SMT (Surface Mount Technology) chip mounting jig

Abstract

The utility model relates to the field of SMT mounting, in particular to an SMT mounting jig, which comprises a base and a chassis, a shaft rod is rotatably mounted on the upper end face of the base through a bearing, the chassis is mounted on the upper end face of the shaft rod, a limiting ring is mounted on the upper end face of the chassis, and a plurality of first chucks are mounted at the inner bottom of the limiting ring along the circumferential direction of the limiting ring. A fixing cavity is formed in the upper end face of the base, an adjusting motor is installed at the top in the fixing cavity, a driving gear is installed at the output end of the adjusting motor and is of an incomplete gear structure, and a driven gear is rotationally installed on the outer side wall of the driving gear in a meshed mode and installed on the outer side wall of the shaft rod; a driving gear and driven gear structure is adopted, so that the limiting shell can be conveniently replaced, people do not need to walk to replace the limiting shell, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of SMT (Surface Mount Technology) assembly, specifically to an SMT assembly fixture. Background Technology

[0002] SMT (Surface Mount Technology) is an abbreviation for a series of processes performed on a PCB (Printed Circuit Board). SMT stands for Surface Mount Technology, one of the most popular technologies and processes in the electronics assembly industry. Surface mount technology, also known as surface mount technology, is 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 through reflow soldering or dip soldering. Typically, the electronic products we use are designed according to circuit diagrams using PCBs and various capacitors, resistors, and other electronic components. Therefore, various electrical appliances require different SMT processing techniques.

[0003] A Chinese patent discloses an SMT placement fixture (authorization announcement number CN 220139843 U). This patented technology can solve the problem that in the process of SMT placement, since each SMT piece has a different shape, different sizes of fixtures are needed to clamp them, but manufacturing multiple fixtures will increase production costs.

[0004] When processing SMT components, the existing fixtures cannot be changed according to the specifications of the SMT components, and the change requires workers to walk around, resulting in cumbersome operation and low work efficiency. Utility Model Content

[0005] To solve the above technical problems, this utility model provides an SMT placement fixture, including a base and a chassis. A shaft is rotatably mounted on the upper end face of the base via a bearing. The chassis is mounted on the upper end face of the shaft. A limit ring is mounted on the upper end face of the chassis. Multiple first clamps are mounted on the bottom of the limit ring along its circumferential direction. The upper end face of the first clamps is engaged with a limit shell. A fixing cavity is mounted on the upper end face of the base. An adjusting motor is mounted on the top of the fixing cavity. A drive gear is mounted on the output end of the adjusting motor. The drive gear is an incomplete gear structure. A driven gear is rotatably mounted on the outer wall of the drive gear. The driven gear is mounted on the outer wall of the shaft. A button is mounted on the front end face of the fixing cavity. The button is electrically connected to the adjusting motor. Multiple through slots are opened on the bottom of the chassis along its circumferential direction. A push rod is mounted on the bottom of the through slot by sliding fit. A movable plate is mounted on the upper end face of the push rod. The first clamp is mounted on the upper end face of the movable plate.

[0006] Preferably, the upper surface of the chassis is provided with a cross groove, and a first slider is installed in the cross groove by means of sliding fit. A lighting lamp is rotatably installed on the upper surface of the first slider through a bearing.

[0007] Preferably, spring rods are symmetrically installed on the upper surface of the movable plate, and the other end of the spring rods is installed at the top of the through groove.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] 1. This utility model adopts a drive gear and driven gear structure, which facilitates the replacement of the limiting shell without the need for personnel to walk around to replace it, thus reducing labor intensity.

[0010] 2. The present invention adopts a push rod and movable plate structure, which makes it easy to push the limiting shell upward by pushing the push rod, thus avoiding the phenomenon of the limiting shell and the limiting ring getting stuck, which would make it difficult to remove the limiting shell. Attached Figure Description

[0011] Figure 1 This is a front view of an SMT mounting fixture structure provided in an embodiment of this application;

[0012] Figure 2 This is a top view of the structure of an SMT mounting fixture provided in an embodiment of this application;

[0013] Figure 3 This is a cross-sectional front view of an SMT mounting fixture provided in an embodiment of this application;

[0014] Figure 4 This is a top cross-sectional view of an SMT mounting fixture provided in an embodiment of this application;

[0015] Figure 5 This application provides an SMT (Surface Mount Technology) mounting fixture. Figure 3 A magnified view of a portion of region A in the middle;

[0016] In the diagram: 1. Base; 2. Chassis; 11. Shaft; 12. Limiting ring; 13. First locking head; 14. Limiting shell; 15. Adjusting motor; 16. Driving gear; 17. Driven gear; 18. Button; 19. Lighting lamp; 21. Cross groove; 22. Push rod; 23. Movable plate; 24. Spring rod. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0018] Please see Figures 1-5 This embodiment provides an SMT placement fixture, including a base 1 and a chassis 2. A shaft 11 is rotatably mounted on the upper surface of the base 1 via a bearing. The chassis 2 is mounted on the upper surface of the shaft 11. A limiting ring 12 is mounted on the upper surface of the chassis 2. Multiple first clamps 13 are mounted on the bottom of the limiting ring 12 along its circumferential direction. The upper surfaces of the first clamps 13 are engaged with limiting shells 14. A fixing cavity is mounted on the upper surface of the base 1. An adjusting motor 15 is mounted on the top of the fixing cavity. The output end of the adjusting motor 15 is equipped with... There is a driving gear 16, which is an incomplete gear structure. A driven gear 17 is meshed and rotatably mounted on the outer wall of the driving gear 16. The driven gear 17 is mounted on the outer wall of the shaft 11. A button 18 is mounted on the front end face of the fixed cavity. The button 18 is electrically connected to the adjusting motor 15. Multiple through slots are opened along the circumferential direction in the bottom of the chassis 2. A push rod 22 is mounted in the bottom of the through slots by sliding fit. A movable plate 23 is mounted on the upper end face of the push rod 22. A movable plate 23 is mounted on the upper end face of the movable plate 23. The device has a first locking head 13 and spring rods 24 symmetrically installed on the upper surface of the movable plate 23. The other end of the spring rods 24 is installed at the top of the through slot. During operation, the grooves inside the limiting shell 14 have different shapes, which facilitates the processing of SMT components of different specifications. The SMT components are placed in the limiting shell 14 for processing. Pressing the button 18 starts the motor 15, which drives the drive gear 16 to rotate. The drive gear 16 drives the driven gear 17 to rotate intermittently, causing the chassis 2 to rotate 90 degrees, which facilitates the replacement of the limiting shell 14 without the need for personnel to walk around, reducing labor intensity. The first locking head 13 plays a limiting and fixing role for the limiting shell 14. During long-term operation, the limiting shell 14 is prone to jamming with the limiting ring 12, making it difficult to remove the limiting shell 14. The movable plate 23 can be moved upward by pushing the push rod 22, which moves the limiting shell 14 upward, making it easy to remove the limiting shell 14 for replacement. The spring rod 24 plays a resetting role for the first locking head 13.

[0019] The upper surface of the chassis 2 is provided with a cross groove 21. A first slider is installed in the cross groove 21 by means of sliding fit. An illumination lamp 19 is rotatably installed on the upper surface of the first slider through a bearing. During operation, the illumination lamp 19 illuminates the limiting shell 14 to ensure processing efficiency in dim environments. At the same time, the cross groove drives the illumination lamp 19 to slide closer to the corresponding processing limiting shell 14, further ensuring its illumination effect.

[0020] In actual operation, the grooves inside the limiting shell 14 have different shapes, which facilitates the processing of SMT components of different specifications. The SMT components are placed inside the limiting shell 14 for processing. Pressing button 18 starts the motor 15, which drives the drive gear 16 to rotate. The drive gear 16 drives the driven gear 17 to rotate intermittently, causing the chassis 2 to rotate 90 degrees. This facilitates the replacement of the limiting shell 14 without the need for personnel to walk around, reducing labor intensity. The first clamp 13 plays a limiting and fixing role for the limiting shell 14.

[0021] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An SMT placement fixture, comprising a base (1) and a chassis (2), characterized in that, A shaft (11) is rotatably mounted on the upper end face of the base (1) via a bearing. A chassis (2) is mounted on the upper end face of the shaft (11). A limit ring (12) is mounted on the upper end face of the chassis (2). Multiple first clamps (13) are mounted on the bottom of the limit ring (12) along its circumferential direction. The upper end face of the first clamps (13) is engaged with a limit shell (14). A fixing cavity is mounted on the upper end face of the base (1). An adjusting motor (15) is mounted on the top of the fixing cavity. An output end of the adjusting motor (15) is equipped with a... The driving gear (16) is an incomplete gear structure. The driven gear (17) is meshed and rotated on the outer wall of the driving gear (16). The driven gear (17) is installed on the outer wall of the shaft (11). Multiple through slots are opened in the bottom of the chassis (2) along its circumferential direction. A push rod (22) is installed in the bottom of the through slot by sliding fit. A movable plate (23) is installed on the upper end face of the push rod (22). A first chuck (13) is installed on the upper end face of the movable plate (23).

2. The SMT mounting fixture according to claim 1, characterized in that... A button (18) is installed on the front end face of the fixed cavity, and the button (18) is electrically connected to the adjusting motor (15).

3. The SMT mounting fixture according to claim 1, characterized in that, A lighting lamp (19) is arranged on the upper surface of the chassis (2).

4. The SMT mounting fixture according to claim 1, characterized in that, The upper surface of the chassis (2) is provided with a cross groove (21), and a first slider is installed in the cross groove (21) by means of sliding fit. A lighting lamp (19) is installed on the upper surface of the first slider by means of a bearing.

5. The SMT mounting fixture according to claim 1, characterized in that, Spring rods (24) are symmetrically installed on the upper surface of the movable plate (23), and the other end of the spring rods (24) is installed at the top of the through groove.

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