PCB automatic patching jig

Abstract

The application relates to the technical field of tool jigs, and discloses a PCB automatic patch jig, which comprises a main body, a cover plate arranged at the top of the main body, a fixing mechanism arranged in the interior of the main body, a blocking mechanism arranged in the interior of the fixing mechanism, and the like. When the PCB is placed on the top of the main body, the possibility of movement of the PCB in subsequent work is reduced due to the clamping of the internal parts of the fixing mechanism. When the internal parts of the fixing mechanism clamp the PCB, the movement of the internal parts of the blocking mechanism reduces the damage of the assembly to the PCB. The four elliptical plates are circumferentially arranged on the main body, so that the four side edges of the PCB are subjected to an inward pushing force, the displacement of the PCB in the main body is reduced, the setting of the elliptical plates reduces the movement of the PCB in the main body, the stability of the patching process is improved, and the accuracy during patching is improved.

Description

Technical Field

[0001] This invention relates to the field of tooling and fixture technology, specifically to an automatic PCB board mounting fixture. Background Technology

[0002] With the development of the electronics manufacturing industry, PCB fixtures are increasingly used in the production process of surface mount technology. In order to improve production efficiency and product quality, some companies usually use PCB fixtures to assist in production. When mounting components onto a PCB, the PCB is typically placed in a fixture and then mounted using an external automated placement machine. Most fixtures have a recess inside that allows the PCB to be inserted, and are secured by a cover plate with a magnet on top. To facilitate removal of the PCB after mounting, the recess in the fixture is usually larger than the PCB's surface area. This can easily cause misalignment during subsequent mounting, affecting the stability and accuracy of the mounting process within the fixture. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic PCB board mounting fixture to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an automatic PCB board mounting fixture, comprising a main body, a cover plate on the top of the main body, and further comprising: The fixing mechanism is installed inside the main body. When the PCB board is placed on top of the main body, the clamping of the internal parts of the fixing mechanism reduces the possibility of movement of the PCB board in subsequent operations. The blocking mechanism is installed inside the fixing mechanism. When the components inside the fixing mechanism clamp the PCB board, the movement of the components inside the blocking mechanism will reduce the damage to the PCB board caused by the components.

[0005] Furthermore, the main body includes: Locking components are located inside the main body. Unlock components are located to the left and right of the locked components.

[0006] Furthermore, the fixing mechanism includes a push plate mounted on the bottom of the locking assembly, and the fixing mechanism also includes: The fixing components are located inside the main body; The leveling component is located to the left of the fixed component.

[0007] Furthermore, the blocking mechanism includes: The tilting component is located inside the fixed component; Auxiliary components are placed to the right of the fixed components.

[0008] Furthermore, the locking component includes an actuating block that is slidably connected inside the main body, and four limiting blocks are slidably connected to the side wall of the actuating block; the four limiting blocks are arranged in pairs and symmetrically distributed around the center line of the actuating block. A spring is fixedly connected to the back of the limiting block.

[0009] Furthermore, the unlocking components include four unlocking plates that slide inside the main body; The four unlocking plates are arranged in pairs, symmetrically distributed around the starting block. One set of unlocking plates is fixedly connected to a fixing plate at the end furthest from the starting block. Two springs are fixedly connected to the left side of the unlocking plate, and the two springs are symmetrically distributed with the unlocking plate as the center. The unlocking plate has a locking slot on the side near the starter block.

[0010] Furthermore, the fixing assembly includes four transmission plates rotatably connected to the side wall of the push plate, the four transmission plates being circumferentially distributed around the starting block; A push block is provided on the right side of the transmission plate, and the push block is slidably connected to the inner wall of the main body; An elliptical plate is positioned above the push block, and the elliptical plate is slidably connected to the top of the main body.

[0011] Furthermore, the leveling component includes four movable slots formed on the push plate, the four movable slots being distributed circumferentially around the push plate; A sliding block is provided at the top of the movable groove, and the sliding block is slidably connected inside the main body; several rubber strips are fixedly connected to the top of the sliding block; An S-shaped plate is rotatably connected to the bottom of the sliding block; The S-shaped plate has its side wall near the starting block in close contact with the side wall of the movable groove, and the bottom of the S-shaped plate is fixedly connected to the bottom inner wall of the main body.

[0012] Furthermore, the tilting assembly includes an inverted V-plate fixedly connected to the inner wall of the elliptical plate, and a baffle plate is provided on the top of the inverted V-plate; The bottom of the baffle plate is fixedly connected to the top of the elliptical plate; The baffle plate has an extension slot, and a control block is fixedly connected to the side wall of the extension slot; The inverted V plate has a slot.

[0013] Furthermore, the auxiliary components include limiting plates fixedly connected to the left and right sides of the elliptical plate, and two V-shaped plates fixedly connected to the side wall of the right limiting plate, the two V-shaped plates being symmetrically distributed with the inverted V plate as the center.

[0014] 1. In this invention, four elliptical plates are circumferentially distributed on the main body, so that the four sides of the PCB board are subjected to an inward pushing force, reducing the displacement of the PCB board within the main body. Due to the arrangement of the elliptical plates, the movement of the PCB board within the main body is reduced, thereby improving the stability of the placement process and thus improving the accuracy of placement.

[0015] 2. In this invention, when the sliding block drives the PCB board to move, the elliptical plate will undergo further deformation until the PCB board is completely flattened by the movement of the sliding block. Due to the setting of the blocking plate and the movement of the sliding block, the warping of the PCB board is reduced, and the flatness of the PCB board during the mounting process is improved.

[0016] 3. In this invention, when the PCB board warps due to the pressure of the limiting plate, it will be blocked by the fixed blocking plate. Due to the deformation of the inverted V plate, the blocking plate warps upward, thereby increasing the distance between the blocking plate and the PCB board when it extends, and improving the integrity of the PCB board during the mounting process.

[0017] 4. In this invention, a blocking plate is also provided on the top of the PCB board to block it, so that the PCB board will not move upward when subjected to tension. Since the sliding block will still provide a tension to the PCB board when the PCB board is flattened, the PCB will move less under the influence of the tension of the sliding block, thereby further improving the stability of the placement process.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional schematic diagram of the main body of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of A in the middle; Figure 4 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of B in the middle; Figure 6This is a diagram showing the location distribution of the fixed components of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of C; Figure 8 This is a planar schematic diagram showing the positional relationship of the fixed components of the present invention; Figure 9 This is a diagram showing the location distribution of the raised components of the present invention; Figure 10 For the present invention Figure 9 A magnified view of D.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Cover plate; 11. Locking component; 111. Starting block; 112. Limiting block; 12. Unlocking component; 121. Unlocking plate; 122. Spring; 123. Locking groove; 124. Fixing plate; 2. Fixing mechanism; 201. Pushing plate; 21. Fixing component; 211. Transmission plate; 212. Pushing block; 213. Elliptical plate; 22. Flattening component; 221. Movable groove; 222. Sliding block; 223. S-shaped plate; 3. Blocking mechanism; 31. Tilt-up component; 311. Inverted V-plate; 312. Blocking plate; 313. Extending groove; 314. Control block; 32. Auxiliary component; 321. Limiting plate; 322. V-shaped plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 10 As shown, the present invention is an automatic PCB board mounting fixture, including a main body 1, a cover plate 101 disposed on the top of the main body 1, and further comprising: Fixing mechanism 2 is installed inside the main body 1. When the PCB board is placed on top of the main body 1, the clamping of the internal parts of the fixing mechanism 2 reduces the possibility of movement of the PCB board in subsequent work. The blocking mechanism 3 is installed inside the fixing mechanism 2. When the parts inside the fixing mechanism 2 clamp the PCB board, the movement of the parts inside the blocking mechanism 3 will reduce the damage to the PCB board.

[0024] Entity 1 includes: Locking component 11 is disposed inside the main body 1; Unlock component 12 is located on the left and right sides of locking component 11.

[0025] The fixing mechanism 2 includes a push plate 201 mounted on the bottom of the locking assembly 11, and the fixing mechanism 2 also includes: Fixing component 21 is disposed inside the main body 1; Flattening component 22 is located on the left side of fixing component 21.

[0026] The blocking mechanism 3 includes: The tilting component 31 is disposed inside the fixed component 21; Auxiliary component 32 is located to the right of fixed component 21.

[0027] The locking component 11 includes an actuating block 111 that is slidably connected inside the main body 1. The side wall of the actuating block 111 is slidably connected to four limiting blocks 112. The four limiting blocks 112 are arranged in pairs and symmetrically distributed around the center line of the actuating block 111. Among them, a spring is fixedly connected to the back of the limiting block 112, so that the starting block 111 will not be pushed back by the push plate 201 to reset the starting block 111. The descent of the push plate 201 causes the push plate 201 to expand outwards.

[0028] The unlocking component 12 includes four unlocking plates 121 that are slidably connected inside the main body 1; The four unlocking plates 121 are arranged in pairs and symmetrically distributed around the starting block 111. A fixed plate 124 is fixedly connected to the end of one group of unlocking plates 121 away from the starting block 111. Two springs 122 are fixedly connected to the left side of the unlocking plate 121, and the two springs 122 are symmetrically distributed with the unlocking plate 121 as the center. The unlocking plate 121 has a locking groove 123 on the side near the starting block 111. When the starting block 111 is pressed, the limiting block 112 inside the starting block 111 is pushed into the locking groove 123 by the spring behind it.

[0029] The fixed assembly 21 includes four transmission plates 211 rotatably connected to the side wall of the push plate 201, and the four transmission plates 211 are circumferentially distributed around the starting block 111. A push block 212 is provided on the right side of the transmission plate 211, and the push block 212 is slidably connected to the inner wall of the main body 1; An elliptical plate 213 is provided above the push block 212. The elliptical plate 213 is slidably connected to the top of the main body 1. The upward movement of the push block 212 will cause the limiting plate 321 on the side wall of the elliptical plate 213 to be squeezed by the push block 212 and move towards the center of the main body 1, thereby pushing the elliptical plate 213 to move.

[0030] The leveling component 22 includes four movable slots 221 formed on the push plate 201, and the four movable slots 221 are distributed around the circumference of the push plate 201. A sliding block 222 is provided on the top of the movable groove 221, and the sliding block 222 is slidably connected inside the main body 1; several rubber strips are fixedly connected to the top of the sliding block 222. The bottom of the sliding block 222 is rotatably connected to an S-shaped plate 223; Among them, the side wall of the S-shaped plate 223 near the starting block 111 is in close contact with the side wall of the movable groove 221, and the bottom of the S-shaped plate 223 is fixedly connected to the bottom inner wall of the main body 1. Since the top of the S-shaped plate 223 is rotatably connected to the sliding block 222 and the bottom of the S-shaped plate 223 is fixedly connected to the main body 1, the side wall of the movable groove 221 will push the C-shaped plate at the bottom of the S-shaped plate 223 to deform, causing the top sliding block 222 to slide towards the transmission plate 211.

[0031] The tilting component 31 includes an inverted V-plate 311 fixedly connected to the inner wall of the elliptical plate 213, and a baffle plate 312 is provided on the top of the inverted V-plate 311. The bottom of the baffle plate 312 is fixedly connected to the top of the elliptical plate 213; The baffle plate 312 has an extension groove 313, and a control block 314 is fixedly connected to the side wall of the extension groove 313. The inverted V-plate 311 has a slot.

[0032] The auxiliary component 32 includes a limiting plate 321 fixedly connected to the left and right sides of the elliptical plate 213. Two V-shaped plates 322 are fixedly connected to the side wall of the right limiting plate 321. The two V-shaped plates 322 are symmetrically distributed with the inverted V plate 311 as the center. When the PCB board is squeezed by the limiting plate 321 and warps, it will be blocked by the fixed blocking plate 312 due to the deformation of the inverted V plate 311.

[0033] In use, the operator places the PCB board into the top groove of the main body 1. Due to the setting of the starting block 111, the PCB board is not yet fully attached to the top of the main body 1. At this time, the operator needs to press the PCB board at the position of the starting block 111 to make the starting block 111 move downward. The movement of the starting block 111 will push the push plate 201 downward, and at the same time make the PCB board fully attached to the top of the main body 1. As the starting block 111 is pressed, the limiting block 112 inside the starting block 111 is pushed into the locking groove 123 by the spring behind it, so that the starting block 111 will not be pushed back by the push plate 201 to reset. The descent of the push plate 201 will cause the push plate 201 to expand outward, pushing the movement of the fixing mechanism 2 and the blocking mechanism 3 to fix the PCB board, thus completing the fixing of the PCB board. Then it is put into the automatic placement machine for placement.

[0034] When the starting block 111 is pressed, the middle part of the push plate 201 moves downward along with the descent of the starting block 111. As the middle part of the push plate 201 moves downward, the edge of the push plate 201 gradually expands outward. The expansion of the edge of the push plate 201 pushes the transmission plate 211 towards the side wall of the main body 1. When the transmission plate 211 moves towards the side wall of the main body 1, it pushes the push block 212 upward. The upward movement of the push block 212 causes the limiting plate 321 on the side wall of the elliptical plate 213 to be squeezed by the push block 212 and move towards the center of the main body 1, thereby pushing the elliptical plate 213 to move. Because the side of the elliptical plate 213 closest to the PCB board will contact the PCB board and cause the elliptical plate 213 to deform, the limiting plate 321 on the side wall of the elliptical plate 213 will be in close contact with the side wall of the PCB board. Since the four elliptical plates 213 are circumferentially distributed on the main body 1, the four sides of the PCB board will be subjected to an inward pushing force, which reduces the displacement of the PCB board within the main body 1. The setting of the elliptical plates 213 reduces the movement of the PCB board inside the main body 1, thereby improving the stability of the placement process and thus improving the accuracy of placement.

[0035] When the edge of the push plate 201 moves outward, the movable groove 221 of the push plate 201 near the side wall of the starting block 111 pushes the S-shaped plate 223 toward the transmission plate 211. Since the top of the S-shaped plate 223 is rotatably connected to the sliding block 222 and the bottom of the S-shaped plate 223 is fixedly connected to the main body 1, the side wall of the movable groove 221 pushes the C-shaped plate at the bottom of the S-shaped plate 223 to deform, causing the top sliding block 222 to slide toward the transmission plate 211. At this time, a blocking plate 312 is provided on the side of the elliptical plate 213 near the push block 212. When the elliptical plate 213 is squeezed and deformed, the blocking plate 312 is driven by the limiting plate 321 on the side wall of the elliptical plate 213 toward the center of the main body 1. Since the side of the elliptical plate 213 near the PCB board is blocked by the PCB board, the side of the blocking plate 312 near the center of the main body 1 exceeds the limiting plate 321 on the side of the center of the main body 1. 2 will move to the top of the PCB board, so that when the PCB board warps due to the pressure of the elliptical plate 213 on the side wall, it will be blocked by the extended blocking plate 312, so that the PCB board will only warp slightly. The bottom of the warped PCB will still be in contact with the rubber strip on the top of the sliding block 222. Therefore, when the sliding block 222 moves, it will still drive the top of the PCB board to move outward, thereby reducing the warping of the PCB caused by the pressure of the elliptical plate 213. When the sliding block 222 drives the PCB board to move outward, since the elliptical plate 213 has a certain deformation capacity, when it is subjected to the squeezing force brought by the movement of the PCB board driven by the sliding block 222, the elliptical plate 213 will undergo further deformation until the PCB board is completely flattened by the movement of the sliding block 222. Due to the setting of the blocking plate 312 and the movement of the sliding block 222, the warping of the PCB board is reduced, and the flatness of the PCB board during the placement process is improved.

[0036] When the elliptical plate 213 is deformed by the pressure of the limiting plate 321, the two limiting plates 321 will move closer to each other. When the limiting plates 321 move closer to each other, the inverted V plate 311 inside will be deformed by the proximity of the two limiting plates 321. At this time, the tip of the inverted V plate 311 will move upward. When the tip of the inverted V plate 311 moves upward, it will push the top blocking plate 312 to warp upward along the connection with the limiting plate 321. When the blocking plate 312 warps, the blocking plate 312 will extend, thereby reducing the possibility of the side of the blocking plate 312 near the PCB board scraping against the PCB board when it extends. When the inverted V plate 311 deforms, the limiting plate 321 near the PCB board is blocked by the PCB, so the inverted V plate 311 moves relative to the bottom of the blocking plate 312. When the tip of 311 moves to the area of ​​the protrusion slot 313, the inverted V plate 311 will pass through the protrusion slot 313. When the inverted V plate 311 passes through the protrusion slot 313, the pushing force generated by the deformation of the inverted V plate 311 on the blocking plate 312 will disappear, thus allowing the blocking plate 312 to return to its original position. At this time, the blocking plate 312 will continue to extend. When the blocking plate 312 continues to extend until the control block 314 enters the slot opened on the inverted V plate 311, the blocking plate 312 will no longer be pushed by the bottom and thus warp. When the PCB board warps due to the pressure of the limiting plate 321, it will be blocked by the fixed blocking plate 312. Due to the deformation of the inverted V plate 311, the blocking plate 312 warps upward, thereby increasing the distance between the blocking plate 312 and the PCB board when it extends, and improving the integrity of the PCB board during the placement process.

[0037] When the PCB board is flattened by the rubber strip on top of the sliding block 222, the movement of the blocking plate 312 reduces the warping of the PCB board. Therefore, the distance the sliding block 222 needs to move to flatten the PCB board also decreases. This means that the PCB board is flattened when the sliding block 222 has moved halfway or more than halfway. At this point, the pushing plate 201 continues to move. Since the PCB board is flattened, the sliding block 222 cannot move. The sidewall of the movable groove 221 still pushes the sidewall of the S-shaped plate 223. When the sliding block 222 cannot move and the S-shaped plate 223 is still being pushed by the sidewall of the movable groove 221, the top of the S-shaped plate 223 will rotate first, causing the upper part of the S-shaped plate 223 to... The C-shaped half of the board deforms to ensure the normal movement of the pusher 201. At this time, due to the deformation of the S-shaped board 223, the sliding block 222 will always have a tendency to move outward from the main body 1. Since there are four sliding blocks 222, the bottom of the already flattened PCB board will still be affected by the tension generated by the movement of the four sliding blocks 222. In addition, a blocking plate 312 is also set on the top of the PCB board to block it, so that the PCB board will not move upward when subjected to tension. Since the sliding block 222 will still provide a tension to the PCB board when the PCB board is flattened, the PCB will move less under the influence of the tension of the sliding block 222, thereby further improving the stability of the placement process.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic PCB board mounting fixture, comprising a main body (1), wherein a cover plate (101) is provided on the top of the main body (1), characterized in that, Also includes: Fixing mechanism (2) is installed inside the main body (1). When the PCB board is placed on top of the main body (1), the clamping of the internal parts of the fixing mechanism (2) reduces the possibility of movement of the PCB board in subsequent work. The blocking mechanism (3) is installed inside the fixing mechanism (2). When the parts inside the fixing mechanism (2) clamp the PCB board, the movement of the parts inside the blocking mechanism (3) will reduce the damage of the components to the PCB board.

2. The PCB automatic placement fixture according to claim 1, characterized in that: The main body (1) includes: A locking component (11) is disposed inside the main body (1); Unlocking component (12) is disposed on the left and right sides of locking component (11).

3. The PCB board automatic placement fixture according to claim 2, characterized in that: The fixing mechanism (2) includes a push plate (201) mounted on the bottom of the locking assembly (11), and the fixing mechanism (2) further includes: Fixing component (21), said fixing component (21) is disposed inside the main body (1); A leveling component (22) is disposed to the left of the fixing component (21).

4. The PCB board automatic placement fixture according to claim 3, characterized in that: The blocking mechanism (3) includes: A tilting component (31) is disposed inside the fixing component (21); An auxiliary component (32) is disposed to the right of the fixed component (21).

5. The PCB board automatic placement fixture according to claim 1, characterized in that: The locking component (11) includes a starting block (111) slidably connected inside the main body (1), and four limiting blocks (112) are slidably connected to the side wall of the starting block (111); the four limiting blocks (112) are arranged in pairs and symmetrically distributed around the center line of the starting block (111); A spring is fixedly connected to the back of the limiting block (112).

6. The PCB automatic placement fixture according to claim 1, characterized in that: The unlocking component (12) includes four unlocking plates (121) that are slidably connected inside the main body (1). The four unlocking plates (121) are arranged in pairs and symmetrically distributed around the starting block (111). A fixing plate (124) is fixedly connected to one end of each unlocking plate (121) away from the starting block (111). Two springs (122) are fixedly connected to the left side of the unlocking plate (121), and the two springs (122) are symmetrically distributed with the unlocking plate (121) as the center. The unlocking plate (121) has a locking groove (123) on the side near the starting block (111).

7. The PCB automatic placement fixture according to claim 3, characterized in that: The fixed assembly (21) includes four transmission plates (211) rotatably connected to the side wall of the push plate (201), and the four transmission plates (211) are circumferentially distributed around the starting block (111); A push block (212) is provided on the right side of the transmission plate (211), and the push block (212) is slidably connected to the inner wall of the main body (1); An elliptical plate (213) is provided above the push block (212), and the elliptical plate (213) is slidably connected to the top of the main body (1).

8. The PCB board automatic placement fixture according to claim 3, characterized in that: The leveling component (22) includes four movable slots (221) formed on the push plate (201), the four movable slots (221) being distributed circumferentially around the push plate (201); A sliding block (222) is provided on the top of the movable groove (221), and the sliding block (222) is slidably connected inside the main body (1); a number of rubber strips are fixedly connected to the top of the sliding block (222); The bottom of the sliding block (222) is rotatably connected to an S-shaped plate (223); The S-shaped plate (223) is close to the side wall of the starting block (111) and the side wall of the movable groove (221), and the bottom of the S-shaped plate (223) is fixedly connected to the bottom inner wall of the main body (1).

9. The PCB board automatic placement fixture according to claim 7, characterized in that: The tilting assembly (31) includes an inverted V-plate (311) fixedly connected to the inner wall of the elliptical plate (213), and a baffle plate (312) is provided on the top of the inverted V-plate (311). The bottom of the baffle plate (312) is fixedly connected to the top of the elliptical plate (213); The baffle plate (312) has an extension groove (313), and a control block (314) is fixedly connected to the side wall of the extension groove (313). The inverted V plate (311) has a slot.

10. The PCB board automatic placement fixture according to claim 7, characterized in that: The auxiliary component (32) includes a limiting plate (321) fixedly connected to the left and right sides of the elliptical plate (213). Two V-shaped plates (322) are fixedly connected to the side wall of the right limiting plate (321), and the two V-shaped plates (322) are symmetrically distributed with the inverted V plate (311) as the center.

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