A double-sided circuit board winding clamping fixture system

Abstract

A double-sided circuit board winding clamping fixture system, which includes a lower clamp assembly, an upper clamp assembly, and a locking assembly. The lower clamp assembly includes a lower clamp and a lower clamp through hole. The upper clamp assembly includes an upper clamp, an insertion rod, and an upper clamp through hole. The insertion rod is provided with a plurality of through holes, and balls are arranged in the through holes. The diameter of the through holes gradually increases toward the direction close to the upper clamp through hole along the cross section of the upper clamp assembly. The upper clamp through hole includes a third through hole, a fourth through hole, and a step. The locking assembly includes a locking rod, a top, a spring, and a locking groove. The locking groove is connected to the outer wall inclined surface of the locking rod and has a second inclined surface. The locking rod is pressed down before insertion and released after full insertion. The locking rod will move upward, and the first inclined surface and the second inclined surface will clamp and fix the ball, so that the upper clamp assembly and the lower clamp assembly cannot move, and the operation is simple.

Description

Technical Field

[0001] The invention relates to the technical field of coil winding, and in particular to a double-sided circuit board winding clamping fixture system. Background Art

[0002] Coil usually refers to a ring-shaped wire winding. The most common coil applications include: motors, inductors, transformers and loop antennas. Double-sided coils need to be wound on the coil frame by a winding machine, so the coil frame needs to be fixed during winding. The double-sided coil frame clamping fixture in the prior art generally clamps the coil frame by two upper and lower clamps, and then the winding device rotates to wind the wire on the coil frame. However, if the coil frame is clamped by only two upper and lower clamps, the fixing effect is not good and it is difficult to lock, and the coil frame is easy to move during winding. Some clamps are equipped with pneumatic locking devices, which drive the locking rod on one clamp to insert into the other clamp through the cylinder, thereby locking the two clamps to ensure the clamping effect, but the structure is relatively complex and inconvenient to operate. In addition, the double-sided circuit board coil needs to be wound on both sides. Therefore, when the upper and lower clamps clamp the coil frame, it is difficult to set the coil frame and the upper and lower clamps apart to reserve the space required for winding. Summary of the invention

[0003] In view of this, the present invention provides a double-sided circuit board winding clamping fixture system to solve the above technical problems.

[0004] A double-sided circuit board winding clamping fixture system, comprising a lower clamp assembly, an upper clamp assembly arranged on the lower clamp assembly, and a locking assembly arranged on the upper clamp assembly. The lower clamp assembly comprises a lower clamp and a lower clamp through hole arranged on the lower clamp. The lower clamp through hole comprises a first through hole, a second through hole, and a first inclined surface connecting the first through hole and the second through hole. The diameter of the second through hole is larger than the diameter of the first through hole, and the first inclined surface is located at the connection between the first through hole and the second through hole. The upper clamp assembly comprises an upper clamp, an insertion rod arranged on the pressure block cylinder, and an upper clamp through hole arranged on the upper clamp. The insertion rod is inserted into the lower clamp through hole, and a plurality of through holes arranged circumferentially are provided on the insertion rod, each of the through holes is provided with a ball, and the through hole is connected to the upper clamp through hole. The diameter of the through hole gradually increases in the direction close to the upper clamp through hole along the cross section of the upper clamp assembly. The upper fixture through hole includes a third through hole, a fourth through hole connected to the third through hole, and a step located at the connection between the third through hole and the fourth through hole. The diameter of the third through hole is smaller than the diameter of the fourth through hole. The locking assembly includes a locking rod inserted into the upper fixture through hole, a top portion arranged at one end of the locking rod, a spring sleeved on the locking rod, and a locking groove arranged at the other end of the locking rod. One end of the spring abuts against the top portion, and the other end abuts against the step. The locking groove is annularly arranged on the outer side wall of the locking rod, and the locking groove is connected to the inclined surface of the outer side wall of the locking rod and has a second inclined surface. The first inclined surface and the second inclined surface clamp and fix the ball to fix the first fixture assembly and the second fixture assembly.

[0005] Furthermore, the lower clamp assembly also includes a base cylinder arranged on the lower clamp and a lower clamping cylinder arranged on the lower clamp. The base cylinder is arranged on an end surface of the lower clamp facing the upper clamp assembly, and the lower clamping cylinder is arranged on an end surface away from the upper clamp assembly.

[0006] Furthermore, one end of the base cylinder connected to the lower clamp is provided with an extension section extending in a direction away from the center of the base cylinder, and the extension section supports the coil frame.

[0007] Furthermore, a circle of first recessed grooves is provided in the middle section of the lower clamping cylinder.

[0008] Furthermore, the upper clamp assembly also includes an upper clamping cylinder arranged on the upper clamp and a pressure block cylinder arranged on the upper clamp. The pressure block cylinder is arranged on an end surface of the upper clamp facing the lower clamp assembly, and the upper clamping cylinder is arranged on an end surface away from the lower clamp assembly.

[0009] Furthermore, the upper clamp through hole passes through the upper clamp, the upper clamping cylinder, the pressing block cylinder, and the insertion rod and is coaxially arranged.

[0010] Furthermore, in a free state, the locking rod moves in a direction away from the lower clamp assembly under the elastic force of the spring.

[0011] Compared with the prior art, the base cylinder of the double-sided circuit board winding clamping fixture system provided by the present invention is provided with an extension section extending in a direction away from the center of the base cylinder at one end connected to the lower clamp, the diameter of the block cylinder is the same as the diameter of the extension section, and the extension section and the block cylinder also make the coil skeleton and the upper clamp and the lower clamp spaced apart to provide the space required for winding. The diameter of the through hole along the cross section of the upper clamp assembly gradually increases toward the direction close to the upper clamp through hole, and the locking rod is pressed down before insertion, and the ball will roll under the action of the inclined inner wall of the through hole to avoid getting stuck. After full insertion, only the locking rod needs to be released, and the locking rod will move in a direction away from the lower clamp assembly under the action of the spring, and the first inclined surface and the second inclined surface will clamp and fix the ball so that the upper clamp assembly and the lower clamp assembly cannot move, which is simple to operate, and only the locking rod needs to be pressed down at the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a double-sided circuit board winding clamping fixture system provided by the present invention.

[0013] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the double-sided circuit board winding clamping fixture system.

[0014] Figure 3 for Figure 2 Cross-sectional view of the double-sided circuit board winding clamping system.

[0015] Figure 4 for Figure 1 Cross-sectional view of the double-sided circuit board winding clamping system.

[0016] Figure 5 for Figure 4 An enlarged schematic diagram of the double-sided circuit board winding clamping fixture system A. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0018] like Figures 1 to 5 As shown, it is a schematic diagram of the structure of the double-sided circuit board winding clamping fixture system provided by the present invention. The double-sided circuit board winding clamping fixture system includes a lower clamp component 10, an upper clamp component 20 arranged on the lower clamp component 10, and a locking component 30 arranged on the upper clamp component 20. It can be imagined that the double-sided circuit board winding clamping fixture system also includes some other functional modules, such as a clamping component, a moving component, etc., which are well known to those skilled in the art and will not be repeated here.

[0019] First of all, it should be explained that the double-sided circuit board winding clamping fixture system is used to clamp the coil skeleton 100 during winding. The coil skeleton 100 is suitable for double-sided circuit board coils, which should be the existing technology and will not be described in detail.

[0020] The lower clamp assembly 10 includes a lower clamp 11 , a base cylinder 12 disposed on the lower clamp 11 , a lower clamping cylinder 13 disposed on the lower clamp 11 , and a lower clamp through hole 14 disposed on the lower clamp 11 .

[0021] The lower fixture 11 is cylindrical, and the diameter of the lower fixture 11 is larger than the diameter of the base cylinder 12 and the lower clamping cylinder 13 and is coaxially arranged. In this embodiment, the diameter of the lower fixture 11 is the same as the diameter of the coil skeleton 100, and the lower fixture 11 is used to limit the position of the wound wire with the coil skeleton 100. The base cylinder 12 is arranged on one end face of the lower fixture 11 facing the upper fixture assembly 20, and the lower clamping cylinder 13 is arranged on one end face away from the upper fixture assembly 20.

[0022] One end of the base cylinder 12 is connected to the lower fixture 11 , and the diameter of the base cylinder 12 is the same as the inner diameter of the coil skeleton 100 , so that the coil skeleton 100 can be sleeved on the base cylinder 12 .

[0023] One end of the base cylinder 12 connected to the lower clamp 11 is provided with an extension section 121 extending in a direction away from the center of the base cylinder 12. After the coil skeleton 100 is sleeved on the base cylinder 12, the extension section 121 will support the coil skeleton 100, so that the coil skeleton 100 is spaced apart from the lower clamp 11 to provide the space required for winding.

[0024] The lower clamping cylinder 13 is used to connect with an external clamping device. In order to better connect with the external clamping device, a circle of recessed first grooves 131 are provided in the middle section of the lower clamping cylinder 13. The external clamping device clamps the first grooves 131 to fix the lower clamping assembly 10.

[0025] The lower fixture through hole 14 is set through the lower fixture 11, the base cylinder 12, and the lower clamping cylinder 13 and is coaxially arranged. The lower fixture through hole 14 includes a first through hole 141, a second through hole 142, and a first inclined surface 143 connecting the first through hole 141 and the second through hole 142. The first through hole 141 is located on the side of the lower fixture assembly 10 close to the upper fixture assembly 20, the diameter of the second through hole 142 is larger than the diameter of the first through hole 141, and the first inclined surface 143 is located at the connection between the first through hole 141 and the second through hole 142. The first inclined surface 143 clamps the upper fixture assembly 20, and the specific description will be explained together below.

[0026] The upper clamp assembly 20 includes an upper clamp 21, an upper clamping cylinder 22 arranged on the upper clamp 21, a pressing block cylinder 23 arranged on the upper clamp 21, an insertion rod 24 arranged on the pressing block cylinder 23, and an upper clamp through hole 25 arranged on the upper clamp 21.

[0027] The upper fixture 21 is cylindrical, and its diameter is the same as that of the lower fixture 11 and they are coaxially arranged. The upper fixture 21 is provided with the pressing block cylinder 23 on one end surface facing the lower fixture assembly 10, and the upper clamping cylinder 22 on one end surface away from the lower fixture assembly 10.

[0028] The structure of the upper clamping cylinder 22 is the same as that of the lower clamping cylinder 13 , which will not be described in detail. The upper clamping cylinder 22 is used to connect with an external clamping device to clamp the upper clamp assembly 20 .

[0029] The diameter of the pressing block cylinder 23 is the same as the diameter of the extension section 121, so that when clamped, the pressing block cylinder 23 can be pressed on the top surface of the coil frame 100 and fixed to prevent the coil frame 100 from moving. The pressing block cylinder 23 also allows the coil frame 100 to be spaced apart from the upper clamp 21 to provide the space required for winding.

[0030] The insertion rod 24 is inserted into the lower clamp through hole 14. The insertion rod 24 is provided with a plurality of through holes 241 arranged circumferentially, and a ball 242 is provided in each of the through holes 241. The through hole 241 is connected to the upper clamp through hole 25. The diameter of the through hole 241 gradually increases toward the direction close to the upper clamp through hole 25 along the cross section of the upper clamp assembly 20, so that the ball 242 will roll toward the upper clamp through hole 25 in a free state to unlock. The specific description will be described below in conjunction with the locking assembly 30. The ball 242 rolls in the through hole 241 and will not fall out of the through hole 241. In order to prevent the ball 242 from falling out of the through hole 241, the orifices on both sides of the through hole 241 will be knocked, which should be a prior art and will not be described in detail.

[0031] The upper fixture through hole 25 passes through the upper fixture 21 , the upper clamping cylinder 22 , the pressing block cylinder 23 , and the insert rod 24 and is coaxially arranged.

[0032] The upper clamp through hole 25 includes a third through hole 251, a fourth through hole 252 communicating with the third through hole 251, and a step 253 located at the connection between the third through hole 251 and the fourth through hole 252. The third through hole 251 is located on a side of the upper clamp assembly 20 close to the lower clamp assembly 10, and the diameter of the third through hole 251 is smaller than the diameter of the fourth through hole 252, thereby forming the step 253. The step 253 is used for the locking assembly 30 to cooperate, and the specific description will be described together below.

[0033] The locking assembly 30 includes a locking rod 31 inserted into the upper clamp through hole 25, an abutment top 32 arranged at one end of the locking rod 31, a spring 33 sleeved on the locking rod 31, and a locking groove 34 arranged at the other end of the locking rod 31.

[0034] One end of the spring 33 abuts against the abutting portion 32, and the other end abuts against the step 253. In a free state, the locking rod 31 moves in a direction away from the lower clamp assembly 10 by the elastic force of the spring 33.

[0035] The locking groove 34 is disposed on the outer side wall of the locking rod 31 . The locking groove 34 is connected to the inclined surface of the outer side wall of the locking rod 31 and has a second inclined surface 341 .

[0036] The locking groove 34 is used to accommodate part of the ball 242. When locked, the second inclined surface 341 and the first inclined surface 142 clamp the ball 242. Specifically, when clamping and fixing the coil frame 100, the coil frame 100 is first placed on the extension section 12. Then the upper clamp assembly 20 is inserted into the lower clamp through hole 14, and the locking rod 31 is pressed down during the insertion. The locking groove 34 moves downward, and the ball 242 rolls under the action of the inclined inner wall of the through hole 241, so that part of the ball 242 enters the locking groove 34, and the other part is located in the through hole 241, so that the ball 242 will not be stuck in the lower clamp through hole 14. After the pressing block cylinder 23 presses the coil frame 100, the locking rod 31 is released, and the locking rod 31 moves away from the lower clamp assembly 10 under the action of the spring 32, and the first inclined surface 142 and the second inclined surface 341 clamp and fix the ball 242, so that the upper clamp assembly 20 and the lower clamp assembly 30 cannot move, and the locking process is simple. When the winding is completed and unlocking is required, it is only necessary to press down the locking rod 31 so that the second inclined surface 341 will not clamp the ball 242, and the ball 242 will roll back into the locking groove 34, and then the upper clamp assembly 30 can be directly pulled out.

[0037] Compared with the prior art, the end of the base cylinder 12 connected to the lower clamp 11 of the double-sided circuit board winding clamping fixture system provided by the present invention is provided with a circle of extension section 121 extending in the direction away from the center of the base cylinder 12, the diameter of the block cylinder 23 is the same as the diameter of the extension section 121, and the extension section 121 and the block cylinder 23 also make the coil skeleton 100 and the upper clamp 21 and the lower clamp 11 spaced apart to provide the space required for winding. On the cross section along the upper clamp assembly 20, the diameter of the through hole 241 gradually increases toward the direction close to the upper clamp through hole 25. When the locking rod 31 is pressed down before insertion, the ball 242 will roll under the action of the inclined inner wall of the through hole 241 to avoid getting stuck. After full insertion, you only need to release the locking rod 31. The locking rod 31 will move away from the lower clamp assembly 10 under the action of the spring 32. The first bevel 142 and the second bevel 341 will clamp and fix the ball 242 to prevent the upper clamp assembly 20 and the lower clamp assembly 30 from moving. The operation is simple and you only need to press down the locking rod 31 when finished.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A double-sided circuit board winding clamping fixture system, characterized in that: The double-sided circuit board winding clamping fixture system includes a lower clamp component, an upper clamp component arranged on the lower clamp component, and a locking component arranged on the upper clamp component. The lower clamp component includes a lower clamp, a base cylinder arranged on the lower clamp, a lower clamping cylinder arranged on the lower clamp, and a lower clamp through hole arranged on the lower clamp. The lower clamp is provided with the base cylinder on one end face facing the upper clamp component, and the lower clamping cylinder is provided on one end face away from the upper clamp component. The end of the base cylinder connected to the lower clamp is provided with a circle facing away from the base cylinder. An extension section extending in the direction of the center of the seat cylinder, the extension section will support the coil skeleton, the lower fixture through hole includes a first through hole, a second through hole, and a first inclined surface connecting the first through hole and the second through hole, the diameter of the second through hole is larger than the diameter of the first through hole, the first inclined surface is located at the connection between the first through hole and the second through hole, the upper fixture assembly includes an upper fixture, an upper clamping cylinder arranged on the upper fixture, a pressure block cylinder arranged on the upper fixture, an insertion rod arranged on the pressure block cylinder, and an upper fixture through hole arranged on the upper fixture, the upper fixture faces the lower fixture The pressure block cylinder is arranged on one end face of the clamp assembly, and the upper clamping cylinder is arranged on one end face away from the lower clamp assembly, the diameter of the pressure block cylinder is the same as the diameter of the extension section, the insertion rod is inserted into the through hole of the lower clamp, and the insertion rod is provided with a plurality of through holes arranged circumferentially, each of the through holes is provided with a ball, the through hole is connected with the through hole of the upper clamp, and the diameter of the through hole gradually increases toward the direction close to the through hole of the upper clamp on the cross section of the upper clamp assembly, and the through hole of the upper clamp includes a third through hole, a fourth through hole connected with the third through hole, and a through hole located at the connection between the third through hole and the fourth through hole. The step, the diameter of the third through hole is smaller than the diameter of the fourth through hole, the locking assembly includes a locking rod inserted into the through hole of the upper clamp, a top portion arranged at one end of the locking rod, a spring sleeved on the locking rod, and a locking groove arranged at the other end of the locking rod, one end of the spring abuts against the top portion, and the other end abuts against the step, the locking groove is annularly arranged on the outer side wall of the locking rod, the locking groove is connected to the inclined surface of the outer side wall of the locking rod and has a second inclined surface, the first inclined surface and the second inclined surface clamp and fix the ball to fix the upper clamp assembly and the lower clamp assembly.

2. The double-sided circuit board winding clamping fixture system according to claim 1, characterized in that: The lower fixture through hole is arranged through the lower fixture, the base cylinder, and the lower clamping cylinder and is coaxially arranged.

3. The double-sided circuit board winding clamping fixture system according to claim 1, characterized in that: The middle section of the lower clamping cylinder is provided with a circle of first grooves which are recessed.

4. The double-sided circuit board winding clamping fixture system according to claim 1, characterized in that: The upper clamp through hole passes through the upper clamp, the upper clamping cylinder, the pressing block cylinder, and the insertion rod and is coaxially arranged.

5. The double-sided circuit board winding clamping fixture system according to claim 1, characterized in that: In a free state, the locking rod moves in a direction away from the lower clamp assembly under the elastic force of the spring.

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