A dual Y-axis servo riveting device

Abstract

This utility model provides a dual Y-axis servo riveting device, belonging to the technical field of riveting equipment. The dual Y-axis servo riveting device includes a base, a dual Y-axis motion mechanism, an X-axis motion mechanism, a Z-axis pressing riveting mechanism, and a control system. The dual Y-axis motion mechanism is mounted on the base and includes two sets of Y-axis motion units arranged parallel to each other along the Y-axis direction for carrying materials. The X-axis motion mechanism includes a gantry, an X-axis moving slide, and an X-axis servo drive assembly. The gantry is mounted on the base along the X-axis direction and spans across the dual Y-axis motion mechanism. The Z-axis pressing riveting mechanism is mounted on the X-axis moving slide and includes a riveting head assembly and a Z-axis servo drive assembly. The Z-axis servo drive assembly includes a Z-axis servo motor and a reducer. The riveting head assembly includes a riveting head and a rotary motor. This overcomes the problems of low pressure control accuracy, unstable quality, and low efficiency caused by traditional riveting equipment using pneumatic or hydraulic drives.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a dual Y-axis servo riveting equipment. Background Technology

[0002] Spool riveting is a common cold joining process. It involves applying a combination of rotation and pressure to the rivet using a riveting head, causing plastic deformation of the rivet shank to form a rivet head, thus connecting two or more parts together. Due to its advantages such as strong connections, simple structure, and low cost, it is widely used in the manufacturing of automotive parts, electronic products, hardware tools, and home appliances.

[0003] Traditional riveting equipment mostly uses pneumatic or hydraulic drive. Pneumatic riveting machines have a simple structure, but their pressure control precision is not high, and they are greatly affected by fluctuations in the air supply, making it difficult to guarantee consistent riveting quality. Hydraulic riveting machines can provide greater riveting force, but they suffer from problems such as hydraulic oil leakage, environmental pollution, high energy consumption, and high noise.

[0004] Therefore, existing riveting equipment needs to be improved to overcome the shortcomings of the existing technology. Utility Model Content

[0005] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a dual Y-axis servo riveting device. This dual Y-axis servo riveting device sets up a gantry frame and installs a Z-axis downward riveting mechanism that can move along the X-axis on the gantry frame. Two independent Y-axis motion mechanisms are set in parallel below the gantry frame to carry and move the workpiece along the Y-axis. The servo drive components of each axis are coordinated and controlled by a unified control system. This overcomes the problems of low pressure control accuracy, unstable riveting quality, high energy consumption, easy pollution, and low single-station operation efficiency caused by the use of pneumatic or hydraulic drives in existing riveting equipment.

[0006] A dual Y-axis servo riveting device, comprising:

[0007] Base;

[0008] A dual Y-axis motion mechanism is set on the base and includes two sets of Y-axis motion units arranged parallel to each other along the Y-axis direction. Each set of Y-axis motion units includes a Y-axis moving slide, a bearing component set on the Y-axis moving slide, and a Y-axis servo drive component that drives the Y-axis moving slide to move along the Y direction. The bearing component is used to bear materials.

[0009] The X-axis motion mechanism includes a gantry, an X-axis moving slide, and an X-axis servo drive assembly for driving the X-axis moving slide to move along the X-axis direction. The gantry is mounted on the base along the X-axis direction and spans across the dual Y-axis motion mechanism. The X-axis servo drive assembly is mounted on the gantry along the X-axis direction.

[0010] The Z-axis downward pressing riveting mechanism is located on the X-axis moving slide. The Z-axis downward pressing riveting mechanism includes a riveting head assembly and a Z-axis servo drive assembly. The Z-axis servo drive assembly includes a Z-axis servo motor and a reducer connected to the output end of the Z-axis servo motor. The reducer drives the riveting head assembly to move along the Z-axis direction. The riveting head assembly includes a riveting action head and a rotary motor for driving the riveting action head to rotate.

[0011] The control system is electrically connected to and coordinates the control of the Y-axis servo drive assembly, the X-axis servo drive assembly, the Z-axis servo motor, and the rotary motor.

[0012] Furthermore, the Z-axis pressing and riveting mechanism also includes a Z-axis moving slide;

[0013] The Z-axis servo drive assembly also includes a Z-axis ball screw and a Z-axis linear guide.

[0014] The output end of the reducer is connected to the Z-axis ball screw, and the riveting head assembly is connected to the Z-axis ball screw via a Z-axis moving slide and moves along the Z-axis direction under the guidance of the Z-axis linear guide.

[0015] The Z-axis servo drive assembly, through a combination of servo motors, reducers, ball screws, and linear guides, achieves ultra-high precision control over riveting depth and the pressing process. The Z-axis servo motor, as the power source, can have its output angle and speed precisely controlled by electrical signals. The reducer increases torque while lowering the speed, providing stable and sufficiently high pressure for riveting. The Z-axis ball screw efficiently and with low friction converts the precise rotary motion of the servo motor into linear displacement, achieving precise control throughout the entire process from the drive source to the execution end. This results in micron-level displacement control accuracy, ensuring a high degree of consistency in riveting depth and guaranteeing stable and reliable riveting quality.

[0016] Furthermore, the X-axis servo drive assembly also includes an X-axis servo motor, an X-axis ball screw, and an X-axis linear guide. The X-axis moving slide is connected to the X-axis ball screw via a ball screw nut. The X-axis servo motor drives the X-axis ball screw, and the X-axis moving slide is connected to the X-axis linear guide.

[0017] The X-axis servo drive assembly employs a combination of servo motors, ball screws, and linear guides to achieve rapid and precise positioning of the riveting head in the X-axis direction. Through control of the X-axis servo drive assembly, the Z-axis pressing riveting mechanism moves quickly, smoothly, and without cumulative error to any preset X-coordinate point. This not only forms the basis for efficient switching between dual Y-axis workstations but also enables the equipment to easily handle riveting tasks with multiple points, arrays, or non-linear distributions on complex workpieces, greatly improving the automation level and processing flexibility of the equipment.

[0018] Furthermore, the X-axis linear guide is provided in three sets, of which two sets of the X-axis linear guide are arranged parallel to the XZ plane, and one set of the X-axis linear guide is arranged parallel to the XY plane;

[0019] Each X-axis linear guide includes a linear track and two linear sliders that slide in conjunction with the linear track. The X-axis moving slide is connected to the linear sliders of each X-axis linear guide.

[0020] By employing a three-group distributed layout of the X-axis linear guides, the rigidity and stability of the X-axis motion mechanism are significantly enhanced, ensuring the stability and high precision of the Z-axis riveting head during high-speed movement and heavy pressure. When the X-axis sliding table supports the Z-axis mechanism's movement, it must withstand not only gravity in the Z-axis direction but also inertial forces during acceleration and deceleration, and, during riveting, the enormous reaction force from the Z-axis and the torque generated by riveting. Using only two traditional parallel guides would have limited resistance to torsion and overturning. Two groups parallel to the XZ plane primarily resist lateral forces in the Y-axis direction and torque around the X-axis, while one group parallel to the XY plane primarily resists overturning moments in the Z-axis direction. Vibration and swaying are effectively suppressed when the slide moves at high speed; when riveting under Z-axis pressure, the slide does not tilt or shift due to force. This significantly improves the rigidity of the X-axis and the entire motion system, providing a crucial structural guarantee for achieving high-precision, high-quality riveting.

[0021] Furthermore, along the Z-axis direction, the X-axis linear guide rail, which is parallel to the XY plane, is positioned between two sets of X-axis linear guide rails that are parallel to the XZ plane.

[0022] The X-axis moving slide has a cross-section in the YZ plane that is shaped like a "├".

[0023] By employing a "├"-shaped slide cross-section design and optimized guide rail relative positions, the X-axis motion mechanism achieves a more compact structure while lowering the center of gravity of the moving components, further enhancing motion stability. Placing the X-axis linear guide rails parallel to the XY plane between two sets of X-axis linear guide rails parallel to the XZ plane allows for a lower mounting position of the Z-axis mechanism, effectively reducing the center of gravity of the entire XZ motion assembly. A lower center of gravity helps reduce inertial torque generated during high-speed starts and stops, resulting in smoother motion and less vibration. Without sacrificing rigidity, the dynamic performance and positioning accuracy of the equipment are improved.

[0024] Furthermore, the supporting component includes a base plate and a mounting plate. A pressure sensor is also provided between the base plate and the mounting plate. The pressure sensor is located at the center of the base plate. Positioning pins are also provided around the top surface of the base plate. The mounting plate is movably connected to the base plate through the positioning pins.

[0025] The pressure sensor is electrically connected to the control system. The pressure sensor is used to detect the pressure acting on the mounting plate in real time and transmit the corresponding pressure signal to the control system.

[0026] By introducing a pressure sensor into the load-bearing component and electrically connecting it to the control system, the reliability and consistency of riveting quality are significantly improved. Traditional methods primarily control the riveting depth displacement. However, due to factors such as workpiece height tolerances and material hardness fluctuations, even with perfectly consistent riveting depths, the final riveting force may differ, leading to unstable riveting quality. By placing a pressure sensor between the mounting plate and the base plate used to support the material, guided by a locating pin, the actual pressure applied to the workpiece during riveting can be accurately and in real-time measured. The control system compares the pressure signal with a preset standard pressure value and adjusts the downward stroke and torque of the Z-axis servo motor in real-time, ensuring that the final applied riveting force remains within the optimal process window regardless of changes in workpiece tolerances.

[0027] Furthermore, the Y-axis servo drive assembly includes a Y-axis servo motor, a Y-axis ball screw, and a Y-axis linear guide. The Y-axis moving slide is connected to the Y-axis ball screw via a ball screw nut. The base plate is connected to the Y-axis moving slide. The Y-axis servo motor drives the Y-axis ball screw. The Y-axis moving slide is slidably connected to the Y-axis linear guide.

[0028] The combination of servo motors, ball screws, and linear guides ensures that the dual-station worktable can achieve fast, stable, and highly repeatable precise positioning.

[0029] Furthermore, the two sides of the Y-axis moving slide protrude upwards, and the cross-section on the XZ plane is U-shaped. The protrusions on both sides of the Y-axis moving slide are connected to the bottom surface of the base plate. A gap is formed between the middle of the Y-axis moving slide and the base plate. A baffle is provided in the gap. The baffle is clearance-fitted with the Y-axis moving slide and the base plate. The baffle is used to cover the Y-axis servo drive assembly.

[0030] Riveting, especially riveting of metal parts, inevitably generates metal shavings, dust, and other contaminants. If these contaminants fall into the raceways of high-precision transmission components such as Y-axis ball screws and Y-axis linear guides, they can cause severe wear, increase motion resistance, reduce transmission accuracy, and even lead to jamming and damage. By designing the "U"-shaped cross-section of the Y-axis moving slide and adding baffles, effective protection is provided for the Y-axis precision transmission components, significantly improving the durability of the equipment and its reliability under harsh working conditions, while reducing maintenance costs.

[0031] Furthermore, the top surface of the base plate is provided with a first groove corresponding to the outline of the pressure sensor, and the pressure sensor is partially embedded in the first groove and fixedly connected to the base plate.

[0032] The bottom surface of the base plate is provided with a second groove corresponding to the protrusions on both sides of the Y-axis moving slide. The protrusions on both sides of the Y-axis moving slide are embedded in the second groove and fixedly connected to the base plate.

[0033] The performance of precision equipment depends not only on the accuracy of individual parts, but also on the assembly accuracy and connection rigidity between parts. An embedded connection method is employed, using a first groove in the base plate to mount the pressure sensor and a second groove to mate with the protrusion of the Y-axis sliding stage. Compared to simple screw-based flat fastening, the embedded connection utilizes the sidewalls of the grooves to provide additional positioning reference and shear resistance. For the pressure sensor, embedded mounting ensures correct orientation, guaranteeing vertical and unbiased pressure transmission, thereby improving the accuracy of the sensing signal. For the connection between the Y-axis sliding stage and the base plate, the embedded connection increases the contact area and structural rigidity, making the entire workpiece-bearing platform more stable.

[0034] The beneficial effects of this utility model are as follows:

[0035] This utility model provides a dual Y-axis servo riveting device. By setting up X-axis, Y-axis, and Z-axis servo drive components, this device achieves full servo control of the XYZ three-axis motion. The servo motor system can perform high-precision closed-loop control of position, speed, and torque according to the instructions of the control system, exhibiting fast response speed and high repeatability. Therefore, compared to the coarse control of pneumatic systems and the large and complex hydraulic systems, the full servo drive fundamentally ensures the precise spatial positioning of the riveting joint, precise control of the pressing depth, and stable force output during the riveting process. This solves the problem of unstable riveting quality caused by outdated drive methods, significantly improving product qualification rate and consistency. Simultaneously, the fully electric drive method completely avoids the environmental pollution caused by hydraulic oil leakage and the high noise and high energy consumption problems of pneumatic systems. Furthermore, a dual Y-axis motion mechanism is provided, comprising two parallel Y-axis motion units capable of independently carrying materials, dividing the working area of ​​the device into two independent workstations. Through coordinated scheduling by the control system, when the X and Z axis mechanisms are performing fully automated riveting operations at one of the Y-axis stations, the other Y-axis station is fully open, allowing operators or automated equipment to simultaneously perform the operation of "removing the processed workpiece and loading the workpiece to be processed." Once riveting on one side is complete, the X-axis mechanism can quickly move to another prepared station to begin operation immediately, while the original station becomes a loading / unloading station. This parallel working mode of "one station processing, another preparing materials" allows the riveting processing time to overlap with the auxiliary loading / unloading time, greatly reducing equipment downtime caused by material flow. This significantly increases the effective working time of the riveting spindle, thereby significantly improving the overall production efficiency and automation level of the equipment and effectively overcoming the core defect of low efficiency in existing technologies. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the dual Y-axis servo riveting device provided in this application;

[0037] Figure 2 This is a bottom side schematic diagram of the dual Y-axis motion mechanism provided in this application;

[0038] Figure 3 This is a side view of the dual Y-axis motion mechanism provided in this application;

[0039] Figure 4 This is a schematic diagram of the bottom side of the load-bearing component provided in this application;

[0040] Figure 5 This is a schematic diagram of the top side of the load-bearing component provided in this application after the mounting plate has been removed;

[0041] Figure 6This is a top side view of the load-bearing component provided in this application after removing the mounting plate and pressure sensor;

[0042] Figure 7 This is a schematic diagram of the X-axis motion mechanism provided in this application;

[0043] Figure 8 This is a schematic diagram of the X-axis motion mechanism and Z-axis downward riveting mechanism provided in this application after the gantry frame has been removed;

[0044] Figure 9 This is a side view of the Z-axis pressing riveting mechanism and the X-axis moving slide provided in this application;

[0045] Figure 10 This is a schematic diagram of the Z-axis downward pressing riveting mechanism provided in this application.

[0046] Figure label:

[0047] 100. Base;

[0048] 200. Dual Y-axis motion mechanism; 210. Y-axis moving slide; 220. Load-bearing assembly; 221. Base plate; 222. Mounting plate; 223. Pressure sensor; 224. Positioning pin; 225. First groove; 226. Second groove; 230. Y-axis servo drive assembly; 231. Y-axis servo motor; 232. Y-axis ball screw; 233. Y-axis linear guide; 240. Baffle;

[0049] 300. X-axis motion mechanism; 310. Gantry frame; 320. X-axis moving slide; 331. X-axis servo motor; 332. X-axis ball screw; 333. X-axis linear guide;

[0050] 400. Z-axis downward riveting mechanism; 410. Riveting head assembly; 411. Riveting action head; 412. Rotary motor; 420. Z-axis servo drive assembly; 421. Z-axis servo motor; 422. Reducer; 423. Z-axis ball screw; 424. Z-axis linear guide; 430. Z-axis moving slide. Detailed Implementation

[0051] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0052] like Figures 1 to 10As shown, this embodiment provides a dual Y-axis servo riveting device, which includes a base 100. The base 100 is presented in the form of a stable cabinet structure, with four movable casters at the bottom of the cabinet for easy deployment and movement of the device. The front of the cabinet is equipped with an operation panel and a display screen, as well as several cooling fans and maintenance doors for device control, status monitoring, heat dissipation, and internal maintenance.

[0053] A dual Y-axis motion mechanism 200 is mounted on the base 100. The dual Y-axis motion mechanism 200 includes two sets of Y-axis motion units arranged parallel to each other along the Y-axis direction. Each Y-axis motion unit includes a Y-axis sliding slide 210, a support component 220 mounted on the Y-axis sliding slide 210, and a Y-axis servo drive component 230 that drives the Y-axis sliding slide 210 to move along the Y-axis. Each Y-axis servo drive component 230 includes two Y-axis linear guides 233 and a Y-axis ball screw 232. The support component 220 is used to support materials. A tooling fixture for placing the product to be riveted can be configured on the upper part of the support component 220. The tooling fixture can be quickly changed according to different products.

[0054] The X-axis motion mechanism 300 includes a gantry 310, an X-axis sliding table 320, and an X-axis servo drive assembly that drives the X-axis sliding table 320 to move along the X-axis direction. The gantry 310, with a robust frame structure, is mounted on the base 100 along the X-axis direction and spans across the dual Y-axis motion mechanism 200, forming a working area that allows the Z-axis pressing riveting mechanism 400 to quickly switch between two Y-axis positions. The X-axis servo drive assembly is mounted on the gantry 310 along the X-axis direction. A cable chain is provided on the top of the gantry 310 for managing the power and signal lines of the X-axis sliding table 320 and the Z-axis pressing riveting mechanism 400.

[0055] The Z-axis pressing riveting mechanism 400 is mounted on the X-axis moving slide 320. The Z-axis pressing riveting mechanism 400 includes a riveting head assembly 410 and a Z-axis servo drive assembly 420. The Z-axis servo drive assembly 420 includes a Z-axis servo motor 421 and a reducer 422 connected to the output of the Z-axis servo motor 421. The reducer 422 drives the riveting head assembly 410 to move along the Z-axis. The riveting head assembly 410 includes a riveting head 411 and a rotary motor 412 for driving the riveting head 411 to rotate. The riveting head assembly 410 is equipped with a quick-change mechanism, allowing the riveting head 411 to be easily and quickly changed according to different application scenarios and rivet specifications, thus meeting diverse product needs and achieving multi-purpose functionality.

[0056] The control system electrically connects to and coordinates the control of the Y-axis servo drive assembly 230, the X-axis servo drive assembly, the Z-axis servo motor 421, and the rotary motor 412. The control system enables precise displacement of each axis and supports multi-segment programming, including control of torque, speed, and displacement velocity. The control system can meet the different process requirements of the pre-pressing, spinning, and holding pressure stages. The riveting results are recorded with data and waveforms, are traceable, and can be exported and uploaded to the MES system. After connecting to a computer, the control system can provide torque curves, providing a reference for quality control and process optimization.

[0057] Specifically, the Z-axis pressing riveting mechanism 400 also includes a Z-axis moving slide 430. The Z-axis servo drive assembly 420 also includes two Z-axis linear guides 424 and a Z-axis ball screw 423. The output end of the reducer 422 is connected to the Z-axis ball screw 423, and the riveting head assembly 410 is connected to the Z-axis ball screw 423 via the Z-axis moving slide 430 and moves along the Z-axis direction under the guidance of the Z-axis linear guides 424.

[0058] The X-axis servo drive assembly also includes an X-axis servo motor 331, an X-axis ball screw 332, and three sets of X-axis linear guides 333. The X-axis moving slide 320 is connected to the X-axis ball screw 332 via a ball screw nut. The X-axis servo motor 331 is mounted at one end of the gantry 310 and is connected to the X-axis ball screw 332 via a coupling.

[0059] Three sets of X-axis linear guides 333 are provided. Two sets of X-axis linear guides 333 are arranged parallel to the XZ plane and horizontally along the X-axis direction on the inner walls on both sides of the gantry 310. One set of X-axis linear guides 333 is arranged parallel to the XY plane and vertically on the upper or middle part of the gantry 310. Each set of X-axis linear guides 333 includes a linear track and two linear sliders that slide with the linear track. The X-axis moving slide 320 is connected to the linear sliders of each X-axis linear guide 333. Therefore, the X-axis motion mechanism 300 includes a total of three linear tracks and six linear sliders.

[0060] Along the Z-axis direction, an X-axis linear guide 333 parallel to the XY plane is positioned between two sets of X-axis linear guides 333 parallel to the XZ plane. The X-axis moving slide 320 has a "├" shaped cross-section in the YZ plane, and its structural design makes full use of space to provide a stable mounting platform for the Z-axis pressing and riveting mechanism 400.

[0061] The support assembly 220 includes a base plate 221 and a mounting plate 222. A pressure sensor 223, cylindrical in shape, is located between the base plate 221 and the mounting plate 222. At least four cylindrical locating pins 224 are also provided around the top surface of the base plate 221. The mounting plate 222 is movably connected to the base plate 222 via the locating pins 224. The pressure sensor 223 is electrically connected to the control system and is used to detect the pressure acting on the mounting plate 222 in real time and transmit the corresponding pressure signal to the control system.

[0062] The Y-axis servo drive assembly 230 also includes a Y-axis servo motor 231, a Y-axis ball screw 232, and two Y-axis linear guides 233. The Y-axis moving slide 210 is connected to the Y-axis ball screw 232 via a ball screw nut, and the base plate 221 is connected to the Y-axis moving slide 210. The Y-axis servo motor 231 is mounted at one end of the Y-axis motion unit.

[0063] The Y-axis moving slide 210 has upward protrusions on both sides, and its cross-section on the XZ plane is U-shaped. The protrusions on both sides of the Y-axis moving slide 210 are connected to the bottom surface of the base plate 221. A gap is formed between the middle of the Y-axis moving slide 210 and the base plate 221. A baffle 240 is provided in the gap. The baffle 240 is clearance-fitted with the Y-axis moving slide 210 and the base plate 221. The baffle 240 is used to cover the Y-axis servo drive assembly 230, effectively preventing dust and debris from entering the Y-axis ball screw 232 and the Y-axis linear guide 233, thus extending their service life.

[0064] The top surface of the base plate 221 has a first groove 225 corresponding to the contour of the pressure sensor 223. The pressure sensor 223 is partially embedded in the first groove 225 and fixedly connected to the base plate 221. The bottom surface of the base plate 221 has two second grooves 226 corresponding to the protrusions on both sides of the Y-axis sliding slide 210. The protrusions on both sides of the Y-axis sliding slide 210 are embedded in the second grooves 226 and fixedly connected to the base plate 221. This groove-embedded design increases the stability and accuracy of the connection.

[0065] In actual operation, the operator places the product to be riveted on the support component 220 (i.e., tooling base) of one of the Y-axis motion units and presses the start button. The control system coordinates the control of each servo drive component. The X-axis motion mechanism 300 moves the Z-axis pressing riveting mechanism 400 above the designated Y-axis motion unit, and the Z-axis servo drive component 420 drives the riveting head assembly 410 downward to the product riveting position. The riveting head assembly 410 drives the riveting head 411 to rotate via the rotary motor 412, and simultaneously presses down via the Z-axis servo drive component 420, riveting the two products to be connected together. The riveting head assembly 410 is connected via two hoses for gas or liquid delivery. While the Z-axis pressing riveting mechanism 400 is riveting at one station, another Y-axis motion unit can perform loading and unloading operations at its station, achieving efficient parallel operation. The equipment's cable chain system effectively houses and protects the cables and pipes on the motion axes, ensuring long-term stable operation of the equipment.

[0066] The dual Y-axis servo riveting equipment provided in this embodiment significantly improves the efficiency and quality of automated riveting processes through its dual-station parallel operation capability and full servo high-precision control. The dual Y-axis motion mechanism 200 allows for simultaneous workpiece loading and unloading at one station while the Z-axis pressing riveting mechanism 400 performs precision riveting, greatly shortening non-processing time and multiplying production efficiency and equipment utilization. Combined with the X, Y, and Z-axis full servo drive system, the equipment achieves micron-level precise positioning and force control, ensuring consistent riveting position, depth, and pressure, resulting in robust, aesthetically pleasing, and consistently high-quality riveted joints. The layout of three sets of X-axis linear guides 333 and the dustproof protection of the Y-axis significantly enhance the rigidity, reliability, and durability of the equipment, reducing maintenance requirements.

[0067] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0068] Furthermore, it should be noted that the use of terms such as "first" and "second" is merely for ease of distinction, and unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0069] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual Y-axis servo riveting device, characterized in that, include: Base (100); A dual Y-axis motion mechanism (200) is mounted on the base (100) and includes two sets of Y-axis motion units arranged parallel to each other along the Y-axis direction. Each set of Y-axis motion units includes a Y-axis moving slide (210), a bearing component (220) mounted on the Y-axis moving slide (210), and a Y-axis servo drive component (230) that drives the Y-axis moving slide (210) to move along the Y-axis direction. The bearing component (220) is used to carry materials. The X-axis motion mechanism (300) includes a gantry (310), an X-axis moving slide (320), and an X-axis servo drive assembly for driving the X-axis moving slide (320) to move along the X-axis direction. The gantry (310) is disposed on the base (100) along the X-axis direction and spans across the dual Y-axis motion mechanism (200). The X-axis servo drive assembly is disposed on the gantry (310) along the X-axis direction. The Z-axis pressing riveting mechanism (400) is mounted on the X-axis moving slide (320). The Z-axis pressing riveting mechanism (400) includes a riveting head assembly (410) and a Z-axis servo drive assembly (420). The Z-axis servo drive assembly (420) includes a Z-axis servo motor (421) and a reducer (422) connected to the output end of the Z-axis servo motor (421). The reducer (422) drives the riveting head assembly (410) to move along the Z-axis direction. The riveting head assembly (410) includes a riveting head (411) and a rotary motor (412) for driving the riveting head (411) to rotate. The control system is electrically connected to and coordinates the control of the Y-axis servo drive assembly (230), the X-axis servo drive assembly, the Z-axis servo motor (421), and the rotary motor (412).

2. The dual Y-axis servo riveting device according to claim 1, characterized in that: The Z-axis pressing riveting mechanism (400) also includes a Z-axis moving slide (430); The Z-axis servo drive assembly (420) also includes a Z-axis ball screw (423) and a Z-axis linear guide (424); The output end of the reducer (422) is connected to the Z-axis ball screw (423). The riveting head assembly (410) is connected to the Z-axis ball screw (423) via the Z-axis moving slide (430) and moves along the Z-axis direction under the guidance of the Z-axis linear guide (424).

3. The dual Y-axis servo riveting device according to claim 1, characterized in that: The X-axis servo drive assembly also includes an X-axis servo motor (331), an X-axis ball screw (332), and an X-axis linear guide (333). The X-axis moving slide (320) is connected to the X-axis ball screw (332) via a ball screw nut. The X-axis servo motor (331) drives the X-axis ball screw (332). The X-axis moving slide (320) is connected to the X-axis linear guide (333).

4. The dual Y-axis servo riveting device according to claim 3, characterized in that: The X-axis linear guide (333) is provided in three sets, of which two sets of the X-axis linear guide (333) are arranged parallel to the XZ plane, and one set of the X-axis linear guide (333) is arranged parallel to the XY plane; Each X-axis linear guide (333) includes a linear track and two linear sliders that slide with the linear track. The X-axis moving slide (320) is connected to the linear sliders of each X-axis linear guide (333).

5. The dual Y-axis servo riveting device according to claim 4, characterized in that: Along the Z-axis direction, the X-axis linear guide (333) parallel to the XY plane is disposed between two sets of X-axis linear guides (333) parallel to the XZ plane; The X-axis moving slide (320) has a cross-section in the YZ plane that is shaped like a "├".

6. The dual Y-axis servo riveting device according to claim 1, characterized in that: The supporting component (220) includes a base plate (221) and a mounting plate (222). A pressure sensor (223) is also provided between the base plate (221) and the mounting plate (222). The pressure sensor (223) is located at the center of the base plate (221). A positioning pin (224) is also provided around the top surface of the base plate (221). The mounting plate (222) is movably connected to the base plate (221) through the positioning pin (224). The pressure sensor (223) is electrically connected to the control system. The pressure sensor (223) is used to detect the pressure acting on the mounting plate (222) in real time and transmit the corresponding pressure signal to the control system.

7. The dual Y-axis servo riveting device according to claim 6, characterized in that: The Y-axis servo drive assembly (230) includes a Y-axis servo motor (231), a Y-axis ball screw (232), and a Y-axis linear guide (233). The Y-axis moving slide (210) is connected to the Y-axis ball screw (232) via a ball screw nut. The base plate (221) is connected to the Y-axis moving slide (210). The Y-axis servo motor (231) drives the Y-axis ball screw (232). The Y-axis moving slide (210) is slidably connected to the Y-axis linear guide (233).

8. The dual Y-axis servo riveting device according to claim 7, characterized in that: The Y-axis moving slide (210) has upward protrusions on both sides, and its cross-section on the XZ plane is U-shaped. The protrusions on both sides of the Y-axis moving slide (210) are connected to the bottom surface of the base plate (221). A gap is formed between the middle part of the Y-axis moving slide (210) and the base plate (221). A baffle (240) is provided in the gap. The baffle (240) is clearance-fitted with the Y-axis moving slide (210) and the base plate (221). The baffle (240) is used to cover the Y-axis servo drive assembly (230).

9. The dual Y-axis servo riveting device according to claim 8, characterized in that: The top surface of the base plate (221) is provided with a first groove (225) corresponding to the outline of the pressure sensor (223), and the pressure sensor (223) is partially embedded in the first groove (225) and fixedly connected to the base plate (221). The bottom surface of the base plate (221) is provided with a second groove (226) corresponding to the protrusions on both sides of the Y-axis moving slide (210). The protrusions on both sides of the Y-axis moving slide (210) are embedded in the second groove (226) and fixedly connected to the base plate (221).

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