection blocks 34 is equal to the distance between the inner walls of the intermediate arc positioning block 22; the distance between the inner walls of the straight edge detection blocks 33 and the ... The bottom of the measuring block 34 is fixed to the top of the base 100. The height of the outer end of the inclined edge measuring block 34 is equal to the height of the straight edge measuring block 33. The height of the inner end of the inclined edge measuring block 34 is equal to the height of the outer end of the middle arc front plate 222. The bottom sides of the bridge housing body 800 are placed on the top of the straight edge measuring blocks 33 and the inclined edge measuring blocks 34 on both sides. The length of each part of the bridge housing body 800 can be measured through the collection points on the front and rear sides of the top of the straight edge measuring blocks 33 and the inclined edge measuring blocks 34.

[0082] Further, such as Figure 10As shown, a vertical pressing data acquisition point 41 is provided at the top outer end of the fixed block 13. The vertical pressing data acquisition point 41 is a distance sensor fixed at the top outer end of the fixed block 13, used to measure the distance between the top of the fixed block 13 and the bottom of the movable pull rod 12.

[0083] The top of the straight edge detection block 33 and the inclined edge detection block 34 are respectively provided with a workpiece straight edge data acquisition point 42 and a workpiece inclined edge data acquisition point 45. The workpiece straight edge data acquisition point 42 is composed of a distance measuring sensor set at the front end and the rear end of the top of the straight edge detection block 33, and the workpiece inclined edge data acquisition point 45 is composed of a distance measuring sensor set at the front end and the rear end of the top of the inclined edge detection block 34. The lengths of the straight edge and the inclined edge of the bridge housing body 800 placed on the top of the straight edge detection block 33 and the inclined edge detection block 34 can be detected through the workpiece straight edge data acquisition point 42 and the workpiece inclined edge data acquisition point 45.

[0084] The inner wall of the end face stop block 5 is provided with workpiece length data acquisition point 43. The data collected by the workpiece length data acquisition point 43 is the distance between the pointers of the dial gauges 7 on both sides after they pass through the protrusions on the side of the end face stop block 5. This distance is the total length of the entire bridge housing body 800.

[0085] The pressure head 15 is equipped with a horizontal pressing data acquisition point 44, which can detect the width of the straight edge of the bridge housing body 800; the shape detection block 25 is equipped with a single-sided shape data acquisition point 46, which detects the slope and shape of the inclined edge of the bridge housing body 800; the data of all the above acquisition points are transmitted to the data processing module 38 and compared with the model to obtain the error of the produced bridge housing body 800.

[0086] Further, such as Figure 11 As shown, it also includes a data processing device, which comprises a data acquisition module 39, a data processing module 38, an anomaly warning module 37, and a report generation module 36. The vertical clamping data acquisition point 41, the workpiece straight edge data acquisition point 42, the workpiece length data acquisition point 43, the horizontal clamping data acquisition point 44, the workpiece inclined edge data acquisition point 45, and the single-sided shape data acquisition point 46 are all communicatively connected to the data acquisition module 39. The data acquisition module 39, the data processing module 38, and the anomaly warning module 37 are sequentially communicatively connected. The data processing module 38 and the anomaly warning module 37 are respectively communicatively connected to the report generation module 36. The data acquisition module 39 establishes a connection with the data processing interface 40 of the bridge housing body 800 detection device via serial communication, network communication, or a USB interface, and acquires various parameter values ​​output by the detection device in real time, such as half-side length, straight seam gap, upper and lower misalignment, angle misalignment, end face parallelism, overall dimensions, and trimming shape.

[0087] 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 assess the dispersion of the data, ensuring the accuracy of the processing results.

[0088] Anomaly Warning Module 37: Based on preset thresholds or standards, it judges the processed data. Once an abnormal value or parameter that does not meet the requirements is detected, the warning mechanism is immediately triggered, and warning prompts are given through sound, light, pop-up windows, etc., and the abnormal information is recorded.

[0089] Report generation module 36: Automatically generates a test report based on the processed data and early warning results. The report includes test results, anomaly information, and handling suggestions, and is provided to the tester in electronic document or printout format.

[0090] It also includes a user management module 35: which manages users of the software system, including user registration, login, and permission allocation. It uses database technology to store user information and employs role-based and access control mechanisms to achieve access isolation and data protection between different users.

[0091] Further, such as Figure 1 and Figure 12As shown, a switch assembly 900, a go / no-go gauge assembly 1000, and a gauge 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 includes 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 is fixed to the top of the base 100. The bottom ends of the two go / no-go gauge fixing inclined plates 1003 are connected to the top ends of the go / no-go gauge fixing base plate 1002. The top ends of the two go / no-go gauge fixing inclined plates 1003 are inclined towards the middle. The top end of the go / no-go gauge fixing vertical plate 1004 is fixed to the go / no-go gauge. The top of the inclined plate 1003 is connected, and the distance between the inner walls of the two go / no-go gauge fixing vertical plates 1004 is less 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 two go / no-go gauge fixing vertical plates 1004, since the gap between the two go / no-go gauge fixing vertical plates 1004 is less than the width of the middle part of the go / no-go gauge 1001, the two go / no-go gauge fixing vertical plates 1004 can clamp the go / no-go gauge 1001, preventing the go / no-go gauge 1001 from being lost and making it easy to retrieve the go / no-go gauge 1001. The go / no-go gauge 1001 includes round and square go / no-go gauges, etc., and is used to detect the gap between various parts of the bridge housing body 800 and the straight edge detection block 33, the inclined edge detection block 34, and the shape detection block 25, so as to conveniently and intuitively determine whether each test item is qualified. The calibrator 1100 is fixed on the base 100. The dial indicator 7 can be quickly zeroed by the calibrator 1100. The zeroed dial indicator can be used directly for measurement, and the measurement result is the deviation value.

[0092] The method of using the detection device of the present invention is as follows:

[0093] (a) Detection and data processing are carried out simultaneously:

[0094] Step 1, Detection system preparation and startup:

[0095] Connect the detection device to the air source; establish connections between the data acquisition module 39 and the vertical pressing data acquisition point 41, the workpiece straight edge data acquisition point 42, the workpiece length data acquisition point 43, the horizontal pressing data acquisition point 44, the workpiece inclined edge data acquisition point 45, and the single-sided shape data acquisition point 46 respectively, in preparation for real-time acquisition of various parameter values ​​during the detection process;

[0096] Step 2, Placement and positioning of the bridge housing body 800:

[0097] The stamped single 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.

[0098] Automatic center positioning is achieved by using the central arc positioning block 22 to ensure that the single bridge housing body 800 is in the correct detection position;

[0099] Step 3: 800mm clamping and testing baseline setting for the bridge housing body:

[0100] The control switch assembly 900 is turned on, initiating the detection process;

[0101] The horizontal cylinder 16 extends and fits the inner cavity of the side of the axle housing body 800 with the outer side of the straight edge support 18.

[0102] The vertical cylinder 8 extends and presses the movable pull rod 12 down, which drives the straight edge pressure rod 14 and the middle pressure rod 20 to press the bridge housing body 800.

[0103] The end cylinders 1 on both sides extend out, and the guide rod 3 drives the end face stop block 5 to fit against both ends of the axle housing body 800. At this time, the axle housing body 800 is in the detection reference state.

[0104] 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;

[0105] Step 4: Gap Detection and Real-time Data Processing

[0106] The go / no-go gauge assembly 1000 detects the gaps between various parts of the bridge housing body 800 and the straight edge detection block 33, the inclined edge detection block 34, and the shape detection block 25.

[0107] The data processing module 38 cleans, calibrates, and calculates the collected gap data to obtain the actual gap value;

[0108] The actual gap value is compared with the preset acceptable range. Once an abnormal value is found, the abnormality warning module 37 is immediately triggered to issue a warning.

[0109] Step 5, Length Deviation Measurement and Real-time Data Processing:

[0110] After the dial indicator 7 is zeroed by the calibrator 1100, the pointer passes through the outer end face of the stop block 5 corresponding to the inner hole measuring end face of the length measuring seat 6.

[0111] The data processing module 38 collects the readings of the dial gauge in real time and calculates the length deviation value;

[0112] 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.

[0113] Step 6, Detection Completion and Data Processing:

[0114] When the control switch assembly 900 is closed, the release process of the detection device is initiated.

[0115] The retraction of the end cylinders 1 on both sides causes the end face stop blocks 5 to retract;

[0116] The vertical cylinder 8 causes the straight-edge pressure rod 14 and the middle pressure rod 20 to loosen;

[0117] The horizontal cylinder 16 retracts and releases the bridge housing body 800, at which point the workpiece can be removed.

[0118] The data processing module 38 performs statistical analysis on the data collected throughout the entire testing process and generates a detailed testing report;

[0119] Based on the early warning results and statistical analysis results, the report generation module 36 automatically generates electronic documents or printouts of the test report, which is then provided to the tester.

[0120] (II) User Management and Data Security:

[0121] User Management Module 35: Performs operations such as user registration, login, and permission allocation to ensure the security and stability of the software system.

[0122] Data security module: Encrypts and stores the collected data during transmission to prevent data leakage and tampering.

[0123] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rapid automatic positioning and detection device for a bridge housing body, characterized in that: It includes a base (100), an end face detection unit (200) for detecting the distance between the end faces of the bridge housing body (800), a straight edge positioning (300), a middle positioning (400), and a vertical clamping unit (500). The base (100) has straight-edge support seats (18) and a middle support rod (21) on its top two sides and middle section, respectively, for supporting the bottom two 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 used to position the straight edge and the middle of the bridge housing body (800), respectively, and the straight-edge positioning (300) and the middle positioning (400) are connected to the straight edge and the middle of the bridge housing body (800) by the vertical clamping unit (500). The end face detection unit (200) includes an end cylinder (1), a fixed base (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 base (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 connects to the middle of the outer wall of the end face stop block (5). The dial indicator (7) is fixed on the length detection seat (6). The end face stop block (5) One side is provided with a protrusion, through which the needle of the dial indicator (7) can pass; 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) has an inverted "U" shaped structure, and its top center is connected to the bottom of the vertical pressing unit (500). The bottom ends of both sides of the pressure rod (14) can be pressed against the top of the straight edge of the bridge housing body (800). The two straight edge support seats (18) have an inverted "T" shaped structure, and their bottom ends are fixed to The top of the base (100) is located below the bottom of the pressure rod (14); the horizontal cylinder fixing seat (17) has an "L" shaped structure, and its bottom is fixed to the 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 close contact with the straight edge front wall of the bridge housing body (800).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) has an inverted "T" shape, and its bottom is fixed to the front center 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), and the intermediate arc front plate (222) and intermediate arc rear plate (223) are fixed to the top of the intermediate support member (23). The bottoms are respectively fixed to the top front end and top rear end of the intermediate base plate (221). The upper surfaces of the intermediate arc front plate (222) and the intermediate arc rear plate (223) are arc-shaped structures with a central convex shape. The intermediate support rod (21) is square in structure, and its bottom end passes through the middle of the intermediate base plate (221) and is connected to the top of the intermediate support member (23). The intermediate pressure rod (20) is square in structure, and its top end is connected to the bottom of the vertical pressing unit (500). The bottom end of the intermediate pressure rod (20) can be in tight contact with the middle top of the bridge housing body (800).

2. The rapid automatic positioning and detection device for the bridge housing body according to claim 1, characterized in that: The vertical clamping unit (500) includes a vertical cylinder (8), a vertical pull rod (9), a pivot pin (10), a movable rod seat (11), a movable pull rod (12), a fixing block (13), and a vertical clamping fixing seat (19). The vertical clamping fixing seat (19) is fixed to the top rear side of the base (100), and the fixing block (13) is fixed to one side wall of the vertical clamping fixing seat (19). The cylinder body of the vertical cylinder (8) is fixed to the lower rear wall of the fixing block (13). The piston rod of the piston is connected to the top of the vertical pull rod (9). The upper part of the outer wall of the vertical pull rod (9) is provided with a pivot pin (10) that is hinged to the rear end of the movable pull rod (12). The top rear end of the fixed block (13) is hinged to the bottom end of the movable rod seat (11) which has a yoke-shaped structure. The inner walls of the top two sides of the movable rod seat (11) are fixedly connected to the rear side of the side wall of the movable pull rod (12). 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 pull rod (12).

3. The rapid automatic positioning and detection device for the bridge housing body according to claim 2, characterized in that: 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 connector (32). The bottom of the shape detection fixed seat (30) is fixed to the upper surface of the base (100). The angle connector (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 part of the outer wall of the shape detection fixed seat (30). The bottom end of the inclined plate (322) is connected to the top end 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 inclined side 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 inner wall of the yoke-shaped structure formed at the top of the movable support (29) is provided with the pivot (31) for hinged to the front end of the movable connecting rod (26). The bottom of the rear end of the movable connecting rod (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 connecting rod (26). The threaded hole for matching the external thread of the tightening bolt (28) is provided on the rear side of the top of the movable support (29).

4. The rapid automatic positioning and detection device for the bridge housing body according to claim 3, characterized in that: It also includes a trimming shape detection unit (700), which includes several straight edge detection blocks (33) and beveled 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) is equal to the distance between the inner walls of the middle arc positioning block (22). The distance between the inner walls of the front beveled edge detection block (34) and the rear beveled edge detection block (34) is equal to the distance between the inner walls of the middle arc positioning block (22). The bottoms of the straight edge detection block (33) and the beveled edge detection block (34) are fixed to the top of the base (100). The height of the outer end of the beveled edge detection block (34) is equal to the height of the straight edge detection block (33). The height of the inner end of the beveled edge detection block (34) is equal to the height of the outer end of the middle arc front plate (222).

5. The rapid automatic positioning and detection device for the bridge housing body according to claim 4, characterized in that: The top outer end of the fixed block (13) is provided with a vertical pressing data acquisition point (41). The vertical pressing 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). The top of the straight edge detection block (33) and the inclined edge detection block (34) are respectively provided with a workpiece straight edge data acquisition point (42) and a workpiece inclined edge data acquisition point (45). The workpiece straight edge data acquisition point (42) is composed of a distance sensor set at the top front end and the top rear end of the straight edge detection block (33). The workpiece inclined edge data acquisition point (45) is composed of a distance sensor set at the top front end and the top rear end of the inclined edge detection block (34). The inner wall of the end face stop block (5) is provided with a workpiece length data acquisition point (43). The pressure head (15) is provided with a horizontal square The compression data acquisition point (44) is provided on the shape detection block (25); the shape detection block (25) is provided with a single-sided shape data acquisition point (46); the data processing device is also included, which includes a data acquisition module (39), a data processing module (38), an anomaly warning module (37) and a report generation module (36). The vertical compression data acquisition point (41), the workpiece straight edge data acquisition point (42), the workpiece length data acquisition point (43), the horizontal compression data acquisition point (44), the workpiece inclined edge data acquisition point (45) and the single-sided shape 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 anomaly warning module (37) are connected in sequence. The data processing module (38) and the anomaly warning module (37) are respectively connected to the report generation module (36).

6. The rapid automatic positioning and detection device for a bridge housing body according to claim 5, characterized in that: The base (100) has a switch assembly (900), a go / no-go gauge assembly (1000), and a gauge calibrator (1100) fixed at its top front end. 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 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 (1001) is fixed at its top front end. 02) Fixed to the top of the base (100), the bottom ends of the two go-no-go gauge fixing inclined plates (1003) are connected to the top ends of the go-no-go gauge fixing base plate (1002), the top ends of the two go-no-go gauge fixing inclined plates (1003) on both sides are inclined towards the middle, the top end of the go-no-go gauge fixing vertical plate (1004) is connected to the top end of the go-no-go gauge fixing inclined plate (1003), and the distance between the inner walls of the two go-no-go gauge fixing vertical plates (1004) on both sides is less than the width of the middle part of the go-no-go gauge (1001).

7. A method of using the rapid automatic positioning and detection device for a bridge housing body as described in claim 6, characterized in that, Includes the following steps: Step 1, Detection system preparation and startup: Connect the detection device to the air source; establish connections between the data acquisition module (39) and the vertical pressing data acquisition point (41), the workpiece straight edge data acquisition point (42), the workpiece length data acquisition point (43), the horizontal pressing data acquisition point (44), the workpiece inclined edge data acquisition point (45), and the single-sided shape data acquisition point (46) respectively, and prepare to collect various parameter values ​​in real time during the detection process; Step 2, Placement and positioning of the bridge housing body (800): The stamped single 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); Automatic center positioning is achieved by using the intermediate arc positioning block (22) to ensure that the single bridge housing body (800) is in the correct detection position; Step 3, clamping and setting the testing reference for the bridge housing body (800): The control switch assembly (900) is turned on to start the detection process; The horizontal cylinder (16) extends and fits the inner cavity of the side of the axle housing body (800) with the outer side of the straight edge support (18); The vertical cylinder (8) extends and presses the movable pull rod (12) down, driving the straight edge pressure rod (14) and the middle pressure rod (20) to press the axle housing body (800). The end cylinders (1) on both sides extend out and are driven by the guide rod (3) to fit the end face stop block (5) against both ends of the axle housing body (800). At this time, the axle housing body (800) is in the detection reference state. The data acquisition module (39) collects the displacement and pressure parameters of the end cylinder (1), vertical cylinder (8) and horizontal cylinder (16) 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 inclined edge detection block (34), and the shape detection block (25) at various points; 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 acceptable range. Once an abnormal value is found, the abnormal warning module (37) is immediately triggered to issue a warning. 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 face of the stop block (5) corresponding to the inner hole measuring end face of the length measuring 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. Step 6, Detection Completion and Data Processing: When the control switch assembly (900) is closed, the release process of the detection device is initiated; The end cylinders (1) on both sides retract, causing the end face stop block (5) to retract; The vertical cylinder (8) drives the straight edge pressure rod (14) and the middle pressure rod (20) to release; The horizontal cylinder (16) retracts and releases the axle housing body (800). At this time, the axle housing body (800) is removed. The data processing module (38) performs statistical analysis on the data collected throughout the testing process and generates a detailed testing report; Based on the early warning results and statistical analysis results, the report generation module (36) automatically generates electronic documents or printouts of the test report, which is then provided to the tester.

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