Shielding cover flexible detection double track welding machine positioning and clamping mechanism

Abstract

The application discloses a shielding cover flexible detection double-track welding machine positioning and clamping mechanism and relates to the technical field of shielding cover welding machines. The application provides the following scheme: the shielding cover flexible detection double-track welding machine positioning and clamping mechanism comprises an air pipe, characterized in that a sliding block is arranged below the air pipe, springs are arranged between the sliding block and the air pipe, and a positioning and clamping part is arranged below the sliding block; the positioning and clamping part comprises an upper support, a positioning assembly is arranged on the upper support, a lower pressing shell is slidably arranged below the upper support, a connecting shell is arranged outside the lower pressing shell, and a protection assembly is arranged on the connecting shell. The application aims to provide the shielding cover flexible detection double-track welding machine positioning and clamping mechanism, so that the positioning and clamping effect can be achieved when a circular shielding cover part is welded and transferred.

Description

Technical Field

[0001] This invention discloses a positioning and clamping mechanism for a dual-track welding machine for flexible testing of shielding covers, which relates to the field of shielding cover welding machine technology. Background Technology

[0002] A shielding cover is a metal casing that protects electronic components from electromagnetic interference (EMI). It is typically made of copper alloys and covers critical components such as chips. A shielding cover soldering machine is an automated device used for high-speed, precise soldering of shielding covers onto PCB boards. It employs thermocompression welding or laser welding principles, using precise temperature and pressure control to ensure a reliable connection between the shielding cover pins and the solder pads. This equipment features visual positioning and multi-point synchronous soldering capabilities, ensuring consistency and high yield rates, significantly improving the shielding effectiveness and production automation level of products such as mobile phones and communication modules.

[0003] There are many types of shielding covers, and their shapes and sizes vary. On automated production lines, circular shielding covers are difficult to clamp and position due to their special shape. They are prone to displacement or deformation during clamping, which affects welding accuracy and yield. Therefore, it is necessary to provide a flexible detection dual-track welding machine positioning and clamping mechanism for shielding covers to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning and clamping mechanism for a flexible dual-track welding machine for shielding covers, so as to achieve the effect of positioning and clamping circular shielding cover parts during welding and transfer.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning and clamping mechanism for a flexible shielding cover testing double-track welding machine, comprising an air pipe, characterized in that: a sliding block is installed below the air pipe, a spring is installed between the sliding block and the air pipe, and a positioning and clamping component is installed below the sliding block; the positioning and clamping component comprises an upper bracket, a positioning component is installed on the upper bracket, a lower pressure shell is slidably installed below the upper bracket, a connecting shell is installed on the outside of the lower pressure shell, and a protective component is installed on the connecting shell.

[0006] Preferably, the positioning component includes a connecting seat, which is fixedly connected to a sliding block. An upper bracket is installed below the connecting seat. The air pipe passes through the central hole of the connecting seat, and an air nozzle is installed below the air pipe. A transmission frame is provided inside the upper bracket, and the transmission frame is fixedly connected to the air pipe. Four sets of positioning sliders are evenly arranged on the outer side of the transmission frame. A transmission block is slidably installed on the positioning slider and is slidably connected to the upper bracket. An inner push arc plate is installed at the lower end of the transmission block. Connecting plates are installed on both sides of the transmission block and are fixedly connected to the transmission frame. A flexible buffer layer is provided on the outer side of the inner push arc plate.

[0007] Preferably, the protective component includes a fixing block, which is fixedly connected to the upper bracket. An outer actuating block is installed on the fixing block, and an outer slider is slidably installed below the outer actuating block. An outer pressure arc plate is installed below the outer slider. The outer actuating block is slidably connected to the connecting shell, and the fixing block is slidably connected to the connecting shell. A flexible buffer layer is provided on the inner side of the outer pressure arc plate, and the inner push arc plate and the outer pressure arc plate are arranged concentrically and staggered.

[0008] Preferably, an elastic component is provided below the air nozzle.

[0009] Preferably, the transmission block is in the shape of a trapezoidal wedge block structure, the positioning slider on the transmission frame is in the shape of a trapezoidal wedge block structure, and an inner sliding groove is provided on the inclined surface of the transmission block, the inner sliding groove being slidably connected to the positioning slider.

[0010] Preferably, a through hole is also provided below the lower pressure shell.

[0011] Preferably, the outer slider is wedge-shaped, and the contact surface between the outer actuating block and the outer slider is an inclined surface.

[0012] Preferably, the lower pressure shell is slidably connected to the upper support.

[0013] Compared with existing technologies, the beneficial effects are:

[0014] 1. This invention achieves flexible adaptive covering of the outer wall of the shield and precise pushing and coordinating positioning of the inner wall through the concentric misalignment and coordinated action of the outer pressure arc plate and the inner pushing arc plate. It effectively solves the technical problems of traditional rigid clamping that easily cause scratches on the surface of the shield, local crushing and uneven circumferential constraint. It significantly improves the positioning accuracy and structural integrity of the shield during the transfer process before double-rail welding, and provides a highly repeatable and stable positioning benchmark for the subsequent double-rail welding process. At the same time, it provides good surface protection and structural support, providing an integrated clamping solution for double-rail welding machines that combines high-precision positioning, flexible protection and structural self-adaptation.

[0015] 2. The positioning component can pre-position the inner contour of the shielding cover. The cylinder drives the air pipe to push the sliding block downward, which drives the transmission frame to move downward synchronously. At this time, the transmission frame drives the four sets of positioning sliders to press downward at the same time. The transmission block is limited by the connecting plate, which forces the transmission block to slide outward in a straight line along the radial groove of the upper bracket. This drives the inner push arc plate to expand outward synchronously in the radial direction and fit into the inner circumference of the shielding cover, thereby realizing the adaptive radial positioning of the inner contour of the shielding cover. At the same time, the outer touch block and the outer slider convert the axial movement of the connecting shell into the radial elastic pressing action of the outer pressure arc plate through the inclined surface contact.

[0016] 3. When the connecting shell moves downward under the drive of the upper bracket, the outer actuating block moves downward synchronously. The outer slider slides to both sides after being subjected to force along the inclined plane, causing the outer pressure arc plate to shrink radially synchronously and elastically fit the outer wall of the shield. This process is to achieve adaptive wrapping of the outer wall of the circular protective cover, thereby forming a uniform and controllable radial wrapping force on the outer wall of the shield, ensuring that the outer wall of the shield is subjected to uniform force and no local stress concentration during the double-rail welding process. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall positioning and clamping mechanism of the dual-track welding machine for flexible testing of shielding covers;

[0018] Figure 2 for Figure 1 Schematic diagram of part A of the positioning and clamping mechanism of the dual-track welding machine for flexible testing of the shielding cover;

[0019] Figure 3 for Figure 1 A schematic diagram of the internal structure of the positioning component of the positioning clamping mechanism of the flexible testing double-rail welding machine for the middle shielding cover;

[0020] Figure 4 for Figure 4 A schematic diagram of part B in the positioning component;

[0021] Figure 5 for Figure 1 A schematic diagram of the internal structure of the protective components of the positioning and clamping mechanism of the flexible testing double-rail welding machine with a shielding cover;

[0022] Figure 6 for Figure 1 Top view of the positioning and clamping mechanism of the double-rail welding machine for flexible testing of the shielding cover;

[0023] The following are the labeling elements in the figure:

[0024] 1. Trachea 1; 2. Sliding block; 3. Spring;

[0025] 4. Positioning and clamping components; 41. Upper bracket; 43. Protective components; 431. Fixing block; 432. Outer actuating block; 433. Outer slider; 434. Outer pressure arc plate; 44. Positioning components; 442. Transmission frame; 443. Transmission block; 444. Inner push arc plate; 445. Elastic components; 446. Connecting plate; 447. Inner slide groove; 45. Lower pressure shell; 451. Through hole; 46. Connecting shell; 47. Connecting seat; 49. Air nozzle. Detailed Implementation

[0026] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Specific implementation examples:

[0028] like Figure 1 As shown, the positioning and clamping mechanism of the flexible testing double-track welding machine for shielding covers includes an air pipe 1, a sliding block 2 installed below the air pipe 1, a spring 3 installed between the sliding block 2 and the air pipe 1, and a positioning and clamping component 4 installed below the sliding block 2.

[0029] The basic working principle of the positioning and clamping mechanism is as follows: The positioning and clamping mechanism is installed on the transfer part of the double-track welding machine for flexible testing of shielding cover. The overall movement of the mechanism is driven by a cylinder. The cylinder is connected to the outside of the air pipe 1. The positioning and clamping component 4 is fixedly connected to the sliding block 2. The sliding block 2 and the air pipe 1 are elastically buffered by the spring 3. When the sliding block 2 slides along the axial direction of the air pipe 1, it drives the positioning and clamping component 4 to move synchronously. The main function of the positioning and clamping component 4 is to achieve accurate positioning and flexible clamping of the shielding cover workpiece.

[0030] like Figure 2 As shown, the positioning and clamping component 4 includes an upper bracket 41, on which a positioning component 44 is mounted. A lower pressure shell 45 is slidably mounted below the upper bracket 41. A connecting shell 46 is mounted on the outside of the lower pressure shell 45. A protective component 43 is mounted on the connecting shell 46.

[0031] The lower pressure shell 45 is used to press the shielding cover, and the positioning component 44 performs high-precision adaptive positioning and matching of the inner contour of the circular shielding cover to ensure that the clamping force is evenly distributed on the edge of the shielding cover. At the same time, the outer protective component 43 moves synchronously with the positioning component 44. While positioning, the outer contour of the circular shielding cover forms a flexible cover, effectively avoiding scratches or deformation during the clamping process.

[0032] The specific working principle of the positioning component 44 in this mechanism is as follows: Figures 3-4As shown, the positioning component 44 includes a connecting seat 47, which is fixedly connected to the sliding block 2. An upper bracket 41 is installed below the connecting seat 47. The air pipe 1 passes through the central hole of the connecting seat 47. An air nozzle 49 is installed below the air pipe 1. A transmission frame 442 is provided inside the upper bracket 41. The transmission frame 442 is fixedly connected to the air pipe 1. Four sets of positioning sliders (not shown in the figure) are evenly arranged on the outer side of the transmission frame 442. A transmission block 443 is slidably installed on the positioning slider. The transmission block 443 is slidably connected to the upper bracket 41. The movement position of the transmission block 443 is limited by the upper bracket 41 and only performs radial linear movement. An inner pusher plate 444 is installed at the lower end of the transmission block 443. Connecting plates 446 are installed on both sides of the transmission block 443 and are fixedly connected to the transmission frame 442.

[0033] In the positioning component 44, the air nozzle 49 is connected to the air pipe 1. The main function of the air nozzle 49 is to adsorb the inner wall surface of the shield and form a negative pressure adsorption force. In the meantime, the positioning component 44 needs to pre-position the inner contour of the shield. Its specific working principle is that the cylinder drives the air pipe 1 to push the sliding block 2 downward, which drives the transmission frame 442 to move down synchronously. At this time, the transmission frame 442 drives the four sets of positioning sliders to press down simultaneously. The transmission block 443 is limited by the connecting plate 446, which forces the transmission block 443 to slide outward in a straight line along the radial groove of the upper bracket 41, thereby driving the inner push arc plate 444 to expand outward in a radial direction and fit the inner circumference of the shield.

[0034] An elastic component 445 is provided below the air nozzle 49;

[0035] The elastic component 445 is composed of a spring element and a telescopic tube, which is a commonly used existing technology and will not be described in detail here. Its main function is to provide telescopic buffering. The telescopic tube is hollow inside and its outer wall is fixedly connected to the outer wall of the air nozzle 49.

[0036] When the positioning component 44 pre-positions the inner wall of the shield and completes radial expansion, the continuous downward pressure of the air pipe 1 will cause the lower pressure shell 45 to first contact the surface of the inner wall of the shield, and then the elastic component 445 will contact the surface of the inner wall of the shield. At this time, the elastic component 445 begins to compress, and at the same time, the positioning component 44 pre-positions the inner contour of the shield. After the positioning is completed, the air nozzle 49 starts negative pressure adsorption to firmly suck the inner wall of the shield. At this time, the lower pressure shell 45 and the elastic component 445 work together to form a two-stage flexible contact: the lower pressure shell 45 provides initial positioning constraint, and the elastic component 445 can play a flexible protection role, effectively avoiding scratches or deformation of the shield surface caused by rigid contact, thereby ensuring that the shield maintains high-precision posture stability during the subsequent double-rail welding process, providing reliable flexible support and precise positioning dual protection for the shield.

[0037] The transmission block 443 is a trapezoidal wedge structure, and the positioning slider on the transmission frame 442 is also a trapezoidal wedge structure. An inner groove 447 is provided on the inclined surface of the transmission block 443, and the inner groove 447 is slidably connected to the positioning slider. The trapezoidal wedge structure achieves force decomposition and transmission through the inclined surface cooperation, thereby efficiently converting axial thrust into radial expansion force under the drive of the cylinder.

[0038] A through hole 451 is also provided below the lower pressure shell 45, which is used for the air nozzle 49 to pass through.

[0039] like Figure 5 As shown, the protective component 43 includes a fixing block 431, which is fixedly connected to the upper bracket 41. An outer actuating block 432 is installed on the fixing block 431, and an outer slider 433 is slidably installed below the outer actuating block 432. An outer pressure arc plate 434 is installed below the outer slider 433. The outer actuating block 432 is slidably connected to the connecting shell 46, and the fixing block 431 is slidably connected to the connecting shell 46.

[0040] The outer slider 433 is wedge-shaped, and the contact surface between the outer actuating block 432 and the outer slider 433 is an inclined surface;

[0041] The outer actuating block 432 and the outer slider 433, through inclined contact, convert the axial movement of the connecting shell 46 into the radial elastic pressing action of the outer pressure arc plate 434; when the connecting shell 46 moves downward under the drive of the upper bracket 41, the outer actuating block 432 moves downward synchronously, and the outer slider 433 slides to both sides after being forceped along the inclined surface, causing the outer pressure arc plate 434 to synchronously contract radially and elastically fit the outer wall of the shield; this process is to achieve adaptive wrapping of the outer wall of the circular protective cover, thereby forming a uniform and controllable radial wrapping force on the outer wall of the shield, ensuring that the outer wall of the shield is uniformly stressed and free from local stress concentration during the double-rail welding process;

[0042] The lower pressure shell 45 is slidably connected to the upper bracket 41, and its sliding direction is perpendicular to the axis of the shielding cover.

[0043] The sliding pair that slidably connects the lower pressure shell 45 and the upper support 41 has a guide bushing and a preload spring embedded in it, which are not shown in the figure. This sliding pair plays a role in buffering and quick recovery, ensuring that the lower pressure shell 45 does not wobble or jam during axial movement. At the same time, it provides a stable axial preload after the shield is positioned, avoiding positioning offset or clamping loosening caused by instantaneous impact.

[0044] like Figure 6As shown, the inner push arc plate 444 and the outer pressure arc plate 434 are arranged concentrically and staggered. They are staggered in the circumferential direction, so that they can form complementary radial clamping and covering areas during positioning and protection. This avoids interference between the inner and outer arc plates during movement and ensures that all areas of the shielding cover are effectively constrained and flexibly supported, achieving effective clamping and all-round circumferential coverage protection, while preventing deformation or displacement caused by insufficient local rigidity of the shielding cover.

[0045] The inner push arc plate 444 and the outer pressure arc plate 434 are also provided with a flexible buffer layer (not shown in the figure).

[0046] The flexible buffer layer is made of silicone or polyurethane elastomer, and its main function is to protect the surface of the shield from damage caused by rigid contact.

[0047] In summary, this invention achieves flexible adaptive covering of the outer wall of the shielding cover and precise pushing and coordinating positioning of the inner wall through the concentric misalignment and coordinated action of the outer pressure arc plate 434 and the inner push arc plate 444. This effectively solves the technical problems of traditional rigid clamping, which easily causes surface scratches, local crushing, and uneven circumferential constraints on the shielding cover. It significantly improves the positioning accuracy and structural integrity of the shielding cover during the transfer process before double-rail welding, providing a highly repeatable and stable positioning reference for subsequent double-rail welding processes. Simultaneously, it provides excellent surface protection and structural support, offering an integrated clamping solution for double-rail welding machines that combines high-precision positioning, flexible protection, and structural self-adaptation. The positioning component 44 can pre-position the inner contour of the shielding cover. The cylinder-driven air pipe 1 pushes the sliding block 2 downwards, causing the transmission frame 442 to move downwards synchronously. At this time, the transmission frame 442 drives four sets of positioning sliders to press downwards simultaneously. The transmission block 443 is limited by the connecting plate 446, forcing the transmission block 443 to slide outward in a straight line along the radial groove of the upper bracket 41, thereby driving the inner push arc plate 444 to expand outward in a radial direction synchronously and fit against the inner circumference of the shielding cover, thus achieving adaptive radial positioning of the inner contour of the shielding cover; at the same time, the outer touch block 432 and the outer slider 433, through the inclined surface contact, convert the axial movement of the connecting shell 46 into the radial elastic pressing action of the outer pressure arc plate 434; when the connecting shell 46 moves downward under the drive of the upper bracket 41, the outer touch block 432 moves downward synchronously, and the outer slider 433 slides to both sides after being forceped along the inclined surface, driving the outer pressure arc plate 434 to shrink radially synchronously and elastically fit against the outer wall of the shielding cover; this process is to achieve adaptive wrapping of the outer wall of the circular protective cover, thereby forming a uniform and controllable radial wrapping force on the outer wall of the shielding cover, ensuring that the outer wall of the shielding cover is subjected to uniform force and no local stress concentration during the double-rail welding process.

[0048] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A positioning and clamping mechanism for a flexible shielding cover testing double-track welding machine, comprising an air pipe (1), characterized in that: A sliding block (2) is installed below the trachea (1), a spring (3) is installed between the sliding block (2) and the trachea (1), and a positioning clamping component (4) is installed below the sliding block (2). The positioning clamping component (4) includes an upper bracket (41), on which a positioning component (44) is installed. A lower pressure shell (45) is slidably installed below the upper bracket (41). A connecting shell (46) is installed on the outside of the lower pressure shell (45), and a protective component (43) is installed on the connecting shell (46).

2. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 1, wherein: The positioning component (44) includes a connecting seat (47), which is fixedly connected to the sliding block (2). An upper bracket (41) is installed below the connecting seat (47). The air pipe (1) passes through the central hole of the connecting seat (47). An air nozzle (49) is installed below the air pipe (1). A transmission frame (442) is provided inside the upper bracket (41). The transmission frame (442) is fixedly connected to the air pipe (1). Four sets of positioning sliders are evenly arranged on the outside of the transmission frame (442). A transmission block (443) is slidably installed on the positioning slider. The transmission block (443) is slidably connected to the upper bracket (41). An inner push arc plate (444) is installed at the lower end of the transmission block (443). A connecting plate (446) is installed on both sides of the transmission block (443). The connecting plate (446) is fixedly connected to the transmission frame (442). A flexible buffer layer is provided on the outside of the inner push arc plate (444).

3. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 2, wherein: The protective component (43) includes a fixing block (431), which is fixedly connected to the upper bracket (41). An outer actuating block (432) is installed on the fixing block (431). An outer slider (433) is slidably installed below the outer actuating block (432). An outer pressure arc plate (434) is installed below the outer slider (433). The outer actuating block (432) is slidably connected to the connecting shell (46). The fixing block (431) is slidably connected to the connecting shell (46). A flexible buffer layer is provided on the inner side of the outer pressure arc plate (434). The inner push arc plate (444) and the outer pressure arc plate (434) are arranged concentrically and staggeredly.

4. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 2, wherein: An elastic component (445) is provided below the air nozzle (49).

5. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 2, wherein: The transmission block (443) is in the shape of a trapezoidal wedge block, and the positioning slider on the transmission frame (442) is in the shape of a trapezoidal wedge block. An inner groove (447) is provided on the inclined surface of the transmission block (443), and the inner groove (447) is slidably connected to the positioning slider.

6. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 2, wherein: A through hole (451) is also provided below the lower pressure shell (45).

7. The shielded flexible detection dual rail welder positioning clamp mechanism of claim 3, wherein: The outer slider (433) is wedge-shaped, and the contact surface between the outer actuating block (432) and the outer slider (433) is an inclined surface.

8. The shielded flexible inspection dual rail welder positioning clamp mechanism of claim 1, wherein: The lower pressure shell (45) is slidably connected to the upper support (41).

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