Turntable servo spin riveting device and riveting method

Abstract

The invention relates to the technical field of spin riveting, and provides a rotary table servo spin riveting device and a riveting method.The rotary table servo spin riveting device comprises a machine body frame, a spin riveting mechanism and a rotary table mechanism, the spin riveting mechanism and the rotary table mechanism are both arranged on the machine body frame, the spin riveting mechanism is located above the rotary table mechanism, and the rotary table mechanism is located above the rotary table mechanism. The rotary table servo spin riveting device further comprises a detection mechanism, and the detection mechanism comprises a size detection assembly which comprises a laser measuring instrument; the appearance detection assembly comprises a camera and an image recognition module, and the image recognition module is used for recognizing a workpiece surface image collected by the camera; and the performance detection assembly comprises a first detection piece and a second detection piece, the first detection piece is used for detecting the strength of the workpiece, and the second detection piece is used for detecting the sealing performance of the workpiece. According to the rotary table servo spin riveting device, the riveted workpiece is comprehensively detected, the overall quality of the workpiece can be reflected from multiple items, and comprehensive control over the product quality is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary riveting, and in particular to a turntable servo rotary riveting device and a riveting method. Background Art

[0002] The rotary riveting machine is an automated riveting equipment that uses rotary pressure to cause cold pressure deformation of metal or non-metallic materials at the connection point, thereby achieving a firm connection between the workpieces.

[0003] After the workpiece is riveted, a comprehensive quality inspection is required, mainly covering three categories of inspection items: riveting quality, appearance quality, and performance. Traditional rotary riveting devices use manual inspection methods, which is not only inefficient but also difficult to guarantee the accuracy of the inspection results. At the same time, most rotary riveting devices currently on the market only have a single inspection mechanism for riveting quality, mainly relying on technologies such as image recognition to collect workpiece information to determine whether the quality meets the standards. This single inspection mechanism has obvious limitations: it cannot simultaneously meet multiple inspection requirements such as riveting quality and appearance quality, making it difficult to achieve comprehensive quality control.

[0004] For example, the Chinese invention patent with publication number CN119407034A provides an automatic riveting device and riveting method. In the automatic riveting device, the riveting mechanism includes a spinning component and a lifting component. The spinning component includes a spinning drive and a pressure head installed at the output end of the spinning drive. The lifting component includes a lifting drive assembly and a support member installed on the lifting drive assembly. The lifting drive assembly is used to drive the support member to support the first component from one end, and the spinning drive is used to drive the pressure head to rotate and press down the other end of the first component so that the first component is riveted to the second component. A first detection mechanism is used to detect the quality of the first component riveted to the second component in the jig. A waste discharge mechanism is used to grab the first component and the second component that are unqualified in the jig and transport them to a defective product storage box. This automatic riveting device can automatically complete the riveting station between the first component and the second component, ensuring the riveting quality between the first component and the second component. However, at the same time, only the first detection mechanism is provided to detect the connection quality between different components, and it does not have a comprehensive detection function. Summary of the Invention

[0005] The present invention addresses the problem that most turntable riveting devices in the prior art have a single detection mechanism and cannot simultaneously meet multiple detection requirements such as riveting quality and appearance quality. One of the purposes of the present invention is to provide a turntable servo riveting device that can reflect the overall quality of the workpiece from multiple items and optimize the quality control link.

[0006] This application is implemented through the following technical solutions:

[0007] The present invention provides a turntable servo riveting device, comprising a body frame, a riveting mechanism, and a turntable mechanism, wherein the riveting mechanism and the turntable mechanism are both arranged on the body frame, and the riveting mechanism is located above the turntable mechanism. The turntable servo riveting device further comprises a detection mechanism, which comprises:

[0008] The dimension detection component includes a laser measuring instrument, which is mounted on the riveting mechanism and is used to collect workpiece dimensions. The appearance detection component includes a camera and an image recognition module, the camera being electrically connected to the image recognition module and used to recognize workpiece surface images captured by the camera. The camera and the image recognition module are both mounted on the machine frame and located on one side of the turntable mechanism. The performance detection component includes a first detection member and a second detection member, the first detection member being used to detect workpiece strength and the second detection member being used to detect workpiece sealing. Both the first and second detection members are connected to the machine frame.

[0009] Critical dimensions refer to external dimensions of the corresponding workpiece, such as axial width, that may affect the quality of the workpiece connection. Within the machine frame, a turntable mechanism is used to place the workpiece to be processed. A riveting mechanism, located above the turntable, can rotate and move up and down, thereby cold-pressing and deforming the workpiece to achieve riveting. A laser measuring instrument is mounted on the riveting mechanism, facilitating the scanning of the riveted workpiece with a laser beam from above, and then receiving the reflected beam to obtain critical dimension data. A camera captures the surface image of the workpiece, which is then compared and analyzed by an image recognition module to determine the number of surface defects such as scratches and pits. A first inspection component measures the pressure applied to the workpiece, which is a preset pressure value for qualified products. A second inspection component verifies the airtightness within the workpiece, thereby verifying its sealing properties. Combined with these design elements, the turntable servo riveting device not only performs single-quality inspections but also reflects the workpiece's quality level across multiple dimensions, including size, appearance, and performance, achieving comprehensive quality control.

[0010] In a preferred technical solution of the present invention, the size detection component also includes a mounting base located on the riveting mechanism, the mounting base includes two connecting parts, each of the two connecting parts is provided with a hinge port and a plurality of through holes, and the plurality of through holes are all connected to the hinge port; a rotating shaft is fixed to the laser measuring instrument, and the two ends of the rotating shaft are respectively rotatably connected to the hinge ports of the two connecting parts, and both ends of the rotating shaft are provided with through holes, and a locking piece is inserted into the through hole, and the locking piece passes through the through hole.

[0011] The mounting base is used to attach the laser measuring instrument to the riveting mechanism, while the hinged joints on the two connecting parts mate with the rotating shaft to limit the height of the laser measuring instrument. Multiple perforations, through-holes, and locking elements are integrated. The locking elements are inserted through the perforations and into the through-holes, limiting the rotation of the rotating shaft and thereby fixing the height tilt of the laser measuring instrument. This design allows for convenient assembly and disassembly of the laser measuring instrument from the riveting mechanism, and the tilt angle can be adjusted by inserting and removing the locking elements, thus flexibly adjusting the laser scanning area.

[0012] In a preferred technical solution of the present invention, the performance detection component also includes a fixed bracket, which is installed on the body frame, and a transverse guide rail is provided on the fixed bracket. An electric slider is slidably connected to the transverse guide rail, and a telescopic cylinder is fixed on the electric slider, and the first detection part and the second detection part are installed on the telescopic cylinder.

[0013] A transverse guide rail is installed on the fixed bracket, guiding the electric slider to move horizontally toward or away from the turntable mechanism. The electric slider is connected to a telescopic cylinder, which is equipped with a first detection member and a second detection member. Driven by the electric slider, the first and second detection members can move away from each other when the turntable mechanism rotates, and approach and move above the turntable mechanism when it stops. The telescopic cylinder then approaches the riveted workpiece for inspection. This fully ensures the safety of the workpiece when the turntable mechanism rotates, preventing collisions between the workpiece and the structure.

[0014] In a preferred technical solution of the present invention, the first detection component includes a pressure sensor, the second detection component includes an air tightness detector, the air tightness detector is installed on the telescopic cylinder, and the output end of the air tightness detector is connected to the pressure sensor.

[0015] The pressure sensor displays the pressure applied to the workpiece, and the airtightness tester displays changes in the workpiece's internal pressure, helping personnel assess the workpiece's performance. Connecting the pressure sensor to the output of the airtightness tester facilitates simultaneous pressure testing during airtightness testing, saving performance testing time and improving testing efficiency.

[0016] In a preferred technical solution of the present invention, a control system is installed on the body frame, and the laser measuring instrument, the image recognition module and the performance detection component are all electrically connected to the control system.

[0017] The control system connects the laser measuring instrument, the image recognition module and the first and second detection components in the performance detection assembly, and can integrate the corresponding detection data and display them in the same place for easy viewing by staff.

[0018] In a preferred technical solution of the present invention, the rivet mechanism includes a rivet spindle, a coupling, a reducer and a first servo motor. The first servo motor is connected to the input shaft end of the reducer through the coupling. One end of the rivet spindle is connected to the output shaft end of the reducer. The other end of the rivet spindle is detachably connected to a rivet head.

[0019] The first servo motor is connected to a coupling, which is then connected to a reducer. The coupling transmits torque between the two, accommodating angular and axial errors between the first servo motor's drive shaft and the reducer's input shaft, while also providing buffering and vibration reduction. The reducer is connected to the spindle for deceleration and torque amplification, enhancing the firmness of the riveted joint. Furthermore, the spindle's output end features a removable and replaceable rivet head to accommodate different workpieces, enhancing the versatility of the riveting mechanism. This turntable servo riveting device significantly improves workpiece quality through the integration of a riveting mechanism and a detection mechanism.

[0020] In a preferred technical solution of the present invention, the turntable mechanism includes a second servo motor, a transmission mechanism and a turntable provided with a transmission shaft, and the second servo motor drives the transmission shaft through the transmission mechanism.

[0021] The second servo motor drives the transmission mechanism to rotate, and the transmission shaft is driven to rotate synchronously through the rotation of the transmission mechanism, so that the turntable rotates under the control of the second servo motor to achieve forward and reverse rotation.

[0022] A second object of the present invention is to provide a riveting method applied to the above-mentioned turntable servo riveting device, which can be used for comprehensive inspection of finished products, replacing manual inspection to improve inspection efficiency. The riveting method includes the following steps:

[0023] Stacking the first workpiece and the second workpiece on top of each other and loading them onto the turntable mechanism;

[0024] The rotary riveting mechanism rotates and feeds, pressing the first workpiece downward toward the second workpiece to form a riveted workpiece, i.e., a finished product;

[0025] The detection component detects the finished product and displays corresponding detection data.

[0026] The first and second workpieces are the two workpieces that need to be riveted together. Stacking the first and second workpieces allows the riveting mechanism and turntable structure to compress them, forcing them into close contact. The riveting mechanism rotates and compresses the first and second workpieces to form a finished product. The turntable then rotates to move the next pair of first and second workpieces beneath the riveting mechanism, simultaneously removing the finished product. The inspection assembly can then perform subsequent inspections on the finished product.

[0027] In a preferred technical solution of the present invention, the detection component detects the finished product and displays corresponding detection data including: the size detection component scans the finished product through laser to obtain key size data; the appearance detection component collects the surface image of the finished product and analyzes and determines the number of defects on the surface of the finished product; the performance detection component detects the pressure that the finished product can withstand and the internal air pressure.

[0028] Dimension inspection, appearance inspection and performance inspection are carried out in sequence. First, the dimension inspection component undergoes laser scanning, and then the appearance inspection component collects the appearance image. This sequence prevents the high brightness of the laser beam from covering the surface details of the workpiece. Then, the workpiece is inspected by the performance inspection component to complete the entire inspection process.

[0029] In a preferred technical solution of the present invention, the performance detection component detects the tolerable pressure and internal air pressure of the finished product, including: a pressure sensor displays the pressure value, and an airtightness detector fills gas into the finished product and detects the internal air pressure after a predetermined time.

[0030] The first detection part displays the pressure value of the workpiece through the pressure sensor, and the second detection part displays the internal air pressure change of the workpiece through the air tightness tester, which helps the staff to judge the air tightness of the workpiece from the amplitude of the air pressure change, and thus infer the quality of its sealing performance.

[0031] Compared with the prior art, the present invention has at least the following beneficial effects:

[0032] The present invention provides a turntable servo riveting device that establishes a full-process quality control system characterized by continuous loading, piece-by-piece processing, and multi-dimensional inspection. Specifically, the device utilizes a turntable mechanism for continuous, automated workpiece loading and a riveting mechanism for precise riveting. Its core design lies in a testing mechanism capable of multi-dimensional inspection. This testing mechanism employs a modular design, comprising a dimensional inspection component, an appearance inspection component, and a performance inspection component. The dimensional inspection component uses a laser measuring instrument to rapidly acquire key workpiece dimensions; the appearance inspection component, equipped with a camera and image recognition module, captures and accurately identifies surface defects such as blemishes and scratches; and the performance inspection component uses a first inspection component and a second inspection component to quantitatively assess the workpiece's pressure-bearing capacity and sealing performance. This multi-stage inspection process ensures full quality control of riveted workpieces. This not only comprehensively reflects the overall quality level of the workpieces but also achieves an intelligent upgrade in the quality control process. Its advantages include providing intuitive criteria for determining conformity and efficiently selecting high-quality workpieces that meet all technical specifications, effectively improving product consistency and production efficiency.

[0033] The present invention also provides a riveting method that utilizes the aforementioned turntable servo riveting device to construct a fully automated finished product quality inspection system using dimensional, appearance, and performance inspection components. This method fundamentally eliminates the subjective errors introduced by traditional manual inspection through three-dimensional inspection, significantly improving the accuracy and reliability of inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 2. It is a three-dimensional schematic diagram of a turntable servo riveting device in an embodiment of the present application;

[0035] Figure 2 is a cross-sectional view along the height direction of the rotary riveting mechanism in an embodiment of the present application;

[0036] Figure 3 This is a schematic structural diagram of the turntable mechanism in an embodiment of the present application;

[0037] Figure 4 This is a schematic structural diagram of the mounting base in an embodiment of the present application; Figure 5 It is a structural diagram of the performance detection component in an embodiment of the present application.

[0038] Reference numerals:

[0039] 1. Body frame;

[0040] 2. Riveting mechanism; 21. Riveting spindle; 22. Coupling; 23. Reducer; 24. First servo motor; 25. Riveting head;

[0041] 3. Turntable mechanism; 31. Second servo motor; 32. Transmission mechanism; 33. Turntable;

[0042] 4. Detection mechanism; 41. Laser measuring instrument; 42. Camera; 43. Image recognition module; 44. First detection member; 45. Second detection member; 46. Mounting base; 461. Connecting portion; 462. Insertion opening; 463. Locking member; 47. Fixed bracket; 48. Horizontal guide rail; 49. Electric slide; 410. Telescopic cylinder;

[0043] 5. Control system. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0045] In the description of the present invention, the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0046] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The singular forms "a," "an," and "the" used in this invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0047] Example 1

[0048] See also Figure 1 、 3 As shown, the present invention provides a turntable servo riveting device, comprising a body frame 1, a riveting mechanism 2 and a turntable mechanism 3. The riveting mechanism 2 and the turntable mechanism 3 are both arranged on the body frame 1, and the riveting mechanism 2 is located above the turntable mechanism 3. The turntable servo riveting device also includes a detection mechanism 4, which includes:

[0049] The size detection component includes a laser measuring instrument 41, which is arranged on the riveting mechanism 2 and is used to collect the size of the workpiece; the appearance detection component includes a camera 42 and an image recognition module 43, the camera 42 is electrically connected to the image recognition module 43, and the image recognition module 43 is used to recognize the surface image of the workpiece collected by the camera 42. The camera 42 and the image recognition module 43 are both arranged on the body frame 1 and located on one side of the turntable mechanism 3; the performance detection component includes a first detection member 44 and a second detection member 45. The first detection member 44 is used to detect the strength of the workpiece, and the second detection member 45 is used to detect the sealing of the workpiece. The first detection member 44 and the second detection member 45 are both connected to the body frame 1.

[0050] See also Figure 5 As shown, the performance detection component also includes a fixed bracket 47, which is installed on the body frame 1. The fixed bracket 47 is provided with a transverse guide rail 48, and an electric slider 49 is slidably connected to the transverse guide rail 48. A telescopic cylinder 410 is fixed on the electric slider 49, and a first detection component 44 and a second detection component 45 are installed on the telescopic cylinder 410.

[0051] See also Figure 3 As shown, the first detection component 44 includes a pressure sensor, the second detection component 45 includes an airtightness detector, the airtightness detector is installed on the telescopic cylinder 410, and the output end of the airtightness detector is connected to the pressure sensor.

[0052] In addition, a control system 5 is installed on the body frame 1 , and the laser measuring instrument 41 , the image recognition module 43 and the performance detection component are all electrically connected to the control system 5 .

[0053] Specifically, the critical dimensions refer to the external contour dimensions, such as the axial width, that may affect the connection quality of the workpieces in the corresponding workpiece products. The body frame 1 is a machine platform, and a working area is formed in the body frame 1. The turntable mechanism 3 is arranged at the top of the working area to place the workpiece to be processed; the riveting mechanism 2 is arranged at the top of the working area and above the turntable mechanism 3. A sliding assembly is also provided between the riveting mechanism 2 and the body frame 1. The sliding assembly includes two parallel longitudinal guide rails and two sliders. The two longitudinal guide rails are distributed on the side walls of the body frame 1. The riveting mechanism 2 is connected to the body frame 1 by connecting the two sliders. A ball screw is provided in parallel between the two longitudinal guide rails. The riveting mechanism 2 is connected to the nut of the ball screw. The top of the ball screw is connected to a motor. The motor drives the screw of the ball screw to rotate, so that the riveting mechanism 2 is lifted and lowered, thereby cold-pressing and deforming the workpiece to achieve riveting. The riveting mechanism 2 includes a dust cover. The laser measuring instrument 41 can be mounted on the side wall of the dust cover of the riveting mechanism 2 or inside the dust cover. Its output end is aligned with the turntable mechanism 3 below the riveting mechanism 2, facilitating the use of a laser beam to scan the riveted workpiece from above, and then receiving the reflected beam to obtain key dimensional data. The camera 42 uses a high-precision camera 42. The image recognition module 43 is equipped with a detection and analysis program and an image library. The image library contains a variety of surface defect images of various workpieces, such as cracks, scratches, pits, and other characteristic images. The images can be repeatedly deleted and written for updating. The detection and analysis program can read and call the characteristic images in the image library and compare them with the images captured by the camera 42 to identify the defect characteristics of the workpiece surface. The camera 42 and the image recognition module 43 are installed on the side wall of the body frame 1, higher than the top surface of the turntable mechanism 3, which is conducive to collecting the overall image of the workpiece. The high-precision camera 42 collects multiple surface images of the workpiece when the turntable mechanism 3 drives the workpiece to rotate. The image recognition module 43 completes comparison and analysis of these surface images to obtain the number of defects such as scratches and shallow pits on the surface of the workpiece. The pressure sensor detects the pressure value that the workpiece is subjected to. This pressure value is the preset pressure value that qualified products can withstand. The airtightness tester detects the sealing by inflating the inside of the test workpiece and measuring the internal air pressure. Under the combined effect of the above designs, the turntable servo riveting device can not only realize single quality inspection, but also reflect the quality level of the workpiece in multiple dimensions such as size, appearance and performance, thereby realizing comprehensive quality control.

[0054] Furthermore, the performance detection assembly is installed on the left side of the work area via a fixed bracket 47. The fixed bracket 47 is an inverted L-shaped bracket comprising a horizontal portion and a vertical portion. A horizontal transverse guide rail 48 is bolted to the horizontal portion. The transverse guide rail 48 guides the electric slider 49 to move horizontally toward or away from the turntable mechanism 3. Limit blocks are connected to both sides of the transverse guide rail 48 to prevent the electric slider 49 from sliding and to position the workpiece using the limit block on the right end. The electric slider 49 is connected to a telescopic cylinder 410, which is equipped with a pressure sensor and an air tightness tester. Driven by the electric slider 49, the pressure sensor and the air tightness tester can move away from the turntable mechanism 3 when it rotates, and approach and move to the top of the turntable mechanism 3 when it stops, and approach the riveted workpiece through the telescopic cylinder 410 for testing. In this way, the safety of the workpiece is fully guaranteed when the turntable mechanism 3 rotates, avoiding collisions between the workpiece and the structure.

[0055] Furthermore, the output end of the air tightness tester is a metal pipe, and the pressure sensor is connected to the metal pipe. When the telescopic cylinder 410 drives the air tightness tester downward and the metal pipe abuts the workpiece for air tightness testing, the output process of the telescopic cylinder 410 can be increased to increase the downward pressure, which is conducive to the pressure sensor to complete the pressure test synchronously, saving performance testing time and improving testing efficiency.

[0056] Furthermore, a control system 5 is mounted on top of the machine frame 1 and connected to a display panel. The control system 5 is connected to a laser measuring instrument 41, an image recognition module 43, a pressure sensor, and an airtightness tester, thereby integrating and displaying corresponding test data on the display panel. This facilitates viewing by personnel and allows them to adjust the timing of each test on the display panel.

[0057] Example 2

[0058] See also Figure 4 As shown, this embodiment is improved on the basis of embodiment 1, and provides a turntable servo riveting device. The size detection component also includes a mounting base 46 located on the riveting mechanism 2, and the mounting base 46 includes two connecting parts 461. The two connecting parts 461 are each provided with a hinge interface and a plurality of through holes, and the plurality of through holes are all connected to the hinge interface; a rotating shaft is fixed to the laser measuring instrument 41, and both ends of the rotating shaft are rotatably connected to the hinge interfaces of the two connecting parts 461, and both ends of the rotating shaft are provided with through holes, and a locking member 463 is inserted into the through hole, and the locking member 463 passes through the through hole.

[0059] See also Figure 2As shown, the riveting mechanism 2 includes a riveting spindle 21, a coupling 22, a reducer 23 and a first servo motor 24. The first servo motor 24 is connected to the input shaft end of the reducer 23 through the coupling 22. One end of the riveting spindle 21 is connected to the output shaft end of the reducer 23. The other end of the riveting spindle 21 is detachably connected to a riveting head 25.

[0060] See also Figure 3 As shown, the turntable mechanism 3 includes a second servo motor 31 , a transmission mechanism 32 and a turntable 33 provided with a transmission shaft. The second servo motor 31 drives the transmission shaft through the transmission mechanism 32 .

[0061] Specifically, the mounting base 46 is used to mount the laser measuring instrument 41 to the riveting mechanism 2, while the hinged interfaces on the two connecting parts 461 mate with the rotating shaft and are used to limit the height of the laser measuring instrument 41. Multiple perforations are combined with the through-hole and locking member 463. The locking member 463 can be a screw. The locking member 463 is inserted through the perforation hole and then into the through-hole, where it is locked in the perforation hole. The other end of the locking member 463 is assembled and connected with a nut, limiting the rotation of the rotating shaft and thereby fixing the tilt angle of the laser measuring instrument 41 in the height direction. Through this design, the laser measuring instrument 41 can be easily assembled and disassembled from the riveting mechanism 2, and the tilt angle can be adjusted by inserting and removing the locking member 463, thereby flexibly adjusting the laser scanning area.

[0062] The output end of the first servo motor 24 is connected to the coupling 22, which in turn is connected to the input shaft of the reducer 23. The coupling 22 transmits torque between the two, accommodating angular and axial errors between the drive shaft of the first servo motor 24 and the input shaft of the reducer 23, while also providing vibration damping. The output shaft of the reducer 23 is connected to the spindle 21 for deceleration and torque amplification, enhancing the robustness of the riveted joint. Furthermore, the spindle 25 at the output end of the spindle 21 is removable and replaceable to accommodate different workpieces, enhancing the versatility of the spindle 2. The transmission mechanism 32 utilizes a gear drive. A first bevel gear is mounted on the drive shaft of the turntable 33. The second servo motor 31 is mounted at the bottom of the workspace and has a second bevel gear mounted on its drive shaft. The two bevel gears mesh to transmit the rotation of the turntable 33 under the control of the second servo motor 31, achieving forward and reverse rotation. The second servo motor 31 is also electrically connected to the control system 5, receiving commands from the control system 5 to precisely control the speed, direction, and start / stop of the turntable 33. The workpiece clamp is mounted on the turntable 33 to clamp the workpiece. The turntable servo riveting device greatly improves the quality of the workpiece by combining the riveting mechanism 2 with the detection mechanism 4.

[0063] Example 3

[0064] This embodiment provides a riveting method, which uses the above-mentioned turntable servo riveting device to rivet a stainless steel workpiece and a titanium alloy workpiece, including the following steps:

[0065] S100: The stainless steel workpiece and the titanium alloy workpiece are stacked up and loaded onto the turntable mechanism 3;

[0066] S200, the rotary riveting mechanism 2 rotates and feeds, pressing the stainless steel workpiece toward the titanium alloy workpiece to form a riveted workpiece, i.e., a finished product;

[0067] S300: The inspection component inspects the finished product and displays the corresponding inspection data.

[0068] Step S300 further includes:

[0069] S310, the dimension detection component scans the finished product by laser to obtain key dimension data;

[0070] S320, the appearance inspection component collects the surface image of the finished product and analyzes and determines the number of defects on the surface of the finished product;

[0071] S330, the performance testing component tests the pressure that the finished product can withstand and the internal air pressure.

[0072] Furthermore, step S330 includes:

[0073] S331. The pressure sensor displays the pressure value, and the air tightness tester fills the finished product with gas and detects the internal air pressure after a predetermined time.

[0074] Specifically, the stainless steel and titanium alloy workpieces undergo surface treatment before loading, and the stainless steel workpiece's rivet studs and the titanium alloy workpiece's bottom end grooves are decontaminated. The stainless steel and titanium alloy workpieces are then clamped and stacked using a workpiece fixture, with the stainless steel workpiece positioned below the titanium alloy. Next, the corresponding rivet head 25 is installed according to the workpiece model. The machine is started, and the control system 5, according to a preset program, causes the second servo motor 31 to drive the turntable 33. The stainless steel and titanium alloy workpieces are moved to the processing area. After the turntable 33 is precisely positioned directly below the rivet head 25, the rivet head 25 rotates at a low speed, pressing down until it contacts the upper end surface of the titanium alloy workpiece, and then moves axially downward at a speed of 3 mm / min. At this point, the stainless steel workpiece's rivet studs continuously rub against the titanium alloy workpiece's bottom end groove, deforming the rivet stud material and filling the titanium alloy workpiece's bottom end groove, forming a ball-shaped structure. When the bottom end surface of the rivet head 25 contacts the workpiece fixture and rises, the two workpieces are riveted together. The turntable then rotates to move the next pair of stainless steel and titanium alloy workpieces to the bottom of the riveting mechanism 2, simultaneously removing the finished product. Finally, the inspection component performs subsequent inspections on the finished product, with dimensional inspection, appearance inspection, and performance inspection performed sequentially. The dimensional inspection component first performs laser scanning, followed by appearance image capture. This sequential order prevents the high brightness of the laser beam from obscuring the surface details of the workpiece. The workpiece is then inspected by the performance inspection component, completing the entire inspection process. After inspection, the staff removes the finished product and reloads it, repeating the above steps.

[0075] Example 4

[0076] This embodiment uses the above-mentioned turntable servo riveting device to rivet a first stainless steel workpiece and a second stainless steel workpiece, including:

[0077] Before loading, the first and second stainless steel workpieces undergo surface treatment, and the rivet studs of the first stainless steel workpiece and the grooves on the bottom end face of the second stainless steel workpiece are decontaminated. The first and second stainless steel workpieces are then clamped and stacked using a workpiece fixture, with the first stainless steel workpiece positioned below the second. Next, the corresponding rivet head 25 is installed according to the workpiece model. The machine is started, and the control system 5, according to a preset program, causes the second servo motor 31 to drive the turntable 33. The first and second stainless steel workpieces are moved to the processing area. After the turntable 33 stops, the rivet head 25 rotates at a low speed, pressing down until it contacts the upper end face of the second stainless steel workpiece, and then moves axially downward at a speed of 4 mm / min. At this time, the rivet studs of the first stainless steel workpiece continuously rub against the bottom end face of the second stainless steel workpiece, causing the rivet stud material to deform and fill the grooves on the bottom end face of the second stainless steel workpiece, forming a ball-shaped structure. When the bottom end face of the rivet head 25 contacts the workpiece fixture and rises, the two workpieces are riveted together. The turntable then rotates to move the next pair of first and second stainless steel workpieces to the bottom of riveting mechanism 2, simultaneously removing the finished product. Finally, the inspection component performs subsequent inspections on the finished product, with dimensional inspection, appearance inspection, and performance inspection performed sequentially. The dimensional inspection component first performs laser scanning, followed by appearance image capture. This sequential order prevents the high brightness of the laser beam from obscuring surface details of the workpiece. The workpiece is then inspected by the performance inspection component, completing the entire inspection process. After inspection, the worker removes the finished product and reloads it, repeating the above process.

[0078] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A turntable servo riveting device, comprising a machine frame (1), a riveting mechanism (2) and a turntable mechanism (3), wherein the riveting mechanism (2) and the turntable mechanism (3) are both arranged on the machine frame (1), and the riveting mechanism (2) is located above the turntable mechanism (3), characterized in that: The turntable servo riveting device further comprises a detection mechanism (4), wherein the detection mechanism (4) comprises: A size detection component includes a laser measuring instrument (41), wherein the laser measuring instrument (41) is arranged on the riveting mechanism (2) and is used to collect the size of the workpiece; An appearance detection component comprises a camera (42) and an image recognition module (43), wherein the camera (42) is electrically connected to the image recognition module (43), and the image recognition module (43) is used to recognize the surface image of a workpiece collected by the camera (42). The camera (42) and the image recognition module (43) are both arranged on the machine body frame (1) and located on one side of the turntable mechanism (3); A performance detection component comprises a first detection member (44) and a second detection member (45), wherein the first detection member (44) is used to detect the strength of a workpiece, and the second detection member (45) is used to detect the sealing performance of the workpiece, and both the first detection member (44) and the second detection member (45) are connected to the machine body frame (1).

2. The turntable servo riveting device according to claim 1, characterized in that: The size detection component also includes a mounting base (46) located on the riveting mechanism (2), the mounting base (46) including two connecting parts (461), each of the two connecting parts (461) being provided with a hinge interface and a plurality of through holes, and the plurality of through holes being connected to the hinge interface; a rotating shaft is fixed to the laser measuring instrument (41), the two ends of the rotating shaft being rotatably connected to the hinge interfaces of the two connecting parts (461), and the two ends of the rotating shaft are provided with through holes, a locking member (463) being inserted into the through hole, and the locking member (463) passing through the through hole.

3. The turntable servo riveting device according to claim 1, characterized in that: The performance detection assembly further comprises a fixed bracket (47), the fixed bracket (47) being mounted on the machine body frame (1), the fixed bracket (47) being provided with a transverse guide rail (48), the transverse guide rail (48) being slidably connected to an electric slider (49), a telescopic cylinder (410) being fixed on the electric slider (49), and the first detection member (44) and the second detection member (45) being mounted on the telescopic cylinder (410).

4. The turntable servo riveting device according to claim 3, characterized in that: The first detection member (44) includes a pressure sensor, and the second detection member (45) includes an airtightness detector. The airtightness detector is installed on the telescopic cylinder (410), and the output end of the airtightness detector is connected to the pressure sensor.

5. The turntable servo riveting device according to claim 1, characterized in that: A control system (5) is installed on the machine frame (1), and the laser measuring instrument (41), the image recognition module (43) and the performance detection component are all electrically connected to the control system (5).

6. The turntable servo riveting device according to claim 1, characterized in that: The spin riveting mechanism (2) comprises a spin riveting spindle (21), a coupling (22), a reducer (23) and a first servo motor (24); the first servo motor (24) is connected to the input shaft end of the reducer (23) via the coupling (22); one end of the spin riveting spindle (21) is connected to the output shaft end of the reducer (23); and the other end of the spin riveting spindle (21) is detachably connected to a spin riveting head (25).

7. The turntable servo riveting device according to claim 1, characterized in that: The turntable mechanism (3) comprises a second servo motor (31), a transmission mechanism (32), and a turntable (33) provided with a transmission shaft, wherein the second servo motor (31) drives the transmission shaft through the transmission mechanism (32).

8. A riveting method applied to the turntable servo riveting device according to any one of claims 1 to 7, characterized in that: include: stacking the first workpiece and the second workpiece on top of each other and loading them onto a turntable mechanism (3); The rotary riveting mechanism (2) rotates and feeds to press the first workpiece downward toward the second workpiece to form a riveted workpiece, i.e., a finished product; The detection component detects the finished product and displays corresponding detection data.

9. The riveting method according to claim 8, characterized in that: The detection component detects the finished product and displays corresponding detection data, including: the size detection component scans the finished product through laser to obtain key size data; the appearance detection component collects the surface image of the finished product and analyzes and determines the number of defects on the surface of the finished product; the performance detection component detects the pressure that the finished product can withstand and the internal air pressure.

10. The riveting method according to claim 9, characterized in that: The performance detection component detects the tolerable pressure and internal air pressure of the finished product, including: a pressure sensor displays the pressure value, and an airtightness detector fills the finished product with gas and detects the internal air pressure after a predetermined time.

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