SMT patch edge clamping device

Abstract

The utility model discloses an SMT patch edge clamping device which comprises a panel and a plurality of clamping shells, the clamping shells are arranged on the panel in parallel, clamping grooves are formed in the opposite faces of the clamping shells, a push shell is arranged on the panel, and a linkage mechanism driving a large gear and a lead screw to rotate is installed between the push shell and the panel. According to the utility model, the structure is simple, the push shell can directly drive the rotation of the screw rod through the linkage mechanism, so that the inward closing of the clamping shell is directly completed, the edge clamping positioning of the printed circuit board is completed, on the contrary, after the push shell moves outwards, the clamping shell can be directly opened outwards, and the disassembly of the printed circuit board is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of SMT (Surface Mount Technology) technology, specifically to an SMT edge clamping device. Background Technology

[0002] SMT (Surface Mount Technology) is an abbreviation for a series of processes performed on a PCB (Printed Circuit Board). SMT is a surface mount technology, one of the most popular technologies and processes in the electronics assembly industry. It's a circuit assembly technology that mounts leadless or short-lead surface mount components onto the surface of a printed circuit board or other substrate, and then assembles them using methods such as reflow soldering or dip soldering. Clamping devices are used when mounting components onto printed circuit boards.

[0003] Some existing SMT placement clamping devices have inconvenient distances for operation. When clamping printed circuit boards, multi-point clamping is used, but only one point can be clamped one by one, which is inconvenient for workers, time-consuming and labor-intensive, and reduces work efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an SMT chip clamping device that can directly move the clamping shell inward and open by means of lateral movement, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an SMT chip clamping device, comprising a panel and multiple clamping shells, wherein the clamping shells are arranged in parallel on the panel, and clamping grooves are provided on the opposite surfaces of the clamping shells. A sliding groove is provided laterally on the panel, and sliders are installed on the bottom surfaces of the clamping shells opposite the sliding grooves. The sliders are slidably disposed in the sliding grooves, and each slider is provided with a lead screw hole laterally. A lead screw is provided laterally in the sliding groove. One end of the lead screw is threaded to the lead screw hole, and a small gear is installed on the other end. A crown tooth is provided on one side of the small gear to mesh with it. A push shell is provided on the panel, and a linkage mechanism for driving the large gear and the lead screw to rotate is installed between the push shell and the panel.

[0006] As a preferred technical solution, the linkage mechanism includes a large gear, a rack, a shaft, and a sealed bearing. A sliding groove is provided on one side of the small gear with a clearance opening. The crown tooth is set in the clearance opening. The large gear is installed on the outer surface of the crown tooth. The rack is installed on the top surface inside the pusher housing. The diameter of the large gear is the same as the diameter of the crown tooth. The large gear and the rack are meshed and connected. The sealed bearing is embedded in the inner surface of the clearance opening. One end of the shaft is installed in the inner ring of the sealed bearing, and the other end is installed in the center hole of the large gear and the crown tooth.

[0007] As a preferred technical solution, limit strips are installed on both sides of the panel and the inner side of the limit strips are provided with limit grooves. Limit strips are installed on both sides of the push shell and the limit strips are slidably disposed in the limit grooves.

[0008] As a preferred technical solution, multiple friction strips are formed on the top surface of the push shell.

[0009] As a preferred technical solution, multiple cushioning pads are installed on the bottom surface of the panel.

[0010] As a preferred technical solution, a first ball bearing is embedded in one end face of the slide groove, one end of the lead screw is installed in the inner ring of the first ball bearing, a second ball bearing is installed near the pinion of the lead screw, and the outer ring of the second ball bearing is installed on the inner wall of the slide groove.

[0011] The beneficial effects of this utility model are: This utility model has a simple structure. After the printed circuit board is placed between the clamping shells, it can directly push the push shell outward. The push shell can directly drive the lead screw to rotate through the linkage mechanism, thereby directly completing the clamping shell to move inward and completing the clamping and positioning of the printed circuit board. Moreover, the horizontal pushing method replaces the traditional method of rotating the lead screw, and the large gear drives the small gear to drive the lead screw to rotate more efficiently, thereby efficiently completing the clamping of the printed circuit board. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a bottom view of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model after removing the pusher shell;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model after the panel is removed.

[0017] The components are as follows: 1. Panel; 2. Slide groove; 3. Slider; 4. Clamping shell; 5. Lead screw; 6. Push shell; 7. Limiting strip; 8. Limiting groove; 9. Clearance opening; 10. Crown tooth; 11. Large gear; 12. Small gear; 13. Second ball bearing; 14. Clamping groove; 15. Limiting strip; 16. Rack. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an SMT chip clamping device of the present invention includes a panel 1 and multiple clamping shells 4. The clamping shells 4 are arranged in parallel on the panel 1. Each clamping shell 4 has a clamping groove 14 on its opposite surface. The panel 1 has a horizontal sliding groove 2. Each clamping shell 4 has a slider 3 installed on its bottom surface opposite to the sliding groove 2. The sliders 3 are slidably disposed in the sliding groove 2. Each slider 3 has a horizontal lead screw hole. A lead screw 5 is horizontally disposed in the sliding groove 2. One end of the lead screw 5 is threaded to the lead screw hole, and the other end is equipped with a small gear 12. A crown tooth 10 that meshes with the small gear 12 is provided on one side. A push shell 6 is provided on the panel 1. A linkage mechanism that drives the large gear 11 and the lead screw 5 to rotate is installed between the push shell 6 and the panel 1.

[0022] The lead screw is positioned with the middle of the two clamping shells as the dividing line. The screw threads on both sides of the dividing line are arranged in opposite directions, so that the slider and the clamping shell can be moved inward and outward in a synchronized manner.

[0023] In this embodiment, the linkage mechanism includes a large gear 11, a rack 16, a shaft, and a sealed bearing. The slide groove 2 is located on one side of the small gear 12 and has a clearance opening 9. The crown gear 10 is disposed in the clearance opening 9. The large gear is installed on the outer surface of the crown gear 10. The rack 16 is installed on the top surface inside the push shell 6. The diameter of the large gear 11 is the same as the diameter of the crown gear 10. The large gear 11 and the rack 16 are meshed and connected. The sealed bearing is embedded in the inner side of the clearance opening 9. One end of the shaft is installed in the inner ring of the sealed bearing, and the other end is installed in the center hole of the large gear 11 and the crown gear 10.

[0024] In this embodiment, the panel 1 is equipped with limit strips 15 on both sides of the push shell 6. The inner side of the limit strips 15 is provided with limit grooves 8. The limit strips 15 are slidably disposed in the limit grooves 8. The limit strips and limit grooves can limit the push shell, so that the push shell can only move laterally along the limit grooves, which increases the stability during the movement and avoids misalignment between the rack and the large gear.

[0025] In this embodiment, multiple friction strips protrude from the top surface of the push shell 6. When the hand contacts the top surface of the push shell, the friction strips increase the friction with the hand, thereby pushing the push shell more easily.

[0026] In this embodiment, multiple buffer pads are installed on the bottom surface of panel 1. The buffer pads can suspend the bottom of the panel, preventing the large gear from contacting any flat surface.

[0027] In this embodiment, a first ball bearing is embedded in one end face of the slide groove 2, one end of the lead screw 5 is installed in the inner ring of the first ball bearing, a second ball bearing 13 is installed near the pinion 12 on the lead screw 5, and the outer ring of the second ball bearing 13 is installed on the inner wall of the slide groove 2.

[0028] In use, the printed circuit board can be placed directly on the panel. At this time, the palm can be placed directly on the top surface of the push shell and pushed outward. The sealing strip increases the friction between the palm and the push shell. The movement of the push shell drives the rack, the movement of the rack drives the rotation of the large gear, the rotation of the large gear drives the crown gear, and the crown gear drives the small gear simultaneously. The large gear drives the small gear, which can drive the rotation of the lead screw more efficiently. The rotation of the lead screw drives the slider, which moves inward along the slide groove until the two sides of the printed circuit board are inserted into the clamping groove to complete the clamping operation of the printed circuit board. The top surface of the inner cavity of the clamping groove can limit the top surface of the printed circuit board. While clamping the two sides, it can also limit the upper and lower surfaces of the printed circuit board to ensure the stability of the clamping and increase efficiency.

[0029] After the pusher shell is pushed in the opposite direction, the lead screw can rotate in the opposite direction, so that the clamping shell can open outward in sync to complete the disassembly of the printed circuit board; in this device, the downward rotation method is replaced by the horizontal pushing method, which makes it more convenient.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. An SMT (Surface Mount Technology) chip clamping device, characterized in that: The device includes a panel (1) and multiple clamping shells (4). The clamping shells (4) are arranged in parallel on the panel (1). Each clamping shell (4) has a clamping groove (14) on its opposite surface. The panel (1) has a horizontal sliding groove (2). Each clamping shell (4) has a slider (3) installed on its bottom surface opposite the sliding groove (2). Each slider (3) is slidably arranged in the sliding groove (2). Each slider (3) has a horizontal lead screw hole. A lead screw (5) is horizontally arranged in the sliding groove (2). One end of the lead screw (5) is threaded to the lead screw hole, and the other end is equipped with a small gear (12). One side of the small gear (12) is provided with a crown tooth (10) that meshes with it. A push shell (6) is provided on the panel (1). A linkage mechanism that drives the large gear (11) and the lead screw (5) to rotate is installed between the push shell (6) and the panel (1).

2. The SMT placement edge clamping device according to claim 1, characterized in that: The linkage mechanism includes a large gear (11), a rack (16), a shaft and a sealed bearing. The slide groove (2) is located on one side of the small gear (12) and has a clearance opening (9). The crown tooth (10) is set in the clearance opening (9). The large gear is installed on the outer side of the crown tooth (10). The rack (16) is installed on the top surface inside the push shell (6). The diameter of the large gear (11) is the same as the diameter of the crown tooth (10). The large gear (11) and the rack (16) are meshed and connected. The sealed bearing is embedded in the inner side of the clearance opening (9), one end of the shaft is installed in the inner ring of the sealed bearing, and the other end is installed in the center hole of the large gear (11) and the crown gear (10).

3. The SMT placement edge clamping device according to claim 1, characterized in that: A first ball bearing is embedded in one end face of the slide groove (2), and one end of the lead screw (5) is installed in the inner ring of the first ball bearing. A second ball bearing (13) is installed near the pinion (12) of the lead screw (5), and the outer ring of the second ball bearing (13) is installed on the inner wall of the slide groove (2).

4. The SMT placement edge clamping device according to claim 1, characterized in that: The panel (1) is installed with limit strips (15) on both sides of the push shell (6). The inner side of the limit strips (15) is provided with limit grooves (8). The limit strips (15) are installed on both sides of the push shell (6) and are slidably set in the limit grooves (8).

5. The SMT placement edge clamping device according to claim 1, characterized in that: Multiple friction strips are formed on the top surface of the push shell (6).

6. The SMT placement edge clamping device according to claim 1, characterized in that: Multiple cushioning pads are installed on the bottom surface of panel (1).

Images