Surface treatment device for circuit board

Abstract

The utility model discloses a surface treatment device for a circuit board, which comprises a machine body, a tin immersion cavity is arranged on one side of the machine body, a bearing assembly is arranged in the tin immersion cavity, the bearing assembly comprises a first supporting plate and a second supporting plate, the top of the first supporting plate is connected with the top of the second supporting plate in an inserted manner, a lifting screw is arranged on the upper surface of the first supporting plate, and a lifting screw is arranged on the lower surface of the second supporting plate. A sealing cover is arranged at an opening in the top end of the tin immersion cavity, the lifting screw rod is in threaded connection with the sealing cover, and the lifting screw rod can drive the bearing assembly to move up and down. The bearing assembly is arranged in the tin immersion cavity of the machine body, the bearing assembly can bear a plurality of circuit boards at a time, the bearing assembly is connected with the sealing cover through the lifting screw rod, the bearing assembly can be conveniently driven to conduct height adjustment, and the bearing assembly can conveniently carry the circuit boards to sink to the specified depth in a chemical solution for tin immersion; and the use flexibility of the whole tin immersion equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a surface treatment device for a circuit board. Background Art

[0002] The surface of the circuit board refers to the part that is not covered by solder mask ink, such as pads, hole rings, cursor points, and even large copper surfaces. The copper surface is exposed in the area not covered by solder mask ink, and the copper surface is very easy to be oxidized. Therefore, the surface of the circuit board needs to be treated during the production and processing of the circuit board.

[0003] There are many methods for processing the surface of a circuit board, such as tin spraying, tin sinking and surface coating. In the prior art, the Chinese patent authorization announcement number CN219164833U discloses a surface treatment device for circuit board manufacturing, including a coating box, two sets of extrusion rollers are rotatably connected inside the coating box, and the two ends of the extrusion rollers are rotatably connected to a rotating rod, the outer side of the rotating rod is fixedly connected to a fixed sleeve, the side of the fixed sleeve is fixedly connected to a positioning rod, the outer sleeve of the positioning rod is sleeved and connected to a positioning sleeve, a spring is arranged inside the positioning sleeve, and the other end of the spring is fixedly connected to the positioning rod, and the side wall of the coating box is fixedly connected to a limit plate, and a limit slot is provided on the inner side of the limit plate, and the other end of the rotating rod is arranged inside the limit slot. This surface treatment device for circuit board manufacturing essentially provides a device for coating the surface of a circuit board, which solves the problem that bubbles are easily generated during the coating process of the circuit board, and the existing coating device cannot discharge the bubbles, and needs to be re-coated, resulting in low coating efficiency.

[0004] In addition to the coating device provided by the above patent, there is also a device for immersion tinning the surface of the circuit board. The existing device for immersion tinning the surface of the circuit board needs to use a clamp to clamp the circuit board and sink it into the immersion tinning device. However, since the circuit board needs to be supported, it is more troublesome to disassemble and assemble the circuit board, and the position where the circuit board is clamped cannot be effectively immersion tinned. Utility Model Content

[0005] The utility model aims to provide a surface treatment device for a circuit board, aiming to improve the problem that the existing device for tinning the surface of the circuit board needs to clamp the circuit board, which makes the disassembly and assembly of the circuit board more troublesome, and the position where the circuit board is clamped cannot be effectively tinned.

[0006] The utility model is achieved in this way:

[0007] A surface treatment device for a circuit board comprises a body, a tinning cavity is provided on one side of the body, a supporting assembly is provided inside the tinning cavity, the supporting assembly comprises a first support plate and a second support plate, the first support plate and the second support plate are plugged and connected at the top, and a lifting screw is provided on the upper surface of the first support plate, a cover is provided on the top opening of the tinning cavity, the lifting screw and the cover are threadedly connected, and the lifting screw can drive the supporting assembly to move up and down.

[0008] Preferably, the bottom corners of the body are provided with supporting feet, one side of the upper surface of the body is provided with a control panel, the control panel is used to control the entire tinning equipment, and a drain valve is provided on the side of the body aligned with the bottom of the tinning chamber.

[0009] Preferably, a plurality of limiting grooves are evenly provided on the opposite sides of the first and second support plates, and the limiting grooves are used to limit the front and rear ends of the circuit board; the first and second support plates are provided with supporting bottom edges at the positions aligned with the limiting grooves at the bottom, and the supporting bottom edges are used to support the bottom of the circuit board.

[0010] Preferably, a plurality of connecting rods are evenly arranged on the top of the first pallet, an insert plate is provided on the top of the second pallet aligned with the connecting rod, a slot is provided on the connecting rod aligned with the insert plate, the insert plate is inserted into the slot, a clamping knob is provided on the upper surface of the connecting rod aligned with the slot, the clamping knob is used to fix the distance between the first pallet and the second pallet, an adapter is provided on the upper surface of the connecting rod in the middle of the top end of the first pallet, a bearing is provided in the middle of the adapter, and the adapter cooperates with the bearing to be rotatably connected to the lifting screw.

[0011] Preferably, a connecting shaft is provided at the bottom end of the lifting screw, a rotating handle is provided at the top end of the lifting screw, a crank is provided at the top edge of the rotating handle, and the crank cooperates with the rotating handle to rotate the lifting screw.

[0012] Preferably, an insert ring is provided at the bottom end of the cover, and the insert ring is used to be inserted into the tin sinking cavity. Handles are symmetrically provided on both sides of the upper surface of the cover, and a threaded hole is provided in the middle of the cover, and the threaded hole is used to be threadedly connected to the lifting screw.

[0013] Preferably, a clamping assembly is provided on the top of the first support plate and the second support plate, and the clamping assembly includes two clamping blocks and a bidirectional screw. The clamping block is L-shaped, and a connecting plate is provided at one end of the clamping block that is close to each other. Two threads in different directions on the bidirectional screw are respectively threadedly connected to the connecting plates of the two clamping blocks, and limiting end plates are provided at both ends of the bidirectional screw, and a rotating handle is provided in the middle of the bidirectional screw.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A supporting assembly is provided inside the tinning chamber of the machine body. The supporting assembly can support multiple circuit boards at one time, and the supporting assembly is connected to the cover through a lifting screw, which facilitates the supporting assembly to be adjusted in height, and facilitates the supporting assembly to carry the circuit board to the specified depth in the chemical solution of tinning, effectively improving the flexibility of the entire tinning equipment.

[0016] 2. A clamping assembly is installed on the top of the supporting assembly, which can ensure that the supporting assembly can further clamp the circuit board, thereby facilitating the circuit board to be stabilized inside the clamping assembly and facilitating tinning of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the supporting assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lifting screw rod of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the sealing cover of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the clamping assembly of the utility model.

[0023] In the figure: 1. body; 11. support foot; 12. control panel; 13. tinning chamber; 14. drain valve; 2. supporting assembly; 21. first support plate; 211. limiting groove; 212. supporting bottom edge; 213. connecting rod; 214. slot; 215. clamping knob; 216. adapter; 217. bearing; 22. second support plate; 221. plug plate; 3. lifting screw; 31. connecting shaft; 32. rotating handle; 33. crank; 4. cover; 41. insert ring; 42. handle; 43. threaded hole; 5. clamping assembly; 51. clamping block; 511. connecting plate; 52. two-way screw; 521. limiting end plate; 522. rotating grip. DETAILED DESCRIPTION

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1 and Figure 2 As shown, a surface treatment device for a circuit board includes a body 1, and a tinning chamber 13 is provided on one side of the body 1. The tinning chamber 13 is used to perform tinning chemical treatment on the circuit board. A supporting assembly 2 is provided inside the tinning chamber 13. The supporting assembly 2 is used to support the circuit board, so that the circuit board can be stabilized inside the tinning chamber 13. The supporting assembly 2 includes a first support plate 21 and a second support plate 22. The first support plate 21 and the second support plate 22 are plugged and connected at the top. The first support plate 21 and the second support plate 22 are used to support circuit boards of different sizes, and a lifting screw 3 is provided on the upper surface of the first support plate 21. A cover 4 is provided at the top opening of the tinning chamber 13. The cover 4 is used to block the top opening of the tinning chamber 13. The lifting screw 3 and the cover 4 are threadedly connected, and the lifting screw 3 can drive the supporting assembly 2 to move up and down.

[0028] like Figure 2 As shown, the bottom corners of the body 1 are provided with legs 11, which facilitate the body 1 to be stably placed on the ground. A control panel 12 is provided on one side of the upper surface of the body 1, and the control panel 12 is used to control the entire tinning equipment. A drain valve 14 is provided on the side of the body 1 aligned with the bottom of the tinning chamber 13, and the drain valve 14 is convenient for controlling the discharge of chemical reagents inside the tinning equipment.

[0029] like Figure 3As shown, a plurality of limiting grooves 211 are evenly arranged on the opposite side of the first support plate 21 and the second support plate 22. The limiting grooves 211 are used to limit the front and rear ends of the circuit board, so as to facilitate the circuit board to be stabilized between the first support plate 21 and the second support plate 22; a supporting bottom edge 212 is arranged at the position where the bottom of the first support plate 21 and the second support plate 22 are aligned with the limiting grooves 211, and the supporting bottom edge 212 is used to support the bottom of the circuit board. A plurality of connecting rods 213 are evenly arranged on the top of the first support plate 21, and a plug-in plate 221 is arranged at the position where the connecting rod 213 is aligned with the plug-in plate 221. A slot 214 is arranged at the position where the connecting rod 213 is aligned with the plug-in plate 221, and the plug-in plate 221 is inserted into the slot 214. The connecting rod 213 cooperates with the plug-in plate 221 to facilitate the plug-in connection between the first support plate 21 and the second support plate 22. A clamping knob 215 is provided on the upper surface of the connecting rod 213 at a position aligned with the slot 214. The clamping knob 215 is used to fix the distance between the first support plate 21 and the second support plate 22. An adapter 216 is provided on the upper surface of the connecting rod 213 in the middle of the top of the first tray. A bearing 217 is provided in the middle of the adapter 216. The adapter 216 cooperates with the bearing 217 to be rotatably connected to the lifting screw 3, so that the lifting screw 3 can drive the supporting assembly 2 to move up and down.

[0030] like Figure 4 As shown, the bottom end of the lifting screw 3 is provided with a connecting shaft 31, and the connecting shaft 31 is convenient for connecting the lifting screw 3 with the bearing 217. The top of the lifting screw 3 is provided with a rotating handle 32, and the top edge of the rotating handle 32 is provided with a crank 33, and the crank 33 cooperates with the rotating handle 32 to rotate the lifting screw 3, so that the lifting screw 3 drives the supporting assembly 2 to move up and down.

[0031] like Figure 5 As shown, the bottom of the cover 4 is provided with an insert ring 41, which is used to be inserted into the tin sinking cavity 13, and handles 42 are symmetrically provided on both sides of the upper surface of the cover 4, which facilitate the disassembly and assembly of the cover 4. A threaded hole 43 is provided in the middle of the cover 4, and the threaded hole 43 is used to be threadedly connected with the lifting screw 3.

[0032] Working principle: The use is to connect the cover 4 and the lifting screw 3 according to the use requirements, and make the bottom end of the lifting screw 3 connected to the supporting assembly 2, then place the circuit boards that need to be tinned between the supporting assemblies 2 in sequence, and make the front and rear ends of the circuit boards inserted into the limiting groove 211, and after the circuit boards are placed, fix the distance between the first support plate 21 and the second support plate 22, so that the circuit boards are stable between the first support plate 21 and the second support plate 22. Then insert the structure that the supporting assembly 2, the lifting screw 3 and the cover 4 cooperate with each other into the tinning chamber 13 with chemical reagents to carry out the tinning operation. Compared with the prior art, the tinning chamber 13 of the body 1 of the present application is provided with a supporting assembly 2, and the supporting assembly 2 can support multiple circuit boards at one time, and the supporting assembly 2 is connected to the cover 4 through the lifting screw 3, which is convenient for driving the supporting assembly 2 to adjust the height, so that the supporting assembly 2 can carry the circuit board to the specified depth in the chemical solution of tinning, and effectively improve the flexibility of the use of the entire tinning equipment.

[0033] Example 2

[0034] like Figure 1 and Figure 2 As shown, a surface treatment device for a circuit board includes a body 1, and a tinning chamber 13 is provided on one side of the body 1. The tinning chamber 13 is used to perform tinning chemical treatment on the circuit board. A supporting assembly 2 is provided inside the tinning chamber 13. The supporting assembly 2 is used to support the circuit board, so that the circuit board can be stabilized inside the tinning chamber 13. The supporting assembly 2 includes a first support plate 21 and a second support plate 22. The first support plate 21 and the second support plate 22 are plugged and connected at the top. The first support plate 21 and the second support plate 22 are used to support circuit boards of different sizes, and a lifting screw 3 is provided on the upper surface of the first support plate 21. A cover 4 is provided at the top opening of the tinning chamber 13. The cover 4 is used to block the top opening of the tinning chamber 13. The lifting screw 3 and the cover 4 are threadedly connected, and the lifting screw 3 can drive the supporting assembly 2 to move up and down.

[0035] like Figure 2 As shown, the bottom corners of the body 1 are provided with legs 11, which facilitate the body 1 to be stably placed on the ground. A control panel 12 is provided on one side of the upper surface of the body 1, and the control panel 12 is used to control the entire tinning equipment. A drain valve 14 is provided on the side of the body 1 aligned with the bottom of the tinning chamber 13, and the drain valve 14 is convenient for controlling the discharge of chemical reagents inside the tinning equipment.

[0036] like Figure 3As shown, a plurality of limiting grooves 211 are evenly arranged on the opposite side of the first support plate 21 and the second support plate 22. The limiting grooves 211 are used to limit the front and rear ends of the circuit board, so as to facilitate the circuit board to be stabilized between the first support plate 21 and the second support plate 22; a supporting bottom edge 212 is arranged at the position where the bottom of the first support plate 21 and the second support plate 22 are aligned with the limiting grooves 211, and the supporting bottom edge 212 is used to support the bottom of the circuit board. A plurality of connecting rods 213 are evenly arranged on the top of the first support plate 21, and a plug-in plate 221 is arranged at the position where the connecting rod 213 is aligned with the plug-in plate 221. A slot 214 is arranged at the position where the connecting rod 213 is aligned with the plug-in plate 221, and the plug-in plate 221 is inserted into the slot 214. The connecting rod 213 cooperates with the plug-in plate 221 to facilitate the plug-in connection between the first support plate 21 and the second support plate 22. A clamping knob 215 is provided on the upper surface of the connecting rod 213 at a position aligned with the slot 214. The clamping knob 215 is used to fix the distance between the first support plate 21 and the second support plate 22. An adapter 216 is provided on the upper surface of the connecting rod 213 in the middle of the top of the first tray. A bearing 217 is provided in the middle of the adapter 216. The adapter 216 cooperates with the bearing 217 to be rotatably connected to the lifting screw 3, so that the lifting screw 3 can drive the supporting assembly 2 to move up and down.

[0037] like Figure 4 As shown, the bottom end of the lifting screw 3 is provided with a connecting shaft 31, and the connecting shaft 31 is convenient for connecting the lifting screw 3 with the bearing 217. The top of the lifting screw 3 is provided with a rotating handle 32, and the top edge of the rotating handle 32 is provided with a crank 33, and the crank 33 cooperates with the rotating handle 32 to rotate the lifting screw 3, so that the lifting screw 3 drives the supporting assembly 2 to move up and down.

[0038] like Figure 5 As shown, the bottom of the cover 4 is provided with an insert ring 41, which is used to be inserted into the tin sinking cavity 13, and handles 42 are symmetrically provided on both sides of the upper surface of the cover 4, which facilitate the disassembly and assembly of the cover 4. A threaded hole 43 is provided in the middle of the cover 4, and the threaded hole 43 is used to be threadedly connected with the lifting screw 3.

[0039] like Figure 6 As shown, a clamping assembly 5 is provided on the top of the first support plate 21 and the second support plate 22. The clamping assembly 5 includes two clamping blocks 51 and a bidirectional screw 52. The bidirectional screw 52 is used to drive the two clamping blocks 51 to move relative to or back to each other, so as to facilitate the clamping of the clamping blocks 51 on the first support plate 21 and the second support plate 22. The clamping blocks 51 are L-shaped, and a connecting plate 511 is provided at one end of the top of the clamping blocks 51 close to each other. Two threads in different directions on the bidirectional screw 52 are respectively threadedly connected with the connecting plates 511 of the two clamping blocks 51, and a limiting end plate 521 is provided at both ends of the bidirectional screw 52. The limiting end plate 521 is used to prevent the bidirectional screw 52 from being separated from the clamping block 51. A rotating handle 522 is provided in the middle of the bidirectional screw 52, ​​and the rotating handle 522 facilitates the rotation of the bidirectional screw 52.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit board surface treatment device, comprising a body (1), characterized in that: A tinning cavity (13) is provided on one side of the machine body (1), and a supporting assembly (2) is provided inside the tinning cavity (13). The supporting assembly (2) comprises a first support plate (21) and a second support plate (22). The first support plate (21) and the second support plate (22) are plugged and connected at the top, and a lifting screw (3) is provided on the upper surface of the first support plate (21). A cover (4) is provided at the top opening of the tinning cavity (13). The lifting screw (3) and the cover (4) are threadedly connected. The lifting screw (3) can drive the supporting assembly (2) to move up and down.

2. A circuit board surface treatment device according to claim 1, characterized in that: The bottom corners of the machine body (1) are provided with supporting feet (11); one side of the upper surface of the machine body (1) is provided with a control panel (12), the control panel (12) being used to control the entire tinning device; and a drain valve (14) is provided on the side of the machine body (1) aligned with the bottom of the tinning chamber (13).

3. A circuit board surface treatment device according to claim 1, characterized in that: A plurality of limiting grooves (211) are evenly arranged on opposite sides of the first support plate (21) and the second support plate (22), and the limiting grooves (211) are used to limit the front and rear ends of the circuit board; a supporting bottom edge (212) is arranged at the bottom of the first support plate (21) and the second support plate (22) aligned with the limiting grooves (211), and the supporting bottom edge (212) is used to support the bottom of the circuit board.

4. A circuit board surface treatment device according to claim 3, characterized in that: A plurality of connecting rods (213) are evenly arranged on the top of the first support plate (21); an inserting plate (221) is arranged on the top of the second support plate (22) in alignment with the connecting rod (213); a slot (214) is arranged on the connecting rod (213) in alignment with the inserting plate (221); the inserting plate (221) is inserted into the slot (214); a clamping knob (215) is arranged on the upper surface of the connecting rod (213) in alignment with the slot (214); the clamping knob (215) is used to fix the distance between the first support plate (21) and the second support plate (22); an adapter (216) is arranged on the upper surface of the connecting rod (213) in the middle of the top end of the first support plate; a bearing (217) is arranged in the middle of the adapter (216); the adapter (216) cooperates with the bearing (217) to be rotatably connected to the lifting screw (3).

5. The circuit board surface treatment device according to claim 1, characterized in that: A connecting shaft (31) is provided at the bottom end of the lifting screw rod (3), a rotating handle (32) is provided at the top end of the lifting screw rod (3), a crank (33) is provided at the top edge of the rotating handle (32), and the crank (33) cooperates with the rotating handle (32) to rotate the lifting screw rod (3).

6. A circuit board surface treatment device according to claim 1, characterized in that: The bottom end of the cover (4) is provided with an insert ring (41), and the insert ring (41) is used to be inserted into the tin sinking cavity (13). The upper surface of the cover (4) is symmetrically provided with handles (42), and the middle part of the cover (4) is provided with a threaded hole (43), and the threaded hole (43) is used to be threadedly connected with the lifting screw (3).

7. A circuit board surface treatment device according to any one of claims 1 to 6, characterized in that: A clamping assembly (5) is provided on the top of the first support plate (21) and the second support plate (22), and the clamping assembly (5) comprises two clamping blocks (51) and a bidirectional screw (52), the clamping block (51) is L-shaped, and a connecting plate (511) is provided at one end of the clamping block (51) close to each other, two threads in different directions on the bidirectional screw (52) are respectively threadedly connected to the connecting plates (511) of the two clamping blocks (51), and limiting end plates (521) are provided at both ends of the bidirectional screw (52), and a rotating handle (522) is provided in the middle of the bidirectional screw (52).

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