Product final inspection machine

Abstract

The invention relates to a product final inspection machine. The machine comprises a rack; the external detection module comprises a transfer mechanism, and a mixed material detection mechanism, an over-spline detection mechanism, an outer diameter detection mechanism, a length detection mechanism and a helical tooth detection mechanism which are arranged in sequence, and the transfer mechanism transfers parts in a previous process to a next process; the internal detection module comprises a turntable conveying mechanism, and an inner hole detection mechanism, a thread detection mechanism and an inner diameter detection mechanism which are arranged in sequence, and the turntable conveying mechanism conveys parts and enables the parts to pass through the inner hole detection mechanism, the thread detection mechanism and the inner diameter detection mechanism in sequence; and the robot is used for transferring the to-be-detected parts from the charging tray into the mixed material detection mechanism, transferring the parts in the helical tooth detection mechanism into the turntable conveying mechanism and taking down the parts in the turntable conveying mechanism. According to the device, detection work of all parameters of parts can be completed, feeding, discharging and transferring work of the parts can be automatically carried out, detection work of multiple parts can be carried out at the same time, and detection work of batch parts can be rapidly completed.

Description

Technical Field

[0001] The present invention relates to the field of parts detection technology, and in particular to a product final inspection machine. Background Art

[0002] After the mechanical parts are processed, various parameters of the parts (such as length, diameter, aperture, passability, etc.) need to be tested to ensure product quality.

[0003] like Figure 1 The part shown has structures such as splines, threads and inner holes. When in use, each structural feature on the part cooperates with the corresponding counterpart to play the designed function. In order to ensure that the part can be assembled with multiple counterparts smoothly and ensure the matching accuracy and stability when in use, each structural feature needs to be tested to ensure that the quality and accuracy meet the requirements. Since the above parts need to be tested for many parameters, for mass-produced parts, how to quickly complete the inspection of mass parts is a problem that needs to be solved. Summary of the invention

[0004] Based on the above description, the present invention provides a product final inspection machine to quickly complete the inspection of batch parts.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: This application provides a product final inspection machine, and the technical solution adopted is as follows: A product final inspection machine, comprising: Stand; The external detection module arranged on the platform includes a transfer mechanism and a mixing detection mechanism, a spline detection mechanism, an outer diameter detection mechanism, a length detection mechanism and a helical gear detection mechanism arranged in sequence, wherein the mixing detection mechanism is used to detect the part model, the spline detection mechanism is used to detect the passability of the part spline, the outer diameter detection mechanism is used to detect the part outer diameter, the length detection mechanism is used to detect the part length, the helical gear detection mechanism is used to detect the helical gear parameters of the part, and the transfer mechanism is used to transfer the parts in the previous process to the next process; An internal detection module arranged on the platform, comprising a turntable conveying mechanism and an inner hole detection mechanism, a thread detection mechanism and an inner diameter detection mechanism arranged in sequence, wherein the inner hole detection mechanism is used to detect the passability of the inner hole of the part, the thread detection mechanism is used to detect the thread size of the part, the inner diameter detection mechanism is used to detect the diameter of the inner hole of the part, and the turntable conveying mechanism is used to convey the part and make the part pass through the inner hole detection mechanism, the thread detection mechanism and the inner diameter detection mechanism in sequence; The robot is arranged on the platform and is used to transfer the parts to be tested from the material tray to the mixing detection mechanism, to transfer the parts tested in the bevel gear detection mechanism to the turntable conveying mechanism, and to remove the parts tested in the turntable conveying mechanism.

[0006] Preferably, the mixing detection mechanism comprises: A first supporting assembly is provided on the platform and is used to support the part in a horizontal axis state and drive the part to rotate; A code scanning component is arranged on the stand and is used to identify the two-dimensional code on the parts.

[0007] Preferably, the spline detection mechanism comprises: A second support assembly is provided on the platform and is used to support the part with its axis horizontal and drive the part to rotate. The part is restricted from axial movement when it is on the second support assembly; A spline go gauge is arranged on the stand with its axis horizontal. The spline go gauge and the second supporting assembly are spaced apart in the axial direction of the spline go gauge. When the part is on the second supporting assembly, it is coaxial with the spline go gauge and the spline end faces the spline go gauge. A first driving assembly for driving the spline go gauge to move axially is provided on the stand. A pressure sensor is provided between the spline go gauge and the first driving assembly. The pressure sensor is used to detect the pressure between the spline go gauge and the first driving assembly in the axial direction of the spline go gauge.

[0008] Preferably, the outer diameter detection mechanism comprises: A pneumatic outer diameter measuring head is arranged on the stand and is used to support the part in a horizontal axis state and measure the outer diameter of the part; The second driving assembly is arranged on the platform and is used for driving the parts to rotate.

[0009] Preferably, the length detection mechanism comprises: A third support assembly is provided on the stand and is used to support the part in a horizontal axis state and limit the axial movement of the part; A length sensor is arranged on the stand with its axis horizontal. The length sensor and the third support assembly are spaced apart in the axial direction of the length sensor, and the measuring end of the length sensor faces the third support assembly. When the part is on the third support assembly, it is coaxial with the length sensor. The stand is provided with a third driving assembly for driving the length sensor to move axially.

[0010] Preferably, the helical gear detection mechanism comprises: A fourth support assembly, which is arranged on the stand and is used to support the parts in a horizontal axis state; The first visual inspection component is arranged on the platform and is used for inspecting the helical gear parameters of the parts.

[0011] Preferably, the turntable conveying mechanism comprises a turntable connected to the stand, the turntable axis is vertical and can rotate around its axis, a plurality of fifth support assemblies are provided on the turntable, the fifth support assemblies are used to support parts with the axis vertical and the threaded end facing upward, and the plurality of fifth support assemblies are distributed at intervals along the circumference of the turntable; A plurality of workstations are provided on the platform, and the plurality of workstations are spaced apart along the circumference of the turntable. When the turntable rotates to the point where any of the fifth supporting assemblies is located in a workstation, a plurality of the fifth supporting assemblies are located in a plurality of workstations in a one-to-one correspondence. The inner hole detection mechanism, the thread detection mechanism and the inner diameter detection mechanism are respectively arranged in a workstation and are distributed sequentially in the conveying direction of the turntable.

[0012] Preferably, the inner hole detection mechanism comprises: A first support member connected to the platform, located above the turntable and used to limit the upward movement of the parts above the parts; A plug gauge connected to the stand, the plug gauge is located below the turntable with a vertical axis, the part is located between the first support and the plug gauge when the turntable moves to the station where the inner hole detection mechanism is located, and the plug gauge is coaxial with the inner hole of the part; The plug gauge is connected to the platform via a first connection structure, the first connection structure includes a first connection seat and a fourth drive assembly, the first connection seat can move relative to the platform along the axial direction of the plug gauge, the fourth drive assembly is used to drive the first connection seat to move, the plug gauge is connected to the first connection seat, the plug gauge can move relative to the first connection seat along its axial direction, and is suitable for when the plug gauge moves upwardly close to the part with the first connection seat and reaches the maximum depth when inserted into the inner hole of the unqualified part, the plug gauge is restricted by the part and continues to move with the first connection seat; The first detection component includes a first reference piece and a first laser displacement sensor which are spaced apart along the axial direction of the plug gauge, wherein the first reference piece is connected to the stand, the first laser displacement sensor is relatively fixed to the plug gauge, and the first laser displacement sensor is used to detect the distance between the first reference piece and the plug gauge in the axial direction of the plug gauge.

[0013] Preferably, the thread detection mechanism comprises: A fourth clamping jaw connected to the platform and located above the turntable, the fourth clamping jaw being used to clamp a part to limit rotation of the part; A thread gauge connected to the stand, the thread gauge is located above the turntable with a vertical axis, the part is located below the thread gauge when the turntable moves to the station where the thread detection mechanism is located, and the thread of the part is coaxial with the thread gauge; The thread gauge is connected to the platform via a second connecting structure, the second connecting structure comprises a second connecting seat and a second mounting seat, the second connecting seat is connected to the platform and can move relative to the platform along the axial direction of the thread gauge, the second mounting seat is connected to the second connecting seat and can move relative to the second connecting seat along the axial direction of the thread gauge, the thread gauge is connected to the second mounting seat, a fifth driving assembly for driving the second connecting seat to move is provided between the second connecting seat and the platform, and a sixth driving assembly for driving the thread gauge to rotate around its own axis is provided between the second mounting seat and the thread gauge; A second laser displacement sensor connected to the second connecting seat, the second laser displacement sensor being used to detect the distance between the second laser displacement sensor and the second mounting seat in the axial direction of the plug thread gauge; Wherein, it is suitable that during the process of the thread gauge rotating and moving downward toward the part with the second mounting seat and the second connecting seat, when the thread gauge reaches the maximum degree of fit with the unqualified part, the thread gauge and the second mounting seat are restricted by the part and continue to move with the second connecting seat.

[0014] Preferably, the inner diameter detection mechanism comprises: A pneumatic inner diameter measuring head is arranged on the stand, the pneumatic inner diameter measuring head is located below the turntable and has a vertical axis, the part is located above the pneumatic inner diameter measuring head when the part moves with the turntable to the station where the inner diameter detection mechanism is located, and the inner hole of the part is coaxial with the pneumatic inner diameter measuring head; The pneumatic inner diameter measuring head is connected to the platform through a third connecting seat. The third connecting seat can move relative to the platform along the axis of the pneumatic inner diameter measuring head. The platform is provided with a seventh driving component for driving the third connecting seat to move.

[0015] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects: 1. The present application detects the model of parts through the mixing detection mechanism of the external detection module to avoid mixing, and respectively detects the spline, outer diameter, length and bevel gear parameters of the parts through the spline detection mechanism, outer diameter detection mechanism, length detection mechanism and bevel gear detection mechanism, and respectively detects the passability of the inner hole, thread and inner diameter of the inner hole of the parts through the inner hole detection mechanism, thread detection mechanism and inner diameter detection mechanism of the internal detection module, so as to realize the detection of various parameters required for the parts. The parts to be tested are transferred from the tray to the mixing detection mechanism by a robot to realize automatic loading. The parts are transferred between the processes in the external detection module in turn by the transfer mechanism to complete the detection of multiple parameters on a part. The transfer of the parts from the external detection module to the internal detection module is realized by the robot, and the parts are transported by the turntable conveying mechanism in the internal detection module, so that the parts pass through multiple processes in turn to complete the detection of the corresponding parameters, and the parts after the detection are removed by the robot. It realizes the automation of loading and unloading of parts and the transfer between various inspection processes, and completes the inspection of various parameters of parts in sequence. There is no mutual interference between the inspection mechanisms, and multiple parts can be inspected at the same time, which effectively improves the inspection efficiency and can quickly complete the inspection of batch parts.

[0016] 2. In the mixing detection mechanism of the present application, the first supporting component supports the part with its axis horizontal and drives the part to rotate. The part with its axis horizontal only needs to be supported at the bottom to facilitate the transfer mechanism to transfer the part. The QR code on the part is identified by the scanning component. The part is rotated to ensure that the scanning component can scan the QR code. The model data of the part is obtained by identifying the QR code to avoid mixing of parts of other models.

[0017] 3. The mixing detection mechanism of the present application supports the part in a horizontal axis state through the second support assembly and drives the part to rotate, so as to facilitate the transfer mechanism to transfer the part. During the detection, the second support assembly rotates the part, and drives the spline gauge to move close to the part through the first drive assembly, so that the part spline can smoothly enter into a mating state with the spline gauge. If the part spline is qualified, the part spline can completely pass through the spline gauge. Therefore, under the set stroke, if the pressure sensor detects that the pressure data does not change significantly; when the part is unqualified, the part spline cannot completely pass through the spline gauge, and the spline gauge will abut against the part when it moves. The pressure sensor detects that the pressure data will increase. Therefore, whether the part spline is qualified can be judged according to the change in the pressure sensor data. The function of automatically detecting the passability of the part spline is realized.

[0018] 4. The outer diameter detection mechanism of the present application is provided with a pneumatic outer diameter probe and a second drive assembly. The pneumatic outer diameter probe can directly support the part in a horizontal axis state and complete the outer diameter measurement work at the same time. The measurement method is simple. The second drive assembly rotates the part to improve the accuracy of the detection result. The detection data can be compared with the standard data to determine whether the outer diameter of the part is qualified, thereby realizing the function of automatically detecting the outer diameter of the part.

[0019] 5. The length detection mechanism of the present application supports the part with its axis in a horizontal state through a third support assembly and limits the axial movement of the part. The third drive assembly drives the length sensor to move close to the part to detect the length of the part. Within the set moving stroke, the length sensor compares the detection data with the standard data to determine whether the length of the part is qualified, thereby realizing the function of automatically detecting the length of the part.

[0020] 6. The helical gear detection mechanism of the present application supports the part through the fourth supporting component, and detects the helical gear parameters of the part through the first visual detection component. The visual detection component can obtain the part image, analyze the image to obtain the various parameters of the helical gear of the part, and compare them with the standard parameters to determine whether the parameters of the helical gear of the part are qualified, thereby realizing the function of automatically detecting the helical gear parameters of the part.

[0021] 7. The present application sets a plurality of stations distributed along the circumference of the turntable on the stand, and sets the inner hole detection mechanism, thread detection mechanism and inner diameter detection mechanism in one station respectively and distributes them in sequence in the conveying direction of the turntable, so as to realize the function of conveying parts through the inner hole detection mechanism, thread detection mechanism and inner diameter detection mechanism in sequence. The fifth support assembly on the turntable plays the role of supporting the parts so that the turntable can convey the parts stably. The turntable can convey multiple parts at the same time, and when one part is in one station, all the parts are respectively in one station, so that the inner hole detection mechanism, thread detection mechanism and inner diameter detection mechanism can operate simultaneously to perform the detection work of the three parts, thereby improving the detection efficiency.

[0022] 8. In the inner hole detection mechanism of the present application, during the detection, the part is conveyed between the first support member and the plug gauge, the first support member restricts the upward movement of the part at the top of the part, the plug gauge is located below the part, and the first connecting seat is driven to move upward by the fourth drive assembly, driving the plug gauge to move upward and insert into the inner hole of the part to perform the passability detection of the inner hole. When the inner hole of the part is qualified, the plug gauge can be fully inserted into the inner hole of the part during the process of moving upward from the lowest starting position to the highest position with the first connecting seat, the plug gauge does not move relative to the first connecting seat, and the distance between the plug gauge and the first reference part detected by the first laser displacement sensor does not change; and when the inner hole of the part is unqualified, the plug gauge moves upward from the lowest starting position to the highest position with the first connecting seat, and the plug gauge is partially inserted into the inner hole of the part and abuts against the part, and the part prevents the plug gauge from continuing to move upward with the first connecting seat, so that the plug gauge moves relative to the first connecting seat, and the distance between the plug gauge and the first reference part detected by the first laser displacement sensor changes. Whether the distance between the first laser displacement sensor and the first reference part changes is determined based on whether the passability of the inner hole of the part is qualified, thereby realizing the function of automatically detecting the passability of the inner hole of the part.

[0023] 9. The thread detection mechanism of the present application, when the part is transported to the station, is located below the thread gauge and coaxial with the thread gauge, the fourth clamp clamps the part to limit the rotation of the part, the sixth drive assembly drives the thread gauge to rotate, and the fifth drive assembly drives the second connection seat to move downward, driving the second mounting seat and the thread gauge to move downward to form a match with the thread of the part. When the thread size of the part is qualified, the thread gauge moves downward from the highest position to the lowest position with the second connection seat, and the thread gauge can form a complete match with the thread of the part, the thread gauge does not move relative to the second connection seat, and the distance between the second laser displacement sensor and the second mounting seat does not change; when the thread size of the part is unqualified, the thread gauge moves upward from the highest position to the lowest position with the second connection seat, and the thread gauge cannot form a complete match with the thread of the part. After reaching the maximum degree of fit, it abuts against the part, and the part prevents the thread gauge and the second mounting seat from continuing to move downward with the second connection seat, so that the thread gauge and the second mounting seat move relative to the second connection seat, and the distance between the second laser displacement sensor and the second mounting seat changes. Whether the thread passability of the part is qualified can be judged according to whether the distance between the second laser displacement sensor and the second mounting seat changes, thereby realizing the function of automatically detecting the thread size of the part.

[0024] 10. During inspection, the inner diameter detection mechanism of the present application is located above the pneumatic inner diameter probe and coaxial with the pneumatic inner diameter probe when the part is transported to the workstation. The pneumatic inner diameter probe is driven upward by the seventh drive assembly to be inserted into the inner hole of the part. The diameter of the inner hole of the part is measured by the pneumatic inner diameter probe. The measured data is compared with the standard data to determine whether the inner hole of the part is qualified, thereby realizing the function of automatically detecting the diameter of the inner hole of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a part to be tested in the background technology of the present invention; Figure 2 A schematic diagram of the structure of a product final inspection machine provided by an embodiment of the present invention; Figure 3 A schematic top view of a product final inspection machine provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of an external detection module in a product final inspection machine provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the external detection module in the product final inspection machine provided by an embodiment of the present invention without the transfer mechanism; Figure 6 A schematic diagram of the structure of a mixing detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Figure 7 A schematic diagram of the structure of a spline detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of an outer diameter detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a length detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.10 A schematic diagram of the structure of a helical gear detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.11 A schematic diagram of the structure of a transfer mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.12 A schematic diagram of the structure of an internal detection module in a product final inspection machine provided by an embodiment of the present invention; Fig.13 A schematic top view of an internal detection module in a product final inspection machine provided by an embodiment of the present invention; Fig.14 A schematic diagram of the structure of a turntable conveying mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.15 A schematic diagram of the structure of an inner hole detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.16A schematic diagram of the structure of a thread detection mechanism in a product final inspection machine provided by an embodiment of the present invention; Fig.17 This is a schematic diagram of the structure of the inner diameter detection mechanism in the product final inspection machine provided in an embodiment of the present invention.

[0026] Description of reference numerals: 1. Stand; 11. Detection table; 2. External detection module; 21. Transfer mechanism; 211. Third clamp; 22. Mixing detection mechanism; 221. First support assembly; 2211. First support roller group; 22111. First roller; 2212. First motor; 222. Barcode scanner; 223. First lighting ring; 224. Second visual detection assembly; 225. First proximity switch; 23. Spline detection mechanism; 231. Second support assembly; 2311. Second support roller group; 2312. First support seat; 2313. First clamp; 2314. Second motor; 232. Spline gauge; 233 , first drive assembly; 234, pressure sensor; 235, ejector rod; 24, outer diameter detection mechanism; 241, pneumatic outer diameter probe; 242, second drive assembly; 2421, second clamping jaw; 2422, third motor; 243, lifting device; 2431, support shaft; 2432, lifting jaw; 25, length detection mechanism; 251, third support assembly; 2511, length measuring table; 2512, second support seat; 2513, clamping plate; 252, length sensor; 253, third drive assembly; 254, support plate; 255, touch rod; 256, contact; 257, first spring; 26, helical tooth detection mechanism ; 261, fourth support assembly; 2611, helical gear measuring table; 2612, third support seat; 262, first visual inspection assembly; 263, second lighting ring; 3, internal inspection module; 31, turntable conveying mechanism; 311, turntable; 312, divider; 313, fifth support assembly; 3131, bushing; 3132, positioning sleeve; 32, inner hole inspection mechanism; 321, first support member; 322, plug gauge; 323, first connecting seat; 324, fourth drive assembly; 325, first reference member; 326, first laser displacement sensor; 327, first mounting seat; 328, first support block; 329, The second spring; 33. Thread detection mechanism; 331. The fourth clamp; 332. Thread gauge; 333. The second laser displacement sensor; 334. The second connecting seat; 335. The second mounting seat; 336. The fifth drive assembly; 337. The sixth drive assembly; 338. The second support block; 339. The third spring; 34. The inner diameter detection mechanism; 341. The pneumatic inner diameter probe; 342. The third connecting seat; 343. The seventh drive assembly; 344. The second support member; 4. The robot; 5. The loading station; 6. The unloading station; 7. The parts sensing sensor; 8. The parts tray; 9. The tray baffle; 10. The turntable sensing sensor. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0032] Reference Figure 2-17 As shown, an embodiment of the present application provides a product final inspection machine, which includes a stand 1 and an external inspection module 2, an internal inspection module 3 and a robot 4 arranged on the stand 1.

[0033] Reference Figure 2-3 As shown, the stand 1 includes a horizontally arranged detection table 11 , and the external detection module 2 , the internal detection module 3 and the robot 4 are all arranged on the detection table 11 .

[0034] Reference Figure 3-5 As shown, the external detection module 2 includes a transfer mechanism 21 and a mixing detection mechanism 22, a spline detection mechanism 23, an outer diameter detection mechanism 24, a length detection mechanism 25 and a helical tooth detection mechanism 26 which are arranged in sequence. The mixing detection mechanism 22 is used to detect the part model, the spline detection mechanism 23 is used to detect the passability of the part spline, the outer diameter detection mechanism 24 is used to detect the part outer diameter, the length detection mechanism 25 is used to detect the part length, the helical tooth detection mechanism 26 is used to detect the helical tooth parameters of the part, and the transfer mechanism 21 is used to transfer the parts in the previous process to the next process.

[0035] Reference Figure 3 and Figure 12-13 As shown, the internal detection module 3 includes a turntable conveying mechanism 31 and an inner hole detection mechanism 32, a thread detection mechanism 33 and an inner diameter detection mechanism 34 which are arranged in sequence. The inner hole detection mechanism 32 is used to detect the passability of the inner hole of the part, the thread detection mechanism 33 is used to detect the thread size of the part, and the inner diameter detection mechanism 34 is used to detect the diameter of the inner hole of the part. The turntable conveying mechanism 31 is used to convey the parts and make the parts pass through the inner hole detection mechanism 32, the thread detection mechanism 33 and the inner diameter detection mechanism 34 in sequence.

[0036] Reference Figure 2-3 As shown, the robot 4 is used to transfer the parts to be tested from the material tray to the mixing detection mechanism 22, and to transfer the parts after detection in the helical gear detection mechanism 26 to the turntable conveying mechanism 31, and to remove the parts after detection in the turntable conveying mechanism 31.

[0037] Reference Figure 6As shown, the mixing detection mechanism 22 includes a first supporting component 221 and a code scanning component. The first supporting component 221 is used to support the part in a horizontal axis state and drive the part to rotate, and the code scanning component is used to identify the QR code on the part. Specifically, the first support assembly 221 includes two groups of first support roller groups 2211, and the two groups of first support roller groups 2211 are spaced apart along a horizontal first straight line direction. The first support roller group 2211 includes two first rollers 22111 whose axes are parallel to the first straight line direction. The first rollers 22111 can be rotatably installed on the detection table 11. The two first rollers 22111 are spaced apart along a second straight line direction that is horizontal and perpendicular to the first straight line direction. The distance between the two first rollers 22111 is smaller than the end diameter of the part, so that the end of the part can be placed between the two first rollers 22111. One end of the part is supported by the two first rollers 22111 of one first support roller group 2211, and the other end of the part is supported by the two first rollers 22111 of the other first support roller group 2211. The two first support roller groups 2211 support both ends of the part and keep the part in a horizontal state, and the axes of the part are parallel to the first straight line direction when the part is on the two first support roller groups 2211.

[0038] Reference Figure 6 As shown, two first rollers 22111 of one first supporting roller group 2211 are coaxially connected with pulleys respectively, and the first supporting assembly 221 also includes a first motor 2212, and a pulley is also connected to the output shaft of the first motor 2212. The pulley on the output shaft of the first motor 2212 is connected to the two pulleys respectively through two belts, so that the two first rollers 22111 of the first supporting roller group 2211 are driven to rotate through the cooperation of the first motor 2212 and the belt and the pulley, so that the rotation of the first roller 22111 drives the parts to rotate, thereby achieving the purpose of driving the parts to rotate, so as to ensure that the code scanning assembly can scan the QR code.

[0039] Reference Figure 6 As shown, the code scanning component includes a code scanning gun 222 and a first lighting ring 223. The first lighting ring 223 illuminates the part QR code area, and the code scanning gun 222 scans the part QR code through the center hole of the first lighting ring 223. The mixed material detection mechanism 22 also includes a second visual detection component 224. The second visual detection component 224 includes a camera. The camera is used to capture the side image of the bevel tooth segment of the part, and the camera is connected to the control system. The control system receives the image captured by the camera and analyzes and processes the image to determine the rotation direction of the bevel tooth, thereby further avoiding mixing.

[0040] Reference Figure 6As shown, the mixing detection mechanism 22 also includes a first proximity switch 225, which is located between the two first support roller groups 2211. When the part is placed on the two first support roller groups 2211, the spur tooth segment of the part is located directly above the first proximity switch 225. When the part rotates, its gear teeth can trigger the first proximity switch 225, while the tooth groove area does not trigger the first proximity switch 225. Therefore, the number of gear teeth can be obtained according to the number of times the first proximity switch 225 is triggered when the part rotates one circle, thereby realizing the detection of the number of teeth of the spur tooth segment of the part.

[0041] Reference Figure 7 As shown, the spline detection mechanism 23 includes a second support assembly 231 and a spline gauge 232. The second support assembly 231 is arranged on the stand 1 to support the part with its axis horizontal and drive the part to rotate. The part is restricted from axial movement when it is on the second support assembly 231. The spline gauge 232 is arranged on the stand 1 with its axis horizontal. The spline gauge 232 and the second support assembly 231 are spaced apart in the axial direction of the spline gauge 232. When the part is on the second support assembly 231, it is coaxial with the spline gauge 232 and the spline end faces the spline gauge 232. A first drive assembly 233 for driving the spline gauge 232 to move axially is provided on the stand 1. A pressure sensor 234 is provided between the spline gauge 232 and the first drive assembly 233. The pressure sensor 234 is used to detect the pressure between the spline gauge 232 and the first drive assembly 233 in the axial direction of the spline gauge 232.

[0042] During detection, the second supporting assembly 231 rotates the part, and drives the spline gauge 232 to move close to the part through the first driving assembly 233, so that the part spline can smoothly enter into a mating state with the spline gauge 232. If the part spline is qualified, the part spline can completely pass through the spline gauge 232. Therefore, under the set stroke, if the pressure sensor 234 detects that the pressure data does not change significantly; when the part is unqualified, the part spline cannot completely pass through the spline gauge 232, and the spline gauge 232 will abut against the part when moving, and the pressure sensor 234 detects that the pressure data will increase. Therefore, whether the part spline is qualified can be judged based on the change in the data of the pressure sensor 234.

[0043] Reference Figure 7As shown, specifically, the second support assembly 231 includes a second support roller group 2311 and a first support seat 2312 that are spaced apart along the first straight line direction, the second support roller group 2311 includes two second rollers whose axes are parallel to the first straight line direction, the second rollers are rotatably mounted on the detection table 11, the two second rollers are spaced apart along the second straight line direction, the distance between the two second rollers is smaller than the middle diameter of the part, so that the middle of the part can be placed between the two second rollers and supported; a groove for embedding the end of the part is provided on the top of the first support seat 2312, and the part is supported by the first support seat 2312 and the second support roller group 2311, so that the part maintains a horizontal axis and a state parallel to the first straight line direction.

[0044] Reference Figure 7 As shown, in order to drive the part to rotate, the second support assembly 231 also includes a first clamp 2313 and a second motor 2314. The first clamp 2313 is used to clamp the threaded end of the part, and the second motor 2314 is used to drive the first clamp 2313 to rotate. When the part is on the second support roller group 2311 and the first support seat 2312, it is coaxial with the output shaft of the second motor 2314, so that the part is clamped by the first clamp 2313 and the first clamp 2313 is driven to rotate by the second motor 2314, thereby driving the part to rotate.

[0045] Reference Figure 7 As shown, the first driving component 233 can adopt a sliding cylinder, and a first mounting block is connected to the sliding table of the sliding cylinder. The spline gauge 232 is connected to the first mounting block through a pressure sensor 234 to detect the pressure data of the spline gauge 232 and the first mounting block in the axial direction of the spline gauge 232 through the pressure sensor 234.

[0046] Reference Figure 7 As shown, after completing the inspection of a part, in order to disengage the part from the spline go gauge 232, an ejector rod 235 is provided on the first mounting block. The ejector rod 235 is coaxial with the spline go gauge 232 and can pass through the spline go gauge 232. A cylinder for driving the ejector rod 235 to move axially is installed on the first mounting block, so as to eject the part passing through the spline go gauge 232 through the ejector rod 235, thereby preventing the part and the spline go gauge 232 from getting stuck and affecting the normal inspection work.

[0047] Reference Figure 8As shown, the outer diameter detection mechanism 24 includes a pneumatic outer diameter probe 241 and a second drive assembly 242. The pneumatic outer diameter probe 241 is arranged on the stand 1 to support the part in a horizontal axis state and measure the outer diameter of the part, and the second drive assembly 242 is arranged on the stand 1 to drive the part to rotate. Specifically, the measuring slot of the pneumatic outer diameter probe 241 is arranged upward, and the part can be placed in the measuring slot of the pneumatic outer diameter probe 241 from top to bottom. The pneumatic outer diameter probe 241 directly supports the part and performs the outer diameter detection work of the part.

[0048] Reference Figure 8 As shown, the second driving assembly 242 includes a second jaw 2421 and a third motor 2422. The second jaw 2421 is used to clamp the threaded end of the part, and the third motor 2422 is used to drive the second jaw 2421 to rotate. When the part is on the pneumatic outer diameter probe 241, it is coaxial with the output shaft of the second motor 2314, so that the part is clamped by the second jaw 2421 and the second jaw 2421 is driven to rotate by the third motor 2422 to drive the part to rotate.

[0049] Reference Figure 8 As shown, in this embodiment, multiple areas distributed along the axial direction on the part need to detect the outer diameter. Therefore, multiple pneumatic outer diameter probes 241 are provided. The multiple pneumatic outer diameter probes 241 are distributed at intervals along the first straight line direction and correspond one-to-one to the areas on the part that need to detect the outer diameter, so that the outer diameters of multiple areas can be measured by multiple pneumatic outer diameter probes 241.

[0050] Reference Fig. 9 As shown, the length detection mechanism 25 includes a third support assembly 251 and a length sensor 252. The third support assembly 251 is arranged on the stand 1 to support the part with its axis horizontal and limit the axial movement of the part. The length sensor 252 is arranged on the stand 1 with its axis horizontal. The length sensor 252 and the third support assembly 251 are spaced apart in the axial direction of the length sensor 252, and the measuring end of the length sensor 252 faces the third support assembly 251. When the part is on the third support assembly 251, it is coaxial with the length sensor 252. The stand 1 is provided with a third driving assembly 253 for driving the length sensor 252 to move axially.

[0051] Reference Fig. 9As shown, specifically, the third support assembly 251 includes a length measuring table 2511, on which three second support seats 2512 are arranged at intervals along the first straight line direction, and a groove for the part to be embedded is arranged on the top of the second support seat 2512, and the grooves on the top of the three second support seats 2512 are respectively adapted to the diameters of the three regions in the axial direction of the part to stably support the part. In order to limit the axial movement of the part, a clamping plate 2513 is arranged on the second support seat 2512 located in the middle, and the clamping plate 2513 is arranged perpendicular to the first straight line direction. The top of the clamping plate 2513 is also provided with a groove for the part to be embedded. The clamping plate 2513 is arranged so that when the part is placed on the three second support seats 2512, the clamping plate 2513 is embedded in the annular groove formed between the spline segment on the part and the region where the two-dimensional code is located, so as to limit the axial movement of the part through the clamping plate 2513.

[0052] Reference Fig. 9 As shown, when the length sensor 252 is set, a second mounting block is installed on the stand 1, and the second mounting block is movably set along the first straight line direction on the detection table 11 through the cooperation of a slider and a slide rail. Two support plates 254 are provided on the second mounting block, and the two support plates 254 are spaced apart along the first straight line direction. The length sensor 252 is installed on the support plate 254 farther away from the length measuring table 2511, and a touch rod 255 is provided on the support plate 254 closer to the length measuring table 2511. The touch rod 255 is coaxial with the length sensor 252 and can move axially relative to the support plate 254. The touch rod 255 is connected to a contact 256 for contacting a part at one end away from the length sensor 252, and directly contacts the part through the touch rod 255 instead of the length sensor 252. A first spring 257 is provided between the feeler rod 255 and the support plate 254 on which the length sensor 252 is installed. The first spring 257 is coaxially sleeved outside the length sensor 252. A stop block is coaxially sleeved on the feeler rod 255. The first spring 257 is located between the stop block and the support plate 254 on which the length sensor 252 is installed, and the two ends of the first spring 257 are respectively against the stop block and the support plate 254. During detection, the third driving component 253 drives the feeler rod 255 and the length sensor 252 to move axially close to the part. Through the feeler rod 255 contacting the part, the feeler rod 255 is driven by the part to move close to the length sensor 252 and trigger the length sensor 252, so as to achieve the purpose of measuring the length between the end face of the threaded end of the part and the end face of the two-dimensional code segment close to the spline segment. At this time, the first spring 257 is compressed; after the measurement is completed, the feeler rod 255 is restored to the initial position under the elastic force of the first spring 257, so as to carry out subsequent measurement work.

[0053] Reference Fig. 9As shown, the third driving assembly 253 may be a cylinder, which drives one of the support plates 254 to move along the first straight line direction, driving the length sensor 252 and the feeler rod 255 to move, thereby realizing the function of automatically measuring the length of the part.

[0054] Reference Fig.10 As shown, the helical gear detection mechanism 26 includes a fourth support assembly 261 and a first visual detection assembly 262. The fourth support assembly 261 is arranged on the stand 1 to support the part in a horizontal axis state, and the first visual detection assembly 262 is arranged on the stand 1 to detect the helical gear parameters of the part. Specifically, the fourth support assembly 261 includes a helical gear measuring platform 2611, and the helical gear measuring platform 2611 is provided with two third support seats 2612 spaced apart along the first straight line direction, and the top of the third support seat 2612 is provided with a groove for the part to be embedded, so as to stably support the part through the two third support seats 2612. The first visual detection assembly 262 also includes a camera connected to the control system, and the camera is used to take the end face image of the helical gear segment of the part from the threaded end of the part. The control system receives the image taken by the camera and analyzes and processes the image to obtain various parameters of the helical gear. The specific parameters may include the tooth top circle diameter, the tooth root circle diameter, the pitch circle diameter, the number of teeth and other parameters, which are determined according to actual needs.

[0055] Reference Fig.10 As shown, a second lighting ring 263 is provided on the testing table 11, the axis of the second lighting ring 263 is parallel to the first straight line direction, and the second lighting ring 263 can move relative to the testing table 11 along the axial direction. In this embodiment, the second lighting ring 263 is driven to move by the slide cylinder. When the part is placed on the helical gear testing table 2611, the slide cylinder drives the second lighting ring 263 to move outside the helical gear segment surrounding the part, and the second lighting ring 263 fills the helical gear segment of the part with light. The camera takes the image of the part through the center hole of the second lighting ring 263 to ensure the clarity of the image taken by the camera.

[0056] Reference Figure 4-5 As shown, in order to realize the function of the transfer mechanism 21 to transfer the parts in the previous process to the next process, the mixing detection mechanism 22, the spline detection mechanism 23, the outer diameter detection mechanism 24, the length detection mechanism 25 and the helical gear detection mechanism 26 are distributed in sequence along the second straight line direction. When the parts are in each mechanism, the axis is parallel to the first straight line direction, and the inner hole ends of the parts are facing the same direction.

[0057] Reference Figure 4 and Fig.11As shown, the transfer mechanism 21 includes at least one third clamp 211, and the third clamp 211 is used to grab parts whose axis is parallel to the first straight line direction. The third clamp 211 can move vertically and along the second straight line direction. The third clamp 211 is moved vertically to grab or put down the parts located in the mixing detection mechanism 22, the spline detection mechanism 23, the outer diameter detection mechanism 24, the length detection mechanism 25 and the helical gear detection mechanism 26, and the third clamp 211 is moved along the second straight line direction to transfer the parts from the previous process to the next process.

[0058] Reference Fig.11 As shown, specifically, the function of the third clamping jaw 211 moving along the second straight line direction can be realized by the linear module, and the vertical movement function can be realized by the slide cylinder. The third clamping jaw 211 is installed on the transfer support, the transfer support is connected to the slide of the slide cylinder, and the slide cylinder body is connected to the slide of the linear module, so that the third clamping jaw 211 can be moved vertically and moved along the second straight line direction, and the automatic control of the part transfer function can be realized. In order to improve efficiency, four third clamping jaws 211 can be set, and the four third clamping jaws 211 are distributed at intervals along the second straight line direction. The four third clamping jaws 211 can synchronously grab the parts in the first four adjacent mechanisms of the mixing detection mechanism 22, the spline detection mechanism 23, the outer diameter detection mechanism 24, the length detection mechanism 25 and the helical gear detection mechanism 26, and synchronously transfer the four parts to the last four adjacent mechanisms, thereby improving the part transfer efficiency and improving work efficiency.

[0059] Reference Figure 8 As shown, since the diameters of multiple regions of the parts need to be detected in the outer diameter detection mechanism 24, wherein the region clamped by the clamp needs to be measured for outer diameter, in order to enable the clamp to smoothly grasp the parts in the mechanism, the outer diameter detection mechanism 24 also includes a material lifting device 243 disposed on the detection table 11. The material lifting device 243 includes a support shaft 2431 and two lifting claws 2432 spaced apart along the first straight line direction, the two lifting claws 2432 are respectively located on both sides of a pneumatic outer diameter probe 241, the support shaft 2431 connects the two lifting claws 2432, and the material lifting device 243 can be vertically lifted and lowered, and the specific lifting and lowering is realized by a slide cylinder, and the support shaft 2431 is fixed on the slide of the slide cylinder. In this way, the two lifting claws 2432 can be driven to rise and fall by the slide cylinder to lift or lower the parts located in the multiple pneumatic outer diameter measuring heads 241. The third clamping jaw 211 grabs the parts from the lifting claws 2432, or places the parts on the lifting claws 2432, and the lifting claws 2432 put them into the pneumatic outer diameter measuring heads 241.

[0060] After the parts are inspected by the external inspection module 2 , the inspected parts are grabbed by the robot 4 in the helical gear inspection mechanism 26 and transferred to the internal inspection module 3 .

[0061] Reference Figure 12-14 As shown, the turntable conveying mechanism 31 includes a turntable 311 connected to the stand 1, the axis of the turntable 311 is vertical and can rotate around its axis, and a plurality of fifth support assemblies 313 are provided on the turntable 311, the fifth support assemblies 313 are used to support parts with vertical axis and threaded ends facing upward, and the plurality of fifth support assemblies 313 are distributed at intervals along the circumference of the turntable 311. The stand 1 is provided with a plurality of workstations, and the plurality of workstations are distributed at intervals along the circumference of the turntable 311. When the turntable 311 rotates to any fifth support assembly 313 located in a workstation, the plurality of fifth support assemblies 313 are located in a plurality of workstations in a one-to-one correspondence, and the inner hole detection mechanism 32, the thread detection mechanism 33 and the inner diameter detection mechanism 34 are respectively provided in a workstation and are distributed in sequence in the conveying direction of the turntable 311.

[0062] Reference Fig.14 As shown, specifically, the turntable 311 is driven to rotate by the divider 312 to convey the parts. The turntable 311 is provided with a through hole for the fifth support assembly 313 to be installed. The fifth support assembly 313 includes a bushing 3131 and a positioning sleeve 3132. The bushing 3131 is arranged in the through hole and fixed to the turntable 311. The axis of the bushing 3131 is vertical. The inner diameter of the bushing 3131 is consistent with the outer diameter of the spline section of the part and is smaller than the outer diameter of the largest diameter part in the middle of the part, so that the part can be stably placed in the bushing 3131. The positioning sleeve 3132 is located below the turntable 311 and is coaxial with the bushing 3131. The top of the positioning sleeve 3132 is fixed to the turntable 311. The bottom of the positioning sleeve 3132 is set to gradually reduce the inner diameter from top to bottom. The minimum inner diameter of the bottom of the positioning sleeve 3132 is consistent with the outer diameter of the inner hole end of the part, so that the inner hole end of the part can pass through the positioning sleeve 3132, so that the bushing 3131 and the positioning sleeve 3132 cooperate to position and support the part. The robot 4 places the part in the fifth supporting assembly 313 with the axis vertical and the inner hole end facing downward.

[0063] Reference Figure 12-13 As shown, among the multiple stations on the platform 1, there are a loading station 5 and an unloading station 6, which are arranged adjacent to each other and distributed in the direction opposite to the conveying direction of the turntable 311. Part sensing sensors 7 are respectively arranged under the turntable 311 in the loading station 5 and the unloading station 6. When the part moves with the turntable 311 in the fifth support assembly 313 to the loading station 5 and the unloading station 6, the part sensing sensors 7 are triggered, thereby judging that the part is in place. The robot 4 puts the part into the fifth support assembly 313 in the loading station 5, and removes the detected part in the fifth support assembly 313 in the unloading station 6.

[0064] Reference Fig.15As shown, the inner hole detection mechanism 32 includes a first support member 321, a plug gauge 322 and a first detection assembly. The first support member 321 is connected to the stand 1 and is located above the turntable 311. The first support member 321 is used to limit the upward movement of the part above the part. The plug gauge 322 is connected to the stand 1, and the plug gauge 322 is located below the turntable 311 with a vertical axis. When the part moves with the turntable 311 to the station where the inner hole detection mechanism 32 is located, it is located between the first support member 321 and the plug gauge 322, and the plug gauge 322 is coaxial with the inner hole of the part. The plug gauge 322 is connected to the stand 1 through a first connection structure. The first connection structure includes a first connection seat 323 and a fourth drive assembly 324. The first connection seat 323 can move relative to the stand 1 along the axial direction of the plug gauge 322. The fourth drive assembly 324 is used to drive the first connection seat 323 to move. The plug gauge 322 is connected to the first connection seat 323. The plug gauge 322 can move relative to the first connection seat 323 along its axial direction. It is suitable that when the plug gauge 322 moves upward with the first connection seat 323 close to the part and reaches the maximum depth when inserted into the inner hole of the unqualified part, the plug gauge 322 is restricted by the part and continues to move with the first connection seat 323. The first detection assembly includes a first reference piece 325 and a first laser displacement sensor 326 distributed at intervals along the axial direction of the plug gauge 322. The first reference piece 325 is connected to the stand 1. The first laser displacement sensor 326 is relatively fixed to the plug gauge 322. The first laser displacement sensor 326 is used to detect the distance between it and the first reference piece 325 in the axial direction of the plug gauge 322.

[0065] When testing the passability of the inner hole, the part is transported between the first support member 321 and the plug gauge 322. The first support member 321 limits the upward movement of the part at the top of the part. The plug gauge 322 is located below the part. The first connecting seat 323 is driven upward by the fourth driving assembly 324, driving the plug gauge 322 to move upward and be inserted into the inner hole of the part to perform the passability test of the inner hole. When the inner hole of the part is qualified, the plug gauge 322 moves upward from the lowest position to the highest position with the first connecting seat 323, and the plug gauge 322 can be completely inserted into the inner hole of the part, the plug gauge 322 does not move relative to the first connecting seat 323, and the distance between the plug gauge 322 and the first reference part 325 detected by the first laser displacement sensor 326 does not change; when the inner hole of the part is unqualified, the plug gauge 322 moves upward from the lowest position to the highest position with the first connecting seat 323, and the plug gauge 322 is partially inserted into the inner hole of the part and abuts against the part, and the part prevents the plug gauge 322 from continuing to move upward with the first connecting seat 323, so that the plug gauge 322 moves relative to the first connecting seat 323, and the distance between the plug gauge 322 and the first reference part 325 detected by the first laser displacement sensor 326 changes. According to whether the distance between the plug gauge 322 and the first reference part 325 detected by the first laser displacement sensor 326 changes, it is judged whether the passability of the inner hole of the part is qualified.

[0066] Reference Fig.15 As shown, specifically, the plug gauge 322 is connected to the first connecting seat 323 through the first mounting seat 327, the first mounting seat 327 can move relative to the first connecting seat 323 in the vertical direction, and the first laser displacement sensor 326 is fixed on the first mounting seat 327. The stand 1 is provided with a first support for mounting the inner hole detection mechanism 32, and the first connecting seat 323 is connected to the support and can move relative to the support in the vertical direction. The movable connection between the first connecting seat 323 and the support in the vertical direction, and the movable connection between the first mounting seat 327 and the first connecting seat 323 in the vertical direction are respectively realized by the cooperation of the guide rail and the slider, and the fourth driving component 324 adopts a cylinder to realize the function of driving the first connecting seat 323 to move. The cylinder is located below the detection table 11 to reduce the occupation of the upper space.

[0067] Reference Fig.15 As shown, after each part is inspected, in order to restore the relative position of the first mounting seat 327 and the first connecting seat 323 to the initial state, a first support block 328 is provided on the first connecting seat 323 below the first mounting seat 327, and a second spring 329 is provided between the first mounting seat 327 and the first support block 328. After the plug gauge 322 is inserted into the inner hole of the unqualified part to the maximum depth, the first mounting seat 327 and the first support seat 2312 are relatively moved under the obstruction of the part, and the first mounting seat 327 compresses the second spring 329. After the plug gauge 322 is separated from the part, the relative position of the first mounting seat 327 and the first connecting seat 323 is restored to the initial state by the elastic force of the second spring 329, that is, the relative position of the plug gauge 322 and the first laser displacement sensor 326 and the first connecting seat 323 is restored to the initial state, so as to carry out the subsequent part inspection.

[0068] Reference Fig.15 As shown, the first support member 321 is a cylindrical block with a vertical axis, and a positioning hole is set at the bottom for the threaded end of the part to be embedded. The first support member 321 is set to be vertically movable, and the first support member 321 is driven to move vertically by the slide cylinder. When the part reaches below the first support member 321, the slide cylinder drives the first support member 321 to descend until the threaded end of the part is embedded in the positioning hole, and the first support member 321 presses the part to limit the part from being driven upward by the plug gauge 322, ensuring that the plug gauge 322 is fully inserted into the inner hole of the part to complete the inspection.

[0069] Through the above arrangement, after the part is transported from the turntable 311 to the inner hole detection mechanism 32, the inner hole detection mechanism 32 automatically operates to perform the inner hole detection work, thereby realizing the automation of the part inner hole detection work.

[0070] Reference Fig.16As shown, the thread detection mechanism 33 includes a fourth clamp 331, a thread gauge 332 and a second laser displacement sensor 333. The fourth clamp 331 is connected to the stand 1 and is located above the turntable 311. The fourth clamp 331 is used to clamp the part to limit the rotation of the part. The thread gauge 332 is connected to the stand 1. The thread gauge 332 is located above the turntable 311 and the axis is vertical. When the part moves with the turntable 311 to the position where the thread detection mechanism 33 is located, it is located below the thread gauge 332, and the part thread is coaxial with the thread gauge 332. The thread gauge 332 is connected to the stand 1 through a second connection structure, the second connection structure includes a second connection seat 334 and a second mounting seat 335, the second connection seat 334 is connected to the stand 1 and can move relative to the stand 1 along the axial direction of the thread gauge 332, the second mounting seat 335 is connected to the second connection seat 334 and can move relative to the second connection seat 334 along the axial direction of the thread gauge 332, the thread gauge 332 is connected to the second mounting seat 335, a fifth driving assembly 336 for driving the second connection seat 334 to move is provided between the second connection seat 334 and the stand 1, and a sixth driving assembly 337 for driving the thread gauge 332 to rotate around its own axis is provided between the second mounting seat 335 and the thread gauge 332. The second laser displacement sensor 333 is connected to the second connection seat 334, and the second laser displacement sensor 333 is used to detect the distance between it and the second mounting seat 335 in the axial direction of the plug thread gauge 332. Among them, it is suitable that when the thread gauge 332 rotates and moves downward with the second mounting seat 335 and the second connecting seat 334 towards the part, when the thread gauge 332 and the unqualified part reach the maximum degree of fit, the thread gauge 332 and the second mounting seat 335 are restricted by the part to continue to move with the second connecting seat 334.

[0071] When inspecting the thread of a part, when the part is transported to the workstation where the thread inspection mechanism 33 is located, it is located below the thread gauge 332 and coaxial with the thread gauge 332. The fourth clamp 331 clamps the part to limit the rotation of the part, the sixth drive assembly 337 drives the thread gauge 332 to rotate, and the fifth drive assembly 336 drives the second connecting seat 334 to move downward, driving the second mounting seat 335 and the thread gauge 332 to move downward to cooperate with the part thread. When the thread size of the part is qualified, the thread gauge 332 moves downward from the highest position to the lowest position with the second connecting seat 334, and the thread gauge 332 can fully match with the thread of the part, the thread gauge 332 does not move relative to the second connecting seat 334, and the distance between the second laser displacement sensor 333 and the second mounting seat 335 does not change; when the thread size of the part is unqualified, the thread gauge 332 moves upward from the highest position to the lowest position with the second connecting seat 334, and the thread gauge 332 cannot fully match with the thread of the part, and after reaching the maximum degree of matching, it abuts against the part, and the part prevents the thread gauge 332 and the second mounting seat 335 from continuing to move downward with the second connecting seat 334, so that the thread gauge 332 and the second mounting seat 335 move relative to the second connecting seat 334, and the distance between the second laser displacement sensor 333 and the second mounting seat 335 changes. Whether the thread passability of the part is qualified can be judged according to whether the distance between the second laser displacement sensor 333 and the second mounting seat 335 changes.

[0072] Reference Fig.16 As shown, specifically, a second support mounted with a thread detection mechanism 33 is provided on the stand 1, and a second connecting seat 334 is connected to the second support and can move vertically relative to the second support. The fifth driving assembly 336 adopts a linear module to realize the function of driving the second connecting seat 334 to vertically rise and fall, and the sixth driving assembly 337 adopts a motor to drive the thread gauge 332 to rotate through the motor.

[0073] Reference Fig.16As shown, after the inspection of each part is completed, in order to restore the relative position of the second mounting seat 335 that moves relative to the second connecting seat 334 and the second connecting seat 334 to an initial state, a second supporting block 338 is provided on the second connecting seat 334 below the second mounting seat 335, and a third spring 339 is provided between the second mounting seat 335 and the second supporting block 338, and both ends of the third spring 339 are respectively fixed to the second mounting seat 335 and the second supporting block 338. After the thread gauge 332 and the thread of the unqualified part reach the maximum degree of fit, the second mounting seat 335 and the second support seat 2512 are relatively moved due to the obstruction of the part, and the second mounting seat 335 will pull the third spring 339 to stretch the third spring 339. After the thread gauge 332 is separated from the part, the elastic force of the third spring 339 restores the relative position of the second mounting seat 335 and the second connecting seat 334 to the initial state, that is, the relative position of the thread gauge 332 and the second laser displacement sensor 333 and the second connecting seat 334 is restored to the initial state, so as to carry out subsequent parts inspection.

[0074] Through the above arrangement, after the part is transported from the turntable 311 to the thread detection mechanism 33, the thread detection mechanism 33 automatically operates to perform thread detection, thereby realizing automation of the part thread detection work.

[0075] Reference Fig.17 As shown, the inner diameter detection mechanism 34 includes a pneumatic inner diameter probe 341 and a third connection seat 342. The pneumatic inner diameter probe 341 is arranged on the stand 1. The pneumatic inner diameter probe 341 is located below the turntable 311 and its axis is vertical. When the part moves with the turntable 311 to the station where the inner diameter detection mechanism 34 is located, it is located above the pneumatic inner diameter probe 341, and the inner hole of the part is coaxial with the pneumatic inner diameter probe 341. The pneumatic inner diameter probe 341 is connected to the stand 1 through the third connection seat 342. The third connection seat 342 can move relative to the stand 1 along the axis of the pneumatic inner diameter probe 341. The stand 1 is provided with a seventh drive assembly 343 for driving the third connection seat 342 to move.

[0076] Reference Fig.17 As shown, the inner diameter detection mechanism 34 further includes a second support member 344, which is disposed above the turntable 311 and is used to limit the upward movement of the parts above the parts. The second support member 344 is a cylindrical block. When the parts are transported to the station where the inner diameter detection mechanism 34 is located, they are located between the second support member 344 and the pneumatic inner diameter probe 341. The second support member 344 is also configured to be vertically movable and is driven to move vertically by a cylinder.

[0077] During inspection, when the part is transported to the workstation where the inner diameter detection mechanism 34 is located, it is located above the pneumatic inner diameter probe 341 and coaxial with the pneumatic inner diameter probe 341. The second support member 344 descends to contact the part. The pneumatic inner diameter probe 341 is driven upward by the seventh drive assembly 343 to be inserted into the inner hole of the part. The pneumatic inner diameter probe 341 measures the diameter of the inner hole of the part. The measured data is compared with the standard data to determine whether the inner hole of the part is qualified.

[0078] Reference Fig.17 As shown, specifically, a third support for mounting the inner diameter detection mechanism 34 is provided on the stand 1, and a third connecting seat 342 is connected to the third support and can move vertically relative to the third support. The seventh driving assembly 343 adopts a linear module to realize the function of driving the third supporting seat 2612 and the pneumatic inner diameter measuring head 341 thereon to move axially.

[0079] Reference Figure 1 As shown, since the inner hole of the part includes two regions with different diameters, the two regions with different diameters need to be inspected by the adapted plug gauge 322 respectively. Figure 3 and Figure 12-13 As shown, in this embodiment, two inner hole detection mechanisms 32 and two inner diameter detection mechanisms 34 are respectively provided. The two inner hole detection mechanisms 32 are respectively provided in two adjacent workstations to respectively detect the passability of two sections with different inner hole diameters of the part. The two inner diameter detection mechanisms 34 are respectively provided in two adjacent workstations to respectively detect the diameters of two sections with different inner hole diameters of the part.

[0080] Reference Figure 2-3 As shown, further, two part trays 8 are arranged on the inspection table 11, and the part trays 8 are arranged horizontally and can move along the first straight line direction. The two part trays 8 are used as a part loading tray and a part unloading tray respectively. The part loading tray is arranged near the external inspection module 2, and the part unloading tray is arranged near the internal inspection module 3. The movable arrangement of the part tray 8 is realized by the cooperation of the guide rail and the slider, and the guide rail extends outside the inspection table 11, so that the personnel can place the part turnover tray 311 on the part loading tray or take out the part turnover tray 311 from the part unloading tray outside the inspection table 11. In addition, a tray baffle 9 and a turnover tray 311 sensing sensor are arranged on the inspection table 11. When the tray moves to contact with the tray baffle 9, the positioning of the tray is completed. At this time, the tray is at the position where the robot 4 grabs or puts the parts, and the turnover tray 311 sensing sensor senses whether there is a turnover tray 311 on the tray.

[0081] Through the above-mentioned settings, the present application can realize the automation of loading and unloading of parts and the transfer between various inspection processes, complete the inspection of various parameters of the parts in sequence, and automatically complete the inspection of the parts in each mechanism. There is no mutual interference between the inspection mechanisms, and multiple parts can be inspected at the same time, realizing the automation of batch parts inspection, effectively improving the inspection efficiency, and thus quickly completing the inspection of batch parts.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A product final inspection machine, characterized in that: include: Stand; The external detection module (2) is arranged on the platform (1), and comprises a transfer mechanism (21) and a mixing detection mechanism (22), a spline detection mechanism (23), an outer diameter detection mechanism (24), a length detection mechanism (25) and a helical tooth detection mechanism (26) which are arranged in sequence, wherein the mixing detection mechanism (22) is used to detect the part model, the spline detection mechanism (23) is used to detect the passability of the part spline, the outer diameter detection mechanism (24) is used to detect the part outer diameter, the length detection mechanism (25) is used to detect the part length, the helical tooth detection mechanism (26) is used to detect the helical tooth parameters of the part, and the transfer mechanism (21) is used to transfer the part in the previous process to the next process; An internal detection module (3) arranged on the platform (1), comprising a turntable conveying mechanism (31) and an inner hole detection mechanism (32), a thread detection mechanism (33) and an inner diameter detection mechanism (34) arranged in sequence, wherein the inner hole detection mechanism (32) is used to detect the passability of the inner hole of the part, the thread detection mechanism (33) is used to detect the thread size of the part, and the inner diameter detection mechanism (34) is used to detect the diameter of the inner hole of the part, and the turntable conveying mechanism (31) is used to convey the part and make the part pass through the inner hole detection mechanism (32), the thread detection mechanism (33) and the inner diameter detection mechanism (34) in sequence; A robot (4) is arranged on the platform (1) and is used to transfer the parts to be tested from the material tray to the mixing detection mechanism (22), to transfer the parts tested in the bevel gear detection mechanism (26) to the turntable conveying mechanism (31), and to remove the parts tested in the turntable conveying mechanism (31).

2. The product final inspection machine according to claim 1, characterized in that: The mixing detection mechanism (22) comprises: A first support assembly (221) is arranged on the stand (1) and is used to support a part with its axis horizontal and drive the part to rotate; A code scanning component is arranged on the stand (1) and is used to identify a two-dimensional code on a part.

3. The product final inspection machine according to claim 1, characterized in that: The spline detection mechanism (23) comprises: A second support assembly (231) is arranged on the stand (1) and is used to support a part with its axis horizontal and drive the part to rotate. When the part is on the second support assembly (231), axial movement is restricted; A spline go gauge (232) is arranged on the stand (1) with its axis horizontal; the spline go gauge (232) and the second support assembly (231) are spaced apart in the axial direction of the spline go gauge (232); when the part is on the second support assembly (231), it is coaxial with the spline go gauge (232) and the spline end faces the spline go gauge (232); a first drive assembly (233) for driving the spline go gauge (232) to move axially is provided on the stand (1); a pressure sensor (234) is provided between the spline go gauge (232) and the first drive assembly (233); the pressure sensor (234) is used to detect the pressure between the spline go gauge (232) and the first drive assembly (233) in the axial direction of the spline go gauge (232).

4. The product final inspection machine according to claim 1, characterized in that: The outer diameter detection mechanism (24) comprises: A pneumatic outer diameter measuring head (241), which is arranged on the stand (1) and is used to support a part in a horizontal axis state and measure the outer diameter of the part; A second driving assembly (242) is disposed on the stand (1) and is used to drive the parts to rotate.

5. The product final inspection machine according to claim 1, characterized in that: The length detection mechanism (25) comprises: A third support assembly (251) is arranged on the stand (1) and is used to support the part in a horizontal axis state and limit the axial movement of the part; A length sensor (252) is arranged on the stand (1) with its axis horizontal; the length sensor (252) and the third support assembly (251) are spaced apart in the axial direction of the length sensor (252); the measuring end of the length sensor (252) faces the third support assembly (251); when the part is on the third support assembly (251), it is coaxial with the length sensor (252); and the stand (1) is provided with a third drive assembly (253) for driving the length sensor (252) to move along the axial direction.

6. The product final inspection machine according to claim 1, characterized in that: The helical gear detection mechanism (26) comprises: A fourth support assembly (261), which is arranged on the stand (1) and is used to support the parts in a horizontal axis state; A first visual inspection component (262) is arranged on the stand (1) and is used to inspect the helical gear parameters of a part.

7. The product final inspection machine according to claim 1, characterized in that: The turntable conveying mechanism (31) comprises a turntable (311) connected to the platform (1), the axis of the turntable (311) is vertical and can rotate around its axis, a plurality of fifth support assemblies (313) are provided on the turntable (311), the fifth support assemblies (313) are used to support parts with their axes vertical and their threaded ends facing upwards, and the plurality of fifth support assemblies (313) are distributed at intervals along the circumference of the turntable (311); The platform (1) is provided with a plurality of workstations, and the plurality of workstations are spaced apart along the circumference of the turntable (311); when the turntable (311) is rotated until any of the fifth support assemblies (313) is located in a workstation, the plurality of fifth support assemblies (313) are located in a plurality of workstations in a one-to-one correspondence; the inner hole detection mechanism (32), the thread detection mechanism (33) and the inner diameter detection mechanism (34) are respectively arranged in a workstation and are sequentially distributed in the conveying direction of the turntable (311).

8. The product final inspection machine according to claim 7, characterized in that: The inner hole detection mechanism (32) comprises: A first support member (321) connected to the stand (1), located above the turntable (311) and used to limit the upward movement of the parts above the parts; a plug gauge (322) connected to the stand (1), the plug gauge (322) being located below the turntable (311) and having a vertical axis, and the part being located between the first support member (321) and the plug gauge (322) when the part moves with the turntable (311) to the station where the inner hole detection mechanism (32) is located, and the plug gauge (322) is coaxial with the inner hole of the part; The plug gauge (322) is connected to the stand (1) via a first connection structure, the first connection structure comprising a first connection seat (323) and a fourth drive assembly (324), the first connection seat (323) being movable relative to the stand (1) along the axial direction of the plug gauge (322), the fourth drive assembly (324) being used to drive the first connection seat (323) to move, the plug gauge (322) being connected to the first connection seat (323), the plug gauge (322) being movable relative to the first connection seat (323) along its axial direction, and being adapted for when the plug gauge (322) moves upwardly toward the part along the first connection seat (323) to reach the maximum depth when inserted into the inner hole of the unqualified part, the plug gauge (322) is restricted by the part and continues to move along the first connection seat (323); A first detection component comprises a first reference piece (325) and a first laser displacement sensor (326) which are spaced apart along the axial direction of the plug gauge (322); the first reference piece (325) is connected to the stand (1); the first laser displacement sensor (326) is relatively fixed to the plug gauge (322); the first laser displacement sensor (326) is used to detect the distance between the first reference piece (325) and the plug gauge (322) in the axial direction.

9. The product final inspection machine according to claim 7, characterized in that: The thread detection mechanism (33) comprises: a fourth clamping jaw (331), which is connected to the stand (1) and is located above the turntable (311), and the fourth clamping jaw (331) is used to clamp a part to limit the rotation of the part; a thread gauge (332) connected to the stand (1), the thread gauge (332) being located above the turntable (311) with its axis vertical, the part being located below the thread gauge (332) when it moves with the turntable (311) to the station where the thread detection mechanism (33) is located, and the thread of the part is coaxial with the thread gauge (332); The thread gauge (332) is connected to the stand (1) via a second connection structure, the second connection structure comprising a second connection seat (334) and a second mounting seat (335), the second connection seat (334) being connected to the stand (1) and being movable relative to the stand (1) along the axial direction of the thread gauge (332), the second mounting seat (335) being connected to the second connection seat (334) and being movable relative to the second connection seat (334) along the axial direction of the thread gauge (332), the thread gauge (332) being connected to the second mounting seat (335), a fifth driving assembly (336) for driving the second connection seat (334) to move is provided between the second connection seat (334) and the stand (1), and a sixth driving assembly (337) for driving the thread gauge (332) to rotate around its own axis is provided between the second mounting seat (335) and the thread gauge (332); a second laser displacement sensor (333), which is connected to the second connecting seat (334), and the second laser displacement sensor (333) is used to detect the distance between the second laser displacement sensor and the second mounting seat (335) in the axial direction of the plug thread gauge (332); Wherein, it is suitable that when the thread gauge (332) rotates and moves downward with the second mounting seat (335) toward the part along with the second connecting seat (334), when the thread gauge (332) and the unqualified part reach the maximum degree of fit, the thread gauge (332) and the second mounting seat (335) are restricted by the part to continue to move with the second connecting seat (334).

10. The product final inspection machine according to claim 7, characterized in that: The inner diameter detection mechanism (34) comprises: a pneumatic inner diameter measuring head (341) disposed on the platform (1), the pneumatic inner diameter measuring head (341) being located below the turntable (311) and having a vertical axis, the part being located above the pneumatic inner diameter measuring head (341) when the part moves with the turntable (311) to the station where the inner diameter detection mechanism (34) is located, and the inner hole of the part is coaxial with the pneumatic inner diameter measuring head (341); The pneumatic inner diameter measuring head (341) is connected to the platform (1) via a third connecting seat (342); the third connecting seat (342) can move relative to the platform (1) along the axis of the pneumatic inner diameter measuring head (341); and a seventh driving component (343) for driving the third connecting seat (342) to move is provided on the platform (1).

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