PCB fixing device of SMT chip mounter

Abstract

The utility model discloses a PCB fixing device of an SMT chip mounter, and relates to the technical field of PCB chip mounting equipment, the PCB fixing device comprises a loading plate and a fixing assembly used for fixing a PCB, the fixing assembly comprises a placing plate installed at the middle position of the top surface of the loading plate, slidable moving blocks installed at the two sides of the placing plate, and clamping blocks fixedly connected to the top surfaces of the moving blocks, and the clamping blocks are fixedly connected to the top surfaces of the moving blocks. An electric telescopic rod is installed on one side of the containing plate, and the other end of the electric telescopic rod is fixedly connected with a butt joint block. According to the utility model, through the arrangement of the fixing assembly, the position and the posture of the PCB in the positioning process can be ensured to be stable, so that the positioning precision is improved, the positioning error is reduced, and meanwhile, as the central point of the PCB is unchanged, the position of the PCB can be quickly and accurately determined, the positioning time is reduced, and the production efficiency is improved. And the problems of mounting errors, element damage and the like can be reduced through accurate positioning, so that the reject ratio is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB mounting equipment, and specifically relates to a PCB fixing device of an SMT mounting machine. Background Art

[0002] With the rapid development of electronic technology, surface mount technology (SMT) has become a key technology in the field of electronic manufacturing. SMT placement machines are the core equipment on the SMT production line, and their performance directly affects the production efficiency and quality of electronic products. During the use of SMT placement machines, how to quickly and accurately locate the PCB to the center of the equipment is a key issue in improving production efficiency and reducing defective rates.

[0003] The PCB fixture of traditional SMT placement machines usually uses manual or semi-automatic methods for positioning. This method not only has a slow positioning speed, but also has low positioning accuracy, which can easily cause placement errors or damage the PCB.

[0004] The existing patent (application number: CN201921326382.1) proposes a PCB fixing device for an SMT placement machine, including a first adjusting card platform, a fixed platform, a square slide bar, a movable platform, a threaded column, a clamping spring, a second adjusting card platform and a sliding card block. A fixed platform is fixed to the right side of the upper end surface of the fixed frame plate, and the first adjusting card platform is installed on the right end surface of the fixed platform. A movable platform is installed on the left side of the upper end surface of the fixed frame plate, and the second adjusting card platform is installed on the right end surface of the movable platform. A square slide bar is installed at the connection between the movable platform and the fixed platform, and a clamping spring is sleeved on the left side of the annular side surface of the square slide bar. A sliding card block is fixed to the lower end surface of the movable platform, a threaded column is connected to the front end surface of the fixed platform, and a threaded column is connected to the front end surface of the movable platform. Although the device can quickly fix the PCB through a convenient fixing mechanism, the center position of the PCB will change during the fixing process due to the size of the PCB itself, which results in easy mounting errors or damage to the PCB.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a PCB fixing device for an SMT placement machine, which can achieve the effect of quickly fixing the PCB to the center position of the device.

[0007] In order to solve the above technical problems, the utility model provides a PCB fixing device for an SMT placement machine, comprising:

[0008] Loading board;

[0009] A fixing component for fixing the PCB;

[0010] The fixing assembly includes a placement plate installed in the middle position of the top surface of the loading plate, slidable moving blocks installed on both sides of the placement plate, a clamping block fixedly connected to the top surface of the moving block, an electric telescopic rod installed on one side of the placement plate, a docking block fixedly connected to the other end of the electric telescopic rod, a mounting column fixedly installed at the bottom of the moving block, a rotatable connecting rod installed on the outer wall of the mounting column, a rotating shaft installed at the bottom of the placement plate, and a rotatable rotating plate installed on the outer wall of the rotating shaft.

[0011] Furthermore, a mounting block is fixedly installed on one side of the placement plate, the electric telescopic rod is fixedly connected to the bottom surface of the mounting block, the other end of the electric telescopic rod is fixedly connected to the docking block, and the docking block is fixedly connected to the side wall of the moving block on one side.

[0012] Furthermore, the number of the mounting columns is two and they are respectively connected to the middle position of the bottom surface of the two moving blocks. The number of the connecting rods is also two. One end of the connecting rod is sleeved on the outer wall of the mounting column, and the other end is rotatably connected to the bottom surface of the rotating shaft near both ends.

[0013] Furthermore, four supporting legs are fixedly mounted on the top surface of the loading plate, the placement plate is integrally formed on the top surfaces of the four supporting legs, a slide rail is also fixedly mounted on the top surface of the loading plate, and the moving block is slidably located on the top surface of the slide rail.

[0014] Furthermore, a first limit block is integrally formed on the bottom surface of the moving block, the first limit block is located on the inner side of the slide rail, a limit groove is provided at the bottom of the slide rail, a second limit block is integrally formed at the bottom of the first limit block, and the second limit block is slidably located inside the limit groove.

[0015] Furthermore, a retaining block is fixedly installed on one side adjacent to the two clamping blocks, the number of the retaining blocks is not unique, and the specific material of the retaining block is rubber.

[0016] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0017] In the utility model, by setting a fixed component, the position and posture of the PCB during the positioning process can be ensured to be stable, thereby improving the positioning accuracy and reducing the positioning error. At the same time, since the center point of the PCB remains unchanged, the position of the PCB can be determined quickly and accurately, reducing the positioning time, thereby improving production efficiency. Accurate positioning can reduce problems such as mounting errors and component damage, thereby reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of one side of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the rear side of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the bottom surface of the utility model.

[0023] Numbers in the figure:

[0024] 1. Loading plate; 2. Slide rail; 3. Limiting groove; 4. Support leg; 5. Placement plate; 6. Moving block; 7. Clamping block; 8. Retaining block; 9. First limiting block; 10. Mounting block; 11. Electric telescopic rod; 12. Docking block; 13. Second limiting block; 14. Mounting column; 15. Connecting rod; 16. Turn plate; 17. Rotating shaft.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figures 1 to 4 As shown, the utility model provides a PCB fixing device for an SMT placement machine.

[0030] Specifically, by Figure 1-Figure 4 Given, including:

[0031] Loading plate 1;

[0032] A fixing component for fixing the PCB;

[0033] The fixed assembly includes a placement plate 5 installed in the middle position of the top surface of the loading plate 1, slidable moving blocks 6 installed on both sides of the placement plate 5, a clamping block 7 fixedly connected to the top surface of the moving block 6, an electric telescopic rod 11 installed on one side of the placement plate 5, a docking block 12 fixedly connected to the other end of the electric telescopic rod 11, a mounting column 14 fixedly installed at the bottom of the moving block 6, a rotatable connecting rod 15 installed on the outer wall of the mounting column 14, a rotating shaft 17 installed at the bottom of the placement plate 5, and a rotatable rotating plate 16 installed on the outer wall of the rotating shaft 17.

[0034] In the utility model, the PCB is first placed on the top surface of the placement plate 5, and then the electric telescopic rod 11 is started. After the electric telescopic rod 11 is started, the docking block 12 will be driven to move, and the docking block 12 is installed on the side wall of the moving block 6 on one side, so the moving block 6 on one side will drive the clamping block 7 to move, and the bottom end of the moving block 6 is rotatably connected to the mounting column 14 with a connecting rod 15, and the other end of the connecting rod 15 is rotatably connected to one end of the bottom surface of the rotating shaft 17, and the other end of the bottom surface of the rotating shaft 17 is also rotatably connected to the connecting rod 15, and the connecting rod 15 on the other side is connected to the other moving block 6. Therefore, the moving block 6 on one side will drive the moving block 6 on the other side to move synchronously during the movement process because of the existence of two connecting rods 15 and a rotating shaft 17. At this time, the two moving blocks 6 and the clamping block 7 will be synchronously retracted or moved away from the middle position of the device. During the process, the PCB will not be pushed, and the center point of the PCB will not be changed, thereby ensuring the quality of the patch.

[0035] Furthermore, as a specific implementation of the utility model, the utility model provides a PCB fixing device for an SMT placement machine.

[0036] Specifically, Figure 1As shown, a mounting block 10 is fixedly installed on one side of the placement plate 5, an electric telescopic rod 11 is fixedly connected to the bottom surface of the mounting block 10, and the other end of the electric telescopic rod 11 is fixedly connected to a docking block 12, which is fixedly connected to the side wall of the movable block 6 on one side.

[0037] In the utility model, in order to enable the user to drive the moving block 6 and the clamping block 7 to move after starting the electric telescopic rod 11, the other end of the electric telescopic rod 11 is fixedly connected to the docking block 12, and the docking block 12 is fixedly connected to the side wall of the moving block 6 on one side, so that the electric telescopic rod 11 can synchronously drive the moving block 6 and the clamping block 7 on one side to move during the process of driving the docking block 12 to move after starting.

[0038] Furthermore, as another specific implementation of the utility model, the utility model provides a PCB fixing device for an SMT placement machine.

[0039] Specifically, Figure 4 As shown, there are two mounting posts 14 respectively connected to the middle position of the bottom surface of the two moving blocks 6, and there are also two connecting rods 15. One end of the connecting rod 15 is sleeved on the outer wall of the mounting post 14, and the other end is rotatably connected to the bottom surface of the rotating shaft 17 near the two ends.

[0040] In the utility model, in order to make the two moving blocks 6 move synchronously, one end of the connecting rod 15 is sleeved on the outer wall of the mounting column 14, and the other end is rotatably connected to the bottom surface of the rotating shaft 17 near the two ends, so that the connecting rod 15 on one side is driven by the movement of the moving block 6 to drive the rotating plate 16 to rotate, and during the rotation of the rotating plate 16, the connecting rod 15 on the other side drives the moving block 6 and the clamping block 7 to move, so that the moving blocks 6 and the clamping blocks 7 on both sides can be synchronously retracted or moved outward, so that after the device completes the fixation of PCBs of different sizes, the center position of the PCB is always determined.

[0041] Furthermore, as another specific implementation of the utility model, the utility model provides a PCB fixing device for an SMT placement machine.

[0042] Specifically, Figure 1 As shown, four supporting legs 4 are fixedly mounted on the top surface of the loading plate 1, the placement plate 5 is integrally formed on the top surface of the four supporting legs 4, the slide rail 2 is also fixedly mounted on the top surface of the loading plate 1, and the moving block 6 is slidably located on the top surface of the slide rail 2.

[0043] In the utility model, by installing four supporting legs 4, a space is left below the placement plate 5, so that various parts can be installed below the top of the placement plate 5.

[0044] Furthermore, as another specific implementation of the utility model, the utility model provides a PCB fixing device for an SMT placement machine.

[0045] Specifically, Figure 3 As shown, a first limit block 9 is integrally formed on the bottom surface of the moving block 6, the first limit block 9 is located on the inner side of the slide rail 2, a limit groove 3 is provided at the bottom of the slide rail 2, and a second limit block 13 is integrally formed at the bottom of the first limit block 9, and the second limit block 13 is slidably located inside the limit groove 3.

[0046] In the utility model, in order to limit the movement of the moving block 6, a first limiting block 9 is provided to cooperate with the slide rail 2 so that the moving block 6 will not deflect during the movement, and a limiting groove 3 is provided to cooperate with the second limiting block 13 so that the moving block 6 will not easily leave the top surface of the slide rail 2.

[0047] Furthermore, as another specific implementation of the utility model, the utility model provides a PCB fixing device for an SMT placement machine.

[0048] Specifically, Figure 1 As shown, a retaining block 8 is fixedly installed on one side adjacent to the two clamping blocks 7. The number of the retaining blocks 8 is not unique, and the specific material of the retaining blocks 8 is rubber.

[0049] In the present invention, by providing the retaining block 8 and setting the retaining block 8 to be made of rubber, the PCB is not easily displaced after being clamped by the device, and the retaining block 8 made of rubber is not easy to cause damage to the PCB.

[0050] Working principle: When in use, first place the PCB on the top surface of the placement plate 5, and then start the electric telescopic rod 11. After the electric telescopic rod 11 is started, it will drive the docking block 12 to move, and the docking block 12 is installed on the side wall of the moving block 6 on one side, so the moving block 6 on one side will drive the clamping block 7 to move, and the bottom end of the moving block 6 is rotatably connected to the mounting column 14 with a connecting rod 15, and the other end of the connecting rod 15 is rotatably connected to one end of the bottom surface of the rotating shaft 17, and the other end of the bottom surface of the rotating shaft 17 is also rotatably connected to the connecting rod 15, and the connecting rod 15 on the other side is connected to the other moving block 6. Therefore, the moving block 6 on one side will drive the moving block 6 on the other side to move synchronously during the movement process due to the existence of two connecting rods 15 and a rotating shaft 17. At this time, the two moving blocks 6 and the clamping block 7 will synchronously retract or move away from the middle position of the device. During the process, the PCB will not be pushed, and the center point of the PCB will not be changed, thereby ensuring the quality of the patch.

[0051] By setting up fixed components, the position and posture of the PCB during the positioning process can be ensured to be stable, thereby improving positioning accuracy and reducing positioning errors. At the same time, since the center point of the PCB remains unchanged, the position of the PCB can be determined quickly and accurately, reducing positioning time and thus improving production efficiency. Accurate positioning can reduce problems such as mounting errors and component damage, thereby reducing the defective rate.

[0052] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A PCB fixing device for an SMT placement machine, comprising: Loading plate (1); A fixing component for fixing the PCB; The invention is characterized in that the fixing assembly comprises a placement plate (5) installed in the middle position of the top surface of the loading plate (1), slidable moving blocks (6) installed on both sides of the placement plate (5), a clamping block (7) fixedly connected to the top surface of the moving block (6), an electric telescopic rod (11) installed on one side of the placement plate (5), a docking block (12) fixedly connected to the other end of the electric telescopic rod (11), a mounting column (14) fixedly installed at the bottom of the moving block (6), a rotatable connecting rod (15) installed on the outer wall of the mounting column (14), a rotating shaft (17) installed at the bottom of the placement plate (5), and a rotatable rotating plate (16) installed on the outer wall of the rotating shaft (17).

2. A PCB fixing device for an SMT placement machine according to claim 1, characterized in that: A mounting block (10) is fixedly mounted on one side of the placement plate (5); the electric telescopic rod (11) is fixedly connected to the bottom surface of the mounting block (10); the other end of the electric telescopic rod (11) is fixedly connected to a docking block (12); and the docking block (12) is fixedly connected to a side wall of a movable block (6) on one side.

3. A PCB fixing device for an SMT placement machine according to claim 1, characterized in that: The number of the mounting columns (14) is two and they are respectively connected to the middle positions of the bottom surfaces of the two moving blocks (6). The number of the connecting rods (15) is also two. One end of the connecting rod (15) is sleeved on the outer wall of the mounting column (14), and the other end is rotatably connected to the bottom surface of the rotating shaft (17) near both ends.

4. A PCB fixing device for an SMT placement machine according to claim 1, characterized in that: Four supporting legs (4) are fixedly mounted on the top surface of the loading plate (1); the placement plate (5) is integrally formed on the top surface of the four supporting legs (4); a slide rail (2) is also fixedly mounted on the top surface of the loading plate (1); and the moving block (6) is slidably disposed on the top surface of the slide rail (2).

5. A PCB fixing device for an SMT placement machine according to claim 4, characterized in that: A first limit block (9) is integrally formed on the bottom surface of the moving block (6), the first limit block (9) is located on the inner side of the slide rail (2), a limit groove (3) is provided at the bottom of the slide rail (2), a second limit block (13) is integrally formed at the bottom of the first limit block (9), and the second limit block (13) is slidably located inside the limit groove (3).

6. The PCB fixing device of the SMT placement machine according to claim 1, characterized in that: A retaining block (8) is fixedly installed on one side adjacent to the two clamping blocks (7), the number of the retaining blocks (8) is not unique, and the specific material of the retaining blocks (8) is rubber.

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