Auxiliary surface mounting device for circuit board

Abstract

The utility model discloses an auxiliary chip mounting device for a circuit board, which relates to the technical field of circuit board processing, and is characterized in that the auxiliary chip mounting device comprises a fixed bottom plate, the fixed bottom plate is provided with a plurality of limiting pieces I which slide towards the center of the fixed bottom plate, and positioning spaces I are formed among the limiting pieces I; a driving disc is arranged on the face, away from the first limiting pieces, of the fixed bottom plate and is in transmission connection with the first limiting pieces, second limiting pieces are arranged on the faces, away from the fixed bottom plate, of the first limiting pieces, and a plurality of mounting grooves are distributed in the first limiting pieces in the length direction of the first limiting pieces in an array mode. The limiting pieces II are detachably connected to the mounting grooves, and positioning spaces II are formed among the limiting pieces II. According to the utility model, through the arrangement of the structure, the steel mesh can be limited and fixed while the circuit board is fixed, so that the operation of brushing soldering paste and scraping tin can be carried out stably, errors are prevented, and the surface mounting yield is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, and more specifically, to a circuit board auxiliary patch device. Background Art

[0002] Circuit board, also known as printed circuit board, PCB for short, is an important electronic component. Circuit board is not only the support of electronic components, but also the carrier of electrical connection of electronic components. Circuit board can be divided into three major categories according to the number of layers: single-sided board, double-sided board, and multi-layer circuit board. Circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] In the prior art, when manually mounting chips on a circuit board, the operator must first apply solder paste and scrape tin. During this process, the operator needs to manually align the mesh on the steel mesh with the pads on the circuit board. If the operator's hands are loose, mistakes can easily occur, causing the solder paste to be located in other locations on the circuit board, contaminating the circuit board. The circuit board cannot be effectively fixed during mounting, and components can easily be mounted crookedly, resulting in a waste of materials.

[0004] Therefore, it is necessary to provide a circuit board auxiliary patch device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a circuit board auxiliary patch device to solve the problems raised in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A circuit board auxiliary patch device comprises a fixed bottom plate, the fixed bottom plate is provided with a plurality of limiting members sliding toward the center thereof, a positioning space is formed between the plurality of limiting members, a driving disk is provided on a surface of the fixed bottom plate away from the plurality of limiting members, the driving disk is in transmission connection with the plurality of limiting members,

[0008] A limiting member 2 is provided on a side of the limiting member 1 away from the fixed base plate. The limiting member 1 has a plurality of mounting grooves arranged in an array along its length direction. The limiting member 2 is detachably connected to a plurality of the mounting grooves, and a positioning space 2 is formed between the plurality of the limiting members 2.

[0009] The technical solution of the utility model is further configured as follows: one end of the limiting member facing the center of the fixed bottom plate is slidably connected with a pressing block, and the sliding direction of the pressing block is arranged toward the top surface of the fixed bottom plate.

[0010] The technical solution of the utility model is further configured as follows: a resistance block is slidably connected to the limiting member 1 for preventing the pressing block from sliding downward, the resistance block extends from the inside of the limiting member 1 and resists the pressing block, and a side of the resistance block resisting the pressing block is an inclined surface.

[0011] The technical solution of the utility model is further configured as follows: a receiving groove is opened on the limiting member, the resistance block is slidably connected in the receiving groove, a plurality of elastic members are arranged in the receiving groove, one end of the elastic member is fixedly connected to the inner wall of the receiving groove, and the other end of the elastic member is fixedly connected to the resistance block.

[0012] The technical solution of the utility model is further configured as follows: a slide groove communicating with the accommodating groove is provided on the first limiting member, and a T-shaped block located in the slide groove is fixedly connected to the pressing block.

[0013] The technical solution of the utility model is further configured as follows: a positioning block located in the installation groove is fixedly connected to the second limiting member, and the positioning blocks are located at both ends of the second limiting member in the length direction.

[0014] The technical solution of the utility model is further configured as follows: the fixed bottom plate is provided with a plurality of sliding grooves passing through it, a sliding rod passing through the sliding groove is fixedly connected to one of the limiting members, a connecting rod is rotatably connected to the sliding rod, and the other end of the connecting rod is rotatably connected to the bottom surface of the active disk.

[0015] The technical solution of the utility model is further configured as follows: the cross-section of the connecting rod is L-shaped.

[0016] The technical solution of the utility model is further configured as follows: a driver is provided at a side of the active disk away from the fixed bottom plate, and the center of the bottom surface of the active disk is fixedly connected to the driving shaft of the driver.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] The circuit board is clamped by limiting piece 1 located on the fixed bottom plate, and the pressure block on limiting piece 1 can also limit the top edge of the circuit board by its gravity, further ensuring that the circuit board is effectively clamped to prevent it from displacement. Limiting piece 2 located on limiting piece 1 is used to clamp and limit the steel mesh, so as to facilitate the alignment of the steel mesh with the pads on the circuit board to avoid mistakes in brushing solder paste and scraping tin, thereby ensuring the yield rate of the patch. The active disk makes it easy to control limiting piece 1 and limiting piece 2, simplifying the operation during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1The structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 4 It is an exploded view of the limiting member 1 and the limiting member 2 in the utility model.

[0023] In the figure: 1, fixed base plate; 2, limiting member 1; 3, active disk; 4, limiting member 2; 5, mounting groove; 6, pressure block; 7, resistance block; 8, accommodating groove; 9, elastic member; 10, slide groove; 11, T-shaped block; 12, positioning block; 13, sliding groove; 14, sliding rod; 15, connecting rod; 16, driver. DETAILED DESCRIPTION

[0024] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] Example:

[0026] like Figures 1 to 4 As shown, the utility model provides a circuit board auxiliary patch device, including a fixed base plate 1, a plurality of limiting members 2 sliding toward the center thereof are provided on the fixed base plate 1, a positioning space 1 is formed between the plurality of limiting members 2, an active disk 3 is provided on a side of the fixed base plate 1 away from the plurality of limiting members 2, the active disk 3 is transmission-connected with the plurality of limiting members 2, a limiting member 2 4 is provided on a side of the limiting member 2 away from the fixed base plate 1, a plurality of mounting grooves 5 are arrayed along the length direction of the limiting member 2, a positioning block 12 located in the mounting groove 5 is fixedly connected to the limiting member 2 4, the positioning block 12 is located at both ends of the length direction of the limiting member 2 4, and a positioning space 2 is formed between the plurality of limiting members 2 4.

[0027] By rotating the active disk 3, all the limiting members 2 on the fixed base plate 1 can slide toward the center of the fixed base plate 1. At this time, a positioning space is formed between all the limiting members 2, so that the circuit board placed on the fixed base plate 1 can be clamped, thereby achieving a fixing effect on the circuit board and preventing it from being displaced when brushing solder paste and scraping tin. In addition, the limiting member 2 4 on the limiting member 2 can achieve a fixing effect on the steel mesh according to the size of the steel mesh, making it difficult for the fixed steel mesh and the circuit board to have relative displacement, thereby ensuring the yield rate of the patch. To adjust the position of the limiting member 2 4, it is only necessary to detach the positioning block 12 on the limiting member 2 4 from the mounting groove 5 on the limiting member 2 and add it to the mounting groove 5 at other positions, which is relatively convenient to operate.

[0028] like Figures 1 to 4 As shown, a receiving groove 8 is provided at one end of the limiting member 2 facing the center of the fixed base plate 1, and a resistance block 7 extending from the inside of the receiving groove 8 is slidably connected therein. A plurality of elastic members 9 are provided in the receiving groove 8, wherein the elastic member 9 is a spring, one end of the elastic member 9 is fixedly connected to the inner wall of the receiving groove 8, and the other end of the elastic member 9 is fixedly connected to the resistance block 7. A slide groove 10 connected to the receiving groove 8 is provided on the limiting member 2, and the direction of the slide groove 10 is arranged toward the top surface of the fixed base plate 1, a pressing block 6 is slidably connected to the limiting member 2, and a T-shaped block 11 located in the slide groove 10 is fixedly connected to the pressing block 6, and one end of the resistance block 7 extending from the inside of the limiting member 2 abuts against the pressing block 6, and the abutting side of the two is an inclined surface.

[0029] When all the limiting members 2 on the fixed base plate 1 slide toward the center of the fixed base plate 1, the abutment block 7 extending from the accommodating groove 8 will first contact the edge of the circuit board, and then as the limiting member 2 continues to slide, the abutment block 7 in contact with the circuit board will squeeze the elastic member 9 in the accommodating groove 8 and gradually enter the accommodating groove 8 until the edge of the limiting member 2 contacts the edge of the circuit board. At the same time, because the abutment block 7 gradually enters the accommodating groove 8, the resistance to the downward sliding of the pressing block 6 gradually becomes smaller, and the pressing block 6 will slide downward under the influence of its gravity and contact the top surface of the circuit board, pressing the edge of the circuit board tightly, thereby completing the restriction on the edge of the circuit board and the top surface of the edge, ensuring that the circuit board is firmly clamped.

[0030] like Figures 1 to 4 As shown, the cross section of the active disk 3 is rectangular, and a driver 16 is provided on one side of the active disk 3 away from the fixed base plate 1. The driver 16 here adopts a motor. The center of the bottom surface of the active disk 3 is fixedly connected to the driving shaft of the driver 16. The fixed base plate 1 is provided with a plurality of sliding grooves 13 passing through it. A sliding rod 14 passing through the sliding groove 13 is fixedly connected to the limiting member 2. A connecting rod 15 is rotatably connected to the sliding rod 14. The other end of the connecting rod 15 is rotatably connected to the bottom surface of the active disk 3. The cross section of the connecting rod 15 is L-shaped.

[0031] During operation, the driving shaft of the driver 16 rotates, driving the active disk 3 to rotate. The rotating active disk 3 realizes the pulling effect on the sliding rod 14 through the connecting rod 15, and then the sliding rod 14 and the limiting member 2 fixedly connected to the sliding rod 14 slide along the sliding groove 13 toward the center of the fixed base plate 1, so that all the limiting members 2 can clamp the circuit board to complete the fixing operation of the circuit board.

[0032] like Figures 1 to 4 As shown, when it is necessary to brush solder paste on the circuit board, first start the driver 16 and let the driving shaft of the driver 16 drive the active disk 3 to rotate. The rotating active disk 3 allows the sliding rod 14 to slide along the sliding groove 13 toward the center of the fixed bottom plate 1 through the connecting rod 15. At this time, the limiting member 1 2 and the limiting member 2 4 also slide accordingly. During the sliding process, the resistance block 7 on the limiting member 1 2 will preferentially contact the edge of the circuit board and squeeze the elastic member 9, causing the resistance block 7 to enter the receiving groove 8. At this time, the pressing block 6 that resists the resistance block 7 will slide downward along the inclined surface to press the top surface of the edge of the circuit board, and the limiting member 1 2 will also limit the edge of the circuit board to complete the clamping and positioning of the circuit board. Then, according to the size of the steel mesh, the position of the limiting member 2 4 on the limiting member 1 2 is adjusted, and then the steel mesh is restricted to facilitate the operation of brushing solder paste and scraping tin.

[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A circuit board auxiliary patch device, comprising a fixed base plate (1), characterized in that: The fixed base plate (1) is provided with a plurality of limiting members (2) sliding toward the center thereof, a positioning space (1) is formed between the plurality of limiting members (2), a driving disk (3) is provided on a surface of the fixed base plate (1) away from the plurality of limiting members (2), the driving disk (3) is transmission-connected with the plurality of limiting members (2), A limiting member 2 (4) is provided on a side of the limiting member 1 (2) away from the fixed base plate (1); the limiting member 1 (2) has a plurality of mounting grooves (5) arranged in an array along its length direction; the limiting member 2 (4) is detachably connected to a plurality of the mounting grooves (5); and a positioning space 2 is formed between the plurality of limiting members 2 (4).

2. A circuit board auxiliary patch device according to claim 1, characterized in that: One end of the limiting member (2) facing the center of the fixed base plate (1) is slidably connected to a pressing block (6), and the sliding direction of the pressing block (6) is arranged towards the top surface of the fixed base plate (1).

3. A circuit board auxiliary patch device according to claim 2, characterized in that: The limiting member (2) is slidably connected with a resistance block (7) for preventing the pressing block (6) from sliding downwards. The resistance block (7) extends from the inside of the limiting member (2) and resists the pressing block (6). The side of the resistance block (7) resisting the pressing block (6) is an inclined surface.

4. A circuit board auxiliary patch device according to claim 3, characterized in that: The limiting member (2) is provided with a receiving groove (8), the abutment block (7) is slidably connected in the receiving groove (8), a plurality of elastic members (9) are provided in the receiving groove (8), one end of the elastic member (9) is fixedly connected to the inner wall of the receiving groove (8), and the other end of the elastic member (9) is fixedly connected to the abutment block (7).

5. A circuit board auxiliary patch device according to claim 4, characterized in that: The limiting member (2) is provided with a slide groove (10) which is in communication with the receiving groove (8), and the pressing block (6) is fixedly connected with a T-shaped block (11) located in the slide groove (10).

6. A circuit board auxiliary patch device according to claim 1, characterized in that: The second limiting member (4) is fixedly connected with a positioning block (12) located in the installation groove (5), and the positioning block (12) is located at both ends of the second limiting member (4) in the length direction.

7. A circuit board auxiliary patch device according to claim 1, characterized in that: The fixed bottom plate (1) is provided with a plurality of sliding grooves (13) passing through the fixed bottom plate (1); a sliding rod (14) passing through the sliding groove (13) is fixedly connected to the limiting member (2); a connecting rod (15) is rotatably connected to the sliding rod (14); the other end of the connecting rod (15) is rotatably connected to the bottom surface of the active disk (3).

8. A circuit board auxiliary patch device according to claim 7, characterized in that: The cross-sectional shape of the connecting rod (15) is L-shaped.

9. A circuit board auxiliary patch device according to claim 1, characterized in that: A driver (16) is provided on a side of the active disk (3) away from the fixed base plate (1), and the center of the bottom surface of the active disk (3) is fixedly connected to the driving shaft of the driver (16).

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