Automatic detection equipment for power-assisted gear shaft of automobile steering device

Abstract

The utility model provides an automatic detection device for a power-assisted gear of an automobile steering device, and the device comprises a machine which is provided with a feeding module used for feeding and conveying a gear shaft, an outer diameter detection module used for detecting the outer diameter of the shaft end of the gear shaft, a run-out detection module used for detecting the run-out of the gear shaft, and a detection module used for detecting the run-out of the gear shaft. The inner diameter detection module is used for detecting the inner diameter of a hollow channel of the gear shaft, the marking module is used for conducting laser marking on the gear shaft, and the discharging module is used for discharging and stacking the gear shaft. In this way, the shaft end outer diameter of the gear shaft, the inner diameter of the hollow channel, run-out tolerance detection and the like are integrated, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to an automated testing device for the power steering gear shaft of an automobile. Background Technology

[0002] With the rapid development of the automotive industry, the performance and safety requirements of the steering gear, as a core component of the vehicle control system, are increasingly stringent. The power steering gear, as a key transmission element in the steering gear, directly affects the reliability and service life of the steering system due to its machining accuracy. The specific structure of the power steering gear shaft in an automotive steering gear is as follows: Figure 1 As shown, the power assist gear shaft 100 includes a shaft body 101 and a gear portion 102 formed on the shaft body 101. The shaft body 101 includes a first shaft end and a second shaft end disposed opposite to each other, wherein one shaft end is hollow along the axial direction to form a hollow channel 103.

[0003] Currently, the quality inspection of gear shafts in existing technologies mainly relies on manual labor or semi-automated equipment, which suffers from problems such as low inspection efficiency, unstable accuracy, and high labor costs. For example, key parameters such as the outer diameter of the gear shaft end, the inner diameter of the hollow channel, and the runout tolerance need to be inspected step by step, resulting in a long inspection cycle. Furthermore, the inspection accuracy for complex structures (such as the inner diameter of the hollow channel) is insufficient and easily introduces human error. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an automated testing device for automotive steering power assist gear shafts that integrates multiple modules for collaborative operation.

[0005] The main components of this utility model include: a machine base, and sequentially arranged on the machine base are a feeding module, a first detection module, a second detection module, a third detection module, a marking module, a unloading module, and a transfer module for moving the gear shaft between the modules.

[0006] The feeding module is used for feeding and conveying gear shafts.

[0007] The first detection module includes a first clamping member and an outer diameter detection member. The first clamping member is used to clamp the axial ends of the gear shaft, and the outer diameter detection member is placed on both radial sides of the shaft end of the gear shaft to detect the outer diameter of its shaft end.

[0008] The second detection module includes a second clamping member, a gear ring detection member, and a shaft end detection member. The second clamping member is used to clamp both ends of the gear shaft in the axial direction. The gear ring detection member is placed on the radial side of the gear part of the gear shaft and is used to detect the runout error of the gear part. The shaft end detection member is located on the radial side of the shaft end of the gear shaft and is used to detect the runout error of the shaft end.

[0009] The third detection module includes a support frame, on which a material-carrying part is provided for placing the gear shaft to be detected, and a detection part is provided below the material-carrying part for detecting the inner diameter of the hollow channel of the gear shaft.

[0010] The marking module is used to perform laser marking on the gear shaft that has completed the inspection. It includes a first mounting part for mounting the gear shaft, and a marking machine is provided on the horizontal side of the first mounting part.

[0011] The unloading module is used for unloading and stacking gear shafts.

[0012] Preferably, the first clamping member includes a first clamping member and a second clamping member disposed opposite to each other. The first clamping member includes a first chuck and a first transverse drive member for driving the first chuck to move axially laterally. The second clamping member includes a second chuck and a second transverse drive member for driving the second chuck to move axially laterally. The axes of the first chuck and the second chuck are coaxially disposed and respectively clamp the two ends of the gear shaft.

[0013] The second clamping member has the same structure as the first clamping member.

[0014] Preferably, the outer diameter detection component includes an outer diameter detection part and a second transverse drive member for driving the outer diameter detection part to move axially laterally. The outer diameter detection part includes a first bracket, on which two sets of oppositely arranged first displacement sensors are disposed, and the first displacement sensors are respectively located on both radial sides of the gear shaft.

[0015] Preferably, the gear ring detection component includes a gear skip detection part and a displacement drive module for driving the gear skip detection part to move radially. The gear skip detection part includes a mounting plate, on which a floating slide rail extending radially is provided. A support plate is slidably disposed on the floating slide rail. On the side of the support plate near the second clamping component, a detection gear that meshes with the gear part of the gear shaft and a rotary drive component for driving the detection gear to rotate are provided. On the side of the support plate away from the second clamping component, a fixed plate is provided. A return spring is provided between the support plate and the fixed plate. On the side of the support plate away from the second clamping component, a second displacement sensor is provided for detecting the displacement of the support plate.

[0016] Preferably, a guide rod is horizontally inserted between the support plate and the fixing plate, and the return spring is sleeved on the circumference of the guide rod, with one end of the return spring abutting the support plate and the other end abutting the fixing plate.

[0017] Preferably, the shaft end detection component includes two sets of shaft end detection parts spaced apart along the axial direction and a fourth transverse drive component that drives the shaft end detection parts to move laterally along the axial direction. The shaft end detection part includes a second bracket and a third displacement sensor disposed on the second bracket. The third displacement sensor is located on the radial side of the shaft end of the gear shaft.

[0018] Preferably, the material loading section includes a lifting plate and a first lifting drive module that drives the lifting plate to reciprocate in a vertical direction. The lifting plate is provided with a vertically extending slide rail, and a mounting support plate is slidably mounted on the slide rail. The mounting support plate has an L-shaped structure, and a material loading fixture is provided on its horizontal part. The material loading fixture has a limiting groove and a detection hole penetrating the limiting groove. The limiting groove is used to position the end of the gear shaft. A pneumatic clamping member is provided on the vertical part of the mounting support plate for radially clamping the gear shaft.

[0019] Preferably, the detection unit includes a detection mandrel, a push rod, and a fourth displacement sensor. The detection mandrel is vertically fixed below the material carrier fixture. The detection end of the detection mandrel is provided with a radially expandable tension block. The detection mandrel can pass through the detection hole and extend to the top of the material carrier fixture. The push rod is coaxially disposed inside the detection mandrel and is driven to move axially by a first lifting cylinder. The lifting motion of the push rod is converted into the radial displacement of the tension block through an inclined plane. The fourth displacement sensor is used to detect the lifting amount of the push rod.

[0020] Preferably, the diameter of the detection hole is larger than the outer diameter of the detection mandrel, and there is a clearance between the detection mandrel and the detection hole.

[0021] Preferably, the mounting part includes a mounting platform, on which a liftable positioning boss and a second lifting cylinder for driving the positioning boss to move vertically are arranged. A flipping component is arranged on one side of the mounting platform. The flipping component includes a pneumatic gripper for clamping the gear shaft, a rotary cylinder for driving the pneumatic gripper to rotate, and a third lifting cylinder for driving the rotary cylinder to lift.

[0022] The beneficial effects of this utility model are as follows: by linking the feeding module, the detection module (outer diameter, inner diameter, runout), the marking module and the unloading module, the entire process of gear shaft detection and palletizing is automated, which greatly improves detection efficiency, reduces errors caused by manual intervention, and reduces labor costs by replacing manual operation with automated detection, thereby comprehensively improving production efficiency and product yield. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of the power-assisted gear shaft;

[0024] Figure 2This is a three-dimensional structural schematic diagram of a preferred embodiment;

[0025] Figure 3 This is a top view of the first detection module in a preferred embodiment;

[0026] Figure 4 This is a side view of the first detection module in a preferred embodiment.

[0027] Figure 5 This is a three-dimensional structural diagram of the second detection module in a preferred embodiment;

[0028] Figure 6 This is a three-dimensional structural schematic diagram of the gear ring detection component in a preferred embodiment;

[0029] Figure 7 This is a three-dimensional structural schematic diagram of the shaft end detection component in a preferred embodiment;

[0030] Figure 8 This is a three-dimensional structural diagram of the third detection module in a preferred embodiment;

[0031] Figure 9 This is a three-dimensional structural diagram of the marking module in a preferred embodiment;

[0032] Figure label:

[0033] 100. Gear shaft; 101. Shaft body; 102. Gear section; 103. Hollow channel;

[0034] 1. Material feeding module;

[0035] 2. First detection module; 21. First clamping component; 211. First chuck; 212. First transverse drive component; 213. Second chuck; 214. Second transverse drive component; 22. Outer diameter detection component; 221. Outer diameter detection part; 2211. First bracket; 2212. First displacement sensor; 222. Third transverse drive component;

[0036] 3. Second detection module; 31. Second clamping component; 32. Gear ring detection component; 321. Gear runout detection unit; 3211. Mounting plate; 3212. Floating slide rail; 3213. Support plate; 3214. Second displacement sensor; 3215. Detection gear; 3216. Rotation drive component; 3217. Fixing plate; 3218. Guide rod; 3219. Return spring; 322. Displacement drive module; 33. Shaft end detection component; 331. Shaft end detection unit; 3311. Second bracket; 3312. Third displacement sensor; 332. Fourth lateral movement drive component;

[0037] 4. Third detection module; 41. Support frame; 42. Material loading section; 421. Lifting plate; 422. First lifting drive module; 423. Mounting support plate; 424. Material loading fixture; 425. Pneumatic clamping component; 43. Detection section; 431. Detection mandrel; 432. Push rod; 433. Fourth displacement sensor; 434. First lifting cylinder;

[0038] 5. Marking module; 51. Mounting section; 511. Mounting platform; 512. Positioning boss; 513. Flipping component; 5131. Pneumatic gripper; 5132. Rotary cylinder; 5133. Second lifting cylinder; 52. Marking machine; 53. Fifth transverse drive component;

[0039] 6. Material feeding module;

[0040] 7. Transfer module. Detailed Implementation

[0041] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0042] like Figure 2 As shown, this application proposes an automated testing device for automotive steering power assist gear shafts, which includes a machine base, a loading module 1, a first testing module 2, a second testing module 3, a third testing module 4, a marking module 5, a unloading module 6, and a transfer module 7 for moving the gear shaft between the modules, all sequentially arranged on the machine base.

[0043] like Figure 2 As shown, the feeding module 1 is used for feeding and conveying the gear shaft, and the unloading module 6 is used for unloading and stacking the gear shaft. Both the feeding module and the unloading module can be selected from the material tray palletizer and the material tray separator, which are existing conventional technologies in this field, so they will not be described in detail here.

[0044] like Figure 2-4 As shown, the first detection module 2 includes a first clamping member 21 and an outer diameter detection member 22. The first clamping member 21 is used to clamp the two ends of the gear shaft in the axial direction, and the outer diameter detection member 22 is located on both sides of the shaft end of the gear shaft and is used to detect the outer diameter of the shaft end of the clamped gear shaft.

[0045] Specifically, the first clamping member 21 includes a first clamping member and a second clamping member disposed opposite to each other. The first clamping member includes a first chuck 211 and a first transverse drive member 212 for driving the first chuck 211 to move axially laterally. The second clamping member includes a second chuck 213 and a second transverse drive member 214 for driving the second chuck 213 to move axially laterally. The first chuck 211 and the second chuck 213 are coaxially arranged and respectively clamp the two ends of the gear shaft. The clamping ends of the first chuck 211 and the second chuck 213 have a tapered structure to effectively avoid clamping deformation. The first chuck 211 is configured as a mandrel structure that can be inserted into the hollow channel of the gear shaft. The diameter of the first chuck 211 is slightly smaller than the inner diameter of the hollow channel of the power assist gear shaft. During the clamping process, the first chuck 211 is inserted into the hollow channel of the gear shaft, and the second chuck 213 abuts against the end of the gear shaft to improve the stability of the power assist gear shaft during clamping and ensure that the clamped gear shaft can rotate relative to the chuck.

[0046] like Figure 2-4 As shown, the outer diameter detection component 22 includes an outer diameter detection section 221 and a third transverse movement drive 222 that drives the outer diameter detection section 221 to move axially laterally. The outer diameter detection section 221 includes a first bracket 2211, on which two sets of opposing first displacement sensors 2212 are disposed. The first displacement sensors 2212 are located on both radial sides of the gear shaft. The distance between the first displacement sensors 2212 and the end face of the gear shaft is detected, thereby measuring the outer diameter of the gear shaft at the corresponding position. The third transverse movement drive 222 drives the outer diameter detection section 221 to move laterally to adjust the detection position, which can adapt to different detection requirements and different models of gear shafts.

[0047] like Figure 2-5 As shown, the second detection module 3 includes a second clamping member 31, a gear ring detection member 32, and a shaft end detection member 33. The second clamping member 31 is used to clamp both ends of the gear shaft in the axial direction. The gear ring detection member 32 is located on the radial side of the gear part of the clamped gear shaft and is used to detect the runout error of the gear part. The shaft end detection member 33 is located on the radial side of the shaft end of the clamped gear shaft and is used to detect the runout error of the shaft end.

[0048] In this embodiment, the structure of the second clamping member 31 is the same as that of the first clamping member 21, and will not be described again here.

[0049] like Figure 6As shown, the gear ring detection component 32 includes a tooth runout detection unit 321 and a displacement drive module 322 that drives the tooth runout detection unit 321 to move radially. The tooth runout detection unit 321 includes a mounting plate 3211, on which a radially extending floating slide rail 3212 is provided. A support plate 3213 is slidably disposed on the floating slide rail 3212. On the side of the support plate 3213 near the second clamping component 31, there is a detection gear 3215 that meshes with the gear part of the gear shaft, and a rotary drive member 3216 that drives the detection gear 3215 to rotate. The rotary drive member 3216 drives the detection gear 3215 to rotate, thereby driving the auxiliary gear shaft that is in a meshing state with the detection gear 3215 to rotate synchronously. During the rotation of the auxiliary gear shaft, tooth runout is detected in its gear part.

[0050] like Figure 2-6 As shown, a fixing plate 3217 is provided on the side of the support plate 3213 away from the second clamping member 31. A return spring 3219 is provided between the support plate 3213 and the fixing plate 3217 to maintain a constant meshing force between the detection gear 3215 and the gear shaft. A second displacement sensor 3214 is provided on the side of the support plate 3213 away from the second clamping member 31 to detect the displacement of the support plate 3213.

[0051] Furthermore, a guide rod 3218 is horizontally inserted between the support plate 3213 and the fixing plate 3217, and a return spring 3219 is sleeved on the circumference of the guide rod 3218. One end of the return spring 3219 abuts against the support plate 3213, and the other end abuts against the fixing plate 3217.

[0052] like Figure 6 As shown, in an exemplary embodiment, the rotary drive 3216 includes a servo motor, which is connected to a drive gear via a reducer. The drive gear and the detection gear 3215 engage in a transmission. The servo motor drives the drive gear to rotate, which in turn drives the detection gear 3215 to rotate, effectively reducing the motor load.

[0053] like Figure 2-7 As shown, the shaft end detection component 33 includes two sets of shaft end detection sections 331 spaced apart along the axial direction and a fourth transverse drive member 332 that drives the shaft end detection sections 331 to move laterally along the axial direction. The two sets of shaft end detection sections 331 are used to detect the circular runout of the outer surface of the two ends of the gear shaft, respectively. The fourth transverse drive member 332 is used to adjust the detection position of the shaft end detection sections 331. The spacing between the two sets of shaft end detection sections 31 can be adaptively changed according to different models of power steering gear shafts, thereby improving the applicability of the detection equipment.

[0054] like Figure 2-7As shown, the shaft end detection unit 331 includes a second bracket 3311 and a third displacement sensor 3312 disposed on the second bracket 3311. The third displacement sensor 3312 is located on the radial side of the shaft end of the gear shaft, and the sensing end of the third displacement sensor 3312 faces the shaft end of the gear shaft. During the rotation of the gear shaft, the third displacement sensor 3312 senses the runout error of the corresponding shaft end.

[0055] like Figure 2-8 As shown, the third detection module 4 includes a support frame 41, on which a material loading part 42 is provided for placing the gear shaft to be detected, and a detection part 43 is provided below the material loading part 42 for detecting the inner diameter of the hollow channel of the gear shaft.

[0056] like Figure 2-8 As shown, the loading section 42 includes a lifting plate 421 and a first lifting drive module 422 that drives the lifting plate 421 to reciprocate vertically. The lifting plate 421 is provided with a vertically extending slide rail (not shown), and a mounting support plate 423 is slidably mounted on the slide rail. The mounting support plate 423 has an L-shaped structure, and its horizontal portion is provided with a loading fixture 424. The loading fixture 424 has a limiting groove and a detection hole penetrating the limiting groove. The limiting groove is used to position the end of the gear shaft. The vertical portion of the mounting support plate 423 is provided with a pneumatic clamping member 425 for radially clamping the gear shaft and maintaining its stability during the detection process. Preferably, the shape of the limiting groove matches the end profile of the gear shaft to limit its horizontal placement.

[0057] like Figure 2-8 As shown, the detection unit 43 includes a detection mandrel 431, a push rod 432, and a fourth displacement sensor 433. The detection mandrel 431 is vertically fixed on the support frame 41, and its detection end is provided with a radially expandable tension block. The detection mandrel 431 can pass through the detection hole and extend to the top of the material loading fixture 424. The push rod 432 is coaxially arranged inside the detection mandrel 431 and is driven to move axially by the first lifting cylinder 422. The lifting motion of the push rod 432 is converted into the radial displacement of the tension block through the inclined plane. The fourth displacement sensor 433 is used to detect the lifting amount of the push rod 432. The lifting amount and the radial displacement of the tension block have a 1:1 linear relationship, which is used to measure the inner diameter of the hollow channel of the gear shaft.

[0058] Furthermore, the diameter of the detection hole is larger than the outer diameter of the detection core 431, and there is a clearance between the detection core 432 and the detection hole.

[0059] like Figure 2-9 As shown, the marking module 5 is used to laser mark the gear shaft being inspected. It includes a mounting part 51 for mounting the gear shaft, and a marking machine 52 is provided on the horizontal side of the mounting part 51.

[0060] like Figure 2-9 As shown, the mounting section 51 includes a mounting platform 511, on which a positioning boss 512 is disposed. The mounting platform 511 is used to support the end face of the gear shaft. The positioning boss 512 can be inserted into the hollow channel of the gear shaft to define the position of the gear shaft. A flipping member 513 is provided on one side of the mounting platform 511. The flipping member 513 includes a pneumatic gripper 5131 for clamping the gear shaft, a rotary cylinder 5132 for driving the pneumatic gripper 5131 to rotate, and a second lifting cylinder 5133 for driving the rotary cylinder 5132 to rise and fall. The pneumatic gripper 5131 clamps the gear shaft on the mounting platform 511. The second lifting cylinder 5133 drives the rotary cylinder 5132 and the pneumatic gripper 5131 to rise. The rotary cylinder 5132 drives the gear shaft to rotate to perform multi-directional marking on the gear shaft.

[0061] Preferably, the marking machine 52 is connected to the fifth transverse drive 53, which drives the marking machine 52 to move closer to and further away from the mounting part, so as to adjust the distance between the marking machine 52 and the mounting part 51.

[0062] The transfer module 7 includes several transfer components that connect adjacent modules and are used to transfer and transport the gear shaft from one module to the next. The structure of the transfer components can be a robotic arm, a rapid transport mechanism, a linear motion mechanism, etc., all of which are conventional technologies in this field and will not be specifically limited or described here.

[0063] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automated testing device for the power steering gear shaft of an automobile, characterized in that, Mainly includes: The machine platform includes, in sequence, a feeding module, a first detection module, a second detection module, a third detection module, a marking module, a unloading module, and a transfer module for moving the gear shaft between the modules. The feeding module is used for feeding and conveying gear shafts. The first detection module includes a first clamping member and an outer diameter detection member. The first clamping member is used to clamp the axial ends of the gear shaft, and the outer diameter detection member is placed on both radial sides of the shaft end of the gear shaft to detect the outer diameter of its shaft end. The second detection module includes a second clamping member, a gear ring detection member, and a shaft end detection member. The second clamping member is used to clamp both ends of the gear shaft in the axial direction. The gear ring detection member is placed on the radial side of the gear part of the gear shaft and is used to detect the runout error of the gear part. The shaft end detection member is located on the radial side of the shaft end of the gear shaft and is used to detect the runout error of the shaft end. The third detection module includes a support frame, on which a material-carrying part is provided for placing the gear shaft to be detected, and a detection part is provided below the material-carrying part for detecting the inner diameter of the hollow channel of the gear shaft. The marking module is used to perform laser marking on the gear shaft that has completed the inspection. It includes a first mounting part for mounting the gear shaft, and a marking machine is provided on the horizontal side of the first mounting part. The unloading module is used for unloading and stacking gear shafts.

2. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The first clamping member includes a first clamping member and a second clamping member disposed opposite to each other. The first clamping member includes a first chuck and a first transverse drive member for driving the first chuck to move axially laterally. The second clamping member includes a second chuck and a second transverse drive member for driving the second chuck to move axially laterally. The axes of the first chuck and the second chuck are coaxially disposed and respectively clamp the two ends of the gear shaft. The second clamping member has the same structure as the first clamping member.

3. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The outer diameter detection component includes an outer diameter detection part and a second transverse drive component for driving the outer diameter detection part to move axially laterally. The outer diameter detection part includes a first bracket, on which two sets of oppositely arranged first displacement sensors are disposed. The first displacement sensors are respectively located on both radial sides of the gear shaft.

4. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The gear ring detection component includes a gear skip detection unit and a displacement drive module that drives the gear skip detection unit to move radially. The gear skip detection unit includes a mounting plate with a radially extending floating slide rail. A support plate is slidably mounted on the floating slide rail. On the side of the support plate near the second clamping component, there is a detection gear that meshes with the gear part of the gear shaft and a rotary drive component that drives the detection gear to rotate. On the side of the support plate away from the second clamping component, there is a fixed plate. A return spring is provided between the support plate and the fixed plate. On the side of the support plate away from the second clamping component, there is a second displacement sensor for detecting the displacement of the support plate.

5. The automated testing equipment for the power steering gear shaft of an automobile according to claim 4, characterized in that, A guide rod is horizontally inserted between the support plate and the fixing plate. The return spring is sleeved on the circumference of the guide rod, with one end of the return spring abutting the support plate and the other end abutting the fixing plate.

6. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The shaft end detection component includes two sets of shaft end detection parts spaced apart along the axial direction and a fourth transverse drive component that drives the shaft end detection parts to move laterally along the axial direction. The shaft end detection part includes a second bracket and a third displacement sensor mounted on the second bracket. The third displacement sensor is located on the radial side of the shaft end of the gear shaft.

7. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The loading section includes a lifting plate and a first lifting drive module that drives the lifting plate to reciprocate in a vertical direction. The lifting plate is provided with a vertically extending slide rail, and a mounting support plate is slidably mounted on the slide rail. The mounting support plate has an L-shaped structure, and a loading fixture is provided on its horizontal part. The loading fixture has a limit groove and a detection hole that passes through the limit groove. The limit groove is used to position the end of the gear shaft. A pneumatic clamping component is provided on the vertical part of the mounting support plate for radially clamping the gear shaft.

8. The automated testing equipment for the power steering gear shaft of an automobile according to claim 7, characterized in that, The detection unit includes a detection mandrel, a push rod, and a fourth displacement sensor. The detection mandrel is vertically fixed below the material carrier fixture. The detection end of the detection mandrel is provided with a radially expandable tension block. The detection mandrel can pass through the detection hole and extend to the top of the material carrier fixture. The push rod is coaxially disposed inside the detection mandrel and is driven to move axially by a first lifting cylinder. The lifting motion of the push rod is converted into the radial displacement of the tension block through an inclined plane. The fourth displacement sensor is used to detect the lifting amount of the push rod.

9. The automated testing equipment for the power steering gear shaft of an automobile according to claim 8, characterized in that, The diameter of the detection hole is larger than the outer diameter of the detection mandrel, and there is a clearance between the detection mandrel and the detection hole.

10. The automated testing equipment for the power steering gear shaft of an automobile according to claim 1, characterized in that, The mounting section includes a mounting platform, on which a liftable positioning boss and a second lifting cylinder for driving the positioning boss to move vertically are mounted. A flipping component is mounted on one side of the mounting platform. The flipping component includes a pneumatic gripper for clamping the gear shaft, a rotary cylinder for driving the pneumatic gripper to rotate, and a third lifting cylinder for driving the rotary cylinder to lift.

Images