A riveting device with mechanical compensation and visual positioning compensation

Abstract

This invention discloses a riveting device with mechanical compensation and visual positioning compensation. A bracket is mounted on the Z-axis moving component, a mechanical compensation mechanism is mounted at the bottom of the bracket, and a visual positioning compensation mechanism is also mounted on the bracket, located to one side of the mechanical compensation mechanism. The beneficial effects of this invention are: through two eccentric rotations, the position of the guide positioning pin can be adaptively adjusted according to the hole positions on the insulating plate, thereby ensuring the alignment accuracy between the guide positioning pin and the hole positions. Moreover, after the previous hole position is riveted, the guide positioning pin can return to its initial state under the action of the elastic compensation spring, thus preventing excessive misalignment of the guide positioning pin due to the accumulation of processing errors, which would cause product scrap. The visual positioning compensation mechanism allows for position confirmation before riveting, ensuring riveting accuracy. The workpiece fixing device enables quick changes, thereby ensuring processing efficiency.

Description

Technical Field

[0001] This invention relates to the riveting of connector contacts, and in particular to a riveting device with mechanical compensation and visual positioning compensation. Background Technology

[0002] Currently, both the contacts and rivets in connectors are manually riveted. The manual assembly process involves manually inserting the contacts and rivets into an insulating plate, then using a hammer to strike the rivet head and rivet the rivet into the contact. This riveting method has the following disadvantages: a. The striking force of the manual hammer is not uniform enough, and the riveted finished product is prone to misalignment and displacement. b. Currently, manual riveting results in high levels of human error affecting product consistency and quality, leading to overall low efficiency. c. Each strike requires alignment, resulting in a high number of strikes and high labor intensity. d. If the striking force is insufficient on the first strike, it needs to be struck again, which requires a high degree of reliance on human skill and experience. e. Currently, riveting is done manually, and there is an urgent need to implement semi-automatic or automatic functions to improve efficiency; f. The insulating board has many holes, and riveting a single board can take dozens of steps. If one or more riveting processes fail to meet quality standards, the board needs to be disassembled and re-riveted, which is a complex process. This inevitably affects riveting efficiency. Furthermore, the contact parts and rivet sleeves are coated with precious metals, and riveting errors can easily increase the cost of a single piece of equipment. g. The manual riveting process involves loading the material, riveting, loading the material again, and riveting again, resulting in low efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a riveting device with mechanical compensation and visual positioning compensation.

[0004] The objective of this invention is achieved through the following technical solution: A riveting device with mechanical compensation and visual positioning compensation, comprising a frame, a work platform on the frame, a Y-axis moving component on the work platform, a workpiece fixing device slidably mounted on the Y-axis moving component, the workpiece fixing device being movable along the Y-axis moving component, a vertical frame on the frame, an X-axis moving component on the vertical frame, a Z-axis moving component slidably mounted on the X-axis moving component, the Z-axis moving component being movable along the X-axis moving component, a bracket mounted on the Z-axis moving component, a mechanical compensation mechanism mounted at the bottom of the bracket, and a visual positioning compensation mechanism mounted on the bracket, the visual positioning compensation mechanism being located at the mechanical compensation... On one side of the mechanism, the mechanical compensation mechanism includes a fixed bearing housing, an eccentric bearing housing, and a rotating rod. A first bearing is installed inside the fixed bearing housing. The eccentric bearing housing is fitted inside the inner ring of the first bearing. An eccentric stepped through hole is installed inside the eccentric bearing housing. A second bearing is fitted inside the eccentric stepped through hole. The rotating rod is fitted inside the inner ring of the second bearing. A guide positioning pin is installed on the rotating rod. The axis of the guide positioning pin, the axis of the eccentric stepped through hole, and the axis of the fixed bearing housing are not on the same straight line. The rotating rod has a convex ring located below the fixed bearing housing. Elastic compensation springs are installed on opposite sides of the convex ring. The other end of the elastic compensation spring is installed at the bottom of the fixed bearing housing through a spring seat.

[0005] Optionally, the visual positioning compensation mechanism includes a camera and a light source. A camera mounting bracket is installed on the top outer side of the bracket, and a camera is mounted on the camera mounting bracket. A light source mounting bracket is installed on the top outer side of the bracket, and a light source is mounted on the light source mounting bracket. The light source is located below the camera.

[0006] Optionally, the workpiece fixing device includes a base, a fixed seat, and an insulating plate. The base is mounted on the Y-axis moving component, and angled stop bars are installed on the base. The fixed seat has a mating surface that matches the inner side of the stop bar. The fixed seat is mounted on the base, and the mating surface of the fixed seat fits against the inner side of the corresponding stop bar. The insulating plate is mounted on the fixed seat, and a pressing fixing mechanism is installed on the fixed seat. The pressing fixing mechanism presses the fixed seat tightly onto the base.

[0007] Optionally, the top of the base is provided with a protruding positioning pin, and the top of the fixing seat is provided with a positioning hole, in which a positioning sleeve matching the positioning pin is installed.

[0008] Optionally, a magnet mounting hole is provided on the mating surface of the fixing base, and a magnet is installed in the magnet mounting hole. The mating surface of the fixing base is attached to the inner side of the corresponding baffle under the magnetic attraction of the magnet.

[0009] Optionally, a notch or groove is provided on the bottom edge of the mounting base.

[0010] Optionally, the pressing and fixing mechanism includes a positioning screw, the top of which is provided with a radial protrusion. A compression spring and a pressure plate are sleeved on the positioning screw. The pressure plate is located below the compression spring, and the pressure plate presses the fixing seat tightly under the action of the elastic restoring force of the compression spring.

[0011] Optionally, a stepped through hole is provided inside the rotating rod. The axis of the stepped through hole, the axis of the eccentric stepped through hole, and the axis of the fixed bearing seat are not on the same straight line. The guide positioning pin is slidably installed in the small hole of the stepped through hole, and the bottom of the guide positioning pin protrudes through the rotating rod. The top of the guide positioning pin is provided with a limiting boss, which is located in the large hole of the stepped through hole. A compression spring is also installed in the large hole of the stepped through hole. An adjusting screw is installed at the top of the stepped through hole. The bottom of the compression spring abuts against the limiting boss, and the top of the compression spring abuts against the adjusting screw.

[0012] Optionally, the fixed bearing housing has two stepped holes. The first bearing is fitted into the first stepped hole. A pressure cap is installed on the top of the fixed bearing housing, which presses tightly against the outer ring of the first bearing. A flange is provided at the bottom of the eccentric bearing housing. The flange is located on the second stepped hole of the fixed bearing housing, and the bottom of the inner ring of the first bearing presses against the top of the flange. A first snap ring groove is provided on the top of the outer circle of the eccentric bearing housing. A first snap ring is installed in the first snap ring groove, and the bottom of the outer edge of the first snap ring abuts against the top of the inner ring of the first bearing. A second snap ring groove is provided on the large hole of the eccentric stepped through hole. A second snap ring is installed in the second snap ring groove, and the bottom of the inner edge of the second snap ring abuts against the outer ring of the second bearing. A third snap ring groove is provided on the top of the rotating rod. A third snap ring is installed in the third snap ring groove, and the bottom of the outer edge of the third snap ring abuts against the inner ring of the second bearing.

[0013] Optionally, the convex ring has two opposing planes, on which a connector is mounted. The connector has a hanging hole, and one end of the elastic compensating spring is attached to the hanging hole.

[0014] The present invention has the following advantages: 1. The mechanical compensation mechanism of the present invention, through two eccentric rotations, allows the position of the guide positioning pin to be adaptively adjusted according to the hole position on the insulating plate, thereby ensuring the alignment accuracy between the guide positioning pin and the hole position, and thus ensuring the accuracy of the rivet sleeve and the contact part during the riveting process. Moreover, after the previous hole position is riveted, the guide positioning pin can be in the initial state under the action of the elastic compensation spring, so that when processing the hole position of the workpiece, the processing error of the hole position of the previous workpiece will not affect the hole position of the next workpiece. In other words, when riveting the workpiece, the guide positioning pin will not be misaligned too much due to the superposition of processing errors, resulting in product scrap. 2. The present invention uses a visual positioning compensation mechanism to confirm the position before riveting to ensure riveting accuracy, and then uses a mechanical compensation mechanism for secondary compensation to further ensure the riveting accuracy of the product. 3. The workpiece fixing device of the present invention enables quick changes, thereby ensuring processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the riveting equipment. Figure 2 Schematic diagram of the mechanical compensation mechanism Figure 1 ; Figure 3 Schematic diagram of the mechanical compensation mechanism Figure 2 ; Figure 4 This is a schematic diagram of the gland installation; Figure 5 This is a cross-sectional schematic diagram of a mechanical compensation mechanism; Figure 6 This is a schematic diagram of the installation of an elastic compensation spring; Figure 7 This is a schematic diagram of the structure of an eccentric bearing housing; Figure 8 This is a cross-sectional schematic diagram of an eccentric bearing housing; Figure 9 This is a schematic diagram of the structure of a fixed bearing housing; Figure 10 A schematic diagram of the installation of the visual positioning compensation mechanism; Figure 11 Schematic diagram of the workpiece fixing device Figure 1 ; Figure 12 This is a schematic diagram of the magnet installation. Figure 13 A schematic diagram of the structure in which the locating pin is installed on the base; Figure 14 This is a schematic diagram of the structure of the fixed base; In the diagram, 101-fixed bearing housing, 102-pressure cap, 103-first bearing, 104-first snap ring, 105-second snap ring, 106-adjusting screw, 107-second bearing, 108-eccentric bearing housing, 109-rotating rod, 110-compression spring, 111-guide positioning pin, 112-third snap ring, 113-stepped through hole, 114-convex ring, 115-connector, 116-elastic compensation spring, 117-spring seat, 118-eccentric stepped through hole, 119-second snap ring groove, 120-first snap ring groove, 121-flange, 122-third snap ring groove, 123- 124-Secondary step hole, 125-Ejection hole, 10-Frame, 20-Y-axis moving assembly, 30-Workpiece fixing device, 40-Upright frame, 50-X-axis moving assembly, 60-Z-axis moving assembly; 31-Base, 32-Fixed seat, 33-Insulating plate, 34-Stop bar, 35-Positioning screw, 36-Compression spring, 37-Pressure plate, 38-Magnet mounting hole, 39-Magnet, 41-Pin, 42-Positioning pin, 43-Positioning hole, 44-Positioning sleeve, 45-Notch, 71-Bracket, 72-Camera, 73-Light source, 74-Light source mounting bracket, 75-Camera mounting bracket. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figure 1As shown, a riveting device with mechanical compensation and visual positioning compensation includes a frame 10, a work platform on the frame 10, a Y-axis moving component 20 on the work platform, a workpiece fixing device 30 slidably mounted on the Y-axis moving component 20, and the workpiece fixing device 30 movable along the Y-axis moving component 20 in the Y direction. The frame 10 also has a stand 40, an X-axis moving component 50 on the stand 40, and a Z-axis moving component 60 slidably mounted on the X-axis moving component 50, which can move along the X-axis moving component 50 in the X direction. In this embodiment, the Y-axis moving component 20, the X-axis moving component 50, the Z-axis moving component 60, and the workpiece fixing device 30 are all existing structures and have not been improved. Therefore, their specific structures will not be described in detail here. In this embodiment, to facilitate the movement of the frame 10, a... The bottom of the frame 10 is equipped with casters with locking mechanisms. This structure is also an existing structure, so the specific installation method of the casters will not be described in detail. In this embodiment, a material box is placed on the work platform. The material box is located on one side of the Y-axis moving component 20. In this embodiment, the above-mentioned mechanical compensation mechanism is slidably installed on the Z-axis moving component 60. The mechanical compensation mechanism can move along the Z-axis moving component 60 in the Z direction. Of course, in order to further improve the automation level of the riveting device, the Y-axis movement of the workpiece fixing device 30, the X-axis movement of the Z-axis moving component 60, and the Z-axis movement of the mechanical compensation mechanism are all automatically controlled, that is, there is a controller. In this application, controlling the Y-axis movement of the workpiece fixing device 30, the X-axis movement of the Z-axis moving component 60, and the Z-axis movement of the mechanical compensation mechanism is also existing technology, so it will not be described in detail here.

[0023] In this embodiment, as Figure 1 As shown, a bracket 71 is mounted on the Z-axis moving component 60, and a mechanical compensation mechanism is mounted on the bottom of the bracket 71. In this embodiment, as shown... Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the mechanical compensation mechanism includes a fixed bearing housing 101, an eccentric bearing housing 108, and a rotating rod 109. A first bearing 103 is installed inside the fixed bearing housing 101, and the eccentric bearing housing 108 is fitted inside the inner ring of the first bearing 103. Figure 7 and Figure 8 As shown, an eccentric stepped through hole 118 is installed inside the eccentric bearing housing 108. A second bearing 107 is fitted inside the eccentric stepped through hole 118. A rotating rod 109 is fitted inside the inner ring of the second bearing 107. A guide positioning pin 111 is installed on the rotating rod 109. The axis of the guide positioning pin 111, the axis of the eccentric stepped through hole 118, and the axis of the fixed bearing housing 101 are not on the same straight line. The rotating rod 109 has a convex ring 114, which is located below the fixed bearing housing 101. Figure 6 As shown, elastic compensating springs 116 are installed on opposite sides of the convex ring 114. The other end of the elastic compensating spring is installed at the bottom of the fixed bearing seat 101 through the spring seat 117. When the second bearing 107 rotates, since the axis of the guide positioning pin 111 is eccentrically set with the axis of the eccentric stepped through hole 118, that is, the guide positioning pin 111 and the second bearing 107 are eccentrically set. When the second bearing 107 rotates, the guide positioning pin 111 will draw a circle with the eccentricity as the radius and the axis of the second bearing 107 as the center. This is the first circle. And since the axis of the eccentric stepped through hole 118 and the axis of the fixed bearing seat 101 are not on the same straight line... Therefore, the second bearing 107 and the first bearing 103 are also eccentrically set. The second bearing 107 will draw a circle with the eccentricity as the radius and the axis of the first bearing 103 as the center. This is the second circle. The first circle and the second circle have an intersection area. The guide positioning pin 111 can be positioned at any point in the intersection area of ​​the first circle and the second circle. Therefore, in the design, according to the characteristics of the workpiece, the floating area of ​​the guide positioning pin 111 when it is riveted to the workpiece is depicted. Then, the eccentricity of the two eccentricities is calculated based on the floating area, so that the intersection area completely covers the floating area. Therefore, in use, when the guide positioning pin 111 deviates from the hole position of the workpiece, the guide positioning pin 111 will be subjected to force. The guide positioning pin 111 transmits power to the second bearing 107 via the rotating rod 109, and the second bearing 107 transmits power to the first bearing 103 via the eccentric bearing seat 108. This causes the rotating rod 109 to rotate relative to the second bearing 107, and the eccentric bearing seat 108 to rotate relative to the first bearing 103. Through the rotation of the first bearing 103 and the second bearing 107, the guide positioning pin 111 automatically matches the riveting position corresponding to the workpiece hole, thus ensuring riveting accuracy and preventing misalignment or displacement of the riveted product. However, due to the rotation of the first bearing 103 and the second bearing 107, the position of the rotating rod 109 changes. At this time, the spring... The elastic compensation spring 116 adapts to the workpiece. After the previous hole is riveted, the elastic compensation spring 116 resets under the action of elastic restoring force, thereby resetting the rotating rod 109 and the guide positioning pin 111. At this time, the first bearing 103 and the second bearing 107 also rotate adaptably. Therefore, when riveting the next hole, the guide positioning pin 111 is in its initial state. This ensures that when processing the holes of the workpiece, the processing error of the previous hole will not affect the hole of the next workpiece. In other words, when riveting the workpiece, the guide positioning pin 111 will not be misaligned too much due to the superposition of processing errors, thus preventing the product from being scrapped.

[0024] In this embodiment, a stepped through hole 113 is provided inside the rotating rod 109. The axis of the stepped through hole 113, the axis of the eccentric stepped through hole 118, and the axis of the fixed bearing seat 101 are not on the same straight line. The guide positioning pin 111 is slidably installed in the small hole of the stepped through hole 113, and the bottom of the guide positioning pin 111 protrudes from the rotating rod 109. The top of the guide positioning pin 111 is provided with a limiting boss, which is located in the large hole of the stepped through hole 113. A compression spring 110 is also installed inside the large hole 113. An adjusting screw 106 is installed on the top of the stepped through hole 113. The bottom of the compression spring 110 abuts against the limiting boss, and the top of the compression spring 110 abuts against the adjusting screw 106. By adjusting the position of the adjusting screw 106, the amount of extension and retraction of the compression spring 110 can be changed. Thus, during use, the pressure of the compression spring 110 on the guide positioning pin 111 can be ensured by adjusting the adjusting screw 106.

[0025] In this embodiment, as Figure 9 As shown, the fixed bearing housing 101 has two-stage stepped holes. The first bearing 103 is fitted into the first-stage stepped hole 123. A pressure cap 102 is installed on the top of the fixed bearing housing 101. The pressure cap 102 presses tightly against the outer ring of the first bearing 103, thereby fixing the axial position of the first bearing 103. Further, as... Figure 7 and Figure 8 As shown, the bottom of the eccentric bearing housing 108 is provided with a flange 121. The flange 121 is located on the secondary stepped hole 124 of the fixed bearing housing 101, and the bottom of the inner ring of the first bearing 103 presses against the top of the flange 121. When the axial position of the first bearing 103 is fixed, the position of the eccentric bearing housing 108 is also fixed. In this embodiment, the top of the outer circle of the eccentric bearing housing 108 is provided with a first snap ring groove 120. A first snap ring 104 is installed in the first snap ring groove 120, and the bottom of the outer edge of the first snap ring 104 abuts against the top of the inner ring of the first bearing 103, further ensuring the first bearing The axial position of 103 is fixed. In this embodiment, a second snap ring groove 119 is provided on the large hole of the eccentric stepped through hole 118. A second snap ring 105 is installed in the second snap ring groove 119. The bottom of the inner edge of the second snap ring 105 abuts against the outer ring of the second bearing 107, thereby ensuring that the axial position of the second bearing 107 is fixed. Furthermore, a third snap ring groove 122 is provided on the top of the rotating rod 109. A third snap ring 112 is installed in the third snap ring groove 122. The bottom of the outer edge of the third snap ring 112 abuts against the inner ring of the second bearing 107, further ensuring that the axial position of the second bearing 107 is fixed.

[0026] In this embodiment, as Figure 9As shown, the bottom of the fixed bearing housing 101 is provided with an ejection hole 125 from bottom to top, and the ejection hole 125 forms an arc-shaped groove on the hole wall of the first-stage stepped hole 123. When it is necessary to disassemble the first bearing 103, a tool can be inserted from the bottom of the ejection hole 125 to eject the first bearing 103 from the fixed bearing housing 101.

[0027] In this embodiment, as Figure 6 As shown, the convex ring 114 has two opposing planes, on which a connector 115 is mounted. The connector 115 has a hanging hole, and one end of the elastic compensating spring 116 is hooked onto the hanging hole, thus facilitating the installation of the elastic compensating spring 116.

[0028] In this embodiment, as Figure 10 As shown, a visual positioning compensation mechanism 70 is also installed on the bracket 71. The visual positioning compensation mechanism 70 is located on one side of the mechanical compensation mechanism. Furthermore, as shown... Figure 10 As shown, the visual positioning compensation mechanism 70 includes a camera 72 and a light source 73. A camera mounting bracket 75 is installed on the top outer side of the bracket 71, and the camera 72 is mounted on the camera mounting bracket 75. A light source mounting bracket 74 is installed on the top outer side of the bracket 71, and the light source 73 is mounted on the light source mounting bracket 74. The light source 73 is located below the camera 72. Since both the visual positioning compensation mechanism 70 and the mechanical compensation mechanism are mounted on the bracket 71, their relative positions are fixed. Before riveting, the visual positioning compensation mechanism 70 is located on the workpiece fixing device. The riveting point is confirmed by taking a picture with camera 72 above the 30. After the riveting point is confirmed, the riveting is performed. In this embodiment, the riveting equipment has a PLC control system with a workpiece reference. By comparing the pictures, the position of the riveting hole on the workpiece can be initially obtained. Then, by comparing the images, the offset of the riveting hole on the workpiece can be obtained. Then, the X-axis moving component 50 and the Y-axis moving component 20 are controlled and adjusted to move to achieve the first displacement compensation. Then, the mechanical compensation mechanism is used for the second displacement compensation to further ensure the riveting quality.

[0029] In this embodiment, as Figure 11 and Figure 12As shown, the workpiece fixing device 30 includes a base 31, a fixing seat 32, and an insulating plate 33. The base 31 is mounted on the Y-axis moving assembly 20. Angle-angled baffles 34 are mounted on the base 31. The fixing seat 32 has a mating surface that matches the inner surface of the baffles 34. The fixing seat 32 is mounted on the base 31, and its mating surface is in contact with the inner surface of the corresponding baffle 34. The insulating plate 33 is mounted on the fixing seat 32, and a pressing fixing mechanism is mounted on the fixing seat 32. The pressing fixing mechanism presses the fixing seat 32 tightly onto the base 31. Furthermore, the included angle between the baffles 34 is [degree], and the fixing seat 32 is a square seat. During installation, the fixing seat 32 is placed on the base 31, and the mating surface of the fixing seat 32 is in contact with the inner surface of the corresponding baffle 34. This ensures the stability of the fixing seat 32's position each time it is placed, thereby ensuring the initial position of the workpiece is fixed. Further, as... Figure 13 As shown, the top of the base 31 is provided with a protruding positioning pin 42, such as... Figure 14 As shown, the top of the fixed base 32 is provided with a positioning hole 43, and a positioning sleeve 44 matching the positioning pin 42 is installed in the positioning hole 43. During installation, the positioning pin 42 and the positioning sleeve 44 are used to achieve the initial positioning of the fixed base 32 and the base 31. Then, the fixed base 32 is precisely positioned by the fit between the mating surface and the inner side of the stop strip 34. During use, the fixed base 32 is picked up and put down many times, up to several hundred times a day. Therefore, after long-term use, the positioning pin 42 will wear out, and a gap will be generated between the positioning pin 42 and the positioning sleeve 44. Therefore, the initial positioning is achieved by the fit between the positioning pin 42 and the positioning sleeve 44. Of course, in the design, when the positioning pin 42 and the positioning sleeve 44 are fitted, the mating surface of the fixed base 32 is exactly fitted with the inner side of the corresponding stop strip 34.

[0030] In this embodiment, as Figure 12 To further increase the installation efficiency of the fixing base 32, a magnet mounting hole 38 is provided on the mating surface of the fixing base 32. A magnet 39 is installed in the magnet mounting hole 38. Under the magnetic attraction of the magnet 39, the mating surface of the fixing base 32 fits against the inner side of the corresponding stop bar 34. After the positioning pin 42 is inserted into the positioning sleeve 44, the mating surface of the fixing base 32 will quickly fit against the inner side of the corresponding stop bar 34 under the magnetic attraction of the magnet 39, thereby completing the precise positioning of the fixing base 32.

[0031] In this embodiment, as Figure 14 As shown, a notch 45 is provided on the bottom edge of the fixed base 32, which facilitates the gripping of the fixed base 32 by the robot arm or the handling of the operator by hand.

[0032] In this embodiment, as Figure 11 and Figure 12As shown, the pressing and fixing mechanism includes a positioning screw 35, with a radial protrusion at the top. A compression spring 36 and a pressure plate 37 are sleeved on the positioning screw 35. The pressure plate 37 is located below the compression spring 36, and the pressure plate 37 presses the fixing seat 32 tightly under the elastic restoring force of the compression spring 36. During installation, the positioning screw 35 is loosened to reduce the elastic restoring force of the compression spring 36, thereby facilitating the sliding of the pressure plate 37. After the pressure plate 37 presses on the fixing seat 32, the compression spring 36 is then locked, thereby increasing the elastic restoring force of the compression spring 36 and ensuring that the pressure plate 37 presses tightly against the fixing seat 32. In this embodiment, a pin 41 is also radially inserted through the positioning screw 35. The pin 41 is located below the pressure plate 37, thereby making the pressure plate 37 suspended and facilitating the application of an upward force to the pressure plate 37.

[0033] In this embodiment, as Figure 1 As shown, multiple fixed seats 32 are placed on the work platform, and an insulating plate 33 is placed on the fixed seat 32. After the previous workpiece is riveted, the fixed seat 32 can be placed directly on the base 31. During the riveting process, the operator can install the contact parts and rivet sleeves on the spare insulating plate 33, thereby improving the riveting efficiency.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A riveting device with mechanical compensation and visual positioning compensation, comprising a frame, a working platform on the frame, a Y-axis moving component on the working platform, a workpiece fixing device slidably mounted on the Y-axis moving component, the workpiece fixing device being movable along the Y-axis of the Y-axis moving component, a vertical frame on the frame, an X-axis moving component on the vertical frame, a Z-axis moving component slidably mounted on the X-axis moving component, the Z-axis moving component being movable along the X-axis moving component, characterized in that: A bracket is mounted on the Z-axis moving component. A mechanical compensation mechanism is mounted at the bottom of the bracket. A visual positioning compensation mechanism is also mounted on the bracket, located to one side of the mechanical compensation mechanism. The mechanical compensation mechanism includes a fixed bearing housing, an eccentric bearing housing, and a rotating rod. A first bearing is installed inside the fixed bearing housing. The eccentric bearing housing is fitted inside the inner ring of the first bearing. An eccentric stepped through hole is installed inside the eccentric bearing housing. A second bearing is fitted inside the eccentric stepped through hole. The rotating rod is fitted inside the inner ring of the second bearing. A guide positioning pin is installed on the rotating rod. The axis of the guide positioning pin, the axis of the eccentric stepped through hole, and the axis of the fixed bearing housing are not on the same straight line. The rotating rod has a convex ring located below the fixed bearing housing. Elastic compensation springs are installed on opposite sides of the convex ring. The other end of the elastic compensation spring is mounted on the bottom of the fixed bearing housing via a spring seat.

2. The riveting equipment with mechanical compensation and visual positioning compensation according to claim 1, characterized in that: The visual positioning compensation mechanism includes a camera and a light source. A camera mounting bracket is installed on the top outer side of the bracket, and the camera is mounted on the camera mounting bracket. A light source mounting bracket is installed on the top outer side of the bracket, and the light source is mounted on the light source mounting bracket. The light source is located below the camera.

3. A riveting device with mechanical compensation and visual positioning compensation according to claim 1 or 2, characterized in that: The workpiece fixing device includes a base, a fixing seat, and an insulating plate. The base is mounted on the Y-axis moving assembly, and angled stop bars are installed on the base. The fixing seat has a mating surface that matches the inner side of the stop bars. The fixing seat is mounted on the base, and the mating surface of the fixing seat is in contact with the inner side of the corresponding stop bar. The insulating plate is mounted on the fixing seat, and a pressing fixing mechanism is installed on the fixing seat. The pressing fixing mechanism presses the fixing seat tightly onto the base.

4. The riveting equipment with mechanical compensation and visual positioning compensation according to claim 3, characterized in that: The base has a raised positioning pin on its top, and the fixed seat has a positioning hole on its top, into which a positioning sleeve matching the positioning pin is installed.

5. A riveting device with mechanical compensation and visual positioning compensation according to claim 4, characterized in that: The mating surface of the fixing base is provided with a magnet mounting hole, and a magnet is installed in the magnet mounting hole. Under the magnetic attraction of the magnet, the mating surface of the fixing base is attached to the inner side of the corresponding baffle.

6. A riveting device with mechanical compensation and visual positioning compensation according to claim 5, characterized in that: The bottom edge of the fixing base has a notch or groove.

7. A riveting device with mechanical compensation and visual positioning compensation according to claim 6, characterized in that: The pressing and fixing mechanism includes a positioning screw with a radial protrusion at the top. A compression spring and a pressure plate are sleeved on the positioning screw. The pressure plate is located below the compression spring and presses the fixing seat tightly under the elastic restoring force of the compression spring.

8. A riveting device with mechanical compensation and visual positioning compensation according to claim 1 or 2, characterized in that: The rotating rod has a stepped through hole. The axis of the stepped through hole, the axis of the eccentric stepped through hole, and the axis of the fixed bearing seat are not on the same straight line. The guide positioning pin is slidably installed in the small hole of the stepped through hole, and the bottom of the guide positioning pin protrudes from the rotating rod. The top of the guide positioning pin is provided with a limiting boss. The limiting boss is located in the large hole of the stepped through hole. A compression spring is also installed in the large hole of the stepped through hole. An adjusting screw is installed at the top of the stepped through hole. The bottom of the compression spring abuts against the limiting boss, and the top of the compression spring abuts against the adjusting screw.

9. A riveting device with mechanical compensation and visual positioning compensation according to claim 1 or 2, characterized in that: The fixed bearing housing has two stepped holes. The first bearing is fitted into the first stepped hole. A pressure cap is installed on the top of the fixed bearing housing, which presses tightly against the outer ring of the first bearing. A flange is provided at the bottom of the eccentric bearing housing. The flange is located on the second stepped hole of the fixed bearing housing, and the bottom of the inner ring of the first bearing presses against the top of the flange. A first retaining ring groove is provided on the top of the outer circle of the eccentric bearing housing. A first retaining ring is installed in the first retaining ring groove, and the bottom of the outer edge of the first retaining ring abuts against the top of the inner ring of the first bearing. A second retaining ring groove is provided on the large hole of the eccentric stepped through hole. A second retaining ring is installed in the second retaining ring groove, and the bottom of the inner edge of the second retaining ring abuts against the outer ring of the second bearing. A third retaining ring groove is provided on the top of the rotating rod. A third retaining ring is installed in the third retaining ring groove, and the bottom of the outer edge of the third retaining ring abuts against the inner ring of the second bearing.

10. A riveting device with mechanical compensation and visual positioning compensation according to claim 8, characterized in that: The convex ring has two opposing planes, on which a connector is mounted. The connector has a hanging hole, and one end of the elastic compensating spring is attached to the hanging hole.

Images