Tinning device for circuit board

Abstract

The utility model relates to the technical field of circuit board tinning, and discloses a circuit board tinning device which comprises a base, a tinning box fixedly connected to the top of the base, a clamping mechanism arranged on the top of the base, a tinning mechanism arranged on the top of the base, and supporting legs fixedly connected to the left side and the right side of the bottom of the base. Main supporting columns are fixedly connected to the periphery of the top of the base, a top plate is fixedly connected to the tops of the main supporting columns, a tinning box is fixedly connected to the top of the base, the clamping mechanism comprises a lifting column, the top plate is arranged at the top of the base, and the lifting column is fixedly connected to the bottom of the top plate. The sliding blocks on the surface move oppositely to drive the clamping blocks at the bottom to move, a worker can adjust the distance between the clamping mechanisms according to the size of a circuit board, namely, the circuit board can be clamped in the clamping grooves, the assembly can clamp multiple sets of circuit boards at the same time, the clamping effect is good, and the circuit boards are not prone to falling off.

Description

Technical Field

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

[0002] Tin plating and its alloys are coatings with good solderability and certain corrosion resistance, and are widely used in electronic components and printed circuit boards. In addition to physical methods such as hot dipping and spraying, the preparation of the tin layer has been widely used in industry due to its simplicity and ease. In the process of making circuit boards, a tin layer needs to be formed on the surface of the circuit board. Placing the circuit board in a tinning tank for tinning and using a nozzle to spray the solution onto the circuit board for tinning are two commonly used tinning methods.

[0003] According to a tinning device for circuit boards disclosed on the patent website (authorization announcement number: CN210491356U), "The utility model provides a tinning device for circuit boards, which includes a bottom plate, a tinning tank is arranged on the bottom plate, and a heater is arranged inside the tinning tank; a plurality of support columns are arranged on both sides of the top of the bottom plate, and a top plate is arranged on the top of the support column; a motor is arranged at the bottom of the top plate, and the output shaft of the motor is fixedly connected to a first screw rod; a clamping device is arranged between the plurality of support columns, and a sleeve is arranged on the top of the clamping device, and the sleeve is connected to the first screw rod by a thread. The tinning device has a simple structure and can realize automatic tinning by being driven by a motor; the clamping device can clamp the circuit board well, thereby improving the efficiency and effect of tinning."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The tinning device for circuit boards comprises a bottom plate, a tinning tank is arranged on the bottom plate, and a heater is arranged inside the tinning tank; a plurality of support columns are arranged on both sides of the top of the bottom plate, respectively. The device performs tinning by clamping the circuit board and placing it into the tinning tank, but the device is only provided with one set of clamping components, so that only one set of circuit boards can be clamped and processed, and the overall efficiency is low, which is not convenient for long-term operation. Utility Model Content

[0006] The purpose of the utility model is to provide a tinning device for a circuit board to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a tinning device for a circuit board, comprising a base, a tinning box is fixedly connected to the top of the base, a clamping mechanism is arranged on the top of the base, and a tinning mechanism is arranged on the top of the base.

[0008] The top of the backrest is fixedly connected with a spring, and the top of the backrest is fixedly connected with the backrest, and the bottom of the backrest is fixedly connected with the backrest, and the bottom of the backrest is fixedly connected with the backrest, and the bottom of the backrest is fixedly connected with the backrest, and the bottom of the backrest is fixedly connected with the backrest, and the top of the backrest is fixedly connected with the backrest, and the two-way screw is rotatably connected to the front of the connecting seat, and the control motor is arranged on the back of the connecting seat.

[0009] Preferably, the clamping mechanism is provided with five groups, the front and rear ends of the bidirectional screw surface are slidably connected with sliders, and the bidirectional screw is rotationally connected to the front output end of the control motor.

[0010] Preferably, the tinning mechanism includes a drain pipe, which is fixedly connected to the rear end of the bottom of the tinning box, a drain valve is arranged on the surface of the drain pipe, a motor fixing frame is fixedly connected to the bottom of the base, a motor is arranged inside the motor fixing frame, a rotating shaft is rotatably connected to the top of the motor, a fixed sleeve is fixedly connected to the surface of the rotating shaft, a stirring shaft is fixedly connected to the surface of the fixed sleeve, and a heating box is fixedly connected to the front of the tinning box. When the tinning operation is performed, the rotating shaft is driven to rotate by the motor at the bottom, and the tinning liquid in the tinning box is stirred by the stirring shaft, thereby expanding the contact area between the tinning liquid and the circuit board, so that the tinning operation can be performed quickly and efficiently.

[0011] Preferably, the rotating shaft is rotatably connected to the top output end of the motor, the motor fixing frame, the motor and the rotating shaft are provided in two groups, and the rotating shaft, the fixing sleeve and the stirring shaft are arranged inside the tinning box.

[0012] Preferably, legs are fixedly connected to the left and right sides of the bottom of the base, main support columns are fixedly connected to the top of the base, a top plate is fixedly connected to the top of the main support columns, and a tinning box is fixedly connected to the top of the base.

[0013] Compared with the prior art, the utility model provides a tinning device for a circuit board, which has the following beneficial effects:

[0014] 1. The circuit board tinning device is provided with a clamping mechanism. By operating the control motor to drive the bidirectional screw to rotate, the sliders on the surface move towards each other, driving the clamping block at the bottom to move. The staff can adjust the spacing of the clamping mechanism according to the size of the circuit board, so that the circuit board can be clamped in the clamping groove. The component can clamp multiple groups of circuit boards at the same time, and the clamping effect is good, and it is not easy to fall.

[0015] 2. The circuit board tinning device is provided with a tinning mechanism. When the tinning operation is performed, the motor at the bottom drives the rotating shaft to rotate, and the stirring shaft stirs the tinning liquid in the tinning box to expand the contact area between the tinning liquid and the circuit board, so that the tinning operation can be performed quickly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

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

[0018] Figure 2 This is a schematic diagram of the clamping mechanism of the utility model structure;

[0019] Figure 3 This is a schematic diagram of the structural clamping block of the utility model;

[0020] Figure 4 This is a schematic diagram of the tinning mechanism of the utility model structure;

[0021] Figure 5 It is a schematic diagram of the bottom structure of the utility model.

[0022] In the figure: 1. base; 2. support leg; 3. main support column; 4. top plate; 5. tinning box; 6. clamping mechanism; 61. lifting column; 62. connecting plate 1; 63. connecting plate 2; 64. connecting seat; 65. bidirectional screw; 66. control motor; 67. slider; 68. telescopic column; 69. clamping block; 601. clamping groove; 602. spring; 7. tinning mechanism; 71. drain pipe; 72. drain valve; 73. motor fixing bracket; 74. motor; 75. rotating shaft; 76. fixing sleeve; 77. stirring shaft; 78. heating box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[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 utility model provides the following technical solutions:

[0026] Embodiment 1

[0027] See also Figure 1-3 , a circuit board tinning device comprises a base 1, a tinning box 5 is fixedly connected to the top of the base 1, a clamping mechanism 6 is arranged on the top of the base 1, and a tinning mechanism 7 is arranged on the top of the base 1;

[0028] The clamping mechanism 6 includes a lifting column 61, a top plate 4 is arranged on the top of the base 1, a lifting column 61 is fixedly connected to the bottom of the top plate 4, a connecting plate 1 62 is fixedly connected to the bottom of the lifting column 61, a connecting plate 2 63 is fixedly connected to the bottom of the connecting plate 1 62, a connecting plate 2 63 is fixedly connected to the bottom, and a connecting seat 64 is fixedly connected to the front and rear ends of the bottom of the connecting plate 2 63, a bidirectional screw 65 is rotatably connected to the front of the connecting seat 64, a control motor 66 is arranged on the back of the connecting seat 64, a slider 67 is slidably connected to the surface of the bidirectional screw 65, a telescopic column 68 is fixedly connected to the bottom of the slider 67, and a telescopic column 68 is fixedly connected to the bottom of the slider 67. A clamping block 69 is fixedly connected to the bottom of the shrink column 68, a clamping groove 601 is fixedly connected to the inner side of the clamping block 69, and a spring 602 is fixedly connected to the top of the back of the clamping block 69. By operating the control motor 66 to drive the bidirectional screw 65 to rotate, the slider 67 on the surface moves in opposite directions, driving the clamping block 69 at the bottom to move. The staff can adjust the spacing of the clamping mechanism 6 according to the size of the circuit board, and the circuit board can be clamped in the clamping groove 601. The component can clamp multiple groups of circuit boards at the same time, and the clamping effect is good, and it is not easy to fall off;

[0029] The clamping mechanism 6 is provided with five groups, and the front and rear ends of the bidirectional screw 65 are slidably connected with sliders 67, and the bidirectional screw 65 is rotatably connected to the front output end of the control motor 66.

[0030] Embodiment 2

[0031] See also Figure 1-5 , and on the basis of the first embodiment, the tinning mechanism 7 further comprises a drain pipe 71, the drain pipe 71 is fixedly connected to the rear end of the bottom of the tinning box 5, a drain valve 72 is arranged on the surface of the drain pipe 71, a motor fixing frame 73 is fixedly connected to the bottom of the base 1, a motor 74 is arranged inside the motor fixing frame 73, a rotating shaft 75 is rotatably connected to the top of the motor 74, a fixed sleeve 76 is fixedly connected to the surface of the rotating shaft 75, a stirring shaft 77 is fixedly connected to the surface of the fixed sleeve 76, a heating box 78 is fixedly connected to the front of the tinning box 5, when the tinning operation is performed, the rotating shaft 75 is driven to rotate by the motor 74 at the bottom, and the tinning liquid in the tinning box 5 is not stirred by the stirring shaft 77, so as to expand the contact area between the tinning liquid and the circuit board, so that the tinning operation can be performed quickly and efficiently;

[0032] The rotating shaft 75 is rotatably connected to the top output end of the motor 74. The motor fixing frame 73, the motor 74 and the rotating shaft 75 are provided in two groups. The rotating shaft 75, the fixing sleeve 76 and the stirring shaft 77 are provided inside the tinning box 5.

[0033] The left and right sides of the bottom of the base 1 are fixedly connected with supporting legs 2, the top of the base 1 is fixedly connected with main supporting columns 3, the top of the main supporting columns 3 is fixedly connected with a top plate 4, and the top of the base 1 is fixedly connected with a tinning box 5.

[0034] In actual operation, when this device is used, the tin-plating liquid is added to the inside of the tin-plating box 5. The staff starts the control motor 66 according to the size of the circuit board to be processed, drives the bidirectional screw 65 to rotate, and makes the slider 67 on the surface move in opposite directions, and places the circuit board in the clamping groove 601 for clamping. The clamping effect of the clamping block 69 is ensured by the setting of the spring 602 to prevent the circuit board from slipping. The circuit board is lowered to the inside of the tin-plating box 5 for tinning by the lifting column 61 and the telescopic column 68. During tinning, the rotating shaft 75 is driven to rotate by the motor 74, and the tin-plating liquid is stirred by the fixed sleeve 76 and the stirring shaft 77 to expand the contact area between the tin-plating liquid and the circuit board, so that the tin-plating operation can be carried out quickly and efficiently. Later, the tin-plating liquid can be discharged from the drain pipe 71 by opening the drain valve 72.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A device for tinning a circuit board, comprising a base (1), characterized in that: A tinning box (5) is fixedly connected to the top of the base (1), a clamping mechanism (6) is provided on the top of the base (1), and a tinning mechanism (7) is provided on the top of the base (1); The clamping mechanism (6) comprises a lifting column (61), a top plate (4) is arranged on the top of the base (1), the bottom of the top plate (4) is fixedly connected to the lifting column (61), the bottom of the lifting column (61) is fixedly connected to a connecting plate 1 (62), the bottom of the connecting plate 1 (62) is fixedly connected to a connecting plate 2 (63), the bottom of the connecting plate 2 (63) is fixedly connected to a connecting seat (64) at both the front and rear ends of the bottom, the front of the connecting seat (64) is rotatably connected to a bidirectional screw rod (65), the back of the connecting seat (64) is arranged with a control motor (66), the surface of the bidirectional screw rod (65) is slidably connected to a slider (67), the bottom of the slider (67) is fixedly connected to a telescopic column (68), the bottom of the telescopic column (68) is fixedly connected to a clamping block (69), the inner side of the clamping block (69) is fixedly connected to a clamping groove (601), and the top of the back of the clamping block (69) is fixedly connected to a spring (602).

2. The tinning device for circuit boards according to claim 1, characterized in that: The clamping mechanism (6) is provided with five groups, and the front and rear ends of the surface of the bidirectional screw (65) are slidably connected to sliders (67), and the bidirectional screw (65) is rotatably connected to the front output end of the control motor (66).

3. The tinning device for circuit boards according to claim 1, characterized in that: The tinning mechanism (7) comprises a drain pipe (71), the drain pipe (71) is fixedly connected to the rear end of the bottom of the tinning box (5), a drain valve (72) is arranged on the surface of the drain pipe (71), a motor fixing frame (73) is fixedly connected to the bottom of the base (1), a motor (74) is arranged inside the motor fixing frame (73), a rotating shaft (75) is rotatably connected to the top of the motor (74), a fixing sleeve (76) is fixedly connected to the surface of the rotating shaft (75), a stirring shaft (77) is fixedly connected to the surface of the fixing sleeve (76), and a heating box (78) is fixedly connected to the front of the tinning box (5).

4. The tinning device for circuit board according to claim 3, characterized in that: The rotating shaft (75) is rotatably connected to the top output end of the motor (74); the motor fixing frame (73), the motor (74) and the rotating shaft (75) are provided in two groups; the rotating shaft (75), the fixing sleeve (76) and the stirring shaft (77) are provided inside the tinning box (5).

5. The tinning device for circuit boards according to claim 1, characterized in that: The base (1) has legs (2) fixedly connected to the left and right sides of the bottom, the base (1) has main support columns (3) fixedly connected to the top, the main support columns (3) have a top plate (4) fixedly connected to the top, and the base (1) has a tinning box (5) fixedly connected to the top.

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