A circuit board carrier fixture

Abstract

The invention discloses a circuit board carrier jig, which relates to the technical field of circuit board production and processing, and comprises a carrier bottom plate, wherein the outer walls of the four sides of the carrier bottom plate are provided with storage circular holes, wherein a rotating telescopic component is fixed inside the storage circular hole, and one end of the rotating telescopic component located outside the carrier bottom plate is rotatably connected with a transmission limit plate; the invention adjusts the distance between the transmission limit plate and the carrier bottom plate by rotating the telescopic component, so that the size of the circuit board carrier jig can be adaptively adjusted according to the spacing between the front and rear side retaining edges of the conveyor belt, and the circuit board mold core is placed in an embedded square groove at the top of the carrier bottom plate, and the circuit board mold core is positioned and fixed by inserting a resilient positioning pin into the square positioning groove, so that the circuit board carrier jig of the circuit board is convenient for conveniently replacing circuit board mold cores of different specifications according to the processing needs of circuit boards of different specifications, and can be suitable for carrying circuit boards of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board production and processing, and in particular to a circuit board carrier jig. Background Art

[0002] Circuit board, whose full name is printed circuit board (PCB), is a thin plate used to support and connect electronic components. It is printed with conductive graphics and lines. The main function of the circuit board is to realize the electrical connection between electronic components, and at the same time it plays a role of fixing and supporting. With the rapid development of electronic products, especially the popularization of new technologies such as 5G communication, artificial intelligence, and the Internet of Things, the demand for printed circuit boards has gradually increased, thereby driving the demand for the substrate fixture market.

[0003] The circuit board carrier jig is a tool used to assist in the production and testing of circuit boards. It is mainly used to fix and protect the circuit boards during the transmission process of the circuit boards to ensure the stability and accuracy of the circuit boards during the production and transmission process. The circuit board carrier jig is usually composed of components such as a carrier board, a limit plate and a spacer plate. The carrier board is the main part of the circuit board, and the limit plate and the spacer plate are used to fix the position of the circuit board to prevent it from moving or being damaged during the production process. With the improvement of the degree of production automation, the requirements for the accuracy and reliability of the circuit board carrier jig are also constantly increasing.

[0004] Most of the existing circuit board carrier jigs have fixed structures, which is not convenient for adaptively adjusting the size of the circuit board carrier jig itself according to the spacing between the front and rear side guards of the conveyor belt, resulting in that the circuit board carrier jig of the same specification cannot be stably conveyed on conveyor belts of different specifications, and the applicability is low. Conveyor belts of different specifications require the use of circuit board carrier jigs of different specifications, which increases the jig cost to a certain extent. In addition, the existing circuit board carrier jig can only carry and fix circuit boards of a single specification. Carrying and fixing circuit boards of different specifications requires replacing the carrier jigs of different specifications as a whole, which is inconvenient to use and further increases the cost of the carrier jig. Therefore, the present invention proposes a circuit board carrier jig to solve the problems existing in the prior art. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to propose a circuit board carrier jig to solve the problem that the existing circuit board carrier jig is not convenient for adaptively adjusting the size of the circuit board carrier jig itself according to the spacing between the front and rear side guards of the conveyor belt, resulting in circuit board carrier jigs of the same specifications being unable to be stably transported on conveyor belts of different specifications, and the problem that circuit boards of different specifications need to be carried and fixed by replacing the carrier jigs of different specifications as a whole.

[0006] In order to achieve the purpose of the present invention, the present invention is implemented through the following technical scheme: a carrier jig for a circuit board, comprising a carrier base plate, the outer walls of the four sides of the carrier base plate are provided with storage circular holes, a rotating and telescopic component is fixed inside the storage circular hole, one end of the rotating and telescopic component located outside the carrier base plate is rotatably connected to a conveying limit plate, an embedding square groove is provided at the top of the carrier base plate, a circuit board mold core is embedded and plugged in the embedding square groove, a circuit board placement groove adapted to the circuit board is provided at the top of the circuit board mold core, resilient positioning pins that penetrate into the embedding square groove are slidably provided on the four sides of the interior of the carrier base plate, a square positioning groove adapted to the resilient positioning pin is provided on the outer wall of the circuit board mold core, and concave brackets are slidably connected to both sides of the top of the carrier base plate, and a circuit board positioning assembly is provided on the concave bracket.

[0007] A further improvement is that the circuit board positioning assembly includes a screw rod threaded through the concave bracket and a knob fixed to the top of the screw rod, the bottom end of the screw rod is rotatably connected to a pressure plate slidably arranged on the inner side of the concave bracket, a positioning cone is fixed at the middle position of the bottom end of the pressure plate, and a conical rubber block is fixed to the bottom end of the positioning cone.

[0008] Further improvement is that: the circuit board positioning assembly includes a lifting rod that slides through the concave bracket and a pull ring fixed to the top of the lifting rod, the bottom end of the lifting rod is fixed with a lifting plate located on the inner side of the concave bracket, a linear spring movably mounted on the outside of the lifting rod is connected between the lifting plate and the top of the concave bracket, and a conical positioning column is fixed at the middle position of the bottom end of the lifting plate.

[0009] A further improvement is that sliding rods are symmetrically fixed to the top of the lifting plate, and the top of the sliding rods slides through to the top of the concave bracket.

[0010] A further improvement is that: T-shaped sliders are fixed on both the front and rear sides of the bottom end of the concave bracket, and T-shaped slide rails adapted to the T-shaped sliders are symmetrically opened on both sides of the top of the carrier bottom plate, and the T-shaped sliders are slidably arranged in the T-shaped slide rails.

[0011] Further improvement is that: cavities are opened on the four sides of the inner side of the carrier base plate at the position of the reboundable positioning pin, the end of the reboundable positioning pin away from the square positioning groove slides through the cavity and is fixed with a spring block, and a limiting spring is fixed between the inner wall of the cavity away from the engaging square groove and the spring block.

[0012] A further improvement is that a connecting block is fixed on the top of the spring block, the top of the connecting block slides through the top of the carrier bottom plate and is fixed with a push-pull block, and the top of the carrier bottom plate is symmetrically provided with through grooves that are connected to the cavity and adapted to the connecting block.

[0013] A further improvement is that the rotating telescopic assembly includes a threaded rod fixed to the inner wall of the receiving circular hole and a threaded tube threadedly sleeved on the threaded rod, and one end of the threaded tube located outside the receiving circular hole is rotatably connected to the transmission limit plate through a bearing.

[0014] A further improvement is that both sides of the storage circular hole are provided with limiting circular holes opened on the outer wall of the carrier bottom plate, the limiting circular hole is slidably connected to the inside of the limiting circular hole, and the limiting rod is fixedly connected to the transmission limiting plate at one end located outside the carrier bottom plate.

[0015] A further improvement is that grooves are equidistantly formed on the outer wall of the transmission limit plate on one side away from the carrier bottom plate, and rollers are rotatably connected to the inside of the grooves via a rotating shaft, and the grooves extend from the side of the rollers away from the carrier bottom plate.

[0016] The beneficial effects of the present invention are as follows: the present invention adjusts the distance between the conveying limit plate and the carrier bottom plate by rotating the telescopic assembly, so that the size of the circuit board carrier jig can be adaptively adjusted according to the spacing between the ribs on both sides of the conveyor belt, so that the circuit board carrier jig can be stably conveyed on conveyor belts of different specifications, and has high applicability, and there is no need to prepare circuit board carrier jigs of different specifications according to conveyor belts of different specifications, thereby reducing the jig cost in the circuit board production process to a certain extent;

[0017] In addition, by embedding and placing the circuit board mold core in the embedding square groove at the top of the carrier bottom plate, and inserting the resilient positioning pin into the square positioning groove to position and fix the circuit board mold core, the resilient positioning pin can be pulled out of the square positioning groove to release the fixation, so that the carrier jig of the circuit board is convenient for conveniently replacing circuit board mold cores of different specifications according to the processing needs of circuit boards of different specifications, and then the carrier jig of the circuit board can be suitable for carrying circuit boards of different specifications without the need to replace the carrier jig body as a whole. It is easy to use and reduces the cost of the carrier jig in the circuit board production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0019] Figure 2 is a front cross-sectional view of the first embodiment of the present invention;

[0020] Figure 3 is a top view of the first embodiment of the present invention;

[0021] Figure 4 is a top cross-sectional view of Embodiment 1 and Embodiment 2 of the present invention;

[0022] Figure 5 is a side view of a concave bracket according to the first embodiment of the present invention;

[0023] Figure 6 is a front cross-sectional view of the second embodiment of the present invention;

[0024] Figure 7 is a top view of the second embodiment of the present invention;

[0025] Figure 8 It is a side view of the concave bracket of the second embodiment of the present invention.

[0026] Among them: 1. Carrier bottom plate; 2. Storage round hole; 3. Rotating telescopic component; 4. Transmission limit plate; 5. Embedding square groove; 6. Circuit board mold core; 7. Circuit board placement groove; 8. Resilient positioning pin; 9. Square positioning groove; 10. Concave bracket; 11. Circuit board positioning component; 12. T-shaped slider; 13. T-shaped slide rail; 14. Cavity; 15. Spring block; 16. Limit spring; 17. Connection block; 18 , push-pull block; 19, through groove; 20, threaded rod; 21, threaded tube; 22, limiting circular hole; 23, limiting rod; 24, groove; 25, roller; 1101, screw rod; 1102, knob; 1103, pressure plate; 1104, positioning cone; 1105, conical rubber block; 1106, lifting rod; 1107, pull ring; 1108, lifting plate; 1109, conical positioning column; 1110, sliding rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The present embodiment provides a circuit board carrier jig, including a carrier bottom plate 1 as the main body of the carrier jig and in a square design, a circular storage hole 2 is opened in the middle of the outer walls of the four sides of the carrier bottom plate 1, and a retractable and adjustable rotating telescopic component 3 is fixed to the inner wall of the storage hole 2 away from the outside of the carrier bottom plate 1 by bolts, and the end of the rotating telescopic component 3 located outside the carrier bottom plate 1 is rotatably connected to a transmission limit plate 4 through a bearing, and the distance between the transmission limit plate 4 and the carrier bottom plate 1 is adjusted by rotating the telescopic component 3, so that the size of the circuit board carrier jig can be adjusted according to the transmission. The spacing between the ribs on both sides of the conveyor belt can be adaptively adjusted, so that the circuit board carrier jig can be stably transported on conveyor belts of different specifications. A square-shaped engaging square groove 5 is provided at the top of the carrier bottom plate 1. A circuit board mold core 6 for placing the circuit board is inserted and inserted in the engaging square groove 5. A circuit board placement groove 7 is provided at the top of the circuit board mold core 6. The circuit board placement groove 7 is adapted to the circuit board and is used to place the circuit board to be produced and processed. The circuit board mold core 6 is provided with several groups. The circuit board placement grooves 7 on several groups of circuit board mold cores 6 have different specifications and sizes, corresponding to circuit boards of different specifications. The circuit board mold core 6 can be selected and replaced according to the actual production and processing needs. The four sides of the inside of the carrier bottom plate 1 are slidably provided with resilient positioning pins 8. The resilient positioning pins 8 have a rebound reset function. The end close to the engaging square groove 5 can automatically rebound to the inside of the engaging square groove 5. A square positioning groove 9 is opened on the outer wall of the circuit board mold core 6, and the square positioning groove 9 is adapted to the resilient positioning pin 8. After the resilient positioning pin 8 is inserted into the square positioning groove 9, the circuit board mold core 6 can be positioned and fixed to prevent it from being separated from the engaging square groove 5. The left and right sides of the top of the carrier bottom plate 1 are slidably connected with a concave bracket 10 with a concave design. The concave bracket A circuit board positioning assembly 11 is provided on 10 for positioning and fixing the circuit board in the circuit board placement groove 7. The circuit board core 6 is placed in the engaging square groove 5 at the top of the carrier base plate 1, and the circuit board core 6 is positioned and fixed by inserting the resilient positioning pin 8 into the square positioning groove 9. The resilient positioning pin 8 can be pulled out of the square positioning groove 9 to release the fixation, so that the circuit board carrier jig is convenient for conveniently replacing circuit board cores 6 of different specifications according to the processing needs of circuit boards of different specifications, and thus the circuit board carrier jig can be suitable for carrying circuit boards of different specifications.

[0030] The circuit board positioning assembly 11 includes a screw rod 1101 and a knob 1102, wherein the screw rod 1101 threadedly passes through the middle position of the top of the concave bracket 10, the knob 1102 is fixed to the top of the screw rod 1101 by a bolt, the bottom end of the screw rod 1101 is rotatably connected to a pressure plate 1103 through a bearing, and the pressure plate 1103 is slidably arranged on the inner side of the concave bracket 10, a positioning cone 1104 is fixed to the middle position of the bottom end of the pressure plate 1103 by screws, and a conical rubber block 1105 is fixed to the bottom end of the positioning cone 1104 by adhesive bonding. When in use, the concave bracket 10 is first slidably displaced to the upper side of the edge position of the circuit board in the circuit board placement groove 7 to avoid affecting the subsequent processing of the circuit board, and the screw rod 1101 is driven to rotate downward by rotating the knob 1102, and the screw rod 1101 drives the pressure plate 1103 to descend, and during the descent of the pressure plate 1103, it drives the positioning cone 1104 and the conical rubber block 1105 to press and fix the edge of the circuit board below it.

[0031] T-shaped sliders 12 are welded and fixed on both the front and rear sides of the bottom end of the concave bracket 10, and T-shaped slide rails 13 symmetrically distributed front and back are opened on both the left and right sides of the top of the carrier base plate 1. The T-shaped slide rails 13 are adapted to the T-shaped sliders 12, and the T-shaped sliders 12 are slidably arranged in the T-shaped slide rails 13, so that the concave bracket 10 can slide and move at the top of the carrier base plate 1.

[0032] Cavities 14 are provided on all four sides of the carrier base plate 1. The cavity 14 is located at the position of the reboundable positioning pin 8. The end of the reboundable positioning pin 8 away from the square positioning groove 9 slides into the cavity 14 and is fixed with a spring block 15 slidably arranged in the cavity 14 by screws. A limiting spring 16 is fixed to the inner wall of the cavity 14 away from the engaging square groove 5. The end of the limiting spring 16 close to the spring block 15 is fixedly connected to the spring block 15. The limiting spring 16 provides elastic force to the spring block 15, so that the reboundable positioning pin 8 has automatic rebound capability.

[0033] A connecting block 17 is fixed to the top of the spring block 15 by screws. The top of the connecting block 17 slides through to the top of the carrier base plate 1 and is fixed with a push-pull block 18 by screws. The push-pull block 18 allows users to push and pull the spring block 15 to drive the resilient positioning pin 8 to move. A through groove 19 that is connected to the cavity 14 and adapted to the connecting block 17 is symmetrically provided on the top of the carrier base plate 1, which facilitates the push-pull block 18 to slide through.

[0034] The rotating and telescopic assembly 3 includes a threaded rod 20 and a threaded tube 21, wherein one end of the threaded rod 20 away from the outside of the carrier base plate 1 is fixed to the inner wall of the receiving circular hole 2 by a screw, and the threaded tube 21 is threadedly sleeved on the threaded rod 20, and one end of the threaded tube 21 located outside the receiving circular hole 2 is rotatably connected to the transmission limit plate 4 through a bearing. The threaded tube 21 is rotated to make it move on the threaded rod 20 and extend or retract into the receiving circular hole 2, thereby driving the transmission limit plate 4 to move. Limit circular holes 22 are provided on both sides of the receiving circular hole 2, and the limit circular holes 22 are opened on the outer wall of the carrier base plate 1. The limit circular hole 22 is slidably connected to the limit rod 23, and the end of the limit rod 23 located outside the carrier base plate 1 is fixedly connected to the transmission limit plate 4 by a screw, which plays a limiting role in the transmission limit plate 4, making it more stable during movement.

[0035] A groove 24 is provided on the outer wall of the transmission limit plate 4 on the side away from the carrier base plate 1. The grooves 24 are provided in three groups and are evenly distributed. A roller 25 is rotatably connected to the inside of the groove 24 via a rotating shaft. The groove 24 is extended from the side of the roller 25 away from the carrier base plate 1. The roller 25 reduces the friction coefficient between the transmission limit plate 4 and the front and rear side guards of the conveyor belt, making the transmission process smoother.

[0036] Embodiment 2

[0037] See also Figure 4 , Figure 6 , Figure 7 , Figure 8The present embodiment provides a circuit board carrier jig, including a carrier bottom plate 1 as the main body of the carrier jig and in a square design, a circular storage hole 2 is opened in the middle of the outer walls of the four sides of the carrier bottom plate 1, and a retractable and adjustable rotating telescopic component 3 is fixed to the inner wall of the storage hole 2 away from the outside of the carrier bottom plate 1 by bolts, and the end of the rotating telescopic component 3 located outside the carrier bottom plate 1 is rotatably connected to a transmission limit plate 4 through a bearing, and the distance between the transmission limit plate 4 and the carrier bottom plate 1 is adjusted by rotating the telescopic component 3, so that the size of the circuit board carrier jig can be adjusted according to the transmission. The spacing between the ribs on both sides of the conveyor belt can be adaptively adjusted, so that the circuit board carrier jig can be stably transported on conveyor belts of different specifications. A square-shaped engaging square groove 5 is provided at the top of the carrier bottom plate 1. A circuit board mold core 6 for placing the circuit board is inserted and inserted in the engaging square groove 5. A circuit board placement groove 7 is provided at the top of the circuit board mold core 6. The circuit board placement groove 7 is adapted to the circuit board and is used to place the circuit board to be produced and processed. The circuit board mold core 6 is provided with several groups. The circuit board placement grooves 7 on several groups of circuit board mold cores 6 have different specifications and sizes, corresponding to circuit boards of different specifications. The circuit board mold core 6 can be selected and replaced according to the actual production and processing needs. The four sides of the inside of the carrier bottom plate 1 are slidably provided with resilient positioning pins 8. The resilient positioning pins 8 have a rebound reset function. The end close to the engaging square groove 5 can automatically rebound to the inside of the engaging square groove 5. A square positioning groove 9 is opened on the outer wall of the circuit board mold core 6, and the square positioning groove 9 is adapted to the resilient positioning pin 8. After the resilient positioning pin 8 is inserted into the square positioning groove 9, the circuit board mold core 6 can be positioned and fixed to prevent it from being separated from the engaging square groove 5. The left and right sides of the top of the carrier bottom plate 1 are slidably connected with a concave bracket 10 with a concave design. The concave bracket A circuit board positioning assembly 11 is provided on 10 for positioning and fixing the circuit board in the circuit board placement groove 7. The circuit board core 6 is placed in the engaging square groove 5 at the top of the carrier base plate 1, and the circuit board core 6 is positioned and fixed by inserting the resilient positioning pin 8 into the square positioning groove 9. The resilient positioning pin 8 can be pulled out of the square positioning groove 9 to release the fixation, so that the circuit board carrier jig is convenient for conveniently replacing circuit board cores 6 of different specifications according to the processing needs of circuit boards of different specifications, and thus the circuit board carrier jig can be suitable for carrying circuit boards of different specifications.

[0038] The circuit board positioning assembly 11 includes a lifting rod 1106 and a pull ring 1107, wherein the lifting rod 1106 slides through the middle position of the top of the concave bracket 10, and the top of the concave bracket 10 is provided with a through groove adapted to the lifting rod 1106, and the pull ring 1107 is welded and fixed to the top of the lifting rod 1106, and the bottom of the lifting rod 1106 is fixed with a lifting plate 1108 by bolts, and a linear spring is connected between the lifting plate 1108 and the top of the concave bracket 10, and the linear spring is movably sleeved on the outside of the lifting rod 1106, and a conical positioning column 1109 is fixed with bolts at the middle position of the bottom end of the lifting plate 1108, and the top of the lifting plate 1108 Slide rods 1110 symmetrically distributed on the front and rear sides of the lifting rod 1106 are fixed by bolts, and the top of the slide rod 1110 slides through the top of the concave bracket 10 and extends to the top of the concave bracket 10. The top of the concave bracket 10 is symmetrically provided with through grooves adapted to the slide rod 1110. When in use, the lifting rod 1106 is first lifted by the pull ring 1107, and then the concave bracket 10 is slid and moved to the top of the edge of the circuit board in the circuit board placement groove 7, and then the pull ring 1107 is released, so that the lifting plate 1108 rebounds and descends under the action of the linear spring, and drives the conical positioning column 1109 to press and fix the edge of the circuit board below it.

[0039] T-shaped sliders 12 are welded and fixed on both the front and rear sides of the bottom end of the concave bracket 10, and T-shaped slide rails 13 symmetrically distributed front and back are opened on both the left and right sides of the top of the carrier base plate 1. The T-shaped slide rails 13 are adapted to the T-shaped sliders 12, and the T-shaped sliders 12 are slidably arranged in the T-shaped slide rails 13, so that the concave bracket 10 can slide and move at the top of the carrier base plate 1.

[0040] Cavities 14 are provided on all four sides of the carrier base plate 1. The cavity 14 is located at the position of the reboundable positioning pin 8. The end of the reboundable positioning pin 8 away from the square positioning groove 9 slides into the cavity 14 and is fixed with a spring block 15 slidably arranged in the cavity 14 by screws. A limiting spring 16 is fixed to the inner wall of the cavity 14 away from the engaging square groove 5. The end of the limiting spring 16 close to the spring block 15 is fixedly connected to the spring block 15. The limiting spring 16 provides elastic force to the spring block 15, so that the reboundable positioning pin 8 has automatic rebound capability.

[0041] A connecting block 17 is fixed to the top of the spring block 15 by screws. The top of the connecting block 17 slides through to the top of the carrier base plate 1 and is fixed with a push-pull block 18 by screws. The push-pull block 18 allows users to push and pull the spring block 15 to drive the resilient positioning pin 8 to move. A through groove 19 that is connected to the cavity 14 and adapted to the connecting block 17 is symmetrically provided on the top of the carrier base plate 1, which facilitates the push-pull block 18 to slide through.

[0042] The rotating and telescopic assembly 3 includes a threaded rod 20 and a threaded tube 21, wherein one end of the threaded rod 20 away from the outside of the carrier base plate 1 is fixed to the inner wall of the receiving circular hole 2 by a screw, and the threaded tube 21 is threadedly sleeved on the threaded rod 20, and one end of the threaded tube 21 located outside the receiving circular hole 2 is rotatably connected to the transmission limit plate 4 through a bearing. The threaded tube 21 is rotated to make it move on the threaded rod 20 and extend or retract into the receiving circular hole 2, thereby driving the transmission limit plate 4 to move. Limit circular holes 22 are provided on both sides of the receiving circular hole 2, and the limit circular holes 22 are opened on the outer wall of the carrier base plate 1. The limit circular hole 22 is slidably connected to the limit rod 23, and the end of the limit rod 23 located outside the carrier base plate 1 is fixedly connected to the transmission limit plate 4 by a screw, which plays a limiting role in the transmission limit plate 4, making it more stable during movement.

[0043] A groove 24 is provided on the outer wall of the transmission limit plate 4 on the side away from the carrier base plate 1. The grooves 24 are provided in three groups and are evenly distributed. A roller 25 is rotatably connected to the inside of the groove 24 via a rotating shaft. The groove 24 is extended from the side of the roller 25 away from the carrier base plate 1. The roller 25 reduces the friction coefficient between the transmission limit plate 4 and the front and rear side guards of the conveyor belt, making the transmission process smoother.

[0044] When it is necessary to transport the circuit board during its production and processing, a circuit board core 6 of corresponding specifications is pre-selected according to the size specifications of the circuit board that actually needs to be produced and processed, and is placed in the fitting square groove 5 at the top of the carrier bottom plate 1, and the resilient positioning pin 8 is inserted into the square positioning groove 9 to realize the positioning and fixation of the circuit board core 6, and then the circuit board to be produced and processed is placed in the circuit board placement groove 7 at the top of the circuit board core 6, and the circuit board positioning component 11 is used to stably fix it in the circuit board placement groove 7, and then the carrier bottom plate 1 is placed between the two sets of conveyor belt ribs on the conveyor belt, and then the rotating telescopic component 3 is used to drive the conveying limit plate 4 to move in the direction of the conveyor belt rib until the roller 25 on the outer wall of the conveying limit plate 4 contacts the conveyor belt baffle 6, as shown in FIG. Figure 3 As shown, the circuit board carrier jig is stably limited between two sets of conveyor belt ribs on the conveyor belt, and then the conveyor belt is started to transport the circuit board carrier jig, and the circuit board carried thereon is processed by patching, welding, etc. during the transportation process;

[0045] When it is necessary to replace the circuit board core 6 on the top of the carrier base plate 1 in order to carry circuit boards of different specifications, first use the push-pull block 18 to pull out the resilient positioning pin 8 from the square positioning groove 9 to release the positioning and fixation of the current circuit board core 6, then take out the current circuit board core 6 from the engaging square groove 5, and then place the new circuit board core 6 in the engaging square groove 5, and insert the resilient positioning pin 8 into the square positioning groove 9 to achieve the positioning and fixation of the new circuit board core 6, thereby completing the replacement of circuit board cores 6 of different specifications.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circuit board carrier jig, comprising a carrier base plate (1), characterized in that: The outer walls of the four sides of the carrier bottom plate (1) are provided with storage circular holes (2), a rotating telescopic component (3) is fixed inside the storage circular hole (2), one end of the rotating telescopic component (3) located outside the carrier bottom plate (1) is rotatably connected to a transmission limit plate (4), the top of the carrier bottom plate (1) is provided with an embedded square groove (5), a circuit board mold core (6) is embedded and plugged in the embedded square groove (5), and a circuit board placement groove (7) adapted to the circuit board is provided at the top of the circuit board mold core (6), and a resilient positioning pin (8) penetrating into the embedded square groove (5) is slidably provided on the four sides of the inside of the carrier bottom plate (1), and a square positioning groove (9) adapted to the resilient positioning pin (8) is provided on the outer wall of the circuit board mold core (6), and a concave bracket (10) is slidably connected to both sides of the top of the carrier bottom plate (1), and a circuit board is provided on the concave bracket (10). A positioning assembly (11), the circuit board positioning assembly (11) comprises a lifting rod (1106) slidingly passing through a concave bracket (10) and a pull ring (1107) fixed to the top of the lifting rod (1106); a lifting plate (1108) located inside the concave bracket (10) is fixed to the bottom end of the lifting rod (1106); a linear spring movably sleeved on the outside of the lifting rod (1106) is connected between the lifting plate (1108) and the top of the inside of the concave bracket (10); a conical positioning column (1109) is fixed at the middle position of the bottom end of the lifting plate (1108); the rotating and telescopic assembly (3) comprises a threaded rod (20) fixed to the inner wall of the receiving circular hole (2) and a threaded tube (21) threadedly sleeved on the threaded rod (20); one end of the threaded tube (21) located outside the receiving circular hole (2) is rotatably connected to the transmission limit plate (4) through a bearing.

2. The circuit board carrier jig according to claim 1, characterized in that: The circuit board positioning assembly (11) comprises a screw rod (1101) threadedly penetrating the concave bracket (10) and a knob (1102) fixed to the top of the screw rod (1101); the bottom end of the screw rod (1101) is rotatably connected to a pressure plate (1103) slidably arranged inside the concave bracket (10); a positioning cone (1104) is fixed at the middle position of the bottom end of the pressure plate (1103); and a conical rubber block (1105) is fixed to the bottom end of the positioning cone (1104).

3. The circuit board carrier jig according to claim 1, characterized in that: A sliding rod (1110) is symmetrically fixed to the top of the lifting plate (1108), and the top of the sliding rod (1110) slides through to the top of the concave bracket (10).

4. The circuit board carrier jig according to claim 1, characterized in that: T-shaped sliders (12) are fixed to both front and rear sides of the bottom of the concave bracket (10), and T-shaped slide rails (13) adapted to the T-shaped sliders (12) are symmetrically provided on both sides of the top of the carrier bottom plate (1), and the T-shaped sliders (12) are slidably arranged in the T-shaped slide rails (13).

5. The circuit board carrier jig according to claim 1, characterized in that: The four sides of the carrier bottom plate (1) are provided with cavities (14) at the positions of the resilient positioning pins (8); one end of the resilient positioning pin (8) away from the square positioning groove (9) slides through the cavity (14) and is fixed with a spring block (15); a limit spring (16) is fixed between the inner wall of the cavity (14) away from the engaging square groove (5) and the spring block (15).

6. The circuit board carrier jig according to claim 5, characterized in that: A connecting block (17) is fixed to the top of the spring block (15); the top of the connecting block (17) slides through the top of the carrier bottom plate (1) and is fixed with a push-pull block (18); and the top of the carrier bottom plate (1) is symmetrically provided with through grooves (19) that are in communication with the cavity (14) and are adapted to the connecting block (17).

7. The circuit board carrier jig according to claim 1, characterized in that: Both sides of the storage circular hole (2) are provided with limiting circular holes (22) opened on the outer wall of the carrier bottom plate (1), and the limiting circular hole (22) is slidably connected to a limiting rod (23) inside, and one end of the limiting rod (23) located outside the carrier bottom plate (1) is fixedly connected to the transmission limiting plate (4).

8. The circuit board carrier jig according to claim 1, characterized in that: The outer wall of the transmission limit plate (4) on the side away from the carrier bottom plate (1) is provided with grooves (24) at equal intervals, and a roller (25) is rotatably connected to the inside of the groove (24) via a rotating shaft, and the groove (24) is extended from the side of the roller (25) away from the carrier bottom plate (1).

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