Left-right clamping type glass substrate PCB clamp

Abstract

The utility model discloses a left and right clamping type glass substrate PCB clamp, which comprises a frame and a plurality of clamping pieces arranged on the left side and the right side of the frame, each clamping piece comprises a lower clamping point fixedly arranged on the frame, an upper clamping point hinged to the lower clamping point and a pressing hook connected with the lower clamping point and the upper clamping point, the middle section of the lower clamping point is hinged to the middle section of the upper clamping point, the front end of the lower clamping point and the front end of the upper clamping point are clamping faces, the clamping faces of the lower clamping point and the upper clamping point are pressed by the pressing hook, and the clamping faces are clamped on ineffective areas on the left side and the right side of a PCB. According to the utility model, the clamping pieces are arranged on the left side and the right side of the frame, so that the clamping surfaces of the lower clamping points and the upper clamping points of the clamping pieces are clamped on the ineffective areas on the left side and the right side of the PCB, and residual liquid medicine on the clamping surfaces cannot vertically flow to the effective area of the board surface of the PCB in the board manufacturing process; and the residual liquid medicine is prevented from damaging the circuit on the board surface of the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic production and processing of PCB boards, in particular to a left-right clamping type glass substrate PCB clamp. Background Art

[0002] For vertical wet process equipment, the clamp plays an important role in fixing and supporting the carrier. Its stability affects the final effect of board making and is an important functional component in vertical equipment. The existing vertical clamp mainly clamps the carrier on the upper and lower sides, and the clamping points usually have a more complex structure. When the upper and lower clamping method is adopted, after the board surface is sprayed with liquid medicine, washed with water, and blown dry, a certain amount of residual liquid medicine is likely to remain in the gap. The liquid medicine flows to the effective area of ​​the board surface under the action of gravity, causing damage to the circuit of the PCB board surface, affecting the uniformity of board making, and in severe cases, it will directly lead to serious defects and scrap boards.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a left-right clamping glass substrate PCB clamp.

[0005] The technical solution of the utility model is as follows: a left-right clamping glass substrate PCB clamp is provided, comprising: a frame, and a plurality of clamping members arranged on the left and right sides of the frame, wherein the clamping members comprise: a lower clamping point fixedly arranged on the frame, an upper clamping point hinged on the lower clamping point, and a pressing hook connecting the lower clamping point and the upper clamping point, wherein the middle sections of the lower clamping point and the upper clamping point are hinged, the front ends of the lower clamping point and the upper clamping point are clamping surfaces, the pressing hook presses the clamping surfaces of the lower clamping point and the upper clamping point, and the clamping surfaces are clamped on the invalid areas on the left and right sides of the PCB board.

[0006] Furthermore, a U-shaped opening is provided at the clamping surface corresponding to the front section of the lower clamping point and the upper clamping point.

[0007] Furthermore, the clamping surface of the upper clamping point is an arc-shaped surface.

[0008] Furthermore, the clamping surface of the lower clamping point and / or the upper clamping point is provided with a toothed structure.

[0009] Furthermore, the clamping surfaces of the lower clamping point and / or the upper clamping point are coated with an elastomer, and the elastomer is made of corrosion-resistant rubber material.

[0010] Furthermore, the cross section of the front end of the upper clamping point is a trapezoidal structure that is wide at the top and narrow at the bottom.

[0011] Further, a groove is provided on the upper clamping point. One end of the pressing hook is fixed to the lower clamping point, and the other end of the pressing hook is embedded in the groove. The pressing hook is made of stainless steel spring wire material.

[0012] Further, the frame includes drive shaft rods provided at the upper and lower ends, and mounting shaft rods provided at the left and right ends. The connection between the drive shaft rods and the mounting shaft rods is fixed by welding or screws. A connection platform is provided on the lower clamping point of the clamping member, and a connection hole is provided on the connection platform. The lower clamping point is locked to the mounting shaft rod by a screw passing through the connection hole.

[0013] Further, the drive shaft rods and the mounting shaft rods are made of materials resistant to corrosion by acid and alkali solutions.

[0014] With the above solution, in the present utility model, by arranging the clamping members on the left and right sides of the frame, the clamping surfaces of the lower clamping points and the upper clamping points of the clamping members are clamped on the invalid areas on the left and right sides of the PCB board, so that the residual liquid medicine at the clamping surface will not flow vertically towards the effective area of the PCB board surface during the board manufacturing process, avoiding damage to the circuit on the PCB board surface caused by the residual liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is a schematic structural diagram of the clamping member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Please refer to Figure 1 、 Figure 2 , the present utility model provides a left and right clamping type glass substrate PCB fixture, including: a frame 1, and a plurality of clamping members 2 provided on the left and right sides of the frame 1. The clamping member 2 includes: a lower clamping point 21 fixedly provided on the frame 1, an upper clamping point 22 hinged to the lower clamping point 21, and a pressing hook 23 connecting the lower clamping point 21 and the upper clamping point 22. The middle sections of the lower clamping point 21 and the upper clamping point 22 are hinged, the front ends of the lower clamping point 21 and the upper clamping point 22 are clamping surfaces, the pressing hook 23 presses the clamping surfaces of the lower clamping point 21 and the upper clamping point 22, and the clamping surfaces are clamped on the invalid areas on the left and right sides of the PCB board.

[0019] The clamping members 2 are arranged on the left and right sides of the frame 1, and the clamping surfaces of the lower clamping points 21 and the upper clamping points 22 of the clamping members 2 are clamped on the invalid areas on the left and right sides of the PCB board, so that the residual liquid medicine at the clamping surface will not flow vertically to the effective area of the PCB board surface during the board manufacturing process, avoiding damage to the circuit lines on the PCB board surface caused by the residual liquid medicine.

[0020] In some embodiments, a U-shaped opening 221 is provided at the corresponding clamping surface of the front sections of the lower clamping points 21 and the upper clamping points 22. In some embodiments, the width of the U-shaped opening 221 is 3 - 8 mm. By providing the U-shaped opening 221 at the front ends of the lower clamping points 21 and the upper clamping points 22, the contact area between the clamping surfaces of the lower clamping points 21 and the upper clamping points 22 and the PCB board surface is reduced, thereby improving the water washing and air drying effects.

[0021] In some embodiments, the clamping surface of the upper clamping point 22 is an arc surface 222, reducing the contact area between the clamping surface of the upper clamping point 22 and the PCB board surface, thereby improving the water washing and air drying effects. In some embodiments, the radius of the arc surface 222 is 5 - 16 mm. While reducing the contact area between the upper clamping point 22 and the PCB board surface, the clamping effect on the PCB board is ensured, avoiding the situation that the clamping state is unstable due to too small a clamping area.

[0022] In some embodiments, a toothed structure 211 is provided on the clamping surface of the lower clamping point 21 and / or the upper clamping point 22, and whether to configure the toothed structure 211 can be selected according to different working conditions. When the thickness of the PCB board is greater than 3 mm, generally, the toothed structure 211 is provided on the clamping surface of the lower clamping point 21 and / or the upper clamping point 22 to increase the friction force and prevent the PCB board from slipping or falling off. When the thickness of the PCB board is less than 2 mm, generally, the toothed structure 211 does not need to be provided and the PCB board can be stably clamped.

[0023] In some embodiments, an elastomer is coated on the clamping surface of the lower clamping point 21 and / or the upper clamping point 22, thereby increasing the frictional resistance for the lower clamping point 21 and the upper clamping point 22 to clamp the PCB board, while avoiding pressing damage to the PCB board surface by the clamping surface. In some embodiments, the thickness of the elastomer is in the range of 0.5 - 2 mm, avoiding too large a thickness from affecting the clamping effect between the lower clamping point 21 and the upper clamping point 22; the hardness of the elastomer is in the range of Shore hardness HA50 - 80, thereby effectively avoiding pressing damage or scratches to the PCB board surface. The elastomer adopts a corrosion-resistant rubber material. Specifically, materials such as polytetrafluoroethylene PTFE or fluororubber FPM are used, which can ensure that it is not damaged by liquid medicine corrosion and improve the overall service life.

[0024] In some embodiments, the cross-section of the front end of the upper clamping point 22 is a trapezoidal structure that is wider at the top and narrower at the bottom, which is conducive to allowing fluid to enter the middle part between the lower clamping point 21 and the upper clamping point 22 during water washing or air drying, thereby reducing the residual amount of the liquid medicine and improving the air drying effect.

[0025] In some embodiments, a groove 223 is provided on the upper clamping point 22. One end of the pressing hook 23 is fixed to the lower clamping point 21, and the other end of the pressing hook 23 is embedded in the groove 223. The pressing hook 23 is made of stainless steel spring wire material. The width of the groove 223 is slightly larger than the diameter of the pressing hook 23, and the groove 223 plays a guiding role for the end of the pressing hook 23. The pressing hook 23 is a member that provides elastic deformation. When pressing the rear ends of the lower clamping point 21 and the upper clamping point 22, the pressing hook 23 undergoes elastic deformation, and the clamping surfaces at the front ends of the lower clamping point 21 and the upper clamping point 22 are opened, facilitating the clamping of the PCB board. When releasing the rear ends of the lower clamping point 21 and the upper clamping point 22, under the elastic force of the pressing hook 23, the end of the pressing hook 23 presses tightly against the groove 223 of the upper clamping point 22, thereby pressing the front end of the upper clamping point 22 tightly against the front end of the lower clamping point 21, so as to achieve the clamping and fixing of the PCB board.

[0026] In some embodiments, the frame 1 includes: drive shaft rods 11 provided at the upper and lower ends, and mounting shaft rods 12 provided at the left and right ends. The connection between the drive shaft rods 11 and the mounting shaft rods 12 is fixedly connected by welding or screws. A connection platform is provided on the lower clamping point 21 of the clamping member 2, and a connection hole is provided on the connection platform. The lower clamping point 21 is locked to the mounting shaft rod 12 by screws passing through the connection hole. The mounting shaft rod 12 is provided with a mounting plane corresponding to the connection platform. The overall flatness of the mounting plane is less than 0.05 mm, the flatness of adjacent mounting planes is less than 0.02 mm, and the flatness of symmetrically located mounting planes is less than 0.02 mm, so as to ensure that after each clamping member 2 is mounted on the mounting shaft rod 12, its clamping surface can be kept on the same plane, avoiding damage to the PCB board or affecting the clamping effect on the PCB board due to deviation of the flatness.

[0027] In some embodiments, the drive shaft rods 11 and the mounting shaft rods 12 are made of materials resistant to corrosion by acid-base solution. Specifically, they are made of materials such as stainless steel SUS304 and SUS316, which can ensure that they are not damaged by corrosion of the liquid medicine and improve the overall service life.

[0028] In summary, in the present utility model, by arranging the clamping member 2 in the left and right directions of the frame 1, the clamping surfaces of the lower clamping point 21 and the upper clamping point 22 of the clamping member 2 are clamped on the ineffective areas on the left and right sides of the PCB board, so that the residual liquid medicine at the clamping surface does not flow vertically towards the effective area of the PCB board surface during the board manufacturing process, avoiding damage to the circuit on the PCB board surface caused by the residual liquid medicine.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A left-right clamping glass substrate PCB fixture, characterized in that: include: A frame, and a plurality of clamping members arranged on the left and right sides of the frame, wherein the clamping members include: a lower clamping point fixedly arranged on the frame, an upper clamping point hinged on the lower clamping point, and a pressing hook connecting the lower clamping point and the upper clamping point, the middle sections of the lower clamping point and the upper clamping point are hinged, the front ends of the lower clamping point and the upper clamping point are clamping surfaces, the pressing hook presses the clamping surfaces of the lower clamping point and the upper clamping point, and the clamping surfaces are clamped on the invalid areas on the left and right sides of the PCB board.

2. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: A U-shaped opening is provided at the clamping surface corresponding to the front section of the lower clamping point and the upper clamping point.

3. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: The clamping surface of the upper clamping point is an arc-shaped surface.

4. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: The clamping surface of the lower clamping point and / or the upper clamping point is provided with a toothed structure.

5. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: The clamping surfaces of the lower clamping point and / or the upper clamping point are coated with an elastomer, and the elastomer is made of corrosion-resistant rubber material.

6. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: The cross section of the front end of the upper clamping point is a trapezoidal structure that is wide at the top and narrow at the bottom.

7. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: A groove is arranged on the upper clamping point, one end of the pressing hook is fixed on the lower clamping point, and the other end of the pressing hook is embedded in the groove, and the pressing hook is made of stainless steel spring wire material.

8. The left-right clamping glass substrate PCB fixture according to claim 1, characterized in that: The frame includes: a transmission shaft rod arranged at the upper and lower ends, and a mounting shaft rod arranged at the left and right ends. The connection between the transmission shaft rod and the mounting shaft rod is connected and fixed by welding or screws. A connecting platform is arranged on the lower clamping point of the clamping member, and a connecting hole is arranged on the connecting platform. The lower clamping point is locked on the mounting shaft rod by screws passing through the connecting hole.

9. The left-right clamping glass substrate PCB fixture according to claim 8, characterized in that: The transmission shaft and the installation shaft are made of materials resistant to corrosion by acid and alkali solutions.

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