Oven for PCB detection

Abstract

The utility model discloses an oven for PCB detection, which comprises a base, an outer box, an inner box, an electric box and a control box, two sides of the inner box are respectively provided with a feed port and a discharge port which are communicated with the outer side of the outer box, the feed port and the discharge port are respectively provided with a lifting door component, the inner box is internally provided with a conveying line for conveying PCBs, and the inner box is provided with a lifting door component. The two ends of the conveying line are in butt joint with the feeding port and the discharging port respectively, and a detection mechanism used for detecting the PCBs is arranged on the conveying line; an air inlet communicated with the inner box is formed in the bottom of the outer box, an opening and closing mechanism is arranged at the air inlet, an air outlet communicated with the inner box is formed in the top of the outer box, and the air outlet is connected with a fan arranged at the top of the outer box through a pipeline. The PCB is conveyed into the oven through the conveying line, the detection mechanism can detect the working condition of the PCB in a high-temperature state and the bearable temperature of the PCB, manual feeding and discharging are not needed, the detection efficiency of the PCB is effectively improved, and the oven can achieve rapid cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial ovens, in particular to an oven for PCB board detection. Background Art

[0002] PCB, or printed circuit board, is the provider of electrical connections for electronic components. Its main advantage is that it greatly reduces wiring and assembly errors, improves the level of automation and production labor rate. After the production is completed, the PCB board needs to go through the process of high temperature testing. The PCB board needs to be baked in an industrial oven, which has two functions: one is to dry the PCB board, and the other is to test the PCB board in a high temperature environment to check whether the various components on the PCB board can work normally and the heat resistance temperature that the PCB board can withstand.

[0003] However, due to structural limitations, existing high-temperature ovens require manual placement of PCB boards into the oven, and after baking and testing, the PCB boards need to be taken out manually and a new batch of PCB boards need to be placed into the oven, which is inefficient and not suitable for large-scale baking and testing operations. At the same time, the cooling speed of existing ovens is slow, and the PCB boards need to undergo rapid cooling to detect changes in the working state of the PCB boards, so existing ovens cannot meet usage requirements. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems, and an oven for PCB board detection is designed to solve the problems of low feeding and detection efficiency in industrial ovens.

[0005] The technical solution of the utility model for achieving the above-mentioned purpose is: an oven for PCB board detection, comprising a base, an outer box, an inner box, an electric box and a control box, wherein the outer box is arranged on the base, the inner box is arranged inside the outer box, the control box is arranged on the top of the outer box, the electric box is arranged on the rear side of the outer box, and both sides of the inner box are respectively provided with a feed port and a discharge port connected to the outer side of the outer box, and the feed port and the discharge port are provided with lifting door components, a conveyor line for conveying PCB boards is arranged in the inner box, and the two ends of the conveyor line are respectively connected with the feed port and the discharge port, and a detection mechanism for detecting PCB boards is arranged on the conveyor line;

[0006] An air inlet connected to the inner box is arranged at the bottom of the outer box, and an opening and closing mechanism is arranged at the air inlet. The opening and closing mechanism includes a rotating shaft, a driving cylinder for driving the rotating shaft to rotate, and a damper that can flip along with the rotating shaft. The damper can seal the air inlet. An air outlet connected to the inner box is arranged at the top of the outer box, and the air outlet is connected to a fan arranged on the top of the outer box through a pipe.

[0007] Preferably, a supporting crossbeam is provided above the outer box, a vertical beam is vertically fixed on the supporting crossbeam, the vertical beam and the supporting crossbeam are both located on the inner side of the control box, wherein the top of the vertical beam is fixedly connected to the top surface of the control box, and the two ends of the supporting crossbeam are respectively fixedly connected to the two side walls of the control box.

[0008] Preferably, the detection mechanism comprises an upper detection component and a lower detection component, the upper detection component is fixed to the bottom of the supporting beam, and the lower detection component is located at the bottom of the outer box.

[0009] Preferably, an observation window is provided on the top of the outer box, and a visual positioning mechanism with adjustable position is provided at the observation window, and the visual positioning mechanism is located above the feed end of the conveyor line.

[0010] Preferably, a vertical bar is provided on the top of the outer box, the vertical bar is connected to a first cross bar via a connecting piece, the first cross bar is connected to a second cross bar via a connecting piece, the first cross bar is perpendicular to the second cross bar, the second cross bar is connected to a fixing plate via a connecting piece, and the visual positioning mechanism is installed on the fixing plate.

[0011] Preferably, the opening and closing mechanism also includes a hinge support, two brackets, and two connecting plates respectively arranged at both ends of the rotating shaft, the two ends of the rotating shaft are rotatably connected to the two brackets respectively, the two connecting plates are respectively arranged on both sides of the damper, one end of the connecting plate is rotatably connected to the side of the damper, and the other end is fixedly connected to the rotating shaft, a connecting rod is fixedly arranged at one end of the rotating shaft, the output end of the driving cylinder is rotatably connected to one end of the connecting rod, and the other end is hinged to the hinge support.

[0012] Preferably, a sealing ring is circumferentially arranged on one side of the damper that contacts the air inlet.

[0013] Preferably, at least one wiring port is provided at the bottom of the outer box, a rubber plug is provided in the wiring port, and a supporting mechanism for supporting the rubber plug is provided below the wiring port.

[0014] Preferably, the supporting mechanism includes a rectangular frame and four adjustment plates respectively arranged at the four corners of the rectangular frame. An adjustment bolt is arranged at the lower end of the adjustment plate. The adjustment bolt is threadedly connected to the bottom of the outer box. The adjustment bolt can adjust the height of the rectangular frame.

[0015] Compared with the prior art, the beneficial effects are:

[0016] In the utility model, the PCB board is conveyed into the oven through the conveyor line, and the detection mechanism detects the working condition of the PCB board under high temperature and the temperature it can withstand. After the detection is completed, it is conveyed to the outside of the oven by the conveyor line, without manual loading and unloading, which effectively improves the detection efficiency of the PCB board. At the same time, when rapid cooling is required, the opening and closing mechanism at the bottom of the oven is automatically opened, and the fan works to draw the high-temperature air in the oven outward, and the external cooling air enters the oven from the air inlet, and the high-temperature air in the oven goes out from the air outlet, so as to realize rapid cooling of the oven. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the explosion structure of the oven in the utility model;

[0019] Figure 3 It is a schematic diagram of the top structure of the outer box in the oven;

[0020] Figure 4 It is a structural diagram of the position adjustment mechanism and the visual positioning mechanism on the top of the outer box;

[0021] Figure 5 It is a schematic diagram of the bottom structure of the outer box in the oven;

[0022] Figure 6 yes Figure 5 A magnified view of the structure at center A;

[0023] Figure 7 It is a structural diagram of the opening and closing mechanism.

[0024] In the figure, 1. base; 2. control box; 3. electric box; 4. lifting door component; 5. outer box; 501. air outlet; 502. observation window; 503. wiring port; 504. air inlet; 6. inner box; 7. front door panel component; 8. fan; 9. supporting crossbeam; 10. vertical beam; 11. opening and closing mechanism; 111. damper; 112. hinge support; 113. driving cylinder; 114. connecting rod; 115. bracket; 116. rotating shaft; 117. connecting plate; 12. supporting mechanism; 121. rectangular frame; 122. adjusting plate; 123. adjusting bolt; 13. visual positioning mechanism; 14. vertical rod; 15. first cross bar; 16. second cross bar; 17. fixing plate. DETAILED DESCRIPTION

[0025] 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. Based on the embodiments of 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.

[0026] like Figure 1 and Figure 2 As shown, the preferred embodiment of the utility model proposes an oven for PCB board detection, which mainly includes a base 1, an outer box 5, an inner box 6, an electric box 3, a control box 2 and other components, wherein the outer box 5 is fixed on the base 1, and the front of the outer box 5 has an opening for installing the inner box 6 inside the outer box 5, and the front of the inner box 6 also has an opening for installing the conveyor line into the inner box 6. The front of the outer box 5 is also provided with a front door, which is used to seal the inner box 6 in the outer box 5.

[0027] A feed port and a discharge port are respectively arranged on both sides of the outer box 5, and the feed port and the discharge port are connected with the inner box 6. Both ends of the conveying line are respectively connected with the feed port and the discharge port. The PCB board enters the conveying line in the inner box 6 from the feed port, and then comes out from the discharge port after baking and testing.

[0028] A detection mechanism is arranged on the conveyor line, and the detection mechanism comprises an upper detection component and a lower detection component, which are respectively used to detect the components on the upper part and the lower part of the PCB board, and detect the high temperature resistance of the PCB board.

[0029] A lifting door component 4 is provided on both sides of the outer box 5 for sealing the feed port and the discharge port to ensure the sealing performance and ensure that the high temperature environment in the inner box 6 does not affect the outside.

[0030] The control box 2 is arranged on the top of the outer box 5, and is used to install various control components. The electric box 3 is arranged on the back of the outer box 5, and is used to supply power to various components of the whole oven. The whole oven is modularly designed, simple and exquisite.

[0031] refer to Figure 2 A supporting crossbeam 9 and a vertical beam are arranged above the outer box 5. The two ends of the supporting crossbeam 9 are fixedly connected to the inner walls of the two sides of the electric control box respectively. The vertical beam is vertically fixed in the middle of the supporting crossbeam 9. The top of the vertical beam is fixedly connected to the top surface of the electric control box. The supporting structure composed of the supporting crossbeam 9 and the vertical beam can strengthen the overall strength of the electric control box. At the same time, the supporting crossbeam 9 can be used to install and fix the mechanism used to control the lifting in the upper detection component. The detection component in the upper detection component is located in the inner box 6. The mechanism used to control the lifting is vertically fixed to the bottom of the supporting crossbeam 9 and passes through the outer box 5 and the inner box 6. The mechanism used to control the lifting in the lower detection component is fixed in the base 1 and passes through the outer box 5 and the inner box 6.

[0032] like Figure 3 As shown, an observation window 502 is provided on one side of the top of the outer box 5 close to the feed port, a visual positioning mechanism 13 is provided at the position of the observation window 502, and a position adjustment mechanism matching the visual positioning mechanism 13 is also provided on the top of the outer box 5.

[0033] refer to Figure 4 The position adjustment mechanism is composed of a vertical rod 14, a first crossbar 15 and a second crossbar 16. The first crossbar 15 is connected to the vertical rod 14 through a connecting piece. The second crossbar 16 is perpendicular to the first crossbar 15 and is connected to the first crossbar 15 through a connecting piece. The vertical position of the first crossbar 15 on the vertical rod 14 and the horizontal position of the second crossbar 16 on the first crossbar 15 can be adjusted through the connecting piece. A fixing plate 17 is connected to the second crossbar 16 through a connecting piece. The visual positioning mechanism 13 is installed on the fixing plate 17. The horizontal position of the fixing plate 17 can be adjusted through the connecting piece. The three rods cooperate to adjust the position of the visual positioning mechanism 13.

[0034] The visual positioning mechanism 13 adopts a visual camera, which is located above the feeding end of the conveyor line and can perform visual positioning on the PCB board on the conveyor line.

[0035] refer to Figure 3 , Figure 5 An air inlet is provided at the bottom of the outer box 5, and an air outlet is provided at the top of the outer box 5, and both the air inlet and the air outlet are connected to the inner box 6. The air outlet is connected to the fan 8 through a pipeline, and the air exhaust port is fixed on the top of the outer box 5. When cooling is required, the air inlet is opened, the fan 8 exhausts air outward, and the air outside the oven circulates and flows into the inner box 6, quickly cooling the inner box 6, and the high-temperature gas in the inner box 6 will flow out through the air outlet.

[0036] An opening and closing mechanism 11 is also provided at the position of the air inlet at the bottom of the outer box 5 for controlling the opening and closing of the air inlet.

[0037] refer to Figure 7The opening and closing mechanism 11 is composed of a rotating shaft 116, a hinge support 112, a driving cylinder 113, two connecting plates 117, two brackets 115, a damper 111 and other components. The two brackets 115 are fixed to the bottom of the outer box 5, and the two ends of the rotating shaft 116 are respectively connected to the two brackets 115 for rotation. The two connecting plates 117 are respectively located on both sides of the damper 111, one end of which is fixed to the rotating shaft 116 and the other end is connected to the damper 111 for rotation. The hinge support 112 is also fixed to the bottom of the outer box 5. The driving cylinder 113 The output end is connected to one end of the rotating shaft 116 through a connecting rod 114, one end of the connecting rod 114 is fixedly connected to the rotating shaft 116, and the other end is rotatably connected to the output end of the driving cylinder 113, and the other end of the driving cylinder 113 is hinged to the hinge support 112. The driving cylinder 113 drives the rotating shaft 116 to rotate through the connecting rod 114, thereby driving the damper 111 to flip downward, so that the damper 111 fits at the air inlet and presses the damper 111 downward, so that the damper 111 forms a seal with the air inlet to ensure the sealing of the inner box 6.

[0038] The interior of the air door 111 is hollow and vacuumized to provide heat insulation. A sealing ring is provided along the circumference on one side of the air door 111 that is in contact with the inlet port to enhance sealing.

[0039] refer to Figure 5 Two wiring ports 503 are provided at the bottom of the outer box 5, and the wires of the various components in the inner box 6 will come out through the wiring ports 503. A rubber plug is provided at the wiring port 503, which can also be used to enhance the sealing of the inner box 6. The wires will pass through the rubber plug and pass out to the outside. A supporting mechanism 12 is provided below each wiring port 503, and the supporting mechanism 12 can be used to adjust the height of the rubber plug.

[0040] refer to Figure 6 The supporting mechanism 12 is composed of a rectangular frame 121 and four adjustment plates 122. The four adjustment plates 122 are arranged at the four corners of the rectangular frame 121 and extend obliquely upward. A through hole is provided in the middle of the rectangular frame 121 for the through hole of the wire and for fixing the rubber plug. An adjustment bolt 123 is provided on each adjustment plate 122. The adjustment bolt 123 is threadedly connected to the bottom of the outer box 5. By rotating the adjustment bolt 123, the rectangular frame 121 is driven to move up and down, thereby adjusting the height of the rubber plug, so as to adjust the tightness between the rubber plug and the wiring port 503.

[0041] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. An oven for PCB board detection, comprising a base (1), an outer box (5), an inner box (6), an electric box (3) and a control box (2), wherein the outer box (5) is arranged on the base (1), the inner box (6) is arranged inside the outer box (5), the control box (2) is arranged on the top of the outer box (5), and the electric box (3) is arranged on the rear side of the outer box (5), characterized in that: A feed port and a discharge port communicating with the outer side of the outer box (5) are respectively arranged on both sides of the inner box (6), and a lifting door component (4) is arranged at the feed port and the discharge port. A conveyor line for conveying PCB boards is arranged in the inner box (6), and two ends of the conveyor line are respectively connected to the feed port and the discharge port. A detection mechanism for detecting PCB boards is arranged on the conveyor line; The bottom of the outer box (5) is provided with an air inlet connected to the inner box (6); an opening and closing mechanism (11) is provided at the air inlet; the opening and closing mechanism (11) comprises a rotating shaft (116), a driving cylinder (113) for driving the rotating shaft (116) to rotate, and a damper (111) capable of turning along with the rotating shaft (116); the damper (111) can form a seal on the air inlet; the top of the outer box (5) is provided with an air outlet connected to the inner box (6); the air outlet is connected to a fan (8) arranged on the top of the outer box (5) through a pipeline.

2. A PCB board testing oven according to claim 1, characterized in that: A supporting crossbeam (9) is arranged above the outer box (5), and a vertical beam (10) is vertically fixed on the supporting crossbeam (9). The vertical beam (10) and the supporting crossbeam (9) are both located on the inner side of the control box (2), wherein the top of the vertical beam (10) is fixedly connected to the top surface of the control box (2), and the two ends of the supporting crossbeam (9) are respectively fixedly connected to the two side walls of the control box (2).

3. A PCB board testing oven according to claim 2, characterized in that: The detection mechanism comprises an upper detection component and a lower detection component, wherein the upper detection component is fixed to the bottom of the supporting crossbeam (9), and the lower detection component is located at the bottom of the outer box (5).

4. The oven for PCB board testing according to claim 1, characterized in that: An observation window (502) is provided on the top of the outer box (5), and a position-adjustable visual positioning mechanism (13) is provided at the observation window (502), and the visual positioning mechanism (13) is located above the feed end of the conveyor line.

5. The oven for PCB board testing according to claim 4, characterized in that: A vertical rod (14) is arranged on the top of the outer box (5); a first cross rod (15) is connected to the vertical rod (14) via a connecting piece; a second cross rod (16) is connected to the first cross rod (15) via a connecting piece; the first cross rod (15) is perpendicular to the second cross rod (16); a fixing plate (17) is connected to the second cross rod (16) via a connecting piece; and the visual positioning mechanism (13) is mounted on the fixing plate (17).

6. The oven for PCB board testing according to claim 1, characterized in that: The opening and closing mechanism (11) further comprises a hinge support (112), two brackets (115), and two connecting plates (117) respectively arranged at the two ends of the rotating shaft (116); the two ends of the rotating shaft (116) are respectively rotatably connected to the two brackets (115); the two connecting plates (117) are respectively arranged on the two sides of the damper (111); one end of the connecting plate (117) is rotatably connected to the side of the damper (111), and the other end is fixedly connected to the rotating shaft (116); a connecting rod (114) is fixedly arranged at one end of the rotating shaft (116); the output end of the driving cylinder (113) is rotatably connected to one end of the connecting rod (114), and the other end is hinged to the hinge support (112).

7. The oven for PCB board inspection according to claim 6, characterized in that: A sealing ring is arranged along the circumferential direction on one side of the damper (111) that contacts the air inlet.

8. The oven for PCB board inspection according to claim 1, characterized in that: At least one wiring port (503) is provided at the bottom of the outer box (5), a rubber plug is provided in the wiring port (503), and a supporting mechanism (12) for supporting the rubber plug is provided below the wiring port (503).

9. The oven for PCB board inspection according to claim 8, characterized in that: The supporting mechanism (12) comprises a rectangular frame (121), four adjustment plates (122) respectively arranged at four corners of the rectangular frame (121), an adjustment bolt (123) is arranged at the lower end of the adjustment plate (122), and the adjustment bolt (123) is threadedly connected to the bottom of the outer box (5), and the adjustment bolt (123) can adjust the height of the rectangular frame (121).

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